diff --git a/Documentation/dontdiff b/Documentation/dontdiff
index b89a739..b47493f 100644
--- a/Documentation/dontdiff
+++ b/Documentation/dontdiff
@@ -2,9 +2,11 @@
 *.aux
 *.bin
 *.bz2
+*.c.[012]*.*
 *.cis
 *.cpio
 *.csp
+*.dbg
 *.dsp
 *.dvi
 *.elf
@@ -14,6 +16,7 @@
 *.gcov
 *.gen.S
 *.gif
+*.gmo
 *.grep
 *.grp
 *.gz
@@ -48,14 +51,17 @@
 *.tab.h
 *.tex
 *.ver
+*.vim
 *.xml
 *.xz
 *_MODULES
+*_reg_safe.h
 *_vga16.c
 *~
 \#*#
 *.9
-.*
+.[^g]*
+.gen*
 .*.d
 .mm
 53c700_d.h
@@ -69,6 +75,7 @@ Image
 Module.markers
 Module.symvers
 PENDING
+PERF*
 SCCS
 System.map*
 TAGS
@@ -80,6 +87,7 @@ aic7*seq.h*
 aicasm
 aicdb.h*
 altivec*.c
+ashldi3.S
 asm-offsets.h
 asm_offsets.h
 autoconf.h*
@@ -92,19 +100,24 @@ bounds.h
 bsetup
 btfixupprep
 build
+builtin-policy.h
 bvmlinux
 bzImage*
 capability_names.h
 capflags.c
 classlist.h*
+clut_vga16.c
+common-cmds.h
 comp*.log
 compile.h*
 conf
 config
 config-*
 config_data.h*
+config.c
 config.mak
 config.mak.autogen
+config.tmp
 conmakehash
 consolemap_deftbl.c*
 cpustr.h
@@ -115,9 +128,11 @@ devlist.h*
 dnotify_test
 docproc
 dslm
+dtc-lexer.lex.c
 elf2ecoff
 elfconfig.h*
 evergreen_reg_safe.h
+exception_policy.conf
 fixdep
 flask.h
 fore200e_mkfirm
@@ -125,12 +140,15 @@ fore200e_pca_fw.c*
 gconf
 gconf.glade.h
 gen-devlist
+gen-kdb_cmds.c
 gen_crc32table
 gen_init_cpio
 generated
 genheaders
 genksyms
 *_gray256.c
+hash
+hid-example
 hpet_example
 hugepage-mmap
 hugepage-shm
@@ -145,14 +163,14 @@ int32.c
 int4.c
 int8.c
 kallsyms
-kconfig
+kern_constants.h
 keywords.c
 ksym.c*
 ksym.h*
 kxgettext
 lex.c
 lex.*.c
-linux
+lib1funcs.S
 logo_*.c
 logo_*_clut224.c
 logo_*_mono.c
@@ -162,14 +180,15 @@ mach-types.h
 machtypes.h
 map
 map_hugetlb
-media
 mconf
+mdp
 miboot*
 mk_elfconfig
 mkboot
 mkbugboot
 mkcpustr
 mkdep
+mkpiggy
 mkprep
 mkregtable
 mktables
@@ -185,6 +204,8 @@ oui.c*
 page-types
 parse.c
 parse.h
+parse-events*
+pasyms.h
 patches*
 pca200e.bin
 pca200e_ecd.bin2
@@ -194,6 +215,7 @@ perf-archive
 piggyback
 piggy.gzip
 piggy.S
+pmu-*
 pnmtologo
 ppc_defs.h*
 pss_boot.h
@@ -203,7 +225,10 @@ r200_reg_safe.h
 r300_reg_safe.h
 r420_reg_safe.h
 r600_reg_safe.h
+realmode.lds
+realmode.relocs
 recordmcount
+regdb.c
 relocs
 rlim_names.h
 rn50_reg_safe.h
@@ -213,8 +238,12 @@ series
 setup
 setup.bin
 setup.elf
+signing_key*
+size_overflow_hash.h
 sImage
+slabinfo
 sm_tbl*
+sortextable
 split-include
 syscalltab.h
 tables.c
@@ -224,6 +253,7 @@ tftpboot.img
 timeconst.h
 times.h*
 trix_boot.h
+user_constants.h
 utsrelease.h*
 vdso-syms.lds
 vdso.lds
@@ -235,13 +265,17 @@ vdso32.lds
 vdso32.so.dbg
 vdso64.lds
 vdso64.so.dbg
+vdsox32.lds
+vdsox32-syms.lds
 version.h*
 vmImage
 vmlinux
 vmlinux-*
 vmlinux.aout
 vmlinux.bin.all
+vmlinux.bin.bz2
 vmlinux.lds
+vmlinux.relocs
 vmlinuz
 voffset.h
 vsyscall.lds
@@ -249,9 +283,12 @@ vsyscall_32.lds
 wanxlfw.inc
 uImage
 unifdef
+utsrelease.h
 wakeup.bin
 wakeup.elf
 wakeup.lds
+x509*
 zImage*
 zconf.hash.c
+zconf.lex.c
 zoffset.h
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 8ccbf27..afffeb4 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -948,6 +948,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			Format: <unsigned int> such that (rxsize & ~0x1fffc0) == 0.
 			Default: 1024
 
+	grsec_proc_gid= [GRKERNSEC_PROC_USERGROUP] Chooses GID to
+			ignore grsecurity's /proc restrictions
+
+
 	hashdist=	[KNL,NUMA] Large hashes allocated during boot
 			are distributed across NUMA nodes.  Defaults on
 			for 64-bit NUMA, off otherwise.
@@ -2147,6 +2151,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			the specified number of seconds.  This is to be used if
 			your oopses keep scrolling off the screen.
 
+	pax_nouderef	[X86] disables UDEREF.  Most likely needed under certain
+			virtualization environments that don't cope well with the
+			expand down segment used by UDEREF on X86-32 or the frequent
+			page table updates on X86-64.
+
+	pax_softmode=	0/1 to disable/enable PaX softmode on boot already.
+
+	pax_extra_latent_entropy
+			Enable a very simple form of latent entropy extraction
+			from the first 4GB of memory as the bootmem allocator
+			passes the memory pages to the buddy allocator.
+
 	pcbit=		[HW,ISDN]
 
 	pcd.		[PARIDE]
diff --git a/Makefile b/Makefile
index bfbfaf9..d0b1bb8 100644
--- a/Makefile
+++ b/Makefile
@@ -241,8 +241,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 
 HOSTCC       = gcc
 HOSTCXX      = g++
-HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
-HOSTCXXFLAGS = -O2
+HOSTCFLAGS   = -Wall -W -Wmissing-prototypes -Wstrict-prototypes -Wno-unused-parameter -Wno-missing-field-initializers -O2 -fomit-frame-pointer -fno-delete-null-pointer-checks
+HOSTCFLAGS  += $(call cc-option, -Wno-empty-body)
+HOSTCXXFLAGS = -O2 -Wall -W -fno-delete-null-pointer-checks
 
 # Decide whether to build built-in, modular, or both.
 # Normally, just do built-in.
@@ -414,8 +415,8 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 # Rules shared between *config targets and build targets
 
 # Basic helpers built in scripts/
-PHONY += scripts_basic
-scripts_basic:
+PHONY += scripts_basic gcc-plugins
+scripts_basic: gcc-plugins
 	$(Q)$(MAKE) $(build)=scripts/basic
 	$(Q)rm -f .tmp_quiet_recordmcount
 
@@ -576,6 +577,65 @@ else
 KBUILD_CFLAGS	+= -O2
 endif
 
+ifndef DISABLE_PAX_PLUGINS
+ifeq ($(call cc-ifversion, -ge, 0408, y), y)
+PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCXX)" "$(HOSTCXX)" "$(CC)")
+else
+PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)")
+endif
+ifneq ($(PLUGINCC),)
+ifdef CONFIG_PAX_CONSTIFY_PLUGIN
+CONSTIFY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/constify_plugin.so -DCONSTIFY_PLUGIN
+endif
+ifdef CONFIG_PAX_MEMORY_STACKLEAK
+STACKLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/stackleak_plugin.so -DSTACKLEAK_PLUGIN
+STACKLEAK_PLUGIN_CFLAGS += -fplugin-arg-stackleak_plugin-track-lowest-sp=100
+endif
+ifdef CONFIG_KALLOCSTAT_PLUGIN
+KALLOCSTAT_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kallocstat_plugin.so
+endif
+ifdef CONFIG_PAX_KERNEXEC_PLUGIN
+KERNEXEC_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kernexec_plugin.so
+KERNEXEC_PLUGIN_CFLAGS += -fplugin-arg-kernexec_plugin-method=$(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD) -DKERNEXEC_PLUGIN
+KERNEXEC_PLUGIN_AFLAGS := -DKERNEXEC_PLUGIN
+endif
+ifdef CONFIG_CHECKER_PLUGIN
+ifeq ($(call cc-ifversion, -ge, 0406, y), y)
+CHECKER_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/checker_plugin.so -DCHECKER_PLUGIN
+endif
+endif
+COLORIZE_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/colorize_plugin.so
+ifdef CONFIG_PAX_SIZE_OVERFLOW
+SIZE_OVERFLOW_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/size_overflow_plugin.so -DSIZE_OVERFLOW_PLUGIN
+endif
+ifdef CONFIG_PAX_LATENT_ENTROPY
+LATENT_ENTROPY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/latent_entropy_plugin.so -DLATENT_ENTROPY_PLUGIN
+endif
+ifdef CONFIG_PAX_MEMORY_STRUCTLEAK
+STRUCTLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/structleak_plugin.so -DSTRUCTLEAK_PLUGIN
+endif
+GCC_PLUGINS_CFLAGS := $(CONSTIFY_PLUGIN_CFLAGS) $(STACKLEAK_PLUGIN_CFLAGS) $(KALLOCSTAT_PLUGIN_CFLAGS)
+GCC_PLUGINS_CFLAGS += $(KERNEXEC_PLUGIN_CFLAGS) $(CHECKER_PLUGIN_CFLAGS) $(COLORIZE_PLUGIN_CFLAGS)
+GCC_PLUGINS_CFLAGS += $(SIZE_OVERFLOW_PLUGIN_CFLAGS) $(LATENT_ENTROPY_PLUGIN_CFLAGS) $(STRUCTLEAK_PLUGIN_CFLAGS)
+GCC_PLUGINS_AFLAGS := $(KERNEXEC_PLUGIN_AFLAGS)
+export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGINS_AFLAGS CONSTIFY_PLUGIN
+ifeq ($(KBUILD_EXTMOD),)
+gcc-plugins:
+	$(Q)$(MAKE) $(build)=tools/gcc
+else
+gcc-plugins: ;
+endif
+else
+gcc-plugins:
+ifeq ($(call cc-ifversion, -ge, 0405, y), y)
+	$(error Your gcc installation does not support plugins.  If the necessary headers for plugin support are missing, they should be installed.  On Debian, apt-get install gcc-<ver>-plugin-dev.  If you choose to ignore this error and lessen the improvements provided by this patch, re-run make with the DISABLE_PAX_PLUGINS=y argument.))
+else
+	$(Q)echo "warning, your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least"
+endif
+	$(Q)echo "PAX_MEMORY_STACKLEAK, constification, PAX_LATENT_ENTROPY and other features will be less secure.  PAX_SIZE_OVERFLOW will not be active."
+endif
+endif
+
 include $(srctree)/arch/$(SRCARCH)/Makefile
 
 ifdef CONFIG_READABLE_ASM
@@ -733,7 +793,7 @@ export mod_sign_cmd
 
 
 ifeq ($(KBUILD_EXTMOD),)
-core-y		+= kernel/ mm/ fs/ ipc/ security/ crypto/ block/
+core-y		+= kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/
 
 vmlinux-dirs	:= $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
 		     $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
@@ -780,6 +840,8 @@ endif
 
 # The actual objects are generated when descending, 
 # make sure no implicit rule kicks in
+$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
+$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
 $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
 
 # Handle descending into subdirectories listed in $(vmlinux-dirs)
@@ -789,7 +851,7 @@ $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
 # Error messages still appears in the original language
 
 PHONY += $(vmlinux-dirs)
-$(vmlinux-dirs): prepare scripts
+$(vmlinux-dirs): gcc-plugins prepare scripts
 	$(Q)$(MAKE) $(build)=$@
 
 # Store (new) KERNELRELASE string in include/config/kernel.release
@@ -833,6 +895,7 @@ prepare0: archprepare FORCE
 	$(Q)$(MAKE) $(build)=.
 
 # All the preparing..
+prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS))
 prepare: prepare0
 
 # Generate some files
@@ -940,6 +1003,8 @@ all: modules
 #	using awk while concatenating to the final file.
 
 PHONY += modules
+modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
+modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
 	$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
 	@$(kecho) '  Building modules, stage 2.';
@@ -955,7 +1020,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
 
 # Target to prepare building external modules
 PHONY += modules_prepare
-modules_prepare: prepare scripts
+modules_prepare: gcc-plugins prepare scripts
 
 # Target to install modules
 PHONY += modules_install
@@ -1021,7 +1086,7 @@ MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
 		  Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
 		  signing_key.priv signing_key.x509 x509.genkey		\
 		  extra_certificates signing_key.x509.keyid		\
-		  signing_key.x509.signer
+		  signing_key.x509.signer tools/gcc/size_overflow_hash.h
 
 # clean - Delete most, but leave enough to build external modules
 #
@@ -1061,6 +1126,7 @@ distclean: mrproper
 		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
 		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
 		-o -name '.*.rej' \
+		-o -name '.*.rej' -o -name '*.so' \
 		-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
 		-type f -print | xargs rm -f
 
@@ -1221,6 +1287,8 @@ PHONY += $(module-dirs) modules
 $(module-dirs): crmodverdir $(objtree)/Module.symvers
 	$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
 
+modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
+modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
 modules: $(module-dirs)
 	@$(kecho) '  Building modules, stage 2.';
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
@@ -1357,17 +1425,21 @@ else
         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
 endif
 
-%.s: %.c prepare scripts FORCE
+%.s: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
+%.s: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
+%.s: %.c gcc-plugins prepare scripts FORCE
 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
 %.i: %.c prepare scripts FORCE
 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.o: %.c prepare scripts FORCE
+%.o: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
+%.o: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
+%.o: %.c gcc-plugins prepare scripts FORCE
 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
 %.lst: %.c prepare scripts FORCE
 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.s: %.S prepare scripts FORCE
+%.s: %.S gcc-plugins prepare scripts FORCE
 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.o: %.S prepare scripts FORCE
+%.o: %.S gcc-plugins prepare scripts FORCE
 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
 %.symtypes: %.c prepare scripts FORCE
 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
@@ -1377,11 +1449,15 @@ endif
 	$(cmd_crmodverdir)
 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
 	$(build)=$(build-dir)
-%/: prepare scripts FORCE
+%/: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
+%/: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
+%/: gcc-plugins prepare scripts FORCE
 	$(cmd_crmodverdir)
 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
 	$(build)=$(build-dir)
-%.ko: prepare scripts FORCE
+%.ko: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
+%.ko: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
+%.ko: gcc-plugins prepare scripts FORCE
 	$(cmd_crmodverdir)
 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
 	$(build)=$(build-dir) $(@:.ko=.o)
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
index c2cbe4f..f7264b4 100644
--- a/arch/alpha/include/asm/atomic.h
+++ b/arch/alpha/include/asm/atomic.h
@@ -250,6 +250,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 #define atomic_dec(v) atomic_sub(1,(v))
 #define atomic64_dec(v) atomic64_sub(1,(v))
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
 #define smp_mb__before_atomic_inc()	smp_mb()
diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h
index ad368a9..fbe0f25 100644
--- a/arch/alpha/include/asm/cache.h
+++ b/arch/alpha/include/asm/cache.h
@@ -4,19 +4,19 @@
 #ifndef __ARCH_ALPHA_CACHE_H
 #define __ARCH_ALPHA_CACHE_H
 
+#include <linux/const.h>
 
 /* Bytes per L1 (data) cache line. */
 #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6)
-# define L1_CACHE_BYTES     64
 # define L1_CACHE_SHIFT     6
 #else
 /* Both EV4 and EV5 are write-through, read-allocate,
    direct-mapped, physical.
 */
-# define L1_CACHE_BYTES     32
 # define L1_CACHE_SHIFT     5
 #endif
 
+#define L1_CACHE_BYTES     (_AC(1,UL) << L1_CACHE_SHIFT)
 #define SMP_CACHE_BYTES    L1_CACHE_BYTES
 
 #endif
diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h
index 968d999..d36b2df 100644
--- a/arch/alpha/include/asm/elf.h
+++ b/arch/alpha/include/asm/elf.h
@@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 
 #define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x1000000)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL)
+
+#define PAX_DELTA_MMAP_LEN	(current->personality & ADDR_LIMIT_32BIT ? 14 : 28)
+#define PAX_DELTA_STACK_LEN	(current->personality & ADDR_LIMIT_32BIT ? 14 : 19)
+#endif
+
 /* $0 is set by ld.so to a pointer to a function which might be 
    registered using atexit.  This provides a mean for the dynamic
    linker to call DT_FINI functions for shared libraries that have
diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
index bc2a0da..8ad11ee 100644
--- a/arch/alpha/include/asm/pgalloc.h
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -29,6 +29,12 @@ pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
 	pgd_set(pgd, pmd);
 }
 
+static inline void
+pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+{
+	pgd_populate(mm, pgd, pmd);
+}
+
 extern pgd_t *pgd_alloc(struct mm_struct *mm);
 
 static inline void
diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
index 81a4342..348b927 100644
--- a/arch/alpha/include/asm/pgtable.h
+++ b/arch/alpha/include/asm/pgtable.h
@@ -102,6 +102,17 @@ struct vm_area_struct;
 #define PAGE_SHARED	__pgprot(_PAGE_VALID | __ACCESS_BITS)
 #define PAGE_COPY	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
 #define PAGE_READONLY	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
+
+#ifdef CONFIG_PAX_PAGEEXEC
+# define PAGE_SHARED_NOEXEC	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE)
+# define PAGE_COPY_NOEXEC	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
+# define PAGE_READONLY_NOEXEC	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
+#else
+# define PAGE_SHARED_NOEXEC	PAGE_SHARED
+# define PAGE_COPY_NOEXEC	PAGE_COPY
+# define PAGE_READONLY_NOEXEC	PAGE_READONLY
+#endif
+
 #define PAGE_KERNEL	__pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
 
 #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
index 2fd00b7..cfd5069 100644
--- a/arch/alpha/kernel/module.c
+++ b/arch/alpha/kernel/module.c
@@ -160,7 +160,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
 
 	/* The small sections were sorted to the end of the segment.
 	   The following should definitely cover them.  */
-	gp = (u64)me->module_core + me->core_size - 0x8000;
+	gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000;
 	got = sechdrs[me->arch.gotsecindex].sh_addr;
 
 	for (i = 0; i < n; i++) {
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index b9e37ad..44c24e7 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1297,10 +1297,11 @@ SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
    generic version except that we know how to honor ADDR_LIMIT_32BIT.  */
 
 static unsigned long
-arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
-		         unsigned long limit)
+arch_get_unmapped_area_1(struct file *filp, unsigned long addr, unsigned long len,
+		         unsigned long limit, unsigned long flags)
 {
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
 
 	info.flags = 0;
 	info.length = len;
@@ -1308,6 +1309,7 @@ arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
 	info.high_limit = limit;
 	info.align_mask = 0;
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
@@ -1340,20 +1342,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	   merely specific addresses, but regions of memory -- perhaps
 	   this feature should be incorporated into all ports?  */
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
-		addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
+		addr = arch_get_unmapped_area_1 (filp, PAGE_ALIGN(addr), len, limit, flags);
 		if (addr != (unsigned long) -ENOMEM)
 			return addr;
 	}
 
 	/* Next, try allocating at TASK_UNMAPPED_BASE.  */
-	addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
-					 len, limit);
+	addr = arch_get_unmapped_area_1 (filp, PAGE_ALIGN(current->mm->mmap_base), len, limit, flags);
+
 	if (addr != (unsigned long) -ENOMEM)
 		return addr;
 
 	/* Finally, try allocating in low memory.  */
-	addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
+	addr = arch_get_unmapped_area_1 (filp, PAGE_SIZE, len, limit, flags);
 
 	return addr;
 }
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index 0c4132d..88f0d53 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -53,6 +53,124 @@ __load_new_mm_context(struct mm_struct *next_mm)
 	__reload_thread(pcb);
 }
 
+#ifdef CONFIG_PAX_PAGEEXEC
+/*
+ * PaX: decide what to do with offenders (regs->pc = fault address)
+ *
+ * returns 1 when task should be killed
+ *         2 when patched PLT trampoline was detected
+ *         3 when unpatched PLT trampoline was detected
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+
+#ifdef CONFIG_PAX_EMUPLT
+	int err;
+
+	do { /* PaX: patched PLT emulation #1 */
+		unsigned int ldah, ldq, jmp;
+
+		err = get_user(ldah, (unsigned int *)regs->pc);
+		err |= get_user(ldq, (unsigned int *)(regs->pc+4));
+		err |= get_user(jmp, (unsigned int *)(regs->pc+8));
+
+		if (err)
+			break;
+
+		if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
+		    (ldq & 0xFFFF0000U) == 0xA77B0000U &&
+		    jmp == 0x6BFB0000U)
+		{
+			unsigned long r27, addr;
+			unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
+			unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL;
+
+			addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
+			err = get_user(r27, (unsigned long *)addr);
+			if (err)
+				break;
+
+			regs->r27 = r27;
+			regs->pc = r27;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #2 */
+		unsigned int ldah, lda, br;
+
+		err = get_user(ldah, (unsigned int *)regs->pc);
+		err |= get_user(lda, (unsigned int *)(regs->pc+4));
+		err |= get_user(br, (unsigned int *)(regs->pc+8));
+
+		if (err)
+			break;
+
+		if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
+		    (lda & 0xFFFF0000U) == 0xA77B0000U &&
+		    (br & 0xFFE00000U) == 0xC3E00000U)
+		{
+			unsigned long addr = br | 0xFFFFFFFFFFE00000UL;
+			unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
+			unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL;
+
+			regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
+			regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: unpatched PLT emulation */
+		unsigned int br;
+
+		err = get_user(br, (unsigned int *)regs->pc);
+
+		if (!err && (br & 0xFFE00000U) == 0xC3800000U) {
+			unsigned int br2, ldq, nop, jmp;
+			unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver;
+
+			addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
+			err = get_user(br2, (unsigned int *)addr);
+			err |= get_user(ldq, (unsigned int *)(addr+4));
+			err |= get_user(nop, (unsigned int *)(addr+8));
+			err |= get_user(jmp, (unsigned int *)(addr+12));
+			err |= get_user(resolver, (unsigned long *)(addr+16));
+
+			if (err)
+				break;
+
+			if (br2 == 0xC3600000U &&
+			    ldq == 0xA77B000CU &&
+			    nop == 0x47FF041FU &&
+			    jmp == 0x6B7B0000U)
+			{
+				regs->r28 = regs->pc+4;
+				regs->r27 = addr+16;
+				regs->pc = resolver;
+				return 3;
+			}
+		}
+	} while (0);
+#endif
+
+	return 1;
+}
+
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 5; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
 
 /*
  * This routine handles page faults.  It determines the address,
@@ -133,8 +251,29 @@ retry:
  good_area:
 	si_code = SEGV_ACCERR;
 	if (cause < 0) {
-		if (!(vma->vm_flags & VM_EXEC))
+		if (!(vma->vm_flags & VM_EXEC)) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+			if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc)
+				goto bad_area;
+
+			up_read(&mm->mmap_sem);
+			switch (pax_handle_fetch_fault(regs)) {
+
+#ifdef CONFIG_PAX_EMUPLT
+			case 2:
+			case 3:
+				return;
+#endif
+
+			}
+			pax_report_fault(regs, (void *)regs->pc, (void *)rdusp());
+			do_group_exit(SIGKILL);
+#else
 			goto bad_area;
+#endif
+
+		}
 	} else if (!cause) {
 		/* Allow reads even for write-only mappings */
 		if (!(vma->vm_flags & (VM_READ | VM_WRITE)))
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1cacda4..2cef624 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1850,7 +1850,7 @@ config ALIGNMENT_TRAP
 
 config UACCESS_WITH_MEMCPY
 	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
-	depends on MMU
+	depends on MMU && !PAX_MEMORY_UDEREF
 	default y if CPU_FEROCEON
 	help
 	  Implement faster copy_to_user and clear_user methods for CPU
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index c79f61f..9ac0642 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -17,17 +17,35 @@
 #include <asm/barrier.h>
 #include <asm/cmpxchg.h>
 
+#ifdef CONFIG_GENERIC_ATOMIC64
+#include <asm-generic/atomic64.h>
+#endif
+
 #define ATOMIC_INIT(i)	{ (i) }
 
 #ifdef __KERNEL__
 
+#define _ASM_EXTABLE(from, to)		\
+"	.pushsection __ex_table,\"a\"\n"\
+"	.align	3\n"			\
+"	.long	" #from ", " #to"\n"	\
+"	.popsection"
+
 /*
  * On ARM, ordinary assignment (str instruction) doesn't clear the local
  * strex/ldrex monitor on some implementations. The reason we can use it for
  * atomic_set() is the clrex or dummy strex done on every exception return.
  */
 #define atomic_read(v)	(*(volatile int *)&(v)->counter)
+static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
+{
+	return v->counter;
+}
 #define atomic_set(v,i)	(((v)->counter) = (i))
+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
+{
+	v->counter = i;
+}
 
 #if __LINUX_ARM_ARCH__ >= 6
 
@@ -42,6 +60,35 @@ static inline void atomic_add(int i, atomic_t *v)
 	int result;
 
 	__asm__ __volatile__("@ atomic_add\n"
+"1:	ldrex	%1, [%3]\n"
+"	adds	%0, %1, %4\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"2:	bkpt	0xf103\n"
+"3:\n"
+#endif
+
+"	strex	%1, %0, [%3]\n"
+"	teq	%1, #0\n"
+"	bne	1b"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
+	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+	: "r" (&v->counter), "Ir" (i)
+	: "cc");
+}
+
+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
+{
+	unsigned long tmp;
+	int result;
+
+	__asm__ __volatile__("@ atomic_add_unchecked\n"
 "1:	ldrex	%0, [%3]\n"
 "	add	%0, %0, %4\n"
 "	strex	%1, %0, [%3]\n"
@@ -60,6 +107,42 @@ static inline int atomic_add_return(int i, atomic_t *v)
 	smp_mb();
 
 	__asm__ __volatile__("@ atomic_add_return\n"
+"1:	ldrex	%1, [%3]\n"
+"	adds	%0, %1, %4\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"	mov	%0, %1\n"
+"2:	bkpt	0xf103\n"
+"3:\n"
+#endif
+
+"	strex	%1, %0, [%3]\n"
+"	teq	%1, #0\n"
+"	bne	1b"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
+	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+	: "r" (&v->counter), "Ir" (i)
+	: "cc");
+
+	smp_mb();
+
+	return result;
+}
+
+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
+{
+	unsigned long tmp;
+	int result;
+
+	smp_mb();
+
+	__asm__ __volatile__("@ atomic_add_return_unchecked\n"
 "1:	ldrex	%0, [%3]\n"
 "	add	%0, %0, %4\n"
 "	strex	%1, %0, [%3]\n"
@@ -80,6 +163,35 @@ static inline void atomic_sub(int i, atomic_t *v)
 	int result;
 
 	__asm__ __volatile__("@ atomic_sub\n"
+"1:	ldrex	%1, [%3]\n"
+"	subs	%0, %1, %4\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"2:	bkpt	0xf103\n"
+"3:\n"
+#endif
+
+"	strex	%1, %0, [%3]\n"
+"	teq	%1, #0\n"
+"	bne	1b"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
+	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+	: "r" (&v->counter), "Ir" (i)
+	: "cc");
+}
+
+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
+{
+	unsigned long tmp;
+	int result;
+
+	__asm__ __volatile__("@ atomic_sub_unchecked\n"
 "1:	ldrex	%0, [%3]\n"
 "	sub	%0, %0, %4\n"
 "	strex	%1, %0, [%3]\n"
@@ -98,11 +210,25 @@ static inline int atomic_sub_return(int i, atomic_t *v)
 	smp_mb();
 
 	__asm__ __volatile__("@ atomic_sub_return\n"
-"1:	ldrex	%0, [%3]\n"
-"	sub	%0, %0, %4\n"
+"1:	ldrex	%1, [%3]\n"
+"	subs	%0, %1, %4\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"	mov	%0, %1\n"
+"2:	bkpt	0xf103\n"
+"3:\n"
+#endif
+
 "	strex	%1, %0, [%3]\n"
 "	teq	%1, #0\n"
 "	bne	1b"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
 	: "r" (&v->counter), "Ir" (i)
 	: "cc");
@@ -134,6 +260,28 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
 	return oldval;
 }
 
+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *ptr, int old, int new)
+{
+	unsigned long oldval, res;
+
+	smp_mb();
+
+	do {
+		__asm__ __volatile__("@ atomic_cmpxchg_unchecked\n"
+		"ldrex	%1, [%3]\n"
+		"mov	%0, #0\n"
+		"teq	%1, %4\n"
+		"strexeq %0, %5, [%3]\n"
+		    : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
+		    : "r" (&ptr->counter), "Ir" (old), "r" (new)
+		    : "cc");
+	} while (res);
+
+	smp_mb();
+
+	return oldval;
+}
+
 static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
 {
 	unsigned long tmp, tmp2;
@@ -167,7 +315,17 @@ static inline int atomic_add_return(int i, atomic_t *v)
 
 	return val;
 }
+
+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
+{
+	return atomic_add_return(i, v);
+}
+
 #define atomic_add(i, v)	(void) atomic_add_return(i, v)
+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
+{
+	(void) atomic_add_return(i, v);
+}
 
 static inline int atomic_sub_return(int i, atomic_t *v)
 {
@@ -182,6 +340,10 @@ static inline int atomic_sub_return(int i, atomic_t *v)
 	return val;
 }
 #define atomic_sub(i, v)	(void) atomic_sub_return(i, v)
+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
+{
+	(void) atomic_sub_return(i, v);
+}
 
 static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 {
@@ -197,6 +359,11 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 	return ret;
 }
 
+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
+{
+	return atomic_cmpxchg(v, old, new);
+}
+
 static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
 {
 	unsigned long flags;
@@ -209,6 +376,10 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
 #endif /* __LINUX_ARM_ARCH__ */
 
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
+{
+	return xchg(&v->counter, new);
+}
 
 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 {
@@ -221,11 +392,27 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc(v)		atomic_add(1, v)
+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
+{
+	atomic_add_unchecked(1, v);
+}
 #define atomic_dec(v)		atomic_sub(1, v)
+static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
+{
+	atomic_sub_unchecked(1, v);
+}
 
 #define atomic_inc_and_test(v)	(atomic_add_return(1, v) == 0)
+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_add_return_unchecked(1, v) == 0;
+}
 #define atomic_dec_and_test(v)	(atomic_sub_return(1, v) == 0)
 #define atomic_inc_return(v)    (atomic_add_return(1, v))
+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_add_return_unchecked(1, v);
+}
 #define atomic_dec_return(v)    (atomic_sub_return(1, v))
 #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
 
@@ -241,6 +428,14 @@ typedef struct {
 	u64 __aligned(8) counter;
 } atomic64_t;
 
+#ifdef CONFIG_PAX_REFCOUNT
+typedef struct {
+	u64 __aligned(8) counter;
+} atomic64_unchecked_t;
+#else
+typedef atomic64_t atomic64_unchecked_t;
+#endif
+
 #define ATOMIC64_INIT(i) { (i) }
 
 static inline u64 atomic64_read(const atomic64_t *v)
@@ -256,6 +451,19 @@ static inline u64 atomic64_read(const atomic64_t *v)
 	return result;
 }
 
+static inline u64 atomic64_read_unchecked(atomic64_unchecked_t *v)
+{
+	u64 result;
+
+	__asm__ __volatile__("@ atomic64_read_unchecked\n"
+"	ldrexd	%0, %H0, [%1]"
+	: "=&r" (result)
+	: "r" (&v->counter), "Qo" (v->counter)
+	);
+
+	return result;
+}
+
 static inline void atomic64_set(atomic64_t *v, u64 i)
 {
 	u64 tmp;
@@ -270,6 +478,20 @@ static inline void atomic64_set(atomic64_t *v, u64 i)
 	: "cc");
 }
 
+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, u64 i)
+{
+	u64 tmp;
+
+	__asm__ __volatile__("@ atomic64_set_unchecked\n"
+"1:	ldrexd	%0, %H0, [%2]\n"
+"	strexd	%0, %3, %H3, [%2]\n"
+"	teq	%0, #0\n"
+"	bne	1b"
+	: "=&r" (tmp), "=Qo" (v->counter)
+	: "r" (&v->counter), "r" (i)
+	: "cc");
+}
+
 static inline void atomic64_add(u64 i, atomic64_t *v)
 {
 	u64 result;
@@ -278,6 +500,36 @@ static inline void atomic64_add(u64 i, atomic64_t *v)
 	__asm__ __volatile__("@ atomic64_add\n"
 "1:	ldrexd	%0, %H0, [%3]\n"
 "	adds	%0, %0, %4\n"
+"	adcs	%H0, %H0, %H4\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"2:	bkpt	0xf103\n"
+"3:\n"
+#endif
+
+"	strexd	%1, %0, %H0, [%3]\n"
+"	teq	%1, #0\n"
+"	bne	1b"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
+	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+	: "r" (&v->counter), "r" (i)
+	: "cc");
+}
+
+static inline void atomic64_add_unchecked(u64 i, atomic64_unchecked_t *v)
+{
+	u64 result;
+	unsigned long tmp;
+
+	__asm__ __volatile__("@ atomic64_add_unchecked\n"
+"1:	ldrexd	%0, %H0, [%3]\n"
+"	adds	%0, %0, %4\n"
 "	adc	%H0, %H0, %H4\n"
 "	strexd	%1, %0, %H0, [%3]\n"
 "	teq	%1, #0\n"
@@ -289,12 +541,49 @@ static inline void atomic64_add(u64 i, atomic64_t *v)
 
 static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
 {
-	u64 result;
-	unsigned long tmp;
+	u64 result, tmp;
 
 	smp_mb();
 
 	__asm__ __volatile__("@ atomic64_add_return\n"
+"1:	ldrexd	%1, %H1, [%3]\n"
+"	adds	%0, %1, %4\n"
+"	adcs	%H0, %H1, %H4\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"	mov	%0, %1\n"
+"	mov	%H0, %H1\n"
+"2:	bkpt	0xf103\n"
+"3:\n"
+#endif
+
+"	strexd	%1, %0, %H0, [%3]\n"
+"	teq	%1, #0\n"
+"	bne	1b"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
+	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+	: "r" (&v->counter), "r" (i)
+	: "cc");
+
+	smp_mb();
+
+	return result;
+}
+
+static inline u64 atomic64_add_return_unchecked(u64 i, atomic64_unchecked_t *v)
+{
+	u64 result;
+	unsigned long tmp;
+
+	smp_mb();
+
+	__asm__ __volatile__("@ atomic64_add_return_unchecked\n"
 "1:	ldrexd	%0, %H0, [%3]\n"
 "	adds	%0, %0, %4\n"
 "	adc	%H0, %H0, %H4\n"
@@ -318,6 +607,36 @@ static inline void atomic64_sub(u64 i, atomic64_t *v)
 	__asm__ __volatile__("@ atomic64_sub\n"
 "1:	ldrexd	%0, %H0, [%3]\n"
 "	subs	%0, %0, %4\n"
+"	sbcs	%H0, %H0, %H4\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"2:	bkpt	0xf103\n"
+"3:\n"
+#endif
+
+"	strexd	%1, %0, %H0, [%3]\n"
+"	teq	%1, #0\n"
+"	bne	1b"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
+	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+	: "r" (&v->counter), "r" (i)
+	: "cc");
+}
+
+static inline void atomic64_sub_unchecked(u64 i, atomic64_unchecked_t *v)
+{
+	u64 result;
+	unsigned long tmp;
+
+	__asm__ __volatile__("@ atomic64_sub_unchecked\n"
+"1:	ldrexd	%0, %H0, [%3]\n"
+"	subs	%0, %0, %4\n"
 "	sbc	%H0, %H0, %H4\n"
 "	strexd	%1, %0, %H0, [%3]\n"
 "	teq	%1, #0\n"
@@ -329,18 +648,32 @@ static inline void atomic64_sub(u64 i, atomic64_t *v)
 
 static inline u64 atomic64_sub_return(u64 i, atomic64_t *v)
 {
-	u64 result;
-	unsigned long tmp;
+	u64 result, tmp;
 
 	smp_mb();
 
 	__asm__ __volatile__("@ atomic64_sub_return\n"
-"1:	ldrexd	%0, %H0, [%3]\n"
-"	subs	%0, %0, %4\n"
-"	sbc	%H0, %H0, %H4\n"
+"1:	ldrexd	%1, %H1, [%3]\n"
+"	subs	%0, %1, %4\n"
+"	sbcs	%H0, %H1, %H4\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"	mov	%0, %1\n"
+"	mov	%H0, %H1\n"
+"2:	bkpt	0xf103\n"
+"3:\n"
+#endif
+
 "	strexd	%1, %0, %H0, [%3]\n"
 "	teq	%1, #0\n"
 "	bne	1b"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
 	: "r" (&v->counter), "r" (i)
 	: "cc");
@@ -374,6 +707,30 @@ static inline u64 atomic64_cmpxchg(atomic64_t *ptr, u64 old, u64 new)
 	return oldval;
 }
 
+static inline u64 atomic64_cmpxchg_unchecked(atomic64_unchecked_t *ptr, u64 old, u64 new)
+{
+	u64 oldval;
+	unsigned long res;
+
+	smp_mb();
+
+	do {
+		__asm__ __volatile__("@ atomic64_cmpxchg_unchecked\n"
+		"ldrexd		%1, %H1, [%3]\n"
+		"mov		%0, #0\n"
+		"teq		%1, %4\n"
+		"teqeq		%H1, %H4\n"
+		"strexdeq	%0, %5, %H5, [%3]"
+		: "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
+		: "r" (&ptr->counter), "r" (old), "r" (new)
+		: "cc");
+	} while (res);
+
+	smp_mb();
+
+	return oldval;
+}
+
 static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new)
 {
 	u64 result;
@@ -397,21 +754,34 @@ static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new)
 
 static inline u64 atomic64_dec_if_positive(atomic64_t *v)
 {
-	u64 result;
-	unsigned long tmp;
+	u64 result, tmp;
 
 	smp_mb();
 
 	__asm__ __volatile__("@ atomic64_dec_if_positive\n"
-"1:	ldrexd	%0, %H0, [%3]\n"
-"	subs	%0, %0, #1\n"
-"	sbc	%H0, %H0, #0\n"
+"1:	ldrexd	%1, %H1, [%3]\n"
+"	subs	%0, %1, #1\n"
+"	sbcs	%H0, %H1, #0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"	mov	%0, %1\n"
+"	mov	%H0, %H1\n"
+"2:	bkpt	0xf103\n"
+"3:\n"
+#endif
+
 "	teq	%H0, #0\n"
-"	bmi	2f\n"
+"	bmi	4f\n"
 "	strexd	%1, %0, %H0, [%3]\n"
 "	teq	%1, #0\n"
 "	bne	1b\n"
-"2:"
+"4:\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
 	: "r" (&v->counter)
 	: "cc");
@@ -434,13 +804,25 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
 "	teq	%0, %5\n"
 "	teqeq	%H0, %H5\n"
 "	moveq	%1, #0\n"
-"	beq	2f\n"
+"	beq	4f\n"
 "	adds	%0, %0, %6\n"
-"	adc	%H0, %H0, %H6\n"
+"	adcs	%H0, %H0, %H6\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"2:	bkpt	0xf103\n"
+"3:\n"
+#endif
+
 "	strexd	%2, %0, %H0, [%4]\n"
 "	teq	%2, #0\n"
 "	bne	1b\n"
-"2:"
+"4:\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
 	: "=&r" (val), "+r" (ret), "=&r" (tmp), "+Qo" (v->counter)
 	: "r" (&v->counter), "r" (u), "r" (a)
 	: "cc");
@@ -453,10 +835,13 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
 
 #define atomic64_add_negative(a, v)	(atomic64_add_return((a), (v)) < 0)
 #define atomic64_inc(v)			atomic64_add(1LL, (v))
+#define atomic64_inc_unchecked(v)	atomic64_add_unchecked(1LL, (v))
 #define atomic64_inc_return(v)		atomic64_add_return(1LL, (v))
+#define atomic64_inc_return_unchecked(v)	atomic64_add_return_unchecked(1LL, (v))
 #define atomic64_inc_and_test(v)	(atomic64_inc_return(v) == 0)
 #define atomic64_sub_and_test(a, v)	(atomic64_sub_return((a), (v)) == 0)
 #define atomic64_dec(v)			atomic64_sub(1LL, (v))
+#define atomic64_dec_unchecked(v)	atomic64_sub_unchecked(1LL, (v))
 #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
index 75fe66b..ba3dee4 100644
--- a/arch/arm/include/asm/cache.h
+++ b/arch/arm/include/asm/cache.h
@@ -4,8 +4,10 @@
 #ifndef __ASMARM_CACHE_H
 #define __ASMARM_CACHE_H
 
+#include <linux/const.h>
+
 #define L1_CACHE_SHIFT		CONFIG_ARM_L1_CACHE_SHIFT
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 /*
  * Memory returned by kmalloc() may be used for DMA, so we must make
@@ -24,5 +26,6 @@
 #endif
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
+#define __read_only __attribute__ ((__section__(".data..read_only")))
 
 #endif
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index e1489c5..d418304 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -116,7 +116,7 @@ struct cpu_cache_fns {
 	void (*dma_unmap_area)(const void *, size_t, int);
 
 	void (*dma_flush_range)(const void *, const void *);
-};
+} __no_const;
 
 /*
  * Select the calling method
diff --git a/arch/arm/include/asm/checksum.h b/arch/arm/include/asm/checksum.h
index 6dcc164..b14d917 100644
--- a/arch/arm/include/asm/checksum.h
+++ b/arch/arm/include/asm/checksum.h
@@ -37,7 +37,19 @@ __wsum
 csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum);
 
 __wsum
-csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
+__csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
+
+static inline __wsum
+csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr)
+{
+	__wsum ret;
+	pax_open_userland();
+	ret = __csum_partial_copy_from_user(src, dst, len, sum, err_ptr);
+	pax_close_userland();
+	return ret;
+}
+
+
 
 /*
  * 	Fold a partial checksum without adding pseudo headers
diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 4f009c1..466c59b 100644
--- a/arch/arm/include/asm/cmpxchg.h
+++ b/arch/arm/include/asm/cmpxchg.h
@@ -102,6 +102,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
 
 #define xchg(ptr,x) \
 	((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
+#define xchg_unchecked(ptr,x) \
+	((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
 
 #include <asm-generic/cmpxchg-local.h>
 
diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h
index 6ddbe44..b5e38b1 100644
--- a/arch/arm/include/asm/domain.h
+++ b/arch/arm/include/asm/domain.h
@@ -48,18 +48,37 @@
  * Domain types
  */
 #define DOMAIN_NOACCESS	0
-#define DOMAIN_CLIENT	1
 #ifdef CONFIG_CPU_USE_DOMAINS
+#define DOMAIN_USERCLIENT	1
+#define DOMAIN_KERNELCLIENT	1
 #define DOMAIN_MANAGER	3
+#define DOMAIN_VECTORS		DOMAIN_USER
 #else
+
+#ifdef CONFIG_PAX_KERNEXEC
 #define DOMAIN_MANAGER	1
+#define DOMAIN_KERNEXEC	3
+#else
+#define DOMAIN_MANAGER	1
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+#define DOMAIN_USERCLIENT	0
+#define DOMAIN_UDEREF		1
+#define DOMAIN_VECTORS		DOMAIN_KERNEL
+#else
+#define DOMAIN_USERCLIENT	1
+#define DOMAIN_VECTORS		DOMAIN_USER
+#endif
+#define DOMAIN_KERNELCLIENT	1
+
 #endif
 
 #define domain_val(dom,type)	((type) << (2*(dom)))
 
 #ifndef __ASSEMBLY__
 
-#ifdef CONFIG_CPU_USE_DOMAINS
+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
 static inline void set_domain(unsigned val)
 {
 	asm volatile(
@@ -68,15 +87,7 @@ static inline void set_domain(unsigned val)
 	isb();
 }
 
-#define modify_domain(dom,type)					\
-	do {							\
-	struct thread_info *thread = current_thread_info();	\
-	unsigned int domain = thread->cpu_domain;		\
-	domain &= ~domain_val(dom, DOMAIN_MANAGER);		\
-	thread->cpu_domain = domain | domain_val(dom, type);	\
-	set_domain(thread->cpu_domain);				\
-	} while (0)
-
+extern void modify_domain(unsigned int dom, unsigned int type);
 #else
 static inline void set_domain(unsigned val) { }
 static inline void modify_domain(unsigned dom, unsigned type)	{ }
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index 38050b1..9d90e8b 100644
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -116,7 +116,14 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
    the loader.  We need to make sure that it is out of the way of the program
    that it will "exec", and that there is sufficient room for the brk.  */
 
-#define ELF_ET_DYN_BASE	(2 * TASK_SIZE / 3)
+#define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
+
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	0x00008000UL
+
+#define PAX_DELTA_MMAP_LEN	((current->personality == PER_LINUX_32BIT) ? 16 : 10)
+#define PAX_DELTA_STACK_LEN	((current->personality == PER_LINUX_32BIT) ? 16 : 10)
+#endif
 
 /* When the program starts, a1 contains a pointer to a function to be 
    registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
@@ -126,8 +133,4 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
 extern void elf_set_personality(const struct elf32_hdr *);
 #define SET_PERSONALITY(ex)	elf_set_personality(&(ex))
 
-struct mm_struct;
-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
-#define arch_randomize_brk arch_randomize_brk
-
 #endif
diff --git a/arch/arm/include/asm/fncpy.h b/arch/arm/include/asm/fncpy.h
index de53547..52b9a28 100644
--- a/arch/arm/include/asm/fncpy.h
+++ b/arch/arm/include/asm/fncpy.h
@@ -81,7 +81,9 @@
 	BUG_ON((uintptr_t)(dest_buf) & (FNCPY_ALIGN - 1) ||		\
 		(__funcp_address & ~(uintptr_t)1 & (FNCPY_ALIGN - 1)));	\
 									\
+	pax_open_kernel();						\
 	memcpy(dest_buf, (void const *)(__funcp_address & ~1), size);	\
+	pax_close_kernel();						\
 	flush_icache_range((unsigned long)(dest_buf),			\
 		(unsigned long)(dest_buf) + (size));			\
 									\
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index e42cf59..7b94b8f 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -50,6 +50,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
 		return -EFAULT;
 
+	pax_open_userland();
+
 	smp_mb();
 	__asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
 	"1:	ldrex	%1, [%4]\n"
@@ -65,6 +67,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	: "cc", "memory");
 	smp_mb();
 
+	pax_close_userland();
+
 	*uval = val;
 	return ret;
 }
@@ -95,6 +99,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
 		return -EFAULT;
 
+	pax_open_userland();
+
 	__asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
 	"1:	" TUSER(ldr) "	%1, [%4]\n"
 	"	teq	%1, %2\n"
@@ -105,6 +111,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	: "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)
 	: "cc", "memory");
 
+	pax_close_userland();
+
 	*uval = val;
 	return ret;
 }
@@ -127,6 +135,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 		return -EFAULT;
 
 	pagefault_disable();	/* implies preempt_disable() */
+	pax_open_userland();
 
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -148,6 +157,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 		ret = -ENOSYS;
 	}
 
+	pax_close_userland();
 	pagefault_enable();	/* subsumes preempt_enable() */
 
 	if (!ret) {
diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h
index 83eb2f7..ed77159 100644
--- a/arch/arm/include/asm/kmap_types.h
+++ b/arch/arm/include/asm/kmap_types.h
@@ -4,6 +4,6 @@
 /*
  * This is the "bare minimum".  AIO seems to require this.
  */
-#define KM_TYPE_NR 16
+#define KM_TYPE_NR 17
 
 #endif
diff --git a/arch/arm/include/asm/mach/dma.h b/arch/arm/include/asm/mach/dma.h
index 9e614a1..3302cca 100644
--- a/arch/arm/include/asm/mach/dma.h
+++ b/arch/arm/include/asm/mach/dma.h
@@ -22,7 +22,7 @@ struct dma_ops {
 	int	(*residue)(unsigned int, dma_t *);		/* optional */
 	int	(*setspeed)(unsigned int, dma_t *, int);	/* optional */
 	const char *type;
-};
+} __do_const;
 
 struct dma_struct {
 	void		*addr;		/* single DMA address		*/
diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
index 2fe141f..192dc01 100644
--- a/arch/arm/include/asm/mach/map.h
+++ b/arch/arm/include/asm/mach/map.h
@@ -27,13 +27,16 @@ struct map_desc {
 #define MT_MINICLEAN		6
 #define MT_LOW_VECTORS		7
 #define MT_HIGH_VECTORS		8
-#define MT_MEMORY		9
+#define MT_MEMORY_RWX		9
 #define MT_ROM			10
-#define MT_MEMORY_NONCACHED	11
+#define MT_MEMORY_NONCACHED_RX	11
 #define MT_MEMORY_DTCM		12
 #define MT_MEMORY_ITCM		13
 #define MT_MEMORY_SO		14
 #define MT_MEMORY_DMA_READY	15
+#define MT_MEMORY_RW		16
+#define MT_MEMORY_RX		17
+#define MT_MEMORY_NONCACHED_RW	18
 
 #ifdef CONFIG_MMU
 extern void iotable_init(struct map_desc *, int);
diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h
index 12f71a1..04e063c 100644
--- a/arch/arm/include/asm/outercache.h
+++ b/arch/arm/include/asm/outercache.h
@@ -35,7 +35,7 @@ struct outer_cache_fns {
 #endif
 	void (*set_debug)(unsigned long);
 	void (*resume)(void);
-};
+} __no_const;
 
 #ifdef CONFIG_OUTER_CACHE
 
diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
index 812a494..71fc0b6 100644
--- a/arch/arm/include/asm/page.h
+++ b/arch/arm/include/asm/page.h
@@ -114,7 +114,7 @@ struct cpu_user_fns {
 	void (*cpu_clear_user_highpage)(struct page *page, unsigned long vaddr);
 	void (*cpu_copy_user_highpage)(struct page *to, struct page *from,
 			unsigned long vaddr, struct vm_area_struct *vma);
-};
+} __no_const;
 
 #ifdef MULTI_USER
 extern struct cpu_user_fns cpu_user;
diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
index 943504f..c37a730 100644
--- a/arch/arm/include/asm/pgalloc.h
+++ b/arch/arm/include/asm/pgalloc.h
@@ -17,6 +17,7 @@
 #include <asm/processor.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
+#include <asm/system_info.h>
 
 #define check_pgt_cache()		do { } while (0)
 
@@ -43,6 +44,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 	set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE));
 }
 
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_populate(mm, pud, pmd);
+}
+
 #else	/* !CONFIG_ARM_LPAE */
 
 /*
@@ -51,6 +57,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 #define pmd_alloc_one(mm,addr)		({ BUG(); ((pmd_t *)2); })
 #define pmd_free(mm, pmd)		do { } while (0)
 #define pud_populate(mm,pmd,pte)	BUG()
+#define pud_populate_kernel(mm,pmd,pte)	BUG()
 
 #endif	/* CONFIG_ARM_LPAE */
 
@@ -126,6 +133,19 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
 	__free_page(pte);
 }
 
+static inline void __section_update(pmd_t *pmdp, unsigned long addr, pmdval_t prot)
+{
+#ifdef CONFIG_ARM_LPAE
+	pmdp[0] = __pmd(pmd_val(pmdp[0]) | prot);
+#else
+	if (addr & SECTION_SIZE)
+		pmdp[1] = __pmd(pmd_val(pmdp[1]) | prot);
+	else
+		pmdp[0] = __pmd(pmd_val(pmdp[0]) | prot);
+#endif
+	flush_pmd_entry(pmdp);
+}
+
 static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,
 				  pmdval_t prot)
 {
@@ -155,7 +175,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep)
 static inline void
 pmd_populate(struct mm_struct *mm, pmd_t *pmdp, pgtable_t ptep)
 {
-	__pmd_populate(pmdp, page_to_phys(ptep), _PAGE_USER_TABLE);
+	__pmd_populate(pmdp, page_to_phys(ptep), _PAGE_USER_TABLE | __supported_pmd_mask);
 }
 #define pmd_pgtable(pmd) pmd_page(pmd)
 
diff --git a/arch/arm/include/asm/pgtable-2level-hwdef.h b/arch/arm/include/asm/pgtable-2level-hwdef.h
index 5cfba15..f415e1a 100644
--- a/arch/arm/include/asm/pgtable-2level-hwdef.h
+++ b/arch/arm/include/asm/pgtable-2level-hwdef.h
@@ -20,12 +20,15 @@
 #define PMD_TYPE_FAULT		(_AT(pmdval_t, 0) << 0)
 #define PMD_TYPE_TABLE		(_AT(pmdval_t, 1) << 0)
 #define PMD_TYPE_SECT		(_AT(pmdval_t, 2) << 0)
+#define PMD_PXNTABLE		(_AT(pmdval_t, 1) << 2)		/* v7 */
 #define PMD_BIT4		(_AT(pmdval_t, 1) << 4)
 #define PMD_DOMAIN(x)		(_AT(pmdval_t, (x)) << 5)
 #define PMD_PROTECTION		(_AT(pmdval_t, 1) << 9)		/* v5 */
+
 /*
  *   - section
  */
+#define PMD_SECT_PXN		(_AT(pmdval_t, 1) << 0)		/* v7 */
 #define PMD_SECT_BUFFERABLE	(_AT(pmdval_t, 1) << 2)
 #define PMD_SECT_CACHEABLE	(_AT(pmdval_t, 1) << 3)
 #define PMD_SECT_XN		(_AT(pmdval_t, 1) << 4)		/* v6 */
@@ -37,6 +40,7 @@
 #define PMD_SECT_nG		(_AT(pmdval_t, 1) << 17)	/* v6 */
 #define PMD_SECT_SUPER		(_AT(pmdval_t, 1) << 18)	/* v6 */
 #define PMD_SECT_AF		(_AT(pmdval_t, 0))
+#define PMD_SECT_RDONLY		(_AT(pmdval_t, 0))
 
 #define PMD_SECT_UNCACHED	(_AT(pmdval_t, 0))
 #define PMD_SECT_BUFFERED	(PMD_SECT_BUFFERABLE)
@@ -66,6 +70,7 @@
  *   - extended small page/tiny page
  */
 #define PTE_EXT_XN		(_AT(pteval_t, 1) << 0)		/* v6 */
+#define PTE_EXT_PXN		(_AT(pteval_t, 1) << 2)		/* v7 */
 #define PTE_EXT_AP_MASK		(_AT(pteval_t, 3) << 4)
 #define PTE_EXT_AP0		(_AT(pteval_t, 1) << 4)
 #define PTE_EXT_AP1		(_AT(pteval_t, 2) << 4)
diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
index f97ee02..07f1be5 100644
--- a/arch/arm/include/asm/pgtable-2level.h
+++ b/arch/arm/include/asm/pgtable-2level.h
@@ -125,6 +125,7 @@
 #define L_PTE_XN		(_AT(pteval_t, 1) << 9)
 #define L_PTE_SHARED		(_AT(pteval_t, 1) << 10)	/* shared(v6), coherent(xsc3) */
 #define L_PTE_NONE		(_AT(pteval_t, 1) << 11)
+#define L_PTE_PXN		(_AT(pteval_t, 1) << 12)	/* v7*/
 
 /*
  * These are the memory types, defined to be compatible with
diff --git a/arch/arm/include/asm/pgtable-3level-hwdef.h b/arch/arm/include/asm/pgtable-3level-hwdef.h
index 18f5cef..25b8f43 100644
--- a/arch/arm/include/asm/pgtable-3level-hwdef.h
+++ b/arch/arm/include/asm/pgtable-3level-hwdef.h
@@ -41,6 +41,7 @@
  */
 #define PMD_SECT_BUFFERABLE	(_AT(pmdval_t, 1) << 2)
 #define PMD_SECT_CACHEABLE	(_AT(pmdval_t, 1) << 3)
+#define PMD_SECT_RDONLY		(_AT(pmdval_t, 1) << 7)
 #define PMD_SECT_S		(_AT(pmdval_t, 3) << 8)
 #define PMD_SECT_AF		(_AT(pmdval_t, 1) << 10)
 #define PMD_SECT_nG		(_AT(pmdval_t, 1) << 11)
@@ -71,6 +72,7 @@
 #define PTE_EXT_SHARED		(_AT(pteval_t, 3) << 8)		/* SH[1:0], inner shareable */
 #define PTE_EXT_AF		(_AT(pteval_t, 1) << 10)	/* Access Flag */
 #define PTE_EXT_NG		(_AT(pteval_t, 1) << 11)	/* nG */
+#define PTE_EXT_PXN		(_AT(pteval_t, 1) << 53)	/* PXN */
 #define PTE_EXT_XN		(_AT(pteval_t, 1) << 54)	/* XN */
 
 /*
diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index 86b8fe3..e25f975 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -74,6 +74,7 @@
 #define L_PTE_RDONLY		(_AT(pteval_t, 1) << 7)		/* AP[2] */
 #define L_PTE_SHARED		(_AT(pteval_t, 3) << 8)		/* SH[1:0], inner shareable */
 #define L_PTE_YOUNG		(_AT(pteval_t, 1) << 10)	/* AF */
+#define L_PTE_PXN		(_AT(pteval_t, 1) << 53)	/* PXN */
 #define L_PTE_XN		(_AT(pteval_t, 1) << 54)	/* XN */
 #define L_PTE_DIRTY		(_AT(pteval_t, 1) << 55)	/* unused */
 #define L_PTE_SPECIAL		(_AT(pteval_t, 1) << 56)	/* unused */
@@ -82,6 +83,7 @@
 /*
  * To be used in assembly code with the upper page attributes.
  */
+#define L_PTE_PXN_HIGH		(1 << (53 - 32))
 #define L_PTE_XN_HIGH		(1 << (54 - 32))
 #define L_PTE_DIRTY_HIGH	(1 << (55 - 32))
 
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index 9bcd262..fba731c 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -30,6 +30,9 @@
 #include <asm/pgtable-2level.h>
 #endif
 
+#define ktla_ktva(addr)		(addr)
+#define ktva_ktla(addr)		(addr)
+
 /*
  * Just any arbitrary offset to the start of the vmalloc VM area: the
  * current 8MB value just means that there will be a 8MB "hole" after the
@@ -45,6 +48,9 @@
 #define LIBRARY_TEXT_START	0x0c000000
 
 #ifndef __ASSEMBLY__
+extern pteval_t __supported_pte_mask;
+extern pmdval_t __supported_pmd_mask;
+
 extern void __pte_error(const char *file, int line, pte_t);
 extern void __pmd_error(const char *file, int line, pmd_t);
 extern void __pgd_error(const char *file, int line, pgd_t);
@@ -53,6 +59,50 @@ extern void __pgd_error(const char *file, int line, pgd_t);
 #define pmd_ERROR(pmd)		__pmd_error(__FILE__, __LINE__, pmd)
 #define pgd_ERROR(pgd)		__pgd_error(__FILE__, __LINE__, pgd)
 
+#define  __HAVE_ARCH_PAX_OPEN_KERNEL
+#define  __HAVE_ARCH_PAX_CLOSE_KERNEL
+
+#ifdef CONFIG_PAX_KERNEXEC
+#include <asm/domain.h>
+#include <linux/thread_info.h>
+#include <linux/preempt.h>
+#endif
+
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+static inline int test_domain(int domain, int domaintype)
+{
+	return ((current_thread_info()->cpu_domain) & domain_val(domain, 3)) == domain_val(domain, domaintype);
+}
+#endif
+
+#ifdef CONFIG_PAX_KERNEXEC
+static inline unsigned long pax_open_kernel(void) {
+#ifdef CONFIG_ARM_LPAE
+	/* TODO */
+#else
+	preempt_disable();
+	BUG_ON(test_domain(DOMAIN_KERNEL, DOMAIN_KERNEXEC));
+	modify_domain(DOMAIN_KERNEL, DOMAIN_KERNEXEC);
+#endif
+	return 0;
+}
+
+static inline unsigned long pax_close_kernel(void) {
+#ifdef CONFIG_ARM_LPAE
+	/* TODO */
+#else
+	BUG_ON(test_domain(DOMAIN_KERNEL, DOMAIN_MANAGER));
+	/* DOMAIN_MANAGER = "client" under KERNEXEC */
+	modify_domain(DOMAIN_KERNEL, DOMAIN_MANAGER);
+	preempt_enable_no_resched();
+#endif
+	return 0;
+}
+#else
+static inline unsigned long pax_open_kernel(void) { return 0; }
+static inline unsigned long pax_close_kernel(void) { return 0; }
+#endif
+
 /*
  * This is the lowest virtual address we can permit any user space
  * mapping to be mapped at.  This is particularly important for
@@ -72,8 +122,8 @@ extern void __pgd_error(const char *file, int line, pgd_t);
 /*
  * The pgprot_* and protection_map entries will be fixed up in runtime
  * to include the cachable and bufferable bits based on memory policy,
- * as well as any architecture dependent bits like global/ASID and SMP
- * shared mapping bits.
+ * as well as any architecture dependent bits like global/ASID, PXN,
+ * and SMP shared mapping bits.
  */
 #define _L_PTE_DEFAULT	L_PTE_PRESENT | L_PTE_YOUNG
 
@@ -257,7 +307,7 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 {
 	const pteval_t mask = L_PTE_XN | L_PTE_RDONLY | L_PTE_USER |
-		L_PTE_NONE | L_PTE_VALID;
+		L_PTE_NONE | L_PTE_VALID | __supported_pte_mask;
 	pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
 	return pte;
 }
diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h
index f3628fb..a0672dd 100644
--- a/arch/arm/include/asm/proc-fns.h
+++ b/arch/arm/include/asm/proc-fns.h
@@ -75,7 +75,7 @@ extern struct processor {
 	unsigned int suspend_size;
 	void (*do_suspend)(void *);
 	void (*do_resume)(void *);
-} processor;
+} __do_const processor;
 
 #ifndef MULTI_CPU
 extern void cpu_proc_init(void);
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 06e7d50..8a8e251 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -65,9 +65,8 @@ struct thread_struct {
 	regs->ARM_cpsr |= PSR_ENDSTATE;					\
 	regs->ARM_pc = pc & ~1;		/* pc */			\
 	regs->ARM_sp = sp;		/* sp */			\
-	regs->ARM_r2 = stack[2];	/* r2 (envp) */			\
-	regs->ARM_r1 = stack[1];	/* r1 (argv) */			\
-	regs->ARM_r0 = stack[0];	/* r0 (argc) */			\
+	/* r2 (envp), r1 (argv), r0 (argc) */				\
+	(void)copy_from_user(&regs->ARM_r0, (const char __user *)stack, 3 * sizeof(unsigned long)); \
 	nommu_start_thread(regs);					\
 })
 
diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h
index ce0dbe7..c085b6f 100644
--- a/arch/arm/include/asm/psci.h
+++ b/arch/arm/include/asm/psci.h
@@ -29,7 +29,7 @@ struct psci_operations {
 	int (*cpu_off)(struct psci_power_state state);
 	int (*cpu_on)(unsigned long cpuid, unsigned long entry_point);
 	int (*migrate)(unsigned long cpuid);
-};
+} __no_const;
 
 extern struct psci_operations psci_ops;
 
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index d3a22be..3a69ad5 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -107,7 +107,7 @@ struct smp_operations {
 	int  (*cpu_disable)(unsigned int cpu);
 #endif
 #endif
-};
+} __no_const;
 
 /*
  * set platform specific SMP operations
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index cddda1f..ff357f7 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -77,9 +77,9 @@ struct thread_info {
 	.flags		= 0,						\
 	.preempt_count	= INIT_PREEMPT_COUNT,				\
 	.addr_limit	= KERNEL_DS,					\
-	.cpu_domain	= domain_val(DOMAIN_USER, DOMAIN_MANAGER) |	\
-			  domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) |	\
-			  domain_val(DOMAIN_IO, DOMAIN_CLIENT),		\
+	.cpu_domain	= domain_val(DOMAIN_USER, DOMAIN_USERCLIENT) |	\
+			  domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT) |	\
+			  domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT),	\
 	.restart_block	= {						\
 		.fn	= do_no_restart_syscall,			\
 	},								\
@@ -152,6 +152,12 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define TIF_SYSCALL_AUDIT	9
 #define TIF_SYSCALL_TRACEPOINT	10
 #define TIF_SECCOMP		11	/* seccomp syscall filtering active */
+
+/* within 8 bits of TIF_SYSCALL_TRACE
+ *  to meet flexible second operand requirements
+ */
+#define TIF_GRSEC_SETXID	12
+
 #define TIF_USING_IWMMXT	17
 #define TIF_MEMDIE		18	/* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK	20
@@ -165,10 +171,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
 #define _TIF_SECCOMP		(1 << TIF_SECCOMP)
 #define _TIF_USING_IWMMXT	(1 << TIF_USING_IWMMXT)
+#define _TIF_GRSEC_SETXID	(1 << TIF_GRSEC_SETXID)
 
 /* Checks for any syscall work in entry-common.S */
 #define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
-			   _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
+			   _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | _TIF_GRSEC_SETXID)
 
 /*
  * Change these and you break ASM code in entry-common.S
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 7e1f760..752fcb7 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -18,6 +18,7 @@
 #include <asm/domain.h>
 #include <asm/unified.h>
 #include <asm/compiler.h>
+#include <asm/pgtable.h>
 
 #define VERIFY_READ 0
 #define VERIFY_WRITE 1
@@ -60,10 +61,34 @@ extern int __put_user_bad(void);
 #define USER_DS		TASK_SIZE
 #define get_fs()	(current_thread_info()->addr_limit)
 
+static inline void pax_open_userland(void)
+{
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (get_fs() == USER_DS) {
+		BUG_ON(test_domain(DOMAIN_USER, DOMAIN_UDEREF));
+		modify_domain(DOMAIN_USER, DOMAIN_UDEREF);
+	}
+#endif
+
+}
+
+static inline void pax_close_userland(void)
+{
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (get_fs() == USER_DS) {
+		BUG_ON(test_domain(DOMAIN_USER, DOMAIN_NOACCESS));
+		modify_domain(DOMAIN_USER, DOMAIN_NOACCESS);
+	}
+#endif
+
+}
+
 static inline void set_fs(mm_segment_t fs)
 {
 	current_thread_info()->addr_limit = fs;
-	modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_CLIENT : DOMAIN_MANAGER);
+	modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_KERNELCLIENT : DOMAIN_MANAGER);
 }
 
 #define segment_eq(a,b)	((a) == (b))
@@ -143,8 +168,12 @@ extern int __get_user_4(void *);
 
 #define get_user(x,p)							\
 	({								\
+		int __e;						\
 		might_fault();						\
-		__get_user_check(x,p);					\
+		pax_open_userland();					\
+		__e = __get_user_check(x,p);				\
+		pax_close_userland();					\
+		__e;							\
 	 })
 
 extern int __put_user_1(void *, unsigned int);
@@ -188,8 +217,12 @@ extern int __put_user_8(void *, unsigned long long);
 
 #define put_user(x,p)							\
 	({								\
+		int __e;						\
 		might_fault();						\
-		__put_user_check(x,p);					\
+		pax_open_userland();					\
+		__e = __put_user_check(x,p);				\
+		pax_close_userland();					\
+		__e;							\
 	 })
 
 #else /* CONFIG_MMU */
@@ -230,13 +263,17 @@ static inline void set_fs(mm_segment_t fs)
 #define __get_user(x,ptr)						\
 ({									\
 	long __gu_err = 0;						\
+	pax_open_userland();						\
 	__get_user_err((x),(ptr),__gu_err);				\
+	pax_close_userland();						\
 	__gu_err;							\
 })
 
 #define __get_user_error(x,ptr,err)					\
 ({									\
+	pax_open_userland();						\
 	__get_user_err((x),(ptr),err);					\
+	pax_close_userland();						\
 	(void) 0;							\
 })
 
@@ -312,13 +349,17 @@ do {									\
 #define __put_user(x,ptr)						\
 ({									\
 	long __pu_err = 0;						\
+	pax_open_userland();						\
 	__put_user_err((x),(ptr),__pu_err);				\
+	pax_close_userland();						\
 	__pu_err;							\
 })
 
 #define __put_user_error(x,ptr,err)					\
 ({									\
+	pax_open_userland();						\
 	__put_user_err((x),(ptr),err);					\
+	pax_close_userland();						\
 	(void) 0;							\
 })
 
@@ -418,11 +459,44 @@ do {									\
 
 
 #ifdef CONFIG_MMU
-extern unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n);
-extern unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n);
+extern unsigned long __must_check ___copy_from_user(void *to, const void __user *from, unsigned long n);
+extern unsigned long __must_check ___copy_to_user(void __user *to, const void *from, unsigned long n);
+
+static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+	unsigned long ret;
+
+	check_object_size(to, n, false);
+	pax_open_userland();
+	ret = ___copy_from_user(to, from, n);
+	pax_close_userland();
+	return ret;
+}
+
+static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+	unsigned long ret;
+
+	check_object_size(from, n, true);
+	pax_open_userland();
+	ret = ___copy_to_user(to, from, n);
+	pax_close_userland();
+	return ret;
+}
+
 extern unsigned long __must_check __copy_to_user_std(void __user *to, const void *from, unsigned long n);
-extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n);
+extern unsigned long __must_check ___clear_user(void __user *addr, unsigned long n);
 extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned long n);
+
+static inline unsigned long __must_check __clear_user(void __user *addr, unsigned long n)
+{
+	unsigned long ret;
+	pax_open_userland();
+	ret = ___clear_user(addr, n);
+	pax_close_userland();
+	return ret;
+}
+
 #else
 #define __copy_from_user(to,from,n)	(memcpy(to, (void __force *)from, n), 0)
 #define __copy_to_user(to,from,n)	(memcpy((void __force *)to, from, n), 0)
@@ -431,6 +505,9 @@ extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned l
 
 static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	if (access_ok(VERIFY_READ, from, n))
 		n = __copy_from_user(to, from, n);
 	else /* security hole - plug it */
@@ -440,6 +517,9 @@ static inline unsigned long __must_check copy_from_user(void *to, const void __u
 
 static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	if (access_ok(VERIFY_WRITE, to, n))
 		n = __copy_to_user(to, from, n);
 	return n;
diff --git a/arch/arm/include/uapi/asm/ptrace.h b/arch/arm/include/uapi/asm/ptrace.h
index 96ee092..37f1844 100644
--- a/arch/arm/include/uapi/asm/ptrace.h
+++ b/arch/arm/include/uapi/asm/ptrace.h
@@ -73,7 +73,7 @@
  * ARMv7 groups of PSR bits
  */
 #define APSR_MASK	0xf80f0000	/* N, Z, C, V, Q and GE flags */
-#define PSR_ISET_MASK	0x01000010	/* ISA state (J, T) mask */
+#define PSR_ISET_MASK	0x01000020	/* ISA state (J, T) mask */
 #define PSR_IT_MASK	0x0600fc00	/* If-Then execution state mask */
 #define PSR_ENDIAN_MASK	0x00000200	/* Endianness state mask */
 
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index 60d3b73..d27ee09 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -89,9 +89,9 @@ EXPORT_SYMBOL(__memzero);
 #ifdef CONFIG_MMU
 EXPORT_SYMBOL(copy_page);
 
-EXPORT_SYMBOL(__copy_from_user);
-EXPORT_SYMBOL(__copy_to_user);
-EXPORT_SYMBOL(__clear_user);
+EXPORT_SYMBOL(___copy_from_user);
+EXPORT_SYMBOL(___copy_to_user);
+EXPORT_SYMBOL(___clear_user);
 
 EXPORT_SYMBOL(__get_user_1);
 EXPORT_SYMBOL(__get_user_2);
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 0f82098..3dbd3ee 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -47,6 +47,87 @@
 9997:
 	.endm
 
+	.macro	pax_enter_kernel
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	@ make aligned space for saved DACR
+	sub	sp, sp, #8
+	@ save regs
+	stmdb	sp!, {r1, r2}
+	@ read DACR from cpu_domain into r1
+	mov	r2, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic	r2, r2, #(0x1fc0)
+	bic	r2, r2, #(0x3f)
+	ldr	r1, [r2, #TI_CPU_DOMAIN]
+	@ store old DACR on stack 
+	str	r1, [sp, #8]
+#ifdef CONFIG_PAX_KERNEXEC
+	@ set type of DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
+	bic	r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
+	orr	r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
+#endif
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	@ set current DOMAIN_USER to DOMAIN_NOACCESS
+	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
+#endif
+	@ write r1 to current_thread_info()->cpu_domain
+	str	r1, [r2, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr	p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r1, r2}
+#endif
+	.endm
+
+	.macro	pax_open_userland
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	@ save regs
+	stmdb	sp!, {r0, r1}
+	@ read DACR from cpu_domain into r1
+	mov	r0, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic	r0, r0, #(0x1fc0)
+	bic	r0, r0, #(0x3f)
+	ldr	r1, [r0, #TI_CPU_DOMAIN]
+	@ set current DOMAIN_USER to DOMAIN_CLIENT
+	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
+	orr	r1, r1, #(domain_val(DOMAIN_USER, DOMAIN_UDEREF))
+	@ write r1 to current_thread_info()->cpu_domain
+	str	r1, [r0, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr	p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r0, r1}
+#endif
+	.endm
+
+	.macro	pax_close_userland
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	@ save regs
+	stmdb	sp!, {r0, r1}
+	@ read DACR from cpu_domain into r1
+	mov	r0, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic	r0, r0, #(0x1fc0)
+	bic	r0, r0, #(0x3f)
+	ldr	r1, [r0, #TI_CPU_DOMAIN]
+	@ set current DOMAIN_USER to DOMAIN_NOACCESS
+	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
+	@ write r1 to current_thread_info()->cpu_domain
+	str	r1, [r0, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr	p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r0, r1}
+#endif
+	.endm
+
 	.macro	pabt_helper
 	@ PABORT handler takes pt_regs in r2, fault address in r4 and psr in r5
 #ifdef MULTI_PABORT
@@ -89,11 +170,15 @@
  * Invalid mode handlers
  */
 	.macro	inv_entry, reason
+
+	pax_enter_kernel
+
 	sub	sp, sp, #S_FRAME_SIZE
  ARM(	stmib	sp, {r1 - lr}		)
  THUMB(	stmia	sp, {r0 - r12}		)
  THUMB(	str	sp, [sp, #S_SP]		)
  THUMB(	str	lr, [sp, #S_LR]		)
+
 	mov	r1, #\reason
 	.endm
 
@@ -149,7 +234,11 @@ ENDPROC(__und_invalid)
 	.macro	svc_entry, stack_hole=0
  UNWIND(.fnstart		)
  UNWIND(.save {r0 - pc}		)
+
+	pax_enter_kernel
+
 	sub	sp, sp, #(S_FRAME_SIZE + \stack_hole - 4)
+
 #ifdef CONFIG_THUMB2_KERNEL
  SPFIX(	str	r0, [sp]	)	@ temporarily saved
  SPFIX(	mov	r0, sp		)
@@ -164,7 +253,12 @@ ENDPROC(__und_invalid)
 	ldmia	r0, {r3 - r5}
 	add	r7, sp, #S_SP - 4	@ here for interlock avoidance
 	mov	r6, #-1			@  ""  ""      ""       ""
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	@ offset sp by 8 as done in pax_enter_kernel
+	add	r2, sp, #(S_FRAME_SIZE + \stack_hole + 4)
+#else
 	add	r2, sp, #(S_FRAME_SIZE + \stack_hole - 4)
+#endif
  SPFIX(	addeq	r2, r2, #4	)
 	str	r3, [sp, #-4]!		@ save the "real" r0 copied
 					@ from the exception stack
@@ -359,6 +453,9 @@ ENDPROC(__pabt_svc)
 	.macro	usr_entry
  UNWIND(.fnstart	)
  UNWIND(.cantunwind	)	@ don't unwind the user space
+
+	pax_enter_kernel_user
+
 	sub	sp, sp, #S_FRAME_SIZE
  ARM(	stmib	sp, {r1 - r12}	)
  THUMB(	stmia	sp, {r0 - r12}	)
@@ -456,7 +553,9 @@ __und_usr:
 	tst	r3, #PSR_T_BIT			@ Thumb mode?
 	bne	__und_usr_thumb
 	sub	r4, r2, #4			@ ARM instr at LR - 4
+	pax_open_userland
 1:	ldrt	r0, [r4]
+	pax_close_userland
 #ifdef CONFIG_CPU_ENDIAN_BE8
 	rev	r0, r0				@ little endian instruction
 #endif
@@ -491,10 +590,14 @@ __und_usr_thumb:
  */
 	.arch	armv6t2
 #endif
+	pax_open_userland
 2:	ldrht	r5, [r4]
+	pax_close_userland
 	cmp	r5, #0xe800			@ 32bit instruction if xx != 0
 	blo	__und_usr_fault_16		@ 16bit undefined instruction
+	pax_open_userland
 3:	ldrht	r0, [r2]
+	pax_close_userland
 	add	r2, r2, #2			@ r2 is PC + 2, make it PC + 4
 	str	r2, [sp, #S_PC]			@ it's a 2x16bit instr, update
 	orr	r0, r0, r5, lsl #16
@@ -733,7 +836,7 @@ ENTRY(__switch_to)
  THUMB(	stmia	ip!, {r4 - sl, fp}	   )	@ Store most regs on stack
  THUMB(	str	sp, [ip], #4		   )
  THUMB(	str	lr, [ip], #4		   )
-#ifdef CONFIG_CPU_USE_DOMAINS
+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC)
 	ldr	r6, [r2, #TI_CPU_DOMAIN]
 #endif
 	set_tls	r3, r4, r5
@@ -742,7 +845,7 @@ ENTRY(__switch_to)
 	ldr	r8, =__stack_chk_guard
 	ldr	r7, [r7, #TSK_STACK_CANARY]
 #endif
-#ifdef CONFIG_CPU_USE_DOMAINS
+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC)
 	mcr	p15, 0, r6, c3, c0, 0		@ Set domain register
 #endif
 	mov	r5, r0
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index fefd7f9..e6f250e 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -10,18 +10,46 @@
 
 #include <asm/unistd.h>
 #include <asm/ftrace.h>
+#include <asm/domain.h>
 #include <asm/unwind.h>
 
+#include "entry-header.S"
+
 #ifdef CONFIG_NEED_RET_TO_USER
 #include <mach/entry-macro.S>
 #else
 	.macro  arch_ret_to_user, tmp1, tmp2
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	@ save regs
+	stmdb	sp!, {r1, r2}
+        @ read DACR from cpu_domain into r1
+        mov     r2, sp
+        @ assume 8K pages, since we have to split the immediate in two
+        bic     r2, r2, #(0x1fc0)
+        bic     r2, r2, #(0x3f)
+        ldr     r1, [r2, #TI_CPU_DOMAIN]
+#ifdef CONFIG_PAX_KERNEXEC
+        @ set type of DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
+        bic     r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
+        orr     r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
+#endif
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+        @ set current DOMAIN_USER to DOMAIN_UDEREF
+        bic     r1, r1, #(domain_val(DOMAIN_USER, 3))
+        orr     r1, r1, #(domain_val(DOMAIN_USER, DOMAIN_UDEREF))
+#endif
+        @ write r1 to current_thread_info()->cpu_domain
+        str     r1, [r2, #TI_CPU_DOMAIN]
+        @ write r1 to DACR
+        mcr     p15, 0, r1, c3, c0, 0
+        @ instruction sync
+        instr_sync
+	@ restore regs
+	ldmia	sp!, {r1, r2}
+#endif
 	.endm
 #endif
 
-#include "entry-header.S"
-
-
 	.align	5
 /*
  * This is the fast syscall return path.  We do as little as
@@ -351,6 +379,7 @@ ENDPROC(ftrace_stub)
 
 	.align	5
 ENTRY(vector_swi)
+
 	sub	sp, sp, #S_FRAME_SIZE
 	stmia	sp, {r0 - r12}			@ Calling r0 - r12
  ARM(	add	r8, sp, #S_PC		)
@@ -400,6 +429,12 @@ ENTRY(vector_swi)
 	ldr	scno, [lr, #-4]			@ get SWI instruction
 #endif
 
+	/*
+	 * do this here to avoid a performance hit of wrapping the code above
+	 * that directly dereferences userland to parse the SWI instruction
+	 */
+	pax_enter_kernel_user
+
 #ifdef CONFIG_ALIGNMENT_TRAP
 	ldr	ip, __cr_alignment
 	ldr	ip, [ip]
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 9a8531e..812e287 100644
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -73,9 +73,66 @@
 	msr	cpsr_c, \rtemp			@ switch back to the SVC mode
 	.endm
 
+	.macro	pax_enter_kernel_user
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	@ save regs
+	stmdb	sp!, {r0, r1}
+	@ read DACR from cpu_domain into r1
+	mov	r0, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic	r0, r0, #(0x1fc0)
+	bic	r0, r0, #(0x3f)
+	ldr	r1, [r0, #TI_CPU_DOMAIN]
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	@ set current DOMAIN_USER to DOMAIN_NOACCESS
+	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
+#endif
+#ifdef CONFIG_PAX_KERNEXEC
+	@ set current DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
+	bic	r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
+	orr	r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
+#endif
+	@ write r1 to current_thread_info()->cpu_domain
+	str	r1, [r0, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr	p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r0, r1}
+#endif
+	.endm
+
+	.macro  pax_exit_kernel
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	@ save regs
+	stmdb	sp!, {r0, r1}
+	@ read old DACR from stack into r1
+	ldr	r1, [sp, #(8 + S_SP)]
+	sub	r1, r1, #8
+	ldr	r1, [r1]
+
+	@ write r1 to current_thread_info()->cpu_domain
+	mov	r0, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic	r0, r0, #(0x1fc0)
+	bic	r0, r0, #(0x3f)
+	str	r1, [r0, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr	p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r0, r1}
+#endif
+	.endm
+
 #ifndef CONFIG_THUMB2_KERNEL
 	.macro	svc_exit, rpsr
 	msr	spsr_cxsf, \rpsr
+
+	pax_exit_kernel
+
 #if defined(CONFIG_CPU_V6)
 	ldr	r0, [sp]
 	strex	r1, r2, [sp]			@ clear the exclusive monitor
@@ -121,6 +178,9 @@
 	.endm
 #else	/* CONFIG_THUMB2_KERNEL */
 	.macro	svc_exit, rpsr
+
+	pax_exit_kernel
+
 	ldr	lr, [sp, #S_SP]			@ top of the stack
 	ldrd	r0, r1, [sp, #S_LR]		@ calling lr and pc
 	clrex					@ clear the exclusive monitor
diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
index 2adda11..7fbe958 100644
--- a/arch/arm/kernel/fiq.c
+++ b/arch/arm/kernel/fiq.c
@@ -82,7 +82,9 @@ void set_fiq_handler(void *start, unsigned int length)
 #if defined(CONFIG_CPU_USE_DOMAINS)
 	memcpy((void *)0xffff001c, start, length);
 #else
+	pax_open_kernel();
 	memcpy(vectors_page + 0x1c, start, length);
+	pax_close_kernel();
 #endif
 	flush_icache_range(0xffff001c, 0xffff001c + length);
 	if (!vectors_high())
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 8bac553..caee108 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -52,7 +52,9 @@
 	.equ	swapper_pg_dir, KERNEL_RAM_VADDR - PG_DIR_SIZE
 
 	.macro	pgtbl, rd, phys
-	add	\rd, \phys, #TEXT_OFFSET - PG_DIR_SIZE
+	mov	\rd, #TEXT_OFFSET
+	sub	\rd, #PG_DIR_SIZE
+	add	\rd, \rd, \phys
 	.endm
 
 /*
@@ -434,7 +436,7 @@ __enable_mmu:
 	mov	r5, #(domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \
 		      domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
 		      domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \
-		      domain_val(DOMAIN_IO, DOMAIN_CLIENT))
+		      domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT))
 	mcr	p15, 0, r5, c3, c0, 0		@ load domain access register
 	mcr	p15, 0, r4, c2, c0, 0		@ load page table pointer
 #endif
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
index 1fd749e..47adb08 100644
--- a/arch/arm/kernel/hw_breakpoint.c
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -1029,7 +1029,7 @@ static int __cpuinit dbg_reset_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata dbg_reset_nb = {
+static struct notifier_block dbg_reset_nb = {
 	.notifier_call = dbg_reset_notify,
 };
 
diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 1e9be5d..03edbc2 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -37,12 +37,37 @@
 #endif
 
 #ifdef CONFIG_MMU
-void *module_alloc(unsigned long size)
+static inline void *__module_alloc(unsigned long size, pgprot_t prot)
 {
+	if (!size || PAGE_ALIGN(size) > MODULES_END - MODULES_VADDR)
+		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
+				GFP_KERNEL, prot, -1,
 				__builtin_return_address(0));
 }
+
+void *module_alloc(unsigned long size)
+{
+
+#ifdef CONFIG_PAX_KERNEXEC
+	return __module_alloc(size, PAGE_KERNEL);
+#else
+	return __module_alloc(size, PAGE_KERNEL_EXEC);
+#endif
+
+}
+
+#ifdef CONFIG_PAX_KERNEXEC
+void module_free_exec(struct module *mod, void *module_region)
+{
+	module_free(mod, module_region);
+}
+
+void *module_alloc_exec(unsigned long size)
+{
+	return __module_alloc(size, PAGE_KERNEL_EXEC);
+}
+#endif
 #endif
 
 int
diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
index 07314af..c46655c 100644
--- a/arch/arm/kernel/patch.c
+++ b/arch/arm/kernel/patch.c
@@ -18,6 +18,7 @@ void __kprobes __patch_text(void *addr, unsigned int insn)
 	bool thumb2 = IS_ENABLED(CONFIG_THUMB2_KERNEL);
 	int size;
 
+	pax_open_kernel();
 	if (thumb2 && __opcode_is_thumb16(insn)) {
 		*(u16 *)addr = __opcode_to_mem_thumb16(insn);
 		size = sizeof(u16);
@@ -39,6 +40,7 @@ void __kprobes __patch_text(void *addr, unsigned int insn)
 		*(u32 *)addr = insn;
 		size = sizeof(u32);
 	}
+	pax_close_kernel();
 
 	flush_icache_range((uintptr_t)(addr),
 			   (uintptr_t)(addr) + size);
diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c
index 1f2740e..b36e225 100644
--- a/arch/arm/kernel/perf_event_cpu.c
+++ b/arch/arm/kernel/perf_event_cpu.c
@@ -171,7 +171,7 @@ static int __cpuinit cpu_pmu_notify(struct notifier_block *b,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata cpu_pmu_hotplug_notifier = {
+static struct notifier_block cpu_pmu_hotplug_notifier = {
 	.notifier_call = cpu_pmu_notify,
 };
 
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 047d3e4..7e96107 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -28,7 +28,6 @@
 #include <linux/tick.h>
 #include <linux/utsname.h>
 #include <linux/uaccess.h>
-#include <linux/random.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/cpuidle.h>
 #include <linux/leds.h>
@@ -251,9 +250,10 @@ void machine_power_off(void)
 	machine_shutdown();
 	if (pm_power_off)
 		pm_power_off();
+	BUG();
 }
 
-void machine_restart(char *cmd)
+__noreturn void machine_restart(char *cmd)
 {
 	machine_shutdown();
 
@@ -278,8 +278,8 @@ void __show_regs(struct pt_regs *regs)
 		init_utsname()->release,
 		(int)strcspn(init_utsname()->version, " "),
 		init_utsname()->version);
-	print_symbol("PC is at %s\n", instruction_pointer(regs));
-	print_symbol("LR is at %s\n", regs->ARM_lr);
+	printk("PC is at %pA\n", instruction_pointer(regs));
+	printk("LR is at %pA\n", regs->ARM_lr);
 	printk("pc : [<%08lx>]    lr : [<%08lx>]    psr: %08lx\n"
 	       "sp : %08lx  ip : %08lx  fp : %08lx\n",
 		regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr,
@@ -447,12 +447,6 @@ unsigned long get_wchan(struct task_struct *p)
 	return 0;
 }
 
-unsigned long arch_randomize_brk(struct mm_struct *mm)
-{
-	unsigned long range_end = mm->brk + 0x02000000;
-	return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
-}
-
 #ifdef CONFIG_MMU
 /*
  * The vectors page is always readable from user space for the
@@ -465,9 +459,8 @@ static int __init gate_vma_init(void)
 {
 	gate_vma.vm_start	= 0xffff0000;
 	gate_vma.vm_end		= 0xffff0000 + PAGE_SIZE;
-	gate_vma.vm_page_prot	= PAGE_READONLY_EXEC;
-	gate_vma.vm_flags	= VM_READ | VM_EXEC |
-				  VM_MAYREAD | VM_MAYEXEC;
+	gate_vma.vm_flags	= VM_NONE;
+	gate_vma.vm_page_prot	= vm_get_page_prot(gate_vma.vm_flags);
 	return 0;
 }
 arch_initcall(gate_vma_init);
diff --git a/arch/arm/kernel/psci.c b/arch/arm/kernel/psci.c
index 3653164..d83e55d 100644
--- a/arch/arm/kernel/psci.c
+++ b/arch/arm/kernel/psci.c
@@ -24,7 +24,7 @@
 #include <asm/opcodes-virt.h>
 #include <asm/psci.h>
 
-struct psci_operations psci_ops;
+struct psci_operations psci_ops __read_only;
 
 static int (*invoke_psci_fn)(u32, u32, u32, u32);
 
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 03deeff..741ce88 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -937,10 +937,19 @@ static int tracehook_report_syscall(struct pt_regs *regs,
 	return current_thread_info()->syscall;
 }
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern void gr_delayed_cred_worker(void);
+#endif
+
 asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno)
 {
 	current_thread_info()->syscall = scno;
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	/* Do the secure computing check first; failures should be fast. */
 	if (secure_computing(scno) == -1)
 		return -1;
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 234e339..81264a1 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -96,21 +96,23 @@ EXPORT_SYMBOL(system_serial_high);
 unsigned int elf_hwcap __read_mostly;
 EXPORT_SYMBOL(elf_hwcap);
 
+pteval_t __supported_pte_mask __read_only;
+pmdval_t __supported_pmd_mask __read_only;
 
 #ifdef MULTI_CPU
-struct processor processor __read_mostly;
+struct processor processor;
 #endif
 #ifdef MULTI_TLB
-struct cpu_tlb_fns cpu_tlb __read_mostly;
+struct cpu_tlb_fns cpu_tlb __read_only;
 #endif
 #ifdef MULTI_USER
-struct cpu_user_fns cpu_user __read_mostly;
+struct cpu_user_fns cpu_user __read_only;
 #endif
 #ifdef MULTI_CACHE
-struct cpu_cache_fns cpu_cache __read_mostly;
+struct cpu_cache_fns cpu_cache __read_only;
 #endif
 #ifdef CONFIG_OUTER_CACHE
-struct outer_cache_fns outer_cache __read_mostly;
+struct outer_cache_fns outer_cache __read_only;
 EXPORT_SYMBOL(outer_cache);
 #endif
 
@@ -235,9 +237,13 @@ static int __get_cpu_architecture(void)
 		asm("mrc	p15, 0, %0, c0, c1, 4"
 		    : "=r" (mmfr0));
 		if ((mmfr0 & 0x0000000f) >= 0x00000003 ||
-		    (mmfr0 & 0x000000f0) >= 0x00000030)
+		    (mmfr0 & 0x000000f0) >= 0x00000030) {
 			cpu_arch = CPU_ARCH_ARMv7;
-		else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
+			if ((mmfr0 & 0x0000000f) == 0x00000005 || (mmfr0 & 0x0000000f) == 0x00000004) {
+				__supported_pte_mask |= L_PTE_PXN;
+				__supported_pmd_mask |= PMD_PXNTABLE;
+			}
+		} else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
 			 (mmfr0 & 0x000000f0) == 0x00000020)
 			cpu_arch = CPU_ARCH_ARMv6;
 		else
@@ -478,7 +484,7 @@ static void __init setup_processor(void)
 	__cpu_architecture = __get_cpu_architecture();
 
 #ifdef MULTI_CPU
-	processor = *list->proc;
+	memcpy((void *)&processor, list->proc, sizeof processor);
 #endif
 #ifdef MULTI_TLB
 	cpu_tlb = *list->tlb;
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 296786b..a8d4dd5 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -396,22 +396,14 @@ setup_return(struct pt_regs *regs, struct ksignal *ksig,
 		    __put_user(sigreturn_codes[idx+1], rc+1))
 			return 1;
 
-		if (cpsr & MODE32_BIT) {
-			/*
-			 * 32-bit code can use the new high-page
-			 * signal return code support.
-			 */
-			retcode = KERN_SIGRETURN_CODE + (idx << 2) + thumb;
-		} else {
-			/*
-			 * Ensure that the instruction cache sees
-			 * the return code written onto the stack.
-			 */
-			flush_icache_range((unsigned long)rc,
-					   (unsigned long)(rc + 2));
+		/*
+		 * Ensure that the instruction cache sees
+		 * the return code written onto the stack.
+		 */
+		flush_icache_range((unsigned long)rc,
+				   (unsigned long)(rc + 2));
 
-			retcode = ((unsigned long)rc) + thumb;
-		}
+		retcode = ((unsigned long)rc) + thumb;
 	}
 
 	regs->ARM_r0 = map_sig(ksig->sig);
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 1f2cccc..f40c02e 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -70,7 +70,7 @@ enum ipi_msg_type {
 
 static DECLARE_COMPLETION(cpu_running);
 
-static struct smp_operations smp_ops;
+static struct smp_operations smp_ops __read_only;
 
 void __init smp_set_ops(struct smp_operations *ops)
 {
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 1c08911..264f009 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -57,7 +57,7 @@ static void dump_mem(const char *, const char *, unsigned long, unsigned long);
 void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame)
 {
 #ifdef CONFIG_KALLSYMS
-	printk("[<%08lx>] (%pS) from [<%08lx>] (%pS)\n", where, (void *)where, from, (void *)from);
+	printk("[<%08lx>] (%pA) from [<%08lx>] (%pA)\n", where, (void *)where, from, (void *)from);
 #else
 	printk("Function entered at [<%08lx>] from [<%08lx>]\n", where, from);
 #endif
@@ -266,6 +266,8 @@ static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
 static int die_owner = -1;
 static unsigned int die_nest_count;
 
+extern void gr_handle_kernel_exploit(void);
+
 static unsigned long oops_begin(void)
 {
 	int cpu;
@@ -308,6 +310,9 @@ static void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 		panic("Fatal exception in interrupt");
 	if (panic_on_oops)
 		panic("Fatal exception");
+
+	gr_handle_kernel_exploit();
+
 	if (signr)
 		do_exit(signr);
 }
@@ -601,7 +606,9 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
 			 * The user helper at 0xffff0fe0 must be used instead.
 			 * (see entry-armv.S for details)
 			 */
+			pax_open_kernel();
 			*((unsigned int *)0xffff0ff0) = regs->ARM_r0;
+			pax_close_kernel();
 		}
 		return 0;
 
@@ -841,13 +848,10 @@ void __init early_trap_init(void *vectors_base)
 	 */
 	kuser_get_tls_init(vectors);
 
-	/*
-	 * Copy signal return handlers into the vector page, and
-	 * set sigreturn to be a pointer to these.
-	 */
-	memcpy((void *)(vectors + KERN_SIGRETURN_CODE - CONFIG_VECTORS_BASE),
-	       sigreturn_codes, sizeof(sigreturn_codes));
-
 	flush_icache_range(vectors, vectors + PAGE_SIZE);
-	modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
+
+#ifndef CONFIG_PAX_MEMORY_UDEREF
+	modify_domain(DOMAIN_USER, DOMAIN_USERCLIENT);
+#endif
+
 }
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index b571484..4b2fc9b 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -8,7 +8,11 @@
 #include <asm/thread_info.h>
 #include <asm/memory.h>
 #include <asm/page.h>
-	
+
+#ifdef CONFIG_PAX_KERNEXEC
+#include <asm/pgtable.h>
+#endif
+
 #define PROC_INFO							\
 	. = ALIGN(4);							\
 	VMLINUX_SYMBOL(__proc_info_begin) = .;				\
@@ -94,6 +98,11 @@ SECTIONS
 		_text = .;
 		HEAD_TEXT
 	}
+
+#ifdef CONFIG_PAX_KERNEXEC
+	. = ALIGN(1<<SECTION_SHIFT);
+#endif
+
 	.text : {			/* Real text segment		*/
 		_stext = .;		/* Text and read-only data	*/
 			__exception_text_start = .;
@@ -116,6 +125,8 @@ SECTIONS
 			ARM_CPU_KEEP(PROC_INFO)
 	}
 
+	_etext = .;			/* End of text section */
+
 	RO_DATA(PAGE_SIZE)
 
 	. = ALIGN(4);
@@ -146,7 +157,9 @@ SECTIONS
 
 	NOTES
 
-	_etext = .;			/* End of text and rodata section */
+#ifdef CONFIG_PAX_KERNEXEC
+	. = ALIGN(1<<SECTION_SHIFT);
+#endif
 
 #ifndef CONFIG_XIP_KERNEL
 	. = ALIGN(PAGE_SIZE);
@@ -207,6 +220,11 @@ SECTIONS
 	. = PAGE_OFFSET + TEXT_OFFSET;
 #else
 	__init_end = .;
+
+#ifdef CONFIG_PAX_KERNEXEC
+	. = ALIGN(1<<SECTION_SHIFT);
+#endif
+
 	. = ALIGN(THREAD_SIZE);
 	__data_loc = .;
 #endif
diff --git a/arch/arm/lib/clear_user.S b/arch/arm/lib/clear_user.S
index 14a0d98..7771a7d 100644
--- a/arch/arm/lib/clear_user.S
+++ b/arch/arm/lib/clear_user.S
@@ -12,14 +12,14 @@
 
 		.text
 
-/* Prototype: int __clear_user(void *addr, size_t sz)
+/* Prototype: int ___clear_user(void *addr, size_t sz)
  * Purpose  : clear some user memory
  * Params   : addr - user memory address to clear
  *          : sz   - number of bytes to clear
  * Returns  : number of bytes NOT cleared
  */
 ENTRY(__clear_user_std)
-WEAK(__clear_user)
+WEAK(___clear_user)
 		stmfd	sp!, {r1, lr}
 		mov	r2, #0
 		cmp	r1, #4
@@ -44,7 +44,7 @@ WEAK(__clear_user)
 USER(		strnebt	r2, [r0])
 		mov	r0, #0
 		ldmfd	sp!, {r1, pc}
-ENDPROC(__clear_user)
+ENDPROC(___clear_user)
 ENDPROC(__clear_user_std)
 
 		.pushsection .fixup,"ax"
diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
index 66a477a..bee61d3 100644
--- a/arch/arm/lib/copy_from_user.S
+++ b/arch/arm/lib/copy_from_user.S
@@ -16,7 +16,7 @@
 /*
  * Prototype:
  *
- *	size_t __copy_from_user(void *to, const void *from, size_t n)
+ *	size_t ___copy_from_user(void *to, const void *from, size_t n)
  *
  * Purpose:
  *
@@ -84,11 +84,11 @@
 
 	.text
 
-ENTRY(__copy_from_user)
+ENTRY(___copy_from_user)
 
 #include "copy_template.S"
 
-ENDPROC(__copy_from_user)
+ENDPROC(___copy_from_user)
 
 	.pushsection .fixup,"ax"
 	.align 0
diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S
index 6ee2f67..d1cce76 100644
--- a/arch/arm/lib/copy_page.S
+++ b/arch/arm/lib/copy_page.S
@@ -10,6 +10,7 @@
  *  ASM optimised string functions
  */
 #include <linux/linkage.h>
+#include <linux/const.h>
 #include <asm/assembler.h>
 #include <asm/asm-offsets.h>
 #include <asm/cache.h>
diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S
index d066df6..df28194 100644
--- a/arch/arm/lib/copy_to_user.S
+++ b/arch/arm/lib/copy_to_user.S
@@ -16,7 +16,7 @@
 /*
  * Prototype:
  *
- *	size_t __copy_to_user(void *to, const void *from, size_t n)
+ *	size_t ___copy_to_user(void *to, const void *from, size_t n)
  *
  * Purpose:
  *
@@ -88,11 +88,11 @@
 	.text
 
 ENTRY(__copy_to_user_std)
-WEAK(__copy_to_user)
+WEAK(___copy_to_user)
 
 #include "copy_template.S"
 
-ENDPROC(__copy_to_user)
+ENDPROC(___copy_to_user)
 ENDPROC(__copy_to_user_std)
 
 	.pushsection .fixup,"ax"
diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S
index 7d08b43..f7ca7ea 100644
--- a/arch/arm/lib/csumpartialcopyuser.S
+++ b/arch/arm/lib/csumpartialcopyuser.S
@@ -57,8 +57,8 @@
  *  Returns : r0 = checksum, [[sp, #0], #0] = 0 or -EFAULT
  */
 
-#define FN_ENTRY	ENTRY(csum_partial_copy_from_user)
-#define FN_EXIT		ENDPROC(csum_partial_copy_from_user)
+#define FN_ENTRY	ENTRY(__csum_partial_copy_from_user)
+#define FN_EXIT		ENDPROC(__csum_partial_copy_from_user)
 
 #include "csumpartialcopygeneric.S"
 
diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c
index 64dbfa5..84a3fd9 100644
--- a/arch/arm/lib/delay.c
+++ b/arch/arm/lib/delay.c
@@ -28,7 +28,7 @@
 /*
  * Default to the loop-based delay implementation.
  */
-struct arm_delay_ops arm_delay_ops = {
+struct arm_delay_ops arm_delay_ops __read_only = {
 	.delay		= __loop_delay,
 	.const_udelay	= __loop_const_udelay,
 	.udelay		= __loop_udelay,
diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
index 025f742..8432b08 100644
--- a/arch/arm/lib/uaccess_with_memcpy.c
+++ b/arch/arm/lib/uaccess_with_memcpy.c
@@ -104,7 +104,7 @@ out:
 }
 
 unsigned long
-__copy_to_user(void __user *to, const void *from, unsigned long n)
+___copy_to_user(void __user *to, const void *from, unsigned long n)
 {
 	/*
 	 * This test is stubbed out of the main function above to keep
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 49792a0..f192052 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -150,7 +150,16 @@ static void clk_gate_fn_disable(struct clk_hw *hw)
 	clk_gate_ops.disable(hw);
 }
 
-static struct clk_ops clk_gate_fn_ops;
+static int clk_gate_fn_is_enabled(struct clk_hw *hw)
+{
+	return clk_gate_ops.is_enabled(hw);
+}
+
+static struct clk_ops clk_gate_fn_ops = {
+	.enable = clk_gate_fn_enable,
+	.disable = clk_gate_fn_disable,
+	.is_enabled = clk_gate_fn_is_enabled,
+};
 
 static struct clk __init *clk_register_gate_fn(struct device *dev,
 		const char *name,
@@ -184,14 +193,6 @@ static struct clk __init *clk_register_gate_fn(struct device *dev,
 	gate_fn->fn_en = fn_en;
 	gate_fn->fn_dis = fn_dis;
 
-	/* ops is the gate ops, but with our enable/disable functions */
-	if (clk_gate_fn_ops.enable != clk_gate_fn_enable ||
-	    clk_gate_fn_ops.disable != clk_gate_fn_disable) {
-		clk_gate_fn_ops = clk_gate_ops;
-		clk_gate_fn_ops.enable = clk_gate_fn_enable;
-		clk_gate_fn_ops.disable = clk_gate_fn_disable;
-	}
-
 	clk = clk_register(dev, &gate_fn->gate.hw);
 
 	if (IS_ERR(clk))
diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index f6eeb87..cc90868 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -631,7 +631,7 @@ static int n8x0_menelaus_late_init(struct device *dev)
 }
 #endif
 
-static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
+static struct menelaus_platform_data n8x0_menelaus_platform_data __initconst = {
 	.late_init = n8x0_menelaus_late_init,
 };
 
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 410e1ba..1d2dd59 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -145,7 +145,6 @@ struct omap3_gpmc_regs {
 };
 
 static struct gpmc_client_irq gpmc_client_irq[GPMC_NR_IRQ];
-static struct irq_chip gpmc_irq_chip;
 static unsigned gpmc_irq_start;
 
 static struct resource	gpmc_mem_root;
@@ -707,6 +706,18 @@ static void gpmc_irq_noop(struct irq_data *data) { }
 
 static unsigned int gpmc_irq_noop_ret(struct irq_data *data) { return 0; }
 
+static struct irq_chip gpmc_irq_chip = {
+	.name = "gpmc",
+	.irq_startup = gpmc_irq_noop_ret,
+	.irq_enable = gpmc_irq_enable,
+	.irq_disable = gpmc_irq_disable,
+	.irq_shutdown = gpmc_irq_noop,
+	.irq_ack = gpmc_irq_noop,
+	.irq_mask = gpmc_irq_noop,
+	.irq_unmask = gpmc_irq_noop,
+
+};
+
 static int gpmc_setup_irq(void)
 {
 	int i;
@@ -721,15 +732,6 @@ static int gpmc_setup_irq(void)
 		return gpmc_irq_start;
 	}
 
-	gpmc_irq_chip.name = "gpmc";
-	gpmc_irq_chip.irq_startup = gpmc_irq_noop_ret;
-	gpmc_irq_chip.irq_enable = gpmc_irq_enable;
-	gpmc_irq_chip.irq_disable = gpmc_irq_disable;
-	gpmc_irq_chip.irq_shutdown = gpmc_irq_noop;
-	gpmc_irq_chip.irq_ack = gpmc_irq_noop;
-	gpmc_irq_chip.irq_mask = gpmc_irq_noop;
-	gpmc_irq_chip.irq_unmask = gpmc_irq_noop;
-
 	gpmc_client_irq[0].bitmask = GPMC_IRQ_FIFOEVENTENABLE;
 	gpmc_client_irq[1].bitmask = GPMC_IRQ_COUNT_EVENT;
 
diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
index f8bb3b9..831e7b8 100644
--- a/arch/arm/mach-omap2/omap-wakeupgen.c
+++ b/arch/arm/mach-omap2/omap-wakeupgen.c
@@ -339,7 +339,7 @@ static int __cpuinit irq_cpu_hotplug_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata irq_hotplug_notifier = {
+static struct notifier_block irq_hotplug_notifier = {
 	.notifier_call = irq_cpu_hotplug_notify,
 };
 
diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index 381be7a..89b9c7e 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -499,7 +499,7 @@ void omap_device_delete(struct omap_device *od)
 struct platform_device __init *omap_device_build(const char *pdev_name,
 						 int pdev_id,
 						 struct omap_hwmod *oh,
-						 void *pdata, int pdata_len)
+						 const void *pdata, int pdata_len)
 {
 	struct omap_hwmod *ohs[] = { oh };
 
@@ -527,7 +527,7 @@ struct platform_device __init *omap_device_build(const char *pdev_name,
 struct platform_device __init *omap_device_build_ss(const char *pdev_name,
 						    int pdev_id,
 						    struct omap_hwmod **ohs,
-						    int oh_cnt, void *pdata,
+						    int oh_cnt, const void *pdata,
 						    int pdata_len)
 {
 	int ret = -ENOMEM;
diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h
index 044c31d..2ee0861 100644
--- a/arch/arm/mach-omap2/omap_device.h
+++ b/arch/arm/mach-omap2/omap_device.h
@@ -72,12 +72,12 @@ int omap_device_idle(struct platform_device *pdev);
 /* Core code interface */
 
 struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
-					  struct omap_hwmod *oh, void *pdata,
+					  struct omap_hwmod *oh, const void *pdata,
 					  int pdata_len);
 
 struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
 					 struct omap_hwmod **oh, int oh_cnt,
-					 void *pdata, int pdata_len);
+					 const void *pdata, int pdata_len);
 
 struct omap_device *omap_device_alloc(struct platform_device *pdev,
 				      struct omap_hwmod **ohs, int oh_cnt);
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index a202a47..c430564 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -191,10 +191,10 @@ struct omap_hwmod_soc_ops {
 	int (*init_clkdm)(struct omap_hwmod *oh);
 	void (*update_context_lost)(struct omap_hwmod *oh);
 	int (*get_context_lost)(struct omap_hwmod *oh);
-};
+} __no_const;
 
 /* soc_ops: adapts the omap_hwmod code to the currently-booted SoC */
-static struct omap_hwmod_soc_ops soc_ops;
+static struct omap_hwmod_soc_ops soc_ops __read_only;
 
 /* omap_hwmod_list contains all registered struct omap_hwmods */
 static LIST_HEAD(omap_hwmod_list);
diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c
index d15c7bb..b2d1f0c 100644
--- a/arch/arm/mach-omap2/wd_timer.c
+++ b/arch/arm/mach-omap2/wd_timer.c
@@ -110,7 +110,9 @@ static int __init omap_init_wdt(void)
 	struct omap_hwmod *oh;
 	char *oh_name = "wd_timer2";
 	char *dev_name = "omap_wdt";
-	struct omap_wd_timer_platform_data pdata;
+	static struct omap_wd_timer_platform_data pdata = {
+		.read_reset_sources = prm_read_reset_sources
+	};
 
 	if (!cpu_class_is_omap2() || of_have_populated_dt())
 		return 0;
@@ -121,8 +123,6 @@ static int __init omap_init_wdt(void)
 		return -EINVAL;
 	}
 
-	pdata.read_reset_sources = prm_read_reset_sources;
-
 	pdev = omap_device_build(dev_name, id, oh, &pdata,
 				 sizeof(struct omap_wd_timer_platform_data));
 	WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
diff --git a/arch/arm/mach-ux500/include/mach/setup.h b/arch/arm/mach-ux500/include/mach/setup.h
index bddce2b..3eb04e2 100644
--- a/arch/arm/mach-ux500/include/mach/setup.h
+++ b/arch/arm/mach-ux500/include/mach/setup.h
@@ -37,13 +37,6 @@ extern void ux500_timer_init(void);
 	.type		= MT_DEVICE,		\
 }
 
-#define __MEM_DEV_DESC(x, sz)	{		\
-	.virtual	= IO_ADDRESS(x),	\
-	.pfn		= __phys_to_pfn(x),	\
-	.length		= sz,			\
-	.type		= MT_MEMORY,		\
-}
-
 extern struct smp_operations ux500_smp_ops;
 extern void ux500_cpu_die(unsigned int cpu);
 
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 4045c49..4e26c79 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -425,7 +425,7 @@ config CPU_32v5
 
 config CPU_32v6
 	bool
-	select CPU_USE_DOMAINS if CPU_V6 && MMU
+	select CPU_USE_DOMAINS if CPU_V6 && MMU && !PAX_KERNEXEC
 	select TLS_REG_EMUL if !CPU_32v6K && !MMU
 
 config CPU_32v6K
@@ -574,6 +574,7 @@ config CPU_CP15_MPU
 
 config CPU_USE_DOMAINS
 	bool
+	depends on !ARM_LPAE && !PAX_KERNEXEC
 	help
 	  This option enables or disables the use of domain switching
 	  via the set_fs() function.
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index db26e2e..ee44569 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -211,10 +211,12 @@ union offset_union {
 #define __get16_unaligned_check(ins,val,addr)			\
 	do {							\
 		unsigned int err = 0, v, a = addr;		\
+		pax_open_userland();				\
 		__get8_unaligned_check(ins,v,a,err);		\
 		val =  v << ((BE) ? 8 : 0);			\
 		__get8_unaligned_check(ins,v,a,err);		\
 		val |= v << ((BE) ? 0 : 8);			\
+		pax_close_userland();				\
 		if (err)					\
 			goto fault;				\
 	} while (0)
@@ -228,6 +230,7 @@ union offset_union {
 #define __get32_unaligned_check(ins,val,addr)			\
 	do {							\
 		unsigned int err = 0, v, a = addr;		\
+		pax_open_userland();				\
 		__get8_unaligned_check(ins,v,a,err);		\
 		val =  v << ((BE) ? 24 :  0);			\
 		__get8_unaligned_check(ins,v,a,err);		\
@@ -236,6 +239,7 @@ union offset_union {
 		val |= v << ((BE) ?  8 : 16);			\
 		__get8_unaligned_check(ins,v,a,err);		\
 		val |= v << ((BE) ?  0 : 24);			\
+		pax_close_userland();				\
 		if (err)					\
 			goto fault;				\
 	} while (0)
@@ -249,6 +253,7 @@ union offset_union {
 #define __put16_unaligned_check(ins,val,addr)			\
 	do {							\
 		unsigned int err = 0, v = val, a = addr;	\
+		pax_open_userland();				\
 		__asm__( FIRST_BYTE_16				\
 	 ARM(	"1:	"ins"	%1, [%2], #1\n"	)		\
 	 THUMB(	"1:	"ins"	%1, [%2]\n"	)		\
@@ -268,6 +273,7 @@ union offset_union {
 		"	.popsection\n"				\
 		: "=r" (err), "=&r" (v), "=&r" (a)		\
 		: "0" (err), "1" (v), "2" (a));			\
+		pax_close_userland();				\
 		if (err)					\
 			goto fault;				\
 	} while (0)
@@ -281,6 +287,7 @@ union offset_union {
 #define __put32_unaligned_check(ins,val,addr)			\
 	do {							\
 		unsigned int err = 0, v = val, a = addr;	\
+		pax_open_userland();				\
 		__asm__( FIRST_BYTE_32				\
 	 ARM(	"1:	"ins"	%1, [%2], #1\n"	)		\
 	 THUMB(	"1:	"ins"	%1, [%2]\n"	)		\
@@ -310,6 +317,7 @@ union offset_union {
 		"	.popsection\n"				\
 		: "=r" (err), "=&r" (v), "=&r" (a)		\
 		: "0" (err), "1" (v), "2" (a));			\
+		pax_close_userland();				\
 		if (err)					\
 			goto fault;				\
 	} while (0)
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 5dbf13f..1a60561 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -25,6 +25,7 @@
 #include <asm/system_misc.h>
 #include <asm/system_info.h>
 #include <asm/tlbflush.h>
+#include <asm/sections.h>
 
 #include "fault.h"
 
@@ -138,6 +139,20 @@ __do_kernel_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
 	if (fixup_exception(regs))
 		return;
 
+#ifdef CONFIG_PAX_KERNEXEC
+	if ((fsr & FSR_WRITE) &&
+	    (((unsigned long)_stext <= addr && addr < init_mm.end_code) ||
+	     (MODULES_VADDR <= addr && addr < MODULES_END)))
+	{
+		if (current->signal->curr_ip)
+			printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+		else
+			printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+	}
+#endif
+
 	/*
 	 * No handler, we'll have to terminate things with extreme prejudice.
 	 */
@@ -174,6 +189,13 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr,
 	}
 #endif
 
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (fsr & FSR_LNX_PF) {
+		pax_report_fault(regs, (void *)regs->ARM_pc, (void *)regs->ARM_sp);
+		do_group_exit(SIGKILL);
+	}
+#endif
+
 	tsk->thread.address = addr;
 	tsk->thread.error_code = fsr;
 	tsk->thread.trap_no = 14;
@@ -398,6 +420,33 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 }
 #endif					/* CONFIG_MMU */
 
+#ifdef CONFIG_PAX_PAGEEXEC
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 20; i++) {
+		unsigned char c;
+		if (get_user(c, (__force unsigned char __user *)pc+i))
+			printk(KERN_CONT "?? ");
+		else
+			printk(KERN_CONT "%02x ", c);
+	}
+	printk("\n");
+
+	printk(KERN_ERR "PAX: bytes at SP-4: ");
+	for (i = -1; i < 20; i++) {
+		unsigned long c;
+		if (get_user(c, (__force unsigned long __user *)sp+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08lx ", c);
+	}
+	printk("\n");
+}
+#endif
+
 /*
  * First Level Translation Fault Handler
  *
@@ -543,9 +592,22 @@ do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	const struct fsr_info *inf = fsr_info + fsr_fs(fsr);
 	struct siginfo info;
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (addr < TASK_SIZE && is_domain_fault(fsr)) {
+		if (current->signal->curr_ip)
+			printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
+		else
+			printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
+		goto die;
+	}
+#endif
+
 	if (!inf->fn(addr, fsr & ~FSR_LNX_PF, regs))
 		return;
 
+die:
 	printk(KERN_ALERT "Unhandled fault: %s (0x%03x) at 0x%08lx\n",
 		inf->name, fsr, addr);
 
@@ -575,9 +637,49 @@ do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs)
 	const struct fsr_info *inf = ifsr_info + fsr_fs(ifsr);
 	struct siginfo info;
 
+	if (user_mode(regs)) {
+		if (addr == 0xffff0fe0UL) {
+			/*
+			 * PaX: __kuser_get_tls emulation
+			 */
+			regs->ARM_r0 = current_thread_info()->tp_value;
+			regs->ARM_pc = regs->ARM_lr;
+			return;
+		}
+	}
+
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	else if (is_domain_fault(ifsr) || is_xn_fault(ifsr)) {
+		if (current->signal->curr_ip)
+			printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()),
+					addr >= TASK_SIZE ? "non-executable kernel" : "userland", addr);
+		else
+			printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()),
+					addr >= TASK_SIZE ? "non-executable kernel" : "userland", addr);
+		goto die;
+	}
+#endif
+
+#ifdef CONFIG_PAX_REFCOUNT
+	if (fsr_fs(ifsr) == FAULT_CODE_DEBUG) {
+		unsigned int bkpt;
+
+		if (!probe_kernel_address((unsigned int *)addr, bkpt) && bkpt == 0xe12f1073) {
+			current->thread.error_code = ifsr;
+			current->thread.trap_no = 0;
+			pax_report_refcount_overflow(regs);
+			fixup_exception(regs);
+			return;
+		}
+	}
+#endif
+
 	if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs))
 		return;
 
+die:
 	printk(KERN_ALERT "Unhandled prefetch abort: %s (0x%03x) at 0x%08lx\n",
 		inf->name, ifsr, addr);
 
diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h
index cf08bdf..772656c 100644
--- a/arch/arm/mm/fault.h
+++ b/arch/arm/mm/fault.h
@@ -3,6 +3,7 @@
 
 /*
  * Fault status register encodings.  We steal bit 31 for our own purposes.
+ * Set when the FSR value is from an instruction fault.
  */
 #define FSR_LNX_PF		(1 << 31)
 #define FSR_WRITE		(1 << 11)
@@ -22,6 +23,17 @@ static inline int fsr_fs(unsigned int fsr)
 }
 #endif
 
+/* valid for LPAE and !LPAE */
+static inline int is_xn_fault(unsigned int fsr)
+{
+	return ((fsr_fs(fsr) & 0x3c) == 0xc);
+}
+
+static inline int is_domain_fault(unsigned int fsr)
+{
+	return ((fsr_fs(fsr) & 0xD) == 0x9);
+}
+
 void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
 unsigned long search_exception_table(unsigned long addr);
 
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index ad722f1..763fdd3 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -30,6 +30,8 @@
 #include <asm/setup.h>
 #include <asm/tlb.h>
 #include <asm/fixmap.h>
+#include <asm/system_info.h>
+#include <asm/cp15.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -736,7 +738,46 @@ void free_initmem(void)
 {
 #ifdef CONFIG_HAVE_TCM
 	extern char __tcm_start, __tcm_end;
+#endif
 
+#ifdef CONFIG_PAX_KERNEXEC
+	unsigned long addr;
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	int cpu_arch = cpu_architecture();
+	unsigned int cr = get_cr();
+
+	if (cpu_arch >= CPU_ARCH_ARMv6 && (cr & CR_XP)) {
+		/* make pages tables, etc before .text NX */
+		for (addr = PAGE_OFFSET; addr < (unsigned long)_stext; addr += SECTION_SIZE) {
+			pgd = pgd_offset_k(addr);
+			pud = pud_offset(pgd, addr);
+			pmd = pmd_offset(pud, addr);
+			__section_update(pmd, addr, PMD_SECT_XN);
+		}
+		/* make init NX */
+		for (addr = (unsigned long)__init_begin; addr < (unsigned long)_sdata; addr += SECTION_SIZE) {
+			pgd = pgd_offset_k(addr);
+			pud = pud_offset(pgd, addr);
+			pmd = pmd_offset(pud, addr);
+			__section_update(pmd, addr, PMD_SECT_XN);
+		}
+		/* make kernel code/rodata RX */
+		for (addr = (unsigned long)_stext; addr < (unsigned long)__init_begin; addr += SECTION_SIZE) {
+			pgd = pgd_offset_k(addr);
+			pud = pud_offset(pgd, addr);
+			pmd = pmd_offset(pud, addr);
+#ifdef CONFIG_ARM_LPAE
+			__section_update(pmd, addr, PMD_SECT_RDONLY);
+#else
+			__section_update(pmd, addr, PMD_SECT_APX|PMD_SECT_AP_WRITE);
+#endif
+		}
+	}
+#endif
+
+#ifdef CONFIG_HAVE_TCM
 	poison_init_mem(&__tcm_start, &__tcm_end - &__tcm_start);
 	totalram_pages += free_area(__phys_to_pfn(__pa(&__tcm_start)),
 				    __phys_to_pfn(__pa(&__tcm_end)),
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index 04d9006..c547d85 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -392,9 +392,9 @@ __arm_ioremap_exec(unsigned long phys_addr, size_t size, bool cached)
 	unsigned int mtype;
 
 	if (cached)
-		mtype = MT_MEMORY;
+		mtype = MT_MEMORY_RX;
 	else
-		mtype = MT_MEMORY_NONCACHED;
+		mtype = MT_MEMORY_NONCACHED_RX;
 
 	return __arm_ioremap_caller(phys_addr, size, mtype,
 			__builtin_return_address(0));
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 10062ce..cd34fb9 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -59,6 +59,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	struct vm_area_struct *vma;
 	int do_align = 0;
 	int aliasing = cache_is_vipt_aliasing();
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	/*
@@ -81,6 +82,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	if (len > TASK_SIZE)
 		return -ENOMEM;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		if (do_align)
 			addr = COLOUR_ALIGN(addr, pgoff);
@@ -88,8 +93,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -99,6 +103,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.high_limit = TASK_SIZE;
 	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
@@ -112,6 +117,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	unsigned long addr = addr0;
 	int do_align = 0;
 	int aliasing = cache_is_vipt_aliasing();
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	/*
@@ -132,6 +138,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		return addr;
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* requesting a specific address */
 	if (addr) {
 		if (do_align)
@@ -139,8 +149,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		else
 			addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -150,6 +159,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	/*
@@ -162,6 +172,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = mm->mmap_base;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = TASK_SIZE;
 		addr = vm_unmapped_area(&info);
 	}
@@ -173,6 +189,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	unsigned long random_factor = 0UL;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* 8 bits of randomness in 20 address space bits */
 	if ((current->flags & PF_RANDOMIZE) &&
 	    !(current->personality & ADDR_NO_RANDOMIZE))
@@ -180,10 +200,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area;
 		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base(random_factor);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 		mm->unmap_area = arch_unmap_area_topdown;
 	}
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index a84ff76..f221c1d 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -36,6 +36,22 @@
 #include "mm.h"
 #include "tcm.h"
 
+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+void modify_domain(unsigned int dom, unsigned int type)
+{
+	struct thread_info *thread = current_thread_info();
+	unsigned int domain = thread->cpu_domain;
+	/*
+	 * DOMAIN_MANAGER might be defined to some other value,
+	 * use the arch-defined constant
+	 */
+	domain &= ~domain_val(dom, 3);
+	thread->cpu_domain = domain | domain_val(dom, type);
+	set_domain(thread->cpu_domain);
+}
+EXPORT_SYMBOL(modify_domain);
+#endif
+
 /*
  * empty_zero_page is a special page that is used for
  * zero-initialized data and COW.
@@ -211,10 +227,18 @@ void adjust_cr(unsigned long mask, unsigned long set)
 }
 #endif
 
-#define PROT_PTE_DEVICE		L_PTE_PRESENT|L_PTE_YOUNG|L_PTE_DIRTY|L_PTE_XN
+#define PROT_PTE_DEVICE		L_PTE_PRESENT|L_PTE_YOUNG|L_PTE_DIRTY
 #define PROT_SECT_DEVICE	PMD_TYPE_SECT|PMD_SECT_AP_WRITE
 
-static struct mem_type mem_types[] = {
+#ifdef CONFIG_PAX_KERNEXEC
+#define L_PTE_KERNEXEC		L_PTE_RDONLY
+#define PMD_SECT_KERNEXEC	PMD_SECT_RDONLY
+#else
+#define L_PTE_KERNEXEC		L_PTE_DIRTY
+#define PMD_SECT_KERNEXEC	PMD_SECT_AP_WRITE
+#endif
+
+static struct mem_type mem_types[] __read_only = {
 	[MT_DEVICE] = {		  /* Strongly ordered / ARMv6 shared device */
 		.prot_pte	= PROT_PTE_DEVICE | L_PTE_MT_DEV_SHARED |
 				  L_PTE_SHARED,
@@ -243,16 +267,16 @@ static struct mem_type mem_types[] = {
 	[MT_UNCACHED] = {
 		.prot_pte	= PROT_PTE_DEVICE,
 		.prot_l1	= PMD_TYPE_TABLE,
-		.prot_sect	= PMD_TYPE_SECT | PMD_SECT_XN,
+		.prot_sect	= PROT_SECT_DEVICE,
 		.domain		= DOMAIN_IO,
 	},
 	[MT_CACHECLEAN] = {
-		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_RDONLY,
 		.domain    = DOMAIN_KERNEL,
 	},
 #ifndef CONFIG_ARM_LPAE
 	[MT_MINICLEAN] = {
-		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN | PMD_SECT_MINICACHE,
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_MINICACHE | PMD_SECT_RDONLY,
 		.domain    = DOMAIN_KERNEL,
 	},
 #endif
@@ -260,36 +284,54 @@ static struct mem_type mem_types[] = {
 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
 				L_PTE_RDONLY,
 		.prot_l1   = PMD_TYPE_TABLE,
-		.domain    = DOMAIN_USER,
+		.domain    = DOMAIN_VECTORS,
 	},
 	[MT_HIGH_VECTORS] = {
 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
-				L_PTE_USER | L_PTE_RDONLY,
+			     L_PTE_RDONLY,
 		.prot_l1   = PMD_TYPE_TABLE,
-		.domain    = DOMAIN_USER,
+		.domain    = DOMAIN_VECTORS,
 	},
-	[MT_MEMORY] = {
+	[MT_MEMORY_RWX] = {
 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
 		.prot_l1   = PMD_TYPE_TABLE,
 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
 		.domain    = DOMAIN_KERNEL,
 	},
+	[MT_MEMORY_RW] = {
+		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
+		.prot_l1   = PMD_TYPE_TABLE,
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
+		.domain	   = DOMAIN_KERNEL,
+	},
+	[MT_MEMORY_RX] = {
+		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC,
+		.prot_l1   = PMD_TYPE_TABLE,
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
+		.domain	   = DOMAIN_KERNEL,
+	},
 	[MT_ROM] = {
-		.prot_sect = PMD_TYPE_SECT,
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_RDONLY,
 		.domain    = DOMAIN_KERNEL,
 	},
-	[MT_MEMORY_NONCACHED] = {
+	[MT_MEMORY_NONCACHED_RW] = {
 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
 				L_PTE_MT_BUFFERABLE,
 		.prot_l1   = PMD_TYPE_TABLE,
 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
 		.domain    = DOMAIN_KERNEL,
 	},
+	[MT_MEMORY_NONCACHED_RX] = {
+		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC |
+				L_PTE_MT_BUFFERABLE,
+		.prot_l1   = PMD_TYPE_TABLE,
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
+		.domain    = DOMAIN_KERNEL,
+	},
 	[MT_MEMORY_DTCM] = {
-		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
-				L_PTE_XN,
+		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
 		.prot_l1   = PMD_TYPE_TABLE,
-		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_RDONLY,
 		.domain    = DOMAIN_KERNEL,
 	},
 	[MT_MEMORY_ITCM] = {
@@ -299,10 +341,10 @@ static struct mem_type mem_types[] = {
 	},
 	[MT_MEMORY_SO] = {
 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
-				L_PTE_MT_UNCACHED | L_PTE_XN,
+				L_PTE_MT_UNCACHED,
 		.prot_l1   = PMD_TYPE_TABLE,
 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_S |
-				PMD_SECT_UNCACHED | PMD_SECT_XN,
+				PMD_SECT_UNCACHED,
 		.domain    = DOMAIN_KERNEL,
 	},
 	[MT_MEMORY_DMA_READY] = {
@@ -388,9 +430,35 @@ static void __init build_mem_type_table(void)
 			 * to prevent speculative instruction fetches.
 			 */
 			mem_types[MT_DEVICE].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_DEVICE].prot_pte |= L_PTE_XN;
 			mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_DEVICE_NONSHARED].prot_pte |= L_PTE_XN;
 			mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_XN;
 			mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_XN;
+
+			/* Mark other regions on ARMv6+ as execute-never */
+
+#ifdef CONFIG_PAX_KERNEXEC
+			mem_types[MT_UNCACHED].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_UNCACHED].prot_pte |= L_PTE_XN;
+			mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_CACHECLEAN].prot_pte |= L_PTE_XN;
+#ifndef CONFIG_ARM_LPAE
+			mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_MINICLEAN].prot_pte |= L_PTE_XN;
+#endif
+			mem_types[MT_MEMORY_RW].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_MEMORY_RW].prot_pte |= L_PTE_XN;
+			mem_types[MT_MEMORY_NONCACHED_RW].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_MEMORY_NONCACHED_RW].prot_pte |= PMD_SECT_XN;
+			mem_types[MT_MEMORY_DTCM].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_MEMORY_DTCM].prot_pte |= L_PTE_XN;
+#endif
+
+			mem_types[MT_MEMORY_SO].prot_sect |= PMD_SECT_XN;
+			mem_types[MT_MEMORY_SO].prot_pte |= L_PTE_XN;
 		}
 		if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) {
 			/*
@@ -451,6 +519,9 @@ static void __init build_mem_type_table(void)
 		 * from SVC mode and no access from userspace.
 		 */
 		mem_types[MT_ROM].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+#ifdef CONFIG_PAX_KERNEXEC
+		mem_types[MT_MEMORY_RX].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+#endif
 		mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
 		mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
 #endif
@@ -468,11 +539,17 @@ static void __init build_mem_type_table(void)
 			mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED;
 			mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
 			mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
-			mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
-			mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
+			mem_types[MT_MEMORY_RWX].prot_sect |= PMD_SECT_S;
+			mem_types[MT_MEMORY_RWX].prot_pte |= L_PTE_SHARED;
+			mem_types[MT_MEMORY_RW].prot_sect |= PMD_SECT_S;
+			mem_types[MT_MEMORY_RW].prot_pte |= L_PTE_SHARED;
+			mem_types[MT_MEMORY_RX].prot_sect |= PMD_SECT_S;
+			mem_types[MT_MEMORY_RX].prot_pte |= L_PTE_SHARED;
 			mem_types[MT_MEMORY_DMA_READY].prot_pte |= L_PTE_SHARED;
-			mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S;
-			mem_types[MT_MEMORY_NONCACHED].prot_pte |= L_PTE_SHARED;
+			mem_types[MT_MEMORY_NONCACHED_RW].prot_sect |= PMD_SECT_S;
+			mem_types[MT_MEMORY_NONCACHED_RW].prot_pte |= L_PTE_SHARED;
+			mem_types[MT_MEMORY_NONCACHED_RX].prot_sect |= PMD_SECT_S;
+			mem_types[MT_MEMORY_NONCACHED_RX].prot_pte |= L_PTE_SHARED;
 		}
 	}
 
@@ -483,15 +560,20 @@ static void __init build_mem_type_table(void)
 	if (cpu_arch >= CPU_ARCH_ARMv6) {
 		if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) {
 			/* Non-cacheable Normal is XCB = 001 */
-			mem_types[MT_MEMORY_NONCACHED].prot_sect |=
+			mem_types[MT_MEMORY_NONCACHED_RW].prot_sect |=
+				PMD_SECT_BUFFERED;
+			mem_types[MT_MEMORY_NONCACHED_RX].prot_sect |=
 				PMD_SECT_BUFFERED;
 		} else {
 			/* For both ARMv6 and non-TEX-remapping ARMv7 */
-			mem_types[MT_MEMORY_NONCACHED].prot_sect |=
+			mem_types[MT_MEMORY_NONCACHED_RW].prot_sect |=
+				PMD_SECT_TEX(1);
+			mem_types[MT_MEMORY_NONCACHED_RX].prot_sect |=
 				PMD_SECT_TEX(1);
 		}
 	} else {
-		mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
+		mem_types[MT_MEMORY_NONCACHED_RW].prot_sect |= PMD_SECT_BUFFERABLE;
+		mem_types[MT_MEMORY_NONCACHED_RX].prot_sect |= PMD_SECT_BUFFERABLE;
 	}
 
 #ifdef CONFIG_ARM_LPAE
@@ -507,6 +589,8 @@ static void __init build_mem_type_table(void)
 	vecs_pgprot |= PTE_EXT_AF;
 #endif
 
+	user_pgprot |= __supported_pte_mask;
+
 	for (i = 0; i < 16; i++) {
 		pteval_t v = pgprot_val(protection_map[i]);
 		protection_map[i] = __pgprot(v | user_pgprot);
@@ -524,10 +608,15 @@ static void __init build_mem_type_table(void)
 
 	mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask;
 	mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask;
-	mem_types[MT_MEMORY].prot_sect |= ecc_mask | cp->pmd;
-	mem_types[MT_MEMORY].prot_pte |= kern_pgprot;
+	mem_types[MT_MEMORY_RWX].prot_sect |= ecc_mask | cp->pmd;
+	mem_types[MT_MEMORY_RWX].prot_pte |= kern_pgprot;
+	mem_types[MT_MEMORY_RW].prot_sect |= ecc_mask | cp->pmd;
+	mem_types[MT_MEMORY_RW].prot_pte |= kern_pgprot;
+	mem_types[MT_MEMORY_RX].prot_sect |= ecc_mask | cp->pmd;
+	mem_types[MT_MEMORY_RX].prot_pte |= kern_pgprot;
 	mem_types[MT_MEMORY_DMA_READY].prot_pte |= kern_pgprot;
-	mem_types[MT_MEMORY_NONCACHED].prot_sect |= ecc_mask;
+	mem_types[MT_MEMORY_NONCACHED_RW].prot_sect |= ecc_mask;
+	mem_types[MT_MEMORY_NONCACHED_RX].prot_sect |= ecc_mask;
 	mem_types[MT_ROM].prot_sect |= cp->pmd;
 
 	switch (cp->pmd) {
@@ -1147,18 +1236,15 @@ void __init arm_mm_memblock_reserve(void)
  * called function.  This means you can't use any function or debugging
  * method which may touch any device, otherwise the kernel _will_ crash.
  */
+
+static char vectors[PAGE_SIZE] __read_only __aligned(PAGE_SIZE);
+
 static void __init devicemaps_init(struct machine_desc *mdesc)
 {
 	struct map_desc map;
 	unsigned long addr;
-	void *vectors;
 
-	/*
-	 * Allocate the vector page early.
-	 */
-	vectors = early_alloc(PAGE_SIZE);
-
-	early_trap_init(vectors);
+	early_trap_init(&vectors);
 
 	for (addr = VMALLOC_START; addr; addr += PMD_SIZE)
 		pmd_clear(pmd_off_k(addr));
@@ -1198,7 +1284,7 @@ static void __init devicemaps_init(struct machine_desc *mdesc)
 	 * location (0xffff0000).  If we aren't using high-vectors, also
 	 * create a mapping at the low-vectors virtual address.
 	 */
-	map.pfn = __phys_to_pfn(virt_to_phys(vectors));
+	map.pfn = __phys_to_pfn(virt_to_phys(&vectors));
 	map.virtual = 0xffff0000;
 	map.length = PAGE_SIZE;
 	map.type = MT_HIGH_VECTORS;
@@ -1256,8 +1342,39 @@ static void __init map_lowmem(void)
 		map.pfn = __phys_to_pfn(start);
 		map.virtual = __phys_to_virt(start);
 		map.length = end - start;
-		map.type = MT_MEMORY;
 
+#ifdef CONFIG_PAX_KERNEXEC
+		if (map.virtual <= (unsigned long)_stext && ((unsigned long)_end < (map.virtual + map.length))) {
+			struct map_desc kernel;
+			struct map_desc initmap;
+
+			/* when freeing initmem we will make this RW */
+			initmap.pfn = __phys_to_pfn(__pa(__init_begin));
+			initmap.virtual = (unsigned long)__init_begin;
+			initmap.length = _sdata - __init_begin;
+			initmap.type = MT_MEMORY_RWX;
+			create_mapping(&initmap);
+
+			/* when freeing initmem we will make this RX */
+			kernel.pfn = __phys_to_pfn(__pa(_stext));
+			kernel.virtual = (unsigned long)_stext;
+			kernel.length = __init_begin - _stext;
+			kernel.type = MT_MEMORY_RWX;
+			create_mapping(&kernel);
+
+			if (map.virtual < (unsigned long)_stext) {
+				map.length = (unsigned long)_stext - map.virtual;
+				map.type = MT_MEMORY_RWX;
+				create_mapping(&map);
+			}
+
+			map.pfn = __phys_to_pfn(__pa(_sdata));
+			map.virtual = (unsigned long)_sdata;
+			map.length = end - __pa(_sdata);
+		}
+#endif
+
+		map.type = MT_MEMORY_RW;
 		create_mapping(&map);
 	}
 }
diff --git a/arch/arm/mm/proc-v7-2level.S b/arch/arm/mm/proc-v7-2level.S
index 78f520b..31f0cb6 100644
--- a/arch/arm/mm/proc-v7-2level.S
+++ b/arch/arm/mm/proc-v7-2level.S
@@ -99,6 +99,9 @@ ENTRY(cpu_v7_set_pte_ext)
 	tst	r1, #L_PTE_XN
 	orrne	r3, r3, #PTE_EXT_XN
 
+	tst	r1, #L_PTE_PXN
+	orrne	r3, r3, #PTE_EXT_PXN
+
 	tst	r1, #L_PTE_YOUNG
 	tstne	r1, #L_PTE_VALID
 #ifndef CONFIG_CPU_USE_DOMAINS
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index a5bc92d..0bb4730 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -93,6 +93,8 @@ void __init omap_map_sram(unsigned long start, unsigned long size,
 	 * Looks like we need to preserve some bootloader code at the
 	 * beginning of SRAM for jumping to flash for reboot to work...
 	 */
+	pax_open_kernel();
 	memset_io(omap_sram_base + omap_sram_skip, 0,
 		  omap_sram_size - omap_sram_skip);
+	pax_close_kernel();
 }
diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h
index 1141782..0959d64 100644
--- a/arch/arm/plat-samsung/include/plat/dma-ops.h
+++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
@@ -48,7 +48,7 @@ struct samsung_dma_ops {
 	int (*started)(unsigned ch);
 	int (*flush)(unsigned ch);
 	int (*stop)(unsigned ch);
-};
+} __no_const;
 
 extern void *samsung_dmadev_get_ops(void);
 extern void *s3c_dma_get_ops(void);
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index f4726dc..39ed646 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -149,7 +149,7 @@ static int __cpuinit os_lock_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata os_lock_nb = {
+static struct notifier_block os_lock_nb = {
 	.notifier_call = os_lock_notify,
 };
 
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 5ab825c..96aaec8 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -831,7 +831,7 @@ static int __cpuinit hw_breakpoint_reset_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata hw_breakpoint_reset_nb = {
+static struct notifier_block hw_breakpoint_reset_nb = {
 	.notifier_call = hw_breakpoint_reset_notify,
 };
 
diff --git a/arch/avr32/include/asm/cache.h b/arch/avr32/include/asm/cache.h
index c3a58a1..78fbf54 100644
--- a/arch/avr32/include/asm/cache.h
+++ b/arch/avr32/include/asm/cache.h
@@ -1,8 +1,10 @@
 #ifndef __ASM_AVR32_CACHE_H
 #define __ASM_AVR32_CACHE_H
 
+#include <linux/const.h>
+
 #define L1_CACHE_SHIFT 5
-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
 
 /*
  * Memory returned by kmalloc() may be used for DMA, so we must make
diff --git a/arch/avr32/include/asm/elf.h b/arch/avr32/include/asm/elf.h
index d232888..87c8df1 100644
--- a/arch/avr32/include/asm/elf.h
+++ b/arch/avr32/include/asm/elf.h
@@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpregset_t;
    the loader.  We need to make sure that it is out of the way of the program
    that it will "exec", and that there is sufficient room for the brk.  */
 
-#define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
+#define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	0x00001000UL
+
+#define PAX_DELTA_MMAP_LEN	15
+#define PAX_DELTA_STACK_LEN	15
+#endif
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This could be done in user space,
diff --git a/arch/avr32/include/asm/kmap_types.h b/arch/avr32/include/asm/kmap_types.h
index 479330b..53717a8 100644
--- a/arch/avr32/include/asm/kmap_types.h
+++ b/arch/avr32/include/asm/kmap_types.h
@@ -2,9 +2,9 @@
 #define __ASM_AVR32_KMAP_TYPES_H
 
 #ifdef CONFIG_DEBUG_HIGHMEM
-# define KM_TYPE_NR 29
+# define KM_TYPE_NR 30
 #else
-# define KM_TYPE_NR 14
+# define KM_TYPE_NR 15
 #endif
 
 #endif /* __ASM_AVR32_KMAP_TYPES_H */
diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
index b2f2d2d..d1c85cb 100644
--- a/arch/avr32/mm/fault.c
+++ b/arch/avr32/mm/fault.c
@@ -41,6 +41,23 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap)
 
 int exception_trace = 1;
 
+#ifdef CONFIG_PAX_PAGEEXEC
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 20; i++) {
+		unsigned char c;
+		if (get_user(c, (unsigned char *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%02x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 /*
  * This routine handles page faults. It determines the address and the
  * problem, and then passes it off to one of the appropriate routines.
@@ -174,6 +191,16 @@ bad_area:
 	up_read(&mm->mmap_sem);
 
 	if (user_mode(regs)) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if (mm->pax_flags & MF_PAX_PAGEEXEC) {
+			if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) {
+				pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp);
+				do_group_exit(SIGKILL);
+			}
+		}
+#endif
+
 		if (exception_trace && printk_ratelimit())
 			printk("%s%s[%d]: segfault at %08lx pc %08lx "
 			       "sp %08lx ecr %lu\n",
diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
index 568885a..f8008df 100644
--- a/arch/blackfin/include/asm/cache.h
+++ b/arch/blackfin/include/asm/cache.h
@@ -7,6 +7,7 @@
 #ifndef __ARCH_BLACKFIN_CACHE_H
 #define __ARCH_BLACKFIN_CACHE_H
 
+#include <linux/const.h>
 #include <linux/linkage.h>	/* for asmlinkage */
 
 /*
@@ -14,7 +15,7 @@
  * Blackfin loads 32 bytes for cache
  */
 #define L1_CACHE_SHIFT	5
-#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES	(_AC(1,UL) << L1_CACHE_SHIFT)
 #define SMP_CACHE_BYTES	L1_CACHE_BYTES
 
 #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
diff --git a/arch/cris/include/arch-v10/arch/cache.h b/arch/cris/include/arch-v10/arch/cache.h
index aea2718..3639a60 100644
--- a/arch/cris/include/arch-v10/arch/cache.h
+++ b/arch/cris/include/arch-v10/arch/cache.h
@@ -1,8 +1,9 @@
 #ifndef _ASM_ARCH_CACHE_H
 #define _ASM_ARCH_CACHE_H
 
+#include <linux/const.h>
 /* Etrax 100LX have 32-byte cache-lines. */
-#define L1_CACHE_BYTES 32
 #define L1_CACHE_SHIFT 5
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
 
 #endif /* _ASM_ARCH_CACHE_H */
diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h
index 7caf25d..ee65ac5 100644
--- a/arch/cris/include/arch-v32/arch/cache.h
+++ b/arch/cris/include/arch-v32/arch/cache.h
@@ -1,11 +1,12 @@
 #ifndef _ASM_CRIS_ARCH_CACHE_H
 #define _ASM_CRIS_ARCH_CACHE_H
 
+#include <linux/const.h>
 #include <arch/hwregs/dma.h>
 
 /* A cache-line is 32 bytes. */
-#define L1_CACHE_BYTES 32
 #define L1_CACHE_SHIFT 5
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
 
diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h
index b86329d..6709906 100644
--- a/arch/frv/include/asm/atomic.h
+++ b/arch/frv/include/asm/atomic.h
@@ -186,6 +186,16 @@ static inline void atomic64_dec(atomic64_t *v)
 #define atomic64_cmpxchg(v, old, new)	(__cmpxchg_64(old, new, &(v)->counter))
 #define atomic64_xchg(v, new)		(__xchg_64(new, &(v)->counter))
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 {
 	int c, old;
diff --git a/arch/frv/include/asm/cache.h b/arch/frv/include/asm/cache.h
index 2797163..c2a401d 100644
--- a/arch/frv/include/asm/cache.h
+++ b/arch/frv/include/asm/cache.h
@@ -12,10 +12,11 @@
 #ifndef __ASM_CACHE_H
 #define __ASM_CACHE_H
 
+#include <linux/const.h>
 
 /* bytes per L1 cache line */
 #define L1_CACHE_SHIFT		(CONFIG_FRV_L1_CACHE_SHIFT)
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define __cacheline_aligned	__attribute__((aligned(L1_CACHE_BYTES)))
 #define ____cacheline_aligned	__attribute__((aligned(L1_CACHE_BYTES)))
diff --git a/arch/frv/include/asm/kmap_types.h b/arch/frv/include/asm/kmap_types.h
index 43901f2..0d8b865 100644
--- a/arch/frv/include/asm/kmap_types.h
+++ b/arch/frv/include/asm/kmap_types.h
@@ -2,6 +2,6 @@
 #ifndef _ASM_KMAP_TYPES_H
 #define _ASM_KMAP_TYPES_H
 
-#define KM_TYPE_NR 17
+#define KM_TYPE_NR 18
 
 #endif
diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
index 836f147..4cf23f5 100644
--- a/arch/frv/mm/elf-fdpic.c
+++ b/arch/frv/mm/elf-fdpic.c
@@ -61,6 +61,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 {
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
 
 	if (len > TASK_SIZE)
 		return -ENOMEM;
@@ -73,8 +74,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(current->mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			goto success;
 	}
 
@@ -85,6 +85,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	info.high_limit = (current->mm->start_stack - 0x00200000);
 	info.align_mask = 0;
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 	if (!(addr & ~PAGE_MASK))
 		goto success;
diff --git a/arch/hexagon/include/asm/cache.h b/arch/hexagon/include/asm/cache.h
index f4ca594..adc72fd6 100644
--- a/arch/hexagon/include/asm/cache.h
+++ b/arch/hexagon/include/asm/cache.h
@@ -21,9 +21,11 @@
 #ifndef __ASM_CACHE_H
 #define __ASM_CACHE_H
 
+#include <linux/const.h>
+
 /* Bytes per L1 cache line */
-#define L1_CACHE_SHIFT		(5)
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_SHIFT		5
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define __cacheline_aligned	__aligned(L1_CACHE_BYTES)
 #define ____cacheline_aligned	__aligned(L1_CACHE_BYTES)
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index 6e6fe18..a6ae668 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -208,6 +208,16 @@ atomic64_add_negative (__s64 i, atomic64_t *v)
 #define atomic64_inc(v)			atomic64_add(1, (v))
 #define atomic64_dec(v)			atomic64_sub(1, (v))
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 /* Atomic operations are already serializing */
 #define smp_mb__before_atomic_dec()	barrier()
 #define smp_mb__after_atomic_dec()	barrier()
diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
index 988254a..e1ee885 100644
--- a/arch/ia64/include/asm/cache.h
+++ b/arch/ia64/include/asm/cache.h
@@ -1,6 +1,7 @@
 #ifndef _ASM_IA64_CACHE_H
 #define _ASM_IA64_CACHE_H
 
+#include <linux/const.h>
 
 /*
  * Copyright (C) 1998-2000 Hewlett-Packard Co
@@ -9,7 +10,7 @@
 
 /* Bytes per L1 (data) cache line.  */
 #define L1_CACHE_SHIFT		CONFIG_IA64_L1_CACHE_SHIFT
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #ifdef CONFIG_SMP
 # define SMP_CACHE_SHIFT	L1_CACHE_SHIFT
diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
index 5a83c5c..4d7f553 100644
--- a/arch/ia64/include/asm/elf.h
+++ b/arch/ia64/include/asm/elf.h
@@ -42,6 +42,13 @@
  */
 #define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x800000000UL)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL)
+
+#define PAX_DELTA_MMAP_LEN	(current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
+#define PAX_DELTA_STACK_LEN	(current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
+#endif
+
 #define PT_IA_64_UNWIND		0x70000001
 
 /* IA-64 relocations: */
diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
index 96a8d92..617a1cf 100644
--- a/arch/ia64/include/asm/pgalloc.h
+++ b/arch/ia64/include/asm/pgalloc.h
@@ -39,6 +39,12 @@ pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
 	pgd_val(*pgd_entry) = __pa(pud);
 }
 
+static inline void
+pgd_populate_kernel(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
+{
+	pgd_populate(mm, pgd_entry, pud);
+}
+
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
 	return quicklist_alloc(0, GFP_KERNEL, NULL);
@@ -57,6 +63,12 @@ pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
 	pud_val(*pud_entry) = __pa(pmd);
 }
 
+static inline void
+pud_populate_kernel(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
+{
+	pud_populate(mm, pud_entry, pmd);
+}
+
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
 	return quicklist_alloc(0, GFP_KERNEL, NULL);
diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
index 815810c..d60bd4c 100644
--- a/arch/ia64/include/asm/pgtable.h
+++ b/arch/ia64/include/asm/pgtable.h
@@ -12,7 +12,7 @@
  *	David Mosberger-Tang <davidm@hpl.hp.com>
  */
 
-
+#include <linux/const.h>
 #include <asm/mman.h>
 #include <asm/page.h>
 #include <asm/processor.h>
@@ -142,6 +142,17 @@
 #define PAGE_READONLY	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
 #define PAGE_COPY	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
 #define PAGE_COPY_EXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX)
+
+#ifdef CONFIG_PAX_PAGEEXEC
+# define PAGE_SHARED_NOEXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW)
+# define PAGE_READONLY_NOEXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
+# define PAGE_COPY_NOEXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
+#else
+# define PAGE_SHARED_NOEXEC	PAGE_SHARED
+# define PAGE_READONLY_NOEXEC	PAGE_READONLY
+# define PAGE_COPY_NOEXEC	PAGE_COPY
+#endif
+
 #define PAGE_GATE	__pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX)
 #define PAGE_KERNEL	__pgprot(__DIRTY_BITS  | _PAGE_PL_0 | _PAGE_AR_RWX)
 #define PAGE_KERNELRX	__pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX)
diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
index 54ff557..70c88b7 100644
--- a/arch/ia64/include/asm/spinlock.h
+++ b/arch/ia64/include/asm/spinlock.h
@@ -71,7 +71,7 @@ static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
 	unsigned short	*p = (unsigned short *)&lock->lock + 1, tmp;
 
 	asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p));
-	ACCESS_ONCE(*p) = (tmp + 2) & ~1;
+	ACCESS_ONCE_RW(*p) = (tmp + 2) & ~1;
 }
 
 static __always_inline void __ticket_spin_unlock_wait(arch_spinlock_t *lock)
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index 449c8c0..18965fb 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h
@@ -240,12 +240,24 @@ extern unsigned long __must_check __copy_user (void __user *to, const void __use
 static inline unsigned long
 __copy_to_user (void __user *to, const void *from, unsigned long count)
 {
+	if (count > INT_MAX)
+		return count;
+
+	if (!__builtin_constant_p(count))
+		check_object_size(from, count, true);
+
 	return __copy_user(to, (__force void __user *) from, count);
 }
 
 static inline unsigned long
 __copy_from_user (void *to, const void __user *from, unsigned long count)
 {
+	if (count > INT_MAX)
+		return count;
+
+	if (!__builtin_constant_p(count))
+		check_object_size(to, count, false);
+
 	return __copy_user((__force void __user *) to, from, count);
 }
 
@@ -255,10 +267,13 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
 ({											\
 	void __user *__cu_to = (to);							\
 	const void *__cu_from = (from);							\
-	long __cu_len = (n);								\
+	unsigned long __cu_len = (n);							\
 											\
-	if (__access_ok(__cu_to, __cu_len, get_fs()))					\
+	if (__cu_len <= INT_MAX && __access_ok(__cu_to, __cu_len, get_fs())) {		\
+		if (!__builtin_constant_p(n))						\
+			check_object_size(__cu_from, __cu_len, true);			\
 		__cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len);	\
+	}										\
 	__cu_len;									\
 })
 
@@ -266,11 +281,14 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
 ({											\
 	void *__cu_to = (to);								\
 	const void __user *__cu_from = (from);						\
-	long __cu_len = (n);								\
+	unsigned long __cu_len = (n);							\
 											\
 	__chk_user_ptr(__cu_from);							\
-	if (__access_ok(__cu_from, __cu_len, get_fs()))					\
+	if (__cu_len <= INT_MAX  && __access_ok(__cu_from, __cu_len, get_fs())) {	\
+		if (!__builtin_constant_p(n))						\
+			check_object_size(__cu_to, __cu_len, false);			\
 		__cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len);	\
+	}										\
 	__cu_len;									\
 })
 
diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c
index 2d67317..07d8bfa 100644
--- a/arch/ia64/kernel/err_inject.c
+++ b/arch/ia64/kernel/err_inject.c
@@ -256,7 +256,7 @@ static int __cpuinit err_inject_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata err_inject_cpu_notifier =
+static struct notifier_block err_inject_cpu_notifier =
 {
 	.notifier_call = err_inject_cpu_callback,
 };
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index d7396db..b33e873 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1922,7 +1922,7 @@ static int __cpuinit mca_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block mca_cpu_notifier __cpuinitdata = {
+static struct notifier_block mca_cpu_notifier = {
 	.notifier_call = mca_cpu_callback
 };
 
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 24603be..948052d 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -307,8 +307,7 @@ plt_target (struct plt_entry *plt)
 void
 module_free (struct module *mod, void *module_region)
 {
-	if (mod && mod->arch.init_unw_table &&
-	    module_region == mod->module_init) {
+	if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) {
 		unw_remove_unwind_table(mod->arch.init_unw_table);
 		mod->arch.init_unw_table = NULL;
 	}
@@ -494,15 +493,39 @@ module_frob_arch_sections (Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings,
 }
 
 static inline int
+in_init_rx (const struct module *mod, uint64_t addr)
+{
+	return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx;
+}
+
+static inline int
+in_init_rw (const struct module *mod, uint64_t addr)
+{
+	return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw;
+}
+
+static inline int
 in_init (const struct module *mod, uint64_t addr)
 {
-	return addr - (uint64_t) mod->module_init < mod->init_size;
+	return in_init_rx(mod, addr) || in_init_rw(mod, addr);
+}
+
+static inline int
+in_core_rx (const struct module *mod, uint64_t addr)
+{
+	return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx;
+}
+
+static inline int
+in_core_rw (const struct module *mod, uint64_t addr)
+{
+	return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw;
 }
 
 static inline int
 in_core (const struct module *mod, uint64_t addr)
 {
-	return addr - (uint64_t) mod->module_core < mod->core_size;
+	return in_core_rx(mod, addr) || in_core_rw(mod, addr);
 }
 
 static inline int
@@ -685,7 +708,14 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend,
 		break;
 
 	      case RV_BDREL:
-		val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core);
+		if (in_init_rx(mod, val))
+			val -= (uint64_t) mod->module_init_rx;
+		else if (in_init_rw(mod, val))
+			val -= (uint64_t) mod->module_init_rw;
+		else if (in_core_rx(mod, val))
+			val -= (uint64_t) mod->module_core_rx;
+		else if (in_core_rw(mod, val))
+			val -= (uint64_t) mod->module_core_rw;
 		break;
 
 	      case RV_LTV:
@@ -820,15 +850,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind
 		 *     addresses have been selected...
 		 */
 		uint64_t gp;
-		if (mod->core_size > MAX_LTOFF)
+		if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF)
 			/*
 			 * This takes advantage of fact that SHF_ARCH_SMALL gets allocated
 			 * at the end of the module.
 			 */
-			gp = mod->core_size - MAX_LTOFF / 2;
+			gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2;
 		else
-			gp = mod->core_size / 2;
-		gp = (uint64_t) mod->module_core + ((gp + 7) & -8);
+			gp = (mod->core_size_rx + mod->core_size_rw) / 2;
+		gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8);
 		mod->arch.gp = gp;
 		DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp);
 	}
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
index 79521d5..43dddff 100644
--- a/arch/ia64/kernel/palinfo.c
+++ b/arch/ia64/kernel/palinfo.c
@@ -1006,7 +1006,7 @@ static int __cpuinit palinfo_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata palinfo_cpu_notifier =
+static struct notifier_block palinfo_cpu_notifier =
 {
 	.notifier_call = palinfo_cpu_callback,
 	.priority = 0,
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index aa527d7..f237752 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -616,7 +616,7 @@ salinfo_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu
 	return NOTIFY_OK;
 }
 
-static struct notifier_block salinfo_cpu_notifier __cpuinitdata =
+static struct notifier_block salinfo_cpu_notifier =
 {
 	.notifier_call = salinfo_cpu_callback,
 	.priority = 0,
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index 41e33f8..65180b2 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -28,6 +28,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 	unsigned long align_mask = 0;
 	struct mm_struct *mm = current->mm;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 
 	if (len > RGN_MAP_LIMIT)
 		return -ENOMEM;
@@ -43,6 +44,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 	if (REGION_NUMBER(addr) == RGN_HPAGE)
 		addr = 0;
 #endif
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP)
+		addr = mm->free_area_cache;
+	else
+#endif
+
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
@@ -61,6 +69,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 	info.high_limit = TASK_SIZE;
 	info.align_mask = align_mask;
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index dc00b2c..cce53c2 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -445,7 +445,7 @@ static int __cpuinit cache_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata cache_cpu_notifier =
+static struct notifier_block cache_cpu_notifier =
 {
 	.notifier_call = cache_cpu_callback
 };
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 0ccb28f..8992469 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -198,7 +198,7 @@ SECTIONS {
 	/* Per-cpu data: */
 	. = ALIGN(PERCPU_PAGE_SIZE);
 	PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu)
-	__phys_per_cpu_start = __per_cpu_load;
+	__phys_per_cpu_start = per_cpu_load;
 	/*
 	 * ensure percpu data fits
 	 * into percpu page size
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index 6cf0341..d352594 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned long address)
 	return pte_present(pte);
 }
 
+#ifdef CONFIG_PAX_PAGEEXEC
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 8; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 #	define VM_READ_BIT	0
 #	define VM_WRITE_BIT	1
 #	define VM_EXEC_BIT	2
@@ -149,8 +166,21 @@ retry:
 	if (((isr >> IA64_ISR_R_BIT) & 1UL) && (!(vma->vm_flags & (VM_READ | VM_WRITE))))
 		goto bad_area;
 
-	if ((vma->vm_flags & mask) != mask)
+	if ((vma->vm_flags & mask) != mask) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) {
+			if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip)
+				goto bad_area;
+
+			up_read(&mm->mmap_sem);
+			pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12);
+			do_group_exit(SIGKILL);
+		}
+#endif
+
 		goto bad_area;
+	}
 
 	/*
 	 * If for any reason at all we couldn't handle the fault, make
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index 76069c1..c2aa816 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -149,6 +149,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
 		unsigned long pgoff, unsigned long flags)
 {
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(current->mm, file, flags);
 
 	if (len > RGN_MAP_LIMIT)
 		return -ENOMEM;
@@ -172,6 +173,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
 	info.high_limit = HPAGE_REGION_BASE + RGN_MAP_LIMIT;
 	info.align_mask = PAGE_MASK & (HPAGE_SIZE - 1);
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 20bc967..a26993e 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -120,6 +120,19 @@ ia64_init_addr_space (void)
 		vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
 		vma->vm_end = vma->vm_start + PAGE_SIZE;
 		vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if (current->mm->pax_flags & MF_PAX_PAGEEXEC) {
+			vma->vm_flags &= ~VM_EXEC;
+
+#ifdef CONFIG_PAX_MPROTECT
+			if (current->mm->pax_flags & MF_PAX_MPROTECT)
+				vma->vm_flags &= ~VM_MAYEXEC;
+#endif
+
+		}
+#endif
+
 		vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
 		down_write(&current->mm->mmap_sem);
 		if (insert_vm_struct(current->mm, vma)) {
diff --git a/arch/m32r/include/asm/cache.h b/arch/m32r/include/asm/cache.h
index 40b3ee9..8c2c112 100644
--- a/arch/m32r/include/asm/cache.h
+++ b/arch/m32r/include/asm/cache.h
@@ -1,8 +1,10 @@
 #ifndef _ASM_M32R_CACHE_H
 #define _ASM_M32R_CACHE_H
 
+#include <linux/const.h>
+
 /* L1 cache line size */
 #define L1_CACHE_SHIFT		4
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #endif  /* _ASM_M32R_CACHE_H */
diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c
index 82abd15..d95ae5d 100644
--- a/arch/m32r/lib/usercopy.c
+++ b/arch/m32r/lib/usercopy.c
@@ -14,6 +14,9 @@
 unsigned long
 __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	prefetch(from);
 	if (access_ok(VERIFY_WRITE, to, n))
 		__copy_user(to,from,n);
@@ -23,6 +26,9 @@ __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
 unsigned long
 __generic_copy_from_user(void *to, const void __user *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	prefetchw(to);
 	if (access_ok(VERIFY_READ, from, n))
 		__copy_user_zeroing(to,from,n);
diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h
index 0395c51..5f26031 100644
--- a/arch/m68k/include/asm/cache.h
+++ b/arch/m68k/include/asm/cache.h
@@ -4,9 +4,11 @@
 #ifndef __ARCH_M68K_CACHE_H
 #define __ARCH_M68K_CACHE_H
 
+#include <linux/const.h>
+
 /* bytes per L1 cache line */
 #define        L1_CACHE_SHIFT  4
-#define        L1_CACHE_BYTES  (1<< L1_CACHE_SHIFT)
+#define        L1_CACHE_BYTES  (_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
 
diff --git a/arch/metag/mm/hugetlbpage.c b/arch/metag/mm/hugetlbpage.c
index 3c52fa6..11b2ad8 100644
--- a/arch/metag/mm/hugetlbpage.c
+++ b/arch/metag/mm/hugetlbpage.c
@@ -200,6 +200,7 @@ hugetlb_get_unmapped_area_new_pmd(unsigned long len)
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & HUGEPT_MASK;
 	info.align_offset = 0;
+	info.threadstack_offset = 0;
 	return vm_unmapped_area(&info);
 }
 
diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
index 4efe96a..60e8699 100644
--- a/arch/microblaze/include/asm/cache.h
+++ b/arch/microblaze/include/asm/cache.h
@@ -13,11 +13,12 @@
 #ifndef _ASM_MICROBLAZE_CACHE_H
 #define _ASM_MICROBLAZE_CACHE_H
 
+#include <linux/const.h>
 #include <asm/registers.h>
 
 #define L1_CACHE_SHIFT 5
 /* word-granular cache in microblaze */
-#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES	(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define SMP_CACHE_BYTES	L1_CACHE_BYTES
 
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 08b6079..eb272cf 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -21,6 +21,10 @@
 #include <asm/cmpxchg.h>
 #include <asm/war.h>
 
+#ifdef CONFIG_GENERIC_ATOMIC64
+#include <asm-generic/atomic64.h>
+#endif
+
 #define ATOMIC_INIT(i)	  { (i) }
 
 /*
@@ -759,6 +763,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
  */
 #define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0)
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #endif /* CONFIG_64BIT */
 
 /*
diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
index b4db69f..8f3b093 100644
--- a/arch/mips/include/asm/cache.h
+++ b/arch/mips/include/asm/cache.h
@@ -9,10 +9,11 @@
 #ifndef _ASM_CACHE_H
 #define _ASM_CACHE_H
 
+#include <linux/const.h>
 #include <kmalloc.h>
 
 #define L1_CACHE_SHIFT		CONFIG_MIPS_L1_CACHE_SHIFT
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define SMP_CACHE_SHIFT		L1_CACHE_SHIFT
 #define SMP_CACHE_BYTES		L1_CACHE_BYTES
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
index cf3ae24..238d22f 100644
--- a/arch/mips/include/asm/elf.h
+++ b/arch/mips/include/asm/elf.h
@@ -372,13 +372,16 @@ extern const char *__elf_platform;
 #define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
 #endif
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
+
+#define PAX_DELTA_MMAP_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#define PAX_DELTA_STACK_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#endif
+
 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
 struct linux_binprm;
 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 				       int uses_interp);
 
-struct mm_struct;
-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
-#define arch_randomize_brk arch_randomize_brk
-
 #endif /* _ASM_ELF_H */
diff --git a/arch/mips/include/asm/exec.h b/arch/mips/include/asm/exec.h
index c1f6afa..38cc6e9 100644
--- a/arch/mips/include/asm/exec.h
+++ b/arch/mips/include/asm/exec.h
@@ -12,6 +12,6 @@
 #ifndef _ASM_EXEC_H
 #define _ASM_EXEC_H
 
-extern unsigned long arch_align_stack(unsigned long sp);
+#define arch_align_stack(x) ((x) & ~0xfUL)
 
 #endif /* _ASM_EXEC_H */
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index eab99e5..607c98e 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -96,7 +96,7 @@ extern void copy_user_highpage(struct page *to, struct page *from,
   #ifdef CONFIG_CPU_MIPS32
     typedef struct { unsigned long pte_low, pte_high; } pte_t;
     #define pte_val(x)	  ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
-    #define __pte(x)	  ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
+    #define __pte(x)	  ({ pte_t __pte = {(x), (x) >> 32}; __pte; })
   #else
      typedef struct { unsigned long long pte; } pte_t;
      #define pte_val(x) ((x).pte)
diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index 881d18b..cea38bc 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -37,6 +37,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 {
 	set_pud(pud, __pud((unsigned long)pmd));
 }
+
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_populate(mm, pud, pmd);
+}
 #endif
 
 /*
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 178f792..8ebc510 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -111,6 +111,8 @@ register struct thread_info *__current_thread_info __asm__("$28");
 #define TIF_32BIT_ADDR		23	/* 32-bit address space (o32/n32) */
 #define TIF_FPUBOUND		24	/* thread bound to FPU-full CPU set */
 #define TIF_LOAD_WATCH		25	/* If set, load watch registers */
+/* li takes a 32bit immediate */
+#define TIF_GRSEC_SETXID	29	/* update credentials on syscall entry/exit */
 #define TIF_SYSCALL_TRACE	31	/* syscall trace active */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
@@ -126,15 +128,18 @@ register struct thread_info *__current_thread_info __asm__("$28");
 #define _TIF_32BIT_ADDR		(1<<TIF_32BIT_ADDR)
 #define _TIF_FPUBOUND		(1<<TIF_FPUBOUND)
 #define _TIF_LOAD_WATCH		(1<<TIF_LOAD_WATCH)
+#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
+
+#define _TIF_SYSCALL_WORK	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_GRSEC_SETXID)
 
 /* work to do in syscall_trace_leave() */
-#define _TIF_WORK_SYSCALL_EXIT	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
+#define _TIF_WORK_SYSCALL_EXIT	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_GRSEC_SETXID)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK		\
 	(_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_NOTIFY_RESUME)
 /* work to do on any return to u-space */
-#define _TIF_ALLWORK_MASK	(_TIF_WORK_MASK | _TIF_WORK_SYSCALL_EXIT)
+#define _TIF_ALLWORK_MASK	(_TIF_WORK_MASK | _TIF_WORK_SYSCALL_EXIT | _TIF_GRSEC_SETXID)
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
index e06f777..3244284 100644
--- a/arch/mips/kernel/binfmt_elfn32.c
+++ b/arch/mips/kernel/binfmt_elfn32.c
@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 #undef ELF_ET_DYN_BASE
 #define ELF_ET_DYN_BASE		(TASK32_SIZE / 3 * 2)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
+
+#define PAX_DELTA_MMAP_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#define PAX_DELTA_STACK_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#endif
+
 #include <asm/processor.h>
 #include <linux/module.h>
 #include <linux/elfcore.h>
diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
index 556a435..b4fd2e3 100644
--- a/arch/mips/kernel/binfmt_elfo32.c
+++ b/arch/mips/kernel/binfmt_elfo32.c
@@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 #undef ELF_ET_DYN_BASE
 #define ELF_ET_DYN_BASE		(TASK32_SIZE / 3 * 2)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
+
+#define PAX_DELTA_MMAP_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#define PAX_DELTA_STACK_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#endif
+
 #include <asm/processor.h>
 
 /*
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 3be4405..a799827 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -461,15 +461,3 @@ unsigned long get_wchan(struct task_struct *task)
 out:
 	return pc;
 }
-
-/*
- * Don't forget that the stack pointer must be aligned on a 8 bytes
- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI.
- */
-unsigned long arch_align_stack(unsigned long sp)
-{
-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() & ~PAGE_MASK;
-
-	return sp & ALMASK;
-}
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 9c6299c..2fb4c22 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -528,6 +528,10 @@ static inline int audit_arch(void)
 	return arch;
 }
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern void gr_delayed_cred_worker(void);
+#endif
+
 /*
  * Notification of system call entry/exit
  * - triggered by current->work.syscall_trace
@@ -537,6 +541,11 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 	/* do the secure computing check first */
 	secure_computing_strict(regs->regs[2]);
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	if (!(current->ptrace & PT_PTRACED))
 		goto out;
 
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 9ea2964..c4329c3 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -52,7 +52,7 @@ NESTED(handle_sys, PT_SIZE, sp)
 
 stack_done:
 	lw	t0, TI_FLAGS($28)	# syscall tracing enabled?
-	li	t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
+	li	t1, _TIF_SYSCALL_WORK
 	and	t0, t1
 	bnez	t0, syscall_trace_entry # -> yes
 
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 36cfd40..b1436e0 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -54,7 +54,7 @@ NESTED(handle_sys64, PT_SIZE, sp)
 
 	sd	a3, PT_R26(sp)		# save a3 for syscall restarting
 
-	li	t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
+	li	t1, _TIF_SYSCALL_WORK
 	LONG_L	t0, TI_FLAGS($28)	# syscall tracing enabled?
 	and	t0, t1, t0
 	bnez	t0, syscall_trace_entry
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 693d60b..ae0ba75 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -47,7 +47,7 @@ NESTED(handle_sysn32, PT_SIZE, sp)
 
 	sd	a3, PT_R26(sp)		# save a3 for syscall restarting
 
-	li	t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
+	li	t1, _TIF_SYSCALL_WORK
 	LONG_L	t0, TI_FLAGS($28)	# syscall tracing enabled?
 	and	t0, t1, t0
 	bnez	t0, n32_syscall_trace_entry
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index af8887f..611ccb6 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -81,7 +81,7 @@ NESTED(handle_sys, PT_SIZE, sp)
 	PTR	4b, bad_stack
 	.previous
 
-	li	t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
+	li	t1, _TIF_SYSCALL_WORK
 	LONG_L	t0, TI_FLAGS($28)	# syscall tracing enabled?
 	and	t0, t1, t0
 	bnez	t0, trace_a_syscall
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 0fead53..a2c0fb5 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -27,6 +27,23 @@
 #include <asm/highmem.h>		/* For VMALLOC_END */
 #include <linux/kdebug.h>
 
+#ifdef CONFIG_PAX_PAGEEXEC
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 5; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 /*
  * This routine handles page faults.  It determines the address,
  * and the problem, and then passes it off to one of the appropriate
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index 7e5fe27..9656513 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -59,6 +59,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
 	struct vm_area_struct *vma;
 	unsigned long addr = addr0;
 	int do_color_align;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	if (unlikely(len > TASK_SIZE))
@@ -84,6 +85,11 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
 		do_color_align = 1;
 
 	/* requesting a specific address */
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		if (do_color_align)
 			addr = COLOUR_ALIGN(addr, pgoff);
@@ -91,14 +97,14 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vmm, addr, len, offset))
 			return addr;
 	}
 
 	info.length = len;
 	info.align_mask = do_color_align ? (PAGE_MASK & shm_align_mask) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 
 	if (dir == DOWN) {
 		info.flags = VM_UNMAPPED_AREA_TOPDOWN;
@@ -146,6 +152,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	unsigned long random_factor = 0UL;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (current->flags & PF_RANDOMIZE) {
 		random_factor = get_random_int();
 		random_factor = random_factor << PAGE_SHIFT;
@@ -157,42 +167,27 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area;
 		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base(random_factor);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
-static inline unsigned long brk_rnd(void)
-{
-	unsigned long rnd = get_random_int();
-
-	rnd = rnd << PAGE_SHIFT;
-	/* 8MB for 32bit, 256MB for 64bit */
-	if (TASK_IS_32BIT_ADDR)
-		rnd = rnd & 0x7ffffful;
-	else
-		rnd = rnd & 0xffffffful;
-
-	return rnd;
-}
-
-unsigned long arch_randomize_brk(struct mm_struct *mm)
-{
-	unsigned long base = mm->brk;
-	unsigned long ret;
-
-	ret = PAGE_ALIGN(base + brk_rnd());
-
-	if (ret < mm->brk)
-		return mm->brk;
-
-	return ret;
-}
-
 int __virt_addr_valid(const volatile void *kaddr)
 {
 	return pfn_valid(PFN_DOWN(virt_to_phys(kaddr)));
diff --git a/arch/mn10300/proc-mn103e010/include/proc/cache.h b/arch/mn10300/proc-mn103e010/include/proc/cache.h
index 967d144..db12197 100644
--- a/arch/mn10300/proc-mn103e010/include/proc/cache.h
+++ b/arch/mn10300/proc-mn103e010/include/proc/cache.h
@@ -11,12 +11,14 @@
 #ifndef _ASM_PROC_CACHE_H
 #define _ASM_PROC_CACHE_H
 
+#include <linux/const.h>
+
 /* L1 cache */
 
 #define L1_CACHE_NWAYS		4	/* number of ways in caches */
 #define L1_CACHE_NENTRIES	256	/* number of entries in each way */
-#define L1_CACHE_BYTES		16	/* bytes per entry */
 #define L1_CACHE_SHIFT		4	/* shift for bytes per entry */
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)	/* bytes per entry */
 #define L1_CACHE_WAYDISP	0x1000	/* displacement of one way from the next */
 
 #define L1_CACHE_TAG_VALID	0x00000001	/* cache tag valid bit */
diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
index bcb5df2..84fabd2 100644
--- a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
+++ b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
@@ -16,13 +16,15 @@
 #ifndef _ASM_PROC_CACHE_H
 #define _ASM_PROC_CACHE_H
 
+#include <linux/const.h>
+
 /*
  * L1 cache
  */
 #define L1_CACHE_NWAYS		4		/* number of ways in caches */
 #define L1_CACHE_NENTRIES	128		/* number of entries in each way */
-#define L1_CACHE_BYTES		32		/* bytes per entry */
 #define L1_CACHE_SHIFT		5		/* shift for bytes per entry */
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)	/* bytes per entry */
 #define L1_CACHE_WAYDISP	0x1000		/* distance from one way to the next */
 
 #define L1_CACHE_TAG_VALID	0x00000001	/* cache tag valid bit */
diff --git a/arch/openrisc/include/asm/cache.h b/arch/openrisc/include/asm/cache.h
index 4ce7a01..449202a 100644
--- a/arch/openrisc/include/asm/cache.h
+++ b/arch/openrisc/include/asm/cache.h
@@ -19,11 +19,13 @@
 #ifndef __ASM_OPENRISC_CACHE_H
 #define __ASM_OPENRISC_CACHE_H
 
+#include <linux/const.h>
+
 /* FIXME: How can we replace these with values from the CPU...
  * they shouldn't be hard-coded!
  */
 
-#define L1_CACHE_BYTES 16
 #define L1_CACHE_SHIFT 4
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
 
 #endif /* __ASM_OPENRISC_CACHE_H */
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index f38e198..4179e38 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -229,6 +229,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #endif /* !CONFIG_64BIT */
 
 
diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
index 47f11c7..3420df2 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -5,6 +5,7 @@
 #ifndef __ARCH_PARISC_CACHE_H
 #define __ARCH_PARISC_CACHE_H
 
+#include <linux/const.h>
 
 /*
  * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
@@ -15,13 +16,13 @@
  * just ruin performance.
  */
 #ifdef CONFIG_PA20
-#define L1_CACHE_BYTES 64
 #define L1_CACHE_SHIFT 6
 #else
-#define L1_CACHE_BYTES 32
 #define L1_CACHE_SHIFT 5
 #endif
 
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
+
 #ifndef __ASSEMBLY__
 
 #define SMP_CACHE_BYTES L1_CACHE_BYTES
diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index ad2b503..bdf1651 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -342,6 +342,13 @@ struct pt_regs;	/* forward declaration... */
 
 #define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE + 0x01000000)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	0x10000UL
+
+#define PAX_DELTA_MMAP_LEN	16
+#define PAX_DELTA_STACK_LEN	16
+#endif
+
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This could be done in user space,
    but it's not easy, and we've already done it here.  */
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index fc987a1..6e068ef 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -61,6 +61,11 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
 		        (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
 }
 
+static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+{
+	pgd_populate(mm, pgd, pmd);
+}
+
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 {
 	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
@@ -93,6 +98,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 #define pmd_alloc_one(mm, addr)		({ BUG(); ((pmd_t *)2); })
 #define pmd_free(mm, x)			do { } while (0)
 #define pgd_populate(mm, pmd, pte)	BUG()
+#define pgd_populate_kernel(mm, pmd, pte)	BUG()
 
 #endif
 
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 1e40d7f..a3eb445 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -223,6 +223,17 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long);
 #define PAGE_EXECREAD   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED)
 #define PAGE_COPY       PAGE_EXECREAD
 #define PAGE_RWX        __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
+
+#ifdef CONFIG_PAX_PAGEEXEC
+# define PAGE_SHARED_NOEXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED)
+# define PAGE_COPY_NOEXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
+# define PAGE_READONLY_NOEXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
+#else
+# define PAGE_SHARED_NOEXEC	PAGE_SHARED
+# define PAGE_COPY_NOEXEC	PAGE_COPY
+# define PAGE_READONLY_NOEXEC	PAGE_READONLY
+#endif
+
 #define PAGE_KERNEL	__pgprot(_PAGE_KERNEL)
 #define PAGE_KERNEL_EXEC	__pgprot(_PAGE_KERNEL_EXEC)
 #define PAGE_KERNEL_RWX	__pgprot(_PAGE_KERNEL_RWX)
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index e0a8235..ce2f1e1 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -245,10 +245,10 @@ static inline unsigned long __must_check copy_from_user(void *to,
                                           const void __user *from,
                                           unsigned long n)
 {
-        int sz = __compiletime_object_size(to);
+        size_t sz = __compiletime_object_size(to);
         int ret = -EFAULT;
 
-        if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
+        if (likely(sz == (size_t)-1 || !__builtin_constant_p(n) || sz >= n))
                 ret = __copy_from_user(to, from, n);
         else
                 copy_from_user_overflow();
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 2a625fb..9908930 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -98,16 +98,38 @@
 
 /* three functions to determine where in the module core
  * or init pieces the location is */
+static inline int in_init_rx(struct module *me, void *loc)
+{
+	return (loc >= me->module_init_rx &&
+		loc < (me->module_init_rx + me->init_size_rx));
+}
+
+static inline int in_init_rw(struct module *me, void *loc)
+{
+	return (loc >= me->module_init_rw &&
+		loc < (me->module_init_rw + me->init_size_rw));
+}
+
 static inline int in_init(struct module *me, void *loc)
 {
-	return (loc >= me->module_init &&
-		loc <= (me->module_init + me->init_size));
+	return in_init_rx(me, loc) || in_init_rw(me, loc);
+}
+
+static inline int in_core_rx(struct module *me, void *loc)
+{
+	return (loc >= me->module_core_rx &&
+		loc < (me->module_core_rx + me->core_size_rx));
+}
+
+static inline int in_core_rw(struct module *me, void *loc)
+{
+	return (loc >= me->module_core_rw &&
+		loc < (me->module_core_rw + me->core_size_rw));
 }
 
 static inline int in_core(struct module *me, void *loc)
 {
-	return (loc >= me->module_core &&
-		loc <= (me->module_core + me->core_size));
+	return in_core_rx(me, loc) || in_core_rw(me, loc);
 }
 
 static inline int in_local(struct module *me, void *loc)
@@ -371,13 +393,13 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 	}
 
 	/* align things a bit */
-	me->core_size = ALIGN(me->core_size, 16);
-	me->arch.got_offset = me->core_size;
-	me->core_size += gots * sizeof(struct got_entry);
+	me->core_size_rw = ALIGN(me->core_size_rw, 16);
+	me->arch.got_offset = me->core_size_rw;
+	me->core_size_rw += gots * sizeof(struct got_entry);
 
-	me->core_size = ALIGN(me->core_size, 16);
-	me->arch.fdesc_offset = me->core_size;
-	me->core_size += fdescs * sizeof(Elf_Fdesc);
+	me->core_size_rw = ALIGN(me->core_size_rw, 16);
+	me->arch.fdesc_offset = me->core_size_rw;
+	me->core_size_rw += fdescs * sizeof(Elf_Fdesc);
 
 	me->arch.got_max = gots;
 	me->arch.fdesc_max = fdescs;
@@ -395,7 +417,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
 
 	BUG_ON(value == 0);
 
-	got = me->module_core + me->arch.got_offset;
+	got = me->module_core_rw + me->arch.got_offset;
 	for (i = 0; got[i].addr; i++)
 		if (got[i].addr == value)
 			goto out;
@@ -413,7 +435,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
 #ifdef CONFIG_64BIT
 static Elf_Addr get_fdesc(struct module *me, unsigned long value)
 {
-	Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset;
+	Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset;
 
 	if (!value) {
 		printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
@@ -431,7 +453,7 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
 
 	/* Create new one */
 	fdesc->addr = value;
-	fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
+	fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
 	return (Elf_Addr)fdesc;
 }
 #endif /* CONFIG_64BIT */
@@ -843,7 +865,7 @@ register_unwind_table(struct module *me,
 
 	table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr;
 	end = table + sechdrs[me->arch.unwind_section].sh_size;
-	gp = (Elf_Addr)me->module_core + me->arch.got_offset;
+	gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
 
 	DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n",
 	       me->arch.unwind_section, table, end, gp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 5dfd248..64914ac 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -33,9 +33,11 @@
 #include <linux/utsname.h>
 #include <linux/personality.h>
 
-static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
+static unsigned long get_unshared_area(struct file *filp, unsigned long addr, unsigned long len,
+					unsigned long flags)
 {
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
 
 	info.flags = 0;
 	info.length = len;
@@ -43,6 +45,7 @@ static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
 	info.high_limit = TASK_SIZE;
 	info.align_mask = 0;
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
@@ -61,10 +64,11 @@ static int get_offset(struct address_space *mapping)
 	return (unsigned long) mapping >> 8;
 }
 
-static unsigned long get_shared_area(struct address_space *mapping,
-		unsigned long addr, unsigned long len, unsigned long pgoff)
+static unsigned long get_shared_area(struct file *filp, struct address_space *mapping,
+		unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags)
 {
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
 
 	info.flags = 0;
 	info.length = len;
@@ -72,6 +76,7 @@ static unsigned long get_shared_area(struct address_space *mapping,
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & (SHMLBA - 1);
 	info.align_offset = (get_offset(mapping) + pgoff) << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
@@ -86,15 +91,22 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 			return -EINVAL;
 		return addr;
 	}
-	if (!addr)
+	if (!addr) {
 		addr = TASK_UNMAPPED_BASE;
 
+#ifdef CONFIG_PAX_RANDMMAP
+		if (current->mm->pax_flags & MF_PAX_RANDMMAP)
+			addr += current->mm->delta_mmap;
+#endif
+
+	}
+
 	if (filp) {
-		addr = get_shared_area(filp->f_mapping, addr, len, pgoff);
+		addr = get_shared_area(filp, filp->f_mapping, addr, len, pgoff, flags);
 	} else if(flags & MAP_SHARED) {
-		addr = get_shared_area(NULL, addr, len, pgoff);
+		addr = get_shared_area(filp, NULL, addr, len, pgoff, flags);
 	} else {
-		addr = get_unshared_area(addr, len);
+		addr = get_unshared_area(filp, addr, len, flags);
 	}
 	return addr;
 }
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index aeb8f8f..27a6c2f 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -732,9 +732,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 
 			down_read(&current->mm->mmap_sem);
 			vma = find_vma(current->mm,regs->iaoq[0]);
-			if (vma && (regs->iaoq[0] >= vma->vm_start)
-				&& (vma->vm_flags & VM_EXEC)) {
-
+			if (vma && (regs->iaoq[0] >= vma->vm_start)) {
 				fault_address = regs->iaoq[0];
 				fault_space = regs->iasq[0];
 
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index f247a34..dc0f219 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -15,6 +15,7 @@
 #include <linux/sched.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
+#include <linux/unistd.h>
 
 #include <asm/uaccess.h>
 #include <asm/traps.h>
@@ -52,7 +53,7 @@ DEFINE_PER_CPU(struct exception_data, exception_data);
 static unsigned long
 parisc_acctyp(unsigned long code, unsigned int inst)
 {
-	if (code == 6 || code == 16)
+	if (code == 6 || code == 7 || code == 16)
 	    return VM_EXEC;
 
 	switch (inst & 0xf0000000) {
@@ -138,6 +139,116 @@ parisc_acctyp(unsigned long code, unsigned int inst)
 			}
 #endif
 
+#ifdef CONFIG_PAX_PAGEEXEC
+/*
+ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address)
+ *
+ * returns 1 when task should be killed
+ *         2 when rt_sigreturn trampoline was detected
+ *         3 when unpatched PLT trampoline was detected
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+
+#ifdef CONFIG_PAX_EMUPLT
+	int err;
+
+	do { /* PaX: unpatched PLT emulation */
+		unsigned int bl, depwi;
+
+		err = get_user(bl, (unsigned int *)instruction_pointer(regs));
+		err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4));
+
+		if (err)
+			break;
+
+		if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) {
+			unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12;
+
+			err = get_user(ldw, (unsigned int *)addr);
+			err |= get_user(bv, (unsigned int *)(addr+4));
+			err |= get_user(ldw2, (unsigned int *)(addr+8));
+
+			if (err)
+				break;
+
+			if (ldw == 0x0E801096U &&
+			    bv == 0xEAC0C000U &&
+			    ldw2 == 0x0E881095U)
+			{
+				unsigned int resolver, map;
+
+				err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8));
+				err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12));
+				if (err)
+					break;
+
+				regs->gr[20] = instruction_pointer(regs)+8;
+				regs->gr[21] = map;
+				regs->gr[22] = resolver;
+				regs->iaoq[0] = resolver | 3UL;
+				regs->iaoq[1] = regs->iaoq[0] + 4;
+				return 3;
+			}
+		}
+	} while (0);
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+
+#ifndef CONFIG_PAX_EMUSIGRT
+	if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
+		return 1;
+#endif
+
+	do { /* PaX: rt_sigreturn emulation */
+		unsigned int ldi1, ldi2, bel, nop;
+
+		err = get_user(ldi1, (unsigned int *)instruction_pointer(regs));
+		err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4));
+		err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8));
+		err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12));
+
+		if (err)
+			break;
+
+		if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) &&
+		    ldi2 == 0x3414015AU &&
+		    bel == 0xE4008200U &&
+		    nop == 0x08000240U)
+		{
+			regs->gr[25] = (ldi1 & 2) >> 1;
+			regs->gr[20] = __NR_rt_sigreturn;
+			regs->gr[31] = regs->iaoq[1] + 16;
+			regs->sr[0] = regs->iasq[1];
+			regs->iaoq[0] = 0x100UL;
+			regs->iaoq[1] = regs->iaoq[0] + 4;
+			regs->iasq[0] = regs->sr[2];
+			regs->iasq[1] = regs->sr[2];
+			return 2;
+		}
+	} while (0);
+#endif
+
+	return 1;
+}
+
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 5; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 int fixup_exception(struct pt_regs *regs)
 {
 	const struct exception_table_entry *fix;
@@ -194,8 +305,33 @@ good_area:
 
 	acc_type = parisc_acctyp(code,regs->iir);
 
-	if ((vma->vm_flags & acc_type) != acc_type)
+	if ((vma->vm_flags & acc_type) != acc_type) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) &&
+		    (address & ~3UL) == instruction_pointer(regs))
+		{
+			up_read(&mm->mmap_sem);
+			switch (pax_handle_fetch_fault(regs)) {
+
+#ifdef CONFIG_PAX_EMUPLT
+			case 3:
+				return;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+			case 2:
+				return;
+#endif
+
+			}
+			pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]);
+			do_group_exit(SIGKILL);
+		}
+#endif
+
 		goto bad_area;
+	}
 
 	/*
 	 * If for any reason at all we couldn't handle the fault, make
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index e3b1d41..8e81edf 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -523,6 +523,16 @@ static __inline__ long atomic64_inc_not_zero(atomic64_t *v)
 	return t1;
 }
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #endif /* __powerpc64__ */
 
 #endif /* __KERNEL__ */
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index 9e495c9..b6878e5 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h
@@ -3,6 +3,7 @@
 
 #ifdef __KERNEL__
 
+#include <linux/const.h>
 
 /* bytes per L1 cache line */
 #if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
@@ -22,7 +23,7 @@
 #define L1_CACHE_SHIFT		7
 #endif
 
-#define	L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define	L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define	SMP_CACHE_BYTES		L1_CACHE_BYTES
 
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index ac9790f..6d30741 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -28,8 +28,19 @@
    the loader.  We need to make sure that it is out of the way of the program
    that it will "exec", and that there is sufficient room for the brk.  */
 
-extern unsigned long randomize_et_dyn(unsigned long base);
-#define ELF_ET_DYN_BASE		(randomize_et_dyn(0x20000000))
+#define ELF_ET_DYN_BASE		(0x20000000)
+
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(0x10000000UL)
+
+#ifdef __powerpc64__
+#define PAX_DELTA_MMAP_LEN	(is_32bit_task() ? 16 : 28)
+#define PAX_DELTA_STACK_LEN	(is_32bit_task() ? 16 : 28)
+#else
+#define PAX_DELTA_MMAP_LEN	15
+#define PAX_DELTA_STACK_LEN	15
+#endif
+#endif
 
 /*
  * Our registers are always unsigned longs, whether we're a 32 bit
@@ -122,10 +133,6 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 	(0x7ff >> (PAGE_SHIFT - 12)) : \
 	(0x3ffff >> (PAGE_SHIFT - 12)))
 
-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
-#define arch_randomize_brk arch_randomize_brk
-
-
 #ifdef CONFIG_SPU_BASE
 /* Notes used in ET_CORE. Note name is "SPU/<fd>/<filename>". */
 #define NT_SPU		1
diff --git a/arch/powerpc/include/asm/exec.h b/arch/powerpc/include/asm/exec.h
index 8196e9c..d83a9f3 100644
--- a/arch/powerpc/include/asm/exec.h
+++ b/arch/powerpc/include/asm/exec.h
@@ -4,6 +4,6 @@
 #ifndef _ASM_POWERPC_EXEC_H
 #define _ASM_POWERPC_EXEC_H
 
-extern unsigned long arch_align_stack(unsigned long sp);
+#define arch_align_stack(x) ((x) & ~0xfUL)
 
 #endif /* _ASM_POWERPC_EXEC_H */
diff --git a/arch/powerpc/include/asm/kmap_types.h b/arch/powerpc/include/asm/kmap_types.h
index 5acabbd..7ea14fa 100644
--- a/arch/powerpc/include/asm/kmap_types.h
+++ b/arch/powerpc/include/asm/kmap_types.h
@@ -10,7 +10,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-#define KM_TYPE_NR 16
+#define KM_TYPE_NR 17
 
 #endif	/* __KERNEL__ */
 #endif	/* _ASM_POWERPC_KMAP_TYPES_H */
diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h
index 8565c25..2865190 100644
--- a/arch/powerpc/include/asm/mman.h
+++ b/arch/powerpc/include/asm/mman.h
@@ -24,7 +24,7 @@ static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot)
 }
 #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot)
 
-static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags)
+static inline pgprot_t arch_vm_get_page_prot(vm_flags_t vm_flags)
 {
 	return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0);
 }
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index f072e97..b436dee 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -220,8 +220,9 @@ extern long long virt_phys_offset;
  * and needs to be executable.  This means the whole heap ends
  * up being executable.
  */
-#define VM_DATA_DEFAULT_FLAGS32	(VM_READ | VM_WRITE | VM_EXEC | \
-				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define VM_DATA_DEFAULT_FLAGS32 \
+	(((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
+	 VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
 #define VM_DATA_DEFAULT_FLAGS64	(VM_READ | VM_WRITE | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
@@ -249,6 +250,9 @@ extern long long virt_phys_offset;
 #define is_kernel_addr(x)	((x) >= PAGE_OFFSET)
 #endif
 
+#define ktla_ktva(addr)		(addr)
+#define ktva_ktla(addr)		(addr)
+
 /*
  * Use the top bit of the higher-level page table entries to indicate whether
  * the entries we point to contain hugepages.  This works because we know that
diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
index cd915d6..c10cee8 100644
--- a/arch/powerpc/include/asm/page_64.h
+++ b/arch/powerpc/include/asm/page_64.h
@@ -154,15 +154,18 @@ do {						\
  * stack by default, so in the absence of a PT_GNU_STACK program header
  * we turn execute permission off.
  */
-#define VM_STACK_DEFAULT_FLAGS32	(VM_READ | VM_WRITE | VM_EXEC | \
-					 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define VM_STACK_DEFAULT_FLAGS32 \
+	(((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
+	 VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
 #define VM_STACK_DEFAULT_FLAGS64	(VM_READ | VM_WRITE | \
 					 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
+#ifndef CONFIG_PAX_PAGEEXEC
 #define VM_STACK_DEFAULT_FLAGS \
 	(is_32bit_task() ? \
 	 VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64)
+#endif
 
 #include <asm-generic/getorder.h>
 
diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
index 292725c..f87ae14 100644
--- a/arch/powerpc/include/asm/pgalloc-64.h
+++ b/arch/powerpc/include/asm/pgalloc-64.h
@@ -50,6 +50,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 #ifndef CONFIG_PPC_64K_PAGES
 
 #define pgd_populate(MM, PGD, PUD)	pgd_set(PGD, PUD)
+#define pgd_populate_kernel(MM, PGD, PUD)	pgd_populate((MM), (PGD), (PUD))
 
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
@@ -67,6 +68,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 	pud_set(pud, (unsigned long)pmd);
 }
 
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_populate(mm, pud, pmd);
+}
+
 #define pmd_populate(mm, pmd, pte_page) \
 	pmd_populate_kernel(mm, pmd, page_address(pte_page))
 #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte))
@@ -76,6 +82,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 #else /* CONFIG_PPC_64K_PAGES */
 
 #define pud_populate(mm, pud, pmd)	pud_set(pud, (unsigned long)pmd)
+#define pud_populate_kernel(mm, pud, pmd)	pud_populate((mm), (pud), (pmd))
 
 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
 				       pte_t *pte)
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index a9cbd3b..3b67efa 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -2,6 +2,7 @@
 #define _ASM_POWERPC_PGTABLE_H
 #ifdef __KERNEL__
 
+#include <linux/const.h>
 #ifndef __ASSEMBLY__
 #include <asm/processor.h>		/* For TASK_SIZE */
 #include <asm/mmu.h>
diff --git a/arch/powerpc/include/asm/pte-hash32.h b/arch/powerpc/include/asm/pte-hash32.h
index 4aad413..85d86bf 100644
--- a/arch/powerpc/include/asm/pte-hash32.h
+++ b/arch/powerpc/include/asm/pte-hash32.h
@@ -21,6 +21,7 @@
 #define _PAGE_FILE	0x004	/* when !present: nonlinear file mapping */
 #define _PAGE_USER	0x004	/* usermode access allowed */
 #define _PAGE_GUARDED	0x008	/* G: prohibit speculative access */
+#define _PAGE_EXEC	_PAGE_GUARDED
 #define _PAGE_COHERENT	0x010	/* M: enforce memory coherence (SMP systems) */
 #define _PAGE_NO_CACHE	0x020	/* I: cache inhibit */
 #define _PAGE_WRITETHRU	0x040	/* W: cache write-through */
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index c9c67fc..e10c012 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -245,6 +245,7 @@
 #define SPRN_DBCR	0x136	/* e300 Data Breakpoint Control Reg */
 #define SPRN_DSISR	0x012	/* Data Storage Interrupt Status Register */
 #define   DSISR_NOHPTE		0x40000000	/* no translation found */
+#define   DSISR_GUARDED		0x10000000	/* fetch from guarded storage */
 #define   DSISR_PROTFAULT	0x08000000	/* protection fault */
 #define   DSISR_ISSTORE		0x02000000	/* access was a store */
 #define   DSISR_DABRMATCH	0x00400000	/* hit data breakpoint */
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
index 195ce2a..ab5c614 100644
--- a/arch/powerpc/include/asm/smp.h
+++ b/arch/powerpc/include/asm/smp.h
@@ -50,7 +50,7 @@ struct smp_ops_t {
 	int   (*cpu_disable)(void);
 	void  (*cpu_die)(unsigned int nr);
 	int   (*cpu_bootable)(unsigned int nr);
-};
+} __no_const;
 
 extern void smp_send_debugger_break(void);
 extern void start_secondary_resume(void);
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index 406b7b9..af63426 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -97,7 +97,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_PERFMON_CTXSW	6	/* perfmon needs ctxsw calls */
 #define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
 #define TIF_SINGLESTEP		8	/* singlestepping active */
-#define TIF_MEMDIE		9	/* is terminating due to OOM killer */
 #define TIF_SECCOMP		10	/* secure computing */
 #define TIF_RESTOREALL		11	/* Restore all regs (implies NOERROR) */
 #define TIF_NOERROR		12	/* Force successful syscall return */
@@ -106,6 +105,9 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SYSCALL_TRACEPOINT	15	/* syscall tracepoint instrumentation */
 #define TIF_EMULATE_STACK_STORE	16	/* Is an instruction emulation
 						for stack store? */
+#define TIF_MEMDIE		17	/* is terminating due to OOM killer */
+/* mask must be expressable within 16 bits to satisfy 'andi' instruction reqs */
+#define TIF_GRSEC_SETXID	9	/* update credentials on syscall entry/exit */
 
 /* as above, but as bit values */
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
@@ -124,8 +126,10 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_UPROBE		(1<<TIF_UPROBE)
 #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
 #define _TIF_EMULATE_STACK_STORE	(1<<TIF_EMULATE_STACK_STORE)
+#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
 #define _TIF_SYSCALL_T_OR_A	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
-				 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT)
+				 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT | \
+				 _TIF_GRSEC_SETXID)
 
 #define _TIF_USER_WORK_MASK	(_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
 				 _TIF_NOTIFY_RESUME | _TIF_UPROBE)
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index 4db4959..aba5c41 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -318,52 +318,6 @@ do {								\
 extern unsigned long __copy_tofrom_user(void __user *to,
 		const void __user *from, unsigned long size);
 
-#ifndef __powerpc64__
-
-static inline unsigned long copy_from_user(void *to,
-		const void __user *from, unsigned long n)
-{
-	unsigned long over;
-
-	if (access_ok(VERIFY_READ, from, n))
-		return __copy_tofrom_user((__force void __user *)to, from, n);
-	if ((unsigned long)from < TASK_SIZE) {
-		over = (unsigned long)from + n - TASK_SIZE;
-		return __copy_tofrom_user((__force void __user *)to, from,
-				n - over) + over;
-	}
-	return n;
-}
-
-static inline unsigned long copy_to_user(void __user *to,
-		const void *from, unsigned long n)
-{
-	unsigned long over;
-
-	if (access_ok(VERIFY_WRITE, to, n))
-		return __copy_tofrom_user(to, (__force void __user *)from, n);
-	if ((unsigned long)to < TASK_SIZE) {
-		over = (unsigned long)to + n - TASK_SIZE;
-		return __copy_tofrom_user(to, (__force void __user *)from,
-				n - over) + over;
-	}
-	return n;
-}
-
-#else /* __powerpc64__ */
-
-#define __copy_in_user(to, from, size) \
-	__copy_tofrom_user((to), (from), (size))
-
-extern unsigned long copy_from_user(void *to, const void __user *from,
-				    unsigned long n);
-extern unsigned long copy_to_user(void __user *to, const void *from,
-				  unsigned long n);
-extern unsigned long copy_in_user(void __user *to, const void __user *from,
-				  unsigned long n);
-
-#endif /* __powerpc64__ */
-
 static inline unsigned long __copy_from_user_inatomic(void *to,
 		const void __user *from, unsigned long n)
 {
@@ -387,6 +341,10 @@ static inline unsigned long __copy_from_user_inatomic(void *to,
 		if (ret == 0)
 			return 0;
 	}
+
+	if (!__builtin_constant_p(n))
+		check_object_size(to, n, false);
+
 	return __copy_tofrom_user((__force void __user *)to, from, n);
 }
 
@@ -413,6 +371,10 @@ static inline unsigned long __copy_to_user_inatomic(void __user *to,
 		if (ret == 0)
 			return 0;
 	}
+
+	if (!__builtin_constant_p(n))
+		check_object_size(from, n, true);
+
 	return __copy_tofrom_user(to, (__force const void __user *)from, n);
 }
 
@@ -430,6 +392,92 @@ static inline unsigned long __copy_to_user(void __user *to,
 	return __copy_to_user_inatomic(to, from, size);
 }
 
+#ifndef __powerpc64__
+
+static inline unsigned long __must_check copy_from_user(void *to,
+		const void __user *from, unsigned long n)
+{
+	unsigned long over;
+
+	if ((long)n < 0)
+		return n;
+
+	if (access_ok(VERIFY_READ, from, n)) {
+		if (!__builtin_constant_p(n))
+			check_object_size(to, n, false);
+		return __copy_tofrom_user((__force void __user *)to, from, n);
+	}
+	if ((unsigned long)from < TASK_SIZE) {
+		over = (unsigned long)from + n - TASK_SIZE;
+		if (!__builtin_constant_p(n - over))
+			check_object_size(to, n - over, false);
+		return __copy_tofrom_user((__force void __user *)to, from,
+				n - over) + over;
+	}
+	return n;
+}
+
+static inline unsigned long __must_check copy_to_user(void __user *to,
+		const void *from, unsigned long n)
+{
+	unsigned long over;
+
+	if ((long)n < 0)
+		return n;
+
+	if (access_ok(VERIFY_WRITE, to, n)) {
+		if (!__builtin_constant_p(n))
+			check_object_size(from, n, true);
+		return __copy_tofrom_user(to, (__force void __user *)from, n);
+	}
+	if ((unsigned long)to < TASK_SIZE) {
+		over = (unsigned long)to + n - TASK_SIZE;
+		if (!__builtin_constant_p(n))
+			check_object_size(from, n - over, true);
+		return __copy_tofrom_user(to, (__force void __user *)from,
+				n - over) + over;
+	}
+	return n;
+}
+
+#else /* __powerpc64__ */
+
+#define __copy_in_user(to, from, size) \
+	__copy_tofrom_user((to), (from), (size))
+
+static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+	if ((long)n < 0 || n > INT_MAX)
+		return n;
+
+	if (!__builtin_constant_p(n))
+		check_object_size(to, n, false);
+
+	if (likely(access_ok(VERIFY_READ, from, n)))
+		n = __copy_from_user(to, from, n);
+	else
+		memset(to, 0, n);
+	return n;
+}
+
+static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+	if ((long)n < 0 || n > INT_MAX)
+		return n;
+
+	if (likely(access_ok(VERIFY_WRITE, to, n))) {
+		if (!__builtin_constant_p(n))
+			check_object_size(from, n, true);
+		n = __copy_to_user(to, from, n);
+	}
+	return n;
+}
+
+extern unsigned long copy_in_user(void __user *to, const void __user *from,
+				  unsigned long n);
+
+#endif /* __powerpc64__ */
+
 extern unsigned long __clear_user(void __user *addr, unsigned long size);
 
 static inline unsigned long clear_user(void __user *addr, unsigned long size)
diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index ae54553..cf2184d 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -716,6 +716,7 @@ storage_fault_common:
 	std	r14,_DAR(r1)
 	std	r15,_DSISR(r1)
 	addi	r3,r1,STACK_FRAME_OVERHEAD
+	bl	.save_nvgprs
 	mr	r4,r14
 	mr	r5,r15
 	ld	r14,PACA_EXGEN+EX_R14(r13)
@@ -724,8 +725,7 @@ storage_fault_common:
 	cmpdi	r3,0
 	bne-	1f
 	b	.ret_from_except_lite
-1:	bl	.save_nvgprs
-	mr	r5,r3
+1:	mr	r5,r3
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	ld	r4,_DAR(r1)
 	bl	.bad_page_fault
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 3bbe7ed..14ec3eb 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1390,10 +1390,10 @@ handle_page_fault:
 11:	ld	r4,_DAR(r1)
 	ld	r5,_DSISR(r1)
 	addi	r3,r1,STACK_FRAME_OVERHEAD
+	bl	.save_nvgprs
 	bl	.do_page_fault
 	cmpdi	r3,0
 	beq+	12f
-	bl	.save_nvgprs
 	mr	r5,r3
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	lwz	r4,_DAR(r1)
diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
index 2e3200c..72095ce 100644
--- a/arch/powerpc/kernel/module_32.c
+++ b/arch/powerpc/kernel/module_32.c
@@ -162,7 +162,7 @@ int module_frob_arch_sections(Elf32_Ehdr *hdr,
 			me->arch.core_plt_section = i;
 	}
 	if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
-		printk("Module doesn't contain .plt or .init.plt sections.\n");
+		printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name);
 		return -ENOEXEC;
 	}
 
@@ -192,11 +192,16 @@ static uint32_t do_plt_call(void *location,
 
 	DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
 	/* Init, or core PLT? */
-	if (location >= mod->module_core
-	    && location < mod->module_core + mod->core_size)
+	if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) ||
+	    (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw))
 		entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
-	else
+	else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) ||
+		 (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw))
 		entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
+	else {
+		printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name);
+		return ~0UL;
+	}
 
 	/* Find this entry, or if that fails, the next avail. entry */
 	while (entry->jump[0]) {
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 16e77a8..4501b41 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -870,8 +870,8 @@ void show_regs(struct pt_regs * regs)
 	 * Lookup NIP late so we have the best change of getting the
 	 * above info out without failing
 	 */
-	printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
-	printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
+	printk("NIP ["REG"] %pA\n", regs->nip, (void *)regs->nip);
+	printk("LR ["REG"] %pA\n", regs->link, (void *)regs->link);
 #endif
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 	printk("PACATMSCRATCH [%llx]\n", get_paca()->tm_scratch);
@@ -1330,10 +1330,10 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
 		newsp = stack[0];
 		ip = stack[STACK_FRAME_LR_SAVE];
 		if (!firstframe || ip != lr) {
-			printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip);
+			printk("["REG"] ["REG"] %pA", sp, ip, (void *)ip);
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 			if ((ip == rth || ip == mrth) && curr_frame >= 0) {
-				printk(" (%pS)",
+				printk(" (%pA)",
 				       (void *)current->ret_stack[curr_frame].ret);
 				curr_frame--;
 			}
@@ -1353,7 +1353,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
 			struct pt_regs *regs = (struct pt_regs *)
 				(sp + STACK_FRAME_OVERHEAD);
 			lr = regs->link;
-			printk("--- Exception: %lx at %pS\n    LR = %pS\n",
+			printk("--- Exception: %lx at %pA\n    LR = %pA\n",
 			       regs->trap, (void *)regs->nip, (void *)lr);
 			firstframe = 1;
 		}
@@ -1395,58 +1395,3 @@ void __ppc64_runlatch_off(void)
 	mtspr(SPRN_CTRLT, ctrl);
 }
 #endif /* CONFIG_PPC64 */
-
-unsigned long arch_align_stack(unsigned long sp)
-{
-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() & ~PAGE_MASK;
-	return sp & ~0xf;
-}
-
-static inline unsigned long brk_rnd(void)
-{
-        unsigned long rnd = 0;
-
-	/* 8MB for 32bit, 1GB for 64bit */
-	if (is_32bit_task())
-		rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT)));
-	else
-		rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT)));
-
-	return rnd << PAGE_SHIFT;
-}
-
-unsigned long arch_randomize_brk(struct mm_struct *mm)
-{
-	unsigned long base = mm->brk;
-	unsigned long ret;
-
-#ifdef CONFIG_PPC_STD_MMU_64
-	/*
-	 * If we are using 1TB segments and we are allowed to randomise
-	 * the heap, we can put it above 1TB so it is backed by a 1TB
-	 * segment. Otherwise the heap will be in the bottom 1TB
-	 * which always uses 256MB segments and this may result in a
-	 * performance penalty.
-	 */
-	if (!is_32bit_task() && (mmu_highuser_ssize == MMU_SEGSIZE_1T))
-		base = max_t(unsigned long, mm->brk, 1UL << SID_SHIFT_1T);
-#endif
-
-	ret = PAGE_ALIGN(base + brk_rnd());
-
-	if (ret < mm->brk)
-		return mm->brk;
-
-	return ret;
-}
-
-unsigned long randomize_et_dyn(unsigned long base)
-{
-	unsigned long ret = PAGE_ALIGN(base + brk_rnd());
-
-	if (ret < base)
-		return base;
-
-	return ret;
-}
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index f9b30c6..d72e7a3 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -1771,6 +1771,10 @@ long arch_ptrace(struct task_struct *child, long request,
 	return ret;
 }
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern void gr_delayed_cred_worker(void);
+#endif
+
 /*
  * We must return the syscall number to actually look up in the table.
  * This can be -1L to skip running any syscall at all.
@@ -1781,6 +1785,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 
 	secure_computing_strict(regs->gpr[0]);
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
 	    tracehook_report_syscall_entry(regs))
 		/*
@@ -1815,6 +1824,11 @@ void do_syscall_trace_leave(struct pt_regs *regs)
 {
 	int step;
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	audit_syscall_exit(regs);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 95068bf..9ba1814 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -982,7 +982,7 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
 	/* Save user registers on the stack */
 	frame = &rt_sf->uc.uc_mcontext;
 	addr = frame;
-	if (vdso32_rt_sigtramp && current->mm->context.vdso_base) {
+	if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
 		sigret = 0;
 		tramp = current->mm->context.vdso_base + vdso32_rt_sigtramp;
 	} else {
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index c179428..58acdaa 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -758,7 +758,7 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
 #endif
 
 	/* Set up to return from userspace. */
-	if (vdso64_rt_sigtramp && current->mm->context.vdso_base) {
+	if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
 		regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;
 	} else {
 		err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]);
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 3ce1f86..c30e629 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -522,7 +522,7 @@ static int __cpuinit sysfs_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata sysfs_cpu_nb = {
+static struct notifier_block sysfs_cpu_nb = {
 	.notifier_call	= sysfs_cpu_notify,
 };
 
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 83efa2f..6bb5839 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -141,6 +141,8 @@ static unsigned __kprobes long oops_begin(struct pt_regs *regs)
 	return flags;
 }
 
+extern void gr_handle_kernel_exploit(void);
+
 static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
 			       int signr)
 {
@@ -190,6 +192,9 @@ static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
 		panic("Fatal exception in interrupt");
 	if (panic_on_oops)
 		panic("Fatal exception");
+
+	gr_handle_kernel_exploit();
+
 	do_exit(signr);
 }
 
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 1b2076f..835e4be 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -34,6 +34,7 @@
 #include <asm/firmware.h>
 #include <asm/vdso.h>
 #include <asm/vdso_datapage.h>
+#include <asm/mman.h>
 
 #include "setup.h"
 
@@ -218,7 +219,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	vdso_base = VDSO32_MBASE;
 #endif
 
-	current->mm->context.vdso_base = 0;
+	current->mm->context.vdso_base = ~0UL;
 
 	/* vDSO has a problem and was disabled, just don't "enable" it for the
 	 * process
@@ -238,7 +239,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	vdso_base = get_unmapped_area(NULL, vdso_base,
 				      (vdso_pages << PAGE_SHIFT) +
 				      ((VDSO_ALIGNMENT - 1) & PAGE_MASK),
-				      0, 0);
+				      0, MAP_PRIVATE | MAP_EXECUTABLE);
 	if (IS_ERR_VALUE(vdso_base)) {
 		rc = vdso_base;
 		goto fail_mmapsem;
diff --git a/arch/powerpc/lib/usercopy_64.c b/arch/powerpc/lib/usercopy_64.c
index 5eea6f3..5d10396 100644
--- a/arch/powerpc/lib/usercopy_64.c
+++ b/arch/powerpc/lib/usercopy_64.c
@@ -9,22 +9,6 @@
 #include <linux/module.h>
 #include <asm/uaccess.h>
 
-unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
-{
-	if (likely(access_ok(VERIFY_READ, from, n)))
-		n = __copy_from_user(to, from, n);
-	else
-		memset(to, 0, n);
-	return n;
-}
-
-unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
-{
-	if (likely(access_ok(VERIFY_WRITE, to, n)))
-		n = __copy_to_user(to, from, n);
-	return n;
-}
-
 unsigned long copy_in_user(void __user *to, const void __user *from,
 			   unsigned long n)
 {
@@ -35,7 +19,5 @@ unsigned long copy_in_user(void __user *to, const void __user *from,
 	return n;
 }
 
-EXPORT_SYMBOL(copy_from_user);
-EXPORT_SYMBOL(copy_to_user);
 EXPORT_SYMBOL(copy_in_user);
 
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 229951f..cdeca42 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -32,6 +32,10 @@
 #include <linux/perf_event.h>
 #include <linux/magic.h>
 #include <linux/ratelimit.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/compiler.h>
+#include <linux/unistd.h>
 
 #include <asm/firmware.h>
 #include <asm/page.h>
@@ -68,6 +72,33 @@ static inline int notify_page_fault(struct pt_regs *regs)
 }
 #endif
 
+#ifdef CONFIG_PAX_PAGEEXEC
+/*
+ * PaX: decide what to do with offenders (regs->nip = fault address)
+ *
+ * returns 1 when task should be killed
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+	return 1;
+}
+
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 5; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int __user *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 /*
  * Check whether the instruction at regs->nip is a store using
  * an update addressing form which will update r1.
@@ -213,7 +244,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
 	 * indicate errors in DSISR but can validly be set in SRR1.
 	 */
 	if (trap == 0x400)
-		error_code &= 0x48200000;
+		error_code &= 0x58200000;
 	else
 		is_write = error_code & DSISR_ISSTORE;
 #else
@@ -364,7 +395,7 @@ good_area:
          * "undefined".  Of those that can be set, this is the only
          * one which seems bad.
          */
-	if (error_code & 0x10000000)
+	if (error_code & DSISR_GUARDED)
                 /* Guarded storage error. */
 		goto bad_area;
 #endif /* CONFIG_8xx */
@@ -379,7 +410,7 @@ good_area:
 		 * processors use the same I/D cache coherency mechanism
 		 * as embedded.
 		 */
-		if (error_code & DSISR_PROTFAULT)
+		if (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))
 			goto bad_area;
 #endif /* CONFIG_PPC_STD_MMU */
 
@@ -462,6 +493,23 @@ bad_area:
 bad_area_nosemaphore:
 	/* User mode accesses cause a SIGSEGV */
 	if (user_mode(regs)) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if (mm->pax_flags & MF_PAX_PAGEEXEC) {
+#ifdef CONFIG_PPC_STD_MMU
+			if (is_exec && (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))) {
+#else
+			if (is_exec && regs->nip == address) {
+#endif
+				switch (pax_handle_fetch_fault(regs)) {
+				}
+
+				pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]);
+				do_group_exit(SIGKILL);
+			}
+		}
+#endif
+
 		_exception(SIGSEGV, regs, code, address);
 		return 0;
 	}
diff --git a/arch/powerpc/mm/mmap_64.c b/arch/powerpc/mm/mmap_64.c
index 67a42ed..cd463e0 100644
--- a/arch/powerpc/mm/mmap_64.c
+++ b/arch/powerpc/mm/mmap_64.c
@@ -57,6 +57,10 @@ static unsigned long mmap_rnd(void)
 {
 	unsigned long rnd = 0;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (current->flags & PF_RANDOMIZE) {
 		/* 8MB for 32bit, 1GB for 64bit */
 		if (is_32bit_task())
@@ -91,10 +95,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	 */
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area;
 		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 		mm->unmap_area = arch_unmap_area_topdown;
 	}
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index e779642..e5bb889 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -363,7 +363,7 @@ static int __cpuinit mmu_context_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata mmu_context_cpu_nb = {
+static struct notifier_block mmu_context_cpu_nb = {
 	.notifier_call	= mmu_context_cpu_notify,
 };
 
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 6a252c4..3024d81 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -932,7 +932,7 @@ static void __init *careful_zallocation(int nid, unsigned long size,
 	return ret;
 }
 
-static struct notifier_block __cpuinitdata ppc64_numa_nb = {
+static struct notifier_block ppc64_numa_nb = {
 	.notifier_call = cpu_numa_callback,
 	.priority = 1 /* Must run before sched domains notifier. */
 };
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index cf9dada..241529f 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -103,7 +103,7 @@ static int slice_area_is_free(struct mm_struct *mm, unsigned long addr,
 	if ((mm->task_size - len) < addr)
 		return 0;
 	vma = find_vma(mm, addr);
-	return (!vma || (addr + len) <= vma->vm_start);
+	return check_heap_stack_gap(vma, addr, len, 0);
 }
 
 static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice)
@@ -272,7 +272,7 @@ full_search:
 				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_HIGH_SHIFT);
 			continue;
 		}
-		if (!vma || addr + len <= vma->vm_start) {
+		if (check_heap_stack_gap(vma, addr, len, 0)) {
 			/*
 			 * Remember the place where we stopped the search:
 			 */
@@ -329,10 +329,14 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 		}
 	}
 
-	addr = mm->mmap_base;
-	while (addr > len) {
+	if (mm->mmap_base < len)
+		addr = -ENOMEM;
+	else
+		addr = mm->mmap_base - len;
+
+	while (!IS_ERR_VALUE(addr)) {
 		/* Go down by chunk size */
-		addr = _ALIGN_DOWN(addr - len, 1ul << pshift);
+		addr = _ALIGN_DOWN(addr, 1ul << pshift);
 
 		/* Check for hit with different page size */
 		mask = slice_range_to_mask(addr, len);
@@ -352,7 +356,7 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 		 * return with success:
 		 */
 		vma = find_vma(mm, addr);
-		if (!vma || (addr + len) <= vma->vm_start) {
+		if (check_heap_stack_gap(vma, addr, len, 0)) {
 			/* remember the address as a hint for next time */
 			if (use_cache)
 				mm->free_area_cache = addr;
@@ -364,7 +368,7 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 		        mm->cached_hole_size = vma->vm_start - addr;
 
 		/* try just below the current vma->vm_start */
-		addr = vma->vm_start;
+		addr = skip_heap_stack_gap(vma, len, 0);
 	}
 
 	/*
@@ -442,6 +446,11 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 	if (fixed && addr > (mm->task_size - len))
 		return -EINVAL;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!fixed && (mm->pax_flags & MF_PAX_RANDMMAP))
+		addr = 0;
+#endif
+
 	/* If hint, make sure it matches our alignment restrictions */
 	if (!fixed && addr) {
 		addr = _ALIGN_UP(addr, 1ul << pshift);
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 68c57d3..1fdcfb2 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -281,9 +281,9 @@ spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	return VM_FAULT_NOPAGE;
 }
 
-static int spufs_mem_mmap_access(struct vm_area_struct *vma,
+static ssize_t spufs_mem_mmap_access(struct vm_area_struct *vma,
 				unsigned long address,
-				void *buf, int len, int write)
+				void *buf, size_t len, int write)
 {
 	struct spu_context *ctx = vma->vm_file->private_data;
 	unsigned long offset = address - vma->vm_start;
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index bdb738a..49c9f95 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -885,7 +885,7 @@ static int smp_core99_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata smp_core99_cpu_nb = {
+static struct notifier_block smp_core99_cpu_nb = {
 	.notifier_call	= smp_core99_cpu_notify,
 };
 #endif /* CONFIG_HOTPLUG_CPU */
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index c797832..ce575c8 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -326,6 +326,16 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
 #define atomic64_dec_and_test(_v)	(atomic64_sub_return(1, _v) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
 #define smp_mb__before_atomic_inc()	smp_mb()
diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h
index 4d7ccac..d03d0ad 100644
--- a/arch/s390/include/asm/cache.h
+++ b/arch/s390/include/asm/cache.h
@@ -9,8 +9,10 @@
 #ifndef __ARCH_S390_CACHE_H
 #define __ARCH_S390_CACHE_H
 
-#define L1_CACHE_BYTES     256
+#include <linux/const.h>
+
 #define L1_CACHE_SHIFT     8
+#define L1_CACHE_BYTES     (_AC(1,UL) << L1_CACHE_SHIFT)
 #define NET_SKB_PAD	   32
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 1bfdf24..9c9ab2e 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -160,8 +160,14 @@ extern unsigned int vdso_enabled;
    the loader.  We need to make sure that it is out of the way of the program
    that it will "exec", and that there is sufficient room for the brk.  */
 
-extern unsigned long randomize_et_dyn(unsigned long base);
-#define ELF_ET_DYN_BASE		(randomize_et_dyn(STACK_TOP / 3 * 2))
+#define ELF_ET_DYN_BASE		(STACK_TOP / 3 * 2)
+
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(test_thread_flag(TIF_31BIT) ? 0x10000UL : 0x80000000UL)
+
+#define PAX_DELTA_MMAP_LEN	(test_thread_flag(TIF_31BIT) ? 15 : 26)
+#define PAX_DELTA_STACK_LEN	(test_thread_flag(TIF_31BIT) ? 15 : 26)
+#endif
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports. */
@@ -207,9 +213,6 @@ struct linux_binprm;
 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
 int arch_setup_additional_pages(struct linux_binprm *, int);
 
-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
-#define arch_randomize_brk arch_randomize_brk
-
 void *fill_cpu_elf_notes(void *ptr, struct save_area *sa);
 
 #endif
diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h
index c4a93d6..4d2a9b4 100644
--- a/arch/s390/include/asm/exec.h
+++ b/arch/s390/include/asm/exec.h
@@ -7,6 +7,6 @@
 #ifndef __ASM_EXEC_H
 #define __ASM_EXEC_H
 
-extern unsigned long arch_align_stack(unsigned long sp);
+#define arch_align_stack(x) ((x) & ~0xfUL)
 
 #endif /* __ASM_EXEC_H */
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index 9c33ed4..e40cbef 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -252,6 +252,10 @@ static inline unsigned long __must_check
 copy_to_user(void __user *to, const void *from, unsigned long n)
 {
 	might_fault();
+
+	if ((long)n < 0)
+		return n;
+
 	return __copy_to_user(to, from, n);
 }
 
@@ -275,6 +279,9 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
 static inline unsigned long __must_check
 __copy_from_user(void *to, const void __user *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	if (__builtin_constant_p(n) && (n <= 256))
 		return uaccess.copy_from_user_small(n, from, to);
 	else
@@ -306,10 +313,14 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct")
 static inline unsigned long __must_check
 copy_from_user(void *to, const void __user *from, unsigned long n)
 {
-	unsigned int sz = __compiletime_object_size(to);
+	size_t sz = __compiletime_object_size(to);
 
 	might_fault();
-	if (unlikely(sz != -1 && sz < n)) {
+
+	if ((long)n < 0)
+		return n;
+
+	if (unlikely(sz != (size_t)-1 && sz < n)) {
 		copy_from_user_overflow();
 		return n;
 	}
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 7845e15..59c4353 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -169,11 +169,11 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 
 	/* Increase core size by size of got & plt and set start
 	   offsets for got and plt. */
-	me->core_size = ALIGN(me->core_size, 4);
-	me->arch.got_offset = me->core_size;
-	me->core_size += me->arch.got_size;
-	me->arch.plt_offset = me->core_size;
-	me->core_size += me->arch.plt_size;
+	me->core_size_rw = ALIGN(me->core_size_rw, 4);
+	me->arch.got_offset = me->core_size_rw;
+	me->core_size_rw += me->arch.got_size;
+	me->arch.plt_offset = me->core_size_rx;
+	me->core_size_rx += me->arch.plt_size;
 	return 0;
 }
 
@@ -289,7 +289,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 		if (info->got_initialized == 0) {
 			Elf_Addr *gotent;
 
-			gotent = me->module_core + me->arch.got_offset +
+			gotent = me->module_core_rw + me->arch.got_offset +
 				info->got_offset;
 			*gotent = val;
 			info->got_initialized = 1;
@@ -312,7 +312,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 			rc = apply_rela_bits(loc, val, 0, 64, 0);
 		else if (r_type == R_390_GOTENT ||
 			 r_type == R_390_GOTPLTENT) {
-			val += (Elf_Addr) me->module_core - loc;
+			val += (Elf_Addr) me->module_core_rw - loc;
 			rc = apply_rela_bits(loc, val, 1, 32, 1);
 		}
 		break;
@@ -325,7 +325,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 	case R_390_PLTOFF64:	/* 16 bit offset from GOT to PLT. */
 		if (info->plt_initialized == 0) {
 			unsigned int *ip;
-			ip = me->module_core + me->arch.plt_offset +
+			ip = me->module_core_rx + me->arch.plt_offset +
 				info->plt_offset;
 #ifndef CONFIG_64BIT
 			ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */
@@ -350,7 +350,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 			       val - loc + 0xffffUL < 0x1ffffeUL) ||
 			      (r_type == R_390_PLT32DBL &&
 			       val - loc + 0xffffffffULL < 0x1fffffffeULL)))
-				val = (Elf_Addr) me->module_core +
+				val = (Elf_Addr) me->module_core_rx +
 					me->arch.plt_offset +
 					info->plt_offset;
 			val += rela->r_addend - loc;
@@ -372,7 +372,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 	case R_390_GOTOFF32:	/* 32 bit offset to GOT.  */
 	case R_390_GOTOFF64:	/* 64 bit offset to GOT. */
 		val = val + rela->r_addend -
-			((Elf_Addr) me->module_core + me->arch.got_offset);
+			((Elf_Addr) me->module_core_rw + me->arch.got_offset);
 		if (r_type == R_390_GOTOFF16)
 			rc = apply_rela_bits(loc, val, 0, 16, 0);
 		else if (r_type == R_390_GOTOFF32)
@@ -382,7 +382,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 		break;
 	case R_390_GOTPC:	/* 32 bit PC relative offset to GOT. */
 	case R_390_GOTPCDBL:	/* 32 bit PC rel. off. to GOT shifted by 1. */
-		val = (Elf_Addr) me->module_core + me->arch.got_offset +
+		val = (Elf_Addr) me->module_core_rw + me->arch.got_offset +
 			rela->r_addend - loc;
 		if (r_type == R_390_GOTPC)
 			rc = apply_rela_bits(loc, val, 1, 32, 0);
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 536d645..4a5bd9e 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -250,39 +250,3 @@ unsigned long get_wchan(struct task_struct *p)
 	}
 	return 0;
 }
-
-unsigned long arch_align_stack(unsigned long sp)
-{
-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() & ~PAGE_MASK;
-	return sp & ~0xf;
-}
-
-static inline unsigned long brk_rnd(void)
-{
-	/* 8MB for 32bit, 1GB for 64bit */
-	if (is_32bit_task())
-		return (get_random_int() & 0x7ffUL) << PAGE_SHIFT;
-	else
-		return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT;
-}
-
-unsigned long arch_randomize_brk(struct mm_struct *mm)
-{
-	unsigned long ret = PAGE_ALIGN(mm->brk + brk_rnd());
-
-	if (ret < mm->brk)
-		return mm->brk;
-	return ret;
-}
-
-unsigned long randomize_et_dyn(unsigned long base)
-{
-	unsigned long ret = PAGE_ALIGN(base + brk_rnd());
-
-	if (!(current->flags & PF_RANDOMIZE))
-		return base;
-	if (ret < base)
-		return base;
-	return ret;
-}
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index 06bafec..2bca531 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -90,10 +90,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	 */
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area;
 		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 		mm->unmap_area = arch_unmap_area_topdown;
 	}
@@ -175,10 +187,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	 */
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = s390_get_unmapped_area;
 		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = s390_get_unmapped_area_topdown;
 		mm->unmap_area = arch_unmap_area_topdown;
 	}
diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h
index ae3d59f..f65f075 100644
--- a/arch/score/include/asm/cache.h
+++ b/arch/score/include/asm/cache.h
@@ -1,7 +1,9 @@
 #ifndef _ASM_SCORE_CACHE_H
 #define _ASM_SCORE_CACHE_H
 
+#include <linux/const.h>
+
 #define L1_CACHE_SHIFT		4
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #endif /* _ASM_SCORE_CACHE_H */
diff --git a/arch/score/include/asm/exec.h b/arch/score/include/asm/exec.h
index f9f3cd5..58ff438 100644
--- a/arch/score/include/asm/exec.h
+++ b/arch/score/include/asm/exec.h
@@ -1,6 +1,6 @@
 #ifndef _ASM_SCORE_EXEC_H
 #define _ASM_SCORE_EXEC_H
 
-extern unsigned long arch_align_stack(unsigned long sp);
+#define arch_align_stack(x) (x)
 
 #endif /* _ASM_SCORE_EXEC_H */
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index 7956846..5f37677 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -134,8 +134,3 @@ unsigned long get_wchan(struct task_struct *task)
 
 	return task_pt_regs(task)->cp0_epc;
 }
-
-unsigned long arch_align_stack(unsigned long sp)
-{
-	return sp;
-}
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
index ef9e555..331bd29 100644
--- a/arch/sh/include/asm/cache.h
+++ b/arch/sh/include/asm/cache.h
@@ -9,10 +9,11 @@
 #define __ASM_SH_CACHE_H
 #ifdef __KERNEL__
 
+#include <linux/const.h>
 #include <linux/init.h>
 #include <cpu/cache.h>
 
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
 
diff --git a/arch/sh/kernel/cpu/sh4a/smp-shx3.c b/arch/sh/kernel/cpu/sh4a/smp-shx3.c
index 03f2b55..b0270327 100644
--- a/arch/sh/kernel/cpu/sh4a/smp-shx3.c
+++ b/arch/sh/kernel/cpu/sh4a/smp-shx3.c
@@ -143,7 +143,7 @@ shx3_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata shx3_cpu_notifier = {
+static struct notifier_block shx3_cpu_notifier = {
 	.notifier_call		= shx3_cpu_callback,
 };
 
diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
index 6777177..cb5e44f 100644
--- a/arch/sh/mm/mmap.c
+++ b/arch/sh/mm/mmap.c
@@ -36,6 +36,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	int do_colour_align;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	if (flags & MAP_FIXED) {
@@ -55,6 +56,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	if (filp || (flags & MAP_SHARED))
 		do_colour_align = 1;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		if (do_colour_align)
 			addr = COLOUR_ALIGN(addr, pgoff);
@@ -62,14 +67,13 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
 	info.flags = 0;
 	info.length = len;
-	info.low_limit = TASK_UNMAPPED_BASE;
+	info.low_limit = mm->mmap_base;
 	info.high_limit = TASK_SIZE;
 	info.align_mask = do_colour_align ? (PAGE_MASK & shm_align_mask) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
@@ -85,6 +89,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	int do_colour_align;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	if (flags & MAP_FIXED) {
@@ -104,6 +109,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (filp || (flags & MAP_SHARED))
 		do_colour_align = 1;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* requesting a specific address */
 	if (addr) {
 		if (do_colour_align)
@@ -112,8 +121,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -135,6 +143,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = TASK_SIZE;
 		addr = vm_unmapped_area(&info);
 	}
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
index be56a24..443328f 100644
--- a/arch/sparc/include/asm/atomic_64.h
+++ b/arch/sparc/include/asm/atomic_64.h
@@ -14,18 +14,40 @@
 #define ATOMIC64_INIT(i)	{ (i) }
 
 #define atomic_read(v)		(*(volatile int *)&(v)->counter)
+static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
+{
+	return v->counter;
+}
 #define atomic64_read(v)	(*(volatile long *)&(v)->counter)
+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
+{
+	return v->counter;
+}
 
 #define atomic_set(v, i)	(((v)->counter) = i)
+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
+{
+	v->counter = i;
+}
 #define atomic64_set(v, i)	(((v)->counter) = i)
+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
+{
+	v->counter = i;
+}
 
 extern void atomic_add(int, atomic_t *);
+extern void atomic_add_unchecked(int, atomic_unchecked_t *);
 extern void atomic64_add(long, atomic64_t *);
+extern void atomic64_add_unchecked(long, atomic64_unchecked_t *);
 extern void atomic_sub(int, atomic_t *);
+extern void atomic_sub_unchecked(int, atomic_unchecked_t *);
 extern void atomic64_sub(long, atomic64_t *);
+extern void atomic64_sub_unchecked(long, atomic64_unchecked_t *);
 
 extern int atomic_add_ret(int, atomic_t *);
+extern int atomic_add_ret_unchecked(int, atomic_unchecked_t *);
 extern long atomic64_add_ret(long, atomic64_t *);
+extern long atomic64_add_ret_unchecked(long, atomic64_unchecked_t *);
 extern int atomic_sub_ret(int, atomic_t *);
 extern long atomic64_sub_ret(long, atomic64_t *);
 
@@ -33,13 +55,29 @@ extern long atomic64_sub_ret(long, atomic64_t *);
 #define atomic64_dec_return(v) atomic64_sub_ret(1, v)
 
 #define atomic_inc_return(v) atomic_add_ret(1, v)
+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_add_ret_unchecked(1, v);
+}
 #define atomic64_inc_return(v) atomic64_add_ret(1, v)
+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
+{
+	return atomic64_add_ret_unchecked(1, v);
+}
 
 #define atomic_sub_return(i, v) atomic_sub_ret(i, v)
 #define atomic64_sub_return(i, v) atomic64_sub_ret(i, v)
 
 #define atomic_add_return(i, v) atomic_add_ret(i, v)
+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
+{
+	return atomic_add_ret_unchecked(i, v);
+}
 #define atomic64_add_return(i, v) atomic64_add_ret(i, v)
+static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
+{
+	return atomic64_add_ret_unchecked(i, v);
+}
 
 /*
  * atomic_inc_and_test - increment and test
@@ -50,6 +88,10 @@ extern long atomic64_sub_ret(long, atomic64_t *);
  * other cases.
  */
 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_inc_return_unchecked(v) == 0;
+}
 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
 
 #define atomic_sub_and_test(i, v) (atomic_sub_ret(i, v) == 0)
@@ -59,25 +101,60 @@ extern long atomic64_sub_ret(long, atomic64_t *);
 #define atomic64_dec_and_test(v) (atomic64_sub_ret(1, v) == 0)
 
 #define atomic_inc(v) atomic_add(1, v)
+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
+{
+	atomic_add_unchecked(1, v);
+}
 #define atomic64_inc(v) atomic64_add(1, v)
+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
+{
+	atomic64_add_unchecked(1, v);
+}
 
 #define atomic_dec(v) atomic_sub(1, v)
+static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
+{
+	atomic_sub_unchecked(1, v);
+}
 #define atomic64_dec(v) atomic64_sub(1, v)
+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
+{
+	atomic64_sub_unchecked(1, v);
+}
 
 #define atomic_add_negative(i, v) (atomic_add_ret(i, v) < 0)
 #define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0)
 
 #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
+{
+	return cmpxchg(&v->counter, old, new);
+}
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
+{
+	return xchg(&v->counter, new);
+}
 
 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 {
-	int c, old;
+	int c, old, new;
 	c = atomic_read(v);
 	for (;;) {
-		if (unlikely(c == (u)))
+		if (unlikely(c == u))
 			break;
-		old = atomic_cmpxchg((v), c, c + (a));
+
+		asm volatile("addcc %2, %0, %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+			     "tvs %%icc, 6\n"
+#endif
+
+			     : "=r" (new)
+			     : "0" (c), "ir" (a)
+			     : "cc");
+
+		old = atomic_cmpxchg(v, c, new);
 		if (likely(old == c))
 			break;
 		c = old;
@@ -88,20 +165,35 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 #define atomic64_cmpxchg(v, o, n) \
 	((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
+{
+	return xchg(&v->counter, new);
+}
 
 static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
 {
-	long c, old;
+	long c, old, new;
 	c = atomic64_read(v);
 	for (;;) {
-		if (unlikely(c == (u)))
+		if (unlikely(c == u))
 			break;
-		old = atomic64_cmpxchg((v), c, c + (a));
+
+		asm volatile("addcc %2, %0, %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+			     "tvs %%xcc, 6\n"
+#endif
+
+			     : "=r" (new)
+			     : "0" (c), "ir" (a)
+			     : "cc");
+
+		old = atomic64_cmpxchg(v, c, new);
 		if (likely(old == c))
 			break;
 		c = old;
 	}
-	return c != (u);
+	return c != u;
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
index 5bb6991..5c2132e 100644
--- a/arch/sparc/include/asm/cache.h
+++ b/arch/sparc/include/asm/cache.h
@@ -7,10 +7,12 @@
 #ifndef _SPARC_CACHE_H
 #define _SPARC_CACHE_H
 
+#include <linux/const.h>
+
 #define ARCH_SLAB_MINALIGN	__alignof__(unsigned long long)
 
 #define L1_CACHE_SHIFT 5
-#define L1_CACHE_BYTES 32
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
 
 #ifdef CONFIG_SPARC32
 #define SMP_CACHE_BYTES_SHIFT 5
diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h
index a24e41f..47677ff 100644
--- a/arch/sparc/include/asm/elf_32.h
+++ b/arch/sparc/include/asm/elf_32.h
@@ -114,6 +114,13 @@ typedef struct {
 
 #define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	0x10000UL
+
+#define PAX_DELTA_MMAP_LEN	16
+#define PAX_DELTA_STACK_LEN	16
+#endif
+
 /* This yields a mask that user programs can use to figure out what
    instruction set this cpu supports.  This can NOT be done in userspace
    on Sparc.  */
diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
index 370ca1e..d4f4a98 100644
--- a/arch/sparc/include/asm/elf_64.h
+++ b/arch/sparc/include/asm/elf_64.h
@@ -189,6 +189,13 @@ typedef struct {
 #define ELF_ET_DYN_BASE		0x0000010000000000UL
 #define COMPAT_ELF_ET_DYN_BASE	0x0000000070000000UL
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL)
+
+#define PAX_DELTA_MMAP_LEN	(test_thread_flag(TIF_32BIT) ? 14 : 28)
+#define PAX_DELTA_STACK_LEN	(test_thread_flag(TIF_32BIT) ? 15 : 29)
+#endif
+
 extern unsigned long sparc64_elf_hwcap;
 #define ELF_HWCAP	sparc64_elf_hwcap
 
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index 9b1c36d..209298b 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -33,6 +33,7 @@ static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
 }
 
 #define pgd_populate(MM, PGD, PMD)      pgd_set(PGD, PMD)
+#define pgd_populate_kernel(MM, PGD, PMD)      pgd_populate((MM), (PGD), (PMD))
 
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
 				   unsigned long address)
diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
index bcfe063..b333142 100644
--- a/arch/sparc/include/asm/pgalloc_64.h
+++ b/arch/sparc/include/asm/pgalloc_64.h
@@ -26,6 +26,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 }
 
 #define pud_populate(MM, PUD, PMD)	pud_set(PUD, PMD)
+#define pud_populate_kernel(MM, PUD, PMD)	pud_populate((MM), (PUD), (PMD))
 
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 6fc1348..390c50a 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -50,6 +50,9 @@ extern unsigned long calc_highpages(void);
 #define PAGE_SHARED	SRMMU_PAGE_SHARED
 #define PAGE_COPY	SRMMU_PAGE_COPY
 #define PAGE_READONLY	SRMMU_PAGE_RDONLY
+#define PAGE_SHARED_NOEXEC	SRMMU_PAGE_SHARED_NOEXEC
+#define PAGE_COPY_NOEXEC	SRMMU_PAGE_COPY_NOEXEC
+#define PAGE_READONLY_NOEXEC	SRMMU_PAGE_RDONLY_NOEXEC
 #define PAGE_KERNEL	SRMMU_PAGE_KERNEL
 
 /* Top-level page directory - dummy used by init-mm.
@@ -62,18 +65,18 @@ extern unsigned long ptr_in_current_pgd;
 
 /*         xwr */
 #define __P000  PAGE_NONE
-#define __P001  PAGE_READONLY
-#define __P010  PAGE_COPY
-#define __P011  PAGE_COPY
+#define __P001  PAGE_READONLY_NOEXEC
+#define __P010  PAGE_COPY_NOEXEC
+#define __P011  PAGE_COPY_NOEXEC
 #define __P100  PAGE_READONLY
 #define __P101  PAGE_READONLY
 #define __P110  PAGE_COPY
 #define __P111  PAGE_COPY
 
 #define __S000	PAGE_NONE
-#define __S001	PAGE_READONLY
-#define __S010	PAGE_SHARED
-#define __S011	PAGE_SHARED
+#define __S001	PAGE_READONLY_NOEXEC
+#define __S010	PAGE_SHARED_NOEXEC
+#define __S011	PAGE_SHARED_NOEXEC
 #define __S100	PAGE_READONLY
 #define __S101	PAGE_READONLY
 #define __S110	PAGE_SHARED
diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h
index 79da178..c2eede8 100644
--- a/arch/sparc/include/asm/pgtsrmmu.h
+++ b/arch/sparc/include/asm/pgtsrmmu.h
@@ -115,6 +115,11 @@
 				    SRMMU_EXEC | SRMMU_REF)
 #define SRMMU_PAGE_RDONLY  __pgprot(SRMMU_VALID | SRMMU_CACHE | \
 				    SRMMU_EXEC | SRMMU_REF)
+
+#define SRMMU_PAGE_SHARED_NOEXEC	__pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF)
+#define SRMMU_PAGE_COPY_NOEXEC		__pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
+#define SRMMU_PAGE_RDONLY_NOEXEC	__pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
+
 #define SRMMU_PAGE_KERNEL  __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \
 				    SRMMU_DIRTY | SRMMU_REF)
 
diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
index 9689176..63c18ea 100644
--- a/arch/sparc/include/asm/spinlock_64.h
+++ b/arch/sparc/include/asm/spinlock_64.h
@@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long fla
 
 /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */
 
-static void inline arch_read_lock(arch_rwlock_t *lock)
+static inline void arch_read_lock(arch_rwlock_t *lock)
 {
 	unsigned long tmp1, tmp2;
 
 	__asm__ __volatile__ (
 "1:	ldsw		[%2], %0\n"
 "	brlz,pn		%0, 2f\n"
-"4:	 add		%0, 1, %1\n"
+"4:	 addcc		%0, 1, %1\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	tvs		%%icc, 6\n"
+#endif
+
 "	cas		[%2], %0, %1\n"
 "	cmp		%0, %1\n"
 "	bne,pn		%%icc, 1b\n"
@@ -112,10 +117,10 @@ static void inline arch_read_lock(arch_rwlock_t *lock)
 "	.previous"
 	: "=&r" (tmp1), "=&r" (tmp2)
 	: "r" (lock)
-	: "memory");
+	: "memory", "cc");
 }
 
-static int inline arch_read_trylock(arch_rwlock_t *lock)
+static inline int arch_read_trylock(arch_rwlock_t *lock)
 {
 	int tmp1, tmp2;
 
@@ -123,7 +128,12 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
 "1:	ldsw		[%2], %0\n"
 "	brlz,a,pn	%0, 2f\n"
 "	 mov		0, %0\n"
-"	add		%0, 1, %1\n"
+"	addcc		%0, 1, %1\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	tvs		%%icc, 6\n"
+#endif
+
 "	cas		[%2], %0, %1\n"
 "	cmp		%0, %1\n"
 "	bne,pn		%%icc, 1b\n"
@@ -136,13 +146,18 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
 	return tmp1;
 }
 
-static void inline arch_read_unlock(arch_rwlock_t *lock)
+static inline void arch_read_unlock(arch_rwlock_t *lock)
 {
 	unsigned long tmp1, tmp2;
 
 	__asm__ __volatile__(
 "1:	lduw	[%2], %0\n"
-"	sub	%0, 1, %1\n"
+"	subcc	%0, 1, %1\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	tvs	%%icc, 6\n"
+#endif
+
 "	cas	[%2], %0, %1\n"
 "	cmp	%0, %1\n"
 "	bne,pn	%%xcc, 1b\n"
@@ -152,7 +167,7 @@ static void inline arch_read_unlock(arch_rwlock_t *lock)
 	: "memory");
 }
 
-static void inline arch_write_lock(arch_rwlock_t *lock)
+static inline void arch_write_lock(arch_rwlock_t *lock)
 {
 	unsigned long mask, tmp1, tmp2;
 
@@ -177,7 +192,7 @@ static void inline arch_write_lock(arch_rwlock_t *lock)
 	: "memory");
 }
 
-static void inline arch_write_unlock(arch_rwlock_t *lock)
+static inline void arch_write_unlock(arch_rwlock_t *lock)
 {
 	__asm__ __volatile__(
 "	stw		%%g0, [%0]"
@@ -186,7 +201,7 @@ static void inline arch_write_unlock(arch_rwlock_t *lock)
 	: "memory");
 }
 
-static int inline arch_write_trylock(arch_rwlock_t *lock)
+static inline int arch_write_trylock(arch_rwlock_t *lock)
 {
 	unsigned long mask, tmp1, tmp2, result;
 
diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
index 25849ae..924c54b 100644
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -49,6 +49,8 @@ struct thread_info {
 	unsigned long		w_saved;
 
 	struct restart_block	restart_block;
+
+	unsigned long		lowest_stack;
 };
 
 /*
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index 269bd92..e46a9b8 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -63,6 +63,8 @@ struct thread_info {
 	struct pt_regs		*kern_una_regs;
 	unsigned int		kern_una_insn;
 
+	unsigned long		lowest_stack;
+
 	unsigned long		fpregs[0] __attribute__ ((aligned(64)));
 };
 
@@ -192,10 +194,11 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #define TIF_UNALIGNED		5	/* allowed to do unaligned accesses */
 /* flag bit 6 is available */
 #define TIF_32BIT		7	/* 32-bit binary */
-/* flag bit 8 is available */
+#define TIF_GRSEC_SETXID	8	/* update credentials on syscall entry/exit */
 #define TIF_SECCOMP		9	/* secure computing */
 #define TIF_SYSCALL_AUDIT	10	/* syscall auditing active */
 #define TIF_SYSCALL_TRACEPOINT	11	/* syscall tracepoint instrumentation */
+
 /* NOTE: Thread flags >= 12 should be ones we have no interest
  *       in using in assembly, else we can't use the mask as
  *       an immediate value in instructions such as andcc.
@@ -214,12 +217,18 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #define _TIF_SYSCALL_AUDIT	(1<<TIF_SYSCALL_AUDIT)
 #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
 #define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
+#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
 
 #define _TIF_USER_WORK_MASK	((0xff << TI_FLAG_WSAVED_SHIFT) | \
 				 _TIF_DO_NOTIFY_RESUME_MASK | \
 				 _TIF_NEED_RESCHED)
 #define _TIF_DO_NOTIFY_RESUME_MASK	(_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
 
+#define _TIF_WORK_SYSCALL		\
+	(_TIF_SYSCALL_TRACE | _TIF_SECCOMP | _TIF_SYSCALL_AUDIT | \
+	 _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
+
+
 /*
  * Thread-synchronous status.
  *
diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h
index 0167d26..767bb0c 100644
--- a/arch/sparc/include/asm/uaccess.h
+++ b/arch/sparc/include/asm/uaccess.h
@@ -1,5 +1,6 @@
 #ifndef ___ASM_SPARC_UACCESS_H
 #define ___ASM_SPARC_UACCESS_H
+
 #if defined(__sparc__) && defined(__arch64__)
 #include <asm/uaccess_64.h>
 #else
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
index 53a28dd..50c38c3 100644
--- a/arch/sparc/include/asm/uaccess_32.h
+++ b/arch/sparc/include/asm/uaccess_32.h
@@ -250,27 +250,46 @@ extern unsigned long __copy_user(void __user *to, const void __user *from, unsig
 
 static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
 {
-	if (n && __access_ok((unsigned long) to, n))
+	if ((long)n < 0)
+		return n;
+
+	if (n && __access_ok((unsigned long) to, n)) {
+		if (!__builtin_constant_p(n))
+			check_object_size(from, n, true);
 		return __copy_user(to, (__force void __user *) from, n);
-	else
+	} else
 		return n;
 }
 
 static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
+	if (!__builtin_constant_p(n))
+		check_object_size(from, n, true);
+
 	return __copy_user(to, (__force void __user *) from, n);
 }
 
 static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
 {
-	if (n && __access_ok((unsigned long) from, n))
+	if ((long)n < 0)
+		return n;
+
+	if (n && __access_ok((unsigned long) from, n)) {
+		if (!__builtin_constant_p(n))
+			check_object_size(to, n, false);
 		return __copy_user((__force void __user *) to, from, n);
-	else
+	} else
 		return n;
 }
 
 static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	return __copy_user((__force void __user *) to, from, n);
 }
 
diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
index e562d3c..191f176 100644
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -10,6 +10,7 @@
 #include <linux/compiler.h>
 #include <linux/string.h>
 #include <linux/thread_info.h>
+#include <linux/kernel.h>
 #include <asm/asi.h>
 #include <asm/spitfire.h>
 #include <asm-generic/uaccess-unaligned.h>
@@ -214,8 +215,15 @@ extern unsigned long copy_from_user_fixup(void *to, const void __user *from,
 static inline unsigned long __must_check
 copy_from_user(void *to, const void __user *from, unsigned long size)
 {
-	unsigned long ret = ___copy_from_user(to, from, size);
+	unsigned long ret;
 
+	if ((long)size < 0 || size > INT_MAX)
+		return size;
+
+	if (!__builtin_constant_p(size))
+		check_object_size(to, size, false);
+
+	ret = ___copy_from_user(to, from, size);
 	if (unlikely(ret))
 		ret = copy_from_user_fixup(to, from, size);
 
@@ -231,8 +239,15 @@ extern unsigned long copy_to_user_fixup(void __user *to, const void *from,
 static inline unsigned long __must_check
 copy_to_user(void __user *to, const void *from, unsigned long size)
 {
-	unsigned long ret = ___copy_to_user(to, from, size);
+	unsigned long ret;
 
+	if ((long)size < 0 || size > INT_MAX)
+		return size;
+
+	if (!__builtin_constant_p(size))
+		check_object_size(from, size, true);
+
+	ret = ___copy_to_user(to, from, size);
 	if (unlikely(ret))
 		ret = copy_to_user_fixup(to, from, size);
 	return ret;
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 6cf591b..b49e65a 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -3,7 +3,7 @@
 #
 
 asflags-y := -ansi
-ccflags-y := -Werror
+#ccflags-y := -Werror
 
 extra-y     := head_$(BITS).o
 
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 62eede1..9c5b904 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -125,14 +125,14 @@ void show_regs(struct pt_regs *r)
 
         printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx    %s\n",
 	       r->psr, r->pc, r->npc, r->y, print_tainted());
-	printk("PC: <%pS>\n", (void *) r->pc);
+	printk("PC: <%pA>\n", (void *) r->pc);
 	printk("%%G: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
 	       r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3],
 	       r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]);
 	printk("%%O: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
 	       r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11],
 	       r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]);
-	printk("RPC: <%pS>\n", (void *) r->u_regs[15]);
+	printk("RPC: <%pA>\n", (void *) r->u_regs[15]);
 
 	printk("%%L: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
 	       rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3],
@@ -167,7 +167,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 		rw = (struct reg_window32 *) fp;
 		pc = rw->ins[7];
 		printk("[%08lx : ", pc);
-		printk("%pS ] ", (void *) pc);
+		printk("%pA ] ", (void *) pc);
 		fp = rw->ins[6];
 	} while (++count < 16);
 	printk("\n");
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index cdb80b2..5ca141d 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -181,14 +181,14 @@ static void show_regwindow(struct pt_regs *regs)
 	printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n",
 	       rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]);
 	if (regs->tstate & TSTATE_PRIV)
-		printk("I7: <%pS>\n", (void *) rwk->ins[7]);
+		printk("I7: <%pA>\n", (void *) rwk->ins[7]);
 }
 
 void show_regs(struct pt_regs *regs)
 {
 	printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x    %s\n", regs->tstate,
 	       regs->tpc, regs->tnpc, regs->y, print_tainted());
-	printk("TPC: <%pS>\n", (void *) regs->tpc);
+	printk("TPC: <%pA>\n", (void *) regs->tpc);
 	printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n",
 	       regs->u_regs[0], regs->u_regs[1], regs->u_regs[2],
 	       regs->u_regs[3]);
@@ -201,7 +201,7 @@ void show_regs(struct pt_regs *regs)
 	printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n",
 	       regs->u_regs[12], regs->u_regs[13], regs->u_regs[14],
 	       regs->u_regs[15]);
-	printk("RPC: <%pS>\n", (void *) regs->u_regs[15]);
+	printk("RPC: <%pA>\n", (void *) regs->u_regs[15]);
 	show_regwindow(regs);
 	show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]);
 }
@@ -290,7 +290,7 @@ void arch_trigger_all_cpu_backtrace(void)
 		       ((tp && tp->task) ? tp->task->pid : -1));
 
 		if (gp->tstate & TSTATE_PRIV) {
-			printk("             TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n",
+			printk("             TPC[%pA] O7[%pA] I7[%pA] RPC[%pA]\n",
 			       (void *) gp->tpc,
 			       (void *) gp->o7,
 			       (void *) gp->i7,
diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
index 9f20566..67eb41b 100644
--- a/arch/sparc/kernel/prom_common.c
+++ b/arch/sparc/kernel/prom_common.c
@@ -143,7 +143,7 @@ static int __init prom_common_nextprop(phandle node, char *prev, char *buf)
 
 unsigned int prom_early_allocated __initdata;
 
-static struct of_pdt_ops prom_sparc_ops __initdata = {
+static struct of_pdt_ops prom_sparc_ops __initconst = {
 	.nextprop = prom_common_nextprop,
 	.getproplen = prom_getproplen,
 	.getproperty = prom_getproperty,
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 7ff45e4..a58f271 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -1057,6 +1057,10 @@ long arch_ptrace(struct task_struct *child, long request,
 	return ret;
 }
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern void gr_delayed_cred_worker(void);
+#endif
+
 asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 {
 	int ret = 0;
@@ -1064,6 +1068,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 	/* do the secure computing check first */
 	secure_computing_strict(regs->u_regs[UREG_G1]);
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		ret = tracehook_report_syscall_entry(regs);
 
@@ -1084,6 +1093,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 
 asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 {
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	audit_syscall_exit(regs);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 3a8d184..49498a8 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -52,7 +52,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	if (len > TASK_SIZE - PAGE_SIZE)
 		return -ENOMEM;
 	if (!addr)
-		addr = TASK_UNMAPPED_BASE;
+		addr = current->mm->mmap_base;
 
 	info.flags = 0;
 	info.length = len;
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 708bc29..6bfdfad 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -90,13 +90,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	struct vm_area_struct * vma;
 	unsigned long task_size = TASK_SIZE;
 	int do_color_align;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	if (flags & MAP_FIXED) {
 		/* We do not accept a shared mapping if it would violate
 		 * cache aliasing constraints.
 		 */
-		if ((flags & MAP_SHARED) &&
+		if ((filp || (flags & MAP_SHARED)) &&
 		    ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
 			return -EINVAL;
 		return addr;
@@ -111,6 +112,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	if (filp || (flags & MAP_SHARED))
 		do_color_align = 1;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		if (do_color_align)
 			addr = COLOR_ALIGN(addr, pgoff);
@@ -118,22 +123,28 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
 	info.flags = 0;
 	info.length = len;
-	info.low_limit = TASK_UNMAPPED_BASE;
+	info.low_limit = mm->mmap_base;
 	info.high_limit = min(task_size, VA_EXCLUDE_START);
 	info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
 		VM_BUG_ON(addr != -ENOMEM);
 		info.low_limit = VA_EXCLUDE_END;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = task_size;
 		addr = vm_unmapped_area(&info);
 	}
@@ -151,6 +162,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	unsigned long task_size = STACK_TOP32;
 	unsigned long addr = addr0;
 	int do_color_align;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	/* This should only ever run for 32-bit processes.  */
@@ -160,7 +172,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		/* We do not accept a shared mapping if it would violate
 		 * cache aliasing constraints.
 		 */
-		if ((flags & MAP_SHARED) &&
+		if ((filp || (flags & MAP_SHARED)) &&
 		    ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
 			return -EINVAL;
 		return addr;
@@ -173,6 +185,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (filp || (flags & MAP_SHARED))
 		do_color_align = 1;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* requesting a specific address */
 	if (addr) {
 		if (do_color_align)
@@ -181,8 +197,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -192,6 +207,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	/*
@@ -204,6 +220,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = STACK_TOP32;
 		addr = vm_unmapped_area(&info);
 	}
@@ -264,6 +286,10 @@ static unsigned long mmap_rnd(void)
 {
 	unsigned long rnd = 0UL;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (current->flags & PF_RANDOMIZE) {
 		unsigned long val = get_random_int();
 		if (test_thread_flag(TIF_32BIT))
@@ -289,6 +315,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	    gap == RLIM_INFINITY ||
 	    sysctl_legacy_va_layout) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area;
 		mm->unmap_area = arch_unmap_area;
 	} else {
@@ -301,6 +333,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 			gap = (task_size / 6 * 5);
 
 		mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 		mm->unmap_area = arch_unmap_area_topdown;
 	}
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index 22a1098..6255eb9 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -52,7 +52,7 @@ sys32_rt_sigreturn:
 #endif
 	.align	32
 1:	ldx	[%g6 + TI_FLAGS], %l5
-	andcc	%l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
+	andcc	%l5, _TIF_WORK_SYSCALL, %g0
 	be,pt	%icc, rtrap
 	 nop
 	call	syscall_trace_leave
@@ -184,7 +184,7 @@ linux_sparc_syscall32:
 
 	srl	%i5, 0, %o5				! IEU1
 	srl	%i2, 0, %o2				! IEU0	Group
-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
+	andcc	%l0, _TIF_WORK_SYSCALL, %g0
 	bne,pn	%icc, linux_syscall_trace32		! CTI
 	 mov	%i0, %l5				! IEU1
 	call	%l7					! CTI	Group brk forced
@@ -207,7 +207,7 @@ linux_sparc_syscall:
 
 	mov	%i3, %o3				! IEU1
 	mov	%i4, %o4				! IEU0	Group
-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
+	andcc	%l0, _TIF_WORK_SYSCALL, %g0
 	bne,pn	%icc, linux_syscall_trace		! CTI	Group
 	 mov	%i0, %l5				! IEU0
 2:	call	%l7					! CTI	Group brk forced
@@ -223,7 +223,7 @@ ret_sys_call:
 
 	cmp	%o0, -ERESTART_RESTARTBLOCK
 	bgeu,pn	%xcc, 1f
-	 andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
+	 andcc	%l0, _TIF_WORK_SYSCALL, %g0
 	ldx	[%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
 
 2:
diff --git a/arch/sparc/kernel/sysfs.c b/arch/sparc/kernel/sysfs.c
index 654e8aa..45f431b 100644
--- a/arch/sparc/kernel/sysfs.c
+++ b/arch/sparc/kernel/sysfs.c
@@ -266,7 +266,7 @@ static int __cpuinit sysfs_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata sysfs_cpu_nb = {
+static struct notifier_block sysfs_cpu_nb = {
 	.notifier_call	= sysfs_cpu_notify,
 };
 
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index 6629829..036032d 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -44,6 +44,8 @@ static void instruction_dump(unsigned long *pc)
 #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t")
 #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t")
 
+extern void gr_handle_kernel_exploit(void);
+
 void die_if_kernel(char *str, struct pt_regs *regs)
 {
 	static int die_counter;
@@ -76,15 +78,17 @@ void die_if_kernel(char *str, struct pt_regs *regs)
 		      count++ < 30				&&
                       (((unsigned long) rw) >= PAGE_OFFSET)	&&
 		      !(((unsigned long) rw) & 0x7)) {
-			printk("Caller[%08lx]: %pS\n", rw->ins[7],
+			printk("Caller[%08lx]: %pA\n", rw->ins[7],
 			       (void *) rw->ins[7]);
 			rw = (struct reg_window32 *)rw->ins[6];
 		}
 	}
 	printk("Instruction DUMP:");
 	instruction_dump ((unsigned long *) regs->pc);
-	if(regs->psr & PSR_PS)
+	if(regs->psr & PSR_PS) {
+		gr_handle_kernel_exploit();
 		do_exit(SIGKILL);
+	}
 	do_exit(SIGSEGV);
 }
 
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index 8d38ca9..845b1d6 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -76,7 +76,7 @@ static void dump_tl1_traplog(struct tl1_traplog *p)
 		       i + 1,
 		       p->trapstack[i].tstate, p->trapstack[i].tpc,
 		       p->trapstack[i].tnpc, p->trapstack[i].tt);
-		printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc);
+		printk("TRAPLOG: TPC<%pA>\n", (void *) p->trapstack[i].tpc);
 	}
 }
 
@@ -96,6 +96,12 @@ void bad_trap(struct pt_regs *regs, long lvl)
 
 	lvl -= 0x100;
 	if (regs->tstate & TSTATE_PRIV) {
+
+#ifdef CONFIG_PAX_REFCOUNT
+		if (lvl == 6)
+			pax_report_refcount_overflow(regs);
+#endif
+
 		sprintf(buffer, "Kernel bad sw trap %lx", lvl);
 		die_if_kernel(buffer, regs);
 	}
@@ -114,11 +120,16 @@ void bad_trap(struct pt_regs *regs, long lvl)
 void bad_trap_tl1(struct pt_regs *regs, long lvl)
 {
 	char buffer[32];
-	
+
 	if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs,
 		       0, lvl, SIGTRAP) == NOTIFY_STOP)
 		return;
 
+#ifdef CONFIG_PAX_REFCOUNT
+	if (lvl == 6)
+		pax_report_refcount_overflow(regs);
+#endif
+
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 
 	sprintf (buffer, "Bad trap %lx at tl>0", lvl);
@@ -1142,7 +1153,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in
 	       regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate);
 	printk("%s" "ERROR(%d): ",
 	       (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id());
-	printk("TPC<%pS>\n", (void *) regs->tpc);
+	printk("TPC<%pA>\n", (void *) regs->tpc);
 	printk("%s" "ERROR(%d): M_SYND(%lx),  E_SYND(%lx)%s%s\n",
 	       (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(),
 	       (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT,
@@ -1749,7 +1760,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
 		       smp_processor_id(),
 		       (type & 0x1) ? 'I' : 'D',
 		       regs->tpc);
-		printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc);
+		printk(KERN_EMERG "TPC<%pA>\n", (void *) regs->tpc);
 		panic("Irrecoverable Cheetah+ parity error.");
 	}
 
@@ -1757,7 +1768,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
 	       smp_processor_id(),
 	       (type & 0x1) ? 'I' : 'D',
 	       regs->tpc);
-	printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc);
+	printk(KERN_WARNING "TPC<%pA>\n", (void *) regs->tpc);
 }
 
 struct sun4v_error_entry {
@@ -2104,9 +2115,9 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl)
 
 	printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n",
 	       regs->tpc, tl);
-	printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc);
+	printk(KERN_EMERG "SUN4V-ITLB: TPC<%pA>\n", (void *) regs->tpc);
 	printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
-	printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n",
+	printk(KERN_EMERG "SUN4V-ITLB: O7<%pA>\n",
 	       (void *) regs->u_regs[UREG_I7]);
 	printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] "
 	       "pte[%lx] error[%lx]\n",
@@ -2128,9 +2139,9 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl)
 
 	printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n",
 	       regs->tpc, tl);
-	printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc);
+	printk(KERN_EMERG "SUN4V-DTLB: TPC<%pA>\n", (void *) regs->tpc);
 	printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
-	printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n",
+	printk(KERN_EMERG "SUN4V-DTLB: O7<%pA>\n",
 	       (void *) regs->u_regs[UREG_I7]);
 	printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] "
 	       "pte[%lx] error[%lx]\n",
@@ -2336,13 +2347,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 			fp = (unsigned long)sf->fp + STACK_BIAS;
 		}
 
-		printk(" [%016lx] %pS\n", pc, (void *) pc);
+		printk(" [%016lx] %pA\n", pc, (void *) pc);
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 		if ((pc + 8UL) == (unsigned long) &return_to_handler) {
 			int index = tsk->curr_ret_stack;
 			if (tsk->ret_stack && index >= graph) {
 				pc = tsk->ret_stack[index - graph].ret;
-				printk(" [%016lx] %pS\n", pc, (void *) pc);
+				printk(" [%016lx] %pA\n", pc, (void *) pc);
 				graph++;
 			}
 		}
@@ -2367,6 +2378,8 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
 	return (struct reg_window *) (fp + STACK_BIAS);
 }
 
+extern void gr_handle_kernel_exploit(void);
+
 void die_if_kernel(char *str, struct pt_regs *regs)
 {
 	static int die_counter;
@@ -2395,7 +2408,7 @@ void die_if_kernel(char *str, struct pt_regs *regs)
 		while (rw &&
 		       count++ < 30 &&
 		       kstack_valid(tp, (unsigned long) rw)) {
-			printk("Caller[%016lx]: %pS\n", rw->ins[7],
+			printk("Caller[%016lx]: %pA\n", rw->ins[7],
 			       (void *) rw->ins[7]);
 
 			rw = kernel_stack_up(rw);
@@ -2408,8 +2421,10 @@ void die_if_kernel(char *str, struct pt_regs *regs)
 		}
 		user_instruction_dump ((unsigned int __user *) regs->tpc);
 	}
-	if (regs->tstate & TSTATE_PRIV)
+	if (regs->tstate & TSTATE_PRIV) {
+		gr_handle_kernel_exploit();
 		do_exit(SIGKILL);
+	}
 	do_exit(SIGSEGV);
 }
 EXPORT_SYMBOL(die_if_kernel);
diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
index 8201c25e..072a2a7 100644
--- a/arch/sparc/kernel/unaligned_64.c
+++ b/arch/sparc/kernel/unaligned_64.c
@@ -286,7 +286,7 @@ static void log_unaligned(struct pt_regs *regs)
 	static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
 
 	if (__ratelimit(&ratelimit)) {
-		printk("Kernel unaligned access at TPC[%lx] %pS\n",
+		printk("Kernel unaligned access at TPC[%lx] %pA\n",
 		       regs->tpc, (void *) regs->tpc);
 	}
 }
diff --git a/arch/sparc/kernel/us3_cpufreq.c b/arch/sparc/kernel/us3_cpufreq.c
index eb1624b..55100de 100644
--- a/arch/sparc/kernel/us3_cpufreq.c
+++ b/arch/sparc/kernel/us3_cpufreq.c
@@ -18,14 +18,12 @@
 #include <asm/head.h>
 #include <asm/timer.h>
 
-static struct cpufreq_driver *cpufreq_us3_driver;
-
 struct us3_freq_percpu_info {
 	struct cpufreq_frequency_table table[4];
 };
 
 /* Indexed by cpu number. */
-static struct us3_freq_percpu_info *us3_freq_table;
+static struct us3_freq_percpu_info us3_freq_table[NR_CPUS];
 
 /* UltraSPARC-III has three dividers: 1, 2, and 32.  These are controlled
  * in the Safari config register.
@@ -191,12 +189,25 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
 
 static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
 {
-	if (cpufreq_us3_driver)
-		us3_set_cpu_divider_index(policy->cpu, 0);
+	us3_set_cpu_divider_index(policy->cpu, 0);
 
 	return 0;
 }
 
+static int __init us3_freq_init(void);
+static void __exit us3_freq_exit(void);
+
+static struct cpufreq_driver cpufreq_us3_driver = {
+	.init	= us3_freq_cpu_init,
+	.verify	= us3_freq_verify,
+	.target	= us3_freq_target,
+	.get	= us3_freq_get,
+	.exit	= us3_freq_cpu_exit,
+	.owner	= THIS_MODULE,
+	.name	= "UltraSPARC-III",
+
+};
+
 static int __init us3_freq_init(void)
 {
 	unsigned long manuf, impl, ver;
@@ -213,57 +224,15 @@ static int __init us3_freq_init(void)
 	    (impl == CHEETAH_IMPL ||
 	     impl == CHEETAH_PLUS_IMPL ||
 	     impl == JAGUAR_IMPL ||
-	     impl == PANTHER_IMPL)) {
-		struct cpufreq_driver *driver;
-
-		ret = -ENOMEM;
-		driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
-		if (!driver)
-			goto err_out;
-
-		us3_freq_table = kzalloc(
-			(NR_CPUS * sizeof(struct us3_freq_percpu_info)),
-			GFP_KERNEL);
-		if (!us3_freq_table)
-			goto err_out;
-
-		driver->init = us3_freq_cpu_init;
-		driver->verify = us3_freq_verify;
-		driver->target = us3_freq_target;
-		driver->get = us3_freq_get;
-		driver->exit = us3_freq_cpu_exit;
-		driver->owner = THIS_MODULE,
-		strcpy(driver->name, "UltraSPARC-III");
-
-		cpufreq_us3_driver = driver;
-		ret = cpufreq_register_driver(driver);
-		if (ret)
-			goto err_out;
-
-		return 0;
-
-err_out:
-		if (driver) {
-			kfree(driver);
-			cpufreq_us3_driver = NULL;
-		}
-		kfree(us3_freq_table);
-		us3_freq_table = NULL;
-		return ret;
-	}
+	     impl == PANTHER_IMPL))
+		return cpufreq_register_driver(&cpufreq_us3_driver);
 
 	return -ENODEV;
 }
 
 static void __exit us3_freq_exit(void)
 {
-	if (cpufreq_us3_driver) {
-		cpufreq_unregister_driver(cpufreq_us3_driver);
-		kfree(cpufreq_us3_driver);
-		cpufreq_us3_driver = NULL;
-		kfree(us3_freq_table);
-		us3_freq_table = NULL;
-	}
+	cpufreq_unregister_driver(&cpufreq_us3_driver);
 }
 
 MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 8410065f2..4fd4ca22 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -2,7 +2,7 @@
 #
 
 asflags-y := -ansi -DST_DIV0=0x02
-ccflags-y := -Werror
+#ccflags-y := -Werror
 
 lib-$(CONFIG_SPARC32) += ashrdi3.o
 lib-$(CONFIG_SPARC32) += memcpy.o memset.o
diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
index 85c233d..68500e0 100644
--- a/arch/sparc/lib/atomic_64.S
+++ b/arch/sparc/lib/atomic_64.S
@@ -17,7 +17,12 @@
 ENTRY(atomic_add) /* %o0 = increment, %o1 = atomic_ptr */
 	BACKOFF_SETUP(%o2)
 1:	lduw	[%o1], %g1
-	add	%g1, %o0, %g7
+	addcc	%g1, %o0, %g7
+
+#ifdef CONFIG_PAX_REFCOUNT
+	tvs	%icc, 6
+#endif
+
 	cas	[%o1], %g1, %g7
 	cmp	%g1, %g7
 	bne,pn	%icc, BACKOFF_LABEL(2f, 1b)
@@ -27,10 +32,28 @@ ENTRY(atomic_add) /* %o0 = increment, %o1 = atomic_ptr */
 2:	BACKOFF_SPIN(%o2, %o3, 1b)
 ENDPROC(atomic_add)
 
+ENTRY(atomic_add_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
+	BACKOFF_SETUP(%o2)
+1:	lduw	[%o1], %g1
+	add	%g1, %o0, %g7
+	cas	[%o1], %g1, %g7
+	cmp	%g1, %g7
+	bne,pn	%icc, 2f
+	 nop
+	retl
+	 nop
+2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ENDPROC(atomic_add_unchecked)
+
 ENTRY(atomic_sub) /* %o0 = decrement, %o1 = atomic_ptr */
 	BACKOFF_SETUP(%o2)
 1:	lduw	[%o1], %g1
-	sub	%g1, %o0, %g7
+	subcc	%g1, %o0, %g7
+
+#ifdef CONFIG_PAX_REFCOUNT
+	tvs	%icc, 6
+#endif
+
 	cas	[%o1], %g1, %g7
 	cmp	%g1, %g7
 	bne,pn	%icc, BACKOFF_LABEL(2f, 1b)
@@ -40,10 +63,28 @@ ENTRY(atomic_sub) /* %o0 = decrement, %o1 = atomic_ptr */
 2:	BACKOFF_SPIN(%o2, %o3, 1b)
 ENDPROC(atomic_sub)
 
+ENTRY(atomic_sub_unchecked) /* %o0 = decrement, %o1 = atomic_ptr */
+	BACKOFF_SETUP(%o2)
+1:	lduw	[%o1], %g1
+	sub	%g1, %o0, %g7
+	cas	[%o1], %g1, %g7
+	cmp	%g1, %g7
+	bne,pn	%icc, 2f
+	 nop
+	retl
+	 nop
+2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ENDPROC(atomic_sub_unchecked)
+
 ENTRY(atomic_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
 	BACKOFF_SETUP(%o2)
 1:	lduw	[%o1], %g1
-	add	%g1, %o0, %g7
+	addcc	%g1, %o0, %g7
+
+#ifdef CONFIG_PAX_REFCOUNT
+	tvs	%icc, 6
+#endif
+
 	cas	[%o1], %g1, %g7
 	cmp	%g1, %g7
 	bne,pn	%icc, BACKOFF_LABEL(2f, 1b)
@@ -53,10 +94,29 @@ ENTRY(atomic_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
 2:	BACKOFF_SPIN(%o2, %o3, 1b)
 ENDPROC(atomic_add_ret)
 
+ENTRY(atomic_add_ret_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
+	BACKOFF_SETUP(%o2)
+1:	lduw	[%o1], %g1
+	addcc	%g1, %o0, %g7
+	cas	[%o1], %g1, %g7
+	cmp	%g1, %g7
+	bne,pn	%icc, 2f
+	 add	%g7, %o0, %g7
+	sra	%g7, 0, %o0
+	retl
+	 nop
+2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ENDPROC(atomic_add_ret_unchecked)
+
 ENTRY(atomic_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */
 	BACKOFF_SETUP(%o2)
 1:	lduw	[%o1], %g1
-	sub	%g1, %o0, %g7
+	subcc	%g1, %o0, %g7
+
+#ifdef CONFIG_PAX_REFCOUNT
+	tvs	%icc, 6
+#endif
+
 	cas	[%o1], %g1, %g7
 	cmp	%g1, %g7
 	bne,pn	%icc, BACKOFF_LABEL(2f, 1b)
@@ -69,7 +129,12 @@ ENDPROC(atomic_sub_ret)
 ENTRY(atomic64_add) /* %o0 = increment, %o1 = atomic_ptr */
 	BACKOFF_SETUP(%o2)
 1:	ldx	[%o1], %g1
-	add	%g1, %o0, %g7
+	addcc	%g1, %o0, %g7
+
+#ifdef CONFIG_PAX_REFCOUNT
+	tvs	%xcc, 6
+#endif
+
 	casx	[%o1], %g1, %g7
 	cmp	%g1, %g7
 	bne,pn	%xcc, BACKOFF_LABEL(2f, 1b)
@@ -79,10 +144,28 @@ ENTRY(atomic64_add) /* %o0 = increment, %o1 = atomic_ptr */
 2:	BACKOFF_SPIN(%o2, %o3, 1b)
 ENDPROC(atomic64_add)
 
+ENTRY(atomic64_add_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
+	BACKOFF_SETUP(%o2)
+1:	ldx	[%o1], %g1
+	addcc	%g1, %o0, %g7
+	casx	[%o1], %g1, %g7
+	cmp	%g1, %g7
+	bne,pn	%xcc, 2f
+	 nop
+	retl
+	 nop
+2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ENDPROC(atomic64_add_unchecked)
+
 ENTRY(atomic64_sub) /* %o0 = decrement, %o1 = atomic_ptr */
 	BACKOFF_SETUP(%o2)
 1:	ldx	[%o1], %g1
-	sub	%g1, %o0, %g7
+	subcc	%g1, %o0, %g7
+
+#ifdef CONFIG_PAX_REFCOUNT
+	tvs	%xcc, 6
+#endif
+
 	casx	[%o1], %g1, %g7
 	cmp	%g1, %g7
 	bne,pn	%xcc, BACKOFF_LABEL(2f, 1b)
@@ -92,10 +175,28 @@ ENTRY(atomic64_sub) /* %o0 = decrement, %o1 = atomic_ptr */
 2:	BACKOFF_SPIN(%o2, %o3, 1b)
 ENDPROC(atomic64_sub)
 
+ENTRY(atomic64_sub_unchecked) /* %o0 = decrement, %o1 = atomic_ptr */
+	BACKOFF_SETUP(%o2)
+1:	ldx	[%o1], %g1
+	subcc	%g1, %o0, %g7
+	casx	[%o1], %g1, %g7
+	cmp	%g1, %g7
+	bne,pn	%xcc, 2f
+	 nop
+	retl
+	 nop
+2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ENDPROC(atomic64_sub_unchecked)
+
 ENTRY(atomic64_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
 	BACKOFF_SETUP(%o2)
 1:	ldx	[%o1], %g1
-	add	%g1, %o0, %g7
+	addcc	%g1, %o0, %g7
+
+#ifdef CONFIG_PAX_REFCOUNT
+	tvs	%xcc, 6
+#endif
+
 	casx	[%o1], %g1, %g7
 	cmp	%g1, %g7
 	bne,pn	%xcc, BACKOFF_LABEL(2f, 1b)
@@ -105,10 +206,29 @@ ENTRY(atomic64_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
 2:	BACKOFF_SPIN(%o2, %o3, 1b)
 ENDPROC(atomic64_add_ret)
 
+ENTRY(atomic64_add_ret_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
+	BACKOFF_SETUP(%o2)
+1:	ldx	[%o1], %g1
+	addcc	%g1, %o0, %g7
+	casx	[%o1], %g1, %g7
+	cmp	%g1, %g7
+	bne,pn	%xcc, 2f
+	 add	%g7, %o0, %g7
+	mov	%g7, %o0
+	retl
+	 nop
+2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ENDPROC(atomic64_add_ret_unchecked)
+
 ENTRY(atomic64_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */
 	BACKOFF_SETUP(%o2)
 1:	ldx	[%o1], %g1
-	sub	%g1, %o0, %g7
+	subcc	%g1, %o0, %g7
+
+#ifdef CONFIG_PAX_REFCOUNT
+	tvs	%xcc, 6
+#endif
+
 	casx	[%o1], %g1, %g7
 	cmp	%g1, %g7
 	bne,pn	%xcc, BACKOFF_LABEL(2f, 1b)
diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c
index 0c4e35e..745d3e4 100644
--- a/arch/sparc/lib/ksyms.c
+++ b/arch/sparc/lib/ksyms.c
@@ -109,12 +109,18 @@ EXPORT_SYMBOL(__downgrade_write);
 
 /* Atomic counter implementation. */
 EXPORT_SYMBOL(atomic_add);
+EXPORT_SYMBOL(atomic_add_unchecked);
 EXPORT_SYMBOL(atomic_add_ret);
+EXPORT_SYMBOL(atomic_add_ret_unchecked);
 EXPORT_SYMBOL(atomic_sub);
+EXPORT_SYMBOL(atomic_sub_unchecked);
 EXPORT_SYMBOL(atomic_sub_ret);
 EXPORT_SYMBOL(atomic64_add);
+EXPORT_SYMBOL(atomic64_add_unchecked);
 EXPORT_SYMBOL(atomic64_add_ret);
+EXPORT_SYMBOL(atomic64_add_ret_unchecked);
 EXPORT_SYMBOL(atomic64_sub);
+EXPORT_SYMBOL(atomic64_sub_unchecked);
 EXPORT_SYMBOL(atomic64_sub_ret);
 EXPORT_SYMBOL(atomic64_dec_if_positive);
 
diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
index 30c3ecc..736f015 100644
--- a/arch/sparc/mm/Makefile
+++ b/arch/sparc/mm/Makefile
@@ -2,7 +2,7 @@
 #
 
 asflags-y := -ansi
-ccflags-y := -Werror
+#ccflags-y := -Werror
 
 obj-$(CONFIG_SPARC64)   += ultra.o tlb.o tsb.o gup.o
 obj-y                   += fault_$(BITS).o
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index e98bfda..ea8d221 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -21,6 +21,9 @@
 #include <linux/perf_event.h>
 #include <linux/interrupt.h>
 #include <linux/kdebug.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/compiler.h>
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
@@ -159,6 +162,277 @@ static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault)
 	return safe_compute_effective_address(regs, insn);
 }
 
+#ifdef CONFIG_PAX_PAGEEXEC
+#ifdef CONFIG_PAX_DLRESOLVE
+static void pax_emuplt_close(struct vm_area_struct *vma)
+{
+	vma->vm_mm->call_dl_resolve = 0UL;
+}
+
+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	unsigned int *kaddr;
+
+	vmf->page = alloc_page(GFP_HIGHUSER);
+	if (!vmf->page)
+		return VM_FAULT_OOM;
+
+	kaddr = kmap(vmf->page);
+	memset(kaddr, 0, PAGE_SIZE);
+	kaddr[0] = 0x9DE3BFA8U; /* save */
+	flush_dcache_page(vmf->page);
+	kunmap(vmf->page);
+	return VM_FAULT_MAJOR;
+}
+
+static const struct vm_operations_struct pax_vm_ops = {
+	.close = pax_emuplt_close,
+	.fault = pax_emuplt_fault
+};
+
+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
+{
+	int ret;
+
+	INIT_LIST_HEAD(&vma->anon_vma_chain);
+	vma->vm_mm = current->mm;
+	vma->vm_start = addr;
+	vma->vm_end = addr + PAGE_SIZE;
+	vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
+	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+	vma->vm_ops = &pax_vm_ops;
+
+	ret = insert_vm_struct(current->mm, vma);
+	if (ret)
+		return ret;
+
+	++current->mm->total_vm;
+	return 0;
+}
+#endif
+
+/*
+ * PaX: decide what to do with offenders (regs->pc = fault address)
+ *
+ * returns 1 when task should be killed
+ *         2 when patched PLT trampoline was detected
+ *         3 when unpatched PLT trampoline was detected
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+
+#ifdef CONFIG_PAX_EMUPLT
+	int err;
+
+	do { /* PaX: patched PLT emulation #1 */
+		unsigned int sethi1, sethi2, jmpl;
+
+		err = get_user(sethi1, (unsigned int *)regs->pc);
+		err |= get_user(sethi2, (unsigned int *)(regs->pc+4));
+		err |= get_user(jmpl, (unsigned int *)(regs->pc+8));
+
+		if (err)
+			break;
+
+		if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
+		    (sethi2 & 0xFFC00000U) == 0x03000000U &&
+		    (jmpl & 0xFFFFE000U) == 0x81C06000U)
+		{
+			unsigned int addr;
+
+			regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
+			addr = regs->u_regs[UREG_G1];
+			addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
+			regs->pc = addr;
+			regs->npc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #2 */
+		unsigned int ba;
+
+		err = get_user(ba, (unsigned int *)regs->pc);
+
+		if (err)
+			break;
+
+		if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
+			unsigned int addr;
+
+			if ((ba & 0xFFC00000U) == 0x30800000U)
+				addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
+			else
+				addr = regs->pc + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
+			regs->pc = addr;
+			regs->npc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #3 */
+		unsigned int sethi, bajmpl, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->pc);
+		err |= get_user(bajmpl, (unsigned int *)(regs->pc+4));
+		err |= get_user(nop, (unsigned int *)(regs->pc+8));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
+		    nop == 0x01000000U)
+		{
+			unsigned int addr;
+
+			addr = (sethi & 0x003FFFFFU) << 10;
+			regs->u_regs[UREG_G1] = addr;
+			if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
+				addr += (((bajmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
+			else
+				addr = regs->pc + ((((bajmpl | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
+			regs->pc = addr;
+			regs->npc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: unpatched PLT emulation step 1 */
+		unsigned int sethi, ba, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->pc);
+		err |= get_user(ba, (unsigned int *)(regs->pc+4));
+		err |= get_user(nop, (unsigned int *)(regs->pc+8));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
+		    nop == 0x01000000U)
+		{
+			unsigned int addr, save, call;
+
+			if ((ba & 0xFFC00000U) == 0x30800000U)
+				addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
+			else
+				addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
+
+			err = get_user(save, (unsigned int *)addr);
+			err |= get_user(call, (unsigned int *)(addr+4));
+			err |= get_user(nop, (unsigned int *)(addr+8));
+			if (err)
+				break;
+
+#ifdef CONFIG_PAX_DLRESOLVE
+			if (save == 0x9DE3BFA8U &&
+			    (call & 0xC0000000U) == 0x40000000U &&
+			    nop == 0x01000000U)
+			{
+				struct vm_area_struct *vma;
+				unsigned long call_dl_resolve;
+
+				down_read(&current->mm->mmap_sem);
+				call_dl_resolve = current->mm->call_dl_resolve;
+				up_read(&current->mm->mmap_sem);
+				if (likely(call_dl_resolve))
+					goto emulate;
+
+				vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+
+				down_write(&current->mm->mmap_sem);
+				if (current->mm->call_dl_resolve) {
+					call_dl_resolve = current->mm->call_dl_resolve;
+					up_write(&current->mm->mmap_sem);
+					if (vma)
+						kmem_cache_free(vm_area_cachep, vma);
+					goto emulate;
+				}
+
+				call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
+				if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
+					up_write(&current->mm->mmap_sem);
+					if (vma)
+						kmem_cache_free(vm_area_cachep, vma);
+					return 1;
+				}
+
+				if (pax_insert_vma(vma, call_dl_resolve)) {
+					up_write(&current->mm->mmap_sem);
+					kmem_cache_free(vm_area_cachep, vma);
+					return 1;
+				}
+
+				current->mm->call_dl_resolve = call_dl_resolve;
+				up_write(&current->mm->mmap_sem);
+
+emulate:
+				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
+				regs->pc = call_dl_resolve;
+				regs->npc = addr+4;
+				return 3;
+			}
+#endif
+
+			/* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
+			if ((save & 0xFFC00000U) == 0x05000000U &&
+			    (call & 0xFFFFE000U) == 0x85C0A000U &&
+			    nop == 0x01000000U)
+			{
+				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
+				regs->u_regs[UREG_G2] = addr + 4;
+				addr = (save & 0x003FFFFFU) << 10;
+				addr += (((call | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
+				regs->pc = addr;
+				regs->npc = addr+4;
+				return 3;
+			}
+		}
+	} while (0);
+
+	do { /* PaX: unpatched PLT emulation step 2 */
+		unsigned int save, call, nop;
+
+		err = get_user(save, (unsigned int *)(regs->pc-4));
+		err |= get_user(call, (unsigned int *)regs->pc);
+		err |= get_user(nop, (unsigned int *)(regs->pc+4));
+		if (err)
+			break;
+
+		if (save == 0x9DE3BFA8U &&
+		    (call & 0xC0000000U) == 0x40000000U &&
+		    nop == 0x01000000U)
+		{
+			unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2);
+
+			regs->u_regs[UREG_RETPC] = regs->pc;
+			regs->pc = dl_resolve;
+			regs->npc = dl_resolve+4;
+			return 3;
+		}
+	} while (0);
+#endif
+
+	return 1;
+}
+
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 8; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
 				      int text_fault)
 {
@@ -230,6 +504,24 @@ good_area:
 		if (!(vma->vm_flags & VM_WRITE))
 			goto bad_area;
 	} else {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) {
+			up_read(&mm->mmap_sem);
+			switch (pax_handle_fetch_fault(regs)) {
+
+#ifdef CONFIG_PAX_EMUPLT
+			case 2:
+			case 3:
+				return;
+#endif
+
+			}
+			pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]);
+			do_group_exit(SIGKILL);
+		}
+#endif
+
 		/* Allow reads even for write-only mappings */
 		if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
 			goto bad_area;
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index 5062ff3..e0b75f3 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -21,6 +21,9 @@
 #include <linux/kprobes.h>
 #include <linux/kdebug.h>
 #include <linux/percpu.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/compiler.h>
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
@@ -74,7 +77,7 @@ static void __kprobes bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)
 	printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n",
 	       regs->tpc);
 	printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]);
-	printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]);
+	printk("OOPS: RPC <%pA>\n", (void *) regs->u_regs[15]);
 	printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr);
 	dump_stack();
 	unhandled_fault(regs->tpc, current, regs);
@@ -270,6 +273,466 @@ static void noinline __kprobes bogus_32bit_fault_address(struct pt_regs *regs,
 	show_regs(regs);
 }
 
+#ifdef CONFIG_PAX_PAGEEXEC
+#ifdef CONFIG_PAX_DLRESOLVE
+static void pax_emuplt_close(struct vm_area_struct *vma)
+{
+	vma->vm_mm->call_dl_resolve = 0UL;
+}
+
+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	unsigned int *kaddr;
+
+	vmf->page = alloc_page(GFP_HIGHUSER);
+	if (!vmf->page)
+		return VM_FAULT_OOM;
+
+	kaddr = kmap(vmf->page);
+	memset(kaddr, 0, PAGE_SIZE);
+	kaddr[0] = 0x9DE3BFA8U; /* save */
+	flush_dcache_page(vmf->page);
+	kunmap(vmf->page);
+	return VM_FAULT_MAJOR;
+}
+
+static const struct vm_operations_struct pax_vm_ops = {
+	.close = pax_emuplt_close,
+	.fault = pax_emuplt_fault
+};
+
+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
+{
+	int ret;
+
+	INIT_LIST_HEAD(&vma->anon_vma_chain);
+	vma->vm_mm = current->mm;
+	vma->vm_start = addr;
+	vma->vm_end = addr + PAGE_SIZE;
+	vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
+	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+	vma->vm_ops = &pax_vm_ops;
+
+	ret = insert_vm_struct(current->mm, vma);
+	if (ret)
+		return ret;
+
+	++current->mm->total_vm;
+	return 0;
+}
+#endif
+
+/*
+ * PaX: decide what to do with offenders (regs->tpc = fault address)
+ *
+ * returns 1 when task should be killed
+ *         2 when patched PLT trampoline was detected
+ *         3 when unpatched PLT trampoline was detected
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+
+#ifdef CONFIG_PAX_EMUPLT
+	int err;
+
+	do { /* PaX: patched PLT emulation #1 */
+		unsigned int sethi1, sethi2, jmpl;
+
+		err = get_user(sethi1, (unsigned int *)regs->tpc);
+		err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
+		err |= get_user(jmpl, (unsigned int *)(regs->tpc+8));
+
+		if (err)
+			break;
+
+		if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
+		    (sethi2 & 0xFFC00000U) == 0x03000000U &&
+		    (jmpl & 0xFFFFE000U) == 0x81C06000U)
+		{
+			unsigned long addr;
+
+			regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
+			addr = regs->u_regs[UREG_G1];
+			addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #2 */
+		unsigned int ba;
+
+		err = get_user(ba, (unsigned int *)regs->tpc);
+
+		if (err)
+			break;
+
+		if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
+			unsigned long addr;
+
+			if ((ba & 0xFFC00000U) == 0x30800000U)
+				addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
+			else
+				addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #3 */
+		unsigned int sethi, bajmpl, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(bajmpl, (unsigned int *)(regs->tpc+4));
+		err |= get_user(nop, (unsigned int *)(regs->tpc+8));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
+		    nop == 0x01000000U)
+		{
+			unsigned long addr;
+
+			addr = (sethi & 0x003FFFFFU) << 10;
+			regs->u_regs[UREG_G1] = addr;
+			if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
+				addr += (((bajmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
+			else
+				addr = regs->tpc + ((((bajmpl | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #4 */
+		unsigned int sethi, mov1, call, mov2;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(mov1, (unsigned int *)(regs->tpc+4));
+		err |= get_user(call, (unsigned int *)(regs->tpc+8));
+		err |= get_user(mov2, (unsigned int *)(regs->tpc+12));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    mov1 == 0x8210000FU &&
+		    (call & 0xC0000000U) == 0x40000000U &&
+		    mov2 == 0x9E100001U)
+		{
+			unsigned long addr;
+
+			regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC];
+			addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #5 */
+		unsigned int sethi, sethi1, sethi2, or1, or2, sllx, jmpl, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
+		err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
+		err |= get_user(or1, (unsigned int *)(regs->tpc+12));
+		err |= get_user(or2, (unsigned int *)(regs->tpc+16));
+		err |= get_user(sllx, (unsigned int *)(regs->tpc+20));
+		err |= get_user(jmpl, (unsigned int *)(regs->tpc+24));
+		err |= get_user(nop, (unsigned int *)(regs->tpc+28));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    (sethi1 & 0xFFC00000U) == 0x03000000U &&
+		    (sethi2 & 0xFFC00000U) == 0x0B000000U &&
+		    (or1 & 0xFFFFE000U) == 0x82106000U &&
+		    (or2 & 0xFFFFE000U) == 0x8A116000U &&
+		    sllx == 0x83287020U &&
+		    jmpl == 0x81C04005U &&
+		    nop == 0x01000000U)
+		{
+			unsigned long addr;
+
+			regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
+			regs->u_regs[UREG_G1] <<= 32;
+			regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
+			addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #6 */
+		unsigned int sethi, sethi1, sethi2, sllx, or,  jmpl, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
+		err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
+		err |= get_user(sllx, (unsigned int *)(regs->tpc+12));
+		err |= get_user(or, (unsigned int *)(regs->tpc+16));
+		err |= get_user(jmpl, (unsigned int *)(regs->tpc+20));
+		err |= get_user(nop, (unsigned int *)(regs->tpc+24));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    (sethi1 & 0xFFC00000U) == 0x03000000U &&
+		    (sethi2 & 0xFFC00000U) == 0x0B000000U &&
+		    sllx == 0x83287020U &&
+		    (or & 0xFFFFE000U) == 0x8A116000U &&
+		    jmpl == 0x81C04005U &&
+		    nop == 0x01000000U)
+		{
+			unsigned long addr;
+
+			regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10;
+			regs->u_regs[UREG_G1] <<= 32;
+			regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU);
+			addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: unpatched PLT emulation step 1 */
+		unsigned int sethi, ba, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(ba, (unsigned int *)(regs->tpc+4));
+		err |= get_user(nop, (unsigned int *)(regs->tpc+8));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
+		    nop == 0x01000000U)
+		{
+			unsigned long addr;
+			unsigned int save, call;
+			unsigned int sethi1, sethi2, or1, or2, sllx, add, jmpl;
+
+			if ((ba & 0xFFC00000U) == 0x30800000U)
+				addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
+			else
+				addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			err = get_user(save, (unsigned int *)addr);
+			err |= get_user(call, (unsigned int *)(addr+4));
+			err |= get_user(nop, (unsigned int *)(addr+8));
+			if (err)
+				break;
+
+#ifdef CONFIG_PAX_DLRESOLVE
+			if (save == 0x9DE3BFA8U &&
+			    (call & 0xC0000000U) == 0x40000000U &&
+			    nop == 0x01000000U)
+			{
+				struct vm_area_struct *vma;
+				unsigned long call_dl_resolve;
+
+				down_read(&current->mm->mmap_sem);
+				call_dl_resolve = current->mm->call_dl_resolve;
+				up_read(&current->mm->mmap_sem);
+				if (likely(call_dl_resolve))
+					goto emulate;
+
+				vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+
+				down_write(&current->mm->mmap_sem);
+				if (current->mm->call_dl_resolve) {
+					call_dl_resolve = current->mm->call_dl_resolve;
+					up_write(&current->mm->mmap_sem);
+					if (vma)
+						kmem_cache_free(vm_area_cachep, vma);
+					goto emulate;
+				}
+
+				call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
+				if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
+					up_write(&current->mm->mmap_sem);
+					if (vma)
+						kmem_cache_free(vm_area_cachep, vma);
+					return 1;
+				}
+
+				if (pax_insert_vma(vma, call_dl_resolve)) {
+					up_write(&current->mm->mmap_sem);
+					kmem_cache_free(vm_area_cachep, vma);
+					return 1;
+				}
+
+				current->mm->call_dl_resolve = call_dl_resolve;
+				up_write(&current->mm->mmap_sem);
+
+emulate:
+				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
+				regs->tpc = call_dl_resolve;
+				regs->tnpc = addr+4;
+				return 3;
+			}
+#endif
+
+			/* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
+			if ((save & 0xFFC00000U) == 0x05000000U &&
+			    (call & 0xFFFFE000U) == 0x85C0A000U &&
+			    nop == 0x01000000U)
+			{
+				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
+				regs->u_regs[UREG_G2] = addr + 4;
+				addr = (save & 0x003FFFFFU) << 10;
+				addr += (((call | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
+
+				if (test_thread_flag(TIF_32BIT))
+					addr &= 0xFFFFFFFFUL;
+
+				regs->tpc = addr;
+				regs->tnpc = addr+4;
+				return 3;
+			}
+
+			/* PaX: 64-bit PLT stub */
+			err = get_user(sethi1, (unsigned int *)addr);
+			err |= get_user(sethi2, (unsigned int *)(addr+4));
+			err |= get_user(or1, (unsigned int *)(addr+8));
+			err |= get_user(or2, (unsigned int *)(addr+12));
+			err |= get_user(sllx, (unsigned int *)(addr+16));
+			err |= get_user(add, (unsigned int *)(addr+20));
+			err |= get_user(jmpl, (unsigned int *)(addr+24));
+			err |= get_user(nop, (unsigned int *)(addr+28));
+			if (err)
+				break;
+
+			if ((sethi1 & 0xFFC00000U) == 0x09000000U &&
+			    (sethi2 & 0xFFC00000U) == 0x0B000000U &&
+			    (or1 & 0xFFFFE000U) == 0x88112000U &&
+			    (or2 & 0xFFFFE000U) == 0x8A116000U &&
+			    sllx == 0x89293020U &&
+			    add == 0x8A010005U &&
+			    jmpl == 0x89C14000U &&
+			    nop == 0x01000000U)
+			{
+				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
+				regs->u_regs[UREG_G4] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
+				regs->u_regs[UREG_G4] <<= 32;
+				regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
+				regs->u_regs[UREG_G5] += regs->u_regs[UREG_G4];
+				regs->u_regs[UREG_G4] = addr + 24;
+				addr = regs->u_regs[UREG_G5];
+				regs->tpc = addr;
+				regs->tnpc = addr+4;
+				return 3;
+			}
+		}
+	} while (0);
+
+#ifdef CONFIG_PAX_DLRESOLVE
+	do { /* PaX: unpatched PLT emulation step 2 */
+		unsigned int save, call, nop;
+
+		err = get_user(save, (unsigned int *)(regs->tpc-4));
+		err |= get_user(call, (unsigned int *)regs->tpc);
+		err |= get_user(nop, (unsigned int *)(regs->tpc+4));
+		if (err)
+			break;
+
+		if (save == 0x9DE3BFA8U &&
+		    (call & 0xC0000000U) == 0x40000000U &&
+		    nop == 0x01000000U)
+		{
+			unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				dl_resolve &= 0xFFFFFFFFUL;
+
+			regs->u_regs[UREG_RETPC] = regs->tpc;
+			regs->tpc = dl_resolve;
+			regs->tnpc = dl_resolve+4;
+			return 3;
+		}
+	} while (0);
+#endif
+
+	do { /* PaX: patched PLT emulation #7, must be AFTER the unpatched PLT emulation */
+		unsigned int sethi, ba, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(ba, (unsigned int *)(regs->tpc+4));
+		err |= get_user(nop, (unsigned int *)(regs->tpc+8));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    (ba & 0xFFF00000U) == 0x30600000U &&
+		    nop == 0x01000000U)
+		{
+			unsigned long addr;
+
+			addr = (sethi & 0x003FFFFFU) << 10;
+			regs->u_regs[UREG_G1] = addr;
+			addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+#endif
+
+	return 1;
+}
+
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 8; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
 {
 	struct mm_struct *mm = current->mm;
@@ -341,6 +804,29 @@ retry:
 	if (!vma)
 		goto bad_area;
 
+#ifdef CONFIG_PAX_PAGEEXEC
+	/* PaX: detect ITLB misses on non-exec pages */
+	if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address &&
+	    !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB))
+	{
+		if (address != regs->tpc)
+			goto good_area;
+
+		up_read(&mm->mmap_sem);
+		switch (pax_handle_fetch_fault(regs)) {
+
+#ifdef CONFIG_PAX_EMUPLT
+		case 2:
+		case 3:
+			return;
+#endif
+
+		}
+		pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS));
+		do_group_exit(SIGKILL);
+	}
+#endif
+
 	/* Pure DTLB misses do not tell us whether the fault causing
 	 * load/store/atomic was a write or not, it only says that there
 	 * was no match.  So in such a case we (carefully) read the
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index d2b5944..bd813f2 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -38,7 +38,7 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
 
 	info.flags = 0;
 	info.length = len;
-	info.low_limit = TASK_UNMAPPED_BASE;
+	info.low_limit = mm->mmap_base;
 	info.high_limit = min(task_size, VA_EXCLUDE_START);
 	info.align_mask = PAGE_MASK & ~HPAGE_MASK;
 	info.align_offset = 0;
@@ -47,6 +47,12 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
 	if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
 		VM_BUG_ON(addr != -ENOMEM);
 		info.low_limit = VA_EXCLUDE_END;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = task_size;
 		addr = vm_unmapped_area(&info);
 	}
@@ -85,6 +91,12 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = STACK_TOP32;
 		addr = vm_unmapped_area(&info);
 	}
@@ -99,6 +111,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned long task_size = TASK_SIZE;
+	unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
 
 	if (test_thread_flag(TIF_32BIT))
 		task_size = STACK_TOP32;
@@ -114,11 +127,14 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 		return addr;
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		addr = ALIGN(addr, HPAGE_SIZE);
 		vma = find_vma(mm, addr);
-		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
index f4500c6..889656c 100644
--- a/arch/tile/include/asm/atomic_64.h
+++ b/arch/tile/include/asm/atomic_64.h
@@ -143,6 +143,16 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
 
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 /* Atomic dec and inc don't implement barrier, so provide them if needed. */
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
diff --git a/arch/tile/include/asm/cache.h b/arch/tile/include/asm/cache.h
index a9a5299..0fce79e 100644
--- a/arch/tile/include/asm/cache.h
+++ b/arch/tile/include/asm/cache.h
@@ -15,11 +15,12 @@
 #ifndef _ASM_TILE_CACHE_H
 #define _ASM_TILE_CACHE_H
 
+#include <linux/const.h>
 #include <arch/chip.h>
 
 /* bytes per L1 data cache line */
 #define L1_CACHE_SHIFT		CHIP_L1D_LOG_LINE_SIZE()
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 /* bytes per L2 cache line */
 #define L2_CACHE_SHIFT		CHIP_L2_LOG_LINE_SIZE()
diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
index 9ab078a..d6635c2 100644
--- a/arch/tile/include/asm/uaccess.h
+++ b/arch/tile/include/asm/uaccess.h
@@ -403,9 +403,9 @@ static inline unsigned long __must_check copy_from_user(void *to,
 					  const void __user *from,
 					  unsigned long n)
 {
-	int sz = __compiletime_object_size(to);
+	size_t sz = __compiletime_object_size(to);
 
-	if (likely(sz == -1 || sz >= n))
+	if (likely(sz == (size_t)-1 || sz >= n))
 		n = _copy_from_user(to, from, n);
 	else
 		copy_from_user_overflow();
diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
index 650ccff..45fe2d6 100644
--- a/arch/tile/mm/hugetlbpage.c
+++ b/arch/tile/mm/hugetlbpage.c
@@ -239,6 +239,7 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
+	info.threadstack_offset = 0;
 	return vm_unmapped_area(&info);
 }
 
@@ -256,6 +257,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 	info.high_limit = current->mm->mmap_base;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
+	info.threadstack_offset = 0;
 	addr = vm_unmapped_area(&info);
 
 	/*
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 133f7de..1d6f2f1 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -62,6 +62,10 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
 	$(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
 	$(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 -idirafter include
 
+ifdef CONSTIFY_PLUGIN
+USER_CFLAGS	+= -fplugin-arg-constify_plugin-no-constify
+endif
+
 #This will adjust *FLAGS accordingly to the platform.
 include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
 
diff --git a/arch/um/defconfig b/arch/um/defconfig
index 08107a7..ab22afe 100644
--- a/arch/um/defconfig
+++ b/arch/um/defconfig
@@ -51,7 +51,6 @@ CONFIG_X86_CMPXCHG=y
 CONFIG_X86_L1_CACHE_SHIFT=5
 CONFIG_X86_XADD=y
 CONFIG_X86_PPRO_FENCE=y
-CONFIG_X86_WP_WORKS_OK=y
 CONFIG_X86_INVLPG=y
 CONFIG_X86_BSWAP=y
 CONFIG_X86_POPAD_OK=y
diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h
index 19e1bdd..3665b77 100644
--- a/arch/um/include/asm/cache.h
+++ b/arch/um/include/asm/cache.h
@@ -1,6 +1,7 @@
 #ifndef __UM_CACHE_H
 #define __UM_CACHE_H
 
+#include <linux/const.h>
 
 #if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT)
 # define L1_CACHE_SHIFT		(CONFIG_X86_L1_CACHE_SHIFT)
@@ -12,6 +13,6 @@
 # define L1_CACHE_SHIFT		5
 #endif
 
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #endif
diff --git a/arch/um/include/asm/kmap_types.h b/arch/um/include/asm/kmap_types.h
index 2e0a6b1..a64d0f5 100644
--- a/arch/um/include/asm/kmap_types.h
+++ b/arch/um/include/asm/kmap_types.h
@@ -8,6 +8,6 @@
 
 /* No more #include "asm/arch/kmap_types.h" ! */
 
-#define KM_TYPE_NR 14
+#define KM_TYPE_NR 15
 
 #endif
diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h
index 5ff53d9..5850cdf 100644
--- a/arch/um/include/asm/page.h
+++ b/arch/um/include/asm/page.h
@@ -14,6 +14,9 @@
 #define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
+#define ktla_ktva(addr)			(addr)
+#define ktva_ktla(addr)			(addr)
+
 #ifndef __ASSEMBLY__
 
 struct page;
diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h
index 0032f92..cd151e0 100644
--- a/arch/um/include/asm/pgtable-3level.h
+++ b/arch/um/include/asm/pgtable-3level.h
@@ -58,6 +58,7 @@
 #define pud_present(x)	(pud_val(x) & _PAGE_PRESENT)
 #define pud_populate(mm, pud, pmd) \
 	set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd)))
+#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
 
 #ifdef CONFIG_64BIT
 #define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval))
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index b462b13..e7a19aa 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -386,22 +386,6 @@ int singlestepping(void * t)
 	return 2;
 }
 
-/*
- * Only x86 and x86_64 have an arch_align_stack().
- * All other arches have "#define arch_align_stack(x) (x)"
- * in their asm/system.h
- * As this is included in UML from asm-um/system-generic.h,
- * we can use it to behave as the subarch does.
- */
-#ifndef arch_align_stack
-unsigned long arch_align_stack(unsigned long sp)
-{
-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() % 8192;
-	return sp & ~0xf;
-}
-#endif
-
 unsigned long get_wchan(struct task_struct *p)
 {
 	unsigned long stack_page, sp, ip;
diff --git a/arch/unicore32/include/asm/cache.h b/arch/unicore32/include/asm/cache.h
index ad8f795..2c7eec6 100644
--- a/arch/unicore32/include/asm/cache.h
+++ b/arch/unicore32/include/asm/cache.h
@@ -12,8 +12,10 @@
 #ifndef __UNICORE_CACHE_H__
 #define __UNICORE_CACHE_H__
 
-#define L1_CACHE_SHIFT		(5)
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#include <linux/const.h>
+
+#define L1_CACHE_SHIFT		5
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 /*
  * Memory returned by kmalloc() may be used for DMA, so we must make
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6ef2a37..74ad6ad 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -243,7 +243,7 @@ config X86_HT
 
 config X86_32_LAZY_GS
 	def_bool y
-	depends on X86_32 && !CC_STACKPROTECTOR
+	depends on X86_32 && !CC_STACKPROTECTOR && !PAX_MEMORY_UDEREF
 
 config ARCH_HWEIGHT_CFLAGS
 	string
@@ -1076,6 +1076,7 @@ config MICROCODE_EARLY
 
 config X86_MSR
 	tristate "/dev/cpu/*/msr - Model-specific register support"
+	depends on !GRKERNSEC_KMEM
 	---help---
 	  This device gives privileged processes access to the x86
 	  Model-Specific Registers (MSRs).  It is a character device with
@@ -1099,7 +1100,7 @@ choice
 
 config NOHIGHMEM
 	bool "off"
-	depends on !X86_NUMAQ
+	depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
 	---help---
 	  Linux can use up to 64 Gigabytes of physical memory on x86 systems.
 	  However, the address space of 32-bit x86 processors is only 4
@@ -1136,7 +1137,7 @@ config NOHIGHMEM
 
 config HIGHMEM4G
 	bool "4GB"
-	depends on !X86_NUMAQ
+	depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
 	---help---
 	  Select this if you have a 32-bit processor and between 1 and 4
 	  gigabytes of physical RAM.
@@ -1189,7 +1190,7 @@ config PAGE_OFFSET
 	hex
 	default 0xB0000000 if VMSPLIT_3G_OPT
 	default 0x80000000 if VMSPLIT_2G
-	default 0x78000000 if VMSPLIT_2G_OPT
+	default 0x70000000 if VMSPLIT_2G_OPT
 	default 0x40000000 if VMSPLIT_1G
 	default 0xC0000000
 	depends on X86_32
@@ -1587,6 +1588,7 @@ config SECCOMP
 
 config CC_STACKPROTECTOR
 	bool "Enable -fstack-protector buffer overflow detection"
+	depends on X86_64 || !PAX_MEMORY_UDEREF
 	---help---
 	  This option turns on the -fstack-protector GCC feature. This
 	  feature puts, at the beginning of functions, a canary value on
@@ -1706,6 +1708,8 @@ config X86_NEED_RELOCS
 config PHYSICAL_ALIGN
 	hex "Alignment value to which kernel should be aligned" if X86_32
 	default "0x1000000"
+	range 0x200000 0x1000000 if PAX_KERNEXEC && X86_PAE
+	range 0x400000 0x1000000 if PAX_KERNEXEC && !X86_PAE
 	range 0x2000 0x1000000
 	---help---
 	  This value puts the alignment restrictions on physical address
@@ -1781,9 +1785,10 @@ config DEBUG_HOTPLUG_CPU0
 	  If unsure, say N.
 
 config COMPAT_VDSO
-	def_bool y
+	def_bool n
 	prompt "Compat VDSO support"
 	depends on X86_32 || IA32_EMULATION
+	depends on !PAX_PAGEEXEC && !PAX_SEGMEXEC && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
 	---help---
 	  Map the 32-bit VDSO to the predictable old-style address too.
 
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index c026cca..14657ae 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -319,7 +319,7 @@ config X86_PPRO_FENCE
 
 config X86_F00F_BUG
 	def_bool y
-	depends on M586MMX || M586TSC || M586 || M486
+	depends on (M586MMX || M586TSC || M586 || M486) && !PAX_KERNEXEC
 
 config X86_INVD_BUG
 	def_bool y
@@ -327,7 +327,7 @@ config X86_INVD_BUG
 
 config X86_ALIGNMENT_16
 	def_bool y
-	depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
+	depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
 
 config X86_INTEL_USERCOPY
 	def_bool y
@@ -373,7 +373,7 @@ config X86_CMPXCHG64
 # generates cmov.
 config X86_CMOV
 	def_bool y
-	depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
+	depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
 
 config X86_MINIMUM_CPU_FAMILY
 	int
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index b322f12..652d0d9 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -84,7 +84,7 @@ config X86_PTDUMP
 config DEBUG_RODATA
 	bool "Write protect kernel read-only data structures"
 	default y
-	depends on DEBUG_KERNEL
+	depends on DEBUG_KERNEL && BROKEN
 	---help---
 	  Mark the kernel read-only data as write-protected in the pagetables,
 	  in order to catch accidental (and incorrect) writes to such const
@@ -102,7 +102,7 @@ config DEBUG_RODATA_TEST
 
 config DEBUG_SET_MODULE_RONX
 	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES
+	depends on MODULES && BROKEN
 	---help---
 	  This option helps catch unintended modifications to loadable
 	  kernel module's text and read-only data. It also prevents execution
@@ -294,7 +294,7 @@ config OPTIMIZE_INLINING
 
 config DEBUG_STRICT_USER_COPY_CHECKS
 	bool "Strict copy size checks"
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING && !PAX_SIZE_OVERFLOW
 	---help---
 	  Enabling this option turns a certain set of sanity checks for user
 	  copy operations into compile time failures.
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 5c47726..8c4fa67 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -54,6 +54,7 @@ else
         UTS_MACHINE := x86_64
         CHECKFLAGS += -D__x86_64__ -m64
 
+        biarch := $(call cc-option,-m64)
         KBUILD_AFLAGS += -m64
         KBUILD_CFLAGS += -m64
 
@@ -234,3 +235,12 @@ define archhelp
   echo  '                  FDARGS="..."  arguments for the booted kernel'
   echo  '                  FDINITRD=file initrd for the booted kernel'
 endef
+
+define OLD_LD
+
+*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils.
+*** Please upgrade your binutils to 2.18 or newer
+endef
+
+archprepare:
+	$(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD)))
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 379814b..add62ce 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -65,6 +65,9 @@ KBUILD_CFLAGS	:= $(USERINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
 		   $(call cc-option, -fno-stack-protector) \
 		   $(call cc-option, -mpreferred-stack-boundary=2)
 KBUILD_CFLAGS	+= $(call cc-option, -m32)
+ifdef CONSTIFY_PLUGIN
+KBUILD_CFLAGS	+= -fplugin-arg-constify_plugin-no-constify
+endif
 KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
 GCOV_PROFILE := n
 
diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h
index 878e4b9..20537ab 100644
--- a/arch/x86/boot/bitops.h
+++ b/arch/x86/boot/bitops.h
@@ -26,7 +26,7 @@ static inline int variable_test_bit(int nr, const void *addr)
 	u8 v;
 	const u32 *p = (const u32 *)addr;
 
-	asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
+	asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
 	return v;
 }
 
@@ -37,7 +37,7 @@ static inline int variable_test_bit(int nr, const void *addr)
 
 static inline void set_bit(int nr, void *addr)
 {
-	asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
+	asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
 }
 
 #endif /* BOOT_BITOPS_H */
diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
index 5b75319..331a4ca 100644
--- a/arch/x86/boot/boot.h
+++ b/arch/x86/boot/boot.h
@@ -85,7 +85,7 @@ static inline void io_delay(void)
 static inline u16 ds(void)
 {
 	u16 seg;
-	asm("movw %%ds,%0" : "=rm" (seg));
+	asm volatile("movw %%ds,%0" : "=rm" (seg));
 	return seg;
 }
 
@@ -181,7 +181,7 @@ static inline void wrgs32(u32 v, addr_t addr)
 static inline int memcmp(const void *s1, const void *s2, size_t len)
 {
 	u8 diff;
-	asm("repe; cmpsb; setnz %0"
+	asm volatile("repe; cmpsb; setnz %0"
 	    : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
 	return diff;
 }
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 5ef205c..342191d 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -14,6 +14,9 @@ cflags-$(CONFIG_X86_64) := -mcmodel=small
 KBUILD_CFLAGS += $(cflags-y)
 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
+ifdef CONSTIFY_PLUGIN
+KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
+endif
 
 KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
 GCOV_PROFILE := n
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 35ee62f..b6609b6 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -150,7 +150,6 @@ again:
 		*addr = max_addr;
 	}
 
-free_pool:
 	efi_call_phys1(sys_table->boottime->free_pool, map);
 
 fail:
@@ -214,7 +213,6 @@ static efi_status_t low_alloc(unsigned long size, unsigned long align,
 	if (i == map_size / desc_size)
 		status = EFI_NOT_FOUND;
 
-free_pool:
 	efi_call_phys1(sys_table->boottime->free_pool, map);
 fail:
 	return status;
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 1e3184f..0d11e2e 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -118,7 +118,7 @@ preferred_addr:
 	notl	%eax
 	andl    %eax, %ebx
 #else
-	movl	$LOAD_PHYSICAL_ADDR, %ebx
+	movl	$____LOAD_PHYSICAL_ADDR, %ebx
 #endif
 
 	/* Target address to relocate to for decompression */
@@ -204,7 +204,7 @@ relocated:
  * and where it was actually loaded.
  */
 	movl	%ebp, %ebx
-	subl	$LOAD_PHYSICAL_ADDR, %ebx
+	subl	$____LOAD_PHYSICAL_ADDR, %ebx
 	jz	2f	/* Nothing to be done if loaded at compiled addr. */
 /*
  * Process relocations.
@@ -212,8 +212,7 @@ relocated:
 
 1:	subl	$4, %edi
 	movl	(%edi), %ecx
-	testl	%ecx, %ecx
-	jz	2f
+	jecxz	2f
 	addl	%ebx, -__PAGE_OFFSET(%ebx, %ecx)
 	jmp	1b
 2:
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index c1d383d..57ab51c 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -97,7 +97,7 @@ ENTRY(startup_32)
 	notl	%eax
 	andl	%eax, %ebx
 #else
-	movl	$LOAD_PHYSICAL_ADDR, %ebx
+	movl	$____LOAD_PHYSICAL_ADDR, %ebx
 #endif
 
 	/* Target address to relocate to for decompression */
@@ -272,7 +272,7 @@ preferred_addr:
 	notq	%rax
 	andq	%rax, %rbp
 #else
-	movq	$LOAD_PHYSICAL_ADDR, %rbp
+	movq	$____LOAD_PHYSICAL_ADDR, %rbp
 #endif
 
 	/* Target address to relocate to for decompression */
@@ -363,8 +363,8 @@ gdt:
 	.long	gdt
 	.word	0
 	.quad	0x0000000000000000	/* NULL descriptor */
-	.quad	0x00af9a000000ffff	/* __KERNEL_CS */
-	.quad	0x00cf92000000ffff	/* __KERNEL_DS */
+	.quad	0x00af9b000000ffff	/* __KERNEL_CS */
+	.quad	0x00cf93000000ffff	/* __KERNEL_DS */
 	.quad	0x0080890000000000	/* TS descriptor */
 	.quad   0x0000000000000000	/* TS continued */
 gdt_end:
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 7cb56c6..d382d84 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -303,7 +303,7 @@ static void parse_elf(void *output)
 		case PT_LOAD:
 #ifdef CONFIG_RELOCATABLE
 			dest = output;
-			dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
+			dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR);
 #else
 			dest = (void *)(phdr->p_paddr);
 #endif
@@ -354,7 +354,7 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
 		error("Destination address too large");
 #endif
 #ifndef CONFIG_RELOCATABLE
-	if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
+	if ((unsigned long)output != ____LOAD_PHYSICAL_ADDR)
 		error("Wrong destination address");
 #endif
 
diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c
index 4d3ff03..e4972ff 100644
--- a/arch/x86/boot/cpucheck.c
+++ b/arch/x86/boot/cpucheck.c
@@ -74,7 +74,7 @@ static int has_fpu(void)
 	u16 fcw = -1, fsw = -1;
 	u32 cr0;
 
-	asm("movl %%cr0,%0" : "=r" (cr0));
+	asm volatile("movl %%cr0,%0" : "=r" (cr0));
 	if (cr0 & (X86_CR0_EM|X86_CR0_TS)) {
 		cr0 &= ~(X86_CR0_EM|X86_CR0_TS);
 		asm volatile("movl %0,%%cr0" : : "r" (cr0));
@@ -90,7 +90,7 @@ static int has_eflag(u32 mask)
 {
 	u32 f0, f1;
 
-	asm("pushfl ; "
+	asm volatile("pushfl ; "
 	    "pushfl ; "
 	    "popl %0 ; "
 	    "movl %0,%1 ; "
@@ -115,7 +115,7 @@ static void get_flags(void)
 		set_bit(X86_FEATURE_FPU, cpu.flags);
 
 	if (has_eflag(X86_EFLAGS_ID)) {
-		asm("cpuid"
+		asm volatile("cpuid"
 		    : "=a" (max_intel_level),
 		      "=b" (cpu_vendor[0]),
 		      "=d" (cpu_vendor[1]),
@@ -124,7 +124,7 @@ static void get_flags(void)
 
 		if (max_intel_level >= 0x00000001 &&
 		    max_intel_level <= 0x0000ffff) {
-			asm("cpuid"
+			asm volatile("cpuid"
 			    : "=a" (tfms),
 			      "=c" (cpu.flags[4]),
 			      "=d" (cpu.flags[0])
@@ -136,7 +136,7 @@ static void get_flags(void)
 				cpu.model += ((tfms >> 16) & 0xf) << 4;
 		}
 
-		asm("cpuid"
+		asm volatile("cpuid"
 		    : "=a" (max_amd_level)
 		    : "a" (0x80000000)
 		    : "ebx", "ecx", "edx");
@@ -144,7 +144,7 @@ static void get_flags(void)
 		if (max_amd_level >= 0x80000001 &&
 		    max_amd_level <= 0x8000ffff) {
 			u32 eax = 0x80000001;
-			asm("cpuid"
+			asm volatile("cpuid"
 			    : "+a" (eax),
 			      "=c" (cpu.flags[6]),
 			      "=d" (cpu.flags[1])
@@ -203,9 +203,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
 		u32 ecx = MSR_K7_HWCR;
 		u32 eax, edx;
 
-		asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+		asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
 		eax &= ~(1 << 15);
-		asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+		asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
 
 		get_flags();	/* Make sure it really did something */
 		err = check_flags();
@@ -218,9 +218,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
 		u32 ecx = MSR_VIA_FCR;
 		u32 eax, edx;
 
-		asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+		asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
 		eax |= (1<<1)|(1<<7);
-		asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+		asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
 
 		set_bit(X86_FEATURE_CX8, cpu.flags);
 		err = check_flags();
@@ -231,12 +231,12 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
 		u32 eax, edx;
 		u32 level = 1;
 
-		asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
-		asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
-		asm("cpuid"
+		asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+		asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
+		asm volatile("cpuid"
 		    : "+a" (level), "=d" (cpu.flags[0])
 		    : : "ecx", "ebx");
-		asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+		asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
 
 		err = check_flags();
 	}
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 9ec06a1..2c25e79 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -409,10 +409,14 @@ setup_data:		.quad 0			# 64-bit physical pointer to
 						# single linked list of
 						# struct setup_data
 
-pref_address:		.quad LOAD_PHYSICAL_ADDR	# preferred load addr
+pref_address:		.quad ____LOAD_PHYSICAL_ADDR	# preferred load addr
 
 #define ZO_INIT_SIZE	(ZO__end - ZO_startup_32 + ZO_z_extract_offset)
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+#define VO_INIT_SIZE	(VO__end - VO__text - __PAGE_OFFSET - ____LOAD_PHYSICAL_ADDR)
+#else
 #define VO_INIT_SIZE	(VO__end - VO__text)
+#endif
 #if ZO_INIT_SIZE > VO_INIT_SIZE
 #define INIT_SIZE ZO_INIT_SIZE
 #else
diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
index db75d07..8e6d0af 100644
--- a/arch/x86/boot/memory.c
+++ b/arch/x86/boot/memory.c
@@ -19,7 +19,7 @@
 
 static int detect_memory_e820(void)
 {
-	int count = 0;
+	unsigned int count = 0;
 	struct biosregs ireg, oreg;
 	struct e820entry *desc = boot_params.e820_map;
 	static struct e820entry buf; /* static so it is zeroed */
diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
index 11e8c6e..fdbb1ed 100644
--- a/arch/x86/boot/video-vesa.c
+++ b/arch/x86/boot/video-vesa.c
@@ -200,6 +200,7 @@ static void vesa_store_pm_info(void)
 
 	boot_params.screen_info.vesapm_seg = oreg.es;
 	boot_params.screen_info.vesapm_off = oreg.di;
+	boot_params.screen_info.vesapm_size = oreg.cx;
 }
 
 /*
diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
index 43eda28..5ab5fdb 100644
--- a/arch/x86/boot/video.c
+++ b/arch/x86/boot/video.c
@@ -96,7 +96,7 @@ static void store_mode_params(void)
 static unsigned int get_entry(void)
 {
 	char entry_buf[4];
-	int i, len = 0;
+	unsigned int i, len = 0;
 	int key;
 	unsigned int v;
 
diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
index 9105655..5e37f27 100644
--- a/arch/x86/crypto/aes-x86_64-asm_64.S
+++ b/arch/x86/crypto/aes-x86_64-asm_64.S
@@ -8,6 +8,8 @@
  * including this sentence is retained in full.
  */
 
+#include <asm/alternative-asm.h>
+
 .extern crypto_ft_tab
 .extern crypto_it_tab
 .extern crypto_fl_tab
@@ -70,6 +72,8 @@
 	je	B192;			\
 	leaq	32(r9),r9;
 
+#define ret	pax_force_retaddr 0, 1; ret
+
 #define epilogue(FUNC,r1,r2,r3,r4,r5,r6,r7,r8,r9) \
 	movq	r1,r2;			\
 	movq	r3,r4;			\
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index 04b7977..402f223 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -31,6 +31,7 @@
 
 #include <linux/linkage.h>
 #include <asm/inst.h>
+#include <asm/alternative-asm.h>
 
 #ifdef __x86_64__
 .data
@@ -1435,6 +1436,7 @@ _return_T_done_decrypt:
 	pop	%r14
 	pop	%r13
 	pop	%r12
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(aesni_gcm_dec)
 
@@ -1699,6 +1701,7 @@ _return_T_done_encrypt:
 	pop	%r14
 	pop	%r13
 	pop	%r12
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(aesni_gcm_enc)
 
@@ -1716,6 +1719,7 @@ _key_expansion_256a:
 	pxor %xmm1, %xmm0
 	movaps %xmm0, (TKEYP)
 	add $0x10, TKEYP
+	pax_force_retaddr_bts
 	ret
 ENDPROC(_key_expansion_128)
 ENDPROC(_key_expansion_256a)
@@ -1742,6 +1746,7 @@ _key_expansion_192a:
 	shufps $0b01001110, %xmm2, %xmm1
 	movaps %xmm1, 0x10(TKEYP)
 	add $0x20, TKEYP
+	pax_force_retaddr_bts
 	ret
 ENDPROC(_key_expansion_192a)
 
@@ -1762,6 +1767,7 @@ _key_expansion_192b:
 
 	movaps %xmm0, (TKEYP)
 	add $0x10, TKEYP
+	pax_force_retaddr_bts
 	ret
 ENDPROC(_key_expansion_192b)
 
@@ -1775,6 +1781,7 @@ _key_expansion_256b:
 	pxor %xmm1, %xmm2
 	movaps %xmm2, (TKEYP)
 	add $0x10, TKEYP
+	pax_force_retaddr_bts
 	ret
 ENDPROC(_key_expansion_256b)
 
@@ -1888,6 +1895,7 @@ ENTRY(aesni_set_key)
 #ifndef __x86_64__
 	popl KEYP
 #endif
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(aesni_set_key)
 
@@ -1910,6 +1918,7 @@ ENTRY(aesni_enc)
 	popl KLEN
 	popl KEYP
 #endif
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(aesni_enc)
 
@@ -1968,6 +1977,7 @@ _aesni_enc1:
 	AESENC KEY STATE
 	movaps 0x70(TKEYP), KEY
 	AESENCLAST KEY STATE
+	pax_force_retaddr_bts
 	ret
 ENDPROC(_aesni_enc1)
 
@@ -2077,6 +2087,7 @@ _aesni_enc4:
 	AESENCLAST KEY STATE2
 	AESENCLAST KEY STATE3
 	AESENCLAST KEY STATE4
+	pax_force_retaddr_bts
 	ret
 ENDPROC(_aesni_enc4)
 
@@ -2100,6 +2111,7 @@ ENTRY(aesni_dec)
 	popl KLEN
 	popl KEYP
 #endif
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(aesni_dec)
 
@@ -2158,6 +2170,7 @@ _aesni_dec1:
 	AESDEC KEY STATE
 	movaps 0x70(TKEYP), KEY
 	AESDECLAST KEY STATE
+	pax_force_retaddr_bts
 	ret
 ENDPROC(_aesni_dec1)
 
@@ -2267,6 +2280,7 @@ _aesni_dec4:
 	AESDECLAST KEY STATE2
 	AESDECLAST KEY STATE3
 	AESDECLAST KEY STATE4
+	pax_force_retaddr_bts
 	ret
 ENDPROC(_aesni_dec4)
 
@@ -2325,6 +2339,7 @@ ENTRY(aesni_ecb_enc)
 	popl KEYP
 	popl LEN
 #endif
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(aesni_ecb_enc)
 
@@ -2384,6 +2399,7 @@ ENTRY(aesni_ecb_dec)
 	popl KEYP
 	popl LEN
 #endif
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(aesni_ecb_dec)
 
@@ -2426,6 +2442,7 @@ ENTRY(aesni_cbc_enc)
 	popl LEN
 	popl IVP
 #endif
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(aesni_cbc_enc)
 
@@ -2517,6 +2534,7 @@ ENTRY(aesni_cbc_dec)
 	popl LEN
 	popl IVP
 #endif
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(aesni_cbc_dec)
 
@@ -2544,6 +2562,7 @@ _aesni_inc_init:
 	mov $1, TCTR_LOW
 	MOVQ_R64_XMM TCTR_LOW INC
 	MOVQ_R64_XMM CTR TCTR_LOW
+	pax_force_retaddr_bts
 	ret
 ENDPROC(_aesni_inc_init)
 
@@ -2573,6 +2592,7 @@ _aesni_inc:
 .Linc_low:
 	movaps CTR, IV
 	PSHUFB_XMM BSWAP_MASK IV
+	pax_force_retaddr_bts
 	ret
 ENDPROC(_aesni_inc)
 
@@ -2634,6 +2654,7 @@ ENTRY(aesni_ctr_enc)
 .Lctr_enc_ret:
 	movups IV, (IVP)
 .Lctr_enc_just_ret:
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(aesni_ctr_enc)
 #endif
diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
index 246c670..4d1ed00 100644
--- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
+++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
@@ -21,6 +21,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .file "blowfish-x86_64-asm.S"
 .text
@@ -149,9 +150,11 @@ ENTRY(__blowfish_enc_blk)
 	jnz .L__enc_xor;
 
 	write_block();
+	pax_force_retaddr 0, 1
 	ret;
 .L__enc_xor:
 	xor_block();
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(__blowfish_enc_blk)
 
@@ -183,6 +186,7 @@ ENTRY(blowfish_dec_blk)
 
 	movq %r11, %rbp;
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(blowfish_dec_blk)
 
@@ -334,6 +338,7 @@ ENTRY(__blowfish_enc_blk_4way)
 
 	popq %rbx;
 	popq %rbp;
+	pax_force_retaddr 0, 1
 	ret;
 
 .L__enc_xor4:
@@ -341,6 +346,7 @@ ENTRY(__blowfish_enc_blk_4way)
 
 	popq %rbx;
 	popq %rbp;
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(__blowfish_enc_blk_4way)
 
@@ -375,5 +381,6 @@ ENTRY(blowfish_dec_blk_4way)
 	popq %rbx;
 	popq %rbp;
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(blowfish_dec_blk_4way)
diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
index 310319c..ce174a4 100644
--- a/arch/x86/crypto/camellia-x86_64-asm_64.S
+++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
@@ -21,6 +21,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .file "camellia-x86_64-asm_64.S"
 .text
@@ -228,12 +229,14 @@ ENTRY(__camellia_enc_blk)
 	enc_outunpack(mov, RT1);
 
 	movq RRBP, %rbp;
+	pax_force_retaddr 0, 1
 	ret;
 
 .L__enc_xor:
 	enc_outunpack(xor, RT1);
 
 	movq RRBP, %rbp;
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(__camellia_enc_blk)
 
@@ -272,6 +275,7 @@ ENTRY(camellia_dec_blk)
 	dec_outunpack();
 
 	movq RRBP, %rbp;
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(camellia_dec_blk)
 
@@ -463,6 +467,7 @@ ENTRY(__camellia_enc_blk_2way)
 
 	movq RRBP, %rbp;
 	popq %rbx;
+	pax_force_retaddr 0, 1
 	ret;
 
 .L__enc2_xor:
@@ -470,6 +475,7 @@ ENTRY(__camellia_enc_blk_2way)
 
 	movq RRBP, %rbp;
 	popq %rbx;
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(__camellia_enc_blk_2way)
 
@@ -510,5 +516,6 @@ ENTRY(camellia_dec_blk_2way)
 
 	movq RRBP, %rbp;
 	movq RXOR, %rbx;
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(camellia_dec_blk_2way)
diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
index c35fd5d..c1ee236 100644
--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
@@ -24,6 +24,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .file "cast5-avx-x86_64-asm_64.S"
 
@@ -281,6 +282,7 @@ __cast5_enc_blk16:
 	outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
 	outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(__cast5_enc_blk16)
 
@@ -352,6 +354,7 @@ __cast5_dec_blk16:
 	outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
 	outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
 
+	pax_force_retaddr 0, 1
 	ret;
 
 .L__skip_dec:
@@ -388,6 +391,7 @@ ENTRY(cast5_ecb_enc_16way)
 	vmovdqu RR4, (6*4*4)(%r11);
 	vmovdqu RL4, (7*4*4)(%r11);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(cast5_ecb_enc_16way)
 
@@ -420,6 +424,7 @@ ENTRY(cast5_ecb_dec_16way)
 	vmovdqu RR4, (6*4*4)(%r11);
 	vmovdqu RL4, (7*4*4)(%r11);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(cast5_ecb_dec_16way)
 
@@ -469,6 +474,7 @@ ENTRY(cast5_cbc_dec_16way)
 
 	popq %r12;
 
+	pax_force_retaddr
 	ret;
 ENDPROC(cast5_cbc_dec_16way)
 
@@ -542,5 +548,6 @@ ENTRY(cast5_ctr_16way)
 
 	popq %r12;
 
+	pax_force_retaddr
 	ret;
 ENDPROC(cast5_ctr_16way)
diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
index f93b610..c09bf40 100644
--- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
@@ -24,6 +24,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 #include "glue_helper-asm-avx.S"
 
 .file "cast6-avx-x86_64-asm_64.S"
@@ -293,6 +294,7 @@ __cast6_enc_blk8:
 	outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
 	outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(__cast6_enc_blk8)
 
@@ -338,6 +340,7 @@ __cast6_dec_blk8:
 	outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
 	outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(__cast6_dec_blk8)
 
@@ -356,6 +359,7 @@ ENTRY(cast6_ecb_enc_8way)
 
 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(cast6_ecb_enc_8way)
 
@@ -374,6 +378,7 @@ ENTRY(cast6_ecb_dec_8way)
 
 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(cast6_ecb_dec_8way)
 
@@ -397,6 +402,7 @@ ENTRY(cast6_cbc_dec_8way)
 
 	popq %r12;
 
+	pax_force_retaddr
 	ret;
 ENDPROC(cast6_cbc_dec_8way)
 
@@ -422,5 +428,6 @@ ENTRY(cast6_ctr_8way)
 
 	popq %r12;
 
+	pax_force_retaddr
 	ret;
 ENDPROC(cast6_ctr_8way)
diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S
index 9279e0b..9270820 100644
--- a/arch/x86/crypto/salsa20-x86_64-asm_64.S
+++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S
@@ -1,4 +1,5 @@
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 # enter salsa20_encrypt_bytes
 ENTRY(salsa20_encrypt_bytes)
@@ -789,6 +790,7 @@ ENTRY(salsa20_encrypt_bytes)
 	add	%r11,%rsp
 	mov	%rdi,%rax
 	mov	%rsi,%rdx
+	pax_force_retaddr 0, 1
 	ret
 #   bytesatleast65:
 ._bytesatleast65:
@@ -889,6 +891,7 @@ ENTRY(salsa20_keysetup)
 	add	%r11,%rsp
 	mov	%rdi,%rax
 	mov	%rsi,%rdx
+	pax_force_retaddr
 	ret
 ENDPROC(salsa20_keysetup)
 
@@ -914,5 +917,6 @@ ENTRY(salsa20_ivsetup)
 	add	%r11,%rsp
 	mov	%rdi,%rax
 	mov	%rsi,%rdx
+	pax_force_retaddr
 	ret
 ENDPROC(salsa20_ivsetup)
diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
index 43c9386..a0e2d60 100644
--- a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
@@ -25,6 +25,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 #include "glue_helper-asm-avx.S"
 
 .file "serpent-avx-x86_64-asm_64.S"
@@ -617,6 +618,7 @@ __serpent_enc_blk8_avx:
 	write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
 	write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__serpent_enc_blk8_avx)
 
@@ -671,6 +673,7 @@ __serpent_dec_blk8_avx:
 	write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
 	write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__serpent_dec_blk8_avx)
 
@@ -687,6 +690,7 @@ ENTRY(serpent_ecb_enc_8way_avx)
 
 	store_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_ecb_enc_8way_avx)
 
@@ -703,6 +707,7 @@ ENTRY(serpent_ecb_dec_8way_avx)
 
 	store_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_ecb_dec_8way_avx)
 
@@ -719,6 +724,7 @@ ENTRY(serpent_cbc_dec_8way_avx)
 
 	store_cbc_8way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_cbc_dec_8way_avx)
 
@@ -737,5 +743,6 @@ ENTRY(serpent_ctr_8way_avx)
 
 	store_ctr_8way(%rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_ctr_8way_avx)
diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
index acc066c..1559cc4 100644
--- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
+++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
@@ -25,6 +25,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .file "serpent-sse2-x86_64-asm_64.S"
 .text
@@ -690,12 +691,14 @@ ENTRY(__serpent_enc_blk_8way)
 	write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
 	write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 
 .L__enc_xor8:
 	xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
 	xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__serpent_enc_blk_8way)
 
@@ -750,5 +753,6 @@ ENTRY(serpent_dec_blk_8way)
 	write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2);
 	write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_dec_blk_8way)
diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
index a410950..3356d42 100644
--- a/arch/x86/crypto/sha1_ssse3_asm.S
+++ b/arch/x86/crypto/sha1_ssse3_asm.S
@@ -29,6 +29,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 #define CTX	%rdi	// arg1
 #define BUF	%rsi	// arg2
@@ -104,6 +105,7 @@
 	pop	%r12
 	pop	%rbp
 	pop	%rbx
+	pax_force_retaddr 0, 1
 	ret
 
 	ENDPROC(\name)
diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
index 8d3e113..898b161 100644
--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
@@ -24,6 +24,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 #include "glue_helper-asm-avx.S"
 
 .file "twofish-avx-x86_64-asm_64.S"
@@ -282,6 +283,7 @@ __twofish_enc_blk8:
 	outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
 	outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(__twofish_enc_blk8)
 
@@ -322,6 +324,7 @@ __twofish_dec_blk8:
 	outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
 	outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(__twofish_dec_blk8)
 
@@ -340,6 +343,7 @@ ENTRY(twofish_ecb_enc_8way)
 
 	store_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(twofish_ecb_enc_8way)
 
@@ -358,6 +362,7 @@ ENTRY(twofish_ecb_dec_8way)
 
 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(twofish_ecb_dec_8way)
 
@@ -381,6 +386,7 @@ ENTRY(twofish_cbc_dec_8way)
 
 	popq %r12;
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(twofish_cbc_dec_8way)
 
@@ -406,5 +412,6 @@ ENTRY(twofish_ctr_8way)
 
 	popq %r12;
 
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(twofish_ctr_8way)
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
index 1c3b7ce..b365c5e 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
@@ -21,6 +21,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .file "twofish-x86_64-asm-3way.S"
 .text
@@ -258,6 +259,7 @@ ENTRY(__twofish_enc_blk_3way)
 	popq %r13;
 	popq %r14;
 	popq %r15;
+	pax_force_retaddr 0, 1
 	ret;
 
 .L__enc_xor3:
@@ -269,6 +271,7 @@ ENTRY(__twofish_enc_blk_3way)
 	popq %r13;
 	popq %r14;
 	popq %r15;
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(__twofish_enc_blk_3way)
 
@@ -308,5 +311,6 @@ ENTRY(twofish_dec_blk_3way)
 	popq %r13;
 	popq %r14;
 	popq %r15;
+	pax_force_retaddr 0, 1
 	ret;
 ENDPROC(twofish_dec_blk_3way)
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
index a039d21..29e7615 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
@@ -22,6 +22,7 @@
 
 #include <linux/linkage.h>
 #include <asm/asm-offsets.h>
+#include <asm/alternative-asm.h>
 
 #define a_offset	0
 #define b_offset	4
@@ -265,6 +266,7 @@ ENTRY(twofish_enc_blk)
 
 	popq	R1
 	movq	$1,%rax
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(twofish_enc_blk)
 
@@ -317,5 +319,6 @@ ENTRY(twofish_dec_blk)
 
 	popq	R1
 	movq	$1,%rax
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(twofish_dec_blk)
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 03abf9b..a42ba29 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -159,6 +159,8 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
 	unsigned long dump_start, dump_size;
 	struct user32 dump;
 
+	memset(&dump, 0, sizeof(dump));
+
 	fs = get_fs();
 	set_fs(KERNEL_DS);
 	has_dumped = 1;
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index cf1a471..3bc4cf8 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -340,7 +340,7 @@ static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
 	sp -= frame_size;
 	/* Align the stack pointer according to the i386 ABI,
 	 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
-	sp = ((sp + 4) & -16ul) - 4;
+	sp = ((sp - 12) & -16ul) - 4;
 	return (void __user *) sp;
 }
 
@@ -398,7 +398,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
 		 * These are actually not used anymore, but left because some
 		 * gdb versions depend on them as a marker.
 		 */
-		put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
+		put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
 	} put_user_catch(err);
 
 	if (err)
@@ -440,7 +440,7 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
 		0xb8,
 		__NR_ia32_rt_sigreturn,
 		0x80cd,
-		0,
+		0
 	};
 
 	frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate);
@@ -463,16 +463,18 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
 
 		if (ksig->ka.sa.sa_flags & SA_RESTORER)
 			restorer = ksig->ka.sa.sa_restorer;
+		else if (current->mm->context.vdso)
+			/* Return stub is in 32bit vsyscall page */
+			restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
 		else
-			restorer = VDSO32_SYMBOL(current->mm->context.vdso,
-						 rt_sigreturn);
+			restorer = &frame->retcode;
 		put_user_ex(ptr_to_compat(restorer), &frame->pretcode);
 
 		/*
 		 * Not actually used anymore, but left because some gdb
 		 * versions need it.
 		 */
-		put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
+		put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
 	} put_user_catch(err);
 
 	err |= copy_siginfo_to_user32(&frame->info, &ksig->info);
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 474dc1b..be7bff5 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -15,8 +15,10 @@
 #include <asm/irqflags.h>
 #include <asm/asm.h>
 #include <asm/smap.h>
+#include <asm/pgtable.h>
 #include <linux/linkage.h>
 #include <linux/err.h>
+#include <asm/alternative-asm.h>
 
 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this.  */
 #include <linux/elf-em.h>
@@ -96,6 +98,32 @@ ENTRY(native_irq_enable_sysexit)
 ENDPROC(native_irq_enable_sysexit)
 #endif
 
+	.macro pax_enter_kernel_user
+	pax_set_fptr_mask
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	call pax_enter_kernel_user
+#endif
+	.endm
+
+	.macro pax_exit_kernel_user
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	call pax_exit_kernel_user
+#endif
+#ifdef CONFIG_PAX_RANDKSTACK
+	pushq %rax
+	pushq %r11
+	call pax_randomize_kstack
+	popq %r11
+	popq %rax
+#endif
+	.endm
+
+.macro pax_erase_kstack
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+	call pax_erase_kstack
+#endif
+.endm
+
 /*
  * 32bit SYSENTER instruction entry.
  *
@@ -122,12 +150,6 @@ ENTRY(ia32_sysenter_target)
 	CFI_REGISTER	rsp,rbp
 	SWAPGS_UNSAFE_STACK
 	movq	PER_CPU_VAR(kernel_stack), %rsp
-	addq	$(KERNEL_STACK_OFFSET),%rsp
-	/*
-	 * No need to follow this irqs on/off section: the syscall
-	 * disabled irqs, here we enable it straight after entry:
-	 */
-	ENABLE_INTERRUPTS(CLBR_NONE)
  	movl	%ebp,%ebp		/* zero extension */
 	pushq_cfi $__USER32_DS
 	/*CFI_REL_OFFSET ss,0*/
@@ -135,24 +157,44 @@ ENTRY(ia32_sysenter_target)
 	CFI_REL_OFFSET rsp,0
 	pushfq_cfi
 	/*CFI_REL_OFFSET rflags,0*/
-	movl	TI_sysenter_return+THREAD_INFO(%rsp,3*8-KERNEL_STACK_OFFSET),%r10d
-	CFI_REGISTER rip,r10
+	orl	$X86_EFLAGS_IF,(%rsp)
+	GET_THREAD_INFO(%r11)
+	movl	TI_sysenter_return(%r11), %r11d
+	CFI_REGISTER rip,r11
 	pushq_cfi $__USER32_CS
 	/*CFI_REL_OFFSET cs,0*/
 	movl	%eax, %eax
-	pushq_cfi %r10
+	pushq_cfi %r11
 	CFI_REL_OFFSET rip,0
 	pushq_cfi %rax
 	cld
 	SAVE_ARGS 0,1,0
+	pax_enter_kernel_user
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
+	/*
+	 * No need to follow this irqs on/off section: the syscall
+	 * disabled irqs, here we enable it straight after entry:
+	 */
+	ENABLE_INTERRUPTS(CLBR_NONE)
  	/* no need to do an access_ok check here because rbp has been
  	   32bit zero extended */ 
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	mov pax_user_shadow_base,%r11
+	add %r11,%rbp
+#endif
+
 	ASM_STAC
 1:	movl	(%rbp),%ebp
 	_ASM_EXTABLE(1b,ia32_badarg)
 	ASM_CLAC
-	orl     $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
-	testl   $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	GET_THREAD_INFO(%r11)
+	orl    $TS_COMPAT,TI_status(%r11)
+	testl  $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
 	CFI_REMEMBER_STATE
 	jnz  sysenter_tracesys
 	cmpq	$(IA32_NR_syscalls-1),%rax
@@ -162,12 +204,15 @@ sysenter_do_call:
 sysenter_dispatch:
 	call	*ia32_sys_call_table(,%rax,8)
 	movq	%rax,RAX-ARGOFFSET(%rsp)
+	GET_THREAD_INFO(%r11)
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
-	testl	$_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl	$_TIF_ALLWORK_MASK,TI_flags(%r11)
 	jnz	sysexit_audit
 sysexit_from_sys_call:
-	andl    $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	pax_exit_kernel_user
+	pax_erase_kstack
+	andl    $~TS_COMPAT,TI_status(%r11)
 	/* clear IF, that popfq doesn't enable interrupts early */
 	andl  $~0x200,EFLAGS-R11(%rsp) 
 	movl	RIP-R11(%rsp),%edx		/* User %eip */
@@ -193,6 +238,9 @@ sysexit_from_sys_call:
 	movl %eax,%esi			/* 2nd arg: syscall number */
 	movl $AUDIT_ARCH_I386,%edi	/* 1st arg: audit arch */
 	call __audit_syscall_entry
+
+	pax_erase_kstack
+
 	movl RAX-ARGOFFSET(%rsp),%eax	/* reload syscall number */
 	cmpq $(IA32_NR_syscalls-1),%rax
 	ja ia32_badsys
@@ -204,7 +252,7 @@ sysexit_from_sys_call:
 	.endm
 
 	.macro auditsys_exit exit
-	testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
 	jnz ia32_ret_from_sys_call
 	TRACE_IRQS_ON
 	ENABLE_INTERRUPTS(CLBR_NONE)
@@ -215,11 +263,12 @@ sysexit_from_sys_call:
 1:	setbe %al		/* 1 if error, 0 if not */
 	movzbl %al,%edi		/* zero-extend that into %edi */
 	call __audit_syscall_exit
+	GET_THREAD_INFO(%r11)
 	movq RAX-ARGOFFSET(%rsp),%rax	/* reload syscall return value */
 	movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
-	testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl %edi,TI_flags(%r11)
 	jz \exit
 	CLEAR_RREGS -ARGOFFSET
 	jmp int_with_check
@@ -237,7 +286,7 @@ sysexit_audit:
 
 sysenter_tracesys:
 #ifdef CONFIG_AUDITSYSCALL
-	testl	$(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl	$(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
 	jz	sysenter_auditsys
 #endif
 	SAVE_REST
@@ -249,6 +298,9 @@ sysenter_tracesys:
 	RESTORE_REST
 	cmpq	$(IA32_NR_syscalls-1),%rax
 	ja	int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */
+
+	pax_erase_kstack
+
 	jmp	sysenter_do_call
 	CFI_ENDPROC
 ENDPROC(ia32_sysenter_target)
@@ -276,19 +328,25 @@ ENDPROC(ia32_sysenter_target)
 ENTRY(ia32_cstar_target)
 	CFI_STARTPROC32	simple
 	CFI_SIGNAL_FRAME
-	CFI_DEF_CFA	rsp,KERNEL_STACK_OFFSET
+	CFI_DEF_CFA	rsp,0
 	CFI_REGISTER	rip,rcx
 	/*CFI_REGISTER	rflags,r11*/
 	SWAPGS_UNSAFE_STACK
 	movl	%esp,%r8d
 	CFI_REGISTER	rsp,r8
 	movq	PER_CPU_VAR(kernel_stack),%rsp
+	SAVE_ARGS 8*6,0,0
+	pax_enter_kernel_user
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
 	/*
 	 * No need to follow this irqs on/off section: the syscall
 	 * disabled irqs and here we enable it straight after entry:
 	 */
 	ENABLE_INTERRUPTS(CLBR_NONE)
-	SAVE_ARGS 8,0,0
 	movl 	%eax,%eax	/* zero extension */
 	movq	%rax,ORIG_RAX-ARGOFFSET(%rsp)
 	movq	%rcx,RIP-ARGOFFSET(%rsp)
@@ -304,12 +362,19 @@ ENTRY(ia32_cstar_target)
 	/* no need to do an access_ok check here because r8 has been
 	   32bit zero extended */ 
 	/* hardware stack frame is complete now */	
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	mov pax_user_shadow_base,%r11
+	add %r11,%r8
+#endif
+
 	ASM_STAC
 1:	movl	(%r8),%r9d
 	_ASM_EXTABLE(1b,ia32_badarg)
 	ASM_CLAC
-	orl     $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
-	testl   $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	GET_THREAD_INFO(%r11)
+	orl   $TS_COMPAT,TI_status(%r11)
+	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
 	CFI_REMEMBER_STATE
 	jnz   cstar_tracesys
 	cmpq $IA32_NR_syscalls-1,%rax
@@ -319,12 +384,15 @@ cstar_do_call:
 cstar_dispatch:
 	call *ia32_sys_call_table(,%rax,8)
 	movq %rax,RAX-ARGOFFSET(%rsp)
+	GET_THREAD_INFO(%r11)
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
-	testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl $_TIF_ALLWORK_MASK,TI_flags(%r11)
 	jnz sysretl_audit
 sysretl_from_sys_call:
-	andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	pax_exit_kernel_user
+	pax_erase_kstack
+	andl $~TS_COMPAT,TI_status(%r11)
 	RESTORE_ARGS 0,-ARG_SKIP,0,0,0
 	movl RIP-ARGOFFSET(%rsp),%ecx
 	CFI_REGISTER rip,rcx
@@ -352,7 +420,7 @@ sysretl_audit:
 
 cstar_tracesys:
 #ifdef CONFIG_AUDITSYSCALL
-	testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
 	jz cstar_auditsys
 #endif
 	xchgl %r9d,%ebp
@@ -366,6 +434,9 @@ cstar_tracesys:
 	xchgl %ebp,%r9d
 	cmpq $(IA32_NR_syscalls-1),%rax
 	ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */
+
+	pax_erase_kstack
+
 	jmp cstar_do_call
 END(ia32_cstar_target)
 				
@@ -407,19 +478,26 @@ ENTRY(ia32_syscall)
 	CFI_REL_OFFSET	rip,RIP-RIP
 	PARAVIRT_ADJUST_EXCEPTION_FRAME
 	SWAPGS
-	/*
-	 * No need to follow this irqs on/off section: the syscall
-	 * disabled irqs and here we enable it straight after entry:
-	 */
-	ENABLE_INTERRUPTS(CLBR_NONE)
 	movl %eax,%eax
 	pushq_cfi %rax
 	cld
 	/* note the registers are not zero extended to the sf.
 	   this could be a problem. */
 	SAVE_ARGS 0,1,0
-	orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
-	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	pax_enter_kernel_user
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
+	/*
+	 * No need to follow this irqs on/off section: the syscall
+	 * disabled irqs and here we enable it straight after entry:
+	 */
+	ENABLE_INTERRUPTS(CLBR_NONE)
+	GET_THREAD_INFO(%r11)
+	orl   $TS_COMPAT,TI_status(%r11)
+	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
 	jnz ia32_tracesys
 	cmpq $(IA32_NR_syscalls-1),%rax
 	ja ia32_badsys
@@ -442,6 +520,9 @@ ia32_tracesys:
 	RESTORE_REST
 	cmpq $(IA32_NR_syscalls-1),%rax
 	ja  int_ret_from_sys_call	/* ia32_tracesys has set RAX(%rsp) */
+
+	pax_erase_kstack
+
 	jmp ia32_do_call
 END(ia32_syscall)
 
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index ad7a20c..1ffa3c1 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -69,8 +69,8 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
  */
 static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
 {
-	typeof(ubuf->st_uid) uid = 0;
-	typeof(ubuf->st_gid) gid = 0;
+	typeof(((struct stat64 *)0)->st_uid) uid = 0;
+	typeof(((struct stat64 *)0)->st_gid) gid = 0;
 	SET_UID(uid, from_kuid_munged(current_user_ns(), stat->uid));
 	SET_GID(gid, from_kgid_munged(current_user_ns(), stat->gid));
 	if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
@@ -205,7 +205,7 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd,
 		return -EFAULT;
 
 	set_fs(KERNEL_DS);
-	ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL,
+	ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __force_user *)&of : NULL,
 			   count);
 	set_fs(old_fs);
 
diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
index 372231c..a5aa1a1 100644
--- a/arch/x86/include/asm/alternative-asm.h
+++ b/arch/x86/include/asm/alternative-asm.h
@@ -18,6 +18,45 @@
 	.endm
 #endif
 
+#ifdef KERNEXEC_PLUGIN
+	.macro pax_force_retaddr_bts rip=0
+	btsq $63,\rip(%rsp)
+	.endm
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
+	.macro pax_force_retaddr rip=0, reload=0
+	btsq $63,\rip(%rsp)
+	.endm
+	.macro pax_force_fptr ptr
+	btsq $63,\ptr
+	.endm
+	.macro pax_set_fptr_mask
+	.endm
+#endif
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	.macro pax_force_retaddr rip=0, reload=0
+	.if \reload
+	pax_set_fptr_mask
+	.endif
+	orq %r10,\rip(%rsp)
+	.endm
+	.macro pax_force_fptr ptr
+	orq %r10,\ptr
+	.endm
+	.macro pax_set_fptr_mask
+	movabs $0x8000000000000000,%r10
+	.endm
+#endif
+#else
+	.macro pax_force_retaddr rip=0, reload=0
+	.endm
+	.macro pax_force_fptr ptr
+	.endm
+	.macro pax_force_retaddr_bts rip=0
+	.endm
+	.macro pax_set_fptr_mask
+	.endm
+#endif
+
 .macro altinstruction_entry orig alt feature orig_len alt_len
 	.long \orig - .
 	.long \alt - .
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 58ed6d9..f1cbe58 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -105,7 +105,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
 	".pushsection .discard,\"aw\",@progbits\n"			\
 	DISCARD_ENTRY(1)						\
 	".popsection\n"							\
-	".pushsection .altinstr_replacement, \"ax\"\n"			\
+	".pushsection .altinstr_replacement, \"a\"\n"			\
 	ALTINSTR_REPLACEMENT(newinstr, feature, 1)			\
 	".popsection"
 
@@ -119,7 +119,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
 	DISCARD_ENTRY(1)						\
 	DISCARD_ENTRY(2)						\
 	".popsection\n"							\
-	".pushsection .altinstr_replacement, \"ax\"\n"			\
+	".pushsection .altinstr_replacement, \"a\"\n"			\
 	ALTINSTR_REPLACEMENT(newinstr1, feature1, 1)			\
 	ALTINSTR_REPLACEMENT(newinstr2, feature2, 2)			\
 	".popsection"
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 3388034..050f0b9 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -44,7 +44,7 @@ static inline void generic_apic_probe(void)
 
 #ifdef CONFIG_X86_LOCAL_APIC
 
-extern unsigned int apic_verbosity;
+extern int apic_verbosity;
 extern int local_apic_timer_c2_ok;
 
 extern int disable_apic;
diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
index 20370c6..a2eb9b0 100644
--- a/arch/x86/include/asm/apm.h
+++ b/arch/x86/include/asm/apm.h
@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
 	__asm__ __volatile__(APM_DO_ZERO_SEGS
 		"pushl %%edi\n\t"
 		"pushl %%ebp\n\t"
-		"lcall *%%cs:apm_bios_entry\n\t"
+		"lcall *%%ss:apm_bios_entry\n\t"
 		"setc %%al\n\t"
 		"popl %%ebp\n\t"
 		"popl %%edi\n\t"
@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in,
 	__asm__ __volatile__(APM_DO_ZERO_SEGS
 		"pushl %%edi\n\t"
 		"pushl %%ebp\n\t"
-		"lcall *%%cs:apm_bios_entry\n\t"
+		"lcall *%%ss:apm_bios_entry\n\t"
 		"setc %%bl\n\t"
 		"popl %%ebp\n\t"
 		"popl %%edi\n\t"
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index 722aa3b..3a0bb27 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -22,7 +22,18 @@
  */
 static inline int atomic_read(const atomic_t *v)
 {
-	return (*(volatile int *)&(v)->counter);
+	return (*(volatile const int *)&(v)->counter);
+}
+
+/**
+ * atomic_read_unchecked - read atomic variable
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically reads the value of @v.
+ */
+static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
+{
+	return (*(volatile const int *)&(v)->counter);
 }
 
 /**
@@ -38,6 +49,18 @@ static inline void atomic_set(atomic_t *v, int i)
 }
 
 /**
+ * atomic_set_unchecked - set atomic variable
+ * @v: pointer of type atomic_unchecked_t
+ * @i: required value
+ *
+ * Atomically sets the value of @v to @i.
+ */
+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
+{
+	v->counter = i;
+}
+
+/**
  * atomic_add - add integer to atomic variable
  * @i: integer value to add
  * @v: pointer of type atomic_t
@@ -46,7 +69,29 @@ static inline void atomic_set(atomic_t *v, int i)
  */
 static inline void atomic_add(int i, atomic_t *v)
 {
-	asm volatile(LOCK_PREFIX "addl %1,%0"
+	asm volatile(LOCK_PREFIX "addl %1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "subl %1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (v->counter)
+		     : "ir" (i));
+}
+
+/**
+ * atomic_add_unchecked - add integer to atomic variable
+ * @i: integer value to add
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically adds @i to @v.
+ */
+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "addl %1,%0\n"
 		     : "+m" (v->counter)
 		     : "ir" (i));
 }
@@ -60,7 +105,29 @@ static inline void atomic_add(int i, atomic_t *v)
  */
 static inline void atomic_sub(int i, atomic_t *v)
 {
-	asm volatile(LOCK_PREFIX "subl %1,%0"
+	asm volatile(LOCK_PREFIX "subl %1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "addl %1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (v->counter)
+		     : "ir" (i));
+}
+
+/**
+ * atomic_sub_unchecked - subtract integer from atomic variable
+ * @i: integer value to subtract
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically subtracts @i from @v.
+ */
+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "subl %1,%0\n"
 		     : "+m" (v->counter)
 		     : "ir" (i));
 }
@@ -78,7 +145,16 @@ static inline int atomic_sub_and_test(int i, atomic_t *v)
 {
 	unsigned char c;
 
-	asm volatile(LOCK_PREFIX "subl %2,%0; sete %1"
+	asm volatile(LOCK_PREFIX "subl %2,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "addl %2,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sete %1\n"
 		     : "+m" (v->counter), "=qm" (c)
 		     : "ir" (i) : "memory");
 	return c;
@@ -92,7 +168,27 @@ static inline int atomic_sub_and_test(int i, atomic_t *v)
  */
 static inline void atomic_inc(atomic_t *v)
 {
-	asm volatile(LOCK_PREFIX "incl %0"
+	asm volatile(LOCK_PREFIX "incl %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "decl %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (v->counter));
+}
+
+/**
+ * atomic_inc_unchecked - increment atomic variable
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically increments @v by 1.
+ */
+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "incl %0\n"
 		     : "+m" (v->counter));
 }
 
@@ -104,7 +200,27 @@ static inline void atomic_inc(atomic_t *v)
  */
 static inline void atomic_dec(atomic_t *v)
 {
-	asm volatile(LOCK_PREFIX "decl %0"
+	asm volatile(LOCK_PREFIX "decl %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "incl %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (v->counter));
+}
+
+/**
+ * atomic_dec_unchecked - decrement atomic variable
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically decrements @v by 1.
+ */
+static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "decl %0\n"
 		     : "+m" (v->counter));
 }
 
@@ -120,7 +236,16 @@ static inline int atomic_dec_and_test(atomic_t *v)
 {
 	unsigned char c;
 
-	asm volatile(LOCK_PREFIX "decl %0; sete %1"
+	asm volatile(LOCK_PREFIX "decl %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "incl %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sete %1\n"
 		     : "+m" (v->counter), "=qm" (c)
 		     : : "memory");
 	return c != 0;
@@ -138,7 +263,35 @@ static inline int atomic_inc_and_test(atomic_t *v)
 {
 	unsigned char c;
 
-	asm volatile(LOCK_PREFIX "incl %0; sete %1"
+	asm volatile(LOCK_PREFIX "incl %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "decl %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sete %1\n"
+		     : "+m" (v->counter), "=qm" (c)
+		     : : "memory");
+	return c != 0;
+}
+
+/**
+ * atomic_inc_and_test_unchecked - increment and test
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically increments @v by 1
+ * and returns true if the result is zero, or false for all
+ * other cases.
+ */
+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
+{
+	unsigned char c;
+
+	asm volatile(LOCK_PREFIX "incl %0\n"
+		     "sete %1\n"
 		     : "+m" (v->counter), "=qm" (c)
 		     : : "memory");
 	return c != 0;
@@ -157,7 +310,16 @@ static inline int atomic_add_negative(int i, atomic_t *v)
 {
 	unsigned char c;
 
-	asm volatile(LOCK_PREFIX "addl %2,%0; sets %1"
+	asm volatile(LOCK_PREFIX "addl %2,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "subl %2,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sets %1\n"
 		     : "+m" (v->counter), "=qm" (c)
 		     : "ir" (i) : "memory");
 	return c;
@@ -172,6 +334,18 @@ static inline int atomic_add_negative(int i, atomic_t *v)
  */
 static inline int atomic_add_return(int i, atomic_t *v)
 {
+	return i + xadd_check_overflow(&v->counter, i);
+}
+
+/**
+ * atomic_add_return_unchecked - add integer and return
+ * @i: integer value to add
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically adds @i to @v and returns @i + @v
+ */
+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
+{
 	return i + xadd(&v->counter, i);
 }
 
@@ -188,6 +362,10 @@ static inline int atomic_sub_return(int i, atomic_t *v)
 }
 
 #define atomic_inc_return(v)  (atomic_add_return(1, v))
+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_add_return_unchecked(1, v);
+}
 #define atomic_dec_return(v)  (atomic_sub_return(1, v))
 
 static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
@@ -195,11 +373,21 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 	return cmpxchg(&v->counter, old, new);
 }
 
+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
+{
+	return cmpxchg(&v->counter, old, new);
+}
+
 static inline int atomic_xchg(atomic_t *v, int new)
 {
 	return xchg(&v->counter, new);
 }
 
+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
+{
+	return xchg(&v->counter, new);
+}
+
 /**
  * __atomic_add_unless - add unless the number is already a given value
  * @v: pointer of type atomic_t
@@ -211,12 +399,25 @@ static inline int atomic_xchg(atomic_t *v, int new)
  */
 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 {
-	int c, old;
+	int c, old, new;
 	c = atomic_read(v);
 	for (;;) {
-		if (unlikely(c == (u)))
+		if (unlikely(c == u))
 			break;
-		old = atomic_cmpxchg((v), c, c + (a));
+
+		asm volatile("addl %2,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+			     "jno 0f\n"
+			     "subl %2,%0\n"
+			     "int $4\n0:\n"
+			     _ASM_EXTABLE(0b, 0b)
+#endif
+
+			     : "=r" (new)
+			     : "0" (c), "ir" (a));
+
+		old = atomic_cmpxchg(v, c, new);
 		if (likely(old == c))
 			break;
 		c = old;
@@ -225,6 +426,49 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 /**
+ * atomic_inc_not_zero_hint - increment if not null
+ * @v: pointer of type atomic_t
+ * @hint: probable value of the atomic before the increment
+ *
+ * This version of atomic_inc_not_zero() gives a hint of probable
+ * value of the atomic. This helps processor to not read the memory
+ * before doing the atomic read/modify/write cycle, lowering
+ * number of bus transactions on some arches.
+ *
+ * Returns: 0 if increment was not done, 1 otherwise.
+ */
+#define atomic_inc_not_zero_hint atomic_inc_not_zero_hint
+static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint)
+{
+	int val, c = hint, new;
+
+	/* sanity test, should be removed by compiler if hint is a constant */
+	if (!hint)
+		return __atomic_add_unless(v, 1, 0);
+
+	do {
+		asm volatile("incl %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+			     "jno 0f\n"
+			     "decl %0\n"
+			     "int $4\n0:\n"
+			     _ASM_EXTABLE(0b, 0b)
+#endif
+
+			     : "=r" (new)
+			     : "0" (c));
+
+		val = atomic_cmpxchg(v, c, new);
+		if (val == c)
+			return 1;
+		c = val;
+	} while (c);
+
+	return 0;
+}
+
+/**
  * atomic_inc_short - increment of a short integer
  * @v: pointer to type int
  *
@@ -253,14 +497,37 @@ static inline void atomic_or_long(unsigned long *v1, unsigned long v2)
 #endif
 
 /* These are x86-specific, used by some header files */
-#define atomic_clear_mask(mask, addr)				\
-	asm volatile(LOCK_PREFIX "andl %0,%1"			\
-		     : : "r" (~(mask)), "m" (*(addr)) : "memory")
+static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
+{
+	asm volatile(LOCK_PREFIX "andl %1,%0"
+		     : "+m" (v->counter)
+		     : "r" (~(mask))
+		     : "memory");
+}
 
-#define atomic_set_mask(mask, addr)				\
-	asm volatile(LOCK_PREFIX "orl %0,%1"			\
-		     : : "r" ((unsigned)(mask)), "m" (*(addr))	\
-		     : "memory")
+static inline void atomic_clear_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "andl %1,%0"
+		     : "+m" (v->counter)
+		     : "r" (~(mask))
+		     : "memory");
+}
+
+static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
+{
+	asm volatile(LOCK_PREFIX "orl %1,%0"
+		     : "+m" (v->counter)
+		     : "r" (mask)
+		     : "memory");
+}
+
+static inline void atomic_set_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "orl %1,%0"
+		     : "+m" (v->counter)
+		     : "r" (mask)
+		     : "memory");
+}
 
 /* Atomic operations are already serializing on x86 */
 #define smp_mb__before_atomic_dec()	barrier()
diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
index b154de7..aadebd8 100644
--- a/arch/x86/include/asm/atomic64_32.h
+++ b/arch/x86/include/asm/atomic64_32.h
@@ -12,6 +12,14 @@ typedef struct {
 	u64 __aligned(8) counter;
 } atomic64_t;
 
+#ifdef CONFIG_PAX_REFCOUNT
+typedef struct {
+	u64 __aligned(8) counter;
+} atomic64_unchecked_t;
+#else
+typedef atomic64_t atomic64_unchecked_t;
+#endif
+
 #define ATOMIC64_INIT(val)	{ (val) }
 
 #define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...)
@@ -37,21 +45,31 @@ typedef struct {
 	ATOMIC64_DECL_ONE(sym##_386)
 
 ATOMIC64_DECL_ONE(add_386);
+ATOMIC64_DECL_ONE(add_unchecked_386);
 ATOMIC64_DECL_ONE(sub_386);
+ATOMIC64_DECL_ONE(sub_unchecked_386);
 ATOMIC64_DECL_ONE(inc_386);
+ATOMIC64_DECL_ONE(inc_unchecked_386);
 ATOMIC64_DECL_ONE(dec_386);
+ATOMIC64_DECL_ONE(dec_unchecked_386);
 #endif
 
 #define alternative_atomic64(f, out, in...) \
 	__alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in)
 
 ATOMIC64_DECL(read);
+ATOMIC64_DECL(read_unchecked);
 ATOMIC64_DECL(set);
+ATOMIC64_DECL(set_unchecked);
 ATOMIC64_DECL(xchg);
 ATOMIC64_DECL(add_return);
+ATOMIC64_DECL(add_return_unchecked);
 ATOMIC64_DECL(sub_return);
+ATOMIC64_DECL(sub_return_unchecked);
 ATOMIC64_DECL(inc_return);
+ATOMIC64_DECL(inc_return_unchecked);
 ATOMIC64_DECL(dec_return);
+ATOMIC64_DECL(dec_return_unchecked);
 ATOMIC64_DECL(dec_if_positive);
 ATOMIC64_DECL(inc_not_zero);
 ATOMIC64_DECL(add_unless);
@@ -77,6 +95,21 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n
 }
 
 /**
+ * atomic64_cmpxchg_unchecked - cmpxchg atomic64 variable
+ * @p: pointer to type atomic64_unchecked_t
+ * @o: expected value
+ * @n: new value
+ *
+ * Atomically sets @v to @n if it was equal to @o and returns
+ * the old value.
+ */
+
+static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long long o, long long n)
+{
+	return cmpxchg64(&v->counter, o, n);
+}
+
+/**
  * atomic64_xchg - xchg atomic64 variable
  * @v: pointer to type atomic64_t
  * @n: value to assign
@@ -112,6 +145,22 @@ static inline void atomic64_set(atomic64_t *v, long long i)
 }
 
 /**
+ * atomic64_set_unchecked - set atomic64 variable
+ * @v: pointer to type atomic64_unchecked_t
+ * @n: value to assign
+ *
+ * Atomically sets the value of @v to @n.
+ */
+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
+{
+	unsigned high = (unsigned)(i >> 32);
+	unsigned low = (unsigned)i;
+	alternative_atomic64(set, /* no output */,
+			     "S" (v), "b" (low), "c" (high)
+			     : "eax", "edx", "memory");
+}
+
+/**
  * atomic64_read - read atomic64 variable
  * @v: pointer to type atomic64_t
  *
@@ -125,6 +174,19 @@ static inline long long atomic64_read(const atomic64_t *v)
  }
 
 /**
+ * atomic64_read_unchecked - read atomic64 variable
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically reads the value of @v and returns it.
+ */
+static inline long long atomic64_read_unchecked(atomic64_unchecked_t *v)
+{
+	long long r;
+	alternative_atomic64(read, "=&A" (r), "c" (v) : "memory");
+	return r;
+ }
+
+/**
  * atomic64_add_return - add and return
  * @i: integer value to add
  * @v: pointer to type atomic64_t
@@ -139,6 +201,21 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
 	return i;
 }
 
+/**
+ * atomic64_add_return_unchecked - add and return
+ * @i: integer value to add
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically adds @i to @v and returns @i + *@v
+ */
+static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v)
+{
+	alternative_atomic64(add_return_unchecked,
+			     ASM_OUTPUT2("+A" (i), "+c" (v)),
+			     ASM_NO_INPUT_CLOBBER("memory"));
+	return i;
+}
+
 /*
  * Other variants with different arithmetic operators:
  */
@@ -158,6 +235,14 @@ static inline long long atomic64_inc_return(atomic64_t *v)
 	return a;
 }
 
+static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
+{
+	long long a;
+	alternative_atomic64(inc_return_unchecked, "=&A" (a),
+			     "S" (v) : "memory", "ecx");
+	return a;
+}
+
 static inline long long atomic64_dec_return(atomic64_t *v)
 {
 	long long a;
@@ -182,6 +267,21 @@ static inline long long atomic64_add(long long i, atomic64_t *v)
 }
 
 /**
+ * atomic64_add_unchecked - add integer to atomic64 variable
+ * @i: integer value to add
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically adds @i to @v.
+ */
+static inline long long atomic64_add_unchecked(long long i, atomic64_unchecked_t *v)
+{
+	__alternative_atomic64(add_unchecked, add_return_unchecked,
+			       ASM_OUTPUT2("+A" (i), "+c" (v)),
+			       ASM_NO_INPUT_CLOBBER("memory"));
+	return i;
+}
+
+/**
  * atomic64_sub - subtract the atomic64 variable
  * @i: integer value to subtract
  * @v: pointer to type atomic64_t
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 0e1cbfc..5623683 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -18,7 +18,19 @@
  */
 static inline long atomic64_read(const atomic64_t *v)
 {
-	return (*(volatile long *)&(v)->counter);
+	return (*(volatile const long *)&(v)->counter);
+}
+
+/**
+ * atomic64_read_unchecked - read atomic64 variable
+ * @v: pointer of type atomic64_unchecked_t
+ *
+ * Atomically reads the value of @v.
+ * Doesn't imply a read memory barrier.
+ */
+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
+{
+	return (*(volatile const long *)&(v)->counter);
 }
 
 /**
@@ -34,6 +46,18 @@ static inline void atomic64_set(atomic64_t *v, long i)
 }
 
 /**
+ * atomic64_set_unchecked - set atomic64 variable
+ * @v: pointer to type atomic64_unchecked_t
+ * @i: required value
+ *
+ * Atomically sets the value of @v to @i.
+ */
+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
+{
+	v->counter = i;
+}
+
+/**
  * atomic64_add - add integer to atomic64 variable
  * @i: integer value to add
  * @v: pointer to type atomic64_t
@@ -42,6 +66,28 @@ static inline void atomic64_set(atomic64_t *v, long i)
  */
 static inline void atomic64_add(long i, atomic64_t *v)
 {
+	asm volatile(LOCK_PREFIX "addq %1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "subq %1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "=m" (v->counter)
+		     : "er" (i), "m" (v->counter));
+}
+
+/**
+ * atomic64_add_unchecked - add integer to atomic64 variable
+ * @i: integer value to add
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically adds @i to @v.
+ */
+static inline void atomic64_add_unchecked(long i, atomic64_unchecked_t *v)
+{
 	asm volatile(LOCK_PREFIX "addq %1,%0"
 		     : "=m" (v->counter)
 		     : "er" (i), "m" (v->counter));
@@ -56,7 +102,29 @@ static inline void atomic64_add(long i, atomic64_t *v)
  */
 static inline void atomic64_sub(long i, atomic64_t *v)
 {
-	asm volatile(LOCK_PREFIX "subq %1,%0"
+	asm volatile(LOCK_PREFIX "subq %1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "addq %1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "=m" (v->counter)
+		     : "er" (i), "m" (v->counter));
+}
+
+/**
+ * atomic64_sub_unchecked - subtract the atomic64 variable
+ * @i: integer value to subtract
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically subtracts @i from @v.
+ */
+static inline void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "subq %1,%0\n"
 		     : "=m" (v->counter)
 		     : "er" (i), "m" (v->counter));
 }
@@ -74,7 +142,16 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v)
 {
 	unsigned char c;
 
-	asm volatile(LOCK_PREFIX "subq %2,%0; sete %1"
+	asm volatile(LOCK_PREFIX "subq %2,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "addq %2,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sete %1\n"
 		     : "=m" (v->counter), "=qm" (c)
 		     : "er" (i), "m" (v->counter) : "memory");
 	return c;
@@ -88,6 +165,27 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v)
  */
 static inline void atomic64_inc(atomic64_t *v)
 {
+	asm volatile(LOCK_PREFIX "incq %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "decq %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "=m" (v->counter)
+		     : "m" (v->counter));
+}
+
+/**
+ * atomic64_inc_unchecked - increment atomic64 variable
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically increments @v by 1.
+ */
+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
+{
 	asm volatile(LOCK_PREFIX "incq %0"
 		     : "=m" (v->counter)
 		     : "m" (v->counter));
@@ -101,7 +199,28 @@ static inline void atomic64_inc(atomic64_t *v)
  */
 static inline void atomic64_dec(atomic64_t *v)
 {
-	asm volatile(LOCK_PREFIX "decq %0"
+	asm volatile(LOCK_PREFIX "decq %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "incq %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "=m" (v->counter)
+		     : "m" (v->counter));
+}
+
+/**
+ * atomic64_dec_unchecked - decrement atomic64 variable
+ * @v: pointer to type atomic64_t
+ *
+ * Atomically decrements @v by 1.
+ */
+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "decq %0\n"
 		     : "=m" (v->counter)
 		     : "m" (v->counter));
 }
@@ -118,7 +237,16 @@ static inline int atomic64_dec_and_test(atomic64_t *v)
 {
 	unsigned char c;
 
-	asm volatile(LOCK_PREFIX "decq %0; sete %1"
+	asm volatile(LOCK_PREFIX "decq %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "incq %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sete %1\n"
 		     : "=m" (v->counter), "=qm" (c)
 		     : "m" (v->counter) : "memory");
 	return c != 0;
@@ -136,7 +264,16 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
 {
 	unsigned char c;
 
-	asm volatile(LOCK_PREFIX "incq %0; sete %1"
+	asm volatile(LOCK_PREFIX "incq %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "decq %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sete %1\n"
 		     : "=m" (v->counter), "=qm" (c)
 		     : "m" (v->counter) : "memory");
 	return c != 0;
@@ -155,7 +292,16 @@ static inline int atomic64_add_negative(long i, atomic64_t *v)
 {
 	unsigned char c;
 
-	asm volatile(LOCK_PREFIX "addq %2,%0; sets %1"
+	asm volatile(LOCK_PREFIX "addq %2,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "subq %2,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sets %1\n"
 		     : "=m" (v->counter), "=qm" (c)
 		     : "er" (i), "m" (v->counter) : "memory");
 	return c;
@@ -170,6 +316,18 @@ static inline int atomic64_add_negative(long i, atomic64_t *v)
  */
 static inline long atomic64_add_return(long i, atomic64_t *v)
 {
+	return i + xadd_check_overflow(&v->counter, i);
+}
+
+/**
+ * atomic64_add_return_unchecked - add and return
+ * @i: integer value to add
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically adds @i to @v and returns @i + @v
+ */
+static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
+{
 	return i + xadd(&v->counter, i);
 }
 
@@ -179,6 +337,10 @@ static inline long atomic64_sub_return(long i, atomic64_t *v)
 }
 
 #define atomic64_inc_return(v)  (atomic64_add_return(1, (v)))
+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
+{
+	return atomic64_add_return_unchecked(1, v);
+}
 #define atomic64_dec_return(v)  (atomic64_sub_return(1, (v)))
 
 static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
@@ -186,6 +348,11 @@ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
 	return cmpxchg(&v->counter, old, new);
 }
 
+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new)
+{
+	return cmpxchg(&v->counter, old, new);
+}
+
 static inline long atomic64_xchg(atomic64_t *v, long new)
 {
 	return xchg(&v->counter, new);
@@ -202,17 +369,30 @@ static inline long atomic64_xchg(atomic64_t *v, long new)
  */
 static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
 {
-	long c, old;
+	long c, old, new;
 	c = atomic64_read(v);
 	for (;;) {
-		if (unlikely(c == (u)))
+		if (unlikely(c == u))
 			break;
-		old = atomic64_cmpxchg((v), c, c + (a));
+
+		asm volatile("add %2,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+			     "jno 0f\n"
+			     "sub %2,%0\n"
+			     "int $4\n0:\n"
+			     _ASM_EXTABLE(0b, 0b)
+#endif
+
+			     : "=r" (new)
+			     : "0" (c), "ir" (a));
+
+		old = atomic64_cmpxchg(v, c, new);
 		if (likely(old == c))
 			break;
 		c = old;
 	}
-	return c != (u);
+	return c != u;
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 6dfd019..28e188d 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -40,7 +40,7 @@
  * a mask operation on a byte.
  */
 #define IS_IMMEDIATE(nr)		(__builtin_constant_p(nr))
-#define CONST_MASK_ADDR(nr, addr)	BITOP_ADDR((void *)(addr) + ((nr)>>3))
+#define CONST_MASK_ADDR(nr, addr)	BITOP_ADDR((volatile void *)(addr) + ((nr)>>3))
 #define CONST_MASK(nr)			(1 << ((nr) & 7))
 
 /**
@@ -486,7 +486,7 @@ static inline int fls(int x)
  * at position 64.
  */
 #ifdef CONFIG_X86_64
-static __always_inline int fls64(__u64 x)
+static __always_inline long fls64(__u64 x)
 {
 	int bitpos = -1;
 	/*
diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
index 4fa687a..60f2d39 100644
--- a/arch/x86/include/asm/boot.h
+++ b/arch/x86/include/asm/boot.h
@@ -6,10 +6,15 @@
 #include <uapi/asm/boot.h>
 
 /* Physical address where kernel should be loaded. */
-#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
+#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
 				+ (CONFIG_PHYSICAL_ALIGN - 1)) \
 				& ~(CONFIG_PHYSICAL_ALIGN - 1))
 
+#ifndef __ASSEMBLY__
+extern unsigned char __LOAD_PHYSICAL_ADDR[];
+#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR)
+#endif
+
 /* Minimum kernel alignment, as a power of two */
 #ifdef CONFIG_X86_64
 #define MIN_KERNEL_ALIGN_LG2	PMD_SHIFT
diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
index 48f99f1..d78ebf9 100644
--- a/arch/x86/include/asm/cache.h
+++ b/arch/x86/include/asm/cache.h
@@ -5,12 +5,13 @@
 
 /* L1 cache line size */
 #define L1_CACHE_SHIFT	(CONFIG_X86_L1_CACHE_SHIFT)
-#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES	(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
+#define __read_only __attribute__((__section__(".data..read_only")))
 
 #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
-#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
+#define INTERNODE_CACHE_BYTES (_AC(1,UL) << INTERNODE_CACHE_SHIFT)
 
 #ifdef CONFIG_X86_VSMP
 #ifdef CONFIG_SMP
diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h
index 9863ee3..4a1f8e1 100644
--- a/arch/x86/include/asm/cacheflush.h
+++ b/arch/x86/include/asm/cacheflush.h
@@ -27,7 +27,7 @@ static inline unsigned long get_page_memtype(struct page *pg)
 	unsigned long pg_flags = pg->flags & _PGMT_MASK;
 
 	if (pg_flags == _PGMT_DEFAULT)
-		return -1;
+		return ~0UL;
 	else if (pg_flags == _PGMT_WC)
 		return _PAGE_CACHE_WC;
 	else if (pg_flags == _PGMT_UC_MINUS)
diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h
index 46fc474..b02b0f9 100644
--- a/arch/x86/include/asm/checksum_32.h
+++ b/arch/x86/include/asm/checksum_32.h
@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
 					    int len, __wsum sum,
 					    int *src_err_ptr, int *dst_err_ptr);
 
+asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst,
+						  int len, __wsum sum,
+						  int *src_err_ptr, int *dst_err_ptr);
+
+asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst,
+						  int len, __wsum sum,
+						  int *src_err_ptr, int *dst_err_ptr);
+
 /*
  *	Note: when you get a NULL pointer exception here this means someone
  *	passed in an incorrect kernel address to one of these functions.
@@ -50,7 +58,7 @@ static inline __wsum csum_partial_copy_from_user(const void __user *src,
 						 int *err_ptr)
 {
 	might_sleep();
-	return csum_partial_copy_generic((__force void *)src, dst,
+	return csum_partial_copy_generic_from_user((__force void *)src, dst,
 					 len, sum, err_ptr, NULL);
 }
 
@@ -178,7 +186,7 @@ static inline __wsum csum_and_copy_to_user(const void *src,
 {
 	might_sleep();
 	if (access_ok(VERIFY_WRITE, dst, len))
-		return csum_partial_copy_generic(src, (__force void *)dst,
+		return csum_partial_copy_generic_to_user(src, (__force void *)dst,
 						 len, sum, NULL, err_ptr);
 
 	if (len)
diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
index 8d871ea..c1a0dc9 100644
--- a/arch/x86/include/asm/cmpxchg.h
+++ b/arch/x86/include/asm/cmpxchg.h
@@ -14,8 +14,12 @@ extern void __cmpxchg_wrong_size(void)
 	__compiletime_error("Bad argument size for cmpxchg");
 extern void __xadd_wrong_size(void)
 	__compiletime_error("Bad argument size for xadd");
+extern void __xadd_check_overflow_wrong_size(void)
+	__compiletime_error("Bad argument size for xadd_check_overflow");
 extern void __add_wrong_size(void)
 	__compiletime_error("Bad argument size for add");
+extern void __add_check_overflow_wrong_size(void)
+	__compiletime_error("Bad argument size for add_check_overflow");
 
 /*
  * Constants for operation sizes. On 32-bit, the 64-bit size it set to
@@ -67,6 +71,34 @@ extern void __add_wrong_size(void)
 		__ret;							\
 	})
 
+#define __xchg_op_check_overflow(ptr, arg, op, lock)			\
+	({								\
+	        __typeof__ (*(ptr)) __ret = (arg);			\
+		switch (sizeof(*(ptr))) {				\
+		case __X86_CASE_L:					\
+			asm volatile (lock #op "l %0, %1\n"		\
+				      "jno 0f\n"			\
+				      "mov %0,%1\n"			\
+				      "int $4\n0:\n"			\
+				      _ASM_EXTABLE(0b, 0b)		\
+				      : "+r" (__ret), "+m" (*(ptr))	\
+				      : : "memory", "cc");		\
+			break;						\
+		case __X86_CASE_Q:					\
+			asm volatile (lock #op "q %q0, %1\n"		\
+				      "jno 0f\n"			\
+				      "mov %0,%1\n"			\
+				      "int $4\n0:\n"			\
+				      _ASM_EXTABLE(0b, 0b)		\
+				      : "+r" (__ret), "+m" (*(ptr))	\
+				      : : "memory", "cc");		\
+			break;						\
+		default:						\
+			__ ## op ## _check_overflow_wrong_size();	\
+		}							\
+		__ret;							\
+	})
+
 /*
  * Note: no "lock" prefix even on SMP: xchg always implies lock anyway.
  * Since this is generally used to protect other memory information, we
@@ -167,6 +199,9 @@ extern void __add_wrong_size(void)
 #define xadd_sync(ptr, inc)	__xadd((ptr), (inc), "lock; ")
 #define xadd_local(ptr, inc)	__xadd((ptr), (inc), "")
 
+#define __xadd_check_overflow(ptr, inc, lock)	__xchg_op_check_overflow((ptr), (inc), xadd, lock)
+#define xadd_check_overflow(ptr, inc)		__xadd_check_overflow((ptr), (inc), LOCK_PREFIX)
+
 #define __add(ptr, inc, lock)						\
 	({								\
 	        __typeof__ (*(ptr)) __ret = (inc);			\
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 59c6c40..5e0b22c 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -41,7 +41,7 @@ typedef s64 __attribute__((aligned(4))) compat_s64;
 typedef u32		compat_uint_t;
 typedef u32		compat_ulong_t;
 typedef u64 __attribute__((aligned(4))) compat_u64;
-typedef u32		compat_uptr_t;
+typedef u32		__user compat_uptr_t;
 
 struct compat_timespec {
 	compat_time_t	tv_sec;
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 93fe929..90858b7 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -207,7 +207,7 @@
 #define X86_FEATURE_BMI1	(9*32+ 3) /* 1st group bit manipulation extensions */
 #define X86_FEATURE_HLE		(9*32+ 4) /* Hardware Lock Elision */
 #define X86_FEATURE_AVX2	(9*32+ 5) /* AVX2 instructions */
-#define X86_FEATURE_SMEP	(9*32+ 7) /* Supervisor Mode Execution Protection */
+#define X86_FEATURE_SMEP	(9*32+ 7) /* Supervisor Mode Execution Prevention */
 #define X86_FEATURE_BMI2	(9*32+ 8) /* 2nd group bit manipulation extensions */
 #define X86_FEATURE_ERMS	(9*32+ 9) /* Enhanced REP MOVSB/STOSB */
 #define X86_FEATURE_INVPCID	(9*32+10) /* Invalidate Processor Context ID */
@@ -377,7 +377,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
 			     ".section .discard,\"aw\",@progbits\n"
 			     " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
 			     ".previous\n"
-			     ".section .altinstr_replacement,\"ax\"\n"
+			     ".section .altinstr_replacement,\"a\"\n"
 			     "3: movb $1,%0\n"
 			     "4:\n"
 			     ".previous\n"
diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index 8bf1c06..b6ae785 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -4,6 +4,7 @@
 #include <asm/desc_defs.h>
 #include <asm/ldt.h>
 #include <asm/mmu.h>
+#include <asm/pgtable.h>
 
 #include <linux/smp.h>
 #include <linux/percpu.h>
@@ -17,6 +18,7 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
 
 	desc->type		= (info->read_exec_only ^ 1) << 1;
 	desc->type	       |= info->contents << 2;
+	desc->type	       |= info->seg_not_present ^ 1;
 
 	desc->s			= 1;
 	desc->dpl		= 0x3;
@@ -35,19 +37,14 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
 }
 
 extern struct desc_ptr idt_descr;
-extern gate_desc idt_table[];
 extern struct desc_ptr nmi_idt_descr;
-extern gate_desc nmi_idt_table[];
-
-struct gdt_page {
-	struct desc_struct gdt[GDT_ENTRIES];
-} __attribute__((aligned(PAGE_SIZE)));
-
-DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page);
+extern gate_desc idt_table[256];
+extern gate_desc nmi_idt_table[256];
 
+extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)];
 static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
 {
-	return per_cpu(gdt_page, cpu).gdt;
+	return cpu_gdt_table[cpu];
 }
 
 #ifdef CONFIG_X86_64
@@ -72,8 +69,14 @@ static inline void pack_gate(gate_desc *gate, unsigned char type,
 			     unsigned long base, unsigned dpl, unsigned flags,
 			     unsigned short seg)
 {
-	gate->a = (seg << 16) | (base & 0xffff);
-	gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8);
+	gate->gate.offset_low	= base;
+	gate->gate.seg		= seg;
+	gate->gate.reserved	= 0;
+	gate->gate.type		= type;
+	gate->gate.s		= 0;
+	gate->gate.dpl		= dpl;
+	gate->gate.p		= 1;
+	gate->gate.offset_high	= base >> 16;
 }
 
 #endif
@@ -118,12 +121,16 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
 
 static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate)
 {
+	pax_open_kernel();
 	memcpy(&idt[entry], gate, sizeof(*gate));
+	pax_close_kernel();
 }
 
 static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc)
 {
+	pax_open_kernel();
 	memcpy(&ldt[entry], desc, 8);
+	pax_close_kernel();
 }
 
 static inline void
@@ -137,7 +144,9 @@ native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int
 	default:	size = sizeof(*gdt);		break;
 	}
 
+	pax_open_kernel();
 	memcpy(&gdt[entry], desc, size);
+	pax_close_kernel();
 }
 
 static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
@@ -210,7 +219,9 @@ static inline void native_set_ldt(const void *addr, unsigned int entries)
 
 static inline void native_load_tr_desc(void)
 {
+	pax_open_kernel();
 	asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
+	pax_close_kernel();
 }
 
 static inline void native_load_gdt(const struct desc_ptr *dtr)
@@ -247,8 +258,10 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
 	struct desc_struct *gdt = get_cpu_gdt_table(cpu);
 	unsigned int i;
 
+	pax_open_kernel();
 	for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
 		gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
+	pax_close_kernel();
 }
 
 #define _LDT_empty(info)				\
@@ -287,7 +300,7 @@ static inline void load_LDT(mm_context_t *pc)
 	preempt_enable();
 }
 
-static inline unsigned long get_desc_base(const struct desc_struct *desc)
+static inline unsigned long __intentional_overflow(-1) get_desc_base(const struct desc_struct *desc)
 {
 	return (unsigned)(desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24));
 }
@@ -311,7 +324,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
 }
 
 #ifdef CONFIG_X86_64
-static inline void set_nmi_gate(int gate, void *addr)
+static inline void set_nmi_gate(int gate, const void *addr)
 {
 	gate_desc s;
 
@@ -320,7 +333,7 @@ static inline void set_nmi_gate(int gate, void *addr)
 }
 #endif
 
-static inline void _set_gate(int gate, unsigned type, void *addr,
+static inline void _set_gate(int gate, unsigned type, const void *addr,
 			     unsigned dpl, unsigned ist, unsigned seg)
 {
 	gate_desc s;
@@ -339,7 +352,7 @@ static inline void _set_gate(int gate, unsigned type, void *addr,
  * Pentium F0 0F bugfix can have resulted in the mapped
  * IDT being write-protected.
  */
-static inline void set_intr_gate(unsigned int n, void *addr)
+static inline void set_intr_gate(unsigned int n, const void *addr)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_INTERRUPT, addr, 0, 0, __KERNEL_CS);
@@ -369,19 +382,19 @@ static inline void alloc_intr_gate(unsigned int n, void *addr)
 /*
  * This routine sets up an interrupt gate at directory privilege level 3.
  */
-static inline void set_system_intr_gate(unsigned int n, void *addr)
+static inline void set_system_intr_gate(unsigned int n, const void *addr)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
 }
 
-static inline void set_system_trap_gate(unsigned int n, void *addr)
+static inline void set_system_trap_gate(unsigned int n, const void *addr)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
 }
 
-static inline void set_trap_gate(unsigned int n, void *addr)
+static inline void set_trap_gate(unsigned int n, const void *addr)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS);
@@ -390,19 +403,31 @@ static inline void set_trap_gate(unsigned int n, void *addr)
 static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)
 {
 	BUG_ON((unsigned)n > 0xFF);
-	_set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3));
+	_set_gate(n, GATE_TASK, (const void *)0, 0, 0, (gdt_entry<<3));
 }
 
-static inline void set_intr_gate_ist(int n, void *addr, unsigned ist)
+static inline void set_intr_gate_ist(int n, const void *addr, unsigned ist)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS);
 }
 
-static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist)
+static inline void set_system_intr_gate_ist(int n, const void *addr, unsigned ist)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
 }
 
+#ifdef CONFIG_X86_32
+static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu)
+{
+	struct desc_struct d;
+
+	if (likely(limit))
+		limit = (limit - 1UL) >> PAGE_SHIFT;
+	pack_descriptor(&d, base, limit, 0xFB, 0xC);
+	write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S);
+}
+#endif
+
 #endif /* _ASM_X86_DESC_H */
diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
index 278441f..b95a174 100644
--- a/arch/x86/include/asm/desc_defs.h
+++ b/arch/x86/include/asm/desc_defs.h
@@ -31,6 +31,12 @@ struct desc_struct {
 			unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
 			unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
 		};
+		struct {
+			u16 offset_low;
+			u16 seg;
+			unsigned reserved: 8, type: 4, s: 1, dpl: 2, p: 1;
+			unsigned offset_high: 16;
+		} gate;
 	};
 } __attribute__((packed));
 
diff --git a/arch/x86/include/asm/div64.h b/arch/x86/include/asm/div64.h
index ced283a..ffe04cc 100644
--- a/arch/x86/include/asm/div64.h
+++ b/arch/x86/include/asm/div64.h
@@ -39,7 +39,7 @@
 	__mod;							\
 })
 
-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
 {
 	union {
 		u64 v64;
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 9c999c1..3860cb8 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -243,7 +243,25 @@ extern int force_personality32;
    the loader.  We need to make sure that it is out of the way of the program
    that it will "exec", and that there is sufficient room for the brk.  */
 
+#ifdef CONFIG_PAX_SEGMEXEC
+#define ELF_ET_DYN_BASE		((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2)
+#else
 #define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
+#endif
+
+#ifdef CONFIG_PAX_ASLR
+#ifdef CONFIG_X86_32
+#define PAX_ELF_ET_DYN_BASE	0x10000000UL
+
+#define PAX_DELTA_MMAP_LEN	(current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
+#define PAX_DELTA_STACK_LEN	(current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
+#else
+#define PAX_ELF_ET_DYN_BASE	0x400000UL
+
+#define PAX_DELTA_MMAP_LEN	((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
+#define PAX_DELTA_STACK_LEN	((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
+#endif
+#endif
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This could be done in user space,
@@ -296,16 +314,12 @@ do {									\
 
 #define ARCH_DLINFO							\
 do {									\
-	if (vdso_enabled)						\
-		NEW_AUX_ENT(AT_SYSINFO_EHDR,				\
-			    (unsigned long)current->mm->context.vdso);	\
+	NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso);	\
 } while (0)
 
 #define ARCH_DLINFO_X32							\
 do {									\
-	if (vdso_enabled)						\
-		NEW_AUX_ENT(AT_SYSINFO_EHDR,				\
-			    (unsigned long)current->mm->context.vdso);	\
+	NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso);	\
 } while (0)
 
 #define AT_SYSINFO		32
@@ -320,7 +334,7 @@ else									\
 
 #endif /* !CONFIG_X86_32 */
 
-#define VDSO_CURRENT_BASE	((unsigned long)current->mm->context.vdso)
+#define VDSO_CURRENT_BASE	(current->mm->context.vdso)
 
 #define VDSO_ENTRY							\
 	((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall))
@@ -336,9 +350,6 @@ extern int x32_setup_additional_pages(struct linux_binprm *bprm,
 extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
 #define compat_arch_setup_additional_pages	syscall32_setup_pages
 
-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
-#define arch_randomize_brk arch_randomize_brk
-
 /*
  * True on X86_32 or when emulating IA32 on X86_64
  */
diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h
index 75ce3f4..882e801 100644
--- a/arch/x86/include/asm/emergency-restart.h
+++ b/arch/x86/include/asm/emergency-restart.h
@@ -13,6 +13,6 @@ enum reboot_type {
 
 extern enum reboot_type reboot_type;
 
-extern void machine_emergency_restart(void);
+extern void machine_emergency_restart(void) __noreturn;
 
 #endif /* _ASM_X86_EMERGENCY_RESTART_H */
diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index e25cc33..425d099 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -127,7 +127,9 @@ static inline void sanitize_i387_state(struct task_struct *tsk)
 ({									\
 	int err;							\
 	asm volatile(ASM_STAC "\n"					\
-		     "1:" #insn "\n\t"					\
+		     "1:"						\
+		     __copyuser_seg					\
+		     #insn "\n\t"					\
 		     "2: " ASM_CLAC "\n"				\
 		     ".section .fixup,\"ax\"\n"				\
 		     "3:  movl $-1,%[err]\n"				\
@@ -300,7 +302,7 @@ static inline int restore_fpu_checking(struct task_struct *tsk)
 		"emms\n\t"		/* clear stack tags */
 		"fildl %P[addr]",	/* set F?P to defined value */
 		X86_FEATURE_FXSAVE_LEAK,
-		[addr] "m" (tsk->thread.fpu.has_fpu));
+		[addr] "m" (init_tss[raw_smp_processor_id()].x86_tss.sp0));
 
 	return fpu_restore_checking(&tsk->thread.fpu);
 }
diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
index be27ba1..8f13ff9 100644
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -12,6 +12,7 @@
 #include <asm/smap.h>
 
 #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg)	\
+	typecheck(u32 __user *, uaddr);				\
 	asm volatile("\t" ASM_STAC "\n"				\
 		     "1:\t" insn "\n"				\
 		     "2:\t" ASM_CLAC "\n"			\
@@ -20,15 +21,16 @@
 		     "\tjmp\t2b\n"				\
 		     "\t.previous\n"				\
 		     _ASM_EXTABLE(1b, 3b)			\
-		     : "=r" (oldval), "=r" (ret), "+m" (*uaddr)	\
+		     : "=r" (oldval), "=r" (ret), "+m" (*(u32 __user *)____m(uaddr))	\
 		     : "i" (-EFAULT), "0" (oparg), "1" (0))
 
 #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg)	\
+	typecheck(u32 __user *, uaddr);				\
 	asm volatile("\t" ASM_STAC "\n"				\
 		     "1:\tmovl	%2, %0\n"			\
 		     "\tmovl\t%0, %3\n"				\
 		     "\t" insn "\n"				\
-		     "2:\t" LOCK_PREFIX "cmpxchgl %3, %2\n"	\
+		     "2:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %3, %2\n"	\
 		     "\tjnz\t1b\n"				\
 		     "3:\t" ASM_CLAC "\n"			\
 		     "\t.section .fixup,\"ax\"\n"		\
@@ -38,7 +40,7 @@
 		     _ASM_EXTABLE(1b, 4b)			\
 		     _ASM_EXTABLE(2b, 4b)			\
 		     : "=&a" (oldval), "=&r" (ret),		\
-		       "+m" (*uaddr), "=&r" (tem)		\
+		       "+m" (*(u32 __user *)____m(uaddr)), "=&r" (tem)	\
 		     : "r" (oparg), "i" (-EFAULT), "1" (0))
 
 static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
@@ -59,10 +61,10 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	switch (op) {
 	case FUTEX_OP_SET:
-		__futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
+		__futex_atomic_op1(__copyuser_seg"xchgl %0, %2", ret, oldval, uaddr, oparg);
 		break;
 	case FUTEX_OP_ADD:
-		__futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
+		__futex_atomic_op1(LOCK_PREFIX __copyuser_seg"xaddl %0, %2", ret, oldval,
 				   uaddr, oparg);
 		break;
 	case FUTEX_OP_OR:
@@ -116,14 +118,14 @@ static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 		return -EFAULT;
 
 	asm volatile("\t" ASM_STAC "\n"
-		     "1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n"
+		     "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %4, %2\n"
 		     "2:\t" ASM_CLAC "\n"
 		     "\t.section .fixup, \"ax\"\n"
 		     "3:\tmov     %3, %0\n"
 		     "\tjmp     2b\n"
 		     "\t.previous\n"
 		     _ASM_EXTABLE(1b, 3b)
-		     : "+r" (ret), "=a" (oldval), "+m" (*uaddr)
+		     : "+r" (ret), "=a" (oldval), "+m" (*(u32 __user *)____m(uaddr))
 		     : "i" (-EFAULT), "r" (newval), "1" (oldval)
 		     : "memory"
 	);
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index 10a78c3..cc77143 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -147,8 +147,8 @@ extern void setup_ioapic_dest(void);
 extern void enable_IO_APIC(void);
 
 /* Statistics */
-extern atomic_t irq_err_count;
-extern atomic_t irq_mis_count;
+extern atomic_unchecked_t irq_err_count;
+extern atomic_unchecked_t irq_mis_count;
 
 /* EISA */
 extern void eisa_set_level_irq(unsigned int irq);
diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
index a203659..9889f1c 100644
--- a/arch/x86/include/asm/i8259.h
+++ b/arch/x86/include/asm/i8259.h
@@ -62,7 +62,7 @@ struct legacy_pic {
 	void (*init)(int auto_eoi);
 	int (*irq_pending)(unsigned int irq);
 	void (*make_irq)(unsigned int irq);
-};
+} __do_const;
 
 extern struct legacy_pic *legacy_pic;
 extern struct legacy_pic null_legacy_pic;
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index d8e8eef..1765f78 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -51,12 +51,12 @@ static inline void name(type val, volatile void __iomem *addr) \
 "m" (*(volatile type __force *)addr) barrier); }
 
 build_mmio_read(readb, "b", unsigned char, "=q", :"memory")
-build_mmio_read(readw, "w", unsigned short, "=r", :"memory")
-build_mmio_read(readl, "l", unsigned int, "=r", :"memory")
+build_mmio_read(__intentional_overflow(-1) readw, "w", unsigned short, "=r", :"memory")
+build_mmio_read(__intentional_overflow(-1) readl, "l", unsigned int, "=r", :"memory")
 
 build_mmio_read(__readb, "b", unsigned char, "=q", )
-build_mmio_read(__readw, "w", unsigned short, "=r", )
-build_mmio_read(__readl, "l", unsigned int, "=r", )
+build_mmio_read(__intentional_overflow(-1) __readw, "w", unsigned short, "=r", )
+build_mmio_read(__intentional_overflow(-1) __readl, "l", unsigned int, "=r", )
 
 build_mmio_write(writeb, "b", unsigned char, "q", :"memory")
 build_mmio_write(writew, "w", unsigned short, "r", :"memory")
@@ -184,7 +184,7 @@ static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
 	return ioremap_nocache(offset, size);
 }
 
-extern void iounmap(volatile void __iomem *addr);
+extern void iounmap(const volatile void __iomem *addr);
 
 extern void set_iounmap_nonlazy(void);
 
@@ -194,6 +194,17 @@ extern void set_iounmap_nonlazy(void);
 
 #include <linux/vmalloc.h>
 
+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
+static inline int valid_phys_addr_range(unsigned long addr, size_t count)
+{
+	return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
+}
+
+static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t count)
+{
+	return (pfn + (count >> PAGE_SHIFT)) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
+}
+
 /*
  * Convert a virtual cached pointer to an uncached pointer
  */
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index bba3cf8..06bc8da 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -141,6 +141,11 @@ static inline notrace unsigned long arch_local_irq_save(void)
 	sti;					\
 	sysexit
 
+#define GET_CR0_INTO_RDI		mov %cr0, %rdi
+#define SET_RDI_INTO_CR0		mov %rdi, %cr0
+#define GET_CR3_INTO_RDI		mov %cr3, %rdi
+#define SET_RDI_INTO_CR3		mov %rdi, %cr3
+
 #else
 #define INTERRUPT_RETURN		iret
 #define ENABLE_INTERRUPTS_SYSEXIT	sti; sysexit
diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
index 5a6d287..f815789 100644
--- a/arch/x86/include/asm/kprobes.h
+++ b/arch/x86/include/asm/kprobes.h
@@ -38,13 +38,8 @@ typedef u8 kprobe_opcode_t;
 #define RELATIVEJUMP_SIZE 5
 #define RELATIVECALL_OPCODE 0xe8
 #define RELATIVE_ADDR_SIZE 4
-#define MAX_STACK_SIZE 64
-#define MIN_STACK_SIZE(ADDR)					       \
-	(((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \
-			      THREAD_SIZE - (unsigned long)(ADDR)))    \
-	 ? (MAX_STACK_SIZE)					       \
-	 : (((unsigned long)current_thread_info()) +		       \
-	    THREAD_SIZE - (unsigned long)(ADDR)))
+#define MAX_STACK_SIZE 64UL
+#define MIN_STACK_SIZE(ADDR)	min(MAX_STACK_SIZE, current->thread.sp0 - (unsigned long)(ADDR))
 
 #define flush_insn_slot(p)	do { } while (0)
 
diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
index 2d89e39..baee879 100644
--- a/arch/x86/include/asm/local.h
+++ b/arch/x86/include/asm/local.h
@@ -10,33 +10,97 @@ typedef struct {
 	atomic_long_t a;
 } local_t;
 
+typedef struct {
+	atomic_long_unchecked_t a;
+} local_unchecked_t;
+
 #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
 
 #define local_read(l)	atomic_long_read(&(l)->a)
+#define local_read_unchecked(l)	atomic_long_read_unchecked(&(l)->a)
 #define local_set(l, i)	atomic_long_set(&(l)->a, (i))
+#define local_set_unchecked(l, i)	atomic_long_set_unchecked(&(l)->a, (i))
 
 static inline void local_inc(local_t *l)
 {
-	asm volatile(_ASM_INC "%0"
+	asm volatile(_ASM_INC "%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_DEC "%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (l->a.counter));
+}
+
+static inline void local_inc_unchecked(local_unchecked_t *l)
+{
+	asm volatile(_ASM_INC "%0\n"
 		     : "+m" (l->a.counter));
 }
 
 static inline void local_dec(local_t *l)
 {
-	asm volatile(_ASM_DEC "%0"
+	asm volatile(_ASM_DEC "%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_INC "%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (l->a.counter));
+}
+
+static inline void local_dec_unchecked(local_unchecked_t *l)
+{
+	asm volatile(_ASM_DEC "%0\n"
 		     : "+m" (l->a.counter));
 }
 
 static inline void local_add(long i, local_t *l)
 {
-	asm volatile(_ASM_ADD "%1,%0"
+	asm volatile(_ASM_ADD "%1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_SUB "%1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (l->a.counter)
+		     : "ir" (i));
+}
+
+static inline void local_add_unchecked(long i, local_unchecked_t *l)
+{
+	asm volatile(_ASM_ADD "%1,%0\n"
 		     : "+m" (l->a.counter)
 		     : "ir" (i));
 }
 
 static inline void local_sub(long i, local_t *l)
 {
-	asm volatile(_ASM_SUB "%1,%0"
+	asm volatile(_ASM_SUB "%1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_ADD "%1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (l->a.counter)
+		     : "ir" (i));
+}
+
+static inline void local_sub_unchecked(long i, local_unchecked_t *l)
+{
+	asm volatile(_ASM_SUB "%1,%0\n"
 		     : "+m" (l->a.counter)
 		     : "ir" (i));
 }
@@ -54,7 +118,16 @@ static inline int local_sub_and_test(long i, local_t *l)
 {
 	unsigned char c;
 
-	asm volatile(_ASM_SUB "%2,%0; sete %1"
+	asm volatile(_ASM_SUB "%2,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_ADD "%2,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sete %1\n"
 		     : "+m" (l->a.counter), "=qm" (c)
 		     : "ir" (i) : "memory");
 	return c;
@@ -72,7 +145,16 @@ static inline int local_dec_and_test(local_t *l)
 {
 	unsigned char c;
 
-	asm volatile(_ASM_DEC "%0; sete %1"
+	asm volatile(_ASM_DEC "%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_INC "%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sete %1\n"
 		     : "+m" (l->a.counter), "=qm" (c)
 		     : : "memory");
 	return c != 0;
@@ -90,7 +172,16 @@ static inline int local_inc_and_test(local_t *l)
 {
 	unsigned char c;
 
-	asm volatile(_ASM_INC "%0; sete %1"
+	asm volatile(_ASM_INC "%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_DEC "%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sete %1\n"
 		     : "+m" (l->a.counter), "=qm" (c)
 		     : : "memory");
 	return c != 0;
@@ -109,7 +200,16 @@ static inline int local_add_negative(long i, local_t *l)
 {
 	unsigned char c;
 
-	asm volatile(_ASM_ADD "%2,%0; sets %1"
+	asm volatile(_ASM_ADD "%2,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_SUB "%2,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     "sets %1\n"
 		     : "+m" (l->a.counter), "=qm" (c)
 		     : "ir" (i) : "memory");
 	return c;
@@ -125,6 +225,30 @@ static inline int local_add_negative(long i, local_t *l)
 static inline long local_add_return(long i, local_t *l)
 {
 	long __i = i;
+	asm volatile(_ASM_XADD "%0, %1\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_MOV "%0,%1\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+r" (i), "+m" (l->a.counter)
+		     : : "memory");
+	return i + __i;
+}
+
+/**
+ * local_add_return_unchecked - add and return
+ * @i: integer value to add
+ * @l: pointer to type local_unchecked_t
+ *
+ * Atomically adds @i to @l and returns @i + @l
+ */
+static inline long local_add_return_unchecked(long i, local_unchecked_t *l)
+{
+	long __i = i;
 	asm volatile(_ASM_XADD "%0, %1;"
 		     : "+r" (i), "+m" (l->a.counter)
 		     : : "memory");
@@ -141,6 +265,8 @@ static inline long local_sub_return(long i, local_t *l)
 
 #define local_cmpxchg(l, o, n) \
 	(cmpxchg_local(&((l)->a.counter), (o), (n)))
+#define local_cmpxchg_unchecked(l, o, n) \
+	(cmpxchg_local(&((l)->a.counter), (o), (n)))
 /* Always has a lock prefix */
 #define local_xchg(l, n) (xchg(&((l)->a.counter), (n)))
 
diff --git a/arch/x86/include/asm/mman.h b/arch/x86/include/asm/mman.h
new file mode 100644
index 0000000..2bfd3ba
--- /dev/null
+++ b/arch/x86/include/asm/mman.h
@@ -0,0 +1,15 @@
+#ifndef _X86_MMAN_H
+#define _X86_MMAN_H
+
+#include <uapi/asm/mman.h>
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+#ifdef CONFIG_X86_32
+#define arch_mmap_check	i386_mmap_check
+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags);
+#endif
+#endif
+#endif
+
+#endif /* X86_MMAN_H */
diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
index 5f55e69..e20bfb1 100644
--- a/arch/x86/include/asm/mmu.h
+++ b/arch/x86/include/asm/mmu.h
@@ -9,7 +9,7 @@
  * we put the segment information here.
  */
 typedef struct {
-	void *ldt;
+	struct desc_struct *ldt;
 	int size;
 
 #ifdef CONFIG_X86_64
@@ -18,7 +18,19 @@ typedef struct {
 #endif
 
 	struct mutex lock;
-	void *vdso;
+	unsigned long vdso;
+
+#ifdef CONFIG_X86_32
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+	unsigned long user_cs_base;
+	unsigned long user_cs_limit;
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
+	cpumask_t cpu_user_cs_mask;
+#endif
+
+#endif
+#endif
 } mm_context_t;
 
 #ifdef CONFIG_SMP
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index cdbf367..adb37ac 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -24,6 +24,18 @@ void destroy_context(struct mm_struct *mm);
 
 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 {
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	unsigned int i;
+	pgd_t *pgd;
+
+	pax_open_kernel();
+	pgd = get_cpu_pgd(smp_processor_id());
+	for (i = USER_PGD_PTRS; i < 2 * USER_PGD_PTRS; ++i)
+		set_pgd_batched(pgd+i, native_make_pgd(0));
+	pax_close_kernel();
+#endif
+
 #ifdef CONFIG_SMP
 	if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
 		this_cpu_write(cpu_tlbstate.state, TLBSTATE_LAZY);
@@ -34,16 +46,30 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 			     struct task_struct *tsk)
 {
 	unsigned cpu = smp_processor_id();
+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
+	int tlbstate = TLBSTATE_OK;
+#endif
 
 	if (likely(prev != next)) {
 #ifdef CONFIG_SMP
+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
+		tlbstate = this_cpu_read(cpu_tlbstate.state);
+#endif
 		this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
 		this_cpu_write(cpu_tlbstate.active_mm, next);
 #endif
 		cpumask_set_cpu(cpu, mm_cpumask(next));
 
 		/* Re-load page tables */
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		pax_open_kernel();
+		__clone_user_pgds(get_cpu_pgd(cpu), next->pgd);
+		__shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd);
+		pax_close_kernel();
+		load_cr3(get_cpu_pgd(cpu));
+#else
 		load_cr3(next->pgd);
+#endif
 
 		/* stop flush ipis for the previous mm */
 		cpumask_clear_cpu(cpu, mm_cpumask(prev));
@@ -53,9 +79,38 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 		 */
 		if (unlikely(prev->context.ldt != next->context.ldt))
 			load_LDT_nolock(&next->context);
-	}
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
+		if (!(__supported_pte_mask & _PAGE_NX)) {
+			smp_mb__before_clear_bit();
+			cpu_clear(cpu, prev->context.cpu_user_cs_mask);
+			smp_mb__after_clear_bit();
+			cpu_set(cpu, next->context.cpu_user_cs_mask);
+		}
+#endif
+
+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
+		if (unlikely(prev->context.user_cs_base != next->context.user_cs_base ||
+			     prev->context.user_cs_limit != next->context.user_cs_limit))
+			set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
 #ifdef CONFIG_SMP
+		else if (unlikely(tlbstate != TLBSTATE_OK))
+			set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
+#endif
+#endif
+
+	}
 	else {
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		pax_open_kernel();
+		__clone_user_pgds(get_cpu_pgd(cpu), next->pgd);
+		__shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd);
+		pax_close_kernel();
+		load_cr3(get_cpu_pgd(cpu));
+#endif
+
+#ifdef CONFIG_SMP
 		this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
 		BUG_ON(this_cpu_read(cpu_tlbstate.active_mm) != next);
 
@@ -64,11 +119,28 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 			 * tlb flush IPI delivery. We must reload CR3
 			 * to make sure to use no freed page tables.
 			 */
+
+#ifndef CONFIG_PAX_PER_CPU_PGD
 			load_cr3(next->pgd);
+#endif
+
 			load_LDT_nolock(&next->context);
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
+			if (!(__supported_pte_mask & _PAGE_NX))
+				cpu_set(cpu, next->context.cpu_user_cs_mask);
+#endif
+
+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
+#ifdef CONFIG_PAX_PAGEEXEC
+			if (!((next->pax_flags & MF_PAX_PAGEEXEC) && (__supported_pte_mask & _PAGE_NX)))
+#endif
+				set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
+#endif
+
 		}
+#endif
 	}
-#endif
 }
 
 #define activate_mm(prev, next)			\
diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
index e3b7819..b257c64 100644
--- a/arch/x86/include/asm/module.h
+++ b/arch/x86/include/asm/module.h
@@ -5,6 +5,7 @@
 
 #ifdef CONFIG_X86_64
 /* X86_64 does not define MODULE_PROC_FAMILY */
+#define MODULE_PROC_FAMILY ""
 #elif defined CONFIG_M486
 #define MODULE_PROC_FAMILY "486 "
 #elif defined CONFIG_M586
@@ -57,8 +58,20 @@
 #error unknown processor family
 #endif
 
-#ifdef CONFIG_X86_32
-# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
+#define MODULE_PAX_KERNEXEC "KERNEXEC_BTS "
+#elif defined(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR)
+#define MODULE_PAX_KERNEXEC "KERNEXEC_OR "
+#else
+#define MODULE_PAX_KERNEXEC ""
 #endif
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+#define MODULE_PAX_UDEREF "UDEREF "
+#else
+#define MODULE_PAX_UDEREF ""
+#endif
+
+#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF
+
 #endif /* _ASM_X86_MODULE_H */
diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
index c0fa356..07a498a 100644
--- a/arch/x86/include/asm/nmi.h
+++ b/arch/x86/include/asm/nmi.h
@@ -42,11 +42,11 @@ struct nmiaction {
 	nmi_handler_t		handler;
 	unsigned long		flags;
 	const char		*name;
-};
+} __do_const;
 
 #define register_nmi_handler(t, fn, fg, n, init...)	\
 ({							\
-	static struct nmiaction init fn##_na = {	\
+	static const struct nmiaction init fn##_na = {	\
 		.handler = (fn),			\
 		.name = (n),				\
 		.flags = (fg),				\
@@ -54,7 +54,7 @@ struct nmiaction {
 	__register_nmi_handler((t), &fn##_na);		\
 })
 
-int __register_nmi_handler(unsigned int, struct nmiaction *);
+int __register_nmi_handler(unsigned int, const struct nmiaction *);
 
 void unregister_nmi_handler(unsigned int, const char *);
 
diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
index 0f1ddee..e2fc3d1 100644
--- a/arch/x86/include/asm/page_64.h
+++ b/arch/x86/include/asm/page_64.h
@@ -7,9 +7,9 @@
 
 /* duplicated to the one in bootmem.h */
 extern unsigned long max_pfn;
-extern unsigned long phys_base;
+extern const unsigned long phys_base;
 
-static inline unsigned long __phys_addr_nodebug(unsigned long x)
+static inline unsigned long __intentional_overflow(-1) __phys_addr_nodebug(unsigned long x)
 {
 	unsigned long y = x - __START_KERNEL_map;
 
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 7361e47..16dc226 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -564,7 +564,7 @@ static inline pmd_t __pmd(pmdval_t val)
 	return (pmd_t) { ret };
 }
 
-static inline pmdval_t pmd_val(pmd_t pmd)
+static inline __intentional_overflow(-1) pmdval_t pmd_val(pmd_t pmd)
 {
 	pmdval_t ret;
 
@@ -630,6 +630,18 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
 			    val);
 }
 
+static inline void set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
+{
+	pgdval_t val = native_pgd_val(pgd);
+
+	if (sizeof(pgdval_t) > sizeof(long))
+		PVOP_VCALL3(pv_mmu_ops.set_pgd_batched, pgdp,
+			    val, (u64)val >> 32);
+	else
+		PVOP_VCALL2(pv_mmu_ops.set_pgd_batched, pgdp,
+			    val);
+}
+
 static inline void pgd_clear(pgd_t *pgdp)
 {
 	set_pgd(pgdp, __pgd(0));
@@ -714,6 +726,21 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
 	pv_mmu_ops.set_fixmap(idx, phys, flags);
 }
 
+#ifdef CONFIG_PAX_KERNEXEC
+static inline unsigned long pax_open_kernel(void)
+{
+	return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_open_kernel);
+}
+
+static inline unsigned long pax_close_kernel(void)
+{
+	return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_close_kernel);
+}
+#else
+static inline unsigned long pax_open_kernel(void) { return 0; }
+static inline unsigned long pax_close_kernel(void) { return 0; }
+#endif
+
 #if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
 
 static inline int arch_spin_is_locked(struct arch_spinlock *lock)
@@ -930,7 +957,7 @@ extern void default_banner(void);
 
 #define PARA_PATCH(struct, off)        ((PARAVIRT_PATCH_##struct + (off)) / 4)
 #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
-#define PARA_INDIRECT(addr)	*%cs:addr
+#define PARA_INDIRECT(addr)	*%ss:addr
 #endif
 
 #define INTERRUPT_RETURN						\
@@ -1005,6 +1032,21 @@ extern void default_banner(void);
 	PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit),	\
 		  CLBR_NONE,						\
 		  jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
+
+#define GET_CR0_INTO_RDI				\
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0);	\
+	mov %rax,%rdi
+
+#define SET_RDI_INTO_CR0				\
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
+
+#define GET_CR3_INTO_RDI				\
+	call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr3);	\
+	mov %rax,%rdi
+
+#define SET_RDI_INTO_CR3				\
+	call PARA_INDIRECT(pv_mmu_ops+PV_MMU_write_cr3)
+
 #endif	/* CONFIG_X86_32 */
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index b3b0ec1..b1cd3eb 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -84,7 +84,7 @@ struct pv_init_ops {
 	 */
 	unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
 			  unsigned long addr, unsigned len);
-};
+} __no_const;
 
 
 struct pv_lazy_ops {
@@ -98,7 +98,7 @@ struct pv_time_ops {
 	unsigned long long (*sched_clock)(void);
 	unsigned long long (*steal_clock)(int cpu);
 	unsigned long (*get_tsc_khz)(void);
-};
+} __no_const;
 
 struct pv_cpu_ops {
 	/* hooks for various privileged instructions */
@@ -192,7 +192,7 @@ struct pv_cpu_ops {
 
 	void (*start_context_switch)(struct task_struct *prev);
 	void (*end_context_switch)(struct task_struct *next);
-};
+} __no_const;
 
 struct pv_irq_ops {
 	/*
@@ -223,7 +223,7 @@ struct pv_apic_ops {
 				 unsigned long start_eip,
 				 unsigned long start_esp);
 #endif
-};
+} __no_const;
 
 struct pv_mmu_ops {
 	unsigned long (*read_cr2)(void);
@@ -313,6 +313,7 @@ struct pv_mmu_ops {
 	struct paravirt_callee_save make_pud;
 
 	void (*set_pgd)(pgd_t *pudp, pgd_t pgdval);
+	void (*set_pgd_batched)(pgd_t *pudp, pgd_t pgdval);
 #endif	/* PAGETABLE_LEVELS == 4 */
 #endif	/* PAGETABLE_LEVELS >= 3 */
 
@@ -324,6 +325,12 @@ struct pv_mmu_ops {
 	   an mfn.  We can tell which is which from the index. */
 	void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
 			   phys_addr_t phys, pgprot_t flags);
+
+#ifdef CONFIG_PAX_KERNEXEC
+	unsigned long (*pax_open_kernel)(void);
+	unsigned long (*pax_close_kernel)(void);
+#endif
+
 };
 
 struct arch_spinlock;
@@ -334,7 +341,7 @@ struct pv_lock_ops {
 	void (*spin_lock_flags)(struct arch_spinlock *lock, unsigned long flags);
 	int (*spin_trylock)(struct arch_spinlock *lock);
 	void (*spin_unlock)(struct arch_spinlock *lock);
-};
+} __no_const;
 
 /* This contains all the paravirt structures: we get a convenient
  * number for each function using the offset which we use to indicate
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index b4389a4..7024269 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(struct mm_struct *mm,
 				       pmd_t *pmd, pte_t *pte)
 {
 	paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
+	set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE));
+}
+
+static inline void pmd_populate_user(struct mm_struct *mm,
+				       pmd_t *pmd, pte_t *pte)
+{
+	paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
 	set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
 }
 
@@ -99,12 +106,22 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
 
 #ifdef CONFIG_X86_PAE
 extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
+{
+	pud_populate(mm, pudp, pmd);
+}
 #else	/* !CONFIG_X86_PAE */
 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 {
 	paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
 	set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
 }
+
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
+	set_pud(pud, __pud(_KERNPG_TABLE | __pa(pmd)));
+}
 #endif	/* CONFIG_X86_PAE */
 
 #if PAGETABLE_LEVELS > 3
@@ -114,6 +131,12 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
 	set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
 }
 
+static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
+{
+	paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
+	set_pgd(pgd, __pgd(_KERNPG_TABLE | __pa(pud)));
+}
+
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
 	return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
index f2b489c..4f7e2e5 100644
--- a/arch/x86/include/asm/pgtable-2level.h
+++ b/arch/x86/include/asm/pgtable-2level.h
@@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte)
 
 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
 {
+	pax_open_kernel();
 	*pmdp = pmd;
+	pax_close_kernel();
 }
 
 static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index 4cc9f2b..5fd9226 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -92,12 +92,16 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
 
 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
 {
+	pax_open_kernel();
 	set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd));
+	pax_close_kernel();
 }
 
 static inline void native_set_pud(pud_t *pudp, pud_t pud)
 {
+	pax_open_kernel();
 	set_64bit((unsigned long long *)(pudp), native_pud_val(pud));
+	pax_close_kernel();
 }
 
 /*
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 1e67223..dd6e7ea 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -44,6 +44,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
 
 #ifndef __PAGETABLE_PUD_FOLDED
 #define set_pgd(pgdp, pgd)		native_set_pgd(pgdp, pgd)
+#define set_pgd_batched(pgdp, pgd)	native_set_pgd_batched(pgdp, pgd)
 #define pgd_clear(pgd)			native_pgd_clear(pgd)
 #endif
 
@@ -81,12 +82,51 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
 
 #define arch_end_context_switch(prev)	do {} while(0)
 
+#define pax_open_kernel()	native_pax_open_kernel()
+#define pax_close_kernel()	native_pax_close_kernel()
 #endif	/* CONFIG_PARAVIRT */
 
+#define  __HAVE_ARCH_PAX_OPEN_KERNEL
+#define  __HAVE_ARCH_PAX_CLOSE_KERNEL
+
+#ifdef CONFIG_PAX_KERNEXEC
+static inline unsigned long native_pax_open_kernel(void)
+{
+	unsigned long cr0;
+
+	preempt_disable();
+	barrier();
+	cr0 = read_cr0() ^ X86_CR0_WP;
+	BUG_ON(cr0 & X86_CR0_WP);
+	write_cr0(cr0);
+	return cr0 ^ X86_CR0_WP;
+}
+
+static inline unsigned long native_pax_close_kernel(void)
+{
+	unsigned long cr0;
+
+	cr0 = read_cr0() ^ X86_CR0_WP;
+	BUG_ON(!(cr0 & X86_CR0_WP));
+	write_cr0(cr0);
+	barrier();
+	preempt_enable_no_resched();
+	return cr0 ^ X86_CR0_WP;
+}
+#else
+static inline unsigned long native_pax_open_kernel(void) { return 0; }
+static inline unsigned long native_pax_close_kernel(void) { return 0; }
+#endif
+
 /*
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
+static inline int pte_user(pte_t pte)
+{
+	return pte_val(pte) & _PAGE_USER;
+}
+
 static inline int pte_dirty(pte_t pte)
 {
 	return pte_flags(pte) & _PAGE_DIRTY;
@@ -147,6 +187,11 @@ static inline unsigned long pud_pfn(pud_t pud)
 	return (pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT;
 }
 
+static inline unsigned long pgd_pfn(pgd_t pgd)
+{
+	return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
+}
+
 #define pte_page(pte)	pfn_to_page(pte_pfn(pte))
 
 static inline int pmd_large(pmd_t pte)
@@ -200,9 +245,29 @@ static inline pte_t pte_wrprotect(pte_t pte)
 	return pte_clear_flags(pte, _PAGE_RW);
 }
 
+static inline pte_t pte_mkread(pte_t pte)
+{
+	return __pte(pte_val(pte) | _PAGE_USER);
+}
+
 static inline pte_t pte_mkexec(pte_t pte)
 {
-	return pte_clear_flags(pte, _PAGE_NX);
+#ifdef CONFIG_X86_PAE
+	if (__supported_pte_mask & _PAGE_NX)
+		return pte_clear_flags(pte, _PAGE_NX);
+	else
+#endif
+		return pte_set_flags(pte, _PAGE_USER);
+}
+
+static inline pte_t pte_exprotect(pte_t pte)
+{
+#ifdef CONFIG_X86_PAE
+	if (__supported_pte_mask & _PAGE_NX)
+		return pte_set_flags(pte, _PAGE_NX);
+	else
+#endif
+		return pte_clear_flags(pte, _PAGE_USER);
 }
 
 static inline pte_t pte_mkdirty(pte_t pte)
@@ -394,6 +459,15 @@ pte_t *populate_extra_pte(unsigned long vaddr);
 #endif
 
 #ifndef __ASSEMBLY__
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+extern pgd_t cpu_pgd[NR_CPUS][PTRS_PER_PGD];
+static inline pgd_t *get_cpu_pgd(unsigned int cpu)
+{
+	return cpu_pgd[cpu];
+}
+#endif
+
 #include <linux/mm_types.h>
 #include <linux/log2.h>
 
@@ -529,7 +603,7 @@ static inline unsigned long pud_page_vaddr(pud_t pud)
  * Currently stuck as a macro due to indirect forward reference to
  * linux/mmzone.h's __section_mem_map_addr() definition:
  */
-#define pud_page(pud)		pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
+#define pud_page(pud)		pfn_to_page((pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT)
 
 /* Find an entry in the second-level page table.. */
 static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
@@ -569,7 +643,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
  * Currently stuck as a macro due to indirect forward reference to
  * linux/mmzone.h's __section_mem_map_addr() definition:
  */
-#define pgd_page(pgd)		pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)
+#define pgd_page(pgd)		pfn_to_page((pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT)
 
 /* to find an entry in a page-table-directory. */
 static inline unsigned long pud_index(unsigned long address)
@@ -584,7 +658,7 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
 
 static inline int pgd_bad(pgd_t pgd)
 {
-	return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE;
+	return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
 }
 
 static inline int pgd_none(pgd_t pgd)
@@ -607,7 +681,12 @@ static inline int pgd_none(pgd_t pgd)
  * pgd_offset() returns a (pgd_t *)
  * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
  */
-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address)))
+#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+#define pgd_offset_cpu(cpu, address) (get_cpu_pgd(cpu) + pgd_index(address))
+#endif
+
 /*
  * a shortcut which implies the use of the kernel's pgd, instead
  * of a process's
@@ -618,6 +697,22 @@ static inline int pgd_none(pgd_t pgd)
 #define KERNEL_PGD_BOUNDARY	pgd_index(PAGE_OFFSET)
 #define KERNEL_PGD_PTRS		(PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
 
+#ifdef CONFIG_X86_32
+#define USER_PGD_PTRS		KERNEL_PGD_BOUNDARY
+#else
+#define TASK_SIZE_MAX_SHIFT CONFIG_TASK_SIZE_MAX_SHIFT
+#define USER_PGD_PTRS		(_AC(1,UL) << (TASK_SIZE_MAX_SHIFT - PGDIR_SHIFT))
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+#ifdef __ASSEMBLY__
+#define pax_user_shadow_base	pax_user_shadow_base(%rip)
+#else
+extern unsigned long pax_user_shadow_base;
+#endif
+#endif
+
+#endif
+
 #ifndef __ASSEMBLY__
 
 extern int direct_gbpages;
@@ -784,11 +879,24 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
  * dst and src can be on the same page, but the range must not overlap,
  * and must not cross a page boundary.
  */
-static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
+static inline void clone_pgd_range(pgd_t *dst, const pgd_t *src, int count)
 {
-       memcpy(dst, src, count * sizeof(pgd_t));
+	pax_open_kernel();
+	while (count--)
+		*dst++ = *src++;
+	pax_close_kernel();
 }
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+extern void __clone_user_pgds(pgd_t *dst, const pgd_t *src);
+#endif
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src);
+#else
+static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) {}
+#endif
+
 #define PTE_SHIFT ilog2(PTRS_PER_PTE)
 static inline int page_level_shift(enum pg_level level)
 {
diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
index 9ee3221..b979c6b 100644
--- a/arch/x86/include/asm/pgtable_32.h
+++ b/arch/x86/include/asm/pgtable_32.h
@@ -25,9 +25,6 @@
 struct mm_struct;
 struct vm_area_struct;
 
-extern pgd_t swapper_pg_dir[1024];
-extern pgd_t initial_page_table[1024];
-
 static inline void pgtable_cache_init(void) { }
 static inline void check_pgt_cache(void) { }
 void paging_init(void);
@@ -48,6 +45,12 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
 # include <asm/pgtable-2level.h>
 #endif
 
+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
+extern pgd_t initial_page_table[PTRS_PER_PGD];
+#ifdef CONFIG_X86_PAE
+extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD];
+#endif
+
 #if defined(CONFIG_HIGHPTE)
 #define pte_offset_map(dir, address)					\
 	((pte_t *)kmap_atomic(pmd_page(*(dir))) +		\
@@ -62,12 +65,17 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
 /* Clear a kernel PTE and flush it from the TLB */
 #define kpte_clear_flush(ptep, vaddr)		\
 do {						\
+	pax_open_kernel();			\
 	pte_clear(&init_mm, (vaddr), (ptep));	\
+	pax_close_kernel();			\
 	__flush_tlb_one((vaddr));		\
 } while (0)
 
 #endif /* !__ASSEMBLY__ */
 
+#define HAVE_ARCH_UNMAPPED_AREA
+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
+
 /*
  * kern_addr_valid() is (1) for FLATMEM and (0) for
  * SPARSEMEM and DISCONTIGMEM
diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
index ed5903b..c7fe163 100644
--- a/arch/x86/include/asm/pgtable_32_types.h
+++ b/arch/x86/include/asm/pgtable_32_types.h
@@ -8,7 +8,7 @@
  */
 #ifdef CONFIG_X86_PAE
 # include <asm/pgtable-3level_types.h>
-# define PMD_SIZE	(1UL << PMD_SHIFT)
+# define PMD_SIZE	(_AC(1, UL) << PMD_SHIFT)
 # define PMD_MASK	(~(PMD_SIZE - 1))
 #else
 # include <asm/pgtable-2level_types.h>
@@ -46,6 +46,19 @@ extern bool __vmalloc_start_set; /* set once high_memory is set */
 # define VMALLOC_END	(FIXADDR_START - 2 * PAGE_SIZE)
 #endif
 
+#ifdef CONFIG_PAX_KERNEXEC
+#ifndef __ASSEMBLY__
+extern unsigned char MODULES_EXEC_VADDR[];
+extern unsigned char MODULES_EXEC_END[];
+#endif
+#include <asm/boot.h>
+#define ktla_ktva(addr)		(addr + LOAD_PHYSICAL_ADDR + PAGE_OFFSET)
+#define ktva_ktla(addr)		(addr - LOAD_PHYSICAL_ADDR - PAGE_OFFSET)
+#else
+#define ktla_ktva(addr)		(addr)
+#define ktva_ktla(addr)		(addr)
+#endif
+
 #define MODULES_VADDR	VMALLOC_START
 #define MODULES_END	VMALLOC_END
 #define MODULES_LEN	(MODULES_VADDR - MODULES_END)
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index e22c1db..23a625a 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -16,10 +16,14 @@
 
 extern pud_t level3_kernel_pgt[512];
 extern pud_t level3_ident_pgt[512];
+extern pud_t level3_vmalloc_start_pgt[512];
+extern pud_t level3_vmalloc_end_pgt[512];
+extern pud_t level3_vmemmap_pgt[512];
+extern pud_t level2_vmemmap_pgt[512];
 extern pmd_t level2_kernel_pgt[512];
 extern pmd_t level2_fixmap_pgt[512];
-extern pmd_t level2_ident_pgt[512];
-extern pgd_t init_level4_pgt[];
+extern pmd_t level2_ident_pgt[512*2];
+extern pgd_t init_level4_pgt[512];
 
 #define swapper_pg_dir init_level4_pgt
 
@@ -61,7 +65,9 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
 
 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
 {
+	pax_open_kernel();
 	*pmdp = pmd;
+	pax_close_kernel();
 }
 
 static inline void native_pmd_clear(pmd_t *pmd)
@@ -97,7 +103,9 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
 
 static inline void native_set_pud(pud_t *pudp, pud_t pud)
 {
+	pax_open_kernel();
 	*pudp = pud;
+	pax_close_kernel();
 }
 
 static inline void native_pud_clear(pud_t *pud)
@@ -107,6 +115,13 @@ static inline void native_pud_clear(pud_t *pud)
 
 static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
 {
+	pax_open_kernel();
+	*pgdp = pgd;
+	pax_close_kernel();
+}
+
+static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
+{
 	*pgdp = pgd;
 }
 
diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
index 2d88344..4679fc3 100644
--- a/arch/x86/include/asm/pgtable_64_types.h
+++ b/arch/x86/include/asm/pgtable_64_types.h
@@ -61,6 +61,11 @@ typedef struct { pteval_t pte; } pte_t;
 #define MODULES_VADDR    _AC(0xffffffffa0000000, UL)
 #define MODULES_END      _AC(0xffffffffff000000, UL)
 #define MODULES_LEN   (MODULES_END - MODULES_VADDR)
+#define MODULES_EXEC_VADDR MODULES_VADDR
+#define MODULES_EXEC_END MODULES_END
+
+#define ktla_ktva(addr)		(addr)
+#define ktva_ktla(addr)		(addr)
 
 #define EARLY_DYNAMIC_PAGE_TABLES	64
 
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index 567b5d0..bd91d64 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -16,13 +16,12 @@
 #define _PAGE_BIT_PSE		7	/* 4 MB (or 2MB) page */
 #define _PAGE_BIT_PAT		7	/* on 4KB pages */
 #define _PAGE_BIT_GLOBAL	8	/* Global TLB entry PPro+ */
-#define _PAGE_BIT_UNUSED1	9	/* available for programmer */
+#define _PAGE_BIT_SPECIAL	9	/* special mappings, no associated struct page */
 #define _PAGE_BIT_IOMAP		10	/* flag used to indicate IO mapping */
 #define _PAGE_BIT_HIDDEN	11	/* hidden by kmemcheck */
 #define _PAGE_BIT_PAT_LARGE	12	/* On 2MB or 1GB pages */
-#define _PAGE_BIT_SPECIAL	_PAGE_BIT_UNUSED1
-#define _PAGE_BIT_CPA_TEST	_PAGE_BIT_UNUSED1
-#define _PAGE_BIT_SPLITTING	_PAGE_BIT_UNUSED1 /* only valid on a PSE pmd */
+#define _PAGE_BIT_CPA_TEST	_PAGE_BIT_SPECIAL
+#define _PAGE_BIT_SPLITTING	_PAGE_BIT_SPECIAL /* only valid on a PSE pmd */
 #define _PAGE_BIT_NX           63       /* No execute: only valid after cpuid check */
 
 /* If _PAGE_BIT_PRESENT is clear, we use these: */
@@ -40,7 +39,6 @@
 #define _PAGE_DIRTY	(_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
 #define _PAGE_PSE	(_AT(pteval_t, 1) << _PAGE_BIT_PSE)
 #define _PAGE_GLOBAL	(_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
-#define _PAGE_UNUSED1	(_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
 #define _PAGE_IOMAP	(_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
 #define _PAGE_PAT	(_AT(pteval_t, 1) << _PAGE_BIT_PAT)
 #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
@@ -57,8 +55,10 @@
 
 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
 #define _PAGE_NX	(_AT(pteval_t, 1) << _PAGE_BIT_NX)
-#else
+#elif defined(CONFIG_KMEMCHECK)
 #define _PAGE_NX	(_AT(pteval_t, 0))
+#else
+#define _PAGE_NX	(_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN)
 #endif
 
 #define _PAGE_FILE	(_AT(pteval_t, 1) << _PAGE_BIT_FILE)
@@ -116,6 +116,9 @@
 #define PAGE_READONLY_EXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER |	\
 					 _PAGE_ACCESSED)
 
+#define PAGE_READONLY_NOEXEC PAGE_READONLY
+#define PAGE_SHARED_NOEXEC PAGE_SHARED
+
 #define __PAGE_KERNEL_EXEC						\
 	(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
 #define __PAGE_KERNEL		(__PAGE_KERNEL_EXEC | _PAGE_NX)
@@ -126,7 +129,7 @@
 #define __PAGE_KERNEL_WC		(__PAGE_KERNEL | _PAGE_CACHE_WC)
 #define __PAGE_KERNEL_NOCACHE		(__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
 #define __PAGE_KERNEL_UC_MINUS		(__PAGE_KERNEL | _PAGE_PCD)
-#define __PAGE_KERNEL_VSYSCALL		(__PAGE_KERNEL_RX | _PAGE_USER)
+#define __PAGE_KERNEL_VSYSCALL		(__PAGE_KERNEL_RO | _PAGE_USER)
 #define __PAGE_KERNEL_VVAR		(__PAGE_KERNEL_RO | _PAGE_USER)
 #define __PAGE_KERNEL_VVAR_NOCACHE	(__PAGE_KERNEL_VVAR | _PAGE_PCD | _PAGE_PWT)
 #define __PAGE_KERNEL_LARGE		(__PAGE_KERNEL | _PAGE_PSE)
@@ -188,8 +191,8 @@
  * bits are combined, this will alow user to access the high address mapped
  * VDSO in the presence of CONFIG_COMPAT_VDSO
  */
-#define PTE_IDENT_ATTR	 0x003		/* PRESENT+RW */
-#define PDE_IDENT_ATTR	 0x067		/* PRESENT+RW+USER+DIRTY+ACCESSED */
+#define PTE_IDENT_ATTR	 0x063		/* PRESENT+RW+DIRTY+ACCESSED */
+#define PDE_IDENT_ATTR	 0x063		/* PRESENT+RW+DIRTY+ACCESSED */
 #define PGD_IDENT_ATTR	 0x001		/* PRESENT (no other attributes) */
 #endif
 
@@ -227,7 +230,17 @@ static inline pgdval_t pgd_flags(pgd_t pgd)
 {
 	return native_pgd_val(pgd) & PTE_FLAGS_MASK;
 }
+#endif
 
+#if PAGETABLE_LEVELS == 3
+#include <asm-generic/pgtable-nopud.h>
+#endif
+
+#if PAGETABLE_LEVELS == 2
+#include <asm-generic/pgtable-nopmd.h>
+#endif
+
+#ifndef __ASSEMBLY__
 #if PAGETABLE_LEVELS > 3
 typedef struct { pudval_t pud; } pud_t;
 
@@ -241,8 +254,6 @@ static inline pudval_t native_pud_val(pud_t pud)
 	return pud.pud;
 }
 #else
-#include <asm-generic/pgtable-nopud.h>
-
 static inline pudval_t native_pud_val(pud_t pud)
 {
 	return native_pgd_val(pud.pgd);
@@ -262,8 +273,6 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
 	return pmd.pmd;
 }
 #else
-#include <asm-generic/pgtable-nopmd.h>
-
 static inline pmdval_t native_pmd_val(pmd_t pmd)
 {
 	return native_pgd_val(pmd.pud.pgd);
@@ -303,7 +312,6 @@ typedef struct page *pgtable_t;
 
 extern pteval_t __supported_pte_mask;
 extern void set_nx(void);
-extern int nx_enabled;
 
 #define pgprot_writecombine	pgprot_writecombine
 extern pgprot_t pgprot_writecombine(pgprot_t prot);
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 3270116..8d99d82 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -285,7 +285,7 @@ struct tss_struct {
 
 } ____cacheline_aligned;
 
-DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss);
+extern struct tss_struct init_tss[NR_CPUS];
 
 /*
  * Save the original ist values for checking stack pointers during debugging
@@ -826,11 +826,18 @@ static inline void spin_lock_prefetch(const void *x)
  */
 #define TASK_SIZE		PAGE_OFFSET
 #define TASK_SIZE_MAX		TASK_SIZE
+
+#ifdef CONFIG_PAX_SEGMEXEC
+#define SEGMEXEC_TASK_SIZE	(TASK_SIZE / 2)
+#define STACK_TOP		((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE)
+#else
 #define STACK_TOP		TASK_SIZE
-#define STACK_TOP_MAX		STACK_TOP
+#endif
+
+#define STACK_TOP_MAX		TASK_SIZE
 
 #define INIT_THREAD  {							  \
-	.sp0			= sizeof(init_stack) + (long)&init_stack, \
+	.sp0			= sizeof(init_stack) + (long)&init_stack - 8, \
 	.vm86_info		= NULL,					  \
 	.sysenter_cs		= __KERNEL_CS,				  \
 	.io_bitmap_ptr		= NULL,					  \
@@ -844,7 +851,7 @@ static inline void spin_lock_prefetch(const void *x)
  */
 #define INIT_TSS  {							  \
 	.x86_tss = {							  \
-		.sp0		= sizeof(init_stack) + (long)&init_stack, \
+		.sp0		= sizeof(init_stack) + (long)&init_stack - 8, \
 		.ss0		= __KERNEL_DS,				  \
 		.ss1		= __KERNEL_CS,				  \
 		.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,		  \
@@ -855,11 +862,7 @@ static inline void spin_lock_prefetch(const void *x)
 extern unsigned long thread_saved_pc(struct task_struct *tsk);
 
 #define THREAD_SIZE_LONGS      (THREAD_SIZE/sizeof(unsigned long))
-#define KSTK_TOP(info)                                                 \
-({                                                                     \
-       unsigned long *__ptr = (unsigned long *)(info);                 \
-       (unsigned long)(&__ptr[THREAD_SIZE_LONGS]);                     \
-})
+#define KSTK_TOP(info)         ((container_of(info, struct task_struct, tinfo))->thread.sp0)
 
 /*
  * The below -8 is to reserve 8 bytes on top of the ring0 stack.
@@ -874,7 +877,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
 #define task_pt_regs(task)                                             \
 ({                                                                     \
        struct pt_regs *__regs__;                                       \
-       __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
+       __regs__ = (struct pt_regs *)((task)->thread.sp0);              \
        __regs__ - 1;                                                   \
 })
 
@@ -884,13 +887,13 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
 /*
  * User space process size. 47bits minus one guard page.
  */
-#define TASK_SIZE_MAX	((1UL << 47) - PAGE_SIZE)
+#define TASK_SIZE_MAX	((1UL << TASK_SIZE_MAX_SHIFT) - PAGE_SIZE)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
  */
 #define IA32_PAGE_OFFSET	((current->personality & ADDR_LIMIT_3GB) ? \
-					0xc0000000 : 0xFFFFe000)
+					0xc0000000 : 0xFFFFf000)
 
 #define TASK_SIZE		(test_thread_flag(TIF_ADDR32) ? \
 					IA32_PAGE_OFFSET : TASK_SIZE_MAX)
@@ -901,11 +904,11 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
 #define STACK_TOP_MAX		TASK_SIZE_MAX
 
 #define INIT_THREAD  { \
-	.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
+	.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
 }
 
 #define INIT_TSS  { \
-	.x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
+	.x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
 }
 
 /*
@@ -933,6 +936,10 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
  */
 #define TASK_UNMAPPED_BASE	(PAGE_ALIGN(TASK_SIZE / 3))
 
+#ifdef CONFIG_PAX_SEGMEXEC
+#define SEGMEXEC_TASK_UNMAPPED_BASE	(PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3))
+#endif
+
 #define KSTK_EIP(task)		(task_pt_regs(task)->ip)
 
 /* Get/set a process' ability to use the timestamp counter instruction */
@@ -993,7 +1000,7 @@ extern bool cpu_has_amd_erratum(const int *);
 #define cpu_has_amd_erratum(x)	(false)
 #endif /* CONFIG_CPU_SUP_AMD */
 
-extern unsigned long arch_align_stack(unsigned long sp);
+#define arch_align_stack(x) ((x) & ~0xfUL)
 extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
 
 void default_idle(void);
@@ -1003,6 +1010,6 @@ bool xen_set_default_idle(void);
 #define xen_set_default_idle 0
 #endif
 
-void stop_this_cpu(void *dummy);
+void stop_this_cpu(void *dummy) __noreturn;
 
 #endif /* _ASM_X86_PROCESSOR_H */
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 942a086..6c26446 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -85,28 +85,29 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)
 }
 
 /*
- * user_mode_vm(regs) determines whether a register set came from user mode.
+ * user_mode(regs) determines whether a register set came from user mode.
  * This is true if V8086 mode was enabled OR if the register set was from
  * protected mode with RPL-3 CS value.  This tricky test checks that with
  * one comparison.  Many places in the kernel can bypass this full check
- * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
+ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can
+ * be used.
  */
-static inline int user_mode(struct pt_regs *regs)
+static inline int user_mode_novm(struct pt_regs *regs)
 {
 #ifdef CONFIG_X86_32
 	return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
 #else
-	return !!(regs->cs & 3);
+	return !!(regs->cs & SEGMENT_RPL_MASK);
 #endif
 }
 
-static inline int user_mode_vm(struct pt_regs *regs)
+static inline int user_mode(struct pt_regs *regs)
 {
 #ifdef CONFIG_X86_32
 	return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
 		USER_RPL;
 #else
-	return user_mode(regs);
+	return user_mode_novm(regs);
 #endif
 }
 
@@ -122,15 +123,16 @@ static inline int v8086_mode(struct pt_regs *regs)
 #ifdef CONFIG_X86_64
 static inline bool user_64bit_mode(struct pt_regs *regs)
 {
+	unsigned long cs = regs->cs & 0xffff;
 #ifndef CONFIG_PARAVIRT
 	/*
 	 * On non-paravirt systems, this is the only long mode CPL 3
 	 * selector.  We do not allow long mode selectors in the LDT.
 	 */
-	return regs->cs == __USER_CS;
+	return cs == __USER_CS;
 #else
 	/* Headers are too twisted for this to go in paravirt.h. */
-	return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs;
+	return cs == __USER_CS || cs == pv_info.extra_user_64bit_cs;
 #endif
 }
 
@@ -181,9 +183,11 @@ static inline unsigned long regs_get_register(struct pt_regs *regs,
 	 * Traps from the kernel do not save sp and ss.
 	 * Use the helper function to retrieve sp.
 	 */
-	if (offset == offsetof(struct pt_regs, sp) &&
-	    regs->cs == __KERNEL_CS)
-		return kernel_stack_pointer(regs);
+	if (offset == offsetof(struct pt_regs, sp)) {
+		unsigned long cs = regs->cs & 0xffff;
+	 	if (cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS)
+			return kernel_stack_pointer(regs);
+	}
 #endif
 	return *(unsigned long *)((unsigned long)regs + offset);
 }
diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
index 9c6b890..5305f53 100644
--- a/arch/x86/include/asm/realmode.h
+++ b/arch/x86/include/asm/realmode.h
@@ -22,16 +22,14 @@ struct real_mode_header {
 #endif
 	/* APM/BIOS reboot */
 	u32	machine_real_restart_asm;
-#ifdef CONFIG_X86_64
 	u32	machine_real_restart_seg;
-#endif
 };
 
 /* This must match data at trampoline_32/64.S */
 struct trampoline_header {
 #ifdef CONFIG_X86_32
 	u32 start;
-	u16 gdt_pad;
+	u16 boot_cs;
 	u16 gdt_limit;
 	u32 gdt_base;
 #else
diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
index a82c4f1..ac45053 100644
--- a/arch/x86/include/asm/reboot.h
+++ b/arch/x86/include/asm/reboot.h
@@ -6,13 +6,13 @@
 struct pt_regs;
 
 struct machine_ops {
-	void (*restart)(char *cmd);
-	void (*halt)(void);
-	void (*power_off)(void);
+	void (* __noreturn restart)(char *cmd);
+	void (* __noreturn halt)(void);
+	void (* __noreturn power_off)(void);
 	void (*shutdown)(void);
 	void (*crash_shutdown)(struct pt_regs *);
-	void (*emergency_restart)(void);
-};
+	void (* __noreturn emergency_restart)(void);
+} __no_const;
 
 extern struct machine_ops machine_ops;
 
diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
index 2dbe4a7..ce1db00 100644
--- a/arch/x86/include/asm/rwsem.h
+++ b/arch/x86/include/asm/rwsem.h
@@ -64,6 +64,14 @@ static inline void __down_read(struct rw_semaphore *sem)
 {
 	asm volatile("# beginning down_read\n\t"
 		     LOCK_PREFIX _ASM_INC "(%1)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX _ASM_DEC "(%1)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     /* adds 0x00000001 */
 		     "  jns        1f\n"
 		     "  call call_rwsem_down_read_failed\n"
@@ -85,6 +93,14 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 		     "1:\n\t"
 		     "  mov          %1,%2\n\t"
 		     "  add          %3,%2\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     "sub %3,%2\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     "  jle	     2f\n\t"
 		     LOCK_PREFIX "  cmpxchg  %2,%0\n\t"
 		     "  jnz	     1b\n\t"
@@ -104,6 +120,14 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
 	long tmp;
 	asm volatile("# beginning down_write\n\t"
 		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     "mov %1,(%2)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     /* adds 0xffff0001, returns the old value */
 		     "  test      %1,%1\n\t"
 		     /* was the count 0 before? */
@@ -141,6 +165,14 @@ static inline void __up_read(struct rw_semaphore *sem)
 	long tmp;
 	asm volatile("# beginning __up_read\n\t"
 		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     "mov %1,(%2)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     /* subtracts 1, returns the old value */
 		     "  jns        1f\n\t"
 		     "  call call_rwsem_wake\n" /* expects old value in %edx */
@@ -159,6 +191,14 @@ static inline void __up_write(struct rw_semaphore *sem)
 	long tmp;
 	asm volatile("# beginning __up_write\n\t"
 		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     "mov %1,(%2)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     /* subtracts 0xffff0001, returns the old value */
 		     "  jns        1f\n\t"
 		     "  call call_rwsem_wake\n" /* expects old value in %edx */
@@ -176,6 +216,14 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 {
 	asm volatile("# beginning __downgrade_write\n\t"
 		     LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX _ASM_SUB "%2,(%1)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     /*
 		      * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386)
 		      *     0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64)
@@ -194,7 +242,15 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
  */
 static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
 {
-	asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0"
+	asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX _ASM_SUB "%1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     : "+m" (sem->count)
 		     : "er" (delta));
 }
@@ -204,7 +260,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
  */
 static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
 {
-	return delta + xadd(&sem->count, delta);
+	return delta + xadd_check_overflow(&sem->count, delta);
 }
 
 #endif /* __KERNEL__ */
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
index c48a950..c6d7468 100644
--- a/arch/x86/include/asm/segment.h
+++ b/arch/x86/include/asm/segment.h
@@ -64,10 +64,15 @@
  *  26 - ESPFIX small SS
  *  27 - per-cpu			[ offset to per-cpu data area ]
  *  28 - stack_canary-20		[ for stack protector ]
- *  29 - unused
- *  30 - unused
+ *  29 - PCI BIOS CS
+ *  30 - PCI BIOS DS
  *  31 - TSS for double fault handler
  */
+#define GDT_ENTRY_KERNEXEC_EFI_CS	(1)
+#define GDT_ENTRY_KERNEXEC_EFI_DS	(2)
+#define __KERNEXEC_EFI_CS	(GDT_ENTRY_KERNEXEC_EFI_CS*8)
+#define __KERNEXEC_EFI_DS	(GDT_ENTRY_KERNEXEC_EFI_DS*8)
+
 #define GDT_ENTRY_TLS_MIN	6
 #define GDT_ENTRY_TLS_MAX 	(GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
 
@@ -79,6 +84,8 @@
 
 #define GDT_ENTRY_KERNEL_CS		(GDT_ENTRY_KERNEL_BASE+0)
 
+#define GDT_ENTRY_KERNEXEC_KERNEL_CS	(4)
+
 #define GDT_ENTRY_KERNEL_DS		(GDT_ENTRY_KERNEL_BASE+1)
 
 #define GDT_ENTRY_TSS			(GDT_ENTRY_KERNEL_BASE+4)
@@ -104,6 +111,12 @@
 #define __KERNEL_STACK_CANARY		0
 #endif
 
+#define GDT_ENTRY_PCIBIOS_CS		(GDT_ENTRY_KERNEL_BASE+17)
+#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8)
+
+#define GDT_ENTRY_PCIBIOS_DS		(GDT_ENTRY_KERNEL_BASE+18)
+#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8)
+
 #define GDT_ENTRY_DOUBLEFAULT_TSS	31
 
 /*
@@ -141,7 +154,7 @@
  */
 
 /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
-#define SEGMENT_IS_PNP_CODE(x)   (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
+#define SEGMENT_IS_PNP_CODE(x)   (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16)
 
 
 #else
@@ -165,6 +178,8 @@
 #define __USER32_CS   (GDT_ENTRY_DEFAULT_USER32_CS*8+3)
 #define __USER32_DS	__USER_DS
 
+#define GDT_ENTRY_KERNEXEC_KERNEL_CS 7
+
 #define GDT_ENTRY_TSS 8	/* needs two entries */
 #define GDT_ENTRY_LDT 10 /* needs two entries */
 #define GDT_ENTRY_TLS_MIN 12
@@ -185,6 +200,7 @@
 #endif
 
 #define __KERNEL_CS	(GDT_ENTRY_KERNEL_CS*8)
+#define __KERNEXEC_KERNEL_CS	(GDT_ENTRY_KERNEXEC_KERNEL_CS*8)
 #define __KERNEL_DS	(GDT_ENTRY_KERNEL_DS*8)
 #define __USER_DS	(GDT_ENTRY_DEFAULT_USER_DS*8+3)
 #define __USER_CS	(GDT_ENTRY_DEFAULT_USER_CS*8+3)
@@ -265,7 +281,7 @@ static inline unsigned long get_limit(unsigned long segment)
 {
 	unsigned long __limit;
 	asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
-	return __limit + 1;
+	return __limit;
 }
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index b073aae..39f9bdd 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -36,7 +36,7 @@ DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_core_map);
 /* cpus sharing the last level cache: */
 DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_llc_shared_map);
 DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_llc_id);
-DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number);
+DECLARE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
 
 static inline struct cpumask *cpu_sibling_mask(int cpu)
 {
@@ -79,7 +79,7 @@ struct smp_ops {
 
 	void (*send_call_func_ipi)(const struct cpumask *mask);
 	void (*send_call_func_single_ipi)(int cpu);
-};
+} __no_const;
 
 /* Globals due to paravirt */
 extern void set_cpu_sibling_map(int cpu);
@@ -191,14 +191,8 @@ extern unsigned disabled_cpus __cpuinitdata;
 extern int safe_smp_processor_id(void);
 
 #elif defined(CONFIG_X86_64_SMP)
-#define raw_smp_processor_id() (this_cpu_read(cpu_number))
-
-#define stack_smp_processor_id()					\
-({								\
-	struct thread_info *ti;						\
-	__asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK));	\
-	ti->cpu;							\
-})
+#define raw_smp_processor_id()		(this_cpu_read(cpu_number))
+#define stack_smp_processor_id()	raw_smp_processor_id()
 #define safe_smp_processor_id()		smp_processor_id()
 
 #endif
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 33692ea..350a534 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -172,6 +172,14 @@ static inline int arch_write_can_lock(arch_rwlock_t *lock)
 static inline void arch_read_lock(arch_rwlock_t *rw)
 {
 	asm volatile(LOCK_PREFIX READ_LOCK_SIZE(dec) " (%0)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX READ_LOCK_SIZE(inc) " (%0)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     "jns 1f\n"
 		     "call __read_lock_failed\n\t"
 		     "1:\n"
@@ -181,6 +189,14 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
 static inline void arch_write_lock(arch_rwlock_t *rw)
 {
 	asm volatile(LOCK_PREFIX WRITE_LOCK_SUB(%1) "(%0)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX WRITE_LOCK_ADD(%1) "(%0)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     "jz 1f\n"
 		     "call __write_lock_failed\n\t"
 		     "1:\n"
@@ -210,13 +226,29 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
 
 static inline void arch_read_unlock(arch_rwlock_t *rw)
 {
-	asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0"
+	asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX READ_LOCK_SIZE(dec) " %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     :"+m" (rw->lock) : : "memory");
 }
 
 static inline void arch_write_unlock(arch_rwlock_t *rw)
 {
-	asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0"
+	asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX WRITE_LOCK_SUB(%1) "%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     : "+m" (rw->write) : "i" (RW_LOCK_BIAS) : "memory");
 }
 
diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index 6a99859..03cb807 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -47,7 +47,7 @@
  * head_32 for boot CPU and setup_per_cpu_areas() for others.
  */
 #define GDT_STACK_CANARY_INIT						\
-	[GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18),
+	[GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x17),
 
 /*
  * Initialize the stackprotector canary value.
@@ -112,7 +112,7 @@ static inline void setup_stack_canary_segment(int cpu)
 
 static inline void load_stack_canary_segment(void)
 {
-#ifdef CONFIG_X86_32
+#if defined(CONFIG_X86_32) && !defined(CONFIG_PAX_MEMORY_UDEREF)
 	asm volatile ("mov %0, %%gs" : : "r" (0));
 #endif
 }
diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
index 70bbe39..4ae2bd4 100644
--- a/arch/x86/include/asm/stacktrace.h
+++ b/arch/x86/include/asm/stacktrace.h
@@ -11,28 +11,20 @@
 
 extern int kstack_depth_to_print;
 
-struct thread_info;
+struct task_struct;
 struct stacktrace_ops;
 
-typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo,
-				      unsigned long *stack,
-				      unsigned long bp,
-				      const struct stacktrace_ops *ops,
-				      void *data,
-				      unsigned long *end,
-				      int *graph);
+typedef unsigned long walk_stack_t(struct task_struct *task,
+				   void *stack_start,
+				   unsigned long *stack,
+				   unsigned long bp,
+				   const struct stacktrace_ops *ops,
+				   void *data,
+				   unsigned long *end,
+				   int *graph);
 
-extern unsigned long
-print_context_stack(struct thread_info *tinfo,
-		    unsigned long *stack, unsigned long bp,
-		    const struct stacktrace_ops *ops, void *data,
-		    unsigned long *end, int *graph);
-
-extern unsigned long
-print_context_stack_bp(struct thread_info *tinfo,
-		       unsigned long *stack, unsigned long bp,
-		       const struct stacktrace_ops *ops, void *data,
-		       unsigned long *end, int *graph);
+extern walk_stack_t print_context_stack;
+extern walk_stack_t print_context_stack_bp;
 
 /* Generic stack tracer with callbacks */
 
@@ -40,7 +32,7 @@ struct stacktrace_ops {
 	void (*address)(void *data, unsigned long address, int reliable);
 	/* On negative return stop dumping */
 	int (*stack)(void *data, char *name);
-	walk_stack_t	walk_stack;
+	walk_stack_t	*walk_stack;
 };
 
 void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
index 4ec45b3..a4f0a8a 100644
--- a/arch/x86/include/asm/switch_to.h
+++ b/arch/x86/include/asm/switch_to.h
@@ -108,7 +108,7 @@ do {									\
 	     "call __switch_to\n\t"					  \
 	     "movq "__percpu_arg([current_task])",%%rsi\n\t"		  \
 	     __switch_canary						  \
-	     "movq %P[thread_info](%%rsi),%%r8\n\t"			  \
+	     "movq "__percpu_arg([thread_info])",%%r8\n\t"		  \
 	     "movq %%rax,%%rdi\n\t" 					  \
 	     "testl  %[_tif_fork],%P[ti_flags](%%r8)\n\t"		  \
 	     "jnz   ret_from_fork\n\t"					  \
@@ -119,7 +119,7 @@ do {									\
 	       [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \
 	       [ti_flags] "i" (offsetof(struct thread_info, flags)),	  \
 	       [_tif_fork] "i" (_TIF_FORK),			  	  \
-	       [thread_info] "i" (offsetof(struct task_struct, stack)),   \
+	       [thread_info] "m" (current_tinfo),			  \
 	       [current_task] "m" (current_task)			  \
 	       __switch_canary_iparam					  \
 	     : "memory", "cc" __EXTRA_CLOBBER)
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index 2cd056e..0224df8 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -10,6 +10,7 @@
 #include <linux/compiler.h>
 #include <asm/page.h>
 #include <asm/types.h>
+#include <asm/percpu.h>
 
 /*
  * low level task data that entry.S needs immediate access to
@@ -23,7 +24,6 @@ struct exec_domain;
 #include <linux/atomic.h>
 
 struct thread_info {
-	struct task_struct	*task;		/* main task structure */
 	struct exec_domain	*exec_domain;	/* execution domain */
 	__u32			flags;		/* low level flags */
 	__u32			status;		/* thread synchronous flags */
@@ -33,19 +33,13 @@ struct thread_info {
 	mm_segment_t		addr_limit;
 	struct restart_block    restart_block;
 	void __user		*sysenter_return;
-#ifdef CONFIG_X86_32
-	unsigned long           previous_esp;   /* ESP of the previous stack in
-						   case of nested (IRQ) stacks
-						*/
-	__u8			supervisor_stack[0];
-#endif
+	unsigned long		lowest_stack;
 	unsigned int		sig_on_uaccess_error:1;
 	unsigned int		uaccess_err:1;	/* uaccess failed */
 };
 
-#define INIT_THREAD_INFO(tsk)			\
+#define INIT_THREAD_INFO			\
 {						\
-	.task		= &tsk,			\
 	.exec_domain	= &default_exec_domain,	\
 	.flags		= 0,			\
 	.cpu		= 0,			\
@@ -56,7 +50,7 @@ struct thread_info {
 	},					\
 }
 
-#define init_thread_info	(init_thread_union.thread_info)
+#define init_thread_info	(init_thread_union.stack)
 #define init_stack		(init_thread_union.stack)
 
 #else /* !__ASSEMBLY__ */
@@ -97,6 +91,7 @@ struct thread_info {
 #define TIF_SYSCALL_TRACEPOINT	28	/* syscall tracepoint instrumentation */
 #define TIF_ADDR32		29	/* 32-bit address space on 64 bits */
 #define TIF_X32			30	/* 32-bit native x86-64 binary */
+#define TIF_GRSEC_SETXID	31	/* update credentials on syscall entry/exit */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
@@ -121,17 +116,18 @@ struct thread_info {
 #define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
 #define _TIF_ADDR32		(1 << TIF_ADDR32)
 #define _TIF_X32		(1 << TIF_X32)
+#define _TIF_GRSEC_SETXID	(1 << TIF_GRSEC_SETXID)
 
 /* work to do in syscall_trace_enter() */
 #define _TIF_WORK_SYSCALL_ENTRY	\
 	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT |	\
 	 _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT |	\
-	 _TIF_NOHZ)
+	 _TIF_NOHZ | _TIF_GRSEC_SETXID)
 
 /* work to do in syscall_trace_leave() */
 #define _TIF_WORK_SYSCALL_EXIT	\
 	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP |	\
-	 _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ)
+	 _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ | _TIF_GRSEC_SETXID)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK							\
@@ -142,7 +138,7 @@ struct thread_info {
 /* work to do on any return to user space */
 #define _TIF_ALLWORK_MASK						\
 	((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT |	\
-	_TIF_NOHZ)
+	_TIF_NOHZ | _TIF_GRSEC_SETXID)
 
 /* Only used for 64 bit */
 #define _TIF_DO_NOTIFY_MASK						\
@@ -158,45 +154,40 @@ struct thread_info {
 
 #define PREEMPT_ACTIVE		0x10000000
 
-#ifdef CONFIG_X86_32
-
-#define STACK_WARN	(THREAD_SIZE/8)
-/*
- * macros/functions for gaining access to the thread information structure
- *
- * preempt_count needs to be 1 initially, until the scheduler is functional.
- */
-#ifndef __ASSEMBLY__
-
-
-/* how to get the current stack pointer from C */
-register unsigned long current_stack_pointer asm("esp") __used;
-
-/* how to get the thread information struct from C */
-static inline struct thread_info *current_thread_info(void)
-{
-	return (struct thread_info *)
-		(current_stack_pointer & ~(THREAD_SIZE - 1));
-}
-
-#else /* !__ASSEMBLY__ */
-
+#ifdef __ASSEMBLY__
 /* how to get the thread information struct from ASM */
 #define GET_THREAD_INFO(reg)	 \
-	movl $-THREAD_SIZE, reg; \
-	andl %esp, reg
+	mov PER_CPU_VAR(current_tinfo), reg
 
 /* use this one if reg already contains %esp */
-#define GET_THREAD_INFO_WITH_ESP(reg) \
-	andl $-THREAD_SIZE, reg
+#define GET_THREAD_INFO_WITH_ESP(reg) GET_THREAD_INFO(reg)
+#else
+/* how to get the thread information struct from C */
+DECLARE_PER_CPU(struct thread_info *, current_tinfo);
+
+static __always_inline struct thread_info *current_thread_info(void)
+{
+	return this_cpu_read_stable(current_tinfo);
+}
+#endif
+
+#ifdef CONFIG_X86_32
+
+#define STACK_WARN	(THREAD_SIZE/8)
+/*
+ * macros/functions for gaining access to the thread information structure
+ *
+ * preempt_count needs to be 1 initially, until the scheduler is functional.
+ */
+#ifndef __ASSEMBLY__
+
+/* how to get the current stack pointer from C */
+register unsigned long current_stack_pointer asm("esp") __used;
 
 #endif
 
 #else /* X86_32 */
 
-#include <asm/percpu.h>
-#define KERNEL_STACK_OFFSET (5*8)
-
 /*
  * macros/functions for gaining access to the thread information structure
  * preempt_count needs to be 1 initially, until the scheduler is functional.
@@ -204,27 +195,8 @@ static inline struct thread_info *current_thread_info(void)
 #ifndef __ASSEMBLY__
 DECLARE_PER_CPU(unsigned long, kernel_stack);
 
-static inline struct thread_info *current_thread_info(void)
-{
-	struct thread_info *ti;
-	ti = (void *)(this_cpu_read_stable(kernel_stack) +
-		      KERNEL_STACK_OFFSET - THREAD_SIZE);
-	return ti;
-}
-
-#else /* !__ASSEMBLY__ */
-
-/* how to get the thread information struct from ASM */
-#define GET_THREAD_INFO(reg) \
-	movq PER_CPU_VAR(kernel_stack),reg ; \
-	subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg
-
-/*
- * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
- * a certain register (to be used in assembler memory operands).
- */
-#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg)
-
+/* how to get the current stack pointer from C */
+register unsigned long current_stack_pointer asm("rsp") __used;
 #endif
 
 #endif /* !X86_32 */
@@ -285,5 +257,12 @@ static inline bool is_ia32_task(void)
 extern void arch_task_cache_init(void);
 extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
 extern void arch_release_task_struct(struct task_struct *tsk);
+
+#define __HAVE_THREAD_FUNCTIONS
+#define task_thread_info(task)	(&(task)->tinfo)
+#define task_stack_page(task)	((task)->stack)
+#define setup_thread_stack(p, org) do {} while (0)
+#define end_of_stack(p) ((unsigned long *)task_stack_page(p) + 1)
+
 #endif
 #endif /* _ASM_X86_THREAD_INFO_H */
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 5ee2687..70d5895 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -7,6 +7,7 @@
 #include <linux/compiler.h>
 #include <linux/thread_info.h>
 #include <linux/string.h>
+#include <linux/sched.h>
 #include <asm/asm.h>
 #include <asm/page.h>
 #include <asm/smap.h>
@@ -29,7 +30,12 @@
 
 #define get_ds()	(KERNEL_DS)
 #define get_fs()	(current_thread_info()->addr_limit)
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
+void __set_fs(mm_segment_t x);
+void set_fs(mm_segment_t x);
+#else
 #define set_fs(x)	(current_thread_info()->addr_limit = (x))
+#endif
 
 #define segment_eq(a, b)	((a).seg == (b).seg)
 
@@ -77,8 +83,33 @@
  * checks that the pointer is in the user space range - after calling
  * this function, memory access functions may still return -EFAULT.
  */
-#define access_ok(type, addr, size) \
-	(likely(__range_not_ok(addr, size, user_addr_max()) == 0))
+#define __access_ok(type, addr, size) (likely(__range_not_ok(addr, size, user_addr_max()) == 0))
+#define access_ok(type, addr, size)					\
+({									\
+	long __size = size;						\
+	unsigned long __addr = (unsigned long)addr;			\
+	unsigned long __addr_ao = __addr & PAGE_MASK;			\
+	unsigned long __end_ao = __addr + __size - 1;			\
+	bool __ret_ao = __range_not_ok(__addr, __size, user_addr_max()) == 0;\
+	if (__ret_ao && unlikely((__end_ao ^ __addr_ao) & PAGE_MASK)) {	\
+		while(__addr_ao <= __end_ao) {				\
+			char __c_ao;					\
+			__addr_ao += PAGE_SIZE;				\
+			if (__size > PAGE_SIZE)				\
+				cond_resched();				\
+			if (__get_user(__c_ao, (char __user *)__addr))	\
+				break;					\
+			if (type != VERIFY_WRITE) {			\
+				__addr = __addr_ao;			\
+				continue;				\
+			}						\
+			if (__put_user(__c_ao, (char __user *)__addr))	\
+				break;					\
+			__addr = __addr_ao;				\
+		}							\
+	}								\
+	__ret_ao;							\
+})
 
 /*
  * The exception table consists of pairs of addresses relative to the
@@ -176,13 +207,21 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
 	asm volatile("call __put_user_" #size : "=a" (__ret_pu)	\
 		     : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
 
-
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define __copyuser_seg "gs;"
+#define __COPYUSER_SET_ES "pushl %%gs; popl %%es\n"
+#define __COPYUSER_RESTORE_ES "pushl %%ss; popl %%es\n"
+#else
+#define __copyuser_seg
+#define __COPYUSER_SET_ES
+#define __COPYUSER_RESTORE_ES
+#endif
 
 #ifdef CONFIG_X86_32
 #define __put_user_asm_u64(x, addr, err, errret)			\
 	asm volatile(ASM_STAC "\n"					\
-		     "1:	movl %%eax,0(%2)\n"			\
-		     "2:	movl %%edx,4(%2)\n"			\
+		     "1:	"__copyuser_seg"movl %%eax,0(%2)\n"	\
+		     "2:	"__copyuser_seg"movl %%edx,4(%2)\n"	\
 		     "3: " ASM_CLAC "\n"				\
 		     ".section .fixup,\"ax\"\n"				\
 		     "4:	movl %3,%0\n"				\
@@ -195,8 +234,8 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
 
 #define __put_user_asm_ex_u64(x, addr)					\
 	asm volatile(ASM_STAC "\n"					\
-		     "1:	movl %%eax,0(%1)\n"			\
-		     "2:	movl %%edx,4(%1)\n"			\
+		     "1:	"__copyuser_seg"movl %%eax,0(%1)\n"	\
+		     "2:	"__copyuser_seg"movl %%edx,4(%1)\n"	\
 		     "3: " ASM_CLAC "\n"				\
 		     _ASM_EXTABLE_EX(1b, 2b)				\
 		     _ASM_EXTABLE_EX(2b, 3b)				\
@@ -246,7 +285,7 @@ extern void __put_user_8(void);
 	__typeof__(*(ptr)) __pu_val;				\
 	__chk_user_ptr(ptr);					\
 	might_fault();						\
-	__pu_val = x;						\
+	__pu_val = (x);						\
 	switch (sizeof(*(ptr))) {				\
 	case 1:							\
 		__put_user_x(1, __pu_val, ptr, __ret_pu);	\
@@ -345,7 +384,7 @@ do {									\
 
 #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret)	\
 	asm volatile(ASM_STAC "\n"					\
-		     "1:	mov"itype" %2,%"rtype"1\n"		\
+		     "1:	"__copyuser_seg"mov"itype" %2,%"rtype"1\n"\
 		     "2: " ASM_CLAC "\n"				\
 		     ".section .fixup,\"ax\"\n"				\
 		     "3:	mov %3,%0\n"				\
@@ -353,7 +392,7 @@ do {									\
 		     "	jmp 2b\n"					\
 		     ".previous\n"					\
 		     _ASM_EXTABLE(1b, 3b)				\
-		     : "=r" (err), ltype(x)				\
+		     : "=r" (err), ltype (x)				\
 		     : "m" (__m(addr)), "i" (errret), "0" (err))
 
 #define __get_user_size_ex(x, ptr, size)				\
@@ -378,7 +417,7 @@ do {									\
 } while (0)
 
 #define __get_user_asm_ex(x, addr, itype, rtype, ltype)			\
-	asm volatile("1:	mov"itype" %1,%"rtype"0\n"		\
+	asm volatile("1:	"__copyuser_seg"mov"itype" %1,%"rtype"0\n"\
 		     "2:\n"						\
 		     _ASM_EXTABLE_EX(1b, 2b)				\
 		     : ltype(x) : "m" (__m(addr)))
@@ -395,13 +434,24 @@ do {									\
 	int __gu_err;							\
 	unsigned long __gu_val;						\
 	__get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT);	\
-	(x) = (__force __typeof__(*(ptr)))__gu_val;			\
+	(x) = (__typeof__(*(ptr)))__gu_val;				\
 	__gu_err;							\
 })
 
 /* FIXME: this hack is definitely wrong -AK */
 struct __large_struct { unsigned long buf[100]; };
-#define __m(x) (*(struct __large_struct __user *)(x))
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define ____m(x)					\
+({							\
+	unsigned long ____x = (unsigned long)(x);	\
+	if (____x < pax_user_shadow_base)		\
+		____x += pax_user_shadow_base;		\
+	(typeof(x))____x;				\
+})
+#else
+#define ____m(x) (x)
+#endif
+#define __m(x) (*(struct __large_struct __user *)____m(x))
 
 /*
  * Tell gcc we read from memory instead of writing: this is because
@@ -410,7 +460,7 @@ struct __large_struct { unsigned long buf[100]; };
  */
 #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret)	\
 	asm volatile(ASM_STAC "\n"					\
-		     "1:	mov"itype" %"rtype"1,%2\n"		\
+		     "1:	"__copyuser_seg"mov"itype" %"rtype"1,%2\n"\
 		     "2: " ASM_CLAC "\n"				\
 		     ".section .fixup,\"ax\"\n"				\
 		     "3:	mov %3,%0\n"				\
@@ -418,10 +468,10 @@ struct __large_struct { unsigned long buf[100]; };
 		     ".previous\n"					\
 		     _ASM_EXTABLE(1b, 3b)				\
 		     : "=r"(err)					\
-		     : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err))
+		     : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err))
 
 #define __put_user_asm_ex(x, addr, itype, rtype, ltype)			\
-	asm volatile("1:	mov"itype" %"rtype"0,%1\n"		\
+	asm volatile("1:	"__copyuser_seg"mov"itype" %"rtype"0,%1\n"\
 		     "2:\n"						\
 		     _ASM_EXTABLE_EX(1b, 2b)				\
 		     : : ltype(x), "m" (__m(addr)))
@@ -460,8 +510,12 @@ struct __large_struct { unsigned long buf[100]; };
  * On error, the variable @x is set to zero.
  */
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define __get_user(x, ptr)	get_user((x), (ptr))
+#else
 #define __get_user(x, ptr)						\
 	__get_user_nocheck((x), (ptr), sizeof(*(ptr)))
+#endif
 
 /**
  * __put_user: - Write a simple value into user space, with less checking.
@@ -483,8 +537,12 @@ struct __large_struct { unsigned long buf[100]; };
  * Returns zero on success, or -EFAULT on error.
  */
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define __put_user(x, ptr)	put_user((x), (ptr))
+#else
 #define __put_user(x, ptr)						\
 	__put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
+#endif
 
 #define __get_user_unaligned __get_user
 #define __put_user_unaligned __put_user
@@ -502,7 +560,7 @@ struct __large_struct { unsigned long buf[100]; };
 #define get_user_ex(x, ptr)	do {					\
 	unsigned long __gue_val;					\
 	__get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr))));	\
-	(x) = (__force __typeof__(*(ptr)))__gue_val;			\
+	(x) = (__typeof__(*(ptr)))__gue_val;				\
 } while (0)
 
 #define put_user_try		uaccess_try
@@ -519,8 +577,8 @@ strncpy_from_user(char *dst, const char __user *src, long count);
 extern __must_check long strlen_user(const char __user *str);
 extern __must_check long strnlen_user(const char __user *str, long n);
 
-unsigned long __must_check clear_user(void __user *mem, unsigned long len);
-unsigned long __must_check __clear_user(void __user *mem, unsigned long len);
+unsigned long __must_check clear_user(void __user *mem, unsigned long len) __size_overflow(2);
+unsigned long __must_check __clear_user(void __user *mem, unsigned long len) __size_overflow(2);
 
 /*
  * movsl can be slow when source and dest are not both 8-byte aligned
diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
index 7f760a9..04b1c65 100644
--- a/arch/x86/include/asm/uaccess_32.h
+++ b/arch/x86/include/asm/uaccess_32.h
@@ -11,15 +11,15 @@
 #include <asm/page.h>
 
 unsigned long __must_check __copy_to_user_ll
-		(void __user *to, const void *from, unsigned long n);
+		(void __user *to, const void *from, unsigned long n) __size_overflow(3);
 unsigned long __must_check __copy_from_user_ll
-		(void *to, const void __user *from, unsigned long n);
+		(void *to, const void __user *from, unsigned long n) __size_overflow(3);
 unsigned long __must_check __copy_from_user_ll_nozero
-		(void *to, const void __user *from, unsigned long n);
+		(void *to, const void __user *from, unsigned long n) __size_overflow(3);
 unsigned long __must_check __copy_from_user_ll_nocache
-		(void *to, const void __user *from, unsigned long n);
+		(void *to, const void __user *from, unsigned long n) __size_overflow(3);
 unsigned long __must_check __copy_from_user_ll_nocache_nozero
-		(void *to, const void __user *from, unsigned long n);
+		(void *to, const void __user *from, unsigned long n) __size_overflow(3);
 
 /**
  * __copy_to_user_inatomic: - Copy a block of data into user space, with less checking.
@@ -43,6 +43,11 @@ unsigned long __must_check __copy_from_user_ll_nocache_nozero
 static __always_inline unsigned long __must_check
 __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
+	check_object_size(from, n, true);
+
 	if (__builtin_constant_p(n)) {
 		unsigned long ret;
 
@@ -82,12 +87,16 @@ static __always_inline unsigned long __must_check
 __copy_to_user(void __user *to, const void *from, unsigned long n)
 {
 	might_fault();
+
 	return __copy_to_user_inatomic(to, from, n);
 }
 
 static __always_inline unsigned long
 __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	/* Avoid zeroing the tail if the copy fails..
 	 * If 'n' is constant and 1, 2, or 4, we do still zero on a failure,
 	 * but as the zeroing behaviour is only significant when n is not
@@ -137,6 +146,12 @@ static __always_inline unsigned long
 __copy_from_user(void *to, const void __user *from, unsigned long n)
 {
 	might_fault();
+
+	if ((long)n < 0)
+		return n;
+
+	check_object_size(to, n, false);
+
 	if (__builtin_constant_p(n)) {
 		unsigned long ret;
 
@@ -159,6 +174,10 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to,
 				const void __user *from, unsigned long n)
 {
 	might_fault();
+
+	if ((long)n < 0)
+		return n;
+
 	if (__builtin_constant_p(n)) {
 		unsigned long ret;
 
@@ -181,15 +200,19 @@ static __always_inline unsigned long
 __copy_from_user_inatomic_nocache(void *to, const void __user *from,
 				  unsigned long n)
 {
-       return __copy_from_user_ll_nocache_nozero(to, from, n);
+	if ((long)n < 0)
+		return n;
+
+	return __copy_from_user_ll_nocache_nozero(to, from, n);
 }
 
-unsigned long __must_check copy_to_user(void __user *to,
-					const void *from, unsigned long n);
-unsigned long __must_check _copy_from_user(void *to,
-					  const void __user *from,
-					  unsigned long n);
-
+extern void copy_to_user_overflow(void)
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+	__compiletime_error("copy_to_user() buffer size is not provably correct")
+#else
+	__compiletime_warning("copy_to_user() buffer size is not provably correct")
+#endif
+;
 
 extern void copy_from_user_overflow(void)
 #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
@@ -199,17 +222,60 @@ extern void copy_from_user_overflow(void)
 #endif
 ;
 
-static inline unsigned long __must_check copy_from_user(void *to,
-					  const void __user *from,
-					  unsigned long n)
+/**
+ * copy_to_user: - Copy a block of data into user space.
+ * @to:   Destination address, in user space.
+ * @from: Source address, in kernel space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from kernel space to user space.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ */
+static inline unsigned long __must_check
+copy_to_user(void __user *to, const void *from, unsigned long n)
 {
-	int sz = __compiletime_object_size(to);
+	size_t sz = __compiletime_object_size(from);
 
-	if (likely(sz == -1 || sz >= n))
-		n = _copy_from_user(to, from, n);
-	else
+	if (unlikely(sz != (size_t)-1 && sz < n))
+		copy_to_user_overflow();
+	else if (access_ok(VERIFY_WRITE, to, n))
+		n = __copy_to_user(to, from, n);
+	return n;
+}
+
+/**
+ * copy_from_user: - Copy a block of data from user space.
+ * @to:   Destination address, in kernel space.
+ * @from: Source address, in user space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from user space to kernel space.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ *
+ * If some data could not be copied, this function will pad the copied
+ * data to the requested size using zero bytes.
+ */
+static inline unsigned long __must_check
+copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+	size_t sz = __compiletime_object_size(to);
+
+	check_object_size(to, n, false);
+
+	if (unlikely(sz != (size_t)-1 && sz < n))
 		copy_from_user_overflow();
-
+	else if (access_ok(VERIFY_READ, from, n))
+		n = __copy_from_user(to, from, n);
+	else if ((long)n > 0)
+		memset(to, 0, n);
 	return n;
 }
 
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 142810c..1f2a0a7 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -10,6 +10,9 @@
 #include <asm/alternative.h>
 #include <asm/cpufeature.h>
 #include <asm/page.h>
+#include <asm/pgtable.h>
+
+#define set_fs(x)	(current_thread_info()->addr_limit = (x))
 
 /*
  * Copy To/From Userspace
@@ -17,13 +20,13 @@
 
 /* Handles exceptions in both to and from, but doesn't do access_ok */
 __must_check unsigned long
-copy_user_enhanced_fast_string(void *to, const void *from, unsigned len);
+copy_user_enhanced_fast_string(void *to, const void *from, unsigned len) __size_overflow(3);
 __must_check unsigned long
-copy_user_generic_string(void *to, const void *from, unsigned len);
+copy_user_generic_string(void *to, const void *from, unsigned len) __size_overflow(3);
 __must_check unsigned long
-copy_user_generic_unrolled(void *to, const void *from, unsigned len);
+copy_user_generic_unrolled(void *to, const void *from, unsigned len) __size_overflow(3);
 
-static __always_inline __must_check unsigned long
+static __always_inline __must_check  __size_overflow(3) unsigned long
 copy_user_generic(void *to, const void *from, unsigned len)
 {
 	unsigned ret;
@@ -41,142 +44,204 @@ copy_user_generic(void *to, const void *from, unsigned len)
 			 ASM_OUTPUT2("=a" (ret), "=D" (to), "=S" (from),
 				     "=d" (len)),
 			 "1" (to), "2" (from), "3" (len)
-			 : "memory", "rcx", "r8", "r9", "r10", "r11");
+			 : "memory", "rcx", "r8", "r9", "r11");
 	return ret;
 }
 
+static __always_inline __must_check unsigned long
+__copy_to_user(void __user *to, const void *from, unsigned long len);
+static __always_inline __must_check unsigned long
+__copy_from_user(void *to, const void __user *from, unsigned long len);
 __must_check unsigned long
-_copy_to_user(void __user *to, const void *from, unsigned len);
-__must_check unsigned long
-_copy_from_user(void *to, const void __user *from, unsigned len);
-__must_check unsigned long
-copy_in_user(void __user *to, const void __user *from, unsigned len);
+copy_in_user(void __user *to, const void __user *from, unsigned long len);
+
+extern void copy_to_user_overflow(void)
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+	__compiletime_error("copy_to_user() buffer size is not provably correct")
+#else
+	__compiletime_warning("copy_to_user() buffer size is not provably correct")
+#endif
+;
+
+extern void copy_from_user_overflow(void)
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+	__compiletime_error("copy_from_user() buffer size is not provably correct")
+#else
+	__compiletime_warning("copy_from_user() buffer size is not provably correct")
+#endif
+;
 
 static inline unsigned long __must_check copy_from_user(void *to,
 					  const void __user *from,
 					  unsigned long n)
 {
-	int sz = __compiletime_object_size(to);
-
 	might_fault();
-	if (likely(sz == -1 || sz >= n))
-		n = _copy_from_user(to, from, n);
-#ifdef CONFIG_DEBUG_VM
-	else
-		WARN(1, "Buffer overflow detected!\n");
-#endif
+
+	check_object_size(to, n, false);
+
+	if (access_ok(VERIFY_READ, from, n))
+		n = __copy_from_user(to, from, n);
+	else if (n < INT_MAX)
+		memset(to, 0, n);
 	return n;
 }
 
 static __always_inline __must_check
-int copy_to_user(void __user *dst, const void *src, unsigned size)
+int copy_to_user(void __user *dst, const void *src, unsigned long size)
 {
 	might_fault();
 
-	return _copy_to_user(dst, src, size);
+	if (access_ok(VERIFY_WRITE, dst, size))
+		size = __copy_to_user(dst, src, size);
+	return size;
 }
 
 static __always_inline __must_check
-int __copy_from_user(void *dst, const void __user *src, unsigned size)
+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long size)
 {
-	int ret = 0;
+	size_t sz = __compiletime_object_size(dst);
+	unsigned ret = 0;
 
 	might_fault();
+
+	if (size > INT_MAX)
+		return size;
+
+	check_object_size(dst, size, false);
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!__access_ok(VERIFY_READ, src, size))
+		return size;
+#endif
+
+	if (unlikely(sz != (size_t)-1 && sz < size)) {
+		copy_from_user_overflow();
+		return size;
+	}
+
 	if (!__builtin_constant_p(size))
-		return copy_user_generic(dst, (__force void *)src, size);
+		return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
 	switch (size) {
-	case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src,
+	case 1:__get_user_asm(*(u8 *)dst, (const u8 __user *)src,
 			      ret, "b", "b", "=q", 1);
 		return ret;
-	case 2:__get_user_asm(*(u16 *)dst, (u16 __user *)src,
+	case 2:__get_user_asm(*(u16 *)dst, (const u16 __user *)src,
 			      ret, "w", "w", "=r", 2);
 		return ret;
-	case 4:__get_user_asm(*(u32 *)dst, (u32 __user *)src,
+	case 4:__get_user_asm(*(u32 *)dst, (const u32 __user *)src,
 			      ret, "l", "k", "=r", 4);
 		return ret;
-	case 8:__get_user_asm(*(u64 *)dst, (u64 __user *)src,
+	case 8:__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
 			      ret, "q", "", "=r", 8);
 		return ret;
 	case 10:
-		__get_user_asm(*(u64 *)dst, (u64 __user *)src,
+		__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
 			       ret, "q", "", "=r", 10);
 		if (unlikely(ret))
 			return ret;
 		__get_user_asm(*(u16 *)(8 + (char *)dst),
-			       (u16 __user *)(8 + (char __user *)src),
+			       (const u16 __user *)(8 + (const char __user *)src),
 			       ret, "w", "w", "=r", 2);
 		return ret;
 	case 16:
-		__get_user_asm(*(u64 *)dst, (u64 __user *)src,
+		__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
 			       ret, "q", "", "=r", 16);
 		if (unlikely(ret))
 			return ret;
 		__get_user_asm(*(u64 *)(8 + (char *)dst),
-			       (u64 __user *)(8 + (char __user *)src),
+			       (const u64 __user *)(8 + (const char __user *)src),
 			       ret, "q", "", "=r", 8);
 		return ret;
 	default:
-		return copy_user_generic(dst, (__force void *)src, size);
+		return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
 	}
 }
 
 static __always_inline __must_check
-int __copy_to_user(void __user *dst, const void *src, unsigned size)
+unsigned long __copy_to_user(void __user *dst, const void *src, unsigned long size)
 {
-	int ret = 0;
+	size_t sz = __compiletime_object_size(src);
+	unsigned ret = 0;
 
 	might_fault();
+
+	if (size > INT_MAX)
+		return size;
+
+	check_object_size(src, size, true);
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!__access_ok(VERIFY_WRITE, dst, size))
+		return size;
+#endif
+
+	if (unlikely(sz != (size_t)-1 && sz < size)) {
+		copy_to_user_overflow();
+		return size;
+	}
+
 	if (!__builtin_constant_p(size))
-		return copy_user_generic((__force void *)dst, src, size);
+		return copy_user_generic((__force_kernel void *)____m(dst), src, size);
 	switch (size) {
-	case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst,
+	case 1:__put_user_asm(*(const u8 *)src, (u8 __user *)dst,
 			      ret, "b", "b", "iq", 1);
 		return ret;
-	case 2:__put_user_asm(*(u16 *)src, (u16 __user *)dst,
+	case 2:__put_user_asm(*(const u16 *)src, (u16 __user *)dst,
 			      ret, "w", "w", "ir", 2);
 		return ret;
-	case 4:__put_user_asm(*(u32 *)src, (u32 __user *)dst,
+	case 4:__put_user_asm(*(const u32 *)src, (u32 __user *)dst,
 			      ret, "l", "k", "ir", 4);
 		return ret;
-	case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst,
+	case 8:__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
 			      ret, "q", "", "er", 8);
 		return ret;
 	case 10:
-		__put_user_asm(*(u64 *)src, (u64 __user *)dst,
+		__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
 			       ret, "q", "", "er", 10);
 		if (unlikely(ret))
 			return ret;
 		asm("":::"memory");
-		__put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst,
+		__put_user_asm(4[(const u16 *)src], 4 + (u16 __user *)dst,
 			       ret, "w", "w", "ir", 2);
 		return ret;
 	case 16:
-		__put_user_asm(*(u64 *)src, (u64 __user *)dst,
+		__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
 			       ret, "q", "", "er", 16);
 		if (unlikely(ret))
 			return ret;
 		asm("":::"memory");
-		__put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst,
+		__put_user_asm(1[(const u64 *)src], 1 + (u64 __user *)dst,
 			       ret, "q", "", "er", 8);
 		return ret;
 	default:
-		return copy_user_generic((__force void *)dst, src, size);
+		return copy_user_generic((__force_kernel void *)____m(dst), src, size);
 	}
 }
 
 static __always_inline __must_check
-int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
+unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned long size)
 {
-	int ret = 0;
+	unsigned ret = 0;
 
 	might_fault();
+
+	if (size > INT_MAX)
+		return size;
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!__access_ok(VERIFY_READ, src, size))
+		return size;
+	if (!__access_ok(VERIFY_WRITE, dst, size))
+		return size;
+#endif
+
 	if (!__builtin_constant_p(size))
-		return copy_user_generic((__force void *)dst,
-					 (__force void *)src, size);
+		return copy_user_generic((__force_kernel void *)____m(dst),
+					 (__force_kernel const void *)____m(src), size);
 	switch (size) {
 	case 1: {
 		u8 tmp;
-		__get_user_asm(tmp, (u8 __user *)src,
+		__get_user_asm(tmp, (const u8 __user *)src,
 			       ret, "b", "b", "=q", 1);
 		if (likely(!ret))
 			__put_user_asm(tmp, (u8 __user *)dst,
@@ -185,7 +250,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 	}
 	case 2: {
 		u16 tmp;
-		__get_user_asm(tmp, (u16 __user *)src,
+		__get_user_asm(tmp, (const u16 __user *)src,
 			       ret, "w", "w", "=r", 2);
 		if (likely(!ret))
 			__put_user_asm(tmp, (u16 __user *)dst,
@@ -195,7 +260,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 
 	case 4: {
 		u32 tmp;
-		__get_user_asm(tmp, (u32 __user *)src,
+		__get_user_asm(tmp, (const u32 __user *)src,
 			       ret, "l", "k", "=r", 4);
 		if (likely(!ret))
 			__put_user_asm(tmp, (u32 __user *)dst,
@@ -204,7 +269,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 	}
 	case 8: {
 		u64 tmp;
-		__get_user_asm(tmp, (u64 __user *)src,
+		__get_user_asm(tmp, (const u64 __user *)src,
 			       ret, "q", "", "=r", 8);
 		if (likely(!ret))
 			__put_user_asm(tmp, (u64 __user *)dst,
@@ -212,41 +277,72 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 		return ret;
 	}
 	default:
-		return copy_user_generic((__force void *)dst,
-					 (__force void *)src, size);
+		return copy_user_generic((__force_kernel void *)____m(dst),
+					 (__force_kernel const void *)____m(src), size);
 	}
 }
 
 static __must_check __always_inline int
-__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
+__copy_from_user_inatomic(void *dst, const void __user *src, unsigned long size)
 {
-	return copy_user_generic(dst, (__force const void *)src, size);
+	if (size > INT_MAX)
+		return size;
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!__access_ok(VERIFY_READ, src, size))
+		return size;
+#endif
+
+	return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
 }
 
-static __must_check __always_inline int
-__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
+static __must_check __always_inline unsigned long
+__copy_to_user_inatomic(void __user *dst, const void *src, unsigned long size)
 {
-	return copy_user_generic((__force void *)dst, src, size);
+	if (size > INT_MAX)
+		return size;
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!__access_ok(VERIFY_WRITE, dst, size))
+		return size;
+#endif
+
+	return copy_user_generic((__force_kernel void *)____m(dst), src, size);
 }
 
-extern long __copy_user_nocache(void *dst, const void __user *src,
-				unsigned size, int zerorest);
+extern unsigned long __copy_user_nocache(void *dst, const void __user *src,
+				unsigned long size, int zerorest) __size_overflow(3);
 
-static inline int
-__copy_from_user_nocache(void *dst, const void __user *src, unsigned size)
+static inline unsigned long __copy_from_user_nocache(void *dst, const void __user *src, unsigned long size)
 {
 	might_sleep();
+
+	if (size > INT_MAX)
+		return size;
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!__access_ok(VERIFY_READ, src, size))
+		return size;
+#endif
+
 	return __copy_user_nocache(dst, src, size, 1);
 }
 
-static inline int
-__copy_from_user_inatomic_nocache(void *dst, const void __user *src,
-				  unsigned size)
+static inline unsigned long __copy_from_user_inatomic_nocache(void *dst, const void __user *src,
+				  unsigned long size)
 {
+	if (size > INT_MAX)
+		return size;
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!__access_ok(VERIFY_READ, src, size))
+		return size;
+#endif
+
 	return __copy_user_nocache(dst, src, size, 0);
 }
 
-unsigned long
-copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest);
+extern unsigned long
+copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest) __size_overflow(3);
 
 #endif /* _ASM_X86_UACCESS_64_H */
diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
index 5b238981..77fdd78 100644
--- a/arch/x86/include/asm/word-at-a-time.h
+++ b/arch/x86/include/asm/word-at-a-time.h
@@ -11,7 +11,7 @@
  * and shift, for example.
  */
 struct word_at_a_time {
-	const unsigned long one_bits, high_bits;
+	unsigned long one_bits, high_bits;
 };
 
 #define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index d8d9922..bf6cecb 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -129,7 +129,7 @@ struct x86_init_ops {
 	struct x86_init_timers		timers;
 	struct x86_init_iommu		iommu;
 	struct x86_init_pci		pci;
-};
+} __no_const;
 
 /**
  * struct x86_cpuinit_ops - platform specific cpu hotplug setups
@@ -140,7 +140,7 @@ struct x86_cpuinit_ops {
 	void (*setup_percpu_clockev)(void);
 	void (*early_percpu_clock_init)(void);
 	void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
-};
+} __no_const;
 
 /**
  * struct x86_platform_ops - platform specific runtime functions
@@ -166,7 +166,7 @@ struct x86_platform_ops {
 	void (*save_sched_clock_state)(void);
 	void (*restore_sched_clock_state)(void);
 	void (*apic_post_init)(void);
-};
+} __no_const;
 
 struct pci_dev;
 struct msi_msg;
@@ -180,7 +180,7 @@ struct x86_msi_ops {
 	void (*teardown_msi_irqs)(struct pci_dev *dev);
 	void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
 	int  (*setup_hpet_msi)(unsigned int irq, unsigned int id);
-};
+} __no_const;
 
 struct IO_APIC_route_entry;
 struct io_apic_irq_attr;
@@ -201,7 +201,7 @@ struct x86_io_apic_ops {
 				       unsigned int destination, int vector,
 				       struct io_apic_irq_attr *attr);
 	void		(*eoi_ioapic_pin)(int apic, int pin, int vector);
-};
+} __no_const;
 
 extern struct x86_init_ops x86_init;
 extern struct x86_cpuinit_ops x86_cpuinit;
diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
index 0415cda..b43d877 100644
--- a/arch/x86/include/asm/xsave.h
+++ b/arch/x86/include/asm/xsave.h
@@ -71,7 +71,9 @@ static inline int xsave_user(struct xsave_struct __user *buf)
 		return -EFAULT;
 
 	__asm__ __volatile__(ASM_STAC "\n"
-			     "1: .byte " REX_PREFIX "0x0f,0xae,0x27\n"
+			     "1:"
+			     __copyuser_seg
+			     ".byte " REX_PREFIX "0x0f,0xae,0x27\n"
 			     "2: " ASM_CLAC "\n"
 			     ".section .fixup,\"ax\"\n"
 			     "3:  movl $-1,%[err]\n"
@@ -87,12 +89,14 @@ static inline int xsave_user(struct xsave_struct __user *buf)
 static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask)
 {
 	int err;
-	struct xsave_struct *xstate = ((__force struct xsave_struct *)buf);
+	struct xsave_struct *xstate = ((__force_kernel struct xsave_struct *)buf);
 	u32 lmask = mask;
 	u32 hmask = mask >> 32;
 
 	__asm__ __volatile__(ASM_STAC "\n"
-			     "1: .byte " REX_PREFIX "0x0f,0xae,0x2f\n"
+			     "1:"
+			     __copyuser_seg
+			     ".byte " REX_PREFIX "0x0f,0xae,0x2f\n"
 			     "2: " ASM_CLAC "\n"
 			     ".section .fixup,\"ax\"\n"
 			     "3:  movl $-1,%[err]\n"
diff --git a/arch/x86/include/uapi/asm/e820.h b/arch/x86/include/uapi/asm/e820.h
index bbae024..e1528f9 100644
--- a/arch/x86/include/uapi/asm/e820.h
+++ b/arch/x86/include/uapi/asm/e820.h
@@ -63,7 +63,7 @@ struct e820map {
 #define ISA_START_ADDRESS	0xa0000
 #define ISA_END_ADDRESS		0x100000
 
-#define BIOS_BEGIN		0x000a0000
+#define BIOS_BEGIN		0x000c0000
 #define BIOS_END		0x00100000
 
 #define BIOS_ROM_BASE		0xffe00000
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 7bd3bd3..5dac791 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -22,7 +22,7 @@ obj-y			+= time.o ioport.o ldt.o dumpstack.o nmi.o
 obj-y			+= setup.o x86_init.o i8259.o irqinit.o jump_label.o
 obj-$(CONFIG_IRQ_WORK)  += irq_work.o
 obj-y			+= probe_roms.o
-obj-$(CONFIG_X86_32)	+= i386_ksyms_32.o
+obj-$(CONFIG_X86_32)	+= sys_i386_32.o i386_ksyms_32.o
 obj-$(CONFIG_X86_64)	+= sys_x86_64.o x8664_ksyms_64.o
 obj-y			+= syscall_$(BITS).o
 obj-$(CONFIG_X86_64)	+= vsyscall_64.o
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 230c8ea..f915130 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1361,7 +1361,7 @@ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
  * If your system is blacklisted here, but you find that acpi=force
  * works for you, please contact linux-acpi@vger.kernel.org
  */
-static struct dmi_system_id __initdata acpi_dmi_table[] = {
+static const struct dmi_system_id __initconst acpi_dmi_table[] = {
 	/*
 	 * Boxes that need ACPI disabled
 	 */
@@ -1436,7 +1436,7 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
 };
 
 /* second table for DMI checks that should run after early-quirks */
-static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
+static const struct dmi_system_id __initconst acpi_dmi_table_late[] = {
 	/*
 	 * HP laptops which use a DSDT reporting as HP/SB400/10000,
 	 * which includes some code which overrides all temperature
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 0532f5d..36afc0a 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -74,8 +74,12 @@ int acpi_suspend_lowlevel(void)
 #else /* CONFIG_64BIT */
 #ifdef CONFIG_SMP
 	stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
+
+	pax_open_kernel();
 	early_gdt_descr.address =
 			(unsigned long)get_cpu_gdt_table(smp_processor_id());
+	pax_close_kernel();
+
 	initial_gs = per_cpu_offset(smp_processor_id());
 #endif
 	initial_code = (unsigned long)wakeup_long64;
diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index 13ab720..95d5442 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -30,13 +30,11 @@ wakeup_pmode_return:
 	# and restore the stack ... but you need gdt for this to work
 	movl	saved_context_esp, %esp
 
-	movl	%cs:saved_magic, %eax
-	cmpl	$0x12345678, %eax
+	cmpl	$0x12345678, saved_magic
 	jne	bogus_magic
 
 	# jump to place where we left off
-	movl	saved_eip, %eax
-	jmp	*%eax
+	jmp	*(saved_eip)
 
 bogus_magic:
 	jmp	bogus_magic
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index ef5ccca..bd83949 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -268,6 +268,13 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
 	 */
 	for (a = start; a < end; a++) {
 		instr = (u8 *)&a->instr_offset + a->instr_offset;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		instr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+		if (instr < (u8 *)_text || (u8 *)_einittext <= instr)
+			instr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
 		replacement = (u8 *)&a->repl_offset + a->repl_offset;
 		BUG_ON(a->replacementlen > a->instrlen);
 		BUG_ON(a->instrlen > sizeof(insnbuf));
@@ -299,10 +306,16 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end,
 	for (poff = start; poff < end; poff++) {
 		u8 *ptr = (u8 *)poff + *poff;
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+		if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
+			ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
 		if (!*poff || ptr < text || ptr >= text_end)
 			continue;
 		/* turn DS segment override prefix into lock prefix */
-		if (*ptr == 0x3e)
+		if (*ktla_ktva(ptr) == 0x3e)
 			text_poke(ptr, ((unsigned char []){0xf0}), 1);
 	}
 	mutex_unlock(&text_mutex);
@@ -317,10 +330,16 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end,
 	for (poff = start; poff < end; poff++) {
 		u8 *ptr = (u8 *)poff + *poff;
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+		if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
+			ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
 		if (!*poff || ptr < text || ptr >= text_end)
 			continue;
 		/* turn lock prefix into DS segment override prefix */
-		if (*ptr == 0xf0)
+		if (*ktla_ktva(ptr) == 0xf0)
 			text_poke(ptr, ((unsigned char []){0x3E}), 1);
 	}
 	mutex_unlock(&text_mutex);
@@ -468,7 +487,7 @@ void __init_or_module apply_paravirt(struct paravirt_patch_site *start,
 
 		BUG_ON(p->len > MAX_PATCH_LEN);
 		/* prep the buffer with the original instructions */
-		memcpy(insnbuf, p->instr, p->len);
+		memcpy(insnbuf, ktla_ktva(p->instr), p->len);
 		used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf,
 					 (unsigned long)p->instr, p->len);
 
@@ -515,7 +534,7 @@ void __init alternative_instructions(void)
 	if (!uniproc_patched || num_possible_cpus() == 1)
 		free_init_pages("SMP alternatives",
 				(unsigned long)__smp_locks,
-				(unsigned long)__smp_locks_end);
+				PAGE_ALIGN((unsigned long)__smp_locks_end));
 #endif
 
 	apply_paravirt(__parainstructions, __parainstructions_end);
@@ -535,13 +554,17 @@ void __init alternative_instructions(void)
  * instructions. And on the local CPU you need to be protected again NMI or MCE
  * handlers seeing an inconsistent instruction while you patch.
  */
-void *__init_or_module text_poke_early(void *addr, const void *opcode,
+void *__kprobes text_poke_early(void *addr, const void *opcode,
 					      size_t len)
 {
 	unsigned long flags;
 	local_irq_save(flags);
-	memcpy(addr, opcode, len);
+
+	pax_open_kernel();
+	memcpy(ktla_ktva(addr), opcode, len);
 	sync_core();
+	pax_close_kernel();
+
 	local_irq_restore(flags);
 	/* Could also do a CLFLUSH here to speed up CPU recovery; but
 	   that causes hangs on some VIA CPUs. */
@@ -563,36 +586,22 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode,
  */
 void *__kprobes text_poke(void *addr, const void *opcode, size_t len)
 {
-	unsigned long flags;
-	char *vaddr;
+	unsigned char *vaddr = ktla_ktva(addr);
 	struct page *pages[2];
-	int i;
+	size_t i;
 
 	if (!core_kernel_text((unsigned long)addr)) {
-		pages[0] = vmalloc_to_page(addr);
-		pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
+		pages[0] = vmalloc_to_page(vaddr);
+		pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE);
 	} else {
-		pages[0] = virt_to_page(addr);
+		pages[0] = virt_to_page(vaddr);
 		WARN_ON(!PageReserved(pages[0]));
-		pages[1] = virt_to_page(addr + PAGE_SIZE);
+		pages[1] = virt_to_page(vaddr + PAGE_SIZE);
 	}
 	BUG_ON(!pages[0]);
-	local_irq_save(flags);
-	set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0]));
-	if (pages[1])
-		set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1]));
-	vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0);
-	memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len);
-	clear_fixmap(FIX_TEXT_POKE0);
-	if (pages[1])
-		clear_fixmap(FIX_TEXT_POKE1);
-	local_flush_tlb();
-	sync_core();
-	/* Could also do a CLFLUSH here to speed up CPU recovery; but
-	   that causes hangs on some VIA CPUs. */
+	text_poke_early(addr, opcode, len);
 	for (i = 0; i < len; i++)
-		BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]);
-	local_irq_restore(flags);
+		BUG_ON((vaddr)[i] != ((const unsigned char *)opcode)[i]);
 	return addr;
 }
 
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 904611b..004dde6 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -189,7 +189,7 @@ int first_system_vector = 0xfe;
 /*
  * Debug level, exported for io_apic.c
  */
-unsigned int apic_verbosity;
+int apic_verbosity;
 
 int pic_mode;
 
@@ -1955,7 +1955,7 @@ void smp_error_interrupt(struct pt_regs *regs)
 	apic_write(APIC_ESR, 0);
 	v1 = apic_read(APIC_ESR);
 	ack_APIC_irq();
-	atomic_inc(&irq_err_count);
+	atomic_inc_unchecked(&irq_err_count);
 
 	apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x(%02x)",
 		    smp_processor_id(), v0 , v1);
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index 00c77cf..2dc6a2d 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -157,7 +157,7 @@ static int flat_probe(void)
 	return 1;
 }
 
-static struct apic apic_flat =  {
+static struct apic apic_flat __read_only =  {
 	.name				= "flat",
 	.probe				= flat_probe,
 	.acpi_madt_oem_check		= flat_acpi_madt_oem_check,
@@ -271,7 +271,7 @@ static int physflat_probe(void)
 	return 0;
 }
 
-static struct apic apic_physflat =  {
+static struct apic apic_physflat __read_only =  {
 
 	.name				= "physical flat",
 	.probe				= physflat_probe,
diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
index e145f28..2752888 100644
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -119,7 +119,7 @@ static void noop_apic_write(u32 reg, u32 v)
 	WARN_ON_ONCE(cpu_has_apic && !disable_apic);
 }
 
-struct apic apic_noop = {
+struct apic apic_noop __read_only = {
 	.name				= "noop",
 	.probe				= noop_probe,
 	.acpi_madt_oem_check		= NULL,
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index d50e364..543bee3 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -152,7 +152,7 @@ static int probe_bigsmp(void)
 	return dmi_bigsmp;
 }
 
-static struct apic apic_bigsmp = {
+static struct apic apic_bigsmp __read_only = {
 
 	.name				= "bigsmp",
 	.probe				= probe_bigsmp,
diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c
index 0874799..a7a7892 100644
--- a/arch/x86/kernel/apic/es7000_32.c
+++ b/arch/x86/kernel/apic/es7000_32.c
@@ -608,8 +608,7 @@ static int es7000_mps_oem_check_cluster(struct mpc_table *mpc, char *oem,
 	return ret && es7000_apic_is_cluster();
 }
 
-/* We've been warned by a false positive warning.Use __refdata to keep calm. */
-static struct apic __refdata apic_es7000_cluster = {
+static struct apic apic_es7000_cluster __read_only = {
 
 	.name				= "es7000",
 	.probe				= probe_es7000,
@@ -675,7 +674,7 @@ static struct apic __refdata apic_es7000_cluster = {
 	.x86_32_early_logical_apicid	= es7000_early_logical_apicid,
 };
 
-static struct apic __refdata apic_es7000 = {
+static struct apic apic_es7000 __read_only = {
 
 	.name				= "es7000",
 	.probe				= probe_es7000,
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 9ed796c..e930fe4 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1060,7 +1060,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin,
 }
 EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector);
 
-void lock_vector_lock(void)
+void lock_vector_lock(void) __acquires(vector_lock)
 {
 	/* Used to the online set of cpus does not change
 	 * during assign_irq_vector.
@@ -1068,7 +1068,7 @@ void lock_vector_lock(void)
 	raw_spin_lock(&vector_lock);
 }
 
-void unlock_vector_lock(void)
+void unlock_vector_lock(void) __releases(vector_lock)
 {
 	raw_spin_unlock(&vector_lock);
 }
@@ -2362,7 +2362,7 @@ static void ack_apic_edge(struct irq_data *data)
 	ack_APIC_irq();
 }
 
-atomic_t irq_mis_count;
+atomic_unchecked_t irq_mis_count;
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
 static bool io_apic_level_ack_pending(struct irq_cfg *cfg)
@@ -2503,7 +2503,7 @@ static void ack_apic_level(struct irq_data *data)
 	 * at the cpu.
 	 */
 	if (!(v & (1 << (i & 0x1f)))) {
-		atomic_inc(&irq_mis_count);
+		atomic_inc_unchecked(&irq_mis_count);
 
 		eoi_ioapic_irq(irq, cfg);
 	}
diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c
index d661ee9..791fd33 100644
--- a/arch/x86/kernel/apic/numaq_32.c
+++ b/arch/x86/kernel/apic/numaq_32.c
@@ -455,8 +455,7 @@ static void numaq_setup_portio_remap(void)
 		(u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD);
 }
 
-/* Use __refdata to keep false positive warning calm.  */
-static struct apic __refdata apic_numaq = {
+static struct apic apic_numaq __read_only = {
 
 	.name				= "NUMAQ",
 	.probe				= probe_numaq,
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index eb35ef9..f184a21 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -72,7 +72,7 @@ static int probe_default(void)
 	return 1;
 }
 
-static struct apic apic_default = {
+static struct apic apic_default __read_only = {
 
 	.name				= "default",
 	.probe				= probe_default,
diff --git a/arch/x86/kernel/apic/summit_32.c b/arch/x86/kernel/apic/summit_32.c
index 77c95c0..434f8a4 100644
--- a/arch/x86/kernel/apic/summit_32.c
+++ b/arch/x86/kernel/apic/summit_32.c
@@ -486,7 +486,7 @@ void setup_summit(void)
 }
 #endif
 
-static struct apic apic_summit = {
+static struct apic apic_summit __read_only = {
 
 	.name				= "summit",
 	.probe				= probe_summit,
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index c88baa4..757aee1 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -183,7 +183,7 @@ update_clusterinfo(struct notifier_block *nfb, unsigned long action, void *hcpu)
 	return notifier_from_errno(err);
 }
 
-static struct notifier_block __refdata x2apic_cpu_notifier = {
+static struct notifier_block x2apic_cpu_notifier = {
 	.notifier_call = update_clusterinfo,
 };
 
@@ -235,7 +235,7 @@ static void cluster_vector_allocation_domain(int cpu, struct cpumask *retmask,
 		cpumask_and(retmask, mask, per_cpu(cpus_in_cluster, cpu));
 }
 
-static struct apic apic_x2apic_cluster = {
+static struct apic apic_x2apic_cluster __read_only = {
 
 	.name				= "cluster x2apic",
 	.probe				= x2apic_cluster_probe,
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index 562a76d..a003c0f 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -89,7 +89,7 @@ static int x2apic_phys_probe(void)
 	return apic == &apic_x2apic_phys;
 }
 
-static struct apic apic_x2apic_phys = {
+static struct apic apic_x2apic_phys __read_only = {
 
 	.name				= "physical x2apic",
 	.probe				= x2apic_phys_probe,
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 794f6eb..67e1db2 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -342,7 +342,7 @@ static int uv_probe(void)
 	return apic == &apic_x2apic_uv_x;
 }
 
-static struct apic __refdata apic_x2apic_uv_x = {
+static struct apic apic_x2apic_uv_x __read_only = {
 
 	.name				= "UV large system",
 	.probe				= uv_probe,
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 66b5faf..3442423 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -434,7 +434,7 @@ static DEFINE_MUTEX(apm_mutex);
  * This is for buggy BIOS's that refer to (real mode) segment 0x40
  * even though they are called in protected mode.
  */
-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
 			(unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
 
 static const char driver_version[] = "1.16ac";	/* no spaces */
@@ -612,7 +612,10 @@ static long __apm_bios_call(void *_call)
 	BUG_ON(cpu != 0);
 	gdt = get_cpu_gdt_table(cpu);
 	save_desc_40 = gdt[0x40 / 8];
+
+	pax_open_kernel();
 	gdt[0x40 / 8] = bad_bios_desc;
+	pax_close_kernel();
 
 	apm_irq_save(flags);
 	APM_DO_SAVE_SEGS;
@@ -621,7 +624,11 @@ static long __apm_bios_call(void *_call)
 			  &call->esi);
 	APM_DO_RESTORE_SEGS;
 	apm_irq_restore(flags);
+
+	pax_open_kernel();
 	gdt[0x40 / 8] = save_desc_40;
+	pax_close_kernel();
+
 	put_cpu();
 
 	return call->eax & 0xff;
@@ -688,7 +695,10 @@ static long __apm_bios_call_simple(void *_call)
 	BUG_ON(cpu != 0);
 	gdt = get_cpu_gdt_table(cpu);
 	save_desc_40 = gdt[0x40 / 8];
+
+	pax_open_kernel();
 	gdt[0x40 / 8] = bad_bios_desc;
+	pax_close_kernel();
 
 	apm_irq_save(flags);
 	APM_DO_SAVE_SEGS;
@@ -696,7 +706,11 @@ static long __apm_bios_call_simple(void *_call)
 					 &call->eax);
 	APM_DO_RESTORE_SEGS;
 	apm_irq_restore(flags);
+
+	pax_open_kernel();
 	gdt[0x40 / 8] = save_desc_40;
+	pax_close_kernel();
+
 	put_cpu();
 	return error;
 }
@@ -2363,12 +2377,15 @@ static int __init apm_init(void)
 	 * code to that CPU.
 	 */
 	gdt = get_cpu_gdt_table(0);
+
+	pax_open_kernel();
 	set_desc_base(&gdt[APM_CS >> 3],
 		 (unsigned long)__va((unsigned long)apm_info.bios.cseg << 4));
 	set_desc_base(&gdt[APM_CS_16 >> 3],
 		 (unsigned long)__va((unsigned long)apm_info.bios.cseg_16 << 4));
 	set_desc_base(&gdt[APM_DS >> 3],
 		 (unsigned long)__va((unsigned long)apm_info.bios.dseg << 4));
+	pax_close_kernel();
 
 	proc_create("apm", 0, NULL, &apm_file_ops);
 
diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
index 2861082..6d4718e 100644
--- a/arch/x86/kernel/asm-offsets.c
+++ b/arch/x86/kernel/asm-offsets.c
@@ -33,6 +33,8 @@ void common(void) {
 	OFFSET(TI_status, thread_info, status);
 	OFFSET(TI_addr_limit, thread_info, addr_limit);
 	OFFSET(TI_preempt_count, thread_info, preempt_count);
+	OFFSET(TI_lowest_stack, thread_info, lowest_stack);
+	DEFINE(TI_task_thread_sp0, offsetof(struct task_struct, thread.sp0) - offsetof(struct task_struct, tinfo));
 
 	BLANK();
 	OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
@@ -53,8 +55,26 @@ void common(void) {
 	OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
 	OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
 	OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
+
+#ifdef CONFIG_PAX_KERNEXEC
+	OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0);
 #endif
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	OFFSET(PV_MMU_read_cr3, pv_mmu_ops, read_cr3);
+	OFFSET(PV_MMU_write_cr3, pv_mmu_ops, write_cr3);
+#ifdef CONFIG_X86_64
+	OFFSET(PV_MMU_set_pgd_batched, pv_mmu_ops, set_pgd_batched);
+#endif
+#endif
+
+#endif
+
+	BLANK();
+	DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
+	DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT);
+	DEFINE(THREAD_SIZE_asm, THREAD_SIZE);
+
 #ifdef CONFIG_XEN
 	BLANK();
 	OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index 1b4754f..fbb4227 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -76,6 +76,7 @@ int main(void)
 	BLANK();
 #undef ENTRY
 
+	DEFINE(TSS_size, sizeof(struct tss_struct));
 	OFFSET(TSS_ist, tss_struct, x86_tss.ist);
 	BLANK();
 
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index a0e067d..9c7db16 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -8,10 +8,6 @@ CFLAGS_REMOVE_common.o = -pg
 CFLAGS_REMOVE_perf_event.o = -pg
 endif
 
-# Make sure load_percpu_segment has no stackprotector
-nostackp := $(call cc-option, -fno-stack-protector)
-CFLAGS_common.o		:= $(nostackp)
-
 obj-y			:= intel_cacheinfo.o scattered.o topology.o
 obj-y			+= proc.o capflags.o powerflags.o common.o
 obj-y			+= vmware.o hypervisor.o mshyperv.o
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index fa96eb0..03efe73 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -737,7 +737,7 @@ static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 *c,
 							unsigned int size)
 {
 	/* AMD errata T13 (order #21922) */
-	if ((c->x86 == 6)) {
+	if (c->x86 == 6) {
 		/* Duron Rev A0 */
 		if (c->x86_model == 3 && c->x86_mask == 0)
 			size = 64;
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index d814772..c615653 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -88,60 +88,6 @@ static const struct cpu_dev __cpuinitconst default_cpu = {
 
 static const struct cpu_dev *this_cpu __cpuinitdata = &default_cpu;
 
-DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
-#ifdef CONFIG_X86_64
-	/*
-	 * We need valid kernel segments for data and code in long mode too
-	 * IRET will check the segment types  kkeil 2000/10/28
-	 * Also sysret mandates a special GDT layout
-	 *
-	 * TLS descriptors are currently at a different place compared to i386.
-	 * Hopefully nobody expects them at a fixed place (Wine?)
-	 */
-	[GDT_ENTRY_KERNEL32_CS]		= GDT_ENTRY_INIT(0xc09b, 0, 0xfffff),
-	[GDT_ENTRY_KERNEL_CS]		= GDT_ENTRY_INIT(0xa09b, 0, 0xfffff),
-	[GDT_ENTRY_KERNEL_DS]		= GDT_ENTRY_INIT(0xc093, 0, 0xfffff),
-	[GDT_ENTRY_DEFAULT_USER32_CS]	= GDT_ENTRY_INIT(0xc0fb, 0, 0xfffff),
-	[GDT_ENTRY_DEFAULT_USER_DS]	= GDT_ENTRY_INIT(0xc0f3, 0, 0xfffff),
-	[GDT_ENTRY_DEFAULT_USER_CS]	= GDT_ENTRY_INIT(0xa0fb, 0, 0xfffff),
-#else
-	[GDT_ENTRY_KERNEL_CS]		= GDT_ENTRY_INIT(0xc09a, 0, 0xfffff),
-	[GDT_ENTRY_KERNEL_DS]		= GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
-	[GDT_ENTRY_DEFAULT_USER_CS]	= GDT_ENTRY_INIT(0xc0fa, 0, 0xfffff),
-	[GDT_ENTRY_DEFAULT_USER_DS]	= GDT_ENTRY_INIT(0xc0f2, 0, 0xfffff),
-	/*
-	 * Segments used for calling PnP BIOS have byte granularity.
-	 * They code segments and data segments have fixed 64k limits,
-	 * the transfer segment sizes are set at run time.
-	 */
-	/* 32-bit code */
-	[GDT_ENTRY_PNPBIOS_CS32]	= GDT_ENTRY_INIT(0x409a, 0, 0xffff),
-	/* 16-bit code */
-	[GDT_ENTRY_PNPBIOS_CS16]	= GDT_ENTRY_INIT(0x009a, 0, 0xffff),
-	/* 16-bit data */
-	[GDT_ENTRY_PNPBIOS_DS]		= GDT_ENTRY_INIT(0x0092, 0, 0xffff),
-	/* 16-bit data */
-	[GDT_ENTRY_PNPBIOS_TS1]		= GDT_ENTRY_INIT(0x0092, 0, 0),
-	/* 16-bit data */
-	[GDT_ENTRY_PNPBIOS_TS2]		= GDT_ENTRY_INIT(0x0092, 0, 0),
-	/*
-	 * The APM segments have byte granularity and their bases
-	 * are set at run time.  All have 64k limits.
-	 */
-	/* 32-bit code */
-	[GDT_ENTRY_APMBIOS_BASE]	= GDT_ENTRY_INIT(0x409a, 0, 0xffff),
-	/* 16-bit code */
-	[GDT_ENTRY_APMBIOS_BASE+1]	= GDT_ENTRY_INIT(0x009a, 0, 0xffff),
-	/* data */
-	[GDT_ENTRY_APMBIOS_BASE+2]	= GDT_ENTRY_INIT(0x4092, 0, 0xffff),
-
-	[GDT_ENTRY_ESPFIX_SS]		= GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
-	[GDT_ENTRY_PERCPU]		= GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
-	GDT_STACK_CANARY_INIT
-#endif
-} };
-EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
-
 static int __init x86_xsave_setup(char *s)
 {
 	setup_clear_cpu_cap(X86_FEATURE_XSAVE);
@@ -386,7 +332,7 @@ void switch_to_new_gdt(int cpu)
 {
 	struct desc_ptr gdt_descr;
 
-	gdt_descr.address = (long)get_cpu_gdt_table(cpu);
+	gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
 	gdt_descr.size = GDT_SIZE - 1;
 	load_gdt(&gdt_descr);
 	/* Reload the per-cpu base */
@@ -882,6 +828,10 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 	/* Filter out anything that depends on CPUID levels we don't have */
 	filter_cpuid_features(c, true);
 
+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
+	setup_clear_cpu_cap(X86_FEATURE_SEP);
+#endif
+
 	/* If the model name is still unset, do table lookup. */
 	if (!c->x86_model_id[0]) {
 		const char *p;
@@ -1065,10 +1015,12 @@ static __init int setup_disablecpuid(char *arg)
 }
 __setup("clearcpuid=", setup_disablecpuid);
 
+DEFINE_PER_CPU(struct thread_info *, current_tinfo) = &init_task.tinfo;
+EXPORT_PER_CPU_SYMBOL(current_tinfo);
+
 #ifdef CONFIG_X86_64
 struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
-struct desc_ptr nmi_idt_descr = { NR_VECTORS * 16 - 1,
-				    (unsigned long) nmi_idt_table };
+struct desc_ptr nmi_idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) nmi_idt_table };
 
 DEFINE_PER_CPU_FIRST(union irq_stack_union,
 		     irq_stack_union) __aligned(PAGE_SIZE);
@@ -1082,7 +1034,7 @@ DEFINE_PER_CPU(struct task_struct *, current_task) ____cacheline_aligned =
 EXPORT_PER_CPU_SYMBOL(current_task);
 
 DEFINE_PER_CPU(unsigned long, kernel_stack) =
-	(unsigned long)&init_thread_union - KERNEL_STACK_OFFSET + THREAD_SIZE;
+	(unsigned long)&init_thread_union - 16 + THREAD_SIZE;
 EXPORT_PER_CPU_SYMBOL(kernel_stack);
 
 DEFINE_PER_CPU(char *, irq_stack_ptr) =
@@ -1227,7 +1179,7 @@ void __cpuinit cpu_init(void)
 	load_ucode_ap();
 
 	cpu = stack_smp_processor_id();
-	t = &per_cpu(init_tss, cpu);
+	t = init_tss + cpu;
 	oist = &per_cpu(orig_ist, cpu);
 
 #ifdef CONFIG_NUMA
@@ -1253,7 +1205,7 @@ void __cpuinit cpu_init(void)
 	switch_to_new_gdt(cpu);
 	loadsegment(fs, 0);
 
-	load_idt((const struct desc_ptr *)&idt_descr);
+	load_idt(&idt_descr);
 
 	memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8);
 	syscall_init();
@@ -1262,7 +1214,6 @@ void __cpuinit cpu_init(void)
 	wrmsrl(MSR_KERNEL_GS_BASE, 0);
 	barrier();
 
-	x86_configure_nx();
 	enable_x2apic();
 
 	/*
@@ -1314,7 +1265,7 @@ void __cpuinit cpu_init(void)
 {
 	int cpu = smp_processor_id();
 	struct task_struct *curr = current;
-	struct tss_struct *t = &per_cpu(init_tss, cpu);
+	struct tss_struct *t = init_tss + cpu;
 	struct thread_struct *thread = &curr->thread;
 
 	show_ucode_info_early();
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 1905ce9..a7ac587 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -173,7 +173,7 @@ static void __cpuinit trap_init_f00f_bug(void)
 	 * Update the IDT descriptor and reload the IDT so that
 	 * it uses the read-only mapped virtual address.
 	 */
-	idt_descr.address = fix_to_virt(FIX_F00F_IDT);
+	idt_descr.address = (struct desc_struct *)fix_to_virt(FIX_F00F_IDT);
 	load_idt(&idt_descr);
 }
 #endif
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 7c6f7d5..8cac382 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -1017,6 +1017,22 @@ static struct attribute *default_attrs[] = {
 };
 
 #ifdef CONFIG_AMD_NB
+static struct attribute *default_attrs_amd_nb[] = {
+	&type.attr,
+	&level.attr,
+	&coherency_line_size.attr,
+	&physical_line_partition.attr,
+	&ways_of_associativity.attr,
+	&number_of_sets.attr,
+	&size.attr,
+	&shared_cpu_map.attr,
+	&shared_cpu_list.attr,
+	NULL,
+	NULL,
+	NULL,
+	NULL
+};
+
 static struct attribute ** __cpuinit amd_l3_attrs(void)
 {
 	static struct attribute **attrs;
@@ -1027,18 +1043,7 @@ static struct attribute ** __cpuinit amd_l3_attrs(void)
 
 	n = ARRAY_SIZE(default_attrs);
 
-	if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
-		n += 2;
-
-	if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
-		n += 1;
-
-	attrs = kzalloc(n * sizeof (struct attribute *), GFP_KERNEL);
-	if (attrs == NULL)
-		return attrs = default_attrs;
-
-	for (n = 0; default_attrs[n]; n++)
-		attrs[n] = default_attrs[n];
+	attrs = default_attrs_amd_nb;
 
 	if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE)) {
 		attrs[n++] = &cache_disable_0.attr;
@@ -1089,6 +1094,13 @@ static struct kobj_type ktype_cache = {
 	.default_attrs	= default_attrs,
 };
 
+#ifdef CONFIG_AMD_NB
+static struct kobj_type ktype_cache_amd_nb = {
+	.sysfs_ops	= &sysfs_ops,
+	.default_attrs	= default_attrs_amd_nb,
+};
+#endif
+
 static struct kobj_type ktype_percpu_entry = {
 	.sysfs_ops	= &sysfs_ops,
 };
@@ -1154,20 +1166,26 @@ static int __cpuinit cache_add_dev(struct device *dev)
 		return retval;
 	}
 
+#ifdef CONFIG_AMD_NB
+	amd_l3_attrs();
+#endif
+
 	for (i = 0; i < num_cache_leaves; i++) {
+		struct kobj_type *ktype;
+
 		this_object = INDEX_KOBJECT_PTR(cpu, i);
 		this_object->cpu = cpu;
 		this_object->index = i;
 
 		this_leaf = CPUID4_INFO_IDX(cpu, i);
 
-		ktype_cache.default_attrs = default_attrs;
+		ktype = &ktype_cache;
 #ifdef CONFIG_AMD_NB
 		if (this_leaf->base.nb)
-			ktype_cache.default_attrs = amd_l3_attrs();
+			ktype = &ktype_cache_amd_nb;
 #endif
 		retval = kobject_init_and_add(&(this_object->kobj),
-					      &ktype_cache,
+					      ktype,
 					      per_cpu(ici_cache_kobject, cpu),
 					      "index%1lu", i);
 		if (unlikely(retval)) {
@@ -1222,7 +1240,7 @@ static int __cpuinit cacheinfo_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata cacheinfo_cpu_notifier = {
+static struct notifier_block cacheinfo_cpu_notifier = {
 	.notifier_call = cacheinfo_cpu_callback,
 };
 
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 7bc1263..ce2cbfb 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -45,6 +45,7 @@
 #include <asm/processor.h>
 #include <asm/mce.h>
 #include <asm/msr.h>
+#include <asm/local.h>
 
 #include "mce-internal.h"
 
@@ -246,7 +247,7 @@ static void print_mce(struct mce *m)
 			!(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
 				m->cs, m->ip);
 
-		if (m->cs == __KERNEL_CS)
+		if (m->cs == __KERNEL_CS || m->cs == __KERNEXEC_KERNEL_CS)
 			print_symbol("{%s}", m->ip);
 		pr_cont("\n");
 	}
@@ -279,10 +280,10 @@ static void print_mce(struct mce *m)
 
 #define PANIC_TIMEOUT 5 /* 5 seconds */
 
-static atomic_t mce_paniced;
+static atomic_unchecked_t mce_paniced;
 
 static int fake_panic;
-static atomic_t mce_fake_paniced;
+static atomic_unchecked_t mce_fake_paniced;
 
 /* Panic in progress. Enable interrupts and wait for final IPI */
 static void wait_for_panic(void)
@@ -306,7 +307,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
 		/*
 		 * Make sure only one CPU runs in machine check panic
 		 */
-		if (atomic_inc_return(&mce_paniced) > 1)
+		if (atomic_inc_return_unchecked(&mce_paniced) > 1)
 			wait_for_panic();
 		barrier();
 
@@ -314,7 +315,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
 		console_verbose();
 	} else {
 		/* Don't log too much for fake panic */
-		if (atomic_inc_return(&mce_fake_paniced) > 1)
+		if (atomic_inc_return_unchecked(&mce_fake_paniced) > 1)
 			return;
 	}
 	/* First print corrected ones that are still unlogged */
@@ -683,7 +684,7 @@ static int mce_timed_out(u64 *t)
 	 * might have been modified by someone else.
 	 */
 	rmb();
-	if (atomic_read(&mce_paniced))
+	if (atomic_read_unchecked(&mce_paniced))
 		wait_for_panic();
 	if (!mca_cfg.monarch_timeout)
 		goto out;
@@ -1654,7 +1655,7 @@ static void unexpected_machine_check(struct pt_regs *regs, long error_code)
 }
 
 /* Call the installed machine check handler for this CPU setup. */
-void (*machine_check_vector)(struct pt_regs *, long error_code) =
+void (*machine_check_vector)(struct pt_regs *, long error_code) __read_only =
 						unexpected_machine_check;
 
 /*
@@ -1677,7 +1678,9 @@ void __cpuinit mcheck_cpu_init(struct cpuinfo_x86 *c)
 		return;
 	}
 
+	pax_open_kernel();
 	machine_check_vector = do_machine_check;
+	pax_close_kernel();
 
 	__mcheck_cpu_init_generic();
 	__mcheck_cpu_init_vendor(c);
@@ -1691,7 +1694,7 @@ void __cpuinit mcheck_cpu_init(struct cpuinfo_x86 *c)
  */
 
 static DEFINE_SPINLOCK(mce_chrdev_state_lock);
-static int mce_chrdev_open_count;	/* #times opened */
+static local_t mce_chrdev_open_count;	/* #times opened */
 static int mce_chrdev_open_exclu;	/* already open exclusive? */
 
 static int mce_chrdev_open(struct inode *inode, struct file *file)
@@ -1699,7 +1702,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
 	spin_lock(&mce_chrdev_state_lock);
 
 	if (mce_chrdev_open_exclu ||
-	    (mce_chrdev_open_count && (file->f_flags & O_EXCL))) {
+	    (local_read(&mce_chrdev_open_count) && (file->f_flags & O_EXCL))) {
 		spin_unlock(&mce_chrdev_state_lock);
 
 		return -EBUSY;
@@ -1707,7 +1710,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
 
 	if (file->f_flags & O_EXCL)
 		mce_chrdev_open_exclu = 1;
-	mce_chrdev_open_count++;
+	local_inc(&mce_chrdev_open_count);
 
 	spin_unlock(&mce_chrdev_state_lock);
 
@@ -1718,7 +1721,7 @@ static int mce_chrdev_release(struct inode *inode, struct file *file)
 {
 	spin_lock(&mce_chrdev_state_lock);
 
-	mce_chrdev_open_count--;
+	local_dec(&mce_chrdev_open_count);
 	mce_chrdev_open_exclu = 0;
 
 	spin_unlock(&mce_chrdev_state_lock);
@@ -2364,7 +2367,7 @@ mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
 	return NOTIFY_OK;
 }
 
-static struct notifier_block mce_cpu_notifier __cpuinitdata = {
+static struct notifier_block mce_cpu_notifier = {
 	.notifier_call = mce_cpu_callback,
 };
 
@@ -2374,7 +2377,7 @@ static __init void mce_init_banks(void)
 
 	for (i = 0; i < mca_cfg.banks; i++) {
 		struct mce_bank *b = &mce_banks[i];
-		struct device_attribute *a = &b->attr;
+		device_attribute_no_const *a = &b->attr;
 
 		sysfs_attr_init(&a->attr);
 		a->attr.name	= b->attrname;
@@ -2442,7 +2445,7 @@ struct dentry *mce_get_debugfs_dir(void)
 static void mce_reset(void)
 {
 	cpu_missing = 0;
-	atomic_set(&mce_fake_paniced, 0);
+	atomic_set_unchecked(&mce_fake_paniced, 0);
 	atomic_set(&mce_executing, 0);
 	atomic_set(&mce_callin, 0);
 	atomic_set(&global_nwo, 0);
diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c
index 1c044b1..37a2a43 100644
--- a/arch/x86/kernel/cpu/mcheck/p5.c
+++ b/arch/x86/kernel/cpu/mcheck/p5.c
@@ -11,6 +11,7 @@
 #include <asm/processor.h>
 #include <asm/mce.h>
 #include <asm/msr.h>
+#include <asm/pgtable.h>
 
 /* By default disabled */
 int mce_p5_enabled __read_mostly;
@@ -49,7 +50,9 @@ void intel_p5_mcheck_init(struct cpuinfo_x86 *c)
 	if (!cpu_has(c, X86_FEATURE_MCE))
 		return;
 
+	pax_open_kernel();
 	machine_check_vector = pentium_machine_check;
+	pax_close_kernel();
 	/* Make sure the vector pointer is visible before we enable MCEs: */
 	wmb();
 
diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c
index 47a1870..8c019a7 100644
--- a/arch/x86/kernel/cpu/mcheck/therm_throt.c
+++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c
@@ -288,7 +288,7 @@ thermal_throttle_cpu_callback(struct notifier_block *nfb,
 	return notifier_from_errno(err);
 }
 
-static struct notifier_block thermal_throttle_cpu_notifier __cpuinitdata =
+static struct notifier_block thermal_throttle_cpu_notifier =
 {
 	.notifier_call = thermal_throttle_cpu_callback,
 };
diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c
index e9a701a..35317d6 100644
--- a/arch/x86/kernel/cpu/mcheck/winchip.c
+++ b/arch/x86/kernel/cpu/mcheck/winchip.c
@@ -10,6 +10,7 @@
 #include <asm/processor.h>
 #include <asm/mce.h>
 #include <asm/msr.h>
+#include <asm/pgtable.h>
 
 /* Machine check handler for WinChip C6: */
 static void winchip_machine_check(struct pt_regs *regs, long error_code)
@@ -23,7 +24,9 @@ void winchip_mcheck_init(struct cpuinfo_x86 *c)
 {
 	u32 lo, hi;
 
+	pax_open_kernel();
 	machine_check_vector = winchip_machine_check;
+	pax_close_kernel();
 	/* Make sure the vector pointer is visible before we enable MCEs: */
 	wmb();
 
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 726bf96..81f0526 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -62,7 +62,7 @@ static DEFINE_MUTEX(mtrr_mutex);
 u64 size_or_mask, size_and_mask;
 static bool mtrr_aps_delayed_init;
 
-static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM];
+static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM] __read_only;
 
 const struct mtrr_ops *mtrr_if;
 
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
index df5e41f..816c719 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
@@ -25,7 +25,7 @@ struct mtrr_ops {
 	int	(*validate_add_page)(unsigned long base, unsigned long size,
 				     unsigned int type);
 	int	(*have_wrcomb)(void);
-};
+} __do_const;
 
 extern int generic_get_free_region(unsigned long base, unsigned long size,
 				   int replace_reg);
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index bf0f01a..9adfee1 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1305,7 +1305,7 @@ static void __init pmu_check_apic(void)
 	pr_info("no hardware sampling interrupt available.\n");
 }
 
-static struct attribute_group x86_pmu_format_group = {
+static attribute_group_no_const x86_pmu_format_group = {
 	.name = "format",
 	.attrs = NULL,
 };
@@ -1374,7 +1374,7 @@ static struct attribute *events_attr[] = {
 	NULL,
 };
 
-static struct attribute_group x86_pmu_events_group = {
+static attribute_group_no_const x86_pmu_events_group = {
 	.name = "events",
 	.attrs = events_attr,
 };
@@ -1873,7 +1873,7 @@ static unsigned long get_segment_base(unsigned int segment)
 		if (idx > GDT_ENTRIES)
 			return 0;
 
-		desc = __this_cpu_ptr(&gdt_page.gdt[0]);
+		desc = get_cpu_gdt_table(smp_processor_id());
 	}
 
 	return get_desc_base(desc + idx);
@@ -1963,7 +1963,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
 			break;
 
 		perf_callchain_store(entry, frame.return_address);
-		fp = frame.next_frame;
+		fp = (const void __force_user *)frame.next_frame;
 	}
 }
 
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 4a0a462..be3b204 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -1994,10 +1994,10 @@ __init int intel_pmu_init(void)
 	 * v2 and above have a perf capabilities MSR
 	 */
 	if (version > 1) {
-		u64 capabilities;
+		u64 capabilities = x86_pmu.intel_cap.capabilities;
 
-		rdmsrl(MSR_IA32_PERF_CAPABILITIES, capabilities);
-		x86_pmu.intel_cap.capabilities = capabilities;
+		if (rdmsrl_safe(MSR_IA32_PERF_CAPABILITIES, &x86_pmu.intel_cap.capabilities))
+			x86_pmu.intel_cap.capabilities = capabilities;
 	}
 
 	intel_ds_init();
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 3e091f0..d2dc8d6 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -2428,7 +2428,7 @@ static void __init uncore_types_exit(struct intel_uncore_type **types)
 static int __init uncore_type_init(struct intel_uncore_type *type)
 {
 	struct intel_uncore_pmu *pmus;
-	struct attribute_group *attr_group;
+	attribute_group_no_const *attr_group;
 	struct attribute **attrs;
 	int i, j;
 
@@ -2826,7 +2826,7 @@ static int
 	return NOTIFY_OK;
 }
 
-static struct notifier_block uncore_cpu_nb __cpuinitdata = {
+static struct notifier_block uncore_cpu_nb = {
 	.notifier_call	= uncore_cpu_notifier,
 	/*
 	 * to migrate uncore events, our notifier should be executed
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index e68a455..975a932 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -428,7 +428,7 @@ struct intel_uncore_box {
 struct uncore_event_desc {
 	struct kobj_attribute attr;
 	const char *config;
-};
+} __do_const;
 
 #define INTEL_UNCORE_EVENT_DESC(_name, _config)			\
 {								\
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index 1e4dbcf..b9a34c2 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -171,7 +171,7 @@ static int __cpuinit cpuid_class_cpu_callback(struct notifier_block *nfb,
 	return notifier_from_errno(err);
 }
 
-static struct notifier_block __refdata cpuid_class_cpu_notifier =
+static struct notifier_block cpuid_class_cpu_notifier =
 {
 	.notifier_call = cpuid_class_cpu_callback,
 };
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 74467fe..18793d5 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -58,10 +58,8 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs)
 {
 #ifdef CONFIG_X86_32
 	struct pt_regs fixed_regs;
-#endif
 
-#ifdef CONFIG_X86_32
-	if (!user_mode_vm(regs)) {
+	if (!user_mode(regs)) {
 		crash_fixup_ss_esp(&fixed_regs, regs);
 		regs = &fixed_regs;
 	}
diff --git a/arch/x86/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c
index afa64ad..dce67dd 100644
--- a/arch/x86/kernel/crash_dump_64.c
+++ b/arch/x86/kernel/crash_dump_64.c
@@ -36,7 +36,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
 		return -ENOMEM;
 
 	if (userbuf) {
-		if (copy_to_user(buf, vaddr + offset, csize)) {
+		if (copy_to_user((char __force_user *)buf, vaddr + offset, csize)) {
 			iounmap(vaddr);
 			return -EFAULT;
 		}
diff --git a/arch/x86/kernel/doublefault_32.c b/arch/x86/kernel/doublefault_32.c
index 37250fe..bf2ec74 100644
--- a/arch/x86/kernel/doublefault_32.c
+++ b/arch/x86/kernel/doublefault_32.c
@@ -11,7 +11,7 @@
 
 #define DOUBLEFAULT_STACKSIZE (1024)
 static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
-#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
+#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2)
 
 #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)
 
@@ -21,7 +21,7 @@ static void doublefault_fn(void)
 	unsigned long gdt, tss;
 
 	store_gdt(&gdt_desc);
-	gdt = gdt_desc.address;
+	gdt = (unsigned long)gdt_desc.address;
 
 	printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size);
 
@@ -58,10 +58,10 @@ struct tss_struct doublefault_tss __cacheline_aligned = {
 		/* 0x2 bit is always set */
 		.flags		= X86_EFLAGS_SF | 0x2,
 		.sp		= STACK_START,
-		.es		= __USER_DS,
+		.es		= __KERNEL_DS,
 		.cs		= __KERNEL_CS,
 		.ss		= __KERNEL_DS,
-		.ds		= __USER_DS,
+		.ds		= __KERNEL_DS,
 		.fs		= __KERNEL_PERCPU,
 
 		.__cr3		= __pa_nodebug(swapper_pg_dir),
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index c8797d5..c605e53 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -2,6 +2,9 @@
  *  Copyright (C) 1991, 1992  Linus Torvalds
  *  Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
  */
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+#define __INCLUDED_BY_HIDESYM 1
+#endif
 #include <linux/kallsyms.h>
 #include <linux/kprobes.h>
 #include <linux/uaccess.h>
@@ -35,16 +38,14 @@ void printk_address(unsigned long address, int reliable)
 static void
 print_ftrace_graph_addr(unsigned long addr, void *data,
 			const struct stacktrace_ops *ops,
-			struct thread_info *tinfo, int *graph)
+			struct task_struct *task, int *graph)
 {
-	struct task_struct *task;
 	unsigned long ret_addr;
 	int index;
 
 	if (addr != (unsigned long)return_to_handler)
 		return;
 
-	task = tinfo->task;
 	index = task->curr_ret_stack;
 
 	if (!task->ret_stack || index < *graph)
@@ -61,7 +62,7 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
 static inline void
 print_ftrace_graph_addr(unsigned long addr, void *data,
 			const struct stacktrace_ops *ops,
-			struct thread_info *tinfo, int *graph)
+			struct task_struct *task, int *graph)
 { }
 #endif
 
@@ -72,10 +73,8 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
  * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack
  */
 
-static inline int valid_stack_ptr(struct thread_info *tinfo,
-			void *p, unsigned int size, void *end)
+static inline int valid_stack_ptr(void *t, void *p, unsigned int size, void *end)
 {
-	void *t = tinfo;
 	if (end) {
 		if (p < end && p >= (end-THREAD_SIZE))
 			return 1;
@@ -86,14 +85,14 @@ static inline int valid_stack_ptr(struct thread_info *tinfo,
 }
 
 unsigned long
-print_context_stack(struct thread_info *tinfo,
+print_context_stack(struct task_struct *task, void *stack_start,
 		unsigned long *stack, unsigned long bp,
 		const struct stacktrace_ops *ops, void *data,
 		unsigned long *end, int *graph)
 {
 	struct stack_frame *frame = (struct stack_frame *)bp;
 
-	while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) {
+	while (valid_stack_ptr(stack_start, stack, sizeof(*stack), end)) {
 		unsigned long addr;
 
 		addr = *stack;
@@ -105,7 +104,7 @@ print_context_stack(struct thread_info *tinfo,
 			} else {
 				ops->address(data, addr, 0);
 			}
-			print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
+			print_ftrace_graph_addr(addr, data, ops, task, graph);
 		}
 		stack++;
 	}
@@ -114,7 +113,7 @@ print_context_stack(struct thread_info *tinfo,
 EXPORT_SYMBOL_GPL(print_context_stack);
 
 unsigned long
-print_context_stack_bp(struct thread_info *tinfo,
+print_context_stack_bp(struct task_struct *task, void *stack_start,
 		       unsigned long *stack, unsigned long bp,
 		       const struct stacktrace_ops *ops, void *data,
 		       unsigned long *end, int *graph)
@@ -122,7 +121,7 @@ print_context_stack_bp(struct thread_info *tinfo,
 	struct stack_frame *frame = (struct stack_frame *)bp;
 	unsigned long *ret_addr = &frame->return_address;
 
-	while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) {
+	while (valid_stack_ptr(stack_start, ret_addr, sizeof(*ret_addr), end)) {
 		unsigned long addr = *ret_addr;
 
 		if (!__kernel_text_address(addr))
@@ -131,7 +130,7 @@ print_context_stack_bp(struct thread_info *tinfo,
 		ops->address(data, addr, 1);
 		frame = frame->next_frame;
 		ret_addr = &frame->return_address;
-		print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
+		print_ftrace_graph_addr(addr, data, ops, task, graph);
 	}
 
 	return (unsigned long)frame;
@@ -189,7 +188,7 @@ void dump_stack(void)
 
 	bp = stack_frame(current, NULL);
 	printk("Pid: %d, comm: %.20s %s %s %.*s\n",
-		current->pid, current->comm, print_tainted(),
+		task_pid_nr(current), current->comm, print_tainted(),
 		init_utsname()->release,
 		(int)strcspn(init_utsname()->version, " "),
 		init_utsname()->version);
@@ -225,6 +224,8 @@ unsigned __kprobes long oops_begin(void)
 }
 EXPORT_SYMBOL_GPL(oops_begin);
 
+extern void gr_handle_kernel_exploit(void);
+
 void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 {
 	if (regs && kexec_should_crash(current))
@@ -246,7 +247,10 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 		panic("Fatal exception in interrupt");
 	if (panic_on_oops)
 		panic("Fatal exception");
-	do_exit(signr);
+
+	gr_handle_kernel_exploit();
+
+	do_group_exit(signr);
 }
 
 int __kprobes __die(const char *str, struct pt_regs *regs, long err)
@@ -274,7 +278,7 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
 	print_modules();
 	show_regs(regs);
 #ifdef CONFIG_X86_32
-	if (user_mode_vm(regs)) {
+	if (user_mode(regs)) {
 		sp = regs->sp;
 		ss = regs->ss & 0xffff;
 	} else {
@@ -302,7 +306,7 @@ void die(const char *str, struct pt_regs *regs, long err)
 	unsigned long flags = oops_begin();
 	int sig = SIGSEGV;
 
-	if (!user_mode_vm(regs))
+	if (!user_mode(regs))
 		report_bug(regs->ip, regs);
 
 	if (__die(str, regs, err))
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index 1038a41..db2c12b 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -38,15 +38,13 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 		bp = stack_frame(task, regs);
 
 	for (;;) {
-		struct thread_info *context;
+		void *stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
 
-		context = (struct thread_info *)
-			((unsigned long)stack & (~(THREAD_SIZE - 1)));
-		bp = ops->walk_stack(context, stack, bp, ops, data, NULL, &graph);
+		bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph);
 
-		stack = (unsigned long *)context->previous_esp;
-		if (!stack)
+		if (stack_start == task_stack_page(task))
 			break;
+		stack = *(unsigned long **)stack_start;
 		if (ops->stack(data, "IRQ") < 0)
 			break;
 		touch_nmi_watchdog();
@@ -86,7 +84,7 @@ void show_regs(struct pt_regs *regs)
 {
 	int i;
 
-	__show_regs(regs, !user_mode_vm(regs));
+	__show_regs(regs, !user_mode(regs));
 
 	pr_emerg("Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n",
 		 TASK_COMM_LEN, current->comm, task_pid_nr(current),
@@ -95,21 +93,22 @@ void show_regs(struct pt_regs *regs)
 	 * When in-kernel, we also print out the stack and code at the
 	 * time of the fault..
 	 */
-	if (!user_mode_vm(regs)) {
+	if (!user_mode(regs)) {
 		unsigned int code_prologue = code_bytes * 43 / 64;
 		unsigned int code_len = code_bytes;
 		unsigned char c;
 		u8 *ip;
+		unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(0)[(0xffff & regs->cs) >> 3]);
 
 		pr_emerg("Stack:\n");
 		show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG);
 
 		pr_emerg("Code:");
 
-		ip = (u8 *)regs->ip - code_prologue;
+		ip = (u8 *)regs->ip - code_prologue + cs_base;
 		if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
 			/* try starting at IP */
-			ip = (u8 *)regs->ip;
+			ip = (u8 *)regs->ip + cs_base;
 			code_len = code_len - code_prologue + 1;
 		}
 		for (i = 0; i < code_len; i++, ip++) {
@@ -118,7 +117,7 @@ void show_regs(struct pt_regs *regs)
 				pr_cont("  Bad EIP value.");
 				break;
 			}
-			if (ip == (u8 *)regs->ip)
+			if (ip == (u8 *)regs->ip + cs_base)
 				pr_cont(" <%02x>", c);
 			else
 				pr_cont(" %02x", c);
@@ -131,6 +130,7 @@ int is_valid_bugaddr(unsigned long ip)
 {
 	unsigned short ud2;
 
+	ip = ktla_ktva(ip);
 	if (ip < PAGE_OFFSET)
 		return 0;
 	if (probe_kernel_address((unsigned short *)ip, ud2))
@@ -138,3 +138,15 @@ int is_valid_bugaddr(unsigned long ip)
 
 	return ud2 == 0x0b0f;
 }
+
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+void pax_check_alloca(unsigned long size)
+{
+	unsigned long sp = (unsigned long)&sp, stack_left;
+
+	/* all kernel stacks are of the same size */
+	stack_left = sp & (THREAD_SIZE - 1);
+	BUG_ON(stack_left < 256 || size >= stack_left - 256);
+}
+EXPORT_SYMBOL(pax_check_alloca);
+#endif
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index b653675..51cc8c0 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -119,9 +119,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 	unsigned long *irq_stack_end =
 		(unsigned long *)per_cpu(irq_stack_ptr, cpu);
 	unsigned used = 0;
-	struct thread_info *tinfo;
 	int graph = 0;
 	unsigned long dummy;
+	void *stack_start;
 
 	if (!task)
 		task = current;
@@ -142,10 +142,10 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 	 * current stack address. If the stacks consist of nested
 	 * exceptions
 	 */
-	tinfo = task_thread_info(task);
 	for (;;) {
 		char *id;
 		unsigned long *estack_end;
+
 		estack_end = in_exception_stack(cpu, (unsigned long)stack,
 						&used, &id);
 
@@ -153,7 +153,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 			if (ops->stack(data, id) < 0)
 				break;
 
-			bp = ops->walk_stack(tinfo, stack, bp, ops,
+			bp = ops->walk_stack(task, estack_end - EXCEPTION_STKSZ, stack, bp, ops,
 					     data, estack_end, &graph);
 			ops->stack(data, "<EOE>");
 			/*
@@ -161,6 +161,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 			 * second-to-last pointer (index -2 to end) in the
 			 * exception stack:
 			 */
+			if ((u16)estack_end[-1] != __KERNEL_DS)
+				goto out;
 			stack = (unsigned long *) estack_end[-2];
 			continue;
 		}
@@ -172,7 +174,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 			if (in_irq_stack(stack, irq_stack, irq_stack_end)) {
 				if (ops->stack(data, "IRQ") < 0)
 					break;
-				bp = ops->walk_stack(tinfo, stack, bp,
+				bp = ops->walk_stack(task, irq_stack, stack, bp,
 					ops, data, irq_stack_end, &graph);
 				/*
 				 * We link to the next stack (which would be
@@ -191,7 +193,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 	/*
 	 * This handles the process stack:
 	 */
-	bp = ops->walk_stack(tinfo, stack, bp, ops, data, NULL, &graph);
+	stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
+	bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph);
+out:
 	put_cpu();
 }
 EXPORT_SYMBOL(dump_trace);
@@ -249,7 +253,7 @@ void show_regs(struct pt_regs *regs)
 {
 	int i;
 	unsigned long sp;
-	const int cpu = smp_processor_id();
+	const int cpu = raw_smp_processor_id();
 	struct task_struct *cur = current;
 
 	sp = regs->sp;
@@ -304,3 +308,50 @@ int is_valid_bugaddr(unsigned long ip)
 
 	return ud2 == 0x0b0f;
 }
+
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+void pax_check_alloca(unsigned long size)
+{
+	unsigned long sp = (unsigned long)&sp, stack_start, stack_end;
+	unsigned cpu, used;
+	char *id;
+
+	/* check the process stack first */
+	stack_start = (unsigned long)task_stack_page(current);
+	stack_end = stack_start + THREAD_SIZE;
+	if (likely(stack_start <= sp && sp < stack_end)) {
+		unsigned long stack_left = sp & (THREAD_SIZE - 1);
+		BUG_ON(stack_left < 256 || size >= stack_left - 256);
+		return;
+	}
+
+	cpu = get_cpu();
+
+	/* check the irq stacks */
+	stack_end = (unsigned long)per_cpu(irq_stack_ptr, cpu);
+	stack_start = stack_end - IRQ_STACK_SIZE;
+	if (stack_start <= sp && sp < stack_end) {
+		unsigned long stack_left = sp & (IRQ_STACK_SIZE - 1);
+		put_cpu();
+		BUG_ON(stack_left < 256 || size >= stack_left - 256);
+		return;
+	}
+
+	/* check the exception stacks */
+	used = 0;
+	stack_end = (unsigned long)in_exception_stack(cpu, sp, &used, &id);
+	stack_start = stack_end - EXCEPTION_STKSZ;
+	if (stack_end && stack_start <= sp && sp < stack_end) {
+		unsigned long stack_left = sp & (EXCEPTION_STKSZ - 1);
+		put_cpu();
+		BUG_ON(stack_left < 256 || size >= stack_left - 256);
+		return;
+	}
+
+	put_cpu();
+
+	/* unknown stack */
+	BUG();
+}
+EXPORT_SYMBOL(pax_check_alloca);
+#endif
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 9b9f18b..9fcaa04 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -7,6 +7,7 @@
 #include <linux/pci_regs.h>
 #include <linux/pci_ids.h>
 #include <linux/errno.h>
+#include <linux/sched.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/fcntl.h>
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 8f3e2de..934870f 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -177,13 +177,153 @@
 	/*CFI_REL_OFFSET gs, PT_GS*/
 .endm
 .macro SET_KERNEL_GS reg
+
+#ifdef CONFIG_CC_STACKPROTECTOR
 	movl $(__KERNEL_STACK_CANARY), \reg
+#elif defined(CONFIG_PAX_MEMORY_UDEREF)
+	movl $(__USER_DS), \reg
+#else
+	xorl \reg, \reg
+#endif
+
 	movl \reg, %gs
 .endm
 
 #endif	/* CONFIG_X86_32_LAZY_GS */
 
-.macro SAVE_ALL
+.macro pax_enter_kernel
+#ifdef CONFIG_PAX_KERNEXEC
+	call pax_enter_kernel
+#endif
+.endm
+
+.macro pax_exit_kernel
+#ifdef CONFIG_PAX_KERNEXEC
+	call pax_exit_kernel
+#endif
+.endm
+
+#ifdef CONFIG_PAX_KERNEXEC
+ENTRY(pax_enter_kernel)
+#ifdef CONFIG_PARAVIRT
+	pushl %eax
+	pushl %ecx
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0)
+	mov %eax, %esi
+#else
+	mov %cr0, %esi
+#endif
+	bts $16, %esi
+	jnc 1f
+	mov %cs, %esi
+	cmp $__KERNEL_CS, %esi
+	jz 3f
+	ljmp $__KERNEL_CS, $3f
+1:	ljmp $__KERNEXEC_KERNEL_CS, $2f
+2:
+#ifdef CONFIG_PARAVIRT
+	mov %esi, %eax
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
+#else
+	mov %esi, %cr0
+#endif
+3:
+#ifdef CONFIG_PARAVIRT
+	popl %ecx
+	popl %eax
+#endif
+	ret
+ENDPROC(pax_enter_kernel)
+
+ENTRY(pax_exit_kernel)
+#ifdef CONFIG_PARAVIRT
+	pushl %eax
+	pushl %ecx
+#endif
+	mov %cs, %esi
+	cmp $__KERNEXEC_KERNEL_CS, %esi
+	jnz 2f
+#ifdef CONFIG_PARAVIRT
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0);
+	mov %eax, %esi
+#else
+	mov %cr0, %esi
+#endif
+	btr $16, %esi
+	ljmp $__KERNEL_CS, $1f
+1:
+#ifdef CONFIG_PARAVIRT
+	mov %esi, %eax
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0);
+#else
+	mov %esi, %cr0
+#endif
+2:
+#ifdef CONFIG_PARAVIRT
+	popl %ecx
+	popl %eax
+#endif
+	ret
+ENDPROC(pax_exit_kernel)
+#endif
+
+.macro pax_erase_kstack
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+	call pax_erase_kstack
+#endif
+.endm
+
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+/*
+ * ebp: thread_info
+ */
+ENTRY(pax_erase_kstack)
+	pushl %edi
+	pushl %ecx
+	pushl %eax
+
+	mov TI_lowest_stack(%ebp), %edi
+	mov $-0xBEEF, %eax
+	std
+
+1:	mov %edi, %ecx
+	and $THREAD_SIZE_asm - 1, %ecx
+	shr $2, %ecx
+	repne scasl
+	jecxz 2f
+
+	cmp $2*16, %ecx
+	jc 2f
+
+	mov $2*16, %ecx
+	repe scasl
+	jecxz 2f
+	jne 1b
+
+2:	cld
+	mov %esp, %ecx
+	sub %edi, %ecx
+
+	cmp $THREAD_SIZE_asm, %ecx
+	jb 3f
+	ud2
+3:
+
+	shr $2, %ecx
+	rep stosl
+
+	mov TI_task_thread_sp0(%ebp), %edi
+	sub $128, %edi
+	mov %edi, TI_lowest_stack(%ebp)
+
+	popl %eax
+	popl %ecx
+	popl %edi
+	ret
+ENDPROC(pax_erase_kstack)
+#endif
+
+.macro __SAVE_ALL _DS
 	cld
 	PUSH_GS
 	pushl_cfi %fs
@@ -206,7 +346,7 @@
 	CFI_REL_OFFSET ecx, 0
 	pushl_cfi %ebx
 	CFI_REL_OFFSET ebx, 0
-	movl $(__USER_DS), %edx
+	movl $\_DS, %edx
 	movl %edx, %ds
 	movl %edx, %es
 	movl $(__KERNEL_PERCPU), %edx
@@ -214,6 +354,15 @@
 	SET_KERNEL_GS %edx
 .endm
 
+.macro SAVE_ALL
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	__SAVE_ALL __KERNEL_DS
+	pax_enter_kernel
+#else
+	__SAVE_ALL __USER_DS
+#endif
+.endm
+
 .macro RESTORE_INT_REGS
 	popl_cfi %ebx
 	CFI_RESTORE ebx
@@ -297,7 +446,7 @@ ENTRY(ret_from_fork)
 	popfl_cfi
 	jmp syscall_exit
 	CFI_ENDPROC
-END(ret_from_fork)
+ENDPROC(ret_from_fork)
 
 ENTRY(ret_from_kernel_thread)
 	CFI_STARTPROC
@@ -344,7 +493,15 @@ ret_from_intr:
 	andl $SEGMENT_RPL_MASK, %eax
 #endif
 	cmpl $USER_RPL, %eax
+
+#ifdef CONFIG_PAX_KERNEXEC
+	jae resume_userspace
+
+	pax_exit_kernel
+	jmp resume_kernel
+#else
 	jb resume_kernel		# not returning to v8086 or userspace
+#endif
 
 ENTRY(resume_userspace)
 	LOCKDEP_SYS_EXIT
@@ -356,8 +513,8 @@ ENTRY(resume_userspace)
 	andl $_TIF_WORK_MASK, %ecx	# is there any work to be done on
 					# int/exception return?
 	jne work_pending
-	jmp restore_all
-END(ret_from_exception)
+	jmp restore_all_pax
+ENDPROC(ret_from_exception)
 
 #ifdef CONFIG_PREEMPT
 ENTRY(resume_kernel)
@@ -372,7 +529,7 @@ need_resched:
 	jz restore_all
 	call preempt_schedule_irq
 	jmp need_resched
-END(resume_kernel)
+ENDPROC(resume_kernel)
 #endif
 	CFI_ENDPROC
 /*
@@ -406,30 +563,45 @@ sysenter_past_esp:
 	/*CFI_REL_OFFSET cs, 0*/
 	/*
 	 * Push current_thread_info()->sysenter_return to the stack.
-	 * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
-	 * pushed above; +8 corresponds to copy_thread's esp0 setting.
 	 */
-	pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp)
+	pushl_cfi $0
 	CFI_REL_OFFSET eip, 0
 
 	pushl_cfi %eax
 	SAVE_ALL
+	GET_THREAD_INFO(%ebp)
+	movl TI_sysenter_return(%ebp),%ebp
+	movl %ebp,PT_EIP(%esp)
 	ENABLE_INTERRUPTS(CLBR_NONE)
 
 /*
  * Load the potential sixth argument from user stack.
  * Careful about security.
  */
+	movl PT_OLDESP(%esp),%ebp
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	mov PT_OLDSS(%esp),%ds
+1:	movl %ds:(%ebp),%ebp
+	push %ss
+	pop %ds
+#else
 	cmpl $__PAGE_OFFSET-3,%ebp
 	jae syscall_fault
 	ASM_STAC
 1:	movl (%ebp),%ebp
 	ASM_CLAC
+#endif
+
 	movl %ebp,PT_EBP(%esp)
 	_ASM_EXTABLE(1b,syscall_fault)
 
 	GET_THREAD_INFO(%ebp)
 
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
 	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp)
 	jnz sysenter_audit
 sysenter_do_call:
@@ -444,12 +616,24 @@ sysenter_do_call:
 	testl $_TIF_ALLWORK_MASK, %ecx
 	jne sysexit_audit
 sysenter_exit:
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	pushl_cfi %eax
+	movl %esp, %eax
+	call pax_randomize_kstack
+	popl_cfi %eax
+#endif
+
+	pax_erase_kstack
+
 /* if something modifies registers it must also disable sysexit */
 	movl PT_EIP(%esp), %edx
 	movl PT_OLDESP(%esp), %ecx
 	xorl %ebp,%ebp
 	TRACE_IRQS_ON
 1:	mov  PT_FS(%esp), %fs
+2:	mov  PT_DS(%esp), %ds
+3:	mov  PT_ES(%esp), %es
 	PTGS_TO_GS
 	ENABLE_INTERRUPTS_SYSEXIT
 
@@ -466,6 +650,9 @@ sysenter_audit:
 	movl %eax,%edx			/* 2nd arg: syscall number */
 	movl $AUDIT_ARCH_I386,%eax	/* 1st arg: audit arch */
 	call __audit_syscall_entry
+
+	pax_erase_kstack
+
 	pushl_cfi %ebx
 	movl PT_EAX(%esp),%eax		/* reload syscall number */
 	jmp sysenter_do_call
@@ -491,10 +678,16 @@ sysexit_audit:
 
 	CFI_ENDPROC
 .pushsection .fixup,"ax"
-2:	movl $0,PT_FS(%esp)
+4:	movl $0,PT_FS(%esp)
+	jmp 1b
+5:	movl $0,PT_DS(%esp)
+	jmp 1b
+6:	movl $0,PT_ES(%esp)
 	jmp 1b
 .popsection
-	_ASM_EXTABLE(1b,2b)
+	_ASM_EXTABLE(1b,4b)
+	_ASM_EXTABLE(2b,5b)
+	_ASM_EXTABLE(3b,6b)
 	PTGS_TO_GS_EX
 ENDPROC(ia32_sysenter_target)
 
@@ -509,6 +702,11 @@ ENTRY(system_call)
 	pushl_cfi %eax			# save orig_eax
 	SAVE_ALL
 	GET_THREAD_INFO(%ebp)
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
 					# system call tracing in operation / emulation
 	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp)
 	jnz syscall_trace_entry
@@ -527,6 +725,15 @@ syscall_exit:
 	testl $_TIF_ALLWORK_MASK, %ecx	# current->work
 	jne syscall_exit_work
 
+restore_all_pax:
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	movl %esp, %eax
+	call pax_randomize_kstack
+#endif
+
+	pax_erase_kstack
+
 restore_all:
 	TRACE_IRQS_IRET
 restore_all_notrace:
@@ -583,14 +790,34 @@ ldt_ss:
  * compensating for the offset by changing to the ESPFIX segment with
  * a base address that matches for the difference.
  */
-#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + (GDT_ENTRY_ESPFIX_SS * 8)
+#define GDT_ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)(%ebx)
 	mov %esp, %edx			/* load kernel esp */
 	mov PT_OLDESP(%esp), %eax	/* load userspace esp */
 	mov %dx, %ax			/* eax: new kernel esp */
 	sub %eax, %edx			/* offset (low word is 0) */
+#ifdef CONFIG_SMP
+	movl PER_CPU_VAR(cpu_number), %ebx
+	shll $PAGE_SHIFT_asm, %ebx
+	addl $cpu_gdt_table, %ebx
+#else
+	movl $cpu_gdt_table, %ebx
+#endif
 	shr $16, %edx
-	mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */
-	mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */
+
+#ifdef CONFIG_PAX_KERNEXEC
+	mov %cr0, %esi
+	btr $16, %esi
+	mov %esi, %cr0
+#endif
+
+	mov %dl, 4 + GDT_ESPFIX_SS /* bits 16..23 */
+	mov %dh, 7 + GDT_ESPFIX_SS /* bits 24..31 */
+
+#ifdef CONFIG_PAX_KERNEXEC
+	bts $16, %esi
+	mov %esi, %cr0
+#endif
+
 	pushl_cfi $__ESPFIX_SS
 	pushl_cfi %eax			/* new kernel esp */
 	/* Disable interrupts, but do not irqtrace this section: we
@@ -619,20 +846,18 @@ work_resched:
 	movl TI_flags(%ebp), %ecx
 	andl $_TIF_WORK_MASK, %ecx	# is there any work to be done other
 					# than syscall tracing?
-	jz restore_all
+	jz restore_all_pax
 	testb $_TIF_NEED_RESCHED, %cl
 	jnz work_resched
 
 work_notifysig:				# deal with pending signals and
 					# notify-resume requests
+	movl %esp, %eax
 #ifdef CONFIG_VM86
 	testl $X86_EFLAGS_VM, PT_EFLAGS(%esp)
-	movl %esp, %eax
 	jne work_notifysig_v86		# returning to kernel-space or
 					# vm86-space
 1:
-#else
-	movl %esp, %eax
 #endif
 	TRACE_IRQS_ON
 	ENABLE_INTERRUPTS(CLBR_NONE)
@@ -653,7 +878,7 @@ work_notifysig_v86:
 	movl %eax, %esp
 	jmp 1b
 #endif
-END(work_pending)
+ENDPROC(work_pending)
 
 	# perform syscall exit tracing
 	ALIGN
@@ -661,11 +886,14 @@ syscall_trace_entry:
 	movl $-ENOSYS,PT_EAX(%esp)
 	movl %esp, %eax
 	call syscall_trace_enter
+
+	pax_erase_kstack
+
 	/* What it returned is what we'll actually use.  */
 	cmpl $(NR_syscalls), %eax
 	jnae syscall_call
 	jmp syscall_exit
-END(syscall_trace_entry)
+ENDPROC(syscall_trace_entry)
 
 	# perform syscall exit tracing
 	ALIGN
@@ -678,21 +906,25 @@ syscall_exit_work:
 	movl %esp, %eax
 	call syscall_trace_leave
 	jmp resume_userspace
-END(syscall_exit_work)
+ENDPROC(syscall_exit_work)
 	CFI_ENDPROC
 
 	RING0_INT_FRAME			# can't unwind into user space anyway
 syscall_fault:
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	push %ss
+	pop %ds
+#endif
 	ASM_CLAC
 	GET_THREAD_INFO(%ebp)
 	movl $-EFAULT,PT_EAX(%esp)
 	jmp resume_userspace
-END(syscall_fault)
+ENDPROC(syscall_fault)
 
 syscall_badsys:
 	movl $-ENOSYS,PT_EAX(%esp)
 	jmp resume_userspace
-END(syscall_badsys)
+ENDPROC(syscall_badsys)
 	CFI_ENDPROC
 /*
  * End of kprobes section
@@ -708,8 +940,15 @@ END(syscall_badsys)
  * normal stack and adjusts ESP with the matching offset.
  */
 	/* fixup the stack */
-	mov GDT_ESPFIX_SS + 4, %al /* bits 16..23 */
-	mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */
+#ifdef CONFIG_SMP
+	movl PER_CPU_VAR(cpu_number), %ebx
+	shll $PAGE_SHIFT_asm, %ebx
+	addl $cpu_gdt_table, %ebx
+#else
+	movl $cpu_gdt_table, %ebx
+#endif
+	mov 4 + GDT_ESPFIX_SS, %al /* bits 16..23 */
+	mov 7 + GDT_ESPFIX_SS, %ah /* bits 24..31 */
 	shl $16, %eax
 	addl %esp, %eax			/* the adjusted stack pointer */
 	pushl_cfi $__KERNEL_DS
@@ -762,7 +1001,7 @@ vector=vector+1
   .endr
 2:	jmp common_interrupt
 .endr
-END(irq_entries_start)
+ENDPROC(irq_entries_start)
 
 .previous
 END(interrupt)
@@ -813,7 +1052,7 @@ ENTRY(coprocessor_error)
 	pushl_cfi $do_coprocessor_error
 	jmp error_code
 	CFI_ENDPROC
-END(coprocessor_error)
+ENDPROC(coprocessor_error)
 
 ENTRY(simd_coprocessor_error)
 	RING0_INT_FRAME
@@ -835,7 +1074,7 @@ ENTRY(simd_coprocessor_error)
 #endif
 	jmp error_code
 	CFI_ENDPROC
-END(simd_coprocessor_error)
+ENDPROC(simd_coprocessor_error)
 
 ENTRY(device_not_available)
 	RING0_INT_FRAME
@@ -844,18 +1083,18 @@ ENTRY(device_not_available)
 	pushl_cfi $do_device_not_available
 	jmp error_code
 	CFI_ENDPROC
-END(device_not_available)
+ENDPROC(device_not_available)
 
 #ifdef CONFIG_PARAVIRT
 ENTRY(native_iret)
 	iret
 	_ASM_EXTABLE(native_iret, iret_exc)
-END(native_iret)
+ENDPROC(native_iret)
 
 ENTRY(native_irq_enable_sysexit)
 	sti
 	sysexit
-END(native_irq_enable_sysexit)
+ENDPROC(native_irq_enable_sysexit)
 #endif
 
 ENTRY(overflow)
@@ -865,7 +1104,7 @@ ENTRY(overflow)
 	pushl_cfi $do_overflow
 	jmp error_code
 	CFI_ENDPROC
-END(overflow)
+ENDPROC(overflow)
 
 ENTRY(bounds)
 	RING0_INT_FRAME
@@ -874,7 +1113,7 @@ ENTRY(bounds)
 	pushl_cfi $do_bounds
 	jmp error_code
 	CFI_ENDPROC
-END(bounds)
+ENDPROC(bounds)
 
 ENTRY(invalid_op)
 	RING0_INT_FRAME
@@ -883,7 +1122,7 @@ ENTRY(invalid_op)
 	pushl_cfi $do_invalid_op
 	jmp error_code
 	CFI_ENDPROC
-END(invalid_op)
+ENDPROC(invalid_op)
 
 ENTRY(coprocessor_segment_overrun)
 	RING0_INT_FRAME
@@ -892,7 +1131,7 @@ ENTRY(coprocessor_segment_overrun)
 	pushl_cfi $do_coprocessor_segment_overrun
 	jmp error_code
 	CFI_ENDPROC
-END(coprocessor_segment_overrun)
+ENDPROC(coprocessor_segment_overrun)
 
 ENTRY(invalid_TSS)
 	RING0_EC_FRAME
@@ -900,7 +1139,7 @@ ENTRY(invalid_TSS)
 	pushl_cfi $do_invalid_TSS
 	jmp error_code
 	CFI_ENDPROC
-END(invalid_TSS)
+ENDPROC(invalid_TSS)
 
 ENTRY(segment_not_present)
 	RING0_EC_FRAME
@@ -908,7 +1147,7 @@ ENTRY(segment_not_present)
 	pushl_cfi $do_segment_not_present
 	jmp error_code
 	CFI_ENDPROC
-END(segment_not_present)
+ENDPROC(segment_not_present)
 
 ENTRY(stack_segment)
 	RING0_EC_FRAME
@@ -916,7 +1155,7 @@ ENTRY(stack_segment)
 	pushl_cfi $do_stack_segment
 	jmp error_code
 	CFI_ENDPROC
-END(stack_segment)
+ENDPROC(stack_segment)
 
 ENTRY(alignment_check)
 	RING0_EC_FRAME
@@ -924,7 +1163,7 @@ ENTRY(alignment_check)
 	pushl_cfi $do_alignment_check
 	jmp error_code
 	CFI_ENDPROC
-END(alignment_check)
+ENDPROC(alignment_check)
 
 ENTRY(divide_error)
 	RING0_INT_FRAME
@@ -933,7 +1172,7 @@ ENTRY(divide_error)
 	pushl_cfi $do_divide_error
 	jmp error_code
 	CFI_ENDPROC
-END(divide_error)
+ENDPROC(divide_error)
 
 #ifdef CONFIG_X86_MCE
 ENTRY(machine_check)
@@ -943,7 +1182,7 @@ ENTRY(machine_check)
 	pushl_cfi machine_check_vector
 	jmp error_code
 	CFI_ENDPROC
-END(machine_check)
+ENDPROC(machine_check)
 #endif
 
 ENTRY(spurious_interrupt_bug)
@@ -953,7 +1192,7 @@ ENTRY(spurious_interrupt_bug)
 	pushl_cfi $do_spurious_interrupt_bug
 	jmp error_code
 	CFI_ENDPROC
-END(spurious_interrupt_bug)
+ENDPROC(spurious_interrupt_bug)
 /*
  * End of kprobes section
  */
@@ -1063,7 +1302,7 @@ BUILD_INTERRUPT3(hyperv_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
 
 ENTRY(mcount)
 	ret
-END(mcount)
+ENDPROC(mcount)
 
 ENTRY(ftrace_caller)
 	cmpl $0, function_trace_stop
@@ -1096,7 +1335,7 @@ ftrace_graph_call:
 .globl ftrace_stub
 ftrace_stub:
 	ret
-END(ftrace_caller)
+ENDPROC(ftrace_caller)
 
 ENTRY(ftrace_regs_caller)
 	pushf	/* push flags before compare (in cs location) */
@@ -1197,7 +1436,7 @@ trace:
 	popl %ecx
 	popl %eax
 	jmp ftrace_stub
-END(mcount)
+ENDPROC(mcount)
 #endif /* CONFIG_DYNAMIC_FTRACE */
 #endif /* CONFIG_FUNCTION_TRACER */
 
@@ -1215,7 +1454,7 @@ ENTRY(ftrace_graph_caller)
 	popl %ecx
 	popl %eax
 	ret
-END(ftrace_graph_caller)
+ENDPROC(ftrace_graph_caller)
 
 .globl return_to_handler
 return_to_handler:
@@ -1271,15 +1510,18 @@ error_code:
 	movl $-1, PT_ORIG_EAX(%esp)	# no syscall to restart
 	REG_TO_PTGS %ecx
 	SET_KERNEL_GS %ecx
-	movl $(__USER_DS), %ecx
+	movl $(__KERNEL_DS), %ecx
 	movl %ecx, %ds
 	movl %ecx, %es
+
+	pax_enter_kernel
+
 	TRACE_IRQS_OFF
 	movl %esp,%eax			# pt_regs pointer
 	call *%edi
 	jmp ret_from_exception
 	CFI_ENDPROC
-END(page_fault)
+ENDPROC(page_fault)
 
 /*
  * Debug traps and NMI can happen at the one SYSENTER instruction
@@ -1322,7 +1564,7 @@ debug_stack_correct:
 	call do_debug
 	jmp ret_from_exception
 	CFI_ENDPROC
-END(debug)
+ENDPROC(debug)
 
 /*
  * NMI is doubly nasty. It can happen _while_ we're handling
@@ -1360,6 +1602,9 @@ nmi_stack_correct:
 	xorl %edx,%edx		# zero error code
 	movl %esp,%eax		# pt_regs pointer
 	call do_nmi
+
+	pax_exit_kernel
+
 	jmp restore_all_notrace
 	CFI_ENDPROC
 
@@ -1396,12 +1641,15 @@ nmi_espfix_stack:
 	FIXUP_ESPFIX_STACK		# %eax == %esp
 	xorl %edx,%edx			# zero error code
 	call do_nmi
+
+	pax_exit_kernel
+
 	RESTORE_REGS
 	lss 12+4(%esp), %esp		# back to espfix stack
 	CFI_ADJUST_CFA_OFFSET -24
 	jmp irq_return
 	CFI_ENDPROC
-END(nmi)
+ENDPROC(nmi)
 
 ENTRY(int3)
 	RING0_INT_FRAME
@@ -1414,14 +1662,14 @@ ENTRY(int3)
 	call do_int3
 	jmp ret_from_exception
 	CFI_ENDPROC
-END(int3)
+ENDPROC(int3)
 
 ENTRY(general_protection)
 	RING0_EC_FRAME
 	pushl_cfi $do_general_protection
 	jmp error_code
 	CFI_ENDPROC
-END(general_protection)
+ENDPROC(general_protection)
 
 #ifdef CONFIG_KVM_GUEST
 ENTRY(async_page_fault)
@@ -1430,7 +1678,7 @@ ENTRY(async_page_fault)
 	pushl_cfi $do_async_page_fault
 	jmp error_code
 	CFI_ENDPROC
-END(async_page_fault)
+ENDPROC(async_page_fault)
 #endif
 
 /*
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index c1d01e6..5625dce 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -59,6 +59,8 @@
 #include <asm/context_tracking.h>
 #include <asm/smap.h>
 #include <linux/err.h>
+#include <asm/pgtable.h>
+#include <asm/alternative-asm.h>
 
 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this.  */
 #include <linux/elf-em.h>
@@ -80,8 +82,9 @@
 #ifdef CONFIG_DYNAMIC_FTRACE
 
 ENTRY(function_hook)
+	pax_force_retaddr
 	retq
-END(function_hook)
+ENDPROC(function_hook)
 
 /* skip is set if stack has been adjusted */
 .macro ftrace_caller_setup skip=0
@@ -122,8 +125,9 @@ GLOBAL(ftrace_graph_call)
 #endif
 
 GLOBAL(ftrace_stub)
+	pax_force_retaddr
 	retq
-END(ftrace_caller)
+ENDPROC(ftrace_caller)
 
 ENTRY(ftrace_regs_caller)
 	/* Save the current flags before compare (in SS location)*/
@@ -191,7 +195,7 @@ ftrace_restore_flags:
 	popfq
 	jmp  ftrace_stub
 
-END(ftrace_regs_caller)
+ENDPROC(ftrace_regs_caller)
 
 
 #else /* ! CONFIG_DYNAMIC_FTRACE */
@@ -212,6 +216,7 @@ ENTRY(function_hook)
 #endif
 
 GLOBAL(ftrace_stub)
+	pax_force_retaddr
 	retq
 
 trace:
@@ -225,12 +230,13 @@ trace:
 #endif
 	subq $MCOUNT_INSN_SIZE, %rdi
 
+	pax_force_fptr ftrace_trace_function
 	call   *ftrace_trace_function
 
 	MCOUNT_RESTORE_FRAME
 
 	jmp ftrace_stub
-END(function_hook)
+ENDPROC(function_hook)
 #endif /* CONFIG_DYNAMIC_FTRACE */
 #endif /* CONFIG_FUNCTION_TRACER */
 
@@ -252,8 +258,9 @@ ENTRY(ftrace_graph_caller)
 
 	MCOUNT_RESTORE_FRAME
 
+	pax_force_retaddr
 	retq
-END(ftrace_graph_caller)
+ENDPROC(ftrace_graph_caller)
 
 GLOBAL(return_to_handler)
 	subq  $24, %rsp
@@ -269,7 +276,9 @@ GLOBAL(return_to_handler)
 	movq 8(%rsp), %rdx
 	movq (%rsp), %rax
 	addq $24, %rsp
+	pax_force_fptr %rdi
 	jmp *%rdi
+ENDPROC(return_to_handler)
 #endif
 
 
@@ -284,6 +293,282 @@ ENTRY(native_usergs_sysret64)
 ENDPROC(native_usergs_sysret64)
 #endif /* CONFIG_PARAVIRT */
 
+	.macro ljmpq sel, off
+#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) || defined (CONFIG_MATOM)
+	.byte 0x48; ljmp *1234f(%rip)
+	.pushsection .rodata
+	.align 16
+	1234: .quad \off; .word \sel
+	.popsection
+#else
+	pushq $\sel
+	pushq $\off
+	lretq
+#endif
+	.endm
+
+	.macro pax_enter_kernel
+	pax_set_fptr_mask
+#ifdef CONFIG_PAX_KERNEXEC
+	call pax_enter_kernel
+#endif
+	.endm
+
+	.macro pax_exit_kernel
+#ifdef CONFIG_PAX_KERNEXEC
+	call pax_exit_kernel
+#endif
+	.endm
+
+#ifdef CONFIG_PAX_KERNEXEC
+ENTRY(pax_enter_kernel)
+	pushq %rdi
+
+#ifdef CONFIG_PARAVIRT
+	PV_SAVE_REGS(CLBR_RDI)
+#endif
+
+	GET_CR0_INTO_RDI
+	bts $16,%rdi
+	jnc 3f
+	mov %cs,%edi
+	cmp $__KERNEL_CS,%edi
+	jnz 2f
+1:
+
+#ifdef CONFIG_PARAVIRT
+	PV_RESTORE_REGS(CLBR_RDI)
+#endif
+
+	popq %rdi
+	pax_force_retaddr
+	retq
+
+2:	ljmpq __KERNEL_CS,1b
+3:	ljmpq __KERNEXEC_KERNEL_CS,4f
+4:	SET_RDI_INTO_CR0
+	jmp 1b
+ENDPROC(pax_enter_kernel)
+
+ENTRY(pax_exit_kernel)
+	pushq %rdi
+
+#ifdef CONFIG_PARAVIRT
+	PV_SAVE_REGS(CLBR_RDI)
+#endif
+
+	mov %cs,%rdi
+	cmp $__KERNEXEC_KERNEL_CS,%edi
+	jz 2f
+	GET_CR0_INTO_RDI
+	bts $16,%rdi
+	jnc 4f
+1:
+
+#ifdef CONFIG_PARAVIRT
+	PV_RESTORE_REGS(CLBR_RDI);
+#endif
+
+	popq %rdi
+	pax_force_retaddr
+	retq
+
+2:	GET_CR0_INTO_RDI
+	btr $16,%rdi
+	jnc 4f
+	ljmpq __KERNEL_CS,3f
+3:	SET_RDI_INTO_CR0
+	jmp 1b
+4:	ud2
+	jmp 4b
+ENDPROC(pax_exit_kernel)
+#endif
+
+	.macro pax_enter_kernel_user
+	pax_set_fptr_mask
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	call pax_enter_kernel_user
+#endif
+	.endm
+
+	.macro pax_exit_kernel_user
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	call pax_exit_kernel_user
+#endif
+#ifdef CONFIG_PAX_RANDKSTACK
+	pushq %rax
+	call pax_randomize_kstack
+	popq %rax
+#endif
+	.endm
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+ENTRY(pax_enter_kernel_user)
+	pushq %rdi
+	pushq %rbx
+
+#ifdef CONFIG_PARAVIRT
+	PV_SAVE_REGS(CLBR_RDI)
+#endif
+
+	GET_CR3_INTO_RDI
+	mov %rdi,%rbx
+	add $__START_KERNEL_map,%rbx
+	sub phys_base(%rip),%rbx
+
+#ifdef CONFIG_PARAVIRT
+	pushq %rdi
+	cmpl $0, pv_info+PARAVIRT_enabled
+	jz 1f
+	i = 0
+	.rept USER_PGD_PTRS
+	mov i*8(%rbx),%rsi
+	mov $0,%sil
+	lea i*8(%rbx),%rdi
+	call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
+	i = i + 1
+	.endr
+	jmp 2f
+1:
+#endif
+
+	i = 0
+	.rept USER_PGD_PTRS
+	movb $0,i*8(%rbx)
+	i = i + 1
+	.endr
+
+#ifdef CONFIG_PARAVIRT
+2:	popq %rdi
+#endif
+	SET_RDI_INTO_CR3
+
+#ifdef CONFIG_PAX_KERNEXEC
+	GET_CR0_INTO_RDI
+	bts $16,%rdi
+	SET_RDI_INTO_CR0
+#endif
+
+#ifdef CONFIG_PARAVIRT
+	PV_RESTORE_REGS(CLBR_RDI)
+#endif
+
+	popq %rbx
+	popq %rdi
+	pax_force_retaddr
+	retq
+ENDPROC(pax_enter_kernel_user)
+
+ENTRY(pax_exit_kernel_user)
+	push %rdi
+
+#ifdef CONFIG_PARAVIRT
+	pushq %rbx
+	PV_SAVE_REGS(CLBR_RDI)
+#endif
+
+#ifdef CONFIG_PAX_KERNEXEC
+	GET_CR0_INTO_RDI
+	btr $16,%rdi
+	jnc 3f
+	SET_RDI_INTO_CR0
+#endif
+
+	GET_CR3_INTO_RDI
+	add $__START_KERNEL_map,%rdi
+	sub phys_base(%rip),%rdi
+
+#ifdef CONFIG_PARAVIRT
+	cmpl $0, pv_info+PARAVIRT_enabled
+	jz 1f
+	mov %rdi,%rbx
+	i = 0
+	.rept USER_PGD_PTRS
+	mov i*8(%rbx),%rsi
+	mov $0x67,%sil
+	lea i*8(%rbx),%rdi
+	call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
+	i = i + 1
+	.endr
+	jmp 2f
+1:
+#endif
+
+	i = 0
+	.rept USER_PGD_PTRS
+	movb $0x67,i*8(%rdi)
+	i = i + 1
+	.endr
+
+#ifdef CONFIG_PARAVIRT
+2:	PV_RESTORE_REGS(CLBR_RDI)
+	popq %rbx
+#endif
+
+	popq %rdi
+	pax_force_retaddr
+	retq
+3:	ud2
+	jmp 3b
+ENDPROC(pax_exit_kernel_user)
+#endif
+
+.macro pax_erase_kstack
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+	call pax_erase_kstack
+#endif
+.endm
+
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+ENTRY(pax_erase_kstack)
+	pushq %rdi
+	pushq %rcx
+	pushq %rax
+	pushq %r11
+
+	GET_THREAD_INFO(%r11)
+	mov TI_lowest_stack(%r11), %rdi
+	mov $-0xBEEF, %rax
+	std
+
+1:	mov %edi, %ecx
+	and $THREAD_SIZE_asm - 1, %ecx
+	shr $3, %ecx
+	repne scasq
+	jecxz 2f
+
+	cmp $2*8, %ecx
+	jc 2f
+
+	mov $2*8, %ecx
+	repe scasq
+	jecxz 2f
+	jne 1b
+
+2:	cld
+	mov %esp, %ecx
+	sub %edi, %ecx
+
+	cmp $THREAD_SIZE_asm, %rcx
+	jb 3f
+	ud2
+3:
+
+	shr $3, %ecx
+	rep stosq
+
+	mov TI_task_thread_sp0(%r11), %rdi
+	sub $256, %rdi
+	mov %rdi, TI_lowest_stack(%r11)
+
+	popq %r11
+	popq %rax
+	popq %rcx
+	popq %rdi
+	pax_force_retaddr
+	ret
+ENDPROC(pax_erase_kstack)
+#endif
 
 .macro TRACE_IRQS_IRETQ offset=ARGOFFSET
 #ifdef CONFIG_TRACE_IRQFLAGS
@@ -375,8 +660,8 @@ ENDPROC(native_usergs_sysret64)
 	.endm
 
 	.macro UNFAKE_STACK_FRAME
-	addq $8*6, %rsp
-	CFI_ADJUST_CFA_OFFSET	-(6*8)
+	addq $8*6 + ARG_SKIP, %rsp
+	CFI_ADJUST_CFA_OFFSET	-(6*8 + ARG_SKIP)
 	.endm
 
 /*
@@ -463,7 +748,7 @@ ENDPROC(native_usergs_sysret64)
 	movq %rsp, %rsi
 
 	leaq -RBP(%rsp),%rdi	/* arg1 for handler */
-	testl $3, CS-RBP(%rsi)
+	testb $3, CS-RBP(%rsi)
 	je 1f
 	SWAPGS
 	/*
@@ -498,9 +783,10 @@ ENTRY(save_rest)
 	movq_cfi r15, R15+16
 	movq %r11, 8(%rsp)	/* return address */
 	FIXUP_TOP_OF_STACK %r11, 16
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
-END(save_rest)
+ENDPROC(save_rest)
 
 /* save complete stack frame */
 	.pushsection .kprobes.text, "ax"
@@ -529,9 +815,10 @@ ENTRY(save_paranoid)
 	js 1f	/* negative -> in kernel */
 	SWAPGS
 	xorl %ebx,%ebx
-1:	ret
+1:	pax_force_retaddr_bts
+	ret
 	CFI_ENDPROC
-END(save_paranoid)
+ENDPROC(save_paranoid)
 	.popsection
 
 /*
@@ -553,7 +840,7 @@ ENTRY(ret_from_fork)
 
 	RESTORE_REST
 
-	testl $3, CS-ARGOFFSET(%rsp)		# from kernel_thread?
+	testb $3, CS-ARGOFFSET(%rsp)		# from kernel_thread?
 	jz   1f
 
 	testl $_TIF_IA32, TI_flags(%rcx)	# 32-bit compat task needs IRET
@@ -571,7 +858,7 @@ ENTRY(ret_from_fork)
 	RESTORE_REST
 	jmp int_ret_from_sys_call
 	CFI_ENDPROC
-END(ret_from_fork)
+ENDPROC(ret_from_fork)
 
 /*
  * System call entry. Up to 6 arguments in registers are supported.
@@ -608,7 +895,7 @@ END(ret_from_fork)
 ENTRY(system_call)
 	CFI_STARTPROC	simple
 	CFI_SIGNAL_FRAME
-	CFI_DEF_CFA	rsp,KERNEL_STACK_OFFSET
+	CFI_DEF_CFA	rsp,0
 	CFI_REGISTER	rip,rcx
 	/*CFI_REGISTER	rflags,r11*/
 	SWAPGS_UNSAFE_STACK
@@ -621,16 +908,23 @@ GLOBAL(system_call_after_swapgs)
 
 	movq	%rsp,PER_CPU_VAR(old_rsp)
 	movq	PER_CPU_VAR(kernel_stack),%rsp
+	SAVE_ARGS 8*6,0
+	pax_enter_kernel_user
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
 	/*
 	 * No need to follow this irqs off/on section - it's straight
 	 * and short:
 	 */
 	ENABLE_INTERRUPTS(CLBR_NONE)
-	SAVE_ARGS 8,0
 	movq  %rax,ORIG_RAX-ARGOFFSET(%rsp)
 	movq  %rcx,RIP-ARGOFFSET(%rsp)
 	CFI_REL_OFFSET rip,RIP-ARGOFFSET
-	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	GET_THREAD_INFO(%rcx)
+	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%rcx)
 	jnz tracesys
 system_call_fastpath:
 #if __SYSCALL_MASK == ~0
@@ -640,7 +934,7 @@ system_call_fastpath:
 	cmpl $__NR_syscall_max,%eax
 #endif
 	ja badsys
-	movq %r10,%rcx
+	movq R10-ARGOFFSET(%rsp),%rcx
 	call *sys_call_table(,%rax,8)  # XXX:	 rip relative
 	movq %rax,RAX-ARGOFFSET(%rsp)
 /*
@@ -654,10 +948,13 @@ sysret_check:
 	LOCKDEP_SYS_EXIT
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
-	movl TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET),%edx
+	GET_THREAD_INFO(%rcx)
+	movl TI_flags(%rcx),%edx
 	andl %edi,%edx
 	jnz  sysret_careful
 	CFI_REMEMBER_STATE
+	pax_exit_kernel_user
+	pax_erase_kstack
 	/*
 	 * sysretq will re-enable interrupts:
 	 */
@@ -709,14 +1006,18 @@ badsys:
 	 * jump back to the normal fast path.
 	 */
 auditsys:
-	movq %r10,%r9			/* 6th arg: 4th syscall arg */
+	movq R10-ARGOFFSET(%rsp),%r9	/* 6th arg: 4th syscall arg */
 	movq %rdx,%r8			/* 5th arg: 3rd syscall arg */
 	movq %rsi,%rcx			/* 4th arg: 2nd syscall arg */
 	movq %rdi,%rdx			/* 3rd arg: 1st syscall arg */
 	movq %rax,%rsi			/* 2nd arg: syscall number */
 	movl $AUDIT_ARCH_X86_64,%edi	/* 1st arg: audit arch */
 	call __audit_syscall_entry
+
+	pax_erase_kstack
+
 	LOAD_ARGS 0		/* reload call-clobbered registers */
+	pax_set_fptr_mask
 	jmp system_call_fastpath
 
 	/*
@@ -737,7 +1038,7 @@ sysret_audit:
 	/* Do syscall tracing */
 tracesys:
 #ifdef CONFIG_AUDITSYSCALL
-	testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%rcx)
 	jz auditsys
 #endif
 	SAVE_REST
@@ -745,12 +1046,16 @@ tracesys:
 	FIXUP_TOP_OF_STACK %rdi
 	movq %rsp,%rdi
 	call syscall_trace_enter
+
+	pax_erase_kstack
+
 	/*
 	 * Reload arg registers from stack in case ptrace changed them.
 	 * We don't reload %rax because syscall_trace_enter() returned
 	 * the value it wants us to use in the table lookup.
 	 */
 	LOAD_ARGS ARGOFFSET, 1
+	pax_set_fptr_mask
 	RESTORE_REST
 #if __SYSCALL_MASK == ~0
 	cmpq $__NR_syscall_max,%rax
@@ -759,7 +1064,7 @@ tracesys:
 	cmpl $__NR_syscall_max,%eax
 #endif
 	ja   int_ret_from_sys_call	/* RAX(%rsp) set to -ENOSYS above */
-	movq %r10,%rcx	/* fixup for C */
+	movq R10-ARGOFFSET(%rsp),%rcx	/* fixup for C */
 	call *sys_call_table(,%rax,8)
 	movq %rax,RAX-ARGOFFSET(%rsp)
 	/* Use IRET because user could have changed frame */
@@ -780,7 +1085,9 @@ GLOBAL(int_with_check)
 	andl %edi,%edx
 	jnz   int_careful
 	andl    $~TS_COMPAT,TI_status(%rcx)
-	jmp   retint_swapgs
+	pax_exit_kernel_user
+	pax_erase_kstack
+	jmp   retint_swapgs_pax
 
 	/* Either reschedule or signal or syscall exit tracking needed. */
 	/* First do a reschedule test. */
@@ -826,7 +1133,7 @@ int_restore_rest:
 	TRACE_IRQS_OFF
 	jmp int_with_check
 	CFI_ENDPROC
-END(system_call)
+ENDPROC(system_call)
 
 	.macro FORK_LIKE func
 ENTRY(stub_\func)
@@ -839,9 +1146,10 @@ ENTRY(stub_\func)
 	DEFAULT_FRAME 0 8		/* offset 8: return address */
 	call sys_\func
 	RESTORE_TOP_OF_STACK %r11, 8
+	pax_force_retaddr
 	ret $REST_SKIP		/* pop extended registers */
 	CFI_ENDPROC
-END(stub_\func)
+ENDPROC(stub_\func)
 	.endm
 
 	.macro FIXED_FRAME label,func
@@ -851,9 +1159,10 @@ ENTRY(\label)
 	FIXUP_TOP_OF_STACK %r11, 8-ARGOFFSET
 	call \func
 	RESTORE_TOP_OF_STACK %r11, 8-ARGOFFSET
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
-END(\label)
+ENDPROC(\label)
 	.endm
 
 	FORK_LIKE  clone
@@ -870,9 +1179,10 @@ ENTRY(ptregscall_common)
 	movq_cfi_restore R12+8, r12
 	movq_cfi_restore RBP+8, rbp
 	movq_cfi_restore RBX+8, rbx
+	pax_force_retaddr
 	ret $REST_SKIP		/* pop extended registers */
 	CFI_ENDPROC
-END(ptregscall_common)
+ENDPROC(ptregscall_common)
 
 ENTRY(stub_execve)
 	CFI_STARTPROC
@@ -885,7 +1195,7 @@ ENTRY(stub_execve)
 	RESTORE_REST
 	jmp int_ret_from_sys_call
 	CFI_ENDPROC
-END(stub_execve)
+ENDPROC(stub_execve)
 
 /*
  * sigreturn is special because it needs to restore all registers on return.
@@ -902,7 +1212,7 @@ ENTRY(stub_rt_sigreturn)
 	RESTORE_REST
 	jmp int_ret_from_sys_call
 	CFI_ENDPROC
-END(stub_rt_sigreturn)
+ENDPROC(stub_rt_sigreturn)
 
 #ifdef CONFIG_X86_X32_ABI
 ENTRY(stub_x32_rt_sigreturn)
@@ -916,7 +1226,7 @@ ENTRY(stub_x32_rt_sigreturn)
 	RESTORE_REST
 	jmp int_ret_from_sys_call
 	CFI_ENDPROC
-END(stub_x32_rt_sigreturn)
+ENDPROC(stub_x32_rt_sigreturn)
 
 ENTRY(stub_x32_execve)
 	CFI_STARTPROC
@@ -930,7 +1240,7 @@ ENTRY(stub_x32_execve)
 	RESTORE_REST
 	jmp int_ret_from_sys_call
 	CFI_ENDPROC
-END(stub_x32_execve)
+ENDPROC(stub_x32_execve)
 
 #endif
 
@@ -967,7 +1277,7 @@ vector=vector+1
 2:	jmp common_interrupt
 .endr
 	CFI_ENDPROC
-END(irq_entries_start)
+ENDPROC(irq_entries_start)
 
 .previous
 END(interrupt)
@@ -987,6 +1297,16 @@ END(interrupt)
 	subq $ORIG_RAX-RBP, %rsp
 	CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP
 	SAVE_ARGS_IRQ
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	testb $3, CS(%rdi)
+	jnz 1f
+	pax_enter_kernel
+	jmp 2f
+1:	pax_enter_kernel_user
+2:
+#else
+	pax_enter_kernel
+#endif
 	call \func
 	.endm
 
@@ -1019,7 +1339,7 @@ ret_from_intr:
 
 exit_intr:
 	GET_THREAD_INFO(%rcx)
-	testl $3,CS-ARGOFFSET(%rsp)
+	testb $3,CS-ARGOFFSET(%rsp)
 	je retint_kernel
 
 	/* Interrupt came from user space */
@@ -1041,12 +1361,16 @@ retint_swapgs:		/* return to user-space */
 	 * The iretq could re-enable interrupts:
 	 */
 	DISABLE_INTERRUPTS(CLBR_ANY)
+	pax_exit_kernel_user
+retint_swapgs_pax:
 	TRACE_IRQS_IRETQ
 	SWAPGS
 	jmp restore_args
 
 retint_restore_args:	/* return to kernel space */
 	DISABLE_INTERRUPTS(CLBR_ANY)
+	pax_exit_kernel
+	pax_force_retaddr (RIP-ARGOFFSET)
 	/*
 	 * The iretq could re-enable interrupts:
 	 */
@@ -1129,7 +1453,7 @@ ENTRY(retint_kernel)
 #endif
 
 	CFI_ENDPROC
-END(common_interrupt)
+ENDPROC(common_interrupt)
 /*
  * End of kprobes section
  */
@@ -1147,7 +1471,7 @@ ENTRY(\sym)
 	interrupt \do_sym
 	jmp ret_from_intr
 	CFI_ENDPROC
-END(\sym)
+ENDPROC(\sym)
 .endm
 
 #ifdef CONFIG_SMP
@@ -1203,12 +1527,22 @@ ENTRY(\sym)
 	CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
 	call error_entry
 	DEFAULT_FRAME 0
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	testb $3, CS(%rsp)
+	jnz 1f
+	pax_enter_kernel
+	jmp 2f
+1:	pax_enter_kernel_user
+2:
+#else
+	pax_enter_kernel
+#endif
 	movq %rsp,%rdi		/* pt_regs pointer */
 	xorl %esi,%esi		/* no error code */
 	call \do_sym
 	jmp error_exit		/* %ebx: no swapgs flag */
 	CFI_ENDPROC
-END(\sym)
+ENDPROC(\sym)
 .endm
 
 .macro paranoidzeroentry sym do_sym
@@ -1221,15 +1555,25 @@ ENTRY(\sym)
 	CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
 	call save_paranoid
 	TRACE_IRQS_OFF
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	testb $3, CS(%rsp)
+	jnz 1f
+	pax_enter_kernel
+	jmp 2f
+1:	pax_enter_kernel_user
+2:
+#else
+	pax_enter_kernel
+#endif
 	movq %rsp,%rdi		/* pt_regs pointer */
 	xorl %esi,%esi		/* no error code */
 	call \do_sym
 	jmp paranoid_exit	/* %ebx: no swapgs flag */
 	CFI_ENDPROC
-END(\sym)
+ENDPROC(\sym)
 .endm
 
-#define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8)
+#define INIT_TSS_IST(x) (TSS_ist + ((x) - 1) * 8)(%r12)
 .macro paranoidzeroentry_ist sym do_sym ist
 ENTRY(\sym)
 	INTR_FRAME
@@ -1240,14 +1584,30 @@ ENTRY(\sym)
 	CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
 	call save_paranoid
 	TRACE_IRQS_OFF_DEBUG
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	testb $3, CS(%rsp)
+	jnz 1f
+	pax_enter_kernel
+	jmp 2f
+1:	pax_enter_kernel_user
+2:
+#else
+	pax_enter_kernel
+#endif
 	movq %rsp,%rdi		/* pt_regs pointer */
 	xorl %esi,%esi		/* no error code */
+#ifdef CONFIG_SMP
+	imul $TSS_size, PER_CPU_VAR(cpu_number), %r12d
+	lea init_tss(%r12), %r12
+#else
+	lea init_tss(%rip), %r12
+#endif
 	subq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist)
 	call \do_sym
 	addq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist)
 	jmp paranoid_exit	/* %ebx: no swapgs flag */
 	CFI_ENDPROC
-END(\sym)
+ENDPROC(\sym)
 .endm
 
 .macro errorentry sym do_sym
@@ -1259,13 +1619,23 @@ ENTRY(\sym)
 	CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
 	call error_entry
 	DEFAULT_FRAME 0
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	testb $3, CS(%rsp)
+	jnz 1f
+	pax_enter_kernel
+	jmp 2f
+1:	pax_enter_kernel_user
+2:
+#else
+	pax_enter_kernel
+#endif
 	movq %rsp,%rdi			/* pt_regs pointer */
 	movq ORIG_RAX(%rsp),%rsi	/* get error code */
 	movq $-1,ORIG_RAX(%rsp)		/* no syscall to restart */
 	call \do_sym
 	jmp error_exit			/* %ebx: no swapgs flag */
 	CFI_ENDPROC
-END(\sym)
+ENDPROC(\sym)
 .endm
 
 	/* error code is on the stack already */
@@ -1279,13 +1649,23 @@ ENTRY(\sym)
 	call save_paranoid
 	DEFAULT_FRAME 0
 	TRACE_IRQS_OFF
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	testb $3, CS(%rsp)
+	jnz 1f
+	pax_enter_kernel
+	jmp 2f
+1:	pax_enter_kernel_user
+2:
+#else
+	pax_enter_kernel
+#endif
 	movq %rsp,%rdi			/* pt_regs pointer */
 	movq ORIG_RAX(%rsp),%rsi	/* get error code */
 	movq $-1,ORIG_RAX(%rsp)		/* no syscall to restart */
 	call \do_sym
 	jmp paranoid_exit		/* %ebx: no swapgs flag */
 	CFI_ENDPROC
-END(\sym)
+ENDPROC(\sym)
 .endm
 
 zeroentry divide_error do_divide_error
@@ -1315,9 +1695,10 @@ gs_change:
 2:	mfence		/* workaround */
 	SWAPGS
 	popfq_cfi
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
-END(native_load_gs_index)
+ENDPROC(native_load_gs_index)
 
 	_ASM_EXTABLE(gs_change,bad_gs)
 	.section .fixup,"ax"
@@ -1345,9 +1726,10 @@ ENTRY(call_softirq)
 	CFI_DEF_CFA_REGISTER	rsp
 	CFI_ADJUST_CFA_OFFSET   -8
 	decl PER_CPU_VAR(irq_count)
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
-END(call_softirq)
+ENDPROC(call_softirq)
 
 #ifdef CONFIG_XEN
 zeroentry xen_hypervisor_callback xen_do_hypervisor_callback
@@ -1385,7 +1767,7 @@ ENTRY(xen_do_hypervisor_callback)   # do_hypervisor_callback(struct *pt_regs)
 	decl PER_CPU_VAR(irq_count)
 	jmp  error_exit
 	CFI_ENDPROC
-END(xen_do_hypervisor_callback)
+ENDPROC(xen_do_hypervisor_callback)
 
 /*
  * Hypervisor uses this for application faults while it executes.
@@ -1444,7 +1826,7 @@ ENTRY(xen_failsafe_callback)
 	SAVE_ALL
 	jmp error_exit
 	CFI_ENDPROC
-END(xen_failsafe_callback)
+ENDPROC(xen_failsafe_callback)
 
 apicinterrupt HYPERVISOR_CALLBACK_VECTOR \
 	xen_hvm_callback_vector xen_evtchn_do_upcall
@@ -1498,16 +1880,31 @@ ENTRY(paranoid_exit)
 	TRACE_IRQS_OFF_DEBUG
 	testl %ebx,%ebx				/* swapgs needed? */
 	jnz paranoid_restore
-	testl $3,CS(%rsp)
+	testb $3,CS(%rsp)
 	jnz   paranoid_userspace
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pax_exit_kernel
+	TRACE_IRQS_IRETQ 0
+	SWAPGS_UNSAFE_STACK
+	RESTORE_ALL 8
+	pax_force_retaddr_bts
+	jmp irq_return
+#endif
 paranoid_swapgs:
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pax_exit_kernel_user
+#else
+	pax_exit_kernel
+#endif
 	TRACE_IRQS_IRETQ 0
 	SWAPGS_UNSAFE_STACK
 	RESTORE_ALL 8
 	jmp irq_return
 paranoid_restore:
+	pax_exit_kernel
 	TRACE_IRQS_IRETQ_DEBUG 0
 	RESTORE_ALL 8
+	pax_force_retaddr_bts
 	jmp irq_return
 paranoid_userspace:
 	GET_THREAD_INFO(%rcx)
@@ -1536,7 +1933,7 @@ paranoid_schedule:
 	TRACE_IRQS_OFF
 	jmp paranoid_userspace
 	CFI_ENDPROC
-END(paranoid_exit)
+ENDPROC(paranoid_exit)
 
 /*
  * Exception entry point. This expects an error code/orig_rax on the stack.
@@ -1563,12 +1960,13 @@ ENTRY(error_entry)
 	movq_cfi r14, R14+8
 	movq_cfi r15, R15+8
 	xorl %ebx,%ebx
-	testl $3,CS+8(%rsp)
+	testb $3,CS+8(%rsp)
 	je error_kernelspace
 error_swapgs:
 	SWAPGS
 error_sti:
 	TRACE_IRQS_OFF
+	pax_force_retaddr_bts
 	ret
 
 /*
@@ -1595,7 +1993,7 @@ bstep_iret:
 	movq %rcx,RIP+8(%rsp)
 	jmp error_swapgs
 	CFI_ENDPROC
-END(error_entry)
+ENDPROC(error_entry)
 
 
 /* ebx:	no swapgs flag (1: don't need swapgs, 0: need it) */
@@ -1615,7 +2013,7 @@ ENTRY(error_exit)
 	jnz retint_careful
 	jmp retint_swapgs
 	CFI_ENDPROC
-END(error_exit)
+ENDPROC(error_exit)
 
 /*
  * Test if a given stack is an NMI stack or not.
@@ -1673,9 +2071,11 @@ ENTRY(nmi)
 	 * If %cs was not the kernel segment, then the NMI triggered in user
 	 * space, which means it is definitely not nested.
 	 */
+	cmpl $__KERNEXEC_KERNEL_CS, 16(%rsp)
+	je 1f
 	cmpl $__KERNEL_CS, 16(%rsp)
 	jne first_nmi
-
+1:
 	/*
 	 * Check the special variable on the stack to see if NMIs are
 	 * executing.
@@ -1709,8 +2109,7 @@ nested_nmi:
 
 1:
 	/* Set up the interrupted NMIs stack to jump to repeat_nmi */
-	leaq -1*8(%rsp), %rdx
-	movq %rdx, %rsp
+	subq $8, %rsp
 	CFI_ADJUST_CFA_OFFSET 1*8
 	leaq -10*8(%rsp), %rdx
 	pushq_cfi $__KERNEL_DS
@@ -1728,6 +2127,7 @@ nested_nmi_out:
 	CFI_RESTORE rdx
 
 	/* No need to check faults here */
+	pax_force_retaddr_bts
 	INTERRUPT_RETURN
 
 	CFI_RESTORE_STATE
@@ -1844,6 +2244,17 @@ end_repeat_nmi:
 	 */
 	movq %cr2, %r12
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	testb $3, CS(%rsp)
+	jnz 1f
+	pax_enter_kernel
+	jmp 2f
+1:	pax_enter_kernel_user
+2:
+#else
+	pax_enter_kernel
+#endif
+
 	/* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */
 	movq %rsp,%rdi
 	movq $-1,%rsi
@@ -1859,23 +2270,34 @@ end_repeat_nmi:
 	testl %ebx,%ebx				/* swapgs needed? */
 	jnz nmi_restore
 nmi_swapgs:
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pax_exit_kernel_user
+#else
+	pax_exit_kernel
+#endif
 	SWAPGS_UNSAFE_STACK
+	RESTORE_ALL 6*8
+	/* Clear the NMI executing stack variable */
+	movq $0, 5*8(%rsp)
+	jmp irq_return
 nmi_restore:
+	pax_exit_kernel
 	/* Pop the extra iret frame at once */
 	RESTORE_ALL 6*8
+	pax_force_retaddr_bts
 
 	/* Clear the NMI executing stack variable */
 	movq $0, 5*8(%rsp)
 	jmp irq_return
 	CFI_ENDPROC
-END(nmi)
+ENDPROC(nmi)
 
 ENTRY(ignore_sysret)
 	CFI_STARTPROC
 	mov $-ENOSYS,%eax
 	sysret
 	CFI_ENDPROC
-END(ignore_sysret)
+ENDPROC(ignore_sysret)
 
 /*
  * End of kprobes section
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 42a392a..fbbd930 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -105,6 +105,8 @@ ftrace_modify_code_direct(unsigned long ip, unsigned const char *old_code,
 {
 	unsigned char replaced[MCOUNT_INSN_SIZE];
 
+	ip = ktla_ktva(ip);
+
 	/*
 	 * Note: Due to modules and __init, code can
 	 *  disappear and change, we need to protect against faulting
@@ -227,7 +229,7 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
 	unsigned char old[MCOUNT_INSN_SIZE], *new;
 	int ret;
 
-	memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE);
+	memcpy(old, (void *)ktla_ktva((unsigned long)ftrace_call), MCOUNT_INSN_SIZE);
 	new = ftrace_call_replace(ip, (unsigned long)func);
 
 	/* See comment above by declaration of modifying_ftrace_code */
@@ -238,7 +240,7 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
 	/* Also update the regs callback function */
 	if (!ret) {
 		ip = (unsigned long)(&ftrace_regs_call);
-		memcpy(old, &ftrace_regs_call, MCOUNT_INSN_SIZE);
+		memcpy(old, ktla_ktva((void *)&ftrace_regs_call), MCOUNT_INSN_SIZE);
 		new = ftrace_call_replace(ip, (unsigned long)func);
 		ret = ftrace_modify_code(ip, old, new);
 	}
@@ -279,7 +281,7 @@ static int ftrace_write(unsigned long ip, const char *val, int size)
 	 * kernel identity mapping to modify code.
 	 */
 	if (within(ip, (unsigned long)_text, (unsigned long)_etext))
-		ip = (unsigned long)__va(__pa_symbol(ip));
+		ip = (unsigned long)__va(__pa_symbol(ktla_ktva(ip)));
 
 	return probe_kernel_write((void *)ip, val, size);
 }
@@ -289,7 +291,7 @@ static int add_break(unsigned long ip, const char *old)
 	unsigned char replaced[MCOUNT_INSN_SIZE];
 	unsigned char brk = BREAKPOINT_INSTRUCTION;
 
-	if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
+	if (probe_kernel_read(replaced, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE))
 		return -EFAULT;
 
 	/* Make sure it is what we expect it to be */
@@ -637,7 +639,7 @@ ftrace_modify_code(unsigned long ip, unsigned const char *old_code,
 	return ret;
 
  fail_update:
-	probe_kernel_write((void *)ip, &old_code[0], 1);
+	probe_kernel_write((void *)ktla_ktva(ip), &old_code[0], 1);
 	goto out;
 }
 
@@ -670,6 +672,8 @@ static int ftrace_mod_jmp(unsigned long ip,
 {
 	unsigned char code[MCOUNT_INSN_SIZE];
 
+	ip = ktla_ktva(ip);
+
 	if (probe_kernel_read(code, (void *)ip, MCOUNT_INSN_SIZE))
 		return -EFAULT;
 
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 8f3201d..aa860bf 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -175,7 +175,6 @@ void __init x86_64_start_kernel(char * real_mode_data)
 	if (console_loglevel == 10)
 		early_printk("Kernel alive\n");
 
-	clear_page(init_level4_pgt);
 	/* set init_level4_pgt kernel high mapping*/
 	init_level4_pgt[511] = early_level4_pgt[511];
 
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 73afd11..d1670f5 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -26,6 +26,12 @@
 /* Physical address */
 #define pa(X) ((X) - __PAGE_OFFSET)
 
+#ifdef CONFIG_PAX_KERNEXEC
+#define ta(X) (X)
+#else
+#define ta(X) ((X) - __PAGE_OFFSET)
+#endif
+
 /*
  * References to members of the new_cpu_data structure.
  */
@@ -55,11 +61,7 @@
  * and small than max_low_pfn, otherwise will waste some page table entries
  */
 
-#if PTRS_PER_PMD > 1
-#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD)
-#else
-#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD)
-#endif
+#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE)
 
 /* Number of possible pages in the lowmem region */
 LOWMEM_PAGES = (((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT)
@@ -78,6 +80,12 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE
 RESERVE_BRK(pagetables, INIT_MAP_SIZE)
 
 /*
+ * Real beginning of normal "text" segment
+ */
+ENTRY(stext)
+ENTRY(_stext)
+
+/*
  * 32-bit kernel entrypoint; only used by the boot CPU.  On entry,
  * %esi points to the real-mode code as a 32-bit pointer.
  * CS and DS must be 4 GB flat segments, but we don't depend on
@@ -85,6 +93,13 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
  * can.
  */
 __HEAD
+
+#ifdef CONFIG_PAX_KERNEXEC
+	jmp startup_32
+/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */
+.fill PAGE_SIZE-5,1,0xcc
+#endif
+
 ENTRY(startup_32)
 	movl pa(stack_start),%ecx
 	
@@ -106,6 +121,59 @@ ENTRY(startup_32)
 2:
 	leal -__PAGE_OFFSET(%ecx),%esp
 
+#ifdef CONFIG_SMP
+	movl $pa(cpu_gdt_table),%edi
+	movl $__per_cpu_load,%eax
+	movw %ax,GDT_ENTRY_PERCPU * 8 + 2(%edi)
+	rorl $16,%eax
+	movb %al,GDT_ENTRY_PERCPU * 8 + 4(%edi)
+	movb %ah,GDT_ENTRY_PERCPU * 8 + 7(%edi)
+	movl $__per_cpu_end - 1,%eax
+	subl $__per_cpu_start,%eax
+	movw %ax,GDT_ENTRY_PERCPU * 8 + 0(%edi)
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	movl $NR_CPUS,%ecx
+	movl $pa(cpu_gdt_table),%edi
+1:
+	movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi)
+	movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0fb00),GDT_ENTRY_DEFAULT_USER_CS * 8 + 4(%edi)
+	movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0f300),GDT_ENTRY_DEFAULT_USER_DS * 8 + 4(%edi)
+	addl $PAGE_SIZE_asm,%edi
+	loop 1b
+#endif
+
+#ifdef CONFIG_PAX_KERNEXEC
+	movl $pa(boot_gdt),%edi
+	movl $__LOAD_PHYSICAL_ADDR,%eax
+	movw %ax,GDT_ENTRY_BOOT_CS * 8 + 2(%edi)
+	rorl $16,%eax
+	movb %al,GDT_ENTRY_BOOT_CS * 8 + 4(%edi)
+	movb %ah,GDT_ENTRY_BOOT_CS * 8 + 7(%edi)
+	rorl $16,%eax
+
+	ljmp $(__BOOT_CS),$1f
+1:
+
+	movl $NR_CPUS,%ecx
+	movl $pa(cpu_gdt_table),%edi
+	addl $__PAGE_OFFSET,%eax
+1:
+	movb $0xc0,GDT_ENTRY_KERNEL_CS * 8 + 6(%edi)
+	movb $0xc0,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 6(%edi)
+	movw %ax,GDT_ENTRY_KERNEL_CS * 8 + 2(%edi)
+	movw %ax,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 2(%edi)
+	rorl $16,%eax
+	movb %al,GDT_ENTRY_KERNEL_CS * 8 + 4(%edi)
+	movb %al,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 4(%edi)
+	movb %ah,GDT_ENTRY_KERNEL_CS * 8 + 7(%edi)
+	movb %ah,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 7(%edi)
+	rorl $16,%eax
+	addl $PAGE_SIZE_asm,%edi
+	loop 1b
+#endif
+
 /*
  * Clear BSS first so that there are no surprises...
  */
@@ -201,8 +269,11 @@ ENTRY(startup_32)
 	movl %eax, pa(max_pfn_mapped)
 
 	/* Do early initialization of the fixmap area */
-	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
-	movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8)
+#ifdef CONFIG_COMPAT_VDSO
+	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_pg_pmd+0x1000*KPMDS-8)
+#else
+	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_pg_pmd+0x1000*KPMDS-8)
+#endif
 #else	/* Not PAE */
 
 page_pde_offset = (__PAGE_OFFSET >> 20);
@@ -232,8 +303,11 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
 	movl %eax, pa(max_pfn_mapped)
 
 	/* Do early initialization of the fixmap area */
-	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
-	movl %eax,pa(initial_page_table+0xffc)
+#ifdef CONFIG_COMPAT_VDSO
+	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_page_table+0xffc)
+#else
+	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_page_table+0xffc)
+#endif
 #endif
 
 #ifdef CONFIG_PARAVIRT
@@ -247,9 +321,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
 	cmpl $num_subarch_entries, %eax
 	jae bad_subarch
 
-	movl pa(subarch_entries)(,%eax,4), %eax
-	subl $__PAGE_OFFSET, %eax
-	jmp *%eax
+	jmp *pa(subarch_entries)(,%eax,4)
 
 bad_subarch:
 WEAK(lguest_entry)
@@ -261,10 +333,10 @@ WEAK(xen_entry)
 	__INITDATA
 
 subarch_entries:
-	.long default_entry		/* normal x86/PC */
-	.long lguest_entry		/* lguest hypervisor */
-	.long xen_entry			/* Xen hypervisor */
-	.long default_entry		/* Moorestown MID */
+	.long ta(default_entry)		/* normal x86/PC */
+	.long ta(lguest_entry)		/* lguest hypervisor */
+	.long ta(xen_entry)		/* Xen hypervisor */
+	.long ta(default_entry)		/* Moorestown MID */
 num_subarch_entries = (. - subarch_entries) / 4
 .previous
 #else
@@ -355,6 +427,7 @@ default_entry:
 	movl pa(mmu_cr4_features),%eax
 	movl %eax,%cr4
 
+#ifdef CONFIG_X86_PAE
 	testb $X86_CR4_PAE, %al		# check if PAE is enabled
 	jz enable_paging
 
@@ -383,6 +456,9 @@ default_entry:
 	/* Make changes effective */
 	wrmsr
 
+	btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4)
+#endif
+
 enable_paging:
 
 /*
@@ -451,14 +527,20 @@ is486:
 1:	movl $(__KERNEL_DS),%eax	# reload all the segment registers
 	movl %eax,%ss			# after changing gdt.
 
-	movl $(__USER_DS),%eax		# DS/ES contains default USER segment
+#	movl $(__KERNEL_DS),%eax	# DS/ES contains default KERNEL segment
 	movl %eax,%ds
 	movl %eax,%es
 
 	movl $(__KERNEL_PERCPU), %eax
 	movl %eax,%fs			# set this cpu's percpu
 
+#ifdef CONFIG_CC_STACKPROTECTOR
 	movl $(__KERNEL_STACK_CANARY),%eax
+#elif defined(CONFIG_PAX_MEMORY_UDEREF)
+	movl $(__USER_DS),%eax
+#else
+	xorl %eax,%eax
+#endif
 	movl %eax,%gs
 
 	xorl %eax,%eax			# Clear LDT
@@ -534,8 +616,11 @@ setup_once:
 	 * relocation.  Manually set base address in stack canary
 	 * segment descriptor.
 	 */
-	movl $gdt_page,%eax
+	movl $cpu_gdt_table,%eax
 	movl $stack_canary,%ecx
+#ifdef CONFIG_SMP
+	addl $__per_cpu_load,%ecx
+#endif
 	movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax)
 	shrl $16, %ecx
 	movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax)
@@ -566,7 +651,7 @@ ENDPROC(early_idt_handlers)
 	/* This is global to keep gas from relaxing the jumps */
 ENTRY(early_idt_handler)
 	cld
-	cmpl $2,%ss:early_recursion_flag
+	cmpl $1,%ss:early_recursion_flag
 	je hlt_loop
 	incl %ss:early_recursion_flag
 
@@ -604,8 +689,8 @@ ENTRY(early_idt_handler)
 	pushl (20+6*4)(%esp)	/* trapno */
 	pushl $fault_msg
 	call printk
-#endif
 	call dump_stack
+#endif
 hlt_loop:
 	hlt
 	jmp hlt_loop
@@ -624,8 +709,11 @@ ENDPROC(early_idt_handler)
 /* This is the default interrupt "handler" :-) */
 	ALIGN
 ignore_int:
-	cld
 #ifdef CONFIG_PRINTK
+	cmpl $2,%ss:early_recursion_flag
+	je hlt_loop
+	incl %ss:early_recursion_flag
+	cld
 	pushl %eax
 	pushl %ecx
 	pushl %edx
@@ -634,9 +722,6 @@ ignore_int:
 	movl $(__KERNEL_DS),%eax
 	movl %eax,%ds
 	movl %eax,%es
-	cmpl $2,early_recursion_flag
-	je hlt_loop
-	incl early_recursion_flag
 	pushl 16(%esp)
 	pushl 24(%esp)
 	pushl 32(%esp)
@@ -670,29 +755,43 @@ ENTRY(setup_once_ref)
 /*
  * BSS section
  */
-__PAGE_ALIGNED_BSS
-	.align PAGE_SIZE
 #ifdef CONFIG_X86_PAE
+.section .initial_pg_pmd,"a",@progbits
 initial_pg_pmd:
 	.fill 1024*KPMDS,4,0
 #else
+.section .initial_page_table,"a",@progbits
 ENTRY(initial_page_table)
 	.fill 1024,4,0
 #endif
+.section .initial_pg_fixmap,"a",@progbits
 initial_pg_fixmap:
 	.fill 1024,4,0
+.section .empty_zero_page,"a",@progbits
 ENTRY(empty_zero_page)
 	.fill 4096,1,0
+.section .swapper_pg_dir,"a",@progbits
 ENTRY(swapper_pg_dir)
+#ifdef CONFIG_X86_PAE
+	.fill 4,8,0
+#else
 	.fill 1024,4,0
+#endif
+
+/*
+ * The IDT has to be page-aligned to simplify the Pentium
+ * F0 0F bug workaround.. We have a special link segment
+ * for this.
+ */
+.section .idt,"a",@progbits
+ENTRY(idt_table)
+	.fill 256,8,0
 
 /*
  * This starts the data section.
  */
 #ifdef CONFIG_X86_PAE
-__PAGE_ALIGNED_DATA
-	/* Page-aligned for the benefit of paravirt? */
-	.align PAGE_SIZE
+.section .initial_page_table,"a",@progbits
 ENTRY(initial_page_table)
 	.long	pa(initial_pg_pmd+PGD_IDENT_ATTR),0	/* low identity map */
 # if KPMDS == 3
@@ -711,12 +810,20 @@ ENTRY(initial_page_table)
 #  error "Kernel PMDs should be 1, 2 or 3"
 # endif
 	.align PAGE_SIZE		/* needs to be page-sized too */
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+ENTRY(cpu_pgd)
+	.rept NR_CPUS
+	.fill	4,8,0
+	.endr
+#endif
+
 #endif
 
 .data
 .balign 4
 ENTRY(stack_start)
-	.long init_thread_union+THREAD_SIZE
+	.long init_thread_union+THREAD_SIZE-8
 
 __INITRODATA
 int_msg:
@@ -744,7 +851,7 @@ fault_msg:
  * segment size, and 32-bit linear address value:
  */
 
-	.data
+.section .rodata,"a",@progbits
 .globl boot_gdt_descr
 .globl idt_descr
 
@@ -753,7 +860,7 @@ fault_msg:
 	.word 0				# 32 bit align gdt_desc.address
 boot_gdt_descr:
 	.word __BOOT_DS+7
-	.long boot_gdt - __PAGE_OFFSET
+	.long pa(boot_gdt)
 
 	.word 0				# 32-bit align idt_desc.address
 idt_descr:
@@ -764,7 +871,7 @@ idt_descr:
 	.word 0				# 32 bit align gdt_desc.address
 ENTRY(early_gdt_descr)
 	.word GDT_ENTRIES*8-1
-	.long gdt_page			/* Overwritten for secondary CPUs */
+	.long cpu_gdt_table		/* Overwritten for secondary CPUs */
 
 /*
  * The boot_gdt must mirror the equivalent in setup.S and is
@@ -773,5 +880,65 @@ ENTRY(early_gdt_descr)
 	.align L1_CACHE_BYTES
 ENTRY(boot_gdt)
 	.fill GDT_ENTRY_BOOT_CS,8,0
-	.quad 0x00cf9a000000ffff	/* kernel 4GB code at 0x00000000 */
-	.quad 0x00cf92000000ffff	/* kernel 4GB data at 0x00000000 */
+	.quad 0x00cf9b000000ffff	/* kernel 4GB code at 0x00000000 */
+	.quad 0x00cf93000000ffff	/* kernel 4GB data at 0x00000000 */
+
+	.align PAGE_SIZE_asm
+ENTRY(cpu_gdt_table)
+	.rept NR_CPUS
+	.quad 0x0000000000000000	/* NULL descriptor */
+	.quad 0x0000000000000000	/* 0x0b reserved */
+	.quad 0x0000000000000000	/* 0x13 reserved */
+	.quad 0x0000000000000000	/* 0x1b reserved */
+
+#ifdef CONFIG_PAX_KERNEXEC
+	.quad 0x00cf9b000000ffff	/* 0x20 alternate kernel 4GB code at 0x00000000 */
+#else
+	.quad 0x0000000000000000	/* 0x20 unused */
+#endif
+
+	.quad 0x0000000000000000	/* 0x28 unused */
+	.quad 0x0000000000000000	/* 0x33 TLS entry 1 */
+	.quad 0x0000000000000000	/* 0x3b TLS entry 2 */
+	.quad 0x0000000000000000	/* 0x43 TLS entry 3 */
+	.quad 0x0000000000000000	/* 0x4b reserved */
+	.quad 0x0000000000000000	/* 0x53 reserved */
+	.quad 0x0000000000000000	/* 0x5b reserved */
+
+	.quad 0x00cf9b000000ffff	/* 0x60 kernel 4GB code at 0x00000000 */
+	.quad 0x00cf93000000ffff	/* 0x68 kernel 4GB data at 0x00000000 */
+	.quad 0x00cffb000000ffff	/* 0x73 user 4GB code at 0x00000000 */
+	.quad 0x00cff3000000ffff	/* 0x7b user 4GB data at 0x00000000 */
+
+	.quad 0x0000000000000000	/* 0x80 TSS descriptor */
+	.quad 0x0000000000000000	/* 0x88 LDT descriptor */
+
+	/*
+	 * Segments used for calling PnP BIOS have byte granularity.
+	 * The code segments and data segments have fixed 64k limits,
+	 * the transfer segment sizes are set at run time.
+	 */
+	.quad 0x00409b000000ffff	/* 0x90 32-bit code */
+	.quad 0x00009b000000ffff	/* 0x98 16-bit code */
+	.quad 0x000093000000ffff	/* 0xa0 16-bit data */
+	.quad 0x0000930000000000	/* 0xa8 16-bit data */
+	.quad 0x0000930000000000	/* 0xb0 16-bit data */
+
+	/*
+	 * The APM segments have byte granularity and their bases
+	 * are set at run time.  All have 64k limits.
+	 */
+	.quad 0x00409b000000ffff	/* 0xb8 APM CS    code */
+	.quad 0x00009b000000ffff	/* 0xc0 APM CS 16 code (16 bit) */
+	.quad 0x004093000000ffff	/* 0xc8 APM DS    data */
+
+	.quad 0x00c0930000000000	/* 0xd0 - ESPFIX SS */
+	.quad 0x0040930000000000	/* 0xd8 - PERCPU */
+	.quad 0x0040910000000017	/* 0xe0 - STACK_CANARY */
+	.quad 0x0000000000000000	/* 0xe8 - PCIBIOS_CS */
+	.quad 0x0000000000000000	/* 0xf0 - PCIBIOS_DS */
+	.quad 0x0000000000000000	/* 0xf8 - GDT entry 31: double-fault TSS */
+
+	/* Be sure this is zeroed to avoid false validations in Xen */
+	.fill PAGE_SIZE_asm - GDT_SIZE,1,0
+	.endr
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 08f7e80..40cbed5 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -20,6 +20,8 @@
 #include <asm/processor-flags.h>
 #include <asm/percpu.h>
 #include <asm/nops.h>
+#include <asm/cpufeature.h>
+#include <asm/alternative-asm.h>
 
 #ifdef CONFIG_PARAVIRT
 #include <asm/asm-offsets.h>
@@ -41,6 +43,12 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET)
 L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET)
 L4_START_KERNEL = pgd_index(__START_KERNEL_map)
 L3_START_KERNEL = pud_index(__START_KERNEL_map)
+L4_VMALLOC_START = pgd_index(VMALLOC_START)
+L3_VMALLOC_START = pud_index(VMALLOC_START)
+L4_VMALLOC_END = pgd_index(VMALLOC_END)
+L3_VMALLOC_END = pud_index(VMALLOC_END)
+L4_VMEMMAP_START = pgd_index(VMEMMAP_START)
+L3_VMEMMAP_START = pud_index(VMEMMAP_START)
 
 	.text
 	__HEAD
@@ -89,11 +97,15 @@ startup_64:
 	 * Fixup the physical addresses in the page table
 	 */
 	addq	%rbp, early_level4_pgt + (L4_START_KERNEL*8)(%rip)
+	addq	%rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip)
+	addq	%rbp, init_level4_pgt + (L4_VMALLOC_END*8)(%rip)
+	addq	%rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip)
 
 	addq	%rbp, level3_kernel_pgt + (510*8)(%rip)
 	addq	%rbp, level3_kernel_pgt + (511*8)(%rip)
 
 	addq	%rbp, level2_fixmap_pgt + (506*8)(%rip)
+	addq	%rbp, level2_fixmap_pgt + (507*8)(%rip)
 
 	/*
 	 * Set up the identity mapping for the switchover.  These
@@ -175,8 +187,8 @@ ENTRY(secondary_startup_64)
 	movq	$(init_level4_pgt - __START_KERNEL_map), %rax
 1:
 
-	/* Enable PAE mode and PGE */
-	movl	$(X86_CR4_PAE | X86_CR4_PGE), %ecx
+	/* Enable PAE mode and PSE/PGE */
+	movl	$(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %ecx
 	movq	%rcx, %cr4
 
 	/* Setup early boot stage 4 level pagetables. */
@@ -197,10 +209,18 @@ ENTRY(secondary_startup_64)
 	movl	$MSR_EFER, %ecx
 	rdmsr
 	btsl	$_EFER_SCE, %eax	/* Enable System Call */
-	btl	$20,%edi		/* No Execute supported? */
+	btl	$(X86_FEATURE_NX & 31),%edi	/* No Execute supported? */
 	jnc     1f
 	btsl	$_EFER_NX, %eax
 	btsq	$_PAGE_BIT_NX,early_pmd_flags(%rip)
+	leaq	init_level4_pgt(%rip), %rdi
+#ifndef CONFIG_EFI
+	btsq	$_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi)
+#endif
+	btsq	$_PAGE_BIT_NX, 8*L4_VMALLOC_START(%rdi)
+	btsq	$_PAGE_BIT_NX, 8*L4_VMALLOC_END(%rdi)
+	btsq	$_PAGE_BIT_NX, 8*L4_VMEMMAP_START(%rdi)
+	btsq	$_PAGE_BIT_NX, __supported_pte_mask(%rip)
 1:	wrmsr				/* Make changes effective */
 
 	/* Setup cr0 */
@@ -280,6 +300,7 @@ ENTRY(secondary_startup_64)
 	 *	REX.W + FF /5 JMP m16:64 Jump far, absolute indirect,
 	 *		address given in m16:64.
 	 */
+	pax_set_fptr_mask
 	movq	initial_code(%rip),%rax
 	pushq	$0		# fake return address to stop unwinder
 	pushq	$__KERNEL_CS	# set correct cs
@@ -386,7 +407,7 @@ ENTRY(early_idt_handler)
 	call dump_stack
 #ifdef CONFIG_KALLSYMS	
 	leaq early_idt_ripmsg(%rip),%rdi
-	movq 40(%rsp),%rsi	# %rip again
+	movq 88(%rsp),%rsi	# %rip again
 	call __print_symbol
 #endif
 #endif /* EARLY_PRINTK */
@@ -414,6 +435,7 @@ ENDPROC(early_idt_handler)
 early_recursion_flag:
 	.long 0
 
+	.section .rodata,"a",@progbits
 #ifdef CONFIG_EARLY_PRINTK
 early_idt_msg:
 	.asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
@@ -443,27 +465,50 @@ NEXT_PAGE(early_dynamic_pgts)
 
 	.data
 
-#ifndef CONFIG_XEN
 NEXT_PAGE(init_level4_pgt)
-	.fill	512,8,0
-#else
-NEXT_PAGE(init_level4_pgt)
-	.quad   level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
 	.org    init_level4_pgt + L4_PAGE_OFFSET*8, 0
 	.quad   level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
+	.org	init_level4_pgt + L4_VMALLOC_START*8, 0
+	.quad	level3_vmalloc_start_pgt - __START_KERNEL_map + _KERNPG_TABLE
+	.org	init_level4_pgt + L4_VMALLOC_END*8, 0
+	.quad	level3_vmalloc_end_pgt - __START_KERNEL_map + _KERNPG_TABLE
+	.org	init_level4_pgt + L4_VMEMMAP_START*8, 0
+	.quad	level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
 	.org    init_level4_pgt + L4_START_KERNEL*8, 0
 	/* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
 	.quad   level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+NEXT_PAGE(cpu_pgd)
+	.rept NR_CPUS
+	.fill	512,8,0
+	.endr
+#endif
+
 NEXT_PAGE(level3_ident_pgt)
 	.quad	level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
+#ifdef CONFIG_XEN
 	.fill	511, 8, 0
+#else
+	.quad	level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
+	.fill	510,8,0
+#endif
+
+NEXT_PAGE(level3_vmalloc_start_pgt)
+	.fill	512,8,0
+
+NEXT_PAGE(level3_vmalloc_end_pgt)
+	.fill	512,8,0
+
+NEXT_PAGE(level3_vmemmap_pgt)
+	.fill	L3_VMEMMAP_START,8,0
+	.quad	level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
+
 NEXT_PAGE(level2_ident_pgt)
-	/* Since I easily can, map the first 1G.
+	/* Since I easily can, map the first 2G.
 	 * Don't set NX because code runs from these pages.
 	 */
-	PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
-#endif
+	PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 2*PTRS_PER_PMD)
 
 NEXT_PAGE(level3_kernel_pgt)
 	.fill	L3_START_KERNEL,8,0
@@ -471,6 +516,9 @@ NEXT_PAGE(level3_kernel_pgt)
 	.quad	level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
 	.quad	level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
 
+NEXT_PAGE(level2_vmemmap_pgt)
+	.fill	512,8,0
+
 NEXT_PAGE(level2_kernel_pgt)
 	/*
 	 * 512 MB kernel mapping. We spend a full page on this pagetable
@@ -486,38 +534,64 @@ NEXT_PAGE(level2_kernel_pgt)
 		KERNEL_IMAGE_SIZE/PMD_SIZE)
 
 NEXT_PAGE(level2_fixmap_pgt)
-	.fill	506,8,0
-	.quad	level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
-	/* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
-	.fill	5,8,0
+	.fill	507,8,0
+	.quad	level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE
+	/* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */
+	.fill	4,8,0
 
-NEXT_PAGE(level1_fixmap_pgt)
+NEXT_PAGE(level1_vsyscall_pgt)
 	.fill	512,8,0
 
 #undef PMDS
 
-	.data
+	.align PAGE_SIZE
+ENTRY(cpu_gdt_table)
+	.rept NR_CPUS
+	.quad	0x0000000000000000	/* NULL descriptor */
+	.quad	0x00cf9b000000ffff	/* __KERNEL32_CS */
+	.quad	0x00af9b000000ffff	/* __KERNEL_CS */
+	.quad	0x00cf93000000ffff	/* __KERNEL_DS */
+	.quad	0x00cffb000000ffff	/* __USER32_CS */
+	.quad	0x00cff3000000ffff	/* __USER_DS, __USER32_DS  */
+	.quad	0x00affb000000ffff	/* __USER_CS */
+
+#ifdef CONFIG_PAX_KERNEXEC
+	.quad	0x00af9b000000ffff	/* __KERNEXEC_KERNEL_CS */
+#else
+	.quad	0x0			/* unused */
+#endif
+
+	.quad	0,0			/* TSS */
+	.quad	0,0			/* LDT */
+	.quad	0,0,0			/* three TLS descriptors */
+	.quad	0x0000f40000000000	/* node/CPU stored in limit */
+	/* asm/segment.h:GDT_ENTRIES must match this */
+
+	/* zero the remaining page */
+	.fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
+	.endr
+
 	.align 16
 	.globl early_gdt_descr
 early_gdt_descr:
 	.word	GDT_ENTRIES*8-1
 early_gdt_descr_base:
-	.quad	INIT_PER_CPU_VAR(gdt_page)
+	.quad	cpu_gdt_table
 
 ENTRY(phys_base)
 	/* This must match the first entry in level2_kernel_pgt */
 	.quad   0x0000000000000000
 
 #include "../../x86/xen/xen-head.S"
-	
-	.section .bss, "aw", @nobits
+
+	.section .rodata,"a",@progbits
 	.align L1_CACHE_BYTES
 ENTRY(idt_table)
-	.skip IDT_ENTRIES * 16
+	.fill 512,8,0
 
 	.align L1_CACHE_BYTES
 ENTRY(nmi_idt_table)
-	.skip IDT_ENTRIES * 16
+	.fill 512,8,0
 
 	__PAGE_ALIGNED_BSS
 NEXT_PAGE(empty_zero_page)
diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
index 0fa6912..37fce70 100644
--- a/arch/x86/kernel/i386_ksyms_32.c
+++ b/arch/x86/kernel/i386_ksyms_32.c
@@ -20,8 +20,12 @@ extern void cmpxchg8b_emu(void);
 EXPORT_SYMBOL(cmpxchg8b_emu);
 #endif
 
+EXPORT_SYMBOL_GPL(cpu_gdt_table);
+
 /* Networking helper routines. */
 EXPORT_SYMBOL(csum_partial_copy_generic);
+EXPORT_SYMBOL(csum_partial_copy_generic_to_user);
+EXPORT_SYMBOL(csum_partial_copy_generic_from_user);
 
 EXPORT_SYMBOL(__get_user_1);
 EXPORT_SYMBOL(__get_user_2);
@@ -37,3 +41,7 @@ EXPORT_SYMBOL(strstr);
 
 EXPORT_SYMBOL(csum_partial);
 EXPORT_SYMBOL(empty_zero_page);
+
+#ifdef CONFIG_PAX_KERNEXEC
+EXPORT_SYMBOL(__LOAD_PHYSICAL_ADDR);
+#endif
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index 245a71d..89d9ce4 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -55,7 +55,7 @@ static inline bool interrupted_kernel_fpu_idle(void)
 static inline bool interrupted_user_mode(void)
 {
 	struct pt_regs *regs = get_irq_regs();
-	return regs && user_mode_vm(regs);
+	return regs && user_mode(regs);
 }
 
 /*
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 9a5c460..84868423 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -110,7 +110,7 @@ static int i8259A_irq_pending(unsigned int irq)
 static void make_8259A_irq(unsigned int irq)
 {
 	disable_irq_nosync(irq);
-	io_apic_irqs &= ~(1<<irq);
+	io_apic_irqs &= ~(1UL<<irq);
 	irq_set_chip_and_handler_name(irq, &i8259A_chip, handle_level_irq,
 				      i8259A_chip.name);
 	enable_irq(irq);
@@ -209,7 +209,7 @@ spurious_8259A_irq:
 			       "spurious 8259A interrupt: IRQ%d.\n", irq);
 			spurious_irq_mask |= irqmask;
 		}
-		atomic_inc(&irq_err_count);
+		atomic_inc_unchecked(&irq_err_count);
 		/*
 		 * Theoretically we do not have to handle this IRQ,
 		 * but in Linux this does not cause problems and is
@@ -333,14 +333,16 @@ static void init_8259A(int auto_eoi)
 	/* (slave's support for AEOI in flat mode is to be investigated) */
 	outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
 
+	pax_open_kernel();
 	if (auto_eoi)
 		/*
 		 * In AEOI mode we just have to mask the interrupt
 		 * when acking.
 		 */
-		i8259A_chip.irq_mask_ack = disable_8259A_irq;
+		*(void **)&i8259A_chip.irq_mask_ack = disable_8259A_irq;
 	else
-		i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
+		*(void **)&i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
+	pax_close_kernel();
 
 	udelay(100);		/* wait for 8259A to initialize */
 
diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
index a979b5b..1d6db75 100644
--- a/arch/x86/kernel/io_delay.c
+++ b/arch/x86/kernel/io_delay.c
@@ -58,7 +58,7 @@ static int __init dmi_io_delay_0xed_port(const struct dmi_system_id *id)
  * Quirk table for systems that misbehave (lock up, etc.) if port
  * 0x80 is used:
  */
-static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
+static const struct dmi_system_id __initconst io_delay_0xed_port_dmi_table[] = {
 	{
 		.callback	= dmi_io_delay_0xed_port,
 		.ident		= "Compaq Presario V6000",
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index 4ddaf66..6292f4e 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -6,6 +6,7 @@
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/capability.h>
+#include <linux/security.h>
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/ioport.h>
@@ -28,6 +29,12 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 
 	if ((from + num <= from) || (from + num > IO_BITMAP_BITS))
 		return -EINVAL;
+#ifdef CONFIG_GRKERNSEC_IO
+	if (turn_on && grsec_disable_privio) {
+		gr_handle_ioperm();
+		return -EPERM;
+	}
+#endif
 	if (turn_on && !capable(CAP_SYS_RAWIO))
 		return -EPERM;
 
@@ -54,7 +61,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 	 * because the ->io_bitmap_max value must match the bitmap
 	 * contents:
 	 */
-	tss = &per_cpu(init_tss, get_cpu());
+	tss = init_tss + get_cpu();
 
 	if (turn_on)
 		bitmap_clear(t->io_bitmap_ptr, from, num);
@@ -103,6 +110,12 @@ SYSCALL_DEFINE1(iopl, unsigned int, level)
 		return -EINVAL;
 	/* Trying to gain more privileges? */
 	if (level > old) {
+#ifdef CONFIG_GRKERNSEC_IO
+		if (grsec_disable_privio) {
+			gr_handle_iopl();
+			return -EPERM;
+		}
+#endif
 		if (!capable(CAP_SYS_RAWIO))
 			return -EPERM;
 	}
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 84b7789..e65e8be 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -18,7 +18,7 @@
 #include <asm/mce.h>
 #include <asm/hw_irq.h>
 
-atomic_t irq_err_count;
+atomic_unchecked_t irq_err_count;
 
 /* Function pointer for generic interrupt vector handling */
 void (*x86_platform_ipi_callback)(void) = NULL;
@@ -122,9 +122,9 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 		seq_printf(p, "%10u ", per_cpu(mce_poll_count, j));
 	seq_printf(p, "  Machine check polls\n");
 #endif
-	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
+	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
 #if defined(CONFIG_X86_IO_APIC)
-	seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count));
+	seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read_unchecked(&irq_mis_count));
 #endif
 	return 0;
 }
@@ -164,7 +164,7 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
 
 u64 arch_irq_stat(void)
 {
-	u64 sum = atomic_read(&irq_err_count);
+	u64 sum = atomic_read_unchecked(&irq_err_count);
 	return sum;
 }
 
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 344faf8..355f60d 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -39,7 +39,7 @@ static int check_stack_overflow(void)
 	__asm__ __volatile__("andl %%esp,%0" :
 			     "=r" (sp) : "0" (THREAD_SIZE - 1));
 
-	return sp < (sizeof(struct thread_info) + STACK_WARN);
+	return sp < STACK_WARN;
 }
 
 static void print_stack_overflow(void)
@@ -59,8 +59,8 @@ static inline void print_stack_overflow(void) { }
  * per-CPU IRQ handling contexts (thread information and stack)
  */
 union irq_ctx {
-	struct thread_info      tinfo;
-	u32                     stack[THREAD_SIZE/sizeof(u32)];
+	unsigned long		previous_esp;
+	u32			stack[THREAD_SIZE/sizeof(u32)];
 } __attribute__((aligned(THREAD_SIZE)));
 
 static DEFINE_PER_CPU(union irq_ctx *, hardirq_ctx);
@@ -80,10 +80,9 @@ static void call_on_stack(void *func, void *stack)
 static inline int
 execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
 {
-	union irq_ctx *curctx, *irqctx;
+	union irq_ctx *irqctx;
 	u32 *isp, arg1, arg2;
 
-	curctx = (union irq_ctx *) current_thread_info();
 	irqctx = __this_cpu_read(hardirq_ctx);
 
 	/*
@@ -92,16 +91,16 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
 	 * handler) we can't do that and just have to keep using the
 	 * current stack (which is the irq stack already after all)
 	 */
-	if (unlikely(curctx == irqctx))
+	if (unlikely((void *)current_stack_pointer - (void *)irqctx < THREAD_SIZE))
 		return 0;
 
 	/* build the stack frame on the IRQ stack */
-	isp = (u32 *) ((char *)irqctx + sizeof(*irqctx));
-	irqctx->tinfo.task = curctx->tinfo.task;
-	irqctx->tinfo.previous_esp = current_stack_pointer;
+	isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8);
+	irqctx->previous_esp = current_stack_pointer;
 
-	/* Copy the preempt_count so that the [soft]irq checks work. */
-	irqctx->tinfo.preempt_count = curctx->tinfo.preempt_count;
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	__set_fs(MAKE_MM_SEG(0));
+#endif
 
 	if (unlikely(overflow))
 		call_on_stack(print_stack_overflow, isp);
@@ -113,6 +112,11 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
 		     :  "0" (irq),   "1" (desc),  "2" (isp),
 			"D" (desc->handle_irq)
 		     : "memory", "cc", "ecx");
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	__set_fs(current_thread_info()->addr_limit);
+#endif
+
 	return 1;
 }
 
@@ -121,29 +125,14 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
  */
 void __cpuinit irq_ctx_init(int cpu)
 {
-	union irq_ctx *irqctx;
-
 	if (per_cpu(hardirq_ctx, cpu))
 		return;
 
-	irqctx = page_address(alloc_pages_node(cpu_to_node(cpu),
-					       THREADINFO_GFP,
-					       THREAD_SIZE_ORDER));
-	memset(&irqctx->tinfo, 0, sizeof(struct thread_info));
-	irqctx->tinfo.cpu		= cpu;
-	irqctx->tinfo.preempt_count	= HARDIRQ_OFFSET;
-	irqctx->tinfo.addr_limit	= MAKE_MM_SEG(0);
-
-	per_cpu(hardirq_ctx, cpu) = irqctx;
-
-	irqctx = page_address(alloc_pages_node(cpu_to_node(cpu),
-					       THREADINFO_GFP,
-					       THREAD_SIZE_ORDER));
-	memset(&irqctx->tinfo, 0, sizeof(struct thread_info));
-	irqctx->tinfo.cpu		= cpu;
-	irqctx->tinfo.addr_limit	= MAKE_MM_SEG(0);
-
-	per_cpu(softirq_ctx, cpu) = irqctx;
+	per_cpu(hardirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
+	per_cpu(softirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
+ 
+ 	printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
+ 	       cpu, per_cpu(hardirq_ctx, cpu),  per_cpu(softirq_ctx, cpu));
 
 	printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
 	       cpu, per_cpu(hardirq_ctx, cpu),  per_cpu(softirq_ctx, cpu));
@@ -152,7 +141,6 @@ void __cpuinit irq_ctx_init(int cpu)
 asmlinkage void do_softirq(void)
 {
 	unsigned long flags;
-	struct thread_info *curctx;
 	union irq_ctx *irqctx;
 	u32 *isp;
 
@@ -162,15 +150,22 @@ asmlinkage void do_softirq(void)
 	local_irq_save(flags);
 
 	if (local_softirq_pending()) {
-		curctx = current_thread_info();
 		irqctx = __this_cpu_read(softirq_ctx);
-		irqctx->tinfo.task = curctx->task;
-		irqctx->tinfo.previous_esp = current_stack_pointer;
+		irqctx->previous_esp = current_stack_pointer;
 
 		/* build the stack frame on the softirq stack */
-		isp = (u32 *) ((char *)irqctx + sizeof(*irqctx));
+		isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8);
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+		__set_fs(MAKE_MM_SEG(0));
+#endif
 
 		call_on_stack(__do_softirq, isp);
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+		__set_fs(current_thread_info()->addr_limit);
+#endif
+
 		/*
 		 * Shouldn't happen, we returned above if in_interrupt():
 		 */
@@ -191,7 +186,7 @@ bool handle_irq(unsigned irq, struct pt_regs *regs)
 	if (unlikely(!desc))
 		return false;
 
-	if (user_mode_vm(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
+	if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
 		if (unlikely(overflow))
 			print_stack_overflow();
 		desc->handle_irq(irq, desc);
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index d04d3ec..ea4b374 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -44,7 +44,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 	u64 estack_top, estack_bottom;
 	u64 curbase = (u64)task_stack_page(current);
 
-	if (user_mode_vm(regs))
+	if (user_mode(regs))
 		return;
 
 	if (regs->sp >= curbase + sizeof(struct thread_info) +
diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c
index dc1404b..bbc43e7 100644
--- a/arch/x86/kernel/kdebugfs.c
+++ b/arch/x86/kernel/kdebugfs.c
@@ -27,7 +27,7 @@ struct setup_data_node {
 	u32 len;
 };
 
-static ssize_t setup_data_read(struct file *file, char __user *user_buf,
+static ssize_t __size_overflow(3) setup_data_read(struct file *file, char __user *user_buf,
 			       size_t count, loff_t *ppos)
 {
 	struct setup_data_node *node = file->private_data;
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index 836f832..a8bda67 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -127,11 +127,11 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
 #ifdef CONFIG_X86_32
 	switch (regno) {
 	case GDB_SS:
-		if (!user_mode_vm(regs))
+		if (!user_mode(regs))
 			*(unsigned long *)mem = __KERNEL_DS;
 		break;
 	case GDB_SP:
-		if (!user_mode_vm(regs))
+		if (!user_mode(regs))
 			*(unsigned long *)mem = kernel_stack_pointer(regs);
 		break;
 	case GDB_GS:
@@ -229,7 +229,10 @@ static void kgdb_correct_hw_break(void)
 		bp->attr.bp_addr = breakinfo[breakno].addr;
 		bp->attr.bp_len = breakinfo[breakno].len;
 		bp->attr.bp_type = breakinfo[breakno].type;
-		info->address = breakinfo[breakno].addr;
+		if (breakinfo[breakno].type == X86_BREAKPOINT_EXECUTE)
+			info->address = ktla_ktva(breakinfo[breakno].addr);
+		else
+			info->address = breakinfo[breakno].addr;
 		info->len = breakinfo[breakno].len;
 		info->type = breakinfo[breakno].type;
 		val = arch_install_hw_breakpoint(bp);
@@ -476,12 +479,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
 	case 'k':
 		/* clear the trace bit */
 		linux_regs->flags &= ~X86_EFLAGS_TF;
-		atomic_set(&kgdb_cpu_doing_single_step, -1);
+		atomic_set_unchecked(&kgdb_cpu_doing_single_step, -1);
 
 		/* set the trace bit if we're stepping */
 		if (remcomInBuffer[0] == 's') {
 			linux_regs->flags |= X86_EFLAGS_TF;
-			atomic_set(&kgdb_cpu_doing_single_step,
+			atomic_set_unchecked(&kgdb_cpu_doing_single_step,
 				   raw_smp_processor_id());
 		}
 
@@ -546,7 +549,7 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd)
 
 	switch (cmd) {
 	case DIE_DEBUG:
-		if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
+		if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
 			if (user_mode(regs))
 				return single_step_cont(regs, args);
 			break;
@@ -751,11 +754,11 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
 #endif /* CONFIG_DEBUG_RODATA */
 
 	bpt->type = BP_BREAKPOINT;
-	err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr,
+	err = probe_kernel_read(bpt->saved_instr, ktla_ktva((char *)bpt->bpt_addr),
 				BREAK_INSTR_SIZE);
 	if (err)
 		return err;
-	err = probe_kernel_write((char *)bpt->bpt_addr,
+	err = probe_kernel_write(ktla_ktva((char *)bpt->bpt_addr),
 				 arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE);
 #ifdef CONFIG_DEBUG_RODATA
 	if (!err)
@@ -768,7 +771,7 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
 		return -EBUSY;
 	text_poke((void *)bpt->bpt_addr, arch_kgdb_ops.gdb_bpt_instr,
 		  BREAK_INSTR_SIZE);
-	err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
+	err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
 	if (err)
 		return err;
 	if (memcmp(opc, arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE))
@@ -793,13 +796,13 @@ int kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt)
 	if (mutex_is_locked(&text_mutex))
 		goto knl_write;
 	text_poke((void *)bpt->bpt_addr, bpt->saved_instr, BREAK_INSTR_SIZE);
-	err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
+	err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
 	if (err || memcmp(opc, bpt->saved_instr, BREAK_INSTR_SIZE))
 		goto knl_write;
 	return err;
 knl_write:
 #endif /* CONFIG_DEBUG_RODATA */
-	return probe_kernel_write((char *)bpt->bpt_addr,
+	return probe_kernel_write(ktla_ktva((char *)bpt->bpt_addr),
 				  (char *)bpt->saved_instr, BREAK_INSTR_SIZE);
 }
 
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 7bfe318..383d238 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -119,9 +119,12 @@ static void __kprobes __synthesize_relative_insn(void *from, void *to, u8 op)
 		s32 raddr;
 	} __packed *insn;
 
-	insn = (struct __arch_relative_insn *)from;
+	insn = (struct __arch_relative_insn *)ktla_ktva(from);
+
+	pax_open_kernel();
 	insn->raddr = (s32)((long)(to) - ((long)(from) + 5));
 	insn->op = op;
+	pax_close_kernel();
 }
 
 /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
@@ -164,7 +167,7 @@ int __kprobes can_boost(kprobe_opcode_t *opcodes)
 	kprobe_opcode_t opcode;
 	kprobe_opcode_t *orig_opcodes = opcodes;
 
-	if (search_exception_tables((unsigned long)opcodes))
+	if (search_exception_tables(ktva_ktla((unsigned long)opcodes)))
 		return 0;	/* Page fault may occur on this address. */
 
 retry:
@@ -238,9 +241,9 @@ __recover_probed_insn(kprobe_opcode_t *buf, unsigned long addr)
 	 *  for the first byte, we can recover the original instruction
 	 *  from it and kp->opcode.
 	 */
-	memcpy(buf, kp->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
+	memcpy(buf, ktla_ktva(kp->addr), MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
 	buf[0] = kp->opcode;
-	return (unsigned long)buf;
+	return ktva_ktla((unsigned long)buf);
 }
 
 /*
@@ -332,7 +335,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src)
 	/* Another subsystem puts a breakpoint, failed to recover */
 	if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION)
 		return 0;
+	pax_open_kernel();
 	memcpy(dest, insn.kaddr, insn.length);
+	pax_close_kernel();
 
 #ifdef CONFIG_X86_64
 	if (insn_rip_relative(&insn)) {
@@ -355,7 +360,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src)
 		newdisp = (u8 *) src + (s64) insn.displacement.value - (u8 *) dest;
 		BUG_ON((s64) (s32) newdisp != newdisp); /* Sanity check.  */
 		disp = (u8 *) dest + insn_offset_displacement(&insn);
+		pax_open_kernel();
 		*(s32 *) disp = (s32) newdisp;
+		pax_close_kernel();
 	}
 #endif
 	return insn.length;
@@ -488,7 +495,7 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k
 		 * nor set current_kprobe, because it doesn't use single
 		 * stepping.
 		 */
-		regs->ip = (unsigned long)p->ainsn.insn;
+		regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
 		preempt_enable_no_resched();
 		return;
 	}
@@ -505,9 +512,9 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k
 	regs->flags &= ~X86_EFLAGS_IF;
 	/* single step inline if the instruction is an int3 */
 	if (p->opcode == BREAKPOINT_INSTRUCTION)
-		regs->ip = (unsigned long)p->addr;
+		regs->ip = ktla_ktva((unsigned long)p->addr);
 	else
-		regs->ip = (unsigned long)p->ainsn.insn;
+		regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
 }
 
 /*
@@ -586,7 +593,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 				setup_singlestep(p, regs, kcb, 0);
 			return 1;
 		}
-	} else if (*addr != BREAKPOINT_INSTRUCTION) {
+	} else if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) {
 		/*
 		 * The breakpoint instruction was removed right
 		 * after we hit it.  Another cpu has removed
@@ -632,6 +639,9 @@ static void __used __kprobes kretprobe_trampoline_holder(void)
 			"	movq %rax, 152(%rsp)\n"
 			RESTORE_REGS_STRING
 			"	popfq\n"
+#ifdef KERNEXEC_PLUGIN
+			"	btsq $63,(%rsp)\n"
+#endif
 #else
 			"	pushf\n"
 			SAVE_REGS_STRING
@@ -769,7 +779,7 @@ static void __kprobes
 resume_execution(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb)
 {
 	unsigned long *tos = stack_addr(regs);
-	unsigned long copy_ip = (unsigned long)p->ainsn.insn;
+	unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn);
 	unsigned long orig_ip = (unsigned long)p->addr;
 	kprobe_opcode_t *insn = p->ainsn.insn;
 
@@ -951,7 +961,7 @@ kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *d
 	struct die_args *args = data;
 	int ret = NOTIFY_DONE;
 
-	if (args->regs && user_mode_vm(args->regs))
+	if (args->regs && user_mode(args->regs))
 		return ret;
 
 	switch (val) {
diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
index 76dc6f0..66bdfc3 100644
--- a/arch/x86/kernel/kprobes/opt.c
+++ b/arch/x86/kernel/kprobes/opt.c
@@ -79,6 +79,7 @@ found:
 /* Insert a move instruction which sets a pointer to eax/rdi (1st arg). */
 static void __kprobes synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
 {
+	pax_open_kernel();
 #ifdef CONFIG_X86_64
 	*addr++ = 0x48;
 	*addr++ = 0xbf;
@@ -86,6 +87,7 @@ static void __kprobes synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long v
 	*addr++ = 0xb8;
 #endif
 	*(unsigned long *)addr = val;
+	pax_close_kernel();
 }
 
 static void __used __kprobes kprobes_optinsn_template_holder(void)
@@ -338,7 +340,7 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op)
 	 * Verify if the address gap is in 2GB range, because this uses
 	 * a relative jump.
 	 */
-	rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE;
+	rel = (long)op->optinsn.insn - ktla_ktva((long)op->kp.addr) + RELATIVEJUMP_SIZE;
 	if (abs(rel) > 0x7fffffff)
 		return -ERANGE;
 
@@ -353,16 +355,18 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op)
 	op->optinsn.size = ret;
 
 	/* Copy arch-dep-instance from template */
-	memcpy(buf, &optprobe_template_entry, TMPL_END_IDX);
+	pax_open_kernel();
+	memcpy(buf, ktla_ktva(&optprobe_template_entry), TMPL_END_IDX);
+	pax_close_kernel();
 
 	/* Set probe information */
 	synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op);
 
 	/* Set probe function call */
-	synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback);
+	synthesize_relcall(ktva_ktla(buf) + TMPL_CALL_IDX, optimized_callback);
 
 	/* Set returning jmp instruction at the tail of out-of-line buffer */
-	synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size,
+	synthesize_reljump(ktva_ktla(buf) + TMPL_END_IDX + op->optinsn.size,
 			   (u8 *)op->kp.addr + op->optinsn.size);
 
 	flush_icache_range((unsigned long) buf,
@@ -385,7 +389,7 @@ static void __kprobes setup_optimize_kprobe(struct text_poke_param *tprm,
 			((long)op->kp.addr + RELATIVEJUMP_SIZE));
 
 	/* Backup instructions which will be replaced by jump address */
-	memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE,
+	memcpy(op->optinsn.copied_insn, ktla_ktva(op->kp.addr) + INT3_SIZE,
 	       RELATIVE_ADDR_SIZE);
 
 	insn_buf[0] = RELATIVEJUMP_OPCODE;
@@ -483,7 +487,7 @@ setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter)
 		/* This kprobe is really able to run optimized path. */
 		op = container_of(p, struct optimized_kprobe, kp);
 		/* Detour through copied instructions */
-		regs->ip = (unsigned long)op->optinsn.insn + TMPL_END_IDX;
+		regs->ip = ktva_ktla((unsigned long)op->optinsn.insn) + TMPL_END_IDX;
 		if (!reenter)
 			reset_current_kprobe();
 		preempt_enable_no_resched();
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index b686a90..60d36fb 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -453,7 +453,7 @@ static int __cpuinit kvm_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata kvm_cpu_notifier = {
+static struct notifier_block kvm_cpu_notifier = {
         .notifier_call  = kvm_cpu_notify,
 };
 #endif
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index ebc9873..1b9724b 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
 	if (reload) {
 #ifdef CONFIG_SMP
 		preempt_disable();
-		load_LDT(pc);
+		load_LDT_nolock(pc);
 		if (!cpumask_equal(mm_cpumask(current->mm),
 				   cpumask_of(smp_processor_id())))
 			smp_call_function(flush_ldt, current->mm, 1);
 		preempt_enable();
 #else
-		load_LDT(pc);
+		load_LDT_nolock(pc);
 #endif
 	}
 	if (oldsize) {
@@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
 		return err;
 
 	for (i = 0; i < old->size; i++)
-		write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE);
+		write_ldt_entry(new->ldt, i, old->ldt + i);
 	return 0;
 }
 
@@ -115,6 +115,24 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 		retval = copy_ldt(&mm->context, &old_mm->context);
 		mutex_unlock(&old_mm->context.lock);
 	}
+
+	if (tsk == current) {
+		mm->context.vdso = 0;
+
+#ifdef CONFIG_X86_32
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+		mm->context.user_cs_base = 0UL;
+		mm->context.user_cs_limit = ~0UL;
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
+		cpus_clear(mm->context.cpu_user_cs_mask);
+#endif
+
+#endif
+#endif
+
+	}
+
 	return retval;
 }
 
@@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 		}
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) {
+		error = -EINVAL;
+		goto out_unlock;
+	}
+#endif
+
 	fill_ldt(&ldt, &ldt_info);
 	if (oldmode)
 		ldt.avl = 0;
diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index 5b19e4d..6476a76 100644
--- a/arch/x86/kernel/machine_kexec_32.c
+++ b/arch/x86/kernel/machine_kexec_32.c
@@ -26,7 +26,7 @@
 #include <asm/cacheflush.h>
 #include <asm/debugreg.h>
 
-static void set_idt(void *newidt, __u16 limit)
+static void set_idt(struct desc_struct *newidt, __u16 limit)
 {
 	struct desc_ptr curidt;
 
@@ -38,7 +38,7 @@ static void set_idt(void *newidt, __u16 limit)
 }
 
 
-static void set_gdt(void *newgdt, __u16 limit)
+static void set_gdt(struct desc_struct *newgdt, __u16 limit)
 {
 	struct desc_ptr curgdt;
 
@@ -216,7 +216,7 @@ void machine_kexec(struct kimage *image)
 	}
 
 	control_page = page_address(image->control_code_page);
-	memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE);
+	memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE);
 
 	relocate_kernel_ptr = control_page;
 	page_list[PA_CONTROL_PAGE] = __pa(control_page);
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index 22db92b..d546bec 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -513,7 +513,7 @@ mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu)
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata mc_cpu_notifier = {
+static struct notifier_block mc_cpu_notifier = {
 	.notifier_call	= mc_cpu_callback,
 };
 
diff --git a/arch/x86/kernel/microcode_intel.c b/arch/x86/kernel/microcode_intel.c
index 5fb2ceb..3ae90bb 100644
--- a/arch/x86/kernel/microcode_intel.c
+++ b/arch/x86/kernel/microcode_intel.c
@@ -293,13 +293,13 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device,
 
 static int get_ucode_user(void *to, const void *from, size_t n)
 {
-	return copy_from_user(to, from, n);
+	return copy_from_user(to, (const void __force_user *)from, n);
 }
 
 static enum ucode_state
 request_microcode_user(int cpu, const void __user *buf, size_t size)
 {
-	return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
+	return generic_load_microcode(cpu, (__force_kernel void *)buf, size, &get_ucode_user);
 }
 
 static void microcode_fini_cpu(int cpu)
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 216a4d7..228255a 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -43,15 +43,60 @@ do {							\
 } while (0)
 #endif
 
-void *module_alloc(unsigned long size)
+static inline void *__module_alloc(unsigned long size, pgprot_t prot)
 {
-	if (PAGE_ALIGN(size) > MODULES_LEN)
+	if (!size || PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
+				GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, prot,
 				-1, __builtin_return_address(0));
 }
 
+void *module_alloc(unsigned long size)
+{
+
+#ifdef CONFIG_PAX_KERNEXEC
+	return __module_alloc(size, PAGE_KERNEL);
+#else
+	return __module_alloc(size, PAGE_KERNEL_EXEC);
+#endif
+
+}
+
+#ifdef CONFIG_PAX_KERNEXEC
+#ifdef CONFIG_X86_32
+void *module_alloc_exec(unsigned long size)
+{
+	struct vm_struct *area;
+
+	if (size == 0)
+		return NULL;
+
+	area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_EXEC_VADDR, (unsigned long)&MODULES_EXEC_END);
+	return area ? area->addr : NULL;
+}
+EXPORT_SYMBOL(module_alloc_exec);
+
+void module_free_exec(struct module *mod, void *module_region)
+{
+	vunmap(module_region);
+}
+EXPORT_SYMBOL(module_free_exec);
+#else
+void module_free_exec(struct module *mod, void *module_region)
+{
+	module_free(mod, module_region);
+}
+EXPORT_SYMBOL(module_free_exec);
+
+void *module_alloc_exec(unsigned long size)
+{
+	return __module_alloc(size, PAGE_KERNEL_RX);
+}
+EXPORT_SYMBOL(module_alloc_exec);
+#endif
+#endif
+
 #ifdef CONFIG_X86_32
 int apply_relocate(Elf32_Shdr *sechdrs,
 		   const char *strtab,
@@ -62,14 +107,16 @@ int apply_relocate(Elf32_Shdr *sechdrs,
 	unsigned int i;
 	Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
 	Elf32_Sym *sym;
-	uint32_t *location;
+	uint32_t *plocation, location;
 
 	DEBUGP("Applying relocate section %u to %u\n",
 	       relsec, sechdrs[relsec].sh_info);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
-		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
-			+ rel[i].r_offset;
+		plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset;
+		location = (uint32_t)plocation;
+		if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR)
+			plocation = ktla_ktva((void *)plocation);
 		/* This is the symbol it is referring to.  Note that all
 		   undefined symbols have been resolved.  */
 		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
@@ -78,11 +125,15 @@ int apply_relocate(Elf32_Shdr *sechdrs,
 		switch (ELF32_R_TYPE(rel[i].r_info)) {
 		case R_386_32:
 			/* We add the value into the location given */
-			*location += sym->st_value;
+			pax_open_kernel();
+			*plocation += sym->st_value;
+			pax_close_kernel();
 			break;
 		case R_386_PC32:
 			/* Add the value, subtract its position */
-			*location += sym->st_value - (uint32_t)location;
+			pax_open_kernel();
+			*plocation += sym->st_value - location;
+			pax_close_kernel();
 			break;
 		default:
 			pr_err("%s: Unknown relocation: %u\n",
@@ -127,21 +178,30 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 		case R_X86_64_NONE:
 			break;
 		case R_X86_64_64:
+			pax_open_kernel();
 			*(u64 *)loc = val;
+			pax_close_kernel();
 			break;
 		case R_X86_64_32:
+			pax_open_kernel();
 			*(u32 *)loc = val;
+			pax_close_kernel();
 			if (val != *(u32 *)loc)
 				goto overflow;
 			break;
 		case R_X86_64_32S:
+			pax_open_kernel();
 			*(s32 *)loc = val;
+			pax_close_kernel();
 			if ((s64)val != *(s32 *)loc)
 				goto overflow;
 			break;
 		case R_X86_64_PC32:
 			val -= (u64)loc;
+			pax_open_kernel();
 			*(u32 *)loc = val;
+			pax_close_kernel();
+
 #if 0
 			if ((s64)val != *(s32 *)loc)
 				goto overflow;
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index ce13049..e2e9c3c 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -233,7 +233,7 @@ static int __cpuinit msr_class_cpu_callback(struct notifier_block *nfb,
 	return notifier_from_errno(err);
 }
 
-static struct notifier_block __refdata msr_class_cpu_notifier = {
+static struct notifier_block msr_class_cpu_notifier = {
 	.notifier_call = msr_class_cpu_callback,
 };
 
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index 6030805..2d33f21 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -105,7 +105,7 @@ static int __kprobes nmi_handle(unsigned int type, struct pt_regs *regs, bool b2
 	return handled;
 }
 
-int __register_nmi_handler(unsigned int type, struct nmiaction *action)
+int __register_nmi_handler(unsigned int type, const struct nmiaction *action)
 {
 	struct nmi_desc *desc = nmi_to_desc(type);
 	unsigned long flags;
@@ -129,9 +129,9 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
 	 * event confuses some handlers (kdump uses this flag)
 	 */
 	if (action->flags & NMI_FLAG_FIRST)
-		list_add_rcu(&action->list, &desc->head);
+		pax_list_add_rcu((struct list_head *)&action->list, &desc->head);
 	else
-		list_add_tail_rcu(&action->list, &desc->head);
+		pax_list_add_tail_rcu((struct list_head *)&action->list, &desc->head);
 	
 	spin_unlock_irqrestore(&desc->lock, flags);
 	return 0;
@@ -154,7 +154,7 @@ void unregister_nmi_handler(unsigned int type, const char *name)
 		if (!strcmp(n->name, name)) {
 			WARN(in_nmi(),
 				"Trying to free NMI (%s) from NMI context!\n", n->name);
-			list_del_rcu(&n->list);
+			pax_list_del_rcu((struct list_head *)&n->list);
 			break;
 		}
 	}
@@ -479,6 +479,17 @@ static inline void nmi_nesting_postprocess(void)
 dotraplinkage notrace __kprobes void
 do_nmi(struct pt_regs *regs, long error_code)
 {
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	if (!user_mode(regs)) {
+		unsigned long cs = regs->cs & 0xFFFF;
+		unsigned long ip = ktva_ktla(regs->ip);
+
+		if ((cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS) && ip <= (unsigned long)_etext)
+			regs->ip = ip;
+	}
+#endif
+
 	nmi_nesting_preprocess(regs);
 
 	nmi_enter();
diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
index 6d9582e..f746287 100644
--- a/arch/x86/kernel/nmi_selftest.c
+++ b/arch/x86/kernel/nmi_selftest.c
@@ -43,7 +43,7 @@ static void __init init_nmi_testsuite(void)
 {
 	/* trap all the unknown NMIs we may generate */
 	register_nmi_handler(NMI_UNKNOWN, nmi_unk_cb, 0, "nmi_selftest_unk",
-			__initdata);
+			__initconst);
 }
 
 static void __init cleanup_nmi_testsuite(void)
@@ -66,7 +66,7 @@ static void __init test_nmi_ipi(struct cpumask *mask)
 	unsigned long timeout;
 
 	if (register_nmi_handler(NMI_LOCAL, test_nmi_ipi_callback,
-				 NMI_FLAG_FIRST, "nmi_selftest", __initdata)) {
+				 NMI_FLAG_FIRST, "nmi_selftest", __initconst)) {
 		nmi_fail = FAILURE;
 		return;
 	}
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 676b8c7..870ba04 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -13,7 +13,7 @@ default_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
 	arch_spin_lock(lock);
 }
 
-struct pv_lock_ops pv_lock_ops = {
+struct pv_lock_ops pv_lock_ops __read_only = {
 #ifdef CONFIG_SMP
 	.spin_is_locked = __ticket_spin_is_locked,
 	.spin_is_contended = __ticket_spin_is_contended,
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 8bfb335..c1463c6 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -55,6 +55,9 @@ u64 _paravirt_ident_64(u64 x)
 {
 	return x;
 }
+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
+PV_CALLEE_SAVE_REGS_THUNK(_paravirt_ident_64);
+#endif
 
 void __init default_banner(void)
 {
@@ -147,15 +150,19 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
 	if (opfunc == NULL)
 		/* If there's no function, patch it with a ud2a (BUG) */
 		ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
-	else if (opfunc == _paravirt_nop)
+	else if (opfunc == (void *)_paravirt_nop)
 		/* If the operation is a nop, then nop the callsite */
 		ret = paravirt_patch_nop();
 
 	/* identity functions just return their single argument */
-	else if (opfunc == _paravirt_ident_32)
+	else if (opfunc == (void *)_paravirt_ident_32)
 		ret = paravirt_patch_ident_32(insnbuf, len);
-	else if (opfunc == _paravirt_ident_64)
+	else if (opfunc == (void *)_paravirt_ident_64)
 		ret = paravirt_patch_ident_64(insnbuf, len);
+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
+	else if (opfunc == (void *)__raw_callee_save__paravirt_ident_64)
+		ret = paravirt_patch_ident_64(insnbuf, len);
+#endif
 
 	else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
 		 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) ||
@@ -180,7 +187,7 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
 	if (insn_len > len || start == NULL)
 		insn_len = len;
 	else
-		memcpy(insnbuf, start, insn_len);
+		memcpy(insnbuf, ktla_ktva(start), insn_len);
 
 	return insn_len;
 }
@@ -304,7 +311,7 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
 	return this_cpu_read(paravirt_lazy_mode);
 }
 
-struct pv_info pv_info = {
+struct pv_info pv_info __read_only = {
 	.name = "bare hardware",
 	.paravirt_enabled = 0,
 	.kernel_rpl = 0,
@@ -315,16 +322,16 @@ struct pv_info pv_info = {
 #endif
 };
 
-struct pv_init_ops pv_init_ops = {
+struct pv_init_ops pv_init_ops __read_only = {
 	.patch = native_patch,
 };
 
-struct pv_time_ops pv_time_ops = {
+struct pv_time_ops pv_time_ops __read_only = {
 	.sched_clock = native_sched_clock,
 	.steal_clock = native_steal_clock,
 };
 
-struct pv_irq_ops pv_irq_ops = {
+struct pv_irq_ops pv_irq_ops __read_only = {
 	.save_fl = __PV_IS_CALLEE_SAVE(native_save_fl),
 	.restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl),
 	.irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable),
@@ -336,7 +343,7 @@ struct pv_irq_ops pv_irq_ops = {
 #endif
 };
 
-struct pv_cpu_ops pv_cpu_ops = {
+struct pv_cpu_ops pv_cpu_ops __read_only = {
 	.cpuid = native_cpuid,
 	.get_debugreg = native_get_debugreg,
 	.set_debugreg = native_set_debugreg,
@@ -395,21 +402,26 @@ struct pv_cpu_ops pv_cpu_ops = {
 	.end_context_switch = paravirt_nop,
 };
 
-struct pv_apic_ops pv_apic_ops = {
+struct pv_apic_ops pv_apic_ops __read_only= {
 #ifdef CONFIG_X86_LOCAL_APIC
 	.startup_ipi_hook = paravirt_nop,
 #endif
 };
 
-#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
+#ifdef CONFIG_X86_32
+#ifdef CONFIG_X86_PAE
+/* 64-bit pagetable entries */
+#define PTE_IDENT	PV_CALLEE_SAVE(_paravirt_ident_64)
+#else
 /* 32-bit pagetable entries */
 #define PTE_IDENT	__PV_IS_CALLEE_SAVE(_paravirt_ident_32)
+#endif
 #else
 /* 64-bit pagetable entries */
 #define PTE_IDENT	__PV_IS_CALLEE_SAVE(_paravirt_ident_64)
 #endif
 
-struct pv_mmu_ops pv_mmu_ops = {
+struct pv_mmu_ops pv_mmu_ops __read_only = {
 
 	.read_cr2 = native_read_cr2,
 	.write_cr2 = native_write_cr2,
@@ -459,6 +471,7 @@ struct pv_mmu_ops pv_mmu_ops = {
 	.make_pud = PTE_IDENT,
 
 	.set_pgd = native_set_pgd,
+	.set_pgd_batched = native_set_pgd_batched,
 #endif
 #endif /* PAGETABLE_LEVELS >= 3 */
 
@@ -479,6 +492,12 @@ struct pv_mmu_ops pv_mmu_ops = {
 	},
 
 	.set_fixmap = native_set_fixmap,
+
+#ifdef CONFIG_PAX_KERNEXEC
+	.pax_open_kernel = native_pax_open_kernel,
+	.pax_close_kernel = native_pax_close_kernel,
+#endif
+
 };
 
 EXPORT_SYMBOL_GPL(pv_time_ops);
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 299d493..2ccb0ee 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1339,7 +1339,7 @@ static void __init get_tce_space_from_tar(void)
 			tce_space = be64_to_cpu(readq(target));
 			tce_space = tce_space & TAR_SW_BITS;
 
-			tce_space = tce_space & (~specified_table_size);
+			tce_space = tce_space & (~(unsigned long)specified_table_size);
 			info->tce_space = (u64 *)__va(tce_space);
 		}
 	}
diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c
index 35ccf75..7a15747 100644
--- a/arch/x86/kernel/pci-iommu_table.c
+++ b/arch/x86/kernel/pci-iommu_table.c
@@ -2,7 +2,7 @@
 #include <asm/iommu_table.h>
 #include <linux/string.h>
 #include <linux/kallsyms.h>
-
+#include <linux/sched.h>
 
 #define DEBUG 1
 
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 6c483ba..d10ce2f 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -32,7 +32,7 @@ static void x86_swiotlb_free_coherent(struct device *dev, size_t size,
 				      void *vaddr, dma_addr_t dma_addr,
 				      struct dma_attrs *attrs)
 {
-	swiotlb_free_coherent(dev, size, vaddr, dma_addr);
+	swiotlb_free_coherent(dev, size, vaddr, dma_addr, attrs);
 }
 
 static struct dma_map_ops swiotlb_dma_ops = {
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 14ae100..752a4f6 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -36,7 +36,8 @@
  * section. Since TSS's are completely CPU-local, we want them
  * on exact cacheline boundaries, to eliminate cacheline ping-pong.
  */
-DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
+struct tss_struct init_tss[NR_CPUS] ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS };
+EXPORT_SYMBOL(init_tss);
 
 #ifdef CONFIG_X86_64
 static DEFINE_PER_CPU(unsigned char, is_idle);
@@ -92,7 +93,7 @@ void arch_task_cache_init(void)
         task_xstate_cachep =
         	kmem_cache_create("task_xstate", xstate_size,
 				  __alignof__(union thread_xstate),
-				  SLAB_PANIC | SLAB_NOTRACK, NULL);
+				  SLAB_PANIC | SLAB_NOTRACK | SLAB_USERCOPY, NULL);
 }
 
 /*
@@ -105,7 +106,7 @@ void exit_thread(void)
 	unsigned long *bp = t->io_bitmap_ptr;
 
 	if (bp) {
-		struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
+		struct tss_struct *tss = init_tss + get_cpu();
 
 		t->io_bitmap_ptr = NULL;
 		clear_thread_flag(TIF_IO_BITMAP);
@@ -136,7 +137,7 @@ void show_regs_common(void)
 	board = dmi_get_system_info(DMI_BOARD_NAME);
 
 	printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s %s %s%s%s\n",
-	       current->pid, current->comm, print_tainted(),
+	       task_pid_nr(current), current->comm, print_tainted(),
 	       init_utsname()->release,
 	       (int)strcspn(init_utsname()->version, " "),
 	       init_utsname()->version,
@@ -149,6 +150,9 @@ void flush_thread(void)
 {
 	struct task_struct *tsk = current;
 
+#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_PAX_MEMORY_UDEREF)
+	loadsegment(gs, 0);
+#endif
 	flush_ptrace_hw_breakpoint(tsk);
 	memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));
 	drop_init_fpu(tsk);
@@ -295,7 +299,7 @@ static void __exit_idle(void)
 void exit_idle(void)
 {
 	/* idle loop has pid 0 */
-	if (current->pid)
+	if (task_pid_nr(current))
 		return;
 	__exit_idle();
 }
@@ -398,7 +402,7 @@ bool xen_set_default_idle(void)
 	return ret;
 }
 #endif
-void stop_this_cpu(void *dummy)
+__noreturn void stop_this_cpu(void *dummy)
 {
 	local_irq_disable();
 	/*
@@ -544,16 +548,37 @@ static int __init idle_setup(char *str)
 }
 early_param("idle", idle_setup);
 
-unsigned long arch_align_stack(unsigned long sp)
+#ifdef CONFIG_PAX_RANDKSTACK
+void pax_randomize_kstack(struct pt_regs *regs)
 {
-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() % 8192;
-	return sp & ~0xf;
-}
+	struct thread_struct *thread = &current->thread;
+	unsigned long time;
 
-unsigned long arch_randomize_brk(struct mm_struct *mm)
-{
-	unsigned long range_end = mm->brk + 0x02000000;
-	return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
-}
+	if (!randomize_va_space)
+		return;
+
+	if (v8086_mode(regs))
+		return;
 
+	rdtscl(time);
+
+	/* P4 seems to return a 0 LSB, ignore it */
+#ifdef CONFIG_MPENTIUM4
+	time &= 0x3EUL;
+	time <<= 2;
+#elif defined(CONFIG_X86_64)
+	time &= 0xFUL;
+	time <<= 4;
+#else
+	time &= 0x1FUL;
+	time <<= 3;
+#endif
+
+	thread->sp0 ^= time;
+	load_sp0(init_tss + smp_processor_id(), thread);
+
+#ifdef CONFIG_X86_64
+	this_cpu_write(kernel_stack, thread->sp0);
+#endif
+}
+#endif
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index b5a8905..d9cacac 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -65,6 +65,7 @@ asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread");
 unsigned long thread_saved_pc(struct task_struct *tsk)
 {
 	return ((unsigned long *)tsk->thread.sp)[3];
+//XXX	return tsk->thread.eip;
 }
 
 void __show_regs(struct pt_regs *regs, int all)
@@ -74,21 +75,20 @@ void __show_regs(struct pt_regs *regs, int all)
 	unsigned long sp;
 	unsigned short ss, gs;
 
-	if (user_mode_vm(regs)) {
+	if (user_mode(regs)) {
 		sp = regs->sp;
 		ss = regs->ss & 0xffff;
-		gs = get_user_gs(regs);
 	} else {
 		sp = kernel_stack_pointer(regs);
 		savesegment(ss, ss);
-		savesegment(gs, gs);
 	}
+	gs = get_user_gs(regs);
 
 	show_regs_common();
 
 	printk(KERN_DEFAULT "EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
 			(u16)regs->cs, regs->ip, regs->flags,
-			smp_processor_id());
+			raw_smp_processor_id());
 	print_symbol("EIP is at %s\n", regs->ip);
 
 	printk(KERN_DEFAULT "EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
@@ -130,20 +130,21 @@ void release_thread(struct task_struct *dead_task)
 int copy_thread(unsigned long clone_flags, unsigned long sp,
 	unsigned long arg, struct task_struct *p)
 {
-	struct pt_regs *childregs = task_pt_regs(p);
+	struct pt_regs *childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8;
 	struct task_struct *tsk;
 	int err;
 
 	p->thread.sp = (unsigned long) childregs;
 	p->thread.sp0 = (unsigned long) (childregs+1);
+	p->tinfo.lowest_stack = (unsigned long)task_stack_page(p);
 
 	if (unlikely(p->flags & PF_KTHREAD)) {
 		/* kernel thread */
 		memset(childregs, 0, sizeof(struct pt_regs));
 		p->thread.ip = (unsigned long) ret_from_kernel_thread;
-		task_user_gs(p) = __KERNEL_STACK_CANARY;
-		childregs->ds = __USER_DS;
-		childregs->es = __USER_DS;
+		savesegment(gs, childregs->gs);
+		childregs->ds = __KERNEL_DS;
+		childregs->es = __KERNEL_DS;
 		childregs->fs = __KERNEL_PERCPU;
 		childregs->bx = sp;	/* function */
 		childregs->bp = arg;
@@ -250,7 +251,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	struct thread_struct *prev = &prev_p->thread,
 				 *next = &next_p->thread;
 	int cpu = smp_processor_id();
-	struct tss_struct *tss = &per_cpu(init_tss, cpu);
+	struct tss_struct *tss = init_tss + cpu;
 	fpu_switch_t fpu;
 
 	/* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
@@ -274,6 +275,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	 */
 	lazy_save_gs(prev->gs);
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	__set_fs(task_thread_info(next_p)->addr_limit);
+#endif
+
 	/*
 	 * Load the per-thread Thread-Local Storage descriptor.
 	 */
@@ -304,6 +309,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	 */
 	arch_end_context_switch(next_p);
 
+	this_cpu_write(current_task, next_p);
+	this_cpu_write(current_tinfo, &next_p->tinfo);
+
 	/*
 	 * Restore %gs if needed (which is common)
 	 */
@@ -312,8 +320,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 
 	switch_fpu_finish(next_p, fpu);
 
-	this_cpu_write(current_task, next_p);
-
 	return prev_p;
 }
 
@@ -343,4 +349,3 @@ unsigned long get_wchan(struct task_struct *p)
 	} while (count++ < 16);
 	return 0;
 }
-
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 0f49677..fcbf88c 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -152,10 +152,11 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
 	struct pt_regs *childregs;
 	struct task_struct *me = current;
 
-	p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE;
+	p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE - 16;
 	childregs = task_pt_regs(p);
 	p->thread.sp = (unsigned long) childregs;
 	p->thread.usersp = me->thread.usersp;
+	p->tinfo.lowest_stack = (unsigned long)task_stack_page(p);
 	set_tsk_thread_flag(p, TIF_FORK);
 	p->fpu_counter = 0;
 	p->thread.io_bitmap_ptr = NULL;
@@ -274,7 +275,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	struct thread_struct *prev = &prev_p->thread;
 	struct thread_struct *next = &next_p->thread;
 	int cpu = smp_processor_id();
-	struct tss_struct *tss = &per_cpu(init_tss, cpu);
+	struct tss_struct *tss = init_tss + cpu;
 	unsigned fsindex, gsindex;
 	fpu_switch_t fpu;
 
@@ -356,10 +357,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	prev->usersp = this_cpu_read(old_rsp);
 	this_cpu_write(old_rsp, next->usersp);
 	this_cpu_write(current_task, next_p);
+	this_cpu_write(current_tinfo, &next_p->tinfo);
 
-	this_cpu_write(kernel_stack,
-		  (unsigned long)task_stack_page(next_p) +
-		  THREAD_SIZE - KERNEL_STACK_OFFSET);
+	this_cpu_write(kernel_stack, next->sp0);
 
 	/*
 	 * Now maybe reload the debug registers and handle I/O bitmaps
@@ -428,12 +428,11 @@ unsigned long get_wchan(struct task_struct *p)
 	if (!p || p == current || p->state == TASK_RUNNING)
 		return 0;
 	stack = (unsigned long)task_stack_page(p);
-	if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE)
+	if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-16-sizeof(u64))
 		return 0;
 	fp = *(u64 *)(p->thread.sp);
 	do {
-		if (fp < (unsigned long)stack ||
-		    fp >= (unsigned long)stack+THREAD_SIZE)
+		if (fp < stack || fp > stack+THREAD_SIZE-16-sizeof(u64))
 			return 0;
 		ip = *(u64 *)(fp+8);
 		if (!in_sched_functions(ip))
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 29a8120..a50b5ee 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -184,14 +184,13 @@ unsigned long kernel_stack_pointer(struct pt_regs *regs)
 {
 	unsigned long context = (unsigned long)regs & ~(THREAD_SIZE - 1);
 	unsigned long sp = (unsigned long)&regs->sp;
-	struct thread_info *tinfo;
 
-	if (context == (sp & ~(THREAD_SIZE - 1)))
+	if (context == ((sp + 8) & ~(THREAD_SIZE - 1)))
 		return sp;
 
-	tinfo = (struct thread_info *)context;
-	if (tinfo->previous_esp)
-		return tinfo->previous_esp;
+	sp = *(unsigned long *)context;
+	if (sp)
+		return sp;
 
 	return (unsigned long)regs;
 }
@@ -588,7 +587,7 @@ static void ptrace_triggered(struct perf_event *bp,
 static unsigned long ptrace_get_dr7(struct perf_event *bp[])
 {
 	int i;
-	int dr7 = 0;
+	unsigned long dr7 = 0;
 	struct arch_hw_breakpoint *info;
 
 	for (i = 0; i < HBP_NUM; i++) {
@@ -856,7 +855,7 @@ long arch_ptrace(struct task_struct *child, long request,
 		 unsigned long addr, unsigned long data)
 {
 	int ret;
-	unsigned long __user *datap = (unsigned long __user *)data;
+	unsigned long __user *datap = (__force unsigned long __user *)data;
 
 	switch (request) {
 	/* read the word at location addr in the USER area. */
@@ -941,14 +940,14 @@ long arch_ptrace(struct task_struct *child, long request,
 		if ((int) addr < 0)
 			return -EIO;
 		ret = do_get_thread_area(child, addr,
-					(struct user_desc __user *)data);
+					(__force struct user_desc __user *) data);
 		break;
 
 	case PTRACE_SET_THREAD_AREA:
 		if ((int) addr < 0)
 			return -EIO;
 		ret = do_set_thread_area(child, addr,
-					(struct user_desc __user *)data, 0);
+					(__force struct user_desc __user *) data, 0);
 		break;
 #endif
 
@@ -1326,7 +1325,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 
 #ifdef CONFIG_X86_64
 
-static struct user_regset x86_64_regsets[] __read_mostly = {
+static user_regset_no_const x86_64_regsets[] __read_only = {
 	[REGSET_GENERAL] = {
 		.core_note_type = NT_PRSTATUS,
 		.n = sizeof(struct user_regs_struct) / sizeof(long),
@@ -1367,7 +1366,7 @@ static const struct user_regset_view user_x86_64_view = {
 #endif	/* CONFIG_X86_64 */
 
 #if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
-static struct user_regset x86_32_regsets[] __read_mostly = {
+static user_regset_no_const x86_32_regsets[] __read_only = {
 	[REGSET_GENERAL] = {
 		.core_note_type = NT_PRSTATUS,
 		.n = sizeof(struct user_regs_struct32) / sizeof(u32),
@@ -1420,7 +1419,7 @@ static const struct user_regset_view user_x86_32_view = {
  */
 u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS];
 
-void update_regset_xstate_info(unsigned int size, u64 xstate_mask)
+void __init update_regset_xstate_info(unsigned int size, u64 xstate_mask)
 {
 #ifdef CONFIG_X86_64
 	x86_64_regsets[REGSET_XSTATE].n = size / sizeof(u64);
@@ -1455,7 +1454,7 @@ static void fill_sigtrap_info(struct task_struct *tsk,
 	memset(info, 0, sizeof(*info));
 	info->si_signo = SIGTRAP;
 	info->si_code = si_code;
-	info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL;
+	info->si_addr = user_mode(regs) ? (__force void __user *)regs->ip : NULL;
 }
 
 void user_single_step_siginfo(struct task_struct *tsk,
@@ -1484,6 +1483,10 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
 # define IS_IA32	0
 #endif
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern void gr_delayed_cred_worker(void);
+#endif
+
 /*
  * We must return the syscall number to actually look up in the table.
  * This can be -1L to skip running any syscall at all.
@@ -1494,6 +1497,11 @@ long syscall_trace_enter(struct pt_regs *regs)
 
 	user_exit();
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	/*
 	 * If we stepped into a sysenter/syscall insn, it trapped in
 	 * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP.
@@ -1549,6 +1557,11 @@ void syscall_trace_leave(struct pt_regs *regs)
 	 */
 	user_exit();
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	audit_syscall_exit(regs);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 2cb9470..ff1fd80 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -43,11 +43,11 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src)
 	return pv_tsc_khz;
 }
 
-static atomic64_t last_value = ATOMIC64_INIT(0);
+static atomic64_unchecked_t last_value = ATOMIC64_INIT(0);
 
 void pvclock_resume(void)
 {
-	atomic64_set(&last_value, 0);
+	atomic64_set_unchecked(&last_value, 0);
 }
 
 u8 pvclock_read_flags(struct pvclock_vcpu_time_info *src)
@@ -92,11 +92,11 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
 	 * updating at the same time, and one of them could be slightly behind,
 	 * making the assumption that last_value always go forward fail to hold.
 	 */
-	last = atomic64_read(&last_value);
+	last = atomic64_read_unchecked(&last_value);
 	do {
 		if (ret < last)
 			return last;
-		last = atomic64_cmpxchg(&last_value, last, ret);
+		last = atomic64_cmpxchg_unchecked(&last_value, last, ret);
 	} while (unlikely(last != ret));
 
 	return ret;
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 76fa1e9..abf09ea 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -36,7 +36,7 @@ void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
 
 static const struct desc_ptr no_idt = {};
-static int reboot_mode;
+static unsigned short reboot_mode;
 enum reboot_type reboot_type = BOOT_ACPI;
 int reboot_force;
 
@@ -157,6 +157,11 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
 
 void __noreturn machine_real_restart(unsigned int type)
 {
+
+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
+	struct desc_struct *gdt;
+#endif
+
 	local_irq_disable();
 
 	/*
@@ -184,7 +189,29 @@ void __noreturn machine_real_restart(unsigned int type)
 
 	/* Jump to the identity-mapped low memory code */
 #ifdef CONFIG_X86_32
-	asm volatile("jmpl *%0" : :
+
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	gdt = get_cpu_gdt_table(smp_processor_id());
+	pax_open_kernel();
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	gdt[GDT_ENTRY_KERNEL_DS].type = 3;
+	gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
+	loadsegment(ds, __KERNEL_DS);
+	loadsegment(es, __KERNEL_DS);
+	loadsegment(ss, __KERNEL_DS);
+#endif
+#ifdef CONFIG_PAX_KERNEXEC
+	gdt[GDT_ENTRY_KERNEL_CS].base0 = 0;
+	gdt[GDT_ENTRY_KERNEL_CS].base1 = 0;
+	gdt[GDT_ENTRY_KERNEL_CS].base2 = 0;
+	gdt[GDT_ENTRY_KERNEL_CS].limit0 = 0xffff;
+	gdt[GDT_ENTRY_KERNEL_CS].limit = 0xf;
+	gdt[GDT_ENTRY_KERNEL_CS].g = 1;
+#endif
+	pax_close_kernel();
+#endif
+
+	asm volatile("ljmpl *%0" : :
 		     "rm" (real_mode_header->machine_real_restart_asm),
 		     "a" (type));
 #else
@@ -531,7 +558,7 @@ void __attribute__((weak)) mach_reboot_fixups(void)
  * try to force a triple fault and then cycle between hitting the keyboard
  * controller and doing that
  */
-static void native_machine_emergency_restart(void)
+static void __noreturn native_machine_emergency_restart(void)
 {
 	int i;
 	int attempt = 0;
@@ -654,13 +681,13 @@ void native_machine_shutdown(void)
 #endif
 }
 
-static void __machine_emergency_restart(int emergency)
+static void __noreturn __machine_emergency_restart(int emergency)
 {
 	reboot_emergency = emergency;
 	machine_ops.emergency_restart();
 }
 
-static void native_machine_restart(char *__unused)
+static void __noreturn native_machine_restart(char *__unused)
 {
 	pr_notice("machine restart\n");
 
@@ -669,7 +696,7 @@ static void native_machine_restart(char *__unused)
 	__machine_emergency_restart(0);
 }
 
-static void native_machine_halt(void)
+static void __noreturn native_machine_halt(void)
 {
 	/* Stop other cpus and apics */
 	machine_shutdown();
@@ -679,7 +706,7 @@ static void native_machine_halt(void)
 	stop_this_cpu(NULL);
 }
 
-static void native_machine_power_off(void)
+static void __noreturn native_machine_power_off(void)
 {
 	if (pm_power_off) {
 		if (!reboot_force)
@@ -688,9 +715,10 @@ static void native_machine_power_off(void)
 	}
 	/* A fallback in case there is no PM info available */
 	tboot_shutdown(TB_SHUTDOWN_HALT);
+	unreachable();
 }
 
-struct machine_ops machine_ops = {
+struct machine_ops machine_ops __read_only = {
 	.power_off = native_machine_power_off,
 	.shutdown = native_machine_shutdown,
 	.emergency_restart = native_machine_emergency_restart,
diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
index 7a6f3b3..bed145d7 100644
--- a/arch/x86/kernel/relocate_kernel_64.S
+++ b/arch/x86/kernel/relocate_kernel_64.S
@@ -11,6 +11,7 @@
 #include <asm/kexec.h>
 #include <asm/processor-flags.h>
 #include <asm/pgtable_types.h>
+#include <asm/alternative-asm.h>
 
 /*
  * Must be relocatable PIC code callable as a C function
@@ -160,13 +161,14 @@ identity_mapped:
 	xorq    %rbp, %rbp
 	xorq	%r8,  %r8
 	xorq	%r9,  %r9
-	xorq	%r10, %r9
+	xorq	%r10, %r10
 	xorq	%r11, %r11
 	xorq	%r12, %r12
 	xorq	%r13, %r13
 	xorq	%r14, %r14
 	xorq	%r15, %r15
 
+	pax_force_retaddr 0, 1
 	ret
 
 1:
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index fae9134..b7d4a57 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -111,6 +111,7 @@
 #include <asm/mce.h>
 #include <asm/alternative.h>
 #include <asm/prom.h>
+#include <asm/boot.h>
 
 /*
  * max_low_pfn_mapped: highest direct mapped pfn under 4GB
@@ -447,7 +448,7 @@ static void __init parse_setup_data(void)
 
 		switch (data->type) {
 		case SETUP_E820_EXT:
-			parse_e820_ext(data);
+			parse_e820_ext((struct setup_data __force_kernel *)data);
 			break;
 		case SETUP_DTB:
 			add_dtb(pa_data);
@@ -774,7 +775,7 @@ static void __init trim_bios_range(void)
 	 * area (640->1Mb) as ram even though it is not.
 	 * take them out.
 	 */
-	e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
+	e820_remove_range(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RAM, 1);
 
 	sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
 }
@@ -844,8 +845,12 @@ static void __init trim_low_memory_range(void)
 
 void __init setup_arch(char **cmdline_p)
 {
+#ifdef CONFIG_X86_32
+	memblock_reserve(LOAD_PHYSICAL_ADDR, __pa_symbol(__bss_stop) - ____LOAD_PHYSICAL_ADDR);
+#else
 	memblock_reserve(__pa_symbol(_text),
 			 (unsigned long)__bss_stop - (unsigned long)_text);
+#endif
 
 	early_reserve_initrd();
 
@@ -937,14 +942,14 @@ void __init setup_arch(char **cmdline_p)
 
 	if (!boot_params.hdr.root_flags)
 		root_mountflags &= ~MS_RDONLY;
-	init_mm.start_code = (unsigned long) _text;
-	init_mm.end_code = (unsigned long) _etext;
+	init_mm.start_code = ktla_ktva((unsigned long) _text);
+	init_mm.end_code = ktla_ktva((unsigned long) _etext);
 	init_mm.end_data = (unsigned long) _edata;
 	init_mm.brk = _brk_end;
 
-	code_resource.start = __pa_symbol(_text);
-	code_resource.end = __pa_symbol(_etext)-1;
-	data_resource.start = __pa_symbol(_etext);
+	code_resource.start = __pa_symbol(ktla_ktva(_text));
+	code_resource.end = __pa_symbol(ktla_ktva(_etext))-1;
+	data_resource.start = __pa_symbol(_sdata);
 	data_resource.end = __pa_symbol(_edata)-1;
 	bss_resource.start = __pa_symbol(__bss_start);
 	bss_resource.end = __pa_symbol(__bss_stop)-1;
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 5cdff03..80fa283 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -21,19 +21,17 @@
 #include <asm/cpu.h>
 #include <asm/stackprotector.h>
 
-DEFINE_PER_CPU_READ_MOSTLY(int, cpu_number);
+#ifdef CONFIG_SMP
+DEFINE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
 EXPORT_PER_CPU_SYMBOL(cpu_number);
+#endif
 
-#ifdef CONFIG_X86_64
 #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load)
-#else
-#define BOOT_PERCPU_OFFSET 0
-#endif
 
 DEFINE_PER_CPU(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET;
 EXPORT_PER_CPU_SYMBOL(this_cpu_off);
 
-unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = {
+unsigned long __per_cpu_offset[NR_CPUS] __read_only = {
 	[0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET,
 };
 EXPORT_SYMBOL(__per_cpu_offset);
@@ -66,7 +64,7 @@ static bool __init pcpu_need_numa(void)
 {
 #ifdef CONFIG_NEED_MULTIPLE_NODES
 	pg_data_t *last = NULL;
-	unsigned int cpu;
+	int cpu;
 
 	for_each_possible_cpu(cpu) {
 		int node = early_cpu_to_node(cpu);
@@ -155,10 +153,10 @@ static inline void setup_percpu_segment(int cpu)
 {
 #ifdef CONFIG_X86_32
 	struct desc_struct gdt;
+	unsigned long base = per_cpu_offset(cpu);
 
-	pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF,
-			0x2 | DESCTYPE_S, 0x8);
-	gdt.s = 1;
+	pack_descriptor(&gdt, base, (VMALLOC_END - base - 1) >> PAGE_SHIFT,
+			0x83 | DESCTYPE_S, 0xC);
 	write_gdt_entry(get_cpu_gdt_table(cpu),
 			GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
 #endif
@@ -219,6 +217,11 @@ void __init setup_per_cpu_areas(void)
 	/* alrighty, percpu areas up and running */
 	delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
 	for_each_possible_cpu(cpu) {
+#ifdef CONFIG_CC_STACKPROTECTOR
+#ifdef CONFIG_X86_32
+		unsigned long canary = per_cpu(stack_canary.canary, cpu);
+#endif
+#endif
 		per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu];
 		per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
 		per_cpu(cpu_number, cpu) = cpu;
@@ -259,6 +262,12 @@ void __init setup_per_cpu_areas(void)
 		 */
 		set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
 #endif
+#ifdef CONFIG_CC_STACKPROTECTOR
+#ifdef CONFIG_X86_32
+		if (!cpu)
+			per_cpu(stack_canary.canary, cpu) = canary;
+#endif
+#endif
 		/*
 		 * Up to this point, the boot CPU has been using .init.data
 		 * area.  Reload any changed state for the boot CPU.
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 6956299..f20beae 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -196,7 +196,7 @@ static unsigned long align_sigframe(unsigned long sp)
 	 * Align the stack pointer according to the i386 ABI,
 	 * i.e. so that on function entry ((sp + 4) & 15) == 0.
 	 */
-	sp = ((sp + 4) & -16ul) - 4;
+	sp = ((sp - 12) & -16ul) - 4;
 #else /* !CONFIG_X86_32 */
 	sp = round_down(sp, 16) - 8;
 #endif
@@ -304,9 +304,9 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
 	}
 
 	if (current->mm->context.vdso)
-		restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
+		restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
 	else
-		restorer = &frame->retcode;
+		restorer = (void __user *)&frame->retcode;
 	if (ksig->ka.sa.sa_flags & SA_RESTORER)
 		restorer = ksig->ka.sa.sa_restorer;
 
@@ -320,7 +320,7 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
 	 * reasons and because gdb uses it as a signature to notice
 	 * signal handler stack frames.
 	 */
-	err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode);
+	err |= __put_user(*((u64 *)&retcode), (u64 __user *)frame->retcode);
 
 	if (err)
 		return -EFAULT;
@@ -367,7 +367,10 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
 		err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
 
 		/* Set up to return from userspace.  */
-		restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
+		if (current->mm->context.vdso)
+			restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
+		else
+		restorer = (void __user *)&frame->retcode;
 		if (ksig->ka.sa.sa_flags & SA_RESTORER)
 			restorer = ksig->ka.sa.sa_restorer;
 		put_user_ex(restorer, &frame->pretcode);
@@ -379,7 +382,7 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
 		 * reasons and because gdb uses it as a signature to notice
 		 * signal handler stack frames.
 		 */
-		put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode);
+		put_user_ex(*((u64 *)&rt_retcode), (u64 __user *)frame->retcode);
 	} put_user_catch(err);
 	
 	err |= copy_siginfo_to_user(&frame->info, &ksig->info);
@@ -615,7 +618,12 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
 {
 	int usig = signr_convert(ksig->sig);
 	sigset_t *set = sigmask_to_save();
-	compat_sigset_t *cset = (compat_sigset_t *) set;
+	sigset_t sigcopy;
+	compat_sigset_t *cset;
+
+	sigcopy = *set;
+
+	cset = (compat_sigset_t *) &sigcopy;
 
 	/* Set up the stack frame */
 	if (is_ia32_frame()) {
@@ -626,7 +634,7 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
 	} else if (is_x32_frame()) {
 		return x32_setup_rt_frame(ksig, cset, regs);
 	} else {
-		return __setup_rt_frame(ksig->sig, ksig, set, regs);
+		return __setup_rt_frame(ksig->sig, ksig, &sigcopy, regs);
 	}
 }
 
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index 48d2b7d..90d328a 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -285,7 +285,7 @@ static int __init nonmi_ipi_setup(char *str)
 
 __setup("nonmi_ipi", nonmi_ipi_setup);
 
-struct smp_ops smp_ops = {
+struct smp_ops smp_ops __read_only = {
 	.smp_prepare_boot_cpu	= native_smp_prepare_boot_cpu,
 	.smp_prepare_cpus	= native_smp_prepare_cpus,
 	.smp_cpus_done		= native_smp_cpus_done,
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 9f190a2..90a0688 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -748,6 +748,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 	idle->thread.sp = (unsigned long) (((struct pt_regs *)
 			  (THREAD_SIZE +  task_stack_page(idle))) - 1);
 	per_cpu(current_task, cpu) = idle;
+	per_cpu(current_tinfo, cpu) = &idle->tinfo;
 
 #ifdef CONFIG_X86_32
 	/* Stack for startup_32 can be just as for start_secondary onwards */
@@ -755,11 +756,13 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 #else
 	clear_tsk_thread_flag(idle, TIF_FORK);
 	initial_gs = per_cpu_offset(cpu);
-	per_cpu(kernel_stack, cpu) =
-		(unsigned long)task_stack_page(idle) -
-		KERNEL_STACK_OFFSET + THREAD_SIZE;
+	per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
 #endif
+
+	pax_open_kernel();
 	early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
+	pax_close_kernel();
+
 	initial_code = (unsigned long)start_secondary;
 	stack_start  = idle->thread.sp;
 
@@ -908,6 +911,15 @@ int __cpuinit native_cpu_up(unsigned int cpu, struct task_struct *tidle)
 	/* the FPU context is blank, nobody can own it */
 	__cpu_disable_lazy_restore(cpu);
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	clone_pgd_range(get_cpu_pgd(cpu) + KERNEL_PGD_BOUNDARY,
+			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
+			KERNEL_PGD_PTRS);
+#endif
+
+	/* the FPU context is blank, nobody can own it */
+	__cpu_disable_lazy_restore(cpu);
+
 	err = do_boot_cpu(apicid, cpu, tidle);
 	if (err) {
 		pr_debug("do_boot_cpu failed %d\n", err);
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 9b4d51d..5d28b58 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
 		struct desc_struct *desc;
 		unsigned long base;
 
-		seg &= ~7UL;
+		seg >>= 3;
 
 		mutex_lock(&child->mm->context.lock);
-		if (unlikely((seg >> 3) >= child->mm->context.size))
+		if (unlikely(seg >= child->mm->context.size))
 			addr = -1L; /* bogus selector, access would fault */
 		else {
 			desc = child->mm->context.ldt + seg;
@@ -42,7 +42,8 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
 			addr += base;
 		}
 		mutex_unlock(&child->mm->context.lock);
-	}
+	} else if (seg == __KERNEL_CS || seg == __KERNEXEC_KERNEL_CS)
+		addr = ktla_ktva(addr);
 
 	return addr;
 }
@@ -53,6 +54,9 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
 	unsigned char opcode[15];
 	unsigned long addr = convert_ip_to_linear(child, regs);
 
+	if (addr == -EINVAL)
+		return 0;
+
 	copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
 	for (i = 0; i < copied; i++) {
 		switch (opcode[i]) {
diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
new file mode 100644
index 0000000..207bec6
--- /dev/null
+++ b/arch/x86/kernel/sys_i386_32.c
@@ -0,0 +1,250 @@
+/*
+ * This file contains various random system calls that
+ * have a non-standard calling sequence on the Linux/i386
+ * platform.
+ */
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/smp.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/stat.h>
+#include <linux/syscalls.h>
+#include <linux/mman.h>
+#include <linux/file.h>
+#include <linux/utsname.h>
+#include <linux/ipc.h>
+
+#include <linux/uaccess.h>
+#include <linux/unistd.h>
+
+#include <asm/syscalls.h>
+
+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
+{
+	unsigned long pax_task_size = TASK_SIZE;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	if (flags & MAP_FIXED)
+		if (len > pax_task_size || addr > pax_task_size - len)
+			return -EINVAL;
+
+	return 0;
+}
+
+unsigned long
+arch_get_unmapped_area(struct file *filp, unsigned long addr,
+		unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *vma;
+	unsigned long start_addr, pax_task_size = TASK_SIZE;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	pax_task_size -= PAGE_SIZE;
+
+	if (len > pax_task_size)
+		return -ENOMEM;
+
+	if (flags & MAP_FIXED)
+		return addr;
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
+	if (addr) {
+		addr = PAGE_ALIGN(addr);
+		if (pax_task_size - len >= addr) {
+			vma = find_vma(mm, addr);
+			if (check_heap_stack_gap(vma, addr, len, offset))
+				return addr;
+		}
+	}
+	if (len > mm->cached_hole_size) {
+		start_addr = addr = mm->free_area_cache;
+	} else {
+		start_addr = addr = mm->mmap_base;
+		mm->cached_hole_size = 0;
+	}
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE) && start_addr >= mm->mmap_base) {
+		start_addr = 0x00110000UL;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			start_addr += mm->delta_mmap & 0x03FFF000UL;
+#endif
+
+		if (mm->start_brk <= start_addr && start_addr < mm->mmap_base)
+			start_addr = addr = mm->mmap_base;
+		else
+			addr = start_addr;
+	}
+#endif
+
+full_search:
+	for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
+		/* At this point:  (!vma || addr < vma->vm_end). */
+		if (pax_task_size - len < addr) {
+			/*
+			 * Start a new search - just in case we missed
+			 * some holes.
+			 */
+			if (start_addr != mm->mmap_base) {
+				start_addr = addr = mm->mmap_base;
+				mm->cached_hole_size = 0;
+				goto full_search;
+			}
+			return -ENOMEM;
+		}
+		if (check_heap_stack_gap(vma, addr, len, offset))
+			break;
+		if (addr + mm->cached_hole_size < vma->vm_start)
+			mm->cached_hole_size = vma->vm_start - addr;
+		addr = vma->vm_end;
+		if (mm->start_brk <= addr && addr < mm->mmap_base) {
+			start_addr = addr = mm->mmap_base;
+			mm->cached_hole_size = 0;
+			goto full_search;
+		}
+	}
+
+	/*
+	 * Remember the place where we stopped the search:
+	 */
+	mm->free_area_cache = addr + len;
+	return addr;
+}
+
+unsigned long
+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+			  const unsigned long len, const unsigned long pgoff,
+			  const unsigned long flags)
+{
+	struct vm_area_struct *vma;
+	struct mm_struct *mm = current->mm;
+	unsigned long base = mm->mmap_base, addr = addr0, pax_task_size = TASK_SIZE;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	pax_task_size -= PAGE_SIZE;
+
+	/* requested length too big for entire address space */
+	if (len > pax_task_size)
+		return -ENOMEM;
+
+	if (flags & MAP_FIXED)
+		return addr;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE))
+		goto bottomup;
+#endif
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
+	/* requesting a specific address */
+	if (addr) {
+		addr = PAGE_ALIGN(addr);
+		if (pax_task_size - len >= addr) {
+			vma = find_vma(mm, addr);
+			if (check_heap_stack_gap(vma, addr, len, offset))
+				return addr;
+		}
+	}
+
+	/* check if free_area_cache is useful for us */
+	if (len <= mm->cached_hole_size) {
+		mm->cached_hole_size = 0;
+		mm->free_area_cache = mm->mmap_base;
+	}
+
+	/* either no address requested or can't fit in requested address hole */
+	addr = mm->free_area_cache;
+
+	/* make sure it can fit in the remaining address space */
+	if (addr > len) {
+		vma = find_vma(mm, addr-len);
+		if (check_heap_stack_gap(vma, addr - len, len, offset))
+			/* remember the address as a hint for next time */
+			return (mm->free_area_cache = addr-len);
+	}
+
+	if (mm->mmap_base < len)
+		goto bottomup;
+
+	addr = mm->mmap_base-len;
+
+	do {
+		/*
+		 * Lookup failure means no vma is above this address,
+		 * else if new region fits below vma->vm_start,
+		 * return with success:
+		 */
+		vma = find_vma(mm, addr);
+		if (check_heap_stack_gap(vma, addr, len, offset))
+			/* remember the address as a hint for next time */
+			return (mm->free_area_cache = addr);
+
+		/* remember the largest hole we saw so far */
+		if (addr + mm->cached_hole_size < vma->vm_start)
+			mm->cached_hole_size = vma->vm_start - addr;
+
+		/* try just below the current vma->vm_start */
+		addr = skip_heap_stack_gap(vma, len, offset);
+	} while (!IS_ERR_VALUE(addr));
+
+bottomup:
+	/*
+	 * A failed mmap() very likely causes application failure,
+	 * so fall back to the bottom-up function here. This scenario
+	 * can happen with large stack limits and large mmap()
+	 * allocations.
+	 */
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE;
+	else
+#endif
+
+	mm->mmap_base = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP)
+		mm->mmap_base += mm->delta_mmap;
+#endif
+
+	mm->free_area_cache = mm->mmap_base;
+	mm->cached_hole_size = ~0UL;
+	addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
+	/*
+	 * Restore the topdown base:
+	 */
+	mm->mmap_base = base;
+	mm->free_area_cache = base;
+	mm->cached_hole_size = ~0UL;
+
+	return addr;
+}
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index dbded5a..ace2781 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -81,8 +81,8 @@ out:
 	return error;
 }
 
-static void find_start_end(unsigned long flags, unsigned long *begin,
-			   unsigned long *end)
+static void find_start_end(struct mm_struct *mm, unsigned long flags,
+			   unsigned long *begin, unsigned long *end)
 {
 	if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) {
 		unsigned long new_begin;
@@ -101,7 +101,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
 				*begin = new_begin;
 		}
 	} else {
-		*begin = TASK_UNMAPPED_BASE;
+		*begin = mm->mmap_base;
 		*end = TASK_SIZE;
 	}
 }
@@ -114,20 +114,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
 	unsigned long begin, end;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 
 	if (flags & MAP_FIXED)
 		return addr;
 
-	find_start_end(flags, &begin, &end);
+	find_start_end(mm, flags, &begin, &end);
 
 	if (len > end)
 		return -ENOMEM;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
-		if (end - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (end - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -137,6 +141,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.high_limit = end;
 	info.align_mask = filp ? get_align_mask() : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
@@ -149,6 +154,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 
 	/* requested length too big for entire address space */
 	if (len > TASK_SIZE)
@@ -161,12 +167,15 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT))
 		goto bottomup;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* requesting a specific address */
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -176,6 +185,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = filp ? get_align_mask() : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 	if (!(addr & ~PAGE_MASK))
 		return addr;
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
index f84fe00..f41d9f1 100644
--- a/arch/x86/kernel/tboot.c
+++ b/arch/x86/kernel/tboot.c
@@ -220,7 +220,7 @@ static int tboot_setup_sleep(void)
 
 void tboot_shutdown(u32 shutdown_type)
 {
-	void (*shutdown)(void);
+	void (* __noreturn shutdown)(void);
 
 	if (!tboot_enabled())
 		return;
@@ -242,7 +242,7 @@ void tboot_shutdown(u32 shutdown_type)
 
 	switch_to_tboot_pt();
 
-	shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry;
+	shutdown = (void *)tboot->shutdown_entry;
 	shutdown();
 
 	/* should not reach here */
@@ -300,7 +300,7 @@ static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control)
 	return 0;
 }
 
-static atomic_t ap_wfs_count;
+static atomic_unchecked_t ap_wfs_count;
 
 static int tboot_wait_for_aps(int num_aps)
 {
@@ -324,16 +324,16 @@ static int __cpuinit tboot_cpu_callback(struct notifier_block *nfb,
 {
 	switch (action) {
 	case CPU_DYING:
-		atomic_inc(&ap_wfs_count);
+		atomic_inc_unchecked(&ap_wfs_count);
 		if (num_online_cpus() == 1)
-			if (tboot_wait_for_aps(atomic_read(&ap_wfs_count)))
+			if (tboot_wait_for_aps(atomic_read_unchecked(&ap_wfs_count)))
 				return NOTIFY_BAD;
 		break;
 	}
 	return NOTIFY_OK;
 }
 
-static struct notifier_block tboot_cpu_notifier __cpuinitdata =
+static struct notifier_block tboot_cpu_notifier =
 {
 	.notifier_call = tboot_cpu_callback,
 };
@@ -345,7 +345,7 @@ static __init int tboot_late_init(void)
 
 	tboot_create_trampoline();
 
-	atomic_set(&ap_wfs_count, 0);
+	atomic_set_unchecked(&ap_wfs_count, 0);
 	register_hotcpu_notifier(&tboot_cpu_notifier);
 
 	acpi_os_set_prepare_sleep(&tboot_sleep);
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index 24d3c91..d06b473 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -30,9 +30,9 @@ unsigned long profile_pc(struct pt_regs *regs)
 {
 	unsigned long pc = instruction_pointer(regs);
 
-	if (!user_mode_vm(regs) && in_lock_functions(pc)) {
+	if (!user_mode(regs) && in_lock_functions(pc)) {
 #ifdef CONFIG_FRAME_POINTER
-		return *(unsigned long *)(regs->bp + sizeof(long));
+		return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long)));
 #else
 		unsigned long *sp =
 			(unsigned long *)kernel_stack_pointer(regs);
@@ -41,11 +41,17 @@ unsigned long profile_pc(struct pt_regs *regs)
 		 * or above a saved flags. Eflags has bits 22-31 zero,
 		 * kernel addresses don't.
 		 */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		return ktla_ktva(sp[0]);
+#else
 		if (sp[0] >> 22)
 			return sp[0];
 		if (sp[1] >> 22)
 			return sp[1];
 #endif
+
+#endif
 	}
 	return pc;
 }
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 9d9d2f9..cad418a 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -84,6 +84,11 @@ int do_set_thread_area(struct task_struct *p, int idx,
 	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
 		return -EINVAL;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE))
+		return -EINVAL;
+#endif
+
 	set_tls_desc(p, idx, &info, 1);
 
 	return 0;
@@ -204,7 +209,7 @@ int regset_tls_set(struct task_struct *target, const struct user_regset *regset,
 
 	if (kbuf)
 		info = kbuf;
-	else if (__copy_from_user(infobuf, ubuf, count))
+	else if (count > sizeof infobuf || __copy_from_user(infobuf, ubuf, count))
 		return -EFAULT;
 	else
 		info = infobuf;
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 68bda7a..3ec7bb7 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -68,12 +68,6 @@
 #include <asm/setup.h>
 
 asmlinkage int system_call(void);
-
-/*
- * The IDT has to be page-aligned to simplify the Pentium
- * F0 0F bug workaround.
- */
-gate_desc idt_table[NR_VECTORS] __page_aligned_data = { { { { 0, 0 } } }, };
 #endif
 
 DECLARE_BITMAP(used_vectors, NR_VECTORS);
@@ -106,11 +100,11 @@ static inline void preempt_conditional_cli(struct pt_regs *regs)
 }
 
 static int __kprobes
-do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
+do_trap_no_signal(struct task_struct *tsk, int trapnr, const char *str,
 		  struct pt_regs *regs,	long error_code)
 {
 #ifdef CONFIG_X86_32
-	if (regs->flags & X86_VM_MASK) {
+	if (v8086_mode(regs)) {
 		/*
 		 * Traps 0, 1, 3, 4, and 5 should be forwarded to vm86.
 		 * On nmi (interrupt 2), do_trap should not be called.
@@ -123,12 +117,24 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
 		return -1;
 	}
 #endif
-	if (!user_mode(regs)) {
+	if (!user_mode_novm(regs)) {
 		if (!fixup_exception(regs)) {
 			tsk->thread.error_code = error_code;
 			tsk->thread.trap_nr = trapnr;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+			if (trapnr == 12 && ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS))
+				str = "PAX: suspicious stack segment fault";
+#endif
+
 			die(str, regs, error_code);
 		}
+
+#ifdef CONFIG_PAX_REFCOUNT
+		if (trapnr == 4)
+			pax_report_refcount_overflow(regs);
+#endif
+
 		return 0;
 	}
 
@@ -136,7 +142,7 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
 }
 
 static void __kprobes
-do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
+do_trap(int trapnr, int signr, const char *str, struct pt_regs *regs,
 	long error_code, siginfo_t *info)
 {
 	struct task_struct *tsk = current;
@@ -160,7 +166,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
 	if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
 	    printk_ratelimit()) {
 		pr_info("%s[%d] trap %s ip:%lx sp:%lx error:%lx",
-			tsk->comm, tsk->pid, str,
+			tsk->comm, task_pid_nr(tsk), str,
 			regs->ip, regs->sp, error_code);
 		print_vma_addr(" in ", regs->ip);
 		pr_cont("\n");
@@ -266,7 +272,7 @@ do_general_protection(struct pt_regs *regs, long error_code)
 	conditional_sti(regs);
 
 #ifdef CONFIG_X86_32
-	if (regs->flags & X86_VM_MASK) {
+	if (v8086_mode(regs)) {
 		local_irq_enable();
 		handle_vm86_fault((struct kernel_vm86_regs *) regs, error_code);
 		goto exit;
@@ -274,18 +280,42 @@ do_general_protection(struct pt_regs *regs, long error_code)
 #endif
 
 	tsk = current;
-	if (!user_mode(regs)) {
+	if (!user_mode_novm(regs)) {
 		if (fixup_exception(regs))
 			goto exit;
 
 		tsk->thread.error_code = error_code;
 		tsk->thread.trap_nr = X86_TRAP_GP;
 		if (notify_die(DIE_GPF, "general protection fault", regs, error_code,
-			       X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP)
+			       X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP) {
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		if ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS)
+			die("PAX: suspicious general protection fault", regs, error_code);
+		else
+#endif
+
 			die("general protection fault", regs, error_code);
+		}
 		goto exit;
 	}
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
+	if (!(__supported_pte_mask & _PAGE_NX) && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) {
+		struct mm_struct *mm = tsk->mm;
+		unsigned long limit;
+
+		down_write(&mm->mmap_sem);
+		limit = mm->context.user_cs_limit;
+		if (limit < TASK_SIZE) {
+			track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC);
+			up_write(&mm->mmap_sem);
+			return;
+		}
+		up_write(&mm->mmap_sem);
+	}
+#endif
+
 	tsk->thread.error_code = error_code;
 	tsk->thread.trap_nr = X86_TRAP_GP;
 
@@ -440,7 +470,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
 	/* It's safe to allow irq's after DR6 has been saved */
 	preempt_conditional_sti(regs);
 
-	if (regs->flags & X86_VM_MASK) {
+	if (v8086_mode(regs)) {
 		handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code,
 					X86_TRAP_DB);
 		preempt_conditional_cli(regs);
@@ -455,7 +485,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
 	 * We already checked v86 mode above, so we can check for kernel mode
 	 * by just checking the CPL of CS.
 	 */
-	if ((dr6 & DR_STEP) && !user_mode(regs)) {
+	if ((dr6 & DR_STEP) && !user_mode_novm(regs)) {
 		tsk->thread.debugreg6 &= ~DR_STEP;
 		set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
 		regs->flags &= ~X86_EFLAGS_TF;
@@ -487,7 +517,7 @@ void math_error(struct pt_regs *regs, int error_code, int trapnr)
 		return;
 	conditional_sti(regs);
 
-	if (!user_mode_vm(regs))
+	if (!user_mode(regs))
 	{
 		if (!fixup_exception(regs)) {
 			task->thread.error_code = error_code;
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
index 0ba4cfb..4596bec 100644
--- a/arch/x86/kernel/uprobes.c
+++ b/arch/x86/kernel/uprobes.c
@@ -629,7 +629,7 @@ int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val,
 	int ret = NOTIFY_DONE;
 
 	/* We are only interested in userspace traps */
-	if (regs && !user_mode_vm(regs))
+	if (regs && !user_mode(regs))
 		return NOTIFY_DONE;
 
 	switch (val) {
diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S
index b9242ba..50c5edd 100644
--- a/arch/x86/kernel/verify_cpu.S
+++ b/arch/x86/kernel/verify_cpu.S
@@ -20,6 +20,7 @@
  *	arch/x86/boot/compressed/head_64.S: Boot cpu verification
  *	arch/x86/kernel/trampoline_64.S: secondary processor verification
  *	arch/x86/kernel/head_32.S: processor startup
+ *	arch/x86/kernel/acpi/realmode/wakeup.S: 32bit processor resume
  *
  *	verify_cpu, returns the status of longmode and SSE in register %eax.
  *		0: Success    1: Failure
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 3dbdd9c..888b14e 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -44,6 +44,7 @@
 #include <linux/ptrace.h>
 #include <linux/audit.h>
 #include <linux/stddef.h>
+#include <linux/grsecurity.h>
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
@@ -150,7 +151,7 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs)
 		do_exit(SIGSEGV);
 	}
 
-	tss = &per_cpu(init_tss, get_cpu());
+	tss = init_tss + get_cpu();
 	current->thread.sp0 = current->thread.saved_sp0;
 	current->thread.sysenter_cs = __KERNEL_CS;
 	load_sp0(tss, &current->thread);
@@ -214,6 +215,14 @@ SYSCALL_DEFINE1(vm86old, struct vm86_struct __user *, v86)
 
 	if (tsk->thread.saved_sp0)
 		goto out;
+
+#ifdef CONFIG_GRKERNSEC_VM86
+	if (!capable(CAP_SYS_RAWIO)) {
+		gr_handle_vm86();
+		goto out;
+	}
+#endif
+
 	tmp = copy_vm86_regs_from_user(&info.regs, &v86->regs,
 				       offsetof(struct kernel_vm86_struct, vm86plus) -
 				       sizeof(info.regs));
@@ -242,6 +251,14 @@ SYSCALL_DEFINE2(vm86, unsigned long, cmd, unsigned long, arg)
 	int tmp, ret;
 	struct vm86plus_struct __user *v86;
 
+#ifdef CONFIG_GRKERNSEC_VM86
+	if (!capable(CAP_SYS_RAWIO)) {
+		gr_handle_vm86();
+		ret = -EPERM;
+		goto out;
+	}
+#endif
+
 	tsk = current;
 	switch (cmd) {
 	case VM86_REQUEST_IRQ:
@@ -329,7 +346,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
 	tsk->thread.saved_fs = info->regs32->fs;
 	tsk->thread.saved_gs = get_user_gs(info->regs32);
 
-	tss = &per_cpu(init_tss, get_cpu());
+	tss = init_tss + get_cpu();
 	tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
 	if (cpu_has_sep)
 		tsk->thread.sysenter_cs = 0;
@@ -536,7 +553,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
 		goto cannot_handle;
 	if (i == 0x21 && is_revectored(AH(regs), &KVM86->int21_revectored))
 		goto cannot_handle;
-	intr_ptr = (unsigned long __user *) (i << 2);
+	intr_ptr = (__force unsigned long __user *) (i << 2);
 	if (get_user(segoffs, intr_ptr))
 		goto cannot_handle;
 	if ((segoffs >> 16) == BIOSSEG)
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 22a1530..8fbaaad 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -26,6 +26,13 @@
 #include <asm/page_types.h>
 #include <asm/cache.h>
 #include <asm/boot.h>
+#include <asm/segment.h>
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+#define __KERNEL_TEXT_OFFSET	(LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR)
+#else
+#define __KERNEL_TEXT_OFFSET	0
+#endif
 
 #undef i386     /* in case the preprocessor is a 32bit one */
 
@@ -69,30 +76,43 @@ jiffies_64 = jiffies;
 
 PHDRS {
 	text PT_LOAD FLAGS(5);          /* R_E */
+#ifdef CONFIG_X86_32
+	module PT_LOAD FLAGS(5);        /* R_E */
+#endif
+#ifdef CONFIG_XEN
+	rodata PT_LOAD FLAGS(5);        /* R_E */
+#else
+	rodata PT_LOAD FLAGS(4);        /* R__ */
+#endif
 	data PT_LOAD FLAGS(6);          /* RW_ */
-#ifdef CONFIG_X86_64
+	init.begin PT_LOAD FLAGS(6);    /* RW_ */
 #ifdef CONFIG_SMP
 	percpu PT_LOAD FLAGS(6);        /* RW_ */
 #endif
+	text.init PT_LOAD FLAGS(5);     /* R_E */
+	text.exit PT_LOAD FLAGS(5);     /* R_E */
 	init PT_LOAD FLAGS(7);          /* RWE */
-#endif
 	note PT_NOTE FLAGS(0);          /* ___ */
 }
 
 SECTIONS
 {
 #ifdef CONFIG_X86_32
-        . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
-        phys_startup_32 = startup_32 - LOAD_OFFSET;
+	. = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR;
 #else
-        . = __START_KERNEL;
-        phys_startup_64 = startup_64 - LOAD_OFFSET;
+	. = __START_KERNEL;
 #endif
 
 	/* Text and read-only data */
-	.text :  AT(ADDR(.text) - LOAD_OFFSET) {
-		_text = .;
+	.text (. - __KERNEL_TEXT_OFFSET): AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
 		/* bootstrapping code */
+#ifdef CONFIG_X86_32
+		phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
+#else
+		phys_startup_64 = startup_64 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
+#endif
+		__LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
+		_text = .;
 		HEAD_TEXT
 #ifdef CONFIG_X86_32
 		. = ALIGN(PAGE_SIZE);
@@ -108,13 +128,48 @@ SECTIONS
 		IRQENTRY_TEXT
 		*(.fixup)
 		*(.gnu.warning)
-		/* End of text section */
-		_etext = .;
 	} :text = 0x9090
 
-	NOTES :text :note
+	. += __KERNEL_TEXT_OFFSET;
 
-	EXCEPTION_TABLE(16) :text = 0x9090
+#ifdef CONFIG_X86_32
+	. = ALIGN(PAGE_SIZE);
+	.module.text : AT(ADDR(.module.text) - LOAD_OFFSET) {
+
+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES)
+		MODULES_EXEC_VADDR = .;
+		BYTE(0)
+		. += (CONFIG_PAX_KERNEXEC_MODULE_TEXT * 1024 * 1024);
+		. = ALIGN(HPAGE_SIZE) - 1;
+		MODULES_EXEC_END = .;
+#endif
+
+	} :module
+#endif
+
+	.text.end : AT(ADDR(.text.end) - LOAD_OFFSET) {
+		/* End of text section */
+		BYTE(0)
+		_etext = . - __KERNEL_TEXT_OFFSET;
+	}
+
+#ifdef CONFIG_X86_32
+	. = ALIGN(PAGE_SIZE);
+	.rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) {
+		*(.idt)
+		. = ALIGN(PAGE_SIZE);
+		*(.empty_zero_page)
+		*(.initial_pg_fixmap)
+		*(.initial_pg_pmd)
+		*(.initial_page_table)
+		*(.swapper_pg_dir)
+	} :rodata
+#endif
+
+	. = ALIGN(PAGE_SIZE);
+	NOTES :rodata :note
+
+	EXCEPTION_TABLE(16) :rodata
 
 #if defined(CONFIG_DEBUG_RODATA)
 	/* .text should occupy whole number of pages */
@@ -126,16 +181,20 @@ SECTIONS
 
 	/* Data */
 	.data : AT(ADDR(.data) - LOAD_OFFSET) {
+
+#ifdef CONFIG_PAX_KERNEXEC
+		. = ALIGN(HPAGE_SIZE);
+#else
+		. = ALIGN(PAGE_SIZE);
+#endif
+
 		/* Start of data section */
 		_sdata = .;
 
 		/* init_task */
 		INIT_TASK_DATA(THREAD_SIZE)
 
-#ifdef CONFIG_X86_32
-		/* 32 bit has nosave before _edata */
 		NOSAVE_DATA
-#endif
 
 		PAGE_ALIGNED_DATA(PAGE_SIZE)
 
@@ -176,12 +235,19 @@ SECTIONS
 #endif /* CONFIG_X86_64 */
 
 	/* Init code and data - will be freed after init */
-	. = ALIGN(PAGE_SIZE);
 	.init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) {
+		BYTE(0)
+
+#ifdef CONFIG_PAX_KERNEXEC
+		. = ALIGN(HPAGE_SIZE);
+#else
+		. = ALIGN(PAGE_SIZE);
+#endif
+
 		__init_begin = .; /* paired with __init_end */
-	}
+	} :init.begin
 
-#if defined(CONFIG_X86_64) && defined(CONFIG_SMP)
+#ifdef CONFIG_SMP
 	/*
 	 * percpu offsets are zero-based on SMP.  PERCPU_VADDR() changes the
 	 * output PHDR, so the next output section - .init.text - should
@@ -190,12 +256,27 @@ SECTIONS
 	PERCPU_VADDR(INTERNODE_CACHE_BYTES, 0, :percpu)
 #endif
 
-	INIT_TEXT_SECTION(PAGE_SIZE)
-#ifdef CONFIG_X86_64
-	:init
-#endif
+	. = ALIGN(PAGE_SIZE);
+	init_begin = .;
+	.init.text (. - __KERNEL_TEXT_OFFSET): AT(init_begin - LOAD_OFFSET) {
+		VMLINUX_SYMBOL(_sinittext) = .;
+		INIT_TEXT
+		VMLINUX_SYMBOL(_einittext) = .;
+		. = ALIGN(PAGE_SIZE);
+	} :text.init
 
-	INIT_DATA_SECTION(16)
+	/*
+	 * .exit.text is discard at runtime, not link time, to deal with
+	 *  references from .altinstructions and .eh_frame
+	 */
+	.exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
+		EXIT_TEXT
+		. = ALIGN(16);
+	} :text.exit
+	. = init_begin + SIZEOF(.init.text) + SIZEOF(.exit.text);
+
+	. = ALIGN(PAGE_SIZE);
+	INIT_DATA_SECTION(16) :init
 
 	.x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
 		__x86_cpu_dev_start = .;
@@ -257,19 +338,12 @@ SECTIONS
 	}
 
 	. = ALIGN(8);
-	/*
-	 * .exit.text is discard at runtime, not link time, to deal with
-	 *  references from .altinstructions and .eh_frame
-	 */
-	.exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
-		EXIT_TEXT
-	}
 
 	.exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
 		EXIT_DATA
 	}
 
-#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP)
+#ifndef CONFIG_SMP
 	PERCPU_SECTION(INTERNODE_CACHE_BYTES)
 #endif
 
@@ -288,16 +362,10 @@ SECTIONS
 	.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
 		__smp_locks = .;
 		*(.smp_locks)
-		. = ALIGN(PAGE_SIZE);
 		__smp_locks_end = .;
+		. = ALIGN(PAGE_SIZE);
 	}
 
-#ifdef CONFIG_X86_64
-	.data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
-		NOSAVE_DATA
-	}
-#endif
-
 	/* BSS */
 	. = ALIGN(PAGE_SIZE);
 	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
@@ -313,6 +381,7 @@ SECTIONS
 		__brk_base = .;
 		. += 64 * 1024;		/* 64k alignment slop space */
 		*(.brk_reservation)	/* areas brk users have reserved */
+		. = ALIGN(HPAGE_SIZE);
 		__brk_limit = .;
 	}
 
@@ -339,13 +408,12 @@ SECTIONS
  * for the boot processor.
  */
 #define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load
-INIT_PER_CPU(gdt_page);
 INIT_PER_CPU(irq_stack_union);
 
 /*
  * Build-time check on the image size:
  */
-. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE),
+. = ASSERT((_end - _text - __KERNEL_TEXT_OFFSET <= KERNEL_IMAGE_SIZE),
 	   "kernel image bigger than KERNEL_IMAGE_SIZE");
 
 #ifdef CONFIG_SMP
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 9a907a6..f83f921 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -56,15 +56,13 @@
 DEFINE_VVAR(int, vgetcpu_mode);
 DEFINE_VVAR(struct vsyscall_gtod_data, vsyscall_gtod_data);
 
-static enum { EMULATE, NATIVE, NONE } vsyscall_mode = EMULATE;
+static enum { EMULATE, NONE } vsyscall_mode = EMULATE;
 
 static int __init vsyscall_setup(char *str)
 {
 	if (str) {
 		if (!strcmp("emulate", str))
 			vsyscall_mode = EMULATE;
-		else if (!strcmp("native", str))
-			vsyscall_mode = NATIVE;
 		else if (!strcmp("none", str))
 			vsyscall_mode = NONE;
 		else
@@ -323,8 +321,7 @@ do_ret:
 	return true;
 
 sigsegv:
-	force_sig(SIGSEGV, current);
-	return true;
+	do_group_exit(SIGKILL);
 }
 
 /*
@@ -377,10 +374,7 @@ void __init map_vsyscall(void)
 	extern char __vvar_page;
 	unsigned long physaddr_vvar_page = __pa_symbol(&__vvar_page);
 
-	__set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall,
-		     vsyscall_mode == NATIVE
-		     ? PAGE_KERNEL_VSYSCALL
-		     : PAGE_KERNEL_VVAR);
+	__set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall, PAGE_KERNEL_VVAR);
 	BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_FIRST_PAGE) !=
 		     (unsigned long)VSYSCALL_START);
 
diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
index b014d94..6d6ca7b 100644
--- a/arch/x86/kernel/x8664_ksyms_64.c
+++ b/arch/x86/kernel/x8664_ksyms_64.c
@@ -34,8 +34,6 @@ EXPORT_SYMBOL(copy_user_generic_string);
 EXPORT_SYMBOL(copy_user_generic_unrolled);
 EXPORT_SYMBOL(copy_user_enhanced_fast_string);
 EXPORT_SYMBOL(__copy_user_nocache);
-EXPORT_SYMBOL(_copy_from_user);
-EXPORT_SYMBOL(_copy_to_user);
 
 EXPORT_SYMBOL(copy_page);
 EXPORT_SYMBOL(clear_page);
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 45a14db..075bb9b 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -85,7 +85,7 @@ struct x86_init_ops x86_init __initdata = {
 	},
 };
 
-struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = {
+struct x86_cpuinit_ops x86_cpuinit __cpuinitconst = {
 	.early_percpu_clock_init	= x86_init_noop,
 	.setup_percpu_clockev		= setup_secondary_APIC_clock,
 };
@@ -93,7 +93,7 @@ struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = {
 static void default_nmi_init(void) { };
 static int default_i8042_detect(void) { return 1; };
 
-struct x86_platform_ops x86_platform = {
+struct x86_platform_ops x86_platform __read_only = {
 	.calibrate_tsc			= native_calibrate_tsc,
 	.get_wallclock			= mach_get_cmos_time,
 	.set_wallclock			= mach_set_rtc_mmss,
@@ -107,7 +107,7 @@ struct x86_platform_ops x86_platform = {
 };
 
 EXPORT_SYMBOL_GPL(x86_platform);
-struct x86_msi_ops x86_msi = {
+struct x86_msi_ops x86_msi __read_only = {
 	.setup_msi_irqs		= native_setup_msi_irqs,
 	.compose_msi_msg	= native_compose_msi_msg,
 	.teardown_msi_irq	= native_teardown_msi_irq,
@@ -116,7 +116,7 @@ struct x86_msi_ops x86_msi = {
 	.setup_hpet_msi		= default_setup_hpet_msi,
 };
 
-struct x86_io_apic_ops x86_io_apic_ops = {
+struct x86_io_apic_ops x86_io_apic_ops __read_only = {
 	.init			= native_io_apic_init_mappings,
 	.read			= native_io_apic_read,
 	.write			= native_io_apic_write,
diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index ada87a3..afea76d 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -199,6 +199,7 @@ static inline int save_user_xstate(struct xsave_struct __user *buf)
 {
 	int err;
 
+	buf = (struct xsave_struct __user *)____m(buf);
 	if (use_xsave())
 		err = xsave_user(buf);
 	else if (use_fxsr())
@@ -311,6 +312,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
  */
 static inline int restore_user_xstate(void __user *buf, u64 xbv, int fx_only)
 {
+	buf = (void __user *)____m(buf);
 	if (use_xsave()) {
 		if ((unsigned long)buf % 64 || fx_only) {
 			u64 init_bv = pcntxt_mask & ~XSTATE_FPSSE;
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index a20ecb5..d0e2194 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -124,15 +124,20 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
 			      struct kvm_cpuid2 *cpuid,
 			      struct kvm_cpuid_entry2 __user *entries)
 {
-	int r;
+	int r, i;
 
 	r = -E2BIG;
 	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
 		goto out;
 	r = -EFAULT;
-	if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
-			   cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
+	if (!access_ok(VERIFY_READ, entries, cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
 		goto out;
+	for (i = 0; i < cpuid->nent; ++i) {
+		struct kvm_cpuid_entry2 cpuid_entry;
+		if (__copy_from_user(&cpuid_entry, entries + i, sizeof(cpuid_entry)))
+			goto out;
+		vcpu->arch.cpuid_entries[i] = cpuid_entry;
+	}
 	vcpu->arch.cpuid_nent = cpuid->nent;
 	kvm_apic_set_version(vcpu);
 	kvm_x86_ops->cpuid_update(vcpu);
@@ -147,15 +152,19 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
 			      struct kvm_cpuid2 *cpuid,
 			      struct kvm_cpuid_entry2 __user *entries)
 {
-	int r;
+	int r, i;
 
 	r = -E2BIG;
 	if (cpuid->nent < vcpu->arch.cpuid_nent)
 		goto out;
 	r = -EFAULT;
-	if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
-			 vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
+	if (!access_ok(VERIFY_WRITE, entries, vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
 		goto out;
+	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
+		struct kvm_cpuid_entry2 cpuid_entry = vcpu->arch.cpuid_entries[i];
+		if (__copy_to_user(entries + i, &cpuid_entry, sizeof(cpuid_entry)))
+			goto out;
+	}
 	return 0;
 
 out:
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 59622c9..f338414 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -328,6 +328,7 @@ static void invalidate_registers(struct x86_emulate_ctxt *ctxt)
 
 #define ____emulate_2op(ctxt, _op, _x, _y, _suffix, _dsttype)	\
 	do {								\
+		unsigned long _tmp;					\
 		__asm__ __volatile__ (					\
 			_PRE_EFLAGS("0", "4", "2")			\
 			_op _suffix " %"_x"3,%1; "			\
@@ -342,8 +343,6 @@ static void invalidate_registers(struct x86_emulate_ctxt *ctxt)
 /* Raw emulation: instruction has two explicit operands. */
 #define __emulate_2op_nobyte(ctxt,_op,_wx,_wy,_lx,_ly,_qx,_qy)		\
 	do {								\
-		unsigned long _tmp;					\
-									\
 		switch ((ctxt)->dst.bytes) {				\
 		case 2:							\
 			____emulate_2op(ctxt,_op,_wx,_wy,"w",u16);	\
@@ -359,7 +358,6 @@ static void invalidate_registers(struct x86_emulate_ctxt *ctxt)
 
 #define __emulate_2op(ctxt,_op,_bx,_by,_wx,_wy,_lx,_ly,_qx,_qy)		     \
 	do {								     \
-		unsigned long _tmp;					     \
 		switch ((ctxt)->dst.bytes) {				     \
 		case 1:							     \
 			____emulate_2op(ctxt,_op,_bx,_by,"b",u8);	     \
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index f77df1c..6f20690 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -55,7 +55,7 @@
 #define APIC_BUS_CYCLE_NS 1
 
 /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
-#define apic_debug(fmt, arg...)
+#define apic_debug(fmt, arg...) do {} while (0)
 
 #define APIC_LVT_NUM			6
 /* 14 is the version for Xeon and Pentium 8.4.8*/
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 105dd5b..1b0ccc2 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -208,7 +208,7 @@ retry_walk:
 		if (unlikely(kvm_is_error_hva(host_addr)))
 			goto error;
 
-		ptep_user = (pt_element_t __user *)((void *)host_addr + offset);
+		ptep_user = (pt_element_t __force_user *)((void *)host_addr + offset);
 		if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte))))
 			goto error;
 		walker->ptep_user[walker->level - 1] = ptep_user;
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index e1b1ce2..f7b4b43 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3507,7 +3507,11 @@ static void reload_tss(struct kvm_vcpu *vcpu)
 	int cpu = raw_smp_processor_id();
 
 	struct svm_cpu_data *sd = per_cpu(svm_data, cpu);
+
+	pax_open_kernel();
 	sd->tss_desc->type = 9; /* available 32/64-bit TSS */
+	pax_close_kernel();
+
 	load_TR_desc();
 }
 
@@ -3901,6 +3905,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
 #endif
 #endif
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	__set_fs(current_thread_info()->addr_limit);
+#endif
+
 	reload_tss(vcpu);
 
 	local_irq_disable();
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 0af1807..06912bb 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1184,12 +1184,12 @@ static void vmcs_write64(unsigned long field, u64 value)
 #endif
 }
 
-static void vmcs_clear_bits(unsigned long field, u32 mask)
+static void vmcs_clear_bits(unsigned long field, unsigned long mask)
 {
 	vmcs_writel(field, vmcs_readl(field) & ~mask);
 }
 
-static void vmcs_set_bits(unsigned long field, u32 mask)
+static void vmcs_set_bits(unsigned long field, unsigned long mask)
 {
 	vmcs_writel(field, vmcs_readl(field) | mask);
 }
@@ -1390,7 +1390,11 @@ static void reload_tss(void)
 	struct desc_struct *descs;
 
 	descs = (void *)gdt->address;
+
+	pax_open_kernel();
 	descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
+	pax_close_kernel();
+
 	load_TR_desc();
 }
 
@@ -1614,6 +1618,10 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 		vmcs_writel(HOST_TR_BASE, kvm_read_tr_base()); /* 22.2.4 */
 		vmcs_writel(HOST_GDTR_BASE, gdt->address);   /* 22.2.4 */
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		vmcs_writel(HOST_CR3, read_cr3());  /* 22.2.3  FIXME: shadow tables */
+#endif
+
 		rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
 		vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
 		vmx->loaded_vmcs->cpu = cpu;
@@ -2779,8 +2787,11 @@ static __init int hardware_setup(void)
 	if (!cpu_has_vmx_flexpriority())
 		flexpriority_enabled = 0;
 
-	if (!cpu_has_vmx_tpr_shadow())
-		kvm_x86_ops->update_cr8_intercept = NULL;
+	if (!cpu_has_vmx_tpr_shadow()) {
+		pax_open_kernel();
+		*(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
+		pax_close_kernel();
+	}
 
 	if (enable_ept && !cpu_has_vmx_ept_2m_page())
 		kvm_disable_largepages();
@@ -2792,10 +2803,12 @@ static __init int hardware_setup(void)
 				!cpu_has_vmx_virtual_intr_delivery())
 		enable_apicv_reg_vid = 0;
 
+	pax_open_kernel();
 	if (enable_apicv_reg_vid)
-		kvm_x86_ops->update_cr8_intercept = NULL;
+		*(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
 	else
-		kvm_x86_ops->hwapic_irr_update = NULL;
+		*(void **)&kvm_x86_ops->hwapic_irr_update = NULL;
+	pax_close_kernel();
 
 	if (nested)
 		nested_vmx_setup_ctls_msrs();
@@ -3883,7 +3896,10 @@ static void vmx_set_constant_host_state(void)
 
 	vmcs_writel(HOST_CR0, read_cr0() & ~X86_CR0_TS);  /* 22.2.3 */
 	vmcs_writel(HOST_CR4, read_cr4());  /* 22.2.3, 22.2.5 */
+
+#ifndef CONFIG_PAX_PER_CPU_PGD
 	vmcs_writel(HOST_CR3, read_cr3());  /* 22.2.3  FIXME: shadow tables */
+#endif
 
 	vmcs_write16(HOST_CS_SELECTOR, __KERNEL_CS);  /* 22.2.4 */
 #ifdef CONFIG_X86_64
@@ -3904,7 +3920,7 @@ static void vmx_set_constant_host_state(void)
 	native_store_idt(&dt);
 	vmcs_writel(HOST_IDTR_BASE, dt.address);   /* 22.2.4 */
 
-	vmcs_writel(HOST_RIP, vmx_return); /* 22.2.5 */
+	vmcs_writel(HOST_RIP, ktla_ktva(vmx_return)); /* 22.2.5 */
 
 	rdmsr(MSR_IA32_SYSENTER_CS, low32, high32);
 	vmcs_write32(HOST_IA32_SYSENTER_CS, low32);
@@ -6580,6 +6596,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 		"jmp 2f \n\t"
 		"1: " __ex(ASM_VMX_VMRESUME) "\n\t"
 		"2: "
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		"ljmp %[cs],$3f\n\t"
+		"3: "
+#endif
+
 		/* Save guest registers, load host registers, keep flags */
 		"mov %0, %c[wordsize](%%" _ASM_SP ") \n\t"
 		"pop %0 \n\t"
@@ -6632,6 +6654,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 #endif
 		[cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)),
 		[wordsize]"i"(sizeof(ulong))
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		,[cs]"i"(__KERNEL_CS)
+#endif
+
 	      : "cc", "memory"
 #ifdef CONFIG_X86_64
 		, "rax", "rbx", "rdi", "rsi"
@@ -6645,7 +6672,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 	if (debugctlmsr)
 		update_debugctlmsr(debugctlmsr);
 
-#ifndef CONFIG_X86_64
+#ifdef CONFIG_X86_32
 	/*
 	 * The sysexit path does not restore ds/es, so we must set them to
 	 * a reasonable value ourselves.
@@ -6654,8 +6681,18 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 	 * may be executed in interrupt context, which saves and restore segments
 	 * around it, nullifying its effect.
 	 */
-	loadsegment(ds, __USER_DS);
-	loadsegment(es, __USER_DS);
+	loadsegment(ds, __KERNEL_DS);
+	loadsegment(es, __KERNEL_DS);
+	loadsegment(ss, __KERNEL_DS);
+
+#ifdef CONFIG_PAX_KERNEXEC
+	loadsegment(fs, __KERNEL_PERCPU);
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	__set_fs(current_thread_info()->addr_limit);
+#endif
+
 #endif
 
 	vcpu->arch.regs_avail = ~((1 << VCPU_REGS_RIP) | (1 << VCPU_REGS_RSP)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e172132..c3d3e27 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1686,8 +1686,8 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data)
 {
 	struct kvm *kvm = vcpu->kvm;
 	int lm = is_long_mode(vcpu);
-	u8 *blob_addr = lm ? (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_64
-		: (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
+	u8 __user *blob_addr = lm ? (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_64
+		: (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
 	u8 blob_size = lm ? kvm->arch.xen_hvm_config.blob_size_64
 		: kvm->arch.xen_hvm_config.blob_size_32;
 	u32 page_num = data & ~PAGE_MASK;
@@ -2567,6 +2567,8 @@ long kvm_arch_dev_ioctl(struct file *filp,
 		if (n < msr_list.nmsrs)
 			goto out;
 		r = -EFAULT;
+		if (num_msrs_to_save > ARRAY_SIZE(msrs_to_save))
+			goto out;
 		if (copy_to_user(user_msr_list->indices, &msrs_to_save,
 				 num_msrs_to_save * sizeof(u32)))
 			goto out;
@@ -2696,7 +2698,7 @@ static int kvm_vcpu_ioctl_set_lapic(struct kvm_vcpu *vcpu,
 static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
 				    struct kvm_interrupt *irq)
 {
-	if (irq->irq < 0 || irq->irq >= KVM_NR_INTERRUPTS)
+	if (irq->irq >= KVM_NR_INTERRUPTS)
 		return -EINVAL;
 	if (irqchip_in_kernel(vcpu->kvm))
 		return -ENXIO;
@@ -5247,7 +5249,7 @@ static struct notifier_block pvclock_gtod_notifier = {
 };
 #endif
 
-int kvm_arch_init(void *opaque)
+int kvm_arch_init(const void *opaque)
 {
 	int r;
 	struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 7114c63..a1018fc 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -1201,9 +1201,10 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
  * Rebooting also tells the Host we're finished, but the RESTART flag tells the
  * Launcher to reboot us.
  */
-static void lguest_restart(char *reason)
+static __noreturn void lguest_restart(char *reason)
 {
 	hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0);
+	BUG();
 }
 
 /*G:050
diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
index 00933d5..3a64af9 100644
--- a/arch/x86/lib/atomic64_386_32.S
+++ b/arch/x86/lib/atomic64_386_32.S
@@ -48,6 +48,10 @@ BEGIN(read)
 	movl  (v), %eax
 	movl 4(v), %edx
 RET_ENDP
+BEGIN(read_unchecked)
+	movl  (v), %eax
+	movl 4(v), %edx
+RET_ENDP
 #undef v
 
 #define v %esi
@@ -55,6 +59,10 @@ BEGIN(set)
 	movl %ebx,  (v)
 	movl %ecx, 4(v)
 RET_ENDP
+BEGIN(set_unchecked)
+	movl %ebx,  (v)
+	movl %ecx, 4(v)
+RET_ENDP
 #undef v
 
 #define v  %esi
@@ -70,6 +78,20 @@ RET_ENDP
 BEGIN(add)
 	addl %eax,  (v)
 	adcl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 0f
+	subl %eax,  (v)
+	sbbl %edx, 4(v)
+	int $4
+0:
+	_ASM_EXTABLE(0b, 0b)
+#endif
+
+RET_ENDP
+BEGIN(add_unchecked)
+	addl %eax,  (v)
+	adcl %edx, 4(v)
 RET_ENDP
 #undef v
 
@@ -77,6 +99,24 @@ RET_ENDP
 BEGIN(add_return)
 	addl  (v), %eax
 	adcl 4(v), %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
+	movl %eax,  (v)
+	movl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+2:
+#endif
+
+RET_ENDP
+BEGIN(add_return_unchecked)
+	addl  (v), %eax
+	adcl 4(v), %edx
 	movl %eax,  (v)
 	movl %edx, 4(v)
 RET_ENDP
@@ -86,6 +126,20 @@ RET_ENDP
 BEGIN(sub)
 	subl %eax,  (v)
 	sbbl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 0f
+	addl %eax,  (v)
+	adcl %edx, 4(v)
+	int $4
+0:
+	_ASM_EXTABLE(0b, 0b)
+#endif
+
+RET_ENDP
+BEGIN(sub_unchecked)
+	subl %eax,  (v)
+	sbbl %edx, 4(v)
 RET_ENDP
 #undef v
 
@@ -96,6 +150,27 @@ BEGIN(sub_return)
 	sbbl $0, %edx
 	addl  (v), %eax
 	adcl 4(v), %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
+	movl %eax,  (v)
+	movl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+2:
+#endif
+
+RET_ENDP
+BEGIN(sub_return_unchecked)
+	negl %edx
+	negl %eax
+	sbbl $0, %edx
+	addl  (v), %eax
+	adcl 4(v), %edx
 	movl %eax,  (v)
 	movl %edx, 4(v)
 RET_ENDP
@@ -105,6 +180,20 @@ RET_ENDP
 BEGIN(inc)
 	addl $1,  (v)
 	adcl $0, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 0f
+	subl $1,  (v)
+	sbbl $0, 4(v)
+	int $4
+0:
+	_ASM_EXTABLE(0b, 0b)
+#endif
+
+RET_ENDP
+BEGIN(inc_unchecked)
+	addl $1,  (v)
+	adcl $0, 4(v)
 RET_ENDP
 #undef v
 
@@ -114,6 +203,26 @@ BEGIN(inc_return)
 	movl 4(v), %edx
 	addl $1, %eax
 	adcl $0, %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
+	movl %eax,  (v)
+	movl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+2:
+#endif
+
+RET_ENDP
+BEGIN(inc_return_unchecked)
+	movl  (v), %eax
+	movl 4(v), %edx
+	addl $1, %eax
+	adcl $0, %edx
 	movl %eax,  (v)
 	movl %edx, 4(v)
 RET_ENDP
@@ -123,6 +232,20 @@ RET_ENDP
 BEGIN(dec)
 	subl $1,  (v)
 	sbbl $0, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 0f
+	addl $1,  (v)
+	adcl $0, 4(v)
+	int $4
+0:
+	_ASM_EXTABLE(0b, 0b)
+#endif
+
+RET_ENDP
+BEGIN(dec_unchecked)
+	subl $1,  (v)
+	sbbl $0, 4(v)
 RET_ENDP
 #undef v
 
@@ -132,6 +255,26 @@ BEGIN(dec_return)
 	movl 4(v), %edx
 	subl $1, %eax
 	sbbl $0, %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
+	movl %eax,  (v)
+	movl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+2:
+#endif
+
+RET_ENDP
+BEGIN(dec_return_unchecked)
+	movl  (v), %eax
+	movl 4(v), %edx
+	subl $1, %eax
+	sbbl $0, %edx
 	movl %eax,  (v)
 	movl %edx, 4(v)
 RET_ENDP
@@ -143,6 +286,13 @@ BEGIN(add_unless)
 	adcl %edx, %edi
 	addl  (v), %eax
 	adcl 4(v), %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
 	cmpl %eax, %ecx
 	je 3f
 1:
@@ -168,6 +318,13 @@ BEGIN(inc_not_zero)
 1:
 	addl $1, %eax
 	adcl $0, %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
 	movl %eax,  (v)
 	movl %edx, 4(v)
 	movl $1, %eax
@@ -186,6 +343,13 @@ BEGIN(dec_if_positive)
 	movl 4(v), %edx
 	subl $1, %eax
 	sbbl $0, %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 1f)
+#endif
+
 	js 1f
 	movl %eax,  (v)
 	movl %edx, 4(v)
diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
index f5cc9eb..51fa319 100644
--- a/arch/x86/lib/atomic64_cx8_32.S
+++ b/arch/x86/lib/atomic64_cx8_32.S
@@ -35,10 +35,20 @@ ENTRY(atomic64_read_cx8)
 	CFI_STARTPROC
 
 	read64 %ecx
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(atomic64_read_cx8)
 
+ENTRY(atomic64_read_unchecked_cx8)
+	CFI_STARTPROC
+
+	read64 %ecx
+	pax_force_retaddr
+	ret
+	CFI_ENDPROC
+ENDPROC(atomic64_read_unchecked_cx8)
+
 ENTRY(atomic64_set_cx8)
 	CFI_STARTPROC
 
@@ -48,10 +58,25 @@ ENTRY(atomic64_set_cx8)
 	cmpxchg8b (%esi)
 	jne 1b
 
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(atomic64_set_cx8)
 
+ENTRY(atomic64_set_unchecked_cx8)
+	CFI_STARTPROC
+
+1:
+/* we don't need LOCK_PREFIX since aligned 64-bit writes
+ * are atomic on 586 and newer */
+	cmpxchg8b (%esi)
+	jne 1b
+
+	pax_force_retaddr
+	ret
+	CFI_ENDPROC
+ENDPROC(atomic64_set_unchecked_cx8)
+
 ENTRY(atomic64_xchg_cx8)
 	CFI_STARTPROC
 
@@ -60,12 +85,13 @@ ENTRY(atomic64_xchg_cx8)
 	cmpxchg8b (%esi)
 	jne 1b
 
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(atomic64_xchg_cx8)
 
-.macro addsub_return func ins insc
-ENTRY(atomic64_\func\()_return_cx8)
+.macro addsub_return func ins insc unchecked=""
+ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
 	CFI_STARTPROC
 	SAVE ebp
 	SAVE ebx
@@ -82,27 +108,44 @@ ENTRY(atomic64_\func\()_return_cx8)
 	movl %edx, %ecx
 	\ins\()l %esi, %ebx
 	\insc\()l %edi, %ecx
+
+.ifb \unchecked
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+2:
+	_ASM_EXTABLE(2b, 3f)
+#endif
+.endif
+
 	LOCK_PREFIX
 	cmpxchg8b (%ebp)
 	jne 1b
-
-10:
 	movl %ebx, %eax
 	movl %ecx, %edx
+
+.ifb \unchecked
+#ifdef CONFIG_PAX_REFCOUNT
+3:
+#endif
+.endif
+
 	RESTORE edi
 	RESTORE esi
 	RESTORE ebx
 	RESTORE ebp
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
-ENDPROC(atomic64_\func\()_return_cx8)
+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
 .endm
 
 addsub_return add add adc
 addsub_return sub sub sbb
+addsub_return add add adc _unchecked
+addsub_return sub sub sbb _unchecked
 
-.macro incdec_return func ins insc
-ENTRY(atomic64_\func\()_return_cx8)
+.macro incdec_return func ins insc unchecked=""
+ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
 	CFI_STARTPROC
 	SAVE ebx
 
@@ -112,21 +155,39 @@ ENTRY(atomic64_\func\()_return_cx8)
 	movl %edx, %ecx
 	\ins\()l $1, %ebx
 	\insc\()l $0, %ecx
+
+.ifb \unchecked
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+2:
+	_ASM_EXTABLE(2b, 3f)
+#endif
+.endif
+
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
 	jne 1b
 
-10:
 	movl %ebx, %eax
 	movl %ecx, %edx
+
+.ifb \unchecked
+#ifdef CONFIG_PAX_REFCOUNT
+3:
+#endif
+.endif
+
 	RESTORE ebx
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
-ENDPROC(atomic64_\func\()_return_cx8)
+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
 .endm
 
 incdec_return inc add adc
 incdec_return dec sub sbb
+incdec_return inc add adc _unchecked
+incdec_return dec sub sbb _unchecked
 
 ENTRY(atomic64_dec_if_positive_cx8)
 	CFI_STARTPROC
@@ -138,6 +199,13 @@ ENTRY(atomic64_dec_if_positive_cx8)
 	movl %edx, %ecx
 	subl $1, %ebx
 	sbb $0, %ecx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
 	js 2f
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
@@ -147,6 +215,7 @@ ENTRY(atomic64_dec_if_positive_cx8)
 	movl %ebx, %eax
 	movl %ecx, %edx
 	RESTORE ebx
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(atomic64_dec_if_positive_cx8)
@@ -171,6 +240,13 @@ ENTRY(atomic64_add_unless_cx8)
 	movl %edx, %ecx
 	addl %ebp, %ebx
 	adcl %edi, %ecx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 3f)
+#endif
+
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
 	jne 1b
@@ -181,6 +257,7 @@ ENTRY(atomic64_add_unless_cx8)
 	CFI_ADJUST_CFA_OFFSET -8
 	RESTORE ebx
 	RESTORE ebp
+	pax_force_retaddr
 	ret
 4:
 	cmpl %edx, 4(%esp)
@@ -203,6 +280,13 @@ ENTRY(atomic64_inc_not_zero_cx8)
 	xorl %ecx, %ecx
 	addl $1, %ebx
 	adcl %edx, %ecx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 3f)
+#endif
+
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
 	jne 1b
@@ -210,6 +294,7 @@ ENTRY(atomic64_inc_not_zero_cx8)
 	movl $1, %eax
 3:
 	RESTORE ebx
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(atomic64_inc_not_zero_cx8)
diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
index 2af5df3..62b1a5a 100644
--- a/arch/x86/lib/checksum_32.S
+++ b/arch/x86/lib/checksum_32.S
@@ -29,7 +29,8 @@
 #include <asm/dwarf2.h>
 #include <asm/errno.h>
 #include <asm/asm.h>
-				
+#include <asm/segment.h>
+
 /*
  * computes a partial checksum, e.g. for TCP/UDP fragments
  */
@@ -293,9 +294,24 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
 
 #define ARGBASE 16		
 #define FP		12
-		
-ENTRY(csum_partial_copy_generic)
+
+ENTRY(csum_partial_copy_generic_to_user)
 	CFI_STARTPROC
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl_cfi %gs
+	popl_cfi %es
+	jmp csum_partial_copy_generic
+#endif
+
+ENTRY(csum_partial_copy_generic_from_user)
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl_cfi %gs
+	popl_cfi %ds
+#endif
+
+ENTRY(csum_partial_copy_generic)
 	subl  $4,%esp	
 	CFI_ADJUST_CFA_OFFSET 4
 	pushl_cfi %edi
@@ -317,7 +333,7 @@ ENTRY(csum_partial_copy_generic)
 	jmp 4f
 SRC(1:	movw (%esi), %bx	)
 	addl $2, %esi
-DST(	movw %bx, (%edi)	)
+DST(	movw %bx, %es:(%edi)	)
 	addl $2, %edi
 	addw %bx, %ax	
 	adcl $0, %eax
@@ -329,30 +345,30 @@ DST(	movw %bx, (%edi)	)
 SRC(1:	movl (%esi), %ebx	)
 SRC(	movl 4(%esi), %edx	)
 	adcl %ebx, %eax
-DST(	movl %ebx, (%edi)	)
+DST(	movl %ebx, %es:(%edi)	)
 	adcl %edx, %eax
-DST(	movl %edx, 4(%edi)	)
+DST(	movl %edx, %es:4(%edi)	)
 
 SRC(	movl 8(%esi), %ebx	)
 SRC(	movl 12(%esi), %edx	)
 	adcl %ebx, %eax
-DST(	movl %ebx, 8(%edi)	)
+DST(	movl %ebx, %es:8(%edi)	)
 	adcl %edx, %eax
-DST(	movl %edx, 12(%edi)	)
+DST(	movl %edx, %es:12(%edi)	)
 
 SRC(	movl 16(%esi), %ebx 	)
 SRC(	movl 20(%esi), %edx	)
 	adcl %ebx, %eax
-DST(	movl %ebx, 16(%edi)	)
+DST(	movl %ebx, %es:16(%edi)	)
 	adcl %edx, %eax
-DST(	movl %edx, 20(%edi)	)
+DST(	movl %edx, %es:20(%edi)	)
 
 SRC(	movl 24(%esi), %ebx	)
 SRC(	movl 28(%esi), %edx	)
 	adcl %ebx, %eax
-DST(	movl %ebx, 24(%edi)	)
+DST(	movl %ebx, %es:24(%edi)	)
 	adcl %edx, %eax
-DST(	movl %edx, 28(%edi)	)
+DST(	movl %edx, %es:28(%edi)	)
 
 	lea 32(%esi), %esi
 	lea 32(%edi), %edi
@@ -366,7 +382,7 @@ DST(	movl %edx, 28(%edi)	)
 	shrl $2, %edx			# This clears CF
 SRC(3:	movl (%esi), %ebx	)
 	adcl %ebx, %eax
-DST(	movl %ebx, (%edi)	)
+DST(	movl %ebx, %es:(%edi)	)
 	lea 4(%esi), %esi
 	lea 4(%edi), %edi
 	dec %edx
@@ -378,12 +394,12 @@ DST(	movl %ebx, (%edi)	)
 	jb 5f
 SRC(	movw (%esi), %cx	)
 	leal 2(%esi), %esi
-DST(	movw %cx, (%edi)	)
+DST(	movw %cx, %es:(%edi)	)
 	leal 2(%edi), %edi
 	je 6f
 	shll $16,%ecx
 SRC(5:	movb (%esi), %cl	)
-DST(	movb %cl, (%edi)	)
+DST(	movb %cl, %es:(%edi)	)
 6:	addl %ecx, %eax
 	adcl $0, %eax
 7:
@@ -394,7 +410,7 @@ DST(	movb %cl, (%edi)	)
 
 6001:
 	movl ARGBASE+20(%esp), %ebx	# src_err_ptr
-	movl $-EFAULT, (%ebx)
+	movl $-EFAULT, %ss:(%ebx)
 
 	# zero the complete destination - computing the rest
 	# is too much work 
@@ -407,11 +423,15 @@ DST(	movb %cl, (%edi)	)
 
 6002:
 	movl ARGBASE+24(%esp), %ebx	# dst_err_ptr
-	movl $-EFAULT,(%ebx)
+	movl $-EFAULT,%ss:(%ebx)
 	jmp 5000b
 
 .previous
 
+	pushl_cfi %ss
+	popl_cfi %ds
+	pushl_cfi %ss
+	popl_cfi %es
 	popl_cfi %ebx
 	CFI_RESTORE ebx
 	popl_cfi %esi
@@ -421,26 +441,43 @@ DST(	movb %cl, (%edi)	)
 	popl_cfi %ecx			# equivalent to addl $4,%esp
 	ret	
 	CFI_ENDPROC
-ENDPROC(csum_partial_copy_generic)
+ENDPROC(csum_partial_copy_generic_to_user)
 
 #else
 
 /* Version for PentiumII/PPro */
 
 #define ROUND1(x) \
+	nop; nop; nop;				\
 	SRC(movl x(%esi), %ebx	)	;	\
 	addl %ebx, %eax			;	\
-	DST(movl %ebx, x(%edi)	)	; 
+	DST(movl %ebx, %es:x(%edi))	;
 
 #define ROUND(x) \
+	nop; nop; nop;				\
 	SRC(movl x(%esi), %ebx	)	;	\
 	adcl %ebx, %eax			;	\
-	DST(movl %ebx, x(%edi)	)	;
+	DST(movl %ebx, %es:x(%edi))	;
 
 #define ARGBASE 12
-		
-ENTRY(csum_partial_copy_generic)
+
+ENTRY(csum_partial_copy_generic_to_user)
 	CFI_STARTPROC
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl_cfi %gs
+	popl_cfi %es
+	jmp csum_partial_copy_generic
+#endif
+
+ENTRY(csum_partial_copy_generic_from_user)
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl_cfi %gs
+	popl_cfi %ds
+#endif
+
+ENTRY(csum_partial_copy_generic)
 	pushl_cfi %ebx
 	CFI_REL_OFFSET ebx, 0
 	pushl_cfi %edi
@@ -461,7 +498,7 @@ ENTRY(csum_partial_copy_generic)
 	subl %ebx, %edi  
 	lea  -1(%esi),%edx
 	andl $-32,%edx
-	lea 3f(%ebx,%ebx), %ebx
+	lea 3f(%ebx,%ebx,2), %ebx
 	testl %esi, %esi 
 	jmp *%ebx
 1:	addl $64,%esi
@@ -482,19 +519,19 @@ ENTRY(csum_partial_copy_generic)
 	jb 5f
 SRC(	movw (%esi), %dx         )
 	leal 2(%esi), %esi
-DST(	movw %dx, (%edi)         )
+DST(	movw %dx, %es:(%edi)     )
 	leal 2(%edi), %edi
 	je 6f
 	shll $16,%edx
 5:
 SRC(	movb (%esi), %dl         )
-DST(	movb %dl, (%edi)         )
+DST(	movb %dl, %es:(%edi)     )
 6:	addl %edx, %eax
 	adcl $0, %eax
 7:
 .section .fixup, "ax"
 6001:	movl	ARGBASE+20(%esp), %ebx	# src_err_ptr	
-	movl $-EFAULT, (%ebx)
+	movl $-EFAULT, %ss:(%ebx)
 	# zero the complete destination (computing the rest is too much work)
 	movl ARGBASE+8(%esp),%edi	# dst
 	movl ARGBASE+12(%esp),%ecx	# len
@@ -502,10 +539,17 @@ DST(	movb %dl, (%edi)         )
 	rep; stosb
 	jmp 7b
 6002:	movl ARGBASE+24(%esp), %ebx	# dst_err_ptr
-	movl $-EFAULT, (%ebx)
+	movl $-EFAULT, %ss:(%ebx)
 	jmp  7b			
 .previous				
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl_cfi %ss
+	popl_cfi %ds
+	pushl_cfi %ss
+	popl_cfi %es
+#endif
+
 	popl_cfi %esi
 	CFI_RESTORE esi
 	popl_cfi %edi
@@ -514,7 +558,7 @@ DST(	movb %dl, (%edi)         )
 	CFI_RESTORE ebx
 	ret
 	CFI_ENDPROC
-ENDPROC(csum_partial_copy_generic)
+ENDPROC(csum_partial_copy_generic_to_user)
 				
 #undef ROUND
 #undef ROUND1		
diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
index f2145cf..cea889d 100644
--- a/arch/x86/lib/clear_page_64.S
+++ b/arch/x86/lib/clear_page_64.S
@@ -11,6 +11,7 @@ ENTRY(clear_page_c)
 	movl $4096/8,%ecx
 	xorl %eax,%eax
 	rep stosq
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(clear_page_c)
@@ -20,6 +21,7 @@ ENTRY(clear_page_c_e)
 	movl $4096,%ecx
 	xorl %eax,%eax
 	rep stosb
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(clear_page_c_e)
@@ -43,6 +45,7 @@ ENTRY(clear_page)
 	leaq	64(%rdi),%rdi
 	jnz	.Lloop
 	nop
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 .Lclear_page_end:
@@ -58,7 +61,7 @@ ENDPROC(clear_page)
 
 #include <asm/cpufeature.h>
 
-	.section .altinstr_replacement,"ax"
+	.section .altinstr_replacement,"a"
 1:	.byte 0xeb					/* jmp <disp8> */
 	.byte (clear_page_c - clear_page) - (2f - 1b)	/* offset */
 2:	.byte 0xeb					/* jmp <disp8> */
diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S
index 1e572c5..2a162cd 100644
--- a/arch/x86/lib/cmpxchg16b_emu.S
+++ b/arch/x86/lib/cmpxchg16b_emu.S
@@ -53,11 +53,13 @@ this_cpu_cmpxchg16b_emu:
 
 	popf
 	mov $1, %al
+	pax_force_retaddr
 	ret
 
  not_same:
 	popf
 	xor %al,%al
+	pax_force_retaddr
 	ret
 
 CFI_ENDPROC
diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
index 176cca6..1166c50 100644
--- a/arch/x86/lib/copy_page_64.S
+++ b/arch/x86/lib/copy_page_64.S
@@ -9,6 +9,7 @@ copy_page_rep:
 	CFI_STARTPROC
 	movl	$4096/8, %ecx
 	rep	movsq
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(copy_page_rep)
@@ -20,12 +21,14 @@ ENDPROC(copy_page_rep)
 
 ENTRY(copy_page)
 	CFI_STARTPROC
-	subq	$2*8,	%rsp
-	CFI_ADJUST_CFA_OFFSET 2*8
+	subq	$3*8,	%rsp
+	CFI_ADJUST_CFA_OFFSET 3*8
 	movq	%rbx,	(%rsp)
 	CFI_REL_OFFSET rbx, 0
 	movq	%r12,	1*8(%rsp)
 	CFI_REL_OFFSET r12, 1*8
+	movq	%r13,	2*8(%rsp)
+	CFI_REL_OFFSET r13, 2*8
 
 	movl	$(4096/64)-5,	%ecx
 	.p2align 4
@@ -36,7 +39,7 @@ ENTRY(copy_page)
 	movq	0x8*2(%rsi), %rdx
 	movq	0x8*3(%rsi), %r8
 	movq	0x8*4(%rsi), %r9
-	movq	0x8*5(%rsi), %r10
+	movq	0x8*5(%rsi), %r13
 	movq	0x8*6(%rsi), %r11
 	movq	0x8*7(%rsi), %r12
 
@@ -47,7 +50,7 @@ ENTRY(copy_page)
 	movq	%rdx, 0x8*2(%rdi)
 	movq	%r8,  0x8*3(%rdi)
 	movq	%r9,  0x8*4(%rdi)
-	movq	%r10, 0x8*5(%rdi)
+	movq	%r13, 0x8*5(%rdi)
 	movq	%r11, 0x8*6(%rdi)
 	movq	%r12, 0x8*7(%rdi)
 
@@ -66,7 +69,7 @@ ENTRY(copy_page)
 	movq	0x8*2(%rsi), %rdx
 	movq	0x8*3(%rsi), %r8
 	movq	0x8*4(%rsi), %r9
-	movq	0x8*5(%rsi), %r10
+	movq	0x8*5(%rsi), %r13
 	movq	0x8*6(%rsi), %r11
 	movq	0x8*7(%rsi), %r12
 
@@ -75,7 +78,7 @@ ENTRY(copy_page)
 	movq	%rdx, 0x8*2(%rdi)
 	movq	%r8,  0x8*3(%rdi)
 	movq	%r9,  0x8*4(%rdi)
-	movq	%r10, 0x8*5(%rdi)
+	movq	%r13, 0x8*5(%rdi)
 	movq	%r11, 0x8*6(%rdi)
 	movq	%r12, 0x8*7(%rdi)
 
@@ -87,8 +90,11 @@ ENTRY(copy_page)
 	CFI_RESTORE rbx
 	movq	1*8(%rsp), %r12
 	CFI_RESTORE r12
-	addq	$2*8, %rsp
-	CFI_ADJUST_CFA_OFFSET -2*8
+	movq	2*8(%rsp), %r13
+	CFI_RESTORE r13
+	addq	$3*8, %rsp
+	CFI_ADJUST_CFA_OFFSET -3*8
+	pax_force_retaddr
 	ret
 .Lcopy_page_end:
 	CFI_ENDPROC
@@ -99,7 +105,7 @@ ENDPROC(copy_page)
 
 #include <asm/cpufeature.h>
 
-	.section .altinstr_replacement,"ax"
+	.section .altinstr_replacement,"a"
 1:	.byte 0xeb					/* jmp <disp8> */
 	.byte (copy_page_rep - copy_page) - (2f - 1b)	/* offset */
 2:
diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index a30ca15..d25fab6 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -18,6 +18,7 @@
 #include <asm/alternative-asm.h>
 #include <asm/asm.h>
 #include <asm/smap.h>
+#include <asm/pgtable.h>
 
 /*
  * By placing feature2 after feature1 in altinstructions section, we logically
@@ -31,7 +32,7 @@
 	.byte 0xe9	/* 32bit jump */
 	.long \orig-1f	/* by default jump to orig */
 1:
-	.section .altinstr_replacement,"ax"
+	.section .altinstr_replacement,"a"
 2:	.byte 0xe9			/* near jump with 32bit immediate */
 	.long \alt1-1b /* offset */   /* or alternatively to alt1 */
 3:	.byte 0xe9			/* near jump with 32bit immediate */
@@ -70,47 +71,20 @@
 #endif
 	.endm
 
-/* Standard copy_to_user with segment limit checking */
-ENTRY(_copy_to_user)
-	CFI_STARTPROC
-	GET_THREAD_INFO(%rax)
-	movq %rdi,%rcx
-	addq %rdx,%rcx
-	jc bad_to_user
-	cmpq TI_addr_limit(%rax),%rcx
-	ja bad_to_user
-	ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS,	\
-		copy_user_generic_unrolled,copy_user_generic_string,	\
-		copy_user_enhanced_fast_string
-	CFI_ENDPROC
-ENDPROC(_copy_to_user)
-
-/* Standard copy_from_user with segment limit checking */
-ENTRY(_copy_from_user)
-	CFI_STARTPROC
-	GET_THREAD_INFO(%rax)
-	movq %rsi,%rcx
-	addq %rdx,%rcx
-	jc bad_from_user
-	cmpq TI_addr_limit(%rax),%rcx
-	ja bad_from_user
-	ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS,	\
-		copy_user_generic_unrolled,copy_user_generic_string,	\
-		copy_user_enhanced_fast_string
-	CFI_ENDPROC
-ENDPROC(_copy_from_user)
-
 	.section .fixup,"ax"
 	/* must zero dest */
 ENTRY(bad_from_user)
 bad_from_user:
 	CFI_STARTPROC
+	testl %edx,%edx
+	js bad_to_user
 	movl %edx,%ecx
 	xorl %eax,%eax
 	rep
 	stosb
 bad_to_user:
 	movl %edx,%eax
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(bad_from_user)
@@ -141,19 +115,19 @@ ENTRY(copy_user_generic_unrolled)
 	jz 17f
 1:	movq (%rsi),%r8
 2:	movq 1*8(%rsi),%r9
-3:	movq 2*8(%rsi),%r10
+3:	movq 2*8(%rsi),%rax
 4:	movq 3*8(%rsi),%r11
 5:	movq %r8,(%rdi)
 6:	movq %r9,1*8(%rdi)
-7:	movq %r10,2*8(%rdi)
+7:	movq %rax,2*8(%rdi)
 8:	movq %r11,3*8(%rdi)
 9:	movq 4*8(%rsi),%r8
 10:	movq 5*8(%rsi),%r9
-11:	movq 6*8(%rsi),%r10
+11:	movq 6*8(%rsi),%rax
 12:	movq 7*8(%rsi),%r11
 13:	movq %r8,4*8(%rdi)
 14:	movq %r9,5*8(%rdi)
-15:	movq %r10,6*8(%rdi)
+15:	movq %rax,6*8(%rdi)
 16:	movq %r11,7*8(%rdi)
 	leaq 64(%rsi),%rsi
 	leaq 64(%rdi),%rdi
@@ -180,6 +154,7 @@ ENTRY(copy_user_generic_unrolled)
 	jnz 21b
 23:	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 
 	.section .fixup,"ax"
@@ -251,6 +226,7 @@ ENTRY(copy_user_generic_string)
 	movsb
 4:	xorl %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 
 	.section .fixup,"ax"
@@ -286,6 +262,7 @@ ENTRY(copy_user_enhanced_fast_string)
 	movsb
 2:	xorl %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 
 	.section .fixup,"ax"
diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S
index 6a4f43c..f08b4a2 100644
--- a/arch/x86/lib/copy_user_nocache_64.S
+++ b/arch/x86/lib/copy_user_nocache_64.S
@@ -8,6 +8,7 @@
 
 #include <linux/linkage.h>
 #include <asm/dwarf2.h>
+#include <asm/alternative-asm.h>
 
 #define FIX_ALIGNMENT 1
 
@@ -16,6 +17,7 @@
 #include <asm/thread_info.h>
 #include <asm/asm.h>
 #include <asm/smap.h>
+#include <asm/pgtable.h>
 
 	.macro ALIGN_DESTINATION
 #ifdef FIX_ALIGNMENT
@@ -49,6 +51,15 @@
  */
 ENTRY(__copy_user_nocache)
 	CFI_STARTPROC
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	mov pax_user_shadow_base,%rcx
+	cmp %rcx,%rsi
+	jae 1f
+	add %rcx,%rsi
+1:
+#endif
+
 	ASM_STAC
 	cmpl $8,%edx
 	jb 20f		/* less then 8 bytes, go to byte copy loop */
@@ -59,19 +70,19 @@ ENTRY(__copy_user_nocache)
 	jz 17f
 1:	movq (%rsi),%r8
 2:	movq 1*8(%rsi),%r9
-3:	movq 2*8(%rsi),%r10
+3:	movq 2*8(%rsi),%rax
 4:	movq 3*8(%rsi),%r11
 5:	movnti %r8,(%rdi)
 6:	movnti %r9,1*8(%rdi)
-7:	movnti %r10,2*8(%rdi)
+7:	movnti %rax,2*8(%rdi)
 8:	movnti %r11,3*8(%rdi)
 9:	movq 4*8(%rsi),%r8
 10:	movq 5*8(%rsi),%r9
-11:	movq 6*8(%rsi),%r10
+11:	movq 6*8(%rsi),%rax
 12:	movq 7*8(%rsi),%r11
 13:	movnti %r8,4*8(%rdi)
 14:	movnti %r9,5*8(%rdi)
-15:	movnti %r10,6*8(%rdi)
+15:	movnti %rax,6*8(%rdi)
 16:	movnti %r11,7*8(%rdi)
 	leaq 64(%rsi),%rsi
 	leaq 64(%rdi),%rdi
@@ -99,6 +110,7 @@ ENTRY(__copy_user_nocache)
 23:	xorl %eax,%eax
 	ASM_CLAC
 	sfence
+	pax_force_retaddr
 	ret
 
 	.section .fixup,"ax"
diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
index 2419d5f..953ee51 100644
--- a/arch/x86/lib/csum-copy_64.S
+++ b/arch/x86/lib/csum-copy_64.S
@@ -9,6 +9,7 @@
 #include <asm/dwarf2.h>
 #include <asm/errno.h>
 #include <asm/asm.h>
+#include <asm/alternative-asm.h>
 
 /*
  * Checksum copy with exception handling.
@@ -220,6 +221,7 @@ ENTRY(csum_partial_copy_generic)
 	CFI_RESTORE rbp
 	addq $7*8, %rsp
 	CFI_ADJUST_CFA_OFFSET -7*8
+	pax_force_retaddr 0, 1
 	ret
 	CFI_RESTORE_STATE
 
diff --git a/arch/x86/lib/csum-wrappers_64.c b/arch/x86/lib/csum-wrappers_64.c
index 25b7ae8..169fafc 100644
--- a/arch/x86/lib/csum-wrappers_64.c
+++ b/arch/x86/lib/csum-wrappers_64.c
@@ -52,7 +52,7 @@ csum_partial_copy_from_user(const void __user *src, void *dst,
 			len -= 2;
 		}
 	}
-	isum = csum_partial_copy_generic((__force const void *)src,
+	isum = csum_partial_copy_generic((const void __force_kernel *)____m(src),
 				dst, len, isum, errp, NULL);
 	if (unlikely(*errp))
 		goto out_err;
@@ -105,7 +105,7 @@ csum_partial_copy_to_user(const void *src, void __user *dst,
 	}
 
 	*errp = 0;
-	return csum_partial_copy_generic(src, (void __force *)dst,
+	return csum_partial_copy_generic(src, (void __force_kernel *)____m(dst),
 					 len, isum, NULL, errp);
 }
 EXPORT_SYMBOL(csum_partial_copy_to_user);
diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
index a451235..79fb5cf 100644
--- a/arch/x86/lib/getuser.S
+++ b/arch/x86/lib/getuser.S
@@ -33,17 +33,40 @@
 #include <asm/thread_info.h>
 #include <asm/asm.h>
 #include <asm/smap.h>
+#include <asm/segment.h>
+#include <asm/pgtable.h>
+#include <asm/alternative-asm.h>
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define __copyuser_seg gs;
+#else
+#define __copyuser_seg
+#endif
 
 	.text
 ENTRY(__get_user_1)
 	CFI_STARTPROC
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
 	GET_THREAD_INFO(%_ASM_DX)
 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user
 	ASM_STAC
-1:	movzbl (%_ASM_AX),%edx
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_DX
+	cmp %_ASM_DX,%_ASM_AX
+	jae 1234f
+	add %_ASM_DX,%_ASM_AX
+1234:
+#endif
+
+#endif
+
+1:	__copyuser_seg movzbl (%_ASM_AX),%edx
 	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(__get_user_1)
@@ -51,14 +74,28 @@ ENDPROC(__get_user_1)
 ENTRY(__get_user_2)
 	CFI_STARTPROC
 	add $1,%_ASM_AX
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
 	jc bad_get_user
 	GET_THREAD_INFO(%_ASM_DX)
 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user
 	ASM_STAC
-2:	movzwl -1(%_ASM_AX),%edx
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_DX
+	cmp %_ASM_DX,%_ASM_AX
+	jae 1234f
+	add %_ASM_DX,%_ASM_AX
+1234:
+#endif
+
+#endif
+
+2:	__copyuser_seg movzwl -1(%_ASM_AX),%edx
 	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(__get_user_2)
@@ -66,14 +103,28 @@ ENDPROC(__get_user_2)
 ENTRY(__get_user_4)
 	CFI_STARTPROC
 	add $3,%_ASM_AX
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
 	jc bad_get_user
 	GET_THREAD_INFO(%_ASM_DX)
 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user
 	ASM_STAC
-3:	movl -3(%_ASM_AX),%edx
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_DX
+	cmp %_ASM_DX,%_ASM_AX
+	jae 1234f
+	add %_ASM_DX,%_ASM_AX
+1234:
+#endif
+
+#endif
+
+3:	__copyuser_seg movl -3(%_ASM_AX),%edx
 	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(__get_user_4)
@@ -86,10 +137,20 @@ ENTRY(__get_user_8)
 	GET_THREAD_INFO(%_ASM_DX)
 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	mov pax_user_shadow_base,%_ASM_DX
+	cmp %_ASM_DX,%_ASM_AX
+	jae 1234f
+	add %_ASM_DX,%_ASM_AX
+1234:
+#endif
+
 	ASM_STAC
 4:	movq -7(%_ASM_AX),%rdx
 	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 #else
 	add $7,%_ASM_AX
@@ -102,6 +163,7 @@ ENTRY(__get_user_8)
 5:	movl -3(%_ASM_AX),%ecx
 	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 #endif
 	CFI_ENDPROC
@@ -113,6 +175,7 @@ bad_get_user:
 	xor %edx,%edx
 	mov $(-EFAULT),%_ASM_AX
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 END(bad_get_user)
@@ -124,6 +187,7 @@ bad_get_user_8:
 	xor %ecx,%ecx
 	mov $(-EFAULT),%_ASM_AX
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 END(bad_get_user_8)
diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
index 54fcffe..7be149e 100644
--- a/arch/x86/lib/insn.c
+++ b/arch/x86/lib/insn.c
@@ -20,8 +20,10 @@
 
 #ifdef __KERNEL__
 #include <linux/string.h>
+#include <asm/pgtable_types.h>
 #else
 #include <string.h>
+#define ktla_ktva(addr) addr
 #endif
 #include <asm/inat.h>
 #include <asm/insn.h>
@@ -53,8 +55,8 @@
 void insn_init(struct insn *insn, const void *kaddr, int x86_64)
 {
 	memset(insn, 0, sizeof(*insn));
-	insn->kaddr = kaddr;
-	insn->next_byte = kaddr;
+	insn->kaddr = ktla_ktva(kaddr);
+	insn->next_byte = ktla_ktva(kaddr);
 	insn->x86_64 = x86_64 ? 1 : 0;
 	insn->opnd_bytes = 4;
 	if (x86_64)
diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S
index 05a95e7..326f2fa 100644
--- a/arch/x86/lib/iomap_copy_64.S
+++ b/arch/x86/lib/iomap_copy_64.S
@@ -17,6 +17,7 @@
 
 #include <linux/linkage.h>
 #include <asm/dwarf2.h>
+#include <asm/alternative-asm.h>
 
 /*
  * override generic version in lib/iomap_copy.c
@@ -25,6 +26,7 @@ ENTRY(__iowrite32_copy)
 	CFI_STARTPROC
 	movl %edx,%ecx
 	rep movsd
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(__iowrite32_copy)
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 1c273be..da9cc0e 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -33,6 +33,7 @@
 	rep movsq
 	movl %edx, %ecx
 	rep movsb
+	pax_force_retaddr
 	ret
 .Lmemcpy_e:
 	.previous
@@ -49,6 +50,7 @@
 	movq %rdi, %rax
 	movq %rdx, %rcx
 	rep movsb
+	pax_force_retaddr
 	ret
 .Lmemcpy_e_e:
 	.previous
@@ -76,13 +78,13 @@ ENTRY(memcpy)
 	 */
 	movq 0*8(%rsi),	%r8
 	movq 1*8(%rsi),	%r9
-	movq 2*8(%rsi),	%r10
+	movq 2*8(%rsi),	%rcx
 	movq 3*8(%rsi),	%r11
 	leaq 4*8(%rsi),	%rsi
 
 	movq %r8,	0*8(%rdi)
 	movq %r9,	1*8(%rdi)
-	movq %r10,	2*8(%rdi)
+	movq %rcx,	2*8(%rdi)
 	movq %r11,	3*8(%rdi)
 	leaq 4*8(%rdi),	%rdi
 	jae  .Lcopy_forward_loop
@@ -105,12 +107,12 @@ ENTRY(memcpy)
 	subq $0x20,	%rdx
 	movq -1*8(%rsi),	%r8
 	movq -2*8(%rsi),	%r9
-	movq -3*8(%rsi),	%r10
+	movq -3*8(%rsi),	%rcx
 	movq -4*8(%rsi),	%r11
 	leaq -4*8(%rsi),	%rsi
 	movq %r8,		-1*8(%rdi)
 	movq %r9,		-2*8(%rdi)
-	movq %r10,		-3*8(%rdi)
+	movq %rcx,		-3*8(%rdi)
 	movq %r11,		-4*8(%rdi)
 	leaq -4*8(%rdi),	%rdi
 	jae  .Lcopy_backward_loop
@@ -130,12 +132,13 @@ ENTRY(memcpy)
 	 */
 	movq 0*8(%rsi), %r8
 	movq 1*8(%rsi),	%r9
-	movq -2*8(%rsi, %rdx),	%r10
+	movq -2*8(%rsi, %rdx),	%rcx
 	movq -1*8(%rsi, %rdx),	%r11
 	movq %r8,	0*8(%rdi)
 	movq %r9,	1*8(%rdi)
-	movq %r10,	-2*8(%rdi, %rdx)
+	movq %rcx,	-2*8(%rdi, %rdx)
 	movq %r11,	-1*8(%rdi, %rdx)
+	pax_force_retaddr
 	retq
 	.p2align 4
 .Lless_16bytes:
@@ -148,6 +151,7 @@ ENTRY(memcpy)
 	movq -1*8(%rsi, %rdx),	%r9
 	movq %r8,	0*8(%rdi)
 	movq %r9,	-1*8(%rdi, %rdx)
+	pax_force_retaddr
 	retq
 	.p2align 4
 .Lless_8bytes:
@@ -161,6 +165,7 @@ ENTRY(memcpy)
 	movl -4(%rsi, %rdx), %r8d
 	movl %ecx, (%rdi)
 	movl %r8d, -4(%rdi, %rdx)
+	pax_force_retaddr
 	retq
 	.p2align 4
 .Lless_3bytes:
@@ -179,6 +184,7 @@ ENTRY(memcpy)
 	movb %cl, (%rdi)
 
 .Lend:
+	pax_force_retaddr
 	retq
 	CFI_ENDPROC
 ENDPROC(memcpy)
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index ee16461..c39c199 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -61,13 +61,13 @@ ENTRY(memmove)
 5:
 	sub $0x20, %rdx
 	movq 0*8(%rsi), %r11
-	movq 1*8(%rsi), %r10
+	movq 1*8(%rsi), %rcx
 	movq 2*8(%rsi), %r9
 	movq 3*8(%rsi), %r8
 	leaq 4*8(%rsi), %rsi
 
 	movq %r11, 0*8(%rdi)
-	movq %r10, 1*8(%rdi)
+	movq %rcx, 1*8(%rdi)
 	movq %r9, 2*8(%rdi)
 	movq %r8, 3*8(%rdi)
 	leaq 4*8(%rdi), %rdi
@@ -81,10 +81,10 @@ ENTRY(memmove)
 4:
 	movq %rdx, %rcx
 	movq -8(%rsi, %rdx), %r11
-	lea -8(%rdi, %rdx), %r10
+	lea -8(%rdi, %rdx), %r9
 	shrq $3, %rcx
 	rep movsq
-	movq %r11, (%r10)
+	movq %r11, (%r9)
 	jmp 13f
 .Lmemmove_end_forward:
 
@@ -95,14 +95,14 @@ ENTRY(memmove)
 7:
 	movq %rdx, %rcx
 	movq (%rsi), %r11
-	movq %rdi, %r10
+	movq %rdi, %r9
 	leaq -8(%rsi, %rdx), %rsi
 	leaq -8(%rdi, %rdx), %rdi
 	shrq $3, %rcx
 	std
 	rep movsq
 	cld
-	movq %r11, (%r10)
+	movq %r11, (%r9)
 	jmp 13f
 
 	/*
@@ -127,13 +127,13 @@ ENTRY(memmove)
 8:
 	subq $0x20, %rdx
 	movq -1*8(%rsi), %r11
-	movq -2*8(%rsi), %r10
+	movq -2*8(%rsi), %rcx
 	movq -3*8(%rsi), %r9
 	movq -4*8(%rsi), %r8
 	leaq -4*8(%rsi), %rsi
 
 	movq %r11, -1*8(%rdi)
-	movq %r10, -2*8(%rdi)
+	movq %rcx, -2*8(%rdi)
 	movq %r9, -3*8(%rdi)
 	movq %r8, -4*8(%rdi)
 	leaq -4*8(%rdi), %rdi
@@ -151,11 +151,11 @@ ENTRY(memmove)
 	 * Move data from 16 bytes to 31 bytes.
 	 */
 	movq 0*8(%rsi), %r11
-	movq 1*8(%rsi), %r10
+	movq 1*8(%rsi), %rcx
 	movq -2*8(%rsi, %rdx), %r9
 	movq -1*8(%rsi, %rdx), %r8
 	movq %r11, 0*8(%rdi)
-	movq %r10, 1*8(%rdi)
+	movq %rcx, 1*8(%rdi)
 	movq %r9, -2*8(%rdi, %rdx)
 	movq %r8, -1*8(%rdi, %rdx)
 	jmp 13f
@@ -167,9 +167,9 @@ ENTRY(memmove)
 	 * Move data from 8 bytes to 15 bytes.
 	 */
 	movq 0*8(%rsi), %r11
-	movq -1*8(%rsi, %rdx), %r10
+	movq -1*8(%rsi, %rdx), %r9
 	movq %r11, 0*8(%rdi)
-	movq %r10, -1*8(%rdi, %rdx)
+	movq %r9, -1*8(%rdi, %rdx)
 	jmp 13f
 10:
 	cmpq $4, %rdx
@@ -178,9 +178,9 @@ ENTRY(memmove)
 	 * Move data from 4 bytes to 7 bytes.
 	 */
 	movl (%rsi), %r11d
-	movl -4(%rsi, %rdx), %r10d
+	movl -4(%rsi, %rdx), %r9d
 	movl %r11d, (%rdi)
-	movl %r10d, -4(%rdi, %rdx)
+	movl %r9d, -4(%rdi, %rdx)
 	jmp 13f
 11:
 	cmp $2, %rdx
@@ -189,9 +189,9 @@ ENTRY(memmove)
 	 * Move data from 2 bytes to 3 bytes.
 	 */
 	movw (%rsi), %r11w
-	movw -2(%rsi, %rdx), %r10w
+	movw -2(%rsi, %rdx), %r9w
 	movw %r11w, (%rdi)
-	movw %r10w, -2(%rdi, %rdx)
+	movw %r9w, -2(%rdi, %rdx)
 	jmp 13f
 12:
 	cmp $1, %rdx
@@ -202,6 +202,7 @@ ENTRY(memmove)
 	movb (%rsi), %r11b
 	movb %r11b, (%rdi)
 13:
+	pax_force_retaddr
 	retq
 	CFI_ENDPROC
 
@@ -210,6 +211,7 @@ ENTRY(memmove)
 	/* Forward moving data. */
 	movq %rdx, %rcx
 	rep movsb
+	pax_force_retaddr
 	retq
 .Lmemmove_end_forward_efs:
 	.previous
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 2dcb380..963660a 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -30,6 +30,7 @@
 	movl %edx,%ecx
 	rep stosb
 	movq %r9,%rax
+	pax_force_retaddr
 	ret
 .Lmemset_e:
 	.previous
@@ -52,6 +53,7 @@
 	movq %rdx,%rcx
 	rep stosb
 	movq %r9,%rax
+	pax_force_retaddr
 	ret
 .Lmemset_e_e:
 	.previous
@@ -59,7 +61,7 @@
 ENTRY(memset)
 ENTRY(__memset)
 	CFI_STARTPROC
-	movq %rdi,%r10
+	movq %rdi,%r11
 
 	/* expand byte value  */
 	movzbl %sil,%ecx
@@ -117,7 +119,8 @@ ENTRY(__memset)
 	jnz     .Lloop_1
 
 .Lende:
-	movq	%r10,%rax
+	movq	%r11,%rax
+	pax_force_retaddr
 	ret
 
 	CFI_RESTORE_STATE
diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c
index c9f2d9b..e7fd2c0 100644
--- a/arch/x86/lib/mmx_32.c
+++ b/arch/x86/lib/mmx_32.c
@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
 {
 	void *p;
 	int i;
+	unsigned long cr0;
 
 	if (unlikely(in_interrupt()))
 		return __memcpy(to, from, len);
@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
 	kernel_fpu_begin();
 
 	__asm__ __volatile__ (
-		"1: prefetch (%0)\n"		/* This set is 28 bytes */
-		"   prefetch 64(%0)\n"
-		"   prefetch 128(%0)\n"
-		"   prefetch 192(%0)\n"
-		"   prefetch 256(%0)\n"
+		"1: prefetch (%1)\n"		/* This set is 28 bytes */
+		"   prefetch 64(%1)\n"
+		"   prefetch 128(%1)\n"
+		"   prefetch 192(%1)\n"
+		"   prefetch 256(%1)\n"
 		"2:  \n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+		"3:  \n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
 			_ASM_EXTABLE(1b, 3b)
-			: : "r" (from));
+			: "=&r" (cr0) : "r" (from) : "ax");
 
 	for ( ; i > 5; i--) {
 		__asm__ __volatile__ (
-		"1:  prefetch 320(%0)\n"
-		"2:  movq (%0), %%mm0\n"
-		"  movq 8(%0), %%mm1\n"
-		"  movq 16(%0), %%mm2\n"
-		"  movq 24(%0), %%mm3\n"
-		"  movq %%mm0, (%1)\n"
-		"  movq %%mm1, 8(%1)\n"
-		"  movq %%mm2, 16(%1)\n"
-		"  movq %%mm3, 24(%1)\n"
-		"  movq 32(%0), %%mm0\n"
-		"  movq 40(%0), %%mm1\n"
-		"  movq 48(%0), %%mm2\n"
-		"  movq 56(%0), %%mm3\n"
-		"  movq %%mm0, 32(%1)\n"
-		"  movq %%mm1, 40(%1)\n"
-		"  movq %%mm2, 48(%1)\n"
-		"  movq %%mm3, 56(%1)\n"
+		"1:  prefetch 320(%1)\n"
+		"2:  movq (%1), %%mm0\n"
+		"  movq 8(%1), %%mm1\n"
+		"  movq 16(%1), %%mm2\n"
+		"  movq 24(%1), %%mm3\n"
+		"  movq %%mm0, (%2)\n"
+		"  movq %%mm1, 8(%2)\n"
+		"  movq %%mm2, 16(%2)\n"
+		"  movq %%mm3, 24(%2)\n"
+		"  movq 32(%1), %%mm0\n"
+		"  movq 40(%1), %%mm1\n"
+		"  movq 48(%1), %%mm2\n"
+		"  movq 56(%1), %%mm3\n"
+		"  movq %%mm0, 32(%2)\n"
+		"  movq %%mm1, 40(%2)\n"
+		"  movq %%mm2, 48(%2)\n"
+		"  movq %%mm3, 56(%2)\n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+		"3:\n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
 			_ASM_EXTABLE(1b, 3b)
-			: : "r" (from), "r" (to) : "memory");
+			: "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
 
 		from += 64;
 		to += 64;
@@ -158,6 +187,7 @@ static void fast_clear_page(void *page)
 static void fast_copy_page(void *to, void *from)
 {
 	int i;
+	unsigned long cr0;
 
 	kernel_fpu_begin();
 
@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, void *from)
 	 * but that is for later. -AV
 	 */
 	__asm__ __volatile__(
-		"1: prefetch (%0)\n"
-		"   prefetch 64(%0)\n"
-		"   prefetch 128(%0)\n"
-		"   prefetch 192(%0)\n"
-		"   prefetch 256(%0)\n"
+		"1: prefetch (%1)\n"
+		"   prefetch 64(%1)\n"
+		"   prefetch 128(%1)\n"
+		"   prefetch 192(%1)\n"
+		"   prefetch 256(%1)\n"
 		"2:  \n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+		"3:  \n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
-			_ASM_EXTABLE(1b, 3b) : : "r" (from));
+			_ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
 
 	for (i = 0; i < (4096-320)/64; i++) {
 		__asm__ __volatile__ (
-		"1: prefetch 320(%0)\n"
-		"2: movq (%0), %%mm0\n"
-		"   movntq %%mm0, (%1)\n"
-		"   movq 8(%0), %%mm1\n"
-		"   movntq %%mm1, 8(%1)\n"
-		"   movq 16(%0), %%mm2\n"
-		"   movntq %%mm2, 16(%1)\n"
-		"   movq 24(%0), %%mm3\n"
-		"   movntq %%mm3, 24(%1)\n"
-		"   movq 32(%0), %%mm4\n"
-		"   movntq %%mm4, 32(%1)\n"
-		"   movq 40(%0), %%mm5\n"
-		"   movntq %%mm5, 40(%1)\n"
-		"   movq 48(%0), %%mm6\n"
-		"   movntq %%mm6, 48(%1)\n"
-		"   movq 56(%0), %%mm7\n"
-		"   movntq %%mm7, 56(%1)\n"
+		"1: prefetch 320(%1)\n"
+		"2: movq (%1), %%mm0\n"
+		"   movntq %%mm0, (%2)\n"
+		"   movq 8(%1), %%mm1\n"
+		"   movntq %%mm1, 8(%2)\n"
+		"   movq 16(%1), %%mm2\n"
+		"   movntq %%mm2, 16(%2)\n"
+		"   movq 24(%1), %%mm3\n"
+		"   movntq %%mm3, 24(%2)\n"
+		"   movq 32(%1), %%mm4\n"
+		"   movntq %%mm4, 32(%2)\n"
+		"   movq 40(%1), %%mm5\n"
+		"   movntq %%mm5, 40(%2)\n"
+		"   movq 48(%1), %%mm6\n"
+		"   movntq %%mm6, 48(%2)\n"
+		"   movq 56(%1), %%mm7\n"
+		"   movntq %%mm7, 56(%2)\n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+		"3:\n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
-		_ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory");
+		_ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
 
 		from += 64;
 		to += 64;
@@ -280,47 +338,76 @@ static void fast_clear_page(void *page)
 static void fast_copy_page(void *to, void *from)
 {
 	int i;
+	unsigned long cr0;
 
 	kernel_fpu_begin();
 
 	__asm__ __volatile__ (
-		"1: prefetch (%0)\n"
-		"   prefetch 64(%0)\n"
-		"   prefetch 128(%0)\n"
-		"   prefetch 192(%0)\n"
-		"   prefetch 256(%0)\n"
+		"1: prefetch (%1)\n"
+		"   prefetch 64(%1)\n"
+		"   prefetch 128(%1)\n"
+		"   prefetch 192(%1)\n"
+		"   prefetch 256(%1)\n"
 		"2:  \n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+		"3:  \n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
-			_ASM_EXTABLE(1b, 3b) : : "r" (from));
+			_ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
 
 	for (i = 0; i < 4096/64; i++) {
 		__asm__ __volatile__ (
-		"1: prefetch 320(%0)\n"
-		"2: movq (%0), %%mm0\n"
-		"   movq 8(%0), %%mm1\n"
-		"   movq 16(%0), %%mm2\n"
-		"   movq 24(%0), %%mm3\n"
-		"   movq %%mm0, (%1)\n"
-		"   movq %%mm1, 8(%1)\n"
-		"   movq %%mm2, 16(%1)\n"
-		"   movq %%mm3, 24(%1)\n"
-		"   movq 32(%0), %%mm0\n"
-		"   movq 40(%0), %%mm1\n"
-		"   movq 48(%0), %%mm2\n"
-		"   movq 56(%0), %%mm3\n"
-		"   movq %%mm0, 32(%1)\n"
-		"   movq %%mm1, 40(%1)\n"
-		"   movq %%mm2, 48(%1)\n"
-		"   movq %%mm3, 56(%1)\n"
+		"1: prefetch 320(%1)\n"
+		"2: movq (%1), %%mm0\n"
+		"   movq 8(%1), %%mm1\n"
+		"   movq 16(%1), %%mm2\n"
+		"   movq 24(%1), %%mm3\n"
+		"   movq %%mm0, (%2)\n"
+		"   movq %%mm1, 8(%2)\n"
+		"   movq %%mm2, 16(%2)\n"
+		"   movq %%mm3, 24(%2)\n"
+		"   movq 32(%1), %%mm0\n"
+		"   movq 40(%1), %%mm1\n"
+		"   movq 48(%1), %%mm2\n"
+		"   movq 56(%1), %%mm3\n"
+		"   movq %%mm0, 32(%2)\n"
+		"   movq %%mm1, 40(%2)\n"
+		"   movq %%mm2, 48(%2)\n"
+		"   movq %%mm3, 56(%2)\n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+		"3:\n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
 			_ASM_EXTABLE(1b, 3b)
-			: : "r" (from), "r" (to) : "memory");
+			: "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
 
 		from += 64;
 		to += 64;
diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
index f6d13ee..aca5f0b 100644
--- a/arch/x86/lib/msr-reg.S
+++ b/arch/x86/lib/msr-reg.S
@@ -3,6 +3,7 @@
 #include <asm/dwarf2.h>
 #include <asm/asm.h>
 #include <asm/msr.h>
+#include <asm/alternative-asm.h>
 
 #ifdef CONFIG_X86_64
 /*
@@ -16,7 +17,7 @@ ENTRY(\op\()_safe_regs)
 	CFI_STARTPROC
 	pushq_cfi %rbx
 	pushq_cfi %rbp
-	movq	%rdi, %r10	/* Save pointer */
+	movq	%rdi, %r9	/* Save pointer */
 	xorl	%r11d, %r11d	/* Return value */
 	movl    (%rdi), %eax
 	movl    4(%rdi), %ecx
@@ -27,16 +28,17 @@ ENTRY(\op\()_safe_regs)
 	movl    28(%rdi), %edi
 	CFI_REMEMBER_STATE
 1:	\op
-2:	movl    %eax, (%r10)
+2:	movl    %eax, (%r9)
 	movl	%r11d, %eax	/* Return value */
-	movl    %ecx, 4(%r10)
-	movl    %edx, 8(%r10)
-	movl    %ebx, 12(%r10)
-	movl    %ebp, 20(%r10)
-	movl    %esi, 24(%r10)
-	movl    %edi, 28(%r10)
+	movl    %ecx, 4(%r9)
+	movl    %edx, 8(%r9)
+	movl    %ebx, 12(%r9)
+	movl    %ebp, 20(%r9)
+	movl    %esi, 24(%r9)
+	movl    %edi, 28(%r9)
 	popq_cfi %rbp
 	popq_cfi %rbx
+	pax_force_retaddr
 	ret
 3:
 	CFI_RESTORE_STATE
diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
index fc6ba17..d4d989d 100644
--- a/arch/x86/lib/putuser.S
+++ b/arch/x86/lib/putuser.S
@@ -16,7 +16,9 @@
 #include <asm/errno.h>
 #include <asm/asm.h>
 #include <asm/smap.h>
-
+#include <asm/segment.h>
+#include <asm/pgtable.h>
+#include <asm/alternative-asm.h>
 
 /*
  * __put_user_X
@@ -30,57 +32,125 @@
  * as they get called from within inline assembly.
  */
 
-#define ENTER	CFI_STARTPROC ; \
-		GET_THREAD_INFO(%_ASM_BX)
-#define EXIT	ASM_CLAC ;	\
-		ret ;		\
+#define ENTER	CFI_STARTPROC
+#define EXIT	ASM_CLAC ;		\
+		pax_force_retaddr ;	\
+		ret ;			\
 		CFI_ENDPROC
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define _DEST %_ASM_CX,%_ASM_BX
+#else
+#define _DEST %_ASM_CX
+#endif
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define __copyuser_seg gs;
+#else
+#define __copyuser_seg
+#endif
+
 .text
 ENTRY(__put_user_1)
 	ENTER
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+	GET_THREAD_INFO(%_ASM_BX)
 	cmp TI_addr_limit(%_ASM_BX),%_ASM_CX
 	jae bad_put_user
 	ASM_STAC
-1:	movb %al,(%_ASM_CX)
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_BX
+	cmp %_ASM_BX,%_ASM_CX
+	jb 1234f
+	xor %ebx,%ebx
+1234:
+#endif
+
+#endif
+
+1:	__copyuser_seg movb %al,(_DEST)
 	xor %eax,%eax
 	EXIT
 ENDPROC(__put_user_1)
 
 ENTRY(__put_user_2)
 	ENTER
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+	GET_THREAD_INFO(%_ASM_BX)
 	mov TI_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $1,%_ASM_BX
 	cmp %_ASM_BX,%_ASM_CX
 	jae bad_put_user
 	ASM_STAC
-2:	movw %ax,(%_ASM_CX)
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_BX
+	cmp %_ASM_BX,%_ASM_CX
+	jb 1234f
+	xor %ebx,%ebx
+1234:
+#endif
+
+#endif
+
+2:	__copyuser_seg movw %ax,(_DEST)
 	xor %eax,%eax
 	EXIT
 ENDPROC(__put_user_2)
 
 ENTRY(__put_user_4)
 	ENTER
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+	GET_THREAD_INFO(%_ASM_BX)
 	mov TI_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $3,%_ASM_BX
 	cmp %_ASM_BX,%_ASM_CX
 	jae bad_put_user
 	ASM_STAC
-3:	movl %eax,(%_ASM_CX)
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_BX
+	cmp %_ASM_BX,%_ASM_CX
+	jb 1234f
+	xor %ebx,%ebx
+1234:
+#endif
+
+#endif
+
+3:	__copyuser_seg movl %eax,(_DEST)
 	xor %eax,%eax
 	EXIT
 ENDPROC(__put_user_4)
 
 ENTRY(__put_user_8)
 	ENTER
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+	GET_THREAD_INFO(%_ASM_BX)
 	mov TI_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $7,%_ASM_BX
 	cmp %_ASM_BX,%_ASM_CX
 	jae bad_put_user
 	ASM_STAC
-4:	mov %_ASM_AX,(%_ASM_CX)
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_BX
+	cmp %_ASM_BX,%_ASM_CX
+	jb 1234f
+	xor %ebx,%ebx
+1234:
+#endif
+
+#endif
+
+4:	__copyuser_seg mov %_ASM_AX,(_DEST)
 #ifdef CONFIG_X86_32
-5:	movl %edx,4(%_ASM_CX)
+5:	__copyuser_seg movl %edx,4(_DEST)
 #endif
 	xor %eax,%eax
 	EXIT
diff --git a/arch/x86/lib/rwlock.S b/arch/x86/lib/rwlock.S
index 1cad221..de671ee 100644
--- a/arch/x86/lib/rwlock.S
+++ b/arch/x86/lib/rwlock.S
@@ -16,13 +16,34 @@ ENTRY(__write_lock_failed)
 	FRAME
 0:	LOCK_PREFIX
 	WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 1234f
+	LOCK_PREFIX
+	WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr)
+	int $4
+1234:
+	_ASM_EXTABLE(1234b, 1234b)
+#endif
+
 1:	rep; nop
 	cmpl	$WRITE_LOCK_CMP, (%__lock_ptr)
 	jne	1b
 	LOCK_PREFIX
 	WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 1234f
+	LOCK_PREFIX
+	WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr)
+	int $4
+1234:
+	_ASM_EXTABLE(1234b, 1234b)
+#endif
+
 	jnz	0b
 	ENDFRAME
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 END(__write_lock_failed)
@@ -32,13 +53,34 @@ ENTRY(__read_lock_failed)
 	FRAME
 0:	LOCK_PREFIX
 	READ_LOCK_SIZE(inc) (%__lock_ptr)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 1234f
+	LOCK_PREFIX
+	READ_LOCK_SIZE(dec) (%__lock_ptr)
+	int $4
+1234:
+	_ASM_EXTABLE(1234b, 1234b)
+#endif
+
 1:	rep; nop
 	READ_LOCK_SIZE(cmp) $1, (%__lock_ptr)
 	js	1b
 	LOCK_PREFIX
 	READ_LOCK_SIZE(dec) (%__lock_ptr)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 1234f
+	LOCK_PREFIX
+	READ_LOCK_SIZE(inc) (%__lock_ptr)
+	int $4
+1234:
+	_ASM_EXTABLE(1234b, 1234b)
+#endif
+
 	js	0b
 	ENDFRAME
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 END(__read_lock_failed)
diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S
index 5dff5f0..cadebf4 100644
--- a/arch/x86/lib/rwsem.S
+++ b/arch/x86/lib/rwsem.S
@@ -94,6 +94,7 @@ ENTRY(call_rwsem_down_read_failed)
 	__ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
 	CFI_RESTORE __ASM_REG(dx)
 	restore_common_regs
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(call_rwsem_down_read_failed)
@@ -104,6 +105,7 @@ ENTRY(call_rwsem_down_write_failed)
 	movq %rax,%rdi
 	call rwsem_down_write_failed
 	restore_common_regs
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(call_rwsem_down_write_failed)
@@ -117,7 +119,8 @@ ENTRY(call_rwsem_wake)
 	movq %rax,%rdi
 	call rwsem_wake
 	restore_common_regs
-1:	ret
+1:	pax_force_retaddr
+	ret
 	CFI_ENDPROC
 ENDPROC(call_rwsem_wake)
 
@@ -131,6 +134,7 @@ ENTRY(call_rwsem_downgrade_wake)
 	__ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
 	CFI_RESTORE __ASM_REG(dx)
 	restore_common_regs
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
 ENDPROC(call_rwsem_downgrade_wake)
diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S
index a63efd6..ccecad8 100644
--- a/arch/x86/lib/thunk_64.S
+++ b/arch/x86/lib/thunk_64.S
@@ -8,6 +8,7 @@
 #include <linux/linkage.h>
 #include <asm/dwarf2.h>
 #include <asm/calling.h>
+#include <asm/alternative-asm.h>
 
 	/* rdi:	arg1 ... normal C conventions. rax is saved/restored. */
 	.macro THUNK name, func, put_ret_addr_in_rdi=0
@@ -41,5 +42,6 @@
 	SAVE_ARGS
 restore:
 	RESTORE_ARGS
+	pax_force_retaddr
 	ret
 	CFI_ENDPROC
diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index f0312d7..9c39d63 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -42,11 +42,13 @@ do {									\
 	int __d0;							\
 	might_fault();							\
 	__asm__ __volatile__(						\
+		__COPYUSER_SET_ES					\
 		ASM_STAC "\n"						\
 		"0:	rep; stosl\n"					\
 		"	movl %2,%0\n"					\
 		"1:	rep; stosb\n"					\
 		"2: " ASM_CLAC "\n"					\
+		__COPYUSER_RESTORE_ES					\
 		".section .fixup,\"ax\"\n"				\
 		"3:	lea 0(%2,%0,4),%0\n"				\
 		"	jmp 2b\n"					\
@@ -98,7 +100,7 @@ EXPORT_SYMBOL(__clear_user);
 
 #ifdef CONFIG_X86_INTEL_USERCOPY
 static unsigned long
-__copy_user_intel(void __user *to, const void *from, unsigned long size)
+__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size)
 {
 	int d0, d1;
 	__asm__ __volatile__(
@@ -110,36 +112,36 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
 		       "       .align 2,0x90\n"
 		       "3:     movl 0(%4), %%eax\n"
 		       "4:     movl 4(%4), %%edx\n"
-		       "5:     movl %%eax, 0(%3)\n"
-		       "6:     movl %%edx, 4(%3)\n"
+		       "5:     "__copyuser_seg" movl %%eax, 0(%3)\n"
+		       "6:     "__copyuser_seg" movl %%edx, 4(%3)\n"
 		       "7:     movl 8(%4), %%eax\n"
 		       "8:     movl 12(%4),%%edx\n"
-		       "9:     movl %%eax, 8(%3)\n"
-		       "10:    movl %%edx, 12(%3)\n"
+		       "9:     "__copyuser_seg" movl %%eax, 8(%3)\n"
+		       "10:    "__copyuser_seg" movl %%edx, 12(%3)\n"
 		       "11:    movl 16(%4), %%eax\n"
 		       "12:    movl 20(%4), %%edx\n"
-		       "13:    movl %%eax, 16(%3)\n"
-		       "14:    movl %%edx, 20(%3)\n"
+		       "13:    "__copyuser_seg" movl %%eax, 16(%3)\n"
+		       "14:    "__copyuser_seg" movl %%edx, 20(%3)\n"
 		       "15:    movl 24(%4), %%eax\n"
 		       "16:    movl 28(%4), %%edx\n"
-		       "17:    movl %%eax, 24(%3)\n"
-		       "18:    movl %%edx, 28(%3)\n"
+		       "17:    "__copyuser_seg" movl %%eax, 24(%3)\n"
+		       "18:    "__copyuser_seg" movl %%edx, 28(%3)\n"
 		       "19:    movl 32(%4), %%eax\n"
 		       "20:    movl 36(%4), %%edx\n"
-		       "21:    movl %%eax, 32(%3)\n"
-		       "22:    movl %%edx, 36(%3)\n"
+		       "21:    "__copyuser_seg" movl %%eax, 32(%3)\n"
+		       "22:    "__copyuser_seg" movl %%edx, 36(%3)\n"
 		       "23:    movl 40(%4), %%eax\n"
 		       "24:    movl 44(%4), %%edx\n"
-		       "25:    movl %%eax, 40(%3)\n"
-		       "26:    movl %%edx, 44(%3)\n"
+		       "25:    "__copyuser_seg" movl %%eax, 40(%3)\n"
+		       "26:    "__copyuser_seg" movl %%edx, 44(%3)\n"
 		       "27:    movl 48(%4), %%eax\n"
 		       "28:    movl 52(%4), %%edx\n"
-		       "29:    movl %%eax, 48(%3)\n"
-		       "30:    movl %%edx, 52(%3)\n"
+		       "29:    "__copyuser_seg" movl %%eax, 48(%3)\n"
+		       "30:    "__copyuser_seg" movl %%edx, 52(%3)\n"
 		       "31:    movl 56(%4), %%eax\n"
 		       "32:    movl 60(%4), %%edx\n"
-		       "33:    movl %%eax, 56(%3)\n"
-		       "34:    movl %%edx, 60(%3)\n"
+		       "33:    "__copyuser_seg" movl %%eax, 56(%3)\n"
+		       "34:    "__copyuser_seg" movl %%edx, 60(%3)\n"
 		       "       addl $-64, %0\n"
 		       "       addl $64, %4\n"
 		       "       addl $64, %3\n"
@@ -149,10 +151,12 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
 		       "       shrl  $2, %0\n"
 		       "       andl  $3, %%eax\n"
 		       "       cld\n"
+		       __COPYUSER_SET_ES
 		       "99:    rep; movsl\n"
 		       "36:    movl %%eax, %0\n"
 		       "37:    rep; movsb\n"
 		       "100:\n"
+		       __COPYUSER_RESTORE_ES
 		       ".section .fixup,\"ax\"\n"
 		       "101:   lea 0(%%eax,%0,4),%0\n"
 		       "       jmp 100b\n"
@@ -202,46 +206,150 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
 }
 
 static unsigned long
+__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size)
+{
+	int d0, d1;
+	__asm__ __volatile__(
+		       "       .align 2,0x90\n"
+		       "1:     "__copyuser_seg" movl 32(%4), %%eax\n"
+		       "       cmpl $67, %0\n"
+		       "       jbe 3f\n"
+		       "2:     "__copyuser_seg" movl 64(%4), %%eax\n"
+		       "       .align 2,0x90\n"
+		       "3:     "__copyuser_seg" movl 0(%4), %%eax\n"
+		       "4:     "__copyuser_seg" movl 4(%4), %%edx\n"
+		       "5:     movl %%eax, 0(%3)\n"
+		       "6:     movl %%edx, 4(%3)\n"
+		       "7:     "__copyuser_seg" movl 8(%4), %%eax\n"
+		       "8:     "__copyuser_seg" movl 12(%4),%%edx\n"
+		       "9:     movl %%eax, 8(%3)\n"
+		       "10:    movl %%edx, 12(%3)\n"
+		       "11:    "__copyuser_seg" movl 16(%4), %%eax\n"
+		       "12:    "__copyuser_seg" movl 20(%4), %%edx\n"
+		       "13:    movl %%eax, 16(%3)\n"
+		       "14:    movl %%edx, 20(%3)\n"
+		       "15:    "__copyuser_seg" movl 24(%4), %%eax\n"
+		       "16:    "__copyuser_seg" movl 28(%4), %%edx\n"
+		       "17:    movl %%eax, 24(%3)\n"
+		       "18:    movl %%edx, 28(%3)\n"
+		       "19:    "__copyuser_seg" movl 32(%4), %%eax\n"
+		       "20:    "__copyuser_seg" movl 36(%4), %%edx\n"
+		       "21:    movl %%eax, 32(%3)\n"
+		       "22:    movl %%edx, 36(%3)\n"
+		       "23:    "__copyuser_seg" movl 40(%4), %%eax\n"
+		       "24:    "__copyuser_seg" movl 44(%4), %%edx\n"
+		       "25:    movl %%eax, 40(%3)\n"
+		       "26:    movl %%edx, 44(%3)\n"
+		       "27:    "__copyuser_seg" movl 48(%4), %%eax\n"
+		       "28:    "__copyuser_seg" movl 52(%4), %%edx\n"
+		       "29:    movl %%eax, 48(%3)\n"
+		       "30:    movl %%edx, 52(%3)\n"
+		       "31:    "__copyuser_seg" movl 56(%4), %%eax\n"
+		       "32:    "__copyuser_seg" movl 60(%4), %%edx\n"
+		       "33:    movl %%eax, 56(%3)\n"
+		       "34:    movl %%edx, 60(%3)\n"
+		       "       addl $-64, %0\n"
+		       "       addl $64, %4\n"
+		       "       addl $64, %3\n"
+		       "       cmpl $63, %0\n"
+		       "       ja  1b\n"
+		       "35:    movl  %0, %%eax\n"
+		       "       shrl  $2, %0\n"
+		       "       andl  $3, %%eax\n"
+		       "       cld\n"
+		       "99:    rep; "__copyuser_seg" movsl\n"
+		       "36:    movl %%eax, %0\n"
+		       "37:    rep; "__copyuser_seg" movsb\n"
+		       "100:\n"
+		       ".section .fixup,\"ax\"\n"
+		       "101:   lea 0(%%eax,%0,4),%0\n"
+		       "       jmp 100b\n"
+		       ".previous\n"
+		       _ASM_EXTABLE(1b,100b)
+		       _ASM_EXTABLE(2b,100b)
+		       _ASM_EXTABLE(3b,100b)
+		       _ASM_EXTABLE(4b,100b)
+		       _ASM_EXTABLE(5b,100b)
+		       _ASM_EXTABLE(6b,100b)
+		       _ASM_EXTABLE(7b,100b)
+		       _ASM_EXTABLE(8b,100b)
+		       _ASM_EXTABLE(9b,100b)
+		       _ASM_EXTABLE(10b,100b)
+		       _ASM_EXTABLE(11b,100b)
+		       _ASM_EXTABLE(12b,100b)
+		       _ASM_EXTABLE(13b,100b)
+		       _ASM_EXTABLE(14b,100b)
+		       _ASM_EXTABLE(15b,100b)
+		       _ASM_EXTABLE(16b,100b)
+		       _ASM_EXTABLE(17b,100b)
+		       _ASM_EXTABLE(18b,100b)
+		       _ASM_EXTABLE(19b,100b)
+		       _ASM_EXTABLE(20b,100b)
+		       _ASM_EXTABLE(21b,100b)
+		       _ASM_EXTABLE(22b,100b)
+		       _ASM_EXTABLE(23b,100b)
+		       _ASM_EXTABLE(24b,100b)
+		       _ASM_EXTABLE(25b,100b)
+		       _ASM_EXTABLE(26b,100b)
+		       _ASM_EXTABLE(27b,100b)
+		       _ASM_EXTABLE(28b,100b)
+		       _ASM_EXTABLE(29b,100b)
+		       _ASM_EXTABLE(30b,100b)
+		       _ASM_EXTABLE(31b,100b)
+		       _ASM_EXTABLE(32b,100b)
+		       _ASM_EXTABLE(33b,100b)
+		       _ASM_EXTABLE(34b,100b)
+		       _ASM_EXTABLE(35b,100b)
+		       _ASM_EXTABLE(36b,100b)
+		       _ASM_EXTABLE(37b,100b)
+		       _ASM_EXTABLE(99b,101b)
+		       : "=&c"(size), "=&D" (d0), "=&S" (d1)
+		       :  "1"(to), "2"(from), "0"(size)
+		       : "eax", "edx", "memory");
+	return size;
+}
+
+static unsigned long __size_overflow(3)
 __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
 {
 	int d0, d1;
 	__asm__ __volatile__(
 		       "        .align 2,0x90\n"
-		       "0:      movl 32(%4), %%eax\n"
+		       "0:      "__copyuser_seg" movl 32(%4), %%eax\n"
 		       "        cmpl $67, %0\n"
 		       "        jbe 2f\n"
-		       "1:      movl 64(%4), %%eax\n"
+		       "1:      "__copyuser_seg" movl 64(%4), %%eax\n"
 		       "        .align 2,0x90\n"
-		       "2:      movl 0(%4), %%eax\n"
-		       "21:     movl 4(%4), %%edx\n"
+		       "2:      "__copyuser_seg" movl 0(%4), %%eax\n"
+		       "21:     "__copyuser_seg" movl 4(%4), %%edx\n"
 		       "        movl %%eax, 0(%3)\n"
 		       "        movl %%edx, 4(%3)\n"
-		       "3:      movl 8(%4), %%eax\n"
-		       "31:     movl 12(%4),%%edx\n"
+		       "3:      "__copyuser_seg" movl 8(%4), %%eax\n"
+		       "31:     "__copyuser_seg" movl 12(%4),%%edx\n"
 		       "        movl %%eax, 8(%3)\n"
 		       "        movl %%edx, 12(%3)\n"
-		       "4:      movl 16(%4), %%eax\n"
-		       "41:     movl 20(%4), %%edx\n"
+		       "4:      "__copyuser_seg" movl 16(%4), %%eax\n"
+		       "41:     "__copyuser_seg" movl 20(%4), %%edx\n"
 		       "        movl %%eax, 16(%3)\n"
 		       "        movl %%edx, 20(%3)\n"
-		       "10:     movl 24(%4), %%eax\n"
-		       "51:     movl 28(%4), %%edx\n"
+		       "10:     "__copyuser_seg" movl 24(%4), %%eax\n"
+		       "51:     "__copyuser_seg" movl 28(%4), %%edx\n"
 		       "        movl %%eax, 24(%3)\n"
 		       "        movl %%edx, 28(%3)\n"
-		       "11:     movl 32(%4), %%eax\n"
-		       "61:     movl 36(%4), %%edx\n"
+		       "11:     "__copyuser_seg" movl 32(%4), %%eax\n"
+		       "61:     "__copyuser_seg" movl 36(%4), %%edx\n"
 		       "        movl %%eax, 32(%3)\n"
 		       "        movl %%edx, 36(%3)\n"
-		       "12:     movl 40(%4), %%eax\n"
-		       "71:     movl 44(%4), %%edx\n"
+		       "12:     "__copyuser_seg" movl 40(%4), %%eax\n"
+		       "71:     "__copyuser_seg" movl 44(%4), %%edx\n"
 		       "        movl %%eax, 40(%3)\n"
 		       "        movl %%edx, 44(%3)\n"
-		       "13:     movl 48(%4), %%eax\n"
-		       "81:     movl 52(%4), %%edx\n"
+		       "13:     "__copyuser_seg" movl 48(%4), %%eax\n"
+		       "81:     "__copyuser_seg" movl 52(%4), %%edx\n"
 		       "        movl %%eax, 48(%3)\n"
 		       "        movl %%edx, 52(%3)\n"
-		       "14:     movl 56(%4), %%eax\n"
-		       "91:     movl 60(%4), %%edx\n"
+		       "14:     "__copyuser_seg" movl 56(%4), %%eax\n"
+		       "91:     "__copyuser_seg" movl 60(%4), %%edx\n"
 		       "        movl %%eax, 56(%3)\n"
 		       "        movl %%edx, 60(%3)\n"
 		       "        addl $-64, %0\n"
@@ -253,9 +361,9 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
 		       "        shrl  $2, %0\n"
 		       "        andl $3, %%eax\n"
 		       "        cld\n"
-		       "6:      rep; movsl\n"
+		       "6:      rep; "__copyuser_seg" movsl\n"
 		       "        movl %%eax,%0\n"
-		       "7:      rep; movsb\n"
+		       "7:      rep; "__copyuser_seg" movsb\n"
 		       "8:\n"
 		       ".section .fixup,\"ax\"\n"
 		       "9:      lea 0(%%eax,%0,4),%0\n"
@@ -298,48 +406,48 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
  * hyoshiok@miraclelinux.com
  */
 
-static unsigned long __copy_user_zeroing_intel_nocache(void *to,
+static unsigned long __size_overflow(3) __copy_user_zeroing_intel_nocache(void *to,
 				const void __user *from, unsigned long size)
 {
 	int d0, d1;
 
 	__asm__ __volatile__(
 	       "        .align 2,0x90\n"
-	       "0:      movl 32(%4), %%eax\n"
+	       "0:      "__copyuser_seg" movl 32(%4), %%eax\n"
 	       "        cmpl $67, %0\n"
 	       "        jbe 2f\n"
-	       "1:      movl 64(%4), %%eax\n"
+	       "1:      "__copyuser_seg" movl 64(%4), %%eax\n"
 	       "        .align 2,0x90\n"
-	       "2:      movl 0(%4), %%eax\n"
-	       "21:     movl 4(%4), %%edx\n"
+	       "2:      "__copyuser_seg" movl 0(%4), %%eax\n"
+	       "21:     "__copyuser_seg" movl 4(%4), %%edx\n"
 	       "        movnti %%eax, 0(%3)\n"
 	       "        movnti %%edx, 4(%3)\n"
-	       "3:      movl 8(%4), %%eax\n"
-	       "31:     movl 12(%4),%%edx\n"
+	       "3:      "__copyuser_seg" movl 8(%4), %%eax\n"
+	       "31:     "__copyuser_seg" movl 12(%4),%%edx\n"
 	       "        movnti %%eax, 8(%3)\n"
 	       "        movnti %%edx, 12(%3)\n"
-	       "4:      movl 16(%4), %%eax\n"
-	       "41:     movl 20(%4), %%edx\n"
+	       "4:      "__copyuser_seg" movl 16(%4), %%eax\n"
+	       "41:     "__copyuser_seg" movl 20(%4), %%edx\n"
 	       "        movnti %%eax, 16(%3)\n"
 	       "        movnti %%edx, 20(%3)\n"
-	       "10:     movl 24(%4), %%eax\n"
-	       "51:     movl 28(%4), %%edx\n"
+	       "10:     "__copyuser_seg" movl 24(%4), %%eax\n"
+	       "51:     "__copyuser_seg" movl 28(%4), %%edx\n"
 	       "        movnti %%eax, 24(%3)\n"
 	       "        movnti %%edx, 28(%3)\n"
-	       "11:     movl 32(%4), %%eax\n"
-	       "61:     movl 36(%4), %%edx\n"
+	       "11:     "__copyuser_seg" movl 32(%4), %%eax\n"
+	       "61:     "__copyuser_seg" movl 36(%4), %%edx\n"
 	       "        movnti %%eax, 32(%3)\n"
 	       "        movnti %%edx, 36(%3)\n"
-	       "12:     movl 40(%4), %%eax\n"
-	       "71:     movl 44(%4), %%edx\n"
+	       "12:     "__copyuser_seg" movl 40(%4), %%eax\n"
+	       "71:     "__copyuser_seg" movl 44(%4), %%edx\n"
 	       "        movnti %%eax, 40(%3)\n"
 	       "        movnti %%edx, 44(%3)\n"
-	       "13:     movl 48(%4), %%eax\n"
-	       "81:     movl 52(%4), %%edx\n"
+	       "13:     "__copyuser_seg" movl 48(%4), %%eax\n"
+	       "81:     "__copyuser_seg" movl 52(%4), %%edx\n"
 	       "        movnti %%eax, 48(%3)\n"
 	       "        movnti %%edx, 52(%3)\n"
-	       "14:     movl 56(%4), %%eax\n"
-	       "91:     movl 60(%4), %%edx\n"
+	       "14:     "__copyuser_seg" movl 56(%4), %%eax\n"
+	       "91:     "__copyuser_seg" movl 60(%4), %%edx\n"
 	       "        movnti %%eax, 56(%3)\n"
 	       "        movnti %%edx, 60(%3)\n"
 	       "        addl $-64, %0\n"
@@ -352,9 +460,9 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
 	       "        shrl  $2, %0\n"
 	       "        andl $3, %%eax\n"
 	       "        cld\n"
-	       "6:      rep; movsl\n"
+	       "6:      rep; "__copyuser_seg" movsl\n"
 	       "        movl %%eax,%0\n"
-	       "7:      rep; movsb\n"
+	       "7:      rep; "__copyuser_seg" movsb\n"
 	       "8:\n"
 	       ".section .fixup,\"ax\"\n"
 	       "9:      lea 0(%%eax,%0,4),%0\n"
@@ -392,48 +500,48 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
 	return size;
 }
 
-static unsigned long __copy_user_intel_nocache(void *to,
+static unsigned long __size_overflow(3) __copy_user_intel_nocache(void *to,
 				const void __user *from, unsigned long size)
 {
 	int d0, d1;
 
 	__asm__ __volatile__(
 	       "        .align 2,0x90\n"
-	       "0:      movl 32(%4), %%eax\n"
+	       "0:      "__copyuser_seg" movl 32(%4), %%eax\n"
 	       "        cmpl $67, %0\n"
 	       "        jbe 2f\n"
-	       "1:      movl 64(%4), %%eax\n"
+	       "1:      "__copyuser_seg" movl 64(%4), %%eax\n"
 	       "        .align 2,0x90\n"
-	       "2:      movl 0(%4), %%eax\n"
-	       "21:     movl 4(%4), %%edx\n"
+	       "2:      "__copyuser_seg" movl 0(%4), %%eax\n"
+	       "21:     "__copyuser_seg" movl 4(%4), %%edx\n"
 	       "        movnti %%eax, 0(%3)\n"
 	       "        movnti %%edx, 4(%3)\n"
-	       "3:      movl 8(%4), %%eax\n"
-	       "31:     movl 12(%4),%%edx\n"
+	       "3:      "__copyuser_seg" movl 8(%4), %%eax\n"
+	       "31:     "__copyuser_seg" movl 12(%4),%%edx\n"
 	       "        movnti %%eax, 8(%3)\n"
 	       "        movnti %%edx, 12(%3)\n"
-	       "4:      movl 16(%4), %%eax\n"
-	       "41:     movl 20(%4), %%edx\n"
+	       "4:      "__copyuser_seg" movl 16(%4), %%eax\n"
+	       "41:     "__copyuser_seg" movl 20(%4), %%edx\n"
 	       "        movnti %%eax, 16(%3)\n"
 	       "        movnti %%edx, 20(%3)\n"
-	       "10:     movl 24(%4), %%eax\n"
-	       "51:     movl 28(%4), %%edx\n"
+	       "10:     "__copyuser_seg" movl 24(%4), %%eax\n"
+	       "51:     "__copyuser_seg" movl 28(%4), %%edx\n"
 	       "        movnti %%eax, 24(%3)\n"
 	       "        movnti %%edx, 28(%3)\n"
-	       "11:     movl 32(%4), %%eax\n"
-	       "61:     movl 36(%4), %%edx\n"
+	       "11:     "__copyuser_seg" movl 32(%4), %%eax\n"
+	       "61:     "__copyuser_seg" movl 36(%4), %%edx\n"
 	       "        movnti %%eax, 32(%3)\n"
 	       "        movnti %%edx, 36(%3)\n"
-	       "12:     movl 40(%4), %%eax\n"
-	       "71:     movl 44(%4), %%edx\n"
+	       "12:     "__copyuser_seg" movl 40(%4), %%eax\n"
+	       "71:     "__copyuser_seg" movl 44(%4), %%edx\n"
 	       "        movnti %%eax, 40(%3)\n"
 	       "        movnti %%edx, 44(%3)\n"
-	       "13:     movl 48(%4), %%eax\n"
-	       "81:     movl 52(%4), %%edx\n"
+	       "13:     "__copyuser_seg" movl 48(%4), %%eax\n"
+	       "81:     "__copyuser_seg" movl 52(%4), %%edx\n"
 	       "        movnti %%eax, 48(%3)\n"
 	       "        movnti %%edx, 52(%3)\n"
-	       "14:     movl 56(%4), %%eax\n"
-	       "91:     movl 60(%4), %%edx\n"
+	       "14:     "__copyuser_seg" movl 56(%4), %%eax\n"
+	       "91:     "__copyuser_seg" movl 60(%4), %%edx\n"
 	       "        movnti %%eax, 56(%3)\n"
 	       "        movnti %%edx, 60(%3)\n"
 	       "        addl $-64, %0\n"
@@ -446,9 +554,9 @@ static unsigned long __copy_user_intel_nocache(void *to,
 	       "        shrl  $2, %0\n"
 	       "        andl $3, %%eax\n"
 	       "        cld\n"
-	       "6:      rep; movsl\n"
+	       "6:      rep; "__copyuser_seg" movsl\n"
 	       "        movl %%eax,%0\n"
-	       "7:      rep; movsb\n"
+	       "7:      rep; "__copyuser_seg" movsb\n"
 	       "8:\n"
 	       ".section .fixup,\"ax\"\n"
 	       "9:      lea 0(%%eax,%0,4),%0\n"
@@ -488,32 +596,36 @@ static unsigned long __copy_user_intel_nocache(void *to,
  */
 unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
 					unsigned long size);
-unsigned long __copy_user_intel(void __user *to, const void *from,
+unsigned long __generic_copy_to_user_intel(void __user *to, const void *from,
+					unsigned long size);
+unsigned long __generic_copy_from_user_intel(void *to, const void __user *from,
 					unsigned long size);
 unsigned long __copy_user_zeroing_intel_nocache(void *to,
 				const void __user *from, unsigned long size);
 #endif /* CONFIG_X86_INTEL_USERCOPY */
 
 /* Generic arbitrary sized copy.  */
-#define __copy_user(to, from, size)					\
+#define __copy_user(to, from, size, prefix, set, restore)		\
 do {									\
 	int __d0, __d1, __d2;						\
 	__asm__ __volatile__(						\
+		set							\
 		"	cmp  $7,%0\n"					\
 		"	jbe  1f\n"					\
 		"	movl %1,%0\n"					\
 		"	negl %0\n"					\
 		"	andl $7,%0\n"					\
 		"	subl %0,%3\n"					\
-		"4:	rep; movsb\n"					\
+		"4:	rep; "prefix"movsb\n"				\
 		"	movl %3,%0\n"					\
 		"	shrl $2,%0\n"					\
 		"	andl $3,%3\n"					\
 		"	.align 2,0x90\n"				\
-		"0:	rep; movsl\n"					\
+		"0:	rep; "prefix"movsl\n"				\
 		"	movl %3,%0\n"					\
-		"1:	rep; movsb\n"					\
+		"1:	rep; "prefix"movsb\n"				\
 		"2:\n"							\
+		restore							\
 		".section .fixup,\"ax\"\n"				\
 		"5:	addl %3,%0\n"					\
 		"	jmp 2b\n"					\
@@ -538,14 +650,14 @@ do {									\
 		"	negl %0\n"					\
 		"	andl $7,%0\n"					\
 		"	subl %0,%3\n"					\
-		"4:	rep; movsb\n"					\
+		"4:	rep; "__copyuser_seg"movsb\n"			\
 		"	movl %3,%0\n"					\
 		"	shrl $2,%0\n"					\
 		"	andl $3,%3\n"					\
 		"	.align 2,0x90\n"				\
-		"0:	rep; movsl\n"					\
+		"0:	rep; "__copyuser_seg"movsl\n"			\
 		"	movl %3,%0\n"					\
-		"1:	rep; movsb\n"					\
+		"1:	rep; "__copyuser_seg"movsb\n"			\
 		"2:\n"							\
 		".section .fixup,\"ax\"\n"				\
 		"5:	addl %3,%0\n"					\
@@ -572,9 +684,9 @@ unsigned long __copy_to_user_ll(void __user *to, const void *from,
 {
 	stac();
 	if (movsl_is_ok(to, from, n))
-		__copy_user(to, from, n);
+		__copy_user(to, from, n, "", __COPYUSER_SET_ES, __COPYUSER_RESTORE_ES);
 	else
-		n = __copy_user_intel(to, from, n);
+		n = __generic_copy_to_user_intel(to, from, n);
 	clac();
 	return n;
 }
@@ -598,10 +710,9 @@ unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from,
 {
 	stac();
 	if (movsl_is_ok(to, from, n))
-		__copy_user(to, from, n);
+		__copy_user(to, from, n, __copyuser_seg, "", "");
 	else
-		n = __copy_user_intel((void __user *)to,
-				      (const void *)from, n);
+		n = __generic_copy_from_user_intel(to, from, n);
 	clac();
 	return n;
 }
@@ -632,66 +743,51 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr
 	if (n > 64 && cpu_has_xmm2)
 		n = __copy_user_intel_nocache(to, from, n);
 	else
-		__copy_user(to, from, n);
+		__copy_user(to, from, n, __copyuser_seg, "", "");
 #else
-	__copy_user(to, from, n);
+	__copy_user(to, from, n, __copyuser_seg, "", "");
 #endif
 	clac();
 	return n;
 }
 EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero);
 
-/**
- * copy_to_user: - Copy a block of data into user space.
- * @to:   Destination address, in user space.
- * @from: Source address, in kernel space.
- * @n:    Number of bytes to copy.
- *
- * Context: User context only.  This function may sleep.
- *
- * Copy data from kernel space to user space.
- *
- * Returns number of bytes that could not be copied.
- * On success, this will be zero.
- */
-unsigned long
-copy_to_user(void __user *to, const void *from, unsigned long n)
-{
-	if (access_ok(VERIFY_WRITE, to, n))
-		n = __copy_to_user(to, from, n);
-	return n;
-}
-EXPORT_SYMBOL(copy_to_user);
-
-/**
- * copy_from_user: - Copy a block of data from user space.
- * @to:   Destination address, in kernel space.
- * @from: Source address, in user space.
- * @n:    Number of bytes to copy.
- *
- * Context: User context only.  This function may sleep.
- *
- * Copy data from user space to kernel space.
- *
- * Returns number of bytes that could not be copied.
- * On success, this will be zero.
- *
- * If some data could not be copied, this function will pad the copied
- * data to the requested size using zero bytes.
- */
-unsigned long
-_copy_from_user(void *to, const void __user *from, unsigned long n)
-{
-	if (access_ok(VERIFY_READ, from, n))
-		n = __copy_from_user(to, from, n);
-	else
-		memset(to, 0, n);
-	return n;
-}
-EXPORT_SYMBOL(_copy_from_user);
-
 void copy_from_user_overflow(void)
 {
 	WARN(1, "Buffer overflow detected!\n");
 }
 EXPORT_SYMBOL(copy_from_user_overflow);
+
+void copy_to_user_overflow(void)
+{
+	WARN(1, "Buffer overflow detected!\n");
+}
+EXPORT_SYMBOL(copy_to_user_overflow);
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+void __set_fs(mm_segment_t x)
+{
+	switch (x.seg) {
+	case 0:
+		loadsegment(gs, 0);
+		break;
+	case TASK_SIZE_MAX:
+		loadsegment(gs, __USER_DS);
+		break;
+	case -1UL:
+		loadsegment(gs, __KERNEL_DS);
+		break;
+	default:
+		BUG();
+	}
+	return;
+}
+EXPORT_SYMBOL(__set_fs);
+
+void set_fs(mm_segment_t x)
+{
+	current_thread_info()->addr_limit = x;
+	__set_fs(x);
+}
+EXPORT_SYMBOL(set_fs);
+#endif
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index 906fea3..ee8a097 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -39,7 +39,7 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
 		_ASM_EXTABLE(0b,3b)
 		_ASM_EXTABLE(1b,2b)
 		: [size8] "=&c"(size), [dst] "=&D" (__d0)
-		: [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(addr),
+		: [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(____m(addr)),
 		  [zero] "r" (0UL), [eight] "r" (8UL));
 	clac();
 	return size;
@@ -54,12 +54,11 @@ unsigned long clear_user(void __user *to, unsigned long n)
 }
 EXPORT_SYMBOL(clear_user);
 
-unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len)
+unsigned long copy_in_user(void __user *to, const void __user *from, unsigned long len)
 {
-	if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) { 
-		return copy_user_generic((__force void *)to, (__force void *)from, len);
-	} 
-	return len;		
+	if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len))
+		return copy_user_generic((void __force_kernel *)____m(to), (void __force_kernel *)____m(from), len);
+	return len;
 }
 EXPORT_SYMBOL(copy_in_user);
 
@@ -69,7 +68,7 @@ EXPORT_SYMBOL(copy_in_user);
  * it is not necessary to optimize tail handling.
  */
 unsigned long
-copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
+copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest)
 {
 	char c;
 	unsigned zero_len;
@@ -87,3 +86,15 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
 	clac();
 	return len;
 }
+
+void copy_from_user_overflow(void)
+{
+	WARN(1, "Buffer overflow detected!\n");
+}
+EXPORT_SYMBOL(copy_from_user_overflow);
+
+void copy_to_user_overflow(void)
+{
+	WARN(1, "Buffer overflow detected!\n");
+}
+EXPORT_SYMBOL(copy_to_user_overflow);
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
index 903ec1e..c4166b2 100644
--- a/arch/x86/mm/extable.c
+++ b/arch/x86/mm/extable.c
@@ -6,12 +6,24 @@
 static inline unsigned long
 ex_insn_addr(const struct exception_table_entry *x)
 {
-	return (unsigned long)&x->insn + x->insn;
+	unsigned long reloc = 0;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
+	return (unsigned long)&x->insn + x->insn + reloc;
 }
 static inline unsigned long
 ex_fixup_addr(const struct exception_table_entry *x)
 {
-	return (unsigned long)&x->fixup + x->fixup;
+	unsigned long reloc = 0;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
+	return (unsigned long)&x->fixup + x->fixup + reloc;
 }
 
 int fixup_exception(struct pt_regs *regs)
@@ -20,7 +32,7 @@ int fixup_exception(struct pt_regs *regs)
 	unsigned long new_ip;
 
 #ifdef CONFIG_PNPBIOS
-	if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
+	if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) {
 		extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
 		extern u32 pnp_bios_is_utter_crap;
 		pnp_bios_is_utter_crap = 1;
@@ -145,6 +157,13 @@ void sort_extable(struct exception_table_entry *start,
 		i += 4;
 		p->fixup -= i;
 		i += 4;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		BUILD_BUG_ON(!IS_ENABLED(CONFIG_BUILDTIME_EXTABLE_SORT));
+		p->insn -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+		p->fixup -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
 	}
 }
 
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 0e88336..2bb9777 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -13,12 +13,19 @@
 #include <linux/perf_event.h>		/* perf_sw_event		*/
 #include <linux/hugetlb.h>		/* hstate_index_to_shift	*/
 #include <linux/prefetch.h>		/* prefetchw			*/
+#include <linux/unistd.h>
+#include <linux/compiler.h>
 
 #include <asm/traps.h>			/* dotraplinkage, ...		*/
 #include <asm/pgalloc.h>		/* pgd_*(), ...			*/
 #include <asm/kmemcheck.h>		/* kmemcheck_*(), ...		*/
 #include <asm/fixmap.h>			/* VSYSCALL_START		*/
 #include <asm/context_tracking.h>	/* exception_enter(), ...	*/
+#include <asm/tlbflush.h>
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#include <asm/stacktrace.h>
+#endif
 
 /*
  * Page fault error code bits:
@@ -56,7 +63,7 @@ static inline int __kprobes notify_page_fault(struct pt_regs *regs)
 	int ret = 0;
 
 	/* kprobe_running() needs smp_processor_id() */
-	if (kprobes_built_in() && !user_mode_vm(regs)) {
+	if (kprobes_built_in() && !user_mode(regs)) {
 		preempt_disable();
 		if (kprobe_running() && kprobe_fault_handler(regs, 14))
 			ret = 1;
@@ -117,7 +124,10 @@ check_prefetch_opcode(struct pt_regs *regs, unsigned char *instr,
 		return !instr_lo || (instr_lo>>1) == 1;
 	case 0x00:
 		/* Prefetch instruction is 0x0F0D or 0x0F18 */
-		if (probe_kernel_address(instr, opcode))
+		if (user_mode(regs)) {
+			if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
+				return 0;
+		} else if (probe_kernel_address(instr, opcode))
 			return 0;
 
 		*prefetch = (instr_lo == 0xF) &&
@@ -151,7 +161,10 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
 	while (instr < max_instr) {
 		unsigned char opcode;
 
-		if (probe_kernel_address(instr, opcode))
+		if (user_mode(regs)) {
+			if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
+				break;
+		} else if (probe_kernel_address(instr, opcode))
 			break;
 
 		instr++;
@@ -182,6 +195,34 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address,
 	force_sig_info(si_signo, &info, tsk);
 }
 
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address);
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+static int pax_handle_fetch_fault(struct pt_regs *regs);
+#endif
+
+#ifdef CONFIG_PAX_PAGEEXEC
+static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+
+	pgd = pgd_offset(mm, address);
+	if (!pgd_present(*pgd))
+		return NULL;
+	pud = pud_offset(pgd, address);
+	if (!pud_present(*pud))
+		return NULL;
+	pmd = pmd_offset(pud, address);
+	if (!pmd_present(*pmd))
+		return NULL;
+	return pmd;
+}
+#endif
+
 DEFINE_SPINLOCK(pgd_lock);
 LIST_HEAD(pgd_list);
 
@@ -232,10 +273,22 @@ void vmalloc_sync_all(void)
 	for (address = VMALLOC_START & PMD_MASK;
 	     address >= TASK_SIZE && address < FIXADDR_TOP;
 	     address += PMD_SIZE) {
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		unsigned long cpu;
+#else
 		struct page *page;
+#endif
 
 		spin_lock(&pgd_lock);
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
+			pgd_t *pgd = get_cpu_pgd(cpu);
+			pmd_t *ret;
+#else
 		list_for_each_entry(page, &pgd_list, lru) {
+			pgd_t *pgd;
 			spinlock_t *pgt_lock;
 			pmd_t *ret;
 
@@ -243,8 +296,14 @@ void vmalloc_sync_all(void)
 			pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
 
 			spin_lock(pgt_lock);
-			ret = vmalloc_sync_one(page_address(page), address);
+			pgd = page_address(page);
+#endif
+
+			ret = vmalloc_sync_one(pgd, address);
+
+#ifndef CONFIG_PAX_PER_CPU_PGD
 			spin_unlock(pgt_lock);
+#endif
 
 			if (!ret)
 				break;
@@ -278,6 +337,11 @@ static noinline __kprobes int vmalloc_fault(unsigned long address)
 	 * an interrupt in the middle of a task switch..
 	 */
 	pgd_paddr = read_cr3();
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	BUG_ON(__pa(get_cpu_pgd(smp_processor_id())) != (pgd_paddr & PHYSICAL_PAGE_MASK));
+#endif
+
 	pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
 	if (!pmd_k)
 		return -1;
@@ -373,7 +437,14 @@ static noinline __kprobes int vmalloc_fault(unsigned long address)
 	 * happen within a race in page table update. In the later
 	 * case just flush:
 	 */
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	BUG_ON(__pa(get_cpu_pgd(smp_processor_id())) != (read_cr3() & PHYSICAL_PAGE_MASK));
+	pgd = pgd_offset_cpu(smp_processor_id(), address);
+#else
 	pgd = pgd_offset(current->active_mm, address);
+#endif
+
 	pgd_ref = pgd_offset_k(address);
 	if (pgd_none(*pgd_ref))
 		return -1;
@@ -543,7 +614,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
 static int is_errata100(struct pt_regs *regs, unsigned long address)
 {
 #ifdef CONFIG_X86_64
-	if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32))
+	if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32))
 		return 1;
 #endif
 	return 0;
@@ -570,7 +641,7 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
 }
 
 static const char nx_warning[] = KERN_CRIT
-"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n";
+"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n";
 
 static void
 show_fault_oops(struct pt_regs *regs, unsigned long error_code,
@@ -579,15 +650,27 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 	if (!oops_may_print())
 		return;
 
-	if (error_code & PF_INSTR) {
+	if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) {
 		unsigned int level;
 
 		pte_t *pte = lookup_address(address, &level);
 
 		if (pte && pte_present(*pte) && !pte_exec(*pte))
-			printk(nx_warning, from_kuid(&init_user_ns, current_uid()));
+			printk(nx_warning, from_kuid_munged(&init_user_ns, current_uid()), current->comm, task_pid_nr(current));
 	}
 
+#ifdef CONFIG_PAX_KERNEXEC
+	if (init_mm.start_code <= address && address < init_mm.end_code) {
+		if (current->signal->curr_ip)
+			printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
+					&current->signal->curr_ip, current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+		else
+			printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+	}
+#endif
+
 	printk(KERN_ALERT "BUG: unable to handle kernel ");
 	if (address < PAGE_SIZE)
 		printk(KERN_CONT "NULL pointer dereference");
@@ -750,6 +833,22 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
 				return;
 		}
 #endif
+
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+		if (pax_is_fetch_fault(regs, error_code, address)) {
+
+#ifdef CONFIG_PAX_EMUTRAMP
+			switch (pax_handle_fetch_fault(regs)) {
+			case 2:
+				return;
+			}
+#endif
+
+			pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
+			do_group_exit(SIGKILL);
+		}
+#endif
+
 		/* Kernel addresses are always protection faults: */
 		if (address >= TASK_SIZE)
 			error_code |= PF_PROT;
@@ -835,7 +934,7 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
 	if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
 		printk(KERN_ERR
 	"MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n",
-			tsk->comm, tsk->pid, address);
+			tsk->comm, task_pid_nr(tsk), address);
 		code = BUS_MCEERR_AR;
 	}
 #endif
@@ -898,6 +997,99 @@ static int spurious_fault_check(unsigned long error_code, pte_t *pte)
 	return 1;
 }
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
+static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code)
+{
+	pte_t *pte;
+	pmd_t *pmd;
+	spinlock_t *ptl;
+	unsigned char pte_mask;
+
+	if ((__supported_pte_mask & _PAGE_NX) || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) ||
+	    !(mm->pax_flags & MF_PAX_PAGEEXEC))
+		return 0;
+
+	/* PaX: it's our fault, let's handle it if we can */
+
+	/* PaX: take a look at read faults before acquiring any locks */
+	if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) {
+		/* instruction fetch attempt from a protected page in user mode */
+		up_read(&mm->mmap_sem);
+
+#ifdef CONFIG_PAX_EMUTRAMP
+		switch (pax_handle_fetch_fault(regs)) {
+		case 2:
+			return 1;
+		}
+#endif
+
+		pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
+		do_group_exit(SIGKILL);
+	}
+
+	pmd = pax_get_pmd(mm, address);
+	if (unlikely(!pmd))
+		return 0;
+
+	pte = pte_offset_map_lock(mm, pmd, address, &ptl);
+	if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) {
+		pte_unmap_unlock(pte, ptl);
+		return 0;
+	}
+
+	if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) {
+		/* write attempt to a protected page in user mode */
+		pte_unmap_unlock(pte, ptl);
+		return 0;
+	}
+
+#ifdef CONFIG_SMP
+	if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask)))
+#else
+	if (likely(address > get_limit(regs->cs)))
+#endif
+	{
+		set_pte(pte, pte_mkread(*pte));
+		__flush_tlb_one(address);
+		pte_unmap_unlock(pte, ptl);
+		up_read(&mm->mmap_sem);
+		return 1;
+	}
+
+	pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1));
+
+	/*
+	 * PaX: fill DTLB with user rights and retry
+	 */
+	__asm__ __volatile__ (
+		"orb %2,(%1)\n"
+#if defined(CONFIG_M586) || defined(CONFIG_M586TSC)
+/*
+ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's
+ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any*
+ * page fault when examined during a TLB load attempt. this is true not only
+ * for PTEs holding a non-present entry but also present entries that will
+ * raise a page fault (such as those set up by PaX, or the copy-on-write
+ * mechanism). in effect it means that we do *not* need to flush the TLBs
+ * for our target pages since their PTEs are simply not in the TLBs at all.
+
+ * the best thing in omitting it is that we gain around 15-20% speed in the
+ * fast path of the page fault handler and can get rid of tracing since we
+ * can no longer flush unintended entries.
+ */
+		"invlpg (%0)\n"
+#endif
+		__copyuser_seg"testb $0,(%0)\n"
+		"xorb %3,(%1)\n"
+		:
+		: "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER)
+		: "memory", "cc");
+	pte_unmap_unlock(pte, ptl);
+	up_read(&mm->mmap_sem);
+	return 1;
+}
+#endif
+
 /*
  * Handle a spurious fault caused by a stale TLB entry.
  *
@@ -964,6 +1156,9 @@ int show_unhandled_signals = 1;
 static inline int
 access_error(unsigned long error_code, struct vm_area_struct *vma)
 {
+	if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC))
+		return 1;
+
 	if (error_code & PF_WRITE) {
 		/* write, present and write, not present: */
 		if (unlikely(!(vma->vm_flags & VM_WRITE)))
@@ -992,7 +1187,7 @@ static inline bool smap_violation(int error_code, struct pt_regs *regs)
 	if (error_code & PF_USER)
 		return false;
 
-	if (!user_mode_vm(regs) && (regs->flags & X86_EFLAGS_AC))
+	if (!user_mode(regs) && (regs->flags & X86_EFLAGS_AC))
 		return false;
 
 	return true;
@@ -1008,18 +1203,33 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code)
 {
 	struct vm_area_struct *vma;
 	struct task_struct *tsk;
-	unsigned long address;
 	struct mm_struct *mm;
 	int fault;
 	int write = error_code & PF_WRITE;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
 					(write ? FAULT_FLAG_WRITE : 0);
 
-	tsk = current;
-	mm = tsk->mm;
-
 	/* Get the faulting address: */
-	address = read_cr2();
+	unsigned long address = read_cr2();
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	if (!user_mode(regs) && address < 2 * pax_user_shadow_base) {
+		if (!search_exception_tables(regs->ip)) {
+			printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n");
+			bad_area_nosemaphore(regs, error_code, address);
+			return;
+		}
+		if (address < pax_user_shadow_base) {
+			printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n");
+			printk(KERN_ERR "PAX: faulting IP: %pS\n", (void *)regs->ip);
+			show_trace_log_lvl(NULL, NULL, (void *)regs->sp, regs->bp, KERN_ERR);
+		} else
+			address -= pax_user_shadow_base;
+	}
+#endif
+
+	tsk = current;
+	mm = tsk->mm;
 
 	/*
 	 * Detect and handle instructions that would cause a page fault for
@@ -1080,7 +1290,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	 * User-mode registers count as a user access even for any
 	 * potential system fault or CPU buglet:
 	 */
-	if (user_mode_vm(regs)) {
+	if (user_mode(regs)) {
 		local_irq_enable();
 		error_code |= PF_USER;
 	} else {
@@ -1142,6 +1352,11 @@ retry:
 		might_sleep();
 	}
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
+	if (pax_handle_pageexec_fault(regs, mm, address, error_code))
+		return;
+#endif
+
 	vma = find_vma(mm, address);
 	if (unlikely(!vma)) {
 		bad_area(regs, error_code, address);
@@ -1153,18 +1368,24 @@ retry:
 		bad_area(regs, error_code, address);
 		return;
 	}
-	if (error_code & PF_USER) {
-		/*
-		 * Accessing the stack below %sp is always a bug.
-		 * The large cushion allows instructions like enter
-		 * and pusha to work. ("enter $65535, $31" pushes
-		 * 32 pointers and then decrements %sp by 65535.)
-		 */
-		if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) {
-			bad_area(regs, error_code, address);
-			return;
-		}
+	/*
+	 * Accessing the stack below %sp is always a bug.
+	 * The large cushion allows instructions like enter
+	 * and pusha to work. ("enter $65535, $31" pushes
+	 * 32 pointers and then decrements %sp by 65535.)
+	 */
+	if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) {
+		bad_area(regs, error_code, address);
+		return;
 	}
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) {
+		bad_area(regs, error_code, address);
+		return;
+	}
+#endif
+
 	if (unlikely(expand_stack(vma, address))) {
 		bad_area(regs, error_code, address);
 		return;
@@ -1228,3 +1449,292 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	__do_page_fault(regs, error_code);
 	exception_exit(regs);
 }
+
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address)
+{
+	struct mm_struct *mm = current->mm;
+	unsigned long ip = regs->ip;
+
+	if (v8086_mode(regs))
+		ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff);
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (mm->pax_flags & MF_PAX_PAGEEXEC) {
+		if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR))
+			return true;
+		if (!(error_code & (PF_PROT | PF_WRITE)) && ip == address)
+			return true;
+		return false;
+	}
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC) {
+		if (!(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address))
+			return true;
+		return false;
+	}
+#endif
+
+	return false;
+}
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+static int pax_handle_fetch_fault_32(struct pt_regs *regs)
+{
+	int err;
+
+	do { /* PaX: libffi trampoline emulation */
+		unsigned char mov, jmp;
+		unsigned int addr1, addr2;
+
+#ifdef CONFIG_X86_64
+		if ((regs->ip + 9) >> 32)
+			break;
+#endif
+
+		err = get_user(mov, (unsigned char __user *)regs->ip);
+		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
+		err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
+		err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
+
+		if (err)
+			break;
+
+		if (mov == 0xB8 && jmp == 0xE9) {
+			regs->ax = addr1;
+			regs->ip = (unsigned int)(regs->ip + addr2 + 10);
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: gcc trampoline emulation #1 */
+		unsigned char mov1, mov2;
+		unsigned short jmp;
+		unsigned int addr1, addr2;
+
+#ifdef CONFIG_X86_64
+		if ((regs->ip + 11) >> 32)
+			break;
+#endif
+
+		err = get_user(mov1, (unsigned char __user *)regs->ip);
+		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
+		err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5));
+		err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
+		err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10));
+
+		if (err)
+			break;
+
+		if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) {
+			regs->cx = addr1;
+			regs->ax = addr2;
+			regs->ip = addr2;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: gcc trampoline emulation #2 */
+		unsigned char mov, jmp;
+		unsigned int addr1, addr2;
+
+#ifdef CONFIG_X86_64
+		if ((regs->ip + 9) >> 32)
+			break;
+#endif
+
+		err = get_user(mov, (unsigned char __user *)regs->ip);
+		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
+		err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
+		err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
+
+		if (err)
+			break;
+
+		if (mov == 0xB9 && jmp == 0xE9) {
+			regs->cx = addr1;
+			regs->ip = (unsigned int)(regs->ip + addr2 + 10);
+			return 2;
+		}
+	} while (0);
+
+	return 1; /* PaX in action */
+}
+
+#ifdef CONFIG_X86_64
+static int pax_handle_fetch_fault_64(struct pt_regs *regs)
+{
+	int err;
+
+	do { /* PaX: libffi trampoline emulation */
+		unsigned short mov1, mov2, jmp1;
+		unsigned char stcclc, jmp2;
+		unsigned long addr1, addr2;
+
+		err = get_user(mov1, (unsigned short __user *)regs->ip);
+		err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
+		err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
+		err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
+		err |= get_user(stcclc, (unsigned char __user *)(regs->ip + 20));
+		err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 21));
+		err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 23));
+
+		if (err)
+			break;
+
+		if (mov1 == 0xBB49 && mov2 == 0xBA49 && (stcclc == 0xF8 || stcclc == 0xF9) && jmp1 == 0xFF49 && jmp2 == 0xE3) {
+			regs->r11 = addr1;
+			regs->r10 = addr2;
+			if (stcclc == 0xF8)
+				regs->flags &= ~X86_EFLAGS_CF;
+			else
+				regs->flags |= X86_EFLAGS_CF;
+			regs->ip = addr1;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: gcc trampoline emulation #1 */
+		unsigned short mov1, mov2, jmp1;
+		unsigned char jmp2;
+		unsigned int addr1;
+		unsigned long addr2;
+
+		err = get_user(mov1, (unsigned short __user *)regs->ip);
+		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2));
+		err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6));
+		err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8));
+		err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16));
+		err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18));
+
+		if (err)
+			break;
+
+		if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
+			regs->r11 = addr1;
+			regs->r10 = addr2;
+			regs->ip = addr1;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: gcc trampoline emulation #2 */
+		unsigned short mov1, mov2, jmp1;
+		unsigned char jmp2;
+		unsigned long addr1, addr2;
+
+		err = get_user(mov1, (unsigned short __user *)regs->ip);
+		err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
+		err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
+		err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
+		err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20));
+		err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22));
+
+		if (err)
+			break;
+
+		if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
+			regs->r11 = addr1;
+			regs->r10 = addr2;
+			regs->ip = addr1;
+			return 2;
+		}
+	} while (0);
+
+	return 1; /* PaX in action */
+}
+#endif
+
+/*
+ * PaX: decide what to do with offenders (regs->ip = fault address)
+ *
+ * returns 1 when task should be killed
+ *         2 when gcc trampoline was detected
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+	if (v8086_mode(regs))
+		return 1;
+
+	if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
+		return 1;
+
+#ifdef CONFIG_X86_32
+	return pax_handle_fetch_fault_32(regs);
+#else
+	if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))
+		return pax_handle_fetch_fault_32(regs);
+	else
+		return pax_handle_fetch_fault_64(regs);
+#endif
+}
+#endif
+
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 20; i++) {
+		unsigned char c;
+		if (get_user(c, (unsigned char __force_user *)pc+i))
+			printk(KERN_CONT "?? ");
+		else
+			printk(KERN_CONT "%02x ", c);
+	}
+	printk("\n");
+
+	printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long));
+	for (i = -1; i < 80 / (long)sizeof(long); i++) {
+		unsigned long c;
+		if (get_user(c, (unsigned long __force_user *)sp+i)) {
+#ifdef CONFIG_X86_32
+			printk(KERN_CONT "???????? ");
+#else
+			if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)))
+				printk(KERN_CONT "???????? ???????? ");
+			else
+				printk(KERN_CONT "???????????????? ");
+#endif
+		} else {
+#ifdef CONFIG_X86_64
+			if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) {
+				printk(KERN_CONT "%08x ", (unsigned int)c);
+				printk(KERN_CONT "%08x ", (unsigned int)(c >> 32));
+			} else
+#endif
+				printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c);
+		}
+	}
+	printk("\n");
+}
+#endif
+
+/**
+ * probe_kernel_write(): safely attempt to write to a location
+ * @dst: address to write to
+ * @src: pointer to the data that shall be written
+ * @size: size of the data chunk
+ *
+ * Safely write to address @dst from the buffer at @src.  If a kernel fault
+ * happens, handle that and return -EFAULT.
+ */
+long notrace probe_kernel_write(void *dst, const void *src, size_t size)
+{
+	long ret;
+	mm_segment_t old_fs = get_fs();
+
+	set_fs(KERNEL_DS);
+	pagefault_disable();
+	pax_open_kernel();
+	ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
+	pax_close_kernel();
+	pagefault_enable();
+	set_fs(old_fs);
+
+	return ret ? -EFAULT : 0;
+}
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index dd74e46..7d26398 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -255,7 +255,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	addr = start;
 	len = (unsigned long) nr_pages << PAGE_SHIFT;
 	end = start + len;
-	if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
+	if (unlikely(!__access_ok(write ? VERIFY_WRITE : VERIFY_READ,
 					(void __user *)start, len)))
 		return 0;
 
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index 6f31ee5..8ee4164 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -44,7 +44,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
 	idx = type + KM_TYPE_NR*smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 	BUG_ON(!pte_none(*(kmap_pte-idx)));
+
+	pax_open_kernel();
 	set_pte(kmap_pte-idx, mk_pte(page, prot));
+	pax_close_kernel();
+
 	arch_flush_lazy_mmu_mode();
 
 	return (void *)vaddr;
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index ae1aa71..d9bea75 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -271,23 +271,30 @@ follow_huge_pud(struct mm_struct *mm, unsigned long address,
 #ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
 static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
 		unsigned long addr, unsigned long len,
-		unsigned long pgoff, unsigned long flags)
+		unsigned long pgoff, unsigned long flags, unsigned long offset)
 {
 	struct hstate *h = hstate_file(file);
 	struct vm_unmapped_area_info info;
-
+	
 	info.flags = 0;
 	info.length = len;
 	info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (current->mm->pax_flags & MF_PAX_RANDMMAP)
+		info.low_limit += current->mm->delta_mmap;
+#endif
+
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
 static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 		unsigned long addr0, unsigned long len,
-		unsigned long pgoff, unsigned long flags)
+		unsigned long pgoff, unsigned long flags, unsigned long offset)
 {
 	struct hstate *h = hstate_file(file);
 	struct vm_unmapped_area_info info;
@@ -299,6 +306,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 	info.high_limit = current->mm->mmap_base;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	/*
@@ -311,6 +319,12 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (current->mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += current->mm->delta_mmap;
+#endif
+
 		info.high_limit = TASK_SIZE;
 		addr = vm_unmapped_area(&info);
 	}
@@ -325,10 +339,20 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	struct hstate *h = hstate_file(file);
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
+	unsigned long pax_task_size = TASK_SIZE;
+	unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
 
 	if (len & ~huge_page_mask(h))
 		return -EINVAL;
-	if (len > TASK_SIZE)
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	pax_task_size -= PAGE_SIZE;
+
+	if (len > pax_task_size)
 		return -ENOMEM;
 
 	if (flags & MAP_FIXED) {
@@ -337,19 +361,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 		return addr;
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (pax_task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
 		return hugetlb_get_unmapped_area_bottomup(file, addr, len,
-				pgoff, flags);
+				pgoff, flags, offset);
 	else
 		return hugetlb_get_unmapped_area_topdown(file, addr, len,
-				pgoff, flags);
+				pgoff, flags, offset);
 }
 
 #endif /*HAVE_ARCH_HUGETLB_UNMAPPED_AREA*/
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 59b7fc4..b1dd75f 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -4,6 +4,7 @@
 #include <linux/swap.h>
 #include <linux/memblock.h>
 #include <linux/bootmem.h>	/* for max_low_pfn */
+#include <linux/tboot.h>
 
 #include <asm/cacheflush.h>
 #include <asm/e820.h>
@@ -17,6 +18,8 @@
 #include <asm/proto.h>
 #include <asm/dma.h>		/* for MAX_DMA_PFN */
 #include <asm/microcode.h>
+#include <asm/desc.h>
+#include <asm/bios_ebda.h>
 
 #include "mm_internal.h"
 
@@ -464,10 +467,40 @@ void __init init_mem_mapping(void)
  * Access has to be given to non-kernel-ram areas as well, these contain the PCI
  * mmio resources as well as potential bios/acpi data regions.
  */
+
+#ifdef CONFIG_GRKERNSEC_KMEM
+static unsigned int ebda_start __read_only;
+static unsigned int ebda_end __read_only;
+#endif
+
 int devmem_is_allowed(unsigned long pagenr)
 {
-	if (pagenr < 256)
+#ifdef CONFIG_GRKERNSEC_KMEM
+	/* allow BDA */
+	if (!pagenr)
 		return 1;
+	/* allow EBDA */
+	if (pagenr >= ebda_start && pagenr < ebda_end)
+		return 1;
+	/* if tboot is in use, allow access to its hardcoded serial log range */
+	if (tboot_enabled() && ((0x60000 >> PAGE_SHIFT) <= pagenr) && (pagenr < (0x68000 >> PAGE_SHIFT)))
+		return 1;
+#else
+	if (!pagenr)
+		return 1;
+#ifdef CONFIG_VM86
+	if (pagenr < (ISA_START_ADDRESS >> PAGE_SHIFT))
+		return 1;
+#endif
+#endif
+
+	if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
+		return 1;
+#ifdef CONFIG_GRKERNSEC_KMEM
+	/* throw out everything else below 1MB */
+	if (pagenr <= 256)
+		return 0;
+#endif
 	if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
 		return 0;
 	if (!page_is_ram(pagenr))
@@ -524,8 +557,117 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 #endif
 }
 
+#ifdef CONFIG_GRKERNSEC_KMEM
+static inline void gr_init_ebda(void)
+{
+	unsigned int ebda_addr;
+	unsigned int ebda_size = 0;
+
+	ebda_addr = get_bios_ebda();
+	if (ebda_addr) {
+		ebda_size = *(unsigned char *)phys_to_virt(ebda_addr);
+		ebda_size <<= 10;
+	}
+	if (ebda_addr && ebda_size) {
+		ebda_start = ebda_addr >> PAGE_SHIFT;
+		ebda_end = min((unsigned int)PAGE_ALIGN(ebda_addr + ebda_size), (unsigned int)0xa0000) >> PAGE_SHIFT;
+	} else {
+		ebda_start = 0x9f000 >> PAGE_SHIFT;
+		ebda_end = 0xa0000 >> PAGE_SHIFT;
+	}
+}
+#else
+static inline void gr_init_ebda(void) { }
+#endif
+
 void free_initmem(void)
 {
+#ifdef CONFIG_PAX_KERNEXEC
+#ifdef CONFIG_X86_32
+	/* PaX: limit KERNEL_CS to actual size */
+	unsigned long addr, limit;
+	struct desc_struct d;
+	int cpu;
+#else
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	unsigned long addr, end;
+#endif
+#endif
+
+	gr_init_ebda();
+
+#ifdef CONFIG_PAX_KERNEXEC
+#ifdef CONFIG_X86_32
+	limit = paravirt_enabled() ? ktva_ktla(0xffffffff) : (unsigned long)&_etext;
+	limit = (limit - 1UL) >> PAGE_SHIFT;
+
+	memset(__LOAD_PHYSICAL_ADDR + PAGE_OFFSET, POISON_FREE_INITMEM, PAGE_SIZE);
+	for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
+		pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC);
+		write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S);
+		write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEXEC_KERNEL_CS, &d, DESCTYPE_S);
+	}
+
+	/* PaX: make KERNEL_CS read-only */
+	addr = PFN_ALIGN(ktla_ktva((unsigned long)&_text));
+	if (!paravirt_enabled())
+		set_memory_ro(addr, (PFN_ALIGN(_sdata) - addr) >> PAGE_SHIFT);
+/*
+		for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_sdata; addr += PMD_SIZE) {
+			pgd = pgd_offset_k(addr);
+			pud = pud_offset(pgd, addr);
+			pmd = pmd_offset(pud, addr);
+			set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
+		}
+*/
+#ifdef CONFIG_X86_PAE
+	set_memory_nx(PFN_ALIGN(__init_begin), (PFN_ALIGN(__init_end) - PFN_ALIGN(__init_begin)) >> PAGE_SHIFT);
+/*
+	for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) {
+		pgd = pgd_offset_k(addr);
+		pud = pud_offset(pgd, addr);
+		pmd = pmd_offset(pud, addr);
+		set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
+	}
+*/
+#endif
+
+#ifdef CONFIG_MODULES
+	set_memory_4k((unsigned long)MODULES_EXEC_VADDR, (MODULES_EXEC_END - MODULES_EXEC_VADDR) >> PAGE_SHIFT);
+#endif
+
+#else
+	/* PaX: make kernel code/rodata read-only, rest non-executable */
+	for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) {
+		pgd = pgd_offset_k(addr);
+		pud = pud_offset(pgd, addr);
+		pmd = pmd_offset(pud, addr);
+		if (!pmd_present(*pmd))
+			continue;
+		if ((unsigned long)_text <= addr && addr < (unsigned long)_sdata)
+			set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
+		else
+			set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
+	}
+
+	addr = (unsigned long)__va(__pa(__START_KERNEL_map));
+	end = addr + KERNEL_IMAGE_SIZE;
+	for (; addr < end; addr += PMD_SIZE) {
+		pgd = pgd_offset_k(addr);
+		pud = pud_offset(pgd, addr);
+		pmd = pmd_offset(pud, addr);
+		if (!pmd_present(*pmd))
+			continue;
+		if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_sdata)))
+			set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
+	}
+#endif
+
+	flush_tlb_all();
+#endif
+
 	free_init_pages("unused kernel memory",
 			(unsigned long)(&__init_begin),
 			(unsigned long)(&__init_end));
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 2d19001..6a1046c 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -62,33 +62,6 @@ static noinline int do_test_wp_bit(void);
 bool __read_mostly __vmalloc_start_set = false;
 
 /*
- * Creates a middle page table and puts a pointer to it in the
- * given global directory entry. This only returns the gd entry
- * in non-PAE compilation mode, since the middle layer is folded.
- */
-static pmd_t * __init one_md_table_init(pgd_t *pgd)
-{
-	pud_t *pud;
-	pmd_t *pmd_table;
-
-#ifdef CONFIG_X86_PAE
-	if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
-		pmd_table = (pmd_t *)alloc_low_page();
-		paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
-		set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
-		pud = pud_offset(pgd, 0);
-		BUG_ON(pmd_table != pmd_offset(pud, 0));
-
-		return pmd_table;
-	}
-#endif
-	pud = pud_offset(pgd, 0);
-	pmd_table = pmd_offset(pud, 0);
-
-	return pmd_table;
-}
-
-/*
  * Create a page table and place a pointer to it in a middle page
  * directory entry:
  */
@@ -98,13 +71,28 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
 		pte_t *page_table = (pte_t *)alloc_low_page();
 
 		paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT);
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+		set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE));
+#else
 		set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
+#endif
 		BUG_ON(page_table != pte_offset_kernel(pmd, 0));
 	}
 
 	return pte_offset_kernel(pmd, 0);
 }
 
+static pmd_t * __init one_md_table_init(pgd_t *pgd)
+{
+	pud_t *pud;
+	pmd_t *pmd_table;
+
+	pud = pud_offset(pgd, 0);
+	pmd_table = pmd_offset(pud, 0);
+
+	return pmd_table;
+}
+
 pmd_t * __init populate_extra_pmd(unsigned long vaddr)
 {
 	int pgd_idx = pgd_index(vaddr);
@@ -208,6 +196,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
 	int pgd_idx, pmd_idx;
 	unsigned long vaddr;
 	pgd_t *pgd;
+	pud_t *pud;
 	pmd_t *pmd;
 	pte_t *pte = NULL;
 	unsigned long count = page_table_range_init_count(start, end);
@@ -222,8 +211,13 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
 	pgd = pgd_base + pgd_idx;
 
 	for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
-		pmd = one_md_table_init(pgd);
-		pmd = pmd + pmd_index(vaddr);
+		pud = pud_offset(pgd, vaddr);
+		pmd = pmd_offset(pud, vaddr);
+
+#ifdef CONFIG_X86_PAE
+		paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
+#endif
+
 		for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
 							pmd++, pmd_idx++) {
 			pte = page_table_kmap_check(one_page_table_init(pmd),
@@ -235,11 +229,20 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
 	}
 }
 
-static inline int is_kernel_text(unsigned long addr)
+static inline int is_kernel_text(unsigned long start, unsigned long end)
 {
-	if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end)
-		return 1;
-	return 0;
+	if ((start > ktla_ktva((unsigned long)_etext) ||
+	     end <= ktla_ktva((unsigned long)_stext)) &&
+	    (start > ktla_ktva((unsigned long)_einittext) ||
+	     end <= ktla_ktva((unsigned long)_sinittext)) &&
+
+#ifdef CONFIG_ACPI_SLEEP
+	    (start > (unsigned long)__va(acpi_wakeup_address) + 0x4000 || end <= (unsigned long)__va(acpi_wakeup_address)) &&
+#endif
+
+	    (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000)))
+		return 0;
+	return 1;
 }
 
 /*
@@ -256,9 +259,10 @@ kernel_physical_mapping_init(unsigned long start,
 	unsigned long last_map_addr = end;
 	unsigned long start_pfn, end_pfn;
 	pgd_t *pgd_base = swapper_pg_dir;
-	int pgd_idx, pmd_idx, pte_ofs;
+	unsigned int pgd_idx, pmd_idx, pte_ofs;
 	unsigned long pfn;
 	pgd_t *pgd;
+	pud_t *pud;
 	pmd_t *pmd;
 	pte_t *pte;
 	unsigned pages_2m, pages_4k;
@@ -291,8 +295,13 @@ repeat:
 	pfn = start_pfn;
 	pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
 	pgd = pgd_base + pgd_idx;
-	for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
-		pmd = one_md_table_init(pgd);
+	for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) {
+		pud = pud_offset(pgd, 0);
+		pmd = pmd_offset(pud, 0);
+
+#ifdef CONFIG_X86_PAE
+		paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
+#endif
 
 		if (pfn >= end_pfn)
 			continue;
@@ -304,14 +313,13 @@ repeat:
 #endif
 		for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn;
 		     pmd++, pmd_idx++) {
-			unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
+			unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET;
 
 			/*
 			 * Map with big pages if possible, otherwise
 			 * create normal page tables:
 			 */
 			if (use_pse) {
-				unsigned int addr2;
 				pgprot_t prot = PAGE_KERNEL_LARGE;
 				/*
 				 * first pass will use the same initial
@@ -322,11 +330,7 @@ repeat:
 						 _PAGE_PSE);
 
 				pfn &= PMD_MASK >> PAGE_SHIFT;
-				addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
-					PAGE_OFFSET + PAGE_SIZE-1;
-
-				if (is_kernel_text(addr) ||
-				    is_kernel_text(addr2))
+				if (is_kernel_text(address, address + PMD_SIZE))
 					prot = PAGE_KERNEL_LARGE_EXEC;
 
 				pages_2m++;
@@ -343,7 +347,7 @@ repeat:
 			pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
 			pte += pte_ofs;
 			for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn;
-			     pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
+			     pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
 				pgprot_t prot = PAGE_KERNEL;
 				/*
 				 * first pass will use the same initial
@@ -351,7 +355,7 @@ repeat:
 				 */
 				pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);
 
-				if (is_kernel_text(addr))
+				if (is_kernel_text(address, address + PAGE_SIZE))
 					prot = PAGE_KERNEL_EXEC;
 
 				pages_4k++;
@@ -482,7 +486,7 @@ void __init native_pagetable_init(void)
 
 		pud = pud_offset(pgd, va);
 		pmd = pmd_offset(pud, va);
-		if (!pmd_present(*pmd))
+		if (!pmd_present(*pmd)) // PAX TODO || pmd_large(*pmd))
 			break;
 
 		/* should not be large page here */
@@ -540,12 +544,10 @@ void __init early_ioremap_page_table_range_init(void)
 
 static void __init pagetable_init(void)
 {
-	pgd_t *pgd_base = swapper_pg_dir;
-
-	permanent_kmaps_init(pgd_base);
+	permanent_kmaps_init(swapper_pg_dir);
 }
 
-pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
 EXPORT_SYMBOL_GPL(__supported_pte_mask);
 
 /* user-defined highmem size */
@@ -752,6 +754,12 @@ void __init mem_init(void)
 
 	pci_iommu_alloc();
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	clone_pgd_range(get_cpu_pgd(0) + KERNEL_PGD_BOUNDARY,
+			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
+			KERNEL_PGD_PTRS);
+#endif
+
 #ifdef CONFIG_FLATMEM
 	BUG_ON(!mem_map);
 #endif
@@ -780,7 +788,7 @@ void __init mem_init(void)
 	after_bootmem = 1;
 
 	codesize =  (unsigned long) &_etext - (unsigned long) &_text;
-	datasize =  (unsigned long) &_edata - (unsigned long) &_etext;
+	datasize =  (unsigned long) &_edata - (unsigned long) &_sdata;
 	initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
 
 	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, "
@@ -821,10 +829,10 @@ void __init mem_init(void)
 		((unsigned long)&__init_end -
 		 (unsigned long)&__init_begin) >> 10,
 
-		(unsigned long)&_etext, (unsigned long)&_edata,
-		((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
+		(unsigned long)&_sdata, (unsigned long)&_edata,
+		((unsigned long)&_edata - (unsigned long)&_sdata) >> 10,
 
-		(unsigned long)&_text, (unsigned long)&_etext,
+		ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext),
 		((unsigned long)&_etext - (unsigned long)&_text) >> 10);
 
 	/*
@@ -914,6 +922,7 @@ void set_kernel_text_rw(void)
 	if (!kernel_set_to_readonly)
 		return;
 
+	start = ktla_ktva(start);
 	pr_debug("Set kernel text: %lx - %lx for read write\n",
 		 start, start+size);
 
@@ -928,6 +937,7 @@ void set_kernel_text_ro(void)
 	if (!kernel_set_to_readonly)
 		return;
 
+	start = ktla_ktva(start);
 	pr_debug("Set kernel text: %lx - %lx for read only\n",
 		 start, start+size);
 
@@ -956,6 +966,7 @@ void mark_rodata_ro(void)
 	unsigned long start = PFN_ALIGN(_text);
 	unsigned long size = PFN_ALIGN(_etext) - start;
 
+	start = ktla_ktva(start);
 	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
 	printk(KERN_INFO "Write protecting the kernel text: %luk\n",
 		size >> 10);
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 474e28f..647dd12 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -150,7 +150,7 @@ early_param("gbpages", parse_direct_gbpages_on);
  * around without checking the pgd every time.
  */
 
-pteval_t __supported_pte_mask __read_mostly = ~_PAGE_IOMAP;
+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_IOMAP);
 EXPORT_SYMBOL_GPL(__supported_pte_mask);
 
 int force_personality32;
@@ -183,12 +183,22 @@ void sync_global_pgds(unsigned long start, unsigned long end)
 
 	for (address = start; address <= end; address += PGDIR_SIZE) {
 		const pgd_t *pgd_ref = pgd_offset_k(address);
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		unsigned long cpu;
+#else
 		struct page *page;
+#endif
 
 		if (pgd_none(*pgd_ref))
 			continue;
 
 		spin_lock(&pgd_lock);
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
+			pgd_t *pgd = pgd_offset_cpu(cpu, address);
+#else
 		list_for_each_entry(page, &pgd_list, lru) {
 			pgd_t *pgd;
 			spinlock_t *pgt_lock;
@@ -197,6 +207,7 @@ void sync_global_pgds(unsigned long start, unsigned long end)
 			/* the pgt_lock only for Xen */
 			pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
 			spin_lock(pgt_lock);
+#endif
 
 			if (pgd_none(*pgd))
 				set_pgd(pgd, *pgd_ref);
@@ -204,7 +215,10 @@ void sync_global_pgds(unsigned long start, unsigned long end)
 				BUG_ON(pgd_page_vaddr(*pgd)
 				       != pgd_page_vaddr(*pgd_ref));
 
+#ifndef CONFIG_PAX_PER_CPU_PGD
 			spin_unlock(pgt_lock);
+#endif
+
 		}
 		spin_unlock(&pgd_lock);
 	}
@@ -237,7 +251,7 @@ static pud_t *fill_pud(pgd_t *pgd, unsigned long vaddr)
 {
 	if (pgd_none(*pgd)) {
 		pud_t *pud = (pud_t *)spp_getpage();
-		pgd_populate(&init_mm, pgd, pud);
+		pgd_populate_kernel(&init_mm, pgd, pud);
 		if (pud != pud_offset(pgd, 0))
 			printk(KERN_ERR "PAGETABLE BUG #00! %p <-> %p\n",
 			       pud, pud_offset(pgd, 0));
@@ -249,7 +263,7 @@ static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr)
 {
 	if (pud_none(*pud)) {
 		pmd_t *pmd = (pmd_t *) spp_getpage();
-		pud_populate(&init_mm, pud, pmd);
+		pud_populate_kernel(&init_mm, pud, pmd);
 		if (pmd != pmd_offset(pud, 0))
 			printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
 			       pmd, pmd_offset(pud, 0));
@@ -278,7 +292,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte)
 	pmd = fill_pmd(pud, vaddr);
 	pte = fill_pte(pmd, vaddr);
 
+	pax_open_kernel();
 	set_pte(pte, new_pte);
+	pax_close_kernel();
 
 	/*
 	 * It's enough to flush this one mapping.
@@ -337,14 +353,12 @@ static void __init __init_extra_mapping(unsigned long phys, unsigned long size,
 		pgd = pgd_offset_k((unsigned long)__va(phys));
 		if (pgd_none(*pgd)) {
 			pud = (pud_t *) spp_getpage();
-			set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |
-						_PAGE_USER));
+			set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE));
 		}
 		pud = pud_offset(pgd, (unsigned long)__va(phys));
 		if (pud_none(*pud)) {
 			pmd = (pmd_t *) spp_getpage();
-			set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE |
-						_PAGE_USER));
+			set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE));
 		}
 		pmd = pmd_offset(pud, phys);
 		BUG_ON(!pmd_none(*pmd));
@@ -585,7 +599,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
 					      prot);
 
 		spin_lock(&init_mm.page_table_lock);
-		pud_populate(&init_mm, pud, pmd);
+		pud_populate_kernel(&init_mm, pud, pmd);
 		spin_unlock(&init_mm.page_table_lock);
 	}
 	__flush_tlb_all();
@@ -626,7 +640,7 @@ kernel_physical_mapping_init(unsigned long start,
 						 page_size_mask);
 
 		spin_lock(&init_mm.page_table_lock);
-		pgd_populate(&init_mm, pgd, pud);
+		pgd_populate_kernel(&init_mm, pgd, pud);
 		spin_unlock(&init_mm.page_table_lock);
 		pgd_changed = true;
 	}
@@ -1065,6 +1079,12 @@ void __init mem_init(void)
 
 	pci_iommu_alloc();
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	clone_pgd_range(get_cpu_pgd(0) + KERNEL_PGD_BOUNDARY,
+			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
+			KERNEL_PGD_PTRS);
+#endif
+
 	/* clear_bss() already clear the empty_zero_page */
 
 	reservedpages = 0;
@@ -1224,8 +1244,8 @@ int kern_addr_valid(unsigned long addr)
 static struct vm_area_struct gate_vma = {
 	.vm_start	= VSYSCALL_START,
 	.vm_end		= VSYSCALL_START + (VSYSCALL_MAPPED_PAGES * PAGE_SIZE),
-	.vm_page_prot	= PAGE_READONLY_EXEC,
-	.vm_flags	= VM_READ | VM_EXEC
+	.vm_page_prot	= PAGE_READONLY,
+	.vm_flags	= VM_READ
 };
 
 struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
@@ -1259,7 +1279,7 @@ int in_gate_area_no_mm(unsigned long addr)
 
 const char *arch_vma_name(struct vm_area_struct *vma)
 {
-	if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
+	if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
 		return "[vdso]";
 	if (vma == &gate_vma)
 		return "[vsyscall]";
diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
index 7b179b4..6bd17777 100644
--- a/arch/x86/mm/iomap_32.c
+++ b/arch/x86/mm/iomap_32.c
@@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
 	type = kmap_atomic_idx_push();
 	idx = type + KM_TYPE_NR * smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+
+	pax_open_kernel();
 	set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
+	pax_close_kernel();
+
 	arch_flush_lazy_mmu_mode();
 
 	return (void *)vaddr;
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 78fe3f1..73b95e2 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -97,7 +97,7 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
 	for (pfn = phys_addr >> PAGE_SHIFT; pfn <= last_pfn; pfn++) {
 		int is_ram = page_is_ram(pfn);
 
-		if (is_ram && pfn_valid(pfn) && !PageReserved(pfn_to_page(pfn)))
+		if (is_ram && pfn_valid(pfn) && (pfn >= 0x100 || !PageReserved(pfn_to_page(pfn))))
 			return NULL;
 		WARN_ON_ONCE(is_ram);
 	}
@@ -256,7 +256,7 @@ EXPORT_SYMBOL(ioremap_prot);
  *
  * Caller must ensure there is only one unmapping for the same pointer.
  */
-void iounmap(volatile void __iomem *addr)
+void iounmap(const volatile void __iomem *addr)
 {
 	struct vm_struct *p, *o;
 
@@ -315,6 +315,9 @@ void *xlate_dev_mem_ptr(unsigned long phys)
 
 	/* If page is RAM, we can use __va. Otherwise ioremap and unmap. */
 	if (page_is_ram(start >> PAGE_SHIFT))
+#ifdef CONFIG_HIGHMEM
+	if ((start >> PAGE_SHIFT) < max_low_pfn)
+#endif
 		return __va(phys);
 
 	addr = (void __force *)ioremap_cache(start, PAGE_SIZE);
@@ -327,6 +330,9 @@ void *xlate_dev_mem_ptr(unsigned long phys)
 void unxlate_dev_mem_ptr(unsigned long phys, void *addr)
 {
 	if (page_is_ram(phys >> PAGE_SHIFT))
+#ifdef CONFIG_HIGHMEM
+	if ((phys >> PAGE_SHIFT) < max_low_pfn)
+#endif
 		return;
 
 	iounmap((void __iomem *)((unsigned long)addr & PAGE_MASK));
@@ -344,7 +350,7 @@ static int __init early_ioremap_debug_setup(char *str)
 early_param("early_ioremap_debug", early_ioremap_debug_setup);
 
 static __initdata int after_paging_init;
-static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
+static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __read_only __aligned(PAGE_SIZE);
 
 static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
 {
@@ -381,8 +387,7 @@ void __init early_ioremap_init(void)
 		slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i);
 
 	pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
-	memset(bm_pte, 0, sizeof(bm_pte));
-	pmd_populate_kernel(&init_mm, pmd, bm_pte);
+	pmd_populate_user(&init_mm, pmd, bm_pte);
 
 	/*
 	 * The boot-ioremap range spans multiple pmds, for which
diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c
index d87dd6d..bf3fa66 100644
--- a/arch/x86/mm/kmemcheck/kmemcheck.c
+++ b/arch/x86/mm/kmemcheck/kmemcheck.c
@@ -622,9 +622,9 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address,
 	 * memory (e.g. tracked pages)? For now, we need this to avoid
 	 * invoking kmemcheck for PnP BIOS calls.
 	 */
-	if (regs->flags & X86_VM_MASK)
+	if (v8086_mode(regs))
 		return false;
-	if (regs->cs != __KERNEL_CS)
+	if (regs->cs != __KERNEL_CS && regs->cs != __KERNEXEC_KERNEL_CS)
 		return false;
 
 	pte = kmemcheck_pte_lookup(address);
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 845df68..1d8d29f 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -52,7 +52,7 @@ static unsigned int stack_maxrandom_size(void)
  * Leave an at least ~128 MB hole with possible stack randomization.
  */
 #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size())
-#define MAX_GAP (TASK_SIZE/6*5)
+#define MAX_GAP (pax_task_size/6*5)
 
 static int mmap_is_legacy(void)
 {
@@ -82,27 +82,40 @@ static unsigned long mmap_rnd(void)
 	return rnd << PAGE_SHIFT;
 }
 
-static unsigned long mmap_base(void)
+static unsigned long mmap_base(struct mm_struct *mm)
 {
 	unsigned long gap = rlimit(RLIMIT_STACK);
+	unsigned long pax_task_size = TASK_SIZE;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
 
 	if (gap < MIN_GAP)
 		gap = MIN_GAP;
 	else if (gap > MAX_GAP)
 		gap = MAX_GAP;
 
-	return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
+	return PAGE_ALIGN(pax_task_size - gap - mmap_rnd());
 }
 
 /*
  * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
  * does, but not when emulating X86_32
  */
-static unsigned long mmap_legacy_base(void)
+static unsigned long mmap_legacy_base(struct mm_struct *mm)
 {
-	if (mmap_is_ia32())
+	if (mmap_is_ia32()) {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if (mm->pax_flags & MF_PAX_SEGMEXEC)
+			return SEGMEXEC_TASK_UNMAPPED_BASE;
+		else
+#endif
+
 		return TASK_UNMAPPED_BASE;
-	else
+	} else
 		return TASK_UNMAPPED_BASE + mmap_rnd();
 }
 
@@ -113,11 +126,23 @@ static unsigned long mmap_legacy_base(void)
 void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	if (mmap_is_legacy()) {
-		mm->mmap_base = mmap_legacy_base();
+		mm->mmap_base = mmap_legacy_base(mm);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area;
 		mm->unmap_area = arch_unmap_area;
 	} else {
-		mm->mmap_base = mmap_base();
+		mm->mmap_base = mmap_base(mm);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 		mm->unmap_area = arch_unmap_area_topdown;
 	}
diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
index dc0b727..f612039 100644
--- a/arch/x86/mm/mmio-mod.c
+++ b/arch/x86/mm/mmio-mod.c
@@ -194,7 +194,7 @@ static void pre(struct kmmio_probe *p, struct pt_regs *regs,
 		break;
 	default:
 		{
-			unsigned char *ip = (unsigned char *)instptr;
+			unsigned char *ip = (unsigned char *)ktla_ktva(instptr);
 			my_trace->opcode = MMIO_UNKNOWN_OP;
 			my_trace->width = 0;
 			my_trace->value = (*ip) << 16 | *(ip + 1) << 8 |
@@ -234,7 +234,7 @@ static void post(struct kmmio_probe *p, unsigned long condition,
 static void ioremap_trace_core(resource_size_t offset, unsigned long size,
 							void __iomem *addr)
 {
-	static atomic_t next_id;
+	static atomic_unchecked_t next_id;
 	struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL);
 	/* These are page-unaligned. */
 	struct mmiotrace_map map = {
@@ -258,7 +258,7 @@ static void ioremap_trace_core(resource_size_t offset, unsigned long size,
 			.private = trace
 		},
 		.phys = offset,
-		.id = atomic_inc_return(&next_id)
+		.id = atomic_inc_return_unchecked(&next_id)
 	};
 	map.map_id = trace->id;
 
@@ -290,7 +290,7 @@ void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
 	ioremap_trace_core(offset, size, addr);
 }
 
-static void iounmap_trace_core(volatile void __iomem *addr)
+static void iounmap_trace_core(const volatile void __iomem *addr)
 {
 	struct mmiotrace_map map = {
 		.phys = 0,
@@ -328,7 +328,7 @@ not_enabled:
 	}
 }
 
-void mmiotrace_iounmap(volatile void __iomem *addr)
+void mmiotrace_iounmap(const volatile void __iomem *addr)
 {
 	might_sleep();
 	if (is_enabled()) /* recheck and proper locking in *_core() */
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 72fe01e..f1a8daa 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -477,7 +477,7 @@ static bool __init numa_meminfo_cover_memory(const struct numa_meminfo *mi)
 	return true;
 }
 
-static int __init numa_register_memblks(struct numa_meminfo *mi)
+static int __init __intentional_overflow(-1) numa_register_memblks(struct numa_meminfo *mi)
 {
 	unsigned long uninitialized_var(pfn_align);
 	int i, nid;
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 0e38951..4ca8458 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -36,7 +36,7 @@ enum {
 
 static int pte_testbit(pte_t pte)
 {
-	return pte_flags(pte) & _PAGE_UNUSED1;
+	return pte_flags(pte) & _PAGE_CPA_TEST;
 }
 
 struct split_state {
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index fb4e73e..43f7238 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -261,7 +261,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
 	 */
 #ifdef CONFIG_PCI_BIOS
 	if (pcibios_enabled && within(pfn, BIOS_BEGIN >> PAGE_SHIFT, BIOS_END >> PAGE_SHIFT))
-		pgprot_val(forbidden) |= _PAGE_NX;
+		pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
 #endif
 
 	/*
@@ -269,9 +269,10 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
 	 * Does not cover __inittext since that is gone later on. On
 	 * 64bit we do not enforce !NX on the low mapping
 	 */
-	if (within(address, (unsigned long)_text, (unsigned long)_etext))
-		pgprot_val(forbidden) |= _PAGE_NX;
+	if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext)))
+		pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
 
+#ifdef CONFIG_DEBUG_RODATA
 	/*
 	 * The .rodata section needs to be read-only. Using the pfn
 	 * catches all aliases.
@@ -279,6 +280,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
 	if (within(pfn, __pa_symbol(__start_rodata) >> PAGE_SHIFT,
 		   __pa_symbol(__end_rodata) >> PAGE_SHIFT))
 		pgprot_val(forbidden) |= _PAGE_RW;
+#endif
 
 #if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA)
 	/*
@@ -317,6 +319,13 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
 	}
 #endif
 
+#ifdef CONFIG_PAX_KERNEXEC
+	if (within(pfn, __pa(ktla_ktva((unsigned long)&_text)), __pa((unsigned long)&_sdata))) {
+		pgprot_val(forbidden) |= _PAGE_RW;
+		pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
+	}
+#endif
+
 	prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));
 
 	return prot;
@@ -400,23 +409,37 @@ EXPORT_SYMBOL_GPL(slow_virt_to_phys);
 static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 {
 	/* change init_mm */
+	pax_open_kernel();
 	set_pte_atomic(kpte, pte);
+
 #ifdef CONFIG_X86_32
 	if (!SHARED_KERNEL_PMD) {
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		unsigned long cpu;
+#else
 		struct page *page;
+#endif
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
+			pgd_t *pgd = get_cpu_pgd(cpu);
+#else
 		list_for_each_entry(page, &pgd_list, lru) {
-			pgd_t *pgd;
+			pgd_t *pgd = (pgd_t *)page_address(page);
+#endif
+
 			pud_t *pud;
 			pmd_t *pmd;
 
-			pgd = (pgd_t *)page_address(page) + pgd_index(address);
+			pgd += pgd_index(address);
 			pud = pud_offset(pgd, address);
 			pmd = pmd_offset(pud, address);
 			set_pte_atomic((pte_t *)pmd, pte);
 		}
 	}
 #endif
+	pax_close_kernel();
 }
 
 static int
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 6574388..87e9bef 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -376,7 +376,7 @@ int free_memtype(u64 start, u64 end)
 
 	if (!entry) {
 		printk(KERN_INFO "%s:%d freeing invalid memtype [mem %#010Lx-%#010Lx]\n",
-		       current->comm, current->pid, start, end - 1);
+			current->comm, task_pid_nr(current), start, end - 1);
 		return -EINVAL;
 	}
 
@@ -506,8 +506,8 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 
 	while (cursor < to) {
 		if (!devmem_is_allowed(pfn)) {
-			printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx]\n",
-				current->comm, from, to - 1);
+			printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx] (%#010Lx)\n",
+				current->comm, from, to - 1, cursor);
 			return 0;
 		}
 		cursor += PAGE_SIZE;
@@ -577,7 +577,7 @@ int kernel_map_sync_memtype(u64 base, unsigned long size, unsigned long flags)
 	if (ioremap_change_attr((unsigned long)__va(base), id_sz, flags) < 0) {
 		printk(KERN_INFO "%s:%d ioremap_change_attr failed %s "
 			"for [mem %#010Lx-%#010Lx]\n",
-			current->comm, current->pid,
+			current->comm, task_pid_nr(current),
 			cattr_name(flags),
 			base, (unsigned long long)(base + size-1));
 		return -EINVAL;
@@ -612,7 +612,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
 		flags = lookup_memtype(paddr);
 		if (want_flags != flags) {
 			printk(KERN_WARNING "%s:%d map pfn RAM range req %s for [mem %#010Lx-%#010Lx], got %s\n",
-				current->comm, current->pid,
+				current->comm, task_pid_nr(current),
 				cattr_name(want_flags),
 				(unsigned long long)paddr,
 				(unsigned long long)(paddr + size - 1),
@@ -634,7 +634,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
 			free_memtype(paddr, paddr + size);
 			printk(KERN_ERR "%s:%d map pfn expected mapping type %s"
 				" for [mem %#010Lx-%#010Lx], got %s\n",
-				current->comm, current->pid,
+				current->comm, task_pid_nr(current),
 				cattr_name(want_flags),
 				(unsigned long long)paddr,
 				(unsigned long long)(paddr + size - 1),
diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c
index 9f0614d..92ae64a 100644
--- a/arch/x86/mm/pf_in.c
+++ b/arch/x86/mm/pf_in.c
@@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned long ins_addr)
 	int i;
 	enum reason_type rv = OTHERS;
 
-	p = (unsigned char *)ins_addr;
+	p = (unsigned char *)ktla_ktva(ins_addr);
 	p += skip_prefix(p, &prf);
 	p += get_opcode(p, &opcode);
 
@@ -168,7 +168,7 @@ static unsigned int get_ins_reg_width(unsigned long ins_addr)
 	struct prefix_bits prf;
 	int i;
 
-	p = (unsigned char *)ins_addr;
+	p = (unsigned char *)ktla_ktva(ins_addr);
 	p += skip_prefix(p, &prf);
 	p += get_opcode(p, &opcode);
 
@@ -191,7 +191,7 @@ unsigned int get_ins_mem_width(unsigned long ins_addr)
 	struct prefix_bits prf;
 	int i;
 
-	p = (unsigned char *)ins_addr;
+	p = (unsigned char *)ktla_ktva(ins_addr);
 	p += skip_prefix(p, &prf);
 	p += get_opcode(p, &opcode);
 
@@ -415,7 +415,7 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
 	struct prefix_bits prf;
 	int i;
 
-	p = (unsigned char *)ins_addr;
+	p = (unsigned char *)ktla_ktva(ins_addr);
 	p += skip_prefix(p, &prf);
 	p += get_opcode(p, &opcode);
 	for (i = 0; i < ARRAY_SIZE(reg_rop); i++)
@@ -470,7 +470,7 @@ unsigned long get_ins_imm_val(unsigned long ins_addr)
 	struct prefix_bits prf;
 	int i;
 
-	p = (unsigned char *)ins_addr;
+	p = (unsigned char *)ktla_ktva(ins_addr);
 	p += skip_prefix(p, &prf);
 	p += get_opcode(p, &opcode);
 	for (i = 0; i < ARRAY_SIZE(imm_wop); i++)
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 17fda6a..489c74a 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -91,10 +91,64 @@ static inline void pgd_list_del(pgd_t *pgd)
 	list_del(&page->lru);
 }
 
-#define UNSHARED_PTRS_PER_PGD				\
-	(SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+pgdval_t clone_pgd_mask __read_only = ~_PAGE_PRESENT;
 
+void __shadow_user_pgds(pgd_t *dst, const pgd_t *src)
+{
+	unsigned int count = USER_PGD_PTRS;
 
+	while (count--)
+		*dst++ = __pgd((pgd_val(*src++) | (_PAGE_NX & __supported_pte_mask)) & ~_PAGE_USER);
+}
+#endif
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+void __clone_user_pgds(pgd_t *dst, const pgd_t *src)
+{
+	unsigned int count = USER_PGD_PTRS;
+
+	while (count--) {
+		pgd_t pgd;
+
+#ifdef CONFIG_X86_64
+		pgd = __pgd(pgd_val(*src++) | _PAGE_USER);
+#else
+		pgd = *src++;
+#endif
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+		pgd = __pgd(pgd_val(pgd) & clone_pgd_mask);
+#endif
+
+		*dst++ = pgd;
+	}
+
+}
+#endif
+
+#ifdef CONFIG_X86_64
+#define pxd_t				pud_t
+#define pyd_t				pgd_t
+#define paravirt_release_pxd(pfn)	paravirt_release_pud(pfn)
+#define pxd_free(mm, pud)		pud_free((mm), (pud))
+#define pyd_populate(mm, pgd, pud)	pgd_populate((mm), (pgd), (pud))
+#define pyd_offset(mm, address)		pgd_offset((mm), (address))
+#define PYD_SIZE			PGDIR_SIZE
+#else
+#define pxd_t				pmd_t
+#define pyd_t				pud_t
+#define paravirt_release_pxd(pfn)	paravirt_release_pmd(pfn)
+#define pxd_free(mm, pud)		pmd_free((mm), (pud))
+#define pyd_populate(mm, pgd, pud)	pud_populate((mm), (pgd), (pud))
+#define pyd_offset(mm, address)		pud_offset((mm), (address))
+#define PYD_SIZE			PUD_SIZE
+#endif
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+static inline void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) {}
+static inline void pgd_dtor(pgd_t *pgd) {}
+#else
 static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm)
 {
 	BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm));
@@ -135,6 +189,7 @@ static void pgd_dtor(pgd_t *pgd)
 	pgd_list_del(pgd);
 	spin_unlock(&pgd_lock);
 }
+#endif
 
 /*
  * List of all pgd's needed for non-PAE so it can invalidate entries
@@ -147,7 +202,7 @@ static void pgd_dtor(pgd_t *pgd)
  * -- nyc
  */
 
-#ifdef CONFIG_X86_PAE
+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
 /*
  * In PAE mode, we need to do a cr3 reload (=tlb flush) when
  * updating the top-level pagetable entries to guarantee the
@@ -159,7 +214,7 @@ static void pgd_dtor(pgd_t *pgd)
  * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
  * and initialize the kernel pmds here.
  */
-#define PREALLOCATED_PMDS	UNSHARED_PTRS_PER_PGD
+#define PREALLOCATED_PXDS	(SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
 
 void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
 {
@@ -177,36 +232,38 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
 	 */
 	flush_tlb_mm(mm);
 }
+#elif defined(CONFIG_X86_64) && defined(CONFIG_PAX_PER_CPU_PGD)
+#define PREALLOCATED_PXDS	USER_PGD_PTRS
 #else  /* !CONFIG_X86_PAE */
 
 /* No need to prepopulate any pagetable entries in non-PAE modes. */
-#define PREALLOCATED_PMDS	0
+#define PREALLOCATED_PXDS	0
 
 #endif	/* CONFIG_X86_PAE */
 
-static void free_pmds(pmd_t *pmds[])
+static void free_pxds(pxd_t *pxds[])
 {
 	int i;
 
-	for(i = 0; i < PREALLOCATED_PMDS; i++)
-		if (pmds[i])
-			free_page((unsigned long)pmds[i]);
+	for(i = 0; i < PREALLOCATED_PXDS; i++)
+		if (pxds[i])
+			free_page((unsigned long)pxds[i]);
 }
 
-static int preallocate_pmds(pmd_t *pmds[])
+static int preallocate_pxds(pxd_t *pxds[])
 {
 	int i;
 	bool failed = false;
 
-	for(i = 0; i < PREALLOCATED_PMDS; i++) {
-		pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP);
-		if (pmd == NULL)
+	for(i = 0; i < PREALLOCATED_PXDS; i++) {
+		pxd_t *pxd = (pxd_t *)__get_free_page(PGALLOC_GFP);
+		if (pxd == NULL)
 			failed = true;
-		pmds[i] = pmd;
+		pxds[i] = pxd;
 	}
 
 	if (failed) {
-		free_pmds(pmds);
+		free_pxds(pxds);
 		return -ENOMEM;
 	}
 
@@ -219,51 +276,55 @@ static int preallocate_pmds(pmd_t *pmds[])
  * preallocate which never got a corresponding vma will need to be
  * freed manually.
  */
-static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
+static void pgd_mop_up_pxds(struct mm_struct *mm, pgd_t *pgdp)
 {
 	int i;
 
-	for(i = 0; i < PREALLOCATED_PMDS; i++) {
+	for(i = 0; i < PREALLOCATED_PXDS; i++) {
 		pgd_t pgd = pgdp[i];
 
 		if (pgd_val(pgd) != 0) {
-			pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);
+			pxd_t *pxd = (pxd_t *)pgd_page_vaddr(pgd);
 
-			pgdp[i] = native_make_pgd(0);
+			set_pgd(pgdp + i, native_make_pgd(0));
 
-			paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT);
-			pmd_free(mm, pmd);
+			paravirt_release_pxd(pgd_val(pgd) >> PAGE_SHIFT);
+			pxd_free(mm, pxd);
 		}
 	}
 }
 
-static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
+static void pgd_prepopulate_pxd(struct mm_struct *mm, pgd_t *pgd, pxd_t *pxds[])
 {
-	pud_t *pud;
+	pyd_t *pyd;
 	unsigned long addr;
 	int i;
 
-	if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */
+	if (PREALLOCATED_PXDS == 0) /* Work around gcc-3.4.x bug */
 		return;
 
-	pud = pud_offset(pgd, 0);
+#ifdef CONFIG_X86_64
+	pyd = pyd_offset(mm, 0L);
+#else
+	pyd = pyd_offset(pgd, 0L);
+#endif
 
- 	for (addr = i = 0; i < PREALLOCATED_PMDS;
-	     i++, pud++, addr += PUD_SIZE) {
-		pmd_t *pmd = pmds[i];
+ 	for (addr = i = 0; i < PREALLOCATED_PXDS;
+	     i++, pyd++, addr += PYD_SIZE) {
+		pxd_t *pxd = pxds[i];
 
 		if (i >= KERNEL_PGD_BOUNDARY)
-			memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
-			       sizeof(pmd_t) * PTRS_PER_PMD);
+			memcpy(pxd, (pxd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
+			       sizeof(pxd_t) * PTRS_PER_PMD);
 
-		pud_populate(mm, pud, pmd);
+		pyd_populate(mm, pyd, pxd);
 	}
 }
 
 pgd_t *pgd_alloc(struct mm_struct *mm)
 {
 	pgd_t *pgd;
-	pmd_t *pmds[PREALLOCATED_PMDS];
+	pxd_t *pxds[PREALLOCATED_PXDS];
 
 	pgd = (pgd_t *)__get_free_page(PGALLOC_GFP);
 
@@ -272,11 +333,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 
 	mm->pgd = pgd;
 
-	if (preallocate_pmds(pmds) != 0)
+	if (preallocate_pxds(pxds) != 0)
 		goto out_free_pgd;
 
 	if (paravirt_pgd_alloc(mm) != 0)
-		goto out_free_pmds;
+		goto out_free_pxds;
 
 	/*
 	 * Make sure that pre-populating the pmds is atomic with
@@ -286,14 +347,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 	spin_lock(&pgd_lock);
 
 	pgd_ctor(mm, pgd);
-	pgd_prepopulate_pmd(mm, pgd, pmds);
+	pgd_prepopulate_pxd(mm, pgd, pxds);
 
 	spin_unlock(&pgd_lock);
 
 	return pgd;
 
-out_free_pmds:
-	free_pmds(pmds);
+out_free_pxds:
+	free_pxds(pxds);
 out_free_pgd:
 	free_page((unsigned long)pgd);
 out:
@@ -302,7 +363,7 @@ out:
 
 void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 {
-	pgd_mop_up_pmds(mm, pgd);
+	pgd_mop_up_pxds(mm, pgd);
 	pgd_dtor(pgd);
 	paravirt_pgd_free(mm, pgd);
 	free_page((unsigned long)pgd);
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index a69bcb8..19068ab 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -47,10 +47,13 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval)
 		return;
 	}
 	pte = pte_offset_kernel(pmd, vaddr);
+
+	pax_open_kernel();
 	if (pte_val(pteval))
 		set_pte_at(&init_mm, vaddr, pte, pteval);
 	else
 		pte_clear(&init_mm, vaddr, pte);
+	pax_close_kernel();
 
 	/*
 	 * It's enough to flush this one mapping.
diff --git a/arch/x86/mm/physaddr.c b/arch/x86/mm/physaddr.c
index e666cbb..61788c45 100644
--- a/arch/x86/mm/physaddr.c
+++ b/arch/x86/mm/physaddr.c
@@ -10,7 +10,7 @@
 #ifdef CONFIG_X86_64
 
 #ifdef CONFIG_DEBUG_VIRTUAL
-unsigned long __phys_addr(unsigned long x)
+unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
 {
 	unsigned long y = x - __START_KERNEL_map;
 
@@ -67,7 +67,7 @@ EXPORT_SYMBOL(__virt_addr_valid);
 #else
 
 #ifdef CONFIG_DEBUG_VIRTUAL
-unsigned long __phys_addr(unsigned long x)
+unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
 {
 	unsigned long phys_addr = x - PAGE_OFFSET;
 	/* VMALLOC_* aren't constants  */
diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c
index 410531d..0f16030 100644
--- a/arch/x86/mm/setup_nx.c
+++ b/arch/x86/mm/setup_nx.c
@@ -5,8 +5,10 @@
 #include <asm/pgtable.h>
 #include <asm/proto.h>
 
+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
 static int disable_nx __cpuinitdata;
 
+#ifndef CONFIG_PAX_PAGEEXEC
 /*
  * noexec = on|off
  *
@@ -28,12 +30,17 @@ static int __init noexec_setup(char *str)
 	return 0;
 }
 early_param("noexec", noexec_setup);
+#endif
+
+#endif
 
 void __cpuinit x86_configure_nx(void)
 {
+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
 	if (cpu_has_nx && !disable_nx)
 		__supported_pte_mask |= _PAGE_NX;
 	else
+#endif
 		__supported_pte_mask &= ~_PAGE_NX;
 }
 
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 282375f..e03a98f 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -48,7 +48,11 @@ void leave_mm(int cpu)
 		BUG();
 	if (cpumask_test_cpu(cpu, mm_cpumask(active_mm))) {
 		cpumask_clear_cpu(cpu, mm_cpumask(active_mm));
+
+#ifndef CONFIG_PAX_PER_CPU_PGD
 		load_cr3(swapper_pg_dir);
+#endif
+
 	}
 }
 EXPORT_SYMBOL_GPL(leave_mm);
diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S
index 877b9a1..a8ecf42 100644
--- a/arch/x86/net/bpf_jit.S
+++ b/arch/x86/net/bpf_jit.S
@@ -9,6 +9,7 @@
  */
 #include <linux/linkage.h>
 #include <asm/dwarf2.h>
+#include <asm/alternative-asm.h>
 
 /*
  * Calling convention :
@@ -35,6 +36,7 @@ sk_load_word_positive_offset:
 	jle	bpf_slow_path_word
 	mov     (SKBDATA,%rsi),%eax
 	bswap   %eax  			/* ntohl() */
+	pax_force_retaddr
 	ret
 
 sk_load_half:
@@ -52,6 +54,7 @@ sk_load_half_positive_offset:
 	jle	bpf_slow_path_half
 	movzwl	(SKBDATA,%rsi),%eax
 	rol	$8,%ax			# ntohs()
+	pax_force_retaddr
 	ret
 
 sk_load_byte:
@@ -66,6 +69,7 @@ sk_load_byte_positive_offset:
 	cmp	%esi,%r9d   /* if (offset >= hlen) goto bpf_slow_path_byte */
 	jle	bpf_slow_path_byte
 	movzbl	(SKBDATA,%rsi),%eax
+	pax_force_retaddr
 	ret
 
 /**
@@ -87,6 +91,7 @@ sk_load_byte_msh_positive_offset:
 	movzbl	(SKBDATA,%rsi),%ebx
 	and	$15,%bl
 	shl	$2,%bl
+	pax_force_retaddr
 	ret
 
 /* rsi contains offset and can be scratched */
@@ -109,6 +114,7 @@ bpf_slow_path_word:
 	js	bpf_error
 	mov	-12(%rbp),%eax
 	bswap	%eax
+	pax_force_retaddr
 	ret
 
 bpf_slow_path_half:
@@ -117,12 +123,14 @@ bpf_slow_path_half:
 	mov	-12(%rbp),%ax
 	rol	$8,%ax
 	movzwl	%ax,%eax
+	pax_force_retaddr
 	ret
 
 bpf_slow_path_byte:
 	bpf_slow_path_common(1)
 	js	bpf_error
 	movzbl	-12(%rbp),%eax
+	pax_force_retaddr
 	ret
 
 bpf_slow_path_byte_msh:
@@ -133,6 +141,7 @@ bpf_slow_path_byte_msh:
 	and	$15,%al
 	shl	$2,%al
 	xchg	%eax,%ebx
+	pax_force_retaddr
 	ret
 
 #define sk_negative_common(SIZE)				\
@@ -157,6 +166,7 @@ sk_load_word_negative_offset:
 	sk_negative_common(4)
 	mov	(%rax), %eax
 	bswap	%eax
+	pax_force_retaddr
 	ret
 
 bpf_slow_path_half_neg:
@@ -168,6 +178,7 @@ sk_load_half_negative_offset:
 	mov	(%rax),%ax
 	rol	$8,%ax
 	movzwl	%ax,%eax
+	pax_force_retaddr
 	ret
 
 bpf_slow_path_byte_neg:
@@ -177,6 +188,7 @@ sk_load_byte_negative_offset:
 	.globl	sk_load_byte_negative_offset
 	sk_negative_common(1)
 	movzbl	(%rax), %eax
+	pax_force_retaddr
 	ret
 
 bpf_slow_path_byte_msh_neg:
@@ -190,6 +202,7 @@ sk_load_byte_msh_negative_offset:
 	and	$15,%al
 	shl	$2,%al
 	xchg	%eax,%ebx
+	pax_force_retaddr
 	ret
 
 bpf_error:
@@ -197,4 +210,5 @@ bpf_error:
 	xor		%eax,%eax
 	mov		-8(%rbp),%rbx
 	leaveq
+	pax_force_retaddr
 	ret
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 3cbe4538..003d011 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -12,6 +12,7 @@
 #include <linux/netdevice.h>
 #include <linux/filter.h>
 #include <linux/if_vlan.h>
+#include <linux/random.h>
 
 /*
  * Conventions :
@@ -49,13 +50,90 @@ static inline u8 *emit_code(u8 *ptr, u32 bytes, unsigned int len)
 	return ptr + len;
 }
 
+#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
+#define MAX_INSTR_CODE_SIZE 96
+#else
+#define MAX_INSTR_CODE_SIZE 64
+#endif
+
 #define EMIT(bytes, len)	do { prog = emit_code(prog, bytes, len); } while (0)
 
 #define EMIT1(b1)		EMIT(b1, 1)
 #define EMIT2(b1, b2)		EMIT((b1) + ((b2) << 8), 2)
 #define EMIT3(b1, b2, b3)	EMIT((b1) + ((b2) << 8) + ((b3) << 16), 3)
 #define EMIT4(b1, b2, b3, b4)   EMIT((b1) + ((b2) << 8) + ((b3) << 16) + ((b4) << 24), 4)
+
+#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
+/* original constant will appear in ecx */
+#define DILUTE_CONST_SEQUENCE(_off, _key) 	\
+do {						\
+	/* mov ecx, randkey */			\
+	EMIT1(0xb9);				\
+	EMIT(_key, 4);				\
+	/* xor ecx, randkey ^ off */		\
+	EMIT2(0x81, 0xf1);			\
+	EMIT((_key) ^ (_off), 4);		\
+} while (0)
+
+#define EMIT1_off32(b1, _off)								\
+do { 											\
+	switch (b1) {									\
+		case 0x05: /* add eax, imm32 */						\
+		case 0x2d: /* sub eax, imm32 */						\
+		case 0x25: /* and eax, imm32 */						\
+		case 0x0d: /* or eax, imm32 */						\
+		case 0xb8: /* mov eax, imm32 */						\
+		case 0x35: /* xor eax, imm32 */						\
+		case 0x3d: /* cmp eax, imm32 */						\
+		case 0xa9: /* test eax, imm32 */					\
+			DILUTE_CONST_SEQUENCE(_off, randkey);				\
+			EMIT2((b1) - 4, 0xc8); /* convert imm instruction to eax, ecx */\
+			break;								\
+		case 0xbb: /* mov ebx, imm32 */						\
+			DILUTE_CONST_SEQUENCE(_off, randkey);				\
+			/* mov ebx, ecx */						\
+			EMIT2(0x89, 0xcb);						\
+			break;								\
+		case 0xbe: /* mov esi, imm32 */						\
+			DILUTE_CONST_SEQUENCE(_off, randkey);				\
+			/* mov esi, ecx	*/						\
+			EMIT2(0x89, 0xce);						\
+			break;								\
+		case 0xe8: /* call rel imm32, always to known funcs */			\
+			EMIT1(b1);							\
+			EMIT(_off, 4);							\
+			break;								\
+		case 0xe9: /* jmp rel imm32 */						\
+			EMIT1(b1);							\
+			EMIT(_off, 4);							\
+			/* prevent fall-through, we're not called if off = 0 */		\
+			EMIT(0xcccccccc, 4);						\
+			EMIT(0xcccccccc, 4);						\
+			break;								\
+		default:								\
+			BUILD_BUG();							\
+	}										\
+} while (0)
+
+#define EMIT2_off32(b1, b2, _off) 					\
+do { 									\
+	if ((b1) == 0x8d && (b2) == 0xb3) { /* lea esi, [rbx+imm32] */	\
+		EMIT2(0x8d, 0xb3); /* lea esi, [rbx+randkey] */		\
+		EMIT(randkey, 4);					\
+		EMIT2(0x8d, 0xb6); /* lea esi, [esi+off-randkey] */	\
+		EMIT((_off) - randkey, 4);				\
+	} else if ((b1) == 0x69 && (b2) == 0xc0) { /* imul eax, imm32 */\
+		DILUTE_CONST_SEQUENCE(_off, randkey);			\
+		/* imul eax, ecx */					\
+		EMIT3(0x0f, 0xaf, 0xc1);				\
+	} else {							\
+		BUILD_BUG();						\
+	}								\
+} while (0)
+#else
 #define EMIT1_off32(b1, off)	do { EMIT1(b1); EMIT(off, 4);} while (0)
+#define EMIT2_off32(b1, b2, off) do { EMIT2(b1, b2); EMIT(off, 4);} while (0)
+#endif
 
 #define CLEAR_A() EMIT2(0x31, 0xc0) /* xor %eax,%eax */
 #define CLEAR_X() EMIT2(0x31, 0xdb) /* xor %ebx,%ebx */
@@ -90,6 +168,24 @@ do {									\
 #define X86_JBE 0x76
 #define X86_JA  0x77
 
+#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
+#define APPEND_FLOW_VERIFY()	\
+do {				\
+	/* mov ecx, randkey */	\
+	EMIT1(0xb9);		\
+	EMIT(randkey, 4);	\
+	/* cmp ecx, randkey */	\
+	EMIT2(0x81, 0xf9);	\
+	EMIT(randkey, 4);	\
+	/* jz after 8 int 3s */ \
+	EMIT2(0x74, 0x08);	\
+	EMIT(0xcccccccc, 4);	\
+	EMIT(0xcccccccc, 4);	\
+} while (0)
+#else
+#define APPEND_FLOW_VERIFY() do { } while (0)
+#endif
+
 #define EMIT_COND_JMP(op, offset)				\
 do {								\
 	if (is_near(offset))					\
@@ -97,6 +193,7 @@ do {								\
 	else {							\
 		EMIT2(0x0f, op + 0x10);				\
 		EMIT(offset, 4); /* jxx .+off32 */		\
+		APPEND_FLOW_VERIFY();				\
 	}							\
 } while (0)
 
@@ -121,6 +218,11 @@ static inline void bpf_flush_icache(void *start, void *end)
 	set_fs(old_fs);
 }
 
+struct bpf_jit_work {
+	struct work_struct work;
+	void *image;
+};
+
 #define CHOOSE_LOAD_FUNC(K, func) \
 	((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset)
 
@@ -146,7 +248,7 @@ static int pkt_type_offset(void)
 
 void bpf_jit_compile(struct sk_filter *fp)
 {
-	u8 temp[64];
+	u8 temp[MAX_INSTR_CODE_SIZE];
 	u8 *prog;
 	unsigned int proglen, oldproglen = 0;
 	int ilen, i;
@@ -159,6 +261,9 @@ void bpf_jit_compile(struct sk_filter *fp)
 	unsigned int *addrs;
 	const struct sock_filter *filter = fp->insns;
 	int flen = fp->len;
+#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
+	unsigned int randkey;
+#endif
 
 	if (!bpf_jit_enable)
 		return;
@@ -167,11 +272,19 @@ void bpf_jit_compile(struct sk_filter *fp)
 	if (addrs == NULL)
 		return;
 
+	fp->work = kmalloc(sizeof(*fp->work), GFP_KERNEL);
+	if (!fp->work)
+		goto out;
+
+#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
+	randkey = get_random_int();
+#endif
+
 	/* Before first pass, make a rough estimation of addrs[]
-	 * each bpf instruction is translated to less than 64 bytes
+	 * each bpf instruction is translated to less than MAX_INSTR_CODE_SIZE bytes
 	 */
 	for (proglen = 0, i = 0; i < flen; i++) {
-		proglen += 64;
+		proglen += MAX_INSTR_CODE_SIZE;
 		addrs[i] = proglen;
 	}
 	cleanup_addr = proglen; /* epilogue address */
@@ -282,10 +395,8 @@ void bpf_jit_compile(struct sk_filter *fp)
 			case BPF_S_ALU_MUL_K: /* A *= K */
 				if (is_imm8(K))
 					EMIT3(0x6b, 0xc0, K); /* imul imm8,%eax,%eax */
-				else {
-					EMIT2(0x69, 0xc0);		/* imul imm32,%eax */
-					EMIT(K, 4);
-				}
+				else
+					EMIT2_off32(0x69, 0xc0, K); /* imul imm32,%eax */
 				break;
 			case BPF_S_ALU_DIV_X: /* A /= X; */
 				seen |= SEEN_XREG;
@@ -325,13 +436,23 @@ void bpf_jit_compile(struct sk_filter *fp)
 				break;
 			case BPF_S_ALU_MOD_K: /* A %= K; */
 				EMIT2(0x31, 0xd2);	/* xor %edx,%edx */
+#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
+				DILUTE_CONST_SEQUENCE(K, randkey);
+#else
 				EMIT1(0xb9);EMIT(K, 4);	/* mov imm32,%ecx */
+#endif
 				EMIT2(0xf7, 0xf1);	/* div %ecx */
 				EMIT2(0x89, 0xd0);	/* mov %edx,%eax */
 				break;
 			case BPF_S_ALU_DIV_K: /* A = reciprocal_divide(A, K); */
+#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
+				DILUTE_CONST_SEQUENCE(K, randkey);
+				// imul rax, rcx
+				EMIT4(0x48, 0x0f, 0xaf, 0xc1);
+#else
 				EMIT3(0x48, 0x69, 0xc0); /* imul imm32,%rax,%rax */
 				EMIT(K, 4);
+#endif
 				EMIT4(0x48, 0xc1, 0xe8, 0x20); /* shr $0x20,%rax */
 				break;
 			case BPF_S_ALU_AND_X:
@@ -602,8 +723,7 @@ common_load_ind:		seen |= SEEN_DATAREF | SEEN_XREG;
 					if (is_imm8(K)) {
 						EMIT3(0x8d, 0x73, K); /* lea imm8(%rbx), %esi */
 					} else {
-						EMIT2(0x8d, 0xb3); /* lea imm32(%rbx),%esi */
-						EMIT(K, 4);
+						EMIT2_off32(0x8d, 0xb3, K); /* lea imm32(%rbx),%esi */
 					}
 				} else {
 					EMIT2(0x89,0xde); /* mov %ebx,%esi */
@@ -686,17 +806,18 @@ cond_branch:			f_offset = addrs[i + filter[i].jf] - addrs[i];
 				break;
 			default:
 				/* hmm, too complex filter, give up with jit compiler */
-				goto out;
+				goto error;
 			}
 			ilen = prog - temp;
 			if (image) {
 				if (unlikely(proglen + ilen > oldproglen)) {
 					pr_err("bpb_jit_compile fatal error\n");
-					kfree(addrs);
-					module_free(NULL, image);
-					return;
+					module_free_exec(NULL, image);
+					goto error;
 				}
+				pax_open_kernel();
 				memcpy(image + proglen, temp, ilen);
+				pax_close_kernel();
 			}
 			proglen += ilen;
 			addrs[i] = proglen;
@@ -717,11 +838,9 @@ cond_branch:			f_offset = addrs[i + filter[i].jf] - addrs[i];
 			break;
 		}
 		if (proglen == oldproglen) {
-			image = module_alloc(max_t(unsigned int,
-						   proglen,
-						   sizeof(struct work_struct)));
+			image = module_alloc_exec(proglen);
 			if (!image)
-				goto out;
+				goto error;
 		}
 		oldproglen = proglen;
 	}
@@ -737,7 +856,10 @@ cond_branch:			f_offset = addrs[i + filter[i].jf] - addrs[i];
 		bpf_flush_icache(image, image + proglen);
 
 		fp->bpf_func = (void *)image;
-	}
+	} else
+error:
+		kfree(fp->work);
+
 out:
 	kfree(addrs);
 	return;
@@ -745,18 +867,20 @@ out:
 
 static void jit_free_defer(struct work_struct *arg)
 {
-	module_free(NULL, arg);
+	module_free_exec(NULL, ((struct bpf_jit_work *)arg)->image);
+	kfree(arg);
 }
 
 /* run from softirq, we must use a work_struct to call
- * module_free() from process context
+ * module_free_exec() from process context
  */
 void bpf_jit_free(struct sk_filter *fp)
 {
 	if (fp->bpf_func != sk_run_filter) {
-		struct work_struct *work = (struct work_struct *)fp->bpf_func;
+		struct work_struct *work = &fp->work->work;
 
 		INIT_WORK(work, jit_free_defer);
+		fp->work->image = fp->bpf_func;
 		schedule_work(work);
 	}
 }
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index d6aa6e8..266395a 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -46,11 +46,11 @@ dump_user_backtrace_32(struct stack_frame_ia32 *head)
 	struct stack_frame_ia32 *fp;
 	unsigned long bytes;
 
-	bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
+	bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
 	if (bytes != sizeof(bufhead))
 		return NULL;
 
-	fp = (struct stack_frame_ia32 *) compat_ptr(bufhead[0].next_frame);
+	fp = (struct stack_frame_ia32 __force_kernel *) compat_ptr(bufhead[0].next_frame);
 
 	oprofile_add_trace(bufhead[0].return_address);
 
@@ -92,7 +92,7 @@ static struct stack_frame *dump_user_backtrace(struct stack_frame *head)
 	struct stack_frame bufhead[2];
 	unsigned long bytes;
 
-	bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
+	bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
 	if (bytes != sizeof(bufhead))
 		return NULL;
 
@@ -111,7 +111,7 @@ x86_backtrace(struct pt_regs * const regs, unsigned int depth)
 {
 	struct stack_frame *head = (struct stack_frame *)frame_pointer(regs);
 
-	if (!user_mode_vm(regs)) {
+	if (!user_mode(regs)) {
 		unsigned long stack = kernel_stack_pointer(regs);
 		if (depth)
 			dump_trace(NULL, regs, (unsigned long *)stack, 0,
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 48768df..ba9143c 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -23,6 +23,7 @@
 #include <asm/nmi.h>
 #include <asm/msr.h>
 #include <asm/apic.h>
+#include <asm/pgtable.h>
 
 #include "op_counter.h"
 #include "op_x86_model.h"
@@ -774,8 +775,11 @@ int __init op_nmi_init(struct oprofile_operations *ops)
 	if (ret)
 		return ret;
 
-	if (!model->num_virt_counters)
-		model->num_virt_counters = model->num_counters;
+	if (!model->num_virt_counters) {
+		pax_open_kernel();
+		*(unsigned int *)&model->num_virt_counters = model->num_counters;
+		pax_close_kernel();
+	}
 
 	mux_init(ops);
 
diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
index b2b9443..be58856 100644
--- a/arch/x86/oprofile/op_model_amd.c
+++ b/arch/x86/oprofile/op_model_amd.c
@@ -519,9 +519,11 @@ static int op_amd_init(struct oprofile_operations *ops)
 		num_counters = AMD64_NUM_COUNTERS;
 	}
 
-	op_amd_spec.num_counters = num_counters;
-	op_amd_spec.num_controls = num_counters;
-	op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
+	pax_open_kernel();
+	*(unsigned int *)&op_amd_spec.num_counters = num_counters;
+	*(unsigned int *)&op_amd_spec.num_controls = num_counters;
+	*(unsigned int *)&op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
+	pax_close_kernel();
 
 	return 0;
 }
diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index d90528e..0127e2b 100644
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -19,6 +19,7 @@
 #include <asm/msr.h>
 #include <asm/apic.h>
 #include <asm/nmi.h>
+#include <asm/pgtable.h>
 
 #include "op_x86_model.h"
 #include "op_counter.h"
@@ -221,8 +222,10 @@ static void arch_perfmon_setup_counters(void)
 
 	num_counters = min((int)eax.split.num_counters, OP_MAX_COUNTER);
 
-	op_arch_perfmon_spec.num_counters = num_counters;
-	op_arch_perfmon_spec.num_controls = num_counters;
+	pax_open_kernel();
+	*(unsigned int *)&op_arch_perfmon_spec.num_counters = num_counters;
+	*(unsigned int *)&op_arch_perfmon_spec.num_controls = num_counters;
+	pax_close_kernel();
 }
 
 static int arch_perfmon_init(struct oprofile_operations *ignore)
diff --git a/arch/x86/oprofile/op_x86_model.h b/arch/x86/oprofile/op_x86_model.h
index 71e8a67..6a313bb 100644
--- a/arch/x86/oprofile/op_x86_model.h
+++ b/arch/x86/oprofile/op_x86_model.h
@@ -52,7 +52,7 @@ struct op_x86_model_spec {
 	void		(*switch_ctrl)(struct op_x86_model_spec const *model,
 				       struct op_msrs const * const msrs);
 #endif
-};
+} __do_const;
 
 struct op_counter_config;
 
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index e9e6ed5..e47ae67 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -337,7 +337,7 @@ static int __cpuinit amd_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata amd_cpu_notifier = {
+static struct notifier_block amd_cpu_notifier = {
 	.notifier_call	= amd_cpu_notify,
 };
 
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 372e9b8..e775a6c 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -50,7 +50,7 @@ struct irq_router {
 struct irq_router_handler {
 	u16 vendor;
 	int (*probe)(struct irq_router *r, struct pci_dev *router, u16 device);
-};
+} __do_const;
 
 int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq;
 void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL;
@@ -794,7 +794,7 @@ static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router
 	return 0;
 }
 
-static __initdata struct irq_router_handler pirq_routers[] = {
+static __initconst const struct irq_router_handler pirq_routers[] = {
 	{ PCI_VENDOR_ID_INTEL, intel_router_probe },
 	{ PCI_VENDOR_ID_AL, ali_router_probe },
 	{ PCI_VENDOR_ID_ITE, ite_router_probe },
@@ -821,7 +821,7 @@ static struct pci_dev *pirq_router_dev;
 static void __init pirq_find_router(struct irq_router *r)
 {
 	struct irq_routing_table *rt = pirq_table;
-	struct irq_router_handler *h;
+	const struct irq_router_handler *h;
 
 #ifdef CONFIG_PCI_BIOS
 	if (!rt->signature) {
@@ -1094,7 +1094,7 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata pciirq_dmi_table[] = {
+static const struct dmi_system_id __initconst pciirq_dmi_table[] = {
 	{
 		.callback = fix_broken_hp_bios_irq9,
 		.ident = "HP Pavilion N5400 Series Laptop",
diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c
index 6eb18c4..20d83de 100644
--- a/arch/x86/pci/mrst.c
+++ b/arch/x86/pci/mrst.c
@@ -238,7 +238,9 @@ int __init pci_mrst_init(void)
 	printk(KERN_INFO "Intel MID platform detected, using MID PCI ops\n");
 	pci_mmcfg_late_init();
 	pcibios_enable_irq = mrst_pci_irq_enable;
-	pci_root_ops = pci_mrst_ops;
+	pax_open_kernel();
+	memcpy((void *)&pci_root_ops, &pci_mrst_ops, sizeof(pci_mrst_ops));
+	pax_close_kernel();
 	pci_soc_mode = 1;
 	/* Continue with standard init */
 	return 1;
diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
index c77b24a..c979855 100644
--- a/arch/x86/pci/pcbios.c
+++ b/arch/x86/pci/pcbios.c
@@ -79,7 +79,7 @@ union bios32 {
 static struct {
 	unsigned long address;
 	unsigned short segment;
-} bios32_indirect = { 0, __KERNEL_CS };
+} bios32_indirect __read_only = { 0, __PCIBIOS_CS };
 
 /*
  * Returns the entry point for the given service, NULL on error
@@ -92,37 +92,80 @@ static unsigned long bios32_service(unsigned long service)
 	unsigned long length;		/* %ecx */
 	unsigned long entry;		/* %edx */
 	unsigned long flags;
+	struct desc_struct d, *gdt;
 
 	local_irq_save(flags);
-	__asm__("lcall *(%%edi); cld"
+
+	gdt = get_cpu_gdt_table(smp_processor_id());
+
+	pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC);
+	write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
+	pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC);
+	write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
+
+	__asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld"
 		: "=a" (return_code),
 		  "=b" (address),
 		  "=c" (length),
 		  "=d" (entry)
 		: "0" (service),
 		  "1" (0),
-		  "D" (&bios32_indirect));
+		  "D" (&bios32_indirect),
+		  "r"(__PCIBIOS_DS)
+		: "memory");
+
+	pax_open_kernel();
+	gdt[GDT_ENTRY_PCIBIOS_CS].a = 0;
+	gdt[GDT_ENTRY_PCIBIOS_CS].b = 0;
+	gdt[GDT_ENTRY_PCIBIOS_DS].a = 0;
+	gdt[GDT_ENTRY_PCIBIOS_DS].b = 0;
+	pax_close_kernel();
+
 	local_irq_restore(flags);
 
 	switch (return_code) {
-		case 0:
-			return address + entry;
-		case 0x80:	/* Not present */
-			printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
-			return 0;
-		default: /* Shouldn't happen */
-			printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
-				service, return_code);
+	case 0: {
+		int cpu;
+		unsigned char flags;
+
+		printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry);
+		if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) {
+			printk(KERN_WARNING "bios32_service: not valid\n");
 			return 0;
+		}
+		address = address + PAGE_OFFSET;
+		length += 16UL; /* some BIOSs underreport this... */
+		flags = 4;
+		if (length >= 64*1024*1024) {
+			length >>= PAGE_SHIFT;
+			flags |= 8;
+		}
+
+		for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
+			gdt = get_cpu_gdt_table(cpu);
+			pack_descriptor(&d, address, length, 0x9b, flags);
+			write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
+			pack_descriptor(&d, address, length, 0x93, flags);
+			write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
+		}
+		return entry;
+	}
+	case 0x80:	/* Not present */
+		printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
+		return 0;
+	default: /* Shouldn't happen */
+		printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
+			service, return_code);
+		return 0;
 	}
 }
 
 static struct {
 	unsigned long address;
 	unsigned short segment;
-} pci_indirect = { 0, __KERNEL_CS };
+} pci_indirect __read_only = { 0, __PCIBIOS_CS };
 
-static int pci_bios_present;
+static int pci_bios_present __read_only;
 
 static int check_pcibios(void)
 {
@@ -131,11 +174,13 @@ static int check_pcibios(void)
 	unsigned long flags, pcibios_entry;
 
 	if ((pcibios_entry = bios32_service(PCI_SERVICE))) {
-		pci_indirect.address = pcibios_entry + PAGE_OFFSET;
+		pci_indirect.address = pcibios_entry;
 
 		local_irq_save(flags);
-		__asm__(
-			"lcall *(%%edi); cld\n\t"
+		__asm__("movw %w6, %%ds\n\t"
+			"lcall *%%ss:(%%edi); cld\n\t"
+			"push %%ss\n\t"
+			"pop %%ds\n\t"
 			"jc 1f\n\t"
 			"xor %%ah, %%ah\n"
 			"1:"
@@ -144,7 +189,8 @@ static int check_pcibios(void)
 			  "=b" (ebx),
 			  "=c" (ecx)
 			: "1" (PCIBIOS_PCI_BIOS_PRESENT),
-			  "D" (&pci_indirect)
+			  "D" (&pci_indirect),
+			  "r" (__PCIBIOS_DS)
 			: "memory");
 		local_irq_restore(flags);
 
@@ -189,7 +235,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
 
 	switch (len) {
 	case 1:
-		__asm__("lcall *(%%esi); cld\n\t"
+		__asm__("movw %w6, %%ds\n\t"
+			"lcall *%%ss:(%%esi); cld\n\t"
+			"push %%ss\n\t"
+			"pop %%ds\n\t"
 			"jc 1f\n\t"
 			"xor %%ah, %%ah\n"
 			"1:"
@@ -198,7 +247,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
 			: "1" (PCIBIOS_READ_CONFIG_BYTE),
 			  "b" (bx),
 			  "D" ((long)reg),
-			  "S" (&pci_indirect));
+			  "S" (&pci_indirect),
+			  "r" (__PCIBIOS_DS));
 		/*
 		 * Zero-extend the result beyond 8 bits, do not trust the
 		 * BIOS having done it:
@@ -206,7 +256,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
 		*value &= 0xff;
 		break;
 	case 2:
-		__asm__("lcall *(%%esi); cld\n\t"
+		__asm__("movw %w6, %%ds\n\t"
+			"lcall *%%ss:(%%esi); cld\n\t"
+			"push %%ss\n\t"
+			"pop %%ds\n\t"
 			"jc 1f\n\t"
 			"xor %%ah, %%ah\n"
 			"1:"
@@ -215,7 +268,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
 			: "1" (PCIBIOS_READ_CONFIG_WORD),
 			  "b" (bx),
 			  "D" ((long)reg),
-			  "S" (&pci_indirect));
+			  "S" (&pci_indirect),
+			  "r" (__PCIBIOS_DS));
 		/*
 		 * Zero-extend the result beyond 16 bits, do not trust the
 		 * BIOS having done it:
@@ -223,7 +277,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
 		*value &= 0xffff;
 		break;
 	case 4:
-		__asm__("lcall *(%%esi); cld\n\t"
+		__asm__("movw %w6, %%ds\n\t"
+			"lcall *%%ss:(%%esi); cld\n\t"
+			"push %%ss\n\t"
+			"pop %%ds\n\t"
 			"jc 1f\n\t"
 			"xor %%ah, %%ah\n"
 			"1:"
@@ -232,7 +289,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
 			: "1" (PCIBIOS_READ_CONFIG_DWORD),
 			  "b" (bx),
 			  "D" ((long)reg),
-			  "S" (&pci_indirect));
+			  "S" (&pci_indirect),
+			  "r" (__PCIBIOS_DS));
 		break;
 	}
 
@@ -256,7 +314,10 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
 
 	switch (len) {
 	case 1:
-		__asm__("lcall *(%%esi); cld\n\t"
+		__asm__("movw %w6, %%ds\n\t"
+			"lcall *%%ss:(%%esi); cld\n\t"
+			"push %%ss\n\t"
+			"pop %%ds\n\t"
 			"jc 1f\n\t"
 			"xor %%ah, %%ah\n"
 			"1:"
@@ -265,10 +326,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
 			  "c" (value),
 			  "b" (bx),
 			  "D" ((long)reg),
-			  "S" (&pci_indirect));
+			  "S" (&pci_indirect),
+			  "r" (__PCIBIOS_DS));
 		break;
 	case 2:
-		__asm__("lcall *(%%esi); cld\n\t"
+		__asm__("movw %w6, %%ds\n\t"
+			"lcall *%%ss:(%%esi); cld\n\t"
+			"push %%ss\n\t"
+			"pop %%ds\n\t"
 			"jc 1f\n\t"
 			"xor %%ah, %%ah\n"
 			"1:"
@@ -277,10 +342,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
 			  "c" (value),
 			  "b" (bx),
 			  "D" ((long)reg),
-			  "S" (&pci_indirect));
+			  "S" (&pci_indirect),
+			  "r" (__PCIBIOS_DS));
 		break;
 	case 4:
-		__asm__("lcall *(%%esi); cld\n\t"
+		__asm__("movw %w6, %%ds\n\t"
+			"lcall *%%ss:(%%esi); cld\n\t"
+			"push %%ss\n\t"
+			"pop %%ds\n\t"
 			"jc 1f\n\t"
 			"xor %%ah, %%ah\n"
 			"1:"
@@ -289,7 +358,8 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
 			  "c" (value),
 			  "b" (bx),
 			  "D" ((long)reg),
-			  "S" (&pci_indirect));
+			  "S" (&pci_indirect),
+			  "r" (__PCIBIOS_DS));
 		break;
 	}
 
@@ -394,10 +464,13 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
 
 	DBG("PCI: Fetching IRQ routing table... ");
 	__asm__("push %%es\n\t"
+		"movw %w8, %%ds\n\t"
 		"push %%ds\n\t"
 		"pop  %%es\n\t"
-		"lcall *(%%esi); cld\n\t"
+		"lcall *%%ss:(%%esi); cld\n\t"
 		"pop %%es\n\t"
+		"push %%ss\n\t"
+		"pop %%ds\n"
 		"jc 1f\n\t"
 		"xor %%ah, %%ah\n"
 		"1:"
@@ -408,7 +481,8 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
 		  "1" (0),
 		  "D" ((long) &opt),
 		  "S" (&pci_indirect),
-		  "m" (opt)
+		  "m" (opt),
+		  "r" (__PCIBIOS_DS)
 		: "memory");
 	DBG("OK  ret=%d, size=%d, map=%x\n", ret, opt.size, map);
 	if (ret & 0xff00)
@@ -432,7 +506,10 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
 {
 	int ret;
 
-	__asm__("lcall *(%%esi); cld\n\t"
+	__asm__("movw %w5, %%ds\n\t"
+		"lcall *%%ss:(%%esi); cld\n\t"
+		"push %%ss\n\t"
+		"pop %%ds\n"
 		"jc 1f\n\t"
 		"xor %%ah, %%ah\n"
 		"1:"
@@ -440,7 +517,8 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
 		: "0" (PCIBIOS_SET_PCI_HW_INT),
 		  "b" ((dev->bus->number << 8) | dev->devfn),
 		  "c" ((irq << 8) | (pin + 10)),
-		  "S" (&pci_indirect));
+		  "S" (&pci_indirect),
+		  "r" (__PCIBIOS_DS));
 	return !(ret & 0xff00);
 }
 EXPORT_SYMBOL(pcibios_set_irq_routing);
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 40e4469..1ab536e 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -44,11 +44,22 @@ void efi_call_phys_prelog(void)
 {
 	struct desc_ptr gdt_descr;
 
+#ifdef CONFIG_PAX_KERNEXEC
+	struct desc_struct d;
+#endif
+
 	local_irq_save(efi_rt_eflags);
 
 	load_cr3(initial_page_table);
 	__flush_tlb_all();
 
+#ifdef CONFIG_PAX_KERNEXEC
+	pack_descriptor(&d, 0, 0xFFFFF, 0x9B, 0xC);
+	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
+	pack_descriptor(&d, 0, 0xFFFFF, 0x93, 0xC);
+	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
+#endif
+
 	gdt_descr.address = __pa(get_cpu_gdt_table(0));
 	gdt_descr.size = GDT_SIZE - 1;
 	load_gdt(&gdt_descr);
@@ -58,6 +69,14 @@ void efi_call_phys_epilog(void)
 {
 	struct desc_ptr gdt_descr;
 
+#ifdef CONFIG_PAX_KERNEXEC
+	struct desc_struct d;
+
+	memset(&d, 0, sizeof d);
+	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
+	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
+#endif
+
 	gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
 	gdt_descr.size = GDT_SIZE - 1;
 	load_gdt(&gdt_descr);
diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
index fbe66e6..eae5e38 100644
--- a/arch/x86/platform/efi/efi_stub_32.S
+++ b/arch/x86/platform/efi/efi_stub_32.S
@@ -6,7 +6,9 @@
  */
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 #include <asm/page_types.h>
+#include <asm/segment.h>
 
 /*
  * efi_call_phys(void *, ...) is a function with variable parameters.
@@ -20,7 +22,7 @@
  * service functions will comply with gcc calling convention, too.
  */
 
-.text
+__INIT
 ENTRY(efi_call_phys)
 	/*
 	 * 0. The function can only be called in Linux kernel. So CS has been
@@ -36,10 +38,24 @@ ENTRY(efi_call_phys)
 	 * The mapping of lower virtual memory has been created in prelog and
 	 * epilog.
 	 */
-	movl	$1f, %edx
-	subl	$__PAGE_OFFSET, %edx
-	jmp	*%edx
+#ifdef CONFIG_PAX_KERNEXEC
+	movl	$(__KERNEXEC_EFI_DS), %edx
+	mov	%edx, %ds
+	mov	%edx, %es
+	mov	%edx, %ss
+	addl	$2f,(1f)
+	ljmp	*(1f)
+
+__INITDATA
+1:	.long __LOAD_PHYSICAL_ADDR, __KERNEXEC_EFI_CS
+.previous
+
+2:
+	subl	$2b,(1b)
+#else
+	jmp	1f-__PAGE_OFFSET
 1:
+#endif
 
 	/*
 	 * 2. Now on the top of stack is the return
@@ -47,14 +63,8 @@ ENTRY(efi_call_phys)
 	 * parameter 2, ..., param n. To make things easy, we save the return
 	 * address of efi_call_phys in a global variable.
 	 */
-	popl	%edx
-	movl	%edx, saved_return_addr
-	/* get the function pointer into ECX*/
-	popl	%ecx
-	movl	%ecx, efi_rt_function_ptr
-	movl	$2f, %edx
-	subl	$__PAGE_OFFSET, %edx
-	pushl	%edx
+	popl	(saved_return_addr)
+	popl	(efi_rt_function_ptr)
 
 	/*
 	 * 3. Clear PG bit in %CR0.
@@ -73,9 +83,8 @@ ENTRY(efi_call_phys)
 	/*
 	 * 5. Call the physical function.
 	 */
-	jmp	*%ecx
+	call	*(efi_rt_function_ptr-__PAGE_OFFSET)
 
-2:
 	/*
 	 * 6. After EFI runtime service returns, control will return to
 	 * following instruction. We'd better readjust stack pointer first.
@@ -88,35 +97,36 @@ ENTRY(efi_call_phys)
 	movl	%cr0, %edx
 	orl	$0x80000000, %edx
 	movl	%edx, %cr0
-	jmp	1f
-1:
+
 	/*
 	 * 8. Now restore the virtual mode from flat mode by
 	 * adding EIP with PAGE_OFFSET.
 	 */
-	movl	$1f, %edx
-	jmp	*%edx
+#ifdef CONFIG_PAX_KERNEXEC
+	movl	$(__KERNEL_DS), %edx
+	mov	%edx, %ds
+	mov	%edx, %es
+	mov	%edx, %ss
+	ljmp	$(__KERNEL_CS),$1f
+#else
+	jmp	1f+__PAGE_OFFSET
+#endif
 1:
 
 	/*
 	 * 9. Balance the stack. And because EAX contain the return value,
 	 * we'd better not clobber it.
 	 */
-	leal	efi_rt_function_ptr, %edx
-	movl	(%edx), %ecx
-	pushl	%ecx
+	pushl	(efi_rt_function_ptr)
 
 	/*
-	 * 10. Push the saved return address onto the stack and return.
+	 * 10. Return to the saved return address.
 	 */
-	leal	saved_return_addr, %edx
-	movl	(%edx), %ecx
-	pushl	%ecx
-	ret
+	jmpl	*(saved_return_addr)
 ENDPROC(efi_call_phys)
 .previous
 
-.data
+__INITDATA
 saved_return_addr:
 	.long 0
 efi_rt_function_ptr:
diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
index 4c07cca..2c8427d 100644
--- a/arch/x86/platform/efi/efi_stub_64.S
+++ b/arch/x86/platform/efi/efi_stub_64.S
@@ -7,6 +7,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 #define SAVE_XMM			\
 	mov %rsp, %rax;			\
@@ -40,6 +41,7 @@ ENTRY(efi_call0)
 	call *%rdi
 	addq $32, %rsp
 	RESTORE_XMM
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(efi_call0)
 
@@ -50,6 +52,7 @@ ENTRY(efi_call1)
 	call *%rdi
 	addq $32, %rsp
 	RESTORE_XMM
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(efi_call1)
 
@@ -60,6 +63,7 @@ ENTRY(efi_call2)
 	call *%rdi
 	addq $32, %rsp
 	RESTORE_XMM
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(efi_call2)
 
@@ -71,6 +75,7 @@ ENTRY(efi_call3)
 	call *%rdi
 	addq $32, %rsp
 	RESTORE_XMM
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(efi_call3)
 
@@ -83,6 +88,7 @@ ENTRY(efi_call4)
 	call *%rdi
 	addq $32, %rsp
 	RESTORE_XMM
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(efi_call4)
 
@@ -96,6 +102,7 @@ ENTRY(efi_call5)
 	call *%rdi
 	addq $48, %rsp
 	RESTORE_XMM
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(efi_call5)
 
@@ -112,5 +119,6 @@ ENTRY(efi_call6)
 	call *%rdi
 	addq $48, %rsp
 	RESTORE_XMM
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(efi_call6)
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index e31bcd8..f12dc46 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -78,13 +78,15 @@ struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
 EXPORT_SYMBOL_GPL(sfi_mrtc_array);
 int sfi_mrtc_num;
 
-static void mrst_power_off(void)
+static __noreturn void mrst_power_off(void)
 {
+	BUG();
 }
 
-static void mrst_reboot(void)
+static __noreturn void mrst_reboot(void)
 {
 	intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
+	BUG();
 }
 
 /* parse all the mtimer info to a static mtimer array */
diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
index d6ee929..3637cb5 100644
--- a/arch/x86/platform/olpc/olpc_dt.c
+++ b/arch/x86/platform/olpc/olpc_dt.c
@@ -156,7 +156,7 @@ void * __init prom_early_alloc(unsigned long size)
 	return res;
 }
 
-static struct of_pdt_ops prom_olpc_ops __initdata = {
+static struct of_pdt_ops prom_olpc_ops __initconst = {
 	.nextprop = olpc_dt_nextprop,
 	.getproplen = olpc_dt_getproplen,
 	.getproperty = olpc_dt_getproperty,
diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index 3c68768..07e82b8 100644
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -134,7 +134,7 @@ static void do_fpu_end(void)
 static void fix_processor_context(void)
 {
 	int cpu = smp_processor_id();
-	struct tss_struct *t = &per_cpu(init_tss, cpu);
+	struct tss_struct *t = init_tss + cpu;
 
 	set_tss_desc(cpu, t);	/*
 				 * This just modifies memory; should not be
@@ -144,8 +144,6 @@ static void fix_processor_context(void)
 				 */
 
 #ifdef CONFIG_X86_64
-	get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9;
-
 	syscall_init();				/* This sets MSR_*STAR and related */
 #endif
 	load_TR_desc();				/* This does ltr */
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
index a44f457..9140171 100644
--- a/arch/x86/realmode/init.c
+++ b/arch/x86/realmode/init.c
@@ -70,7 +70,13 @@ void __init setup_real_mode(void)
 		__va(real_mode_header->trampoline_header);
 
 #ifdef CONFIG_X86_32
-	trampoline_header->start = __pa_symbol(startup_32_smp);
+	trampoline_header->start = __pa_symbol(ktla_ktva(startup_32_smp));
+
+#ifdef CONFIG_PAX_KERNEXEC
+	trampoline_header->start -= LOAD_PHYSICAL_ADDR;
+#endif
+
+	trampoline_header->boot_cs = __BOOT_CS;
 	trampoline_header->gdt_limit = __BOOT_DS + 7;
 	trampoline_header->gdt_base = __pa_symbol(boot_gdt);
 #else
@@ -86,7 +92,7 @@ void __init setup_real_mode(void)
 	*trampoline_cr4_features = read_cr4();
 
 	trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
-	trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd;
+	trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd & ~_PAGE_NX;
 	trampoline_pgd[511] = init_level4_pgt[511].pgd;
 #endif
 }
diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
index 8869287..d577672 100644
--- a/arch/x86/realmode/rm/Makefile
+++ b/arch/x86/realmode/rm/Makefile
@@ -78,5 +78,8 @@ KBUILD_CFLAGS	:= $(LINUXINCLUDE) -m32 -g -Os -D_SETUP -D__KERNEL__ -D_WAKEUP \
 			$(call cc-option, -fno-unit-at-a-time)) \
 		   $(call cc-option, -fno-stack-protector) \
 		   $(call cc-option, -mpreferred-stack-boundary=2)
+ifdef CONSTIFY_PLUGIN
+KBUILD_CFLAGS	+= -fplugin-arg-constify_plugin-no-constify
+endif
 KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
 GCOV_PROFILE := n
diff --git a/arch/x86/realmode/rm/header.S b/arch/x86/realmode/rm/header.S
index a28221d..93c40f1 100644
--- a/arch/x86/realmode/rm/header.S
+++ b/arch/x86/realmode/rm/header.S
@@ -30,7 +30,9 @@ GLOBAL(real_mode_header)
 #endif
 	/* APM/BIOS reboot */
 	.long	pa_machine_real_restart_asm
-#ifdef CONFIG_X86_64
+#ifdef CONFIG_X86_32
+	.long	__KERNEL_CS
+#else
 	.long	__KERNEL32_CS
 #endif
 END(real_mode_header)
diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
index c1b2791..f9e31c7 100644
--- a/arch/x86/realmode/rm/trampoline_32.S
+++ b/arch/x86/realmode/rm/trampoline_32.S
@@ -25,6 +25,12 @@
 #include <asm/page_types.h>
 #include "realmode.h"
 
+#ifdef CONFIG_PAX_KERNEXEC
+#define ta(X) (X)
+#else
+#define ta(X) (pa_ ## X)
+#endif
+
 	.text
 	.code16
 
@@ -39,8 +45,6 @@ ENTRY(trampoline_start)
 
 	cli			# We should be safe anyway
 
-	movl	tr_start, %eax	# where we need to go
-
 	movl	$0xA5A5A5A5, trampoline_status
 				# write marker for master knows we're running
 
@@ -56,7 +60,7 @@ ENTRY(trampoline_start)
 	movw	$1, %dx			# protected mode (PE) bit
 	lmsw	%dx			# into protected mode
 
-	ljmpl	$__BOOT_CS, $pa_startup_32
+	ljmpl *(trampoline_header)
 
 	.section ".text32","ax"
 	.code32
@@ -67,7 +71,7 @@ ENTRY(startup_32)			# note: also used from wakeup_asm.S
 	.balign 8
 GLOBAL(trampoline_header)
 	tr_start:		.space	4
-	tr_gdt_pad:		.space	2
+	tr_boot_cs:		.space	2
 	tr_gdt:			.space	6
 END(trampoline_header)
 	
diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
index bb360dc..3e5945f 100644
--- a/arch/x86/realmode/rm/trampoline_64.S
+++ b/arch/x86/realmode/rm/trampoline_64.S
@@ -107,7 +107,7 @@ ENTRY(startup_32)
 	wrmsr
 
 	# Enable paging and in turn activate Long Mode
-	movl	$(X86_CR0_PG | X86_CR0_WP | X86_CR0_PE), %eax
+	movl	$(X86_CR0_PG | X86_CR0_PE), %eax
 	movl	%eax, %cr0
 
 	/*
diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
index 79d67bd..c7e1b90 100644
--- a/arch/x86/tools/relocs.c
+++ b/arch/x86/tools/relocs.c
@@ -12,10 +12,13 @@
 #include <regex.h>
 #include <tools/le_byteshift.h>
 
+#include "../../../include/generated/autoconf.h"
+
 static void die(char *fmt, ...);
 
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 static Elf32_Ehdr ehdr;
+static Elf32_Phdr *phdr;
 static unsigned long reloc_count, reloc_idx;
 static unsigned long *relocs;
 static unsigned long reloc16_count, reloc16_idx;
@@ -330,9 +333,39 @@ static void read_ehdr(FILE *fp)
 	}
 }
 
+static void read_phdrs(FILE *fp)
+{
+	unsigned int i;
+
+	phdr = calloc(ehdr.e_phnum, sizeof(Elf32_Phdr));
+	if (!phdr) {
+		die("Unable to allocate %d program headers\n",
+		    ehdr.e_phnum);
+	}
+	if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) {
+		die("Seek to %d failed: %s\n",
+			ehdr.e_phoff, strerror(errno));
+	}
+	if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) {
+		die("Cannot read ELF program headers: %s\n",
+			strerror(errno));
+	}
+	for(i = 0; i < ehdr.e_phnum; i++) {
+		phdr[i].p_type      = elf32_to_cpu(phdr[i].p_type);
+		phdr[i].p_offset    = elf32_to_cpu(phdr[i].p_offset);
+		phdr[i].p_vaddr     = elf32_to_cpu(phdr[i].p_vaddr);
+		phdr[i].p_paddr     = elf32_to_cpu(phdr[i].p_paddr);
+		phdr[i].p_filesz    = elf32_to_cpu(phdr[i].p_filesz);
+		phdr[i].p_memsz     = elf32_to_cpu(phdr[i].p_memsz);
+		phdr[i].p_flags     = elf32_to_cpu(phdr[i].p_flags);
+		phdr[i].p_align     = elf32_to_cpu(phdr[i].p_align);
+	}
+
+}
+
 static void read_shdrs(FILE *fp)
 {
-	int i;
+	unsigned int i;
 	Elf32_Shdr shdr;
 
 	secs = calloc(ehdr.e_shnum, sizeof(struct section));
@@ -367,7 +400,7 @@ static void read_shdrs(FILE *fp)
 
 static void read_strtabs(FILE *fp)
 {
-	int i;
+	unsigned int i;
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		struct section *sec = &secs[i];
 		if (sec->shdr.sh_type != SHT_STRTAB) {
@@ -392,7 +425,7 @@ static void read_strtabs(FILE *fp)
 
 static void read_symtabs(FILE *fp)
 {
-	int i,j;
+	unsigned int i,j;
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		struct section *sec = &secs[i];
 		if (sec->shdr.sh_type != SHT_SYMTAB) {
@@ -423,9 +456,11 @@ static void read_symtabs(FILE *fp)
 }
 
 
-static void read_relocs(FILE *fp)
+static void read_relocs(FILE *fp, int use_real_mode)
 {
-	int i,j;
+	unsigned int i,j;
+	uint32_t base;
+
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		struct section *sec = &secs[i];
 		if (sec->shdr.sh_type != SHT_REL) {
@@ -445,9 +480,22 @@ static void read_relocs(FILE *fp)
 			die("Cannot read symbol table: %s\n",
 				strerror(errno));
 		}
+		base = 0;
+
+#ifdef CONFIG_X86_32
+		for (j = 0; !use_real_mode && j < ehdr.e_phnum; j++) {
+			if (phdr[j].p_type != PT_LOAD )
+				continue;
+			if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz)
+				continue;
+			base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr;
+			break;
+		}
+#endif
+
 		for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
 			Elf32_Rel *rel = &sec->reltab[j];
-			rel->r_offset = elf32_to_cpu(rel->r_offset);
+			rel->r_offset = elf32_to_cpu(rel->r_offset) + base;
 			rel->r_info   = elf32_to_cpu(rel->r_info);
 		}
 	}
@@ -456,13 +504,13 @@ static void read_relocs(FILE *fp)
 
 static void print_absolute_symbols(void)
 {
-	int i;
+	unsigned int i;
 	printf("Absolute symbols\n");
 	printf(" Num:    Value Size  Type       Bind        Visibility  Name\n");
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		struct section *sec = &secs[i];
 		char *sym_strtab;
-		int j;
+		unsigned int j;
 
 		if (sec->shdr.sh_type != SHT_SYMTAB) {
 			continue;
@@ -489,14 +537,14 @@ static void print_absolute_symbols(void)
 
 static void print_absolute_relocs(void)
 {
-	int i, printed = 0;
+	unsigned int i, printed = 0;
 
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		struct section *sec = &secs[i];
 		struct section *sec_applies, *sec_symtab;
 		char *sym_strtab;
 		Elf32_Sym *sh_symtab;
-		int j;
+		unsigned int j;
 		if (sec->shdr.sh_type != SHT_REL) {
 			continue;
 		}
@@ -558,13 +606,13 @@ static void print_absolute_relocs(void)
 static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym),
 			int use_real_mode)
 {
-	int i;
+	unsigned int i;
 	/* Walk through the relocations */
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		char *sym_strtab;
 		Elf32_Sym *sh_symtab;
 		struct section *sec_applies, *sec_symtab;
-		int j;
+		unsigned int j;
 		struct section *sec = &secs[i];
 
 		if (sec->shdr.sh_type != SHT_REL) {
@@ -588,6 +636,24 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym),
 			sym = &sh_symtab[ELF32_R_SYM(rel->r_info)];
 			r_type = ELF32_R_TYPE(rel->r_info);
 
+			if (!use_real_mode) {
+				/* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */
+				if (!strcmp(sec_name(sym->st_shndx), ".data..percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load"))
+					continue;
+
+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32)
+				/* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */
+				if (!strcmp(sec_name(sym->st_shndx), ".text.end") && !strcmp(sym_name(sym_strtab, sym), "_etext"))
+					continue;
+				if (!strcmp(sec_name(sym->st_shndx), ".init.text"))
+					continue;
+				if (!strcmp(sec_name(sym->st_shndx), ".exit.text"))
+					continue;
+				if (!strcmp(sec_name(sym->st_shndx), ".text") && strcmp(sym_name(sym_strtab, sym), "__LOAD_PHYSICAL_ADDR"))
+					continue;
+#endif
+			}
+
 			shn_abs = sym->st_shndx == SHN_ABS;
 
 			switch (r_type) {
@@ -681,7 +747,7 @@ static int write32(unsigned int v, FILE *f)
 
 static void emit_relocs(int as_text, int use_real_mode)
 {
-	int i;
+	unsigned int i;
 	/* Count how many relocations I have and allocate space for them. */
 	reloc_count = 0;
 	walk_relocs(count_reloc, use_real_mode);
@@ -808,10 +874,11 @@ int main(int argc, char **argv)
 			fname, strerror(errno));
 	}
 	read_ehdr(fp);
+	read_phdrs(fp);
 	read_shdrs(fp);
 	read_strtabs(fp);
 	read_symtabs(fp);
-	read_relocs(fp);
+	read_relocs(fp, use_real_mode);
 	if (show_absolute_syms) {
 		print_absolute_symbols();
 		goto out;
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index fd14be1..e3c79c0 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -181,7 +181,7 @@ quiet_cmd_vdso = VDSO    $@
 		       -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \
 		 sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
 
-VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
+VDSO_LDFLAGS = -fPIC -shared -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
 GCOV_PROFILE := n
 
 #
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index 0faad64..39ef157 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -25,6 +25,7 @@
 #include <asm/tlbflush.h>
 #include <asm/vdso.h>
 #include <asm/proto.h>
+#include <asm/mman.h>
 
 enum {
 	VDSO_DISABLED = 0,
@@ -226,7 +227,7 @@ static inline void map_compat_vdso(int map)
 void enable_sep_cpu(void)
 {
 	int cpu = get_cpu();
-	struct tss_struct *tss = &per_cpu(init_tss, cpu);
+	struct tss_struct *tss = init_tss + cpu;
 
 	if (!boot_cpu_has(X86_FEATURE_SEP)) {
 		put_cpu();
@@ -249,7 +250,7 @@ static int __init gate_vma_init(void)
 	gate_vma.vm_start = FIXADDR_USER_START;
 	gate_vma.vm_end = FIXADDR_USER_END;
 	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
-	gate_vma.vm_page_prot = __P101;
+	gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
 
 	return 0;
 }
@@ -330,14 +331,14 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	if (compat)
 		addr = VDSO_HIGH_BASE;
 	else {
-		addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
+		addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, MAP_EXECUTABLE);
 		if (IS_ERR_VALUE(addr)) {
 			ret = addr;
 			goto up_fail;
 		}
 	}
 
-	current->mm->context.vdso = (void *)addr;
+	current->mm->context.vdso = addr;
 
 	if (compat_uses_vma || !compat) {
 		/*
@@ -353,11 +354,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	}
 
 	current_thread_info()->sysenter_return =
-		VDSO32_SYMBOL(addr, SYSENTER_RETURN);
+		(__force void __user *)VDSO32_SYMBOL(addr, SYSENTER_RETURN);
 
   up_fail:
 	if (ret)
-		current->mm->context.vdso = NULL;
+		current->mm->context.vdso = 0;
 
 	up_write(&mm->mmap_sem);
 
@@ -404,8 +405,14 @@ __initcall(ia32_binfmt_init);
 
 const char *arch_vma_name(struct vm_area_struct *vma)
 {
-	if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
+	if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
 		return "[vdso]";
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso)
+		return "[vdso]";
+#endif
+
 	return NULL;
 }
 
@@ -415,7 +422,7 @@ struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
 	 * Check to see if the corresponding task was created in compat vdso
 	 * mode.
 	 */
-	if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE)
+	if (mm && mm->context.vdso == VDSO_HIGH_BASE)
 		return &gate_vma;
 	return NULL;
 }
diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
index 431e875..cbb23f3 100644
--- a/arch/x86/vdso/vma.c
+++ b/arch/x86/vdso/vma.c
@@ -16,8 +16,6 @@
 #include <asm/vdso.h>
 #include <asm/page.h>
 
-unsigned int __read_mostly vdso_enabled = 1;
-
 extern char vdso_start[], vdso_end[];
 extern unsigned short vdso_sync_cpuid;
 
@@ -141,7 +139,6 @@ static unsigned long vdso_addr(unsigned long start, unsigned len)
 	 * unaligned here as a result of stack start randomization.
 	 */
 	addr = PAGE_ALIGN(addr);
-	addr = align_vdso_addr(addr);
 
 	return addr;
 }
@@ -154,30 +151,31 @@ static int setup_additional_pages(struct linux_binprm *bprm,
 				  unsigned size)
 {
 	struct mm_struct *mm = current->mm;
-	unsigned long addr;
+	unsigned long addr = 0;
 	int ret;
 
-	if (!vdso_enabled)
-		return 0;
-
 	down_write(&mm->mmap_sem);
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	addr = vdso_addr(mm->start_stack, size);
+	addr = align_vdso_addr(addr);
 	addr = get_unmapped_area(NULL, addr, size, 0, 0);
 	if (IS_ERR_VALUE(addr)) {
 		ret = addr;
 		goto up_fail;
 	}
 
-	current->mm->context.vdso = (void *)addr;
+	mm->context.vdso = addr;
 
 	ret = install_special_mapping(mm, addr, size,
 				      VM_READ|VM_EXEC|
 				      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
 				      pages);
-	if (ret) {
-		current->mm->context.vdso = NULL;
-		goto up_fail;
-	}
+	if (ret)
+		mm->context.vdso = 0;
 
 up_fail:
 	up_write(&mm->mmap_sem);
@@ -197,10 +195,3 @@ int x32_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 				      vdsox32_size);
 }
 #endif
-
-static __init int vdso_setup(char *s)
-{
-	vdso_enabled = simple_strtoul(s, NULL, 0);
-	return 0;
-}
-__setup("vdso=", vdso_setup);
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index cf95e19..17e9f50 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -100,8 +100,6 @@ EXPORT_SYMBOL_GPL(xen_start_info);
 
 struct shared_info xen_dummy_shared_info;
 
-void *xen_initial_gdt;
-
 RESERVE_BRK(shared_info_page_brk, PAGE_SIZE);
 __read_mostly int xen_have_vector_callback;
 EXPORT_SYMBOL_GPL(xen_have_vector_callback);
@@ -511,8 +509,7 @@ static void xen_load_gdt(const struct desc_ptr *dtr)
 {
 	unsigned long va = dtr->address;
 	unsigned int size = dtr->size + 1;
-	unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
-	unsigned long frames[pages];
+	unsigned long frames[65536 / PAGE_SIZE];
 	int f;
 
 	/*
@@ -560,8 +557,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
 {
 	unsigned long va = dtr->address;
 	unsigned int size = dtr->size + 1;
-	unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
-	unsigned long frames[pages];
+	unsigned long frames[(GDT_SIZE + PAGE_SIZE - 1) / PAGE_SIZE];
 	int f;
 
 	/*
@@ -569,7 +565,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
 	 * 8-byte entries, or 16 4k pages..
 	 */
 
-	BUG_ON(size > 65536);
+	BUG_ON(size > GDT_SIZE);
 	BUG_ON(va & ~PAGE_MASK);
 
 	for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
@@ -954,7 +950,7 @@ static u32 xen_safe_apic_wait_icr_idle(void)
         return 0;
 }
 
-static void set_xen_basic_apic_ops(void)
+static void __init set_xen_basic_apic_ops(void)
 {
 	apic->read = xen_apic_read;
 	apic->write = xen_apic_write;
@@ -1260,30 +1256,30 @@ static const struct pv_apic_ops xen_apic_ops __initconst = {
 #endif
 };
 
-static void xen_reboot(int reason)
+static __noreturn void xen_reboot(int reason)
 {
 	struct sched_shutdown r = { .reason = reason };
 
-	if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r))
-		BUG();
+	HYPERVISOR_sched_op(SCHEDOP_shutdown, &r);
+	BUG();
 }
 
-static void xen_restart(char *msg)
+static __noreturn void xen_restart(char *msg)
 {
 	xen_reboot(SHUTDOWN_reboot);
 }
 
-static void xen_emergency_restart(void)
+static __noreturn void xen_emergency_restart(void)
 {
 	xen_reboot(SHUTDOWN_reboot);
 }
 
-static void xen_machine_halt(void)
+static __noreturn void xen_machine_halt(void)
 {
 	xen_reboot(SHUTDOWN_poweroff);
 }
 
-static void xen_machine_power_off(void)
+static __noreturn void xen_machine_power_off(void)
 {
 	if (pm_power_off)
 		pm_power_off();
@@ -1385,7 +1381,17 @@ asmlinkage void __init xen_start_kernel(void)
 	__userpte_alloc_gfp &= ~__GFP_HIGHMEM;
 
 	/* Work out if we support NX */
-	x86_configure_nx();
+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
+	if ((cpuid_eax(0x80000000) & 0xffff0000) == 0x80000000 &&
+	    (cpuid_edx(0x80000001) & (1U << (X86_FEATURE_NX & 31)))) {
+		unsigned l, h;
+
+		__supported_pte_mask |= _PAGE_NX;
+		rdmsr(MSR_EFER, l, h);
+		l |= EFER_NX;
+		wrmsr(MSR_EFER, l, h);
+	}
+#endif
 
 	xen_setup_features();
 
@@ -1416,13 +1422,6 @@ asmlinkage void __init xen_start_kernel(void)
 
 	machine_ops = xen_machine_ops;
 
-	/*
-	 * The only reliable way to retain the initial address of the
-	 * percpu gdt_page is to remember it here, so we can go and
-	 * mark it RW later, when the initial percpu area is freed.
-	 */
-	xen_initial_gdt = &per_cpu(gdt_page, 0);
-
 	xen_smp_init();
 
 #ifdef CONFIG_ACPI_NUMA
@@ -1616,7 +1615,7 @@ static int __cpuinit xen_hvm_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block xen_hvm_cpu_notifier __cpuinitdata = {
+static struct notifier_block xen_hvm_cpu_notifier = {
 	.notifier_call	= xen_hvm_cpu_notify,
 };
 
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index e006c18..b9a7d6c 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1894,6 +1894,9 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
 	/* L3_k[510] -> level2_kernel_pgt
 	 * L3_i[511] -> level2_fixmap_pgt */
 	convert_pfn_mfn(level3_kernel_pgt);
+	convert_pfn_mfn(level3_vmalloc_start_pgt);
+	convert_pfn_mfn(level3_vmalloc_end_pgt);
+	convert_pfn_mfn(level3_vmemmap_pgt);
 
 	/* We get [511][511] and have Xen's version of level2_kernel_pgt */
 	l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd);
@@ -1923,8 +1926,12 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
 	set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
 	set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
 	set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
+	set_page_prot(level3_vmalloc_start_pgt, PAGE_KERNEL_RO);
+	set_page_prot(level3_vmalloc_end_pgt, PAGE_KERNEL_RO);
+	set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO);
 	set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
 	set_page_prot(level2_ident_pgt, PAGE_KERNEL_RO);
+	set_page_prot(level2_vmemmap_pgt, PAGE_KERNEL_RO);
 	set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
 	set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
 
@@ -2110,6 +2117,7 @@ static void __init xen_post_allocator_init(void)
 	pv_mmu_ops.set_pud = xen_set_pud;
 #if PAGETABLE_LEVELS == 4
 	pv_mmu_ops.set_pgd = xen_set_pgd;
+	pv_mmu_ops.set_pgd_batched = xen_set_pgd;
 #endif
 
 	/* This will work as long as patching hasn't happened yet
@@ -2188,6 +2196,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
 	.pud_val = PV_CALLEE_SAVE(xen_pud_val),
 	.make_pud = PV_CALLEE_SAVE(xen_make_pud),
 	.set_pgd = xen_set_pgd_hyper,
+	.set_pgd_batched = xen_set_pgd_hyper,
 
 	.alloc_pud = xen_alloc_pmd_init,
 	.release_pud = xen_release_pmd_init,
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 22c800a..8915f1e 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -229,11 +229,6 @@ static void __init xen_smp_prepare_boot_cpu(void)
 {
 	BUG_ON(smp_processor_id() != 0);
 	native_smp_prepare_boot_cpu();
-
-	/* We've switched to the "real" per-cpu gdt, so make sure the
-	   old memory can be recycled */
-	make_lowmem_page_readwrite(xen_initial_gdt);
-
 	xen_filter_cpu_maps();
 	xen_setup_vcpu_info_placement();
 }
@@ -303,7 +298,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
 	ctxt->user_regs.ss = __KERNEL_DS;
 #ifdef CONFIG_X86_32
 	ctxt->user_regs.fs = __KERNEL_PERCPU;
-	ctxt->user_regs.gs = __KERNEL_STACK_CANARY;
+	savesegment(gs, ctxt->user_regs.gs);
 #else
 	ctxt->gs_base_kernel = per_cpu_offset(cpu);
 #endif
@@ -313,8 +308,8 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
 
 	{
 		ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */
-		ctxt->user_regs.ds = __USER_DS;
-		ctxt->user_regs.es = __USER_DS;
+		ctxt->user_regs.ds = __KERNEL_DS;
+		ctxt->user_regs.es = __KERNEL_DS;
 
 		xen_copy_trap_info(ctxt->trap_ctxt);
 
@@ -359,13 +354,12 @@ static int __cpuinit xen_cpu_up(unsigned int cpu, struct task_struct *idle)
 	int rc;
 
 	per_cpu(current_task, cpu) = idle;
+	per_cpu(current_tinfo, cpu) = &idle->tinfo;
 #ifdef CONFIG_X86_32
 	irq_ctx_init(cpu);
 #else
 	clear_tsk_thread_flag(idle, TIF_FORK);
-	per_cpu(kernel_stack, cpu) =
-		(unsigned long)task_stack_page(idle) -
-		KERNEL_STACK_OFFSET + THREAD_SIZE;
+	per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
 #endif
 	xen_setup_runstate_info(cpu);
 	xen_setup_timer(cpu);
@@ -634,7 +628,7 @@ static const struct smp_ops xen_smp_ops __initconst = {
 
 void __init xen_smp_init(void)
 {
-	smp_ops = xen_smp_ops;
+	memcpy((void *)&smp_ops, &xen_smp_ops, sizeof smp_ops);
 	xen_fill_possible_map();
 	xen_init_spinlocks();
 }
diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
index 33ca6e4..0ded929 100644
--- a/arch/x86/xen/xen-asm_32.S
+++ b/arch/x86/xen/xen-asm_32.S
@@ -84,14 +84,14 @@ ENTRY(xen_iret)
 	ESP_OFFSET=4	# bytes pushed onto stack
 
 	/*
-	 * Store vcpu_info pointer for easy access.  Do it this way to
-	 * avoid having to reload %fs
+	 * Store vcpu_info pointer for easy access.
 	 */
 #ifdef CONFIG_SMP
-	GET_THREAD_INFO(%eax)
-	movl %ss:TI_cpu(%eax), %eax
-	movl %ss:__per_cpu_offset(,%eax,4), %eax
-	mov %ss:xen_vcpu(%eax), %eax
+	push %fs
+	mov $(__KERNEL_PERCPU), %eax
+	mov %eax, %fs
+	mov PER_CPU_VAR(xen_vcpu), %eax
+	pop %fs
 #else
 	movl %ss:xen_vcpu, %eax
 #endif
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 7faed58..ba4427c 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -19,6 +19,17 @@ ENTRY(startup_xen)
 #ifdef CONFIG_X86_32
 	mov %esi,xen_start_info
 	mov $init_thread_union+THREAD_SIZE,%esp
+#ifdef CONFIG_SMP
+	movl $cpu_gdt_table,%edi
+	movl $__per_cpu_load,%eax
+	movw %ax,__KERNEL_PERCPU + 2(%edi)
+	rorl $16,%eax
+	movb %al,__KERNEL_PERCPU + 4(%edi)
+	movb %ah,__KERNEL_PERCPU + 7(%edi)
+	movl $__per_cpu_end - 1,%eax
+	subl $__per_cpu_start,%eax
+	movw %ax,__KERNEL_PERCPU + 0(%edi)
+#endif
 #else
 	mov %rsi,xen_start_info
 	mov $init_thread_union+THREAD_SIZE,%rsp
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index a95b417..b6dbd0b 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -10,8 +10,6 @@
 extern const char xen_hypervisor_callback[];
 extern const char xen_failsafe_callback[];
 
-extern void *xen_initial_gdt;
-
 struct trap_info;
 void xen_copy_trap_info(struct trap_info *traps);
 
diff --git a/arch/xtensa/variants/dc232b/include/variant/core.h b/arch/xtensa/variants/dc232b/include/variant/core.h
index 525bd3d..ef888b1 100644
--- a/arch/xtensa/variants/dc232b/include/variant/core.h
+++ b/arch/xtensa/variants/dc232b/include/variant/core.h
@@ -119,9 +119,9 @@
   ----------------------------------------------------------------------*/
 
 #define XCHAL_ICACHE_LINESIZE		32	/* I-cache line size in bytes */
-#define XCHAL_DCACHE_LINESIZE		32	/* D-cache line size in bytes */
 #define XCHAL_ICACHE_LINEWIDTH		5	/* log2(I line size in bytes) */
 #define XCHAL_DCACHE_LINEWIDTH		5	/* log2(D line size in bytes) */
+#define XCHAL_DCACHE_LINESIZE		(_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH)	/* D-cache line size in bytes */
 
 #define XCHAL_ICACHE_SIZE		16384	/* I-cache size in bytes or 0 */
 #define XCHAL_DCACHE_SIZE		16384	/* D-cache size in bytes or 0 */
diff --git a/arch/xtensa/variants/fsf/include/variant/core.h b/arch/xtensa/variants/fsf/include/variant/core.h
index 2f33760..835e50a 100644
--- a/arch/xtensa/variants/fsf/include/variant/core.h
+++ b/arch/xtensa/variants/fsf/include/variant/core.h
@@ -11,6 +11,7 @@
 #ifndef _XTENSA_CORE_H
 #define _XTENSA_CORE_H
 
+#include <linux/const.h>
 
 /****************************************************************************
 	    Parameters Useful for Any Code, USER or PRIVILEGED
@@ -112,9 +113,9 @@
   ----------------------------------------------------------------------*/
 
 #define XCHAL_ICACHE_LINESIZE		16	/* I-cache line size in bytes */
-#define XCHAL_DCACHE_LINESIZE		16	/* D-cache line size in bytes */
 #define XCHAL_ICACHE_LINEWIDTH		4	/* log2(I line size in bytes) */
 #define XCHAL_DCACHE_LINEWIDTH		4	/* log2(D line size in bytes) */
+#define XCHAL_DCACHE_LINESIZE		(_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
 
 #define XCHAL_ICACHE_SIZE		8192	/* I-cache size in bytes or 0 */
 #define XCHAL_DCACHE_SIZE		8192	/* D-cache size in bytes or 0 */
diff --git a/arch/xtensa/variants/s6000/include/variant/core.h b/arch/xtensa/variants/s6000/include/variant/core.h
index af00795..2bb8105 100644
--- a/arch/xtensa/variants/s6000/include/variant/core.h
+++ b/arch/xtensa/variants/s6000/include/variant/core.h
@@ -11,6 +11,7 @@
 #ifndef _XTENSA_CORE_CONFIGURATION_H
 #define _XTENSA_CORE_CONFIGURATION_H
 
+#include <linux/const.h>
 
 /****************************************************************************
 	    Parameters Useful for Any Code, USER or PRIVILEGED
@@ -118,9 +119,9 @@
   ----------------------------------------------------------------------*/
 
 #define XCHAL_ICACHE_LINESIZE		16	/* I-cache line size in bytes */
-#define XCHAL_DCACHE_LINESIZE		16	/* D-cache line size in bytes */
 #define XCHAL_ICACHE_LINEWIDTH		4	/* log2(I line size in bytes) */
 #define XCHAL_DCACHE_LINEWIDTH		4	/* log2(D line size in bytes) */
+#define XCHAL_DCACHE_LINESIZE		(_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH)	/* D-cache line size in bytes */
 
 #define XCHAL_ICACHE_SIZE		32768	/* I-cache size in bytes or 0 */
 #define XCHAL_DCACHE_SIZE		32768	/* D-cache size in bytes or 0 */
diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c
index 58916af..eb9dbcf6 100644
--- a/block/blk-iopoll.c
+++ b/block/blk-iopoll.c
@@ -77,7 +77,7 @@ void blk_iopoll_complete(struct blk_iopoll *iopoll)
 }
 EXPORT_SYMBOL(blk_iopoll_complete);
 
-static void blk_iopoll_softirq(struct softirq_action *h)
+static void blk_iopoll_softirq(void)
 {
 	struct list_head *list = &__get_cpu_var(blk_cpu_iopoll);
 	int rearm = 0, budget = blk_iopoll_budget;
@@ -209,7 +209,7 @@ static int __cpuinit blk_iopoll_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata blk_iopoll_cpu_notifier = {
+static struct notifier_block blk_iopoll_cpu_notifier = {
 	.notifier_call	= blk_iopoll_cpu_notify,
 };
 
diff --git a/block/blk-map.c b/block/blk-map.c
index 623e1cd..ca1e109 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -302,7 +302,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
 	if (!len || !kbuf)
 		return -EINVAL;
 
-	do_copy = !blk_rq_aligned(q, addr, len) || object_is_on_stack(kbuf);
+	do_copy = !blk_rq_aligned(q, addr, len) || object_starts_on_stack(kbuf);
 	if (do_copy)
 		bio = bio_copy_kern(q, kbuf, len, gfp_mask, reading);
 	else
diff --git a/block/blk-softirq.c b/block/blk-softirq.c
index 467c8de..f3628c5 100644
--- a/block/blk-softirq.c
+++ b/block/blk-softirq.c
@@ -18,7 +18,7 @@ static DEFINE_PER_CPU(struct list_head, blk_cpu_done);
  * Softirq action handler - move entries to local list and loop over them
  * while passing them to the queue registered handler.
  */
-static void blk_done_softirq(struct softirq_action *h)
+static void blk_done_softirq(void)
 {
 	struct list_head *cpu_list, local_list;
 
@@ -98,7 +98,7 @@ static int __cpuinit blk_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata blk_cpu_notifier = {
+static struct notifier_block blk_cpu_notifier = {
 	.notifier_call	= blk_cpu_notify,
 };
 
diff --git a/block/bsg.c b/block/bsg.c
index 420a5a9..23834aa 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -176,16 +176,24 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
 				struct sg_io_v4 *hdr, struct bsg_device *bd,
 				fmode_t has_write_perm)
 {
+	unsigned char tmpcmd[sizeof(rq->__cmd)];
+	unsigned char *cmdptr;
+
 	if (hdr->request_len > BLK_MAX_CDB) {
 		rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL);
 		if (!rq->cmd)
 			return -ENOMEM;
-	}
+		cmdptr = rq->cmd;
+	} else
+		cmdptr = tmpcmd;
 
-	if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request,
+	if (copy_from_user(cmdptr, (void __user *)(unsigned long)hdr->request,
 			   hdr->request_len))
 		return -EFAULT;
 
+	if (cmdptr != rq->cmd)
+		memcpy(rq->cmd, cmdptr, hdr->request_len);
+
 	if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) {
 		if (blk_verify_command(rq->cmd, has_write_perm))
 			return -EPERM;
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 7c668c8..db3521c 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -340,7 +340,7 @@ static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode,
 		err |= __get_user(f->spec1, &uf->spec1);
 		err |= __get_user(f->fmt_gap, &uf->fmt_gap);
 		err |= __get_user(name, &uf->name);
-		f->name = compat_ptr(name);
+		f->name = (void __force_kernel *)compat_ptr(name);
 		if (err) {
 			err = -EFAULT;
 			goto out;
diff --git a/block/partitions/efi.c b/block/partitions/efi.c
index ff5804e..a88acad 100644
--- a/block/partitions/efi.c
+++ b/block/partitions/efi.c
@@ -234,14 +234,14 @@ static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state,
 	if (!gpt)
 		return NULL;
 
+	if (!le32_to_cpu(gpt->num_partition_entries))
+		return NULL;
+	pte = kcalloc(le32_to_cpu(gpt->num_partition_entries), le32_to_cpu(gpt->sizeof_partition_entry), GFP_KERNEL);
+	if (!pte)
+		return NULL;
+
 	count = le32_to_cpu(gpt->num_partition_entries) *
                 le32_to_cpu(gpt->sizeof_partition_entry);
-	if (!count)
-		return NULL;
-	pte = kzalloc(count, GFP_KERNEL);
-	if (!pte)
-		return NULL;
-
 	if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba),
                      (u8 *) pte,
 		     count) < count) {
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 9a87daa..fb17486 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -223,8 +223,20 @@ EXPORT_SYMBOL(blk_verify_command);
 static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
 			     struct sg_io_hdr *hdr, fmode_t mode)
 {
-	if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
+	unsigned char tmpcmd[sizeof(rq->__cmd)];
+	unsigned char *cmdptr;
+
+	if (rq->cmd != rq->__cmd)
+		cmdptr = rq->cmd;
+	else
+		cmdptr = tmpcmd;
+
+	if (copy_from_user(cmdptr, hdr->cmdp, hdr->cmd_len))
 		return -EFAULT;
+
+	if (cmdptr != rq->cmd)
+		memcpy(rq->cmd, cmdptr, hdr->cmd_len);
+
 	if (blk_verify_command(rq->cmd, mode & FMODE_WRITE))
 		return -EPERM;
 
@@ -433,6 +445,8 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
 	int err;
 	unsigned int in_len, out_len, bytes, opcode, cmdlen;
 	char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE];
+	unsigned char tmpcmd[sizeof(rq->__cmd)];
+	unsigned char *cmdptr;
 
 	if (!sic)
 		return -EINVAL;
@@ -466,9 +480,18 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
 	 */
 	err = -EFAULT;
 	rq->cmd_len = cmdlen;
-	if (copy_from_user(rq->cmd, sic->data, cmdlen))
+
+	if (rq->cmd != rq->__cmd)
+		cmdptr = rq->cmd;
+	else
+		cmdptr = tmpcmd;
+
+	if (copy_from_user(cmdptr, sic->data, cmdlen))
 		goto error;
 
+	if (rq->cmd != cmdptr)
+		memcpy(rq->cmd, cmdptr, cmdlen);
+
 	if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
 		goto error;
 
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 7bdd61b..afec999 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -63,7 +63,7 @@ struct cryptd_blkcipher_ctx {
 
 struct cryptd_blkcipher_request_ctx {
 	crypto_completion_t complete;
-};
+} __no_const;
 
 struct cryptd_hash_ctx {
 	struct crypto_shash *child;
@@ -80,7 +80,7 @@ struct cryptd_aead_ctx {
 
 struct cryptd_aead_request_ctx {
 	crypto_completion_t complete;
-};
+} __no_const;
 
 static void cryptd_queue_worker(struct work_struct *work);
 
diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
index f220d64..d359ad6 100644
--- a/drivers/acpi/apei/apei-internal.h
+++ b/drivers/acpi/apei/apei-internal.h
@@ -20,7 +20,7 @@ typedef int (*apei_exec_ins_func_t)(struct apei_exec_context *ctx,
 struct apei_exec_ins_type {
 	u32 flags;
 	apei_exec_ins_func_t run;
-};
+} __do_const;
 
 struct apei_exec_context {
 	u32 ip;
diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
index fefc2ca..12a535d 100644
--- a/drivers/acpi/apei/cper.c
+++ b/drivers/acpi/apei/cper.c
@@ -39,12 +39,12 @@
  */
 u64 cper_next_record_id(void)
 {
-	static atomic64_t seq;
+	static atomic64_unchecked_t seq;
 
-	if (!atomic64_read(&seq))
-		atomic64_set(&seq, ((u64)get_seconds()) << 32);
+	if (!atomic64_read_unchecked(&seq))
+		atomic64_set_unchecked(&seq, ((u64)get_seconds()) << 32);
 
-	return atomic64_inc_return(&seq);
+	return atomic64_inc_return_unchecked(&seq);
 }
 EXPORT_SYMBOL_GPL(cper_next_record_id);
 
diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
index be60399..778b33e8 100644
--- a/drivers/acpi/bgrt.c
+++ b/drivers/acpi/bgrt.c
@@ -87,8 +87,10 @@ static int __init bgrt_init(void)
 		return -ENODEV;
 
 	sysfs_bin_attr_init(&image_attr);
-	image_attr.private = bgrt_image;
-	image_attr.size = bgrt_image_size;
+	pax_open_kernel();
+	*(void **)&image_attr.private = bgrt_image;
+	*(size_t *)&image_attr.size = bgrt_image_size;
+	pax_close_kernel();
 
 	bgrt_kobj = kobject_create_and_add("bgrt", acpi_kobj);
 	if (!bgrt_kobj)
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index cb96296..b81293b 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -52,7 +52,7 @@ struct acpi_blacklist_item {
 	u32 is_critical_error;
 };
 
-static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst;
 
 /*
  * POLICY: If *anything* doesn't work, put it on the blacklist.
@@ -193,7 +193,7 @@ static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst = {
 	{
 	.callback = dmi_disable_osi_vista,
 	.ident = "Fujitsu Siemens",
diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c
index 7586544..636a2f0 100644
--- a/drivers/acpi/ec_sys.c
+++ b/drivers/acpi/ec_sys.c
@@ -12,6 +12,7 @@
 #include <linux/acpi.h>
 #include <linux/debugfs.h>
 #include <linux/module.h>
+#include <linux/uaccess.h>
 #include "internal.h"
 
 MODULE_AUTHOR("Thomas Renninger <trenn@suse.de>");
@@ -34,7 +35,7 @@ static ssize_t acpi_ec_read_io(struct file *f, char __user *buf,
 	 * struct acpi_ec *ec = ((struct seq_file *)f->private_data)->private;
 	 */
 	unsigned int size = EC_SPACE_SIZE;
-	u8 *data = (u8 *) buf;
+	u8 data;
 	loff_t init_off = *off;
 	int err = 0;
 
@@ -47,9 +48,11 @@ static ssize_t acpi_ec_read_io(struct file *f, char __user *buf,
 		size = count;
 
 	while (size) {
-		err = ec_read(*off, &data[*off - init_off]);
+		err = ec_read(*off, &data);
 		if (err)
 			return err;
+		if (put_user(data, &buf[*off - init_off]))
+			return -EFAULT;
 		*off += 1;
 		size--;
 	}
@@ -65,7 +68,6 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf,
 
 	unsigned int size = count;
 	loff_t init_off = *off;
-	u8 *data = (u8 *) buf;
 	int err = 0;
 
 	if (*off >= EC_SPACE_SIZE)
@@ -76,7 +78,9 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf,
 	}
 
 	while (size) {
-		u8 byte_write = data[*off - init_off];
+		u8 byte_write;
+		if (get_user(byte_write, &buf[*off - init_off]))
+			return -EFAULT;
 		err = ec_write(*off, byte_write);
 		if (err)
 			return err;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index ee255c6..747c68b 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -986,7 +986,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
 {
 	int i, count = CPUIDLE_DRIVER_STATE_START;
 	struct acpi_processor_cx *cx;
-	struct cpuidle_state *state;
+	cpuidle_state_no_const *state;
 	struct cpuidle_driver *drv = &acpi_idle_driver;
 
 	if (!pr->flags.power_setup_done)
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 41c0504..f8c0836 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -420,11 +420,11 @@ static u32 num_counters;
 static struct attribute **all_attrs;
 static u32 acpi_gpe_count;
 
-static struct attribute_group interrupt_stats_attr_group = {
+static attribute_group_no_const interrupt_stats_attr_group = {
 	.name = "interrupts",
 };
 
-static struct kobj_attribute *counter_attrs;
+static kobj_attribute_no_const *counter_attrs;
 
 static void delete_gpe_attr_array(void)
 {
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 34c8216..f56c828 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -1230,7 +1230,7 @@ int ahci_kick_engine(struct ata_port *ap)
 }
 EXPORT_SYMBOL_GPL(ahci_kick_engine);
 
-static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
+static int __intentional_overflow(-1) ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
 				struct ata_taskfile *tf, int is_cmd, u16 flags,
 				unsigned long timeout_msec)
 {
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 63c743b..0422dc6 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4786,7 +4786,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
 	struct ata_port *ap;
 	unsigned int tag;
 
-	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+	BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
 	ap = qc->ap;
 
 	qc->flags = 0;
@@ -4802,7 +4802,7 @@ void __ata_qc_complete(struct ata_queued_cmd *qc)
 	struct ata_port *ap;
 	struct ata_link *link;
 
-	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+	BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
 	WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));
 	ap = qc->ap;
 	link = qc->dev->link;
@@ -5920,6 +5920,7 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
 		return;
 
 	spin_lock(&lock);
+	pax_open_kernel();
 
 	for (cur = ops->inherits; cur; cur = cur->inherits) {
 		void **inherit = (void **)cur;
@@ -5933,8 +5934,9 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
 		if (IS_ERR(*pp))
 			*pp = NULL;
 
-	ops->inherits = NULL;
+	*(struct ata_port_operations **)&ops->inherits = NULL;
 
+	pax_close_kernel();
 	spin_unlock(&lock);
 }
 
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 405022d..fb70e53 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -864,7 +864,9 @@ static int arasan_cf_probe(struct platform_device *pdev)
 	/* Handle platform specific quirks */
 	if (pdata->quirk) {
 		if (pdata->quirk & CF_BROKEN_PIO) {
-			ap->ops->set_piomode = NULL;
+			pax_open_kernel();
+			*(void **)&ap->ops->set_piomode = NULL;
+			pax_close_kernel();
 			ap->pio_mask = 0;
 		}
 		if (pdata->quirk & CF_BROKEN_MWDMA)
diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c
index f9b983a..887b9d8 100644
--- a/drivers/atm/adummy.c
+++ b/drivers/atm/adummy.c
@@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct sk_buff *skb)
 		vcc->pop(vcc, skb);
 	else
 		dev_kfree_skb_any(skb);
-	atomic_inc(&vcc->stats->tx);
+	atomic_inc_unchecked(&vcc->stats->tx);
 
 	return 0;
 }
diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
index 77a7480..05cde58 100644
--- a/drivers/atm/ambassador.c
+++ b/drivers/atm/ambassador.c
@@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, tx_out * tx) {
   PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx);
   
   // VC layer stats
-  atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
+  atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
   
   // free the descriptor
   kfree (tx_descr);
@@ -495,7 +495,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
 	  dump_skb ("<<<", vc, skb);
 	  
 	  // VC layer stats
-	  atomic_inc(&atm_vcc->stats->rx);
+	  atomic_inc_unchecked(&atm_vcc->stats->rx);
 	  __net_timestamp(skb);
 	  // end of our responsibility
 	  atm_vcc->push (atm_vcc, skb);
@@ -510,7 +510,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
       } else {
       	PRINTK (KERN_INFO, "dropped over-size frame");
 	// should we count this?
-	atomic_inc(&atm_vcc->stats->rx_drop);
+	atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
       }
       
     } else {
@@ -1338,7 +1338,7 @@ static int amb_send (struct atm_vcc * atm_vcc, struct sk_buff * skb) {
   }
   
   if (check_area (skb->data, skb->len)) {
-    atomic_inc(&atm_vcc->stats->tx_err);
+    atomic_inc_unchecked(&atm_vcc->stats->tx_err);
     return -ENOMEM; // ?
   }
   
diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
index 0e3f8f9..765a7a5 100644
--- a/drivers/atm/atmtcp.c
+++ b/drivers/atm/atmtcp.c
@@ -206,7 +206,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
 		if (vcc->pop) vcc->pop(vcc,skb);
 		else dev_kfree_skb(skb);
 		if (dev_data) return 0;
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		return -ENOLINK;
 	}
 	size = skb->len+sizeof(struct atmtcp_hdr);
@@ -214,7 +214,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
 	if (!new_skb) {
 		if (vcc->pop) vcc->pop(vcc,skb);
 		else dev_kfree_skb(skb);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		return -ENOBUFS;
 	}
 	hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr));
@@ -225,8 +225,8 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
 	if (vcc->pop) vcc->pop(vcc,skb);
 	else dev_kfree_skb(skb);
 	out_vcc->push(out_vcc,new_skb);
-	atomic_inc(&vcc->stats->tx);
-	atomic_inc(&out_vcc->stats->rx);
+	atomic_inc_unchecked(&vcc->stats->tx);
+	atomic_inc_unchecked(&out_vcc->stats->rx);
 	return 0;
 }
 
@@ -299,7 +299,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
 	out_vcc = find_vcc(dev, ntohs(hdr->vpi), ntohs(hdr->vci));
 	read_unlock(&vcc_sklist_lock);
 	if (!out_vcc) {
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		goto done;
 	}
 	skb_pull(skb,sizeof(struct atmtcp_hdr));
@@ -311,8 +311,8 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
 	__net_timestamp(new_skb);
 	skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
 	out_vcc->push(out_vcc,new_skb);
-	atomic_inc(&vcc->stats->tx);
-	atomic_inc(&out_vcc->stats->rx);
+	atomic_inc_unchecked(&vcc->stats->tx);
+	atomic_inc_unchecked(&out_vcc->stats->rx);
 done:
 	if (vcc->pop) vcc->pop(vcc,skb);
 	else dev_kfree_skb(skb);
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index b1955ba..b179940 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -522,7 +522,7 @@ static int rx_aal0(struct atm_vcc *vcc)
 		DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n",
 		    vcc->dev->number);
 		length = 0;
-		atomic_inc(&vcc->stats->rx_err);
+		atomic_inc_unchecked(&vcc->stats->rx_err);
 	}
 	else {
 		length = ATM_CELL_SIZE-1; /* no HEC */
@@ -577,7 +577,7 @@ static int rx_aal5(struct atm_vcc *vcc)
 			    size);
 		}
 		eff = length = 0;
-		atomic_inc(&vcc->stats->rx_err);
+		atomic_inc_unchecked(&vcc->stats->rx_err);
 	}
 	else {
 		size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2);
@@ -594,7 +594,7 @@ static int rx_aal5(struct atm_vcc *vcc)
 			    "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n",
 			    vcc->dev->number,vcc->vci,length,size << 2,descr);
 			length = eff = 0;
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 		}
 	}
 	skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL;
@@ -767,7 +767,7 @@ rx_dequeued++;
 			vcc->push(vcc,skb);
 			pushed++;
 		}
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 	}
 	wake_up(&eni_dev->rx_wait);
 }
@@ -1227,7 +1227,7 @@ static void dequeue_tx(struct atm_dev *dev)
 		    PCI_DMA_TODEVICE);
 		if (vcc->pop) vcc->pop(vcc,skb);
 		else dev_kfree_skb_irq(skb);
-		atomic_inc(&vcc->stats->tx);
+		atomic_inc_unchecked(&vcc->stats->tx);
 		wake_up(&eni_dev->tx_wait);
 dma_complete++;
 	}
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index b41c948..a002b17 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -749,7 +749,7 @@ static void process_txdone_queue (struct fs_dev *dev, struct queue *q)
 				}
 			}
 
-			atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
+			atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
 
 			fs_dprintk (FS_DEBUG_TXMEM, "i");
 			fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb);
@@ -816,7 +816,7 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
 #endif
 				skb_put (skb, qe->p1 & 0xffff); 
 				ATM_SKB(skb)->vcc = atm_vcc;
-				atomic_inc(&atm_vcc->stats->rx);
+				atomic_inc_unchecked(&atm_vcc->stats->rx);
 				__net_timestamp(skb);
 				fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
 				atm_vcc->push (atm_vcc, skb);
@@ -837,12 +837,12 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
 				kfree (pe);
 			}
 			if (atm_vcc)
-				atomic_inc(&atm_vcc->stats->rx_drop);
+				atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
 			break;
 		case 0x1f: /*  Reassembly abort: no buffers. */
 			/* Silently increment error counter. */
 			if (atm_vcc)
-				atomic_inc(&atm_vcc->stats->rx_drop);
+				atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
 			break;
 		default: /* Hmm. Haven't written the code to handle the others yet... -- REW */
 			printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n", 
diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
index 204814e..cede831 100644
--- a/drivers/atm/fore200e.c
+++ b/drivers/atm/fore200e.c
@@ -931,9 +931,9 @@ fore200e_tx_irq(struct fore200e* fore200e)
 #endif
 		/* check error condition */
 		if (*entry->status & STATUS_ERROR)
-		    atomic_inc(&vcc->stats->tx_err);
+		    atomic_inc_unchecked(&vcc->stats->tx_err);
 		else
-		    atomic_inc(&vcc->stats->tx);
+		    atomic_inc_unchecked(&vcc->stats->tx);
 	    }
 	}
 
@@ -1082,7 +1082,7 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
     if (skb == NULL) {
 	DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len);
 
-	atomic_inc(&vcc->stats->rx_drop);
+	atomic_inc_unchecked(&vcc->stats->rx_drop);
 	return -ENOMEM;
     } 
 
@@ -1125,14 +1125,14 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
 
 	dev_kfree_skb_any(skb);
 
-	atomic_inc(&vcc->stats->rx_drop);
+	atomic_inc_unchecked(&vcc->stats->rx_drop);
 	return -ENOMEM;
     }
 
     ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
 
     vcc->push(vcc, skb);
-    atomic_inc(&vcc->stats->rx);
+    atomic_inc_unchecked(&vcc->stats->rx);
 
     ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
 
@@ -1210,7 +1210,7 @@ fore200e_rx_irq(struct fore200e* fore200e)
 		DPRINTK(2, "damaged PDU on %d.%d.%d\n",
 			fore200e->atm_dev->number,
 			entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
-		atomic_inc(&vcc->stats->rx_err);
+		atomic_inc_unchecked(&vcc->stats->rx_err);
 	    }
 	}
 
@@ -1655,7 +1655,7 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
 		goto retry_here;
 	    }
 
-	    atomic_inc(&vcc->stats->tx_err);
+	    atomic_inc_unchecked(&vcc->stats->tx_err);
 
 	    fore200e->tx_sat++;
 	    DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n",
diff --git a/drivers/atm/he.c b/drivers/atm/he.c
index d689126..e78e412 100644
--- a/drivers/atm/he.c
+++ b/drivers/atm/he.c
@@ -1698,7 +1698,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
 
 		if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) {
 			hprintk("HBUF_ERR!  (cid 0x%x)\n", cid);
-				atomic_inc(&vcc->stats->rx_drop);
+				atomic_inc_unchecked(&vcc->stats->rx_drop);
 			goto return_host_buffers;
 		}
 
@@ -1725,7 +1725,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
 				RBRQ_LEN_ERR(he_dev->rbrq_head)
 							? "LEN_ERR" : "",
 							vcc->vpi, vcc->vci);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			goto return_host_buffers;
 		}
 
@@ -1777,7 +1777,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
 		vcc->push(vcc, skb);
 		spin_lock(&he_dev->global_lock);
 
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 
 return_host_buffers:
 		++pdus_assembled;
@@ -2103,7 +2103,7 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid)
 					tpd->vcc->pop(tpd->vcc, tpd->skb);
 				else
 					dev_kfree_skb_any(tpd->skb);
-				atomic_inc(&tpd->vcc->stats->tx_err);
+				atomic_inc_unchecked(&tpd->vcc->stats->tx_err);
 			}
 			pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status));
 			return;
@@ -2515,7 +2515,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
 			vcc->pop(vcc, skb);
 		else
 			dev_kfree_skb_any(skb);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		return -EINVAL;
 	}
 
@@ -2526,7 +2526,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
 			vcc->pop(vcc, skb);
 		else
 			dev_kfree_skb_any(skb);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		return -EINVAL;
 	}
 #endif
@@ -2538,7 +2538,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
 			vcc->pop(vcc, skb);
 		else
 			dev_kfree_skb_any(skb);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		spin_unlock_irqrestore(&he_dev->global_lock, flags);
 		return -ENOMEM;
 	}
@@ -2580,7 +2580,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
 					vcc->pop(vcc, skb);
 				else
 					dev_kfree_skb_any(skb);
-				atomic_inc(&vcc->stats->tx_err);
+				atomic_inc_unchecked(&vcc->stats->tx_err);
 				spin_unlock_irqrestore(&he_dev->global_lock, flags);
 				return -ENOMEM;
 			}
@@ -2611,7 +2611,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	__enqueue_tpd(he_dev, tpd, cid);
 	spin_unlock_irqrestore(&he_dev->global_lock, flags);
 
-	atomic_inc(&vcc->stats->tx);
+	atomic_inc_unchecked(&vcc->stats->tx);
 
 	return 0;
 }
diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
index 1dc0519..1aadaf7 100644
--- a/drivers/atm/horizon.c
+++ b/drivers/atm/horizon.c
@@ -1034,7 +1034,7 @@ static void rx_schedule (hrz_dev * dev, int irq) {
 	{
 	  struct atm_vcc * vcc = ATM_SKB(skb)->vcc;
 	  // VC layer stats
-	  atomic_inc(&vcc->stats->rx);
+	  atomic_inc_unchecked(&vcc->stats->rx);
 	  __net_timestamp(skb);
 	  // end of our responsibility
 	  vcc->push (vcc, skb);
@@ -1186,7 +1186,7 @@ static void tx_schedule (hrz_dev * const dev, int irq) {
 	dev->tx_iovec = NULL;
 	
 	// VC layer stats
-	atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
+	atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
 	
 	// free the skb
 	hrz_kfree_skb (skb);
diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index 272f009..a18ba55 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -812,7 +812,7 @@ drain_scq(struct idt77252_dev *card, struct vc_map *vc)
 		else
 			dev_kfree_skb(skb);
 
-		atomic_inc(&vcc->stats->tx);
+		atomic_inc_unchecked(&vcc->stats->tx);
 	}
 
 	atomic_dec(&scq->used);
@@ -1075,13 +1075,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 			if ((sb = dev_alloc_skb(64)) == NULL) {
 				printk("%s: Can't allocate buffers for aal0.\n",
 				       card->name);
-				atomic_add(i, &vcc->stats->rx_drop);
+				atomic_add_unchecked(i, &vcc->stats->rx_drop);
 				break;
 			}
 			if (!atm_charge(vcc, sb->truesize)) {
 				RXPRINTK("%s: atm_charge() dropped aal0 packets.\n",
 					 card->name);
-				atomic_add(i - 1, &vcc->stats->rx_drop);
+				atomic_add_unchecked(i - 1, &vcc->stats->rx_drop);
 				dev_kfree_skb(sb);
 				break;
 			}
@@ -1098,7 +1098,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 			ATM_SKB(sb)->vcc = vcc;
 			__net_timestamp(sb);
 			vcc->push(vcc, sb);
-			atomic_inc(&vcc->stats->rx);
+			atomic_inc_unchecked(&vcc->stats->rx);
 
 			cell += ATM_CELL_PAYLOAD;
 		}
@@ -1135,13 +1135,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 			         "(CDC: %08x)\n",
 			         card->name, len, rpp->len, readl(SAR_REG_CDC));
 			recycle_rx_pool_skb(card, rpp);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			return;
 		}
 		if (stat & SAR_RSQE_CRC) {
 			RXPRINTK("%s: AAL5 CRC error.\n", card->name);
 			recycle_rx_pool_skb(card, rpp);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			return;
 		}
 		if (skb_queue_len(&rpp->queue) > 1) {
@@ -1152,7 +1152,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 				RXPRINTK("%s: Can't alloc RX skb.\n",
 					 card->name);
 				recycle_rx_pool_skb(card, rpp);
-				atomic_inc(&vcc->stats->rx_err);
+				atomic_inc_unchecked(&vcc->stats->rx_err);
 				return;
 			}
 			if (!atm_charge(vcc, skb->truesize)) {
@@ -1171,7 +1171,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 			__net_timestamp(skb);
 
 			vcc->push(vcc, skb);
-			atomic_inc(&vcc->stats->rx);
+			atomic_inc_unchecked(&vcc->stats->rx);
 
 			return;
 		}
@@ -1193,7 +1193,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 		__net_timestamp(skb);
 
 		vcc->push(vcc, skb);
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 
 		if (skb->truesize > SAR_FB_SIZE_3)
 			add_rx_skb(card, 3, SAR_FB_SIZE_3, 1);
@@ -1304,14 +1304,14 @@ idt77252_rx_raw(struct idt77252_dev *card)
 		if (vcc->qos.aal != ATM_AAL0) {
 			RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n",
 				card->name, vpi, vci);
-			atomic_inc(&vcc->stats->rx_drop);
+			atomic_inc_unchecked(&vcc->stats->rx_drop);
 			goto drop;
 		}
 	
 		if ((sb = dev_alloc_skb(64)) == NULL) {
 			printk("%s: Can't allocate buffers for AAL0.\n",
 			       card->name);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			goto drop;
 		}
 
@@ -1330,7 +1330,7 @@ idt77252_rx_raw(struct idt77252_dev *card)
 		ATM_SKB(sb)->vcc = vcc;
 		__net_timestamp(sb);
 		vcc->push(vcc, sb);
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 
 drop:
 		skb_pull(queue, 64);
@@ -1955,13 +1955,13 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
 
 	if (vc == NULL) {
 		printk("%s: NULL connection in send().\n", card->name);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb(skb);
 		return -EINVAL;
 	}
 	if (!test_bit(VCF_TX, &vc->flags)) {
 		printk("%s: Trying to transmit on a non-tx VC.\n", card->name);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb(skb);
 		return -EINVAL;
 	}
@@ -1973,14 +1973,14 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
 		break;
 	default:
 		printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb(skb);
 		return -EINVAL;
 	}
 
 	if (skb_shinfo(skb)->nr_frags != 0) {
 		printk("%s: No scatter-gather yet.\n", card->name);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb(skb);
 		return -EINVAL;
 	}
@@ -1988,7 +1988,7 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
 
 	err = queue_skb(card, vc, skb, oam);
 	if (err) {
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb(skb);
 		return err;
 	}
@@ -2011,7 +2011,7 @@ idt77252_send_oam(struct atm_vcc *vcc, void *cell, int flags)
 	skb = dev_alloc_skb(64);
 	if (!skb) {
 		printk("%s: Out of memory in send_oam().\n", card->name);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		return -ENOMEM;
 	}
 	atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index 4217f29..88f547a 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -1145,7 +1145,7 @@ static int rx_pkt(struct atm_dev *dev)
 	status = (u_short) (buf_desc_ptr->desc_mode);  
 	if (status & (RX_CER | RX_PTE | RX_OFL))  
 	{  
-                atomic_inc(&vcc->stats->rx_err);
+                atomic_inc_unchecked(&vcc->stats->rx_err);
 		IF_ERR(printk("IA: bad packet, dropping it");)  
                 if (status & RX_CER) { 
                     IF_ERR(printk(" cause: packet CRC error\n");)
@@ -1168,7 +1168,7 @@ static int rx_pkt(struct atm_dev *dev)
 	len = dma_addr - buf_addr;  
         if (len > iadev->rx_buf_sz) {
            printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz);
-           atomic_inc(&vcc->stats->rx_err);
+           atomic_inc_unchecked(&vcc->stats->rx_err);
 	   goto out_free_desc;
         }
 		  
@@ -1318,7 +1318,7 @@ static void rx_dle_intr(struct atm_dev *dev)
           ia_vcc = INPH_IA_VCC(vcc);
           if (ia_vcc == NULL)
           {
-             atomic_inc(&vcc->stats->rx_err);
+             atomic_inc_unchecked(&vcc->stats->rx_err);
              atm_return(vcc, skb->truesize);
              dev_kfree_skb_any(skb);
              goto INCR_DLE;
@@ -1330,7 +1330,7 @@ static void rx_dle_intr(struct atm_dev *dev)
           if ((length > iadev->rx_buf_sz) || (length > 
                               (skb->len - sizeof(struct cpcs_trailer))))
           {
-             atomic_inc(&vcc->stats->rx_err);
+             atomic_inc_unchecked(&vcc->stats->rx_err);
              IF_ERR(printk("rx_dle_intr: Bad  AAL5 trailer %d (skb len %d)", 
                                                             length, skb->len);)
              atm_return(vcc, skb->truesize);
@@ -1346,7 +1346,7 @@ static void rx_dle_intr(struct atm_dev *dev)
 
 	  IF_RX(printk("rx_dle_intr: skb push");)  
 	  vcc->push(vcc,skb);  
-	  atomic_inc(&vcc->stats->rx);
+	  atomic_inc_unchecked(&vcc->stats->rx);
           iadev->rx_pkt_cnt++;
       }  
 INCR_DLE:
@@ -2826,15 +2826,15 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg)
          {
              struct k_sonet_stats *stats;
              stats = &PRIV(_ia_dev[board])->sonet_stats;
-             printk("section_bip: %d\n", atomic_read(&stats->section_bip));
-             printk("line_bip   : %d\n", atomic_read(&stats->line_bip));
-             printk("path_bip   : %d\n", atomic_read(&stats->path_bip));
-             printk("line_febe  : %d\n", atomic_read(&stats->line_febe));
-             printk("path_febe  : %d\n", atomic_read(&stats->path_febe));
-             printk("corr_hcs   : %d\n", atomic_read(&stats->corr_hcs));
-             printk("uncorr_hcs : %d\n", atomic_read(&stats->uncorr_hcs));
-             printk("tx_cells   : %d\n", atomic_read(&stats->tx_cells));
-             printk("rx_cells   : %d\n", atomic_read(&stats->rx_cells));
+             printk("section_bip: %d\n", atomic_read_unchecked(&stats->section_bip));
+             printk("line_bip   : %d\n", atomic_read_unchecked(&stats->line_bip));
+             printk("path_bip   : %d\n", atomic_read_unchecked(&stats->path_bip));
+             printk("line_febe  : %d\n", atomic_read_unchecked(&stats->line_febe));
+             printk("path_febe  : %d\n", atomic_read_unchecked(&stats->path_febe));
+             printk("corr_hcs   : %d\n", atomic_read_unchecked(&stats->corr_hcs));
+             printk("uncorr_hcs : %d\n", atomic_read_unchecked(&stats->uncorr_hcs));
+             printk("tx_cells   : %d\n", atomic_read_unchecked(&stats->tx_cells));
+             printk("rx_cells   : %d\n", atomic_read_unchecked(&stats->rx_cells));
          }
             ia_cmds.status = 0;
             break;
@@ -2939,7 +2939,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
 	if ((desc == 0) || (desc > iadev->num_tx_desc))  
 	{  
 		IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);) 
-                atomic_inc(&vcc->stats->tx);
+                atomic_inc_unchecked(&vcc->stats->tx);
 		if (vcc->pop)   
 		    vcc->pop(vcc, skb);   
 		else  
@@ -3044,14 +3044,14 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
         ATM_DESC(skb) = vcc->vci;
         skb_queue_tail(&iadev->tx_dma_q, skb);
 
-        atomic_inc(&vcc->stats->tx);
+        atomic_inc_unchecked(&vcc->stats->tx);
         iadev->tx_pkt_cnt++;
 	/* Increment transaction counter */  
 	writel(2, iadev->dma+IPHASE5575_TX_COUNTER);  
         
 #if 0        
         /* add flow control logic */ 
-        if (atomic_read(&vcc->stats->tx) % 20 == 0) {
+        if (atomic_read_unchecked(&vcc->stats->tx) % 20 == 0) {
           if (iavcc->vc_desc_cnt > 10) {
              vcc->tx_quota =  vcc->tx_quota * 3 / 4;
             printk("Tx1:  vcc->tx_quota = %d \n", (u32)vcc->tx_quota );
diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
index fa7d701..1e404c7 100644
--- a/drivers/atm/lanai.c
+++ b/drivers/atm/lanai.c
@@ -1303,7 +1303,7 @@ static void lanai_send_one_aal5(struct lanai_dev *lanai,
 	vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0);
 	lanai_endtx(lanai, lvcc);
 	lanai_free_skb(lvcc->tx.atmvcc, skb);
-	atomic_inc(&lvcc->tx.atmvcc->stats->tx);
+	atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx);
 }
 
 /* Try to fill the buffer - don't call unless there is backlog */
@@ -1426,7 +1426,7 @@ static void vcc_rx_aal5(struct lanai_vcc *lvcc, int endptr)
 	ATM_SKB(skb)->vcc = lvcc->rx.atmvcc;
 	__net_timestamp(skb);
 	lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb);
-	atomic_inc(&lvcc->rx.atmvcc->stats->rx);
+	atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx);
     out:
 	lvcc->rx.buf.ptr = end;
 	cardvcc_write(lvcc, endptr, vcc_rxreadptr);
@@ -1667,7 +1667,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
 		DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 "
 		    "vcc %d\n", lanai->number, (unsigned int) s, vci);
 		lanai->stats.service_rxnotaal5++;
-		atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
+		atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
 		return 0;
 	}
 	if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) {
@@ -1679,7 +1679,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
 		int bytes;
 		read_unlock(&vcc_sklist_lock);
 		DPRINTK("got trashed rx pdu on vci %d\n", vci);
-		atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
+		atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
 		lvcc->stats.x.aal5.service_trash++;
 		bytes = (SERVICE_GET_END(s) * 16) -
 		    (((unsigned long) lvcc->rx.buf.ptr) -
@@ -1691,7 +1691,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
 	}
 	if (s & SERVICE_STREAM) {
 		read_unlock(&vcc_sklist_lock);
-		atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
+		atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
 		lvcc->stats.x.aal5.service_stream++;
 		printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream "
 		    "PDU on VCI %d!\n", lanai->number, vci);
@@ -1699,7 +1699,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
 		return 0;
 	}
 	DPRINTK("got rx crc error on vci %d\n", vci);
-	atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
+	atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
 	lvcc->stats.x.aal5.service_rxcrc++;
 	lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4];
 	cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr);
diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
index 6587dc2..149833d 100644
--- a/drivers/atm/nicstar.c
+++ b/drivers/atm/nicstar.c
@@ -1641,7 +1641,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	if ((vc = (vc_map *) vcc->dev_data) == NULL) {
 		printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n",
 		       card->index);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb_any(skb);
 		return -EINVAL;
 	}
@@ -1649,7 +1649,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	if (!vc->tx) {
 		printk("nicstar%d: Trying to transmit on a non-tx VC.\n",
 		       card->index);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb_any(skb);
 		return -EINVAL;
 	}
@@ -1657,14 +1657,14 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) {
 		printk("nicstar%d: Only AAL0 and AAL5 are supported.\n",
 		       card->index);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb_any(skb);
 		return -EINVAL;
 	}
 
 	if (skb_shinfo(skb)->nr_frags != 0) {
 		printk("nicstar%d: No scatter-gather yet.\n", card->index);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb_any(skb);
 		return -EINVAL;
 	}
@@ -1712,11 +1712,11 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	}
 
 	if (push_scqe(card, vc, scq, &scqe, skb) != 0) {
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb_any(skb);
 		return -EIO;
 	}
-	atomic_inc(&vcc->stats->tx);
+	atomic_inc_unchecked(&vcc->stats->tx);
 
 	return 0;
 }
@@ -2033,14 +2033,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 				printk
 				    ("nicstar%d: Can't allocate buffers for aal0.\n",
 				     card->index);
-				atomic_add(i, &vcc->stats->rx_drop);
+				atomic_add_unchecked(i, &vcc->stats->rx_drop);
 				break;
 			}
 			if (!atm_charge(vcc, sb->truesize)) {
 				RXPRINTK
 				    ("nicstar%d: atm_charge() dropped aal0 packets.\n",
 				     card->index);
-				atomic_add(i - 1, &vcc->stats->rx_drop);	/* already increased by 1 */
+				atomic_add_unchecked(i - 1, &vcc->stats->rx_drop);	/* already increased by 1 */
 				dev_kfree_skb_any(sb);
 				break;
 			}
@@ -2055,7 +2055,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			ATM_SKB(sb)->vcc = vcc;
 			__net_timestamp(sb);
 			vcc->push(vcc, sb);
-			atomic_inc(&vcc->stats->rx);
+			atomic_inc_unchecked(&vcc->stats->rx);
 			cell += ATM_CELL_PAYLOAD;
 		}
 
@@ -2072,7 +2072,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			if (iovb == NULL) {
 				printk("nicstar%d: Out of iovec buffers.\n",
 				       card->index);
-				atomic_inc(&vcc->stats->rx_drop);
+				atomic_inc_unchecked(&vcc->stats->rx_drop);
 				recycle_rx_buf(card, skb);
 				return;
 			}
@@ -2096,7 +2096,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 		   small or large buffer itself. */
 	} else if (NS_PRV_IOVCNT(iovb) >= NS_MAX_IOVECS) {
 		printk("nicstar%d: received too big AAL5 SDU.\n", card->index);
-		atomic_inc(&vcc->stats->rx_err);
+		atomic_inc_unchecked(&vcc->stats->rx_err);
 		recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
 				      NS_MAX_IOVECS);
 		NS_PRV_IOVCNT(iovb) = 0;
@@ -2116,7 +2116,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			    ("nicstar%d: Expected a small buffer, and this is not one.\n",
 			     card->index);
 			which_list(card, skb);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			recycle_rx_buf(card, skb);
 			vc->rx_iov = NULL;
 			recycle_iov_buf(card, iovb);
@@ -2129,7 +2129,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			    ("nicstar%d: Expected a large buffer, and this is not one.\n",
 			     card->index);
 			which_list(card, skb);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
 					      NS_PRV_IOVCNT(iovb));
 			vc->rx_iov = NULL;
@@ -2152,7 +2152,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 				printk(" - PDU size mismatch.\n");
 			else
 				printk(".\n");
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
 					      NS_PRV_IOVCNT(iovb));
 			vc->rx_iov = NULL;
@@ -2166,7 +2166,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			/* skb points to a small buffer */
 			if (!atm_charge(vcc, skb->truesize)) {
 				push_rxbufs(card, skb);
-				atomic_inc(&vcc->stats->rx_drop);
+				atomic_inc_unchecked(&vcc->stats->rx_drop);
 			} else {
 				skb_put(skb, len);
 				dequeue_sm_buf(card, skb);
@@ -2176,7 +2176,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 				ATM_SKB(skb)->vcc = vcc;
 				__net_timestamp(skb);
 				vcc->push(vcc, skb);
-				atomic_inc(&vcc->stats->rx);
+				atomic_inc_unchecked(&vcc->stats->rx);
 			}
 		} else if (NS_PRV_IOVCNT(iovb) == 2) {	/* One small plus one large buffer */
 			struct sk_buff *sb;
@@ -2187,7 +2187,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			if (len <= NS_SMBUFSIZE) {
 				if (!atm_charge(vcc, sb->truesize)) {
 					push_rxbufs(card, sb);
-					atomic_inc(&vcc->stats->rx_drop);
+					atomic_inc_unchecked(&vcc->stats->rx_drop);
 				} else {
 					skb_put(sb, len);
 					dequeue_sm_buf(card, sb);
@@ -2197,7 +2197,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 					ATM_SKB(sb)->vcc = vcc;
 					__net_timestamp(sb);
 					vcc->push(vcc, sb);
-					atomic_inc(&vcc->stats->rx);
+					atomic_inc_unchecked(&vcc->stats->rx);
 				}
 
 				push_rxbufs(card, skb);
@@ -2206,7 +2206,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 
 				if (!atm_charge(vcc, skb->truesize)) {
 					push_rxbufs(card, skb);
-					atomic_inc(&vcc->stats->rx_drop);
+					atomic_inc_unchecked(&vcc->stats->rx_drop);
 				} else {
 					dequeue_lg_buf(card, skb);
 #ifdef NS_USE_DESTRUCTORS
@@ -2219,7 +2219,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 					ATM_SKB(skb)->vcc = vcc;
 					__net_timestamp(skb);
 					vcc->push(vcc, skb);
-					atomic_inc(&vcc->stats->rx);
+					atomic_inc_unchecked(&vcc->stats->rx);
 				}
 
 				push_rxbufs(card, sb);
@@ -2240,7 +2240,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 					printk
 					    ("nicstar%d: Out of huge buffers.\n",
 					     card->index);
-					atomic_inc(&vcc->stats->rx_drop);
+					atomic_inc_unchecked(&vcc->stats->rx_drop);
 					recycle_iovec_rx_bufs(card,
 							      (struct iovec *)
 							      iovb->data,
@@ -2291,7 +2291,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 					card->hbpool.count++;
 				} else
 					dev_kfree_skb_any(hb);
-				atomic_inc(&vcc->stats->rx_drop);
+				atomic_inc_unchecked(&vcc->stats->rx_drop);
 			} else {
 				/* Copy the small buffer to the huge buffer */
 				sb = (struct sk_buff *)iov->iov_base;
@@ -2328,7 +2328,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 #endif /* NS_USE_DESTRUCTORS */
 				__net_timestamp(hb);
 				vcc->push(vcc, hb);
-				atomic_inc(&vcc->stats->rx);
+				atomic_inc_unchecked(&vcc->stats->rx);
 			}
 		}
 
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index 32784d1..4a8434a 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -838,7 +838,7 @@ void solos_bh(unsigned long card_arg)
 				}
 				atm_charge(vcc, skb->truesize);
 				vcc->push(vcc, skb);
-				atomic_inc(&vcc->stats->rx);
+				atomic_inc_unchecked(&vcc->stats->rx);
 				break;
 
 			case PKT_STATUS:
@@ -1116,7 +1116,7 @@ static uint32_t fpga_tx(struct solos_card *card)
 			vcc = SKB_CB(oldskb)->vcc;
 
 			if (vcc) {
-				atomic_inc(&vcc->stats->tx);
+				atomic_inc_unchecked(&vcc->stats->tx);
 				solos_pop(vcc, oldskb);
 			} else {
 				dev_kfree_skb_irq(oldskb);
diff --git a/drivers/atm/suni.c b/drivers/atm/suni.c
index 0215934..ce9f5b1 100644
--- a/drivers/atm/suni.c
+++ b/drivers/atm/suni.c
@@ -49,8 +49,8 @@ static DEFINE_SPINLOCK(sunis_lock);
 
 
 #define ADD_LIMITED(s,v) \
-    atomic_add((v),&stats->s); \
-    if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX);
+    atomic_add_unchecked((v),&stats->s); \
+    if (atomic_read_unchecked(&stats->s) < 0) atomic_set_unchecked(&stats->s,INT_MAX);
 
 
 static void suni_hz(unsigned long from_timer)
diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c
index 5120a96..e2572bd 100644
--- a/drivers/atm/uPD98402.c
+++ b/drivers/atm/uPD98402.c
@@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int ze
 	struct sonet_stats tmp;
  	int error = 0;
 
-	atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
+	atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
 	sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp);
 	if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp));
 	if (zero && !error) {
@@ -161,9 +161,9 @@ static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
 
 
 #define ADD_LIMITED(s,v) \
-    { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \
-    if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \
-	atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); }
+    { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \
+    if (atomic_read_unchecked(&PRIV(dev)->sonet_stats.s) < 0) \
+	atomic_set_unchecked(&PRIV(dev)->sonet_stats.s,INT_MAX); }
 
 
 static void stat_event(struct atm_dev *dev)
@@ -194,7 +194,7 @@ static void uPD98402_int(struct atm_dev *dev)
 		if (reason & uPD98402_INT_PFM) stat_event(dev);
 		if (reason & uPD98402_INT_PCO) {
 			(void) GET(PCOCR); /* clear interrupt cause */
-			atomic_add(GET(HECCT),
+			atomic_add_unchecked(GET(HECCT),
 			    &PRIV(dev)->sonet_stats.uncorr_hcs);
 		}
 		if ((reason & uPD98402_INT_RFO) && 
@@ -222,9 +222,9 @@ static int uPD98402_start(struct atm_dev *dev)
 	PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO |
 	  uPD98402_INT_LOS),PIMR); /* enable them */
 	(void) fetch_stats(dev,NULL,1); /* clear kernel counters */
-	atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1);
-	atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1);
-	atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1);
+	atomic_set_unchecked(&PRIV(dev)->sonet_stats.corr_hcs,-1);
+	atomic_set_unchecked(&PRIV(dev)->sonet_stats.tx_cells,-1);
+	atomic_set_unchecked(&PRIV(dev)->sonet_stats.rx_cells,-1);
 	return 0;
 }
 
diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
index 969c3c2..9b72956 100644
--- a/drivers/atm/zatm.c
+++ b/drivers/atm/zatm.c
@@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
 		}
 		if (!size) {
 			dev_kfree_skb_irq(skb);
-			if (vcc) atomic_inc(&vcc->stats->rx_err);
+			if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err);
 			continue;
 		}
 		if (!atm_charge(vcc,skb->truesize)) {
@@ -469,7 +469,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
 		skb->len = size;
 		ATM_SKB(skb)->vcc = vcc;
 		vcc->push(vcc,skb);
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 	}
 	zout(pos & 0xffff,MTA(mbx));
 #if 0 /* probably a stupid idea */
@@ -733,7 +733,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD_V | uPD98401_TXPD_DP |
 			skb_queue_head(&zatm_vcc->backlog,skb);
 			break;
 		}
-	atomic_inc(&vcc->stats->tx);
+	atomic_inc_unchecked(&vcc->stats->tx);
 	wake_up(&zatm_vcc->tx_wait);
 }
 
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 519865b..e540db3 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -1163,7 +1163,7 @@ int subsys_interface_register(struct subsys_interface *sif)
 		return -EINVAL;
 
 	mutex_lock(&subsys->p->mutex);
-	list_add_tail(&sif->node, &subsys->p->interfaces);
+	pax_list_add_tail((struct list_head *)&sif->node, &subsys->p->interfaces);
 	if (sif->add_dev) {
 		subsys_dev_iter_init(&iter, subsys, NULL, NULL);
 		while ((dev = subsys_dev_iter_next(&iter)))
@@ -1188,7 +1188,7 @@ void subsys_interface_unregister(struct subsys_interface *sif)
 	subsys = sif->subsys;
 
 	mutex_lock(&subsys->p->mutex);
-	list_del_init(&sif->node);
+	pax_list_del_init((struct list_head *)&sif->node);
 	if (sif->remove_dev) {
 		subsys_dev_iter_init(&iter, subsys, NULL, NULL);
 		while ((dev = subsys_dev_iter_next(&iter)))
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 01fc5b0..917801f 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -348,7 +348,7 @@ int devtmpfs_mount(const char *mntdir)
 	if (!thread)
 		return 0;
 
-	err = sys_mount("devtmpfs", (char *)mntdir, "devtmpfs", MS_SILENT, NULL);
+	err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)mntdir, (char __force_user *)"devtmpfs", MS_SILENT, NULL);
 	if (err)
 		printk(KERN_INFO "devtmpfs: error mounting %i\n", err);
 	else
@@ -373,11 +373,11 @@ static int devtmpfsd(void *p)
 	*err = sys_unshare(CLONE_NEWNS);
 	if (*err)
 		goto out;
-	*err = sys_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, options);
+	*err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)"/", (char __force_user *)"devtmpfs", MS_SILENT, (char __force_user *)options);
 	if (*err)
 		goto out;
-	sys_chdir("/.."); /* will traverse into overmounted root */
-	sys_chroot(".");
+	sys_chdir((char __force_user *)"/.."); /* will traverse into overmounted root */
+	sys_chroot((char __force_user *)".");
 	complete(&setup_done);
 	while (1) {
 		spin_lock(&req_lock);
diff --git a/drivers/base/node.c b/drivers/base/node.c
index fac124a..66bd4ab 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -625,7 +625,7 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
 struct node_attr {
 	struct device_attribute attr;
 	enum node_states state;
-};
+} __do_const;
 
 static ssize_t show_node_state(struct device *dev,
 			       struct device_attribute *attr, char *buf)
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 9a6b05a..2fc8fb9 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1850,7 +1850,7 @@ int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state)
 {
 	struct cpuidle_driver *cpuidle_drv;
 	struct gpd_cpu_data *cpu_data;
-	struct cpuidle_state *idle_state;
+	cpuidle_state_no_const *idle_state;
 	int ret = 0;
 
 	if (IS_ERR_OR_NULL(genpd) || state < 0)
@@ -1918,7 +1918,7 @@ int pm_genpd_name_attach_cpuidle(const char *name, int state)
 int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd)
 {
 	struct gpd_cpu_data *cpu_data;
-	struct cpuidle_state *idle_state;
+	cpuidle_state_no_const *idle_state;
 	int ret = 0;
 
 	if (IS_ERR_OR_NULL(genpd))
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 79715e7..df06b3b 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -29,14 +29,14 @@ bool events_check_enabled __read_mostly;
  * They need to be modified together atomically, so it's better to use one
  * atomic variable to hold them both.
  */
-static atomic_t combined_event_count = ATOMIC_INIT(0);
+static atomic_unchecked_t combined_event_count = ATOMIC_INIT(0);
 
 #define IN_PROGRESS_BITS	(sizeof(int) * 4)
 #define MAX_IN_PROGRESS		((1 << IN_PROGRESS_BITS) - 1)
 
 static void split_counters(unsigned int *cnt, unsigned int *inpr)
 {
-	unsigned int comb = atomic_read(&combined_event_count);
+	unsigned int comb = atomic_read_unchecked(&combined_event_count);
 
 	*cnt = (comb >> IN_PROGRESS_BITS);
 	*inpr = comb & MAX_IN_PROGRESS;
@@ -395,7 +395,7 @@ static void wakeup_source_activate(struct wakeup_source *ws)
 		ws->start_prevent_time = ws->last_time;
 
 	/* Increment the counter of events in progress. */
-	cec = atomic_inc_return(&combined_event_count);
+	cec = atomic_inc_return_unchecked(&combined_event_count);
 
 	trace_wakeup_source_activate(ws->name, cec);
 }
@@ -521,7 +521,7 @@ static void wakeup_source_deactivate(struct wakeup_source *ws)
 	 * Increment the counter of registered wakeup events and decrement the
 	 * couter of wakeup events in progress simultaneously.
 	 */
-	cec = atomic_add_return(MAX_IN_PROGRESS, &combined_event_count);
+	cec = atomic_add_return_unchecked(MAX_IN_PROGRESS, &combined_event_count);
 	trace_wakeup_source_deactivate(ws->name, cec);
 
 	split_counters(&cnt, &inpr);
diff --git a/drivers/base/syscore.c b/drivers/base/syscore.c
index e8d11b6..7b1b36f 100644
--- a/drivers/base/syscore.c
+++ b/drivers/base/syscore.c
@@ -21,7 +21,7 @@ static DEFINE_MUTEX(syscore_ops_lock);
 void register_syscore_ops(struct syscore_ops *ops)
 {
 	mutex_lock(&syscore_ops_lock);
-	list_add_tail(&ops->node, &syscore_ops_list);
+	pax_list_add_tail((struct list_head *)&ops->node, &syscore_ops_list);
 	mutex_unlock(&syscore_ops_lock);
 }
 EXPORT_SYMBOL_GPL(register_syscore_ops);
@@ -33,7 +33,7 @@ EXPORT_SYMBOL_GPL(register_syscore_ops);
 void unregister_syscore_ops(struct syscore_ops *ops)
 {
 	mutex_lock(&syscore_ops_lock);
-	list_del(&ops->node);
+	pax_list_del((struct list_head *)&ops->node);
 	mutex_unlock(&syscore_ops_lock);
 }
 EXPORT_SYMBOL_GPL(unregister_syscore_ops);
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 1c1b8e5..b7fc681 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -1196,6 +1196,8 @@ static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
 	int err;
 	u32 cp;
 
+	memset(&arg64, 0, sizeof(arg64));
+
 	err = 0;
 	err |=
 	    copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
@@ -3005,7 +3007,7 @@ static void start_io(ctlr_info_t *h)
 	while (!list_empty(&h->reqQ)) {
 		c = list_entry(h->reqQ.next, CommandList_struct, list);
 		/* can't do anything if fifo is full */
-		if ((h->access.fifo_full(h))) {
+		if ((h->access->fifo_full(h))) {
 			dev_warn(&h->pdev->dev, "fifo full\n");
 			break;
 		}
@@ -3015,7 +3017,7 @@ static void start_io(ctlr_info_t *h)
 		h->Qdepth--;
 
 		/* Tell the controller execute command */
-		h->access.submit_command(h, c);
+		h->access->submit_command(h, c);
 
 		/* Put job onto the completed Q */
 		addQ(&h->cmpQ, c);
@@ -3441,17 +3443,17 @@ startio:
 
 static inline unsigned long get_next_completion(ctlr_info_t *h)
 {
-	return h->access.command_completed(h);
+	return h->access->command_completed(h);
 }
 
 static inline int interrupt_pending(ctlr_info_t *h)
 {
-	return h->access.intr_pending(h);
+	return h->access->intr_pending(h);
 }
 
 static inline long interrupt_not_for_us(ctlr_info_t *h)
 {
-	return ((h->access.intr_pending(h) == 0) ||
+	return ((h->access->intr_pending(h) == 0) ||
 		(h->interrupts_enabled == 0));
 }
 
@@ -3484,7 +3486,7 @@ static inline u32 next_command(ctlr_info_t *h)
 	u32 a;
 
 	if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
-		return h->access.command_completed(h);
+		return h->access->command_completed(h);
 
 	if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
 		a = *(h->reply_pool_head); /* Next cmd in ring buffer */
@@ -4041,7 +4043,7 @@ static void cciss_put_controller_into_performant_mode(ctlr_info_t *h)
 		trans_support & CFGTBL_Trans_use_short_tags);
 
 	/* Change the access methods to the performant access methods */
-	h->access = SA5_performant_access;
+	h->access = &SA5_performant_access;
 	h->transMethod = CFGTBL_Trans_Performant;
 
 	return;
@@ -4310,7 +4312,7 @@ static int cciss_pci_init(ctlr_info_t *h)
 	if (prod_index < 0)
 		return -ENODEV;
 	h->product_name = products[prod_index].product_name;
-	h->access = *(products[prod_index].access);
+	h->access = products[prod_index].access;
 
 	if (cciss_board_disabled(h)) {
 		dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
@@ -5032,7 +5034,7 @@ reinit_after_soft_reset:
 	}
 
 	/* make sure the board interrupts are off */
-	h->access.set_intr_mask(h, CCISS_INTR_OFF);
+	h->access->set_intr_mask(h, CCISS_INTR_OFF);
 	rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx);
 	if (rc)
 		goto clean2;
@@ -5082,7 +5084,7 @@ reinit_after_soft_reset:
 		 * fake ones to scoop up any residual completions.
 		 */
 		spin_lock_irqsave(&h->lock, flags);
-		h->access.set_intr_mask(h, CCISS_INTR_OFF);
+		h->access->set_intr_mask(h, CCISS_INTR_OFF);
 		spin_unlock_irqrestore(&h->lock, flags);
 		free_irq(h->intr[h->intr_mode], h);
 		rc = cciss_request_irq(h, cciss_msix_discard_completions,
@@ -5102,9 +5104,9 @@ reinit_after_soft_reset:
 		dev_info(&h->pdev->dev, "Board READY.\n");
 		dev_info(&h->pdev->dev,
 			"Waiting for stale completions to drain.\n");
-		h->access.set_intr_mask(h, CCISS_INTR_ON);
+		h->access->set_intr_mask(h, CCISS_INTR_ON);
 		msleep(10000);
-		h->access.set_intr_mask(h, CCISS_INTR_OFF);
+		h->access->set_intr_mask(h, CCISS_INTR_OFF);
 
 		rc = controller_reset_failed(h->cfgtable);
 		if (rc)
@@ -5127,7 +5129,7 @@ reinit_after_soft_reset:
 	cciss_scsi_setup(h);
 
 	/* Turn the interrupts on so we can service requests */
-	h->access.set_intr_mask(h, CCISS_INTR_ON);
+	h->access->set_intr_mask(h, CCISS_INTR_ON);
 
 	/* Get the firmware version */
 	inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL);
@@ -5199,7 +5201,7 @@ static void cciss_shutdown(struct pci_dev *pdev)
 	kfree(flush_buf);
 	if (return_code != IO_OK)
 		dev_warn(&h->pdev->dev, "Error flushing cache\n");
-	h->access.set_intr_mask(h, CCISS_INTR_OFF);
+	h->access->set_intr_mask(h, CCISS_INTR_OFF);
 	free_irq(h->intr[h->intr_mode], h);
 }
 
diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index 7fda30e..eb5dfe0 100644
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -101,7 +101,7 @@ struct ctlr_info
 	/* information about each logical volume */
 	drive_info_struct *drv[CISS_MAX_LUN];
 
-	struct access_method access;
+	struct access_method *access;
 
 	/* queue and queue Info */ 
 	struct list_head reqQ;
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 3f08713..56a586a 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -404,7 +404,7 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
 	if (register_blkdev(COMPAQ_SMART2_MAJOR+i, hba[i]->devname)) {
 		goto Enomem4;
 	}
-	hba[i]->access.set_intr_mask(hba[i], 0);
+	hba[i]->access->set_intr_mask(hba[i], 0);
 	if (request_irq(hba[i]->intr, do_ida_intr,
 		IRQF_DISABLED|IRQF_SHARED, hba[i]->devname, hba[i]))
 	{
@@ -459,7 +459,7 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
 	add_timer(&hba[i]->timer);
 
 	/* Enable IRQ now that spinlock and rate limit timer are set up */
-	hba[i]->access.set_intr_mask(hba[i], FIFO_NOT_EMPTY);
+	hba[i]->access->set_intr_mask(hba[i], FIFO_NOT_EMPTY);
 
 	for(j=0; j<NWD; j++) {
 		struct gendisk *disk = ida_gendisk[i][j];
@@ -694,7 +694,7 @@ DBGINFO(
 	for(i=0; i<NR_PRODUCTS; i++) {
 		if (board_id == products[i].board_id) {
 			c->product_name = products[i].product_name;
-			c->access = *(products[i].access);
+			c->access = products[i].access;
 			break;
 		}
 	}
@@ -792,7 +792,7 @@ static int cpqarray_eisa_detect(void)
 		hba[ctlr]->intr = intr;
 		sprintf(hba[ctlr]->devname, "ida%d", nr_ctlr);
 		hba[ctlr]->product_name = products[j].product_name;
-		hba[ctlr]->access = *(products[j].access);
+		hba[ctlr]->access = products[j].access;
 		hba[ctlr]->ctlr = ctlr;
 		hba[ctlr]->board_id = board_id;
 		hba[ctlr]->pci_dev = NULL; /* not PCI */
@@ -980,7 +980,7 @@ static void start_io(ctlr_info_t *h)
 
 	while((c = h->reqQ) != NULL) {
 		/* Can't do anything if we're busy */
-		if (h->access.fifo_full(h) == 0)
+		if (h->access->fifo_full(h) == 0)
 			return;
 
 		/* Get the first entry from the request Q */
@@ -988,7 +988,7 @@ static void start_io(ctlr_info_t *h)
 		h->Qdepth--;
 	
 		/* Tell the controller to do our bidding */
-		h->access.submit_command(h, c);
+		h->access->submit_command(h, c);
 
 		/* Get onto the completion Q */
 		addQ(&h->cmpQ, c);
@@ -1050,7 +1050,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
 	unsigned long flags;
 	__u32 a,a1;
 
-	istat = h->access.intr_pending(h);
+	istat = h->access->intr_pending(h);
 	/* Is this interrupt for us? */
 	if (istat == 0)
 		return IRQ_NONE;
@@ -1061,7 +1061,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
 	 */
 	spin_lock_irqsave(IDA_LOCK(h->ctlr), flags);
 	if (istat & FIFO_NOT_EMPTY) {
-		while((a = h->access.command_completed(h))) {
+		while((a = h->access->command_completed(h))) {
 			a1 = a; a &= ~3;
 			if ((c = h->cmpQ) == NULL)
 			{  
@@ -1449,11 +1449,11 @@ static int sendcmd(
 	/*
 	 * Disable interrupt
 	 */
-	info_p->access.set_intr_mask(info_p, 0);
+	info_p->access->set_intr_mask(info_p, 0);
 	/* Make sure there is room in the command FIFO */
 	/* Actually it should be completely empty at this time. */
 	for (i = 200000; i > 0; i--) {
-		temp = info_p->access.fifo_full(info_p);
+		temp = info_p->access->fifo_full(info_p);
 		if (temp != 0) {
 			break;
 		}
@@ -1466,7 +1466,7 @@ DBG(
 	/*
 	 * Send the cmd
 	 */
-	info_p->access.submit_command(info_p, c);
+	info_p->access->submit_command(info_p, c);
 	complete = pollcomplete(ctlr);
 	
 	pci_unmap_single(info_p->pci_dev, (dma_addr_t) c->req.sg[0].addr, 
@@ -1549,9 +1549,9 @@ static int revalidate_allvol(ctlr_info_t *host)
 	 * we check the new geometry.  Then turn interrupts back on when
 	 * we're done.
 	 */
-	host->access.set_intr_mask(host, 0);
+	host->access->set_intr_mask(host, 0);
 	getgeometry(ctlr);
-	host->access.set_intr_mask(host, FIFO_NOT_EMPTY);
+	host->access->set_intr_mask(host, FIFO_NOT_EMPTY);
 
 	for(i=0; i<NWD; i++) {
 		struct gendisk *disk = ida_gendisk[ctlr][i];
@@ -1591,7 +1591,7 @@ static int pollcomplete(int ctlr)
 	/* Wait (up to 2 seconds) for a command to complete */
 
 	for (i = 200000; i > 0; i--) {
-		done = hba[ctlr]->access.command_completed(hba[ctlr]);
+		done = hba[ctlr]->access->command_completed(hba[ctlr]);
 		if (done == 0) {
 			udelay(10);	/* a short fixed delay */
 		} else
diff --git a/drivers/block/cpqarray.h b/drivers/block/cpqarray.h
index be73e9d..7fbf140 100644
--- a/drivers/block/cpqarray.h
+++ b/drivers/block/cpqarray.h
@@ -99,7 +99,7 @@ struct ctlr_info {
 	drv_info_t	drv[NWD];
 	struct proc_dir_entry *proc;
 
-	struct access_method access;
+	struct access_method *access;
 
 	cmdlist_t *reqQ;
 	cmdlist_t *cmpQ;
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 6b51afa..17e1191 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -582,7 +582,7 @@ struct drbd_epoch {
 	struct drbd_tconn *tconn;
 	struct list_head list;
 	unsigned int barrier_nr;
-	atomic_t epoch_size; /* increased on every request added. */
+	atomic_unchecked_t epoch_size; /* increased on every request added. */
 	atomic_t active;     /* increased on every req. added, and dec on every finished. */
 	unsigned long flags;
 };
@@ -1011,7 +1011,7 @@ struct drbd_conf {
 	int al_tr_cycle;
 	int al_tr_pos;   /* position of the next transaction in the journal */
 	wait_queue_head_t seq_wait;
-	atomic_t packet_seq;
+	atomic_unchecked_t packet_seq;
 	unsigned int peer_seq;
 	spinlock_t peer_seq_lock;
 	unsigned int minor;
@@ -1527,7 +1527,7 @@ static inline int drbd_setsockopt(struct socket *sock, int level, int optname,
 	char __user *uoptval;
 	int err;
 
-	uoptval = (char __user __force *)optval;
+	uoptval = (char __force_user *)optval;
 
 	set_fs(KERNEL_DS);
 	if (level == SOL_SOCKET)
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 54d03d4..332f311 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1317,7 +1317,7 @@ static int _drbd_send_ack(struct drbd_conf *mdev, enum drbd_packet cmd,
 	p->sector = sector;
 	p->block_id = block_id;
 	p->blksize = blksize;
-	p->seq_num = cpu_to_be32(atomic_inc_return(&mdev->packet_seq));
+	p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&mdev->packet_seq));
 	return drbd_send_command(mdev, sock, cmd, sizeof(*p), NULL, 0);
 }
 
@@ -1619,7 +1619,7 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
 		return -EIO;
 	p->sector = cpu_to_be64(req->i.sector);
 	p->block_id = (unsigned long)req;
-	p->seq_num = cpu_to_be32(atomic_inc_return(&mdev->packet_seq));
+	p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&mdev->packet_seq));
 	dp_flags = bio_flags_to_wire(mdev, req->master_bio->bi_rw);
 	if (mdev->state.conn >= C_SYNC_SOURCE &&
 	    mdev->state.conn <= C_PAUSED_SYNC_T)
@@ -2574,8 +2574,8 @@ void conn_destroy(struct kref *kref)
 {
 	struct drbd_tconn *tconn = container_of(kref, struct drbd_tconn, kref);
 
-	if (atomic_read(&tconn->current_epoch->epoch_size) !=  0)
-		conn_err(tconn, "epoch_size:%d\n", atomic_read(&tconn->current_epoch->epoch_size));
+	if (atomic_read_unchecked(&tconn->current_epoch->epoch_size) !=  0)
+		conn_err(tconn, "epoch_size:%d\n", atomic_read_unchecked(&tconn->current_epoch->epoch_size));
 	kfree(tconn->current_epoch);
 
 	idr_destroy(&tconn->volumes);
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 2f5fffd..b22a1ae 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -833,7 +833,7 @@ int drbd_connected(struct drbd_conf *mdev)
 {
 	int err;
 
-	atomic_set(&mdev->packet_seq, 0);
+	atomic_set_unchecked(&mdev->packet_seq, 0);
 	mdev->peer_seq = 0;
 
 	mdev->state_mutex = mdev->tconn->agreed_pro_version < 100 ?
@@ -1191,7 +1191,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_tconn *tconn,
 	do {
 		next_epoch = NULL;
 
-		epoch_size = atomic_read(&epoch->epoch_size);
+		epoch_size = atomic_read_unchecked(&epoch->epoch_size);
 
 		switch (ev & ~EV_CLEANUP) {
 		case EV_PUT:
@@ -1231,7 +1231,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_tconn *tconn,
 					rv = FE_DESTROYED;
 			} else {
 				epoch->flags = 0;
-				atomic_set(&epoch->epoch_size, 0);
+				atomic_set_unchecked(&epoch->epoch_size, 0);
 				/* atomic_set(&epoch->active, 0); is already zero */
 				if (rv == FE_STILL_LIVE)
 					rv = FE_RECYCLED;
@@ -1449,7 +1449,7 @@ static int receive_Barrier(struct drbd_tconn *tconn, struct packet_info *pi)
 		conn_wait_active_ee_empty(tconn);
 		drbd_flush(tconn);
 
-		if (atomic_read(&tconn->current_epoch->epoch_size)) {
+		if (atomic_read_unchecked(&tconn->current_epoch->epoch_size)) {
 			epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);
 			if (epoch)
 				break;
@@ -1462,11 +1462,11 @@ static int receive_Barrier(struct drbd_tconn *tconn, struct packet_info *pi)
 	}
 
 	epoch->flags = 0;
-	atomic_set(&epoch->epoch_size, 0);
+	atomic_set_unchecked(&epoch->epoch_size, 0);
 	atomic_set(&epoch->active, 0);
 
 	spin_lock(&tconn->epoch_lock);
-	if (atomic_read(&tconn->current_epoch->epoch_size)) {
+	if (atomic_read_unchecked(&tconn->current_epoch->epoch_size)) {
 		list_add(&epoch->list, &tconn->current_epoch->list);
 		tconn->current_epoch = epoch;
 		tconn->epochs++;
@@ -2170,7 +2170,7 @@ static int receive_Data(struct drbd_tconn *tconn, struct packet_info *pi)
 
 		err = wait_for_and_update_peer_seq(mdev, peer_seq);
 		drbd_send_ack_dp(mdev, P_NEG_ACK, p, pi->size);
-		atomic_inc(&tconn->current_epoch->epoch_size);
+		atomic_inc_unchecked(&tconn->current_epoch->epoch_size);
 		err2 = drbd_drain_block(mdev, pi->size);
 		if (!err)
 			err = err2;
@@ -2204,7 +2204,7 @@ static int receive_Data(struct drbd_tconn *tconn, struct packet_info *pi)
 
 	spin_lock(&tconn->epoch_lock);
 	peer_req->epoch = tconn->current_epoch;
-	atomic_inc(&peer_req->epoch->epoch_size);
+	atomic_inc_unchecked(&peer_req->epoch->epoch_size);
 	atomic_inc(&peer_req->epoch->active);
 	spin_unlock(&tconn->epoch_lock);
 
@@ -4345,7 +4345,7 @@ struct data_cmd {
 	int expect_payload;
 	size_t pkt_size;
 	int (*fn)(struct drbd_tconn *, struct packet_info *);
-};
+} __do_const;
 
 static struct data_cmd drbd_cmd_handler[] = {
 	[P_DATA]	    = { 1, sizeof(struct p_data), receive_Data },
@@ -4465,7 +4465,7 @@ static void conn_disconnect(struct drbd_tconn *tconn)
 	if (!list_empty(&tconn->current_epoch->list))
 		conn_err(tconn, "ASSERTION FAILED: tconn->current_epoch->list not empty\n");
 	/* ok, no more ee's on the fly, it is safe to reset the epoch_size */
-	atomic_set(&tconn->current_epoch->epoch_size, 0);
+	atomic_set_unchecked(&tconn->current_epoch->epoch_size, 0);
 	tconn->send.seen_any_write_yet = false;
 
 	conn_info(tconn, "Connection closed\n");
@@ -5221,7 +5221,7 @@ static int tconn_finish_peer_reqs(struct drbd_tconn *tconn)
 struct asender_cmd {
 	size_t pkt_size;
 	int (*fn)(struct drbd_tconn *tconn, struct packet_info *);
-};
+} __do_const;
 
 static struct asender_cmd asender_tbl[] = {
 	[P_PING]	    = { 0, got_Ping },
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index dfe7583..83768bb 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -231,7 +231,7 @@ static int __do_lo_send_write(struct file *file,
 	mm_segment_t old_fs = get_fs();
 
 	set_fs(get_ds());
-	bw = file->f_op->write(file, buf, len, &pos);
+	bw = file->f_op->write(file, (const char __force_user *)buf, len, &pos);
 	set_fs(old_fs);
 	if (likely(bw == len))
 		return 0;
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 2e7de7a..ed86dc0 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -83,7 +83,7 @@
 
 #define MAX_SPEED 0xffff
 
-#define ZONE(sector, pd) (((sector) + (pd)->offset) & ~((pd)->settings.size - 1))
+#define ZONE(sector, pd) (((sector) + (pd)->offset) & ~((pd)->settings.size - 1UL))
 
 static DEFINE_MUTEX(pktcdvd_mutex);
 static struct pktcdvd_device *pkt_devs[MAX_WRITERS];
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index d620b44..587561e 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -416,7 +416,6 @@ int register_cdrom(struct cdrom_device_info *cdi)
 	ENSURE(reset, CDC_RESET);
 	ENSURE(generic_packet, CDC_GENERIC_PACKET);
 	cdi->mc_flags = 0;
-	cdo->n_minors = 0;
         cdi->options = CDO_USE_FFLAGS;
 	
 	if (autoclose==1 && CDROM_CAN(CDC_CLOSE_TRAY))
@@ -436,8 +435,11 @@ int register_cdrom(struct cdrom_device_info *cdi)
 	else
 		cdi->cdda_method = CDDA_OLD;
 
-	if (!cdo->generic_packet)
-		cdo->generic_packet = cdrom_dummy_generic_packet;
+	if (!cdo->generic_packet) {
+		pax_open_kernel();
+		*(void **)&cdo->generic_packet = cdrom_dummy_generic_packet;
+		pax_close_kernel();
+	}
 
 	cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name);
 	mutex_lock(&cdrom_mutex);
@@ -458,7 +460,6 @@ void unregister_cdrom(struct cdrom_device_info *cdi)
 	if (cdi->exit)
 		cdi->exit(cdi);
 
-	cdi->ops->n_minors--;
 	cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name);
 }
 
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index d59cdcb..11afddf 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -491,7 +491,6 @@ static struct cdrom_device_ops gdrom_ops = {
 	.audio_ioctl		= gdrom_audio_ioctl,
 	.capability		= CDC_MULTI_SESSION | CDC_MEDIA_CHANGED |
 				  CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R,
-	.n_minors		= 1,
 };
 
 static int gdrom_bdops_open(struct block_device *bdev, fmode_t mode)
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 3bb6fa3..34013fb 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -8,7 +8,8 @@ source "drivers/tty/Kconfig"
 
 config DEVKMEM
 	bool "/dev/kmem virtual device support"
-	default y
+	default n
+	depends on !GRKERNSEC_KMEM
 	help
 	  Say Y here if you want to support the /dev/kmem device. The
 	  /dev/kmem device is rarely used, but can be used for certain
@@ -582,6 +583,7 @@ config DEVPORT
 	bool
 	depends on !M68K
 	depends on ISA || PCI
+	depends on !GRKERNSEC_KMEM
 	default y
 
 source "drivers/s390/char/Kconfig"
diff --git a/drivers/char/agp/compat_ioctl.c b/drivers/char/agp/compat_ioctl.c
index a48e05b..6bac831 100644
--- a/drivers/char/agp/compat_ioctl.c
+++ b/drivers/char/agp/compat_ioctl.c
@@ -108,7 +108,7 @@ static int compat_agpioc_reserve_wrap(struct agp_file_private *priv, void __user
 			return -ENOMEM;
 		}
 
-		if (copy_from_user(usegment, (void __user *) ureserve.seg_list,
+		if (copy_from_user(usegment, (void __force_user *) ureserve.seg_list,
 				   sizeof(*usegment) * ureserve.seg_count)) {
 			kfree(usegment);
 			kfree(ksegment);
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index 2e04433..771f2cc 100644
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -817,7 +817,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
 	if (copy_from_user(&reserve, arg, sizeof(struct agp_region)))
 		return -EFAULT;
 
-	if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment))
+	if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv))
 		return -EFAULT;
 
 	client = agp_find_client_by_pid(reserve.pid);
@@ -847,7 +847,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
 		if (segment == NULL)
 			return -ENOMEM;
 
-		if (copy_from_user(segment, (void __user *) reserve.seg_list,
+		if (copy_from_user(segment, (void __force_user *) reserve.seg_list,
 				   sizeof(struct agp_segment) * reserve.seg_count)) {
 			kfree(segment);
 			return -EFAULT;
diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
index 21cb980..f15107c 100644
--- a/drivers/char/genrtc.c
+++ b/drivers/char/genrtc.c
@@ -272,6 +272,7 @@ static int gen_rtc_ioctl(struct file *file,
 	switch (cmd) {
 
 	case RTC_PLL_GET:
+	    memset(&pll, 0, sizeof(pll));
 	    if (get_rtc_pll(&pll))
 	 	    return -EINVAL;
 	    else
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index d784650..e8bfd69 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -559,7 +559,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets,
 }
 
 static int
-hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
+hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
 		  struct hpet_info *info)
 {
 	struct hpet_timer __iomem *timer;
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 053201b0..8335cce 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -420,7 +420,7 @@ struct ipmi_smi {
 	struct proc_dir_entry *proc_dir;
 	char                  proc_dir_name[10];
 
-	atomic_t stats[IPMI_NUM_STATS];
+	atomic_unchecked_t stats[IPMI_NUM_STATS];
 
 	/*
 	 * run_to_completion duplicate of smb_info, smi_info
@@ -453,9 +453,9 @@ static DEFINE_MUTEX(smi_watchers_mutex);
 
 
 #define ipmi_inc_stat(intf, stat) \
-	atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat])
+	atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat])
 #define ipmi_get_stat(intf, stat) \
-	((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat]))
+	((unsigned int) atomic_read_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]))
 
 static int is_lan_addr(struct ipmi_addr *addr)
 {
@@ -2884,7 +2884,7 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
 	INIT_LIST_HEAD(&intf->cmd_rcvrs);
 	init_waitqueue_head(&intf->waitq);
 	for (i = 0; i < IPMI_NUM_STATS; i++)
-		atomic_set(&intf->stats[i], 0);
+		atomic_set_unchecked(&intf->stats[i], 0);
 
 	intf->proc_dir = NULL;
 
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 0ac9b45..6179fb5 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -275,7 +275,7 @@ struct smi_info {
 	unsigned char slave_addr;
 
 	/* Counters and things for the proc filesystem. */
-	atomic_t stats[SI_NUM_STATS];
+	atomic_unchecked_t stats[SI_NUM_STATS];
 
 	struct task_struct *thread;
 
@@ -284,9 +284,9 @@ struct smi_info {
 };
 
 #define smi_inc_stat(smi, stat) \
-	atomic_inc(&(smi)->stats[SI_STAT_ ## stat])
+	atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat])
 #define smi_get_stat(smi, stat) \
-	((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat]))
+	((unsigned int) atomic_read_unchecked(&(smi)->stats[SI_STAT_ ## stat]))
 
 #define SI_MAX_PARMS 4
 
@@ -3254,7 +3254,7 @@ static int try_smi_init(struct smi_info *new_smi)
 	atomic_set(&new_smi->req_events, 0);
 	new_smi->run_to_completion = 0;
 	for (i = 0; i < SI_NUM_STATS; i++)
-		atomic_set(&new_smi->stats[i], 0);
+		atomic_set_unchecked(&new_smi->stats[i], 0);
 
 	new_smi->interrupt_disabled = 1;
 	atomic_set(&new_smi->stop_operation, 0);
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 2c644af..d4d7f17 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -18,6 +18,7 @@
 #include <linux/raw.h>
 #include <linux/tty.h>
 #include <linux/capability.h>
+#include <linux/security.h>
 #include <linux/ptrace.h>
 #include <linux/device.h>
 #include <linux/highmem.h>
@@ -37,6 +38,10 @@
 
 #define DEVPORT_MINOR	4
 
+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
+extern const struct file_operations grsec_fops;
+#endif
+
 static inline unsigned long size_inside_page(unsigned long start,
 					     unsigned long size)
 {
@@ -68,9 +73,13 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 
 	while (cursor < to) {
 		if (!devmem_is_allowed(pfn)) {
+#ifdef CONFIG_GRKERNSEC_KMEM
+			gr_handle_mem_readwrite(from, to);
+#else
 			printk(KERN_INFO
 		"Program %s tried to access /dev/mem between %Lx->%Lx.\n",
 				current->comm, from, to);
+#endif
 			return 0;
 		}
 		cursor += PAGE_SIZE;
@@ -78,6 +87,11 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 	}
 	return 1;
 }
+#elif defined(CONFIG_GRKERNSEC_KMEM)
+static inline int range_is_allowed(unsigned long pfn, unsigned long size)
+{
+	return 0;
+}
 #else
 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 {
@@ -120,6 +134,7 @@ static ssize_t read_mem(struct file *file, char __user *buf,
 
 	while (count > 0) {
 		unsigned long remaining;
+		char *temp;
 
 		sz = size_inside_page(p, count);
 
@@ -135,7 +150,23 @@ static ssize_t read_mem(struct file *file, char __user *buf,
 		if (!ptr)
 			return -EFAULT;
 
-		remaining = copy_to_user(buf, ptr, sz);
+#ifdef CONFIG_PAX_USERCOPY
+		temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
+		if (!temp) {
+			unxlate_dev_mem_ptr(p, ptr);
+			return -ENOMEM;
+		}
+		memcpy(temp, ptr, sz);
+#else
+		temp = ptr;
+#endif
+
+		remaining = copy_to_user(buf, temp, sz);
+
+#ifdef CONFIG_PAX_USERCOPY
+		kfree(temp);
+#endif
+
 		unxlate_dev_mem_ptr(p, ptr);
 		if (remaining)
 			return -EFAULT;
@@ -378,7 +409,7 @@ static ssize_t read_oldmem(struct file *file, char __user *buf,
 		else
 			csize = count;
 
-		rc = copy_oldmem_page(pfn, buf, csize, offset, 1);
+		rc = copy_oldmem_page(pfn, (char __force_kernel *)buf, csize, offset, 1);
 		if (rc < 0)
 			return rc;
 		buf += csize;
@@ -398,9 +429,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
 			 size_t count, loff_t *ppos)
 {
 	unsigned long p = *ppos;
-	ssize_t low_count, read, sz;
+	ssize_t low_count, read, sz, err = 0;
 	char *kbuf; /* k-addr because vread() takes vmlist_lock rwlock */
-	int err = 0;
 
 	read = 0;
 	if (p < (unsigned long) high_memory) {
@@ -422,6 +452,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
 		}
 #endif
 		while (low_count > 0) {
+			char *temp;
+
 			sz = size_inside_page(p, low_count);
 
 			/*
@@ -431,7 +463,22 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
 			 */
 			kbuf = xlate_dev_kmem_ptr((char *)p);
 
-			if (copy_to_user(buf, kbuf, sz))
+#ifdef CONFIG_PAX_USERCOPY
+			temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
+			if (!temp)
+				return -ENOMEM;
+			memcpy(temp, kbuf, sz);
+#else
+			temp = kbuf;
+#endif
+
+			err = copy_to_user(buf, temp, sz);
+
+#ifdef CONFIG_PAX_USERCOPY
+			kfree(temp);
+#endif
+
+			if (err)
 				return -EFAULT;
 			buf += sz;
 			p += sz;
@@ -833,6 +880,9 @@ static const struct memdev {
 #ifdef CONFIG_CRASH_DUMP
 	[12] = { "oldmem", 0, &oldmem_fops, NULL },
 #endif
+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
+	[13] = { "grsec",S_IRUSR | S_IWUGO, &grsec_fops, NULL },
+#endif
 };
 
 static int memory_open(struct inode *inode, struct file *filp)
diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 9df78e2..01ba9ae 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -247,7 +247,7 @@ static ssize_t nvram_read(struct file *file, char __user *buf,
 
 	spin_unlock_irq(&rtc_lock);
 
-	if (copy_to_user(buf, contents, tmp - contents))
+	if (tmp - contents > sizeof(contents) || copy_to_user(buf, contents, tmp - contents))
 		return -EFAULT;
 
 	*ppos = i;
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 5c5cc00..ac9edb7 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -2345,9 +2345,9 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgslpc_close(%s) entry, count=%d\n",
-			 __FILE__, __LINE__, info->device_name, port->count);
+			 __FILE__, __LINE__, info->device_name, atomic_read(&port->count));
 
-	WARN_ON(!port->count);
+	WARN_ON(!atomic_read(&port->count));
 
 	if (tty_port_close_start(port, tty, filp) == 0)
 		goto cleanup;
@@ -2365,7 +2365,7 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
 cleanup:
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgslpc_close(%s) exit, count=%d\n", __FILE__, __LINE__,
-			tty->driver->name, port->count);
+			tty->driver->name, atomic_read(&port->count));
 }
 
 /* Wait until the transmitter is empty.
@@ -2507,7 +2507,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgslpc_open(%s), old ref count = %d\n",
-			 __FILE__, __LINE__, tty->driver->name, port->count);
+			 __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
 
 	/* If port is closing, signal caller to try again */
 	if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING){
@@ -2527,11 +2527,11 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
 		goto cleanup;
 	}
 	spin_lock(&port->lock);
-	port->count++;
+	atomic_inc(&port->count);
 	spin_unlock(&port->lock);
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (port->count == 1) {
+	if (atomic_read(&port->count) == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info, tty);
 		if (retval < 0)
@@ -3920,7 +3920,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	switch (encoding)
@@ -4024,7 +4024,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
+	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -4114,7 +4114,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		printk("%s:hdlcdev_ioctl(%s)\n", __FILE__, dev->name);
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 32a6c57..98038d5 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -272,8 +272,13 @@
 /*
  * Configuration information
  */
+#ifdef CONFIG_GRKERNSEC_RANDNET
+#define INPUT_POOL_WORDS 512
+#define OUTPUT_POOL_WORDS 128
+#else
 #define INPUT_POOL_WORDS 128
 #define OUTPUT_POOL_WORDS 32
+#endif
 #define SEC_XFER_SIZE 512
 #define EXTRACT_SIZE 10
 
@@ -313,10 +318,17 @@ static struct poolinfo {
 	int poolwords;
 	int tap1, tap2, tap3, tap4, tap5;
 } poolinfo_table[] = {
+#ifdef CONFIG_GRKERNSEC_RANDNET
+	/* x^512 + x^411 + x^308 + x^208 +x^104 + x + 1 -- 225 */
+	{ 512,	411,	308,	208,	104,	1 },
+	/* x^128 + x^103 + x^76 + x^51 + x^25 + x + 1 -- 105 */
+	{ 128,	103,	76,	51,	25,	1 },
+#else
 	/* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */
 	{ 128,	103,	76,	51,	25,	1 },
 	/* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */
 	{ 32,	26,	20,	14,	7,	1 },
+#endif
 #if 0
 	/* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1  -- 115 */
 	{ 2048,	1638,	1231,	819,	411,	1 },
@@ -524,8 +536,8 @@ static void _mix_pool_bytes(struct entropy_store *r, const void *in,
 		input_rotate += i ? 7 : 14;
 	}
 
-	ACCESS_ONCE(r->input_rotate) = input_rotate;
-	ACCESS_ONCE(r->add_ptr) = i;
+	ACCESS_ONCE_RW(r->input_rotate) = input_rotate;
+	ACCESS_ONCE_RW(r->add_ptr) = i;
 	smp_wmb();
 
 	if (out)
@@ -865,16 +877,24 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
 	if (r->entropy_count / 8 < min + reserved) {
 		nbytes = 0;
 	} else {
+		int entropy_count, orig;
+retry:
+		entropy_count = orig = ACCESS_ONCE(r->entropy_count);
 		/* If limited, never pull more than available */
-		if (r->limit && nbytes + reserved >= r->entropy_count / 8)
-			nbytes = r->entropy_count/8 - reserved;
+		if (r->limit && nbytes + reserved >= entropy_count / 8)
+			nbytes = entropy_count/8 - reserved;
 
-		if (r->entropy_count / 8 >= nbytes + reserved)
-			r->entropy_count -= nbytes*8;
-		else
-			r->entropy_count = reserved;
+		if (entropy_count / 8 >= nbytes + reserved) {
+			entropy_count -= nbytes*8;
+			if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
+				goto retry;
+		} else {
+			entropy_count = reserved;
+			if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
+				goto retry;
+		}
 
-		if (r->entropy_count < random_write_wakeup_thresh)
+		if (entropy_count < random_write_wakeup_thresh)
 			wakeup_write = 1;
 	}
 
@@ -957,10 +977,23 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
 {
 	ssize_t ret = 0, i;
 	__u8 tmp[EXTRACT_SIZE];
+	unsigned long flags;
 
 	/* if last_data isn't primed, we need EXTRACT_SIZE extra bytes */
-	if (fips_enabled && !r->last_data_init)
-		nbytes += EXTRACT_SIZE;
+	if (fips_enabled) {
+		spin_lock_irqsave(&r->lock, flags);
+		if (!r->last_data_init) {
+			r->last_data_init = true;
+			spin_unlock_irqrestore(&r->lock, flags);
+			trace_extract_entropy(r->name, EXTRACT_SIZE,
+					      r->entropy_count, _RET_IP_);
+			xfer_secondary_pool(r, EXTRACT_SIZE);
+			extract_buf(r, tmp);
+			spin_lock_irqsave(&r->lock, flags);
+			memcpy(r->last_data, tmp, EXTRACT_SIZE);
+		}
+		spin_unlock_irqrestore(&r->lock, flags);
+	}
 
 	trace_extract_entropy(r->name, nbytes, r->entropy_count, _RET_IP_);
 	xfer_secondary_pool(r, nbytes);
@@ -970,19 +1003,6 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
 		extract_buf(r, tmp);
 
 		if (fips_enabled) {
-			unsigned long flags;
-
-
-			/* prime last_data value if need be, per fips 140-2 */
-			if (!r->last_data_init) {
-				spin_lock_irqsave(&r->lock, flags);
-				memcpy(r->last_data, tmp, EXTRACT_SIZE);
-				r->last_data_init = true;
-				nbytes -= EXTRACT_SIZE;
-				spin_unlock_irqrestore(&r->lock, flags);
-				extract_buf(r, tmp);
-			}
-
 			spin_lock_irqsave(&r->lock, flags);
 			if (!memcmp(tmp, r->last_data, EXTRACT_SIZE))
 				panic("Hardware RNG duplicated output!\n");
@@ -1024,7 +1044,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
 
 		extract_buf(r, tmp);
 		i = min_t(int, nbytes, EXTRACT_SIZE);
-		if (copy_to_user(buf, tmp, i)) {
+		if (i > sizeof(tmp) || copy_to_user(buf, tmp, i)) {
 			ret = -EFAULT;
 			break;
 		}
@@ -1360,7 +1380,7 @@ EXPORT_SYMBOL(generate_random_uuid);
 #include <linux/sysctl.h>
 
 static int min_read_thresh = 8, min_write_thresh;
-static int max_read_thresh = INPUT_POOL_WORDS * 32;
+static int max_read_thresh = OUTPUT_POOL_WORDS * 32;
 static int max_write_thresh = INPUT_POOL_WORDS * 32;
 static char sysctl_bootid[16];
 
@@ -1376,7 +1396,7 @@ static char sysctl_bootid[16];
 static int proc_do_uuid(ctl_table *table, int write,
 			void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	ctl_table fake_table;
+	ctl_table_no_const fake_table;
 	unsigned char buf[64], tmp_uuid[16], *uuid;
 
 	uuid = table->data;
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index bf2349db..5456d53 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -54,6 +54,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
+#include <asm/local.h>
 
 #include <linux/sonypi.h>
 
@@ -490,7 +491,7 @@ static struct sonypi_device {
 	spinlock_t fifo_lock;
 	wait_queue_head_t fifo_proc_list;
 	struct fasync_struct *fifo_async;
-	int open_count;
+	local_t open_count;
 	int model;
 	struct input_dev *input_jog_dev;
 	struct input_dev *input_key_dev;
@@ -897,7 +898,7 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on)
 static int sonypi_misc_release(struct inode *inode, struct file *file)
 {
 	mutex_lock(&sonypi_device.lock);
-	sonypi_device.open_count--;
+	local_dec(&sonypi_device.open_count);
 	mutex_unlock(&sonypi_device.lock);
 	return 0;
 }
@@ -906,9 +907,9 @@ static int sonypi_misc_open(struct inode *inode, struct file *file)
 {
 	mutex_lock(&sonypi_device.lock);
 	/* Flush input queue on first open */
-	if (!sonypi_device.open_count)
+	if (!local_read(&sonypi_device.open_count))
 		kfifo_reset(&sonypi_device.fifo);
-	sonypi_device.open_count++;
+	local_inc(&sonypi_device.open_count);
 	mutex_unlock(&sonypi_device.lock);
 
 	return 0;
diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c
index 64420b3..5c40b56 100644
--- a/drivers/char/tpm/tpm_acpi.c
+++ b/drivers/char/tpm/tpm_acpi.c
@@ -98,11 +98,12 @@ int read_log(struct tpm_bios_log *log)
 	virt = acpi_os_map_memory(start, len);
 	if (!virt) {
 		kfree(log->bios_event_log);
+		log->bios_event_log = NULL;
 		printk("%s: ERROR - Unable to map memory\n", __func__);
 		return -EIO;
 	}
 
-	memcpy_fromio(log->bios_event_log, virt, len);
+	memcpy_fromio(log->bios_event_log, (const char __force_kernel *)virt, len);
 
 	acpi_os_unmap_memory(virt, len);
 	return 0;
diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c
index 84ddc55..1d32f1e 100644
--- a/drivers/char/tpm/tpm_eventlog.c
+++ b/drivers/char/tpm/tpm_eventlog.c
@@ -95,7 +95,7 @@ static void *tpm_bios_measurements_start(struct seq_file *m, loff_t *pos)
 	event = addr;
 
 	if ((event->event_type == 0 && event->event_size == 0) ||
-	    ((addr + sizeof(struct tcpa_event) + event->event_size) >= limit))
+	    (event->event_size >= limit - addr - sizeof(struct tcpa_event)))
 		return NULL;
 
 	return addr;
@@ -120,7 +120,7 @@ static void *tpm_bios_measurements_next(struct seq_file *m, void *v,
 		return NULL;
 
 	if ((event->event_type == 0 && event->event_size == 0) ||
-	    ((v + sizeof(struct tcpa_event) + event->event_size) >= limit))
+	    (event->event_size >= limit - v - sizeof(struct tcpa_event)))
 		return NULL;
 
 	(*pos)++;
@@ -213,7 +213,8 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v)
 	int i;
 
 	for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++)
-		seq_putc(m, data[i]);
+		if (!seq_putc(m, data[i]))
+			return -EFAULT;
 
 	return 0;
 }
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index ce5f3fc..e2d3e55 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -679,7 +679,7 @@ static ssize_t fill_readbuf(struct port *port, char *out_buf, size_t out_count,
 	if (to_user) {
 		ssize_t ret;
 
-		ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count);
+		ret = copy_to_user((char __force_user *)out_buf, buf->buf + buf->offset, out_count);
 		if (ret)
 			return -EFAULT;
 	} else {
@@ -778,7 +778,7 @@ static ssize_t port_fops_read(struct file *filp, char __user *ubuf,
 	if (!port_has_data(port) && !port->host_connected)
 		return 0;
 
-	return fill_readbuf(port, ubuf, count, true);
+	return fill_readbuf(port, (char __force_kernel *)ubuf, count, true);
 }
 
 static int wait_port_writable(struct port *port, bool nonblock)
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index d7ad425..3e3f81f 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -262,7 +262,7 @@ static int __cpuinit arch_timer_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block arch_timer_cpu_nb __cpuinitdata = {
+static struct notifier_block arch_timer_cpu_nb = {
 	.notifier_call = arch_timer_cpu_notify,
 };
 
diff --git a/drivers/clocksource/metag_generic.c b/drivers/clocksource/metag_generic.c
index ade7513..069445f 100644
--- a/drivers/clocksource/metag_generic.c
+++ b/drivers/clocksource/metag_generic.c
@@ -169,7 +169,7 @@ static int __cpuinit arch_timer_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata arch_timer_cpu_nb = {
+static struct notifier_block arch_timer_cpu_nb = {
 	.notifier_call = arch_timer_cpu_notify,
 };
 
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 57a8774..545e993 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -172,7 +172,7 @@ static ssize_t show_global_boost(struct kobject *kobj,
 	return sprintf(buf, "%u\n", boost_enabled);
 }
 
-static struct global_attr global_boost = __ATTR(boost, 0644,
+static global_attr_no_const global_boost = __ATTR(boost, 0644,
 						show_global_boost,
 						store_global_boost);
 
@@ -712,8 +712,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	data->acpi_data = per_cpu_ptr(acpi_perf_data, cpu);
 	per_cpu(acfreq_data, cpu) = data;
 
-	if (cpu_has(c, X86_FEATURE_CONSTANT_TSC))
-		acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
+	if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
+		pax_open_kernel();
+		*(u8 *)&acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
+		pax_close_kernel();
+	}
 
 	result = acpi_processor_register_performance(data->acpi_data, cpu);
 	if (result)
@@ -839,7 +842,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
 		break;
 	case ACPI_ADR_SPACE_FIXED_HARDWARE:
-		acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
+		pax_open_kernel();
+		*(void **)&acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
+		pax_close_kernel();
 		policy->cur = get_cur_freq_on_cpu(cpu);
 		break;
 	default:
@@ -850,8 +855,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	acpi_processor_notify_smm(THIS_MODULE);
 
 	/* Check for APERF/MPERF support in hardware */
-	if (boot_cpu_has(X86_FEATURE_APERFMPERF))
-		acpi_cpufreq_driver.getavg = cpufreq_get_measured_perf;
+	if (boot_cpu_has(X86_FEATURE_APERFMPERF)) {
+		pax_open_kernel();
+		*(void **)&acpi_cpufreq_driver.getavg = cpufreq_get_measured_perf;
+		pax_close_kernel();
+	}
 
 	pr_debug("CPU%u - ACPI performance management activated.\n", cpu);
 	for (i = 0; i < perf->state_count; i++)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index b02824d..51e44aa 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1813,7 +1813,7 @@ static int __cpuinit cpufreq_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata cpufreq_cpu_notifier = {
+static struct notifier_block cpufreq_cpu_notifier = {
     .notifier_call = cpufreq_cpu_callback,
 };
 
@@ -1845,8 +1845,11 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
 
 	pr_debug("trying to register driver %s\n", driver_data->name);
 
-	if (driver_data->setpolicy)
-		driver_data->flags |= CPUFREQ_CONST_LOOPS;
+	if (driver_data->setpolicy) {
+		pax_open_kernel();
+		*(u8 *)&driver_data->flags |= CPUFREQ_CONST_LOOPS;
+		pax_close_kernel();
+	}
 
 	spin_lock_irqsave(&cpufreq_driver_lock, flags);
 	if (cpufreq_driver) {
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 5a76086..0f4d394 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -201,8 +201,8 @@ int cpufreq_governor_dbs(struct dbs_data *dbs_data,
 {
 	struct od_cpu_dbs_info_s *od_dbs_info = NULL;
 	struct cs_cpu_dbs_info_s *cs_dbs_info = NULL;
-	struct cs_ops *cs_ops = NULL;
-	struct od_ops *od_ops = NULL;
+	const struct cs_ops *cs_ops = NULL;
+	const struct od_ops *od_ops = NULL;
 	struct od_dbs_tuners *od_tuners = dbs_data->tuners;
 	struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
 	struct cpu_dbs_common_info *cpu_cdbs;
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index cc4bd2f..ad142bc 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -142,7 +142,7 @@ struct dbs_data {
 	void (*gov_check_cpu)(int cpu, unsigned int load);
 
 	/* Governor specific ops, see below */
-	void *gov_ops;
+	const void *gov_ops;
 };
 
 /* Governor specific ops, will be passed to dbs_data->gov_ops */
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index bfd6273..e39dd63 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -365,7 +365,7 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb,
 }
 
 /* priority=1 so this will get called before cpufreq_remove_dev */
-static struct notifier_block cpufreq_stat_cpu_notifier __refdata = {
+static struct notifier_block cpufreq_stat_cpu_notifier = {
 	.notifier_call = cpufreq_stat_cpu_callback,
 	.priority = 1,
 };
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 827629c9..0bc6a03 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -167,10 +167,14 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
 		case 0x0F: /* Core Duo */
 		case 0x16: /* Celeron Core */
 		case 0x1C: /* Atom */
-			p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+			pax_open_kernel();
+			*(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+			pax_close_kernel();
 			return speedstep_get_frequency(SPEEDSTEP_CPU_PCORE);
 		case 0x0D: /* Pentium M (Dothan) */
-			p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+			pax_open_kernel();
+			*(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+			pax_close_kernel();
 			/* fall through */
 		case 0x09: /* Pentium M (Banias) */
 			return speedstep_get_frequency(SPEEDSTEP_CPU_PM);
@@ -182,7 +186,9 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
 
 	/* on P-4s, the TSC runs with constant frequency independent whether
 	 * throttling is active or not. */
-	p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+	pax_open_kernel();
+	*(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+	pax_close_kernel();
 
 	if (speedstep_detect_processor() == SPEEDSTEP_CPU_P4M) {
 		printk(KERN_WARNING PFX "Warning: Pentium 4-M detected. "
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 3a953d5..f5993f6 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -353,8 +353,11 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
 	    !cpu_has(cpu, X86_FEATURE_EST))
 		return -ENODEV;
 
-	if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC))
-		centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
+	if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC)) {
+		pax_open_kernel();
+		*(u8 *)&centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
+		pax_close_kernel();
+	}
 
 	if (policy->cpu != 0)
 		return -ENODEV;
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index eba6929..0f53baf 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -277,7 +277,7 @@ static int poll_idle(struct cpuidle_device *dev,
 
 static void poll_idle_init(struct cpuidle_driver *drv)
 {
-	struct cpuidle_state *state = &drv->states[0];
+	cpuidle_state_no_const *state = &drv->states[0];
 
 	snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
 	snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
index ea2f8e7..70ac501 100644
--- a/drivers/cpuidle/governor.c
+++ b/drivers/cpuidle/governor.c
@@ -87,7 +87,7 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
 	mutex_lock(&cpuidle_lock);
 	if (__cpuidle_find_governor(gov->name) == NULL) {
 		ret = 0;
-		list_add_tail(&gov->governor_list, &cpuidle_governors);
+		pax_list_add_tail((struct list_head *)&gov->governor_list, &cpuidle_governors);
 		if (!cpuidle_curr_governor ||
 		    cpuidle_curr_governor->rating < gov->rating)
 			cpuidle_switch_governor(gov);
@@ -135,7 +135,7 @@ void cpuidle_unregister_governor(struct cpuidle_governor *gov)
 		new_gov = cpuidle_replace_governor(gov->rating);
 		cpuidle_switch_governor(new_gov);
 	}
-	list_del(&gov->governor_list);
+	pax_list_del((struct list_head *)&gov->governor_list);
 	mutex_unlock(&cpuidle_lock);
 }
 
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 428754a..8bdf9cc 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -131,7 +131,7 @@ static struct attribute *cpuidle_switch_attrs[] = {
 	NULL
 };
 
-static struct attribute_group cpuidle_attr_group = {
+static attribute_group_no_const cpuidle_attr_group = {
 	.attrs = cpuidle_default_attrs,
 	.name = "cpuidle",
 };
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 3b36797..289c16a 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -588,7 +588,7 @@ int devfreq_add_governor(struct devfreq_governor *governor)
 		goto err_out;
 	}
 
-	list_add(&governor->node, &devfreq_governor_list);
+	pax_list_add((struct list_head *)&governor->node, &devfreq_governor_list);
 
 	list_for_each_entry(devfreq, &devfreq_list, node) {
 		int ret = 0;
@@ -676,7 +676,7 @@ int devfreq_remove_governor(struct devfreq_governor *governor)
 		}
 	}
 
-	list_del(&governor->node);
+	pax_list_del((struct list_head *)&governor->node);
 err_out:
 	mutex_unlock(&devfreq_list_lock);
 
diff --git a/drivers/dma/sh/shdma.c b/drivers/dma/sh/shdma.c
index b70709b..1d8d02a 100644
--- a/drivers/dma/sh/shdma.c
+++ b/drivers/dma/sh/shdma.c
@@ -476,7 +476,7 @@ static int sh_dmae_nmi_handler(struct notifier_block *self,
 	return ret;
 }
 
-static struct notifier_block sh_dmae_nmi_notifier __read_mostly = {
+static struct notifier_block sh_dmae_nmi_notifier = {
 	.notifier_call	= sh_dmae_nmi_handler,
 
 	/* Run before NMI debug handler and KGDB */
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 769d92e..a3dcc1e 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -148,7 +148,7 @@ static const char *edac_caps[] = {
 struct dev_ch_attribute {
 	struct device_attribute attr;
 	int channel;
-};
+} __do_const;
 
 #define DEVICE_CHANNEL(_name, _mode, _show, _store, _var) \
 	struct dev_ch_attribute dev_attr_legacy_##_name = \
@@ -1003,14 +1003,16 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
 	}
 
 	if (mci->set_sdram_scrub_rate || mci->get_sdram_scrub_rate) {
+		pax_open_kernel();
 		if (mci->get_sdram_scrub_rate) {
-			dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
-			dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
+			*(umode_t *)&dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
+			*(void **)&dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
 		}
 		if (mci->set_sdram_scrub_rate) {
-			dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
-			dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
+			*(umode_t *)&dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
+			*(void **)&dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
 		}
+		pax_close_kernel();
 		err = device_create_file(&mci->dev,
 					 &dev_attr_sdram_scrub_rate);
 		if (err) {
diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
index e8658e4..22746d6 100644
--- a/drivers/edac/edac_pci_sysfs.c
+++ b/drivers/edac/edac_pci_sysfs.c
@@ -26,8 +26,8 @@ static int edac_pci_log_pe = 1;		/* log PCI parity errors */
 static int edac_pci_log_npe = 1;	/* log PCI non-parity error errors */
 static int edac_pci_poll_msec = 1000;	/* one second workq period */
 
-static atomic_t pci_parity_count = ATOMIC_INIT(0);
-static atomic_t pci_nonparity_count = ATOMIC_INIT(0);
+static atomic_unchecked_t pci_parity_count = ATOMIC_INIT(0);
+static atomic_unchecked_t pci_nonparity_count = ATOMIC_INIT(0);
 
 static struct kobject *edac_pci_top_main_kobj;
 static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0);
@@ -235,7 +235,7 @@ struct edac_pci_dev_attribute {
 	void *value;
 	 ssize_t(*show) (void *, char *);
 	 ssize_t(*store) (void *, const char *, size_t);
-};
+} __do_const;
 
 /* Set of show/store abstract level functions for PCI Parity object */
 static ssize_t edac_pci_dev_show(struct kobject *kobj, struct attribute *attr,
@@ -579,7 +579,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 			edac_printk(KERN_CRIT, EDAC_PCI,
 				"Signaled System Error on %s\n",
 				pci_name(dev));
-			atomic_inc(&pci_nonparity_count);
+			atomic_inc_unchecked(&pci_nonparity_count);
 		}
 
 		if (status & (PCI_STATUS_PARITY)) {
@@ -587,7 +587,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 				"Master Data Parity Error on %s\n",
 				pci_name(dev));
 
-			atomic_inc(&pci_parity_count);
+			atomic_inc_unchecked(&pci_parity_count);
 		}
 
 		if (status & (PCI_STATUS_DETECTED_PARITY)) {
@@ -595,7 +595,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 				"Detected Parity Error on %s\n",
 				pci_name(dev));
 
-			atomic_inc(&pci_parity_count);
+			atomic_inc_unchecked(&pci_parity_count);
 		}
 	}
 
@@ -618,7 +618,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 				edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
 					"Signaled System Error on %s\n",
 					pci_name(dev));
-				atomic_inc(&pci_nonparity_count);
+				atomic_inc_unchecked(&pci_nonparity_count);
 			}
 
 			if (status & (PCI_STATUS_PARITY)) {
@@ -626,7 +626,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 					"Master Data Parity Error on "
 					"%s\n", pci_name(dev));
 
-				atomic_inc(&pci_parity_count);
+				atomic_inc_unchecked(&pci_parity_count);
 			}
 
 			if (status & (PCI_STATUS_DETECTED_PARITY)) {
@@ -634,7 +634,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 					"Detected Parity Error on %s\n",
 					pci_name(dev));
 
-				atomic_inc(&pci_parity_count);
+				atomic_inc_unchecked(&pci_parity_count);
 			}
 		}
 	}
@@ -672,7 +672,7 @@ void edac_pci_do_parity_check(void)
 	if (!check_pci_errors)
 		return;
 
-	before_count = atomic_read(&pci_parity_count);
+	before_count = atomic_read_unchecked(&pci_parity_count);
 
 	/* scan all PCI devices looking for a Parity Error on devices and
 	 * bridges.
@@ -684,7 +684,7 @@ void edac_pci_do_parity_check(void)
 	/* Only if operator has selected panic on PCI Error */
 	if (edac_pci_get_panic_on_pe()) {
 		/* If the count is different 'after' from 'before' */
-		if (before_count != atomic_read(&pci_parity_count))
+		if (before_count != atomic_read_unchecked(&pci_parity_count))
 			panic("EDAC: PCI Parity Error");
 	}
 }
diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h
index 51b7e3a..aa8a3e8 100644
--- a/drivers/edac/mce_amd.h
+++ b/drivers/edac/mce_amd.h
@@ -77,7 +77,7 @@ struct amd_decoder_ops {
 	bool (*mc0_mce)(u16, u8);
 	bool (*mc1_mce)(u16, u8);
 	bool (*mc2_mce)(u16, u8);
-};
+} __no_const;
 
 void amd_report_gart_errors(bool);
 void amd_register_ecc_decoder(void (*f)(int, struct mce *));
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
index 57ea7f4..789e3c3 100644
--- a/drivers/firewire/core-card.c
+++ b/drivers/firewire/core-card.c
@@ -680,7 +680,7 @@ EXPORT_SYMBOL_GPL(fw_card_release);
 
 void fw_core_remove_card(struct fw_card *card)
 {
-	struct fw_card_driver dummy_driver = dummy_driver_template;
+	fw_card_driver_no_const dummy_driver = dummy_driver_template;
 
 	card->driver->update_phy_reg(card, 4,
 				     PHY_LINK_ACTIVE | PHY_CONTENDER, 0);
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 27ac423..13573e8 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -1366,8 +1366,7 @@ static int init_iso_resource(struct client *client,
 	int ret;
 
 	if ((request->channels == 0 && request->bandwidth == 0) ||
-	    request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL ||
-	    request->bandwidth < 0)
+	    request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL)
 		return -EINVAL;
 
 	r  = kmalloc(sizeof(*r), GFP_KERNEL);
diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
index 03ce7d9..b70f5da 100644
--- a/drivers/firewire/core-device.c
+++ b/drivers/firewire/core-device.c
@@ -232,7 +232,7 @@ EXPORT_SYMBOL(fw_device_enable_phys_dma);
 struct config_rom_attribute {
 	struct device_attribute attr;
 	u32 key;
-};
+} __do_const;
 
 static ssize_t show_immediate(struct device *dev,
 			      struct device_attribute *dattr, char *buf)
diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
index 28a94c7..58da63a 100644
--- a/drivers/firewire/core-transaction.c
+++ b/drivers/firewire/core-transaction.c
@@ -38,6 +38,7 @@
 #include <linux/timer.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
+#include <linux/sched.h>
 
 #include <asm/byteorder.h>
 
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
index 515a42c..5ecf3ba 100644
--- a/drivers/firewire/core.h
+++ b/drivers/firewire/core.h
@@ -111,6 +111,7 @@ struct fw_card_driver {
 
 	int (*stop_iso)(struct fw_iso_context *ctx);
 };
+typedef struct fw_card_driver __no_const fw_card_driver_no_const;
 
 void fw_card_initialize(struct fw_card *card,
 		const struct fw_card_driver *driver, struct device *device);
diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c
index 94a58a0..f5eba42 100644
--- a/drivers/firmware/dmi-id.c
+++ b/drivers/firmware/dmi-id.c
@@ -16,7 +16,7 @@
 struct dmi_device_attribute{
 	struct device_attribute dev_attr;
 	int field;
-};
+} __do_const;
 #define to_dmi_dev_attr(_dev_attr) \
 	container_of(_dev_attr, struct dmi_device_attribute, dev_attr)
 
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 4cd392d..4b629e1 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -490,11 +490,6 @@ void __init dmi_scan_machine(void)
 		}
 	}
 	else {
-		/*
-		 * no iounmap() for that ioremap(); it would be a no-op, but
-		 * it's so early in setup that sucker gets confused into doing
-		 * what it shouldn't if we actually call it.
-		 */
 		p = dmi_ioremap(0xF0000, 0x10000);
 		if (p == NULL)
 			goto error;
@@ -769,7 +764,7 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *),
 	if (buf == NULL)
 		return -1;
 
-	dmi_table(buf, dmi_len, dmi_num, decode, private_data);
+	dmi_table((char __force_kernel *)buf, dmi_len, dmi_num, decode, private_data);
 
 	iounmap(buf);
 	return 0;
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index f4baa11..7970c3a 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -139,7 +139,7 @@ struct efivar_attribute {
 };
 
 static struct efivars __efivars;
-static struct efivar_operations ops;
+static efivar_operations_no_const ops __read_only;
 
 #define PSTORE_EFI_ATTRIBUTES \
 	(EFI_VARIABLE_NON_VOLATILE | \
@@ -1844,7 +1844,7 @@ efivar_create_sysfs_entry(struct efivars *efivars,
 static int
 create_efivars_bin_attributes(struct efivars *efivars)
 {
-	struct bin_attribute *attr;
+	bin_attribute_no_const *attr;
 	int error;
 
 	/* new_var */
diff --git a/drivers/firmware/google/memconsole.c b/drivers/firmware/google/memconsole.c
index 2a90ba6..07f3733 100644
--- a/drivers/firmware/google/memconsole.c
+++ b/drivers/firmware/google/memconsole.c
@@ -147,7 +147,9 @@ static int __init memconsole_init(void)
 	if (!found_memconsole())
 		return -ENODEV;
 
-	memconsole_bin_attr.size = memconsole_length;
+	pax_open_kernel();
+	*(size_t *)&memconsole_bin_attr.size = memconsole_length;
+	pax_close_kernel();
 
 	ret = sysfs_create_bin_file(firmware_kobj, &memconsole_bin_attr);
 
diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
index de3c317..b7cd029 100644
--- a/drivers/gpio/gpio-ich.c
+++ b/drivers/gpio/gpio-ich.c
@@ -69,7 +69,7 @@ struct ichx_desc {
 	/* Some chipsets have quirks, let these use their own request/get */
 	int (*request)(struct gpio_chip *chip, unsigned offset);
 	int (*get)(struct gpio_chip *chip, unsigned offset);
-};
+} __do_const;
 
 static struct {
 	spinlock_t lock;
diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
index 9902732..64b62dd 100644
--- a/drivers/gpio/gpio-vr41xx.c
+++ b/drivers/gpio/gpio-vr41xx.c
@@ -204,7 +204,7 @@ static int giu_get_irq(unsigned int irq)
 	printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n",
 	       maskl, pendl, maskh, pendh);
 
-	atomic_inc(&irq_err_count);
+	atomic_inc_unchecked(&irq_err_count);
 
 	return -EINVAL;
 }
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 7b2d378..cc947ea 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -319,7 +319,7 @@ static bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
 	struct drm_crtc *tmp;
 	int crtc_mask = 1;
 
-	WARN(!crtc, "checking null crtc?\n");
+	BUG_ON(!crtc);
 
 	dev = crtc->dev;
 
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 25f91cd..a376f55 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -306,7 +306,7 @@ module_exit(drm_core_exit);
 /**
  * Copy and IOCTL return string to user space
  */
-static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
+static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
 {
 	int len;
 
@@ -376,7 +376,7 @@ long drm_ioctl(struct file *filp,
 	struct drm_file *file_priv = filp->private_data;
 	struct drm_device *dev;
 	struct drm_ioctl_desc *ioctl;
-	drm_ioctl_t *func;
+	drm_ioctl_no_const_t func;
 	unsigned int nr = DRM_IOCTL_NR(cmd);
 	int retcode = -EINVAL;
 	char stack_kdata[128];
@@ -389,7 +389,7 @@ long drm_ioctl(struct file *filp,
 		return -ENODEV;
 
 	atomic_inc(&dev->ioctl_count);
-	atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
+	atomic_inc_unchecked(&dev->counts[_DRM_STAT_IOCTLS]);
 	++file_priv->ioctl_count;
 
 	DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 429e07d..e681a2c 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -71,7 +71,7 @@ static int drm_setup(struct drm_device * dev)
 	}
 
 	for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
-		atomic_set(&dev->counts[i], 0);
+		atomic_set_unchecked(&dev->counts[i], 0);
 
 	dev->sigdata.lock = NULL;
 
@@ -135,7 +135,7 @@ int drm_open(struct inode *inode, struct file *filp)
 	if (drm_device_is_unplugged(dev))
 		return -ENODEV;
 
-	if (!dev->open_count++)
+	if (local_inc_return(&dev->open_count) == 1)
 		need_setup = 1;
 	mutex_lock(&dev->struct_mutex);
 	old_imapping = inode->i_mapping;
@@ -151,7 +151,7 @@ int drm_open(struct inode *inode, struct file *filp)
 	retcode = drm_open_helper(inode, filp, dev);
 	if (retcode)
 		goto err_undo;
-	atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
+	atomic_inc_unchecked(&dev->counts[_DRM_STAT_OPENS]);
 	if (need_setup) {
 		retcode = drm_setup(dev);
 		if (retcode)
@@ -166,7 +166,7 @@ err_undo:
 	iput(container_of(dev->dev_mapping, struct inode, i_data));
 	dev->dev_mapping = old_mapping;
 	mutex_unlock(&dev->struct_mutex);
-	dev->open_count--;
+	local_dec(&dev->open_count);
 	return retcode;
 }
 EXPORT_SYMBOL(drm_open);
@@ -441,7 +441,7 @@ int drm_release(struct inode *inode, struct file *filp)
 
 	mutex_lock(&drm_global_mutex);
 
-	DRM_DEBUG("open_count = %d\n", dev->open_count);
+	DRM_DEBUG("open_count = %ld\n", local_read(&dev->open_count));
 
 	if (dev->driver->preclose)
 		dev->driver->preclose(dev, file_priv);
@@ -450,10 +450,10 @@ int drm_release(struct inode *inode, struct file *filp)
 	 * Begin inline drm_release
 	 */
 
-	DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
+	DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %ld\n",
 		  task_pid_nr(current),
 		  (long)old_encode_dev(file_priv->minor->device),
-		  dev->open_count);
+		  local_read(&dev->open_count));
 
 	/* Release any auth tokens that might point to this file_priv,
 	   (do that under the drm_global_mutex) */
@@ -550,8 +550,8 @@ int drm_release(struct inode *inode, struct file *filp)
 	 * End inline drm_release
 	 */
 
-	atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
-	if (!--dev->open_count) {
+	atomic_inc_unchecked(&dev->counts[_DRM_STAT_CLOSES]);
+	if (local_dec_and_test(&dev->open_count)) {
 		if (atomic_read(&dev->ioctl_count)) {
 			DRM_ERROR("Device busy: %d\n",
 				  atomic_read(&dev->ioctl_count));
diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c
index f731116..629842c 100644
--- a/drivers/gpu/drm/drm_global.c
+++ b/drivers/gpu/drm/drm_global.c
@@ -36,7 +36,7 @@
 struct drm_global_item {
 	struct mutex mutex;
 	void *object;
-	int refcount;
+	atomic_t refcount;
 };
 
 static struct drm_global_item glob[DRM_GLOBAL_NUM];
@@ -49,7 +49,7 @@ void drm_global_init(void)
 		struct drm_global_item *item = &glob[i];
 		mutex_init(&item->mutex);
 		item->object = NULL;
-		item->refcount = 0;
+		atomic_set(&item->refcount, 0);
 	}
 }
 
@@ -59,7 +59,7 @@ void drm_global_release(void)
 	for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
 		struct drm_global_item *item = &glob[i];
 		BUG_ON(item->object != NULL);
-		BUG_ON(item->refcount != 0);
+		BUG_ON(atomic_read(&item->refcount) != 0);
 	}
 }
 
@@ -70,7 +70,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
 	void *object;
 
 	mutex_lock(&item->mutex);
-	if (item->refcount == 0) {
+	if (atomic_read(&item->refcount) == 0) {
 		item->object = kzalloc(ref->size, GFP_KERNEL);
 		if (unlikely(item->object == NULL)) {
 			ret = -ENOMEM;
@@ -83,7 +83,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
 			goto out_err;
 
 	}
-	++item->refcount;
+	atomic_inc(&item->refcount);
 	ref->object = item->object;
 	object = item->object;
 	mutex_unlock(&item->mutex);
@@ -100,9 +100,9 @@ void drm_global_item_unref(struct drm_global_reference *ref)
 	struct drm_global_item *item = &glob[ref->global_type];
 
 	mutex_lock(&item->mutex);
-	BUG_ON(item->refcount == 0);
+	BUG_ON(atomic_read(&item->refcount) == 0);
 	BUG_ON(ref->object != item->object);
-	if (--item->refcount == 0) {
+	if (atomic_dec_and_test(&item->refcount)) {
 		ref->release(ref);
 		item->object = NULL;
 	}
diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
index d4b20ce..77a8d41 100644
--- a/drivers/gpu/drm/drm_info.c
+++ b/drivers/gpu/drm/drm_info.c
@@ -75,10 +75,14 @@ int drm_vm_info(struct seq_file *m, void *data)
 	struct drm_local_map *map;
 	struct drm_map_list *r_list;
 
-	/* Hardcoded from _DRM_FRAME_BUFFER,
-	   _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
-	   _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
-	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
+	static const char * const types[] = {
+		[_DRM_FRAME_BUFFER] = "FB",
+		[_DRM_REGISTERS] = "REG",
+		[_DRM_SHM] = "SHM",
+		[_DRM_AGP] = "AGP",
+		[_DRM_SCATTER_GATHER] = "SG",
+		[_DRM_CONSISTENT] = "PCI",
+		[_DRM_GEM] = "GEM" };
 	const char *type;
 	int i;
 
@@ -89,7 +93,7 @@ int drm_vm_info(struct seq_file *m, void *data)
 		map = r_list->map;
 		if (!map)
 			continue;
-		if (map->type < 0 || map->type > 5)
+		if (map->type >= ARRAY_SIZE(types))
 			type = "??";
 		else
 			type = types[map->type];
@@ -253,7 +257,11 @@ int drm_vma_info(struct seq_file *m, void *data)
 			   vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
 			   vma->vm_flags & VM_LOCKED ? 'l' : '-',
 			   vma->vm_flags & VM_IO ? 'i' : '-',
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+			   0);
+#else
 			   vma->vm_pgoff);
+#endif
 
 #if defined(__i386__)
 		pgprot = pgprot_val(vma->vm_page_prot);
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index 2f4c434..dd12cd2 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -457,7 +457,7 @@ static int compat_drm_infobufs(struct file *file, unsigned int cmd,
 	request = compat_alloc_user_space(nbytes);
 	if (!access_ok(VERIFY_WRITE, request, nbytes))
 		return -EFAULT;
-	list = (struct drm_buf_desc *) (request + 1);
+	list = (struct drm_buf_desc __user *) (request + 1);
 
 	if (__put_user(count, &request->count)
 	    || __put_user(list, &request->list))
@@ -518,7 +518,7 @@ static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
 	request = compat_alloc_user_space(nbytes);
 	if (!access_ok(VERIFY_WRITE, request, nbytes))
 		return -EFAULT;
-	list = (struct drm_buf_pub *) (request + 1);
+	list = (struct drm_buf_pub __user *) (request + 1);
 
 	if (__put_user(count, &request->count)
 	    || __put_user(list, &request->list))
@@ -1016,7 +1016,7 @@ static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
 	return 0;
 }
 
-drm_ioctl_compat_t *drm_compat_ioctls[] = {
+drm_ioctl_compat_t drm_compat_ioctls[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
 	[DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
 	[DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
@@ -1062,7 +1062,6 @@ drm_ioctl_compat_t *drm_compat_ioctls[] = {
 long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn;
 	int ret;
 
 	/* Assume that ioctls without an explicit compat routine will just
@@ -1072,10 +1071,8 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	if (nr >= ARRAY_SIZE(drm_compat_ioctls))
 		return drm_ioctl(filp, cmd, arg);
 
-	fn = drm_compat_ioctls[nr];
-
-	if (fn != NULL)
-		ret = (*fn) (filp, cmd, arg);
+	if (drm_compat_ioctls[nr] != NULL)
+		ret = (*drm_compat_ioctls[nr]) (filp, cmd, arg);
 	else
 		ret = drm_ioctl(filp, cmd, arg);
 
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index e77bd8b..1571b85 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -252,7 +252,7 @@ int drm_getstats(struct drm_device *dev, void *data,
 			stats->data[i].value =
 			    (file_priv->master->lock.hw_lock ? file_priv->master->lock.hw_lock->lock : 0);
 		else
-			stats->data[i].value = atomic_read(&dev->counts[i]);
+			stats->data[i].value = atomic_read_unchecked(&dev->counts[i]);
 		stats->data[i].type = dev->types[i];
 	}
 
diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
index d752c96..fe08455 100644
--- a/drivers/gpu/drm/drm_lock.c
+++ b/drivers/gpu/drm/drm_lock.c
@@ -86,7 +86,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
 		if (drm_lock_take(&master->lock, lock->context)) {
 			master->lock.file_priv = file_priv;
 			master->lock.lock_time = jiffies;
-			atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
+			atomic_inc_unchecked(&dev->counts[_DRM_STAT_LOCKS]);
 			break;	/* Got lock */
 		}
 
@@ -157,7 +157,7 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv)
 		return -EINVAL;
 	}
 
-	atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]);
+	atomic_inc_unchecked(&dev->counts[_DRM_STAT_UNLOCKS]);
 
 	if (drm_lock_free(&master->lock, lock->context)) {
 		/* FIXME: Should really bail out here. */
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 7d30802..42c6cbb 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -501,7 +501,7 @@ void drm_unplug_dev(struct drm_device *dev)
 
 	drm_device_set_unplugged(dev);
 
-	if (dev->open_count == 0) {
+	if (local_read(&dev->open_count) == 0) {
 		drm_put_dev(dev);
 	}
 	mutex_unlock(&drm_global_mutex);
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index 004ecdf..db1f6e0 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -945,8 +945,8 @@ static int i810_dma_vertex(struct drm_device *dev, void *data,
 				 dma->buflist[vertex->idx],
 				 vertex->discard, vertex->used);
 
-	atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
-	atomic_inc(&dev->counts[_DRM_STAT_DMA]);
+	atomic_add_unchecked(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
+	atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]);
 	sarea_priv->last_enqueue = dev_priv->counter - 1;
 	sarea_priv->last_dispatch = (int)hw_status[5];
 
@@ -1106,8 +1106,8 @@ static int i810_dma_mc(struct drm_device *dev, void *data,
 	i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
 			     mc->last_render);
 
-	atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
-	atomic_inc(&dev->counts[_DRM_STAT_DMA]);
+	atomic_add_unchecked(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
+	atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]);
 	sarea_priv->last_enqueue = dev_priv->counter - 1;
 	sarea_priv->last_dispatch = (int)hw_status[5];
 
diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
index 6e0acad..93c8289 100644
--- a/drivers/gpu/drm/i810/i810_drv.h
+++ b/drivers/gpu/drm/i810/i810_drv.h
@@ -108,8 +108,8 @@ typedef struct drm_i810_private {
 	int page_flipping;
 
 	wait_queue_head_t irq_queue;
-	atomic_t irq_received;
-	atomic_t irq_emitted;
+	atomic_unchecked_t irq_received;
+	atomic_unchecked_t irq_emitted;
 
 	int front_offset;
 } drm_i810_private_t;
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 7299ea4..5314487 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -499,7 +499,7 @@ static int i915_interrupt_info(struct seq_file *m, void *data)
 			   I915_READ(GTIMR));
 	}
 	seq_printf(m, "Interrupts received: %d\n",
-		   atomic_read(&dev_priv->irq_received));
+		   atomic_read_unchecked(&dev_priv->irq_received));
 	for_each_ring(ring, dev_priv, i) {
 		if (IS_GEN6(dev) || IS_GEN7(dev)) {
 			seq_printf(m,
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 4fa6beb..f930fec 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1259,7 +1259,7 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
 	bool can_switch;
 
 	spin_lock(&dev->count_lock);
-	can_switch = (dev->open_count == 0);
+	can_switch = (local_read(&dev->open_count) == 0);
 	spin_unlock(&dev->count_lock);
 	return can_switch;
 }
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index ef99b1c..09ce7fb 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -893,7 +893,7 @@ typedef struct drm_i915_private {
 	drm_dma_handle_t *status_page_dmah;
 	struct resource mch_res;
 
-	atomic_t irq_received;
+	atomic_unchecked_t irq_received;
 
 	/* protects the irq masks */
 	spinlock_t irq_lock;
@@ -1775,7 +1775,7 @@ extern struct i2c_adapter *intel_gmbus_get_adapter(
 		struct drm_i915_private *dev_priv, unsigned port);
 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
-extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
+static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
 {
 	return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
 }
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 9a48e1a..f0cbc3e 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -729,9 +729,9 @@ i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec)
 
 static int
 validate_exec_list(struct drm_i915_gem_exec_object2 *exec,
-		   int count)
+		   unsigned int count)
 {
-	int i;
+	unsigned int i;
 	int relocs_total = 0;
 	int relocs_max = INT_MAX / sizeof(struct drm_i915_gem_relocation_entry);
 
@@ -1195,7 +1195,7 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data,
 		return -ENOMEM;
 	}
 	ret = copy_from_user(exec2_list,
-			     (struct drm_i915_relocation_entry __user *)
+			     (struct drm_i915_gem_exec_object2 __user *)
 			     (uintptr_t) args->buffers_ptr,
 			     sizeof(*exec2_list) * args->buffer_count);
 	if (ret != 0) {
diff --git a/drivers/gpu/drm/i915/i915_ioc32.c b/drivers/gpu/drm/i915/i915_ioc32.c
index 3c59584..500f2e9 100644
--- a/drivers/gpu/drm/i915/i915_ioc32.c
+++ b/drivers/gpu/drm/i915/i915_ioc32.c
@@ -181,7 +181,7 @@ static int compat_i915_alloc(struct file *file, unsigned int cmd,
 			 (unsigned long)request);
 }
 
-static drm_ioctl_compat_t *i915_compat_ioctls[] = {
+static drm_ioctl_compat_t i915_compat_ioctls[] = {
 	[DRM_I915_BATCHBUFFER] = compat_i915_batchbuffer,
 	[DRM_I915_CMDBUFFER] = compat_i915_cmdbuffer,
 	[DRM_I915_GETPARAM] = compat_i915_getparam,
@@ -202,18 +202,15 @@ static drm_ioctl_compat_t *i915_compat_ioctls[] = {
 long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
 	int ret;
 
 	if (nr < DRM_COMMAND_BASE)
 		return drm_compat_ioctl(filp, cmd, arg);
 
-	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(i915_compat_ioctls))
-		fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
-
-	if (fn != NULL)
+	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(i915_compat_ioctls)) {
+		drm_ioctl_compat_t fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
 		ret = (*fn) (filp, cmd, arg);
-	else
+	} else
 		ret = drm_ioctl(filp, cmd, arg);
 
 	return ret;
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 3c7bb04..182e049 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -549,7 +549,7 @@ static irqreturn_t valleyview_irq_handler(int irq, void *arg)
 	int pipe;
 	u32 pipe_stats[I915_MAX_PIPES];
 
-	atomic_inc(&dev_priv->irq_received);
+	atomic_inc_unchecked(&dev_priv->irq_received);
 
 	while (true) {
 		iir = I915_READ(VLV_IIR);
@@ -705,7 +705,7 @@ static irqreturn_t ivybridge_irq_handler(int irq, void *arg)
 	irqreturn_t ret = IRQ_NONE;
 	int i;
 
-	atomic_inc(&dev_priv->irq_received);
+	atomic_inc_unchecked(&dev_priv->irq_received);
 
 	/* disable master interrupt before clearing iir  */
 	de_ier = I915_READ(DEIER);
@@ -791,7 +791,7 @@ static irqreturn_t ironlake_irq_handler(int irq, void *arg)
 	int ret = IRQ_NONE;
 	u32 de_iir, gt_iir, de_ier, pm_iir, sde_ier;
 
-	atomic_inc(&dev_priv->irq_received);
+	atomic_inc_unchecked(&dev_priv->irq_received);
 
 	/* disable master interrupt before clearing iir  */
 	de_ier = I915_READ(DEIER);
@@ -1886,7 +1886,7 @@ static void ironlake_irq_preinstall(struct drm_device *dev)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
-	atomic_set(&dev_priv->irq_received, 0);
+	atomic_set_unchecked(&dev_priv->irq_received, 0);
 
 	I915_WRITE(HWSTAM, 0xeffe);
 
@@ -1912,7 +1912,7 @@ static void valleyview_irq_preinstall(struct drm_device *dev)
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 	int pipe;
 
-	atomic_set(&dev_priv->irq_received, 0);
+	atomic_set_unchecked(&dev_priv->irq_received, 0);
 
 	/* VLV magic */
 	I915_WRITE(VLV_IMR, 0);
@@ -2208,7 +2208,7 @@ static void i8xx_irq_preinstall(struct drm_device * dev)
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 	int pipe;
 
-	atomic_set(&dev_priv->irq_received, 0);
+	atomic_set_unchecked(&dev_priv->irq_received, 0);
 
 	for_each_pipe(pipe)
 		I915_WRITE(PIPESTAT(pipe), 0);
@@ -2259,7 +2259,7 @@ static irqreturn_t i8xx_irq_handler(int irq, void *arg)
 		I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
 		I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT;
 
-	atomic_inc(&dev_priv->irq_received);
+	atomic_inc_unchecked(&dev_priv->irq_received);
 
 	iir = I915_READ16(IIR);
 	if (iir == 0)
@@ -2344,7 +2344,7 @@ static void i915_irq_preinstall(struct drm_device * dev)
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 	int pipe;
 
-	atomic_set(&dev_priv->irq_received, 0);
+	atomic_set_unchecked(&dev_priv->irq_received, 0);
 
 	if (I915_HAS_HOTPLUG(dev)) {
 		I915_WRITE(PORT_HOTPLUG_EN, 0);
@@ -2448,7 +2448,7 @@ static irqreturn_t i915_irq_handler(int irq, void *arg)
 	};
 	int pipe, ret = IRQ_NONE;
 
-	atomic_inc(&dev_priv->irq_received);
+	atomic_inc_unchecked(&dev_priv->irq_received);
 
 	iir = I915_READ(IIR);
 	do {
@@ -2574,7 +2574,7 @@ static void i965_irq_preinstall(struct drm_device * dev)
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 	int pipe;
 
-	atomic_set(&dev_priv->irq_received, 0);
+	atomic_set_unchecked(&dev_priv->irq_received, 0);
 
 	I915_WRITE(PORT_HOTPLUG_EN, 0);
 	I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT));
@@ -2690,7 +2690,7 @@ static irqreturn_t i965_irq_handler(int irq, void *arg)
 	int irq_received;
 	int ret = IRQ_NONE, pipe;
 
-	atomic_inc(&dev_priv->irq_received);
+	atomic_inc_unchecked(&dev_priv->irq_received);
 
 	iir = I915_READ(IIR);
 
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index c2d173a..f4357cc 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8722,13 +8722,13 @@ struct intel_quirk {
 	int subsystem_vendor;
 	int subsystem_device;
 	void (*hook)(struct drm_device *dev);
-};
+} __do_const;
 
 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
 struct intel_dmi_quirk {
 	void (*hook)(struct drm_device *dev);
 	const struct dmi_system_id (*dmi_id_list)[];
-};
+} __do_const;
 
 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
 {
@@ -8736,18 +8736,20 @@ static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
 	return 1;
 }
 
-static const struct intel_dmi_quirk intel_dmi_quirks[] = {
+static const struct dmi_system_id intel_dmi_quirks_table[] = {
 	{
-		.dmi_id_list = &(const struct dmi_system_id[]) {
-			{
-				.callback = intel_dmi_reverse_brightness,
-				.ident = "NCR Corporation",
-				.matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
-					    DMI_MATCH(DMI_PRODUCT_NAME, ""),
-				},
-			},
-			{ }  /* terminating entry */
+		.callback = intel_dmi_reverse_brightness,
+		.ident = "NCR Corporation",
+		.matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
+			    DMI_MATCH(DMI_PRODUCT_NAME, ""),
 		},
+	},
+	{ }  /* terminating entry */
+};
+
+static const struct intel_dmi_quirk intel_dmi_quirks[] = {
+	{
+		.dmi_id_list = &intel_dmi_quirks_table,
 		.hook = quirk_invert_brightness,
 	},
 };
diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
index 54558a0..2d97005 100644
--- a/drivers/gpu/drm/mga/mga_drv.h
+++ b/drivers/gpu/drm/mga/mga_drv.h
@@ -120,9 +120,9 @@ typedef struct drm_mga_private {
 	u32 clear_cmd;
 	u32 maccess;
 
-	atomic_t vbl_received;          /**< Number of vblanks received. */
+	atomic_unchecked_t vbl_received;          /**< Number of vblanks received. */
 	wait_queue_head_t fence_queue;
-	atomic_t last_fence_retired;
+	atomic_unchecked_t last_fence_retired;
 	u32 next_fence_to_post;
 
 	unsigned int fb_cpp;
diff --git a/drivers/gpu/drm/mga/mga_ioc32.c b/drivers/gpu/drm/mga/mga_ioc32.c
index 709e90d..89a1c0d 100644
--- a/drivers/gpu/drm/mga/mga_ioc32.c
+++ b/drivers/gpu/drm/mga/mga_ioc32.c
@@ -189,7 +189,7 @@ static int compat_mga_dma_bootstrap(struct file *file, unsigned int cmd,
 	return 0;
 }
 
-drm_ioctl_compat_t *mga_compat_ioctls[] = {
+drm_ioctl_compat_t mga_compat_ioctls[] = {
 	[DRM_MGA_INIT] = compat_mga_init,
 	[DRM_MGA_GETPARAM] = compat_mga_getparam,
 	[DRM_MGA_DMA_BOOTSTRAP] = compat_mga_dma_bootstrap,
@@ -207,18 +207,15 @@ drm_ioctl_compat_t *mga_compat_ioctls[] = {
 long mga_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
 	int ret;
 
 	if (nr < DRM_COMMAND_BASE)
 		return drm_compat_ioctl(filp, cmd, arg);
 
-	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(mga_compat_ioctls))
-		fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE];
-
-	if (fn != NULL)
+	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(mga_compat_ioctls)) {
+		drm_ioctl_compat_t fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE];
 		ret = (*fn) (filp, cmd, arg);
-	else
+	} else
 		ret = drm_ioctl(filp, cmd, arg);
 
 	return ret;
diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c
index 598c281..60d590e 100644
--- a/drivers/gpu/drm/mga/mga_irq.c
+++ b/drivers/gpu/drm/mga/mga_irq.c
@@ -43,7 +43,7 @@ u32 mga_get_vblank_counter(struct drm_device *dev, int crtc)
 	if (crtc != 0)
 		return 0;
 
-	return atomic_read(&dev_priv->vbl_received);
+	return atomic_read_unchecked(&dev_priv->vbl_received);
 }
 
 
@@ -59,7 +59,7 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS)
 	/* VBLANK interrupt */
 	if (status & MGA_VLINEPEN) {
 		MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR);
-		atomic_inc(&dev_priv->vbl_received);
+		atomic_inc_unchecked(&dev_priv->vbl_received);
 		drm_handle_vblank(dev, 0);
 		handled = 1;
 	}
@@ -78,7 +78,7 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS)
 		if ((prim_start & ~0x03) != (prim_end & ~0x03))
 			MGA_WRITE(MGA_PRIMEND, prim_end);
 
-		atomic_inc(&dev_priv->last_fence_retired);
+		atomic_inc_unchecked(&dev_priv->last_fence_retired);
 		DRM_WAKEUP(&dev_priv->fence_queue);
 		handled = 1;
 	}
@@ -129,7 +129,7 @@ int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence)
 	 * using fences.
 	 */
 	DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * DRM_HZ,
-		    (((cur_fence = atomic_read(&dev_priv->last_fence_retired))
+		    (((cur_fence = atomic_read_unchecked(&dev_priv->last_fence_retired))
 		      - *sequence) <= (1 << 23)));
 
 	*sequence = cur_fence;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 50a6dd0..ea66ed8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -965,7 +965,7 @@ static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios,
 struct bit_table {
 	const char id;
 	int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
-};
+} __no_const;
 
 #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h
index 9c39baf..30a22be 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.h
@@ -81,7 +81,7 @@ struct nouveau_drm {
 		struct drm_global_reference mem_global_ref;
 		struct ttm_bo_global_ref bo_global_ref;
 		struct ttm_bo_device bdev;
-		atomic_t validate_sequence;
+		atomic_unchecked_t validate_sequence;
 		int (*move)(struct nouveau_channel *,
 			    struct ttm_buffer_object *,
 			    struct ttm_mem_reg *, struct ttm_mem_reg *);
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index b4b4d0c..b7edc15 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -322,7 +322,7 @@ validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
 	int ret, i;
 	struct nouveau_bo *res_bo = NULL;
 
-	sequence = atomic_add_return(1, &drm->ttm.validate_sequence);
+	sequence = atomic_add_return_unchecked(1, &drm->ttm.validate_sequence);
 retry:
 	if (++trycnt > 100000) {
 		NV_ERROR(cli, "%s failed and gave up.\n", __func__);
@@ -359,7 +359,7 @@ retry:
 		if (ret) {
 			validate_fini(op, NULL);
 			if (unlikely(ret == -EAGAIN)) {
-				sequence = atomic_add_return(1, &drm->ttm.validate_sequence);
+				sequence = atomic_add_return_unchecked(1, &drm->ttm.validate_sequence);
 				ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
 							      sequence);
 				if (!ret)
diff --git a/drivers/gpu/drm/nouveau/nouveau_ioc32.c b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
index 08214bc..9208577 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ioc32.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
@@ -50,7 +50,7 @@ long nouveau_compat_ioctl(struct file *filp, unsigned int cmd,
 			 unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
+	drm_ioctl_compat_t fn = NULL;
 	int ret;
 
 	if (nr < DRM_COMMAND_BASE)
diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
index 25d3495..d81aaf6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vga.c
+++ b/drivers/gpu/drm/nouveau/nouveau_vga.c
@@ -62,7 +62,7 @@ nouveau_switcheroo_can_switch(struct pci_dev *pdev)
 	bool can_switch;
 
 	spin_lock(&dev->count_lock);
-	can_switch = (dev->open_count == 0);
+	can_switch = (local_read(&dev->open_count) == 0);
 	spin_unlock(&dev->count_lock);
 	return can_switch;
 }
diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
index d4660cf..70dbe65 100644
--- a/drivers/gpu/drm/r128/r128_cce.c
+++ b/drivers/gpu/drm/r128/r128_cce.c
@@ -377,7 +377,7 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init)
 
 	/* GH: Simple idle check.
 	 */
-	atomic_set(&dev_priv->idle_count, 0);
+	atomic_set_unchecked(&dev_priv->idle_count, 0);
 
 	/* We don't support anything other than bus-mastering ring mode,
 	 * but the ring can be in either AGP or PCI space for the ring
diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h
index 930c71b..499aded 100644
--- a/drivers/gpu/drm/r128/r128_drv.h
+++ b/drivers/gpu/drm/r128/r128_drv.h
@@ -90,14 +90,14 @@ typedef struct drm_r128_private {
 	int is_pci;
 	unsigned long cce_buffers_offset;
 
-	atomic_t idle_count;
+	atomic_unchecked_t idle_count;
 
 	int page_flipping;
 	int current_page;
 	u32 crtc_offset;
 	u32 crtc_offset_cntl;
 
-	atomic_t vbl_received;
+	atomic_unchecked_t vbl_received;
 
 	u32 color_fmt;
 	unsigned int front_offset;
diff --git a/drivers/gpu/drm/r128/r128_ioc32.c b/drivers/gpu/drm/r128/r128_ioc32.c
index a954c54..9cc595c 100644
--- a/drivers/gpu/drm/r128/r128_ioc32.c
+++ b/drivers/gpu/drm/r128/r128_ioc32.c
@@ -177,7 +177,7 @@ static int compat_r128_getparam(struct file *file, unsigned int cmd,
 	return drm_ioctl(file, DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam);
 }
 
-drm_ioctl_compat_t *r128_compat_ioctls[] = {
+drm_ioctl_compat_t r128_compat_ioctls[] = {
 	[DRM_R128_INIT] = compat_r128_init,
 	[DRM_R128_DEPTH] = compat_r128_depth,
 	[DRM_R128_STIPPLE] = compat_r128_stipple,
@@ -196,18 +196,15 @@ drm_ioctl_compat_t *r128_compat_ioctls[] = {
 long r128_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
 	int ret;
 
 	if (nr < DRM_COMMAND_BASE)
 		return drm_compat_ioctl(filp, cmd, arg);
 
-	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(r128_compat_ioctls))
-		fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
-
-	if (fn != NULL)
+	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(r128_compat_ioctls)) {
+		drm_ioctl_compat_t fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
 		ret = (*fn) (filp, cmd, arg);
-	else
+	} else
 		ret = drm_ioctl(filp, cmd, arg);
 
 	return ret;
diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c
index 2ea4f09..d391371 100644
--- a/drivers/gpu/drm/r128/r128_irq.c
+++ b/drivers/gpu/drm/r128/r128_irq.c
@@ -41,7 +41,7 @@ u32 r128_get_vblank_counter(struct drm_device *dev, int crtc)
 	if (crtc != 0)
 		return 0;
 
-	return atomic_read(&dev_priv->vbl_received);
+	return atomic_read_unchecked(&dev_priv->vbl_received);
 }
 
 irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS)
@@ -55,7 +55,7 @@ irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS)
 	/* VBLANK interrupt */
 	if (status & R128_CRTC_VBLANK_INT) {
 		R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
-		atomic_inc(&dev_priv->vbl_received);
+		atomic_inc_unchecked(&dev_priv->vbl_received);
 		drm_handle_vblank(dev, 0);
 		return IRQ_HANDLED;
 	}
diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c
index 19bb7e6..de7e2a2 100644
--- a/drivers/gpu/drm/r128/r128_state.c
+++ b/drivers/gpu/drm/r128/r128_state.c
@@ -320,10 +320,10 @@ static void r128_clear_box(drm_r128_private_t *dev_priv,
 
 static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv)
 {
-	if (atomic_read(&dev_priv->idle_count) == 0)
+	if (atomic_read_unchecked(&dev_priv->idle_count) == 0)
 		r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
 	else
-		atomic_set(&dev_priv->idle_count, 0);
+		atomic_set_unchecked(&dev_priv->idle_count, 0);
 }
 
 #endif
diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c
index 5a82b6b..9e69c73 100644
--- a/drivers/gpu/drm/radeon/mkregtable.c
+++ b/drivers/gpu/drm/radeon/mkregtable.c
@@ -637,14 +637,14 @@ static int parser_auth(struct table *t, const char *filename)
 	regex_t mask_rex;
 	regmatch_t match[4];
 	char buf[1024];
-	size_t end;
+	long end;
 	int len;
 	int done = 0;
 	int r;
 	unsigned o;
 	struct offset *offset;
 	char last_reg_s[10];
-	int last_reg;
+	unsigned long last_reg;
 
 	if (regcomp
 	    (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) {
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 44b8034..cc722fd 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -977,7 +977,7 @@ static bool radeon_switcheroo_can_switch(struct pci_dev *pdev)
 	bool can_switch;
 
 	spin_lock(&dev->count_lock);
-	can_switch = (dev->open_count == 0);
+	can_switch = (local_read(&dev->open_count) == 0);
 	spin_unlock(&dev->count_lock);
 	return can_switch;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
index b369d42..8dd04eb 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.h
+++ b/drivers/gpu/drm/radeon/radeon_drv.h
@@ -258,7 +258,7 @@ typedef struct drm_radeon_private {
 
 	/* SW interrupt */
 	wait_queue_head_t swi_queue;
-	atomic_t swi_emitted;
+	atomic_unchecked_t swi_emitted;
 	int vblank_crtc;
 	uint32_t irq_enable_reg;
 	uint32_t r500_disp_irq_reg;
diff --git a/drivers/gpu/drm/radeon/radeon_ioc32.c b/drivers/gpu/drm/radeon/radeon_ioc32.c
index c180df8..5fd8186 100644
--- a/drivers/gpu/drm/radeon/radeon_ioc32.c
+++ b/drivers/gpu/drm/radeon/radeon_ioc32.c
@@ -358,7 +358,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
 	request = compat_alloc_user_space(sizeof(*request));
 	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
 	    || __put_user(req32.param, &request->param)
-	    || __put_user((void __user *)(unsigned long)req32.value,
+	    || __put_user((unsigned long)req32.value,
 			  &request->value))
 		return -EFAULT;
 
@@ -368,7 +368,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
 #define compat_radeon_cp_setparam NULL
 #endif /* X86_64 || IA64 */
 
-static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
+static drm_ioctl_compat_t radeon_compat_ioctls[] = {
 	[DRM_RADEON_CP_INIT] = compat_radeon_cp_init,
 	[DRM_RADEON_CLEAR] = compat_radeon_cp_clear,
 	[DRM_RADEON_STIPPLE] = compat_radeon_cp_stipple,
@@ -393,18 +393,15 @@ static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
 long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
 	int ret;
 
 	if (nr < DRM_COMMAND_BASE)
 		return drm_compat_ioctl(filp, cmd, arg);
 
-	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(radeon_compat_ioctls))
-		fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE];
-
-	if (fn != NULL)
+	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(radeon_compat_ioctls)) {
+		drm_ioctl_compat_t fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE];
 		ret = (*fn) (filp, cmd, arg);
-	else
+	} else
 		ret = drm_ioctl(filp, cmd, arg);
 
 	return ret;
diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c
index 8d68e97..9dcfed8 100644
--- a/drivers/gpu/drm/radeon/radeon_irq.c
+++ b/drivers/gpu/drm/radeon/radeon_irq.c
@@ -226,8 +226,8 @@ static int radeon_emit_irq(struct drm_device * dev)
 	unsigned int ret;
 	RING_LOCALS;
 
-	atomic_inc(&dev_priv->swi_emitted);
-	ret = atomic_read(&dev_priv->swi_emitted);
+	atomic_inc_unchecked(&dev_priv->swi_emitted);
+	ret = atomic_read_unchecked(&dev_priv->swi_emitted);
 
 	BEGIN_RING(4);
 	OUT_RING_REG(RADEON_LAST_SWI_REG, ret);
@@ -353,7 +353,7 @@ int radeon_driver_irq_postinstall(struct drm_device *dev)
 	drm_radeon_private_t *dev_priv =
 	    (drm_radeon_private_t *) dev->dev_private;
 
-	atomic_set(&dev_priv->swi_emitted, 0);
+	atomic_set_unchecked(&dev_priv->swi_emitted, 0);
 	DRM_INIT_WAITQUEUE(&dev_priv->swi_queue);
 
 	dev->max_vblank_count = 0x001fffff;
diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
index 4d20910..6726b6d 100644
--- a/drivers/gpu/drm/radeon/radeon_state.c
+++ b/drivers/gpu/drm/radeon/radeon_state.c
@@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_device *dev, void *data, struct drm_file *
 	if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS)
 		sarea_priv->nbox = RADEON_NR_SAREA_CLIPRECTS;
 
-	if (DRM_COPY_FROM_USER(&depth_boxes, clear->depth_boxes,
+	if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS || DRM_COPY_FROM_USER(&depth_boxes, clear->depth_boxes,
 			       sarea_priv->nbox * sizeof(depth_boxes[0])))
 		return -EFAULT;
 
@@ -3031,7 +3031,7 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil
 {
 	drm_radeon_private_t *dev_priv = dev->dev_private;
 	drm_radeon_getparam_t *param = data;
-	int value;
+	int value = 0;
 
 	DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
 
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 6c0ce89..66f6d65 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -782,7 +782,7 @@ void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
 	man->size = size >> PAGE_SHIFT;
 }
 
-static struct vm_operations_struct radeon_ttm_vm_ops;
+static vm_operations_struct_no_const radeon_ttm_vm_ops __read_only;
 static const struct vm_operations_struct *ttm_vm_ops = NULL;
 
 static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
@@ -823,8 +823,10 @@ int radeon_mmap(struct file *filp, struct vm_area_struct *vma)
 	}
 	if (unlikely(ttm_vm_ops == NULL)) {
 		ttm_vm_ops = vma->vm_ops;
+		pax_open_kernel();
 		radeon_ttm_vm_ops = *ttm_vm_ops;
 		radeon_ttm_vm_ops.fault = &radeon_ttm_fault;
+		pax_close_kernel();
 	}
 	vma->vm_ops = &radeon_ttm_vm_ops;
 	return 0;
@@ -862,28 +864,33 @@ static int radeon_ttm_debugfs_init(struct radeon_device *rdev)
 			sprintf(radeon_mem_types_names[i], "radeon_vram_mm");
 		else
 			sprintf(radeon_mem_types_names[i], "radeon_gtt_mm");
-		radeon_mem_types_list[i].name = radeon_mem_types_names[i];
-		radeon_mem_types_list[i].show = &radeon_mm_dump_table;
-		radeon_mem_types_list[i].driver_features = 0;
+		pax_open_kernel();
+		*(const char **)&radeon_mem_types_list[i].name = radeon_mem_types_names[i];
+		*(void **)&radeon_mem_types_list[i].show = &radeon_mm_dump_table;
+		*(u32 *)&radeon_mem_types_list[i].driver_features = 0;
 		if (i == 0)
-			radeon_mem_types_list[i].data = rdev->mman.bdev.man[TTM_PL_VRAM].priv;
+			*(void **)&radeon_mem_types_list[i].data = rdev->mman.bdev.man[TTM_PL_VRAM].priv;
 		else
-			radeon_mem_types_list[i].data = rdev->mman.bdev.man[TTM_PL_TT].priv;
-
+			*(void **)&radeon_mem_types_list[i].data = rdev->mman.bdev.man[TTM_PL_TT].priv;
+		pax_close_kernel();
 	}
 	/* Add ttm page pool to debugfs */
 	sprintf(radeon_mem_types_names[i], "ttm_page_pool");
-	radeon_mem_types_list[i].name = radeon_mem_types_names[i];
-	radeon_mem_types_list[i].show = &ttm_page_alloc_debugfs;
-	radeon_mem_types_list[i].driver_features = 0;
-	radeon_mem_types_list[i++].data = NULL;
+	pax_open_kernel();
+	*(const char **)&radeon_mem_types_list[i].name = radeon_mem_types_names[i];
+	*(void **)&radeon_mem_types_list[i].show = &ttm_page_alloc_debugfs;
+	*(u32 *)&radeon_mem_types_list[i].driver_features = 0;
+	*(void **)&radeon_mem_types_list[i++].data = NULL;
+	pax_close_kernel();
 #ifdef CONFIG_SWIOTLB
 	if (swiotlb_nr_tbl()) {
 		sprintf(radeon_mem_types_names[i], "ttm_dma_page_pool");
-		radeon_mem_types_list[i].name = radeon_mem_types_names[i];
-		radeon_mem_types_list[i].show = &ttm_dma_page_alloc_debugfs;
-		radeon_mem_types_list[i].driver_features = 0;
-		radeon_mem_types_list[i++].data = NULL;
+		pax_open_kernel();
+		*(const char **)&radeon_mem_types_list[i].name = radeon_mem_types_names[i];
+		*(void **)&radeon_mem_types_list[i].show = &ttm_dma_page_alloc_debugfs;
+		*(u32 *)&radeon_mem_types_list[i].driver_features = 0;
+		*(void **)&radeon_mem_types_list[i++].data = NULL;
+		pax_close_kernel();
 	}
 #endif
 	return radeon_debugfs_add_files(rdev, radeon_mem_types_list, i);
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 5706d2a..17aedaa 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -304,9 +304,11 @@ static void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
 		if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
 			rdev->pm.sideport_bandwidth.full)
 			rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth;
-		read_delay_latency.full = dfixed_const(370 * 800 * 1000);
+		read_delay_latency.full = dfixed_const(800 * 1000);
 		read_delay_latency.full = dfixed_div(read_delay_latency,
 			rdev->pm.igp_sideport_mclk);
+		a.full = dfixed_const(370);
+		read_delay_latency.full = dfixed_mul(read_delay_latency, a);
 	} else {
 		if (rdev->pm.max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
 			rdev->pm.k8_bandwidth.full)
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index bd2a3b4..122d9ad 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -394,9 +394,9 @@ static int ttm_pool_get_num_unused_pages(void)
 static int ttm_pool_mm_shrink(struct shrinker *shrink,
 			      struct shrink_control *sc)
 {
-	static atomic_t start_pool = ATOMIC_INIT(0);
+	static atomic_unchecked_t start_pool = ATOMIC_INIT(0);
 	unsigned i;
-	unsigned pool_offset = atomic_add_return(1, &start_pool);
+	unsigned pool_offset = atomic_add_return_unchecked(1, &start_pool);
 	struct ttm_page_pool *pool;
 	int shrink_pages = sc->nr_to_scan;
 
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index 9f4be3d..cbc9fcc 100644
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -367,7 +367,6 @@ static int udl_fb_release(struct fb_info *info, int user)
 		fb_deferred_io_cleanup(info);
 		kfree(info->fbdefio);
 		info->fbdefio = NULL;
-		info->fbops->fb_mmap = udl_fb_mmap;
 	}
 
 	pr_warn("released /dev/fb%d user=%d count=%d\n",
diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h
index 893a650..6190d3b 100644
--- a/drivers/gpu/drm/via/via_drv.h
+++ b/drivers/gpu/drm/via/via_drv.h
@@ -51,7 +51,7 @@ typedef struct drm_via_ring_buffer {
 typedef uint32_t maskarray_t[5];
 
 typedef struct drm_via_irq {
-	atomic_t irq_received;
+	atomic_unchecked_t irq_received;
 	uint32_t pending_mask;
 	uint32_t enable_mask;
 	wait_queue_head_t irq_queue;
@@ -75,7 +75,7 @@ typedef struct drm_via_private {
 	struct timeval last_vblank;
 	int last_vblank_valid;
 	unsigned usec_per_vblank;
-	atomic_t vbl_received;
+	atomic_unchecked_t vbl_received;
 	drm_via_state_t hc_state;
 	char pci_buf[VIA_PCI_BUF_SIZE];
 	const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c
index ac98964..5dbf512 100644
--- a/drivers/gpu/drm/via/via_irq.c
+++ b/drivers/gpu/drm/via/via_irq.c
@@ -101,7 +101,7 @@ u32 via_get_vblank_counter(struct drm_device *dev, int crtc)
 	if (crtc != 0)
 		return 0;
 
-	return atomic_read(&dev_priv->vbl_received);
+	return atomic_read_unchecked(&dev_priv->vbl_received);
 }
 
 irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
@@ -116,8 +116,8 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
 
 	status = VIA_READ(VIA_REG_INTERRUPT);
 	if (status & VIA_IRQ_VBLANK_PENDING) {
-		atomic_inc(&dev_priv->vbl_received);
-		if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
+		atomic_inc_unchecked(&dev_priv->vbl_received);
+		if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0x0F)) {
 			do_gettimeofday(&cur_vblank);
 			if (dev_priv->last_vblank_valid) {
 				dev_priv->usec_per_vblank =
@@ -127,7 +127,7 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
 			dev_priv->last_vblank = cur_vblank;
 			dev_priv->last_vblank_valid = 1;
 		}
-		if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) {
+		if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0xFF)) {
 			DRM_DEBUG("US per vblank is: %u\n",
 				  dev_priv->usec_per_vblank);
 		}
@@ -137,7 +137,7 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
 
 	for (i = 0; i < dev_priv->num_irqs; ++i) {
 		if (status & cur_irq->pending_mask) {
-			atomic_inc(&cur_irq->irq_received);
+			atomic_inc_unchecked(&cur_irq->irq_received);
 			DRM_WAKEUP(&cur_irq->irq_queue);
 			handled = 1;
 			if (dev_priv->irq_map[drm_via_irq_dma0_td] == i)
@@ -242,11 +242,11 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence
 		DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ,
 			    ((VIA_READ(masks[irq][2]) & masks[irq][3]) ==
 			     masks[irq][4]));
-		cur_irq_sequence = atomic_read(&cur_irq->irq_received);
+		cur_irq_sequence = atomic_read_unchecked(&cur_irq->irq_received);
 	} else {
 		DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ,
 			    (((cur_irq_sequence =
-			       atomic_read(&cur_irq->irq_received)) -
+			       atomic_read_unchecked(&cur_irq->irq_received)) -
 			      *sequence) <= (1 << 23)));
 	}
 	*sequence = cur_irq_sequence;
@@ -284,7 +284,7 @@ void via_driver_irq_preinstall(struct drm_device *dev)
 		}
 
 		for (i = 0; i < dev_priv->num_irqs; ++i) {
-			atomic_set(&cur_irq->irq_received, 0);
+			atomic_set_unchecked(&cur_irq->irq_received, 0);
 			cur_irq->enable_mask = dev_priv->irq_masks[i][0];
 			cur_irq->pending_mask = dev_priv->irq_masks[i][1];
 			DRM_INIT_WAITQUEUE(&cur_irq->irq_queue);
@@ -366,7 +366,7 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv)
 	switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) {
 	case VIA_IRQ_RELATIVE:
 		irqwait->request.sequence +=
-			atomic_read(&cur_irq->irq_received);
+			atomic_read_unchecked(&cur_irq->irq_received);
 		irqwait->request.type &= ~_DRM_VBLANK_RELATIVE;
 	case VIA_IRQ_ABSOLUTE:
 		break;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 13aeda7..4a952d1 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -290,7 +290,7 @@ struct vmw_private {
 	 * Fencing and IRQs.
 	 */
 
-	atomic_t marker_seq;
+	atomic_unchecked_t marker_seq;
 	wait_queue_head_t fence_queue;
 	wait_queue_head_t fifo_queue;
 	int fence_queue_waiters; /* Protected by hw_mutex */
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
index 3eb1486..0a47ee9 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -137,7 +137,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
 		 (unsigned int) min,
 		 (unsigned int) fifo->capabilities);
 
-	atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
+	atomic_set_unchecked(&dev_priv->marker_seq, dev_priv->last_read_seqno);
 	iowrite32(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE);
 	vmw_marker_queue_init(&fifo->marker_queue);
 	return vmw_fifo_send_fence(dev_priv, &dummy);
@@ -355,7 +355,7 @@ void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes)
 				if (reserveable)
 					iowrite32(bytes, fifo_mem +
 						  SVGA_FIFO_RESERVED);
-				return fifo_mem + (next_cmd >> 2);
+				return (__le32 __force_kernel *)fifo_mem + (next_cmd >> 2);
 			} else {
 				need_bounce = true;
 			}
@@ -475,7 +475,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
 
 	fm = vmw_fifo_reserve(dev_priv, bytes);
 	if (unlikely(fm == NULL)) {
-		*seqno = atomic_read(&dev_priv->marker_seq);
+		*seqno = atomic_read_unchecked(&dev_priv->marker_seq);
 		ret = -ENOMEM;
 		(void)vmw_fallback_wait(dev_priv, false, true, *seqno,
 					false, 3*HZ);
@@ -483,7 +483,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
 	}
 
 	do {
-		*seqno = atomic_add_return(1, &dev_priv->marker_seq);
+		*seqno = atomic_add_return_unchecked(1, &dev_priv->marker_seq);
 	} while (*seqno == 0);
 
 	if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
index c509d40..3b640c3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -138,7 +138,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
 	int ret;
 
 	num_clips = arg->num_clips;
-	clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
+	clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
 
 	if (unlikely(num_clips == 0))
 		return 0;
@@ -222,7 +222,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
 	int ret;
 
 	num_clips = arg->num_clips;
-	clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
+	clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
 
 	if (unlikely(num_clips == 0))
 		return 0;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
index 4640adb..e1384ed 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
@@ -107,7 +107,7 @@ bool vmw_seqno_passed(struct vmw_private *dev_priv,
 	 * emitted. Then the fence is stale and signaled.
 	 */
 
-	ret = ((atomic_read(&dev_priv->marker_seq) - seqno)
+	ret = ((atomic_read_unchecked(&dev_priv->marker_seq) - seqno)
 	       > VMW_FENCE_WRAP);
 
 	return ret;
@@ -138,7 +138,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
 
 	if (fifo_idle)
 		down_read(&fifo_state->rwsem);
-	signal_seq = atomic_read(&dev_priv->marker_seq);
+	signal_seq = atomic_read_unchecked(&dev_priv->marker_seq);
 	ret = 0;
 
 	for (;;) {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
index 8a8725c2..afed796 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
@@ -151,7 +151,7 @@ int vmw_wait_lag(struct vmw_private *dev_priv,
 	while (!vmw_lag_lt(queue, us)) {
 		spin_lock(&queue->lock);
 		if (list_empty(&queue->head))
-			seqno = atomic_read(&dev_priv->marker_seq);
+			seqno = atomic_read_unchecked(&dev_priv->marker_seq);
 		else {
 			marker = list_first_entry(&queue->head,
 						 struct vmw_marker, head);
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e6dbf09..3dd2540 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2268,7 +2268,7 @@ EXPORT_SYMBOL_GPL(hid_ignore);
 
 int hid_add_device(struct hid_device *hdev)
 {
-	static atomic_t id = ATOMIC_INIT(0);
+	static atomic_unchecked_t id = ATOMIC_INIT(0);
 	int ret;
 
 	if (WARN_ON(hdev->status & HID_STAT_ADDED))
@@ -2302,7 +2302,7 @@ int hid_add_device(struct hid_device *hdev)
 	/* XXX hack, any other cleaner solution after the driver core
 	 * is converted to allow more than 20 bytes as the device name? */
 	dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
-		     hdev->vendor, hdev->product, atomic_inc_return(&id));
+		     hdev->vendor, hdev->product, atomic_inc_return_unchecked(&id));
 
 	hid_debug_register(hdev, dev_name(&hdev->dev));
 	ret = device_add(&hdev->dev);
diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c
index 90124ff..3761764 100644
--- a/drivers/hid/hid-wiimote-debug.c
+++ b/drivers/hid/hid-wiimote-debug.c
@@ -66,7 +66,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
 	else if (size == 0)
 		return -EIO;
 
-	if (copy_to_user(u, buf, size))
+	if (size > sizeof(buf) || copy_to_user(u, buf, size))
 		return -EFAULT;
 
 	*off += size;
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 0b122f8..b1d8160 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -394,8 +394,8 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
 	int ret = 0;
 	int t;
 
-	next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle);
-	atomic_inc(&vmbus_connection.next_gpadl_handle);
+	next_gpadl_handle = atomic_read_unchecked(&vmbus_connection.next_gpadl_handle);
+	atomic_inc_unchecked(&vmbus_connection.next_gpadl_handle);
 
 	ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount);
 	if (ret)
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 7311589..861e9ef 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -112,7 +112,7 @@ static u64 do_hypercall(u64 control, void *input, void *output)
 	u64 output_address = (output) ? virt_to_phys(output) : 0;
 	u32 output_address_hi = output_address >> 32;
 	u32 output_address_lo = output_address & 0xFFFFFFFF;
-	void *hypercall_page = hv_context.hypercall_page;
+	void *hypercall_page = ktva_ktla(hv_context.hypercall_page);
 
 	__asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi),
 			      "=a"(hv_status_lo) : "d" (control_hi),
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 12f2f9e..679603c 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -591,7 +591,7 @@ enum vmbus_connect_state {
 struct vmbus_connection {
 	enum vmbus_connect_state conn_state;
 
-	atomic_t next_gpadl_handle;
+	atomic_unchecked_t next_gpadl_handle;
 
 	/*
 	 * Represents channel interrupts. Each bit position represents a
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index bf421e0..ce2c897 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -668,10 +668,10 @@ int vmbus_device_register(struct hv_device *child_device_obj)
 {
 	int ret = 0;
 
-	static atomic_t device_num = ATOMIC_INIT(0);
+	static atomic_unchecked_t device_num = ATOMIC_INIT(0);
 
 	dev_set_name(&child_device_obj->device, "vmbus_0_%d",
-		     atomic_inc_return(&device_num));
+		     atomic_inc_return_unchecked(&device_num));
 
 	child_device_obj->device.bus = &hv_bus;
 	child_device_obj->device.parent = &hv_acpi_dev->dev;
diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index 6351aba..dc4aaf4 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -117,7 +117,7 @@ struct sensor_template {
 		       struct device_attribute *devattr,
 		       const char *buf, size_t count);
 	int index;
-};
+} __do_const;
 
 /* Averaging interval */
 static int update_avg_interval(struct acpi_power_meter_resource *resource)
@@ -629,7 +629,7 @@ static int register_attrs(struct acpi_power_meter_resource *resource,
 			  struct sensor_template *attrs)
 {
 	struct device *dev = &resource->acpi_dev->dev;
-	struct sensor_device_attribute *sensors =
+	sensor_device_attribute_no_const *sensors =
 		&resource->sensors[resource->num_sensors];
 	int res = 0;
 
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index b41baff..4953e4d 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -1084,7 +1084,7 @@ static int applesmc_create_nodes(struct applesmc_node_group *groups, int num)
 {
 	struct applesmc_node_group *grp;
 	struct applesmc_dev_attr *node;
-	struct attribute *attr;
+	attribute_no_const *attr;
 	int ret, i;
 
 	for (grp = groups; grp->format; grp++) {
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index b25c643..a13460d 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -152,10 +152,10 @@ MODULE_DEVICE_TABLE(acpi, atk_ids);
 struct atk_sensor_data {
 	struct list_head list;
 	struct atk_data *data;
-	struct device_attribute label_attr;
-	struct device_attribute input_attr;
-	struct device_attribute limit1_attr;
-	struct device_attribute limit2_attr;
+	device_attribute_no_const label_attr;
+	device_attribute_no_const input_attr;
+	device_attribute_no_const limit1_attr;
+	device_attribute_no_const limit2_attr;
 	char label_attr_name[ATTR_NAME_SIZE];
 	char input_attr_name[ATTR_NAME_SIZE];
 	char limit1_attr_name[ATTR_NAME_SIZE];
@@ -275,7 +275,7 @@ static ssize_t atk_name_show(struct device *dev,
 static struct device_attribute atk_name_attr =
 		__ATTR(name, 0444, atk_name_show, NULL);
 
-static void atk_init_attribute(struct device_attribute *attr, char *name,
+static void atk_init_attribute(device_attribute_no_const *attr, char *name,
 		sysfs_show_func show)
 {
 	sysfs_attr_init(&attr->attr);
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 3f1e297..a6cafb5 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -791,7 +791,7 @@ static int __cpuinit coretemp_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block coretemp_cpu_notifier __refdata = {
+static struct notifier_block coretemp_cpu_notifier = {
 	.notifier_call = coretemp_cpu_callback,
 };
 
diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c
index a14f634..2916ee2 100644
--- a/drivers/hwmon/ibmaem.c
+++ b/drivers/hwmon/ibmaem.c
@@ -925,7 +925,7 @@ static int aem_register_sensors(struct aem_data *data,
 				struct aem_rw_sensor_template *rw)
 {
 	struct device *dev = &data->pdev->dev;
-	struct sensor_device_attribute *sensors = data->sensors;
+	sensor_device_attribute_no_const *sensors = data->sensors;
 	int err;
 
 	/* Set up read-only sensors */
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 9add6092..ee7ba3f 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -781,7 +781,7 @@ static int pmbus_add_attribute(struct pmbus_data *data, struct attribute *attr)
 	return 0;
 }
 
-static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
+static void pmbus_dev_attr_init(device_attribute_no_const *dev_attr,
 				const char *name,
 				umode_t mode,
 				ssize_t (*show)(struct device *dev,
@@ -798,7 +798,7 @@ static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
 	dev_attr->store = store;
 }
 
-static void pmbus_attr_init(struct sensor_device_attribute *a,
+static void pmbus_attr_init(sensor_device_attribute_no_const *a,
 			    const char *name,
 			    umode_t mode,
 			    ssize_t (*show)(struct device *dev,
@@ -820,7 +820,7 @@ static int pmbus_add_boolean(struct pmbus_data *data,
 			     u16 reg, u8 mask)
 {
 	struct pmbus_boolean *boolean;
-	struct sensor_device_attribute *a;
+	sensor_device_attribute_no_const *a;
 
 	boolean = devm_kzalloc(data->dev, sizeof(*boolean), GFP_KERNEL);
 	if (!boolean)
@@ -845,7 +845,7 @@ static struct pmbus_sensor *pmbus_add_sensor(struct pmbus_data *data,
 					     bool update, bool readonly)
 {
 	struct pmbus_sensor *sensor;
-	struct device_attribute *a;
+	device_attribute_no_const *a;
 
 	sensor = devm_kzalloc(data->dev, sizeof(*sensor), GFP_KERNEL);
 	if (!sensor)
@@ -876,7 +876,7 @@ static int pmbus_add_label(struct pmbus_data *data,
 			   const char *lstring, int index)
 {
 	struct pmbus_label *label;
-	struct device_attribute *a;
+	device_attribute_no_const *a;
 
 	label = devm_kzalloc(data->dev, sizeof(*label), GFP_KERNEL);
 	if (!label)
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index 2507f90..1645765 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -169,7 +169,7 @@ struct sht15_data {
 	int				supply_uv;
 	bool				supply_uv_valid;
 	struct work_struct		update_supply_work;
-	atomic_t			interrupt_handled;
+	atomic_unchecked_t		interrupt_handled;
 };
 
 /**
@@ -542,13 +542,13 @@ static int sht15_measurement(struct sht15_data *data,
 	ret = gpio_direction_input(data->pdata->gpio_data);
 	if (ret)
 		return ret;
-	atomic_set(&data->interrupt_handled, 0);
+	atomic_set_unchecked(&data->interrupt_handled, 0);
 
 	enable_irq(gpio_to_irq(data->pdata->gpio_data));
 	if (gpio_get_value(data->pdata->gpio_data) == 0) {
 		disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
 		/* Only relevant if the interrupt hasn't occurred. */
-		if (!atomic_read(&data->interrupt_handled))
+		if (!atomic_read_unchecked(&data->interrupt_handled))
 			schedule_work(&data->read_work);
 	}
 	ret = wait_event_timeout(data->wait_queue,
@@ -820,7 +820,7 @@ static irqreturn_t sht15_interrupt_fired(int irq, void *d)
 
 	/* First disable the interrupt */
 	disable_irq_nosync(irq);
-	atomic_inc(&data->interrupt_handled);
+	atomic_inc_unchecked(&data->interrupt_handled);
 	/* Then schedule a reading work struct */
 	if (data->state != SHT15_READING_NOTHING)
 		schedule_work(&data->read_work);
@@ -842,11 +842,11 @@ static void sht15_bh_read_data(struct work_struct *work_s)
 		 * If not, then start the interrupt again - care here as could
 		 * have gone low in meantime so verify it hasn't!
 		 */
-		atomic_set(&data->interrupt_handled, 0);
+		atomic_set_unchecked(&data->interrupt_handled, 0);
 		enable_irq(gpio_to_irq(data->pdata->gpio_data));
 		/* If still not occurred or another handler was scheduled */
 		if (gpio_get_value(data->pdata->gpio_data)
-		    || atomic_read(&data->interrupt_handled))
+		    || atomic_read_unchecked(&data->interrupt_handled))
 			return;
 	}
 
diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c
index 76f157b..9c0db1b 100644
--- a/drivers/hwmon/via-cputemp.c
+++ b/drivers/hwmon/via-cputemp.c
@@ -296,7 +296,7 @@ static int __cpuinit via_cputemp_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block via_cputemp_cpu_notifier __refdata = {
+static struct notifier_block via_cputemp_cpu_notifier = {
 	.notifier_call = via_cputemp_cpu_callback,
 };
 
diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
index 378fcb5..5e91fa8 100644
--- a/drivers/i2c/busses/i2c-amd756-s4882.c
+++ b/drivers/i2c/busses/i2c-amd756-s4882.c
@@ -43,7 +43,7 @@
 extern struct i2c_adapter amd756_smbus;
 
 static struct i2c_adapter *s4882_adapter;
-static struct i2c_algorithm *s4882_algo;
+static i2c_algorithm_no_const *s4882_algo;
 
 /* Wrapper access functions for multiplexed SMBus */
 static DEFINE_MUTEX(amd756_lock);
diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c
index 29015eb..af2d8e9 100644
--- a/drivers/i2c/busses/i2c-nforce2-s4985.c
+++ b/drivers/i2c/busses/i2c-nforce2-s4985.c
@@ -41,7 +41,7 @@
 extern struct i2c_adapter *nforce2_smbus;
 
 static struct i2c_adapter *s4985_adapter;
-static struct i2c_algorithm *s4985_algo;
+static i2c_algorithm_no_const *s4985_algo;
 
 /* Wrapper access functions for multiplexed SMBus */
 static DEFINE_MUTEX(nforce2_lock);
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index c3ccdea..5b3dc1a 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -271,7 +271,7 @@ static noinline int i2cdev_ioctl_rdrw(struct i2c_client *client,
 			break;
 		}
 
-		data_ptrs[i] = (u8 __user *)rdwr_pa[i].buf;
+		data_ptrs[i] = (u8 __force_user *)rdwr_pa[i].buf;
 		rdwr_pa[i].buf = memdup_user(data_ptrs[i], rdwr_pa[i].len);
 		if (IS_ERR(rdwr_pa[i].buf)) {
 			res = PTR_ERR(rdwr_pa[i].buf);
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 8126824..55a2798 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -768,7 +768,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
 		alignment = queue_dma_alignment(q) | q->dma_pad_mask;
 		if ((unsigned long)buf & alignment
 		    || blk_rq_bytes(rq) & q->dma_pad_mask
-		    || object_is_on_stack(buf))
+		    || object_starts_on_stack(buf))
 			drive->dma = 0;
 	}
 }
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 8848f16..f8e6dd8 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -506,7 +506,7 @@ static ssize_t iio_write_channel_info(struct device *dev,
 }
 
 static
-int __iio_device_attr_init(struct device_attribute *dev_attr,
+int __iio_device_attr_init(device_attribute_no_const *dev_attr,
 			   const char *postfix,
 			   struct iio_chan_spec const *chan,
 			   ssize_t (*readfunc)(struct device *dev,
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 784b97c..c9ceadf 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -114,7 +114,7 @@ static char const counter_group_names[CM_COUNTER_GROUPS]
 
 struct cm_counter_group {
 	struct kobject obj;
-	atomic_long_t counter[CM_ATTR_COUNT];
+	atomic_long_unchecked_t counter[CM_ATTR_COUNT];
 };
 
 struct cm_counter_attribute {
@@ -1395,7 +1395,7 @@ static void cm_dup_req_handler(struct cm_work *work,
 	struct ib_mad_send_buf *msg = NULL;
 	int ret;
 
-	atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+	atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 			counter[CM_REQ_COUNTER]);
 
 	/* Quick state check to discard duplicate REQs. */
@@ -1779,7 +1779,7 @@ static void cm_dup_rep_handler(struct cm_work *work)
 	if (!cm_id_priv)
 		return;
 
-	atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+	atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 			counter[CM_REP_COUNTER]);
 	ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg);
 	if (ret)
@@ -1946,7 +1946,7 @@ static int cm_rtu_handler(struct cm_work *work)
 	if (cm_id_priv->id.state != IB_CM_REP_SENT &&
 	    cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) {
 		spin_unlock_irq(&cm_id_priv->lock);
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_RTU_COUNTER]);
 		goto out;
 	}
@@ -2129,7 +2129,7 @@ static int cm_dreq_handler(struct cm_work *work)
 	cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id,
 				   dreq_msg->local_comm_id);
 	if (!cm_id_priv) {
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_DREQ_COUNTER]);
 		cm_issue_drep(work->port, work->mad_recv_wc);
 		return -EINVAL;
@@ -2154,7 +2154,7 @@ static int cm_dreq_handler(struct cm_work *work)
 	case IB_CM_MRA_REP_RCVD:
 		break;
 	case IB_CM_TIMEWAIT:
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_DREQ_COUNTER]);
 		if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
 			goto unlock;
@@ -2168,7 +2168,7 @@ static int cm_dreq_handler(struct cm_work *work)
 			cm_free_msg(msg);
 		goto deref;
 	case IB_CM_DREQ_RCVD:
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_DREQ_COUNTER]);
 		goto unlock;
 	default:
@@ -2535,7 +2535,7 @@ static int cm_mra_handler(struct cm_work *work)
 		    ib_modify_mad(cm_id_priv->av.port->mad_agent,
 				  cm_id_priv->msg, timeout)) {
 			if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
-				atomic_long_inc(&work->port->
+				atomic_long_inc_unchecked(&work->port->
 						counter_group[CM_RECV_DUPLICATES].
 						counter[CM_MRA_COUNTER]);
 			goto out;
@@ -2544,7 +2544,7 @@ static int cm_mra_handler(struct cm_work *work)
 		break;
 	case IB_CM_MRA_REQ_RCVD:
 	case IB_CM_MRA_REP_RCVD:
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_MRA_COUNTER]);
 		/* fall through */
 	default:
@@ -2706,7 +2706,7 @@ static int cm_lap_handler(struct cm_work *work)
 	case IB_CM_LAP_IDLE:
 		break;
 	case IB_CM_MRA_LAP_SENT:
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_LAP_COUNTER]);
 		if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
 			goto unlock;
@@ -2722,7 +2722,7 @@ static int cm_lap_handler(struct cm_work *work)
 			cm_free_msg(msg);
 		goto deref;
 	case IB_CM_LAP_RCVD:
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_LAP_COUNTER]);
 		goto unlock;
 	default:
@@ -3006,7 +3006,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
 	cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv);
 	if (cur_cm_id_priv) {
 		spin_unlock_irq(&cm.lock);
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_SIDR_REQ_COUNTER]);
 		goto out; /* Duplicate message. */
 	}
@@ -3218,10 +3218,10 @@ static void cm_send_handler(struct ib_mad_agent *mad_agent,
 	if (!msg->context[0] && (attr_index != CM_REJ_COUNTER))
 		msg->retries = 1;
 
-	atomic_long_add(1 + msg->retries,
+	atomic_long_add_unchecked(1 + msg->retries,
 			&port->counter_group[CM_XMIT].counter[attr_index]);
 	if (msg->retries)
-		atomic_long_add(msg->retries,
+		atomic_long_add_unchecked(msg->retries,
 				&port->counter_group[CM_XMIT_RETRIES].
 				counter[attr_index]);
 
@@ -3431,7 +3431,7 @@ static void cm_recv_handler(struct ib_mad_agent *mad_agent,
 	}
 
 	attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id);
-	atomic_long_inc(&port->counter_group[CM_RECV].
+	atomic_long_inc_unchecked(&port->counter_group[CM_RECV].
 			counter[attr_id - CM_ATTR_ID_OFFSET]);
 
 	work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths,
@@ -3636,7 +3636,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
 	cm_attr = container_of(attr, struct cm_counter_attribute, attr);
 
 	return sprintf(buf, "%ld\n",
-		       atomic_long_read(&group->counter[cm_attr->index]));
+		       atomic_long_read_unchecked(&group->counter[cm_attr->index]));
 }
 
 static const struct sysfs_ops cm_counter_ops = {
diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
index 9f5ad7c..588cd84 100644
--- a/drivers/infiniband/core/fmr_pool.c
+++ b/drivers/infiniband/core/fmr_pool.c
@@ -98,8 +98,8 @@ struct ib_fmr_pool {
 
 	struct task_struct       *thread;
 
-	atomic_t                  req_ser;
-	atomic_t                  flush_ser;
+	atomic_unchecked_t        req_ser;
+	atomic_unchecked_t        flush_ser;
 
 	wait_queue_head_t         force_wait;
 };
@@ -179,10 +179,10 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
 	struct ib_fmr_pool *pool = pool_ptr;
 
 	do {
-		if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) {
+		if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) < 0) {
 			ib_fmr_batch_release(pool);
 
-			atomic_inc(&pool->flush_ser);
+			atomic_inc_unchecked(&pool->flush_ser);
 			wake_up_interruptible(&pool->force_wait);
 
 			if (pool->flush_function)
@@ -190,7 +190,7 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
 		}
 
 		set_current_state(TASK_INTERRUPTIBLE);
-		if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 &&
+		if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) >= 0 &&
 		    !kthread_should_stop())
 			schedule();
 		__set_current_state(TASK_RUNNING);
@@ -282,8 +282,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd             *pd,
 	pool->dirty_watermark = params->dirty_watermark;
 	pool->dirty_len       = 0;
 	spin_lock_init(&pool->pool_lock);
-	atomic_set(&pool->req_ser,   0);
-	atomic_set(&pool->flush_ser, 0);
+	atomic_set_unchecked(&pool->req_ser,   0);
+	atomic_set_unchecked(&pool->flush_ser, 0);
 	init_waitqueue_head(&pool->force_wait);
 
 	pool->thread = kthread_run(ib_fmr_cleanup_thread,
@@ -411,11 +411,11 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool)
 	}
 	spin_unlock_irq(&pool->pool_lock);
 
-	serial = atomic_inc_return(&pool->req_ser);
+	serial = atomic_inc_return_unchecked(&pool->req_ser);
 	wake_up_process(pool->thread);
 
 	if (wait_event_interruptible(pool->force_wait,
-				     atomic_read(&pool->flush_ser) - serial >= 0))
+				     atomic_read_unchecked(&pool->flush_ser) - serial >= 0))
 		return -EINTR;
 
 	return 0;
@@ -525,7 +525,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr)
 		} else {
 			list_add_tail(&fmr->list, &pool->dirty_list);
 			if (++pool->dirty_len >= pool->dirty_watermark) {
-				atomic_inc(&pool->req_ser);
+				atomic_inc_unchecked(&pool->req_ser);
 				wake_up_process(pool->thread);
 			}
 		}
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index 903a92d..9262548 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -122,7 +122,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
 	int err;
 	struct fw_ri_tpte tpt;
 	u32 stag_idx;
-	static atomic_t key;
+	static atomic_unchecked_t key;
 
 	if (c4iw_fatal_error(rdev))
 		return -EIO;
@@ -139,7 +139,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
 		if (rdev->stats.stag.cur > rdev->stats.stag.max)
 			rdev->stats.stag.max = rdev->stats.stag.cur;
 		mutex_unlock(&rdev->stats.lock);
-		*stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff);
+		*stag = (stag_idx << 8) | (atomic_inc_return_unchecked(&key) & 0xff);
 	}
 	PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n",
 	     __func__, stag_state, type, pdid, stag_idx);
diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
index 79b3dbc..96e5fcc 100644
--- a/drivers/infiniband/hw/ipath/ipath_rc.c
+++ b/drivers/infiniband/hw/ipath/ipath_rc.c
@@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
 		struct ib_atomic_eth *ateth;
 		struct ipath_ack_entry *e;
 		u64 vaddr;
-		atomic64_t *maddr;
+		atomic64_unchecked_t *maddr;
 		u64 sdata;
 		u32 rkey;
 		u8 next;
@@ -1903,11 +1903,11 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
 					    IB_ACCESS_REMOTE_ATOMIC)))
 			goto nack_acc_unlck;
 		/* Perform atomic OP and save result. */
-		maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
+		maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
 		sdata = be64_to_cpu(ateth->swap_data);
 		e = &qp->s_ack_queue[qp->r_head_ack_queue];
 		e->atomic_data = (opcode == OP(FETCH_ADD)) ?
-			(u64) atomic64_add_return(sdata, maddr) - sdata :
+			(u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
 			(u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
 				      be64_to_cpu(ateth->compare_data),
 				      sdata);
diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c
index 1f95bba..9530f87 100644
--- a/drivers/infiniband/hw/ipath/ipath_ruc.c
+++ b/drivers/infiniband/hw/ipath/ipath_ruc.c
@@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
 	unsigned long flags;
 	struct ib_wc wc;
 	u64 sdata;
-	atomic64_t *maddr;
+	atomic64_unchecked_t *maddr;
 	enum ib_wc_status send_status;
 
 	/*
@@ -382,11 +382,11 @@ again:
 					    IB_ACCESS_REMOTE_ATOMIC)))
 			goto acc_err;
 		/* Perform atomic OP and save result. */
-		maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
+		maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
 		sdata = wqe->wr.wr.atomic.compare_add;
 		*(u64 *) sqp->s_sge.sge.vaddr =
 			(wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) ?
-			(u64) atomic64_add_return(sdata, maddr) - sdata :
+			(u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
 			(u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
 				      sdata, wqe->wr.wr.atomic.swap);
 		goto send_comp;
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index 9d3e5c1..d9afe4a 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -772,7 +772,7 @@ static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base)
 	mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n");
 }
 
-int mthca_QUERY_FW(struct mthca_dev *dev)
+int __intentional_overflow(-1) mthca_QUERY_FW(struct mthca_dev *dev)
 {
 	struct mthca_mailbox *mailbox;
 	u32 *outbox;
diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c
index ed9a989..e0c5871 100644
--- a/drivers/infiniband/hw/mthca/mthca_mr.c
+++ b/drivers/infiniband/hw/mthca/mthca_mr.c
@@ -426,7 +426,7 @@ static inline u32 adjust_key(struct mthca_dev *dev, u32 key)
 		return key;
 }
 
-int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
+int __intentional_overflow(-1) mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
 		   u64 iova, u64 total_size, u32 access, struct mthca_mr *mr)
 {
 	struct mthca_mailbox *mailbox;
diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
index 4291410..d2ab1fb 100644
--- a/drivers/infiniband/hw/nes/nes.c
+++ b/drivers/infiniband/hw/nes/nes.c
@@ -98,7 +98,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
 LIST_HEAD(nes_adapter_list);
 static LIST_HEAD(nes_dev_list);
 
-atomic_t qps_destroyed;
+atomic_unchecked_t qps_destroyed;
 
 static unsigned int ee_flsh_adapter;
 static unsigned int sysfs_nonidx_addr;
@@ -269,7 +269,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r
 	struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 	struct nes_adapter *nesadapter = nesdev->nesadapter;
 
-	atomic_inc(&qps_destroyed);
+	atomic_inc_unchecked(&qps_destroyed);
 
 	/* Free the control structures */
 
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
index 33cc589..3bd6538 100644
--- a/drivers/infiniband/hw/nes/nes.h
+++ b/drivers/infiniband/hw/nes/nes.h
@@ -177,17 +177,17 @@ extern unsigned int nes_debug_level;
 extern unsigned int wqm_quanta;
 extern struct list_head nes_adapter_list;
 
-extern atomic_t cm_connects;
-extern atomic_t cm_accepts;
-extern atomic_t cm_disconnects;
-extern atomic_t cm_closes;
-extern atomic_t cm_connecteds;
-extern atomic_t cm_connect_reqs;
-extern atomic_t cm_rejects;
-extern atomic_t mod_qp_timouts;
-extern atomic_t qps_created;
-extern atomic_t qps_destroyed;
-extern atomic_t sw_qps_destroyed;
+extern atomic_unchecked_t cm_connects;
+extern atomic_unchecked_t cm_accepts;
+extern atomic_unchecked_t cm_disconnects;
+extern atomic_unchecked_t cm_closes;
+extern atomic_unchecked_t cm_connecteds;
+extern atomic_unchecked_t cm_connect_reqs;
+extern atomic_unchecked_t cm_rejects;
+extern atomic_unchecked_t mod_qp_timouts;
+extern atomic_unchecked_t qps_created;
+extern atomic_unchecked_t qps_destroyed;
+extern atomic_unchecked_t sw_qps_destroyed;
 extern u32 mh_detected;
 extern u32 mh_pauses_sent;
 extern u32 cm_packets_sent;
@@ -196,16 +196,16 @@ extern u32 cm_packets_created;
 extern u32 cm_packets_received;
 extern u32 cm_packets_dropped;
 extern u32 cm_packets_retrans;
-extern atomic_t cm_listens_created;
-extern atomic_t cm_listens_destroyed;
+extern atomic_unchecked_t cm_listens_created;
+extern atomic_unchecked_t cm_listens_destroyed;
 extern u32 cm_backlog_drops;
-extern atomic_t cm_loopbacks;
-extern atomic_t cm_nodes_created;
-extern atomic_t cm_nodes_destroyed;
-extern atomic_t cm_accel_dropped_pkts;
-extern atomic_t cm_resets_recvd;
-extern atomic_t pau_qps_created;
-extern atomic_t pau_qps_destroyed;
+extern atomic_unchecked_t cm_loopbacks;
+extern atomic_unchecked_t cm_nodes_created;
+extern atomic_unchecked_t cm_nodes_destroyed;
+extern atomic_unchecked_t cm_accel_dropped_pkts;
+extern atomic_unchecked_t cm_resets_recvd;
+extern atomic_unchecked_t pau_qps_created;
+extern atomic_unchecked_t pau_qps_destroyed;
 
 extern u32 int_mod_timer_init;
 extern u32 int_mod_cq_depth_256;
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 24b9f1a..00fd004 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -68,14 +68,14 @@ u32 cm_packets_dropped;
 u32 cm_packets_retrans;
 u32 cm_packets_created;
 u32 cm_packets_received;
-atomic_t cm_listens_created;
-atomic_t cm_listens_destroyed;
+atomic_unchecked_t cm_listens_created;
+atomic_unchecked_t cm_listens_destroyed;
 u32 cm_backlog_drops;
-atomic_t cm_loopbacks;
-atomic_t cm_nodes_created;
-atomic_t cm_nodes_destroyed;
-atomic_t cm_accel_dropped_pkts;
-atomic_t cm_resets_recvd;
+atomic_unchecked_t cm_loopbacks;
+atomic_unchecked_t cm_nodes_created;
+atomic_unchecked_t cm_nodes_destroyed;
+atomic_unchecked_t cm_accel_dropped_pkts;
+atomic_unchecked_t cm_resets_recvd;
 
 static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
 static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *);
@@ -148,13 +148,13 @@ static struct nes_cm_ops nes_cm_api = {
 
 static struct nes_cm_core *g_cm_core;
 
-atomic_t cm_connects;
-atomic_t cm_accepts;
-atomic_t cm_disconnects;
-atomic_t cm_closes;
-atomic_t cm_connecteds;
-atomic_t cm_connect_reqs;
-atomic_t cm_rejects;
+atomic_unchecked_t cm_connects;
+atomic_unchecked_t cm_accepts;
+atomic_unchecked_t cm_disconnects;
+atomic_unchecked_t cm_closes;
+atomic_unchecked_t cm_connecteds;
+atomic_unchecked_t cm_connect_reqs;
+atomic_unchecked_t cm_rejects;
 
 int nes_add_ref_cm_node(struct nes_cm_node *cm_node)
 {
@@ -1272,7 +1272,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
 		kfree(listener);
 		listener = NULL;
 		ret = 0;
-		atomic_inc(&cm_listens_destroyed);
+		atomic_inc_unchecked(&cm_listens_destroyed);
 	} else {
 		spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
 	}
@@ -1466,7 +1466,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
 		  cm_node->rem_mac);
 
 	add_hte_node(cm_core, cm_node);
-	atomic_inc(&cm_nodes_created);
+	atomic_inc_unchecked(&cm_nodes_created);
 
 	return cm_node;
 }
@@ -1524,7 +1524,7 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core,
 	}
 
 	atomic_dec(&cm_core->node_cnt);
-	atomic_inc(&cm_nodes_destroyed);
+	atomic_inc_unchecked(&cm_nodes_destroyed);
 	nesqp = cm_node->nesqp;
 	if (nesqp) {
 		nesqp->cm_node = NULL;
@@ -1588,7 +1588,7 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc,
 
 static void drop_packet(struct sk_buff *skb)
 {
-	atomic_inc(&cm_accel_dropped_pkts);
+	atomic_inc_unchecked(&cm_accel_dropped_pkts);
 	dev_kfree_skb_any(skb);
 }
 
@@ -1651,7 +1651,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
 {
 
 	int	reset = 0;	/* whether to send reset in case of err.. */
-	atomic_inc(&cm_resets_recvd);
+	atomic_inc_unchecked(&cm_resets_recvd);
 	nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u."
 			" refcnt=%d\n", cm_node, cm_node->state,
 			atomic_read(&cm_node->ref_count));
@@ -2292,7 +2292,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
 				rem_ref_cm_node(cm_node->cm_core, cm_node);
 				return NULL;
 			}
-			atomic_inc(&cm_loopbacks);
+			atomic_inc_unchecked(&cm_loopbacks);
 			loopbackremotenode->loopbackpartner = cm_node;
 			loopbackremotenode->tcp_cntxt.rcv_wscale =
 				NES_CM_DEFAULT_RCV_WND_SCALE;
@@ -2567,7 +2567,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core,
 				nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp);
 			else {
 				rem_ref_cm_node(cm_core, cm_node);
-				atomic_inc(&cm_accel_dropped_pkts);
+				atomic_inc_unchecked(&cm_accel_dropped_pkts);
 				dev_kfree_skb_any(skb);
 			}
 			break;
@@ -2875,7 +2875,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
 
 	if ((cm_id) && (cm_id->event_handler)) {
 		if (issue_disconn) {
-			atomic_inc(&cm_disconnects);
+			atomic_inc_unchecked(&cm_disconnects);
 			cm_event.event = IW_CM_EVENT_DISCONNECT;
 			cm_event.status = disconn_status;
 			cm_event.local_addr = cm_id->local_addr;
@@ -2897,7 +2897,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
 		}
 
 		if (issue_close) {
-			atomic_inc(&cm_closes);
+			atomic_inc_unchecked(&cm_closes);
 			nes_disconnect(nesqp, 1);
 
 			cm_id->provider_data = nesqp;
@@ -3033,7 +3033,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 
 	nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n",
 		nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener);
-	atomic_inc(&cm_accepts);
+	atomic_inc_unchecked(&cm_accepts);
 
 	nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
 			netdev_refcnt_read(nesvnic->netdev));
@@ -3228,7 +3228,7 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
 	struct nes_cm_core *cm_core;
 	u8 *start_buff;
 
-	atomic_inc(&cm_rejects);
+	atomic_inc_unchecked(&cm_rejects);
 	cm_node = (struct nes_cm_node *)cm_id->provider_data;
 	loopback = cm_node->loopbackpartner;
 	cm_core = cm_node->cm_core;
@@ -3288,7 +3288,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 		  ntohl(cm_id->local_addr.sin_addr.s_addr),
 		  ntohs(cm_id->local_addr.sin_port));
 
-	atomic_inc(&cm_connects);
+	atomic_inc_unchecked(&cm_connects);
 	nesqp->active_conn = 1;
 
 	/* cache the cm_id in the qp */
@@ -3398,7 +3398,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog)
 			g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node);
 			return err;
 		}
-		atomic_inc(&cm_listens_created);
+		atomic_inc_unchecked(&cm_listens_created);
 	}
 
 	cm_id->add_ref(cm_id);
@@ -3499,7 +3499,7 @@ static void cm_event_connected(struct nes_cm_event *event)
 
 	if (nesqp->destroyed)
 		return;
-	atomic_inc(&cm_connecteds);
+	atomic_inc_unchecked(&cm_connecteds);
 	nes_debug(NES_DBG_CM, "QP%u attempting to connect to  0x%08X:0x%04X on"
 		  " local port 0x%04X. jiffies = %lu.\n",
 		  nesqp->hwqp.qp_id,
@@ -3679,7 +3679,7 @@ static void cm_event_reset(struct nes_cm_event *event)
 
 	cm_id->add_ref(cm_id);
 	ret = cm_id->event_handler(cm_id, &cm_event);
-	atomic_inc(&cm_closes);
+	atomic_inc_unchecked(&cm_closes);
 	cm_event.event = IW_CM_EVENT_CLOSE;
 	cm_event.status = 0;
 	cm_event.provider_data = cm_id->provider_data;
@@ -3715,7 +3715,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event)
 		return;
 	cm_id = cm_node->cm_id;
 
-	atomic_inc(&cm_connect_reqs);
+	atomic_inc_unchecked(&cm_connect_reqs);
 	nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
 		  cm_node, cm_id, jiffies);
 
@@ -3755,7 +3755,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event)
 		return;
 	cm_id = cm_node->cm_id;
 
-	atomic_inc(&cm_connect_reqs);
+	atomic_inc_unchecked(&cm_connect_reqs);
 	nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
 		  cm_node, cm_id, jiffies);
 
diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c
index 4166452..fc952c3 100644
--- a/drivers/infiniband/hw/nes/nes_mgt.c
+++ b/drivers/infiniband/hw/nes/nes_mgt.c
@@ -40,8 +40,8 @@
 #include "nes.h"
 #include "nes_mgt.h"
 
-atomic_t pau_qps_created;
-atomic_t pau_qps_destroyed;
+atomic_unchecked_t pau_qps_created;
+atomic_unchecked_t pau_qps_destroyed;
 
 static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic)
 {
@@ -621,7 +621,7 @@ void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp)
 {
 	struct sk_buff *skb;
 	unsigned long flags;
-	atomic_inc(&pau_qps_destroyed);
+	atomic_inc_unchecked(&pau_qps_destroyed);
 
 	/* Free packets that have not yet been forwarded */
 	/* Lock is acquired by skb_dequeue when removing the skb */
@@ -810,7 +810,7 @@ static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *
 					cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]);
 				skb_queue_head_init(&nesqp->pau_list);
 				spin_lock_init(&nesqp->pau_lock);
-				atomic_inc(&pau_qps_created);
+				atomic_inc_unchecked(&pau_qps_created);
 				nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp);
 			}
 
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index 85cf4d1..05d8e71 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -1273,39 +1273,39 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
 	target_stat_values[++index] = mh_detected;
 	target_stat_values[++index] = mh_pauses_sent;
 	target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
-	target_stat_values[++index] = atomic_read(&cm_connects);
-	target_stat_values[++index] = atomic_read(&cm_accepts);
-	target_stat_values[++index] = atomic_read(&cm_disconnects);
-	target_stat_values[++index] = atomic_read(&cm_connecteds);
-	target_stat_values[++index] = atomic_read(&cm_connect_reqs);
-	target_stat_values[++index] = atomic_read(&cm_rejects);
-	target_stat_values[++index] = atomic_read(&mod_qp_timouts);
-	target_stat_values[++index] = atomic_read(&qps_created);
-	target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
-	target_stat_values[++index] = atomic_read(&qps_destroyed);
-	target_stat_values[++index] = atomic_read(&cm_closes);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_connects);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_accepts);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_disconnects);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_connecteds);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_connect_reqs);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_rejects);
+	target_stat_values[++index] = atomic_read_unchecked(&mod_qp_timouts);
+	target_stat_values[++index] = atomic_read_unchecked(&qps_created);
+	target_stat_values[++index] = atomic_read_unchecked(&sw_qps_destroyed);
+	target_stat_values[++index] = atomic_read_unchecked(&qps_destroyed);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_closes);
 	target_stat_values[++index] = cm_packets_sent;
 	target_stat_values[++index] = cm_packets_bounced;
 	target_stat_values[++index] = cm_packets_created;
 	target_stat_values[++index] = cm_packets_received;
 	target_stat_values[++index] = cm_packets_dropped;
 	target_stat_values[++index] = cm_packets_retrans;
-	target_stat_values[++index] = atomic_read(&cm_listens_created);
-	target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_listens_created);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_listens_destroyed);
 	target_stat_values[++index] = cm_backlog_drops;
-	target_stat_values[++index] = atomic_read(&cm_loopbacks);
-	target_stat_values[++index] = atomic_read(&cm_nodes_created);
-	target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
-	target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
-	target_stat_values[++index] = atomic_read(&cm_resets_recvd);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_loopbacks);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_created);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_destroyed);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_accel_dropped_pkts);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_resets_recvd);
 	target_stat_values[++index] = nesadapter->free_4kpbl;
 	target_stat_values[++index] = nesadapter->free_256pbl;
 	target_stat_values[++index] = int_mod_timer_init;
 	target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated;
 	target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed;
 	target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc;
-	target_stat_values[++index] = atomic_read(&pau_qps_created);
-	target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
+	target_stat_values[++index] = atomic_read_unchecked(&pau_qps_created);
+	target_stat_values[++index] = atomic_read_unchecked(&pau_qps_destroyed);
 }
 
 /**
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index 8f67fe2..8960859 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -46,9 +46,9 @@
 
 #include <rdma/ib_umem.h>
 
-atomic_t mod_qp_timouts;
-atomic_t qps_created;
-atomic_t sw_qps_destroyed;
+atomic_unchecked_t mod_qp_timouts;
+atomic_unchecked_t qps_created;
+atomic_unchecked_t sw_qps_destroyed;
 
 static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev);
 
@@ -1134,7 +1134,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
 	if (init_attr->create_flags)
 		return ERR_PTR(-EINVAL);
 
-	atomic_inc(&qps_created);
+	atomic_inc_unchecked(&qps_created);
 	switch (init_attr->qp_type) {
 		case IB_QPT_RC:
 			if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) {
@@ -1465,7 +1465,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp)
 	struct iw_cm_event cm_event;
 	int ret = 0;
 
-	atomic_inc(&sw_qps_destroyed);
+	atomic_inc_unchecked(&sw_qps_destroyed);
 	nesqp->destroyed = 1;
 
 	/* Blow away the connection if it exists. */
diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h
index 4d11575..3e890e5 100644
--- a/drivers/infiniband/hw/qib/qib.h
+++ b/drivers/infiniband/hw/qib/qib.h
@@ -51,6 +51,7 @@
 #include <linux/completion.h>
 #include <linux/kref.h>
 #include <linux/sched.h>
+#include <linux/slab.h>
 
 #include "qib_common.h"
 #include "qib_verbs.h"
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index da739d9..da1c7f4 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -487,14 +487,14 @@ EXPORT_SYMBOL(gameport_set_phys);
  */
 static void gameport_init_port(struct gameport *gameport)
 {
-	static atomic_t gameport_no = ATOMIC_INIT(0);
+	static atomic_unchecked_t gameport_no = ATOMIC_INIT(0);
 
 	__module_get(THIS_MODULE);
 
 	mutex_init(&gameport->drv_mutex);
 	device_initialize(&gameport->dev);
 	dev_set_name(&gameport->dev, "gameport%lu",
-			(unsigned long)atomic_inc_return(&gameport_no) - 1);
+			(unsigned long)atomic_inc_return_unchecked(&gameport_no) - 1);
 	gameport->dev.bus = &gameport_bus;
 	gameport->dev.release = gameport_release_port;
 	if (gameport->parent)
diff --git a/drivers/input/input.c b/drivers/input/input.c
index c044699..174d71a 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -2019,7 +2019,7 @@ static void devm_input_device_unregister(struct device *dev, void *res)
  */
 int input_register_device(struct input_dev *dev)
 {
-	static atomic_t input_no = ATOMIC_INIT(0);
+	static atomic_unchecked_t input_no = ATOMIC_INIT(0);
 	struct input_devres *devres = NULL;
 	struct input_handler *handler;
 	unsigned int packet_size;
@@ -2074,7 +2074,7 @@ int input_register_device(struct input_dev *dev)
 		dev->setkeycode = input_default_setkeycode;
 
 	dev_set_name(&dev->dev, "input%ld",
-		     (unsigned long) atomic_inc_return(&input_no) - 1);
+		     (unsigned long) atomic_inc_return_unchecked(&input_no) - 1);
 
 	error = device_add(&dev->dev);
 	if (error)
diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
index 04c69af..5f92d00 100644
--- a/drivers/input/joystick/sidewinder.c
+++ b/drivers/input/joystick/sidewinder.c
@@ -30,6 +30,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/sched.h>
 #include <linux/init.h>
 #include <linux/input.h>
 #include <linux/gameport.h>
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index d6cbfe9..6225402 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -735,7 +735,7 @@ static void xpad_led_set(struct led_classdev *led_cdev,
 
 static int xpad_led_probe(struct usb_xpad *xpad)
 {
-	static atomic_t led_seq	= ATOMIC_INIT(0);
+	static atomic_unchecked_t led_seq	= ATOMIC_INIT(0);
 	long led_no;
 	struct xpad_led *led;
 	struct led_classdev *led_cdev;
@@ -748,7 +748,7 @@ static int xpad_led_probe(struct usb_xpad *xpad)
 	if (!led)
 		return -ENOMEM;
 
-	led_no = (long)atomic_inc_return(&led_seq) - 1;
+	led_no = (long)atomic_inc_return_unchecked(&led_seq) - 1;
 
 	snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
 	led->xpad = xpad;
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index 2f0b39d..7370f13 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -116,7 +116,7 @@ struct psmouse_attribute {
 	ssize_t (*set)(struct psmouse *psmouse, void *data,
 			const char *buf, size_t count);
 	bool protect;
-};
+} __do_const;
 #define to_psmouse_attr(a)	container_of((a), struct psmouse_attribute, dattr)
 
 ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 4c842c3..590b0bf 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -738,7 +738,7 @@ static ssize_t mousedev_read(struct file *file, char __user *buffer,
 
 	spin_unlock_irq(&client->packet_lock);
 
-	if (copy_to_user(buffer, data, count))
+	if (count > sizeof(data) || copy_to_user(buffer, data, count))
 		return -EFAULT;
 
 	return count;
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 25fc597..558bf3b3 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -496,7 +496,7 @@ static void serio_release_port(struct device *dev)
  */
 static void serio_init_port(struct serio *serio)
 {
-	static atomic_t serio_no = ATOMIC_INIT(0);
+	static atomic_unchecked_t serio_no = ATOMIC_INIT(0);
 
 	__module_get(THIS_MODULE);
 
@@ -507,7 +507,7 @@ static void serio_init_port(struct serio *serio)
 	mutex_init(&serio->drv_mutex);
 	device_initialize(&serio->dev);
 	dev_set_name(&serio->dev, "serio%ld",
-			(long)atomic_inc_return(&serio_no) - 1);
+			(long)atomic_inc_return_unchecked(&serio_no) - 1);
 	serio->dev.bus = &serio_bus;
 	serio->dev.release = serio_release_port;
 	serio->dev.groups = serio_device_attr_groups;
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index b972d43..8943713 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -554,7 +554,7 @@ static struct notifier_block iommu_bus_nb = {
 static void iommu_bus_init(struct bus_type *bus, struct iommu_ops *ops)
 {
 	bus_register_notifier(bus, &iommu_bus_nb);
-	bus_for_each_dev(bus, NULL, ops, add_iommu_group);
+	bus_for_each_dev(bus, NULL, (void *)ops, add_iommu_group);
 }
 
 /**
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 7c11ff3..5b2d7a7 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -369,10 +369,12 @@ static void ir_print_prefix(struct irq_data *data, struct seq_file *p)
 
 void irq_remap_modify_chip_defaults(struct irq_chip *chip)
 {
-	chip->irq_print_chip = ir_print_prefix;
-	chip->irq_ack = ir_ack_apic_edge;
-	chip->irq_eoi = ir_ack_apic_level;
-	chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
+	pax_open_kernel();
+	*(void **)&chip->irq_print_chip = ir_print_prefix;
+	*(void **)&chip->irq_ack = ir_ack_apic_edge;
+	*(void **)&chip->irq_eoi = ir_ack_apic_level;
+	*(void **)&chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
+	pax_close_kernel();
 }
 
 bool setup_remapped_irq(int irq, struct irq_cfg *cfg, struct irq_chip *chip)
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index fc6aebf..762c5f5 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -83,7 +83,7 @@ static u8 gic_cpu_map[NR_GIC_CPU_IF] __read_mostly;
  * Supported arch specific GIC irq extension.
  * Default make them NULL.
  */
-struct irq_chip gic_arch_extn = {
+irq_chip_no_const gic_arch_extn = {
 	.irq_eoi	= NULL,
 	.irq_mask	= NULL,
 	.irq_unmask	= NULL,
@@ -332,7 +332,7 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
 	chained_irq_exit(chip, desc);
 }
 
-static struct irq_chip gic_chip = {
+static irq_chip_no_const gic_chip __read_only = {
 	.name			= "GIC",
 	.irq_mask		= gic_mask_irq,
 	.irq_unmask		= gic_unmask_irq,
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 89562a8..218999b 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -81,8 +81,8 @@ struct capiminor {
 
 	struct capi20_appl	*ap;
 	u32			ncci;
-	atomic_t		datahandle;
-	atomic_t		msgid;
+	atomic_unchecked_t	datahandle;
+	atomic_unchecked_t	msgid;
 
 	struct tty_port port;
 	int                ttyinstop;
@@ -391,7 +391,7 @@ gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb)
 		capimsg_setu16(s, 2, mp->ap->applid);
 		capimsg_setu8 (s, 4, CAPI_DATA_B3);
 		capimsg_setu8 (s, 5, CAPI_RESP);
-		capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid));
+		capimsg_setu16(s, 6, atomic_inc_return_unchecked(&mp->msgid));
 		capimsg_setu32(s, 8, mp->ncci);
 		capimsg_setu16(s, 12, datahandle);
 	}
@@ -512,14 +512,14 @@ static void handle_minor_send(struct capiminor *mp)
 		mp->outbytes -= len;
 		spin_unlock_bh(&mp->outlock);
 
-		datahandle = atomic_inc_return(&mp->datahandle);
+		datahandle = atomic_inc_return_unchecked(&mp->datahandle);
 		skb_push(skb, CAPI_DATA_B3_REQ_LEN);
 		memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
 		capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
 		capimsg_setu16(skb->data, 2, mp->ap->applid);
 		capimsg_setu8 (skb->data, 4, CAPI_DATA_B3);
 		capimsg_setu8 (skb->data, 5, CAPI_REQ);
-		capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid));
+		capimsg_setu16(skb->data, 6, atomic_inc_return_unchecked(&mp->msgid));
 		capimsg_setu32(skb->data, 8, mp->ncci);	/* NCCI */
 		capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */
 		capimsg_setu16(skb->data, 16, len);	/* Data length */
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index e2b5396..c5486dc 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -130,9 +130,9 @@ static int if_open(struct tty_struct *tty, struct file *filp)
 	}
 	tty->driver_data = cs;
 
-	++cs->port.count;
+	atomic_inc(&cs->port.count);
 
-	if (cs->port.count == 1) {
+	if (atomic_read(&cs->port.count) == 1) {
 		tty_port_tty_set(&cs->port, tty);
 		cs->port.low_latency = 1;
 	}
@@ -156,9 +156,9 @@ static void if_close(struct tty_struct *tty, struct file *filp)
 
 	if (!cs->connected)
 		gig_dbg(DEBUG_IF, "not connected");	/* nothing to do */
-	else if (!cs->port.count)
+	else if (!atomic_read(&cs->port.count))
 		dev_warn(cs->dev, "%s: device not opened\n", __func__);
-	else if (!--cs->port.count)
+	else if (!atomic_dec_return(&cs->port.count))
 		tty_port_tty_set(&cs->port, NULL);
 
 	mutex_unlock(&cs->mutex);
diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c
index 821f7ac..28d4030 100644
--- a/drivers/isdn/hardware/avm/b1.c
+++ b/drivers/isdn/hardware/avm/b1.c
@@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capiloaddatapart *t4file)
 	}
 	if (left) {
 		if (t4file->user) {
-			if (copy_from_user(buf, dp, left))
+			if (left > sizeof buf || copy_from_user(buf, dp, left))
 				return -EFAULT;
 		} else {
 			memcpy(buf, dp, left);
@@ -224,7 +224,7 @@ int b1_load_config(avmcard *card, capiloaddatapart *config)
 	}
 	if (left) {
 		if (config->user) {
-			if (copy_from_user(buf, dp, left))
+			if (left > sizeof buf || copy_from_user(buf, dp, left))
 				return -EFAULT;
 		} else {
 			memcpy(buf, dp, left);
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index ebaebdf..acd4405 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1511,9 +1511,9 @@ isdn_tty_open(struct tty_struct *tty, struct file *filp)
 
 #ifdef ISDN_DEBUG_MODEM_OPEN
 	printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
-	       port->count);
+	       atomic_read(&port->count));
 #endif
-	port->count++;
+	atomic_inc(&port->count);
 	port->tty = tty;
 	/*
 	 * Start up serial port
@@ -1557,7 +1557,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
 #endif
 		return;
 	}
-	if ((tty->count == 1) && (port->count != 1)) {
+	if ((tty->count == 1) && (atomic_read(&port->count) != 1)) {
 		/*
 		 * Uh, oh.  tty->count is 1, which means that the tty
 		 * structure will be freed.  Info->count should always
@@ -1566,15 +1566,15 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
 		 * serial port won't be shutdown.
 		 */
 		printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, "
-		       "info->count is %d\n", port->count);
-		port->count = 1;
+		       "info->count is %d\n", atomic_read(&port->count));
+		atomic_set(&port->count, 1);
 	}
-	if (--port->count < 0) {
+	if (atomic_dec_return(&port->count) < 0) {
 		printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n",
-		       info->line, port->count);
-		port->count = 0;
+		       info->line, atomic_read(&port->count));
+		atomic_set(&port->count, 0);
 	}
-	if (port->count) {
+	if (atomic_read(&port->count)) {
 #ifdef ISDN_DEBUG_MODEM_OPEN
 		printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n");
 #endif
@@ -1628,7 +1628,7 @@ isdn_tty_hangup(struct tty_struct *tty)
 	if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup"))
 		return;
 	isdn_tty_shutdown(info);
-	port->count = 0;
+	atomic_set(&port->count, 0);
 	port->flags &= ~ASYNC_NORMAL_ACTIVE;
 	port->tty = NULL;
 	wake_up_interruptible(&port->open_wait);
@@ -1973,7 +1973,7 @@ isdn_tty_find_icall(int di, int ch, setup_parm *setup)
 	for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
 		modem_info *info = &dev->mdm.info[i];
 
-		if (info->port.count == 0)
+		if (atomic_read(&info->port.count) == 0)
 			continue;
 		if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) &&  /* SI1 is matching */
 		    (info->emu.mdmreg[REG_SI2] == si2))	{         /* SI2 is matching */
diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
index e74df7c..03a03ba 100644
--- a/drivers/isdn/icn/icn.c
+++ b/drivers/isdn/icn/icn.c
@@ -1045,7 +1045,7 @@ icn_writecmd(const u_char *buf, int len, int user, icn_card *card)
 		if (count > len)
 			count = len;
 		if (user) {
-			if (copy_from_user(msg, buf, count))
+			if (count > sizeof msg || copy_from_user(msg, buf, count))
 				return -EFAULT;
 		} else
 			memcpy(msg, buf, count);
diff --git a/drivers/leds/leds-clevo-mail.c b/drivers/leds/leds-clevo-mail.c
index 6a8405d..0bd1c7e 100644
--- a/drivers/leds/leds-clevo-mail.c
+++ b/drivers/leds/leds-clevo-mail.c
@@ -40,7 +40,7 @@ static int __init clevo_mail_led_dmi_callback(const struct dmi_system_id *id)
  * detected as working, but in reality it is not) as low as
  * possible.
  */
-static struct dmi_system_id __initdata clevo_mail_led_dmi_table[] = {
+static const struct dmi_system_id __initconst clevo_mail_led_dmi_table[] = {
 	{
 		.callback = clevo_mail_led_dmi_callback,
 		.ident = "Clevo D410J",
diff --git a/drivers/leds/leds-ss4200.c b/drivers/leds/leds-ss4200.c
index 64e204e..c6bf189 100644
--- a/drivers/leds/leds-ss4200.c
+++ b/drivers/leds/leds-ss4200.c
@@ -91,7 +91,7 @@ MODULE_PARM_DESC(nodetect, "Skip DMI-based hardware detection");
  * detected as working, but in reality it is not) as low as
  * possible.
  */
-static struct dmi_system_id __initdata nas_led_whitelist[] = {
+static const struct dmi_system_id __initconst nas_led_whitelist[] = {
 	{
 		.callback = ss4200_led_dmi_callback,
 		.ident = "Intel SS4200-E",
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index a5ebc00..982886f 100644
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -92,9 +92,17 @@ static __init int map_switcher(void)
 	 * it's worked so far.  The end address needs +1 because __get_vm_area
 	 * allocates an extra guard page, so we need space for that.
 	 */
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
+				     VM_ALLOC | VM_KERNEXEC, SWITCHER_ADDR, SWITCHER_ADDR
+				     + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
+#else
 	switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
 				     VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR
 				     + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
+#endif
+
 	if (!switcher_vma) {
 		err = -ENOMEM;
 		printk("lguest: could not map switcher pages high\n");
@@ -119,7 +127,7 @@ static __init int map_switcher(void)
 	 * Now the Switcher is mapped at the right address, we can't fail!
 	 * Copy in the compiled-in Switcher code (from x86/switcher_32.S).
 	 */
-	memcpy(switcher_vma->addr, start_switcher_text,
+	memcpy(switcher_vma->addr, ktla_ktva(start_switcher_text),
 	       end_switcher_text - start_switcher_text);
 
 	printk(KERN_INFO "lguest: mapped switcher at %p\n",
diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index 3b62be16..e33134a 100644
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -532,7 +532,7 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
 /*:*/
 
 #ifdef CONFIG_X86_PAE
-static void release_pmd(pmd_t *spmd)
+static void __intentional_overflow(-1) release_pmd(pmd_t *spmd)
 {
 	/* If the entry's not present, there's nothing to release. */
 	if (pmd_flags(*spmd) & _PAGE_PRESENT) {
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index 4af12e1..0e89afe 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -59,7 +59,7 @@ static struct {
 /* Offset from where switcher.S was compiled to where we've copied it */
 static unsigned long switcher_offset(void)
 {
-	return SWITCHER_ADDR - (unsigned long)start_switcher_text;
+	return SWITCHER_ADDR - (unsigned long)ktla_ktva(start_switcher_text);
 }
 
 /* This cpu's struct lguest_pages. */
@@ -100,7 +100,13 @@ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages)
 	 * These copies are pretty cheap, so we do them unconditionally: */
 	/* Save the current Host top-level page directory.
 	 */
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	pages->state.host_cr3 = read_cr3();
+#else
 	pages->state.host_cr3 = __pa(current->mm->pgd);
+#endif
+
 	/*
 	 * Set up the Guest's page tables to see this CPU's pages (and no
 	 * other CPU's pages).
@@ -476,7 +482,7 @@ void __init lguest_arch_host_init(void)
 	 * compiled-in switcher code and the high-mapped copy we just made.
 	 */
 	for (i = 0; i < IDT_ENTRIES; i++)
-		default_idt_entries[i] += switcher_offset();
+		default_idt_entries[i] = ktla_ktva(default_idt_entries[i]) + switcher_offset();
 
 	/*
 	 * Set up the Switcher's per-cpu areas.
@@ -559,7 +565,7 @@ void __init lguest_arch_host_init(void)
 	 * it will be undisturbed when we switch.  To change %cs and jump we
 	 * need this structure to feed to Intel's "lcall" instruction.
 	 */
-	lguest_entry.offset = (long)switch_to_guest + switcher_offset();
+	lguest_entry.offset = (long)ktla_ktva(switch_to_guest) + switcher_offset();
 	lguest_entry.segment = LGUEST_CS;
 
 	/*
diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S
index 40634b0..4f5855e 100644
--- a/drivers/lguest/x86/switcher_32.S
+++ b/drivers/lguest/x86/switcher_32.S
@@ -87,6 +87,7 @@
 #include <asm/page.h>
 #include <asm/segment.h>
 #include <asm/lguest.h>
+#include <asm/processor-flags.h>
 
 // We mark the start of the code to copy
 // It's placed in .text tho it's never run here
@@ -149,6 +150,13 @@ ENTRY(switch_to_guest)
 	// Changes type when we load it: damn Intel!
 	// For after we switch over our page tables
 	// That entry will be read-only: we'd crash.
+
+#ifdef CONFIG_PAX_KERNEXEC
+	mov	%cr0, %edx
+	xor	$X86_CR0_WP, %edx
+	mov	%edx, %cr0
+#endif
+
 	movl	$(GDT_ENTRY_TSS*8), %edx
 	ltr	%dx
 
@@ -157,9 +165,15 @@ ENTRY(switch_to_guest)
 	// Let's clear it again for our return.
 	// The GDT descriptor of the Host
 	// Points to the table after two "size" bytes
-	movl	(LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx
+	movl	(LGUEST_PAGES_host_gdt_desc+2)(%eax), %eax
 	// Clear "used" from type field (byte 5, bit 2)
-	andb	$0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx)
+	andb	$0xFD, (GDT_ENTRY_TSS*8 + 5)(%eax)
+
+#ifdef CONFIG_PAX_KERNEXEC
+	mov	%cr0, %eax
+	xor	$X86_CR0_WP, %eax
+	mov	%eax, %cr0
+#endif
 
 	// Once our page table's switched, the Guest is live!
 	// The Host fades as we run this final step.
@@ -295,13 +309,12 @@ deliver_to_host:
 	// I consulted gcc, and it gave
 	// These instructions, which I gladly credit:
 	leal	(%edx,%ebx,8), %eax
-	movzwl	(%eax),%edx
-	movl	4(%eax), %eax
-	xorw	%ax, %ax
-	orl	%eax, %edx
+	movl	4(%eax), %edx
+	movw	(%eax), %dx
 	// Now the address of the handler's in %edx
 	// We call it now: its "iret" drops us home.
-	jmp	*%edx
+	ljmp	$__KERNEL_CS, $1f
+1:	jmp	*%edx
 
 // Every interrupt can come to us here
 // But we must truly tell each apart.
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 4fd9d6a..834fa03 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1779,7 +1779,7 @@ void bitmap_status(struct seq_file *seq, struct bitmap *bitmap)
 		   chunk_kb ? "KB" : "B");
 	if (bitmap->storage.file) {
 		seq_printf(seq, ", file: ");
-		seq_path(seq, &bitmap->storage.file->f_path, " \t\n");
+		seq_path(seq, &bitmap->storage.file->f_path, " \t\n\\");
 	}
 
 	seq_printf(seq, "\n");
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index aa04f02..2a1309e 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1694,7 +1694,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param)
 	    cmd == DM_LIST_VERSIONS_CMD)
 		return 0;
 
-	if ((cmd == DM_DEV_CREATE_CMD)) {
+	if (cmd == DM_DEV_CREATE_CMD) {
 		if (!*param->name) {
 			DMWARN("name not supplied when creating device");
 			return -EINVAL;
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index d053098..05cc375 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -40,7 +40,7 @@ enum dm_raid1_error {
 
 struct mirror {
 	struct mirror_set *ms;
-	atomic_t error_count;
+	atomic_unchecked_t error_count;
 	unsigned long error_type;
 	struct dm_dev *dev;
 	sector_t offset;
@@ -186,7 +186,7 @@ static struct mirror *get_valid_mirror(struct mirror_set *ms)
 	struct mirror *m;
 
 	for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++)
-		if (!atomic_read(&m->error_count))
+		if (!atomic_read_unchecked(&m->error_count))
 			return m;
 
 	return NULL;
@@ -218,7 +218,7 @@ static void fail_mirror(struct mirror *m, enum dm_raid1_error error_type)
 	 * simple way to tell if a device has encountered
 	 * errors.
 	 */
-	atomic_inc(&m->error_count);
+	atomic_inc_unchecked(&m->error_count);
 
 	if (test_and_set_bit(error_type, &m->error_type))
 		return;
@@ -409,7 +409,7 @@ static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector)
 	struct mirror *m = get_default_mirror(ms);
 
 	do {
-		if (likely(!atomic_read(&m->error_count)))
+		if (likely(!atomic_read_unchecked(&m->error_count)))
 			return m;
 
 		if (m-- == ms->mirror)
@@ -423,7 +423,7 @@ static int default_ok(struct mirror *m)
 {
 	struct mirror *default_mirror = get_default_mirror(m->ms);
 
-	return !atomic_read(&default_mirror->error_count);
+	return !atomic_read_unchecked(&default_mirror->error_count);
 }
 
 static int mirror_available(struct mirror_set *ms, struct bio *bio)
@@ -560,7 +560,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
 		 */
 		if (likely(region_in_sync(ms, region, 1)))
 			m = choose_mirror(ms, bio->bi_sector);
-		else if (m && atomic_read(&m->error_count))
+		else if (m && atomic_read_unchecked(&m->error_count))
 			m = NULL;
 
 		if (likely(m))
@@ -927,7 +927,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
 	}
 
 	ms->mirror[mirror].ms = ms;
-	atomic_set(&(ms->mirror[mirror].error_count), 0);
+	atomic_set_unchecked(&(ms->mirror[mirror].error_count), 0);
 	ms->mirror[mirror].error_type = 0;
 	ms->mirror[mirror].offset = offset;
 
@@ -1340,7 +1340,7 @@ static void mirror_resume(struct dm_target *ti)
  */
 static char device_status_char(struct mirror *m)
 {
-	if (!atomic_read(&(m->error_count)))
+	if (!atomic_read_unchecked(&(m->error_count)))
 		return 'A';
 
 	return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' :
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index 7b8b2b9..9c7d145 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -20,7 +20,7 @@ struct stripe {
 	struct dm_dev *dev;
 	sector_t physical_start;
 
-	atomic_t error_count;
+	atomic_unchecked_t error_count;
 };
 
 struct stripe_c {
@@ -185,7 +185,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 			kfree(sc);
 			return r;
 		}
-		atomic_set(&(sc->stripe[i].error_count), 0);
+		atomic_set_unchecked(&(sc->stripe[i].error_count), 0);
 	}
 
 	ti->private = sc;
@@ -326,7 +326,7 @@ static void stripe_status(struct dm_target *ti, status_type_t type,
 		DMEMIT("%d ", sc->stripes);
 		for (i = 0; i < sc->stripes; i++)  {
 			DMEMIT("%s ", sc->stripe[i].dev->name);
-			buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ?
+			buffer[i] = atomic_read_unchecked(&(sc->stripe[i].error_count)) ?
 				'D' : 'A';
 		}
 		buffer[i] = '\0';
@@ -371,8 +371,8 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio, int error)
 	 */
 	for (i = 0; i < sc->stripes; i++)
 		if (!strcmp(sc->stripe[i].dev->name, major_minor)) {
-			atomic_inc(&(sc->stripe[i].error_count));
-			if (atomic_read(&(sc->stripe[i].error_count)) <
+			atomic_inc_unchecked(&(sc->stripe[i].error_count));
+			if (atomic_read_unchecked(&(sc->stripe[i].error_count)) <
 			    DM_IO_ERROR_THRESHOLD)
 				schedule_work(&sc->trigger_event);
 		}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 1ff252a..ee384c1 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -389,7 +389,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
 	if (!dev_size)
 		return 0;
 
-	if ((start >= dev_size) || (start + len > dev_size)) {
+	if ((start >= dev_size) || (len > dev_size - start)) {
 		DMWARN("%s: %s too small for target: "
 		       "start=%llu, len=%llu, dev_size=%llu",
 		       dm_device_name(ti->table->md), bdevname(bdev, b),
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 00cee02..b89a29d 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -397,7 +397,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
 {
 	pmd->info.tm = pmd->tm;
 	pmd->info.levels = 2;
-	pmd->info.value_type.context = pmd->data_sm;
+	pmd->info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
 	pmd->info.value_type.size = sizeof(__le64);
 	pmd->info.value_type.inc = data_block_inc;
 	pmd->info.value_type.dec = data_block_dec;
@@ -416,7 +416,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
 
 	pmd->bl_info.tm = pmd->tm;
 	pmd->bl_info.levels = 1;
-	pmd->bl_info.value_type.context = pmd->data_sm;
+	pmd->bl_info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
 	pmd->bl_info.value_type.size = sizeof(__le64);
 	pmd->bl_info.value_type.inc = data_block_inc;
 	pmd->bl_info.value_type.dec = data_block_dec;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 9a0bdad..4df9543 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -169,9 +169,9 @@ struct mapped_device {
 	/*
 	 * Event handling.
 	 */
-	atomic_t event_nr;
+	atomic_unchecked_t event_nr;
 	wait_queue_head_t eventq;
-	atomic_t uevent_seq;
+	atomic_unchecked_t uevent_seq;
 	struct list_head uevent_list;
 	spinlock_t uevent_lock; /* Protect access to uevent_list */
 
@@ -1879,8 +1879,8 @@ static struct mapped_device *alloc_dev(int minor)
 	rwlock_init(&md->map_lock);
 	atomic_set(&md->holders, 1);
 	atomic_set(&md->open_count, 0);
-	atomic_set(&md->event_nr, 0);
-	atomic_set(&md->uevent_seq, 0);
+	atomic_set_unchecked(&md->event_nr, 0);
+	atomic_set_unchecked(&md->uevent_seq, 0);
 	INIT_LIST_HEAD(&md->uevent_list);
 	spin_lock_init(&md->uevent_lock);
 
@@ -2028,7 +2028,7 @@ static void event_callback(void *context)
 
 	dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj);
 
-	atomic_inc(&md->event_nr);
+	atomic_inc_unchecked(&md->event_nr);
 	wake_up(&md->eventq);
 }
 
@@ -2685,18 +2685,18 @@ int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action,
 
 uint32_t dm_next_uevent_seq(struct mapped_device *md)
 {
-	return atomic_add_return(1, &md->uevent_seq);
+	return atomic_add_return_unchecked(1, &md->uevent_seq);
 }
 
 uint32_t dm_get_event_nr(struct mapped_device *md)
 {
-	return atomic_read(&md->event_nr);
+	return atomic_read_unchecked(&md->event_nr);
 }
 
 int dm_wait_event(struct mapped_device *md, int event_nr)
 {
 	return wait_event_interruptible(md->eventq,
-			(event_nr != atomic_read(&md->event_nr)));
+			(event_nr != atomic_read_unchecked(&md->event_nr)));
 }
 
 void dm_uevent_add(struct mapped_device *md, struct list_head *elist)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index a4a93b9..4747b63 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -240,10 +240,10 @@ EXPORT_SYMBOL_GPL(md_trim_bio);
  *  start build, activate spare
  */
 static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters);
-static atomic_t md_event_count;
+static atomic_unchecked_t md_event_count;
 void md_new_event(struct mddev *mddev)
 {
-	atomic_inc(&md_event_count);
+	atomic_inc_unchecked(&md_event_count);
 	wake_up(&md_event_waiters);
 }
 EXPORT_SYMBOL_GPL(md_new_event);
@@ -253,7 +253,7 @@ EXPORT_SYMBOL_GPL(md_new_event);
  */
 static void md_new_event_inintr(struct mddev *mddev)
 {
-	atomic_inc(&md_event_count);
+	atomic_inc_unchecked(&md_event_count);
 	wake_up(&md_event_waiters);
 }
 
@@ -1507,7 +1507,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
 	if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_RESHAPE_ACTIVE) &&
 	    (le32_to_cpu(sb->feature_map) & MD_FEATURE_NEW_OFFSET))
 		rdev->new_data_offset += (s32)le32_to_cpu(sb->new_offset);
-	atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
+	atomic_set_unchecked(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
 
 	rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256;
 	bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
@@ -1751,7 +1751,7 @@ static void super_1_sync(struct mddev *mddev, struct md_rdev *rdev)
 	else
 		sb->resync_offset = cpu_to_le64(0);
 
-	sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors));
+	sb->cnt_corrected_read = cpu_to_le32(atomic_read_unchecked(&rdev->corrected_errors));
 
 	sb->raid_disks = cpu_to_le32(mddev->raid_disks);
 	sb->size = cpu_to_le64(mddev->dev_sectors);
@@ -2751,7 +2751,7 @@ __ATTR(state, S_IRUGO|S_IWUSR, state_show, state_store);
 static ssize_t
 errors_show(struct md_rdev *rdev, char *page)
 {
-	return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors));
+	return sprintf(page, "%d\n", atomic_read_unchecked(&rdev->corrected_errors));
 }
 
 static ssize_t
@@ -2760,7 +2760,7 @@ errors_store(struct md_rdev *rdev, const char *buf, size_t len)
 	char *e;
 	unsigned long n = simple_strtoul(buf, &e, 10);
 	if (*buf && (*e == 0 || *e == '\n')) {
-		atomic_set(&rdev->corrected_errors, n);
+		atomic_set_unchecked(&rdev->corrected_errors, n);
 		return len;
 	}
 	return -EINVAL;
@@ -3210,8 +3210,8 @@ int md_rdev_init(struct md_rdev *rdev)
 	rdev->sb_loaded = 0;
 	rdev->bb_page = NULL;
 	atomic_set(&rdev->nr_pending, 0);
-	atomic_set(&rdev->read_errors, 0);
-	atomic_set(&rdev->corrected_errors, 0);
+	atomic_set_unchecked(&rdev->read_errors, 0);
+	atomic_set_unchecked(&rdev->corrected_errors, 0);
 
 	INIT_LIST_HEAD(&rdev->same_set);
 	init_waitqueue_head(&rdev->blocked_wait);
@@ -6994,7 +6994,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
 
 		spin_unlock(&pers_lock);
 		seq_printf(seq, "\n");
-		seq->poll_event = atomic_read(&md_event_count);
+		seq->poll_event = atomic_read_unchecked(&md_event_count);
 		return 0;
 	}
 	if (v == (void*)2) {
@@ -7097,7 +7097,7 @@ static int md_seq_open(struct inode *inode, struct file *file)
 		return error;
 
 	seq = file->private_data;
-	seq->poll_event = atomic_read(&md_event_count);
+	seq->poll_event = atomic_read_unchecked(&md_event_count);
 	return error;
 }
 
@@ -7111,7 +7111,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
 	/* always allow read */
 	mask = POLLIN | POLLRDNORM;
 
-	if (seq->poll_event != atomic_read(&md_event_count))
+	if (seq->poll_event != atomic_read_unchecked(&md_event_count))
 		mask |= POLLERR | POLLPRI;
 	return mask;
 }
@@ -7155,7 +7155,7 @@ static int is_mddev_idle(struct mddev *mddev, int init)
 		struct gendisk *disk = rdev->bdev->bd_contains->bd_disk;
 		curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
 			      (int)part_stat_read(&disk->part0, sectors[1]) -
-			      atomic_read(&disk->sync_io);
+			      atomic_read_unchecked(&disk->sync_io);
 		/* sync IO will cause sync_io to increase before the disk_stats
 		 * as sync_io is counted when a request starts, and
 		 * disk_stats is counted when it completes.
diff --git a/drivers/md/md.h b/drivers/md/md.h
index d90fb1a..4174a2b 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -94,13 +94,13 @@ struct md_rdev {
 					 * only maintained for arrays that
 					 * support hot removal
 					 */
-	atomic_t	read_errors;	/* number of consecutive read errors that
+	atomic_unchecked_t	read_errors;	/* number of consecutive read errors that
 					 * we have tried to ignore.
 					 */
 	struct timespec last_read_error;	/* monotonic time since our
 						 * last read error
 						 */
-	atomic_t	corrected_errors; /* number of corrected read errors,
+	atomic_unchecked_t	corrected_errors; /* number of corrected read errors,
 					   * for reporting to userspace and storing
 					   * in superblock.
 					   */
@@ -434,7 +434,7 @@ static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
 
 static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors)
 {
-        atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
+	atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
 }
 
 struct md_personality
diff --git a/drivers/md/persistent-data/dm-space-map.h b/drivers/md/persistent-data/dm-space-map.h
index 1cbfc6b..56e1dbb 100644
--- a/drivers/md/persistent-data/dm-space-map.h
+++ b/drivers/md/persistent-data/dm-space-map.h
@@ -60,6 +60,7 @@ struct dm_space_map {
 	int (*root_size)(struct dm_space_map *sm, size_t *result);
 	int (*copy_root)(struct dm_space_map *sm, void *copy_to_here_le, size_t len);
 };
+typedef struct dm_space_map __no_const dm_space_map_no_const;
 
 /*----------------------------------------------------------------*/
 
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 6af167f..40c25a1 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1826,7 +1826,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
 			if (r1_sync_page_io(rdev, sect, s,
 					    bio->bi_io_vec[idx].bv_page,
 					    READ) != 0)
-				atomic_add(s, &rdev->corrected_errors);
+				atomic_add_unchecked(s, &rdev->corrected_errors);
 		}
 		sectors -= s;
 		sect += s;
@@ -2048,7 +2048,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
 			    test_bit(In_sync, &rdev->flags)) {
 				if (r1_sync_page_io(rdev, sect, s,
 						    conf->tmppage, READ)) {
-					atomic_add(s, &rdev->corrected_errors);
+					atomic_add_unchecked(s, &rdev->corrected_errors);
 					printk(KERN_INFO
 					       "md/raid1:%s: read error corrected "
 					       "(%d sectors at %llu on %s)\n",
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 46c14e5..4db5966 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1932,7 +1932,7 @@ static void end_sync_read(struct bio *bio, int error)
 		/* The write handler will notice the lack of
 		 * R10BIO_Uptodate and record any errors etc
 		 */
-		atomic_add(r10_bio->sectors,
+		atomic_add_unchecked(r10_bio->sectors,
 			   &conf->mirrors[d].rdev->corrected_errors);
 
 	/* for reconstruct, we always reschedule after a read.
@@ -2281,7 +2281,7 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
 {
 	struct timespec cur_time_mon;
 	unsigned long hours_since_last;
-	unsigned int read_errors = atomic_read(&rdev->read_errors);
+	unsigned int read_errors = atomic_read_unchecked(&rdev->read_errors);
 
 	ktime_get_ts(&cur_time_mon);
 
@@ -2303,9 +2303,9 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
 	 * overflowing the shift of read_errors by hours_since_last.
 	 */
 	if (hours_since_last >= 8 * sizeof(read_errors))
-		atomic_set(&rdev->read_errors, 0);
+		atomic_set_unchecked(&rdev->read_errors, 0);
 	else
-		atomic_set(&rdev->read_errors, read_errors >> hours_since_last);
+		atomic_set_unchecked(&rdev->read_errors, read_errors >> hours_since_last);
 }
 
 static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector,
@@ -2359,8 +2359,8 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
 		return;
 
 	check_decay_read_errors(mddev, rdev);
-	atomic_inc(&rdev->read_errors);
-	if (atomic_read(&rdev->read_errors) > max_read_errors) {
+	atomic_inc_unchecked(&rdev->read_errors);
+	if (atomic_read_unchecked(&rdev->read_errors) > max_read_errors) {
 		char b[BDEVNAME_SIZE];
 		bdevname(rdev->bdev, b);
 
@@ -2368,7 +2368,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
 		       "md/raid10:%s: %s: Raid device exceeded "
 		       "read_error threshold [cur %d:max %d]\n",
 		       mdname(mddev), b,
-		       atomic_read(&rdev->read_errors), max_read_errors);
+		       atomic_read_unchecked(&rdev->read_errors), max_read_errors);
 		printk(KERN_NOTICE
 		       "md/raid10:%s: %s: Failing raid device\n",
 		       mdname(mddev), b);
@@ -2523,7 +2523,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
 					       sect +
 					       choose_data_offset(r10_bio, rdev)),
 				       bdevname(rdev->bdev, b));
-				atomic_add(s, &rdev->corrected_errors);
+				atomic_add_unchecked(s, &rdev->corrected_errors);
 			}
 
 			rdev_dec_pending(rdev, mddev);
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index f4e87bf..0d4ad3f 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1763,21 +1763,21 @@ static void raid5_end_read_request(struct bio * bi, int error)
 				mdname(conf->mddev), STRIPE_SECTORS,
 				(unsigned long long)s,
 				bdevname(rdev->bdev, b));
-			atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
+			atomic_add_unchecked(STRIPE_SECTORS, &rdev->corrected_errors);
 			clear_bit(R5_ReadError, &sh->dev[i].flags);
 			clear_bit(R5_ReWrite, &sh->dev[i].flags);
 		} else if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
 			clear_bit(R5_ReadNoMerge, &sh->dev[i].flags);
 
-		if (atomic_read(&rdev->read_errors))
-			atomic_set(&rdev->read_errors, 0);
+		if (atomic_read_unchecked(&rdev->read_errors))
+			atomic_set_unchecked(&rdev->read_errors, 0);
 	} else {
 		const char *bdn = bdevname(rdev->bdev, b);
 		int retry = 0;
 		int set_bad = 0;
 
 		clear_bit(R5_UPTODATE, &sh->dev[i].flags);
-		atomic_inc(&rdev->read_errors);
+		atomic_inc_unchecked(&rdev->read_errors);
 		if (test_bit(R5_ReadRepl, &sh->dev[i].flags))
 			printk_ratelimited(
 				KERN_WARNING
@@ -1805,7 +1805,7 @@ static void raid5_end_read_request(struct bio * bi, int error)
 				mdname(conf->mddev),
 				(unsigned long long)s,
 				bdn);
-		} else if (atomic_read(&rdev->read_errors)
+		} else if (atomic_read_unchecked(&rdev->read_errors)
 			 > conf->max_nr_stripes)
 			printk(KERN_WARNING
 			       "md/raid:%s: Too many read errors, failing device %s.\n",
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 401ef64..836e563 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -192,7 +192,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
 			const struct dvb_device *template, void *priv, int type)
 {
 	struct dvb_device *dvbdev;
-	struct file_operations *dvbdevfops;
+	file_operations_no_const *dvbdevfops;
 	struct device *clsdev;
 	int minor;
 	int id;
diff --git a/drivers/media/dvb-frontends/dib3000.h b/drivers/media/dvb-frontends/dib3000.h
index 9b6c3bb..baeb5c7 100644
--- a/drivers/media/dvb-frontends/dib3000.h
+++ b/drivers/media/dvb-frontends/dib3000.h
@@ -39,7 +39,7 @@ struct dib_fe_xfer_ops
 	int (*fifo_ctrl)(struct dvb_frontend *fe, int onoff);
 	int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff);
 	int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl);
-};
+} __no_const;
 
 #if IS_ENABLED(CONFIG_DVB_DIB3000MB)
 extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index bc78354..42c9459 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -50,9 +50,9 @@ MODULE_VERSION(CX88_VERSION);
 
 /* ------------------------------------------------------------------ */
 
-static unsigned int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
-static unsigned int vbi_nr[]   = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
-static unsigned int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+static int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+static int vbi_nr[]   = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+static int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
 
 module_param_array(video_nr, int, NULL, 0444);
 module_param_array(vbi_nr,   int, NULL, 0444);
diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
index 96c4a17..1305a79 100644
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -63,7 +63,6 @@ enum omap_vout_channels {
 	OMAP_VIDEO2,
 };
 
-static struct videobuf_queue_ops video_vbq_ops;
 /* Variables configurable through module params*/
 static u32 video1_numbuffers = 3;
 static u32 video2_numbuffers = 3;
@@ -1012,6 +1011,12 @@ static int omap_vout_open(struct file *file)
 {
 	struct videobuf_queue *q;
 	struct omap_vout_device *vout = NULL;
+	static struct videobuf_queue_ops video_vbq_ops = {
+		.buf_setup = omap_vout_buffer_setup,
+		.buf_prepare = omap_vout_buffer_prepare,
+		.buf_release = omap_vout_buffer_release,
+		.buf_queue = omap_vout_buffer_queue,
+	};
 
 	vout = video_drvdata(file);
 	v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
@@ -1029,10 +1034,6 @@ static int omap_vout_open(struct file *file)
 	vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
 
 	q = &vout->vbq;
-	video_vbq_ops.buf_setup = omap_vout_buffer_setup;
-	video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
-	video_vbq_ops.buf_release = omap_vout_buffer_release;
-	video_vbq_ops.buf_queue = omap_vout_buffer_queue;
 	spin_lock_init(&vout->vbq_lock);
 
 	videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
diff --git a/drivers/media/platform/s5p-tv/mixer.h b/drivers/media/platform/s5p-tv/mixer.h
index 04e6490..2df65bf 100644
--- a/drivers/media/platform/s5p-tv/mixer.h
+++ b/drivers/media/platform/s5p-tv/mixer.h
@@ -156,7 +156,7 @@ struct mxr_layer {
 	/** layer index (unique identifier) */
 	int idx;
 	/** callbacks for layer methods */
-	struct mxr_layer_ops ops;
+	struct mxr_layer_ops *ops;
 	/** format array */
 	const struct mxr_format **fmt_array;
 	/** size of format array */
diff --git a/drivers/media/platform/s5p-tv/mixer_grp_layer.c b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
index b93a21f..2535195 100644
--- a/drivers/media/platform/s5p-tv/mixer_grp_layer.c
+++ b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
@@ -235,7 +235,7 @@ struct mxr_layer *mxr_graph_layer_create(struct mxr_device *mdev, int idx)
 {
 	struct mxr_layer *layer;
 	int ret;
-	struct mxr_layer_ops ops = {
+	static struct mxr_layer_ops ops = {
 		.release = mxr_graph_layer_release,
 		.buffer_set = mxr_graph_buffer_set,
 		.stream_set = mxr_graph_stream_set,
diff --git a/drivers/media/platform/s5p-tv/mixer_reg.c b/drivers/media/platform/s5p-tv/mixer_reg.c
index b713403..53cb5ad 100644
--- a/drivers/media/platform/s5p-tv/mixer_reg.c
+++ b/drivers/media/platform/s5p-tv/mixer_reg.c
@@ -276,7 +276,7 @@ static void mxr_irq_layer_handle(struct mxr_layer *layer)
 		layer->update_buf = next;
 	}
 
-	layer->ops.buffer_set(layer, layer->update_buf);
+	layer->ops->buffer_set(layer, layer->update_buf);
 
 	if (done && done != layer->shadow_buf)
 		vb2_buffer_done(&done->vb, VB2_BUF_STATE_DONE);
diff --git a/drivers/media/platform/s5p-tv/mixer_video.c b/drivers/media/platform/s5p-tv/mixer_video.c
index 82142a2..6de47e8 100644
--- a/drivers/media/platform/s5p-tv/mixer_video.c
+++ b/drivers/media/platform/s5p-tv/mixer_video.c
@@ -209,7 +209,7 @@ static void mxr_layer_default_geo(struct mxr_layer *layer)
 	layer->geo.src.height = layer->geo.src.full_height;
 
 	mxr_geometry_dump(mdev, &layer->geo);
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
+	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
 	mxr_geometry_dump(mdev, &layer->geo);
 }
 
@@ -227,7 +227,7 @@ static void mxr_layer_update_output(struct mxr_layer *layer)
 	layer->geo.dst.full_width = mbus_fmt.width;
 	layer->geo.dst.full_height = mbus_fmt.height;
 	layer->geo.dst.field = mbus_fmt.field;
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
+	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
 
 	mxr_geometry_dump(mdev, &layer->geo);
 }
@@ -333,7 +333,7 @@ static int mxr_s_fmt(struct file *file, void *priv,
 	/* set source size to highest accepted value */
 	geo->src.full_width = max(geo->dst.full_width, pix->width);
 	geo->src.full_height = max(geo->dst.full_height, pix->height);
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
+	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
 	mxr_geometry_dump(mdev, &layer->geo);
 	/* set cropping to total visible screen */
 	geo->src.width = pix->width;
@@ -341,12 +341,12 @@ static int mxr_s_fmt(struct file *file, void *priv,
 	geo->src.x_offset = 0;
 	geo->src.y_offset = 0;
 	/* assure consistency of geometry */
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
+	layer->ops->fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
 	mxr_geometry_dump(mdev, &layer->geo);
 	/* set full size to lowest possible value */
 	geo->src.full_width = 0;
 	geo->src.full_height = 0;
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
+	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
 	mxr_geometry_dump(mdev, &layer->geo);
 
 	/* returning results */
@@ -473,7 +473,7 @@ static int mxr_s_selection(struct file *file, void *fh,
 		target->width = s->r.width;
 		target->height = s->r.height;
 
-		layer->ops.fix_geometry(layer, stage, s->flags);
+		layer->ops->fix_geometry(layer, stage, s->flags);
 
 		/* retrieve update selection rectangle */
 		res.left = target->x_offset;
@@ -938,13 +938,13 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count)
 	mxr_output_get(mdev);
 
 	mxr_layer_update_output(layer);
-	layer->ops.format_set(layer);
+	layer->ops->format_set(layer);
 	/* enabling layer in hardware */
 	spin_lock_irqsave(&layer->enq_slock, flags);
 	layer->state = MXR_LAYER_STREAMING;
 	spin_unlock_irqrestore(&layer->enq_slock, flags);
 
-	layer->ops.stream_set(layer, MXR_ENABLE);
+	layer->ops->stream_set(layer, MXR_ENABLE);
 	mxr_streamer_get(mdev);
 
 	return 0;
@@ -1014,7 +1014,7 @@ static int stop_streaming(struct vb2_queue *vq)
 	spin_unlock_irqrestore(&layer->enq_slock, flags);
 
 	/* disabling layer in hardware */
-	layer->ops.stream_set(layer, MXR_DISABLE);
+	layer->ops->stream_set(layer, MXR_DISABLE);
 	/* remove one streamer */
 	mxr_streamer_put(mdev);
 	/* allow changes in output configuration */
@@ -1053,8 +1053,8 @@ void mxr_base_layer_unregister(struct mxr_layer *layer)
 
 void mxr_layer_release(struct mxr_layer *layer)
 {
-	if (layer->ops.release)
-		layer->ops.release(layer);
+	if (layer->ops->release)
+		layer->ops->release(layer);
 }
 
 void mxr_base_layer_release(struct mxr_layer *layer)
@@ -1080,7 +1080,7 @@ struct mxr_layer *mxr_base_layer_create(struct mxr_device *mdev,
 
 	layer->mdev = mdev;
 	layer->idx = idx;
-	layer->ops = *ops;
+	layer->ops = ops;
 
 	spin_lock_init(&layer->enq_slock);
 	INIT_LIST_HEAD(&layer->enq_list);
diff --git a/drivers/media/platform/s5p-tv/mixer_vp_layer.c b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
index 3d13a63..da31bf1 100644
--- a/drivers/media/platform/s5p-tv/mixer_vp_layer.c
+++ b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
@@ -206,7 +206,7 @@ struct mxr_layer *mxr_vp_layer_create(struct mxr_device *mdev, int idx)
 {
 	struct mxr_layer *layer;
 	int ret;
-	struct mxr_layer_ops ops = {
+	static struct mxr_layer_ops ops = {
 		.release = mxr_vp_layer_release,
 		.buffer_set = mxr_vp_buffer_set,
 		.stream_set = mxr_vp_stream_set,
diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
index 643d80a..56bb96b 100644
--- a/drivers/media/radio/radio-cadet.c
+++ b/drivers/media/radio/radio-cadet.c
@@ -302,6 +302,8 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
 	unsigned char readbuf[RDS_BUFFER];
 	int i = 0;
 
+	if (count > RDS_BUFFER)
+		return -EFAULT;
 	mutex_lock(&dev->lock);
 	if (dev->rdsstat == 0)
 		cadet_start_rds(dev);
@@ -317,7 +319,7 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
 	while (i < count && dev->rdsin != dev->rdsout)
 		readbuf[i++] = dev->rdsbuf[dev->rdsout++];
 
-	if (i && copy_to_user(data, readbuf, i))
+	if (i > sizeof(readbuf) || copy_to_user(data, readbuf, i))
 		i = -EFAULT;
 unlock:
 	mutex_unlock(&dev->lock);
diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c
index 3940bb0..fb3952a 100644
--- a/drivers/media/usb/dvb-usb/cxusb.c
+++ b/drivers/media/usb/dvb-usb/cxusb.c
@@ -1068,7 +1068,7 @@ static struct dib0070_config dib7070p_dib0070_config = {
 
 struct dib0700_adapter_state {
 	int (*set_param_save) (struct dvb_frontend *);
-};
+} __no_const;
 
 static int dib7070_set_param_override(struct dvb_frontend *fe)
 {
diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c
index 9578a67..31aa652 100644
--- a/drivers/media/usb/dvb-usb/dw2102.c
+++ b/drivers/media/usb/dvb-usb/dw2102.c
@@ -115,7 +115,7 @@ struct su3000_state {
 
 struct s6x0_state {
 	int (*old_set_voltage)(struct dvb_frontend *f, fe_sec_voltage_t v);
-};
+} __no_const;
 
 /* debug */
 static int dvb_usb_dw2102_debug;
diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
index 7157af3..139e91a 100644
--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -326,7 +326,7 @@ struct v4l2_buffer32 {
 	__u32			reserved;
 };
 
-static int get_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
+static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
 				enum v4l2_memory memory)
 {
 	void __user *up_pln;
@@ -355,7 +355,7 @@ static int get_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
 	return 0;
 }
 
-static int put_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
+static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
 				enum v4l2_memory memory)
 {
 	if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
@@ -772,7 +772,7 @@ static int put_v4l2_subdev_edid32(struct v4l2_subdev_edid *kp, struct v4l2_subde
 		put_user(kp->start_block, &up->start_block) ||
 		put_user(kp->blocks, &up->blocks) ||
 		put_user(tmp, &up->edid) ||
-		copy_to_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
+		copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
 			return -EFAULT;
 	return 0;
 }
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index aa6e7c7..cb5de87 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -236,7 +236,7 @@ static void v4l_print_format(const void *arg, bool write_only)
 	const struct v4l2_vbi_format *vbi;
 	const struct v4l2_sliced_vbi_format *sliced;
 	const struct v4l2_window *win;
-	const struct v4l2_clip *clip;
+	const struct v4l2_clip __user *pclip;
 	unsigned i;
 
 	pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
@@ -284,12 +284,16 @@ static void v4l_print_format(const void *arg, bool write_only)
 			win->w.left, win->w.top,
 			prt_names(win->field, v4l2_field_names),
 			win->chromakey, win->bitmap, win->global_alpha);
-		clip = win->clips;
+		pclip = win->clips;
 		for (i = 0; i < win->clipcount; i++) {
+			struct v4l2_clip clip;
+
+			if (copy_from_user(&clip, pclip, sizeof clip))
+				break;
 			printk(KERN_DEBUG "clip %u: wxh=%dx%d, x,y=%d,%d\n",
-					i, clip->c.width, clip->c.height,
-					clip->c.left, clip->c.top);
-			clip = clip->next;
+					i, clip.c.width, clip.c.height,
+					clip.c.left, clip.c.top);
+			pclip = clip.next;
 		}
 		break;
 	case V4L2_BUF_TYPE_VBI_CAPTURE:
@@ -1923,7 +1927,8 @@ struct v4l2_ioctl_info {
 				struct file *file, void *fh, void *p);
 	} u;
 	void (*debug)(const void *arg, bool write_only);
-};
+} __do_const;
+typedef struct v4l2_ioctl_info __no_const v4l2_ioctl_info_no_const;
 
 /* This control needs a priority check */
 #define INFO_FL_PRIO	(1 << 0)
@@ -2108,7 +2113,7 @@ static long __video_do_ioctl(struct file *file,
 	struct video_device *vfd = video_devdata(file);
 	const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
 	bool write_only = false;
-	struct v4l2_ioctl_info default_info;
+	v4l2_ioctl_info_no_const default_info;
 	const struct v4l2_ioctl_info *info;
 	void *fh = file->private_data;
 	struct v4l2_fh *vfh = NULL;
@@ -2193,7 +2198,7 @@ done:
 }
 
 static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
-			    void * __user *user_ptr, void ***kernel_ptr)
+			    void __user **user_ptr, void ***kernel_ptr)
 {
 	int ret = 0;
 
@@ -2209,7 +2214,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
 				ret = -EINVAL;
 				break;
 			}
-			*user_ptr = (void __user *)buf->m.planes;
+			*user_ptr = (void __force_user *)buf->m.planes;
 			*kernel_ptr = (void *)&buf->m.planes;
 			*array_size = sizeof(struct v4l2_plane) * buf->length;
 			ret = 1;
@@ -2244,7 +2249,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
 				ret = -EINVAL;
 				break;
 			}
-			*user_ptr = (void __user *)ctrls->controls;
+			*user_ptr = (void __force_user *)ctrls->controls;
 			*kernel_ptr = (void *)&ctrls->controls;
 			*array_size = sizeof(struct v4l2_ext_control)
 				    * ctrls->count;
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index fb69baa..3aeea2e 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -6755,8 +6755,13 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
 	seq_printf(m, "  MaxChainDepth = 0x%02x frames\n", ioc->facts.MaxChainDepth);
 	seq_printf(m, "  MinBlockSize = 0x%02x bytes\n", 4*ioc->facts.BlockSize);
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	seq_printf(m, "  RequestFrames @ 0x%p (Dma @ 0x%p)\n", NULL, NULL);
+#else
 	seq_printf(m, "  RequestFrames @ 0x%p (Dma @ 0x%p)\n",
 					(void *)ioc->req_frames, (void *)(ulong)ioc->req_frames_dma);
+#endif
+
 	/*
 	 *  Rounding UP to nearest 4-kB boundary here...
 	 */
@@ -6769,7 +6774,11 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
 					ioc->facts.GlobalCredits);
 
 	seq_printf(m, "  Frames   @ 0x%p (Dma @ 0x%p)\n",
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+					NULL, NULL);
+#else
 					(void *)ioc->alloc, (void *)(ulong)ioc->alloc_dma);
+#endif
 	sz = (ioc->reply_sz * ioc->reply_depth) + 128;
 	seq_printf(m, "    {CurRepSz=%d} x {CurRepDepth=%d} = %d bytes ^= 0x%x\n",
 					ioc->reply_sz, ioc->reply_depth, ioc->reply_sz*ioc->reply_depth, sz);
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index fa43c39..daeb158 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -446,6 +446,23 @@ mptsas_is_end_device(struct mptsas_devinfo * attached)
 		return 0;
 }
 
+static inline void
+mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
+{
+	if (phy_info->port_details) {
+		phy_info->port_details->rphy = rphy;
+		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
+		    ioc->name, rphy));
+	}
+
+	if (rphy) {
+		dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
+		    &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
+		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
+		    ioc->name, rphy, rphy->dev.release));
+	}
+}
+
 /* no mutex */
 static void
 mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details)
@@ -484,23 +501,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *phy_info)
 		return NULL;
 }
 
-static inline void
-mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
-{
-	if (phy_info->port_details) {
-		phy_info->port_details->rphy = rphy;
-		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
-		    ioc->name, rphy));
-	}
-
-	if (rphy) {
-		dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
-		    &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
-		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
-		    ioc->name, rphy, rphy->dev.release));
-	}
-}
-
 static inline struct sas_port *
 mptsas_get_port(struct mptsas_phyinfo *phy_info)
 {
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 164afa7..b6b2e74 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -1271,15 +1271,16 @@ mptscsih_info(struct Scsi_Host *SChost)
 
 	h = shost_priv(SChost);
 
-	if (h) {
-		if (h->info_kbuf == NULL)
-			if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
-				return h->info_kbuf;
-		h->info_kbuf[0] = '\0';
+	if (!h)
+		return NULL;
 
-		mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
-		h->info_kbuf[size-1] = '\0';
-	}
+	if (h->info_kbuf == NULL)
+		if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
+			return h->info_kbuf;
+	h->info_kbuf[0] = '\0';
+
+	mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
+	h->info_kbuf[size-1] = '\0';
 
 	return h->info_kbuf;
 }
diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c
index 8001aa6..b137580 100644
--- a/drivers/message/i2o/i2o_proc.c
+++ b/drivers/message/i2o/i2o_proc.c
@@ -255,12 +255,6 @@ static char *scsi_devices[] = {
 	"Array Controller Device"
 };
 
-static char *chtostr(char *tmp, u8 *chars, int n)
-{
-	tmp[0] = 0;
-	return strncat(tmp, (char *)chars, n);
-}
-
 static int i2o_report_query_status(struct seq_file *seq, int block_status,
 				   char *group)
 {
@@ -790,7 +784,6 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
 	} *result;
 
 	i2o_exec_execute_ddm_table ddm_table;
-	char tmp[28 + 1];
 
 	result = kmalloc(sizeof(*result), GFP_KERNEL);
 	if (!result)
@@ -825,8 +818,7 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
 
 		seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id);
 		seq_printf(seq, "%-#8x", ddm_table.module_id);
-		seq_printf(seq, "%-29s",
-			   chtostr(tmp, ddm_table.module_name_version, 28));
+		seq_printf(seq, "%-.28s", ddm_table.module_name_version);
 		seq_printf(seq, "%9d  ", ddm_table.data_size);
 		seq_printf(seq, "%8d", ddm_table.code_size);
 
@@ -893,7 +885,6 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
 
 	i2o_driver_result_table *result;
 	i2o_driver_store_table *dst;
-	char tmp[28 + 1];
 
 	result = kmalloc(sizeof(i2o_driver_result_table), GFP_KERNEL);
 	if (result == NULL)
@@ -928,9 +919,8 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
 
 		seq_printf(seq, "%-#7x", dst->i2o_vendor_id);
 		seq_printf(seq, "%-#8x", dst->module_id);
-		seq_printf(seq, "%-29s",
-			   chtostr(tmp, dst->module_name_version, 28));
-		seq_printf(seq, "%-9s", chtostr(tmp, dst->date, 8));
+		seq_printf(seq, "%-.28s", dst->module_name_version);
+		seq_printf(seq, "%-.8s", dst->date);
 		seq_printf(seq, "%8d ", dst->module_size);
 		seq_printf(seq, "%8d ", dst->mpb_size);
 		seq_printf(seq, "0x%04x", dst->module_flags);
@@ -1250,7 +1240,6 @@ static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
 	// == (allow) 512d bytes (max)
 	static u16 *work16 = (u16 *) work32;
 	int token;
-	char tmp[16 + 1];
 
 	token = i2o_parm_field_get(d, 0xF100, -1, &work32, sizeof(work32));
 
@@ -1262,14 +1251,10 @@ static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
 	seq_printf(seq, "Device Class  : %s\n", i2o_get_class_name(work16[0]));
 	seq_printf(seq, "Owner TID     : %0#5x\n", work16[2]);
 	seq_printf(seq, "Parent TID    : %0#5x\n", work16[3]);
-	seq_printf(seq, "Vendor info   : %s\n",
-		   chtostr(tmp, (u8 *) (work32 + 2), 16));
-	seq_printf(seq, "Product info  : %s\n",
-		   chtostr(tmp, (u8 *) (work32 + 6), 16));
-	seq_printf(seq, "Description   : %s\n",
-		   chtostr(tmp, (u8 *) (work32 + 10), 16));
-	seq_printf(seq, "Product rev.  : %s\n",
-		   chtostr(tmp, (u8 *) (work32 + 14), 8));
+	seq_printf(seq, "Vendor info   : %.16s\n", (u8 *) (work32 + 2));
+	seq_printf(seq, "Product info  : %.16s\n", (u8 *) (work32 + 6));
+	seq_printf(seq, "Description   : %.16s\n", (u8 *) (work32 + 10));
+	seq_printf(seq, "Product rev.  : %.8s\n", (u8 *) (work32 + 14));
 
 	seq_printf(seq, "Serial number : ");
 	print_serial_number(seq, (u8 *) (work32 + 16),
@@ -1306,8 +1291,6 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
 		u8 pad[256];	// allow up to 256 byte (max) serial number
 	} result;
 
-	char tmp[24 + 1];
-
 	token = i2o_parm_field_get(d, 0xF101, -1, &result, sizeof(result));
 
 	if (token < 0) {
@@ -1316,10 +1299,8 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
 	}
 
 	seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid);
-	seq_printf(seq, "Module name         : %s\n",
-		   chtostr(tmp, result.module_name, 24));
-	seq_printf(seq, "Module revision     : %s\n",
-		   chtostr(tmp, result.module_rev, 8));
+	seq_printf(seq, "Module name         : %.24s\n", result.module_name);
+	seq_printf(seq, "Module revision     : %.8s\n", result.module_rev);
 
 	seq_printf(seq, "Serial number       : ");
 	print_serial_number(seq, result.serial_number, sizeof(result) - 36);
@@ -1343,8 +1324,6 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
 		u8 instance_number[4];
 	} result;
 
-	char tmp[64 + 1];
-
 	token = i2o_parm_field_get(d, 0xF102, -1, &result, sizeof(result));
 
 	if (token < 0) {
@@ -1352,14 +1331,10 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
 		return 0;
 	}
 
-	seq_printf(seq, "Device name     : %s\n",
-		   chtostr(tmp, result.device_name, 64));
-	seq_printf(seq, "Service name    : %s\n",
-		   chtostr(tmp, result.service_name, 64));
-	seq_printf(seq, "Physical name   : %s\n",
-		   chtostr(tmp, result.physical_location, 64));
-	seq_printf(seq, "Instance number : %s\n",
-		   chtostr(tmp, result.instance_number, 4));
+	seq_printf(seq, "Device name     : %.64s\n", result.device_name);
+	seq_printf(seq, "Service name    : %.64s\n", result.service_name);
+	seq_printf(seq, "Physical name   : %.64s\n", result.physical_location);
+	seq_printf(seq, "Instance number : %.4s\n", result.instance_number);
 
 	return 0;
 }
diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c
index a8c08f3..155fe3d 100644
--- a/drivers/message/i2o/iop.c
+++ b/drivers/message/i2o/iop.c
@@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_controller * c, void *ptr)
 
 	spin_lock_irqsave(&c->context_list_lock, flags);
 
-	if (unlikely(atomic_inc_and_test(&c->context_list_counter)))
-		atomic_inc(&c->context_list_counter);
+	if (unlikely(atomic_inc_and_test_unchecked(&c->context_list_counter)))
+		atomic_inc_unchecked(&c->context_list_counter);
 
-	entry->context = atomic_read(&c->context_list_counter);
+	entry->context = atomic_read_unchecked(&c->context_list_counter);
 
 	list_add(&entry->list, &c->context_list);
 
@@ -1077,7 +1077,7 @@ struct i2o_controller *i2o_iop_alloc(void)
 
 #if BITS_PER_LONG == 64
 	spin_lock_init(&c->context_list_lock);
-	atomic_set(&c->context_list_counter, 0);
+	atomic_set_unchecked(&c->context_list_counter, 0);
 	INIT_LIST_HEAD(&c->context_list);
 #endif
 
diff --git a/drivers/mfd/janz-cmodio.c b/drivers/mfd/janz-cmodio.c
index 45ece11..8efa218 100644
--- a/drivers/mfd/janz-cmodio.c
+++ b/drivers/mfd/janz-cmodio.c
@@ -13,6 +13,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <linux/interrupt.h>
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
index a5f9888..1c0ed56 100644
--- a/drivers/mfd/twl4030-irq.c
+++ b/drivers/mfd/twl4030-irq.c
@@ -35,6 +35,7 @@
 #include <linux/of.h>
 #include <linux/irqdomain.h>
 #include <linux/i2c/twl.h>
+#include <asm/pgtable.h>
 
 #include "twl-core.h"
 
@@ -728,10 +729,12 @@ int twl4030_init_irq(struct device *dev, int irq_num)
 	 * Install an irq handler for each of the SIH modules;
 	 * clone dummy irq_chip since PIH can't *do* anything
 	 */
-	twl4030_irq_chip = dummy_irq_chip;
-	twl4030_irq_chip.name = "twl4030";
+	pax_open_kernel();
+	memcpy((void *)&twl4030_irq_chip, &dummy_irq_chip, sizeof twl4030_irq_chip);
+	*(const char **)&twl4030_irq_chip.name = "twl4030";
 
-	twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
+	*(void **)&twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
+	pax_close_kernel();
 
 	for (i = irq_base; i < irq_end; i++) {
 		irq_set_chip_and_handler(i, &twl4030_irq_chip,
diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
index 277a8db..0e0b754 100644
--- a/drivers/mfd/twl6030-irq.c
+++ b/drivers/mfd/twl6030-irq.c
@@ -387,10 +387,12 @@ int twl6030_init_irq(struct device *dev, int irq_num)
 	 * install an irq handler for each of the modules;
 	 * clone dummy irq_chip since PIH can't *do* anything
 	 */
-	twl6030_irq_chip = dummy_irq_chip;
-	twl6030_irq_chip.name = "twl6030";
-	twl6030_irq_chip.irq_set_type = NULL;
-	twl6030_irq_chip.irq_set_wake = twl6030_irq_set_wake;
+	pax_open_kernel();
+	memcpy((void *)&twl6030_irq_chip, &dummy_irq_chip, sizeof twl6030_irq_chip);
+	*(const char **)&twl6030_irq_chip.name = "twl6030";
+	*(void **)&twl6030_irq_chip.irq_set_type = NULL;
+	*(void **)&twl6030_irq_chip.irq_set_wake = twl6030_irq_set_wake;
+	pax_close_kernel();
 
 	for (i = irq_base; i < irq_end; i++) {
 		irq_set_chip_and_handler(i, &twl6030_irq_chip,
diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
index f32550a..e3e52a2 100644
--- a/drivers/misc/c2port/core.c
+++ b/drivers/misc/c2port/core.c
@@ -920,7 +920,9 @@ struct c2port_device *c2port_device_register(char *name,
 	mutex_init(&c2dev->mutex);
 
 	/* Create binary file */
-	c2port_bin_attrs.size = ops->blocks_num * ops->block_size;
+	pax_open_kernel();
+	*(size_t *)&c2port_bin_attrs.size = ops->blocks_num * ops->block_size;
+	pax_close_kernel();
 	ret = device_create_bin_file(c2dev->dev, &c2port_bin_attrs);
 	if (unlikely(ret))
 		goto error_device_create_bin_file;
diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index 36f5d52..32311c3 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -834,7 +834,7 @@ static void run_plant_and_detach_test(int is_early)
 	char before[BREAK_INSTR_SIZE];
 	char after[BREAK_INSTR_SIZE];
 
-	probe_kernel_read(before, (char *)kgdbts_break_test,
+	probe_kernel_read(before, ktla_ktva((char *)kgdbts_break_test),
 	  BREAK_INSTR_SIZE);
 	init_simple_test();
 	ts.tst = plant_and_detach_test;
@@ -842,7 +842,7 @@ static void run_plant_and_detach_test(int is_early)
 	/* Activate test with initial breakpoint */
 	if (!is_early)
 		kgdb_breakpoint();
-	probe_kernel_read(after, (char *)kgdbts_break_test,
+	probe_kernel_read(after, ktla_ktva((char *)kgdbts_break_test),
 	  BREAK_INSTR_SIZE);
 	if (memcmp(before, after, BREAK_INSTR_SIZE)) {
 		printk(KERN_CRIT "kgdbts: ERROR kgdb corrupted memory\n");
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
index 4a87e5c..76bdf5c 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d.c
@@ -498,7 +498,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *data)
 	 * the lid is closed. This leads to interrupts as soon as a little move
 	 * is done.
 	 */
-	atomic_inc(&lis3->count);
+	atomic_inc_unchecked(&lis3->count);
 
 	wake_up_interruptible(&lis3->misc_wait);
 	kill_fasync(&lis3->async_queue, SIGIO, POLL_IN);
@@ -584,7 +584,7 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
 	if (lis3->pm_dev)
 		pm_runtime_get_sync(lis3->pm_dev);
 
-	atomic_set(&lis3->count, 0);
+	atomic_set_unchecked(&lis3->count, 0);
 	return 0;
 }
 
@@ -617,7 +617,7 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
 	add_wait_queue(&lis3->misc_wait, &wait);
 	while (true) {
 		set_current_state(TASK_INTERRUPTIBLE);
-		data = atomic_xchg(&lis3->count, 0);
+		data = atomic_xchg_unchecked(&lis3->count, 0);
 		if (data)
 			break;
 
@@ -658,7 +658,7 @@ static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait)
 					      struct lis3lv02d, miscdev);
 
 	poll_wait(file, &lis3->misc_wait, wait);
-	if (atomic_read(&lis3->count))
+	if (atomic_read_unchecked(&lis3->count))
 		return POLLIN | POLLRDNORM;
 	return 0;
 }
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h
index c439c82..1f20f57 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.h
+++ b/drivers/misc/lis3lv02d/lis3lv02d.h
@@ -297,7 +297,7 @@ struct lis3lv02d {
 	struct input_polled_dev	*idev;     /* input device */
 	struct platform_device	*pdev;     /* platform device */
 	struct regulator_bulk_data regulators[2];
-	atomic_t		count;     /* interrupt count after last read */
+	atomic_unchecked_t	count;     /* interrupt count after last read */
 	union axis_conversion	ac;        /* hw -> logical axis */
 	int			mapped_btns[3];
 
diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
index 2f30bad..c4c13d0 100644
--- a/drivers/misc/sgi-gru/gruhandles.c
+++ b/drivers/misc/sgi-gru/gruhandles.c
@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op op, unsigned long clks)
 	unsigned long nsec;
 
 	nsec = CLKS2NSEC(clks);
-	atomic_long_inc(&mcs_op_statistics[op].count);
-	atomic_long_add(nsec, &mcs_op_statistics[op].total);
+	atomic_long_inc_unchecked(&mcs_op_statistics[op].count);
+	atomic_long_add_unchecked(nsec, &mcs_op_statistics[op].total);
 	if (mcs_op_statistics[op].max < nsec)
 		mcs_op_statistics[op].max = nsec;
 }
diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
index 950dbe9..eeef0f8 100644
--- a/drivers/misc/sgi-gru/gruprocfs.c
+++ b/drivers/misc/sgi-gru/gruprocfs.c
@@ -32,9 +32,9 @@
 
 #define printstat(s, f)		printstat_val(s, &gru_stats.f, #f)
 
-static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id)
+static void printstat_val(struct seq_file *s, atomic_long_unchecked_t *v, char *id)
 {
-	unsigned long val = atomic_long_read(v);
+	unsigned long val = atomic_long_read_unchecked(v);
 
 	seq_printf(s, "%16lu %s\n", val, id);
 }
@@ -134,8 +134,8 @@ static int mcs_statistics_show(struct seq_file *s, void *p)
 
 	seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks");
 	for (op = 0; op < mcsop_last; op++) {
-		count = atomic_long_read(&mcs_op_statistics[op].count);
-		total = atomic_long_read(&mcs_op_statistics[op].total);
+		count = atomic_long_read_unchecked(&mcs_op_statistics[op].count);
+		total = atomic_long_read_unchecked(&mcs_op_statistics[op].total);
 		max = mcs_op_statistics[op].max;
 		seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count,
 			   count ? total / count : 0, max);
diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
index 5c3ce24..4915ccb 100644
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -167,82 +167,82 @@ extern unsigned int gru_max_gids;
  * GRU statistics.
  */
 struct gru_stats_s {
-	atomic_long_t vdata_alloc;
-	atomic_long_t vdata_free;
-	atomic_long_t gts_alloc;
-	atomic_long_t gts_free;
-	atomic_long_t gms_alloc;
-	atomic_long_t gms_free;
-	atomic_long_t gts_double_allocate;
-	atomic_long_t assign_context;
-	atomic_long_t assign_context_failed;
-	atomic_long_t free_context;
-	atomic_long_t load_user_context;
-	atomic_long_t load_kernel_context;
-	atomic_long_t lock_kernel_context;
-	atomic_long_t unlock_kernel_context;
-	atomic_long_t steal_user_context;
-	atomic_long_t steal_kernel_context;
-	atomic_long_t steal_context_failed;
-	atomic_long_t nopfn;
-	atomic_long_t asid_new;
-	atomic_long_t asid_next;
-	atomic_long_t asid_wrap;
-	atomic_long_t asid_reuse;
-	atomic_long_t intr;
-	atomic_long_t intr_cbr;
-	atomic_long_t intr_tfh;
-	atomic_long_t intr_spurious;
-	atomic_long_t intr_mm_lock_failed;
-	atomic_long_t call_os;
-	atomic_long_t call_os_wait_queue;
-	atomic_long_t user_flush_tlb;
-	atomic_long_t user_unload_context;
-	atomic_long_t user_exception;
-	atomic_long_t set_context_option;
-	atomic_long_t check_context_retarget_intr;
-	atomic_long_t check_context_unload;
-	atomic_long_t tlb_dropin;
-	atomic_long_t tlb_preload_page;
-	atomic_long_t tlb_dropin_fail_no_asid;
-	atomic_long_t tlb_dropin_fail_upm;
-	atomic_long_t tlb_dropin_fail_invalid;
-	atomic_long_t tlb_dropin_fail_range_active;
-	atomic_long_t tlb_dropin_fail_idle;
-	atomic_long_t tlb_dropin_fail_fmm;
-	atomic_long_t tlb_dropin_fail_no_exception;
-	atomic_long_t tfh_stale_on_fault;
-	atomic_long_t mmu_invalidate_range;
-	atomic_long_t mmu_invalidate_page;
-	atomic_long_t flush_tlb;
-	atomic_long_t flush_tlb_gru;
-	atomic_long_t flush_tlb_gru_tgh;
-	atomic_long_t flush_tlb_gru_zero_asid;
+	atomic_long_unchecked_t vdata_alloc;
+	atomic_long_unchecked_t vdata_free;
+	atomic_long_unchecked_t gts_alloc;
+	atomic_long_unchecked_t gts_free;
+	atomic_long_unchecked_t gms_alloc;
+	atomic_long_unchecked_t gms_free;
+	atomic_long_unchecked_t gts_double_allocate;
+	atomic_long_unchecked_t assign_context;
+	atomic_long_unchecked_t assign_context_failed;
+	atomic_long_unchecked_t free_context;
+	atomic_long_unchecked_t load_user_context;
+	atomic_long_unchecked_t load_kernel_context;
+	atomic_long_unchecked_t lock_kernel_context;
+	atomic_long_unchecked_t unlock_kernel_context;
+	atomic_long_unchecked_t steal_user_context;
+	atomic_long_unchecked_t steal_kernel_context;
+	atomic_long_unchecked_t steal_context_failed;
+	atomic_long_unchecked_t nopfn;
+	atomic_long_unchecked_t asid_new;
+	atomic_long_unchecked_t asid_next;
+	atomic_long_unchecked_t asid_wrap;
+	atomic_long_unchecked_t asid_reuse;
+	atomic_long_unchecked_t intr;
+	atomic_long_unchecked_t intr_cbr;
+	atomic_long_unchecked_t intr_tfh;
+	atomic_long_unchecked_t intr_spurious;
+	atomic_long_unchecked_t intr_mm_lock_failed;
+	atomic_long_unchecked_t call_os;
+	atomic_long_unchecked_t call_os_wait_queue;
+	atomic_long_unchecked_t user_flush_tlb;
+	atomic_long_unchecked_t user_unload_context;
+	atomic_long_unchecked_t user_exception;
+	atomic_long_unchecked_t set_context_option;
+	atomic_long_unchecked_t check_context_retarget_intr;
+	atomic_long_unchecked_t check_context_unload;
+	atomic_long_unchecked_t tlb_dropin;
+	atomic_long_unchecked_t tlb_preload_page;
+	atomic_long_unchecked_t tlb_dropin_fail_no_asid;
+	atomic_long_unchecked_t tlb_dropin_fail_upm;
+	atomic_long_unchecked_t tlb_dropin_fail_invalid;
+	atomic_long_unchecked_t tlb_dropin_fail_range_active;
+	atomic_long_unchecked_t tlb_dropin_fail_idle;
+	atomic_long_unchecked_t tlb_dropin_fail_fmm;
+	atomic_long_unchecked_t tlb_dropin_fail_no_exception;
+	atomic_long_unchecked_t tfh_stale_on_fault;
+	atomic_long_unchecked_t mmu_invalidate_range;
+	atomic_long_unchecked_t mmu_invalidate_page;
+	atomic_long_unchecked_t flush_tlb;
+	atomic_long_unchecked_t flush_tlb_gru;
+	atomic_long_unchecked_t flush_tlb_gru_tgh;
+	atomic_long_unchecked_t flush_tlb_gru_zero_asid;
 
-	atomic_long_t copy_gpa;
-	atomic_long_t read_gpa;
+	atomic_long_unchecked_t copy_gpa;
+	atomic_long_unchecked_t read_gpa;
 
-	atomic_long_t mesq_receive;
-	atomic_long_t mesq_receive_none;
-	atomic_long_t mesq_send;
-	atomic_long_t mesq_send_failed;
-	atomic_long_t mesq_noop;
-	atomic_long_t mesq_send_unexpected_error;
-	atomic_long_t mesq_send_lb_overflow;
-	atomic_long_t mesq_send_qlimit_reached;
-	atomic_long_t mesq_send_amo_nacked;
-	atomic_long_t mesq_send_put_nacked;
-	atomic_long_t mesq_page_overflow;
-	atomic_long_t mesq_qf_locked;
-	atomic_long_t mesq_qf_noop_not_full;
-	atomic_long_t mesq_qf_switch_head_failed;
-	atomic_long_t mesq_qf_unexpected_error;
-	atomic_long_t mesq_noop_unexpected_error;
-	atomic_long_t mesq_noop_lb_overflow;
-	atomic_long_t mesq_noop_qlimit_reached;
-	atomic_long_t mesq_noop_amo_nacked;
-	atomic_long_t mesq_noop_put_nacked;
-	atomic_long_t mesq_noop_page_overflow;
+	atomic_long_unchecked_t mesq_receive;
+	atomic_long_unchecked_t mesq_receive_none;
+	atomic_long_unchecked_t mesq_send;
+	atomic_long_unchecked_t mesq_send_failed;
+	atomic_long_unchecked_t mesq_noop;
+	atomic_long_unchecked_t mesq_send_unexpected_error;
+	atomic_long_unchecked_t mesq_send_lb_overflow;
+	atomic_long_unchecked_t mesq_send_qlimit_reached;
+	atomic_long_unchecked_t mesq_send_amo_nacked;
+	atomic_long_unchecked_t mesq_send_put_nacked;
+	atomic_long_unchecked_t mesq_page_overflow;
+	atomic_long_unchecked_t mesq_qf_locked;
+	atomic_long_unchecked_t mesq_qf_noop_not_full;
+	atomic_long_unchecked_t mesq_qf_switch_head_failed;
+	atomic_long_unchecked_t mesq_qf_unexpected_error;
+	atomic_long_unchecked_t mesq_noop_unexpected_error;
+	atomic_long_unchecked_t mesq_noop_lb_overflow;
+	atomic_long_unchecked_t mesq_noop_qlimit_reached;
+	atomic_long_unchecked_t mesq_noop_amo_nacked;
+	atomic_long_unchecked_t mesq_noop_put_nacked;
+	atomic_long_unchecked_t mesq_noop_page_overflow;
 
 };
 
@@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync,
 	tghop_invalidate, mcsop_last};
 
 struct mcs_op_statistic {
-	atomic_long_t	count;
-	atomic_long_t	total;
+	atomic_long_unchecked_t	count;
+	atomic_long_unchecked_t	total;
 	unsigned long	max;
 };
 
@@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last];
 
 #define STAT(id)	do {						\
 				if (gru_options & OPT_STATS)		\
-					atomic_long_inc(&gru_stats.id);	\
+					atomic_long_inc_unchecked(&gru_stats.id);	\
 			} while (0)
 
 #ifdef CONFIG_SGI_GRU_DEBUG
diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
index c862cd4..0d176fe 100644
--- a/drivers/misc/sgi-xp/xp.h
+++ b/drivers/misc/sgi-xp/xp.h
@@ -288,7 +288,7 @@ struct xpc_interface {
 					xpc_notify_func, void *);
 	void (*received) (short, int, void *);
 	enum xp_retval (*partid_to_nasids) (short, void *);
-};
+} __no_const;
 
 extern struct xpc_interface xpc_interface;
 
diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h
index b94d5f7..7f494c5 100644
--- a/drivers/misc/sgi-xp/xpc.h
+++ b/drivers/misc/sgi-xp/xpc.h
@@ -835,6 +835,7 @@ struct xpc_arch_operations {
 	void (*received_payload) (struct xpc_channel *, void *);
 	void (*notify_senders_of_disconnect) (struct xpc_channel *);
 };
+typedef struct xpc_arch_operations __no_const xpc_arch_operations_no_const;
 
 /* struct xpc_partition act_state values (for XPC HB) */
 
@@ -876,7 +877,7 @@ extern struct xpc_registration xpc_registrations[];
 /* found in xpc_main.c */
 extern struct device *xpc_part;
 extern struct device *xpc_chan;
-extern struct xpc_arch_operations xpc_arch_ops;
+extern xpc_arch_operations_no_const xpc_arch_ops;
 extern int xpc_disengage_timelimit;
 extern int xpc_disengage_timedout;
 extern int xpc_activate_IRQ_rcvd;
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index d971817..33bdca5 100644
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -166,7 +166,7 @@ static struct notifier_block xpc_die_notifier = {
 	.notifier_call = xpc_system_die,
 };
 
-struct xpc_arch_operations xpc_arch_ops;
+xpc_arch_operations_no_const xpc_arch_ops;
 
 /*
  * Timer function to enforce the timelimit on the partition disengage.
@@ -1210,7 +1210,7 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
 
 		if (((die_args->trapnr == X86_TRAP_MF) ||
 		     (die_args->trapnr == X86_TRAP_XF)) &&
-		    !user_mode_vm(die_args->regs))
+		    !user_mode(die_args->regs))
 			xpc_die_deactivate();
 
 		break;
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 49f04bc..65660c2 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -247,7 +247,7 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
 	void *data_buf;
 	int is_on_stack;
 
-	is_on_stack = object_is_on_stack(buf);
+	is_on_stack = object_starts_on_stack(buf);
 	if (is_on_stack) {
 		/*
 		 * dma onto stack is unsafe/nonportable, but callers to this
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 53b8fd9..615b462 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -205,5 +205,5 @@ struct dw_mci_drv_data {
 	int		(*parse_dt)(struct dw_mci *host);
 	int		(*setup_bus)(struct dw_mci *host,
 				struct device_node *slot_np, u8 bus_width);
-};
+} __do_const;
 #endif /* _DW_MMC_H_ */
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 7363efe..681558e 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -720,9 +720,11 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
 	 * we can use overriding functions instead of default.
 	 */
 	if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) {
-		sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
-		sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
-		sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
+		pax_open_kernel();
+		*(void **)&sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
+		*(void **)&sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
+		*(void **)&sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
+		pax_close_kernel();
 	}
 
 	/* It supports additional host capabilities if needed */
diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c
index a4eb8b5..8c0628f 100644
--- a/drivers/mtd/devices/doc2000.c
+++ b/drivers/mtd/devices/doc2000.c
@@ -753,7 +753,7 @@ static int doc_write(struct mtd_info *mtd, loff_t to, size_t len,
 
 		/* The ECC will not be calculated correctly if less than 512 is written */
 /* DBB-
-		if (len != 0x200 && eccbuf)
+		if (len != 0x200)
 			printk(KERN_WARNING
 			       "ECC needs a full sector write (adr: %lx size %lx)\n",
 			       (long) to, (long) len);
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 0c8bb6b..6f35deb 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/mtd/mtd.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 
 #include "denali.h"
 
diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
index 51b9d6a..52af9a7 100644
--- a/drivers/mtd/nftlmount.c
+++ b/drivers/mtd/nftlmount.c
@@ -24,6 +24,7 @@
 #include <asm/errno.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
+#include <linux/sched.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/nftl.h>
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index 8dd6ba5..419cc1d 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -56,7 +56,7 @@ ssize_t sm_attr_show(struct device *dev, struct device_attribute *attr,
 #define SM_CIS_VENDOR_OFFSET 0x59
 struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
 {
-	struct attribute_group *attr_group;
+	attribute_group_no_const *attr_group;
 	struct attribute **attributes;
 	struct sm_sysfs_attribute *vendor_attribute;
 
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index dbbea0e..3f4a0b1 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4822,7 +4822,7 @@ static unsigned int bond_get_num_tx_queues(void)
 	return tx_queues;
 }
 
-static struct rtnl_link_ops bond_link_ops __read_mostly = {
+static struct rtnl_link_ops bond_link_ops = {
 	.kind			= "bond",
 	.priv_size		= sizeof(struct bonding),
 	.setup			= bond_setup,
@@ -4947,8 +4947,8 @@ static void __exit bonding_exit(void)
 
 	bond_destroy_debugfs();
 
-	rtnl_link_unregister(&bond_link_ops);
 	unregister_pernet_subsys(&bond_net_ops);
+	rtnl_link_unregister(&bond_link_ops);
 
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	/*
diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
index e1d2643..7f4133b 100644
--- a/drivers/net/ethernet/8390/ax88796.c
+++ b/drivers/net/ethernet/8390/ax88796.c
@@ -872,9 +872,11 @@ static int ax_probe(struct platform_device *pdev)
 	if (ax->plat->reg_offsets)
 		ei_local->reg_offset = ax->plat->reg_offsets;
 	else {
+		resource_size_t _mem_size = mem_size;
+		do_div(_mem_size, 0x18);
 		ei_local->reg_offset = ax->reg_offsets;
 		for (ret = 0; ret < 0x18; ret++)
-			ax->reg_offsets[ret] = (mem_size / 0x18) * ret;
+			ax->reg_offsets[ret] = _mem_size * ret;
 	}
 
 	if (!request_mem_region(mem->start, mem_size, pdev->name)) {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index aee7671..3ca2651 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -1093,7 +1093,7 @@ static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp)
 static inline void bnx2x_init_bp_objs(struct bnx2x *bp)
 {
 	/* RX_MODE controlling object */
-	bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj);
+	bnx2x_init_rx_mode_obj(bp);
 
 	/* multicast configuration controlling object */
 	bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index 7306416..5fb7fb5 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -2381,15 +2381,14 @@ int bnx2x_config_rx_mode(struct bnx2x *bp,
 	return rc;
 }
 
-void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
-			    struct bnx2x_rx_mode_obj *o)
+void bnx2x_init_rx_mode_obj(struct bnx2x *bp)
 {
 	if (CHIP_IS_E1x(bp)) {
-		o->wait_comp      = bnx2x_empty_rx_mode_wait;
-		o->config_rx_mode = bnx2x_set_rx_mode_e1x;
+		bp->rx_mode_obj.wait_comp      = bnx2x_empty_rx_mode_wait;
+		bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e1x;
 	} else {
-		o->wait_comp      = bnx2x_wait_rx_mode_comp_e2;
-		o->config_rx_mode = bnx2x_set_rx_mode_e2;
+		bp->rx_mode_obj.wait_comp      = bnx2x_wait_rx_mode_comp_e2;
+		bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e2;
 	}
 }
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
index ff90760..08d8aed 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
@@ -1306,8 +1306,7 @@ int bnx2x_vlan_mac_move(struct bnx2x *bp,
 
 /********************* RX MODE ****************/
 
-void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
-			    struct bnx2x_rx_mode_obj *o);
+void bnx2x_init_rx_mode_obj(struct bnx2x *bp);
 
 /**
  * bnx2x_config_rx_mode - Send and RX_MODE ramrod according to the provided parameters.
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 8d7d4c2..95f7681 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -147,6 +147,7 @@
 #define  CHIPREV_ID_5750_A0		 0x4000
 #define  CHIPREV_ID_5750_A1		 0x4001
 #define  CHIPREV_ID_5750_A3		 0x4003
+#define  CHIPREV_ID_5750_C1		 0x4201
 #define  CHIPREV_ID_5750_C2		 0x4202
 #define  CHIPREV_ID_5752_A0_HW		 0x5000
 #define  CHIPREV_ID_5752_A0		 0x6000
diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
index 8cffcdf..aadf043 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h
+++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
@@ -87,7 +87,7 @@ typedef void (*arp_failure_handler_func)(struct t3cdev * dev,
  */
 struct l2t_skb_cb {
 	arp_failure_handler_func arp_failure_handler;
-};
+} __no_const;
 
 #define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb)
 
diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 4c83003..2a2a5b9 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -5388,7 +5388,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	for (i=0; i<ETH_ALEN; i++) {
 	    tmp.addr[i] = dev->dev_addr[i];
 	}
-	if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
+	if (ioc->len > sizeof tmp.addr || copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
 	break;
 
     case DE4X5_SET_HWADDR:           /* Set the hardware address */
@@ -5428,7 +5428,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	spin_lock_irqsave(&lp->lock, flags);
 	memcpy(&statbuf, &lp->pktStats, ioc->len);
 	spin_unlock_irqrestore(&lp->lock, flags);
-	if (copy_to_user(ioc->data, &statbuf, ioc->len))
+	if (ioc->len > sizeof statbuf || copy_to_user(ioc->data, &statbuf, ioc->len))
 		return -EFAULT;
 	break;
     }
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 2886c9b..db71673 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -455,7 +455,7 @@ static void accumulate_16bit_val(u32 *acc, u16 val)
 
 	if (wrapped)
 		newacc += 65536;
-	ACCESS_ONCE(*acc) = newacc;
+	ACCESS_ONCE_RW(*acc) = newacc;
 }
 
 void be_parse_stats(struct be_adapter *adapter)
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 7c361d1..57e3ff1 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -31,6 +31,8 @@
 #include <linux/netdevice.h>
 #include <linux/phy.h>
 #include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irqreturn.h>
 #include <net/ip.h>
 
 #include "ftgmac100.h"
diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
index b5ea8fb..bd25e9a 100644
--- a/drivers/net/ethernet/faraday/ftmac100.c
+++ b/drivers/net/ethernet/faraday/ftmac100.c
@@ -31,6 +31,8 @@
 #include <linux/module.h>
 #include <linux/netdevice.h>
 #include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irqreturn.h>
 
 #include "ftmac100.h"
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
index 331987d..3be1135 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
@@ -776,7 +776,7 @@ void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter)
 	}
 
 	/* update the base incval used to calculate frequency adjustment */
-	ACCESS_ONCE(adapter->base_incval) = incval;
+	ACCESS_ONCE_RW(adapter->base_incval) = incval;
 	smp_mb();
 
 	/* need lock to prevent incorrect read while modifying cyclecounter */
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
index fbe5363..266b4e3 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
@@ -3461,7 +3461,10 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
 	struct __vxge_hw_fifo *fifo;
 	struct vxge_hw_fifo_config *config;
 	u32 txdl_size, txdl_per_memblock;
-	struct vxge_hw_mempool_cbs fifo_mp_callback;
+	static struct vxge_hw_mempool_cbs fifo_mp_callback = {
+		.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc,
+	};
+
 	struct __vxge_hw_virtualpath *vpath;
 
 	if ((vp == NULL) || (attr == NULL)) {
@@ -3544,8 +3547,6 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
 		goto exit;
 	}
 
-	fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc;
-
 	fifo->mempool =
 		__vxge_hw_mempool_create(vpath->hldev,
 			fifo->config->memblock_size,
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index 5c033f2..7bbb0d8 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -1894,7 +1894,9 @@ int qlcnic_83xx_config_default_opmode(struct qlcnic_adapter *adapter)
 	op_mode = QLCRDX(ahw, QLC_83XX_DRV_OP_MODE);
 
 	if (op_mode == QLC_83XX_DEFAULT_OPMODE) {
-		adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
+		pax_open_kernel();
+		*(void **)&adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
+		pax_close_kernel();
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
 	} else {
 		return -EIO;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
index b0c3de9..fc5857e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
@@ -200,15 +200,21 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
 	if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 		ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
-		nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
+		pax_open_kernel();
+		*(void **)&nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
+		pax_close_kernel();
 	} else if (priv_level == QLCNIC_PRIV_FUNC) {
 		ahw->op_mode = QLCNIC_PRIV_FUNC;
 		ahw->idc.state_entry = qlcnic_83xx_idc_vnic_pf_entry;
-		nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
+		pax_open_kernel();
+		*(void **)&nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
+		pax_close_kernel();
 	} else if (priv_level == QLCNIC_MGMT_FUNC) {
 		ahw->op_mode = QLCNIC_MGMT_FUNC;
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
-		nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
+		pax_open_kernel();
+		*(void **)&nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
+		pax_close_kernel();
 	} else {
 		return -EIO;
 	}
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 15ba8c4..3f56838 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -740,22 +740,22 @@ struct rtl8169_private {
 	struct mdio_ops {
 		void (*write)(struct rtl8169_private *, int, int);
 		int (*read)(struct rtl8169_private *, int);
-	} mdio_ops;
+	} __no_const mdio_ops;
 
 	struct pll_power_ops {
 		void (*down)(struct rtl8169_private *);
 		void (*up)(struct rtl8169_private *);
-	} pll_power_ops;
+	} __no_const pll_power_ops;
 
 	struct jumbo_ops {
 		void (*enable)(struct rtl8169_private *);
 		void (*disable)(struct rtl8169_private *);
-	} jumbo_ops;
+	} __no_const jumbo_ops;
 
 	struct csi_ops {
 		void (*write)(struct rtl8169_private *, int, int);
 		u32 (*read)(struct rtl8169_private *, int);
-	} csi_ops;
+	} __no_const csi_ops;
 
 	int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
 	int (*get_settings)(struct net_device *, struct ethtool_cmd *);
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
index 3f93624..cf01144 100644
--- a/drivers/net/ethernet/sfc/ptp.c
+++ b/drivers/net/ethernet/sfc/ptp.c
@@ -553,7 +553,7 @@ static int efx_ptp_synchronize(struct efx_nic *efx, unsigned int num_readings)
 		       (u32)((u64)ptp->start.dma_addr >> 32));
 
 	/* Clear flag that signals MC ready */
-	ACCESS_ONCE(*start) = 0;
+	ACCESS_ONCE_RW(*start) = 0;
 	efx_mcdi_rpc_start(efx, MC_CMD_PTP, synch_buf,
 			   MC_CMD_PTP_IN_SYNCHRONIZE_LEN);
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
index 50617c5..b13724c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
@@ -140,8 +140,8 @@ void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode)
 
 	writel(value, ioaddr + MMC_CNTRL);
 
-	pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
-		 MMC_CNTRL, value);
+//	pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
+//		 MMC_CNTRL, value);
 }
 
 /* To mask all all interrupts.*/
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index e6fe0d8..2b7d752 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -101,7 +101,7 @@ struct rndis_device {
 
 	enum rndis_device_state state;
 	bool link_state;
-	atomic_t new_req_id;
+	atomic_unchecked_t new_req_id;
 
 	spinlock_t request_lock;
 	struct list_head req_list;
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 0775f0a..d4fb316 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -104,7 +104,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev,
 	 * template
 	 */
 	set = &rndis_msg->msg.set_req;
-	set->req_id = atomic_inc_return(&dev->new_req_id);
+	set->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
 
 	/* Add to the request list */
 	spin_lock_irqsave(&dev->request_lock, flags);
@@ -752,7 +752,7 @@ static void rndis_filter_halt_device(struct rndis_device *dev)
 
 	/* Setup the rndis set */
 	halt = &request->request_msg.msg.halt_req;
-	halt->req_id = atomic_inc_return(&dev->new_req_id);
+	halt->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
 
 	/* Ignore return since this msg is optional. */
 	rndis_filter_send_request(dev, request);
diff --git a/drivers/net/ieee802154/fakehard.c b/drivers/net/ieee802154/fakehard.c
index 8f1c256..a2991d1 100644
--- a/drivers/net/ieee802154/fakehard.c
+++ b/drivers/net/ieee802154/fakehard.c
@@ -385,7 +385,7 @@ static int ieee802154fake_probe(struct platform_device *pdev)
 	phy->transmit_power = 0xbf;
 
 	dev->netdev_ops = &fake_ops;
-	dev->ml_priv = &fake_mlme;
+	dev->ml_priv = (void *)&fake_mlme;
 
 	priv = netdev_priv(dev);
 	priv->phy = phy;
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 011062e..ada88e9 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -892,13 +892,15 @@ static const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = {
 int macvlan_link_register(struct rtnl_link_ops *ops)
 {
 	/* common fields */
-	ops->priv_size		= sizeof(struct macvlan_dev);
-	ops->validate		= macvlan_validate;
-	ops->maxtype		= IFLA_MACVLAN_MAX;
-	ops->policy		= macvlan_policy;
-	ops->changelink		= macvlan_changelink;
-	ops->get_size		= macvlan_get_size;
-	ops->fill_info		= macvlan_fill_info;
+	pax_open_kernel();
+	*(size_t *)&ops->priv_size	= sizeof(struct macvlan_dev);
+	*(void **)&ops->validate	= macvlan_validate;
+	*(int *)&ops->maxtype		= IFLA_MACVLAN_MAX;
+	*(const void **)&ops->policy	= macvlan_policy;
+	*(void **)&ops->changelink	= macvlan_changelink;
+	*(void **)&ops->get_size	= macvlan_get_size;
+	*(void **)&ops->fill_info	= macvlan_fill_info;
+	pax_close_kernel();
 
 	return rtnl_link_register(ops);
 };
@@ -954,7 +956,7 @@ static int macvlan_device_event(struct notifier_block *unused,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block macvlan_notifier_block __read_mostly = {
+static struct notifier_block macvlan_notifier_block = {
 	.notifier_call	= macvlan_device_event,
 };
 
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index a449439..1e468fe 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -1090,7 +1090,7 @@ static int macvtap_device_event(struct notifier_block *unused,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block macvtap_notifier_block __read_mostly = {
+static struct notifier_block macvtap_notifier_block = {
 	.notifier_call	= macvtap_device_event,
 };
 
diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c
index daec9b0..6428fcb 100644
--- a/drivers/net/phy/mdio-bitbang.c
+++ b/drivers/net/phy/mdio-bitbang.c
@@ -234,6 +234,7 @@ void free_mdio_bitbang(struct mii_bus *bus)
 	struct mdiobb_ctrl *ctrl = bus->priv;
 
 	module_put(ctrl->ops->owner);
+	mdiobus_unregister(bus);
 	mdiobus_free(bus);
 }
 EXPORT_SYMBOL(free_mdio_bitbang);
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index 72ff14b..11d442d 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -999,7 +999,6 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	void __user *addr = (void __user *) ifr->ifr_ifru.ifru_data;
 	struct ppp_stats stats;
 	struct ppp_comp_stats cstats;
-	char *vers;
 
 	switch (cmd) {
 	case SIOCGPPPSTATS:
@@ -1021,8 +1020,7 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		break;
 
 	case SIOCGPPPVER:
-		vers = PPP_VERSION;
-		if (copy_to_user(addr, vers, strlen(vers) + 1))
+		if (copy_to_user(addr, PPP_VERSION, sizeof(PPP_VERSION)))
 			break;
 		err = 0;
 		break;
diff --git a/drivers/net/slip/slhc.c b/drivers/net/slip/slhc.c
index 1252d9c..80e660b 100644
--- a/drivers/net/slip/slhc.c
+++ b/drivers/net/slip/slhc.c
@@ -488,7 +488,7 @@ slhc_uncompress(struct slcompress *comp, unsigned char *icp, int isize)
 	register struct tcphdr *thp;
 	register struct iphdr *ip;
 	register struct cstate *cs;
-	int len, hdrlen;
+	long len, hdrlen;
 	unsigned char *cp = icp;
 
 	/* We've got a compressed packet; read the change byte */
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index bf34192..fba3500 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2668,7 +2668,7 @@ static int team_device_event(struct notifier_block *unused,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block team_notifier_block __read_mostly = {
+static struct notifier_block team_notifier_block = {
 	.notifier_call = team_device_event,
 };
 
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 755fa9e..631fdce 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1841,7 +1841,7 @@ unlock:
 }
 
 static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
-			    unsigned long arg, int ifreq_len)
+			    unsigned long arg, size_t ifreq_len)
 {
 	struct tun_file *tfile = file->private_data;
 	struct tun_struct *tun;
@@ -1853,6 +1853,9 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
 	int vnet_hdr_sz;
 	int ret;
 
+	if (ifreq_len > sizeof ifr)
+		return -EFAULT;
+
 	if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == 0x89) {
 		if (copy_from_user(&ifr, argp, ifreq_len))
 			return -EFAULT;
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index e2dd324..be92fcf 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -71,7 +71,7 @@
 #include <asm/byteorder.h>
 #include <linux/serial_core.h>
 #include <linux/serial.h>
-
+#include <asm/local.h>
 
 #define MOD_AUTHOR			"Option Wireless"
 #define MOD_DESCRIPTION			"USB High Speed Option driver"
@@ -1180,7 +1180,7 @@ static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial)
 	struct urb *urb;
 
 	urb = serial->rx_urb[0];
-	if (serial->port.count > 0) {
+	if (atomic_read(&serial->port.count) > 0) {
 		count = put_rxbuf_data(urb, serial);
 		if (count == -1)
 			return;
@@ -1216,7 +1216,7 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb)
 	DUMP1(urb->transfer_buffer, urb->actual_length);
 
 	/* Anyone listening? */
-	if (serial->port.count == 0)
+	if (atomic_read(&serial->port.count) == 0)
 		return;
 
 	if (status == 0) {
@@ -1298,8 +1298,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
 	tty_port_tty_set(&serial->port, tty);
 
 	/* check for port already opened, if not set the termios */
-	serial->port.count++;
-	if (serial->port.count == 1) {
+	if (atomic_inc_return(&serial->port.count) == 1) {
 		serial->rx_state = RX_IDLE;
 		/* Force default termio settings */
 		_hso_serial_set_termios(tty, NULL);
@@ -1311,7 +1310,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
 		result = hso_start_serial_device(serial->parent, GFP_KERNEL);
 		if (result) {
 			hso_stop_serial_device(serial->parent);
-			serial->port.count--;
+			atomic_dec(&serial->port.count);
 			kref_put(&serial->parent->ref, hso_serial_ref_free);
 		}
 	} else {
@@ -1348,10 +1347,10 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
 
 	/* reset the rts and dtr */
 	/* do the actual close */
-	serial->port.count--;
+	atomic_dec(&serial->port.count);
 
-	if (serial->port.count <= 0) {
-		serial->port.count = 0;
+	if (atomic_read(&serial->port.count) <= 0) {
+		atomic_set(&serial->port.count, 0);
 		tty_port_tty_set(&serial->port, NULL);
 		if (!usb_gone)
 			hso_stop_serial_device(serial->parent);
@@ -1427,7 +1426,7 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
 
 	/* the actual setup */
 	spin_lock_irqsave(&serial->serial_lock, flags);
-	if (serial->port.count)
+	if (atomic_read(&serial->port.count))
 		_hso_serial_set_termios(tty, old);
 	else
 		tty->termios = *old;
@@ -1886,7 +1885,7 @@ static void intr_callback(struct urb *urb)
 				D1("Pending read interrupt on port %d\n", i);
 				spin_lock(&serial->serial_lock);
 				if (serial->rx_state == RX_IDLE &&
-					serial->port.count > 0) {
+					atomic_read(&serial->port.count) > 0) {
 					/* Setup and send a ctrl req read on
 					 * port i */
 					if (!serial->rx_urb_filled[0]) {
@@ -3066,7 +3065,7 @@ static int hso_resume(struct usb_interface *iface)
 	/* Start all serial ports */
 	for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
 		if (serial_table[i] && (serial_table[i]->interface == iface)) {
-			if (dev2ser(serial_table[i])->port.count) {
+			if (atomic_read(&dev2ser(serial_table[i])->port.count)) {
 				result =
 				    hso_start_serial_device(serial_table[i], GFP_NOIO);
 				hso_kick_transmit(dev2ser(serial_table[i]));
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 7cee7a3..1eb9f3b 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1443,7 +1443,7 @@ nla_put_failure:
 	return -EMSGSIZE;
 }
 
-static struct rtnl_link_ops vxlan_link_ops __read_mostly = {
+static struct rtnl_link_ops vxlan_link_ops = {
 	.kind		= "vxlan",
 	.maxtype	= IFLA_VXLAN_MAX,
 	.policy		= vxlan_policy,
diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
index 5ac5f7a..5f82012 100644
--- a/drivers/net/wireless/at76c50x-usb.c
+++ b/drivers/net/wireless/at76c50x-usb.c
@@ -353,7 +353,7 @@ static int at76_dfu_get_state(struct usb_device *udev, u8 *state)
 }
 
 /* Convert timeout from the DFU status to jiffies */
-static inline unsigned long at76_get_timeout(struct dfu_status *s)
+static inline unsigned long __intentional_overflow(-1) at76_get_timeout(struct dfu_status *s)
 {
 	return msecs_to_jiffies((s->poll_timeout[2] << 16)
 				| (s->poll_timeout[1] << 8)
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
index 8d78253..bebbb68 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
@@ -184,8 +184,8 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 	ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
 	ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
 
-	ACCESS_ONCE(ads->ds_link) = i->link;
-	ACCESS_ONCE(ads->ds_data) = i->buf_addr[0];
+	ACCESS_ONCE_RW(ads->ds_link) = i->link;
+	ACCESS_ONCE_RW(ads->ds_data) = i->buf_addr[0];
 
 	ctl1 = i->buf_len[0] | (i->is_last ? 0 : AR_TxMore);
 	ctl6 = SM(i->keytype, AR_EncrType);
@@ -199,26 +199,26 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 
 	if ((i->is_first || i->is_last) &&
 	    i->aggr != AGGR_BUF_MIDDLE && i->aggr != AGGR_BUF_LAST) {
-		ACCESS_ONCE(ads->ds_ctl2) = set11nTries(i->rates, 0)
+		ACCESS_ONCE_RW(ads->ds_ctl2) = set11nTries(i->rates, 0)
 			| set11nTries(i->rates, 1)
 			| set11nTries(i->rates, 2)
 			| set11nTries(i->rates, 3)
 			| (i->dur_update ? AR_DurUpdateEna : 0)
 			| SM(0, AR_BurstDur);
 
-		ACCESS_ONCE(ads->ds_ctl3) = set11nRate(i->rates, 0)
+		ACCESS_ONCE_RW(ads->ds_ctl3) = set11nRate(i->rates, 0)
 			| set11nRate(i->rates, 1)
 			| set11nRate(i->rates, 2)
 			| set11nRate(i->rates, 3);
 	} else {
-		ACCESS_ONCE(ads->ds_ctl2) = 0;
-		ACCESS_ONCE(ads->ds_ctl3) = 0;
+		ACCESS_ONCE_RW(ads->ds_ctl2) = 0;
+		ACCESS_ONCE_RW(ads->ds_ctl3) = 0;
 	}
 
 	if (!i->is_first) {
-		ACCESS_ONCE(ads->ds_ctl0) = 0;
-		ACCESS_ONCE(ads->ds_ctl1) = ctl1;
-		ACCESS_ONCE(ads->ds_ctl6) = ctl6;
+		ACCESS_ONCE_RW(ads->ds_ctl0) = 0;
+		ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
+		ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
 		return;
 	}
 
@@ -243,7 +243,7 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 		break;
 	}
 
-	ACCESS_ONCE(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
+	ACCESS_ONCE_RW(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
 		| (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
 		| SM(i->txpower, AR_XmitPower)
 		| (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
@@ -253,19 +253,19 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 		| (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable :
 		   (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0));
 
-	ACCESS_ONCE(ads->ds_ctl1) = ctl1;
-	ACCESS_ONCE(ads->ds_ctl6) = ctl6;
+	ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
+	ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
 
 	if (i->aggr == AGGR_BUF_MIDDLE || i->aggr == AGGR_BUF_LAST)
 		return;
 
-	ACCESS_ONCE(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
+	ACCESS_ONCE_RW(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
 		| set11nPktDurRTSCTS(i->rates, 1);
 
-	ACCESS_ONCE(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
+	ACCESS_ONCE_RW(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
 		| set11nPktDurRTSCTS(i->rates, 3);
 
-	ACCESS_ONCE(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
+	ACCESS_ONCE_RW(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
 		| set11nRateFlags(i->rates, 1)
 		| set11nRateFlags(i->rates, 2)
 		| set11nRateFlags(i->rates, 3)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index 301bf72..3f5654f 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -39,47 +39,47 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 	      (i->qcu << AR_TxQcuNum_S) | desc_len;
 
 	checksum += val;
-	ACCESS_ONCE(ads->info) = val;
+	ACCESS_ONCE_RW(ads->info) = val;
 
 	checksum += i->link;
-	ACCESS_ONCE(ads->link) = i->link;
+	ACCESS_ONCE_RW(ads->link) = i->link;
 
 	checksum += i->buf_addr[0];
-	ACCESS_ONCE(ads->data0) = i->buf_addr[0];
+	ACCESS_ONCE_RW(ads->data0) = i->buf_addr[0];
 	checksum += i->buf_addr[1];
-	ACCESS_ONCE(ads->data1) = i->buf_addr[1];
+	ACCESS_ONCE_RW(ads->data1) = i->buf_addr[1];
 	checksum += i->buf_addr[2];
-	ACCESS_ONCE(ads->data2) = i->buf_addr[2];
+	ACCESS_ONCE_RW(ads->data2) = i->buf_addr[2];
 	checksum += i->buf_addr[3];
-	ACCESS_ONCE(ads->data3) = i->buf_addr[3];
+	ACCESS_ONCE_RW(ads->data3) = i->buf_addr[3];
 
 	checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen);
-	ACCESS_ONCE(ads->ctl3) = val;
+	ACCESS_ONCE_RW(ads->ctl3) = val;
 	checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen);
-	ACCESS_ONCE(ads->ctl5) = val;
+	ACCESS_ONCE_RW(ads->ctl5) = val;
 	checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen);
-	ACCESS_ONCE(ads->ctl7) = val;
+	ACCESS_ONCE_RW(ads->ctl7) = val;
 	checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen);
-	ACCESS_ONCE(ads->ctl9) = val;
+	ACCESS_ONCE_RW(ads->ctl9) = val;
 
 	checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff);
-	ACCESS_ONCE(ads->ctl10) = checksum;
+	ACCESS_ONCE_RW(ads->ctl10) = checksum;
 
 	if (i->is_first || i->is_last) {
-		ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0)
+		ACCESS_ONCE_RW(ads->ctl13) = set11nTries(i->rates, 0)
 			| set11nTries(i->rates, 1)
 			| set11nTries(i->rates, 2)
 			| set11nTries(i->rates, 3)
 			| (i->dur_update ? AR_DurUpdateEna : 0)
 			| SM(0, AR_BurstDur);
 
-		ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0)
+		ACCESS_ONCE_RW(ads->ctl14) = set11nRate(i->rates, 0)
 			| set11nRate(i->rates, 1)
 			| set11nRate(i->rates, 2)
 			| set11nRate(i->rates, 3);
 	} else {
-		ACCESS_ONCE(ads->ctl13) = 0;
-		ACCESS_ONCE(ads->ctl14) = 0;
+		ACCESS_ONCE_RW(ads->ctl13) = 0;
+		ACCESS_ONCE_RW(ads->ctl14) = 0;
 	}
 
 	ads->ctl20 = 0;
@@ -89,17 +89,17 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 
 	ctl17 = SM(i->keytype, AR_EncrType);
 	if (!i->is_first) {
-		ACCESS_ONCE(ads->ctl11) = 0;
-		ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
-		ACCESS_ONCE(ads->ctl15) = 0;
-		ACCESS_ONCE(ads->ctl16) = 0;
-		ACCESS_ONCE(ads->ctl17) = ctl17;
-		ACCESS_ONCE(ads->ctl18) = 0;
-		ACCESS_ONCE(ads->ctl19) = 0;
+		ACCESS_ONCE_RW(ads->ctl11) = 0;
+		ACCESS_ONCE_RW(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
+		ACCESS_ONCE_RW(ads->ctl15) = 0;
+		ACCESS_ONCE_RW(ads->ctl16) = 0;
+		ACCESS_ONCE_RW(ads->ctl17) = ctl17;
+		ACCESS_ONCE_RW(ads->ctl18) = 0;
+		ACCESS_ONCE_RW(ads->ctl19) = 0;
 		return;
 	}
 
-	ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen)
+	ACCESS_ONCE_RW(ads->ctl11) = (i->pkt_len & AR_FrameLen)
 		| (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
 		| SM(i->txpower, AR_XmitPower)
 		| (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
@@ -135,22 +135,22 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 	val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S;
 	ctl12 |= SM(val, AR_PAPRDChainMask);
 
-	ACCESS_ONCE(ads->ctl12) = ctl12;
-	ACCESS_ONCE(ads->ctl17) = ctl17;
+	ACCESS_ONCE_RW(ads->ctl12) = ctl12;
+	ACCESS_ONCE_RW(ads->ctl17) = ctl17;
 
-	ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
+	ACCESS_ONCE_RW(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
 		| set11nPktDurRTSCTS(i->rates, 1);
 
-	ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
+	ACCESS_ONCE_RW(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
 		| set11nPktDurRTSCTS(i->rates, 3);
 
-	ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0)
+	ACCESS_ONCE_RW(ads->ctl18) = set11nRateFlags(i->rates, 0)
 		| set11nRateFlags(i->rates, 1)
 		| set11nRateFlags(i->rates, 2)
 		| set11nRateFlags(i->rates, 3)
 		| SM(i->rtscts_rate, AR_RTSCTSRate);
 
-	ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding;
+	ACCESS_ONCE_RW(ads->ctl19) = AR_Not_Sounding;
 }
 
 static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 784e81c..349e01e 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -653,7 +653,7 @@ struct ath_hw_private_ops {
 
 	/* ANI */
 	void (*ani_cache_ini_regs)(struct ath_hw *ah);
-};
+} __no_const;
 
 /**
  * struct ath_spec_scan - parameters for Atheros spectral scan
@@ -722,7 +722,7 @@ struct ath_hw_ops {
 				     struct ath_spec_scan *param);
 	void (*spectral_scan_trigger)(struct ath_hw *ah);
 	void (*spectral_scan_wait)(struct ath_hw *ah);
-};
+} __no_const;
 
 struct ath_nf_limits {
 	s16 max;
diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
index c353b5f..62aaca2 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -3639,7 +3639,9 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 */
 	if (il3945_mod_params.disable_hw_scan) {
 		D_INFO("Disabling hw_scan\n");
-		il3945_mac_ops.hw_scan = NULL;
+		pax_open_kernel();
+		*(void **)&il3945_mac_ops.hw_scan = NULL;
+		pax_close_kernel();
 	}
 
 	D_INFO("*** LOAD DRIVER ***\n");
diff --git a/drivers/net/wireless/iwlwifi/dvm/debugfs.c b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
index 81d4071..f2071ea 100644
--- a/drivers/net/wireless/iwlwifi/dvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
@@ -203,7 +203,7 @@ static ssize_t iwl_dbgfs_sram_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[64];
-	int buf_size;
+	size_t buf_size;
 	u32 offset, len;
 
 	memset(buf, 0, sizeof(buf));
@@ -473,7 +473,7 @@ static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
 	struct iwl_priv *priv = file->private_data;
 
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	u32 reset_flag;
 
 	memset(buf, 0, sizeof(buf));
@@ -554,7 +554,7 @@ static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int ht40;
 
 	memset(buf, 0, sizeof(buf));
@@ -606,7 +606,7 @@ static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int value;
 
 	memset(buf, 0, sizeof(buf));
@@ -1871,7 +1871,7 @@ static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int clear;
 
 	memset(buf, 0, sizeof(buf));
@@ -1916,7 +1916,7 @@ static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int trace;
 
 	memset(buf, 0, sizeof(buf));
@@ -1987,7 +1987,7 @@ static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int missed;
 
 	memset(buf, 0, sizeof(buf));
@@ -2028,7 +2028,7 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
 
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int plcp;
 
 	memset(buf, 0, sizeof(buf));
@@ -2088,7 +2088,7 @@ static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
 
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int flush;
 
 	memset(buf, 0, sizeof(buf));
@@ -2178,7 +2178,7 @@ static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
 
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int rts;
 
 	if (!priv->cfg->ht_params)
@@ -2220,7 +2220,7 @@ static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 
 	memset(buf, 0, sizeof(buf));
 	buf_size = min(count, sizeof(buf) -  1);
@@ -2256,7 +2256,7 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 	struct iwl_priv *priv = file->private_data;
 	u32 event_log_flag;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 
 	/* check that the interface is up */
 	if (!iwl_is_ready(priv))
@@ -2310,7 +2310,7 @@ static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
 	u32 calib_disabled;
-	int buf_size;
+	size_t buf_size;
 
 	memset(buf, 0, sizeof(buf));
 	buf_size = min(count, sizeof(buf) - 1);
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 12c4f31..484d948 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1328,7 +1328,7 @@ static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 	struct isr_statistics *isr_stats = &trans_pcie->isr_stats;
 
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	u32 reset_flag;
 
 	memset(buf, 0, sizeof(buf));
@@ -1349,7 +1349,7 @@ static ssize_t iwl_dbgfs_csr_write(struct file *file,
 {
 	struct iwl_trans *trans = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int csr;
 
 	memset(buf, 0, sizeof(buf));
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index cffdf4f..7cefb69 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2144,25 +2144,19 @@ static int __init init_mac80211_hwsim(void)
 
 	if (channels > 1) {
 		hwsim_if_comb.num_different_channels = channels;
-		mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
-		mac80211_hwsim_ops.cancel_hw_scan =
-			mac80211_hwsim_cancel_hw_scan;
-		mac80211_hwsim_ops.sw_scan_start = NULL;
-		mac80211_hwsim_ops.sw_scan_complete = NULL;
-		mac80211_hwsim_ops.remain_on_channel =
-			mac80211_hwsim_roc;
-		mac80211_hwsim_ops.cancel_remain_on_channel =
-			mac80211_hwsim_croc;
-		mac80211_hwsim_ops.add_chanctx =
-			mac80211_hwsim_add_chanctx;
-		mac80211_hwsim_ops.remove_chanctx =
-			mac80211_hwsim_remove_chanctx;
-		mac80211_hwsim_ops.change_chanctx =
-			mac80211_hwsim_change_chanctx;
-		mac80211_hwsim_ops.assign_vif_chanctx =
-			mac80211_hwsim_assign_vif_chanctx;
-		mac80211_hwsim_ops.unassign_vif_chanctx =
-			mac80211_hwsim_unassign_vif_chanctx;
+		pax_open_kernel();
+		*(void **)&mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
+		*(void **)&mac80211_hwsim_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
+		*(void **)&mac80211_hwsim_ops.sw_scan_start = NULL;
+		*(void **)&mac80211_hwsim_ops.sw_scan_complete = NULL;
+		*(void **)&mac80211_hwsim_ops.remain_on_channel = mac80211_hwsim_roc;
+		*(void **)&mac80211_hwsim_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
+		*(void **)&mac80211_hwsim_ops.add_chanctx = mac80211_hwsim_add_chanctx;
+		*(void **)&mac80211_hwsim_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
+		*(void **)&mac80211_hwsim_ops.change_chanctx = mac80211_hwsim_change_chanctx;
+		*(void **)&mac80211_hwsim_ops.assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx;
+		*(void **)&mac80211_hwsim_ops.unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx;
+		pax_close_kernel();
 	}
 
 	spin_lock_init(&hwsim_radio_lock);
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index 525fd75..6c9f791 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -1238,7 +1238,7 @@ static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
 
 	netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
 
-	if (rts_threshold < 0 || rts_threshold > 2347)
+	if (rts_threshold > 2347)
 		rts_threshold = 2347;
 
 	tmp = cpu_to_le32(rts_threshold);
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 086abb4..8279c30 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -396,7 +396,7 @@ struct rt2x00_intf {
 	 * for hardware which doesn't support hardware
 	 * sequence counting.
 	 */
-	atomic_t seqno;
+	atomic_unchecked_t seqno;
 };
 
 static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 4d91795..62fccff 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -251,9 +251,9 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
 	 * sequence counter given by mac80211.
 	 */
 	if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
-		seqno = atomic_add_return(0x10, &intf->seqno);
+		seqno = atomic_add_return_unchecked(0x10, &intf->seqno);
 	else
-		seqno = atomic_read(&intf->seqno);
+		seqno = atomic_read_unchecked(&intf->seqno);
 
 	hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
 	hdr->seq_ctrl |= cpu_to_le16(seqno);
diff --git a/drivers/net/wireless/ti/wl1251/sdio.c b/drivers/net/wireless/ti/wl1251/sdio.c
index e57ee48..541cf6c 100644
--- a/drivers/net/wireless/ti/wl1251/sdio.c
+++ b/drivers/net/wireless/ti/wl1251/sdio.c
@@ -269,13 +269,17 @@ static int wl1251_sdio_probe(struct sdio_func *func,
 
 		irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
 
-		wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
-		wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
+		pax_open_kernel();
+		*(void **)&wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
+		*(void **)&wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
+		pax_close_kernel();
 
 		wl1251_info("using dedicated interrupt line");
 	} else {
-		wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
-		wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
+		pax_open_kernel();
+		*(void **)&wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
+		*(void **)&wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
+		pax_close_kernel();
 
 		wl1251_info("using SDIO interrupt");
 	}
diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index 09694e3..24ccec7 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -656,7 +656,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
 		       sizeof(wl->conf.mem));
 
 		/* read data preparation is only needed by wl127x */
-		wl->ops->prepare_read = wl127x_prepare_read;
+		pax_open_kernel();
+		*(void **)&wl->ops->prepare_read = wl127x_prepare_read;
+		pax_close_kernel();
 
 		wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
 			      WL127X_IFTYPE_SR_VER,  WL127X_MAJOR_SR_VER,
@@ -681,7 +683,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
 		       sizeof(wl->conf.mem));
 
 		/* read data preparation is only needed by wl127x */
-		wl->ops->prepare_read = wl127x_prepare_read;
+		pax_open_kernel();
+		*(void **)&wl->ops->prepare_read = wl127x_prepare_read;
+		pax_close_kernel();
 
 		wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
 			      WL127X_IFTYPE_SR_VER,  WL127X_MAJOR_SR_VER,
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index da3ef1b..4790b95 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -1664,8 +1664,10 @@ static int wl18xx_setup(struct wl1271 *wl)
 	}
 
 	if (!checksum_param) {
-		wl18xx_ops.set_rx_csum = NULL;
-		wl18xx_ops.init_vif = NULL;
+		pax_open_kernel();
+		*(void **)&wl18xx_ops.set_rx_csum = NULL;
+		*(void **)&wl18xx_ops.init_vif = NULL;
+		pax_close_kernel();
 	}
 
 	/* Enable 11a Band only if we have 5G antennas */
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index 7ef0b4a..ff65c28 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -386,7 +386,7 @@ static inline void handle_regs_int(struct urb *urb)
 {
 	struct zd_usb *usb = urb->context;
 	struct zd_usb_interrupt *intr = &usb->intr;
-	int len;
+	unsigned int len;
 	u16 int_num;
 
 	ZD_ASSERT(in_interrupt());
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index d93b2b6..ae50401 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -332,7 +332,7 @@ static void add_data(struct op_entry *entry, struct mm_struct *mm)
 		if (cookie == NO_COOKIE)
 			offset = pc;
 		if (cookie == INVALID_COOKIE) {
-			atomic_inc(&oprofile_stats.sample_lost_no_mapping);
+			atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
 			offset = pc;
 		}
 		if (cookie != last_cookie) {
@@ -376,14 +376,14 @@ add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel)
 	/* add userspace sample */
 
 	if (!mm) {
-		atomic_inc(&oprofile_stats.sample_lost_no_mm);
+		atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm);
 		return 0;
 	}
 
 	cookie = lookup_dcookie(mm, s->eip, &offset);
 
 	if (cookie == INVALID_COOKIE) {
-		atomic_inc(&oprofile_stats.sample_lost_no_mapping);
+		atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
 		return 0;
 	}
 
@@ -552,7 +552,7 @@ void sync_buffer(int cpu)
 		/* ignore backtraces if failed to add a sample */
 		if (state == sb_bt_start) {
 			state = sb_bt_ignore;
-			atomic_inc(&oprofile_stats.bt_lost_no_mapping);
+			atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping);
 		}
 	}
 	release_mm(mm);
diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
index c0cc4e7..44d4e54 100644
--- a/drivers/oprofile/event_buffer.c
+++ b/drivers/oprofile/event_buffer.c
@@ -53,7 +53,7 @@ void add_event_entry(unsigned long value)
 	}
 
 	if (buffer_pos == buffer_size) {
-		atomic_inc(&oprofile_stats.event_lost_overflow);
+		atomic_inc_unchecked(&oprofile_stats.event_lost_overflow);
 		return;
 	}
 
diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
index ed2c3ec..deda85a 100644
--- a/drivers/oprofile/oprof.c
+++ b/drivers/oprofile/oprof.c
@@ -110,7 +110,7 @@ static void switch_worker(struct work_struct *work)
 	if (oprofile_ops.switch_events())
 		return;
 
-	atomic_inc(&oprofile_stats.multiplex_counter);
+	atomic_inc_unchecked(&oprofile_stats.multiplex_counter);
 	start_switch_worker();
 }
 
diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
index 84a208d..d61b0a1 100644
--- a/drivers/oprofile/oprofile_files.c
+++ b/drivers/oprofile/oprofile_files.c
@@ -27,7 +27,7 @@ unsigned long oprofile_time_slice;
 
 #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
 
-static ssize_t timeout_read(struct file *file, char __user *buf,
+static ssize_t __intentional_overflow(-1) timeout_read(struct file *file, char __user *buf,
 		size_t count, loff_t *offset)
 {
 	return oprofilefs_ulong_to_user(jiffies_to_msecs(oprofile_time_slice),
diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
index 917d28e..d62d981 100644
--- a/drivers/oprofile/oprofile_stats.c
+++ b/drivers/oprofile/oprofile_stats.c
@@ -30,11 +30,11 @@ void oprofile_reset_stats(void)
 		cpu_buf->sample_invalid_eip = 0;
 	}
 
-	atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
-	atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
-	atomic_set(&oprofile_stats.event_lost_overflow, 0);
-	atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
-	atomic_set(&oprofile_stats.multiplex_counter, 0);
+	atomic_set_unchecked(&oprofile_stats.sample_lost_no_mm, 0);
+	atomic_set_unchecked(&oprofile_stats.sample_lost_no_mapping, 0);
+	atomic_set_unchecked(&oprofile_stats.event_lost_overflow, 0);
+	atomic_set_unchecked(&oprofile_stats.bt_lost_no_mapping, 0);
+	atomic_set_unchecked(&oprofile_stats.multiplex_counter, 0);
 }
 
 
diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h
index 38b6fc0..b5cbfce 100644
--- a/drivers/oprofile/oprofile_stats.h
+++ b/drivers/oprofile/oprofile_stats.h
@@ -13,11 +13,11 @@
 #include <linux/atomic.h>
 
 struct oprofile_stat_struct {
-	atomic_t sample_lost_no_mm;
-	atomic_t sample_lost_no_mapping;
-	atomic_t bt_lost_no_mapping;
-	atomic_t event_lost_overflow;
-	atomic_t multiplex_counter;
+	atomic_unchecked_t sample_lost_no_mm;
+	atomic_unchecked_t sample_lost_no_mapping;
+	atomic_unchecked_t bt_lost_no_mapping;
+	atomic_unchecked_t event_lost_overflow;
+	atomic_unchecked_t multiplex_counter;
 };
 
 extern struct oprofile_stat_struct oprofile_stats;
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index 7c12d9c..558bf3bb 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -190,7 +190,7 @@ static const struct file_operations atomic_ro_fops = {
 
 
 int oprofilefs_create_ro_atomic(struct super_block *sb, struct dentry *root,
-	char const *name, atomic_t *val)
+	char const *name, atomic_unchecked_t *val)
 {
 	return __oprofilefs_create_file(sb, root, name,
 					&atomic_ro_fops, 0444, val);
diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
index 93404f7..4a313d8 100644
--- a/drivers/oprofile/timer_int.c
+++ b/drivers/oprofile/timer_int.c
@@ -93,7 +93,7 @@ static int __cpuinit oprofile_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata oprofile_cpu_notifier = {
+static struct notifier_block oprofile_cpu_notifier = {
 	.notifier_call = oprofile_cpu_notify,
 };
 
diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
index 3f56bc0..707d642 100644
--- a/drivers/parport/procfs.c
+++ b/drivers/parport/procfs.c
@@ -64,7 +64,7 @@ static int do_active_device(ctl_table *table, int write,
 
 	*ppos += len;
 
-	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
+	return (len > sizeof buffer || copy_to_user(result, buffer, len)) ? -EFAULT : 0;
 }
 
 #ifdef CONFIG_PARPORT_1284
@@ -106,7 +106,7 @@ static int do_autoprobe(ctl_table *table, int write,
 
 	*ppos += len;
 
-	return copy_to_user (result, buffer, len) ? -EFAULT : 0;
+	return (len > sizeof buffer || copy_to_user (result, buffer, len)) ? -EFAULT : 0;
 }
 #endif /* IEEE1284.3 support. */
 
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index c35e8ad..fc33beb 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -464,7 +464,9 @@ static int __init ibm_acpiphp_init(void)
 		goto init_cleanup;
 	}
 
-	ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
+	pax_open_kernel();
+	*(size_t *)&ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
+	pax_close_kernel();
 	retval = sysfs_create_bin_file(sysdir, &ibm_apci_table_attr);
 
 	return retval;
diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
index a6a71c4..c91097b 100644
--- a/drivers/pci/hotplug/cpcihp_generic.c
+++ b/drivers/pci/hotplug/cpcihp_generic.c
@@ -73,7 +73,6 @@ static u16 port;
 static unsigned int enum_bit;
 static u8 enum_mask;
 
-static struct cpci_hp_controller_ops generic_hpc_ops;
 static struct cpci_hp_controller generic_hpc;
 
 static int __init validate_parameters(void)
@@ -139,6 +138,10 @@ static int query_enum(void)
 	return ((value & enum_mask) == enum_mask);
 }
 
+static struct cpci_hp_controller_ops generic_hpc_ops = {
+	.query_enum = query_enum,
+};
+
 static int __init cpcihp_generic_init(void)
 {
 	int status;
@@ -165,7 +168,6 @@ static int __init cpcihp_generic_init(void)
 	pci_dev_put(dev);
 
 	memset(&generic_hpc, 0, sizeof (struct cpci_hp_controller));
-	generic_hpc_ops.query_enum = query_enum;
 	generic_hpc.ops = &generic_hpc_ops;
 
 	status = cpci_hp_register_controller(&generic_hpc);
diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
index 449b4bb..257e2e8 100644
--- a/drivers/pci/hotplug/cpcihp_zt5550.c
+++ b/drivers/pci/hotplug/cpcihp_zt5550.c
@@ -59,7 +59,6 @@
 /* local variables */
 static bool debug;
 static bool poll;
-static struct cpci_hp_controller_ops zt5550_hpc_ops;
 static struct cpci_hp_controller zt5550_hpc;
 
 /* Primary cPCI bus bridge device */
@@ -205,6 +204,10 @@ static int zt5550_hc_disable_irq(void)
 	return 0;
 }
 
+static struct cpci_hp_controller_ops zt5550_hpc_ops = {
+	.query_enum = zt5550_hc_query_enum,
+};
+
 static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	int status;
@@ -216,16 +219,17 @@ static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id
 	dbg("returned from zt5550_hc_config");
 
 	memset(&zt5550_hpc, 0, sizeof (struct cpci_hp_controller));
-	zt5550_hpc_ops.query_enum = zt5550_hc_query_enum;
 	zt5550_hpc.ops = &zt5550_hpc_ops;
 	if(!poll) {
 		zt5550_hpc.irq = hc_dev->irq;
 		zt5550_hpc.irq_flags = IRQF_SHARED;
 		zt5550_hpc.dev_id = hc_dev;
 
-		zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
-		zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
-		zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
+		pax_open_kernel();
+		*(void **)&zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
+		*(void **)&zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
+		*(void **)&zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
+		pax_open_kernel();
 	} else {
 		info("using ENUM# polling mode");
 	}
diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
index 76ba8a1..20ca857 100644
--- a/drivers/pci/hotplug/cpqphp_nvram.c
+++ b/drivers/pci/hotplug/cpqphp_nvram.c
@@ -428,9 +428,13 @@ static u32 store_HRT (void __iomem *rom_start)
 
 void compaq_nvram_init (void __iomem *rom_start)
 {
+
+#ifndef CONFIG_PAX_KERNEXEC
 	if (rom_start) {
 		compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
 	}
+#endif
+
 	dbg("int15 entry  = %p\n", compaq_int15_entry_point);
 
 	/* initialize our int15 lock */
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index 202f4a9..8ee47d0 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -448,8 +448,10 @@ int __pci_hp_register(struct hotplug_slot *slot, struct pci_bus *bus,
 		return -EINVAL;
 	}
 
-	slot->ops->owner = owner;
-	slot->ops->mod_name = mod_name;
+	pax_open_kernel();
+	*(struct module **)&slot->ops->owner = owner;
+	*(const char **)&slot->ops->mod_name = mod_name;
+	pax_close_kernel();
 
 	mutex_lock(&pci_hp_mutex);
 	/*
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 7d72c5e..edce02c 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -91,7 +91,7 @@ static int init_slot(struct controller *ctrl)
 	struct slot *slot = ctrl->slot;
 	struct hotplug_slot *hotplug = NULL;
 	struct hotplug_slot_info *info = NULL;
-	struct hotplug_slot_ops *ops = NULL;
+	hotplug_slot_ops_no_const *ops = NULL;
 	char name[SLOT_NAME_SIZE];
 	int retval = -ENOMEM;
 
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 9c6e9bb..2916736 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1071,7 +1071,7 @@ static int pci_create_attr(struct pci_dev *pdev, int num, int write_combine)
 {
 	/* allocate attribute structure, piggyback attribute name */
 	int name_len = write_combine ? 13 : 10;
-	struct bin_attribute *res_attr;
+	bin_attribute_no_const *res_attr;
 	int retval;
 
 	res_attr = kzalloc(sizeof(*res_attr) + name_len, GFP_ATOMIC);
@@ -1256,7 +1256,7 @@ static struct device_attribute reset_attr = __ATTR(reset, 0200, NULL, reset_stor
 static int pci_create_capabilities_sysfs(struct pci_dev *dev)
 {
 	int retval;
-	struct bin_attribute *attr;
+	bin_attribute_no_const *attr;
 
 	/* If the device has VPD, try to expose it in sysfs. */
 	if (dev->vpd) {
@@ -1303,7 +1303,7 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
 {
 	int retval;
 	int rom_size = 0;
-	struct bin_attribute *attr;
+	bin_attribute_no_const *attr;
 
 	if (!sysfs_initialized)
 		return -EACCES;
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 7346ee6..41520eb 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -93,7 +93,7 @@ struct pci_vpd_ops {
 struct pci_vpd {
 	unsigned int len;
 	const struct pci_vpd_ops *ops;
-	struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
+	bin_attribute_no_const *attr; /* descriptor for sysfs VPD entry */
 };
 
 extern int pci_vpd_pci22_init(struct pci_dev *dev);
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index d320df6..ca9a8f6 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -27,9 +27,9 @@
 #define MODULE_PARAM_PREFIX "pcie_aspm."
 
 /* Note: those are not register definitions */
-#define ASPM_STATE_L0S_UP	(1)	/* Upstream direction L0s state */
-#define ASPM_STATE_L0S_DW	(2)	/* Downstream direction L0s state */
-#define ASPM_STATE_L1		(4)	/* L1 state */
+#define ASPM_STATE_L0S_UP	(1U)	/* Upstream direction L0s state */
+#define ASPM_STATE_L0S_DW	(2U)	/* Downstream direction L0s state */
+#define ASPM_STATE_L1		(4U)	/* L1 state */
 #define ASPM_STATE_L0S		(ASPM_STATE_L0S_UP | ASPM_STATE_L0S_DW)
 #define ASPM_STATE_ALL		(ASPM_STATE_L0S | ASPM_STATE_L1)
 
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 5427787..8df273b 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -173,7 +173,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 	struct pci_bus_region region;
 	bool bar_too_big = false, bar_disabled = false;
 
-	mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
+	mask = type ? (u32)PCI_ROM_ADDRESS_MASK : ~0;
 
 	/* No printks while decoding is disabled! */
 	if (!dev->mmio_always_on) {
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 0b00947..64f7c0a 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -465,7 +465,16 @@ static const struct file_operations proc_bus_pci_dev_operations = {
 static int __init pci_proc_init(void)
 {
 	struct pci_dev *dev = NULL;
+
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
+#endif
+#else
 	proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
+#endif
 	proc_create("devices", 0, proc_bus_pci_dir,
 		    &proc_bus_pci_dev_operations);
 	proc_initialized = 1;
diff --git a/drivers/platform/x86/chromeos_laptop.c b/drivers/platform/x86/chromeos_laptop.c
index 3e5b4497..dcdfb70 100644
--- a/drivers/platform/x86/chromeos_laptop.c
+++ b/drivers/platform/x86/chromeos_laptop.c
@@ -301,7 +301,7 @@ static int __init setup_tsl2563_als(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id __initdata chromeos_laptop_dmi_table[] = {
+static struct dmi_system_id __initconst chromeos_laptop_dmi_table[] = {
 	{
 		.ident = "Samsung Series 5 550 - Touchpad",
 		.matches = {
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 6b22938..bc9700e 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -1000,12 +1000,14 @@ static int __init load_scm_model_init(struct platform_device *sdev)
 
 	if (!quirks->ec_read_only) {
 		/* allow userland write sysfs file  */
-		dev_attr_bluetooth.store = store_bluetooth;
-		dev_attr_wlan.store = store_wlan;
-		dev_attr_threeg.store = store_threeg;
-		dev_attr_bluetooth.attr.mode |= S_IWUSR;
-		dev_attr_wlan.attr.mode |= S_IWUSR;
-		dev_attr_threeg.attr.mode |= S_IWUSR;
+		pax_open_kernel();
+		*(void **)&dev_attr_bluetooth.store = store_bluetooth;
+		*(void **)&dev_attr_wlan.store = store_wlan;
+		*(void **)&dev_attr_threeg.store = store_threeg;
+		*(umode_t *)&dev_attr_bluetooth.attr.mode |= S_IWUSR;
+		*(umode_t *)&dev_attr_wlan.attr.mode |= S_IWUSR;
+		*(umode_t *)&dev_attr_threeg.attr.mode |= S_IWUSR;
+		pax_close_kernel();
 	}
 
 	/* disable hardware control by fn key */
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 14d4dce..b129917 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -2465,7 +2465,7 @@ static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
 }
 
 /* High speed charging function */
-static struct device_attribute *hsc_handle;
+static device_attribute_no_const *hsc_handle;
 
 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
 		struct device_attribute *attr,
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index edec135..59a24a3 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -2093,7 +2093,7 @@ static int hotkey_mask_get(void)
 	return 0;
 }
 
-void static hotkey_mask_warn_incomplete_mask(void)
+static void hotkey_mask_warn_incomplete_mask(void)
 {
 	/* log only what the user can fix... */
 	const u32 wantedmask = hotkey_driver_mask &
@@ -2324,11 +2324,6 @@ static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m)
 	}
 }
 
-static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
-					   struct tp_nvram_state *newn,
-					   const u32 event_mask)
-{
-
 #define TPACPI_COMPARE_KEY(__scancode, __member) \
 	do { \
 		if ((event_mask & (1 << __scancode)) && \
@@ -2342,36 +2337,42 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
 			tpacpi_hotkey_send_key(__scancode); \
 	} while (0)
 
-	void issue_volchange(const unsigned int oldvol,
-			     const unsigned int newvol)
-	{
-		unsigned int i = oldvol;
+static void issue_volchange(const unsigned int oldvol,
+			    const unsigned int newvol,
+			    const u32 event_mask)
+{
+	unsigned int i = oldvol;
 
-		while (i > newvol) {
-			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
-			i--;
-		}
-		while (i < newvol) {
-			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
-			i++;
-		}
+	while (i > newvol) {
+		TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
+		i--;
 	}
+	while (i < newvol) {
+		TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
+		i++;
+	}
+}
 
-	void issue_brightnesschange(const unsigned int oldbrt,
-				    const unsigned int newbrt)
-	{
-		unsigned int i = oldbrt;
+static void issue_brightnesschange(const unsigned int oldbrt,
+				   const unsigned int newbrt,
+				   const u32 event_mask)
+{
+	unsigned int i = oldbrt;
 
-		while (i > newbrt) {
-			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
-			i--;
-		}
-		while (i < newbrt) {
-			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
-			i++;
-		}
+	while (i > newbrt) {
+		TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
+		i--;
+	}
+	while (i < newbrt) {
+		TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
+		i++;
 	}
+}
 
+static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
+					   struct tp_nvram_state *newn,
+					   const u32 event_mask)
+{
 	TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle);
 	TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle);
 	TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle);
@@ -2405,7 +2406,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
 		    oldn->volume_level != newn->volume_level) {
 			/* recently muted, or repeated mute keypress, or
 			 * multiple presses ending in mute */
-			issue_volchange(oldn->volume_level, newn->volume_level);
+			issue_volchange(oldn->volume_level, newn->volume_level, event_mask);
 			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
 		}
 	} else {
@@ -2415,7 +2416,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
 			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
 		}
 		if (oldn->volume_level != newn->volume_level) {
-			issue_volchange(oldn->volume_level, newn->volume_level);
+			issue_volchange(oldn->volume_level, newn->volume_level, event_mask);
 		} else if (oldn->volume_toggle != newn->volume_toggle) {
 			/* repeated vol up/down keypress at end of scale ? */
 			if (newn->volume_level == 0)
@@ -2428,7 +2429,8 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
 	/* handle brightness */
 	if (oldn->brightness_level != newn->brightness_level) {
 		issue_brightnesschange(oldn->brightness_level,
-				       newn->brightness_level);
+				       newn->brightness_level,
+				       event_mask);
 	} else if (oldn->brightness_toggle != newn->brightness_toggle) {
 		/* repeated key presses that didn't change state */
 		if (newn->brightness_level == 0)
@@ -2437,10 +2439,10 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
 				&& !tp_features.bright_unkfw)
 			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
 	}
+}
 
 #undef TPACPI_COMPARE_KEY
 #undef TPACPI_MAY_SEND_KEY
-}
 
 /*
  * Polling driver
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
index 769d265..a3a05ca 100644
--- a/drivers/pnp/pnpbios/bioscalls.c
+++ b/drivers/pnp/pnpbios/bioscalls.c
@@ -58,7 +58,7 @@ do { \
 	set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \
 } while(0)
 
-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
 			(unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
 
 /*
@@ -95,7 +95,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
 
 	cpu = get_cpu();
 	save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
+
+	pax_open_kernel();
 	get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
+	pax_close_kernel();
 
 	/* On some boxes IRQ's during PnP BIOS calls are deadly.  */
 	spin_lock_irqsave(&pnp_bios_lock, flags);
@@ -133,7 +136,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
 			     :"memory");
 	spin_unlock_irqrestore(&pnp_bios_lock, flags);
 
+	pax_open_kernel();
 	get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
+	pax_close_kernel();
+
 	put_cpu();
 
 	/* If we get here and this is set then the PnP BIOS faulted on us. */
@@ -467,7 +473,7 @@ int pnp_bios_read_escd(char *data, u32 nvram_base)
 	return status;
 }
 
-void pnpbios_calls_init(union pnp_bios_install_struct *header)
+void __init pnpbios_calls_init(union pnp_bios_install_struct *header)
 {
 	int i;
 
@@ -475,6 +481,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
 	pnp_bios_callpoint.offset = header->fields.pm16offset;
 	pnp_bios_callpoint.segment = PNP_CS16;
 
+	pax_open_kernel();
+
 	for_each_possible_cpu(i) {
 		struct desc_struct *gdt = get_cpu_gdt_table(i);
 		if (!gdt)
@@ -486,4 +494,6 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
 		set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS],
 			 (unsigned long)__va(header->fields.pm16dseg));
 	}
+
+	pax_close_kernel();
 }
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index 3e6db1c..1fbbdae 100644
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -360,7 +360,7 @@ int pnp_check_irq(struct pnp_dev *dev, struct resource *res)
 		return 1;
 
 	/* check if the resource is valid */
-	if (*irq < 0 || *irq > 15)
+	if (*irq > 15)
 		return 0;
 
 	/* check if the resource is reserved */
@@ -424,7 +424,7 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res)
 		return 1;
 
 	/* check if the resource is valid */
-	if (*dma < 0 || *dma == 4 || *dma > 7)
+	if (*dma == 4 || *dma > 7)
 		return 0;
 
 	/* check if the resource is reserved */
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index 7df7c5f..bd48c47 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -37,7 +37,11 @@ static int polling;
 
 #ifdef CONFIG_USB_OTG_UTILS
 static struct usb_phy *transceiver;
-static struct notifier_block otg_nb;
+static int otg_handle_notification(struct notifier_block *nb,
+		unsigned long event, void *unused);
+static struct notifier_block otg_nb = {
+	.notifier_call = otg_handle_notification
+};
 #endif
 
 static struct regulator *ac_draw;
@@ -369,7 +373,6 @@ static int pda_power_probe(struct platform_device *pdev)
 
 #ifdef CONFIG_USB_OTG_UTILS
 	if (!IS_ERR_OR_NULL(transceiver) && pdata->use_otg_notifier) {
-		otg_nb.notifier_call = otg_handle_notification;
 		ret = usb_register_notifier(transceiver, &otg_nb);
 		if (ret) {
 			dev_err(dev, "failure to register otg notifier\n");
diff --git a/drivers/power/power_supply.h b/drivers/power/power_supply.h
index cc439fd..8fa30df 100644
--- a/drivers/power/power_supply.h
+++ b/drivers/power/power_supply.h
@@ -16,12 +16,12 @@ struct power_supply;
 
 #ifdef CONFIG_SYSFS
 
-extern void power_supply_init_attrs(struct device_type *dev_type);
+extern void power_supply_init_attrs(void);
 extern int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env);
 
 #else
 
-static inline void power_supply_init_attrs(struct device_type *dev_type) {}
+static inline void power_supply_init_attrs(void) {}
 #define power_supply_uevent NULL
 
 #endif /* CONFIG_SYSFS */
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 5deac43..608c5ff 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -24,7 +24,10 @@
 struct class *power_supply_class;
 EXPORT_SYMBOL_GPL(power_supply_class);
 
-static struct device_type power_supply_dev_type;
+extern const struct attribute_group *power_supply_attr_groups[];
+static struct device_type power_supply_dev_type = {
+	.groups = power_supply_attr_groups,
+};
 
 static int __power_supply_changed_work(struct device *dev, void *data)
 {
@@ -393,7 +396,7 @@ static int __init power_supply_class_init(void)
 		return PTR_ERR(power_supply_class);
 
 	power_supply_class->dev_uevent = power_supply_uevent;
-	power_supply_init_attrs(&power_supply_dev_type);
+	power_supply_init_attrs();
 
 	return 0;
 }
diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index 29178f7..c65f324 100644
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -230,17 +230,15 @@ static struct attribute_group power_supply_attr_group = {
 	.is_visible = power_supply_attr_is_visible,
 };
 
-static const struct attribute_group *power_supply_attr_groups[] = {
+const struct attribute_group *power_supply_attr_groups[] = {
 	&power_supply_attr_group,
 	NULL,
 };
 
-void power_supply_init_attrs(struct device_type *dev_type)
+void power_supply_init_attrs(void)
 {
 	int i;
 
-	dev_type->groups = power_supply_attr_groups;
-
 	for (i = 0; i < ARRAY_SIZE(power_supply_attrs); i++)
 		__power_supply_attrs[i] = &power_supply_attrs[i].attr;
 }
diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
index 4d7c635..9860196 100644
--- a/drivers/regulator/max8660.c
+++ b/drivers/regulator/max8660.c
@@ -333,8 +333,10 @@ static int max8660_probe(struct i2c_client *client,
 		max8660->shadow_regs[MAX8660_OVER1] = 5;
 	} else {
 		/* Otherwise devices can be toggled via software */
-		max8660_dcdc_ops.enable = max8660_dcdc_enable;
-		max8660_dcdc_ops.disable = max8660_dcdc_disable;
+		pax_open_kernel();
+		*(void **)&max8660_dcdc_ops.enable = max8660_dcdc_enable;
+		*(void **)&max8660_dcdc_ops.disable = max8660_dcdc_disable;
+		pax_close_kernel();
 	}
 
 	/*
diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
index 9a8ea91..c483dd9 100644
--- a/drivers/regulator/max8973-regulator.c
+++ b/drivers/regulator/max8973-regulator.c
@@ -401,9 +401,11 @@ static int max8973_probe(struct i2c_client *client,
 	if (!pdata->enable_ext_control) {
 		max->desc.enable_reg = MAX8973_VOUT;
 		max->desc.enable_mask = MAX8973_VOUT_ENABLE;
-		max8973_dcdc_ops.enable = regulator_enable_regmap;
-		max8973_dcdc_ops.disable = regulator_disable_regmap;
-		max8973_dcdc_ops.is_enabled = regulator_is_enabled_regmap;
+		pax_open_kernel();
+		*(void **)&max8973_dcdc_ops.enable = regulator_enable_regmap;
+		*(void **)&max8973_dcdc_ops.disable = regulator_disable_regmap;
+		*(void **)&max8973_dcdc_ops.is_enabled = regulator_is_enabled_regmap;
+		pax_close_kernel();
 	}
 
 	max->enable_external_control = pdata->enable_ext_control;
diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index 9891aec..beb3083 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -583,10 +583,12 @@ static int mc13892_regulator_probe(struct platform_device *pdev)
 	}
 	mc13xxx_unlock(mc13892);
 
-	mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
+	pax_open_kernel();
+	*(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
 		= mc13892_vcam_set_mode;
-	mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
+	*(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
 		= mc13892_vcam_get_mode;
+	pax_close_kernel();
 
 	mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
 					ARRAY_SIZE(mc13892_regulators),
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index cc5bea9..689f7d9 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -724,7 +724,9 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 	hpet_rtc_timer_init();
 
 	/* export at least the first block of NVRAM */
-	nvram.size = address_space - NVRAM_OFFSET;
+	pax_open_kernel();
+	*(size_t *)&nvram.size = address_space - NVRAM_OFFSET;
+	pax_close_kernel();
 	retval = sysfs_create_bin_file(&dev->kobj, &nvram);
 	if (retval < 0) {
 		dev_dbg(dev, "can't create nvram file? %d\n", retval);
diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
index d049393..bb20be0 100644
--- a/drivers/rtc/rtc-dev.c
+++ b/drivers/rtc/rtc-dev.c
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/rtc.h>
 #include <linux/sched.h>
+#include <linux/grsecurity.h>
 #include "rtc-core.h"
 
 static dev_t rtc_devt;
@@ -347,6 +348,8 @@ static long rtc_dev_ioctl(struct file *file,
 		if (copy_from_user(&tm, uarg, sizeof(tm)))
 			return -EFAULT;
 
+		gr_log_timechange();
+
 		return rtc_set_time(rtc, &tm);
 
 	case RTC_PIE_ON:
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 970a236..3613169 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -106,7 +106,7 @@ struct ds1307 {
 	u8			offset; /* register's offset */
 	u8			regs[11];
 	u16			nvram_offset;
-	struct bin_attribute	*nvram;
+	bin_attribute_no_const	*nvram;
 	enum ds_type		type;
 	unsigned long		flags;
 #define HAS_NVRAM	0		/* bit 0 == sysfs file active */
diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
index 130f29a..6179d03 100644
--- a/drivers/rtc/rtc-m48t59.c
+++ b/drivers/rtc/rtc-m48t59.c
@@ -482,7 +482,9 @@ static int m48t59_rtc_probe(struct platform_device *pdev)
 		goto out;
 	}
 
-	m48t59_nvram_attr.size = pdata->offset;
+	pax_open_kernel();
+	*(size_t *)&m48t59_nvram_attr.size = pdata->offset;
+	pax_close_kernel();
 
 	ret = sysfs_create_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr);
 	if (ret) {
diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
index e693af6..2e525b6 100644
--- a/drivers/scsi/bfa/bfa_fcpim.h
+++ b/drivers/scsi/bfa/bfa_fcpim.h
@@ -36,7 +36,7 @@ struct bfa_iotag_s {
 
 struct bfa_itn_s {
 	bfa_isr_func_t isr;
-};
+} __no_const;
 
 void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport,
 		void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m));
diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
index 23a90e7..9cf04ee 100644
--- a/drivers/scsi/bfa/bfa_ioc.h
+++ b/drivers/scsi/bfa/bfa_ioc.h
@@ -258,7 +258,7 @@ struct bfa_ioc_cbfn_s {
 	bfa_ioc_disable_cbfn_t	disable_cbfn;
 	bfa_ioc_hbfail_cbfn_t	hbfail_cbfn;
 	bfa_ioc_reset_cbfn_t	reset_cbfn;
-};
+} __no_const;
 
 /*
  * IOC event notification mechanism.
@@ -346,7 +346,7 @@ struct bfa_ioc_hwif_s {
 	void		(*ioc_sync_ack)		(struct bfa_ioc_s *ioc);
 	bfa_boolean_t	(*ioc_sync_complete)	(struct bfa_ioc_s *ioc);
 	bfa_boolean_t	(*ioc_lpu_read_stat)	(struct bfa_ioc_s *ioc);
-};
+} __no_const;
 
 /*
  * Queue element to wait for room in request queue. FIFO order is
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index df0c3c7..b00e1d0 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -42,7 +42,7 @@
 #include "scsi_logging.h"
 
 
-static atomic_t scsi_host_next_hn = ATOMIC_INIT(0);	/* host_no for next new host */
+static atomic_unchecked_t scsi_host_next_hn = ATOMIC_INIT(0);	/* host_no for next new host */
 
 
 static void scsi_host_cls_release(struct device *dev)
@@ -361,7 +361,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
 	 * subtract one because we increment first then return, but we need to
 	 * know what the next host number was before increment
 	 */
-	shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1;
+	shost->host_no = atomic_inc_return_unchecked(&scsi_host_next_hn) - 1;
 	shost->dma_channel = 0xff;
 
 	/* These three are default values which can be overridden */
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 7f4f790..b75b92a 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -554,7 +554,7 @@ static inline u32 next_command(struct ctlr_info *h, u8 q)
 	unsigned long flags;
 
 	if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
-		return h->access.command_completed(h, q);
+		return h->access->command_completed(h, q);
 
 	if ((rq->head[rq->current_entry] & 1) == rq->wraparound) {
 		a = rq->head[rq->current_entry];
@@ -3422,7 +3422,7 @@ static void start_io(struct ctlr_info *h)
 	while (!list_empty(&h->reqQ)) {
 		c = list_entry(h->reqQ.next, struct CommandList, list);
 		/* can't do anything if fifo is full */
-		if ((h->access.fifo_full(h))) {
+		if ((h->access->fifo_full(h))) {
 			dev_warn(&h->pdev->dev, "fifo full\n");
 			break;
 		}
@@ -3444,7 +3444,7 @@ static void start_io(struct ctlr_info *h)
 
 		/* Tell the controller execute command */
 		spin_unlock_irqrestore(&h->lock, flags);
-		h->access.submit_command(h, c);
+		h->access->submit_command(h, c);
 		spin_lock_irqsave(&h->lock, flags);
 	}
 	spin_unlock_irqrestore(&h->lock, flags);
@@ -3452,17 +3452,17 @@ static void start_io(struct ctlr_info *h)
 
 static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q)
 {
-	return h->access.command_completed(h, q);
+	return h->access->command_completed(h, q);
 }
 
 static inline bool interrupt_pending(struct ctlr_info *h)
 {
-	return h->access.intr_pending(h);
+	return h->access->intr_pending(h);
 }
 
 static inline long interrupt_not_for_us(struct ctlr_info *h)
 {
-	return (h->access.intr_pending(h) == 0) ||
+	return (h->access->intr_pending(h) == 0) ||
 		(h->interrupts_enabled == 0);
 }
 
@@ -4364,7 +4364,7 @@ static int hpsa_pci_init(struct ctlr_info *h)
 	if (prod_index < 0)
 		return -ENODEV;
 	h->product_name = products[prod_index].product_name;
-	h->access = *(products[prod_index].access);
+	h->access = products[prod_index].access;
 
 	pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
 			       PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
@@ -4646,7 +4646,7 @@ static void controller_lockup_detected(struct ctlr_info *h)
 
 	assert_spin_locked(&lockup_detector_lock);
 	remove_ctlr_from_lockup_detector_list(h);
-	h->access.set_intr_mask(h, HPSA_INTR_OFF);
+	h->access->set_intr_mask(h, HPSA_INTR_OFF);
 	spin_lock_irqsave(&h->lock, flags);
 	h->lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
 	spin_unlock_irqrestore(&h->lock, flags);
@@ -4823,7 +4823,7 @@ reinit_after_soft_reset:
 	}
 
 	/* make sure the board interrupts are off */
-	h->access.set_intr_mask(h, HPSA_INTR_OFF);
+	h->access->set_intr_mask(h, HPSA_INTR_OFF);
 
 	if (hpsa_request_irq(h, do_hpsa_intr_msi, do_hpsa_intr_intx))
 		goto clean2;
@@ -4857,7 +4857,7 @@ reinit_after_soft_reset:
 		 * fake ones to scoop up any residual completions.
 		 */
 		spin_lock_irqsave(&h->lock, flags);
-		h->access.set_intr_mask(h, HPSA_INTR_OFF);
+		h->access->set_intr_mask(h, HPSA_INTR_OFF);
 		spin_unlock_irqrestore(&h->lock, flags);
 		free_irqs(h);
 		rc = hpsa_request_irq(h, hpsa_msix_discard_completions,
@@ -4876,9 +4876,9 @@ reinit_after_soft_reset:
 		dev_info(&h->pdev->dev, "Board READY.\n");
 		dev_info(&h->pdev->dev,
 			"Waiting for stale completions to drain.\n");
-		h->access.set_intr_mask(h, HPSA_INTR_ON);
+		h->access->set_intr_mask(h, HPSA_INTR_ON);
 		msleep(10000);
-		h->access.set_intr_mask(h, HPSA_INTR_OFF);
+		h->access->set_intr_mask(h, HPSA_INTR_OFF);
 
 		rc = controller_reset_failed(h->cfgtable);
 		if (rc)
@@ -4899,7 +4899,7 @@ reinit_after_soft_reset:
 	}
 
 	/* Turn the interrupts on so we can service requests */
-	h->access.set_intr_mask(h, HPSA_INTR_ON);
+	h->access->set_intr_mask(h, HPSA_INTR_ON);
 
 	hpsa_hba_inquiry(h);
 	hpsa_register_scsi(h);	/* hook ourselves into SCSI subsystem */
@@ -4954,7 +4954,7 @@ static void hpsa_shutdown(struct pci_dev *pdev)
 	 * To write all data in the battery backed cache to disks
 	 */
 	hpsa_flush_cache(h);
-	h->access.set_intr_mask(h, HPSA_INTR_OFF);
+	h->access->set_intr_mask(h, HPSA_INTR_OFF);
 	hpsa_free_irqs_and_disable_msix(h);
 }
 
@@ -5122,7 +5122,7 @@ static void hpsa_enter_performant_mode(struct ctlr_info *h, u32 use_short_tags)
 		return;
 	}
 	/* Change the access methods to the performant access methods */
-	h->access = SA5_performant_access;
+	h->access = &SA5_performant_access;
 	h->transMethod = CFGTBL_Trans_Performant;
 }
 
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
index 9816479..c5d4e97 100644
--- a/drivers/scsi/hpsa.h
+++ b/drivers/scsi/hpsa.h
@@ -79,7 +79,7 @@ struct ctlr_info {
 	unsigned int msix_vector;
 	unsigned int msi_vector;
 	int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
-	struct access_method access;
+	struct access_method *access;
 
 	/* queue and queue Info */
 	struct list_head reqQ;
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index c772d8d..35c362c 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -100,12 +100,12 @@ struct fc_exch_mgr {
 	u16		pool_max_index;
 
 	struct {
-		atomic_t no_free_exch;
-		atomic_t no_free_exch_xid;
-		atomic_t xid_not_found;
-		atomic_t xid_busy;
-		atomic_t seq_not_found;
-		atomic_t non_bls_resp;
+		atomic_unchecked_t no_free_exch;
+		atomic_unchecked_t no_free_exch_xid;
+		atomic_unchecked_t xid_not_found;
+		atomic_unchecked_t xid_busy;
+		atomic_unchecked_t seq_not_found;
+		atomic_unchecked_t non_bls_resp;
 	} stats;
 };
 
@@ -725,7 +725,7 @@ static struct fc_exch *fc_exch_em_alloc(struct fc_lport *lport,
 	/* allocate memory for exchange */
 	ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC);
 	if (!ep) {
-		atomic_inc(&mp->stats.no_free_exch);
+		atomic_inc_unchecked(&mp->stats.no_free_exch);
 		goto out;
 	}
 	memset(ep, 0, sizeof(*ep));
@@ -786,7 +786,7 @@ out:
 	return ep;
 err:
 	spin_unlock_bh(&pool->lock);
-	atomic_inc(&mp->stats.no_free_exch_xid);
+	atomic_inc_unchecked(&mp->stats.no_free_exch_xid);
 	mempool_free(ep, mp->ep_pool);
 	return NULL;
 }
@@ -929,7 +929,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 		xid = ntohs(fh->fh_ox_id);	/* we originated exch */
 		ep = fc_exch_find(mp, xid);
 		if (!ep) {
-			atomic_inc(&mp->stats.xid_not_found);
+			atomic_inc_unchecked(&mp->stats.xid_not_found);
 			reject = FC_RJT_OX_ID;
 			goto out;
 		}
@@ -959,7 +959,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 		ep = fc_exch_find(mp, xid);
 		if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) {
 			if (ep) {
-				atomic_inc(&mp->stats.xid_busy);
+				atomic_inc_unchecked(&mp->stats.xid_busy);
 				reject = FC_RJT_RX_ID;
 				goto rel;
 			}
@@ -970,7 +970,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 			}
 			xid = ep->xid;	/* get our XID */
 		} else if (!ep) {
-			atomic_inc(&mp->stats.xid_not_found);
+			atomic_inc_unchecked(&mp->stats.xid_not_found);
 			reject = FC_RJT_RX_ID;	/* XID not found */
 			goto out;
 		}
@@ -987,7 +987,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 	} else {
 		sp = &ep->seq;
 		if (sp->id != fh->fh_seq_id) {
-			atomic_inc(&mp->stats.seq_not_found);
+			atomic_inc_unchecked(&mp->stats.seq_not_found);
 			if (f_ctl & FC_FC_END_SEQ) {
 				/*
 				 * Update sequence_id based on incoming last
@@ -1437,22 +1437,22 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 
 	ep = fc_exch_find(mp, ntohs(fh->fh_ox_id));
 	if (!ep) {
-		atomic_inc(&mp->stats.xid_not_found);
+		atomic_inc_unchecked(&mp->stats.xid_not_found);
 		goto out;
 	}
 	if (ep->esb_stat & ESB_ST_COMPLETE) {
-		atomic_inc(&mp->stats.xid_not_found);
+		atomic_inc_unchecked(&mp->stats.xid_not_found);
 		goto rel;
 	}
 	if (ep->rxid == FC_XID_UNKNOWN)
 		ep->rxid = ntohs(fh->fh_rx_id);
 	if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) {
-		atomic_inc(&mp->stats.xid_not_found);
+		atomic_inc_unchecked(&mp->stats.xid_not_found);
 		goto rel;
 	}
 	if (ep->did != ntoh24(fh->fh_s_id) &&
 	    ep->did != FC_FID_FLOGI) {
-		atomic_inc(&mp->stats.xid_not_found);
+		atomic_inc_unchecked(&mp->stats.xid_not_found);
 		goto rel;
 	}
 	sof = fr_sof(fp);
@@ -1461,7 +1461,7 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 		sp->ssb_stat |= SSB_ST_RESP;
 		sp->id = fh->fh_seq_id;
 	} else if (sp->id != fh->fh_seq_id) {
-		atomic_inc(&mp->stats.seq_not_found);
+		atomic_inc_unchecked(&mp->stats.seq_not_found);
 		goto rel;
 	}
 
@@ -1525,9 +1525,9 @@ static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 	sp = fc_seq_lookup_orig(mp, fp);	/* doesn't hold sequence */
 
 	if (!sp)
-		atomic_inc(&mp->stats.xid_not_found);
+		atomic_inc_unchecked(&mp->stats.xid_not_found);
 	else
-		atomic_inc(&mp->stats.non_bls_resp);
+		atomic_inc_unchecked(&mp->stats.non_bls_resp);
 
 	fc_frame_free(fp);
 }
@@ -2174,13 +2174,13 @@ void fc_exch_update_stats(struct fc_lport *lport)
 
 	list_for_each_entry(ema, &lport->ema_list, ema_list) {
 		mp = ema->mp;
-		st->fc_no_free_exch += atomic_read(&mp->stats.no_free_exch);
+		st->fc_no_free_exch += atomic_read_unchecked(&mp->stats.no_free_exch);
 		st->fc_no_free_exch_xid +=
-				atomic_read(&mp->stats.no_free_exch_xid);
-		st->fc_xid_not_found += atomic_read(&mp->stats.xid_not_found);
-		st->fc_xid_busy += atomic_read(&mp->stats.xid_busy);
-		st->fc_seq_not_found += atomic_read(&mp->stats.seq_not_found);
-		st->fc_non_bls_resp += atomic_read(&mp->stats.non_bls_resp);
+				atomic_read_unchecked(&mp->stats.no_free_exch_xid);
+		st->fc_xid_not_found += atomic_read_unchecked(&mp->stats.xid_not_found);
+		st->fc_xid_busy += atomic_read_unchecked(&mp->stats.xid_busy);
+		st->fc_seq_not_found += atomic_read_unchecked(&mp->stats.seq_not_found);
+		st->fc_non_bls_resp += atomic_read_unchecked(&mp->stats.non_bls_resp);
 	}
 }
 EXPORT_SYMBOL(fc_exch_update_stats);
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index bdb81cd..d3c7c2c 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -554,7 +554,7 @@ static struct ata_port_operations sas_sata_ops = {
 	.postreset		= ata_std_postreset,
 	.error_handler		= ata_std_error_handler,
 	.post_internal_cmd	= sas_ata_post_internal,
-	.qc_defer               = ata_std_qc_defer,
+	.qc_defer		= ata_std_qc_defer,
 	.qc_prep		= ata_noop_qc_prep,
 	.qc_issue		= sas_ata_qc_issue,
 	.qc_fill_rtf		= sas_ata_qc_fill_rtf,
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 7706c99..3b4fc0c 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -424,7 +424,7 @@ struct lpfc_vport {
 	struct dentry *debug_nodelist;
 	struct dentry *vport_debugfs_root;
 	struct lpfc_debugfs_trc *disc_trc;
-	atomic_t disc_trc_cnt;
+	atomic_unchecked_t disc_trc_cnt;
 #endif
 	uint8_t stat_data_enabled;
 	uint8_t stat_data_blocked;
@@ -853,8 +853,8 @@ struct lpfc_hba {
 	struct timer_list fabric_block_timer;
 	unsigned long bit_flags;
 #define	FABRIC_COMANDS_BLOCKED	0
-	atomic_t num_rsrc_err;
-	atomic_t num_cmd_success;
+	atomic_unchecked_t num_rsrc_err;
+	atomic_unchecked_t num_cmd_success;
 	unsigned long last_rsrc_error_time;
 	unsigned long last_ramp_down_time;
 	unsigned long last_ramp_up_time;
@@ -890,7 +890,7 @@ struct lpfc_hba {
 
 	struct dentry *debug_slow_ring_trc;
 	struct lpfc_debugfs_trc *slow_ring_trc;
-	atomic_t slow_ring_trc_cnt;
+	atomic_unchecked_t slow_ring_trc_cnt;
 	/* iDiag debugfs sub-directory */
 	struct dentry *idiag_root;
 	struct dentry *idiag_pci_cfg;
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index f63f5ff..de29189 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -106,7 +106,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
 
 #include <linux/debugfs.h>
 
-static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
+static atomic_unchecked_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
 static unsigned long lpfc_debugfs_start_time = 0L;
 
 /* iDiag */
@@ -147,7 +147,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
 	lpfc_debugfs_enable = 0;
 
 	len = 0;
-	index = (atomic_read(&vport->disc_trc_cnt) + 1) &
+	index = (atomic_read_unchecked(&vport->disc_trc_cnt) + 1) &
 		(lpfc_debugfs_max_disc_trc - 1);
 	for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
 		dtp = vport->disc_trc + i;
@@ -213,7 +213,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
 	lpfc_debugfs_enable = 0;
 
 	len = 0;
-	index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
+	index = (atomic_read_unchecked(&phba->slow_ring_trc_cnt) + 1) &
 		(lpfc_debugfs_max_slow_ring_trc - 1);
 	for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
 		dtp = phba->slow_ring_trc + i;
@@ -646,14 +646,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
 		!vport || !vport->disc_trc)
 		return;
 
-	index = atomic_inc_return(&vport->disc_trc_cnt) &
+	index = atomic_inc_return_unchecked(&vport->disc_trc_cnt) &
 		(lpfc_debugfs_max_disc_trc - 1);
 	dtp = vport->disc_trc + index;
 	dtp->fmt = fmt;
 	dtp->data1 = data1;
 	dtp->data2 = data2;
 	dtp->data3 = data3;
-	dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
+	dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
 	dtp->jif = jiffies;
 #endif
 	return;
@@ -684,14 +684,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
 		!phba || !phba->slow_ring_trc)
 		return;
 
-	index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
+	index = atomic_inc_return_unchecked(&phba->slow_ring_trc_cnt) &
 		(lpfc_debugfs_max_slow_ring_trc - 1);
 	dtp = phba->slow_ring_trc + index;
 	dtp->fmt = fmt;
 	dtp->data1 = data1;
 	dtp->data2 = data2;
 	dtp->data3 = data3;
-	dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
+	dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
 	dtp->jif = jiffies;
 #endif
 	return;
@@ -4182,7 +4182,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
 						 "slow_ring buffer\n");
 				goto debug_failed;
 			}
-			atomic_set(&phba->slow_ring_trc_cnt, 0);
+			atomic_set_unchecked(&phba->slow_ring_trc_cnt, 0);
 			memset(phba->slow_ring_trc, 0,
 				(sizeof(struct lpfc_debugfs_trc) *
 				lpfc_debugfs_max_slow_ring_trc));
@@ -4228,7 +4228,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
 				 "buffer\n");
 		goto debug_failed;
 	}
-	atomic_set(&vport->disc_trc_cnt, 0);
+	atomic_set_unchecked(&vport->disc_trc_cnt, 0);
 
 	snprintf(name, sizeof(name), "discovery_trace");
 	vport->debug_disc_trc =
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 314b4f6..7005d10 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -10551,8 +10551,10 @@ lpfc_init(void)
 			"misc_register returned with status %d", error);
 
 	if (lpfc_enable_npiv) {
-		lpfc_transport_functions.vport_create = lpfc_vport_create;
-		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
+		pax_open_kernel();
+		*(void **)&lpfc_transport_functions.vport_create = lpfc_vport_create;
+		*(void **)&lpfc_transport_functions.vport_delete = lpfc_vport_delete;
+		pax_close_kernel();
 	}
 	lpfc_transport_template =
 				fc_attach_transport(&lpfc_transport_functions);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 98af07c..7625fb5 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -325,7 +325,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hba *phba)
 	uint32_t evt_posted;
 
 	spin_lock_irqsave(&phba->hbalock, flags);
-	atomic_inc(&phba->num_rsrc_err);
+	atomic_inc_unchecked(&phba->num_rsrc_err);
 	phba->last_rsrc_error_time = jiffies;
 
 	if ((phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL) > jiffies) {
@@ -366,7 +366,7 @@ lpfc_rampup_queue_depth(struct lpfc_vport  *vport,
 	unsigned long flags;
 	struct lpfc_hba *phba = vport->phba;
 	uint32_t evt_posted;
-	atomic_inc(&phba->num_cmd_success);
+	atomic_inc_unchecked(&phba->num_cmd_success);
 
 	if (vport->cfg_lun_queue_depth <= queue_depth)
 		return;
@@ -410,8 +410,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
 	unsigned long num_rsrc_err, num_cmd_success;
 	int i;
 
-	num_rsrc_err = atomic_read(&phba->num_rsrc_err);
-	num_cmd_success = atomic_read(&phba->num_cmd_success);
+	num_rsrc_err = atomic_read_unchecked(&phba->num_rsrc_err);
+	num_cmd_success = atomic_read_unchecked(&phba->num_cmd_success);
 
 	/*
 	 * The error and success command counters are global per
@@ -439,8 +439,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
 			}
 		}
 	lpfc_destroy_vport_work_array(phba, vports);
-	atomic_set(&phba->num_rsrc_err, 0);
-	atomic_set(&phba->num_cmd_success, 0);
+	atomic_set_unchecked(&phba->num_rsrc_err, 0);
+	atomic_set_unchecked(&phba->num_cmd_success, 0);
 }
 
 /**
@@ -474,8 +474,8 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba)
 			}
 		}
 	lpfc_destroy_vport_work_array(phba, vports);
-	atomic_set(&phba->num_rsrc_err, 0);
-	atomic_set(&phba->num_cmd_success, 0);
+	atomic_set_unchecked(&phba->num_rsrc_err, 0);
+	atomic_set_unchecked(&phba->num_cmd_success, 0);
 }
 
 /**
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index b46f5e9..c4c4ccb 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -200,8 +200,8 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev)
 		res->scsi_dev = scsi_dev;
 		scsi_dev->hostdata = res;
 		res->change_detected = 0;
-		atomic_set(&res->read_failures, 0);
-		atomic_set(&res->write_failures, 0);
+		atomic_set_unchecked(&res->read_failures, 0);
+		atomic_set_unchecked(&res->write_failures, 0);
 		rc = 0;
 	}
 	spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags);
@@ -2676,9 +2676,9 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd)
 
 	/* If this was a SCSI read/write command keep count of errors */
 	if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_READ_CMD)
-		atomic_inc(&res->read_failures);
+		atomic_inc_unchecked(&res->read_failures);
 	else if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_WRITE_CMD)
-		atomic_inc(&res->write_failures);
+		atomic_inc_unchecked(&res->write_failures);
 
 	if (!RES_IS_GSCSI(res->cfg_entry) &&
 		masked_ioasc != PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR) {
@@ -3534,7 +3534,7 @@ static int pmcraid_queuecommand_lck(
 	 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
 	 * hrrq_id assigned here in queuecommand
 	 */
-	ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
+	ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
 			  pinstance->num_hrrq;
 	cmd->cmd_done = pmcraid_io_done;
 
@@ -3859,7 +3859,7 @@ static long pmcraid_ioctl_passthrough(
 	 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
 	 * hrrq_id assigned here in queuecommand
 	 */
-	ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
+	ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
 			  pinstance->num_hrrq;
 
 	if (request_size) {
@@ -4497,7 +4497,7 @@ static void pmcraid_worker_function(struct work_struct *workp)
 
 	pinstance = container_of(workp, struct pmcraid_instance, worker_q);
 	/* add resources only after host is added into system */
-	if (!atomic_read(&pinstance->expose_resources))
+	if (!atomic_read_unchecked(&pinstance->expose_resources))
 		return;
 
 	fw_version = be16_to_cpu(pinstance->inq_data->fw_version);
@@ -5324,8 +5324,8 @@ static int pmcraid_init_instance(struct pci_dev *pdev, struct Scsi_Host *host,
 	init_waitqueue_head(&pinstance->reset_wait_q);
 
 	atomic_set(&pinstance->outstanding_cmds, 0);
-	atomic_set(&pinstance->last_message_id, 0);
-	atomic_set(&pinstance->expose_resources, 0);
+	atomic_set_unchecked(&pinstance->last_message_id, 0);
+	atomic_set_unchecked(&pinstance->expose_resources, 0);
 
 	INIT_LIST_HEAD(&pinstance->free_res_q);
 	INIT_LIST_HEAD(&pinstance->used_res_q);
@@ -6038,7 +6038,7 @@ static int pmcraid_probe(struct pci_dev *pdev,
 	/* Schedule worker thread to handle CCN and take care of adding and
 	 * removing devices to OS
 	 */
-	atomic_set(&pinstance->expose_resources, 1);
+	atomic_set_unchecked(&pinstance->expose_resources, 1);
 	schedule_work(&pinstance->worker_q);
 	return rc;
 
diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h
index e1d150f..6c6df44 100644
--- a/drivers/scsi/pmcraid.h
+++ b/drivers/scsi/pmcraid.h
@@ -748,7 +748,7 @@ struct pmcraid_instance {
 	struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS];
 
 	/* Message id as filled in last fired IOARCB, used to identify HRRQ */
-	atomic_t last_message_id;
+	atomic_unchecked_t last_message_id;
 
 	/* configuration table */
 	struct pmcraid_config_table *cfg_table;
@@ -777,7 +777,7 @@ struct pmcraid_instance {
 	atomic_t outstanding_cmds;
 
 	/* should add/delete resources to mid-layer now ?*/
-	atomic_t expose_resources;
+	atomic_unchecked_t expose_resources;
 
 
 
@@ -813,8 +813,8 @@ struct pmcraid_resource_entry {
 		struct pmcraid_config_table_entry_ext cfg_entry_ext;
 	};
 	struct scsi_device *scsi_dev;	/* Link scsi_device structure */
-	atomic_t read_failures;		/* count of failed READ commands */
-	atomic_t write_failures;	/* count of failed WRITE commands */
+	atomic_unchecked_t read_failures;	/* count of failed READ commands */
+	atomic_unchecked_t write_failures;	/* count of failed WRITE commands */
 
 	/* To indicate add/delete/modify during CCN */
 	u8 change_detected;
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index b3db9dc..c3b1756 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1971,7 +1971,7 @@ qla24xx_vport_disable(struct fc_vport *fc_vport, bool disable)
 	return 0;
 }
 
-struct fc_function_template qla2xxx_transport_functions = {
+fc_function_template_no_const qla2xxx_transport_functions = {
 
 	.show_host_node_name = 1,
 	.show_host_port_name = 1,
@@ -2018,7 +2018,7 @@ struct fc_function_template qla2xxx_transport_functions = {
 	.bsg_timeout = qla24xx_bsg_timeout,
 };
 
-struct fc_function_template qla2xxx_transport_vport_functions = {
+fc_function_template_no_const qla2xxx_transport_vport_functions = {
 
 	.show_host_node_name = 1,
 	.show_host_port_name = 1,
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index b310fa9..b9b3944 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -523,8 +523,8 @@ extern void qla2x00_get_sym_node_name(scsi_qla_host_t *, uint8_t *);
 struct device_attribute;
 extern struct device_attribute *qla2x00_host_attrs[];
 struct fc_function_template;
-extern struct fc_function_template qla2xxx_transport_functions;
-extern struct fc_function_template qla2xxx_transport_vport_functions;
+extern fc_function_template_no_const qla2xxx_transport_functions;
+extern fc_function_template_no_const qla2xxx_transport_vport_functions;
 extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
 extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *);
 extern void qla2x00_init_host_attr(scsi_qla_host_t *);
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 2c6dd3d..e5ecd82 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1554,8 +1554,10 @@ qla2x00_config_dma_addressing(struct qla_hw_data *ha)
 		    !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
 			/* Ok, a 64bit DMA mask is applicable. */
 			ha->flags.enable_64bit_addressing = 1;
-			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
-			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
+			pax_open_kernel();
+			*(void **)&ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
+			*(void **)&ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
+			pax_close_kernel();
 			return;
 		}
 	}
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index 129f5dd..ade53e8 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -275,7 +275,7 @@ struct ddb_entry {
 					   * (4000 only) */
 	atomic_t relogin_timer;		  /* Max Time to wait for
 					   * relogin to complete */
-	atomic_t relogin_retry_count;	  /* Num of times relogin has been
+	atomic_unchecked_t relogin_retry_count;	  /* Num of times relogin has been
 					   * retried */
 	uint32_t default_time2wait;	  /* Default Min time between
 					   * relogins (+aens) */
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 6142729..b6a85c9 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -2622,12 +2622,12 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
 		 */
 		if (!iscsi_is_session_online(cls_sess)) {
 			/* Reset retry relogin timer */
-			atomic_inc(&ddb_entry->relogin_retry_count);
+			atomic_inc_unchecked(&ddb_entry->relogin_retry_count);
 			DEBUG2(ql4_printk(KERN_INFO, ha,
 				"%s: index[%d] relogin timed out-retrying"
 				" relogin (%d), retry (%d)\n", __func__,
 				ddb_entry->fw_ddb_index,
-				atomic_read(&ddb_entry->relogin_retry_count),
+				atomic_read_unchecked(&ddb_entry->relogin_retry_count),
 				ddb_entry->default_time2wait + 4));
 			set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
 			atomic_set(&ddb_entry->retry_relogin_timer,
@@ -4742,7 +4742,7 @@ static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
 
 	atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
 	atomic_set(&ddb_entry->relogin_timer, 0);
-	atomic_set(&ddb_entry->relogin_retry_count, 0);
+	atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0);
 	def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
 	ddb_entry->default_relogin_timeout =
 		(def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 2c0d0ec..4e8681a 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -661,7 +661,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
 	unsigned long timeout;
 	int rtn = 0;
 
-	atomic_inc(&cmd->device->iorequest_cnt);
+	atomic_inc_unchecked(&cmd->device->iorequest_cnt);
 
 	/* check if the device is still usable */
 	if (unlikely(cmd->device->sdev_state == SDEV_DEL)) {
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index c31187d..0ead8c3 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1459,7 +1459,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
 	shost = sdev->host;
 	scsi_init_cmd_errh(cmd);
 	cmd->result = DID_NO_CONNECT << 16;
-	atomic_inc(&cmd->device->iorequest_cnt);
+	atomic_inc_unchecked(&cmd->device->iorequest_cnt);
 
 	/*
 	 * SCSI request completion path will do scsi_device_unbusy(),
@@ -1485,9 +1485,9 @@ static void scsi_softirq_done(struct request *rq)
 
 	INIT_LIST_HEAD(&cmd->eh_entry);
 
-	atomic_inc(&cmd->device->iodone_cnt);
+	atomic_inc_unchecked(&cmd->device->iodone_cnt);
 	if (cmd->result)
-		atomic_inc(&cmd->device->ioerr_cnt);
+		atomic_inc_unchecked(&cmd->device->ioerr_cnt);
 
 	disposition = scsi_decide_disposition(cmd);
 	if (disposition != SUCCESS &&
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 931a7d9..0c2a754 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -658,7 +658,7 @@ show_iostat_##field(struct device *dev, struct device_attribute *attr,	\
 		    char *buf)						\
 {									\
 	struct scsi_device *sdev = to_scsi_device(dev);			\
-	unsigned long long count = atomic_read(&sdev->field);		\
+	unsigned long long count = atomic_read_unchecked(&sdev->field);	\
 	return snprintf(buf, 20, "0x%llx\n", count);			\
 }									\
 static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL)
diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c
index 84a1fdf..693b0d6 100644
--- a/drivers/scsi/scsi_tgt_lib.c
+++ b/drivers/scsi/scsi_tgt_lib.c
@@ -362,7 +362,7 @@ static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd,
 	int err;
 
 	dprintk("%lx %u\n", uaddr, len);
-	err = blk_rq_map_user(q, rq, NULL, (void *)uaddr, len, GFP_KERNEL);
+	err = blk_rq_map_user(q, rq, NULL, (void __user *)uaddr, len, GFP_KERNEL);
 	if (err) {
 		/*
 		 * TODO: need to fixup sg_tablesize, max_segment_size,
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index e894ca7..de9d7660 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -498,7 +498,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_class,
  * Netlink Infrastructure
  */
 
-static atomic_t fc_event_seq;
+static atomic_unchecked_t fc_event_seq;
 
 /**
  * fc_get_event_number - Obtain the next sequential FC event number
@@ -511,7 +511,7 @@ static atomic_t fc_event_seq;
 u32
 fc_get_event_number(void)
 {
-	return atomic_add_return(1, &fc_event_seq);
+	return atomic_add_return_unchecked(1, &fc_event_seq);
 }
 EXPORT_SYMBOL(fc_get_event_number);
 
@@ -659,7 +659,7 @@ static __init int fc_transport_init(void)
 {
 	int error;
 
-	atomic_set(&fc_event_seq, 0);
+	atomic_set_unchecked(&fc_event_seq, 0);
 
 	error = transport_class_register(&fc_host_class);
 	if (error)
@@ -849,7 +849,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val)
 	char *cp;
 
 	*val = simple_strtoul(buf, &cp, 0);
-	if ((*cp && (*cp != '\n')) || (*val < 0))
+	if (*cp && (*cp != '\n'))
 		return -EINVAL;
 	/*
 	 * Check for overflow; dev_loss_tmo is u32
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 0a74b97..fa8d648 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -79,7 +79,7 @@ struct iscsi_internal {
 	struct transport_container session_cont;
 };
 
-static atomic_t iscsi_session_nr; /* sysfs session id for next new session */
+static atomic_unchecked_t iscsi_session_nr; /* sysfs session id for next new session */
 static struct workqueue_struct *iscsi_eh_timer_workq;
 
 static DEFINE_IDA(iscsi_sess_ida);
@@ -1064,7 +1064,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
 	int err;
 
 	ihost = shost->shost_data;
-	session->sid = atomic_add_return(1, &iscsi_session_nr);
+	session->sid = atomic_add_return_unchecked(1, &iscsi_session_nr);
 
 	if (target_id == ISCSI_MAX_TARGET) {
 		id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL);
@@ -2955,7 +2955,7 @@ static __init int iscsi_transport_init(void)
 	printk(KERN_INFO "Loading iSCSI transport class v%s.\n",
 		ISCSI_TRANSPORT_VERSION);
 
-	atomic_set(&iscsi_session_nr, 0);
+	atomic_set_unchecked(&iscsi_session_nr, 0);
 
 	err = class_register(&iscsi_transport_class);
 	if (err)
diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
index f379c7f..e8fc69c 100644
--- a/drivers/scsi/scsi_transport_srp.c
+++ b/drivers/scsi/scsi_transport_srp.c
@@ -33,7 +33,7 @@
 #include "scsi_transport_srp_internal.h"
 
 struct srp_host_attrs {
-	atomic_t next_port_id;
+	atomic_unchecked_t next_port_id;
 };
 #define to_srp_host_attrs(host)	((struct srp_host_attrs *)(host)->shost_data)
 
@@ -61,7 +61,7 @@ static int srp_host_setup(struct transport_container *tc, struct device *dev,
 	struct Scsi_Host *shost = dev_to_shost(dev);
 	struct srp_host_attrs *srp_host = to_srp_host_attrs(shost);
 
-	atomic_set(&srp_host->next_port_id, 0);
+	atomic_set_unchecked(&srp_host->next_port_id, 0);
 	return 0;
 }
 
@@ -210,7 +210,7 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
 	memcpy(rport->port_id, ids->port_id, sizeof(rport->port_id));
 	rport->roles = ids->roles;
 
-	id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id);
+	id = atomic_inc_return_unchecked(&to_srp_host_attrs(shost)->next_port_id);
 	dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id);
 
 	transport_setup_device(&rport->dev);
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 82910cc..7c350ad 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2929,7 +2929,7 @@ static int sd_probe(struct device *dev)
 	sdkp->disk = gd;
 	sdkp->index = index;
 	atomic_set(&sdkp->openers, 0);
-	atomic_set(&sdkp->device->ioerr_cnt, 0);
+	atomic_set_unchecked(&sdkp->device->ioerr_cnt, 0);
 
 	if (!sdp->request_queue->rq_timeout) {
 		if (sdp->type != TYPE_MOD)
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 9f0c465..47194ee 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1101,7 +1101,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
 				       sdp->disk->disk_name,
 				       MKDEV(SCSI_GENERIC_MAJOR, sdp->index),
 				       NULL,
-				       (char *)arg);
+				       (char __user *)arg);
 	case BLKTRACESTART:
 		return blk_trace_startstop(sdp->device->request_queue, 1);
 	case BLKTRACESTOP:
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 004b10f..7c98d51 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1620,7 +1620,7 @@ int spi_bus_unlock(struct spi_master *master)
 EXPORT_SYMBOL_GPL(spi_bus_unlock);
 
 /* portable code must never pass more than 32 bytes */
-#define	SPI_BUFSIZ	max(32,SMP_CACHE_BYTES)
+#define	SPI_BUFSIZ	max(32UL,SMP_CACHE_BYTES)
 
 static u8	*buf;
 
diff --git a/drivers/staging/iio/iio_hwmon.c b/drivers/staging/iio/iio_hwmon.c
index 93af756..a4bc5bf 100644
--- a/drivers/staging/iio/iio_hwmon.c
+++ b/drivers/staging/iio/iio_hwmon.c
@@ -67,7 +67,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct iio_hwmon_state *st;
-	struct sensor_device_attribute *a;
+	sensor_device_attribute_no_const *a;
 	int ret, i;
 	int in_i = 1, temp_i = 1, curr_i = 1;
 	enum iio_chan_type type;
diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index 34afc16..ffe44dd 100644
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -421,11 +421,11 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
 				/* Increment RX stats for virtual ports */
 				if (work->ipprt >= CVMX_PIP_NUM_INPUT_PORTS) {
 #ifdef CONFIG_64BIT
-					atomic64_add(1, (atomic64_t *)&priv->stats.rx_packets);
-					atomic64_add(skb->len, (atomic64_t *)&priv->stats.rx_bytes);
+					atomic64_add_unchecked(1, (atomic64_unchecked_t *)&priv->stats.rx_packets);
+					atomic64_add_unchecked(skb->len, (atomic64_unchecked_t *)&priv->stats.rx_bytes);
 #else
-					atomic_add(1, (atomic_t *)&priv->stats.rx_packets);
-					atomic_add(skb->len, (atomic_t *)&priv->stats.rx_bytes);
+					atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_packets);
+					atomic_add_unchecked(skb->len, (atomic_unchecked_t *)&priv->stats.rx_bytes);
 #endif
 				}
 				netif_receive_skb(skb);
@@ -437,9 +437,9 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
 					   dev->name);
 				*/
 #ifdef CONFIG_64BIT
-				atomic64_add(1, (atomic64_t *)&priv->stats.rx_dropped);
+				atomic64_unchecked_add(1, (atomic64_unchecked_t *)&priv->stats.rx_dropped);
 #else
-				atomic_add(1, (atomic_t *)&priv->stats.rx_dropped);
+				atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_dropped);
 #endif
 				dev_kfree_skb_irq(skb);
 			}
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index c3a90e7..023619a 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -252,11 +252,11 @@ static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev)
 		 * since the RX tasklet also increments it.
 		 */
 #ifdef CONFIG_64BIT
-		atomic64_add(rx_status.dropped_packets,
-			     (atomic64_t *)&priv->stats.rx_dropped);
+		atomic64_add_unchecked(rx_status.dropped_packets,
+			     (atomic64_unchecked_t *)&priv->stats.rx_dropped);
 #else
-		atomic_add(rx_status.dropped_packets,
-			     (atomic_t *)&priv->stats.rx_dropped);
+		atomic_add_unchecked(rx_status.dropped_packets,
+			     (atomic_unchecked_t *)&priv->stats.rx_dropped);
 #endif
 	}
 
diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h
index dc23395..cf7e9b1 100644
--- a/drivers/staging/rtl8712/rtl871x_io.h
+++ b/drivers/staging/rtl8712/rtl871x_io.h
@@ -108,7 +108,7 @@ struct	_io_ops {
 			  u8 *pmem);
 	u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
 			   u8 *pmem);
-};
+} __no_const;
 
 struct io_req {
 	struct list_head list;
diff --git a/drivers/staging/sbe-2t3e3/netdev.c b/drivers/staging/sbe-2t3e3/netdev.c
index 1f5088b..0e59820 100644
--- a/drivers/staging/sbe-2t3e3/netdev.c
+++ b/drivers/staging/sbe-2t3e3/netdev.c
@@ -51,7 +51,7 @@ static int t3e3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	t3e3_if_config(sc, cmd_2t3e3, (char *)&param, &resp, &rlen);
 
 	if (rlen)
-		if (copy_to_user(data, &resp, rlen))
+		if (rlen > sizeof resp || copy_to_user(data, &resp, rlen))
 			return -EFAULT;
 
 	return 0;
diff --git a/drivers/staging/usbip/vhci.h b/drivers/staging/usbip/vhci.h
index 5dddc4d..34fcb2f 100644
--- a/drivers/staging/usbip/vhci.h
+++ b/drivers/staging/usbip/vhci.h
@@ -83,7 +83,7 @@ struct vhci_hcd {
 	unsigned resuming:1;
 	unsigned long re_timeout;
 
-	atomic_t seqnum;
+	atomic_unchecked_t seqnum;
 
 	/*
 	 * NOTE:
diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c
index f1ca084..7b5c0c3 100644
--- a/drivers/staging/usbip/vhci_hcd.c
+++ b/drivers/staging/usbip/vhci_hcd.c
@@ -441,7 +441,7 @@ static void vhci_tx_urb(struct urb *urb)
 
 	spin_lock(&vdev->priv_lock);
 
-	priv->seqnum = atomic_inc_return(&the_controller->seqnum);
+	priv->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
 	if (priv->seqnum == 0xffff)
 		dev_info(&urb->dev->dev, "seqnum max\n");
 
@@ -687,7 +687,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
 			return -ENOMEM;
 		}
 
-		unlink->seqnum = atomic_inc_return(&the_controller->seqnum);
+		unlink->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
 		if (unlink->seqnum == 0xffff)
 			pr_info("seqnum max\n");
 
@@ -891,7 +891,7 @@ static int vhci_start(struct usb_hcd *hcd)
 		vdev->rhport = rhport;
 	}
 
-	atomic_set(&vhci->seqnum, 0);
+	atomic_set_unchecked(&vhci->seqnum, 0);
 	spin_lock_init(&vhci->lock);
 
 	hcd->power_budget = 0; /* no limit */
diff --git a/drivers/staging/usbip/vhci_rx.c b/drivers/staging/usbip/vhci_rx.c
index faf8e60..c46f8ab 100644
--- a/drivers/staging/usbip/vhci_rx.c
+++ b/drivers/staging/usbip/vhci_rx.c
@@ -76,7 +76,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
 	if (!urb) {
 		pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum);
 		pr_info("max seqnum %d\n",
-			atomic_read(&the_controller->seqnum));
+			atomic_read_unchecked(&the_controller->seqnum));
 		usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
 		return;
 	}
diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
index 5f13890..36a044b 100644
--- a/drivers/staging/vt6655/hostap.c
+++ b/drivers/staging/vt6655/hostap.c
@@ -73,14 +73,13 @@ static int          msglevel                =MSG_LEVEL_INFO;
  *
  */
 
+static net_device_ops_no_const apdev_netdev_ops;
+
 static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
 {
     PSDevice apdev_priv;
 	struct net_device *dev = pDevice->dev;
 	int ret;
-	const struct net_device_ops apdev_netdev_ops = {
-		.ndo_start_xmit         = pDevice->tx_80211,
-	};
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
 
@@ -92,6 +91,8 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
     *apdev_priv = *pDevice;
 	memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN);
 
+	/* only half broken now */
+	apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211;
 	pDevice->apdev->netdev_ops = &apdev_netdev_ops;
 
 	pDevice->apdev->type = ARPHRD_IEEE80211;
diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
index bc5e9da..dacd556 100644
--- a/drivers/staging/vt6656/hostap.c
+++ b/drivers/staging/vt6656/hostap.c
@@ -60,14 +60,13 @@ static int          msglevel                =MSG_LEVEL_INFO;
  *
  */
 
+static net_device_ops_no_const apdev_netdev_ops;
+
 static int hostap_enable_hostapd(struct vnt_private *pDevice, int rtnl_locked)
 {
 	struct vnt_private *apdev_priv;
 	struct net_device *dev = pDevice->dev;
 	int ret;
-	const struct net_device_ops apdev_netdev_ops = {
-		.ndo_start_xmit = pDevice->tx_80211,
-	};
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
 
@@ -79,6 +78,8 @@ static int hostap_enable_hostapd(struct vnt_private *pDevice, int rtnl_locked)
     *apdev_priv = *pDevice;
 	memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN);
 
+	/* only half broken now */
+	apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211;
 	pDevice->apdev->netdev_ops = &apdev_netdev_ops;
 
 	pDevice->apdev->type = ARPHRD_IEEE80211;
diff --git a/drivers/staging/zcache/tmem.c b/drivers/staging/zcache/tmem.c
index a2b7e03..9ff4bbd 100644
--- a/drivers/staging/zcache/tmem.c
+++ b/drivers/staging/zcache/tmem.c
@@ -50,7 +50,7 @@
  * A tmem host implementation must use this function to register callbacks
  * for memory allocation.
  */
-static struct tmem_hostops tmem_hostops;
+static tmem_hostops_no_const tmem_hostops;
 
 static void tmem_objnode_tree_init(void);
 
@@ -64,7 +64,7 @@ void tmem_register_hostops(struct tmem_hostops *m)
  * A tmem host implementation must use this function to register
  * callbacks for a page-accessible memory (PAM) implementation.
  */
-static struct tmem_pamops tmem_pamops;
+static tmem_pamops_no_const tmem_pamops;
 
 void tmem_register_pamops(struct tmem_pamops *m)
 {
diff --git a/drivers/staging/zcache/tmem.h b/drivers/staging/zcache/tmem.h
index adbe5a8..d387359 100644
--- a/drivers/staging/zcache/tmem.h
+++ b/drivers/staging/zcache/tmem.h
@@ -226,6 +226,7 @@ struct tmem_pamops {
 	int (*replace_in_obj)(void *, struct tmem_obj *);
 #endif
 };
+typedef struct tmem_pamops __no_const tmem_pamops_no_const;
 extern void tmem_register_pamops(struct tmem_pamops *m);
 
 /* memory allocation methods provided by the host implementation */
@@ -235,6 +236,7 @@ struct tmem_hostops {
 	struct tmem_objnode *(*objnode_alloc)(struct tmem_pool *);
 	void (*objnode_free)(struct tmem_objnode *, struct tmem_pool *);
 };
+typedef struct tmem_hostops __no_const tmem_hostops_no_const;
 extern void tmem_register_hostops(struct tmem_hostops *m);
 
 /* core tmem accessor functions */
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index ca2be40..93ae910 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -712,9 +712,9 @@ static int iscsi_add_notunderstood_response(
 	}
 	INIT_LIST_HEAD(&extra_response->er_list);
 
-	strncpy(extra_response->key, key, strlen(key) + 1);
-	strncpy(extra_response->value, NOTUNDERSTOOD,
-			strlen(NOTUNDERSTOOD) + 1);
+	strlcpy(extra_response->key, key, sizeof(extra_response->key));
+	strlcpy(extra_response->value, NOTUNDERSTOOD,
+		sizeof(extra_response->value));
 
 	list_add_tail(&extra_response->er_list,
 			&param_list->extra_response_list);
@@ -1583,8 +1583,6 @@ int iscsi_decode_text_input(
 
 		if (phase & PHASE_SECURITY) {
 			if (iscsi_check_for_auth_key(key) > 0) {
-				char *tmpptr = key + strlen(key);
-				*tmpptr = '=';
 				kfree(tmpbuf);
 				return 1;
 			}
diff --git a/drivers/target/iscsi/iscsi_target_parameters.h b/drivers/target/iscsi/iscsi_target_parameters.h
index 1e1b750..2c536a0 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.h
+++ b/drivers/target/iscsi/iscsi_target_parameters.h
@@ -1,8 +1,10 @@
 #ifndef ISCSI_PARAMETERS_H
 #define ISCSI_PARAMETERS_H
 
+#include <scsi/iscsi_proto.h>
+
 struct iscsi_extra_response {
-	char key[64];
+	char key[KEY_MAXLEN];
 	char value[32];
 	struct list_head er_list;
 } ____cacheline_aligned;
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 2e4d655..fd72e68 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -1414,7 +1414,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
 	spin_lock_init(&dev->se_port_lock);
 	spin_lock_init(&dev->se_tmr_lock);
 	spin_lock_init(&dev->qf_cmd_lock);
-	atomic_set(&dev->dev_ordered_id, 0);
+	atomic_set_unchecked(&dev->dev_ordered_id, 0);
 	INIT_LIST_HEAD(&dev->t10_wwn.t10_vpd_list);
 	spin_lock_init(&dev->t10_wwn.t10_vpd_lock);
 	INIT_LIST_HEAD(&dev->t10_pr.registration_list);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 0d46276..f327cab5 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1080,7 +1080,7 @@ transport_check_alloc_task_attr(struct se_cmd *cmd)
 	 * Used to determine when ORDERED commands should go from
 	 * Dormant to Active status.
 	 */
-	cmd->se_ordered_id = atomic_inc_return(&dev->dev_ordered_id);
+	cmd->se_ordered_id = atomic_inc_return_unchecked(&dev->dev_ordered_id);
 	smp_mb__after_atomic_inc();
 	pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n",
 			cmd->se_ordered_id, cmd->sam_task_attr,
diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
index 345bd0e..61d5375 100644
--- a/drivers/tty/cyclades.c
+++ b/drivers/tty/cyclades.c
@@ -1576,10 +1576,10 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
 	printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
 			info->port.count);
 #endif
-	info->port.count++;
+	atomic_inc(&info->port.count);
 #ifdef CY_DEBUG_COUNT
 	printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
-		current->pid, info->port.count);
+		current->pid, atomic_read(&info->port.count));
 #endif
 
 	/*
@@ -3978,7 +3978,7 @@ static int cyclades_proc_show(struct seq_file *m, void *v)
 		for (j = 0; j < cy_card[i].nports; j++) {
 			info = &cy_card[i].ports[j];
 
-			if (info->port.count) {
+			if (atomic_read(&info->port.count)) {
 				/* XXX is the ldisc num worth this? */
 				struct tty_struct *tty;
 				struct tty_ldisc *ld;
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index eb255e8..f637a57 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -338,7 +338,7 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
 
 	spin_lock_irqsave(&hp->port.lock, flags);
 	/* Check and then increment for fast path open. */
-	if (hp->port.count++ > 0) {
+	if (atomic_inc_return(&hp->port.count) > 1) {
 		spin_unlock_irqrestore(&hp->port.lock, flags);
 		hvc_kick();
 		return 0;
@@ -388,7 +388,7 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
 
 	spin_lock_irqsave(&hp->port.lock, flags);
 
-	if (--hp->port.count == 0) {
+	if (atomic_dec_return(&hp->port.count) == 0) {
 		spin_unlock_irqrestore(&hp->port.lock, flags);
 		/* We are done with the tty pointer now. */
 		tty_port_tty_set(&hp->port, NULL);
@@ -406,9 +406,9 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
 		 */
 		tty_wait_until_sent_from_close(tty, HVC_CLOSE_WAIT);
 	} else {
-		if (hp->port.count < 0)
+		if (atomic_read(&hp->port.count) < 0)
 			printk(KERN_ERR "hvc_close %X: oops, count is %d\n",
-				hp->vtermno, hp->port.count);
+				hp->vtermno, atomic_read(&hp->port.count));
 		spin_unlock_irqrestore(&hp->port.lock, flags);
 	}
 }
@@ -438,12 +438,12 @@ static void hvc_hangup(struct tty_struct *tty)
 	 * open->hangup case this can be called after the final close so prevent
 	 * that from happening for now.
 	 */
-	if (hp->port.count <= 0) {
+	if (atomic_read(&hp->port.count) <= 0) {
 		spin_unlock_irqrestore(&hp->port.lock, flags);
 		return;
 	}
 
-	hp->port.count = 0;
+	atomic_set(&hp->port.count, 0);
 	spin_unlock_irqrestore(&hp->port.lock, flags);
 	tty_port_tty_set(&hp->port, NULL);
 
@@ -491,7 +491,7 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
 		return -EPIPE;
 
 	/* FIXME what's this (unprotected) check for? */
-	if (hp->port.count <= 0)
+	if (atomic_read(&hp->port.count) <= 0)
 		return -EIO;
 
 	spin_lock_irqsave(&hp->lock, flags);
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index 81e939e..95ead10 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -83,6 +83,7 @@
 #include <asm/hvcserver.h>
 #include <asm/uaccess.h>
 #include <asm/vio.h>
+#include <asm/local.h>
 
 /*
  * 1.3.0 -> 1.3.1 In hvcs_open memset(..,0x00,..) instead of memset(..,0x3F,00).
@@ -416,7 +417,7 @@ static ssize_t hvcs_vterm_state_store(struct device *dev, struct device_attribut
 
 	spin_lock_irqsave(&hvcsd->lock, flags);
 
-	if (hvcsd->port.count > 0) {
+	if (atomic_read(&hvcsd->port.count) > 0) {
 		spin_unlock_irqrestore(&hvcsd->lock, flags);
 		printk(KERN_INFO "HVCS: vterm state unchanged.  "
 				"The hvcs device node is still in use.\n");
@@ -1127,7 +1128,7 @@ static int hvcs_install(struct tty_driver *driver, struct tty_struct *tty)
 		}
 	}
 
-	hvcsd->port.count = 0;
+	atomic_set(&hvcsd->port.count, 0);
 	hvcsd->port.tty = tty;
 	tty->driver_data = hvcsd;
 
@@ -1180,7 +1181,7 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
 	unsigned long flags;
 
 	spin_lock_irqsave(&hvcsd->lock, flags);
-	hvcsd->port.count++;
+	atomic_inc(&hvcsd->port.count);
 	hvcsd->todo_mask |= HVCS_SCHED_READ;
 	spin_unlock_irqrestore(&hvcsd->lock, flags);
 
@@ -1216,7 +1217,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
 	hvcsd = tty->driver_data;
 
 	spin_lock_irqsave(&hvcsd->lock, flags);
-	if (--hvcsd->port.count == 0) {
+	if (atomic_dec_and_test(&hvcsd->port.count)) {
 
 		vio_disable_interrupts(hvcsd->vdev);
 
@@ -1241,10 +1242,10 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
 
 		free_irq(irq, hvcsd);
 		return;
-	} else if (hvcsd->port.count < 0) {
+	} else if (atomic_read(&hvcsd->port.count) < 0) {
 		printk(KERN_ERR "HVCS: vty-server@%X open_count: %d"
 				" is missmanaged.\n",
-		hvcsd->vdev->unit_address, hvcsd->port.count);
+		hvcsd->vdev->unit_address, atomic_read(&hvcsd->port.count));
 	}
 
 	spin_unlock_irqrestore(&hvcsd->lock, flags);
@@ -1266,7 +1267,7 @@ static void hvcs_hangup(struct tty_struct * tty)
 
 	spin_lock_irqsave(&hvcsd->lock, flags);
 	/* Preserve this so that we know how many kref refs to put */
-	temp_open_count = hvcsd->port.count;
+	temp_open_count = atomic_read(&hvcsd->port.count);
 
 	/*
 	 * Don't kref put inside the spinlock because the destruction
@@ -1281,7 +1282,7 @@ static void hvcs_hangup(struct tty_struct * tty)
 	tty->driver_data = NULL;
 	hvcsd->port.tty = NULL;
 
-	hvcsd->port.count = 0;
+	atomic_set(&hvcsd->port.count, 0);
 
 	/* This will drop any buffered data on the floor which is OK in a hangup
 	 * scenario. */
@@ -1352,7 +1353,7 @@ static int hvcs_write(struct tty_struct *tty,
 	 * the middle of a write operation?  This is a crummy place to do this
 	 * but we want to keep it all in the spinlock.
 	 */
-	if (hvcsd->port.count <= 0) {
+	if (atomic_read(&hvcsd->port.count) <= 0) {
 		spin_unlock_irqrestore(&hvcsd->lock, flags);
 		return -ENODEV;
 	}
@@ -1426,7 +1427,7 @@ static int hvcs_write_room(struct tty_struct *tty)
 {
 	struct hvcs_struct *hvcsd = tty->driver_data;
 
-	if (!hvcsd || hvcsd->port.count <= 0)
+	if (!hvcsd || atomic_read(&hvcsd->port.count) <= 0)
 		return 0;
 
 	return HVCS_BUFF_LEN - hvcsd->chars_in_buffer;
diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
index 8fd72ff..34a0bed 100644
--- a/drivers/tty/ipwireless/tty.c
+++ b/drivers/tty/ipwireless/tty.c
@@ -29,6 +29,7 @@
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
 #include <linux/uaccess.h>
+#include <asm/local.h>
 
 #include "tty.h"
 #include "network.h"
@@ -99,10 +100,10 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
 		mutex_unlock(&tty->ipw_tty_mutex);
 		return -ENODEV;
 	}
-	if (tty->port.count == 0)
+	if (atomic_read(&tty->port.count) == 0)
 		tty->tx_bytes_queued = 0;
 
-	tty->port.count++;
+	atomic_inc(&tty->port.count);
 
 	tty->port.tty = linux_tty;
 	linux_tty->driver_data = tty;
@@ -118,9 +119,7 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
 
 static void do_ipw_close(struct ipw_tty *tty)
 {
-	tty->port.count--;
-
-	if (tty->port.count == 0) {
+	if (atomic_dec_return(&tty->port.count) == 0) {
 		struct tty_struct *linux_tty = tty->port.tty;
 
 		if (linux_tty != NULL) {
@@ -141,7 +140,7 @@ static void ipw_hangup(struct tty_struct *linux_tty)
 		return;
 
 	mutex_lock(&tty->ipw_tty_mutex);
-	if (tty->port.count == 0) {
+	if (atomic_read(&tty->port.count) == 0) {
 		mutex_unlock(&tty->ipw_tty_mutex);
 		return;
 	}
@@ -164,7 +163,7 @@ void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
 
 	mutex_lock(&tty->ipw_tty_mutex);
 
-	if (!tty->port.count) {
+	if (!atomic_read(&tty->port.count)) {
 		mutex_unlock(&tty->ipw_tty_mutex);
 		return;
 	}
@@ -206,7 +205,7 @@ static int ipw_write(struct tty_struct *linux_tty,
 		return -ENODEV;
 
 	mutex_lock(&tty->ipw_tty_mutex);
-	if (!tty->port.count) {
+	if (!atomic_read(&tty->port.count)) {
 		mutex_unlock(&tty->ipw_tty_mutex);
 		return -EINVAL;
 	}
@@ -246,7 +245,7 @@ static int ipw_write_room(struct tty_struct *linux_tty)
 	if (!tty)
 		return -ENODEV;
 
-	if (!tty->port.count)
+	if (!atomic_read(&tty->port.count))
 		return -EINVAL;
 
 	room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
@@ -288,7 +287,7 @@ static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
 	if (!tty)
 		return 0;
 
-	if (!tty->port.count)
+	if (!atomic_read(&tty->port.count))
 		return 0;
 
 	return tty->tx_bytes_queued;
@@ -369,7 +368,7 @@ static int ipw_tiocmget(struct tty_struct *linux_tty)
 	if (!tty)
 		return -ENODEV;
 
-	if (!tty->port.count)
+	if (!atomic_read(&tty->port.count))
 		return -EINVAL;
 
 	return get_control_lines(tty);
@@ -385,7 +384,7 @@ ipw_tiocmset(struct tty_struct *linux_tty,
 	if (!tty)
 		return -ENODEV;
 
-	if (!tty->port.count)
+	if (!atomic_read(&tty->port.count))
 		return -EINVAL;
 
 	return set_control_lines(tty, set, clear);
@@ -399,7 +398,7 @@ static int ipw_ioctl(struct tty_struct *linux_tty,
 	if (!tty)
 		return -ENODEV;
 
-	if (!tty->port.count)
+	if (!atomic_read(&tty->port.count))
 		return -EINVAL;
 
 	/* FIXME: Exactly how is the tty object locked here .. */
@@ -555,7 +554,7 @@ void ipwireless_tty_free(struct ipw_tty *tty)
 				 * are gone */
 				mutex_lock(&ttyj->ipw_tty_mutex);
 			}
-			while (ttyj->port.count)
+			while (atomic_read(&ttyj->port.count))
 				do_ipw_close(ttyj);
 			ipwireless_disassociate_network_ttys(network,
 							     ttyj->channel_idx);
diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
index adeac25..787a0a1 100644
--- a/drivers/tty/moxa.c
+++ b/drivers/tty/moxa.c
@@ -1193,7 +1193,7 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
 	}
 
 	ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
-	ch->port.count++;
+	atomic_inc(&ch->port.count);
 	tty->driver_data = ch;
 	tty_port_tty_set(&ch->port, tty);
 	mutex_lock(&ch->port.mutex);
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 4a43ef5d7..aa71f27 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -1636,7 +1636,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
 	spin_lock_init(&dlci->lock);
 	mutex_init(&dlci->mutex);
 	dlci->fifo = &dlci->_fifo;
-	if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL) < 0) {
+	if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL)) {
 		kfree(dlci);
 		return NULL;
 	}
@@ -2936,7 +2936,7 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
 	struct gsm_dlci *dlci = tty->driver_data;
 	struct tty_port *port = &dlci->port;
 
-	port->count++;
+	atomic_inc(&port->count);
 	dlci_get(dlci);
 	dlci_get(dlci->gsm->dlci[0]);
 	mux_get(dlci->gsm);
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 05e72be..67f6a0f 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2197,6 +2197,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ops *ops)
 {
 	*ops = tty_ldisc_N_TTY;
 	ops->owner = NULL;
-	ops->refcount = ops->flags = 0;
+	atomic_set(&ops->refcount, 0);
+	ops->flags = 0;
 }
 EXPORT_SYMBOL_GPL(n_tty_inherit_ops);
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 125e0fd..8c50690 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -800,8 +800,10 @@ static void __init unix98_pty_init(void)
 		panic("Couldn't register Unix98 pts driver");
 
 	/* Now create the /dev/ptmx special device */
+	pax_open_kernel();
 	tty_default_fops(&ptmx_fops);
-	ptmx_fops.open = ptmx_open;
+	*(void **)&ptmx_fops.open = ptmx_open;
+	pax_close_kernel();
 
 	cdev_init(&ptmx_cdev, &ptmx_fops);
 	if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) ||
diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
index 1d27003..959f452 100644
--- a/drivers/tty/rocket.c
+++ b/drivers/tty/rocket.c
@@ -923,7 +923,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 	tty->driver_data = info;
 	tty_port_tty_set(port, tty);
 
-	if (port->count++ == 0) {
+	if (atomic_inc_return(&port->count) == 1) {
 		atomic_inc(&rp_num_ports_open);
 
 #ifdef ROCKET_DEBUG_OPEN
@@ -932,7 +932,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 #endif
 	}
 #ifdef ROCKET_DEBUG_OPEN
-	printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
+	printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, atomic-read(&info->port.count));
 #endif
 
 	/*
@@ -1527,7 +1527,7 @@ static void rp_hangup(struct tty_struct *tty)
 		spin_unlock_irqrestore(&info->port.lock, flags);
 		return;
 	}
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		atomic_dec(&rp_num_ports_open);
 	clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
 	spin_unlock_irqrestore(&info->port.lock, flags);
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index 1002054..dd644a8 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -24,8 +24,9 @@
 #define MAX_CONFIG_LEN		40
 
 static struct kgdb_io		kgdboc_io_ops;
+static struct kgdb_io		kgdboc_io_ops_console;
 
-/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */
+/* -1 = init not run yet, 0 = unconfigured, 1/2 = configured. */
 static int configured		= -1;
 
 static char config[MAX_CONFIG_LEN];
@@ -151,6 +152,8 @@ static void cleanup_kgdboc(void)
 	kgdboc_unregister_kbd();
 	if (configured == 1)
 		kgdb_unregister_io_module(&kgdboc_io_ops);
+	else if (configured == 2)
+		kgdb_unregister_io_module(&kgdboc_io_ops_console);
 }
 
 static int configure_kgdboc(void)
@@ -160,13 +163,13 @@ static int configure_kgdboc(void)
 	int err;
 	char *cptr = config;
 	struct console *cons;
+	int is_console = 0;
 
 	err = kgdboc_option_setup(config);
 	if (err || !strlen(config) || isspace(config[0]))
 		goto noconfig;
 
 	err = -ENODEV;
-	kgdboc_io_ops.is_console = 0;
 	kgdb_tty_driver = NULL;
 
 	kgdboc_use_kms = 0;
@@ -187,7 +190,7 @@ static int configure_kgdboc(void)
 		int idx;
 		if (cons->device && cons->device(cons, &idx) == p &&
 		    idx == tty_line) {
-			kgdboc_io_ops.is_console = 1;
+			is_console = 1;
 			break;
 		}
 		cons = cons->next;
@@ -197,7 +200,13 @@ static int configure_kgdboc(void)
 	kgdb_tty_line = tty_line;
 
 do_register:
-	err = kgdb_register_io_module(&kgdboc_io_ops);
+	if (is_console) {
+		err = kgdb_register_io_module(&kgdboc_io_ops_console);
+		configured = 2;
+	} else {
+		err = kgdb_register_io_module(&kgdboc_io_ops);
+		configured = 1;
+	}
 	if (err)
 		goto noconfig;
 
@@ -205,8 +214,6 @@ do_register:
 	if (err)
 		goto nmi_con_failed;
 
-	configured = 1;
-
 	return 0;
 
 nmi_con_failed:
@@ -223,7 +230,7 @@ noconfig:
 static int __init init_kgdboc(void)
 {
 	/* Already configured? */
-	if (configured == 1)
+	if (configured >= 1)
 		return 0;
 
 	return configure_kgdboc();
@@ -272,7 +279,7 @@ static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
 	if (config[len - 1] == '\n')
 		config[len - 1] = '\0';
 
-	if (configured == 1)
+	if (configured >= 1)
 		cleanup_kgdboc();
 
 	/* Go and configure with the new params. */
@@ -312,6 +319,15 @@ static struct kgdb_io kgdboc_io_ops = {
 	.post_exception		= kgdboc_post_exp_handler,
 };
 
+static struct kgdb_io kgdboc_io_ops_console = {
+	.name			= "kgdboc",
+	.read_char		= kgdboc_get_char,
+	.write_char		= kgdboc_put_char,
+	.pre_exception		= kgdboc_pre_exp_handler,
+	.post_exception		= kgdboc_post_exp_handler,
+	.is_console		= 1
+};
+
 #ifdef CONFIG_KGDB_SERIAL_CONSOLE
 /* This is only available if kgdboc is a built in for early debugging */
 static int __init kgdboc_early_init(char *opt)
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 2769a38..f3dbe48 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -451,11 +451,16 @@ static void s3c24xx_serial_shutdown(struct uart_port *port)
 	}
 }
 
+static int s3c64xx_serial_startup(struct uart_port *port);
 static int s3c24xx_serial_startup(struct uart_port *port)
 {
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
 	int ret;
 
+	/* Startup sequence is different for s3c64xx and higher SoC's */
+	if (s3c24xx_serial_has_interrupt_mask(port))
+		return s3c64xx_serial_startup(port);
+
 	dbg("s3c24xx_serial_startup: port=%p (%08lx,%p)\n",
 	    port->mapbase, port->membase);
 
@@ -1120,10 +1125,6 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
 	/* setup info for port */
 	port->dev	= &platdev->dev;
 
-	/* Startup sequence is different for s3c64xx and higher SoC's */
-	if (s3c24xx_serial_has_interrupt_mask(port))
-		s3c24xx_serial_ops.startup = s3c64xx_serial_startup;
-
 	port->uartclk = 1;
 
 	if (cfg->uart_flags & UPF_CONS_FLOW) {
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 8fbb6d2..822a9e6 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1454,7 +1454,7 @@ static void uart_hangup(struct tty_struct *tty)
 		uart_flush_buffer(tty);
 		uart_shutdown(tty, state);
 		spin_lock_irqsave(&port->lock, flags);
-		port->count = 0;
+		atomic_set(&port->count, 0);
 		clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
 		spin_unlock_irqrestore(&port->lock, flags);
 		tty_port_tty_set(port, NULL);
@@ -1550,7 +1550,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
 		goto end;
 	}
 
-	port->count++;
+	atomic_inc(&port->count);
 	if (!state->uart_port || state->uart_port->flags & UPF_DEAD) {
 		retval = -ENXIO;
 		goto err_dec_count;
@@ -1578,7 +1578,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
 	/*
 	 * Make sure the device is in D0 state.
 	 */
-	if (port->count == 1)
+	if (atomic_read(&port->count) == 1)
 		uart_change_pm(state, UART_PM_STATE_ON);
 
 	/*
@@ -1596,7 +1596,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
 end:
 	return retval;
 err_dec_count:
-	port->count--;
+	atomic_inc(&port->count);
 	mutex_unlock(&port->mutex);
 	goto end;
 }
diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index 8983276..72a4090 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -3093,7 +3093,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
 	
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->port.count);
+			 __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
 
 	if (tty_port_close_start(&info->port, tty, filp) == 0)			 
 		goto cleanup;
@@ -3111,7 +3111,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
 cleanup:			
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
-			tty->driver->name, info->port.count);
+			tty->driver->name, atomic_read(&info->port.count));
 			
 }	/* end of mgsl_close() */
 
@@ -3210,8 +3210,8 @@ static void mgsl_hangup(struct tty_struct *tty)
 
 	mgsl_flush_buffer(tty);
 	shutdown(info);
-	
-	info->port.count = 0;	
+
+	atomic_set(&info->port.count, 0);
 	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
 	info->port.tty = NULL;
 
@@ -3300,12 +3300,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):block_til_ready before block on %s count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
+			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 
 	spin_lock_irqsave(&info->irq_spinlock, flags);
 	if (!tty_hung_up_p(filp)) {
 		extra_count = true;
-		port->count--;
+		atomic_dec(&port->count);
 	}
 	spin_unlock_irqrestore(&info->irq_spinlock, flags);
 	port->blocked_open++;
@@ -3334,7 +3334,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 		
 		if (debug_level >= DEBUG_LEVEL_INFO)
 			printk("%s(%d):block_til_ready blocking on %s count=%d\n",
-				 __FILE__,__LINE__, tty->driver->name, port->count );
+				 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 				 
 		tty_unlock(tty);
 		schedule();
@@ -3346,12 +3346,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	
 	/* FIXME: Racy on hangup during close wait */
 	if (extra_count)
-		port->count++;
+		atomic_inc(&port->count);
 	port->blocked_open--;
 	
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
+			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 			 
 	if (!retval)
 		port->flags |= ASYNC_NORMAL_ACTIVE;
@@ -3403,7 +3403,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
 		
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
-			 __FILE__,__LINE__,tty->driver->name, info->port.count);
+			 __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
 
 	/* If port is closing, signal caller to try again */
 	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
@@ -3422,10 +3422,10 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
 		spin_unlock_irqrestore(&info->netlock, flags);
 		goto cleanup;
 	}
-	info->port.count++;
+	atomic_inc(&info->port.count);
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (info->port.count == 1) {
+	if (atomic_read(&info->port.count) == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info);
 		if (retval < 0)
@@ -3449,8 +3449,8 @@ cleanup:
 	if (retval) {
 		if (tty->count == 1)
 			info->port.tty = NULL; /* tty layer will release tty struct */
-		if(info->port.count)
-			info->port.count--;
+		if (atomic_read(&info->port.count))
+			atomic_dec(&info->port.count);
 	}
 	
 	return retval;
@@ -7668,7 +7668,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	switch (encoding)
@@ -7763,7 +7763,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
+	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -7849,7 +7849,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index aa9eece..d8baaec 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -670,7 +670,7 @@ static int open(struct tty_struct *tty, struct file *filp)
 	tty->driver_data = info;
 	info->port.tty = tty;
 
-	DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count));
+	DBGINFO(("%s open, old ref count = %d\n", info->device_name, atomic_read(&info->port.count)));
 
 	/* If port is closing, signal caller to try again */
 	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
@@ -691,10 +691,10 @@ static int open(struct tty_struct *tty, struct file *filp)
 		mutex_unlock(&info->port.mutex);
 		goto cleanup;
 	}
-	info->port.count++;
+	atomic_inc(&info->port.count);
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (info->port.count == 1) {
+	if (atomic_read(&info->port.count) == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info);
 		if (retval < 0) {
@@ -715,8 +715,8 @@ cleanup:
 	if (retval) {
 		if (tty->count == 1)
 			info->port.tty = NULL; /* tty layer will release tty struct */
-		if(info->port.count)
-			info->port.count--;
+		if(atomic_read(&info->port.count))
+			atomic_dec(&info->port.count);
 	}
 
 	DBGINFO(("%s open rc=%d\n", info->device_name, retval));
@@ -729,7 +729,7 @@ static void close(struct tty_struct *tty, struct file *filp)
 
 	if (sanity_check(info, tty->name, "close"))
 		return;
-	DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count));
+	DBGINFO(("%s close entry, count=%d\n", info->device_name, atomic_read(&info->port.count)));
 
 	if (tty_port_close_start(&info->port, tty, filp) == 0)
 		goto cleanup;
@@ -746,7 +746,7 @@ static void close(struct tty_struct *tty, struct file *filp)
 	tty_port_close_end(&info->port, tty);
 	info->port.tty = NULL;
 cleanup:
-	DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count));
+	DBGINFO(("%s close exit, count=%d\n", tty->driver->name, atomic_read(&info->port.count)));
 }
 
 static void hangup(struct tty_struct *tty)
@@ -764,7 +764,7 @@ static void hangup(struct tty_struct *tty)
 	shutdown(info);
 
 	spin_lock_irqsave(&info->port.lock, flags);
-	info->port.count = 0;
+	atomic_set(&info->port.count, 0);
 	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
 	info->port.tty = NULL;
 	spin_unlock_irqrestore(&info->port.lock, flags);
@@ -1449,7 +1449,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	DBGINFO(("%s hdlcdev_attach\n", info->device_name));
@@ -1544,7 +1544,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
+	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
 		DBGINFO(("%s hdlc_open busy\n", dev->name));
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -1629,7 +1629,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	DBGINFO(("%s hdlcdev_ioctl\n", dev->name));
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
@@ -2413,7 +2413,7 @@ static irqreturn_t slgt_interrupt(int dummy, void *dev_id)
 		if (port == NULL)
 			continue;
 		spin_lock(&port->lock);
-		if ((port->port.count || port->netcount) &&
+		if ((atomic_read(&port->port.count) || port->netcount) &&
 		    port->pending_bh && !port->bh_running &&
 		    !port->bh_requested) {
 			DBGISR(("%s bh queued\n", port->device_name));
@@ -3302,7 +3302,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	spin_lock_irqsave(&info->lock, flags);
 	if (!tty_hung_up_p(filp)) {
 		extra_count = true;
-		port->count--;
+		atomic_dec(&port->count);
 	}
 	spin_unlock_irqrestore(&info->lock, flags);
 	port->blocked_open++;
@@ -3339,7 +3339,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	remove_wait_queue(&port->open_wait, &wait);
 
 	if (extra_count)
-		port->count++;
+		atomic_inc(&port->count);
 	port->blocked_open--;
 
 	if (!retval)
diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
index 6d5780c..aa4d8cd 100644
--- a/drivers/tty/synclinkmp.c
+++ b/drivers/tty/synclinkmp.c
@@ -750,7 +750,7 @@ static int open(struct tty_struct *tty, struct file *filp)
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s open(), old ref count = %d\n",
-			 __FILE__,__LINE__,tty->driver->name, info->port.count);
+			 __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
 
 	/* If port is closing, signal caller to try again */
 	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
@@ -769,10 +769,10 @@ static int open(struct tty_struct *tty, struct file *filp)
 		spin_unlock_irqrestore(&info->netlock, flags);
 		goto cleanup;
 	}
-	info->port.count++;
+	atomic_inc(&info->port.count);
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (info->port.count == 1) {
+	if (atomic_read(&info->port.count) == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info);
 		if (retval < 0)
@@ -796,8 +796,8 @@ cleanup:
 	if (retval) {
 		if (tty->count == 1)
 			info->port.tty = NULL; /* tty layer will release tty struct */
-		if(info->port.count)
-			info->port.count--;
+		if(atomic_read(&info->port.count))
+			atomic_dec(&info->port.count);
 	}
 
 	return retval;
@@ -815,7 +815,7 @@ static void close(struct tty_struct *tty, struct file *filp)
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s close() entry, count=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->port.count);
+			 __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
 
 	if (tty_port_close_start(&info->port, tty, filp) == 0)
 		goto cleanup;
@@ -834,7 +834,7 @@ static void close(struct tty_struct *tty, struct file *filp)
 cleanup:
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
-			tty->driver->name, info->port.count);
+			tty->driver->name, atomic_read(&info->port.count));
 }
 
 /* Called by tty_hangup() when a hangup is signaled.
@@ -857,7 +857,7 @@ static void hangup(struct tty_struct *tty)
 	shutdown(info);
 
 	spin_lock_irqsave(&info->port.lock, flags);
-	info->port.count = 0;
+	atomic_set(&info->port.count, 0);
 	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
 	info->port.tty = NULL;
 	spin_unlock_irqrestore(&info->port.lock, flags);
@@ -1565,7 +1565,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	switch (encoding)
@@ -1660,7 +1660,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
+	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -1746,7 +1746,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
@@ -2620,7 +2620,7 @@ static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
 		 * do not request bottom half processing if the
 		 * device is not open in a normal mode.
 		 */
-		if ( port && (port->port.count || port->netcount) &&
+		if ( port && (atomic_read(&port->port.count) || port->netcount) &&
 		     port->pending_bh && !port->bh_running &&
 		     !port->bh_requested ) {
 			if ( debug_level >= DEBUG_LEVEL_ISR )
@@ -3318,12 +3318,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s block_til_ready() before block, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
+			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 
 	spin_lock_irqsave(&info->lock, flags);
 	if (!tty_hung_up_p(filp)) {
 		extra_count = true;
-		port->count--;
+		atomic_dec(&port->count);
 	}
 	spin_unlock_irqrestore(&info->lock, flags);
 	port->blocked_open++;
@@ -3352,7 +3352,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 		if (debug_level >= DEBUG_LEVEL_INFO)
 			printk("%s(%d):%s block_til_ready() count=%d\n",
-				 __FILE__,__LINE__, tty->driver->name, port->count );
+				 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 
 		tty_unlock(tty);
 		schedule();
@@ -3363,12 +3363,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	remove_wait_queue(&port->open_wait, &wait);
 
 	if (extra_count)
-		port->count++;
+		atomic_inc(&port->count);
 	port->blocked_open--;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s block_til_ready() after, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
+			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 
 	if (!retval)
 		port->flags |= ASYNC_NORMAL_ACTIVE;
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 3687f0c..6b9b808 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -995,7 +995,7 @@ EXPORT_SYMBOL(unregister_sysrq_key);
 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
 				   size_t count, loff_t *ppos)
 {
-	if (count) {
+	if (count && capable(CAP_SYS_ADMIN)) {
 		char c;
 
 		if (get_user(c, buf))
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index a9cd0b9..47b9336 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -3398,7 +3398,7 @@ EXPORT_SYMBOL_GPL(get_current_tty);
 
 void tty_default_fops(struct file_operations *fops)
 {
-	*fops = tty_fops;
+	memcpy((void *)fops, &tty_fops, sizeof(tty_fops));
 }
 
 /*
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index d794087..e4f49e5 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -56,7 +56,7 @@ static void put_ldisc(struct tty_ldisc *ld)
 	if (atomic_dec_and_test(&ld->users)) {
 		struct tty_ldisc_ops *ldo = ld->ops;
 
-		ldo->refcount--;
+		atomic_dec(&ldo->refcount);
 		module_put(ldo->owner);
 		raw_spin_unlock_irqrestore(&tty_ldisc_lock, flags);
 
@@ -93,7 +93,7 @@ int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc)
 	raw_spin_lock_irqsave(&tty_ldisc_lock, flags);
 	tty_ldiscs[disc] = new_ldisc;
 	new_ldisc->num = disc;
-	new_ldisc->refcount = 0;
+	atomic_set(&new_ldisc->refcount, 0);
 	raw_spin_unlock_irqrestore(&tty_ldisc_lock, flags);
 
 	return ret;
@@ -121,7 +121,7 @@ int tty_unregister_ldisc(int disc)
 		return -EINVAL;
 
 	raw_spin_lock_irqsave(&tty_ldisc_lock, flags);
-	if (tty_ldiscs[disc]->refcount)
+	if (atomic_read(&tty_ldiscs[disc]->refcount))
 		ret = -EBUSY;
 	else
 		tty_ldiscs[disc] = NULL;
@@ -142,7 +142,7 @@ static struct tty_ldisc_ops *get_ldops(int disc)
 	if (ldops) {
 		ret = ERR_PTR(-EAGAIN);
 		if (try_module_get(ldops->owner)) {
-			ldops->refcount++;
+			atomic_inc(&ldops->refcount);
 			ret = ldops;
 		}
 	}
@@ -155,7 +155,7 @@ static void put_ldops(struct tty_ldisc_ops *ldops)
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&tty_ldisc_lock, flags);
-	ldops->refcount--;
+	atomic_dec(&ldops->refcount);
 	module_put(ldops->owner);
 	raw_spin_unlock_irqrestore(&tty_ldisc_lock, flags);
 }
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index b7ff59d..7c6105e 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -218,7 +218,7 @@ void tty_port_hangup(struct tty_port *port)
 	unsigned long flags;
 
 	spin_lock_irqsave(&port->lock, flags);
-	port->count = 0;
+	atomic_set(&port->count, 0);
 	port->flags &= ~ASYNC_NORMAL_ACTIVE;
 	if (port->tty) {
 		set_bit(TTY_IO_ERROR, &port->tty->flags);
@@ -344,7 +344,7 @@ int tty_port_block_til_ready(struct tty_port *port,
 	/* The port lock protects the port counts */
 	spin_lock_irqsave(&port->lock, flags);
 	if (!tty_hung_up_p(filp))
-		port->count--;
+		atomic_dec(&port->count);
 	port->blocked_open++;
 	spin_unlock_irqrestore(&port->lock, flags);
 
@@ -386,7 +386,7 @@ int tty_port_block_til_ready(struct tty_port *port,
 	   we must not mess that up further */
 	spin_lock_irqsave(&port->lock, flags);
 	if (!tty_hung_up_p(filp))
-		port->count++;
+		atomic_inc(&port->count);
 	port->blocked_open--;
 	if (retval == 0)
 		port->flags |= ASYNC_NORMAL_ACTIVE;
@@ -406,19 +406,19 @@ int tty_port_close_start(struct tty_port *port,
 		return 0;
 	}
 
-	if (tty->count == 1 && port->count != 1) {
+	if (tty->count == 1 && atomic_read(&port->count) != 1) {
 		printk(KERN_WARNING
 		    "tty_port_close_start: tty->count = 1 port count = %d.\n",
-								port->count);
-		port->count = 1;
+								atomic_read(&port->count));
+		atomic_set(&port->count, 1);
 	}
-	if (--port->count < 0) {
+	if (atomic_dec_return(&port->count) < 0) {
 		printk(KERN_WARNING "tty_port_close_start: count = %d\n",
-								port->count);
-		port->count = 0;
+								atomic_read(&port->count));
+		atomic_set(&port->count, 0);
 	}
 
-	if (port->count) {
+	if (atomic_read(&port->count)) {
 		spin_unlock_irqrestore(&port->lock, flags);
 		if (port->ops->drop)
 			port->ops->drop(port);
@@ -516,7 +516,7 @@ int tty_port_open(struct tty_port *port, struct tty_struct *tty,
 {
 	spin_lock_irq(&port->lock);
 	if (!tty_hung_up_p(filp))
-		++port->count;
+		atomic_inc(&port->count);
 	spin_unlock_irq(&port->lock);
 	tty_port_tty_set(port, tty);
 
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index a9af1b9a..1e08e7f 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -647,6 +647,16 @@ static void k_spec(struct vc_data *vc, unsigned char value, char up_flag)
 	     kbd->kbdmode == VC_OFF) &&
 	     value != KVAL(K_SAK))
 		return;		/* SAK is allowed even in raw mode */
+
+#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
+	{
+		void *func = fn_handler[value];
+		if (func == fn_show_state || func == fn_show_ptregs ||
+		    func == fn_show_mem)
+			return;
+	}
+#endif
+
 	fn_handler[value](vc);
 }
 
@@ -1795,9 +1805,6 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
 	if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry)))
 		return -EFAULT;
 
-	if (!capable(CAP_SYS_TTY_CONFIG))
-		perm = 0;
-
 	switch (cmd) {
 	case KDGKBENT:
 		/* Ensure another thread doesn't free it under us */
@@ -1812,6 +1819,9 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
 		spin_unlock_irqrestore(&kbd_event_lock, flags);
 		return put_user(val, &user_kbe->kb_value);
 	case KDSKBENT:
+		if (!capable(CAP_SYS_TTY_CONFIG))
+			perm = 0;
+
 		if (!perm)
 			return -EPERM;
 		if (!i && v == K_NOSUCHMAP) {
@@ -1902,9 +1912,6 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
 	int i, j, k;
 	int ret;
 
-	if (!capable(CAP_SYS_TTY_CONFIG))
-		perm = 0;
-
 	kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
 	if (!kbs) {
 		ret = -ENOMEM;
@@ -1938,6 +1945,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
 		kfree(kbs);
 		return ((p && *p) ? -EOVERFLOW : 0);
 	case KDSKBSENT:
+		if (!capable(CAP_SYS_TTY_CONFIG))
+			perm = 0;
+
 		if (!perm) {
 			ret = -EPERM;
 			goto reterr;
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index c8b9262..7e824e6 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -25,6 +25,7 @@
 #include <linux/kobject.h>
 #include <linux/cdev.h>
 #include <linux/uio_driver.h>
+#include <asm/local.h>
 
 #define UIO_MAX_DEVICES		(1U << MINORBITS)
 
@@ -32,10 +33,10 @@ struct uio_device {
 	struct module		*owner;
 	struct device		*dev;
 	int			minor;
-	atomic_t		event;
+	atomic_unchecked_t	event;
 	struct fasync_struct	*async_queue;
 	wait_queue_head_t	wait;
-	int			vma_count;
+	local_t			vma_count;
 	struct uio_info		*info;
 	struct kobject		*map_dir;
 	struct kobject		*portio_dir;
@@ -242,7 +243,7 @@ static ssize_t show_event(struct device *dev,
 			  struct device_attribute *attr, char *buf)
 {
 	struct uio_device *idev = dev_get_drvdata(dev);
-	return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event));
+	return sprintf(buf, "%u\n", (unsigned int)atomic_read_unchecked(&idev->event));
 }
 
 static struct device_attribute uio_class_attributes[] = {
@@ -397,7 +398,7 @@ void uio_event_notify(struct uio_info *info)
 {
 	struct uio_device *idev = info->uio_dev;
 
-	atomic_inc(&idev->event);
+	atomic_inc_unchecked(&idev->event);
 	wake_up_interruptible(&idev->wait);
 	kill_fasync(&idev->async_queue, SIGIO, POLL_IN);
 }
@@ -450,7 +451,7 @@ static int uio_open(struct inode *inode, struct file *filep)
 	}
 
 	listener->dev = idev;
-	listener->event_count = atomic_read(&idev->event);
+	listener->event_count = atomic_read_unchecked(&idev->event);
 	filep->private_data = listener;
 
 	if (idev->info->open) {
@@ -501,7 +502,7 @@ static unsigned int uio_poll(struct file *filep, poll_table *wait)
 		return -EIO;
 
 	poll_wait(filep, &idev->wait, wait);
-	if (listener->event_count != atomic_read(&idev->event))
+	if (listener->event_count != atomic_read_unchecked(&idev->event))
 		return POLLIN | POLLRDNORM;
 	return 0;
 }
@@ -526,7 +527,7 @@ static ssize_t uio_read(struct file *filep, char __user *buf,
 	do {
 		set_current_state(TASK_INTERRUPTIBLE);
 
-		event_count = atomic_read(&idev->event);
+		event_count = atomic_read_unchecked(&idev->event);
 		if (event_count != listener->event_count) {
 			if (copy_to_user(buf, &event_count, count))
 				retval = -EFAULT;
@@ -595,13 +596,13 @@ static int uio_find_mem_index(struct vm_area_struct *vma)
 static void uio_vma_open(struct vm_area_struct *vma)
 {
 	struct uio_device *idev = vma->vm_private_data;
-	idev->vma_count++;
+	local_inc(&idev->vma_count);
 }
 
 static void uio_vma_close(struct vm_area_struct *vma)
 {
 	struct uio_device *idev = vma->vm_private_data;
-	idev->vma_count--;
+	local_dec(&idev->vma_count);
 }
 
 static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
@@ -808,7 +809,7 @@ int __uio_register_device(struct module *owner,
 	idev->owner = owner;
 	idev->info = info;
 	init_waitqueue_head(&idev->wait);
-	atomic_set(&idev->event, 0);
+	atomic_set_unchecked(&idev->event, 0);
 
 	ret = uio_get_minor(idev);
 	if (ret)
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index b7eb86a..c00402f 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -473,7 +473,7 @@ static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev,
 		ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp);
 		if (ret < 2)
 			return -EINVAL;
-		if (index < 0 || index > 0x7f)
+		if (index > 0x7f)
 			return -EINVAL;
 		pos += tmp;
 
@@ -686,7 +686,8 @@ static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_requ
 {
 	int ret, len;
 	__le32 *buf;
-	int offb, offd;
+	int offb;
+	unsigned int offd;
 	const int stride = CMD_PACKET_SIZE / (4 * 2) - 1;
 	int buflen =  ((size - 1) / stride + 1 + size * 2) * 4;
 
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 35f10bf..6a38a0b 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -333,7 +333,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 		if (printk_ratelimit())
 			atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n",
 				__func__, vpi, vci);
-		atomic_inc(&vcc->stats->rx_err);
+		atomic_inc_unchecked(&vcc->stats->rx_err);
 		return;
 	}
 
@@ -361,7 +361,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 		if (length > ATM_MAX_AAL5_PDU) {
 			atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n",
 				  __func__, length, vcc);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			goto out;
 		}
 
@@ -370,14 +370,14 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 		if (sarb->len < pdu_length) {
 			atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n",
 				  __func__, pdu_length, sarb->len, vcc);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			goto out;
 		}
 
 		if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) {
 			atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n",
 				  __func__, vcc);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			goto out;
 		}
 
@@ -389,7 +389,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 			if (printk_ratelimit())
 				atm_err(instance, "%s: no memory for skb (length: %u)!\n",
 					__func__, length);
-			atomic_inc(&vcc->stats->rx_drop);
+			atomic_inc_unchecked(&vcc->stats->rx_drop);
 			goto out;
 		}
 
@@ -417,7 +417,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 
 		vcc->push(vcc, skb);
 
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 	out:
 		skb_trim(sarb, 0);
 	}
@@ -623,7 +623,7 @@ static void usbatm_tx_process(unsigned long data)
 			struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc;
 
 			usbatm_pop(vcc, skb);
-			atomic_inc(&vcc->stats->tx);
+			atomic_inc_unchecked(&vcc->stats->tx);
 
 			skb = skb_dequeue(&instance->sndqueue);
 		}
@@ -779,11 +779,11 @@ static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t * pos, char *pag
 	if (!left--)
 		return sprintf(page,
 			       "AAL5: tx %d ( %d err ), rx %d ( %d err, %d drop )\n",
-			       atomic_read(&atm_dev->stats.aal5.tx),
-			       atomic_read(&atm_dev->stats.aal5.tx_err),
-			       atomic_read(&atm_dev->stats.aal5.rx),
-			       atomic_read(&atm_dev->stats.aal5.rx_err),
-			       atomic_read(&atm_dev->stats.aal5.rx_drop));
+			       atomic_read_unchecked(&atm_dev->stats.aal5.tx),
+			       atomic_read_unchecked(&atm_dev->stats.aal5.tx_err),
+			       atomic_read_unchecked(&atm_dev->stats.aal5.rx),
+			       atomic_read_unchecked(&atm_dev->stats.aal5.rx_err),
+			       atomic_read_unchecked(&atm_dev->stats.aal5.rx_drop));
 
 	if (!left--) {
 		if (instance->disconnected)
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 2a3bbdf..91d72cf 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -126,7 +126,7 @@ static const char format_endpt[] =
  * time it gets called.
  */
 static struct device_connect_event {
-	atomic_t count;
+	atomic_unchecked_t count;
 	wait_queue_head_t wait;
 } device_event = {
 	.count = ATOMIC_INIT(1),
@@ -164,7 +164,7 @@ static const struct class_info clas_info[] = {
 
 void usbfs_conn_disc_event(void)
 {
-	atomic_add(2, &device_event.count);
+	atomic_add_unchecked(2, &device_event.count);
 	wake_up(&device_event.wait);
 }
 
@@ -652,7 +652,7 @@ static unsigned int usb_device_poll(struct file *file,
 
 	poll_wait(file, &device_event.wait, wait);
 
-	event_count = atomic_read(&device_event.count);
+	event_count = atomic_read_unchecked(&device_event.count);
 	if (file->f_version != event_count) {
 		file->f_version = event_count;
 		return POLLIN | POLLRDNORM;
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index f9ec44c..eb5779f 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1526,7 +1526,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
 	 */
 	usb_get_urb(urb);
 	atomic_inc(&urb->use_count);
-	atomic_inc(&urb->dev->urbnum);
+	atomic_inc_unchecked(&urb->dev->urbnum);
 	usbmon_urb_submit(&hcd->self, urb);
 
 	/* NOTE requirements on root-hub callers (usbfs and the hub
@@ -1553,7 +1553,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
 		urb->hcpriv = NULL;
 		INIT_LIST_HEAD(&urb->urb_list);
 		atomic_dec(&urb->use_count);
-		atomic_dec(&urb->dev->urbnum);
+		atomic_dec_unchecked(&urb->dev->urbnum);
 		if (atomic_read(&urb->reject))
 			wake_up(&usb_kill_urb_queue);
 		usb_put_urb(urb);
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 444d30e..f15c850 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -129,7 +129,7 @@ static int usb_internal_control_msg(struct usb_device *usb_dev,
  * method can wait for it to complete.  Since you don't have a handle on the
  * URB used, you can't cancel the request.
  */
-int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
+int __intentional_overflow(-1) usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
 		    __u8 requesttype, __u16 value, __u16 index, void *data,
 		    __u16 size, int timeout)
 {
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 3f81a3d..a3aa993 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -239,7 +239,7 @@ show_urbnum(struct device *dev, struct device_attribute *attr, char *buf)
 	struct usb_device *udev;
 
 	udev = to_usb_device(dev);
-	return sprintf(buf, "%d\n", atomic_read(&udev->urbnum));
+	return sprintf(buf, "%d\n", atomic_read_unchecked(&udev->urbnum));
 }
 static DEVICE_ATTR(urbnum, S_IRUGO, show_urbnum, NULL);
 
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index f81b925..78d22ec 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -388,7 +388,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
 	set_dev_node(&dev->dev, dev_to_node(bus->controller));
 	dev->state = USB_STATE_ATTACHED;
 	dev->lpm_disable_count = 1;
-	atomic_set(&dev->urbnum, 0);
+	atomic_set_unchecked(&dev->urbnum, 0);
 
 	INIT_LIST_HEAD(&dev->ep0.urb_list);
 	dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE;
diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
index 5e29dde..eca992f 100644
--- a/drivers/usb/early/ehci-dbgp.c
+++ b/drivers/usb/early/ehci-dbgp.c
@@ -98,7 +98,8 @@ static inline u32 dbgp_len_update(u32 x, u32 len)
 
 #ifdef CONFIG_KGDB
 static struct kgdb_io kgdbdbgp_io_ops;
-#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops)
+static struct kgdb_io kgdbdbgp_io_ops_console;
+#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops || dbg_io_ops == &kgdbdbgp_io_ops_console)
 #else
 #define dbgp_kgdb_mode (0)
 #endif
@@ -1047,6 +1048,13 @@ static struct kgdb_io kgdbdbgp_io_ops = {
 	.write_char = kgdbdbgp_write_char,
 };
 
+static struct kgdb_io kgdbdbgp_io_ops_console = {
+	.name = "kgdbdbgp",
+	.read_char = kgdbdbgp_read_char,
+	.write_char = kgdbdbgp_write_char,
+	.is_console = 1
+};
+
 static int kgdbdbgp_wait_time;
 
 static int __init kgdbdbgp_parse_config(char *str)
@@ -1062,8 +1070,10 @@ static int __init kgdbdbgp_parse_config(char *str)
 		ptr++;
 		kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10);
 	}
-	kgdb_register_io_module(&kgdbdbgp_io_ops);
-	kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1;
+	if (early_dbgp_console.index != -1)
+		kgdb_register_io_module(&kgdbdbgp_io_ops_console);
+	else
+		kgdb_register_io_module(&kgdbdbgp_io_ops);
 
 	return 0;
 }
diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
index b369292..9f3ba40 100644
--- a/drivers/usb/gadget/u_serial.c
+++ b/drivers/usb/gadget/u_serial.c
@@ -733,9 +733,9 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 			spin_lock_irq(&port->port_lock);
 
 			/* already open?  Great. */
-			if (port->port.count) {
+			if (atomic_read(&port->port.count)) {
 				status = 0;
-				port->port.count++;
+				atomic_inc(&port->port.count);
 
 			/* currently opening/closing? wait ... */
 			} else if (port->openclose) {
@@ -794,7 +794,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 	tty->driver_data = port;
 	port->port.tty = tty;
 
-	port->port.count = 1;
+	atomic_set(&port->port.count, 1);
 	port->openclose = false;
 
 	/* if connected, start the I/O stream */
@@ -836,11 +836,11 @@ static void gs_close(struct tty_struct *tty, struct file *file)
 
 	spin_lock_irq(&port->port_lock);
 
-	if (port->port.count != 1) {
-		if (port->port.count == 0)
+	if (atomic_read(&port->port.count) != 1) {
+		if (atomic_read(&port->port.count) == 0)
 			WARN_ON(1);
 		else
-			--port->port.count;
+			atomic_dec(&port->port.count);
 		goto exit;
 	}
 
@@ -850,7 +850,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
 	 * and sleep if necessary
 	 */
 	port->openclose = true;
-	port->port.count = 0;
+	atomic_set(&port->port.count, 0);
 
 	gser = port->port_usb;
 	if (gser && gser->disconnect)
@@ -1066,7 +1066,7 @@ static int gs_closed(struct gs_port *port)
 	int cond;
 
 	spin_lock_irq(&port->port_lock);
-	cond = (port->port.count == 0) && !port->openclose;
+	cond = (atomic_read(&port->port.count) == 0) && !port->openclose;
 	spin_unlock_irq(&port->port_lock);
 	return cond;
 }
@@ -1209,7 +1209,7 @@ int gserial_connect(struct gserial *gser, u8 port_num)
 	/* if it's already open, start I/O ... and notify the serial
 	 * protocol about open/close status (connect/disconnect).
 	 */
-	if (port->port.count) {
+	if (atomic_read(&port->port.count)) {
 		pr_debug("gserial_connect: start ttyGS%d\n", port->port_num);
 		gs_start_io(port);
 		if (gser->connect)
@@ -1256,7 +1256,7 @@ void gserial_disconnect(struct gserial *gser)
 
 	port->port_usb = NULL;
 	gser->ioport = NULL;
-	if (port->port.count > 0 || port->openclose) {
+	if (atomic_read(&port->port.count) > 0 || port->openclose) {
 		wake_up_interruptible(&port->drain_wait);
 		if (port->port.tty)
 			tty_hangup(port->port.tty);
@@ -1272,7 +1272,7 @@ void gserial_disconnect(struct gserial *gser)
 
 	/* finally, free any unused/unusable I/O buffers */
 	spin_lock_irqsave(&port->port_lock, flags);
-	if (port->port.count == 0 && !port->openclose)
+	if (atomic_read(&port->port.count) == 0 && !port->openclose)
 		gs_buf_free(&port->port_write_buf);
 	gs_free_requests(gser->out, &port->read_pool, NULL);
 	gs_free_requests(gser->out, &port->read_queue, NULL);
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 5f3bcd3..bfca43f 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -124,7 +124,7 @@ static int usb_console_setup(struct console *co, char *options)
 
 	info->port = port;
 
-	++port->port.count;
+	atomic_inc(&port->port.count);
 	if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) {
 		if (serial->type->set_termios) {
 			/*
@@ -174,7 +174,7 @@ static int usb_console_setup(struct console *co, char *options)
 	}
 	/* Now that any required fake tty operations are completed restore
 	 * the tty port count */
-	--port->port.count;
+	atomic_dec(&port->port.count);
 	/* The console is special in terms of closing the device so
 	 * indicate this port is now acting as a system console. */
 	port->port.console = 1;
@@ -187,7 +187,7 @@ static int usb_console_setup(struct console *co, char *options)
  free_tty:
 	kfree(tty);
  reset_open_count:
-	port->port.count = 0;
+	atomic_set(&port->port.count, 0);
 	usb_autopm_put_interface(serial->interface);
  error_get_interface:
 	usb_serial_put(serial);
diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index 6c3586a..a94e621 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -429,7 +429,7 @@ static int rts51x_read_status(struct us_data *us,
 
 	buf = kmalloc(len, GFP_NOIO);
 	if (buf == NULL)
-		return USB_STOR_TRANSPORT_ERROR;
+		return -ENOMEM;
 
 	US_DEBUGP("%s, lun = %d\n", __func__, lun);
 
diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
index 75f70f0..d467e1a 100644
--- a/drivers/usb/storage/usb.h
+++ b/drivers/usb/storage/usb.h
@@ -63,7 +63,7 @@ struct us_unusual_dev {
 	__u8  useProtocol;
 	__u8  useTransport;
 	int (*initFunction)(struct us_data *);
-};
+} __do_const;
 
 
 /* Dynamic bitflag definitions (us->dflags): used in set_bit() etc. */
diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
index d6bea3e..60b250e 100644
--- a/drivers/usb/wusbcore/wa-hc.h
+++ b/drivers/usb/wusbcore/wa-hc.h
@@ -192,7 +192,7 @@ struct wahc {
 	struct list_head xfer_delayed_list;
 	spinlock_t xfer_list_lock;
 	struct work_struct xfer_work;
-	atomic_t xfer_id_count;
+	atomic_unchecked_t xfer_id_count;
 };
 
 
@@ -246,7 +246,7 @@ static inline void wa_init(struct wahc *wa)
 	INIT_LIST_HEAD(&wa->xfer_delayed_list);
 	spin_lock_init(&wa->xfer_list_lock);
 	INIT_WORK(&wa->xfer_work, wa_urb_enqueue_run);
-	atomic_set(&wa->xfer_id_count, 1);
+	atomic_set_unchecked(&wa->xfer_id_count, 1);
 }
 
 /**
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 6ef94bc..1b41265 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -296,7 +296,7 @@ out:
  */
 static void wa_xfer_id_init(struct wa_xfer *xfer)
 {
-	xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count);
+	xfer->id = atomic_add_return_unchecked(1, &xfer->wa->xfer_id_count);
 }
 
 /*
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 8c55011..eed4ae1a 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -149,7 +149,7 @@ enum {
 };
 
 /* Must match above enum */
-static char * const r128_family[] = {
+static const char * const r128_family[] = {
 	"AGP",
 	"PCI",
 	"PRO AGP",
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 4f27fdc..d3537e6 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -1325,10 +1325,14 @@ static int atyfb_set_par(struct fb_info *info)
 	par->accel_flags = var->accel_flags; /* hack */
 
 	if (var->accel_flags) {
-		info->fbops->fb_sync = atyfb_sync;
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_sync = atyfb_sync;
+		pax_close_kernel();
 		info->flags &= ~FBINFO_HWACCEL_DISABLED;
 	} else {
-		info->fbops->fb_sync = NULL;
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_sync = NULL;
+		pax_close_kernel();
 		info->flags |= FBINFO_HWACCEL_DISABLED;
 	}
 
diff --git a/drivers/video/aty/mach64_cursor.c b/drivers/video/aty/mach64_cursor.c
index 95ec042..e6affdd 100644
--- a/drivers/video/aty/mach64_cursor.c
+++ b/drivers/video/aty/mach64_cursor.c
@@ -7,6 +7,7 @@
 #include <linux/string.h>
 
 #include <asm/io.h>
+#include <asm/pgtable.h>
 
 #ifdef __sparc__
 #include <asm/fbio.h>
@@ -208,7 +209,9 @@ int aty_init_cursor(struct fb_info *info)
 	info->sprite.buf_align = 16; 	/* and 64 lines tall. */
 	info->sprite.flags = FB_PIXMAP_IO;
 
-	info->fbops->fb_cursor = atyfb_cursor;
+	pax_open_kernel();
+	*(void **)&info->fbops->fb_cursor = atyfb_cursor;
+	pax_close_kernel();
 
 	return 0;
 }
diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
index 6c5ed6b..b727c88 100644
--- a/drivers/video/backlight/kb3886_bl.c
+++ b/drivers/video/backlight/kb3886_bl.c
@@ -78,7 +78,7 @@ static struct kb3886bl_machinfo *bl_machinfo;
 static unsigned long kb3886bl_flags;
 #define KB3886BL_SUSPENDED     0x01
 
-static struct dmi_system_id __initdata kb3886bl_device_table[] = {
+static const struct dmi_system_id __initconst kb3886bl_device_table[] = {
 	{
 		.ident = "Sahara Touch-iT",
 		.matches = {
diff --git a/drivers/video/fb_defio.c b/drivers/video/fb_defio.c
index 900aa4e..6d49418 100644
--- a/drivers/video/fb_defio.c
+++ b/drivers/video/fb_defio.c
@@ -206,7 +206,9 @@ void fb_deferred_io_init(struct fb_info *info)
 
 	BUG_ON(!fbdefio);
 	mutex_init(&fbdefio->lock);
-	info->fbops->fb_mmap = fb_deferred_io_mmap;
+	pax_open_kernel();
+	*(void **)&info->fbops->fb_mmap = fb_deferred_io_mmap;
+	pax_close_kernel();
 	INIT_DELAYED_WORK(&info->deferred_work, fb_deferred_io_work);
 	INIT_LIST_HEAD(&fbdefio->pagelist);
 	if (fbdefio->delay == 0) /* set a default of 1 s */
@@ -237,7 +239,7 @@ void fb_deferred_io_cleanup(struct fb_info *info)
 		page->mapping = NULL;
 	}
 
-	info->fbops->fb_mmap = NULL;
+	*(void **)&info->fbops->fb_mmap = NULL;
 	mutex_destroy(&fbdefio->lock);
 }
 EXPORT_SYMBOL_GPL(fb_deferred_io_cleanup);
diff --git a/drivers/video/fbcmap.c b/drivers/video/fbcmap.c
index 5c3960d..15cf8fc 100644
--- a/drivers/video/fbcmap.c
+++ b/drivers/video/fbcmap.c
@@ -285,8 +285,7 @@ int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *info)
 		rc = -ENODEV;
 		goto out;
 	}
-	if (cmap->start < 0 || (!info->fbops->fb_setcolreg &&
-				!info->fbops->fb_setcmap)) {
+	if (!info->fbops->fb_setcolreg && !info->fbops->fb_setcmap) {
 		rc = -EINVAL;
 		goto out1;
 	}
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 86291dc..7cc5962 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -428,7 +428,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
 			image->dx += image->width + 8;
 		}
 	} else if (rotate == FB_ROTATE_UD) {
-		for (x = 0; x < num && image->dx >= 0; x++) {
+		for (x = 0; x < num && (__s32)image->dx >= 0; x++) {
 			info->fbops->fb_imageblit(info, image);
 			image->dx -= image->width + 8;
 		}
@@ -440,7 +440,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
 			image->dy += image->height + 8;
 		}
 	} else if (rotate == FB_ROTATE_CCW) {
-		for (x = 0; x < num && image->dy >= 0; x++) {
+		for (x = 0; x < num && (__s32)image->dy >= 0; x++) {
 			info->fbops->fb_imageblit(info, image);
 			image->dy -= image->height + 8;
 		}
@@ -1166,7 +1166,7 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
 			return -EFAULT;
 		if (con2fb.console < 1 || con2fb.console > MAX_NR_CONSOLES)
 			return -EINVAL;
-		if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX)
+		if (con2fb.framebuffer >= FB_MAX)
 			return -EINVAL;
 		if (!registered_fb[con2fb.framebuffer])
 			request_module("fb%d", con2fb.framebuffer);
diff --git a/drivers/video/i810/i810_accel.c b/drivers/video/i810/i810_accel.c
index 7672d2e..b56437f 100644
--- a/drivers/video/i810/i810_accel.c
+++ b/drivers/video/i810/i810_accel.c
@@ -73,6 +73,7 @@ static inline int wait_for_space(struct fb_info *info, u32 space)
 		}
 	}
 	printk("ringbuffer lockup!!!\n");
+	printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space);
 	i810_report_error(mmio); 
 	par->dev_flags |= LOCKUP;
 	info->pixmap.scan_align = 1;
diff --git a/drivers/video/logo/logo_linux_clut224.ppm b/drivers/video/logo/logo_linux_clut224.ppm
index 3c14e43..eafa544 100644
--- a/drivers/video/logo/logo_linux_clut224.ppm
+++ b/drivers/video/logo/logo_linux_clut224.ppm
@@ -1,1604 +1,1123 @@
 P3
-# Standard 224-color Linux logo
 80 80
 255
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  6   6   6   6   6   6  10  10  10  10  10  10
- 10  10  10   6   6   6   6   6   6   6   6   6
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   6   6   6  10  10  10  14  14  14
- 22  22  22  26  26  26  30  30  30  34  34  34
- 30  30  30  30  30  30  26  26  26  18  18  18
- 14  14  14  10  10  10   6   6   6   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  6   6   6  14  14  14  26  26  26  42  42  42
- 54  54  54  66  66  66  78  78  78  78  78  78
- 78  78  78  74  74  74  66  66  66  54  54  54
- 42  42  42  26  26  26  18  18  18  10  10  10
-  6   6   6   0   0   0   0   0   0   0   0   0
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- 22  22  22  42  42  42  66  66  66  86  86  86
- 66  66  66  38  38  38  38  38  38  22  22  22
- 26  26  26  34  34  34  54  54  54  66  66  66
- 86  86  86  70  70  70  46  46  46  26  26  26
- 14  14  14   6   6   6   0   0   0   0   0   0
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-  0   0   0   0   0   0  10  10  10  26  26  26
- 50  50  50  82  82  82  58  58  58   6   6   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  6   6   6  54  54  54  86  86  86  66  66  66
- 38  38  38  18  18  18   6   6   6   0   0   0
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-  0   0   0   6   6   6  22  22  22  50  50  50
- 78  78  78  34  34  34   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   6   6   6  70  70  70
- 78  78  78  46  46  46  22  22  22   6   6   6
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  6   6   6  18  18  18  42  42  42  82  82  82
- 26  26  26   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  14  14  14
- 46  46  46  34  34  34   6   6   6   2   2   6
- 42  42  42  78  78  78  42  42  42  18  18  18
-  6   6   6   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
- 10  10  10  30  30  30  66  66  66  58  58  58
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  26  26  26
- 86  86  86 101 101 101  46  46  46  10  10  10
-  2   2   6  58  58  58  70  70  70  34  34  34
- 10  10  10   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
- 14  14  14  42  42  42  86  86  86  10  10  10
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  30  30  30
- 94  94  94  94  94  94  58  58  58  26  26  26
-  2   2   6   6   6   6  78  78  78  54  54  54
- 22  22  22   6   6   6   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   6   6   6
- 22  22  22  62  62  62  62  62  62   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  26  26  26
- 54  54  54  38  38  38  18  18  18  10  10  10
-  2   2   6   2   2   6  34  34  34  82  82  82
- 38  38  38  14  14  14   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   6   6   6
- 30  30  30  78  78  78  30  30  30   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  10  10  10
- 10  10  10   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  78  78  78
- 50  50  50  18  18  18   6   6   6   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  10  10  10
- 38  38  38  86  86  86  14  14  14   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  54  54  54
- 66  66  66  26  26  26   6   6   6   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  14  14  14
- 42  42  42  82  82  82   2   2   6   2   2   6
-  2   2   6   6   6   6  10  10  10   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   6   6   6
- 14  14  14  10  10  10   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  18  18  18
- 82  82  82  34  34  34  10  10  10   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  14  14  14
- 46  46  46  86  86  86   2   2   6   2   2   6
-  6   6   6   6   6   6  22  22  22  34  34  34
-  6   6   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6  18  18  18  34  34  34
- 10  10  10  50  50  50  22  22  22   2   2   6
-  2   2   6   2   2   6   2   2   6  10  10  10
- 86  86  86  42  42  42  14  14  14   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  14  14  14
- 46  46  46  86  86  86   2   2   6   2   2   6
- 38  38  38 116 116 116  94  94  94  22  22  22
- 22  22  22   2   2   6   2   2   6   2   2   6
- 14  14  14  86  86  86 138 138 138 162 162 162
-154 154 154  38  38  38  26  26  26   6   6   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 86  86  86  46  46  46  14  14  14   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  14  14  14
- 46  46  46  86  86  86   2   2   6  14  14  14
-134 134 134 198 198 198 195 195 195 116 116 116
- 10  10  10   2   2   6   2   2   6   6   6   6
-101  98  89 187 187 187 210 210 210 218 218 218
-214 214 214 134 134 134  14  14  14   6   6   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 86  86  86  50  50  50  18  18  18   6   6   6
-  0   0   0   0   0   0   0   0   0   0   0   0
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- 90  90  90 238 238 238 158 158 158   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 70  70  70  58  58  58  22  22  22   6   6   6
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- 46  46  46 190 190 190 198 198 198   2   2   6
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-  2   2   6   2   2   6   2   2   6   2   2   6
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-226 170  11 236 186  11 225 175  15 184 144  12
-215 174  15 175 146  61  37  26   9   2   2   6
- 70  70  70 246 246 246 138 138 138   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 70  70  70  66  66  66  26  26  26   6   6   6
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- 94  70  30 139 102  15 190 146  13 226 184  13
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-  6   6   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  62  62  62
- 74  74  74  34  34  34  14  14  14   0   0   0
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- 94  94  94  18  18  18   2   2   6  46  46  46
-234 234 234 221 221 221 190 190 190 190 190 190
-190 190 190 187 187 187 187 187 187 190 190 190
-190 190 190 195 195 195 214 214 214 242 242 242
-253 253 253 253 253 253 253 253 253 253 253 253
- 82  82  82   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  14  14  14
- 86  86  86  54  54  54  22  22  22   6   6   6
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-  6   6   6  18  18  18  46  46  46  90  90  90
- 46  46  46  18  18  18   6   6   6 182 182 182
-253 253 253 246 246 246 206 206 206 190 190 190
-190 190 190 190 190 190 190 190 190 190 190 190
-206 206 206 231 231 231 250 250 250 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-202 202 202  14  14  14   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 42  42  42  86  86  86  42  42  42  18  18  18
-  6   6   6   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   6   6   6
- 14  14  14  38  38  38  74  74  74  66  66  66
-  2   2   6   6   6   6  90  90  90 250 250 250
-253 253 253 253 253 253 238 238 238 198 198 198
-190 190 190 190 190 190 195 195 195 221 221 221
-246 246 246 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253  82  82  82   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  78  78  78  70  70  70  34  34  34
- 14  14  14   6   6   6   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  14  14  14
- 34  34  34  66  66  66  78  78  78   6   6   6
-  2   2   6  18  18  18 218 218 218 253 253 253
-253 253 253 253 253 253 253 253 253 246 246 246
-226 226 226 231 231 231 246 246 246 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 178 178 178   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  18  18  18  90  90  90  62  62  62
- 30  30  30  10  10  10   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0  10  10  10  26  26  26
- 58  58  58  90  90  90  18  18  18   2   2   6
-  2   2   6 110 110 110 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-250 250 250 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 231 231 231  18  18  18   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6  18  18  18  94  94  94
- 54  54  54  26  26  26  10  10  10   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   6   6   6  22  22  22  50  50  50
- 90  90  90  26  26  26   2   2   6   2   2   6
- 14  14  14 195 195 195 250 250 250 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-250 250 250 242 242 242  54  54  54   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  38  38  38
- 86  86  86  50  50  50  22  22  22   6   6   6
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  6   6   6  14  14  14  38  38  38  82  82  82
- 34  34  34   2   2   6   2   2   6   2   2   6
- 42  42  42 195 195 195 246 246 246 253 253 253
-253 253 253 253 253 253 253 253 253 250 250 250
-242 242 242 242 242 242 250 250 250 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 250 250 250 246 246 246 238 238 238
-226 226 226 231 231 231 101 101 101   6   6   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 38  38  38  82  82  82  42  42  42  14  14  14
-  6   6   6   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
- 10  10  10  26  26  26  62  62  62  66  66  66
-  2   2   6   2   2   6   2   2   6   6   6   6
- 70  70  70 170 170 170 206 206 206 234 234 234
-246 246 246 250 250 250 250 250 250 238 238 238
-226 226 226 231 231 231 238 238 238 250 250 250
-250 250 250 250 250 250 246 246 246 231 231 231
-214 214 214 206 206 206 202 202 202 202 202 202
-198 198 198 202 202 202 182 182 182  18  18  18
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  62  62  62  66  66  66  30  30  30
- 10  10  10   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
- 14  14  14  42  42  42  82  82  82  18  18  18
-  2   2   6   2   2   6   2   2   6  10  10  10
- 94  94  94 182 182 182 218 218 218 242 242 242
-250 250 250 253 253 253 253 253 253 250 250 250
-234 234 234 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 246 246 246
-238 238 238 226 226 226 210 210 210 202 202 202
-195 195 195 195 195 195 210 210 210 158 158 158
-  6   6   6  14  14  14  50  50  50  14  14  14
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   6   6   6  86  86  86  46  46  46
- 18  18  18   6   6   6   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   6   6   6
- 22  22  22  54  54  54  70  70  70   2   2   6
-  2   2   6  10  10  10   2   2   6  22  22  22
-166 166 166 231 231 231 250 250 250 253 253 253
-253 253 253 253 253 253 253 253 253 250 250 250
-242 242 242 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 246 246 246
-231 231 231 206 206 206 198 198 198 226 226 226
- 94  94  94   2   2   6   6   6   6  38  38  38
- 30  30  30   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6  62  62  62  66  66  66
- 26  26  26  10  10  10   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  10  10  10
- 30  30  30  74  74  74  50  50  50   2   2   6
- 26  26  26  26  26  26   2   2   6 106 106 106
-238 238 238 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 246 246 246 218 218 218 202 202 202
-210 210 210  14  14  14   2   2   6   2   2   6
- 30  30  30  22  22  22   2   2   6   2   2   6
-  2   2   6   2   2   6  18  18  18  86  86  86
- 42  42  42  14  14  14   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  14  14  14
- 42  42  42  90  90  90  22  22  22   2   2   6
- 42  42  42   2   2   6  18  18  18 218 218 218
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 250 250 250 221 221 221
-218 218 218 101 101 101   2   2   6  14  14  14
- 18  18  18  38  38  38  10  10  10   2   2   6
-  2   2   6   2   2   6   2   2   6  78  78  78
- 58  58  58  22  22  22   6   6   6   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   6   6   6  18  18  18
- 54  54  54  82  82  82   2   2   6  26  26  26
- 22  22  22   2   2   6 123 123 123 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 250 250 250
-238 238 238 198 198 198   6   6   6  38  38  38
- 58  58  58  26  26  26  38  38  38   2   2   6
-  2   2   6   2   2   6   2   2   6  46  46  46
- 78  78  78  30  30  30  10  10  10   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0  10  10  10  30  30  30
- 74  74  74  58  58  58   2   2   6  42  42  42
-  2   2   6  22  22  22 231 231 231 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 250 250 250
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 246 246 246  46  46  46  38  38  38
- 42  42  42  14  14  14  38  38  38  14  14  14
-  2   2   6   2   2   6   2   2   6   6   6   6
- 86  86  86  46  46  46  14  14  14   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   6   6   6  14  14  14  42  42  42
- 90  90  90  18  18  18  18  18  18  26  26  26
-  2   2   6 116 116 116 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 250 250 250 238 238 238
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253  94  94  94   6   6   6
-  2   2   6   2   2   6  10  10  10  34  34  34
-  2   2   6   2   2   6   2   2   6   2   2   6
- 74  74  74  58  58  58  22  22  22   6   6   6
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0  10  10  10  26  26  26  66  66  66
- 82  82  82   2   2   6  38  38  38   6   6   6
- 14  14  14 210 210 210 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 246 246 246 242 242 242
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 144 144 144   2   2   6
-  2   2   6   2   2   6   2   2   6  46  46  46
-  2   2   6   2   2   6   2   2   6   2   2   6
- 42  42  42  74  74  74  30  30  30  10  10  10
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  6   6   6  14  14  14  42  42  42  90  90  90
- 26  26  26   6   6   6  42  42  42   2   2   6
- 74  74  74 250 250 250 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 242 242 242 242 242 242
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 182 182 182   2   2   6
-  2   2   6   2   2   6   2   2   6  46  46  46
-  2   2   6   2   2   6   2   2   6   2   2   6
- 10  10  10  86  86  86  38  38  38  10  10  10
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
- 10  10  10  26  26  26  66  66  66  82  82  82
-  2   2   6  22  22  22  18  18  18   2   2   6
-149 149 149 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 234 234 234 242 242 242
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 206 206 206   2   2   6
-  2   2   6   2   2   6   2   2   6  38  38  38
-  2   2   6   2   2   6   2   2   6   2   2   6
-  6   6   6  86  86  86  46  46  46  14  14  14
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   6   6   6
- 18  18  18  46  46  46  86  86  86  18  18  18
-  2   2   6  34  34  34  10  10  10   6   6   6
-210 210 210 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 234 234 234 242 242 242
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 221 221 221   6   6   6
-  2   2   6   2   2   6   6   6   6  30  30  30
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  82  82  82  54  54  54  18  18  18
-  6   6   6   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  10  10  10
- 26  26  26  66  66  66  62  62  62   2   2   6
-  2   2   6  38  38  38  10  10  10  26  26  26
-238 238 238 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 231 231 231 238 238 238
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 231 231 231   6   6   6
-  2   2   6   2   2   6  10  10  10  30  30  30
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  66  66  66  58  58  58  22  22  22
-  6   6   6   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6  38  38  38  46  46  46
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-  6   6   6  70  47   6 200 144  11 236 178  12
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-  2   2   6   2   2   6   2   2   6  38  38  38
-218 218 218 253 253 253 253 253 253 253 253 253
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-253 253 253 253 253 253 253 253 253 253 253 253
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-  2   2   6   2   2   6   2   2   6   2   2   6
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-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-250 250 250 214 214 214 198 198 198 190 150  46
-219 162  10 236 178  12 234 174  13 224 166  10
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- 61  42   6   2   2   6   2   2   6   2   2   6
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-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
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-253 253 253 226 226 226 187 187 187 180 133  36
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- 26  26  26  70  70  70 163 133  67 210 150  10
-236 178  12 246 190  14 246 190  14 246 190  14
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- 46  46  46  18  18  18   6   6   6   0   0   0
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-253 253 253 253 253 253 253 253 253 218 218 218
- 58  58  58   2   2   6  22  18   6 167 114   7
-216 158  10 236 178  12 246 186  14 246 190  14
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- 54  54  54  22  22  22   6   6   6   0   0   0
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- 38  38  38  86  86  86 180 133  36 213 154  11
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+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  5 5 5  4 3 3  6 6 6
+5 5 5  4 3 3  4 3 3  4 3 3  5 5 5  5 5 5
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  5 5 5  4 3 3
+5 5 5  4 3 3  5 5 5  5 5 5  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
+4 4 4  4 4 4
diff --git a/drivers/video/mb862xx/mb862xxfb_accel.c b/drivers/video/mb862xx/mb862xxfb_accel.c
index fe92eed..106e085 100644
--- a/drivers/video/mb862xx/mb862xxfb_accel.c
+++ b/drivers/video/mb862xx/mb862xxfb_accel.c
@@ -312,14 +312,18 @@ void mb862xxfb_init_accel(struct fb_info *info, int xres)
 	struct mb862xxfb_par *par = info->par;
 
 	if (info->var.bits_per_pixel == 32) {
-		info->fbops->fb_fillrect = cfb_fillrect;
-		info->fbops->fb_copyarea = cfb_copyarea;
-		info->fbops->fb_imageblit = cfb_imageblit;
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_fillrect = cfb_fillrect;
+		*(void **)&info->fbops->fb_copyarea = cfb_copyarea;
+		*(void **)&info->fbops->fb_imageblit = cfb_imageblit;
+		pax_close_kernel();
 	} else {
 		outreg(disp, GC_L0EM, 3);
-		info->fbops->fb_fillrect = mb86290fb_fillrect;
-		info->fbops->fb_copyarea = mb86290fb_copyarea;
-		info->fbops->fb_imageblit = mb86290fb_imageblit;
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_fillrect = mb86290fb_fillrect;
+		*(void **)&info->fbops->fb_copyarea = mb86290fb_copyarea;
+		*(void **)&info->fbops->fb_imageblit = mb86290fb_imageblit;
+		pax_close_kernel();
 	}
 	outreg(draw, GDC_REG_DRAW_BASE, 0);
 	outreg(draw, GDC_REG_MODE_MISC, 0x8000);
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
index ff22871..b129bed 100644
--- a/drivers/video/nvidia/nvidia.c
+++ b/drivers/video/nvidia/nvidia.c
@@ -669,19 +669,23 @@ static int nvidiafb_set_par(struct fb_info *info)
 	info->fix.line_length = (info->var.xres_virtual *
 				 info->var.bits_per_pixel) >> 3;
 	if (info->var.accel_flags) {
-		info->fbops->fb_imageblit = nvidiafb_imageblit;
-		info->fbops->fb_fillrect = nvidiafb_fillrect;
-		info->fbops->fb_copyarea = nvidiafb_copyarea;
-		info->fbops->fb_sync = nvidiafb_sync;
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_imageblit = nvidiafb_imageblit;
+		*(void **)&info->fbops->fb_fillrect = nvidiafb_fillrect;
+		*(void **)&info->fbops->fb_copyarea = nvidiafb_copyarea;
+		*(void **)&info->fbops->fb_sync = nvidiafb_sync;
+		pax_close_kernel();
 		info->pixmap.scan_align = 4;
 		info->flags &= ~FBINFO_HWACCEL_DISABLED;
 		info->flags |= FBINFO_READS_FAST;
 		NVResetGraphics(info);
 	} else {
-		info->fbops->fb_imageblit = cfb_imageblit;
-		info->fbops->fb_fillrect = cfb_fillrect;
-		info->fbops->fb_copyarea = cfb_copyarea;
-		info->fbops->fb_sync = NULL;
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_imageblit = cfb_imageblit;
+		*(void **)&info->fbops->fb_fillrect = cfb_fillrect;
+		*(void **)&info->fbops->fb_copyarea = cfb_copyarea;
+		*(void **)&info->fbops->fb_sync = NULL;
+		pax_close_kernel();
 		info->pixmap.scan_align = 1;
 		info->flags |= FBINFO_HWACCEL_DISABLED;
 		info->flags &= ~FBINFO_READS_FAST;
@@ -1173,8 +1177,11 @@ static int nvidia_set_fbinfo(struct fb_info *info)
 	info->pixmap.size = 8 * 1024;
 	info->pixmap.flags = FB_PIXMAP_SYSTEM;
 
-	if (!hwcur)
-	    info->fbops->fb_cursor = NULL;
+	if (!hwcur) {
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_cursor = NULL;
+		pax_close_kernel();
+	}
 
 	info->var.accel_flags = (!noaccel);
 
diff --git a/drivers/video/s1d13xxxfb.c b/drivers/video/s1d13xxxfb.c
index 76d9053..dec2bfd 100644
--- a/drivers/video/s1d13xxxfb.c
+++ b/drivers/video/s1d13xxxfb.c
@@ -881,8 +881,10 @@ static int s1d13xxxfb_probe(struct platform_device *pdev)
 
 	switch(prod_id) {
 	case S1D13506_PROD_ID:	/* activate acceleration */
-		s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
-		s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
+		pax_open_kernel();
+		*(void **)&s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
+		*(void **)&s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
+		pax_close_kernel();
 		info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
 			FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA;
 		break;
diff --git a/drivers/video/smscufx.c b/drivers/video/smscufx.c
index 97bd662..39fab85 100644
--- a/drivers/video/smscufx.c
+++ b/drivers/video/smscufx.c
@@ -1171,7 +1171,9 @@ static int ufx_ops_release(struct fb_info *info, int user)
 		fb_deferred_io_cleanup(info);
 		kfree(info->fbdefio);
 		info->fbdefio = NULL;
-		info->fbops->fb_mmap = ufx_ops_mmap;
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_mmap = ufx_ops_mmap;
+		pax_close_kernel();
 	}
 
 	pr_debug("released /dev/fb%d user=%d count=%d",
diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c
index 86d449e..8e04dc5 100644
--- a/drivers/video/udlfb.c
+++ b/drivers/video/udlfb.c
@@ -619,11 +619,11 @@ int dlfb_handle_damage(struct dlfb_data *dev, int x, int y,
 		dlfb_urb_completion(urb);
 
 error:
-	atomic_add(bytes_sent, &dev->bytes_sent);
-	atomic_add(bytes_identical, &dev->bytes_identical);
-	atomic_add(width*height*2, &dev->bytes_rendered);
+	atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
+	atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
+	atomic_add_unchecked(width*height*2, &dev->bytes_rendered);
 	end_cycles = get_cycles();
-	atomic_add(((unsigned int) ((end_cycles - start_cycles)
+	atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
 		    >> 10)), /* Kcycles */
 		   &dev->cpu_kcycles_used);
 
@@ -744,11 +744,11 @@ static void dlfb_dpy_deferred_io(struct fb_info *info,
 		dlfb_urb_completion(urb);
 
 error:
-	atomic_add(bytes_sent, &dev->bytes_sent);
-	atomic_add(bytes_identical, &dev->bytes_identical);
-	atomic_add(bytes_rendered, &dev->bytes_rendered);
+	atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
+	atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
+	atomic_add_unchecked(bytes_rendered, &dev->bytes_rendered);
 	end_cycles = get_cycles();
-	atomic_add(((unsigned int) ((end_cycles - start_cycles)
+	atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
 		    >> 10)), /* Kcycles */
 		   &dev->cpu_kcycles_used);
 }
@@ -989,7 +989,9 @@ static int dlfb_ops_release(struct fb_info *info, int user)
 		fb_deferred_io_cleanup(info);
 		kfree(info->fbdefio);
 		info->fbdefio = NULL;
-		info->fbops->fb_mmap = dlfb_ops_mmap;
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_mmap = dlfb_ops_mmap;
+		pax_close_kernel();
 	}
 
 	pr_warn("released /dev/fb%d user=%d count=%d\n",
@@ -1372,7 +1374,7 @@ static ssize_t metrics_bytes_rendered_show(struct device *fbdev,
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dev = fb_info->par;
 	return snprintf(buf, PAGE_SIZE, "%u\n",
-			atomic_read(&dev->bytes_rendered));
+			atomic_read_unchecked(&dev->bytes_rendered));
 }
 
 static ssize_t metrics_bytes_identical_show(struct device *fbdev,
@@ -1380,7 +1382,7 @@ static ssize_t metrics_bytes_identical_show(struct device *fbdev,
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dev = fb_info->par;
 	return snprintf(buf, PAGE_SIZE, "%u\n",
-			atomic_read(&dev->bytes_identical));
+			atomic_read_unchecked(&dev->bytes_identical));
 }
 
 static ssize_t metrics_bytes_sent_show(struct device *fbdev,
@@ -1388,7 +1390,7 @@ static ssize_t metrics_bytes_sent_show(struct device *fbdev,
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dev = fb_info->par;
 	return snprintf(buf, PAGE_SIZE, "%u\n",
-			atomic_read(&dev->bytes_sent));
+			atomic_read_unchecked(&dev->bytes_sent));
 }
 
 static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
@@ -1396,7 +1398,7 @@ static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dev = fb_info->par;
 	return snprintf(buf, PAGE_SIZE, "%u\n",
-			atomic_read(&dev->cpu_kcycles_used));
+			atomic_read_unchecked(&dev->cpu_kcycles_used));
 }
 
 static ssize_t edid_show(
@@ -1456,10 +1458,10 @@ static ssize_t metrics_reset_store(struct device *fbdev,
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dev = fb_info->par;
 
-	atomic_set(&dev->bytes_rendered, 0);
-	atomic_set(&dev->bytes_identical, 0);
-	atomic_set(&dev->bytes_sent, 0);
-	atomic_set(&dev->cpu_kcycles_used, 0);
+	atomic_set_unchecked(&dev->bytes_rendered, 0);
+	atomic_set_unchecked(&dev->bytes_identical, 0);
+	atomic_set_unchecked(&dev->bytes_sent, 0);
+	atomic_set_unchecked(&dev->cpu_kcycles_used, 0);
 
 	return count;
 }
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index d428445..79a78df 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -19,6 +19,7 @@
 #include <linux/io.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
+#include <linux/moduleloader.h>
 #include <video/edid.h>
 #include <video/uvesafb.h>
 #ifdef CONFIG_X86
@@ -569,10 +570,32 @@ static int uvesafb_vbe_getpmi(struct uvesafb_ktask *task,
 	if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) {
 		par->pmi_setpal = par->ypan = 0;
 	} else {
+
+#ifdef CONFIG_PAX_KERNEXEC
+#ifdef CONFIG_MODULES
+		par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx);
+#endif
+		if (!par->pmi_code) {
+			par->pmi_setpal = par->ypan = 0;
+			return 0;
+		}
+#endif
+
 		par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4)
 						+ task->t.regs.edi);
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+		pax_open_kernel();
+		memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx);
+		pax_close_kernel();
+
+		par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]);
+		par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]);
+#else
 		par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
 		par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
+#endif
+
 		printk(KERN_INFO "uvesafb: protected mode interface info at "
 				 "%04x:%04x\n",
 				 (u16)task->t.regs.es, (u16)task->t.regs.edi);
@@ -817,13 +840,14 @@ static int uvesafb_vbe_init(struct fb_info *info)
 	par->ypan = ypan;
 
 	if (par->pmi_setpal || par->ypan) {
+#if !defined(CONFIG_MODULES) || !defined(CONFIG_PAX_KERNEXEC)
 		if (__supported_pte_mask & _PAGE_NX) {
 			par->pmi_setpal = par->ypan = 0;
 			printk(KERN_WARNING "uvesafb: NX protection is actively."
 				"We have better not to use the PMI.\n");
-		} else {
+		} else
+#endif
 			uvesafb_vbe_getpmi(task, par);
-		}
 	}
 #else
 	/* The protected mode interface is not available on non-x86. */
@@ -1457,8 +1481,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
 	info->fix.ywrapstep = (par->ypan > 1) ? 1 : 0;
 
 	/* Disable blanking if the user requested so. */
-	if (!blank)
-		info->fbops->fb_blank = NULL;
+	if (!blank) {
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_blank = NULL;
+		pax_close_kernel();
+	}
 
 	/*
 	 * Find out how much IO memory is required for the mode with
@@ -1534,8 +1561,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
 	info->flags = FBINFO_FLAG_DEFAULT |
 			(par->ypan ? FBINFO_HWACCEL_YPAN : 0);
 
-	if (!par->ypan)
-		info->fbops->fb_pan_display = NULL;
+	if (!par->ypan) {
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_pan_display = NULL;
+		pax_close_kernel();
+	}
 }
 
 static void uvesafb_init_mtrr(struct fb_info *info)
@@ -1836,6 +1866,11 @@ out:
 	if (par->vbe_modes)
 		kfree(par->vbe_modes);
 
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+	if (par->pmi_code)
+		module_free_exec(NULL, par->pmi_code);
+#endif
+
 	framebuffer_release(info);
 	return err;
 }
@@ -1862,6 +1897,12 @@ static int uvesafb_remove(struct platform_device *dev)
 				kfree(par->vbe_state_orig);
 			if (par->vbe_state_saved)
 				kfree(par->vbe_state_saved);
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+			if (par->pmi_code)
+				module_free_exec(NULL, par->pmi_code);
+#endif
+
 		}
 
 		framebuffer_release(info);
diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c
index 501b340..d80aa17 100644
--- a/drivers/video/vesafb.c
+++ b/drivers/video/vesafb.c
@@ -9,6 +9,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/moduleloader.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/string.h>
@@ -52,8 +53,8 @@ static int   vram_remap __initdata;		/* Set amount of memory to be used */
 static int   vram_total __initdata;		/* Set total amount of memory */
 static int   pmi_setpal __read_mostly = 1;	/* pmi for palette changes ??? */
 static int   ypan       __read_mostly;		/* 0..nothing, 1..ypan, 2..ywrap */
-static void  (*pmi_start)(void) __read_mostly;
-static void  (*pmi_pal)  (void) __read_mostly;
+static void  (*pmi_start)(void) __read_only;
+static void  (*pmi_pal)  (void) __read_only;
 static int   depth      __read_mostly;
 static int   vga_compat __read_mostly;
 /* --------------------------------------------------------------------- */
@@ -233,6 +234,7 @@ static int __init vesafb_probe(struct platform_device *dev)
 	unsigned int size_vmode;
 	unsigned int size_remap;
 	unsigned int size_total;
+	void *pmi_code = NULL;
 
 	if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB)
 		return -ENODEV;
@@ -275,10 +277,6 @@ static int __init vesafb_probe(struct platform_device *dev)
 		size_remap = size_total;
 	vesafb_fix.smem_len = size_remap;
 
-#ifndef __i386__
-	screen_info.vesapm_seg = 0;
-#endif
-
 	if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
 		printk(KERN_WARNING
 		       "vesafb: cannot reserve video memory at 0x%lx\n",
@@ -307,9 +305,21 @@ static int __init vesafb_probe(struct platform_device *dev)
 	printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
 	       vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
 
+#ifdef __i386__
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+	pmi_code = module_alloc_exec(screen_info.vesapm_size);
+	if (!pmi_code)
+#elif !defined(CONFIG_PAX_KERNEXEC)
+	if (0)
+#endif
+
+#endif
+	screen_info.vesapm_seg = 0;
+
 	if (screen_info.vesapm_seg) {
-		printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
-		       screen_info.vesapm_seg,screen_info.vesapm_off);
+		printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n",
+		       screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size);
 	}
 
 	if (screen_info.vesapm_seg < 0xc000)
@@ -317,9 +327,25 @@ static int __init vesafb_probe(struct platform_device *dev)
 
 	if (ypan || pmi_setpal) {
 		unsigned short *pmi_base;
+
 		pmi_base  = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
-		pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
-		pmi_pal   = (void*)((char*)pmi_base + pmi_base[2]);
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+		pax_open_kernel();
+		memcpy(pmi_code, pmi_base, screen_info.vesapm_size);
+#else
+		pmi_code  = pmi_base;
+#endif
+
+		pmi_start = (void*)((char*)pmi_code + pmi_base[1]);
+		pmi_pal   = (void*)((char*)pmi_code + pmi_base[2]);
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+		pmi_start = ktva_ktla(pmi_start);
+		pmi_pal = ktva_ktla(pmi_pal);
+		pax_close_kernel();
+#endif
+
 		printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
 		if (pmi_base[3]) {
 			printk(KERN_INFO "vesafb: pmi: ports = ");
@@ -472,8 +498,11 @@ static int __init vesafb_probe(struct platform_device *dev)
 	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE |
 		(ypan ? FBINFO_HWACCEL_YPAN : 0);
 
-	if (!ypan)
-		info->fbops->fb_pan_display = NULL;
+	if (!ypan) {
+		pax_open_kernel();
+		*(void **)&info->fbops->fb_pan_display = NULL;
+		pax_close_kernel();
+	}
 
 	if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
 		err = -ENOMEM;
@@ -488,6 +517,11 @@ static int __init vesafb_probe(struct platform_device *dev)
 	       info->node, info->fix.id);
 	return 0;
 err:
+
+#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+	module_free_exec(NULL, pmi_code);
+#endif
+
 	if (info->screen_base)
 		iounmap(info->screen_base);
 	framebuffer_release(info);
diff --git a/drivers/video/via/via_clock.h b/drivers/video/via/via_clock.h
index 88714ae..16c2e11 100644
--- a/drivers/video/via/via_clock.h
+++ b/drivers/video/via/via_clock.h
@@ -56,7 +56,7 @@ struct via_clock {
 
 	void (*set_engine_pll_state)(u8 state);
 	void (*set_engine_pll)(struct via_pll_config config);
-};
+} __no_const;
 
 
 static inline u32 get_pll_internal_frequency(u32 ref_freq,
diff --git a/drivers/xen/xenfs/xenstored.c b/drivers/xen/xenfs/xenstored.c
index fef20db..d28b1ab 100644
--- a/drivers/xen/xenfs/xenstored.c
+++ b/drivers/xen/xenfs/xenstored.c
@@ -24,7 +24,12 @@ static int xsd_release(struct inode *inode, struct file *file)
 static int xsd_kva_open(struct inode *inode, struct file *file)
 {
 	file->private_data = (void *)kasprintf(GFP_KERNEL, "0x%p",
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+					       NULL);
+#else
 					       xen_store_interface);
+#endif
+
 	if (!file->private_data)
 		return -ENOMEM;
 	return 0;
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index 0ad61c6..f198bd7 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -185,7 +185,7 @@ static int v9fs_vfs_writepage_locked(struct page *page)
 
 	retval = v9fs_file_write_internal(inode,
 					  v9inode->writeback_fid,
-					  (__force const char __user *)buffer,
+					  (const char __force_user *)buffer,
 					  len, &offset, 0);
 	if (retval > 0)
 		retval = 0;
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index d86edc8..40ff2fb 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -1314,7 +1314,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 void
 v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
 {
-	char *s = nd_get_link(nd);
+	const char *s = nd_get_link(nd);
 
 	p9_debug(P9_DEBUG_VFS, " %s %s\n",
 		 dentry->d_name.name, IS_ERR(s) ? "<error>" : s);
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 0efd152..b5802ad 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -89,7 +89,7 @@ config HAVE_AOUT
 
 config BINFMT_AOUT
 	tristate "Kernel support for a.out and ECOFF binaries"
-	depends on HAVE_AOUT
+	depends on HAVE_AOUT && BROKEN
 	---help---
 	  A.out (Assembler.OUTput) is a set of formats for libraries and
 	  executables used in the earliest versions of UNIX.  Linux used
diff --git a/fs/aio.c b/fs/aio.c
index 1dc8786..d3b29e8 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -111,7 +111,7 @@ static int aio_setup_ring(struct kioctx *ctx)
 	size += sizeof(struct io_event) * nr_events;
 	nr_pages = (size + PAGE_SIZE-1) >> PAGE_SHIFT;
 
-	if (nr_pages < 0)
+	if (nr_pages <= 0)
 		return -EINVAL;
 
 	nr_events = (PAGE_SIZE * nr_pages - sizeof(struct aio_ring)) / sizeof(struct io_event);
@@ -1375,18 +1375,19 @@ static ssize_t aio_fsync(struct kiocb *iocb)
 static ssize_t aio_setup_vectored_rw(int type, struct kiocb *kiocb, bool compat)
 {
 	ssize_t ret;
+	struct iovec iovstack;
 
 #ifdef CONFIG_COMPAT
 	if (compat)
 		ret = compat_rw_copy_check_uvector(type,
 				(struct compat_iovec __user *)kiocb->ki_buf,
-				kiocb->ki_nbytes, 1, &kiocb->ki_inline_vec,
+				kiocb->ki_nbytes, 1, &iovstack,
 				&kiocb->ki_iovec);
 	else
 #endif
 		ret = rw_copy_check_uvector(type,
 				(struct iovec __user *)kiocb->ki_buf,
-				kiocb->ki_nbytes, 1, &kiocb->ki_inline_vec,
+				kiocb->ki_nbytes, 1, &iovstack,
 				&kiocb->ki_iovec);
 	if (ret < 0)
 		goto out;
@@ -1395,6 +1396,10 @@ static ssize_t aio_setup_vectored_rw(int type, struct kiocb *kiocb, bool compat)
 	if (ret < 0)
 		goto out;
 
+	if (kiocb->ki_iovec == &iovstack) {
+		kiocb->ki_inline_vec = iovstack;
+		kiocb->ki_iovec = &kiocb->ki_inline_vec;
+	}
 	kiocb->ki_nr_segs = kiocb->ki_nbytes;
 	kiocb->ki_cur_seg = 0;
 	/* ki_nbytes/left now reflect bytes instead of segs */
diff --git a/fs/attr.c b/fs/attr.c
index 1449adb..a2038c2 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -102,6 +102,7 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset)
 		unsigned long limit;
 
 		limit = rlimit(RLIMIT_FSIZE);
+		gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long)offset, 1);
 		if (limit != RLIM_INFINITY && offset > limit)
 			goto out_sig;
 		if (offset > inode->i_sb->s_maxbytes)
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 3db70da..7aeec5b 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -59,7 +59,7 @@ static int autofs4_write(struct autofs_sb_info *sbi,
 {
 	unsigned long sigpipe, flags;
 	mm_segment_t fs;
-	const char *data = (const char *)addr;
+	const char __user *data = (const char __force_user *)addr;
 	ssize_t wr = 0;
 
 	sigpipe = sigismember(&current->pending.signal, SIGPIPE);
@@ -346,6 +346,10 @@ static int validate_request(struct autofs_wait_queue **wait,
 	return 1;
 }
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+static atomic_unchecked_t autofs_dummy_name_id = ATOMIC_INIT(0);
+#endif
+
 int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
 		enum autofs_notify notify)
 {
@@ -379,7 +383,12 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
 
 	/* If this is a direct mount request create a dummy name */
 	if (IS_ROOT(dentry) && autofs_type_trigger(sbi->type))
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+		/* this name does get written to userland via autofs4_write() */
+		qstr.len = sprintf(name, "%08x", atomic_inc_return_unchecked(&autofs_dummy_name_id));
+#else
 		qstr.len = sprintf(name, "%p", dentry);
+#endif
 	else {
 		qstr.len = autofs4_getpath(sbi, dentry, &name);
 		if (!qstr.len) {
diff --git a/fs/befs/endian.h b/fs/befs/endian.h
index 2722387..c8dd2a7 100644
--- a/fs/befs/endian.h
+++ b/fs/befs/endian.h
@@ -11,7 +11,7 @@
 
 #include <asm/byteorder.h>
 
-static inline u64
+static inline u64 __intentional_overflow(-1)
 fs64_to_cpu(const struct super_block *sb, fs64 n)
 {
 	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
@@ -29,7 +29,7 @@ cpu_to_fs64(const struct super_block *sb, u64 n)
 		return (__force fs64)cpu_to_be64(n);
 }
 
-static inline u32
+static inline u32 __intentional_overflow(-1)
 fs32_to_cpu(const struct super_block *sb, fs32 n)
 {
 	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 8615ee8..388ed68 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -510,7 +510,7 @@ static void befs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
 {
 	befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
 	if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
-		char *link = nd_get_link(nd);
+		const char *link = nd_get_link(nd);
 		if (!IS_ERR(link))
 			kfree(link);
 	}
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index bbc8f88..7c7ac97 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -16,6 +16,7 @@
 #include <linux/string.h>
 #include <linux/fs.h>
 #include <linux/file.h>
+#include <linux/security.h>
 #include <linux/stat.h>
 #include <linux/fcntl.h>
 #include <linux/ptrace.h>
@@ -59,6 +60,8 @@ static int aout_core_dump(struct coredump_params *cprm)
 #endif
 #       define START_STACK(u)   ((void __user *)u.start_stack)
 
+	memset(&dump, 0, sizeof(dump));
+
 	fs = get_fs();
 	set_fs(KERNEL_DS);
 	has_dumped = 1;
@@ -70,10 +73,12 @@ static int aout_core_dump(struct coredump_params *cprm)
 
 /* If the size of the dump file exceeds the rlimit, then see what would happen
    if we wrote the stack, but not the data area.  */
+	gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1);
 	if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > cprm->limit)
 		dump.u_dsize = 0;
 
 /* Make sure we have enough room to write the stack and data areas. */
+	gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1);
 	if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
 		dump.u_ssize = 0;
 
@@ -234,6 +239,8 @@ static int load_aout_binary(struct linux_binprm * bprm)
 	rlim = rlimit(RLIMIT_DATA);
 	if (rlim >= RLIM_INFINITY)
 		rlim = ~0;
+
+	gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1);
 	if (ex.a_data + ex.a_bss > rlim)
 		return -ENOMEM;
 
@@ -268,6 +275,27 @@ static int load_aout_binary(struct linux_binprm * bprm)
 
 	install_exec_creds(bprm);
 
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+	current->mm->pax_flags = 0UL;
+#endif
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) {
+		current->mm->pax_flags |= MF_PAX_PAGEEXEC;
+
+#ifdef CONFIG_PAX_EMUTRAMP
+		if (N_FLAGS(ex) & F_PAX_EMUTRAMP)
+			current->mm->pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+		if (!(N_FLAGS(ex) & F_PAX_MPROTECT))
+			current->mm->pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+	}
+#endif
+
 	if (N_MAGIC(ex) == OMAGIC) {
 		unsigned long text_addr, map_size;
 		loff_t pos;
@@ -333,7 +361,7 @@ static int load_aout_binary(struct linux_binprm * bprm)
 		}
 
 		error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
-				PROT_READ | PROT_WRITE | PROT_EXEC,
+				PROT_READ | PROT_WRITE,
 				MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
 				fd_offset + ex.a_text);
 		if (error != N_DATADDR(ex)) {
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 86af964..5d53bf6 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -34,6 +34,7 @@
 #include <linux/utsname.h>
 #include <linux/coredump.h>
 #include <linux/sched.h>
+#include <linux/xattr.h>
 #include <asm/uaccess.h>
 #include <asm/param.h>
 #include <asm/page.h>
@@ -60,6 +61,10 @@ static int elf_core_dump(struct coredump_params *cprm);
 #define elf_core_dump	NULL
 #endif
 
+#ifdef CONFIG_PAX_MPROTECT
+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags);
+#endif
+
 #if ELF_EXEC_PAGESIZE > PAGE_SIZE
 #define ELF_MIN_ALIGN	ELF_EXEC_PAGESIZE
 #else
@@ -79,6 +84,11 @@ static struct linux_binfmt elf_format = {
 	.load_binary	= load_elf_binary,
 	.load_shlib	= load_elf_library,
 	.core_dump	= elf_core_dump,
+
+#ifdef CONFIG_PAX_MPROTECT
+	.handle_mprotect= elf_handle_mprotect,
+#endif
+
 	.min_coredump	= ELF_EXEC_PAGESIZE,
 };
 
@@ -86,6 +96,8 @@ static struct linux_binfmt elf_format = {
 
 static int set_brk(unsigned long start, unsigned long end)
 {
+	unsigned long e = end;
+
 	start = ELF_PAGEALIGN(start);
 	end = ELF_PAGEALIGN(end);
 	if (end > start) {
@@ -94,7 +106,7 @@ static int set_brk(unsigned long start, unsigned long end)
 		if (BAD_ADDR(addr))
 			return addr;
 	}
-	current->mm->start_brk = current->mm->brk = end;
+	current->mm->start_brk = current->mm->brk = e;
 	return 0;
 }
 
@@ -155,12 +167,13 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 	elf_addr_t __user *u_rand_bytes;
 	const char *k_platform = ELF_PLATFORM;
 	const char *k_base_platform = ELF_BASE_PLATFORM;
-	unsigned char k_rand_bytes[16];
+	u32 k_rand_bytes[4];
 	int items;
 	elf_addr_t *elf_info;
 	int ei_index = 0;
 	const struct cred *cred = current_cred();
 	struct vm_area_struct *vma;
+	unsigned long saved_auxv[AT_VECTOR_SIZE];
 
 	/*
 	 * In some cases (e.g. Hyper-Threading), we want to avoid L1
@@ -202,8 +215,12 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 	 * Generate 16 random bytes for userspace PRNG seeding.
 	 */
 	get_random_bytes(k_rand_bytes, sizeof(k_rand_bytes));
-	u_rand_bytes = (elf_addr_t __user *)
-		       STACK_ALLOC(p, sizeof(k_rand_bytes));
+	srandom32(k_rand_bytes[0] ^ random32());
+	srandom32(k_rand_bytes[1] ^ random32());
+	srandom32(k_rand_bytes[2] ^ random32());
+	srandom32(k_rand_bytes[3] ^ random32());
+	p = STACK_ROUND(p, sizeof(k_rand_bytes));
+	u_rand_bytes = (elf_addr_t __user *) p;
 	if (__copy_to_user(u_rand_bytes, k_rand_bytes, sizeof(k_rand_bytes)))
 		return -EFAULT;
 
@@ -315,9 +332,11 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 		return -EFAULT;
 	current->mm->env_end = p;
 
+	memcpy(saved_auxv, elf_info, ei_index * sizeof(elf_addr_t));
+
 	/* Put the elf_info on the stack in the right place.  */
 	sp = (elf_addr_t __user *)envp + 1;
-	if (copy_to_user(sp, elf_info, ei_index * sizeof(elf_addr_t)))
+	if (copy_to_user(sp, saved_auxv, ei_index * sizeof(elf_addr_t)))
 		return -EFAULT;
 	return 0;
 }
@@ -385,15 +404,14 @@ static unsigned long total_mapping_size(struct elf_phdr *cmds, int nr)
    an ELF header */
 
 static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
-		struct file *interpreter, unsigned long *interp_map_addr,
-		unsigned long no_base)
+		struct file *interpreter, unsigned long no_base)
 {
 	struct elf_phdr *elf_phdata;
 	struct elf_phdr *eppnt;
-	unsigned long load_addr = 0;
+	unsigned long load_addr = 0, pax_task_size = TASK_SIZE;
 	int load_addr_set = 0;
 	unsigned long last_bss = 0, elf_bss = 0;
-	unsigned long error = ~0UL;
+	unsigned long error = -EINVAL;
 	unsigned long total_size;
 	int retval, i, size;
 
@@ -439,6 +457,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 		goto out_close;
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
 	eppnt = elf_phdata;
 	for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
 		if (eppnt->p_type == PT_LOAD) {
@@ -462,8 +485,6 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 			map_addr = elf_map(interpreter, load_addr + vaddr,
 					eppnt, elf_prot, elf_type, total_size);
 			total_size = 0;
-			if (!*interp_map_addr)
-				*interp_map_addr = map_addr;
 			error = map_addr;
 			if (BAD_ADDR(map_addr))
 				goto out_close;
@@ -482,8 +503,8 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 			k = load_addr + eppnt->p_vaddr;
 			if (BAD_ADDR(k) ||
 			    eppnt->p_filesz > eppnt->p_memsz ||
-			    eppnt->p_memsz > TASK_SIZE ||
-			    TASK_SIZE - eppnt->p_memsz < k) {
+			    eppnt->p_memsz > pax_task_size ||
+			    pax_task_size - eppnt->p_memsz < k) {
 				error = -ENOMEM;
 				goto out_close;
 			}
@@ -535,6 +556,315 @@ out:
 	return error;
 }
 
+#ifdef CONFIG_PAX_PT_PAX_FLAGS
+#ifdef CONFIG_PAX_SOFTMODE
+static unsigned long pax_parse_pt_pax_softmode(const struct elf_phdr * const elf_phdata)
+{
+	unsigned long pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (elf_phdata->p_flags & PF_PAGEEXEC)
+		pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (elf_phdata->p_flags & PF_SEGMEXEC)
+		pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	if ((elf_phdata->p_flags & PF_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
+		pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	if (elf_phdata->p_flags & PF_MPROTECT)
+		pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
+	if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP))
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+	return pax_flags;
+}
+#endif
+
+static unsigned long pax_parse_pt_pax_hardmode(const struct elf_phdr * const elf_phdata)
+{
+	unsigned long pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(elf_phdata->p_flags & PF_NOPAGEEXEC))
+		pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (!(elf_phdata->p_flags & PF_NOSEGMEXEC))
+		pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	if (!(elf_phdata->p_flags & PF_NOEMUTRAMP))
+		pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	if (!(elf_phdata->p_flags & PF_NOMPROTECT))
+		pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
+	if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP))
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+	return pax_flags;
+}
+#endif
+
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+#ifdef CONFIG_PAX_SOFTMODE
+static unsigned long pax_parse_xattr_pax_softmode(unsigned long pax_flags_softmode)
+{
+	unsigned long pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (pax_flags_softmode & MF_PAX_PAGEEXEC)
+		pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (pax_flags_softmode & MF_PAX_SEGMEXEC)
+		pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	if ((pax_flags_softmode & MF_PAX_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
+		pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	if (pax_flags_softmode & MF_PAX_MPROTECT)
+		pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
+	if (randomize_va_space && (pax_flags_softmode & MF_PAX_RANDMMAP))
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+	return pax_flags;
+}
+#endif
+
+static unsigned long pax_parse_xattr_pax_hardmode(unsigned long pax_flags_hardmode)
+{
+	unsigned long pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(pax_flags_hardmode & MF_PAX_PAGEEXEC))
+		pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (!(pax_flags_hardmode & MF_PAX_SEGMEXEC))
+		pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	if (!(pax_flags_hardmode & MF_PAX_EMUTRAMP))
+		pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	if (!(pax_flags_hardmode & MF_PAX_MPROTECT))
+		pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
+	if (randomize_va_space && !(pax_flags_hardmode & MF_PAX_RANDMMAP))
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+	return pax_flags;
+}
+#endif
+
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex)
+{
+	unsigned long pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_EI_PAX
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC))
+		pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC))
+		pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP))
+		pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT))
+		pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#ifdef CONFIG_PAX_ASLR
+	if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP))
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+#else
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (randomize_va_space)
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+#endif
+
+	return pax_flags;
+}
+
+static unsigned long pax_parse_pt_pax(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata)
+{
+
+#ifdef CONFIG_PAX_PT_PAX_FLAGS
+	unsigned long i;
+
+	for (i = 0UL; i < elf_ex->e_phnum; i++)
+		if (elf_phdata[i].p_type == PT_PAX_FLAGS) {
+			if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) ||
+			    ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) ||
+			    ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) ||
+			    ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) ||
+			    ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP)))
+				return ~0UL;
+
+#ifdef CONFIG_PAX_SOFTMODE
+			if (pax_softmode)
+				return pax_parse_pt_pax_softmode(&elf_phdata[i]);
+			else
+#endif
+
+				return pax_parse_pt_pax_hardmode(&elf_phdata[i]);
+			break;
+		}
+#endif
+
+	return ~0UL;
+}
+
+static unsigned long pax_parse_xattr_pax(struct file * const file)
+{
+
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+	ssize_t xattr_size, i;
+	unsigned char xattr_value[sizeof("pemrs") - 1];
+	unsigned long pax_flags_hardmode = 0UL, pax_flags_softmode = 0UL;
+
+	xattr_size = pax_getxattr(file->f_path.dentry, xattr_value, sizeof xattr_value);
+	if (xattr_size <= 0 || xattr_size > sizeof xattr_value)
+		return ~0UL;
+
+	for (i = 0; i < xattr_size; i++)
+		switch (xattr_value[i]) {
+		default:
+			return ~0UL;
+
+#define parse_flag(option1, option2, flag)			\
+		case option1:					\
+			if (pax_flags_hardmode & MF_PAX_##flag)	\
+				return ~0UL;			\
+			pax_flags_hardmode |= MF_PAX_##flag;	\
+			break;					\
+		case option2:					\
+			if (pax_flags_softmode & MF_PAX_##flag)	\
+				return ~0UL;			\
+			pax_flags_softmode |= MF_PAX_##flag;	\
+			break;
+
+		parse_flag('p', 'P', PAGEEXEC);
+		parse_flag('e', 'E', EMUTRAMP);
+		parse_flag('m', 'M', MPROTECT);
+		parse_flag('r', 'R', RANDMMAP);
+		parse_flag('s', 'S', SEGMEXEC);
+
+#undef parse_flag
+		}
+
+	if (pax_flags_hardmode & pax_flags_softmode)
+		return ~0UL;
+
+#ifdef CONFIG_PAX_SOFTMODE
+	if (pax_softmode)
+		return pax_parse_xattr_pax_softmode(pax_flags_softmode);
+	else
+#endif
+
+		return pax_parse_xattr_pax_hardmode(pax_flags_hardmode);
+#else
+	return ~0UL;
+#endif
+
+}
+
+static long pax_parse_pax_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata, struct file * const file)
+{
+	unsigned long pax_flags, pt_pax_flags, xattr_pax_flags;
+
+	pax_flags = pax_parse_ei_pax(elf_ex);
+	pt_pax_flags = pax_parse_pt_pax(elf_ex, elf_phdata);
+	xattr_pax_flags = pax_parse_xattr_pax(file);
+
+	if (pt_pax_flags == ~0UL)
+		pt_pax_flags = xattr_pax_flags;
+	else if (xattr_pax_flags == ~0UL)
+		xattr_pax_flags = pt_pax_flags;
+	if (pt_pax_flags != xattr_pax_flags)
+		return -EINVAL;
+	if (pt_pax_flags != ~0UL)
+		pax_flags = pt_pax_flags;
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
+	if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
+		if ((__supported_pte_mask & _PAGE_NX))
+			pax_flags &= ~MF_PAX_SEGMEXEC;
+		else
+			pax_flags &= ~MF_PAX_PAGEEXEC;
+	}
+#endif
+
+	if (0 > pax_check_flags(&pax_flags))
+		return -EINVAL;
+
+	current->mm->pax_flags = pax_flags;
+	return 0;
+}
+#endif
+
 /*
  * These are the functions used to load ELF style executables and shared
  * libraries.  There is no binary dependent code anywhere else.
@@ -551,6 +881,11 @@ static unsigned long randomize_stack_top(unsigned long stack_top)
 {
 	unsigned int random_variable = 0;
 
+#ifdef CONFIG_PAX_RANDUSTACK
+	if (current->mm->pax_flags & MF_PAX_RANDMMAP)
+		return stack_top - current->mm->delta_stack;
+#endif
+
 	if ((current->flags & PF_RANDOMIZE) &&
 		!(current->personality & ADDR_NO_RANDOMIZE)) {
 		random_variable = get_random_int() & STACK_RND_MASK;
@@ -569,7 +904,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
  	unsigned long load_addr = 0, load_bias = 0;
 	int load_addr_set = 0;
 	char * elf_interpreter = NULL;
-	unsigned long error;
+	unsigned long error = 0;
 	struct elf_phdr *elf_ppnt, *elf_phdata;
 	unsigned long elf_bss, elf_brk;
 	int retval, i;
@@ -579,12 +914,12 @@ static int load_elf_binary(struct linux_binprm *bprm)
 	unsigned long start_code, end_code, start_data, end_data;
 	unsigned long reloc_func_desc __maybe_unused = 0;
 	int executable_stack = EXSTACK_DEFAULT;
-	unsigned long def_flags = 0;
 	struct pt_regs *regs = current_pt_regs();
 	struct {
 		struct elfhdr elf_ex;
 		struct elfhdr interp_elf_ex;
 	} *loc;
+	unsigned long pax_task_size = TASK_SIZE;
 
 	loc = kmalloc(sizeof(*loc), GFP_KERNEL);
 	if (!loc) {
@@ -720,11 +1055,81 @@ static int load_elf_binary(struct linux_binprm *bprm)
 		goto out_free_dentry;
 
 	/* OK, This is the point of no return */
-	current->mm->def_flags = def_flags;
+
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+	current->mm->pax_flags = 0UL;
+#endif
+
+#ifdef CONFIG_PAX_DLRESOLVE
+	current->mm->call_dl_resolve = 0UL;
+#endif
+
+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
+	current->mm->call_syscall = 0UL;
+#endif
+
+#ifdef CONFIG_PAX_ASLR
+	current->mm->delta_mmap = 0UL;
+	current->mm->delta_stack = 0UL;
+#endif
+
+	current->mm->def_flags = 0;
+
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+	if (0 > pax_parse_pax_flags(&loc->elf_ex, elf_phdata, bprm->file)) {
+		send_sig(SIGKILL, current, 0);
+		goto out_free_dentry;
+	}
+#endif
+
+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
+	pax_set_initial_flags(bprm);
+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
+	if (pax_set_initial_flags_func)
+		(pax_set_initial_flags_func)(bprm);
+#endif
+
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+	if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !(__supported_pte_mask & _PAGE_NX)) {
+		current->mm->context.user_cs_limit = PAGE_SIZE;
+		current->mm->def_flags |= VM_PAGEEXEC | VM_NOHUGEPAGE;
+	}
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
+		current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE;
+		current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE;
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+		current->mm->def_flags |= VM_NOHUGEPAGE;
+	}
+#endif
+
+#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC)
+	if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
+		set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu());
+		put_cpu();
+	}
+#endif
 
 	/* Do this immediately, since STACK_TOP as used in setup_arg_pages
 	   may depend on the personality.  */
 	SET_PERSONALITY(loc->elf_ex);
+
+#ifdef CONFIG_PAX_ASLR
+	if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
+		current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT;
+		current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT;
+	}
+#endif
+
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+	if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
+		executable_stack = EXSTACK_DISABLE_X;
+		current->personality &= ~READ_IMPLIES_EXEC;
+	} else
+#endif
+
 	if (elf_read_implies_exec(loc->elf_ex, executable_stack))
 		current->personality |= READ_IMPLIES_EXEC;
 
@@ -815,6 +1220,20 @@ static int load_elf_binary(struct linux_binprm *bprm)
 #else
 			load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
 #endif
+
+#ifdef CONFIG_PAX_RANDMMAP
+			/* PaX: randomize base address at the default exe base if requested */
+			if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) {
+#ifdef CONFIG_SPARC64
+				load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1);
+#else
+				load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT;
+#endif
+				load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias);
+				elf_flags |= MAP_FIXED;
+			}
+#endif
+
 		}
 
 		error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt,
@@ -847,9 +1266,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
 		 * allowed task size. Note that p_filesz must always be
 		 * <= p_memsz so it is only necessary to check p_memsz.
 		 */
-		if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
-		    elf_ppnt->p_memsz > TASK_SIZE ||
-		    TASK_SIZE - elf_ppnt->p_memsz < k) {
+		if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
+		    elf_ppnt->p_memsz > pax_task_size ||
+		    pax_task_size - elf_ppnt->p_memsz < k) {
 			/* set_brk can never work. Avoid overflows. */
 			send_sig(SIGKILL, current, 0);
 			retval = -EINVAL;
@@ -888,17 +1307,45 @@ static int load_elf_binary(struct linux_binprm *bprm)
 		goto out_free_dentry;
 	}
 	if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
-		send_sig(SIGSEGV, current, 0);
-		retval = -EFAULT; /* Nobody gets to see this, but.. */
-		goto out_free_dentry;
+		/*
+		 * This bss-zeroing can fail if the ELF
+		 * file specifies odd protections. So
+		 * we don't check the return value
+		 */
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
+		unsigned long start, size, flags;
+		vm_flags_t vm_flags;
+
+		start = ELF_PAGEALIGN(elf_brk);
+		size = PAGE_SIZE + ((pax_get_random_long() & ((1UL << 22) - 1UL)) << 4);
+		flags = MAP_FIXED | MAP_PRIVATE;
+		vm_flags = VM_DONTEXPAND | VM_DONTDUMP;
+
+		down_write(&current->mm->mmap_sem);
+		start = get_unmapped_area(NULL, start, PAGE_ALIGN(size), 0, flags);
+		retval = -ENOMEM;
+		if (!IS_ERR_VALUE(start) && !find_vma_intersection(current->mm, start, start + size + PAGE_SIZE)) {
+//			if (current->personality & ADDR_NO_RANDOMIZE)
+//				vm_flags |= VM_READ | VM_MAYREAD;
+			start = mmap_region(NULL, start, PAGE_ALIGN(size), vm_flags, 0);
+			retval = IS_ERR_VALUE(start) ? start : 0;
+		}
+		up_write(&current->mm->mmap_sem);
+		if (retval == 0)
+			retval = set_brk(start + size, start + size + PAGE_SIZE);
+		if (retval < 0) {
+			send_sig(SIGKILL, current, 0);
+			goto out_free_dentry;
+		}
+	}
+#endif
+
 	if (elf_interpreter) {
-		unsigned long interp_map_addr = 0;
-
 		elf_entry = load_elf_interp(&loc->interp_elf_ex,
 					    interpreter,
-					    &interp_map_addr,
 					    load_bias);
 		if (!IS_ERR((void *)elf_entry)) {
 			/*
@@ -1120,7 +1567,7 @@ static bool always_dump_vma(struct vm_area_struct *vma)
  * Decide what to dump of a segment, part, all or none.
  */
 static unsigned long vma_dump_size(struct vm_area_struct *vma,
-				   unsigned long mm_flags)
+				   unsigned long mm_flags, long signr)
 {
 #define FILTER(type)	(mm_flags & (1UL << MMF_DUMP_##type))
 
@@ -1158,7 +1605,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
 	if (vma->vm_file == NULL)
 		return 0;
 
-	if (FILTER(MAPPED_PRIVATE))
+	if (signr == SIGKILL || FILTER(MAPPED_PRIVATE))
 		goto whole;
 
 	/*
@@ -1383,9 +1830,9 @@ static void fill_auxv_note(struct memelfnote *note, struct mm_struct *mm)
 {
 	elf_addr_t *auxv = (elf_addr_t *) mm->saved_auxv;
 	int i = 0;
-	do
+	do {
 		i += 2;
-	while (auxv[i - 2] != AT_NULL);
+	} while (auxv[i - 2] != AT_NULL);
 	fill_note(note, "CORE", NT_AUXV, i * sizeof(elf_addr_t), auxv);
 }
 
@@ -1394,7 +1841,7 @@ static void fill_siginfo_note(struct memelfnote *note, user_siginfo_t *csigdata,
 {
 	mm_segment_t old_fs = get_fs();
 	set_fs(KERNEL_DS);
-	copy_siginfo_to_user((user_siginfo_t __user *) csigdata, siginfo);
+	copy_siginfo_to_user((user_siginfo_t __force_user *) csigdata, siginfo);
 	set_fs(old_fs);
 	fill_note(note, "CORE", NT_SIGINFO, sizeof(*csigdata), csigdata);
 }
@@ -2015,14 +2462,14 @@ static void fill_extnum_info(struct elfhdr *elf, struct elf_shdr *shdr4extnum,
 }
 
 static size_t elf_core_vma_data_size(struct vm_area_struct *gate_vma,
-				     unsigned long mm_flags)
+				     struct coredump_params *cprm)
 {
 	struct vm_area_struct *vma;
 	size_t size = 0;
 
 	for (vma = first_vma(current, gate_vma); vma != NULL;
 	     vma = next_vma(vma, gate_vma))
-		size += vma_dump_size(vma, mm_flags);
+		size += vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
 	return size;
 }
 
@@ -2116,7 +2563,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 
 	dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE);
 
-	offset += elf_core_vma_data_size(gate_vma, cprm->mm_flags);
+	offset += elf_core_vma_data_size(gate_vma, cprm);
 	offset += elf_core_extra_data_size();
 	e_shoff = offset;
 
@@ -2130,10 +2577,12 @@ static int elf_core_dump(struct coredump_params *cprm)
 	offset = dataoff;
 
 	size += sizeof(*elf);
+	gr_learn_resource(current, RLIMIT_CORE, size, 1);
 	if (size > cprm->limit || !dump_write(cprm->file, elf, sizeof(*elf)))
 		goto end_coredump;
 
 	size += sizeof(*phdr4note);
+	gr_learn_resource(current, RLIMIT_CORE, size, 1);
 	if (size > cprm->limit
 	    || !dump_write(cprm->file, phdr4note, sizeof(*phdr4note)))
 		goto end_coredump;
@@ -2147,7 +2596,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 		phdr.p_offset = offset;
 		phdr.p_vaddr = vma->vm_start;
 		phdr.p_paddr = 0;
-		phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags);
+		phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
 		phdr.p_memsz = vma->vm_end - vma->vm_start;
 		offset += phdr.p_filesz;
 		phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0;
@@ -2158,6 +2607,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 		phdr.p_align = ELF_EXEC_PAGESIZE;
 
 		size += sizeof(phdr);
+		gr_learn_resource(current, RLIMIT_CORE, size, 1);
 		if (size > cprm->limit
 		    || !dump_write(cprm->file, &phdr, sizeof(phdr)))
 			goto end_coredump;
@@ -2182,7 +2632,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 		unsigned long addr;
 		unsigned long end;
 
-		end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags);
+		end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
 
 		for (addr = vma->vm_start; addr < end; addr += PAGE_SIZE) {
 			struct page *page;
@@ -2191,6 +2641,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 			page = get_dump_page(addr);
 			if (page) {
 				void *kaddr = kmap(page);
+				gr_learn_resource(current, RLIMIT_CORE, size + PAGE_SIZE, 1);
 				stop = ((size += PAGE_SIZE) > cprm->limit) ||
 					!dump_write(cprm->file, kaddr,
 						    PAGE_SIZE);
@@ -2208,6 +2659,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 
 	if (e_phnum == PN_XNUM) {
 		size += sizeof(*shdr4extnum);
+		gr_learn_resource(current, RLIMIT_CORE, size, 1);
 		if (size > cprm->limit
 		    || !dump_write(cprm->file, shdr4extnum,
 				   sizeof(*shdr4extnum)))
@@ -2228,6 +2680,97 @@ out:
 
 #endif		/* CONFIG_ELF_CORE */
 
+#ifdef CONFIG_PAX_MPROTECT
+/* PaX: non-PIC ELF libraries need relocations on their executable segments
+ * therefore we'll grant them VM_MAYWRITE once during their life. Similarly
+ * we'll remove VM_MAYWRITE for good on RELRO segments.
+ *
+ * The checks favour ld-linux.so behaviour which operates on a per ELF segment
+ * basis because we want to allow the common case and not the special ones.
+ */
+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags)
+{
+	struct elfhdr elf_h;
+	struct elf_phdr elf_p;
+	unsigned long i;
+	unsigned long oldflags;
+	bool is_textrel_rw, is_textrel_rx, is_relro;
+
+	if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT))
+		return;
+
+	oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ);
+	newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ;
+
+#ifdef CONFIG_PAX_ELFRELOCS
+	/* possible TEXTREL */
+	is_textrel_rw = vma->vm_file && !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ);
+	is_textrel_rx = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ);
+#else
+	is_textrel_rw = false;
+	is_textrel_rx = false;
+#endif
+
+	/* possible RELRO */
+	is_relro = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ);
+
+	if (!is_textrel_rw && !is_textrel_rx && !is_relro)
+		return;
+
+	if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
+	    memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
+
+#ifdef CONFIG_PAX_ETEXECRELOCS
+	    ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
+#else
+	    ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) ||
+#endif
+
+	    (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
+	    !elf_check_arch(&elf_h) ||
+	    elf_h.e_phentsize != sizeof(struct elf_phdr) ||
+	    elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
+		return;
+
+	for (i = 0UL; i < elf_h.e_phnum; i++) {
+		if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
+			return;
+		switch (elf_p.p_type) {
+		case PT_DYNAMIC:
+			if (!is_textrel_rw && !is_textrel_rx)
+				continue;
+			i = 0UL;
+			while ((i+1) * sizeof(elf_dyn) <= elf_p.p_filesz) {
+				elf_dyn dyn;
+
+				if (sizeof(dyn) != kernel_read(vma->vm_file, elf_p.p_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn)))
+					return;
+				if (dyn.d_tag == DT_NULL)
+					return;
+				if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) {
+					gr_log_textrel(vma);
+					if (is_textrel_rw)
+						vma->vm_flags |= VM_MAYWRITE;
+					else
+						/* PaX: disallow write access after relocs are done, hopefully noone else needs it... */
+						vma->vm_flags &= ~VM_MAYWRITE;
+					return;
+				}
+				i++;
+			}
+			return;
+
+		case PT_GNU_RELRO:
+			if (!is_relro)
+				continue;
+			if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start)
+				vma->vm_flags &= ~VM_MAYWRITE;
+			return;
+		}
+	}
+}
+#endif
+
 static int __init init_elf_binfmt(void)
 {
 	register_binfmt(&elf_format);
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 2036d21..b0430d0 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -562,7 +562,9 @@ static int load_flat_file(struct linux_binprm * bprm,
 				realdatastart = (unsigned long) -ENOMEM;
 			printk("Unable to allocate RAM for process data, errno %d\n",
 					(int)-realdatastart);
+			down_write(&current->mm->mmap_sem);
 			vm_munmap(textpos, text_len);
+			up_write(&current->mm->mmap_sem);
 			ret = realdatastart;
 			goto err;
 		}
@@ -586,8 +588,10 @@ static int load_flat_file(struct linux_binprm * bprm,
 		}
 		if (IS_ERR_VALUE(result)) {
 			printk("Unable to read data+bss, errno %d\n", (int)-result);
+			down_write(&current->mm->mmap_sem);
 			vm_munmap(textpos, text_len);
 			vm_munmap(realdatastart, len);
+			up_write(&current->mm->mmap_sem);
 			ret = result;
 			goto err;
 		}
@@ -654,8 +658,10 @@ static int load_flat_file(struct linux_binprm * bprm,
 		}
 		if (IS_ERR_VALUE(result)) {
 			printk("Unable to read code+data+bss, errno %d\n",(int)-result);
+			down_write(&current->mm->mmap_sem);
 			vm_munmap(textpos, text_len + data_len + extra +
 				MAX_SHARED_LIBS * sizeof(unsigned long));
+			up_write(&current->mm->mmap_sem);
 			ret = result;
 			goto err;
 		}
diff --git a/fs/bio.c b/fs/bio.c
index b96fc6c..431d628 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -818,7 +818,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
 		/*
 		 * Overflow, abort
 		 */
-		if (end < start)
+		if (end < start || end - start > INT_MAX - nr_pages)
 			return ERR_PTR(-EINVAL);
 
 		nr_pages += end - start;
@@ -952,7 +952,7 @@ static struct bio *__bio_map_user_iov(struct request_queue *q,
 		/*
 		 * Overflow, abort
 		 */
-		if (end < start)
+		if (end < start || end - start > INT_MAX - nr_pages)
 			return ERR_PTR(-EINVAL);
 
 		nr_pages += end - start;
@@ -1214,7 +1214,7 @@ static void bio_copy_kern_endio(struct bio *bio, int err)
 	const int read = bio_data_dir(bio) == READ;
 	struct bio_map_data *bmd = bio->bi_private;
 	int i;
-	char *p = bmd->sgvecs[0].iov_base;
+	char *p = (char __force_kernel *)bmd->sgvecs[0].iov_base;
 
 	__bio_for_each_segment(bvec, bio, i, 0) {
 		char *addr = page_address(bvec->bv_page);
diff --git a/fs/block_dev.c b/fs/block_dev.c
index aae187a..fd790ba 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -652,7 +652,7 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,
 	else if (bdev->bd_contains == bdev)
 		return true;  	 /* is a whole device which isn't held */
 
-	else if (whole->bd_holder == bd_may_claim)
+	else if (whole->bd_holder == (void *)bd_may_claim)
 		return true; 	 /* is a partition of a device that is being partitioned */
 	else if (whole->bd_holder != NULL)
 		return false;	 /* is a partition of a held device */
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index ca9d8f1..8c0142d 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1036,9 +1036,12 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
 		free_extent_buffer(buf);
 		add_root_to_dirty_list(root);
 	} else {
-		if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID)
-			parent_start = parent->start;
-		else
+		if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) {
+			if (parent)
+				parent_start = parent->start;
+			else
+				parent_start = 0;
+		} else
 			parent_start = 0;
 
 		WARN_ON(trans->transid != btrfs_header_generation(parent));
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index f49b62f..07834ab 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3077,9 +3077,12 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
 	for (i = 0; i < num_types; i++) {
 		struct btrfs_space_info *tmp;
 
+		/* Don't copy in more than we allocated */
 		if (!slot_count)
 			break;
 
+		slot_count--;
+
 		info = NULL;
 		rcu_read_lock();
 		list_for_each_entry_rcu(tmp, &root->fs_info->space_info,
@@ -3101,10 +3104,7 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
 				memcpy(dest, &space, sizeof(space));
 				dest++;
 				space_args.total_spaces++;
-				slot_count--;
 			}
-			if (!slot_count)
-				break;
 		}
 		up_read(&info->groups_sem);
 	}
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f6b8859..54fe8c5 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -266,7 +266,7 @@ void __btrfs_abort_transaction(struct btrfs_trans_handle *trans,
 			     function, line, errstr);
 		return;
 	}
-	ACCESS_ONCE(trans->transaction->aborted) = errno;
+	ACCESS_ONCE_RW(trans->transaction->aborted) = errno;
 	__btrfs_std_error(root->fs_info, function, line, errno, NULL);
 }
 /*
diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
index 622f469..e8d2d55 100644
--- a/fs/cachefiles/bind.c
+++ b/fs/cachefiles/bind.c
@@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args)
 	       args);
 
 	/* start by checking things over */
-	ASSERT(cache->fstop_percent >= 0 &&
-	       cache->fstop_percent < cache->fcull_percent &&
+	ASSERT(cache->fstop_percent < cache->fcull_percent &&
 	       cache->fcull_percent < cache->frun_percent &&
 	       cache->frun_percent  < 100);
 
-	ASSERT(cache->bstop_percent >= 0 &&
-	       cache->bstop_percent < cache->bcull_percent &&
+	ASSERT(cache->bstop_percent < cache->bcull_percent &&
 	       cache->bcull_percent < cache->brun_percent &&
 	       cache->brun_percent  < 100);
 
diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
index 0a1467b..6a53245 100644
--- a/fs/cachefiles/daemon.c
+++ b/fs/cachefiles/daemon.c
@@ -196,7 +196,7 @@ static ssize_t cachefiles_daemon_read(struct file *file, char __user *_buffer,
 	if (n > buflen)
 		return -EMSGSIZE;
 
-	if (copy_to_user(_buffer, buffer, n) != 0)
+	if (n > sizeof(buffer) || copy_to_user(_buffer, buffer, n) != 0)
 		return -EFAULT;
 
 	return n;
@@ -222,7 +222,7 @@ static ssize_t cachefiles_daemon_write(struct file *file,
 	if (test_bit(CACHEFILES_DEAD, &cache->flags))
 		return -EIO;
 
-	if (datalen < 0 || datalen > PAGE_SIZE - 1)
+	if (datalen > PAGE_SIZE - 1)
 		return -EOPNOTSUPP;
 
 	/* drag the command string into the kernel so we can parse it */
@@ -386,7 +386,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args)
 	if (args[0] != '%' || args[1] != '\0')
 		return -EINVAL;
 
-	if (fstop < 0 || fstop >= cache->fcull_percent)
+	if (fstop >= cache->fcull_percent)
 		return cachefiles_daemon_range_error(cache, args);
 
 	cache->fstop_percent = fstop;
@@ -458,7 +458,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args)
 	if (args[0] != '%' || args[1] != '\0')
 		return -EINVAL;
 
-	if (bstop < 0 || bstop >= cache->bcull_percent)
+	if (bstop >= cache->bcull_percent)
 		return cachefiles_daemon_range_error(cache, args);
 
 	cache->bstop_percent = bstop;
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index 4938251..7e01445 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -59,7 +59,7 @@ struct cachefiles_cache {
 	wait_queue_head_t		daemon_pollwq;	/* poll waitqueue for daemon */
 	struct rb_root			active_nodes;	/* active nodes (can't be culled) */
 	rwlock_t			active_lock;	/* lock for active_nodes */
-	atomic_t			gravecounter;	/* graveyard uniquifier */
+	atomic_unchecked_t		gravecounter;	/* graveyard uniquifier */
 	unsigned			frun_percent;	/* when to stop culling (% files) */
 	unsigned			fcull_percent;	/* when to start culling (% files) */
 	unsigned			fstop_percent;	/* when to stop allocating (% files) */
@@ -171,19 +171,19 @@ extern int cachefiles_check_in_use(struct cachefiles_cache *cache,
  * proc.c
  */
 #ifdef CONFIG_CACHEFILES_HISTOGRAM
-extern atomic_t cachefiles_lookup_histogram[HZ];
-extern atomic_t cachefiles_mkdir_histogram[HZ];
-extern atomic_t cachefiles_create_histogram[HZ];
+extern atomic_unchecked_t cachefiles_lookup_histogram[HZ];
+extern atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
+extern atomic_unchecked_t cachefiles_create_histogram[HZ];
 
 extern int __init cachefiles_proc_init(void);
 extern void cachefiles_proc_cleanup(void);
 static inline
-void cachefiles_hist(atomic_t histogram[], unsigned long start_jif)
+void cachefiles_hist(atomic_unchecked_t histogram[], unsigned long start_jif)
 {
 	unsigned long jif = jiffies - start_jif;
 	if (jif >= HZ)
 		jif = HZ - 1;
-	atomic_inc(&histogram[jif]);
+	atomic_inc_unchecked(&histogram[jif]);
 }
 
 #else
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 8c01c5fc..15f982e 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -317,7 +317,7 @@ try_again:
 	/* first step is to make up a grave dentry in the graveyard */
 	sprintf(nbuffer, "%08x%08x",
 		(uint32_t) get_seconds(),
-		(uint32_t) atomic_inc_return(&cache->gravecounter));
+		(uint32_t) atomic_inc_return_unchecked(&cache->gravecounter));
 
 	/* do the multiway lock magic */
 	trap = lock_rename(cache->graveyard, dir);
diff --git a/fs/cachefiles/proc.c b/fs/cachefiles/proc.c
index eccd339..4c1d995 100644
--- a/fs/cachefiles/proc.c
+++ b/fs/cachefiles/proc.c
@@ -14,9 +14,9 @@
 #include <linux/seq_file.h>
 #include "internal.h"
 
-atomic_t cachefiles_lookup_histogram[HZ];
-atomic_t cachefiles_mkdir_histogram[HZ];
-atomic_t cachefiles_create_histogram[HZ];
+atomic_unchecked_t cachefiles_lookup_histogram[HZ];
+atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
+atomic_unchecked_t cachefiles_create_histogram[HZ];
 
 /*
  * display the latency histogram
@@ -35,9 +35,9 @@ static int cachefiles_histogram_show(struct seq_file *m, void *v)
 		return 0;
 	default:
 		index = (unsigned long) v - 3;
-		x = atomic_read(&cachefiles_lookup_histogram[index]);
-		y = atomic_read(&cachefiles_mkdir_histogram[index]);
-		z = atomic_read(&cachefiles_create_histogram[index]);
+		x = atomic_read_unchecked(&cachefiles_lookup_histogram[index]);
+		y = atomic_read_unchecked(&cachefiles_mkdir_histogram[index]);
+		z = atomic_read_unchecked(&cachefiles_create_histogram[index]);
 		if (x == 0 && y == 0 && z == 0)
 			return 0;
 
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 4809922..aab2c39 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -965,7 +965,7 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
 			old_fs = get_fs();
 			set_fs(KERNEL_DS);
 			ret = file->f_op->write(
-				file, (const void __user *) data, len, &pos);
+				file, (const void __force_user *) data, len, &pos);
 			set_fs(old_fs);
 			kunmap(page);
 			if (ret != len)
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 6d797f4..0ace2e5 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -243,7 +243,7 @@ static int ceph_readdir(struct file *filp, void *dirent, filldir_t filldir)
 	struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
 	struct ceph_mds_client *mdsc = fsc->mdsc;
 	unsigned frag = fpos_frag(filp->f_pos);
-	int off = fpos_off(filp->f_pos);
+	unsigned int off = fpos_off(filp->f_pos);
 	int err;
 	u32 ftype;
 	struct ceph_mds_reply_info_parsed *rinfo;
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index d9ea6ed..1e6c8ac 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -267,8 +267,8 @@ static ssize_t cifs_stats_proc_write(struct file *file,
 
 	if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
 #ifdef CONFIG_CIFS_STATS2
-		atomic_set(&totBufAllocCount, 0);
-		atomic_set(&totSmBufAllocCount, 0);
+		atomic_set_unchecked(&totBufAllocCount, 0);
+		atomic_set_unchecked(&totSmBufAllocCount, 0);
 #endif /* CONFIG_CIFS_STATS2 */
 		spin_lock(&cifs_tcp_ses_lock);
 		list_for_each(tmp1, &cifs_tcp_ses_list) {
@@ -281,7 +281,7 @@ static ssize_t cifs_stats_proc_write(struct file *file,
 					tcon = list_entry(tmp3,
 							  struct cifs_tcon,
 							  tcon_list);
-					atomic_set(&tcon->num_smbs_sent, 0);
+					atomic_set_unchecked(&tcon->num_smbs_sent, 0);
 					if (server->ops->clear_stats)
 						server->ops->clear_stats(tcon);
 				}
@@ -313,8 +313,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
 			smBufAllocCount.counter, cifs_min_small);
 #ifdef CONFIG_CIFS_STATS2
 	seq_printf(m, "Total Large %d Small %d Allocations\n",
-				atomic_read(&totBufAllocCount),
-				atomic_read(&totSmBufAllocCount));
+				atomic_read_unchecked(&totBufAllocCount),
+				atomic_read_unchecked(&totSmBufAllocCount));
 #endif /* CONFIG_CIFS_STATS2 */
 
 	seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
@@ -343,7 +343,7 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
 				if (tcon->need_reconnect)
 					seq_puts(m, "\tDISCONNECTED ");
 				seq_printf(m, "\nSMBs: %d",
-					   atomic_read(&tcon->num_smbs_sent));
+					   atomic_read_unchecked(&tcon->num_smbs_sent));
 				if (server->ops->print_stats)
 					server->ops->print_stats(m, tcon);
 			}
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 345fc89..b2acae5 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1033,7 +1033,7 @@ cifs_init_request_bufs(void)
 /*	cERROR(1, "CIFSMaxBufSize %d 0x%x",CIFSMaxBufSize,CIFSMaxBufSize); */
 	cifs_req_cachep = kmem_cache_create("cifs_request",
 					    CIFSMaxBufSize + max_hdr_size, 0,
-					    SLAB_HWCACHE_ALIGN, NULL);
+					    SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, NULL);
 	if (cifs_req_cachep == NULL)
 		return -ENOMEM;
 
@@ -1060,7 +1060,7 @@ cifs_init_request_bufs(void)
 	efficient to alloc 1 per page off the slab compared to 17K (5page)
 	alloc of large cifs buffers even when page debugging is on */
 	cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq",
-			MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN,
+			MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN | SLAB_USERCOPY,
 			NULL);
 	if (cifs_sm_req_cachep == NULL) {
 		mempool_destroy(cifs_req_poolp);
@@ -1145,8 +1145,8 @@ init_cifs(void)
 	atomic_set(&bufAllocCount, 0);
 	atomic_set(&smBufAllocCount, 0);
 #ifdef CONFIG_CIFS_STATS2
-	atomic_set(&totBufAllocCount, 0);
-	atomic_set(&totSmBufAllocCount, 0);
+	atomic_set_unchecked(&totBufAllocCount, 0);
+	atomic_set_unchecked(&totSmBufAllocCount, 0);
 #endif /* CONFIG_CIFS_STATS2 */
 
 	atomic_set(&midCount, 0);
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 4f07f6f..55de8ce 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -751,35 +751,35 @@ struct cifs_tcon {
 	__u16 Flags;		/* optional support bits */
 	enum statusEnum tidStatus;
 #ifdef CONFIG_CIFS_STATS
-	atomic_t num_smbs_sent;
+	atomic_unchecked_t num_smbs_sent;
 	union {
 		struct {
-			atomic_t num_writes;
-			atomic_t num_reads;
-			atomic_t num_flushes;
-			atomic_t num_oplock_brks;
-			atomic_t num_opens;
-			atomic_t num_closes;
-			atomic_t num_deletes;
-			atomic_t num_mkdirs;
-			atomic_t num_posixopens;
-			atomic_t num_posixmkdirs;
-			atomic_t num_rmdirs;
-			atomic_t num_renames;
-			atomic_t num_t2renames;
-			atomic_t num_ffirst;
-			atomic_t num_fnext;
-			atomic_t num_fclose;
-			atomic_t num_hardlinks;
-			atomic_t num_symlinks;
-			atomic_t num_locks;
-			atomic_t num_acl_get;
-			atomic_t num_acl_set;
+			atomic_unchecked_t num_writes;
+			atomic_unchecked_t num_reads;
+			atomic_unchecked_t num_flushes;
+			atomic_unchecked_t num_oplock_brks;
+			atomic_unchecked_t num_opens;
+			atomic_unchecked_t num_closes;
+			atomic_unchecked_t num_deletes;
+			atomic_unchecked_t num_mkdirs;
+			atomic_unchecked_t num_posixopens;
+			atomic_unchecked_t num_posixmkdirs;
+			atomic_unchecked_t num_rmdirs;
+			atomic_unchecked_t num_renames;
+			atomic_unchecked_t num_t2renames;
+			atomic_unchecked_t num_ffirst;
+			atomic_unchecked_t num_fnext;
+			atomic_unchecked_t num_fclose;
+			atomic_unchecked_t num_hardlinks;
+			atomic_unchecked_t num_symlinks;
+			atomic_unchecked_t num_locks;
+			atomic_unchecked_t num_acl_get;
+			atomic_unchecked_t num_acl_set;
 		} cifs_stats;
 #ifdef CONFIG_CIFS_SMB2
 		struct {
-			atomic_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
-			atomic_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
+			atomic_unchecked_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
+			atomic_unchecked_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
 		} smb2_stats;
 #endif /* CONFIG_CIFS_SMB2 */
 	} stats;
@@ -1080,7 +1080,7 @@ convert_delimiter(char *path, char delim)
 }
 
 #ifdef CONFIG_CIFS_STATS
-#define cifs_stats_inc atomic_inc
+#define cifs_stats_inc atomic_inc_unchecked
 
 static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon,
 					    unsigned int bytes)
@@ -1445,8 +1445,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
 /* Various Debug counters */
 GLOBAL_EXTERN atomic_t bufAllocCount;    /* current number allocated  */
 #ifdef CONFIG_CIFS_STATS2
-GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
-GLOBAL_EXTERN atomic_t totSmBufAllocCount;
+GLOBAL_EXTERN atomic_unchecked_t totBufAllocCount; /* total allocated over all time */
+GLOBAL_EXTERN atomic_unchecked_t totSmBufAllocCount;
 #endif
 GLOBAL_EXTERN atomic_t smBufAllocCount;
 GLOBAL_EXTERN atomic_t midCount;
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 9f6c4c4..8de307a 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -616,7 +616,7 @@ symlink_exit:
 
 void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie)
 {
-	char *p = nd_get_link(nd);
+	const char *p = nd_get_link(nd);
 	if (!IS_ERR(p))
 		kfree(p);
 }
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 1b15bf8..1ce489e 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -169,7 +169,7 @@ cifs_buf_get(void)
 		memset(ret_buf, 0, buf_size + 3);
 		atomic_inc(&bufAllocCount);
 #ifdef CONFIG_CIFS_STATS2
-		atomic_inc(&totBufAllocCount);
+		atomic_inc_unchecked(&totBufAllocCount);
 #endif /* CONFIG_CIFS_STATS2 */
 	}
 
@@ -204,7 +204,7 @@ cifs_small_buf_get(void)
 	/*	memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/
 		atomic_inc(&smBufAllocCount);
 #ifdef CONFIG_CIFS_STATS2
-		atomic_inc(&totSmBufAllocCount);
+		atomic_inc_unchecked(&totSmBufAllocCount);
 #endif /* CONFIG_CIFS_STATS2 */
 
 	}
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 47bc5a8..10decbe 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -586,27 +586,27 @@ static void
 cifs_clear_stats(struct cifs_tcon *tcon)
 {
 #ifdef CONFIG_CIFS_STATS
-	atomic_set(&tcon->stats.cifs_stats.num_writes, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_reads, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_flushes, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_oplock_brks, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_opens, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_posixopens, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_closes, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_deletes, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_mkdirs, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_rmdirs, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_renames, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_t2renames, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_ffirst, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_fnext, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_fclose, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_hardlinks, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_symlinks, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_locks, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_acl_get, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_acl_set, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_writes, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_reads, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_flushes, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_oplock_brks, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_opens, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixopens, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_closes, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_deletes, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_mkdirs, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_rmdirs, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_renames, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_t2renames, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_ffirst, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_fnext, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_fclose, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_hardlinks, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_symlinks, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_locks, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_get, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_set, 0);
 #endif
 }
 
@@ -615,36 +615,36 @@ cifs_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
 {
 #ifdef CONFIG_CIFS_STATS
 	seq_printf(m, " Oplocks breaks: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_oplock_brks));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_oplock_brks));
 	seq_printf(m, "\nReads:  %d Bytes: %llu",
-		   atomic_read(&tcon->stats.cifs_stats.num_reads),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_reads),
 		   (long long)(tcon->bytes_read));
 	seq_printf(m, "\nWrites: %d Bytes: %llu",
-		   atomic_read(&tcon->stats.cifs_stats.num_writes),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_writes),
 		   (long long)(tcon->bytes_written));
 	seq_printf(m, "\nFlushes: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_flushes));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_flushes));
 	seq_printf(m, "\nLocks: %d HardLinks: %d Symlinks: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_locks),
-		   atomic_read(&tcon->stats.cifs_stats.num_hardlinks),
-		   atomic_read(&tcon->stats.cifs_stats.num_symlinks));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_locks),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_hardlinks),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_symlinks));
 	seq_printf(m, "\nOpens: %d Closes: %d Deletes: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_opens),
-		   atomic_read(&tcon->stats.cifs_stats.num_closes),
-		   atomic_read(&tcon->stats.cifs_stats.num_deletes));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_opens),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_closes),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_deletes));
 	seq_printf(m, "\nPosix Opens: %d Posix Mkdirs: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_posixopens),
-		   atomic_read(&tcon->stats.cifs_stats.num_posixmkdirs));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixopens),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs));
 	seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_mkdirs),
-		   atomic_read(&tcon->stats.cifs_stats.num_rmdirs));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_mkdirs),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_rmdirs));
 	seq_printf(m, "\nRenames: %d T2 Renames %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_renames),
-		   atomic_read(&tcon->stats.cifs_stats.num_t2renames));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_renames),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_t2renames));
 	seq_printf(m, "\nFindFirst: %d FNext %d FClose %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_ffirst),
-		   atomic_read(&tcon->stats.cifs_stats.num_fnext),
-		   atomic_read(&tcon->stats.cifs_stats.num_fclose));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_ffirst),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_fnext),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_fclose));
 #endif
 }
 
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index bceffe7..cd1ae59 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -274,8 +274,8 @@ smb2_clear_stats(struct cifs_tcon *tcon)
 #ifdef CONFIG_CIFS_STATS
 	int i;
 	for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
-		atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
-		atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
+		atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
+		atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
 	}
 #endif
 }
@@ -284,66 +284,66 @@ static void
 smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
 {
 #ifdef CONFIG_CIFS_STATS
-	atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
-	atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
+	atomic_unchecked_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
+	atomic_unchecked_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
 	seq_printf(m, "\nNegotiates: %d sent %d failed",
-		   atomic_read(&sent[SMB2_NEGOTIATE_HE]),
-		   atomic_read(&failed[SMB2_NEGOTIATE_HE]));
+		   atomic_read_unchecked(&sent[SMB2_NEGOTIATE_HE]),
+		   atomic_read_unchecked(&failed[SMB2_NEGOTIATE_HE]));
 	seq_printf(m, "\nSessionSetups: %d sent %d failed",
-		   atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
-		   atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
+		   atomic_read_unchecked(&sent[SMB2_SESSION_SETUP_HE]),
+		   atomic_read_unchecked(&failed[SMB2_SESSION_SETUP_HE]));
 #define SMB2LOGOFF		0x0002 /* trivial request/resp */
 	seq_printf(m, "\nLogoffs: %d sent %d failed",
-		   atomic_read(&sent[SMB2_LOGOFF_HE]),
-		   atomic_read(&failed[SMB2_LOGOFF_HE]));
+		   atomic_read_unchecked(&sent[SMB2_LOGOFF_HE]),
+		   atomic_read_unchecked(&failed[SMB2_LOGOFF_HE]));
 	seq_printf(m, "\nTreeConnects: %d sent %d failed",
-		   atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
-		   atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
+		   atomic_read_unchecked(&sent[SMB2_TREE_CONNECT_HE]),
+		   atomic_read_unchecked(&failed[SMB2_TREE_CONNECT_HE]));
 	seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
-		   atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
-		   atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
+		   atomic_read_unchecked(&sent[SMB2_TREE_DISCONNECT_HE]),
+		   atomic_read_unchecked(&failed[SMB2_TREE_DISCONNECT_HE]));
 	seq_printf(m, "\nCreates: %d sent %d failed",
-		   atomic_read(&sent[SMB2_CREATE_HE]),
-		   atomic_read(&failed[SMB2_CREATE_HE]));
+		   atomic_read_unchecked(&sent[SMB2_CREATE_HE]),
+		   atomic_read_unchecked(&failed[SMB2_CREATE_HE]));
 	seq_printf(m, "\nCloses: %d sent %d failed",
-		   atomic_read(&sent[SMB2_CLOSE_HE]),
-		   atomic_read(&failed[SMB2_CLOSE_HE]));
+		   atomic_read_unchecked(&sent[SMB2_CLOSE_HE]),
+		   atomic_read_unchecked(&failed[SMB2_CLOSE_HE]));
 	seq_printf(m, "\nFlushes: %d sent %d failed",
-		   atomic_read(&sent[SMB2_FLUSH_HE]),
-		   atomic_read(&failed[SMB2_FLUSH_HE]));
+		   atomic_read_unchecked(&sent[SMB2_FLUSH_HE]),
+		   atomic_read_unchecked(&failed[SMB2_FLUSH_HE]));
 	seq_printf(m, "\nReads: %d sent %d failed",
-		   atomic_read(&sent[SMB2_READ_HE]),
-		   atomic_read(&failed[SMB2_READ_HE]));
+		   atomic_read_unchecked(&sent[SMB2_READ_HE]),
+		   atomic_read_unchecked(&failed[SMB2_READ_HE]));
 	seq_printf(m, "\nWrites: %d sent %d failed",
-		   atomic_read(&sent[SMB2_WRITE_HE]),
-		   atomic_read(&failed[SMB2_WRITE_HE]));
+		   atomic_read_unchecked(&sent[SMB2_WRITE_HE]),
+		   atomic_read_unchecked(&failed[SMB2_WRITE_HE]));
 	seq_printf(m, "\nLocks: %d sent %d failed",
-		   atomic_read(&sent[SMB2_LOCK_HE]),
-		   atomic_read(&failed[SMB2_LOCK_HE]));
+		   atomic_read_unchecked(&sent[SMB2_LOCK_HE]),
+		   atomic_read_unchecked(&failed[SMB2_LOCK_HE]));
 	seq_printf(m, "\nIOCTLs: %d sent %d failed",
-		   atomic_read(&sent[SMB2_IOCTL_HE]),
-		   atomic_read(&failed[SMB2_IOCTL_HE]));
+		   atomic_read_unchecked(&sent[SMB2_IOCTL_HE]),
+		   atomic_read_unchecked(&failed[SMB2_IOCTL_HE]));
 	seq_printf(m, "\nCancels: %d sent %d failed",
-		   atomic_read(&sent[SMB2_CANCEL_HE]),
-		   atomic_read(&failed[SMB2_CANCEL_HE]));
+		   atomic_read_unchecked(&sent[SMB2_CANCEL_HE]),
+		   atomic_read_unchecked(&failed[SMB2_CANCEL_HE]));
 	seq_printf(m, "\nEchos: %d sent %d failed",
-		   atomic_read(&sent[SMB2_ECHO_HE]),
-		   atomic_read(&failed[SMB2_ECHO_HE]));
+		   atomic_read_unchecked(&sent[SMB2_ECHO_HE]),
+		   atomic_read_unchecked(&failed[SMB2_ECHO_HE]));
 	seq_printf(m, "\nQueryDirectories: %d sent %d failed",
-		   atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
-		   atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
+		   atomic_read_unchecked(&sent[SMB2_QUERY_DIRECTORY_HE]),
+		   atomic_read_unchecked(&failed[SMB2_QUERY_DIRECTORY_HE]));
 	seq_printf(m, "\nChangeNotifies: %d sent %d failed",
-		   atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
-		   atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
+		   atomic_read_unchecked(&sent[SMB2_CHANGE_NOTIFY_HE]),
+		   atomic_read_unchecked(&failed[SMB2_CHANGE_NOTIFY_HE]));
 	seq_printf(m, "\nQueryInfos: %d sent %d failed",
-		   atomic_read(&sent[SMB2_QUERY_INFO_HE]),
-		   atomic_read(&failed[SMB2_QUERY_INFO_HE]));
+		   atomic_read_unchecked(&sent[SMB2_QUERY_INFO_HE]),
+		   atomic_read_unchecked(&failed[SMB2_QUERY_INFO_HE]));
 	seq_printf(m, "\nSetInfos: %d sent %d failed",
-		   atomic_read(&sent[SMB2_SET_INFO_HE]),
-		   atomic_read(&failed[SMB2_SET_INFO_HE]));
+		   atomic_read_unchecked(&sent[SMB2_SET_INFO_HE]),
+		   atomic_read_unchecked(&failed[SMB2_SET_INFO_HE]));
 	seq_printf(m, "\nOplockBreaks: %d sent %d failed",
-		   atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
-		   atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
+		   atomic_read_unchecked(&sent[SMB2_OPLOCK_BREAK_HE]),
+		   atomic_read_unchecked(&failed[SMB2_OPLOCK_BREAK_HE]));
 #endif
 }
 
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 41d9d07..dbb4772 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1761,8 +1761,7 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
 	default:
 		cERROR(1, "info level %u isn't supported",
 		       srch_inf->info_level);
-		rc = -EINVAL;
-		goto qdir_exit;
+		return -EINVAL;
 	}
 
 	req->FileIndex = cpu_to_le32(index);
diff --git a/fs/coda/cache.c b/fs/coda/cache.c
index 1da168c..8bc7ff6 100644
--- a/fs/coda/cache.c
+++ b/fs/coda/cache.c
@@ -24,7 +24,7 @@
 #include "coda_linux.h"
 #include "coda_cache.h"
 
-static atomic_t permission_epoch = ATOMIC_INIT(0);
+static atomic_unchecked_t permission_epoch = ATOMIC_INIT(0);
 
 /* replace or extend an acl cache hit */
 void coda_cache_enter(struct inode *inode, int mask)
@@ -32,7 +32,7 @@ void coda_cache_enter(struct inode *inode, int mask)
 	struct coda_inode_info *cii = ITOC(inode);
 
 	spin_lock(&cii->c_lock);
-	cii->c_cached_epoch = atomic_read(&permission_epoch);
+	cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch);
 	if (!uid_eq(cii->c_uid, current_fsuid())) {
 		cii->c_uid = current_fsuid();
                 cii->c_cached_perm = mask;
@@ -46,14 +46,14 @@ void coda_cache_clear_inode(struct inode *inode)
 {
 	struct coda_inode_info *cii = ITOC(inode);
 	spin_lock(&cii->c_lock);
-	cii->c_cached_epoch = atomic_read(&permission_epoch) - 1;
+	cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch) - 1;
 	spin_unlock(&cii->c_lock);
 }
 
 /* remove all acl caches */
 void coda_cache_clear_all(struct super_block *sb)
 {
-	atomic_inc(&permission_epoch);
+	atomic_inc_unchecked(&permission_epoch);
 }
 
 
@@ -66,7 +66,7 @@ int coda_cache_check(struct inode *inode, int mask)
 	spin_lock(&cii->c_lock);
 	hit = (mask & cii->c_cached_perm) == mask &&
 	    uid_eq(cii->c_uid, current_fsuid()) &&
-	    cii->c_cached_epoch == atomic_read(&permission_epoch);
+	    cii->c_cached_epoch == atomic_read_unchecked(&permission_epoch);
 	spin_unlock(&cii->c_lock);
 
 	return hit;
diff --git a/fs/compat.c b/fs/compat.c
index d487985..c9e04b1 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -54,7 +54,7 @@
 #include <asm/ioctls.h>
 #include "internal.h"
 
-int compat_log = 1;
+int compat_log = 0;
 
 int compat_printk(const char *fmt, ...)
 {
@@ -490,7 +490,7 @@ compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p)
 
 	set_fs(KERNEL_DS);
 	/* The __user pointer cast is valid because of the set_fs() */
-	ret = sys_io_setup(nr_reqs, (aio_context_t __user *) &ctx64);
+	ret = sys_io_setup(nr_reqs, (aio_context_t __force_user *) &ctx64);
 	set_fs(oldfs);
 	/* truncating is ok because it's a user address */
 	if (!ret)
@@ -548,7 +548,7 @@ ssize_t compat_rw_copy_check_uvector(int type,
 		goto out;
 
 	ret = -EINVAL;
-	if (nr_segs > UIO_MAXIOV || nr_segs < 0)
+	if (nr_segs > UIO_MAXIOV)
 		goto out;
 	if (nr_segs > fast_segs) {
 		ret = -ENOMEM;
@@ -835,6 +835,7 @@ struct compat_old_linux_dirent {
 
 struct compat_readdir_callback {
 	struct compat_old_linux_dirent __user *dirent;
+	struct file * file;
 	int result;
 };
 
@@ -852,6 +853,10 @@ static int compat_fillonedir(void *__buf, const char *name, int namlen,
 		buf->result = -EOVERFLOW;
 		return -EOVERFLOW;
 	}
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	buf->result++;
 	dirent = buf->dirent;
 	if (!access_ok(VERIFY_WRITE, dirent,
@@ -882,6 +887,7 @@ asmlinkage long compat_sys_old_readdir(unsigned int fd,
 
 	buf.result = 0;
 	buf.dirent = dirent;
+	buf.file = f.file;
 
 	error = vfs_readdir(f.file, compat_fillonedir, &buf);
 	if (buf.result)
@@ -901,6 +907,7 @@ struct compat_linux_dirent {
 struct compat_getdents_callback {
 	struct compat_linux_dirent __user *current_dir;
 	struct compat_linux_dirent __user *previous;
+	struct file * file;
 	int count;
 	int error;
 };
@@ -922,6 +929,10 @@ static int compat_filldir(void *__buf, const char *name, int namlen,
 		buf->error = -EOVERFLOW;
 		return -EOVERFLOW;
 	}
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	dirent = buf->previous;
 	if (dirent) {
 		if (__put_user(offset, &dirent->d_off))
@@ -967,6 +978,7 @@ asmlinkage long compat_sys_getdents(unsigned int fd,
 	buf.previous = NULL;
 	buf.count = count;
 	buf.error = 0;
+	buf.file = f.file;
 
 	error = vfs_readdir(f.file, compat_filldir, &buf);
 	if (error >= 0)
@@ -987,6 +999,7 @@ asmlinkage long compat_sys_getdents(unsigned int fd,
 struct compat_getdents_callback64 {
 	struct linux_dirent64 __user *current_dir;
 	struct linux_dirent64 __user *previous;
+	struct file * file;
 	int count;
 	int error;
 };
@@ -1003,6 +1016,10 @@ static int compat_filldir64(void * __buf, const char * name, int namlen, loff_t
 	buf->error = -EINVAL;	/* only used if we fail.. */
 	if (reclen > buf->count)
 		return -EINVAL;
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	dirent = buf->previous;
 
 	if (dirent) {
@@ -1052,13 +1069,14 @@ asmlinkage long compat_sys_getdents64(unsigned int fd,
 	buf.previous = NULL;
 	buf.count = count;
 	buf.error = 0;
+	buf.file = f.file;
 
 	error = vfs_readdir(f.file, compat_filldir64, &buf);
 	if (error >= 0)
 		error = buf.error;
 	lastdirent = buf.previous;
 	if (lastdirent) {
-		typeof(lastdirent->d_off) d_off = f.file->f_pos;
+		typeof(((struct linux_dirent64 *)0)->d_off) d_off = f.file->f_pos;
 		if (__put_user_unaligned(d_off, &lastdirent->d_off))
 			error = -EFAULT;
 		else
diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
index a81147e..20bf2b5 100644
--- a/fs/compat_binfmt_elf.c
+++ b/fs/compat_binfmt_elf.c
@@ -30,11 +30,13 @@
 #undef	elf_phdr
 #undef	elf_shdr
 #undef	elf_note
+#undef	elf_dyn
 #undef	elf_addr_t
 #define elfhdr		elf32_hdr
 #define elf_phdr	elf32_phdr
 #define elf_shdr	elf32_shdr
 #define elf_note	elf32_note
+#define elf_dyn		Elf32_Dyn
 #define elf_addr_t	Elf32_Addr
 
 /*
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 3ced75f..b28d192 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -623,7 +623,7 @@ static int serial_struct_ioctl(unsigned fd, unsigned cmd,
 			return -EFAULT;
                 if (__get_user(udata, &ss32->iomem_base))
 			return -EFAULT;
-                ss.iomem_base = compat_ptr(udata);
+                ss.iomem_base = (unsigned char __force_kernel *)compat_ptr(udata);
                 if (__get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) ||
 		    __get_user(ss.port_high, &ss32->port_high))
 			return -EFAULT;
@@ -704,8 +704,8 @@ static int do_i2c_rdwr_ioctl(unsigned int fd, unsigned int cmd,
 	for (i = 0; i < nmsgs; i++) {
 		if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
 			return -EFAULT;
-		if (get_user(datap, &umsgs[i].buf) ||
-		    put_user(compat_ptr(datap), &tmsgs[i].buf))
+		if (get_user(datap, (u8 __user * __user *)&umsgs[i].buf) ||
+		    put_user(compat_ptr(datap), (u8 __user * __user *)&tmsgs[i].buf))
 			return -EFAULT;
 	}
 	return sys_ioctl(fd, cmd, (unsigned long)tdata);
@@ -798,7 +798,7 @@ static int compat_ioctl_preallocate(struct file *file,
 	    copy_in_user(&p->l_len,	&p32->l_len,	sizeof(s64)) ||
 	    copy_in_user(&p->l_sysid,	&p32->l_sysid,	sizeof(s32)) ||
 	    copy_in_user(&p->l_pid,	&p32->l_pid,	sizeof(u32)) ||
-	    copy_in_user(&p->l_pad,	&p32->l_pad,	4*sizeof(u32)))
+	    copy_in_user(p->l_pad,	&p32->l_pad,	4*sizeof(u32)))
 		return -EFAULT;
 
 	return ioctl_preallocate(file, p);
@@ -1620,8 +1620,8 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
 static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
 {
 	unsigned int a, b;
-	a = *(unsigned int *)p;
-	b = *(unsigned int *)q;
+	a = *(const unsigned int *)p;
+	b = *(const unsigned int *)q;
 	if (a > b)
 		return 1;
 	if (a < b)
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 7aabc6a..34c1197 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1565,7 +1565,8 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir
 			}
 			for (p=q->next; p!= &parent_sd->s_children; p=p->next) {
 				struct configfs_dirent *next;
-				const char * name;
+				const unsigned char * name;
+				char d_name[sizeof(next->s_dentry->d_iname)];
 				int len;
 				struct inode *inode = NULL;
 
@@ -1575,7 +1576,12 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir
 					continue;
 
 				name = configfs_get_name(next);
-				len = strlen(name);
+				if (next->s_dentry && name == next->s_dentry->d_iname) {
+					len =  next->s_dentry->d_name.len;
+					memcpy(d_name, name, len);
+					name = d_name;
+				} else
+					len = strlen(name);
 
 				/*
 				 * We'll have a dentry and an inode for
diff --git a/fs/coredump.c b/fs/coredump.c
index c647965..a77bff3 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -52,7 +52,7 @@ struct core_name {
 	char *corename;
 	int used, size;
 };
-static atomic_t call_count = ATOMIC_INIT(1);
+static atomic_unchecked_t call_count = ATOMIC_INIT(1);
 
 /* The maximal length of core_pattern is also specified in sysctl.c */
 
@@ -60,7 +60,7 @@ static int expand_corename(struct core_name *cn)
 {
 	char *old_corename = cn->corename;
 
-	cn->size = CORENAME_MAX_SIZE * atomic_inc_return(&call_count);
+	cn->size = CORENAME_MAX_SIZE * atomic_inc_return_unchecked(&call_count);
 	cn->corename = krealloc(old_corename, cn->size, GFP_KERNEL);
 
 	if (!cn->corename) {
@@ -157,7 +157,7 @@ static int format_corename(struct core_name *cn, struct coredump_params *cprm)
 	int pid_in_pattern = 0;
 	int err = 0;
 
-	cn->size = CORENAME_MAX_SIZE * atomic_read(&call_count);
+	cn->size = CORENAME_MAX_SIZE * atomic_read_unchecked(&call_count);
 	cn->corename = kmalloc(cn->size, GFP_KERNEL);
 	cn->used = 0;
 
@@ -414,17 +414,17 @@ static void wait_for_dump_helpers(struct file *file)
 	pipe = file_inode(file)->i_pipe;
 
 	pipe_lock(pipe);
-	pipe->readers++;
-	pipe->writers--;
+	atomic_inc(&pipe->readers);
+	atomic_dec(&pipe->writers);
 
-	while ((pipe->readers > 1) && (!signal_pending(current))) {
+	while ((atomic_read(&pipe->readers) > 1) && (!signal_pending(current))) {
 		wake_up_interruptible_sync(&pipe->wait);
 		kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
 		pipe_wait(pipe);
 	}
 
-	pipe->readers--;
-	pipe->writers++;
+	atomic_dec(&pipe->readers);
+	atomic_inc(&pipe->writers);
 	pipe_unlock(pipe);
 
 }
@@ -471,7 +471,8 @@ void do_coredump(siginfo_t *siginfo)
 	int ispipe;
 	struct files_struct *displaced;
 	bool need_nonrelative = false;
-	static atomic_t core_dump_count = ATOMIC_INIT(0);
+	static atomic_unchecked_t core_dump_count = ATOMIC_INIT(0);
+	long signr = siginfo->si_signo;
 	struct coredump_params cprm = {
 		.siginfo = siginfo,
 		.regs = signal_pt_regs(),
@@ -484,7 +485,10 @@ void do_coredump(siginfo_t *siginfo)
 		.mm_flags = mm->flags,
 	};
 
-	audit_core_dumps(siginfo->si_signo);
+	audit_core_dumps(signr);
+
+	if (signr == SIGSEGV || signr == SIGBUS || signr == SIGKILL || signr == SIGILL)
+		gr_handle_brute_attach(cprm.mm_flags);
 
 	binfmt = mm->binfmt;
 	if (!binfmt || !binfmt->core_dump)
@@ -508,7 +512,7 @@ void do_coredump(siginfo_t *siginfo)
 		need_nonrelative = true;
 	}
 
-	retval = coredump_wait(siginfo->si_signo, &core_state);
+	retval = coredump_wait(signr, &core_state);
 	if (retval < 0)
 		goto fail_creds;
 
@@ -556,7 +560,7 @@ void do_coredump(siginfo_t *siginfo)
 		}
 		cprm.limit = RLIM_INFINITY;
 
-		dump_count = atomic_inc_return(&core_dump_count);
+		dump_count = atomic_inc_return_unchecked(&core_dump_count);
 		if (core_pipe_limit && (core_pipe_limit < dump_count)) {
 			printk(KERN_WARNING "Pid %d(%s) over core_pipe_limit\n",
 			       task_tgid_vnr(current), current->comm);
@@ -583,6 +587,8 @@ void do_coredump(siginfo_t *siginfo)
 	} else {
 		struct inode *inode;
 
+		gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1);
+
 		if (cprm.limit < binfmt->min_coredump)
 			goto fail_unlock;
 
@@ -640,7 +646,7 @@ close_fail:
 		filp_close(cprm.file, NULL);
 fail_dropcount:
 	if (ispipe)
-		atomic_dec(&core_dump_count);
+		atomic_dec_unchecked(&core_dump_count);
 fail_unlock:
 	kfree(cn.corename);
 fail_corename:
@@ -659,7 +665,7 @@ fail:
  */
 int dump_write(struct file *file, const void *addr, int nr)
 {
-	return access_ok(VERIFY_READ, addr, nr) && file->f_op->write(file, addr, nr, &file->f_pos) == nr;
+	return access_ok(VERIFY_READ, addr, nr) && file->f_op->write(file, (const char __force_user *)addr, nr, &file->f_pos) == nr;
 }
 EXPORT_SYMBOL(dump_write);
 
diff --git a/fs/dcache.c b/fs/dcache.c
index e689268..f36956e 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -3100,7 +3100,7 @@ void __init vfs_caches_init(unsigned long mempages)
 	mempages -= reserve;
 
 	names_cachep = kmem_cache_create("names_cache", PATH_MAX, 0,
-			SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
+			SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_USERCOPY, NULL);
 
 	dcache_init();
 	inode_init();
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 4888cb3..e0f7cf8 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -415,7 +415,11 @@ EXPORT_SYMBOL_GPL(debugfs_create_file);
  */
 struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
 {
+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
+	return __create_file(name, S_IFDIR | S_IRWXU,
+#else
 	return __create_file(name, S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO,
+#endif
 				   parent, NULL, NULL);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_dir);
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 5eab400..810a3f5 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -674,7 +674,7 @@ static int ecryptfs_readlink_lower(struct dentry *dentry, char **buf,
 	old_fs = get_fs();
 	set_fs(get_ds());
 	rc = lower_dentry->d_inode->i_op->readlink(lower_dentry,
-						   (char __user *)lower_buf,
+						   (char __force_user *)lower_buf,
 						   PATH_MAX);
 	set_fs(old_fs);
 	if (rc < 0)
@@ -706,7 +706,7 @@ out:
 static void
 ecryptfs_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr)
 {
-	char *buf = nd_get_link(nd);
+	const char *buf = nd_get_link(nd);
 	if (!IS_ERR(buf)) {
 		/* Free the char* */
 		kfree(buf);
diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
index e4141f2..d8263e8 100644
--- a/fs/ecryptfs/miscdev.c
+++ b/fs/ecryptfs/miscdev.c
@@ -304,7 +304,7 @@ check_list:
 		goto out_unlock_msg_ctx;
 	i = PKT_TYPE_SIZE + PKT_CTR_SIZE;
 	if (msg_ctx->msg) {
-		if (copy_to_user(&buf[i], packet_length, packet_length_size))
+		if (packet_length_size > sizeof(packet_length) || copy_to_user(&buf[i], packet_length, packet_length_size))
 			goto out_unlock_msg_ctx;
 		i += packet_length_size;
 		if (copy_to_user(&buf[i], msg_ctx->msg, msg_ctx->msg_size))
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index 6a16053..2155147 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -240,7 +240,7 @@ int ecryptfs_read_lower(char *data, loff_t offset, size_t size,
 		return -EIO;
 	fs_save = get_fs();
 	set_fs(get_ds());
-	rc = vfs_read(lower_file, data, size, &offset);
+	rc = vfs_read(lower_file, (char __force_user *)data, size, &offset);
 	set_fs(fs_save);
 	return rc;
 }
diff --git a/fs/exec.c b/fs/exec.c
index 6d56ff2..3bc6638 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -55,8 +55,20 @@
 #include <linux/pipe_fs_i.h>
 #include <linux/oom.h>
 #include <linux/compat.h>
+#include <linux/random.h>
+#include <linux/seq_file.h>
+#include <linux/coredump.h>
+#include <linux/mman.h>
+
+#ifdef CONFIG_PAX_REFCOUNT
+#include <linux/kallsyms.h>
+#include <linux/kdebug.h>
+#endif
+
+#include <trace/events/fs.h>
 
 #include <asm/uaccess.h>
+#include <asm/sections.h>
 #include <asm/mmu_context.h>
 #include <asm/tlb.h>
 
@@ -66,6 +78,18 @@
 
 #include <trace/events/sched.h>
 
+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
+void __weak pax_set_initial_flags(struct linux_binprm *bprm)
+{
+	pr_warn_once("PAX: PAX_HAVE_ACL_FLAGS was enabled without providing the pax_set_initial_flags callback, this is probably not what you wanted.\n");
+}
+#endif
+
+#ifdef CONFIG_PAX_HOOK_ACL_FLAGS
+void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
+EXPORT_SYMBOL(pax_set_initial_flags_func);
+#endif
+
 int suid_dumpable = 0;
 
 static LIST_HEAD(formats);
@@ -75,8 +99,8 @@ void __register_binfmt(struct linux_binfmt * fmt, int insert)
 {
 	BUG_ON(!fmt);
 	write_lock(&binfmt_lock);
-	insert ? list_add(&fmt->lh, &formats) :
-		 list_add_tail(&fmt->lh, &formats);
+	insert ? pax_list_add((struct list_head *)&fmt->lh, &formats) :
+		 pax_list_add_tail((struct list_head *)&fmt->lh, &formats);
 	write_unlock(&binfmt_lock);
 }
 
@@ -85,7 +109,7 @@ EXPORT_SYMBOL(__register_binfmt);
 void unregister_binfmt(struct linux_binfmt * fmt)
 {
 	write_lock(&binfmt_lock);
-	list_del(&fmt->lh);
+	pax_list_del((struct list_head *)&fmt->lh);
 	write_unlock(&binfmt_lock);
 }
 
@@ -180,18 +204,10 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 		int write)
 {
 	struct page *page;
-	int ret;
 
-#ifdef CONFIG_STACK_GROWSUP
-	if (write) {
-		ret = expand_downwards(bprm->vma, pos);
-		if (ret < 0)
-			return NULL;
-	}
-#endif
-	ret = get_user_pages(current, bprm->mm, pos,
-			1, write, 1, &page, NULL);
-	if (ret <= 0)
+	if (0 > expand_downwards(bprm->vma, pos))
+		return NULL;
+	if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL))
 		return NULL;
 
 	if (write) {
@@ -207,6 +223,17 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 		if (size <= ARG_MAX)
 			return page;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		// only allow 512KB for argv+env on suid/sgid binaries
+		// to prevent easy ASLR exhaustion
+		if (((!uid_eq(bprm->cred->euid, current_euid())) ||
+		     (!gid_eq(bprm->cred->egid, current_egid()))) &&
+		    (size > (512 * 1024))) {
+			put_page(page);
+			return NULL;
+		}
+#endif
+
 		/*
 		 * Limit to 1/4-th the stack size for the argv+env strings.
 		 * This ensures that:
@@ -266,6 +293,11 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
 	vma->vm_end = STACK_TOP_MAX;
 	vma->vm_start = vma->vm_end - PAGE_SIZE;
 	vma->vm_flags = VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
+#endif
+
 	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
 	INIT_LIST_HEAD(&vma->anon_vma_chain);
 
@@ -276,6 +308,12 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
 	mm->stack_vm = mm->total_vm = 1;
 	up_write(&mm->mmap_sem);
 	bprm->p = vma->vm_end - sizeof(void *);
+
+#ifdef CONFIG_PAX_RANDUSTACK
+	if (randomize_va_space)
+		bprm->p ^= random32() & ~PAGE_MASK;
+#endif
+
 	return 0;
 err:
 	up_write(&mm->mmap_sem);
@@ -396,7 +434,7 @@ struct user_arg_ptr {
 	} ptr;
 };
 
-static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
+const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
 {
 	const char __user *native;
 
@@ -405,14 +443,14 @@ static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
 		compat_uptr_t compat;
 
 		if (get_user(compat, argv.ptr.compat + nr))
-			return ERR_PTR(-EFAULT);
+			return (const char __force_user *)ERR_PTR(-EFAULT);
 
 		return compat_ptr(compat);
 	}
 #endif
 
 	if (get_user(native, argv.ptr.native + nr))
-		return ERR_PTR(-EFAULT);
+		return (const char __force_user *)ERR_PTR(-EFAULT);
 
 	return native;
 }
@@ -431,7 +469,7 @@ static int count(struct user_arg_ptr argv, int max)
 			if (!p)
 				break;
 
-			if (IS_ERR(p))
+			if (IS_ERR((const char __force_kernel *)p))
 				return -EFAULT;
 
 			if (i >= max)
@@ -466,7 +504,7 @@ static int copy_strings(int argc, struct user_arg_ptr argv,
 
 		ret = -EFAULT;
 		str = get_user_arg_ptr(argv, argc);
-		if (IS_ERR(str))
+		if (IS_ERR((const char __force_kernel *)str))
 			goto out;
 
 		len = strnlen_user(str, MAX_ARG_STRLEN);
@@ -548,7 +586,7 @@ int copy_strings_kernel(int argc, const char *const *__argv,
 	int r;
 	mm_segment_t oldfs = get_fs();
 	struct user_arg_ptr argv = {
-		.ptr.native = (const char __user *const  __user *)__argv,
+		.ptr.native = (const char __force_user * const __force_user *)__argv,
 	};
 
 	set_fs(KERNEL_DS);
@@ -583,7 +621,8 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
 	unsigned long new_end = old_end - shift;
 	struct mmu_gather tlb;
 
-	BUG_ON(new_start > new_end);
+	if (new_start >= new_end || new_start < mmap_min_addr)
+		return -ENOMEM;
 
 	/*
 	 * ensure there are no vmas between where we want to go
@@ -592,6 +631,10 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
 	if (vma != find_vma(mm, new_start))
 		return -EFAULT;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	BUG_ON(pax_find_mirror_vma(vma));
+#endif
+
 	/*
 	 * cover the whole range: [new_start, old_end)
 	 */
@@ -672,10 +715,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	stack_top = arch_align_stack(stack_top);
 	stack_top = PAGE_ALIGN(stack_top);
 
-	if (unlikely(stack_top < mmap_min_addr) ||
-	    unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr))
-		return -ENOMEM;
-
 	stack_shift = vma->vm_end - stack_top;
 
 	bprm->p -= stack_shift;
@@ -687,8 +726,28 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	bprm->exec -= stack_shift;
 
 	down_write(&mm->mmap_sem);
+
+	/* Move stack pages down in memory. */
+	if (stack_shift) {
+		ret = shift_arg_pages(vma, stack_shift);
+		if (ret)
+			goto out_unlock;
+	}
+
 	vm_flags = VM_STACK_FLAGS;
 
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+	if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
+		vm_flags &= ~VM_EXEC;
+
+#ifdef CONFIG_PAX_MPROTECT
+		if (mm->pax_flags & MF_PAX_MPROTECT)
+			vm_flags &= ~VM_MAYEXEC;
+#endif
+
+	}
+#endif
+
 	/*
 	 * Adjust stack execute permissions; explicitly enable for
 	 * EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X and leave alone
@@ -707,13 +766,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
 		goto out_unlock;
 	BUG_ON(prev != vma);
 
-	/* Move stack pages down in memory. */
-	if (stack_shift) {
-		ret = shift_arg_pages(vma, stack_shift);
-		if (ret)
-			goto out_unlock;
-	}
-
 	/* mprotect_fixup is overkill to remove the temporary stack flags */
 	vma->vm_flags &= ~VM_STACK_INCOMPLETE_SETUP;
 
@@ -737,6 +789,27 @@ int setup_arg_pages(struct linux_binprm *bprm,
 #endif
 	current->mm->start_stack = bprm->p;
 	ret = expand_stack(vma, stack_base);
+
+#if !defined(CONFIG_STACK_GROWSUP) && defined(CONFIG_PAX_RANDMMAP)
+	if (!ret && (mm->pax_flags & MF_PAX_RANDMMAP) && STACK_TOP <= 0xFFFFFFFFU && STACK_TOP > vma->vm_end) {
+		unsigned long size;
+		vm_flags_t vm_flags;
+
+		size = STACK_TOP - vma->vm_end;
+		vm_flags = VM_NONE | VM_DONTEXPAND | VM_DONTDUMP;
+
+		ret = vma->vm_end != mmap_region(NULL, vma->vm_end, size, vm_flags, 0);
+
+#ifdef CONFIG_X86
+		if (!ret) {
+			size = mmap_min_addr + ((mm->delta_mmap ^ mm->delta_stack) & (0xFFUL << PAGE_SHIFT));
+			ret = 0 != mmap_region(NULL, 0, PAGE_ALIGN(size), vm_flags, 0);
+		}
+#endif
+
+	}
+#endif
+
 	if (ret)
 		ret = -EFAULT;
 
@@ -772,6 +845,8 @@ struct file *open_exec(const char *name)
 
 	fsnotify_open(file);
 
+	trace_open_exec(name);
+
 	err = deny_write_access(file);
 	if (err)
 		goto exit;
@@ -795,7 +870,7 @@ int kernel_read(struct file *file, loff_t offset,
 	old_fs = get_fs();
 	set_fs(get_ds());
 	/* The cast to a user pointer is valid due to the set_fs() */
-	result = vfs_read(file, (void __user *)addr, count, &pos);
+	result = vfs_read(file, (void __force_user *)addr, count, &pos);
 	set_fs(old_fs);
 	return result;
 }
@@ -1250,7 +1325,7 @@ static int check_unsafe_exec(struct linux_binprm *bprm)
 	}
 	rcu_read_unlock();
 
-	if (p->fs->users > n_fs) {
+	if (atomic_read(&p->fs->users) > n_fs) {
 		bprm->unsafe |= LSM_UNSAFE_SHARE;
 	} else {
 		res = -EAGAIN;
@@ -1450,6 +1525,31 @@ int search_binary_handler(struct linux_binprm *bprm)
 
 EXPORT_SYMBOL(search_binary_handler);
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+static DEFINE_PER_CPU(u64, exec_counter);
+static int __init init_exec_counters(void)
+{
+	unsigned int cpu;
+
+	for_each_possible_cpu(cpu) {
+		per_cpu(exec_counter, cpu) = (u64)cpu;
+	}
+
+	return 0;
+}
+early_initcall(init_exec_counters);
+static inline void increment_exec_counter(void)
+{
+	BUILD_BUG_ON(NR_CPUS > (1 << 16));
+	current->exec_id = this_cpu_add_return(exec_counter, 1 << 16);
+}
+#else
+static inline void increment_exec_counter(void) {}
+#endif
+
+extern void gr_handle_exec_args(struct linux_binprm *bprm,
+				struct user_arg_ptr argv);
+
 /*
  * sys_execve() executes a new program.
  */
@@ -1457,6 +1557,11 @@ static int do_execve_common(const char *filename,
 				struct user_arg_ptr argv,
 				struct user_arg_ptr envp)
 {
+#ifdef CONFIG_GRKERNSEC
+	struct file *old_exec_file;
+	struct acl_subject_label *old_acl;
+	struct rlimit old_rlim[RLIM_NLIMITS];
+#endif
 	struct linux_binprm *bprm;
 	struct file *file;
 	struct files_struct *displaced;
@@ -1464,6 +1569,8 @@ static int do_execve_common(const char *filename,
 	int retval;
 	const struct cred *cred = current_cred();
 
+	gr_learn_resource(current, RLIMIT_NPROC, atomic_read(&cred->user->processes), 1);
+
 	/*
 	 * We move the actual failure in case of RLIMIT_NPROC excess from
 	 * set*uid() to execve() because too many poorly written programs
@@ -1504,12 +1611,27 @@ static int do_execve_common(const char *filename,
 	if (IS_ERR(file))
 		goto out_unmark;
 
+	if (gr_ptrace_readexec(file, bprm->unsafe)) {
+		retval = -EPERM;
+		goto out_file;
+	}
+
 	sched_exec();
 
 	bprm->file = file;
 	bprm->filename = filename;
 	bprm->interp = filename;
 
+	if (gr_process_user_ban()) {
+		retval = -EPERM;
+		goto out_file;
+	}
+
+	if (!gr_acl_handle_execve(file->f_path.dentry, file->f_path.mnt)) {
+		retval = -EACCES;
+		goto out_file;
+	}
+
 	retval = bprm_mm_init(bprm);
 	if (retval)
 		goto out_file;
@@ -1526,24 +1648,65 @@ static int do_execve_common(const char *filename,
 	if (retval < 0)
 		goto out;
 
+#ifdef CONFIG_GRKERNSEC
+	old_acl = current->acl;
+	memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
+	old_exec_file = current->exec_file;
+	get_file(file);
+	current->exec_file = file;
+#endif
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	/* limit suid stack to 8MB
+	 * we saved the old limits above and will restore them if this exec fails
+	 */
+	if (((!uid_eq(bprm->cred->euid, current_euid())) || (!gid_eq(bprm->cred->egid, current_egid()))) &&
+	    (old_rlim[RLIMIT_STACK].rlim_cur > (8 * 1024 * 1024)))
+		current->signal->rlim[RLIMIT_STACK].rlim_cur = 8 * 1024 * 1024;
+#endif
+
+	if (!gr_tpe_allow(file)) {
+		retval = -EACCES;
+		goto out_fail;
+	}
+
+	if (gr_check_crash_exec(file)) {
+		retval = -EACCES;
+		goto out_fail;
+	}
+
+	retval = gr_set_proc_label(file->f_path.dentry, file->f_path.mnt,
+					bprm->unsafe);
+	if (retval < 0)
+		goto out_fail;
+
 	retval = copy_strings_kernel(1, &bprm->filename, bprm);
 	if (retval < 0)
-		goto out;
+		goto out_fail;
 
 	bprm->exec = bprm->p;
 	retval = copy_strings(bprm->envc, envp, bprm);
 	if (retval < 0)
-		goto out;
+		goto out_fail;
 
 	retval = copy_strings(bprm->argc, argv, bprm);
 	if (retval < 0)
-		goto out;
+		goto out_fail;
+
+	gr_log_chroot_exec(file->f_path.dentry, file->f_path.mnt);
+
+	gr_handle_exec_args(bprm, argv);
 
 	retval = search_binary_handler(bprm);
 	if (retval < 0)
-		goto out;
+		goto out_fail;
+#ifdef CONFIG_GRKERNSEC
+	if (old_exec_file)
+		fput(old_exec_file);
+#endif
 
 	/* execve succeeded */
+
+	increment_exec_counter();
 	current->fs->in_exec = 0;
 	current->in_execve = 0;
 	acct_update_integrals(current);
@@ -1552,6 +1715,14 @@ static int do_execve_common(const char *filename,
 		put_files_struct(displaced);
 	return retval;
 
+out_fail:
+#ifdef CONFIG_GRKERNSEC
+	current->acl = old_acl;
+	memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
+	fput(current->exec_file);
+	current->exec_file = old_exec_file;
+#endif
+
 out:
 	if (bprm->mm) {
 		acct_arg_size(bprm, 0);
@@ -1700,3 +1871,283 @@ asmlinkage long compat_sys_execve(const char __user * filename,
 	return error;
 }
 #endif
+
+int pax_check_flags(unsigned long *flags)
+{
+	int retval = 0;
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC)
+	if (*flags & MF_PAX_SEGMEXEC)
+	{
+		*flags &= ~MF_PAX_SEGMEXEC;
+	retval = -EINVAL;
+	}
+#endif
+
+	if ((*flags & MF_PAX_PAGEEXEC)
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	    &&  (*flags & MF_PAX_SEGMEXEC)
+#endif
+
+	   )
+	{
+		*flags &= ~MF_PAX_PAGEEXEC;
+		retval = -EINVAL;
+	}
+
+	if ((*flags & MF_PAX_MPROTECT)
+
+#ifdef CONFIG_PAX_MPROTECT
+	    && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
+#endif
+
+	   )
+	{
+		*flags &= ~MF_PAX_MPROTECT;
+	retval = -EINVAL;
+	}
+
+	if ((*flags & MF_PAX_EMUTRAMP)
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	    && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
+#endif
+
+	   )
+	{
+		*flags &= ~MF_PAX_EMUTRAMP;
+		retval = -EINVAL;
+	}
+
+	return retval;
+}
+
+EXPORT_SYMBOL(pax_check_flags);
+
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+void pax_report_fault(struct pt_regs *regs, void *pc, void *sp)
+{
+	struct task_struct *tsk = current;
+	struct mm_struct *mm = current->mm;
+	char *buffer_exec = (char *)__get_free_page(GFP_KERNEL);
+	char *buffer_fault = (char *)__get_free_page(GFP_KERNEL);
+	char *path_exec = NULL;
+	char *path_fault = NULL;
+	unsigned long start = 0UL, end = 0UL, offset = 0UL;
+	siginfo_t info = { };
+
+	if (buffer_exec && buffer_fault) {
+		struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL;
+
+		down_read(&mm->mmap_sem);
+		vma = mm->mmap;
+		while (vma && (!vma_exec || !vma_fault)) {
+			if (vma->vm_file && mm->exe_file == vma->vm_file && (vma->vm_flags & VM_EXEC))
+				vma_exec = vma;
+			if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end)
+				vma_fault = vma;
+			vma = vma->vm_next;
+		}
+		if (vma_exec) {
+			path_exec = d_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE);
+			if (IS_ERR(path_exec))
+				path_exec = "<path too long>";
+			else {
+				path_exec = mangle_path(buffer_exec, path_exec, "\t\n\\");
+				if (path_exec) {
+					*path_exec = 0;
+					path_exec = buffer_exec;
+				} else
+					path_exec = "<path too long>";
+			}
+		}
+		if (vma_fault) {
+			start = vma_fault->vm_start;
+			end = vma_fault->vm_end;
+			offset = vma_fault->vm_pgoff << PAGE_SHIFT;
+			if (vma_fault->vm_file) {
+				path_fault = d_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE);
+				if (IS_ERR(path_fault))
+					path_fault = "<path too long>";
+				else {
+					path_fault = mangle_path(buffer_fault, path_fault, "\t\n\\");
+					if (path_fault) {
+						*path_fault = 0;
+						path_fault = buffer_fault;
+					} else
+						path_fault = "<path too long>";
+				}
+			} else
+				path_fault = "<anonymous mapping>";
+		}
+		up_read(&mm->mmap_sem);
+	}
+	if (tsk->signal->curr_ip)
+		printk(KERN_ERR "PAX: From %pI4: execution attempt in: %s, %08lx-%08lx %08lx\n", &tsk->signal->curr_ip, path_fault, start, end, offset);
+	else
+		printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset);
+	printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk),
+			from_kuid_munged(&init_user_ns, task_uid(tsk)), from_kuid_munged(&init_user_ns, task_euid(tsk)), pc, sp);
+	free_page((unsigned long)buffer_exec);
+	free_page((unsigned long)buffer_fault);
+	pax_report_insns(regs, pc, sp);
+	info.si_signo = SIGKILL;
+	info.si_errno = 0;
+	info.si_code = SI_KERNEL;
+	info.si_pid = 0;
+	info.si_uid = 0;
+	do_coredump(&info);
+}
+#endif
+
+#ifdef CONFIG_PAX_REFCOUNT
+void pax_report_refcount_overflow(struct pt_regs *regs)
+{
+	if (current->signal->curr_ip)
+		printk(KERN_ERR "PAX: From %pI4: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
+				&current->signal->curr_ip, current->comm, task_pid_nr(current),
+				from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+	else
+		printk(KERN_ERR "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", current->comm, task_pid_nr(current),
+				from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+	print_symbol(KERN_ERR "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs));
+	show_regs(regs);
+	force_sig_info(SIGKILL, SEND_SIG_FORCED, current);
+}
+#endif
+
+#ifdef CONFIG_PAX_USERCOPY
+/* 0: not at all, 1: fully, 2: fully inside frame, -1: partially (implies an error) */
+static noinline int check_stack_object(const void *obj, unsigned long len)
+{
+	const void * const stack = task_stack_page(current);
+	const void * const stackend = stack + THREAD_SIZE;
+
+#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
+	const void *frame = NULL;
+	const void *oldframe;
+#endif
+
+	if (obj + len < obj)
+		return -1;
+
+	if (obj + len <= stack || stackend <= obj)
+		return 0;
+
+	if (obj < stack || stackend < obj + len)
+		return -1;
+
+#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
+	oldframe = __builtin_frame_address(1);
+	if (oldframe)
+		frame = __builtin_frame_address(2);
+	/*
+	  low ----------------------------------------------> high
+	  [saved bp][saved ip][args][local vars][saved bp][saved ip]
+			      ^----------------^
+			  allow copies only within here
+	*/
+	while (stack <= frame && frame < stackend) {
+		/* if obj + len extends past the last frame, this
+		   check won't pass and the next frame will be 0,
+		   causing us to bail out and correctly report
+		   the copy as invalid
+		*/
+		if (obj + len <= frame)
+			return obj >= oldframe + 2 * sizeof(void *) ? 2 : -1;
+		oldframe = frame;
+		frame = *(const void * const *)frame;
+	}
+	return -1;
+#else
+	return 1;
+#endif
+}
+
+static __noreturn void pax_report_usercopy(const void *ptr, unsigned long len, bool to_user, const char *type)
+{
+	if (current->signal->curr_ip)
+		printk(KERN_ERR "PAX: From %pI4: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
+			&current->signal->curr_ip, to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
+	else
+		printk(KERN_ERR "PAX: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
+			to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
+	dump_stack();
+	gr_handle_kernel_exploit();
+	do_group_exit(SIGKILL);
+}
+#endif
+
+#ifdef CONFIG_PAX_USERCOPY
+static inline bool check_kernel_text_object(unsigned long low, unsigned long high)
+{
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	unsigned long textlow = ktla_ktva((unsigned long)_stext);
+#ifdef CONFIG_MODULES
+	unsigned long texthigh = (unsigned long)MODULES_EXEC_VADDR;
+#else
+	unsigned long texthigh = ktla_ktva((unsigned long)_etext);
+#endif
+
+#else
+	unsigned long textlow = (unsigned long)_stext;
+	unsigned long texthigh = (unsigned long)_etext;
+#endif
+
+	if (high <= textlow || low > texthigh)
+		return false;
+	else
+		return true;
+}
+#endif
+
+void __check_object_size(const void *ptr, unsigned long n, bool to_user)
+{
+
+#ifdef CONFIG_PAX_USERCOPY
+	const char *type;
+
+	if (!n)
+		return;
+
+	type = check_heap_object(ptr, n);
+	if (!type) {
+		int ret = check_stack_object(ptr, n);
+		if (ret == 1 || ret == 2)
+			return;
+		if (ret == 0) {
+			if (check_kernel_text_object((unsigned long)ptr, (unsigned long)ptr + n))
+				type = "<kernel text>";
+			else
+				return;
+		} else
+			type = "<process stack>";
+	}
+
+	pax_report_usercopy(ptr, n, to_user, type);
+#endif
+
+}
+EXPORT_SYMBOL(__check_object_size);
+
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+void pax_track_stack(void)
+{
+	unsigned long sp = (unsigned long)&sp;
+	if (sp < current_thread_info()->lowest_stack &&
+	    sp > (unsigned long)task_stack_page(current))
+		current_thread_info()->lowest_stack = sp;
+}
+EXPORT_SYMBOL(pax_track_stack);
+#endif
+
+#ifdef CONFIG_PAX_SIZE_OVERFLOW
+void report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
+{
+	printk(KERN_ERR "PAX: size overflow detected in function %s %s:%u %s", func, file, line, ssa_name);
+	dump_stack();
+	do_group_exit(SIGKILL);
+}
+EXPORT_SYMBOL(report_size_overflow);
+#endif
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 9f9992b..8b59411 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -1184,10 +1184,10 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi)
 
 	free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
 	root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
-	if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
+	if (free_blocks < root_blocks + 1 &&
 		!uid_eq(sbi->s_resuid, current_fsuid()) &&
 		(gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
-		 !in_group_p (sbi->s_resgid))) {
+		 !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
 		return 0;
 	}
 	return 1;
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index 22548f5..41521d8 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -1438,10 +1438,10 @@ static int ext3_has_free_blocks(struct ext3_sb_info *sbi, int use_reservation)
 
 	free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
 	root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
-	if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
+	if (free_blocks < root_blocks + 1 &&
 		!use_reservation && !uid_eq(sbi->s_resuid, current_fsuid()) &&
 		(gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
-		 !in_group_p (sbi->s_resgid))) {
+		 !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
 		return 0;
 	}
 	return 1;
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 92e68b3..115d987 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -505,8 +505,8 @@ static int ext4_has_free_clusters(struct ext4_sb_info *sbi,
 	/* Hm, nope.  Are (enough) root reserved clusters available? */
 	if (uid_eq(sbi->s_resuid, current_fsuid()) ||
 	    (!gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) && in_group_p(sbi->s_resgid)) ||
-	    capable(CAP_SYS_RESOURCE) ||
-		(flags & EXT4_MB_USE_ROOT_BLOCKS)) {
+	    (flags & EXT4_MB_USE_ROOT_BLOCKS) || 
+	    capable_nolog(CAP_SYS_RESOURCE)) {
 
 		if (free_clusters >= (nclusters + dirty_clusters))
 			return 1;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 3b83cd6..0f34dcd 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1254,19 +1254,19 @@ struct ext4_sb_info {
 	unsigned long s_mb_last_start;
 
 	/* stats for buddy allocator */
-	atomic_t s_bal_reqs;	/* number of reqs with len > 1 */
-	atomic_t s_bal_success;	/* we found long enough chunks */
-	atomic_t s_bal_allocated;	/* in blocks */
-	atomic_t s_bal_ex_scanned;	/* total extents scanned */
-	atomic_t s_bal_goals;	/* goal hits */
-	atomic_t s_bal_breaks;	/* too long searches */
-	atomic_t s_bal_2orders;	/* 2^order hits */
+	atomic_unchecked_t s_bal_reqs;	/* number of reqs with len > 1 */
+	atomic_unchecked_t s_bal_success;	/* we found long enough chunks */
+	atomic_unchecked_t s_bal_allocated;	/* in blocks */
+	atomic_unchecked_t s_bal_ex_scanned;	/* total extents scanned */
+	atomic_unchecked_t s_bal_goals;	/* goal hits */
+	atomic_unchecked_t s_bal_breaks;	/* too long searches */
+	atomic_unchecked_t s_bal_2orders;	/* 2^order hits */
 	spinlock_t s_bal_lock;
 	unsigned long s_mb_buddies_generated;
 	unsigned long long s_mb_generation_time;
-	atomic_t s_mb_lost_chunks;
-	atomic_t s_mb_preallocated;
-	atomic_t s_mb_discarded;
+	atomic_unchecked_t s_mb_lost_chunks;
+	atomic_unchecked_t s_mb_preallocated;
+	atomic_unchecked_t s_mb_discarded;
 	atomic_t s_lock_busy;
 
 	/* locality groups */
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index f3190ab..84ffb21 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1754,7 +1754,7 @@ void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac,
 		BUG_ON(ac->ac_b_ex.fe_len != ac->ac_g_ex.fe_len);
 
 		if (EXT4_SB(sb)->s_mb_stats)
-			atomic_inc(&EXT4_SB(sb)->s_bal_2orders);
+			atomic_inc_unchecked(&EXT4_SB(sb)->s_bal_2orders);
 
 		break;
 	}
@@ -2059,7 +2059,7 @@ repeat:
 			ac->ac_status = AC_STATUS_CONTINUE;
 			ac->ac_flags |= EXT4_MB_HINT_FIRST;
 			cr = 3;
-			atomic_inc(&sbi->s_mb_lost_chunks);
+			atomic_inc_unchecked(&sbi->s_mb_lost_chunks);
 			goto repeat;
 		}
 	}
@@ -2567,25 +2567,25 @@ int ext4_mb_release(struct super_block *sb)
 	if (sbi->s_mb_stats) {
 		ext4_msg(sb, KERN_INFO,
 		       "mballoc: %u blocks %u reqs (%u success)",
-				atomic_read(&sbi->s_bal_allocated),
-				atomic_read(&sbi->s_bal_reqs),
-				atomic_read(&sbi->s_bal_success));
+				atomic_read_unchecked(&sbi->s_bal_allocated),
+				atomic_read_unchecked(&sbi->s_bal_reqs),
+				atomic_read_unchecked(&sbi->s_bal_success));
 		ext4_msg(sb, KERN_INFO,
 		      "mballoc: %u extents scanned, %u goal hits, "
 				"%u 2^N hits, %u breaks, %u lost",
-				atomic_read(&sbi->s_bal_ex_scanned),
-				atomic_read(&sbi->s_bal_goals),
-				atomic_read(&sbi->s_bal_2orders),
-				atomic_read(&sbi->s_bal_breaks),
-				atomic_read(&sbi->s_mb_lost_chunks));
+				atomic_read_unchecked(&sbi->s_bal_ex_scanned),
+				atomic_read_unchecked(&sbi->s_bal_goals),
+				atomic_read_unchecked(&sbi->s_bal_2orders),
+				atomic_read_unchecked(&sbi->s_bal_breaks),
+				atomic_read_unchecked(&sbi->s_mb_lost_chunks));
 		ext4_msg(sb, KERN_INFO,
 		       "mballoc: %lu generated and it took %Lu",
 				sbi->s_mb_buddies_generated,
 				sbi->s_mb_generation_time);
 		ext4_msg(sb, KERN_INFO,
 		       "mballoc: %u preallocated, %u discarded",
-				atomic_read(&sbi->s_mb_preallocated),
-				atomic_read(&sbi->s_mb_discarded));
+				atomic_read_unchecked(&sbi->s_mb_preallocated),
+				atomic_read_unchecked(&sbi->s_mb_discarded));
 	}
 
 	free_percpu(sbi->s_locality_groups);
@@ -3039,16 +3039,16 @@ static void ext4_mb_collect_stats(struct ext4_allocation_context *ac)
 	struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
 
 	if (sbi->s_mb_stats && ac->ac_g_ex.fe_len > 1) {
-		atomic_inc(&sbi->s_bal_reqs);
-		atomic_add(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
+		atomic_inc_unchecked(&sbi->s_bal_reqs);
+		atomic_add_unchecked(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
 		if (ac->ac_b_ex.fe_len >= ac->ac_o_ex.fe_len)
-			atomic_inc(&sbi->s_bal_success);
-		atomic_add(ac->ac_found, &sbi->s_bal_ex_scanned);
+			atomic_inc_unchecked(&sbi->s_bal_success);
+		atomic_add_unchecked(ac->ac_found, &sbi->s_bal_ex_scanned);
 		if (ac->ac_g_ex.fe_start == ac->ac_b_ex.fe_start &&
 				ac->ac_g_ex.fe_group == ac->ac_b_ex.fe_group)
-			atomic_inc(&sbi->s_bal_goals);
+			atomic_inc_unchecked(&sbi->s_bal_goals);
 		if (ac->ac_found > sbi->s_mb_max_to_scan)
-			atomic_inc(&sbi->s_bal_breaks);
+			atomic_inc_unchecked(&sbi->s_bal_breaks);
 	}
 
 	if (ac->ac_op == EXT4_MB_HISTORY_ALLOC)
@@ -3448,7 +3448,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
 	trace_ext4_mb_new_inode_pa(ac, pa);
 
 	ext4_mb_use_inode_pa(ac, pa);
-	atomic_add(pa->pa_free, &sbi->s_mb_preallocated);
+	atomic_add_unchecked(pa->pa_free, &sbi->s_mb_preallocated);
 
 	ei = EXT4_I(ac->ac_inode);
 	grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
@@ -3508,7 +3508,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
 	trace_ext4_mb_new_group_pa(ac, pa);
 
 	ext4_mb_use_group_pa(ac, pa);
-	atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
+	atomic_add_unchecked(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
 
 	grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
 	lg = ac->ac_lg;
@@ -3597,7 +3597,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
 		 * from the bitmap and continue.
 		 */
 	}
-	atomic_add(free, &sbi->s_mb_discarded);
+	atomic_add_unchecked(free, &sbi->s_mb_discarded);
 
 	return err;
 }
@@ -3615,7 +3615,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
 	ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
 	BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
 	mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len);
-	atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
+	atomic_add_unchecked(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
 	trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len);
 
 	return 0;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index febbe0e..782c4fd 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2380,7 +2380,7 @@ struct ext4_attr {
 	ssize_t (*store)(struct ext4_attr *, struct ext4_sb_info *,
 			 const char *, size_t);
 	int offset;
-};
+} __do_const;
 
 static int parse_strtoul(const char *buf,
 		unsigned long max, unsigned long *value)
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index acf6e47..e7a7fde 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1223,6 +1223,19 @@ static int fat_read_root(struct inode *inode)
 	return 0;
 }
 
+static unsigned long calc_fat_clusters(struct super_block *sb)
+{
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+
+	/* Divide first to avoid overflow */
+	if (sbi->fat_bits != 12) {
+		unsigned long ent_per_sec = sb->s_blocksize * 8 / sbi->fat_bits;
+		return ent_per_sec * sbi->fat_length;
+	}
+
+	return sbi->fat_length * sb->s_blocksize * 8 / sbi->fat_bits;
+}
+
 /*
  * Read the super block of an MS-DOS FS.
  */
@@ -1427,7 +1440,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
 		sbi->dirty = b->fat16.state & FAT_STATE_DIRTY;
 
 	/* check that FAT table does not overflow */
-	fat_clusters = sbi->fat_length * sb->s_blocksize * 8 / sbi->fat_bits;
+	fat_clusters = calc_fat_clusters(sb);
 	total_clusters = min(total_clusters, fat_clusters - FAT_START_ENT);
 	if (total_clusters > MAX_FAT(sb)) {
 		if (!silent)
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 6599222..e7bf0de 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -107,6 +107,11 @@ int __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
 	if (err)
 		return err;
 
+	if (gr_handle_chroot_fowner(pid, type))
+		return -ENOENT;
+	if (gr_check_protected_task_fowner(pid, type))
+		return -EACCES;
+
 	f_modown(filp, pid, type, force);
 	return 0;
 }
diff --git a/fs/fhandle.c b/fs/fhandle.c
index 999ff5c..41f4109 100644
--- a/fs/fhandle.c
+++ b/fs/fhandle.c
@@ -67,8 +67,7 @@ static long do_sys_name_to_handle(struct path *path,
 	} else
 		retval = 0;
 	/* copy the mount id */
-	if (copy_to_user(mnt_id, &real_mount(path->mnt)->mnt_id,
-			 sizeof(*mnt_id)) ||
+	if (put_user(real_mount(path->mnt)->mnt_id, mnt_id) ||
 	    copy_to_user(ufh, handle,
 			 sizeof(struct file_handle) + handle_bytes))
 		retval = -EFAULT;
diff --git a/fs/fifo.c b/fs/fifo.c
index cf6f434..3d7942c 100644
--- a/fs/fifo.c
+++ b/fs/fifo.c
@@ -59,10 +59,10 @@ static int fifo_open(struct inode *inode, struct file *filp)
 	 */
 		filp->f_op = &read_pipefifo_fops;
 		pipe->r_counter++;
-		if (pipe->readers++ == 0)
+		if (atomic_inc_return(&pipe->readers) == 1)
 			wake_up_partner(inode);
 
-		if (!pipe->writers) {
+		if (!atomic_read(&pipe->writers)) {
 			if ((filp->f_flags & O_NONBLOCK)) {
 				/* suppress POLLHUP until we have
 				 * seen a writer */
@@ -81,15 +81,15 @@ static int fifo_open(struct inode *inode, struct file *filp)
 	 *  errno=ENXIO when there is no process reading the FIFO.
 	 */
 		ret = -ENXIO;
-		if ((filp->f_flags & O_NONBLOCK) && !pipe->readers)
+		if ((filp->f_flags & O_NONBLOCK) && !atomic_read(&pipe->readers))
 			goto err;
 
 		filp->f_op = &write_pipefifo_fops;
 		pipe->w_counter++;
-		if (!pipe->writers++)
+		if (atomic_inc_return(&pipe->writers) == 1)
 			wake_up_partner(inode);
 
-		if (!pipe->readers) {
+		if (!atomic_read(&pipe->readers)) {
 			if (wait_for_partner(inode, &pipe->r_counter))
 				goto err_wr;
 		}
@@ -104,11 +104,11 @@ static int fifo_open(struct inode *inode, struct file *filp)
 	 */
 		filp->f_op = &rdwr_pipefifo_fops;
 
-		pipe->readers++;
-		pipe->writers++;
+		atomic_inc(&pipe->readers);
+		atomic_inc(&pipe->writers);
 		pipe->r_counter++;
 		pipe->w_counter++;
-		if (pipe->readers == 1 || pipe->writers == 1)
+		if (atomic_read(&pipe->readers) == 1 || atomic_read(&pipe->writers) == 1)
 			wake_up_partner(inode);
 		break;
 
@@ -122,19 +122,19 @@ static int fifo_open(struct inode *inode, struct file *filp)
 	return 0;
 
 err_rd:
-	if (!--pipe->readers)
+	if (atomic_dec_and_test(&pipe->readers))
 		wake_up_interruptible(&pipe->wait);
 	ret = -ERESTARTSYS;
 	goto err;
 
 err_wr:
-	if (!--pipe->writers)
+	if (atomic_dec_and_test(&pipe->writers))
 		wake_up_interruptible(&pipe->wait);
 	ret = -ERESTARTSYS;
 	goto err;
 
 err:
-	if (!pipe->readers && !pipe->writers)
+	if (!atomic_read(&pipe->readers) && !atomic_read(&pipe->writers))
 		free_pipe_info(inode);
 
 err_nocleanup:
diff --git a/fs/file.c b/fs/file.c
index 3906d95..5fe379b 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -16,6 +16,7 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/file.h>
+#include <linux/security.h>
 #include <linux/fdtable.h>
 #include <linux/bitops.h>
 #include <linux/interrupt.h>
@@ -892,6 +893,7 @@ int replace_fd(unsigned fd, struct file *file, unsigned flags)
 	if (!file)
 		return __close_fd(files, fd);
 
+	gr_learn_resource(current, RLIMIT_NOFILE, fd, 0);
 	if (fd >= rlimit(RLIMIT_NOFILE))
 		return -EBADF;
 
@@ -918,6 +920,7 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags)
 	if (unlikely(oldfd == newfd))
 		return -EINVAL;
 
+	gr_learn_resource(current, RLIMIT_NOFILE, newfd, 0);
 	if (newfd >= rlimit(RLIMIT_NOFILE))
 		return -EBADF;
 
@@ -973,6 +976,7 @@ SYSCALL_DEFINE1(dup, unsigned int, fildes)
 int f_dupfd(unsigned int from, struct file *file, unsigned flags)
 {
 	int err;
+	gr_learn_resource(current, RLIMIT_NOFILE, from, 0);
 	if (from >= rlimit(RLIMIT_NOFILE))
 		return -EINVAL;
 	err = alloc_fd(from, flags);
diff --git a/fs/filesystems.c b/fs/filesystems.c
index 92567d9..fcd8cbf 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -273,7 +273,11 @@ struct file_system_type *get_fs_type(const char *name)
 	int len = dot ? dot - name : strlen(name);
 
 	fs = __get_fs_type(name, len);
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	if (!fs && (___request_module(true, "grsec_modharden_fs", "fs-%.*s", len, name) == 0))
+#else
 	if (!fs && (request_module("fs-%.*s", len, name) == 0))
+#endif
 		fs = __get_fs_type(name, len);
 
 	if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) {
diff --git a/fs/fs_struct.c b/fs/fs_struct.c
index d8ac61d..79a36f0 100644
--- a/fs/fs_struct.c
+++ b/fs/fs_struct.c
@@ -4,6 +4,7 @@
 #include <linux/path.h>
 #include <linux/slab.h>
 #include <linux/fs_struct.h>
+#include <linux/grsecurity.h>
 #include "internal.h"
 
 /*
@@ -19,6 +20,7 @@ void set_fs_root(struct fs_struct *fs, const struct path *path)
 	write_seqcount_begin(&fs->seq);
 	old_root = fs->root;
 	fs->root = *path;
+	gr_set_chroot_entries(current, path);
 	write_seqcount_end(&fs->seq);
 	spin_unlock(&fs->lock);
 	if (old_root.dentry)
@@ -67,6 +69,10 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
 			int hits = 0;
 			spin_lock(&fs->lock);
 			write_seqcount_begin(&fs->seq);
+			/* this root replacement is only done by pivot_root,
+			   leave grsec's chroot tagging alone for this task
+			   so that a pivoted root isn't treated as a chroot
+			*/
 			hits += replace_path(&fs->root, old_root, new_root);
 			hits += replace_path(&fs->pwd, old_root, new_root);
 			write_seqcount_end(&fs->seq);
@@ -99,7 +105,8 @@ void exit_fs(struct task_struct *tsk)
 		task_lock(tsk);
 		spin_lock(&fs->lock);
 		tsk->fs = NULL;
-		kill = !--fs->users;
+		gr_clear_chroot_entries(tsk);
+		kill = !atomic_dec_return(&fs->users);
 		spin_unlock(&fs->lock);
 		task_unlock(tsk);
 		if (kill)
@@ -112,7 +119,7 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
 	struct fs_struct *fs = kmem_cache_alloc(fs_cachep, GFP_KERNEL);
 	/* We don't need to lock fs - think why ;-) */
 	if (fs) {
-		fs->users = 1;
+		atomic_set(&fs->users, 1);
 		fs->in_exec = 0;
 		spin_lock_init(&fs->lock);
 		seqcount_init(&fs->seq);
@@ -121,6 +128,9 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
 		spin_lock(&old->lock);
 		fs->root = old->root;
 		path_get(&fs->root);
+		/* instead of calling gr_set_chroot_entries here,
+		   we call it from every caller of this function
+		*/
 		fs->pwd = old->pwd;
 		path_get(&fs->pwd);
 		spin_unlock(&old->lock);
@@ -139,8 +149,9 @@ int unshare_fs_struct(void)
 
 	task_lock(current);
 	spin_lock(&fs->lock);
-	kill = !--fs->users;
+	kill = !atomic_dec_return(&fs->users);
 	current->fs = new_fs;
+	gr_set_chroot_entries(current, &new_fs->root);
 	spin_unlock(&fs->lock);
 	task_unlock(current);
 
@@ -153,13 +164,13 @@ EXPORT_SYMBOL_GPL(unshare_fs_struct);
 
 int current_umask(void)
 {
-	return current->fs->umask;
+	return current->fs->umask | gr_acl_umask();
 }
 EXPORT_SYMBOL(current_umask);
 
 /* to be mentioned only in INIT_TASK */
 struct fs_struct init_fs = {
-	.users		= 1,
+	.users		= ATOMIC_INIT(1),
 	.lock		= __SPIN_LOCK_UNLOCKED(init_fs.lock),
 	.seq		= SEQCNT_ZERO,
 	.umask		= 0022,
diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index e2cba1f..17a25bb 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -68,11 +68,11 @@ struct fscache_cookie *__fscache_acquire_cookie(
 	       parent ? (char *) parent->def->name : "<no-parent>",
 	       def->name, netfs_data);
 
-	fscache_stat(&fscache_n_acquires);
+	fscache_stat_unchecked(&fscache_n_acquires);
 
 	/* if there's no parent cookie, then we don't create one here either */
 	if (!parent) {
-		fscache_stat(&fscache_n_acquires_null);
+		fscache_stat_unchecked(&fscache_n_acquires_null);
 		_leave(" [no parent]");
 		return NULL;
 	}
@@ -87,7 +87,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
 	/* allocate and initialise a cookie */
 	cookie = kmem_cache_alloc(fscache_cookie_jar, GFP_KERNEL);
 	if (!cookie) {
-		fscache_stat(&fscache_n_acquires_oom);
+		fscache_stat_unchecked(&fscache_n_acquires_oom);
 		_leave(" [ENOMEM]");
 		return NULL;
 	}
@@ -109,13 +109,13 @@ struct fscache_cookie *__fscache_acquire_cookie(
 
 	switch (cookie->def->type) {
 	case FSCACHE_COOKIE_TYPE_INDEX:
-		fscache_stat(&fscache_n_cookie_index);
+		fscache_stat_unchecked(&fscache_n_cookie_index);
 		break;
 	case FSCACHE_COOKIE_TYPE_DATAFILE:
-		fscache_stat(&fscache_n_cookie_data);
+		fscache_stat_unchecked(&fscache_n_cookie_data);
 		break;
 	default:
-		fscache_stat(&fscache_n_cookie_special);
+		fscache_stat_unchecked(&fscache_n_cookie_special);
 		break;
 	}
 
@@ -126,13 +126,13 @@ struct fscache_cookie *__fscache_acquire_cookie(
 		if (fscache_acquire_non_index_cookie(cookie) < 0) {
 			atomic_dec(&parent->n_children);
 			__fscache_cookie_put(cookie);
-			fscache_stat(&fscache_n_acquires_nobufs);
+			fscache_stat_unchecked(&fscache_n_acquires_nobufs);
 			_leave(" = NULL");
 			return NULL;
 		}
 	}
 
-	fscache_stat(&fscache_n_acquires_ok);
+	fscache_stat_unchecked(&fscache_n_acquires_ok);
 	_leave(" = %p", cookie);
 	return cookie;
 }
@@ -168,7 +168,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie)
 	cache = fscache_select_cache_for_object(cookie->parent);
 	if (!cache) {
 		up_read(&fscache_addremove_sem);
-		fscache_stat(&fscache_n_acquires_no_cache);
+		fscache_stat_unchecked(&fscache_n_acquires_no_cache);
 		_leave(" = -ENOMEDIUM [no cache]");
 		return -ENOMEDIUM;
 	}
@@ -255,12 +255,12 @@ static int fscache_alloc_object(struct fscache_cache *cache,
 	object = cache->ops->alloc_object(cache, cookie);
 	fscache_stat_d(&fscache_n_cop_alloc_object);
 	if (IS_ERR(object)) {
-		fscache_stat(&fscache_n_object_no_alloc);
+		fscache_stat_unchecked(&fscache_n_object_no_alloc);
 		ret = PTR_ERR(object);
 		goto error;
 	}
 
-	fscache_stat(&fscache_n_object_alloc);
+	fscache_stat_unchecked(&fscache_n_object_alloc);
 
 	object->debug_id = atomic_inc_return(&fscache_object_debug_id);
 
@@ -376,7 +376,7 @@ void __fscache_invalidate(struct fscache_cookie *cookie)
 
 	_enter("{%s}", cookie->def->name);
 
-	fscache_stat(&fscache_n_invalidates);
+	fscache_stat_unchecked(&fscache_n_invalidates);
 
 	/* Only permit invalidation of data files.  Invalidating an index will
 	 * require the caller to release all its attachments to the tree rooted
@@ -434,10 +434,10 @@ void __fscache_update_cookie(struct fscache_cookie *cookie)
 {
 	struct fscache_object *object;
 
-	fscache_stat(&fscache_n_updates);
+	fscache_stat_unchecked(&fscache_n_updates);
 
 	if (!cookie) {
-		fscache_stat(&fscache_n_updates_null);
+		fscache_stat_unchecked(&fscache_n_updates_null);
 		_leave(" [no cookie]");
 		return;
 	}
@@ -471,12 +471,12 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
 	struct fscache_object *object;
 	unsigned long event;
 
-	fscache_stat(&fscache_n_relinquishes);
+	fscache_stat_unchecked(&fscache_n_relinquishes);
 	if (retire)
-		fscache_stat(&fscache_n_relinquishes_retire);
+		fscache_stat_unchecked(&fscache_n_relinquishes_retire);
 
 	if (!cookie) {
-		fscache_stat(&fscache_n_relinquishes_null);
+		fscache_stat_unchecked(&fscache_n_relinquishes_null);
 		_leave(" [no cookie]");
 		return;
 	}
@@ -492,7 +492,7 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
 
 	/* wait for the cookie to finish being instantiated (or to fail) */
 	if (test_bit(FSCACHE_COOKIE_CREATING, &cookie->flags)) {
-		fscache_stat(&fscache_n_relinquishes_waitcrt);
+		fscache_stat_unchecked(&fscache_n_relinquishes_waitcrt);
 		wait_on_bit(&cookie->flags, FSCACHE_COOKIE_CREATING,
 			    fscache_wait_bit, TASK_UNINTERRUPTIBLE);
 	}
diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
index ee38fef..0a326d4 100644
--- a/fs/fscache/internal.h
+++ b/fs/fscache/internal.h
@@ -148,101 +148,101 @@ extern void fscache_proc_cleanup(void);
  * stats.c
  */
 #ifdef CONFIG_FSCACHE_STATS
-extern atomic_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
-extern atomic_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
+extern atomic_unchecked_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
+extern atomic_unchecked_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
 
-extern atomic_t fscache_n_op_pend;
-extern atomic_t fscache_n_op_run;
-extern atomic_t fscache_n_op_enqueue;
-extern atomic_t fscache_n_op_deferred_release;
-extern atomic_t fscache_n_op_release;
-extern atomic_t fscache_n_op_gc;
-extern atomic_t fscache_n_op_cancelled;
-extern atomic_t fscache_n_op_rejected;
+extern atomic_unchecked_t fscache_n_op_pend;
+extern atomic_unchecked_t fscache_n_op_run;
+extern atomic_unchecked_t fscache_n_op_enqueue;
+extern atomic_unchecked_t fscache_n_op_deferred_release;
+extern atomic_unchecked_t fscache_n_op_release;
+extern atomic_unchecked_t fscache_n_op_gc;
+extern atomic_unchecked_t fscache_n_op_cancelled;
+extern atomic_unchecked_t fscache_n_op_rejected;
 
-extern atomic_t fscache_n_attr_changed;
-extern atomic_t fscache_n_attr_changed_ok;
-extern atomic_t fscache_n_attr_changed_nobufs;
-extern atomic_t fscache_n_attr_changed_nomem;
-extern atomic_t fscache_n_attr_changed_calls;
+extern atomic_unchecked_t fscache_n_attr_changed;
+extern atomic_unchecked_t fscache_n_attr_changed_ok;
+extern atomic_unchecked_t fscache_n_attr_changed_nobufs;
+extern atomic_unchecked_t fscache_n_attr_changed_nomem;
+extern atomic_unchecked_t fscache_n_attr_changed_calls;
 
-extern atomic_t fscache_n_allocs;
-extern atomic_t fscache_n_allocs_ok;
-extern atomic_t fscache_n_allocs_wait;
-extern atomic_t fscache_n_allocs_nobufs;
-extern atomic_t fscache_n_allocs_intr;
-extern atomic_t fscache_n_allocs_object_dead;
-extern atomic_t fscache_n_alloc_ops;
-extern atomic_t fscache_n_alloc_op_waits;
+extern atomic_unchecked_t fscache_n_allocs;
+extern atomic_unchecked_t fscache_n_allocs_ok;
+extern atomic_unchecked_t fscache_n_allocs_wait;
+extern atomic_unchecked_t fscache_n_allocs_nobufs;
+extern atomic_unchecked_t fscache_n_allocs_intr;
+extern atomic_unchecked_t fscache_n_allocs_object_dead;
+extern atomic_unchecked_t fscache_n_alloc_ops;
+extern atomic_unchecked_t fscache_n_alloc_op_waits;
 
-extern atomic_t fscache_n_retrievals;
-extern atomic_t fscache_n_retrievals_ok;
-extern atomic_t fscache_n_retrievals_wait;
-extern atomic_t fscache_n_retrievals_nodata;
-extern atomic_t fscache_n_retrievals_nobufs;
-extern atomic_t fscache_n_retrievals_intr;
-extern atomic_t fscache_n_retrievals_nomem;
-extern atomic_t fscache_n_retrievals_object_dead;
-extern atomic_t fscache_n_retrieval_ops;
-extern atomic_t fscache_n_retrieval_op_waits;
+extern atomic_unchecked_t fscache_n_retrievals;
+extern atomic_unchecked_t fscache_n_retrievals_ok;
+extern atomic_unchecked_t fscache_n_retrievals_wait;
+extern atomic_unchecked_t fscache_n_retrievals_nodata;
+extern atomic_unchecked_t fscache_n_retrievals_nobufs;
+extern atomic_unchecked_t fscache_n_retrievals_intr;
+extern atomic_unchecked_t fscache_n_retrievals_nomem;
+extern atomic_unchecked_t fscache_n_retrievals_object_dead;
+extern atomic_unchecked_t fscache_n_retrieval_ops;
+extern atomic_unchecked_t fscache_n_retrieval_op_waits;
 
-extern atomic_t fscache_n_stores;
-extern atomic_t fscache_n_stores_ok;
-extern atomic_t fscache_n_stores_again;
-extern atomic_t fscache_n_stores_nobufs;
-extern atomic_t fscache_n_stores_oom;
-extern atomic_t fscache_n_store_ops;
-extern atomic_t fscache_n_store_calls;
-extern atomic_t fscache_n_store_pages;
-extern atomic_t fscache_n_store_radix_deletes;
-extern atomic_t fscache_n_store_pages_over_limit;
+extern atomic_unchecked_t fscache_n_stores;
+extern atomic_unchecked_t fscache_n_stores_ok;
+extern atomic_unchecked_t fscache_n_stores_again;
+extern atomic_unchecked_t fscache_n_stores_nobufs;
+extern atomic_unchecked_t fscache_n_stores_oom;
+extern atomic_unchecked_t fscache_n_store_ops;
+extern atomic_unchecked_t fscache_n_store_calls;
+extern atomic_unchecked_t fscache_n_store_pages;
+extern atomic_unchecked_t fscache_n_store_radix_deletes;
+extern atomic_unchecked_t fscache_n_store_pages_over_limit;
 
-extern atomic_t fscache_n_store_vmscan_not_storing;
-extern atomic_t fscache_n_store_vmscan_gone;
-extern atomic_t fscache_n_store_vmscan_busy;
-extern atomic_t fscache_n_store_vmscan_cancelled;
-extern atomic_t fscache_n_store_vmscan_wait;
+extern atomic_unchecked_t fscache_n_store_vmscan_not_storing;
+extern atomic_unchecked_t fscache_n_store_vmscan_gone;
+extern atomic_unchecked_t fscache_n_store_vmscan_busy;
+extern atomic_unchecked_t fscache_n_store_vmscan_cancelled;
+extern atomic_unchecked_t fscache_n_store_vmscan_wait;
 
-extern atomic_t fscache_n_marks;
-extern atomic_t fscache_n_uncaches;
+extern atomic_unchecked_t fscache_n_marks;
+extern atomic_unchecked_t fscache_n_uncaches;
 
-extern atomic_t fscache_n_acquires;
-extern atomic_t fscache_n_acquires_null;
-extern atomic_t fscache_n_acquires_no_cache;
-extern atomic_t fscache_n_acquires_ok;
-extern atomic_t fscache_n_acquires_nobufs;
-extern atomic_t fscache_n_acquires_oom;
+extern atomic_unchecked_t fscache_n_acquires;
+extern atomic_unchecked_t fscache_n_acquires_null;
+extern atomic_unchecked_t fscache_n_acquires_no_cache;
+extern atomic_unchecked_t fscache_n_acquires_ok;
+extern atomic_unchecked_t fscache_n_acquires_nobufs;
+extern atomic_unchecked_t fscache_n_acquires_oom;
 
-extern atomic_t fscache_n_invalidates;
-extern atomic_t fscache_n_invalidates_run;
+extern atomic_unchecked_t fscache_n_invalidates;
+extern atomic_unchecked_t fscache_n_invalidates_run;
 
-extern atomic_t fscache_n_updates;
-extern atomic_t fscache_n_updates_null;
-extern atomic_t fscache_n_updates_run;
+extern atomic_unchecked_t fscache_n_updates;
+extern atomic_unchecked_t fscache_n_updates_null;
+extern atomic_unchecked_t fscache_n_updates_run;
 
-extern atomic_t fscache_n_relinquishes;
-extern atomic_t fscache_n_relinquishes_null;
-extern atomic_t fscache_n_relinquishes_waitcrt;
-extern atomic_t fscache_n_relinquishes_retire;
+extern atomic_unchecked_t fscache_n_relinquishes;
+extern atomic_unchecked_t fscache_n_relinquishes_null;
+extern atomic_unchecked_t fscache_n_relinquishes_waitcrt;
+extern atomic_unchecked_t fscache_n_relinquishes_retire;
 
-extern atomic_t fscache_n_cookie_index;
-extern atomic_t fscache_n_cookie_data;
-extern atomic_t fscache_n_cookie_special;
+extern atomic_unchecked_t fscache_n_cookie_index;
+extern atomic_unchecked_t fscache_n_cookie_data;
+extern atomic_unchecked_t fscache_n_cookie_special;
 
-extern atomic_t fscache_n_object_alloc;
-extern atomic_t fscache_n_object_no_alloc;
-extern atomic_t fscache_n_object_lookups;
-extern atomic_t fscache_n_object_lookups_negative;
-extern atomic_t fscache_n_object_lookups_positive;
-extern atomic_t fscache_n_object_lookups_timed_out;
-extern atomic_t fscache_n_object_created;
-extern atomic_t fscache_n_object_avail;
-extern atomic_t fscache_n_object_dead;
+extern atomic_unchecked_t fscache_n_object_alloc;
+extern atomic_unchecked_t fscache_n_object_no_alloc;
+extern atomic_unchecked_t fscache_n_object_lookups;
+extern atomic_unchecked_t fscache_n_object_lookups_negative;
+extern atomic_unchecked_t fscache_n_object_lookups_positive;
+extern atomic_unchecked_t fscache_n_object_lookups_timed_out;
+extern atomic_unchecked_t fscache_n_object_created;
+extern atomic_unchecked_t fscache_n_object_avail;
+extern atomic_unchecked_t fscache_n_object_dead;
 
-extern atomic_t fscache_n_checkaux_none;
-extern atomic_t fscache_n_checkaux_okay;
-extern atomic_t fscache_n_checkaux_update;
-extern atomic_t fscache_n_checkaux_obsolete;
+extern atomic_unchecked_t fscache_n_checkaux_none;
+extern atomic_unchecked_t fscache_n_checkaux_okay;
+extern atomic_unchecked_t fscache_n_checkaux_update;
+extern atomic_unchecked_t fscache_n_checkaux_obsolete;
 
 extern atomic_t fscache_n_cop_alloc_object;
 extern atomic_t fscache_n_cop_lookup_object;
@@ -267,6 +267,11 @@ static inline void fscache_stat(atomic_t *stat)
 	atomic_inc(stat);
 }
 
+static inline void fscache_stat_unchecked(atomic_unchecked_t *stat)
+{
+	atomic_inc_unchecked(stat);
+}
+
 static inline void fscache_stat_d(atomic_t *stat)
 {
 	atomic_dec(stat);
@@ -279,6 +284,7 @@ extern const struct file_operations fscache_stats_fops;
 
 #define __fscache_stat(stat) (NULL)
 #define fscache_stat(stat) do {} while (0)
+#define fscache_stat_unchecked(stat) do {} while (0)
 #define fscache_stat_d(stat) do {} while (0)
 #endif
 
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index 50d41c1..10ee117 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -143,7 +143,7 @@ static void fscache_object_state_machine(struct fscache_object *object)
 		/* Invalidate an object on disk */
 	case FSCACHE_OBJECT_INVALIDATING:
 		clear_bit(FSCACHE_OBJECT_EV_INVALIDATE, &object->events);
-		fscache_stat(&fscache_n_invalidates_run);
+		fscache_stat_unchecked(&fscache_n_invalidates_run);
 		fscache_stat(&fscache_n_cop_invalidate_object);
 		fscache_invalidate_object(object);
 		fscache_stat_d(&fscache_n_cop_invalidate_object);
@@ -153,7 +153,7 @@ static void fscache_object_state_machine(struct fscache_object *object)
 		/* update the object metadata on disk */
 	case FSCACHE_OBJECT_UPDATING:
 		clear_bit(FSCACHE_OBJECT_EV_UPDATE, &object->events);
-		fscache_stat(&fscache_n_updates_run);
+		fscache_stat_unchecked(&fscache_n_updates_run);
 		fscache_stat(&fscache_n_cop_update_object);
 		object->cache->ops->update_object(object);
 		fscache_stat_d(&fscache_n_cop_update_object);
@@ -242,7 +242,7 @@ static void fscache_object_state_machine(struct fscache_object *object)
 		spin_lock(&object->lock);
 		object->state = FSCACHE_OBJECT_DEAD;
 		spin_unlock(&object->lock);
-		fscache_stat(&fscache_n_object_dead);
+		fscache_stat_unchecked(&fscache_n_object_dead);
 		goto terminal_transit;
 
 		/* handle the parent cache of this object being withdrawn from
@@ -257,7 +257,7 @@ static void fscache_object_state_machine(struct fscache_object *object)
 		spin_lock(&object->lock);
 		object->state = FSCACHE_OBJECT_DEAD;
 		spin_unlock(&object->lock);
-		fscache_stat(&fscache_n_object_dead);
+		fscache_stat_unchecked(&fscache_n_object_dead);
 		goto terminal_transit;
 
 		/* complain about the object being woken up once it is
@@ -495,7 +495,7 @@ static void fscache_lookup_object(struct fscache_object *object)
 	       parent->cookie->def->name, cookie->def->name,
 	       object->cache->tag->name);
 
-	fscache_stat(&fscache_n_object_lookups);
+	fscache_stat_unchecked(&fscache_n_object_lookups);
 	fscache_stat(&fscache_n_cop_lookup_object);
 	ret = object->cache->ops->lookup_object(object);
 	fscache_stat_d(&fscache_n_cop_lookup_object);
@@ -506,7 +506,7 @@ static void fscache_lookup_object(struct fscache_object *object)
 	if (ret == -ETIMEDOUT) {
 		/* probably stuck behind another object, so move this one to
 		 * the back of the queue */
-		fscache_stat(&fscache_n_object_lookups_timed_out);
+		fscache_stat_unchecked(&fscache_n_object_lookups_timed_out);
 		set_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events);
 	}
 
@@ -529,7 +529,7 @@ void fscache_object_lookup_negative(struct fscache_object *object)
 
 	spin_lock(&object->lock);
 	if (object->state == FSCACHE_OBJECT_LOOKING_UP) {
-		fscache_stat(&fscache_n_object_lookups_negative);
+		fscache_stat_unchecked(&fscache_n_object_lookups_negative);
 
 		/* transit here to allow write requests to begin stacking up
 		 * and read requests to begin returning ENODATA */
@@ -575,7 +575,7 @@ void fscache_obtained_object(struct fscache_object *object)
 	 * result, in which case there may be data available */
 	spin_lock(&object->lock);
 	if (object->state == FSCACHE_OBJECT_LOOKING_UP) {
-		fscache_stat(&fscache_n_object_lookups_positive);
+		fscache_stat_unchecked(&fscache_n_object_lookups_positive);
 
 		clear_bit(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags);
 
@@ -589,7 +589,7 @@ void fscache_obtained_object(struct fscache_object *object)
 		set_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events);
 	} else {
 		ASSERTCMP(object->state, ==, FSCACHE_OBJECT_CREATING);
-		fscache_stat(&fscache_n_object_created);
+		fscache_stat_unchecked(&fscache_n_object_created);
 
 		object->state = FSCACHE_OBJECT_AVAILABLE;
 		spin_unlock(&object->lock);
@@ -634,7 +634,7 @@ static void fscache_object_available(struct fscache_object *object)
 	fscache_enqueue_dependents(object);
 
 	fscache_hist(fscache_obj_instantiate_histogram, object->lookup_jif);
-	fscache_stat(&fscache_n_object_avail);
+	fscache_stat_unchecked(&fscache_n_object_avail);
 
 	_leave("");
 }
@@ -894,7 +894,7 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
 	enum fscache_checkaux result;
 
 	if (!object->cookie->def->check_aux) {
-		fscache_stat(&fscache_n_checkaux_none);
+		fscache_stat_unchecked(&fscache_n_checkaux_none);
 		return FSCACHE_CHECKAUX_OKAY;
 	}
 
@@ -903,17 +903,17 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
 	switch (result) {
 		/* entry okay as is */
 	case FSCACHE_CHECKAUX_OKAY:
-		fscache_stat(&fscache_n_checkaux_okay);
+		fscache_stat_unchecked(&fscache_n_checkaux_okay);
 		break;
 
 		/* entry requires update */
 	case FSCACHE_CHECKAUX_NEEDS_UPDATE:
-		fscache_stat(&fscache_n_checkaux_update);
+		fscache_stat_unchecked(&fscache_n_checkaux_update);
 		break;
 
 		/* entry requires deletion */
 	case FSCACHE_CHECKAUX_OBSOLETE:
-		fscache_stat(&fscache_n_checkaux_obsolete);
+		fscache_stat_unchecked(&fscache_n_checkaux_obsolete);
 		break;
 
 	default:
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index 762a9ec..2023284 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -17,7 +17,7 @@
 #include <linux/slab.h>
 #include "internal.h"
 
-atomic_t fscache_op_debug_id;
+atomic_unchecked_t fscache_op_debug_id;
 EXPORT_SYMBOL(fscache_op_debug_id);
 
 /**
@@ -39,7 +39,7 @@ void fscache_enqueue_operation(struct fscache_operation *op)
 	ASSERTCMP(atomic_read(&op->usage), >, 0);
 	ASSERTCMP(op->state, ==, FSCACHE_OP_ST_IN_PROGRESS);
 
-	fscache_stat(&fscache_n_op_enqueue);
+	fscache_stat_unchecked(&fscache_n_op_enqueue);
 	switch (op->flags & FSCACHE_OP_TYPE) {
 	case FSCACHE_OP_ASYNC:
 		_debug("queue async");
@@ -73,7 +73,7 @@ static void fscache_run_op(struct fscache_object *object,
 		wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
 	if (op->processor)
 		fscache_enqueue_operation(op);
-	fscache_stat(&fscache_n_op_run);
+	fscache_stat_unchecked(&fscache_n_op_run);
 }
 
 /*
@@ -105,11 +105,11 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
 		if (object->n_in_progress > 0) {
 			atomic_inc(&op->usage);
 			list_add_tail(&op->pend_link, &object->pending_ops);
-			fscache_stat(&fscache_n_op_pend);
+			fscache_stat_unchecked(&fscache_n_op_pend);
 		} else if (!list_empty(&object->pending_ops)) {
 			atomic_inc(&op->usage);
 			list_add_tail(&op->pend_link, &object->pending_ops);
-			fscache_stat(&fscache_n_op_pend);
+			fscache_stat_unchecked(&fscache_n_op_pend);
 			fscache_start_operations(object);
 		} else {
 			ASSERTCMP(object->n_in_progress, ==, 0);
@@ -125,7 +125,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
 		object->n_exclusive++;	/* reads and writes must wait */
 		atomic_inc(&op->usage);
 		list_add_tail(&op->pend_link, &object->pending_ops);
-		fscache_stat(&fscache_n_op_pend);
+		fscache_stat_unchecked(&fscache_n_op_pend);
 		ret = 0;
 	} else {
 		/* If we're in any other state, there must have been an I/O
@@ -215,11 +215,11 @@ int fscache_submit_op(struct fscache_object *object,
 		if (object->n_exclusive > 0) {
 			atomic_inc(&op->usage);
 			list_add_tail(&op->pend_link, &object->pending_ops);
-			fscache_stat(&fscache_n_op_pend);
+			fscache_stat_unchecked(&fscache_n_op_pend);
 		} else if (!list_empty(&object->pending_ops)) {
 			atomic_inc(&op->usage);
 			list_add_tail(&op->pend_link, &object->pending_ops);
-			fscache_stat(&fscache_n_op_pend);
+			fscache_stat_unchecked(&fscache_n_op_pend);
 			fscache_start_operations(object);
 		} else {
 			ASSERTCMP(object->n_exclusive, ==, 0);
@@ -231,12 +231,12 @@ int fscache_submit_op(struct fscache_object *object,
 		object->n_ops++;
 		atomic_inc(&op->usage);
 		list_add_tail(&op->pend_link, &object->pending_ops);
-		fscache_stat(&fscache_n_op_pend);
+		fscache_stat_unchecked(&fscache_n_op_pend);
 		ret = 0;
 	} else if (object->state == FSCACHE_OBJECT_DYING ||
 		   object->state == FSCACHE_OBJECT_LC_DYING ||
 		   object->state == FSCACHE_OBJECT_WITHDRAWING) {
-		fscache_stat(&fscache_n_op_rejected);
+		fscache_stat_unchecked(&fscache_n_op_rejected);
 		op->state = FSCACHE_OP_ST_CANCELLED;
 		ret = -ENOBUFS;
 	} else if (!test_bit(FSCACHE_IOERROR, &object->cache->flags)) {
@@ -315,7 +315,7 @@ int fscache_cancel_op(struct fscache_operation *op,
 	ret = -EBUSY;
 	if (op->state == FSCACHE_OP_ST_PENDING) {
 		ASSERT(!list_empty(&op->pend_link));
-		fscache_stat(&fscache_n_op_cancelled);
+		fscache_stat_unchecked(&fscache_n_op_cancelled);
 		list_del_init(&op->pend_link);
 		if (do_cancel)
 			do_cancel(op);
@@ -347,7 +347,7 @@ void fscache_cancel_all_ops(struct fscache_object *object)
 	while (!list_empty(&object->pending_ops)) {
 		op = list_entry(object->pending_ops.next,
 				struct fscache_operation, pend_link);
-		fscache_stat(&fscache_n_op_cancelled);
+		fscache_stat_unchecked(&fscache_n_op_cancelled);
 		list_del_init(&op->pend_link);
 
 		ASSERTCMP(op->state, ==, FSCACHE_OP_ST_PENDING);
@@ -419,7 +419,7 @@ void fscache_put_operation(struct fscache_operation *op)
 		    op->state, ==, FSCACHE_OP_ST_CANCELLED);
 	op->state = FSCACHE_OP_ST_DEAD;
 
-	fscache_stat(&fscache_n_op_release);
+	fscache_stat_unchecked(&fscache_n_op_release);
 
 	if (op->release) {
 		op->release(op);
@@ -442,7 +442,7 @@ void fscache_put_operation(struct fscache_operation *op)
 	 * lock, and defer it otherwise */
 	if (!spin_trylock(&object->lock)) {
 		_debug("defer put");
-		fscache_stat(&fscache_n_op_deferred_release);
+		fscache_stat_unchecked(&fscache_n_op_deferred_release);
 
 		cache = object->cache;
 		spin_lock(&cache->op_gc_list_lock);
@@ -495,7 +495,7 @@ void fscache_operation_gc(struct work_struct *work)
 
 		_debug("GC DEFERRED REL OBJ%x OP%x",
 		       object->debug_id, op->debug_id);
-		fscache_stat(&fscache_n_op_gc);
+		fscache_stat_unchecked(&fscache_n_op_gc);
 
 		ASSERTCMP(atomic_read(&op->usage), ==, 0);
 		ASSERTCMP(op->state, ==, FSCACHE_OP_ST_DEAD);
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index ff000e5..c44ec6d 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -61,7 +61,7 @@ try_again:
 	val = radix_tree_lookup(&cookie->stores, page->index);
 	if (!val) {
 		rcu_read_unlock();
-		fscache_stat(&fscache_n_store_vmscan_not_storing);
+		fscache_stat_unchecked(&fscache_n_store_vmscan_not_storing);
 		__fscache_uncache_page(cookie, page);
 		return true;
 	}
@@ -91,11 +91,11 @@ try_again:
 	spin_unlock(&cookie->stores_lock);
 
 	if (xpage) {
-		fscache_stat(&fscache_n_store_vmscan_cancelled);
-		fscache_stat(&fscache_n_store_radix_deletes);
+		fscache_stat_unchecked(&fscache_n_store_vmscan_cancelled);
+		fscache_stat_unchecked(&fscache_n_store_radix_deletes);
 		ASSERTCMP(xpage, ==, page);
 	} else {
-		fscache_stat(&fscache_n_store_vmscan_gone);
+		fscache_stat_unchecked(&fscache_n_store_vmscan_gone);
 	}
 
 	wake_up_bit(&cookie->flags, 0);
@@ -110,11 +110,11 @@ page_busy:
 	 * sleeping on memory allocation, so we may need to impose a timeout
 	 * too. */
 	if (!(gfp & __GFP_WAIT)) {
-		fscache_stat(&fscache_n_store_vmscan_busy);
+		fscache_stat_unchecked(&fscache_n_store_vmscan_busy);
 		return false;
 	}
 
-	fscache_stat(&fscache_n_store_vmscan_wait);
+	fscache_stat_unchecked(&fscache_n_store_vmscan_wait);
 	__fscache_wait_on_page_write(cookie, page);
 	gfp &= ~__GFP_WAIT;
 	goto try_again;
@@ -140,7 +140,7 @@ static void fscache_end_page_write(struct fscache_object *object,
 				     FSCACHE_COOKIE_STORING_TAG);
 		if (!radix_tree_tag_get(&cookie->stores, page->index,
 					FSCACHE_COOKIE_PENDING_TAG)) {
-			fscache_stat(&fscache_n_store_radix_deletes);
+			fscache_stat_unchecked(&fscache_n_store_radix_deletes);
 			xpage = radix_tree_delete(&cookie->stores, page->index);
 		}
 		spin_unlock(&cookie->stores_lock);
@@ -161,7 +161,7 @@ static void fscache_attr_changed_op(struct fscache_operation *op)
 
 	_enter("{OBJ%x OP%x}", object->debug_id, op->debug_id);
 
-	fscache_stat(&fscache_n_attr_changed_calls);
+	fscache_stat_unchecked(&fscache_n_attr_changed_calls);
 
 	if (fscache_object_is_active(object)) {
 		fscache_stat(&fscache_n_cop_attr_changed);
@@ -187,11 +187,11 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 
 	ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
 
-	fscache_stat(&fscache_n_attr_changed);
+	fscache_stat_unchecked(&fscache_n_attr_changed);
 
 	op = kzalloc(sizeof(*op), GFP_KERNEL);
 	if (!op) {
-		fscache_stat(&fscache_n_attr_changed_nomem);
+		fscache_stat_unchecked(&fscache_n_attr_changed_nomem);
 		_leave(" = -ENOMEM");
 		return -ENOMEM;
 	}
@@ -209,7 +209,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 	if (fscache_submit_exclusive_op(object, op) < 0)
 		goto nobufs;
 	spin_unlock(&cookie->lock);
-	fscache_stat(&fscache_n_attr_changed_ok);
+	fscache_stat_unchecked(&fscache_n_attr_changed_ok);
 	fscache_put_operation(op);
 	_leave(" = 0");
 	return 0;
@@ -217,7 +217,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 nobufs:
 	spin_unlock(&cookie->lock);
 	kfree(op);
-	fscache_stat(&fscache_n_attr_changed_nobufs);
+	fscache_stat_unchecked(&fscache_n_attr_changed_nobufs);
 	_leave(" = %d", -ENOBUFS);
 	return -ENOBUFS;
 }
@@ -255,7 +255,7 @@ static struct fscache_retrieval *fscache_alloc_retrieval(
 	/* allocate a retrieval operation and attempt to submit it */
 	op = kzalloc(sizeof(*op), GFP_NOIO);
 	if (!op) {
-		fscache_stat(&fscache_n_retrievals_nomem);
+		fscache_stat_unchecked(&fscache_n_retrievals_nomem);
 		return NULL;
 	}
 
@@ -283,13 +283,13 @@ static int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
 		return 0;
 	}
 
-	fscache_stat(&fscache_n_retrievals_wait);
+	fscache_stat_unchecked(&fscache_n_retrievals_wait);
 
 	jif = jiffies;
 	if (wait_on_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP,
 			fscache_wait_bit_interruptible,
 			TASK_INTERRUPTIBLE) != 0) {
-		fscache_stat(&fscache_n_retrievals_intr);
+		fscache_stat_unchecked(&fscache_n_retrievals_intr);
 		_leave(" = -ERESTARTSYS");
 		return -ERESTARTSYS;
 	}
@@ -318,8 +318,8 @@ static void fscache_do_cancel_retrieval(struct fscache_operation *_op)
  */
 static int fscache_wait_for_retrieval_activation(struct fscache_object *object,
 						 struct fscache_retrieval *op,
-						 atomic_t *stat_op_waits,
-						 atomic_t *stat_object_dead)
+						 atomic_unchecked_t *stat_op_waits,
+						 atomic_unchecked_t *stat_object_dead)
 {
 	int ret;
 
@@ -327,7 +327,7 @@ static int fscache_wait_for_retrieval_activation(struct fscache_object *object,
 		goto check_if_dead;
 
 	_debug(">>> WT");
-	fscache_stat(stat_op_waits);
+	fscache_stat_unchecked(stat_op_waits);
 	if (wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
 			fscache_wait_bit_interruptible,
 			TASK_INTERRUPTIBLE) != 0) {
@@ -344,14 +344,14 @@ static int fscache_wait_for_retrieval_activation(struct fscache_object *object,
 
 check_if_dead:
 	if (op->op.state == FSCACHE_OP_ST_CANCELLED) {
-		fscache_stat(stat_object_dead);
+		fscache_stat_unchecked(stat_object_dead);
 		_leave(" = -ENOBUFS [cancelled]");
 		return -ENOBUFS;
 	}
 	if (unlikely(fscache_object_is_dead(object))) {
 		pr_err("%s() = -ENOBUFS [obj dead %d]\n", __func__, op->op.state);
 		fscache_cancel_op(&op->op, fscache_do_cancel_retrieval);
-		fscache_stat(stat_object_dead);
+		fscache_stat_unchecked(stat_object_dead);
 		return -ENOBUFS;
 	}
 	return 0;
@@ -378,7 +378,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 
 	_enter("%p,%p,,,", cookie, page);
 
-	fscache_stat(&fscache_n_retrievals);
+	fscache_stat_unchecked(&fscache_n_retrievals);
 
 	if (hlist_empty(&cookie->backing_objects))
 		goto nobufs;
@@ -417,7 +417,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 		goto nobufs_unlock_dec;
 	spin_unlock(&cookie->lock);
 
-	fscache_stat(&fscache_n_retrieval_ops);
+	fscache_stat_unchecked(&fscache_n_retrieval_ops);
 
 	/* pin the netfs read context in case we need to do the actual netfs
 	 * read because we've encountered a cache read failure */
@@ -447,15 +447,15 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 
 error:
 	if (ret == -ENOMEM)
-		fscache_stat(&fscache_n_retrievals_nomem);
+		fscache_stat_unchecked(&fscache_n_retrievals_nomem);
 	else if (ret == -ERESTARTSYS)
-		fscache_stat(&fscache_n_retrievals_intr);
+		fscache_stat_unchecked(&fscache_n_retrievals_intr);
 	else if (ret == -ENODATA)
-		fscache_stat(&fscache_n_retrievals_nodata);
+		fscache_stat_unchecked(&fscache_n_retrievals_nodata);
 	else if (ret < 0)
-		fscache_stat(&fscache_n_retrievals_nobufs);
+		fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
 	else
-		fscache_stat(&fscache_n_retrievals_ok);
+		fscache_stat_unchecked(&fscache_n_retrievals_ok);
 
 	fscache_put_retrieval(op);
 	_leave(" = %d", ret);
@@ -467,7 +467,7 @@ nobufs_unlock:
 	spin_unlock(&cookie->lock);
 	kfree(op);
 nobufs:
-	fscache_stat(&fscache_n_retrievals_nobufs);
+	fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
 	_leave(" = -ENOBUFS");
 	return -ENOBUFS;
 }
@@ -505,7 +505,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 
 	_enter("%p,,%d,,,", cookie, *nr_pages);
 
-	fscache_stat(&fscache_n_retrievals);
+	fscache_stat_unchecked(&fscache_n_retrievals);
 
 	if (hlist_empty(&cookie->backing_objects))
 		goto nobufs;
@@ -541,7 +541,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 		goto nobufs_unlock_dec;
 	spin_unlock(&cookie->lock);
 
-	fscache_stat(&fscache_n_retrieval_ops);
+	fscache_stat_unchecked(&fscache_n_retrieval_ops);
 
 	/* pin the netfs read context in case we need to do the actual netfs
 	 * read because we've encountered a cache read failure */
@@ -571,15 +571,15 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 
 error:
 	if (ret == -ENOMEM)
-		fscache_stat(&fscache_n_retrievals_nomem);
+		fscache_stat_unchecked(&fscache_n_retrievals_nomem);
 	else if (ret == -ERESTARTSYS)
-		fscache_stat(&fscache_n_retrievals_intr);
+		fscache_stat_unchecked(&fscache_n_retrievals_intr);
 	else if (ret == -ENODATA)
-		fscache_stat(&fscache_n_retrievals_nodata);
+		fscache_stat_unchecked(&fscache_n_retrievals_nodata);
 	else if (ret < 0)
-		fscache_stat(&fscache_n_retrievals_nobufs);
+		fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
 	else
-		fscache_stat(&fscache_n_retrievals_ok);
+		fscache_stat_unchecked(&fscache_n_retrievals_ok);
 
 	fscache_put_retrieval(op);
 	_leave(" = %d", ret);
@@ -591,7 +591,7 @@ nobufs_unlock:
 	spin_unlock(&cookie->lock);
 	kfree(op);
 nobufs:
-	fscache_stat(&fscache_n_retrievals_nobufs);
+	fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
 	_leave(" = -ENOBUFS");
 	return -ENOBUFS;
 }
@@ -615,7 +615,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 
 	_enter("%p,%p,,,", cookie, page);
 
-	fscache_stat(&fscache_n_allocs);
+	fscache_stat_unchecked(&fscache_n_allocs);
 
 	if (hlist_empty(&cookie->backing_objects))
 		goto nobufs;
@@ -647,7 +647,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 		goto nobufs_unlock;
 	spin_unlock(&cookie->lock);
 
-	fscache_stat(&fscache_n_alloc_ops);
+	fscache_stat_unchecked(&fscache_n_alloc_ops);
 
 	ret = fscache_wait_for_retrieval_activation(
 		object, op,
@@ -663,11 +663,11 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 
 error:
 	if (ret == -ERESTARTSYS)
-		fscache_stat(&fscache_n_allocs_intr);
+		fscache_stat_unchecked(&fscache_n_allocs_intr);
 	else if (ret < 0)
-		fscache_stat(&fscache_n_allocs_nobufs);
+		fscache_stat_unchecked(&fscache_n_allocs_nobufs);
 	else
-		fscache_stat(&fscache_n_allocs_ok);
+		fscache_stat_unchecked(&fscache_n_allocs_ok);
 
 	fscache_put_retrieval(op);
 	_leave(" = %d", ret);
@@ -677,7 +677,7 @@ nobufs_unlock:
 	spin_unlock(&cookie->lock);
 	kfree(op);
 nobufs:
-	fscache_stat(&fscache_n_allocs_nobufs);
+	fscache_stat_unchecked(&fscache_n_allocs_nobufs);
 	_leave(" = -ENOBUFS");
 	return -ENOBUFS;
 }
@@ -736,7 +736,7 @@ static void fscache_write_op(struct fscache_operation *_op)
 
 	spin_lock(&cookie->stores_lock);
 
-	fscache_stat(&fscache_n_store_calls);
+	fscache_stat_unchecked(&fscache_n_store_calls);
 
 	/* find a page to store */
 	page = NULL;
@@ -747,7 +747,7 @@ static void fscache_write_op(struct fscache_operation *_op)
 	page = results[0];
 	_debug("gang %d [%lx]", n, page->index);
 	if (page->index > op->store_limit) {
-		fscache_stat(&fscache_n_store_pages_over_limit);
+		fscache_stat_unchecked(&fscache_n_store_pages_over_limit);
 		goto superseded;
 	}
 
@@ -759,7 +759,7 @@ static void fscache_write_op(struct fscache_operation *_op)
 	spin_unlock(&cookie->stores_lock);
 	spin_unlock(&object->lock);
 
-	fscache_stat(&fscache_n_store_pages);
+	fscache_stat_unchecked(&fscache_n_store_pages);
 	fscache_stat(&fscache_n_cop_write_page);
 	ret = object->cache->ops->write_page(op, page);
 	fscache_stat_d(&fscache_n_cop_write_page);
@@ -860,7 +860,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
 	ASSERT(PageFsCache(page));
 
-	fscache_stat(&fscache_n_stores);
+	fscache_stat_unchecked(&fscache_n_stores);
 
 	if (test_bit(FSCACHE_COOKIE_INVALIDATING, &cookie->flags)) {
 		_leave(" = -ENOBUFS [invalidating]");
@@ -916,7 +916,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	spin_unlock(&cookie->stores_lock);
 	spin_unlock(&object->lock);
 
-	op->op.debug_id	= atomic_inc_return(&fscache_op_debug_id);
+	op->op.debug_id	= atomic_inc_return_unchecked(&fscache_op_debug_id);
 	op->store_limit = object->store_limit;
 
 	if (fscache_submit_op(object, &op->op) < 0)
@@ -924,8 +924,8 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 
 	spin_unlock(&cookie->lock);
 	radix_tree_preload_end();
-	fscache_stat(&fscache_n_store_ops);
-	fscache_stat(&fscache_n_stores_ok);
+	fscache_stat_unchecked(&fscache_n_store_ops);
+	fscache_stat_unchecked(&fscache_n_stores_ok);
 
 	/* the work queue now carries its own ref on the object */
 	fscache_put_operation(&op->op);
@@ -933,14 +933,14 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	return 0;
 
 already_queued:
-	fscache_stat(&fscache_n_stores_again);
+	fscache_stat_unchecked(&fscache_n_stores_again);
 already_pending:
 	spin_unlock(&cookie->stores_lock);
 	spin_unlock(&object->lock);
 	spin_unlock(&cookie->lock);
 	radix_tree_preload_end();
 	kfree(op);
-	fscache_stat(&fscache_n_stores_ok);
+	fscache_stat_unchecked(&fscache_n_stores_ok);
 	_leave(" = 0");
 	return 0;
 
@@ -959,14 +959,14 @@ nobufs:
 	spin_unlock(&cookie->lock);
 	radix_tree_preload_end();
 	kfree(op);
-	fscache_stat(&fscache_n_stores_nobufs);
+	fscache_stat_unchecked(&fscache_n_stores_nobufs);
 	_leave(" = -ENOBUFS");
 	return -ENOBUFS;
 
 nomem_free:
 	kfree(op);
 nomem:
-	fscache_stat(&fscache_n_stores_oom);
+	fscache_stat_unchecked(&fscache_n_stores_oom);
 	_leave(" = -ENOMEM");
 	return -ENOMEM;
 }
@@ -984,7 +984,7 @@ void __fscache_uncache_page(struct fscache_cookie *cookie, struct page *page)
 	ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
 	ASSERTCMP(page, !=, NULL);
 
-	fscache_stat(&fscache_n_uncaches);
+	fscache_stat_unchecked(&fscache_n_uncaches);
 
 	/* cache withdrawal may beat us to it */
 	if (!PageFsCache(page))
@@ -1035,7 +1035,7 @@ void fscache_mark_page_cached(struct fscache_retrieval *op, struct page *page)
 	struct fscache_cookie *cookie = op->op.object->cookie;
 
 #ifdef CONFIG_FSCACHE_STATS
-	atomic_inc(&fscache_n_marks);
+	atomic_inc_unchecked(&fscache_n_marks);
 #endif
 
 	_debug("- mark %p{%lx}", page, page->index);
diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
index 40d13c7..ddf52b9 100644
--- a/fs/fscache/stats.c
+++ b/fs/fscache/stats.c
@@ -18,99 +18,99 @@
 /*
  * operation counters
  */
-atomic_t fscache_n_op_pend;
-atomic_t fscache_n_op_run;
-atomic_t fscache_n_op_enqueue;
-atomic_t fscache_n_op_requeue;
-atomic_t fscache_n_op_deferred_release;
-atomic_t fscache_n_op_release;
-atomic_t fscache_n_op_gc;
-atomic_t fscache_n_op_cancelled;
-atomic_t fscache_n_op_rejected;
+atomic_unchecked_t fscache_n_op_pend;
+atomic_unchecked_t fscache_n_op_run;
+atomic_unchecked_t fscache_n_op_enqueue;
+atomic_unchecked_t fscache_n_op_requeue;
+atomic_unchecked_t fscache_n_op_deferred_release;
+atomic_unchecked_t fscache_n_op_release;
+atomic_unchecked_t fscache_n_op_gc;
+atomic_unchecked_t fscache_n_op_cancelled;
+atomic_unchecked_t fscache_n_op_rejected;
 
-atomic_t fscache_n_attr_changed;
-atomic_t fscache_n_attr_changed_ok;
-atomic_t fscache_n_attr_changed_nobufs;
-atomic_t fscache_n_attr_changed_nomem;
-atomic_t fscache_n_attr_changed_calls;
+atomic_unchecked_t fscache_n_attr_changed;
+atomic_unchecked_t fscache_n_attr_changed_ok;
+atomic_unchecked_t fscache_n_attr_changed_nobufs;
+atomic_unchecked_t fscache_n_attr_changed_nomem;
+atomic_unchecked_t fscache_n_attr_changed_calls;
 
-atomic_t fscache_n_allocs;
-atomic_t fscache_n_allocs_ok;
-atomic_t fscache_n_allocs_wait;
-atomic_t fscache_n_allocs_nobufs;
-atomic_t fscache_n_allocs_intr;
-atomic_t fscache_n_allocs_object_dead;
-atomic_t fscache_n_alloc_ops;
-atomic_t fscache_n_alloc_op_waits;
+atomic_unchecked_t fscache_n_allocs;
+atomic_unchecked_t fscache_n_allocs_ok;
+atomic_unchecked_t fscache_n_allocs_wait;
+atomic_unchecked_t fscache_n_allocs_nobufs;
+atomic_unchecked_t fscache_n_allocs_intr;
+atomic_unchecked_t fscache_n_allocs_object_dead;
+atomic_unchecked_t fscache_n_alloc_ops;
+atomic_unchecked_t fscache_n_alloc_op_waits;
 
-atomic_t fscache_n_retrievals;
-atomic_t fscache_n_retrievals_ok;
-atomic_t fscache_n_retrievals_wait;
-atomic_t fscache_n_retrievals_nodata;
-atomic_t fscache_n_retrievals_nobufs;
-atomic_t fscache_n_retrievals_intr;
-atomic_t fscache_n_retrievals_nomem;
-atomic_t fscache_n_retrievals_object_dead;
-atomic_t fscache_n_retrieval_ops;
-atomic_t fscache_n_retrieval_op_waits;
+atomic_unchecked_t fscache_n_retrievals;
+atomic_unchecked_t fscache_n_retrievals_ok;
+atomic_unchecked_t fscache_n_retrievals_wait;
+atomic_unchecked_t fscache_n_retrievals_nodata;
+atomic_unchecked_t fscache_n_retrievals_nobufs;
+atomic_unchecked_t fscache_n_retrievals_intr;
+atomic_unchecked_t fscache_n_retrievals_nomem;
+atomic_unchecked_t fscache_n_retrievals_object_dead;
+atomic_unchecked_t fscache_n_retrieval_ops;
+atomic_unchecked_t fscache_n_retrieval_op_waits;
 
-atomic_t fscache_n_stores;
-atomic_t fscache_n_stores_ok;
-atomic_t fscache_n_stores_again;
-atomic_t fscache_n_stores_nobufs;
-atomic_t fscache_n_stores_oom;
-atomic_t fscache_n_store_ops;
-atomic_t fscache_n_store_calls;
-atomic_t fscache_n_store_pages;
-atomic_t fscache_n_store_radix_deletes;
-atomic_t fscache_n_store_pages_over_limit;
+atomic_unchecked_t fscache_n_stores;
+atomic_unchecked_t fscache_n_stores_ok;
+atomic_unchecked_t fscache_n_stores_again;
+atomic_unchecked_t fscache_n_stores_nobufs;
+atomic_unchecked_t fscache_n_stores_oom;
+atomic_unchecked_t fscache_n_store_ops;
+atomic_unchecked_t fscache_n_store_calls;
+atomic_unchecked_t fscache_n_store_pages;
+atomic_unchecked_t fscache_n_store_radix_deletes;
+atomic_unchecked_t fscache_n_store_pages_over_limit;
 
-atomic_t fscache_n_store_vmscan_not_storing;
-atomic_t fscache_n_store_vmscan_gone;
-atomic_t fscache_n_store_vmscan_busy;
-atomic_t fscache_n_store_vmscan_cancelled;
-atomic_t fscache_n_store_vmscan_wait;
+atomic_unchecked_t fscache_n_store_vmscan_not_storing;
+atomic_unchecked_t fscache_n_store_vmscan_gone;
+atomic_unchecked_t fscache_n_store_vmscan_busy;
+atomic_unchecked_t fscache_n_store_vmscan_cancelled;
+atomic_unchecked_t fscache_n_store_vmscan_wait;
 
-atomic_t fscache_n_marks;
-atomic_t fscache_n_uncaches;
+atomic_unchecked_t fscache_n_marks;
+atomic_unchecked_t fscache_n_uncaches;
 
-atomic_t fscache_n_acquires;
-atomic_t fscache_n_acquires_null;
-atomic_t fscache_n_acquires_no_cache;
-atomic_t fscache_n_acquires_ok;
-atomic_t fscache_n_acquires_nobufs;
-atomic_t fscache_n_acquires_oom;
+atomic_unchecked_t fscache_n_acquires;
+atomic_unchecked_t fscache_n_acquires_null;
+atomic_unchecked_t fscache_n_acquires_no_cache;
+atomic_unchecked_t fscache_n_acquires_ok;
+atomic_unchecked_t fscache_n_acquires_nobufs;
+atomic_unchecked_t fscache_n_acquires_oom;
 
-atomic_t fscache_n_invalidates;
-atomic_t fscache_n_invalidates_run;
+atomic_unchecked_t fscache_n_invalidates;
+atomic_unchecked_t fscache_n_invalidates_run;
 
-atomic_t fscache_n_updates;
-atomic_t fscache_n_updates_null;
-atomic_t fscache_n_updates_run;
+atomic_unchecked_t fscache_n_updates;
+atomic_unchecked_t fscache_n_updates_null;
+atomic_unchecked_t fscache_n_updates_run;
 
-atomic_t fscache_n_relinquishes;
-atomic_t fscache_n_relinquishes_null;
-atomic_t fscache_n_relinquishes_waitcrt;
-atomic_t fscache_n_relinquishes_retire;
+atomic_unchecked_t fscache_n_relinquishes;
+atomic_unchecked_t fscache_n_relinquishes_null;
+atomic_unchecked_t fscache_n_relinquishes_waitcrt;
+atomic_unchecked_t fscache_n_relinquishes_retire;
 
-atomic_t fscache_n_cookie_index;
-atomic_t fscache_n_cookie_data;
-atomic_t fscache_n_cookie_special;
+atomic_unchecked_t fscache_n_cookie_index;
+atomic_unchecked_t fscache_n_cookie_data;
+atomic_unchecked_t fscache_n_cookie_special;
 
-atomic_t fscache_n_object_alloc;
-atomic_t fscache_n_object_no_alloc;
-atomic_t fscache_n_object_lookups;
-atomic_t fscache_n_object_lookups_negative;
-atomic_t fscache_n_object_lookups_positive;
-atomic_t fscache_n_object_lookups_timed_out;
-atomic_t fscache_n_object_created;
-atomic_t fscache_n_object_avail;
-atomic_t fscache_n_object_dead;
+atomic_unchecked_t fscache_n_object_alloc;
+atomic_unchecked_t fscache_n_object_no_alloc;
+atomic_unchecked_t fscache_n_object_lookups;
+atomic_unchecked_t fscache_n_object_lookups_negative;
+atomic_unchecked_t fscache_n_object_lookups_positive;
+atomic_unchecked_t fscache_n_object_lookups_timed_out;
+atomic_unchecked_t fscache_n_object_created;
+atomic_unchecked_t fscache_n_object_avail;
+atomic_unchecked_t fscache_n_object_dead;
 
-atomic_t fscache_n_checkaux_none;
-atomic_t fscache_n_checkaux_okay;
-atomic_t fscache_n_checkaux_update;
-atomic_t fscache_n_checkaux_obsolete;
+atomic_unchecked_t fscache_n_checkaux_none;
+atomic_unchecked_t fscache_n_checkaux_okay;
+atomic_unchecked_t fscache_n_checkaux_update;
+atomic_unchecked_t fscache_n_checkaux_obsolete;
 
 atomic_t fscache_n_cop_alloc_object;
 atomic_t fscache_n_cop_lookup_object;
@@ -138,118 +138,118 @@ static int fscache_stats_show(struct seq_file *m, void *v)
 	seq_puts(m, "FS-Cache statistics\n");
 
 	seq_printf(m, "Cookies: idx=%u dat=%u spc=%u\n",
-		   atomic_read(&fscache_n_cookie_index),
-		   atomic_read(&fscache_n_cookie_data),
-		   atomic_read(&fscache_n_cookie_special));
+		   atomic_read_unchecked(&fscache_n_cookie_index),
+		   atomic_read_unchecked(&fscache_n_cookie_data),
+		   atomic_read_unchecked(&fscache_n_cookie_special));
 
 	seq_printf(m, "Objects: alc=%u nal=%u avl=%u ded=%u\n",
-		   atomic_read(&fscache_n_object_alloc),
-		   atomic_read(&fscache_n_object_no_alloc),
-		   atomic_read(&fscache_n_object_avail),
-		   atomic_read(&fscache_n_object_dead));
+		   atomic_read_unchecked(&fscache_n_object_alloc),
+		   atomic_read_unchecked(&fscache_n_object_no_alloc),
+		   atomic_read_unchecked(&fscache_n_object_avail),
+		   atomic_read_unchecked(&fscache_n_object_dead));
 	seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n",
-		   atomic_read(&fscache_n_checkaux_none),
-		   atomic_read(&fscache_n_checkaux_okay),
-		   atomic_read(&fscache_n_checkaux_update),
-		   atomic_read(&fscache_n_checkaux_obsolete));
+		   atomic_read_unchecked(&fscache_n_checkaux_none),
+		   atomic_read_unchecked(&fscache_n_checkaux_okay),
+		   atomic_read_unchecked(&fscache_n_checkaux_update),
+		   atomic_read_unchecked(&fscache_n_checkaux_obsolete));
 
 	seq_printf(m, "Pages  : mrk=%u unc=%u\n",
-		   atomic_read(&fscache_n_marks),
-		   atomic_read(&fscache_n_uncaches));
+		   atomic_read_unchecked(&fscache_n_marks),
+		   atomic_read_unchecked(&fscache_n_uncaches));
 
 	seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u"
 		   " oom=%u\n",
-		   atomic_read(&fscache_n_acquires),
-		   atomic_read(&fscache_n_acquires_null),
-		   atomic_read(&fscache_n_acquires_no_cache),
-		   atomic_read(&fscache_n_acquires_ok),
-		   atomic_read(&fscache_n_acquires_nobufs),
-		   atomic_read(&fscache_n_acquires_oom));
+		   atomic_read_unchecked(&fscache_n_acquires),
+		   atomic_read_unchecked(&fscache_n_acquires_null),
+		   atomic_read_unchecked(&fscache_n_acquires_no_cache),
+		   atomic_read_unchecked(&fscache_n_acquires_ok),
+		   atomic_read_unchecked(&fscache_n_acquires_nobufs),
+		   atomic_read_unchecked(&fscache_n_acquires_oom));
 
 	seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n",
-		   atomic_read(&fscache_n_object_lookups),
-		   atomic_read(&fscache_n_object_lookups_negative),
-		   atomic_read(&fscache_n_object_lookups_positive),
-		   atomic_read(&fscache_n_object_created),
-		   atomic_read(&fscache_n_object_lookups_timed_out));
+		   atomic_read_unchecked(&fscache_n_object_lookups),
+		   atomic_read_unchecked(&fscache_n_object_lookups_negative),
+		   atomic_read_unchecked(&fscache_n_object_lookups_positive),
+		   atomic_read_unchecked(&fscache_n_object_created),
+		   atomic_read_unchecked(&fscache_n_object_lookups_timed_out));
 
 	seq_printf(m, "Invals : n=%u run=%u\n",
-		   atomic_read(&fscache_n_invalidates),
-		   atomic_read(&fscache_n_invalidates_run));
+		   atomic_read_unchecked(&fscache_n_invalidates),
+		   atomic_read_unchecked(&fscache_n_invalidates_run));
 
 	seq_printf(m, "Updates: n=%u nul=%u run=%u\n",
-		   atomic_read(&fscache_n_updates),
-		   atomic_read(&fscache_n_updates_null),
-		   atomic_read(&fscache_n_updates_run));
+		   atomic_read_unchecked(&fscache_n_updates),
+		   atomic_read_unchecked(&fscache_n_updates_null),
+		   atomic_read_unchecked(&fscache_n_updates_run));
 
 	seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n",
-		   atomic_read(&fscache_n_relinquishes),
-		   atomic_read(&fscache_n_relinquishes_null),
-		   atomic_read(&fscache_n_relinquishes_waitcrt),
-		   atomic_read(&fscache_n_relinquishes_retire));
+		   atomic_read_unchecked(&fscache_n_relinquishes),
+		   atomic_read_unchecked(&fscache_n_relinquishes_null),
+		   atomic_read_unchecked(&fscache_n_relinquishes_waitcrt),
+		   atomic_read_unchecked(&fscache_n_relinquishes_retire));
 
 	seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n",
-		   atomic_read(&fscache_n_attr_changed),
-		   atomic_read(&fscache_n_attr_changed_ok),
-		   atomic_read(&fscache_n_attr_changed_nobufs),
-		   atomic_read(&fscache_n_attr_changed_nomem),
-		   atomic_read(&fscache_n_attr_changed_calls));
+		   atomic_read_unchecked(&fscache_n_attr_changed),
+		   atomic_read_unchecked(&fscache_n_attr_changed_ok),
+		   atomic_read_unchecked(&fscache_n_attr_changed_nobufs),
+		   atomic_read_unchecked(&fscache_n_attr_changed_nomem),
+		   atomic_read_unchecked(&fscache_n_attr_changed_calls));
 
 	seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n",
-		   atomic_read(&fscache_n_allocs),
-		   atomic_read(&fscache_n_allocs_ok),
-		   atomic_read(&fscache_n_allocs_wait),
-		   atomic_read(&fscache_n_allocs_nobufs),
-		   atomic_read(&fscache_n_allocs_intr));
+		   atomic_read_unchecked(&fscache_n_allocs),
+		   atomic_read_unchecked(&fscache_n_allocs_ok),
+		   atomic_read_unchecked(&fscache_n_allocs_wait),
+		   atomic_read_unchecked(&fscache_n_allocs_nobufs),
+		   atomic_read_unchecked(&fscache_n_allocs_intr));
 	seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n",
-		   atomic_read(&fscache_n_alloc_ops),
-		   atomic_read(&fscache_n_alloc_op_waits),
-		   atomic_read(&fscache_n_allocs_object_dead));
+		   atomic_read_unchecked(&fscache_n_alloc_ops),
+		   atomic_read_unchecked(&fscache_n_alloc_op_waits),
+		   atomic_read_unchecked(&fscache_n_allocs_object_dead));
 
 	seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u"
 		   " int=%u oom=%u\n",
-		   atomic_read(&fscache_n_retrievals),
-		   atomic_read(&fscache_n_retrievals_ok),
-		   atomic_read(&fscache_n_retrievals_wait),
-		   atomic_read(&fscache_n_retrievals_nodata),
-		   atomic_read(&fscache_n_retrievals_nobufs),
-		   atomic_read(&fscache_n_retrievals_intr),
-		   atomic_read(&fscache_n_retrievals_nomem));
+		   atomic_read_unchecked(&fscache_n_retrievals),
+		   atomic_read_unchecked(&fscache_n_retrievals_ok),
+		   atomic_read_unchecked(&fscache_n_retrievals_wait),
+		   atomic_read_unchecked(&fscache_n_retrievals_nodata),
+		   atomic_read_unchecked(&fscache_n_retrievals_nobufs),
+		   atomic_read_unchecked(&fscache_n_retrievals_intr),
+		   atomic_read_unchecked(&fscache_n_retrievals_nomem));
 	seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n",
-		   atomic_read(&fscache_n_retrieval_ops),
-		   atomic_read(&fscache_n_retrieval_op_waits),
-		   atomic_read(&fscache_n_retrievals_object_dead));
+		   atomic_read_unchecked(&fscache_n_retrieval_ops),
+		   atomic_read_unchecked(&fscache_n_retrieval_op_waits),
+		   atomic_read_unchecked(&fscache_n_retrievals_object_dead));
 
 	seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n",
-		   atomic_read(&fscache_n_stores),
-		   atomic_read(&fscache_n_stores_ok),
-		   atomic_read(&fscache_n_stores_again),
-		   atomic_read(&fscache_n_stores_nobufs),
-		   atomic_read(&fscache_n_stores_oom));
+		   atomic_read_unchecked(&fscache_n_stores),
+		   atomic_read_unchecked(&fscache_n_stores_ok),
+		   atomic_read_unchecked(&fscache_n_stores_again),
+		   atomic_read_unchecked(&fscache_n_stores_nobufs),
+		   atomic_read_unchecked(&fscache_n_stores_oom));
 	seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n",
-		   atomic_read(&fscache_n_store_ops),
-		   atomic_read(&fscache_n_store_calls),
-		   atomic_read(&fscache_n_store_pages),
-		   atomic_read(&fscache_n_store_radix_deletes),
-		   atomic_read(&fscache_n_store_pages_over_limit));
+		   atomic_read_unchecked(&fscache_n_store_ops),
+		   atomic_read_unchecked(&fscache_n_store_calls),
+		   atomic_read_unchecked(&fscache_n_store_pages),
+		   atomic_read_unchecked(&fscache_n_store_radix_deletes),
+		   atomic_read_unchecked(&fscache_n_store_pages_over_limit));
 
 	seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u wt=%u\n",
-		   atomic_read(&fscache_n_store_vmscan_not_storing),
-		   atomic_read(&fscache_n_store_vmscan_gone),
-		   atomic_read(&fscache_n_store_vmscan_busy),
-		   atomic_read(&fscache_n_store_vmscan_cancelled),
-		   atomic_read(&fscache_n_store_vmscan_wait));
+		   atomic_read_unchecked(&fscache_n_store_vmscan_not_storing),
+		   atomic_read_unchecked(&fscache_n_store_vmscan_gone),
+		   atomic_read_unchecked(&fscache_n_store_vmscan_busy),
+		   atomic_read_unchecked(&fscache_n_store_vmscan_cancelled),
+		   atomic_read_unchecked(&fscache_n_store_vmscan_wait));
 
 	seq_printf(m, "Ops    : pend=%u run=%u enq=%u can=%u rej=%u\n",
-		   atomic_read(&fscache_n_op_pend),
-		   atomic_read(&fscache_n_op_run),
-		   atomic_read(&fscache_n_op_enqueue),
-		   atomic_read(&fscache_n_op_cancelled),
-		   atomic_read(&fscache_n_op_rejected));
+		   atomic_read_unchecked(&fscache_n_op_pend),
+		   atomic_read_unchecked(&fscache_n_op_run),
+		   atomic_read_unchecked(&fscache_n_op_enqueue),
+		   atomic_read_unchecked(&fscache_n_op_cancelled),
+		   atomic_read_unchecked(&fscache_n_op_rejected));
 	seq_printf(m, "Ops    : dfr=%u rel=%u gc=%u\n",
-		   atomic_read(&fscache_n_op_deferred_release),
-		   atomic_read(&fscache_n_op_release),
-		   atomic_read(&fscache_n_op_gc));
+		   atomic_read_unchecked(&fscache_n_op_deferred_release),
+		   atomic_read_unchecked(&fscache_n_op_release),
+		   atomic_read_unchecked(&fscache_n_op_gc));
 
 	seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n",
 		   atomic_read(&fscache_n_cop_alloc_object),
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index 6f96a8d..6019bb9 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -597,10 +597,12 @@ static int __init cuse_init(void)
 		INIT_LIST_HEAD(&cuse_conntbl[i]);
 
 	/* inherit and extend fuse_dev_operations */
-	cuse_channel_fops		= fuse_dev_operations;
-	cuse_channel_fops.owner		= THIS_MODULE;
-	cuse_channel_fops.open		= cuse_channel_open;
-	cuse_channel_fops.release	= cuse_channel_release;
+	pax_open_kernel();
+	memcpy((void *)&cuse_channel_fops, &fuse_dev_operations, sizeof(fuse_dev_operations));
+	*(void **)&cuse_channel_fops.owner	= THIS_MODULE;
+	*(void **)&cuse_channel_fops.open	= cuse_channel_open;
+	*(void **)&cuse_channel_fops.release	= cuse_channel_release;
+	pax_close_kernel();
 
 	cuse_class = class_create(THIS_MODULE, "cuse");
 	if (IS_ERR(cuse_class))
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 11dfa0c..6f64416 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1294,7 +1294,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
 	ret = 0;
 	pipe_lock(pipe);
 
-	if (!pipe->readers) {
+	if (!atomic_read(&pipe->readers)) {
 		send_sig(SIGPIPE, current, 0);
 		if (!ret)
 			ret = -EPIPE;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index ff15522..092a0f6 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1409,7 +1409,7 @@ static char *read_link(struct dentry *dentry)
 	return link;
 }
 
-static void free_link(char *link)
+static void free_link(const char *link)
 {
 	if (!IS_ERR(link))
 		free_page((unsigned long) link);
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index cc00bd1..3edb692 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1500,7 +1500,7 @@ out:
 
 static void gfs2_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
 {
-	char *s = nd_get_link(nd);
+	const char *s = nd_get_link(nd);
 	if (!IS_ERR(s))
 		kfree(s);
 }
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index a3f868a..bb308ae 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -152,6 +152,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	struct hstate *h = hstate_file(file);
+	unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
 	struct vm_unmapped_area_info info;
 
 	if (len & ~huge_page_mask(h))
@@ -165,17 +166,26 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 		return addr;
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
 	info.flags = 0;
 	info.length = len;
 	info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP)
+		info.low_limit += mm->delta_mmap;
+#endif
+
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
@@ -898,7 +908,7 @@ static struct file_system_type hugetlbfs_fs_type = {
 };
 MODULE_ALIAS_FS("hugetlbfs");
 
-static struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
+struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
 
 static int can_do_hugetlb_shm(void)
 {
diff --git a/fs/inode.c b/fs/inode.c
index a898b3d..9b5a214 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -878,8 +878,8 @@ unsigned int get_next_ino(void)
 
 #ifdef CONFIG_SMP
 	if (unlikely((res & (LAST_INO_BATCH-1)) == 0)) {
-		static atomic_t shared_last_ino;
-		int next = atomic_add_return(LAST_INO_BATCH, &shared_last_ino);
+		static atomic_unchecked_t shared_last_ino;
+		int next = atomic_add_return_unchecked(LAST_INO_BATCH, &shared_last_ino);
 
 		res = next - LAST_INO_BATCH;
 	}
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index 4a6cf28..d3a29d3 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -452,7 +452,8 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
 		struct jffs2_unknown_node marker = {
 			.magic =	cpu_to_je16(JFFS2_MAGIC_BITMASK),
 			.nodetype =	cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
-			.totlen =	cpu_to_je32(c->cleanmarker_size)
+			.totlen =	cpu_to_je32(c->cleanmarker_size),
+			.hdr_crc =	cpu_to_je32(0)
 		};
 
 		jffs2_prealloc_raw_node_refs(c, jeb, 1);
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index a6597d6..41b30ec 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -1023,7 +1023,8 @@ static const struct jffs2_unknown_node oob_cleanmarker =
 {
 	.magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK),
 	.nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
-	.totlen = constant_cpu_to_je32(8)
+	.totlen = constant_cpu_to_je32(8),
+	.hdr_crc = constant_cpu_to_je32(0)
 };
 
 /*
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 2003e83..40db287 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -856,7 +856,7 @@ static int __init init_jfs_fs(void)
 
 	jfs_inode_cachep =
 	    kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0,
-			    SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
+			    SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_USERCOPY,
 			    init_once);
 	if (jfs_inode_cachep == NULL)
 		return -ENOMEM;
diff --git a/fs/libfs.c b/fs/libfs.c
index 916da8c..1588998 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -165,6 +165,9 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
 
 			for (p=q->next; p != &dentry->d_subdirs; p=p->next) {
 				struct dentry *next;
+				char d_name[sizeof(next->d_iname)];
+				const unsigned char *name;
+
 				next = list_entry(p, struct dentry, d_u.d_child);
 				spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
 				if (!simple_positive(next)) {
@@ -174,7 +177,12 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
 
 				spin_unlock(&next->d_lock);
 				spin_unlock(&dentry->d_lock);
-				if (filldir(dirent, next->d_name.name, 
+				name = next->d_name.name;
+				if (name == next->d_iname) {
+					memcpy(d_name, name, next->d_name.len);
+					name = d_name;
+				}
+				if (filldir(dirent, name, 
 					    next->d_name.len, filp->f_pos, 
 					    next->d_inode->i_ino, 
 					    dt_type(next->d_inode)) < 0)
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 9760ecb..9b838ef 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt_cancel_ops;
 /*
  * Cookie counter for NLM requests
  */
-static atomic_t	nlm_cookie = ATOMIC_INIT(0x1234);
+static atomic_unchecked_t	nlm_cookie = ATOMIC_INIT(0x1234);
 
 void nlmclnt_next_cookie(struct nlm_cookie *c)
 {
-	u32	cookie = atomic_inc_return(&nlm_cookie);
+	u32	cookie = atomic_inc_return_unchecked(&nlm_cookie);
 
 	memcpy(c->data, &cookie, 4);
 	c->len=4;
diff --git a/fs/locks.c b/fs/locks.c
index cb424a4..850e4dd 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -2064,16 +2064,16 @@ void locks_remove_flock(struct file *filp)
 		return;
 
 	if (filp->f_op && filp->f_op->flock) {
-		struct file_lock fl = {
+		struct file_lock flock = {
 			.fl_pid = current->tgid,
 			.fl_file = filp,
 			.fl_flags = FL_FLOCK,
 			.fl_type = F_UNLCK,
 			.fl_end = OFFSET_MAX,
 		};
-		filp->f_op->flock(filp, F_SETLKW, &fl);
-		if (fl.fl_ops && fl.fl_ops->fl_release_private)
-			fl.fl_ops->fl_release_private(&fl);
+		filp->f_op->flock(filp, F_SETLKW, &flock);
+		if (flock.fl_ops && flock.fl_ops->fl_release_private)
+			flock.fl_ops->fl_release_private(&flock);
 	}
 
 	lock_flocks();
diff --git a/fs/namei.c b/fs/namei.c
index 85e40d1..b66744e 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -319,16 +319,32 @@ int generic_permission(struct inode *inode, int mask)
 	if (ret != -EACCES)
 		return ret;
 
+#ifdef CONFIG_GRKERNSEC
+	/* we'll block if we have to log due to a denied capability use */
+	if (mask & MAY_NOT_BLOCK)
+		return -ECHILD;
+#endif
+
 	if (S_ISDIR(inode->i_mode)) {
 		/* DACs are overridable for directories */
-		if (inode_capable(inode, CAP_DAC_OVERRIDE))
-			return 0;
 		if (!(mask & MAY_WRITE))
-			if (inode_capable(inode, CAP_DAC_READ_SEARCH))
+			if (inode_capable_nolog(inode, CAP_DAC_OVERRIDE) ||
+			    inode_capable(inode, CAP_DAC_READ_SEARCH))
 				return 0;
+		if (inode_capable(inode, CAP_DAC_OVERRIDE))
+			return 0;
 		return -EACCES;
 	}
 	/*
+	 * Searching includes executable on directories, else just read.
+	 */
+	mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
+	if (mask == MAY_READ)
+		if (inode_capable_nolog(inode, CAP_DAC_OVERRIDE) ||
+		    inode_capable(inode, CAP_DAC_READ_SEARCH))
+			return 0;
+
+	/*
 	 * Read/write DACs are always overridable.
 	 * Executable DACs are overridable when there is
 	 * at least one exec bit set.
@@ -337,14 +353,6 @@ int generic_permission(struct inode *inode, int mask)
 		if (inode_capable(inode, CAP_DAC_OVERRIDE))
 			return 0;
 
-	/*
-	 * Searching includes executable on directories, else just read.
-	 */
-	mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
-	if (mask == MAY_READ)
-		if (inode_capable(inode, CAP_DAC_READ_SEARCH))
-			return 0;
-
 	return -EACCES;
 }
 
@@ -820,7 +828,7 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
 {
 	struct dentry *dentry = link->dentry;
 	int error;
-	char *s;
+	const char *s;
 
 	BUG_ON(nd->flags & LOOKUP_RCU);
 
@@ -841,6 +849,12 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
 	if (error)
 		goto out_put_nd_path;
 
+	if (gr_handle_follow_link(dentry->d_parent->d_inode,
+				  dentry->d_inode, dentry, nd->path.mnt)) {
+		error = -EACCES;
+		goto out_put_nd_path;
+	}	
+
 	nd->last_type = LAST_BIND;
 	*p = dentry->d_inode->i_op->follow_link(dentry, nd);
 	error = PTR_ERR(*p);
@@ -1588,6 +1602,8 @@ static inline int nested_symlink(struct path *path, struct nameidata *nd)
 		if (res)
 			break;
 		res = walk_component(nd, path, LOOKUP_FOLLOW);
+		if (res >= 0 && gr_handle_symlink_owner(&link, nd->inode))
+			res = -EACCES;
 		put_link(nd, &link, cookie);
 	} while (res > 0);
 
@@ -1686,7 +1702,7 @@ EXPORT_SYMBOL(full_name_hash);
 static inline unsigned long hash_name(const char *name, unsigned int *hashp)
 {
 	unsigned long a, b, adata, bdata, mask, hash, len;
-	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
+	static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
 
 	hash = a = 0;
 	len = -sizeof(unsigned long);
@@ -1968,6 +1984,8 @@ static int path_lookupat(int dfd, const char *name,
 			if (err)
 				break;
 			err = lookup_last(nd, &path);
+			if (!err && gr_handle_symlink_owner(&link, nd->inode))
+				err = -EACCES;
 			put_link(nd, &link, cookie);
 		}
 	}
@@ -1975,6 +1993,13 @@ static int path_lookupat(int dfd, const char *name,
 	if (!err)
 		err = complete_walk(nd);
 
+	if (!err && !(nd->flags & LOOKUP_PARENT)) {
+		if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
+			path_put(&nd->path);
+			err = -ENOENT;
+		}
+	}
+
 	if (!err && nd->flags & LOOKUP_DIRECTORY) {
 		if (!nd->inode->i_op->lookup) {
 			path_put(&nd->path);
@@ -2002,8 +2027,15 @@ static int filename_lookup(int dfd, struct filename *name,
 		retval = path_lookupat(dfd, name->name,
 						flags | LOOKUP_REVAL, nd);
 
-	if (likely(!retval))
+	if (likely(!retval)) {
 		audit_inode(name, nd->path.dentry, flags & LOOKUP_PARENT);
+		if (name->name[0] != '/' && nd->path.dentry && nd->inode) {
+			if (!gr_chroot_fchdir(nd->path.dentry, nd->path.mnt)) {
+				path_put(&nd->path);
+				return -ENOENT;
+			}
+		}
+	}
 	return retval;
 }
 
@@ -2381,6 +2413,13 @@ static int may_open(struct path *path, int acc_mode, int flag)
 	if (flag & O_NOATIME && !inode_owner_or_capable(inode))
 		return -EPERM;
 
+	if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode))
+		return -EPERM;
+	if (gr_handle_rawio(inode))
+		return -EPERM;
+	if (!gr_acl_handle_open(dentry, path->mnt, acc_mode))
+		return -EACCES;
+
 	return 0;
 }
 
@@ -2602,7 +2641,7 @@ looked_up:
  * cleared otherwise prior to returning.
  */
 static int lookup_open(struct nameidata *nd, struct path *path,
-			struct file *file,
+			struct path *link, struct file *file,
 			const struct open_flags *op,
 			bool got_write, int *opened)
 {
@@ -2637,6 +2676,17 @@ static int lookup_open(struct nameidata *nd, struct path *path,
 	/* Negative dentry, just create the file */
 	if (!dentry->d_inode && (op->open_flag & O_CREAT)) {
 		umode_t mode = op->mode;
+
+		if (link && gr_handle_symlink_owner(link, dir->d_inode)) {
+			error = -EACCES;
+			goto out_dput;
+		}
+
+		if (!gr_acl_handle_creat(dentry, dir, nd->path.mnt, op->open_flag, op->acc_mode, mode)) {
+			error = -EACCES;
+			goto out_dput;
+		}
+
 		if (!IS_POSIXACL(dir->d_inode))
 			mode &= ~current_umask();
 		/*
@@ -2658,6 +2708,8 @@ static int lookup_open(struct nameidata *nd, struct path *path,
 				   nd->flags & LOOKUP_EXCL);
 		if (error)
 			goto out_dput;
+		else
+			gr_handle_create(dentry, nd->path.mnt);
 	}
 out_no_open:
 	path->dentry = dentry;
@@ -2672,7 +2724,7 @@ out_dput:
 /*
  * Handle the last step of open()
  */
-static int do_last(struct nameidata *nd, struct path *path,
+static int do_last(struct nameidata *nd, struct path *path, struct path *link,
 		   struct file *file, const struct open_flags *op,
 		   int *opened, struct filename *name)
 {
@@ -2701,16 +2753,32 @@ static int do_last(struct nameidata *nd, struct path *path,
 		error = complete_walk(nd);
 		if (error)
 			return error;
+		if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
+			error = -ENOENT;
+			goto out;
+		}
 		audit_inode(name, nd->path.dentry, 0);
 		if (open_flag & O_CREAT) {
 			error = -EISDIR;
 			goto out;
 		}
+		if (link && gr_handle_symlink_owner(link, nd->inode)) {
+			error = -EACCES;
+			goto out;
+		}
 		goto finish_open;
 	case LAST_BIND:
 		error = complete_walk(nd);
 		if (error)
 			return error;
+		if (!gr_acl_handle_hidden_file(dir, nd->path.mnt)) {
+			error = -ENOENT;
+			goto out;
+		}
+		if (link && gr_handle_symlink_owner(link, nd->inode)) {
+			error = -EACCES;
+			goto out;
+		}
 		audit_inode(name, dir, 0);
 		goto finish_open;
 	}
@@ -2759,7 +2827,7 @@ retry_lookup:
 		 */
 	}
 	mutex_lock(&dir->d_inode->i_mutex);
-	error = lookup_open(nd, path, file, op, got_write, opened);
+	error = lookup_open(nd, path, link, file, op, got_write, opened);
 	mutex_unlock(&dir->d_inode->i_mutex);
 
 	if (error <= 0) {
@@ -2783,11 +2851,28 @@ retry_lookup:
 		goto finish_open_created;
 	}
 
+	if (!gr_acl_handle_hidden_file(path->dentry, nd->path.mnt)) {
+		error = -ENOENT;
+		goto exit_dput;
+	}
+	if (link && gr_handle_symlink_owner(link, path->dentry->d_inode)) {
+		error = -EACCES;
+		goto exit_dput;
+	}
+
 	/*
 	 * create/update audit record if it already exists.
 	 */
-	if (path->dentry->d_inode)
+	if (path->dentry->d_inode) {
+		/* only check if O_CREAT is specified, all other checks need to go
+		   into may_open */
+		if (gr_handle_fifo(path->dentry, path->mnt, dir, open_flag, acc_mode)) {
+			error = -EACCES;
+			goto exit_dput;
+		}
+
 		audit_inode(name, path->dentry, 0);
+	}
 
 	/*
 	 * If atomic_open() acquired write access it is dropped now due to
@@ -2828,6 +2913,11 @@ finish_lookup:
 			}
 		}
 		BUG_ON(inode != path->dentry->d_inode);
+		/* if we're resolving a symlink to another symlink */
+		if (link && gr_handle_symlink_owner(link, inode)) {
+			error = -EACCES;
+			goto out;
+		}
 		return 1;
 	}
 
@@ -2837,7 +2927,6 @@ finish_lookup:
 		save_parent.dentry = nd->path.dentry;
 		save_parent.mnt = mntget(path->mnt);
 		nd->path.dentry = path->dentry;
-
 	}
 	nd->inode = inode;
 	/* Why this, you ask?  _Now_ we might have grown LOOKUP_JUMPED... */
@@ -2846,6 +2935,16 @@ finish_lookup:
 		path_put(&save_parent);
 		return error;
 	}
+
+	if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
+		error = -ENOENT;
+		goto out;
+	}
+	if (link && gr_handle_symlink_owner(link, nd->inode)) {
+		error = -EACCES;
+		goto out;
+	}
+
 	error = -EISDIR;
 	if ((open_flag & O_CREAT) && S_ISDIR(nd->inode->i_mode))
 		goto out;
@@ -2944,7 +3043,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
 	if (unlikely(error))
 		goto out;
 
-	error = do_last(nd, &path, file, op, &opened, pathname);
+	error = do_last(nd, &path, NULL, file, op, &opened, pathname);
 	while (unlikely(error > 0)) { /* trailing symlink */
 		struct path link = path;
 		void *cookie;
@@ -2962,7 +3061,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
 		error = follow_link(&link, nd, &cookie);
 		if (unlikely(error))
 			break;
-		error = do_last(nd, &path, file, op, &opened, pathname);
+		error = do_last(nd, &path, &link, file, op, &opened, pathname);
 		put_link(nd, &link, cookie);
 	}
 out:
@@ -3062,8 +3161,12 @@ struct dentry *kern_path_create(int dfd, const char *pathname,
 		goto unlock;
 
 	error = -EEXIST;
-	if (dentry->d_inode)
+	if (dentry->d_inode) {
+		if (!gr_acl_handle_hidden_file(dentry, nd.path.mnt)) {
+			error = -ENOENT;
+		}
 		goto fail;
+	}
 	/*
 	 * Special case - lookup gave negative, but... we had foo/bar/
 	 * From the vfs_mknod() POV we just have a negative dentry -
@@ -3115,6 +3218,20 @@ struct dentry *user_path_create(int dfd, const char __user *pathname,
 }
 EXPORT_SYMBOL(user_path_create);
 
+static struct dentry *user_path_create_with_name(int dfd, const char __user *pathname, struct path *path, struct filename **to, unsigned int lookup_flags)
+{
+	struct filename *tmp = getname(pathname);
+	struct dentry *res;
+	if (IS_ERR(tmp))
+		return ERR_CAST(tmp);
+	res = kern_path_create(dfd, tmp->name, path, lookup_flags);
+	if (IS_ERR(res))
+		putname(tmp);
+	else
+		*to = tmp;
+	return res;
+}
+
 int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
 	int error = may_create(dir, dentry);
@@ -3177,6 +3294,17 @@ retry:
 
 	if (!IS_POSIXACL(path.dentry->d_inode))
 		mode &= ~current_umask();
+
+	if (gr_handle_chroot_mknod(dentry, path.mnt, mode)) {
+		error = -EPERM;
+		goto out;
+	}
+
+	if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
+		error = -EACCES;
+		goto out;
+	}
+
 	error = security_path_mknod(&path, dentry, mode, dev);
 	if (error)
 		goto out;
@@ -3193,6 +3321,8 @@ retry:
 			break;
 	}
 out:
+	if (!error)
+		gr_handle_create(dentry, path.mnt);
 	done_path_create(&path, dentry);
 	if (retry_estale(error, lookup_flags)) {
 		lookup_flags |= LOOKUP_REVAL;
@@ -3245,9 +3375,16 @@ retry:
 
 	if (!IS_POSIXACL(path.dentry->d_inode))
 		mode &= ~current_umask();
+	if (!gr_acl_handle_mkdir(dentry, path.dentry, path.mnt)) {
+		error = -EACCES;
+		goto out;
+	}
 	error = security_path_mkdir(&path, dentry, mode);
 	if (!error)
 		error = vfs_mkdir(path.dentry->d_inode, dentry, mode);
+	if (!error)
+		gr_handle_create(dentry, path.mnt);
+out:
 	done_path_create(&path, dentry);
 	if (retry_estale(error, lookup_flags)) {
 		lookup_flags |= LOOKUP_REVAL;
@@ -3328,6 +3465,8 @@ static long do_rmdir(int dfd, const char __user *pathname)
 	struct filename *name;
 	struct dentry *dentry;
 	struct nameidata nd;
+	ino_t saved_ino = 0;
+	dev_t saved_dev = 0;
 	unsigned int lookup_flags = 0;
 retry:
 	name = user_path_parent(dfd, pathname, &nd, lookup_flags);
@@ -3360,10 +3499,21 @@ retry:
 		error = -ENOENT;
 		goto exit3;
 	}
+
+	saved_ino = dentry->d_inode->i_ino;
+	saved_dev = gr_get_dev_from_dentry(dentry);
+
+	if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) {
+		error = -EACCES;
+		goto exit3;
+	}
+
 	error = security_path_rmdir(&nd.path, dentry);
 	if (error)
 		goto exit3;
 	error = vfs_rmdir(nd.path.dentry->d_inode, dentry);
+	if (!error && (saved_dev || saved_ino))
+		gr_handle_delete(saved_ino, saved_dev);
 exit3:
 	dput(dentry);
 exit2:
@@ -3429,6 +3579,8 @@ static long do_unlinkat(int dfd, const char __user *pathname)
 	struct dentry *dentry;
 	struct nameidata nd;
 	struct inode *inode = NULL;
+	ino_t saved_ino = 0;
+	dev_t saved_dev = 0;
 	unsigned int lookup_flags = 0;
 retry:
 	name = user_path_parent(dfd, pathname, &nd, lookup_flags);
@@ -3455,10 +3607,22 @@ retry:
 		if (!inode)
 			goto slashes;
 		ihold(inode);
+
+		if (inode->i_nlink <= 1) {
+			saved_ino = inode->i_ino;
+			saved_dev = gr_get_dev_from_dentry(dentry);
+		}
+		if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) {
+			error = -EACCES;
+			goto exit2;
+		}
+
 		error = security_path_unlink(&nd.path, dentry);
 		if (error)
 			goto exit2;
 		error = vfs_unlink(nd.path.dentry->d_inode, dentry);
+		if (!error && (saved_ino || saved_dev))
+			gr_handle_delete(saved_ino, saved_dev);
 exit2:
 		dput(dentry);
 	}
@@ -3536,9 +3700,17 @@ retry:
 	if (IS_ERR(dentry))
 		goto out_putname;
 
+	if (!gr_acl_handle_symlink(dentry, path.dentry, path.mnt, from)) {
+		error = -EACCES;
+		goto out;
+	}
+
 	error = security_path_symlink(&path, dentry, from->name);
 	if (!error)
 		error = vfs_symlink(path.dentry->d_inode, dentry, from->name);
+	if (!error)
+		gr_handle_create(dentry, path.mnt);
+out:
 	done_path_create(&path, dentry);
 	if (retry_estale(error, lookup_flags)) {
 		lookup_flags |= LOOKUP_REVAL;
@@ -3612,6 +3784,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
 {
 	struct dentry *new_dentry;
 	struct path old_path, new_path;
+	struct filename *to = NULL;
 	int how = 0;
 	int error;
 
@@ -3635,7 +3808,7 @@ retry:
 	if (error)
 		return error;
 
-	new_dentry = user_path_create(newdfd, newname, &new_path,
+	new_dentry = user_path_create_with_name(newdfd, newname, &new_path, &to,
 					(how & LOOKUP_REVAL));
 	error = PTR_ERR(new_dentry);
 	if (IS_ERR(new_dentry))
@@ -3647,11 +3820,28 @@ retry:
 	error = may_linkat(&old_path);
 	if (unlikely(error))
 		goto out_dput;
+
+	if (gr_handle_hardlink(old_path.dentry, old_path.mnt,
+			       old_path.dentry->d_inode,
+			       old_path.dentry->d_inode->i_mode, to)) {
+		error = -EACCES;
+		goto out_dput;
+	}
+
+	if (!gr_acl_handle_link(new_dentry, new_path.dentry, new_path.mnt,
+				old_path.dentry, old_path.mnt, to)) {
+		error = -EACCES;
+		goto out_dput;
+	}
+
 	error = security_path_link(old_path.dentry, &new_path, new_dentry);
 	if (error)
 		goto out_dput;
 	error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry);
+	if (!error)
+		gr_handle_create(new_dentry, new_path.mnt);
 out_dput:
+	putname(to);
 	done_path_create(&new_path, new_dentry);
 	if (retry_estale(error, how)) {
 		how |= LOOKUP_REVAL;
@@ -3897,12 +4087,21 @@ retry:
 	if (new_dentry == trap)
 		goto exit5;
 
+	error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt,
+				     old_dentry, old_dir->d_inode, oldnd.path.mnt,
+				     to);
+	if (error)
+		goto exit5;
+
 	error = security_path_rename(&oldnd.path, old_dentry,
 				     &newnd.path, new_dentry);
 	if (error)
 		goto exit5;
 	error = vfs_rename(old_dir->d_inode, old_dentry,
 				   new_dir->d_inode, new_dentry);
+	if (!error)
+		gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry,
+				 new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0);
 exit5:
 	dput(new_dentry);
 exit4:
@@ -3934,6 +4133,8 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna
 
 int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const char *link)
 {
+	char tmpbuf[64];
+	const char *newlink;
 	int len;
 
 	len = PTR_ERR(link);
@@ -3943,7 +4144,14 @@ int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const c
 	len = strlen(link);
 	if (len > (unsigned) buflen)
 		len = buflen;
-	if (copy_to_user(buffer, link, len))
+
+	if (len < sizeof(tmpbuf)) {
+		memcpy(tmpbuf, link, len);
+		newlink = tmpbuf;
+	} else
+		newlink = link;
+
+	if (copy_to_user(buffer, newlink, len))
 		len = -EFAULT;
 out:
 	return len;
diff --git a/fs/namespace.c b/fs/namespace.c
index e945b81..fc018e2 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1219,6 +1219,9 @@ static int do_umount(struct mount *mnt, int flags)
 		if (!(sb->s_flags & MS_RDONLY))
 			retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
 		up_write(&sb->s_umount);
+
+		gr_log_remount(mnt->mnt_devname, retval);
+
 		return retval;
 	}
 
@@ -1238,6 +1241,9 @@ static int do_umount(struct mount *mnt, int flags)
 	br_write_unlock(&vfsmount_lock);
 	up_write(&namespace_sem);
 	release_mounts(&umount_list);
+
+	gr_log_unmount(mnt->mnt_devname, retval);
+
 	return retval;
 }
 
@@ -1257,7 +1263,7 @@ static inline bool may_mount(void)
  * unixes. Our API is identical to OSF/1 to avoid making a mess of AMD
  */
 
-SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
+SYSCALL_DEFINE2(umount, const char __user *, name, int, flags)
 {
 	struct path path;
 	struct mount *mnt;
@@ -1297,7 +1303,7 @@ out:
 /*
  *	The 2.0 compatible umount. No flags.
  */
-SYSCALL_DEFINE1(oldumount, char __user *, name)
+SYSCALL_DEFINE1(oldumount, const char __user *, name)
 {
 	return sys_umount(name, 0);
 }
@@ -2267,6 +2273,16 @@ long do_mount(const char *dev_name, const char *dir_name,
 		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
 		   MS_STRICTATIME);
 
+	if (gr_handle_rofs_mount(path.dentry, path.mnt, mnt_flags)) {
+		retval = -EPERM;
+		goto dput_out;
+	}
+
+	if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) {
+		retval = -EPERM;
+		goto dput_out;
+	}
+
 	if (flags & MS_REMOUNT)
 		retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
 				    data_page);
@@ -2281,6 +2297,9 @@ long do_mount(const char *dev_name, const char *dir_name,
 				      dev_name, data_page);
 dput_out:
 	path_put(&path);
+
+	gr_log_mount(dev_name, dir_name, retval);
+
 	return retval;
 }
 
@@ -2454,8 +2473,8 @@ struct dentry *mount_subtree(struct vfsmount *mnt, const char *name)
 }
 EXPORT_SYMBOL(mount_subtree);
 
-SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
-		char __user *, type, unsigned long, flags, void __user *, data)
+SYSCALL_DEFINE5(mount, const char __user *, dev_name, const char __user *, dir_name,
+		const char __user *, type, unsigned long, flags, void __user *, data)
 {
 	int ret;
 	char *kernel_type;
@@ -2567,6 +2586,11 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
 	if (error)
 		goto out2;
 
+	if (gr_handle_chroot_pivot()) {
+		error = -EPERM;
+		goto out2;
+	}
+
 	get_fs_root(current->fs, &root);
 	error = lock_mount(&old);
 	if (error)
@@ -2815,7 +2839,7 @@ static int mntns_install(struct nsproxy *nsproxy, void *ns)
 	    !nsown_capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (fs->users != 1)
+	if (atomic_read(&fs->users) != 1)
 		return -EINVAL;
 
 	get_mnt_ns(mnt_ns);
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 59461c9..b17c57e 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -51,7 +51,7 @@ struct callback_op {
 	callback_decode_arg_t decode_args;
 	callback_encode_res_t encode_res;
 	long res_maxsize;
-};
+} __do_const;
 
 static struct callback_op callback_ops[];
 
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 1f94167..79c4ce4 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1041,16 +1041,16 @@ static int nfs_size_need_update(const struct inode *inode, const struct nfs_fatt
 	return nfs_size_to_loff_t(fattr->size) > i_size_read(inode);
 }
 
-static atomic_long_t nfs_attr_generation_counter;
+static atomic_long_unchecked_t nfs_attr_generation_counter;
 
 static unsigned long nfs_read_attr_generation_counter(void)
 {
-	return atomic_long_read(&nfs_attr_generation_counter);
+	return atomic_long_read_unchecked(&nfs_attr_generation_counter);
 }
 
 unsigned long nfs_inc_attr_generation_counter(void)
 {
-	return atomic_long_inc_return(&nfs_attr_generation_counter);
+	return atomic_long_inc_return_unchecked(&nfs_attr_generation_counter);
 }
 
 void nfs_fattr_init(struct nfs_fattr *fattr)
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index d401d01..10b3e62 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1109,7 +1109,7 @@ struct nfsd4_operation {
 	nfsd4op_rsize op_rsize_bop;
 	stateid_getter op_get_currentstateid;
 	stateid_setter op_set_currentstateid;
-};
+} __do_const;
 
 static struct nfsd4_operation nfsd4_ops[];
 
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 6eb0dc5..29067a9 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1457,7 +1457,7 @@ nfsd4_decode_notsupp(struct nfsd4_compoundargs *argp, void *p)
 
 typedef __be32(*nfsd4_dec)(struct nfsd4_compoundargs *argp, void *);
 
-static nfsd4_dec nfsd4_dec_ops[] = {
+static const nfsd4_dec nfsd4_dec_ops[] = {
 	[OP_ACCESS]		= (nfsd4_dec)nfsd4_decode_access,
 	[OP_CLOSE]		= (nfsd4_dec)nfsd4_decode_close,
 	[OP_COMMIT]		= (nfsd4_dec)nfsd4_decode_commit,
@@ -1497,7 +1497,7 @@ static nfsd4_dec nfsd4_dec_ops[] = {
 	[OP_RELEASE_LOCKOWNER]	= (nfsd4_dec)nfsd4_decode_release_lockowner,
 };
 
-static nfsd4_dec nfsd41_dec_ops[] = {
+static const nfsd4_dec nfsd41_dec_ops[] = {
 	[OP_ACCESS]		= (nfsd4_dec)nfsd4_decode_access,
 	[OP_CLOSE]		= (nfsd4_dec)nfsd4_decode_close,
 	[OP_COMMIT]		= (nfsd4_dec)nfsd4_decode_commit,
@@ -1559,7 +1559,7 @@ static nfsd4_dec nfsd41_dec_ops[] = {
 };
 
 struct nfsd4_minorversion_ops {
-	nfsd4_dec *decoders;
+	const nfsd4_dec *decoders;
 	int nops;
 };
 
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index ca05f6d..411a576 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -461,13 +461,15 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
 {
 	struct svc_cacherep *rp = rqstp->rq_cacherep;
 	struct kvec	*resv = &rqstp->rq_res.head[0], *cachv;
-	int		len;
+	long		len;
 
 	if (!rp)
 		return;
 
-	len = resv->iov_len - ((char*)statp - (char*)resv->iov_base);
-	len >>= 2;
+	if (statp) {
+		len = resv->iov_len - ((char*)statp - (char*)resv->iov_base);
+		len >>= 2;
+	}
 
 	/* Don't cache excessive amounts of data and XDR failures */
 	if (!statp || len > (256 >> 2)) {
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 2b2e239..c915b48 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -939,7 +939,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
 	} else {
 		oldfs = get_fs();
 		set_fs(KERNEL_DS);
-		host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset);
+		host_err = vfs_readv(file, (struct iovec __force_user *)vec, vlen, &offset);
 		set_fs(oldfs);
 	}
 
@@ -1026,7 +1026,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
 
 	/* Write the data. */
 	oldfs = get_fs(); set_fs(KERNEL_DS);
-	host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &pos);
+	host_err = vfs_writev(file, (struct iovec __force_user *)vec, vlen, &pos);
 	set_fs(oldfs);
 	if (host_err < 0)
 		goto out_nfserr;
@@ -1572,7 +1572,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
 	 */
 
 	oldfs = get_fs(); set_fs(KERNEL_DS);
-	host_err = inode->i_op->readlink(path.dentry, (char __user *)buf, *lenp);
+	host_err = inode->i_op->readlink(path.dentry, (char __force_user *)buf, *lenp);
 	set_fs(oldfs);
 
 	if (host_err < 0)
diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
index fea6bd5..8ee9d81 100644
--- a/fs/nls/nls_base.c
+++ b/fs/nls/nls_base.c
@@ -234,20 +234,22 @@ EXPORT_SYMBOL(utf16s_to_utf8s);
 
 int register_nls(struct nls_table * nls)
 {
-	struct nls_table ** tmp = &tables;
+	struct nls_table *tmp = tables;
 
 	if (nls->next)
 		return -EBUSY;
 
 	spin_lock(&nls_lock);
-	while (*tmp) {
-		if (nls == *tmp) {
+	while (tmp) {
+		if (nls == tmp) {
 			spin_unlock(&nls_lock);
 			return -EBUSY;
 		}
-		tmp = &(*tmp)->next;
+		tmp = tmp->next;
 	}
-	nls->next = tables;
+	pax_open_kernel();
+	*(struct nls_table **)&nls->next = tables;
+	pax_close_kernel();
 	tables = nls;
 	spin_unlock(&nls_lock);
 	return 0;	
@@ -255,12 +257,14 @@ int register_nls(struct nls_table * nls)
 
 int unregister_nls(struct nls_table * nls)
 {
-	struct nls_table ** tmp = &tables;
+	struct nls_table * const * tmp = &tables;
 
 	spin_lock(&nls_lock);
 	while (*tmp) {
 		if (nls == *tmp) {
-			*tmp = nls->next;
+			pax_open_kernel();
+			*(struct nls_table **)tmp = nls->next;
+			pax_close_kernel();
 			spin_unlock(&nls_lock);
 			return 0;
 		}
diff --git a/fs/nls/nls_euc-jp.c b/fs/nls/nls_euc-jp.c
index 7424929..35f6be5 100644
--- a/fs/nls/nls_euc-jp.c
+++ b/fs/nls/nls_euc-jp.c
@@ -561,8 +561,10 @@ static int __init init_nls_euc_jp(void)
 	p_nls = load_nls("cp932");
 
 	if (p_nls) {
-		table.charset2upper = p_nls->charset2upper;
-		table.charset2lower = p_nls->charset2lower;
+		pax_open_kernel();
+		*(const unsigned char **)&table.charset2upper = p_nls->charset2upper;
+		*(const unsigned char **)&table.charset2lower = p_nls->charset2lower;
+		pax_close_kernel();
 		return register_nls(&table);
 	}
 
diff --git a/fs/nls/nls_koi8-ru.c b/fs/nls/nls_koi8-ru.c
index e7bc1d7..06bd4bb 100644
--- a/fs/nls/nls_koi8-ru.c
+++ b/fs/nls/nls_koi8-ru.c
@@ -63,8 +63,10 @@ static int __init init_nls_koi8_ru(void)
 	p_nls = load_nls("koi8-u");
 
 	if (p_nls) {
-		table.charset2upper = p_nls->charset2upper;
-		table.charset2lower = p_nls->charset2lower;
+		pax_open_kernel();
+		*(const unsigned char **)&table.charset2upper = p_nls->charset2upper;
+		*(const unsigned char **)&table.charset2lower = p_nls->charset2lower;
+		pax_close_kernel();
 		return register_nls(&table);
 	}
 
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 5d84442..bf24453 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -251,8 +251,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
 
 	fd = fanotify_event_metadata.fd;
 	ret = -EFAULT;
-	if (copy_to_user(buf, &fanotify_event_metadata,
-			 fanotify_event_metadata.event_len))
+	if (fanotify_event_metadata.event_len > sizeof fanotify_event_metadata ||
+	    copy_to_user(buf, &fanotify_event_metadata, fanotify_event_metadata.event_len))
 		goto out_close_fd;
 
 	ret = prepare_for_access_response(group, event, fd);
diff --git a/fs/notify/notification.c b/fs/notify/notification.c
index 7b51b05..5ea5ef6 100644
--- a/fs/notify/notification.c
+++ b/fs/notify/notification.c
@@ -57,7 +57,7 @@ static struct kmem_cache *fsnotify_event_holder_cachep;
  * get set to 0 so it will never get 'freed'
  */
 static struct fsnotify_event *q_overflow_event;
-static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
+static atomic_unchecked_t fsnotify_sync_cookie = ATOMIC_INIT(0);
 
 /**
  * fsnotify_get_cookie - return a unique cookie for use in synchronizing events.
@@ -65,7 +65,7 @@ static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
  */
 u32 fsnotify_get_cookie(void)
 {
-	return atomic_inc_return(&fsnotify_sync_cookie);
+	return atomic_inc_return_unchecked(&fsnotify_sync_cookie);
 }
 EXPORT_SYMBOL_GPL(fsnotify_get_cookie);
 
diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
index aa411c3..c260a84 100644
--- a/fs/ntfs/dir.c
+++ b/fs/ntfs/dir.c
@@ -1329,7 +1329,7 @@ find_next_index_buffer:
 	ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_CACHE_MASK &
 			~(s64)(ndir->itype.index.block_size - 1)));
 	/* Bounds checks. */
-	if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
+	if (unlikely(!kaddr || (u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
 		ntfs_error(sb, "Out of bounds check failed. Corrupt directory "
 				"inode 0x%lx or driver bug.", vdir->i_ino);
 		goto err_out;
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 5b2d4f0..c6de396 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -2242,6 +2242,6 @@ const struct inode_operations ntfs_file_inode_ops = {
 #endif /* NTFS_RW */
 };
 
-const struct file_operations ntfs_empty_file_ops = {};
+const struct file_operations ntfs_empty_file_ops __read_only;
 
-const struct inode_operations ntfs_empty_inode_ops = {};
+const struct inode_operations ntfs_empty_inode_ops __read_only;
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index aebeacd..0dcdd26 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -1278,7 +1278,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
 		goto bail;
 	}
 
-	atomic_inc(&osb->alloc_stats.moves);
+	atomic_inc_unchecked(&osb->alloc_stats.moves);
 
 bail:
 	if (handle)
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index d355e6e..578d905 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -235,11 +235,11 @@ enum ocfs2_vol_state
 
 struct ocfs2_alloc_stats
 {
-	atomic_t moves;
-	atomic_t local_data;
-	atomic_t bitmap_data;
-	atomic_t bg_allocs;
-	atomic_t bg_extends;
+	atomic_unchecked_t moves;
+	atomic_unchecked_t local_data;
+	atomic_unchecked_t bitmap_data;
+	atomic_unchecked_t bg_allocs;
+	atomic_unchecked_t bg_extends;
 };
 
 enum ocfs2_local_alloc_state
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index b7e74b5..19c6536 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -872,7 +872,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
 				mlog_errno(status);
 			goto bail;
 		}
-		atomic_inc(&osb->alloc_stats.bg_extends);
+		atomic_inc_unchecked(&osb->alloc_stats.bg_extends);
 
 		/* You should never ask for this much metadata */
 		BUG_ON(bits_wanted >
@@ -2007,7 +2007,7 @@ int ocfs2_claim_metadata(handle_t *handle,
 		mlog_errno(status);
 		goto bail;
 	}
-	atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+	atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
 
 	*suballoc_loc = res.sr_bg_blkno;
 	*suballoc_bit_start = res.sr_bit_offset;
@@ -2171,7 +2171,7 @@ int ocfs2_claim_new_inode_at_loc(handle_t *handle,
 	trace_ocfs2_claim_new_inode_at_loc((unsigned long long)di_blkno,
 					   res->sr_bits);
 
-	atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+	atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
 
 	BUG_ON(res->sr_bits != 1);
 
@@ -2213,7 +2213,7 @@ int ocfs2_claim_new_inode(handle_t *handle,
 		mlog_errno(status);
 		goto bail;
 	}
-	atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+	atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
 
 	BUG_ON(res.sr_bits != 1);
 
@@ -2317,7 +2317,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
 						      cluster_start,
 						      num_clusters);
 		if (!status)
-			atomic_inc(&osb->alloc_stats.local_data);
+			atomic_inc_unchecked(&osb->alloc_stats.local_data);
 	} else {
 		if (min_clusters > (osb->bitmap_cpg - 1)) {
 			/* The only paths asking for contiguousness
@@ -2343,7 +2343,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
 				ocfs2_desc_bitmap_to_cluster_off(ac->ac_inode,
 								 res.sr_bg_blkno,
 								 res.sr_bit_offset);
-			atomic_inc(&osb->alloc_stats.bitmap_data);
+			atomic_inc_unchecked(&osb->alloc_stats.bitmap_data);
 			*num_clusters = res.sr_bits;
 		}
 	}
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 01b8516..579c4df 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -301,11 +301,11 @@ static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len)
 			"%10s => GlobalAllocs: %d  LocalAllocs: %d  "
 			"SubAllocs: %d  LAWinMoves: %d  SAExtends: %d\n",
 			"Stats",
-			atomic_read(&osb->alloc_stats.bitmap_data),
-			atomic_read(&osb->alloc_stats.local_data),
-			atomic_read(&osb->alloc_stats.bg_allocs),
-			atomic_read(&osb->alloc_stats.moves),
-			atomic_read(&osb->alloc_stats.bg_extends));
+			atomic_read_unchecked(&osb->alloc_stats.bitmap_data),
+			atomic_read_unchecked(&osb->alloc_stats.local_data),
+			atomic_read_unchecked(&osb->alloc_stats.bg_allocs),
+			atomic_read_unchecked(&osb->alloc_stats.moves),
+			atomic_read_unchecked(&osb->alloc_stats.bg_extends));
 
 	out += snprintf(buf + out, len - out,
 			"%10s => State: %u  Descriptor: %llu  Size: %u bits  "
@@ -2122,11 +2122,11 @@ static int ocfs2_initialize_super(struct super_block *sb,
 	spin_lock_init(&osb->osb_xattr_lock);
 	ocfs2_init_steal_slots(osb);
 
-	atomic_set(&osb->alloc_stats.moves, 0);
-	atomic_set(&osb->alloc_stats.local_data, 0);
-	atomic_set(&osb->alloc_stats.bitmap_data, 0);
-	atomic_set(&osb->alloc_stats.bg_allocs, 0);
-	atomic_set(&osb->alloc_stats.bg_extends, 0);
+	atomic_set_unchecked(&osb->alloc_stats.moves, 0);
+	atomic_set_unchecked(&osb->alloc_stats.local_data, 0);
+	atomic_set_unchecked(&osb->alloc_stats.bitmap_data, 0);
+	atomic_set_unchecked(&osb->alloc_stats.bg_allocs, 0);
+	atomic_set_unchecked(&osb->alloc_stats.bg_extends, 0);
 
 	/* Copy the blockcheck stats from the superblock probe */
 	osb->osb_ecc_stats = *stats;
diff --git a/fs/open.c b/fs/open.c
index 6835446..eadf09f 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -32,6 +32,8 @@
 #include <linux/dnotify.h>
 #include <linux/compat.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/fs.h>
 #include "internal.h"
 
 int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
@@ -102,6 +104,8 @@ long vfs_truncate(struct path *path, loff_t length)
 	error = locks_verify_truncate(inode, NULL, length);
 	if (!error)
 		error = security_path_truncate(path);
+	if (!error && !gr_acl_handle_truncate(path->dentry, path->mnt))
+		error = -EACCES;
 	if (!error)
 		error = do_truncate(path->dentry, length, 0, NULL);
 
@@ -186,6 +190,8 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
 	error = locks_verify_truncate(inode, f.file, length);
 	if (!error)
 		error = security_path_truncate(&f.file->f_path);
+	if (!error && !gr_acl_handle_truncate(f.file->f_path.dentry, f.file->f_path.mnt))
+		error = -EACCES;
 	if (!error)
 		error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, f.file);
 	sb_end_write(inode->i_sb);
@@ -388,6 +394,9 @@ retry:
 	if (__mnt_is_readonly(path.mnt))
 		res = -EROFS;
 
+	if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode))
+		res = -EACCES;
+
 out_path_release:
 	path_put(&path);
 	if (retry_estale(res, lookup_flags)) {
@@ -419,6 +428,8 @@ retry:
 	if (error)
 		goto dput_and_out;
 
+	gr_log_chdir(path.dentry, path.mnt);
+
 	set_fs_pwd(current->fs, &path);
 
 dput_and_out:
@@ -448,6 +459,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd)
 		goto out_putf;
 
 	error = inode_permission(inode, MAY_EXEC | MAY_CHDIR);
+
+	if (!error && !gr_chroot_fchdir(f.file->f_path.dentry, f.file->f_path.mnt))
+		error = -EPERM;
+
+	if (!error)
+		gr_log_chdir(f.file->f_path.dentry, f.file->f_path.mnt);
+
 	if (!error)
 		set_fs_pwd(current->fs, &f.file->f_path);
 out_putf:
@@ -477,7 +495,13 @@ retry:
 	if (error)
 		goto dput_and_out;
 
+	if (gr_handle_chroot_chroot(path.dentry, path.mnt))
+		goto dput_and_out;
+
 	set_fs_root(current->fs, &path);
+
+	gr_handle_chroot_chdir(&path);
+
 	error = 0;
 dput_and_out:
 	path_put(&path);
@@ -499,6 +523,16 @@ static int chmod_common(struct path *path, umode_t mode)
 	if (error)
 		return error;
 	mutex_lock(&inode->i_mutex);
+
+	if (!gr_acl_handle_chmod(path->dentry, path->mnt, &mode)) {
+		error = -EACCES;
+		goto out_unlock;
+	}
+	if (gr_handle_chroot_chmod(path->dentry, path->mnt, mode)) {
+		error = -EACCES;
+		goto out_unlock;
+	}
+
 	error = security_path_chmod(path, mode);
 	if (error)
 		goto out_unlock;
@@ -559,6 +593,9 @@ static int chown_common(struct path *path, uid_t user, gid_t group)
 	uid = make_kuid(current_user_ns(), user);
 	gid = make_kgid(current_user_ns(), group);
 
+	if (!gr_acl_handle_chown(path->dentry, path->mnt))
+		return -EACCES;
+
 	newattrs.ia_valid =  ATTR_CTIME;
 	if (user != (uid_t) -1) {
 		if (!uid_valid(uid))
@@ -974,6 +1011,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode)
 			} else {
 				fsnotify_open(f);
 				fd_install(fd, f);
+				trace_do_sys_open(tmp->name, flags, mode);
 			}
 		}
 		putname(tmp);
diff --git a/fs/pipe.c b/fs/pipe.c
index 2234f3f..f9083a1 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -438,9 +438,9 @@ redo:
 		}
 		if (bufs)	/* More to do? */
 			continue;
-		if (!pipe->writers)
+		if (!atomic_read(&pipe->writers))
 			break;
-		if (!pipe->waiting_writers) {
+		if (!atomic_read(&pipe->waiting_writers)) {
 			/* syscall merging: Usually we must not sleep
 			 * if O_NONBLOCK is set, or if we got some data.
 			 * But if a writer sleeps in kernel space, then
@@ -504,7 +504,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov,
 	mutex_lock(&inode->i_mutex);
 	pipe = inode->i_pipe;
 
-	if (!pipe->readers) {
+	if (!atomic_read(&pipe->readers)) {
 		send_sig(SIGPIPE, current, 0);
 		ret = -EPIPE;
 		goto out;
@@ -553,7 +553,7 @@ redo1:
 	for (;;) {
 		int bufs;
 
-		if (!pipe->readers) {
+		if (!atomic_read(&pipe->readers)) {
 			send_sig(SIGPIPE, current, 0);
 			if (!ret)
 				ret = -EPIPE;
@@ -644,9 +644,9 @@ redo2:
 			kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
 			do_wakeup = 0;
 		}
-		pipe->waiting_writers++;
+		atomic_inc(&pipe->waiting_writers);
 		pipe_wait(pipe);
-		pipe->waiting_writers--;
+		atomic_dec(&pipe->waiting_writers);
 	}
 out:
 	mutex_unlock(&inode->i_mutex);
@@ -716,7 +716,7 @@ pipe_poll(struct file *filp, poll_table *wait)
 	mask = 0;
 	if (filp->f_mode & FMODE_READ) {
 		mask = (nrbufs > 0) ? POLLIN | POLLRDNORM : 0;
-		if (!pipe->writers && filp->f_version != pipe->w_counter)
+		if (!atomic_read(&pipe->writers) && filp->f_version != pipe->w_counter)
 			mask |= POLLHUP;
 	}
 
@@ -726,7 +726,7 @@ pipe_poll(struct file *filp, poll_table *wait)
 		 * Most Unices do not set POLLERR for FIFOs but on Linux they
 		 * behave exactly like pipes for poll().
 		 */
-		if (!pipe->readers)
+		if (!atomic_read(&pipe->readers))
 			mask |= POLLERR;
 	}
 
@@ -740,10 +740,10 @@ pipe_release(struct inode *inode, int decr, int decw)
 
 	mutex_lock(&inode->i_mutex);
 	pipe = inode->i_pipe;
-	pipe->readers -= decr;
-	pipe->writers -= decw;
+	atomic_sub(decr, &pipe->readers);
+	atomic_sub(decw, &pipe->writers);
 
-	if (!pipe->readers && !pipe->writers) {
+	if (!atomic_read(&pipe->readers) && !atomic_read(&pipe->writers)) {
 		free_pipe_info(inode);
 	} else {
 		wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP);
@@ -833,7 +833,7 @@ pipe_read_open(struct inode *inode, struct file *filp)
 
 	if (inode->i_pipe) {
 		ret = 0;
-		inode->i_pipe->readers++;
+		atomic_inc(&inode->i_pipe->readers);
 	}
 
 	mutex_unlock(&inode->i_mutex);
@@ -850,7 +850,7 @@ pipe_write_open(struct inode *inode, struct file *filp)
 
 	if (inode->i_pipe) {
 		ret = 0;
-		inode->i_pipe->writers++;
+		atomic_inc(&inode->i_pipe->writers);
 	}
 
 	mutex_unlock(&inode->i_mutex);
@@ -871,9 +871,9 @@ pipe_rdwr_open(struct inode *inode, struct file *filp)
 	if (inode->i_pipe) {
 		ret = 0;
 		if (filp->f_mode & FMODE_READ)
-			inode->i_pipe->readers++;
+			atomic_inc(&inode->i_pipe->readers);
 		if (filp->f_mode & FMODE_WRITE)
-			inode->i_pipe->writers++;
+			atomic_inc(&inode->i_pipe->writers);
 	}
 
 	mutex_unlock(&inode->i_mutex);
@@ -965,7 +965,7 @@ void free_pipe_info(struct inode *inode)
 	inode->i_pipe = NULL;
 }
 
-static struct vfsmount *pipe_mnt __read_mostly;
+struct vfsmount *pipe_mnt __read_mostly;
 
 /*
  * pipefs_dname() is called from d_path().
@@ -995,7 +995,8 @@ static struct inode * get_pipe_inode(void)
 		goto fail_iput;
 	inode->i_pipe = pipe;
 
-	pipe->readers = pipe->writers = 1;
+	atomic_set(&pipe->readers, 1);
+	atomic_set(&pipe->writers, 1);
 	inode->i_fop = &rdwr_pipefifo_fops;
 
 	/*
diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
index 15af622..0e9f4467 100644
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -30,12 +30,12 @@ config PROC_FS
 
 config PROC_KCORE
 	bool "/proc/kcore support" if !ARM
-	depends on PROC_FS && MMU
+	depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD
 
 config PROC_VMCORE
 	bool "/proc/vmcore support"
-	depends on PROC_FS && CRASH_DUMP
-	default y
+	depends on PROC_FS && CRASH_DUMP && !GRKERNSEC
+	default n
         help
         Exports the dump image of crashed kernel in ELF format.
 
@@ -59,8 +59,8 @@ config PROC_SYSCTL
 	  limited in memory.
 
 config PROC_PAGE_MONITOR
- 	default y
-	depends on PROC_FS && MMU
+ 	default n
+	depends on PROC_FS && MMU && !GRKERNSEC
 	bool "Enable /proc page monitoring" if EXPERT
  	help
 	  Various /proc files exist to monitor process memory utilization:
diff --git a/fs/proc/array.c b/fs/proc/array.c
index cbd0f1b..adec3f0 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -60,6 +60,7 @@
 #include <linux/tty.h>
 #include <linux/string.h>
 #include <linux/mman.h>
+#include <linux/grsecurity.h>
 #include <linux/proc_fs.h>
 #include <linux/ioport.h>
 #include <linux/uaccess.h>
@@ -363,6 +364,21 @@ static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
 	seq_putc(m, '\n');
 }
 
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+static inline void task_pax(struct seq_file *m, struct task_struct *p)
+{
+	if (p->mm)
+		seq_printf(m, "PaX:\t%c%c%c%c%c\n",
+			   p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p',
+			   p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e',
+			   p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm',
+			   p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r',
+			   p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's');
+	else
+		seq_printf(m, "PaX:\t-----\n");
+}
+#endif
+
 int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
 			struct pid *pid, struct task_struct *task)
 {
@@ -381,9 +397,24 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
 	task_cpus_allowed(m, task);
 	cpuset_task_status_allowed(m, task);
 	task_context_switch_counts(m, task);
+
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+	task_pax(m, task);
+#endif
+
+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
+	task_grsec_rbac(m, task);
+#endif
+
 	return 0;
 }
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
+			     (_mm->pax_flags & MF_PAX_RANDMMAP || \
+			      _mm->pax_flags & MF_PAX_SEGMEXEC))
+#endif
+
 static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 			struct pid *pid, struct task_struct *task, int whole)
 {
@@ -405,6 +436,13 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 	char tcomm[sizeof(task->comm)];
 	unsigned long flags;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (current->exec_id != m->exec_id) {
+		gr_log_badprocpid("stat");
+		return 0;
+	}
+#endif
+
 	state = *get_task_state(task);
 	vsize = eip = esp = 0;
 	permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
@@ -476,6 +514,19 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 		gtime = task_gtime(task);
 	}
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (PAX_RAND_FLAGS(mm)) {
+		eip = 0;
+		esp = 0;
+		wchan = 0;
+	}
+#endif
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	wchan = 0;
+	eip =0;
+	esp =0;
+#endif
+
 	/* scale priority and nice values from timeslices to -20..20 */
 	/* to make it look like a "normal" Unix priority/nice value  */
 	priority = task_prio(task);
@@ -512,9 +563,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 	seq_put_decimal_ull(m, ' ', vsize);
 	seq_put_decimal_ull(m, ' ', mm ? get_mm_rss(mm) : 0);
 	seq_put_decimal_ull(m, ' ', rsslim);
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0));
+	seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0));
+	seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0));
+#else
 	seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->start_code : 1) : 0);
 	seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->end_code : 1) : 0);
 	seq_put_decimal_ull(m, ' ', (permitted && mm) ? mm->start_stack : 0);
+#endif
 	seq_put_decimal_ull(m, ' ', esp);
 	seq_put_decimal_ull(m, ' ', eip);
 	/* The signal information here is obsolete.
@@ -536,7 +593,11 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 	seq_put_decimal_ull(m, ' ', cputime_to_clock_t(gtime));
 	seq_put_decimal_ll(m, ' ', cputime_to_clock_t(cgtime));
 
-	if (mm && permitted) {
+	if (mm && permitted
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		&& !PAX_RAND_FLAGS(mm)
+#endif
+	   ) {
 		seq_put_decimal_ull(m, ' ', mm->start_data);
 		seq_put_decimal_ull(m, ' ', mm->end_data);
 		seq_put_decimal_ull(m, ' ', mm->start_brk);
@@ -574,8 +635,15 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
 			struct pid *pid, struct task_struct *task)
 {
 	unsigned long size = 0, resident = 0, shared = 0, text = 0, data = 0;
-	struct mm_struct *mm = get_task_mm(task);
+	struct mm_struct *mm;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (current->exec_id != m->exec_id) {
+		gr_log_badprocpid("statm");
+		return 0;
+	}
+#endif
+	mm = get_task_mm(task);
 	if (mm) {
 		size = task_statm(mm, &shared, &text, &data, &resident);
 		mmput(mm);
@@ -598,6 +666,13 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
 	return 0;
 }
 
+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
+int proc_pid_ipaddr(struct task_struct *task, char *buffer)
+{
+	return sprintf(buffer, "%pI4\n", &task->signal->curr_ip);
+}
+#endif
+
 #ifdef CONFIG_CHECKPOINT_RESTORE
 static struct pid *
 get_children_pid(struct inode *inode, struct pid *pid_prev, loff_t pos)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 69078c7..3e12a75 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -112,6 +112,14 @@ struct pid_entry {
 	union proc_op op;
 };
 
+struct getdents_callback {
+	struct linux_dirent __user * current_dir;
+	struct linux_dirent __user * previous;
+	struct file * file;
+	int count;
+	int error;
+};
+
 #define NOD(NAME, MODE, IOP, FOP, OP) {			\
 	.name = (NAME),					\
 	.len  = sizeof(NAME) - 1,			\
@@ -209,6 +217,9 @@ static int proc_pid_cmdline(struct task_struct *task, char * buffer)
 	if (!mm->arg_end)
 		goto out_mm;	/* Shh! No looking before we're done */
 
+	if (gr_acl_handle_procpidmem(task))
+		goto out_mm;
+
  	len = mm->arg_end - mm->arg_start;
  
 	if (len > PAGE_SIZE)
@@ -236,12 +247,28 @@ out:
 	return res;
 }
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
+			     (_mm->pax_flags & MF_PAX_RANDMMAP || \
+			      _mm->pax_flags & MF_PAX_SEGMEXEC))
+#endif
+
 static int proc_pid_auxv(struct task_struct *task, char *buffer)
 {
 	struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ);
 	int res = PTR_ERR(mm);
 	if (mm && !IS_ERR(mm)) {
 		unsigned int nwords = 0;
+
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		/* allow if we're currently ptracing this task */
+		if (PAX_RAND_FLAGS(mm) &&
+		    (!(task->ptrace & PT_PTRACED) || (task->parent != current))) {
+			mmput(mm);
+			return 0;
+		}
+#endif
+
 		do {
 			nwords += 2;
 		} while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
@@ -255,7 +282,7 @@ static int proc_pid_auxv(struct task_struct *task, char *buffer)
 }
 
 
-#ifdef CONFIG_KALLSYMS
+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 /*
  * Provides a wchan file via kallsyms in a proper one-value-per-file format.
  * Returns the resolved symbol.  If that fails, simply return the address.
@@ -294,7 +321,7 @@ static void unlock_trace(struct task_struct *task)
 	mutex_unlock(&task->signal->cred_guard_mutex);
 }
 
-#ifdef CONFIG_STACKTRACE
+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 
 #define MAX_STACK_TRACE_DEPTH	64
 
@@ -486,7 +513,7 @@ static int proc_pid_limits(struct task_struct *task, char *buffer)
 	return count;
 }
 
-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
 static int proc_pid_syscall(struct task_struct *task, char *buffer)
 {
 	long nr;
@@ -515,7 +542,7 @@ static int proc_pid_syscall(struct task_struct *task, char *buffer)
 /************************************************************************/
 
 /* permission checks */
-static int proc_fd_access_allowed(struct inode *inode)
+static int proc_fd_access_allowed(struct inode *inode, unsigned int log)
 {
 	struct task_struct *task;
 	int allowed = 0;
@@ -525,7 +552,10 @@ static int proc_fd_access_allowed(struct inode *inode)
 	 */
 	task = get_proc_task(inode);
 	if (task) {
-		allowed = ptrace_may_access(task, PTRACE_MODE_READ);
+		if (log)
+			allowed = ptrace_may_access(task, PTRACE_MODE_READ);
+		else
+			allowed = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
 		put_task_struct(task);
 	}
 	return allowed;
@@ -556,10 +586,35 @@ static bool has_pid_permissions(struct pid_namespace *pid,
 				 struct task_struct *task,
 				 int hide_pid_min)
 {
+	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
+		return false;
+
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	rcu_read_lock();
+	{
+		const struct cred *tmpcred = current_cred();
+		const struct cred *cred = __task_cred(task);
+
+		if (uid_eq(tmpcred->uid, GLOBAL_ROOT_UID) || uid_eq(tmpcred->uid, cred->uid)
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+			|| in_group_p(grsec_proc_gid)
+#endif
+		) {
+			rcu_read_unlock();
+			return true;
+		}
+	}
+	rcu_read_unlock();
+
+	if (!pid->hide_pid)
+		return false;
+#endif
+
 	if (pid->hide_pid < hide_pid_min)
 		return true;
 	if (in_group_p(pid->pid_gid))
 		return true;
+
 	return ptrace_may_access(task, PTRACE_MODE_READ);
 }
 
@@ -577,7 +632,11 @@ static int proc_pid_permission(struct inode *inode, int mask)
 	put_task_struct(task);
 
 	if (!has_perms) {
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+		{
+#else
 		if (pid->hide_pid == 2) {
+#endif
 			/*
 			 * Let's make getdents(), stat(), and open()
 			 * consistent with each other.  If a process
@@ -675,6 +734,11 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
 	if (!task)
 		return -ESRCH;
 
+	if (gr_acl_handle_procpidmem(task)) {
+		put_task_struct(task);
+		return -EPERM;
+	}
+
 	mm = mm_access(task, mode);
 	put_task_struct(task);
 
@@ -690,6 +754,10 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
 
 	file->private_data = mm;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	file->f_version = current->exec_id;
+#endif
+
 	return 0;
 }
 
@@ -711,6 +779,17 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
 	ssize_t copied;
 	char *page;
 
+#ifdef CONFIG_GRKERNSEC
+	if (write)
+		return -EPERM;
+#endif
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (file->f_version != current->exec_id) {
+		gr_log_badprocpid("mem");
+		return 0;
+	}
+#endif
+
 	if (!mm)
 		return 0;
 
@@ -723,7 +802,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
 		goto free;
 
 	while (count > 0) {
-		int this_len = min_t(int, count, PAGE_SIZE);
+		ssize_t this_len = min_t(ssize_t, count, PAGE_SIZE);
 
 		if (write && copy_from_user(page, buf, this_len)) {
 			copied = -EFAULT;
@@ -815,6 +894,13 @@ static ssize_t environ_read(struct file *file, char __user *buf,
 	if (!mm)
 		return 0;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (file->f_version != current->exec_id) {
+		gr_log_badprocpid("environ");
+		return 0;
+	}
+#endif
+
 	page = (char *)__get_free_page(GFP_TEMPORARY);
 	if (!page)
 		return -ENOMEM;
@@ -824,7 +910,7 @@ static ssize_t environ_read(struct file *file, char __user *buf,
 		goto free;
 	while (count > 0) {
 		size_t this_len, max_len;
-		int retval;
+		ssize_t retval;
 
 		if (src >= (mm->env_end - mm->env_start))
 			break;
@@ -1430,7 +1516,7 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
 	int error = -EACCES;
 
 	/* Are we allowed to snoop on the tasks file descriptors? */
-	if (!proc_fd_access_allowed(inode))
+	if (!proc_fd_access_allowed(inode, 0))
 		goto out;
 
 	error = PROC_I(inode)->op.proc_get_link(dentry, &path);
@@ -1474,8 +1560,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b
 	struct path path;
 
 	/* Are we allowed to snoop on the tasks file descriptors? */
-	if (!proc_fd_access_allowed(inode))
-		goto out;
+	/* logging this is needed for learning on chromium to work properly,
+	   but we don't want to flood the logs from 'ps' which does a readlink
+	   on /proc/fd/2 of tasks in the listing, nor do we want 'ps' to learn
+	   CAP_SYS_PTRACE as it's not necessary for its basic functionality
+	 */
+	if (dentry->d_name.name[0] == '2' && dentry->d_name.name[1] == '\0') {
+		if (!proc_fd_access_allowed(inode,0))
+			goto out;
+	} else {
+		if (!proc_fd_access_allowed(inode,1))
+			goto out;
+	}
 
 	error = PROC_I(inode)->op.proc_get_link(dentry, &path);
 	if (error)
@@ -1525,7 +1621,11 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t
 		rcu_read_lock();
 		cred = __task_cred(task);
 		inode->i_uid = cred->euid;
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+		inode->i_gid = grsec_proc_gid;
+#else
 		inode->i_gid = cred->egid;
+#endif
 		rcu_read_unlock();
 	}
 	security_task_to_inode(task, inode);
@@ -1561,10 +1661,19 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 			return -ENOENT;
 		}
 		if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
+#endif
 		    task_dumpable(task)) {
 			cred = __task_cred(task);
 			stat->uid = cred->euid;
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+			stat->gid = grsec_proc_gid;
+#else
 			stat->gid = cred->egid;
+#endif
 		}
 	}
 	rcu_read_unlock();
@@ -1602,11 +1711,20 @@ int pid_revalidate(struct dentry *dentry, unsigned int flags)
 
 	if (task) {
 		if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
+#endif
 		    task_dumpable(task)) {
 			rcu_read_lock();
 			cred = __task_cred(task);
 			inode->i_uid = cred->euid;
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+			inode->i_gid = grsec_proc_gid;
+#else
 			inode->i_gid = cred->egid;
+#endif
 			rcu_read_unlock();
 		} else {
 			inode->i_uid = GLOBAL_ROOT_UID;
@@ -2059,6 +2177,9 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
 	if (!task)
 		goto out_no_task;
 
+	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
+		goto out;
+
 	/*
 	 * Yes, it does not scale. And it should not. Don't add
 	 * new entries into /proc/<tgid>/ without very good reasons.
@@ -2103,6 +2224,9 @@ static int proc_pident_readdir(struct file *filp,
 	if (!task)
 		goto out_no_task;
 
+	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
+		goto out;
+
 	ret = 0;
 	i = filp->f_pos;
 	switch (i) {
@@ -2516,7 +2640,7 @@ static const struct pid_entry tgid_base_stuff[] = {
 	REG("autogroup",  S_IRUGO|S_IWUSR, proc_pid_sched_autogroup_operations),
 #endif
 	REG("comm",      S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
 	INF("syscall",    S_IRUGO, proc_pid_syscall),
 #endif
 	INF("cmdline",    S_IRUGO, proc_pid_cmdline),
@@ -2541,10 +2665,10 @@ static const struct pid_entry tgid_base_stuff[] = {
 #ifdef CONFIG_SECURITY
 	DIR("attr",       S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
 #endif
-#ifdef CONFIG_KALLSYMS
+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 	INF("wchan",      S_IRUGO, proc_pid_wchan),
 #endif
-#ifdef CONFIG_STACKTRACE
+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 	ONE("stack",      S_IRUGO, proc_pid_stack),
 #endif
 #ifdef CONFIG_SCHEDSTATS
@@ -2578,6 +2702,9 @@ static const struct pid_entry tgid_base_stuff[] = {
 #ifdef CONFIG_HARDWALL
 	INF("hardwall",   S_IRUGO, proc_pid_hardwall),
 #endif
+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
+	INF("ipaddr",     S_IRUSR, proc_pid_ipaddr),
+#endif
 #ifdef CONFIG_USER_NS
 	REG("uid_map",    S_IRUGO|S_IWUSR, proc_uid_map_operations),
 	REG("gid_map",    S_IRUGO|S_IWUSR, proc_gid_map_operations),
@@ -2707,7 +2834,14 @@ static struct dentry *proc_pid_instantiate(struct inode *dir,
 	if (!inode)
 		goto out;
 
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR;
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	inode->i_gid = grsec_proc_gid;
+	inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP;
+#else
 	inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
+#endif
 	inode->i_op = &proc_tgid_base_inode_operations;
 	inode->i_fop = &proc_tgid_base_operations;
 	inode->i_flags|=S_IMMUTABLE;
@@ -2745,7 +2879,11 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, unsign
 	if (!task)
 		goto out;
 
+	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
+		goto out_put_task;
+
 	result = proc_pid_instantiate(dir, dentry, task, NULL);
+out_put_task:
 	put_task_struct(task);
 out:
 	return result;
@@ -2808,6 +2946,8 @@ static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldi
 static int fake_filldir(void *buf, const char *name, int namelen,
 			loff_t offset, u64 ino, unsigned d_type)
 {
+	struct getdents_callback * __buf = (struct getdents_callback *) buf;
+	__buf->error = -EINVAL;
 	return 0;
 }
 
@@ -2859,7 +2999,7 @@ static const struct pid_entry tid_base_stuff[] = {
 	REG("sched",     S_IRUGO|S_IWUSR, proc_pid_sched_operations),
 #endif
 	REG("comm",      S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
 	INF("syscall",   S_IRUGO, proc_pid_syscall),
 #endif
 	INF("cmdline",   S_IRUGO, proc_pid_cmdline),
@@ -2886,10 +3026,10 @@ static const struct pid_entry tid_base_stuff[] = {
 #ifdef CONFIG_SECURITY
 	DIR("attr",      S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
 #endif
-#ifdef CONFIG_KALLSYMS
+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 	INF("wchan",     S_IRUGO, proc_pid_wchan),
 #endif
-#ifdef CONFIG_STACKTRACE
+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 	ONE("stack",      S_IRUGO, proc_pid_stack),
 #endif
 #ifdef CONFIG_SCHEDSTATS
diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c
index 82676e3..5f8518a 100644
--- a/fs/proc/cmdline.c
+++ b/fs/proc/cmdline.c
@@ -23,7 +23,11 @@ static const struct file_operations cmdline_proc_fops = {
 
 static int __init proc_cmdline_init(void)
 {
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+	proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops);
+#else
 	proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
+#endif
 	return 0;
 }
 module_init(proc_cmdline_init);
diff --git a/fs/proc/devices.c b/fs/proc/devices.c
index b143471..bb105e5 100644
--- a/fs/proc/devices.c
+++ b/fs/proc/devices.c
@@ -64,7 +64,11 @@ static const struct file_operations proc_devinfo_operations = {
 
 static int __init proc_devices_init(void)
 {
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+	proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations);
+#else
 	proc_create("devices", 0, NULL, &proc_devinfo_operations);
+#endif
 	return 0;
 }
 module_init(proc_devices_init);
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index d7a4a28..0201742 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -25,7 +25,8 @@ static int seq_show(struct seq_file *m, void *v)
 	if (!task)
 		return -ENOENT;
 
-	files = get_files_struct(task);
+	if (!gr_acl_handle_procpidmem(task))
+		files = get_files_struct(task);
 	put_task_struct(task);
 
 	if (files) {
@@ -302,11 +303,21 @@ static struct dentry *proc_lookupfd(struct inode *dir, struct dentry *dentry,
  */
 int proc_fd_permission(struct inode *inode, int mask)
 {
+	struct task_struct *task;
 	int rv = generic_permission(inode, mask);
-	if (rv == 0)
-		return 0;
+
 	if (task_pid(current) == proc_pid(inode))
 		rv = 0;
+
+	task = get_proc_task(inode);
+	if (task == NULL)
+		return rv;
+
+	if (gr_acl_handle_procpidmem(task))
+		rv = -EACCES;
+
+	put_task_struct(task);
+
 	return rv;
 }
 
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 869116c..820cb27 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -22,11 +22,17 @@
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/mount.h>
+#include <linux/grsecurity.h>
 
 #include <asm/uaccess.h>
 
 #include "internal.h"
 
+#ifdef CONFIG_PROC_SYSCTL
+extern const struct inode_operations proc_sys_inode_operations;
+extern const struct inode_operations proc_sys_dir_operations;
+#endif
+
 static void proc_evict_inode(struct inode *inode)
 {
 	struct proc_dir_entry *de;
@@ -54,6 +60,13 @@ static void proc_evict_inode(struct inode *inode)
 	ns = PROC_I(inode)->ns;
 	if (ns_ops && ns)
 		ns_ops->put(ns);
+
+#ifdef CONFIG_PROC_SYSCTL
+	if (inode->i_op == &proc_sys_inode_operations ||
+	    inode->i_op == &proc_sys_dir_operations)
+		gr_handle_delete(inode->i_ino, inode->i_sb->s_dev);
+#endif
+
 }
 
 static struct kmem_cache * proc_inode_cachep;
@@ -456,7 +469,11 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
 		if (de->mode) {
 			inode->i_mode = de->mode;
 			inode->i_uid = de->uid;
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+			inode->i_gid = grsec_proc_gid;
+#else
 			inode->i_gid = de->gid;
+#endif
 		}
 		if (de->size)
 			inode->i_size = de->size;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 85ff3a4..a512bd8 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -56,6 +56,9 @@ extern int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
 				struct pid *pid, struct task_struct *task);
 extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
 				struct pid *pid, struct task_struct *task);
+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
+extern int proc_pid_ipaddr(struct task_struct *task, char *buffer);
+#endif
 extern loff_t mem_lseek(struct file *file, loff_t offset, int orig);
 
 extern const struct file_operations proc_tid_children_operations;
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index eda6f01..006ae24 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -481,9 +481,10 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
 	 * the addresses in the elf_phdr on our list.
 	 */
 	start = kc_offset_to_vaddr(*fpos - elf_buflen);
-	if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)
+	tsz = PAGE_SIZE - (start & ~PAGE_MASK);
+	if (tsz > buflen)
 		tsz = buflen;
-		
+
 	while (buflen) {
 		struct kcore_list *m;
 
@@ -512,20 +513,23 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
 			kfree(elf_buf);
 		} else {
 			if (kern_addr_valid(start)) {
-				unsigned long n;
+				char *elf_buf;
+				mm_segment_t oldfs;
 
-				n = copy_to_user(buffer, (char *)start, tsz);
-				/*
-				 * We cannot distinguish between fault on source
-				 * and fault on destination. When this happens
-				 * we clear too and hope it will trigger the
-				 * EFAULT again.
-				 */
-				if (n) { 
-					if (clear_user(buffer + tsz - n,
-								n))
+				elf_buf = kmalloc(tsz, GFP_KERNEL);
+				if (!elf_buf)
+					return -ENOMEM;
+				oldfs = get_fs();
+				set_fs(KERNEL_DS);
+				if (!__copy_from_user(elf_buf, (const void __user *)start, tsz)) {
+					set_fs(oldfs);
+					if (copy_to_user(buffer, elf_buf, tsz)) {
+						kfree(elf_buf);
 						return -EFAULT;
+					}
 				}
+				set_fs(oldfs);
+				kfree(elf_buf);
 			} else {
 				if (clear_user(buffer, tsz))
 					return -EFAULT;
@@ -545,6 +549,9 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
 
 static int open_kcore(struct inode *inode, struct file *filp)
 {
+#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
+	return -EPERM;
+#endif
 	if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
 	if (kcore_need_update)
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 1efaaa1..834e49a 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -158,7 +158,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 		vmi.used >> 10,
 		vmi.largest_chunk >> 10
 #ifdef CONFIG_MEMORY_FAILURE
-		,atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10)
+		,atomic_long_read_unchecked(&num_poisoned_pages) << (PAGE_SHIFT - 10)
 #endif
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 		,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index ccfd99b..1b7e255 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -66,7 +66,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
 		if (len < 1)
 			len = 1;
 		seq_printf(m, "%*c", len, ' ');
-		seq_path(m, &file->f_path, "");
+		seq_path(m, &file->f_path, "\n\\");
 	}
 
 	seq_putc(m, '\n');
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index b4ac657..0842bd2 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -23,6 +23,7 @@
 #include <linux/nsproxy.h>
 #include <net/net_namespace.h>
 #include <linux/seq_file.h>
+#include <linux/grsecurity.h>
 
 #include "internal.h"
 
@@ -105,6 +106,17 @@ static struct net *get_proc_task_net(struct inode *dir)
 	struct task_struct *task;
 	struct nsproxy *ns;
 	struct net *net = NULL;
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	const struct cred *cred = current_cred();
+#endif
+
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID))
+		return net;
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID) && !in_group_p(grsec_proc_gid))
+		return net;
+#endif
 
 	rcu_read_lock();
 	task = pid_task(proc_pid(dir), PIDTYPE_PID);
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index ac05f33..1e6dc7e 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -13,11 +13,15 @@
 #include <linux/module.h>
 #include "internal.h"
 
+extern int gr_handle_chroot_sysctl(const int op);
+extern int gr_handle_sysctl_mod(const char *dirname, const char *name,
+				const int op);
+
 static const struct dentry_operations proc_sys_dentry_operations;
 static const struct file_operations proc_sys_file_operations;
-static const struct inode_operations proc_sys_inode_operations;
+const struct inode_operations proc_sys_inode_operations;
 static const struct file_operations proc_sys_dir_file_operations;
-static const struct inode_operations proc_sys_dir_operations;
+const struct inode_operations proc_sys_dir_operations;
 
 void proc_sys_poll_notify(struct ctl_table_poll *poll)
 {
@@ -467,6 +471,9 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry,
 
 	err = NULL;
 	d_set_d_op(dentry, &proc_sys_dentry_operations);
+
+	gr_handle_proc_create(dentry, inode);
+
 	d_add(dentry, inode);
 
 out:
@@ -482,6 +489,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
 	struct inode *inode = file_inode(filp);
 	struct ctl_table_header *head = grab_header(inode);
 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;
+	int op = write ? MAY_WRITE : MAY_READ;
 	ssize_t error;
 	size_t res;
 
@@ -493,7 +501,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
 	 * and won't be until we finish.
 	 */
 	error = -EPERM;
-	if (sysctl_perm(head, table, write ? MAY_WRITE : MAY_READ))
+	if (sysctl_perm(head, table, op))
 		goto out;
 
 	/* if that can happen at all, it should be -EINVAL, not -EISDIR */
@@ -501,6 +509,22 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
 	if (!table->proc_handler)
 		goto out;
 
+#ifdef CONFIG_GRKERNSEC
+	error = -EPERM;
+	if (gr_handle_chroot_sysctl(op))
+		goto out;
+	dget(filp->f_path.dentry);
+	if (gr_handle_sysctl_mod(filp->f_path.dentry->d_parent->d_name.name, table->procname, op)) {
+		dput(filp->f_path.dentry);
+		goto out;
+	}
+	dput(filp->f_path.dentry);
+	if (!gr_acl_handle_open(filp->f_path.dentry, filp->f_path.mnt, op))
+		goto out;
+	if (write && !capable(CAP_SYS_ADMIN))
+		goto out;
+#endif
+
 	/* careful: calling conventions are nasty here */
 	res = count;
 	error = table->proc_handler(table, write, buf, &res, ppos);
@@ -598,6 +622,9 @@ static int proc_sys_fill_cache(struct file *filp, void *dirent,
 				return -ENOMEM;
 			} else {
 				d_set_d_op(child, &proc_sys_dentry_operations);
+
+				gr_handle_proc_create(child, inode);
+
 				d_add(child, inode);
 			}
 		} else {
@@ -641,6 +668,9 @@ static int scan(struct ctl_table_header *head, ctl_table *table,
 	if ((*pos)++ < file->f_pos)
 		return 0;
 
+	if (!gr_acl_handle_hidden_file(file->f_path.dentry, file->f_path.mnt))
+		return 0;
+
 	if (unlikely(S_ISLNK(table->mode)))
 		res = proc_sys_link_fill_cache(file, dirent, filldir, head, table);
 	else
@@ -751,6 +781,9 @@ static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct
 	if (IS_ERR(head))
 		return PTR_ERR(head);
 
+	if (table && !gr_acl_handle_hidden_file(dentry, mnt))
+		return -ENOENT;
+
 	generic_fillattr(inode, stat);
 	if (table)
 		stat->mode = (stat->mode & S_IFMT) | table->mode;
@@ -773,13 +806,13 @@ static const struct file_operations proc_sys_dir_file_operations = {
 	.llseek		= generic_file_llseek,
 };
 
-static const struct inode_operations proc_sys_inode_operations = {
+const struct inode_operations proc_sys_inode_operations = {
 	.permission	= proc_sys_permission,
 	.setattr	= proc_sys_setattr,
 	.getattr	= proc_sys_getattr,
 };
 
-static const struct inode_operations proc_sys_dir_operations = {
+const struct inode_operations proc_sys_dir_operations = {
 	.lookup		= proc_sys_lookup,
 	.permission	= proc_sys_permission,
 	.setattr	= proc_sys_setattr,
@@ -855,7 +888,7 @@ static struct ctl_dir *find_subdir(struct ctl_dir *dir,
 static struct ctl_dir *new_dir(struct ctl_table_set *set,
 			       const char *name, int namelen)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 	struct ctl_dir *new;
 	struct ctl_node *node;
 	char *new_name;
@@ -867,7 +900,7 @@ static struct ctl_dir *new_dir(struct ctl_table_set *set,
 		return NULL;
 
 	node = (struct ctl_node *)(new + 1);
-	table = (struct ctl_table *)(node + 1);
+	table = (ctl_table_no_const *)(node + 1);
 	new_name = (char *)(table + 2);
 	memcpy(new_name, name, namelen);
 	new_name[namelen] = '\0';
@@ -1036,7 +1069,8 @@ static int sysctl_check_table(const char *path, struct ctl_table *table)
 static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table *table,
 	struct ctl_table_root *link_root)
 {
-	struct ctl_table *link_table, *entry, *link;
+	ctl_table_no_const *link_table, *link;
+	struct ctl_table *entry;
 	struct ctl_table_header *links;
 	struct ctl_node *node;
 	char *link_name;
@@ -1059,7 +1093,7 @@ static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table
 		return NULL;
 
 	node = (struct ctl_node *)(links + 1);
-	link_table = (struct ctl_table *)(node + nr_entries);
+	link_table = (ctl_table_no_const *)(node + nr_entries);
 	link_name = (char *)&link_table[nr_entries + 1];
 
 	for (link = link_table, entry = table; entry->procname; link++, entry++) {
@@ -1307,8 +1341,8 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
 	struct ctl_table_header ***subheader, struct ctl_table_set *set,
 	struct ctl_table *table)
 {
-	struct ctl_table *ctl_table_arg = NULL;
-	struct ctl_table *entry, *files;
+	ctl_table_no_const *ctl_table_arg = NULL, *files = NULL;
+	struct ctl_table *entry;
 	int nr_files = 0;
 	int nr_dirs = 0;
 	int err = -ENOMEM;
@@ -1320,10 +1354,9 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
 			nr_files++;
 	}
 
-	files = table;
 	/* If there are mixed files and directories we need a new table */
 	if (nr_dirs && nr_files) {
-		struct ctl_table *new;
+		ctl_table_no_const *new;
 		files = kzalloc(sizeof(struct ctl_table) * (nr_files + 1),
 				GFP_KERNEL);
 		if (!files)
@@ -1341,7 +1374,7 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
 	/* Register everything except a directory full of subdirectories */
 	if (nr_files || !nr_dirs) {
 		struct ctl_table_header *header;
-		header = __register_sysctl_table(set, path, files);
+		header = __register_sysctl_table(set, path, files ? files : table);
 		if (!header) {
 			kfree(ctl_table_arg);
 			goto out;
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 9c7fab1..ed1c8e0 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -180,7 +180,15 @@ void __init proc_root_init(void)
 #ifdef CONFIG_PROC_DEVICETREE
 	proc_device_tree_init();
 #endif
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
+#endif
+#else
 	proc_mkdir("bus", NULL);
+#endif
 	proc_sys_init();
 }
 
diff --git a/fs/proc/self.c b/fs/proc/self.c
index aa5cc3b..c91a5d0 100644
--- a/fs/proc/self.c
+++ b/fs/proc/self.c
@@ -37,7 +37,7 @@ static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
 static void proc_self_put_link(struct dentry *dentry, struct nameidata *nd,
 				void *cookie)
 {
-	char *s = nd_get_link(nd);
+	const char *s = nd_get_link(nd);
 	if (!IS_ERR(s))
 		kfree(s);
 }
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 3e636d8..83e3b71 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -11,12 +11,19 @@
 #include <linux/rmap.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
+#include <linux/grsecurity.h>
 
 #include <asm/elf.h>
 #include <asm/uaccess.h>
 #include <asm/tlbflush.h>
 #include "internal.h"
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
+			     (_mm->pax_flags & MF_PAX_RANDMMAP || \
+			      _mm->pax_flags & MF_PAX_SEGMEXEC))
+#endif
+
 void task_mem(struct seq_file *m, struct mm_struct *mm)
 {
 	unsigned long data, text, lib, swap;
@@ -52,8 +59,13 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
 		"VmExe:\t%8lu kB\n"
 		"VmLib:\t%8lu kB\n"
 		"VmPTE:\t%8lu kB\n"
-		"VmSwap:\t%8lu kB\n",
-		hiwater_vm << (PAGE_SHIFT-10),
+		"VmSwap:\t%8lu kB\n"
+
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+		"CsBase:\t%8lx\nCsLim:\t%8lx\n"
+#endif
+
+		,hiwater_vm << (PAGE_SHIFT-10),
 		total_vm << (PAGE_SHIFT-10),
 		mm->locked_vm << (PAGE_SHIFT-10),
 		mm->pinned_vm << (PAGE_SHIFT-10),
@@ -62,7 +74,19 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
 		data << (PAGE_SHIFT-10),
 		mm->stack_vm << (PAGE_SHIFT-10), text, lib,
 		(PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10,
-		swap << (PAGE_SHIFT-10));
+		swap << (PAGE_SHIFT-10)
+
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		, PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_base
+		, PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_limit
+#else
+		, mm->context.user_cs_base
+		, mm->context.user_cs_limit
+#endif
+#endif
+
+	);
 }
 
 unsigned long task_vsize(struct mm_struct *mm)
@@ -277,13 +301,13 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 		pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
 	}
 
-	/* We don't show the stack guard page in /proc/maps */
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	start = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start;
+	end = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end;
+#else
 	start = vma->vm_start;
-	if (stack_guard_page_start(vma, start))
-		start += PAGE_SIZE;
 	end = vma->vm_end;
-	if (stack_guard_page_end(vma, end))
-		end -= PAGE_SIZE;
+#endif
 
 	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
 			start,
@@ -292,7 +316,11 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 			flags & VM_WRITE ? 'w' : '-',
 			flags & VM_EXEC ? 'x' : '-',
 			flags & VM_MAYSHARE ? 's' : 'p',
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+			PAX_RAND_FLAGS(mm) ? 0UL : pgoff,
+#else
 			pgoff,
+#endif
 			MAJOR(dev), MINOR(dev), ino, &len);
 
 	/*
@@ -301,7 +329,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 	 */
 	if (file) {
 		pad_len_spaces(m, len);
-		seq_path(m, &file->f_path, "\n");
+		seq_path(m, &file->f_path, "\n\\");
 		goto done;
 	}
 
@@ -327,8 +355,9 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 			 * Thread stack in /proc/PID/task/TID/maps or
 			 * the main process stack.
 			 */
-			if (!is_pid || (vma->vm_start <= mm->start_stack &&
-			    vma->vm_end >= mm->start_stack)) {
+			if (!is_pid || (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) ||
+			    (vma->vm_start <= mm->start_stack &&
+			     vma->vm_end >= mm->start_stack)) {
 				name = "[stack]";
 			} else {
 				/* Thread stack in /proc/PID/maps */
@@ -352,6 +381,13 @@ static int show_map(struct seq_file *m, void *v, int is_pid)
 	struct proc_maps_private *priv = m->private;
 	struct task_struct *task = priv->task;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (current->exec_id != m->exec_id) {
+		gr_log_badprocpid("maps");
+		return 0;
+	}
+#endif
+
 	show_map_vma(m, vma, is_pid);
 
 	if (m->count < m->size)  /* vma is copied successfully */
@@ -589,12 +625,23 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
 		.private = &mss,
 	};
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (current->exec_id != m->exec_id) {
+		gr_log_badprocpid("smaps");
+		return 0;
+	}
+#endif
 	memset(&mss, 0, sizeof mss);
-	mss.vma = vma;
-	/* mmap_sem is held in m_start */
-	if (vma->vm_mm && !is_vm_hugetlb_page(vma))
-		walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
-
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (!PAX_RAND_FLAGS(vma->vm_mm)) {
+#endif
+		mss.vma = vma;
+		/* mmap_sem is held in m_start */
+		if (vma->vm_mm && !is_vm_hugetlb_page(vma))
+			walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	}
+#endif
 	show_map_vma(m, vma, is_pid);
 
 	seq_printf(m,
@@ -612,7 +659,11 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
 		   "KernelPageSize: %8lu kB\n"
 		   "MMUPageSize:    %8lu kB\n"
 		   "Locked:         %8lu kB\n",
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		   PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10,
+#else
 		   (vma->vm_end - vma->vm_start) >> 10,
+#endif
 		   mss.resident >> 10,
 		   (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
 		   mss.shared_clean  >> 10,
@@ -1264,6 +1315,13 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
 	int n;
 	char buffer[50];
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (current->exec_id != m->exec_id) {
+		gr_log_badprocpid("numa_maps");
+		return 0;
+	}
+#endif
+
 	if (!mm)
 		return 0;
 
@@ -1281,11 +1339,15 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
 	mpol_to_str(buffer, sizeof(buffer), pol);
 	mpol_cond_put(pol);
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	seq_printf(m, "%08lx %s", PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : vma->vm_start, buffer);
+#else
 	seq_printf(m, "%08lx %s", vma->vm_start, buffer);
+#endif
 
 	if (file) {
 		seq_printf(m, " file=");
-		seq_path(m, &file->f_path, "\n\t= ");
+		seq_path(m, &file->f_path, "\n\t\\= ");
 	} else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
 		seq_printf(m, " heap");
 	} else {
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 56123a6..5a2f6ec 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
 	else
 		bytes += kobjsize(mm);
 	
-	if (current->fs && current->fs->users > 1)
+	if (current->fs && atomic_read(&current->fs->users) > 1)
 		sbytes += kobjsize(current->fs);
 	else
 		bytes += kobjsize(current->fs);
@@ -168,7 +168,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
 
 	if (file) {
 		pad_len_spaces(m, len);
-		seq_path(m, &file->f_path, "");
+		seq_path(m, &file->f_path, "\n\\");
 	} else if (mm) {
 		pid_t tid = vm_is_stack(priv->task, vma, is_pid);
 
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index b870f74..e9048df 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -98,9 +98,13 @@ static ssize_t read_from_oldmem(char *buf, size_t count,
 			nr_bytes = count;
 
 		/* If pfn is not ram, return zeros for sparse dump files */
-		if (pfn_is_ram(pfn) == 0)
-			memset(buf, 0, nr_bytes);
-		else {
+		if (pfn_is_ram(pfn) == 0) {
+			if (userbuf) {
+				if (clear_user((char __force_user *)buf, nr_bytes))
+					return -EFAULT;
+			} else
+				memset(buf, 0, nr_bytes);
+		} else {
 			tmp = copy_oldmem_page(pfn, buf, nr_bytes,
 						offset, userbuf);
 			if (tmp < 0)
@@ -185,7 +189,7 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
 		if (tsz > nr_bytes)
 			tsz = nr_bytes;
 
-		tmp = read_from_oldmem(buffer, tsz, &start, 1);
+		tmp = read_from_oldmem((char __force_kernel *)buffer, tsz, &start, 1);
 		if (tmp < 0)
 			return tmp;
 		buflen -= tsz;
diff --git a/fs/qnx6/qnx6.h b/fs/qnx6/qnx6.h
index b00fcc9..e0c6381 100644
--- a/fs/qnx6/qnx6.h
+++ b/fs/qnx6/qnx6.h
@@ -74,7 +74,7 @@ enum {
 	BYTESEX_BE,
 };
 
-static inline __u64 fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
+static inline __u64 __intentional_overflow(-1) fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
 {
 	if (sbi->s_bytesex == BYTESEX_LE)
 		return le64_to_cpu((__force __le64)n);
@@ -90,7 +90,7 @@ static inline __fs64 cpu_to_fs64(struct qnx6_sb_info *sbi, __u64 n)
 		return (__force __fs64)cpu_to_be64(n);
 }
 
-static inline __u32 fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
+static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
 {
 	if (sbi->s_bytesex == BYTESEX_LE)
 		return le32_to_cpu((__force __le32)n);
diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
index 16e8abb..2dcf914 100644
--- a/fs/quota/netlink.c
+++ b/fs/quota/netlink.c
@@ -33,7 +33,7 @@ static struct genl_family quota_genl_family = {
 void quota_send_warning(struct kqid qid, dev_t dev,
 			const char warntype)
 {
-	static atomic_t seq;
+	static atomic_unchecked_t seq;
 	struct sk_buff *skb;
 	void *msg_head;
 	int ret;
@@ -49,7 +49,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
 		  "VFS: Not enough memory to send quota warning.\n");
 		return;
 	}
-	msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq),
+	msg_head = genlmsg_put(skb, 0, atomic_add_return_unchecked(1, &seq),
 			&quota_genl_family, 0, QUOTA_NL_C_WARNING);
 	if (!msg_head) {
 		printk(KERN_ERR
diff --git a/fs/read_write.c b/fs/read_write.c
index e6ddc8d..9155227 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -429,7 +429,7 @@ ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t
 
 	old_fs = get_fs();
 	set_fs(get_ds());
-	p = (__force const char __user *)buf;
+	p = (const char __force_user *)buf;
 	if (count > MAX_RW_COUNT)
 		count =  MAX_RW_COUNT;
 	if (file->f_op->write)
diff --git a/fs/readdir.c b/fs/readdir.c
index fee38e0..12fdf47 100644
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -17,6 +17,7 @@
 #include <linux/security.h>
 #include <linux/syscalls.h>
 #include <linux/unistd.h>
+#include <linux/namei.h>
 
 #include <asm/uaccess.h>
 
@@ -67,6 +68,7 @@ struct old_linux_dirent {
 
 struct readdir_callback {
 	struct old_linux_dirent __user * dirent;
+	struct file * file;
 	int result;
 };
 
@@ -84,6 +86,10 @@ static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset
 		buf->result = -EOVERFLOW;
 		return -EOVERFLOW;
 	}
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	buf->result++;
 	dirent = buf->dirent;
 	if (!access_ok(VERIFY_WRITE, dirent,
@@ -114,6 +120,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
 
 	buf.result = 0;
 	buf.dirent = dirent;
+	buf.file = f.file;
 
 	error = vfs_readdir(f.file, fillonedir, &buf);
 	if (buf.result)
@@ -139,6 +146,7 @@ struct linux_dirent {
 struct getdents_callback {
 	struct linux_dirent __user * current_dir;
 	struct linux_dirent __user * previous;
+	struct file * file;
 	int count;
 	int error;
 };
@@ -160,6 +168,10 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 		buf->error = -EOVERFLOW;
 		return -EOVERFLOW;
 	}
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	dirent = buf->previous;
 	if (dirent) {
 		if (__put_user(offset, &dirent->d_off))
@@ -205,6 +217,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd,
 	buf.previous = NULL;
 	buf.count = count;
 	buf.error = 0;
+	buf.file = f.file;
 
 	error = vfs_readdir(f.file, filldir, &buf);
 	if (error >= 0)
@@ -223,6 +236,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd,
 struct getdents_callback64 {
 	struct linux_dirent64 __user * current_dir;
 	struct linux_dirent64 __user * previous;
+	struct file *file;
 	int count;
 	int error;
 };
@@ -238,6 +252,10 @@ static int filldir64(void * __buf, const char * name, int namlen, loff_t offset,
 	buf->error = -EINVAL;	/* only used if we fail.. */
 	if (reclen > buf->count)
 		return -EINVAL;
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	dirent = buf->previous;
 	if (dirent) {
 		if (__put_user(offset, &dirent->d_off))
@@ -283,6 +301,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd,
 
 	buf.current_dir = dirent;
 	buf.previous = NULL;
+	buf.file = f.file;
 	buf.count = count;
 	buf.error = 0;
 
@@ -291,7 +310,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd,
 		error = buf.error;
 	lastdirent = buf.previous;
 	if (lastdirent) {
-		typeof(lastdirent->d_off) d_off = f.file->f_pos;
+		typeof(((struct linux_dirent64 *)0)->d_off) d_off = f.file->f_pos;
 		if (__put_user(d_off, &lastdirent->d_off))
 			error = -EFAULT;
 		else
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index 2b7882b..1c5ef48 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -2051,7 +2051,7 @@ void do_balance(struct tree_balance *tb,	/* tree_balance structure */
 		return;
 	}
 
-	atomic_inc(&(fs_generation(tb->tb_sb)));
+	atomic_inc_unchecked(&(fs_generation(tb->tb_sb)));
 	do_balance_starts(tb);
 
 	/* balance leaf returns 0 except if combining L R and S into
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index 9cc0740a..46bf953 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -112,7 +112,7 @@ static int show_super(struct seq_file *m, struct super_block *sb)
 		   "SMALL_TAILS " : "NO_TAILS ",
 		   replay_only(sb) ? "REPLAY_ONLY " : "",
 		   convert_reiserfs(sb) ? "CONV " : "",
-		   atomic_read(&r->s_generation_counter),
+		   atomic_read_unchecked(&r->s_generation_counter),
 		   SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
 		   SF(s_do_balance), SF(s_unneeded_left_neighbor),
 		   SF(s_good_search_by_key_reada), SF(s_bmaps),
diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
index 157e474..65a6114 100644
--- a/fs/reiserfs/reiserfs.h
+++ b/fs/reiserfs/reiserfs.h
@@ -453,7 +453,7 @@ struct reiserfs_sb_info {
 	/* Comment? -Hans */
 	wait_queue_head_t s_wait;
 	/* To be obsoleted soon by per buffer seals.. -Hans */
-	atomic_t s_generation_counter;	// increased by one every time the
+	atomic_unchecked_t s_generation_counter;	// increased by one every time the
 	// tree gets re-balanced
 	unsigned long s_properties;	/* File system properties. Currently holds
 					   on-disk FS format */
@@ -1978,7 +1978,7 @@ static inline loff_t max_reiserfs_offset(struct inode *inode)
 #define REISERFS_USER_MEM		1	/* reiserfs user memory mode            */
 
 #define fs_generation(s) (REISERFS_SB(s)->s_generation_counter)
-#define get_generation(s) atomic_read (&fs_generation(s))
+#define get_generation(s) atomic_read_unchecked (&fs_generation(s))
 #define FILESYSTEM_CHANGED_TB(tb)  (get_generation((tb)->tb_sb) != (tb)->fs_gen)
 #define __fs_changed(gen,s) (gen != get_generation (s))
 #define fs_changed(gen,s)		\
diff --git a/fs/select.c b/fs/select.c
index 8c1c96c..a0f9b6d 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -20,6 +20,7 @@
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/poll.h>
+#include <linux/security.h>
 #include <linux/personality.h> /* for STICKY_TIMEOUTS */
 #include <linux/file.h>
 #include <linux/fdtable.h>
@@ -827,6 +828,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
  	struct poll_list *walk = head;
  	unsigned long todo = nfds;
 
+	gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1);
 	if (nfds > rlimit(RLIMIT_NOFILE))
 		return -EINVAL;
 
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 38bb59f..a304f9d 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -10,6 +10,7 @@
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/cred.h>
+#include <linux/sched.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
@@ -60,6 +61,9 @@ int seq_open(struct file *file, const struct seq_operations *op)
 #ifdef CONFIG_USER_NS
 	p->user_ns = file->f_cred->user_ns;
 #endif
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	p->exec_id = current->exec_id;
+#endif
 
 	/*
 	 * Wrappers around seq_open(e.g. swaps_open) need to be
@@ -96,7 +100,7 @@ static int traverse(struct seq_file *m, loff_t offset)
 		return 0;
 	}
 	if (!m->buf) {
-		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
+		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL | GFP_USERCOPY);
 		if (!m->buf)
 			return -ENOMEM;
 	}
@@ -136,7 +140,7 @@ static int traverse(struct seq_file *m, loff_t offset)
 Eoverflow:
 	m->op->stop(m, p);
 	kfree(m->buf);
-	m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
+	m->buf = kmalloc(m->size <<= 1, GFP_KERNEL | GFP_USERCOPY);
 	return !m->buf ? -ENOMEM : -EAGAIN;
 }
 
@@ -191,7 +195,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
 
 	/* grab buffer if we didn't have one */
 	if (!m->buf) {
-		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
+		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL | GFP_USERCOPY);
 		if (!m->buf)
 			goto Enomem;
 	}
@@ -232,7 +236,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
 			goto Fill;
 		m->op->stop(m, p);
 		kfree(m->buf);
-		m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
+		m->buf = kmalloc(m->size <<= 1, GFP_KERNEL | GFP_USERCOPY);
 		if (!m->buf)
 			goto Enomem;
 		m->count = 0;
@@ -581,7 +585,7 @@ static void single_stop(struct seq_file *p, void *v)
 int single_open(struct file *file, int (*show)(struct seq_file *, void *),
 		void *data)
 {
-	struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL);
+	seq_operations_no_const *op = kzalloc(sizeof(*op), GFP_KERNEL);
 	int res = -ENOMEM;
 
 	if (op) {
diff --git a/fs/splice.c b/fs/splice.c
index 29e394e..b13c247 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -195,7 +195,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
 	pipe_lock(pipe);
 
 	for (;;) {
-		if (!pipe->readers) {
+		if (!atomic_read(&pipe->readers)) {
 			send_sig(SIGPIPE, current, 0);
 			if (!ret)
 				ret = -EPIPE;
@@ -249,9 +249,9 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
 			do_wakeup = 0;
 		}
 
-		pipe->waiting_writers++;
+		atomic_inc(&pipe->waiting_writers);
 		pipe_wait(pipe);
-		pipe->waiting_writers--;
+		atomic_dec(&pipe->waiting_writers);
 	}
 
 	pipe_unlock(pipe);
@@ -564,7 +564,7 @@ static ssize_t kernel_readv(struct file *file, const struct iovec *vec,
 	old_fs = get_fs();
 	set_fs(get_ds());
 	/* The cast to a user pointer is valid due to the set_fs() */
-	res = vfs_readv(file, (const struct iovec __user *)vec, vlen, &pos);
+	res = vfs_readv(file, (const struct iovec __force_user *)vec, vlen, &pos);
 	set_fs(old_fs);
 
 	return res;
@@ -579,7 +579,7 @@ ssize_t kernel_write(struct file *file, const char *buf, size_t count,
 	old_fs = get_fs();
 	set_fs(get_ds());
 	/* The cast to a user pointer is valid due to the set_fs() */
-	res = vfs_write(file, (__force const char __user *)buf, count, &pos);
+	res = vfs_write(file, (const char __force_user *)buf, count, &pos);
 	set_fs(old_fs);
 
 	return res;
@@ -632,7 +632,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos,
 			goto err;
 
 		this_len = min_t(size_t, len, PAGE_CACHE_SIZE - offset);
-		vec[i].iov_base = (void __user *) page_address(page);
+		vec[i].iov_base = (void __force_user *) page_address(page);
 		vec[i].iov_len = this_len;
 		spd.pages[i] = page;
 		spd.nr_pages++;
@@ -853,10 +853,10 @@ EXPORT_SYMBOL(splice_from_pipe_feed);
 int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_desc *sd)
 {
 	while (!pipe->nrbufs) {
-		if (!pipe->writers)
+		if (!atomic_read(&pipe->writers))
 			return 0;
 
-		if (!pipe->waiting_writers && sd->num_spliced)
+		if (!atomic_read(&pipe->waiting_writers) && sd->num_spliced)
 			return 0;
 
 		if (sd->flags & SPLICE_F_NONBLOCK)
@@ -1192,7 +1192,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
 		 * out of the pipe right after the splice_to_pipe(). So set
 		 * PIPE_READERS appropriately.
 		 */
-		pipe->readers = 1;
+		atomic_set(&pipe->readers, 1);
 
 		current->splice_pipe = pipe;
 	}
@@ -1741,9 +1741,9 @@ static int ipipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
 			ret = -ERESTARTSYS;
 			break;
 		}
-		if (!pipe->writers)
+		if (!atomic_read(&pipe->writers))
 			break;
-		if (!pipe->waiting_writers) {
+		if (!atomic_read(&pipe->waiting_writers)) {
 			if (flags & SPLICE_F_NONBLOCK) {
 				ret = -EAGAIN;
 				break;
@@ -1775,7 +1775,7 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
 	pipe_lock(pipe);
 
 	while (pipe->nrbufs >= pipe->buffers) {
-		if (!pipe->readers) {
+		if (!atomic_read(&pipe->readers)) {
 			send_sig(SIGPIPE, current, 0);
 			ret = -EPIPE;
 			break;
@@ -1788,9 +1788,9 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
 			ret = -ERESTARTSYS;
 			break;
 		}
-		pipe->waiting_writers++;
+		atomic_inc(&pipe->waiting_writers);
 		pipe_wait(pipe);
-		pipe->waiting_writers--;
+		atomic_dec(&pipe->waiting_writers);
 	}
 
 	pipe_unlock(pipe);
@@ -1826,14 +1826,14 @@ retry:
 	pipe_double_lock(ipipe, opipe);
 
 	do {
-		if (!opipe->readers) {
+		if (!atomic_read(&opipe->readers)) {
 			send_sig(SIGPIPE, current, 0);
 			if (!ret)
 				ret = -EPIPE;
 			break;
 		}
 
-		if (!ipipe->nrbufs && !ipipe->writers)
+		if (!ipipe->nrbufs && !atomic_read(&ipipe->writers))
 			break;
 
 		/*
@@ -1930,7 +1930,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
 	pipe_double_lock(ipipe, opipe);
 
 	do {
-		if (!opipe->readers) {
+		if (!atomic_read(&opipe->readers)) {
 			send_sig(SIGPIPE, current, 0);
 			if (!ret)
 				ret = -EPIPE;
@@ -1975,7 +1975,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
 	 * return EAGAIN if we have the potential of some data in the
 	 * future, otherwise just return 0
 	 */
-	if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK))
+	if (!ret && atomic_read(&ipipe->waiting_writers) && (flags & SPLICE_F_NONBLOCK))
 		ret = -EAGAIN;
 
 	pipe_unlock(ipipe);
diff --git a/fs/stat.c b/fs/stat.c
index 04ce1ac..a13dd1e 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -28,8 +28,13 @@ void generic_fillattr(struct inode *inode, struct kstat *stat)
 	stat->gid = inode->i_gid;
 	stat->rdev = inode->i_rdev;
 	stat->size = i_size_read(inode);
-	stat->atime = inode->i_atime;
-	stat->mtime = inode->i_mtime;
+	if (is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
+		stat->atime = inode->i_ctime;
+		stat->mtime = inode->i_ctime;
+	} else {
+		stat->atime = inode->i_atime;
+		stat->mtime = inode->i_mtime;
+	}
 	stat->ctime = inode->i_ctime;
 	stat->blksize = (1 << inode->i_blkbits);
 	stat->blocks = inode->i_blocks;
@@ -46,8 +51,14 @@ int vfs_getattr(struct path *path, struct kstat *stat)
 	if (retval)
 		return retval;
 
-	if (inode->i_op->getattr)
-		return inode->i_op->getattr(path->mnt, path->dentry, stat);
+	if (inode->i_op->getattr) {
+		retval = inode->i_op->getattr(path->mnt, path->dentry, stat);
+		if (!retval && is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
+			stat->atime = stat->ctime;
+			stat->mtime = stat->ctime;
+		}
+		return retval;
+	}
 
 	generic_fillattr(inode, stat);
 	return 0;
diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index 15c68f9..36a8b3e 100644
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -235,13 +235,13 @@ static int bin_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 	return ret;
 }
 
-static int bin_access(struct vm_area_struct *vma, unsigned long addr,
-		  void *buf, int len, int write)
+static ssize_t bin_access(struct vm_area_struct *vma, unsigned long addr,
+		  void *buf, size_t len, int write)
 {
 	struct file *file = vma->vm_file;
 	struct bin_buffer *bb = file->private_data;
 	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	int ret;
+	ssize_t ret;
 
 	if (!bb->vm_ops)
 		return -EINVAL;
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 6f31590..3c87c8a 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -40,7 +40,7 @@ static DEFINE_IDA(sysfs_ino_ida);
  *
  *	Returns 31 bit hash of ns + name (so it fits in an off_t )
  */
-static unsigned int sysfs_name_hash(const void *ns, const char *name)
+static unsigned int sysfs_name_hash(const void *ns, const unsigned char *name)
 {
 	unsigned long hash = init_name_hash();
 	unsigned int len = strlen(name);
@@ -685,6 +685,18 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
 	struct sysfs_dirent *sd;
 	int rc;
 
+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
+	const char *parent_name = parent_sd->s_name;
+
+	mode = S_IFDIR | S_IRWXU;
+
+	if ((!strcmp(parent_name, "") && (!strcmp(name, "devices") || !strcmp(name, "fs"))) ||
+	    (!strcmp(parent_name, "devices") && !strcmp(name, "system")) ||
+	    (!strcmp(parent_name, "fs") && (!strcmp(name, "selinux") || !strcmp(name, "fuse"))) ||
+	    (!strcmp(parent_name, "system") && !strcmp(name, "cpu")))
+		mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
+#endif
+
 	/* allocate */
 	sd = sysfs_new_dirent(name, mode, SYSFS_DIR);
 	if (!sd)
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 602f56d..6853db8 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -37,7 +37,7 @@ static DEFINE_SPINLOCK(sysfs_open_dirent_lock);
 
 struct sysfs_open_dirent {
 	atomic_t		refcnt;
-	atomic_t		event;
+	atomic_unchecked_t	event;
 	wait_queue_head_t	poll;
 	struct list_head	buffers; /* goes through sysfs_buffer.list */
 };
@@ -81,7 +81,7 @@ static int fill_read_buffer(struct dentry * dentry, struct sysfs_buffer * buffer
 	if (!sysfs_get_active(attr_sd))
 		return -ENODEV;
 
-	buffer->event = atomic_read(&attr_sd->s_attr.open->event);
+	buffer->event = atomic_read_unchecked(&attr_sd->s_attr.open->event);
 	count = ops->show(kobj, attr_sd->s_attr.attr, buffer->page);
 
 	sysfs_put_active(attr_sd);
@@ -287,7 +287,7 @@ static int sysfs_get_open_dirent(struct sysfs_dirent *sd,
 		return -ENOMEM;
 
 	atomic_set(&new_od->refcnt, 0);
-	atomic_set(&new_od->event, 1);
+	atomic_set_unchecked(&new_od->event, 1);
 	init_waitqueue_head(&new_od->poll);
 	INIT_LIST_HEAD(&new_od->buffers);
 	goto retry;
@@ -432,7 +432,7 @@ static unsigned int sysfs_poll(struct file *filp, poll_table *wait)
 
 	sysfs_put_active(attr_sd);
 
-	if (buffer->event != atomic_read(&od->event))
+	if (buffer->event != atomic_read_unchecked(&od->event))
 		goto trigger;
 
 	return DEFAULT_POLLMASK;
@@ -451,7 +451,7 @@ void sysfs_notify_dirent(struct sysfs_dirent *sd)
 
 	od = sd->s_attr.open;
 	if (od) {
-		atomic_inc(&od->event);
+		atomic_inc_unchecked(&od->event);
 		wake_up_interruptible(&od->poll);
 	}
 
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 8c940df..25b733e 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -305,7 +305,7 @@ static void *sysfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 
 static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
 {
-	char *page = nd_get_link(nd);
+	const char *page = nd_get_link(nd);
 	if (!IS_ERR(page))
 		free_page((unsigned long)page);
 }
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 69d4889..a810bd4 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -188,7 +188,7 @@ static inline u32 PDP_swab(u32 x)
 #endif
 }
 
-static inline __u32 fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
+static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
 {
 	if (sbi->s_bytesex == BYTESEX_PDP)
 		return PDP_swab((__force __u32)n);
diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
index e18b988..f1d4ad0f 100644
--- a/fs/ubifs/io.c
+++ b/fs/ubifs/io.c
@@ -155,7 +155,7 @@ int ubifs_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len)
 	return err;
 }
 
-int ubifs_leb_unmap(struct ubifs_info *c, int lnum)
+int __intentional_overflow(-1) ubifs_leb_unmap(struct ubifs_info *c, int lnum)
 {
 	int err;
 
diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index c175b4d..8f36a16 100644
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -289,7 +289,7 @@ void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
 
 u8 udf_tag_checksum(const struct tag *t)
 {
-	u8 *data = (u8 *)t;
+	const u8 *data = (const u8 *)t;
 	u8 checksum = 0;
 	int i;
 	for (i = 0; i < sizeof(struct tag); ++i)
diff --git a/fs/ufs/swab.h b/fs/ufs/swab.h
index 8d974c4..b82f6ec 100644
--- a/fs/ufs/swab.h
+++ b/fs/ufs/swab.h
@@ -22,7 +22,7 @@ enum {
 	BYTESEX_BE
 };
 
-static inline u64
+static inline u64 __intentional_overflow(-1)
 fs64_to_cpu(struct super_block *sbp, __fs64 n)
 {
 	if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
@@ -40,7 +40,7 @@ cpu_to_fs64(struct super_block *sbp, u64 n)
 		return (__force __fs64)cpu_to_be64(n);
 }
 
-static inline u32
+static inline u32 __intentional_overflow(-1)
 fs32_to_cpu(struct super_block *sbp, __fs32 n)
 {
 	if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
diff --git a/fs/utimes.c b/fs/utimes.c
index f4fb7ec..3fe03c0 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -1,6 +1,7 @@
 #include <linux/compiler.h>
 #include <linux/file.h>
 #include <linux/fs.h>
+#include <linux/security.h>
 #include <linux/linkage.h>
 #include <linux/mount.h>
 #include <linux/namei.h>
@@ -101,6 +102,12 @@ static int utimes_common(struct path *path, struct timespec *times)
 				goto mnt_drop_write_and_out;
 		}
 	}
+
+	if (!gr_acl_handle_utime(path->dentry, path->mnt)) {
+		error = -EACCES;
+		goto mnt_drop_write_and_out;
+	}
+
 	mutex_lock(&inode->i_mutex);
 	error = notify_change(path->dentry, &newattrs);
 	mutex_unlock(&inode->i_mutex);
diff --git a/fs/xattr.c b/fs/xattr.c
index 3377dff..4d074d9 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -227,6 +227,27 @@ int vfs_xattr_cmp(struct dentry *dentry, const char *xattr_name,
 	return rc;
 }
 
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+ssize_t
+pax_getxattr(struct dentry *dentry, void *value, size_t size)
+{
+	struct inode *inode = dentry->d_inode;
+	ssize_t error;
+
+	error = inode_permission(inode, MAY_EXEC);
+	if (error)
+		return error;
+
+	if (inode->i_op->getxattr)
+		error = inode->i_op->getxattr(dentry, XATTR_NAME_PAX_FLAGS, value, size);
+	else
+		error = -EOPNOTSUPP;
+
+	return error;
+}
+EXPORT_SYMBOL(pax_getxattr);
+#endif
+
 ssize_t
 vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
 {
@@ -319,7 +340,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr);
  * Extended attribute SET operations
  */
 static long
-setxattr(struct dentry *d, const char __user *name, const void __user *value,
+setxattr(struct path *path, const char __user *name, const void __user *value,
 	 size_t size, int flags)
 {
 	int error;
@@ -355,7 +376,12 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value,
 			posix_acl_fix_xattr_from_user(kvalue, size);
 	}
 
-	error = vfs_setxattr(d, kname, kvalue, size, flags);
+	if (!gr_acl_handle_setxattr(path->dentry, path->mnt)) {
+		error = -EACCES;
+		goto out;
+	}
+
+	error = vfs_setxattr(path->dentry, kname, kvalue, size, flags);
 out:
 	if (vvalue)
 		vfree(vvalue);
@@ -377,7 +403,7 @@ retry:
 		return error;
 	error = mnt_want_write(path.mnt);
 	if (!error) {
-		error = setxattr(path.dentry, name, value, size, flags);
+		error = setxattr(&path, name, value, size, flags);
 		mnt_drop_write(path.mnt);
 	}
 	path_put(&path);
@@ -401,7 +427,7 @@ retry:
 		return error;
 	error = mnt_want_write(path.mnt);
 	if (!error) {
-		error = setxattr(path.dentry, name, value, size, flags);
+		error = setxattr(&path, name, value, size, flags);
 		mnt_drop_write(path.mnt);
 	}
 	path_put(&path);
@@ -416,16 +442,14 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
 		const void __user *,value, size_t, size, int, flags)
 {
 	struct fd f = fdget(fd);
-	struct dentry *dentry;
 	int error = -EBADF;
 
 	if (!f.file)
 		return error;
-	dentry = f.file->f_path.dentry;
-	audit_inode(NULL, dentry, 0);
+	audit_inode(NULL, f.file->f_path.dentry, 0);
 	error = mnt_want_write_file(f.file);
 	if (!error) {
-		error = setxattr(dentry, name, value, size, flags);
+		error = setxattr(&f.file->f_path, name, value, size, flags);
 		mnt_drop_write_file(f.file);
 	}
 	fdput(f);
diff --git a/fs/xattr_acl.c b/fs/xattr_acl.c
index 9fbea87..6b19972 100644
--- a/fs/xattr_acl.c
+++ b/fs/xattr_acl.c
@@ -76,8 +76,8 @@ struct posix_acl *
 posix_acl_from_xattr(struct user_namespace *user_ns,
 		     const void *value, size_t size)
 {
-	posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
-	posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
+	const posix_acl_xattr_header *header = (const posix_acl_xattr_header *)value;
+	const posix_acl_xattr_entry *entry = (const posix_acl_xattr_entry *)(header+1), *end;
 	int count;
 	struct posix_acl *acl;
 	struct posix_acl_entry *acl_e;
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index b44af92..06073da 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -192,7 +192,7 @@ xfs_bmap_validate_ret(
 	int			nmap,
 	int			ret_nmap);
 #else
-#define	xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
+#define	xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) do {} while (0)
 #endif /* DEBUG */
 
 STATIC int
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index 1b9fc3e..e1bdde0 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -851,7 +851,15 @@ xfs_dir2_sf_getdents(
 		}
 
 		ino = xfs_dir2_sfe_get_ino(sfp, sfep);
-		if (filldir(dirent, (char *)sfep->name, sfep->namelen,
+		if (dp->i_df.if_u1.if_data == dp->i_df.if_u2.if_inline_data) {
+			char name[sfep->namelen];
+			memcpy(name, sfep->name, sfep->namelen);
+			if (filldir(dirent, name, sfep->namelen,
+			    off & 0x7fffffff, ino, DT_UNKNOWN)) {
+				*offset = off & 0x7fffffff;
+				return 0;
+			}
+		} else if (filldir(dirent, (char *)sfep->name, sfep->namelen,
 			    off & 0x7fffffff, ino, DT_UNKNOWN)) {
 			*offset = off & 0x7fffffff;
 			return 0;
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index d681e34..2a3f5ab 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -127,7 +127,7 @@ xfs_find_handle(
 	}
 
 	error = -EFAULT;
-	if (copy_to_user(hreq->ohandle, &handle, hsize) ||
+	if (hsize > sizeof handle || copy_to_user(hreq->ohandle, &handle, hsize) ||
 	    copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32)))
 		goto out_put;
 
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index d82efaa..0904a8e 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -395,7 +395,7 @@ xfs_vn_put_link(
 	struct nameidata *nd,
 	void		*p)
 {
-	char		*s = nd_get_link(nd);
+	const char	*s = nd_get_link(nd);
 
 	if (!IS_ERR(s))
 		kfree(s);
diff --git a/grsecurity/Kconfig b/grsecurity/Kconfig
new file mode 100644
index 0000000..7174794
--- /dev/null
+++ b/grsecurity/Kconfig
@@ -0,0 +1,1031 @@
+#
+# grecurity configuration
+#
+menu "Memory Protections"
+depends on GRKERNSEC
+
+config GRKERNSEC_KMEM
+	bool "Deny reading/writing to /dev/kmem, /dev/mem, and /dev/port"
+	default y if GRKERNSEC_CONFIG_AUTO
+	select STRICT_DEVMEM if (X86 || ARM || TILE || S390)
+	help
+	  If you say Y here, /dev/kmem and /dev/mem won't be allowed to
+	  be written to or read from to modify or leak the contents of the running
+	  kernel.  /dev/port will also not be allowed to be opened and support
+	  for /dev/cpu/*/msr will be removed.  If you have module
+	  support disabled, enabling this will close up five ways that are
+	  currently used  to insert malicious code into the running kernel.
+
+	  Even with all these features enabled, we still highly recommend that
+	  you use the RBAC system, as it is still possible for an attacker to
+	  modify the running kernel through privileged I/O granted by ioperm/iopl.
+
+	  If you are not using XFree86, you may be able to stop this additional
+	  case by enabling the 'Disable privileged I/O' option. Though nothing
+	  legitimately writes to /dev/kmem, XFree86 does need to write to /dev/mem,
+	  but only to video memory, which is the only writing we allow in this
+	  case.  If /dev/kmem or /dev/mem are mmaped without PROT_WRITE, they will
+	  not be allowed to mprotect it with PROT_WRITE later.
+	  Enabling this feature will prevent the "cpupower" and "powertop" tools
+	  from working.
+
+	  It is highly recommended that you say Y here if you meet all the
+	  conditions above.
+
+config GRKERNSEC_VM86
+	bool "Restrict VM86 mode"
+	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
+	depends on X86_32
+
+	help
+	  If you say Y here, only processes with CAP_SYS_RAWIO will be able to
+	  make use of a special execution mode on 32bit x86 processors called
+	  Virtual 8086 (VM86) mode.  XFree86 may need vm86 mode for certain
+	  video cards and will still work with this option enabled.  The purpose
+	  of the option is to prevent exploitation of emulation errors in
+	  virtualization of vm86 mode like the one discovered in VMWare in 2009.
+	  Nearly all users should be able to enable this option.
+
+config GRKERNSEC_IO
+	bool "Disable privileged I/O"
+	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
+	depends on X86
+	select RTC_CLASS
+	select RTC_INTF_DEV
+	select RTC_DRV_CMOS
+
+	help
+	  If you say Y here, all ioperm and iopl calls will return an error.
+	  Ioperm and iopl can be used to modify the running kernel.
+	  Unfortunately, some programs need this access to operate properly,
+	  the most notable of which are XFree86 and hwclock.  hwclock can be
+	  remedied by having RTC support in the kernel, so real-time 
+	  clock support is enabled if this option is enabled, to ensure 
+	  that hwclock operates correctly.  XFree86 still will not 
+	  operate correctly with this option enabled, so DO NOT CHOOSE Y 
+	  IF YOU USE XFree86.  If you use XFree86 and you still want to 
+	  protect your kernel against modification, use the RBAC system.
+
+config GRKERNSEC_JIT_HARDEN
+	bool "Harden BPF JIT against spray attacks"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on BPF_JIT
+	help
+	  If you say Y here, the native code generated by the kernel's Berkeley
+	  Packet Filter (BPF) JIT engine will be hardened against JIT-spraying
+	  attacks that attempt to fit attacker-beneficial instructions in
+	  32bit immediate fields of JIT-generated native instructions.  The
+	  attacker will generally aim to cause an unintended instruction sequence
+	  of JIT-generated native code to execute by jumping into the middle of
+	  a generated instruction.  This feature effectively randomizes the 32bit
+	  immediate constants present in the generated code to thwart such attacks.
+
+	  If you're using KERNEXEC, it's recommended that you enable this option
+	  to supplement the hardening of the kernel.
+  
+config GRKERNSEC_RAND_THREADSTACK
+	bool "Insert random gaps between thread stacks"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on PAX_RANDMMAP && !PPC && BROKEN
+	help
+	  If you say Y here, a random-sized gap will be enforced between allocated
+	  thread stacks.  Glibc's NPTL and other threading libraries that
+	  pass MAP_STACK to the kernel for thread stack allocation are supported.
+	  The implementation currently provides 8 bits of entropy for the gap.
+
+	  Many distributions do not compile threaded remote services with the
+	  -fstack-check argument to GCC, causing the variable-sized stack-based
+	  allocator, alloca(), to not probe the stack on allocation.  This
+	  permits an unbounded alloca() to skip over any guard page and potentially
+	  modify another thread's stack reliably.  An enforced random gap
+	  reduces the reliability of such an attack and increases the chance
+	  that such a read/write to another thread's stack instead lands in
+	  an unmapped area, causing a crash and triggering grsecurity's
+	  anti-bruteforcing logic.
+
+config GRKERNSEC_PROC_MEMMAP
+	bool "Harden ASLR against information leaks and entropy reduction"
+	default y if (GRKERNSEC_CONFIG_AUTO || PAX_NOEXEC || PAX_ASLR)
+	depends on PAX_NOEXEC || PAX_ASLR
+	help
+	  If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will
+	  give no information about the addresses of its mappings if
+	  PaX features that rely on random addresses are enabled on the task.
+	  In addition to sanitizing this information and disabling other
+	  dangerous sources of information, this option causes reads of sensitive
+	  /proc/<pid> entries where the file descriptor was opened in a different
+	  task than the one performing the read.  Such attempts are logged.
+	  This option also limits argv/env strings for suid/sgid binaries
+	  to 512KB to prevent a complete exhaustion of the stack entropy provided
+	  by ASLR.  Finally, it places an 8MB stack resource limit on suid/sgid
+	  binaries to prevent alternative mmap layouts from being abused.
+
+	  If you use PaX it is essential that you say Y here as it closes up
+	  several holes that make full ASLR useless locally.
+
+config GRKERNSEC_BRUTE
+	bool "Deter exploit bruteforcing"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, attempts to bruteforce exploits against forking
+	  daemons such as apache or sshd, as well as against suid/sgid binaries
+	  will be deterred.  When a child of a forking daemon is killed by PaX
+	  or crashes due to an illegal instruction or other suspicious signal,
+	  the parent process will be delayed 30 seconds upon every subsequent
+	  fork until the administrator is able to assess the situation and
+	  restart the daemon.
+	  In the suid/sgid case, the attempt is logged, the user has all their
+	  processes terminated, and they are prevented from executing any further
+	  processes for 15 minutes.
+	  It is recommended that you also enable signal logging in the auditing
+	  section so that logs are generated when a process triggers a suspicious
+	  signal.
+	  If the sysctl option is enabled, a sysctl option with name
+	  "deter_bruteforce" is created.
+
+
+config GRKERNSEC_MODHARDEN
+	bool "Harden module auto-loading"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on MODULES
+	help
+	  If you say Y here, module auto-loading in response to use of some
+	  feature implemented by an unloaded module will be restricted to
+	  root users.  Enabling this option helps defend against attacks 
+	  by unprivileged users who abuse the auto-loading behavior to 
+	  cause a vulnerable module to load that is then exploited.
+
+	  If this option prevents a legitimate use of auto-loading for a 
+	  non-root user, the administrator can execute modprobe manually 
+	  with the exact name of the module mentioned in the alert log.
+	  Alternatively, the administrator can add the module to the list
+	  of modules loaded at boot by modifying init scripts.
+
+	  Modification of init scripts will most likely be needed on 
+	  Ubuntu servers with encrypted home directory support enabled,
+	  as the first non-root user logging in will cause the ecb(aes),
+	  ecb(aes)-all, cbc(aes), and cbc(aes)-all  modules to be loaded.
+
+config GRKERNSEC_HIDESYM
+	bool "Hide kernel symbols"
+	default y if GRKERNSEC_CONFIG_AUTO
+	select PAX_USERCOPY_SLABS
+	help
+	  If you say Y here, getting information on loaded modules, and
+	  displaying all kernel symbols through a syscall will be restricted
+	  to users with CAP_SYS_MODULE.  For software compatibility reasons,
+	  /proc/kallsyms will be restricted to the root user.  The RBAC
+	  system can hide that entry even from root.
+
+	  This option also prevents leaking of kernel addresses through
+	  several /proc entries.
+
+	  Note that this option is only effective provided the following
+	  conditions are met:
+	  1) The kernel using grsecurity is not precompiled by some distribution
+	  2) You have also enabled GRKERNSEC_DMESG
+	  3) You are using the RBAC system and hiding other files such as your
+	     kernel image and System.map.  Alternatively, enabling this option
+	     causes the permissions on /boot, /lib/modules, and the kernel
+	     source directory to change at compile time to prevent 
+	     reading by non-root users.
+	  If the above conditions are met, this option will aid in providing a
+	  useful protection against local kernel exploitation of overflows
+	  and arbitrary read/write vulnerabilities.
+
+config GRKERNSEC_KERN_LOCKOUT
+	bool "Active kernel exploit response"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on X86 || ARM || PPC || SPARC
+	help
+	  If you say Y here, when a PaX alert is triggered due to suspicious
+	  activity in the kernel (from KERNEXEC/UDEREF/USERCOPY)
+	  or an OOPS occurs due to bad memory accesses, instead of just
+	  terminating the offending process (and potentially allowing
+	  a subsequent exploit from the same user), we will take one of two
+	  actions:
+	   If the user was root, we will panic the system
+	   If the user was non-root, we will log the attempt, terminate
+	   all processes owned by the user, then prevent them from creating
+	   any new processes until the system is restarted
+	  This deters repeated kernel exploitation/bruteforcing attempts
+	  and is useful for later forensics.
+
+endmenu
+menu "Role Based Access Control Options"
+depends on GRKERNSEC
+
+config GRKERNSEC_RBAC_DEBUG
+	bool
+
+config GRKERNSEC_NO_RBAC
+	bool "Disable RBAC system"
+	help
+	  If you say Y here, the /dev/grsec device will be removed from the kernel,
+	  preventing the RBAC system from being enabled.  You should only say Y
+	  here if you have no intention of using the RBAC system, so as to prevent
+	  an attacker with root access from misusing the RBAC system to hide files
+	  and processes when loadable module support and /dev/[k]mem have been
+	  locked down.
+
+config GRKERNSEC_ACL_HIDEKERN
+	bool "Hide kernel processes"
+	help
+	  If you say Y here, all kernel threads will be hidden to all
+	  processes but those whose subject has the "view hidden processes"
+	  flag.
+
+config GRKERNSEC_ACL_MAXTRIES
+	int "Maximum tries before password lockout"
+	default 3
+	help
+	  This option enforces the maximum number of times a user can attempt
+	  to authorize themselves with the grsecurity RBAC system before being
+	  denied the ability to attempt authorization again for a specified time.
+	  The lower the number, the harder it will be to brute-force a password.
+
+config GRKERNSEC_ACL_TIMEOUT
+	int "Time to wait after max password tries, in seconds"
+	default 30
+	help
+	  This option specifies the time the user must wait after attempting to
+	  authorize to the RBAC system with the maximum number of invalid
+	  passwords.  The higher the number, the harder it will be to brute-force
+	  a password.
+
+endmenu
+menu "Filesystem Protections"
+depends on GRKERNSEC
+
+config GRKERNSEC_PROC
+	bool "Proc restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, the permissions of the /proc filesystem
+	  will be altered to enhance system security and privacy.  You MUST
+  	  choose either a user only restriction or a user and group restriction.
+	  Depending upon the option you choose, you can either restrict users to
+	  see only the processes they themselves run, or choose a group that can
+	  view all processes and files normally restricted to root if you choose
+	  the "restrict to user only" option.  NOTE: If you're running identd or
+	  ntpd as a non-root user, you will have to run it as the group you
+	  specify here.
+
+config GRKERNSEC_PROC_USER
+	bool "Restrict /proc to user only"
+	depends on GRKERNSEC_PROC
+	help
+	  If you say Y here, non-root users will only be able to view their own
+	  processes, and restricts them from viewing network-related information,
+	  and viewing kernel symbol and module information.
+
+config GRKERNSEC_PROC_USERGROUP
+	bool "Allow special group"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER
+	help
+	  If you say Y here, you will be able to select a group that will be
+	  able to view all processes and network-related information.  If you've
+	  enabled GRKERNSEC_HIDESYM, kernel and symbol information may still
+	  remain hidden.  This option is useful if you want to run identd as
+	  a non-root user.  The group you select may also be chosen at boot time
+	  via "grsec_proc_gid=" on the kernel commandline.
+
+config GRKERNSEC_PROC_GID
+	int "GID for special group"
+	depends on GRKERNSEC_PROC_USERGROUP
+	default 1001
+
+config GRKERNSEC_PROC_ADD
+	bool "Additional restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP
+	help
+	  If you say Y here, additional restrictions will be placed on
+	  /proc that keep normal users from viewing device information and 
+	  slabinfo information that could be useful for exploits.
+
+config GRKERNSEC_LINK
+	bool "Linking restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, /tmp race exploits will be prevented, since users
+	  will no longer be able to follow symlinks owned by other users in
+	  world-writable +t directories (e.g. /tmp), unless the owner of the
+	  symlink is the owner of the directory. users will also not be
+	  able to hardlink to files they do not own.  If the sysctl option is
+	  enabled, a sysctl option with name "linking_restrictions" is created.
+
+config GRKERNSEC_SYMLINKOWN
+	bool "Kernel-enforced SymlinksIfOwnerMatch"
+	default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
+	help
+	  Apache's SymlinksIfOwnerMatch option has an inherent race condition
+	  that prevents it from being used as a security feature.  As Apache
+	  verifies the symlink by performing a stat() against the target of
+	  the symlink before it is followed, an attacker can setup a symlink
+	  to point to a same-owned file, then replace the symlink with one
+	  that targets another user's file just after Apache "validates" the
+	  symlink -- a classic TOCTOU race.  If you say Y here, a complete,
+	  race-free replacement for Apache's "SymlinksIfOwnerMatch" option
+	  will be in place for the group you specify. If the sysctl option
+	  is enabled, a sysctl option with name "enforce_symlinksifowner" is
+	  created.
+
+config GRKERNSEC_SYMLINKOWN_GID
+	int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
+	depends on GRKERNSEC_SYMLINKOWN
+	default 1006
+	help
+	  Setting this GID determines what group kernel-enforced
+	  SymlinksIfOwnerMatch will be enabled for.  If the sysctl option
+	  is enabled, a sysctl option with name "symlinkown_gid" is created.
+
+config GRKERNSEC_FIFO
+	bool "FIFO restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, users will not be able to write to FIFOs they don't
+	  own in world-writable +t directories (e.g. /tmp), unless the owner of
+	  the FIFO is the same owner of the directory it's held in.  If the sysctl
+	  option is enabled, a sysctl option with name "fifo_restrictions" is
+	  created.
+
+config GRKERNSEC_SYSFS_RESTRICT
+	bool "Sysfs/debugfs restriction"
+	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
+	depends on SYSFS
+	help
+	  If you say Y here, sysfs (the pseudo-filesystem mounted at /sys) and
+	  any filesystem normally mounted under it (e.g. debugfs) will be
+	  mostly accessible only by root.  These filesystems generally provide access
+	  to hardware and debug information that isn't appropriate for unprivileged
+	  users of the system.  Sysfs and debugfs have also become a large source
+	  of new vulnerabilities, ranging from infoleaks to local compromise.
+	  There has been very little oversight with an eye toward security involved
+	  in adding new exporters of information to these filesystems, so their
+	  use is discouraged.
+	  For reasons of compatibility, a few directories have been whitelisted
+	  for access by non-root users:
+	  /sys/fs/selinux
+	  /sys/fs/fuse
+	  /sys/devices/system/cpu
+
+config GRKERNSEC_ROFS
+	bool "Runtime read-only mount protection"
+	help
+	  If you say Y here, a sysctl option with name "romount_protect" will
+	  be created.  By setting this option to 1 at runtime, filesystems
+	  will be protected in the following ways:
+	  * No new writable mounts will be allowed
+	  * Existing read-only mounts won't be able to be remounted read/write
+	  * Write operations will be denied on all block devices
+	  This option acts independently of grsec_lock: once it is set to 1,
+	  it cannot be turned off.  Therefore, please be mindful of the resulting
+	  behavior if this option is enabled in an init script on a read-only
+	  filesystem.  This feature is mainly intended for secure embedded systems.
+
+config GRKERNSEC_DEVICE_SIDECHANNEL
+	bool "Eliminate stat/notify-based device sidechannels"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, timing analyses on block or character
+	  devices like /dev/ptmx using stat or inotify/dnotify/fanotify
+	  will be thwarted for unprivileged users.  If a process without
+	  CAP_MKNOD stats such a device, the last access and last modify times
+	  will match the device's create time.  No access or modify events
+	  will be triggered through inotify/dnotify/fanotify for such devices.
+	  This feature will prevent attacks that may at a minimum
+	  allow an attacker to determine the administrator's password length.
+
+config GRKERNSEC_CHROOT
+	bool "Chroot jail restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, you will be able to choose several options that will
+	  make breaking out of a chrooted jail much more difficult.  If you
+	  encounter no software incompatibilities with the following options, it
+	  is recommended that you enable each one.
+
+config GRKERNSEC_CHROOT_MOUNT
+	bool "Deny mounts"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to
+	  mount or remount filesystems.  If the sysctl option is enabled, a
+	  sysctl option with name "chroot_deny_mount" is created.
+
+config GRKERNSEC_CHROOT_DOUBLE
+	bool "Deny double-chroots"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to chroot
+	  again outside the chroot.  This is a widely used method of breaking
+	  out of a chroot jail and should not be allowed.  If the sysctl 
+	  option is enabled, a sysctl option with name 
+	  "chroot_deny_chroot" is created.
+
+config GRKERNSEC_CHROOT_PIVOT
+	bool "Deny pivot_root in chroot"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to use
+	  a function called pivot_root() that was introduced in Linux 2.3.41.  It
+	  works similar to chroot in that it changes the root filesystem.  This
+	  function could be misused in a chrooted process to attempt to break out
+	  of the chroot, and therefore should not be allowed.  If the sysctl
+	  option is enabled, a sysctl option with name "chroot_deny_pivot" is
+	  created.
+
+config GRKERNSEC_CHROOT_CHDIR
+	bool "Enforce chdir(\"/\") on all chroots"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, the current working directory of all newly-chrooted
+	  applications will be set to the the root directory of the chroot.
+	  The man page on chroot(2) states:
+	  Note that this call does not change  the  current  working
+	  directory,  so  that `.' can be outside the tree rooted at
+	  `/'.  In particular, the  super-user  can  escape  from  a
+	  `chroot jail' by doing `mkdir foo; chroot foo; cd ..'.
+
+	  It is recommended that you say Y here, since it's not known to break
+	  any software.  If the sysctl option is enabled, a sysctl option with
+	  name "chroot_enforce_chdir" is created.
+
+config GRKERNSEC_CHROOT_CHMOD
+	bool "Deny (f)chmod +s"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to chmod
+	  or fchmod files to make them have suid or sgid bits.  This protects
+	  against another published method of breaking a chroot.  If the sysctl
+	  option is enabled, a sysctl option with name "chroot_deny_chmod" is
+	  created.
+
+config GRKERNSEC_CHROOT_FCHDIR
+	bool "Deny fchdir out of chroot"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, a well-known method of breaking chroots by fchdir'ing
+	  to a file descriptor of the chrooting process that points to a directory
+	  outside the filesystem will be stopped.  If the sysctl option
+	  is enabled, a sysctl option with name "chroot_deny_fchdir" is created.
+
+config GRKERNSEC_CHROOT_MKNOD
+	bool "Deny mknod"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be allowed to
+	  mknod.  The problem with using mknod inside a chroot is that it
+	  would allow an attacker to create a device entry that is the same
+	  as one on the physical root of your system, which could range from
+	  anything from the console device to a device for your harddrive (which
+	  they could then use to wipe the drive or steal data).  It is recommended
+	  that you say Y here, unless you run into software incompatibilities.
+	  If the sysctl option is enabled, a sysctl option with name
+	  "chroot_deny_mknod" is created.
+
+config GRKERNSEC_CHROOT_SHMAT
+	bool "Deny shmat() out of chroot"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to attach
+	  to shared memory segments that were created outside of the chroot jail.
+	  It is recommended that you say Y here.  If the sysctl option is enabled,
+	  a sysctl option with name "chroot_deny_shmat" is created.
+
+config GRKERNSEC_CHROOT_UNIX
+	bool "Deny access to abstract AF_UNIX sockets out of chroot"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to
+	  connect to abstract (meaning not belonging to a filesystem) Unix
+	  domain sockets that were bound outside of a chroot.  It is recommended
+	  that you say Y here.  If the sysctl option is enabled, a sysctl option
+	  with name "chroot_deny_unix" is created.
+
+config GRKERNSEC_CHROOT_FINDTASK
+	bool "Protect outside processes"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to
+	  kill, send signals with fcntl, ptrace, capget, getpgid, setpgid, 
+	  getsid, or view any process outside of the chroot.  If the sysctl
+	  option is enabled, a sysctl option with name "chroot_findtask" is
+	  created.
+
+config GRKERNSEC_CHROOT_NICE
+	bool "Restrict priority changes"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to raise
+	  the priority of processes in the chroot, or alter the priority of
+	  processes outside the chroot.  This provides more security than simply
+	  removing CAP_SYS_NICE from the process' capability set.  If the
+	  sysctl option is enabled, a sysctl option with name "chroot_restrict_nice"
+	  is created.
+
+config GRKERNSEC_CHROOT_SYSCTL
+	bool "Deny sysctl writes"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, an attacker in a chroot will not be able to
+	  write to sysctl entries, either by sysctl(2) or through a /proc
+	  interface.  It is strongly recommended that you say Y here. If the
+	  sysctl option is enabled, a sysctl option with name
+	  "chroot_deny_sysctl" is created.
+
+config GRKERNSEC_CHROOT_CAPS
+	bool "Capability restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, the capabilities on all processes within a
+	  chroot jail will be lowered to stop module insertion, raw i/o,
+	  system and net admin tasks, rebooting the system, modifying immutable
+	  files, modifying IPC owned by another, and changing the system time.
+	  This is left an option because it can break some apps.  Disable this
+	  if your chrooted apps are having problems performing those kinds of
+	  tasks.  If the sysctl option is enabled, a sysctl option with
+	  name "chroot_caps" is created.
+
+config GRKERNSEC_CHROOT_INITRD
+	bool "Exempt initrd tasks from restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT && BLK_DEV_RAM
+	help
+	  If you say Y here, tasks started prior to init will be exempted from
+	  grsecurity's chroot restrictions.  This option is mainly meant to
+	  resolve Plymouth's performing privileged operations unnecessarily
+	  in a chroot.
+
+endmenu
+menu "Kernel Auditing"
+depends on GRKERNSEC
+
+config GRKERNSEC_AUDIT_GROUP
+	bool "Single group for auditing"
+	help
+	  If you say Y here, the exec and chdir logging features will only operate
+	  on a group you specify.  This option is recommended if you only want to
+	  watch certain users instead of having a large amount of logs from the
+	  entire system.  If the sysctl option is enabled, a sysctl option with
+	  name "audit_group" is created.
+
+config GRKERNSEC_AUDIT_GID
+	int "GID for auditing"
+	depends on GRKERNSEC_AUDIT_GROUP
+	default 1007
+
+config GRKERNSEC_EXECLOG
+	bool "Exec logging"
+	help
+	  If you say Y here, all execve() calls will be logged (since the
+	  other exec*() calls are frontends to execve(), all execution
+	  will be logged).  Useful for shell-servers that like to keep track
+	  of their users.  If the sysctl option is enabled, a sysctl option with
+	  name "exec_logging" is created.
+	  WARNING: This option when enabled will produce a LOT of logs, especially
+	  on an active system.
+
+config GRKERNSEC_RESLOG
+	bool "Resource logging"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, all attempts to overstep resource limits will
+	  be logged with the resource name, the requested size, and the current
+	  limit.  It is highly recommended that you say Y here.  If the sysctl
+	  option is enabled, a sysctl option with name "resource_logging" is
+	  created.  If the RBAC system is enabled, the sysctl value is ignored.
+
+config GRKERNSEC_CHROOT_EXECLOG
+	bool "Log execs within chroot"
+	help
+	  If you say Y here, all executions inside a chroot jail will be logged
+	  to syslog.  This can cause a large amount of logs if certain
+	  applications (eg. djb's daemontools) are installed on the system, and
+	  is therefore left as an option.  If the sysctl option is enabled, a
+	  sysctl option with name "chroot_execlog" is created.
+
+config GRKERNSEC_AUDIT_PTRACE
+	bool "Ptrace logging"
+	help
+	  If you say Y here, all attempts to attach to a process via ptrace
+	  will be logged.  If the sysctl option is enabled, a sysctl option
+	  with name "audit_ptrace" is created.
+
+config GRKERNSEC_AUDIT_CHDIR
+	bool "Chdir logging"
+	help
+	  If you say Y here, all chdir() calls will be logged.  If the sysctl
+ 	  option is enabled, a sysctl option with name "audit_chdir" is created.
+
+config GRKERNSEC_AUDIT_MOUNT
+	bool "(Un)Mount logging"
+	help
+	  If you say Y here, all mounts and unmounts will be logged.  If the
+	  sysctl option is enabled, a sysctl option with name "audit_mount" is
+	  created.
+
+config GRKERNSEC_SIGNAL
+	bool "Signal logging"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, certain important signals will be logged, such as
+	  SIGSEGV, which will as a result inform you of when a error in a program
+	  occurred, which in some cases could mean a possible exploit attempt.
+	  If the sysctl option is enabled, a sysctl option with name
+	  "signal_logging" is created.
+
+config GRKERNSEC_FORKFAIL
+	bool "Fork failure logging"
+	help
+	  If you say Y here, all failed fork() attempts will be logged.
+	  This could suggest a fork bomb, or someone attempting to overstep
+	  their process limit.  If the sysctl option is enabled, a sysctl option
+	  with name "forkfail_logging" is created.
+
+config GRKERNSEC_TIME
+	bool "Time change logging"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, any changes of the system clock will be logged.
+	  If the sysctl option is enabled, a sysctl option with name
+	  "timechange_logging" is created.
+
+config GRKERNSEC_PROC_IPADDR
+	bool "/proc/<pid>/ipaddr support"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, a new entry will be added to each /proc/<pid>
+	  directory that contains the IP address of the person using the task.
+	  The IP is carried across local TCP and AF_UNIX stream sockets.
+	  This information can be useful for IDS/IPSes to perform remote response
+	  to a local attack.  The entry is readable by only the owner of the
+	  process (and root if he has CAP_DAC_OVERRIDE, which can be removed via
+	  the RBAC system), and thus does not create privacy concerns.
+
+config GRKERNSEC_RWXMAP_LOG
+	bool 'Denied RWX mmap/mprotect logging'
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on PAX_MPROTECT && !PAX_EMUPLT && !PAX_EMUSIGRT
+	help
+	  If you say Y here, calls to mmap() and mprotect() with explicit
+	  usage of PROT_WRITE and PROT_EXEC together will be logged when
+	  denied by the PAX_MPROTECT feature.  If the sysctl option is
+	  enabled, a sysctl option with name "rwxmap_logging" is created.
+
+config GRKERNSEC_AUDIT_TEXTREL
+	bool 'ELF text relocations logging (READ HELP)'
+	depends on PAX_MPROTECT
+	help
+	  If you say Y here, text relocations will be logged with the filename
+	  of the offending library or binary.  The purpose of the feature is
+	  to help Linux distribution developers get rid of libraries and
+	  binaries that need text relocations which hinder the future progress
+	  of PaX.  Only Linux distribution developers should say Y here, and
+	  never on a production machine, as this option creates an information
+	  leak that could aid an attacker in defeating the randomization of
+	  a single memory region.  If the sysctl option is enabled, a sysctl
+	  option with name "audit_textrel" is created.
+
+endmenu
+
+menu "Executable Protections"
+depends on GRKERNSEC
+
+config GRKERNSEC_DMESG
+	bool "Dmesg(8) restriction"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, non-root users will not be able to use dmesg(8)
+	  to view the contents of the kernel's circular log buffer.
+	  The kernel's log buffer often contains kernel addresses and other
+	  identifying information useful to an attacker in fingerprinting a
+	  system for a targeted exploit.
+	  If the sysctl option is enabled, a sysctl option with name "dmesg" is
+	  created.
+
+config GRKERNSEC_HARDEN_PTRACE
+	bool "Deter ptrace-based process snooping"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, TTY sniffers and other malicious monitoring
+	  programs implemented through ptrace will be defeated.  If you
+	  have been using the RBAC system, this option has already been
+	  enabled for several years for all users, with the ability to make
+	  fine-grained exceptions.
+
+	  This option only affects the ability of non-root users to ptrace
+	  processes that are not a descendent of the ptracing process.
+	  This means that strace ./binary and gdb ./binary will still work,
+	  but attaching to arbitrary processes will not.  If the sysctl
+	  option is enabled, a sysctl option with name "harden_ptrace" is
+	  created.
+
+config GRKERNSEC_PTRACE_READEXEC
+	bool "Require read access to ptrace sensitive binaries"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, unprivileged users will not be able to ptrace unreadable
+	  binaries.  This option is useful in environments that
+	  remove the read bits (e.g. file mode 4711) from suid binaries to
+	  prevent infoleaking of their contents.  This option adds
+	  consistency to the use of that file mode, as the binary could normally
+	  be read out when run without privileges while ptracing.
+
+	  If the sysctl option is enabled, a sysctl option with name "ptrace_readexec"
+	  is created.
+
+config GRKERNSEC_SETXID
+	bool "Enforce consistent multithreaded privileges"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on (X86 || SPARC64 || PPC || ARM || MIPS)
+	help
+	  If you say Y here, a change from a root uid to a non-root uid
+	  in a multithreaded application will cause the resulting uids,
+	  gids, supplementary groups, and capabilities in that thread
+	  to be propagated to the other threads of the process.  In most
+	  cases this is unnecessary, as glibc will emulate this behavior
+	  on behalf of the application.  Other libcs do not act in the
+	  same way, allowing the other threads of the process to continue
+	  running with root privileges.  If the sysctl option is enabled,
+	  a sysctl option with name "consistent_setxid" is created.
+
+config GRKERNSEC_TPE
+	bool "Trusted Path Execution (TPE)"
+	default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
+	help
+	  If you say Y here, you will be able to choose a gid to add to the
+	  supplementary groups of users you want to mark as "untrusted."
+	  These users will not be able to execute any files that are not in
+	  root-owned directories writable only by root.  If the sysctl option
+	  is enabled, a sysctl option with name "tpe" is created.
+
+config GRKERNSEC_TPE_ALL
+	bool "Partially restrict all non-root users"
+	depends on GRKERNSEC_TPE
+	help
+	  If you say Y here, all non-root users will be covered under
+	  a weaker TPE restriction.  This is separate from, and in addition to,
+	  the main TPE options that you have selected elsewhere.  Thus, if a
+	  "trusted" GID is chosen, this restriction applies to even that GID.
+	  Under this restriction, all non-root users will only be allowed to
+	  execute files in directories they own that are not group or
+	  world-writable, or in directories owned by root and writable only by
+	  root.  If the sysctl option is enabled, a sysctl option with name
+	  "tpe_restrict_all" is created.
+
+config GRKERNSEC_TPE_INVERT
+	bool "Invert GID option"
+	depends on GRKERNSEC_TPE
+	help
+	  If you say Y here, the group you specify in the TPE configuration will
+	  decide what group TPE restrictions will be *disabled* for.  This
+	  option is useful if you want TPE restrictions to be applied to most
+	  users on the system.  If the sysctl option is enabled, a sysctl option
+	  with name "tpe_invert" is created.  Unlike other sysctl options, this
+	  entry will default to on for backward-compatibility.
+
+config GRKERNSEC_TPE_GID
+	int
+	default GRKERNSEC_TPE_UNTRUSTED_GID if (GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT)
+	default GRKERNSEC_TPE_TRUSTED_GID if (GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT)
+	
+config GRKERNSEC_TPE_UNTRUSTED_GID
+	int "GID for TPE-untrusted users"
+	depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
+	default 1005
+	help
+	  Setting this GID determines what group TPE restrictions will be
+	  *enabled* for.  If the sysctl option is enabled, a sysctl option
+	  with name "tpe_gid" is created.
+
+config GRKERNSEC_TPE_TRUSTED_GID
+	int "GID for TPE-trusted users"
+	depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
+	default 1005
+	help
+	  Setting this GID determines what group TPE restrictions will be
+	  *disabled* for.  If the sysctl option is enabled, a sysctl option
+	  with name "tpe_gid" is created.
+
+endmenu
+menu "Network Protections"
+depends on GRKERNSEC
+
+config GRKERNSEC_RANDNET
+	bool "Larger entropy pools"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, the entropy pools used for many features of Linux
+	  and grsecurity will be doubled in size.  Since several grsecurity
+	  features use additional randomness, it is recommended that you say Y
+	  here.  Saying Y here has a similar effect as modifying
+	  /proc/sys/kernel/random/poolsize.
+
+config GRKERNSEC_BLACKHOLE
+	bool "TCP/UDP blackhole and LAST_ACK DoS prevention"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on NET
+	help
+	  If you say Y here, neither TCP resets nor ICMP
+	  destination-unreachable packets will be sent in response to packets
+	  sent to ports for which no associated listening process exists.
+	  This feature supports both IPV4 and IPV6 and exempts the 
+	  loopback interface from blackholing.  Enabling this feature 
+	  makes a host more resilient to DoS attacks and reduces network
+	  visibility against scanners.
+
+	  The blackhole feature as-implemented is equivalent to the FreeBSD
+	  blackhole feature, as it prevents RST responses to all packets, not
+	  just SYNs.  Under most application behavior this causes no
+	  problems, but applications (like haproxy) may not close certain
+	  connections in a way that cleanly terminates them on the remote
+	  end, leaving the remote host in LAST_ACK state.  Because of this
+	  side-effect and to prevent intentional LAST_ACK DoSes, this
+	  feature also adds automatic mitigation against such attacks.
+	  The mitigation drastically reduces the amount of time a socket
+	  can spend in LAST_ACK state.  If you're using haproxy and not
+	  all servers it connects to have this option enabled, consider
+	  disabling this feature on the haproxy host.
+
+	  If the sysctl option is enabled, two sysctl options with names
+	  "ip_blackhole" and "lastack_retries" will be created.
+	  While "ip_blackhole" takes the standard zero/non-zero on/off
+	  toggle, "lastack_retries" uses the same kinds of values as
+	  "tcp_retries1" and "tcp_retries2".  The default value of 4
+	  prevents a socket from lasting more than 45 seconds in LAST_ACK
+	  state.
+
+config GRKERNSEC_NO_SIMULT_CONNECT
+	bool "Disable TCP Simultaneous Connect"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on NET
+	help
+	  If you say Y here, a feature by Willy Tarreau will be enabled that
+	  removes a weakness in Linux's strict implementation of TCP that
+	  allows two clients to connect to each other without either entering
+	  a listening state.  The weakness allows an attacker to easily prevent
+	  a client from connecting to a known server provided the source port
+	  for the connection is guessed correctly.
+
+	  As the weakness could be used to prevent an antivirus or IPS from
+	  fetching updates, or prevent an SSL gateway from fetching a CRL,
+	  it should be eliminated by enabling this option.  Though Linux is
+	  one of few operating systems supporting simultaneous connect, it
+	  has no legitimate use in practice and is rarely supported by firewalls.
+	
+config GRKERNSEC_SOCKET
+	bool "Socket restrictions"
+	depends on NET
+	help
+	  If you say Y here, you will be able to choose from several options.
+	  If you assign a GID on your system and add it to the supplementary
+	  groups of users you want to restrict socket access to, this patch
+	  will perform up to three things, based on the option(s) you choose.
+
+config GRKERNSEC_SOCKET_ALL
+	bool "Deny any sockets to group"
+	depends on GRKERNSEC_SOCKET
+	help
+	  If you say Y here, you will be able to choose a GID of whose users will
+	  be unable to connect to other hosts from your machine or run server
+	  applications from your machine.  If the sysctl option is enabled, a
+	  sysctl option with name "socket_all" is created.
+
+config GRKERNSEC_SOCKET_ALL_GID
+	int "GID to deny all sockets for"
+	depends on GRKERNSEC_SOCKET_ALL
+	default 1004
+	help
+	  Here you can choose the GID to disable socket access for. Remember to
+	  add the users you want socket access disabled for to the GID
+	  specified here.  If the sysctl option is enabled, a sysctl option
+	  with name "socket_all_gid" is created.
+
+config GRKERNSEC_SOCKET_CLIENT
+	bool "Deny client sockets to group"
+	depends on GRKERNSEC_SOCKET
+	help
+	  If you say Y here, you will be able to choose a GID of whose users will
+	  be unable to connect to other hosts from your machine, but will be
+	  able to run servers.  If this option is enabled, all users in the group
+	  you specify will have to use passive mode when initiating ftp transfers
+	  from the shell on your machine.  If the sysctl option is enabled, a
+	  sysctl option with name "socket_client" is created.
+
+config GRKERNSEC_SOCKET_CLIENT_GID
+	int "GID to deny client sockets for"
+	depends on GRKERNSEC_SOCKET_CLIENT
+	default 1003
+	help
+	  Here you can choose the GID to disable client socket access for.
+	  Remember to add the users you want client socket access disabled for to
+	  the GID specified here.  If the sysctl option is enabled, a sysctl
+	  option with name "socket_client_gid" is created.
+
+config GRKERNSEC_SOCKET_SERVER
+	bool "Deny server sockets to group"
+	depends on GRKERNSEC_SOCKET
+	help
+	  If you say Y here, you will be able to choose a GID of whose users will
+	  be unable to run server applications from your machine.  If the sysctl
+	  option is enabled, a sysctl option with name "socket_server" is created.
+
+config GRKERNSEC_SOCKET_SERVER_GID
+	int "GID to deny server sockets for"
+	depends on GRKERNSEC_SOCKET_SERVER
+	default 1002
+	help
+	  Here you can choose the GID to disable server socket access for.
+	  Remember to add the users you want server socket access disabled for to
+	  the GID specified here.  If the sysctl option is enabled, a sysctl
+	  option with name "socket_server_gid" is created.
+
+endmenu
+menu "Sysctl Support"
+depends on GRKERNSEC && SYSCTL
+
+config GRKERNSEC_SYSCTL
+	bool "Sysctl support"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, you will be able to change the options that
+	  grsecurity runs with at bootup, without having to recompile your
+	  kernel.  You can echo values to files in /proc/sys/kernel/grsecurity
+	  to enable (1) or disable (0) various features.  All the sysctl entries
+	  are mutable until the "grsec_lock" entry is set to a non-zero value.
+	  All features enabled in the kernel configuration are disabled at boot
+	  if you do not say Y to the "Turn on features by default" option.
+	  All options should be set at startup, and the grsec_lock entry should
+	  be set to a non-zero value after all the options are set.
+	  *THIS IS EXTREMELY IMPORTANT*
+
+config GRKERNSEC_SYSCTL_DISTRO
+	bool "Extra sysctl support for distro makers (READ HELP)"
+	depends on GRKERNSEC_SYSCTL && GRKERNSEC_IO
+	help
+	  If you say Y here, additional sysctl options will be created
+	  for features that affect processes running as root.  Therefore,
+	  it is critical when using this option that the grsec_lock entry be
+	  enabled after boot.  Only distros with prebuilt kernel packages
+	  with this option enabled that can ensure grsec_lock is enabled
+	  after boot should use this option.
+	  *Failure to set grsec_lock after boot makes all grsec features
+	  this option covers useless*
+
+	  Currently this option creates the following sysctl entries:
+	  "Disable Privileged I/O": "disable_priv_io"	
+
+config GRKERNSEC_SYSCTL_ON
+	bool "Turn on features by default"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_SYSCTL
+	help
+	  If you say Y here, instead of having all features enabled in the
+	  kernel configuration disabled at boot time, the features will be
+	  enabled at boot time.  It is recommended you say Y here unless
+	  there is some reason you would want all sysctl-tunable features to
+	  be disabled by default.  As mentioned elsewhere, it is important
+	  to enable the grsec_lock entry once you have finished modifying
+	  the sysctl entries.
+
+endmenu
+menu "Logging Options"
+depends on GRKERNSEC
+
+config GRKERNSEC_FLOODTIME
+	int "Seconds in between log messages (minimum)"
+	default 10
+	help
+	  This option allows you to enforce the number of seconds between
+	  grsecurity log messages.  The default should be suitable for most
+	  people, however, if you choose to change it, choose a value small enough
+	  to allow informative logs to be produced, but large enough to
+	  prevent flooding.
+
+config GRKERNSEC_FLOODBURST
+	int "Number of messages in a burst (maximum)"
+	default 6
+	help
+	  This option allows you to choose the maximum number of messages allowed
+	  within the flood time interval you chose in a separate option.  The
+	  default should be suitable for most people, however if you find that
+	  many of your logs are being interpreted as flooding, you may want to
+	  raise this value.
+
+endmenu
diff --git a/grsecurity/Makefile b/grsecurity/Makefile
new file mode 100644
index 0000000..1b9afa9
--- /dev/null
+++ b/grsecurity/Makefile
@@ -0,0 +1,38 @@
+# grsecurity's ACL system was originally written in 2001 by Michael Dalton
+# during 2001-2009 it has been completely redesigned by Brad Spengler
+# into an RBAC system
+#
+# All code in this directory and various hooks inserted throughout the kernel
+# are copyright Brad Spengler - Open Source Security, Inc., and released 
+# under the GPL v2 or higher
+
+KBUILD_CFLAGS += -Werror
+
+obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \
+	grsec_mount.o grsec_sig.o grsec_sysctl.o \
+	grsec_time.o grsec_tpe.o grsec_link.o grsec_pax.o grsec_ptrace.o
+
+obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_segv.o \
+	gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \
+	gracl_learn.o grsec_log.o
+obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o
+
+ifdef CONFIG_NET
+obj-y += grsec_sock.o
+obj-$(CONFIG_GRKERNSEC) += gracl_ip.o
+endif
+
+ifndef CONFIG_GRKERNSEC
+obj-y += grsec_disabled.o
+endif
+
+ifdef CONFIG_GRKERNSEC_HIDESYM
+extra-y := grsec_hidesym.o
+$(obj)/grsec_hidesym.o:
+	@-chmod -f 500 /boot
+	@-chmod -f 500 /lib/modules
+	@-chmod -f 500 /lib64/modules
+	@-chmod -f 500 /lib32/modules
+	@-chmod -f 700 .
+	@echo '  grsec: protected kernel image paths'
+endif
diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c
new file mode 100644
index 0000000..1248ee0
--- /dev/null
+++ b/grsecurity/gracl.c
@@ -0,0 +1,4073 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/namei.h>
+#include <linux/mount.h>
+#include <linux/tty.h>
+#include <linux/proc_fs.h>
+#include <linux/lglock.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/types.h>
+#include <linux/sysctl.h>
+#include <linux/netdevice.h>
+#include <linux/ptrace.h>
+#include <linux/gracl.h>
+#include <linux/gralloc.h>
+#include <linux/security.h>
+#include <linux/grinternal.h>
+#include <linux/pid_namespace.h>
+#include <linux/stop_machine.h>
+#include <linux/fdtable.h>
+#include <linux/percpu.h>
+#include <linux/lglock.h>
+#include <linux/hugetlb.h>
+#include <linux/posix-timers.h>
+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
+#include <linux/magic.h>
+#include <linux/pagemap.h>
+#include "../fs/btrfs/async-thread.h"
+#include "../fs/btrfs/ctree.h"
+#include "../fs/btrfs/btrfs_inode.h"
+#endif
+#include "../fs/mount.h"
+
+#include <asm/uaccess.h>
+#include <asm/errno.h>
+#include <asm/mman.h>
+
+extern struct lglock vfsmount_lock;
+
+static struct acl_role_db acl_role_set;
+static struct name_db name_set;
+static struct inodev_db inodev_set;
+
+/* for keeping track of userspace pointers used for subjects, so we
+   can share references in the kernel as well
+*/
+
+static struct path real_root;
+
+static struct acl_subj_map_db subj_map_set;
+
+static struct acl_role_label *default_role;
+
+static struct acl_role_label *role_list;
+
+static u16 acl_sp_role_value;
+
+extern char *gr_shared_page[4];
+static DEFINE_MUTEX(gr_dev_mutex);
+DEFINE_RWLOCK(gr_inode_lock);
+
+struct gr_arg *gr_usermode;
+
+static unsigned int gr_status __read_only = GR_STATUS_INIT;
+
+extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum);
+extern void gr_clear_learn_entries(void);
+
+unsigned char *gr_system_salt;
+unsigned char *gr_system_sum;
+
+static struct sprole_pw **acl_special_roles = NULL;
+static __u16 num_sprole_pws = 0;
+
+static struct acl_role_label *kernel_role = NULL;
+
+static unsigned int gr_auth_attempts = 0;
+static unsigned long gr_auth_expires = 0UL;
+
+#ifdef CONFIG_NET
+extern struct vfsmount *sock_mnt;
+#endif
+
+extern struct vfsmount *pipe_mnt;
+extern struct vfsmount *shm_mnt;
+
+#ifdef CONFIG_HUGETLBFS
+extern struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
+#endif
+
+static struct acl_object_label *fakefs_obj_rw;
+static struct acl_object_label *fakefs_obj_rwx;
+
+extern int gr_init_uidset(void);
+extern void gr_free_uidset(void);
+extern void gr_remove_uid(uid_t uid);
+extern int gr_find_uid(uid_t uid);
+
+__inline__ int
+gr_acl_is_enabled(void)
+{
+	return (gr_status & GR_READY);
+}
+
+static inline dev_t __get_dev(const struct dentry *dentry)
+{
+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
+	if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
+		return BTRFS_I(dentry->d_inode)->root->anon_dev;
+	else
+#endif
+		return dentry->d_sb->s_dev;
+}
+
+dev_t gr_get_dev_from_dentry(struct dentry *dentry)
+{
+	return __get_dev(dentry);
+}
+
+static char gr_task_roletype_to_char(struct task_struct *task)
+{
+	switch (task->role->roletype &
+		(GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP |
+		 GR_ROLE_SPECIAL)) {
+	case GR_ROLE_DEFAULT:
+		return 'D';
+	case GR_ROLE_USER:
+		return 'U';
+	case GR_ROLE_GROUP:
+		return 'G';
+	case GR_ROLE_SPECIAL:
+		return 'S';
+	}
+
+	return 'X';
+}
+
+char gr_roletype_to_char(void)
+{
+	return gr_task_roletype_to_char(current);
+}
+
+__inline__ int
+gr_acl_tpe_check(void)
+{
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+	if (current->role->roletype & GR_ROLE_TPE)
+		return 1;
+	else
+		return 0;
+}
+
+int
+gr_handle_rawio(const struct inode *inode)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	if (inode && S_ISBLK(inode->i_mode) &&
+	    grsec_enable_chroot_caps && proc_is_chrooted(current) &&
+	    !capable(CAP_SYS_RAWIO))
+		return 1;
+#endif
+	return 0;
+}
+
+static int
+gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb)
+{
+	if (likely(lena != lenb))
+		return 0;
+
+	return !memcmp(a, b, lena);
+}
+
+static int prepend(char **buffer, int *buflen, const char *str, int namelen)
+{
+	*buflen -= namelen;
+	if (*buflen < 0)
+		return -ENAMETOOLONG;
+	*buffer -= namelen;
+	memcpy(*buffer, str, namelen);
+	return 0;
+}
+
+static int prepend_name(char **buffer, int *buflen, struct qstr *name)
+{
+	return prepend(buffer, buflen, name->name, name->len);
+}
+
+static int prepend_path(const struct path *path, struct path *root,
+			char **buffer, int *buflen)
+{
+	struct dentry *dentry = path->dentry;
+	struct vfsmount *vfsmnt = path->mnt;
+	struct mount *mnt = real_mount(vfsmnt);
+	bool slash = false;
+	int error = 0;
+
+	while (dentry != root->dentry || vfsmnt != root->mnt) {
+		struct dentry * parent;
+
+		if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
+			/* Global root? */
+			if (!mnt_has_parent(mnt)) {
+				goto out;
+			}
+			dentry = mnt->mnt_mountpoint;
+			mnt = mnt->mnt_parent;
+			vfsmnt = &mnt->mnt;
+			continue;
+		}
+		parent = dentry->d_parent;
+		prefetch(parent);
+		spin_lock(&dentry->d_lock);
+		error = prepend_name(buffer, buflen, &dentry->d_name);
+		spin_unlock(&dentry->d_lock);
+		if (!error)
+			error = prepend(buffer, buflen, "/", 1);
+		if (error)
+			break;
+
+		slash = true;
+		dentry = parent;
+	}
+
+out:
+	if (!error && !slash)
+		error = prepend(buffer, buflen, "/", 1);
+
+	return error;
+}
+
+/* this must be called with vfsmount_lock and rename_lock held */
+
+static char *__our_d_path(const struct path *path, struct path *root,
+			char *buf, int buflen)
+{
+	char *res = buf + buflen;
+	int error;
+
+	prepend(&res, &buflen, "\0", 1);
+	error = prepend_path(path, root, &res, &buflen);
+	if (error)
+		return ERR_PTR(error);
+
+	return res;
+}
+
+static char *
+gen_full_path(struct path *path, struct path *root, char *buf, int buflen)
+{
+	char *retval;
+
+	retval = __our_d_path(path, root, buf, buflen);
+	if (unlikely(IS_ERR(retval)))
+		retval = strcpy(buf, "<path too long>");
+	else if (unlikely(retval[1] == '/' && retval[2] == '\0'))
+		retval[1] = '\0';
+
+	return retval;
+}
+
+static char *
+__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
+		char *buf, int buflen)
+{
+	struct path path;
+	char *res;
+
+	path.dentry = (struct dentry *)dentry;
+	path.mnt = (struct vfsmount *)vfsmnt;
+
+	/* we can use real_root.dentry, real_root.mnt, because this is only called
+	   by the RBAC system */
+	res = gen_full_path(&path, &real_root, buf, buflen);
+
+	return res;
+}
+
+static char *
+d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
+	    char *buf, int buflen)
+{
+	char *res;
+	struct path path;
+	struct path root;
+	struct task_struct *reaper = init_pid_ns.child_reaper;
+
+	path.dentry = (struct dentry *)dentry;
+	path.mnt = (struct vfsmount *)vfsmnt;
+
+	/* we can't use real_root.dentry, real_root.mnt, because they belong only to the RBAC system */
+	get_fs_root(reaper->fs, &root);
+
+	br_read_lock(&vfsmount_lock);
+	write_seqlock(&rename_lock);
+	res = gen_full_path(&path, &root, buf, buflen);
+	write_sequnlock(&rename_lock);
+	br_read_unlock(&vfsmount_lock);
+
+	path_put(&root);
+	return res;
+}
+
+static char *
+gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	char *ret;
+	br_read_lock(&vfsmount_lock);
+	write_seqlock(&rename_lock);
+	ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
+			     PAGE_SIZE);
+	write_sequnlock(&rename_lock);
+	br_read_unlock(&vfsmount_lock);
+	return ret;
+}
+
+static char *
+gr_to_proc_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	char *ret;
+	char *buf;
+	int buflen;
+
+	br_read_lock(&vfsmount_lock);
+	write_seqlock(&rename_lock);
+	buf = per_cpu_ptr(gr_shared_page[0], smp_processor_id());
+	ret = __d_real_path(dentry, mnt, buf, PAGE_SIZE - 6);
+	buflen = (int)(ret - buf);
+	if (buflen >= 5)
+		prepend(&ret, &buflen, "/proc", 5);
+	else
+		ret = strcpy(buf, "<path too long>");
+	write_sequnlock(&rename_lock);
+	br_read_unlock(&vfsmount_lock);
+	return ret;
+}
+
+char *
+gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
+			     PAGE_SIZE);
+}
+
+char *
+gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
+			   PAGE_SIZE);
+}
+
+char *
+gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()),
+			   PAGE_SIZE);
+}
+
+char *
+gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()),
+			   PAGE_SIZE);
+}
+
+char *
+gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()),
+			   PAGE_SIZE);
+}
+
+__inline__ __u32
+to_gr_audit(const __u32 reqmode)
+{
+	/* masks off auditable permission flags, then shifts them to create
+	   auditing flags, and adds the special case of append auditing if
+	   we're requesting write */
+	return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0));
+}
+
+struct acl_subject_label *
+lookup_subject_map(const struct acl_subject_label *userp)
+{
+	unsigned int index = gr_shash(userp, subj_map_set.s_size);
+	struct subject_map *match;
+
+	match = subj_map_set.s_hash[index];
+
+	while (match && match->user != userp)
+		match = match->next;
+
+	if (match != NULL)
+		return match->kernel;
+	else
+		return NULL;
+}
+
+static void
+insert_subj_map_entry(struct subject_map *subjmap)
+{
+	unsigned int index = gr_shash(subjmap->user, subj_map_set.s_size);
+	struct subject_map **curr;
+
+	subjmap->prev = NULL;
+
+	curr = &subj_map_set.s_hash[index];
+	if (*curr != NULL)
+		(*curr)->prev = subjmap;
+
+	subjmap->next = *curr;
+	*curr = subjmap;
+
+	return;
+}
+
+static struct acl_role_label *
+lookup_acl_role_label(const struct task_struct *task, const uid_t uid,
+		      const gid_t gid)
+{
+	unsigned int index = gr_rhash(uid, GR_ROLE_USER, acl_role_set.r_size);
+	struct acl_role_label *match;
+	struct role_allowed_ip *ipp;
+	unsigned int x;
+	u32 curr_ip = task->signal->curr_ip;
+
+	task->signal->saved_ip = curr_ip;
+
+	match = acl_role_set.r_hash[index];
+
+	while (match) {
+		if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) {
+			for (x = 0; x < match->domain_child_num; x++) {
+				if (match->domain_children[x] == uid)
+					goto found;
+			}
+		} else if (match->uidgid == uid && match->roletype & GR_ROLE_USER)
+			break;
+		match = match->next;
+	}
+found:
+	if (match == NULL) {
+	      try_group:
+		index = gr_rhash(gid, GR_ROLE_GROUP, acl_role_set.r_size);
+		match = acl_role_set.r_hash[index];
+
+		while (match) {
+			if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) {
+				for (x = 0; x < match->domain_child_num; x++) {
+					if (match->domain_children[x] == gid)
+						goto found2;
+				}
+			} else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP)
+				break;
+			match = match->next;
+		}
+found2:
+		if (match == NULL)
+			match = default_role;
+		if (match->allowed_ips == NULL)
+			return match;
+		else {
+			for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
+				if (likely
+				    ((ntohl(curr_ip) & ipp->netmask) ==
+				     (ntohl(ipp->addr) & ipp->netmask)))
+					return match;
+			}
+			match = default_role;
+		}
+	} else if (match->allowed_ips == NULL) {
+		return match;
+	} else {
+		for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
+			if (likely
+			    ((ntohl(curr_ip) & ipp->netmask) ==
+			     (ntohl(ipp->addr) & ipp->netmask)))
+				return match;
+		}
+		goto try_group;
+	}
+
+	return match;
+}
+
+struct acl_subject_label *
+lookup_acl_subj_label(const ino_t ino, const dev_t dev,
+		      const struct acl_role_label *role)
+{
+	unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
+	struct acl_subject_label *match;
+
+	match = role->subj_hash[index];
+
+	while (match && (match->inode != ino || match->device != dev ||
+	       (match->mode & GR_DELETED))) {
+		match = match->next;
+	}
+
+	if (match && !(match->mode & GR_DELETED))
+		return match;
+	else
+		return NULL;
+}
+
+struct acl_subject_label *
+lookup_acl_subj_label_deleted(const ino_t ino, const dev_t dev,
+			  const struct acl_role_label *role)
+{
+	unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
+	struct acl_subject_label *match;
+
+	match = role->subj_hash[index];
+
+	while (match && (match->inode != ino || match->device != dev ||
+	       !(match->mode & GR_DELETED))) {
+		match = match->next;
+	}
+
+	if (match && (match->mode & GR_DELETED))
+		return match;
+	else
+		return NULL;
+}
+
+static struct acl_object_label *
+lookup_acl_obj_label(const ino_t ino, const dev_t dev,
+		     const struct acl_subject_label *subj)
+{
+	unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
+	struct acl_object_label *match;
+
+	match = subj->obj_hash[index];
+
+	while (match && (match->inode != ino || match->device != dev ||
+	       (match->mode & GR_DELETED))) {
+		match = match->next;
+	}
+
+	if (match && !(match->mode & GR_DELETED))
+		return match;
+	else
+		return NULL;
+}
+
+static struct acl_object_label *
+lookup_acl_obj_label_create(const ino_t ino, const dev_t dev,
+		     const struct acl_subject_label *subj)
+{
+	unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
+	struct acl_object_label *match;
+
+	match = subj->obj_hash[index];
+
+	while (match && (match->inode != ino || match->device != dev ||
+	       !(match->mode & GR_DELETED))) {
+		match = match->next;
+	}
+
+	if (match && (match->mode & GR_DELETED))
+		return match;
+
+	match = subj->obj_hash[index];
+
+	while (match && (match->inode != ino || match->device != dev ||
+	       (match->mode & GR_DELETED))) {
+		match = match->next;
+	}
+
+	if (match && !(match->mode & GR_DELETED))
+		return match;
+	else
+		return NULL;
+}
+
+static struct name_entry *
+lookup_name_entry(const char *name)
+{
+	unsigned int len = strlen(name);
+	unsigned int key = full_name_hash(name, len);
+	unsigned int index = key % name_set.n_size;
+	struct name_entry *match;
+
+	match = name_set.n_hash[index];
+
+	while (match && (match->key != key || !gr_streq(match->name, name, match->len, len)))
+		match = match->next;
+
+	return match;
+}
+
+static struct name_entry *
+lookup_name_entry_create(const char *name)
+{
+	unsigned int len = strlen(name);
+	unsigned int key = full_name_hash(name, len);
+	unsigned int index = key % name_set.n_size;
+	struct name_entry *match;
+
+	match = name_set.n_hash[index];
+
+	while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
+			 !match->deleted))
+		match = match->next;
+
+	if (match && match->deleted)
+		return match;
+
+	match = name_set.n_hash[index];
+
+	while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
+			 match->deleted))
+		match = match->next;
+
+	if (match && !match->deleted)
+		return match;
+	else
+		return NULL;
+}
+
+static struct inodev_entry *
+lookup_inodev_entry(const ino_t ino, const dev_t dev)
+{
+	unsigned int index = gr_fhash(ino, dev, inodev_set.i_size);
+	struct inodev_entry *match;
+
+	match = inodev_set.i_hash[index];
+
+	while (match && (match->nentry->inode != ino || match->nentry->device != dev))
+		match = match->next;
+
+	return match;
+}
+
+static void
+insert_inodev_entry(struct inodev_entry *entry)
+{
+	unsigned int index = gr_fhash(entry->nentry->inode, entry->nentry->device,
+				    inodev_set.i_size);
+	struct inodev_entry **curr;
+
+	entry->prev = NULL;
+
+	curr = &inodev_set.i_hash[index];
+	if (*curr != NULL)
+		(*curr)->prev = entry;
+	
+	entry->next = *curr;
+	*curr = entry;
+
+	return;
+}
+
+static void
+__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid)
+{
+	unsigned int index =
+	    gr_rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), acl_role_set.r_size);
+	struct acl_role_label **curr;
+	struct acl_role_label *tmp, *tmp2;
+
+	curr = &acl_role_set.r_hash[index];
+
+	/* simple case, slot is empty, just set it to our role */
+	if (*curr == NULL) {
+		*curr = role;
+	} else {
+		/* example:
+		   1 -> 2 -> 3 (adding 2 -> 3 to here)
+		   2 -> 3
+		*/
+		/* first check to see if we can already be reached via this slot */
+		tmp = *curr;
+		while (tmp && tmp != role)
+			tmp = tmp->next;
+		if (tmp == role) {
+			/* we don't need to add ourselves to this slot's chain */
+			return;
+		}
+		/* we need to add ourselves to this chain, two cases */
+		if (role->next == NULL) {
+			/* simple case, append the current chain to our role */
+			role->next = *curr;
+			*curr = role;
+		} else {
+			/* 1 -> 2 -> 3 -> 4
+			   2 -> 3 -> 4
+			   3 -> 4 (adding 1 -> 2 -> 3 -> 4 to here)
+			*/			   
+			/* trickier case: walk our role's chain until we find
+			   the role for the start of the current slot's chain */
+			tmp = role;
+			tmp2 = *curr;
+			while (tmp->next && tmp->next != tmp2)
+				tmp = tmp->next;
+			if (tmp->next == tmp2) {
+				/* from example above, we found 3, so just
+				   replace this slot's chain with ours */
+				*curr = role;
+			} else {
+				/* we didn't find a subset of our role's chain
+				   in the current slot's chain, so append their
+				   chain to ours, and set us as the first role in
+				   the slot's chain
+
+				   we could fold this case with the case above,
+				   but making it explicit for clarity
+				*/
+				tmp->next = tmp2;
+				*curr = role;
+			}
+		}
+	}
+
+	return;
+}
+
+static void
+insert_acl_role_label(struct acl_role_label *role)
+{
+	int i;
+
+	if (role_list == NULL) {
+		role_list = role;
+		role->prev = NULL;
+	} else {
+		role->prev = role_list;
+		role_list = role;
+	}
+	
+	/* used for hash chains */
+	role->next = NULL;
+
+	if (role->roletype & GR_ROLE_DOMAIN) {
+		for (i = 0; i < role->domain_child_num; i++)
+			__insert_acl_role_label(role, role->domain_children[i]);
+	} else
+		__insert_acl_role_label(role, role->uidgid);
+}
+					
+static int
+insert_name_entry(char *name, const ino_t inode, const dev_t device, __u8 deleted)
+{
+	struct name_entry **curr, *nentry;
+	struct inodev_entry *ientry;
+	unsigned int len = strlen(name);
+	unsigned int key = full_name_hash(name, len);
+	unsigned int index = key % name_set.n_size;
+
+	curr = &name_set.n_hash[index];
+
+	while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len)))
+		curr = &((*curr)->next);
+
+	if (*curr != NULL)
+		return 1;
+
+	nentry = acl_alloc(sizeof (struct name_entry));
+	if (nentry == NULL)
+		return 0;
+	ientry = acl_alloc(sizeof (struct inodev_entry));
+	if (ientry == NULL)
+		return 0;
+	ientry->nentry = nentry;
+
+	nentry->key = key;
+	nentry->name = name;
+	nentry->inode = inode;
+	nentry->device = device;
+	nentry->len = len;
+	nentry->deleted = deleted;
+
+	nentry->prev = NULL;
+	curr = &name_set.n_hash[index];
+	if (*curr != NULL)
+		(*curr)->prev = nentry;
+	nentry->next = *curr;
+	*curr = nentry;
+
+	/* insert us into the table searchable by inode/dev */
+	insert_inodev_entry(ientry);
+
+	return 1;
+}
+
+static void
+insert_acl_obj_label(struct acl_object_label *obj,
+		     struct acl_subject_label *subj)
+{
+	unsigned int index =
+	    gr_fhash(obj->inode, obj->device, subj->obj_hash_size);
+	struct acl_object_label **curr;
+
+	
+	obj->prev = NULL;
+
+	curr = &subj->obj_hash[index];
+	if (*curr != NULL)
+		(*curr)->prev = obj;
+
+	obj->next = *curr;
+	*curr = obj;
+
+	return;
+}
+
+static void
+insert_acl_subj_label(struct acl_subject_label *obj,
+		      struct acl_role_label *role)
+{
+	unsigned int index = gr_fhash(obj->inode, obj->device, role->subj_hash_size);
+	struct acl_subject_label **curr;
+
+	obj->prev = NULL;
+
+	curr = &role->subj_hash[index];
+	if (*curr != NULL)
+		(*curr)->prev = obj;
+
+	obj->next = *curr;
+	*curr = obj;
+
+	return;
+}
+
+/* allocating chained hash tables, so optimal size is where lambda ~ 1 */
+
+static void *
+create_table(__u32 * len, int elementsize)
+{
+	unsigned int table_sizes[] = {
+		7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381,
+		32749, 65521, 131071, 262139, 524287, 1048573, 2097143,
+		4194301, 8388593, 16777213, 33554393, 67108859
+	};
+	void *newtable = NULL;
+	unsigned int pwr = 0;
+
+	while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) &&
+	       table_sizes[pwr] <= *len)
+		pwr++;
+
+	if (table_sizes[pwr] <= *len || (table_sizes[pwr] > ULONG_MAX / elementsize))
+		return newtable;
+
+	if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE)
+		newtable =
+		    kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL);
+	else
+		newtable = vmalloc(table_sizes[pwr] * elementsize);
+
+	*len = table_sizes[pwr];
+
+	return newtable;
+}
+
+static int
+init_variables(const struct gr_arg *arg)
+{
+	struct task_struct *reaper = init_pid_ns.child_reaper;
+	unsigned int stacksize;
+
+	subj_map_set.s_size = arg->role_db.num_subjects;
+	acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children;
+	name_set.n_size = arg->role_db.num_objects;
+	inodev_set.i_size = arg->role_db.num_objects;
+
+	if (!subj_map_set.s_size || !acl_role_set.r_size ||
+	    !name_set.n_size || !inodev_set.i_size)
+		return 1;
+
+	if (!gr_init_uidset())
+		return 1;
+
+	/* set up the stack that holds allocation info */
+
+	stacksize = arg->role_db.num_pointers + 5;
+
+	if (!acl_alloc_stack_init(stacksize))
+		return 1;
+
+	/* grab reference for the real root dentry and vfsmount */
+	get_fs_root(reaper->fs, &real_root);
+	
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+	printk(KERN_ALERT "Obtained real root device=%d, inode=%lu\n", __get_dev(real_root.dentry), real_root.dentry->d_inode->i_ino);
+#endif
+
+	fakefs_obj_rw = acl_alloc(sizeof(struct acl_object_label));
+	if (fakefs_obj_rw == NULL)
+		return 1;
+	fakefs_obj_rw->mode = GR_FIND | GR_READ | GR_WRITE;
+
+	fakefs_obj_rwx = acl_alloc(sizeof(struct acl_object_label));
+	if (fakefs_obj_rwx == NULL)
+		return 1;
+	fakefs_obj_rwx->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC;
+
+	subj_map_set.s_hash =
+	    (struct subject_map **) create_table(&subj_map_set.s_size, sizeof(void *));
+	acl_role_set.r_hash =
+	    (struct acl_role_label **) create_table(&acl_role_set.r_size, sizeof(void *));
+	name_set.n_hash = (struct name_entry **) create_table(&name_set.n_size, sizeof(void *));
+	inodev_set.i_hash =
+	    (struct inodev_entry **) create_table(&inodev_set.i_size, sizeof(void *));
+
+	if (!subj_map_set.s_hash || !acl_role_set.r_hash ||
+	    !name_set.n_hash || !inodev_set.i_hash)
+		return 1;
+
+	memset(subj_map_set.s_hash, 0,
+	       sizeof(struct subject_map *) * subj_map_set.s_size);
+	memset(acl_role_set.r_hash, 0,
+	       sizeof (struct acl_role_label *) * acl_role_set.r_size);
+	memset(name_set.n_hash, 0,
+	       sizeof (struct name_entry *) * name_set.n_size);
+	memset(inodev_set.i_hash, 0,
+	       sizeof (struct inodev_entry *) * inodev_set.i_size);
+
+	return 0;
+}
+
+/* free information not needed after startup
+   currently contains user->kernel pointer mappings for subjects
+*/
+
+static void
+free_init_variables(void)
+{
+	__u32 i;
+
+	if (subj_map_set.s_hash) {
+		for (i = 0; i < subj_map_set.s_size; i++) {
+			if (subj_map_set.s_hash[i]) {
+				kfree(subj_map_set.s_hash[i]);
+				subj_map_set.s_hash[i] = NULL;
+			}
+		}
+
+		if ((subj_map_set.s_size * sizeof (struct subject_map *)) <=
+		    PAGE_SIZE)
+			kfree(subj_map_set.s_hash);
+		else
+			vfree(subj_map_set.s_hash);
+	}
+
+	return;
+}
+
+static void
+free_variables(void)
+{
+	struct acl_subject_label *s;
+	struct acl_role_label *r;
+	struct task_struct *task, *task2;
+	unsigned int x;
+
+	gr_clear_learn_entries();
+
+	read_lock(&tasklist_lock);
+	do_each_thread(task2, task) {
+		task->acl_sp_role = 0;
+		task->acl_role_id = 0;
+		task->acl = NULL;
+		task->role = NULL;
+	} while_each_thread(task2, task);
+	read_unlock(&tasklist_lock);
+
+	/* release the reference to the real root dentry and vfsmount */
+	path_put(&real_root);
+	memset(&real_root, 0, sizeof(real_root));
+
+	/* free all object hash tables */
+
+	FOR_EACH_ROLE_START(r)
+		if (r->subj_hash == NULL)
+			goto next_role;
+		FOR_EACH_SUBJECT_START(r, s, x)
+			if (s->obj_hash == NULL)
+				break;
+			if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
+				kfree(s->obj_hash);
+			else
+				vfree(s->obj_hash);
+		FOR_EACH_SUBJECT_END(s, x)
+		FOR_EACH_NESTED_SUBJECT_START(r, s)
+			if (s->obj_hash == NULL)
+				break;
+			if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
+				kfree(s->obj_hash);
+			else
+				vfree(s->obj_hash);
+		FOR_EACH_NESTED_SUBJECT_END(s)
+		if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE)
+			kfree(r->subj_hash);
+		else
+			vfree(r->subj_hash);
+		r->subj_hash = NULL;
+next_role:
+	FOR_EACH_ROLE_END(r)
+
+	acl_free_all();
+
+	if (acl_role_set.r_hash) {
+		if ((acl_role_set.r_size * sizeof (struct acl_role_label *)) <=
+		    PAGE_SIZE)
+			kfree(acl_role_set.r_hash);
+		else
+			vfree(acl_role_set.r_hash);
+	}
+	if (name_set.n_hash) {
+		if ((name_set.n_size * sizeof (struct name_entry *)) <=
+		    PAGE_SIZE)
+			kfree(name_set.n_hash);
+		else
+			vfree(name_set.n_hash);
+	}
+
+	if (inodev_set.i_hash) {
+		if ((inodev_set.i_size * sizeof (struct inodev_entry *)) <=
+		    PAGE_SIZE)
+			kfree(inodev_set.i_hash);
+		else
+			vfree(inodev_set.i_hash);
+	}
+
+	gr_free_uidset();
+
+	memset(&name_set, 0, sizeof (struct name_db));
+	memset(&inodev_set, 0, sizeof (struct inodev_db));
+	memset(&acl_role_set, 0, sizeof (struct acl_role_db));
+	memset(&subj_map_set, 0, sizeof (struct acl_subj_map_db));
+
+	default_role = NULL;
+	kernel_role = NULL;
+	role_list = NULL;
+
+	return;
+}
+
+static __u32
+count_user_objs(struct acl_object_label *userp)
+{
+	struct acl_object_label o_tmp;
+	__u32 num = 0;
+
+	while (userp) {
+		if (copy_from_user(&o_tmp, userp,
+				   sizeof (struct acl_object_label)))
+			break;
+
+		userp = o_tmp.prev;
+		num++;
+	}
+
+	return num;
+}
+
+static struct acl_subject_label *
+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied);
+
+static int
+copy_user_glob(struct acl_object_label *obj)
+{
+	struct acl_object_label *g_tmp, **guser;
+	unsigned int len;
+	char *tmp;
+
+	if (obj->globbed == NULL)
+		return 0;
+
+	guser = &obj->globbed;
+	while (*guser) {
+		g_tmp = (struct acl_object_label *)
+			acl_alloc(sizeof (struct acl_object_label));
+		if (g_tmp == NULL)
+			return -ENOMEM;
+
+		if (copy_from_user(g_tmp, *guser,
+				   sizeof (struct acl_object_label)))
+			return -EFAULT;
+
+		len = strnlen_user(g_tmp->filename, PATH_MAX);
+
+		if (!len || len >= PATH_MAX)
+			return -EINVAL;
+
+		if ((tmp = (char *) acl_alloc(len)) == NULL)
+			return -ENOMEM;
+
+		if (copy_from_user(tmp, g_tmp->filename, len))
+			return -EFAULT;
+		tmp[len-1] = '\0';
+		g_tmp->filename = tmp;
+
+		*guser = g_tmp;
+		guser = &(g_tmp->next);
+	}
+
+	return 0;
+}
+
+static int
+copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj,
+	       struct acl_role_label *role)
+{
+	struct acl_object_label *o_tmp;
+	unsigned int len;
+	int ret;
+	char *tmp;
+
+	while (userp) {
+		if ((o_tmp = (struct acl_object_label *)
+		     acl_alloc(sizeof (struct acl_object_label))) == NULL)
+			return -ENOMEM;
+
+		if (copy_from_user(o_tmp, userp,
+				   sizeof (struct acl_object_label)))
+			return -EFAULT;
+
+		userp = o_tmp->prev;
+
+		len = strnlen_user(o_tmp->filename, PATH_MAX);
+
+		if (!len || len >= PATH_MAX)
+			return -EINVAL;
+
+		if ((tmp = (char *) acl_alloc(len)) == NULL)
+			return -ENOMEM;
+
+		if (copy_from_user(tmp, o_tmp->filename, len))
+			return -EFAULT;
+		tmp[len-1] = '\0';
+		o_tmp->filename = tmp;
+
+		insert_acl_obj_label(o_tmp, subj);
+		if (!insert_name_entry(o_tmp->filename, o_tmp->inode,
+				       o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0))
+			return -ENOMEM;
+
+		ret = copy_user_glob(o_tmp);
+		if (ret)
+			return ret;
+
+		if (o_tmp->nested) {
+			int already_copied;
+
+			o_tmp->nested = do_copy_user_subj(o_tmp->nested, role, &already_copied);
+			if (IS_ERR(o_tmp->nested))
+				return PTR_ERR(o_tmp->nested);
+
+			/* insert into nested subject list if we haven't copied this one yet
+			   to prevent duplicate entries */
+			if (!already_copied) {
+				o_tmp->nested->next = role->hash->first;
+				role->hash->first = o_tmp->nested;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static __u32
+count_user_subjs(struct acl_subject_label *userp)
+{
+	struct acl_subject_label s_tmp;
+	__u32 num = 0;
+
+	while (userp) {
+		if (copy_from_user(&s_tmp, userp,
+				   sizeof (struct acl_subject_label)))
+			break;
+
+		userp = s_tmp.prev;
+	}
+
+	return num;
+}
+
+static int
+copy_user_allowedips(struct acl_role_label *rolep)
+{
+	struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast;
+
+	ruserip = rolep->allowed_ips;
+
+	while (ruserip) {
+		rlast = rtmp;
+
+		if ((rtmp = (struct role_allowed_ip *)
+		     acl_alloc(sizeof (struct role_allowed_ip))) == NULL)
+			return -ENOMEM;
+
+		if (copy_from_user(rtmp, ruserip,
+				   sizeof (struct role_allowed_ip)))
+			return -EFAULT;
+
+		ruserip = rtmp->prev;
+
+		if (!rlast) {
+			rtmp->prev = NULL;
+			rolep->allowed_ips = rtmp;
+		} else {
+			rlast->next = rtmp;
+			rtmp->prev = rlast;
+		}
+
+		if (!ruserip)
+			rtmp->next = NULL;
+	}
+
+	return 0;
+}
+
+static int
+copy_user_transitions(struct acl_role_label *rolep)
+{
+	struct role_transition *rusertp, *rtmp = NULL, *rlast;
+	
+	unsigned int len;
+	char *tmp;
+
+	rusertp = rolep->transitions;
+
+	while (rusertp) {
+		rlast = rtmp;
+
+		if ((rtmp = (struct role_transition *)
+		     acl_alloc(sizeof (struct role_transition))) == NULL)
+			return -ENOMEM;
+
+		if (copy_from_user(rtmp, rusertp,
+				   sizeof (struct role_transition)))
+			return -EFAULT;
+
+		rusertp = rtmp->prev;
+
+		len = strnlen_user(rtmp->rolename, GR_SPROLE_LEN);
+
+		if (!len || len >= GR_SPROLE_LEN)
+			return -EINVAL;
+
+		if ((tmp = (char *) acl_alloc(len)) == NULL)
+			return -ENOMEM;
+
+		if (copy_from_user(tmp, rtmp->rolename, len))
+			return -EFAULT;
+		tmp[len-1] = '\0';
+		rtmp->rolename = tmp;
+
+		if (!rlast) {
+			rtmp->prev = NULL;
+			rolep->transitions = rtmp;
+		} else {
+			rlast->next = rtmp;
+			rtmp->prev = rlast;
+		}
+
+		if (!rusertp)
+			rtmp->next = NULL;
+	}
+
+	return 0;
+}
+
+static struct acl_subject_label *
+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied)
+{
+	struct acl_subject_label *s_tmp = NULL, *s_tmp2;
+	unsigned int len;
+	char *tmp;
+	__u32 num_objs;
+	struct acl_ip_label **i_tmp, *i_utmp2;
+	struct gr_hash_struct ghash;
+	struct subject_map *subjmap;
+	unsigned int i_num;
+	int err;
+
+	if (already_copied != NULL)
+		*already_copied = 0;
+
+	s_tmp = lookup_subject_map(userp);
+
+	/* we've already copied this subject into the kernel, just return
+	   the reference to it, and don't copy it over again
+	*/
+	if (s_tmp) {
+		if (already_copied != NULL)
+			*already_copied = 1;
+		return(s_tmp);
+	}
+
+	if ((s_tmp = (struct acl_subject_label *)
+	    acl_alloc(sizeof (struct acl_subject_label))) == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL);
+	if (subjmap == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	subjmap->user = userp;
+	subjmap->kernel = s_tmp;
+	insert_subj_map_entry(subjmap);
+
+	if (copy_from_user(s_tmp, userp,
+			   sizeof (struct acl_subject_label)))
+		return ERR_PTR(-EFAULT);
+
+	len = strnlen_user(s_tmp->filename, PATH_MAX);
+
+	if (!len || len >= PATH_MAX)
+		return ERR_PTR(-EINVAL);
+
+	if ((tmp = (char *) acl_alloc(len)) == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	if (copy_from_user(tmp, s_tmp->filename, len))
+		return ERR_PTR(-EFAULT);
+	tmp[len-1] = '\0';
+	s_tmp->filename = tmp;
+
+	if (!strcmp(s_tmp->filename, "/"))
+		role->root_label = s_tmp;
+
+	if (copy_from_user(&ghash, s_tmp->hash, sizeof(struct gr_hash_struct)))
+		return ERR_PTR(-EFAULT);
+
+	/* copy user and group transition tables */
+
+	if (s_tmp->user_trans_num) {
+		uid_t *uidlist;
+
+		uidlist = (uid_t *)acl_alloc_num(s_tmp->user_trans_num, sizeof(uid_t));
+		if (uidlist == NULL)
+			return ERR_PTR(-ENOMEM);
+		if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t)))
+			return ERR_PTR(-EFAULT);
+
+		s_tmp->user_transitions = uidlist;
+	}
+
+	if (s_tmp->group_trans_num) {
+		gid_t *gidlist;
+
+		gidlist = (gid_t *)acl_alloc_num(s_tmp->group_trans_num, sizeof(gid_t));
+		if (gidlist == NULL)
+			return ERR_PTR(-ENOMEM);
+		if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t)))
+			return ERR_PTR(-EFAULT);
+
+		s_tmp->group_transitions = gidlist;
+	}
+
+	/* set up object hash table */
+	num_objs = count_user_objs(ghash.first);
+
+	s_tmp->obj_hash_size = num_objs;
+	s_tmp->obj_hash =
+	    (struct acl_object_label **)
+	    create_table(&(s_tmp->obj_hash_size), sizeof(void *));
+
+	if (!s_tmp->obj_hash)
+		return ERR_PTR(-ENOMEM);
+
+	memset(s_tmp->obj_hash, 0,
+	       s_tmp->obj_hash_size *
+	       sizeof (struct acl_object_label *));
+
+	/* add in objects */
+	err = copy_user_objs(ghash.first, s_tmp, role);
+
+	if (err)
+		return ERR_PTR(err);
+
+	/* set pointer for parent subject */
+	if (s_tmp->parent_subject) {
+		s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role, NULL);
+
+		if (IS_ERR(s_tmp2))
+			return s_tmp2;
+
+		s_tmp->parent_subject = s_tmp2;
+	}
+
+	/* add in ip acls */
+
+	if (!s_tmp->ip_num) {
+		s_tmp->ips = NULL;
+		goto insert;
+	}
+
+	i_tmp =
+	    (struct acl_ip_label **) acl_alloc_num(s_tmp->ip_num,
+					       sizeof (struct acl_ip_label *));
+
+	if (!i_tmp)
+		return ERR_PTR(-ENOMEM);
+
+	for (i_num = 0; i_num < s_tmp->ip_num; i_num++) {
+		*(i_tmp + i_num) =
+		    (struct acl_ip_label *)
+		    acl_alloc(sizeof (struct acl_ip_label));
+		if (!*(i_tmp + i_num))
+			return ERR_PTR(-ENOMEM);
+
+		if (copy_from_user
+		    (&i_utmp2, s_tmp->ips + i_num,
+		     sizeof (struct acl_ip_label *)))
+			return ERR_PTR(-EFAULT);
+
+		if (copy_from_user
+		    (*(i_tmp + i_num), i_utmp2,
+		     sizeof (struct acl_ip_label)))
+			return ERR_PTR(-EFAULT);
+		
+		if ((*(i_tmp + i_num))->iface == NULL)
+			continue;
+
+		len = strnlen_user((*(i_tmp + i_num))->iface, IFNAMSIZ);
+		if (!len || len >= IFNAMSIZ)
+			return ERR_PTR(-EINVAL);
+		tmp = acl_alloc(len);
+		if (tmp == NULL)
+			return ERR_PTR(-ENOMEM);
+		if (copy_from_user(tmp, (*(i_tmp + i_num))->iface, len))
+			return ERR_PTR(-EFAULT);
+		(*(i_tmp + i_num))->iface = tmp;
+	}
+
+	s_tmp->ips = i_tmp;
+
+insert:
+	if (!insert_name_entry(s_tmp->filename, s_tmp->inode,
+			       s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0))
+		return ERR_PTR(-ENOMEM);
+
+	return s_tmp;
+}
+
+static int
+copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role)
+{
+	struct acl_subject_label s_pre;
+	struct acl_subject_label * ret;
+	int err;
+
+	while (userp) {
+		if (copy_from_user(&s_pre, userp,
+				   sizeof (struct acl_subject_label)))
+			return -EFAULT;
+		
+		ret = do_copy_user_subj(userp, role, NULL);
+
+		err = PTR_ERR(ret);
+		if (IS_ERR(ret))
+			return err;
+
+		insert_acl_subj_label(ret, role);
+
+		userp = s_pre.prev;
+	}
+
+	return 0;
+}
+
+static int
+copy_user_acl(struct gr_arg *arg)
+{
+	struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2;
+	struct acl_subject_label *subj_list;
+	struct sprole_pw *sptmp;
+	struct gr_hash_struct *ghash;
+	uid_t *domainlist;
+	unsigned int r_num;
+	unsigned int len;
+	char *tmp;
+	int err = 0;
+	__u16 i;
+	__u32 num_subjs;
+
+	/* we need a default and kernel role */
+	if (arg->role_db.num_roles < 2)
+		return -EINVAL;
+
+	/* copy special role authentication info from userspace */
+
+	num_sprole_pws = arg->num_sprole_pws;
+	acl_special_roles = (struct sprole_pw **) acl_alloc_num(num_sprole_pws, sizeof(struct sprole_pw *));
+
+	if (!acl_special_roles && num_sprole_pws)
+		return -ENOMEM;
+
+	for (i = 0; i < num_sprole_pws; i++) {
+		sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw));
+		if (!sptmp)
+			return -ENOMEM;
+		if (copy_from_user(sptmp, arg->sprole_pws + i,
+				   sizeof (struct sprole_pw)))
+			return -EFAULT;
+
+		len = strnlen_user(sptmp->rolename, GR_SPROLE_LEN);
+
+		if (!len || len >= GR_SPROLE_LEN)
+			return -EINVAL;
+
+		if ((tmp = (char *) acl_alloc(len)) == NULL)
+			return -ENOMEM;
+
+		if (copy_from_user(tmp, sptmp->rolename, len))
+			return -EFAULT;
+
+		tmp[len-1] = '\0';
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+		printk(KERN_ALERT "Copying special role %s\n", tmp);
+#endif
+		sptmp->rolename = tmp;
+		acl_special_roles[i] = sptmp;
+	}
+
+	r_utmp = (struct acl_role_label **) arg->role_db.r_table;
+
+	for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) {
+		r_tmp = acl_alloc(sizeof (struct acl_role_label));
+
+		if (!r_tmp)
+			return -ENOMEM;
+
+		if (copy_from_user(&r_utmp2, r_utmp + r_num,
+				   sizeof (struct acl_role_label *)))
+			return -EFAULT;
+
+		if (copy_from_user(r_tmp, r_utmp2,
+				   sizeof (struct acl_role_label)))
+			return -EFAULT;
+
+		len = strnlen_user(r_tmp->rolename, GR_SPROLE_LEN);
+
+		if (!len || len >= PATH_MAX)
+			return -EINVAL;
+
+		if ((tmp = (char *) acl_alloc(len)) == NULL)
+			return -ENOMEM;
+
+		if (copy_from_user(tmp, r_tmp->rolename, len))
+			return -EFAULT;
+
+		tmp[len-1] = '\0';
+		r_tmp->rolename = tmp;
+
+		if (!strcmp(r_tmp->rolename, "default")
+		    && (r_tmp->roletype & GR_ROLE_DEFAULT)) {
+			default_role = r_tmp;
+		} else if (!strcmp(r_tmp->rolename, ":::kernel:::")) {
+			kernel_role = r_tmp;
+		}
+
+		if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL)
+			return -ENOMEM;
+
+		if (copy_from_user(ghash, r_tmp->hash, sizeof(struct gr_hash_struct)))
+			return -EFAULT;
+
+		r_tmp->hash = ghash;
+
+		num_subjs = count_user_subjs(r_tmp->hash->first);
+
+		r_tmp->subj_hash_size = num_subjs;
+		r_tmp->subj_hash =
+		    (struct acl_subject_label **)
+		    create_table(&(r_tmp->subj_hash_size), sizeof(void *));
+
+		if (!r_tmp->subj_hash)
+			return -ENOMEM;
+
+		err = copy_user_allowedips(r_tmp);
+		if (err)
+			return err;
+
+		/* copy domain info */
+		if (r_tmp->domain_children != NULL) {
+			domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t));
+			if (domainlist == NULL)
+				return -ENOMEM;
+
+			if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t)))
+				return -EFAULT;
+
+			r_tmp->domain_children = domainlist;
+		}
+
+		err = copy_user_transitions(r_tmp);
+		if (err)
+			return err;
+
+		memset(r_tmp->subj_hash, 0,
+		       r_tmp->subj_hash_size *
+		       sizeof (struct acl_subject_label *));
+
+		/* acquire the list of subjects, then NULL out
+		   the list prior to parsing the subjects for this role,
+		   as during this parsing the list is replaced with a list
+		   of *nested* subjects for the role
+		*/
+		subj_list = r_tmp->hash->first;
+
+		/* set nested subject list to null */
+		r_tmp->hash->first = NULL;
+
+		err = copy_user_subjs(subj_list, r_tmp);
+
+		if (err)
+			return err;
+
+		insert_acl_role_label(r_tmp);
+	}
+
+	if (default_role == NULL || kernel_role == NULL)
+		return -EINVAL;
+
+	return err;
+}
+
+static int
+gracl_init(struct gr_arg *args)
+{
+	int error = 0;
+
+	memcpy(gr_system_salt, args->salt, GR_SALT_LEN);
+	memcpy(gr_system_sum, args->sum, GR_SHA_LEN);
+
+	if (init_variables(args)) {
+		gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
+		error = -ENOMEM;
+		free_variables();
+		goto out;
+	}
+
+	error = copy_user_acl(args);
+	free_init_variables();
+	if (error) {
+		free_variables();
+		goto out;
+	}
+
+	if ((error = gr_set_acls(0))) {
+		free_variables();
+		goto out;
+	}
+
+	pax_open_kernel();
+	gr_status |= GR_READY;
+	pax_close_kernel();
+
+      out:
+	return error;
+}
+
+/* derived from glibc fnmatch() 0: match, 1: no match*/
+
+static int
+glob_match(const char *p, const char *n)
+{
+	char c;
+
+	while ((c = *p++) != '\0') {
+	switch (c) {
+		case '?':
+			if (*n == '\0')
+				return 1;
+			else if (*n == '/')
+				return 1;
+			break;
+		case '\\':
+			if (*n != c)
+				return 1;
+			break;
+		case '*':
+			for (c = *p++; c == '?' || c == '*'; c = *p++) {
+				if (*n == '/')
+					return 1;
+				else if (c == '?') {
+					if (*n == '\0')
+						return 1;
+					else
+						++n;
+				}
+			}
+			if (c == '\0') {
+				return 0;
+			} else {
+				const char *endp;
+
+				if ((endp = strchr(n, '/')) == NULL)
+					endp = n + strlen(n);
+
+				if (c == '[') {
+					for (--p; n < endp; ++n)
+						if (!glob_match(p, n))
+							return 0;
+				} else if (c == '/') {
+					while (*n != '\0' && *n != '/')
+						++n;
+					if (*n == '/' && !glob_match(p, n + 1))
+						return 0;
+				} else {
+					for (--p; n < endp; ++n)
+						if (*n == c && !glob_match(p, n))
+							return 0;
+				}
+
+				return 1;
+			}
+		case '[':
+			{
+			int not;
+			char cold;
+
+			if (*n == '\0' || *n == '/')
+				return 1;
+
+			not = (*p == '!' || *p == '^');
+			if (not)
+				++p;
+
+			c = *p++;
+			for (;;) {
+				unsigned char fn = (unsigned char)*n;
+
+				if (c == '\0')
+					return 1;
+				else {
+					if (c == fn)
+						goto matched;
+					cold = c;
+					c = *p++;
+
+					if (c == '-' && *p != ']') {
+						unsigned char cend = *p++;
+
+						if (cend == '\0')
+							return 1;
+
+						if (cold <= fn && fn <= cend)
+							goto matched;
+
+						c = *p++;
+					}
+				}
+
+				if (c == ']')
+					break;
+			}
+			if (!not)
+				return 1;
+			break;
+		matched:
+			while (c != ']') {
+				if (c == '\0')
+					return 1;
+
+				c = *p++;
+			}
+			if (not)
+				return 1;
+		}
+		break;
+	default:
+		if (c != *n)
+			return 1;
+	}
+
+	++n;
+	}
+
+	if (*n == '\0')
+		return 0;
+
+	if (*n == '/')
+		return 0;
+
+	return 1;
+}
+
+static struct acl_object_label *
+chk_glob_label(struct acl_object_label *globbed,
+	const struct dentry *dentry, const struct vfsmount *mnt, char **path)
+{
+	struct acl_object_label *tmp;
+
+	if (*path == NULL)
+		*path = gr_to_filename_nolock(dentry, mnt);
+
+	tmp = globbed;
+
+	while (tmp) {
+		if (!glob_match(tmp->filename, *path))
+			return tmp;
+		tmp = tmp->next;
+	}
+
+	return NULL;
+}
+
+static struct acl_object_label *
+__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
+	    const ino_t curr_ino, const dev_t curr_dev,
+	    const struct acl_subject_label *subj, char **path, const int checkglob)
+{
+	struct acl_subject_label *tmpsubj;
+	struct acl_object_label *retval;
+	struct acl_object_label *retval2;
+
+	tmpsubj = (struct acl_subject_label *) subj;
+	read_lock(&gr_inode_lock);
+	do {
+		retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj);
+		if (retval) {
+			if (checkglob && retval->globbed) {
+				retval2 = chk_glob_label(retval->globbed, orig_dentry, orig_mnt, path);
+				if (retval2)
+					retval = retval2;
+			}
+			break;
+		}
+	} while ((tmpsubj = tmpsubj->parent_subject));
+	read_unlock(&gr_inode_lock);
+
+	return retval;
+}
+
+static __inline__ struct acl_object_label *
+full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
+	    struct dentry *curr_dentry,
+	    const struct acl_subject_label *subj, char **path, const int checkglob)
+{
+	int newglob = checkglob;
+	ino_t inode;
+	dev_t device;
+
+	/* if we aren't checking a subdirectory of the original path yet, don't do glob checking
+	   as we don't want a / * rule to match instead of the / object
+	   don't do this for create lookups that call this function though, since they're looking up
+	   on the parent and thus need globbing checks on all paths
+	*/
+	if (orig_dentry == curr_dentry && newglob != GR_CREATE_GLOB)
+		newglob = GR_NO_GLOB;
+
+	spin_lock(&curr_dentry->d_lock);
+	inode = curr_dentry->d_inode->i_ino;
+	device = __get_dev(curr_dentry);
+	spin_unlock(&curr_dentry->d_lock);
+
+	return __full_lookup(orig_dentry, orig_mnt, inode, device, subj, path, newglob);
+}
+
+#ifdef CONFIG_HUGETLBFS
+static inline bool
+is_hugetlbfs_mnt(const struct vfsmount *mnt)
+{
+	int i;
+	for (i = 0; i < HUGE_MAX_HSTATE; i++) {
+		if (unlikely(hugetlbfs_vfsmount[i] == mnt))
+			return true;
+	}
+
+	return false;
+}
+#endif
+
+static struct acl_object_label *
+__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
+	      const struct acl_subject_label *subj, char *path, const int checkglob)
+{
+	struct dentry *dentry = (struct dentry *) l_dentry;
+	struct vfsmount *mnt = (struct vfsmount *) l_mnt;
+	struct mount *real_mnt = real_mount(mnt);
+	struct acl_object_label *retval;
+	struct dentry *parent;
+
+	br_read_lock(&vfsmount_lock);
+	write_seqlock(&rename_lock);
+
+	if (unlikely((mnt == shm_mnt && dentry->d_inode->i_nlink == 0) || mnt == pipe_mnt ||
+#ifdef CONFIG_NET
+	    mnt == sock_mnt ||
+#endif
+#ifdef CONFIG_HUGETLBFS
+	    (is_hugetlbfs_mnt(mnt) && dentry->d_inode->i_nlink == 0) ||
+#endif
+		/* ignore Eric Biederman */
+	    IS_PRIVATE(l_dentry->d_inode))) {
+		retval = (subj->mode & GR_SHMEXEC) ? fakefs_obj_rwx : fakefs_obj_rw;
+		goto out;
+	}
+
+	for (;;) {
+		if (dentry == real_root.dentry && mnt == real_root.mnt)
+			break;
+
+		if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
+			if (!mnt_has_parent(real_mnt))
+				break;
+
+			retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
+			if (retval != NULL)
+				goto out;
+
+			dentry = real_mnt->mnt_mountpoint;
+			real_mnt = real_mnt->mnt_parent;
+			mnt = &real_mnt->mnt;
+			continue;
+		}
+
+		parent = dentry->d_parent;
+		retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
+		if (retval != NULL)
+			goto out;
+
+		dentry = parent;
+	}
+
+	retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
+
+	/* real_root is pinned so we don't have to hold a reference */
+	if (retval == NULL)
+		retval = full_lookup(l_dentry, l_mnt, real_root.dentry, subj, &path, checkglob);
+out:
+	write_sequnlock(&rename_lock);
+	br_read_unlock(&vfsmount_lock);
+
+	BUG_ON(retval == NULL);
+
+	return retval;
+}
+
+static __inline__ struct acl_object_label *
+chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
+	      const struct acl_subject_label *subj)
+{
+	char *path = NULL;
+	return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_REG_GLOB);
+}
+
+static __inline__ struct acl_object_label *
+chk_obj_label_noglob(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
+	      const struct acl_subject_label *subj)
+{
+	char *path = NULL;
+	return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_NO_GLOB);
+}
+
+static __inline__ struct acl_object_label *
+chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
+		     const struct acl_subject_label *subj, char *path)
+{
+	return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_CREATE_GLOB);
+}
+
+static struct acl_subject_label *
+chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
+	       const struct acl_role_label *role)
+{
+	struct dentry *dentry = (struct dentry *) l_dentry;
+	struct vfsmount *mnt = (struct vfsmount *) l_mnt;
+	struct mount *real_mnt = real_mount(mnt);
+	struct acl_subject_label *retval;
+	struct dentry *parent;
+
+	br_read_lock(&vfsmount_lock);
+	write_seqlock(&rename_lock);
+
+	for (;;) {
+		if (dentry == real_root.dentry && mnt == real_root.mnt)
+			break;
+		if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
+			if (!mnt_has_parent(real_mnt))
+				break;
+
+			spin_lock(&dentry->d_lock);
+			read_lock(&gr_inode_lock);
+			retval =
+				lookup_acl_subj_label(dentry->d_inode->i_ino,
+						__get_dev(dentry), role);
+			read_unlock(&gr_inode_lock);
+			spin_unlock(&dentry->d_lock);
+			if (retval != NULL)
+				goto out;
+
+			dentry = real_mnt->mnt_mountpoint;
+			real_mnt = real_mnt->mnt_parent;
+			mnt = &real_mnt->mnt;
+			continue;
+		}
+
+		spin_lock(&dentry->d_lock);
+		read_lock(&gr_inode_lock);
+		retval = lookup_acl_subj_label(dentry->d_inode->i_ino,
+					  __get_dev(dentry), role);
+		read_unlock(&gr_inode_lock);
+		parent = dentry->d_parent;
+		spin_unlock(&dentry->d_lock);
+
+		if (retval != NULL)
+			goto out;
+
+		dentry = parent;
+	}
+
+	spin_lock(&dentry->d_lock);
+	read_lock(&gr_inode_lock);
+	retval = lookup_acl_subj_label(dentry->d_inode->i_ino,
+				  __get_dev(dentry), role);
+	read_unlock(&gr_inode_lock);
+	spin_unlock(&dentry->d_lock);
+
+	if (unlikely(retval == NULL)) {
+		/* real_root is pinned, we don't need to hold a reference */
+		read_lock(&gr_inode_lock);
+		retval = lookup_acl_subj_label(real_root.dentry->d_inode->i_ino,
+					  __get_dev(real_root.dentry), role);
+		read_unlock(&gr_inode_lock);
+	}
+out:
+	write_sequnlock(&rename_lock);
+	br_read_unlock(&vfsmount_lock);
+
+	BUG_ON(retval == NULL);
+
+	return retval;
+}
+
+static void
+gr_log_learn(const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode)
+{
+	struct task_struct *task = current;
+	const struct cred *cred = current_cred();
+
+	security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
+		       GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
+		       task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
+		       1UL, 1UL, gr_to_filename(dentry, mnt), (unsigned long) mode, &task->signal->saved_ip);
+
+	return;
+}
+
+static void
+gr_log_learn_uid_change(const kuid_t real, const kuid_t effective, const kuid_t fs)
+{
+	struct task_struct *task = current;
+	const struct cred *cred = current_cred();
+
+	security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
+		       GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
+		       task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
+		       'u', GR_GLOBAL_UID(real), GR_GLOBAL_UID(effective), GR_GLOBAL_UID(fs), &task->signal->saved_ip);
+
+	return;
+}
+
+static void
+gr_log_learn_gid_change(const kgid_t real, const kgid_t effective, const kgid_t fs)
+{
+	struct task_struct *task = current;
+	const struct cred *cred = current_cred();
+
+	security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
+		       GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
+		       task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
+		       'g', GR_GLOBAL_GID(real), GR_GLOBAL_GID(effective), GR_GLOBAL_GID(fs), &task->signal->saved_ip);
+
+	return;
+}
+
+__u32
+gr_search_file(const struct dentry * dentry, const __u32 mode,
+	       const struct vfsmount * mnt)
+{
+	__u32 retval = mode;
+	struct acl_subject_label *curracl;
+	struct acl_object_label *currobj;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return (mode & ~GR_AUDITS);
+
+	curracl = current->acl;
+
+	currobj = chk_obj_label(dentry, mnt, curracl);
+	retval = currobj->mode & mode;
+
+	/* if we're opening a specified transfer file for writing
+	   (e.g. /dev/initctl), then transfer our role to init
+	*/
+	if (unlikely(currobj->mode & GR_INIT_TRANSFER && retval & GR_WRITE &&
+		     current->role->roletype & GR_ROLE_PERSIST)) {
+		struct task_struct *task = init_pid_ns.child_reaper;
+
+		if (task->role != current->role) {
+			task->acl_sp_role = 0;
+			task->acl_role_id = current->acl_role_id;
+			task->role = current->role;
+			rcu_read_lock();
+			read_lock(&grsec_exec_file_lock);
+			gr_apply_subject_to_task(task);
+			read_unlock(&grsec_exec_file_lock);
+			rcu_read_unlock();
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_INIT_TRANSFER_MSG);
+		}
+	}
+
+	if (unlikely
+	    ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE)
+	     && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) {
+		__u32 new_mode = mode;
+
+		new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
+
+		retval = new_mode;
+
+		if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN)
+			new_mode |= GR_INHERIT;
+
+		if (!(mode & GR_NOLEARN))
+			gr_log_learn(dentry, mnt, new_mode);
+	}
+
+	return retval;
+}
+
+struct acl_object_label *gr_get_create_object(const struct dentry *new_dentry,
+					      const struct dentry *parent,
+					      const struct vfsmount *mnt)
+{
+	struct name_entry *match;
+	struct acl_object_label *matchpo;
+	struct acl_subject_label *curracl;
+	char *path;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return NULL;
+
+	preempt_disable();
+	path = gr_to_filename_rbac(new_dentry, mnt);
+	match = lookup_name_entry_create(path);
+
+	curracl = current->acl;
+
+	if (match) {
+		read_lock(&gr_inode_lock);
+		matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl);
+		read_unlock(&gr_inode_lock);
+
+		if (matchpo) {
+			preempt_enable();
+			return matchpo;
+		}
+	}
+
+	// lookup parent
+
+	matchpo = chk_obj_create_label(parent, mnt, curracl, path);
+
+	preempt_enable();
+	return matchpo;
+}
+
+__u32
+gr_check_create(const struct dentry * new_dentry, const struct dentry * parent,
+		const struct vfsmount * mnt, const __u32 mode)
+{
+	struct acl_object_label *matchpo;
+	__u32 retval;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return (mode & ~GR_AUDITS);
+
+	matchpo = gr_get_create_object(new_dentry, parent, mnt);
+
+	retval = matchpo->mode & mode;
+
+	if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS)))
+	    && (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
+		__u32 new_mode = mode;
+
+		new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
+
+		gr_log_learn(new_dentry, mnt, new_mode);
+		return new_mode;
+	}
+
+	return retval;
+}
+
+__u32
+gr_check_link(const struct dentry * new_dentry,
+	      const struct dentry * parent_dentry,
+	      const struct vfsmount * parent_mnt,
+	      const struct dentry * old_dentry, const struct vfsmount * old_mnt)
+{
+	struct acl_object_label *obj;
+	__u32 oldmode, newmode;
+	__u32 needmode;
+	__u32 checkmodes = GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | GR_SETID | GR_READ |
+			   GR_DELETE | GR_INHERIT;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return (GR_CREATE | GR_LINK);
+
+	obj = chk_obj_label(old_dentry, old_mnt, current->acl);
+	oldmode = obj->mode;
+
+	obj = gr_get_create_object(new_dentry, parent_dentry, parent_mnt);
+	newmode = obj->mode;
+
+	needmode = newmode & checkmodes;
+
+	// old name for hardlink must have at least the permissions of the new name
+	if ((oldmode & needmode) != needmode)
+		goto bad;
+
+	// if old name had restrictions/auditing, make sure the new name does as well
+	needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS);
+
+	// don't allow hardlinking of suid/sgid/fcapped files without permission
+	if (is_privileged_binary(old_dentry))
+		needmode |= GR_SETID;
+
+	if ((newmode & needmode) != needmode)
+		goto bad;
+
+	// enforce minimum permissions
+	if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK))
+		return newmode;
+bad:
+	needmode = oldmode;
+	if (is_privileged_binary(old_dentry))
+		needmode |= GR_SETID;
+	
+	if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) {
+		gr_log_learn(old_dentry, old_mnt, needmode | GR_CREATE | GR_LINK);
+		return (GR_CREATE | GR_LINK);
+	} else if (newmode & GR_SUPPRESS)
+		return GR_SUPPRESS;
+	else
+		return 0;
+}
+
+int
+gr_check_hidden_task(const struct task_struct *task)
+{
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+
+	if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW))
+		return 1;
+
+	return 0;
+}
+
+int
+gr_check_protected_task(const struct task_struct *task)
+{
+	if (unlikely(!(gr_status & GR_READY) || !task))
+		return 0;
+
+	if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
+	    task->acl != current->acl)
+		return 1;
+
+	return 0;
+}
+
+int
+gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
+{
+	struct task_struct *p;
+	int ret = 0;
+
+	if (unlikely(!(gr_status & GR_READY) || !pid))
+		return ret;
+
+	read_lock(&tasklist_lock);
+	do_each_pid_task(pid, type, p) {
+		if ((p->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
+		    p->acl != current->acl) {
+			ret = 1;
+			goto out;
+		}
+	} while_each_pid_task(pid, type, p);
+out:
+	read_unlock(&tasklist_lock);
+
+	return ret;
+}
+
+void
+gr_copy_label(struct task_struct *tsk)
+{
+	tsk->signal->used_accept = 0;
+	tsk->acl_sp_role = 0;
+	tsk->acl_role_id = current->acl_role_id;
+	tsk->acl = current->acl;
+	tsk->role = current->role;
+	tsk->signal->curr_ip = current->signal->curr_ip;
+	tsk->signal->saved_ip = current->signal->saved_ip;
+	if (current->exec_file)
+		get_file(current->exec_file);
+	tsk->exec_file = current->exec_file;
+	tsk->is_writable = current->is_writable;
+	if (unlikely(current->signal->used_accept)) {
+		current->signal->curr_ip = 0;
+		current->signal->saved_ip = 0;
+	}
+
+	return;
+}
+
+static void
+gr_set_proc_res(struct task_struct *task)
+{
+	struct acl_subject_label *proc;
+	unsigned short i;
+
+	proc = task->acl;
+
+	if (proc->mode & (GR_LEARN | GR_INHERITLEARN))
+		return;
+
+	for (i = 0; i < RLIM_NLIMITS; i++) {
+		if (!(proc->resmask & (1U << i)))
+			continue;
+
+		task->signal->rlim[i].rlim_cur = proc->res[i].rlim_cur;
+		task->signal->rlim[i].rlim_max = proc->res[i].rlim_max;
+
+		if (i == RLIMIT_CPU)
+			update_rlimit_cpu(task, proc->res[i].rlim_cur);
+	}
+
+	return;
+}
+
+extern int __gr_process_user_ban(struct user_struct *user);
+
+int
+gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
+{
+	unsigned int i;
+	__u16 num;
+	uid_t *uidlist;
+	uid_t curuid;
+	int realok = 0;
+	int effectiveok = 0;
+	int fsok = 0;
+	uid_t globalreal, globaleffective, globalfs;
+
+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE)
+	struct user_struct *user;
+
+	if (!uid_valid(real))
+		goto skipit;
+
+	/* find user based on global namespace */
+
+	globalreal = GR_GLOBAL_UID(real);
+
+	user = find_user(make_kuid(&init_user_ns, globalreal));
+	if (user == NULL)
+		goto skipit;
+
+	if (__gr_process_user_ban(user)) {
+		/* for find_user */
+		free_uid(user);
+		return 1;
+	}
+
+	/* for find_user */
+	free_uid(user);
+
+skipit:
+#endif
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+
+	if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
+		gr_log_learn_uid_change(real, effective, fs);
+
+	num = current->acl->user_trans_num;
+	uidlist = current->acl->user_transitions;
+
+	if (uidlist == NULL)
+		return 0;
+
+	if (!uid_valid(real)) {
+		realok = 1;
+		globalreal = (uid_t)-1;		
+	} else {
+		globalreal = GR_GLOBAL_UID(real);		
+	}
+	if (!uid_valid(effective)) {
+		effectiveok = 1;
+		globaleffective = (uid_t)-1;
+	} else {
+		globaleffective = GR_GLOBAL_UID(effective);
+	}
+	if (!uid_valid(fs)) {
+		fsok = 1;
+		globalfs = (uid_t)-1;
+	} else {
+		globalfs = GR_GLOBAL_UID(fs);
+	}
+
+	if (current->acl->user_trans_type & GR_ID_ALLOW) {
+		for (i = 0; i < num; i++) {
+			curuid = uidlist[i];
+			if (globalreal == curuid)
+				realok = 1;
+			if (globaleffective == curuid)
+				effectiveok = 1;
+			if (globalfs == curuid)
+				fsok = 1;
+		}
+	} else if (current->acl->user_trans_type & GR_ID_DENY) {
+		for (i = 0; i < num; i++) {
+			curuid = uidlist[i];
+			if (globalreal == curuid)
+				break;
+			if (globaleffective == curuid)
+				break;
+			if (globalfs == curuid)
+				break;
+		}
+		/* not in deny list */
+		if (i == num) {
+			realok = 1;
+			effectiveok = 1;
+			fsok = 1;
+		}
+	}
+
+	if (realok && effectiveok && fsok)
+		return 0;
+	else {
+		gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
+		return 1;
+	}
+}
+
+int
+gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
+{
+	unsigned int i;
+	__u16 num;
+	gid_t *gidlist;
+	gid_t curgid;
+	int realok = 0;
+	int effectiveok = 0;
+	int fsok = 0;
+	gid_t globalreal, globaleffective, globalfs;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+
+	if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
+		gr_log_learn_gid_change(real, effective, fs);
+
+	num = current->acl->group_trans_num;
+	gidlist = current->acl->group_transitions;
+
+	if (gidlist == NULL)
+		return 0;
+
+	if (!gid_valid(real)) {
+		realok = 1;
+		globalreal = (gid_t)-1;		
+	} else {
+		globalreal = GR_GLOBAL_GID(real);
+	}
+	if (!gid_valid(effective)) {
+		effectiveok = 1;
+		globaleffective = (gid_t)-1;		
+	} else {
+		globaleffective = GR_GLOBAL_GID(effective);
+	}
+	if (!gid_valid(fs)) {
+		fsok = 1;
+		globalfs = (gid_t)-1;		
+	} else {
+		globalfs = GR_GLOBAL_GID(fs);
+	}
+
+	if (current->acl->group_trans_type & GR_ID_ALLOW) {
+		for (i = 0; i < num; i++) {
+			curgid = gidlist[i];
+			if (globalreal == curgid)
+				realok = 1;
+			if (globaleffective == curgid)
+				effectiveok = 1;
+			if (globalfs == curgid)
+				fsok = 1;
+		}
+	} else if (current->acl->group_trans_type & GR_ID_DENY) {
+		for (i = 0; i < num; i++) {
+			curgid = gidlist[i];
+			if (globalreal == curgid)
+				break;
+			if (globaleffective == curgid)
+				break;
+			if (globalfs == curgid)
+				break;
+		}
+		/* not in deny list */
+		if (i == num) {
+			realok = 1;
+			effectiveok = 1;
+			fsok = 1;
+		}
+	}
+
+	if (realok && effectiveok && fsok)
+		return 0;
+	else {
+		gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
+		return 1;
+	}
+}
+
+extern int gr_acl_is_capable(const int cap);
+
+void
+gr_set_role_label(struct task_struct *task, const kuid_t kuid, const kgid_t kgid)
+{
+	struct acl_role_label *role = task->role;
+	struct acl_subject_label *subj = NULL;
+	struct acl_object_label *obj;
+	struct file *filp;
+	uid_t uid;
+	gid_t gid;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	uid = GR_GLOBAL_UID(kuid);
+	gid = GR_GLOBAL_GID(kgid);
+
+	filp = task->exec_file;
+
+	/* kernel process, we'll give them the kernel role */
+	if (unlikely(!filp)) {
+		task->role = kernel_role;
+		task->acl = kernel_role->root_label;
+		return;
+	} else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL))
+		role = lookup_acl_role_label(task, uid, gid);
+
+	/* don't change the role if we're not a privileged process */
+	if (role && task->role != role &&
+	    (((role->roletype & GR_ROLE_USER) && !gr_acl_is_capable(CAP_SETUID)) ||
+	     ((role->roletype & GR_ROLE_GROUP) && !gr_acl_is_capable(CAP_SETGID))))
+		return;
+
+	/* perform subject lookup in possibly new role
+	   we can use this result below in the case where role == task->role
+	*/
+	subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role);
+
+	/* if we changed uid/gid, but result in the same role
+	   and are using inheritance, don't lose the inherited subject
+	   if current subject is other than what normal lookup
+	   would result in, we arrived via inheritance, don't
+	   lose subject
+	*/
+	if (role != task->role || (!(task->acl->mode & GR_INHERITLEARN) &&
+				   (subj == task->acl)))
+		task->acl = subj;
+
+	task->role = role;
+
+	task->is_writable = 0;
+
+	/* ignore additional mmap checks for processes that are writable 
+	   by the default ACL */
+	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		task->is_writable = 1;
+	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		task->is_writable = 1;
+
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+	printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
+#endif
+
+	gr_set_proc_res(task);
+
+	return;
+}
+
+int
+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
+		  const int unsafe_flags)
+{
+	struct task_struct *task = current;
+	struct acl_subject_label *newacl;
+	struct acl_object_label *obj;
+	__u32 retmode;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+
+	newacl = chk_subj_label(dentry, mnt, task->role);
+
+	/* special handling for if we did an strace -f -p <pid> from an admin role, where pid then
+	   did an exec
+	*/
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	if (task->ptrace && task->parent && ((task->parent->role->roletype & GR_ROLE_GOD) ||
+	    (task->parent->acl->mode & GR_POVERRIDE))) {
+		read_unlock(&tasklist_lock);
+		rcu_read_unlock();
+		goto skip_check;
+	}
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	if (unsafe_flags && !(task->acl->mode & GR_POVERRIDE) && (task->acl != newacl) &&
+	     !(task->role->roletype & GR_ROLE_GOD) &&
+	     !gr_search_file(dentry, GR_PTRACERD, mnt) &&
+	     !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
+		if (unsafe_flags & LSM_UNSAFE_SHARE)
+			gr_log_fs_generic(GR_DONT_AUDIT, GR_UNSAFESHARE_EXEC_ACL_MSG, dentry, mnt);
+		else
+			gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt);
+		return -EACCES;
+	}
+
+skip_check:
+
+	obj = chk_obj_label(dentry, mnt, task->acl);
+	retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT);
+
+	if (!(task->acl->mode & GR_INHERITLEARN) &&
+	    ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) {
+		if (obj->nested)
+			task->acl = obj->nested;
+		else
+			task->acl = newacl;
+	} else if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT)
+		gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt);
+
+	task->is_writable = 0;
+
+	/* ignore additional mmap checks for processes that are writable 
+	   by the default ACL */
+	obj = chk_obj_label(dentry, mnt, default_role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		task->is_writable = 1;
+	obj = chk_obj_label(dentry, mnt, task->role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		task->is_writable = 1;
+
+	gr_set_proc_res(task);
+
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+	printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
+#endif
+	return 0;
+}
+
+/* always called with valid inodev ptr */
+static void
+do_handle_delete(struct inodev_entry *inodev, const ino_t ino, const dev_t dev)
+{
+	struct acl_object_label *matchpo;
+	struct acl_subject_label *matchps;
+	struct acl_subject_label *subj;
+	struct acl_role_label *role;
+	unsigned int x;
+
+	FOR_EACH_ROLE_START(role)
+		FOR_EACH_SUBJECT_START(role, subj, x)
+			if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
+				matchpo->mode |= GR_DELETED;
+		FOR_EACH_SUBJECT_END(subj,x)
+		FOR_EACH_NESTED_SUBJECT_START(role, subj)
+			/* nested subjects aren't in the role's subj_hash table */
+			if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
+				matchpo->mode |= GR_DELETED;
+		FOR_EACH_NESTED_SUBJECT_END(subj)
+		if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL)
+			matchps->mode |= GR_DELETED;
+	FOR_EACH_ROLE_END(role)
+
+	inodev->nentry->deleted = 1;
+
+	return;
+}
+
+void
+gr_handle_delete(const ino_t ino, const dev_t dev)
+{
+	struct inodev_entry *inodev;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	write_lock(&gr_inode_lock);
+	inodev = lookup_inodev_entry(ino, dev);
+	if (inodev != NULL)
+		do_handle_delete(inodev, ino, dev);
+	write_unlock(&gr_inode_lock);
+
+	return;
+}
+
+static void
+update_acl_obj_label(const ino_t oldinode, const dev_t olddevice,
+		     const ino_t newinode, const dev_t newdevice,
+		     struct acl_subject_label *subj)
+{
+	unsigned int index = gr_fhash(oldinode, olddevice, subj->obj_hash_size);
+	struct acl_object_label *match;
+
+	match = subj->obj_hash[index];
+
+	while (match && (match->inode != oldinode ||
+	       match->device != olddevice ||
+	       !(match->mode & GR_DELETED)))
+		match = match->next;
+
+	if (match && (match->inode == oldinode)
+	    && (match->device == olddevice)
+	    && (match->mode & GR_DELETED)) {
+		if (match->prev == NULL) {
+			subj->obj_hash[index] = match->next;
+			if (match->next != NULL)
+				match->next->prev = NULL;
+		} else {
+			match->prev->next = match->next;
+			if (match->next != NULL)
+				match->next->prev = match->prev;
+		}
+		match->prev = NULL;
+		match->next = NULL;
+		match->inode = newinode;
+		match->device = newdevice;
+		match->mode &= ~GR_DELETED;
+
+		insert_acl_obj_label(match, subj);
+	}
+
+	return;
+}
+
+static void
+update_acl_subj_label(const ino_t oldinode, const dev_t olddevice,
+		      const ino_t newinode, const dev_t newdevice,
+		      struct acl_role_label *role)
+{
+	unsigned int index = gr_fhash(oldinode, olddevice, role->subj_hash_size);
+	struct acl_subject_label *match;
+
+	match = role->subj_hash[index];
+
+	while (match && (match->inode != oldinode ||
+	       match->device != olddevice ||
+	       !(match->mode & GR_DELETED)))
+		match = match->next;
+
+	if (match && (match->inode == oldinode)
+	    && (match->device == olddevice)
+	    && (match->mode & GR_DELETED)) {
+		if (match->prev == NULL) {
+			role->subj_hash[index] = match->next;
+			if (match->next != NULL)
+				match->next->prev = NULL;
+		} else {
+			match->prev->next = match->next;
+			if (match->next != NULL)
+				match->next->prev = match->prev;
+		}
+		match->prev = NULL;
+		match->next = NULL;
+		match->inode = newinode;
+		match->device = newdevice;
+		match->mode &= ~GR_DELETED;
+
+		insert_acl_subj_label(match, role);
+	}
+
+	return;
+}
+
+static void
+update_inodev_entry(const ino_t oldinode, const dev_t olddevice,
+		    const ino_t newinode, const dev_t newdevice)
+{
+	unsigned int index = gr_fhash(oldinode, olddevice, inodev_set.i_size);
+	struct inodev_entry *match;
+
+	match = inodev_set.i_hash[index];
+
+	while (match && (match->nentry->inode != oldinode ||
+	       match->nentry->device != olddevice || !match->nentry->deleted))
+		match = match->next;
+
+	if (match && (match->nentry->inode == oldinode)
+	    && (match->nentry->device == olddevice) &&
+	    match->nentry->deleted) {
+		if (match->prev == NULL) {
+			inodev_set.i_hash[index] = match->next;
+			if (match->next != NULL)
+				match->next->prev = NULL;
+		} else {
+			match->prev->next = match->next;
+			if (match->next != NULL)
+				match->next->prev = match->prev;
+		}
+		match->prev = NULL;
+		match->next = NULL;
+		match->nentry->inode = newinode;
+		match->nentry->device = newdevice;
+		match->nentry->deleted = 0;
+
+		insert_inodev_entry(match);
+	}
+
+	return;
+}
+
+static void
+__do_handle_create(const struct name_entry *matchn, ino_t ino, dev_t dev)
+{
+	struct acl_subject_label *subj;
+	struct acl_role_label *role;
+	unsigned int x;
+
+	FOR_EACH_ROLE_START(role)
+		update_acl_subj_label(matchn->inode, matchn->device, ino, dev, role);
+
+		FOR_EACH_NESTED_SUBJECT_START(role, subj)
+			if ((subj->inode == ino) && (subj->device == dev)) {
+				subj->inode = ino;
+				subj->device = dev;
+			}
+			/* nested subjects aren't in the role's subj_hash table */
+			update_acl_obj_label(matchn->inode, matchn->device,
+					     ino, dev, subj);
+		FOR_EACH_NESTED_SUBJECT_END(subj)
+		FOR_EACH_SUBJECT_START(role, subj, x)
+			update_acl_obj_label(matchn->inode, matchn->device,
+					     ino, dev, subj);
+		FOR_EACH_SUBJECT_END(subj,x)
+	FOR_EACH_ROLE_END(role)
+
+	update_inodev_entry(matchn->inode, matchn->device, ino, dev);
+
+	return;
+}
+
+static void
+do_handle_create(const struct name_entry *matchn, const struct dentry *dentry,
+		 const struct vfsmount *mnt)
+{
+	ino_t ino = dentry->d_inode->i_ino;
+	dev_t dev = __get_dev(dentry);
+
+	__do_handle_create(matchn, ino, dev);	
+
+	return;
+}
+
+void
+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	struct name_entry *matchn;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	preempt_disable();
+	matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt));
+
+	if (unlikely((unsigned long)matchn)) {
+		write_lock(&gr_inode_lock);
+		do_handle_create(matchn, dentry, mnt);
+		write_unlock(&gr_inode_lock);
+	}
+	preempt_enable();
+
+	return;
+}
+
+void
+gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
+{
+	struct name_entry *matchn;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	preempt_disable();
+	matchn = lookup_name_entry(gr_to_proc_filename_rbac(dentry, init_pid_ns.proc_mnt));
+
+	if (unlikely((unsigned long)matchn)) {
+		write_lock(&gr_inode_lock);
+		__do_handle_create(matchn, inode->i_ino, inode->i_sb->s_dev);
+		write_unlock(&gr_inode_lock);
+	}
+	preempt_enable();
+
+	return;
+}
+
+void
+gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
+		 struct dentry *old_dentry,
+		 struct dentry *new_dentry,
+		 struct vfsmount *mnt, const __u8 replace)
+{
+	struct name_entry *matchn;
+	struct inodev_entry *inodev;
+	struct inode *inode = new_dentry->d_inode;
+	ino_t old_ino = old_dentry->d_inode->i_ino;
+	dev_t old_dev = __get_dev(old_dentry);
+
+	/* vfs_rename swaps the name and parent link for old_dentry and
+	   new_dentry
+	   at this point, old_dentry has the new name, parent link, and inode
+	   for the renamed file
+	   if a file is being replaced by a rename, new_dentry has the inode
+	   and name for the replaced file
+	*/
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	preempt_disable();
+	matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt));
+
+	/* we wouldn't have to check d_inode if it weren't for
+	   NFS silly-renaming
+	 */
+
+	write_lock(&gr_inode_lock);
+	if (unlikely(replace && inode)) {
+		ino_t new_ino = inode->i_ino;
+		dev_t new_dev = __get_dev(new_dentry);
+
+		inodev = lookup_inodev_entry(new_ino, new_dev);
+		if (inodev != NULL && ((inode->i_nlink <= 1) || S_ISDIR(inode->i_mode)))
+			do_handle_delete(inodev, new_ino, new_dev);
+	}
+
+	inodev = lookup_inodev_entry(old_ino, old_dev);
+	if (inodev != NULL && ((old_dentry->d_inode->i_nlink <= 1) || S_ISDIR(old_dentry->d_inode->i_mode)))
+		do_handle_delete(inodev, old_ino, old_dev);
+
+	if (unlikely((unsigned long)matchn))
+		do_handle_create(matchn, old_dentry, mnt);
+
+	write_unlock(&gr_inode_lock);
+	preempt_enable();
+
+	return;
+}
+
+static int
+lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt,
+			 unsigned char **sum)
+{
+	struct acl_role_label *r;
+	struct role_allowed_ip *ipp;
+	struct role_transition *trans;
+	unsigned int i;
+	int found = 0;
+	u32 curr_ip = current->signal->curr_ip;
+
+	current->signal->saved_ip = curr_ip;
+
+	/* check transition table */
+
+	for (trans = current->role->transitions; trans; trans = trans->next) {
+		if (!strcmp(rolename, trans->rolename)) {
+			found = 1;
+			break;
+		}
+	}
+
+	if (!found)
+		return 0;
+
+	/* handle special roles that do not require authentication
+	   and check ip */
+
+	FOR_EACH_ROLE_START(r)
+		if (!strcmp(rolename, r->rolename) &&
+		    (r->roletype & GR_ROLE_SPECIAL)) {
+			found = 0;
+			if (r->allowed_ips != NULL) {
+				for (ipp = r->allowed_ips; ipp; ipp = ipp->next) {
+					if ((ntohl(curr_ip) & ipp->netmask) ==
+					     (ntohl(ipp->addr) & ipp->netmask))
+						found = 1;
+				}
+			} else
+				found = 2;
+			if (!found)
+				return 0;
+
+			if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) ||
+			    ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) {
+				*salt = NULL;
+				*sum = NULL;
+				return 1;
+			}
+		}
+	FOR_EACH_ROLE_END(r)
+
+	for (i = 0; i < num_sprole_pws; i++) {
+		if (!strcmp(rolename, acl_special_roles[i]->rolename)) {
+			*salt = acl_special_roles[i]->salt;
+			*sum = acl_special_roles[i]->sum;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static void
+assign_special_role(char *rolename)
+{
+	struct acl_object_label *obj;
+	struct acl_role_label *r;
+	struct acl_role_label *assigned = NULL;
+	struct task_struct *tsk;
+	struct file *filp;
+
+	FOR_EACH_ROLE_START(r)
+		if (!strcmp(rolename, r->rolename) &&
+		    (r->roletype & GR_ROLE_SPECIAL)) {
+			assigned = r;
+			break;
+		}
+	FOR_EACH_ROLE_END(r)
+
+	if (!assigned)
+		return;
+
+	read_lock(&tasklist_lock);
+	read_lock(&grsec_exec_file_lock);
+
+	tsk = current->real_parent;
+	if (tsk == NULL)
+		goto out_unlock;
+
+	filp = tsk->exec_file;
+	if (filp == NULL)
+		goto out_unlock;
+
+	tsk->is_writable = 0;
+
+	tsk->acl_sp_role = 1;
+	tsk->acl_role_id = ++acl_sp_role_value;
+	tsk->role = assigned;
+	tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role);
+
+	/* ignore additional mmap checks for processes that are writable 
+	   by the default ACL */
+	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		tsk->is_writable = 1;
+	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		tsk->is_writable = 1;
+
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+	printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename, tsk->acl->filename, tsk->comm, task_pid_nr(tsk));
+#endif
+
+out_unlock:
+	read_unlock(&grsec_exec_file_lock);
+	read_unlock(&tasklist_lock);
+	return;
+}
+
+int gr_check_secure_terminal(struct task_struct *task)
+{
+	struct task_struct *p, *p2, *p3;
+	struct files_struct *files;
+	struct fdtable *fdt;
+	struct file *our_file = NULL, *file;
+	int i;
+
+	if (task->signal->tty == NULL)
+		return 1;
+
+	files = get_files_struct(task);
+	if (files != NULL) {
+		rcu_read_lock();
+		fdt = files_fdtable(files);
+		for (i=0; i < fdt->max_fds; i++) {
+			file = fcheck_files(files, i);
+			if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) {
+				get_file(file);
+				our_file = file;
+			}
+		}
+		rcu_read_unlock();
+		put_files_struct(files);
+	}
+
+	if (our_file == NULL)
+		return 1;
+
+	read_lock(&tasklist_lock);
+	do_each_thread(p2, p) {
+		files = get_files_struct(p);
+		if (files == NULL ||
+		    (p->signal && p->signal->tty == task->signal->tty)) {
+			if (files != NULL)
+				put_files_struct(files);
+			continue;
+		}
+		rcu_read_lock();
+		fdt = files_fdtable(files);
+		for (i=0; i < fdt->max_fds; i++) {
+			file = fcheck_files(files, i);
+			if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) &&
+			    file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) {
+				p3 = task;
+				while (task_pid_nr(p3) > 0) {
+					if (p3 == p)
+						break;
+					p3 = p3->real_parent;
+				}
+				if (p3 == p)
+					break;
+				gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p);
+				gr_handle_alertkill(p);
+				rcu_read_unlock();
+				put_files_struct(files);
+				read_unlock(&tasklist_lock);
+				fput(our_file);
+				return 0;
+			}
+		}
+		rcu_read_unlock();
+		put_files_struct(files);
+	} while_each_thread(p2, p);
+	read_unlock(&tasklist_lock);
+
+	fput(our_file);
+	return 1;
+}
+
+static int gr_rbac_disable(void *unused)
+{
+	pax_open_kernel();
+	gr_status &= ~GR_READY;
+	pax_close_kernel();
+
+	return 0;
+}
+
+ssize_t
+write_grsec_handler(struct file *file, const char * buf, size_t count, loff_t *ppos)
+{
+	struct gr_arg_wrapper uwrap;
+	unsigned char *sprole_salt = NULL;
+	unsigned char *sprole_sum = NULL;
+	int error = sizeof (struct gr_arg_wrapper);
+	int error2 = 0;
+
+	mutex_lock(&gr_dev_mutex);
+
+	if ((gr_status & GR_READY) && !(current->acl->mode & GR_KERNELAUTH)) {
+		error = -EPERM;
+		goto out;
+	}
+
+	if (count != sizeof (struct gr_arg_wrapper)) {
+		gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)sizeof(struct gr_arg_wrapper));
+		error = -EINVAL;
+		goto out;
+	}
+
+	
+	if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) {
+		gr_auth_expires = 0;
+		gr_auth_attempts = 0;
+	}
+
+	if (copy_from_user(&uwrap, buf, sizeof (struct gr_arg_wrapper))) {
+		error = -EFAULT;
+		goto out;
+	}
+
+	if ((uwrap.version != GRSECURITY_VERSION) || (uwrap.size != sizeof(struct gr_arg))) {
+		error = -EINVAL;
+		goto out;
+	}
+
+	if (copy_from_user(gr_usermode, uwrap.arg, sizeof (struct gr_arg))) {
+		error = -EFAULT;
+		goto out;
+	}
+
+	if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM &&
+	    gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
+	    time_after(gr_auth_expires, get_seconds())) {
+		error = -EBUSY;
+		goto out;
+	}
+
+	/* if non-root trying to do anything other than use a special role,
+	   do not attempt authentication, do not count towards authentication
+	   locking
+	 */
+
+	if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS &&
+	    gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM &&
+	    gr_is_global_nonroot(current_uid())) {
+		error = -EPERM;
+		goto out;
+	}
+
+	/* ensure pw and special role name are null terminated */
+
+	gr_usermode->pw[GR_PW_LEN - 1] = '\0';
+	gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0';
+
+	/* Okay. 
+	 * We have our enough of the argument structure..(we have yet
+	 * to copy_from_user the tables themselves) . Copy the tables
+	 * only if we need them, i.e. for loading operations. */
+
+	switch (gr_usermode->mode) {
+	case GR_STATUS:
+			if (gr_status & GR_READY) {
+				error = 1;
+				if (!gr_check_secure_terminal(current))
+					error = 3;
+			} else
+				error = 2;
+			goto out;
+	case GR_SHUTDOWN:
+		if ((gr_status & GR_READY)
+		    && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
+			stop_machine(gr_rbac_disable, NULL, NULL);
+			free_variables();
+			memset(gr_usermode, 0, sizeof (struct gr_arg));
+			memset(gr_system_salt, 0, GR_SALT_LEN);
+			memset(gr_system_sum, 0, GR_SHA_LEN);
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG);
+		} else if (gr_status & GR_READY) {
+			gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG);
+			error = -EPERM;
+		} else {
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG);
+			error = -EAGAIN;
+		}
+		break;
+	case GR_ENABLE:
+		if (!(gr_status & GR_READY) && !(error2 = gracl_init(gr_usermode)))
+			gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION);
+		else {
+			if (gr_status & GR_READY)
+				error = -EAGAIN;
+			else
+				error = error2;
+			gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION);
+		}
+		break;
+	case GR_RELOAD:
+		if (!(gr_status & GR_READY)) {
+			gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION);
+			error = -EAGAIN;
+		} else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
+			stop_machine(gr_rbac_disable, NULL, NULL);
+			free_variables();
+			error2 = gracl_init(gr_usermode);
+			if (!error2)
+				gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION);
+			else {
+				gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
+				error = error2;
+			}
+		} else {
+			gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
+			error = -EPERM;
+		}
+		break;
+	case GR_SEGVMOD:
+		if (unlikely(!(gr_status & GR_READY))) {
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG);
+			error = -EAGAIN;
+			break;
+		}
+
+		if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG);
+			if (gr_usermode->segv_device && gr_usermode->segv_inode) {
+				struct acl_subject_label *segvacl;
+				segvacl =
+				    lookup_acl_subj_label(gr_usermode->segv_inode,
+							  gr_usermode->segv_device,
+							  current->role);
+				if (segvacl) {
+					segvacl->crashes = 0;
+					segvacl->expires = 0;
+				}
+			} else if (gr_find_uid(gr_usermode->segv_uid) >= 0) {
+				gr_remove_uid(gr_usermode->segv_uid);
+			}
+		} else {
+			gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG);
+			error = -EPERM;
+		}
+		break;
+	case GR_SPROLE:
+	case GR_SPROLEPAM:
+		if (unlikely(!(gr_status & GR_READY))) {
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG);
+			error = -EAGAIN;
+			break;
+		}
+
+		if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) {
+			current->role->expires = 0;
+			current->role->auth_attempts = 0;
+		}
+
+		if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
+		    time_after(current->role->expires, get_seconds())) {
+			error = -EBUSY;
+			goto out;
+		}
+
+		if (lookup_special_role_auth
+		    (gr_usermode->mode, gr_usermode->sp_role, &sprole_salt, &sprole_sum)
+		    && ((!sprole_salt && !sprole_sum)
+			|| !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) {
+			char *p = "";
+			assign_special_role(gr_usermode->sp_role);
+			read_lock(&tasklist_lock);
+			if (current->real_parent)
+				p = current->real_parent->role->rolename;
+			read_unlock(&tasklist_lock);
+			gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG,
+					p, acl_sp_role_value);
+		} else {
+			gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role);
+			error = -EPERM;
+			if(!(current->role->auth_attempts++))
+				current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
+
+			goto out;
+		}
+		break;
+	case GR_UNSPROLE:
+		if (unlikely(!(gr_status & GR_READY))) {
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG);
+			error = -EAGAIN;
+			break;
+		}
+
+		if (current->role->roletype & GR_ROLE_SPECIAL) {
+			char *p = "";
+			int i = 0;
+
+			read_lock(&tasklist_lock);
+			if (current->real_parent) {
+				p = current->real_parent->role->rolename;
+				i = current->real_parent->acl_role_id;
+			}
+			read_unlock(&tasklist_lock);
+
+			gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i);
+			gr_set_acls(1);
+		} else {
+			error = -EPERM;
+			goto out;
+		}
+		break;
+	default:
+		gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode);
+		error = -EINVAL;
+		break;
+	}
+
+	if (error != -EPERM)
+		goto out;
+
+	if(!(gr_auth_attempts++))
+		gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
+
+      out:
+	mutex_unlock(&gr_dev_mutex);
+	return error;
+}
+
+/* must be called with
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	read_lock(&grsec_exec_file_lock);
+*/
+int gr_apply_subject_to_task(struct task_struct *task)
+{
+	struct acl_object_label *obj;
+	char *tmpname;
+	struct acl_subject_label *tmpsubj;
+	struct file *filp;
+	struct name_entry *nmatch;
+
+	filp = task->exec_file;
+	if (filp == NULL)
+		return 0;
+
+	/* the following is to apply the correct subject 
+	   on binaries running when the RBAC system 
+	   is enabled, when the binaries have been 
+	   replaced or deleted since their execution
+	   -----
+	   when the RBAC system starts, the inode/dev
+	   from exec_file will be one the RBAC system
+	   is unaware of.  It only knows the inode/dev
+	   of the present file on disk, or the absence
+	   of it.
+	*/
+	preempt_disable();
+	tmpname = gr_to_filename_rbac(filp->f_path.dentry, filp->f_path.mnt);
+			
+	nmatch = lookup_name_entry(tmpname);
+	preempt_enable();
+	tmpsubj = NULL;
+	if (nmatch) {
+		if (nmatch->deleted)
+			tmpsubj = lookup_acl_subj_label_deleted(nmatch->inode, nmatch->device, task->role);
+		else
+			tmpsubj = lookup_acl_subj_label(nmatch->inode, nmatch->device, task->role);
+		if (tmpsubj != NULL)
+			task->acl = tmpsubj;
+	}
+	if (tmpsubj == NULL)
+		task->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt,
+					   task->role);
+	if (task->acl) {
+		task->is_writable = 0;
+		/* ignore additional mmap checks for processes that are writable 
+		   by the default ACL */
+		obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
+		if (unlikely(obj->mode & GR_WRITE))
+			task->is_writable = 1;
+		obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
+		if (unlikely(obj->mode & GR_WRITE))
+			task->is_writable = 1;
+
+		gr_set_proc_res(task);
+
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+		printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
+#endif
+	} else {
+		return 1;
+	}
+
+	return 0;
+}
+
+int
+gr_set_acls(const int type)
+{
+	struct task_struct *task, *task2;
+	struct acl_role_label *role = current->role;
+	__u16 acl_role_id = current->acl_role_id;
+	const struct cred *cred;
+	int ret;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	read_lock(&grsec_exec_file_lock);
+	do_each_thread(task2, task) {
+		/* check to see if we're called from the exit handler,
+		   if so, only replace ACLs that have inherited the admin
+		   ACL */
+
+		if (type && (task->role != role ||
+			     task->acl_role_id != acl_role_id))
+			continue;
+
+		task->acl_role_id = 0;
+		task->acl_sp_role = 0;
+
+		if (task->exec_file) {
+			cred = __task_cred(task);
+			task->role = lookup_acl_role_label(task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
+			ret = gr_apply_subject_to_task(task);
+			if (ret) {
+				read_unlock(&grsec_exec_file_lock);
+				read_unlock(&tasklist_lock);
+				rcu_read_unlock();
+				gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task_pid_nr(task));
+				return ret;
+			}
+		} else {
+			// it's a kernel process
+			task->role = kernel_role;
+			task->acl = kernel_role->root_label;
+#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
+			task->acl->mode &= ~GR_PROCFIND;
+#endif
+		}
+	} while_each_thread(task2, task);
+	read_unlock(&grsec_exec_file_lock);
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	return 0;
+}
+
+#if defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC)
+static const unsigned long res_learn_bumps[GR_NLIMITS] = {
+	[RLIMIT_CPU] = GR_RLIM_CPU_BUMP,
+	[RLIMIT_FSIZE] = GR_RLIM_FSIZE_BUMP,
+	[RLIMIT_DATA] = GR_RLIM_DATA_BUMP,
+	[RLIMIT_STACK] = GR_RLIM_STACK_BUMP,
+	[RLIMIT_CORE] = GR_RLIM_CORE_BUMP,
+	[RLIMIT_RSS] = GR_RLIM_RSS_BUMP,
+	[RLIMIT_NPROC] = GR_RLIM_NPROC_BUMP,
+	[RLIMIT_NOFILE] = GR_RLIM_NOFILE_BUMP,
+	[RLIMIT_MEMLOCK] = GR_RLIM_MEMLOCK_BUMP,
+	[RLIMIT_AS] = GR_RLIM_AS_BUMP,
+	[RLIMIT_LOCKS] = GR_RLIM_LOCKS_BUMP,
+	[RLIMIT_SIGPENDING] = GR_RLIM_SIGPENDING_BUMP,
+	[RLIMIT_MSGQUEUE] = GR_RLIM_MSGQUEUE_BUMP,
+	[RLIMIT_NICE] = GR_RLIM_NICE_BUMP,
+	[RLIMIT_RTPRIO] = GR_RLIM_RTPRIO_BUMP,
+	[RLIMIT_RTTIME] = GR_RLIM_RTTIME_BUMP
+};
+
+void
+gr_learn_resource(const struct task_struct *task,
+		  const int res, const unsigned long wanted, const int gt)
+{
+	struct acl_subject_label *acl;
+	const struct cred *cred;
+
+	if (unlikely((gr_status & GR_READY) &&
+		     task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))))
+		goto skip_reslog;
+
+	gr_log_resource(task, res, wanted, gt);
+skip_reslog:
+
+	if (unlikely(!(gr_status & GR_READY) || !wanted || res >= GR_NLIMITS))
+		return;
+
+	acl = task->acl;
+
+	if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) ||
+		   !(acl->resmask & (1U << (unsigned short) res))))
+		return;
+
+	if (wanted >= acl->res[res].rlim_cur) {
+		unsigned long res_add;
+
+		res_add = wanted + res_learn_bumps[res];
+
+		acl->res[res].rlim_cur = res_add;
+
+		if (wanted > acl->res[res].rlim_max)
+			acl->res[res].rlim_max = res_add;
+
+		/* only log the subject filename, since resource logging is supported for
+		   single-subject learning only */
+		rcu_read_lock();
+		cred = __task_cred(task);
+		security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
+			       task->role->roletype, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), acl->filename,
+			       acl->filename, acl->res[res].rlim_cur, acl->res[res].rlim_max,
+			       "", (unsigned long) res, &task->signal->saved_ip);
+		rcu_read_unlock();
+	}
+
+	return;
+}
+EXPORT_SYMBOL(gr_learn_resource);
+#endif
+
+#if defined(CONFIG_PAX_HAVE_ACL_FLAGS) && (defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR))
+void
+pax_set_initial_flags(struct linux_binprm *bprm)
+{
+	struct task_struct *task = current;
+        struct acl_subject_label *proc;
+	unsigned long flags;
+
+        if (unlikely(!(gr_status & GR_READY)))
+                return;
+
+	flags = pax_get_flags(task);
+
+        proc = task->acl;
+
+	if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC)
+		flags &= ~MF_PAX_PAGEEXEC;
+	if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC)
+		flags &= ~MF_PAX_SEGMEXEC;
+	if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP)
+		flags &= ~MF_PAX_RANDMMAP;
+	if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP)
+		flags &= ~MF_PAX_EMUTRAMP;
+	if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT)
+		flags &= ~MF_PAX_MPROTECT;
+
+	if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC)
+		flags |= MF_PAX_PAGEEXEC;
+	if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC)
+		flags |= MF_PAX_SEGMEXEC;
+	if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP)
+		flags |= MF_PAX_RANDMMAP;
+	if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP)
+		flags |= MF_PAX_EMUTRAMP;
+	if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT)
+		flags |= MF_PAX_MPROTECT;
+
+	pax_set_flags(task, flags);
+
+        return;
+}
+#endif
+
+int
+gr_handle_proc_ptrace(struct task_struct *task)
+{
+	struct file *filp;
+	struct task_struct *tmp = task;
+	struct task_struct *curtemp = current;
+	__u32 retmode;
+
+#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+#endif
+
+	read_lock(&tasklist_lock);
+	read_lock(&grsec_exec_file_lock);
+	filp = task->exec_file;
+
+	while (task_pid_nr(tmp) > 0) {
+		if (tmp == curtemp)
+			break;
+		tmp = tmp->real_parent;
+	}
+
+	if (!filp || (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
+				((gr_status & GR_READY)	&& !(current->acl->mode & GR_RELAXPTRACE))))) {
+		read_unlock(&grsec_exec_file_lock);
+		read_unlock(&tasklist_lock);
+		return 1;
+	}
+
+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	if (!(gr_status & GR_READY)) {
+		read_unlock(&grsec_exec_file_lock);
+		read_unlock(&tasklist_lock);
+		return 0;
+	}
+#endif
+
+	retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt);
+	read_unlock(&grsec_exec_file_lock);
+	read_unlock(&tasklist_lock);
+
+	if (retmode & GR_NOPTRACE)
+		return 1;
+
+	if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD)
+	    && (current->acl != task->acl || (current->acl != current->role->root_label
+	    && task_pid_nr(current) != task_pid_nr(task))))
+		return 1;
+
+	return 0;
+}
+
+void task_grsec_rbac(struct seq_file *m, struct task_struct *p)
+{
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	if (!(current->role->roletype & GR_ROLE_GOD))
+		return;
+
+	seq_printf(m, "RBAC:\t%.64s:%c:%.950s\n",
+			p->role->rolename, gr_task_roletype_to_char(p),
+			p->acl->filename);
+}
+
+int
+gr_handle_ptrace(struct task_struct *task, const long request)
+{
+	struct task_struct *tmp = task;
+	struct task_struct *curtemp = current;
+	__u32 retmode;
+
+#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+#endif
+	if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
+		read_lock(&tasklist_lock);
+		while (task_pid_nr(tmp) > 0) {
+			if (tmp == curtemp)
+				break;
+			tmp = tmp->real_parent;
+		}
+
+		if (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
+					((gr_status & GR_READY)	&& !(current->acl->mode & GR_RELAXPTRACE)))) {
+			read_unlock(&tasklist_lock);
+			gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
+			return 1;
+		}
+		read_unlock(&tasklist_lock);
+	}
+
+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	if (!(gr_status & GR_READY))
+		return 0;
+#endif
+
+	read_lock(&grsec_exec_file_lock);
+	if (unlikely(!task->exec_file)) {
+		read_unlock(&grsec_exec_file_lock);
+		return 0;
+	}
+
+	retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt);
+	read_unlock(&grsec_exec_file_lock);
+
+	if (retmode & GR_NOPTRACE) {
+		gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
+		return 1;
+	}
+		
+	if (retmode & GR_PTRACERD) {
+		switch (request) {
+		case PTRACE_SEIZE:
+		case PTRACE_POKETEXT:
+		case PTRACE_POKEDATA:
+		case PTRACE_POKEUSR:
+#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
+		case PTRACE_SETREGS:
+		case PTRACE_SETFPREGS:
+#endif
+#ifdef CONFIG_X86
+		case PTRACE_SETFPXREGS:
+#endif
+#ifdef CONFIG_ALTIVEC
+		case PTRACE_SETVRREGS:
+#endif
+			return 1;
+		default:
+			return 0;
+		}
+	} else if (!(current->acl->mode & GR_POVERRIDE) &&
+		   !(current->role->roletype & GR_ROLE_GOD) &&
+		   (current->acl != task->acl)) {
+		gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
+		return 1;
+	}
+
+	return 0;
+}
+
+static int is_writable_mmap(const struct file *filp)
+{
+	struct task_struct *task = current;
+	struct acl_object_label *obj, *obj2;
+
+	if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) &&
+	    !task->is_writable && S_ISREG(filp->f_path.dentry->d_inode->i_mode) && (filp->f_path.mnt != shm_mnt || (filp->f_path.dentry->d_inode->i_nlink > 0))) {
+		obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
+		obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt,
+				     task->role->root_label);
+		if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) {
+			gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+int
+gr_acl_handle_mmap(const struct file *file, const unsigned long prot)
+{
+	__u32 mode;
+
+	if (unlikely(!file || !(prot & PROT_EXEC)))
+		return 1;
+
+	if (is_writable_mmap(file))
+		return 0;
+
+	mode =
+	    gr_search_file(file->f_path.dentry,
+			   GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
+			   file->f_path.mnt);
+
+	if (!gr_tpe_allow(file))
+		return 0;
+
+	if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
+		return 0;
+	} else if (unlikely(!(mode & GR_EXEC))) {
+		return 0;
+	} else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
+		gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
+		return 1;
+	}
+
+	return 1;
+}
+
+int
+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
+{
+	__u32 mode;
+
+	if (unlikely(!file || !(prot & PROT_EXEC)))
+		return 1;
+
+	if (is_writable_mmap(file))
+		return 0;
+
+	mode =
+	    gr_search_file(file->f_path.dentry,
+			   GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
+			   file->f_path.mnt);
+
+	if (!gr_tpe_allow(file))
+		return 0;
+
+	if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
+		return 0;
+	} else if (unlikely(!(mode & GR_EXEC))) {
+		return 0;
+	} else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
+		gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
+		return 1;
+	}
+
+	return 1;
+}
+
+void
+gr_acl_handle_psacct(struct task_struct *task, const long code)
+{
+	unsigned long runtime;
+	unsigned long cputime;
+	unsigned int wday, cday;
+	__u8 whr, chr;
+	__u8 wmin, cmin;
+	__u8 wsec, csec;
+	struct timespec timeval;
+
+	if (unlikely(!(gr_status & GR_READY) || !task->acl ||
+		     !(task->acl->mode & GR_PROCACCT)))
+		return;
+
+	do_posix_clock_monotonic_gettime(&timeval);
+	runtime = timeval.tv_sec - task->start_time.tv_sec;
+	wday = runtime / (3600 * 24);
+	runtime -= wday * (3600 * 24);
+	whr = runtime / 3600;
+	runtime -= whr * 3600;
+	wmin = runtime / 60;
+	runtime -= wmin * 60;
+	wsec = runtime;
+
+	cputime = (task->utime + task->stime) / HZ;
+	cday = cputime / (3600 * 24);
+	cputime -= cday * (3600 * 24);
+	chr = cputime / 3600;
+	cputime -= chr * 3600;
+	cmin = cputime / 60;
+	cputime -= cmin * 60;
+	csec = cputime;
+
+	gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code);
+
+	return;
+}
+
+void gr_set_kernel_label(struct task_struct *task)
+{
+	if (gr_status & GR_READY) {
+		task->role = kernel_role;
+		task->acl = kernel_role->root_label;
+	}
+	return;
+}
+
+#ifdef CONFIG_TASKSTATS
+int gr_is_taskstats_denied(int pid)
+{
+	struct task_struct *task;
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	const struct cred *cred;
+#endif
+	int ret = 0;
+
+	/* restrict taskstats viewing to un-chrooted root users
+	   who have the 'view' subject flag if the RBAC system is enabled
+	*/
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	task = find_task_by_vpid(pid);
+	if (task) {
+#ifdef CONFIG_GRKERNSEC_CHROOT
+		if (proc_is_chrooted(task))
+			ret = -EACCES;
+#endif
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+		cred = __task_cred(task);
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+		if (gr_is_global_nonroot(cred->uid))
+			ret = -EACCES;
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+		if (gr_is_global_nonroot(cred->uid) && !groups_search(cred->group_info, grsec_proc_gid))
+			ret = -EACCES;
+#endif
+#endif
+		if (gr_status & GR_READY) {
+			if (!(task->acl->mode & GR_VIEW))
+				ret = -EACCES;
+		}
+	} else
+		ret = -ENOENT;
+
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	return ret;
+}
+#endif
+
+/* AUXV entries are filled via a descendant of search_binary_handler
+   after we've already applied the subject for the target
+*/
+int gr_acl_enable_at_secure(void)
+{
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+
+	if (current->acl->mode & GR_ATSECURE)
+		return 1;
+
+	return 0;
+}
+	
+int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const ino_t ino)
+{
+	struct task_struct *task = current;
+	struct dentry *dentry = file->f_path.dentry;
+	struct vfsmount *mnt = file->f_path.mnt;
+	struct acl_object_label *obj, *tmp;
+	struct acl_subject_label *subj;
+	unsigned int bufsize;
+	int is_not_root;
+	char *path;
+	dev_t dev = __get_dev(dentry);
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return 1;
+
+	if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))
+		return 1;
+
+	/* ignore Eric Biederman */
+	if (IS_PRIVATE(dentry->d_inode))
+		return 1;
+
+	subj = task->acl;
+	read_lock(&gr_inode_lock);
+	do {
+		obj = lookup_acl_obj_label(ino, dev, subj);
+		if (obj != NULL) {
+			read_unlock(&gr_inode_lock);
+			return (obj->mode & GR_FIND) ? 1 : 0;
+		}
+	} while ((subj = subj->parent_subject));
+	read_unlock(&gr_inode_lock);
+	
+	/* this is purely an optimization since we're looking for an object
+	   for the directory we're doing a readdir on
+	   if it's possible for any globbed object to match the entry we're
+	   filling into the directory, then the object we find here will be
+	   an anchor point with attached globbed objects
+	*/
+	obj = chk_obj_label_noglob(dentry, mnt, task->acl);
+	if (obj->globbed == NULL)
+		return (obj->mode & GR_FIND) ? 1 : 0;
+
+	is_not_root = ((obj->filename[0] == '/') &&
+		   (obj->filename[1] == '\0')) ? 0 : 1;
+	bufsize = PAGE_SIZE - namelen - is_not_root;
+
+	/* check bufsize > PAGE_SIZE || bufsize == 0 */
+	if (unlikely((bufsize - 1) > (PAGE_SIZE - 1)))
+		return 1;
+
+	preempt_disable();
+	path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
+			   bufsize);
+
+	bufsize = strlen(path);
+
+	/* if base is "/", don't append an additional slash */
+	if (is_not_root)
+		*(path + bufsize) = '/';
+	memcpy(path + bufsize + is_not_root, name, namelen);
+	*(path + bufsize + namelen + is_not_root) = '\0';
+
+	tmp = obj->globbed;
+	while (tmp) {
+		if (!glob_match(tmp->filename, path)) {
+			preempt_enable();
+			return (tmp->mode & GR_FIND) ? 1 : 0;
+		}
+		tmp = tmp->next;
+	}
+	preempt_enable();
+	return (obj->mode & GR_FIND) ? 1 : 0;
+}
+
+void gr_put_exec_file(struct task_struct *task)
+{
+	struct file *filp;  
+
+	write_lock(&grsec_exec_file_lock);
+	filp = task->exec_file;   
+	task->exec_file = NULL;
+	write_unlock(&grsec_exec_file_lock);
+
+	if (filp)
+		fput(filp);
+
+	return;
+}
+
+
+#ifdef CONFIG_NETFILTER_XT_MATCH_GRADM_MODULE
+EXPORT_SYMBOL(gr_acl_is_enabled);
+#endif
+EXPORT_SYMBOL(gr_set_kernel_label);
+#ifdef CONFIG_SECURITY
+EXPORT_SYMBOL(gr_check_user_change);
+EXPORT_SYMBOL(gr_check_group_change);
+#endif
+
diff --git a/grsecurity/gracl_alloc.c b/grsecurity/gracl_alloc.c
new file mode 100644
index 0000000..34fefda
--- /dev/null
+++ b/grsecurity/gracl_alloc.c
@@ -0,0 +1,105 @@
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/gracl.h>
+#include <linux/grsecurity.h>
+
+static unsigned long alloc_stack_next = 1;
+static unsigned long alloc_stack_size = 1;
+static void **alloc_stack;
+
+static __inline__ int
+alloc_pop(void)
+{
+	if (alloc_stack_next == 1)
+		return 0;
+
+	kfree(alloc_stack[alloc_stack_next - 2]);
+
+	alloc_stack_next--;
+
+	return 1;
+}
+
+static __inline__ int
+alloc_push(void *buf)
+{
+	if (alloc_stack_next >= alloc_stack_size)
+		return 1;
+
+	alloc_stack[alloc_stack_next - 1] = buf;
+
+	alloc_stack_next++;
+
+	return 0;
+}
+
+void *
+acl_alloc(unsigned long len)
+{
+	void *ret = NULL;
+
+	if (!len || len > PAGE_SIZE)
+		goto out;
+
+	ret = kmalloc(len, GFP_KERNEL);
+
+	if (ret) {
+		if (alloc_push(ret)) {
+			kfree(ret);
+			ret = NULL;
+		}
+	}
+
+out:
+	return ret;
+}
+
+void *
+acl_alloc_num(unsigned long num, unsigned long len)
+{
+	if (!len || (num > (PAGE_SIZE / len)))
+		return NULL;
+
+	return acl_alloc(num * len);
+}
+
+void
+acl_free_all(void)
+{
+	if (gr_acl_is_enabled() || !alloc_stack)
+		return;
+
+	while (alloc_pop()) ;
+
+	if (alloc_stack) {
+		if ((alloc_stack_size * sizeof (void *)) <= PAGE_SIZE)
+			kfree(alloc_stack);
+		else
+			vfree(alloc_stack);
+	}
+
+	alloc_stack = NULL;
+	alloc_stack_size = 1;
+	alloc_stack_next = 1;
+
+	return;
+}
+
+int
+acl_alloc_stack_init(unsigned long size)
+{
+	if ((size * sizeof (void *)) <= PAGE_SIZE)
+		alloc_stack =
+		    (void **) kmalloc(size * sizeof (void *), GFP_KERNEL);
+	else
+		alloc_stack = (void **) vmalloc(size * sizeof (void *));
+
+	alloc_stack_size = size;
+
+	if (!alloc_stack)
+		return 0;
+	else
+		return 1;
+}
diff --git a/grsecurity/gracl_cap.c b/grsecurity/gracl_cap.c
new file mode 100644
index 0000000..bdd51ea
--- /dev/null
+++ b/grsecurity/gracl_cap.c
@@ -0,0 +1,110 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/gracl.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+extern const char *captab_log[];
+extern int captab_log_entries;
+
+int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
+{
+	struct acl_subject_label *curracl;
+	kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
+	kernel_cap_t cap_audit = __cap_empty_set;
+
+	if (!gr_acl_is_enabled())
+		return 1;
+
+	curracl = task->acl;
+
+	cap_drop = curracl->cap_lower;
+	cap_mask = curracl->cap_mask;
+	cap_audit = curracl->cap_invert_audit;
+
+	while ((curracl = curracl->parent_subject)) {
+		/* if the cap isn't specified in the current computed mask but is specified in the
+		   current level subject, and is lowered in the current level subject, then add
+		   it to the set of dropped capabilities
+		   otherwise, add the current level subject's mask to the current computed mask
+		 */
+		if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
+			cap_raise(cap_mask, cap);
+			if (cap_raised(curracl->cap_lower, cap))
+				cap_raise(cap_drop, cap);
+			if (cap_raised(curracl->cap_invert_audit, cap))
+				cap_raise(cap_audit, cap);
+		}
+	}
+
+	if (!cap_raised(cap_drop, cap)) {
+		if (cap_raised(cap_audit, cap))
+			gr_log_cap(GR_DO_AUDIT, GR_CAP_ACL_MSG2, task, captab_log[cap]);
+		return 1;
+	}
+
+	curracl = task->acl;
+
+	if ((curracl->mode & (GR_LEARN | GR_INHERITLEARN))
+	    && cap_raised(cred->cap_effective, cap)) {
+		security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
+			       task->role->roletype, GR_GLOBAL_UID(cred->uid),
+			       GR_GLOBAL_GID(cred->gid), task->exec_file ?
+			       gr_to_filename(task->exec_file->f_path.dentry,
+			       task->exec_file->f_path.mnt) : curracl->filename,
+			       curracl->filename, 0UL,
+			       0UL, "", (unsigned long) cap, &task->signal->saved_ip);
+		return 1;
+	}
+
+	if ((cap >= 0) && (cap < captab_log_entries) && cap_raised(cred->cap_effective, cap) && !cap_raised(cap_audit, cap))
+		gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]);
+
+	return 0;
+}
+
+int
+gr_acl_is_capable(const int cap)
+{
+	return gr_task_acl_is_capable(current, current_cred(), cap);
+}
+
+int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap)
+{
+	struct acl_subject_label *curracl;
+	kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
+
+	if (!gr_acl_is_enabled())
+		return 1;
+
+	curracl = task->acl;
+
+	cap_drop = curracl->cap_lower;
+	cap_mask = curracl->cap_mask;
+
+	while ((curracl = curracl->parent_subject)) {
+		/* if the cap isn't specified in the current computed mask but is specified in the
+		   current level subject, and is lowered in the current level subject, then add
+		   it to the set of dropped capabilities
+		   otherwise, add the current level subject's mask to the current computed mask
+		 */
+		if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
+			cap_raise(cap_mask, cap);
+			if (cap_raised(curracl->cap_lower, cap))
+				cap_raise(cap_drop, cap);
+		}
+	}
+
+	if (!cap_raised(cap_drop, cap))
+		return 1;
+
+	return 0;
+}
+
+int
+gr_acl_is_capable_nolog(const int cap)
+{
+	return gr_task_acl_is_capable_nolog(current, cap);
+}
+
diff --git a/grsecurity/gracl_fs.c b/grsecurity/gracl_fs.c
new file mode 100644
index 0000000..a340c17
--- /dev/null
+++ b/grsecurity/gracl_fs.c
@@ -0,0 +1,431 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/stat.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/gracl.h>
+
+umode_t
+gr_acl_umask(void)
+{
+	if (unlikely(!gr_acl_is_enabled()))
+		return 0;
+
+	return current->role->umask;
+}
+
+__u32
+gr_acl_handle_hidden_file(const struct dentry * dentry,
+			  const struct vfsmount * mnt)
+{
+	__u32 mode;
+
+	if (unlikely(!dentry->d_inode))
+		return GR_FIND;
+
+	mode =
+	    gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt);
+
+	if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) {
+		gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
+		return mode;
+	} else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
+		return 0;
+	} else if (unlikely(!(mode & GR_FIND)))
+		return 0;
+
+	return GR_FIND;
+}
+
+__u32
+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
+		   int acc_mode)
+{
+	__u32 reqmode = GR_FIND;
+	__u32 mode;
+
+	if (unlikely(!dentry->d_inode))
+		return reqmode;
+
+	if (acc_mode & MAY_APPEND)
+		reqmode |= GR_APPEND;
+	else if (acc_mode & MAY_WRITE)
+		reqmode |= GR_WRITE;
+	if ((acc_mode & MAY_READ) && !S_ISDIR(dentry->d_inode->i_mode))
+		reqmode |= GR_READ;
+
+	mode =
+	    gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
+			   mnt);
+
+	if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
+		gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : reqmode &
+			       GR_APPEND ? " appending" : "");
+		return reqmode;
+	} else
+	    if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
+	{
+		gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : reqmode &
+			       GR_APPEND ? " appending" : "");
+		return 0;
+	} else if (unlikely((mode & reqmode) != reqmode))
+		return 0;
+
+	return reqmode;
+}
+
+__u32
+gr_acl_handle_creat(const struct dentry * dentry,
+		    const struct dentry * p_dentry,
+		    const struct vfsmount * p_mnt, int open_flags, int acc_mode,
+		    const int imode)
+{
+	__u32 reqmode = GR_WRITE | GR_CREATE;
+	__u32 mode;
+
+	if (acc_mode & MAY_APPEND)
+		reqmode |= GR_APPEND;
+	// if a directory was required or the directory already exists, then
+	// don't count this open as a read
+	if ((acc_mode & MAY_READ) &&
+	    !((open_flags & O_DIRECTORY) || (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode))))
+		reqmode |= GR_READ;
+	if ((open_flags & O_CREAT) &&
+	    ((imode & S_ISUID) || ((imode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
+		reqmode |= GR_SETID;
+
+	mode =
+	    gr_check_create(dentry, p_dentry, p_mnt,
+			    reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
+
+	if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
+		gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : reqmode &
+			       GR_APPEND ? " appending" : "");
+		return reqmode;
+	} else
+	    if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
+	{
+		gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : reqmode &
+			       GR_APPEND ? " appending" : "");
+		return 0;
+	} else if (unlikely((mode & reqmode) != reqmode))
+		return 0;
+
+	return reqmode;
+}
+
+__u32
+gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt,
+		     const int fmode)
+{
+	__u32 mode, reqmode = GR_FIND;
+
+	if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode))
+		reqmode |= GR_EXEC;
+	if (fmode & S_IWOTH)
+		reqmode |= GR_WRITE;
+	if (fmode & S_IROTH)
+		reqmode |= GR_READ;
+
+	mode =
+	    gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
+			   mnt);
+
+	if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
+		gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : "",
+			       reqmode & GR_EXEC ? " executing" : "");
+		return reqmode;
+	} else
+	    if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
+	{
+		gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : "",
+			       reqmode & GR_EXEC ? " executing" : "");
+		return 0;
+	} else if (unlikely((mode & reqmode) != reqmode))
+		return 0;
+
+	return reqmode;
+}
+
+static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt)
+{
+	__u32 mode;
+
+	mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt);
+
+	if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
+		gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt);
+		return mode;
+	} else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt);
+		return 0;
+	} else if (unlikely((mode & (reqmode)) != (reqmode)))
+		return 0;
+
+	return (reqmode);
+}
+
+__u32
+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt,
+		     umode_t *modeptr)
+{
+	umode_t mode;
+
+	*modeptr &= ~gr_acl_umask();
+	mode = *modeptr;
+
+	if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode)))
+		return 1;
+
+	if (unlikely(dentry->d_inode && !S_ISDIR(dentry->d_inode->i_mode) &&
+		     ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))) {
+		return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
+				   GR_CHMOD_ACL_MSG);
+	} else {
+		return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG);
+	}
+}
+
+__u32
+gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_setxattr(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_SETXATTR_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE,
+			   GR_UNIXCONNECT_ACL_MSG);
+}
+
+/* hardlinks require at minimum create and link permission,
+   any additional privilege required is based on the
+   privilege of the file being linked to
+*/
+__u32
+gr_acl_handle_link(const struct dentry * new_dentry,
+		   const struct dentry * parent_dentry,
+		   const struct vfsmount * parent_mnt,
+		   const struct dentry * old_dentry,
+		   const struct vfsmount * old_mnt, const struct filename *to)
+{
+	__u32 mode;
+	__u32 needmode = GR_CREATE | GR_LINK;
+	__u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK;
+
+	mode =
+	    gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry,
+			  old_mnt);
+
+	if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) {
+		gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
+		return mode;
+	} else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
+		return 0;
+	} else if (unlikely((mode & needmode) != needmode))
+		return 0;
+
+	return 1;
+}
+
+__u32
+gr_acl_handle_symlink(const struct dentry * new_dentry,
+		      const struct dentry * parent_dentry,
+		      const struct vfsmount * parent_mnt, const struct filename *from)
+{
+	__u32 needmode = GR_WRITE | GR_CREATE;
+	__u32 mode;
+
+	mode =
+	    gr_check_create(new_dentry, parent_dentry, parent_mnt,
+			    GR_CREATE | GR_AUDIT_CREATE |
+			    GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS);
+
+	if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) {
+		gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
+		return mode;
+	} else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
+		return 0;
+	} else if (unlikely((mode & needmode) != needmode))
+		return 0;
+
+	return (GR_WRITE | GR_CREATE);
+}
+
+static __u32 generic_fs_create_handler(const struct dentry *new_dentry, const struct dentry *parent_dentry, const struct vfsmount *parent_mnt, __u32 reqmode, const char *fmt)
+{
+	__u32 mode;
+
+	mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
+
+	if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
+		gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt);
+		return mode;
+	} else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt);
+		return 0;
+	} else if (unlikely((mode & (reqmode)) != (reqmode)))
+		return 0;
+
+	return (reqmode);
+}
+
+__u32
+gr_acl_handle_mknod(const struct dentry * new_dentry,
+		    const struct dentry * parent_dentry,
+		    const struct vfsmount * parent_mnt,
+		    const int mode)
+{
+	__u32 reqmode = GR_WRITE | GR_CREATE;
+	if (unlikely((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
+		reqmode |= GR_SETID;
+
+	return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
+				  reqmode, GR_MKNOD_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_mkdir(const struct dentry *new_dentry,
+		    const struct dentry *parent_dentry,
+		    const struct vfsmount *parent_mnt)
+{
+	return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
+				  GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG);
+}
+
+#define RENAME_CHECK_SUCCESS(old, new) \
+	(((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \
+	 ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)))
+
+int
+gr_acl_handle_rename(struct dentry *new_dentry,
+		     struct dentry *parent_dentry,
+		     const struct vfsmount *parent_mnt,
+		     struct dentry *old_dentry,
+		     struct inode *old_parent_inode,
+		     struct vfsmount *old_mnt, const struct filename *newname)
+{
+	__u32 comp1, comp2;
+	int error = 0;
+
+	if (unlikely(!gr_acl_is_enabled()))
+		return 0;
+
+	if (!new_dentry->d_inode) {
+		comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt,
+					GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ |
+					GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS);
+		comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE |
+				       GR_DELETE | GR_AUDIT_DELETE |
+				       GR_AUDIT_READ | GR_AUDIT_WRITE |
+				       GR_SUPPRESS, old_mnt);
+	} else {
+		comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
+				       GR_CREATE | GR_DELETE |
+				       GR_AUDIT_CREATE | GR_AUDIT_DELETE |
+				       GR_AUDIT_READ | GR_AUDIT_WRITE |
+				       GR_SUPPRESS, parent_mnt);
+		comp2 =
+		    gr_search_file(old_dentry,
+				   GR_READ | GR_WRITE | GR_AUDIT_READ |
+				   GR_DELETE | GR_AUDIT_DELETE |
+				   GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
+	}
+
+	if (RENAME_CHECK_SUCCESS(comp1, comp2) &&
+	    ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS)))
+		gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
+	else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS)
+		 && !(comp2 & GR_SUPPRESS)) {
+		gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
+		error = -EACCES;
+	} else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2)))
+		error = -EACCES;
+
+	return error;
+}
+
+void
+gr_acl_handle_exit(void)
+{
+	u16 id;
+	char *rolename;
+
+	if (unlikely(current->acl_sp_role && gr_acl_is_enabled() &&
+	    !(current->role->roletype & GR_ROLE_PERSIST))) {
+		id = current->acl_role_id;
+		rolename = current->role->rolename;
+		gr_set_acls(1);
+		gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id);
+	}
+
+	gr_put_exec_file(current);
+	return;
+}
+
+int
+gr_acl_handle_procpidmem(const struct task_struct *task)
+{
+	if (unlikely(!gr_acl_is_enabled()))
+		return 0;
+
+	if (task != current && task->acl->mode & GR_PROTPROCFD)
+		return -EACCES;
+
+	return 0;
+}
diff --git a/grsecurity/gracl_ip.c b/grsecurity/gracl_ip.c
new file mode 100644
index 0000000..8132048
--- /dev/null
+++ b/grsecurity/gracl_ip.c
@@ -0,0 +1,387 @@
+#include <linux/kernel.h>
+#include <asm/uaccess.h>
+#include <asm/errno.h>
+#include <net/sock.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/udp.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
+#include <linux/gracl.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+#define GR_BIND			0x01
+#define GR_CONNECT		0x02
+#define GR_INVERT		0x04
+#define GR_BINDOVERRIDE		0x08
+#define GR_CONNECTOVERRIDE	0x10
+#define GR_SOCK_FAMILY		0x20
+
+static const char * gr_protocols[IPPROTO_MAX] = {
+	"ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt",
+	"egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet",
+	"chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1",
+	"trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp",
+	"merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++",
+	"il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre",
+	"mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile",
+	"tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63",
+	"sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv",
+	"cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak", 
+	"iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf", 
+	"eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp",
+	"scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim",
+	"aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip",
+	"vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp",
+	"uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup",
+	"sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135",
+	"unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143",
+	"unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151",
+	"unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159",
+	"unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167",
+	"unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175",
+	"unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183",
+	"unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191",
+	"unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199",
+	"unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207",
+	"unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215",
+	"unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223",
+	"unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231",
+	"unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239",
+	"unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247",
+	"unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255",
+	};
+
+static const char * gr_socktypes[SOCK_MAX] = {
+	"unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6", 
+	"unknown:7", "unknown:8", "unknown:9", "packet"
+	};
+
+static const char * gr_sockfamilies[AF_MAX+1] = {
+	"unspec", "unix", "inet", "ax25", "ipx", "appletalk", "netrom", "bridge", "atmpvc", "x25",
+	"inet6", "rose", "decnet", "netbeui", "security", "key", "netlink", "packet", "ash",
+	"econet", "atmsvc", "rds", "sna", "irda", "ppox", "wanpipe", "llc", "fam_27", "fam_28",
+	"tipc", "bluetooth", "iucv", "rxrpc", "isdn", "phonet", "ieee802154", "ciaf"
+	};
+
+const char *
+gr_proto_to_name(unsigned char proto)
+{
+	return gr_protocols[proto];
+}
+
+const char *
+gr_socktype_to_name(unsigned char type)
+{
+	return gr_socktypes[type];
+}
+
+const char *
+gr_sockfamily_to_name(unsigned char family)
+{
+	return gr_sockfamilies[family];
+}
+
+int
+gr_search_socket(const int domain, const int type, const int protocol)
+{
+	struct acl_subject_label *curr;
+	const struct cred *cred = current_cred();
+
+	if (unlikely(!gr_acl_is_enabled()))
+		goto exit;
+
+	if ((domain < 0) || (type < 0) || (protocol < 0) ||
+	    (domain >= AF_MAX) || (type >= SOCK_MAX) || (protocol >= IPPROTO_MAX))
+		goto exit;	// let the kernel handle it
+
+	curr = current->acl;
+
+	if (curr->sock_families[domain / 32] & (1U << (domain % 32))) {
+		/* the family is allowed, if this is PF_INET allow it only if
+		   the extra sock type/protocol checks pass */
+		if (domain == PF_INET)
+			goto inet_check;
+		goto exit;
+	} else {
+		if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
+			__u32 fakeip = 0;
+			security_learn(GR_IP_LEARN_MSG, current->role->rolename,
+				       current->role->roletype, GR_GLOBAL_UID(cred->uid),
+				       GR_GLOBAL_GID(cred->gid), current->exec_file ?
+				       gr_to_filename(current->exec_file->f_path.dentry,
+				       current->exec_file->f_path.mnt) :
+				       curr->filename, curr->filename,
+				       &fakeip, domain, 0, 0, GR_SOCK_FAMILY,
+				       &current->signal->saved_ip);
+			goto exit;
+		}
+		goto exit_fail;
+	}
+
+inet_check:
+	/* the rest of this checking is for IPv4 only */
+	if (!curr->ips)
+		goto exit;
+
+	if ((curr->ip_type & (1U << type)) &&
+	    (curr->ip_proto[protocol / 32] & (1U << (protocol % 32))))
+		goto exit;
+
+	if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
+		/* we don't place acls on raw sockets , and sometimes
+		   dgram/ip sockets are opened for ioctl and not
+		   bind/connect, so we'll fake a bind learn log */
+		if (type == SOCK_RAW || type == SOCK_PACKET) {
+			__u32 fakeip = 0;
+			security_learn(GR_IP_LEARN_MSG, current->role->rolename,
+				       current->role->roletype, GR_GLOBAL_UID(cred->uid),
+				       GR_GLOBAL_GID(cred->gid), current->exec_file ?
+				       gr_to_filename(current->exec_file->f_path.dentry,
+				       current->exec_file->f_path.mnt) :
+				       curr->filename, curr->filename,
+				       &fakeip, 0, type,
+				       protocol, GR_CONNECT, &current->signal->saved_ip);
+		} else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) {
+			__u32 fakeip = 0;
+			security_learn(GR_IP_LEARN_MSG, current->role->rolename,
+				       current->role->roletype, GR_GLOBAL_UID(cred->uid),
+				       GR_GLOBAL_GID(cred->gid), current->exec_file ?
+				       gr_to_filename(current->exec_file->f_path.dentry,
+				       current->exec_file->f_path.mnt) :
+				       curr->filename, curr->filename,
+				       &fakeip, 0, type,
+				       protocol, GR_BIND, &current->signal->saved_ip);
+		}
+		/* we'll log when they use connect or bind */
+		goto exit;
+	}
+
+exit_fail:
+	if (domain == PF_INET)
+		gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(domain), 
+			    gr_socktype_to_name(type), gr_proto_to_name(protocol));
+	else
+#ifndef CONFIG_IPV6
+		if (domain != PF_INET6)
+#endif
+		gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(domain), 
+			    gr_socktype_to_name(type), protocol);
+
+	return 0;
+exit:
+	return 1;
+}
+
+int check_ip_policy(struct acl_ip_label *ip, __u32 ip_addr, __u16 ip_port, __u8 protocol, const int mode, const int type, __u32 our_addr, __u32 our_netmask)
+{
+	if ((ip->mode & mode) &&
+	    (ip_port >= ip->low) &&
+	    (ip_port <= ip->high) &&
+	    ((ntohl(ip_addr) & our_netmask) ==
+	     (ntohl(our_addr) & our_netmask))
+	    && (ip->proto[protocol / 32] & (1U << (protocol % 32)))
+	    && (ip->type & (1U << type))) {
+		if (ip->mode & GR_INVERT)
+			return 2; // specifically denied
+		else
+			return 1; // allowed
+	}
+
+	return 0; // not specifically allowed, may continue parsing
+}
+
+static int
+gr_search_connectbind(const int full_mode, struct sock *sk,
+		      struct sockaddr_in *addr, const int type)
+{
+	char iface[IFNAMSIZ] = {0};
+	struct acl_subject_label *curr;
+	struct acl_ip_label *ip;
+	struct inet_sock *isk;
+	struct net_device *dev;
+	struct in_device *idev;
+	unsigned long i;
+	int ret;
+	int mode = full_mode & (GR_BIND | GR_CONNECT);
+	__u32 ip_addr = 0;
+	__u32 our_addr;
+	__u32 our_netmask;
+	char *p;
+	__u16 ip_port = 0;
+	const struct cred *cred = current_cred();
+
+	if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET))
+		return 0;
+
+	curr = current->acl;
+	isk = inet_sk(sk);
+
+	/* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */
+	if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0)
+		addr->sin_addr.s_addr = curr->inaddr_any_override;
+	if ((full_mode & GR_CONNECT) && isk->inet_saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) {
+		struct sockaddr_in saddr;
+		int err;
+
+		saddr.sin_family = AF_INET;
+		saddr.sin_addr.s_addr = curr->inaddr_any_override;
+		saddr.sin_port = isk->inet_sport;
+
+		err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
+		if (err)
+			return err;
+
+		err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
+		if (err)
+			return err;
+	}
+
+	if (!curr->ips)
+		return 0;
+
+	ip_addr = addr->sin_addr.s_addr;
+	ip_port = ntohs(addr->sin_port);
+
+	if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
+		security_learn(GR_IP_LEARN_MSG, current->role->rolename,
+			       current->role->roletype, GR_GLOBAL_UID(cred->uid),
+			       GR_GLOBAL_GID(cred->gid), current->exec_file ?
+			       gr_to_filename(current->exec_file->f_path.dentry,
+			       current->exec_file->f_path.mnt) :
+			       curr->filename, curr->filename,
+			       &ip_addr, ip_port, type,
+			       sk->sk_protocol, mode, &current->signal->saved_ip);
+		return 0;
+	}
+
+	for (i = 0; i < curr->ip_num; i++) {
+		ip = *(curr->ips + i);
+		if (ip->iface != NULL) {
+			strncpy(iface, ip->iface, IFNAMSIZ - 1);
+			p = strchr(iface, ':');
+			if (p != NULL)
+				*p = '\0';
+			dev = dev_get_by_name(sock_net(sk), iface);
+			if (dev == NULL)
+				continue;
+			idev = in_dev_get(dev);
+			if (idev == NULL) {
+				dev_put(dev);
+				continue;
+			}
+			rcu_read_lock();
+			for_ifa(idev) {
+				if (!strcmp(ip->iface, ifa->ifa_label)) {
+					our_addr = ifa->ifa_address;
+					our_netmask = 0xffffffff;
+					ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
+					if (ret == 1) {
+						rcu_read_unlock();
+						in_dev_put(idev);
+						dev_put(dev);
+						return 0;
+					} else if (ret == 2) {
+						rcu_read_unlock();
+						in_dev_put(idev);
+						dev_put(dev);
+						goto denied;
+					}
+				}
+			} endfor_ifa(idev);
+			rcu_read_unlock();
+			in_dev_put(idev);
+			dev_put(dev);
+		} else {
+			our_addr = ip->addr;
+			our_netmask = ip->netmask;
+			ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
+			if (ret == 1)
+				return 0;
+			else if (ret == 2)
+				goto denied;
+		}
+	}
+
+denied:
+	if (mode == GR_BIND)
+		gr_log_int5_str2(GR_DONT_AUDIT, GR_BIND_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
+	else if (mode == GR_CONNECT)
+		gr_log_int5_str2(GR_DONT_AUDIT, GR_CONNECT_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
+
+	return -EACCES;
+}
+
+int
+gr_search_connect(struct socket *sock, struct sockaddr_in *addr)
+{
+	/* always allow disconnection of dgram sockets with connect */
+	if (addr->sin_family == AF_UNSPEC)
+		return 0;
+	return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type);
+}
+
+int
+gr_search_bind(struct socket *sock, struct sockaddr_in *addr)
+{
+	return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type);
+}
+
+int gr_search_listen(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+	struct sockaddr_in addr;
+
+	addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
+	addr.sin_port = inet_sk(sk)->inet_sport;
+
+	return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
+}
+
+int gr_search_accept(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+	struct sockaddr_in addr;
+
+	addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
+	addr.sin_port = inet_sk(sk)->inet_sport;
+
+	return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
+}
+
+int
+gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr)
+{
+	if (addr)
+		return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM);
+	else {
+		struct sockaddr_in sin;
+		const struct inet_sock *inet = inet_sk(sk);
+
+		sin.sin_addr.s_addr = inet->inet_daddr;
+		sin.sin_port = inet->inet_dport;
+
+		return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
+	}
+}
+
+int
+gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb)
+{
+	struct sockaddr_in sin;
+
+	if (unlikely(skb->len < sizeof (struct udphdr)))
+		return 0;	// skip this packet
+
+	sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
+	sin.sin_port = udp_hdr(skb)->source;
+
+	return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
+}
diff --git a/grsecurity/gracl_learn.c b/grsecurity/gracl_learn.c
new file mode 100644
index 0000000..25f54ef
--- /dev/null
+++ b/grsecurity/gracl_learn.c
@@ -0,0 +1,207 @@
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/poll.h>
+#include <linux/string.h>
+#include <linux/file.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+#include <linux/grinternal.h>
+
+extern ssize_t write_grsec_handler(struct file * file, const char __user * buf,
+				   size_t count, loff_t *ppos);
+extern int gr_acl_is_enabled(void);
+
+static DECLARE_WAIT_QUEUE_HEAD(learn_wait);
+static int gr_learn_attached;
+
+/* use a 512k buffer */
+#define LEARN_BUFFER_SIZE (512 * 1024)
+
+static DEFINE_SPINLOCK(gr_learn_lock);
+static DEFINE_MUTEX(gr_learn_user_mutex);
+
+/* we need to maintain two buffers, so that the kernel context of grlearn
+   uses a semaphore around the userspace copying, and the other kernel contexts
+   use a spinlock when copying into the buffer, since they cannot sleep
+*/
+static char *learn_buffer;
+static char *learn_buffer_user;
+static int learn_buffer_len;
+static int learn_buffer_user_len;
+
+static ssize_t
+read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	ssize_t retval = 0;
+
+	add_wait_queue(&learn_wait, &wait);
+	set_current_state(TASK_INTERRUPTIBLE);
+	do {
+		mutex_lock(&gr_learn_user_mutex);
+		spin_lock(&gr_learn_lock);
+		if (learn_buffer_len)
+			break;
+		spin_unlock(&gr_learn_lock);
+		mutex_unlock(&gr_learn_user_mutex);
+		if (file->f_flags & O_NONBLOCK) {
+			retval = -EAGAIN;
+			goto out;
+		}
+		if (signal_pending(current)) {
+			retval = -ERESTARTSYS;
+			goto out;
+		}
+
+		schedule();
+	} while (1);
+
+	memcpy(learn_buffer_user, learn_buffer, learn_buffer_len);
+	learn_buffer_user_len = learn_buffer_len;
+	retval = learn_buffer_len;
+	learn_buffer_len = 0;
+
+	spin_unlock(&gr_learn_lock);
+
+	if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len))
+		retval = -EFAULT;
+
+	mutex_unlock(&gr_learn_user_mutex);
+out:
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&learn_wait, &wait);
+	return retval;
+}
+
+static unsigned int
+poll_learn(struct file * file, poll_table * wait)
+{
+	poll_wait(file, &learn_wait, wait);
+
+	if (learn_buffer_len)
+		return (POLLIN | POLLRDNORM);
+
+	return 0;
+}
+
+void
+gr_clear_learn_entries(void)
+{
+	char *tmp;
+
+	mutex_lock(&gr_learn_user_mutex);
+	spin_lock(&gr_learn_lock);
+	tmp = learn_buffer;
+	learn_buffer = NULL;
+	spin_unlock(&gr_learn_lock);
+	if (tmp)
+		vfree(tmp);
+	if (learn_buffer_user != NULL) {
+		vfree(learn_buffer_user);
+		learn_buffer_user = NULL;
+	}
+	learn_buffer_len = 0;
+	mutex_unlock(&gr_learn_user_mutex);
+
+	return;
+}
+
+void
+gr_add_learn_entry(const char *fmt, ...)
+{
+	va_list args;
+	unsigned int len;
+
+	if (!gr_learn_attached)
+		return;
+
+	spin_lock(&gr_learn_lock);
+
+	/* leave a gap at the end so we know when it's "full" but don't have to
+	   compute the exact length of the string we're trying to append
+	*/
+	if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) {
+		spin_unlock(&gr_learn_lock);
+		wake_up_interruptible(&learn_wait);
+		return;
+	}
+	if (learn_buffer == NULL) {
+		spin_unlock(&gr_learn_lock);
+		return;
+	}
+
+	va_start(args, fmt);
+	len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args);
+	va_end(args);
+
+	learn_buffer_len += len + 1;
+
+	spin_unlock(&gr_learn_lock);
+	wake_up_interruptible(&learn_wait);
+
+	return;
+}
+
+static int
+open_learn(struct inode *inode, struct file *file)
+{
+	if (file->f_mode & FMODE_READ && gr_learn_attached)
+		return -EBUSY;
+	if (file->f_mode & FMODE_READ) {
+		int retval = 0;
+		mutex_lock(&gr_learn_user_mutex);
+		if (learn_buffer == NULL)
+			learn_buffer = vmalloc(LEARN_BUFFER_SIZE);
+		if (learn_buffer_user == NULL)
+			learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE);
+		if (learn_buffer == NULL) {
+			retval = -ENOMEM;
+			goto out_error;
+		}
+		if (learn_buffer_user == NULL) {
+			retval = -ENOMEM;
+			goto out_error;
+		}
+		learn_buffer_len = 0;
+		learn_buffer_user_len = 0;
+		gr_learn_attached = 1;
+out_error:
+		mutex_unlock(&gr_learn_user_mutex);
+		return retval;
+	}
+	return 0;
+}
+
+static int
+close_learn(struct inode *inode, struct file *file)
+{
+	if (file->f_mode & FMODE_READ) {
+		char *tmp = NULL;
+		mutex_lock(&gr_learn_user_mutex);
+		spin_lock(&gr_learn_lock);
+		tmp = learn_buffer;
+		learn_buffer = NULL;
+		spin_unlock(&gr_learn_lock);
+		if (tmp)
+			vfree(tmp);
+		if (learn_buffer_user != NULL) {
+			vfree(learn_buffer_user);
+			learn_buffer_user = NULL;
+		}
+		learn_buffer_len = 0;
+		learn_buffer_user_len = 0;
+		gr_learn_attached = 0;
+		mutex_unlock(&gr_learn_user_mutex);
+	}
+
+	return 0;
+}
+		
+const struct file_operations grsec_fops = {
+	.read		= read_learn,
+	.write		= write_grsec_handler,
+	.open		= open_learn,
+	.release	= close_learn,
+	.poll		= poll_learn,
+};
diff --git a/grsecurity/gracl_res.c b/grsecurity/gracl_res.c
new file mode 100644
index 0000000..39645c9
--- /dev/null
+++ b/grsecurity/gracl_res.c
@@ -0,0 +1,68 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/gracl.h>
+#include <linux/grinternal.h>
+
+static const char *restab_log[] = {
+	[RLIMIT_CPU] = "RLIMIT_CPU",
+	[RLIMIT_FSIZE] = "RLIMIT_FSIZE",
+	[RLIMIT_DATA] = "RLIMIT_DATA",
+	[RLIMIT_STACK] = "RLIMIT_STACK",
+	[RLIMIT_CORE] = "RLIMIT_CORE",
+	[RLIMIT_RSS] = "RLIMIT_RSS",
+	[RLIMIT_NPROC] = "RLIMIT_NPROC",
+	[RLIMIT_NOFILE] = "RLIMIT_NOFILE",
+	[RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK",
+	[RLIMIT_AS] = "RLIMIT_AS",
+	[RLIMIT_LOCKS] = "RLIMIT_LOCKS",
+	[RLIMIT_SIGPENDING] = "RLIMIT_SIGPENDING",
+	[RLIMIT_MSGQUEUE] = "RLIMIT_MSGQUEUE",
+	[RLIMIT_NICE] = "RLIMIT_NICE",
+	[RLIMIT_RTPRIO] = "RLIMIT_RTPRIO",
+	[RLIMIT_RTTIME] = "RLIMIT_RTTIME",
+	[GR_CRASH_RES] = "RLIMIT_CRASH"
+};
+
+void
+gr_log_resource(const struct task_struct *task,
+		const int res, const unsigned long wanted, const int gt)
+{
+	const struct cred *cred;
+	unsigned long rlim;
+
+	if (!gr_acl_is_enabled() && !grsec_resource_logging)
+		return;
+
+	// not yet supported resource
+	if (unlikely(!restab_log[res]))
+		return;
+
+	if (res == RLIMIT_CPU || res == RLIMIT_RTTIME)
+		rlim = task_rlimit_max(task, res);
+	else
+		rlim = task_rlimit(task, res);
+
+	if (likely((rlim == RLIM_INFINITY) || (gt && wanted <= rlim) || (!gt && wanted < rlim)))
+		return;
+
+	rcu_read_lock();
+	cred = __task_cred(task);
+
+	if (res == RLIMIT_NPROC && 
+	    (cap_raised(cred->cap_effective, CAP_SYS_ADMIN) || 
+	     cap_raised(cred->cap_effective, CAP_SYS_RESOURCE)))
+		goto out_rcu_unlock;
+	else if (res == RLIMIT_MEMLOCK &&
+		 cap_raised(cred->cap_effective, CAP_IPC_LOCK))
+		goto out_rcu_unlock;
+	else if (res == RLIMIT_NICE && cap_raised(cred->cap_effective, CAP_SYS_NICE))
+		goto out_rcu_unlock;
+	rcu_read_unlock();
+
+	gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], rlim);
+
+	return;
+out_rcu_unlock:
+	rcu_read_unlock();
+	return;
+}
diff --git a/grsecurity/gracl_segv.c b/grsecurity/gracl_segv.c
new file mode 100644
index 0000000..4dcc92a
--- /dev/null
+++ b/grsecurity/gracl_segv.c
@@ -0,0 +1,305 @@
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <asm/uaccess.h>
+#include <asm/errno.h>
+#include <asm/mman.h>
+#include <net/sock.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/gracl.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
+#include <linux/magic.h>
+#include <linux/pagemap.h>
+#include "../fs/btrfs/async-thread.h"
+#include "../fs/btrfs/ctree.h"
+#include "../fs/btrfs/btrfs_inode.h"
+#endif
+
+static struct crash_uid *uid_set;
+static unsigned short uid_used;
+static DEFINE_SPINLOCK(gr_uid_lock);
+extern rwlock_t gr_inode_lock;
+extern struct acl_subject_label *
+	lookup_acl_subj_label(const ino_t inode, const dev_t dev,
+			      struct acl_role_label *role);
+
+static inline dev_t __get_dev(const struct dentry *dentry)
+{
+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
+	if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
+		return BTRFS_I(dentry->d_inode)->root->anon_dev;
+	else
+#endif
+		return dentry->d_sb->s_dev;
+}
+
+int
+gr_init_uidset(void)
+{
+	uid_set =
+	    kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL);
+	uid_used = 0;
+
+	return uid_set ? 1 : 0;
+}
+
+void
+gr_free_uidset(void)
+{
+	if (uid_set)
+		kfree(uid_set);
+
+	return;
+}
+
+int
+gr_find_uid(const uid_t uid)
+{
+	struct crash_uid *tmp = uid_set;
+	uid_t buid;
+	int low = 0, high = uid_used - 1, mid;
+
+	while (high >= low) {
+		mid = (low + high) >> 1;
+		buid = tmp[mid].uid;
+		if (buid == uid)
+			return mid;
+		if (buid > uid)
+			high = mid - 1;
+		if (buid < uid)
+			low = mid + 1;
+	}
+
+	return -1;
+}
+
+static __inline__ void
+gr_insertsort(void)
+{
+	unsigned short i, j;
+	struct crash_uid index;
+
+	for (i = 1; i < uid_used; i++) {
+		index = uid_set[i];
+		j = i;
+		while ((j > 0) && uid_set[j - 1].uid > index.uid) {
+			uid_set[j] = uid_set[j - 1];
+			j--;
+		}
+		uid_set[j] = index;
+	}
+
+	return;
+}
+
+static __inline__ void
+gr_insert_uid(const kuid_t kuid, const unsigned long expires)
+{
+	int loc;
+	uid_t uid = GR_GLOBAL_UID(kuid);
+
+	if (uid_used == GR_UIDTABLE_MAX)
+		return;
+
+	loc = gr_find_uid(uid);
+
+	if (loc >= 0) {
+		uid_set[loc].expires = expires;
+		return;
+	}
+
+	uid_set[uid_used].uid = uid;
+	uid_set[uid_used].expires = expires;
+	uid_used++;
+
+	gr_insertsort();
+
+	return;
+}
+
+void
+gr_remove_uid(const unsigned short loc)
+{
+	unsigned short i;
+
+	for (i = loc + 1; i < uid_used; i++)
+		uid_set[i - 1] = uid_set[i];
+
+	uid_used--;
+
+	return;
+}
+
+int
+gr_check_crash_uid(const kuid_t kuid)
+{
+	int loc;
+	int ret = 0;
+	uid_t uid;
+
+	if (unlikely(!gr_acl_is_enabled()))
+		return 0;
+
+	uid = GR_GLOBAL_UID(kuid);
+
+	spin_lock(&gr_uid_lock);
+	loc = gr_find_uid(uid);
+
+	if (loc < 0)
+		goto out_unlock;
+
+	if (time_before_eq(uid_set[loc].expires, get_seconds()))
+		gr_remove_uid(loc);
+	else
+		ret = 1;
+
+out_unlock:
+	spin_unlock(&gr_uid_lock);
+	return ret;
+}
+
+static __inline__ int
+proc_is_setxid(const struct cred *cred)
+{
+	if (!uid_eq(cred->uid, cred->euid) || !uid_eq(cred->uid, cred->suid) ||
+	    !uid_eq(cred->uid, cred->fsuid))
+		return 1;
+	if (!gid_eq(cred->gid, cred->egid) || !gid_eq(cred->gid, cred->sgid) ||
+	    !gid_eq(cred->gid, cred->fsgid))
+		return 1;
+
+	return 0;
+}
+
+extern int gr_fake_force_sig(int sig, struct task_struct *t);
+
+void
+gr_handle_crash(struct task_struct *task, const int sig)
+{
+	struct acl_subject_label *curr;
+	struct task_struct *tsk, *tsk2;
+	const struct cred *cred;
+	const struct cred *cred2;
+
+	if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL)
+		return;
+
+	if (unlikely(!gr_acl_is_enabled()))
+		return;
+
+	curr = task->acl;
+
+	if (!(curr->resmask & (1U << GR_CRASH_RES)))
+		return;
+
+	if (time_before_eq(curr->expires, get_seconds())) {
+		curr->expires = 0;
+		curr->crashes = 0;
+	}
+
+	curr->crashes++;
+
+	if (!curr->expires)
+		curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max;
+
+	if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
+	    time_after(curr->expires, get_seconds())) {
+		rcu_read_lock();
+		cred = __task_cred(task);
+		if (gr_is_global_nonroot(cred->uid) && proc_is_setxid(cred)) {
+			gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
+			spin_lock(&gr_uid_lock);
+			gr_insert_uid(cred->uid, curr->expires);
+			spin_unlock(&gr_uid_lock);
+			curr->expires = 0;
+			curr->crashes = 0;
+			read_lock(&tasklist_lock);
+			do_each_thread(tsk2, tsk) {
+				cred2 = __task_cred(tsk);
+				if (tsk != task && uid_eq(cred2->uid, cred->uid))
+					gr_fake_force_sig(SIGKILL, tsk);
+			} while_each_thread(tsk2, tsk);
+			read_unlock(&tasklist_lock);
+		} else {
+			gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
+			read_lock(&tasklist_lock);
+			read_lock(&grsec_exec_file_lock);
+			do_each_thread(tsk2, tsk) {
+				if (likely(tsk != task)) {
+					// if this thread has the same subject as the one that triggered
+					// RES_CRASH and it's the same binary, kill it
+					if (tsk->acl == task->acl && tsk->exec_file == task->exec_file)
+						gr_fake_force_sig(SIGKILL, tsk);
+				}
+			} while_each_thread(tsk2, tsk);
+			read_unlock(&grsec_exec_file_lock);
+			read_unlock(&tasklist_lock);
+		}
+		rcu_read_unlock();
+	}
+
+	return;
+}
+
+int
+gr_check_crash_exec(const struct file *filp)
+{
+	struct acl_subject_label *curr;
+
+	if (unlikely(!gr_acl_is_enabled()))
+		return 0;
+
+	read_lock(&gr_inode_lock);
+	curr = lookup_acl_subj_label(filp->f_path.dentry->d_inode->i_ino,
+				     __get_dev(filp->f_path.dentry),
+				     current->role);
+	read_unlock(&gr_inode_lock);
+
+	if (!curr || !(curr->resmask & (1U << GR_CRASH_RES)) ||
+	    (!curr->crashes && !curr->expires))
+		return 0;
+
+	if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
+	    time_after(curr->expires, get_seconds()))
+		return 1;
+	else if (time_before_eq(curr->expires, get_seconds())) {
+		curr->crashes = 0;
+		curr->expires = 0;
+	}
+
+	return 0;
+}
+
+void
+gr_handle_alertkill(struct task_struct *task)
+{
+	struct acl_subject_label *curracl;
+	__u32 curr_ip;
+	struct task_struct *p, *p2;
+
+	if (unlikely(!gr_acl_is_enabled()))
+		return;
+
+	curracl = task->acl;
+	curr_ip = task->signal->curr_ip;
+
+	if ((curracl->mode & GR_KILLIPPROC) && curr_ip) {
+		read_lock(&tasklist_lock);
+		do_each_thread(p2, p) {
+			if (p->signal->curr_ip == curr_ip)
+				gr_fake_force_sig(SIGKILL, p);
+		} while_each_thread(p2, p);
+		read_unlock(&tasklist_lock);
+	} else if (curracl->mode & GR_KILLPROC)
+		gr_fake_force_sig(SIGKILL, task);
+
+	return;
+}
diff --git a/grsecurity/gracl_shm.c b/grsecurity/gracl_shm.c
new file mode 100644
index 0000000..98011b0
--- /dev/null
+++ b/grsecurity/gracl_shm.c
@@ -0,0 +1,40 @@
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/ipc.h>
+#include <linux/gracl.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+int
+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
+		const time_t shm_createtime, const kuid_t cuid, const int shmid)
+{
+	struct task_struct *task;
+
+	if (!gr_acl_is_enabled())
+		return 1;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+
+	task = find_task_by_vpid(shm_cprid);
+
+	if (unlikely(!task))
+		task = find_task_by_vpid(shm_lapid);
+
+	if (unlikely(task && (time_before_eq((unsigned long)task->start_time.tv_sec, (unsigned long)shm_createtime) ||
+			      (task_pid_nr(task) == shm_lapid)) &&
+		     (task->acl->mode & GR_PROTSHM) &&
+		     (task->acl != current->acl))) {
+		read_unlock(&tasklist_lock);
+		rcu_read_unlock();
+		gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, GR_GLOBAL_UID(cuid), shm_cprid, shmid);
+		return 0;
+	}
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	return 1;
+}
diff --git a/grsecurity/grsec_chdir.c b/grsecurity/grsec_chdir.c
new file mode 100644
index 0000000..bc0be01
--- /dev/null
+++ b/grsecurity/grsec_chdir.c
@@ -0,0 +1,19 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+void
+gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
+	if ((grsec_enable_chdir && grsec_enable_group &&
+	     in_group_p(grsec_audit_gid)) || (grsec_enable_chdir &&
+					      !grsec_enable_group)) {
+		gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt);
+	}
+#endif
+	return;
+}
diff --git a/grsecurity/grsec_chroot.c b/grsecurity/grsec_chroot.c
new file mode 100644
index 0000000..bd6e105
--- /dev/null
+++ b/grsecurity/grsec_chroot.c
@@ -0,0 +1,370 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/mount.h>
+#include <linux/types.h>
+#include "../fs/mount.h"
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
+static int gr_init_ran;
+#endif
+
+void gr_set_chroot_entries(struct task_struct *task, const struct path *path)
+{
+#ifdef CONFIG_GRKERNSEC
+	if (task_pid_nr(task) > 1 && path->dentry != init_task.fs->root.dentry &&
+	    		     path->dentry != task->nsproxy->mnt_ns->root->mnt.mnt_root
+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
+			     && gr_init_ran
+#endif
+	   )
+		task->gr_is_chrooted = 1;
+	else {
+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
+		if (task_pid_nr(task) == 1 && !gr_init_ran)
+			gr_init_ran = 1;
+#endif
+		task->gr_is_chrooted = 0;
+	}
+
+	task->gr_chroot_dentry = path->dentry;
+#endif
+	return;
+}
+
+void gr_clear_chroot_entries(struct task_struct *task)
+{
+#ifdef CONFIG_GRKERNSEC
+	task->gr_is_chrooted = 0;
+	task->gr_chroot_dentry = NULL;
+#endif
+	return;
+}	
+
+int
+gr_handle_chroot_unix(const pid_t pid)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
+	struct task_struct *p;
+
+	if (unlikely(!grsec_enable_chroot_unix))
+		return 1;
+
+	if (likely(!proc_is_chrooted(current)))
+		return 1;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	p = find_task_by_vpid_unrestricted(pid);
+	if (unlikely(p && !have_same_root(current, p))) {
+		read_unlock(&tasklist_lock);
+		rcu_read_unlock();
+		gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG);
+		return 0;
+	}
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+#endif
+	return 1;
+}
+
+int
+gr_handle_chroot_nice(void)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
+	if (grsec_enable_chroot_nice && proc_is_chrooted(current)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_chroot_setpriority(struct task_struct *p, const int niceval)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
+	if (grsec_enable_chroot_nice && (niceval < task_nice(p))
+			&& proc_is_chrooted(current)) {
+		gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, task_pid_nr(p));
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_chroot_fowner(struct pid *pid, enum pid_type type)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+	struct task_struct *p;
+	int ret = 0;
+	if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || !pid)
+		return ret;
+
+	read_lock(&tasklist_lock);
+	do_each_pid_task(pid, type, p) {
+		if (!have_same_root(current, p)) {
+			ret = 1;
+			goto out;
+		}
+	} while_each_pid_task(pid, type, p);
+out:
+	read_unlock(&tasklist_lock);
+	return ret;
+#endif
+	return 0;
+}
+
+int
+gr_pid_is_chrooted(struct task_struct *p)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+	if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL)
+		return 0;
+
+	if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) ||
+	    !have_same_root(current, p)) {
+		return 1;
+	}
+#endif
+	return 0;
+}
+
+EXPORT_SYMBOL(gr_pid_is_chrooted);
+
+#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR)
+int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt)
+{
+	struct path path, currentroot;
+	int ret = 0;
+
+	path.dentry = (struct dentry *)u_dentry;
+	path.mnt = (struct vfsmount *)u_mnt;
+	get_fs_root(current->fs, &currentroot);
+	if (path_is_under(&path, &currentroot))
+		ret = 1;
+	path_put(&currentroot);
+
+	return ret;
+}
+#endif
+
+int
+gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
+	if (!grsec_enable_chroot_fchdir)
+		return 1;
+
+	if (!proc_is_chrooted(current))
+		return 1;
+	else if (!gr_is_outside_chroot(u_dentry, u_mnt)) {
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt);
+		return 0;
+	}
+#endif
+	return 1;
+}
+
+int
+gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
+		const time_t shm_createtime)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
+	struct task_struct *p;
+	time_t starttime;
+
+	if (unlikely(!grsec_enable_chroot_shmat))
+		return 1;
+
+	if (likely(!proc_is_chrooted(current)))
+		return 1;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+
+	if ((p = find_task_by_vpid_unrestricted(shm_cprid))) {
+		starttime = p->start_time.tv_sec;
+		if (time_before_eq((unsigned long)starttime, (unsigned long)shm_createtime)) {
+			if (have_same_root(current, p)) {
+				goto allow;
+			} else {
+				read_unlock(&tasklist_lock);
+				rcu_read_unlock();
+				gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
+				return 0;
+			}
+		}
+		/* creator exited, pid reuse, fall through to next check */
+	}
+	if ((p = find_task_by_vpid_unrestricted(shm_lapid))) {
+		if (unlikely(!have_same_root(current, p))) {
+			read_unlock(&tasklist_lock);
+			rcu_read_unlock();
+			gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
+			return 0;
+		}
+	}
+
+allow:
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+#endif
+	return 1;
+}
+
+void
+gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
+	if (grsec_enable_chroot_execlog && proc_is_chrooted(current))
+		gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt);
+#endif
+	return;
+}
+
+int
+gr_handle_chroot_mknod(const struct dentry *dentry,
+		       const struct vfsmount *mnt, const int mode)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
+	if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) && 
+	    proc_is_chrooted(current)) {
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_chroot_mount(const struct dentry *dentry,
+		       const struct vfsmount *mnt, const char *dev_name)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
+	if (grsec_enable_chroot_mount && proc_is_chrooted(current)) {
+		gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name ? dev_name : "none", dentry, mnt);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_chroot_pivot(void)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
+	if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
+	if (grsec_enable_chroot_double && proc_is_chrooted(current) &&
+	    !gr_is_outside_chroot(dentry, mnt)) {
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+extern const char *captab_log[];
+extern int captab_log_entries;
+
+int
+gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
+		kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
+		if (cap_raised(chroot_caps, cap)) {
+			if (cap_raised(cred->cap_effective, cap) && cap < captab_log_entries) {
+				gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, task, captab_log[cap]);
+			}
+			return 0;
+		}
+	}
+#endif
+	return 1;
+}
+
+int
+gr_chroot_is_capable(const int cap)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	return gr_task_chroot_is_capable(current, current_cred(), cap);
+#endif
+	return 1;
+}
+
+int
+gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
+		kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
+		if (cap_raised(chroot_caps, cap)) {
+			return 0;
+		}
+	}
+#endif
+	return 1;
+}
+
+int
+gr_chroot_is_capable_nolog(const int cap)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	return gr_task_chroot_is_capable_nolog(current, cap);
+#endif
+	return 1;
+}
+
+int
+gr_handle_chroot_sysctl(const int op)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
+	if (grsec_enable_chroot_sysctl && (op & MAY_WRITE) &&
+	    proc_is_chrooted(current))
+		return -EACCES;
+#endif
+	return 0;
+}
+
+void
+gr_handle_chroot_chdir(const struct path *path)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
+	if (grsec_enable_chroot_chdir)
+		set_fs_pwd(current->fs, path);
+#endif
+	return;
+}
+
+int
+gr_handle_chroot_chmod(const struct dentry *dentry,
+		       const struct vfsmount *mnt, const int mode)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
+	/* allow chmod +s on directories, but not files */
+	if (grsec_enable_chroot_chmod && !S_ISDIR(dentry->d_inode->i_mode) &&
+	    ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) &&
+	    proc_is_chrooted(current)) {
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_disabled.c b/grsecurity/grsec_disabled.c
new file mode 100644
index 0000000..ce65ceb
--- /dev/null
+++ b/grsecurity/grsec_disabled.c
@@ -0,0 +1,434 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/kdev_t.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/skbuff.h>
+#include <linux/sysctl.h>
+
+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
+void
+pax_set_initial_flags(struct linux_binprm *bprm)
+{
+	return;
+}
+#endif
+
+#ifdef CONFIG_SYSCTL
+__u32
+gr_handle_sysctl(const struct ctl_table * table, const int op)
+{
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_TASKSTATS
+int gr_is_taskstats_denied(int pid)
+{
+	return 0;
+}
+#endif
+
+int
+gr_acl_is_enabled(void)
+{
+	return 0;
+}
+
+void
+gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode) 
+{
+	return;
+}
+
+int
+gr_handle_rawio(const struct inode *inode)
+{
+	return 0;
+}
+
+void
+gr_acl_handle_psacct(struct task_struct *task, const long code)
+{
+	return;
+}
+
+int
+gr_handle_ptrace(struct task_struct *task, const long request)
+{
+	return 0;
+}
+
+int
+gr_handle_proc_ptrace(struct task_struct *task)
+{
+	return 0;
+}
+
+int
+gr_set_acls(const int type)
+{
+	return 0;
+}
+
+int
+gr_check_hidden_task(const struct task_struct *tsk)
+{
+	return 0;
+}
+
+int
+gr_check_protected_task(const struct task_struct *task)
+{
+	return 0;
+}
+
+int
+gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
+{
+	return 0;
+}
+
+void
+gr_copy_label(struct task_struct *tsk)
+{
+	return;
+}
+
+void
+gr_set_pax_flags(struct task_struct *task)
+{
+	return;
+}
+
+int
+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
+		  const int unsafe_share)
+{
+	return 0;
+}
+
+void
+gr_handle_delete(const ino_t ino, const dev_t dev)
+{
+	return;
+}
+
+void
+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return;
+}
+
+void
+gr_handle_crash(struct task_struct *task, const int sig)
+{
+	return;
+}
+
+int
+gr_check_crash_exec(const struct file *filp)
+{
+	return 0;
+}
+
+int
+gr_check_crash_uid(const kuid_t uid)
+{
+	return 0;
+}
+
+void
+gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
+		 struct dentry *old_dentry,
+		 struct dentry *new_dentry,
+		 struct vfsmount *mnt, const __u8 replace)
+{
+	return;
+}
+
+int
+gr_search_socket(const int family, const int type, const int protocol)
+{
+	return 1;
+}
+
+int
+gr_search_connectbind(const int mode, const struct socket *sock,
+		      const struct sockaddr_in *addr)
+{
+	return 0;
+}
+
+void
+gr_handle_alertkill(struct task_struct *task)
+{
+	return;
+}
+
+__u32
+gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_hidden_file(const struct dentry * dentry,
+			  const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
+		   int acc_mode)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+int
+gr_acl_handle_mmap(const struct file *file, const unsigned long prot,
+		   unsigned int *vm_flags)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_truncate(const struct dentry * dentry,
+		       const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_access(const struct dentry * dentry,
+		     const struct vfsmount * mnt, const int fmode)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt,
+		    umode_t *mode)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_setxattr(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+void
+grsecurity_init(void)
+{
+	return;
+}
+
+umode_t gr_acl_umask(void)
+{
+	return 0;
+}
+
+__u32
+gr_acl_handle_mknod(const struct dentry * new_dentry,
+		    const struct dentry * parent_dentry,
+		    const struct vfsmount * parent_mnt,
+		    const int mode)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_mkdir(const struct dentry * new_dentry,
+		    const struct dentry * parent_dentry,
+		    const struct vfsmount * parent_mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_symlink(const struct dentry * new_dentry,
+		      const struct dentry * parent_dentry,
+		      const struct vfsmount * parent_mnt, const struct filename *from)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_link(const struct dentry * new_dentry,
+		   const struct dentry * parent_dentry,
+		   const struct vfsmount * parent_mnt,
+		   const struct dentry * old_dentry,
+		   const struct vfsmount * old_mnt, const struct filename *to)
+{
+	return 1;
+}
+
+int
+gr_acl_handle_rename(const struct dentry *new_dentry,
+		     const struct dentry *parent_dentry,
+		     const struct vfsmount *parent_mnt,
+		     const struct dentry *old_dentry,
+		     const struct inode *old_parent_inode,
+		     const struct vfsmount *old_mnt, const struct filename *newname)
+{
+	return 0;
+}
+
+int
+gr_acl_handle_filldir(const struct file *file, const char *name,
+		      const int namelen, const ino_t ino)
+{
+	return 1;
+}
+
+int
+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
+		const time_t shm_createtime, const kuid_t cuid, const int shmid)
+{
+	return 1;
+}
+
+int
+gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr)
+{
+	return 0;
+}
+
+int
+gr_search_accept(const struct socket *sock)
+{
+	return 0;
+}
+
+int
+gr_search_listen(const struct socket *sock)
+{
+	return 0;
+}
+
+int
+gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr)
+{
+	return 0;
+}
+
+__u32
+gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_creat(const struct dentry * dentry,
+		    const struct dentry * p_dentry,
+		    const struct vfsmount * p_mnt, int open_flags, int acc_mode,
+		    const int imode)
+{
+	return 1;
+}
+
+void
+gr_acl_handle_exit(void)
+{
+	return;
+}
+
+int
+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
+{
+	return 1;
+}
+
+void
+gr_set_role_label(const kuid_t uid, const kgid_t gid)
+{
+	return;
+}
+
+int
+gr_acl_handle_procpidmem(const struct task_struct *task)
+{
+	return 0;
+}
+
+int
+gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb)
+{
+	return 0;
+}
+
+int
+gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr)
+{
+	return 0;
+}
+
+void
+gr_set_kernel_label(struct task_struct *task)
+{
+	return;
+}
+
+int
+gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
+{
+	return 0;
+}
+
+int
+gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
+{
+	return 0;
+}
+
+int gr_acl_enable_at_secure(void)
+{
+	return 0;
+}
+
+dev_t gr_get_dev_from_dentry(struct dentry *dentry)
+{
+	return dentry->d_sb->s_dev;
+}
+
+void gr_put_exec_file(struct task_struct *task)
+{
+	return;
+}
+
+EXPORT_SYMBOL(gr_set_kernel_label);
+#ifdef CONFIG_SECURITY
+EXPORT_SYMBOL(gr_check_user_change);
+EXPORT_SYMBOL(gr_check_group_change);
+#endif
diff --git a/grsecurity/grsec_exec.c b/grsecurity/grsec_exec.c
new file mode 100644
index 0000000..387032b
--- /dev/null
+++ b/grsecurity/grsec_exec.c
@@ -0,0 +1,187 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/binfmts.h>
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/grdefs.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/capability.h>
+#include <linux/module.h>
+#include <linux/compat.h>
+
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_GRKERNSEC_EXECLOG
+static char gr_exec_arg_buf[132];
+static DEFINE_MUTEX(gr_exec_arg_mutex);
+#endif
+
+struct user_arg_ptr {
+#ifdef CONFIG_COMPAT
+	bool is_compat;
+#endif
+	union {
+		const char __user *const __user *native;
+#ifdef CONFIG_COMPAT
+		const compat_uptr_t __user *compat;
+#endif
+	} ptr;
+};
+
+extern const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr);
+
+void
+gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv)
+{
+#ifdef CONFIG_GRKERNSEC_EXECLOG
+	char *grarg = gr_exec_arg_buf;
+	unsigned int i, x, execlen = 0;
+	char c;
+
+	if (!((grsec_enable_execlog && grsec_enable_group &&
+	       in_group_p(grsec_audit_gid))
+	      || (grsec_enable_execlog && !grsec_enable_group)))
+		return;
+
+	mutex_lock(&gr_exec_arg_mutex);
+	memset(grarg, 0, sizeof(gr_exec_arg_buf));
+
+	for (i = 0; i < bprm->argc && execlen < 128; i++) {
+		const char __user *p;
+		unsigned int len;
+
+		p = get_user_arg_ptr(argv, i);
+		if (IS_ERR(p))
+			goto log;
+
+		len = strnlen_user(p, 128 - execlen);
+		if (len > 128 - execlen)
+			len = 128 - execlen;
+		else if (len > 0)
+			len--;
+		if (copy_from_user(grarg + execlen, p, len))
+			goto log;
+
+		/* rewrite unprintable characters */
+		for (x = 0; x < len; x++) {
+			c = *(grarg + execlen + x);
+			if (c < 32 || c > 126)
+				*(grarg + execlen + x) = ' ';
+		}
+
+		execlen += len;
+		*(grarg + execlen) = ' ';
+		*(grarg + execlen + 1) = '\0';
+		execlen++;
+	}
+
+      log:
+	gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry,
+			bprm->file->f_path.mnt, grarg);
+	mutex_unlock(&gr_exec_arg_mutex);
+#endif
+	return;
+}
+
+#ifdef CONFIG_GRKERNSEC
+extern int gr_acl_is_capable(const int cap);
+extern int gr_acl_is_capable_nolog(const int cap);
+extern int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
+extern int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap);
+extern int gr_chroot_is_capable(const int cap);
+extern int gr_chroot_is_capable_nolog(const int cap);
+extern int gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
+extern int gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap);
+#endif
+
+const char *captab_log[] = {
+	"CAP_CHOWN",
+	"CAP_DAC_OVERRIDE",
+	"CAP_DAC_READ_SEARCH",
+	"CAP_FOWNER",
+	"CAP_FSETID",
+	"CAP_KILL",
+	"CAP_SETGID",
+	"CAP_SETUID",
+	"CAP_SETPCAP",
+	"CAP_LINUX_IMMUTABLE",
+	"CAP_NET_BIND_SERVICE",
+	"CAP_NET_BROADCAST",
+	"CAP_NET_ADMIN",
+	"CAP_NET_RAW",
+	"CAP_IPC_LOCK",
+	"CAP_IPC_OWNER",
+	"CAP_SYS_MODULE",
+	"CAP_SYS_RAWIO",
+	"CAP_SYS_CHROOT",
+	"CAP_SYS_PTRACE",
+	"CAP_SYS_PACCT",
+	"CAP_SYS_ADMIN",
+	"CAP_SYS_BOOT",
+	"CAP_SYS_NICE",
+	"CAP_SYS_RESOURCE",
+	"CAP_SYS_TIME",
+	"CAP_SYS_TTY_CONFIG",
+	"CAP_MKNOD",
+	"CAP_LEASE",
+	"CAP_AUDIT_WRITE",
+	"CAP_AUDIT_CONTROL",
+	"CAP_SETFCAP",
+	"CAP_MAC_OVERRIDE",
+	"CAP_MAC_ADMIN",
+	"CAP_SYSLOG",
+	"CAP_WAKE_ALARM"
+};
+
+int captab_log_entries = sizeof(captab_log)/sizeof(captab_log[0]);
+
+int gr_is_capable(const int cap)
+{
+#ifdef CONFIG_GRKERNSEC
+	if (gr_acl_is_capable(cap) && gr_chroot_is_capable(cap))
+		return 1;
+	return 0;
+#else
+	return 1;
+#endif
+}
+
+int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
+{
+#ifdef CONFIG_GRKERNSEC
+	if (gr_task_acl_is_capable(task, cred, cap) && gr_task_chroot_is_capable(task, cred, cap))
+		return 1;
+	return 0;
+#else
+	return 1;
+#endif
+}
+
+int gr_is_capable_nolog(const int cap)
+{
+#ifdef CONFIG_GRKERNSEC
+	if (gr_acl_is_capable_nolog(cap) && gr_chroot_is_capable_nolog(cap))
+		return 1;
+	return 0;
+#else
+	return 1;
+#endif
+}
+
+int gr_task_is_capable_nolog(const struct task_struct *task, const int cap)
+{
+#ifdef CONFIG_GRKERNSEC
+	if (gr_task_acl_is_capable_nolog(task, cap) && gr_task_chroot_is_capable_nolog(task, cap))
+		return 1;
+	return 0;
+#else
+	return 1;
+#endif
+}
+
+EXPORT_SYMBOL(gr_is_capable);
+EXPORT_SYMBOL(gr_is_capable_nolog);
+EXPORT_SYMBOL(gr_task_is_capable);
+EXPORT_SYMBOL(gr_task_is_capable_nolog);
diff --git a/grsecurity/grsec_fifo.c b/grsecurity/grsec_fifo.c
new file mode 100644
index 0000000..06cc6ea
--- /dev/null
+++ b/grsecurity/grsec_fifo.c
@@ -0,0 +1,24 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/grinternal.h>
+
+int
+gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt,
+	       const struct dentry *dir, const int flag, const int acc_mode)
+{
+#ifdef CONFIG_GRKERNSEC_FIFO
+	const struct cred *cred = current_cred();
+
+	if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) &&
+	    !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) &&
+	    !uid_eq(dentry->d_inode->i_uid, dir->d_inode->i_uid) &&
+	    !uid_eq(cred->fsuid, dentry->d_inode->i_uid)) {
+		if (!inode_permission(dentry->d_inode, acc_mode))
+			gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, GR_GLOBAL_UID(dentry->d_inode->i_uid), GR_GLOBAL_GID(dentry->d_inode->i_gid));
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_fork.c b/grsecurity/grsec_fork.c
new file mode 100644
index 0000000..8ca18bf
--- /dev/null
+++ b/grsecurity/grsec_fork.c
@@ -0,0 +1,23 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/errno.h>
+
+void
+gr_log_forkfail(const int retval)
+{
+#ifdef CONFIG_GRKERNSEC_FORKFAIL
+	if (grsec_enable_forkfail && (retval == -EAGAIN || retval == -ENOMEM)) {
+		switch (retval) {
+			case -EAGAIN:
+				gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "EAGAIN");
+				break;
+			case -ENOMEM:
+				gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "ENOMEM");
+				break;
+		}
+	}
+#endif
+	return;
+}
diff --git a/grsecurity/grsec_init.c b/grsecurity/grsec_init.c
new file mode 100644
index 0000000..a862e9f
--- /dev/null
+++ b/grsecurity/grsec_init.c
@@ -0,0 +1,283 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/gracl.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/percpu.h>
+#include <linux/module.h>
+
+int grsec_enable_ptrace_readexec;
+int grsec_enable_setxid;
+int grsec_enable_symlinkown;
+kgid_t grsec_symlinkown_gid;
+int grsec_enable_brute;
+int grsec_enable_link;
+int grsec_enable_dmesg;
+int grsec_enable_harden_ptrace;
+int grsec_enable_fifo;
+int grsec_enable_execlog;
+int grsec_enable_signal;
+int grsec_enable_forkfail;
+int grsec_enable_audit_ptrace;
+int grsec_enable_time;
+int grsec_enable_audit_textrel;
+int grsec_enable_group;
+kgid_t grsec_audit_gid;
+int grsec_enable_chdir;
+int grsec_enable_mount;
+int grsec_enable_rofs;
+int grsec_enable_chroot_findtask;
+int grsec_enable_chroot_mount;
+int grsec_enable_chroot_shmat;
+int grsec_enable_chroot_fchdir;
+int grsec_enable_chroot_double;
+int grsec_enable_chroot_pivot;
+int grsec_enable_chroot_chdir;
+int grsec_enable_chroot_chmod;
+int grsec_enable_chroot_mknod;
+int grsec_enable_chroot_nice;
+int grsec_enable_chroot_execlog;
+int grsec_enable_chroot_caps;
+int grsec_enable_chroot_sysctl;
+int grsec_enable_chroot_unix;
+int grsec_enable_tpe;
+kgid_t grsec_tpe_gid;
+int grsec_enable_blackhole;
+#ifdef CONFIG_IPV6_MODULE
+EXPORT_SYMBOL(grsec_enable_blackhole);
+#endif
+int grsec_lastack_retries;
+int grsec_enable_tpe_all;
+int grsec_enable_tpe_invert;
+int grsec_enable_socket_all;
+kgid_t grsec_socket_all_gid;
+int grsec_enable_socket_client;
+kgid_t grsec_socket_client_gid;
+int grsec_enable_socket_server;
+kgid_t grsec_socket_server_gid;
+int grsec_resource_logging;
+int grsec_disable_privio;
+int grsec_enable_log_rwxmaps;
+int grsec_lock;
+
+DEFINE_SPINLOCK(grsec_alert_lock);
+unsigned long grsec_alert_wtime = 0;
+unsigned long grsec_alert_fyet = 0;
+
+DEFINE_SPINLOCK(grsec_audit_lock);
+
+DEFINE_RWLOCK(grsec_exec_file_lock);
+
+char *gr_shared_page[4];
+
+char *gr_alert_log_fmt;
+char *gr_audit_log_fmt;
+char *gr_alert_log_buf;
+char *gr_audit_log_buf;
+
+extern struct gr_arg *gr_usermode;
+extern unsigned char *gr_system_salt;
+extern unsigned char *gr_system_sum;
+
+void __init
+grsecurity_init(void)
+{
+	int j;
+	/* create the per-cpu shared pages */
+
+#ifdef CONFIG_X86
+	memset((char *)(0x41a + PAGE_OFFSET), 0, 36);
+#endif
+
+	for (j = 0; j < 4; j++) {
+		gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE, __alignof__(unsigned long long));
+		if (gr_shared_page[j] == NULL) {
+			panic("Unable to allocate grsecurity shared page");
+			return;
+		}
+	}
+
+	/* allocate log buffers */
+	gr_alert_log_fmt = kmalloc(512, GFP_KERNEL);
+	if (!gr_alert_log_fmt) {
+		panic("Unable to allocate grsecurity alert log format buffer");
+		return;
+	}
+	gr_audit_log_fmt = kmalloc(512, GFP_KERNEL);
+	if (!gr_audit_log_fmt) {
+		panic("Unable to allocate grsecurity audit log format buffer");
+		return;
+	}
+	gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
+	if (!gr_alert_log_buf) {
+		panic("Unable to allocate grsecurity alert log buffer");
+		return;
+	}
+	gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
+	if (!gr_audit_log_buf) {
+		panic("Unable to allocate grsecurity audit log buffer");
+		return;
+	}
+
+	/* allocate memory for authentication structure */
+	gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL);
+	gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL);
+	gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL);
+
+	if (!gr_usermode || !gr_system_salt || !gr_system_sum) {
+		panic("Unable to allocate grsecurity authentication structure");
+		return;
+	}
+
+
+#ifdef CONFIG_GRKERNSEC_IO
+#if !defined(CONFIG_GRKERNSEC_SYSCTL_DISTRO)
+	grsec_disable_privio = 1;
+#elif defined(CONFIG_GRKERNSEC_SYSCTL_ON)
+	grsec_disable_privio = 1;
+#else
+	grsec_disable_privio = 0;
+#endif
+#endif
+
+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
+	/* for backward compatibility, tpe_invert always defaults to on if
+	   enabled in the kernel
+	*/
+	grsec_enable_tpe_invert = 1;
+#endif
+
+#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON)
+#ifndef CONFIG_GRKERNSEC_SYSCTL
+	grsec_lock = 1;
+#endif
+
+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
+	grsec_enable_audit_textrel = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	grsec_enable_log_rwxmaps = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
+	grsec_enable_group = 1;
+	grsec_audit_gid = KGIDT_INIT(CONFIG_GRKERNSEC_AUDIT_GID);
+#endif
+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
+	grsec_enable_ptrace_readexec = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
+	grsec_enable_chdir = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	grsec_enable_harden_ptrace = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
+	grsec_enable_mount = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_LINK
+	grsec_enable_link = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_BRUTE
+	grsec_enable_brute = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_DMESG
+	grsec_enable_dmesg = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	grsec_enable_blackhole = 1;
+	grsec_lastack_retries = 4;
+#endif
+#ifdef CONFIG_GRKERNSEC_FIFO
+	grsec_enable_fifo = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_EXECLOG
+	grsec_enable_execlog = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_SETXID
+	grsec_enable_setxid = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_SIGNAL
+	grsec_enable_signal = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_FORKFAIL
+	grsec_enable_forkfail = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_TIME
+	grsec_enable_time = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_RESLOG
+	grsec_resource_logging = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+	grsec_enable_chroot_findtask = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
+	grsec_enable_chroot_unix = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
+	grsec_enable_chroot_mount = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
+	grsec_enable_chroot_fchdir = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
+	grsec_enable_chroot_shmat = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
+	grsec_enable_audit_ptrace = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
+	grsec_enable_chroot_double = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
+	grsec_enable_chroot_pivot = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
+	grsec_enable_chroot_chdir = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
+	grsec_enable_chroot_chmod = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
+	grsec_enable_chroot_mknod = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
+	grsec_enable_chroot_nice = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
+	grsec_enable_chroot_execlog = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	grsec_enable_chroot_caps = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
+	grsec_enable_chroot_sysctl = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	grsec_enable_symlinkown = 1;
+	grsec_symlinkown_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SYMLINKOWN_GID);
+#endif
+#ifdef CONFIG_GRKERNSEC_TPE
+	grsec_enable_tpe = 1;
+	grsec_tpe_gid = KGIDT_INIT(CONFIG_GRKERNSEC_TPE_GID);
+#ifdef CONFIG_GRKERNSEC_TPE_ALL
+	grsec_enable_tpe_all = 1;
+#endif
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
+	grsec_enable_socket_all = 1;
+	grsec_socket_all_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_ALL_GID);
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
+	grsec_enable_socket_client = 1;
+	grsec_socket_client_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_CLIENT_GID);
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
+	grsec_enable_socket_server = 1;
+	grsec_socket_server_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_SERVER_GID);
+#endif
+#endif
+
+	return;
+}
diff --git a/grsecurity/grsec_link.c b/grsecurity/grsec_link.c
new file mode 100644
index 0000000..5e05e20
--- /dev/null
+++ b/grsecurity/grsec_link.c
@@ -0,0 +1,58 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/grinternal.h>
+
+int gr_handle_symlink_owner(const struct path *link, const struct inode *target)
+{
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	const struct inode *link_inode = link->dentry->d_inode;
+
+	if (grsec_enable_symlinkown && in_group_p(grsec_symlinkown_gid) &&
+	   /* ignore root-owned links, e.g. /proc/self */
+	    gr_is_global_nonroot(link_inode->i_uid) && target &&
+	    !uid_eq(link_inode->i_uid, target->i_uid)) {
+		gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINKOWNER_MSG, link->dentry, link->mnt, link_inode->i_uid, target->i_uid);
+		return 1;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_follow_link(const struct inode *parent,
+		      const struct inode *inode,
+		      const struct dentry *dentry, const struct vfsmount *mnt)
+{
+#ifdef CONFIG_GRKERNSEC_LINK
+	const struct cred *cred = current_cred();
+
+	if (grsec_enable_link && S_ISLNK(inode->i_mode) &&
+	    (parent->i_mode & S_ISVTX) && !uid_eq(parent->i_uid, inode->i_uid) &&
+	    (parent->i_mode & S_IWOTH) && !uid_eq(cred->fsuid, inode->i_uid)) {
+		gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_hardlink(const struct dentry *dentry,
+		   const struct vfsmount *mnt,
+		   struct inode *inode, const int mode, const struct filename *to)
+{
+#ifdef CONFIG_GRKERNSEC_LINK
+	const struct cred *cred = current_cred();
+
+	if (grsec_enable_link && !uid_eq(cred->fsuid, inode->i_uid) &&
+	    (!S_ISREG(mode) || is_privileged_binary(dentry) || 
+	     (inode_permission(inode, MAY_READ | MAY_WRITE))) &&
+	    !capable(CAP_FOWNER) && gr_is_global_nonroot(cred->uid)) {
+		gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to->name);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_log.c b/grsecurity/grsec_log.c
new file mode 100644
index 0000000..7c06085
--- /dev/null
+++ b/grsecurity/grsec_log.c
@@ -0,0 +1,326 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/tty.h>
+#include <linux/fs.h>
+#include <linux/grinternal.h>
+
+#ifdef CONFIG_TREE_PREEMPT_RCU
+#define DISABLE_PREEMPT() preempt_disable()
+#define ENABLE_PREEMPT() preempt_enable()
+#else
+#define DISABLE_PREEMPT()
+#define ENABLE_PREEMPT()
+#endif
+
+#define BEGIN_LOCKS(x) \
+	DISABLE_PREEMPT(); \
+	rcu_read_lock(); \
+	read_lock(&tasklist_lock); \
+	read_lock(&grsec_exec_file_lock); \
+	if (x != GR_DO_AUDIT) \
+		spin_lock(&grsec_alert_lock); \
+	else \
+		spin_lock(&grsec_audit_lock)
+
+#define END_LOCKS(x) \
+	if (x != GR_DO_AUDIT) \
+		spin_unlock(&grsec_alert_lock); \
+	else \
+		spin_unlock(&grsec_audit_lock); \
+	read_unlock(&grsec_exec_file_lock); \
+	read_unlock(&tasklist_lock); \
+	rcu_read_unlock(); \
+	ENABLE_PREEMPT(); \
+	if (x == GR_DONT_AUDIT) \
+		gr_handle_alertkill(current)
+
+enum {
+	FLOODING,
+	NO_FLOODING
+};
+
+extern char *gr_alert_log_fmt;
+extern char *gr_audit_log_fmt;
+extern char *gr_alert_log_buf;
+extern char *gr_audit_log_buf;
+
+static int gr_log_start(int audit)
+{
+	char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT;
+	char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt;
+	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
+#if (CONFIG_GRKERNSEC_FLOODTIME > 0 && CONFIG_GRKERNSEC_FLOODBURST > 0)
+	unsigned long curr_secs = get_seconds();
+
+	if (audit == GR_DO_AUDIT)
+		goto set_fmt;
+
+	if (!grsec_alert_wtime || time_after(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)) {
+		grsec_alert_wtime = curr_secs;
+		grsec_alert_fyet = 0;
+	} else if (time_before_eq(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)
+		    && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) {
+		grsec_alert_fyet++;
+	} else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) {
+		grsec_alert_wtime = curr_secs;
+		grsec_alert_fyet++;
+		printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME);
+		return FLOODING;
+	}
+	else return FLOODING;
+
+set_fmt:
+#endif
+	memset(buf, 0, PAGE_SIZE);
+	if (current->signal->curr_ip && gr_acl_is_enabled()) {
+		sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: (%.64s:%c:%.950s) ");
+		snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
+	} else if (current->signal->curr_ip) {
+		sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: ");
+		snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip);
+	} else if (gr_acl_is_enabled()) {
+		sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) ");
+		snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
+	} else {
+		sprintf(fmt, "%s%s", loglevel, "grsec: ");
+		strcpy(buf, fmt);
+	}
+
+	return NO_FLOODING;
+}
+
+static void gr_log_middle(int audit, const char *msg, va_list ap)
+	__attribute__ ((format (printf, 2, 0)));
+
+static void gr_log_middle(int audit, const char *msg, va_list ap)
+{
+	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
+	unsigned int len = strlen(buf);
+
+	vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
+
+	return;
+}
+
+static void gr_log_middle_varargs(int audit, const char *msg, ...)
+	__attribute__ ((format (printf, 2, 3)));
+
+static void gr_log_middle_varargs(int audit, const char *msg, ...)
+{
+	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
+	unsigned int len = strlen(buf);
+	va_list ap;
+
+	va_start(ap, msg);
+	vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
+	va_end(ap);
+
+	return;
+}
+
+static void gr_log_end(int audit, int append_default)
+{
+	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
+	if (append_default) {
+		struct task_struct *task = current;
+		struct task_struct *parent = task->real_parent;
+		const struct cred *cred = __task_cred(task);
+		const struct cred *pcred = __task_cred(parent);
+		unsigned int len = strlen(buf);
+
+		snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
+	}
+
+	printk("%s\n", buf);
+
+	return;
+}
+
+void gr_log_varargs(int audit, const char *msg, int argtypes, ...)
+{
+	int logtype;
+	char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied";
+	char *str1 = NULL, *str2 = NULL, *str3 = NULL;
+	void *voidptr = NULL;
+	int num1 = 0, num2 = 0;
+	unsigned long ulong1 = 0, ulong2 = 0;
+	struct dentry *dentry = NULL;
+	struct vfsmount *mnt = NULL;
+	struct file *file = NULL;
+	struct task_struct *task = NULL;
+	const struct cred *cred, *pcred;
+	va_list ap;
+
+	BEGIN_LOCKS(audit);
+	logtype = gr_log_start(audit);
+	if (logtype == FLOODING) {
+		END_LOCKS(audit);
+		return;
+	}
+	va_start(ap, argtypes);
+	switch (argtypes) {
+	case GR_TTYSNIFF:
+		task = va_arg(ap, struct task_struct *);
+		gr_log_middle_varargs(audit, msg, &task->signal->curr_ip, gr_task_fullpath0(task), task->comm, task_pid_nr(task), gr_parent_task_fullpath0(task), task->real_parent->comm, task_pid_nr(task->real_parent));
+		break;
+	case GR_SYSCTL_HIDDEN:
+		str1 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, result, str1);
+		break;
+	case GR_RBAC:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt));
+		break;
+	case GR_RBAC_STR:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		str1 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1);
+		break;
+	case GR_STR_RBAC:
+		str1 = va_arg(ap, char *);
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt));
+		break;
+	case GR_RBAC_MODE2:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		str1 = va_arg(ap, char *);
+		str2 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2);
+		break;
+	case GR_RBAC_MODE3:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		str1 = va_arg(ap, char *);
+		str2 = va_arg(ap, char *);
+		str3 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3);
+		break;
+	case GR_FILENAME:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt));
+		break;
+	case GR_STR_FILENAME:
+		str1 = va_arg(ap, char *);
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt));
+		break;
+	case GR_FILENAME_STR:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		str1 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1);
+		break;
+	case GR_FILENAME_TWO_INT:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		num1 = va_arg(ap, int);
+		num2 = va_arg(ap, int);
+		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2);
+		break;
+	case GR_FILENAME_TWO_INT_STR:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		num1 = va_arg(ap, int);
+		num2 = va_arg(ap, int);
+		str1 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1);
+		break;
+	case GR_TEXTREL:
+		file = va_arg(ap, struct file *);
+		ulong1 = va_arg(ap, unsigned long);
+		ulong2 = va_arg(ap, unsigned long);
+		gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2);
+		break;
+	case GR_PTRACE:
+		task = va_arg(ap, struct task_struct *);
+		gr_log_middle_varargs(audit, msg, task->exec_file ? gr_to_filename(task->exec_file->f_path.dentry, task->exec_file->f_path.mnt) : "(none)", task->comm, task_pid_nr(task));
+		break;
+	case GR_RESOURCE:
+		task = va_arg(ap, struct task_struct *);
+		cred = __task_cred(task);
+		pcred = __task_cred(task->real_parent);
+		ulong1 = va_arg(ap, unsigned long);
+		str1 = va_arg(ap, char *);
+		ulong2 = va_arg(ap, unsigned long);
+		gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
+		break;
+	case GR_CAP:
+		task = va_arg(ap, struct task_struct *);
+		cred = __task_cred(task);
+		pcred = __task_cred(task->real_parent);
+		str1 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
+		break;
+	case GR_SIG:
+		str1 = va_arg(ap, char *);
+		voidptr = va_arg(ap, void *);
+		gr_log_middle_varargs(audit, msg, str1, voidptr);
+		break;
+	case GR_SIG2:
+		task = va_arg(ap, struct task_struct *);
+		cred = __task_cred(task);
+		pcred = __task_cred(task->real_parent);
+		num1 = va_arg(ap, int);
+		gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath0(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
+		break;
+	case GR_CRASH1:
+		task = va_arg(ap, struct task_struct *);
+		cred = __task_cred(task);
+		pcred = __task_cred(task->real_parent);
+		ulong1 = va_arg(ap, unsigned long);
+		gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid), GR_GLOBAL_UID(cred->uid), ulong1);
+		break;
+	case GR_CRASH2:
+		task = va_arg(ap, struct task_struct *);
+		cred = __task_cred(task);
+		pcred = __task_cred(task->real_parent);
+		ulong1 = va_arg(ap, unsigned long);
+		gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid), ulong1);
+		break;
+	case GR_RWXMAP:
+		file = va_arg(ap, struct file *);
+		gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>");
+		break;
+	case GR_PSACCT:
+		{
+			unsigned int wday, cday;
+			__u8 whr, chr;
+			__u8 wmin, cmin;
+			__u8 wsec, csec;
+			char cur_tty[64] = { 0 };
+			char parent_tty[64] = { 0 };
+
+			task = va_arg(ap, struct task_struct *);
+			wday = va_arg(ap, unsigned int);
+			cday = va_arg(ap, unsigned int);
+			whr = va_arg(ap, int);
+			chr = va_arg(ap, int);
+			wmin = va_arg(ap, int);
+			cmin = va_arg(ap, int);
+			wsec = va_arg(ap, int);
+			csec = va_arg(ap, int);
+			ulong1 = va_arg(ap, unsigned long);
+			cred = __task_cred(task);
+			pcred = __task_cred(task->real_parent);
+
+			gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), &task->signal->curr_ip, tty_name(task->signal->tty, cur_tty), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), wday, whr, wmin, wsec, cday, chr, cmin, csec, (task->flags & PF_SIGNALED) ? "killed by signal" : "exited", ulong1, gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), &task->real_parent->signal->curr_ip, tty_name(task->real_parent->signal->tty, parent_tty), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
+		}
+		break;
+	default:
+		gr_log_middle(audit, msg, ap);
+	}
+	va_end(ap);
+	// these don't need DEFAULTSECARGS printed on the end
+	if (argtypes == GR_CRASH1 || argtypes == GR_CRASH2)
+		gr_log_end(audit, 0);
+	else
+		gr_log_end(audit, 1);
+	END_LOCKS(audit);
+}
diff --git a/grsecurity/grsec_mem.c b/grsecurity/grsec_mem.c
new file mode 100644
index 0000000..f536303
--- /dev/null
+++ b/grsecurity/grsec_mem.c
@@ -0,0 +1,40 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/grinternal.h>
+
+void
+gr_handle_ioperm(void)
+{
+	gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG);
+	return;
+}
+
+void
+gr_handle_iopl(void)
+{
+	gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG);
+	return;
+}
+
+void
+gr_handle_mem_readwrite(u64 from, u64 to)
+{
+	gr_log_two_u64(GR_DONT_AUDIT, GR_MEM_READWRITE_MSG, from, to);
+	return;
+}
+
+void
+gr_handle_vm86(void)
+{
+	gr_log_noargs(GR_DONT_AUDIT, GR_VM86_MSG);
+	return;
+}
+
+void
+gr_log_badprocpid(const char *entry)
+{
+	gr_log_str(GR_DONT_AUDIT, GR_BADPROCPID_MSG, entry);
+	return;
+}
diff --git a/grsecurity/grsec_mount.c b/grsecurity/grsec_mount.c
new file mode 100644
index 0000000..2131422
--- /dev/null
+++ b/grsecurity/grsec_mount.c
@@ -0,0 +1,62 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mount.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+void
+gr_log_remount(const char *devname, const int retval)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
+	if (grsec_enable_mount && (retval >= 0))
+		gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none");
+#endif
+	return;
+}
+
+void
+gr_log_unmount(const char *devname, const int retval)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
+	if (grsec_enable_mount && (retval >= 0))
+		gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none");
+#endif
+	return;
+}
+
+void
+gr_log_mount(const char *from, const char *to, const int retval)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
+	if (grsec_enable_mount && (retval >= 0))
+		gr_log_str_str(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from ? from : "none", to);
+#endif
+	return;
+}
+
+int
+gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags)
+{
+#ifdef CONFIG_GRKERNSEC_ROFS
+	if (grsec_enable_rofs && !(mnt_flags & MNT_READONLY)) {
+		gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_MOUNT_MSG, dentry, mnt);
+		return -EPERM;
+	} else
+		return 0;
+#endif
+	return 0;
+}
+
+int
+gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode)
+{
+#ifdef CONFIG_GRKERNSEC_ROFS
+	if (grsec_enable_rofs && (acc_mode & MAY_WRITE) &&
+	    dentry->d_inode && S_ISBLK(dentry->d_inode->i_mode)) {
+		gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_BLOCKWRITE_MSG, dentry, mnt);
+		return -EPERM;
+	} else
+		return 0;
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_pax.c b/grsecurity/grsec_pax.c
new file mode 100644
index 0000000..a3b12a0
--- /dev/null
+++ b/grsecurity/grsec_pax.c
@@ -0,0 +1,36 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/grinternal.h>
+#include <linux/grsecurity.h>
+
+void
+gr_log_textrel(struct vm_area_struct * vma)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
+	if (grsec_enable_audit_textrel)
+		gr_log_textrel_ulong_ulong(GR_DO_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff);
+#endif
+	return;
+}
+
+void
+gr_log_rwxmmap(struct file *file)
+{
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	if (grsec_enable_log_rwxmaps)
+		gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMMAP_MSG, file);
+#endif
+	return;
+}
+
+void
+gr_log_rwxmprotect(struct file *file)
+{
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	if (grsec_enable_log_rwxmaps)
+		gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMPROTECT_MSG, file);
+#endif
+	return;
+}
diff --git a/grsecurity/grsec_ptrace.c b/grsecurity/grsec_ptrace.c
new file mode 100644
index 0000000..f7f29aa
--- /dev/null
+++ b/grsecurity/grsec_ptrace.c
@@ -0,0 +1,30 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/grinternal.h>
+#include <linux/security.h>
+
+void
+gr_audit_ptrace(struct task_struct *task)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
+	if (grsec_enable_audit_ptrace)
+		gr_log_ptrace(GR_DO_AUDIT, GR_PTRACE_AUDIT_MSG, task);
+#endif
+	return;
+}
+
+int
+gr_ptrace_readexec(struct file *file, int unsafe_flags)
+{
+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
+	const struct dentry *dentry = file->f_path.dentry;
+	const struct vfsmount *mnt = file->f_path.mnt;
+
+	if (grsec_enable_ptrace_readexec && (unsafe_flags & LSM_UNSAFE_PTRACE) && 
+	    (inode_permission(dentry->d_inode, MAY_READ) || !gr_acl_handle_open(dentry, mnt, MAY_READ))) {
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_READEXEC_MSG, dentry, mnt);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_sig.c b/grsecurity/grsec_sig.c
new file mode 100644
index 0000000..e09715a
--- /dev/null
+++ b/grsecurity/grsec_sig.c
@@ -0,0 +1,222 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/hardirq.h>
+
+char *signames[] = {
+	[SIGSEGV] = "Segmentation fault",
+	[SIGILL] = "Illegal instruction",
+	[SIGABRT] = "Abort",
+	[SIGBUS] = "Invalid alignment/Bus error"
+};
+
+void
+gr_log_signal(const int sig, const void *addr, const struct task_struct *t)
+{
+#ifdef CONFIG_GRKERNSEC_SIGNAL
+	if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) ||
+				    (sig == SIGABRT) || (sig == SIGBUS))) {
+		if (task_pid_nr(t) == task_pid_nr(current)) {
+			gr_log_sig_addr(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, signames[sig], addr);
+		} else {
+			gr_log_sig_task(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig);
+		}
+	}
+#endif
+	return;
+}
+
+int
+gr_handle_signal(const struct task_struct *p, const int sig)
+{
+#ifdef CONFIG_GRKERNSEC
+	/* ignore the 0 signal for protected task checks */
+	if (task_pid_nr(current) > 1 && sig && gr_check_protected_task(p)) {
+		gr_log_sig_task(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig);
+		return -EPERM;
+	} else if (gr_pid_is_chrooted((struct task_struct *)p)) {
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+#ifdef CONFIG_GRKERNSEC
+extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t);
+
+int gr_fake_force_sig(int sig, struct task_struct *t)
+{
+	unsigned long int flags;
+	int ret, blocked, ignored;
+	struct k_sigaction *action;
+
+	spin_lock_irqsave(&t->sighand->siglock, flags);
+	action = &t->sighand->action[sig-1];
+	ignored = action->sa.sa_handler == SIG_IGN;
+	blocked = sigismember(&t->blocked, sig);
+	if (blocked || ignored) {
+		action->sa.sa_handler = SIG_DFL;
+		if (blocked) {
+			sigdelset(&t->blocked, sig);
+			recalc_sigpending_and_wake(t);
+		}
+	}
+	if (action->sa.sa_handler == SIG_DFL)
+		t->signal->flags &= ~SIGNAL_UNKILLABLE;
+	ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t);
+
+	spin_unlock_irqrestore(&t->sighand->siglock, flags);
+
+	return ret;
+}
+#endif
+
+#ifdef CONFIG_GRKERNSEC_BRUTE
+#define GR_USER_BAN_TIME (15 * 60)
+#define GR_DAEMON_BRUTE_TIME (30 * 60)
+
+static int __get_dumpable(unsigned long mm_flags)
+{
+	int ret;
+
+	ret = mm_flags & MMF_DUMPABLE_MASK;
+	return (ret >= 2) ? 2 : ret;
+}
+#endif
+
+void gr_handle_brute_attach(unsigned long mm_flags)
+{
+#ifdef CONFIG_GRKERNSEC_BRUTE
+	struct task_struct *p = current;
+	kuid_t uid = GLOBAL_ROOT_UID;
+	int daemon = 0;
+
+	if (!grsec_enable_brute)
+		return;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	read_lock(&grsec_exec_file_lock);
+	if (p->real_parent && p->real_parent->exec_file == p->exec_file) {
+		p->real_parent->brute_expires = get_seconds() + GR_DAEMON_BRUTE_TIME;
+		p->real_parent->brute = 1;
+		daemon = 1;
+	} else {
+		const struct cred *cred = __task_cred(p), *cred2;
+		struct task_struct *tsk, *tsk2;
+
+		if (!__get_dumpable(mm_flags) && gr_is_global_nonroot(cred->uid)) {
+			struct user_struct *user;
+
+			uid = cred->uid;
+
+			/* this is put upon execution past expiration */
+			user = find_user(uid);
+			if (user == NULL)
+				goto unlock;
+			user->banned = 1;
+			user->ban_expires = get_seconds() + GR_USER_BAN_TIME;
+			if (user->ban_expires == ~0UL)
+				user->ban_expires--;
+
+			do_each_thread(tsk2, tsk) {
+				cred2 = __task_cred(tsk);
+				if (tsk != p && uid_eq(cred2->uid, uid))
+					gr_fake_force_sig(SIGKILL, tsk);
+			} while_each_thread(tsk2, tsk);
+		}
+	}
+unlock:
+	read_unlock(&grsec_exec_file_lock);
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	if (gr_is_global_nonroot(uid))
+		printk(KERN_ALERT "grsec: bruteforce prevention initiated against uid %u, banning for %d minutes\n",
+			GR_GLOBAL_UID(uid), GR_USER_BAN_TIME / 60);
+	else if (daemon)
+		gr_log_noargs(GR_DONT_AUDIT, GR_BRUTE_DAEMON_MSG);
+
+#endif
+	return;
+}
+
+void gr_handle_brute_check(void)
+{
+#ifdef CONFIG_GRKERNSEC_BRUTE
+	struct task_struct *p = current;
+
+	if (unlikely(p->brute)) {
+		if (!grsec_enable_brute)
+			p->brute = 0;
+		else if (time_before(get_seconds(), p->brute_expires))
+			msleep(30 * 1000);
+	}
+#endif
+	return;
+}
+
+void gr_handle_kernel_exploit(void)
+{
+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
+	const struct cred *cred;
+	struct task_struct *tsk, *tsk2;
+	struct user_struct *user;
+	kuid_t uid;
+
+	if (in_irq() || in_serving_softirq() || in_nmi())
+		panic("grsec: halting the system due to suspicious kernel crash caused in interrupt context");
+
+	uid = current_uid();
+
+	if (gr_is_global_root(uid))
+		panic("grsec: halting the system due to suspicious kernel crash caused by root");
+	else {
+		/* kill all the processes of this user, hold a reference
+		   to their creds struct, and prevent them from creating
+		   another process until system reset
+		*/
+		printk(KERN_ALERT "grsec: banning user with uid %u until system restart for suspicious kernel crash\n",
+			GR_GLOBAL_UID(uid));
+		/* we intentionally leak this ref */
+		user = get_uid(current->cred->user);
+		if (user) {
+			user->banned = 1;
+			user->ban_expires = ~0UL;
+		}
+
+		read_lock(&tasklist_lock);
+		do_each_thread(tsk2, tsk) {
+			cred = __task_cred(tsk);
+			if (uid_eq(cred->uid, uid))
+				gr_fake_force_sig(SIGKILL, tsk);
+		} while_each_thread(tsk2, tsk);
+		read_unlock(&tasklist_lock); 
+	}
+#endif
+}
+
+int __gr_process_user_ban(struct user_struct *user)
+{
+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE)
+	if (unlikely(user->banned)) {
+		if (user->ban_expires != ~0UL && time_after_eq(get_seconds(), user->ban_expires)) {
+			user->banned = 0;
+			user->ban_expires = 0;
+			free_uid(user);
+		} else
+			return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+int gr_process_user_ban(void)
+{
+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE)
+	return __gr_process_user_ban(current->cred->user);
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_sock.c b/grsecurity/grsec_sock.c
new file mode 100644
index 0000000..4030d57
--- /dev/null
+++ b/grsecurity/grsec_sock.c
@@ -0,0 +1,244 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <net/sock.h>
+#include <net/inet_sock.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/gracl.h>
+
+extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb);
+extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr);
+
+EXPORT_SYMBOL(gr_search_udp_recvmsg);
+EXPORT_SYMBOL(gr_search_udp_sendmsg);
+
+#ifdef CONFIG_UNIX_MODULE
+EXPORT_SYMBOL(gr_acl_handle_unix);
+EXPORT_SYMBOL(gr_acl_handle_mknod);
+EXPORT_SYMBOL(gr_handle_chroot_unix);
+EXPORT_SYMBOL(gr_handle_create);
+#endif
+
+#ifdef CONFIG_GRKERNSEC
+#define gr_conn_table_size 32749
+struct conn_table_entry {
+	struct conn_table_entry *next;
+	struct signal_struct *sig;
+};
+
+struct conn_table_entry *gr_conn_table[gr_conn_table_size];
+DEFINE_SPINLOCK(gr_conn_table_lock);
+
+extern const char * gr_socktype_to_name(unsigned char type);
+extern const char * gr_proto_to_name(unsigned char proto);
+extern const char * gr_sockfamily_to_name(unsigned char family);
+
+static __inline__ int 
+conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size)
+{
+	return ((daddr + saddr + (sport << 8) + (dport << 16)) % size);
+}
+
+static __inline__ int
+conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr, 
+	   __u16 sport, __u16 dport)
+{
+	if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr &&
+		     sig->gr_sport == sport && sig->gr_dport == dport))
+		return 1;
+	else
+		return 0;
+}
+
+static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent)
+{
+	struct conn_table_entry **match;
+	unsigned int index;
+
+	index = conn_hash(sig->gr_saddr, sig->gr_daddr, 
+			  sig->gr_sport, sig->gr_dport, 
+			  gr_conn_table_size);
+
+	newent->sig = sig;
+	
+	match = &gr_conn_table[index];
+	newent->next = *match;
+	*match = newent;
+
+	return;
+}
+
+static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig)
+{
+	struct conn_table_entry *match, *last = NULL;
+	unsigned int index;
+
+	index = conn_hash(sig->gr_saddr, sig->gr_daddr, 
+			  sig->gr_sport, sig->gr_dport, 
+			  gr_conn_table_size);
+
+	match = gr_conn_table[index];
+	while (match && !conn_match(match->sig, 
+		sig->gr_saddr, sig->gr_daddr, sig->gr_sport, 
+		sig->gr_dport)) {
+		last = match;
+		match = match->next;
+	}
+
+	if (match) {
+		if (last)
+			last->next = match->next;
+		else
+			gr_conn_table[index] = NULL;
+		kfree(match);
+	}
+
+	return;
+}
+
+static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr,
+					     __u16 sport, __u16 dport)
+{
+	struct conn_table_entry *match;
+	unsigned int index;
+
+	index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size);
+
+	match = gr_conn_table[index];
+	while (match && !conn_match(match->sig, saddr, daddr, sport, dport))
+		match = match->next;
+
+	if (match)
+		return match->sig;
+	else
+		return NULL;
+}
+
+#endif
+
+void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet)
+{
+#ifdef CONFIG_GRKERNSEC
+	struct signal_struct *sig = task->signal;
+	struct conn_table_entry *newent;
+
+	newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC);
+	if (newent == NULL)
+		return;
+	/* no bh lock needed since we are called with bh disabled */
+	spin_lock(&gr_conn_table_lock);
+	gr_del_task_from_ip_table_nolock(sig);
+	sig->gr_saddr = inet->inet_rcv_saddr;
+	sig->gr_daddr = inet->inet_daddr;
+	sig->gr_sport = inet->inet_sport;
+	sig->gr_dport = inet->inet_dport;
+	gr_add_to_task_ip_table_nolock(sig, newent);
+	spin_unlock(&gr_conn_table_lock);
+#endif
+	return;
+}
+
+void gr_del_task_from_ip_table(struct task_struct *task)
+{
+#ifdef CONFIG_GRKERNSEC
+	spin_lock_bh(&gr_conn_table_lock);
+	gr_del_task_from_ip_table_nolock(task->signal);
+	spin_unlock_bh(&gr_conn_table_lock);
+#endif
+	return;
+}
+
+void
+gr_attach_curr_ip(const struct sock *sk)
+{
+#ifdef CONFIG_GRKERNSEC
+	struct signal_struct *p, *set;
+	const struct inet_sock *inet = inet_sk(sk);	
+
+	if (unlikely(sk->sk_protocol != IPPROTO_TCP))
+		return;
+
+	set = current->signal;
+
+	spin_lock_bh(&gr_conn_table_lock);
+	p = gr_lookup_task_ip_table(inet->inet_daddr, inet->inet_rcv_saddr,
+				    inet->inet_dport, inet->inet_sport);
+	if (unlikely(p != NULL)) {
+		set->curr_ip = p->curr_ip;
+		set->used_accept = 1;
+		gr_del_task_from_ip_table_nolock(p);
+		spin_unlock_bh(&gr_conn_table_lock);
+		return;
+	}
+	spin_unlock_bh(&gr_conn_table_lock);
+
+	set->curr_ip = inet->inet_daddr;
+	set->used_accept = 1;
+#endif
+	return;
+}
+
+int
+gr_handle_sock_all(const int family, const int type, const int protocol)
+{
+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
+	if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) &&
+	    (family != AF_UNIX)) {
+		if (family == AF_INET)
+			gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), gr_proto_to_name(protocol));
+		else
+			gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), protocol);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_sock_server(const struct sockaddr *sck)
+{
+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
+	if (grsec_enable_socket_server &&
+	    in_group_p(grsec_socket_server_gid) &&
+	    sck && (sck->sa_family != AF_UNIX) &&
+	    (sck->sa_family != AF_LOCAL)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_sock_server_other(const struct sock *sck)
+{
+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
+	if (grsec_enable_socket_server &&
+	    in_group_p(grsec_socket_server_gid) &&
+	    sck && (sck->sk_family != AF_UNIX) &&
+	    (sck->sk_family != AF_LOCAL)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_sock_client(const struct sockaddr *sck)
+{
+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
+	if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) &&
+	    sck && (sck->sa_family != AF_UNIX) &&
+	    (sck->sa_family != AF_LOCAL)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_sysctl.c b/grsecurity/grsec_sysctl.c
new file mode 100644
index 0000000..f55ef0f
--- /dev/null
+++ b/grsecurity/grsec_sysctl.c
@@ -0,0 +1,469 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/sysctl.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+int
+gr_handle_sysctl_mod(const char *dirname, const char *name, const int op)
+{
+#ifdef CONFIG_GRKERNSEC_SYSCTL
+	if (dirname == NULL || name == NULL)
+		return 0;
+	if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) {
+		gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+#ifdef CONFIG_GRKERNSEC_ROFS
+static int __maybe_unused one = 1;
+#endif
+
+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS)
+struct ctl_table grsecurity_table[] = {
+#ifdef CONFIG_GRKERNSEC_SYSCTL
+#ifdef CONFIG_GRKERNSEC_SYSCTL_DISTRO
+#ifdef CONFIG_GRKERNSEC_IO
+	{
+		.procname	= "disable_priv_io",
+		.data		= &grsec_disable_privio,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#endif
+#ifdef CONFIG_GRKERNSEC_LINK
+	{
+		.procname	= "linking_restrictions",
+		.data		= &grsec_enable_link,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	{
+		.procname	= "enforce_symlinksifowner",
+		.data		= &grsec_enable_symlinkown,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.procname	= "symlinkown_gid",
+		.data		= &grsec_symlinkown_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_BRUTE
+	{
+		.procname	= "deter_bruteforce",
+		.data		= &grsec_enable_brute,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_FIFO
+	{
+		.procname	= "fifo_restrictions",
+		.data		= &grsec_enable_fifo,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
+	{
+		.procname	= "ptrace_readexec",
+		.data		= &grsec_enable_ptrace_readexec,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SETXID
+	{
+		.procname	= "consistent_setxid",
+		.data		= &grsec_enable_setxid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	{
+		.procname	= "ip_blackhole",
+		.data		= &grsec_enable_blackhole,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.procname	= "lastack_retries",
+		.data		= &grsec_lastack_retries,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_EXECLOG
+	{
+		.procname	= "exec_logging",
+		.data		= &grsec_enable_execlog,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	{
+		.procname	= "rwxmap_logging",
+		.data		= &grsec_enable_log_rwxmaps,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SIGNAL
+	{
+		.procname	= "signal_logging",
+		.data		= &grsec_enable_signal,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_FORKFAIL
+	{
+		.procname	= "forkfail_logging",
+		.data		= &grsec_enable_forkfail,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_TIME
+	{
+		.procname	= "timechange_logging",
+		.data		= &grsec_enable_time,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
+	{
+		.procname	= "chroot_deny_shmat",
+		.data		= &grsec_enable_chroot_shmat,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
+	{
+		.procname	= "chroot_deny_unix",
+		.data		= &grsec_enable_chroot_unix,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
+	{
+		.procname	= "chroot_deny_mount",
+		.data		= &grsec_enable_chroot_mount,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
+	{
+		.procname	= "chroot_deny_fchdir",
+		.data		= &grsec_enable_chroot_fchdir,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
+	{
+		.procname	= "chroot_deny_chroot",
+		.data		= &grsec_enable_chroot_double,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
+	{
+		.procname	= "chroot_deny_pivot",
+		.data		= &grsec_enable_chroot_pivot,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
+	{
+		.procname	= "chroot_enforce_chdir",
+		.data		= &grsec_enable_chroot_chdir,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
+	{
+		.procname	= "chroot_deny_chmod",
+		.data		= &grsec_enable_chroot_chmod,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
+	{
+		.procname	= "chroot_deny_mknod",
+		.data		= &grsec_enable_chroot_mknod,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
+	{
+		.procname	= "chroot_restrict_nice",
+		.data		= &grsec_enable_chroot_nice,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
+	{
+		.procname	= "chroot_execlog",
+		.data		= &grsec_enable_chroot_execlog,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	{
+		.procname	= "chroot_caps",
+		.data		= &grsec_enable_chroot_caps,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
+	{
+		.procname	= "chroot_deny_sysctl",
+		.data		= &grsec_enable_chroot_sysctl,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_TPE
+	{
+		.procname	= "tpe",
+		.data		= &grsec_enable_tpe,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.procname	= "tpe_gid",
+		.data		= &grsec_tpe_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
+	{
+		.procname	= "tpe_invert",
+		.data		= &grsec_enable_tpe_invert,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_TPE_ALL
+	{
+		.procname	= "tpe_restrict_all",
+		.data		= &grsec_enable_tpe_all,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
+	{
+		.procname	= "socket_all",
+		.data		= &grsec_enable_socket_all,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.procname	= "socket_all_gid",
+		.data		= &grsec_socket_all_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
+	{
+		.procname	= "socket_client",
+		.data		= &grsec_enable_socket_client,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.procname	= "socket_client_gid",
+		.data		= &grsec_socket_client_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
+	{
+		.procname	= "socket_server",
+		.data		= &grsec_enable_socket_server,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.procname	= "socket_server_gid",
+		.data		= &grsec_socket_server_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
+	{
+		.procname	= "audit_group",
+		.data		= &grsec_enable_group,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.procname	= "audit_gid",
+		.data		= &grsec_audit_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
+	{
+		.procname	= "audit_chdir",
+		.data		= &grsec_enable_chdir,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
+	{
+		.procname	= "audit_mount",
+		.data		= &grsec_enable_mount,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
+	{
+		.procname	= "audit_textrel",
+		.data		= &grsec_enable_audit_textrel,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_DMESG
+	{
+		.procname	= "dmesg",
+		.data		= &grsec_enable_dmesg,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+	{
+		.procname	= "chroot_findtask",
+		.data		= &grsec_enable_chroot_findtask,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_RESLOG
+	{
+		.procname	= "resource_logging",
+		.data		= &grsec_resource_logging,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
+	{
+		.procname	= "audit_ptrace",
+		.data		= &grsec_enable_audit_ptrace,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	{
+		.procname	= "harden_ptrace",
+		.data		= &grsec_enable_harden_ptrace,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+	{
+		.procname	= "grsec_lock",
+		.data		= &grsec_lock,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_ROFS
+	{
+		.procname	= "romount_protect",
+		.data		= &grsec_enable_rofs,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_minmax,
+		.extra1		= &one,
+		.extra2		= &one,
+	},
+#endif
+	{ }
+};
+#endif
diff --git a/grsecurity/grsec_time.c b/grsecurity/grsec_time.c
new file mode 100644
index 0000000..0dc13c3
--- /dev/null
+++ b/grsecurity/grsec_time.c
@@ -0,0 +1,16 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/grinternal.h>
+#include <linux/module.h>
+
+void
+gr_log_timechange(void)
+{
+#ifdef CONFIG_GRKERNSEC_TIME
+	if (grsec_enable_time)
+		gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG);
+#endif
+	return;
+}
+
+EXPORT_SYMBOL(gr_log_timechange);
diff --git a/grsecurity/grsec_tpe.c b/grsecurity/grsec_tpe.c
new file mode 100644
index 0000000..ee57dcf
--- /dev/null
+++ b/grsecurity/grsec_tpe.c
@@ -0,0 +1,73 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/grinternal.h>
+
+extern int gr_acl_tpe_check(void);
+
+int
+gr_tpe_allow(const struct file *file)
+{
+#ifdef CONFIG_GRKERNSEC
+	struct inode *inode = file->f_path.dentry->d_parent->d_inode;
+	const struct cred *cred = current_cred();
+	char *msg = NULL;
+	char *msg2 = NULL;
+
+	// never restrict root
+	if (gr_is_global_root(cred->uid))
+		return 1;
+
+	if (grsec_enable_tpe) {
+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
+		if (grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid))
+			msg = "not being in trusted group";
+		else if (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid))
+			msg = "being in untrusted group";
+#else
+		if (in_group_p(grsec_tpe_gid))
+			msg = "being in untrusted group";
+#endif
+	}
+	if (!msg && gr_acl_tpe_check())
+		msg = "being in untrusted role";
+
+	// not in any affected group/role
+	if (!msg)
+		goto next_check;
+
+	if (gr_is_global_nonroot(inode->i_uid))
+		msg2 = "file in non-root-owned directory";
+	else if (inode->i_mode & S_IWOTH)
+		msg2 = "file in world-writable directory";
+	else if (inode->i_mode & S_IWGRP)
+		msg2 = "file in group-writable directory";
+
+	if (msg && msg2) {
+		char fullmsg[70] = {0};
+		snprintf(fullmsg, sizeof(fullmsg)-1, "%s and %s", msg, msg2);
+		gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, fullmsg, file->f_path.dentry, file->f_path.mnt);
+		return 0;
+	}
+	msg = NULL;
+next_check:
+#ifdef CONFIG_GRKERNSEC_TPE_ALL
+	if (!grsec_enable_tpe || !grsec_enable_tpe_all)
+		return 1;
+
+	if (gr_is_global_nonroot(inode->i_uid) && !uid_eq(inode->i_uid, cred->uid))
+		msg = "directory not owned by user";
+	else if (inode->i_mode & S_IWOTH)
+		msg = "file in world-writable directory";
+	else if (inode->i_mode & S_IWGRP)
+		msg = "file in group-writable directory";
+
+	if (msg) {
+		gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, msg, file->f_path.dentry, file->f_path.mnt);
+		return 0;
+	}
+#endif
+#endif
+	return 1;
+}
diff --git a/grsecurity/grsum.c b/grsecurity/grsum.c
new file mode 100644
index 0000000..9f7b1ac
--- /dev/null
+++ b/grsecurity/grsum.c
@@ -0,0 +1,61 @@
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/scatterlist.h>
+#include <linux/crypto.h>
+#include <linux/gracl.h>
+
+
+#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE)
+#error "crypto and sha256 must be built into the kernel"
+#endif
+
+int
+chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum)
+{
+	char *p;
+	struct crypto_hash *tfm;
+	struct hash_desc desc;
+	struct scatterlist sg;
+	unsigned char temp_sum[GR_SHA_LEN];
+	volatile int retval = 0;
+	volatile int dummy = 0;
+	unsigned int i;
+
+	sg_init_table(&sg, 1);
+
+	tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR(tfm)) {
+		/* should never happen, since sha256 should be built in */
+		return 1;
+	}
+
+	desc.tfm = tfm;
+	desc.flags = 0;
+
+	crypto_hash_init(&desc);
+
+	p = salt;
+	sg_set_buf(&sg, p, GR_SALT_LEN);
+	crypto_hash_update(&desc, &sg, sg.length);
+
+	p = entry->pw;
+	sg_set_buf(&sg, p, strlen(p));
+	
+	crypto_hash_update(&desc, &sg, sg.length);
+
+	crypto_hash_final(&desc, temp_sum);
+
+	memset(entry->pw, 0, GR_PW_LEN);
+
+	for (i = 0; i < GR_SHA_LEN; i++)
+		if (sum[i] != temp_sum[i])
+			retval = 1;
+		else
+			dummy = 1;	// waste a cycle
+
+	crypto_free_hash(tfm);
+
+	return retval;
+}
diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h
index 77ff547..181834f 100644
--- a/include/asm-generic/4level-fixup.h
+++ b/include/asm-generic/4level-fixup.h
@@ -13,8 +13,10 @@
 #define pmd_alloc(mm, pud, address) \
 	((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
  		NULL: pmd_offset(pud, address))
+#define pmd_alloc_kernel(mm, pud, address) pmd_alloc((mm), (pud), (address))
 
 #define pud_alloc(mm, pgd, address)	(pgd)
+#define pud_alloc_kernel(mm, pgd, address)	pud_alloc((mm), (pgd), (address))
 #define pud_offset(pgd, start)		(pgd)
 #define pud_none(pud)			0
 #define pud_bad(pud)			0
diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
index b7babf0..04ad282 100644
--- a/include/asm-generic/atomic-long.h
+++ b/include/asm-generic/atomic-long.h
@@ -22,6 +22,12 @@
 
 typedef atomic64_t atomic_long_t;
 
+#ifdef CONFIG_PAX_REFCOUNT
+typedef atomic64_unchecked_t atomic_long_unchecked_t;
+#else
+typedef atomic64_t atomic_long_unchecked_t;
+#endif
+
 #define ATOMIC_LONG_INIT(i)	ATOMIC64_INIT(i)
 
 static inline long atomic_long_read(atomic_long_t *l)
@@ -31,6 +37,15 @@ static inline long atomic_long_read(atomic_long_t *l)
 	return (long)atomic64_read(v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
+{
+	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
+
+	return (long)atomic64_read_unchecked(v);
+}
+#endif
+
 static inline void atomic_long_set(atomic_long_t *l, long i)
 {
 	atomic64_t *v = (atomic64_t *)l;
@@ -38,6 +53,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
 	atomic64_set(v, i);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
+{
+	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
+
+	atomic64_set_unchecked(v, i);
+}
+#endif
+
 static inline void atomic_long_inc(atomic_long_t *l)
 {
 	atomic64_t *v = (atomic64_t *)l;
@@ -45,6 +69,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
 	atomic64_inc(v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
+{
+	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
+
+	atomic64_inc_unchecked(v);
+}
+#endif
+
 static inline void atomic_long_dec(atomic_long_t *l)
 {
 	atomic64_t *v = (atomic64_t *)l;
@@ -52,6 +85,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
 	atomic64_dec(v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
+{
+	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
+
+	atomic64_dec_unchecked(v);
+}
+#endif
+
 static inline void atomic_long_add(long i, atomic_long_t *l)
 {
 	atomic64_t *v = (atomic64_t *)l;
@@ -59,6 +101,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
 	atomic64_add(i, v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
+{
+	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
+
+	atomic64_add_unchecked(i, v);
+}
+#endif
+
 static inline void atomic_long_sub(long i, atomic_long_t *l)
 {
 	atomic64_t *v = (atomic64_t *)l;
@@ -66,6 +117,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
 	atomic64_sub(i, v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
+{
+	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
+
+	atomic64_sub_unchecked(i, v);
+}
+#endif
+
 static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
 {
 	atomic64_t *v = (atomic64_t *)l;
@@ -101,6 +161,15 @@ static inline long atomic_long_add_return(long i, atomic_long_t *l)
 	return (long)atomic64_add_return(i, v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline long atomic_long_add_return_unchecked(long i, atomic_long_unchecked_t *l)
+{
+	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
+
+	return (long)atomic64_add_return_unchecked(i, v);
+}
+#endif
+
 static inline long atomic_long_sub_return(long i, atomic_long_t *l)
 {
 	atomic64_t *v = (atomic64_t *)l;
@@ -115,6 +184,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
 	return (long)atomic64_inc_return(v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
+{
+	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
+
+	return (long)atomic64_inc_return_unchecked(v);
+}
+#endif
+
 static inline long atomic_long_dec_return(atomic_long_t *l)
 {
 	atomic64_t *v = (atomic64_t *)l;
@@ -140,6 +218,12 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
 
 typedef atomic_t atomic_long_t;
 
+#ifdef CONFIG_PAX_REFCOUNT
+typedef atomic_unchecked_t atomic_long_unchecked_t;
+#else
+typedef atomic_t atomic_long_unchecked_t;
+#endif
+
 #define ATOMIC_LONG_INIT(i)	ATOMIC_INIT(i)
 static inline long atomic_long_read(atomic_long_t *l)
 {
@@ -148,6 +232,15 @@ static inline long atomic_long_read(atomic_long_t *l)
 	return (long)atomic_read(v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
+{
+	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
+
+	return (long)atomic_read_unchecked(v);
+}
+#endif
+
 static inline void atomic_long_set(atomic_long_t *l, long i)
 {
 	atomic_t *v = (atomic_t *)l;
@@ -155,6 +248,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
 	atomic_set(v, i);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
+{
+	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
+
+	atomic_set_unchecked(v, i);
+}
+#endif
+
 static inline void atomic_long_inc(atomic_long_t *l)
 {
 	atomic_t *v = (atomic_t *)l;
@@ -162,6 +264,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
 	atomic_inc(v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
+{
+	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
+
+	atomic_inc_unchecked(v);
+}
+#endif
+
 static inline void atomic_long_dec(atomic_long_t *l)
 {
 	atomic_t *v = (atomic_t *)l;
@@ -169,6 +280,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
 	atomic_dec(v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
+{
+	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
+
+	atomic_dec_unchecked(v);
+}
+#endif
+
 static inline void atomic_long_add(long i, atomic_long_t *l)
 {
 	atomic_t *v = (atomic_t *)l;
@@ -176,6 +296,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
 	atomic_add(i, v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
+{
+	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
+
+	atomic_add_unchecked(i, v);
+}
+#endif
+
 static inline void atomic_long_sub(long i, atomic_long_t *l)
 {
 	atomic_t *v = (atomic_t *)l;
@@ -183,6 +312,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
 	atomic_sub(i, v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
+{
+	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
+
+	atomic_sub_unchecked(i, v);
+}
+#endif
+
 static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
 {
 	atomic_t *v = (atomic_t *)l;
@@ -218,6 +356,16 @@ static inline long atomic_long_add_return(long i, atomic_long_t *l)
 	return (long)atomic_add_return(i, v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline long atomic_long_add_return_unchecked(long i, atomic_long_unchecked_t *l)
+{
+	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
+
+	return (long)atomic_add_return_unchecked(i, v);
+}
+
+#endif
+
 static inline long atomic_long_sub_return(long i, atomic_long_t *l)
 {
 	atomic_t *v = (atomic_t *)l;
@@ -232,6 +380,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
 	return (long)atomic_inc_return(v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
+{
+	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
+
+	return (long)atomic_inc_return_unchecked(v);
+}
+#endif
+
 static inline long atomic_long_dec_return(atomic_long_t *l)
 {
 	atomic_t *v = (atomic_t *)l;
@@ -255,4 +412,57 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
 
 #endif  /*  BITS_PER_LONG == 64  */
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void pax_refcount_needs_these_functions(void)
+{
+	atomic_read_unchecked((atomic_unchecked_t *)NULL);
+	atomic_set_unchecked((atomic_unchecked_t *)NULL, 0);
+	atomic_add_unchecked(0, (atomic_unchecked_t *)NULL);
+	atomic_sub_unchecked(0, (atomic_unchecked_t *)NULL);
+	atomic_inc_unchecked((atomic_unchecked_t *)NULL);
+	(void)atomic_inc_and_test_unchecked((atomic_unchecked_t *)NULL);
+	atomic_inc_return_unchecked((atomic_unchecked_t *)NULL);
+	atomic_add_return_unchecked(0, (atomic_unchecked_t *)NULL);
+	atomic_dec_unchecked((atomic_unchecked_t *)NULL);
+	atomic_cmpxchg_unchecked((atomic_unchecked_t *)NULL, 0, 0);
+	(void)atomic_xchg_unchecked((atomic_unchecked_t *)NULL, 0);
+#ifdef CONFIG_X86
+	atomic_clear_mask_unchecked(0, NULL);
+	atomic_set_mask_unchecked(0, NULL);
+#endif
+
+	atomic_long_read_unchecked((atomic_long_unchecked_t *)NULL);
+	atomic_long_set_unchecked((atomic_long_unchecked_t *)NULL, 0);
+	atomic_long_add_unchecked(0, (atomic_long_unchecked_t *)NULL);
+	atomic_long_sub_unchecked(0, (atomic_long_unchecked_t *)NULL);
+	atomic_long_inc_unchecked((atomic_long_unchecked_t *)NULL);
+	atomic_long_add_return_unchecked(0, (atomic_long_unchecked_t *)NULL);
+	atomic_long_inc_return_unchecked((atomic_long_unchecked_t *)NULL);
+	atomic_long_dec_unchecked((atomic_long_unchecked_t *)NULL);
+}
+#else
+#define atomic_read_unchecked(v) atomic_read(v)
+#define atomic_set_unchecked(v, i) atomic_set((v), (i))
+#define atomic_add_unchecked(i, v) atomic_add((i), (v))
+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v))
+#define atomic_inc_unchecked(v) atomic_inc(v)
+#define atomic_inc_and_test_unchecked(v) atomic_inc_and_test(v)
+#define atomic_inc_return_unchecked(v) atomic_inc_return(v)
+#define atomic_add_return_unchecked(i, v) atomic_add_return((i), (v))
+#define atomic_dec_unchecked(v) atomic_dec(v)
+#define atomic_cmpxchg_unchecked(v, o, n) atomic_cmpxchg((v), (o), (n))
+#define atomic_xchg_unchecked(v, i) atomic_xchg((v), (i))
+#define atomic_clear_mask_unchecked(mask, v) atomic_clear_mask((mask), (v))
+#define atomic_set_mask_unchecked(mask, v) atomic_set_mask((mask), (v))
+
+#define atomic_long_read_unchecked(v) atomic_long_read(v)
+#define atomic_long_set_unchecked(v, i) atomic_long_set((v), (i))
+#define atomic_long_add_unchecked(i, v) atomic_long_add((i), (v))
+#define atomic_long_sub_unchecked(i, v) atomic_long_sub((i), (v))
+#define atomic_long_inc_unchecked(v) atomic_long_inc(v)
+#define atomic_long_add_return_unchecked(i, v) atomic_long_add_return((i), (v))
+#define atomic_long_inc_return_unchecked(v) atomic_long_inc_return(v)
+#define atomic_long_dec_unchecked(v) atomic_long_dec(v)
+#endif
+
 #endif  /*  _ASM_GENERIC_ATOMIC_LONG_H  */
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index 33bd2de..f31bff97 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -153,7 +153,7 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
  * Atomically clears the bits set in @mask from @v
  */
 #ifndef atomic_clear_mask
-static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
+static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
 {
 	unsigned long flags;
 
diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
index b18ce4f..2ee2843 100644
--- a/include/asm-generic/atomic64.h
+++ b/include/asm-generic/atomic64.h
@@ -16,6 +16,8 @@ typedef struct {
 	long long counter;
 } atomic64_t;
 
+typedef atomic64_t atomic64_unchecked_t;
+
 #define ATOMIC64_INIT(i)	{ (i) }
 
 extern long long atomic64_read(const atomic64_t *v);
@@ -39,4 +41,14 @@ extern int	 atomic64_add_unless(atomic64_t *v, long long a, long long u);
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v) 	atomic64_add_unless((v), 1LL, 0LL)
 
+#define atomic64_read_unchecked(v) atomic64_read(v)
+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v) atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v) atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
+
 #endif  /*  _ASM_GENERIC_ATOMIC64_H  */
diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h
index 1bfcfe5..e04c5c9 100644
--- a/include/asm-generic/cache.h
+++ b/include/asm-generic/cache.h
@@ -6,7 +6,7 @@
  * cache lines need to provide their own cache.h.
  */
 
-#define L1_CACHE_SHIFT		5
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_SHIFT		5UL
+#define L1_CACHE_BYTES		(1UL << L1_CACHE_SHIFT)
 
 #endif /* __ASM_GENERIC_CACHE_H */
diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h
index 0d68a1e..b74a761 100644
--- a/include/asm-generic/emergency-restart.h
+++ b/include/asm-generic/emergency-restart.h
@@ -1,7 +1,7 @@
 #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H
 #define _ASM_GENERIC_EMERGENCY_RESTART_H
 
-static inline void machine_emergency_restart(void)
+static inline __noreturn void machine_emergency_restart(void)
 {
 	machine_restart(NULL);
 }
diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h
index 90f99c7..00ce236 100644
--- a/include/asm-generic/kmap_types.h
+++ b/include/asm-generic/kmap_types.h
@@ -2,9 +2,9 @@
 #define _ASM_GENERIC_KMAP_TYPES_H
 
 #ifdef __WITH_KM_FENCE
-# define KM_TYPE_NR 41
+# define KM_TYPE_NR 42
 #else
-# define KM_TYPE_NR 20
+# define KM_TYPE_NR 21
 #endif
 
 #endif
diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
index 9ceb03b..62b0b8f 100644
--- a/include/asm-generic/local.h
+++ b/include/asm-generic/local.h
@@ -23,24 +23,37 @@ typedef struct
 	atomic_long_t a;
 } local_t;
 
+typedef struct {
+	atomic_long_unchecked_t a;
+} local_unchecked_t;
+
 #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
 
 #define local_read(l)	atomic_long_read(&(l)->a)
+#define local_read_unchecked(l)	atomic_long_read_unchecked(&(l)->a)
 #define local_set(l,i)	atomic_long_set((&(l)->a),(i))
+#define local_set_unchecked(l,i)	atomic_long_set_unchecked((&(l)->a),(i))
 #define local_inc(l)	atomic_long_inc(&(l)->a)
+#define local_inc_unchecked(l)	atomic_long_inc_unchecked(&(l)->a)
 #define local_dec(l)	atomic_long_dec(&(l)->a)
+#define local_dec_unchecked(l)	atomic_long_dec_unchecked(&(l)->a)
 #define local_add(i,l)	atomic_long_add((i),(&(l)->a))
+#define local_add_unchecked(i,l)	atomic_long_add_unchecked((i),(&(l)->a))
 #define local_sub(i,l)	atomic_long_sub((i),(&(l)->a))
+#define local_sub_unchecked(i,l)	atomic_long_sub_unchecked((i),(&(l)->a))
 
 #define local_sub_and_test(i, l) atomic_long_sub_and_test((i), (&(l)->a))
 #define local_dec_and_test(l) atomic_long_dec_and_test(&(l)->a)
 #define local_inc_and_test(l) atomic_long_inc_and_test(&(l)->a)
 #define local_add_negative(i, l) atomic_long_add_negative((i), (&(l)->a))
 #define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a))
+#define local_add_return_unchecked(i, l) atomic_long_add_return_unchecked((i), (&(l)->a))
 #define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a))
 #define local_inc_return(l) atomic_long_inc_return(&(l)->a)
+#define local_dec_return(l) atomic_long_dec_return(&(l)->a)
 
 #define local_cmpxchg(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
+#define local_cmpxchg_unchecked(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
 #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))
 #define local_add_unless(l, _a, u) atomic_long_add_unless((&(l)->a), (_a), (u))
 #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a)
diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h
index 725612b..9cc513a 100644
--- a/include/asm-generic/pgtable-nopmd.h
+++ b/include/asm-generic/pgtable-nopmd.h
@@ -1,14 +1,19 @@
 #ifndef _PGTABLE_NOPMD_H
 #define _PGTABLE_NOPMD_H
 
-#ifndef __ASSEMBLY__
-
 #include <asm-generic/pgtable-nopud.h>
 
-struct mm_struct;
-
 #define __PAGETABLE_PMD_FOLDED
 
+#define PMD_SHIFT	PUD_SHIFT
+#define PTRS_PER_PMD	1
+#define PMD_SIZE  	(_AC(1,UL) << PMD_SHIFT)
+#define PMD_MASK  	(~(PMD_SIZE-1))
+
+#ifndef __ASSEMBLY__
+
+struct mm_struct;
+
 /*
  * Having the pmd type consist of a pud gets the size right, and allows
  * us to conceptually access the pud entry that this pmd is folded into
@@ -16,11 +21,6 @@ struct mm_struct;
  */
 typedef struct { pud_t pud; } pmd_t;
 
-#define PMD_SHIFT	PUD_SHIFT
-#define PTRS_PER_PMD	1
-#define PMD_SIZE  	(1UL << PMD_SHIFT)
-#define PMD_MASK  	(~(PMD_SIZE-1))
-
 /*
  * The "pud_xxx()" functions here are trivial for a folded two-level
  * setup: the pmd is never bad, and a pmd always exists (as it's folded
diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
index 810431d..0ec4804f 100644
--- a/include/asm-generic/pgtable-nopud.h
+++ b/include/asm-generic/pgtable-nopud.h
@@ -1,10 +1,15 @@
 #ifndef _PGTABLE_NOPUD_H
 #define _PGTABLE_NOPUD_H
 
-#ifndef __ASSEMBLY__
-
 #define __PAGETABLE_PUD_FOLDED
 
+#define PUD_SHIFT	PGDIR_SHIFT
+#define PTRS_PER_PUD	1
+#define PUD_SIZE  	(_AC(1,UL) << PUD_SHIFT)
+#define PUD_MASK  	(~(PUD_SIZE-1))
+
+#ifndef __ASSEMBLY__
+
 /*
  * Having the pud type consist of a pgd gets the size right, and allows
  * us to conceptually access the pgd entry that this pud is folded into
@@ -12,11 +17,6 @@
  */
 typedef struct { pgd_t pgd; } pud_t;
 
-#define PUD_SHIFT	PGDIR_SHIFT
-#define PTRS_PER_PUD	1
-#define PUD_SIZE  	(1UL << PUD_SHIFT)
-#define PUD_MASK  	(~(PUD_SIZE-1))
-
 /*
  * The "pgd_xxx()" functions here are trivial for a folded two-level
  * setup: the pud is never bad, and a pud always exists (as it's folded
@@ -29,6 +29,7 @@ static inline void pgd_clear(pgd_t *pgd)	{ }
 #define pud_ERROR(pud)				(pgd_ERROR((pud).pgd))
 
 #define pgd_populate(mm, pgd, pud)		do { } while (0)
+#define pgd_populate_kernel(mm, pgd, pud)	do { } while (0)
 /*
  * (puds are folded into pgds so this doesn't get actually called,
  * but the define is needed for a generic inline function.)
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index a59ff51..2594a70 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -688,6 +688,14 @@ static inline pmd_t pmd_mknuma(pmd_t pmd)
 }
 #endif /* CONFIG_NUMA_BALANCING */
 
+#ifndef __HAVE_ARCH_PAX_OPEN_KERNEL
+static inline unsigned long pax_open_kernel(void) { return 0; }
+#endif
+
+#ifndef __HAVE_ARCH_PAX_CLOSE_KERNEL
+static inline unsigned long pax_close_kernel(void) { return 0; }
+#endif
+
 #endif /* CONFIG_MMU */
 
 #endif /* !__ASSEMBLY__ */
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index afa12c7..99d4da0 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -245,6 +245,7 @@
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start_rodata) = .;			\
 		*(.rodata) *(.rodata.*)					\
+		*(.data..read_only)					\
 		*(__vermagic)		/* Kernel version magic */	\
 		. = ALIGN(8);						\
 		VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .;		\
@@ -755,17 +756,18 @@
  * section in the linker script will go there too.  @phdr should have
  * a leading colon.
  *
- * Note that this macros defines __per_cpu_load as an absolute symbol.
+ * Note that this macros defines per_cpu_load as an absolute symbol.
  * If there is no need to put the percpu section at a predetermined
  * address, use PERCPU_SECTION.
  */
 #define PERCPU_VADDR(cacheline, vaddr, phdr)				\
-	VMLINUX_SYMBOL(__per_cpu_load) = .;				\
-	.data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load)		\
+	per_cpu_load = .;						\
+	.data..percpu vaddr : AT(VMLINUX_SYMBOL(per_cpu_load)		\
 				- LOAD_OFFSET) {			\
+		VMLINUX_SYMBOL(__per_cpu_load) = . + per_cpu_load;	\
 		PERCPU_INPUT(cacheline)					\
 	} phdr								\
-	. = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu);
+	. = VMLINUX_SYMBOL(per_cpu_load) + SIZEOF(.data..percpu);
 
 /**
  * PERCPU_SECTION - define output section for percpu area, simple version
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 418d270..bfd2794 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -34,7 +34,7 @@ struct crypto_type {
 	unsigned int maskclear;
 	unsigned int maskset;
 	unsigned int tfmsize;
-};
+} __do_const;
 
 struct crypto_instance {
 	struct crypto_alg alg;
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index f1ce786..086a7a5 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -72,6 +72,7 @@
 #include <linux/workqueue.h>
 #include <linux/poll.h>
 #include <asm/pgalloc.h>
+#include <asm/local.h>
 #include <drm/drm.h>
 #include <drm/drm_sarea.h>
 
@@ -296,10 +297,12 @@ do {										\
  * \param cmd command.
  * \param arg argument.
  */
-typedef int drm_ioctl_t(struct drm_device *dev, void *data,
+typedef int (* const drm_ioctl_t)(struct drm_device *dev, void *data,
+			struct drm_file *file_priv);
+typedef int (* drm_ioctl_no_const_t)(struct drm_device *dev, void *data,
 			struct drm_file *file_priv);
 
-typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
+typedef int (* const drm_ioctl_compat_t)(struct file *filp, unsigned int cmd,
 			       unsigned long arg);
 
 #define DRM_IOCTL_NR(n)                _IOC_NR(n)
@@ -314,9 +317,9 @@ typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
 struct drm_ioctl_desc {
 	unsigned int cmd;
 	int flags;
-	drm_ioctl_t *func;
+	drm_ioctl_t func;
 	unsigned int cmd_drv;
-};
+} __do_const;
 
 /**
  * Creates a driver or general drm_ioctl_desc array entry for the given
@@ -1014,7 +1017,7 @@ struct drm_info_list {
 	int (*show)(struct seq_file*, void*); /** show callback */
 	u32 driver_features; /**< Required driver features for this entry */
 	void *data;
-};
+} __do_const;
 
 /**
  * debugfs node structure. This structure represents a debugfs file.
@@ -1087,7 +1090,7 @@ struct drm_device {
 
 	/** \name Usage Counters */
 	/*@{ */
-	int open_count;			/**< Outstanding files open */
+	local_t open_count;		/**< Outstanding files open */
 	atomic_t ioctl_count;		/**< Outstanding IOCTLs pending */
 	atomic_t vma_count;		/**< Outstanding vma areas open */
 	int buf_use;			/**< Buffers in use -- cannot alloc */
@@ -1098,7 +1101,7 @@ struct drm_device {
 	/*@{ */
 	unsigned long counters;
 	enum drm_stat_type types[15];
-	atomic_t counts[15];
+	atomic_unchecked_t counts[15];
 	/*@} */
 
 	struct list_head filelist;
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index f43d556..94d9343 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -109,7 +109,7 @@ struct drm_encoder_helper_funcs {
 					    struct drm_connector *connector);
 	/* disable encoder when not in use - more explicit than dpms off */
 	void (*disable)(struct drm_encoder *encoder);
-};
+} __no_const;
 
 /**
  * drm_connector_helper_funcs - helper operations for connectors
diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h
index 72dcbe8..8db58d7 100644
--- a/include/drm/ttm/ttm_memory.h
+++ b/include/drm/ttm/ttm_memory.h
@@ -48,7 +48,7 @@
 
 struct ttm_mem_shrink {
 	int (*do_shrink) (struct ttm_mem_shrink *);
-};
+} __no_const;
 
 /**
  * struct ttm_mem_global - Global memory accounting structure.
diff --git a/include/keys/asymmetric-subtype.h b/include/keys/asymmetric-subtype.h
index 4b840e8..155d235 100644
--- a/include/keys/asymmetric-subtype.h
+++ b/include/keys/asymmetric-subtype.h
@@ -37,7 +37,7 @@ struct asymmetric_key_subtype {
 	/* Verify the signature on a key of this subtype (optional) */
 	int (*verify_signature)(const struct key *key,
 				const struct public_key_signature *sig);
-};
+} __do_const;
 
 /**
  * asymmetric_key_subtype - Get the subtype from an asymmetric key
diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
index c1da539..1dcec55 100644
--- a/include/linux/atmdev.h
+++ b/include/linux/atmdev.h
@@ -28,7 +28,7 @@ struct compat_atm_iobuf {
 #endif
 
 struct k_atm_aal_stats {
-#define __HANDLE_ITEM(i) atomic_t i
+#define __HANDLE_ITEM(i) atomic_unchecked_t i
 	__AAL_STAT_ITEMS
 #undef __HANDLE_ITEM
 };
@@ -200,7 +200,7 @@ struct atmdev_ops { /* only send is required */
 	int (*change_qos)(struct atm_vcc *vcc,struct atm_qos *qos,int flags);
 	int (*proc_read)(struct atm_dev *dev,loff_t *pos,char *page);
 	struct module *owner;
-};
+} __do_const ;
 
 struct atmphy_ops {
 	int (*start)(struct atm_dev *dev);
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index c3a0914..ec5d48a 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -73,8 +73,9 @@ struct linux_binfmt {
 	int (*load_binary)(struct linux_binprm *);
 	int (*load_shlib)(struct file *);
 	int (*core_dump)(struct coredump_params *cprm);
+	void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags);
 	unsigned long min_coredump;	/* minimal dump size */
-};
+} __do_const;
 
 extern void __register_binfmt(struct linux_binfmt *fmt, int insert);
 
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 33f358f..7f2c27f 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1499,7 +1499,7 @@ struct block_device_operations {
 	/* this callback is with swap_lock and sometimes page table lock held */
 	void (*swap_slot_free_notify) (struct block_device *, unsigned long);
 	struct module *owner;
-};
+} __do_const;
 
 extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int,
 				 unsigned long);
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 7c2e030..b72475d 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -23,7 +23,7 @@ struct blk_trace {
 	struct dentry *dir;
 	struct dentry *dropped_file;
 	struct dentry *msg_file;
-	atomic_t dropped;
+	atomic_unchecked_t dropped;
 };
 
 extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);
diff --git a/include/linux/cache.h b/include/linux/cache.h
index 4c57065..4307975 100644
--- a/include/linux/cache.h
+++ b/include/linux/cache.h
@@ -16,6 +16,10 @@
 #define __read_mostly
 #endif
 
+#ifndef __read_only
+#define __read_only __read_mostly
+#endif
+
 #ifndef ____cacheline_aligned
 #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
 #endif
diff --git a/include/linux/capability.h b/include/linux/capability.h
index d9a4f7f4..19f77d6 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -213,8 +213,13 @@ extern bool ns_capable(struct user_namespace *ns, int cap);
 extern bool nsown_capable(int cap);
 extern bool inode_capable(const struct inode *inode, int cap);
 extern bool file_ns_capable(const struct file *file, struct user_namespace *ns, int cap);
+extern bool capable_nolog(int cap);
+extern bool ns_capable_nolog(struct user_namespace *ns, int cap);
+extern bool inode_capable_nolog(const struct inode *inode, int cap);
 
 /* audit system wants to get cap info from files as well */
 extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
 
+extern int is_privileged_binary(const struct dentry *dentry);
+
 #endif /* !_LINUX_CAPABILITY_H */
diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
index 8609d57..86e4d79 100644
--- a/include/linux/cdrom.h
+++ b/include/linux/cdrom.h
@@ -87,7 +87,6 @@ struct cdrom_device_ops {
 
 /* driver specifications */
 	const int capability;   /* capability flags */
-	int n_minors;           /* number of active minor devices */
 	/* handle uniform packets for scsi type devices (scsi,atapi) */
 	int (*generic_packet) (struct cdrom_device_info *,
 			       struct packet_command *);
diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
index 42e55de..1cd0e66 100644
--- a/include/linux/cleancache.h
+++ b/include/linux/cleancache.h
@@ -31,7 +31,7 @@ struct cleancache_ops {
 	void (*invalidate_page)(int, struct cleancache_filekey, pgoff_t);
 	void (*invalidate_inode)(int, struct cleancache_filekey);
 	void (*invalidate_fs)(int);
-};
+} __no_const;
 
 extern struct cleancache_ops
 	cleancache_register_ops(struct cleancache_ops *ops);
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 377cd8c..2479845 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -332,14 +332,14 @@ long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
 long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
 		int version, void __user *uptr);
 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
-		void __user *uptr);
+		void __user *uptr) __intentional_overflow(0);
 #else
 long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
 long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp,
 		compat_ssize_t msgsz, int msgflg);
 long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp,
 		compat_ssize_t msgsz, long msgtyp, int msgflg);
-long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
+long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg) __intentional_overflow(0);
 #endif
 long compat_sys_msgctl(int first, int second, void __user *uptr);
 long compat_sys_shmctl(int first, int second, void __user *uptr);
@@ -442,7 +442,7 @@ extern int compat_ptrace_request(struct task_struct *child,
 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 			       compat_ulong_t addr, compat_ulong_t data);
 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
-				  compat_long_t addr, compat_long_t data);
+				  compat_ulong_t addr, compat_ulong_t data);
 
 /*
  * epoll (fs/eventpoll.c) compat bits follow ...
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 68b162d..660f5f0 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -39,9 +39,29 @@
 # define __compiletime_warning(message) __attribute__((warning(message)))
 # define __compiletime_error(message) __attribute__((error(message)))
 #endif /* __CHECKER__ */
+
+#define __alloc_size(...)	__attribute((alloc_size(__VA_ARGS__)))
+#define __bos(ptr, arg)		__builtin_object_size((ptr), (arg))
+#define __bos0(ptr)		__bos((ptr), 0)
+#define __bos1(ptr)		__bos((ptr), 1)
 #endif /* GCC_VERSION >= 40300 */
 
 #if GCC_VERSION >= 40500
+
+#ifdef CONSTIFY_PLUGIN
+#define __no_const __attribute__((no_const))
+#define __do_const __attribute__((do_const))
+#endif
+
+#ifdef SIZE_OVERFLOW_PLUGIN
+#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__)))
+#define __intentional_overflow(...) __attribute__((intentional_overflow(__VA_ARGS__)))
+#endif
+
+#ifdef LATENT_ENTROPY_PLUGIN
+#define __latent_entropy __attribute__((latent_entropy))
+#endif
+
 /*
  * Mark a position in code as unreachable.  This can be used to
  * suppress control flow warnings after asm blocks that transfer
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 10b8f23..5e0b083 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -5,11 +5,14 @@
 
 #ifdef __CHECKER__
 # define __user		__attribute__((noderef, address_space(1)))
+# define __force_user	__force __user
 # define __kernel	__attribute__((address_space(0)))
+# define __force_kernel	__force __kernel
 # define __safe		__attribute__((safe))
 # define __force	__attribute__((force))
 # define __nocast	__attribute__((nocast))
 # define __iomem	__attribute__((noderef, address_space(2)))
+# define __force_iomem	__force __iomem
 # define __must_hold(x)	__attribute__((context(x,1,1)))
 # define __acquires(x)	__attribute__((context(x,0,1)))
 # define __releases(x)	__attribute__((context(x,1,0)))
@@ -17,20 +20,37 @@
 # define __release(x)	__context__(x,-1)
 # define __cond_lock(x,c)	((c) ? ({ __acquire(x); 1; }) : 0)
 # define __percpu	__attribute__((noderef, address_space(3)))
+# define __force_percpu	__force __percpu
 #ifdef CONFIG_SPARSE_RCU_POINTER
 # define __rcu		__attribute__((noderef, address_space(4)))
+# define __force_rcu	__force __rcu
 #else
 # define __rcu
+# define __force_rcu
 #endif
 extern void __chk_user_ptr(const volatile void __user *);
 extern void __chk_io_ptr(const volatile void __iomem *);
 #else
-# define __user
-# define __kernel
+# ifdef CHECKER_PLUGIN
+//#  define __user
+//#  define __force_user
+//#  define __kernel
+//#  define __force_kernel
+# else
+#  ifdef STRUCTLEAK_PLUGIN
+#   define __user __attribute__((user))
+#  else
+#   define __user
+#  endif
+#  define __force_user
+#  define __kernel
+#  define __force_kernel
+# endif
 # define __safe
 # define __force
 # define __nocast
 # define __iomem
+# define __force_iomem
 # define __chk_user_ptr(x) (void)0
 # define __chk_io_ptr(x) (void)0
 # define __builtin_warning(x, y...) (1)
@@ -41,7 +61,9 @@ extern void __chk_io_ptr(const volatile void __iomem *);
 # define __release(x) (void)0
 # define __cond_lock(x,c) (c)
 # define __percpu
+# define __force_percpu
 # define __rcu
+# define __force_rcu
 #endif
 
 /* Indirect macros required for expanded argument pasting, eg. __LINE__. */
@@ -275,6 +297,26 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 # define __attribute_const__	/* unimplemented */
 #endif
 
+#ifndef __no_const
+# define __no_const
+#endif
+
+#ifndef __do_const
+# define __do_const
+#endif
+
+#ifndef __size_overflow
+# define __size_overflow(...)
+#endif
+
+#ifndef __intentional_overflow
+# define __intentional_overflow(...)
+#endif
+
+#ifndef __latent_entropy
+# define __latent_entropy
+#endif
+
 /*
  * Tell gcc if a function is cold. The compiler will assume any path
  * directly leading to the call is unlikely.
@@ -284,6 +326,22 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 #define __cold
 #endif
 
+#ifndef __alloc_size
+#define __alloc_size(...)
+#endif
+
+#ifndef __bos
+#define __bos(ptr, arg)
+#endif
+
+#ifndef __bos0
+#define __bos0(ptr)
+#endif
+
+#ifndef __bos1
+#define __bos1(ptr)
+#endif
+
 /* Simple shorthand for a section definition */
 #ifndef __section
 # define __section(S) __attribute__ ((__section__(#S)))
@@ -349,6 +407,7 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
  * use is to mediate communication between process-level code and irq/NMI
  * handlers, all running on the same CPU.
  */
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+#define ACCESS_ONCE(x) (*(volatile const typeof(x) *)&(x))
+#define ACCESS_ONCE_RW(x) (*(volatile typeof(x) *)&(x))
 
 #endif /* __LINUX_COMPILER_H */
diff --git a/include/linux/completion.h b/include/linux/completion.h
index 33f0280..35c6568 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -79,15 +79,15 @@ static inline void init_completion(struct completion *x)
 extern void wait_for_completion(struct completion *);
 extern void wait_for_completion_io(struct completion *);
 extern int wait_for_completion_interruptible(struct completion *x);
-extern int wait_for_completion_killable(struct completion *x);
+extern int wait_for_completion_killable(struct completion *x) __intentional_overflow(-1);
 extern unsigned long wait_for_completion_timeout(struct completion *x,
 						   unsigned long timeout);
 extern unsigned long wait_for_completion_io_timeout(struct completion *x,
 						    unsigned long timeout);
 extern long wait_for_completion_interruptible_timeout(
-	struct completion *x, unsigned long timeout);
+	struct completion *x, unsigned long timeout) __intentional_overflow(-1);
 extern long wait_for_completion_killable_timeout(
-	struct completion *x, unsigned long timeout);
+	struct completion *x, unsigned long timeout) __intentional_overflow(-1);
 extern bool try_wait_for_completion(struct completion *x);
 extern bool completion_done(struct completion *x);
 
diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index 34025df..d94bbbc 100644
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -125,7 +125,7 @@ struct configfs_attribute {
 	const char		*ca_name;
 	struct module 		*ca_owner;
 	umode_t			ca_mode;
-};
+} __do_const;
 
 /*
  * Users often need to create attribute structures for their configurable
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index ce7a074..01ab8ac 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -115,7 +115,7 @@ enum {
 /* Need to know about CPUs going up/down? */
 #if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE)
 #define cpu_notifier(fn, pri) {					\
-	static struct notifier_block fn##_nb __cpuinitdata =	\
+	static struct notifier_block fn##_nb =			\
 		{ .notifier_call = fn, .priority = pri };	\
 	register_cpu_notifier(&fn##_nb);			\
 }
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index a22944c..4e695fe 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -252,7 +252,7 @@ struct cpufreq_driver {
 	int	(*suspend)	(struct cpufreq_policy *policy);
 	int	(*resume)	(struct cpufreq_policy *policy);
 	struct freq_attr	**attr;
-};
+} __do_const;
 
 /* flags */
 
@@ -311,6 +311,7 @@ struct global_attr {
 	ssize_t (*store)(struct kobject *a, struct attribute *b,
 			 const char *c, size_t count);
 };
+typedef struct global_attr __no_const global_attr_no_const;
 
 #define define_one_global_ro(_name)		\
 static struct global_attr _name =		\
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 480c14d..552896f 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -52,7 +52,8 @@ struct cpuidle_state {
 			int index);
 
 	int (*enter_dead) (struct cpuidle_device *dev, int index);
-};
+} __do_const;
+typedef struct cpuidle_state __no_const cpuidle_state_no_const;
 
 /* Idle State Flags */
 #define CPUIDLE_FLAG_TIME_VALID	(0x01) /* is residency time measurable? */
@@ -194,7 +195,7 @@ struct cpuidle_governor {
 	void (*reflect)		(struct cpuidle_device *dev, int index);
 
 	struct module 		*owner;
-};
+} __do_const;
 
 #ifdef CONFIG_CPU_IDLE
 
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 0325602..5e9feff 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -118,17 +118,17 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
 }
 
 /* Valid inputs for n are -1 and 0. */
-static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
+static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
 {
 	return n+1;
 }
 
-static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
+static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
 {
 	return n+1;
 }
 
-static inline unsigned int cpumask_next_and(int n,
+static inline unsigned int __intentional_overflow(-1) cpumask_next_and(int n,
 					    const struct cpumask *srcp,
 					    const struct cpumask *andp)
 {
@@ -167,7 +167,7 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
  *
  * Returns >= nr_cpu_ids if no further cpus set.
  */
-static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
+static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
 {
 	/* -1 is a legal arg here. */
 	if (n != -1)
@@ -182,7 +182,7 @@ static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
  *
  * Returns >= nr_cpu_ids if no further cpus unset.
  */
-static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
+static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
 {
 	/* -1 is a legal arg here. */
 	if (n != -1)
@@ -190,7 +190,7 @@ static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
 	return find_next_zero_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1);
 }
 
-int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
+int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *) __intentional_overflow(-1);
 int cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
 
 /**
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 04421e8..6bce4ef 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -194,6 +194,9 @@ static inline void validate_creds_for_do_exit(struct task_struct *tsk)
 static inline void validate_process_creds(void)
 {
 }
+static inline void validate_task_creds(struct task_struct *task)
+{
+}
 #endif
 
 /**
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index b92eadf..b4ecdc1 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -373,7 +373,7 @@ struct cipher_tfm {
 	                  const u8 *key, unsigned int keylen);
 	void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 	void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
-};
+} __no_const;
 
 struct hash_tfm {
 	int (*init)(struct hash_desc *desc);
@@ -394,13 +394,13 @@ struct compress_tfm {
 	int (*cot_decompress)(struct crypto_tfm *tfm,
 	                      const u8 *src, unsigned int slen,
 	                      u8 *dst, unsigned int *dlen);
-};
+} __no_const;
 
 struct rng_tfm {
 	int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata,
 			      unsigned int dlen);
 	int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
-};
+} __no_const;
 
 #define crt_ablkcipher	crt_u.ablkcipher
 #define crt_aead	crt_u.aead
diff --git a/include/linux/ctype.h b/include/linux/ctype.h
index 8acfe31..6ffccd63 100644
--- a/include/linux/ctype.h
+++ b/include/linux/ctype.h
@@ -56,7 +56,7 @@ static inline unsigned char __toupper(unsigned char c)
  * Fast implementation of tolower() for internal usage. Do not use in your
  * code.
  */
-static inline char _tolower(const char c)
+static inline unsigned char _tolower(const unsigned char c)
 {
 	return c | 0x20;
 }
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 7925bf0..d5143d2 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -77,7 +77,7 @@ static void free(void *where)
  * warnings when not needed (indeed large_malloc / large_free are not
  * needed by inflate */
 
-#define malloc(a) kmalloc(a, GFP_KERNEL)
+#define malloc(a) kmalloc((a), GFP_KERNEL)
 #define free(a) kfree(a)
 
 #define large_malloc(a) vmalloc(a)
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index fe8c447..bdc1f33 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -114,7 +114,7 @@ struct devfreq_governor {
 	int (*get_target_freq)(struct devfreq *this, unsigned long *freq);
 	int (*event_handler)(struct devfreq *devfreq,
 				unsigned int event, void *data);
-};
+} __do_const;
 
 /**
  * struct devfreq - Device devfreq structure
diff --git a/include/linux/device.h b/include/linux/device.h
index 9d6464e..8a5cc92 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -295,7 +295,7 @@ struct subsys_interface {
 	struct list_head node;
 	int (*add_dev)(struct device *dev, struct subsys_interface *sif);
 	int (*remove_dev)(struct device *dev, struct subsys_interface *sif);
-};
+} __do_const;
 
 int subsys_interface_register(struct subsys_interface *sif);
 void subsys_interface_unregister(struct subsys_interface *sif);
@@ -475,7 +475,7 @@ struct device_type {
 	void (*release)(struct device *dev);
 
 	const struct dev_pm_ops *pm;
-};
+} __do_const;
 
 /* interface for exporting device attributes */
 struct device_attribute {
@@ -485,11 +485,12 @@ struct device_attribute {
 	ssize_t (*store)(struct device *dev, struct device_attribute *attr,
 			 const char *buf, size_t count);
 };
+typedef struct device_attribute __no_const device_attribute_no_const;
 
 struct dev_ext_attribute {
 	struct device_attribute attr;
 	void *var;
-};
+} __do_const;
 
 ssize_t device_show_ulong(struct device *dev, struct device_attribute *attr,
 			  char *buf);
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 94af418..b1ca7a2 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -54,7 +54,7 @@ struct dma_map_ops {
 	u64 (*get_required_mask)(struct device *dev);
 #endif
 	int is_phys;
-};
+} __do_const;
 
 #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
 
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 91ac8da..a841318 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -1034,9 +1034,9 @@ struct dma_pinned_list {
 struct dma_pinned_list *dma_pin_iovec_pages(struct iovec *iov, size_t len);
 void dma_unpin_iovec_pages(struct dma_pinned_list* pinned_list);
 
-dma_cookie_t dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov,
+dma_cookie_t __intentional_overflow(0) dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov,
 	struct dma_pinned_list *pinned_list, unsigned char *kdata, size_t len);
-dma_cookie_t dma_memcpy_pg_to_iovec(struct dma_chan *chan, struct iovec *iov,
+dma_cookie_t __intentional_overflow(0) dma_memcpy_pg_to_iovec(struct dma_chan *chan, struct iovec *iov,
 	struct dma_pinned_list *pinned_list, struct page *page,
 	unsigned int offset, size_t len);
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 3d7df3d..301f024 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -740,6 +740,7 @@ struct efivar_operations {
 	efi_set_variable_t *set_variable;
 	efi_query_variable_store_t *query_variable_store;
 };
+typedef struct efivar_operations __no_const efivar_operations_no_const;
 
 struct efivars {
 	/*
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 40a3c0e..4c45a38 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -24,6 +24,7 @@ extern Elf32_Dyn _DYNAMIC [];
 #define elf_note	elf32_note
 #define elf_addr_t	Elf32_Off
 #define Elf_Half	Elf32_Half
+#define elf_dyn		Elf32_Dyn
 
 #else
 
@@ -34,6 +35,7 @@ extern Elf64_Dyn _DYNAMIC [];
 #define elf_note	elf64_note
 #define elf_addr_t	Elf64_Off
 #define Elf_Half	Elf64_Half
+#define elf_dyn		Elf64_Dyn
 
 #endif
 
diff --git a/include/linux/err.h b/include/linux/err.h
index f2edce2..cc2082c 100644
--- a/include/linux/err.h
+++ b/include/linux/err.h
@@ -19,12 +19,12 @@
 
 #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
 
-static inline void * __must_check ERR_PTR(long error)
+static inline void * __must_check __intentional_overflow(-1) ERR_PTR(long error)
 {
 	return (void *) error;
 }
 
-static inline long __must_check PTR_ERR(const void *ptr)
+static inline long __must_check __intentional_overflow(-1) PTR_ERR(const void *ptr)
 {
 	return (long) ptr;
 }
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index fcb51c8..bdafcf6 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -134,7 +134,7 @@ struct extcon_dev {
 	/* /sys/class/extcon/.../mutually_exclusive/... */
 	struct attribute_group attr_g_muex;
 	struct attribute **attrs_muex;
-	struct device_attribute *d_attrs_muex;
+	device_attribute_no_const *d_attrs_muex;
 };
 
 /**
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 58b9860..58e5516 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -304,7 +304,7 @@ struct fb_ops {
 	/* called at KDB enter and leave time to prepare the console */
 	int (*fb_debug_enter)(struct fb_info *info);
 	int (*fb_debug_leave)(struct fb_info *info);
-};
+} __do_const;
 
 #ifdef CONFIG_FB_TILEBLITTING
 #define FB_TILE_CURSOR_NONE        0
diff --git a/include/linux/filter.h b/include/linux/filter.h
index c45eabc..baa0be5 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -20,6 +20,7 @@ struct compat_sock_fprog {
 
 struct sk_buff;
 struct sock;
+struct bpf_jit_work;
 
 struct sk_filter
 {
@@ -27,6 +28,9 @@ struct sk_filter
 	unsigned int         	len;	/* Number of filter blocks */
 	unsigned int		(*bpf_func)(const struct sk_buff *skb,
 					    const struct sock_filter *filter);
+#ifdef CONFIG_BPF_JIT
+	struct bpf_jit_work	*work;
+#endif
 	struct rcu_head		rcu;
 	struct sock_filter     	insns[0];
 };
diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
index 3044254..9767f41 100644
--- a/include/linux/frontswap.h
+++ b/include/linux/frontswap.h
@@ -11,7 +11,7 @@ struct frontswap_ops {
 	int (*load)(unsigned, pgoff_t, struct page *);
 	void (*invalidate_page)(unsigned, pgoff_t);
 	void (*invalidate_area)(unsigned);
-};
+} __no_const;
 
 extern bool frontswap_enabled;
 extern struct frontswap_ops
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2c28271..8d3d74c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1541,7 +1541,8 @@ struct file_operations {
 	long (*fallocate)(struct file *file, int mode, loff_t offset,
 			  loff_t len);
 	int (*show_fdinfo)(struct seq_file *m, struct file *f);
-};
+} __do_const;
+typedef struct file_operations __no_const file_operations_no_const;
 
 struct inode_operations {
 	struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
@@ -2672,4 +2673,14 @@ static inline void inode_has_no_xattr(struct inode *inode)
 		inode->i_flags |= S_NOSEC;
 }
 
+static inline bool is_sidechannel_device(const struct inode *inode)
+{
+#ifdef CONFIG_GRKERNSEC_DEVICE_SIDECHANNEL
+	umode_t mode = inode->i_mode;
+	return ((S_ISCHR(mode) || S_ISBLK(mode)) && (mode & (S_IROTH | S_IWOTH)));
+#else
+	return false;
+#endif
+}
+
 #endif /* _LINUX_FS_H */
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 2b93a9a..855d94a 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -6,7 +6,7 @@
 #include <linux/seqlock.h>
 
 struct fs_struct {
-	int users;
+	atomic_t users;
 	spinlock_t lock;
 	seqcount_t seq;
 	int umask;
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 5dfa0aa..6acf322 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -112,7 +112,7 @@ struct fscache_operation {
 	fscache_operation_release_t release;
 };
 
-extern atomic_t fscache_op_debug_id;
+extern atomic_unchecked_t fscache_op_debug_id;
 extern void fscache_op_work_func(struct work_struct *work);
 
 extern void fscache_enqueue_operation(struct fscache_operation *);
@@ -134,7 +134,7 @@ static inline void fscache_operation_init(struct fscache_operation *op,
 	INIT_WORK(&op->work, fscache_op_work_func);
 	atomic_set(&op->usage, 1);
 	op->state = FSCACHE_OP_ST_INITIALISED;
-	op->debug_id = atomic_inc_return(&fscache_op_debug_id);
+	op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
 	op->processor = processor;
 	op->release = release;
 	INIT_LIST_HEAD(&op->pend_link);
diff --git a/include/linux/fscache.h b/include/linux/fscache.h
index 7a08623..4c07b0f 100644
--- a/include/linux/fscache.h
+++ b/include/linux/fscache.h
@@ -152,7 +152,7 @@ struct fscache_cookie_def {
 	 * - this is mandatory for any object that may have data
 	 */
 	void (*now_uncached)(void *cookie_netfs_data);
-};
+} __do_const;
 
 /*
  * fscache cached network filesystem type
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index a78680a..87bd73e 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -195,6 +195,9 @@ static inline void fsnotify_access(struct file *file)
 	struct inode *inode = path->dentry->d_inode;
 	__u32 mask = FS_ACCESS;
 
+	if (is_sidechannel_device(inode))
+		return;
+
 	if (S_ISDIR(inode->i_mode))
 		mask |= FS_ISDIR;
 
@@ -213,6 +216,9 @@ static inline void fsnotify_modify(struct file *file)
 	struct inode *inode = path->dentry->d_inode;
 	__u32 mask = FS_MODIFY;
 
+	if (is_sidechannel_device(inode))
+		return;
+
 	if (S_ISDIR(inode->i_mode))
 		mask |= FS_ISDIR;
 
@@ -315,7 +321,7 @@ static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
  */
 static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name)
 {
-	return kstrdup(name, GFP_KERNEL);
+	return (const unsigned char *)kstrdup((const char *)name, GFP_KERNEL);
 }
 
 /*
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 13a54d0..c6ce2a7 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -274,7 +274,7 @@ extern int trace_define_field(struct ftrace_event_call *call, const char *type,
 extern int trace_add_event_call(struct ftrace_event_call *call);
 extern void trace_remove_event_call(struct ftrace_event_call *call);
 
-#define is_signed_type(type)	(((type)(-1)) < (type)0)
+#define is_signed_type(type)	(((type)(-1)) < (type)1)
 
 int trace_set_clr_event(const char *system, const char *event, int set);
 
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 9f3c275..911b591 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -194,7 +194,7 @@ struct gendisk {
 	struct kobject *slave_dir;
 
 	struct timer_rand_state *random;
-	atomic_t sync_io;		/* RAID */
+	atomic_unchecked_t sync_io;	/* RAID */
 	struct disk_events *ev;
 #ifdef  CONFIG_BLK_DEV_INTEGRITY
 	struct blk_integrity *integrity;
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 023bc34..b02b46a 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -246,7 +246,7 @@ const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd)
 },
 
 #define ZZZ_genl_ops		CONCAT_(GENL_MAGIC_FAMILY, _genl_ops)
-static struct genl_ops ZZZ_genl_ops[] __read_mostly = {
+static struct genl_ops ZZZ_genl_ops[] = {
 #include GENL_MAGIC_INCLUDE_FILE
 };
 
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 0f615eb..5c3832f 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -35,6 +35,13 @@ struct vm_area_struct;
 #define ___GFP_NO_KSWAPD	0x400000u
 #define ___GFP_OTHER_NODE	0x800000u
 #define ___GFP_WRITE		0x1000000u
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+#define ___GFP_USERCOPY		0x2000000u
+#else
+#define ___GFP_USERCOPY		0
+#endif
+
 /* If the above are modified, __GFP_BITS_SHIFT may need updating */
 
 /*
@@ -92,6 +99,7 @@ struct vm_area_struct;
 #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */
 #define __GFP_KMEMCG	((__force gfp_t)___GFP_KMEMCG) /* Allocation comes from a memcg-accounted resource */
 #define __GFP_WRITE	((__force gfp_t)___GFP_WRITE)	/* Allocator intends to dirty page */
+#define __GFP_USERCOPY	((__force gfp_t)___GFP_USERCOPY)/* Allocator intends to copy page to/from userland */
 
 /*
  * This may seem redundant, but it's a way of annotating false positives vs.
@@ -99,7 +107,7 @@ struct vm_area_struct;
  */
 #define __GFP_NOTRACK_FALSE_POSITIVE (__GFP_NOTRACK)
 
-#define __GFP_BITS_SHIFT 25	/* Room for N __GFP_FOO bits */
+#define __GFP_BITS_SHIFT 26	/* Room for N __GFP_FOO bits */
 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
 
 /* This equals 0, but use constants in case they ever change */
@@ -153,6 +161,8 @@ struct vm_area_struct;
 /* 4GB DMA on some platforms */
 #define GFP_DMA32	__GFP_DMA32
 
+#define GFP_USERCOPY	__GFP_USERCOPY
+
 /* Convert GFP flags to their corresponding migrate type */
 static inline int allocflags_to_migratetype(gfp_t gfp_flags)
 {
diff --git a/include/linux/gracl.h b/include/linux/gracl.h
new file mode 100644
index 0000000..ebe6d72
--- /dev/null
+++ b/include/linux/gracl.h
@@ -0,0 +1,319 @@
+#ifndef GR_ACL_H
+#define GR_ACL_H
+
+#include <linux/grdefs.h>
+#include <linux/resource.h>
+#include <linux/capability.h>
+#include <linux/dcache.h>
+#include <asm/resource.h>
+
+/* Major status information */
+
+#define GR_VERSION  "grsecurity 2.9.1"
+#define GRSECURITY_VERSION 0x2901
+
+enum {
+	GR_SHUTDOWN = 0,
+	GR_ENABLE = 1,
+	GR_SPROLE = 2,
+	GR_RELOAD = 3,
+	GR_SEGVMOD = 4,
+	GR_STATUS = 5,
+	GR_UNSPROLE = 6,
+	GR_PASSSET = 7,
+	GR_SPROLEPAM = 8,
+};
+
+/* Password setup definitions
+ * kernel/grhash.c */
+enum {
+	GR_PW_LEN = 128,
+	GR_SALT_LEN = 16,
+	GR_SHA_LEN = 32,
+};
+
+enum {
+	GR_SPROLE_LEN = 64,
+};
+
+enum {
+	GR_NO_GLOB = 0,
+	GR_REG_GLOB,
+	GR_CREATE_GLOB
+};
+
+#define GR_NLIMITS 32
+
+/* Begin Data Structures */
+
+struct sprole_pw {
+	unsigned char *rolename;
+	unsigned char salt[GR_SALT_LEN];
+	unsigned char sum[GR_SHA_LEN];	/* 256-bit SHA hash of the password */
+};
+
+struct name_entry {
+	__u32 key;
+	ino_t inode;
+	dev_t device;
+	char *name;
+	__u16 len;
+	__u8 deleted;
+	struct name_entry *prev;
+	struct name_entry *next;
+};
+
+struct inodev_entry {
+	struct name_entry *nentry;
+	struct inodev_entry *prev;
+	struct inodev_entry *next;
+};
+
+struct acl_role_db {
+	struct acl_role_label **r_hash;
+	__u32 r_size;
+};
+
+struct inodev_db {
+	struct inodev_entry **i_hash;
+	__u32 i_size;
+};
+
+struct name_db {
+	struct name_entry **n_hash;
+	__u32 n_size;
+};
+
+struct crash_uid {
+	uid_t uid;
+	unsigned long expires;
+};
+
+struct gr_hash_struct {
+	void **table;
+	void **nametable;
+	void *first;
+	__u32 table_size;
+	__u32 used_size;
+	int type;
+};
+
+/* Userspace Grsecurity ACL data structures */
+
+struct acl_subject_label {
+	char *filename;
+	ino_t inode;
+	dev_t device;
+	__u32 mode;
+	kernel_cap_t cap_mask;
+	kernel_cap_t cap_lower;
+	kernel_cap_t cap_invert_audit;
+
+	struct rlimit res[GR_NLIMITS];
+	__u32 resmask;
+
+	__u8 user_trans_type;
+	__u8 group_trans_type;
+	uid_t *user_transitions;
+	gid_t *group_transitions;
+	__u16 user_trans_num;
+	__u16 group_trans_num;
+
+	__u32 sock_families[2];
+	__u32 ip_proto[8];
+	__u32 ip_type;
+	struct acl_ip_label **ips;
+	__u32 ip_num;
+	__u32 inaddr_any_override;
+
+	__u32 crashes;
+	unsigned long expires;
+
+	struct acl_subject_label *parent_subject;
+	struct gr_hash_struct *hash;
+	struct acl_subject_label *prev;
+	struct acl_subject_label *next;
+
+	struct acl_object_label **obj_hash;
+	__u32 obj_hash_size;
+	__u16 pax_flags;
+};
+
+struct role_allowed_ip {
+	__u32 addr;
+	__u32 netmask;
+
+	struct role_allowed_ip *prev;
+	struct role_allowed_ip *next;
+};
+
+struct role_transition {
+	char *rolename;
+
+	struct role_transition *prev;
+	struct role_transition *next;
+};
+
+struct acl_role_label {
+	char *rolename;
+	uid_t uidgid;
+	__u16 roletype;
+
+	__u16 auth_attempts;
+	unsigned long expires;
+
+	struct acl_subject_label *root_label;
+	struct gr_hash_struct *hash;
+
+	struct acl_role_label *prev;
+	struct acl_role_label *next;
+
+	struct role_transition *transitions;
+	struct role_allowed_ip *allowed_ips;
+	uid_t *domain_children;
+	__u16 domain_child_num;
+
+	umode_t umask;
+
+	struct acl_subject_label **subj_hash;
+	__u32 subj_hash_size;
+};
+
+struct user_acl_role_db {
+	struct acl_role_label **r_table;
+	__u32 num_pointers;		/* Number of allocations to track */
+	__u32 num_roles;		/* Number of roles */
+	__u32 num_domain_children;	/* Number of domain children */
+	__u32 num_subjects;		/* Number of subjects */
+	__u32 num_objects;		/* Number of objects */
+};
+
+struct acl_object_label {
+	char *filename;
+	ino_t inode;
+	dev_t device;
+	__u32 mode;
+
+	struct acl_subject_label *nested;
+	struct acl_object_label *globbed;
+
+	/* next two structures not used */
+
+	struct acl_object_label *prev;
+	struct acl_object_label *next;
+};
+
+struct acl_ip_label {
+	char *iface;
+	__u32 addr;
+	__u32 netmask;
+	__u16 low, high;
+	__u8 mode;
+	__u32 type;
+	__u32 proto[8];
+
+	/* next two structures not used */
+
+	struct acl_ip_label *prev;
+	struct acl_ip_label *next;
+};
+
+struct gr_arg {
+	struct user_acl_role_db role_db;
+	unsigned char pw[GR_PW_LEN];
+	unsigned char salt[GR_SALT_LEN];
+	unsigned char sum[GR_SHA_LEN];
+	unsigned char sp_role[GR_SPROLE_LEN];
+	struct sprole_pw *sprole_pws;
+	dev_t segv_device;
+	ino_t segv_inode;
+	uid_t segv_uid;
+	__u16 num_sprole_pws;
+	__u16 mode;
+};
+
+struct gr_arg_wrapper {
+	struct gr_arg *arg;
+	__u32 version;
+	__u32 size;
+};
+
+struct subject_map {
+	struct acl_subject_label *user;
+	struct acl_subject_label *kernel;
+	struct subject_map *prev;
+	struct subject_map *next;
+};
+
+struct acl_subj_map_db {
+	struct subject_map **s_hash;
+	__u32 s_size;
+};
+
+/* End Data Structures Section */
+
+/* Hash functions generated by empirical testing by Brad Spengler
+   Makes good use of the low bits of the inode.  Generally 0-1 times
+   in loop for successful match.  0-3 for unsuccessful match.
+   Shift/add algorithm with modulus of table size and an XOR*/
+
+static __inline__ unsigned int
+gr_rhash(const uid_t uid, const __u16 type, const unsigned int sz)
+{
+	return ((((uid + type) << (16 + type)) ^ uid) % sz);
+}
+
+ static __inline__ unsigned int
+gr_shash(const struct acl_subject_label *userp, const unsigned int sz)
+{
+	return ((const unsigned long)userp % sz);
+}
+
+static __inline__ unsigned int
+gr_fhash(const ino_t ino, const dev_t dev, const unsigned int sz)
+{
+	return (((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9))) % sz);
+}
+
+static __inline__ unsigned int
+gr_nhash(const char *name, const __u16 len, const unsigned int sz)
+{
+	return full_name_hash((const unsigned char *)name, len) % sz;
+}
+
+#define FOR_EACH_ROLE_START(role) \
+	role = role_list; \
+	while (role) {
+
+#define FOR_EACH_ROLE_END(role) \
+		role = role->prev; \
+	}
+
+#define FOR_EACH_SUBJECT_START(role,subj,iter) \
+	subj = NULL; \
+	iter = 0; \
+	while (iter < role->subj_hash_size) { \
+		if (subj == NULL) \
+			subj = role->subj_hash[iter]; \
+		if (subj == NULL) { \
+			iter++; \
+			continue; \
+		}
+
+#define FOR_EACH_SUBJECT_END(subj,iter) \
+		subj = subj->next; \
+		if (subj == NULL) \
+			iter++; \
+	}
+
+
+#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \
+	subj = role->hash->first; \
+	while (subj != NULL) {
+
+#define FOR_EACH_NESTED_SUBJECT_END(subj) \
+		subj = subj->next; \
+	}
+
+#endif
+
diff --git a/include/linux/gralloc.h b/include/linux/gralloc.h
new file mode 100644
index 0000000..323ecf2
--- /dev/null
+++ b/include/linux/gralloc.h
@@ -0,0 +1,9 @@
+#ifndef __GRALLOC_H
+#define __GRALLOC_H
+
+void acl_free_all(void);
+int acl_alloc_stack_init(unsigned long size);
+void *acl_alloc(unsigned long len);
+void *acl_alloc_num(unsigned long num, unsigned long len);
+
+#endif
diff --git a/include/linux/grdefs.h b/include/linux/grdefs.h
new file mode 100644
index 0000000..be66033
--- /dev/null
+++ b/include/linux/grdefs.h
@@ -0,0 +1,140 @@
+#ifndef GRDEFS_H
+#define GRDEFS_H
+
+/* Begin grsecurity status declarations */
+
+enum {
+	GR_READY = 0x01,
+	GR_STATUS_INIT = 0x00	// disabled state
+};
+
+/* Begin  ACL declarations */
+
+/* Role flags */
+
+enum {
+	GR_ROLE_USER = 0x0001,
+	GR_ROLE_GROUP = 0x0002,
+	GR_ROLE_DEFAULT = 0x0004,
+	GR_ROLE_SPECIAL = 0x0008,
+	GR_ROLE_AUTH = 0x0010,
+	GR_ROLE_NOPW = 0x0020,
+	GR_ROLE_GOD = 0x0040,
+	GR_ROLE_LEARN = 0x0080,
+	GR_ROLE_TPE = 0x0100,
+	GR_ROLE_DOMAIN = 0x0200,
+	GR_ROLE_PAM = 0x0400,
+	GR_ROLE_PERSIST = 0x0800
+};
+
+/* ACL Subject and Object mode flags */
+enum {
+	GR_DELETED = 0x80000000
+};
+
+/* ACL Object-only mode flags */
+enum {
+	GR_READ 	= 0x00000001,
+	GR_APPEND 	= 0x00000002,
+	GR_WRITE 	= 0x00000004,
+	GR_EXEC 	= 0x00000008,
+	GR_FIND 	= 0x00000010,
+	GR_INHERIT 	= 0x00000020,
+	GR_SETID 	= 0x00000040,
+	GR_CREATE 	= 0x00000080,
+	GR_DELETE 	= 0x00000100,
+	GR_LINK		= 0x00000200,
+	GR_AUDIT_READ 	= 0x00000400,
+	GR_AUDIT_APPEND = 0x00000800,
+	GR_AUDIT_WRITE 	= 0x00001000,
+	GR_AUDIT_EXEC 	= 0x00002000,
+	GR_AUDIT_FIND 	= 0x00004000,
+	GR_AUDIT_INHERIT= 0x00008000,
+	GR_AUDIT_SETID 	= 0x00010000,
+	GR_AUDIT_CREATE = 0x00020000,
+	GR_AUDIT_DELETE = 0x00040000,
+	GR_AUDIT_LINK	= 0x00080000,
+	GR_PTRACERD 	= 0x00100000,
+	GR_NOPTRACE	= 0x00200000,
+	GR_SUPPRESS 	= 0x00400000,
+	GR_NOLEARN 	= 0x00800000,
+	GR_INIT_TRANSFER= 0x01000000
+};
+
+#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \
+		   GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \
+		   GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK)
+
+/* ACL subject-only mode flags */
+enum {
+	GR_KILL 	= 0x00000001,
+	GR_VIEW 	= 0x00000002,
+	GR_PROTECTED 	= 0x00000004,
+	GR_LEARN 	= 0x00000008,
+	GR_OVERRIDE 	= 0x00000010,
+	/* just a placeholder, this mode is only used in userspace */
+	GR_DUMMY 	= 0x00000020,
+	GR_PROTSHM	= 0x00000040,
+	GR_KILLPROC	= 0x00000080,
+	GR_KILLIPPROC	= 0x00000100,
+	/* just a placeholder, this mode is only used in userspace */
+	GR_NOTROJAN	= 0x00000200,
+	GR_PROTPROCFD	= 0x00000400,
+	GR_PROCACCT	= 0x00000800,
+	GR_RELAXPTRACE	= 0x00001000,
+	//GR_NESTED	= 0x00002000,
+	GR_INHERITLEARN	= 0x00004000,
+	GR_PROCFIND	= 0x00008000,
+	GR_POVERRIDE	= 0x00010000,
+	GR_KERNELAUTH	= 0x00020000,
+	GR_ATSECURE	= 0x00040000,
+	GR_SHMEXEC	= 0x00080000
+};
+
+enum {
+	GR_PAX_ENABLE_SEGMEXEC	= 0x0001,
+	GR_PAX_ENABLE_PAGEEXEC	= 0x0002,
+	GR_PAX_ENABLE_MPROTECT	= 0x0004,
+	GR_PAX_ENABLE_RANDMMAP	= 0x0008,
+	GR_PAX_ENABLE_EMUTRAMP	= 0x0010,
+	GR_PAX_DISABLE_SEGMEXEC	= 0x0100,
+	GR_PAX_DISABLE_PAGEEXEC	= 0x0200,
+	GR_PAX_DISABLE_MPROTECT	= 0x0400,
+	GR_PAX_DISABLE_RANDMMAP	= 0x0800,
+	GR_PAX_DISABLE_EMUTRAMP	= 0x1000,
+};
+
+enum {
+	GR_ID_USER	= 0x01,
+	GR_ID_GROUP	= 0x02,
+};
+
+enum {
+	GR_ID_ALLOW	= 0x01,
+	GR_ID_DENY	= 0x02,
+};
+
+#define GR_CRASH_RES	31
+#define GR_UIDTABLE_MAX 500
+
+/* begin resource learning section */
+enum {
+	GR_RLIM_CPU_BUMP = 60,
+	GR_RLIM_FSIZE_BUMP = 50000,
+	GR_RLIM_DATA_BUMP = 10000,
+	GR_RLIM_STACK_BUMP = 1000,
+	GR_RLIM_CORE_BUMP = 10000,
+	GR_RLIM_RSS_BUMP = 500000,
+	GR_RLIM_NPROC_BUMP = 1,
+	GR_RLIM_NOFILE_BUMP = 5,
+	GR_RLIM_MEMLOCK_BUMP = 50000,
+	GR_RLIM_AS_BUMP = 500000,
+	GR_RLIM_LOCKS_BUMP = 2,
+	GR_RLIM_SIGPENDING_BUMP = 5,
+	GR_RLIM_MSGQUEUE_BUMP = 10000,
+	GR_RLIM_NICE_BUMP = 1,
+	GR_RLIM_RTPRIO_BUMP = 1,
+	GR_RLIM_RTTIME_BUMP = 1000000
+};
+
+#endif
diff --git a/include/linux/grinternal.h b/include/linux/grinternal.h
new file mode 100644
index 0000000..5402bce
--- /dev/null
+++ b/include/linux/grinternal.h
@@ -0,0 +1,215 @@
+#ifndef __GRINTERNAL_H
+#define __GRINTERNAL_H
+
+#ifdef CONFIG_GRKERNSEC
+
+#include <linux/fs.h>
+#include <linux/mnt_namespace.h>
+#include <linux/nsproxy.h>
+#include <linux/gracl.h>
+#include <linux/grdefs.h>
+#include <linux/grmsg.h>
+
+void gr_add_learn_entry(const char *fmt, ...)
+	__attribute__ ((format (printf, 1, 2)));
+__u32 gr_search_file(const struct dentry *dentry, const __u32 mode,
+			    const struct vfsmount *mnt);
+__u32 gr_check_create(const struct dentry *new_dentry,
+			     const struct dentry *parent,
+			     const struct vfsmount *mnt, const __u32 mode);
+int gr_check_protected_task(const struct task_struct *task);
+__u32 to_gr_audit(const __u32 reqmode);
+int gr_set_acls(const int type);
+int gr_apply_subject_to_task(struct task_struct *task);
+int gr_acl_is_enabled(void);
+char gr_roletype_to_char(void);
+
+void gr_handle_alertkill(struct task_struct *task);
+char *gr_to_filename(const struct dentry *dentry,
+			    const struct vfsmount *mnt);
+char *gr_to_filename1(const struct dentry *dentry,
+			    const struct vfsmount *mnt);
+char *gr_to_filename2(const struct dentry *dentry,
+			    const struct vfsmount *mnt);
+char *gr_to_filename3(const struct dentry *dentry,
+			    const struct vfsmount *mnt);
+
+extern int grsec_enable_ptrace_readexec;
+extern int grsec_enable_harden_ptrace;
+extern int grsec_enable_link;
+extern int grsec_enable_fifo;
+extern int grsec_enable_execve;
+extern int grsec_enable_shm;
+extern int grsec_enable_execlog;
+extern int grsec_enable_signal;
+extern int grsec_enable_audit_ptrace;
+extern int grsec_enable_forkfail;
+extern int grsec_enable_time;
+extern int grsec_enable_rofs;
+extern int grsec_enable_chroot_shmat;
+extern int grsec_enable_chroot_mount;
+extern int grsec_enable_chroot_double;
+extern int grsec_enable_chroot_pivot;
+extern int grsec_enable_chroot_chdir;
+extern int grsec_enable_chroot_chmod;
+extern int grsec_enable_chroot_mknod;
+extern int grsec_enable_chroot_fchdir;
+extern int grsec_enable_chroot_nice;
+extern int grsec_enable_chroot_execlog;
+extern int grsec_enable_chroot_caps;
+extern int grsec_enable_chroot_sysctl;
+extern int grsec_enable_chroot_unix;
+extern int grsec_enable_symlinkown;
+extern kgid_t grsec_symlinkown_gid;
+extern int grsec_enable_tpe;
+extern kgid_t grsec_tpe_gid;
+extern int grsec_enable_tpe_all;
+extern int grsec_enable_tpe_invert;
+extern int grsec_enable_socket_all;
+extern kgid_t grsec_socket_all_gid;
+extern int grsec_enable_socket_client;
+extern kgid_t grsec_socket_client_gid;
+extern int grsec_enable_socket_server;
+extern kgid_t grsec_socket_server_gid;
+extern kgid_t grsec_audit_gid;
+extern int grsec_enable_group;
+extern int grsec_enable_audit_textrel;
+extern int grsec_enable_log_rwxmaps;
+extern int grsec_enable_mount;
+extern int grsec_enable_chdir;
+extern int grsec_resource_logging;
+extern int grsec_enable_blackhole;
+extern int grsec_lastack_retries;
+extern int grsec_enable_brute;
+extern int grsec_lock;
+
+extern spinlock_t grsec_alert_lock;
+extern unsigned long grsec_alert_wtime;
+extern unsigned long grsec_alert_fyet;
+
+extern spinlock_t grsec_audit_lock;
+
+extern rwlock_t grsec_exec_file_lock;
+
+#define gr_task_fullpath(tsk) ((tsk)->exec_file ? \
+			gr_to_filename2((tsk)->exec_file->f_path.dentry, \
+			(tsk)->exec_file->f_path.mnt) : "/")
+
+#define gr_parent_task_fullpath(tsk) ((tsk)->real_parent->exec_file ? \
+			gr_to_filename3((tsk)->real_parent->exec_file->f_path.dentry, \
+			(tsk)->real_parent->exec_file->f_path.mnt) : "/")
+
+#define gr_task_fullpath0(tsk) ((tsk)->exec_file ? \
+			gr_to_filename((tsk)->exec_file->f_path.dentry, \
+			(tsk)->exec_file->f_path.mnt) : "/")
+
+#define gr_parent_task_fullpath0(tsk) ((tsk)->real_parent->exec_file ? \
+			gr_to_filename1((tsk)->real_parent->exec_file->f_path.dentry, \
+			(tsk)->real_parent->exec_file->f_path.mnt) : "/")
+
+#define proc_is_chrooted(tsk_a)  ((tsk_a)->gr_is_chrooted)
+
+#define have_same_root(tsk_a,tsk_b) ((tsk_a)->gr_chroot_dentry == (tsk_b)->gr_chroot_dentry)
+
+#define GR_CHROOT_CAPS {{ \
+	CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \
+	CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \
+	CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \
+	CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \
+	CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \
+	CAP_TO_MASK(CAP_IPC_OWNER) | CAP_TO_MASK(CAP_SETFCAP), \
+	CAP_TO_MASK(CAP_SYSLOG) | CAP_TO_MASK(CAP_MAC_ADMIN) }}
+
+#define security_learn(normal_msg,args...) \
+({ \
+	read_lock(&grsec_exec_file_lock); \
+	gr_add_learn_entry(normal_msg "\n", ## args); \
+	read_unlock(&grsec_exec_file_lock); \
+})
+
+enum {
+	GR_DO_AUDIT,
+	GR_DONT_AUDIT,
+	/* used for non-audit messages that we shouldn't kill the task on */
+	GR_DONT_AUDIT_GOOD
+};
+
+enum {
+	GR_TTYSNIFF,
+	GR_RBAC,
+	GR_RBAC_STR,
+	GR_STR_RBAC,
+	GR_RBAC_MODE2,
+	GR_RBAC_MODE3,
+	GR_FILENAME,
+	GR_SYSCTL_HIDDEN,
+	GR_NOARGS,
+	GR_ONE_INT,
+	GR_ONE_INT_TWO_STR,
+	GR_ONE_STR,
+	GR_STR_INT,
+	GR_TWO_STR_INT,
+	GR_TWO_INT,
+	GR_TWO_U64,
+	GR_THREE_INT,
+	GR_FIVE_INT_TWO_STR,
+	GR_TWO_STR,
+	GR_THREE_STR,
+	GR_FOUR_STR,
+	GR_STR_FILENAME,
+	GR_FILENAME_STR,
+	GR_FILENAME_TWO_INT,
+	GR_FILENAME_TWO_INT_STR,
+	GR_TEXTREL,
+	GR_PTRACE,
+	GR_RESOURCE,
+	GR_CAP,
+	GR_SIG,
+	GR_SIG2,
+	GR_CRASH1,
+	GR_CRASH2,
+	GR_PSACCT,
+	GR_RWXMAP
+};
+
+#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str)
+#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task)
+#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt)
+#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str)
+#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt)
+#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2)
+#define gr_log_fs_rbac_mode3(audit, msg, dentry, mnt, str1, str2, str3) gr_log_varargs(audit, msg, GR_RBAC_MODE3, dentry, mnt, str1, str2, str3)
+#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt)
+#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS)
+#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num)
+#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2)
+#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str)
+#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num)
+#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2)
+#define gr_log_two_u64(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_U64, num1, num2)
+#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3)
+#define gr_log_int5_str2(audit, msg, num1, num2, str1, str2) gr_log_varargs(audit, msg, GR_FIVE_INT_TWO_STR, num1, num2, str1, str2)
+#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2)
+#define gr_log_str2_int(audit, msg, str1, str2, num) gr_log_varargs(audit, msg, GR_TWO_STR_INT, str1, str2, num)
+#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3)
+#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4)
+#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt)
+#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str)
+#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2)
+#define gr_log_fs_int2_str(audit, msg, dentry, mnt, num1, num2, str) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT_STR, dentry, mnt, num1, num2, str)
+#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2)
+#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task)
+#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2)
+#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str)
+#define gr_log_sig_addr(audit, msg, str, addr) gr_log_varargs(audit, msg, GR_SIG, str, addr)
+#define gr_log_sig_task(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG2, task, num)
+#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong)
+#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1)
+#define gr_log_procacct(audit, msg, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) gr_log_varargs(audit, msg, GR_PSACCT, task, num1, num2, num3, num4, num5, num6, num7, num8, num9)
+#define gr_log_rwxmap(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAP, str)
+
+void gr_log_varargs(int audit, const char *msg, int argtypes, ...);
+
+#endif
+
+#endif
diff --git a/include/linux/grmsg.h b/include/linux/grmsg.h
new file mode 100644
index 0000000..2bd4c8d
--- /dev/null
+++ b/include/linux/grmsg.h
@@ -0,0 +1,111 @@
+#define DEFAULTSECMSG "%.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u, parent %.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u"
+#define GR_ACL_PROCACCT_MSG "%.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u run time:[%ud %uh %um %us] cpu time:[%ud %uh %um %us] %s with exit code %ld, parent %.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u"
+#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by "
+#define GR_STOPMOD_MSG "denied modification of module state by "
+#define GR_ROFS_BLOCKWRITE_MSG "denied write to block device %.950s by "
+#define GR_ROFS_MOUNT_MSG "denied writable mount of %.950s by "
+#define GR_IOPERM_MSG "denied use of ioperm() by "
+#define GR_IOPL_MSG "denied use of iopl() by "
+#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by "
+#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by "
+#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by "
+#define GR_MEM_READWRITE_MSG "denied access of range %Lx -> %Lx in /dev/mem by "
+#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by "
+#define GR_LEARN_AUDIT_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%lu\t%lu\t%.4095s\t%lu\t%pI4"
+#define GR_ID_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%c\t%d\t%d\t%d\t%pI4"
+#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by "
+#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by "
+#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by "
+#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by "
+#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by "
+#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by "
+#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by "
+#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%pI4 %.480s[%.16s:%d], parent %.480s[%.16s:%d] against "
+#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by "
+#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by "
+#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by "
+#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by "
+#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for "
+#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by "
+#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by "
+#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by "
+#define GR_UNSAFESHARE_EXEC_ACL_MSG "denied exec with cloned fs of %.950s by "
+#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by "
+#define GR_EXEC_ACL_MSG "%s execution of %.950s by "
+#define GR_EXEC_TPE_MSG "denied untrusted exec (due to %.70s) of %.950s by "
+#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds"
+#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds"
+#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by "
+#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by "
+#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by "
+#define GR_ATIME_ACL_MSG "%s access time change of %.950s by "
+#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by "
+#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by "
+#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by "
+#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by "
+#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by "
+#define GR_CHOWN_ACL_MSG "%s chown of %.950s by "
+#define GR_SETXATTR_ACL_MSG "%s setting extended attributes of %.950s by "
+#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by "
+#define GR_INITF_ACL_MSG "init_variables() failed %s by "
+#define GR_DISABLED_ACL_MSG "Error loading %s, trying to run kernel with acls disabled. To disable acls at startup use <kernel image name> gracl=off from your boot loader"
+#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbage by "
+#define GR_SHUTS_ACL_MSG "shutdown auth success for "
+#define GR_SHUTF_ACL_MSG "shutdown auth failure for "
+#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for "
+#define GR_SEGVMODS_ACL_MSG "segvmod auth success for "
+#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for "
+#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for "
+#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by "
+#define GR_ENABLEF_ACL_MSG "unable to load %s for "
+#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system"
+#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by "
+#define GR_RELOADF_ACL_MSG "failed reload of %s for "
+#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for "
+#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by "
+#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by "
+#define GR_SPROLEF_ACL_MSG "special role %s failure for "
+#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for "
+#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by "
+#define GR_INVMODE_ACL_MSG "invalid mode %d by "
+#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by "
+#define GR_FAILFORK_MSG "failed fork with errno %s by "
+#define GR_NICE_CHROOT_MSG "denied priority change by "
+#define GR_UNISIGLOG_MSG "%.32s occurred at %p in "
+#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by "
+#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by "
+#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by "
+#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by "
+#define GR_TIME_MSG "time set by "
+#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by "
+#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by "
+#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by "
+#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by "
+#define GR_SOCK_NOINET_MSG "denied socket(%.16s,%.16s,%d) by "
+#define GR_BIND_MSG "denied bind() by "
+#define GR_CONNECT_MSG "denied connect() by "
+#define GR_BIND_ACL_MSG "denied bind() to %pI4 port %u sock type %.16s protocol %.16s by "
+#define GR_CONNECT_ACL_MSG "denied connect() to %pI4 port %u sock type %.16s protocol %.16s by "
+#define GR_IP_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%pI4\t%u\t%u\t%u\t%u\t%pI4"
+#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process "
+#define GR_CAP_ACL_MSG "use of %s denied for "
+#define GR_CAP_CHROOT_MSG "use of %s in chroot denied for "
+#define GR_CAP_ACL_MSG2 "use of %s permitted for "
+#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for "
+#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for "
+#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by "
+#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by "
+#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by "
+#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by "
+#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by "
+#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for "
+#define GR_RWXMMAP_MSG "denied RWX mmap of %.950s by "
+#define GR_RWXMPROTECT_MSG "denied RWX mprotect of %.950s by "
+#define GR_TEXTREL_AUDIT_MSG "text relocation in %s, VMA:0x%08lx 0x%08lx by "
+#define GR_VM86_MSG "denied use of vm86 by "
+#define GR_PTRACE_AUDIT_MSG "process %.950s(%.16s:%d) attached to via ptrace by "
+#define GR_PTRACE_READEXEC_MSG "denied ptrace of unreadable binary %.950s by "
+#define GR_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by "
+#define GR_BADPROCPID_MSG "denied read of sensitive /proc/pid/%s entry via fd passed across exec by "
+#define GR_SYMLINKOWNER_MSG "denied following symlink %.950s since symlink owner %u does not match target owner %u, by "
+#define GR_BRUTE_DAEMON_MSG "bruteforce prevention initiated for the next 30 minutes or until service restarted, stalling each fork 30 seconds.  Please investigate the crash report for "
diff --git a/include/linux/grsecurity.h b/include/linux/grsecurity.h
new file mode 100644
index 0000000..d7ef0ac
--- /dev/null
+++ b/include/linux/grsecurity.h
@@ -0,0 +1,242 @@
+#ifndef GR_SECURITY_H
+#define GR_SECURITY_H
+#include <linux/fs.h>
+#include <linux/fs_struct.h>
+#include <linux/binfmts.h>
+#include <linux/gracl.h>
+
+/* notify of brain-dead configs */
+#if defined(CONFIG_GRKERNSEC_PROC_USER) && defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+#error "CONFIG_GRKERNSEC_PROC_USER and CONFIG_GRKERNSEC_PROC_USERGROUP cannot both be enabled."
+#endif
+#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC)
+#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled."
+#endif
+#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP)
+#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled."
+#endif
+#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR)
+#error "CONFIG_PAX enabled, but no PaX options are enabled."
+#endif
+
+void gr_handle_brute_attach(unsigned long mm_flags);
+void gr_handle_brute_check(void);
+void gr_handle_kernel_exploit(void);
+int gr_process_user_ban(void);
+
+char gr_roletype_to_char(void);
+
+int gr_acl_enable_at_secure(void);
+
+int gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs);
+int gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs);
+
+void gr_del_task_from_ip_table(struct task_struct *p);
+
+int gr_pid_is_chrooted(struct task_struct *p);
+int gr_handle_chroot_fowner(struct pid *pid, enum pid_type type);
+int gr_handle_chroot_nice(void);
+int gr_handle_chroot_sysctl(const int op);
+int gr_handle_chroot_setpriority(struct task_struct *p,
+					const int niceval);
+int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt);
+int gr_handle_chroot_chroot(const struct dentry *dentry,
+				   const struct vfsmount *mnt);
+void gr_handle_chroot_chdir(const struct path *path);
+int gr_handle_chroot_chmod(const struct dentry *dentry,
+				  const struct vfsmount *mnt, const int mode);
+int gr_handle_chroot_mknod(const struct dentry *dentry,
+				  const struct vfsmount *mnt, const int mode);
+int gr_handle_chroot_mount(const struct dentry *dentry,
+				  const struct vfsmount *mnt,
+				  const char *dev_name);
+int gr_handle_chroot_pivot(void);
+int gr_handle_chroot_unix(const pid_t pid);
+
+int gr_handle_rawio(const struct inode *inode);
+
+void gr_handle_ioperm(void);
+void gr_handle_iopl(void);
+
+umode_t gr_acl_umask(void);
+
+int gr_tpe_allow(const struct file *file);
+
+void gr_set_chroot_entries(struct task_struct *task, const struct path *path);
+void gr_clear_chroot_entries(struct task_struct *task);
+
+void gr_log_forkfail(const int retval);
+void gr_log_timechange(void);
+void gr_log_signal(const int sig, const void *addr, const struct task_struct *t);
+void gr_log_chdir(const struct dentry *dentry,
+			 const struct vfsmount *mnt);
+void gr_log_chroot_exec(const struct dentry *dentry,
+			       const struct vfsmount *mnt);
+void gr_log_remount(const char *devname, const int retval);
+void gr_log_unmount(const char *devname, const int retval);
+void gr_log_mount(const char *from, const char *to, const int retval);
+void gr_log_textrel(struct vm_area_struct *vma);
+void gr_log_rwxmmap(struct file *file);
+void gr_log_rwxmprotect(struct file *file);
+
+int gr_handle_follow_link(const struct inode *parent,
+				 const struct inode *inode,
+				 const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+int gr_handle_fifo(const struct dentry *dentry,
+			  const struct vfsmount *mnt,
+			  const struct dentry *dir, const int flag,
+			  const int acc_mode);
+int gr_handle_hardlink(const struct dentry *dentry,
+			      const struct vfsmount *mnt,
+			      struct inode *inode,
+			      const int mode, const struct filename *to);
+
+int gr_is_capable(const int cap);
+int gr_is_capable_nolog(const int cap);
+int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
+int gr_task_is_capable_nolog(const struct task_struct *task, const int cap);
+
+void gr_copy_label(struct task_struct *tsk);
+void gr_handle_crash(struct task_struct *task, const int sig);
+int gr_handle_signal(const struct task_struct *p, const int sig);
+int gr_check_crash_uid(const kuid_t uid);
+int gr_check_protected_task(const struct task_struct *task);
+int gr_check_protected_task_fowner(struct pid *pid, enum pid_type type);
+int gr_acl_handle_mmap(const struct file *file,
+			      const unsigned long prot);
+int gr_acl_handle_mprotect(const struct file *file,
+				  const unsigned long prot);
+int gr_check_hidden_task(const struct task_struct *tsk);
+__u32 gr_acl_handle_truncate(const struct dentry *dentry,
+				    const struct vfsmount *mnt);
+__u32 gr_acl_handle_utime(const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+__u32 gr_acl_handle_access(const struct dentry *dentry,
+				  const struct vfsmount *mnt, const int fmode);
+__u32 gr_acl_handle_chmod(const struct dentry *dentry,
+				 const struct vfsmount *mnt, umode_t *mode);
+__u32 gr_acl_handle_chown(const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+__u32 gr_acl_handle_setxattr(const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+int gr_handle_ptrace(struct task_struct *task, const long request);
+int gr_handle_proc_ptrace(struct task_struct *task);
+__u32 gr_acl_handle_execve(const struct dentry *dentry,
+				  const struct vfsmount *mnt);
+int gr_check_crash_exec(const struct file *filp);
+int gr_acl_is_enabled(void);
+void gr_set_kernel_label(struct task_struct *task);
+void gr_set_role_label(struct task_struct *task, const kuid_t uid,
+			      const kgid_t gid);
+int gr_set_proc_label(const struct dentry *dentry,
+			const struct vfsmount *mnt,
+			const int unsafe_flags);
+__u32 gr_acl_handle_hidden_file(const struct dentry *dentry,
+				const struct vfsmount *mnt);
+__u32 gr_acl_handle_open(const struct dentry *dentry,
+				const struct vfsmount *mnt, int acc_mode);
+__u32 gr_acl_handle_creat(const struct dentry *dentry,
+				 const struct dentry *p_dentry,
+				 const struct vfsmount *p_mnt,
+				 int open_flags, int acc_mode, const int imode);
+void gr_handle_create(const struct dentry *dentry,
+			     const struct vfsmount *mnt);
+void gr_handle_proc_create(const struct dentry *dentry,
+			   const struct inode *inode);
+__u32 gr_acl_handle_mknod(const struct dentry *new_dentry,
+				 const struct dentry *parent_dentry,
+				 const struct vfsmount *parent_mnt,
+				 const int mode);
+__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry,
+				 const struct dentry *parent_dentry,
+				 const struct vfsmount *parent_mnt);
+__u32 gr_acl_handle_rmdir(const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+void gr_handle_delete(const ino_t ino, const dev_t dev);
+__u32 gr_acl_handle_unlink(const struct dentry *dentry,
+				  const struct vfsmount *mnt);
+__u32 gr_acl_handle_symlink(const struct dentry *new_dentry,
+				   const struct dentry *parent_dentry,
+				   const struct vfsmount *parent_mnt,
+				   const struct filename *from);
+__u32 gr_acl_handle_link(const struct dentry *new_dentry,
+				const struct dentry *parent_dentry,
+				const struct vfsmount *parent_mnt,
+				const struct dentry *old_dentry,
+				const struct vfsmount *old_mnt, const struct filename *to);
+int gr_handle_symlink_owner(const struct path *link, const struct inode *target);
+int gr_acl_handle_rename(struct dentry *new_dentry,
+				struct dentry *parent_dentry,
+				const struct vfsmount *parent_mnt,
+				struct dentry *old_dentry,
+				struct inode *old_parent_inode,
+				struct vfsmount *old_mnt, const struct filename *newname);
+void gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
+				struct dentry *old_dentry,
+				struct dentry *new_dentry,
+				struct vfsmount *mnt, const __u8 replace);
+__u32 gr_check_link(const struct dentry *new_dentry,
+			   const struct dentry *parent_dentry,
+			   const struct vfsmount *parent_mnt,
+			   const struct dentry *old_dentry,
+			   const struct vfsmount *old_mnt);
+int gr_acl_handle_filldir(const struct file *file, const char *name,
+				 const unsigned int namelen, const ino_t ino);
+
+__u32 gr_acl_handle_unix(const struct dentry *dentry,
+				const struct vfsmount *mnt);
+void gr_acl_handle_exit(void);
+void gr_acl_handle_psacct(struct task_struct *task, const long code);
+int gr_acl_handle_procpidmem(const struct task_struct *task);
+int gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags);
+int gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode);
+void gr_audit_ptrace(struct task_struct *task);
+dev_t gr_get_dev_from_dentry(struct dentry *dentry);
+void gr_put_exec_file(struct task_struct *task);
+
+int gr_ptrace_readexec(struct file *file, int unsafe_flags);
+
+#if defined(CONFIG_GRKERNSEC) && (defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC))
+extern void gr_learn_resource(const struct task_struct *task, const int res,
+			      const unsigned long wanted, const int gt);
+#else
+static inline void gr_learn_resource(const struct task_struct *task, const int res,
+				     const unsigned long wanted, const int gt)
+{
+}
+#endif
+
+#ifdef CONFIG_GRKERNSEC_RESLOG
+extern void gr_log_resource(const struct task_struct *task, const int res,
+				   const unsigned long wanted, const int gt);
+#else
+static inline void gr_log_resource(const struct task_struct *task, const int res,
+				   const unsigned long wanted, const int gt)
+{
+}
+#endif
+
+#ifdef CONFIG_GRKERNSEC
+void task_grsec_rbac(struct seq_file *m, struct task_struct *p);
+void gr_handle_vm86(void);
+void gr_handle_mem_readwrite(u64 from, u64 to);
+
+void gr_log_badprocpid(const char *entry);
+
+extern int grsec_enable_dmesg;
+extern int grsec_disable_privio;
+
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+extern kgid_t grsec_proc_gid;
+#endif
+
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+extern int grsec_enable_chroot_findtask;
+#endif
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern int grsec_enable_setxid;
+#endif
+#endif
+
+#endif
diff --git a/include/linux/grsock.h b/include/linux/grsock.h
new file mode 100644
index 0000000..e7ffaaf
--- /dev/null
+++ b/include/linux/grsock.h
@@ -0,0 +1,19 @@
+#ifndef __GRSOCK_H
+#define __GRSOCK_H
+
+extern void gr_attach_curr_ip(const struct sock *sk);
+extern int gr_handle_sock_all(const int family, const int type,
+			      const int protocol);
+extern int gr_handle_sock_server(const struct sockaddr *sck);
+extern int gr_handle_sock_server_other(const struct sock *sck);
+extern int gr_handle_sock_client(const struct sockaddr *sck);
+extern int gr_search_connect(struct socket * sock,
+			     struct sockaddr_in * addr);
+extern int gr_search_bind(struct socket * sock,
+			  struct sockaddr_in * addr);
+extern int gr_search_listen(struct socket * sock);
+extern int gr_search_accept(struct socket * sock);
+extern int gr_search_socket(const int domain, const int type,
+			    const int protocol);
+
+#endif
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 7fb31da..08b5114 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -189,6 +189,18 @@ static inline void clear_highpage(struct page *page)
 	kunmap_atomic(kaddr);
 }
 
+static inline void sanitize_highpage(struct page *page)
+{
+	void *kaddr;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	kaddr = kmap_atomic(page);
+	clear_page(kaddr);
+	kunmap_atomic(kaddr);
+	local_irq_restore(flags);
+}
+
 static inline void zero_user_segments(struct page *page,
 	unsigned start1, unsigned end1,
 	unsigned start2, unsigned end2)
diff --git a/include/linux/hwmon-sysfs.h b/include/linux/hwmon-sysfs.h
index 1c7b89a..7f52502 100644
--- a/include/linux/hwmon-sysfs.h
+++ b/include/linux/hwmon-sysfs.h
@@ -25,7 +25,8 @@
 struct sensor_device_attribute{
 	struct device_attribute dev_attr;
 	int index;
-};
+} __do_const;
+typedef struct sensor_device_attribute __no_const sensor_device_attribute_no_const;
 #define to_sensor_dev_attr(_dev_attr) \
 	container_of(_dev_attr, struct sensor_device_attribute, dev_attr)
 
@@ -41,7 +42,7 @@ struct sensor_device_attribute_2 {
 	struct device_attribute dev_attr;
 	u8 index;
 	u8 nr;
-};
+} __do_const;
 #define to_sensor_dev_attr_2(_dev_attr) \
 	container_of(_dev_attr, struct sensor_device_attribute_2, dev_attr)
 
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index d0c4db7..61b3577 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -369,6 +369,7 @@ struct i2c_algorithm {
 	/* To determine what the adapter supports */
 	u32 (*functionality) (struct i2c_adapter *);
 };
+typedef struct i2c_algorithm __no_const i2c_algorithm_no_const;
 
 /*
  * i2c_adapter is the structure used to identify a physical i2c bus along
diff --git a/include/linux/i2o.h b/include/linux/i2o.h
index d23c3c2..eb63c81 100644
--- a/include/linux/i2o.h
+++ b/include/linux/i2o.h
@@ -565,7 +565,7 @@ struct i2o_controller {
 	struct i2o_device *exec;	/* Executive */
 #if BITS_PER_LONG == 64
 	spinlock_t context_list_lock;	/* lock for context_list */
-	atomic_t context_list_counter;	/* needed for unique contexts */
+	atomic_unchecked_t context_list_counter;	/* needed for unique contexts */
 	struct list_head context_list;	/* list of context id's
 					   and pointers */
 #endif
diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
index aff7ad8..3942bbd 100644
--- a/include/linux/if_pppox.h
+++ b/include/linux/if_pppox.h
@@ -76,7 +76,7 @@ struct pppox_proto {
 	int		(*ioctl)(struct socket *sock, unsigned int cmd,
 				 unsigned long arg);
 	struct module	*owner;
-};
+} __do_const;
 
 extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp);
 extern void unregister_pppox_proto(int proto_num);
diff --git a/include/linux/init.h b/include/linux/init.h
index 8618147..0821126 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -39,9 +39,36 @@
  * Also note, that this data cannot be "const".
  */
 
+#ifdef MODULE
+#define add_init_latent_entropy
+#define add_devinit_latent_entropy
+#define add_cpuinit_latent_entropy
+#define add_meminit_latent_entropy
+#else
+#define add_init_latent_entropy __latent_entropy
+
+#ifdef CONFIG_HOTPLUG
+#define add_devinit_latent_entropy
+#else
+#define add_devinit_latent_entropy __latent_entropy
+#endif
+
+#ifdef CONFIG_HOTPLUG_CPU
+#define add_cpuinit_latent_entropy
+#else
+#define add_cpuinit_latent_entropy __latent_entropy
+#endif
+
+#ifdef CONFIG_MEMORY_HOTPLUG
+#define add_meminit_latent_entropy
+#else
+#define add_meminit_latent_entropy __latent_entropy
+#endif
+#endif
+
 /* These are for everybody (although not all archs will actually
    discard it in modules) */
-#define __init		__section(.init.text) __cold notrace
+#define __init		__section(.init.text) __cold notrace add_init_latent_entropy
 #define __initdata	__section(.init.data)
 #define __initconst	__constsection(.init.rodata)
 #define __exitdata	__section(.exit.data)
@@ -94,7 +121,7 @@
 #define __exit          __section(.exit.text) __exitused __cold notrace
 
 /* Used for HOTPLUG_CPU */
-#define __cpuinit        __section(.cpuinit.text) __cold notrace
+#define __cpuinit        __section(.cpuinit.text) __cold notrace add_cpuinit_latent_entropy
 #define __cpuinitdata    __section(.cpuinit.data)
 #define __cpuinitconst   __constsection(.cpuinit.rodata)
 #define __cpuexit        __section(.cpuexit.text) __exitused __cold notrace
@@ -102,7 +129,7 @@
 #define __cpuexitconst   __constsection(.cpuexit.rodata)
 
 /* Used for MEMORY_HOTPLUG */
-#define __meminit        __section(.meminit.text) __cold notrace
+#define __meminit        __section(.meminit.text) __cold notrace add_meminit_latent_entropy
 #define __meminitdata    __section(.meminit.data)
 #define __meminitconst   __constsection(.meminit.rodata)
 #define __memexit        __section(.memexit.text) __exitused __cold notrace
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 5cd0f09..c9f67cc 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -154,6 +154,12 @@ extern struct task_group root_task_group;
 
 #define INIT_TASK_COMM "swapper"
 
+#ifdef CONFIG_X86
+#define INIT_TASK_THREAD_INFO .tinfo = INIT_THREAD_INFO,
+#else
+#define INIT_TASK_THREAD_INFO
+#endif
+
 /*
  *  INIT_TASK is used to set up the first task table, touch at
  * your own risk!. Base=0, limit=0x1fffff (=2MB)
@@ -193,6 +199,7 @@ extern struct task_group root_task_group;
 	RCU_POINTER_INITIALIZER(cred, &init_cred),			\
 	.comm		= INIT_TASK_COMM,				\
 	.thread		= INIT_THREAD,					\
+	INIT_TASK_THREAD_INFO						\
 	.fs		= &init_fs,					\
 	.files		= &init_files,					\
 	.signal		= &init_signals,				\
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 5fa5afe..ac55b25 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -430,7 +430,7 @@ enum
 /* map softirq index to softirq name. update 'softirq_to_name' in
  * kernel/softirq.c when adding a new softirq.
  */
-extern char *softirq_to_name[NR_SOFTIRQS];
+extern const char * const softirq_to_name[NR_SOFTIRQS];
 
 /* softirq mask and active fields moved to irq_cpustat_t in
  * asm/hardirq.h to get better cache usage.  KAO
@@ -438,12 +438,12 @@ extern char *softirq_to_name[NR_SOFTIRQS];
 
 struct softirq_action
 {
-	void	(*action)(struct softirq_action *);
-};
+	void	(*action)(void);
+} __no_const;
 
 asmlinkage void do_softirq(void);
 asmlinkage void __do_softirq(void);
-extern void open_softirq(int nr, void (*action)(struct softirq_action *));
+extern void open_softirq(int nr, void (*action)(void));
 extern void softirq_init(void);
 extern void __raise_softirq_irqoff(unsigned int nr);
 
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index ba3b8a9..7e14ed8 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -113,7 +113,7 @@ struct iommu_ops {
 	u32 (*domain_get_windows)(struct iommu_domain *domain);
 
 	unsigned long pgsize_bitmap;
-};
+} __do_const;
 
 #define IOMMU_GROUP_NOTIFY_ADD_DEVICE		1 /* Device added */
 #define IOMMU_GROUP_NOTIFY_DEL_DEVICE		2 /* Pre Device removed */
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 85ac9b9b..e5759ab 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -161,7 +161,7 @@ struct resource *lookup_resource(struct resource *root, resource_size_t start);
 int adjust_resource(struct resource *res, resource_size_t start,
 		    resource_size_t size);
 resource_size_t resource_alignment(struct resource *res);
-static inline resource_size_t resource_size(const struct resource *res)
+static inline resource_size_t __intentional_overflow(-1) resource_size(const struct resource *res)
 {
 	return res->end - res->start + 1;
 }
diff --git a/include/linux/irq.h b/include/linux/irq.h
index bc4e066..50468a9 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -328,7 +328,8 @@ struct irq_chip {
 	void		(*irq_print_chip)(struct irq_data *data, struct seq_file *p);
 
 	unsigned long	flags;
-};
+} __do_const;
+typedef struct irq_chip __no_const irq_chip_no_const;
 
 /*
  * irq_chip specific flags
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 3fd8e42..a73e966 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -59,9 +59,11 @@
 
 #ifndef __ASSEMBLY__
 
+#include <linux/irq.h>
+
 struct device_node;
 
-extern struct irq_chip gic_arch_extn;
+extern irq_chip_no_const gic_arch_extn;
 
 void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
 		    u32 offset, struct device_node *);
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 6883e19..06992b1 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -15,7 +15,8 @@
 
 struct module;
 
-#ifdef CONFIG_KALLSYMS
+#if !defined(__INCLUDED_BY_HIDESYM) || !defined(CONFIG_KALLSYMS)
+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 /* Lookup the address for a symbol. Returns 0 if not found. */
 unsigned long kallsyms_lookup_name(const char *name);
 
@@ -106,6 +107,17 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u
 /* Stupid that this does nothing, but I didn't create this mess. */
 #define __print_symbol(fmt, addr)
 #endif /*CONFIG_KALLSYMS*/
+#else /* when included by kallsyms.c, vsnprintf.c, or
+	arch/x86/kernel/dumpstack.c, with HIDESYM enabled */
+extern void __print_symbol(const char *fmt, unsigned long address);
+extern int sprint_backtrace(char *buffer, unsigned long address);
+extern int sprint_symbol(char *buffer, unsigned long address);
+extern int sprint_symbol_no_offset(char *buffer, unsigned long address);
+const char *kallsyms_lookup(unsigned long addr,
+			    unsigned long *symbolsize,
+			    unsigned long *offset,
+			    char **modname, char *namebuf);
+#endif
 
 /* This macro allows us to keep printk typechecking */
 static __printf(1, 2)
diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index 518a53a..5e28358 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -125,7 +125,7 @@ struct key_type {
 	/* internal fields */
 	struct list_head	link;		/* link in types list */
 	struct lock_class_key	lock_class;	/* key->sem lock class */
-};
+} __do_const;
 
 extern struct key_type key_type_keyring;
 
diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
index c6e091b..a940adf 100644
--- a/include/linux/kgdb.h
+++ b/include/linux/kgdb.h
@@ -52,7 +52,7 @@ extern int kgdb_connected;
 extern int kgdb_io_module_registered;
 
 extern atomic_t			kgdb_setting_breakpoint;
-extern atomic_t			kgdb_cpu_doing_single_step;
+extern atomic_unchecked_t	kgdb_cpu_doing_single_step;
 
 extern struct task_struct	*kgdb_usethread;
 extern struct task_struct	*kgdb_contthread;
@@ -254,7 +254,7 @@ struct kgdb_arch {
 	void	(*correct_hw_break)(void);
 
 	void	(*enable_nmi)(bool on);
-};
+} __do_const;
 
 /**
  * struct kgdb_io - Describe the interface for an I/O driver to talk with KGDB.
@@ -279,7 +279,7 @@ struct kgdb_io {
 	void			(*pre_exception) (void);
 	void			(*post_exception) (void);
 	int			is_console;
-};
+} __do_const;
 
 extern struct kgdb_arch		arch_kgdb_ops;
 
diff --git a/include/linux/kmod.h b/include/linux/kmod.h
index 5398d58..5883a34 100644
--- a/include/linux/kmod.h
+++ b/include/linux/kmod.h
@@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysctl */
  * usually useless though. */
 extern __printf(2, 3)
 int __request_module(bool wait, const char *name, ...);
+extern __printf(3, 4)
+int ___request_module(bool wait, char *param_name, const char *name, ...);
 #define request_module(mod...) __request_module(true, mod)
 #define request_module_nowait(mod...) __request_module(false, mod)
 #define try_then_request_module(x, mod...) \
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 939b112..ed6ed51 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -111,7 +111,7 @@ struct kobj_type {
 	struct attribute **default_attrs;
 	const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj);
 	const void *(*namespace)(struct kobject *kobj);
-};
+} __do_const;
 
 struct kobj_uevent_env {
 	char *envp[UEVENT_NUM_ENVP];
@@ -134,6 +134,7 @@ struct kobj_attribute {
 	ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
 			 const char *buf, size_t count);
 };
+typedef struct kobj_attribute __no_const kobj_attribute_no_const;
 
 extern const struct sysfs_ops kobj_sysfs_ops;
 
diff --git a/include/linux/kobject_ns.h b/include/linux/kobject_ns.h
index f66b065..c2c29b4 100644
--- a/include/linux/kobject_ns.h
+++ b/include/linux/kobject_ns.h
@@ -43,7 +43,7 @@ struct kobj_ns_type_operations {
 	const void *(*netlink_ns)(struct sock *sk);
 	const void *(*initial_ns)(void);
 	void (*drop_ns)(void *);
-};
+} __do_const;
 
 int kobj_ns_type_register(const struct kobj_ns_type_operations *ops);
 int kobj_ns_type_registered(enum kobj_ns_type type);
diff --git a/include/linux/kref.h b/include/linux/kref.h
index 7419c02..aa2f02d 100644
--- a/include/linux/kref.h
+++ b/include/linux/kref.h
@@ -65,7 +65,7 @@ static inline void kref_get(struct kref *kref)
 static inline int kref_sub(struct kref *kref, unsigned int count,
 	     void (*release)(struct kref *kref))
 {
-	WARN_ON(release == NULL);
+	BUG_ON(release == NULL);
 
 	if (atomic_sub_and_test((int) count, &kref->refcount)) {
 		release(kref);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index c139582..0b5b102 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -424,7 +424,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
 int __must_check vcpu_load(struct kvm_vcpu *vcpu);
 void vcpu_put(struct kvm_vcpu *vcpu);
 
-int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
+int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 		  struct module *module);
 void kvm_exit(void);
 
@@ -582,7 +582,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 					struct kvm_guest_debug *dbg);
 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
 
-int kvm_arch_init(void *opaque);
+int kvm_arch_init(const void *opaque);
 void kvm_arch_exit(void);
 
 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
diff --git a/include/linux/libata.h b/include/linux/libata.h
index eae7a05..2cdd875 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -919,7 +919,7 @@ struct ata_port_operations {
 	 * fields must be pointers.
 	 */
 	const struct ata_port_operations	*inherits;
-};
+} __do_const;
 
 struct ata_port_info {
 	unsigned long		flags;
diff --git a/include/linux/list.h b/include/linux/list.h
index 6a1f8df..eaec1ff 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -112,6 +112,19 @@ extern void __list_del_entry(struct list_head *entry);
 extern void list_del(struct list_head *entry);
 #endif
 
+extern void __pax_list_add(struct list_head *new,
+			      struct list_head *prev,
+			      struct list_head *next);
+static inline void pax_list_add(struct list_head *new, struct list_head *head)
+{
+	__pax_list_add(new, head, head->next);
+}
+static inline void pax_list_add_tail(struct list_head *new, struct list_head *head)
+{
+	__pax_list_add(new, head->prev, head);
+}
+extern void pax_list_del(struct list_head *entry);
+
 /**
  * list_replace - replace old entry by new one
  * @old : the element to be replaced
@@ -145,6 +158,8 @@ static inline void list_del_init(struct list_head *entry)
 	INIT_LIST_HEAD(entry);
 }
 
+extern void pax_list_del_init(struct list_head *entry);
+
 /**
  * list_move - delete from one list and add as another's head
  * @list: the entry to move
diff --git a/include/linux/math64.h b/include/linux/math64.h
index b8ba855..0148090 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -14,7 +14,7 @@
  * This is commonly provided by 32bit archs to provide an optimized 64bit
  * divide.
  */
-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
 {
 	*remainder = dividend % divisor;
 	return dividend / divisor;
@@ -50,7 +50,7 @@ static inline s64 div64_s64(s64 dividend, s64 divisor)
 #define div64_long(x,y) div_s64((x),(y))
 
 #ifndef div_u64_rem
-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
 {
 	*remainder = do_div(dividend, divisor);
 	return dividend;
@@ -79,7 +79,7 @@ extern s64 div64_s64(s64 dividend, s64 divisor);
  * divide.
  */
 #ifndef div_u64
-static inline u64 div_u64(u64 dividend, u32 divisor)
+static inline u64 __intentional_overflow(-1) div_u64(u64 dividend, u32 divisor)
 {
 	u32 remainder;
 	return div_u64_rem(dividend, divisor, &remainder);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index e2091b8..821db54 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -101,6 +101,11 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_HUGETLB	0x00400000	/* Huge TLB Page VM */
 #define VM_NONLINEAR	0x00800000	/* Is non-linear (remap_file_pages) */
 #define VM_ARCH_1	0x01000000	/* Architecture-specific flag */
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
+#define VM_PAGEEXEC	0x02000000	/* vma->vm_page_prot needs special handling */
+#endif
+
 #define VM_DONTDUMP	0x04000000	/* Do not include in the core dump */
 
 #define VM_MIXEDMAP	0x10000000	/* Can contain "struct page" and pure PFN pages */
@@ -202,8 +207,8 @@ struct vm_operations_struct {
 	/* called by access_process_vm when get_user_pages() fails, typically
 	 * for use by special VMAs that can switch between memory and hardware
 	 */
-	int (*access)(struct vm_area_struct *vma, unsigned long addr,
-		      void *buf, int len, int write);
+	ssize_t (*access)(struct vm_area_struct *vma, unsigned long addr,
+		      void *buf, size_t len, int write);
 #ifdef CONFIG_NUMA
 	/*
 	 * set_policy() op must add a reference to any non-NULL @new mempolicy
@@ -233,6 +238,7 @@ struct vm_operations_struct {
 	int (*remap_pages)(struct vm_area_struct *vma, unsigned long addr,
 			   unsigned long size, pgoff_t pgoff);
 };
+typedef struct vm_operations_struct __no_const vm_operations_struct_no_const;
 
 struct mmu_gather;
 struct inode;
@@ -970,8 +976,8 @@ int follow_pfn(struct vm_area_struct *vma, unsigned long address,
 	unsigned long *pfn);
 int follow_phys(struct vm_area_struct *vma, unsigned long address,
 		unsigned int flags, unsigned long *prot, resource_size_t *phys);
-int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
-			void *buf, int len, int write);
+ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
+			void *buf, size_t len, int write);
 
 static inline void unmap_shared_mapping_range(struct address_space *mapping,
 		loff_t const holebegin, loff_t const holelen)
@@ -1010,9 +1016,9 @@ static inline int fixup_user_fault(struct task_struct *tsk,
 }
 #endif
 
-extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
-extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
-		void *buf, int len, int write);
+extern ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write);
+extern ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
+		void *buf, size_t len, int write);
 
 long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 		      unsigned long start, unsigned long nr_pages,
@@ -1043,34 +1049,6 @@ int set_page_dirty(struct page *page);
 int set_page_dirty_lock(struct page *page);
 int clear_page_dirty_for_io(struct page *page);
 
-/* Is the vma a continuation of the stack vma above it? */
-static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
-{
-	return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
-}
-
-static inline int stack_guard_page_start(struct vm_area_struct *vma,
-					     unsigned long addr)
-{
-	return (vma->vm_flags & VM_GROWSDOWN) &&
-		(vma->vm_start == addr) &&
-		!vma_growsdown(vma->vm_prev, addr);
-}
-
-/* Is the vma a continuation of the stack vma below it? */
-static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr)
-{
-	return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
-}
-
-static inline int stack_guard_page_end(struct vm_area_struct *vma,
-					   unsigned long addr)
-{
-	return (vma->vm_flags & VM_GROWSUP) &&
-		(vma->vm_end == addr) &&
-		!vma_growsup(vma->vm_next, addr);
-}
-
 extern pid_t
 vm_is_stack(struct task_struct *task, struct vm_area_struct *vma, int in_group);
 
@@ -1173,6 +1151,15 @@ static inline void sync_mm_rss(struct mm_struct *mm)
 }
 #endif
 
+#ifdef CONFIG_MMU
+pgprot_t vm_get_page_prot(vm_flags_t vm_flags);
+#else
+static inline pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
+{
+	return __pgprot(0);
+}
+#endif
+
 int vma_wants_writenotify(struct vm_area_struct *vma);
 
 extern pte_t *__get_locked_pte(struct mm_struct *mm, unsigned long addr,
@@ -1191,8 +1178,15 @@ static inline int __pud_alloc(struct mm_struct *mm, pgd_t *pgd,
 {
 	return 0;
 }
+
+static inline int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd,
+						unsigned long address)
+{
+	return 0;
+}
 #else
 int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
+int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
 #endif
 
 #ifdef __PAGETABLE_PMD_FOLDED
@@ -1201,8 +1195,15 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud,
 {
 	return 0;
 }
+
+static inline int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud,
+						unsigned long address)
+{
+	return 0;
+}
 #else
 int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address);
+int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address);
 #endif
 
 int __pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma,
@@ -1220,11 +1221,23 @@ static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long a
 		NULL: pud_offset(pgd, address);
 }
 
+static inline pud_t *pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
+{
+	return (unlikely(pgd_none(*pgd)) && __pud_alloc_kernel(mm, pgd, address))?
+		NULL: pud_offset(pgd, address);
+}
+
 static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
 {
 	return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
 		NULL: pmd_offset(pud, address);
 }
+
+static inline pmd_t *pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
+{
+	return (unlikely(pud_none(*pud)) && __pmd_alloc_kernel(mm, pud, address))?
+		NULL: pmd_offset(pud, address);
+}
 #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
 
 #if USE_SPLIT_PTLOCKS
@@ -1455,6 +1468,7 @@ extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	unsigned long len, unsigned long prot, unsigned long flags,
 	unsigned long pgoff, unsigned long *populate);
 extern int do_munmap(struct mm_struct *, unsigned long, size_t);
+extern int __do_munmap(struct mm_struct *, unsigned long, size_t);
 
 #ifdef CONFIG_MMU
 extern int __mm_populate(unsigned long addr, unsigned long len,
@@ -1483,6 +1497,7 @@ struct vm_unmapped_area_info {
 	unsigned long high_limit;
 	unsigned long align_mask;
 	unsigned long align_offset;
+	unsigned long threadstack_offset;
 };
 
 extern unsigned long unmapped_area(struct vm_unmapped_area_info *info);
@@ -1561,6 +1576,10 @@ extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long add
 extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr,
 					     struct vm_area_struct **pprev);
 
+extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma);
+extern __must_check long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma);
+extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl);
+
 /* Look up the first VMA which intersects the interval start_addr..end_addr-1,
    NULL if none.  Assume start_addr < end_addr. */
 static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr)
@@ -1589,15 +1608,6 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm,
 	return vma;
 }
 
-#ifdef CONFIG_MMU
-pgprot_t vm_get_page_prot(unsigned long vm_flags);
-#else
-static inline pgprot_t vm_get_page_prot(unsigned long vm_flags)
-{
-	return __pgprot(0);
-}
-#endif
-
 #ifdef CONFIG_ARCH_USES_NUMA_PROT_NONE
 unsigned long change_prot_numa(struct vm_area_struct *vma,
 			unsigned long start, unsigned long end);
@@ -1649,6 +1659,11 @@ void vm_stat_account(struct mm_struct *, unsigned long, struct file *, long);
 static inline void vm_stat_account(struct mm_struct *mm,
 			unsigned long flags, struct file *file, long pages)
 {
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
+#endif
+
 	mm->total_vm += pages;
 }
 #endif /* CONFIG_PROC_FS */
@@ -1725,7 +1740,7 @@ extern int unpoison_memory(unsigned long pfn);
 extern int sysctl_memory_failure_early_kill;
 extern int sysctl_memory_failure_recovery;
 extern void shake_page(struct page *p, int access);
-extern atomic_long_t num_poisoned_pages;
+extern atomic_long_unchecked_t num_poisoned_pages;
 extern int soft_offline_page(struct page *page, int flags);
 
 extern void dump_page(struct page *page);
@@ -1756,5 +1771,11 @@ static inline unsigned int debug_guardpage_minorder(void) { return 0; }
 static inline bool page_is_guard(struct page *page) { return false; }
 #endif /* CONFIG_DEBUG_PAGEALLOC */
 
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot);
+#else
+static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {}
+#endif
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_H */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index ace9a5f..81bdb59 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -289,6 +289,8 @@ struct vm_area_struct {
 #ifdef CONFIG_NUMA
 	struct mempolicy *vm_policy;	/* NUMA policy for the VMA */
 #endif
+
+	struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */
 };
 
 struct core_thread {
@@ -437,6 +439,24 @@ struct mm_struct {
 	int first_nid;
 #endif
 	struct uprobes_state uprobes_state;
+
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+	unsigned long pax_flags;
+#endif
+
+#ifdef CONFIG_PAX_DLRESOLVE
+	unsigned long call_dl_resolve;
+#endif
+
+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
+	unsigned long call_syscall;
+#endif
+
+#ifdef CONFIG_PAX_ASLR
+	unsigned long delta_mmap;		/* randomized offset */
+	unsigned long delta_stack;		/* randomized offset */
+#endif
+
 };
 
 /* first nid will either be a valid NID or one of these values */
diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
index c5d5278..f0b68c8 100644
--- a/include/linux/mmiotrace.h
+++ b/include/linux/mmiotrace.h
@@ -46,7 +46,7 @@ extern int kmmio_handler(struct pt_regs *regs, unsigned long addr);
 /* Called from ioremap.c */
 extern void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
 							void __iomem *addr);
-extern void mmiotrace_iounmap(volatile void __iomem *addr);
+extern void mmiotrace_iounmap(const volatile void __iomem *addr);
 
 /* For anyone to insert markers. Remember trailing newline. */
 extern __printf(1, 2) int mmiotrace_printk(const char *fmt, ...);
@@ -66,7 +66,7 @@ static inline void mmiotrace_ioremap(resource_size_t offset,
 {
 }
 
-static inline void mmiotrace_iounmap(volatile void __iomem *addr)
+static inline void mmiotrace_iounmap(const volatile void __iomem *addr)
 {
 }
 
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index c74092e..b663967 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -396,7 +396,7 @@ struct zone {
 	unsigned long		flags;		   /* zone flags, see below */
 
 	/* Zone statistics */
-	atomic_long_t		vm_stat[NR_VM_ZONE_STAT_ITEMS];
+	atomic_long_unchecked_t		vm_stat[NR_VM_ZONE_STAT_ITEMS];
 
 	/*
 	 * The target ratio of ACTIVE_ANON to INACTIVE_ANON pages on
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 779cf7c..e6768240 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -12,7 +12,7 @@
 typedef unsigned long kernel_ulong_t;
 #endif
 
-#define PCI_ANY_ID (~0)
+#define PCI_ANY_ID ((__u16)~0)
 
 struct pci_device_id {
 	__u32 vendor, device;		/* Vendor and device ID or PCI_ANY_ID*/
@@ -138,7 +138,7 @@ struct usb_device_id {
 #define USB_DEVICE_ID_MATCH_INT_PROTOCOL	0x0200
 #define USB_DEVICE_ID_MATCH_INT_NUMBER		0x0400
 
-#define HID_ANY_ID				(~0)
+#define HID_ANY_ID				(~0U)
 #define HID_BUS_ANY				0xffff
 #define HID_GROUP_ANY				0x0000
 
@@ -464,7 +464,7 @@ struct dmi_system_id {
 	const char *ident;
 	struct dmi_strmatch matches[4];
 	void *driver_data;
-};
+} __do_const;
 /*
  * struct dmi_device_id appears during expansion of
  * "MODULE_DEVICE_TABLE(dmi, x)". Compiler doesn't look inside it
diff --git a/include/linux/module.h b/include/linux/module.h
index ead1b57..81a3b6c 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -17,9 +17,11 @@
 #include <linux/moduleparam.h>
 #include <linux/tracepoint.h>
 #include <linux/export.h>
+#include <linux/fs.h>
 
 #include <linux/percpu.h>
 #include <asm/module.h>
+#include <asm/pgtable.h>
 
 /* In stripped ARM and x86-64 modules, ~ is surprisingly rare. */
 #define MODULE_SIG_STRING "~Module signature appended~\n"
@@ -54,12 +56,13 @@ struct module_attribute {
 	int (*test)(struct module *);
 	void (*free)(struct module *);
 };
+typedef struct module_attribute __no_const module_attribute_no_const;
 
 struct module_version_attribute {
 	struct module_attribute mattr;
 	const char *module_name;
 	const char *version;
-} __attribute__ ((__aligned__(sizeof(void *))));
+} __do_const __attribute__ ((__aligned__(sizeof(void *))));
 
 extern ssize_t __modver_version_show(struct module_attribute *,
 				     struct module_kobject *, char *);
@@ -232,7 +235,7 @@ struct module
 
 	/* Sysfs stuff. */
 	struct module_kobject mkobj;
-	struct module_attribute *modinfo_attrs;
+	module_attribute_no_const *modinfo_attrs;
 	const char *version;
 	const char *srcversion;
 	struct kobject *holders_dir;
@@ -281,19 +284,16 @@ struct module
 	int (*init)(void);
 
 	/* If this is non-NULL, vfree after init() returns */
-	void *module_init;
+	void *module_init_rx, *module_init_rw;
 
 	/* Here is the actual code + data, vfree'd on unload. */
-	void *module_core;
+	void *module_core_rx, *module_core_rw;
 
 	/* Here are the sizes of the init and core sections */
-	unsigned int init_size, core_size;
+	unsigned int init_size_rw, core_size_rw;
 
 	/* The size of the executable code in each section.  */
-	unsigned int init_text_size, core_text_size;
-
-	/* Size of RO sections of the module (text+rodata) */
-	unsigned int init_ro_size, core_ro_size;
+	unsigned int init_size_rx, core_size_rx;
 
 	/* Arch-specific module values */
 	struct mod_arch_specific arch;
@@ -349,6 +349,10 @@ struct module
 #ifdef CONFIG_EVENT_TRACING
 	struct ftrace_event_call **trace_events;
 	unsigned int num_trace_events;
+	struct file_operations trace_id;
+	struct file_operations trace_enable;
+	struct file_operations trace_format;
+	struct file_operations trace_filter;
 #endif
 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
 	unsigned int num_ftrace_callsites;
@@ -396,16 +400,46 @@ bool is_module_address(unsigned long addr);
 bool is_module_percpu_address(unsigned long addr);
 bool is_module_text_address(unsigned long addr);
 
+static inline int within_module_range(unsigned long addr, void *start, unsigned long size)
+{
+
+#ifdef CONFIG_PAX_KERNEXEC
+	if (ktla_ktva(addr) >= (unsigned long)start &&
+	    ktla_ktva(addr) < (unsigned long)start + size)
+		return 1;
+#endif
+
+	return ((void *)addr >= start && (void *)addr < start + size);
+}
+
+static inline int within_module_core_rx(unsigned long addr, const struct module *mod)
+{
+	return within_module_range(addr, mod->module_core_rx, mod->core_size_rx);
+}
+
+static inline int within_module_core_rw(unsigned long addr, const struct module *mod)
+{
+	return within_module_range(addr, mod->module_core_rw, mod->core_size_rw);
+}
+
+static inline int within_module_init_rx(unsigned long addr, const struct module *mod)
+{
+	return within_module_range(addr, mod->module_init_rx, mod->init_size_rx);
+}
+
+static inline int within_module_init_rw(unsigned long addr, const struct module *mod)
+{
+	return within_module_range(addr, mod->module_init_rw, mod->init_size_rw);
+}
+
 static inline int within_module_core(unsigned long addr, const struct module *mod)
 {
-	return (unsigned long)mod->module_core <= addr &&
-	       addr < (unsigned long)mod->module_core + mod->core_size;
+	return within_module_core_rx(addr, mod) || within_module_core_rw(addr, mod);
 }
 
 static inline int within_module_init(unsigned long addr, const struct module *mod)
 {
-	return (unsigned long)mod->module_init <= addr &&
-	       addr < (unsigned long)mod->module_init + mod->init_size;
+	return within_module_init_rx(addr, mod) || within_module_init_rw(addr, mod);
 }
 
 /* Search for module by name: must hold module_mutex. */
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index 560ca53..ef621ef 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -25,9 +25,21 @@ unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
    sections.  Returns NULL on failure. */
 void *module_alloc(unsigned long size);
 
+#ifdef CONFIG_PAX_KERNEXEC
+void *module_alloc_exec(unsigned long size);
+#else
+#define module_alloc_exec(x) module_alloc(x)
+#endif
+
 /* Free memory returned from module_alloc. */
 void module_free(struct module *mod, void *module_region);
 
+#ifdef CONFIG_PAX_KERNEXEC
+void module_free_exec(struct module *mod, void *module_region);
+#else
+#define module_free_exec(x, y) module_free((x), (y))
+#endif
+
 /*
  * Apply the given relocation to the (simplified) ELF.  Return -error
  * or 0.
@@ -45,7 +57,9 @@ static inline int apply_relocate(Elf_Shdr *sechdrs,
 				 unsigned int relsec,
 				 struct module *me)
 {
+#ifdef CONFIG_MODULES
 	printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
+#endif
 	return -ENOEXEC;
 }
 #endif
@@ -67,7 +81,9 @@ static inline int apply_relocate_add(Elf_Shdr *sechdrs,
 				     unsigned int relsec,
 				     struct module *me)
 {
+#ifdef CONFIG_MODULES
 	printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
+#endif
 	return -ENOEXEC;
 }
 #endif
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 137b419..fe663ec 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -284,7 +284,7 @@ static inline void __kernel_param_unlock(void)
  * @len is usually just sizeof(string).
  */
 #define module_param_string(name, string, len, perm)			\
-	static const struct kparam_string __param_string_##name		\
+	static const struct kparam_string __param_string_##name __used	\
 		= { len, string };					\
 	__module_param_call(MODULE_PARAM_PREFIX, name,			\
 			    &param_ops_string,				\
@@ -423,7 +423,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp);
  */
 #define module_param_array_named(name, array, type, nump, perm)		\
 	param_check_##type(name, &(array)[0]);				\
-	static const struct kparam_array __param_arr_##name		\
+	static const struct kparam_array __param_arr_##name __used	\
 	= { .max = ARRAY_SIZE(array), .num = nump,                      \
 	    .ops = &param_ops_##type,					\
 	    .elemsize = sizeof(array[0]), .elem = array };		\
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 5a5ff57..5ae5070 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -19,7 +19,7 @@ struct nameidata {
 	unsigned	seq;
 	int		last_type;
 	unsigned	depth;
-	char *saved_names[MAX_NESTED_LINKS + 1];
+	const char *saved_names[MAX_NESTED_LINKS + 1];
 };
 
 /*
@@ -84,12 +84,12 @@ extern void unlock_rename(struct dentry *, struct dentry *);
 
 extern void nd_jump_link(struct nameidata *nd, struct path *path);
 
-static inline void nd_set_link(struct nameidata *nd, char *path)
+static inline void nd_set_link(struct nameidata *nd, const char *path)
 {
 	nd->saved_names[nd->depth] = path;
 }
 
-static inline char *nd_get_link(struct nameidata *nd)
+static inline const char *nd_get_link(const struct nameidata *nd)
 {
 	return nd->saved_names[nd->depth];
 }
diff --git a/include/linux/net.h b/include/linux/net.h
index aa16731..514b875 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -183,7 +183,7 @@ struct net_proto_family {
 	int		(*create)(struct net *net, struct socket *sock,
 				  int protocol, int kern);
 	struct module	*owner;
-};
+} __do_const;
 
 struct iovec;
 struct kvec;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 6151e90..2e0afb0 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1028,6 +1028,7 @@ struct net_device_ops {
 	int			(*ndo_change_carrier)(struct net_device *dev,
 						      bool new_carrier);
 };
+typedef struct net_device_ops __no_const net_device_ops_no_const;
 
 /*
  *	The DEVICE structure.
@@ -1094,7 +1095,7 @@ struct net_device {
 	int			iflink;
 
 	struct net_device_stats	stats;
-	atomic_long_t		rx_dropped; /* dropped packets by core network
+	atomic_long_unchecked_t	rx_dropped; /* dropped packets by core network
 					     * Do not use this in drivers.
 					     */
 
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index ee14284..bc65d63 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -82,7 +82,7 @@ struct nf_sockopt_ops {
 #endif
 	/* Use the module struct to lock set/get code in place */
 	struct module *owner;
-};
+} __do_const;
 
 /* Function to register/unregister hook points. */
 int nf_register_hook(struct nf_hook_ops *reg);
diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 7958e84..ed74d7a 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -98,7 +98,7 @@ struct ip_set_type_variant {
 	/* Return true if "b" set is the same as "a"
 	 * according to the create set parameters */
 	bool (*same_set)(const struct ip_set *a, const struct ip_set *b);
-};
+} __do_const;
 
 /* The core set type structure */
 struct ip_set_type {
diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index ecbb8e4..8a1c4e1 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -16,7 +16,7 @@ struct nfnl_callback {
 		    const struct nlattr * const cda[]);
 	const struct nla_policy *policy;	/* netlink attribute policy */
 	const u_int16_t attr_count;		/* number of nlattr's */
-};
+} __do_const;
 
 struct nfnetlink_subsystem {
 	const char *name;
diff --git a/include/linux/netfilter/xt_gradm.h b/include/linux/netfilter/xt_gradm.h
new file mode 100644
index 0000000..33f4af8
--- /dev/null
+++ b/include/linux/netfilter/xt_gradm.h
@@ -0,0 +1,9 @@
+#ifndef _LINUX_NETFILTER_XT_GRADM_H
+#define _LINUX_NETFILTER_XT_GRADM_H 1
+
+struct xt_gradm_mtinfo {
+	__u16 flags;
+	__u16 invflags;
+};
+
+#endif
diff --git a/include/linux/nls.h b/include/linux/nls.h
index 5dc635f..35f5e11 100644
--- a/include/linux/nls.h
+++ b/include/linux/nls.h
@@ -31,7 +31,7 @@ struct nls_table {
 	const unsigned char *charset2upper;
 	struct module *owner;
 	struct nls_table *next;
-};
+} __do_const;
 
 /* this value hold the maximum octet of charset */
 #define NLS_MAX_CHARSET_SIZE 6 /* for UTF-8 */
diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index d65746e..62e72c2 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -51,7 +51,8 @@ struct notifier_block {
 	int (*notifier_call)(struct notifier_block *, unsigned long, void *);
 	struct notifier_block __rcu *next;
 	int priority;
-};
+} __do_const;
+typedef struct notifier_block __no_const notifier_block_no_const;
 
 struct atomic_notifier_head {
 	spinlock_t lock;
diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
index a4c5624..79d6d88 100644
--- a/include/linux/oprofile.h
+++ b/include/linux/oprofile.h
@@ -139,9 +139,9 @@ int oprofilefs_create_ulong(struct super_block * sb, struct dentry * root,
 int oprofilefs_create_ro_ulong(struct super_block * sb, struct dentry * root,
 	char const * name, ulong * val);
  
-/** Create a file for read-only access to an atomic_t. */
+/** Create a file for read-only access to an atomic_unchecked_t. */
 int oprofilefs_create_ro_atomic(struct super_block * sb, struct dentry * root,
-	char const * name, atomic_t * val);
+	char const * name, atomic_unchecked_t * val);
  
 /** create a directory */
 struct dentry * oprofilefs_mkdir(struct super_block * sb, struct dentry * root,
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
index 45fc162..01a4068 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -80,7 +80,8 @@ struct hotplug_slot_ops {
 	int (*get_attention_status)	(struct hotplug_slot *slot, u8 *value);
 	int (*get_latch_status)		(struct hotplug_slot *slot, u8 *value);
 	int (*get_adapter_status)	(struct hotplug_slot *slot, u8 *value);
-};
+} __do_const;
+typedef struct hotplug_slot_ops __no_const hotplug_slot_ops_no_const;
 
 /**
  * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 1d795df..727aa7b 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -333,8 +333,8 @@ struct perf_event {
 
 	enum perf_event_active_state	state;
 	unsigned int			attach_state;
-	local64_t			count;
-	atomic64_t			child_count;
+	local64_t			count; /* PaX: fix it one day */
+	atomic64_unchecked_t		child_count;
 
 	/*
 	 * These are the total time in nanoseconds that the event
@@ -385,8 +385,8 @@ struct perf_event {
 	 * These accumulate total time (in nanoseconds) that children
 	 * events have been enabled and running, respectively.
 	 */
-	atomic64_t			child_total_time_enabled;
-	atomic64_t			child_total_time_running;
+	atomic64_unchecked_t		child_total_time_enabled;
+	atomic64_unchecked_t		child_total_time_running;
 
 	/*
 	 * Protect attach/detach and child_list:
@@ -704,7 +704,7 @@ static inline void perf_callchain_store(struct perf_callchain_entry *entry, u64
 		entry->ip[entry->nr++] = ip;
 }
 
-extern int sysctl_perf_event_paranoid;
+extern int sysctl_perf_event_legitimately_concerned;
 extern int sysctl_perf_event_mlock;
 extern int sysctl_perf_event_sample_rate;
 
@@ -714,17 +714,17 @@ extern int perf_proc_update_handler(struct ctl_table *table, int write,
 
 static inline bool perf_paranoid_tracepoint_raw(void)
 {
-	return sysctl_perf_event_paranoid > -1;
+	return sysctl_perf_event_legitimately_concerned > -1;
 }
 
 static inline bool perf_paranoid_cpu(void)
 {
-	return sysctl_perf_event_paranoid > 0;
+	return sysctl_perf_event_legitimately_concerned > 0;
 }
 
 static inline bool perf_paranoid_kernel(void)
 {
-	return sysctl_perf_event_paranoid > 1;
+	return sysctl_perf_event_legitimately_concerned > 1;
 }
 
 extern void perf_event_init(void);
@@ -812,7 +812,7 @@ static inline void perf_restore_debug_store(void)			{ }
  */
 #define perf_cpu_notifier(fn)						\
 do {									\
-	static struct notifier_block fn##_nb __cpuinitdata =		\
+	static struct notifier_block fn##_nb =				\
 		{ .notifier_call = fn, .priority = CPU_PRI_PERF };	\
 	unsigned long cpu = smp_processor_id();				\
 	unsigned long flags;						\
@@ -831,7 +831,7 @@ do {									\
 struct perf_pmu_events_attr {
 	struct device_attribute attr;
 	u64 id;
-};
+} __do_const;
 
 #define PMU_EVENT_ATTR(_name, _var, _id, _show)				\
 static struct perf_pmu_events_attr _var = {				\
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index ad1a427..6419649 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -45,9 +45,9 @@ struct pipe_buffer {
 struct pipe_inode_info {
 	wait_queue_head_t wait;
 	unsigned int nrbufs, curbuf, buffers;
-	unsigned int readers;
-	unsigned int writers;
-	unsigned int waiting_writers;
+	atomic_t readers;
+	atomic_t writers;
+	atomic_t waiting_writers;
 	unsigned int r_counter;
 	unsigned int w_counter;
 	struct page *tmp_page;
diff --git a/include/linux/platform_data/usb-ehci-s5p.h b/include/linux/platform_data/usb-ehci-s5p.h
index 5f28cae..3d23723 100644
--- a/include/linux/platform_data/usb-ehci-s5p.h
+++ b/include/linux/platform_data/usb-ehci-s5p.h
@@ -14,7 +14,7 @@
 struct s5p_ehci_platdata {
 	int (*phy_init)(struct platform_device *pdev, int type);
 	int (*phy_exit)(struct platform_device *pdev, int type);
-};
+} __no_const;
 
 extern void s5p_ehci_set_platdata(struct s5p_ehci_platdata *pd);
 
diff --git a/include/linux/platform_data/usb-exynos.h b/include/linux/platform_data/usb-exynos.h
index c256c59..8ea94c7 100644
--- a/include/linux/platform_data/usb-exynos.h
+++ b/include/linux/platform_data/usb-exynos.h
@@ -14,7 +14,7 @@
 struct exynos4_ohci_platdata {
 	int (*phy_init)(struct platform_device *pdev, int type);
 	int (*phy_exit)(struct platform_device *pdev, int type);
-};
+} __no_const;
 
 extern void exynos4_ohci_set_platdata(struct exynos4_ohci_platdata *pd);
 
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 7c1d252..c5c773e 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -48,7 +48,7 @@ struct gpd_dev_ops {
 
 struct gpd_cpu_data {
 	unsigned int saved_exit_latency;
-	struct cpuidle_state *idle_state;
+	cpuidle_state_no_const *idle_state;
 };
 
 struct generic_pm_domain {
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 7d7e09e..8671ef8 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -104,7 +104,7 @@ static inline bool pm_runtime_callbacks_present(struct device *dev)
 
 static inline void pm_runtime_mark_last_busy(struct device *dev)
 {
-	ACCESS_ONCE(dev->power.last_busy) = jiffies;
+	ACCESS_ONCE_RW(dev->power.last_busy) = jiffies;
 }
 
 #else /* !CONFIG_PM_RUNTIME */
diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index 195aafc..49a7bc2 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -297,7 +297,7 @@ static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
 struct pnp_fixup {
 	char id[7];
 	void (*quirk_function) (struct pnp_dev * dev);	/* fixup function */
-};
+} __do_const;
 
 /* config parameters */
 #define PNP_CONFIG_NORMAL	0x0001
diff --git a/include/linux/poison.h b/include/linux/poison.h
index 2110a81..13a11bb 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -19,8 +19,8 @@
  * under normal circumstances, used to verify that nobody uses
  * non-initialized list entries.
  */
-#define LIST_POISON1  ((void *) 0x00100100 + POISON_POINTER_DELTA)
-#define LIST_POISON2  ((void *) 0x00200200 + POISON_POINTER_DELTA)
+#define LIST_POISON1  ((void *) (long)0xFFFFFF01)
+#define LIST_POISON2  ((void *) (long)0xFFFFFF02)
 
 /********** include/linux/timer.h **********/
 /*
diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
index c0f44c2..1572583 100644
--- a/include/linux/power/smartreflex.h
+++ b/include/linux/power/smartreflex.h
@@ -238,7 +238,7 @@ struct omap_sr_class_data {
 	int (*notify)(struct omap_sr *sr, u32 status);
 	u8 notify_flags;
 	u8 class_type;
-};
+} __do_const;
 
 /**
  * struct omap_sr_nvalue_table	- Smartreflex n-target value info
diff --git a/include/linux/ppp-comp.h b/include/linux/ppp-comp.h
index 4ea1d37..80f4b33 100644
--- a/include/linux/ppp-comp.h
+++ b/include/linux/ppp-comp.h
@@ -84,7 +84,7 @@ struct compressor {
 	struct module *owner;
 	/* Extra skb space needed by the compressor algorithm */
 	unsigned int comp_extra;
-};
+} __do_const;
 
 /*
  * The return value from decompress routine is the length of the
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 822171f..12b30e8 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -98,6 +98,8 @@ int no_printk(const char *fmt, ...)
 extern asmlinkage __printf(1, 2)
 void early_printk(const char *fmt, ...);
 
+extern int kptr_restrict;
+
 #ifdef CONFIG_PRINTK
 asmlinkage __printf(5, 0)
 int vprintk_emit(int facility, int level,
@@ -132,7 +134,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
 
 extern int printk_delay_msec;
 extern int dmesg_restrict;
-extern int kptr_restrict;
 
 extern void wake_up_klogd(void);
 
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 94dfb2a..88b9d3b 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -165,6 +165,18 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode,
 	return proc_create_data(name, mode, parent, proc_fops, NULL);
 }
 
+static inline struct proc_dir_entry *proc_create_grsec(const char *name, umode_t mode,
+	struct proc_dir_entry *parent, const struct file_operations *proc_fops)
+{
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL);
+#else
+	return proc_create_data(name, mode, parent, proc_fops, NULL);
+#endif
+}
+
 static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
 	umode_t mode, struct proc_dir_entry *base, 
 	read_proc_t *read_proc, void * data)
@@ -266,7 +278,7 @@ struct proc_ns_operations {
 	void (*put)(void *ns);
 	int (*install)(struct nsproxy *nsproxy, void *ns);
 	unsigned int (*inum)(void *ns);
-};
+} __do_const;
 extern const struct proc_ns_operations netns_operations;
 extern const struct proc_ns_operations utsns_operations;
 extern const struct proc_ns_operations ipcns_operations;
diff --git a/include/linux/random.h b/include/linux/random.h
index 347ce55..880f97c 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -39,6 +39,11 @@ void prandom_seed(u32 seed);
 u32 prandom_u32_state(struct rnd_state *);
 void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
 
+static inline unsigned long pax_get_random_long(void)
+{
+	return prandom_u32() + (sizeof(long) > 4 ? (unsigned long)prandom_u32() << 32 : 0);
+}
+
 /*
  * Handle minimum values for seeds
  */
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 8089e35..3a0d59a 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -44,6 +44,9 @@ extern void __list_add_rcu(struct list_head *new,
 		struct list_head *prev, struct list_head *next);
 #endif
 
+extern void __pax_list_add_rcu(struct list_head *new,
+		struct list_head *prev, struct list_head *next);
+
 /**
  * list_add_rcu - add a new entry to rcu-protected list
  * @new: new entry to be added
@@ -65,6 +68,11 @@ static inline void list_add_rcu(struct list_head *new, struct list_head *head)
 	__list_add_rcu(new, head, head->next);
 }
 
+static inline void pax_list_add_rcu(struct list_head *new, struct list_head *head)
+{
+	__pax_list_add_rcu(new, head, head->next);
+}
+
 /**
  * list_add_tail_rcu - add a new entry to rcu-protected list
  * @new: new entry to be added
@@ -87,6 +95,12 @@ static inline void list_add_tail_rcu(struct list_head *new,
 	__list_add_rcu(new, head->prev, head);
 }
 
+static inline void pax_list_add_tail_rcu(struct list_head *new,
+					struct list_head *head)
+{
+	__pax_list_add_rcu(new, head->prev, head);
+}
+
 /**
  * list_del_rcu - deletes entry from list without re-initialization
  * @entry: the element to delete from the list.
@@ -117,6 +131,8 @@ static inline void list_del_rcu(struct list_head *entry)
 	entry->prev = LIST_POISON2;
 }
 
+extern void pax_list_del_rcu(struct list_head *entry);
+
 /**
  * hlist_del_init_rcu - deletes entry from hash list with re-initialization
  * @n: the element to delete from the hash list.
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index 23b3630..e1bc12b 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -18,9 +18,9 @@ extern int unregister_reboot_notifier(struct notifier_block *);
  * Architecture-specific implementations of sys_reboot commands.
  */
 
-extern void machine_restart(char *cmd);
-extern void machine_halt(void);
-extern void machine_power_off(void);
+extern void machine_restart(char *cmd) __noreturn;
+extern void machine_halt(void) __noreturn;
+extern void machine_power_off(void) __noreturn;
 
 extern void machine_shutdown(void);
 struct pt_regs;
@@ -31,9 +31,9 @@ extern void machine_crash_shutdown(struct pt_regs *);
  */
 
 extern void kernel_restart_prepare(char *cmd);
-extern void kernel_restart(char *cmd);
-extern void kernel_halt(void);
-extern void kernel_power_off(void);
+extern void kernel_restart(char *cmd) __noreturn;
+extern void kernel_halt(void) __noreturn;
+extern void kernel_power_off(void) __noreturn;
 
 extern int C_A_D; /* for sysctl */
 void ctrl_alt_del(void);
@@ -47,7 +47,7 @@ extern int orderly_poweroff(bool force);
  * Emergency restart, callable from an interrupt handler.
  */
 
-extern void emergency_restart(void);
+extern void emergency_restart(void) __noreturn;
 #include <asm/emergency-restart.h>
 
 #endif /* _LINUX_REBOOT_H */
diff --git a/include/linux/regset.h b/include/linux/regset.h
index 8e0c9fe..ac4d221 100644
--- a/include/linux/regset.h
+++ b/include/linux/regset.h
@@ -161,7 +161,8 @@ struct user_regset {
 	unsigned int 			align;
 	unsigned int 			bias;
 	unsigned int 			core_note_type;
-};
+} __do_const;
+typedef struct user_regset __no_const user_regset_no_const;
 
 /**
  * struct user_regset_view - available regsets
diff --git a/include/linux/relay.h b/include/linux/relay.h
index 91cacc3..b55ff74 100644
--- a/include/linux/relay.h
+++ b/include/linux/relay.h
@@ -160,7 +160,7 @@ struct rchan_callbacks
 	 * The callback should return 0 if successful, negative if not.
 	 */
 	int (*remove_buf_file)(struct dentry *dentry);
-};
+} __no_const;
 
 /*
  * CONFIG_RELAY kernel API, kernel/relay.c
diff --git a/include/linux/rio.h b/include/linux/rio.h
index a3e7842..d973ca6 100644
--- a/include/linux/rio.h
+++ b/include/linux/rio.h
@@ -339,7 +339,7 @@ struct rio_ops {
 	int (*map_inb)(struct rio_mport *mport, dma_addr_t lstart,
 			u64 rstart, u32 size, u32 flags);
 	void (*unmap_inb)(struct rio_mport *mport, dma_addr_t lstart);
-};
+} __no_const;
 
 #define RIO_RESOURCE_MEM	0x00000100
 #define RIO_RESOURCE_DOORBELL	0x00000200
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 6dacb93..6174423 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -145,8 +145,8 @@ static inline void anon_vma_unlock_read(struct anon_vma *anon_vma)
 void anon_vma_init(void);	/* create anon_vma_cachep */
 int  anon_vma_prepare(struct vm_area_struct *);
 void unlink_anon_vmas(struct vm_area_struct *);
-int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *);
-int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *);
+int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *);
+int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *);
 
 static inline void anon_vma_merge(struct vm_area_struct *vma,
 				  struct vm_area_struct *next)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index be4e742..7f9d593 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -62,6 +62,7 @@ struct bio_list;
 struct fs_struct;
 struct perf_event_context;
 struct blk_plug;
+struct linux_binprm;
 
 /*
  * List of flags we want to share for kernel threads,
@@ -315,7 +316,7 @@ extern char __sched_text_start[], __sched_text_end[];
 extern int in_sched_functions(unsigned long addr);
 
 #define	MAX_SCHEDULE_TIMEOUT	LONG_MAX
-extern signed long schedule_timeout(signed long timeout);
+extern signed long schedule_timeout(signed long timeout) __intentional_overflow(-1);
 extern signed long schedule_timeout_interruptible(signed long timeout);
 extern signed long schedule_timeout_killable(signed long timeout);
 extern signed long schedule_timeout_uninterruptible(signed long timeout);
@@ -329,6 +330,18 @@ struct user_namespace;
 #include <linux/aio.h>
 
 #ifdef CONFIG_MMU
+
+#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
+extern unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags);
+#else
+static inline unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
+{
+	return 0;
+}
+#endif
+
+extern bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset);
+extern unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset);
 extern void arch_pick_mmap_layout(struct mm_struct *mm);
 extern unsigned long
 arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
@@ -605,6 +618,17 @@ struct signal_struct {
 #ifdef CONFIG_TASKSTATS
 	struct taskstats *stats;
 #endif
+
+#ifdef CONFIG_GRKERNSEC
+	u32 curr_ip;
+	u32 saved_ip;
+	u32 gr_saddr;
+	u32 gr_daddr;
+	u16 gr_sport;
+	u16 gr_dport;
+	u8 used_accept:1;
+#endif
+
 #ifdef CONFIG_AUDIT
 	unsigned audit_tty;
 	struct tty_audit_buf *tty_audit_buf;
@@ -683,6 +707,11 @@ struct user_struct {
 	struct key *session_keyring;	/* UID's default session keyring */
 #endif
 
+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE)
+	unsigned int banned;
+	unsigned long ban_expires;
+#endif
+
 	/* Hash table maintenance information */
 	struct hlist_node uidhash_node;
 	kuid_t uid;
@@ -1082,7 +1111,7 @@ struct sched_class {
 #ifdef CONFIG_FAIR_GROUP_SCHED
 	void (*task_move_group) (struct task_struct *p, int on_rq);
 #endif
-};
+} __do_const;
 
 struct load_weight {
 	unsigned long weight, inv_weight;
@@ -1323,8 +1352,8 @@ struct task_struct {
 	struct list_head thread_group;
 
 	struct completion *vfork_done;		/* for vfork() */
-	int __user *set_child_tid;		/* CLONE_CHILD_SETTID */
-	int __user *clear_child_tid;		/* CLONE_CHILD_CLEARTID */
+	pid_t __user *set_child_tid;		/* CLONE_CHILD_SETTID */
+	pid_t __user *clear_child_tid;		/* CLONE_CHILD_CLEARTID */
 
 	cputime_t utime, stime, utimescaled, stimescaled;
 	cputime_t gtime;
@@ -1349,11 +1378,6 @@ struct task_struct {
 	struct task_cputime cputime_expires;
 	struct list_head cpu_timers[3];
 
-/* process credentials */
-	const struct cred __rcu *real_cred; /* objective and real subjective task
-					 * credentials (COW) */
-	const struct cred __rcu *cred;	/* effective (overridable) subjective task
-					 * credentials (COW) */
 	char comm[TASK_COMM_LEN]; /* executable name excluding path
 				     - access with [gs]et_task_comm (which lock
 				       it with task_lock())
@@ -1370,6 +1394,10 @@ struct task_struct {
 #endif
 /* CPU-specific state of this task */
 	struct thread_struct thread;
+/* thread_info moved to task_struct */
+#ifdef CONFIG_X86
+	struct thread_info tinfo;
+#endif
 /* filesystem information */
 	struct fs_struct *fs;
 /* open file information */
@@ -1443,6 +1471,10 @@ struct task_struct {
 	gfp_t lockdep_reclaim_gfp;
 #endif
 
+/* process credentials */
+	const struct cred __rcu *real_cred; /* objective and real subjective task
+					 * credentials (COW) */
+
 /* journalling filesystem info */
 	void *journal_info;
 
@@ -1481,6 +1513,10 @@ struct task_struct {
 	/* cg_list protected by css_set_lock and tsk->alloc_lock */
 	struct list_head cg_list;
 #endif
+
+	const struct cred __rcu *cred;	/* effective (overridable) subjective task
+					 * credentials (COW) */
+
 #ifdef CONFIG_FUTEX
 	struct robust_list_head __user *robust_list;
 #ifdef CONFIG_COMPAT
@@ -1577,8 +1613,74 @@ struct task_struct {
 #ifdef CONFIG_UPROBES
 	struct uprobe_task *utask;
 #endif
+
+#ifdef CONFIG_GRKERNSEC
+	/* grsecurity */
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	u64 exec_id;
+#endif
+#ifdef CONFIG_GRKERNSEC_SETXID
+	const struct cred *delayed_cred;
+#endif
+	struct dentry *gr_chroot_dentry;
+	struct acl_subject_label *acl;
+	struct acl_role_label *role;
+	struct file *exec_file;
+	unsigned long brute_expires;
+	u16 acl_role_id;
+	/* is this the task that authenticated to the special role */
+	u8 acl_sp_role;
+	u8 is_writable;
+	u8 brute;
+	u8 gr_is_chrooted;
+#endif
+
 };
 
+#define MF_PAX_PAGEEXEC		0x01000000	/* Paging based non-executable pages */
+#define MF_PAX_EMUTRAMP		0x02000000	/* Emulate trampolines */
+#define MF_PAX_MPROTECT		0x04000000	/* Restrict mprotect() */
+#define MF_PAX_RANDMMAP		0x08000000	/* Randomize mmap() base */
+/*#define MF_PAX_RANDEXEC		0x10000000*/	/* Randomize ET_EXEC base */
+#define MF_PAX_SEGMEXEC		0x20000000	/* Segmentation based non-executable pages */
+
+#ifdef CONFIG_PAX_SOFTMODE
+extern int pax_softmode;
+#endif
+
+extern int pax_check_flags(unsigned long *);
+
+/* if tsk != current then task_lock must be held on it */
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+static inline unsigned long pax_get_flags(struct task_struct *tsk)
+{
+	if (likely(tsk->mm))
+		return tsk->mm->pax_flags;
+	else
+		return 0UL;
+}
+
+/* if tsk != current then task_lock must be held on it */
+static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags)
+{
+	if (likely(tsk->mm)) {
+		tsk->mm->pax_flags = flags;
+		return 0;
+	}
+	return -EINVAL;
+}
+#endif
+
+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
+extern void pax_set_initial_flags(struct linux_binprm *bprm);
+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
+extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
+#endif
+
+extern void pax_report_fault(struct pt_regs *regs, void *pc, void *sp);
+extern void pax_report_insns(struct pt_regs *regs, void *pc, void *sp);
+extern void pax_report_refcount_overflow(struct pt_regs *regs);
+
 /* Future-safe accessor for struct task_struct's cpus_allowed. */
 #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
 
@@ -1637,7 +1739,7 @@ struct pid_namespace;
 pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
 			struct pid_namespace *ns);
 
-static inline pid_t task_pid_nr(struct task_struct *tsk)
+static inline pid_t task_pid_nr(const struct task_struct *tsk)
 {
 	return tsk->pid;
 }
@@ -2073,7 +2175,9 @@ void yield(void);
 extern struct exec_domain	default_exec_domain;
 
 union thread_union {
+#ifndef CONFIG_X86
 	struct thread_info thread_info;
+#endif
 	unsigned long stack[THREAD_SIZE/sizeof(long)];
 };
 
@@ -2106,6 +2210,7 @@ extern struct pid_namespace init_pid_ns;
  */
 
 extern struct task_struct *find_task_by_vpid(pid_t nr);
+extern struct task_struct *find_task_by_vpid_unrestricted(pid_t nr);
 extern struct task_struct *find_task_by_pid_ns(pid_t nr,
 		struct pid_namespace *ns);
 
@@ -2272,7 +2377,7 @@ extern void __cleanup_sighand(struct sighand_struct *);
 extern void exit_itimers(struct signal_struct *);
 extern void flush_itimer_signals(void);
 
-extern void do_group_exit(int);
+extern __noreturn void do_group_exit(int);
 
 extern int allow_signal(int);
 extern int disallow_signal(int);
@@ -2463,9 +2568,9 @@ static inline unsigned long *end_of_stack(struct task_struct *p)
 
 #endif
 
-static inline int object_is_on_stack(void *obj)
+static inline int object_starts_on_stack(void *obj)
 {
-	void *stack = task_stack_page(current);
+	const void *stack = task_stack_page(current);
 
 	return (obj >= stack) && (obj < (stack + THREAD_SIZE));
 }
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index bf8086b..962b035 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -30,6 +30,7 @@ enum { sysctl_hung_task_timeout_secs = 0 };
 #define DEFAULT_MAX_MAP_COUNT	(USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)
 
 extern int sysctl_max_map_count;
+extern unsigned long sysctl_heap_stack_gap;
 
 extern unsigned int sysctl_sched_latency;
 extern unsigned int sysctl_sched_min_granularity;
diff --git a/include/linux/security.h b/include/linux/security.h
index 032c366..2c1c2dc2 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -26,6 +26,7 @@
 #include <linux/capability.h>
 #include <linux/slab.h>
 #include <linux/err.h>
+#include <linux/grsecurity.h>
 
 struct linux_binprm;
 struct cred;
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 68a04a3..866e6a1 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -26,6 +26,9 @@ struct seq_file {
 	struct mutex lock;
 	const struct seq_operations *op;
 	int poll_event;
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	u64 exec_id;
+#endif
 #ifdef CONFIG_USER_NS
 	struct user_namespace *user_ns;
 #endif
@@ -38,6 +41,7 @@ struct seq_operations {
 	void * (*next) (struct seq_file *m, void *v, loff_t *pos);
 	int (*show) (struct seq_file *m, void *v);
 };
+typedef struct seq_operations __no_const seq_operations_no_const;
 
 #define SEQ_SKIP 1
 
diff --git a/include/linux/shm.h b/include/linux/shm.h
index 429c199..4d42e38 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -21,6 +21,10 @@ struct shmid_kernel /* private to the kernel */
 
 	/* The task created the shm object.  NULL if the task is dead. */
 	struct task_struct	*shm_creator;
+#ifdef CONFIG_GRKERNSEC
+	time_t			shm_createtime;
+	pid_t			shm_lapid;
+#endif
 };
 
 /* shm_mode upper byte flags */
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index b8292d8..96db310 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -599,7 +599,7 @@ extern bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,
 extern struct sk_buff *__alloc_skb(unsigned int size,
 				   gfp_t priority, int flags, int node);
 extern struct sk_buff *build_skb(void *data, unsigned int frag_size);
-static inline struct sk_buff *alloc_skb(unsigned int size,
+static inline struct sk_buff * __intentional_overflow(0) alloc_skb(unsigned int size,
 					gfp_t priority)
 {
 	return __alloc_skb(size, priority, 0, NUMA_NO_NODE);
@@ -709,7 +709,7 @@ static inline struct skb_shared_hwtstamps *skb_hwtstamps(struct sk_buff *skb)
  */
 static inline int skb_queue_empty(const struct sk_buff_head *list)
 {
-	return list->next == (struct sk_buff *)list;
+	return list->next == (const struct sk_buff *)list;
 }
 
 /**
@@ -722,7 +722,7 @@ static inline int skb_queue_empty(const struct sk_buff_head *list)
 static inline bool skb_queue_is_last(const struct sk_buff_head *list,
 				     const struct sk_buff *skb)
 {
-	return skb->next == (struct sk_buff *)list;
+	return skb->next == (const struct sk_buff *)list;
 }
 
 /**
@@ -735,7 +735,7 @@ static inline bool skb_queue_is_last(const struct sk_buff_head *list,
 static inline bool skb_queue_is_first(const struct sk_buff_head *list,
 				      const struct sk_buff *skb)
 {
-	return skb->prev == (struct sk_buff *)list;
+	return skb->prev == (const struct sk_buff *)list;
 }
 
 /**
@@ -1756,7 +1756,7 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len)
  * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
  */
 #ifndef NET_SKB_PAD
-#define NET_SKB_PAD	max(32, L1_CACHE_BYTES)
+#define NET_SKB_PAD	max(_AC(32,UL), L1_CACHE_BYTES)
 #endif
 
 extern int ___pskb_trim(struct sk_buff *skb, unsigned int len);
@@ -2351,7 +2351,7 @@ extern struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags,
 					 int noblock, int *err);
 extern unsigned int    datagram_poll(struct file *file, struct socket *sock,
 				     struct poll_table_struct *wait);
-extern int	       skb_copy_datagram_iovec(const struct sk_buff *from,
+extern int	       __intentional_overflow(0) skb_copy_datagram_iovec(const struct sk_buff *from,
 					       int offset, struct iovec *to,
 					       int size);
 extern int	       skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
@@ -2641,6 +2641,9 @@ static inline void nf_reset(struct sk_buff *skb)
 	nf_bridge_put(skb->nf_bridge);
 	skb->nf_bridge = NULL;
 #endif
+#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
+	skb->nf_trace = 0;
+#endif
 }
 
 static inline void nf_reset_trace(struct sk_buff *skb)
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 5d168d7..720bff3 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -12,13 +12,20 @@
 #include <linux/gfp.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
-
+#include <linux/err.h>
 
 /*
  * Flags to pass to kmem_cache_create().
  * The ones marked DEBUG are only valid if CONFIG_SLAB_DEBUG is set.
  */
 #define SLAB_DEBUG_FREE		0x00000100UL	/* DEBUG: Perform (expensive) checks on free */
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+#define SLAB_USERCOPY		0x00000200UL	/* PaX: Allow copying objs to/from userland */
+#else
+#define SLAB_USERCOPY		0x00000000UL
+#endif
+
 #define SLAB_RED_ZONE		0x00000400UL	/* DEBUG: Red zone objs in a cache */
 #define SLAB_POISON		0x00000800UL	/* DEBUG: Poison objects */
 #define SLAB_HWCACHE_ALIGN	0x00002000UL	/* Align objs on cache lines */
@@ -89,10 +96,13 @@
  * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can.
  * Both make kfree a no-op.
  */
-#define ZERO_SIZE_PTR ((void *)16)
+#define ZERO_SIZE_PTR				\
+({						\
+	BUILD_BUG_ON(!(MAX_ERRNO & ~PAGE_MASK));\
+	(void *)(-MAX_ERRNO-1L);		\
+})
 
-#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \
-				(unsigned long)ZERO_SIZE_PTR)
+#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) - 1 >= (unsigned long)ZERO_SIZE_PTR - 1)
 
 /*
  * Common fields provided in kmem_cache by all slab allocators
@@ -112,7 +122,7 @@ struct kmem_cache {
 	unsigned int align;	/* Alignment as calculated */
 	unsigned long flags;	/* Active flags on the slab */
 	const char *name;	/* Slab name for sysfs */
-	int refcount;		/* Use counter */
+	atomic_t refcount;	/* Use counter */
 	void (*ctor)(void *);	/* Called on object slot creation */
 	struct list_head list;	/* List of all slab caches on the system */
 };
@@ -232,6 +242,8 @@ void * __must_check krealloc(const void *, size_t, gfp_t);
 void kfree(const void *);
 void kzfree(const void *);
 size_t ksize(const void *);
+const char *check_heap_object(const void *ptr, unsigned long n);
+bool is_usercopy_object(const void *ptr);
 
 /*
  * Allocator specific definitions. These are mainly used to establish optimized
@@ -311,6 +323,7 @@ size_t ksize(const void *);
  * for general use, and so are not documented here. For a full list of
  * potential flags, always refer to linux/gfp.h.
  */
+
 static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
 {
 	if (size != 0 && n > SIZE_MAX / size)
@@ -370,7 +383,7 @@ static inline void *kmem_cache_alloc_node(struct kmem_cache *cachep,
 #if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
 	(defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) || \
 	(defined(CONFIG_SLOB) && defined(CONFIG_TRACING))
-extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
+extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long) __size_overflow(1);
 #define kmalloc_track_caller(size, flags) \
 	__kmalloc_track_caller(size, flags, _RET_IP_)
 #else
@@ -390,7 +403,7 @@ extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
 #if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
 	(defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) || \
 	(defined(CONFIG_SLOB) && defined(CONFIG_TRACING))
-extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long);
+extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long) __size_overflow(1);
 #define kmalloc_node_track_caller(size, flags, node) \
 	__kmalloc_node_track_caller(size, flags, node, \
 			_RET_IP_)
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index 8bb6e0e..8eb0dbe 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -52,7 +52,7 @@ struct kmem_cache {
 /* 4) cache creation/removal */
 	const char *name;
 	struct list_head list;
-	int refcount;
+	atomic_t refcount;
 	int object_size;
 	int align;
 
@@ -68,10 +68,10 @@ struct kmem_cache {
 	unsigned long node_allocs;
 	unsigned long node_frees;
 	unsigned long node_overflow;
-	atomic_t allochit;
-	atomic_t allocmiss;
-	atomic_t freehit;
-	atomic_t freemiss;
+	atomic_unchecked_t allochit;
+	atomic_unchecked_t allocmiss;
+	atomic_unchecked_t freehit;
+	atomic_unchecked_t freemiss;
 
 	/*
 	 * If debugging is enabled, then the allocator can add additional
@@ -111,11 +111,16 @@ struct cache_sizes {
 #ifdef CONFIG_ZONE_DMA
 	struct kmem_cache	*cs_dmacachep;
 #endif
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	struct kmem_cache	*cs_usercopycachep;
+#endif
+
 };
 extern struct cache_sizes malloc_sizes[];
 
 void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
-void *__kmalloc(size_t size, gfp_t flags);
+void *__kmalloc(size_t size, gfp_t flags) __size_overflow(1);
 
 #ifdef CONFIG_TRACING
 extern void *kmem_cache_alloc_trace(struct kmem_cache *, gfp_t, size_t);
@@ -152,6 +157,13 @@ found:
 			cachep = malloc_sizes[i].cs_dmacachep;
 		else
 #endif
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+		if (flags & GFP_USERCOPY)
+			cachep = malloc_sizes[i].cs_usercopycachep;
+		else
+#endif
+
 			cachep = malloc_sizes[i].cs_cachep;
 
 		ret = kmem_cache_alloc_trace(cachep, flags, size);
@@ -162,7 +174,7 @@ found:
 }
 
 #ifdef CONFIG_NUMA
-extern void *__kmalloc_node(size_t size, gfp_t flags, int node);
+extern void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1);
 extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
 
 #ifdef CONFIG_TRACING
@@ -205,6 +217,13 @@ found:
 			cachep = malloc_sizes[i].cs_dmacachep;
 		else
 #endif
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+		if (flags & GFP_USERCOPY)
+			cachep = malloc_sizes[i].cs_usercopycachep;
+		else
+#endif
+
 			cachep = malloc_sizes[i].cs_cachep;
 
 		return kmem_cache_alloc_node_trace(cachep, flags, node, size);
diff --git a/include/linux/slob_def.h b/include/linux/slob_def.h
index f28e14a..7831211 100644
--- a/include/linux/slob_def.h
+++ b/include/linux/slob_def.h
@@ -11,7 +11,7 @@ static __always_inline void *kmem_cache_alloc(struct kmem_cache *cachep,
 	return kmem_cache_alloc_node(cachep, flags, NUMA_NO_NODE);
 }
 
-void *__kmalloc_node(size_t size, gfp_t flags, int node);
+void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1);
 
 static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
 {
@@ -31,7 +31,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags)
 	return __kmalloc_node(size, flags, NUMA_NO_NODE);
 }
 
-static __always_inline void *__kmalloc(size_t size, gfp_t flags)
+static __always_inline __size_overflow(1) void *__kmalloc(size_t size, gfp_t flags)
 {
 	return kmalloc(size, flags);
 }
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 9db4825..ed42fb5 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -91,7 +91,7 @@ struct kmem_cache {
 	struct kmem_cache_order_objects max;
 	struct kmem_cache_order_objects min;
 	gfp_t allocflags;	/* gfp flags to use on each alloc */
-	int refcount;		/* Refcount for slab cache destroy */
+	atomic_t refcount;	/* Refcount for slab cache destroy */
 	void (*ctor)(void *);
 	int inuse;		/* Offset to metadata */
 	int align;		/* Alignment */
@@ -156,7 +156,7 @@ extern struct kmem_cache *kmalloc_caches[SLUB_PAGE_SHIFT];
  * Sorry that the following has to be that ugly but some versions of GCC
  * have trouble with constant propagation and loops.
  */
-static __always_inline int kmalloc_index(size_t size)
+static __always_inline __size_overflow(1) int kmalloc_index(size_t size)
 {
 	if (!size)
 		return 0;
@@ -221,7 +221,7 @@ static __always_inline struct kmem_cache *kmalloc_slab(size_t size)
 }
 
 void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
-void *__kmalloc(size_t size, gfp_t flags);
+void *__kmalloc(size_t size, gfp_t flags) __alloc_size(1) __size_overflow(1);
 
 static __always_inline void *
 kmalloc_order(size_t size, gfp_t flags, unsigned int order)
@@ -265,7 +265,7 @@ kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order)
 }
 #endif
 
-static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
+static __always_inline __size_overflow(1) void *kmalloc_large(size_t size, gfp_t flags)
 {
 	unsigned int order = get_order(size);
 	return kmalloc_order_trace(size, flags, order);
@@ -290,7 +290,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags)
 }
 
 #ifdef CONFIG_NUMA
-void *__kmalloc_node(size_t size, gfp_t flags, int node);
+void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1);
 void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
 
 #ifdef CONFIG_TRACING
diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
index e8d702e..0a56eb4 100644
--- a/include/linux/sock_diag.h
+++ b/include/linux/sock_diag.h
@@ -10,7 +10,7 @@ struct sock;
 struct sock_diag_handler {
 	__u8 family;
 	int (*dump)(struct sk_buff *skb, struct nlmsghdr *nlh);
-};
+} __do_const;
 
 int sock_diag_register(const struct sock_diag_handler *h);
 void sock_diag_unregister(const struct sock_diag_handler *h);
diff --git a/include/linux/sonet.h b/include/linux/sonet.h
index 680f9a3..f13aeb0 100644
--- a/include/linux/sonet.h
+++ b/include/linux/sonet.h
@@ -7,7 +7,7 @@
 #include <uapi/linux/sonet.h>
 
 struct k_sonet_stats {
-#define __HANDLE_ITEM(i) atomic_t i
+#define __HANDLE_ITEM(i) atomic_unchecked_t i
 	__SONET_ITEMS
 #undef __HANDLE_ITEM
 };
diff --git a/include/linux/sunrpc/addr.h b/include/linux/sunrpc/addr.h
index 07d8e53..dc934c9 100644
--- a/include/linux/sunrpc/addr.h
+++ b/include/linux/sunrpc/addr.h
@@ -23,9 +23,9 @@ static inline unsigned short rpc_get_port(const struct sockaddr *sap)
 {
 	switch (sap->sa_family) {
 	case AF_INET:
-		return ntohs(((struct sockaddr_in *)sap)->sin_port);
+		return ntohs(((const struct sockaddr_in *)sap)->sin_port);
 	case AF_INET6:
-		return ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
+		return ntohs(((const struct sockaddr_in6 *)sap)->sin6_port);
 	}
 	return 0;
 }
@@ -58,7 +58,7 @@ static inline bool __rpc_cmp_addr4(const struct sockaddr *sap1,
 static inline bool __rpc_copy_addr4(struct sockaddr *dst,
 				    const struct sockaddr *src)
 {
-	const struct sockaddr_in *ssin = (struct sockaddr_in *) src;
+	const struct sockaddr_in *ssin = (const struct sockaddr_in *) src;
 	struct sockaddr_in *dsin = (struct sockaddr_in *) dst;
 
 	dsin->sin_family = ssin->sin_family;
@@ -164,7 +164,7 @@ static inline u32 rpc_get_scope_id(const struct sockaddr *sa)
 	if (sa->sa_family != AF_INET6)
 		return 0;
 
-	return ((struct sockaddr_in6 *) sa)->sin6_scope_id;
+	return ((const struct sockaddr_in6 *) sa)->sin6_scope_id;
 }
 
 #endif /* _LINUX_SUNRPC_ADDR_H */
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 2cf4ffa..470d140 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -96,7 +96,7 @@ struct rpc_procinfo {
 	unsigned int		p_timer;	/* Which RTT timer to use */
 	u32			p_statidx;	/* Which procedure to account */
 	const char *		p_name;		/* name of procedure */
-};
+} __do_const;
 
 #ifdef __KERNEL__
 
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 1f0216b..6a4fa50 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -411,7 +411,7 @@ struct svc_procedure {
 	unsigned int		pc_count;	/* call count */
 	unsigned int		pc_cachetype;	/* cache info (NFS) */
 	unsigned int		pc_xdrressize;	/* maximum size of XDR reply */
-};
+} __do_const;
 
 /*
  * Function prototypes.
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index 0b8e3e6..33e0a01 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -53,15 +53,15 @@ extern unsigned int svcrdma_ord;
 extern unsigned int svcrdma_max_requests;
 extern unsigned int svcrdma_max_req_size;
 
-extern atomic_t rdma_stat_recv;
-extern atomic_t rdma_stat_read;
-extern atomic_t rdma_stat_write;
-extern atomic_t rdma_stat_sq_starve;
-extern atomic_t rdma_stat_rq_starve;
-extern atomic_t rdma_stat_rq_poll;
-extern atomic_t rdma_stat_rq_prod;
-extern atomic_t rdma_stat_sq_poll;
-extern atomic_t rdma_stat_sq_prod;
+extern atomic_unchecked_t rdma_stat_recv;
+extern atomic_unchecked_t rdma_stat_read;
+extern atomic_unchecked_t rdma_stat_write;
+extern atomic_unchecked_t rdma_stat_sq_starve;
+extern atomic_unchecked_t rdma_stat_rq_starve;
+extern atomic_unchecked_t rdma_stat_rq_poll;
+extern atomic_unchecked_t rdma_stat_rq_prod;
+extern atomic_unchecked_t rdma_stat_sq_poll;
+extern atomic_unchecked_t rdma_stat_sq_prod;
 
 #define RPCRDMA_VERSION 1
 
diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
index ff374ab..7fd2ecb 100644
--- a/include/linux/sunrpc/svcauth.h
+++ b/include/linux/sunrpc/svcauth.h
@@ -109,7 +109,7 @@ struct auth_ops {
 	int	(*release)(struct svc_rqst *rq);
 	void	(*domain_release)(struct auth_domain *);
 	int	(*set_client)(struct svc_rqst *rq);
-};
+} __do_const;
 
 #define	SVC_GARBAGE	1
 #define	SVC_SYSERR	2
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index a5ffd32..0935dea 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -60,7 +60,8 @@ extern void
 
 extern void
 swiotlb_free_coherent(struct device *hwdev, size_t size,
-		      void *vaddr, dma_addr_t dma_handle);
+		      void *vaddr, dma_addr_t dma_handle,
+		      struct dma_attrs *attrs);
 
 extern dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
 				   unsigned long offset, size_t size,
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 313a8e0..6b273a9 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -418,11 +418,11 @@ asmlinkage long sys_sync(void);
 asmlinkage long sys_fsync(unsigned int fd);
 asmlinkage long sys_fdatasync(unsigned int fd);
 asmlinkage long sys_bdflush(int func, long data);
-asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
-				char __user *type, unsigned long flags,
+asmlinkage long sys_mount(const char __user *dev_name, const char __user *dir_name,
+				const char __user *type, unsigned long flags,
 				void __user *data);
-asmlinkage long sys_umount(char __user *name, int flags);
-asmlinkage long sys_oldumount(char __user *name);
+asmlinkage long sys_umount(const char __user *name, int flags);
+asmlinkage long sys_oldumount(const char __user *name);
 asmlinkage long sys_truncate(const char __user *path, long length);
 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
 asmlinkage long sys_stat(const char __user *filename,
@@ -634,7 +634,7 @@ asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
-				struct sockaddr __user *, int);
+				struct sockaddr __user *, int) __intentional_overflow(0);
 asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
 			     unsigned int vlen, unsigned flags);
diff --git a/include/linux/syscore_ops.h b/include/linux/syscore_ops.h
index 27b3b0b..e093dd9 100644
--- a/include/linux/syscore_ops.h
+++ b/include/linux/syscore_ops.h
@@ -16,7 +16,7 @@ struct syscore_ops {
 	int (*suspend)(void);
 	void (*resume)(void);
 	void (*shutdown)(void);
-};
+} __do_const;
 
 extern void register_syscore_ops(struct syscore_ops *ops);
 extern void unregister_syscore_ops(struct syscore_ops *ops);
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 14a8ff2..af52bad 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -34,13 +34,13 @@ struct ctl_table_root;
 struct ctl_table_header;
 struct ctl_dir;
 
-typedef struct ctl_table ctl_table;
-
 typedef int proc_handler (struct ctl_table *ctl, int write,
 			  void __user *buffer, size_t *lenp, loff_t *ppos);
 
 extern int proc_dostring(struct ctl_table *, int,
 			 void __user *, size_t *, loff_t *);
+extern int proc_dostring_modpriv(struct ctl_table *, int,
+			 void __user *, size_t *, loff_t *);
 extern int proc_dointvec(struct ctl_table *, int,
 			 void __user *, size_t *, loff_t *);
 extern int proc_dointvec_minmax(struct ctl_table *, int,
@@ -115,7 +115,9 @@ struct ctl_table
 	struct ctl_table_poll *poll;
 	void *extra1;
 	void *extra2;
-};
+} __do_const;
+typedef struct ctl_table __no_const ctl_table_no_const;
+typedef struct ctl_table ctl_table;
 
 struct ctl_node {
 	struct rb_node node;
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index e2cee22..3ddb921 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -31,7 +31,8 @@ struct attribute {
 	struct lock_class_key	*key;
 	struct lock_class_key	skey;
 #endif
-};
+} __do_const;
+typedef struct attribute __no_const attribute_no_const;
 
 /**
  *	sysfs_attr_init - initialize a dynamically allocated sysfs attribute
@@ -59,8 +60,8 @@ struct attribute_group {
 	umode_t			(*is_visible)(struct kobject *,
 					      struct attribute *, int);
 	struct attribute	**attrs;
-};
-
+} __do_const;
+typedef struct attribute_group __no_const attribute_group_no_const;
 
 
 /**
@@ -107,7 +108,8 @@ struct bin_attribute {
 			 char *, loff_t, size_t);
 	int (*mmap)(struct file *, struct kobject *, struct bin_attribute *attr,
 		    struct vm_area_struct *vma);
-};
+} __do_const;
+typedef struct bin_attribute __no_const bin_attribute_no_const;
 
 /**
  *	sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 7faf933..9b85a0c 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -16,6 +16,7 @@
 
 #include <linux/errno.h>
 #include <linux/types.h>
+#include <linux/compiler.h>
 
 /* Enable/disable SYSRQ support by default (0==no, 1==yes). */
 #define SYSRQ_DEFAULT_ENABLE	1
@@ -36,7 +37,7 @@ struct sysrq_key_op {
 	char *help_msg;
 	char *action_msg;
 	int enable_mask;
-};
+} __do_const;
 
 #ifdef CONFIG_MAGIC_SYSRQ
 
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index e7e0473..7989295 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -148,6 +148,15 @@ static inline bool test_and_clear_restore_sigmask(void)
 #error "no set_restore_sigmask() provided and default one won't work"
 #endif
 
+extern void __check_object_size(const void *ptr, unsigned long n, bool to_user);
+static inline void check_object_size(const void *ptr, unsigned long n, bool to_user)
+{
+#ifndef CONFIG_PAX_USERCOPY_DEBUG
+	if (!__builtin_constant_p(n))
+#endif
+		__check_object_size(ptr, n, to_user);
+}
+
 #endif	/* __KERNEL__ */
 
 #endif /* _LINUX_THREAD_INFO_H */
diff --git a/include/linux/tty.h b/include/linux/tty.h
index c75d886..04cb148 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -194,7 +194,7 @@ struct tty_port {
 	const struct tty_port_operations *ops;	/* Port operations */
 	spinlock_t		lock;		/* Lock protecting tty field */
 	int			blocked_open;	/* Waiting to open */
-	int			count;		/* Usage count */
+	atomic_t		count;		/* Usage count */
 	wait_queue_head_t	open_wait;	/* Open waiters */
 	wait_queue_head_t	close_wait;	/* Close waiters */
 	wait_queue_head_t	delta_msr_wait;	/* Modem status change */
@@ -515,7 +515,7 @@ extern int tty_port_open(struct tty_port *port,
 				struct tty_struct *tty, struct file *filp);
 static inline int tty_port_users(struct tty_port *port)
 {
-	return port->count + port->blocked_open;
+	return atomic_read(&port->count) + port->blocked_open;
 }
 
 extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 756a609..b302dd6 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -285,7 +285,7 @@ struct tty_operations {
 	void (*poll_put_char)(struct tty_driver *driver, int line, char ch);
 #endif
 	const struct file_operations *proc_fops;
-};
+} __do_const;
 
 struct tty_driver {
 	int	magic;		/* magic number for this structure */
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index 455a0d7..bf97ff5 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -146,7 +146,7 @@ struct tty_ldisc_ops {
 
 	struct  module *owner;
 	
-	int refcount;
+	atomic_t refcount;
 };
 
 struct tty_ldisc {
diff --git a/include/linux/types.h b/include/linux/types.h
index 4d118ba..c3ee9bf 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -176,10 +176,26 @@ typedef struct {
 	int counter;
 } atomic_t;
 
+#ifdef CONFIG_PAX_REFCOUNT
+typedef struct {
+	int counter;
+} atomic_unchecked_t;
+#else
+typedef atomic_t atomic_unchecked_t;
+#endif
+
 #ifdef CONFIG_64BIT
 typedef struct {
 	long counter;
 } atomic64_t;
+
+#ifdef CONFIG_PAX_REFCOUNT
+typedef struct {
+	long counter;
+} atomic64_unchecked_t;
+#else
+typedef atomic64_t atomic64_unchecked_t;
+#endif
 #endif
 
 struct list_head {
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index 5ca0951..ab496a5 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -76,11 +76,11 @@ static inline unsigned long __copy_from_user_nocache(void *to,
 		long ret;				\
 		mm_segment_t old_fs = get_fs();		\
 							\
-		set_fs(KERNEL_DS);			\
 		pagefault_disable();			\
-		ret = __copy_from_user_inatomic(&(retval), (__force typeof(retval) __user *)(addr), sizeof(retval));		\
-		pagefault_enable();			\
+		set_fs(KERNEL_DS);			\
+		ret = __copy_from_user_inatomic(&(retval), (typeof(retval) __force_user *)(addr), sizeof(retval));		\
 		set_fs(old_fs);				\
+		pagefault_enable();			\
 		ret;					\
 	})
 
diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h
index 8e522cbc..aa8572d 100644
--- a/include/linux/uidgid.h
+++ b/include/linux/uidgid.h
@@ -197,4 +197,9 @@ static inline bool kgid_has_mapping(struct user_namespace *ns, kgid_t gid)
 
 #endif /* CONFIG_USER_NS */
 
+#define GR_GLOBAL_UID(x) from_kuid_munged(&init_user_ns, (x))
+#define GR_GLOBAL_GID(x) from_kgid_munged(&init_user_ns, (x))
+#define gr_is_global_root(x) uid_eq((x), GLOBAL_ROOT_UID)
+#define gr_is_global_nonroot(x) (!uid_eq((x), GLOBAL_ROOT_UID))
+
 #endif /* _LINUX_UIDGID_H */
diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h
index 99c1b4d..562e6f3 100644
--- a/include/linux/unaligned/access_ok.h
+++ b/include/linux/unaligned/access_ok.h
@@ -4,34 +4,34 @@
 #include <linux/kernel.h>
 #include <asm/byteorder.h>
 
-static inline u16 get_unaligned_le16(const void *p)
+static inline u16 __intentional_overflow(-1) get_unaligned_le16(const void *p)
 {
-	return le16_to_cpup((__le16 *)p);
+	return le16_to_cpup((const __le16 *)p);
 }
 
-static inline u32 get_unaligned_le32(const void *p)
+static inline u32 __intentional_overflow(-1) get_unaligned_le32(const void *p)
 {
-	return le32_to_cpup((__le32 *)p);
+	return le32_to_cpup((const __le32 *)p);
 }
 
-static inline u64 get_unaligned_le64(const void *p)
+static inline u64 __intentional_overflow(-1) get_unaligned_le64(const void *p)
 {
-	return le64_to_cpup((__le64 *)p);
+	return le64_to_cpup((const __le64 *)p);
 }
 
-static inline u16 get_unaligned_be16(const void *p)
+static inline u16 __intentional_overflow(-1) get_unaligned_be16(const void *p)
 {
-	return be16_to_cpup((__be16 *)p);
+	return be16_to_cpup((const __be16 *)p);
 }
 
-static inline u32 get_unaligned_be32(const void *p)
+static inline u32 __intentional_overflow(-1) get_unaligned_be32(const void *p)
 {
-	return be32_to_cpup((__be32 *)p);
+	return be32_to_cpup((const __be32 *)p);
 }
 
-static inline u64 get_unaligned_be64(const void *p)
+static inline u64 __intentional_overflow(-1) get_unaligned_be64(const void *p)
 {
-	return be64_to_cpup((__be64 *)p);
+	return be64_to_cpup((const __be64 *)p);
 }
 
 static inline void put_unaligned_le16(u16 val, void *p)
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 4d22d0f..8d0e8f8 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -554,7 +554,7 @@ struct usb_device {
 	int maxchild;
 
 	u32 quirks;
-	atomic_t urbnum;
+	atomic_unchecked_t urbnum;
 
 	unsigned long active_duration;
 
@@ -1604,7 +1604,7 @@ void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in,
 
 extern int usb_control_msg(struct usb_device *dev, unsigned int pipe,
 	__u8 request, __u8 requesttype, __u16 value, __u16 index,
-	void *data, __u16 size, int timeout);
+	void *data, __u16 size, int timeout) __intentional_overflow(-1);
 extern int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
 	void *data, int len, int *actual_length, int timeout);
 extern int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index c5d36c6..108f4f9 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -39,7 +39,7 @@ enum {
  */
 struct renesas_usbhs_driver_callback {
 	int (*notify_hotplug)(struct platform_device *pdev);
-};
+} __no_const;
 
 /*
  * callback functions for platform
diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
index 6f8fbcf..8259001 100644
--- a/include/linux/vermagic.h
+++ b/include/linux/vermagic.h
@@ -25,9 +25,35 @@
 #define MODULE_ARCH_VERMAGIC ""
 #endif
 
+#ifdef CONFIG_PAX_REFCOUNT
+#define MODULE_PAX_REFCOUNT "REFCOUNT "
+#else
+#define MODULE_PAX_REFCOUNT ""
+#endif
+
+#ifdef CONSTIFY_PLUGIN
+#define MODULE_CONSTIFY_PLUGIN "CONSTIFY_PLUGIN "
+#else
+#define MODULE_CONSTIFY_PLUGIN ""
+#endif
+
+#ifdef STACKLEAK_PLUGIN
+#define MODULE_STACKLEAK_PLUGIN "STACKLEAK_PLUGIN "
+#else
+#define MODULE_STACKLEAK_PLUGIN ""
+#endif
+
+#ifdef CONFIG_GRKERNSEC
+#define MODULE_GRSEC "GRSEC "
+#else
+#define MODULE_GRSEC ""
+#endif
+
 #define VERMAGIC_STRING 						\
 	UTS_RELEASE " "							\
 	MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT 			\
 	MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS	\
-	MODULE_ARCH_VERMAGIC
+	MODULE_ARCH_VERMAGIC						\
+	MODULE_PAX_REFCOUNT MODULE_CONSTIFY_PLUGIN MODULE_STACKLEAK_PLUGIN \
+	MODULE_GRSEC
 
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 6071e91..ca6a489 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -14,6 +14,11 @@ struct vm_area_struct;		/* vma defining user mapping in mm_types.h */
 #define VM_USERMAP	0x00000008	/* suitable for remap_vmalloc_range */
 #define VM_VPAGES	0x00000010	/* buffer for pages was vmalloc'ed */
 #define VM_UNLIST	0x00000020	/* vm_struct is not listed in vmlist */
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
+#define VM_KERNEXEC	0x00000040	/* allocate from executable kernel memory range */
+#endif
+
 /* bits [20..32] reserved for arch specific ioremap internals */
 
 /*
@@ -62,7 +67,7 @@ extern void *vmalloc_32_user(unsigned long size);
 extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
 extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
-			pgprot_t prot, int node, const void *caller);
+			pgprot_t prot, int node, const void *caller) __size_overflow(1);
 extern void vfree(const void *addr);
 
 extern void *vmap(struct page **pages, unsigned int count,
@@ -124,8 +129,8 @@ extern struct vm_struct *alloc_vm_area(size_t size, pte_t **ptes);
 extern void free_vm_area(struct vm_struct *area);
 
 /* for /dev/kmem */
-extern long vread(char *buf, char *addr, unsigned long count);
-extern long vwrite(char *buf, char *addr, unsigned long count);
+extern long vread(char *buf, char *addr, unsigned long count) __size_overflow(3);
+extern long vwrite(char *buf, char *addr, unsigned long count) __size_overflow(3);
 
 /*
  *	Internals.  Dont't use..
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 5fd71a7..e5ef9a9 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -95,18 +95,18 @@ static inline void vm_events_fold_cpu(int cpu)
 /*
  * Zone based page accounting with per cpu differentials.
  */
-extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
+extern atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
 
 static inline void zone_page_state_add(long x, struct zone *zone,
 				 enum zone_stat_item item)
 {
-	atomic_long_add(x, &zone->vm_stat[item]);
-	atomic_long_add(x, &vm_stat[item]);
+	atomic_long_add_unchecked(x, &zone->vm_stat[item]);
+	atomic_long_add_unchecked(x, &vm_stat[item]);
 }
 
 static inline unsigned long global_page_state(enum zone_stat_item item)
 {
-	long x = atomic_long_read(&vm_stat[item]);
+	long x = atomic_long_read_unchecked(&vm_stat[item]);
 #ifdef CONFIG_SMP
 	if (x < 0)
 		x = 0;
@@ -117,7 +117,7 @@ static inline unsigned long global_page_state(enum zone_stat_item item)
 static inline unsigned long zone_page_state(struct zone *zone,
 					enum zone_stat_item item)
 {
-	long x = atomic_long_read(&zone->vm_stat[item]);
+	long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
 #ifdef CONFIG_SMP
 	if (x < 0)
 		x = 0;
@@ -134,7 +134,7 @@ static inline unsigned long zone_page_state(struct zone *zone,
 static inline unsigned long zone_page_state_snapshot(struct zone *zone,
 					enum zone_stat_item item)
 {
-	long x = atomic_long_read(&zone->vm_stat[item]);
+	long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
 
 #ifdef CONFIG_SMP
 	int cpu;
@@ -226,8 +226,8 @@ static inline void __mod_zone_page_state(struct zone *zone,
 
 static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
 {
-	atomic_long_inc(&zone->vm_stat[item]);
-	atomic_long_inc(&vm_stat[item]);
+	atomic_long_inc_unchecked(&zone->vm_stat[item]);
+	atomic_long_inc_unchecked(&vm_stat[item]);
 }
 
 static inline void __inc_zone_page_state(struct page *page,
@@ -238,8 +238,8 @@ static inline void __inc_zone_page_state(struct page *page,
 
 static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
 {
-	atomic_long_dec(&zone->vm_stat[item]);
-	atomic_long_dec(&vm_stat[item]);
+	atomic_long_dec_unchecked(&zone->vm_stat[item]);
+	atomic_long_dec_unchecked(&vm_stat[item]);
 }
 
 static inline void __dec_zone_page_state(struct page *page,
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index fdbafc6..49dfe4f 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -28,7 +28,7 @@ struct xattr_handler {
 		   size_t size, int handler_flags);
 	int (*set)(struct dentry *dentry, const char *name, const void *buffer,
 		   size_t size, int flags, int handler_flags);
-};
+} __do_const;
 
 struct xattr {
 	char *name;
@@ -37,6 +37,9 @@ struct xattr {
 };
 
 ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t);
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+ssize_t pax_getxattr(struct dentry *, void *, size_t);
+#endif
 ssize_t vfs_getxattr(struct dentry *, const char *, void *, size_t);
 ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size);
 int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, int);
diff --git a/include/linux/zlib.h b/include/linux/zlib.h
index 9c5a6b4..09c9438 100644
--- a/include/linux/zlib.h
+++ b/include/linux/zlib.h
@@ -31,6 +31,7 @@
 #define _ZLIB_H
 
 #include <linux/zconf.h>
+#include <linux/compiler.h>
 
 /* zlib deflate based on ZLIB_VERSION "1.1.3" */
 /* zlib inflate based on ZLIB_VERSION "1.2.3" */
@@ -179,7 +180,7 @@ typedef z_stream *z_streamp;
 
                         /* basic functions */
 
-extern int zlib_deflate_workspacesize (int windowBits, int memLevel);
+extern int zlib_deflate_workspacesize (int windowBits, int memLevel) __intentional_overflow(0);
 /*
    Returns the number of bytes that needs to be allocated for a per-
    stream workspace with the specified parameters.  A pointer to this
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 95d1c91..6798cca 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -76,7 +76,7 @@ struct v4l2_file_operations {
 	int (*mmap) (struct file *, struct vm_area_struct *);
 	int (*open) (struct file *);
 	int (*release) (struct file *);
-};
+} __do_const;
 
 /*
  * Newer version of video_device, handled by videodev2.c
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index 4118ad1..cb7e25f 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -284,7 +284,6 @@ struct v4l2_ioctl_ops {
 					bool valid_prio, int cmd, void *arg);
 };
 
-
 /* v4l debugging and diagnostics */
 
 /* Debug bitmask flags to be used on V4L2 */
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index adcbb20..62c2559 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -57,7 +57,7 @@ struct p9_trans_module {
 	int (*cancel) (struct p9_client *, struct p9_req_t *req);
 	int (*zc_request)(struct p9_client *, struct p9_req_t *,
 			  char *, char *, int , int, int, int);
-};
+} __do_const;
 
 void v9fs_register_trans(struct p9_trans_module *m);
 void v9fs_unregister_trans(struct p9_trans_module *m);
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index cdd3302..76f8ede 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -551,7 +551,7 @@ struct l2cap_ops {
 	void			(*defer) (struct l2cap_chan *chan);
 	struct sk_buff		*(*alloc_skb) (struct l2cap_chan *chan,
 					       unsigned long len, int nb);
-};
+} __do_const;
 
 struct l2cap_conn {
 	struct hci_conn		*hcon;
diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h
index 9e5425b..8136ffc 100644
--- a/include/net/caif/cfctrl.h
+++ b/include/net/caif/cfctrl.h
@@ -52,7 +52,7 @@ struct cfctrl_rsp {
 	void (*radioset_rsp)(void);
 	void (*reject_rsp)(struct cflayer *layer, u8 linkid,
 				struct cflayer *client_layer);
-};
+} __no_const;
 
 /* Link Setup Parameters for CAIF-Links. */
 struct cfctrl_link_param {
@@ -101,8 +101,8 @@ struct cfctrl_request_info {
 struct cfctrl {
 	struct cfsrvl serv;
 	struct cfctrl_rsp res;
-	atomic_t req_seq_no;
-	atomic_t rsp_seq_no;
+	atomic_unchecked_t req_seq_no;
+	atomic_unchecked_t rsp_seq_no;
 	struct list_head list;
 	/* Protects from simultaneous access to first_req list */
 	spinlock_t info_list_lock;
diff --git a/include/net/flow.h b/include/net/flow.h
index 628e11b..4c475df 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -221,6 +221,6 @@ extern struct flow_cache_object *flow_cache_lookup(
 
 extern void flow_cache_flush(void);
 extern void flow_cache_flush_deferred(void);
-extern atomic_t flow_cache_genid;
+extern atomic_unchecked_t flow_cache_genid;
 
 #endif
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index bdfbe68..4402ebe 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -118,7 +118,7 @@ struct genl_ops {
 					 struct netlink_callback *cb);
 	int		       (*done)(struct netlink_callback *cb);
 	struct list_head	ops_list;
-};
+} __do_const;
 
 extern int genl_register_family(struct genl_family *family);
 extern int genl_register_family_with_ops(struct genl_family *family,
diff --git a/include/net/gro_cells.h b/include/net/gro_cells.h
index 734d9b5..48a9a4b 100644
--- a/include/net/gro_cells.h
+++ b/include/net/gro_cells.h
@@ -29,7 +29,7 @@ static inline void gro_cells_receive(struct gro_cells *gcells, struct sk_buff *s
 		cell += skb_get_rx_queue(skb) & gcells->gro_cells_mask;
 
 	if (skb_queue_len(&cell->napi_skbs) > netdev_max_backlog) {
-		atomic_long_inc(&dev->rx_dropped);
+		atomic_long_inc_unchecked(&dev->rx_dropped);
 		kfree_skb(skb);
 		return;
 	}
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 1832927..ce39aea 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -62,7 +62,7 @@ struct inet_connection_sock_af_ops {
 	void	    (*addr2sockaddr)(struct sock *sk, struct sockaddr *);
 	int	    (*bind_conflict)(const struct sock *sk,
 				     const struct inet_bind_bucket *tb, bool relax);
-};
+} __do_const;
 
 /** inet_connection_sock - INET connection oriented sock
  *
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 53f464d..ba76aaa 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -47,8 +47,8 @@ struct inet_peer {
 	 */
 	union {
 		struct {
-			atomic_t			rid;		/* Frag reception counter */
-			atomic_t			ip_id_count;	/* IP ID for the next packet */
+			atomic_unchecked_t		rid;		/* Frag reception counter */
+			atomic_unchecked_t		ip_id_count;	/* IP ID for the next packet */
 		};
 		struct rcu_head         rcu;
 		struct inet_peer	*gc_next;
@@ -182,11 +182,11 @@ static inline int inet_getid(struct inet_peer *p, int more)
 	more++;
 	inet_peer_refcheck(p);
 	do {
-		old = atomic_read(&p->ip_id_count);
+		old = atomic_read_unchecked(&p->ip_id_count);
 		new = old + more;
 		if (!new)
 			new = 1;
-	} while (atomic_cmpxchg(&p->ip_id_count, old, new) != old);
+	} while (atomic_cmpxchg_unchecked(&p->ip_id_count, old, new) != old);
 	return new;
 }
 
diff --git a/include/net/ip.h b/include/net/ip.h
index a68f838..74518ab 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -202,7 +202,7 @@ extern struct local_ports {
 } sysctl_local_ports;
 extern void inet_get_local_port_range(int *low, int *high);
 
-extern unsigned long *sysctl_local_reserved_ports;
+extern unsigned long sysctl_local_reserved_ports[65536 / 8 / sizeof(unsigned long)];
 static inline int inet_is_reserved_local_port(int port)
 {
 	return test_bit(port, sysctl_local_reserved_ports);
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index e49db91..76a81de 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -167,7 +167,7 @@ extern __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
 
 #define FIB_RES_SADDR(net, res)				\
 	((FIB_RES_NH(res).nh_saddr_genid ==		\
-	  atomic_read(&(net)->ipv4.dev_addr_genid)) ?	\
+	  atomic_read_unchecked(&(net)->ipv4.dev_addr_genid)) ?	\
 	 FIB_RES_NH(res).nh_saddr :			\
 	 fib_info_update_nh_saddr((net), &FIB_RES_NH(res)))
 #define FIB_RES_GW(res)			(FIB_RES_NH(res).nh_gw)
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index fce8e6b..3ca4916 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -599,7 +599,7 @@ struct ip_vs_conn {
 	struct ip_vs_conn       *control;       /* Master control connection */
 	atomic_t                n_control;      /* Number of controlled ones */
 	struct ip_vs_dest       *dest;          /* real server */
-	atomic_t                in_pkts;        /* incoming packet counter */
+	atomic_unchecked_t      in_pkts;        /* incoming packet counter */
 
 	/* packet transmitter for different forwarding methods.  If it
 	   mangles the packet, it must return NF_DROP or better NF_STOLEN,
@@ -737,7 +737,7 @@ struct ip_vs_dest {
 	__be16			port;		/* port number of the server */
 	union nf_inet_addr	addr;		/* IP address of the server */
 	volatile unsigned int	flags;		/* dest status flags */
-	atomic_t		conn_flags;	/* flags to copy to conn */
+	atomic_unchecked_t	conn_flags;	/* flags to copy to conn */
 	atomic_t		weight;		/* server weight */
 
 	atomic_t		refcnt;		/* reference counter */
@@ -981,11 +981,11 @@ struct netns_ipvs {
 	/* ip_vs_lblc */
 	int			sysctl_lblc_expiration;
 	struct ctl_table_header	*lblc_ctl_header;
-	struct ctl_table	*lblc_ctl_table;
+	ctl_table_no_const	*lblc_ctl_table;
 	/* ip_vs_lblcr */
 	int			sysctl_lblcr_expiration;
 	struct ctl_table_header	*lblcr_ctl_header;
-	struct ctl_table	*lblcr_ctl_table;
+	ctl_table_no_const	*lblcr_ctl_table;
 	/* ip_vs_est */
 	struct list_head	est_list;	/* estimator list */
 	spinlock_t		est_lock;
diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h
index 80ffde3..968b0f4 100644
--- a/include/net/irda/ircomm_tty.h
+++ b/include/net/irda/ircomm_tty.h
@@ -35,6 +35,7 @@
 #include <linux/termios.h>
 #include <linux/timer.h>
 #include <linux/tty.h>		/* struct tty_struct */
+#include <asm/local.h>
 
 #include <net/irda/irias_object.h>
 #include <net/irda/ircomm_core.h>
diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
index 714cc9a..ea05f3e 100644
--- a/include/net/iucv/af_iucv.h
+++ b/include/net/iucv/af_iucv.h
@@ -149,7 +149,7 @@ struct iucv_skb_cb {
 struct iucv_sock_list {
 	struct hlist_head head;
 	rwlock_t	  lock;
-	atomic_t	  autobind_name;
+	atomic_unchecked_t autobind_name;
 };
 
 unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
diff --git a/include/net/llc_c_ac.h b/include/net/llc_c_ac.h
index df83f69..9b640b8 100644
--- a/include/net/llc_c_ac.h
+++ b/include/net/llc_c_ac.h
@@ -87,7 +87,7 @@
 #define LLC_CONN_AC_STOP_SENDACK_TMR			70
 #define LLC_CONN_AC_START_SENDACK_TMR_IF_NOT_RUNNING	71
 
-typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
+typedef int (* const llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
 
 extern int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
 extern int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
diff --git a/include/net/llc_c_ev.h b/include/net/llc_c_ev.h
index 6ca3113..f8026dd 100644
--- a/include/net/llc_c_ev.h
+++ b/include/net/llc_c_ev.h
@@ -125,8 +125,8 @@ static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb)
 	return (struct llc_conn_state_ev *)skb->cb;
 }
 
-typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
-typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
+typedef int (* const llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
+typedef int (* const llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
 
 extern int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
 extern int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
diff --git a/include/net/llc_c_st.h b/include/net/llc_c_st.h
index 0e79cfb..f46db31 100644
--- a/include/net/llc_c_st.h
+++ b/include/net/llc_c_st.h
@@ -37,7 +37,7 @@ struct llc_conn_state_trans {
 	u8		   next_state;
 	llc_conn_ev_qfyr_t *ev_qualifiers;
 	llc_conn_action_t  *ev_actions;
-};
+} __do_const;
 
 struct llc_conn_state {
 	u8			    current_state;
diff --git a/include/net/llc_s_ac.h b/include/net/llc_s_ac.h
index 37a3bbd..55a4241 100644
--- a/include/net/llc_s_ac.h
+++ b/include/net/llc_s_ac.h
@@ -23,7 +23,7 @@
 #define SAP_ACT_TEST_IND	9
 
 /* All action functions must look like this */
-typedef int (*llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
+typedef int (* const llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
 
 extern int llc_sap_action_unitdata_ind(struct llc_sap *sap,
 				       struct sk_buff *skb);
diff --git a/include/net/llc_s_st.h b/include/net/llc_s_st.h
index 567c681..cd73ac0 100644
--- a/include/net/llc_s_st.h
+++ b/include/net/llc_s_st.h
@@ -20,7 +20,7 @@ struct llc_sap_state_trans {
 	llc_sap_ev_t	  ev;
 	u8		  next_state;
 	llc_sap_action_t *ev_actions;
-};
+} __do_const;
 
 struct llc_sap_state {
 	u8			   curr_state;
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index f7eba13..91ed983 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4119,7 +4119,7 @@ struct rate_control_ops {
 	void (*add_sta_debugfs)(void *priv, void *priv_sta,
 				struct dentry *dir);
 	void (*remove_sta_debugfs)(void *priv, void *priv_sta);
-};
+} __do_const;
 
 static inline int rate_supported(struct ieee80211_sta *sta,
 				 enum ieee80211_band band,
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 7e748ad..5c6229b 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -123,7 +123,7 @@ struct neigh_ops {
 	void			(*error_report)(struct neighbour *, struct sk_buff *);
 	int			(*output)(struct neighbour *, struct sk_buff *);
 	int			(*connected_output)(struct neighbour *, struct sk_buff *);
-};
+} __do_const;
 
 struct pneigh_entry {
 	struct pneigh_entry	*next;
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index de644bc..dfbcc4c 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -115,7 +115,7 @@ struct net {
 #endif
 	struct netns_ipvs	*ipvs;
 	struct sock		*diag_nlsk;
-	atomic_t		rt_genid;
+	atomic_unchecked_t	rt_genid;
 };
 
 /*
@@ -272,7 +272,11 @@ static inline struct net *read_pnet(struct net * const *pnet)
 #define __net_init	__init
 #define __net_exit	__exit_refok
 #define __net_initdata	__initdata
+#ifdef CONSTIFY_PLUGIN
 #define __net_initconst	__initconst
+#else
+#define __net_initconst	__initdata
+#endif
 #endif
 
 struct pernet_operations {
@@ -282,7 +286,7 @@ struct pernet_operations {
 	void (*exit_batch)(struct list_head *net_exit_list);
 	int *id;
 	size_t size;
-};
+} __do_const;
 
 /*
  * Use these carefully.  If you implement a network device and it
@@ -330,12 +334,12 @@ static inline void unregister_net_sysctl_table(struct ctl_table_header *header)
 
 static inline int rt_genid(struct net *net)
 {
-	return atomic_read(&net->rt_genid);
+	return atomic_read_unchecked(&net->rt_genid);
 }
 
 static inline void rt_genid_bump(struct net *net)
 {
-	atomic_inc(&net->rt_genid);
+	atomic_inc_unchecked(&net->rt_genid);
 }
 
 #endif /* __NET_NET_NAMESPACE_H */
diff --git a/include/net/netdma.h b/include/net/netdma.h
index 8ba8ce2..99b7fff 100644
--- a/include/net/netdma.h
+++ b/include/net/netdma.h
@@ -24,7 +24,7 @@
 #include <linux/dmaengine.h>
 #include <linux/skbuff.h>
 
-int dma_skb_copy_datagram_iovec(struct dma_chan* chan,
+int __intentional_overflow(3,5) dma_skb_copy_datagram_iovec(struct dma_chan* chan,
 		struct sk_buff *skb, int offset, struct iovec *to,
 		size_t len, struct dma_pinned_list *pinned_list);
 
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 9690b0f..87aded7 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -534,7 +534,7 @@ static inline void *nlmsg_get_pos(struct sk_buff *skb)
 static inline void nlmsg_trim(struct sk_buff *skb, const void *mark)
 {
 	if (mark)
-		skb_trim(skb, (unsigned char *) mark - skb->data);
+		skb_trim(skb, (const unsigned char *) mark - skb->data);
 }
 
 /**
diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
index c9c0c53..53f24c3 100644
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -12,10 +12,10 @@ struct nf_conntrack_ecache;
 struct nf_proto_net {
 #ifdef CONFIG_SYSCTL
 	struct ctl_table_header *ctl_table_header;
-	struct ctl_table        *ctl_table;
+	ctl_table_no_const      *ctl_table;
 #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
 	struct ctl_table_header *ctl_compat_header;
-	struct ctl_table        *ctl_compat_table;
+	ctl_table_no_const      *ctl_compat_table;
 #endif
 #endif
 	unsigned int		users;
@@ -58,7 +58,7 @@ struct nf_ip_net {
 	struct nf_icmp_net	icmpv6;
 #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
 	struct ctl_table_header *ctl_table_header;
-	struct ctl_table	*ctl_table;
+	ctl_table_no_const	*ctl_table;
 #endif
 };
 
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 2ba9de8..47bd6c7 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -67,7 +67,7 @@ struct netns_ipv4 {
 	kgid_t sysctl_ping_group_range[2];
 	long sysctl_tcp_mem[3];
 
-	atomic_t dev_addr_genid;
+	atomic_unchecked_t	dev_addr_genid;
 
 #ifdef CONFIG_IP_MROUTE
 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
diff --git a/include/net/protocol.h b/include/net/protocol.h
index 047c047..b9dad15 100644
--- a/include/net/protocol.h
+++ b/include/net/protocol.h
@@ -44,7 +44,7 @@ struct net_protocol {
 	void			(*err_handler)(struct sk_buff *skb, u32 info);
 	unsigned int		no_policy:1,
 				netns_ok:1;
-};
+} __do_const;
 
 #if IS_ENABLED(CONFIG_IPV6)
 struct inet6_protocol {
@@ -57,7 +57,7 @@ struct inet6_protocol {
 			       u8 type, u8 code, int offset,
 			       __be32 info);
 	unsigned int	flags;	/* INET6_PROTO_xxx */
-};
+} __do_const;
 
 #define INET6_PROTO_NOPOLICY	0x1
 #define INET6_PROTO_FINAL	0x2
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index 5a15fab..d799ea7 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -81,7 +81,7 @@ struct rtnl_link_ops {
 					       const struct net_device *dev);
 	unsigned int		(*get_num_tx_queues)(void);
 	unsigned int		(*get_num_rx_queues)(void);
-};
+} __do_const;
 
 extern int	__rtnl_link_register(struct rtnl_link_ops *ops);
 extern void	__rtnl_link_unregister(struct rtnl_link_ops *ops);
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index df85a0c..19ac300 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -330,9 +330,9 @@ do {									\
 
 #else	/* SCTP_DEBUG */
 
-#define SCTP_DEBUG_PRINTK(whatever...)
-#define SCTP_DEBUG_PRINTK_CONT(fmt, args...)
-#define SCTP_DEBUG_PRINTK_IPADDR(whatever...)
+#define SCTP_DEBUG_PRINTK(whatever...) do {} while (0)
+#define SCTP_DEBUG_PRINTK_CONT(fmt, args...) do {} while (0)
+#define SCTP_DEBUG_PRINTK_IPADDR(whatever...) do {} while (0)
 #define SCTP_ENABLE_DEBUG
 #define SCTP_DISABLE_DEBUG
 #define SCTP_ASSERT(expr, str, func)
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index 2a82d13..62a31c2 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -87,7 +87,7 @@ typedef void (sctp_timer_event_t) (unsigned long);
 typedef struct {
 	sctp_state_fn_t *fn;
 	const char *name;
-} sctp_sm_table_entry_t;
+} __do_const sctp_sm_table_entry_t;
 
 /* A naming convention of "sctp_sf_xxx" applies to all the state functions
  * currently in use.
@@ -299,7 +299,7 @@ __u32 sctp_generate_tag(const struct sctp_endpoint *);
 __u32 sctp_generate_tsn(const struct sctp_endpoint *);
 
 /* Extern declarations for major data structures.  */
-extern sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
+extern sctp_timer_event_t * const sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
 
 
 /* Get the size of a DATA chunk payload. */
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 0e0f9d2..cd05ebb 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -517,7 +517,7 @@ struct sctp_pf {
 					  struct sctp_association *asoc);
 	void (*addr_v4map) (struct sctp_sock *, union sctp_addr *);
 	struct sctp_af *af;
-};
+} __do_const;
 
 
 /* Structure to track chunk fragments that have been acked, but peer
diff --git a/include/net/secure_seq.h b/include/net/secure_seq.h
index c2e542b..6ca975b 100644
--- a/include/net/secure_seq.h
+++ b/include/net/secure_seq.h
@@ -3,6 +3,7 @@
 
 #include <linux/types.h>
 
+extern void net_secret_init(void);
 extern __u32 secure_ip_id(__be32 daddr);
 extern __u32 secure_ipv6_id(const __be32 daddr[4]);
 extern u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
diff --git a/include/net/sock.h b/include/net/sock.h
index 0be480a..586232f 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -325,7 +325,7 @@ struct sock {
 #ifdef CONFIG_RPS
 	__u32			sk_rxhash;
 #endif
-	atomic_t		sk_drops;
+	atomic_unchecked_t	sk_drops;
 	int			sk_rcvbuf;
 
 	struct sk_filter __rcu	*sk_filter;
@@ -1796,7 +1796,7 @@ static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags)
 }
 
 static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb,
-					   char __user *from, char *to,
+					   char __user *from, unsigned char *to,
 					   int copy, int offset)
 {
 	if (skb->ip_summed == CHECKSUM_NONE) {
@@ -2055,7 +2055,7 @@ static inline void sk_stream_moderate_sndbuf(struct sock *sk)
 	}
 }
 
-struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp);
+struct sk_buff * __intentional_overflow(0) sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp);
 
 /**
  * sk_page_frag - return an appropriate page_frag
diff --git a/include/net/tcp.h b/include/net/tcp.h
index a345480..3c65cf4 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -529,7 +529,7 @@ extern void tcp_retransmit_timer(struct sock *sk);
 extern void tcp_xmit_retransmit_queue(struct sock *);
 extern void tcp_simple_retransmit(struct sock *);
 extern int tcp_trim_head(struct sock *, struct sk_buff *, u32);
-extern int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int);
+extern int __intentional_overflow(3) tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int);
 
 extern void tcp_send_probe0(struct sock *);
 extern void tcp_send_partial(struct sock *);
@@ -700,8 +700,8 @@ struct tcp_skb_cb {
 		struct inet6_skb_parm	h6;
 #endif
 	} header;	/* For incoming frames		*/
-	__u32		seq;		/* Starting sequence number	*/
-	__u32		end_seq;	/* SEQ + FIN + SYN + datalen	*/
+	__u32		seq __intentional_overflow(0);	/* Starting sequence number	*/
+	__u32		end_seq __intentional_overflow(0);	/* SEQ + FIN + SYN + datalen	*/
 	__u32		when;		/* used to compute rtt's	*/
 	__u8		tcp_flags;	/* TCP header flags. (tcp[13])	*/
 
@@ -715,7 +715,7 @@ struct tcp_skb_cb {
 
 	__u8		ip_dsfield;	/* IPv4 tos or IPv6 dsfield	*/
 	/* 1 byte hole */
-	__u32		ack_seq;	/* Sequence number ACK'd	*/
+	__u32		ack_seq __intentional_overflow(0);	/* Sequence number ACK'd	*/
 };
 
 #define TCP_SKB_CB(__skb)	((struct tcp_skb_cb *)&((__skb)->cb[0]))
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 24c8886..e6fb816 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -304,7 +304,7 @@ struct xfrm_policy_afinfo {
 					    struct net_device *dev,
 					    const struct flowi *fl);
 	struct dst_entry	*(*blackhole_route)(struct net *net, struct dst_entry *orig);
-};
+} __do_const;
 
 extern int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
 extern int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
@@ -340,7 +340,7 @@ struct xfrm_state_afinfo {
 						  struct sk_buff *skb);
 	int			(*transport_finish)(struct sk_buff *skb,
 						    int async);
-};
+} __do_const;
 
 extern int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo);
 extern int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
@@ -423,7 +423,7 @@ struct xfrm_mode {
 	struct module *owner;
 	unsigned int encap;
 	int flags;
-};
+} __do_const;
 
 /* Flags for xfrm_mode. */
 enum {
@@ -520,7 +520,7 @@ struct xfrm_policy {
 	struct timer_list	timer;
 
 	struct flow_cache_object flo;
-	atomic_t		genid;
+	atomic_unchecked_t	genid;
 	u32			priority;
 	u32			index;
 	struct xfrm_mark	mark;
diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h
index 1a046b1..ee0bef0 100644
--- a/include/rdma/iw_cm.h
+++ b/include/rdma/iw_cm.h
@@ -122,7 +122,7 @@ struct iw_cm_verbs {
 					 int backlog);
 
 	int		(*destroy_listen)(struct iw_cm_id *cm_id);
-};
+} __no_const;
 
 /**
  * iw_create_cm_id - Create an IW CM identifier.
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index e1379b4..67eafbe 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -762,6 +762,7 @@ struct libfc_function_template {
 	 */
 	void (*disc_stop_final) (struct fc_lport *);
 };
+typedef struct libfc_function_template __no_const libfc_function_template_no_const;
 
 /**
  * struct fc_disc - Discovery context
@@ -866,7 +867,7 @@ struct fc_lport {
 	struct fc_vport		       *vport;
 
 	/* Operational Information */
-	struct libfc_function_template tt;
+	libfc_function_template_no_const tt;
 	u8			       link_up;
 	u8			       qfull;
 	enum fc_lport_state	       state;
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index a7f9cba..b1f44d0 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -171,9 +171,9 @@ struct scsi_device {
 	unsigned int max_device_blocked; /* what device_blocked counts down from  */
 #define SCSI_DEFAULT_DEVICE_BLOCKED	3
 
-	atomic_t iorequest_cnt;
-	atomic_t iodone_cnt;
-	atomic_t ioerr_cnt;
+	atomic_unchecked_t iorequest_cnt;
+	atomic_unchecked_t iodone_cnt;
+	atomic_unchecked_t ioerr_cnt;
 
 	struct device		sdev_gendev,
 				sdev_dev;
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index b797e8f..8e2c3aa 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -751,7 +751,8 @@ struct fc_function_template {
 	unsigned long	show_host_system_hostname:1;
 
 	unsigned long	disable_target_scan:1;
-};
+} __do_const;
+typedef struct fc_function_template __no_const fc_function_template_no_const;
 
 
 /**
diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
index ff6c741..393815f 100644
--- a/include/sound/compress_driver.h
+++ b/include/sound/compress_driver.h
@@ -130,7 +130,7 @@ struct snd_compr_ops {
 			struct snd_compr_caps *caps);
 	int (*get_codec_caps) (struct snd_compr_stream *stream,
 			struct snd_compr_codec_caps *codec);
-};
+} __no_const;
 
 /**
  * struct snd_compr: Compressed device
diff --git a/include/sound/soc.h b/include/sound/soc.h
index a6a059c..2243336 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -771,7 +771,7 @@ struct snd_soc_codec_driver {
 	/* probe ordering - for components with runtime dependencies */
 	int probe_order;
 	int remove_order;
-};
+} __do_const;
 
 /* SoC platform interface */
 struct snd_soc_platform_driver {
@@ -817,7 +817,7 @@ struct snd_soc_platform_driver {
 	unsigned int (*read)(struct snd_soc_platform *, unsigned int);
 	int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
 	int (*bespoke_trigger)(struct snd_pcm_substream *, int);
-};
+} __do_const;
 
 struct snd_soc_platform {
 	const char *name;
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index c4af592..20c52d2 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -657,7 +657,7 @@ struct se_device {
 	spinlock_t		stats_lock;
 	/* Active commands on this virtual SE device */
 	atomic_t		simple_cmds;
-	atomic_t		dev_ordered_id;
+	atomic_unchecked_t	dev_ordered_id;
 	atomic_t		dev_ordered_sync;
 	atomic_t		dev_qf_count;
 	int			export_count;
diff --git a/include/trace/events/fs.h b/include/trace/events/fs.h
new file mode 100644
index 0000000..fb634b7
--- /dev/null
+++ b/include/trace/events/fs.h
@@ -0,0 +1,53 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM fs
+
+#if !defined(_TRACE_FS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_FS_H
+
+#include <linux/fs.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(do_sys_open,
+
+	TP_PROTO(const char *filename, int flags, int mode),
+
+	TP_ARGS(filename, flags, mode),
+
+	TP_STRUCT__entry(
+		__string(	filename, filename		)
+		__field(	int, flags			)
+		__field(	int, mode			)
+	),
+
+	TP_fast_assign(
+		__assign_str(filename, filename);
+		__entry->flags = flags;
+		__entry->mode = mode;
+	),
+
+	TP_printk("\"%s\" %x %o",
+		  __get_str(filename), __entry->flags, __entry->mode)
+);
+
+TRACE_EVENT(open_exec,
+
+	TP_PROTO(const char *filename),
+
+	TP_ARGS(filename),
+
+	TP_STRUCT__entry(
+		__string(	filename, filename		)
+	),
+
+	TP_fast_assign(
+		__assign_str(filename, filename);
+	),
+
+	TP_printk("\"%s\"",
+		  __get_str(filename))
+);
+
+#endif /* _TRACE_FS_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
index 1c09820..7f5ec79 100644
--- a/include/trace/events/irq.h
+++ b/include/trace/events/irq.h
@@ -36,7 +36,7 @@ struct softirq_action;
  */
 TRACE_EVENT(irq_handler_entry,
 
-	TP_PROTO(int irq, struct irqaction *action),
+	TP_PROTO(int irq, const struct irqaction *action),
 
 	TP_ARGS(irq, action),
 
@@ -66,7 +66,7 @@ TRACE_EVENT(irq_handler_entry,
  */
 TRACE_EVENT(irq_handler_exit,
 
-	TP_PROTO(int irq, struct irqaction *action, int ret),
+	TP_PROTO(int irq, const struct irqaction *action, int ret),
 
 	TP_ARGS(irq, action, ret),
 
diff --git a/include/uapi/linux/a.out.h b/include/uapi/linux/a.out.h
index 7caf44c..23c6f27 100644
--- a/include/uapi/linux/a.out.h
+++ b/include/uapi/linux/a.out.h
@@ -39,6 +39,14 @@ enum machine_type {
   M_MIPS2 = 152		/* MIPS R6000/R4000 binary */
 };
 
+/* Constants for the N_FLAGS field */
+#define F_PAX_PAGEEXEC	1	/* Paging based non-executable pages */
+#define F_PAX_EMUTRAMP	2	/* Emulate trampolines */
+#define F_PAX_MPROTECT	4	/* Restrict mprotect() */
+#define F_PAX_RANDMMAP	8	/* Randomize mmap() base */
+/*#define F_PAX_RANDEXEC	16*/	/* Randomize ET_EXEC base */
+#define F_PAX_SEGMEXEC	32	/* Segmentation based non-executable pages */
+
 #if !defined (N_MAGIC)
 #define N_MAGIC(exec) ((exec).a_info & 0xffff)
 #endif
diff --git a/include/uapi/linux/byteorder/little_endian.h b/include/uapi/linux/byteorder/little_endian.h
index d876736..ccce5c0 100644
--- a/include/uapi/linux/byteorder/little_endian.h
+++ b/include/uapi/linux/byteorder/little_endian.h
@@ -42,51 +42,51 @@
 
 static inline __le64 __cpu_to_le64p(const __u64 *p)
 {
-	return (__force __le64)*p;
+	return (__force const __le64)*p;
 }
-static inline __u64 __le64_to_cpup(const __le64 *p)
+static inline __u64 __intentional_overflow(-1) __le64_to_cpup(const __le64 *p)
 {
-	return (__force __u64)*p;
+	return (__force const __u64)*p;
 }
 static inline __le32 __cpu_to_le32p(const __u32 *p)
 {
-	return (__force __le32)*p;
+	return (__force const __le32)*p;
 }
 static inline __u32 __le32_to_cpup(const __le32 *p)
 {
-	return (__force __u32)*p;
+	return (__force const __u32)*p;
 }
 static inline __le16 __cpu_to_le16p(const __u16 *p)
 {
-	return (__force __le16)*p;
+	return (__force const __le16)*p;
 }
 static inline __u16 __le16_to_cpup(const __le16 *p)
 {
-	return (__force __u16)*p;
+	return (__force const __u16)*p;
 }
 static inline __be64 __cpu_to_be64p(const __u64 *p)
 {
-	return (__force __be64)__swab64p(p);
+	return (__force const __be64)__swab64p(p);
 }
 static inline __u64 __be64_to_cpup(const __be64 *p)
 {
-	return __swab64p((__u64 *)p);
+	return __swab64p((const __u64 *)p);
 }
 static inline __be32 __cpu_to_be32p(const __u32 *p)
 {
-	return (__force __be32)__swab32p(p);
+	return (__force const __be32)__swab32p(p);
 }
-static inline __u32 __be32_to_cpup(const __be32 *p)
+static inline __u32 __intentional_overflow(-1) __be32_to_cpup(const __be32 *p)
 {
-	return __swab32p((__u32 *)p);
+	return __swab32p((const __u32 *)p);
 }
 static inline __be16 __cpu_to_be16p(const __u16 *p)
 {
-	return (__force __be16)__swab16p(p);
+	return (__force const __be16)__swab16p(p);
 }
 static inline __u16 __be16_to_cpup(const __be16 *p)
 {
-	return __swab16p((__u16 *)p);
+	return __swab16p((const __u16 *)p);
 }
 #define __cpu_to_le64s(x) do { (void)(x); } while (0)
 #define __le64_to_cpus(x) do { (void)(x); } while (0)
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index 8072d35..e77aeb8 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -37,6 +37,17 @@ typedef __s64	Elf64_Sxword;
 #define PT_GNU_EH_FRAME		0x6474e550
 
 #define PT_GNU_STACK	(PT_LOOS + 0x474e551)
+#define PT_GNU_RELRO	(PT_LOOS + 0x474e552)
+
+#define PT_PAX_FLAGS	(PT_LOOS + 0x5041580)
+
+/* Constants for the e_flags field */
+#define EF_PAX_PAGEEXEC		1	/* Paging based non-executable pages */
+#define EF_PAX_EMUTRAMP		2	/* Emulate trampolines */
+#define EF_PAX_MPROTECT		4	/* Restrict mprotect() */
+#define EF_PAX_RANDMMAP		8	/* Randomize mmap() base */
+/*#define EF_PAX_RANDEXEC		16*/	/* Randomize ET_EXEC base */
+#define EF_PAX_SEGMEXEC		32	/* Segmentation based non-executable pages */
 
 /*
  * Extended Numbering
@@ -94,6 +105,8 @@ typedef __s64	Elf64_Sxword;
 #define DT_DEBUG	21
 #define DT_TEXTREL	22
 #define DT_JMPREL	23
+#define DT_FLAGS	30
+  #define DF_TEXTREL  0x00000004
 #define DT_ENCODING	32
 #define OLD_DT_LOOS	0x60000000
 #define DT_LOOS		0x6000000d
@@ -240,6 +253,19 @@ typedef struct elf64_hdr {
 #define PF_W		0x2
 #define PF_X		0x1
 
+#define PF_PAGEEXEC	(1U << 4)	/* Enable  PAGEEXEC */
+#define PF_NOPAGEEXEC	(1U << 5)	/* Disable PAGEEXEC */
+#define PF_SEGMEXEC	(1U << 6)	/* Enable  SEGMEXEC */
+#define PF_NOSEGMEXEC	(1U << 7)	/* Disable SEGMEXEC */
+#define PF_MPROTECT	(1U << 8)	/* Enable  MPROTECT */
+#define PF_NOMPROTECT	(1U << 9)	/* Disable MPROTECT */
+/*#define PF_RANDEXEC	(1U << 10)*/	/* Enable  RANDEXEC */
+/*#define PF_NORANDEXEC	(1U << 11)*/	/* Disable RANDEXEC */
+#define PF_EMUTRAMP	(1U << 12)	/* Enable  EMUTRAMP */
+#define PF_NOEMUTRAMP	(1U << 13)	/* Disable EMUTRAMP */
+#define PF_RANDMMAP	(1U << 14)	/* Enable  RANDMMAP */
+#define PF_NORANDMMAP	(1U << 15)	/* Disable RANDMMAP */
+
 typedef struct elf32_phdr{
   Elf32_Word	p_type;
   Elf32_Off	p_offset;
@@ -332,6 +358,8 @@ typedef struct elf64_shdr {
 #define	EI_OSABI	7
 #define	EI_PAD		8
 
+#define	EI_PAX		14
+
 #define	ELFMAG0		0x7f		/* EI_MAG */
 #define	ELFMAG1		'E'
 #define	ELFMAG2		'L'
diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h
index aa169c4..6a2771d 100644
--- a/include/uapi/linux/personality.h
+++ b/include/uapi/linux/personality.h
@@ -30,6 +30,7 @@ enum {
 #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC  | \
 			    ADDR_NO_RANDOMIZE  | \
 			    ADDR_COMPAT_LAYOUT | \
+			    ADDR_LIMIT_3GB     | \
 			    MMAP_PAGE_ZERO)
 
 /*
diff --git a/include/uapi/linux/screen_info.h b/include/uapi/linux/screen_info.h
index 7530e74..e714828 100644
--- a/include/uapi/linux/screen_info.h
+++ b/include/uapi/linux/screen_info.h
@@ -43,7 +43,8 @@ struct screen_info {
 	__u16 pages;		/* 0x32 */
 	__u16 vesa_attributes;	/* 0x34 */
 	__u32 capabilities;     /* 0x36 */
-	__u8  _reserved[6];	/* 0x3a */
+	__u16 vesapm_size;	/* 0x3a */
+	__u8  _reserved[4];	/* 0x3c */
 } __attribute__((packed));
 
 #define VIDEO_TYPE_MDA		0x10	/* Monochrome Text Display	*/
diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
index 0e011eb..82681b1 100644
--- a/include/uapi/linux/swab.h
+++ b/include/uapi/linux/swab.h
@@ -43,7 +43,7 @@
  * ___swab16, ___swab32, ___swab64, ___swahw32, ___swahb32
  */
 
-static inline __attribute_const__ __u16 __fswab16(__u16 val)
+static inline __intentional_overflow(-1) __attribute_const__ __u16 __fswab16(__u16 val)
 {
 #ifdef __HAVE_BUILTIN_BSWAP16__
 	return __builtin_bswap16(val);
@@ -54,7 +54,7 @@ static inline __attribute_const__ __u16 __fswab16(__u16 val)
 #endif
 }
 
-static inline __attribute_const__ __u32 __fswab32(__u32 val)
+static inline __intentional_overflow(-1) __attribute_const__ __u32 __fswab32(__u32 val)
 {
 #ifdef __HAVE_BUILTIN_BSWAP32__
 	return __builtin_bswap32(val);
@@ -65,7 +65,7 @@ static inline __attribute_const__ __u32 __fswab32(__u32 val)
 #endif
 }
 
-static inline __attribute_const__ __u64 __fswab64(__u64 val)
+static inline __intentional_overflow(-1) __attribute_const__ __u64 __fswab64(__u64 val)
 {
 #ifdef __HAVE_BUILTIN_BSWAP64__
 	return __builtin_bswap64(val);
diff --git a/include/uapi/linux/sysctl.h b/include/uapi/linux/sysctl.h
index 6d67213..8dab561 100644
--- a/include/uapi/linux/sysctl.h
+++ b/include/uapi/linux/sysctl.h
@@ -155,7 +155,11 @@ enum
 	KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
 };
 
-
+#ifdef CONFIG_PAX_SOFTMODE
+enum {
+	PAX_SOFTMODE=1		/* PaX: disable/enable soft mode */
+};
+#endif
 
 /* CTL_VM names: */
 enum
diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
index e4629b9..6958086 100644
--- a/include/uapi/linux/xattr.h
+++ b/include/uapi/linux/xattr.h
@@ -63,5 +63,9 @@
 #define XATTR_POSIX_ACL_DEFAULT  "posix_acl_default"
 #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT
 
+/* User namespace */
+#define XATTR_PAX_PREFIX XATTR_USER_PREFIX "pax."
+#define XATTR_PAX_FLAGS_SUFFIX "flags"
+#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX
 
 #endif /* _UAPI_LINUX_XATTR_H */
diff --git a/include/video/udlfb.h b/include/video/udlfb.h
index f9466fa..f4e2b81 100644
--- a/include/video/udlfb.h
+++ b/include/video/udlfb.h
@@ -53,10 +53,10 @@ struct dlfb_data {
 	u32 pseudo_palette[256];
 	int blank_mode; /*one of FB_BLANK_ */
 	/* blit-only rendering path metrics, exposed through sysfs */
-	atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
-	atomic_t bytes_identical; /* saved effort with backbuffer comparison */
-	atomic_t bytes_sent; /* to usb, after compression including overhead */
-	atomic_t cpu_kcycles_used; /* transpired during pixel processing */
+	atomic_unchecked_t bytes_rendered; /* raw pixel-bytes driver asked to render */
+	atomic_unchecked_t bytes_identical; /* saved effort with backbuffer comparison */
+	atomic_unchecked_t bytes_sent; /* to usb, after compression including overhead */
+	atomic_unchecked_t cpu_kcycles_used; /* transpired during pixel processing */
 };
 
 #define NR_USB_REQUEST_I2C_SUB_IO 0x02
diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h
index 1a91850..28573f8 100644
--- a/include/video/uvesafb.h
+++ b/include/video/uvesafb.h
@@ -122,6 +122,7 @@ struct uvesafb_par {
 	u8 ypan;			/* 0 - nothing, 1 - ypan, 2 - ywrap */
 	u8 pmi_setpal;			/* PMI for palette changes */
 	u16 *pmi_base;			/* protected mode interface location */
+	u8 *pmi_code;			/* protected mode code location */
 	void *pmi_start;
 	void *pmi_pal;
 	u8 *vbe_state_orig;		/*
diff --git a/init/Kconfig b/init/Kconfig
index 5341d72..153f24f 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -984,6 +984,7 @@ endif # CGROUPS
 
 config CHECKPOINT_RESTORE
 	bool "Checkpoint/restore support" if EXPERT
+	depends on !GRKERNSEC
 	default n
 	help
 	  Enables additional kernel features in a sake of checkpoint/restore.
@@ -1471,7 +1472,7 @@ config SLUB_DEBUG
 
 config COMPAT_BRK
 	bool "Disable heap randomization"
-	default y
+	default n
 	help
 	  Randomizing heap placement makes heap exploits harder, but it
 	  also breaks ancient binaries (including anything libc5 based).
@@ -1734,7 +1735,7 @@ config INIT_ALL_POSSIBLE
 config STOP_MACHINE
 	bool
 	default y
-	depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU
+	depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU || GRKERNSEC
 	help
 	  Need stop_machine() primitive.
 
diff --git a/init/Makefile b/init/Makefile
index 7bc47ee..6da2dc7 100644
--- a/init/Makefile
+++ b/init/Makefile
@@ -2,6 +2,9 @@
 # Makefile for the linux kernel.
 #
 
+ccflags-y := $(GCC_PLUGINS_CFLAGS)
+asflags-y := $(GCC_PLUGINS_AFLAGS)
+
 obj-y                          := main.o version.o mounts.o
 ifneq ($(CONFIG_BLK_DEV_INITRD),y)
 obj-y                          += noinitramfs.o
diff --git a/init/do_mounts.c b/init/do_mounts.c
index a2b49f2..03a0e17c 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -355,11 +355,11 @@ static void __init get_fs_names(char *page)
 static int __init do_mount_root(char *name, char *fs, int flags, void *data)
 {
 	struct super_block *s;
-	int err = sys_mount(name, "/root", fs, flags, data);
+	int err = sys_mount((char __force_user *)name, (char __force_user *)"/root", (char __force_user *)fs, flags, (void __force_user *)data);
 	if (err)
 		return err;
 
-	sys_chdir("/root");
+	sys_chdir((const char __force_user *)"/root");
 	s = current->fs->pwd.dentry->d_sb;
 	ROOT_DEV = s->s_dev;
 	printk(KERN_INFO
@@ -480,18 +480,18 @@ void __init change_floppy(char *fmt, ...)
 	va_start(args, fmt);
 	vsprintf(buf, fmt, args);
 	va_end(args);
-	fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0);
+	fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0);
 	if (fd >= 0) {
 		sys_ioctl(fd, FDEJECT, 0);
 		sys_close(fd);
 	}
 	printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
-	fd = sys_open("/dev/console", O_RDWR, 0);
+	fd = sys_open((__force const char __user *)"/dev/console", O_RDWR, 0);
 	if (fd >= 0) {
 		sys_ioctl(fd, TCGETS, (long)&termios);
 		termios.c_lflag &= ~ICANON;
 		sys_ioctl(fd, TCSETSF, (long)&termios);
-		sys_read(fd, &c, 1);
+		sys_read(fd, (char __user *)&c, 1);
 		termios.c_lflag |= ICANON;
 		sys_ioctl(fd, TCSETSF, (long)&termios);
 		sys_close(fd);
@@ -585,6 +585,6 @@ void __init prepare_namespace(void)
 	mount_root();
 out:
 	devtmpfs_mount("dev");
-	sys_mount(".", "/", NULL, MS_MOVE, NULL);
-	sys_chroot(".");
+	sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
+	sys_chroot((const char __force_user *)".");
 }
diff --git a/init/do_mounts.h b/init/do_mounts.h
index f5b978a..69dbfe8 100644
--- a/init/do_mounts.h
+++ b/init/do_mounts.h
@@ -15,15 +15,15 @@ extern int root_mountflags;
 
 static inline int create_dev(char *name, dev_t dev)
 {
-	sys_unlink(name);
-	return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
+	sys_unlink((char __force_user *)name);
+	return sys_mknod((char __force_user *)name, S_IFBLK|0600, new_encode_dev(dev));
 }
 
 #if BITS_PER_LONG == 32
 static inline u32 bstat(char *name)
 {
 	struct stat64 stat;
-	if (sys_stat64(name, &stat) != 0)
+	if (sys_stat64((char __force_user *)name, (struct stat64 __force_user *)&stat) != 0)
 		return 0;
 	if (!S_ISBLK(stat.st_mode))
 		return 0;
@@ -35,7 +35,7 @@ static inline u32 bstat(char *name)
 static inline u32 bstat(char *name)
 {
 	struct stat stat;
-	if (sys_newstat(name, &stat) != 0)
+	if (sys_newstat((const char __force_user *)name, (struct stat __force_user *)&stat) != 0)
 		return 0;
 	if (!S_ISBLK(stat.st_mode))
 		return 0;
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index a32ec1c..60a6659 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -37,13 +37,13 @@ static int init_linuxrc(struct subprocess_info *info, struct cred *new)
 {
 	sys_unshare(CLONE_FS | CLONE_FILES);
 	/* stdin/stdout/stderr for /linuxrc */
-	sys_open("/dev/console", O_RDWR, 0);
+	sys_open((const char __force_user *)"/dev/console", O_RDWR, 0);
 	sys_dup(0);
 	sys_dup(0);
 	/* move initrd over / and chdir/chroot in initrd root */
-	sys_chdir("/root");
-	sys_mount(".", "/", NULL, MS_MOVE, NULL);
-	sys_chroot(".");
+	sys_chdir((const char __force_user *)"/root");
+	sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
+	sys_chroot((const char __force_user *)".");
 	sys_setsid();
 	return 0;
 }
@@ -58,8 +58,8 @@ static void __init handle_initrd(void)
 	create_dev("/dev/root.old", Root_RAM0);
 	/* mount initrd on rootfs' /root */
 	mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
-	sys_mkdir("/old", 0700);
-	sys_chdir("/old");
+	sys_mkdir((const char __force_user *)"/old", 0700);
+	sys_chdir((const char __force_user *)"/old");
 
 	/* try loading default modules from initrd */
 	load_default_modules();
@@ -76,31 +76,31 @@ static void __init handle_initrd(void)
 	current->flags &= ~PF_FREEZER_SKIP;
 
 	/* move initrd to rootfs' /old */
-	sys_mount("..", ".", NULL, MS_MOVE, NULL);
+	sys_mount((char __force_user *)"..", (char __force_user *)".", NULL, MS_MOVE, NULL);
 	/* switch root and cwd back to / of rootfs */
-	sys_chroot("..");
+	sys_chroot((const char __force_user *)"..");
 
 	if (new_decode_dev(real_root_dev) == Root_RAM0) {
-		sys_chdir("/old");
+		sys_chdir((const char __force_user *)"/old");
 		return;
 	}
 
-	sys_chdir("/");
+	sys_chdir((const char __force_user *)"/");
 	ROOT_DEV = new_decode_dev(real_root_dev);
 	mount_root();
 
 	printk(KERN_NOTICE "Trying to move old root to /initrd ... ");
-	error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL);
+	error = sys_mount((char __force_user *)"/old", (char __force_user *)"/root/initrd", NULL, MS_MOVE, NULL);
 	if (!error)
 		printk("okay\n");
 	else {
-		int fd = sys_open("/dev/root.old", O_RDWR, 0);
+		int fd = sys_open((const char __force_user *)"/dev/root.old", O_RDWR, 0);
 		if (error == -ENOENT)
 			printk("/initrd does not exist. Ignored.\n");
 		else
 			printk("failed\n");
 		printk(KERN_NOTICE "Unmounting old root\n");
-		sys_umount("/old", MNT_DETACH);
+		sys_umount((char __force_user *)"/old", MNT_DETACH);
 		printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
 		if (fd < 0) {
 			error = fd;
@@ -123,11 +123,11 @@ int __init initrd_load(void)
 		 * mounted in the normal path.
 		 */
 		if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) {
-			sys_unlink("/initrd.image");
+			sys_unlink((const char __force_user *)"/initrd.image");
 			handle_initrd();
 			return 1;
 		}
 	}
-	sys_unlink("/initrd.image");
+	sys_unlink((const char __force_user *)"/initrd.image");
 	return 0;
 }
diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
index 8cb6db5..d729f50 100644
--- a/init/do_mounts_md.c
+++ b/init/do_mounts_md.c
@@ -180,7 +180,7 @@ static void __init md_setup_drive(void)
 			partitioned ? "_d" : "", minor,
 			md_setup_args[ent].device_names);
 
-		fd = sys_open(name, 0, 0);
+		fd = sys_open((char __force_user *)name, 0, 0);
 		if (fd < 0) {
 			printk(KERN_ERR "md: open failed - cannot start "
 					"array %s\n", name);
@@ -243,7 +243,7 @@ static void __init md_setup_drive(void)
 			 * array without it
 			 */
 			sys_close(fd);
-			fd = sys_open(name, 0, 0);
+			fd = sys_open((char __force_user *)name, 0, 0);
 			sys_ioctl(fd, BLKRRPART, 0);
 		}
 		sys_close(fd);
@@ -293,7 +293,7 @@ static void __init autodetect_raid(void)
 
 	wait_for_device_probe();
 
-	fd = sys_open("/dev/md0", 0, 0);
+	fd = sys_open((const char __force_user *) "/dev/md0", 0, 0);
 	if (fd >= 0) {
 		sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
 		sys_close(fd);
diff --git a/init/init_task.c b/init/init_task.c
index ba0a7f36..2bcf1d5 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -22,5 +22,9 @@ EXPORT_SYMBOL(init_task);
  * Initial thread structure. Alignment of this is handled by a special
  * linker map entry.
  */
+#ifdef CONFIG_X86
+union thread_union init_thread_union __init_task_data;
+#else
 union thread_union init_thread_union __init_task_data =
 	{ INIT_THREAD_INFO(init_task) };
+#endif
diff --git a/init/initramfs.c b/init/initramfs.c
index a67ef9d..3d88592 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -84,7 +84,7 @@ static void __init free_hash(void)
 	}
 }
 
-static long __init do_utime(char *filename, time_t mtime)
+static long __init do_utime(char __force_user *filename, time_t mtime)
 {
 	struct timespec t[2];
 
@@ -119,7 +119,7 @@ static void __init dir_utime(void)
 	struct dir_entry *de, *tmp;
 	list_for_each_entry_safe(de, tmp, &dir_list, list) {
 		list_del(&de->list);
-		do_utime(de->name, de->mtime);
+		do_utime((char __force_user *)de->name, de->mtime);
 		kfree(de->name);
 		kfree(de);
 	}
@@ -281,7 +281,7 @@ static int __init maybe_link(void)
 	if (nlink >= 2) {
 		char *old = find_link(major, minor, ino, mode, collected);
 		if (old)
-			return (sys_link(old, collected) < 0) ? -1 : 1;
+			return (sys_link((char __force_user *)old, (char __force_user *)collected) < 0) ? -1 : 1;
 	}
 	return 0;
 }
@@ -290,11 +290,11 @@ static void __init clean_path(char *path, umode_t mode)
 {
 	struct stat st;
 
-	if (!sys_newlstat(path, &st) && (st.st_mode^mode) & S_IFMT) {
+	if (!sys_newlstat((char __force_user *)path, (struct stat __force_user *)&st) && (st.st_mode^mode) & S_IFMT) {
 		if (S_ISDIR(st.st_mode))
-			sys_rmdir(path);
+			sys_rmdir((char __force_user *)path);
 		else
-			sys_unlink(path);
+			sys_unlink((char __force_user *)path);
 	}
 }
 
@@ -315,7 +315,7 @@ static int __init do_name(void)
 			int openflags = O_WRONLY|O_CREAT;
 			if (ml != 1)
 				openflags |= O_TRUNC;
-			wfd = sys_open(collected, openflags, mode);
+			wfd = sys_open((char __force_user *)collected, openflags, mode);
 
 			if (wfd >= 0) {
 				sys_fchown(wfd, uid, gid);
@@ -327,17 +327,17 @@ static int __init do_name(void)
 			}
 		}
 	} else if (S_ISDIR(mode)) {
-		sys_mkdir(collected, mode);
-		sys_chown(collected, uid, gid);
-		sys_chmod(collected, mode);
+		sys_mkdir((char __force_user *)collected, mode);
+		sys_chown((char __force_user *)collected, uid, gid);
+		sys_chmod((char __force_user *)collected, mode);
 		dir_add(collected, mtime);
 	} else if (S_ISBLK(mode) || S_ISCHR(mode) ||
 		   S_ISFIFO(mode) || S_ISSOCK(mode)) {
 		if (maybe_link() == 0) {
-			sys_mknod(collected, mode, rdev);
-			sys_chown(collected, uid, gid);
-			sys_chmod(collected, mode);
-			do_utime(collected, mtime);
+			sys_mknod((char __force_user *)collected, mode, rdev);
+			sys_chown((char __force_user *)collected, uid, gid);
+			sys_chmod((char __force_user *)collected, mode);
+			do_utime((char __force_user *)collected, mtime);
 		}
 	}
 	return 0;
@@ -346,15 +346,15 @@ static int __init do_name(void)
 static int __init do_copy(void)
 {
 	if (count >= body_len) {
-		sys_write(wfd, victim, body_len);
+		sys_write(wfd, (char __force_user *)victim, body_len);
 		sys_close(wfd);
-		do_utime(vcollected, mtime);
+		do_utime((char __force_user *)vcollected, mtime);
 		kfree(vcollected);
 		eat(body_len);
 		state = SkipIt;
 		return 0;
 	} else {
-		sys_write(wfd, victim, count);
+		sys_write(wfd, (char __force_user *)victim, count);
 		body_len -= count;
 		eat(count);
 		return 1;
@@ -365,9 +365,9 @@ static int __init do_symlink(void)
 {
 	collected[N_ALIGN(name_len) + body_len] = '\0';
 	clean_path(collected, 0);
-	sys_symlink(collected + N_ALIGN(name_len), collected);
-	sys_lchown(collected, uid, gid);
-	do_utime(collected, mtime);
+	sys_symlink((char __force_user *)collected + N_ALIGN(name_len), (char __force_user *)collected);
+	sys_lchown((char __force_user *)collected, uid, gid);
+	do_utime((char __force_user *)collected, mtime);
 	state = SkipIt;
 	next_state = Reset;
 	return 0;
diff --git a/init/main.c b/init/main.c
index 63534a1..85feae2 100644
--- a/init/main.c
+++ b/init/main.c
@@ -98,6 +98,8 @@ static inline void mark_rodata_ro(void) { }
 extern void tc_init(void);
 #endif
 
+extern void grsecurity_init(void);
+
 /*
  * Debug helper: via this flag we know that we are in 'early bootup code'
  * where only the boot processor is running with IRQ disabled.  This means
@@ -151,6 +153,64 @@ static int __init set_reset_devices(char *str)
 
 __setup("reset_devices", set_reset_devices);
 
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+kgid_t grsec_proc_gid = KGIDT_INIT(CONFIG_GRKERNSEC_PROC_GID);
+static int __init setup_grsec_proc_gid(char *str)
+{
+	grsec_proc_gid = KGIDT_INIT(simple_strtol(str, NULL, 0));
+	return 1;
+}
+__setup("grsec_proc_gid=", setup_grsec_proc_gid);
+#endif
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+unsigned long pax_user_shadow_base __read_only = 1UL << TASK_SIZE_MAX_SHIFT;
+EXPORT_SYMBOL(pax_user_shadow_base);
+extern char pax_enter_kernel_user[];
+extern char pax_exit_kernel_user[];
+extern pgdval_t clone_pgd_mask;
+#endif
+
+#if defined(CONFIG_X86) && defined(CONFIG_PAX_MEMORY_UDEREF)
+static int __init setup_pax_nouderef(char *str)
+{
+#ifdef CONFIG_X86_32
+	unsigned int cpu;
+	struct desc_struct *gdt;
+
+	for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
+		gdt = get_cpu_gdt_table(cpu);
+		gdt[GDT_ENTRY_KERNEL_DS].type = 3;
+		gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
+		gdt[GDT_ENTRY_DEFAULT_USER_CS].limit = 0xf;
+		gdt[GDT_ENTRY_DEFAULT_USER_DS].limit = 0xf;
+	}
+	loadsegment(ds, __KERNEL_DS);
+	loadsegment(es, __KERNEL_DS);
+	loadsegment(ss, __KERNEL_DS);
+#else
+	memcpy(pax_enter_kernel_user, (unsigned char []){0xc3}, 1);
+	memcpy(pax_exit_kernel_user, (unsigned char []){0xc3}, 1);
+	clone_pgd_mask = ~(pgdval_t)0UL;
+	pax_user_shadow_base = 0UL;
+#endif
+
+	return 0;
+}
+early_param("pax_nouderef", setup_pax_nouderef);
+#endif
+
+#ifdef CONFIG_PAX_SOFTMODE
+int pax_softmode;
+
+static int __init setup_pax_softmode(char *str)
+{
+	get_option(&str, &pax_softmode);
+	return 1;
+}
+__setup("pax_softmode=", setup_pax_softmode);
+#endif
+
 static const char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
 const char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
 static const char *panic_later, *panic_param;
@@ -683,6 +743,7 @@ int __init_or_module do_one_initcall(initcall_t fn)
 {
 	int count = preempt_count();
 	int ret;
+	const char *msg1 = "", *msg2 = "";
 
 	if (initcall_debug)
 		ret = do_one_initcall_debug(fn);
@@ -695,15 +756,15 @@ int __init_or_module do_one_initcall(initcall_t fn)
 		sprintf(msgbuf, "error code %d ", ret);
 
 	if (preempt_count() != count) {
-		strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf));
+		msg1 = " preemption imbalance";
 		preempt_count() = count;
 	}
 	if (irqs_disabled()) {
-		strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
+		msg2 = " disabled interrupts";
 		local_irq_enable();
 	}
-	if (msgbuf[0]) {
-		printk("initcall %pF returned with %s\n", fn, msgbuf);
+	if (msgbuf[0] || *msg1 || *msg2) {
+		printk("initcall %pF returned with %s%s%s\n", fn, msgbuf, msg1, msg2);
 	}
 
 	return ret;
@@ -757,8 +818,14 @@ static void __init do_initcall_level(int level)
 		   level, level,
 		   &repair_env_string);
 
-	for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++)
+	for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++) {
 		do_one_initcall(*fn);
+
+#ifdef LATENT_ENTROPY_PLUGIN
+		add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
+#endif
+
+	}
 }
 
 static void __init do_initcalls(void)
@@ -792,8 +859,14 @@ static void __init do_pre_smp_initcalls(void)
 {
 	initcall_t *fn;
 
-	for (fn = __initcall_start; fn < __initcall0_start; fn++)
+	for (fn = __initcall_start; fn < __initcall0_start; fn++) {
 		do_one_initcall(*fn);
+
+#ifdef LATENT_ENTROPY_PLUGIN
+		add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
+#endif
+
+	}
 }
 
 /*
@@ -811,8 +884,8 @@ static int run_init_process(const char *init_filename)
 {
 	argv_init[0] = init_filename;
 	return do_execve(init_filename,
-		(const char __user *const __user *)argv_init,
-		(const char __user *const __user *)envp_init);
+		(const char __user *const __force_user *)argv_init,
+		(const char __user *const __force_user *)envp_init);
 }
 
 static noinline void __init kernel_init_freeable(void);
@@ -890,7 +963,7 @@ static noinline void __init kernel_init_freeable(void)
 	do_basic_setup();
 
 	/* Open the /dev/console on the rootfs, this should never fail */
-	if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
+	if (sys_open((const char __force_user *) "/dev/console", O_RDWR, 0) < 0)
 		printk(KERN_WARNING "Warning: unable to open an initial console.\n");
 
 	(void) sys_dup(0);
@@ -903,11 +976,13 @@ static noinline void __init kernel_init_freeable(void)
 	if (!ramdisk_execute_command)
 		ramdisk_execute_command = "/init";
 
-	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
+	if (sys_access((const char __force_user *) ramdisk_execute_command, 0) != 0) {
 		ramdisk_execute_command = NULL;
 		prepare_namespace();
 	}
 
+	grsecurity_init();
+
 	/*
 	 * Ok, we have completed the initial bootup, and
 	 * we're essentially up and running. Get rid of the
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index 130dfec..cc88451 100644
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -30,7 +30,7 @@ static void *get_ipc(ctl_table *table)
 static int proc_ipc_dointvec(ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table ipc_table;
+	ctl_table_no_const ipc_table;
 
 	memcpy(&ipc_table, table, sizeof(ipc_table));
 	ipc_table.data = get_ipc(table);
@@ -41,7 +41,7 @@ static int proc_ipc_dointvec(ctl_table *table, int write,
 static int proc_ipc_dointvec_minmax(ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table ipc_table;
+	ctl_table_no_const ipc_table;
 
 	memcpy(&ipc_table, table, sizeof(ipc_table));
 	ipc_table.data = get_ipc(table);
@@ -65,7 +65,7 @@ static int proc_ipc_dointvec_minmax_orphans(ctl_table *table, int write,
 static int proc_ipc_callback_dointvec(ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table ipc_table;
+	ctl_table_no_const ipc_table;
 	size_t lenp_bef = *lenp;
 	int rc;
 
@@ -88,7 +88,7 @@ static int proc_ipc_callback_dointvec(ctl_table *table, int write,
 static int proc_ipc_doulongvec_minmax(ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table ipc_table;
+	ctl_table_no_const ipc_table;
 	memcpy(&ipc_table, table, sizeof(ipc_table));
 	ipc_table.data = get_ipc(table);
 
@@ -122,7 +122,7 @@ static void ipc_auto_callback(int val)
 static int proc_ipcauto_dointvec_minmax(ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table ipc_table;
+	ctl_table_no_const ipc_table;
 	size_t lenp_bef = *lenp;
 	int oldval;
 	int rc;
diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
index 383d638..943fdbb 100644
--- a/ipc/mq_sysctl.c
+++ b/ipc/mq_sysctl.c
@@ -25,7 +25,7 @@ static void *get_mq(ctl_table *table)
 static int proc_mq_dointvec_minmax(ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table mq_table;
+	ctl_table_no_const mq_table;
 	memcpy(&mq_table, table, sizeof(mq_table));
 	mq_table.data = get_mq(table);
 
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index e4e47f6..a85e0ad 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -278,6 +278,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
 		mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
 					  info->attr.mq_msgsize);
 
+		gr_learn_resource(current, RLIMIT_MSGQUEUE, u->mq_bytes + mq_bytes, 1);
 		spin_lock(&mq_lock);
 		if (u->mq_bytes + mq_bytes < u->mq_bytes ||
 		    u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) {
diff --git a/ipc/msg.c b/ipc/msg.c
index fede1d0..9778e0f8 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -309,18 +309,19 @@ static inline int msg_security(struct kern_ipc_perm *ipcp, int msgflg)
 	return security_msg_queue_associate(msq, msgflg);
 }
 
+static struct ipc_ops msg_ops = {
+	.getnew		= newque,
+	.associate	= msg_security,
+	.more_checks	= NULL
+};
+
 SYSCALL_DEFINE2(msgget, key_t, key, int, msgflg)
 {
 	struct ipc_namespace *ns;
-	struct ipc_ops msg_ops;
 	struct ipc_params msg_params;
 
 	ns = current->nsproxy->ipc_ns;
 
-	msg_ops.getnew = newque;
-	msg_ops.associate = msg_security;
-	msg_ops.more_checks = NULL;
-
 	msg_params.key = key;
 	msg_params.flg = msgflg;
 
diff --git a/ipc/sem.c b/ipc/sem.c
index 58d31f1..cce7a55 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -364,10 +364,15 @@ static inline int sem_more_checks(struct kern_ipc_perm *ipcp,
 	return 0;
 }
 
+static struct ipc_ops sem_ops = {
+	.getnew		= newary,
+	.associate	= sem_security,
+	.more_checks	= sem_more_checks
+};
+
 SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
 {
 	struct ipc_namespace *ns;
-	struct ipc_ops sem_ops;
 	struct ipc_params sem_params;
 
 	ns = current->nsproxy->ipc_ns;
@@ -375,10 +380,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
 	if (nsems < 0 || nsems > ns->sc_semmsl)
 		return -EINVAL;
 
-	sem_ops.getnew = newary;
-	sem_ops.associate = sem_security;
-	sem_ops.more_checks = sem_more_checks;
-
 	sem_params.key = key;
 	sem_params.flg = semflg;
 	sem_params.u.nsems = nsems;
diff --git a/ipc/shm.c b/ipc/shm.c
index 7e199fa..180a1ca 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -69,6 +69,14 @@ static void shm_destroy (struct ipc_namespace *ns, struct shmid_kernel *shp);
 static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
 #endif
 
+#ifdef CONFIG_GRKERNSEC
+extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
+			   const time_t shm_createtime, const kuid_t cuid,
+			   const int shmid);
+extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
+			   const time_t shm_createtime);
+#endif
+
 void shm_init_ns(struct ipc_namespace *ns)
 {
 	ns->shm_ctlmax = SHMMAX;
@@ -531,6 +539,14 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 	shp->shm_lprid = 0;
 	shp->shm_atim = shp->shm_dtim = 0;
 	shp->shm_ctim = get_seconds();
+#ifdef CONFIG_GRKERNSEC
+	{
+		struct timespec timeval;
+		do_posix_clock_monotonic_gettime(&timeval);
+
+		shp->shm_createtime = timeval.tv_sec;
+	}
+#endif
 	shp->shm_segsz = size;
 	shp->shm_nattch = 0;
 	shp->shm_file = file;
@@ -582,18 +598,19 @@ static inline int shm_more_checks(struct kern_ipc_perm *ipcp,
 	return 0;
 }
 
+static struct ipc_ops shm_ops = {
+	.getnew		= newseg,
+	.associate	= shm_security,
+	.more_checks	= shm_more_checks
+};
+
 SYSCALL_DEFINE3(shmget, key_t, key, size_t, size, int, shmflg)
 {
 	struct ipc_namespace *ns;
-	struct ipc_ops shm_ops;
 	struct ipc_params shm_params;
 
 	ns = current->nsproxy->ipc_ns;
 
-	shm_ops.getnew = newseg;
-	shm_ops.associate = shm_security;
-	shm_ops.more_checks = shm_more_checks;
-
 	shm_params.key = key;
 	shm_params.flg = shmflg;
 	shm_params.u.size = size;
@@ -1014,6 +1031,12 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 		f_mode = FMODE_READ | FMODE_WRITE;
 	}
 	if (shmflg & SHM_EXEC) {
+
+#ifdef CONFIG_PAX_MPROTECT
+		if (current->mm->pax_flags & MF_PAX_MPROTECT)
+			goto out;
+#endif
+
 		prot |= PROT_EXEC;
 		acc_mode |= S_IXUGO;
 	}
@@ -1037,9 +1060,21 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 	if (err)
 		goto out_unlock;
 
+#ifdef CONFIG_GRKERNSEC
+	if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime,
+			     shp->shm_perm.cuid, shmid) ||
+	    !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) {
+		err = -EACCES;
+		goto out_unlock;
+	}
+#endif
+
 	path = shp->shm_file->f_path;
 	path_get(&path);
 	shp->shm_nattch++;
+#ifdef CONFIG_GRKERNSEC
+	shp->shm_lapid = current->pid;
+#endif
 	size = i_size_read(path.dentry->d_inode);
 	shm_unlock(shp);
 
diff --git a/kernel/acct.c b/kernel/acct.c
index b9bd7f0..1762b4a 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -550,7 +550,7 @@ static void do_acct_process(struct bsd_acct_struct *acct,
 	 */
 	flim = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
 	current->signal->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
-	file->f_op->write(file, (char *)&ac,
+	file->f_op->write(file, (char __force_user *)&ac,
 			       sizeof(acct_t), &file->f_pos);
 	current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim;
 	set_fs(fs);
diff --git a/kernel/audit.c b/kernel/audit.c
index d596e53..dbef3c3 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -116,7 +116,7 @@ u32		audit_sig_sid = 0;
    3) suppressed due to audit_rate_limit
    4) suppressed due to audit_backlog_limit
 */
-static atomic_t    audit_lost = ATOMIC_INIT(0);
+static atomic_unchecked_t    audit_lost = ATOMIC_INIT(0);
 
 /* The netlink socket. */
 static struct sock *audit_sock;
@@ -238,7 +238,7 @@ void audit_log_lost(const char *message)
 	unsigned long		now;
 	int			print;
 
-	atomic_inc(&audit_lost);
+	atomic_inc_unchecked(&audit_lost);
 
 	print = (audit_failure == AUDIT_FAIL_PANIC || !audit_rate_limit);
 
@@ -257,7 +257,7 @@ void audit_log_lost(const char *message)
 			printk(KERN_WARNING
 				"audit: audit_lost=%d audit_rate_limit=%d "
 				"audit_backlog_limit=%d\n",
-				atomic_read(&audit_lost),
+				atomic_read_unchecked(&audit_lost),
 				audit_rate_limit,
 				audit_backlog_limit);
 		audit_panic(message);
@@ -681,7 +681,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		status_set.pid		 = audit_pid;
 		status_set.rate_limit	 = audit_rate_limit;
 		status_set.backlog_limit = audit_backlog_limit;
-		status_set.lost		 = atomic_read(&audit_lost);
+		status_set.lost		 = atomic_read_unchecked(&audit_lost);
 		status_set.backlog	 = skb_queue_len(&audit_skb_queue);
 		audit_send_reply(NETLINK_CB(skb).portid, seq, AUDIT_GET, 0, 0,
 				 &status_set, sizeof(status_set));
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index c4b72b0..8654c4e 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -2295,7 +2295,7 @@ int auditsc_get_stamp(struct audit_context *ctx,
 }
 
 /* global counter which is incremented every time something logs in */
-static atomic_t session_id = ATOMIC_INIT(0);
+static atomic_unchecked_t session_id = ATOMIC_INIT(0);
 
 /**
  * audit_set_loginuid - set current task's audit_context loginuid
@@ -2319,7 +2319,7 @@ int audit_set_loginuid(kuid_t loginuid)
 		return -EPERM;
 #endif  /* CONFIG_AUDIT_LOGINUID_IMMUTABLE */
 
-	sessionid = atomic_inc_return(&session_id);
+	sessionid = atomic_inc_return_unchecked(&session_id);
 	if (context && context->in_syscall) {
 		struct audit_buffer *ab;
 
diff --git a/kernel/capability.c b/kernel/capability.c
index f6c2ce5..982c0f9 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -202,6 +202,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_t, header, cap_user_data_t, dataptr)
 		 * before modification is attempted and the application
 		 * fails.
 		 */
+		if (tocopy > ARRAY_SIZE(kdata))
+			return -EFAULT;
+
 		if (copy_to_user(dataptr, kdata, tocopy
 				 * sizeof(struct __user_cap_data_struct))) {
 			return -EFAULT;
@@ -303,10 +306,11 @@ bool has_ns_capability(struct task_struct *t,
 	int ret;
 
 	rcu_read_lock();
-	ret = security_capable(__task_cred(t), ns, cap);
+	ret = security_capable(__task_cred(t), ns, cap) == 0 &&
+		gr_task_is_capable(t, __task_cred(t), cap);
 	rcu_read_unlock();
 
-	return (ret == 0);
+	return ret;
 }
 
 /**
@@ -343,10 +347,10 @@ bool has_ns_capability_noaudit(struct task_struct *t,
 	int ret;
 
 	rcu_read_lock();
-	ret = security_capable_noaudit(__task_cred(t), ns, cap);
+	ret = security_capable_noaudit(__task_cred(t), ns, cap) == 0 && gr_task_is_capable_nolog(t, cap);
 	rcu_read_unlock();
 
-	return (ret == 0);
+	return ret;
 }
 
 /**
@@ -384,7 +388,7 @@ bool ns_capable(struct user_namespace *ns, int cap)
 		BUG();
 	}
 
-	if (security_capable(current_cred(), ns, cap) == 0) {
+	if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable(cap)) {
 		current->flags |= PF_SUPERPRIV;
 		return true;
 	}
@@ -392,6 +396,21 @@ bool ns_capable(struct user_namespace *ns, int cap)
 }
 EXPORT_SYMBOL(ns_capable);
 
+bool ns_capable_nolog(struct user_namespace *ns, int cap)
+{
+	if (unlikely(!cap_valid(cap))) {
+		printk(KERN_CRIT "capable_nolog() called with invalid cap=%u\n", cap);
+		BUG();
+	}
+
+	if (security_capable_noaudit(current_cred(), ns, cap) == 0 && gr_is_capable_nolog(cap)) {
+		current->flags |= PF_SUPERPRIV;
+		return true;
+	}
+	return false;
+}
+EXPORT_SYMBOL(ns_capable_nolog);
+
 /**
  * file_ns_capable - Determine if the file's opener had a capability in effect
  * @file:  The file we want to check
@@ -432,6 +451,12 @@ bool capable(int cap)
 }
 EXPORT_SYMBOL(capable);
 
+bool capable_nolog(int cap)
+{
+	return ns_capable_nolog(&init_user_ns, cap);
+}
+EXPORT_SYMBOL(capable_nolog);
+
 /**
  * nsown_capable - Check superior capability to one's own user_ns
  * @cap: The capability in question
@@ -464,3 +489,10 @@ bool inode_capable(const struct inode *inode, int cap)
 
 	return ns_capable(ns, cap) && kuid_has_mapping(ns, inode->i_uid);
 }
+
+bool inode_capable_nolog(const struct inode *inode, int cap)
+{
+	struct user_namespace *ns = current_user_ns();
+
+	return ns_capable_nolog(ns, cap) && kuid_has_mapping(ns, inode->i_uid);
+}
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index ba1f977..f840d9c 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -5569,7 +5569,7 @@ static int cgroup_css_links_read(struct cgroup *cont,
 		struct css_set *cg = link->cg;
 		struct task_struct *task;
 		int count = 0;
-		seq_printf(seq, "css_set %p\n", cg);
+		seq_printf(seq, "css_set %pK\n", cg);
 		list_for_each_entry(task, &cg->tasks, cg_list) {
 			if (count++ > MAX_TASKS_SHOWN_PER_CSS) {
 				seq_puts(seq, "  ...\n");
diff --git a/kernel/compat.c b/kernel/compat.c
index 19971d8..02fe2df 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -13,6 +13,7 @@
 
 #include <linux/linkage.h>
 #include <linux/compat.h>
+#include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/time.h>
 #include <linux/signal.h>
@@ -220,7 +221,7 @@ static long compat_nanosleep_restart(struct restart_block *restart)
 	mm_segment_t oldfs;
 	long ret;
 
-	restart->nanosleep.rmtp = (struct timespec __user *) &rmt;
+	restart->nanosleep.rmtp = (struct timespec __force_user *) &rmt;
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	ret = hrtimer_nanosleep_restart(restart);
@@ -252,7 +253,7 @@ asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	ret = hrtimer_nanosleep(&tu,
-				rmtp ? (struct timespec __user *)&rmt : NULL,
+				rmtp ? (struct timespec __force_user *)&rmt : NULL,
 				HRTIMER_MODE_REL, CLOCK_MONOTONIC);
 	set_fs(oldfs);
 
@@ -361,7 +362,7 @@ asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set)
 	mm_segment_t old_fs = get_fs();
 
 	set_fs(KERNEL_DS);
-	ret = sys_sigpending((old_sigset_t __user *) &s);
+	ret = sys_sigpending((old_sigset_t __force_user *) &s);
 	set_fs(old_fs);
 	if (ret == 0)
 		ret = put_user(s, set);
@@ -451,7 +452,7 @@ asmlinkage long compat_sys_old_getrlimit(unsigned int resource,
 	mm_segment_t old_fs = get_fs();
 
 	set_fs(KERNEL_DS);
-	ret = sys_old_getrlimit(resource, &r);
+	ret = sys_old_getrlimit(resource, (struct rlimit __force_user *)&r);
 	set_fs(old_fs);
 
 	if (!ret) {
@@ -523,7 +524,7 @@ asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru)
 	mm_segment_t old_fs = get_fs();
 
 	set_fs(KERNEL_DS);
-	ret = sys_getrusage(who, (struct rusage __user *) &r);
+	ret = sys_getrusage(who, (struct rusage __force_user *) &r);
 	set_fs(old_fs);
 
 	if (ret)
@@ -552,8 +553,8 @@ COMPAT_SYSCALL_DEFINE4(wait4,
 		set_fs (KERNEL_DS);
 		ret = sys_wait4(pid,
 				(stat_addr ?
-				 (unsigned int __user *) &status : NULL),
-				options, (struct rusage __user *) &r);
+				 (unsigned int __force_user *) &status : NULL),
+				options, (struct rusage __force_user *) &r);
 		set_fs (old_fs);
 
 		if (ret > 0) {
@@ -579,8 +580,8 @@ COMPAT_SYSCALL_DEFINE5(waitid,
 	memset(&info, 0, sizeof(info));
 
 	set_fs(KERNEL_DS);
-	ret = sys_waitid(which, pid, (siginfo_t __user *)&info, options,
-			 uru ? (struct rusage __user *)&ru : NULL);
+	ret = sys_waitid(which, pid, (siginfo_t __force_user *)&info, options,
+			 uru ? (struct rusage __force_user *)&ru : NULL);
 	set_fs(old_fs);
 
 	if ((ret < 0) || (info.si_signo == 0))
@@ -714,8 +715,8 @@ long compat_sys_timer_settime(timer_t timer_id, int flags,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_timer_settime(timer_id, flags,
-				(struct itimerspec __user *) &newts,
-				(struct itimerspec __user *) &oldts);
+				(struct itimerspec __force_user *) &newts,
+				(struct itimerspec __force_user *) &oldts);
 	set_fs(oldfs);
 	if (!err && old && put_compat_itimerspec(old, &oldts))
 		return -EFAULT;
@@ -732,7 +733,7 @@ long compat_sys_timer_gettime(timer_t timer_id,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_timer_gettime(timer_id,
-				(struct itimerspec __user *) &ts);
+				(struct itimerspec __force_user *) &ts);
 	set_fs(oldfs);
 	if (!err && put_compat_itimerspec(setting, &ts))
 		return -EFAULT;
@@ -751,7 +752,7 @@ long compat_sys_clock_settime(clockid_t which_clock,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_clock_settime(which_clock,
-				(struct timespec __user *) &ts);
+				(struct timespec __force_user *) &ts);
 	set_fs(oldfs);
 	return err;
 }
@@ -766,7 +767,7 @@ long compat_sys_clock_gettime(clockid_t which_clock,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_clock_gettime(which_clock,
-				(struct timespec __user *) &ts);
+				(struct timespec __force_user *) &ts);
 	set_fs(oldfs);
 	if (!err && put_compat_timespec(&ts, tp))
 		return -EFAULT;
@@ -786,7 +787,7 @@ long compat_sys_clock_adjtime(clockid_t which_clock,
 
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
-	ret = sys_clock_adjtime(which_clock, (struct timex __user *) &txc);
+	ret = sys_clock_adjtime(which_clock, (struct timex __force_user *) &txc);
 	set_fs(oldfs);
 
 	err = compat_put_timex(utp, &txc);
@@ -806,7 +807,7 @@ long compat_sys_clock_getres(clockid_t which_clock,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_clock_getres(which_clock,
-			       (struct timespec __user *) &ts);
+			       (struct timespec __force_user *) &ts);
 	set_fs(oldfs);
 	if (!err && tp && put_compat_timespec(&ts, tp))
 		return -EFAULT;
@@ -818,9 +819,9 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart)
 	long err;
 	mm_segment_t oldfs;
 	struct timespec tu;
-	struct compat_timespec *rmtp = restart->nanosleep.compat_rmtp;
+	struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp;
 
-	restart->nanosleep.rmtp = (struct timespec __user *) &tu;
+	restart->nanosleep.rmtp = (struct timespec __force_user *) &tu;
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = clock_nanosleep_restart(restart);
@@ -852,8 +853,8 @@ long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_clock_nanosleep(which_clock, flags,
-				  (struct timespec __user *) &in,
-				  (struct timespec __user *) &out);
+				  (struct timespec __force_user *) &in,
+				  (struct timespec __force_user *) &out);
 	set_fs(oldfs);
 
 	if ((err == -ERESTART_RESTARTBLOCK) && rmtp &&
diff --git a/kernel/configs.c b/kernel/configs.c
index 42e8fa0..9e7406b 100644
--- a/kernel/configs.c
+++ b/kernel/configs.c
@@ -74,8 +74,19 @@ static int __init ikconfig_init(void)
 	struct proc_dir_entry *entry;
 
 	/* create the current config file */
+#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_HIDESYM)
+	entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL,
+			    &ikconfig_file_ops);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL,
+			    &ikconfig_file_ops);
+#endif
+#else
 	entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL,
 			    &ikconfig_file_ops);
+#endif
+
 	if (!entry)
 		return -ENOMEM;
 
diff --git a/kernel/cred.c b/kernel/cred.c
index e0573a4..3874e41 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -164,6 +164,16 @@ void exit_creds(struct task_struct *tsk)
 	validate_creds(cred);
 	alter_cred_subscribers(cred, -1);
 	put_cred(cred);
+
+#ifdef CONFIG_GRKERNSEC_SETXID
+	cred = (struct cred *) tsk->delayed_cred;
+	if (cred != NULL) {
+		tsk->delayed_cred = NULL;
+		validate_creds(cred);
+		alter_cred_subscribers(cred, -1);
+		put_cred(cred);
+	}
+#endif
 }
 
 /**
@@ -411,7 +421,7 @@ static bool cred_cap_issubset(const struct cred *set, const struct cred *subset)
  * Always returns 0 thus allowing this function to be tail-called at the end
  * of, say, sys_setgid().
  */
-int commit_creds(struct cred *new)
+static int __commit_creds(struct cred *new)
 {
 	struct task_struct *task = current;
 	const struct cred *old = task->real_cred;
@@ -430,6 +440,8 @@ int commit_creds(struct cred *new)
 
 	get_cred(new); /* we will require a ref for the subj creds too */
 
+	gr_set_role_label(task, new->uid, new->gid);
+
 	/* dumpability changes */
 	if (!uid_eq(old->euid, new->euid) ||
 	    !gid_eq(old->egid, new->egid) ||
@@ -479,6 +491,102 @@ int commit_creds(struct cred *new)
 	put_cred(old);
 	return 0;
 }
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern int set_user(struct cred *new);
+
+void gr_delayed_cred_worker(void)
+{
+	const struct cred *new = current->delayed_cred;
+	struct cred *ncred;
+
+	current->delayed_cred = NULL;
+
+	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID) && new != NULL) {
+		// from doing get_cred on it when queueing this
+		put_cred(new);
+		return;
+	} else if (new == NULL)
+		return;
+
+	ncred = prepare_creds();
+	if (!ncred)
+		goto die;
+	// uids
+	ncred->uid = new->uid;
+	ncred->euid = new->euid;
+	ncred->suid = new->suid;
+	ncred->fsuid = new->fsuid;
+	// gids
+	ncred->gid = new->gid;
+	ncred->egid = new->egid;
+	ncred->sgid = new->sgid;
+	ncred->fsgid = new->fsgid;
+	// groups
+	if (set_groups(ncred, new->group_info) < 0) {
+		abort_creds(ncred);
+		goto die;
+	}
+	// caps
+	ncred->securebits = new->securebits;
+	ncred->cap_inheritable = new->cap_inheritable;
+	ncred->cap_permitted = new->cap_permitted;
+	ncred->cap_effective = new->cap_effective;
+	ncred->cap_bset = new->cap_bset;
+
+	if (set_user(ncred)) {
+		abort_creds(ncred);
+		goto die;
+	}
+
+	// from doing get_cred on it when queueing this
+	put_cred(new);
+
+	__commit_creds(ncred);
+	return;
+die:
+	// from doing get_cred on it when queueing this
+	put_cred(new);
+	do_group_exit(SIGKILL);
+}
+#endif
+
+int commit_creds(struct cred *new)
+{
+#ifdef CONFIG_GRKERNSEC_SETXID
+	int ret;
+	int schedule_it = 0;
+	struct task_struct *t;
+
+	/* we won't get called with tasklist_lock held for writing
+	   and interrupts disabled as the cred struct in that case is
+	   init_cred
+	*/
+	if (grsec_enable_setxid && !current_is_single_threaded() &&
+	    uid_eq(current_uid(), GLOBAL_ROOT_UID) &&
+	    !uid_eq(new->uid, GLOBAL_ROOT_UID)) {
+		schedule_it = 1;
+	}
+	ret = __commit_creds(new);
+	if (schedule_it) {
+		rcu_read_lock();
+		read_lock(&tasklist_lock);
+		for (t = next_thread(current); t != current;
+		     t = next_thread(t)) {
+			if (t->delayed_cred == NULL) {
+				t->delayed_cred = get_cred(new);
+				set_tsk_thread_flag(t, TIF_GRSEC_SETXID);
+				set_tsk_need_resched(t);
+			}
+		}
+		read_unlock(&tasklist_lock);
+		rcu_read_unlock();
+	}
+	return ret;
+#else
+	return __commit_creds(new);
+#endif
+}
+
 EXPORT_SYMBOL(commit_creds);
 
 /**
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index c26278f..e323fb8 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -123,7 +123,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_lock);
  */
 static atomic_t			masters_in_kgdb;
 static atomic_t			slaves_in_kgdb;
-static atomic_t			kgdb_break_tasklet_var;
+static atomic_unchecked_t	kgdb_break_tasklet_var;
 atomic_t			kgdb_setting_breakpoint;
 
 struct task_struct		*kgdb_usethread;
@@ -133,7 +133,7 @@ int				kgdb_single_step;
 static pid_t			kgdb_sstep_pid;
 
 /* to keep track of the CPU which is doing the single stepping*/
-atomic_t			kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
+atomic_unchecked_t		kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
 
 /*
  * If you are debugging a problem where roundup (the collection of
@@ -541,7 +541,7 @@ return_normal:
 	 * kernel will only try for the value of sstep_tries before
 	 * giving up and continuing on.
 	 */
-	if (atomic_read(&kgdb_cpu_doing_single_step) != -1 &&
+	if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1 &&
 	    (kgdb_info[cpu].task &&
 	     kgdb_info[cpu].task->pid != kgdb_sstep_pid) && --sstep_tries) {
 		atomic_set(&kgdb_active, -1);
@@ -635,8 +635,8 @@ cpu_master_loop:
 	}
 
 kgdb_restore:
-	if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
-		int sstep_cpu = atomic_read(&kgdb_cpu_doing_single_step);
+	if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
+		int sstep_cpu = atomic_read_unchecked(&kgdb_cpu_doing_single_step);
 		if (kgdb_info[sstep_cpu].task)
 			kgdb_sstep_pid = kgdb_info[sstep_cpu].task->pid;
 		else
@@ -888,18 +888,18 @@ static void kgdb_unregister_callbacks(void)
 static void kgdb_tasklet_bpt(unsigned long ing)
 {
 	kgdb_breakpoint();
-	atomic_set(&kgdb_break_tasklet_var, 0);
+	atomic_set_unchecked(&kgdb_break_tasklet_var, 0);
 }
 
 static DECLARE_TASKLET(kgdb_tasklet_breakpoint, kgdb_tasklet_bpt, 0);
 
 void kgdb_schedule_breakpoint(void)
 {
-	if (atomic_read(&kgdb_break_tasklet_var) ||
+	if (atomic_read_unchecked(&kgdb_break_tasklet_var) ||
 		atomic_read(&kgdb_active) != -1 ||
 		atomic_read(&kgdb_setting_breakpoint))
 		return;
-	atomic_inc(&kgdb_break_tasklet_var);
+	atomic_inc_unchecked(&kgdb_break_tasklet_var);
 	tasklet_schedule(&kgdb_tasklet_breakpoint);
 }
 EXPORT_SYMBOL_GPL(kgdb_schedule_breakpoint);
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 00eb8f7..d7e3244 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -1974,7 +1974,7 @@ static int kdb_lsmod(int argc, const char **argv)
 			continue;
 
 		kdb_printf("%-20s%8u  0x%p ", mod->name,
-			   mod->core_size, (void *)mod);
+			   mod->core_size_rx + mod->core_size_rw, (void *)mod);
 #ifdef CONFIG_MODULE_UNLOAD
 		kdb_printf("%4ld ", module_refcount(mod));
 #endif
@@ -1984,7 +1984,7 @@ static int kdb_lsmod(int argc, const char **argv)
 			kdb_printf(" (Loading)");
 		else
 			kdb_printf(" (Live)");
-		kdb_printf(" 0x%p", mod->module_core);
+		kdb_printf(" 0x%p 0x%p", mod->module_core_rx,  mod->module_core_rw);
 
 #ifdef CONFIG_MODULE_UNLOAD
 		{
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 9fcb094..fd68c54 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -155,7 +155,11 @@ static struct srcu_struct pmus_srcu;
  *   1 - disallow cpu events for unpriv
  *   2 - disallow kernel profiling for unpriv
  */
-int sysctl_perf_event_paranoid __read_mostly = 1;
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+int sysctl_perf_event_legitimately_concerned __read_mostly = 2;
+#else
+int sysctl_perf_event_legitimately_concerned __read_mostly = 1;
+#endif
 
 /* Minimum for 512 kiB + 1 user control page */
 int sysctl_perf_event_mlock __read_mostly = 512 + (PAGE_SIZE / 1024); /* 'free' kiB per user */
@@ -182,7 +186,7 @@ int perf_proc_update_handler(struct ctl_table *table, int write,
 	return 0;
 }
 
-static atomic64_t perf_event_id;
+static atomic64_unchecked_t perf_event_id;
 
 static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx,
 			      enum event_type_t event_type);
@@ -2677,7 +2681,7 @@ static void __perf_event_read(void *info)
 
 static inline u64 perf_event_count(struct perf_event *event)
 {
-	return local64_read(&event->count) + atomic64_read(&event->child_count);
+	return local64_read(&event->count) + atomic64_read_unchecked(&event->child_count);
 }
 
 static u64 perf_event_read(struct perf_event *event)
@@ -3007,9 +3011,9 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
 	mutex_lock(&event->child_mutex);
 	total += perf_event_read(event);
 	*enabled += event->total_time_enabled +
-			atomic64_read(&event->child_total_time_enabled);
+			atomic64_read_unchecked(&event->child_total_time_enabled);
 	*running += event->total_time_running +
-			atomic64_read(&event->child_total_time_running);
+			atomic64_read_unchecked(&event->child_total_time_running);
 
 	list_for_each_entry(child, &event->child_list, child_list) {
 		total += perf_event_read(child);
@@ -3412,10 +3416,10 @@ void perf_event_update_userpage(struct perf_event *event)
 		userpg->offset -= local64_read(&event->hw.prev_count);
 
 	userpg->time_enabled = enabled +
-			atomic64_read(&event->child_total_time_enabled);
+			atomic64_read_unchecked(&event->child_total_time_enabled);
 
 	userpg->time_running = running +
-			atomic64_read(&event->child_total_time_running);
+			atomic64_read_unchecked(&event->child_total_time_running);
 
 	arch_perf_update_userpage(userpg, now);
 
@@ -3886,7 +3890,7 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size,
 
 		/* Data. */
 		sp = perf_user_stack_pointer(regs);
-		rem = __output_copy_user(handle, (void *) sp, dump_size);
+		rem = __output_copy_user(handle, (void __user *) sp, dump_size);
 		dyn_size = dump_size - rem;
 
 		perf_output_skip(handle, rem);
@@ -3974,11 +3978,11 @@ static void perf_output_read_one(struct perf_output_handle *handle,
 	values[n++] = perf_event_count(event);
 	if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
 		values[n++] = enabled +
-			atomic64_read(&event->child_total_time_enabled);
+			atomic64_read_unchecked(&event->child_total_time_enabled);
 	}
 	if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
 		values[n++] = running +
-			atomic64_read(&event->child_total_time_running);
+			atomic64_read_unchecked(&event->child_total_time_running);
 	}
 	if (read_format & PERF_FORMAT_ID)
 		values[n++] = primary_event_id(event);
@@ -4726,12 +4730,12 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 		 * need to add enough zero bytes after the string to handle
 		 * the 64bit alignment we do later.
 		 */
-		buf = kzalloc(PATH_MAX + sizeof(u64), GFP_KERNEL);
+		buf = kzalloc(PATH_MAX, GFP_KERNEL);
 		if (!buf) {
 			name = strncpy(tmp, "//enomem", sizeof(tmp));
 			goto got_name;
 		}
-		name = d_path(&file->f_path, buf, PATH_MAX);
+		name = d_path(&file->f_path, buf, PATH_MAX - sizeof(u64));
 		if (IS_ERR(name)) {
 			name = strncpy(tmp, "//toolong", sizeof(tmp));
 			goto got_name;
@@ -6167,7 +6171,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
 	event->parent		= parent_event;
 
 	event->ns		= get_pid_ns(task_active_pid_ns(current));
-	event->id		= atomic64_inc_return(&perf_event_id);
+	event->id		= atomic64_inc_return_unchecked(&perf_event_id);
 
 	event->state		= PERF_EVENT_STATE_INACTIVE;
 
@@ -6795,10 +6799,10 @@ static void sync_child_event(struct perf_event *child_event,
 	/*
 	 * Add back the child's count to the parent's count:
 	 */
-	atomic64_add(child_val, &parent_event->child_count);
-	atomic64_add(child_event->total_time_enabled,
+	atomic64_add_unchecked(child_val, &parent_event->child_count);
+	atomic64_add_unchecked(child_event->total_time_enabled,
 		     &parent_event->child_total_time_enabled);
-	atomic64_add(child_event->total_time_running,
+	atomic64_add_unchecked(child_event->total_time_running,
 		     &parent_event->child_total_time_running);
 
 	/*
diff --git a/kernel/events/internal.h b/kernel/events/internal.h
index eb675c4..54912ff 100644
--- a/kernel/events/internal.h
+++ b/kernel/events/internal.h
@@ -77,10 +77,10 @@ static inline unsigned long perf_data_size(struct ring_buffer *rb)
 	return rb->nr_pages << (PAGE_SHIFT + page_order(rb));
 }
 
-#define DEFINE_OUTPUT_COPY(func_name, memcpy_func)			\
+#define DEFINE_OUTPUT_COPY(func_name, memcpy_func, user)		\
 static inline unsigned int						\
 func_name(struct perf_output_handle *handle,				\
-	  const void *buf, unsigned int len)				\
+	  const void user *buf, unsigned int len)			\
 {									\
 	unsigned long size, written;					\
 									\
@@ -112,17 +112,17 @@ static inline int memcpy_common(void *dst, const void *src, size_t n)
 	return n;
 }
 
-DEFINE_OUTPUT_COPY(__output_copy, memcpy_common)
+DEFINE_OUTPUT_COPY(__output_copy, memcpy_common, )
 
 #define MEMCPY_SKIP(dst, src, n) (n)
 
-DEFINE_OUTPUT_COPY(__output_skip, MEMCPY_SKIP)
+DEFINE_OUTPUT_COPY(__output_skip, MEMCPY_SKIP, )
 
 #ifndef arch_perf_out_copy_user
 #define arch_perf_out_copy_user __copy_from_user_inatomic
 #endif
 
-DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user)
+DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user, __user)
 
 /* Callchain handling */
 extern struct perf_callchain_entry *
diff --git a/kernel/exit.c b/kernel/exit.c
index 60bc027..ca6d727 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -172,6 +172,10 @@ void release_task(struct task_struct * p)
 	struct task_struct *leader;
 	int zap_leader;
 repeat:
+#ifdef CONFIG_NET
+	gr_del_task_from_ip_table(p);
+#endif
+
 	/* don't need to get the RCU readlock here - the process is dead and
 	 * can't be modifying its own credentials. But shut RCU-lockdep up */
 	rcu_read_lock();
@@ -340,7 +344,7 @@ int allow_signal(int sig)
 	 * know it'll be handled, so that they don't get converted to
 	 * SIGKILL or just silently dropped.
 	 */
-	current->sighand->action[(sig)-1].sa.sa_handler = (void __user *)2;
+	current->sighand->action[(sig)-1].sa.sa_handler = (__force void __user *)2;
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 	return 0;
@@ -710,6 +714,8 @@ void do_exit(long code)
 	struct task_struct *tsk = current;
 	int group_dead;
 
+	set_fs(USER_DS);
+
 	profile_task_exit(tsk);
 
 	WARN_ON(blk_needs_flush_plug(tsk));
@@ -726,7 +732,6 @@ void do_exit(long code)
 	 * mm_release()->clear_child_tid() from writing to a user-controlled
 	 * kernel address.
 	 */
-	set_fs(USER_DS);
 
 	ptrace_event(PTRACE_EVENT_EXIT, code);
 
@@ -785,6 +790,9 @@ void do_exit(long code)
 	tsk->exit_code = code;
 	taskstats_exit(tsk, group_dead);
 
+	gr_acl_handle_psacct(tsk, code);
+	gr_acl_handle_exit();
+
 	exit_mm(tsk);
 
 	if (group_dead)
@@ -905,7 +913,7 @@ SYSCALL_DEFINE1(exit, int, error_code)
  * Take down every thread in the group.  This is called by fatal signals
  * as well as by sys_exit_group (below).
  */
-void
+__noreturn void
 do_group_exit(int exit_code)
 {
 	struct signal_struct *sig = current->signal;
diff --git a/kernel/fork.c b/kernel/fork.c
index 1766d32..c0e44e2 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -318,7 +318,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
 	*stackend = STACK_END_MAGIC;	/* for overflow detection */
 
 #ifdef CONFIG_CC_STACKPROTECTOR
-	tsk->stack_canary = get_random_int();
+	tsk->stack_canary = pax_get_random_long();
 #endif
 
 	/*
@@ -344,13 +344,81 @@ free_tsk:
 }
 
 #ifdef CONFIG_MMU
+static struct vm_area_struct *dup_vma(struct mm_struct *mm, struct mm_struct *oldmm, struct vm_area_struct *mpnt)
+{
+	struct vm_area_struct *tmp;
+	unsigned long charge;
+	struct mempolicy *pol;
+	struct file *file;
+
+	charge = 0;
+	if (mpnt->vm_flags & VM_ACCOUNT) {
+		unsigned long len = vma_pages(mpnt);
+
+		if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
+			goto fail_nomem;
+		charge = len;
+	}
+	tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+	if (!tmp)
+		goto fail_nomem;
+	*tmp = *mpnt;
+	tmp->vm_mm = mm;
+	INIT_LIST_HEAD(&tmp->anon_vma_chain);
+	pol = mpol_dup(vma_policy(mpnt));
+	if (IS_ERR(pol))
+		goto fail_nomem_policy;
+	vma_set_policy(tmp, pol);
+	if (anon_vma_fork(tmp, mpnt))
+		goto fail_nomem_anon_vma_fork;
+	tmp->vm_flags &= ~VM_LOCKED;
+	tmp->vm_next = tmp->vm_prev = NULL;
+	tmp->vm_mirror = NULL;
+	file = tmp->vm_file;
+	if (file) {
+		struct inode *inode = file_inode(file);
+		struct address_space *mapping = file->f_mapping;
+
+		get_file(file);
+		if (tmp->vm_flags & VM_DENYWRITE)
+			atomic_dec(&inode->i_writecount);
+		mutex_lock(&mapping->i_mmap_mutex);
+		if (tmp->vm_flags & VM_SHARED)
+			mapping->i_mmap_writable++;
+		flush_dcache_mmap_lock(mapping);
+		/* insert tmp into the share list, just after mpnt */
+		if (unlikely(tmp->vm_flags & VM_NONLINEAR))
+			vma_nonlinear_insert(tmp, &mapping->i_mmap_nonlinear);
+		else
+			vma_interval_tree_insert_after(tmp, mpnt, &mapping->i_mmap);
+		flush_dcache_mmap_unlock(mapping);
+		mutex_unlock(&mapping->i_mmap_mutex);
+	}
+
+	/*
+	 * Clear hugetlb-related page reserves for children. This only
+	 * affects MAP_PRIVATE mappings. Faults generated by the child
+	 * are not guaranteed to succeed, even if read-only
+	 */
+	if (is_vm_hugetlb_page(tmp))
+		reset_vma_resv_huge_pages(tmp);
+
+	return tmp;
+
+fail_nomem_anon_vma_fork:
+	mpol_put(pol);
+fail_nomem_policy:
+	kmem_cache_free(vm_area_cachep, tmp);
+fail_nomem:
+	vm_unacct_memory(charge);
+	return NULL;
+}
+
 static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 {
 	struct vm_area_struct *mpnt, *tmp, *prev, **pprev;
 	struct rb_node **rb_link, *rb_parent;
 	int retval;
-	unsigned long charge;
-	struct mempolicy *pol;
 
 	uprobe_start_dup_mmap();
 	down_write(&oldmm->mmap_sem);
@@ -364,8 +432,8 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 	mm->locked_vm = 0;
 	mm->mmap = NULL;
 	mm->mmap_cache = NULL;
-	mm->free_area_cache = oldmm->mmap_base;
-	mm->cached_hole_size = ~0UL;
+	mm->free_area_cache = oldmm->free_area_cache;
+	mm->cached_hole_size = oldmm->cached_hole_size;
 	mm->map_count = 0;
 	cpumask_clear(mm_cpumask(mm));
 	mm->mm_rb = RB_ROOT;
@@ -381,57 +449,15 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 
 	prev = NULL;
 	for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) {
-		struct file *file;
-
 		if (mpnt->vm_flags & VM_DONTCOPY) {
 			vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file,
 							-vma_pages(mpnt));
 			continue;
 		}
-		charge = 0;
-		if (mpnt->vm_flags & VM_ACCOUNT) {
-			unsigned long len = vma_pages(mpnt);
-
-			if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
-				goto fail_nomem;
-			charge = len;
-		}
-		tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
-		if (!tmp)
-			goto fail_nomem;
-		*tmp = *mpnt;
-		INIT_LIST_HEAD(&tmp->anon_vma_chain);
-		pol = mpol_dup(vma_policy(mpnt));
-		retval = PTR_ERR(pol);
-		if (IS_ERR(pol))
-			goto fail_nomem_policy;
-		vma_set_policy(tmp, pol);
-		tmp->vm_mm = mm;
-		if (anon_vma_fork(tmp, mpnt))
-			goto fail_nomem_anon_vma_fork;
-		tmp->vm_flags &= ~VM_LOCKED;
-		tmp->vm_next = tmp->vm_prev = NULL;
-		file = tmp->vm_file;
-		if (file) {
-			struct inode *inode = file_inode(file);
-			struct address_space *mapping = file->f_mapping;
-
-			get_file(file);
-			if (tmp->vm_flags & VM_DENYWRITE)
-				atomic_dec(&inode->i_writecount);
-			mutex_lock(&mapping->i_mmap_mutex);
-			if (tmp->vm_flags & VM_SHARED)
-				mapping->i_mmap_writable++;
-			flush_dcache_mmap_lock(mapping);
-			/* insert tmp into the share list, just after mpnt */
-			if (unlikely(tmp->vm_flags & VM_NONLINEAR))
-				vma_nonlinear_insert(tmp,
-						&mapping->i_mmap_nonlinear);
-			else
-				vma_interval_tree_insert_after(tmp, mpnt,
-							&mapping->i_mmap);
-			flush_dcache_mmap_unlock(mapping);
-			mutex_unlock(&mapping->i_mmap_mutex);
+		tmp = dup_vma(mm, oldmm, mpnt);
+		if (!tmp) {
+			retval = -ENOMEM;
+			goto out;
 		}
 
 		/*
@@ -463,6 +489,31 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 		if (retval)
 			goto out;
 	}
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (oldmm->pax_flags & MF_PAX_SEGMEXEC) {
+		struct vm_area_struct *mpnt_m;
+
+		for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) {
+			BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm);
+
+			if (!mpnt->vm_mirror)
+				continue;
+
+			if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) {
+				BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt);
+				mpnt->vm_mirror = mpnt_m;
+			} else {
+				BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm);
+				mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror;
+				mpnt_m->vm_mirror->vm_mirror = mpnt_m;
+				mpnt->vm_mirror->vm_mirror = mpnt;
+			}
+		}
+		BUG_ON(mpnt_m);
+	}
+#endif
+
 	/* a new mm has just been created */
 	arch_dup_mmap(oldmm, mm);
 	retval = 0;
@@ -472,14 +523,6 @@ out:
 	up_write(&oldmm->mmap_sem);
 	uprobe_end_dup_mmap();
 	return retval;
-fail_nomem_anon_vma_fork:
-	mpol_put(pol);
-fail_nomem_policy:
-	kmem_cache_free(vm_area_cachep, tmp);
-fail_nomem:
-	retval = -ENOMEM;
-	vm_unacct_memory(charge);
-	goto out;
 }
 
 static inline int mm_alloc_pgd(struct mm_struct *mm)
@@ -694,8 +737,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
 		return ERR_PTR(err);
 
 	mm = get_task_mm(task);
-	if (mm && mm != current->mm &&
-			!ptrace_may_access(task, mode)) {
+	if (mm && ((mm != current->mm && !ptrace_may_access(task, mode)) ||
+		  (mode == PTRACE_MODE_ATTACH && (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))))) {
 		mmput(mm);
 		mm = ERR_PTR(-EACCES);
 	}
@@ -917,13 +960,20 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)
 			spin_unlock(&fs->lock);
 			return -EAGAIN;
 		}
-		fs->users++;
+		atomic_inc(&fs->users);
 		spin_unlock(&fs->lock);
 		return 0;
 	}
 	tsk->fs = copy_fs_struct(fs);
 	if (!tsk->fs)
 		return -ENOMEM;
+	/* Carry through gr_chroot_dentry and is_chrooted instead
+	   of recomputing it here.  Already copied when the task struct
+	   is duplicated.  This allows pivot_root to not be treated as
+	   a chroot
+	*/
+	//gr_set_chroot_entries(tsk, &tsk->fs->root);
+
 	return 0;
 }
 
@@ -1196,6 +1246,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
 #endif
 	retval = -EAGAIN;
+
+	gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->real_cred->user->processes), 0);
+
 	if (atomic_read(&p->real_cred->user->processes) >=
 			task_rlimit(p, RLIMIT_NPROC)) {
 		if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) &&
@@ -1441,6 +1494,11 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 		goto bad_fork_free_pid;
 	}
 
+	/* synchronizes with gr_set_acls()
+	   we need to call this past the point of no return for fork()
+	*/
+	gr_copy_label(p);
+
 	if (clone_flags & CLONE_THREAD) {
 		current->signal->nr_threads++;
 		atomic_inc(&current->signal->live);
@@ -1524,6 +1582,8 @@ bad_fork_cleanup_count:
 bad_fork_free:
 	free_task(p);
 fork_out:
+	gr_log_forkfail(retval);
+
 	return ERR_PTR(retval);
 }
 
@@ -1574,6 +1634,23 @@ long do_fork(unsigned long clone_flags,
 			return -EINVAL;
 	}
 
+#ifdef CONFIG_GRKERNSEC
+	if (clone_flags & CLONE_NEWUSER) {
+		/* 
+		 * This doesn't really inspire confidence:
+		 * http://marc.info/?l=linux-kernel&m=135543612731939&w=2
+		 * http://marc.info/?l=linux-kernel&m=135545831607095&w=2
+		 * Increases kernel attack surface in areas developers
+		 * previously cared little about ("low importance due
+		 * to requiring "root" capability")
+		 * To be removed when this code receives *proper* review
+		 */
+		if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SETUID) ||
+				!capable(CAP_SETGID))
+			return -EPERM;
+	}
+#endif
+
 	/*
 	 * Determine whether and which event to report to ptracer.  When
 	 * called from kernel_thread or CLONE_UNTRACED is explicitly
@@ -1608,6 +1685,8 @@ long do_fork(unsigned long clone_flags,
 		if (clone_flags & CLONE_PARENT_SETTID)
 			put_user(nr, parent_tidptr);
 
+		gr_handle_brute_check();
+
 		if (clone_flags & CLONE_VFORK) {
 			p->vfork_done = &vfork;
 			init_completion(&vfork);
@@ -1761,7 +1840,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp)
 		return 0;
 
 	/* don't need lock here; in the worst case we'll do useless copy */
-	if (fs->users == 1)
+	if (atomic_read(&fs->users) == 1)
 		return 0;
 
 	*new_fsp = copy_fs_struct(fs);
@@ -1873,7 +1952,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
 			fs = current->fs;
 			spin_lock(&fs->lock);
 			current->fs = new_fs;
-			if (--fs->users)
+			gr_set_chroot_entries(current, &current->fs->root);
+			if (atomic_dec_return(&fs->users))
 				new_fs = NULL;
 			else
 				new_fs = fs;
diff --git a/kernel/futex.c b/kernel/futex.c
index b26dcfc..39e266a 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -54,6 +54,7 @@
 #include <linux/mount.h>
 #include <linux/pagemap.h>
 #include <linux/syscalls.h>
+#include <linux/ptrace.h>
 #include <linux/signal.h>
 #include <linux/export.h>
 #include <linux/magic.h>
@@ -241,6 +242,11 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw)
 	struct page *page, *page_head;
 	int err, ro = 0;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE)
+		return -EFAULT;
+#endif
+
 	/*
 	 * The futex address must be "naturally" aligned.
 	 */
@@ -2732,6 +2738,7 @@ static int __init futex_init(void)
 {
 	u32 curval;
 	int i;
+	mm_segment_t oldfs;
 
 	/*
 	 * This will fail and we want it. Some arch implementations do
@@ -2743,8 +2750,11 @@ static int __init futex_init(void)
 	 * implementation, the non-functional ones will return
 	 * -ENOSYS.
 	 */
+	oldfs = get_fs();
+	set_fs(USER_DS);
 	if (cmpxchg_futex_value_locked(&curval, NULL, 0, 0) == -EFAULT)
 		futex_cmpxchg_enabled = 1;
+	set_fs(oldfs);
 
 	for (i = 0; i < ARRAY_SIZE(futex_queues); i++) {
 		plist_head_init(&futex_queues[i].chain);
diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index f9f44fd..29885e4 100644
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -32,7 +32,7 @@ fetch_robust_entry(compat_uptr_t *uentry, struct robust_list __user **entry,
 	return 0;
 }
 
-static void __user *futex_uaddr(struct robust_list __user *entry,
+static void __user __intentional_overflow(-1) *futex_uaddr(struct robust_list __user *entry,
 				compat_long_t futex_offset)
 {
 	compat_uptr_t base = ptr_to_compat(entry);
diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
index 9b22d03..6295b62 100644
--- a/kernel/gcov/base.c
+++ b/kernel/gcov/base.c
@@ -102,11 +102,6 @@ void gcov_enable_events(void)
 }
 
 #ifdef CONFIG_MODULES
-static inline int within(void *addr, void *start, unsigned long size)
-{
-	return ((addr >= start) && (addr < start + size));
-}
-
 /* Update list and generate events when modules are unloaded. */
 static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
 				void *data)
@@ -121,7 +116,7 @@ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
 	prev = NULL;
 	/* Remove entries located in module from linked list. */
 	for (info = gcov_info_head; info; info = info->next) {
-		if (within(info, mod->module_core, mod->core_size)) {
+		if (within_module_core_rw((unsigned long)info, mod)) {
 			if (prev)
 				prev->next = info->next;
 			else
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 7ef5556..8247f11 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -1416,7 +1416,7 @@ void hrtimer_peek_ahead_timers(void)
 	local_irq_restore(flags);
 }
 
-static void run_hrtimer_softirq(struct softirq_action *h)
+static void run_hrtimer_softirq(void)
 {
 	struct hrtimer_cpu_base *cpu_base = &__get_cpu_var(hrtimer_bases);
 
@@ -1758,7 +1758,7 @@ static int __cpuinit hrtimer_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata hrtimers_nb = {
+static struct notifier_block hrtimers_nb = {
 	.notifier_call = hrtimer_cpu_notify,
 };
 
diff --git a/kernel/irq_work.c b/kernel/irq_work.c
index 55fcce6..0e4cf34 100644
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@ -189,12 +189,13 @@ static int irq_work_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block cpu_notify;
+static struct notifier_block cpu_notify = {
+	.notifier_call = irq_work_cpu_notify,
+	.priority = 0,
+};
 
 static __init int irq_work_init_cpu_notifier(void)
 {
-	cpu_notify.notifier_call = irq_work_cpu_notify;
-	cpu_notify.priority = 0;
 	register_cpu_notifier(&cpu_notify);
 	return 0;
 }
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 60f48fa..7f3a770 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -13,6 +13,7 @@
 #include <linux/sort.h>
 #include <linux/err.h>
 #include <linux/static_key.h>
+#include <linux/mm.h>
 
 #ifdef HAVE_JUMP_LABEL
 
@@ -50,7 +51,9 @@ jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop)
 
 	size = (((unsigned long)stop - (unsigned long)start)
 					/ sizeof(struct jump_entry));
+	pax_open_kernel();
 	sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL);
+	pax_close_kernel();
 }
 
 static void jump_label_update(struct static_key *key, int enable);
@@ -357,10 +360,12 @@ static void jump_label_invalidate_module_init(struct module *mod)
 	struct jump_entry *iter_stop = iter_start + mod->num_jump_entries;
 	struct jump_entry *iter;
 
+	pax_open_kernel();
 	for (iter = iter_start; iter < iter_stop; iter++) {
 		if (within_module_init(iter->code, mod))
 			iter->code = 0;
 	}
+	pax_close_kernel();
 }
 
 static int
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 2169fee..706ccca 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -11,6 +11,9 @@
  *      Changed the compression method from stem compression to "table lookup"
  *      compression (see scripts/kallsyms.c for a more complete description)
  */
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+#define __INCLUDED_BY_HIDESYM 1
+#endif
 #include <linux/kallsyms.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -53,12 +56,33 @@ extern const unsigned long kallsyms_markers[] __attribute__((weak));
 
 static inline int is_kernel_inittext(unsigned long addr)
 {
+	if (system_state != SYSTEM_BOOTING)
+		return 0;
+
 	if (addr >= (unsigned long)_sinittext
 	    && addr <= (unsigned long)_einittext)
 		return 1;
 	return 0;
 }
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+#ifdef CONFIG_MODULES
+static inline int is_module_text(unsigned long addr)
+{
+	if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END)
+		return 1;
+
+	addr = ktla_ktva(addr);
+	return (unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END;
+}
+#else
+static inline int is_module_text(unsigned long addr)
+{
+	return 0;
+}
+#endif
+#endif
+
 static inline int is_kernel_text(unsigned long addr)
 {
 	if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) ||
@@ -69,13 +93,28 @@ static inline int is_kernel_text(unsigned long addr)
 
 static inline int is_kernel(unsigned long addr)
 {
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	if (is_kernel_text(addr) || is_kernel_inittext(addr))
+		return 1;
+
+	if (ktla_ktva((unsigned long)_text) <= addr && addr < (unsigned long)_end)
+#else
 	if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
+#endif
+
 		return 1;
 	return in_gate_area_no_mm(addr);
 }
 
 static int is_ksym_addr(unsigned long addr)
 {
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	if (is_module_text(addr))
+		return 0;
+#endif
+
 	if (all_var)
 		return is_kernel(addr);
 
@@ -470,7 +509,6 @@ static unsigned long get_ksymbol_core(struct kallsym_iter *iter)
 
 static void reset_iter(struct kallsym_iter *iter, loff_t new_pos)
 {
-	iter->name[0] = '\0';
 	iter->nameoff = get_symbol_offset(new_pos);
 	iter->pos = new_pos;
 }
@@ -518,6 +556,11 @@ static int s_show(struct seq_file *m, void *p)
 {
 	struct kallsym_iter *iter = m->private;
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID))
+		return 0;
+#endif
+
 	/* Some debugging symbols have no name.  Ignore them. */
 	if (!iter->name[0])
 		return 0;
@@ -531,6 +574,7 @@ static int s_show(struct seq_file *m, void *p)
 		 */
 		type = iter->exported ? toupper(iter->type) :
 					tolower(iter->type);
+
 		seq_printf(m, "%pK %c %s\t[%s]\n", (void *)iter->value,
 			   type, iter->name, iter->module_name);
 	} else
@@ -556,7 +600,7 @@ static int kallsyms_open(struct inode *inode, struct file *file)
 	struct kallsym_iter *iter;
 	int ret;
 
-	iter = kmalloc(sizeof(*iter), GFP_KERNEL);
+	iter = kzalloc(sizeof(*iter), GFP_KERNEL);
 	if (!iter)
 		return -ENOMEM;
 	reset_iter(iter, 0);
diff --git a/kernel/kcmp.c b/kernel/kcmp.c
index e30ac0f..3528cac 100644
--- a/kernel/kcmp.c
+++ b/kernel/kcmp.c
@@ -99,6 +99,10 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
 	struct task_struct *task1, *task2;
 	int ret;
 
+#ifdef CONFIG_GRKERNSEC
+	return -ENOSYS;
+#endif
+
 	rcu_read_lock();
 
 	/*
diff --git a/kernel/kexec.c b/kernel/kexec.c
index ffd4e11..c3ff6bf 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1048,7 +1048,8 @@ asmlinkage long compat_sys_kexec_load(unsigned long entry,
 				unsigned long flags)
 {
 	struct compat_kexec_segment in;
-	struct kexec_segment out, __user *ksegments;
+	struct kexec_segment out;
+	struct kexec_segment __user *ksegments;
 	unsigned long i, result;
 
 	/* Don't allow clients that don't understand the native
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 8985c87..f539dbe 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -75,7 +75,7 @@ static void free_modprobe_argv(struct subprocess_info *info)
 	kfree(info->argv);
 }
 
-static int call_modprobe(char *module_name, int wait)
+static int call_modprobe(char *module_name, char *module_param, int wait)
 {
 	static char *envp[] = {
 		"HOME=/",
@@ -84,7 +84,7 @@ static int call_modprobe(char *module_name, int wait)
 		NULL
 	};
 
-	char **argv = kmalloc(sizeof(char *[5]), GFP_KERNEL);
+	char **argv = kmalloc(sizeof(char *[6]), GFP_KERNEL);
 	if (!argv)
 		goto out;
 
@@ -96,7 +96,8 @@ static int call_modprobe(char *module_name, int wait)
 	argv[1] = "-q";
 	argv[2] = "--";
 	argv[3] = module_name;	/* check free_modprobe_argv() */
-	argv[4] = NULL;
+	argv[4] = module_param;
+	argv[5] = NULL;
 
 	return call_usermodehelper_fns(modprobe_path, argv, envp,
 		wait | UMH_KILLABLE, NULL, free_modprobe_argv, NULL);
@@ -121,9 +122,8 @@ out:
  * If module auto-loading support is disabled then this function
  * becomes a no-operation.
  */
-int __request_module(bool wait, const char *fmt, ...)
+static int ____request_module(bool wait, char *module_param, const char *fmt, va_list ap)
 {
-	va_list args;
 	char module_name[MODULE_NAME_LEN];
 	unsigned int max_modprobes;
 	int ret;
@@ -139,9 +139,7 @@ int __request_module(bool wait, const char *fmt, ...)
 	 */
 	WARN_ON_ONCE(wait && current_is_async());
 
-	va_start(args, fmt);
-	ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args);
-	va_end(args);
+	ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, ap);
 	if (ret >= MODULE_NAME_LEN)
 		return -ENAMETOOLONG;
 
@@ -149,6 +147,20 @@ int __request_module(bool wait, const char *fmt, ...)
 	if (ret)
 		return ret;
 
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	if (uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
+		/* hack to workaround consolekit/udisks stupidity */
+		read_lock(&tasklist_lock);
+		if (!strcmp(current->comm, "mount") &&
+		    current->real_parent && !strncmp(current->real_parent->comm, "udisk", 5)) {
+			read_unlock(&tasklist_lock);
+			printk(KERN_ALERT "grsec: denied attempt to auto-load fs module %.64s by udisks\n", module_name);
+			return -EPERM;
+		}
+		read_unlock(&tasklist_lock);
+	}
+#endif
+
 	/* If modprobe needs a service that is in a module, we get a recursive
 	 * loop.  Limit the number of running kmod threads to max_threads/2 or
 	 * MAX_KMOD_CONCURRENT, whichever is the smaller.  A cleaner method
@@ -177,11 +189,52 @@ int __request_module(bool wait, const char *fmt, ...)
 
 	trace_module_request(module_name, wait, _RET_IP_);
 
-	ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
+	ret = call_modprobe(module_name, module_param, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
 
 	atomic_dec(&kmod_concurrent);
 	return ret;
 }
+
+int ___request_module(bool wait, char *module_param, const char *fmt, ...)
+{
+	va_list args;
+	int ret;
+
+	va_start(args, fmt);
+	ret = ____request_module(wait, module_param, fmt, args);
+	va_end(args);
+
+	return ret;
+}
+
+int __request_module(bool wait, const char *fmt, ...)
+{
+	va_list args;
+	int ret;
+
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
+		char module_param[MODULE_NAME_LEN];
+
+		memset(module_param, 0, sizeof(module_param));
+
+		snprintf(module_param, sizeof(module_param) - 1, "grsec_modharden_normal%u_", GR_GLOBAL_UID(current_uid()));
+
+		va_start(args, fmt);
+		ret = ____request_module(wait, module_param, fmt, args);
+		va_end(args);
+
+		return ret;
+	}
+#endif
+
+	va_start(args, fmt);
+	ret = ____request_module(wait, NULL, fmt, args);
+	va_end(args);
+
+	return ret;
+}
+
 EXPORT_SYMBOL(__request_module);
 #endif /* CONFIG_MODULES */
 
@@ -292,7 +345,7 @@ static int wait_for_helper(void *data)
 		 *
 		 * Thus the __user pointer cast is valid here.
 		 */
-		sys_wait4(pid, (int __user *)&ret, 0, NULL);
+		sys_wait4(pid, (int __force_user *)&ret, 0, NULL);
 
 		/*
 		 * If ret is 0, either ____call_usermodehelper failed and the
@@ -649,7 +702,7 @@ EXPORT_SYMBOL(call_usermodehelper_fns);
 static int proc_cap_handler(struct ctl_table *table, int write,
 			 void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table t;
+	ctl_table_no_const t;
 	unsigned long cap_array[_KERNEL_CAPABILITY_U32S];
 	kernel_cap_t new_cap;
 	int err, i;
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 3fed7f0..a3f95ed 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -185,7 +185,7 @@ static kprobe_opcode_t __kprobes *__get_insn_slot(struct kprobe_insn_cache *c)
 	 * kernel image and loaded module images reside. This is required
 	 * so x86_64 can correctly handle the %rip-relative fixups.
 	 */
-	kip->insns = module_alloc(PAGE_SIZE);
+	kip->insns = module_alloc_exec(PAGE_SIZE);
 	if (!kip->insns) {
 		kfree(kip);
 		return NULL;
@@ -225,7 +225,7 @@ static int __kprobes collect_one_slot(struct kprobe_insn_page *kip, int idx)
 		 */
 		if (!list_is_singular(&kip->list)) {
 			list_del(&kip->list);
-			module_free(NULL, kip->insns);
+			module_free_exec(NULL, kip->insns);
 			kfree(kip);
 		}
 		return 1;
@@ -2073,7 +2073,7 @@ static int __init init_kprobes(void)
 {
 	int i, err = 0;
 	unsigned long offset = 0, size = 0;
-	char *modname, namebuf[128];
+	char *modname, namebuf[KSYM_NAME_LEN];
 	const char *symbol_name;
 	void *addr;
 	struct kprobe_blackpoint *kb;
@@ -2158,11 +2158,11 @@ static void __kprobes report_probe(struct seq_file *pi, struct kprobe *p,
 		kprobe_type = "k";
 
 	if (sym)
-		seq_printf(pi, "%p  %s  %s+0x%x  %s ",
+		seq_printf(pi, "%pK  %s  %s+0x%x  %s ",
 			p->addr, kprobe_type, sym, offset,
 			(modname ? modname : " "));
 	else
-		seq_printf(pi, "%p  %s  %p ",
+		seq_printf(pi, "%pK  %s  %pK ",
 			p->addr, kprobe_type, p->addr);
 
 	if (!pp)
@@ -2199,7 +2199,7 @@ static int __kprobes show_kprobe_addr(struct seq_file *pi, void *v)
 	const char *sym = NULL;
 	unsigned int i = *(loff_t *) v;
 	unsigned long offset = 0;
-	char *modname, namebuf[128];
+	char *modname, namebuf[KSYM_NAME_LEN];
 
 	head = &kprobe_table[i];
 	preempt_disable();
diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index 6ada93c..dce7d5d 100644
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -46,6 +46,8 @@ static ssize_t uevent_helper_store(struct kobject *kobj,
 {
 	if (count+1 > UEVENT_HELPER_PATH_LEN)
 		return -ENOENT;
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
 	memcpy(uevent_helper, buf, count);
 	uevent_helper[count] = '\0';
 	if (count && uevent_helper[count-1] == '\n')
@@ -172,7 +174,7 @@ static ssize_t notes_read(struct file *filp, struct kobject *kobj,
 	return count;
 }
 
-static struct bin_attribute notes_attr = {
+static bin_attribute_no_const notes_attr __read_only = {
 	.attr = {
 		.name = "notes",
 		.mode = S_IRUGO,
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 8a0efac..56f1e2d 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -590,6 +590,10 @@ static int static_obj(void *obj)
 		      end   = (unsigned long) &_end,
 		      addr  = (unsigned long) obj;
 
+#ifdef CONFIG_PAX_KERNEXEC
+	start = ktla_ktva(start);
+#endif
+
 	/*
 	 * static variable?
 	 */
@@ -730,6 +734,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 	if (!static_obj(lock->key)) {
 		debug_locks_off();
 		printk("INFO: trying to register non-static key.\n");
+		printk("lock:%pS key:%pS.\n", lock, lock->key);
 		printk("the code is fine but needs lockdep annotation.\n");
 		printk("turning off the locking correctness validator.\n");
 		dump_stack();
@@ -3078,7 +3083,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
 		if (!class)
 			return 0;
 	}
-	atomic_inc((atomic_t *)&class->ops);
+	atomic_inc_unchecked((atomic_unchecked_t *)&class->ops);
 	if (very_verbose(class)) {
 		printk("\nacquire class [%p] %s", class->key, class->name);
 		if (class->name_version > 1)
diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c
index b2c71c5..7b88d63 100644
--- a/kernel/lockdep_proc.c
+++ b/kernel/lockdep_proc.c
@@ -65,7 +65,7 @@ static int l_show(struct seq_file *m, void *v)
 		return 0;
 	}
 
-	seq_printf(m, "%p", class->key);
+	seq_printf(m, "%pK", class->key);
 #ifdef CONFIG_DEBUG_LOCKDEP
 	seq_printf(m, " OPS:%8ld", class->ops);
 #endif
@@ -83,7 +83,7 @@ static int l_show(struct seq_file *m, void *v)
 
 	list_for_each_entry(entry, &class->locks_after, entry) {
 		if (entry->distance == 1) {
-			seq_printf(m, " -> [%p] ", entry->class->key);
+			seq_printf(m, " -> [%pK] ", entry->class->key);
 			print_name(m, entry->class);
 			seq_puts(m, "\n");
 		}
@@ -152,7 +152,7 @@ static int lc_show(struct seq_file *m, void *v)
 		if (!class->key)
 			continue;
 
-		seq_printf(m, "[%p] ", class->key);
+		seq_printf(m, "[%pK] ", class->key);
 		print_name(m, class);
 		seq_puts(m, "\n");
 	}
@@ -495,7 +495,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
 		if (!i)
 			seq_line(m, '-', 40-namelen, namelen);
 
-		snprintf(ip, sizeof(ip), "[<%p>]",
+		snprintf(ip, sizeof(ip), "[<%pK>]",
 				(void *)class->contention_point[i]);
 		seq_printf(m, "%40s %14lu %29s %pS\n",
 			   name, stats->contention_point[i],
@@ -510,7 +510,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
 		if (!i)
 			seq_line(m, '-', 40-namelen, namelen);
 
-		snprintf(ip, sizeof(ip), "[<%p>]",
+		snprintf(ip, sizeof(ip), "[<%pK>]",
 				(void *)class->contending_point[i]);
 		seq_printf(m, "%40s %14lu %29s %pS\n",
 			   name, stats->contending_point[i],
diff --git a/kernel/module.c b/kernel/module.c
index 0925c9a..6b044ac 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -61,6 +61,7 @@
 #include <linux/pfn.h>
 #include <linux/bsearch.h>
 #include <linux/fips.h>
+#include <linux/grsecurity.h>
 #include <uapi/linux/module.h>
 #include "module-internal.h"
 
@@ -156,7 +157,8 @@ static BLOCKING_NOTIFIER_HEAD(module_notify_list);
 
 /* Bounds of module allocation, for speeding __module_address.
  * Protected by module_mutex. */
-static unsigned long module_addr_min = -1UL, module_addr_max = 0;
+static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0;
+static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0;
 
 int register_module_notifier(struct notifier_block * nb)
 {
@@ -323,7 +325,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
 		return true;
 
 	list_for_each_entry_rcu(mod, &modules, list) {
-		struct symsearch arr[] = {
+		struct symsearch modarr[] = {
 			{ mod->syms, mod->syms + mod->num_syms, mod->crcs,
 			  NOT_GPL_ONLY, false },
 			{ mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms,
@@ -348,7 +350,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
 		if (mod->state == MODULE_STATE_UNFORMED)
 			continue;
 
-		if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data))
+		if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data))
 			return true;
 	}
 	return false;
@@ -485,7 +487,7 @@ static inline void __percpu *mod_percpu(struct module *mod)
 static int percpu_modalloc(struct module *mod,
 			   unsigned long size, unsigned long align)
 {
-	if (align > PAGE_SIZE) {
+	if (align-1 >= PAGE_SIZE) {
 		printk(KERN_WARNING "%s: per-cpu alignment %li > %li\n",
 		       mod->name, align, PAGE_SIZE);
 		align = PAGE_SIZE;
@@ -1089,7 +1091,7 @@ struct module_attribute module_uevent =
 static ssize_t show_coresize(struct module_attribute *mattr,
 			     struct module_kobject *mk, char *buffer)
 {
-	return sprintf(buffer, "%u\n", mk->mod->core_size);
+	return sprintf(buffer, "%u\n", mk->mod->core_size_rx + mk->mod->core_size_rw);
 }
 
 static struct module_attribute modinfo_coresize =
@@ -1098,7 +1100,7 @@ static struct module_attribute modinfo_coresize =
 static ssize_t show_initsize(struct module_attribute *mattr,
 			     struct module_kobject *mk, char *buffer)
 {
-	return sprintf(buffer, "%u\n", mk->mod->init_size);
+	return sprintf(buffer, "%u\n", mk->mod->init_size_rx +  mk->mod->init_size_rw);
 }
 
 static struct module_attribute modinfo_initsize =
@@ -1312,7 +1314,7 @@ resolve_symbol_wait(struct module *mod,
  */
 #ifdef CONFIG_SYSFS
 
-#ifdef CONFIG_KALLSYMS
+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 static inline bool sect_empty(const Elf_Shdr *sect)
 {
 	return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
@@ -1452,7 +1454,7 @@ static void add_notes_attrs(struct module *mod, const struct load_info *info)
 {
 	unsigned int notes, loaded, i;
 	struct module_notes_attrs *notes_attrs;
-	struct bin_attribute *nattr;
+	bin_attribute_no_const *nattr;
 
 	/* failed to create section attributes, so can't create notes */
 	if (!mod->sect_attrs)
@@ -1564,7 +1566,7 @@ static void del_usage_links(struct module *mod)
 static int module_add_modinfo_attrs(struct module *mod)
 {
 	struct module_attribute *attr;
-	struct module_attribute *temp_attr;
+	module_attribute_no_const *temp_attr;
 	int error = 0;
 	int i;
 
@@ -1778,21 +1780,21 @@ static void set_section_ro_nx(void *base,
 
 static void unset_module_core_ro_nx(struct module *mod)
 {
-	set_page_attributes(mod->module_core + mod->core_text_size,
-		mod->module_core + mod->core_size,
+	set_page_attributes(mod->module_core_rw,
+		mod->module_core_rw + mod->core_size_rw,
 		set_memory_x);
-	set_page_attributes(mod->module_core,
-		mod->module_core + mod->core_ro_size,
+	set_page_attributes(mod->module_core_rx,
+		mod->module_core_rx + mod->core_size_rx,
 		set_memory_rw);
 }
 
 static void unset_module_init_ro_nx(struct module *mod)
 {
-	set_page_attributes(mod->module_init + mod->init_text_size,
-		mod->module_init + mod->init_size,
+	set_page_attributes(mod->module_init_rw,
+		mod->module_init_rw + mod->init_size_rw,
 		set_memory_x);
-	set_page_attributes(mod->module_init,
-		mod->module_init + mod->init_ro_size,
+	set_page_attributes(mod->module_init_rx,
+		mod->module_init_rx + mod->init_size_rx,
 		set_memory_rw);
 }
 
@@ -1805,14 +1807,14 @@ void set_all_modules_text_rw(void)
 	list_for_each_entry_rcu(mod, &modules, list) {
 		if (mod->state == MODULE_STATE_UNFORMED)
 			continue;
-		if ((mod->module_core) && (mod->core_text_size)) {
-			set_page_attributes(mod->module_core,
-						mod->module_core + mod->core_text_size,
+		if ((mod->module_core_rx) && (mod->core_size_rx)) {
+			set_page_attributes(mod->module_core_rx,
+						mod->module_core_rx + mod->core_size_rx,
 						set_memory_rw);
 		}
-		if ((mod->module_init) && (mod->init_text_size)) {
-			set_page_attributes(mod->module_init,
-						mod->module_init + mod->init_text_size,
+		if ((mod->module_init_rx) && (mod->init_size_rx)) {
+			set_page_attributes(mod->module_init_rx,
+						mod->module_init_rx + mod->init_size_rx,
 						set_memory_rw);
 		}
 	}
@@ -1828,14 +1830,14 @@ void set_all_modules_text_ro(void)
 	list_for_each_entry_rcu(mod, &modules, list) {
 		if (mod->state == MODULE_STATE_UNFORMED)
 			continue;
-		if ((mod->module_core) && (mod->core_text_size)) {
-			set_page_attributes(mod->module_core,
-						mod->module_core + mod->core_text_size,
+		if ((mod->module_core_rx) && (mod->core_size_rx)) {
+			set_page_attributes(mod->module_core_rx,
+						mod->module_core_rx + mod->core_size_rx,
 						set_memory_ro);
 		}
-		if ((mod->module_init) && (mod->init_text_size)) {
-			set_page_attributes(mod->module_init,
-						mod->module_init + mod->init_text_size,
+		if ((mod->module_init_rx) && (mod->init_size_rx)) {
+			set_page_attributes(mod->module_init_rx,
+						mod->module_init_rx + mod->init_size_rx,
 						set_memory_ro);
 		}
 	}
@@ -1881,16 +1883,19 @@ static void free_module(struct module *mod)
 
 	/* This may be NULL, but that's OK */
 	unset_module_init_ro_nx(mod);
-	module_free(mod, mod->module_init);
+	module_free(mod, mod->module_init_rw);
+	module_free_exec(mod, mod->module_init_rx);
 	kfree(mod->args);
 	percpu_modfree(mod);
 
 	/* Free lock-classes: */
-	lockdep_free_key_range(mod->module_core, mod->core_size);
+	lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx);
+	lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw);
 
 	/* Finally, free the core (containing the module structure) */
 	unset_module_core_ro_nx(mod);
-	module_free(mod, mod->module_core);
+	module_free_exec(mod, mod->module_core_rx);
+	module_free(mod, mod->module_core_rw);
 
 #ifdef CONFIG_MPU
 	update_protections(current->mm);
@@ -1960,9 +1965,31 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
 	int ret = 0;
 	const struct kernel_symbol *ksym;
 
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	int is_fs_load = 0;
+	int register_filesystem_found = 0;
+	char *p;
+
+	p = strstr(mod->args, "grsec_modharden_fs");
+	if (p) {
+		char *endptr = p + sizeof("grsec_modharden_fs") - 1;
+		/* copy \0 as well */
+		memmove(p, endptr, strlen(mod->args) - (unsigned int)(endptr - mod->args) + 1);
+		is_fs_load = 1;
+	}
+#endif
+
 	for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) {
 		const char *name = info->strtab + sym[i].st_name;
 
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+		/* it's a real shame this will never get ripped and copied
+		   upstream! ;(
+		*/
+		if (is_fs_load && !strcmp(name, "register_filesystem"))
+			register_filesystem_found = 1;
+#endif
+
 		switch (sym[i].st_shndx) {
 		case SHN_COMMON:
 			/* We compiled with -fno-common.  These are not
@@ -1983,7 +2010,9 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
 			ksym = resolve_symbol_wait(mod, info, name);
 			/* Ok if resolved.  */
 			if (ksym && !IS_ERR(ksym)) {
+				pax_open_kernel();
 				sym[i].st_value = ksym->value;
+				pax_close_kernel();
 				break;
 			}
 
@@ -2002,11 +2031,20 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
 				secbase = (unsigned long)mod_percpu(mod);
 			else
 				secbase = info->sechdrs[sym[i].st_shndx].sh_addr;
+			pax_open_kernel();
 			sym[i].st_value += secbase;
+			pax_close_kernel();
 			break;
 		}
 	}
 
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	if (is_fs_load && !register_filesystem_found) {
+		printk(KERN_ALERT "grsec: Denied attempt to load non-fs module %.64s through mount\n", mod->name);
+		ret = -EPERM;
+	}
+#endif
+
 	return ret;
 }
 
@@ -2090,22 +2128,12 @@ static void layout_sections(struct module *mod, struct load_info *info)
 			    || s->sh_entsize != ~0UL
 			    || strstarts(sname, ".init"))
 				continue;
-			s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
+			if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
+				s->sh_entsize = get_offset(mod, &mod->core_size_rw, s, i);
+			else
+				s->sh_entsize = get_offset(mod, &mod->core_size_rx, s, i);
 			pr_debug("\t%s\n", sname);
 		}
-		switch (m) {
-		case 0: /* executable */
-			mod->core_size = debug_align(mod->core_size);
-			mod->core_text_size = mod->core_size;
-			break;
-		case 1: /* RO: text and ro-data */
-			mod->core_size = debug_align(mod->core_size);
-			mod->core_ro_size = mod->core_size;
-			break;
-		case 3: /* whole core */
-			mod->core_size = debug_align(mod->core_size);
-			break;
-		}
 	}
 
 	pr_debug("Init section allocation order:\n");
@@ -2119,23 +2147,13 @@ static void layout_sections(struct module *mod, struct load_info *info)
 			    || s->sh_entsize != ~0UL
 			    || !strstarts(sname, ".init"))
 				continue;
-			s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
-					 | INIT_OFFSET_MASK);
+			if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
+				s->sh_entsize = get_offset(mod, &mod->init_size_rw, s, i);
+			else
+				s->sh_entsize = get_offset(mod, &mod->init_size_rx, s, i);
+			s->sh_entsize |= INIT_OFFSET_MASK;
 			pr_debug("\t%s\n", sname);
 		}
-		switch (m) {
-		case 0: /* executable */
-			mod->init_size = debug_align(mod->init_size);
-			mod->init_text_size = mod->init_size;
-			break;
-		case 1: /* RO: text and ro-data */
-			mod->init_size = debug_align(mod->init_size);
-			mod->init_ro_size = mod->init_size;
-			break;
-		case 3: /* whole init */
-			mod->init_size = debug_align(mod->init_size);
-			break;
-		}
 	}
 }
 
@@ -2308,7 +2326,7 @@ static void layout_symtab(struct module *mod, struct load_info *info)
 
 	/* Put symbol section at end of init part of module. */
 	symsect->sh_flags |= SHF_ALLOC;
-	symsect->sh_entsize = get_offset(mod, &mod->init_size, symsect,
+	symsect->sh_entsize = get_offset(mod, &mod->init_size_rx, symsect,
 					 info->index.sym) | INIT_OFFSET_MASK;
 	pr_debug("\t%s\n", info->secstrings + symsect->sh_name);
 
@@ -2325,13 +2343,13 @@ static void layout_symtab(struct module *mod, struct load_info *info)
 	}
 
 	/* Append room for core symbols at end of core part. */
-	info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1);
-	info->stroffs = mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym);
-	mod->core_size += strtab_size;
+	info->symoffs = ALIGN(mod->core_size_rx, symsect->sh_addralign ?: 1);
+	info->stroffs = mod->core_size_rx = info->symoffs + ndst * sizeof(Elf_Sym);
+	mod->core_size_rx += strtab_size;
 
 	/* Put string table section at end of init part of module. */
 	strsect->sh_flags |= SHF_ALLOC;
-	strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect,
+	strsect->sh_entsize = get_offset(mod, &mod->init_size_rx, strsect,
 					 info->index.str) | INIT_OFFSET_MASK;
 	pr_debug("\t%s\n", info->secstrings + strsect->sh_name);
 }
@@ -2349,12 +2367,14 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
 	/* Make sure we get permanent strtab: don't use info->strtab. */
 	mod->strtab = (void *)info->sechdrs[info->index.str].sh_addr;
 
+	pax_open_kernel();
+
 	/* Set types up while we still have access to sections. */
 	for (i = 0; i < mod->num_symtab; i++)
 		mod->symtab[i].st_info = elf_type(&mod->symtab[i], info);
 
-	mod->core_symtab = dst = mod->module_core + info->symoffs;
-	mod->core_strtab = s = mod->module_core + info->stroffs;
+	mod->core_symtab = dst = mod->module_core_rx + info->symoffs;
+	mod->core_strtab = s = mod->module_core_rx + info->stroffs;
 	src = mod->symtab;
 	for (ndst = i = 0; i < mod->num_symtab; i++) {
 		if (i == 0 ||
@@ -2366,6 +2386,8 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
 		}
 	}
 	mod->core_num_syms = ndst;
+
+	pax_close_kernel();
 }
 #else
 static inline void layout_symtab(struct module *mod, struct load_info *info)
@@ -2399,17 +2421,33 @@ void * __weak module_alloc(unsigned long size)
 	return vmalloc_exec(size);
 }
 
-static void *module_alloc_update_bounds(unsigned long size)
+static void *module_alloc_update_bounds_rw(unsigned long size)
 {
 	void *ret = module_alloc(size);
 
 	if (ret) {
 		mutex_lock(&module_mutex);
 		/* Update module bounds. */
-		if ((unsigned long)ret < module_addr_min)
-			module_addr_min = (unsigned long)ret;
-		if ((unsigned long)ret + size > module_addr_max)
-			module_addr_max = (unsigned long)ret + size;
+		if ((unsigned long)ret < module_addr_min_rw)
+			module_addr_min_rw = (unsigned long)ret;
+		if ((unsigned long)ret + size > module_addr_max_rw)
+			module_addr_max_rw = (unsigned long)ret + size;
+		mutex_unlock(&module_mutex);
+	}
+	return ret;
+}
+
+static void *module_alloc_update_bounds_rx(unsigned long size)
+{
+	void *ret = module_alloc_exec(size);
+
+	if (ret) {
+		mutex_lock(&module_mutex);
+		/* Update module bounds. */
+		if ((unsigned long)ret < module_addr_min_rx)
+			module_addr_min_rx = (unsigned long)ret;
+		if ((unsigned long)ret + size > module_addr_max_rx)
+			module_addr_max_rx = (unsigned long)ret + size;
 		mutex_unlock(&module_mutex);
 	}
 	return ret;
@@ -2685,8 +2723,14 @@ static struct module *setup_load_info(struct load_info *info, int flags)
 static int check_modinfo(struct module *mod, struct load_info *info, int flags)
 {
 	const char *modmagic = get_modinfo(info, "vermagic");
+	const char *license = get_modinfo(info, "license");
 	int err;
 
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	if (!license || !license_is_gpl_compatible(license))
+		return -ENOEXEC;
+#endif
+
 	if (flags & MODULE_INIT_IGNORE_VERMAGIC)
 		modmagic = NULL;
 
@@ -2712,7 +2756,7 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
 	}
 
 	/* Set up license info based on the info section */
-	set_license(mod, get_modinfo(info, "license"));
+	set_license(mod, license);
 
 	return 0;
 }
@@ -2806,7 +2850,7 @@ static int move_module(struct module *mod, struct load_info *info)
 	void *ptr;
 
 	/* Do the allocs. */
-	ptr = module_alloc_update_bounds(mod->core_size);
+	ptr = module_alloc_update_bounds_rw(mod->core_size_rw);
 	/*
 	 * The pointer to this block is stored in the module structure
 	 * which is inside the block. Just mark it as not being a
@@ -2816,11 +2860,11 @@ static int move_module(struct module *mod, struct load_info *info)
 	if (!ptr)
 		return -ENOMEM;
 
-	memset(ptr, 0, mod->core_size);
-	mod->module_core = ptr;
+	memset(ptr, 0, mod->core_size_rw);
+	mod->module_core_rw = ptr;
 
-	if (mod->init_size) {
-		ptr = module_alloc_update_bounds(mod->init_size);
+	if (mod->init_size_rw) {
+		ptr = module_alloc_update_bounds_rw(mod->init_size_rw);
 		/*
 		 * The pointer to this block is stored in the module structure
 		 * which is inside the block. This block doesn't need to be
@@ -2829,13 +2873,45 @@ static int move_module(struct module *mod, struct load_info *info)
 		 */
 		kmemleak_ignore(ptr);
 		if (!ptr) {
-			module_free(mod, mod->module_core);
+			module_free(mod, mod->module_core_rw);
 			return -ENOMEM;
 		}
-		memset(ptr, 0, mod->init_size);
-		mod->module_init = ptr;
+		memset(ptr, 0, mod->init_size_rw);
+		mod->module_init_rw = ptr;
 	} else
-		mod->module_init = NULL;
+		mod->module_init_rw = NULL;
+
+	ptr = module_alloc_update_bounds_rx(mod->core_size_rx);
+	kmemleak_not_leak(ptr);
+	if (!ptr) {
+		if (mod->module_init_rw)
+			module_free(mod, mod->module_init_rw);
+		module_free(mod, mod->module_core_rw);
+		return -ENOMEM;
+	}
+
+	pax_open_kernel();
+	memset(ptr, 0, mod->core_size_rx);
+	pax_close_kernel();
+	mod->module_core_rx = ptr;
+
+	if (mod->init_size_rx) {
+		ptr = module_alloc_update_bounds_rx(mod->init_size_rx);
+		kmemleak_ignore(ptr);
+		if (!ptr && mod->init_size_rx) {
+			module_free_exec(mod, mod->module_core_rx);
+			if (mod->module_init_rw)
+				module_free(mod, mod->module_init_rw);
+			module_free(mod, mod->module_core_rw);
+			return -ENOMEM;
+		}
+
+		pax_open_kernel();
+		memset(ptr, 0, mod->init_size_rx);
+		pax_close_kernel();
+		mod->module_init_rx = ptr;
+	} else
+		mod->module_init_rx = NULL;
 
 	/* Transfer each section which specifies SHF_ALLOC */
 	pr_debug("final section addresses:\n");
@@ -2846,16 +2922,45 @@ static int move_module(struct module *mod, struct load_info *info)
 		if (!(shdr->sh_flags & SHF_ALLOC))
 			continue;
 
-		if (shdr->sh_entsize & INIT_OFFSET_MASK)
-			dest = mod->module_init
-				+ (shdr->sh_entsize & ~INIT_OFFSET_MASK);
-		else
-			dest = mod->module_core + shdr->sh_entsize;
+		if (shdr->sh_entsize & INIT_OFFSET_MASK) {
+			if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
+				dest = mod->module_init_rw
+					+ (shdr->sh_entsize & ~INIT_OFFSET_MASK);
+			else
+				dest = mod->module_init_rx
+					+ (shdr->sh_entsize & ~INIT_OFFSET_MASK);
+		} else {
+			if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
+				dest = mod->module_core_rw + shdr->sh_entsize;
+			else
+				dest = mod->module_core_rx + shdr->sh_entsize;
+		}
+
+		if (shdr->sh_type != SHT_NOBITS) {
+
+#ifdef CONFIG_PAX_KERNEXEC
+#ifdef CONFIG_X86_64
+			if ((shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_EXECINSTR))
+				set_memory_x((unsigned long)dest, (shdr->sh_size + PAGE_SIZE) >> PAGE_SHIFT);
+#endif
+			if (!(shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_ALLOC)) {
+				pax_open_kernel();
+				memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
+				pax_close_kernel();
+			} else
+#endif
 
-		if (shdr->sh_type != SHT_NOBITS)
 			memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
+		}
 		/* Update sh_addr to point to copy in image. */
-		shdr->sh_addr = (unsigned long)dest;
+
+#ifdef CONFIG_PAX_KERNEXEC
+		if (shdr->sh_flags & SHF_EXECINSTR)
+			shdr->sh_addr = ktva_ktla((unsigned long)dest);
+		else
+#endif
+
+			shdr->sh_addr = (unsigned long)dest;
 		pr_debug("\t0x%lx %s\n",
 			 (long)shdr->sh_addr, info->secstrings + shdr->sh_name);
 	}
@@ -2912,12 +3017,12 @@ static void flush_module_icache(const struct module *mod)
 	 * Do it before processing of module parameters, so the module
 	 * can provide parameter accessor functions of its own.
 	 */
-	if (mod->module_init)
-		flush_icache_range((unsigned long)mod->module_init,
-				   (unsigned long)mod->module_init
-				   + mod->init_size);
-	flush_icache_range((unsigned long)mod->module_core,
-			   (unsigned long)mod->module_core + mod->core_size);
+	if (mod->module_init_rx)
+		flush_icache_range((unsigned long)mod->module_init_rx,
+				   (unsigned long)mod->module_init_rx
+				   + mod->init_size_rx);
+	flush_icache_range((unsigned long)mod->module_core_rx,
+			   (unsigned long)mod->module_core_rx + mod->core_size_rx);
 
 	set_fs(old_fs);
 }
@@ -2987,8 +3092,10 @@ out:
 static void module_deallocate(struct module *mod, struct load_info *info)
 {
 	percpu_modfree(mod);
-	module_free(mod, mod->module_init);
-	module_free(mod, mod->module_core);
+	module_free_exec(mod, mod->module_init_rx);
+	module_free_exec(mod, mod->module_core_rx);
+	module_free(mod, mod->module_init_rw);
+	module_free(mod, mod->module_core_rw);
 }
 
 int __weak module_finalize(const Elf_Ehdr *hdr,
@@ -3001,7 +3108,9 @@ int __weak module_finalize(const Elf_Ehdr *hdr,
 static int post_relocation(struct module *mod, const struct load_info *info)
 {
 	/* Sort exception table now relocations are done. */
+	pax_open_kernel();
 	sort_extable(mod->extable, mod->extable + mod->num_exentries);
+	pax_close_kernel();
 
 	/* Copy relocated percpu area over. */
 	percpu_modcopy(mod, (void *)info->sechdrs[info->index.pcpu].sh_addr,
@@ -3055,16 +3164,16 @@ static int do_init_module(struct module *mod)
 			MODULE_STATE_COMING, mod);
 
 	/* Set RO and NX regions for core */
-	set_section_ro_nx(mod->module_core,
-				mod->core_text_size,
-				mod->core_ro_size,
-				mod->core_size);
+	set_section_ro_nx(mod->module_core_rx,
+				mod->core_size_rx,
+				mod->core_size_rx,
+				mod->core_size_rx);
 
 	/* Set RO and NX regions for init */
-	set_section_ro_nx(mod->module_init,
-				mod->init_text_size,
-				mod->init_ro_size,
-				mod->init_size);
+	set_section_ro_nx(mod->module_init_rx,
+				mod->init_size_rx,
+				mod->init_size_rx,
+				mod->init_size_rx);
 
 	do_mod_ctors(mod);
 	/* Start the module */
@@ -3126,11 +3235,12 @@ static int do_init_module(struct module *mod)
 	mod->strtab = mod->core_strtab;
 #endif
 	unset_module_init_ro_nx(mod);
-	module_free(mod, mod->module_init);
-	mod->module_init = NULL;
-	mod->init_size = 0;
-	mod->init_ro_size = 0;
-	mod->init_text_size = 0;
+	module_free(mod, mod->module_init_rw);
+	module_free_exec(mod, mod->module_init_rx);
+	mod->module_init_rw = NULL;
+	mod->module_init_rx = NULL;
+	mod->init_size_rw = 0;
+	mod->init_size_rx = 0;
 	mutex_unlock(&module_mutex);
 	wake_up_all(&module_wq);
 
@@ -3257,9 +3367,38 @@ static int load_module(struct load_info *info, const char __user *uargs,
 	if (err)
 		goto free_unload;
 
+	/* Now copy in args */
+	mod->args = strndup_user(uargs, ~0UL >> 1);
+	if (IS_ERR(mod->args)) {
+		err = PTR_ERR(mod->args);
+		goto free_unload;
+	}
+
 	/* Set up MODINFO_ATTR fields */
 	setup_modinfo(mod, info);
 
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	{
+		char *p, *p2;
+
+		if (strstr(mod->args, "grsec_modharden_netdev")) {
+			printk(KERN_ALERT "grsec: denied auto-loading kernel module for a network device with CAP_SYS_MODULE (deprecated).  Use CAP_NET_ADMIN and alias netdev-%.64s instead.", mod->name);
+			err = -EPERM;
+			goto free_modinfo;
+		} else if ((p = strstr(mod->args, "grsec_modharden_normal"))) {
+			p += sizeof("grsec_modharden_normal") - 1;
+			p2 = strstr(p, "_");
+			if (p2) {
+				*p2 = '\0';
+				printk(KERN_ALERT "grsec: denied kernel module auto-load of %.64s by uid %.9s\n", mod->name, p);
+				*p2 = '_';
+			}
+			err = -EPERM;
+			goto free_modinfo;
+		}
+	}
+#endif
+
 	/* Fix up syms, so that st_value is a pointer to location. */
 	err = simplify_symbols(mod, info);
 	if (err < 0)
@@ -3275,13 +3414,6 @@ static int load_module(struct load_info *info, const char __user *uargs,
 
 	flush_module_icache(mod);
 
-	/* Now copy in args */
-	mod->args = strndup_user(uargs, ~0UL >> 1);
-	if (IS_ERR(mod->args)) {
-		err = PTR_ERR(mod->args);
-		goto free_arch_cleanup;
-	}
-
 	dynamic_debug_setup(info->debug, info->num_debug);
 
 	/* Finally it's fully formed, ready to start executing. */
@@ -3316,11 +3448,10 @@ static int load_module(struct load_info *info, const char __user *uargs,
  ddebug_cleanup:
 	dynamic_debug_remove(info->debug);
 	synchronize_sched();
-	kfree(mod->args);
- free_arch_cleanup:
 	module_arch_cleanup(mod);
  free_modinfo:
 	free_modinfo(mod);
+	kfree(mod->args);
  free_unload:
 	module_unload_free(mod);
  unlink_mod:
@@ -3403,10 +3534,16 @@ static const char *get_ksymbol(struct module *mod,
 	unsigned long nextval;
 
 	/* At worse, next value is at end of module */
-	if (within_module_init(addr, mod))
-		nextval = (unsigned long)mod->module_init+mod->init_text_size;
+	if (within_module_init_rx(addr, mod))
+		nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx;
+	else if (within_module_init_rw(addr, mod))
+		nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw;
+	else if (within_module_core_rx(addr, mod))
+		nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx;
+	else if (within_module_core_rw(addr, mod))
+		nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw;
 	else
-		nextval = (unsigned long)mod->module_core+mod->core_text_size;
+		return NULL;
 
 	/* Scan for closest preceding symbol, and next symbol. (ELF
 	   starts real symbols at 1). */
@@ -3659,7 +3796,7 @@ static int m_show(struct seq_file *m, void *p)
 		return 0;
 
 	seq_printf(m, "%s %u",
-		   mod->name, mod->init_size + mod->core_size);
+		   mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw);
 	print_unload_info(m, mod);
 
 	/* Informative for users. */
@@ -3668,7 +3805,7 @@ static int m_show(struct seq_file *m, void *p)
 		   mod->state == MODULE_STATE_COMING ? "Loading":
 		   "Live");
 	/* Used by oprofile and other similar tools. */
-	seq_printf(m, " 0x%pK", mod->module_core);
+	seq_printf(m, " 0x%pK 0x%pK", mod->module_core_rx, mod->module_core_rw);
 
 	/* Taints info */
 	if (mod->taints)
@@ -3704,7 +3841,17 @@ static const struct file_operations proc_modules_operations = {
 
 static int __init proc_modules_init(void)
 {
+#ifndef CONFIG_GRKERNSEC_HIDESYM
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	proc_create("modules", S_IRUSR | S_IRGRP, NULL, &proc_modules_operations);
+#else
 	proc_create("modules", 0, NULL, &proc_modules_operations);
+#endif
+#else
+	proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
+#endif
 	return 0;
 }
 module_init(proc_modules_init);
@@ -3765,14 +3912,14 @@ struct module *__module_address(unsigned long addr)
 {
 	struct module *mod;
 
-	if (addr < module_addr_min || addr > module_addr_max)
+	if ((addr < module_addr_min_rx || addr > module_addr_max_rx) &&
+	    (addr < module_addr_min_rw || addr > module_addr_max_rw))
 		return NULL;
 
 	list_for_each_entry_rcu(mod, &modules, list) {
 		if (mod->state == MODULE_STATE_UNFORMED)
 			continue;
-		if (within_module_core(addr, mod)
-		    || within_module_init(addr, mod))
+		if (within_module_init(addr, mod) || within_module_core(addr, mod))
 			return mod;
 	}
 	return NULL;
@@ -3807,11 +3954,20 @@ bool is_module_text_address(unsigned long addr)
  */
 struct module *__module_text_address(unsigned long addr)
 {
-	struct module *mod = __module_address(addr);
+	struct module *mod;
+
+#ifdef CONFIG_X86_32
+	addr = ktla_ktva(addr);
+#endif
+
+	if (addr < module_addr_min_rx || addr > module_addr_max_rx)
+		return NULL;
+
+	mod = __module_address(addr);
+
 	if (mod) {
 		/* Make sure it's within the text section. */
-		if (!within(addr, mod->module_init, mod->init_text_size)
-		    && !within(addr, mod->module_core, mod->core_text_size))
+		if (!within_module_init_rx(addr, mod) && !within_module_core_rx(addr, mod))
 			mod = NULL;
 	}
 	return mod;
diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c
index 7e3443f..b2a1e6b 100644
--- a/kernel/mutex-debug.c
+++ b/kernel/mutex-debug.c
@@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mutex_waiter *waiter)
 }
 
 void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
-			    struct thread_info *ti)
+			    struct task_struct *task)
 {
 	SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
 
 	/* Mark the current thread as blocked on the lock: */
-	ti->task->blocked_on = waiter;
+	task->blocked_on = waiter;
 }
 
 void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
-			 struct thread_info *ti)
+			 struct task_struct *task)
 {
 	DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
-	DEBUG_LOCKS_WARN_ON(waiter->task != ti->task);
-	DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter);
-	ti->task->blocked_on = NULL;
+	DEBUG_LOCKS_WARN_ON(waiter->task != task);
+	DEBUG_LOCKS_WARN_ON(task->blocked_on != waiter);
+	task->blocked_on = NULL;
 
 	list_del_init(&waiter->list);
 	waiter->task = NULL;
diff --git a/kernel/mutex-debug.h b/kernel/mutex-debug.h
index 0799fd3..d06ae3b 100644
--- a/kernel/mutex-debug.h
+++ b/kernel/mutex-debug.h
@@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(struct mutex *lock,
 extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
 extern void debug_mutex_add_waiter(struct mutex *lock,
 				   struct mutex_waiter *waiter,
-				   struct thread_info *ti);
+				   struct task_struct *task);
 extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
-				struct thread_info *ti);
+				struct task_struct *task);
 extern void debug_mutex_unlock(struct mutex *lock);
 extern void debug_mutex_init(struct mutex *lock, const char *name,
 			     struct lock_class_key *key);
diff --git a/kernel/mutex.c b/kernel/mutex.c
index 52f2301..73f7528 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -199,7 +199,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
 	spin_lock_mutex(&lock->wait_lock, flags);
 
 	debug_mutex_lock_common(lock, &waiter);
-	debug_mutex_add_waiter(lock, &waiter, task_thread_info(task));
+	debug_mutex_add_waiter(lock, &waiter, task);
 
 	/* add waiting tasks to the end of the waitqueue (FIFO): */
 	list_add_tail(&waiter.list, &lock->wait_list);
@@ -228,8 +228,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
 		 * TASK_UNINTERRUPTIBLE case.)
 		 */
 		if (unlikely(signal_pending_state(state, task))) {
-			mutex_remove_waiter(lock, &waiter,
-					    task_thread_info(task));
+			mutex_remove_waiter(lock, &waiter, task);
 			mutex_release(&lock->dep_map, 1, ip);
 			spin_unlock_mutex(&lock->wait_lock, flags);
 
@@ -248,7 +247,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
 done:
 	lock_acquired(&lock->dep_map, ip);
 	/* got the lock - rejoice! */
-	mutex_remove_waiter(lock, &waiter, current_thread_info());
+	mutex_remove_waiter(lock, &waiter, task);
 	mutex_set_owner(lock);
 
 	/* set it to 0 if there are no waiters left: */
diff --git a/kernel/notifier.c b/kernel/notifier.c
index 2d5cc4c..d9ea600 100644
--- a/kernel/notifier.c
+++ b/kernel/notifier.c
@@ -5,6 +5,7 @@
 #include <linux/rcupdate.h>
 #include <linux/vmalloc.h>
 #include <linux/reboot.h>
+#include <linux/mm.h>
 
 /*
  *	Notifier list for kernel code which wants to be called
@@ -24,10 +25,12 @@ static int notifier_chain_register(struct notifier_block **nl,
 	while ((*nl) != NULL) {
 		if (n->priority > (*nl)->priority)
 			break;
-		nl = &((*nl)->next);
+		nl = (struct notifier_block **)&((*nl)->next);
 	}
-	n->next = *nl;
+	pax_open_kernel();
+	*(const void **)&n->next = *nl;
 	rcu_assign_pointer(*nl, n);
+	pax_close_kernel();
 	return 0;
 }
 
@@ -39,10 +42,12 @@ static int notifier_chain_cond_register(struct notifier_block **nl,
 			return 0;
 		if (n->priority > (*nl)->priority)
 			break;
-		nl = &((*nl)->next);
+		nl = (struct notifier_block **)&((*nl)->next);
 	}
-	n->next = *nl;
+	pax_open_kernel();
+	*(const void **)&n->next = *nl;
 	rcu_assign_pointer(*nl, n);
+	pax_close_kernel();
 	return 0;
 }
 
@@ -51,10 +56,12 @@ static int notifier_chain_unregister(struct notifier_block **nl,
 {
 	while ((*nl) != NULL) {
 		if ((*nl) == n) {
+			pax_open_kernel();
 			rcu_assign_pointer(*nl, n->next);
+			pax_close_kernel();
 			return 0;
 		}
-		nl = &((*nl)->next);
+		nl = (struct notifier_block **)&((*nl)->next);
 	}
 	return -ENOENT;
 }
diff --git a/kernel/panic.c b/kernel/panic.c
index 7c57cc9..28f1b3f 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -403,7 +403,7 @@ static void warn_slowpath_common(const char *file, int line, void *caller,
 	const char *board;
 
 	printk(KERN_WARNING "------------[ cut here ]------------\n");
-	printk(KERN_WARNING "WARNING: at %s:%d %pS()\n", file, line, caller);
+	printk(KERN_WARNING "WARNING: at %s:%d %pA()\n", file, line, caller);
 	board = dmi_get_system_info(DMI_PRODUCT_NAME);
 	if (board)
 		printk(KERN_WARNING "Hardware name: %s\n", board);
@@ -459,7 +459,8 @@ EXPORT_SYMBOL(warn_slowpath_null);
  */
 void __stack_chk_fail(void)
 {
-	panic("stack-protector: Kernel stack is corrupted in: %p\n",
+	dump_stack();
+	panic("stack-protector: Kernel stack is corrupted in: %pA\n",
 		__builtin_return_address(0));
 }
 EXPORT_SYMBOL(__stack_chk_fail);
diff --git a/kernel/pid.c b/kernel/pid.c
index 047dc62..418d74b 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -33,6 +33,7 @@
 #include <linux/rculist.h>
 #include <linux/bootmem.h>
 #include <linux/hash.h>
+#include <linux/security.h>
 #include <linux/pid_namespace.h>
 #include <linux/init_task.h>
 #include <linux/syscalls.h>
@@ -46,7 +47,7 @@ struct pid init_struct_pid = INIT_STRUCT_PID;
 
 int pid_max = PID_MAX_DEFAULT;
 
-#define RESERVED_PIDS		300
+#define RESERVED_PIDS		500
 
 int pid_max_min = RESERVED_PIDS + 1;
 int pid_max_max = PID_MAX_LIMIT;
@@ -440,10 +441,18 @@ EXPORT_SYMBOL(pid_task);
  */
 struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
 {
+	struct task_struct *task;
+
 	rcu_lockdep_assert(rcu_read_lock_held(),
 			   "find_task_by_pid_ns() needs rcu_read_lock()"
 			   " protection");
-	return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
+
+	task = pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
+
+	if (gr_pid_is_chrooted(task))
+		return NULL;
+
+	return task;
 }
 
 struct task_struct *find_task_by_vpid(pid_t vnr)
@@ -451,6 +460,14 @@ struct task_struct *find_task_by_vpid(pid_t vnr)
 	return find_task_by_pid_ns(vnr, task_active_pid_ns(current));
 }
 
+struct task_struct *find_task_by_vpid_unrestricted(pid_t vnr)
+{
+	rcu_lockdep_assert(rcu_read_lock_held(),
+			   "find_task_by_pid_ns() needs rcu_read_lock()"
+			   " protection");
+	return pid_task(find_pid_ns(vnr, task_active_pid_ns(current)), PIDTYPE_PID);
+}
+
 struct pid *get_task_pid(struct task_struct *task, enum pid_type type)
 {
 	struct pid *pid;
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index bea15bd..789f3d0 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -249,7 +249,7 @@ static int pid_ns_ctl_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct pid_namespace *pid_ns = task_active_pid_ns(current);
-	struct ctl_table tmp = *table;
+	ctl_table_no_const tmp = *table;
 
 	if (write && !ns_capable(pid_ns->user_ns, CAP_SYS_ADMIN))
 		return -EPERM;
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 8fd709c..542bf4b 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -1592,14 +1592,14 @@ struct k_clock clock_posix_cpu = {
 
 static __init int init_posix_cpu_timers(void)
 {
-	struct k_clock process = {
+	static struct k_clock process = {
 		.clock_getres	= process_cpu_clock_getres,
 		.clock_get	= process_cpu_clock_get,
 		.timer_create	= process_cpu_timer_create,
 		.nsleep		= process_cpu_nsleep,
 		.nsleep_restart	= process_cpu_nsleep_restart,
 	};
-	struct k_clock thread = {
+	static struct k_clock thread = {
 		.clock_getres	= thread_cpu_clock_getres,
 		.clock_get	= thread_cpu_clock_get,
 		.timer_create	= thread_cpu_timer_create,
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 6edbb2c..334f085 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -43,6 +43,7 @@
 #include <linux/idr.h>
 #include <linux/posix-clock.h>
 #include <linux/posix-timers.h>
+#include <linux/grsecurity.h>
 #include <linux/syscalls.h>
 #include <linux/wait.h>
 #include <linux/workqueue.h>
@@ -129,7 +130,7 @@ static DEFINE_SPINLOCK(idr_lock);
  *	    which we beg off on and pass to do_sys_settimeofday().
  */
 
-static struct k_clock posix_clocks[MAX_CLOCKS];
+static struct k_clock *posix_clocks[MAX_CLOCKS];
 
 /*
  * These ones are defined below.
@@ -227,7 +228,7 @@ static int posix_get_boottime(const clockid_t which_clock, struct timespec *tp)
  */
 static __init int init_posix_timers(void)
 {
-	struct k_clock clock_realtime = {
+	static struct k_clock clock_realtime = {
 		.clock_getres	= hrtimer_get_res,
 		.clock_get	= posix_clock_realtime_get,
 		.clock_set	= posix_clock_realtime_set,
@@ -239,7 +240,7 @@ static __init int init_posix_timers(void)
 		.timer_get	= common_timer_get,
 		.timer_del	= common_timer_del,
 	};
-	struct k_clock clock_monotonic = {
+	static struct k_clock clock_monotonic = {
 		.clock_getres	= hrtimer_get_res,
 		.clock_get	= posix_ktime_get_ts,
 		.nsleep		= common_nsleep,
@@ -249,19 +250,19 @@ static __init int init_posix_timers(void)
 		.timer_get	= common_timer_get,
 		.timer_del	= common_timer_del,
 	};
-	struct k_clock clock_monotonic_raw = {
+	static struct k_clock clock_monotonic_raw = {
 		.clock_getres	= hrtimer_get_res,
 		.clock_get	= posix_get_monotonic_raw,
 	};
-	struct k_clock clock_realtime_coarse = {
+	static struct k_clock clock_realtime_coarse = {
 		.clock_getres	= posix_get_coarse_res,
 		.clock_get	= posix_get_realtime_coarse,
 	};
-	struct k_clock clock_monotonic_coarse = {
+	static struct k_clock clock_monotonic_coarse = {
 		.clock_getres	= posix_get_coarse_res,
 		.clock_get	= posix_get_monotonic_coarse,
 	};
-	struct k_clock clock_boottime = {
+	static struct k_clock clock_boottime = {
 		.clock_getres	= hrtimer_get_res,
 		.clock_get	= posix_get_boottime,
 		.nsleep		= common_nsleep,
@@ -473,7 +474,7 @@ void posix_timers_register_clock(const clockid_t clock_id,
 		return;
 	}
 
-	posix_clocks[clock_id] = *new_clock;
+	posix_clocks[clock_id] = new_clock;
 }
 EXPORT_SYMBOL_GPL(posix_timers_register_clock);
 
@@ -519,9 +520,9 @@ static struct k_clock *clockid_to_kclock(const clockid_t id)
 		return (id & CLOCKFD_MASK) == CLOCKFD ?
 			&clock_posix_dynamic : &clock_posix_cpu;
 
-	if (id >= MAX_CLOCKS || !posix_clocks[id].clock_getres)
+	if (id >= MAX_CLOCKS || !posix_clocks[id] || !posix_clocks[id]->clock_getres)
 		return NULL;
-	return &posix_clocks[id];
+	return posix_clocks[id];
 }
 
 static int common_timer_create(struct k_itimer *new_timer)
@@ -964,6 +965,13 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
 	if (copy_from_user(&new_tp, tp, sizeof (*tp)))
 		return -EFAULT;
 
+	/* only the CLOCK_REALTIME clock can be set, all other clocks
+	   have their clock_set fptr set to a nosettime dummy function
+	   CLOCK_REALTIME has a NULL clock_set fptr which causes it to
+	   call common_clock_set, which calls do_sys_settimeofday, which
+	   we hook
+	*/
+
 	return kc->clock_set(which_clock, &new_tp);
 }
 
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 98088e0..aaf95c0 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -33,6 +33,7 @@ static int try_to_freeze_tasks(bool user_only)
 	u64 elapsed_csecs64;
 	unsigned int elapsed_csecs;
 	bool wakeup = false;
+	bool timedout = false;
 
 	do_gettimeofday(&start);
 
@@ -43,13 +44,20 @@ static int try_to_freeze_tasks(bool user_only)
 
 	while (true) {
 		todo = 0;
+		if (time_after(jiffies, end_time))
+			timedout = true;
 		read_lock(&tasklist_lock);
 		do_each_thread(g, p) {
 			if (p == current || !freeze_task(p))
 				continue;
 
-			if (!freezer_should_skip(p))
+			if (!freezer_should_skip(p)) {
 				todo++;
+				if (timedout) {
+					printk(KERN_ERR "Task refusing to freeze:\n");
+					sched_show_task(p);
+				}
+			}
 		} while_each_thread(g, p);
 		read_unlock(&tasklist_lock);
 
@@ -58,7 +66,7 @@ static int try_to_freeze_tasks(bool user_only)
 			todo += wq_busy;
 		}
 
-		if (!todo || time_after(jiffies, end_time))
+		if (!todo || timedout)
 			break;
 
 		if (pm_wakeup_pending()) {
diff --git a/kernel/printk.c b/kernel/printk.c
index abbdd9e..f294251 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -615,11 +615,17 @@ static unsigned int devkmsg_poll(struct file *file, poll_table *wait)
 	return ret;
 }
 
+static int check_syslog_permissions(int type, bool from_file);
+
 static int devkmsg_open(struct inode *inode, struct file *file)
 {
 	struct devkmsg_user *user;
 	int err;
 
+	err = check_syslog_permissions(SYSLOG_ACTION_OPEN, SYSLOG_FROM_FILE);
+	if (err)
+		return err;
+
 	/* write-only does not need any file context */
 	if ((file->f_flags & O_ACCMODE) == O_WRONLY)
 		return 0;
@@ -828,7 +834,7 @@ static int syslog_action_restricted(int type)
 	if (dmesg_restrict)
 		return 1;
 	/* Unless restricted, we allow "read all" and "get buffer size" for everybody */
-	return type != SYSLOG_ACTION_READ_ALL && type != SYSLOG_ACTION_SIZE_BUFFER;
+	return type != SYSLOG_ACTION_OPEN && type != SYSLOG_ACTION_READ_ALL && type != SYSLOG_ACTION_SIZE_BUFFER;
 }
 
 static int check_syslog_permissions(int type, bool from_file)
@@ -840,6 +846,11 @@ static int check_syslog_permissions(int type, bool from_file)
 	if (from_file && type != SYSLOG_ACTION_OPEN)
 		return 0;
 
+#ifdef CONFIG_GRKERNSEC_DMESG
+	if (grsec_enable_dmesg && !capable(CAP_SYSLOG) && !capable_nolog(CAP_SYS_ADMIN))
+		return -EPERM;
+#endif
+
 	if (syslog_action_restricted(type)) {
 		if (capable(CAP_SYSLOG))
 			return 0;
diff --git a/kernel/profile.c b/kernel/profile.c
index dc3384e..0de5b49 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -37,7 +37,7 @@ struct profile_hit {
 #define NR_PROFILE_HIT		(PAGE_SIZE/sizeof(struct profile_hit))
 #define NR_PROFILE_GRP		(NR_PROFILE_HIT/PROFILE_GRPSZ)
 
-static atomic_t *prof_buffer;
+static atomic_unchecked_t *prof_buffer;
 static unsigned long prof_len, prof_shift;
 
 int prof_on __read_mostly;
@@ -260,7 +260,7 @@ static void profile_flip_buffers(void)
 					hits[i].pc = 0;
 				continue;
 			}
-			atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
+			atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
 			hits[i].hits = hits[i].pc = 0;
 		}
 	}
@@ -321,9 +321,9 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
 	 * Add the current hit(s) and flush the write-queue out
 	 * to the global buffer:
 	 */
-	atomic_add(nr_hits, &prof_buffer[pc]);
+	atomic_add_unchecked(nr_hits, &prof_buffer[pc]);
 	for (i = 0; i < NR_PROFILE_HIT; ++i) {
-		atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
+		atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
 		hits[i].pc = hits[i].hits = 0;
 	}
 out:
@@ -398,7 +398,7 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
 {
 	unsigned long pc;
 	pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift;
-	atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
+	atomic_add_unchecked(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
 }
 #endif /* !CONFIG_SMP */
 
@@ -494,7 +494,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 			return -EFAULT;
 		buf++; p++; count--; read++;
 	}
-	pnt = (char *)prof_buffer + p - sizeof(atomic_t);
+	pnt = (char *)prof_buffer + p - sizeof(atomic_unchecked_t);
 	if (copy_to_user(buf, (void *)pnt, count))
 		return -EFAULT;
 	read += count;
@@ -525,7 +525,7 @@ static ssize_t write_profile(struct file *file, const char __user *buf,
 	}
 #endif
 	profile_discard_flip_buffers();
-	memset(prof_buffer, 0, prof_len * sizeof(atomic_t));
+	memset(prof_buffer, 0, prof_len * sizeof(atomic_unchecked_t));
 	return count;
 }
 
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index acbd284..00bb0c9 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -324,7 +324,7 @@ static int ptrace_attach(struct task_struct *task, long request,
 	if (seize)
 		flags |= PT_SEIZED;
 	rcu_read_lock();
-	if (ns_capable(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
+	if (ns_capable_nolog(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
 		flags |= PT_PTRACE_CAP;
 	rcu_read_unlock();
 	task->ptrace = flags;
@@ -535,7 +535,7 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst
 				break;
 			return -EIO;
 		}
-		if (copy_to_user(dst, buf, retval))
+		if (retval > sizeof(buf) || copy_to_user(dst, buf, retval))
 			return -EFAULT;
 		copied += retval;
 		src += retval;
@@ -726,7 +726,7 @@ int ptrace_request(struct task_struct *child, long request,
 	bool seized = child->ptrace & PT_SEIZED;
 	int ret = -EIO;
 	siginfo_t siginfo, *si;
-	void __user *datavp = (void __user *) data;
+	void __user *datavp = (__force void __user *) data;
 	unsigned long __user *datalp = datavp;
 	unsigned long flags;
 
@@ -928,14 +928,21 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr,
 		goto out;
 	}
 
+	if (gr_handle_ptrace(child, request)) {
+		ret = -EPERM;
+		goto out_put_task_struct;
+	}
+
 	if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
 		ret = ptrace_attach(child, request, addr, data);
 		/*
 		 * Some architectures need to do book-keeping after
 		 * a ptrace attach.
 		 */
-		if (!ret)
+		if (!ret) {
 			arch_ptrace_attach(child);
+			gr_audit_ptrace(child);
+		}
 		goto out_put_task_struct;
 	}
 
@@ -963,7 +970,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr,
 	copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0);
 	if (copied != sizeof(tmp))
 		return -EIO;
-	return put_user(tmp, (unsigned long __user *)data);
+	return put_user(tmp, (__force unsigned long __user *)data);
 }
 
 int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr,
@@ -1057,7 +1064,7 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
 }
 
 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
-				  compat_long_t addr, compat_long_t data)
+				  compat_ulong_t addr, compat_ulong_t data)
 {
 	struct task_struct *child;
 	long ret;
@@ -1073,14 +1080,21 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
 		goto out;
 	}
 
+	if (gr_handle_ptrace(child, request)) {
+		ret = -EPERM;
+		goto out_put_task_struct;
+	}
+
 	if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
 		ret = ptrace_attach(child, request, addr, data);
 		/*
 		 * Some architectures need to do book-keeping after
 		 * a ptrace attach.
 		 */
-		if (!ret)
+		if (!ret) {
 			arch_ptrace_attach(child);
+			gr_audit_ptrace(child);
+		}
 		goto out_put_task_struct;
 	}
 
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 48ab703..07561d4 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -439,10 +439,10 @@ int rcu_jiffies_till_stall_check(void)
 	 * for CONFIG_RCU_CPU_STALL_TIMEOUT.
 	 */
 	if (till_stall_check < 3) {
-		ACCESS_ONCE(rcu_cpu_stall_timeout) = 3;
+		ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 3;
 		till_stall_check = 3;
 	} else if (till_stall_check > 300) {
-		ACCESS_ONCE(rcu_cpu_stall_timeout) = 300;
+		ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 300;
 		till_stall_check = 300;
 	}
 	return till_stall_check * HZ + RCU_STALL_DELAY_DELTA;
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index a0714a5..2ab5e34 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -46,7 +46,7 @@
 struct rcu_ctrlblk;
 static void invoke_rcu_callbacks(void);
 static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp);
-static void rcu_process_callbacks(struct softirq_action *unused);
+static void rcu_process_callbacks(void);
 static void __call_rcu(struct rcu_head *head,
 		       void (*func)(struct rcu_head *rcu),
 		       struct rcu_ctrlblk *rcp);
@@ -312,7 +312,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
 				      rcu_is_callbacks_kthread()));
 }
 
-static void rcu_process_callbacks(struct softirq_action *unused)
+static void rcu_process_callbacks(void)
 {
 	__rcu_process_callbacks(&rcu_sched_ctrlblk);
 	__rcu_process_callbacks(&rcu_bh_ctrlblk);
diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
index 8a23300..4255818 100644
--- a/kernel/rcutiny_plugin.h
+++ b/kernel/rcutiny_plugin.h
@@ -945,7 +945,7 @@ static int rcu_kthread(void *arg)
 		have_rcu_kthread_work = morework;
 		local_irq_restore(flags);
 		if (work)
-			rcu_process_callbacks(NULL);
+			rcu_process_callbacks();
 		schedule_timeout_interruptible(1); /* Leave CPU for others. */
 	}
 
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index e1f3a8c..42c94a2 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -164,12 +164,12 @@ static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) =
 	{ 0 };
 static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) =
 	{ 0 };
-static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
-static atomic_t n_rcu_torture_alloc;
-static atomic_t n_rcu_torture_alloc_fail;
-static atomic_t n_rcu_torture_free;
-static atomic_t n_rcu_torture_mberror;
-static atomic_t n_rcu_torture_error;
+static atomic_unchecked_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
+static atomic_unchecked_t n_rcu_torture_alloc;
+static atomic_unchecked_t n_rcu_torture_alloc_fail;
+static atomic_unchecked_t n_rcu_torture_free;
+static atomic_unchecked_t n_rcu_torture_mberror;
+static atomic_unchecked_t n_rcu_torture_error;
 static long n_rcu_torture_barrier_error;
 static long n_rcu_torture_boost_ktrerror;
 static long n_rcu_torture_boost_rterror;
@@ -287,11 +287,11 @@ rcu_torture_alloc(void)
 
 	spin_lock_bh(&rcu_torture_lock);
 	if (list_empty(&rcu_torture_freelist)) {
-		atomic_inc(&n_rcu_torture_alloc_fail);
+		atomic_inc_unchecked(&n_rcu_torture_alloc_fail);
 		spin_unlock_bh(&rcu_torture_lock);
 		return NULL;
 	}
-	atomic_inc(&n_rcu_torture_alloc);
+	atomic_inc_unchecked(&n_rcu_torture_alloc);
 	p = rcu_torture_freelist.next;
 	list_del_init(p);
 	spin_unlock_bh(&rcu_torture_lock);
@@ -304,7 +304,7 @@ rcu_torture_alloc(void)
 static void
 rcu_torture_free(struct rcu_torture *p)
 {
-	atomic_inc(&n_rcu_torture_free);
+	atomic_inc_unchecked(&n_rcu_torture_free);
 	spin_lock_bh(&rcu_torture_lock);
 	list_add_tail(&p->rtort_free, &rcu_torture_freelist);
 	spin_unlock_bh(&rcu_torture_lock);
@@ -424,7 +424,7 @@ rcu_torture_cb(struct rcu_head *p)
 	i = rp->rtort_pipe_count;
 	if (i > RCU_TORTURE_PIPE_LEN)
 		i = RCU_TORTURE_PIPE_LEN;
-	atomic_inc(&rcu_torture_wcount[i]);
+	atomic_inc_unchecked(&rcu_torture_wcount[i]);
 	if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
 		rp->rtort_mbtest = 0;
 		rcu_torture_free(rp);
@@ -472,7 +472,7 @@ static void rcu_sync_torture_deferred_free(struct rcu_torture *p)
 		i = rp->rtort_pipe_count;
 		if (i > RCU_TORTURE_PIPE_LEN)
 			i = RCU_TORTURE_PIPE_LEN;
-		atomic_inc(&rcu_torture_wcount[i]);
+		atomic_inc_unchecked(&rcu_torture_wcount[i]);
 		if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
 			rp->rtort_mbtest = 0;
 			list_del(&rp->rtort_free);
@@ -990,7 +990,7 @@ rcu_torture_writer(void *arg)
 			i = old_rp->rtort_pipe_count;
 			if (i > RCU_TORTURE_PIPE_LEN)
 				i = RCU_TORTURE_PIPE_LEN;
-			atomic_inc(&rcu_torture_wcount[i]);
+			atomic_inc_unchecked(&rcu_torture_wcount[i]);
 			old_rp->rtort_pipe_count++;
 			cur_ops->deferred_free(old_rp);
 		}
@@ -1076,7 +1076,7 @@ static void rcu_torture_timer(unsigned long unused)
 		return;
 	}
 	if (p->rtort_mbtest == 0)
-		atomic_inc(&n_rcu_torture_mberror);
+		atomic_inc_unchecked(&n_rcu_torture_mberror);
 	spin_lock(&rand_lock);
 	cur_ops->read_delay(&rand);
 	n_rcu_torture_timers++;
@@ -1146,7 +1146,7 @@ rcu_torture_reader(void *arg)
 			continue;
 		}
 		if (p->rtort_mbtest == 0)
-			atomic_inc(&n_rcu_torture_mberror);
+			atomic_inc_unchecked(&n_rcu_torture_mberror);
 		cur_ops->read_delay(&rand);
 		preempt_disable();
 		pipe_count = p->rtort_pipe_count;
@@ -1209,11 +1209,11 @@ rcu_torture_printk(char *page)
 		       rcu_torture_current,
 		       rcu_torture_current_version,
 		       list_empty(&rcu_torture_freelist),
-		       atomic_read(&n_rcu_torture_alloc),
-		       atomic_read(&n_rcu_torture_alloc_fail),
-		       atomic_read(&n_rcu_torture_free));
+		       atomic_read_unchecked(&n_rcu_torture_alloc),
+		       atomic_read_unchecked(&n_rcu_torture_alloc_fail),
+		       atomic_read_unchecked(&n_rcu_torture_free));
 	cnt += sprintf(&page[cnt], "rtmbe: %d rtbke: %ld rtbre: %ld ",
-		       atomic_read(&n_rcu_torture_mberror),
+		       atomic_read_unchecked(&n_rcu_torture_mberror),
 		       n_rcu_torture_boost_ktrerror,
 		       n_rcu_torture_boost_rterror);
 	cnt += sprintf(&page[cnt], "rtbf: %ld rtb: %ld nt: %ld ",
@@ -1232,14 +1232,14 @@ rcu_torture_printk(char *page)
 		       n_barrier_attempts,
 		       n_rcu_torture_barrier_error);
 	cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
-	if (atomic_read(&n_rcu_torture_mberror) != 0 ||
+	if (atomic_read_unchecked(&n_rcu_torture_mberror) != 0 ||
 	    n_rcu_torture_barrier_error != 0 ||
 	    n_rcu_torture_boost_ktrerror != 0 ||
 	    n_rcu_torture_boost_rterror != 0 ||
 	    n_rcu_torture_boost_failure != 0 ||
 	    i > 1) {
 		cnt += sprintf(&page[cnt], "!!! ");
-		atomic_inc(&n_rcu_torture_error);
+		atomic_inc_unchecked(&n_rcu_torture_error);
 		WARN_ON_ONCE(1);
 	}
 	cnt += sprintf(&page[cnt], "Reader Pipe: ");
@@ -1253,7 +1253,7 @@ rcu_torture_printk(char *page)
 	cnt += sprintf(&page[cnt], "Free-Block Circulation: ");
 	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
 		cnt += sprintf(&page[cnt], " %d",
-			       atomic_read(&rcu_torture_wcount[i]));
+			       atomic_read_unchecked(&rcu_torture_wcount[i]));
 	}
 	cnt += sprintf(&page[cnt], "\n");
 	if (cur_ops->stats)
@@ -1962,7 +1962,7 @@ rcu_torture_cleanup(void)
 
 	rcu_torture_stats_print();  /* -After- the stats thread is stopped! */
 
-	if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
+	if (atomic_read_unchecked(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
 		rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
 	else if (n_online_successes != n_online_attempts ||
 		 n_offline_successes != n_offline_attempts)
@@ -2031,18 +2031,18 @@ rcu_torture_init(void)
 
 	rcu_torture_current = NULL;
 	rcu_torture_current_version = 0;
-	atomic_set(&n_rcu_torture_alloc, 0);
-	atomic_set(&n_rcu_torture_alloc_fail, 0);
-	atomic_set(&n_rcu_torture_free, 0);
-	atomic_set(&n_rcu_torture_mberror, 0);
-	atomic_set(&n_rcu_torture_error, 0);
+	atomic_set_unchecked(&n_rcu_torture_alloc, 0);
+	atomic_set_unchecked(&n_rcu_torture_alloc_fail, 0);
+	atomic_set_unchecked(&n_rcu_torture_free, 0);
+	atomic_set_unchecked(&n_rcu_torture_mberror, 0);
+	atomic_set_unchecked(&n_rcu_torture_error, 0);
 	n_rcu_torture_barrier_error = 0;
 	n_rcu_torture_boost_ktrerror = 0;
 	n_rcu_torture_boost_rterror = 0;
 	n_rcu_torture_boost_failure = 0;
 	n_rcu_torture_boosts = 0;
 	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
-		atomic_set(&rcu_torture_wcount[i], 0);
+		atomic_set_unchecked(&rcu_torture_wcount[i], 0);
 	for_each_possible_cpu(cpu) {
 		for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
 			per_cpu(rcu_torture_count, cpu)[i] = 0;
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 5b8ad82..17274d1 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -353,9 +353,9 @@ static void rcu_eqs_enter_common(struct rcu_dynticks *rdtp, long long oldval,
 	rcu_prepare_for_idle(smp_processor_id());
 	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
 	smp_mb__before_atomic_inc();  /* See above. */
-	atomic_inc(&rdtp->dynticks);
+	atomic_inc_unchecked(&rdtp->dynticks);
 	smp_mb__after_atomic_inc();  /* Force ordering with next sojourn. */
-	WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
+	WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
 
 	/*
 	 * It is illegal to enter an extended quiescent state while
@@ -491,10 +491,10 @@ static void rcu_eqs_exit_common(struct rcu_dynticks *rdtp, long long oldval,
 			       int user)
 {
 	smp_mb__before_atomic_inc();  /* Force ordering w/previous sojourn. */
-	atomic_inc(&rdtp->dynticks);
+	atomic_inc_unchecked(&rdtp->dynticks);
 	/* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
 	smp_mb__after_atomic_inc();  /* See above. */
-	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
+	WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
 	rcu_cleanup_after_idle(smp_processor_id());
 	trace_rcu_dyntick("End", oldval, rdtp->dynticks_nesting);
 	if (!user && !is_idle_task(current)) {
@@ -633,14 +633,14 @@ void rcu_nmi_enter(void)
 	struct rcu_dynticks *rdtp = &__get_cpu_var(rcu_dynticks);
 
 	if (rdtp->dynticks_nmi_nesting == 0 &&
-	    (atomic_read(&rdtp->dynticks) & 0x1))
+	    (atomic_read_unchecked(&rdtp->dynticks) & 0x1))
 		return;
 	rdtp->dynticks_nmi_nesting++;
 	smp_mb__before_atomic_inc();  /* Force delay from prior write. */
-	atomic_inc(&rdtp->dynticks);
+	atomic_inc_unchecked(&rdtp->dynticks);
 	/* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
 	smp_mb__after_atomic_inc();  /* See above. */
-	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
+	WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
 }
 
 /**
@@ -659,9 +659,9 @@ void rcu_nmi_exit(void)
 		return;
 	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
 	smp_mb__before_atomic_inc();  /* See above. */
-	atomic_inc(&rdtp->dynticks);
+	atomic_inc_unchecked(&rdtp->dynticks);
 	smp_mb__after_atomic_inc();  /* Force delay to next write. */
-	WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
+	WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
 }
 
 /**
@@ -675,7 +675,7 @@ int rcu_is_cpu_idle(void)
 	int ret;
 
 	preempt_disable();
-	ret = (atomic_read(&__get_cpu_var(rcu_dynticks).dynticks) & 0x1) == 0;
+	ret = (atomic_read_unchecked(&__get_cpu_var(rcu_dynticks).dynticks) & 0x1) == 0;
 	preempt_enable();
 	return ret;
 }
@@ -743,7 +743,7 @@ static int rcu_is_cpu_rrupt_from_idle(void)
  */
 static int dyntick_save_progress_counter(struct rcu_data *rdp)
 {
-	rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks);
+	rdp->dynticks_snap = atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
 	return (rdp->dynticks_snap & 0x1) == 0;
 }
 
@@ -758,7 +758,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp)
 	unsigned int curr;
 	unsigned int snap;
 
-	curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks);
+	curr = (unsigned int)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
 	snap = (unsigned int)rdp->dynticks_snap;
 
 	/*
@@ -1698,7 +1698,7 @@ rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
 		rsp->qlen += rdp->qlen;
 		rdp->n_cbs_orphaned += rdp->qlen;
 		rdp->qlen_lazy = 0;
-		ACCESS_ONCE(rdp->qlen) = 0;
+		ACCESS_ONCE_RW(rdp->qlen) = 0;
 	}
 
 	/*
@@ -1944,7 +1944,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
 	}
 	smp_mb(); /* List handling before counting for rcu_barrier(). */
 	rdp->qlen_lazy -= count_lazy;
-	ACCESS_ONCE(rdp->qlen) -= count;
+	ACCESS_ONCE_RW(rdp->qlen) -= count;
 	rdp->n_cbs_invoked += count;
 
 	/* Reinstate batch limit if we have worked down the excess. */
@@ -2137,7 +2137,7 @@ __rcu_process_callbacks(struct rcu_state *rsp)
 /*
  * Do RCU core processing for the current CPU.
  */
-static void rcu_process_callbacks(struct softirq_action *unused)
+static void rcu_process_callbacks(void)
 {
 	struct rcu_state *rsp;
 
@@ -2260,7 +2260,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
 		local_irq_restore(flags);
 		return;
 	}
-	ACCESS_ONCE(rdp->qlen)++;
+	ACCESS_ONCE_RW(rdp->qlen)++;
 	if (lazy)
 		rdp->qlen_lazy++;
 	else
@@ -2469,11 +2469,11 @@ void synchronize_sched_expedited(void)
 	 * counter wrap on a 32-bit system.  Quite a few more CPUs would of
 	 * course be required on a 64-bit system.
 	 */
-	if (ULONG_CMP_GE((ulong)atomic_long_read(&rsp->expedited_start),
+	if (ULONG_CMP_GE((ulong)atomic_long_read_unchecked(&rsp->expedited_start),
 			 (ulong)atomic_long_read(&rsp->expedited_done) +
 			 ULONG_MAX / 8)) {
 		synchronize_sched();
-		atomic_long_inc(&rsp->expedited_wrap);
+		atomic_long_inc_unchecked(&rsp->expedited_wrap);
 		return;
 	}
 
@@ -2481,7 +2481,7 @@ void synchronize_sched_expedited(void)
 	 * Take a ticket.  Note that atomic_inc_return() implies a
 	 * full memory barrier.
 	 */
-	snap = atomic_long_inc_return(&rsp->expedited_start);
+	snap = atomic_long_inc_return_unchecked(&rsp->expedited_start);
 	firstsnap = snap;
 	get_online_cpus();
 	WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id()));
@@ -2494,14 +2494,14 @@ void synchronize_sched_expedited(void)
 			     synchronize_sched_expedited_cpu_stop,
 			     NULL) == -EAGAIN) {
 		put_online_cpus();
-		atomic_long_inc(&rsp->expedited_tryfail);
+		atomic_long_inc_unchecked(&rsp->expedited_tryfail);
 
 		/* Check to see if someone else did our work for us. */
 		s = atomic_long_read(&rsp->expedited_done);
 		if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
 			/* ensure test happens before caller kfree */
 			smp_mb__before_atomic_inc(); /* ^^^ */
-			atomic_long_inc(&rsp->expedited_workdone1);
+			atomic_long_inc_unchecked(&rsp->expedited_workdone1);
 			return;
 		}
 
@@ -2510,7 +2510,7 @@ void synchronize_sched_expedited(void)
 			udelay(trycount * num_online_cpus());
 		} else {
 			wait_rcu_gp(call_rcu_sched);
-			atomic_long_inc(&rsp->expedited_normal);
+			atomic_long_inc_unchecked(&rsp->expedited_normal);
 			return;
 		}
 
@@ -2519,7 +2519,7 @@ void synchronize_sched_expedited(void)
 		if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
 			/* ensure test happens before caller kfree */
 			smp_mb__before_atomic_inc(); /* ^^^ */
-			atomic_long_inc(&rsp->expedited_workdone2);
+			atomic_long_inc_unchecked(&rsp->expedited_workdone2);
 			return;
 		}
 
@@ -2531,10 +2531,10 @@ void synchronize_sched_expedited(void)
 		 * period works for us.
 		 */
 		get_online_cpus();
-		snap = atomic_long_read(&rsp->expedited_start);
+		snap = atomic_long_read_unchecked(&rsp->expedited_start);
 		smp_mb(); /* ensure read is before try_stop_cpus(). */
 	}
-	atomic_long_inc(&rsp->expedited_stoppedcpus);
+	atomic_long_inc_unchecked(&rsp->expedited_stoppedcpus);
 
 	/*
 	 * Everyone up to our most recent fetch is covered by our grace
@@ -2543,16 +2543,16 @@ void synchronize_sched_expedited(void)
 	 * than we did already did their update.
 	 */
 	do {
-		atomic_long_inc(&rsp->expedited_done_tries);
+		atomic_long_inc_unchecked(&rsp->expedited_done_tries);
 		s = atomic_long_read(&rsp->expedited_done);
 		if (ULONG_CMP_GE((ulong)s, (ulong)snap)) {
 			/* ensure test happens before caller kfree */
 			smp_mb__before_atomic_inc(); /* ^^^ */
-			atomic_long_inc(&rsp->expedited_done_lost);
+			atomic_long_inc_unchecked(&rsp->expedited_done_lost);
 			break;
 		}
 	} while (atomic_long_cmpxchg(&rsp->expedited_done, s, snap) != s);
-	atomic_long_inc(&rsp->expedited_done_exit);
+	atomic_long_inc_unchecked(&rsp->expedited_done_exit);
 
 	put_online_cpus();
 }
@@ -2726,7 +2726,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
 	 * ACCESS_ONCE() to prevent the compiler from speculating
 	 * the increment to precede the early-exit check.
 	 */
-	ACCESS_ONCE(rsp->n_barrier_done)++;
+	ACCESS_ONCE_RW(rsp->n_barrier_done)++;
 	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 1);
 	_rcu_barrier_trace(rsp, "Inc1", -1, rsp->n_barrier_done);
 	smp_mb(); /* Order ->n_barrier_done increment with below mechanism. */
@@ -2776,7 +2776,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
 
 	/* Increment ->n_barrier_done to prevent duplicate work. */
 	smp_mb(); /* Keep increment after above mechanism. */
-	ACCESS_ONCE(rsp->n_barrier_done)++;
+	ACCESS_ONCE_RW(rsp->n_barrier_done)++;
 	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 0);
 	_rcu_barrier_trace(rsp, "Inc2", -1, rsp->n_barrier_done);
 	smp_mb(); /* Keep increment before caller's subsequent code. */
@@ -2821,10 +2821,10 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
 	rdp->grpmask = 1UL << (cpu - rdp->mynode->grplo);
 	init_callback_list(rdp);
 	rdp->qlen_lazy = 0;
-	ACCESS_ONCE(rdp->qlen) = 0;
+	ACCESS_ONCE_RW(rdp->qlen) = 0;
 	rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
 	WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
-	WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
+	WARN_ON_ONCE(atomic_read_unchecked(&rdp->dynticks->dynticks) != 1);
 	rdp->cpu = cpu;
 	rdp->rsp = rsp;
 	rcu_boot_init_nocb_percpu_data(rdp);
@@ -2857,8 +2857,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible)
 	rdp->blimit = blimit;
 	init_callback_list(rdp);  /* Re-enable callbacks on this CPU. */
 	rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
-	atomic_set(&rdp->dynticks->dynticks,
-		   (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1);
+	atomic_set_unchecked(&rdp->dynticks->dynticks,
+		   (atomic_read_unchecked(&rdp->dynticks->dynticks) & ~0x1) + 1);
 	rcu_prepare_for_idle_init(cpu);
 	raw_spin_unlock(&rnp->lock);		/* irqs remain disabled. */
 
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index c896b50..c357252 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -86,7 +86,7 @@ struct rcu_dynticks {
 	long long dynticks_nesting; /* Track irq/process nesting level. */
 				    /* Process level is worth LLONG_MAX/2. */
 	int dynticks_nmi_nesting;   /* Track NMI nesting level. */
-	atomic_t dynticks;	    /* Even value for idle, else odd. */
+	atomic_unchecked_t dynticks;/* Even value for idle, else odd. */
 #ifdef CONFIG_RCU_FAST_NO_HZ
 	int dyntick_drain;	    /* Prepare-for-idle state variable. */
 	unsigned long dyntick_holdoff;
@@ -416,17 +416,17 @@ struct rcu_state {
 						/*  _rcu_barrier(). */
 	/* End of fields guarded by barrier_mutex. */
 
-	atomic_long_t expedited_start;		/* Starting ticket. */
-	atomic_long_t expedited_done;		/* Done ticket. */
-	atomic_long_t expedited_wrap;		/* # near-wrap incidents. */
-	atomic_long_t expedited_tryfail;	/* # acquisition failures. */
-	atomic_long_t expedited_workdone1;	/* # done by others #1. */
-	atomic_long_t expedited_workdone2;	/* # done by others #2. */
-	atomic_long_t expedited_normal;		/* # fallbacks to normal. */
-	atomic_long_t expedited_stoppedcpus;	/* # successful stop_cpus. */
-	atomic_long_t expedited_done_tries;	/* # tries to update _done. */
-	atomic_long_t expedited_done_lost;	/* # times beaten to _done. */
-	atomic_long_t expedited_done_exit;	/* # times exited _done loop. */
+	atomic_long_unchecked_t expedited_start;	/* Starting ticket. */
+	atomic_long_t expedited_done;			/* Done ticket. */
+	atomic_long_unchecked_t expedited_wrap;		/* # near-wrap incidents. */
+	atomic_long_unchecked_t expedited_tryfail;	/* # acquisition failures. */
+	atomic_long_unchecked_t expedited_workdone1;	/* # done by others #1. */
+	atomic_long_unchecked_t expedited_workdone2;	/* # done by others #2. */
+	atomic_long_unchecked_t expedited_normal;	/* # fallbacks to normal. */
+	atomic_long_unchecked_t expedited_stoppedcpus;	/* # successful stop_cpus. */
+	atomic_long_unchecked_t expedited_done_tries;	/* # tries to update _done. */
+	atomic_long_unchecked_t expedited_done_lost;	/* # times beaten to _done. */
+	atomic_long_unchecked_t expedited_done_exit;	/* # times exited _done loop. */
 
 	unsigned long jiffies_force_qs;		/* Time at which to invoke */
 						/*  force_quiescent_state(). */
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index c1cc7e1..f62e436 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -892,7 +892,7 @@ void synchronize_rcu_expedited(void)
 
 	/* Clean up and exit. */
 	smp_mb(); /* ensure expedited GP seen before counter increment. */
-	ACCESS_ONCE(sync_rcu_preempt_exp_count)++;
+	ACCESS_ONCE_RW(sync_rcu_preempt_exp_count)++;
 unlock_mb_ret:
 	mutex_unlock(&sync_rcu_preempt_exp_mutex);
 mb_ret:
@@ -1440,7 +1440,7 @@ static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
 	free_cpumask_var(cm);
 }
 
-static struct smp_hotplug_thread rcu_cpu_thread_spec = {
+static struct smp_hotplug_thread rcu_cpu_thread_spec __read_only = {
 	.store			= &rcu_cpu_kthread_task,
 	.thread_should_run	= rcu_cpu_kthread_should_run,
 	.thread_fn		= rcu_cpu_kthread,
@@ -2072,7 +2072,7 @@ static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
 	print_cpu_stall_fast_no_hz(fast_no_hz, cpu);
 	printk(KERN_ERR "\t%d: (%lu %s) idle=%03x/%llx/%d %s\n",
 	       cpu, ticks_value, ticks_title,
-	       atomic_read(&rdtp->dynticks) & 0xfff,
+	       atomic_read_unchecked(&rdtp->dynticks) & 0xfff,
 	       rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting,
 	       fast_no_hz);
 }
@@ -2192,7 +2192,7 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
 
 	/* Enqueue the callback on the nocb list and update counts. */
 	old_rhpp = xchg(&rdp->nocb_tail, rhtp);
-	ACCESS_ONCE(*old_rhpp) = rhp;
+	ACCESS_ONCE_RW(*old_rhpp) = rhp;
 	atomic_long_add(rhcount, &rdp->nocb_q_count);
 	atomic_long_add(rhcount_lazy, &rdp->nocb_q_count_lazy);
 
@@ -2384,12 +2384,12 @@ static int rcu_nocb_kthread(void *arg)
 		 * Extract queued callbacks, update counts, and wait
 		 * for a grace period to elapse.
 		 */
-		ACCESS_ONCE(rdp->nocb_head) = NULL;
+		ACCESS_ONCE_RW(rdp->nocb_head) = NULL;
 		tail = xchg(&rdp->nocb_tail, &rdp->nocb_head);
 		c = atomic_long_xchg(&rdp->nocb_q_count, 0);
 		cl = atomic_long_xchg(&rdp->nocb_q_count_lazy, 0);
-		ACCESS_ONCE(rdp->nocb_p_count) += c;
-		ACCESS_ONCE(rdp->nocb_p_count_lazy) += cl;
+		ACCESS_ONCE_RW(rdp->nocb_p_count) += c;
+		ACCESS_ONCE_RW(rdp->nocb_p_count_lazy) += cl;
 		wait_rcu_gp(rdp->rsp->call_remote);
 
 		/* Each pass through the following loop invokes a callback. */
@@ -2411,8 +2411,8 @@ static int rcu_nocb_kthread(void *arg)
 			list = next;
 		}
 		trace_rcu_batch_end(rdp->rsp->name, c, !!list, 0, 0, 1);
-		ACCESS_ONCE(rdp->nocb_p_count) -= c;
-		ACCESS_ONCE(rdp->nocb_p_count_lazy) -= cl;
+		ACCESS_ONCE_RW(rdp->nocb_p_count) -= c;
+		ACCESS_ONCE_RW(rdp->nocb_p_count_lazy) -= cl;
 		rdp->n_nocbs_invoked += c;
 	}
 	return 0;
@@ -2438,7 +2438,7 @@ static void __init rcu_spawn_nocb_kthreads(struct rcu_state *rsp)
 		rdp = per_cpu_ptr(rsp->rda, cpu);
 		t = kthread_run(rcu_nocb_kthread, rdp, "rcuo%d", cpu);
 		BUG_ON(IS_ERR(t));
-		ACCESS_ONCE(rdp->nocb_kthread) = t;
+		ACCESS_ONCE_RW(rdp->nocb_kthread) = t;
 	}
 }
 
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
index 93f8e8f..cf812ae 100644
--- a/kernel/rcutree_trace.c
+++ b/kernel/rcutree_trace.c
@@ -123,7 +123,7 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
 		   ulong2long(rdp->completed), ulong2long(rdp->gpnum),
 		   rdp->passed_quiesce, rdp->qs_pending);
 	seq_printf(m, " dt=%d/%llx/%d df=%lu",
-		   atomic_read(&rdp->dynticks->dynticks),
+		   atomic_read_unchecked(&rdp->dynticks->dynticks),
 		   rdp->dynticks->dynticks_nesting,
 		   rdp->dynticks->dynticks_nmi_nesting,
 		   rdp->dynticks_fqs);
@@ -184,17 +184,17 @@ static int show_rcuexp(struct seq_file *m, void *v)
 	struct rcu_state *rsp = (struct rcu_state *)m->private;
 
 	seq_printf(m, "s=%lu d=%lu w=%lu tf=%lu wd1=%lu wd2=%lu n=%lu sc=%lu dt=%lu dl=%lu dx=%lu\n",
-		   atomic_long_read(&rsp->expedited_start),
+		   atomic_long_read_unchecked(&rsp->expedited_start),
 		   atomic_long_read(&rsp->expedited_done),
-		   atomic_long_read(&rsp->expedited_wrap),
-		   atomic_long_read(&rsp->expedited_tryfail),
-		   atomic_long_read(&rsp->expedited_workdone1),
-		   atomic_long_read(&rsp->expedited_workdone2),
-		   atomic_long_read(&rsp->expedited_normal),
-		   atomic_long_read(&rsp->expedited_stoppedcpus),
-		   atomic_long_read(&rsp->expedited_done_tries),
-		   atomic_long_read(&rsp->expedited_done_lost),
-		   atomic_long_read(&rsp->expedited_done_exit));
+		   atomic_long_read_unchecked(&rsp->expedited_wrap),
+		   atomic_long_read_unchecked(&rsp->expedited_tryfail),
+		   atomic_long_read_unchecked(&rsp->expedited_workdone1),
+		   atomic_long_read_unchecked(&rsp->expedited_workdone2),
+		   atomic_long_read_unchecked(&rsp->expedited_normal),
+		   atomic_long_read_unchecked(&rsp->expedited_stoppedcpus),
+		   atomic_long_read_unchecked(&rsp->expedited_done_tries),
+		   atomic_long_read_unchecked(&rsp->expedited_done_lost),
+		   atomic_long_read_unchecked(&rsp->expedited_done_exit));
 	return 0;
 }
 
diff --git a/kernel/resource.c b/kernel/resource.c
index 73f35d4..4684fc4 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -143,8 +143,18 @@ static const struct file_operations proc_iomem_operations = {
 
 static int __init ioresources_init(void)
 {
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations);
+	proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations);
+	proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations);
+#endif
+#else
 	proc_create("ioports", 0, NULL, &proc_ioports_operations);
 	proc_create("iomem", 0, NULL, &proc_iomem_operations);
+#endif
 	return 0;
 }
 __initcall(ioresources_init);
diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
index 7890b10..8b68605f 100644
--- a/kernel/rtmutex-tester.c
+++ b/kernel/rtmutex-tester.c
@@ -21,7 +21,7 @@
 #define MAX_RT_TEST_MUTEXES	8
 
 static spinlock_t rttest_lock;
-static atomic_t rttest_event;
+static atomic_unchecked_t rttest_event;
 
 struct test_thread_data {
 	int			opcode;
@@ -62,7 +62,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
 
 	case RTTEST_LOCKCONT:
 		td->mutexes[td->opdata] = 1;
-		td->event = atomic_add_return(1, &rttest_event);
+		td->event = atomic_add_return_unchecked(1, &rttest_event);
 		return 0;
 
 	case RTTEST_RESET:
@@ -75,7 +75,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
 		return 0;
 
 	case RTTEST_RESETEVENT:
-		atomic_set(&rttest_event, 0);
+		atomic_set_unchecked(&rttest_event, 0);
 		return 0;
 
 	default:
@@ -92,9 +92,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
 			return ret;
 
 		td->mutexes[id] = 1;
-		td->event = atomic_add_return(1, &rttest_event);
+		td->event = atomic_add_return_unchecked(1, &rttest_event);
 		rt_mutex_lock(&mutexes[id]);
-		td->event = atomic_add_return(1, &rttest_event);
+		td->event = atomic_add_return_unchecked(1, &rttest_event);
 		td->mutexes[id] = 4;
 		return 0;
 
@@ -105,9 +105,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
 			return ret;
 
 		td->mutexes[id] = 1;
-		td->event = atomic_add_return(1, &rttest_event);
+		td->event = atomic_add_return_unchecked(1, &rttest_event);
 		ret = rt_mutex_lock_interruptible(&mutexes[id], 0);
-		td->event = atomic_add_return(1, &rttest_event);
+		td->event = atomic_add_return_unchecked(1, &rttest_event);
 		td->mutexes[id] = ret ? 0 : 4;
 		return ret ? -EINTR : 0;
 
@@ -116,9 +116,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
 		if (id < 0 || id >= MAX_RT_TEST_MUTEXES || td->mutexes[id] != 4)
 			return ret;
 
-		td->event = atomic_add_return(1, &rttest_event);
+		td->event = atomic_add_return_unchecked(1, &rttest_event);
 		rt_mutex_unlock(&mutexes[id]);
-		td->event = atomic_add_return(1, &rttest_event);
+		td->event = atomic_add_return_unchecked(1, &rttest_event);
 		td->mutexes[id] = 0;
 		return 0;
 
@@ -165,7 +165,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
 			break;
 
 		td->mutexes[dat] = 2;
-		td->event = atomic_add_return(1, &rttest_event);
+		td->event = atomic_add_return_unchecked(1, &rttest_event);
 		break;
 
 	default:
@@ -185,7 +185,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
 			return;
 
 		td->mutexes[dat] = 3;
-		td->event = atomic_add_return(1, &rttest_event);
+		td->event = atomic_add_return_unchecked(1, &rttest_event);
 		break;
 
 	case RTTEST_LOCKNOWAIT:
@@ -197,7 +197,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
 			return;
 
 		td->mutexes[dat] = 1;
-		td->event = atomic_add_return(1, &rttest_event);
+		td->event = atomic_add_return_unchecked(1, &rttest_event);
 		return;
 
 	default:
diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c
index 64de5f8..7735e12 100644
--- a/kernel/sched/auto_group.c
+++ b/kernel/sched/auto_group.c
@@ -11,7 +11,7 @@
 
 unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1;
 static struct autogroup autogroup_default;
-static atomic_t autogroup_seq_nr;
+static atomic_unchecked_t autogroup_seq_nr;
 
 void __init autogroup_init(struct task_struct *init_task)
 {
@@ -81,7 +81,7 @@ static inline struct autogroup *autogroup_create(void)
 
 	kref_init(&ag->kref);
 	init_rwsem(&ag->lock);
-	ag->id = atomic_inc_return(&autogroup_seq_nr);
+	ag->id = atomic_inc_return_unchecked(&autogroup_seq_nr);
 	ag->tg = tg;
 #ifdef CONFIG_RT_GROUP_SCHED
 	/*
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 67d0465..4cf9361 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3406,7 +3406,7 @@ EXPORT_SYMBOL(wait_for_completion_interruptible);
  * The return value is -ERESTARTSYS if interrupted, 0 if timed out,
  * positive (at least 1, or number of jiffies left till timeout) if completed.
  */
-long __sched
+long __sched __intentional_overflow(-1)
 wait_for_completion_interruptible_timeout(struct completion *x,
 					  unsigned long timeout)
 {
@@ -3423,7 +3423,7 @@ EXPORT_SYMBOL(wait_for_completion_interruptible_timeout);
  *
  * The return value is -ERESTARTSYS if interrupted, 0 if completed.
  */
-int __sched wait_for_completion_killable(struct completion *x)
+int __sched __intentional_overflow(-1) wait_for_completion_killable(struct completion *x)
 {
 	long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_KILLABLE);
 	if (t == -ERESTARTSYS)
@@ -3444,7 +3444,7 @@ EXPORT_SYMBOL(wait_for_completion_killable);
  * The return value is -ERESTARTSYS if interrupted, 0 if timed out,
  * positive (at least 1, or number of jiffies left till timeout) if completed.
  */
-long __sched
+long __sched __intentional_overflow(-1)
 wait_for_completion_killable_timeout(struct completion *x,
 				     unsigned long timeout)
 {
@@ -3670,6 +3670,8 @@ int can_nice(const struct task_struct *p, const int nice)
 	/* convert nice value [19,-20] to rlimit style value [1,40] */
 	int nice_rlim = 20 - nice;
 
+	gr_learn_resource(p, RLIMIT_NICE, nice_rlim, 1);
+
 	return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
 		capable(CAP_SYS_NICE));
 }
@@ -3703,7 +3705,8 @@ SYSCALL_DEFINE1(nice, int, increment)
 	if (nice > 19)
 		nice = 19;
 
-	if (increment < 0 && !can_nice(current, nice))
+	if (increment < 0 && (!can_nice(current, nice) ||
+			      gr_handle_chroot_nice()))
 		return -EPERM;
 
 	retval = security_task_setnice(current, nice);
@@ -3857,6 +3860,7 @@ recheck:
 			unsigned long rlim_rtprio =
 					task_rlimit(p, RLIMIT_RTPRIO);
 
+			 gr_learn_resource(p, RLIMIT_RTPRIO, param->sched_priority, 1);
 			/* can't set/change the rt policy */
 			if (policy != p->policy && !rlim_rtprio)
 				return -EPERM;
@@ -4954,7 +4958,7 @@ static void migrate_tasks(unsigned int dead_cpu)
 
 #if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_SYSCTL)
 
-static struct ctl_table sd_ctl_dir[] = {
+static ctl_table_no_const sd_ctl_dir[] __read_only = {
 	{
 		.procname	= "sched_domain",
 		.mode		= 0555,
@@ -4971,17 +4975,17 @@ static struct ctl_table sd_ctl_root[] = {
 	{}
 };
 
-static struct ctl_table *sd_alloc_ctl_entry(int n)
+static ctl_table_no_const *sd_alloc_ctl_entry(int n)
 {
-	struct ctl_table *entry =
+	ctl_table_no_const *entry =
 		kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL);
 
 	return entry;
 }
 
-static void sd_free_ctl_entry(struct ctl_table **tablep)
+static void sd_free_ctl_entry(ctl_table_no_const *tablep)
 {
-	struct ctl_table *entry;
+	ctl_table_no_const *entry;
 
 	/*
 	 * In the intermediate directories, both the child directory and
@@ -4989,22 +4993,25 @@ static void sd_free_ctl_entry(struct ctl_table **tablep)
 	 * will always be set. In the lowest directory the names are
 	 * static strings and all have proc handlers.
 	 */
-	for (entry = *tablep; entry->mode; entry++) {
-		if (entry->child)
-			sd_free_ctl_entry(&entry->child);
+	for (entry = tablep; entry->mode; entry++) {
+		if (entry->child) {
+			sd_free_ctl_entry(entry->child);
+			pax_open_kernel();
+			entry->child = NULL;
+			pax_close_kernel();
+		}
 		if (entry->proc_handler == NULL)
 			kfree(entry->procname);
 	}
 
-	kfree(*tablep);
-	*tablep = NULL;
+	kfree(tablep);
 }
 
 static int min_load_idx = 0;
 static int max_load_idx = CPU_LOAD_IDX_MAX-1;
 
 static void
-set_table_entry(struct ctl_table *entry,
+set_table_entry(ctl_table_no_const *entry,
 		const char *procname, void *data, int maxlen,
 		umode_t mode, proc_handler *proc_handler,
 		bool load_idx)
@@ -5024,7 +5031,7 @@ set_table_entry(struct ctl_table *entry,
 static struct ctl_table *
 sd_alloc_ctl_domain_table(struct sched_domain *sd)
 {
-	struct ctl_table *table = sd_alloc_ctl_entry(13);
+	ctl_table_no_const *table = sd_alloc_ctl_entry(13);
 
 	if (table == NULL)
 		return NULL;
@@ -5059,9 +5066,9 @@ sd_alloc_ctl_domain_table(struct sched_domain *sd)
 	return table;
 }
 
-static ctl_table *sd_alloc_ctl_cpu_table(int cpu)
+static ctl_table_no_const *sd_alloc_ctl_cpu_table(int cpu)
 {
-	struct ctl_table *entry, *table;
+	ctl_table_no_const *entry, *table;
 	struct sched_domain *sd;
 	int domain_num = 0, i;
 	char buf[32];
@@ -5088,11 +5095,13 @@ static struct ctl_table_header *sd_sysctl_header;
 static void register_sched_domain_sysctl(void)
 {
 	int i, cpu_num = num_possible_cpus();
-	struct ctl_table *entry = sd_alloc_ctl_entry(cpu_num + 1);
+	ctl_table_no_const *entry = sd_alloc_ctl_entry(cpu_num + 1);
 	char buf[32];
 
 	WARN_ON(sd_ctl_dir[0].child);
+	pax_open_kernel();
 	sd_ctl_dir[0].child = entry;
+	pax_close_kernel();
 
 	if (entry == NULL)
 		return;
@@ -5115,8 +5124,12 @@ static void unregister_sched_domain_sysctl(void)
 	if (sd_sysctl_header)
 		unregister_sysctl_table(sd_sysctl_header);
 	sd_sysctl_header = NULL;
-	if (sd_ctl_dir[0].child)
-		sd_free_ctl_entry(&sd_ctl_dir[0].child);
+	if (sd_ctl_dir[0].child) {
+		sd_free_ctl_entry(sd_ctl_dir[0].child);
+		pax_open_kernel();
+		sd_ctl_dir[0].child = NULL;
+		pax_close_kernel();
+	}
 }
 #else
 static void register_sched_domain_sysctl(void)
@@ -5215,7 +5228,7 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
  * happens before everything else.  This has to be lower priority than
  * the notifier in the perf_event subsystem, though.
  */
-static struct notifier_block __cpuinitdata migration_notifier = {
+static struct notifier_block migration_notifier = {
 	.notifier_call = migration_call,
 	.priority = CPU_PRI_MIGRATION,
 };
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 7a33e59..2f7730c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -830,7 +830,7 @@ void task_numa_fault(int node, int pages, bool migrated)
 
 static void reset_ptenuma_scan(struct task_struct *p)
 {
-	ACCESS_ONCE(p->mm->numa_scan_seq)++;
+	ACCESS_ONCE_RW(p->mm->numa_scan_seq)++;
 	p->mm->numa_scan_offset = 0;
 }
 
@@ -5654,7 +5654,7 @@ static void nohz_idle_balance(int this_cpu, enum cpu_idle_type idle) { }
  * run_rebalance_domains is triggered when needed from the scheduler tick.
  * Also triggered for nohz idle balancing (with nohz_balancing_kick set).
  */
-static void run_rebalance_domains(struct softirq_action *h)
+static void run_rebalance_domains(void)
 {
 	int this_cpu = smp_processor_id();
 	struct rq *this_rq = cpu_rq(this_cpu);
diff --git a/kernel/signal.c b/kernel/signal.c
index 598dc06..471310a 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -50,12 +50,12 @@ static struct kmem_cache *sigqueue_cachep;
 
 int print_fatal_signals __read_mostly;
 
-static void __user *sig_handler(struct task_struct *t, int sig)
+static __sighandler_t sig_handler(struct task_struct *t, int sig)
 {
 	return t->sighand->action[sig - 1].sa.sa_handler;
 }
 
-static int sig_handler_ignored(void __user *handler, int sig)
+static int sig_handler_ignored(__sighandler_t handler, int sig)
 {
 	/* Is it explicitly or implicitly ignored? */
 	return handler == SIG_IGN ||
@@ -64,7 +64,7 @@ static int sig_handler_ignored(void __user *handler, int sig)
 
 static int sig_task_ignored(struct task_struct *t, int sig, bool force)
 {
-	void __user *handler;
+	__sighandler_t handler;
 
 	handler = sig_handler(t, sig);
 
@@ -368,6 +368,9 @@ __sigqueue_alloc(int sig, struct task_struct *t, gfp_t flags, int override_rlimi
 	atomic_inc(&user->sigpending);
 	rcu_read_unlock();
 
+	if (!override_rlimit)
+		gr_learn_resource(t, RLIMIT_SIGPENDING, atomic_read(&user->sigpending), 1);
+
 	if (override_rlimit ||
 	    atomic_read(&user->sigpending) <=
 			task_rlimit(t, RLIMIT_SIGPENDING)) {
@@ -495,7 +498,7 @@ flush_signal_handlers(struct task_struct *t, int force_default)
 
 int unhandled_signal(struct task_struct *tsk, int sig)
 {
-	void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler;
+	__sighandler_t handler = tsk->sighand->action[sig-1].sa.sa_handler;
 	if (is_global_init(tsk))
 		return 1;
 	if (handler != SIG_IGN && handler != SIG_DFL)
@@ -815,6 +818,13 @@ static int check_kill_permission(int sig, struct siginfo *info,
 		}
 	}
 
+	/* allow glibc communication via tgkill to other threads in our
+	   thread group */
+	if ((info == SEND_SIG_NOINFO || info->si_code != SI_TKILL ||
+	     sig != (SIGRTMIN+1) || task_tgid_vnr(t) != info->si_pid)
+	    && gr_handle_signal(t, sig))
+		return -EPERM;
+
 	return security_task_kill(t, info, sig, 0);
 }
 
@@ -1197,7 +1207,7 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
 	return send_signal(sig, info, p, 1);
 }
 
-static int
+int
 specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
 {
 	return send_signal(sig, info, t, 0);
@@ -1234,6 +1244,7 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
 	unsigned long int flags;
 	int ret, blocked, ignored;
 	struct k_sigaction *action;
+	int is_unhandled = 0;
 
 	spin_lock_irqsave(&t->sighand->siglock, flags);
 	action = &t->sighand->action[sig-1];
@@ -1248,9 +1259,18 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
 	}
 	if (action->sa.sa_handler == SIG_DFL)
 		t->signal->flags &= ~SIGNAL_UNKILLABLE;
+	if (action->sa.sa_handler == SIG_IGN || action->sa.sa_handler == SIG_DFL)
+		is_unhandled = 1;
 	ret = specific_send_sig_info(sig, info, t);
 	spin_unlock_irqrestore(&t->sighand->siglock, flags);
 
+	/* only deal with unhandled signals, java etc trigger SIGSEGV during
+	   normal operation */
+	if (is_unhandled) {
+		gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, t);
+		gr_handle_crash(t, sig);
+	}
+
 	return ret;
 }
 
@@ -1317,8 +1337,11 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
 	ret = check_kill_permission(sig, info, p);
 	rcu_read_unlock();
 
-	if (!ret && sig)
+	if (!ret && sig) {
 		ret = do_send_sig_info(sig, info, p, true);
+		if (!ret)
+			gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, p);
+	}
 
 	return ret;
 }
@@ -2923,7 +2946,15 @@ do_send_specific(pid_t tgid, pid_t pid, int sig, struct siginfo *info)
 	int error = -ESRCH;
 
 	rcu_read_lock();
-	p = find_task_by_vpid(pid);
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+	/* allow glibc communication via tgkill to other threads in our
+	   thread group */
+	if (grsec_enable_chroot_findtask && info->si_code == SI_TKILL &&
+	    sig == (SIGRTMIN+1) && tgid == info->si_pid)	    
+		p = find_task_by_vpid_unrestricted(pid);
+	else
+#endif
+		p = find_task_by_vpid(pid);
 	if (p && (tgid <= 0 || task_tgid_vnr(p) == tgid)) {
 		error = check_kill_permission(sig, info, p);
 		/*
@@ -3237,8 +3268,8 @@ COMPAT_SYSCALL_DEFINE2(sigaltstack,
 	}
 	seg = get_fs();
 	set_fs(KERNEL_DS);
-	ret = do_sigaltstack((stack_t __force __user *) (uss_ptr ? &uss : NULL),
-			     (stack_t __force __user *) &uoss,
+	ret = do_sigaltstack((stack_t __force_user *) (uss_ptr ? &uss : NULL),
+			     (stack_t __force_user *) &uoss,
 			     compat_user_stack_pointer());
 	set_fs(seg);
 	if (ret >= 0 && uoss_ptr)  {
diff --git a/kernel/smp.c b/kernel/smp.c
index 8e451f3..8322029 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -73,7 +73,7 @@ hotplug_cfd(struct notifier_block *nfb, unsigned long action, void *hcpu)
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata hotplug_cfd_notifier = {
+static struct notifier_block hotplug_cfd_notifier = {
 	.notifier_call		= hotplug_cfd,
 };
 
diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index 02fc5c9..e54c335 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -288,7 +288,7 @@ int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread)
 		}
 		smpboot_unpark_thread(plug_thread, cpu);
 	}
-	list_add(&plug_thread->list, &hotplug_threads);
+	pax_list_add(&plug_thread->list, &hotplug_threads);
 out:
 	mutex_unlock(&smpboot_threads_lock);
 	return ret;
@@ -305,7 +305,7 @@ void smpboot_unregister_percpu_thread(struct smp_hotplug_thread *plug_thread)
 {
 	get_online_cpus();
 	mutex_lock(&smpboot_threads_lock);
-	list_del(&plug_thread->list);
+	pax_list_del(&plug_thread->list);
 	smpboot_destroy_threads(plug_thread);
 	mutex_unlock(&smpboot_threads_lock);
 	put_online_cpus();
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 14d7758..012121f 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -53,11 +53,11 @@ irq_cpustat_t irq_stat[NR_CPUS] ____cacheline_aligned;
 EXPORT_SYMBOL(irq_stat);
 #endif
 
-static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;
+static struct softirq_action softirq_vec[NR_SOFTIRQS] __read_only __aligned(PAGE_SIZE);
 
 DEFINE_PER_CPU(struct task_struct *, ksoftirqd);
 
-char *softirq_to_name[NR_SOFTIRQS] = {
+const char * const softirq_to_name[NR_SOFTIRQS] = {
 	"HI", "TIMER", "NET_TX", "NET_RX", "BLOCK", "BLOCK_IOPOLL",
 	"TASKLET", "SCHED", "HRTIMER", "RCU"
 };
@@ -244,7 +244,7 @@ restart:
 			kstat_incr_softirqs_this_cpu(vec_nr);
 
 			trace_softirq_entry(vec_nr);
-			h->action(h);
+			h->action();
 			trace_softirq_exit(vec_nr);
 			if (unlikely(prev_count != preempt_count())) {
 				printk(KERN_ERR "huh, entered softirq %u %s %p"
@@ -389,7 +389,7 @@ void __raise_softirq_irqoff(unsigned int nr)
 	or_softirq_pending(1UL << nr);
 }
 
-void open_softirq(int nr, void (*action)(struct softirq_action *))
+void __init open_softirq(int nr, void (*action)(void))
 {
 	softirq_vec[nr].action = action;
 }
@@ -445,7 +445,7 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t)
 
 EXPORT_SYMBOL(__tasklet_hi_schedule_first);
 
-static void tasklet_action(struct softirq_action *a)
+static void tasklet_action(void)
 {
 	struct tasklet_struct *list;
 
@@ -480,7 +480,7 @@ static void tasklet_action(struct softirq_action *a)
 	}
 }
 
-static void tasklet_hi_action(struct softirq_action *a)
+static void tasklet_hi_action(void)
 {
 	struct tasklet_struct *list;
 
@@ -716,7 +716,7 @@ static int __cpuinit remote_softirq_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata remote_softirq_cpu_notifier = {
+static struct notifier_block remote_softirq_cpu_notifier = {
 	.notifier_call	= remote_softirq_cpu_notify,
 };
 
@@ -833,11 +833,11 @@ static int __cpuinit cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata cpu_nfb = {
+static struct notifier_block cpu_nfb = {
 	.notifier_call = cpu_callback
 };
 
-static struct smp_hotplug_thread softirq_threads = {
+static struct smp_hotplug_thread softirq_threads __read_only = {
 	.store			= &ksoftirqd,
 	.thread_should_run	= ksoftirqd_should_run,
 	.thread_fn		= run_ksoftirqd,
diff --git a/kernel/srcu.c b/kernel/srcu.c
index 01d5ccb..cdcbee6 100644
--- a/kernel/srcu.c
+++ b/kernel/srcu.c
@@ -300,9 +300,9 @@ int __srcu_read_lock(struct srcu_struct *sp)
 
 	idx = ACCESS_ONCE(sp->completed) & 0x1;
 	preempt_disable();
-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
+	ACCESS_ONCE_RW(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
 	smp_mb(); /* B */  /* Avoid leaking the critical section. */
-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
+	ACCESS_ONCE_RW(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
 	preempt_enable();
 	return idx;
 }
diff --git a/kernel/sys.c b/kernel/sys.c
index 0da73cf..5c2af3c 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -158,6 +158,12 @@ static int set_one_prio(struct task_struct *p, int niceval, int error)
 		error = -EACCES;
 		goto out;
 	}
+
+	if (gr_handle_chroot_setpriority(p, niceval)) {
+		error = -EACCES;
+		goto out;
+	}
+
 	no_nice = security_task_setnice(p, niceval);
 	if (no_nice) {
 		error = no_nice;
@@ -598,6 +604,9 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, gid_t, egid)
 			goto error;
 	}
 
+	if (gr_check_group_change(new->gid, new->egid, INVALID_GID))
+		goto error;
+
 	if (rgid != (gid_t) -1 ||
 	    (egid != (gid_t) -1 && !gid_eq(kegid, old->gid)))
 		new->sgid = new->egid;
@@ -633,6 +642,10 @@ SYSCALL_DEFINE1(setgid, gid_t, gid)
 	old = current_cred();
 
 	retval = -EPERM;
+
+	if (gr_check_group_change(kgid, kgid, kgid))
+		goto error;
+
 	if (nsown_capable(CAP_SETGID))
 		new->gid = new->egid = new->sgid = new->fsgid = kgid;
 	else if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->sgid))
@@ -650,7 +663,7 @@ error:
 /*
  * change the user struct in a credentials set to match the new UID
  */
-static int set_user(struct cred *new)
+int set_user(struct cred *new)
 {
 	struct user_struct *new_user;
 
@@ -730,6 +743,9 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid)
 			goto error;
 	}
 
+	if (gr_check_user_change(new->uid, new->euid, INVALID_UID))
+		goto error;
+
 	if (!uid_eq(new->uid, old->uid)) {
 		retval = set_user(new);
 		if (retval < 0)
@@ -780,6 +796,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid)
 	old = current_cred();
 
 	retval = -EPERM;
+
+	if (gr_check_crash_uid(kuid))
+		goto error;
+	if (gr_check_user_change(kuid, kuid, kuid))
+		goto error;
+
 	if (nsown_capable(CAP_SETUID)) {
 		new->suid = new->uid = kuid;
 		if (!uid_eq(kuid, old->uid)) {
@@ -849,6 +871,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
 			goto error;
 	}
 
+	if (gr_check_user_change(kruid, keuid, INVALID_UID))
+		goto error;
+
 	if (ruid != (uid_t) -1) {
 		new->uid = kruid;
 		if (!uid_eq(kruid, old->uid)) {
@@ -931,6 +956,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
 			goto error;
 	}
 
+	if (gr_check_group_change(krgid, kegid, INVALID_GID))
+		goto error;
+
 	if (rgid != (gid_t) -1)
 		new->gid = krgid;
 	if (egid != (gid_t) -1)
@@ -992,12 +1020,16 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
 	    uid_eq(kuid, old->suid) || uid_eq(kuid, old->fsuid) ||
 	    nsown_capable(CAP_SETUID)) {
 		if (!uid_eq(kuid, old->fsuid)) {
+			if (gr_check_user_change(INVALID_UID, INVALID_UID, kuid))
+				goto error;
+
 			new->fsuid = kuid;
 			if (security_task_fix_setuid(new, old, LSM_SETID_FS) == 0)
 				goto change_okay;
 		}
 	}
 
+error:
 	abort_creds(new);
 	return old_fsuid;
 
@@ -1030,12 +1062,16 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid)
 	if (gid_eq(kgid, old->gid)  || gid_eq(kgid, old->egid)  ||
 	    gid_eq(kgid, old->sgid) || gid_eq(kgid, old->fsgid) ||
 	    nsown_capable(CAP_SETGID)) {
+		if (gr_check_group_change(INVALID_GID, INVALID_GID, kgid))
+			goto error;
+
 		if (!gid_eq(kgid, old->fsgid)) {
 			new->fsgid = kgid;
 			goto change_okay;
 		}
 	}
 
+error:
 	abort_creds(new);
 	return old_fsgid;
 
@@ -1343,19 +1379,19 @@ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
 		return -EFAULT;
 
 	down_read(&uts_sem);
-	error = __copy_to_user(&name->sysname, &utsname()->sysname,
+	error = __copy_to_user(name->sysname, &utsname()->sysname,
 			       __OLD_UTS_LEN);
 	error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->nodename, &utsname()->nodename,
+	error |= __copy_to_user(name->nodename, &utsname()->nodename,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->release, &utsname()->release,
+	error |= __copy_to_user(name->release, &utsname()->release,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->release + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->version, &utsname()->version,
+	error |= __copy_to_user(name->version, &utsname()->version,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->version + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->machine, &utsname()->machine,
+	error |= __copy_to_user(name->machine, &utsname()->machine,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->machine + __OLD_UTS_LEN);
 	up_read(&uts_sem);
@@ -1557,6 +1593,13 @@ int do_prlimit(struct task_struct *tsk, unsigned int resource,
 			 */
 			new_rlim->rlim_cur = 1;
 		}
+		/* Handle the case where a fork and setuid occur and then RLIMIT_NPROC
+		   is changed to a lower value.  Since tasks can be created by the same
+		   user in between this limit change and an execve by this task, force
+		   a recheck only for this task by setting PF_NPROC_EXCEEDED
+		*/
+		if (resource == RLIMIT_NPROC && tsk->real_cred->user != INIT_USER)
+			tsk->flags |= PF_NPROC_EXCEEDED;
 	}
 	if (!retval) {
 		if (old_rlim)
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index afc1dc6..5e28bbf 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -93,7 +93,6 @@
 
 
 #if defined(CONFIG_SYSCTL)
-
 /* External variables not in a header file. */
 extern int sysctl_overcommit_memory;
 extern int sysctl_overcommit_ratio;
@@ -178,10 +177,8 @@ static int proc_taint(struct ctl_table *table, int write,
 			       void __user *buffer, size_t *lenp, loff_t *ppos);
 #endif
 
-#ifdef CONFIG_PRINTK
 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos);
-#endif
 
 static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
 		void __user *buffer, size_t *lenp, loff_t *ppos);
@@ -212,6 +209,8 @@ static int sysrq_sysctl_handler(ctl_table *table, int write,
 
 #endif
 
+extern struct ctl_table grsecurity_table[];
+
 static struct ctl_table kern_table[];
 static struct ctl_table vm_table[];
 static struct ctl_table fs_table[];
@@ -226,6 +225,20 @@ extern struct ctl_table epoll_table[];
 int sysctl_legacy_va_layout;
 #endif
 
+#ifdef CONFIG_PAX_SOFTMODE
+static ctl_table pax_table[] = {
+	{
+		.procname	= "softmode",
+		.data		= &pax_softmode,
+		.maxlen		= sizeof(unsigned int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+
+	{ }
+};
+#endif
+
 /* The default sysctl tables: */
 
 static struct ctl_table sysctl_base_table[] = {
@@ -274,6 +287,22 @@ static int max_extfrag_threshold = 1000;
 #endif
 
 static struct ctl_table kern_table[] = {
+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS)
+	{
+		.procname	= "grsecurity",
+		.mode		= 0500,
+		.child		= grsecurity_table,
+	},
+#endif
+
+#ifdef CONFIG_PAX_SOFTMODE
+	{
+		.procname	= "pax",
+		.mode		= 0500,
+		.child		= pax_table,
+	},
+#endif
+
 	{
 		.procname	= "sched_child_runs_first",
 		.data		= &sysctl_sched_child_runs_first,
@@ -608,7 +637,7 @@ static struct ctl_table kern_table[] = {
 		.data		= &modprobe_path,
 		.maxlen		= KMOD_PATH_LEN,
 		.mode		= 0644,
-		.proc_handler	= proc_dostring,
+		.proc_handler	= proc_dostring_modpriv,
 	},
 	{
 		.procname	= "modules_disabled",
@@ -775,16 +804,20 @@ static struct ctl_table kern_table[] = {
 		.extra1		= &zero,
 		.extra2		= &one,
 	},
+#endif
 	{
 		.procname	= "kptr_restrict",
 		.data		= &kptr_restrict,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax_sysadmin,
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+		.extra1		= &two,
+#else
 		.extra1		= &zero,
+#endif
 		.extra2		= &two,
 	},
-#endif
 	{
 		.procname	= "ngroups_max",
 		.data		= &ngroups_max,
@@ -1026,8 +1059,8 @@ static struct ctl_table kern_table[] = {
 	 */
 	{
 		.procname	= "perf_event_paranoid",
-		.data		= &sysctl_perf_event_paranoid,
-		.maxlen		= sizeof(sysctl_perf_event_paranoid),
+		.data		= &sysctl_perf_event_legitimately_concerned,
+		.maxlen		= sizeof(sysctl_perf_event_legitimately_concerned),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec,
 	},
@@ -1283,6 +1316,13 @@ static struct ctl_table vm_table[] = {
 		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &zero,
 	},
+	{
+		.procname	= "heap_stack_gap",
+		.data		= &sysctl_heap_stack_gap,
+		.maxlen		= sizeof(sysctl_heap_stack_gap),
+		.mode		= 0644,
+		.proc_handler	= proc_doulongvec_minmax,
+	},
 #else
 	{
 		.procname	= "nr_trim_pages",
@@ -1733,6 +1773,16 @@ int proc_dostring(struct ctl_table *table, int write,
 			       buffer, lenp, ppos);
 }
 
+int proc_dostring_modpriv(struct ctl_table *table, int write,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	if (write && !capable(CAP_SYS_MODULE))
+		return -EPERM;
+
+	return _proc_do_string(table->data, table->maxlen, write,
+			       buffer, lenp, ppos);
+}
+
 static size_t proc_skip_spaces(char **buf)
 {
 	size_t ret;
@@ -1838,6 +1888,8 @@ static int proc_put_long(void __user **buf, size_t *size, unsigned long val,
 	len = strlen(tmp);
 	if (len > *size)
 		len = *size;
+	if (len > sizeof(tmp))
+		len = sizeof(tmp);
 	if (copy_to_user(*buf, tmp, len))
 		return -EFAULT;
 	*size -= len;
@@ -2002,7 +2054,7 @@ int proc_dointvec(struct ctl_table *table, int write,
 static int proc_taint(struct ctl_table *table, int write,
 			       void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table t;
+	ctl_table_no_const t;
 	unsigned long tmptaint = get_taint();
 	int err;
 
@@ -2030,7 +2082,6 @@ static int proc_taint(struct ctl_table *table, int write,
 	return err;
 }
 
-#ifdef CONFIG_PRINTK
 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -2039,7 +2090,6 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
 
 	return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
 }
-#endif
 
 struct do_proc_dointvec_minmax_conv_param {
 	int *min;
@@ -2186,8 +2236,11 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int
 			*i = val;
 		} else {
 			val = convdiv * (*i) / convmul;
-			if (!first)
+			if (!first) {
 				err = proc_put_char(&buffer, &left, '\t');
+				if (err)
+					break;
+			}
 			err = proc_put_long(&buffer, &left, val, false);
 			if (err)
 				break;
@@ -2579,6 +2632,12 @@ int proc_dostring(struct ctl_table *table, int write,
 	return -ENOSYS;
 }
 
+int proc_dostring_modpriv(struct ctl_table *table, int write,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
 int proc_dointvec(struct ctl_table *table, int write,
 		  void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -2635,5 +2694,6 @@ EXPORT_SYMBOL(proc_dointvec_minmax);
 EXPORT_SYMBOL(proc_dointvec_userhz_jiffies);
 EXPORT_SYMBOL(proc_dointvec_ms_jiffies);
 EXPORT_SYMBOL(proc_dostring);
+EXPORT_SYMBOL(proc_dostring_modpriv);
 EXPORT_SYMBOL(proc_doulongvec_minmax);
 EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax);
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 145bb4d..b2aa969 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -28,9 +28,12 @@
 #include <linux/fs.h>
 #include <linux/file.h>
 #include <linux/pid_namespace.h>
+#include <linux/grsecurity.h>
 #include <net/genetlink.h>
 #include <linux/atomic.h>
 
+extern int gr_is_taskstats_denied(int pid);
+
 /*
  * Maximum length of a cpumask that can be specified in
  * the TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK attribute
@@ -570,6 +573,9 @@ err:
 
 static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
 {
+	if (gr_is_taskstats_denied(current->pid))
+		return -EACCES;
+
 	if (info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK])
 		return cmd_attr_register_cpumask(info);
 	else if (info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK])
diff --git a/kernel/time.c b/kernel/time.c
index f8342a4..288f13b 100644
--- a/kernel/time.c
+++ b/kernel/time.c
@@ -171,6 +171,11 @@ int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz)
 		return error;
 
 	if (tz) {
+		/* we log in do_settimeofday called below, so don't log twice
+		*/
+		if (!tv)
+			gr_log_timechange();
+
 		sys_tz = *tz;
 		update_vsyscall_tz();
 		if (firsttime) {
@@ -501,7 +506,7 @@ EXPORT_SYMBOL(usecs_to_jiffies);
  * The >> (NSEC_JIFFIE_SC - SEC_JIFFIE_SC) converts the scaled nsec
  * value to a scaled second value.
  */
-unsigned long
+unsigned long __intentional_overflow(-1)
 timespec_to_jiffies(const struct timespec *value)
 {
 	unsigned long sec = value->tv_sec;
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index f11d83b..d016d91 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -750,7 +750,7 @@ static int __init alarmtimer_init(void)
 	struct platform_device *pdev;
 	int error = 0;
 	int i;
-	struct k_clock alarm_clock = {
+	static struct k_clock alarm_clock = {
 		.clock_getres	= alarm_clock_getres,
 		.clock_get	= alarm_clock_get,
 		.timer_create	= alarm_timer_create,
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 90ad470..1814e9a 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -138,7 +138,7 @@ int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu)
 		 * then clear the broadcast bit.
 		 */
 		if (!(dev->features & CLOCK_EVT_FEAT_C3STOP)) {
-			int cpu = smp_processor_id();
+			cpu = smp_processor_id();
 			cpumask_clear_cpu(cpu, tick_get_broadcast_mask());
 			tick_broadcast_clear_oneshot(cpu);
 		} else {
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 9a0bc98..fceb7d0 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -15,6 +15,7 @@
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
+#include <linux/grsecurity.h>
 #include <linux/syscore_ops.h>
 #include <linux/clocksource.h>
 #include <linux/jiffies.h>
@@ -448,6 +449,8 @@ int do_settimeofday(const struct timespec *tv)
 	if (!timespec_valid_strict(tv))
 		return -EINVAL;
 
+	gr_log_timechange();
+
 	write_seqlock_irqsave(&tk->lock, flags);
 
 	timekeeping_forward_now(tk);
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index af5a7e9..715611a 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -38,12 +38,16 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases);
 
 static void print_name_offset(struct seq_file *m, void *sym)
 {
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	SEQ_printf(m, "<%p>", NULL);
+#else
 	char symname[KSYM_NAME_LEN];
 
 	if (lookup_symbol_name((unsigned long)sym, symname) < 0)
 		SEQ_printf(m, "<%pK>", sym);
 	else
 		SEQ_printf(m, "%s", symname);
+#endif
 }
 
 static void
@@ -112,7 +116,11 @@ next_one:
 static void
 print_base(struct seq_file *m, struct hrtimer_clock_base *base, u64 now)
 {
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	SEQ_printf(m, "  .base:       %p\n", NULL);
+#else
 	SEQ_printf(m, "  .base:       %pK\n", base);
+#endif
 	SEQ_printf(m, "  .index:      %d\n",
 			base->index);
 	SEQ_printf(m, "  .resolution: %Lu nsecs\n",
@@ -293,7 +301,11 @@ static int __init init_timer_list_procfs(void)
 {
 	struct proc_dir_entry *pe;
 
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+	pe = proc_create("timer_list", 0400, NULL, &timer_list_fops);
+#else
 	pe = proc_create("timer_list", 0444, NULL, &timer_list_fops);
+#endif
 	if (!pe)
 		return -ENOMEM;
 	return 0;
diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
index 0b537f2..40d6c20 100644
--- a/kernel/time/timer_stats.c
+++ b/kernel/time/timer_stats.c
@@ -116,7 +116,7 @@ static ktime_t time_start, time_stop;
 static unsigned long nr_entries;
 static struct entry entries[MAX_ENTRIES];
 
-static atomic_t overflow_count;
+static atomic_unchecked_t overflow_count;
 
 /*
  * The entries are in a hash-table, for fast lookup:
@@ -140,7 +140,7 @@ static void reset_entries(void)
 	nr_entries = 0;
 	memset(entries, 0, sizeof(entries));
 	memset(tstat_hash_table, 0, sizeof(tstat_hash_table));
-	atomic_set(&overflow_count, 0);
+	atomic_set_unchecked(&overflow_count, 0);
 }
 
 static struct entry *alloc_entry(void)
@@ -261,7 +261,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
 	if (likely(entry))
 		entry->count++;
 	else
-		atomic_inc(&overflow_count);
+		atomic_inc_unchecked(&overflow_count);
 
  out_unlock:
 	raw_spin_unlock_irqrestore(lock, flags);
@@ -269,12 +269,16 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
 
 static void print_name_offset(struct seq_file *m, unsigned long addr)
 {
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	seq_printf(m, "<%p>", NULL);
+#else
 	char symname[KSYM_NAME_LEN];
 
 	if (lookup_symbol_name(addr, symname) < 0)
-		seq_printf(m, "<%p>", (void *)addr);
+		seq_printf(m, "<%pK>", (void *)addr);
 	else
 		seq_printf(m, "%s", symname);
+#endif
 }
 
 static int tstats_show(struct seq_file *m, void *v)
@@ -300,9 +304,9 @@ static int tstats_show(struct seq_file *m, void *v)
 
 	seq_puts(m, "Timer Stats Version: v0.2\n");
 	seq_printf(m, "Sample period: %ld.%03ld s\n", period.tv_sec, ms);
-	if (atomic_read(&overflow_count))
+	if (atomic_read_unchecked(&overflow_count))
 		seq_printf(m, "Overflow: %d entries\n",
-			atomic_read(&overflow_count));
+			atomic_read_unchecked(&overflow_count));
 
 	for (i = 0; i < nr_entries; i++) {
 		entry = entries + i;
@@ -417,7 +421,11 @@ static int __init init_tstats_procfs(void)
 {
 	struct proc_dir_entry *pe;
 
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+	pe = proc_create("timer_stats", 0600, NULL, &tstats_fops);
+#else
 	pe = proc_create("timer_stats", 0644, NULL, &tstats_fops);
+#endif
 	if (!pe)
 		return -ENOMEM;
 	return 0;
diff --git a/kernel/timer.c b/kernel/timer.c
index 1b399c8..90e1849 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1363,7 +1363,7 @@ void update_process_times(int user_tick)
 /*
  * This function runs timers and the timer-tq in bottom half context.
  */
-static void run_timer_softirq(struct softirq_action *h)
+static void run_timer_softirq(void)
 {
 	struct tvec_base *base = __this_cpu_read(tvec_bases);
 
@@ -1481,7 +1481,7 @@ static void process_timeout(unsigned long __data)
  *
  * In all cases the return value is guaranteed to be non-negative.
  */
-signed long __sched schedule_timeout(signed long timeout)
+signed long __sched __intentional_overflow(-1) schedule_timeout(signed long timeout)
 {
 	struct timer_list timer;
 	unsigned long expire;
@@ -1772,7 +1772,7 @@ static int __cpuinit timer_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata timers_nb = {
+static struct notifier_block timers_nb = {
 	.notifier_call	= timer_cpu_notify,
 };
 
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 5a0f781..1497f95 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -317,7 +317,7 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer,
 	struct blk_trace *bt = filp->private_data;
 	char buf[16];
 
-	snprintf(buf, sizeof(buf), "%u\n", atomic_read(&bt->dropped));
+	snprintf(buf, sizeof(buf), "%u\n", atomic_read_unchecked(&bt->dropped));
 
 	return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
 }
@@ -375,7 +375,7 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf,
 		return 1;
 
 	bt = buf->chan->private_data;
-	atomic_inc(&bt->dropped);
+	atomic_inc_unchecked(&bt->dropped);
 	return 0;
 }
 
@@ -476,7 +476,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
 
 	bt->dir = dir;
 	bt->dev = dev;
-	atomic_set(&bt->dropped, 0);
+	atomic_set_unchecked(&bt->dropped, 0);
 
 	ret = -EIO;
 	bt->dropped_file = debugfs_create_file("dropped", 0444, dir, bt,
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 0a0e2a6..943495e 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1909,12 +1909,17 @@ ftrace_code_disable(struct module *mod, struct dyn_ftrace *rec)
 	if (unlikely(ftrace_disabled))
 		return 0;
 
+	ret = ftrace_arch_code_modify_prepare();
+	FTRACE_WARN_ON(ret);
+	if (ret)
+		return 0;
+
 	ret = ftrace_make_nop(mod, rec, MCOUNT_ADDR);
+	FTRACE_WARN_ON(ftrace_arch_code_modify_post_process());
 	if (ret) {
 		ftrace_bug(ret, ip);
-		return 0;
 	}
-	return 1;
+	return ret ? 0 : 1;
 }
 
 /*
@@ -2986,7 +2991,7 @@ static void ftrace_free_entry_rcu(struct rcu_head *rhp)
 
 int
 register_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
-			      void *data)
+				void *data)
 {
 	struct ftrace_func_probe *entry;
 	struct ftrace_page *pg;
@@ -3854,8 +3859,10 @@ static int ftrace_process_locs(struct module *mod,
 	if (!count)
 		return 0;
 
+	pax_open_kernel();
 	sort(start, count, sizeof(*start),
 	     ftrace_cmp_ips, ftrace_swap_ips);
+	pax_close_kernel();
 
 	start_pg = ftrace_allocate_pages(count);
 	if (!start_pg)
@@ -4574,8 +4581,6 @@ ftrace_enable_sysctl(struct ctl_table *table, int write,
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 
 static int ftrace_graph_active;
-static struct notifier_block ftrace_suspend_notifier;
-
 int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace)
 {
 	return 0;
@@ -4719,6 +4724,10 @@ ftrace_suspend_notifier_call(struct notifier_block *bl, unsigned long state,
 	return NOTIFY_DONE;
 }
 
+static struct notifier_block ftrace_suspend_notifier = {
+	.notifier_call = ftrace_suspend_notifier_call
+};
+
 int register_ftrace_graph(trace_func_graph_ret_t retfunc,
 			trace_func_graph_ent_t entryfunc)
 {
@@ -4732,7 +4741,6 @@ int register_ftrace_graph(trace_func_graph_ret_t retfunc,
 		goto out;
 	}
 
-	ftrace_suspend_notifier.notifier_call = ftrace_suspend_notifier_call;
 	register_pm_notifier(&ftrace_suspend_notifier);
 
 	ftrace_graph_active++;
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 6989df2..c2265cf 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -349,9 +349,9 @@ struct buffer_data_page {
  */
 struct buffer_page {
 	struct list_head list;		/* list of buffer pages */
-	local_t		 write;		/* index for next write */
+	local_unchecked_t	 write;		/* index for next write */
 	unsigned	 read;		/* index for next read */
-	local_t		 entries;	/* entries on this page */
+	local_unchecked_t	 entries;	/* entries on this page */
 	unsigned long	 real_end;	/* real end of data */
 	struct buffer_data_page *page;	/* Actual data page */
 };
@@ -464,8 +464,8 @@ struct ring_buffer_per_cpu {
 	unsigned long			last_overrun;
 	local_t				entries_bytes;
 	local_t				entries;
-	local_t				overrun;
-	local_t				commit_overrun;
+	local_unchecked_t		overrun;
+	local_unchecked_t		commit_overrun;
 	local_t				dropped_events;
 	local_t				committing;
 	local_t				commits;
@@ -864,8 +864,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
 	 *
 	 * We add a counter to the write field to denote this.
 	 */
-	old_write = local_add_return(RB_WRITE_INTCNT, &next_page->write);
-	old_entries = local_add_return(RB_WRITE_INTCNT, &next_page->entries);
+	old_write = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->write);
+	old_entries = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->entries);
 
 	/*
 	 * Just make sure we have seen our old_write and synchronize
@@ -893,8 +893,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
 		 * cmpxchg to only update if an interrupt did not already
 		 * do it for us. If the cmpxchg fails, we don't care.
 		 */
-		(void)local_cmpxchg(&next_page->write, old_write, val);
-		(void)local_cmpxchg(&next_page->entries, old_entries, eval);
+		(void)local_cmpxchg_unchecked(&next_page->write, old_write, val);
+		(void)local_cmpxchg_unchecked(&next_page->entries, old_entries, eval);
 
 		/*
 		 * No need to worry about races with clearing out the commit.
@@ -1253,12 +1253,12 @@ static void rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer);
 
 static inline unsigned long rb_page_entries(struct buffer_page *bpage)
 {
-	return local_read(&bpage->entries) & RB_WRITE_MASK;
+	return local_read_unchecked(&bpage->entries) & RB_WRITE_MASK;
 }
 
 static inline unsigned long rb_page_write(struct buffer_page *bpage)
 {
-	return local_read(&bpage->write) & RB_WRITE_MASK;
+	return local_read_unchecked(&bpage->write) & RB_WRITE_MASK;
 }
 
 static int
@@ -1353,7 +1353,7 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned int nr_pages)
 			 * bytes consumed in ring buffer from here.
 			 * Increment overrun to account for the lost events.
 			 */
-			local_add(page_entries, &cpu_buffer->overrun);
+			local_add_unchecked(page_entries, &cpu_buffer->overrun);
 			local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
 		}
 
@@ -1909,7 +1909,7 @@ rb_handle_head_page(struct ring_buffer_per_cpu *cpu_buffer,
 		 * it is our responsibility to update
 		 * the counters.
 		 */
-		local_add(entries, &cpu_buffer->overrun);
+		local_add_unchecked(entries, &cpu_buffer->overrun);
 		local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
 
 		/*
@@ -2059,7 +2059,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
 		if (tail == BUF_PAGE_SIZE)
 			tail_page->real_end = 0;
 
-		local_sub(length, &tail_page->write);
+		local_sub_unchecked(length, &tail_page->write);
 		return;
 	}
 
@@ -2094,7 +2094,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
 		rb_event_set_padding(event);
 
 		/* Set the write back to the previous setting */
-		local_sub(length, &tail_page->write);
+		local_sub_unchecked(length, &tail_page->write);
 		return;
 	}
 
@@ -2106,7 +2106,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
 
 	/* Set write to end of buffer */
 	length = (tail + length) - BUF_PAGE_SIZE;
-	local_sub(length, &tail_page->write);
+	local_sub_unchecked(length, &tail_page->write);
 }
 
 /*
@@ -2132,7 +2132,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
 	 * about it.
 	 */
 	if (unlikely(next_page == commit_page)) {
-		local_inc(&cpu_buffer->commit_overrun);
+		local_inc_unchecked(&cpu_buffer->commit_overrun);
 		goto out_reset;
 	}
 
@@ -2188,7 +2188,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
 				      cpu_buffer->tail_page) &&
 				     (cpu_buffer->commit_page ==
 				      cpu_buffer->reader_page))) {
-				local_inc(&cpu_buffer->commit_overrun);
+				local_inc_unchecked(&cpu_buffer->commit_overrun);
 				goto out_reset;
 			}
 		}
@@ -2236,7 +2236,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
 		length += RB_LEN_TIME_EXTEND;
 
 	tail_page = cpu_buffer->tail_page;
-	write = local_add_return(length, &tail_page->write);
+	write = local_add_return_unchecked(length, &tail_page->write);
 
 	/* set write to only the index of the write */
 	write &= RB_WRITE_MASK;
@@ -2253,7 +2253,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
 	kmemcheck_annotate_bitfield(event, bitfield);
 	rb_update_event(cpu_buffer, event, length, add_timestamp, delta);
 
-	local_inc(&tail_page->entries);
+	local_inc_unchecked(&tail_page->entries);
 
 	/*
 	 * If this is the first commit on the page, then update
@@ -2286,7 +2286,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
 
 	if (bpage->page == (void *)addr && rb_page_write(bpage) == old_index) {
 		unsigned long write_mask =
-			local_read(&bpage->write) & ~RB_WRITE_MASK;
+			local_read_unchecked(&bpage->write) & ~RB_WRITE_MASK;
 		unsigned long event_length = rb_event_length(event);
 		/*
 		 * This is on the tail page. It is possible that
@@ -2296,7 +2296,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
 		 */
 		old_index += write_mask;
 		new_index += write_mask;
-		index = local_cmpxchg(&bpage->write, old_index, new_index);
+		index = local_cmpxchg_unchecked(&bpage->write, old_index, new_index);
 		if (index == old_index) {
 			/* update counters */
 			local_sub(event_length, &cpu_buffer->entries_bytes);
@@ -2670,7 +2670,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
 
 	/* Do the likely case first */
 	if (likely(bpage->page == (void *)addr)) {
-		local_dec(&bpage->entries);
+		local_dec_unchecked(&bpage->entries);
 		return;
 	}
 
@@ -2682,7 +2682,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
 	start = bpage;
 	do {
 		if (bpage->page == (void *)addr) {
-			local_dec(&bpage->entries);
+			local_dec_unchecked(&bpage->entries);
 			return;
 		}
 		rb_inc_page(cpu_buffer, &bpage);
@@ -2964,7 +2964,7 @@ static inline unsigned long
 rb_num_of_entries(struct ring_buffer_per_cpu *cpu_buffer)
 {
 	return local_read(&cpu_buffer->entries) -
-		(local_read(&cpu_buffer->overrun) + cpu_buffer->read);
+		(local_read_unchecked(&cpu_buffer->overrun) + cpu_buffer->read);
 }
 
 /**
@@ -3053,7 +3053,7 @@ unsigned long ring_buffer_overrun_cpu(struct ring_buffer *buffer, int cpu)
 		return 0;
 
 	cpu_buffer = buffer->buffers[cpu];
-	ret = local_read(&cpu_buffer->overrun);
+	ret = local_read_unchecked(&cpu_buffer->overrun);
 
 	return ret;
 }
@@ -3076,7 +3076,7 @@ ring_buffer_commit_overrun_cpu(struct ring_buffer *buffer, int cpu)
 		return 0;
 
 	cpu_buffer = buffer->buffers[cpu];
-	ret = local_read(&cpu_buffer->commit_overrun);
+	ret = local_read_unchecked(&cpu_buffer->commit_overrun);
 
 	return ret;
 }
@@ -3161,7 +3161,7 @@ unsigned long ring_buffer_overruns(struct ring_buffer *buffer)
 	/* if you care about this being correct, lock the buffer */
 	for_each_buffer_cpu(buffer, cpu) {
 		cpu_buffer = buffer->buffers[cpu];
-		overruns += local_read(&cpu_buffer->overrun);
+		overruns += local_read_unchecked(&cpu_buffer->overrun);
 	}
 
 	return overruns;
@@ -3337,8 +3337,8 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
 	/*
 	 * Reset the reader page to size zero.
 	 */
-	local_set(&cpu_buffer->reader_page->write, 0);
-	local_set(&cpu_buffer->reader_page->entries, 0);
+	local_set_unchecked(&cpu_buffer->reader_page->write, 0);
+	local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
 	local_set(&cpu_buffer->reader_page->page->commit, 0);
 	cpu_buffer->reader_page->real_end = 0;
 
@@ -3372,7 +3372,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
 	 * want to compare with the last_overrun.
 	 */
 	smp_mb();
-	overwrite = local_read(&(cpu_buffer->overrun));
+	overwrite = local_read_unchecked(&(cpu_buffer->overrun));
 
 	/*
 	 * Here's the tricky part.
@@ -3942,8 +3942,8 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
 
 	cpu_buffer->head_page
 		= list_entry(cpu_buffer->pages, struct buffer_page, list);
-	local_set(&cpu_buffer->head_page->write, 0);
-	local_set(&cpu_buffer->head_page->entries, 0);
+	local_set_unchecked(&cpu_buffer->head_page->write, 0);
+	local_set_unchecked(&cpu_buffer->head_page->entries, 0);
 	local_set(&cpu_buffer->head_page->page->commit, 0);
 
 	cpu_buffer->head_page->read = 0;
@@ -3953,14 +3953,14 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
 
 	INIT_LIST_HEAD(&cpu_buffer->reader_page->list);
 	INIT_LIST_HEAD(&cpu_buffer->new_pages);
-	local_set(&cpu_buffer->reader_page->write, 0);
-	local_set(&cpu_buffer->reader_page->entries, 0);
+	local_set_unchecked(&cpu_buffer->reader_page->write, 0);
+	local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
 	local_set(&cpu_buffer->reader_page->page->commit, 0);
 	cpu_buffer->reader_page->read = 0;
 
 	local_set(&cpu_buffer->entries_bytes, 0);
-	local_set(&cpu_buffer->overrun, 0);
-	local_set(&cpu_buffer->commit_overrun, 0);
+	local_set_unchecked(&cpu_buffer->overrun, 0);
+	local_set_unchecked(&cpu_buffer->commit_overrun, 0);
 	local_set(&cpu_buffer->dropped_events, 0);
 	local_set(&cpu_buffer->entries, 0);
 	local_set(&cpu_buffer->committing, 0);
@@ -4364,8 +4364,8 @@ int ring_buffer_read_page(struct ring_buffer *buffer,
 		rb_init_page(bpage);
 		bpage = reader->page;
 		reader->page = *data_page;
-		local_set(&reader->write, 0);
-		local_set(&reader->entries, 0);
+		local_set_unchecked(&reader->write, 0);
+		local_set_unchecked(&reader->entries, 0);
 		reader->read = 0;
 		*data_page = bpage;
 
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 3f28192..a29e8b0 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2893,7 +2893,7 @@ int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set)
 	return 0;
 }
 
-int set_tracer_flag(unsigned int mask, int enabled)
+int set_tracer_flag(unsigned long mask, int enabled)
 {
 	/* do nothing if flag is already set */
 	if (!!(trace_flags & mask) == !!enabled)
@@ -4637,10 +4637,9 @@ static const struct file_operations tracing_dyn_info_fops = {
 };
 #endif
 
-static struct dentry *d_tracer;
-
 struct dentry *tracing_init_dentry(void)
 {
+	static struct dentry *d_tracer;
 	static int once;
 
 	if (d_tracer)
@@ -4660,10 +4659,9 @@ struct dentry *tracing_init_dentry(void)
 	return d_tracer;
 }
 
-static struct dentry *d_percpu;
-
 static struct dentry *tracing_dentry_percpu(void)
 {
+	static struct dentry *d_percpu;
 	static int once;
 	struct dentry *d_tracer;
 
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 2081971..09f861e 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -948,7 +948,7 @@ extern const char *__stop___trace_bprintk_fmt[];
 void trace_printk_init_buffers(void);
 void trace_printk_start_comm(void);
 int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set);
-int set_tracer_flag(unsigned int mask, int enabled);
+int set_tracer_flag(unsigned long mask, int enabled);
 
 #undef FTRACE_ENTRY
 #define FTRACE_ENTRY(call, struct_name, id, tstruct, print, filter)	\
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 57e9b28..eebe41c 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1329,10 +1329,6 @@ static LIST_HEAD(ftrace_module_file_list);
 struct ftrace_module_file_ops {
 	struct list_head		list;
 	struct module			*mod;
-	struct file_operations		id;
-	struct file_operations		enable;
-	struct file_operations		format;
-	struct file_operations		filter;
 };
 
 static struct ftrace_module_file_ops *
@@ -1353,17 +1349,12 @@ trace_create_file_ops(struct module *mod)
 
 	file_ops->mod = mod;
 
-	file_ops->id = ftrace_event_id_fops;
-	file_ops->id.owner = mod;
-
-	file_ops->enable = ftrace_enable_fops;
-	file_ops->enable.owner = mod;
-
-	file_ops->filter = ftrace_event_filter_fops;
-	file_ops->filter.owner = mod;
-
-	file_ops->format = ftrace_event_format_fops;
-	file_ops->format.owner = mod;
+	pax_open_kernel();
+	mod->trace_id.owner = mod;
+	mod->trace_enable.owner = mod;
+	mod->trace_filter.owner = mod;
+	mod->trace_format.owner = mod;
+	pax_close_kernel();
 
 	list_add(&file_ops->list, &ftrace_module_file_list);
 
@@ -1387,8 +1378,8 @@ static void trace_module_add_events(struct module *mod)
 
 	for_each_event(call, start, end) {
 		__trace_add_event_call(*call, mod,
-				       &file_ops->id, &file_ops->enable,
-				       &file_ops->filter, &file_ops->format);
+				       &mod->trace_id, &mod->trace_enable,
+				       &mod->trace_filter, &mod->trace_format);
 	}
 }
 
diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index fd3c8aa..5f324a6 100644
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -24,7 +24,7 @@ struct header_iter {
 static struct trace_array *mmio_trace_array;
 static bool overrun_detected;
 static unsigned long prev_overruns;
-static atomic_t dropped_count;
+static atomic_unchecked_t dropped_count;
 
 static void mmio_reset_data(struct trace_array *tr)
 {
@@ -127,7 +127,7 @@ static void mmio_close(struct trace_iterator *iter)
 
 static unsigned long count_overruns(struct trace_iterator *iter)
 {
-	unsigned long cnt = atomic_xchg(&dropped_count, 0);
+	unsigned long cnt = atomic_xchg_unchecked(&dropped_count, 0);
 	unsigned long over = ring_buffer_overruns(iter->tr->buffer);
 
 	if (over > prev_overruns)
@@ -317,7 +317,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
 	event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW,
 					  sizeof(*entry), 0, pc);
 	if (!event) {
-		atomic_inc(&dropped_count);
+		atomic_inc_unchecked(&dropped_count);
 		return;
 	}
 	entry	= ring_buffer_event_data(event);
@@ -347,7 +347,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
 	event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP,
 					  sizeof(*entry), 0, pc);
 	if (!event) {
-		atomic_inc(&dropped_count);
+		atomic_inc_unchecked(&dropped_count);
 		return;
 	}
 	entry	= ring_buffer_event_data(event);
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 697e88d..1a79993 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -278,7 +278,7 @@ int trace_seq_path(struct trace_seq *s, const struct path *path)
 
 	p = d_path(path, s->buffer + s->len, PAGE_SIZE - s->len);
 	if (!IS_ERR(p)) {
-		p = mangle_path(s->buffer + s->len, p, "\n");
+		p = mangle_path(s->buffer + s->len, p, "\n\\");
 		if (p) {
 			s->len = p - s->buffer;
 			return 1;
@@ -851,14 +851,16 @@ int register_ftrace_event(struct trace_event *event)
 			goto out;
 	}
 
+	pax_open_kernel();
 	if (event->funcs->trace == NULL)
-		event->funcs->trace = trace_nop_print;
+		*(void **)&event->funcs->trace = trace_nop_print;
 	if (event->funcs->raw == NULL)
-		event->funcs->raw = trace_nop_print;
+		*(void **)&event->funcs->raw = trace_nop_print;
 	if (event->funcs->hex == NULL)
-		event->funcs->hex = trace_nop_print;
+		*(void **)&event->funcs->hex = trace_nop_print;
 	if (event->funcs->binary == NULL)
-		event->funcs->binary = trace_nop_print;
+		*(void **)&event->funcs->binary = trace_nop_print;
+	pax_close_kernel();
 
 	key = event->type & (EVENT_HASHSIZE - 1);
 
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index b20428c..4845a10 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -68,7 +68,7 @@ check_stack(unsigned long ip, unsigned long *stack)
 		return;
 
 	/* we do not handle interrupt stacks yet */
-	if (!object_is_on_stack(stack))
+	if (!object_starts_on_stack(stack))
 		return;
 
 	local_irq_save(flags);
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index e134d8f..a018cdd 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -853,7 +853,7 @@ static int userns_install(struct nsproxy *nsproxy, void *ns)
 	if (atomic_read(&current->mm->mm_users) > 1)
 		return -EINVAL;
 
-	if (current->fs->users != 1)
+	if (atomic_read(&current->fs->users) != 1)
 		return -EINVAL;
 
 	if (!ns_capable(user_ns, CAP_SYS_ADMIN))
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index 4f69f9a..7c6f8f8 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -47,7 +47,7 @@ static void put_uts(ctl_table *table, int write, void *which)
 static int proc_do_uts_string(ctl_table *table, int write,
 		  void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table uts_table;
+	ctl_table_no_const uts_table;
 	int r;
 	memcpy(&uts_table, table, sizeof(uts_table));
 	uts_table.data = get_uts(table, write);
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 4a94467..80a6f9c 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -526,7 +526,7 @@ int proc_dowatchdog(struct ctl_table *table, int write,
 }
 #endif /* CONFIG_SYSCTL */
 
-static struct smp_hotplug_thread watchdog_threads = {
+static struct smp_hotplug_thread watchdog_threads __read_only = {
 	.store			= &softlockup_watchdog,
 	.thread_should_run	= watchdog_should_run,
 	.thread_fn		= watchdog,
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 28be08c..47bab92 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -549,7 +549,7 @@ config DEBUG_MUTEXES
 
 config DEBUG_LOCK_ALLOC
 	bool "Lock debugging: detect incorrect freeing of live locks"
-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
 	select DEBUG_SPINLOCK
 	select DEBUG_MUTEXES
 	select LOCKDEP
@@ -563,7 +563,7 @@ config DEBUG_LOCK_ALLOC
 
 config PROVE_LOCKING
 	bool "Lock debugging: prove locking correctness"
-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
 	select LOCKDEP
 	select DEBUG_SPINLOCK
 	select DEBUG_MUTEXES
@@ -614,7 +614,7 @@ config LOCKDEP
 
 config LOCK_STAT
 	bool "Lock usage statistics"
-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
 	select LOCKDEP
 	select DEBUG_SPINLOCK
 	select DEBUG_MUTEXES
@@ -1282,6 +1282,7 @@ config LATENCYTOP
 	depends on DEBUG_KERNEL
 	depends on STACKTRACE_SUPPORT
 	depends on PROC_FS
+	depends on !GRKERNSEC_HIDESYM
 	select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND
 	select KALLSYMS
 	select KALLSYMS_ALL
@@ -1310,7 +1311,7 @@ config INTERVAL_TREE_TEST
 
 config PROVIDE_OHCI1394_DMA_INIT
 	bool "Remote debugging over FireWire early on boot"
-	depends on PCI && X86
+	depends on PCI && X86 && !GRKERNSEC
 	help
 	  If you want to debug problems which hang or crash the kernel early
 	  on boot and the crashing machine has a FireWire port, you can use
@@ -1339,7 +1340,7 @@ config PROVIDE_OHCI1394_DMA_INIT
 
 config FIREWIRE_OHCI_REMOTE_DMA
 	bool "Remote debugging over FireWire with firewire-ohci"
-	depends on FIREWIRE_OHCI
+	depends on FIREWIRE_OHCI && !GRKERNSEC
 	help
 	  This option lets you use the FireWire bus for remote debugging
 	  with help of the firewire-ohci driver. It enables unfiltered
diff --git a/lib/Makefile b/lib/Makefile
index 6e2cc56..9b13738 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -47,7 +47,7 @@ obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
 
 obj-$(CONFIG_BTREE) += btree.o
 obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
-obj-$(CONFIG_DEBUG_LIST) += list_debug.o
+obj-y += list_debug.o
 obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
 
 ifneq ($(CONFIG_HAVE_DEC_LOCK),y)
diff --git a/lib/bitmap.c b/lib/bitmap.c
index 06f7e4f..f3cf2b0 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -422,7 +422,7 @@ int __bitmap_parse(const char *buf, unsigned int buflen,
 {
 	int c, old_c, totaldigits, ndigits, nchunks, nbits;
 	u32 chunk;
-	const char __user __force *ubuf = (const char __user __force *)buf;
+	const char __user *ubuf = (const char __force_user *)buf;
 
 	bitmap_zero(maskp, nmaskbits);
 
@@ -507,7 +507,7 @@ int bitmap_parse_user(const char __user *ubuf,
 {
 	if (!access_ok(VERIFY_READ, ubuf, ulen))
 		return -EFAULT;
-	return __bitmap_parse((const char __force *)ubuf,
+	return __bitmap_parse((const char __force_kernel *)ubuf,
 				ulen, 1, maskp, nmaskbits);
 
 }
@@ -598,7 +598,7 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
 {
 	unsigned a, b;
 	int c, old_c, totaldigits;
-	const char __user __force *ubuf = (const char __user __force *)buf;
+	const char __user *ubuf = (const char __force_user *)buf;
 	int exp_digit, in_range;
 
 	totaldigits = c = 0;
@@ -698,7 +698,7 @@ int bitmap_parselist_user(const char __user *ubuf,
 {
 	if (!access_ok(VERIFY_READ, ubuf, ulen))
 		return -EFAULT;
-	return __bitmap_parselist((const char __force *)ubuf,
+	return __bitmap_parselist((const char __force_kernel *)ubuf,
 					ulen, 1, maskp, nmaskbits);
 }
 EXPORT_SYMBOL(bitmap_parselist_user);
diff --git a/lib/bug.c b/lib/bug.c
index 1686034..a9c00c8 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -134,6 +134,8 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
 		return BUG_TRAP_TYPE_NONE;
 
 	bug = find_bug(bugaddr);
+	if (!bug)
+		return BUG_TRAP_TYPE_NONE;
 
 	file = NULL;
 	line = 0;
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index 37061ed..da83f48 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -286,7 +286,7 @@ static void debug_object_is_on_stack(void *addr, int onstack)
 	if (limit > 4)
 		return;
 
-	is_on_stack = object_is_on_stack(addr);
+	is_on_stack = object_starts_on_stack(addr);
 	if (is_on_stack == onstack)
 		return;
 
diff --git a/lib/devres.c b/lib/devres.c
index 8235331..5881053 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -81,7 +81,7 @@ EXPORT_SYMBOL(devm_ioremap_nocache);
 void devm_iounmap(struct device *dev, void __iomem *addr)
 {
 	WARN_ON(devres_destroy(dev, devm_ioremap_release, devm_ioremap_match,
-			       (void *)addr));
+			       (void __force *)addr));
 	iounmap(addr);
 }
 EXPORT_SYMBOL(devm_iounmap);
@@ -224,7 +224,7 @@ void devm_ioport_unmap(struct device *dev, void __iomem *addr)
 {
 	ioport_unmap(addr);
 	WARN_ON(devres_destroy(dev, devm_ioport_map_release,
-			       devm_ioport_map_match, (void *)addr));
+			       devm_ioport_map_match, (void __force *)addr));
 }
 EXPORT_SYMBOL(devm_ioport_unmap);
 #endif /* CONFIG_HAS_IOPORT */
diff --git a/lib/div64.c b/lib/div64.c
index a163b6c..9618fa5 100644
--- a/lib/div64.c
+++ b/lib/div64.c
@@ -59,7 +59,7 @@ uint32_t __attribute__((weak)) __div64_32(uint64_t *n, uint32_t base)
 EXPORT_SYMBOL(__div64_32);
 
 #ifndef div_s64_rem
-s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
+s64 __intentional_overflow(-1) div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
 {
 	u64 quotient;
 
@@ -90,7 +90,7 @@ EXPORT_SYMBOL(div_s64_rem);
  * 'http://www.hackersdelight.org/HDcode/newCode/divDouble.c.txt'
  */
 #ifndef div64_u64
-u64 div64_u64(u64 dividend, u64 divisor)
+u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
 {
 	u32 high = divisor >> 32;
 	u64 quot;
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index d87a17a..ac0d79a 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -768,7 +768,7 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti
 
 void dma_debug_add_bus(struct bus_type *bus)
 {
-	struct notifier_block *nb;
+	notifier_block_no_const *nb;
 
 	if (global_disable)
 		return;
@@ -945,7 +945,7 @@ static void check_unmap(struct dma_debug_entry *ref)
 
 static void check_for_stack(struct device *dev, void *addr)
 {
-	if (object_is_on_stack(addr))
+	if (object_starts_on_stack(addr))
 		err_printk(dev, NULL, "DMA-API: device driver maps memory from"
 				"stack [addr=%p]\n", addr);
 }
diff --git a/lib/inflate.c b/lib/inflate.c
index 013a761..c28f3fc 100644
--- a/lib/inflate.c
+++ b/lib/inflate.c
@@ -269,7 +269,7 @@ static void free(void *where)
 		malloc_ptr = free_mem_ptr;
 }
 #else
-#define malloc(a) kmalloc(a, GFP_KERNEL)
+#define malloc(a) kmalloc((a), GFP_KERNEL)
 #define free(a) kfree(a)
 #endif
 
diff --git a/lib/ioremap.c b/lib/ioremap.c
index 0c9216c..863bd89 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -38,7 +38,7 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
 	unsigned long next;
 
 	phys_addr -= addr;
-	pmd = pmd_alloc(&init_mm, pud, addr);
+	pmd = pmd_alloc_kernel(&init_mm, pud, addr);
 	if (!pmd)
 		return -ENOMEM;
 	do {
@@ -56,7 +56,7 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
 	unsigned long next;
 
 	phys_addr -= addr;
-	pud = pud_alloc(&init_mm, pgd, addr);
+	pud = pud_alloc_kernel(&init_mm, pgd, addr);
 	if (!pud)
 		return -ENOMEM;
 	do {
diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
index bd2bea9..6b3c95e 100644
--- a/lib/is_single_threaded.c
+++ b/lib/is_single_threaded.c
@@ -22,6 +22,9 @@ bool current_is_single_threaded(void)
 	struct task_struct *p, *t;
 	bool ret;
 
+	if (!mm)
+		return true;
+
 	if (atomic_read(&task->signal->live) != 1)
 		return false;
 
diff --git a/lib/kobject.c b/lib/kobject.c
index a654866..a4fd13d 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -859,9 +859,9 @@ EXPORT_SYMBOL_GPL(kset_create_and_add);
 
 
 static DEFINE_SPINLOCK(kobj_ns_type_lock);
-static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES];
+static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES] __read_only;
 
-int kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
+int __init kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
 {
 	enum kobj_ns_type type = ops->type;
 	int error;
diff --git a/lib/list_debug.c b/lib/list_debug.c
index c24c2f7..06e070b 100644
--- a/lib/list_debug.c
+++ b/lib/list_debug.c
@@ -11,7 +11,9 @@
 #include <linux/bug.h>
 #include <linux/kernel.h>
 #include <linux/rculist.h>
+#include <linux/mm.h>
 
+#ifdef CONFIG_DEBUG_LIST
 /*
  * Insert a new entry between two known consecutive entries.
  *
@@ -19,21 +21,32 @@
  * the prev/next entries already!
  */
 
-void __list_add(struct list_head *new,
-			      struct list_head *prev,
-			      struct list_head *next)
+static bool __list_add_debug(struct list_head *new,
+			     struct list_head *prev,
+			     struct list_head *next)
 {
-	WARN(next->prev != prev,
+	if (WARN(next->prev != prev,
 		"list_add corruption. next->prev should be "
 		"prev (%p), but was %p. (next=%p).\n",
-		prev, next->prev, next);
-	WARN(prev->next != next,
+		prev, next->prev, next) ||
+	    WARN(prev->next != next,
 		"list_add corruption. prev->next should be "
 		"next (%p), but was %p. (prev=%p).\n",
-		next, prev->next, prev);
-	WARN(new == prev || new == next,
-	     "list_add double add: new=%p, prev=%p, next=%p.\n",
-	     new, prev, next);
+		next, prev->next, prev) ||
+	    WARN(new == prev || new == next,
+		"list_add double add: new=%p, prev=%p, next=%p.\n",
+		new, prev, next))
+		return false;
+	return true;
+}
+
+void __list_add(struct list_head *new,
+		struct list_head *prev,
+		struct list_head *next)
+{
+	if (!__list_add_debug(new, prev, next))
+		return;
+
 	next->prev = new;
 	new->next = next;
 	new->prev = prev;
@@ -41,7 +54,7 @@ void __list_add(struct list_head *new,
 }
 EXPORT_SYMBOL(__list_add);
 
-void __list_del_entry(struct list_head *entry)
+static bool __list_del_entry_debug(struct list_head *entry)
 {
 	struct list_head *prev, *next;
 
@@ -60,9 +73,16 @@ void __list_del_entry(struct list_head *entry)
 	    WARN(next->prev != entry,
 		"list_del corruption. next->prev should be %p, "
 		"but was %p\n", entry, next->prev))
+		return false;
+	return true;
+}
+
+void __list_del_entry(struct list_head *entry)
+{
+	if (!__list_del_entry_debug(entry))
 		return;
 
-	__list_del(prev, next);
+	__list_del(entry->prev, entry->next);
 }
 EXPORT_SYMBOL(__list_del_entry);
 
@@ -86,15 +106,85 @@ EXPORT_SYMBOL(list_del);
 void __list_add_rcu(struct list_head *new,
 		    struct list_head *prev, struct list_head *next)
 {
-	WARN(next->prev != prev,
-		"list_add_rcu corruption. next->prev should be prev (%p), but was %p. (next=%p).\n",
-		prev, next->prev, next);
-	WARN(prev->next != next,
-		"list_add_rcu corruption. prev->next should be next (%p), but was %p. (prev=%p).\n",
-		next, prev->next, prev);
+	if (!__list_add_debug(new, prev, next))
+		return;
+
 	new->next = next;
 	new->prev = prev;
 	rcu_assign_pointer(list_next_rcu(prev), new);
 	next->prev = new;
 }
 EXPORT_SYMBOL(__list_add_rcu);
+#endif
+
+void __pax_list_add(struct list_head *new, struct list_head *prev, struct list_head *next)
+{
+#ifdef CONFIG_DEBUG_LIST
+	if (!__list_add_debug(new, prev, next))
+		return;
+#endif
+
+	pax_open_kernel();
+	next->prev = new;
+	new->next = next;
+	new->prev = prev;
+	prev->next = new;
+	pax_close_kernel();
+}
+EXPORT_SYMBOL(__pax_list_add);
+
+void pax_list_del(struct list_head *entry)
+{
+#ifdef CONFIG_DEBUG_LIST
+	if (!__list_del_entry_debug(entry))
+		return;
+#endif
+
+	pax_open_kernel();
+	__list_del(entry->prev, entry->next);
+	entry->next = LIST_POISON1;
+	entry->prev = LIST_POISON2;
+	pax_close_kernel();
+}
+EXPORT_SYMBOL(pax_list_del);
+
+void pax_list_del_init(struct list_head *entry)
+{
+	pax_open_kernel();
+	__list_del(entry->prev, entry->next);
+	INIT_LIST_HEAD(entry);
+	pax_close_kernel();
+}
+EXPORT_SYMBOL(pax_list_del_init);
+
+void __pax_list_add_rcu(struct list_head *new,
+			struct list_head *prev, struct list_head *next)
+{
+#ifdef CONFIG_DEBUG_LIST
+	if (!__list_add_debug(new, prev, next))
+		return;
+#endif
+
+	pax_open_kernel();
+	new->next = next;
+	new->prev = prev;
+	rcu_assign_pointer(list_next_rcu(prev), new);
+	next->prev = new;
+	pax_close_kernel();
+}
+EXPORT_SYMBOL(__pax_list_add_rcu);
+
+void pax_list_del_rcu(struct list_head *entry)
+{
+#ifdef CONFIG_DEBUG_LIST
+	if (!__list_del_entry_debug(entry))
+		return;
+#endif
+
+	pax_open_kernel();
+	__list_del(entry->prev, entry->next);
+	entry->next = LIST_POISON1;
+	entry->prev = LIST_POISON2;
+	pax_close_kernel();
+}
+EXPORT_SYMBOL(pax_list_del_rcu);
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index e796429..6e38f9f 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -92,7 +92,7 @@ struct radix_tree_preload {
 	int nr;
 	struct radix_tree_node *nodes[RADIX_TREE_PRELOAD_SIZE];
 };
-static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
+static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads);
 
 static inline void *ptr_to_indirect(void *ptr)
 {
diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
index bb2b201..46abaf9 100644
--- a/lib/strncpy_from_user.c
+++ b/lib/strncpy_from_user.c
@@ -21,7 +21,7 @@
  */
 static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max)
 {
-	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
+	static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
 	long res = 0;
 
 	/*
diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
index a28df52..3d55877 100644
--- a/lib/strnlen_user.c
+++ b/lib/strnlen_user.c
@@ -26,7 +26,7 @@
  */
 static inline long do_strnlen_user(const char __user *src, unsigned long count, unsigned long max)
 {
-	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
+	static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
 	long align, res = 0;
 	unsigned long c;
 
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index d23762e..e21eab2 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -664,7 +664,7 @@ EXPORT_SYMBOL(swiotlb_alloc_coherent);
 
 void
 swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
-		      dma_addr_t dev_addr)
+		      dma_addr_t dev_addr, struct dma_attrs *attrs)
 {
 	phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);
 
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 0d62fd7..b7bc911 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -16,6 +16,9 @@
  * - scnprintf and vscnprintf
  */
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+#define __INCLUDED_BY_HIDESYM 1
+#endif
 #include <stdarg.h>
 #include <linux/module.h>	/* for KSYM_SYMBOL_LEN */
 #include <linux/types.h>
@@ -974,7 +977,11 @@ char *netdev_feature_string(char *buf, char *end, const u8 *addr,
 	return number(buf, end, *(const netdev_features_t *)addr, spec);
 }
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+int kptr_restrict __read_mostly = 2;
+#else
 int kptr_restrict __read_mostly;
+#endif
 
 /*
  * Show a '%p' thing.  A kernel extension is that the '%p' is followed
@@ -988,6 +995,8 @@ int kptr_restrict __read_mostly;
  * - 'S' For symbolic direct pointers with offset
  * - 's' For symbolic direct pointers without offset
  * - 'B' For backtraced symbolic direct pointers with offset
+ * - 'A' For symbolic direct pointers with offset approved for use with GRKERNSEC_HIDESYM
+ * - 'a' For symbolic direct pointers without offset approved for use with GRKERNSEC_HIDESYM
  * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
  * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201]
  * - 'M' For a 6-byte MAC address, it prints the address in the
@@ -1044,12 +1053,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 
 	if (!ptr && *fmt != 'K') {
 		/*
-		 * Print (null) with the same width as a pointer so it makes
+		 * Print (nil) with the same width as a pointer so it makes
 		 * tabular output look nice.
 		 */
 		if (spec.field_width == -1)
 			spec.field_width = default_width;
-		return string(buf, end, "(null)", spec);
+		return string(buf, end, "(nil)", spec);
 	}
 
 	switch (*fmt) {
@@ -1059,6 +1068,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 		/* Fallthrough */
 	case 'S':
 	case 's':
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+		break;
+#else
+		return symbol_string(buf, end, ptr, spec, *fmt);
+#endif
+	case 'A':
 	case 'B':
 		return symbol_string(buf, end, ptr, spec, *fmt);
 	case 'R':
@@ -1099,6 +1114,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 			va_end(va);
 			return buf;
 		}
+	case 'P':
+		break;
 	case 'K':
 		/*
 		 * %pK cannot be used in IRQ context because its test
@@ -1128,6 +1145,21 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 		return number(buf, end,
 			      (unsigned long long) *((phys_addr_t *)ptr), spec);
 	}
+
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	/* 'P' = approved pointers to copy to userland,
+	   as in the /proc/kallsyms case, as we make it display nothing
+	   for non-root users, and the real contents for root users
+	   Also ignore 'K' pointers, since we force their NULLing for non-root users
+	   above
+	*/
+	if ((unsigned long)ptr > TASK_SIZE && *fmt != 'P' && *fmt != 'K' && is_usercopy_object(buf)) {
+		printk(KERN_ALERT "grsec: kernel infoleak detected!  Please report this log to spender@grsecurity.net.\n");
+		dump_stack();
+		ptr = NULL;
+	}
+#endif
+
 	spec.flags |= SMALL;
 	if (spec.field_width == -1) {
 		spec.field_width = default_width;
@@ -1849,11 +1881,11 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 	typeof(type) value;						\
 	if (sizeof(type) == 8) {					\
 		args = PTR_ALIGN(args, sizeof(u32));			\
-		*(u32 *)&value = *(u32 *)args;				\
-		*((u32 *)&value + 1) = *(u32 *)(args + 4);		\
+		*(u32 *)&value = *(const u32 *)args;			\
+		*((u32 *)&value + 1) = *(const u32 *)(args + 4);	\
 	} else {							\
 		args = PTR_ALIGN(args, sizeof(type));			\
-		value = *(typeof(type) *)args;				\
+		value = *(const typeof(type) *)args;			\
 	}								\
 	args += sizeof(type);						\
 	value;								\
@@ -1916,7 +1948,7 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 		case FORMAT_TYPE_STR: {
 			const char *str_arg = args;
 			args += strlen(str_arg) + 1;
-			str = string(str, end, (char *)str_arg, spec);
+			str = string(str, end, str_arg, spec);
 			break;
 		}
 
diff --git a/localversion-grsec b/localversion-grsec
new file mode 100644
index 0000000..7cd6065
--- /dev/null
+++ b/localversion-grsec
@@ -0,0 +1 @@
+-grsec
diff --git a/mm/Kconfig b/mm/Kconfig
index 3bea74f..e821c99 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -311,10 +311,10 @@ config KSM
 	  root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
 
 config DEFAULT_MMAP_MIN_ADDR
-        int "Low address space to protect from user allocation"
+	int "Low address space to protect from user allocation"
 	depends on MMU
-        default 4096
-        help
+	default 65536
+	help
 	  This is the portion of low virtual memory which should be protected
 	  from userspace allocation.  Keeping a user from writing to low pages
 	  can help reduce the impact of kernel NULL pointer bugs.
@@ -345,7 +345,7 @@ config MEMORY_FAILURE
 
 config HWPOISON_INJECT
 	tristate "HWPoison pages injector"
-	depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS
+	depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS && !GRKERNSEC
 	select PROC_PAGE_MONITOR
 
 config NOMMU_INITIAL_TRIM_EXCESS
diff --git a/mm/filemap.c b/mm/filemap.c
index e1979fd..dda5120 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1748,7 +1748,7 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma)
 	struct address_space *mapping = file->f_mapping;
 
 	if (!mapping->a_ops->readpage)
-		return -ENOEXEC;
+		return -ENODEV;
 	file_accessed(file);
 	vma->vm_ops = &generic_file_vm_ops;
 	return 0;
@@ -2088,6 +2088,7 @@ inline int generic_write_checks(struct file *file, loff_t *pos, size_t *count, i
                         *pos = i_size_read(inode);
 
 		if (limit != RLIM_INFINITY) {
+			gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0);
 			if (*pos >= limit) {
 				send_sig(SIGXFSZ, current, 0);
 				return -EFBIG;
diff --git a/mm/fremap.c b/mm/fremap.c
index 87da359..3f41cb1 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -158,6 +158,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
  retry:
 	vma = find_vma(mm, start);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC))
+		goto out;
+#endif
+
 	/*
 	 * Make sure the vma is shared, that it supports prefaulting,
 	 * and that the remapped range is valid and fully within
diff --git a/mm/highmem.c b/mm/highmem.c
index b32b70c..e512eb0 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -138,8 +138,9 @@ static void flush_all_zero_pkmaps(void)
 		 * So no dangers, even with speculative execution.
 		 */
 		page = pte_page(pkmap_page_table[i]);
+		pax_open_kernel();
 		pte_clear(&init_mm, PKMAP_ADDR(i), &pkmap_page_table[i]);
-
+		pax_close_kernel();
 		set_page_address(page, NULL);
 		need_flush = 1;
 	}
@@ -198,9 +199,11 @@ start:
 		}
 	}
 	vaddr = PKMAP_ADDR(last_pkmap_nr);
+
+	pax_open_kernel();
 	set_pte_at(&init_mm, vaddr,
 		   &(pkmap_page_table[last_pkmap_nr]), mk_pte(page, kmap_prot));
-
+	pax_close_kernel();
 	pkmap_count[last_pkmap_nr] = 1;
 	set_page_address(page, (void *)vaddr);
 
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index e2f7f5aa..a4510d4 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2318,7 +2318,12 @@ static void collapse_huge_page(struct mm_struct *mm,
 		pte_unmap(pte);
 		spin_lock(&mm->page_table_lock);
 		BUG_ON(!pmd_none(*pmd));
-		set_pmd_at(mm, address, pmd, _pmd);
+		/*
+		 * We can only use set_pmd_at when establishing
+		 * hugepmds and never for establishing regular pmds that
+		 * points to regular pagetables. Use pmd_populate for that
+		 */
+		pmd_populate(mm, pmd, pmd_pgtable(_pmd));
 		spin_unlock(&mm->page_table_lock);
 		anon_vma_unlock_write(vma->anon_vma);
 		goto out;
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 1a12f5b..a85b8fc 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2005,15 +2005,17 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
 	struct hstate *h = &default_hstate;
 	unsigned long tmp;
 	int ret;
+	ctl_table_no_const hugetlb_table;
 
 	tmp = h->max_huge_pages;
 
 	if (write && h->order >= MAX_ORDER)
 		return -EINVAL;
 
-	table->data = &tmp;
-	table->maxlen = sizeof(unsigned long);
-	ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
+	hugetlb_table = *table;
+	hugetlb_table.data = &tmp;
+	hugetlb_table.maxlen = sizeof(unsigned long);
+	ret = proc_doulongvec_minmax(&hugetlb_table, write, buffer, length, ppos);
 	if (ret)
 		goto out;
 
@@ -2070,15 +2072,17 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
 	struct hstate *h = &default_hstate;
 	unsigned long tmp;
 	int ret;
+	ctl_table_no_const hugetlb_table;
 
 	tmp = h->nr_overcommit_huge_pages;
 
 	if (write && h->order >= MAX_ORDER)
 		return -EINVAL;
 
-	table->data = &tmp;
-	table->maxlen = sizeof(unsigned long);
-	ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
+	hugetlb_table = *table;
+	hugetlb_table.data = &tmp;
+	hugetlb_table.maxlen = sizeof(unsigned long);
+	ret = proc_doulongvec_minmax(&hugetlb_table, write, buffer, length, ppos);
 	if (ret)
 		goto out;
 
@@ -2512,6 +2516,27 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
 	return 1;
 }
 
+#ifdef CONFIG_PAX_SEGMEXEC
+static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	struct vm_area_struct *vma_m;
+	unsigned long address_m;
+	pte_t *ptep_m;
+
+	vma_m = pax_find_mirror_vma(vma);
+	if (!vma_m)
+		return;
+
+	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
+	address_m = address + SEGMEXEC_TASK_SIZE;
+	ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK);
+	get_page(page_m);
+	hugepage_add_anon_rmap(page_m, vma_m, address_m);
+	set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0));
+}
+#endif
+
 /*
  * Hugetlb_cow() should be called with page lock of the original hugepage held.
  * Called with hugetlb_instantiation_mutex held and pte_page locked so we
@@ -2630,6 +2655,11 @@ retry_avoidcopy:
 				make_huge_pte(vma, new_page, 1));
 		page_remove_rmap(old_page);
 		hugepage_add_new_anon_rmap(new_page, vma, address);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		pax_mirror_huge_pte(vma, address, new_page);
+#endif
+
 		/* Make the old page be freed below */
 		new_page = old_page;
 	}
@@ -2788,6 +2818,10 @@ retry:
 				&& (vma->vm_flags & VM_SHARED)));
 	set_huge_pte_at(mm, address, ptep, new_pte);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_huge_pte(vma, address, page);
+#endif
+
 	if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
 		/* Optimization, do the COW without a second fault */
 		ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page);
@@ -2817,6 +2851,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	static DEFINE_MUTEX(hugetlb_instantiation_mutex);
 	struct hstate *h = hstate_vma(vma);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m;
+#endif
+
 	address &= huge_page_mask(h);
 
 	ptep = huge_pte_offset(mm, address);
@@ -2830,6 +2868,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 				VM_FAULT_SET_HINDEX(hstate_index(h));
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma_m = pax_find_mirror_vma(vma);
+	if (vma_m) {
+		unsigned long address_m;
+
+		if (vma->vm_start > vma_m->vm_start) {
+			address_m = address;
+			address -= SEGMEXEC_TASK_SIZE;
+			vma = vma_m;
+			h = hstate_vma(vma);
+		} else
+			address_m = address + SEGMEXEC_TASK_SIZE;
+
+		if (!huge_pte_alloc(mm, address_m, huge_page_size(h)))
+			return VM_FAULT_OOM;
+		address_m &= HPAGE_MASK;
+		unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL);
+	}
+#endif
+
 	ptep = huge_pte_alloc(mm, address, huge_page_size(h));
 	if (!ptep)
 		return VM_FAULT_OOM;
diff --git a/mm/internal.h b/mm/internal.h
index 8562de0..7fdfe92 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -100,6 +100,7 @@ extern pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address);
  * in mm/page_alloc.c
  */
 extern void __free_pages_bootmem(struct page *page, unsigned int order);
+extern void free_compound_page(struct page *page);
 extern void prep_compound_page(struct page *page, unsigned long order);
 #ifdef CONFIG_MEMORY_FAILURE
 extern bool is_free_buddy_page(struct page *page);
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index c8d7f31..2dbeffd 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -363,7 +363,7 @@ static void print_unreferenced(struct seq_file *seq,
 
 	for (i = 0; i < object->trace_len; i++) {
 		void *ptr = (void *)object->trace[i];
-		seq_printf(seq, "    [<%p>] %pS\n", ptr, ptr);
+		seq_printf(seq, "    [<%pP>] %pA\n", ptr, ptr);
 	}
 }
 
@@ -1851,7 +1851,7 @@ static int __init kmemleak_late_init(void)
 		return -ENOMEM;
 	}
 
-	dentry = debugfs_create_file("kmemleak", S_IRUGO, NULL, NULL,
+	dentry = debugfs_create_file("kmemleak", S_IRUSR, NULL, NULL,
 				     &kmemleak_fops);
 	if (!dentry)
 		pr_warning("Failed to create the debugfs kmemleak file\n");
diff --git a/mm/maccess.c b/mm/maccess.c
index d53adf9..03a24bf 100644
--- a/mm/maccess.c
+++ b/mm/maccess.c
@@ -26,7 +26,7 @@ long __probe_kernel_read(void *dst, const void *src, size_t size)
 	set_fs(KERNEL_DS);
 	pagefault_disable();
 	ret = __copy_from_user_inatomic(dst,
-			(__force const void __user *)src, size);
+			(const void __force_user *)src, size);
 	pagefault_enable();
 	set_fs(old_fs);
 
@@ -53,7 +53,7 @@ long __probe_kernel_write(void *dst, const void *src, size_t size)
 
 	set_fs(KERNEL_DS);
 	pagefault_disable();
-	ret = __copy_to_user_inatomic((__force void __user *)dst, src, size);
+	ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
 	pagefault_enable();
 	set_fs(old_fs);
 
diff --git a/mm/madvise.c b/mm/madvise.c
index c58c94b..86ec14e 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -51,6 +51,10 @@ static long madvise_behavior(struct vm_area_struct * vma,
 	pgoff_t pgoff;
 	unsigned long new_flags = vma->vm_flags;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m;
+#endif
+
 	switch (behavior) {
 	case MADV_NORMAL:
 		new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
@@ -126,6 +130,13 @@ success:
 	/*
 	 * vm_flags is protected by the mmap_sem held in write mode.
 	 */
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma_m = pax_find_mirror_vma(vma);
+	if (vma_m)
+		vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT);
+#endif
+
 	vma->vm_flags = new_flags;
 
 out:
@@ -274,6 +285,11 @@ static long madvise_dontneed(struct vm_area_struct * vma,
 			     struct vm_area_struct ** prev,
 			     unsigned long start, unsigned long end)
 {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m;
+#endif
+
 	*prev = vma;
 	if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
 		return -EINVAL;
@@ -286,6 +302,21 @@ static long madvise_dontneed(struct vm_area_struct * vma,
 		zap_page_range(vma, start, end - start, &details);
 	} else
 		zap_page_range(vma, start, end - start, NULL);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma_m = pax_find_mirror_vma(vma);
+	if (vma_m) {
+		if (unlikely(vma->vm_flags & VM_NONLINEAR)) {
+			struct zap_details details = {
+				.nonlinear_vma = vma_m,
+				.last_index = ULONG_MAX,
+			};
+			zap_page_range(vma, start + SEGMEXEC_TASK_SIZE, end - start, &details);
+		} else
+			zap_page_range(vma, start + SEGMEXEC_TASK_SIZE, end - start, NULL);
+	}
+#endif
+
 	return 0;
 }
 
@@ -491,6 +522,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
 	if (end < start)
 		goto out;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
+		if (end > SEGMEXEC_TASK_SIZE)
+			goto out;
+	} else
+#endif
+
+	if (end > TASK_SIZE)
+		goto out;
+
 	error = 0;
 	if (end == start)
 		goto out;
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index df0694c..bc95539 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0;
 
 int sysctl_memory_failure_recovery __read_mostly = 1;
 
-atomic_long_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
+atomic_long_unchecked_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
 
 #if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE)
 
@@ -202,7 +202,7 @@ static int kill_proc(struct task_struct *t, unsigned long addr, int trapno,
 		pfn, t->comm, t->pid);
 	si.si_signo = SIGBUS;
 	si.si_errno = 0;
-	si.si_addr = (void *)addr;
+	si.si_addr = (void __user *)addr;
 #ifdef __ARCH_SI_TRAPNO
 	si.si_trapno = trapno;
 #endif
@@ -760,7 +760,7 @@ static struct page_state {
 	unsigned long res;
 	char *msg;
 	int (*action)(struct page *p, unsigned long pfn);
-} error_states[] = {
+} __do_const error_states[] = {
 	{ reserved,	reserved,	"reserved kernel",	me_kernel },
 	/*
 	 * free pages are specially detected outside this table:
@@ -1051,7 +1051,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
 		nr_pages = 1 << compound_order(hpage);
 	else /* normal page or thp */
 		nr_pages = 1;
-	atomic_long_add(nr_pages, &num_poisoned_pages);
+	atomic_long_add_unchecked(nr_pages, &num_poisoned_pages);
 
 	/*
 	 * We need/can do nothing about count=0 pages.
@@ -1081,7 +1081,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
 			if (!PageHWPoison(hpage)
 			    || (hwpoison_filter(p) && TestClearPageHWPoison(p))
 			    || (p != hpage && TestSetPageHWPoison(hpage))) {
-				atomic_long_sub(nr_pages, &num_poisoned_pages);
+				atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
 				return 0;
 			}
 			set_page_hwpoison_huge_page(hpage);
@@ -1148,7 +1148,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
 	}
 	if (hwpoison_filter(p)) {
 		if (TestClearPageHWPoison(p))
-			atomic_long_sub(nr_pages, &num_poisoned_pages);
+			atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
 		unlock_page(hpage);
 		put_page(hpage);
 		return 0;
@@ -1350,7 +1350,7 @@ int unpoison_memory(unsigned long pfn)
 			return 0;
 		}
 		if (TestClearPageHWPoison(p))
-			atomic_long_sub(nr_pages, &num_poisoned_pages);
+			atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
 		pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn);
 		return 0;
 	}
@@ -1364,7 +1364,7 @@ int unpoison_memory(unsigned long pfn)
 	 */
 	if (TestClearPageHWPoison(page)) {
 		pr_info("MCE: Software-unpoisoned page %#lx\n", pfn);
-		atomic_long_sub(nr_pages, &num_poisoned_pages);
+		atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
 		freeit = 1;
 		if (PageHuge(page))
 			clear_page_hwpoison_huge_page(page);
@@ -1491,7 +1491,7 @@ static int soft_offline_huge_page(struct page *page, int flags)
 	} else {
 		set_page_hwpoison_huge_page(hpage);
 		dequeue_hwpoisoned_huge_page(hpage);
-		atomic_long_add(1 << compound_trans_order(hpage),
+		atomic_long_add_unchecked(1 << compound_trans_order(hpage),
 				&num_poisoned_pages);
 	}
 	/* keep elevated page count for bad page */
@@ -1552,11 +1552,11 @@ int soft_offline_page(struct page *page, int flags)
 		if (PageHuge(page)) {
 			set_page_hwpoison_huge_page(hpage);
 			dequeue_hwpoisoned_huge_page(hpage);
-			atomic_long_add(1 << compound_trans_order(hpage),
+			atomic_long_add_unchecked(1 << compound_trans_order(hpage),
 					&num_poisoned_pages);
 		} else {
 			SetPageHWPoison(page);
-			atomic_long_inc(&num_poisoned_pages);
+			atomic_long_inc_unchecked(&num_poisoned_pages);
 		}
 	}
 	/* keep elevated page count for bad page */
@@ -1596,7 +1596,7 @@ static int __soft_offline_page(struct page *page, int flags)
 		put_page(page);
 		pr_info("soft_offline: %#lx: invalidated\n", pfn);
 		SetPageHWPoison(page);
-		atomic_long_inc(&num_poisoned_pages);
+		atomic_long_inc_unchecked(&num_poisoned_pages);
 		return 0;
 	}
 
@@ -1626,7 +1626,7 @@ static int __soft_offline_page(struct page *page, int flags)
 				ret = -EIO;
 		} else {
 			SetPageHWPoison(page);
-			atomic_long_inc(&num_poisoned_pages);
+			atomic_long_inc_unchecked(&num_poisoned_pages);
 		}
 	} else {
 		pr_info("soft offline: %#lx: isolation failed: %d, page count %d, type %lx\n",
diff --git a/mm/memory.c b/mm/memory.c
index ba94dec..08ffe0d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -438,6 +438,7 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
 		free_pte_range(tlb, pmd, addr);
 	} while (pmd++, addr = next, addr != end);
 
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_PER_CPU_PGD)
 	start &= PUD_MASK;
 	if (start < floor)
 		return;
@@ -452,6 +453,8 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
 	pmd = pmd_offset(pud, start);
 	pud_clear(pud);
 	pmd_free_tlb(tlb, pmd, start);
+#endif
+
 }
 
 static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
@@ -471,6 +474,7 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
 		free_pmd_range(tlb, pud, addr, next, floor, ceiling);
 	} while (pud++, addr = next, addr != end);
 
+#if !defined(CONFIG_X86_64) || !defined(CONFIG_PAX_PER_CPU_PGD)
 	start &= PGDIR_MASK;
 	if (start < floor)
 		return;
@@ -485,6 +489,8 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
 	pud = pud_offset(pgd, start);
 	pgd_clear(pgd);
 	pud_free_tlb(tlb, pud, start);
+#endif
+
 }
 
 /*
@@ -1644,12 +1650,6 @@ no_page_table:
 	return page;
 }
 
-static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
-{
-	return stack_guard_page_start(vma, addr) ||
-	       stack_guard_page_end(vma, addr+PAGE_SIZE);
-}
-
 /**
  * __get_user_pages() - pin user pages in memory
  * @tsk:	task_struct of target task
@@ -1736,10 +1736,10 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 
 	i = 0;
 
-	do {
+	while (nr_pages) {
 		struct vm_area_struct *vma;
 
-		vma = find_extend_vma(mm, start);
+		vma = find_vma(mm, start);
 		if (!vma && in_gate_area(mm, start)) {
 			unsigned long pg = start & PAGE_MASK;
 			pgd_t *pgd;
@@ -1788,7 +1788,7 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 			goto next_page;
 		}
 
-		if (!vma ||
+		if (!vma || start < vma->vm_start ||
 		    (vma->vm_flags & (VM_IO | VM_PFNMAP)) ||
 		    !(vm_flags & vma->vm_flags))
 			return i ? : -EFAULT;
@@ -1817,11 +1817,6 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 				int ret;
 				unsigned int fault_flags = 0;
 
-				/* For mlock, just skip the stack guard page. */
-				if (foll_flags & FOLL_MLOCK) {
-					if (stack_guard_page(vma, start))
-						goto next_page;
-				}
 				if (foll_flags & FOLL_WRITE)
 					fault_flags |= FAULT_FLAG_WRITE;
 				if (nonblocking)
@@ -1901,7 +1896,7 @@ next_page:
 			start += page_increm * PAGE_SIZE;
 			nr_pages -= page_increm;
 		} while (nr_pages && start < vma->vm_end);
-	} while (nr_pages);
+	}
 	return i;
 }
 EXPORT_SYMBOL(__get_user_pages);
@@ -2108,6 +2103,10 @@ static int insert_page(struct vm_area_struct *vma, unsigned long addr,
 	page_add_file_rmap(page);
 	set_pte_at(mm, addr, pte, mk_pte(page, prot));
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_file_pte(vma, addr, page, ptl);
+#endif
+
 	retval = 0;
 	pte_unmap_unlock(pte, ptl);
 	return retval;
@@ -2152,9 +2151,21 @@ int vm_insert_page(struct vm_area_struct *vma, unsigned long addr,
 	if (!page_count(page))
 		return -EINVAL;
 	if (!(vma->vm_flags & VM_MIXEDMAP)) {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		struct vm_area_struct *vma_m;
+#endif
+
 		BUG_ON(down_read_trylock(&vma->vm_mm->mmap_sem));
 		BUG_ON(vma->vm_flags & VM_PFNMAP);
 		vma->vm_flags |= VM_MIXEDMAP;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		vma_m = pax_find_mirror_vma(vma);
+		if (vma_m)
+			vma_m->vm_flags |= VM_MIXEDMAP;
+#endif
+
 	}
 	return insert_page(vma, addr, page, vma->vm_page_prot);
 }
@@ -2237,6 +2248,7 @@ int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
 			unsigned long pfn)
 {
 	BUG_ON(!(vma->vm_flags & VM_MIXEDMAP));
+	BUG_ON(vma->vm_mirror);
 
 	if (addr < vma->vm_start || addr >= vma->vm_end)
 		return -EFAULT;
@@ -2484,7 +2496,9 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud,
 
 	BUG_ON(pud_huge(*pud));
 
-	pmd = pmd_alloc(mm, pud, addr);
+	pmd = (mm == &init_mm) ?
+		pmd_alloc_kernel(mm, pud, addr) :
+		pmd_alloc(mm, pud, addr);
 	if (!pmd)
 		return -ENOMEM;
 	do {
@@ -2504,7 +2518,9 @@ static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd,
 	unsigned long next;
 	int err;
 
-	pud = pud_alloc(mm, pgd, addr);
+	pud = (mm == &init_mm) ?
+		pud_alloc_kernel(mm, pgd, addr) :
+		pud_alloc(mm, pgd, addr);
 	if (!pud)
 		return -ENOMEM;
 	do {
@@ -2592,6 +2608,186 @@ static inline void cow_user_page(struct page *dst, struct page *src, unsigned lo
 		copy_user_highpage(dst, src, va, vma);
 }
 
+#ifdef CONFIG_PAX_SEGMEXEC
+static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	spinlock_t *ptl;
+	pte_t *pte, entry;
+
+	pte = pte_offset_map_lock(mm, pmd, address, &ptl);
+	entry = *pte;
+	if (!pte_present(entry)) {
+		if (!pte_none(entry)) {
+			BUG_ON(pte_file(entry));
+			free_swap_and_cache(pte_to_swp_entry(entry));
+			pte_clear_not_present_full(mm, address, pte, 0);
+		}
+	} else {
+		struct page *page;
+
+		flush_cache_page(vma, address, pte_pfn(entry));
+		entry = ptep_clear_flush(vma, address, pte);
+		BUG_ON(pte_dirty(entry));
+		page = vm_normal_page(vma, address, entry);
+		if (page) {
+			update_hiwater_rss(mm);
+			if (PageAnon(page))
+				dec_mm_counter_fast(mm, MM_ANONPAGES);
+			else
+				dec_mm_counter_fast(mm, MM_FILEPAGES);
+			page_remove_rmap(page);
+			page_cache_release(page);
+		}
+	}
+	pte_unmap_unlock(pte, ptl);
+}
+
+/* PaX: if vma is mirrored, synchronize the mirror's PTE
+ *
+ * the ptl of the lower mapped page is held on entry and is not released on exit
+ * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc)
+ */
+static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	unsigned long address_m;
+	spinlock_t *ptl_m;
+	struct vm_area_struct *vma_m;
+	pmd_t *pmd_m;
+	pte_t *pte_m, entry_m;
+
+	BUG_ON(!page_m || !PageAnon(page_m));
+
+	vma_m = pax_find_mirror_vma(vma);
+	if (!vma_m)
+		return;
+
+	BUG_ON(!PageLocked(page_m));
+	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
+	address_m = address + SEGMEXEC_TASK_SIZE;
+	pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
+	pte_m = pte_offset_map(pmd_m, address_m);
+	ptl_m = pte_lockptr(mm, pmd_m);
+	if (ptl != ptl_m) {
+		spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
+		if (!pte_none(*pte_m))
+			goto out;
+	}
+
+	entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
+	page_cache_get(page_m);
+	page_add_anon_rmap(page_m, vma_m, address_m);
+	inc_mm_counter_fast(mm, MM_ANONPAGES);
+	set_pte_at(mm, address_m, pte_m, entry_m);
+	update_mmu_cache(vma_m, address_m, pte_m);
+out:
+	if (ptl != ptl_m)
+		spin_unlock(ptl_m);
+	pte_unmap(pte_m);
+	unlock_page(page_m);
+}
+
+void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	unsigned long address_m;
+	spinlock_t *ptl_m;
+	struct vm_area_struct *vma_m;
+	pmd_t *pmd_m;
+	pte_t *pte_m, entry_m;
+
+	BUG_ON(!page_m || PageAnon(page_m));
+
+	vma_m = pax_find_mirror_vma(vma);
+	if (!vma_m)
+		return;
+
+	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
+	address_m = address + SEGMEXEC_TASK_SIZE;
+	pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
+	pte_m = pte_offset_map(pmd_m, address_m);
+	ptl_m = pte_lockptr(mm, pmd_m);
+	if (ptl != ptl_m) {
+		spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
+		if (!pte_none(*pte_m))
+			goto out;
+	}
+
+	entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
+	page_cache_get(page_m);
+	page_add_file_rmap(page_m);
+	inc_mm_counter_fast(mm, MM_FILEPAGES);
+	set_pte_at(mm, address_m, pte_m, entry_m);
+	update_mmu_cache(vma_m, address_m, pte_m);
+out:
+	if (ptl != ptl_m)
+		spin_unlock(ptl_m);
+	pte_unmap(pte_m);
+}
+
+static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	unsigned long address_m;
+	spinlock_t *ptl_m;
+	struct vm_area_struct *vma_m;
+	pmd_t *pmd_m;
+	pte_t *pte_m, entry_m;
+
+	vma_m = pax_find_mirror_vma(vma);
+	if (!vma_m)
+		return;
+
+	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
+	address_m = address + SEGMEXEC_TASK_SIZE;
+	pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
+	pte_m = pte_offset_map(pmd_m, address_m);
+	ptl_m = pte_lockptr(mm, pmd_m);
+	if (ptl != ptl_m) {
+		spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
+		if (!pte_none(*pte_m))
+			goto out;
+	}
+
+	entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot);
+	set_pte_at(mm, address_m, pte_m, entry_m);
+out:
+	if (ptl != ptl_m)
+		spin_unlock(ptl_m);
+	pte_unmap(pte_m);
+}
+
+static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl)
+{
+	struct page *page_m;
+	pte_t entry;
+
+	if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC))
+		goto out;
+
+	entry = *pte;
+	page_m  = vm_normal_page(vma, address, entry);
+	if (!page_m)
+		pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl);
+	else if (PageAnon(page_m)) {
+		if (pax_find_mirror_vma(vma)) {
+			pte_unmap_unlock(pte, ptl);
+			lock_page(page_m);
+			pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl);
+			if (pte_same(entry, *pte))
+				pax_mirror_anon_pte(vma, address, page_m, ptl);
+			else
+				unlock_page(page_m);
+		}
+	} else
+		pax_mirror_file_pte(vma, address, page_m, ptl);
+
+out:
+	pte_unmap_unlock(pte, ptl);
+}
+#endif
+
 /*
  * This routine handles present pages, when users try to write
  * to a shared page. It is done by copying the page to a new address
@@ -2808,6 +3004,12 @@ gotten:
 	 */
 	page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
 	if (likely(pte_same(*page_table, orig_pte))) {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if (pax_find_mirror_vma(vma))
+			BUG_ON(!trylock_page(new_page));
+#endif
+
 		if (old_page) {
 			if (!PageAnon(old_page)) {
 				dec_mm_counter_fast(mm, MM_FILEPAGES);
@@ -2859,6 +3061,10 @@ gotten:
 			page_remove_rmap(old_page);
 		}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		pax_mirror_anon_pte(vma, address, new_page, ptl);
+#endif
+
 		/* Free the old page.. */
 		new_page = old_page;
 		ret |= VM_FAULT_WRITE;
@@ -3134,6 +3340,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	swap_free(entry);
 	if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
 		try_to_free_swap(page);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((flags & FAULT_FLAG_WRITE) || !pax_find_mirror_vma(vma))
+#endif
+
 	unlock_page(page);
 	if (page != swapcache) {
 		/*
@@ -3157,6 +3368,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
 
 	/* No need to invalidate - it was non-present before */
 	update_mmu_cache(vma, address, page_table);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_anon_pte(vma, address, page, ptl);
+#endif
+
 unlock:
 	pte_unmap_unlock(page_table, ptl);
 out:
@@ -3176,40 +3392,6 @@ out_release:
 }
 
 /*
- * This is like a special single-page "expand_{down|up}wards()",
- * except we must first make sure that 'address{-|+}PAGE_SIZE'
- * doesn't hit another vma.
- */
-static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
-{
-	address &= PAGE_MASK;
-	if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
-		struct vm_area_struct *prev = vma->vm_prev;
-
-		/*
-		 * Is there a mapping abutting this one below?
-		 *
-		 * That's only ok if it's the same stack mapping
-		 * that has gotten split..
-		 */
-		if (prev && prev->vm_end == address)
-			return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
-
-		expand_downwards(vma, address - PAGE_SIZE);
-	}
-	if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
-		struct vm_area_struct *next = vma->vm_next;
-
-		/* As VM_GROWSDOWN but s/below/above/ */
-		if (next && next->vm_start == address + PAGE_SIZE)
-			return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
-
-		expand_upwards(vma, address + PAGE_SIZE);
-	}
-	return 0;
-}
-
-/*
  * We enter with non-exclusive mmap_sem (to exclude vma changes,
  * but allow concurrent faults), and pte mapped but not yet locked.
  * We return with mmap_sem still held, but pte unmapped and unlocked.
@@ -3218,27 +3400,23 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		unsigned long address, pte_t *page_table, pmd_t *pmd,
 		unsigned int flags)
 {
-	struct page *page;
+	struct page *page = NULL;
 	spinlock_t *ptl;
 	pte_t entry;
 
-	pte_unmap(page_table);
-
-	/* Check if we need to add a guard page to the stack */
-	if (check_stack_guard_page(vma, address) < 0)
-		return VM_FAULT_SIGBUS;
-
-	/* Use the zero-page for reads */
 	if (!(flags & FAULT_FLAG_WRITE)) {
 		entry = pte_mkspecial(pfn_pte(my_zero_pfn(address),
 						vma->vm_page_prot));
-		page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
+		ptl = pte_lockptr(mm, pmd);
+		spin_lock(ptl);
 		if (!pte_none(*page_table))
 			goto unlock;
 		goto setpte;
 	}
 
 	/* Allocate our own private page. */
+	pte_unmap(page_table);
+
 	if (unlikely(anon_vma_prepare(vma)))
 		goto oom;
 	page = alloc_zeroed_user_highpage_movable(vma, address);
@@ -3257,6 +3435,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (!pte_none(*page_table))
 		goto release;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (pax_find_mirror_vma(vma))
+		BUG_ON(!trylock_page(page));
+#endif
+
 	inc_mm_counter_fast(mm, MM_ANONPAGES);
 	page_add_new_anon_rmap(page, vma, address);
 setpte:
@@ -3264,6 +3447,12 @@ setpte:
 
 	/* No need to invalidate - it was non-present before */
 	update_mmu_cache(vma, address, page_table);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (page)
+		pax_mirror_anon_pte(vma, address, page, ptl);
+#endif
+
 unlock:
 	pte_unmap_unlock(page_table, ptl);
 	return 0;
@@ -3407,6 +3596,12 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	 */
 	/* Only go through if we didn't race with anybody else... */
 	if (likely(pte_same(*page_table, orig_pte))) {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if (anon && pax_find_mirror_vma(vma))
+			BUG_ON(!trylock_page(page));
+#endif
+
 		flush_icache_page(vma, page);
 		entry = mk_pte(page, vma->vm_page_prot);
 		if (flags & FAULT_FLAG_WRITE)
@@ -3426,6 +3621,14 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 
 		/* no need to invalidate: a not-present page won't be cached */
 		update_mmu_cache(vma, address, page_table);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if (anon)
+			pax_mirror_anon_pte(vma, address, page, ptl);
+		else
+			pax_mirror_file_pte(vma, address, page, ptl);
+#endif
+
 	} else {
 		if (cow_page)
 			mem_cgroup_uncharge_page(cow_page);
@@ -3747,6 +3950,12 @@ int handle_pte_fault(struct mm_struct *mm,
 		if (flags & FAULT_FLAG_WRITE)
 			flush_tlb_fix_spurious_fault(vma, address);
 	}
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_pte(vma, address, pte, pmd, ptl);
+	return 0;
+#endif
+
 unlock:
 	pte_unmap_unlock(pte, ptl);
 	return 0;
@@ -3763,6 +3972,10 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	pmd_t *pmd;
 	pte_t *pte;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m;
+#endif
+
 	__set_current_state(TASK_RUNNING);
 
 	count_vm_event(PGFAULT);
@@ -3774,6 +3987,34 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (unlikely(is_vm_hugetlb_page(vma)))
 		return hugetlb_fault(mm, vma, address, flags);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma_m = pax_find_mirror_vma(vma);
+	if (vma_m) {
+		unsigned long address_m;
+		pgd_t *pgd_m;
+		pud_t *pud_m;
+		pmd_t *pmd_m;
+
+		if (vma->vm_start > vma_m->vm_start) {
+			address_m = address;
+			address -= SEGMEXEC_TASK_SIZE;
+			vma = vma_m;
+		} else
+			address_m = address + SEGMEXEC_TASK_SIZE;
+
+		pgd_m = pgd_offset(mm, address_m);
+		pud_m = pud_alloc(mm, pgd_m, address_m);
+		if (!pud_m)
+			return VM_FAULT_OOM;
+		pmd_m = pmd_alloc(mm, pud_m, address_m);
+		if (!pmd_m)
+			return VM_FAULT_OOM;
+		if (!pmd_present(*pmd_m) && __pte_alloc(mm, vma_m, pmd_m, address_m))
+			return VM_FAULT_OOM;
+		pax_unmap_mirror_pte(vma_m, address_m, pmd_m);
+	}
+#endif
+
 retry:
 	pgd = pgd_offset(mm, address);
 	pud = pud_alloc(mm, pgd, address);
@@ -3872,6 +4113,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
 	spin_unlock(&mm->page_table_lock);
 	return 0;
 }
+
+int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
+{
+	pud_t *new = pud_alloc_one(mm, address);
+	if (!new)
+		return -ENOMEM;
+
+	smp_wmb(); /* See comment in __pte_alloc */
+
+	spin_lock(&mm->page_table_lock);
+	if (pgd_present(*pgd))		/* Another has populated it */
+		pud_free(mm, new);
+	else
+		pgd_populate_kernel(mm, pgd, new);
+	spin_unlock(&mm->page_table_lock);
+	return 0;
+}
 #endif /* __PAGETABLE_PUD_FOLDED */
 
 #ifndef __PAGETABLE_PMD_FOLDED
@@ -3902,6 +4160,30 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
 	spin_unlock(&mm->page_table_lock);
 	return 0;
 }
+
+int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
+{
+	pmd_t *new = pmd_alloc_one(mm, address);
+	if (!new)
+		return -ENOMEM;
+
+	smp_wmb(); /* See comment in __pte_alloc */
+
+	spin_lock(&mm->page_table_lock);
+#ifndef __ARCH_HAS_4LEVEL_HACK
+	if (pud_present(*pud))		/* Another has populated it */
+		pmd_free(mm, new);
+	else
+		pud_populate_kernel(mm, pud, new);
+#else
+	if (pgd_present(*pud))		/* Another has populated it */
+		pmd_free(mm, new);
+	else
+		pgd_populate_kernel(mm, pud, new);
+#endif /* __ARCH_HAS_4LEVEL_HACK */
+	spin_unlock(&mm->page_table_lock);
+	return 0;
+}
 #endif /* __PAGETABLE_PMD_FOLDED */
 
 #if !defined(__HAVE_ARCH_GATE_AREA)
@@ -3915,7 +4197,7 @@ static int __init gate_vma_init(void)
 	gate_vma.vm_start = FIXADDR_USER_START;
 	gate_vma.vm_end = FIXADDR_USER_END;
 	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
-	gate_vma.vm_page_prot = __P101;
+	gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
 
 	return 0;
 }
@@ -4049,8 +4331,8 @@ out:
 	return ret;
 }
 
-int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
-			void *buf, int len, int write)
+ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
+			void *buf, size_t len, int write)
 {
 	resource_size_t phys_addr;
 	unsigned long prot = 0;
@@ -4075,8 +4357,8 @@ int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
  * Access another process' address space as given in mm.  If non-NULL, use the
  * given task for page fault accounting.
  */
-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
-		unsigned long addr, void *buf, int len, int write)
+static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+		unsigned long addr, void *buf, size_t len, int write)
 {
 	struct vm_area_struct *vma;
 	void *old_buf = buf;
@@ -4084,7 +4366,7 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
 	down_read(&mm->mmap_sem);
 	/* ignore errors, just check how much was successfully transferred */
 	while (len) {
-		int bytes, ret, offset;
+		ssize_t bytes, ret, offset;
 		void *maddr;
 		struct page *page = NULL;
 
@@ -4143,8 +4425,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
  *
  * The caller must hold a reference on @mm.
  */
-int access_remote_vm(struct mm_struct *mm, unsigned long addr,
-		void *buf, int len, int write)
+ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
+		void *buf, size_t len, int write)
 {
 	return __access_remote_vm(NULL, mm, addr, buf, len, write);
 }
@@ -4154,11 +4436,11 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
  * Source/target buffer must be kernel space,
  * Do not walk the page table directly, use get_user_pages
  */
-int access_process_vm(struct task_struct *tsk, unsigned long addr,
-		void *buf, int len, int write)
+ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr,
+		void *buf, size_t len, int write)
 {
 	struct mm_struct *mm;
-	int ret;
+	ssize_t ret;
 
 	mm = get_task_mm(tsk);
 	if (!mm)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 7431001..0f8344e 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -708,6 +708,10 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
 	unsigned long vmstart;
 	unsigned long vmend;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m;
+#endif
+
 	vma = find_vma(mm, start);
 	if (!vma || vma->vm_start > start)
 		return -EFAULT;
@@ -744,9 +748,20 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
 			if (err)
 				goto out;
 		}
+
 		err = vma_replace_policy(vma, new_pol);
 		if (err)
 			goto out;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		vma_m = pax_find_mirror_vma(vma);
+		if (vma_m) {
+			err = vma_replace_policy(vma_m, new_pol);
+			if (err)
+				goto out;
+		}
+#endif
+
 	}
 
  out:
@@ -1202,6 +1217,17 @@ static long do_mbind(unsigned long start, unsigned long len,
 
 	if (end < start)
 		return -EINVAL;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC) {
+		if (end > SEGMEXEC_TASK_SIZE)
+			return -EINVAL;
+	} else
+#endif
+
+	if (end > TASK_SIZE)
+		return -EINVAL;
+
 	if (end == start)
 		return 0;
 
@@ -1430,8 +1456,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
 	 */
 	tcred = __task_cred(task);
 	if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
-	    !uid_eq(cred->uid,  tcred->suid) && !uid_eq(cred->uid,  tcred->uid) &&
-	    !capable(CAP_SYS_NICE)) {
+	    !uid_eq(cred->uid,  tcred->suid) && !capable(CAP_SYS_NICE)) {
 		rcu_read_unlock();
 		err = -EPERM;
 		goto out_put;
@@ -1462,6 +1487,15 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
 		goto out;
 	}
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (mm != current->mm &&
+	    (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) {
+		mmput(mm);
+		err = -EPERM;
+		goto out;
+	}
+#endif
+
 	err = do_migrate_pages(mm, old, new,
 		capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
 
diff --git a/mm/migrate.c b/mm/migrate.c
index 3bbaf5d..299b0e9 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1382,8 +1382,7 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, unsigned long, nr_pages,
 	 */
 	tcred = __task_cred(task);
 	if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
-	    !uid_eq(cred->uid,  tcred->suid) && !uid_eq(cred->uid,  tcred->uid) &&
-	    !capable(CAP_SYS_NICE)) {
+	    !uid_eq(cred->uid,  tcred->suid) && !capable(CAP_SYS_NICE)) {
 		rcu_read_unlock();
 		err = -EPERM;
 		goto out;
diff --git a/mm/mlock.c b/mm/mlock.c
index 79b7cf7..9944291 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -13,6 +13,7 @@
 #include <linux/pagemap.h>
 #include <linux/mempolicy.h>
 #include <linux/syscalls.h>
+#include <linux/security.h>
 #include <linux/sched.h>
 #include <linux/export.h>
 #include <linux/rmap.h>
@@ -334,7 +335,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
 {
 	unsigned long nstart, end, tmp;
 	struct vm_area_struct * vma, * prev;
-	int error;
+	int error = 0;
 
 	VM_BUG_ON(start & ~PAGE_MASK);
 	VM_BUG_ON(len != PAGE_ALIGN(len));
@@ -343,6 +344,9 @@ static int do_mlock(unsigned long start, size_t len, int on)
 		return -EINVAL;
 	if (end == start)
 		return 0;
+	if (end > TASK_SIZE)
+		return -EINVAL;
+
 	vma = find_vma(current->mm, start);
 	if (!vma || vma->vm_start > start)
 		return -ENOMEM;
@@ -354,6 +358,11 @@ static int do_mlock(unsigned long start, size_t len, int on)
 	for (nstart = start ; ; ) {
 		vm_flags_t newflags;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
+			break;
+#endif
+
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
 
 		newflags = vma->vm_flags & ~VM_LOCKED;
@@ -466,6 +475,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 	lock_limit >>= PAGE_SHIFT;
 
 	/* check against resource limits */
+	gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1);
 	if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
 		error = do_mlock(start, len, 1);
 	up_write(&current->mm->mmap_sem);
@@ -500,6 +510,11 @@ static int do_mlockall(int flags)
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
+			break;
+#endif
+
 		newflags = vma->vm_flags & ~VM_LOCKED;
 		if (flags & MCL_CURRENT)
 			newflags |= VM_LOCKED;
@@ -532,6 +547,7 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	lock_limit >>= PAGE_SHIFT;
 
 	ret = -ENOMEM;
+	gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm << PAGE_SHIFT, 1);
 	if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
 	    capable(CAP_IPC_LOCK))
 		ret = do_mlockall(flags);
diff --git a/mm/mmap.c b/mm/mmap.c
index 0dceed8..671951c 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -33,6 +33,7 @@
 #include <linux/uprobes.h>
 #include <linux/rbtree_augmented.h>
 #include <linux/sched/sysctl.h>
+#include <linux/random.h>
 
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
@@ -49,6 +50,16 @@
 #define arch_rebalance_pgtables(addr, len)		(addr)
 #endif
 
+static inline void verify_mm_writelocked(struct mm_struct *mm)
+{
+#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX)
+	if (unlikely(down_read_trylock(&mm->mmap_sem))) {
+		up_read(&mm->mmap_sem);
+		BUG();
+	}
+#endif
+}
+
 static void unmap_region(struct mm_struct *mm,
 		struct vm_area_struct *vma, struct vm_area_struct *prev,
 		unsigned long start, unsigned long end);
@@ -68,22 +79,32 @@ static void unmap_region(struct mm_struct *mm,
  *		x: (no) no	x: (no) yes	x: (no) yes	x: (yes) yes
  *
  */
-pgprot_t protection_map[16] = {
+pgprot_t protection_map[16] __read_only = {
 	__P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
 	__S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
 };
 
-pgprot_t vm_get_page_prot(unsigned long vm_flags)
+pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
 {
-	return __pgprot(pgprot_val(protection_map[vm_flags &
+	pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags &
 				(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
 			pgprot_val(arch_vm_get_page_prot(vm_flags)));
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
+	if (!(__supported_pte_mask & _PAGE_NX) &&
+	    (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC &&
+	    (vm_flags & (VM_READ | VM_WRITE)))
+		prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot)))));
+#endif
+
+	return prot;
 }
 EXPORT_SYMBOL(vm_get_page_prot);
 
 int sysctl_overcommit_memory __read_mostly = OVERCOMMIT_GUESS;  /* heuristic overcommit */
 int sysctl_overcommit_ratio __read_mostly = 50;	/* default is 50% */
 int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT;
+unsigned long sysctl_heap_stack_gap __read_mostly = 64*1024;
 /*
  * Make sure vm_committed_as in one cacheline and not cacheline shared with
  * other variables. It can be updated by several CPUs frequently.
@@ -239,6 +260,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
 	struct vm_area_struct *next = vma->vm_next;
 
 	might_sleep();
+	BUG_ON(vma->vm_mirror);
 	if (vma->vm_ops && vma->vm_ops->close)
 		vma->vm_ops->close(vma);
 	if (vma->vm_file)
@@ -283,6 +305,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
 	 * not page aligned -Ram Gupta
 	 */
 	rlim = rlimit(RLIMIT_DATA);
+	gr_learn_resource(current, RLIMIT_DATA, (brk - mm->start_brk) + (mm->end_data - mm->start_data), 1);
 	if (rlim < RLIM_INFINITY && (brk - mm->start_brk) +
 			(mm->end_data - mm->start_data) > rlim)
 		goto out;
@@ -897,6 +920,12 @@ static int
 can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
 	struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
 {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE)
+		return 0;
+#endif
+
 	if (is_mergeable_vma(vma, file, vm_flags) &&
 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
 		if (vma->vm_pgoff == vm_pgoff)
@@ -916,6 +945,12 @@ static int
 can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
 	struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
 {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE)
+		return 0;
+#endif
+
 	if (is_mergeable_vma(vma, file, vm_flags) &&
 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
 		pgoff_t vm_pglen;
@@ -958,13 +993,20 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
 struct vm_area_struct *vma_merge(struct mm_struct *mm,
 			struct vm_area_struct *prev, unsigned long addr,
 			unsigned long end, unsigned long vm_flags,
-		     	struct anon_vma *anon_vma, struct file *file,
+			struct anon_vma *anon_vma, struct file *file,
 			pgoff_t pgoff, struct mempolicy *policy)
 {
 	pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
 	struct vm_area_struct *area, *next;
 	int err;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE;
+	struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL;
+
+	BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end);
+#endif
+
 	/*
 	 * We later require that vma->vm_flags == vm_flags,
 	 * so this tests vma->vm_flags & VM_SPECIAL, too.
@@ -980,6 +1022,15 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
 	if (next && next->vm_end == end)		/* cases 6, 7, 8 */
 		next = next->vm_next;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (prev)
+		prev_m = pax_find_mirror_vma(prev);
+	if (area)
+		area_m = pax_find_mirror_vma(area);
+	if (next)
+		next_m = pax_find_mirror_vma(next);
+#endif
+
 	/*
 	 * Can it merge with the predecessor?
 	 */
@@ -999,9 +1050,24 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
 							/* cases 1, 6 */
 			err = vma_adjust(prev, prev->vm_start,
 				next->vm_end, prev->vm_pgoff, NULL);
-		} else					/* cases 2, 5, 7 */
+
+#ifdef CONFIG_PAX_SEGMEXEC
+			if (!err && prev_m)
+				err = vma_adjust(prev_m, prev_m->vm_start,
+					next_m->vm_end, prev_m->vm_pgoff, NULL);
+#endif
+
+		} else {				/* cases 2, 5, 7 */
 			err = vma_adjust(prev, prev->vm_start,
 				end, prev->vm_pgoff, NULL);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+			if (!err && prev_m)
+				err = vma_adjust(prev_m, prev_m->vm_start,
+						end_m, prev_m->vm_pgoff, NULL);
+#endif
+
+		}
 		if (err)
 			return NULL;
 		khugepaged_enter_vma_merge(prev);
@@ -1015,12 +1081,27 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
  			mpol_equal(policy, vma_policy(next)) &&
 			can_vma_merge_before(next, vm_flags,
 					anon_vma, file, pgoff+pglen)) {
-		if (prev && addr < prev->vm_end)	/* case 4 */
+		if (prev && addr < prev->vm_end) {	/* case 4 */
 			err = vma_adjust(prev, prev->vm_start,
 				addr, prev->vm_pgoff, NULL);
-		else					/* cases 3, 8 */
+
+#ifdef CONFIG_PAX_SEGMEXEC
+			if (!err && prev_m)
+				err = vma_adjust(prev_m, prev_m->vm_start,
+						addr_m, prev_m->vm_pgoff, NULL);
+#endif
+
+		} else {				/* cases 3, 8 */
 			err = vma_adjust(area, addr, next->vm_end,
 				next->vm_pgoff - pglen, NULL);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+			if (!err && area_m)
+				err = vma_adjust(area_m, addr_m, next_m->vm_end,
+						next_m->vm_pgoff - pglen, NULL);
+#endif
+
+		}
 		if (err)
 			return NULL;
 		khugepaged_enter_vma_merge(area);
@@ -1129,8 +1210,10 @@ none:
 void vm_stat_account(struct mm_struct *mm, unsigned long flags,
 						struct file *file, long pages)
 {
-	const unsigned long stack_flags
-		= VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN);
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
+#endif
 
 	mm->total_vm += pages;
 
@@ -1138,7 +1221,7 @@ void vm_stat_account(struct mm_struct *mm, unsigned long flags,
 		mm->shared_vm += pages;
 		if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC)
 			mm->exec_vm += pages;
-	} else if (flags & stack_flags)
+	} else if (flags & (VM_GROWSUP|VM_GROWSDOWN))
 		mm->stack_vm += pages;
 }
 #endif /* CONFIG_PROC_FS */
@@ -1177,7 +1260,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	 * (the exception is when the underlying filesystem is noexec
 	 *  mounted, in which case we dont add PROT_EXEC.)
 	 */
-	if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
+	if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
 		if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC)))
 			prot |= PROT_EXEC;
 
@@ -1203,7 +1286,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	/* Obtain the address to map to. we verify (or select) it and ensure
 	 * that it represents a valid section of the address space.
 	 */
-	addr = get_unmapped_area(file, addr, len, pgoff, flags);
+	addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0));
 	if (addr & ~PAGE_MASK)
 		return addr;
 
@@ -1214,6 +1297,36 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
 
+#ifdef CONFIG_PAX_MPROTECT
+	if (mm->pax_flags & MF_PAX_MPROTECT) {
+#ifndef CONFIG_PAX_MPROTECT_COMPAT
+		if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) {
+			gr_log_rwxmmap(file);
+
+#ifdef CONFIG_PAX_EMUPLT
+			vm_flags &= ~VM_EXEC;
+#else
+			return -EPERM;
+#endif
+
+		}
+
+		if (!(vm_flags & VM_EXEC))
+			vm_flags &= ~VM_MAYEXEC;
+#else
+		if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
+			vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
+#endif
+		else
+			vm_flags &= ~VM_MAYWRITE;
+	}
+#endif
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
+	if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file)
+		vm_flags &= ~VM_PAGEEXEC;
+#endif
+
 	if (flags & MAP_LOCKED)
 		if (!can_do_mlock())
 			return -EPERM;
@@ -1225,6 +1338,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 		locked += mm->locked_vm;
 		lock_limit = rlimit(RLIMIT_MEMLOCK);
 		lock_limit >>= PAGE_SHIFT;
+		gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
 		if (locked > lock_limit && !capable(CAP_IPC_LOCK))
 			return -EAGAIN;
 	}
@@ -1305,6 +1419,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 			vm_flags |= VM_NORESERVE;
 	}
 
+	if (!gr_acl_handle_mmap(file, prot))
+		return -EACCES;
+	
 	addr = mmap_region(file, addr, len, vm_flags, pgoff);
 	if (!IS_ERR_VALUE(addr) &&
 	    ((vm_flags & VM_LOCKED) ||
@@ -1396,7 +1513,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma)
 	vm_flags_t vm_flags = vma->vm_flags;
 
 	/* If it was private or non-writable, the write bit is already clear */
-	if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED)))
+	if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED))
 		return 0;
 
 	/* The backer wishes to know when pages are first written to? */
@@ -1444,16 +1561,30 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 	unsigned long charged = 0;
 	struct inode *inode =  file ? file_inode(file) : NULL;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m = NULL;
+#endif
+
+	/*
+	 * mm->mmap_sem is required to protect against another thread
+	 * changing the mappings in case we sleep.
+	 */
+	verify_mm_writelocked(mm);
+
 	/* Clear old maps */
 	error = -ENOMEM;
-munmap_back:
 	if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent)) {
 		if (do_munmap(mm, addr, len))
 			return -ENOMEM;
-		goto munmap_back;
+		BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
 	}
 
 	/* Check against address space limit. */
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (vm_flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
+#endif
+
 	if (!may_expand_vm(mm, len >> PAGE_SHIFT))
 		return -ENOMEM;
 
@@ -1485,6 +1616,16 @@ munmap_back:
 		goto unacct_error;
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) {
+		vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+		if (!vma_m) {
+			error = -ENOMEM;
+			goto free_vma;
+		}
+	}
+#endif
+
 	vma->vm_mm = mm;
 	vma->vm_start = addr;
 	vma->vm_end = addr + len;
@@ -1509,6 +1650,13 @@ munmap_back:
 		if (error)
 			goto unmap_and_free_vma;
 
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
+		if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) {
+			vma->vm_flags |= VM_PAGEEXEC;
+			vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+		}
+#endif
+
 		/* Can addr have changed??
 		 *
 		 * Answer: Yes, several device drivers can do it in their
@@ -1547,6 +1695,11 @@ munmap_back:
 	vma_link(mm, vma, prev, rb_link, rb_parent);
 	file = vma->vm_file;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma_m)
+		BUG_ON(pax_mirror_vma(vma_m, vma));
+#endif
+
 	/* Once vma denies write, undo our temporary denial count */
 	if (correct_wcount)
 		atomic_inc(&inode->i_writecount);
@@ -1554,6 +1707,7 @@ out:
 	perf_event_mmap(vma);
 
 	vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
+	track_exec_limit(mm, addr, addr + len, vm_flags);
 	if (vm_flags & VM_LOCKED) {
 		if (!((vm_flags & VM_SPECIAL) || is_vm_hugetlb_page(vma) ||
 					vma == get_gate_vma(current->mm)))
@@ -1577,6 +1731,12 @@ unmap_and_free_vma:
 	unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
 	charged = 0;
 free_vma:
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma_m)
+		kmem_cache_free(vm_area_cachep, vma_m);
+#endif
+
 	kmem_cache_free(vm_area_cachep, vma);
 unacct_error:
 	if (charged)
@@ -1584,6 +1744,62 @@ unacct_error:
 	return error;
 }
 
+#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
+unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
+{
+	if ((mm->pax_flags & MF_PAX_RANDMMAP) && !filp && (flags & MAP_STACK))
+		return (random32() & 0xFF) << PAGE_SHIFT;
+
+	return 0;
+}
+#endif
+
+bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset)
+{
+	if (!vma) {
+#ifdef CONFIG_STACK_GROWSUP
+		if (addr > sysctl_heap_stack_gap)
+			vma = find_vma(current->mm, addr - sysctl_heap_stack_gap);
+		else
+			vma = find_vma(current->mm, 0);
+		if (vma && (vma->vm_flags & VM_GROWSUP))
+			return false;
+#endif
+		return true;
+	}
+
+	if (addr + len > vma->vm_start)
+		return false;
+
+	if (vma->vm_flags & VM_GROWSDOWN)
+		return sysctl_heap_stack_gap <= vma->vm_start - addr - len;
+#ifdef CONFIG_STACK_GROWSUP
+	else if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP))
+		return addr - vma->vm_prev->vm_end <= sysctl_heap_stack_gap;
+#endif
+	else if (offset)
+		return offset <= vma->vm_start - addr - len;
+
+	return true;
+}
+
+unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset)
+{
+	if (vma->vm_start < len)
+		return -ENOMEM;
+
+	if (!(vma->vm_flags & VM_GROWSDOWN)) {
+		if (offset <= vma->vm_start - len)
+			return vma->vm_start - len - offset;
+		else
+			return -ENOMEM;
+	}
+
+	if (sysctl_heap_stack_gap <= vma->vm_start - len)
+		return vma->vm_start - len - sysctl_heap_stack_gap;
+	return -ENOMEM;
+}
+
 unsigned long unmapped_area(struct vm_unmapped_area_info *info)
 {
 	/*
@@ -1803,6 +2019,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 
 	if (len > TASK_SIZE)
 		return -ENOMEM;
@@ -1810,29 +2027,45 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	if (flags & MAP_FIXED)
 		return addr;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
 	info.flags = 0;
 	info.length = len;
 	info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP)
+		info.low_limit += mm->delta_mmap;
+#endif
+
 	info.high_limit = TASK_SIZE;
 	info.align_mask = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 #endif	
 
 void arch_unmap_area(struct mm_struct *mm, unsigned long addr)
 {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr)
+		return;
+#endif
+
 	/*
 	 * Is this a new hole at the lowest possible address?
 	 */
-	if (addr >= TASK_UNMAPPED_BASE && addr < mm->free_area_cache)
+	if (addr >= mm->mmap_base && addr < mm->free_area_cache)
 		mm->free_area_cache = addr;
 }
 
@@ -1850,6 +2083,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 
 	/* requested length too big for entire address space */
 	if (len > TASK_SIZE)
@@ -1858,12 +2092,15 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (flags & MAP_FIXED)
 		return addr;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* requesting a specific address */
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -1872,6 +2109,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.low_limit = PAGE_SIZE;
 	info.high_limit = mm->mmap_base;
 	info.align_mask = 0;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	/*
@@ -1884,6 +2122,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = TASK_SIZE;
 		addr = vm_unmapped_area(&info);
 	}
@@ -1894,6 +2138,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 
 void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr)
 {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr)
+		return;
+#endif
+
 	/*
 	 * Is this a new hole at the highest possible address?
 	 */
@@ -1901,8 +2151,10 @@ void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr)
 		mm->free_area_cache = addr;
 
 	/* dont allow allocations above current base */
-	if (mm->free_area_cache > mm->mmap_base)
+	if (mm->free_area_cache > mm->mmap_base) {
 		mm->free_area_cache = mm->mmap_base;
+		mm->cached_hole_size = ~0UL;
+	}
 }
 
 unsigned long
@@ -2001,6 +2253,28 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr,
 	return vma;
 }
 
+#ifdef CONFIG_PAX_SEGMEXEC
+struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma)
+{
+	struct vm_area_struct *vma_m;
+
+	BUG_ON(!vma || vma->vm_start >= vma->vm_end);
+	if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) {
+		BUG_ON(vma->vm_mirror);
+		return NULL;
+	}
+	BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end);
+	vma_m = vma->vm_mirror;
+	BUG_ON(!vma_m || vma_m->vm_mirror != vma);
+	BUG_ON(vma->vm_file != vma_m->vm_file);
+	BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start);
+	BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff);
+	BUG_ON(vma->anon_vma != vma_m->anon_vma && vma->anon_vma->root != vma_m->anon_vma->root);
+	BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED));
+	return vma_m;
+}
+#endif
+
 /*
  * Verify that the stack growth is acceptable and
  * update accounting. This is shared with both the
@@ -2017,6 +2291,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
 		return -ENOMEM;
 
 	/* Stack limit test */
+	gr_learn_resource(current, RLIMIT_STACK, size, 1);
 	if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
 		return -ENOMEM;
 
@@ -2027,6 +2302,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
 		locked = mm->locked_vm + grow;
 		limit = ACCESS_ONCE(rlim[RLIMIT_MEMLOCK].rlim_cur);
 		limit >>= PAGE_SHIFT;
+		gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
 		if (locked > limit && !capable(CAP_IPC_LOCK))
 			return -ENOMEM;
 	}
@@ -2056,37 +2332,48 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
  * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
  * vma is the last one with address > vma->vm_end.  Have to extend vma.
  */
+#ifndef CONFIG_IA64
+static
+#endif
 int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 {
 	int error;
+	bool locknext;
 
 	if (!(vma->vm_flags & VM_GROWSUP))
 		return -EFAULT;
 
+	/* Also guard against wrapping around to address 0. */
+	if (address < PAGE_ALIGN(address+1))
+		address = PAGE_ALIGN(address+1);
+	else
+		return -ENOMEM;
+
 	/*
 	 * We must make sure the anon_vma is allocated
 	 * so that the anon_vma locking is not a noop.
 	 */
 	if (unlikely(anon_vma_prepare(vma)))
 		return -ENOMEM;
+	locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN);
+	if (locknext && anon_vma_prepare(vma->vm_next))
+		return -ENOMEM;
 	vma_lock_anon_vma(vma);
+	if (locknext)
+		vma_lock_anon_vma(vma->vm_next);
 
 	/*
 	 * vma->vm_start/vm_end cannot change under us because the caller
 	 * is required to hold the mmap_sem in read mode.  We need the
-	 * anon_vma lock to serialize against concurrent expand_stacks.
-	 * Also guard against wrapping around to address 0.
+	 * anon_vma locks to serialize against concurrent expand_stacks
+	 * and expand_upwards.
 	 */
-	if (address < PAGE_ALIGN(address+4))
-		address = PAGE_ALIGN(address+4);
-	else {
-		vma_unlock_anon_vma(vma);
-		return -ENOMEM;
-	}
 	error = 0;
 
 	/* Somebody else might have raced and expanded it already */
-	if (address > vma->vm_end) {
+	if (vma->vm_next && (vma->vm_next->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && vma->vm_next->vm_start - address < sysctl_heap_stack_gap)
+		error = -ENOMEM;
+	else if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) {
 		unsigned long size, grow;
 
 		size = address - vma->vm_start;
@@ -2121,6 +2408,8 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 			}
 		}
 	}
+	if (locknext)
+		vma_unlock_anon_vma(vma->vm_next);
 	vma_unlock_anon_vma(vma);
 	khugepaged_enter_vma_merge(vma);
 	validate_mm(vma->vm_mm);
@@ -2135,6 +2424,8 @@ int expand_downwards(struct vm_area_struct *vma,
 				   unsigned long address)
 {
 	int error;
+	bool lockprev = false;
+	struct vm_area_struct *prev;
 
 	/*
 	 * We must make sure the anon_vma is allocated
@@ -2148,6 +2439,15 @@ int expand_downwards(struct vm_area_struct *vma,
 	if (error)
 		return error;
 
+	prev = vma->vm_prev;
+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
+	lockprev = prev && (prev->vm_flags & VM_GROWSUP);
+#endif
+	if (lockprev && anon_vma_prepare(prev))
+		return -ENOMEM;
+	if (lockprev)
+		vma_lock_anon_vma(prev);
+
 	vma_lock_anon_vma(vma);
 
 	/*
@@ -2157,9 +2457,17 @@ int expand_downwards(struct vm_area_struct *vma,
 	 */
 
 	/* Somebody else might have raced and expanded it already */
-	if (address < vma->vm_start) {
+	if (prev && (prev->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && address - prev->vm_end < sysctl_heap_stack_gap)
+		error = -ENOMEM;
+	else if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) {
 		unsigned long size, grow;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		struct vm_area_struct *vma_m;
+
+		vma_m = pax_find_mirror_vma(vma);
+#endif
+
 		size = vma->vm_end - address;
 		grow = (vma->vm_start - address) >> PAGE_SHIFT;
 
@@ -2184,6 +2492,18 @@ int expand_downwards(struct vm_area_struct *vma,
 				vma->vm_pgoff -= grow;
 				anon_vma_interval_tree_post_update_vma(vma);
 				vma_gap_update(vma);
+				track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+				if (vma_m) {
+					anon_vma_interval_tree_pre_update_vma(vma_m);
+					vma_m->vm_start -= grow << PAGE_SHIFT;
+					vma_m->vm_pgoff -= grow;
+					anon_vma_interval_tree_post_update_vma(vma_m);
+					vma_gap_update(vma_m);
+				}
+#endif
+
 				spin_unlock(&vma->vm_mm->page_table_lock);
 
 				perf_event_mmap(vma);
@@ -2288,6 +2608,13 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
 	do {
 		long nrpages = vma_pages(vma);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) {
+			vma = remove_vma(vma);
+			continue;
+		}
+#endif
+
 		if (vma->vm_flags & VM_ACCOUNT)
 			nr_accounted += nrpages;
 		vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
@@ -2333,6 +2660,16 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
 	insertion_point = (prev ? &prev->vm_next : &mm->mmap);
 	vma->vm_prev = NULL;
 	do {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if (vma->vm_mirror) {
+			BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma);
+			vma->vm_mirror->vm_mirror = NULL;
+			vma->vm_mirror->vm_flags &= ~VM_EXEC;
+			vma->vm_mirror = NULL;
+		}
+#endif
+
 		vma_rb_erase(vma, &mm->mm_rb);
 		mm->map_count--;
 		tail_vma = vma;
@@ -2364,14 +2701,33 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
 	struct vm_area_struct *new;
 	int err = -ENOMEM;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m, *new_m = NULL;
+	unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE;
+#endif
+
 	if (is_vm_hugetlb_page(vma) && (addr &
 					~(huge_page_mask(hstate_vma(vma)))))
 		return -EINVAL;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma_m = pax_find_mirror_vma(vma);
+#endif
+
 	new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
 	if (!new)
 		goto out_err;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma_m) {
+		new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+		if (!new_m) {
+			kmem_cache_free(vm_area_cachep, new);
+			goto out_err;
+		}
+	}
+#endif
+
 	/* most fields are the same, copy all, and then fixup */
 	*new = *vma;
 
@@ -2384,6 +2740,22 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
 		new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma_m) {
+		*new_m = *vma_m;
+		INIT_LIST_HEAD(&new_m->anon_vma_chain);
+		new_m->vm_mirror = new;
+		new->vm_mirror = new_m;
+
+		if (new_below)
+			new_m->vm_end = addr_m;
+		else {
+			new_m->vm_start = addr_m;
+			new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT);
+		}
+	}
+#endif
+
 	pol = mpol_dup(vma_policy(vma));
 	if (IS_ERR(pol)) {
 		err = PTR_ERR(pol);
@@ -2406,6 +2778,36 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
 	else
 		err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (!err && vma_m) {
+		if (anon_vma_clone(new_m, vma_m))
+			goto out_free_mpol;
+
+		mpol_get(pol);
+		vma_set_policy(new_m, pol);
+
+		if (new_m->vm_file)
+			get_file(new_m->vm_file);
+
+		if (new_m->vm_ops && new_m->vm_ops->open)
+			new_m->vm_ops->open(new_m);
+
+		if (new_below)
+			err = vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff +
+				((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m);
+		else
+			err = vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m);
+
+		if (err) {
+			if (new_m->vm_ops && new_m->vm_ops->close)
+				new_m->vm_ops->close(new_m);
+			if (new_m->vm_file)
+				fput(new_m->vm_file);
+			mpol_put(pol);
+		}
+	}
+#endif
+
 	/* Success. */
 	if (!err)
 		return 0;
@@ -2415,10 +2817,18 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
 		new->vm_ops->close(new);
 	if (new->vm_file)
 		fput(new->vm_file);
-	unlink_anon_vmas(new);
  out_free_mpol:
 	mpol_put(pol);
  out_free_vma:
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (new_m) {
+		unlink_anon_vmas(new_m);
+		kmem_cache_free(vm_area_cachep, new_m);
+	}
+#endif
+
+	unlink_anon_vmas(new);
 	kmem_cache_free(vm_area_cachep, new);
  out_err:
 	return err;
@@ -2431,6 +2841,15 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
 int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
 	      unsigned long addr, int new_below)
 {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC) {
+		BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE);
+		if (mm->map_count >= sysctl_max_map_count-1)
+			return -ENOMEM;
+	} else
+#endif
+
 	if (mm->map_count >= sysctl_max_map_count)
 		return -ENOMEM;
 
@@ -2442,11 +2861,30 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
  * work.  This now handles partial unmappings.
  * Jeremy Fitzhardinge <jeremy@goop.org>
  */
+#ifdef CONFIG_PAX_SEGMEXEC
 int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
 {
+	int ret = __do_munmap(mm, start, len);
+	if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC))
+		return ret;
+
+	return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len);
+}
+
+int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
+#else
+int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
+#endif
+{
 	unsigned long end;
 	struct vm_area_struct *vma, *prev, *last;
 
+	/*
+	 * mm->mmap_sem is required to protect against another thread
+	 * changing the mappings in case we sleep.
+	 */
+	verify_mm_writelocked(mm);
+
 	if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
 		return -EINVAL;
 
@@ -2521,6 +2959,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
 	/* Fix up all other VM information */
 	remove_vma_list(mm, vma);
 
+	track_exec_limit(mm, start, end, 0UL);
+
 	return 0;
 }
 
@@ -2529,6 +2969,13 @@ int vm_munmap(unsigned long start, size_t len)
 	int ret;
 	struct mm_struct *mm = current->mm;
 
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) &&
+	    (len > SEGMEXEC_TASK_SIZE || start > SEGMEXEC_TASK_SIZE-len))
+		return -EINVAL;
+#endif
+
 	down_write(&mm->mmap_sem);
 	ret = do_munmap(mm, start, len);
 	up_write(&mm->mmap_sem);
@@ -2542,16 +2989,6 @@ SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len)
 	return vm_munmap(addr, len);
 }
 
-static inline void verify_mm_writelocked(struct mm_struct *mm)
-{
-#ifdef CONFIG_DEBUG_VM
-	if (unlikely(down_read_trylock(&mm->mmap_sem))) {
-		WARN_ON(1);
-		up_read(&mm->mmap_sem);
-	}
-#endif
-}
-
 /*
  *  this is really a simplified "do_mmap".  it only handles
  *  anonymous maps.  eventually we may be able to do some
@@ -2565,6 +3002,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 	struct rb_node ** rb_link, * rb_parent;
 	pgoff_t pgoff = addr >> PAGE_SHIFT;
 	int error;
+	unsigned long charged;
 
 	len = PAGE_ALIGN(len);
 	if (!len)
@@ -2572,16 +3010,30 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 
 	flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
 
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+	if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
+		flags &= ~VM_EXEC;
+
+#ifdef CONFIG_PAX_MPROTECT
+		if (mm->pax_flags & MF_PAX_MPROTECT)
+			flags &= ~VM_MAYEXEC;
+#endif
+
+	}
+#endif
+
 	error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
 	if (error & ~PAGE_MASK)
 		return error;
 
+	charged = len >> PAGE_SHIFT;
+
 	/*
 	 * mlock MCL_FUTURE?
 	 */
 	if (mm->def_flags & VM_LOCKED) {
 		unsigned long locked, lock_limit;
-		locked = len >> PAGE_SHIFT;
+		locked = charged;
 		locked += mm->locked_vm;
 		lock_limit = rlimit(RLIMIT_MEMLOCK);
 		lock_limit >>= PAGE_SHIFT;
@@ -2598,21 +3050,20 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 	/*
 	 * Clear old maps.  this also does some error checking for us
 	 */
- munmap_back:
 	if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent)) {
 		if (do_munmap(mm, addr, len))
 			return -ENOMEM;
-		goto munmap_back;
+		BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
 	}
 
 	/* Check against address space limits *after* clearing old maps... */
-	if (!may_expand_vm(mm, len >> PAGE_SHIFT))
+	if (!may_expand_vm(mm, charged))
 		return -ENOMEM;
 
 	if (mm->map_count > sysctl_max_map_count)
 		return -ENOMEM;
 
-	if (security_vm_enough_memory_mm(mm, len >> PAGE_SHIFT))
+	if (security_vm_enough_memory_mm(mm, charged))
 		return -ENOMEM;
 
 	/* Can we just expand an old private anonymous mapping? */
@@ -2626,7 +3077,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 	 */
 	vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
 	if (!vma) {
-		vm_unacct_memory(len >> PAGE_SHIFT);
+		vm_unacct_memory(charged);
 		return -ENOMEM;
 	}
 
@@ -2640,9 +3091,10 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 	vma_link(mm, vma, prev, rb_link, rb_parent);
 out:
 	perf_event_mmap(vma);
-	mm->total_vm += len >> PAGE_SHIFT;
+	mm->total_vm += charged;
 	if (flags & VM_LOCKED)
-		mm->locked_vm += (len >> PAGE_SHIFT);
+		mm->locked_vm += charged;
+	track_exec_limit(mm, addr, addr + len, flags);
 	return addr;
 }
 
@@ -2704,6 +3156,7 @@ void exit_mmap(struct mm_struct *mm)
 	while (vma) {
 		if (vma->vm_flags & VM_ACCOUNT)
 			nr_accounted += vma_pages(vma);
+		vma->vm_mirror = NULL;
 		vma = remove_vma(vma);
 	}
 	vm_unacct_memory(nr_accounted);
@@ -2720,6 +3173,13 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
 	struct vm_area_struct *prev;
 	struct rb_node **rb_link, *rb_parent;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m = NULL;
+#endif
+
+	if (security_mmap_addr(vma->vm_start))
+		return -EPERM;
+
 	/*
 	 * The vm_pgoff of a purely anonymous vma should be irrelevant
 	 * until its first write fault, when page's anon_vma and index
@@ -2743,7 +3203,21 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
 	     security_vm_enough_memory_mm(mm, vma_pages(vma)))
 		return -ENOMEM;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) {
+		vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+		if (!vma_m)
+			return -ENOMEM;
+	}
+#endif
+
 	vma_link(mm, vma, prev, rb_link, rb_parent);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma_m)
+		BUG_ON(pax_mirror_vma(vma_m, vma));
+#endif
+
 	return 0;
 }
 
@@ -2763,6 +3237,8 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 	struct mempolicy *pol;
 	bool faulted_in_anon_vma = true;
 
+	BUG_ON(vma->vm_mirror);
+
 	/*
 	 * If anonymous vma has not yet been faulted, update new pgoff
 	 * to match new location, to increase its chance of merging.
@@ -2829,6 +3305,39 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 	return NULL;
 }
 
+#ifdef CONFIG_PAX_SEGMEXEC
+long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma)
+{
+	struct vm_area_struct *prev_m;
+	struct rb_node **rb_link_m, *rb_parent_m;
+	struct mempolicy *pol_m;
+
+	BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC));
+	BUG_ON(vma->vm_mirror || vma_m->vm_mirror);
+	BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m)));
+	*vma_m = *vma;
+	INIT_LIST_HEAD(&vma_m->anon_vma_chain);
+	if (anon_vma_clone(vma_m, vma))
+		return -ENOMEM;
+	pol_m = vma_policy(vma_m);
+	mpol_get(pol_m);
+	vma_set_policy(vma_m, pol_m);
+	vma_m->vm_start += SEGMEXEC_TASK_SIZE;
+	vma_m->vm_end += SEGMEXEC_TASK_SIZE;
+	vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED);
+	vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags);
+	if (vma_m->vm_file)
+		get_file(vma_m->vm_file);
+	if (vma_m->vm_ops && vma_m->vm_ops->open)
+		vma_m->vm_ops->open(vma_m);
+	BUG_ON(find_vma_links(vma->vm_mm, vma_m->vm_start, vma_m->vm_end, &prev_m, &rb_link_m, &rb_parent_m));
+	vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m);
+	vma_m->vm_mirror = vma;
+	vma->vm_mirror = vma_m;
+	return 0;
+}
+#endif
+
 /*
  * Return true if the calling process may expand its vm space by the passed
  * number of pages
@@ -2840,6 +3349,7 @@ int may_expand_vm(struct mm_struct *mm, unsigned long npages)
 
 	lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT;
 
+	gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1);
 	if (cur + npages > lim)
 		return 0;
 	return 1;
@@ -2910,6 +3420,22 @@ int install_special_mapping(struct mm_struct *mm,
 	vma->vm_start = addr;
 	vma->vm_end = addr + len;
 
+#ifdef CONFIG_PAX_MPROTECT
+	if (mm->pax_flags & MF_PAX_MPROTECT) {
+#ifndef CONFIG_PAX_MPROTECT_COMPAT
+		if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC))
+			return -EPERM;
+		if (!(vm_flags & VM_EXEC))
+			vm_flags &= ~VM_MAYEXEC;
+#else
+		if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
+			vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
+#endif
+		else
+			vm_flags &= ~VM_MAYWRITE;
+	}
+#endif
+
 	vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND;
 	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
 
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index be04122..6725ff1 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -40,48 +40,44 @@ void __mmu_notifier_release(struct mm_struct *mm)
 	int id;
 
 	/*
-	 * srcu_read_lock() here will block synchronize_srcu() in
-	 * mmu_notifier_unregister() until all registered
-	 * ->release() callouts this function makes have
-	 * returned.
+	 * SRCU here will block mmu_notifier_unregister until
+	 * ->release returns.
 	 */
 	id = srcu_read_lock(&srcu);
+	hlist_for_each_entry_rcu(mn, &mm->mmu_notifier_mm->list, hlist)
+		/*
+		 * If ->release runs before mmu_notifier_unregister it must be
+		 * handled, as it's the only way for the driver to flush all
+		 * existing sptes and stop the driver from establishing any more
+		 * sptes before all the pages in the mm are freed.
+		 */
+		if (mn->ops->release)
+			mn->ops->release(mn, mm);
+	srcu_read_unlock(&srcu, id);
+
 	spin_lock(&mm->mmu_notifier_mm->lock);
 	while (unlikely(!hlist_empty(&mm->mmu_notifier_mm->list))) {
 		mn = hlist_entry(mm->mmu_notifier_mm->list.first,
 				 struct mmu_notifier,
 				 hlist);
-
 		/*
-		 * Unlink.  This will prevent mmu_notifier_unregister()
-		 * from also making the ->release() callout.
+		 * We arrived before mmu_notifier_unregister so
+		 * mmu_notifier_unregister will do nothing other than to wait
+		 * for ->release to finish and for mmu_notifier_unregister to
+		 * return.
 		 */
 		hlist_del_init_rcu(&mn->hlist);
-		spin_unlock(&mm->mmu_notifier_mm->lock);
-
-		/*
-		 * Clear sptes. (see 'release' description in mmu_notifier.h)
-		 */
-		if (mn->ops->release)
-			mn->ops->release(mn, mm);
-
-		spin_lock(&mm->mmu_notifier_mm->lock);
 	}
 	spin_unlock(&mm->mmu_notifier_mm->lock);
 
 	/*
-	 * All callouts to ->release() which we have done are complete.
-	 * Allow synchronize_srcu() in mmu_notifier_unregister() to complete
-	 */
-	srcu_read_unlock(&srcu, id);
-
-	/*
-	 * mmu_notifier_unregister() may have unlinked a notifier and may
-	 * still be calling out to it.	Additionally, other notifiers
-	 * may have been active via vmtruncate() et. al. Block here
-	 * to ensure that all notifier callouts for this mm have been
-	 * completed and the sptes are really cleaned up before returning
-	 * to exit_mmap().
+	 * synchronize_srcu here prevents mmu_notifier_release from returning to
+	 * exit_mmap (which would proceed with freeing all pages in the mm)
+	 * until the ->release method returns, if it was invoked by
+	 * mmu_notifier_unregister.
+	 *
+	 * The mmu_notifier_mm can't go away from under us because one mm_count
+	 * is held by exit_mmap.
 	 */
 	synchronize_srcu(&srcu);
 }
@@ -292,31 +288,34 @@ void mmu_notifier_unregister(struct mmu_notifier *mn, struct mm_struct *mm)
 {
 	BUG_ON(atomic_read(&mm->mm_count) <= 0);
 
-	spin_lock(&mm->mmu_notifier_mm->lock);
 	if (!hlist_unhashed(&mn->hlist)) {
+		/*
+		 * SRCU here will force exit_mmap to wait for ->release to
+		 * finish before freeing the pages.
+		 */
 		int id;
 
-		/*
-		 * Ensure we synchronize up with __mmu_notifier_release().
-		 */
 		id = srcu_read_lock(&srcu);
-
-		hlist_del_rcu(&mn->hlist);
-		spin_unlock(&mm->mmu_notifier_mm->lock);
-
-		if (mn->ops->release)
-			mn->ops->release(mn, mm);
-
 		/*
-		 * Allow __mmu_notifier_release() to complete.
+		 * exit_mmap will block in mmu_notifier_release to guarantee
+		 * that ->release is called before freeing the pages.
 		 */
+		if (mn->ops->release)
+			mn->ops->release(mn, mm);
 		srcu_read_unlock(&srcu, id);
-	} else
+
+		spin_lock(&mm->mmu_notifier_mm->lock);
+		/*
+		 * Can not use list_del_rcu() since __mmu_notifier_release
+		 * can delete it before we hold the lock.
+		 */
+		hlist_del_init_rcu(&mn->hlist);
 		spin_unlock(&mm->mmu_notifier_mm->lock);
+	}
 
 	/*
-	 * Wait for any running method to finish, including ->release() if it
-	 * was run by __mmu_notifier_release() instead of us.
+	 * Wait for any running method to finish, of course including
+	 * ->release if it was run by mmu_notifier_relase instead of us.
 	 */
 	synchronize_srcu(&srcu);
 
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 94722a4..07d9926 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -23,10 +23,18 @@
 #include <linux/mmu_notifier.h>
 #include <linux/migrate.h>
 #include <linux/perf_event.h>
+#include <linux/sched/sysctl.h>
+
+#ifdef CONFIG_PAX_MPROTECT
+#include <linux/elf.h>
+#include <linux/binfmts.h>
+#endif
+
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
+#include <asm/mmu_context.h>
 
 #ifndef pgprot_modify
 static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
@@ -233,6 +241,48 @@ unsigned long change_protection(struct vm_area_struct *vma, unsigned long start,
 	return pages;
 }
 
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+/* called while holding the mmap semaphor for writing except stack expansion */
+void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot)
+{
+	unsigned long oldlimit, newlimit = 0UL;
+
+	if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || (__supported_pte_mask & _PAGE_NX))
+		return;
+
+	spin_lock(&mm->page_table_lock);
+	oldlimit = mm->context.user_cs_limit;
+	if ((prot & VM_EXEC) && oldlimit < end)
+		/* USER_CS limit moved up */
+		newlimit = end;
+	else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end)
+		/* USER_CS limit moved down */
+		newlimit = start;
+
+	if (newlimit) {
+		mm->context.user_cs_limit = newlimit;
+
+#ifdef CONFIG_SMP
+		wmb();
+		cpus_clear(mm->context.cpu_user_cs_mask);
+		cpu_set(smp_processor_id(), mm->context.cpu_user_cs_mask);
+#endif
+
+		set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id());
+	}
+	spin_unlock(&mm->page_table_lock);
+	if (newlimit == end) {
+		struct vm_area_struct *vma = find_vma(mm, oldlimit);
+
+		for (; vma && vma->vm_start < end; vma = vma->vm_next)
+			if (is_vm_hugetlb_page(vma))
+				hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot);
+			else
+				change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma), 0);
+	}
+}
+#endif
+
 int
 mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 	unsigned long start, unsigned long end, unsigned long newflags)
@@ -245,11 +295,29 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 	int error;
 	int dirty_accountable = 0;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m = NULL;
+	unsigned long start_m, end_m;
+
+	start_m = start + SEGMEXEC_TASK_SIZE;
+	end_m = end + SEGMEXEC_TASK_SIZE;
+#endif
+
 	if (newflags == oldflags) {
 		*pprev = vma;
 		return 0;
 	}
 
+	if (newflags & (VM_READ | VM_WRITE | VM_EXEC)) {
+		struct vm_area_struct *prev = vma->vm_prev, *next = vma->vm_next;
+
+		if (next && (next->vm_flags & VM_GROWSDOWN) && sysctl_heap_stack_gap > next->vm_start - end)
+			return -ENOMEM;
+
+		if (prev && (prev->vm_flags & VM_GROWSUP) && sysctl_heap_stack_gap > start - prev->vm_end)
+			return -ENOMEM;
+	}
+
 	/*
 	 * If we make a private mapping writable we increase our commit;
 	 * but (without finer accounting) cannot reduce our commit if we
@@ -266,6 +334,42 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 		}
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) {
+		if (start != vma->vm_start) {
+			error = split_vma(mm, vma, start, 1);
+			if (error)
+				goto fail;
+			BUG_ON(!*pprev || (*pprev)->vm_next == vma);
+			*pprev = (*pprev)->vm_next;
+		}
+
+		if (end != vma->vm_end) {
+			error = split_vma(mm, vma, end, 0);
+			if (error)
+				goto fail;
+		}
+
+		if (pax_find_mirror_vma(vma)) {
+			error = __do_munmap(mm, start_m, end_m - start_m);
+			if (error)
+				goto fail;
+		} else {
+			vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+			if (!vma_m) {
+				error = -ENOMEM;
+				goto fail;
+			}
+			vma->vm_flags = newflags;
+			error = pax_mirror_vma(vma_m, vma);
+			if (error) {
+				vma->vm_flags = oldflags;
+				goto fail;
+			}
+		}
+	}
+#endif
+
 	/*
 	 * First try to merge with previous and/or next vma.
 	 */
@@ -296,9 +400,21 @@ success:
 	 * vm_flags and vm_page_prot are protected by the mmap_sem
 	 * held in write mode.
 	 */
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (newflags & VM_EXEC) && ((vma->vm_flags ^ newflags) & VM_READ))
+		pax_find_mirror_vma(vma)->vm_flags ^= VM_READ;
+#endif
+
 	vma->vm_flags = newflags;
+
+#ifdef CONFIG_PAX_MPROTECT
+	if (mm->binfmt && mm->binfmt->handle_mprotect)
+		mm->binfmt->handle_mprotect(vma, newflags);
+#endif
+
 	vma->vm_page_prot = pgprot_modify(vma->vm_page_prot,
-					  vm_get_page_prot(newflags));
+					  vm_get_page_prot(vma->vm_flags));
 
 	if (vma_wants_writenotify(vma)) {
 		vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED);
@@ -337,6 +453,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
 	end = start + len;
 	if (end <= start)
 		return -ENOMEM;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
+		if (end > SEGMEXEC_TASK_SIZE)
+			return -EINVAL;
+	} else
+#endif
+
+	if (end > TASK_SIZE)
+		return -EINVAL;
+
 	if (!arch_validate_prot(prot))
 		return -EINVAL;
 
@@ -344,7 +471,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
 	/*
 	 * Does the application expect PROT_READ to imply PROT_EXEC:
 	 */
-	if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
+	if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
 		prot |= PROT_EXEC;
 
 	vm_flags = calc_vm_prot_bits(prot);
@@ -376,6 +503,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
 	if (start > vma->vm_start)
 		prev = vma;
 
+#ifdef CONFIG_PAX_MPROTECT
+	if (current->mm->binfmt && current->mm->binfmt->handle_mprotect)
+		current->mm->binfmt->handle_mprotect(vma, vm_flags);
+#endif
+
 	for (nstart = start ; ; ) {
 		unsigned long newflags;
 
@@ -386,6 +518,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
 
 		/* newflags >> 4 shift VM_MAY% in place of VM_% */
 		if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) {
+			if (prot & (PROT_WRITE | PROT_EXEC))
+				gr_log_rwxmprotect(vma->vm_file);
+
+			error = -EACCES;
+			goto out;
+		}
+
+		if (!gr_acl_handle_mprotect(vma->vm_file, prot)) {
 			error = -EACCES;
 			goto out;
 		}
@@ -400,6 +540,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
 		error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
 		if (error)
 			goto out;
+
+		track_exec_limit(current->mm, nstart, tmp, vm_flags);
+
 		nstart = tmp;
 
 		if (nstart < prev->vm_end)
diff --git a/mm/mremap.c b/mm/mremap.c
index 463a257..c0c7a92 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -126,6 +126,12 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 			continue;
 		pte = ptep_get_and_clear(mm, old_addr, old_pte);
 		pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
+
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+		if (!(__supported_pte_mask & _PAGE_NX) && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC)
+			pte = pte_exprotect(pte);
+#endif
+
 		set_pte_at(mm, new_addr, new_pte, pte);
 	}
 
@@ -318,6 +324,11 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
 	if (is_vm_hugetlb_page(vma))
 		goto Einval;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (pax_find_mirror_vma(vma))
+		goto Einval;
+#endif
+
 	/* We can't remap across vm area boundaries */
 	if (old_len > vma->vm_end - addr)
 		goto Efault;
@@ -373,20 +384,25 @@ static unsigned long mremap_to(unsigned long addr, unsigned long old_len,
 	unsigned long ret = -EINVAL;
 	unsigned long charged = 0;
 	unsigned long map_flags;
+	unsigned long pax_task_size = TASK_SIZE;
 
 	if (new_addr & ~PAGE_MASK)
 		goto out;
 
-	if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len)
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	pax_task_size -= PAGE_SIZE;
+
+	if (new_len > TASK_SIZE || new_addr > pax_task_size - new_len)
 		goto out;
 
 	/* Check if the location we're moving into overlaps the
 	 * old location at all, and fail if it does.
 	 */
-	if ((new_addr <= addr) && (new_addr+new_len) > addr)
-		goto out;
-
-	if ((addr <= new_addr) && (addr+old_len) > new_addr)
+	if (addr + old_len > new_addr && new_addr + new_len > addr)
 		goto out;
 
 	ret = do_munmap(mm, new_addr, new_len);
@@ -455,6 +471,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 	unsigned long ret = -EINVAL;
 	unsigned long charged = 0;
 	bool locked = false;
+	unsigned long pax_task_size = TASK_SIZE;
 
 	down_write(&current->mm->mmap_sem);
 
@@ -475,6 +492,17 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 	if (!new_len)
 		goto out;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	pax_task_size -= PAGE_SIZE;
+
+	if (new_len > pax_task_size || addr > pax_task_size-new_len ||
+	    old_len > pax_task_size || addr > pax_task_size-old_len)
+		goto out;
+
 	if (flags & MREMAP_FIXED) {
 		if (flags & MREMAP_MAYMOVE)
 			ret = mremap_to(addr, old_len, new_addr, new_len,
@@ -524,6 +552,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 				new_addr = addr;
 			}
 			ret = addr;
+			track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags);
 			goto out;
 		}
 	}
@@ -547,7 +576,12 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 			goto out;
 		}
 
+		map_flags = vma->vm_flags;
 		ret = move_vma(vma, addr, old_len, new_len, new_addr, &locked);
+		if (!(ret & ~PAGE_MASK)) {
+			track_exec_limit(current->mm, addr, addr + old_len, 0UL);
+			track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags);
+		}
 	}
 out:
 	if (ret & ~PAGE_MASK)
diff --git a/mm/nommu.c b/mm/nommu.c
index e001768..9b52b30 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -63,7 +63,6 @@ int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */
 int sysctl_overcommit_ratio = 50; /* default is 50% */
 int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT;
 int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS;
-int heap_stack_gap = 0;
 
 atomic_long_t mmap_pages_allocated;
 
@@ -841,15 +840,6 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
 EXPORT_SYMBOL(find_vma);
 
 /*
- * find a VMA
- * - we don't extend stack VMAs under NOMMU conditions
- */
-struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
-{
-	return find_vma(mm, addr);
-}
-
-/*
  * expand a stack to a given address
  * - not supported under NOMMU conditions
  */
@@ -1560,6 +1550,7 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
 
 	/* most fields are the same, copy all, and then fixup */
 	*new = *vma;
+	INIT_LIST_HEAD(&new->anon_vma_chain);
 	*region = *vma->vm_region;
 	new->vm_region = region;
 
@@ -1992,8 +1983,8 @@ int generic_file_remap_pages(struct vm_area_struct *vma, unsigned long addr,
 }
 EXPORT_SYMBOL(generic_file_remap_pages);
 
-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
-		unsigned long addr, void *buf, int len, int write)
+static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+		unsigned long addr, void *buf, size_t len, int write)
 {
 	struct vm_area_struct *vma;
 
@@ -2034,8 +2025,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
  *
  * The caller must hold a reference on @mm.
  */
-int access_remote_vm(struct mm_struct *mm, unsigned long addr,
-		void *buf, int len, int write)
+ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
+		void *buf, size_t len, int write)
 {
 	return __access_remote_vm(NULL, mm, addr, buf, len, write);
 }
@@ -2044,7 +2035,7 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
  * Access another process' address space.
  * - source/target buffer must be kernel space
  */
-int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write)
+ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write)
 {
 	struct mm_struct *mm;
 
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index efe6814..64b4701 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -659,7 +659,7 @@ unsigned long bdi_dirty_limit(struct backing_dev_info *bdi, unsigned long dirty)
  *   card's bdi_dirty may rush to many times higher than bdi_setpoint.
  * - the bdi dirty thresh drops quickly due to change of JBOD workload
  */
-static unsigned long bdi_position_ratio(struct backing_dev_info *bdi,
+static unsigned long __intentional_overflow(-1) bdi_position_ratio(struct backing_dev_info *bdi,
 					unsigned long thresh,
 					unsigned long bg_thresh,
 					unsigned long dirty,
@@ -1634,7 +1634,7 @@ ratelimit_handler(struct notifier_block *self, unsigned long action,
 	}
 }
 
-static struct notifier_block __cpuinitdata ratelimit_nb = {
+static struct notifier_block ratelimit_nb = {
 	.notifier_call	= ratelimit_handler,
 	.next		= NULL,
 };
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8fcced7..ebcd481 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -59,6 +59,7 @@
 #include <linux/migrate.h>
 #include <linux/page-debug-flags.h>
 #include <linux/sched/rt.h>
+#include <linux/random.h>
 
 #include <asm/tlbflush.h>
 #include <asm/div64.h>
@@ -344,7 +345,7 @@ out:
  * This usage means that zero-order pages may not be compound.
  */
 
-static void free_compound_page(struct page *page)
+void free_compound_page(struct page *page)
 {
 	__free_pages_ok(page, compound_order(page));
 }
@@ -701,6 +702,10 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
 	int i;
 	int bad = 0;
 
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	unsigned long index = 1UL << order;
+#endif
+
 	trace_mm_page_free(page, order);
 	kmemcheck_free_shadow(page, order);
 
@@ -716,6 +721,12 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
 		debug_check_no_obj_freed(page_address(page),
 					   PAGE_SIZE << order);
 	}
+
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	for (; index; --index)
+		sanitize_highpage(page + index - 1);
+#endif
+
 	arch_free_page(page, order);
 	kernel_map_pages(page, 1 << order, 0);
 
@@ -738,6 +749,19 @@ static void __free_pages_ok(struct page *page, unsigned int order)
 	local_irq_restore(flags);
 }
 
+#ifdef CONFIG_PAX_LATENT_ENTROPY
+bool __meminitdata extra_latent_entropy;
+
+static int __init setup_pax_extra_latent_entropy(char *str)
+{
+	extra_latent_entropy = true;
+	return 0;
+}
+early_param("pax_extra_latent_entropy", setup_pax_extra_latent_entropy);
+
+volatile u64 latent_entropy;
+#endif
+
 /*
  * Read access to zone->managed_pages is safe because it's unsigned long,
  * but we still need to serialize writers. Currently all callers of
@@ -760,6 +784,19 @@ void __meminit __free_pages_bootmem(struct page *page, unsigned int order)
 		set_page_count(p, 0);
 	}
 
+#ifdef CONFIG_PAX_LATENT_ENTROPY
+	if (extra_latent_entropy && !PageHighMem(page) && page_to_pfn(page) < 0x100000) {
+		u64 hash = 0;
+		size_t index, end = PAGE_SIZE * nr_pages / sizeof hash;
+		const u64 *data = lowmem_page_address(page);
+
+		for (index = 0; index < end; index++)
+			hash ^= hash + data[index];
+		latent_entropy ^= hash;
+		add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
+	}
+#endif
+
 	page_zone(page)->managed_pages += 1 << order;
 	set_page_refcounted(page);
 	__free_pages(page, order);
@@ -869,8 +906,10 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags)
 	arch_alloc_page(page, order);
 	kernel_map_pages(page, 1 << order, 1);
 
+#ifndef CONFIG_PAX_MEMORY_SANITIZE
 	if (gfp_flags & __GFP_ZERO)
 		prep_zero_page(page, order, gfp_flags);
+#endif
 
 	if (order && (gfp_flags & __GFP_COMP))
 		prep_compound_page(page, order);
diff --git a/mm/page_io.c b/mm/page_io.c
index 6182870..4bba6a2 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -205,7 +205,7 @@ int swap_writepage(struct page *page, struct writeback_control *wbc)
 		struct file *swap_file = sis->swap_file;
 		struct address_space *mapping = swap_file->f_mapping;
 		struct iovec iov = {
-			.iov_base = kmap(page),
+			.iov_base = (void __force_user *)kmap(page),
 			.iov_len  = PAGE_SIZE,
 		};
 
diff --git a/mm/percpu.c b/mm/percpu.c
index 8c8e08f..73a5cda 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -122,7 +122,7 @@ static unsigned int pcpu_low_unit_cpu __read_mostly;
 static unsigned int pcpu_high_unit_cpu __read_mostly;
 
 /* the address of the first chunk which starts with the kernel static area */
-void *pcpu_base_addr __read_mostly;
+void *pcpu_base_addr __read_only;
 EXPORT_SYMBOL_GPL(pcpu_base_addr);
 
 static const int *pcpu_unit_map __read_mostly;		/* cpu -> unit */
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index fd26d04..0cea1b0 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -13,6 +13,7 @@
 #include <linux/uio.h>
 #include <linux/sched.h>
 #include <linux/highmem.h>
+#include <linux/security.h>
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/syscalls.h>
@@ -258,19 +259,19 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
 	size_t iov_l_curr_offset = 0;
 	ssize_t iov_len;
 
+	return -ENOSYS; // PaX: until properly audited
+
 	/*
 	 * Work out how many pages of struct pages we're going to need
 	 * when eventually calling get_user_pages
 	 */
 	for (i = 0; i < riovcnt; i++) {
 		iov_len = rvec[i].iov_len;
-		if (iov_len > 0) {
-			nr_pages_iov = ((unsigned long)rvec[i].iov_base
-					+ iov_len)
-				/ PAGE_SIZE - (unsigned long)rvec[i].iov_base
-				/ PAGE_SIZE + 1;
-			nr_pages = max(nr_pages, nr_pages_iov);
-		}
+		if (iov_len <= 0)
+			continue;
+		nr_pages_iov = ((unsigned long)rvec[i].iov_base + iov_len) / PAGE_SIZE -
+				(unsigned long)rvec[i].iov_base / PAGE_SIZE + 1;
+		nr_pages = max(nr_pages, nr_pages_iov);
 	}
 
 	if (nr_pages == 0)
@@ -298,6 +299,11 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
 		goto free_proc_pages;
 	}
 
+	if (gr_handle_ptrace(task, vm_write ? PTRACE_POKETEXT : PTRACE_ATTACH)) {
+		rc = -EPERM;
+		goto put_task_struct;
+	}
+
 	mm = mm_access(task, PTRACE_MODE_ATTACH);
 	if (!mm || IS_ERR(mm)) {
 		rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH;
diff --git a/mm/rmap.c b/mm/rmap.c
index 807c96b..0e05279 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -163,6 +163,10 @@ int anon_vma_prepare(struct vm_area_struct *vma)
 	struct anon_vma *anon_vma = vma->anon_vma;
 	struct anon_vma_chain *avc;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct anon_vma_chain *avc_m = NULL;
+#endif
+
 	might_sleep();
 	if (unlikely(!anon_vma)) {
 		struct mm_struct *mm = vma->vm_mm;
@@ -172,6 +176,12 @@ int anon_vma_prepare(struct vm_area_struct *vma)
 		if (!avc)
 			goto out_enomem;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		avc_m = anon_vma_chain_alloc(GFP_KERNEL);
+		if (!avc_m)
+			goto out_enomem_free_avc;
+#endif
+
 		anon_vma = find_mergeable_anon_vma(vma);
 		allocated = NULL;
 		if (!anon_vma) {
@@ -185,6 +195,18 @@ int anon_vma_prepare(struct vm_area_struct *vma)
 		/* page_table_lock to protect against threads */
 		spin_lock(&mm->page_table_lock);
 		if (likely(!vma->anon_vma)) {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+			struct vm_area_struct *vma_m = pax_find_mirror_vma(vma);
+
+			if (vma_m) {
+				BUG_ON(vma_m->anon_vma);
+				vma_m->anon_vma = anon_vma;
+				anon_vma_chain_link(vma_m, avc_m, anon_vma);
+				avc_m = NULL;
+			}
+#endif
+
 			vma->anon_vma = anon_vma;
 			anon_vma_chain_link(vma, avc, anon_vma);
 			allocated = NULL;
@@ -195,12 +217,24 @@ int anon_vma_prepare(struct vm_area_struct *vma)
 
 		if (unlikely(allocated))
 			put_anon_vma(allocated);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if (unlikely(avc_m))
+			anon_vma_chain_free(avc_m);
+#endif
+
 		if (unlikely(avc))
 			anon_vma_chain_free(avc);
 	}
 	return 0;
 
  out_enomem_free_avc:
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (avc_m)
+		anon_vma_chain_free(avc_m);
+#endif
+
 	anon_vma_chain_free(avc);
  out_enomem:
 	return -ENOMEM;
@@ -236,7 +270,7 @@ static inline void unlock_anon_vma_root(struct anon_vma *root)
  * Attach the anon_vmas from src to dst.
  * Returns 0 on success, -ENOMEM on failure.
  */
-int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
+int anon_vma_clone(struct vm_area_struct *dst, const struct vm_area_struct *src)
 {
 	struct anon_vma_chain *avc, *pavc;
 	struct anon_vma *root = NULL;
@@ -269,7 +303,7 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
  * the corresponding VMA in the parent process is attached to.
  * Returns 0 on success, non-zero on failure.
  */
-int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
+int anon_vma_fork(struct vm_area_struct *vma, const struct vm_area_struct *pvma)
 {
 	struct anon_vma_chain *avc;
 	struct anon_vma *anon_vma;
diff --git a/mm/shmem.c b/mm/shmem.c
index 1c44af7..cefe9a6 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -31,7 +31,7 @@
 #include <linux/export.h>
 #include <linux/swap.h>
 
-static struct vfsmount *shm_mnt;
+struct vfsmount *shm_mnt;
 
 #ifdef CONFIG_SHMEM
 /*
@@ -75,7 +75,7 @@ static struct vfsmount *shm_mnt;
 #define BOGO_DIRENT_SIZE 20
 
 /* Symlink up to this size is kmalloc'ed instead of using a swappable page */
-#define SHORT_SYMLINK_LEN 128
+#define SHORT_SYMLINK_LEN 64
 
 /*
  * shmem_fallocate and shmem_writepage communicate via inode->i_private
@@ -2201,6 +2201,11 @@ static const struct xattr_handler *shmem_xattr_handlers[] = {
 static int shmem_xattr_validate(const char *name)
 {
 	struct { const char *prefix; size_t len; } arr[] = {
+
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+		{ XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN},
+#endif
+
 		{ XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN },
 		{ XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN }
 	};
@@ -2256,6 +2261,15 @@ static int shmem_setxattr(struct dentry *dentry, const char *name,
 	if (err)
 		return err;
 
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+	if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) {
+		if (strcmp(name, XATTR_NAME_PAX_FLAGS))
+			return -EOPNOTSUPP;
+		if (size > 8)
+			return -EINVAL;
+	}
+#endif
+
 	return simple_xattr_set(&info->xattrs, name, value, size, flags);
 }
 
@@ -2568,8 +2582,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
 	int err = -ENOMEM;
 
 	/* Round up to L1_CACHE_BYTES to resist false sharing */
-	sbinfo = kzalloc(max((int)sizeof(struct shmem_sb_info),
-				L1_CACHE_BYTES), GFP_KERNEL);
+	sbinfo = kzalloc(max(sizeof(struct shmem_sb_info), L1_CACHE_BYTES), GFP_KERNEL);
 	if (!sbinfo)
 		return -ENOMEM;
 
diff --git a/mm/slab.c b/mm/slab.c
index 856e4a1..fafb820 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -306,7 +306,7 @@ struct kmem_list3 {
  * Need this for bootstrapping a per node allocator.
  */
 #define NUM_INIT_LISTS (3 * MAX_NUMNODES)
-static struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS];
+static struct kmem_list3 initkmem_list3[NUM_INIT_LISTS];
 #define	CACHE_CACHE 0
 #define	SIZE_AC MAX_NUMNODES
 #define	SIZE_L3 (2 * MAX_NUMNODES)
@@ -407,10 +407,10 @@ static void kmem_list3_init(struct kmem_list3 *parent)
 		if ((x)->max_freeable < i)				\
 			(x)->max_freeable = i;				\
 	} while (0)
-#define STATS_INC_ALLOCHIT(x)	atomic_inc(&(x)->allochit)
-#define STATS_INC_ALLOCMISS(x)	atomic_inc(&(x)->allocmiss)
-#define STATS_INC_FREEHIT(x)	atomic_inc(&(x)->freehit)
-#define STATS_INC_FREEMISS(x)	atomic_inc(&(x)->freemiss)
+#define STATS_INC_ALLOCHIT(x)	atomic_inc_unchecked(&(x)->allochit)
+#define STATS_INC_ALLOCMISS(x)	atomic_inc_unchecked(&(x)->allocmiss)
+#define STATS_INC_FREEHIT(x)	atomic_inc_unchecked(&(x)->freehit)
+#define STATS_INC_FREEMISS(x)	atomic_inc_unchecked(&(x)->freemiss)
 #else
 #define	STATS_INC_ACTIVE(x)	do { } while (0)
 #define	STATS_DEC_ACTIVE(x)	do { } while (0)
@@ -518,7 +518,7 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct slab *slab,
  *   reciprocal_divide(offset, cache->reciprocal_buffer_size)
  */
 static inline unsigned int obj_to_index(const struct kmem_cache *cache,
-					const struct slab *slab, void *obj)
+					const struct slab *slab, const void *obj)
 {
 	u32 offset = (obj - slab->s_mem);
 	return reciprocal_divide(offset, cache->reciprocal_buffer_size);
@@ -539,12 +539,13 @@ EXPORT_SYMBOL(malloc_sizes);
 struct cache_names {
 	char *name;
 	char *name_dma;
+	char *name_usercopy;
 };
 
 static struct cache_names __initdata cache_names[] = {
-#define CACHE(x) { .name = "size-" #x, .name_dma = "size-" #x "(DMA)" },
+#define CACHE(x) { .name = "size-" #x, .name_dma = "size-" #x "(DMA)", .name_usercopy = "size-" #x "(USERCOPY)" },
 #include <linux/kmalloc_sizes.h>
-	{NULL,}
+	{NULL}
 #undef CACHE
 };
 
@@ -729,6 +730,12 @@ static inline struct kmem_cache *__find_general_cachep(size_t size,
 	if (unlikely(gfpflags & GFP_DMA))
 		return csizep->cs_dmacachep;
 #endif
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	if (unlikely(gfpflags & GFP_USERCOPY))
+		return csizep->cs_usercopycachep;
+#endif
+
 	return csizep->cs_cachep;
 }
 
@@ -1482,7 +1489,7 @@ static int __cpuinit cpuup_callback(struct notifier_block *nfb,
 	return notifier_from_errno(err);
 }
 
-static struct notifier_block __cpuinitdata cpucache_notifier = {
+static struct notifier_block cpucache_notifier = {
 	&cpuup_callback, NULL, 0
 };
 
@@ -1667,12 +1674,12 @@ void __init kmem_cache_init(void)
 	 */
 
 	sizes[INDEX_AC].cs_cachep = create_kmalloc_cache(names[INDEX_AC].name,
-					sizes[INDEX_AC].cs_size, ARCH_KMALLOC_FLAGS);
+					sizes[INDEX_AC].cs_size, ARCH_KMALLOC_FLAGS|SLAB_USERCOPY);
 
 	if (INDEX_AC != INDEX_L3)
 		sizes[INDEX_L3].cs_cachep =
 			create_kmalloc_cache(names[INDEX_L3].name,
-				sizes[INDEX_L3].cs_size, ARCH_KMALLOC_FLAGS);
+				sizes[INDEX_L3].cs_size, ARCH_KMALLOC_FLAGS|SLAB_USERCOPY);
 
 	slab_early_init = 0;
 
@@ -1686,13 +1693,20 @@ void __init kmem_cache_init(void)
 		 */
 		if (!sizes->cs_cachep)
 			sizes->cs_cachep = create_kmalloc_cache(names->name,
-					sizes->cs_size, ARCH_KMALLOC_FLAGS);
+					sizes->cs_size, ARCH_KMALLOC_FLAGS|SLAB_USERCOPY);
 
 #ifdef CONFIG_ZONE_DMA
 		sizes->cs_dmacachep = create_kmalloc_cache(
 			names->name_dma, sizes->cs_size,
 			SLAB_CACHE_DMA|ARCH_KMALLOC_FLAGS);
 #endif
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+		sizes->cs_usercopycachep = create_kmalloc_cache(
+			names->name_usercopy, sizes->cs_size,
+			ARCH_KMALLOC_FLAGS|SLAB_USERCOPY);
+#endif
+
 		sizes++;
 		names++;
 	}
@@ -3924,6 +3938,7 @@ void kfree(const void *objp)
 
 	if (unlikely(ZERO_OR_NULL_PTR(objp)))
 		return;
+	VM_BUG_ON(!virt_addr_valid(objp));
 	local_irq_save(flags);
 	kfree_debugcheck(objp);
 	c = virt_to_cache(objp);
@@ -4365,10 +4380,10 @@ void slabinfo_show_stats(struct seq_file *m, struct kmem_cache *cachep)
 	}
 	/* cpu stats */
 	{
-		unsigned long allochit = atomic_read(&cachep->allochit);
-		unsigned long allocmiss = atomic_read(&cachep->allocmiss);
-		unsigned long freehit = atomic_read(&cachep->freehit);
-		unsigned long freemiss = atomic_read(&cachep->freemiss);
+		unsigned long allochit = atomic_read_unchecked(&cachep->allochit);
+		unsigned long allocmiss = atomic_read_unchecked(&cachep->allocmiss);
+		unsigned long freehit = atomic_read_unchecked(&cachep->freehit);
+		unsigned long freemiss = atomic_read_unchecked(&cachep->freemiss);
 
 		seq_printf(m, " : cpustat %6lu %6lu %6lu %6lu",
 			   allochit, allocmiss, freehit, freemiss);
@@ -4600,13 +4615,71 @@ static const struct file_operations proc_slabstats_operations = {
 static int __init slab_proc_init(void)
 {
 #ifdef CONFIG_DEBUG_SLAB_LEAK
-	proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
+	proc_create("slab_allocators", S_IRUSR, NULL, &proc_slabstats_operations);
 #endif
 	return 0;
 }
 module_init(slab_proc_init);
 #endif
 
+bool is_usercopy_object(const void *ptr)
+{
+	struct page *page;
+	struct kmem_cache *cachep;
+
+	if (ZERO_OR_NULL_PTR(ptr))
+		return false;
+
+	if (!slab_is_available())
+		return false;
+
+	if (!virt_addr_valid(ptr))
+		return false;
+
+	page = virt_to_head_page(ptr);
+
+	if (!PageSlab(page))
+		return false;
+
+	cachep = page->slab_cache;
+	return cachep->flags & SLAB_USERCOPY;
+}
+
+#ifdef CONFIG_PAX_USERCOPY
+const char *check_heap_object(const void *ptr, unsigned long n)
+{
+	struct page *page;
+	struct kmem_cache *cachep;
+	struct slab *slabp;
+	unsigned int objnr;
+	unsigned long offset;
+
+	if (ZERO_OR_NULL_PTR(ptr))
+		return "<null>";
+
+	if (!virt_addr_valid(ptr))
+		return NULL;
+
+	page = virt_to_head_page(ptr);
+
+	if (!PageSlab(page))
+		return NULL;
+
+	cachep = page->slab_cache;
+	if (!(cachep->flags & SLAB_USERCOPY))
+		return cachep->name;
+
+	slabp = page->slab_page;
+	objnr = obj_to_index(cachep, slabp, ptr);
+	BUG_ON(objnr >= cachep->num);
+	offset = ptr - index_to_obj(cachep, slabp, objnr) - obj_offset(cachep);
+	if (offset <= cachep->object_size && n <= cachep->object_size - offset)
+		return NULL;
+
+	return cachep->name;
+}
+#endif
+
 /**
  * ksize - get the actual amount of memory allocated for a given object
  * @objp: Pointer to the object
diff --git a/mm/slab.h b/mm/slab.h
index 34a98d6..73633d1 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -58,7 +58,7 @@ __kmem_cache_alias(struct mem_cgroup *memcg, const char *name, size_t size,
 
 /* Legal flag mask for kmem_cache_create(), for various configurations */
 #define SLAB_CORE_FLAGS (SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA | SLAB_PANIC | \
-			 SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS )
+			 SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS | SLAB_USERCOPY)
 
 #if defined(CONFIG_DEBUG_SLAB)
 #define SLAB_DEBUG_FLAGS (SLAB_RED_ZONE | SLAB_POISON | SLAB_STORE_USER)
@@ -220,6 +220,9 @@ static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x)
 		return s;
 
 	page = virt_to_head_page(x);
+
+	BUG_ON(!PageSlab(page));
+
 	cachep = page->slab_cache;
 	if (slab_equal_or_root(cachep, s))
 		return cachep;
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 3f3cd97..93b0236 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -22,7 +22,7 @@
 
 #include "slab.h"
 
-enum slab_state slab_state;
+enum slab_state slab_state __read_only;
 LIST_HEAD(slab_caches);
 DEFINE_MUTEX(slab_mutex);
 struct kmem_cache *kmem_cache;
@@ -209,7 +209,7 @@ kmem_cache_create_memcg(struct mem_cgroup *memcg, const char *name, size_t size,
 
 		err = __kmem_cache_create(s, flags);
 		if (!err) {
-			s->refcount = 1;
+			atomic_set(&s->refcount, 1);
 			list_add(&s->list, &slab_caches);
 			memcg_cache_list_add(memcg, s);
 		} else {
@@ -255,8 +255,7 @@ void kmem_cache_destroy(struct kmem_cache *s)
 
 	get_online_cpus();
 	mutex_lock(&slab_mutex);
-	s->refcount--;
-	if (!s->refcount) {
+	if (atomic_dec_and_test(&s->refcount)) {
 		list_del(&s->list);
 
 		if (!__kmem_cache_shutdown(s)) {
@@ -302,7 +301,7 @@ void __init create_boot_cache(struct kmem_cache *s, const char *name, size_t siz
 		panic("Creation of kmalloc slab %s size=%zd failed. Reason %d\n",
 					name, size, err);
 
-	s->refcount = -1;	/* Exempt from merging for now */
+	atomic_set(&s->refcount, -1);	/* Exempt from merging for now */
 }
 
 struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
@@ -315,7 +314,7 @@ struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
 
 	create_boot_cache(s, name, size, flags);
 	list_add(&s->list, &slab_caches);
-	s->refcount = 1;
+	atomic_set(&s->refcount, 1);
 	return s;
 }
 
diff --git a/mm/slob.c b/mm/slob.c
index eeed4a0..6ee34ec 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -157,7 +157,7 @@ static void set_slob(slob_t *s, slobidx_t size, slob_t *next)
 /*
  * Return the size of a slob block.
  */
-static slobidx_t slob_units(slob_t *s)
+static slobidx_t slob_units(const slob_t *s)
 {
 	if (s->units > 0)
 		return s->units;
@@ -167,7 +167,7 @@ static slobidx_t slob_units(slob_t *s)
 /*
  * Return the next free slob block pointer after this one.
  */
-static slob_t *slob_next(slob_t *s)
+static slob_t *slob_next(const slob_t *s)
 {
 	slob_t *base = (slob_t *)((unsigned long)s & PAGE_MASK);
 	slobidx_t next;
@@ -182,14 +182,14 @@ static slob_t *slob_next(slob_t *s)
 /*
  * Returns true if s is the last free block in its page.
  */
-static int slob_last(slob_t *s)
+static int slob_last(const slob_t *s)
 {
 	return !((unsigned long)slob_next(s) & ~PAGE_MASK);
 }
 
-static void *slob_new_pages(gfp_t gfp, int order, int node)
+static struct page *slob_new_pages(gfp_t gfp, unsigned int order, int node)
 {
-	void *page;
+	struct page *page;
 
 #ifdef CONFIG_NUMA
 	if (node != NUMA_NO_NODE)
@@ -201,14 +201,18 @@ static void *slob_new_pages(gfp_t gfp, int order, int node)
 	if (!page)
 		return NULL;
 
-	return page_address(page);
+	__SetPageSlab(page);
+	return page;
 }
 
-static void slob_free_pages(void *b, int order)
+static void slob_free_pages(struct page *sp, int order)
 {
 	if (current->reclaim_state)
 		current->reclaim_state->reclaimed_slab += 1 << order;
-	free_pages((unsigned long)b, order);
+	__ClearPageSlab(sp);
+	reset_page_mapcount(sp);
+	sp->private = 0;
+	__free_pages(sp, order);
 }
 
 /*
@@ -313,15 +317,15 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
 
 	/* Not enough space: must allocate a new page */
 	if (!b) {
-		b = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
-		if (!b)
+		sp = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
+		if (!sp)
 			return NULL;
-		sp = virt_to_page(b);
-		__SetPageSlab(sp);
+		b = page_address(sp);
 
 		spin_lock_irqsave(&slob_lock, flags);
 		sp->units = SLOB_UNITS(PAGE_SIZE);
 		sp->freelist = b;
+		sp->private = 0;
 		INIT_LIST_HEAD(&sp->list);
 		set_slob(b, SLOB_UNITS(PAGE_SIZE), b + SLOB_UNITS(PAGE_SIZE));
 		set_slob_page_free(sp, slob_list);
@@ -359,9 +363,7 @@ static void slob_free(void *block, int size)
 		if (slob_page_free(sp))
 			clear_slob_page_free(sp);
 		spin_unlock_irqrestore(&slob_lock, flags);
-		__ClearPageSlab(sp);
-		page_mapcount_reset(sp);
-		slob_free_pages(b, 0);
+		slob_free_pages(sp, 0);
 		return;
 	}
 
@@ -424,11 +426,10 @@ out:
  */
 
 static __always_inline void *
-__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
+__do_kmalloc_node_align(size_t size, gfp_t gfp, int node, unsigned long caller, int align)
 {
-	unsigned int *m;
-	int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
-	void *ret;
+	slob_t *m;
+	void *ret = NULL;
 
 	gfp &= gfp_allowed_mask;
 
@@ -442,23 +443,41 @@ __do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
 
 		if (!m)
 			return NULL;
-		*m = size;
+		BUILD_BUG_ON(ARCH_KMALLOC_MINALIGN < 2 * SLOB_UNIT);
+		BUILD_BUG_ON(ARCH_SLAB_MINALIGN < 2 * SLOB_UNIT);
+		m[0].units = size;
+		m[1].units = align;
 		ret = (void *)m + align;
 
 		trace_kmalloc_node(caller, ret,
 				   size, size + align, gfp, node);
 	} else {
 		unsigned int order = get_order(size);
+		struct page *page;
 
 		if (likely(order))
 			gfp |= __GFP_COMP;
-		ret = slob_new_pages(gfp, order, node);
+		page = slob_new_pages(gfp, order, node);
+		if (page) {
+			ret = page_address(page);
+			page->private = size;
+		}
 
 		trace_kmalloc_node(caller, ret,
 				   size, PAGE_SIZE << order, gfp, node);
 	}
 
-	kmemleak_alloc(ret, size, 1, gfp);
+	return ret;
+}
+
+static __always_inline void *
+__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
+{
+	int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
+	void *ret = __do_kmalloc_node_align(size, gfp, node, caller, align);
+
+	if (!ZERO_OR_NULL_PTR(ret))
+		kmemleak_alloc(ret, size, 1, gfp);
 	return ret;
 }
 
@@ -493,34 +512,112 @@ void kfree(const void *block)
 		return;
 	kmemleak_free(block);
 
+	VM_BUG_ON(!virt_addr_valid(block));
 	sp = virt_to_page(block);
-	if (PageSlab(sp)) {
+	VM_BUG_ON(!PageSlab(sp));
+	if (!sp->private) {
 		int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
-		unsigned int *m = (unsigned int *)(block - align);
-		slob_free(m, *m + align);
-	} else
+		slob_t *m = (slob_t *)(block - align);
+		slob_free(m, m[0].units + align);
+	} else {
+		__ClearPageSlab(sp);
+		reset_page_mapcount(sp);
+		sp->private = 0;
 		__free_pages(sp, compound_order(sp));
+	}
 }
 EXPORT_SYMBOL(kfree);
 
+bool is_usercopy_object(const void *ptr)
+{
+	if (!slab_is_available())
+		return false;
+
+	// PAX: TODO
+
+	return false;
+}
+
+#ifdef CONFIG_PAX_USERCOPY
+const char *check_heap_object(const void *ptr, unsigned long n)
+{
+	struct page *page;
+	const slob_t *free;
+	const void *base;
+	unsigned long flags;
+
+	if (ZERO_OR_NULL_PTR(ptr))
+		return "<null>";
+
+	if (!virt_addr_valid(ptr))
+		return NULL;
+
+	page = virt_to_head_page(ptr);
+	if (!PageSlab(page))
+		return NULL;
+
+	if (page->private) {
+		base = page;
+		if (base <= ptr && n <= page->private - (ptr - base))
+			return NULL;
+		return "<slob>";
+	}
+
+	/* some tricky double walking to find the chunk */
+	spin_lock_irqsave(&slob_lock, flags);
+	base = (void *)((unsigned long)ptr & PAGE_MASK);
+	free = page->freelist;
+
+	while (!slob_last(free) && (void *)free <= ptr) {
+		base = free + slob_units(free);
+		free = slob_next(free);
+	}
+
+	while (base < (void *)free) {
+		slobidx_t m = ((slob_t *)base)[0].units, align = ((slob_t *)base)[1].units;
+		int size = SLOB_UNIT * SLOB_UNITS(m + align);
+		int offset;
+
+		if (ptr < base + align)
+			break;
+
+		offset = ptr - base - align;
+		if (offset >= m) {
+			base += size;
+			continue;
+		}
+
+		if (n > m - offset)
+			break;
+
+		spin_unlock_irqrestore(&slob_lock, flags);
+		return NULL;
+	}
+
+	spin_unlock_irqrestore(&slob_lock, flags);
+	return "<slob>";
+}
+#endif
+
 /* can't use ksize for kmem_cache_alloc memory, only kmalloc */
 size_t ksize(const void *block)
 {
 	struct page *sp;
 	int align;
-	unsigned int *m;
+	slob_t *m;
 
 	BUG_ON(!block);
 	if (unlikely(block == ZERO_SIZE_PTR))
 		return 0;
 
 	sp = virt_to_page(block);
-	if (unlikely(!PageSlab(sp)))
-		return PAGE_SIZE << compound_order(sp);
+	VM_BUG_ON(!PageSlab(sp));
+	if (sp->private)
+		return sp->private;
 
 	align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
-	m = (unsigned int *)(block - align);
-	return SLOB_UNITS(*m) * SLOB_UNIT;
+	m = (slob_t *)(block - align);
+	return SLOB_UNITS(m[0].units) * SLOB_UNIT;
 }
 EXPORT_SYMBOL(ksize);
 
@@ -536,23 +633,33 @@ int __kmem_cache_create(struct kmem_cache *c, unsigned long flags)
 
 void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
 {
-	void *b;
+	void *b = NULL;
 
 	flags &= gfp_allowed_mask;
 
 	lockdep_trace_alloc(flags);
 
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	b = __do_kmalloc_node_align(c->size, flags, node, _RET_IP_, c->align);
+#else
 	if (c->size < PAGE_SIZE) {
 		b = slob_alloc(c->size, flags, c->align, node);
 		trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
 					    SLOB_UNITS(c->size) * SLOB_UNIT,
 					    flags, node);
 	} else {
-		b = slob_new_pages(flags, get_order(c->size), node);
+		struct page *sp;
+
+		sp = slob_new_pages(flags, get_order(c->size), node);
+		if (sp) {
+			b = page_address(sp);
+			sp->private = c->size;
+		}
 		trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
 					    PAGE_SIZE << get_order(c->size),
 					    flags, node);
 	}
+#endif
 
 	if (c->ctor)
 		c->ctor(b);
@@ -564,10 +671,14 @@ EXPORT_SYMBOL(kmem_cache_alloc_node);
 
 static void __kmem_cache_free(void *b, int size)
 {
-	if (size < PAGE_SIZE)
+	struct page *sp;
+
+	sp = virt_to_page(b);
+	BUG_ON(!PageSlab(sp));
+	if (!sp->private)
 		slob_free(b, size);
 	else
-		slob_free_pages(b, get_order(size));
+		slob_free_pages(sp, get_order(size));
 }
 
 static void kmem_rcu_free(struct rcu_head *head)
@@ -580,17 +691,31 @@ static void kmem_rcu_free(struct rcu_head *head)
 
 void kmem_cache_free(struct kmem_cache *c, void *b)
 {
+	int size = c->size;
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	if (size + c->align < PAGE_SIZE) {
+		size += c->align;
+		b -= c->align;
+	}
+#endif
+
 	kmemleak_free_recursive(b, c->flags);
 	if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) {
 		struct slob_rcu *slob_rcu;
-		slob_rcu = b + (c->size - sizeof(struct slob_rcu));
-		slob_rcu->size = c->size;
+		slob_rcu = b + (size - sizeof(struct slob_rcu));
+		slob_rcu->size = size;
 		call_rcu(&slob_rcu->head, kmem_rcu_free);
 	} else {
-		__kmem_cache_free(b, c->size);
+		__kmem_cache_free(b, size);
 	}
 
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	trace_kfree(_RET_IP_, b);
+#else
 	trace_kmem_cache_free(_RET_IP_, b);
+#endif
+
 }
 EXPORT_SYMBOL(kmem_cache_free);
 
diff --git a/mm/slub.c b/mm/slub.c
index 4aec537..a64753d 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -197,7 +197,7 @@ struct track {
 
 enum track_item { TRACK_ALLOC, TRACK_FREE };
 
-#ifdef CONFIG_SYSFS
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 static int sysfs_slab_add(struct kmem_cache *);
 static int sysfs_slab_alias(struct kmem_cache *, const char *);
 static void sysfs_slab_remove(struct kmem_cache *);
@@ -518,7 +518,7 @@ static void print_track(const char *s, struct track *t)
 	if (!t->addr)
 		return;
 
-	printk(KERN_ERR "INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
+	printk(KERN_ERR "INFO: %s in %pA age=%lu cpu=%u pid=%d\n",
 		s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid);
 #ifdef CONFIG_STACKTRACE
 	{
@@ -2653,7 +2653,7 @@ static int slub_min_objects;
  * Merge control. If this is set then no merging of slab caches will occur.
  * (Could be removed. This was introduced to pacify the merge skeptics.)
  */
-static int slub_nomerge;
+static int slub_nomerge = 1;
 
 /*
  * Calculate the order of allocation given an slab object size.
@@ -3181,6 +3181,10 @@ EXPORT_SYMBOL(kmalloc_caches);
 static struct kmem_cache *kmalloc_dma_caches[SLUB_PAGE_SHIFT];
 #endif
 
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+static struct kmem_cache *kmalloc_usercopy_caches[SLUB_PAGE_SHIFT];
+#endif
+
 static int __init setup_slub_min_order(char *str)
 {
 	get_option(&str, &slub_min_order);
@@ -3272,6 +3276,13 @@ static struct kmem_cache *get_slab(size_t size, gfp_t flags)
 		return kmalloc_dma_caches[index];
 
 #endif
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	if (flags & SLAB_USERCOPY)
+		return kmalloc_usercopy_caches[index];
+
+#endif
+
 	return kmalloc_caches[index];
 }
 
@@ -3340,6 +3351,59 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
 EXPORT_SYMBOL(__kmalloc_node);
 #endif
 
+bool is_usercopy_object(const void *ptr)
+{
+	struct page *page;
+	struct kmem_cache *s;
+
+	if (ZERO_OR_NULL_PTR(ptr))
+		return false;
+
+	if (!slab_is_available())
+		return false;
+
+	if (!virt_addr_valid(ptr))
+		return false;
+
+	page = virt_to_head_page(ptr);
+
+	if (!PageSlab(page))
+		return false;
+
+	s = page->slab_cache;
+	return s->flags & SLAB_USERCOPY;
+}
+
+#ifdef CONFIG_PAX_USERCOPY
+const char *check_heap_object(const void *ptr, unsigned long n)
+{
+	struct page *page;
+	struct kmem_cache *s;
+	unsigned long offset;
+
+	if (ZERO_OR_NULL_PTR(ptr))
+		return "<null>";
+
+	if (!virt_addr_valid(ptr))
+		return NULL;
+
+	page = virt_to_head_page(ptr);
+
+	if (!PageSlab(page))
+		return NULL;
+
+	s = page->slab_cache;
+	if (!(s->flags & SLAB_USERCOPY))
+		return s->name;
+
+	offset = (ptr - page_address(page)) % s->size;
+	if (offset <= s->object_size && n <= s->object_size - offset)
+		return NULL;
+
+	return s->name;
+}
+#endif
+
 size_t ksize(const void *object)
 {
 	struct page *page;
@@ -3404,6 +3468,7 @@ void kfree(const void *x)
 	if (unlikely(ZERO_OR_NULL_PTR(x)))
 		return;
 
+	VM_BUG_ON(!virt_addr_valid(x));
 	page = virt_to_head_page(x);
 	if (unlikely(!PageSlab(page))) {
 		BUG_ON(!PageCompound(page));
@@ -3712,17 +3777,17 @@ void __init kmem_cache_init(void)
 
 	/* Caches that are not of the two-to-the-power-of size */
 	if (KMALLOC_MIN_SIZE <= 32) {
-		kmalloc_caches[1] = create_kmalloc_cache("kmalloc-96", 96, 0);
+		kmalloc_caches[1] = create_kmalloc_cache("kmalloc-96", 96, SLAB_USERCOPY);
 		caches++;
 	}
 
 	if (KMALLOC_MIN_SIZE <= 64) {
-		kmalloc_caches[2] = create_kmalloc_cache("kmalloc-192", 192, 0);
+		kmalloc_caches[2] = create_kmalloc_cache("kmalloc-192", 192, SLAB_USERCOPY);
 		caches++;
 	}
 
 	for (i = KMALLOC_SHIFT_LOW; i < SLUB_PAGE_SHIFT; i++) {
-		kmalloc_caches[i] = create_kmalloc_cache("kmalloc", 1 << i, 0);
+		kmalloc_caches[i] = create_kmalloc_cache("kmalloc", 1 << i, SLAB_USERCOPY);
 		caches++;
 	}
 
@@ -3764,6 +3829,22 @@ void __init kmem_cache_init(void)
 		}
 	}
 #endif
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	for (i = 0; i < SLUB_PAGE_SHIFT; i++) {
+		struct kmem_cache *s = kmalloc_caches[i];
+
+		if (s && s->size) {
+			char *name = kasprintf(GFP_NOWAIT,
+				 "usercopy-kmalloc-%d", s->object_size);
+
+			BUG_ON(!name);
+			kmalloc_usercopy_caches[i] = create_kmalloc_cache(name,
+				s->object_size, SLAB_USERCOPY);
+		}
+	}
+#endif
+
 	printk(KERN_INFO
 		"SLUB: Genslabs=%d, HWalign=%d, Order=%d-%d, MinObjects=%d,"
 		" CPUs=%d, Nodes=%d\n",
@@ -3790,7 +3871,7 @@ static int slab_unmergeable(struct kmem_cache *s)
 	/*
 	 * We may have set a slab to be unmergeable during bootstrap.
 	 */
-	if (s->refcount < 0)
+	if (atomic_read(&s->refcount) < 0)
 		return 1;
 
 	return 0;
@@ -3848,7 +3929,7 @@ __kmem_cache_alias(struct mem_cgroup *memcg, const char *name, size_t size,
 
 	s = find_mergeable(memcg, size, align, flags, name, ctor);
 	if (s) {
-		s->refcount++;
+		atomic_inc(&s->refcount);
 		/*
 		 * Adjust the object sizes so that we clear
 		 * the complete object on kzalloc.
@@ -3857,7 +3938,7 @@ __kmem_cache_alias(struct mem_cgroup *memcg, const char *name, size_t size,
 		s->inuse = max_t(int, s->inuse, ALIGN(size, sizeof(void *)));
 
 		if (sysfs_slab_alias(s, name)) {
-			s->refcount--;
+			atomic_dec(&s->refcount);
 			s = NULL;
 		}
 	}
@@ -3919,7 +4000,7 @@ static int __cpuinit slab_cpuup_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata slab_notifier = {
+static struct notifier_block slab_notifier = {
 	.notifier_call = slab_cpuup_callback
 };
 
@@ -3977,7 +4058,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
 }
 #endif
 
-#ifdef CONFIG_SYSFS
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 static int count_inuse(struct page *page)
 {
 	return page->inuse;
@@ -4364,12 +4445,12 @@ static void resiliency_test(void)
 	validate_slab_cache(kmalloc_caches[9]);
 }
 #else
-#ifdef CONFIG_SYSFS
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 static void resiliency_test(void) {};
 #endif
 #endif
 
-#ifdef CONFIG_SYSFS
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 enum slab_stat_type {
 	SL_ALL,			/* All slabs */
 	SL_PARTIAL,		/* Only partially allocated slabs */
@@ -4613,7 +4694,7 @@ SLAB_ATTR_RO(ctor);
 
 static ssize_t aliases_show(struct kmem_cache *s, char *buf)
 {
-	return sprintf(buf, "%d\n", s->refcount - 1);
+	return sprintf(buf, "%d\n", atomic_read(&s->refcount) - 1);
 }
 SLAB_ATTR_RO(aliases);
 
@@ -5266,6 +5347,7 @@ static char *create_unique_id(struct kmem_cache *s)
 	return name;
 }
 
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 static int sysfs_slab_add(struct kmem_cache *s)
 {
 	int err;
@@ -5323,6 +5405,7 @@ static void sysfs_slab_remove(struct kmem_cache *s)
 	kobject_del(&s->kobj);
 	kobject_put(&s->kobj);
 }
+#endif
 
 /*
  * Need to buffer aliases during bootup until sysfs becomes
@@ -5336,6 +5419,7 @@ struct saved_alias {
 
 static struct saved_alias *alias_list;
 
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
 {
 	struct saved_alias *al;
@@ -5358,6 +5442,7 @@ static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
 	alias_list = al;
 	return 0;
 }
+#endif
 
 static int __init slab_sysfs_init(void)
 {
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index 1b7e22a..3fcd4f3 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -128,7 +128,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node)
 		void *p = vmemmap_alloc_block(PAGE_SIZE, node);
 		if (!p)
 			return NULL;
-		pud_populate(&init_mm, pud, p);
+		pud_populate_kernel(&init_mm, pud, p);
 	}
 	return pud;
 }
@@ -140,7 +140,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node)
 		void *p = vmemmap_alloc_block(PAGE_SIZE, node);
 		if (!p)
 			return NULL;
-		pgd_populate(&init_mm, pgd, p);
+		pgd_populate_kernel(&init_mm, pgd, p);
 	}
 	return pgd;
 }
diff --git a/mm/sparse.c b/mm/sparse.c
index 7ca6dc8..6472aa1 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -783,7 +783,7 @@ static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
 
 	for (i = 0; i < PAGES_PER_SECTION; i++) {
 		if (PageHWPoison(&memmap[i])) {
-			atomic_long_sub(1, &num_poisoned_pages);
+			atomic_long_sub_unchecked(1, &num_poisoned_pages);
 			ClearPageHWPoison(&memmap[i]);
 		}
 	}
diff --git a/mm/swap.c b/mm/swap.c
index 8a529a0..154ef26 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -30,6 +30,7 @@
 #include <linux/backing-dev.h>
 #include <linux/memcontrol.h>
 #include <linux/gfp.h>
+#include <linux/hugetlb.h>
 
 #include "internal.h"
 
@@ -72,6 +73,8 @@ static void __put_compound_page(struct page *page)
 
 	__page_cache_release(page);
 	dtor = get_compound_page_dtor(page);
+	if (!PageHuge(page))
+		BUG_ON(dtor != free_compound_page);
 	(*dtor)(page);
 }
 
diff --git a/mm/swapfile.c b/mm/swapfile.c
index a1f7772..9e982ac 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -66,7 +66,7 @@ static DEFINE_MUTEX(swapon_mutex);
 
 static DECLARE_WAIT_QUEUE_HEAD(proc_poll_wait);
 /* Activity counter to indicate that a swapon or swapoff has occurred */
-static atomic_t proc_poll_event = ATOMIC_INIT(0);
+static atomic_unchecked_t proc_poll_event = ATOMIC_INIT(0);
 
 static inline unsigned char swap_count(unsigned char ent)
 {
@@ -1683,7 +1683,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
 	}
 	filp_close(swap_file, NULL);
 	err = 0;
-	atomic_inc(&proc_poll_event);
+	atomic_inc_unchecked(&proc_poll_event);
 	wake_up_interruptible(&proc_poll_wait);
 
 out_dput:
@@ -1700,8 +1700,8 @@ static unsigned swaps_poll(struct file *file, poll_table *wait)
 
 	poll_wait(file, &proc_poll_wait, wait);
 
-	if (seq->poll_event != atomic_read(&proc_poll_event)) {
-		seq->poll_event = atomic_read(&proc_poll_event);
+	if (seq->poll_event != atomic_read_unchecked(&proc_poll_event)) {
+		seq->poll_event = atomic_read_unchecked(&proc_poll_event);
 		return POLLIN | POLLRDNORM | POLLERR | POLLPRI;
 	}
 
@@ -1799,7 +1799,7 @@ static int swaps_open(struct inode *inode, struct file *file)
 		return ret;
 
 	seq = file->private_data;
-	seq->poll_event = atomic_read(&proc_poll_event);
+	seq->poll_event = atomic_read_unchecked(&proc_poll_event);
 	return 0;
 }
 
@@ -2142,7 +2142,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
 		(frontswap_map) ? "FS" : "");
 
 	mutex_unlock(&swapon_mutex);
-	atomic_inc(&proc_poll_event);
+	atomic_inc_unchecked(&proc_poll_event);
 	wake_up_interruptible(&proc_poll_wait);
 
 	if (S_ISREG(inode->i_mode))
diff --git a/mm/util.c b/mm/util.c
index ab1424d..7c5bd5a 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -294,6 +294,12 @@ done:
 void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	mm->mmap_base = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP)
+		mm->mmap_base += mm->delta_mmap;
+#endif
+
 	mm->get_unmapped_area = arch_get_unmapped_area;
 	mm->unmap_area = arch_unmap_area;
 }
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 0f751f2..ef398a0 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -39,8 +39,19 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
 
 	pte = pte_offset_kernel(pmd, addr);
 	do {
-		pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
-		WARN_ON(!pte_none(ptent) && !pte_present(ptent));
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr < (unsigned long)MODULES_EXEC_END) {
+			BUG_ON(!pte_exec(*pte));
+			set_pte_at(&init_mm, addr, pte, pfn_pte(__pa(addr) >> PAGE_SHIFT, PAGE_KERNEL_EXEC));
+			continue;
+		}
+#endif
+
+		{
+			pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
+			WARN_ON(!pte_none(ptent) && !pte_present(ptent));
+		}
 	} while (pte++, addr += PAGE_SIZE, addr != end);
 }
 
@@ -100,16 +111,29 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
 	pte = pte_alloc_kernel(pmd, addr);
 	if (!pte)
 		return -ENOMEM;
+
+	pax_open_kernel();
 	do {
 		struct page *page = pages[*nr];
 
-		if (WARN_ON(!pte_none(*pte)))
+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		if (pgprot_val(prot) & _PAGE_NX)
+#endif
+
+		if (!pte_none(*pte)) {
+			pax_close_kernel();
+			WARN_ON(1);
 			return -EBUSY;
-		if (WARN_ON(!page))
+		}
+		if (!page) {
+			pax_close_kernel();
+			WARN_ON(1);
 			return -ENOMEM;
+		}
 		set_pte_at(&init_mm, addr, pte, mk_pte(page, prot));
 		(*nr)++;
 	} while (pte++, addr += PAGE_SIZE, addr != end);
+	pax_close_kernel();
 	return 0;
 }
 
@@ -119,7 +143,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
 	pmd_t *pmd;
 	unsigned long next;
 
-	pmd = pmd_alloc(&init_mm, pud, addr);
+	pmd = pmd_alloc_kernel(&init_mm, pud, addr);
 	if (!pmd)
 		return -ENOMEM;
 	do {
@@ -136,7 +160,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr,
 	pud_t *pud;
 	unsigned long next;
 
-	pud = pud_alloc(&init_mm, pgd, addr);
+	pud = pud_alloc_kernel(&init_mm, pgd, addr);
 	if (!pud)
 		return -ENOMEM;
 	do {
@@ -191,11 +215,20 @@ int is_vmalloc_or_module_addr(const void *x)
 	 * and fall back on vmalloc() if that fails. Others
 	 * just put it in the vmalloc space.
 	 */
-#if defined(CONFIG_MODULES) && defined(MODULES_VADDR)
+#ifdef CONFIG_MODULES
+#ifdef MODULES_VADDR
 	unsigned long addr = (unsigned long)x;
 	if (addr >= MODULES_VADDR && addr < MODULES_END)
 		return 1;
 #endif
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	if (x >= (const void *)MODULES_EXEC_VADDR && x < (const void *)MODULES_EXEC_END)
+		return 1;
+#endif
+
+#endif
+
 	return is_vmalloc_addr(x);
 }
 
@@ -216,8 +249,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
 
 	if (!pgd_none(*pgd)) {
 		pud_t *pud = pud_offset(pgd, addr);
+#ifdef CONFIG_X86
+		if (!pud_large(*pud))
+#endif
 		if (!pud_none(*pud)) {
 			pmd_t *pmd = pmd_offset(pud, addr);
+#ifdef CONFIG_X86
+			if (!pmd_large(*pmd))
+#endif
 			if (!pmd_none(*pmd)) {
 				pte_t *ptep, pte;
 
@@ -329,7 +368,7 @@ static void purge_vmap_area_lazy(void);
  * Allocate a region of KVA of the specified size and alignment, within the
  * vstart and vend.
  */
-static struct vmap_area *alloc_vmap_area(unsigned long size,
+static __size_overflow(1) struct vmap_area *alloc_vmap_area(unsigned long size,
 				unsigned long align,
 				unsigned long vstart, unsigned long vend,
 				int node, gfp_t gfp_mask)
@@ -1328,6 +1367,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
 	struct vm_struct *area;
 
 	BUG_ON(in_interrupt());
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
+	if (flags & VM_KERNEXEC) {
+		if (start != VMALLOC_START || end != VMALLOC_END)
+			return NULL;
+		start = (unsigned long)MODULES_EXEC_VADDR;
+		end = (unsigned long)MODULES_EXEC_END;
+	}
+#endif
+
 	if (flags & VM_IOREMAP) {
 		int bit = fls(size);
 
@@ -1569,6 +1618,11 @@ void *vmap(struct page **pages, unsigned int count,
 	if (count > totalram_pages)
 		return NULL;
 
+#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
+	if (!(pgprot_val(prot) & _PAGE_NX))
+		flags |= VM_KERNEXEC;
+#endif
+
 	area = get_vm_area_caller((count << PAGE_SHIFT), flags,
 					__builtin_return_address(0));
 	if (!area)
@@ -1670,6 +1724,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	if (!size || (size >> PAGE_SHIFT) > totalram_pages)
 		goto fail;
 
+#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
+	if (!(pgprot_val(prot) & _PAGE_NX))
+		area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST | VM_KERNEXEC,
+					  VMALLOC_START, VMALLOC_END, node, gfp_mask, caller);
+	else
+#endif
+
 	area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST,
 				  start, end, node, gfp_mask, caller);
 	if (!area)
@@ -1845,10 +1906,9 @@ EXPORT_SYMBOL(vzalloc_node);
  *	For tight control over page level allocator and protection flags
  *	use __vmalloc() instead.
  */
-
 void *vmalloc_exec(unsigned long size)
 {
-	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
+	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC,
 			      NUMA_NO_NODE, __builtin_return_address(0));
 }
 
@@ -2139,6 +2199,8 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
 	unsigned long uaddr = vma->vm_start;
 	unsigned long usize = vma->vm_end - vma->vm_start;
 
+	BUG_ON(vma->vm_mirror);
+
 	if ((PAGE_SIZE-1) & (unsigned long)addr)
 		return -EINVAL;
 
@@ -2578,7 +2640,11 @@ static int s_show(struct seq_file *m, void *p)
 		v->addr, v->addr + v->size, v->size);
 
 	if (v->caller)
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+		seq_printf(m, " %pK", v->caller);
+#else
 		seq_printf(m, " %pS", v->caller);
+#endif
 
 	if (v->nr_pages)
 		seq_printf(m, " pages=%d", v->nr_pages);
diff --git a/mm/vmstat.c b/mm/vmstat.c
index e1d8ed1..253fa3c 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -78,7 +78,7 @@ void vm_events_fold_cpu(int cpu)
  *
  * vm_stat contains the global counters
  */
-atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
+atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
 EXPORT_SYMBOL(vm_stat);
 
 #ifdef CONFIG_SMP
@@ -454,7 +454,7 @@ void refresh_cpu_vm_stats(int cpu)
 				v = p->vm_stat_diff[i];
 				p->vm_stat_diff[i] = 0;
 				local_irq_restore(flags);
-				atomic_long_add(v, &zone->vm_stat[i]);
+				atomic_long_add_unchecked(v, &zone->vm_stat[i]);
 				global_diff[i] += v;
 #ifdef CONFIG_NUMA
 				/* 3 seconds idle till flush */
@@ -492,7 +492,7 @@ void refresh_cpu_vm_stats(int cpu)
 
 	for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
 		if (global_diff[i])
-			atomic_long_add(global_diff[i], &vm_stat[i]);
+			atomic_long_add_unchecked(global_diff[i], &vm_stat[i]);
 }
 
 void drain_zonestat(struct zone *zone, struct per_cpu_pageset *pset)
@@ -503,8 +503,8 @@ void drain_zonestat(struct zone *zone, struct per_cpu_pageset *pset)
 		if (pset->vm_stat_diff[i]) {
 			int v = pset->vm_stat_diff[i];
 			pset->vm_stat_diff[i] = 0;
-			atomic_long_add(v, &zone->vm_stat[i]);
-			atomic_long_add(v, &vm_stat[i]);
+			atomic_long_add_unchecked(v, &zone->vm_stat[i]);
+			atomic_long_add_unchecked(v, &vm_stat[i]);
 		}
 }
 #endif
@@ -1224,7 +1224,7 @@ static int __cpuinit vmstat_cpuup_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata vmstat_notifier =
+static struct notifier_block vmstat_notifier =
 	{ &vmstat_cpuup_callback, NULL, 0 };
 #endif
 
@@ -1239,10 +1239,20 @@ static int __init setup_vmstat(void)
 		start_cpu_timer(cpu);
 #endif
 #ifdef CONFIG_PROC_FS
-	proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
-	proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops);
-	proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
-	proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations);
+	{
+		mode_t gr_mode = S_IRUGO;
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+		gr_mode = S_IRUSR;
+#endif
+		proc_create("buddyinfo", gr_mode, NULL, &fragmentation_file_operations);
+		proc_create("pagetypeinfo", gr_mode, NULL, &pagetypeinfo_file_ops);
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+		proc_create("vmstat", gr_mode | S_IRGRP, NULL, &proc_vmstat_file_operations);
+#else
+		proc_create("vmstat", gr_mode, NULL, &proc_vmstat_file_operations);
+#endif
+		proc_create("zoneinfo", gr_mode, NULL, &proc_zoneinfo_file_operations);
+	}
 #endif
 	return 0;
 }
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 85addcd..c429a13 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -114,6 +114,13 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
 	if (vlan_id)
 		vlan_vid_del(real_dev, vlan_id);
 
+	/* Take it out of our own structures, but be sure to interlock with
+	 * HW accelerating devices or SW vlan input packet processing if
+	 * VLAN is not 0 (leave it there for 802.1p).
+	 */
+	if (vlan_id)
+		vlan_vid_del(real_dev, vlan_id);
+
 	/* Get rid of the vlan's reference to real_dev */
 	dev_put(real_dev);
 }
@@ -496,7 +503,7 @@ out:
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block vlan_notifier_block __read_mostly = {
+static struct notifier_block vlan_notifier_block = {
 	.notifier_call = vlan_device_event,
 };
 
@@ -571,8 +578,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
 		err = -EPERM;
 		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
-		if ((args.u.name_type >= 0) &&
-		    (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
+		if (args.u.name_type < VLAN_NAME_TYPE_HIGHEST) {
 			struct vlan_net *vn;
 
 			vn = net_generic(net, vlan_net_id);
diff --git a/net/9p/mod.c b/net/9p/mod.c
index 6ab36ae..6f1841b 100644
--- a/net/9p/mod.c
+++ b/net/9p/mod.c
@@ -84,7 +84,7 @@ static LIST_HEAD(v9fs_trans_list);
 void v9fs_register_trans(struct p9_trans_module *m)
 {
 	spin_lock(&v9fs_trans_lock);
-	list_add_tail(&m->list, &v9fs_trans_list);
+	pax_list_add_tail((struct list_head *)&m->list, &v9fs_trans_list);
 	spin_unlock(&v9fs_trans_lock);
 }
 EXPORT_SYMBOL(v9fs_register_trans);
@@ -97,7 +97,7 @@ EXPORT_SYMBOL(v9fs_register_trans);
 void v9fs_unregister_trans(struct p9_trans_module *m)
 {
 	spin_lock(&v9fs_trans_lock);
-	list_del_init(&m->list);
+	pax_list_del_init((struct list_head *)&m->list);
 	spin_unlock(&v9fs_trans_lock);
 }
 EXPORT_SYMBOL(v9fs_unregister_trans);
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index 02efb25..41541a9 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -425,7 +425,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len)
 	oldfs = get_fs();
 	set_fs(get_ds());
 	/* The cast to a user pointer is valid due to the set_fs() */
-	ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos);
+	ret = vfs_write(ts->wr, (void __force_user *)v, len, &ts->wr->f_pos);
 	set_fs(oldfs);
 
 	if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
diff --git a/net/atm/atm_misc.c b/net/atm/atm_misc.c
index 876fbe8..8bbea9f 100644
--- a/net/atm/atm_misc.c
+++ b/net/atm/atm_misc.c
@@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int truesize)
 	if (atomic_read(&sk_atm(vcc)->sk_rmem_alloc) <= sk_atm(vcc)->sk_rcvbuf)
 		return 1;
 	atm_return(vcc, truesize);
-	atomic_inc(&vcc->stats->rx_drop);
+	atomic_inc_unchecked(&vcc->stats->rx_drop);
 	return 0;
 }
 EXPORT_SYMBOL(atm_charge);
@@ -39,7 +39,7 @@ struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc, int pdu_size,
 		}
 	}
 	atm_return(vcc, guess);
-	atomic_inc(&vcc->stats->rx_drop);
+	atomic_inc_unchecked(&vcc->stats->rx_drop);
 	return NULL;
 }
 EXPORT_SYMBOL(atm_alloc_charge);
@@ -86,7 +86,7 @@ EXPORT_SYMBOL(atm_pcr_goal);
 
 void sonet_copy_stats(struct k_sonet_stats *from, struct sonet_stats *to)
 {
-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
+#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
 	__SONET_ITEMS
 #undef __HANDLE_ITEM
 }
@@ -94,7 +94,7 @@ EXPORT_SYMBOL(sonet_copy_stats);
 
 void sonet_subtract_stats(struct k_sonet_stats *from, struct sonet_stats *to)
 {
-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
+#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i,&from->i)
 	__SONET_ITEMS
 #undef __HANDLE_ITEM
 }
diff --git a/net/atm/lec.h b/net/atm/lec.h
index a86aff9..3a0d6f6 100644
--- a/net/atm/lec.h
+++ b/net/atm/lec.h
@@ -48,7 +48,7 @@ struct lane2_ops {
 			      const u8 *tlvs, u32 sizeoftlvs);
 	void (*associate_indicator) (struct net_device *dev, const u8 *mac_addr,
 				     const u8 *tlvs, u32 sizeoftlvs);
-};
+} __no_const;
 
 /*
  * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType
diff --git a/net/atm/proc.c b/net/atm/proc.c
index 6ac35ff..ac0e136 100644
--- a/net/atm/proc.c
+++ b/net/atm/proc.c
@@ -45,9 +45,9 @@ static void add_stats(struct seq_file *seq, const char *aal,
   const struct k_atm_aal_stats *stats)
 {
 	seq_printf(seq, "%s ( %d %d %d %d %d )", aal,
-		   atomic_read(&stats->tx), atomic_read(&stats->tx_err),
-		   atomic_read(&stats->rx), atomic_read(&stats->rx_err),
-		   atomic_read(&stats->rx_drop));
+		   atomic_read_unchecked(&stats->tx),atomic_read_unchecked(&stats->tx_err),
+		   atomic_read_unchecked(&stats->rx),atomic_read_unchecked(&stats->rx_err),
+		   atomic_read_unchecked(&stats->rx_drop));
 }
 
 static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev)
diff --git a/net/atm/resources.c b/net/atm/resources.c
index 0447d5d..3cf4728 100644
--- a/net/atm/resources.c
+++ b/net/atm/resources.c
@@ -160,7 +160,7 @@ EXPORT_SYMBOL(atm_dev_deregister);
 static void copy_aal_stats(struct k_atm_aal_stats *from,
     struct atm_aal_stats *to)
 {
-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
+#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
 	__AAL_STAT_ITEMS
 #undef __HANDLE_ITEM
 }
@@ -168,7 +168,7 @@ static void copy_aal_stats(struct k_atm_aal_stats *from,
 static void subtract_aal_stats(struct k_atm_aal_stats *from,
     struct atm_aal_stats *to)
 {
-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
+#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i, &from->i)
 	__AAL_STAT_ITEMS
 #undef __HANDLE_ITEM
 }
diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
index d5744b7..506bae3 100644
--- a/net/ax25/sysctl_net_ax25.c
+++ b/net/ax25/sysctl_net_ax25.c
@@ -152,7 +152,7 @@ int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
 {
 	char path[sizeof("net/ax25/") + IFNAMSIZ];
 	int k;
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
 	if (!table)
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index a5bb0a7..e1d8b97 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -63,7 +63,7 @@ static int batadv_iv_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
 
 	/* randomize initial seqno to avoid collision */
 	get_random_bytes(&random_seqno, sizeof(random_seqno));
-	atomic_set(&hard_iface->bat_iv.ogm_seqno, random_seqno);
+	atomic_set_unchecked(&hard_iface->bat_iv.ogm_seqno, random_seqno);
 
 	hard_iface->bat_iv.ogm_buff_len = BATADV_OGM_HLEN;
 	ogm_buff = kmalloc(hard_iface->bat_iv.ogm_buff_len, GFP_ATOMIC);
@@ -611,9 +611,9 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	batadv_ogm_packet = (struct batadv_ogm_packet *)(*ogm_buff);
 
 	/* change sequence number to network order */
-	seqno = (uint32_t)atomic_read(&hard_iface->bat_iv.ogm_seqno);
+	seqno = (uint32_t)atomic_read_unchecked(&hard_iface->bat_iv.ogm_seqno);
 	batadv_ogm_packet->seqno = htonl(seqno);
-	atomic_inc(&hard_iface->bat_iv.ogm_seqno);
+	atomic_inc_unchecked(&hard_iface->bat_iv.ogm_seqno);
 
 	batadv_ogm_packet->ttvn = atomic_read(&bat_priv->tt.vn);
 	batadv_ogm_packet->tt_crc = htons(bat_priv->tt.local_crc);
@@ -1013,7 +1013,7 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 		return;
 
 	/* could be changed by schedule_own_packet() */
-	if_incoming_seqno = atomic_read(&if_incoming->bat_iv.ogm_seqno);
+	if_incoming_seqno = atomic_read_unchecked(&if_incoming->bat_iv.ogm_seqno);
 
 	if (batadv_ogm_packet->flags & BATADV_DIRECTLINK)
 		has_directlink_flag = 1;
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 368219e..53f56f9 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -370,7 +370,7 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
 	hard_iface->batman_adv_ptype.dev = hard_iface->net_dev;
 	dev_add_pack(&hard_iface->batman_adv_ptype);
 
-	atomic_set(&hard_iface->frag_seqno, 1);
+	atomic_set_unchecked(&hard_iface->frag_seqno, 1);
 	batadv_info(hard_iface->soft_iface, "Adding interface: %s\n",
 		    hard_iface->net_dev->name);
 
@@ -514,7 +514,7 @@ batadv_hardif_add_interface(struct net_device *net_dev)
 	/* This can't be called via a bat_priv callback because
 	 * we have no bat_priv yet.
 	 */
-	atomic_set(&hard_iface->bat_iv.ogm_seqno, 1);
+	atomic_set_unchecked(&hard_iface->bat_iv.ogm_seqno, 1);
 	hard_iface->bat_iv.ogm_buff = NULL;
 
 	return hard_iface;
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 2711e87..4ca48fa 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -252,7 +252,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
 		       primary_if->net_dev->dev_addr, ETH_ALEN);
 
 		/* set broadcast sequence number */
-		seqno = atomic_inc_return(&bat_priv->bcast_seqno);
+		seqno = atomic_inc_return_unchecked(&bat_priv->bcast_seqno);
 		bcast_packet->seqno = htonl(seqno);
 
 		batadv_add_bcast_packet_to_list(bat_priv, skb, brd_delay);
@@ -527,7 +527,7 @@ struct net_device *batadv_softif_create(const char *name)
 	atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN);
 
 	atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE);
-	atomic_set(&bat_priv->bcast_seqno, 1);
+	atomic_set_unchecked(&bat_priv->bcast_seqno, 1);
 	atomic_set(&bat_priv->tt.vn, 0);
 	atomic_set(&bat_priv->tt.local_changes, 0);
 	atomic_set(&bat_priv->tt.ogm_append_cnt, 0);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 4cd87a0..348e705 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -51,7 +51,7 @@
 struct batadv_hard_iface_bat_iv {
 	unsigned char *ogm_buff;
 	int ogm_buff_len;
-	atomic_t ogm_seqno;
+	atomic_unchecked_t ogm_seqno;
 };
 
 /**
@@ -75,7 +75,7 @@ struct batadv_hard_iface {
 	int16_t if_num;
 	char if_status;
 	struct net_device *net_dev;
-	atomic_t frag_seqno;
+	atomic_unchecked_t frag_seqno;
 	struct kobject *hardif_obj;
 	atomic_t refcount;
 	struct packet_type batman_adv_ptype;
@@ -495,7 +495,7 @@ struct batadv_priv {
 #ifdef CONFIG_BATMAN_ADV_DEBUG
 	atomic_t log_level;
 #endif
-	atomic_t bcast_seqno;
+	atomic_unchecked_t bcast_seqno;
 	atomic_t bcast_queue_left;
 	atomic_t batman_queue_left;
 	char num_ifaces;
diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c
index 50e079f..49ce2d2 100644
--- a/net/batman-adv/unicast.c
+++ b/net/batman-adv/unicast.c
@@ -270,7 +270,7 @@ int batadv_frag_send_skb(struct sk_buff *skb, struct batadv_priv *bat_priv,
 	frag1->flags = BATADV_UNI_FRAG_HEAD | large_tail;
 	frag2->flags = large_tail;
 
-	seqno = atomic_add_return(2, &hard_iface->frag_seqno);
+	seqno = atomic_add_return_unchecked(2, &hard_iface->frag_seqno);
 	frag1->seqno = htons(seqno - 1);
 	frag2->seqno = htons(seqno);
 
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 6a93614..1415549 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -929,7 +929,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
 			uf.event_mask[1] = *((u32 *) f->event_mask + 1);
 		}
 
-		len = min_t(unsigned int, len, sizeof(uf));
+		len = min((size_t)len, sizeof(uf));
 		if (copy_from_user(&uf, optval, len)) {
 			err = -EFAULT;
 			break;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 7c7e932..7a7815d 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3395,8 +3395,10 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len,
 			break;
 
 		case L2CAP_CONF_RFC:
-			if (olen == sizeof(rfc))
-				memcpy(&rfc, (void *)val, olen);
+			if (olen != sizeof(rfc))
+				break;
+
+			memcpy(&rfc, (void *)val, olen);
 
 			if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) &&
 			    rfc.mode != chan->mode)
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 1bcfb84..dad9f98 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -479,7 +479,8 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
 	struct sock *sk = sock->sk;
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
 	struct l2cap_options opts;
-	int len, err = 0;
+	int err = 0;
+	size_t len = optlen;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -501,7 +502,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
 		opts.max_tx   = chan->max_tx;
 		opts.txwin_size = chan->tx_win;
 
-		len = min_t(unsigned int, sizeof(opts), optlen);
+		len = min(sizeof(opts), len);
 		if (copy_from_user((char *) &opts, optval, len)) {
 			err = -EFAULT;
 			break;
@@ -581,7 +582,8 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 	struct bt_security sec;
 	struct bt_power pwr;
 	struct l2cap_conn *conn;
-	int len, err = 0;
+	int err = 0;
+	size_t len = optlen;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -604,7 +606,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 
 		sec.level = BT_SECURITY_LOW;
 
-		len = min_t(unsigned int, sizeof(sec), optlen);
+		len = min(sizeof(sec), len);
 		if (copy_from_user((char *) &sec, optval, len)) {
 			err = -EFAULT;
 			break;
@@ -701,7 +703,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 
 		pwr.force_active = BT_POWER_FORCE_ACTIVE_ON;
 
-		len = min_t(unsigned int, sizeof(pwr), optlen);
+		len = min(sizeof(pwr), len);
 		if (copy_from_user((char *) &pwr, optval, len)) {
 			err = -EFAULT;
 			break;
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 7c9224b..381009e 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -666,7 +666,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
 	struct sock *sk = sock->sk;
 	struct bt_security sec;
 	int err = 0;
-	size_t len;
+	size_t len = optlen;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -688,7 +688,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
 
 		sec.level = BT_SECURITY_LOW;
 
-		len = min_t(unsigned int, sizeof(sec), optlen);
+		len = min(sizeof(sec), len);
 		if (copy_from_user((char *) &sec, optval, len)) {
 			err = -EFAULT;
 			break;
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index b6e44ad..5b0d514 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -309,7 +309,7 @@ static void rfcomm_dev_del(struct rfcomm_dev *dev)
 	BUG_ON(test_and_set_bit(RFCOMM_TTY_RELEASED, &dev->flags));
 
 	spin_lock_irqsave(&dev->port.lock, flags);
-	if (dev->port.count > 0) {
+	if (atomic_read(&dev->port.count) > 0) {
 		spin_unlock_irqrestore(&dev->port.lock, flags);
 		return;
 	}
@@ -659,10 +659,10 @@ static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)
 		return -ENODEV;
 
 	BT_DBG("dev %p dst %pMR channel %d opened %d", dev, &dev->dst,
-	       dev->channel, dev->port.count);
+	       dev->channel, atomic_read(&dev->port.count));
 
 	spin_lock_irqsave(&dev->port.lock, flags);
-	if (++dev->port.count > 1) {
+	if (atomic_inc_return(&dev->port.count) > 1) {
 		spin_unlock_irqrestore(&dev->port.lock, flags);
 		return 0;
 	}
@@ -727,10 +727,10 @@ static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
 		return;
 
 	BT_DBG("tty %p dev %p dlc %p opened %d", tty, dev, dev->dlc,
-						dev->port.count);
+						atomic_read(&dev->port.count));
 
 	spin_lock_irqsave(&dev->port.lock, flags);
-	if (!--dev->port.count) {
+	if (!atomic_dec_return(&dev->port.count)) {
 		spin_unlock_irqrestore(&dev->port.lock, flags);
 		if (dev->tty_dev->parent)
 			device_move(dev->tty_dev, NULL, DPM_ORDER_DEV_LAST);
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 8d493c9..3849e49 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1525,7 +1525,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 			tmp.valid_hooks = t->table->valid_hooks;
 		}
 		mutex_unlock(&ebt_mutex);
-		if (copy_to_user(user, &tmp, *len) != 0){
+		if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0){
 			BUGPRINT("c2u Didn't work\n");
 			ret = -EFAULT;
 			break;
@@ -2331,7 +2331,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
 			goto out;
 		tmp.valid_hooks = t->valid_hooks;
 
-		if (copy_to_user(user, &tmp, *len) != 0) {
+		if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
 			ret = -EFAULT;
 			break;
 		}
@@ -2342,7 +2342,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
 		tmp.entries_size = t->table->entries_size;
 		tmp.valid_hooks = t->table->valid_hooks;
 
-		if (copy_to_user(user, &tmp, *len) != 0) {
+		if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
 			ret = -EFAULT;
 			break;
 		}
diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c
index a376ec1..1fbd6be 100644
--- a/net/caif/cfctrl.c
+++ b/net/caif/cfctrl.c
@@ -10,6 +10,7 @@
 #include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/pkt_sched.h>
+#include <linux/sched.h>
 #include <net/caif/caif_layer.h>
 #include <net/caif/cfpkt.h>
 #include <net/caif/cfctrl.h>
@@ -43,8 +44,8 @@ struct cflayer *cfctrl_create(void)
 	memset(&dev_info, 0, sizeof(dev_info));
 	dev_info.id = 0xff;
 	cfsrvl_init(&this->serv, 0, &dev_info, false);
-	atomic_set(&this->req_seq_no, 1);
-	atomic_set(&this->rsp_seq_no, 1);
+	atomic_set_unchecked(&this->req_seq_no, 1);
+	atomic_set_unchecked(&this->rsp_seq_no, 1);
 	this->serv.layer.receive = cfctrl_recv;
 	sprintf(this->serv.layer.name, "ctrl");
 	this->serv.layer.ctrlcmd = cfctrl_ctrlcmd;
@@ -130,8 +131,8 @@ static void cfctrl_insert_req(struct cfctrl *ctrl,
 			      struct cfctrl_request_info *req)
 {
 	spin_lock_bh(&ctrl->info_list_lock);
-	atomic_inc(&ctrl->req_seq_no);
-	req->sequence_no = atomic_read(&ctrl->req_seq_no);
+	atomic_inc_unchecked(&ctrl->req_seq_no);
+	req->sequence_no = atomic_read_unchecked(&ctrl->req_seq_no);
 	list_add_tail(&req->list, &ctrl->list);
 	spin_unlock_bh(&ctrl->info_list_lock);
 }
@@ -149,7 +150,7 @@ static struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
 			if (p != first)
 				pr_warn("Requests are not received in order\n");
 
-			atomic_set(&ctrl->rsp_seq_no,
+			atomic_set_unchecked(&ctrl->rsp_seq_no,
 					 p->sequence_no);
 			list_del(&p->list);
 			goto out;
diff --git a/net/can/af_can.c b/net/can/af_can.c
index c48e522..1223690 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -870,7 +870,7 @@ static const struct net_proto_family can_family_ops = {
 };
 
 /* notifier block for netdevice event */
-static struct notifier_block can_netdev_notifier __read_mostly = {
+static struct notifier_block can_netdev_notifier = {
 	.notifier_call = can_notifier,
 };
 
diff --git a/net/can/gw.c b/net/can/gw.c
index 117814a..ad4fb73 100644
--- a/net/can/gw.c
+++ b/net/can/gw.c
@@ -80,7 +80,6 @@ MODULE_PARM_DESC(max_hops,
 		 "default: " __stringify(CGW_DEFAULT_HOPS) ")");
 
 static HLIST_HEAD(cgw_list);
-static struct notifier_block notifier;
 
 static struct kmem_cache *cgw_cache __read_mostly;
 
@@ -928,6 +927,10 @@ static int cgw_remove_job(struct sk_buff *skb,  struct nlmsghdr *nlh, void *arg)
 	return err;
 }
 
+static struct notifier_block notifier = {
+	.notifier_call = cgw_notifier
+};
+
 static __init int cgw_module_init(void)
 {
 	/* sanitize given module parameter */
@@ -943,7 +946,6 @@ static __init int cgw_module_init(void)
 		return -ENOMEM;
 
 	/* set notifier */
-	notifier.notifier_call = cgw_notifier;
 	register_netdevice_notifier(&notifier);
 
 	if (__rtnl_register(PF_CAN, RTM_GETROUTE, NULL, cgw_dump_jobs, NULL)) {
diff --git a/net/compat.c b/net/compat.c
index 79ae884..17c5c09 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -71,9 +71,9 @@ int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg)
 	    __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
 	    __get_user(kmsg->msg_flags, &umsg->msg_flags))
 		return -EFAULT;
-	kmsg->msg_name = compat_ptr(tmp1);
-	kmsg->msg_iov = compat_ptr(tmp2);
-	kmsg->msg_control = compat_ptr(tmp3);
+	kmsg->msg_name = (void __force_kernel *)compat_ptr(tmp1);
+	kmsg->msg_iov = (void __force_kernel *)compat_ptr(tmp2);
+	kmsg->msg_control = (void __force_kernel *)compat_ptr(tmp3);
 	return 0;
 }
 
@@ -85,7 +85,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
 
 	if (kern_msg->msg_namelen) {
 		if (mode == VERIFY_READ) {
-			int err = move_addr_to_kernel(kern_msg->msg_name,
+			int err = move_addr_to_kernel((void __force_user *)kern_msg->msg_name,
 						      kern_msg->msg_namelen,
 						      kern_address);
 			if (err < 0)
@@ -96,7 +96,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
 		kern_msg->msg_name = NULL;
 
 	tot_len = iov_from_user_compat_to_kern(kern_iov,
-					  (struct compat_iovec __user *)kern_msg->msg_iov,
+					  (struct compat_iovec __force_user *)kern_msg->msg_iov,
 					  kern_msg->msg_iovlen);
 	if (tot_len >= 0)
 		kern_msg->msg_iov = kern_iov;
@@ -116,20 +116,20 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
 
 #define CMSG_COMPAT_FIRSTHDR(msg)			\
 	(((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ?	\
-	 (struct compat_cmsghdr __user *)((msg)->msg_control) :		\
+	 (struct compat_cmsghdr __force_user *)((msg)->msg_control) :		\
 	 (struct compat_cmsghdr __user *)NULL)
 
 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
 	((ucmlen) >= sizeof(struct compat_cmsghdr) && \
 	 (ucmlen) <= (unsigned long) \
 	 ((mhdr)->msg_controllen - \
-	  ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
+	  ((char __force_kernel *)(ucmsg) - (char *)(mhdr)->msg_control)))
 
 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
 		struct compat_cmsghdr __user *cmsg, int cmsg_len)
 {
 	char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
-	if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
+	if ((unsigned long)(ptr + 1 - (char __force_user *)msg->msg_control) >
 			msg->msg_controllen)
 		return NULL;
 	return (struct compat_cmsghdr __user *)ptr;
@@ -219,7 +219,7 @@ Efault:
 
 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
 {
-	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
+	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
 	struct compat_cmsghdr cmhdr;
 	struct compat_timeval ctv;
 	struct compat_timespec cts[3];
@@ -275,7 +275,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
 
 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
 {
-	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
+	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
 	int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
 	int fdnum = scm->fp->count;
 	struct file **fp = scm->fp->fp;
@@ -363,7 +363,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
 		return -EFAULT;
 	old_fs = get_fs();
 	set_fs(KERNEL_DS);
-	err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
+	err = sock_setsockopt(sock, level, optname, (char __force_user *)&ktime, sizeof(ktime));
 	set_fs(old_fs);
 
 	return err;
@@ -424,7 +424,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname,
 	len = sizeof(ktime);
 	old_fs = get_fs();
 	set_fs(KERNEL_DS);
-	err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
+	err = sock_getsockopt(sock, level, optname, (char __force_user *) &ktime, (int __force_user *)&len);
 	set_fs(old_fs);
 
 	if (!err) {
@@ -567,7 +567,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
 	case MCAST_JOIN_GROUP:
 	case MCAST_LEAVE_GROUP:
 	{
-		struct compat_group_req __user *gr32 = (void *)optval;
+		struct compat_group_req __user *gr32 = (void __user *)optval;
 		struct group_req __user *kgr =
 			compat_alloc_user_space(sizeof(struct group_req));
 		u32 interface;
@@ -588,7 +588,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
 	case MCAST_BLOCK_SOURCE:
 	case MCAST_UNBLOCK_SOURCE:
 	{
-		struct compat_group_source_req __user *gsr32 = (void *)optval;
+		struct compat_group_source_req __user *gsr32 = (void __user *)optval;
 		struct group_source_req __user *kgsr = compat_alloc_user_space(
 			sizeof(struct group_source_req));
 		u32 interface;
@@ -609,7 +609,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
 	}
 	case MCAST_MSFILTER:
 	{
-		struct compat_group_filter __user *gf32 = (void *)optval;
+		struct compat_group_filter __user *gf32 = (void __user *)optval;
 		struct group_filter __user *kgf;
 		u32 interface, fmode, numsrc;
 
@@ -647,7 +647,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
 	char __user *optval, int __user *optlen,
 	int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
 {
-	struct compat_group_filter __user *gf32 = (void *)optval;
+	struct compat_group_filter __user *gf32 = (void __user *)optval;
 	struct group_filter __user *kgf;
 	int __user	*koptlen;
 	u32 interface, fmode, numsrc;
@@ -796,7 +796,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
 
 	if (call < SYS_SOCKET || call > SYS_SENDMMSG)
 		return -EINVAL;
-	if (copy_from_user(a, args, nas[call]))
+	if (nas[call] > sizeof a || copy_from_user(a, args, nas[call]))
 		return -EFAULT;
 	a0 = a[0];
 	a1 = a[1];
diff --git a/net/core/datagram.c b/net/core/datagram.c
index 368f9c3..f82d4a3 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -289,7 +289,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags)
 	}
 
 	kfree_skb(skb);
-	atomic_inc(&sk->sk_drops);
+	atomic_inc_unchecked(&sk->sk_drops);
 	sk_mem_reclaim_partial(sk);
 
 	return err;
diff --git a/net/core/dev.c b/net/core/dev.c
index 9a278e9..15f2b9e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1617,7 +1617,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
 {
 	if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
 		if (skb_copy_ubufs(skb, GFP_ATOMIC)) {
-			atomic_long_inc(&dev->rx_dropped);
+			atomic_long_inc_unchecked(&dev->rx_dropped);
 			kfree_skb(skb);
 			return NET_RX_DROP;
 		}
@@ -1626,7 +1626,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
 	skb_orphan(skb);
 
 	if (unlikely(!is_skb_forwardable(dev, skb))) {
-		atomic_long_inc(&dev->rx_dropped);
+		atomic_long_inc_unchecked(&dev->rx_dropped);
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
@@ -2351,7 +2351,7 @@ static int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
 
 struct dev_gso_cb {
 	void (*destructor)(struct sk_buff *skb);
-};
+} __no_const;
 
 #define DEV_GSO_CB(skb) ((struct dev_gso_cb *)(skb)->cb)
 
@@ -3093,7 +3093,7 @@ enqueue:
 
 	local_irq_restore(flags);
 
-	atomic_long_inc(&skb->dev->rx_dropped);
+	atomic_long_inc_unchecked(&skb->dev->rx_dropped);
 	kfree_skb(skb);
 	return NET_RX_DROP;
 }
@@ -3165,7 +3165,7 @@ int netif_rx_ni(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(netif_rx_ni);
 
-static void net_tx_action(struct softirq_action *h)
+static void net_tx_action(void)
 {
 	struct softnet_data *sd = &__get_cpu_var(softnet_data);
 
@@ -3490,7 +3490,7 @@ ncls:
 			ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
 	} else {
 drop:
-		atomic_long_inc(&skb->dev->rx_dropped);
+		atomic_long_inc_unchecked(&skb->dev->rx_dropped);
 		kfree_skb(skb);
 		/* Jamal, now you will not able to escape explaining
 		 * me how you were going to use this. :-)
@@ -4095,7 +4095,7 @@ void netif_napi_del(struct napi_struct *napi)
 }
 EXPORT_SYMBOL(netif_napi_del);
 
-static void net_rx_action(struct softirq_action *h)
+static void net_rx_action(void)
 {
 	struct softnet_data *sd = &__get_cpu_var(softnet_data);
 	unsigned long time_limit = jiffies + 2;
@@ -5522,7 +5522,7 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
 	} else {
 		netdev_stats_to_stats64(storage, &dev->stats);
 	}
-	storage->rx_dropped += atomic_long_read(&dev->rx_dropped);
+	storage->rx_dropped += atomic_long_read_unchecked(&dev->rx_dropped);
 	return storage;
 }
 EXPORT_SYMBOL(dev_get_stats);
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
index 6cc0481..59cfb00 100644
--- a/net/core/dev_ioctl.c
+++ b/net/core/dev_ioctl.c
@@ -376,9 +376,13 @@ void dev_load(struct net *net, const char *name)
 	if (no_module && capable(CAP_NET_ADMIN))
 		no_module = request_module("netdev-%s", name);
 	if (no_module && capable(CAP_SYS_MODULE)) {
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+		___request_module(true, "grsec_modharden_netdev", "%s", name);
+#else
 		if (!request_module("%s", name))
 			pr_warn("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated).  Use CAP_NET_ADMIN and alias netdev-%s instead.\n",
 				name);
+#endif
 	}
 }
 EXPORT_SYMBOL(dev_load);
diff --git a/net/core/flow.c b/net/core/flow.c
index 2bfd081..53c6058 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -61,7 +61,7 @@ struct flow_cache {
 	struct timer_list		rnd_timer;
 };
 
-atomic_t flow_cache_genid = ATOMIC_INIT(0);
+atomic_unchecked_t flow_cache_genid = ATOMIC_INIT(0);
 EXPORT_SYMBOL(flow_cache_genid);
 static struct flow_cache flow_cache_global;
 static struct kmem_cache *flow_cachep __read_mostly;
@@ -86,7 +86,7 @@ static void flow_cache_new_hashrnd(unsigned long arg)
 
 static int flow_entry_valid(struct flow_cache_entry *fle)
 {
-	if (atomic_read(&flow_cache_genid) != fle->genid)
+	if (atomic_read_unchecked(&flow_cache_genid) != fle->genid)
 		return 0;
 	if (fle->object && !fle->object->ops->check(fle->object))
 		return 0;
@@ -258,7 +258,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
 			hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]);
 			fcp->hash_count++;
 		}
-	} else if (likely(fle->genid == atomic_read(&flow_cache_genid))) {
+	} else if (likely(fle->genid == atomic_read_unchecked(&flow_cache_genid))) {
 		flo = fle->object;
 		if (!flo)
 			goto ret_object;
@@ -279,7 +279,7 @@ nocache:
 	}
 	flo = resolver(net, key, family, dir, flo, ctx);
 	if (fle) {
-		fle->genid = atomic_read(&flow_cache_genid);
+		fle->genid = atomic_read_unchecked(&flow_cache_genid);
 		if (!IS_ERR(flo))
 			fle->object = flo;
 		else
diff --git a/net/core/iovec.c b/net/core/iovec.c
index 7e7aeb0..2a998cb 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -42,7 +42,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
 	if (m->msg_namelen) {
 		if (mode == VERIFY_READ) {
 			void __user *namep;
-			namep = (void __user __force *) m->msg_name;
+			namep = (void __force_user *) m->msg_name;
 			err = move_addr_to_kernel(namep, m->msg_namelen,
 						  address);
 			if (err < 0)
@@ -54,7 +54,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
 	}
 
 	size = m->msg_iovlen * sizeof(struct iovec);
-	if (copy_from_user(iov, (void __user __force *) m->msg_iov, size))
+	if (copy_from_user(iov, (void __force_user *) m->msg_iov, size))
 		return -EFAULT;
 
 	m->msg_iov = iov;
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 3863b8f..85c99a6 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -2778,7 +2778,7 @@ static int proc_unres_qlen(ctl_table *ctl, int write, void __user *buffer,
 			   size_t *lenp, loff_t *ppos)
 {
 	int size, ret;
-	ctl_table tmp = *ctl;
+	ctl_table_no_const tmp = *ctl;
 
 	tmp.extra1 = &zero;
 	tmp.extra2 = &unres_qlen_max;
diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
index 3174f19..5810985 100644
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -271,8 +271,13 @@ static int ptype_seq_show(struct seq_file *seq, void *v)
 		else
 			seq_printf(seq, "%04x", ntohs(pt->type));
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+		seq_printf(seq, " %-8s %pF\n",
+			   pt->dev ? pt->dev->name : "", NULL);
+#else
 		seq_printf(seq, " %-8s %pF\n",
 			   pt->dev ? pt->dev->name : "", pt->func);
+#endif
 	}
 
 	return 0;
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 7427ab5..389f411 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1321,7 +1321,7 @@ void netdev_class_remove_file(struct class_attribute *class_attr)
 }
 EXPORT_SYMBOL(netdev_class_remove_file);
 
-int netdev_kobject_init(void)
+int __init netdev_kobject_init(void)
 {
 	kobj_ns_type_register(&net_ns_type_operations);
 	return class_register(&net_class);
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 80e271d..2980cc2 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -442,7 +442,7 @@ static int __register_pernet_operations(struct list_head *list,
 	int error;
 	LIST_HEAD(net_exit_list);
 
-	list_add_tail(&ops->list, list);
+	pax_list_add_tail((struct list_head *)&ops->list, list);
 	if (ops->init || (ops->id && ops->size)) {
 		for_each_net(net) {
 			error = ops_init(ops, net);
@@ -455,7 +455,7 @@ static int __register_pernet_operations(struct list_head *list,
 
 out_undo:
 	/* If I have an error cleanup all namespaces I initialized */
-	list_del(&ops->list);
+	pax_list_del((struct list_head *)&ops->list);
 	ops_exit_list(ops, &net_exit_list);
 	ops_free_list(ops, &net_exit_list);
 	return error;
@@ -466,7 +466,7 @@ static void __unregister_pernet_operations(struct pernet_operations *ops)
 	struct net *net;
 	LIST_HEAD(net_exit_list);
 
-	list_del(&ops->list);
+	pax_list_del((struct list_head *)&ops->list);
 	for_each_net(net)
 		list_add_tail(&net->exit_list, &net_exit_list);
 	ops_exit_list(ops, &net_exit_list);
@@ -600,7 +600,7 @@ int register_pernet_device(struct pernet_operations *ops)
 	mutex_lock(&net_mutex);
 	error = register_pernet_operations(&pernet_list, ops);
 	if (!error && (first_device == &pernet_list))
-		first_device = &ops->list;
+		first_device = (struct list_head *)&ops->list;
 	mutex_unlock(&net_mutex);
 	return error;
 }
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 23854b5..ff4fda4 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -58,7 +58,7 @@ struct rtnl_link {
 	rtnl_doit_func		doit;
 	rtnl_dumpit_func	dumpit;
 	rtnl_calcit_func 	calcit;
-};
+} __no_const;
 
 static DEFINE_MUTEX(rtnl_mutex);
 
@@ -299,10 +299,13 @@ int __rtnl_link_register(struct rtnl_link_ops *ops)
 	if (rtnl_link_ops_get(ops->kind))
 		return -EEXIST;
 
-	if (!ops->dellink)
-		ops->dellink = unregister_netdevice_queue;
+	if (!ops->dellink) {
+		pax_open_kernel();
+		*(void **)&ops->dellink = unregister_netdevice_queue;
+		pax_close_kernel();
+	}
 
-	list_add_tail(&ops->list, &link_ops);
+	pax_list_add_tail((struct list_head *)&ops->list, &link_ops);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(__rtnl_link_register);
@@ -349,7 +352,7 @@ void __rtnl_link_unregister(struct rtnl_link_ops *ops)
 	for_each_net(net) {
 		__rtnl_kill_links(net, ops);
 	}
-	list_del(&ops->list);
+	pax_list_del((struct list_head *)&ops->list);
 }
 EXPORT_SYMBOL_GPL(__rtnl_link_unregister);
 
diff --git a/net/core/scm.c b/net/core/scm.c
index 2dc6cda..2159524 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -226,7 +226,7 @@ EXPORT_SYMBOL(__scm_send);
 int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
 {
 	struct cmsghdr __user *cm
-		= (__force struct cmsghdr __user *)msg->msg_control;
+		= (struct cmsghdr __force_user *)msg->msg_control;
 	struct cmsghdr cmhdr;
 	int cmlen = CMSG_LEN(len);
 	int err;
@@ -249,7 +249,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
 	err = -EFAULT;
 	if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
 		goto out;
-	if (copy_to_user(CMSG_DATA(cm), data, cmlen - sizeof(struct cmsghdr)))
+	if (copy_to_user((void __force_user *)CMSG_DATA((void __force_kernel *)cm), data, cmlen - sizeof(struct cmsghdr)))
 		goto out;
 	cmlen = CMSG_SPACE(len);
 	if (msg->msg_controllen < cmlen)
@@ -265,7 +265,7 @@ EXPORT_SYMBOL(put_cmsg);
 void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
 {
 	struct cmsghdr __user *cm
-		= (__force struct cmsghdr __user*)msg->msg_control;
+		= (struct cmsghdr __force_user *)msg->msg_control;
 
 	int fdmax = 0;
 	int fdnum = scm->fp->count;
@@ -285,7 +285,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
 	if (fdnum < fdmax)
 		fdmax = fdnum;
 
-	for (i=0, cmfptr=(__force int __user *)CMSG_DATA(cm); i<fdmax;
+	for (i=0, cmfptr=(int __force_user *)CMSG_DATA((void __force_kernel *)cm); i<fdmax;
 	     i++, cmfptr++)
 	{
 		struct socket *sock;
diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
index e61a8bb..6a2f13c 100644
--- a/net/core/secure_seq.c
+++ b/net/core/secure_seq.c
@@ -12,12 +12,10 @@
 
 static u32 net_secret[MD5_MESSAGE_BYTES / 4] ____cacheline_aligned;
 
-static int __init net_secret_init(void)
+void net_secret_init(void)
 {
 	get_random_bytes(net_secret, sizeof(net_secret));
-	return 0;
 }
-late_initcall(net_secret_init);
 
 #ifdef CONFIG_INET
 static u32 seq_scale(u32 seq)
diff --git a/net/core/sock.c b/net/core/sock.c
index 1432266..1a0d4a1 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -390,7 +390,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 	struct sk_buff_head *list = &sk->sk_receive_queue;
 
 	if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		trace_sock_rcvqueue_full(sk, skb);
 		return -ENOMEM;
 	}
@@ -400,7 +400,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 		return err;
 
 	if (!sk_rmem_schedule(sk, skb, skb->truesize)) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		return -ENOBUFS;
 	}
 
@@ -420,7 +420,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 	skb_dst_force(skb);
 
 	spin_lock_irqsave(&list->lock, flags);
-	skb->dropcount = atomic_read(&sk->sk_drops);
+	skb->dropcount = atomic_read_unchecked(&sk->sk_drops);
 	__skb_queue_tail(list, skb);
 	spin_unlock_irqrestore(&list->lock, flags);
 
@@ -440,7 +440,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
 	skb->dev = NULL;
 
 	if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		goto discard_and_relse;
 	}
 	if (nested)
@@ -458,7 +458,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
 		mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_);
 	} else if (sk_add_backlog(sk, skb, sk->sk_rcvbuf)) {
 		bh_unlock_sock(sk);
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		goto discard_and_relse;
 	}
 
@@ -942,12 +942,12 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		struct timeval tm;
 	} v;
 
-	int lv = sizeof(int);
-	int len;
+	unsigned int lv = sizeof(int);
+	unsigned int len;
 
 	if (get_user(len, optlen))
 		return -EFAULT;
-	if (len < 0)
+	if (len > INT_MAX)
 		return -EINVAL;
 
 	memset(&v, 0, sizeof(v));
@@ -1099,11 +1099,11 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 
 	case SO_PEERNAME:
 	{
-		char address[128];
+		char address[_K_SS_MAXSIZE];
 
 		if (sock->ops->getname(sock, (struct sockaddr *)address, &lv, 2))
 			return -ENOTCONN;
-		if (lv < len)
+		if (lv < len || sizeof address < len)
 			return -EINVAL;
 		if (copy_to_user(optval, address, len))
 			return -EFAULT;
@@ -1166,7 +1166,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 
 	if (len > lv)
 		len = lv;
-	if (copy_to_user(optval, &v, len))
+	if (len > sizeof(v) || copy_to_user(optval, &v, len))
 		return -EFAULT;
 lenout:
 	if (put_user(len, optlen))
@@ -2284,7 +2284,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 	 */
 	smp_wmb();
 	atomic_set(&sk->sk_refcnt, 1);
-	atomic_set(&sk->sk_drops, 0);
+	atomic_set_unchecked(&sk->sk_drops, 0);
 }
 EXPORT_SYMBOL(sock_init_data);
 
diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index a29e90c..922399c 100644
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -9,26 +9,33 @@
 #include <linux/inet_diag.h>
 #include <linux/sock_diag.h>
 
-static const struct sock_diag_handler *sock_diag_handlers[AF_MAX];
+static const struct sock_diag_handler *sock_diag_handlers[AF_MAX] __read_only;
 static int (*inet_rcv_compat)(struct sk_buff *skb, struct nlmsghdr *nlh);
 static DEFINE_MUTEX(sock_diag_table_mutex);
 
 int sock_diag_check_cookie(void *sk, __u32 *cookie)
 {
+#ifndef CONFIG_GRKERNSEC_HIDESYM
 	if ((cookie[0] != INET_DIAG_NOCOOKIE ||
 	     cookie[1] != INET_DIAG_NOCOOKIE) &&
 	    ((u32)(unsigned long)sk != cookie[0] ||
 	     (u32)((((unsigned long)sk) >> 31) >> 1) != cookie[1]))
 		return -ESTALE;
 	else
+#endif
 		return 0;
 }
 EXPORT_SYMBOL_GPL(sock_diag_check_cookie);
 
 void sock_diag_save_cookie(void *sk, __u32 *cookie)
 {
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	cookie[0] = 0;
+	cookie[1] = 0;
+#else
 	cookie[0] = (u32)(unsigned long)sk;
 	cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1);
+#endif
 }
 EXPORT_SYMBOL_GPL(sock_diag_save_cookie);
 
@@ -75,8 +82,11 @@ int sock_diag_register(const struct sock_diag_handler *hndl)
 	mutex_lock(&sock_diag_table_mutex);
 	if (sock_diag_handlers[hndl->family])
 		err = -EBUSY;
-	else
+	else {
+		pax_open_kernel();
 		sock_diag_handlers[hndl->family] = hndl;
+		pax_close_kernel();
+	}
 	mutex_unlock(&sock_diag_table_mutex);
 
 	return err;
@@ -92,7 +102,9 @@ void sock_diag_unregister(const struct sock_diag_handler *hnld)
 
 	mutex_lock(&sock_diag_table_mutex);
 	BUG_ON(sock_diag_handlers[family] != hnld);
+	pax_open_kernel();
 	sock_diag_handlers[family] = NULL;
+	pax_close_kernel();
 	mutex_unlock(&sock_diag_table_mutex);
 }
 EXPORT_SYMBOL_GPL(sock_diag_unregister);
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index cfdb46a..cef55e1 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -28,7 +28,7 @@ static int rps_sock_flow_sysctl(ctl_table *table, int write,
 {
 	unsigned int orig_size, size;
 	int ret, i;
-	ctl_table tmp = {
+	ctl_table_no_const tmp = {
 		.data = &size,
 		.maxlen = sizeof(size),
 		.mode = table->mode
@@ -211,13 +211,12 @@ static struct ctl_table netns_core_table[] = {
 
 static __net_init int sysctl_core_net_init(struct net *net)
 {
-	struct ctl_table *tbl;
+	ctl_table_no_const *tbl = NULL;
 
 	net->core.sysctl_somaxconn = SOMAXCONN;
 
-	tbl = netns_core_table;
 	if (!net_eq(net, &init_net)) {
-		tbl = kmemdup(tbl, sizeof(netns_core_table), GFP_KERNEL);
+		tbl = kmemdup(netns_core_table, sizeof(netns_core_table), GFP_KERNEL);
 		if (tbl == NULL)
 			goto err_dup;
 
@@ -227,17 +226,16 @@ static __net_init int sysctl_core_net_init(struct net *net)
 		if (net->user_ns != &init_user_ns) {
 			tbl[0].procname = NULL;
 		}
-	}
-
-	net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
+		net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
+	} else
+		net->core.sysctl_hdr = register_net_sysctl(net, "net/core", netns_core_table);
 	if (net->core.sysctl_hdr == NULL)
 		goto err_reg;
 
 	return 0;
 
 err_reg:
-	if (tbl != netns_core_table)
-		kfree(tbl);
+	kfree(tbl);
 err_dup:
 	return -ENOMEM;
 }
@@ -252,7 +250,7 @@ static __net_exit void sysctl_core_net_exit(struct net *net)
 	kfree(tbl);
 }
 
-static __net_initdata struct pernet_operations sysctl_core_ops = {
+static __net_initconst struct pernet_operations sysctl_core_ops = {
 	.init = sysctl_core_net_init,
 	.exit = sysctl_core_net_exit,
 };
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index c21f200..bc4565b 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -465,6 +465,7 @@ static struct proto dn_proto = {
 	.sysctl_rmem		= sysctl_decnet_rmem,
 	.max_header		= DN_MAX_NSP_DATA_HEADER + 64,
 	.obj_size		= sizeof(struct dn_sock),
+	.slab_flags		= SLAB_USERCOPY,
 };
 
 static struct sock *dn_alloc_sock(struct net *net, struct socket *sock, gfp_t gfp)
diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c
index a55eecc..dd8428c 100644
--- a/net/decnet/sysctl_net_decnet.c
+++ b/net/decnet/sysctl_net_decnet.c
@@ -174,7 +174,7 @@ static int dn_node_address_handler(ctl_table *table, int write,
 
 	if (len > *lenp) len = *lenp;
 
-	if (copy_to_user(buffer, addr, len))
+	if (len > sizeof addr || copy_to_user(buffer, addr, len))
 		return -EFAULT;
 
 	*lenp = len;
@@ -237,7 +237,7 @@ static int dn_def_dev_handler(ctl_table *table, int write,
 
 	if (len > *lenp) len = *lenp;
 
-	if (copy_to_user(buffer, devname, len))
+	if (len > sizeof devname || copy_to_user(buffer, devname, len))
 		return -EFAULT;
 
 	*lenp = len;
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index c929d9c..df10cde 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -115,6 +115,7 @@
 #include <net/inet_common.h>
 #include <net/xfrm.h>
 #include <net/net_namespace.h>
+#include <net/secure_seq.h>
 #ifdef CONFIG_IP_MROUTE
 #include <linux/mroute.h>
 #endif
@@ -263,8 +264,10 @@ void build_ehash_secret(void)
 		get_random_bytes(&rnd, sizeof(rnd));
 	} while (rnd == 0);
 
-	if (cmpxchg(&inet_ehash_secret, 0, rnd) == 0)
+	if (cmpxchg(&inet_ehash_secret, 0, rnd) == 0) {
 		get_random_bytes(&ipv6_hash_secret, sizeof(ipv6_hash_secret));
+		net_secret_init();
+	}
 }
 EXPORT_SYMBOL(build_ehash_secret);
 
@@ -1699,13 +1702,9 @@ static int __init inet_init(void)
 
 	BUILD_BUG_ON(sizeof(struct inet_skb_parm) > FIELD_SIZEOF(struct sk_buff, cb));
 
-	sysctl_local_reserved_ports = kzalloc(65536 / 8, GFP_KERNEL);
-	if (!sysctl_local_reserved_ports)
-		goto out;
-
 	rc = proto_register(&tcp_prot, 1);
 	if (rc)
-		goto out_free_reserved_ports;
+		goto out;
 
 	rc = proto_register(&udp_prot, 1);
 	if (rc)
@@ -1814,8 +1813,6 @@ out_unregister_udp_proto:
 	proto_unregister(&udp_prot);
 out_unregister_tcp_proto:
 	proto_unregister(&tcp_prot);
-out_free_reserved_ports:
-	kfree(sysctl_local_reserved_ports);
 	goto out;
 }
 
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 2e7f194..0fa4d6d 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -420,7 +420,7 @@ static void ah4_err(struct sk_buff *skb, u32 info)
 		return;
 
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH) {
-		atomic_inc(&flow_cache_genid);
+		atomic_inc_unchecked(&flow_cache_genid);
 		rt_genid_bump(net);
 
 		ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_AH, 0);
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index c6287cd..e9bc96a 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1992,7 +1992,7 @@ static int ipv4_doint_and_flush(ctl_table *ctl, int write,
 #define DEVINET_SYSCTL_FLUSHING_ENTRY(attr, name) \
 	DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, ipv4_doint_and_flush)
 
-static struct devinet_sysctl_table {
+static const struct devinet_sysctl_table {
 	struct ctl_table_header *sysctl_header;
 	struct ctl_table devinet_vars[__IPV4_DEVCONF_MAX];
 } devinet_sysctl = {
@@ -2110,7 +2110,7 @@ static __net_init int devinet_init_net(struct net *net)
 	int err;
 	struct ipv4_devconf *all, *dflt;
 #ifdef CONFIG_SYSCTL
-	struct ctl_table *tbl = ctl_forward_entry;
+	ctl_table_no_const *tbl = NULL;
 	struct ctl_table_header *forw_hdr;
 #endif
 
@@ -2128,7 +2128,7 @@ static __net_init int devinet_init_net(struct net *net)
 			goto err_alloc_dflt;
 
 #ifdef CONFIG_SYSCTL
-		tbl = kmemdup(tbl, sizeof(ctl_forward_entry), GFP_KERNEL);
+		tbl = kmemdup(ctl_forward_entry, sizeof(ctl_forward_entry), GFP_KERNEL);
 		if (tbl == NULL)
 			goto err_alloc_ctl;
 
@@ -2148,7 +2148,10 @@ static __net_init int devinet_init_net(struct net *net)
 		goto err_reg_dflt;
 
 	err = -ENOMEM;
-	forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
+	if (!net_eq(net, &init_net))
+		forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
+	else
+		forw_hdr = register_net_sysctl(net, "net/ipv4", ctl_forward_entry);
 	if (forw_hdr == NULL)
 		goto err_reg_ctl;
 	net->ipv4.forw_hdr = forw_hdr;
@@ -2164,8 +2167,7 @@ err_reg_ctl:
 err_reg_dflt:
 	__devinet_sysctl_unregister(all);
 err_reg_all:
-	if (tbl != ctl_forward_entry)
-		kfree(tbl);
+	kfree(tbl);
 err_alloc_ctl:
 #endif
 	if (dflt != &ipv4_devconf_dflt)
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 4cfe34d..a6ba66e 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -503,7 +503,7 @@ static void esp4_err(struct sk_buff *skb, u32 info)
 		return;
 
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH) {
-		atomic_inc(&flow_cache_genid);
+		atomic_inc_unchecked(&flow_cache_genid);
 		rt_genid_bump(net);
 
 		ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_ESP, 0);
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index eb4bb12..ee4ec7d 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1017,12 +1017,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 		fib_sync_up(dev);
 #endif
-		atomic_inc(&net->ipv4.dev_addr_genid);
+		atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
 		rt_cache_flush(dev_net(dev));
 		break;
 	case NETDEV_DOWN:
 		fib_del_ifaddr(ifa, NULL);
-		atomic_inc(&net->ipv4.dev_addr_genid);
+		atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
 		if (ifa->ifa_dev->ifa_list == NULL) {
 			/* Last address was deleted from this interface.
 			 * Disable IP.
@@ -1058,7 +1058,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 		fib_sync_up(dev);
 #endif
-		atomic_inc(&net->ipv4.dev_addr_genid);
+		atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
 		rt_cache_flush(net);
 		break;
 	case NETDEV_DOWN:
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 8f6cb7a..34507f9 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -765,7 +765,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh)
 	nh->nh_saddr = inet_select_addr(nh->nh_dev,
 					nh->nh_gw,
 					nh->nh_parent->fib_scope);
-	nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid);
+	nh->nh_saddr_genid = atomic_read_unchecked(&net->ipv4.dev_addr_genid);
 
 	return nh->nh_saddr;
 }
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 786d97a..1889c0d 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -37,7 +37,7 @@ struct local_ports sysctl_local_ports __read_mostly = {
 	.range = { 32768, 61000 },
 };
 
-unsigned long *sysctl_local_reserved_ports;
+unsigned long sysctl_local_reserved_ports[65536 / 8 / sizeof(unsigned long)];
 EXPORT_SYMBOL(sysctl_local_reserved_ports);
 
 void inet_get_local_port_range(int *low, int *high)
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 6af375a..c493c74 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -18,12 +18,15 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/wait.h>
+#include <linux/security.h>
 
 #include <net/inet_connection_sock.h>
 #include <net/inet_hashtables.h>
 #include <net/secure_seq.h>
 #include <net/ip.h>
 
+extern void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet);
+
 /*
  * Allocate and initialize a new local port bind bucket.
  * The bindhash mutex for snum's hash chain must be held here.
@@ -554,6 +557,8 @@ ok:
 			twrefcnt += inet_twsk_bind_unhash(tw, hinfo);
 		spin_unlock(&head->lock);
 
+		gr_update_task_in_ip_table(current, inet_sk(sk));
+
 		if (tw) {
 			inet_twsk_deschedule(tw, death_row);
 			while (twrefcnt) {
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index 000e3d2..5472da3 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -503,8 +503,8 @@ relookup:
 	if (p) {
 		p->daddr = *daddr;
 		atomic_set(&p->refcnt, 1);
-		atomic_set(&p->rid, 0);
-		atomic_set(&p->ip_id_count,
+		atomic_set_unchecked(&p->rid, 0);
+		atomic_set_unchecked(&p->ip_id_count,
 				(daddr->family == AF_INET) ?
 					secure_ip_id(daddr->addr.a4) :
 					secure_ipv6_id(daddr->addr.a6));
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 52c273e..579060b 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -311,7 +311,7 @@ static inline int ip_frag_too_far(struct ipq *qp)
 		return 0;
 
 	start = qp->rid;
-	end = atomic_inc_return(&peer->rid);
+	end = atomic_inc_return_unchecked(&peer->rid);
 	qp->rid = end;
 
 	rc = qp->q.fragments && (end - start) > max;
@@ -788,12 +788,11 @@ static struct ctl_table ip4_frags_ctl_table[] = {
 
 static int __net_init ip4_frags_ns_ctl_register(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 
-	table = ip4_frags_ns_ctl_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
+		table = kmemdup(ip4_frags_ns_ctl_table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
 		if (table == NULL)
 			goto err_alloc;
 
@@ -804,9 +803,10 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
 		/* Don't export sysctls to unprivileged users */
 		if (net->user_ns != &init_user_ns)
 			table[0].procname = NULL;
-	}
+		hdr = register_net_sysctl(net, "net/ipv4", table);
+	} else
+		hdr = register_net_sysctl(net, "net/ipv4", ip4_frags_ns_ctl_table);
 
-	hdr = register_net_sysctl(net, "net/ipv4", table);
 	if (hdr == NULL)
 		goto err_reg;
 
@@ -814,8 +814,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 91d66db..4af7d99 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -124,7 +124,7 @@ static bool log_ecn_error = true;
 module_param(log_ecn_error, bool, 0644);
 MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
 
-static struct rtnl_link_ops ipgre_link_ops __read_mostly;
+static struct rtnl_link_ops ipgre_link_ops;
 static int ipgre_tunnel_init(struct net_device *dev);
 static void ipgre_tunnel_setup(struct net_device *dev);
 static int ipgre_tunnel_bind_dev(struct net_device *dev);
@@ -1823,7 +1823,7 @@ static const struct nla_policy ipgre_policy[IFLA_GRE_MAX + 1] = {
 	[IFLA_GRE_PMTUDISC]	= { .type = NLA_U8 },
 };
 
-static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
+static struct rtnl_link_ops ipgre_link_ops = {
 	.kind		= "gre",
 	.maxtype	= IFLA_GRE_MAX,
 	.policy		= ipgre_policy,
@@ -1836,7 +1836,7 @@ static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
 	.fill_info	= ipgre_fill_info,
 };
 
-static struct rtnl_link_ops ipgre_tap_ops __read_mostly = {
+static struct rtnl_link_ops ipgre_tap_ops = {
 	.kind		= "gretap",
 	.maxtype	= IFLA_GRE_MAX,
 	.policy		= ipgre_policy,
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index d9c4f11..02b82dbc 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -1152,7 +1152,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
 		len = min_t(unsigned int, len, opt->optlen);
 		if (put_user(len, optlen))
 			return -EFAULT;
-		if (copy_to_user(optval, opt->__data, len))
+		if ((len > (sizeof(optbuf) - sizeof(struct ip_options))) ||
+		    copy_to_user(optval, opt->__data, len))
 			return -EFAULT;
 		return 0;
 	}
@@ -1283,7 +1284,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
 		if (sk->sk_type != SOCK_STREAM)
 			return -ENOPROTOOPT;
 
-		msg.msg_control = optval;
+		msg.msg_control = (void __force_kernel *)optval;
 		msg.msg_controllen = len;
 		msg.msg_flags = flags;
 
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index c3a4233..1412161 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -47,7 +47,7 @@
 #define HASH_SIZE  16
 #define HASH(addr) (((__force u32)addr^((__force u32)addr>>4))&(HASH_SIZE-1))
 
-static struct rtnl_link_ops vti_link_ops __read_mostly;
+static struct rtnl_link_ops vti_link_ops;
 
 static int vti_net_id __read_mostly;
 struct vti_net {
@@ -886,7 +886,7 @@ static const struct nla_policy vti_policy[IFLA_VTI_MAX + 1] = {
 	[IFLA_VTI_REMOTE]	= { .len = FIELD_SIZEOF(struct iphdr, daddr) },
 };
 
-static struct rtnl_link_ops vti_link_ops __read_mostly = {
+static struct rtnl_link_ops vti_link_ops = {
 	.kind		= "vti",
 	.maxtype	= IFLA_VTI_MAX,
 	.policy		= vti_policy,
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index f01d1b1..8fe03ad 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -48,7 +48,7 @@ static void ipcomp4_err(struct sk_buff *skb, u32 info)
 		return;
 
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH) {
-		atomic_inc(&flow_cache_genid);
+		atomic_inc_unchecked(&flow_cache_genid);
 		rt_genid_bump(net);
 
 		ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_COMP, 0);
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index bf6c5cf..ab2e9c6 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -323,7 +323,7 @@ static int __init ic_devinet_ioctl(unsigned int cmd, struct ifreq *arg)
 
 	mm_segment_t oldfs = get_fs();
 	set_fs(get_ds());
-	res = devinet_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
+	res = devinet_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
 	set_fs(oldfs);
 	return res;
 }
@@ -334,7 +334,7 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
 
 	mm_segment_t oldfs = get_fs();
 	set_fs(get_ds());
-	res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
+	res = dev_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
 	set_fs(oldfs);
 	return res;
 }
@@ -345,7 +345,7 @@ static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg)
 
 	mm_segment_t oldfs = get_fs();
 	set_fs(get_ds());
-	res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg);
+	res = ip_rt_ioctl(&init_net, cmd, (void __force_user *) arg);
 	set_fs(oldfs);
 	return res;
 }
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 8f024d4..8b3500c 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -138,7 +138,7 @@ struct ipip_net {
 static int ipip_tunnel_init(struct net_device *dev);
 static void ipip_tunnel_setup(struct net_device *dev);
 static void ipip_dev_free(struct net_device *dev);
-static struct rtnl_link_ops ipip_link_ops __read_mostly;
+static struct rtnl_link_ops ipip_link_ops;
 
 static struct rtnl_link_stats64 *ipip_get_stats64(struct net_device *dev,
 						  struct rtnl_link_stats64 *tot)
@@ -974,7 +974,7 @@ static const struct nla_policy ipip_policy[IFLA_IPTUN_MAX + 1] = {
 	[IFLA_IPTUN_PMTUDISC]		= { .type = NLA_U8 },
 };
 
-static struct rtnl_link_ops ipip_link_ops __read_mostly = {
+static struct rtnl_link_ops ipip_link_ops = {
 	.kind		= "ipip",
 	.maxtype	= IFLA_IPTUN_MAX,
 	.policy		= ipip_policy,
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 7dc6a97..229c61b 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -879,14 +879,14 @@ static int compat_table_info(const struct xt_table_info *info,
 #endif
 
 static int get_info(struct net *net, void __user *user,
-                    const int *len, int compat)
+                    int len, int compat)
 {
 	char name[XT_TABLE_MAXNAMELEN];
 	struct xt_table *t;
 	int ret;
 
-	if (*len != sizeof(struct arpt_getinfo)) {
-		duprintf("length %u != %Zu\n", *len,
+	if (len != sizeof(struct arpt_getinfo)) {
+		duprintf("length %u != %Zu\n", len,
 			 sizeof(struct arpt_getinfo));
 		return -EINVAL;
 	}
@@ -923,7 +923,7 @@ static int get_info(struct net *net, void __user *user,
 		info.size = private->size;
 		strcpy(info.name, name);
 
-		if (copy_to_user(user, &info, *len) != 0)
+		if (copy_to_user(user, &info, len) != 0)
 			ret = -EFAULT;
 		else
 			ret = 0;
@@ -1682,7 +1682,7 @@ static int compat_do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user,
 
 	switch (cmd) {
 	case ARPT_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 1);
+		ret = get_info(sock_net(sk), user, *len, 1);
 		break;
 	case ARPT_SO_GET_ENTRIES:
 		ret = compat_get_entries(sock_net(sk), user, len);
@@ -1727,7 +1727,7 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 
 	switch (cmd) {
 	case ARPT_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 0);
+		ret = get_info(sock_net(sk), user, *len, 0);
 		break;
 
 	case ARPT_SO_GET_ENTRIES:
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 3efcf87..5247916 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -1068,14 +1068,14 @@ static int compat_table_info(const struct xt_table_info *info,
 #endif
 
 static int get_info(struct net *net, void __user *user,
-                    const int *len, int compat)
+                    int len, int compat)
 {
 	char name[XT_TABLE_MAXNAMELEN];
 	struct xt_table *t;
 	int ret;
 
-	if (*len != sizeof(struct ipt_getinfo)) {
-		duprintf("length %u != %zu\n", *len,
+	if (len != sizeof(struct ipt_getinfo)) {
+		duprintf("length %u != %zu\n", len,
 			 sizeof(struct ipt_getinfo));
 		return -EINVAL;
 	}
@@ -1112,7 +1112,7 @@ static int get_info(struct net *net, void __user *user,
 		info.size = private->size;
 		strcpy(info.name, name);
 
-		if (copy_to_user(user, &info, *len) != 0)
+		if (copy_to_user(user, &info, len) != 0)
 			ret = -EFAULT;
 		else
 			ret = 0;
@@ -1966,7 +1966,7 @@ compat_do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 
 	switch (cmd) {
 	case IPT_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 1);
+		ret = get_info(sock_net(sk), user, *len, 1);
 		break;
 	case IPT_SO_GET_ENTRIES:
 		ret = compat_get_entries(sock_net(sk), user, len);
@@ -2013,7 +2013,7 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 
 	switch (cmd) {
 	case IPT_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 0);
+		ret = get_info(sock_net(sk), user, *len, 0);
 		break;
 
 	case IPT_SO_GET_ENTRIES:
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 2e91006..f084394 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -844,7 +844,7 @@ static void ping_format_sock(struct sock *sp, struct seq_file *f,
 		from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
 		0, sock_i_ino(sp),
 		atomic_read(&sp->sk_refcnt), sp,
-		atomic_read(&sp->sk_drops), len);
+		atomic_read_unchecked(&sp->sk_drops), len);
 }
 
 static int ping_seq_show(struct seq_file *seq, void *v)
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index dd44e0a..06dcca4 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -309,7 +309,7 @@ static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
 int raw_rcv(struct sock *sk, struct sk_buff *skb)
 {
 	if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
@@ -745,16 +745,20 @@ static int raw_init(struct sock *sk)
 
 static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
 {
+	struct icmp_filter filter;
+
 	if (optlen > sizeof(struct icmp_filter))
 		optlen = sizeof(struct icmp_filter);
-	if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))
+	if (copy_from_user(&filter, optval, optlen))
 		return -EFAULT;
+	raw_sk(sk)->filter = filter;
 	return 0;
 }
 
 static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
 {
 	int len, ret = -EFAULT;
+	struct icmp_filter filter;
 
 	if (get_user(len, optlen))
 		goto out;
@@ -764,8 +768,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o
 	if (len > sizeof(struct icmp_filter))
 		len = sizeof(struct icmp_filter);
 	ret = -EFAULT;
-	if (put_user(len, optlen) ||
-	    copy_to_user(optval, &raw_sk(sk)->filter, len))
+	filter = raw_sk(sk)->filter;
+	if (put_user(len, optlen) || len > sizeof filter || copy_to_user(optval, &filter, len))
 		goto out;
 	ret = 0;
 out:	return ret;
@@ -994,7 +998,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
 		0, 0L, 0,
 		from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
 		0, sock_i_ino(sp),
-		atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
+		atomic_read(&sp->sk_refcnt), sp, atomic_read_unchecked(&sp->sk_drops));
 }
 
 static int raw_seq_show(struct seq_file *seq, void *v)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 6e28514..5e1b055 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2553,34 +2553,34 @@ static struct ctl_table ipv4_route_flush_table[] = {
 		.maxlen		= sizeof(int),
 		.mode		= 0200,
 		.proc_handler	= ipv4_sysctl_rtcache_flush,
+		.extra1		= &init_net,
 	},
 	{ },
 };
 
 static __net_init int sysctl_route_net_init(struct net *net)
 {
-	struct ctl_table *tbl;
+	ctl_table_no_const *tbl = NULL;
 
-	tbl = ipv4_route_flush_table;
 	if (!net_eq(net, &init_net)) {
-		tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL);
+		tbl = kmemdup(ipv4_route_flush_table, sizeof(ipv4_route_flush_table), GFP_KERNEL);
 		if (tbl == NULL)
 			goto err_dup;
 
 		/* Don't export sysctls to unprivileged users */
 		if (net->user_ns != &init_user_ns)
 			tbl[0].procname = NULL;
-	}
-	tbl[0].extra1 = net;
+		tbl[0].extra1 = net;
+		net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
+	} else
+		net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", ipv4_route_flush_table);
 
-	net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
 	if (net->ipv4.route_hdr == NULL)
 		goto err_reg;
 	return 0;
 
 err_reg:
-	if (tbl != ipv4_route_flush_table)
-		kfree(tbl);
+	kfree(tbl);
 err_dup:
 	return -ENOMEM;
 }
@@ -2603,7 +2603,7 @@ static __net_initdata struct pernet_operations sysctl_route_ops = {
 
 static __net_init int rt_genid_init(struct net *net)
 {
-	atomic_set(&net->rt_genid, 0);
+	atomic_set_unchecked(&net->rt_genid, 0);
 	get_random_bytes(&net->ipv4.dev_addr_genid,
 			 sizeof(net->ipv4.dev_addr_genid));
 	return 0;
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 960fd29..d55bf64 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -55,7 +55,7 @@ static int ipv4_local_port_range(ctl_table *table, int write,
 {
 	int ret;
 	int range[2];
-	ctl_table tmp = {
+	ctl_table_no_const tmp = {
 		.data = &range,
 		.maxlen = sizeof(range),
 		.mode = table->mode,
@@ -108,7 +108,7 @@ static int ipv4_ping_group_range(ctl_table *table, int write,
 	int ret;
 	gid_t urange[2];
 	kgid_t low, high;
-	ctl_table tmp = {
+	ctl_table_no_const tmp = {
 		.data = &urange,
 		.maxlen = sizeof(urange),
 		.mode = table->mode,
@@ -139,7 +139,7 @@ static int proc_tcp_congestion_control(ctl_table *ctl, int write,
 				       void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	char val[TCP_CA_NAME_MAX];
-	ctl_table tbl = {
+	ctl_table_no_const tbl = {
 		.data = val,
 		.maxlen = TCP_CA_NAME_MAX,
 	};
@@ -158,7 +158,7 @@ static int proc_tcp_available_congestion_control(ctl_table *ctl,
 						 void __user *buffer, size_t *lenp,
 						 loff_t *ppos)
 {
-	ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, };
+	ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX, };
 	int ret;
 
 	tbl.data = kmalloc(tbl.maxlen, GFP_USER);
@@ -175,7 +175,7 @@ static int proc_allowed_congestion_control(ctl_table *ctl,
 					   void __user *buffer, size_t *lenp,
 					   loff_t *ppos)
 {
-	ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
+	ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX };
 	int ret;
 
 	tbl.data = kmalloc(tbl.maxlen, GFP_USER);
@@ -201,15 +201,17 @@ static int ipv4_tcp_mem(ctl_table *ctl, int write,
 	struct mem_cgroup *memcg;
 #endif
 
-	ctl_table tmp = {
+	ctl_table_no_const tmp = {
 		.data = &vec,
 		.maxlen = sizeof(vec),
 		.mode = ctl->mode,
 	};
 
 	if (!write) {
-		ctl->data = &net->ipv4.sysctl_tcp_mem;
-		return proc_doulongvec_minmax(ctl, write, buffer, lenp, ppos);
+		ctl_table_no_const tcp_mem = *ctl;
+
+		tcp_mem.data = &net->ipv4.sysctl_tcp_mem;
+		return proc_doulongvec_minmax(&tcp_mem, write, buffer, lenp, ppos);
 	}
 
 	ret = proc_doulongvec_minmax(&tmp, write, buffer, lenp, ppos);
@@ -236,7 +238,7 @@ static int ipv4_tcp_mem(ctl_table *ctl, int write,
 static int proc_tcp_fastopen_key(ctl_table *ctl, int write, void __user *buffer,
 				 size_t *lenp, loff_t *ppos)
 {
-	ctl_table tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
+	ctl_table_no_const tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
 	struct tcp_fastopen_context *ctxt;
 	int ret;
 	u32  user_key[4]; /* 16 bytes, matching TCP_FASTOPEN_KEY_LENGTH */
@@ -477,7 +479,7 @@ static struct ctl_table ipv4_table[] = {
 	},
 	{
 		.procname	= "ip_local_reserved_ports",
-		.data		= NULL, /* initialized in sysctl_ipv4_init */
+		.data		= sysctl_local_reserved_ports,
 		.maxlen		= 65536,
 		.mode		= 0644,
 		.proc_handler	= proc_do_large_bitmap,
@@ -856,11 +858,10 @@ static struct ctl_table ipv4_net_table[] = {
 
 static __net_init int ipv4_sysctl_init_net(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 
-	table = ipv4_net_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
+		table = kmemdup(ipv4_net_table, sizeof(ipv4_net_table), GFP_KERNEL);
 		if (table == NULL)
 			goto err_alloc;
 
@@ -895,15 +896,17 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
 
 	tcp_init_mem(net);
 
-	net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
+	if (!net_eq(net, &init_net))
+		net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
+	else
+		net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", ipv4_net_table);
 	if (net->ipv4.ipv4_hdr == NULL)
 		goto err_reg;
 
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
@@ -925,16 +928,6 @@ static __net_initdata struct pernet_operations ipv4_sysctl_ops = {
 static __init int sysctl_ipv4_init(void)
 {
 	struct ctl_table_header *hdr;
-	struct ctl_table *i;
-
-	for (i = ipv4_table; i->procname; i++) {
-		if (strcmp(i->procname, "ip_local_reserved_ports") == 0) {
-			i->data = sysctl_local_reserved_ports;
-			break;
-		}
-	}
-	if (!i->procname)
-		return -EINVAL;
 
 	hdr = register_net_sysctl(&init_net, "net/ipv4", ipv4_table);
 	if (hdr == NULL)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 13b9c08..d33a8d0 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4724,7 +4724,7 @@ static struct sk_buff *tcp_collapse_one(struct sock *sk, struct sk_buff *skb,
  * simplifies code)
  */
 static void
-tcp_collapse(struct sock *sk, struct sk_buff_head *list,
+__intentional_overflow(5,6) tcp_collapse(struct sock *sk, struct sk_buff_head *list,
 	     struct sk_buff *head, struct sk_buff *tail,
 	     u32 start, u32 end)
 {
@@ -5838,6 +5838,7 @@ discard:
 	    tcp_paws_reject(&tp->rx_opt, 0))
 		goto discard_and_undo;
 
+#ifndef CONFIG_GRKERNSEC_NO_SIMULT_CONNECT
 	if (th->syn) {
 		/* We see SYN without ACK. It is attempt of
 		 * simultaneous connect with crossed SYNs.
@@ -5888,6 +5889,7 @@ discard:
 		goto discard;
 #endif
 	}
+#endif
 	/* "fifth, if neither of the SYN or RST bits is set then
 	 * drop the segment and return."
 	 */
@@ -5932,7 +5934,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 			goto discard;
 
 		if (th->syn) {
-			if (th->fin)
+			if (th->fin || th->urg || th->psh)
 				goto discard;
 			if (icsk->icsk_af_ops->conn_request(sk, skb) < 0)
 				return 1;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index d09203c..fd5cc91 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -90,6 +90,10 @@ int sysctl_tcp_low_latency __read_mostly;
 EXPORT_SYMBOL(sysctl_tcp_low_latency);
 
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 #ifdef CONFIG_TCP_MD5SIG
 static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
 			       __be32 daddr, __be32 saddr, const struct tcphdr *th);
@@ -1897,6 +1901,9 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
 	return 0;
 
 reset:
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	if (!grsec_enable_blackhole)
+#endif
 	tcp_v4_send_reset(rsk, skb);
 discard:
 	kfree_skb(skb);
@@ -1996,12 +2003,19 @@ int tcp_v4_rcv(struct sk_buff *skb)
 	TCP_SKB_CB(skb)->sacked	 = 0;
 
 	sk = __inet_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
-	if (!sk)
+	if (!sk) {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		ret = 1;
+#endif
 		goto no_tcp_socket;
-
+	}
 process:
-	if (sk->sk_state == TCP_TIME_WAIT)
+	if (sk->sk_state == TCP_TIME_WAIT) {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		ret = 2;
+#endif
 		goto do_time_wait;
+	}
 
 	if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) {
 		NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
@@ -2052,6 +2066,10 @@ no_tcp_socket:
 bad_packet:
 		TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
 	} else {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		if (!grsec_enable_blackhole || (ret == 1 &&
+		    (skb->dev->flags & IFF_LOOPBACK)))
+#endif
 		tcp_v4_send_reset(NULL, skb);
 	}
 
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 2f672e7..b8895e9 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -27,6 +27,10 @@
 #include <net/inet_common.h>
 #include <net/xfrm.h>
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 int sysctl_tcp_syncookies __read_mostly = 1;
 EXPORT_SYMBOL(sysctl_tcp_syncookies);
 
@@ -749,7 +753,10 @@ embryonic_reset:
 		 * avoid becoming vulnerable to outside attack aiming at
 		 * resetting legit local connections.
 		 */
-		req->rsk_ops->send_reset(sk, skb);
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		if (!grsec_enable_blackhole)
+#endif
+			req->rsk_ops->send_reset(sk, skb);
 	} else if (fastopen) { /* received a valid RST pkt */
 		reqsk_fastopen_remove(sk, req, true);
 		tcp_reset(sk);
diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
index d4943f6..e7a74a5 100644
--- a/net/ipv4/tcp_probe.c
+++ b/net/ipv4/tcp_probe.c
@@ -204,7 +204,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf,
 		if (cnt + width >= len)
 			break;
 
-		if (copy_to_user(buf + cnt, tbuf, width))
+		if (width > sizeof tbuf || copy_to_user(buf + cnt, tbuf, width))
 			return -EFAULT;
 		cnt += width;
 	}
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index b78aac3..e18230b 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -22,6 +22,10 @@
 #include <linux/gfp.h>
 #include <net/tcp.h>
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_lastack_retries;
+#endif
+
 int sysctl_tcp_syn_retries __read_mostly = TCP_SYN_RETRIES;
 int sysctl_tcp_synack_retries __read_mostly = TCP_SYNACK_RETRIES;
 int sysctl_tcp_keepalive_time __read_mostly = TCP_KEEPALIVE_TIME;
@@ -185,6 +189,13 @@ static int tcp_write_timeout(struct sock *sk)
 		}
 	}
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	if ((sk->sk_state == TCP_LAST_ACK) &&
+	    (grsec_lastack_retries > 0) &&
+	    (grsec_lastack_retries < retry_until))
+		retry_until = grsec_lastack_retries;
+#endif
+
 	if (retransmits_timed_out(sk, retry_until,
 				  syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
 		/* Has it gone just too far? */
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 0a073a2..ddf6279 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -87,6 +87,7 @@
 #include <linux/types.h>
 #include <linux/fcntl.h>
 #include <linux/module.h>
+#include <linux/security.h>
 #include <linux/socket.h>
 #include <linux/sockios.h>
 #include <linux/igmp.h>
@@ -111,6 +112,10 @@
 #include <trace/events/skb.h>
 #include "udp_impl.h"
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 struct udp_table udp_table __read_mostly;
 EXPORT_SYMBOL(udp_table);
 
@@ -594,6 +599,9 @@ found:
 	return s;
 }
 
+extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb);
+extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr);
+
 /*
  * This routine is called by the ICMP module when it gets some
  * sort of error condition.  If err < 0 then the socket should
@@ -889,9 +897,18 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		dport = usin->sin_port;
 		if (dport == 0)
 			return -EINVAL;
+
+		err = gr_search_udp_sendmsg(sk, usin);
+		if (err)
+			return err;
 	} else {
 		if (sk->sk_state != TCP_ESTABLISHED)
 			return -EDESTADDRREQ;
+
+		err = gr_search_udp_sendmsg(sk, NULL);
+		if (err)
+			return err;
+
 		daddr = inet->inet_daddr;
 		dport = inet->inet_dport;
 		/* Open fast path for connected socket.
@@ -1133,7 +1150,7 @@ static unsigned int first_packet_length(struct sock *sk)
 		udp_lib_checksum_complete(skb)) {
 		UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
 				 IS_UDPLITE(sk));
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		__skb_unlink(skb, rcvq);
 		__skb_queue_tail(&list_kill, skb);
 	}
@@ -1219,6 +1236,10 @@ try_again:
 	if (!skb)
 		goto out;
 
+	err = gr_search_udp_recvmsg(sk, skb);
+	if (err)
+		goto out_free;
+
 	ulen = skb->len - sizeof(struct udphdr);
 	copied = len;
 	if (copied > ulen)
@@ -1252,7 +1273,7 @@ try_again:
 	if (unlikely(err)) {
 		trace_kfree_skb(skb, udp_recvmsg);
 		if (!peeked) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			UDP_INC_STATS_USER(sock_net(sk),
 					   UDP_MIB_INERRORS, is_udplite);
 		}
@@ -1535,7 +1556,7 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 
 drop:
 	UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
-	atomic_inc(&sk->sk_drops);
+	atomic_inc_unchecked(&sk->sk_drops);
 	kfree_skb(skb);
 	return -1;
 }
@@ -1554,7 +1575,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
 			skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
 
 		if (!skb1) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
 					 IS_UDPLITE(sk));
 			UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
@@ -1723,6 +1744,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 		goto csum_error;
 
 	UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
+#endif
 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
 
 	/*
@@ -2152,7 +2176,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
 		from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
 		0, sock_i_ino(sp),
 		atomic_read(&sp->sk_refcnt), sp,
-		atomic_read(&sp->sk_drops), len);
+		atomic_read_unchecked(&sp->sk_drops), len);
 }
 
 int udp4_seq_show(struct seq_file *seq, void *v)
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 9a459be..086b866 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -264,19 +264,18 @@ static struct ctl_table xfrm4_policy_table[] = {
 
 static int __net_init xfrm4_net_init(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 
-	table = xfrm4_policy_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(xfrm4_policy_table), GFP_KERNEL);
+		table = kmemdup(xfrm4_policy_table, sizeof(xfrm4_policy_table), GFP_KERNEL);
 		if (!table)
 			goto err_alloc;
 
 		table[0].data = &net->xfrm.xfrm4_dst_ops.gc_thresh;
-	}
-
-	hdr = register_net_sysctl(net, "net/ipv4", table);
+		hdr = register_net_sysctl(net, "net/ipv4", table);
+	} else
+		hdr = register_net_sysctl(net, "net/ipv4", xfrm4_policy_table);
 	if (!hdr)
 		goto err_reg;
 
@@ -284,8 +283,7 @@ static int __net_init xfrm4_net_init(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index dae802c..bfa4baa 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2274,7 +2274,7 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg)
 		p.iph.ihl = 5;
 		p.iph.protocol = IPPROTO_IPV6;
 		p.iph.ttl = 64;
-		ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
+		ifr.ifr_ifru.ifru_data = (void __force_user *)&p;
 
 		if (ops->ndo_do_ioctl) {
 			mm_segment_t oldfs = get_fs();
@@ -4410,7 +4410,7 @@ int addrconf_sysctl_forward(ctl_table *ctl, int write,
 	int *valp = ctl->data;
 	int val = *valp;
 	loff_t pos = *ppos;
-	ctl_table lctl;
+	ctl_table_no_const lctl;
 	int ret;
 
 	/*
@@ -4492,7 +4492,7 @@ int addrconf_sysctl_disable(ctl_table *ctl, int write,
 	int *valp = ctl->data;
 	int val = *valp;
 	loff_t pos = *ppos;
-	ctl_table lctl;
+	ctl_table_no_const lctl;
 	int ret;
 
 	/*
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index fff5bdd..15194fb 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -973,7 +973,7 @@ ctl_table ipv6_icmp_table_template[] = {
 
 struct ctl_table * __net_init ipv6_icmp_sysctl_init(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(ipv6_icmp_table_template,
 			sizeof(ipv6_icmp_table_template),
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 95d13c7..791fe2f 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -73,7 +73,7 @@ struct ip6gre_net {
 	struct net_device *fb_tunnel_dev;
 };
 
-static struct rtnl_link_ops ip6gre_link_ops __read_mostly;
+static struct rtnl_link_ops ip6gre_link_ops;
 static int ip6gre_tunnel_init(struct net_device *dev);
 static void ip6gre_tunnel_setup(struct net_device *dev);
 static void ip6gre_tunnel_link(struct ip6gre_net *ign, struct ip6_tnl *t);
@@ -1337,7 +1337,7 @@ static void ip6gre_fb_tunnel_init(struct net_device *dev)
 }
 
 
-static struct inet6_protocol ip6gre_protocol __read_mostly = {
+static struct inet6_protocol ip6gre_protocol = {
 	.handler     = ip6gre_rcv,
 	.err_handler = ip6gre_err,
 	.flags       = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
@@ -1671,7 +1671,7 @@ static const struct nla_policy ip6gre_policy[IFLA_GRE_MAX + 1] = {
 	[IFLA_GRE_FLAGS]       = { .type = NLA_U32 },
 };
 
-static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
+static struct rtnl_link_ops ip6gre_link_ops = {
 	.kind		= "ip6gre",
 	.maxtype	= IFLA_GRE_MAX,
 	.policy		= ip6gre_policy,
@@ -1684,7 +1684,7 @@ static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
 	.fill_info	= ip6gre_fill_info,
 };
 
-static struct rtnl_link_ops ip6gre_tap_ops __read_mostly = {
+static struct rtnl_link_ops ip6gre_tap_ops = {
 	.kind		= "ip6gretap",
 	.maxtype	= IFLA_GRE_MAX,
 	.policy		= ip6gre_policy,
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index fff83cb..82d49dd 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -87,7 +87,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
 
 static int ip6_tnl_dev_init(struct net_device *dev);
 static void ip6_tnl_dev_setup(struct net_device *dev);
-static struct rtnl_link_ops ip6_link_ops __read_mostly;
+static struct rtnl_link_ops ip6_link_ops;
 
 static int ip6_tnl_net_id __read_mostly;
 struct ip6_tnl_net {
@@ -1684,7 +1684,7 @@ static const struct nla_policy ip6_tnl_policy[IFLA_IPTUN_MAX + 1] = {
 	[IFLA_IPTUN_PROTO]		= { .type = NLA_U8 },
 };
 
-static struct rtnl_link_ops ip6_link_ops __read_mostly = {
+static struct rtnl_link_ops ip6_link_ops = {
 	.kind		= "ip6tnl",
 	.maxtype	= IFLA_IPTUN_MAX,
 	.policy		= ip6_tnl_policy,
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index d1e2e8e..51c19ae 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -991,7 +991,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
 		if (sk->sk_type != SOCK_STREAM)
 			return -ENOPROTOOPT;
 
-		msg.msg_control = optval;
+		msg.msg_control = (void __force_kernel *)optval;
 		msg.msg_controllen = len;
 		msg.msg_flags = flags;
 
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 341b54a..591e8ed 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -1076,14 +1076,14 @@ static int compat_table_info(const struct xt_table_info *info,
 #endif
 
 static int get_info(struct net *net, void __user *user,
-                    const int *len, int compat)
+                    int len, int compat)
 {
 	char name[XT_TABLE_MAXNAMELEN];
 	struct xt_table *t;
 	int ret;
 
-	if (*len != sizeof(struct ip6t_getinfo)) {
-		duprintf("length %u != %zu\n", *len,
+	if (len != sizeof(struct ip6t_getinfo)) {
+		duprintf("length %u != %zu\n", len,
 			 sizeof(struct ip6t_getinfo));
 		return -EINVAL;
 	}
@@ -1120,7 +1120,7 @@ static int get_info(struct net *net, void __user *user,
 		info.size = private->size;
 		strcpy(info.name, name);
 
-		if (copy_to_user(user, &info, *len) != 0)
+		if (copy_to_user(user, &info, len) != 0)
 			ret = -EFAULT;
 		else
 			ret = 0;
@@ -1974,7 +1974,7 @@ compat_do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 
 	switch (cmd) {
 	case IP6T_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 1);
+		ret = get_info(sock_net(sk), user, *len, 1);
 		break;
 	case IP6T_SO_GET_ENTRIES:
 		ret = compat_get_entries(sock_net(sk), user, len);
@@ -2021,7 +2021,7 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 
 	switch (cmd) {
 	case IP6T_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 0);
+		ret = get_info(sock_net(sk), user, *len, 0);
 		break;
 
 	case IP6T_SO_GET_ENTRIES:
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 6700069..1e50f42 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -89,12 +89,11 @@ static struct ctl_table nf_ct_frag6_sysctl_table[] = {
 
 static int nf_ct_frag6_sysctl_register(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 
-	table = nf_ct_frag6_sysctl_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(nf_ct_frag6_sysctl_table),
+		table = kmemdup(nf_ct_frag6_sysctl_table, sizeof(nf_ct_frag6_sysctl_table),
 				GFP_KERNEL);
 		if (table == NULL)
 			goto err_alloc;
@@ -102,9 +101,9 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
 		table[0].data = &net->nf_frag.frags.timeout;
 		table[1].data = &net->nf_frag.frags.low_thresh;
 		table[2].data = &net->nf_frag.frags.high_thresh;
-	}
-
-	hdr = register_net_sysctl(net, "net/netfilter", table);
+		hdr = register_net_sysctl(net, "net/netfilter", table);
+	} else
+		hdr = register_net_sysctl(net, "net/netfilter", nf_ct_frag6_sysctl_table);
 	if (hdr == NULL)
 		goto err_reg;
 
@@ -112,8 +111,7 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 330b5e7..796fbf1 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -378,7 +378,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&
 	    skb_checksum_complete(skb)) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
@@ -406,7 +406,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
 	struct raw6_sock *rp = raw6_sk(sk);
 
 	if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
@@ -430,7 +430,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
 
 	if (inet->hdrincl) {
 		if (skb_checksum_complete(skb)) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			kfree_skb(skb);
 			return NET_RX_DROP;
 		}
@@ -603,7 +603,7 @@ out:
 	return err;
 }
 
-static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
+static int rawv6_send_hdrinc(struct sock *sk, void *from, unsigned int length,
 			struct flowi6 *fl6, struct dst_entry **dstp,
 			unsigned int flags)
 {
@@ -915,12 +915,15 @@ do_confirm:
 static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
 			       char __user *optval, int optlen)
 {
+	struct icmp6_filter filter;
+
 	switch (optname) {
 	case ICMPV6_FILTER:
 		if (optlen > sizeof(struct icmp6_filter))
 			optlen = sizeof(struct icmp6_filter);
-		if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen))
+		if (copy_from_user(&filter, optval, optlen))
 			return -EFAULT;
+		raw6_sk(sk)->filter = filter;
 		return 0;
 	default:
 		return -ENOPROTOOPT;
@@ -933,6 +936,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
 			       char __user *optval, int __user *optlen)
 {
 	int len;
+	struct icmp6_filter filter;
 
 	switch (optname) {
 	case ICMPV6_FILTER:
@@ -944,7 +948,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
 			len = sizeof(struct icmp6_filter);
 		if (put_user(len, optlen))
 			return -EFAULT;
-		if (copy_to_user(optval, &raw6_sk(sk)->filter, len))
+		filter = raw6_sk(sk)->filter;
+		if (len > sizeof filter || copy_to_user(optval, &filter, len))
 			return -EFAULT;
 		return 0;
 	default:
@@ -1252,7 +1257,7 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
 		   from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
 		   0,
 		   sock_i_ino(sp),
-		   atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
+		   atomic_read(&sp->sk_refcnt), sp, atomic_read_unchecked(&sp->sk_drops));
 }
 
 static int raw6_seq_show(struct seq_file *seq, void *v)
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 0ba10e5..c14a4f6 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -602,12 +602,11 @@ static struct ctl_table ip6_frags_ctl_table[] = {
 
 static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 
-	table = ip6_frags_ns_ctl_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
+		table = kmemdup(ip6_frags_ns_ctl_table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
 		if (table == NULL)
 			goto err_alloc;
 
@@ -618,9 +617,10 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
 		/* Don't export sysctls to unprivileged users */
 		if (net->user_ns != &init_user_ns)
 			table[0].procname = NULL;
-	}
+		hdr = register_net_sysctl(net, "net/ipv6", table);
+	} else
+		hdr = register_net_sysctl(net, "net/ipv6", ip6_frags_ns_ctl_table);
 
-	hdr = register_net_sysctl(net, "net/ipv6", table);
 	if (hdr == NULL)
 		goto err_reg;
 
@@ -628,8 +628,7 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index e5fe004..9fe3e8e 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2881,7 +2881,7 @@ ctl_table ipv6_route_table_template[] = {
 
 struct ctl_table * __net_init ipv6_route_sysctl_init(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(ipv6_route_table_template,
 			sizeof(ipv6_route_table_template),
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 02f96dc..4a5a6e5 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -74,7 +74,7 @@ static void ipip6_tunnel_setup(struct net_device *dev);
 static void ipip6_dev_free(struct net_device *dev);
 static bool check_6rd(struct ip_tunnel *tunnel, const struct in6_addr *v6dst,
 		      __be32 *v4dst);
-static struct rtnl_link_ops sit_link_ops __read_mostly;
+static struct rtnl_link_ops sit_link_ops;
 
 static int sit_net_id __read_mostly;
 struct sit_net {
@@ -1486,7 +1486,7 @@ static const struct nla_policy ipip6_policy[IFLA_IPTUN_MAX + 1] = {
 #endif
 };
 
-static struct rtnl_link_ops sit_link_ops __read_mostly = {
+static struct rtnl_link_ops sit_link_ops = {
 	.kind		= "sit",
 	.maxtype	= IFLA_IPTUN_MAX,
 	.policy		= ipip6_policy,
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
index e85c48b..b8268d3 100644
--- a/net/ipv6/sysctl_net_ipv6.c
+++ b/net/ipv6/sysctl_net_ipv6.c
@@ -40,7 +40,7 @@ static ctl_table ipv6_rotable[] = {
 
 static int __net_init ipv6_sysctl_net_init(struct net *net)
 {
-	struct ctl_table *ipv6_table;
+	ctl_table_no_const *ipv6_table;
 	struct ctl_table *ipv6_route_table;
 	struct ctl_table *ipv6_icmp_table;
 	int err;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 0fce928..c52a518 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -103,6 +103,10 @@ static void inet6_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb)
 		inet6_sk(sk)->rx_dst_cookie = rt->rt6i_node->fn_sernum;
 }
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 static void tcp_v6_hash(struct sock *sk)
 {
 	if (sk->sk_state != TCP_CLOSE) {
@@ -1446,6 +1450,9 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
 	return 0;
 
 reset:
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	if (!grsec_enable_blackhole)
+#endif
 	tcp_v6_send_reset(sk, skb);
 discard:
 	if (opt_skb)
@@ -1527,12 +1534,20 @@ static int tcp_v6_rcv(struct sk_buff *skb)
 	TCP_SKB_CB(skb)->sacked = 0;
 
 	sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
-	if (!sk)
+	if (!sk) {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		ret = 1;
+#endif
 		goto no_tcp_socket;
+	}
 
 process:
-	if (sk->sk_state == TCP_TIME_WAIT)
+	if (sk->sk_state == TCP_TIME_WAIT) {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		ret = 2;
+#endif
 		goto do_time_wait;
+	}
 
 	if (hdr->hop_limit < inet6_sk(sk)->min_hopcount) {
 		NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
@@ -1581,6 +1596,10 @@ no_tcp_socket:
 bad_packet:
 		TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
 	} else {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		if (!grsec_enable_blackhole || (ret == 1 &&
+		    (skb->dev->flags & IFF_LOOPBACK)))
+#endif
 		tcp_v6_send_reset(NULL, skb);
 	}
 
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 27f0f8e..949e7ee 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -52,6 +52,10 @@
 #include <trace/events/skb.h>
 #include "udp_impl.h"
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
 {
 	const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr;
@@ -419,7 +423,7 @@ try_again:
 	if (unlikely(err)) {
 		trace_kfree_skb(skb, udpv6_recvmsg);
 		if (!peeked) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			if (is_udp4)
 				UDP_INC_STATS_USER(sock_net(sk),
 						   UDP_MIB_INERRORS,
@@ -657,7 +661,7 @@ int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 	return rc;
 drop:
 	UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
-	atomic_inc(&sk->sk_drops);
+	atomic_inc_unchecked(&sk->sk_drops);
 	kfree_skb(skb);
 	return -1;
 }
@@ -715,7 +719,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
 		if (likely(skb1 == NULL))
 			skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
 		if (!skb1) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
 					  IS_UDPLITE(sk));
 			UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
@@ -852,6 +856,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 		goto discard;
 
 	UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
+#endif
 	icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0);
 
 	kfree_skb(skb);
@@ -1377,7 +1384,7 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket
 		   0,
 		   sock_i_ino(sp),
 		   atomic_read(&sp->sk_refcnt), sp,
-		   atomic_read(&sp->sk_drops));
+		   atomic_read_unchecked(&sp->sk_drops));
 }
 
 int udp6_seq_show(struct seq_file *seq, void *v)
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 23ed03d..465a71d 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -324,19 +324,19 @@ static struct ctl_table xfrm6_policy_table[] = {
 
 static int __net_init xfrm6_net_init(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 
-	table = xfrm6_policy_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(xfrm6_policy_table), GFP_KERNEL);
+		table = kmemdup(xfrm6_policy_table, sizeof(xfrm6_policy_table), GFP_KERNEL);
 		if (!table)
 			goto err_alloc;
 
 		table[0].data = &net->xfrm.xfrm6_dst_ops.gc_thresh;
-	}
+		hdr = register_net_sysctl(net, "net/ipv6", table);
+	} else
+		hdr = register_net_sysctl(net, "net/ipv6", xfrm6_policy_table);
 
-	hdr = register_net_sysctl(net, "net/ipv6", table);
 	if (!hdr)
 		goto err_reg;
 
@@ -344,8 +344,7 @@ static int __net_init xfrm6_net_init(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
index 362ba47..66196f4 100644
--- a/net/irda/ircomm/ircomm_tty.c
+++ b/net/irda/ircomm/ircomm_tty.c
@@ -319,11 +319,11 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
 	add_wait_queue(&port->open_wait, &wait);
 
 	IRDA_DEBUG(2, "%s(%d):block_til_ready before block on %s open_count=%d\n",
-	      __FILE__, __LINE__, tty->driver->name, port->count);
+	      __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
 
 	spin_lock_irqsave(&port->lock, flags);
 	if (!tty_hung_up_p(filp))
-		port->count--;
+		atomic_dec(&port->count);
 	port->blocked_open++;
 	spin_unlock_irqrestore(&port->lock, flags);
 
@@ -358,7 +358,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
 		}
 
 		IRDA_DEBUG(1, "%s(%d):block_til_ready blocking on %s open_count=%d\n",
-		      __FILE__, __LINE__, tty->driver->name, port->count);
+		      __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
 
 		schedule();
 	}
@@ -368,12 +368,12 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
 
 	spin_lock_irqsave(&port->lock, flags);
 	if (!tty_hung_up_p(filp))
-		port->count++;
+		atomic_inc(&port->count);
 	port->blocked_open--;
 	spin_unlock_irqrestore(&port->lock, flags);
 
 	IRDA_DEBUG(1, "%s(%d):block_til_ready after blocking on %s open_count=%d\n",
-	      __FILE__, __LINE__, tty->driver->name, port->count);
+	      __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
 
 	if (!retval)
 		port->flags |= ASYNC_NORMAL_ACTIVE;
@@ -447,12 +447,12 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
 
 	/* ++ is not atomic, so this should be protected - Jean II */
 	spin_lock_irqsave(&self->port.lock, flags);
-	self->port.count++;
+	atomic_inc(&self->port.count);
 	spin_unlock_irqrestore(&self->port.lock, flags);
 	tty_port_tty_set(&self->port, tty);
 
 	IRDA_DEBUG(1, "%s(), %s%d, count = %d\n", __func__ , tty->driver->name,
-		   self->line, self->port.count);
+		   self->line, atomic_read(&self->port.count));
 
 	/* Not really used by us, but lets do it anyway */
 	self->port.low_latency = (self->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
@@ -989,7 +989,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty)
 		tty_kref_put(port->tty);
 	}
 	port->tty = NULL;
-	port->count = 0;
+	atomic_set(&port->count, 0);
 	spin_unlock_irqrestore(&port->lock, flags);
 
 	wake_up_interruptible(&port->open_wait);
@@ -1346,7 +1346,7 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m)
 	seq_putc(m, '\n');
 
 	seq_printf(m, "Role: %s\n", self->client ? "client" : "server");
-	seq_printf(m, "Open count: %d\n", self->port.count);
+	seq_printf(m, "Open count: %d\n", atomic_read(&self->port.count));
 	seq_printf(m, "Max data size: %d\n", self->max_data_size);
 	seq_printf(m, "Max header size: %d\n", self->max_header_size);
 
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 206ce6d..cfb27cd 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -773,10 +773,10 @@ static int iucv_sock_autobind(struct sock *sk)
 
 	write_lock_bh(&iucv_sk_list.lock);
 
-	sprintf(name, "%08x", atomic_inc_return(&iucv_sk_list.autobind_name));
+	sprintf(name, "%08x", atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
 	while (__iucv_get_sock_by_name(name)) {
 		sprintf(name, "%08x",
-			atomic_inc_return(&iucv_sk_list.autobind_name));
+			atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
 	}
 
 	write_unlock_bh(&iucv_sk_list.lock);
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 4fe76ff..426a904 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -690,7 +690,7 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata iucv_cpu_notifier = {
+static struct notifier_block iucv_cpu_notifier = {
 	.notifier_call = iucv_cpu_notify,
 };
 
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 5b1e5af..2358147 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -3041,10 +3041,10 @@ static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, const struc
 static u32 get_acqseq(void)
 {
 	u32 res;
-	static atomic_t acqseq;
+	static atomic_unchecked_t acqseq;
 
 	do {
-		res = atomic_inc_return(&acqseq);
+		res = atomic_inc_return_unchecked(&acqseq);
 	} while (!res);
 	return res;
 }
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 843d8c4..cb04fa1 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -799,7 +799,7 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 			ret = ieee80211_vif_use_channel(sdata, chandef,
 					IEEE80211_CHANCTX_EXCLUSIVE);
 		}
-	} else if (local->open_count == local->monitors) {
+	} else if (local_read(&local->open_count) == local->monitors) {
 		local->_oper_channel = chandef->chan;
 		local->_oper_channel_type = cfg80211_get_chandef_type(chandef);
 		ieee80211_hw_config(local, 0);
@@ -2834,7 +2834,7 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
 		else
 			local->probe_req_reg--;
 
-		if (!local->open_count)
+		if (!local_read(&local->open_count))
 			break;
 
 		ieee80211_queue_work(&local->hw, &local->reconfig_filter);
@@ -3297,8 +3297,8 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
 	if (chanctx_conf) {
 		*chandef = chanctx_conf->def;
 		ret = 0;
-	} else if (local->open_count > 0 &&
-		   local->open_count == local->monitors &&
+	} else if (local_read(&local->open_count) > 0 &&
+		   local_read(&local->open_count) == local->monitors &&
 		   sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 		if (local->use_chanctx)
 			*chandef = local->monitor_chandef;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 5672533..6738c93 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -28,6 +28,7 @@
 #include <net/ieee80211_radiotap.h>
 #include <net/cfg80211.h>
 #include <net/mac80211.h>
+#include <asm/local.h>
 #include "key.h"
 #include "sta_info.h"
 #include "debug.h"
@@ -897,7 +898,7 @@ struct ieee80211_local {
 	/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
 	spinlock_t queue_stop_reason_lock;
 
-	int open_count;
+	local_t open_count;
 	int monitors, cooked_mntrs;
 	/* number of interfaces with corresponding FIF_ flags */
 	int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index d51ca9d..042c35f 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -495,7 +495,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 		break;
 	}
 
-	if (local->open_count == 0) {
+	if (local_read(&local->open_count) == 0) {
 		res = drv_start(local);
 		if (res)
 			goto err_del_bss;
@@ -540,7 +540,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 			break;
 		}
 
-		if (local->monitors == 0 && local->open_count == 0) {
+		if (local->monitors == 0 && local_read(&local->open_count) == 0) {
 			res = ieee80211_add_virtual_monitor(local);
 			if (res)
 				goto err_stop;
@@ -649,7 +649,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 		atomic_inc(&local->iff_promiscs);
 
 	if (coming_up)
-		local->open_count++;
+		local_inc(&local->open_count);
 
 	if (hw_reconf_flags)
 		ieee80211_hw_config(local, hw_reconf_flags);
@@ -663,7 +663,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
  err_del_interface:
 	drv_remove_interface(local, sdata);
  err_stop:
-	if (!local->open_count)
+	if (!local_read(&local->open_count))
 		drv_stop(local);
  err_del_bss:
 	sdata->bss = NULL;
@@ -806,7 +806,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (going_down)
-		local->open_count--;
+		local_dec(&local->open_count);
 
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_AP_VLAN:
@@ -871,7 +871,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_recalc_ps(local, -1);
 
-	if (local->open_count == 0) {
+	if (local_read(&local->open_count) == 0) {
 		if (local->ops->napi_poll)
 			napi_disable(&local->napi);
 		ieee80211_clear_tx_pending(local);
@@ -897,7 +897,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	}
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 
-	if (local->monitors == local->open_count && local->monitors > 0)
+	if (local->monitors == local_read(&local->open_count) && local->monitors > 0)
 		ieee80211_add_virtual_monitor(local);
 }
 
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 1a8591b..ef5db54 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -180,7 +180,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 		changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL |
 			     IEEE80211_CONF_CHANGE_POWER);
 
-	if (changed && local->open_count) {
+	if (changed && local_read(&local->open_count)) {
 		ret = drv_config(local, changed);
 		/*
 		 * Goal:
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 835584c..be46e67 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -33,7 +33,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	struct sta_info *sta;
 	struct ieee80211_chanctx *ctx;
 
-	if (!local->open_count)
+	if (!local_read(&local->open_count))
 		goto suspend;
 
 	ieee80211_scan_cancel(local);
@@ -75,7 +75,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	cancel_work_sync(&local->dynamic_ps_enable_work);
 	del_timer_sync(&local->dynamic_ps_timer);
 
-	local->wowlan = wowlan && local->open_count;
+	local->wowlan = wowlan && local_read(&local->open_count);
 	if (local->wowlan) {
 		int err = drv_suspend(local, wowlan);
 		if (err < 0) {
@@ -214,7 +214,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	mutex_unlock(&local->chanctx_mtx);
 
 	/* stop hardware - this must stop RX */
-	if (local->open_count)
+	if (local_read(&local->open_count))
 		ieee80211_stop_device(local);
 
  suspend:
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index dd88381..eef4dd6 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -493,7 +493,7 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
 
 	ASSERT_RTNL();
 
-	if (local->open_count)
+	if (local_read(&local->open_count))
 		return -EBUSY;
 
 	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
index c97a065..ff61928 100644
--- a/net/mac80211/rc80211_pid_debugfs.c
+++ b/net/mac80211/rc80211_pid_debugfs.c
@@ -193,7 +193,7 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf,
 
 	spin_unlock_irqrestore(&events->lock, status);
 
-	if (copy_to_user(buf, pb, p))
+	if (p > sizeof(pb) || copy_to_user(buf, pb, p))
 		return -EFAULT;
 
 	return p;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 0f38f43..e53d4a8 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1388,7 +1388,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	}
 #endif
 	/* everything else happens only if HW was up & running */
-	if (!local->open_count)
+	if (!local_read(&local->open_count))
 		goto wake_up;
 
 	/*
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 56d22ca..87c778f 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -958,6 +958,16 @@ config NETFILTER_XT_MATCH_ESP
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
+config NETFILTER_XT_MATCH_GRADM
+	tristate '"gradm" match support'
+	depends on NETFILTER_XTABLES && NETFILTER_ADVANCED
+	depends on GRKERNSEC && !GRKERNSEC_NO_RBAC
+	---help---
+	  The gradm match allows to match on grsecurity RBAC being enabled.
+	  It is useful when iptables rules are applied early on bootup to
+	  prevent connections to the machine (except from a trusted host)
+	  while the RBAC system is disabled.
+
 config NETFILTER_XT_MATCH_HASHLIMIT
 	tristate '"hashlimit" match support'
 	depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n)
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index a1abf87..dbcb7ee 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -112,6 +112,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_ECN) += xt_ecn.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_GRADM) += xt_gradm.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index 1ba9dbc..e39f4ca 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -1801,7 +1801,7 @@ done:
 	return ret;
 }
 
-static struct nf_sockopt_ops so_set __read_mostly = {
+static struct nf_sockopt_ops so_set = {
 	.pf		= PF_INET,
 	.get_optmin	= SO_IP_SET,
 	.get_optmax	= SO_IP_SET + 1,
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index 704e514..d644cc2 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -551,7 +551,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
 	/* Increase the refcnt counter of the dest */
 	atomic_inc(&dest->refcnt);
 
-	conn_flags = atomic_read(&dest->conn_flags);
+	conn_flags = atomic_read_unchecked(&dest->conn_flags);
 	if (cp->protocol != IPPROTO_UDP)
 		conn_flags &= ~IP_VS_CONN_F_ONE_PACKET;
 	flags = cp->flags;
@@ -895,7 +895,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p,
 	atomic_set(&cp->refcnt, 1);
 
 	atomic_set(&cp->n_control, 0);
-	atomic_set(&cp->in_pkts, 0);
+	atomic_set_unchecked(&cp->in_pkts, 0);
 
 	atomic_inc(&ipvs->conn_count);
 	if (flags & IP_VS_CONN_F_NO_CPORT)
@@ -1174,7 +1174,7 @@ static inline int todrop_entry(struct ip_vs_conn *cp)
 
 	/* Don't drop the entry if its number of incoming packets is not
 	   located in [0, 8] */
-	i = atomic_read(&cp->in_pkts);
+	i = atomic_read_unchecked(&cp->in_pkts);
 	if (i > 8 || i < 0) return 0;
 
 	if (!todrop_rate[i]) return 0;
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 61f49d2..6c8c5bc 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -559,7 +559,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
 		ret = cp->packet_xmit(skb, cp, pd->pp, iph);
 		/* do not touch skb anymore */
 
-		atomic_inc(&cp->in_pkts);
+		atomic_inc_unchecked(&cp->in_pkts);
 		ip_vs_conn_put(cp);
 		return ret;
 	}
@@ -1689,7 +1689,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
 	if (cp->flags & IP_VS_CONN_F_ONE_PACKET)
 		pkts = sysctl_sync_threshold(ipvs);
 	else
-		pkts = atomic_add_return(1, &cp->in_pkts);
+		pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
 
 	if (ipvs->sync_state & IP_VS_STATE_MASTER)
 		ip_vs_sync_conn(net, cp, pkts);
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 9e2d1cc..7f8f569 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -787,7 +787,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest,
 		ip_vs_rs_hash(ipvs, dest);
 		write_unlock_bh(&ipvs->rs_lock);
 	}
-	atomic_set(&dest->conn_flags, conn_flags);
+	atomic_set_unchecked(&dest->conn_flags, conn_flags);
 
 	/* bind the service */
 	if (!dest->svc) {
@@ -1688,7 +1688,7 @@ proc_do_sync_ports(ctl_table *table, int write,
  *	align with netns init in ip_vs_control_net_init()
  */
 
-static struct ctl_table vs_vars[] = {
+static ctl_table_no_const vs_vars[] __read_only = {
 	{
 		.procname	= "amemthresh",
 		.maxlen		= sizeof(int),
@@ -2087,7 +2087,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
 					   "      %-7s %-6d %-10d %-10d\n",
 					   &dest->addr.in6,
 					   ntohs(dest->port),
-					   ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
+					   ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
 					   atomic_read(&dest->weight),
 					   atomic_read(&dest->activeconns),
 					   atomic_read(&dest->inactconns));
@@ -2098,7 +2098,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
 					   "%-7s %-6d %-10d %-10d\n",
 					   ntohl(dest->addr.ip),
 					   ntohs(dest->port),
-					   ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
+					   ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
 					   atomic_read(&dest->weight),
 					   atomic_read(&dest->activeconns),
 					   atomic_read(&dest->inactconns));
@@ -2568,7 +2568,7 @@ __ip_vs_get_dest_entries(struct net *net, const struct ip_vs_get_dests *get,
 
 			entry.addr = dest->addr.ip;
 			entry.port = dest->port;
-			entry.conn_flags = atomic_read(&dest->conn_flags);
+			entry.conn_flags = atomic_read_unchecked(&dest->conn_flags);
 			entry.weight = atomic_read(&dest->weight);
 			entry.u_threshold = dest->u_threshold;
 			entry.l_threshold = dest->l_threshold;
@@ -3104,7 +3104,7 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest)
 	if (nla_put(skb, IPVS_DEST_ATTR_ADDR, sizeof(dest->addr), &dest->addr) ||
 	    nla_put_u16(skb, IPVS_DEST_ATTR_PORT, dest->port) ||
 	    nla_put_u32(skb, IPVS_DEST_ATTR_FWD_METHOD,
-			(atomic_read(&dest->conn_flags) &
+			(atomic_read_unchecked(&dest->conn_flags) &
 			 IP_VS_CONN_F_FWD_MASK)) ||
 	    nla_put_u32(skb, IPVS_DEST_ATTR_WEIGHT,
 			atomic_read(&dest->weight)) ||
@@ -3694,7 +3694,7 @@ static int __net_init ip_vs_control_net_init_sysctl(struct net *net)
 {
 	int idx;
 	struct netns_ipvs *ipvs = net_ipvs(net);
-	struct ctl_table *tbl;
+	ctl_table_no_const *tbl;
 
 	atomic_set(&ipvs->dropentry, 0);
 	spin_lock_init(&ipvs->dropentry_lock);
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index fdd89b9..bd96aa9 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -115,7 +115,7 @@ struct ip_vs_lblc_table {
  *      IPVS LBLC sysctl table
  */
 #ifdef CONFIG_SYSCTL
-static ctl_table vs_vars_table[] = {
+static ctl_table_no_const vs_vars_table[] __read_only = {
 	{
 		.procname	= "lblc_expiration",
 		.data		= NULL,
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index c03b6a3..8ce3681 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -288,7 +288,7 @@ struct ip_vs_lblcr_table {
  *      IPVS LBLCR sysctl table
  */
 
-static ctl_table vs_vars_table[] = {
+static ctl_table_no_const vs_vars_table[] __read_only = {
 	{
 		.procname	= "lblcr_expiration",
 		.data		= NULL,
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 44fd10c..2a163b3 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -596,7 +596,7 @@ static void ip_vs_sync_conn_v0(struct net *net, struct ip_vs_conn *cp,
 	cp = cp->control;
 	if (cp) {
 		if (cp->flags & IP_VS_CONN_F_TEMPLATE)
-			pkts = atomic_add_return(1, &cp->in_pkts);
+			pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
 		else
 			pkts = sysctl_sync_threshold(ipvs);
 		ip_vs_sync_conn(net, cp->control, pkts);
@@ -758,7 +758,7 @@ control:
 	if (!cp)
 		return;
 	if (cp->flags & IP_VS_CONN_F_TEMPLATE)
-		pkts = atomic_add_return(1, &cp->in_pkts);
+		pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
 	else
 		pkts = sysctl_sync_threshold(ipvs);
 	goto sloop;
@@ -885,7 +885,7 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param,
 
 	if (opt)
 		memcpy(&cp->in_seq, opt, sizeof(*opt));
-	atomic_set(&cp->in_pkts, sysctl_sync_threshold(ipvs));
+	atomic_set_unchecked(&cp->in_pkts, sysctl_sync_threshold(ipvs));
 	cp->state = state;
 	cp->old_state = cp->state;
 	/*
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index ee6b7a9..f9a89f6 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -1210,7 +1210,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 		else
 			rc = NF_ACCEPT;
 		/* do not touch skb anymore */
-		atomic_inc(&cp->in_pkts);
+		atomic_inc_unchecked(&cp->in_pkts);
 		goto out;
 	}
 
@@ -1332,7 +1332,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 		else
 			rc = NF_ACCEPT;
 		/* do not touch skb anymore */
-		atomic_inc(&cp->in_pkts);
+		atomic_inc_unchecked(&cp->in_pkts);
 		goto out;
 	}
 
diff --git a/net/netfilter/nf_conntrack_acct.c b/net/netfilter/nf_conntrack_acct.c
index 2d3030a..7ba1c0a 100644
--- a/net/netfilter/nf_conntrack_acct.c
+++ b/net/netfilter/nf_conntrack_acct.c
@@ -60,7 +60,7 @@ static struct nf_ct_ext_type acct_extend __read_mostly = {
 #ifdef CONFIG_SYSCTL
 static int nf_conntrack_acct_init_sysctl(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(acct_sysctl_table, sizeof(acct_sysctl_table),
 			GFP_KERNEL);
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index c8e001a..f842a8b 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1594,6 +1594,10 @@ void nf_conntrack_init_end(void)
 #define DYING_NULLS_VAL		((1<<30)+1)
 #define TEMPLATE_NULLS_VAL	((1<<30)+2)
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+static atomic_unchecked_t conntrack_cache_id = ATOMIC_INIT(0);
+#endif
+
 int nf_conntrack_init_net(struct net *net)
 {
 	int ret;
@@ -1608,7 +1612,11 @@ int nf_conntrack_init_net(struct net *net)
 		goto err_stat;
 	}
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%08lx", atomic_inc_return_unchecked(&conntrack_cache_id));
+#else
 	net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%p", net);
+#endif
 	if (!net->ct.slabname) {
 		ret = -ENOMEM;
 		goto err_slabname;
diff --git a/net/netfilter/nf_conntrack_ecache.c b/net/netfilter/nf_conntrack_ecache.c
index b5d2eb8..61ef19a 100644
--- a/net/netfilter/nf_conntrack_ecache.c
+++ b/net/netfilter/nf_conntrack_ecache.c
@@ -186,7 +186,7 @@ static struct nf_ct_ext_type event_extend __read_mostly = {
 #ifdef CONFIG_SYSCTL
 static int nf_conntrack_event_init_sysctl(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(event_sysctl_table, sizeof(event_sysctl_table),
 			GFP_KERNEL);
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 94b4b98..97cf0ad 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -56,7 +56,7 @@ static struct ctl_table helper_sysctl_table[] = {
 
 static int nf_conntrack_helper_init_sysctl(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(helper_sysctl_table, sizeof(helper_sysctl_table),
 			GFP_KERNEL);
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index 58ab405..50eb8d3 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -51,7 +51,7 @@ nf_ct_register_sysctl(struct net *net,
 
 static void
 nf_ct_unregister_sysctl(struct ctl_table_header **header,
-			struct ctl_table **table,
+			ctl_table_no_const **table,
 			unsigned int users)
 {
 	if (users > 0)
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index fedee39..d62a93d 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -470,7 +470,7 @@ static ctl_table nf_ct_netfilter_table[] = {
 
 static int nf_conntrack_standalone_init_sysctl(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),
 			GFP_KERNEL);
diff --git a/net/netfilter/nf_conntrack_timestamp.c b/net/netfilter/nf_conntrack_timestamp.c
index 902fb0a..87f7fdb 100644
--- a/net/netfilter/nf_conntrack_timestamp.c
+++ b/net/netfilter/nf_conntrack_timestamp.c
@@ -42,7 +42,7 @@ static struct nf_ct_ext_type tstamp_extend __read_mostly = {
 #ifdef CONFIG_SYSCTL
 static int nf_conntrack_tstamp_init_sysctl(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(tstamp_sysctl_table, sizeof(tstamp_sysctl_table),
 			GFP_KERNEL);
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 9e31269..bc4c1b7 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -215,7 +215,7 @@ static const struct file_operations nflog_file_ops = {
 
 #ifdef CONFIG_SYSCTL
 static char nf_log_sysctl_fnames[NFPROTO_NUMPROTO-NFPROTO_UNSPEC][3];
-static struct ctl_table nf_log_sysctl_table[NFPROTO_NUMPROTO+1];
+static ctl_table_no_const nf_log_sysctl_table[NFPROTO_NUMPROTO+1] __read_only;
 static struct ctl_table_header *nf_log_dir_header;
 
 static int nf_log_proc_dostring(ctl_table *table, int write,
@@ -246,14 +246,16 @@ static int nf_log_proc_dostring(ctl_table *table, int write,
 		rcu_assign_pointer(nf_loggers[tindex], logger);
 		mutex_unlock(&nf_log_mutex);
 	} else {
+		ctl_table_no_const nf_log_table = *table;
+
 		mutex_lock(&nf_log_mutex);
 		logger = rcu_dereference_protected(nf_loggers[tindex],
 						   lockdep_is_held(&nf_log_mutex));
 		if (!logger)
-			table->data = "NONE";
+			nf_log_table.data = "NONE";
 		else
-			table->data = logger->name;
-		r = proc_dostring(table, write, buffer, lenp, ppos);
+			nf_log_table.data = logger->name;
+		r = proc_dostring(&nf_log_table, write, buffer, lenp, ppos);
 		mutex_unlock(&nf_log_mutex);
 	}
 
diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
index f042ae5..30ea486 100644
--- a/net/netfilter/nf_sockopt.c
+++ b/net/netfilter/nf_sockopt.c
@@ -45,7 +45,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
 		}
 	}
 
-	list_add(&reg->list, &nf_sockopts);
+	pax_list_add((struct list_head *)&reg->list, &nf_sockopts);
 out:
 	mutex_unlock(&nf_sockopt_mutex);
 	return ret;
@@ -55,7 +55,7 @@ EXPORT_SYMBOL(nf_register_sockopt);
 void nf_unregister_sockopt(struct nf_sockopt_ops *reg)
 {
 	mutex_lock(&nf_sockopt_mutex);
-	list_del(&reg->list);
+	pax_list_del((struct list_head *)&reg->list);
 	mutex_unlock(&nf_sockopt_mutex);
 }
 EXPORT_SYMBOL(nf_unregister_sockopt);
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index f248db5..3778ad9 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -72,7 +72,7 @@ struct nfulnl_instance {
 };
 
 static DEFINE_SPINLOCK(instances_lock);
-static atomic_t global_seq;
+static atomic_unchecked_t global_seq;
 
 #define INSTANCE_BUCKETS	16
 static struct hlist_head instance_table[INSTANCE_BUCKETS];
@@ -536,7 +536,7 @@ __build_packet_message(struct nfulnl_instance *inst,
 	/* global sequence number */
 	if ((inst->flags & NFULNL_CFG_F_SEQ_GLOBAL) &&
 	    nla_put_be32(inst->skb, NFULA_SEQ_GLOBAL,
-			 htonl(atomic_inc_return(&global_seq))))
+			 htonl(atomic_inc_return_unchecked(&global_seq))))
 		goto nla_put_failure;
 
 	if (data_len) {
diff --git a/net/netfilter/xt_gradm.c b/net/netfilter/xt_gradm.c
new file mode 100644
index 0000000..c566332
--- /dev/null
+++ b/net/netfilter/xt_gradm.c
@@ -0,0 +1,51 @@
+/*
+ *	gradm match for netfilter
+ *	Copyright © Zbigniew Krzystolik, 2010
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License; either version
+ *	2 or 3 as published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/skbuff.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/grsecurity.h>
+#include <linux/netfilter/xt_gradm.h>
+
+static bool
+gradm_mt(const struct sk_buff *skb, struct xt_action_param *par)
+{
+	const struct xt_gradm_mtinfo *info = par->matchinfo;
+	bool retval = false;
+	if (gr_acl_is_enabled())
+		retval = true;
+	return retval ^ info->invflags;
+}
+
+static struct xt_match gradm_mt_reg __read_mostly = {
+		.name       = "gradm",
+		.revision   = 0,
+		.family     = NFPROTO_UNSPEC,
+		.match      = gradm_mt,
+		.matchsize  = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)),
+		.me         = THIS_MODULE,
+};
+
+static int __init gradm_mt_init(void)
+{
+	return xt_register_match(&gradm_mt_reg);
+}
+
+static void __exit gradm_mt_exit(void)
+{
+	xt_unregister_match(&gradm_mt_reg);
+}
+
+module_init(gradm_mt_init);
+module_exit(gradm_mt_exit);
+MODULE_AUTHOR("Zbigniew Krzystolik <zbyniu@destrukcja.pl>");
+MODULE_DESCRIPTION("Xtables: Grsecurity RBAC match");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_gradm");
+MODULE_ALIAS("ip6t_gradm");
diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c
index 4fe4fb4..87a89e5 100644
--- a/net/netfilter/xt_statistic.c
+++ b/net/netfilter/xt_statistic.c
@@ -19,7 +19,7 @@
 #include <linux/module.h>
 
 struct xt_statistic_priv {
-	atomic_t count;
+	atomic_unchecked_t count;
 } ____cacheline_aligned_in_smp;
 
 MODULE_LICENSE("GPL");
@@ -42,9 +42,9 @@ statistic_mt(const struct sk_buff *skb, struct xt_action_param *par)
 		break;
 	case XT_STATISTIC_MODE_NTH:
 		do {
-			oval = atomic_read(&info->master->count);
+			oval = atomic_read_unchecked(&info->master->count);
 			nval = (oval == info->u.nth.every) ? 0 : oval + 1;
-		} while (atomic_cmpxchg(&info->master->count, oval, nval) != oval);
+		} while (atomic_cmpxchg_unchecked(&info->master->count, oval, nval) != oval);
 		if (nval == 0)
 			ret = !ret;
 		break;
@@ -64,7 +64,7 @@ static int statistic_mt_check(const struct xt_mtchk_param *par)
 	info->master = kzalloc(sizeof(*info->master), GFP_KERNEL);
 	if (info->master == NULL)
 		return -ENOMEM;
-	atomic_set(&info->master->count, info->u.nth.count);
+	atomic_set_unchecked(&info->master->count, info->u.nth.count);
 
 	return 0;
 }
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 1e3fd5b..ad397ea 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -781,7 +781,7 @@ static void netlink_overrun(struct sock *sk)
 			sk->sk_error_report(sk);
 		}
 	}
-	atomic_inc(&sk->sk_drops);
+	atomic_inc_unchecked(&sk->sk_drops);
 }
 
 static struct sock *netlink_getsockbyportid(struct sock *ssk, u32 portid)
@@ -2063,7 +2063,7 @@ static int netlink_seq_show(struct seq_file *seq, void *v)
 			   sk_wmem_alloc_get(s),
 			   nlk->cb,
 			   atomic_read(&s->sk_refcnt),
-			   atomic_read(&s->sk_drops),
+			   atomic_read_unchecked(&s->sk_drops),
 			   sock_i_ino(s)
 			);
 
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 5a55be3..7630745 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -296,18 +296,20 @@ int genl_register_ops(struct genl_family *family, struct genl_ops *ops)
 		goto errout;
 	}
 
+	pax_open_kernel();
 	if (ops->dumpit)
-		ops->flags |= GENL_CMD_CAP_DUMP;
+		*(unsigned int *)&ops->flags |= GENL_CMD_CAP_DUMP;
 	if (ops->doit)
-		ops->flags |= GENL_CMD_CAP_DO;
+		*(unsigned int *)&ops->flags |= GENL_CMD_CAP_DO;
 	if (ops->policy)
-		ops->flags |= GENL_CMD_CAP_HASPOL;
+		*(unsigned int *)&ops->flags |= GENL_CMD_CAP_HASPOL;
+	pax_close_kernel();
 
 	genl_lock();
-	list_add_tail(&ops->ops_list, &family->ops_list);
+	pax_list_add_tail((struct list_head *)&ops->ops_list, &family->ops_list);
 	genl_unlock();
 
-	genl_ctrl_event(CTRL_CMD_NEWOPS, ops);
+	genl_ctrl_event(CTRL_CMD_NEWOPS, (void *)ops);
 	err = 0;
 errout:
 	return err;
@@ -337,9 +339,9 @@ int genl_unregister_ops(struct genl_family *family, struct genl_ops *ops)
 	genl_lock();
 	list_for_each_entry(rc, &family->ops_list, ops_list) {
 		if (rc == ops) {
-			list_del(&ops->ops_list);
+			pax_list_del((struct list_head *)&ops->ops_list);
 			genl_unlock();
-			genl_ctrl_event(CTRL_CMD_DELOPS, ops);
+			genl_ctrl_event(CTRL_CMD_DELOPS, (void *)ops);
 			return 0;
 		}
 	}
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 103bd70..f21aad3 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -834,6 +834,7 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
 	struct sock *sk = sock->sk;
 	struct nr_sock *nr = nr_sk(sk);
 
+	memset(sax, 0, sizeof(*sax));
 	lock_sock(sk);
 	if (peer != 0) {
 		if (sk->sk_state != TCP_ESTABLISHED) {
@@ -848,7 +849,6 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
 		*uaddr_len = sizeof(struct full_sockaddr_ax25);
 	} else {
 		sax->fsa_ax25.sax25_family = AF_NETROM;
-		sax->fsa_ax25.sax25_ndigis = 0;
 		sax->fsa_ax25.sax25_call   = nr->source_addr;
 		*uaddr_len = sizeof(struct sockaddr_ax25);
 	}
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index f83e172..b57140d 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1571,7 +1571,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
 
 	spin_lock(&sk->sk_receive_queue.lock);
 	po->stats.tp_packets++;
-	skb->dropcount = atomic_read(&sk->sk_drops);
+	skb->dropcount = atomic_read_unchecked(&sk->sk_drops);
 	__skb_queue_tail(&sk->sk_receive_queue, skb);
 	spin_unlock(&sk->sk_receive_queue.lock);
 	sk->sk_data_ready(sk, skb->len);
@@ -1580,7 +1580,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
 drop_n_acct:
 	spin_lock(&sk->sk_receive_queue.lock);
 	po->stats.tp_drops++;
-	atomic_inc(&sk->sk_drops);
+	atomic_inc_unchecked(&sk->sk_drops);
 	spin_unlock(&sk->sk_receive_queue.lock);
 
 drop_n_restore:
@@ -2558,6 +2558,7 @@ out:
 
 static int packet_recv_error(struct sock *sk, struct msghdr *msg, int len)
 {
+	struct sock_extended_err ee;
 	struct sock_exterr_skb *serr;
 	struct sk_buff *skb, *skb2;
 	int copied, err;
@@ -2579,8 +2580,9 @@ static int packet_recv_error(struct sock *sk, struct msghdr *msg, int len)
 	sock_recv_timestamp(msg, sk, skb);
 
 	serr = SKB_EXT_ERR(skb);
+	ee = serr->ee;
 	put_cmsg(msg, SOL_PACKET, PACKET_TX_TIMESTAMP,
-		 sizeof(serr->ee), &serr->ee);
+		 sizeof ee, &ee);
 
 	msg->msg_flags |= MSG_ERRQUEUE;
 	err = copied;
@@ -3205,7 +3207,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 	case PACKET_HDRLEN:
 		if (len > sizeof(int))
 			len = sizeof(int);
-		if (copy_from_user(&val, optval, len))
+		if (len > sizeof(val) || copy_from_user(&val, optval, len))
 			return -EFAULT;
 		switch (val) {
 		case TPACKET_V1:
@@ -3247,7 +3249,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 		len = lv;
 	if (put_user(len, optlen))
 		return -EFAULT;
-	if (copy_to_user(optval, data, len))
+	if (len > sizeof(st) || copy_to_user(optval, data, len))
 		return -EFAULT;
 	return 0;
 }
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
index 5a940db..d6a502d 100644
--- a/net/phonet/af_phonet.c
+++ b/net/phonet/af_phonet.c
@@ -469,7 +469,7 @@ int __init_or_module phonet_proto_register(unsigned int protocol,
 {
 	int err = 0;
 
-	if (protocol >= PHONET_NPROTO)
+	if (protocol < 0 || protocol >= PHONET_NPROTO)
 		return -EINVAL;
 
 	err = proto_register(pp->prot, 1);
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index e774117..900b8b7 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -388,7 +388,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
 
 	case PNS_PEP_CTRL_REQ:
 		if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			break;
 		}
 		__skb_pull(skb, 4);
@@ -409,7 +409,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
 		}
 
 		if (pn->rx_credits == 0) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			err = -ENOBUFS;
 			break;
 		}
@@ -580,7 +580,7 @@ static int pipe_handler_do_rcv(struct sock *sk, struct sk_buff *skb)
 		}
 
 		if (pn->rx_credits == 0) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			err = NET_RX_DROP;
 			break;
 		}
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index 1afd138..0b42453 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -612,7 +612,7 @@ static int pn_sock_seq_show(struct seq_file *seq, void *v)
 			from_kuid_munged(seq_user_ns(seq), sock_i_uid(sk)),
 			sock_i_ino(sk),
 			atomic_read(&sk->sk_refcnt), sk,
-			atomic_read(&sk->sk_drops), &len);
+			atomic_read_unchecked(&sk->sk_drops), &len);
 	}
 	seq_printf(seq, "%*s\n", 127 - len, "");
 	return 0;
diff --git a/net/phonet/sysctl.c b/net/phonet/sysctl.c
index d6bbbbd..61561e4 100644
--- a/net/phonet/sysctl.c
+++ b/net/phonet/sysctl.c
@@ -67,7 +67,7 @@ static int proc_local_port_range(ctl_table *table, int write,
 {
 	int ret;
 	int range[2] = {local_port_range[0], local_port_range[1]};
-	ctl_table tmp = {
+	ctl_table_no_const tmp = {
 		.data = &range,
 		.maxlen = sizeof(range),
 		.mode = table->mode,
diff --git a/net/rds/cong.c b/net/rds/cong.c
index e5b65ac..f3b6fb7 100644
--- a/net/rds/cong.c
+++ b/net/rds/cong.c
@@ -78,7 +78,7 @@
  * finds that the saved generation number is smaller than the global generation
  * number, it wakes up the process.
  */
-static atomic_t		rds_cong_generation = ATOMIC_INIT(0);
+static atomic_unchecked_t		rds_cong_generation = ATOMIC_INIT(0);
 
 /*
  * Congestion monitoring
@@ -233,7 +233,7 @@ void rds_cong_map_updated(struct rds_cong_map *map, uint64_t portmask)
 	rdsdebug("waking map %p for %pI4\n",
 	  map, &map->m_addr);
 	rds_stats_inc(s_cong_update_received);
-	atomic_inc(&rds_cong_generation);
+	atomic_inc_unchecked(&rds_cong_generation);
 	if (waitqueue_active(&map->m_waitq))
 		wake_up(&map->m_waitq);
 	if (waitqueue_active(&rds_poll_waitq))
@@ -259,7 +259,7 @@ EXPORT_SYMBOL_GPL(rds_cong_map_updated);
 
 int rds_cong_updated_since(unsigned long *recent)
 {
-	unsigned long gen = atomic_read(&rds_cong_generation);
+	unsigned long gen = atomic_read_unchecked(&rds_cong_generation);
 
 	if (likely(*recent == gen))
 		return 0;
diff --git a/net/rds/ib.h b/net/rds/ib.h
index 7280ab8..e04f4ea 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -128,7 +128,7 @@ struct rds_ib_connection {
 	/* sending acks */
 	unsigned long		i_ack_flags;
 #ifdef KERNEL_HAS_ATOMIC64
-	atomic64_t		i_ack_next;	/* next ACK to send */
+	atomic64_unchecked_t	i_ack_next;	/* next ACK to send */
 #else
 	spinlock_t		i_ack_lock;	/* protect i_ack_next */
 	u64			i_ack_next;	/* next ACK to send */
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 31b74f5..dc1fbfa 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -717,7 +717,7 @@ void rds_ib_conn_shutdown(struct rds_connection *conn)
 	/* Clear the ACK state */
 	clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
 #ifdef KERNEL_HAS_ATOMIC64
-	atomic64_set(&ic->i_ack_next, 0);
+	atomic64_set_unchecked(&ic->i_ack_next, 0);
 #else
 	ic->i_ack_next = 0;
 #endif
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index 8eb9501..0c386ff 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -597,7 +597,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
 static void rds_ib_set_ack(struct rds_ib_connection *ic, u64 seq,
 				int ack_required)
 {
-	atomic64_set(&ic->i_ack_next, seq);
+	atomic64_set_unchecked(&ic->i_ack_next, seq);
 	if (ack_required) {
 		smp_mb__before_clear_bit();
 		set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
@@ -609,7 +609,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
 	clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
 	smp_mb__after_clear_bit();
 
-	return atomic64_read(&ic->i_ack_next);
+	return atomic64_read_unchecked(&ic->i_ack_next);
 }
 #endif
 
diff --git a/net/rds/iw.h b/net/rds/iw.h
index 04ce3b1..48119a6 100644
--- a/net/rds/iw.h
+++ b/net/rds/iw.h
@@ -134,7 +134,7 @@ struct rds_iw_connection {
 	/* sending acks */
 	unsigned long		i_ack_flags;
 #ifdef KERNEL_HAS_ATOMIC64
-	atomic64_t		i_ack_next;	/* next ACK to send */
+	atomic64_unchecked_t	i_ack_next;	/* next ACK to send */
 #else
 	spinlock_t		i_ack_lock;	/* protect i_ack_next */
 	u64			i_ack_next;	/* next ACK to send */
diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c
index a91e1db..cf3053f 100644
--- a/net/rds/iw_cm.c
+++ b/net/rds/iw_cm.c
@@ -663,7 +663,7 @@ void rds_iw_conn_shutdown(struct rds_connection *conn)
 	/* Clear the ACK state */
 	clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
 #ifdef KERNEL_HAS_ATOMIC64
-	atomic64_set(&ic->i_ack_next, 0);
+	atomic64_set_unchecked(&ic->i_ack_next, 0);
 #else
 	ic->i_ack_next = 0;
 #endif
diff --git a/net/rds/iw_recv.c b/net/rds/iw_recv.c
index 4503335..db566b4 100644
--- a/net/rds/iw_recv.c
+++ b/net/rds/iw_recv.c
@@ -427,7 +427,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic)
 static void rds_iw_set_ack(struct rds_iw_connection *ic, u64 seq,
 				int ack_required)
 {
-	atomic64_set(&ic->i_ack_next, seq);
+	atomic64_set_unchecked(&ic->i_ack_next, seq);
 	if (ack_required) {
 		smp_mb__before_clear_bit();
 		set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
@@ -439,7 +439,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic)
 	clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
 	smp_mb__after_clear_bit();
 
-	return atomic64_read(&ic->i_ack_next);
+	return atomic64_read_unchecked(&ic->i_ack_next);
 }
 #endif
 
diff --git a/net/rds/rds.h b/net/rds/rds.h
index ec1d731..90a3a8d 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -449,7 +449,7 @@ struct rds_transport {
 	void (*sync_mr)(void *trans_private, int direction);
 	void (*free_mr)(void *trans_private, int invalidate);
 	void (*flush_mrs)(void);
-};
+} __do_const;
 
 struct rds_sock {
 	struct sock		rs_sk;
diff --git a/net/rds/tcp.c b/net/rds/tcp.c
index edac9ef..16bcb98 100644
--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -59,7 +59,7 @@ void rds_tcp_nonagle(struct socket *sock)
 	int val = 1;
 
 	set_fs(KERNEL_DS);
-	sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __user *)&val,
+	sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __force_user *)&val,
 			      sizeof(val));
 	set_fs(oldfs);
 }
diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c
index 81cf5a4..b5826ff 100644
--- a/net/rds/tcp_send.c
+++ b/net/rds/tcp_send.c
@@ -43,7 +43,7 @@ static void rds_tcp_cork(struct socket *sock, int val)
 
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
-	sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __user *)&val,
+	sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __force_user *)&val,
 			      sizeof(val));
 	set_fs(oldfs);
 }
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index e61aa60..f07cc89 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -40,7 +40,7 @@ static const struct proto_ops rxrpc_rpc_ops;
 __be32 rxrpc_epoch;
 
 /* current debugging ID */
-atomic_t rxrpc_debug_id;
+atomic_unchecked_t rxrpc_debug_id;
 
 /* count of skbs currently in use */
 atomic_t rxrpc_n_skbs;
diff --git a/net/rxrpc/ar-ack.c b/net/rxrpc/ar-ack.c
index e4d9cbc..b229649 100644
--- a/net/rxrpc/ar-ack.c
+++ b/net/rxrpc/ar-ack.c
@@ -175,7 +175,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
 
 	_enter("{%d,%d,%d,%d},",
 	       call->acks_hard, call->acks_unacked,
-	       atomic_read(&call->sequence),
+	       atomic_read_unchecked(&call->sequence),
 	       CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz));
 
 	stop = 0;
@@ -199,7 +199,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
 
 			/* each Tx packet has a new serial number */
 			sp->hdr.serial =
-				htonl(atomic_inc_return(&call->conn->serial));
+				htonl(atomic_inc_return_unchecked(&call->conn->serial));
 
 			hdr = (struct rxrpc_header *) txb->head;
 			hdr->serial = sp->hdr.serial;
@@ -403,7 +403,7 @@ static void rxrpc_rotate_tx_window(struct rxrpc_call *call, u32 hard)
  */
 static void rxrpc_clear_tx_window(struct rxrpc_call *call)
 {
-	rxrpc_rotate_tx_window(call, atomic_read(&call->sequence));
+	rxrpc_rotate_tx_window(call, atomic_read_unchecked(&call->sequence));
 }
 
 /*
@@ -629,7 +629,7 @@ process_further:
 
 		latest = ntohl(sp->hdr.serial);
 		hard = ntohl(ack.firstPacket);
-		tx = atomic_read(&call->sequence);
+		tx = atomic_read_unchecked(&call->sequence);
 
 		_proto("Rx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
 		       latest,
@@ -1161,7 +1161,7 @@ void rxrpc_process_call(struct work_struct *work)
 	goto maybe_reschedule;
 
 send_ACK_with_skew:
-	ack.maxSkew = htons(atomic_read(&call->conn->hi_serial) -
+	ack.maxSkew = htons(atomic_read_unchecked(&call->conn->hi_serial) -
 			    ntohl(ack.serial));
 send_ACK:
 	mtu = call->conn->trans->peer->if_mtu;
@@ -1173,7 +1173,7 @@ send_ACK:
 	ackinfo.rxMTU	= htonl(5692);
 	ackinfo.jumbo_max = htonl(4);
 
-	hdr.serial = htonl(atomic_inc_return(&call->conn->serial));
+	hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial));
 	_proto("Tx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
 	       ntohl(hdr.serial),
 	       ntohs(ack.maxSkew),
@@ -1191,7 +1191,7 @@ send_ACK:
 send_message:
 	_debug("send message");
 
-	hdr.serial = htonl(atomic_inc_return(&call->conn->serial));
+	hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial));
 	_proto("Tx %s %%%u", rxrpc_pkts[hdr.type], ntohl(hdr.serial));
 send_message_2:
 
diff --git a/net/rxrpc/ar-call.c b/net/rxrpc/ar-call.c
index a3bbb36..3341fb9 100644
--- a/net/rxrpc/ar-call.c
+++ b/net/rxrpc/ar-call.c
@@ -83,7 +83,7 @@ static struct rxrpc_call *rxrpc_alloc_call(gfp_t gfp)
 	spin_lock_init(&call->lock);
 	rwlock_init(&call->state_lock);
 	atomic_set(&call->usage, 1);
-	call->debug_id = atomic_inc_return(&rxrpc_debug_id);
+	call->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
 	call->state = RXRPC_CALL_CLIENT_SEND_REQUEST;
 
 	memset(&call->sock_node, 0xed, sizeof(call->sock_node));
diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c
index 4106ca9..a338d7a 100644
--- a/net/rxrpc/ar-connection.c
+++ b/net/rxrpc/ar-connection.c
@@ -206,7 +206,7 @@ static struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp)
 		rwlock_init(&conn->lock);
 		spin_lock_init(&conn->state_lock);
 		atomic_set(&conn->usage, 1);
-		conn->debug_id = atomic_inc_return(&rxrpc_debug_id);
+		conn->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
 		conn->avail_calls = RXRPC_MAXCALLS;
 		conn->size_align = 4;
 		conn->header_size = sizeof(struct rxrpc_header);
diff --git a/net/rxrpc/ar-connevent.c b/net/rxrpc/ar-connevent.c
index e7ed43a..6afa140 100644
--- a/net/rxrpc/ar-connevent.c
+++ b/net/rxrpc/ar-connevent.c
@@ -109,7 +109,7 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn,
 
 	len = iov[0].iov_len + iov[1].iov_len;
 
-	hdr.serial = htonl(atomic_inc_return(&conn->serial));
+	hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial));
 	_proto("Tx CONN ABORT %%%u { %d }", ntohl(hdr.serial), abort_code);
 
 	ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
diff --git a/net/rxrpc/ar-input.c b/net/rxrpc/ar-input.c
index 529572f..c758ca7 100644
--- a/net/rxrpc/ar-input.c
+++ b/net/rxrpc/ar-input.c
@@ -340,9 +340,9 @@ void rxrpc_fast_process_packet(struct rxrpc_call *call, struct sk_buff *skb)
 	/* track the latest serial number on this connection for ACK packet
 	 * information */
 	serial = ntohl(sp->hdr.serial);
-	hi_serial = atomic_read(&call->conn->hi_serial);
+	hi_serial = atomic_read_unchecked(&call->conn->hi_serial);
 	while (serial > hi_serial)
-		hi_serial = atomic_cmpxchg(&call->conn->hi_serial, hi_serial,
+		hi_serial = atomic_cmpxchg_unchecked(&call->conn->hi_serial, hi_serial,
 					   serial);
 
 	/* request ACK generation for any ACK or DATA packet that requests
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index a693aca..81e7293 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -272,8 +272,8 @@ struct rxrpc_connection {
 	int			error;		/* error code for local abort */
 	int			debug_id;	/* debug ID for printks */
 	unsigned int		call_counter;	/* call ID counter */
-	atomic_t		serial;		/* packet serial number counter */
-	atomic_t		hi_serial;	/* highest serial number received */
+	atomic_unchecked_t	serial;		/* packet serial number counter */
+	atomic_unchecked_t	hi_serial;	/* highest serial number received */
 	u8			avail_calls;	/* number of calls available */
 	u8			size_align;	/* data size alignment (for security) */
 	u8			header_size;	/* rxrpc + security header size */
@@ -346,7 +346,7 @@ struct rxrpc_call {
 	spinlock_t		lock;
 	rwlock_t		state_lock;	/* lock for state transition */
 	atomic_t		usage;
-	atomic_t		sequence;	/* Tx data packet sequence counter */
+	atomic_unchecked_t	sequence;	/* Tx data packet sequence counter */
 	u32			abort_code;	/* local/remote abort code */
 	enum {					/* current state of call */
 		RXRPC_CALL_CLIENT_SEND_REQUEST,	/* - client sending request phase */
@@ -420,7 +420,7 @@ static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code)
  */
 extern atomic_t rxrpc_n_skbs;
 extern __be32 rxrpc_epoch;
-extern atomic_t rxrpc_debug_id;
+extern atomic_unchecked_t rxrpc_debug_id;
 extern struct workqueue_struct *rxrpc_workqueue;
 
 /*
diff --git a/net/rxrpc/ar-local.c b/net/rxrpc/ar-local.c
index 87f7135..74d3703 100644
--- a/net/rxrpc/ar-local.c
+++ b/net/rxrpc/ar-local.c
@@ -45,7 +45,7 @@ struct rxrpc_local *rxrpc_alloc_local(struct sockaddr_rxrpc *srx)
 		spin_lock_init(&local->lock);
 		rwlock_init(&local->services_lock);
 		atomic_set(&local->usage, 1);
-		local->debug_id = atomic_inc_return(&rxrpc_debug_id);
+		local->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
 		memcpy(&local->srx, srx, sizeof(*srx));
 	}
 
diff --git a/net/rxrpc/ar-output.c b/net/rxrpc/ar-output.c
index e1ac183..b43e10e 100644
--- a/net/rxrpc/ar-output.c
+++ b/net/rxrpc/ar-output.c
@@ -682,9 +682,9 @@ static int rxrpc_send_data(struct kiocb *iocb,
 			sp->hdr.cid = call->cid;
 			sp->hdr.callNumber = call->call_id;
 			sp->hdr.seq =
-				htonl(atomic_inc_return(&call->sequence));
+				htonl(atomic_inc_return_unchecked(&call->sequence));
 			sp->hdr.serial =
-				htonl(atomic_inc_return(&conn->serial));
+				htonl(atomic_inc_return_unchecked(&conn->serial));
 			sp->hdr.type = RXRPC_PACKET_TYPE_DATA;
 			sp->hdr.userStatus = 0;
 			sp->hdr.securityIndex = conn->security_ix;
diff --git a/net/rxrpc/ar-peer.c b/net/rxrpc/ar-peer.c
index bebaa43..2644591 100644
--- a/net/rxrpc/ar-peer.c
+++ b/net/rxrpc/ar-peer.c
@@ -72,7 +72,7 @@ static struct rxrpc_peer *rxrpc_alloc_peer(struct sockaddr_rxrpc *srx,
 		INIT_LIST_HEAD(&peer->error_targets);
 		spin_lock_init(&peer->lock);
 		atomic_set(&peer->usage, 1);
-		peer->debug_id = atomic_inc_return(&rxrpc_debug_id);
+		peer->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
 		memcpy(&peer->srx, srx, sizeof(*srx));
 
 		rxrpc_assess_MTU_size(peer);
diff --git a/net/rxrpc/ar-proc.c b/net/rxrpc/ar-proc.c
index 38047f7..9f48511 100644
--- a/net/rxrpc/ar-proc.c
+++ b/net/rxrpc/ar-proc.c
@@ -164,8 +164,8 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
 		   atomic_read(&conn->usage),
 		   rxrpc_conn_states[conn->state],
 		   key_serial(conn->key),
-		   atomic_read(&conn->serial),
-		   atomic_read(&conn->hi_serial));
+		   atomic_read_unchecked(&conn->serial),
+		   atomic_read_unchecked(&conn->hi_serial));
 
 	return 0;
 }
diff --git a/net/rxrpc/ar-transport.c b/net/rxrpc/ar-transport.c
index 92df566..87ec1bf 100644
--- a/net/rxrpc/ar-transport.c
+++ b/net/rxrpc/ar-transport.c
@@ -47,7 +47,7 @@ static struct rxrpc_transport *rxrpc_alloc_transport(struct rxrpc_local *local,
 		spin_lock_init(&trans->client_lock);
 		rwlock_init(&trans->conn_lock);
 		atomic_set(&trans->usage, 1);
-		trans->debug_id = atomic_inc_return(&rxrpc_debug_id);
+		trans->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
 
 		if (peer->srx.transport.family == AF_INET) {
 			switch (peer->srx.transport_type) {
diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index f226709..0e735a8 100644
--- a/net/rxrpc/rxkad.c
+++ b/net/rxrpc/rxkad.c
@@ -610,7 +610,7 @@ static int rxkad_issue_challenge(struct rxrpc_connection *conn)
 
 	len = iov[0].iov_len + iov[1].iov_len;
 
-	hdr.serial = htonl(atomic_inc_return(&conn->serial));
+	hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial));
 	_proto("Tx CHALLENGE %%%u", ntohl(hdr.serial));
 
 	ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
@@ -660,7 +660,7 @@ static int rxkad_send_response(struct rxrpc_connection *conn,
 
 	len = iov[0].iov_len + iov[1].iov_len + iov[2].iov_len;
 
-	hdr->serial = htonl(atomic_inc_return(&conn->serial));
+	hdr->serial = htonl(atomic_inc_return_unchecked(&conn->serial));
 	_proto("Tx RESPONSE %%%u", ntohl(hdr->serial));
 
 	ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 3, len);
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 391a245..296b3d7 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -981,7 +981,7 @@ static const struct inet6_protocol sctpv6_protocol = {
 	.flags        = INET6_PROTO_NOPOLICY | INET6_PROTO_FINAL,
 };
 
-static struct sctp_af sctp_af_inet6 = {
+static struct sctp_af sctp_af_inet6 __read_only = {
 	.sa_family	   = AF_INET6,
 	.sctp_xmit	   = sctp_v6_xmit,
 	.setsockopt	   = ipv6_setsockopt,
@@ -1013,7 +1013,7 @@ static struct sctp_af sctp_af_inet6 = {
 #endif
 };
 
-static struct sctp_pf sctp_pf_inet6 = {
+static struct sctp_pf sctp_pf_inet6 __read_only = {
 	.event_msgname = sctp_inet6_event_msgname,
 	.skb_msgname   = sctp_inet6_skb_msgname,
 	.af_supported  = sctp_inet6_af_supported,
@@ -1038,7 +1038,7 @@ void sctp_v6_pf_init(void)
 
 void sctp_v6_pf_exit(void)
 {
-	list_del(&sctp_af_inet6.list);
+	pax_list_del(&sctp_af_inet6.list);
 }
 
 /* Initialize IPv6 support and register with socket layer.  */
diff --git a/net/sctp/probe.c b/net/sctp/probe.c
index ad0dba8..e62c225 100644
--- a/net/sctp/probe.c
+++ b/net/sctp/probe.c
@@ -63,7 +63,7 @@ static struct {
 	struct timespec	  tstart;
 } sctpw;
 
-static void printl(const char *fmt, ...)
+static __printf(1, 2) void printl(const char *fmt, ...)
 {
 	va_list args;
 	int len;
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index ab3bba8..2fbab4e 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -336,7 +336,8 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
 		seq_printf(seq,
 			   "%8pK %8pK %-3d %-3d %-2d %-4d "
 			   "%4d %8d %8d %7d %5lu %-5d %5d ",
-			   assoc, sk, sctp_sk(sk)->type, sk->sk_state,
+			   assoc, sk,
+			   sctp_sk(sk)->type, sk->sk_state,
 			   assoc->state, hash,
 			   assoc->assoc_id,
 			   assoc->sndbuf_used,
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 1c2e46c..f91cf5e 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -834,8 +834,10 @@ int sctp_register_af(struct sctp_af *af)
 		return 0;
 	}
 
+	pax_open_kernel();
 	INIT_LIST_HEAD(&af->list);
-	list_add_tail(&af->list, &sctp_address_families);
+	pax_close_kernel();
+	pax_list_add_tail(&af->list, &sctp_address_families);
 	return 1;
 }
 
@@ -966,7 +968,7 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
 
 static struct sctp_af sctp_af_inet;
 
-static struct sctp_pf sctp_pf_inet = {
+static struct sctp_pf sctp_pf_inet __read_only = {
 	.event_msgname = sctp_inet_event_msgname,
 	.skb_msgname   = sctp_inet_skb_msgname,
 	.af_supported  = sctp_inet_af_supported,
@@ -1037,7 +1039,7 @@ static const struct net_protocol sctp_protocol = {
 };
 
 /* IPv4 address related functions.  */
-static struct sctp_af sctp_af_inet = {
+static struct sctp_af sctp_af_inet __read_only = {
 	.sa_family	   = AF_INET,
 	.sctp_xmit	   = sctp_v4_xmit,
 	.setsockopt	   = ip_setsockopt,
@@ -1122,7 +1124,7 @@ static void sctp_v4_pf_init(void)
 
 static void sctp_v4_pf_exit(void)
 {
-	list_del(&sctp_af_inet.list);
+	pax_list_del(&sctp_af_inet.list);
 }
 
 static int sctp_v4_protosw_init(void)
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 8aab894..f6b7e7d 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -447,7 +447,7 @@ static void sctp_generate_sack_event(unsigned long data)
 	sctp_generate_timeout_event(asoc, SCTP_EVENT_TIMEOUT_SACK);
 }
 
-sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
+sctp_timer_event_t * const sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
 	NULL,
 	sctp_generate_t1_cookie_event,
 	sctp_generate_t1_init_event,
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index b907073..57fef6c 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2166,11 +2166,13 @@ static int sctp_setsockopt_events(struct sock *sk, char __user *optval,
 {
 	struct sctp_association *asoc;
 	struct sctp_ulpevent *event;
+	struct sctp_event_subscribe subscribe;
 
 	if (optlen > sizeof(struct sctp_event_subscribe))
 		return -EINVAL;
-	if (copy_from_user(&sctp_sk(sk)->subscribe, optval, optlen))
+	if (copy_from_user(&subscribe, optval, optlen))
 		return -EFAULT;
+	sctp_sk(sk)->subscribe = subscribe;
 
 	/*
 	 * At the time when a user app subscribes to SCTP_SENDER_DRY_EVENT,
@@ -4215,13 +4217,16 @@ static int sctp_getsockopt_disable_fragments(struct sock *sk, int len,
 static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,
 				  int __user *optlen)
 {
+	struct sctp_event_subscribe subscribe;
+
 	if (len <= 0)
 		return -EINVAL;
 	if (len > sizeof(struct sctp_event_subscribe))
 		len = sizeof(struct sctp_event_subscribe);
 	if (put_user(len, optlen))
 		return -EFAULT;
-	if (copy_to_user(optval, &sctp_sk(sk)->subscribe, len))
+	subscribe = sctp_sk(sk)->subscribe;
+	if (copy_to_user(optval, &subscribe, len))
 		return -EFAULT;
 	return 0;
 }
@@ -4239,6 +4244,8 @@ static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,
  */
 static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optval, int __user *optlen)
 {
+	__u32 autoclose;
+
 	/* Applicable to UDP-style socket only */
 	if (sctp_style(sk, TCP))
 		return -EOPNOTSUPP;
@@ -4247,7 +4254,8 @@ static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optv
 	len = sizeof(int);
 	if (put_user(len, optlen))
 		return -EFAULT;
-	if (copy_to_user(optval, &sctp_sk(sk)->autoclose, sizeof(int)))
+	autoclose = sctp_sk(sk)->autoclose;
+	if (copy_to_user(optval, &autoclose, sizeof(int)))
 		return -EFAULT;
 	return 0;
 }
@@ -4619,12 +4627,15 @@ static int sctp_getsockopt_delayed_ack(struct sock *sk, int len,
  */
 static int sctp_getsockopt_initmsg(struct sock *sk, int len, char __user *optval, int __user *optlen)
 {
+	struct sctp_initmsg initmsg;
+
 	if (len < sizeof(struct sctp_initmsg))
 		return -EINVAL;
 	len = sizeof(struct sctp_initmsg);
 	if (put_user(len, optlen))
 		return -EFAULT;
-	if (copy_to_user(optval, &sctp_sk(sk)->initmsg, len))
+	initmsg = sctp_sk(sk)->initmsg;
+	if (copy_to_user(optval, &initmsg, len))
 		return -EFAULT;
 	return 0;
 }
@@ -4665,6 +4676,8 @@ static int sctp_getsockopt_peer_addrs(struct sock *sk, int len,
 		addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
 		if (space_left < addrlen)
 			return -ENOMEM;
+		if (addrlen > sizeof(temp) || addrlen < 0)
+			return -EFAULT;
 		if (copy_to_user(to, &temp, addrlen))
 			return -EFAULT;
 		to += addrlen;
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index bf3c6e8..376d8d0 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -307,7 +307,7 @@ static int proc_sctp_do_hmac_alg(ctl_table *ctl,
 {
 	struct net *net = current->nsproxy->net_ns;
 	char tmp[8];
-	ctl_table tbl;
+	ctl_table_no_const tbl;
 	int ret;
 	int changed = 0;
 	char *none = "none";
@@ -350,7 +350,7 @@ static int proc_sctp_do_hmac_alg(ctl_table *ctl,
 
 int sctp_sysctl_net_register(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 	int i;
 
 	table = kmemdup(sctp_net_table, sizeof(sctp_net_table), GFP_KERNEL);
diff --git a/net/socket.c b/net/socket.c
index 88f759a..c6933de 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -88,6 +88,7 @@
 #include <linux/magic.h>
 #include <linux/slab.h>
 #include <linux/xattr.h>
+#include <linux/in.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -105,6 +106,8 @@
 #include <linux/sockios.h>
 #include <linux/atalk.h>
 
+#include <linux/grsock.h>
+
 static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
 static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
 			 unsigned long nr_segs, loff_t pos);
@@ -321,7 +324,7 @@ static struct dentry *sockfs_mount(struct file_system_type *fs_type,
 		&sockfs_dentry_operations, SOCKFS_MAGIC);
 }
 
-static struct vfsmount *sock_mnt __read_mostly;
+struct vfsmount *sock_mnt __read_mostly;
 
 static struct file_system_type sock_fs_type = {
 	.name =		"sockfs",
@@ -1268,6 +1271,8 @@ int __sock_create(struct net *net, int family, int type, int protocol,
 		return -EAFNOSUPPORT;
 	if (type < 0 || type >= SOCK_MAX)
 		return -EINVAL;
+	if (protocol < 0)
+		return -EINVAL;
 
 	/* Compatibility.
 
@@ -1399,6 +1404,16 @@ SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
 	if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK))
 		flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK;
 
+	if(!gr_search_socket(family, type, protocol)) {
+		retval = -EACCES;
+		goto out;
+	}
+
+	if (gr_handle_sock_all(family, type, protocol)) {
+		retval = -EACCES;
+		goto out;
+	}
+
 	retval = sock_create(family, type, protocol, &sock);
 	if (retval < 0)
 		goto out;
@@ -1526,6 +1541,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
 	if (sock) {
 		err = move_addr_to_kernel(umyaddr, addrlen, &address);
 		if (err >= 0) {
+			if (gr_handle_sock_server((struct sockaddr *)&address)) {
+				err = -EACCES;
+				goto error;
+			}
+			err = gr_search_bind(sock, (struct sockaddr_in *)&address);
+			if (err)
+				goto error;
+
 			err = security_socket_bind(sock,
 						   (struct sockaddr *)&address,
 						   addrlen);
@@ -1534,6 +1557,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
 						      (struct sockaddr *)
 						      &address, addrlen);
 		}
+error:
 		fput_light(sock->file, fput_needed);
 	}
 	return err;
@@ -1557,10 +1581,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, backlog)
 		if ((unsigned int)backlog > somaxconn)
 			backlog = somaxconn;
 
+		if (gr_handle_sock_server_other(sock->sk)) {
+			err = -EPERM;
+			goto error;
+		}
+
+		err = gr_search_listen(sock);
+		if (err)
+			goto error;
+
 		err = security_socket_listen(sock, backlog);
 		if (!err)
 			err = sock->ops->listen(sock, backlog);
 
+error:
 		fput_light(sock->file, fput_needed);
 	}
 	return err;
@@ -1604,6 +1638,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
 	newsock->type = sock->type;
 	newsock->ops = sock->ops;
 
+	if (gr_handle_sock_server_other(sock->sk)) {
+		err = -EPERM;
+		sock_release(newsock);
+		goto out_put;
+	}
+
+	err = gr_search_accept(sock);
+	if (err) {
+		sock_release(newsock);
+		goto out_put;
+	}
+
 	/*
 	 * We don't need try_module_get here, as the listening socket (sock)
 	 * has the protocol module (sock->ops->owner) held.
@@ -1649,6 +1695,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
 	fd_install(newfd, newfile);
 	err = newfd;
 
+	gr_attach_curr_ip(newsock->sk);
+
 out_put:
 	fput_light(sock->file, fput_needed);
 out:
@@ -1681,6 +1729,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
 		int, addrlen)
 {
 	struct socket *sock;
+	struct sockaddr *sck;
 	struct sockaddr_storage address;
 	int err, fput_needed;
 
@@ -1691,6 +1740,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
 	if (err < 0)
 		goto out_put;
 
+	sck = (struct sockaddr *)&address;
+
+	if (gr_handle_sock_client(sck)) {
+		err = -EACCES;
+		goto out_put;
+	}
+
+	err = gr_search_connect(sock, (struct sockaddr_in *)sck);
+	if (err)
+		goto out_put;
+
 	err =
 	    security_socket_connect(sock, (struct sockaddr *)&address, addrlen);
 	if (err)
@@ -1772,6 +1832,8 @@ SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr,
  *	the protocol.
  */
 
+asmlinkage long sys_sendto(int, void *, size_t, unsigned, struct sockaddr *, int);
+
 SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len,
 		unsigned int, flags, struct sockaddr __user *, addr,
 		int, addr_len)
@@ -1838,7 +1900,7 @@ SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,
 	struct socket *sock;
 	struct iovec iov;
 	struct msghdr msg;
-	struct sockaddr_storage address;
+	struct sockaddr_storage address = { };
 	int err, err2;
 	int fput_needed;
 
@@ -2045,7 +2107,7 @@ static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
 		 * checking falls down on this.
 		 */
 		if (copy_from_user(ctl_buf,
-				   (void __user __force *)msg_sys->msg_control,
+				   (void __force_user *)msg_sys->msg_control,
 				   ctl_len))
 			goto out_freectl;
 		msg_sys->msg_control = ctl_buf;
@@ -2185,7 +2247,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
 	int err, total_len, len;
 
 	/* kernel mode address */
-	struct sockaddr_storage addr;
+	struct sockaddr_storage addr = { };
 
 	/* user mode address pointers */
 	struct sockaddr __user *uaddr;
@@ -2213,7 +2275,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
 	 *      kernel msghdr to use the kernel address space)
 	 */
 
-	uaddr = (__force void __user *)msg_sys->msg_name;
+	uaddr = (void __force_user *)msg_sys->msg_name;
 	uaddr_len = COMPAT_NAMELEN(msg);
 	if (MSG_CMSG_COMPAT & flags) {
 		err = verify_compat_iovec(msg_sys, iov, &addr, VERIFY_WRITE);
@@ -2952,7 +3014,7 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
 		old_fs = get_fs();
 		set_fs(KERNEL_DS);
 		err = dev_ioctl(net, cmd,
-				(struct ifreq __user __force *) &kifr);
+				(struct ifreq __force_user *) &kifr);
 		set_fs(old_fs);
 
 		return err;
@@ -3061,7 +3123,7 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
 
 	old_fs = get_fs();
 	set_fs(KERNEL_DS);
-	err = dev_ioctl(net, cmd, (void  __user __force *)&ifr);
+	err = dev_ioctl(net, cmd, (void  __force_user *)&ifr);
 	set_fs(old_fs);
 
 	if (cmd == SIOCGIFMAP && !err) {
@@ -3166,7 +3228,7 @@ static int routing_ioctl(struct net *net, struct socket *sock,
 		ret |= __get_user(rtdev, &(ur4->rt_dev));
 		if (rtdev) {
 			ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
-			r4.rt_dev = (char __user __force *)devname;
+			r4.rt_dev = (char __force_user *)devname;
 			devname[15] = 0;
 		} else
 			r4.rt_dev = NULL;
@@ -3392,8 +3454,8 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
 	int __user *uoptlen;
 	int err;
 
-	uoptval = (char __user __force *) optval;
-	uoptlen = (int __user __force *) optlen;
+	uoptval = (char __force_user *) optval;
+	uoptlen = (int __force_user *) optlen;
 
 	set_fs(KERNEL_DS);
 	if (level == SOL_SOCKET)
@@ -3413,7 +3475,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
 	char __user *uoptval;
 	int err;
 
-	uoptval = (char __user __force *) optval;
+	uoptval = (char __force_user *) optval;
 
 	set_fs(KERNEL_DS);
 	if (level == SOL_SOCKET)
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index d5f35f1..da2680b5 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1283,7 +1283,9 @@ call_start(struct rpc_task *task)
 			(RPC_IS_ASYNC(task) ? "async" : "sync"));
 
 	/* Increment call count */
-	task->tk_msg.rpc_proc->p_count++;
+	pax_open_kernel();
+	(*(unsigned int *)&task->tk_msg.rpc_proc->p_count)++;
+	pax_close_kernel();
 	clnt->cl_stats->rpccnt++;
 	task->tk_action = call_reserve;
 }
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index f8529fc..ce8c643 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -261,9 +261,9 @@ static int rpc_wait_bit_killable(void *word)
 #ifdef RPC_DEBUG
 static void rpc_task_set_debuginfo(struct rpc_task *task)
 {
-	static atomic_t rpc_pid;
+	static atomic_unchecked_t rpc_pid;
 
-	task->tk_pid = atomic_inc_return(&rpc_pid);
+	task->tk_pid = atomic_inc_return_unchecked(&rpc_pid);
 }
 #else
 static inline void rpc_task_set_debuginfo(struct rpc_task *task)
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 89a588b..ba2cef8 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -1160,7 +1160,9 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
 	svc_putnl(resv, RPC_SUCCESS);
 
 	/* Bump per-procedure stats counter */
-	procp->pc_count++;
+	pax_open_kernel();
+	(*(unsigned int *)&procp->pc_count)++;
+	pax_close_kernel();
 
 	/* Initialize storage for argp and resp */
 	memset(rqstp->rq_argp, 0, procp->pc_argsize);
diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c
index 8343737..677025e 100644
--- a/net/sunrpc/xprtrdma/svc_rdma.c
+++ b/net/sunrpc/xprtrdma/svc_rdma.c
@@ -62,15 +62,15 @@ unsigned int svcrdma_max_req_size = RPCRDMA_MAX_REQ_SIZE;
 static unsigned int min_max_inline = 4096;
 static unsigned int max_max_inline = 65536;
 
-atomic_t rdma_stat_recv;
-atomic_t rdma_stat_read;
-atomic_t rdma_stat_write;
-atomic_t rdma_stat_sq_starve;
-atomic_t rdma_stat_rq_starve;
-atomic_t rdma_stat_rq_poll;
-atomic_t rdma_stat_rq_prod;
-atomic_t rdma_stat_sq_poll;
-atomic_t rdma_stat_sq_prod;
+atomic_unchecked_t rdma_stat_recv;
+atomic_unchecked_t rdma_stat_read;
+atomic_unchecked_t rdma_stat_write;
+atomic_unchecked_t rdma_stat_sq_starve;
+atomic_unchecked_t rdma_stat_rq_starve;
+atomic_unchecked_t rdma_stat_rq_poll;
+atomic_unchecked_t rdma_stat_rq_prod;
+atomic_unchecked_t rdma_stat_sq_poll;
+atomic_unchecked_t rdma_stat_sq_prod;
 
 /* Temporary NFS request map and context caches */
 struct kmem_cache *svc_rdma_map_cachep;
@@ -110,7 +110,7 @@ static int read_reset_stat(ctl_table *table, int write,
 		len -= *ppos;
 		if (len > *lenp)
 			len = *lenp;
-		if (len && copy_to_user(buffer, str_buf, len))
+		if (len > sizeof str_buf || (len && copy_to_user(buffer, str_buf, len)))
 			return -EFAULT;
 		*lenp = len;
 		*ppos += len;
@@ -151,63 +151,63 @@ static ctl_table svcrdma_parm_table[] = {
 	{
 		.procname	= "rdma_stat_read",
 		.data		= &rdma_stat_read,
-		.maxlen		= sizeof(atomic_t),
+		.maxlen		= sizeof(atomic_unchecked_t),
 		.mode		= 0644,
 		.proc_handler	= read_reset_stat,
 	},
 	{
 		.procname	= "rdma_stat_recv",
 		.data		= &rdma_stat_recv,
-		.maxlen		= sizeof(atomic_t),
+		.maxlen		= sizeof(atomic_unchecked_t),
 		.mode		= 0644,
 		.proc_handler	= read_reset_stat,
 	},
 	{
 		.procname	= "rdma_stat_write",
 		.data		= &rdma_stat_write,
-		.maxlen		= sizeof(atomic_t),
+		.maxlen		= sizeof(atomic_unchecked_t),
 		.mode		= 0644,
 		.proc_handler	= read_reset_stat,
 	},
 	{
 		.procname	= "rdma_stat_sq_starve",
 		.data		= &rdma_stat_sq_starve,
-		.maxlen		= sizeof(atomic_t),
+		.maxlen		= sizeof(atomic_unchecked_t),
 		.mode		= 0644,
 		.proc_handler	= read_reset_stat,
 	},
 	{
 		.procname	= "rdma_stat_rq_starve",
 		.data		= &rdma_stat_rq_starve,
-		.maxlen		= sizeof(atomic_t),
+		.maxlen		= sizeof(atomic_unchecked_t),
 		.mode		= 0644,
 		.proc_handler	= read_reset_stat,
 	},
 	{
 		.procname	= "rdma_stat_rq_poll",
 		.data		= &rdma_stat_rq_poll,
-		.maxlen		= sizeof(atomic_t),
+		.maxlen		= sizeof(atomic_unchecked_t),
 		.mode		= 0644,
 		.proc_handler	= read_reset_stat,
 	},
 	{
 		.procname	= "rdma_stat_rq_prod",
 		.data		= &rdma_stat_rq_prod,
-		.maxlen		= sizeof(atomic_t),
+		.maxlen		= sizeof(atomic_unchecked_t),
 		.mode		= 0644,
 		.proc_handler	= read_reset_stat,
 	},
 	{
 		.procname	= "rdma_stat_sq_poll",
 		.data		= &rdma_stat_sq_poll,
-		.maxlen		= sizeof(atomic_t),
+		.maxlen		= sizeof(atomic_unchecked_t),
 		.mode		= 0644,
 		.proc_handler	= read_reset_stat,
 	},
 	{
 		.procname	= "rdma_stat_sq_prod",
 		.data		= &rdma_stat_sq_prod,
-		.maxlen		= sizeof(atomic_t),
+		.maxlen		= sizeof(atomic_unchecked_t),
 		.mode		= 0644,
 		.proc_handler	= read_reset_stat,
 	},
diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
index 0ce7552..d074459 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
@@ -501,7 +501,7 @@ next_sge:
 			svc_rdma_put_context(ctxt, 0);
 			goto out;
 		}
-		atomic_inc(&rdma_stat_read);
+		atomic_inc_unchecked(&rdma_stat_read);
 
 		if (read_wr.num_sge < chl_map->ch[ch_no].count) {
 			chl_map->ch[ch_no].count -= read_wr.num_sge;
@@ -611,7 +611,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
 				  dto_q);
 		list_del_init(&ctxt->dto_q);
 	} else {
-		atomic_inc(&rdma_stat_rq_starve);
+		atomic_inc_unchecked(&rdma_stat_rq_starve);
 		clear_bit(XPT_DATA, &xprt->xpt_flags);
 		ctxt = NULL;
 	}
@@ -631,7 +631,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
 	dprintk("svcrdma: processing ctxt=%p on xprt=%p, rqstp=%p, status=%d\n",
 		ctxt, rdma_xprt, rqstp, ctxt->wc_status);
 	BUG_ON(ctxt->wc_status != IB_WC_SUCCESS);
-	atomic_inc(&rdma_stat_recv);
+	atomic_inc_unchecked(&rdma_stat_recv);
 
 	/* Build up the XDR from the receive buffers. */
 	rdma_build_arg_xdr(rqstp, ctxt, ctxt->byte_len);
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
index c1d124d..acfc59e 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
@@ -362,7 +362,7 @@ static int send_write(struct svcxprt_rdma *xprt, struct svc_rqst *rqstp,
 	write_wr.wr.rdma.remote_addr = to;
 
 	/* Post It */
-	atomic_inc(&rdma_stat_write);
+	atomic_inc_unchecked(&rdma_stat_write);
 	if (svc_rdma_send(xprt, &write_wr))
 		goto err;
 	return 0;
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index 62e4f9b..dd3f2d7 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -292,7 +292,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt)
 		return;
 
 	ib_req_notify_cq(xprt->sc_rq_cq, IB_CQ_NEXT_COMP);
-	atomic_inc(&rdma_stat_rq_poll);
+	atomic_inc_unchecked(&rdma_stat_rq_poll);
 
 	while ((ret = ib_poll_cq(xprt->sc_rq_cq, 1, &wc)) > 0) {
 		ctxt = (struct svc_rdma_op_ctxt *)(unsigned long)wc.wr_id;
@@ -314,7 +314,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt)
 	}
 
 	if (ctxt)
-		atomic_inc(&rdma_stat_rq_prod);
+		atomic_inc_unchecked(&rdma_stat_rq_prod);
 
 	set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
 	/*
@@ -386,7 +386,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
 		return;
 
 	ib_req_notify_cq(xprt->sc_sq_cq, IB_CQ_NEXT_COMP);
-	atomic_inc(&rdma_stat_sq_poll);
+	atomic_inc_unchecked(&rdma_stat_sq_poll);
 	while ((ret = ib_poll_cq(cq, 1, &wc)) > 0) {
 		if (wc.status != IB_WC_SUCCESS)
 			/* Close the transport */
@@ -404,7 +404,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
 	}
 
 	if (ctxt)
-		atomic_inc(&rdma_stat_sq_prod);
+		atomic_inc_unchecked(&rdma_stat_sq_prod);
 }
 
 static void sq_comp_handler(struct ib_cq *cq, void *cq_context)
@@ -1262,7 +1262,7 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr)
 		spin_lock_bh(&xprt->sc_lock);
 		if (xprt->sc_sq_depth < atomic_read(&xprt->sc_sq_count) + wr_count) {
 			spin_unlock_bh(&xprt->sc_lock);
-			atomic_inc(&rdma_stat_sq_starve);
+			atomic_inc_unchecked(&rdma_stat_sq_starve);
 
 			/* See if we can opportunistically reap SQ WR to make room */
 			sq_cq_reap(xprt);
diff --git a/net/sysctl_net.c b/net/sysctl_net.c
index 9bc6db0..47ac8c0 100644
--- a/net/sysctl_net.c
+++ b/net/sysctl_net.c
@@ -46,7 +46,7 @@ static int net_ctl_permissions(struct ctl_table_header *head,
 	kgid_t root_gid = make_kgid(net->user_ns, 0);
 
 	/* Allow network administrator to have same access as root. */
-	if (ns_capable(net->user_ns, CAP_NET_ADMIN) ||
+	if (ns_capable_nolog(net->user_ns, CAP_NET_ADMIN) ||
 	    uid_eq(root_uid, current_uid())) {
 		int mode = (table->mode >> 6) & 7;
 		return (mode << 6) | (mode << 3) | mode;
diff --git a/net/tipc/link.c b/net/tipc/link.c
index daa6080..2bbbe70 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1201,7 +1201,7 @@ static int link_send_sections_long(struct tipc_port *sender,
 	struct tipc_msg fragm_hdr;
 	struct sk_buff *buf, *buf_chain, *prev;
 	u32 fragm_crs, fragm_rest, hsz, sect_rest;
-	const unchar *sect_crs;
+	const unchar __user *sect_crs;
 	int curr_sect;
 	u32 fragm_no;
 
@@ -1242,7 +1242,7 @@ again:
 
 		if (!sect_rest) {
 			sect_rest = msg_sect[++curr_sect].iov_len;
-			sect_crs = (const unchar *)msg_sect[curr_sect].iov_base;
+			sect_crs = (const unchar __user *)msg_sect[curr_sect].iov_base;
 		}
 
 		if (sect_rest < fragm_rest)
@@ -1261,7 +1261,7 @@ error:
 			}
 		} else
 			skb_copy_to_linear_data_offset(buf, fragm_crs,
-						       sect_crs, sz);
+						       (const void __force_kernel *)sect_crs, sz);
 		sect_crs += sz;
 		sect_rest -= sz;
 		fragm_crs += sz;
@@ -2306,8 +2306,11 @@ static int link_recv_changeover_msg(struct tipc_link **l_ptr,
 	struct tipc_msg *tunnel_msg = buf_msg(tunnel_buf);
 	u32 msg_typ = msg_type(tunnel_msg);
 	u32 msg_count = msg_msgcnt(tunnel_msg);
+	u32 bearer_id = msg_bearer_id(tunnel_msg);
 
-	dest_link = (*l_ptr)->owner->links[msg_bearer_id(tunnel_msg)];
+	if (bearer_id >= MAX_BEARERS)
+		goto exit;
+	dest_link = (*l_ptr)->owner->links[bearer_id];
 	if (!dest_link)
 		goto exit;
 	if (dest_link == *l_ptr) {
@@ -2521,14 +2524,16 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb,
 		struct tipc_msg *imsg = (struct tipc_msg *)msg_data(fragm);
 		u32 msg_sz = msg_size(imsg);
 		u32 fragm_sz = msg_data_sz(fragm);
-		u32 exp_fragm_cnt = msg_sz/fragm_sz + !!(msg_sz % fragm_sz);
+		u32 exp_fragm_cnt;
 		u32 max =  TIPC_MAX_USER_MSG_SIZE + NAMED_H_SIZE;
+
 		if (msg_type(imsg) == TIPC_MCAST_MSG)
 			max = TIPC_MAX_USER_MSG_SIZE + MCAST_H_SIZE;
-		if (msg_size(imsg) > max) {
+		if (fragm_sz == 0 || msg_size(imsg) > max) {
 			kfree_skb(fbuf);
 			return 0;
 		}
+		exp_fragm_cnt = msg_sz / fragm_sz + !!(msg_sz % fragm_sz);
 		pbuf = tipc_buf_acquire(msg_size(imsg));
 		if (pbuf != NULL) {
 			pbuf->next = *pending;
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index f2db8a8..9245aa4 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -98,7 +98,7 @@ int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
 					      msg_sect[cnt].iov_len);
 		else
 			skb_copy_to_linear_data_offset(*buf, pos,
-						       msg_sect[cnt].iov_base,
+						       (const void __force_kernel *)msg_sect[cnt].iov_base,
 						       msg_sect[cnt].iov_len);
 		pos += msg_sect[cnt].iov_len;
 	}
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index 6b42d47..2ac24d5 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -96,7 +96,7 @@ static void subscr_send_event(struct tipc_subscription *sub,
 {
 	struct iovec msg_sect;
 
-	msg_sect.iov_base = (void *)&sub->evt;
+	msg_sect.iov_base = (void __force_user *)&sub->evt;
 	msg_sect.iov_len = sizeof(struct tipc_event);
 
 	sub->evt.event = htohl(event, sub->swap);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 2db702d..09a77488 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -783,6 +783,12 @@ static struct sock *unix_find_other(struct net *net,
 		err = -ECONNREFUSED;
 		if (!S_ISSOCK(inode->i_mode))
 			goto put_fail;
+
+		if (!gr_acl_handle_unix(path.dentry, path.mnt)) {
+			err = -EACCES;
+			goto put_fail;
+		}
+
 		u = unix_find_socket_byinode(inode);
 		if (!u)
 			goto put_fail;
@@ -803,6 +809,13 @@ static struct sock *unix_find_other(struct net *net,
 		if (u) {
 			struct dentry *dentry;
 			dentry = unix_sk(u)->path.dentry;
+
+			if (!gr_handle_chroot_unix(pid_vnr(u->sk_peer_pid))) {
+				err = -EPERM;
+				sock_put(u);
+				goto fail;
+			}
+
 			if (dentry)
 				touch_atime(&unix_sk(u)->path);
 		} else
@@ -836,12 +849,18 @@ static int unix_mknod(const char *sun_path, umode_t mode, struct path *res)
 	 */
 	err = security_path_mknod(&path, dentry, mode, 0);
 	if (!err) {
+		if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
+			err = -EACCES;
+			goto out;
+		}
 		err = vfs_mknod(path.dentry->d_inode, dentry, mode, 0);
 		if (!err) {
 			res->mnt = mntget(path.mnt);
 			res->dentry = dget(dentry);
+			gr_handle_create(dentry, path.mnt);
 		}
 	}
+out:
 	done_path_create(&path, dentry);
 	return err;
 }
@@ -2323,9 +2342,13 @@ static int unix_seq_show(struct seq_file *seq, void *v)
 		seq_puts(seq, "Num       RefCount Protocol Flags    Type St "
 			 "Inode Path\n");
 	else {
-		struct sock *s = v;
+		struct sock *s = v, *peer;
 		struct unix_sock *u = unix_sk(s);
 		unix_state_lock(s);
+		peer = unix_peer(s);
+		unix_state_unlock(s);
+
+		unix_state_double_lock(s, peer);
 
 		seq_printf(seq, "%pK: %08X %08X %08X %04X %02X %5lu",
 			s,
@@ -2352,8 +2375,10 @@ static int unix_seq_show(struct seq_file *seq, void *v)
 			}
 			for ( ; i < len; i++)
 				seq_putc(seq, u->addr->name->sun_path[i]);
-		}
-		unix_state_unlock(s);
+		} else if (peer)
+			seq_printf(seq, " P%lu", sock_i_ino(peer));
+
+		unix_state_double_unlock(s, peer);
 		seq_putc(seq, '\n');
 	}
 
diff --git a/net/unix/sysctl_net_unix.c b/net/unix/sysctl_net_unix.c
index 8800604..0526440 100644
--- a/net/unix/sysctl_net_unix.c
+++ b/net/unix/sysctl_net_unix.c
@@ -28,7 +28,7 @@ static ctl_table unix_table[] = {
 
 int __net_init unix_sysctl_register(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(unix_table, sizeof(unix_table), GFP_KERNEL);
 	if (table == NULL)
diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
index c8717c1..08539f5 100644
--- a/net/wireless/wext-core.c
+++ b/net/wireless/wext-core.c
@@ -748,8 +748,7 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
 		 */
 
 		/* Support for very large requests */
-		if ((descr->flags & IW_DESCR_FLAG_NOMAX) &&
-		    (user_length > descr->max_tokens)) {
+		if (user_length > descr->max_tokens) {
 			/* Allow userspace to GET more than max so
 			 * we can support any size GET requests.
 			 * There is still a limit : -ENOMEM.
@@ -788,22 +787,6 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
 		}
 	}
 
-	if (IW_IS_GET(cmd) && !(descr->flags & IW_DESCR_FLAG_NOMAX)) {
-		/*
-		 * If this is a GET, but not NOMAX, it means that the extra
-		 * data is not bounded by userspace, but by max_tokens. Thus
-		 * set the length to max_tokens. This matches the extra data
-		 * allocation.
-		 * The driver should fill it with the number of tokens it
-		 * provided, and it may check iwp->length rather than having
-		 * knowledge of max_tokens. If the driver doesn't change the
-		 * iwp->length, this ioctl just copies back max_token tokens
-		 * filled with zeroes. Hopefully the driver isn't claiming
-		 * them to be valid data.
-		 */
-		iwp->length = descr->max_tokens;
-	}
-
 	err = handler(dev, info, (union iwreq_data *) iwp, extra);
 
 	iwp->length += essid_compat;
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 167c67d..3f2ae427 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -334,7 +334,7 @@ static void xfrm_policy_kill(struct xfrm_policy *policy)
 {
 	policy->walk.dead = 1;
 
-	atomic_inc(&policy->genid);
+	atomic_inc_unchecked(&policy->genid);
 
 	del_timer(&policy->polq.hold_timer);
 	xfrm_queue_purge(&policy->polq.hold_queue);
@@ -659,7 +659,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
 		hlist_add_head(&policy->bydst, chain);
 	xfrm_pol_hold(policy);
 	net->xfrm.policy_count[dir]++;
-	atomic_inc(&flow_cache_genid);
+	atomic_inc_unchecked(&flow_cache_genid);
 	rt_genid_bump(net);
 	if (delpol) {
 		xfrm_policy_requeue(delpol, policy);
@@ -1611,7 +1611,7 @@ free_dst:
 	goto out;
 }
 
-static int inline
+static inline int
 xfrm_dst_alloc_copy(void **target, const void *src, int size)
 {
 	if (!*target) {
@@ -1623,7 +1623,7 @@ xfrm_dst_alloc_copy(void **target, const void *src, int size)
 	return 0;
 }
 
-static int inline
+static inline int
 xfrm_dst_update_parent(struct dst_entry *dst, const struct xfrm_selector *sel)
 {
 #ifdef CONFIG_XFRM_SUB_POLICY
@@ -1635,7 +1635,7 @@ xfrm_dst_update_parent(struct dst_entry *dst, const struct xfrm_selector *sel)
 #endif
 }
 
-static int inline
+static inline int
 xfrm_dst_update_origin(struct dst_entry *dst, const struct flowi *fl)
 {
 #ifdef CONFIG_XFRM_SUB_POLICY
@@ -1729,7 +1729,7 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols,
 
 	xdst->num_pols = num_pols;
 	memcpy(xdst->pols, pols, sizeof(struct xfrm_policy*) * num_pols);
-	xdst->policy_genid = atomic_read(&pols[0]->genid);
+	xdst->policy_genid = atomic_read_unchecked(&pols[0]->genid);
 
 	return xdst;
 }
@@ -2598,7 +2598,7 @@ static int xfrm_bundle_ok(struct xfrm_dst *first)
 		if (xdst->xfrm_genid != dst->xfrm->genid)
 			return 0;
 		if (xdst->num_pols > 0 &&
-		    xdst->policy_genid != atomic_read(&xdst->pols[0]->genid))
+		    xdst->policy_genid != atomic_read_unchecked(&xdst->pols[0]->genid))
 			return 0;
 
 		mtu = dst_mtu(dst->child);
@@ -2686,8 +2686,11 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
 			dst_ops->link_failure = xfrm_link_failure;
 		if (likely(dst_ops->neigh_lookup == NULL))
 			dst_ops->neigh_lookup = xfrm_neigh_lookup;
-		if (likely(afinfo->garbage_collect == NULL))
-			afinfo->garbage_collect = xfrm_garbage_collect_deferred;
+		if (likely(afinfo->garbage_collect == NULL)) {
+			pax_open_kernel();
+			*(void **)&afinfo->garbage_collect = xfrm_garbage_collect_deferred;
+			pax_close_kernel();
+		}
 		rcu_assign_pointer(xfrm_policy_afinfo[afinfo->family], afinfo);
 	}
 	spin_unlock(&xfrm_policy_afinfo_lock);
@@ -2741,7 +2744,9 @@ int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo)
 		dst_ops->check = NULL;
 		dst_ops->negative_advice = NULL;
 		dst_ops->link_failure = NULL;
-		afinfo->garbage_collect = NULL;
+		pax_open_kernel();
+		*(void **)&afinfo->garbage_collect = NULL;
+		pax_close_kernel();
 	}
 	return err;
 }
@@ -3124,7 +3129,7 @@ static int xfrm_policy_migrate(struct xfrm_policy *pol,
 			       sizeof(pol->xfrm_vec[i].saddr));
 			pol->xfrm_vec[i].encap_family = mp->new_family;
 			/* flush bundles */
-			atomic_inc(&pol->genid);
+			atomic_inc_unchecked(&pol->genid);
 		}
 	}
 
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 2c341bd..4404211 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -177,12 +177,14 @@ int xfrm_register_type(const struct xfrm_type *type, unsigned short family)
 
 	if (unlikely(afinfo == NULL))
 		return -EAFNOSUPPORT;
-	typemap = afinfo->type_map;
+	typemap = (const struct xfrm_type **)afinfo->type_map;
 	spin_lock_bh(&xfrm_type_lock);
 
-	if (likely(typemap[type->proto] == NULL))
+	if (likely(typemap[type->proto] == NULL)) {
+		pax_open_kernel();
 		typemap[type->proto] = type;
-	else
+		pax_close_kernel();
+	} else
 		err = -EEXIST;
 	spin_unlock_bh(&xfrm_type_lock);
 	xfrm_state_put_afinfo(afinfo);
@@ -198,13 +200,16 @@ int xfrm_unregister_type(const struct xfrm_type *type, unsigned short family)
 
 	if (unlikely(afinfo == NULL))
 		return -EAFNOSUPPORT;
-	typemap = afinfo->type_map;
+	typemap = (const struct xfrm_type **)afinfo->type_map;
 	spin_lock_bh(&xfrm_type_lock);
 
 	if (unlikely(typemap[type->proto] != type))
 		err = -ENOENT;
-	else
+	else {
+		pax_open_kernel();
 		typemap[type->proto] = NULL;
+		pax_close_kernel();
+	}
 	spin_unlock_bh(&xfrm_type_lock);
 	xfrm_state_put_afinfo(afinfo);
 	return err;
@@ -214,7 +219,6 @@ EXPORT_SYMBOL(xfrm_unregister_type);
 static const struct xfrm_type *xfrm_get_type(u8 proto, unsigned short family)
 {
 	struct xfrm_state_afinfo *afinfo;
-	const struct xfrm_type **typemap;
 	const struct xfrm_type *type;
 	int modload_attempted = 0;
 
@@ -222,9 +226,8 @@ retry:
 	afinfo = xfrm_state_get_afinfo(family);
 	if (unlikely(afinfo == NULL))
 		return NULL;
-	typemap = afinfo->type_map;
 
-	type = typemap[proto];
+	type = afinfo->type_map[proto];
 	if (unlikely(type && !try_module_get(type->owner)))
 		type = NULL;
 	if (!type && !modload_attempted) {
@@ -258,7 +261,7 @@ int xfrm_register_mode(struct xfrm_mode *mode, int family)
 		return -EAFNOSUPPORT;
 
 	err = -EEXIST;
-	modemap = afinfo->mode_map;
+	modemap = (struct xfrm_mode **)afinfo->mode_map;
 	spin_lock_bh(&xfrm_mode_lock);
 	if (modemap[mode->encap])
 		goto out;
@@ -267,8 +270,10 @@ int xfrm_register_mode(struct xfrm_mode *mode, int family)
 	if (!try_module_get(afinfo->owner))
 		goto out;
 
-	mode->afinfo = afinfo;
+	pax_open_kernel();
+	*(const void **)&mode->afinfo = afinfo;
 	modemap[mode->encap] = mode;
+	pax_close_kernel();
 	err = 0;
 
 out:
@@ -292,10 +297,12 @@ int xfrm_unregister_mode(struct xfrm_mode *mode, int family)
 		return -EAFNOSUPPORT;
 
 	err = -ENOENT;
-	modemap = afinfo->mode_map;
+	modemap = (struct xfrm_mode **)afinfo->mode_map;
 	spin_lock_bh(&xfrm_mode_lock);
 	if (likely(modemap[mode->encap] == mode)) {
+		pax_open_kernel();
 		modemap[mode->encap] = NULL;
+		pax_close_kernel();
 		module_put(mode->afinfo->owner);
 		err = 0;
 	}
diff --git a/net/xfrm/xfrm_sysctl.c b/net/xfrm/xfrm_sysctl.c
index 05a6e3d..6716ec9 100644
--- a/net/xfrm/xfrm_sysctl.c
+++ b/net/xfrm/xfrm_sysctl.c
@@ -42,7 +42,7 @@ static struct ctl_table xfrm_table[] = {
 
 int __net_init xfrm_sysctl_init(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	__xfrm_sysctl_init(net);
 
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 0e801c3..5c8ad3b 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -111,7 +111,7 @@ endif
 endif
 
 # Do not include host rules unless needed
-ifneq ($(hostprogs-y)$(hostprogs-m),)
+ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),)
 include scripts/Makefile.host
 endif
 
diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
index 686cb0d..9d653bf 100644
--- a/scripts/Makefile.clean
+++ b/scripts/Makefile.clean
@@ -43,7 +43,8 @@ subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn))
 __clean-files	:= $(extra-y) $(always)                  \
 		   $(targets) $(clean-files)             \
 		   $(host-progs)                         \
-		   $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
+		   $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \
+		   $(hostlibs-y) $(hostlibs-m) $(hostlibs-)
 
 __clean-files   := $(filter-out $(no-clean-files), $(__clean-files))
 
diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index 1ac414f..38575f7 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -31,6 +31,8 @@
 # Note: Shared libraries consisting of C++ files are not supported
 
 __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
+__hostlibs := $(sort $(hostlibs-y) $(hostlibs-m))
+__hostcxxlibs := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
 
 # C code
 # Executables compiled from a single .c file
@@ -54,11 +56,15 @@ host-cxxobjs	:= $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
 # Shared libaries (only .c supported)
 # Shared libraries (.so) - all .so files referenced in "xxx-objs"
 host-cshlib	:= $(sort $(filter %.so, $(host-cobjs)))
+host-cshlib	+= $(sort $(filter %.so, $(__hostlibs)))
+host-cxxshlib	:= $(sort $(filter %.so, $(__hostcxxlibs)))
 # Remove .so files from "xxx-objs"
 host-cobjs	:= $(filter-out %.so,$(host-cobjs))
+host-cxxobjs	:= $(filter-out %.so,$(host-cxxobjs))
 
-#Object (.o) files used by the shared libaries
+# Object (.o) files used by the shared libaries
 host-cshobjs	:= $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
+host-cxxshobjs	:= $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))
 
 # output directory for programs/.o files
 # hostprogs-y := tools/build may have been specified. Retrieve directory
@@ -82,7 +88,9 @@ host-cobjs	:= $(addprefix $(obj)/,$(host-cobjs))
 host-cxxmulti	:= $(addprefix $(obj)/,$(host-cxxmulti))
 host-cxxobjs	:= $(addprefix $(obj)/,$(host-cxxobjs))
 host-cshlib	:= $(addprefix $(obj)/,$(host-cshlib))
+host-cxxshlib	:= $(addprefix $(obj)/,$(host-cxxshlib))
 host-cshobjs	:= $(addprefix $(obj)/,$(host-cshobjs))
+host-cxxshobjs	:= $(addprefix $(obj)/,$(host-cxxshobjs))
 host-objdirs    := $(addprefix $(obj)/,$(host-objdirs))
 
 obj-dirs += $(host-objdirs)
@@ -156,6 +164,13 @@ quiet_cmd_host-cshobjs	= HOSTCC  -fPIC $@
 $(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
 	$(call if_changed_dep,host-cshobjs)
 
+# Compile .c file, create position independent .o file
+# host-cxxshobjs -> .o
+quiet_cmd_host-cxxshobjs	= HOSTCXX -fPIC $@
+      cmd_host-cxxshobjs	= $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $<
+$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE
+	$(call if_changed_dep,host-cxxshobjs)
+
 # Link a shared library, based on position independent .o files
 # *.o -> .so shared library (host-cshlib)
 quiet_cmd_host-cshlib	= HOSTLLD -shared $@
@@ -165,6 +180,15 @@ quiet_cmd_host-cshlib	= HOSTLLD -shared $@
 $(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE
 	$(call if_changed,host-cshlib)
 
+# Link a shared library, based on position independent .o files
+# *.o -> .so shared library (host-cxxshlib)
+quiet_cmd_host-cxxshlib	= HOSTLLD -shared $@
+      cmd_host-cxxshlib	= $(HOSTCXX) $(HOSTLDFLAGS) -shared -o $@ \
+			  $(addprefix $(obj)/,$($(@F:.so=-objs))) \
+			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+$(host-cxxshlib): $(obj)/%: $(host-cxxshobjs) FORCE
+	$(call if_changed,host-cxxshlib)
+
 targets += $(host-csingle)  $(host-cmulti) $(host-cobjs)\
-	   $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) 
+	   $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs)
 
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index 7f6425e..9864506 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -161,7 +161,7 @@ static unsigned int strhash(const char *str, unsigned int sz)
 /*
  * Lookup a value in the configuration string.
  */
-static int is_defined_config(const char *name, int len, unsigned int hash)
+static int is_defined_config(const char *name, unsigned int len, unsigned int hash)
 {
 	struct item *aux;
 
@@ -211,10 +211,10 @@ static void clear_config(void)
 /*
  * Record the use of a CONFIG_* word.
  */
-static void use_config(const char *m, int slen)
+static void use_config(const char *m, unsigned int slen)
 {
 	unsigned int hash = strhash(m, slen);
-	int c, i;
+	unsigned int c, i;
 
 	if (is_defined_config(m, slen, hash))
 	    return;
@@ -235,9 +235,9 @@ static void use_config(const char *m, int slen)
 
 static void parse_config_file(const char *map, size_t len)
 {
-	const int *end = (const int *) (map + len);
+	const unsigned int *end = (const unsigned int *) (map + len);
 	/* start at +1, so that p can never be < map */
-	const int *m   = (const int *) map + 1;
+	const unsigned int *m   = (const unsigned int *) map + 1;
 	const char *p, *q;
 
 	for (; m < end; m++) {
@@ -406,7 +406,7 @@ static void print_deps(void)
 static void traps(void)
 {
 	static char test[] __attribute__((aligned(sizeof(int)))) = "CONF";
-	int *p = (int *)test;
+	unsigned int *p = (unsigned int *)test;
 
 	if (*p != INT_CONF) {
 		fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianness? %#x\n",
diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh
new file mode 100644
index 0000000..5e0222d
--- /dev/null
+++ b/scripts/gcc-plugin.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+plugincc=`$1 -E -shared - -o /dev/null -I\`$3 -print-file-name=plugin\`/include 2>&1 <<EOF
+#include "gcc-plugin.h"
+#include "tree.h"
+#include "tm.h"
+#include "rtl.h"
+#ifdef ENABLE_BUILD_WITH_CXX
+#warning $2
+#else
+#warning $1
+#endif
+EOF`
+if [ $? -eq 0 ]
+then
+	[[ "$plugincc" =~ "$1" ]] && echo "$1"
+	[[ "$plugincc" =~ "$2" ]] && echo "$2"
+fi
diff --git a/scripts/headers_install.pl b/scripts/headers_install.pl
index 581ca99..a6ff02e 100644
--- a/scripts/headers_install.pl
+++ b/scripts/headers_install.pl
@@ -35,6 +35,7 @@ foreach my $filename (@files) {
 		$line =~ s/([\s(])__user\s/$1/g;
 		$line =~ s/([\s(])__force\s/$1/g;
 		$line =~ s/([\s(])__iomem\s/$1/g;
+		$line =~ s/(\s?)__intentional_overflow\([-\d\s,]*\)\s?/$1/g;
 		$line =~ s/\s__attribute_const__\s/ /g;
 		$line =~ s/\s__attribute_const__$//g;
 		$line =~ s/\b__packed\b/__attribute__((packed))/g;
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 3d569d6..0c09522 100644
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -159,7 +159,7 @@ else
 fi;
 
 # final build of init/
-${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init
+${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init GCC_PLUGINS_CFLAGS="${GCC_PLUGINS_CFLAGS}" GCC_PLUGINS_AFLAGS="${GCC_PLUGINS_AFLAGS}"
 
 kallsymso=""
 kallsyms_vmlinux=""
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 771ac17..9f0d3ee 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -140,7 +140,7 @@ static void device_id_check(const char *modname, const char *device_id,
 			    unsigned long size, unsigned long id_size,
 			    void *symval)
 {
-	int i;
+	unsigned int i;
 
 	if (size % id_size || size < id_size) {
 		fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
@@ -168,7 +168,7 @@ static void device_id_check(const char *modname, const char *device_id,
 /* USB is special because the bcdDevice can be matched against a numeric range */
 /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipNinN" */
 static void do_usb_entry(void *symval,
-			 unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
+			 unsigned int bcdDevice_initial, unsigned int bcdDevice_initial_digits,
 			 unsigned char range_lo, unsigned char range_hi,
 			 unsigned char max, struct module *mod)
 {
@@ -278,7 +278,7 @@ static void do_usb_entry_multi(void *symval, struct module *mod)
 {
 	unsigned int devlo, devhi;
 	unsigned char chi, clo, max;
-	int ndigits;
+	unsigned int ndigits;
 
 	DEF_FIELD(symval, usb_device_id, match_flags);
 	DEF_FIELD(symval, usb_device_id, idVendor);
@@ -531,7 +531,7 @@ static void do_pnp_device_entry(void *symval, unsigned long size,
 	for (i = 0; i < count; i++) {
 		DEF_FIELD_ADDR(symval + i*id_size, pnp_device_id, id);
 		char acpi_id[sizeof(*id)];
-		int j;
+		unsigned int j;
 
 		buf_printf(&mod->dev_table_buf,
 			   "MODULE_ALIAS(\"pnp:d%s*\");\n", *id);
@@ -560,7 +560,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size,
 
 		for (j = 0; j < PNP_MAX_DEVICES; j++) {
 			const char *id = (char *)(*devs)[j].id;
-			int i2, j2;
+			unsigned int i2, j2;
 			int dup = 0;
 
 			if (!id[0])
@@ -586,7 +586,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size,
 			/* add an individual alias for every device entry */
 			if (!dup) {
 				char acpi_id[PNP_ID_LEN];
-				int k;
+				unsigned int k;
 
 				buf_printf(&mod->dev_table_buf,
 					   "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
@@ -938,7 +938,7 @@ static void dmi_ascii_filter(char *d, const char *s)
 static int do_dmi_entry(const char *filename, void *symval,
 			char *alias)
 {
-	int i, j;
+	unsigned int i, j;
 	DEF_FIELD_ADDR(symval, dmi_system_id, matches);
 	sprintf(alias, "dmi*");
 
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 78b30c1..536850d 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -931,6 +931,7 @@ enum mismatch {
 	ANY_INIT_TO_ANY_EXIT,
 	ANY_EXIT_TO_ANY_INIT,
 	EXPORT_TO_INIT_EXIT,
+	DATA_TO_TEXT
 };
 
 struct sectioncheck {
@@ -1045,6 +1046,12 @@ const struct sectioncheck sectioncheck[] = {
 	.tosec   = { INIT_SECTIONS, EXIT_SECTIONS, NULL },
 	.mismatch = EXPORT_TO_INIT_EXIT,
 	.symbol_white_list = { DEFAULT_SYMBOL_WHITE_LIST, NULL },
+},
+/* Do not reference code from writable data */
+{
+	.fromsec = { DATA_SECTIONS, NULL },
+	.tosec   = { TEXT_SECTIONS, NULL },
+	.mismatch = DATA_TO_TEXT
 }
 };
 
@@ -1167,10 +1174,10 @@ static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf64_Sword addr,
 			continue;
 		if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
 			continue;
-		if (sym->st_value == addr)
-			return sym;
 		/* Find a symbol nearby - addr are maybe negative */
 		d = sym->st_value - addr;
+		if (d == 0)
+			return sym;
 		if (d < 0)
 			d = addr - sym->st_value;
 		if (d < distance) {
@@ -1449,6 +1456,14 @@ static void report_sec_mismatch(const char *modname,
 		tosym, prl_to, prl_to, tosym);
 		free(prl_to);
 		break;
+	case DATA_TO_TEXT:
+#if 0
+		fprintf(stderr,
+		"The %s %s:%s references\n"
+		"the %s %s:%s%s\n",
+		from, fromsec, fromsym, to, tosec, tosym, to_p);
+#endif
+		break;
 	}
 	fprintf(stderr, "\n");
 }
@@ -1683,7 +1698,7 @@ static void section_rel(const char *modname, struct elf_info *elf,
 static void check_sec_ref(struct module *mod, const char *modname,
                           struct elf_info *elf)
 {
-	int i;
+	unsigned int i;
 	Elf_Shdr *sechdrs = elf->sechdrs;
 
 	/* Walk through all sections */
@@ -1781,7 +1796,7 @@ void __attribute__((format(printf, 2, 3))) buf_printf(struct buffer *buf,
 	va_end(ap);
 }
 
-void buf_write(struct buffer *buf, const char *s, int len)
+void buf_write(struct buffer *buf, const char *s, unsigned int len)
 {
 	if (buf->size - buf->pos < len) {
 		buf->size += len + SZ;
@@ -1999,7 +2014,7 @@ static void write_if_changed(struct buffer *b, const char *fname)
 	if (fstat(fileno(file), &st) < 0)
 		goto close_write;
 
-	if (st.st_size != b->pos)
+	if (st.st_size != (off_t)b->pos)
 		goto close_write;
 
 	tmp = NOFAIL(malloc(b->pos));
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 51207e4..f7d603d 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -92,15 +92,15 @@ void *do_nofail(void *ptr, const char *expr);
 
 struct buffer {
 	char *p;
-	int pos;
-	int size;
+	unsigned int pos;
+	unsigned int size;
 };
 
 void __attribute__((format(printf, 2, 3)))
 buf_printf(struct buffer *buf, const char *fmt, ...);
 
 void
-buf_write(struct buffer *buf, const char *s, int len);
+buf_write(struct buffer *buf, const char *s, unsigned int len);
 
 struct module {
 	struct module *next;
diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
index 9dfcd6d..099068e 100644
--- a/scripts/mod/sumversion.c
+++ b/scripts/mod/sumversion.c
@@ -470,7 +470,7 @@ static void write_version(const char *filename, const char *sum,
 		goto out;
 	}
 
-	if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) {
+	if (write(fd, sum, strlen(sum)+1) != (ssize_t)strlen(sum)+1) {
 		warn("writing sum in %s failed: %s\n",
 			filename, strerror(errno));
 		goto out;
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index acb8650..b8c5f02 100644
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -246,6 +246,7 @@ fi
 (cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl > "$objtree/debian/hdrsrcfiles")
 (cd $srctree; find arch/$SRCARCH/include include scripts -type f >> "$objtree/debian/hdrsrcfiles")
 (cd $objtree; find arch/$SRCARCH/include .config Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles")
+(cd $objtree; find tools/gcc -name \*.so >> "$objtree/debian/hdrobjfiles")
 destdir=$kernel_headers_dir/usr/src/linux-headers-$version
 mkdir -p "$destdir"
 (cd $srctree; tar -c -f - -T "$objtree/debian/hdrsrcfiles") | (cd $destdir; tar -xf -)
diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c
index 68bb4ef..2f419e1 100644
--- a/scripts/pnmtologo.c
+++ b/scripts/pnmtologo.c
@@ -244,14 +244,14 @@ static void write_header(void)
     fprintf(out, " *  Linux logo %s\n", logoname);
     fputs(" */\n\n", out);
     fputs("#include <linux/linux_logo.h>\n\n", out);
-    fprintf(out, "static unsigned char %s_data[] __initdata = {\n",
+    fprintf(out, "static unsigned char %s_data[] = {\n",
 	    logoname);
 }
 
 static void write_footer(void)
 {
     fputs("\n};\n\n", out);
-    fprintf(out, "const struct linux_logo %s __initconst = {\n", logoname);
+    fprintf(out, "const struct linux_logo %s = {\n", logoname);
     fprintf(out, "\t.type\t\t= %s,\n", logo_types[logo_type]);
     fprintf(out, "\t.width\t\t= %d,\n", logo_width);
     fprintf(out, "\t.height\t\t= %d,\n", logo_height);
@@ -381,7 +381,7 @@ static void write_logo_clut224(void)
     fputs("\n};\n\n", out);
 
     /* write logo clut */
-    fprintf(out, "static unsigned char %s_clut[] __initdata = {\n",
+    fprintf(out, "static unsigned char %s_clut[] = {\n",
 	    logoname);
     write_hex_cnt = 0;
     for (i = 0; i < logo_clutsize; i++) {
diff --git a/scripts/sortextable.h b/scripts/sortextable.h
index f5eb43d..1814de8 100644
--- a/scripts/sortextable.h
+++ b/scripts/sortextable.h
@@ -106,9 +106,9 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
 	const char *secstrtab;
 	const char *strtab;
 	char *extab_image;
-	int extab_index = 0;
-	int i;
-	int idx;
+	unsigned int extab_index = 0;
+	unsigned int i;
+	unsigned int idx;
 
 	shdr = (Elf_Shdr *)((char *)ehdr + _r(&ehdr->e_shoff));
 	shstrtab_sec = shdr + r2(&ehdr->e_shstrndx);
diff --git a/security/Kconfig b/security/Kconfig
index e9c6ac7..e6254cf 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -4,6 +4,944 @@
 
 menu "Security options"
 
+menu "Grsecurity"
+
+	config ARCH_TRACK_EXEC_LIMIT
+	bool
+
+	config PAX_KERNEXEC_PLUGIN
+	bool
+
+	config PAX_PER_CPU_PGD
+	bool
+
+	config TASK_SIZE_MAX_SHIFT
+	int
+	depends on X86_64
+	default 47 if !PAX_PER_CPU_PGD
+	default 42 if PAX_PER_CPU_PGD
+
+	config PAX_ENABLE_PAE
+	bool
+	default y if (X86_32 && (MPENTIUM4 || MK8 || MPSC || MCORE2 || MATOM))
+	
+	config PAX_USERCOPY_SLABS
+	bool
+
+config GRKERNSEC
+	bool "Grsecurity"
+	select CRYPTO
+	select CRYPTO_SHA256
+	select PROC_FS
+	select STOP_MACHINE
+	select TTY
+	help
+	  If you say Y here, you will be able to configure many features
+	  that will enhance the security of your system.  It is highly
+	  recommended that you say Y here and read through the help
+	  for each option so that you fully understand the features and
+	  can evaluate their usefulness for your machine.
+
+choice
+	prompt "Configuration Method"
+	depends on GRKERNSEC
+	default GRKERNSEC_CONFIG_CUSTOM
+	help
+
+config GRKERNSEC_CONFIG_AUTO
+	bool "Automatic"
+	help
+	  If you choose this configuration method, you'll be able to answer a small
+	  number of simple questions about how you plan to use this kernel.
+	  The settings of grsecurity and PaX will be automatically configured for
+	  the highest commonly-used settings within the provided constraints.
+
+	  If you require additional configuration, custom changes can still be made
+	  from the "custom configuration" menu.
+
+config GRKERNSEC_CONFIG_CUSTOM
+	bool "Custom"
+	help
+	  If you choose this configuration method, you'll be able to configure all
+	  grsecurity and PaX settings manually.  Via this method, no options are
+	  automatically enabled.
+
+endchoice
+
+choice
+	prompt "Usage Type"
+	depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
+	default GRKERNSEC_CONFIG_SERVER
+	help
+
+config GRKERNSEC_CONFIG_SERVER
+	bool "Server"
+	help
+	  Choose this option if you plan to use this kernel on a server.
+
+config GRKERNSEC_CONFIG_DESKTOP
+	bool "Desktop"
+	help
+	  Choose this option if you plan to use this kernel on a desktop.
+
+endchoice
+
+choice
+	prompt "Virtualization Type"
+	depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO)
+	default GRKERNSEC_CONFIG_VIRT_NONE
+	help
+
+config GRKERNSEC_CONFIG_VIRT_NONE
+	bool "None"
+	help
+	  Choose this option if this kernel will be run on bare metal.
+
+config GRKERNSEC_CONFIG_VIRT_GUEST
+	bool "Guest"
+	help
+	  Choose this option if this kernel will be run as a VM guest.
+
+config GRKERNSEC_CONFIG_VIRT_HOST
+	bool "Host"
+	help
+	  Choose this option if this kernel will be run as a VM host.
+
+endchoice
+
+choice
+	prompt "Virtualization Hardware"
+	depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST))
+	help
+
+config GRKERNSEC_CONFIG_VIRT_EPT
+	bool "EPT/RVI Processor Support"
+	depends on X86
+	help
+	  Choose this option if your CPU supports the EPT or RVI features of 2nd-gen
+	  hardware virtualization.  This allows for additional kernel hardening protections
+	  to operate without additional performance impact.
+
+	  To see if your Intel processor supports EPT, see:
+	  http://ark.intel.com/Products/VirtualizationTechnology
+	  (Most Core i3/5/7 support EPT)
+
+	  To see if your AMD processor supports RVI, see:
+	  http://support.amd.com/us/kbarticles/Pages/GPU120AMDRVICPUsHyperVWin8.aspx
+
+config GRKERNSEC_CONFIG_VIRT_SOFT
+	bool "First-gen/No Hardware Virtualization"
+	help
+	  Choose this option if you use an Atom/Pentium/Core 2 processor that either doesn't
+	  support hardware virtualization or doesn't support the EPT/RVI extensions.
+
+endchoice
+
+choice
+	prompt "Virtualization Software"
+	depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST))
+	help
+
+config GRKERNSEC_CONFIG_VIRT_XEN
+	bool "Xen"
+	help
+	  Choose this option if this kernel is running as a Xen guest or host.
+
+config GRKERNSEC_CONFIG_VIRT_VMWARE
+	bool "VMWare"
+	help
+	  Choose this option if this kernel is running as a VMWare guest or host.
+
+config GRKERNSEC_CONFIG_VIRT_KVM
+	bool "KVM"
+	help
+	  Choose this option if this kernel is running as a KVM guest or host.
+
+config GRKERNSEC_CONFIG_VIRT_VIRTUALBOX
+	bool "VirtualBox"
+	help
+	  Choose this option if this kernel is running as a VirtualBox guest or host.
+
+endchoice
+
+choice
+	prompt "Required Priorities"
+	depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
+	default GRKERNSEC_CONFIG_PRIORITY_PERF
+	help
+
+config GRKERNSEC_CONFIG_PRIORITY_PERF
+	bool "Performance"
+	help
+	  Choose this option if performance is of highest priority for this deployment
+	  of grsecurity.  Features like UDEREF on a 64bit kernel, kernel stack clearing,
+	  clearing of structures intended for userland, and freed memory sanitizing will
+	  be disabled.
+
+config GRKERNSEC_CONFIG_PRIORITY_SECURITY
+	bool "Security"
+	help
+	  Choose this option if security is of highest priority for this deployment of
+	  grsecurity.  UDEREF, kernel stack clearing, clearing of structures intended
+	  for userland, and freed memory sanitizing will be enabled for this kernel.
+	  In a worst-case scenario, these features can introduce a 20% performance hit
+	  (UDEREF on x64 contributing half of this hit).
+
+endchoice
+
+menu "Default Special Groups"
+depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
+
+config GRKERNSEC_PROC_GID
+	int "GID exempted from /proc restrictions"
+	default 1001
+	help
+	  Setting this GID determines which group will be exempted from
+	  grsecurity's /proc restrictions, allowing users of the specified
+	  group  to view network statistics and the existence of other users'
+	  processes on the system.  This GID may also be chosen at boot time
+	  via "grsec_proc_gid=" on the kernel commandline.
+
+config GRKERNSEC_TPE_UNTRUSTED_GID
+        int "GID for TPE-untrusted users"
+        depends on GRKERNSEC_CONFIG_SERVER && GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
+        default 1005
+        help
+	  Setting this GID determines which group untrusted users should
+	  be added to.  These users will be placed under grsecurity's Trusted Path
+	  Execution mechanism, preventing them from executing their own binaries.
+	  The users will only be able to execute binaries in directories owned and
+	  writable only by the root user.  If the sysctl option is enabled, a sysctl
+	  option with name "tpe_gid" is created.
+
+config GRKERNSEC_TPE_TRUSTED_GID
+        int "GID for TPE-trusted users"
+        depends on GRKERNSEC_CONFIG_SERVER && GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
+        default 1005
+        help
+          Setting this GID determines what group TPE restrictions will be
+          *disabled* for.  If the sysctl option is enabled, a sysctl option
+          with name "tpe_gid" is created.
+
+config GRKERNSEC_SYMLINKOWN_GID
+        int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
+        depends on GRKERNSEC_CONFIG_SERVER
+        default 1006
+        help
+          Setting this GID determines what group kernel-enforced
+          SymlinksIfOwnerMatch will be enabled for.  If the sysctl option
+          is enabled, a sysctl option with name "symlinkown_gid" is created.
+
+
+endmenu
+
+menu "Customize Configuration"
+depends on GRKERNSEC
+
+menu "PaX"
+
+config PAX
+	bool "Enable various PaX features"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC && (ALPHA || ARM || AVR32 || IA64 || MIPS || PARISC || PPC || SPARC || X86)
+	help
+	  This allows you to enable various PaX features.  PaX adds
+	  intrusion prevention mechanisms to the kernel that reduce
+	  the risks posed by exploitable memory corruption bugs.
+
+menu "PaX Control"
+	depends on PAX
+
+config PAX_SOFTMODE
+	bool 'Support soft mode'
+	help
+	  Enabling this option will allow you to run PaX in soft mode, that
+	  is, PaX features will not be enforced by default, only on executables
+	  marked explicitly.  You must also enable PT_PAX_FLAGS or XATTR_PAX_FLAGS
+	  support as they are the only way to mark executables for soft mode use.
+
+	  Soft mode can be activated by using the "pax_softmode=1" kernel command
+	  line option on boot.  Furthermore you can control various PaX features
+	  at runtime via the entries in /proc/sys/kernel/pax.
+
+config PAX_EI_PAX
+	bool 'Use legacy ELF header marking'
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  Enabling this option will allow you to control PaX features on
+	  a per executable basis via the 'chpax' utility available at
+	  http://pax.grsecurity.net/.  The control flags will be read from
+	  an otherwise reserved part of the ELF header.  This marking has
+	  numerous drawbacks (no support for soft-mode, toolchain does not
+	  know about the non-standard use of the ELF header) therefore it
+	  has been deprecated in favour of PT_PAX_FLAGS and XATTR_PAX_FLAGS
+	  support.
+
+	  Note that if you enable PT_PAX_FLAGS or XATTR_PAX_FLAGS marking
+	  support as well, they will override the legacy EI_PAX marks.
+
+	  If you enable none of the marking options then all applications
+	  will run with PaX enabled on them by default.
+
+config PAX_PT_PAX_FLAGS
+	bool 'Use ELF program header marking'
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  Enabling this option will allow you to control PaX features on
+	  a per executable basis via the 'paxctl' utility available at
+	  http://pax.grsecurity.net/.  The control flags will be read from
+	  a PaX specific ELF program header (PT_PAX_FLAGS).  This marking
+	  has the benefits of supporting both soft mode and being fully
+	  integrated into the toolchain (the binutils patch is available
+	  from http://pax.grsecurity.net).
+
+	  Note that if you enable the legacy EI_PAX marking support as well,
+	  the EI_PAX marks will be overridden by the PT_PAX_FLAGS marks.
+
+	  If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you
+	  must make sure that the marks are the same if a binary has both marks.
+
+	  If you enable none of the marking options then all applications
+	  will run with PaX enabled on them by default.
+
+config PAX_XATTR_PAX_FLAGS
+	bool 'Use filesystem extended attributes marking'
+	default y if GRKERNSEC_CONFIG_AUTO
+	select CIFS_XATTR if CIFS
+	select EXT2_FS_XATTR if EXT2_FS
+	select EXT3_FS_XATTR if EXT3_FS
+	select EXT4_FS_XATTR if EXT4_FS
+	select JFFS2_FS_XATTR if JFFS2_FS
+	select REISERFS_FS_XATTR if REISERFS_FS
+	select SQUASHFS_XATTR if SQUASHFS
+	select TMPFS_XATTR if TMPFS
+	select UBIFS_FS_XATTR if UBIFS_FS
+	help
+	  Enabling this option will allow you to control PaX features on
+	  a per executable basis via the 'setfattr' utility.  The control
+	  flags will be read from the user.pax.flags extended attribute of
+	  the file.  This marking has the benefit of supporting binary-only
+	  applications that self-check themselves (e.g., skype) and would
+	  not tolerate chpax/paxctl changes.  The main drawback is that
+	  extended attributes are not supported by some filesystems (e.g.,
+	  isofs, udf, vfat) so copying files through such filesystems will
+	  lose the extended attributes and these PaX markings.
+
+	  Note that if you enable the legacy EI_PAX marking support as well,
+	  the EI_PAX marks will be overridden by the XATTR_PAX_FLAGS marks.
+
+	  If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you
+	  must make sure that the marks are the same if a binary has both marks.
+
+	  If you enable none of the marking options then all applications
+	  will run with PaX enabled on them by default.
+
+choice
+	prompt 'MAC system integration'
+	default PAX_HAVE_ACL_FLAGS
+	help
+	  Mandatory Access Control systems have the option of controlling
+	  PaX flags on a per executable basis, choose the method supported
+	  by your particular system.
+
+	  - "none": if your MAC system does not interact with PaX,
+	  - "direct": if your MAC system defines pax_set_initial_flags() itself,
+	  - "hook": if your MAC system uses the pax_set_initial_flags_func callback.
+
+	  NOTE: this option is for developers/integrators only.
+
+	config PAX_NO_ACL_FLAGS
+		bool 'none'
+
+	config PAX_HAVE_ACL_FLAGS
+		bool 'direct'
+
+	config PAX_HOOK_ACL_FLAGS
+		bool 'hook'
+endchoice
+
+endmenu
+
+menu "Non-executable pages"
+	depends on PAX
+
+config PAX_NOEXEC
+	bool "Enforce non-executable pages"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on ALPHA || (ARM && (CPU_V6 || CPU_V7)) || IA64 || MIPS || PARISC || PPC || S390 || SPARC || X86
+	help
+	  By design some architectures do not allow for protecting memory
+	  pages against execution or even if they do, Linux does not make
+	  use of this feature.  In practice this means that if a page is
+	  readable (such as the stack or heap) it is also executable.
+
+	  There is a well known exploit technique that makes use of this
+	  fact and a common programming mistake where an attacker can
+	  introduce code of his choice somewhere in the attacked program's
+	  memory (typically the stack or the heap) and then execute it.
+
+	  If the attacked program was running with different (typically
+	  higher) privileges than that of the attacker, then he can elevate
+	  his own privilege level (e.g. get a root shell, write to files for
+	  which he does not have write access to, etc).
+
+	  Enabling this option will let you choose from various features
+	  that prevent the injection and execution of 'foreign' code in
+	  a program.
+
+	  This will also break programs that rely on the old behaviour and
+	  expect that dynamically allocated memory via the malloc() family
+	  of functions is executable (which it is not).  Notable examples
+	  are the XFree86 4.x server, the java runtime and wine.
+
+config PAX_PAGEEXEC
+	bool "Paging based non-executable pages"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on PAX_NOEXEC && (!X86_32 || M586 || M586TSC || M586MMX || M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MATOM || MPENTIUM4 || MPSC || MK7 || MK8 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MVIAC3_2 || MVIAC7)
+	select S390_SWITCH_AMODE if S390
+	select S390_EXEC_PROTECT if S390
+	select ARCH_TRACK_EXEC_LIMIT if X86_32
+	help
+	  This implementation is based on the paging feature of the CPU.
+	  On i386 without hardware non-executable bit support there is a
+	  variable but usually low performance impact, however on Intel's
+	  P4 core based CPUs it is very high so you should not enable this
+	  for kernels meant to be used on such CPUs.
+
+	  On alpha, avr32, ia64, parisc, sparc, sparc64, x86_64 and i386
+	  with hardware non-executable bit support there is no performance
+	  impact, on ppc the impact is negligible.
+
+	  Note that several architectures require various emulations due to
+	  badly designed userland ABIs, this will cause a performance impact
+	  but will disappear as soon as userland is fixed. For example, ppc
+	  userland MUST have been built with secure-plt by a recent toolchain.
+
+config PAX_SEGMEXEC
+	bool "Segmentation based non-executable pages"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on PAX_NOEXEC && X86_32
+	help
+	  This implementation is based on the segmentation feature of the
+	  CPU and has a very small performance impact, however applications
+	  will be limited to a 1.5 GB address space instead of the normal
+	  3 GB.
+
+config PAX_EMUTRAMP
+	bool "Emulate trampolines" if (PAX_PAGEEXEC || PAX_SEGMEXEC) && (PARISC || X86)
+	default y if PARISC
+	help
+	  There are some programs and libraries that for one reason or
+	  another attempt to execute special small code snippets from
+	  non-executable memory pages.  Most notable examples are the
+	  signal handler return code generated by the kernel itself and
+	  the GCC trampolines.
+
+	  If you enabled CONFIG_PAX_PAGEEXEC or CONFIG_PAX_SEGMEXEC then
+	  such programs will no longer work under your kernel.
+
+	  As a remedy you can say Y here and use the 'chpax' or 'paxctl'
+	  utilities to enable trampoline emulation for the affected programs
+	  yet still have the protection provided by the non-executable pages.
+
+	  On parisc you MUST enable this option and EMUSIGRT as well, otherwise
+	  your system will not even boot.
+
+	  Alternatively you can say N here and use the 'chpax' or 'paxctl'
+	  utilities to disable CONFIG_PAX_PAGEEXEC and CONFIG_PAX_SEGMEXEC
+	  for the affected files.
+
+	  NOTE: enabling this feature *may* open up a loophole in the
+	  protection provided by non-executable pages that an attacker
+	  could abuse.  Therefore the best solution is to not have any
+	  files on your system that would require this option.  This can
+	  be achieved by not using libc5 (which relies on the kernel
+	  signal handler return code) and not using or rewriting programs
+	  that make use of the nested function implementation of GCC.
+	  Skilled users can just fix GCC itself so that it implements
+	  nested function calls in a way that does not interfere with PaX.
+
+config PAX_EMUSIGRT
+	bool "Automatically emulate sigreturn trampolines"
+	depends on PAX_EMUTRAMP && PARISC
+	default y
+	help
+	  Enabling this option will have the kernel automatically detect
+	  and emulate signal return trampolines executing on the stack
+	  that would otherwise lead to task termination.
+
+	  This solution is intended as a temporary one for users with
+	  legacy versions of libc (libc5, glibc 2.0, uClibc before 0.9.17,
+	  Modula-3 runtime, etc) or executables linked to such, basically
+	  everything that does not specify its own SA_RESTORER function in
+	  normal executable memory like glibc 2.1+ does.
+
+	  On parisc you MUST enable this option, otherwise your system will
+	  not even boot.
+
+	  NOTE: this feature cannot be disabled on a per executable basis
+	  and since it *does* open up a loophole in the protection provided
+	  by non-executable pages, the best solution is to not have any
+	  files on your system that would require this option.
+
+config PAX_MPROTECT
+	bool "Restrict mprotect()"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on (PAX_PAGEEXEC || PAX_SEGMEXEC)
+	help
+	  Enabling this option will prevent programs from
+	   - changing the executable status of memory pages that were
+	     not originally created as executable,
+	   - making read-only executable pages writable again,
+	   - creating executable pages from anonymous memory,
+	   - making read-only-after-relocations (RELRO) data pages writable again.
+
+	  You should say Y here to complete the protection provided by
+	  the enforcement of non-executable pages.
+
+	  NOTE: you can use the 'chpax' or 'paxctl' utilities to control
+	  this feature on a per file basis.
+
+config PAX_MPROTECT_COMPAT
+	bool "Use legacy/compat protection demoting (read help)"
+	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP)
+	depends on PAX_MPROTECT
+	help
+	  The current implementation of PAX_MPROTECT denies RWX allocations/mprotects
+	  by sending the proper error code to the application.  For some broken 
+	  userland, this can cause problems with Python or other applications.  The
+	  current implementation however allows for applications like clamav to
+	  detect if JIT compilation/execution is allowed and to fall back gracefully
+	  to an interpreter-based mode if it does not.  While we encourage everyone
+	  to use the current implementation as-is and push upstream to fix broken
+	  userland (note that the RWX logging option can assist with this), in some
+	  environments this may not be possible.  Having to disable MPROTECT
+	  completely on certain binaries reduces the security benefit of PaX,
+	  so this option is provided for those environments to revert to the old
+	  behavior.
+	  
+config PAX_ELFRELOCS
+	bool "Allow ELF text relocations (read help)"
+	depends on PAX_MPROTECT
+	default n
+	help
+	  Non-executable pages and mprotect() restrictions are effective
+	  in preventing the introduction of new executable code into an
+	  attacked task's address space.  There remain only two venues
+	  for this kind of attack: if the attacker can execute already
+	  existing code in the attacked task then he can either have it
+	  create and mmap() a file containing his code or have it mmap()
+	  an already existing ELF library that does not have position
+	  independent code in it and use mprotect() on it to make it
+	  writable and copy his code there.  While protecting against
+	  the former approach is beyond PaX, the latter can be prevented
+	  by having only PIC ELF libraries on one's system (which do not
+	  need to relocate their code).  If you are sure this is your case,
+	  as is the case with all modern Linux distributions, then leave
+	  this option disabled.  You should say 'n' here.
+
+config PAX_ETEXECRELOCS
+	bool "Allow ELF ET_EXEC text relocations"
+	depends on PAX_MPROTECT && (ALPHA || IA64 || PARISC)
+	select PAX_ELFRELOCS
+	default y
+	help
+	  On some architectures there are incorrectly created applications
+	  that require text relocations and would not work without enabling
+	  this option.  If you are an alpha, ia64 or parisc user, you should
+	  enable this option and disable it once you have made sure that
+	  none of your applications need it.
+
+config PAX_EMUPLT
+	bool "Automatically emulate ELF PLT"
+	depends on PAX_MPROTECT && (ALPHA || PARISC || SPARC)
+	default y
+	help
+	  Enabling this option will have the kernel automatically detect
+	  and emulate the Procedure Linkage Table entries in ELF files.
+	  On some architectures such entries are in writable memory, and
+	  become non-executable leading to task termination.  Therefore
+	  it is mandatory that you enable this option on alpha, parisc,
+	  sparc and sparc64, otherwise your system would not even boot.
+
+	  NOTE: this feature *does* open up a loophole in the protection
+	  provided by the non-executable pages, therefore the proper
+	  solution is to modify the toolchain to produce a PLT that does
+	  not need to be writable.
+
+config PAX_DLRESOLVE
+	bool 'Emulate old glibc resolver stub'
+	depends on PAX_EMUPLT && SPARC
+	default n
+	help
+	  This option is needed if userland has an old glibc (before 2.4)
+	  that puts a 'save' instruction into the runtime generated resolver
+	  stub that needs special emulation.
+
+config PAX_KERNEXEC
+	bool "Enforce non-executable kernel pages"
+	default y if GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_NONE || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_GUEST) || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_KVM))
+	depends on (X86 || (ARM && (CPU_V6 || CPU_V7) && !(ARM_LPAE && MODULES))) && !XEN
+	select PAX_PER_CPU_PGD if X86_64 || (X86_32 && X86_PAE)
+	select PAX_KERNEXEC_PLUGIN if X86_64
+	help
+	  This is the kernel land equivalent of PAGEEXEC and MPROTECT,
+	  that is, enabling this option will make it harder to inject
+	  and execute 'foreign' code in kernel memory itself.
+
+choice
+	prompt "Return Address Instrumentation Method"
+	default PAX_KERNEXEC_PLUGIN_METHOD_BTS
+	depends on PAX_KERNEXEC_PLUGIN
+	help
+	  Select the method used to instrument function pointer dereferences.
+	  Note that binary modules cannot be instrumented by this approach.
+
+	  Note that the implementation requires a gcc with plugin support,
+	  i.e., gcc 4.5 or newer.  You may need to install the supporting
+	  headers explicitly in addition to the normal gcc package.
+
+	config PAX_KERNEXEC_PLUGIN_METHOD_BTS
+		bool "bts"
+		help
+		  This method is compatible with binary only modules but has
+		  a higher runtime overhead.
+
+	config PAX_KERNEXEC_PLUGIN_METHOD_OR
+		bool "or"
+		depends on !PARAVIRT
+		help
+		  This method is incompatible with binary only modules but has
+		  a lower runtime overhead.
+endchoice
+
+config PAX_KERNEXEC_PLUGIN_METHOD
+	string
+	default "bts" if PAX_KERNEXEC_PLUGIN_METHOD_BTS
+	default "or" if PAX_KERNEXEC_PLUGIN_METHOD_OR
+	default ""
+
+config PAX_KERNEXEC_MODULE_TEXT
+	int "Minimum amount of memory reserved for module code"
+	default "4" if (!GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_SERVER)
+	default "12" if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP)
+	depends on PAX_KERNEXEC && X86_32 && MODULES
+	help
+	  Due to implementation details the kernel must reserve a fixed
+	  amount of memory for module code at compile time that cannot be
+	  changed at runtime.  Here you can specify the minimum amount
+	  in MB that will be reserved.  Due to the same implementation
+	  details this size will always be rounded up to the next 2/4 MB
+	  boundary (depends on PAE) so the actually available memory for
+	  module code will usually be more than this minimum.
+
+	  The default 4 MB should be enough for most users but if you have
+	  an excessive number of modules (e.g., most distribution configs
+	  compile many drivers as modules) or use huge modules such as
+	  nvidia's kernel driver, you will need to adjust this amount.
+	  A good rule of thumb is to look at your currently loaded kernel
+	  modules and add up their sizes.
+
+endmenu
+
+menu "Address Space Layout Randomization"
+	depends on PAX
+
+config PAX_ASLR
+	bool "Address Space Layout Randomization"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  Many if not most exploit techniques rely on the knowledge of
+	  certain addresses in the attacked program.  The following options
+	  will allow the kernel to apply a certain amount of randomization
+	  to specific parts of the program thereby forcing an attacker to
+	  guess them in most cases.  Any failed guess will most likely crash
+	  the attacked program which allows the kernel to detect such attempts
+	  and react on them.  PaX itself provides no reaction mechanisms,
+	  instead it is strongly encouraged that you make use of Nergal's
+	  segvguard (ftp://ftp.pl.openwall.com/misc/segvguard/) or grsecurity's
+	  (http://www.grsecurity.net/) built-in crash detection features or
+	  develop one yourself.
+
+	  By saying Y here you can choose to randomize the following areas:
+	   - top of the task's kernel stack
+	   - top of the task's userland stack
+	   - base address for mmap() requests that do not specify one
+	     (this includes all libraries)
+	   - base address of the main executable
+
+	  It is strongly recommended to say Y here as address space layout
+	  randomization has negligible impact on performance yet it provides
+	  a very effective protection.
+
+	  NOTE: you can use the 'chpax' or 'paxctl' utilities to control
+	  this feature on a per file basis.
+
+config PAX_RANDKSTACK
+	bool "Randomize kernel stack base"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on X86_TSC && X86
+	help
+	  By saying Y here the kernel will randomize every task's kernel
+	  stack on every system call.  This will not only force an attacker
+	  to guess it but also prevent him from making use of possible
+	  leaked information about it.
+
+	  Since the kernel stack is a rather scarce resource, randomization
+	  may cause unexpected stack overflows, therefore you should very
+	  carefully test your system.  Note that once enabled in the kernel
+	  configuration, this feature cannot be disabled on a per file basis.
+
+config PAX_RANDUSTACK
+	bool "Randomize user stack base"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on PAX_ASLR
+	help
+	  By saying Y here the kernel will randomize every task's userland
+	  stack.  The randomization is done in two steps where the second
+	  one may apply a big amount of shift to the top of the stack and
+	  cause problems for programs that want to use lots of memory (more
+	  than 2.5 GB if SEGMEXEC is not active, or 1.25 GB when it is).
+	  For this reason the second step can be controlled by 'chpax' or
+	  'paxctl' on a per file basis.
+
+config PAX_RANDMMAP
+	bool "Randomize mmap() base"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on PAX_ASLR
+	help
+	  By saying Y here the kernel will use a randomized base address for
+	  mmap() requests that do not specify one themselves.  As a result
+	  all dynamically loaded libraries will appear at random addresses
+	  and therefore be harder to exploit by a technique where an attacker
+	  attempts to execute library code for his purposes (e.g. spawn a
+	  shell from an exploited program that is running at an elevated
+	  privilege level).
+
+	  Furthermore, if a program is relinked as a dynamic ELF file, its
+	  base address will be randomized as well, completing the full
+	  randomization of the address space layout.  Attacking such programs
+	  becomes a guess game.  You can find an example of doing this at
+	  http://pax.grsecurity.net/et_dyn.tar.gz and practical samples at
+	  http://www.grsecurity.net/grsec-gcc-specs.tar.gz .
+
+	  NOTE: you can use the 'chpax' or 'paxctl' utilities to control this
+	  feature on a per file basis.
+
+endmenu
+
+menu "Miscellaneous hardening features"
+
+config PAX_MEMORY_SANITIZE
+	bool "Sanitize all freed memory"
+	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
+	depends on !HIBERNATION
+	help
+	  By saying Y here the kernel will erase memory pages as soon as they
+	  are freed.  This in turn reduces the lifetime of data stored in the
+	  pages, making it less likely that sensitive information such as
+	  passwords, cryptographic secrets, etc stay in memory for too long.
+
+	  This is especially useful for programs whose runtime is short, long
+	  lived processes and the kernel itself benefit from this as long as
+	  they operate on whole memory pages and ensure timely freeing of pages
+	  that may hold sensitive information.
+
+	  The tradeoff is performance impact, on a single CPU system kernel
+	  compilation sees a 3% slowdown, other systems and workloads may vary
+	  and you are advised to test this feature on your expected workload
+	  before deploying it.
+
+	  Note that this feature does not protect data stored in live pages,
+	  e.g., process memory swapped to disk may stay there for a long time.
+
+config PAX_MEMORY_STACKLEAK
+	bool "Sanitize kernel stack"
+	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
+	depends on X86
+	help
+	  By saying Y here the kernel will erase the kernel stack before it
+	  returns from a system call.  This in turn reduces the information
+	  that a kernel stack leak bug can reveal.
+
+	  Note that such a bug can still leak information that was put on
+	  the stack by the current system call (the one eventually triggering
+	  the bug) but traces of earlier system calls on the kernel stack
+	  cannot leak anymore.
+
+	  The tradeoff is performance impact: on a single CPU system kernel
+	  compilation sees a 1% slowdown, other systems and workloads may vary
+	  and you are advised to test this feature on your expected workload
+	  before deploying it.
+
+	  Note that the full feature requires a gcc with plugin support,
+	  i.e., gcc 4.5 or newer.  You may need to install the supporting
+	  headers explicitly in addition to the normal gcc package.  Using
+	  older gcc versions means that functions with large enough stack
+	  frames may leave uninitialized memory behind that may be exposed
+	  to a later syscall leaking the stack.
+
+config PAX_MEMORY_STRUCTLEAK
+	bool "Forcibly initialize local variables copied to userland"
+	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
+	help
+	  By saying Y here the kernel will zero initialize some local
+	  variables that are going to be copied to userland.  This in
+	  turn prevents unintended information leakage from the kernel
+	  stack should later code forget to explicitly set all parts of
+	  the copied variable.
+
+	  The tradeoff is less performance impact than PAX_MEMORY_STACKLEAK
+	  at a much smaller coverage.
+
+	  Note that the implementation requires a gcc with plugin support,
+	  i.e., gcc 4.5 or newer.  You may need to install the supporting
+	  headers explicitly in addition to the normal gcc package.
+
+config PAX_MEMORY_UDEREF
+	bool "Prevent invalid userland pointer dereference"
+	default y if GRKERNSEC_CONFIG_AUTO && !(X86_64 && GRKERNSEC_CONFIG_PRIORITY_PERF) && (GRKERNSEC_CONFIG_VIRT_NONE || GRKERNSEC_CONFIG_VIRT_EPT)
+	depends on (X86 || (ARM && (CPU_V6 || CPU_V7) && !ARM_LPAE)) && !UML_X86 && !XEN
+	select PAX_PER_CPU_PGD if X86_64
+	help
+	  By saying Y here the kernel will be prevented from dereferencing
+	  userland pointers in contexts where the kernel expects only kernel
+	  pointers.  This is both a useful runtime debugging feature and a
+	  security measure that prevents exploiting a class of kernel bugs.
+
+	  The tradeoff is that some virtualization solutions may experience
+	  a huge slowdown and therefore you should not enable this feature
+	  for kernels meant to run in such environments.  Whether a given VM
+	  solution is affected or not is best determined by simply trying it
+	  out, the performance impact will be obvious right on boot as this
+	  mechanism engages from very early on.  A good rule of thumb is that
+	  VMs running on CPUs without hardware virtualization support (i.e.,
+	  the majority of IA-32 CPUs) will likely experience the slowdown.
+
+config PAX_REFCOUNT
+	bool "Prevent various kernel object reference counter overflows"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC && ((ARM && (CPU_32v6 || CPU_32v6K || CPU_32v7)) || SPARC64 || X86)
+	help
+	  By saying Y here the kernel will detect and prevent overflowing
+	  various (but not all) kinds of object reference counters.  Such
+	  overflows can normally occur due to bugs only and are often, if
+	  not always, exploitable.
+
+	  The tradeoff is that data structures protected by an overflowed
+	  refcount will never be freed and therefore will leak memory.  Note
+	  that this leak also happens even without this protection but in
+	  that case the overflow can eventually trigger the freeing of the
+	  data structure while it is still being used elsewhere, resulting
+	  in the exploitable situation that this feature prevents.
+
+	  Since this has a negligible performance impact, you should enable
+	  this feature.
+
+config PAX_CONSTIFY_PLUGIN
+	bool "Automatically constify eligible structures"
+	default y
+	depends on !UML && PAX_KERNEXEC
+	help
+	  By saying Y here the compiler will automatically constify a class
+	  of types that contain only function pointers.  This reduces the
+	  kernel's attack surface and also produces a better memory layout.
+
+	  Note that the implementation requires a gcc with plugin support,
+	  i.e., gcc 4.5 or newer.  You may need to install the supporting
+	  headers explicitly in addition to the normal gcc package.
+ 
+	  Note that if some code really has to modify constified variables
+	  then the source code will have to be patched to allow it.  Examples
+	  can be found in PaX itself (the no_const attribute) and for some
+	  out-of-tree modules at http://www.grsecurity.net/~paxguy1/ .
+
+config PAX_USERCOPY
+	bool "Harden heap object copies between kernel and userland"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on ARM || IA64 || PPC || SPARC || X86
+	depends on GRKERNSEC && (SLAB || SLUB || SLOB)
+	select PAX_USERCOPY_SLABS
+	help
+	  By saying Y here the kernel will enforce the size of heap objects
+	  when they are copied in either direction between the kernel and
+	  userland, even if only a part of the heap object is copied.
+
+	  Specifically, this checking prevents information leaking from the
+	  kernel heap during kernel to userland copies (if the kernel heap
+	  object is otherwise fully initialized) and prevents kernel heap
+	  overflows during userland to kernel copies.
+
+	  Note that the current implementation provides the strictest bounds
+	  checks for the SLUB allocator.
+
+	  Enabling this option also enables per-slab cache protection against
+	  data in a given cache being copied into/out of via userland
+	  accessors.  Though the whitelist of regions will be reduced over
+	  time, it notably protects important data structures like task structs.
+
+	  If frame pointers are enabled on x86, this option will also restrict
+	  copies into and out of the kernel stack to local variables within a
+	  single frame.
+
+	  Since this has a negligible performance impact, you should enable
+	  this feature.
+
+config PAX_USERCOPY_DEBUG
+	bool
+	depends on X86 && PAX_USERCOPY
+	default n
+
+config PAX_SIZE_OVERFLOW
+	bool "Prevent various integer overflows in function size parameters"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on X86
+	help
+	  By saying Y here the kernel recomputes expressions of function
+	  arguments marked by a size_overflow attribute with double integer
+	  precision (DImode/TImode for 32/64 bit integer types).
+
+	  The recomputed argument is checked against TYPE_MAX and an event
+	  is logged on overflow and the triggering process is killed.
+
+	  Homepage: http://www.grsecurity.net/~ephox/overflow_plugin/
+
+	  Note that the implementation requires a gcc with plugin support,
+	  i.e., gcc 4.5 or newer.  You may need to install the supporting
+	  headers explicitly in addition to the normal gcc package.
+
+config PAX_LATENT_ENTROPY
+	bool "Generate some entropy during boot"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  By saying Y here the kernel will instrument early boot code to
+	  extract some entropy from both original and artificially created
+	  program state.  This will help especially embedded systems where
+	  there is little 'natural' source of entropy normally.  The cost
+	  is some slowdown of the boot process.
+
+	  When pax_extra_latent_entropy is passed on the kernel command line,
+	  entropy will be extracted from up to the first 4GB of RAM while the
+	  runtime memory allocator is being initialized.  This costs even more
+	  slowdown of the boot process.
+
+	  Note that the implementation requires a gcc with plugin support,
+	  i.e., gcc 4.5 or newer.  You may need to install the supporting
+	  headers explicitly in addition to the normal gcc package.
+
+	  Note that entropy extracted this way is not cryptographically
+	  secure!
+
+endmenu
+
+endmenu
+
+source grsecurity/Kconfig
+
+endmenu
+
+endmenu
+
 source security/keys/Kconfig
 
 config SECURITY_DMESG_RESTRICT
@@ -103,7 +1041,7 @@ config INTEL_TXT
 config LSM_MMAP_MIN_ADDR
 	int "Low address space for LSM to protect from user allocation"
 	depends on SECURITY && SECURITY_SELINUX
-	default 32768 if ARM
+	default 32768 if ALPHA || ARM || PARISC || SPARC32
 	default 65536
 	help
 	  This is the portion of low virtual memory which should be protected
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index b21830e..a7d1a17 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -614,7 +614,7 @@ static int apparmor_task_setrlimit(struct task_struct *task,
 	return error;
 }
 
-static struct security_operations apparmor_ops = {
+static struct security_operations apparmor_ops __read_only = {
 	.name =				"apparmor",
 
 	.ptrace_access_check =		apparmor_ptrace_access_check,
diff --git a/security/commoncap.c b/security/commoncap.c
index c44b6fe..932df30 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -424,6 +424,32 @@ int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data
 	return 0;
 }
 
+/* returns:
+	1 for suid privilege
+	2 for sgid privilege
+	3 for fscap privilege
+*/
+int is_privileged_binary(const struct dentry *dentry)
+{
+	struct cpu_vfs_cap_data capdata;
+	struct inode *inode = dentry->d_inode;
+
+	if (!inode || S_ISDIR(inode->i_mode))
+		return 0;
+
+	if (inode->i_mode & S_ISUID)
+		return 1;
+	if ((inode->i_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))
+		return 2;
+
+	if (!get_vfs_caps_from_disk(dentry, &capdata)) {
+		if (!cap_isclear(capdata.inheritable) || !cap_isclear(capdata.permitted))
+			return 3;
+	}
+
+	return 0;
+}
+
 /*
  * Attempt to get the on-exec apply capability sets for an executable file from
  * its xattrs and, if present, apply them to the proposed credentials being
@@ -592,6 +618,9 @@ int cap_bprm_secureexec(struct linux_binprm *bprm)
 	const struct cred *cred = current_cred();
 	kuid_t root_uid = make_kuid(cred->user_ns, 0);
 
+	if (gr_acl_enable_at_secure())
+		return 1;
+
 	if (!uid_eq(cred->uid, root_uid)) {
 		if (bprm->cap_effective)
 			return 1;
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index a41c9c1..83da6dd 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -97,8 +97,8 @@ int ima_init_crypto(void);
 extern spinlock_t ima_queue_lock;
 
 struct ima_h_table {
-	atomic_long_t len;	/* number of stored measurements in the list */
-	atomic_long_t violations;
+	atomic_long_unchecked_t len;	/* number of stored measurements in the list */
+	atomic_long_unchecked_t violations;
 	struct hlist_head queue[IMA_MEASURE_HTABLE_SIZE];
 };
 extern struct ima_h_table ima_htable;
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 1c03e8f1..398a941 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -79,7 +79,7 @@ void ima_add_violation(struct inode *inode, const unsigned char *filename,
 	int result;
 
 	/* can overflow, only indicator */
-	atomic_long_inc(&ima_htable.violations);
+	atomic_long_inc_unchecked(&ima_htable.violations);
 
 	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
 	if (!entry) {
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index 38477c9..87a60c7 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -28,12 +28,12 @@
 static int valid_policy = 1;
 #define TMPBUFLEN 12
 static ssize_t ima_show_htable_value(char __user *buf, size_t count,
-				     loff_t *ppos, atomic_long_t *val)
+				     loff_t *ppos, atomic_long_unchecked_t *val)
 {
 	char tmpbuf[TMPBUFLEN];
 	ssize_t len;
 
-	len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read(val));
+	len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read_unchecked(val));
 	return simple_read_from_buffer(buf, count, ppos, tmpbuf, len);
 }
 
diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
index ff63fe0..809cd96 100644
--- a/security/integrity/ima/ima_queue.c
+++ b/security/integrity/ima/ima_queue.c
@@ -80,7 +80,7 @@ static int ima_add_digest_entry(struct ima_template_entry *entry)
 	INIT_LIST_HEAD(&qe->later);
 	list_add_tail_rcu(&qe->later, &ima_measurements);
 
-	atomic_long_inc(&ima_htable.len);
+	atomic_long_inc_unchecked(&ima_htable.len);
 	key = ima_hash_key(entry->digest);
 	hlist_add_head_rcu(&qe->hnext, &ima_htable.queue[key]);
 	return 0;
diff --git a/security/keys/compat.c b/security/keys/compat.c
index d65fa7f..cbfe366 100644
--- a/security/keys/compat.c
+++ b/security/keys/compat.c
@@ -44,7 +44,7 @@ static long compat_keyctl_instantiate_key_iov(
 	if (ret == 0)
 		goto no_payload_free;
 
-	ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid);
+	ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid);
 err:
 	if (iov != iovstack)
 		kfree(iov);
diff --git a/security/keys/internal.h b/security/keys/internal.h
index 8bbefc3..299d03f 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -240,7 +240,7 @@ extern long keyctl_instantiate_key_iov(key_serial_t,
 extern long keyctl_invalidate_key(key_serial_t);
 
 extern long keyctl_instantiate_key_common(key_serial_t,
-					  const struct iovec *,
+					  const struct iovec __user *,
 					  unsigned, size_t, key_serial_t);
 
 /*
diff --git a/security/keys/key.c b/security/keys/key.c
index 8fb7c7b..ba3610d 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -284,7 +284,7 @@ struct key *key_alloc(struct key_type *type, const char *desc,
 
 	atomic_set(&key->usage, 1);
 	init_rwsem(&key->sem);
-	lockdep_set_class(&key->sem, &type->lock_class);
+	lockdep_set_class(&key->sem, (struct lock_class_key *)&type->lock_class);
 	key->type = type;
 	key->user = user;
 	key->quotalen = quotalen;
@@ -1032,7 +1032,9 @@ int register_key_type(struct key_type *ktype)
 	struct key_type *p;
 	int ret;
 
-	memset(&ktype->lock_class, 0, sizeof(ktype->lock_class));
+	pax_open_kernel();
+	memset((void *)&ktype->lock_class, 0, sizeof(ktype->lock_class));
+	pax_close_kernel();
 
 	ret = -EEXIST;
 	down_write(&key_types_sem);
@@ -1044,7 +1046,7 @@ int register_key_type(struct key_type *ktype)
 	}
 
 	/* store the type */
-	list_add(&ktype->link, &key_types_list);
+	pax_list_add((struct list_head *)&ktype->link, &key_types_list);
 
 	pr_notice("Key type %s registered\n", ktype->name);
 	ret = 0;
@@ -1066,7 +1068,7 @@ EXPORT_SYMBOL(register_key_type);
 void unregister_key_type(struct key_type *ktype)
 {
 	down_write(&key_types_sem);
-	list_del_init(&ktype->link);
+	pax_list_del_init((struct list_head *)&ktype->link);
 	downgrade_write(&key_types_sem);
 	key_gc_keytype(ktype);
 	pr_notice("Key type %s unregistered\n", ktype->name);
@@ -1084,10 +1086,10 @@ void __init key_init(void)
 			0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
 
 	/* add the special key types */
-	list_add_tail(&key_type_keyring.link, &key_types_list);
-	list_add_tail(&key_type_dead.link, &key_types_list);
-	list_add_tail(&key_type_user.link, &key_types_list);
-	list_add_tail(&key_type_logon.link, &key_types_list);
+	pax_list_add_tail((struct list_head *)&key_type_keyring.link, &key_types_list);
+	pax_list_add_tail((struct list_head *)&key_type_dead.link, &key_types_list);
+	pax_list_add_tail((struct list_head *)&key_type_user.link, &key_types_list);
+	pax_list_add_tail((struct list_head *)&key_type_logon.link, &key_types_list);
 
 	/* record the root user tracking */
 	rb_link_node(&root_key_user.node,
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 4b5c948..2054dc1 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -986,7 +986,7 @@ static int keyctl_change_reqkey_auth(struct key *key)
 /*
  * Copy the iovec data from userspace
  */
-static long copy_from_user_iovec(void *buffer, const struct iovec *iov,
+static long copy_from_user_iovec(void *buffer, const struct iovec __user *iov,
 				 unsigned ioc)
 {
 	for (; ioc > 0; ioc--) {
@@ -1008,7 +1008,7 @@ static long copy_from_user_iovec(void *buffer, const struct iovec *iov,
  * If successful, 0 will be returned.
  */
 long keyctl_instantiate_key_common(key_serial_t id,
-				   const struct iovec *payload_iov,
+				   const struct iovec __user *payload_iov,
 				   unsigned ioc,
 				   size_t plen,
 				   key_serial_t ringid)
@@ -1103,7 +1103,7 @@ long keyctl_instantiate_key(key_serial_t id,
 			[0].iov_len  = plen
 		};
 
-		return keyctl_instantiate_key_common(id, iov, 1, plen, ringid);
+		return keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, 1, plen, ringid);
 	}
 
 	return keyctl_instantiate_key_common(id, NULL, 0, 0, ringid);
@@ -1136,7 +1136,7 @@ long keyctl_instantiate_key_iov(key_serial_t id,
 	if (ret == 0)
 		goto no_payload_free;
 
-	ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid);
+	ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid);
 err:
 	if (iov != iovstack)
 		kfree(iov);
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 6ece7f2..ecdb55c 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -227,16 +227,16 @@ static long keyring_read(const struct key *keyring,
 			ret = -EFAULT;
 
 			for (loop = 0; loop < klist->nkeys; loop++) {
+				key_serial_t serial;
 				key = rcu_deref_link_locked(klist, loop,
 							    keyring);
+				serial = key->serial;
 
 				tmp = sizeof(key_serial_t);
 				if (tmp > buflen)
 					tmp = buflen;
 
-				if (copy_to_user(buffer,
-						 &key->serial,
-						 tmp) != 0)
+				if (copy_to_user(buffer, &serial, tmp))
 					goto error;
 
 				buflen -= tmp;
diff --git a/security/min_addr.c b/security/min_addr.c
index f728728..6457a0c 100644
--- a/security/min_addr.c
+++ b/security/min_addr.c
@@ -14,6 +14,7 @@ unsigned long dac_mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR;
  */
 static void update_mmap_min_addr(void)
 {
+#ifndef SPARC
 #ifdef CONFIG_LSM_MMAP_MIN_ADDR
 	if (dac_mmap_min_addr > CONFIG_LSM_MMAP_MIN_ADDR)
 		mmap_min_addr = dac_mmap_min_addr;
@@ -22,6 +23,7 @@ static void update_mmap_min_addr(void)
 #else
 	mmap_min_addr = dac_mmap_min_addr;
 #endif
+#endif
 }
 
 /*
diff --git a/security/security.c b/security/security.c
index 03f248b..5710c33 100644
--- a/security/security.c
+++ b/security/security.c
@@ -20,6 +20,7 @@
 #include <linux/ima.h>
 #include <linux/evm.h>
 #include <linux/fsnotify.h>
+#include <linux/mm.h>
 #include <linux/mman.h>
 #include <linux/mount.h>
 #include <linux/personality.h>
@@ -32,8 +33,8 @@
 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
 	CONFIG_DEFAULT_SECURITY;
 
-static struct security_operations *security_ops;
-static struct security_operations default_security_ops = {
+static struct security_operations *security_ops __read_only;
+static struct security_operations default_security_ops __read_only = {
 	.name	= "default",
 };
 
@@ -74,7 +75,9 @@ int __init security_init(void)
 
 void reset_security_ops(void)
 {
+	pax_open_kernel();
 	security_ops = &default_security_ops;
+	pax_close_kernel();
 }
 
 /* Save user chosen LSM */
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 7171a95..c35e879 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -96,8 +96,6 @@
 
 #define NUM_SEL_MNT_OPTS 5
 
-extern struct security_operations *security_ops;
-
 /* SECMARK reference count */
 static atomic_t selinux_secmark_refcount = ATOMIC_INIT(0);
 
@@ -5498,7 +5496,7 @@ static int selinux_key_getsecurity(struct key *key, char **_buffer)
 
 #endif
 
-static struct security_operations selinux_ops = {
+static struct security_operations selinux_ops __read_only = {
 	.name =				"selinux",
 
 	.ptrace_access_check =		selinux_ptrace_access_check,
diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
index 65f67cb..3f141ef 100644
--- a/security/selinux/include/xfrm.h
+++ b/security/selinux/include/xfrm.h
@@ -50,7 +50,7 @@ int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
 
 static inline void selinux_xfrm_notify_policyload(void)
 {
-	atomic_inc(&flow_cache_genid);
+	atomic_inc_unchecked(&flow_cache_genid);
 	rt_genid_bump(&init_net);
 }
 #else
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index fa64740..bc95b74 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -3392,7 +3392,7 @@ static int smack_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
 	return 0;
 }
 
-struct security_operations smack_ops = {
+struct security_operations smack_ops __read_only = {
 	.name =				"smack",
 
 	.ptrace_access_check =		smack_ptrace_access_check,
diff --git a/security/tomoyo/mount.c b/security/tomoyo/mount.c
index 390c646..f2f8db3 100644
--- a/security/tomoyo/mount.c
+++ b/security/tomoyo/mount.c
@@ -118,6 +118,10 @@ static int tomoyo_mount_acl(struct tomoyo_request_info *r,
 		   type == tomoyo_mounts[TOMOYO_MOUNT_MOVE]) {
 		need_dev = -1; /* dev_name is a directory */
 	} else {
+		if (!capable(CAP_SYS_ADMIN)) {
+			error = -EPERM;
+			goto out;
+		}
 		fstype = get_fs_type(type);
 		if (!fstype) {
 			error = -ENODEV;
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index a2ee362..5754f34 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -503,7 +503,7 @@ static int tomoyo_socket_sendmsg(struct socket *sock, struct msghdr *msg,
  * tomoyo_security_ops is a "struct security_operations" which is used for
  * registering TOMOYO.
  */
-static struct security_operations tomoyo_security_ops = {
+static struct security_operations tomoyo_security_ops __read_only = {
 	.name                = "tomoyo",
 	.cred_alloc_blank    = tomoyo_cred_alloc_blank,
 	.cred_prepare        = tomoyo_cred_prepare,
diff --git a/security/yama/Kconfig b/security/yama/Kconfig
index 20ef514..4182bed 100644
--- a/security/yama/Kconfig
+++ b/security/yama/Kconfig
@@ -1,6 +1,6 @@
 config SECURITY_YAMA
 	bool "Yama support"
-	depends on SECURITY
+	depends on SECURITY && !GRKERNSEC
 	select SECURITYFS
 	select SECURITY_PATH
 	default n
diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c
index 13c88fbc..f8c115e 100644
--- a/security/yama/yama_lsm.c
+++ b/security/yama/yama_lsm.c
@@ -365,7 +365,7 @@ int yama_ptrace_traceme(struct task_struct *parent)
 }
 
 #ifndef CONFIG_SECURITY_YAMA_STACKED
-static struct security_operations yama_ops = {
+static struct security_operations yama_ops __read_only = {
 	.name =			"yama",
 
 	.ptrace_access_check =	yama_ptrace_access_check,
@@ -376,28 +376,24 @@ static struct security_operations yama_ops = {
 #endif
 
 #ifdef CONFIG_SYSCTL
+static int zero __read_only;
+static int max_scope __read_only = YAMA_SCOPE_NO_ATTACH;
+
 static int yama_dointvec_minmax(struct ctl_table *table, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	int rc;
+	ctl_table_no_const yama_table;
 
 	if (write && !capable(CAP_SYS_PTRACE))
 		return -EPERM;
 
-	rc = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
-	if (rc)
-		return rc;
-
+	yama_table = *table;
 	/* Lock the max value if it ever gets set. */
-	if (write && *(int *)table->data == *(int *)table->extra2)
-		table->extra1 = table->extra2;
-
-	return rc;
+	if (ptrace_scope == max_scope)
+		yama_table.extra1 = &max_scope;
+	return proc_dointvec_minmax(&yama_table, write, buffer, lenp, ppos);
 }
 
-static int zero;
-static int max_scope = YAMA_SCOPE_NO_ATTACH;
-
 struct ctl_path yama_sysctl_path[] = {
 	{ .procname = "kernel", },
 	{ .procname = "yama", },
diff --git a/sound/aoa/codecs/onyx.c b/sound/aoa/codecs/onyx.c
index 4cedc69..e59d8a3 100644
--- a/sound/aoa/codecs/onyx.c
+++ b/sound/aoa/codecs/onyx.c
@@ -54,7 +54,7 @@ struct onyx {
 				spdif_locked:1,
 				analog_locked:1,
 				original_mute:2;
-	int			open_count;
+	local_t			open_count;
 	struct codec_info	*codec_info;
 
 	/* mutex serializes concurrent access to the device
@@ -753,7 +753,7 @@ static int onyx_open(struct codec_info_item *cii,
 	struct onyx *onyx = cii->codec_data;
 
 	mutex_lock(&onyx->mutex);
-	onyx->open_count++;
+	local_inc(&onyx->open_count);
 	mutex_unlock(&onyx->mutex);
 
 	return 0;
@@ -765,8 +765,7 @@ static int onyx_close(struct codec_info_item *cii,
 	struct onyx *onyx = cii->codec_data;
 
 	mutex_lock(&onyx->mutex);
-	onyx->open_count--;
-	if (!onyx->open_count)
+	if (local_dec_and_test(&onyx->open_count))
 		onyx->spdif_locked = onyx->analog_locked = 0;
 	mutex_unlock(&onyx->mutex);
 
diff --git a/sound/aoa/codecs/onyx.h b/sound/aoa/codecs/onyx.h
index ffd2025..df062c9 100644
--- a/sound/aoa/codecs/onyx.h
+++ b/sound/aoa/codecs/onyx.h
@@ -11,6 +11,7 @@
 #include <linux/i2c.h>
 #include <asm/pmac_low_i2c.h>
 #include <asm/prom.h>
+#include <asm/local.h>
 
 /* PCM3052 register definitions */
 
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 4c1cc51..16040040 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -1189,10 +1189,10 @@ snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream, const
 		if (in_kernel) {
 			mm_segment_t fs;
 			fs = snd_enter_user();
-			ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames);
+			ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames);
 			snd_leave_user(fs);
 		} else {
-			ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames);
+			ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames);
 		}
 		if (ret != -EPIPE && ret != -ESTRPIPE)
 			break;
@@ -1234,10 +1234,10 @@ snd_pcm_sframes_t snd_pcm_oss_read3(struct snd_pcm_substream *substream, char *p
 		if (in_kernel) {
 			mm_segment_t fs;
 			fs = snd_enter_user();
-			ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames);
+			ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames);
 			snd_leave_user(fs);
 		} else {
-			ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames);
+			ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames);
 		}
 		if (ret == -EPIPE) {
 			if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
@@ -1337,7 +1337,7 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha
 		struct snd_pcm_plugin_channel *channels;
 		size_t oss_frame_bytes = (runtime->oss.plugin_first->src_width * runtime->oss.plugin_first->src_format.channels) / 8;
 		if (!in_kernel) {
-			if (copy_from_user(runtime->oss.buffer, (const char __force __user *)buf, bytes))
+			if (copy_from_user(runtime->oss.buffer, (const char __force_user *)buf, bytes))
 				return -EFAULT;
 			buf = runtime->oss.buffer;
 		}
@@ -1407,7 +1407,7 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha
 			}
 		} else {
 			tmp = snd_pcm_oss_write2(substream,
-						 (const char __force *)buf,
+						 (const char __force_kernel *)buf,
 						 runtime->oss.period_bytes, 0);
 			if (tmp <= 0)
 				goto err;
@@ -1433,7 +1433,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf,
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	snd_pcm_sframes_t frames, frames1;
 #ifdef CONFIG_SND_PCM_OSS_PLUGINS
-	char __user *final_dst = (char __force __user *)buf;
+	char __user *final_dst = (char __force_user *)buf;
 	if (runtime->oss.plugin_first) {
 		struct snd_pcm_plugin_channel *channels;
 		size_t oss_frame_bytes = (runtime->oss.plugin_last->dst_width * runtime->oss.plugin_last->dst_format.channels) / 8;
@@ -1495,7 +1495,7 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use
 			xfer += tmp;
 			runtime->oss.buffer_used -= tmp;
 		} else {
-			tmp = snd_pcm_oss_read2(substream, (char __force *)buf,
+			tmp = snd_pcm_oss_read2(substream, (char __force_kernel *)buf,
 						runtime->oss.period_bytes, 0);
 			if (tmp <= 0)
 				goto err;
@@ -1663,7 +1663,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file)
 								   size1);
 					size1 /= runtime->channels; /* frames */
 					fs = snd_enter_user();
-					snd_pcm_lib_write(substream, (void __force __user *)runtime->oss.buffer, size1);
+					snd_pcm_lib_write(substream, (void __force_user *)runtime->oss.buffer, size1);
 					snd_leave_user(fs);
 				}
 			} else if (runtime->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) {
diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
index af49721..e85058e 100644
--- a/sound/core/pcm_compat.c
+++ b/sound/core/pcm_compat.c
@@ -31,7 +31,7 @@ static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream,
 	int err;
 
 	fs = snd_enter_user();
-	err = snd_pcm_delay(substream, &delay);
+	err = snd_pcm_delay(substream, (snd_pcm_sframes_t __force_user *)&delay);
 	snd_leave_user(fs);
 	if (err < 0)
 		return err;
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index eb560fa..69a4995 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -2806,11 +2806,11 @@ int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream,
 	switch (substream->stream) {
 	case SNDRV_PCM_STREAM_PLAYBACK:
 		result = snd_pcm_playback_ioctl1(NULL, substream, cmd,
-						 (void __user *)arg);
+						 (void __force_user *)arg);
 		break;
 	case SNDRV_PCM_STREAM_CAPTURE:
 		result = snd_pcm_capture_ioctl1(NULL, substream, cmd,
-						(void __user *)arg);
+						(void __force_user *)arg);
 		break;
 	default:
 		result = -EINVAL;
diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c
index 040c60e..989a19a 100644
--- a/sound/core/seq/seq_device.c
+++ b/sound/core/seq/seq_device.c
@@ -64,7 +64,7 @@ struct ops_list {
 	int argsize;		/* argument size */
 
 	/* operators */
-	struct snd_seq_dev_ops ops;
+	struct snd_seq_dev_ops *ops;
 
 	/* registered devices */
 	struct list_head dev_list;	/* list of devices */
@@ -333,7 +333,7 @@ int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry,
 
 	mutex_lock(&ops->reg_mutex);
 	/* copy driver operators */
-	ops->ops = *entry;
+	ops->ops = entry;
 	ops->driver |= DRIVER_LOADED;
 	ops->argsize = argsize;
 
@@ -463,7 +463,7 @@ static int init_device(struct snd_seq_device *dev, struct ops_list *ops)
 			   dev->name, ops->id, ops->argsize, dev->argsize);
 		return -EINVAL;
 	}
-	if (ops->ops.init_device(dev) >= 0) {
+	if (ops->ops->init_device(dev) >= 0) {
 		dev->status = SNDRV_SEQ_DEVICE_REGISTERED;
 		ops->num_init_devices++;
 	} else {
@@ -490,7 +490,7 @@ static int free_device(struct snd_seq_device *dev, struct ops_list *ops)
 			   dev->name, ops->id, ops->argsize, dev->argsize);
 		return -EINVAL;
 	}
-	if ((result = ops->ops.free_device(dev)) >= 0 || result == -ENXIO) {
+	if ((result = ops->ops->free_device(dev)) >= 0 || result == -ENXIO) {
 		dev->status = SNDRV_SEQ_DEVICE_FREE;
 		dev->driver_data = NULL;
 		ops->num_init_devices--;
diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c
index 4e0dd22..7a1f32c 100644
--- a/sound/drivers/mts64.c
+++ b/sound/drivers/mts64.c
@@ -29,6 +29,7 @@
 #include <sound/initval.h>
 #include <sound/rawmidi.h>
 #include <sound/control.h>
+#include <asm/local.h>
 
 #define CARD_NAME "Miditerminal 4140"
 #define DRIVER_NAME "MTS64"
@@ -67,7 +68,7 @@ struct mts64 {
 	struct pardevice *pardev;
 	int pardev_claimed;
 
-	int open_count;
+	local_t open_count;
 	int current_midi_output_port;
 	int current_midi_input_port;
 	u8 mode[MTS64_NUM_INPUT_PORTS];
@@ -697,7 +698,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream)
 {
 	struct mts64 *mts = substream->rmidi->private_data;
 
-	if (mts->open_count == 0) {
+	if (local_read(&mts->open_count) == 0) {
 		/* We don't need a spinlock here, because this is just called 
 		   if the device has not been opened before. 
 		   So there aren't any IRQs from the device */
@@ -705,7 +706,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream)
 
 		msleep(50);
 	}
-	++(mts->open_count);
+	local_inc(&mts->open_count);
 
 	return 0;
 }
@@ -715,8 +716,7 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream)
 	struct mts64 *mts = substream->rmidi->private_data;
 	unsigned long flags;
 
-	--(mts->open_count);
-	if (mts->open_count == 0) {
+	if (local_dec_return(&mts->open_count) == 0) {
 		/* We need the spinlock_irqsave here because we can still
 		   have IRQs at this point */
 		spin_lock_irqsave(&mts->lock, flags);
@@ -725,8 +725,8 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream)
 
 		msleep(500);
 
-	} else if (mts->open_count < 0)
-		mts->open_count = 0;
+	} else if (local_read(&mts->open_count) < 0)
+		local_set(&mts->open_count, 0);
 
 	return 0;
 }
diff --git a/sound/drivers/opl4/opl4_lib.c b/sound/drivers/opl4/opl4_lib.c
index b953fb4..1999c01 100644
--- a/sound/drivers/opl4/opl4_lib.c
+++ b/sound/drivers/opl4/opl4_lib.c
@@ -29,7 +29,7 @@ MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
 MODULE_DESCRIPTION("OPL4 driver");
 MODULE_LICENSE("GPL");
 
-static void inline snd_opl4_wait(struct snd_opl4 *opl4)
+static inline void snd_opl4_wait(struct snd_opl4 *opl4)
 {
 	int timeout = 10;
 	while ((inb(opl4->fm_port) & OPL4_STATUS_BUSY) && --timeout > 0)
diff --git a/sound/drivers/portman2x4.c b/sound/drivers/portman2x4.c
index 991018d..8984740 100644
--- a/sound/drivers/portman2x4.c
+++ b/sound/drivers/portman2x4.c
@@ -48,6 +48,7 @@
 #include <sound/initval.h>
 #include <sound/rawmidi.h>
 #include <sound/control.h>
+#include <asm/local.h>
 
 #define CARD_NAME "Portman 2x4"
 #define DRIVER_NAME "portman"
@@ -85,7 +86,7 @@ struct portman {
 	struct pardevice *pardev;
 	int pardev_claimed;
 
-	int open_count;
+	local_t open_count;
 	int mode[PORTMAN_NUM_INPUT_PORTS];
 	struct snd_rawmidi_substream *midi_input[PORTMAN_NUM_INPUT_PORTS];
 };
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index ea995af..f1bfa37 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -389,7 +389,7 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
 		ptr = s->pcm_buffer_pointer + data_blocks;
 		if (ptr >= pcm->runtime->buffer_size)
 			ptr -= pcm->runtime->buffer_size;
-		ACCESS_ONCE(s->pcm_buffer_pointer) = ptr;
+		ACCESS_ONCE_RW(s->pcm_buffer_pointer) = ptr;
 
 		s->pcm_period_pointer += data_blocks;
 		if (s->pcm_period_pointer >= pcm->runtime->period_size) {
@@ -557,7 +557,7 @@ EXPORT_SYMBOL(amdtp_out_stream_pcm_pointer);
  */
 void amdtp_out_stream_update(struct amdtp_out_stream *s)
 {
-	ACCESS_ONCE(s->source_node_id_field) =
+	ACCESS_ONCE_RW(s->source_node_id_field) =
 		(fw_parent_device(s->unit)->card->node_id & 0x3f) << 24;
 }
 EXPORT_SYMBOL(amdtp_out_stream_update);
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index b680c5e..061b7a0 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -139,7 +139,7 @@ static inline bool amdtp_out_streaming_error(struct amdtp_out_stream *s)
 static inline void amdtp_out_stream_pcm_trigger(struct amdtp_out_stream *s,
 						struct snd_pcm_substream *pcm)
 {
-	ACCESS_ONCE(s->pcm) = pcm;
+	ACCESS_ONCE_RW(s->pcm) = pcm;
 }
 
 static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc)
diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
index d428ffe..751ef78 100644
--- a/sound/firewire/isight.c
+++ b/sound/firewire/isight.c
@@ -96,7 +96,7 @@ static void isight_update_pointers(struct isight *isight, unsigned int count)
 	ptr += count;
 	if (ptr >= runtime->buffer_size)
 		ptr -= runtime->buffer_size;
-	ACCESS_ONCE(isight->buffer_pointer) = ptr;
+	ACCESS_ONCE_RW(isight->buffer_pointer) = ptr;
 
 	isight->period_counter += count;
 	if (isight->period_counter >= runtime->period_size) {
@@ -307,7 +307,7 @@ static int isight_hw_params(struct snd_pcm_substream *substream,
 	if (err < 0)
 		return err;
 
-	ACCESS_ONCE(isight->pcm_active) = true;
+	ACCESS_ONCE_RW(isight->pcm_active) = true;
 
 	return 0;
 }
@@ -340,7 +340,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream)
 {
 	struct isight *isight = substream->private_data;
 
-	ACCESS_ONCE(isight->pcm_active) = false;
+	ACCESS_ONCE_RW(isight->pcm_active) = false;
 
 	mutex_lock(&isight->mutex);
 	isight_stop_streaming(isight);
@@ -433,10 +433,10 @@ static int isight_trigger(struct snd_pcm_substream *substream, int cmd)
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
-		ACCESS_ONCE(isight->pcm_running) = true;
+		ACCESS_ONCE_RW(isight->pcm_running) = true;
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
-		ACCESS_ONCE(isight->pcm_running) = false;
+		ACCESS_ONCE_RW(isight->pcm_running) = false;
 		break;
 	default:
 		return -EINVAL;
diff --git a/sound/firewire/scs1x.c b/sound/firewire/scs1x.c
index 844a555..985ab83 100644
--- a/sound/firewire/scs1x.c
+++ b/sound/firewire/scs1x.c
@@ -74,7 +74,7 @@ static void scs_output_trigger(struct snd_rawmidi_substream *stream, int up)
 {
 	struct scs *scs = stream->rmidi->private_data;
 
-	ACCESS_ONCE(scs->output) = up ? stream : NULL;
+	ACCESS_ONCE_RW(scs->output) = up ? stream : NULL;
 	if (up) {
 		scs->output_idle = false;
 		tasklet_schedule(&scs->tasklet);
@@ -257,7 +257,7 @@ static void scs_input_trigger(struct snd_rawmidi_substream *stream, int up)
 {
 	struct scs *scs = stream->rmidi->private_data;
 
-	ACCESS_ONCE(scs->input) = up ? stream : NULL;
+	ACCESS_ONCE_RW(scs->input) = up ? stream : NULL;
 }
 
 static void scs_input_escaped_byte(struct snd_rawmidi_substream *stream,
@@ -457,8 +457,8 @@ static int scs_remove(struct device *dev)
 
 	snd_card_disconnect(scs->card);
 
-	ACCESS_ONCE(scs->output) = NULL;
-	ACCESS_ONCE(scs->input) = NULL;
+	ACCESS_ONCE_RW(scs->output) = NULL;
+	ACCESS_ONCE_RW(scs->input) = NULL;
 
 	wait_event(scs->idle_wait, scs->output_idle);
 
diff --git a/sound/oss/sb_audio.c b/sound/oss/sb_audio.c
index 048439a..3be9f6f 100644
--- a/sound/oss/sb_audio.c
+++ b/sound/oss/sb_audio.c
@@ -904,7 +904,7 @@ sb16_copy_from_user(int dev,
 		buf16 = (signed short *)(localbuf + localoffs);
 		while (c)
 		{
-			locallen = (c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c);
+			locallen = ((unsigned)c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c);
 			if (copy_from_user(lbuf8,
 					   userbuf+useroffs + p,
 					   locallen))
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
index 7d8803a..559f8d0 100644
--- a/sound/oss/swarm_cs4297a.c
+++ b/sound/oss/swarm_cs4297a.c
@@ -2621,7 +2621,6 @@ static int __init cs4297a_init(void)
 {
 	struct cs4297a_state *s;
 	u32 pwr, id;
-	mm_segment_t fs;
 	int rval;
 #ifndef CONFIG_BCM_CS4297A_CSWARM
 	u64 cfg;
@@ -2711,22 +2710,23 @@ static int __init cs4297a_init(void)
         if (!rval) {
 		char *sb1250_duart_present;
 
+#if 0
+                mm_segment_t fs;
                 fs = get_fs();
                 set_fs(KERNEL_DS);
-#if 0
                 val = SOUND_MASK_LINE;
                 mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val);
                 for (i = 0; i < ARRAY_SIZE(initvol); i++) {
                         val = initvol[i].vol;
                         mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val);
                 }
+                set_fs(fs);
 //                cs4297a_write_ac97(s, 0x18, 0x0808);
 #else
                 //                cs4297a_write_ac97(s, 0x5e, 0x180);
                 cs4297a_write_ac97(s, 0x02, 0x0808);
                 cs4297a_write_ac97(s, 0x18, 0x0808);
 #endif
-                set_fs(fs);
 
                 list_add(&s->list, &cs4297a_devs);
 
diff --git a/sound/pci/ymfpci/ymfpci.h b/sound/pci/ymfpci/ymfpci.h
index 4631a23..001ae57 100644
--- a/sound/pci/ymfpci/ymfpci.h
+++ b/sound/pci/ymfpci/ymfpci.h
@@ -358,7 +358,7 @@ struct snd_ymfpci {
 	spinlock_t reg_lock;
 	spinlock_t voice_lock;
 	wait_queue_head_t interrupt_sleep;
-	atomic_t interrupt_sleep_count;
+	atomic_unchecked_t interrupt_sleep_count;
 	struct snd_info_entry *proc_entry;
 	const struct firmware *dsp_microcode;
 	const struct firmware *controller_microcode;
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 22056c5..25d3244 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -202,8 +202,8 @@ static void snd_ymfpci_hw_stop(struct snd_ymfpci *chip)
 		if ((snd_ymfpci_readl(chip, YDSXGR_STATUS) & 2) == 0)
 			break;
 	}
-	if (atomic_read(&chip->interrupt_sleep_count)) {
-		atomic_set(&chip->interrupt_sleep_count, 0);
+	if (atomic_read_unchecked(&chip->interrupt_sleep_count)) {
+		atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
 		wake_up(&chip->interrupt_sleep);
 	}
       __end:
@@ -787,7 +787,7 @@ static void snd_ymfpci_irq_wait(struct snd_ymfpci *chip)
 		 	continue;
 		init_waitqueue_entry(&wait, current);
 		add_wait_queue(&chip->interrupt_sleep, &wait);
-		atomic_inc(&chip->interrupt_sleep_count);
+		atomic_inc_unchecked(&chip->interrupt_sleep_count);
 		schedule_timeout_uninterruptible(msecs_to_jiffies(50));
 		remove_wait_queue(&chip->interrupt_sleep, &wait);
 	}
@@ -825,8 +825,8 @@ static irqreturn_t snd_ymfpci_interrupt(int irq, void *dev_id)
 		snd_ymfpci_writel(chip, YDSXGR_MODE, mode);
 		spin_unlock(&chip->reg_lock);
 
-		if (atomic_read(&chip->interrupt_sleep_count)) {
-			atomic_set(&chip->interrupt_sleep_count, 0);
+		if (atomic_read_unchecked(&chip->interrupt_sleep_count)) {
+			atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
 			wake_up(&chip->interrupt_sleep);
 		}
 	}
@@ -2421,7 +2421,7 @@ int snd_ymfpci_create(struct snd_card *card,
 	spin_lock_init(&chip->reg_lock);
 	spin_lock_init(&chip->voice_lock);
 	init_waitqueue_head(&chip->interrupt_sleep);
-	atomic_set(&chip->interrupt_sleep_count, 0);
+	atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
 	chip->card = card;
 	chip->pci = pci;
 	chip->irq = -1;
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 7decbd9..d17d9d0 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -643,7 +643,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
 {
 	struct fsl_ssi_private *ssi_private;
 	int ret = 0;
-	struct device_attribute *dev_attr = NULL;
+	device_attribute_no_const *dev_attr = NULL;
 	struct device_node *np = pdev->dev.of_node;
 	const char *p, *sprop;
 	const uint32_t *iprop;
diff --git a/tools/gcc/.gitignore b/tools/gcc/.gitignore
new file mode 100644
index 0000000..50f2f2f
--- /dev/null
+++ b/tools/gcc/.gitignore
@@ -0,0 +1 @@
+size_overflow_hash.h
diff --git a/tools/gcc/Makefile b/tools/gcc/Makefile
new file mode 100644
index 0000000..144dbee
--- /dev/null
+++ b/tools/gcc/Makefile
@@ -0,0 +1,45 @@
+#CC := gcc
+#PLUGIN_SOURCE_FILES := pax_plugin.c
+#PLUGIN_OBJECT_FILES := $(patsubst %.c,%.o,$(PLUGIN_SOURCE_FILES))
+GCCPLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
+#CFLAGS += -I$(GCCPLUGINS_DIR)/include -fPIC -O2 -Wall -W -std=gnu99
+
+ifeq ($(PLUGINCC),$(HOSTCC))
+HOSTLIBS := hostlibs
+HOST_EXTRACFLAGS += -I$(GCCPLUGINS_DIR)/include -std=gnu99 -ggdb
+else
+HOSTLIBS := hostcxxlibs
+HOST_EXTRACXXFLAGS += -I$(GCCPLUGINS_DIR)/include -std=gnu++98 -ggdb -Wno-unused-parameter
+endif
+
+$(HOSTLIBS)-$(CONFIG_PAX_CONSTIFY_PLUGIN) := constify_plugin.so
+$(HOSTLIBS)-$(CONFIG_PAX_MEMORY_STACKLEAK) += stackleak_plugin.so
+$(HOSTLIBS)-$(CONFIG_KALLOCSTAT_PLUGIN) += kallocstat_plugin.so
+$(HOSTLIBS)-$(CONFIG_PAX_KERNEXEC_PLUGIN) += kernexec_plugin.so
+$(HOSTLIBS)-$(CONFIG_CHECKER_PLUGIN) += checker_plugin.so
+$(HOSTLIBS)-y += colorize_plugin.so
+$(HOSTLIBS)-$(CONFIG_PAX_SIZE_OVERFLOW) += size_overflow_plugin.so
+$(HOSTLIBS)-$(CONFIG_PAX_LATENT_ENTROPY) += latent_entropy_plugin.so
+$(HOSTLIBS)-$(CONFIG_PAX_MEMORY_STRUCTLEAK) += structleak_plugin.so
+
+always := $($(HOSTLIBS)-y)
+
+constify_plugin-objs := constify_plugin.o
+stackleak_plugin-objs := stackleak_plugin.o
+kallocstat_plugin-objs := kallocstat_plugin.o
+kernexec_plugin-objs := kernexec_plugin.o
+checker_plugin-objs := checker_plugin.o
+colorize_plugin-objs := colorize_plugin.o
+size_overflow_plugin-objs := size_overflow_plugin.o
+latent_entropy_plugin-objs := latent_entropy_plugin.o
+structleak_plugin-objs := structleak_plugin.o
+
+$(obj)/size_overflow_plugin.o: $(objtree)/$(obj)/size_overflow_hash.h
+
+quiet_cmd_build_size_overflow_hash = GENHASH  $@
+      cmd_build_size_overflow_hash = \
+	$(CONFIG_SHELL) $(srctree)/$(src)/generate_size_overflow_hash.sh -d $< -o $@
+$(objtree)/$(obj)/size_overflow_hash.h: $(src)/size_overflow_hash.data FORCE
+	$(call if_changed,build_size_overflow_hash)
+
+targets += size_overflow_hash.h
diff --git a/tools/gcc/checker_plugin.c b/tools/gcc/checker_plugin.c
new file mode 100644
index 0000000..22f03c0
--- /dev/null
+++ b/tools/gcc/checker_plugin.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright 2011 by the PaX Team <pageexec@freemail.hu>
+ * Licensed under the GPL v2
+ *
+ * Note: the choice of the license means that the compilation process is
+ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
+ *       but for the kernel it doesn't matter since it doesn't link against
+ *       any of the gcc libraries
+ *
+ * gcc plugin to implement various sparse (source code checker) features
+ *
+ * TODO:
+ * - define separate __iomem, __percpu and __rcu address spaces (lots of code to patch)
+ *
+ * BUGS:
+ * - none known
+ */
+#include "gcc-plugin.h"
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "tree-pass.h"
+#include "flags.h"
+#include "intl.h"
+#include "toplev.h"
+#include "plugin.h"
+//#include "expr.h" where are you...
+#include "diagnostic.h"
+#include "plugin-version.h"
+#include "tm.h"
+#include "function.h"
+#include "basic-block.h"
+#include "gimple.h"
+#include "rtl.h"
+#include "emit-rtl.h"
+#include "tree-flow.h"
+#include "target.h"
+
+extern void c_register_addr_space (const char *str, addr_space_t as);
+extern enum machine_mode default_addr_space_pointer_mode (addr_space_t);
+extern enum machine_mode default_addr_space_address_mode (addr_space_t);
+extern bool default_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as);
+extern bool default_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as);
+extern rtx default_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as);
+
+extern void print_gimple_stmt(FILE *, gimple, int, int);
+extern rtx emit_move_insn(rtx x, rtx y);
+
+int plugin_is_GPL_compatible;
+
+static struct plugin_info checker_plugin_info = {
+	.version	= "201111150100",
+	.help		= NULL,
+};
+
+#define ADDR_SPACE_KERNEL		0
+#define ADDR_SPACE_FORCE_KERNEL		1
+#define ADDR_SPACE_USER			2
+#define ADDR_SPACE_FORCE_USER		3
+#define ADDR_SPACE_IOMEM		0
+#define ADDR_SPACE_FORCE_IOMEM		0
+#define ADDR_SPACE_PERCPU		0
+#define ADDR_SPACE_FORCE_PERCPU		0
+#define ADDR_SPACE_RCU			0
+#define ADDR_SPACE_FORCE_RCU		0
+
+static enum machine_mode checker_addr_space_pointer_mode(addr_space_t addrspace)
+{
+	return default_addr_space_pointer_mode(ADDR_SPACE_GENERIC);
+}
+
+static enum machine_mode checker_addr_space_address_mode(addr_space_t addrspace)
+{
+	return default_addr_space_address_mode(ADDR_SPACE_GENERIC);
+}
+
+static bool checker_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as)
+{
+	return default_addr_space_valid_pointer_mode(mode, as);
+}
+
+static bool checker_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as)
+{
+	return default_addr_space_legitimate_address_p(mode, mem, strict, ADDR_SPACE_GENERIC);
+}
+
+static rtx checker_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as)
+{
+	return default_addr_space_legitimize_address(x, oldx, mode, as);
+}
+
+static bool checker_addr_space_subset_p(addr_space_t subset, addr_space_t superset)
+{
+	if (subset == ADDR_SPACE_FORCE_KERNEL && superset == ADDR_SPACE_KERNEL)
+		return true;
+
+	if (subset == ADDR_SPACE_FORCE_USER && superset == ADDR_SPACE_USER)
+		return true;
+
+	if (subset == ADDR_SPACE_FORCE_IOMEM && superset == ADDR_SPACE_IOMEM)
+		return true;
+
+	if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_USER)
+		return true;
+
+	if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_IOMEM)
+		return true;
+
+	if (subset == ADDR_SPACE_USER && superset == ADDR_SPACE_FORCE_KERNEL)
+		return true;
+
+	if (subset == ADDR_SPACE_IOMEM && superset == ADDR_SPACE_FORCE_KERNEL)
+		return true;
+
+	return subset == superset;
+}
+
+static rtx checker_addr_space_convert(rtx op, tree from_type, tree to_type)
+{
+//	addr_space_t from_as = TYPE_ADDR_SPACE(TREE_TYPE(from_type));
+//	addr_space_t to_as = TYPE_ADDR_SPACE(TREE_TYPE(to_type));
+
+	return op;
+}
+
+static void register_checker_address_spaces(void *event_data, void *data)
+{
+	c_register_addr_space("__kernel", ADDR_SPACE_KERNEL);
+	c_register_addr_space("__force_kernel", ADDR_SPACE_FORCE_KERNEL);
+	c_register_addr_space("__user", ADDR_SPACE_USER);
+	c_register_addr_space("__force_user", ADDR_SPACE_FORCE_USER);
+//	c_register_addr_space("__iomem", ADDR_SPACE_IOMEM);
+//	c_register_addr_space("__force_iomem", ADDR_SPACE_FORCE_IOMEM);
+//	c_register_addr_space("__percpu", ADDR_SPACE_PERCPU);
+//	c_register_addr_space("__force_percpu", ADDR_SPACE_FORCE_PERCPU);
+//	c_register_addr_space("__rcu", ADDR_SPACE_RCU);
+//	c_register_addr_space("__force_rcu", ADDR_SPACE_FORCE_RCU);
+
+	targetm.addr_space.pointer_mode		= checker_addr_space_pointer_mode;
+	targetm.addr_space.address_mode		= checker_addr_space_address_mode;
+	targetm.addr_space.valid_pointer_mode	= checker_addr_space_valid_pointer_mode;
+	targetm.addr_space.legitimate_address_p	= checker_addr_space_legitimate_address_p;
+//	targetm.addr_space.legitimize_address	= checker_addr_space_legitimize_address;
+	targetm.addr_space.subset_p		= checker_addr_space_subset_p;
+	targetm.addr_space.convert		= checker_addr_space_convert;
+}
+
+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
+{
+	const char * const plugin_name = plugin_info->base_name;
+	const int argc = plugin_info->argc;
+	const struct plugin_argument * const argv = plugin_info->argv;
+	int i;
+
+	if (!plugin_default_version_check(version, &gcc_version)) {
+		error(G_("incompatible gcc/plugin versions"));
+		return 1;
+	}
+
+	register_callback(plugin_name, PLUGIN_INFO, NULL, &checker_plugin_info);
+
+	for (i = 0; i < argc; ++i)
+		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
+
+	if (TARGET_64BIT == 0)
+		return 0;
+
+	register_callback(plugin_name, PLUGIN_PRAGMAS, register_checker_address_spaces, NULL);
+
+	return 0;
+}
diff --git a/tools/gcc/colorize_plugin.c b/tools/gcc/colorize_plugin.c
new file mode 100644
index 0000000..414fe5e
--- /dev/null
+++ b/tools/gcc/colorize_plugin.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2012-2013 by PaX Team <pageexec@freemail.hu>
+ * Licensed under the GPL v2
+ *
+ * Note: the choice of the license means that the compilation process is
+ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
+ *       but for the kernel it doesn't matter since it doesn't link against
+ *       any of the gcc libraries
+ *
+ * gcc plugin to colorize diagnostic output
+ *
+ */
+
+#include "gcc-plugin.h"
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "tree-pass.h"
+#include "flags.h"
+#include "intl.h"
+#include "toplev.h"
+#include "plugin.h"
+#include "diagnostic.h"
+#include "plugin-version.h"
+#include "tm.h"
+
+int plugin_is_GPL_compatible;
+
+static struct plugin_info colorize_plugin_info = {
+	.version	= "201302112000",
+	.help		= NULL,
+};
+
+#define GREEN		"\033[32m\033[2m"
+#define LIGHTGREEN	"\033[32m\033[1m"
+#define YELLOW		"\033[33m\033[2m"
+#define LIGHTYELLOW	"\033[33m\033[1m"
+#define RED		"\033[31m\033[2m"
+#define LIGHTRED	"\033[31m\033[1m"
+#define BLUE		"\033[34m\033[2m"
+#define LIGHTBLUE	"\033[34m\033[1m"
+#define BRIGHT		"\033[m\033[1m"
+#define NORMAL		"\033[m"
+
+static diagnostic_starter_fn old_starter;
+static diagnostic_finalizer_fn old_finalizer;
+
+static void start_colorize(diagnostic_context *context, diagnostic_info *diagnostic)
+{
+	const char *color;
+	char *newprefix;
+
+	switch (diagnostic->kind) {
+	case DK_NOTE:
+		color = LIGHTBLUE;
+		break;
+
+	case DK_PEDWARN:
+	case DK_WARNING:
+		color = LIGHTYELLOW;
+		break;
+
+	case DK_ERROR:
+	case DK_FATAL:
+	case DK_ICE:
+	case DK_PERMERROR:
+	case DK_SORRY:
+		color = LIGHTRED;
+		break;
+
+	default:
+		color = NORMAL;
+	}
+
+	old_starter(context, diagnostic);
+	if (-1 == asprintf(&newprefix, "%s%s" NORMAL, color, context->printer->prefix))
+		return;
+	pp_destroy_prefix(context->printer);
+	pp_set_prefix(context->printer, newprefix);
+}
+
+static void finalize_colorize(diagnostic_context *context, diagnostic_info *diagnostic)
+{
+	old_finalizer(context, diagnostic);
+}
+
+static void colorize_arm(void)
+{
+	old_starter = diagnostic_starter(global_dc);
+	old_finalizer = diagnostic_finalizer(global_dc);
+
+	diagnostic_starter(global_dc) = start_colorize;
+	diagnostic_finalizer(global_dc) = finalize_colorize;
+}
+
+static unsigned int execute_colorize_rearm(void)
+{
+	if (diagnostic_starter(global_dc) == start_colorize)
+		return 0;
+
+	colorize_arm();
+	return 0;
+}
+
+struct simple_ipa_opt_pass pass_ipa_colorize_rearm = {
+	.pass = {
+		.type			= SIMPLE_IPA_PASS,
+		.name			= "colorize_rearm",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= NULL,
+		.execute		= execute_colorize_rearm,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= 0,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0,
+		.todo_flags_finish	= 0
+	}
+};
+
+static void colorize_start_unit(void *gcc_data, void *user_data)
+{
+	colorize_arm();
+}
+
+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
+{
+	const char * const plugin_name = plugin_info->base_name;
+	struct register_pass_info colorize_rearm_pass_info = {
+		.pass				= &pass_ipa_colorize_rearm.pass,
+		.reference_pass_name		= "*free_lang_data",
+		.ref_pass_instance_number	= 1,
+		.pos_op 			= PASS_POS_INSERT_AFTER
+	};
+
+	if (!plugin_default_version_check(version, &gcc_version)) {
+		error(G_("incompatible gcc/plugin versions"));
+		return 1;
+	}
+
+	register_callback(plugin_name, PLUGIN_INFO, NULL, &colorize_plugin_info);
+	register_callback(plugin_name, PLUGIN_START_UNIT, &colorize_start_unit, NULL);
+	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &colorize_rearm_pass_info);
+	return 0;
+}
diff --git a/tools/gcc/constify_plugin.c b/tools/gcc/constify_plugin.c
new file mode 100644
index 0000000..c17312d
--- /dev/null
+++ b/tools/gcc/constify_plugin.c
@@ -0,0 +1,560 @@
+/*
+ * Copyright 2011 by Emese Revfy <re.emese@gmail.com>
+ * Copyright 2011-2013 by PaX Team <pageexec@freemail.hu>
+ * Licensed under the GPL v2, or (at your option) v3
+ *
+ * This gcc plugin constifies all structures which contain only function pointers or are explicitly marked for constification.
+ *
+ * Homepage:
+ * http://www.grsecurity.net/~ephox/const_plugin/
+ *
+ * Usage:
+ * $ gcc -I`gcc -print-file-name=plugin`/include -fPIC -shared -O2 -o constify_plugin.so constify_plugin.c
+ * $ gcc -fplugin=constify_plugin.so test.c -O2
+ */
+
+#include "gcc-plugin.h"
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "tree-pass.h"
+#include "flags.h"
+#include "intl.h"
+#include "toplev.h"
+#include "plugin.h"
+#include "diagnostic.h"
+#include "plugin-version.h"
+#include "tm.h"
+#include "function.h"
+#include "basic-block.h"
+#include "gimple.h"
+#include "rtl.h"
+#include "emit-rtl.h"
+#include "tree-flow.h"
+#include "target.h"
+#include "langhooks.h"
+
+// should come from c-tree.h if only it were installed for gcc 4.5...
+#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)
+
+// unused type flag in all versions 4.5-4.8
+#define TYPE_CONSTIFY_VISITED(TYPE) TYPE_LANG_FLAG_4(TYPE)
+
+int plugin_is_GPL_compatible;
+
+static struct plugin_info const_plugin_info = {
+	.version	= "201305231310",
+	.help		= "no-constify\tturn off constification\n",
+};
+
+typedef struct {
+	bool has_fptr_field;
+	bool has_writable_field;
+	bool has_do_const_field;
+	bool has_no_const_field;
+} constify_info;
+
+static const_tree get_field_type(const_tree field)
+{
+	return strip_array_types(TREE_TYPE(field));
+}
+
+static bool is_fptr(const_tree field)
+{
+	const_tree ptr = get_field_type(field);
+
+	if (TREE_CODE(ptr) != POINTER_TYPE)
+		return false;
+
+	return TREE_CODE(TREE_TYPE(ptr)) == FUNCTION_TYPE;
+}
+
+/*
+ * determine whether the given structure type meets the requirements for automatic constification,
+ * including the constification attributes on nested structure types
+ */
+static void constifiable(const_tree node, constify_info *cinfo)
+{
+	const_tree field;
+
+	gcc_assert(TREE_CODE(node) == RECORD_TYPE || TREE_CODE(node) == UNION_TYPE);
+
+	// e.g., pointer to structure fields while still constructing the structure type
+	if (TYPE_FIELDS(node) == NULL_TREE)
+		return;
+
+	for (field = TYPE_FIELDS(node); field; field = TREE_CHAIN(field)) {
+		const_tree type = get_field_type(field);
+		enum tree_code code = TREE_CODE(type);
+
+		if (node == type)
+			continue;
+
+		if (is_fptr(field))
+			cinfo->has_fptr_field = true;
+		else if (!TREE_READONLY(field))
+			cinfo->has_writable_field = true;
+
+		if (code == RECORD_TYPE || code == UNION_TYPE) {
+			if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type)))
+				cinfo->has_do_const_field = true;
+			else if (lookup_attribute("no_const", TYPE_ATTRIBUTES(type)))
+				cinfo->has_no_const_field = true;
+			else
+				constifiable(type, cinfo);
+		}
+	}
+}
+
+static bool constified(const_tree node)
+{
+	constify_info cinfo = {
+		.has_fptr_field = false,
+		.has_writable_field = false,
+		.has_do_const_field = false,
+		.has_no_const_field = false
+	};
+
+	gcc_assert(TREE_CODE(node) == RECORD_TYPE || TREE_CODE(node) == UNION_TYPE);
+
+	if (lookup_attribute("no_const", TYPE_ATTRIBUTES(node))) {
+		gcc_assert(!TYPE_READONLY(node));
+		return false;
+	}
+
+	if (lookup_attribute("do_const", TYPE_ATTRIBUTES(node))) {
+		gcc_assert(TYPE_READONLY(node));
+		return true;
+	}
+
+	constifiable(node, &cinfo);
+	if ((!cinfo.has_fptr_field || cinfo.has_writable_field) && !cinfo.has_do_const_field)
+		return false;
+
+	return TYPE_READONLY(node);
+}
+
+static void deconstify_tree(tree node);
+
+static void deconstify_type(tree type)
+{
+	tree field;
+
+	gcc_assert(TREE_CODE(type) == RECORD_TYPE || TREE_CODE(type) == UNION_TYPE);
+
+	for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) {
+		const_tree fieldtype = get_field_type(field);
+
+		// special case handling of simple ptr-to-same-array-type members
+		if (TREE_CODE(TREE_TYPE(field)) == POINTER_TYPE) {
+			const_tree ptrtype = TREE_TYPE(TREE_TYPE(field));
+
+			if (TREE_CODE(ptrtype) != RECORD_TYPE && TREE_CODE(ptrtype) != UNION_TYPE)
+				continue;
+			if (TREE_TYPE(TREE_TYPE(field)) == type)
+				continue;
+			if (TYPE_MAIN_VARIANT(ptrtype) == TYPE_MAIN_VARIANT(type)) {
+				TREE_TYPE(field) = copy_node(TREE_TYPE(field));
+				TREE_TYPE(TREE_TYPE(field)) = type;
+			}
+			continue;
+		}
+		if (TREE_CODE(fieldtype) != RECORD_TYPE && TREE_CODE(fieldtype) != UNION_TYPE)
+			continue;
+		if (!constified(fieldtype))
+			continue;
+
+		deconstify_tree(field);
+		TREE_READONLY(field) = 0;
+	}
+	TYPE_READONLY(type) = 0;
+	C_TYPE_FIELDS_READONLY(type) = 0;
+	if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type)))
+		TYPE_ATTRIBUTES(type) = remove_attribute("do_const", TYPE_ATTRIBUTES(type));
+}
+
+static void deconstify_tree(tree node)
+{
+	tree old_type, new_type, field;
+
+	old_type = TREE_TYPE(node);
+	while (TREE_CODE(old_type) == ARRAY_TYPE && TREE_CODE(TREE_TYPE(old_type)) != ARRAY_TYPE) {
+		node = TREE_TYPE(node) = copy_node(old_type);
+		old_type = TREE_TYPE(old_type);
+	}
+
+	gcc_assert(TREE_CODE(old_type) == RECORD_TYPE || TREE_CODE(old_type) == UNION_TYPE);
+	gcc_assert(TYPE_READONLY(old_type) && (TYPE_QUALS(old_type) & TYPE_QUAL_CONST));
+
+	new_type = build_qualified_type(old_type, TYPE_QUALS(old_type) & ~TYPE_QUAL_CONST);
+	TYPE_FIELDS(new_type) = copy_list(TYPE_FIELDS(new_type));
+	for (field = TYPE_FIELDS(new_type); field; field = TREE_CHAIN(field))
+		DECL_FIELD_CONTEXT(field) = new_type;
+
+	deconstify_type(new_type);
+
+	TREE_TYPE(node) = new_type;
+}
+
+static tree handle_no_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
+{
+	tree type;
+	constify_info cinfo = {
+		.has_fptr_field = false,
+		.has_writable_field = false,
+		.has_do_const_field = false,
+		.has_no_const_field = false
+	};
+
+	*no_add_attrs = true;
+	if (TREE_CODE(*node) == FUNCTION_DECL) {
+		error("%qE attribute does not apply to functions", name);
+		return NULL_TREE;
+	}
+
+	if (TREE_CODE(*node) == PARM_DECL) {
+		error("%qE attribute does not apply to function parameters", name);
+		return NULL_TREE;
+	}
+
+	if (TREE_CODE(*node) == VAR_DECL) {
+		error("%qE attribute does not apply to variables", name);
+		return NULL_TREE;
+	}
+
+	if (TYPE_P(*node)) {
+		*no_add_attrs = false;
+		type = *node;
+	} else {
+		gcc_assert(TREE_CODE(*node) == TYPE_DECL);
+		type = TREE_TYPE(*node);
+	}
+
+	if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE) {
+		error("%qE attribute applies to struct and union types only", name);
+		return NULL_TREE;
+	}
+
+	if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(type))) {
+		error("%qE attribute is already applied to the type", name);
+		return NULL_TREE;
+	}
+
+	if (TYPE_P(*node)) {
+		if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type)))
+			error("%qE attribute is incompatible with 'do_const'", name);
+		return NULL_TREE;
+	}
+
+	constifiable(type, &cinfo);
+	if ((cinfo.has_fptr_field && !cinfo.has_writable_field) || lookup_attribute("do_const", TYPE_ATTRIBUTES(type))) {
+		deconstify_tree(*node);
+		TYPE_CONSTIFY_VISITED(TREE_TYPE(*node)) = 1;
+		return NULL_TREE;
+	}
+
+	error("%qE attribute used on type that is not constified", name);
+	return NULL_TREE;
+}
+
+static void constify_type(tree type)
+{
+	TYPE_READONLY(type) = 1;
+	C_TYPE_FIELDS_READONLY(type) = 1;
+	TYPE_CONSTIFY_VISITED(type) = 1;
+//	TYPE_ATTRIBUTES(type) = tree_cons(get_identifier("do_const"), NULL_TREE, TYPE_ATTRIBUTES(type));
+}
+
+static tree handle_do_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
+{
+	*no_add_attrs = true;
+	if (!TYPE_P(*node)) {
+		error("%qE attribute applies to types only", name);
+		return NULL_TREE;
+	}
+
+	if (TREE_CODE(*node) != RECORD_TYPE && TREE_CODE(*node) != UNION_TYPE) {
+		error("%qE attribute applies to struct and union types only", name);
+		return NULL_TREE;
+	}
+
+	if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(*node))) {
+		error("%qE attribute is already applied to the type", name);
+		return NULL_TREE;
+	}
+
+	if (lookup_attribute("no_const", TYPE_ATTRIBUTES(*node))) {
+		error("%qE attribute is incompatible with 'no_const'", name);
+		return NULL_TREE;
+	}
+
+	*no_add_attrs = false;
+	return NULL_TREE;
+}
+
+static struct attribute_spec no_const_attr = {
+	.name			= "no_const",
+	.min_length		= 0,
+	.max_length		= 0,
+	.decl_required		= false,
+	.type_required		= false,
+	.function_type_required	= false,
+	.handler		= handle_no_const_attribute,
+#if BUILDING_GCC_VERSION >= 4007
+	.affects_type_identity	= true
+#endif
+};
+
+static struct attribute_spec do_const_attr = {
+	.name			= "do_const",
+	.min_length		= 0,
+	.max_length		= 0,
+	.decl_required		= false,
+	.type_required		= false,
+	.function_type_required	= false,
+	.handler		= handle_do_const_attribute,
+#if BUILDING_GCC_VERSION >= 4007
+	.affects_type_identity	= true
+#endif
+};
+
+static void register_attributes(void *event_data, void *data)
+{
+	register_attribute(&no_const_attr);
+	register_attribute(&do_const_attr);
+}
+
+static void finish_type(void *event_data, void *data)
+{
+	tree type = (tree)event_data;
+	constify_info cinfo = {
+		.has_fptr_field = false,
+		.has_writable_field = false,
+		.has_do_const_field = false,
+		.has_no_const_field = false
+	};
+
+	if (type == NULL_TREE || type == error_mark_node)
+		return;
+
+	if (TYPE_FIELDS(type) == NULL_TREE || TYPE_CONSTIFY_VISITED(type))
+		return;
+
+	constifiable(type, &cinfo);
+
+	if (TYPE_READONLY(type) && C_TYPE_FIELDS_READONLY(type)) {
+		if (!lookup_attribute("do_const", TYPE_ATTRIBUTES(type)))
+			return;
+		if (cinfo.has_writable_field)
+			return;
+		error("'do_const' attribute used on type that is%sconstified", cinfo.has_fptr_field ? " " : " not ");
+		return;
+	}
+
+	if (lookup_attribute("no_const", TYPE_ATTRIBUTES(type))) {
+		if ((cinfo.has_fptr_field && !cinfo.has_writable_field) || cinfo.has_do_const_field) {
+			deconstify_type(type);
+			TYPE_CONSTIFY_VISITED(type) = 1;
+		} else
+			error("'no_const' attribute used on type that is not constified");
+		return;
+	}
+
+	if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type))) {
+		constify_type(type);
+		return;
+	}
+
+	if (cinfo.has_fptr_field && !cinfo.has_writable_field) {
+		constify_type(type);
+		return;
+	}
+
+	deconstify_type(type);
+	TYPE_CONSTIFY_VISITED(type) = 1;
+}
+
+static void check_global_variables(void)
+{
+	struct varpool_node *node;
+
+#if BUILDING_GCC_VERSION <= 4007
+	for (node = varpool_nodes; node; node = node->next) {
+		tree var = node->decl;
+#else
+	FOR_EACH_VARIABLE(node) {
+		tree var = node->symbol.decl;
+#endif
+		tree type = TREE_TYPE(var);
+
+		if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
+			continue;
+
+		if (!TYPE_READONLY(type) || !C_TYPE_FIELDS_READONLY(type))
+			continue;
+
+		if (!TYPE_CONSTIFY_VISITED(type))
+			continue;
+
+		if (DECL_EXTERNAL(var))
+			continue;
+
+		if (DECL_INITIAL(var))
+			continue;
+
+		// this works around a gcc bug/feature where uninitialized globals
+		// are moved into the .bss section regardless of any constification
+		DECL_INITIAL(var) = build_constructor(type, NULL);
+//		inform(DECL_SOURCE_LOCATION(var), "constified variable %qE moved into .rodata", var);
+	}
+}
+
+static unsigned int check_local_variables(void)
+{
+	unsigned int ret = 0;
+	tree var;
+
+#if BUILDING_GCC_VERSION == 4005
+	tree vars;
+#else
+	unsigned int i;
+#endif
+
+#if BUILDING_GCC_VERSION == 4005
+	for (vars = cfun->local_decls; vars; vars = TREE_CHAIN(vars)) {
+		var = TREE_VALUE(vars);
+#else
+	FOR_EACH_LOCAL_DECL(cfun, i, var) {
+#endif
+		tree type = TREE_TYPE(var);
+
+		gcc_assert(DECL_P(var));
+		if (is_global_var(var))
+			continue;
+
+		if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
+			continue;
+
+		if (!TYPE_READONLY(type) || !C_TYPE_FIELDS_READONLY(type))
+			continue;
+
+		if (!TYPE_CONSTIFY_VISITED(type))
+			continue;
+
+		error_at(DECL_SOURCE_LOCATION(var), "constified variable %qE cannot be local", var);
+		ret = 1;
+	}
+	return ret;
+}
+
+static unsigned int check_variables(void)
+{
+	check_global_variables();
+	return check_local_variables();
+}
+
+	unsigned int ret = 0;
+static struct gimple_opt_pass pass_local_variable = {
+	{
+		.type			= GIMPLE_PASS,
+		.name			= "check_variables",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= NULL,
+		.execute		= check_variables,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= 0,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0,
+		.todo_flags_finish	= 0
+	}
+};
+
+static struct {
+	const char *name;
+	const char *asm_op;
+} sections[] = {
+	{".init.rodata",     "\t.section\t.init.rodata,\"a\""},
+	{".ref.rodata",      "\t.section\t.ref.rodata,\"a\""},
+	{".devinit.rodata",  "\t.section\t.devinit.rodata,\"a\""},
+	{".devexit.rodata",  "\t.section\t.devexit.rodata,\"a\""},
+	{".cpuinit.rodata",  "\t.section\t.cpuinit.rodata,\"a\""},
+	{".cpuexit.rodata",  "\t.section\t.cpuexit.rodata,\"a\""},
+	{".meminit.rodata",  "\t.section\t.meminit.rodata,\"a\""},
+	{".memexit.rodata",  "\t.section\t.memexit.rodata,\"a\""},
+	{".data..read_only", "\t.section\t.data..read_only,\"a\""},
+};
+
+static unsigned int (*old_section_type_flags)(tree decl, const char *name, int reloc);
+
+static unsigned int constify_section_type_flags(tree decl, const char *name, int reloc)
+{
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(sections); i++)
+		if (!strcmp(sections[i].name, name))
+			return 0;
+	return old_section_type_flags(decl, name, reloc);
+}
+
+static void constify_start_unit(void *gcc_data, void *user_data)
+{
+//	size_t i;
+
+//	for (i = 0; i < ARRAY_SIZE(sections); i++)
+//		sections[i].section = get_unnamed_section(0, output_section_asm_op, sections[i].asm_op);
+//		sections[i].section = get_section(sections[i].name, 0, NULL);
+
+	old_section_type_flags = targetm.section_type_flags;
+	targetm.section_type_flags = constify_section_type_flags;
+}
+
+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
+{
+	const char * const plugin_name = plugin_info->base_name;
+	const int argc = plugin_info->argc;
+	const struct plugin_argument * const argv = plugin_info->argv;
+	int i;
+	bool constify = true;
+
+	struct register_pass_info local_variable_pass_info = {
+		.pass				= &pass_local_variable.pass,
+		.reference_pass_name		= "ssa",
+		.ref_pass_instance_number	= 1,
+		.pos_op				= PASS_POS_INSERT_BEFORE
+	};
+
+	if (!plugin_default_version_check(version, &gcc_version)) {
+		error(G_("incompatible gcc/plugin versions"));
+		return 1;
+	}
+
+	for (i = 0; i < argc; ++i) {
+		if (!(strcmp(argv[i].key, "no-constify"))) {
+			constify = false;
+			continue;
+		}
+		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
+	}
+
+	if (strcmp(lang_hooks.name, "GNU C")) {
+		inform(UNKNOWN_LOCATION, G_("%s supports C only"), plugin_name);
+		constify = false;
+	}
+
+	register_callback(plugin_name, PLUGIN_INFO, NULL, &const_plugin_info);
+	if (constify) {
+		register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL);
+		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &local_variable_pass_info);
+		register_callback(plugin_name, PLUGIN_START_UNIT, constify_start_unit, NULL);
+	}
+	register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
+
+	return 0;
+}
diff --git a/tools/gcc/generate_size_overflow_hash.sh b/tools/gcc/generate_size_overflow_hash.sh
new file mode 100644
index 0000000..e518932
--- /dev/null
+++ b/tools/gcc/generate_size_overflow_hash.sh
@@ -0,0 +1,94 @@
+#!/bin/bash
+
+# This script generates the hash table (size_overflow_hash.h) for the size_overflow gcc plugin (size_overflow_plugin.c).
+
+header1="size_overflow_hash.h"
+database="size_overflow_hash.data"
+n=65536
+
+usage() {
+cat <<EOF
+usage: $0 options
+OPTIONS:
+        -h|--help               help
+	-o			header file
+	-d			database file
+	-n			hash array size
+EOF
+    return 0
+}
+
+while true
+do
+    case "$1" in
+    -h|--help)	usage && exit 0;;
+    -n)		n=$2; shift 2;;
+    -o)		header1="$2"; shift 2;;
+    -d)		database="$2"; shift 2;;
+    --)		shift 1; break ;;
+     *)		break ;;
+    esac
+done
+
+create_defines() {
+	for i in `seq 0 31`
+	do
+		echo -e "#define PARAM"$i" (1U << "$i")" >> "$header1"
+	done
+	echo >> "$header1"
+}
+
+create_structs() {
+	rm -f "$header1"
+
+	create_defines
+
+	cat "$database" | while read data
+	do
+		data_array=($data)
+		struct_hash_name="${data_array[0]}"
+		funcn="${data_array[1]}"
+		params="${data_array[2]}"
+		next="${data_array[4]}"
+
+		echo "const struct size_overflow_hash $struct_hash_name = {" >> "$header1"
+
+		echo -e "\t.next\t= $next,\n\t.name\t= \"$funcn\"," >> "$header1"
+		echo -en "\t.param\t= " >> "$header1"
+		line=
+		for param_num in ${params//-/ };
+		do
+			line="${line}PARAM"$param_num"|"
+		done
+
+		echo -e "${line%?},\n};\n" >> "$header1"
+	done
+}
+
+create_headers() {
+	echo "const struct size_overflow_hash * const size_overflow_hash[$n] = {" >> "$header1"
+}
+
+create_array_elements() {
+	index=0
+	grep -v "nohasharray" $database | sort -n -k 4 | while read data
+	do
+		data_array=($data)
+		i="${data_array[3]}"
+		hash="${data_array[0]}"
+		while [[ $index -lt $i ]]
+		do
+			echo -e "\t["$index"]\t= NULL," >> "$header1"
+			index=$(($index + 1))
+		done
+		index=$(($index + 1))
+		echo -e "\t["$i"]\t= &"$hash"," >> "$header1"
+	done
+	echo '};' >> $header1
+}
+
+create_structs
+create_headers
+create_array_elements
+
+exit 0
diff --git a/tools/gcc/kallocstat_plugin.c b/tools/gcc/kallocstat_plugin.c
new file mode 100644
index 0000000..568b360
--- /dev/null
+++ b/tools/gcc/kallocstat_plugin.c
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2011-2013 by the PaX Team <pageexec@freemail.hu>
+ * Licensed under the GPL v2
+ *
+ * Note: the choice of the license means that the compilation process is
+ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
+ *       but for the kernel it doesn't matter since it doesn't link against
+ *       any of the gcc libraries
+ *
+ * gcc plugin to find the distribution of k*alloc sizes
+ *
+ * TODO:
+ *
+ * BUGS:
+ * - none known
+ */
+#include "gcc-plugin.h"
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "tree-pass.h"
+#include "flags.h"
+#include "intl.h"
+#include "toplev.h"
+#include "plugin.h"
+//#include "expr.h" where are you...
+#include "diagnostic.h"
+#include "plugin-version.h"
+#include "tm.h"
+#include "function.h"
+#include "basic-block.h"
+#include "gimple.h"
+#include "rtl.h"
+#include "emit-rtl.h"
+
+extern void print_gimple_stmt(FILE *, gimple, int, int);
+
+int plugin_is_GPL_compatible;
+
+static const char * const kalloc_functions[] = {
+	"__kmalloc",
+	"kmalloc",
+	"kmalloc_large",
+	"kmalloc_node",
+	"kmalloc_order",
+	"kmalloc_order_trace",
+	"kmalloc_slab",
+	"kzalloc",
+	"kzalloc_node",
+};
+
+static struct plugin_info kallocstat_plugin_info = {
+	.version	= "201302112000",
+};
+
+static unsigned int execute_kallocstat(void);
+
+static struct gimple_opt_pass kallocstat_pass = {
+	.pass = {
+		.type			= GIMPLE_PASS,
+		.name			= "kallocstat",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= NULL,
+		.execute		= execute_kallocstat,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= 0,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0,
+		.todo_flags_finish	= 0
+	}
+};
+
+static bool is_kalloc(const char *fnname)
+{
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(kalloc_functions); i++)
+		if (!strcmp(fnname, kalloc_functions[i]))
+			return true;
+	return false;
+}
+
+static unsigned int execute_kallocstat(void)
+{
+	basic_block bb;
+
+	// 1. loop through BBs and GIMPLE statements
+	FOR_EACH_BB(bb) {
+		gimple_stmt_iterator gsi;
+		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
+			// gimple match: 
+			tree fndecl, size;
+			gimple call_stmt;
+			const char *fnname;
+
+			// is it a call
+			call_stmt = gsi_stmt(gsi);
+			if (!is_gimple_call(call_stmt))
+				continue;
+			fndecl = gimple_call_fndecl(call_stmt);
+			if (fndecl == NULL_TREE)
+				continue;
+			if (TREE_CODE(fndecl) != FUNCTION_DECL)
+				continue;
+
+			// is it a call to k*alloc
+			fnname = IDENTIFIER_POINTER(DECL_NAME(fndecl));
+			if (!is_kalloc(fnname))
+				continue;
+
+			// is the size arg the result of a simple const assignment
+			size = gimple_call_arg(call_stmt, 0);
+			while (true) {
+				gimple def_stmt;
+				expanded_location xloc;
+				size_t size_val;
+
+				if (TREE_CODE(size) != SSA_NAME)
+					break;
+				def_stmt = SSA_NAME_DEF_STMT(size);
+				if (!def_stmt || !is_gimple_assign(def_stmt))
+					break;
+				if (gimple_num_ops(def_stmt) != 2)
+					break;
+				size = gimple_assign_rhs1(def_stmt);
+				if (!TREE_CONSTANT(size))
+					continue;
+				xloc = expand_location(gimple_location(def_stmt));
+				if (!xloc.file)
+					xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl));
+				size_val = TREE_INT_CST_LOW(size);
+				fprintf(stderr, "kallocsize: %8zu %8zx %s %s:%u\n", size_val, size_val, fnname, xloc.file, xloc.line);
+				break;
+			}
+//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO);
+//debug_tree(gimple_call_fn(call_stmt));
+//print_node(stderr, "pax", fndecl, 4);
+		}
+	}
+
+	return 0;
+}
+
+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
+{
+	const char * const plugin_name = plugin_info->base_name;
+	struct register_pass_info kallocstat_pass_info = {
+		.pass				= &kallocstat_pass.pass,
+		.reference_pass_name		= "ssa",
+		.ref_pass_instance_number	= 1,
+		.pos_op 			= PASS_POS_INSERT_AFTER
+	};
+
+	if (!plugin_default_version_check(version, &gcc_version)) {
+		error(G_("incompatible gcc/plugin versions"));
+		return 1;
+	}
+
+	register_callback(plugin_name, PLUGIN_INFO, NULL, &kallocstat_plugin_info);
+	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kallocstat_pass_info);
+
+	return 0;
+}
diff --git a/tools/gcc/kernexec_plugin.c b/tools/gcc/kernexec_plugin.c
new file mode 100644
index 0000000..0408e06
--- /dev/null
+++ b/tools/gcc/kernexec_plugin.c
@@ -0,0 +1,465 @@
+/*
+ * Copyright 2011-2013 by the PaX Team <pageexec@freemail.hu>
+ * Licensed under the GPL v2
+ *
+ * Note: the choice of the license means that the compilation process is
+ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
+ *       but for the kernel it doesn't matter since it doesn't link against
+ *       any of the gcc libraries
+ *
+ * gcc plugin to make KERNEXEC/amd64 almost as good as it is on i386
+ *
+ * TODO:
+ *
+ * BUGS:
+ * - none known
+ */
+#include "gcc-plugin.h"
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "tree-pass.h"
+#include "flags.h"
+#include "intl.h"
+#include "toplev.h"
+#include "plugin.h"
+//#include "expr.h" where are you...
+#include "diagnostic.h"
+#include "plugin-version.h"
+#include "tm.h"
+#include "function.h"
+#include "basic-block.h"
+#include "gimple.h"
+#include "rtl.h"
+#include "emit-rtl.h"
+#include "tree-flow.h"
+
+extern void print_gimple_stmt(FILE *, gimple, int, int);
+extern rtx emit_move_insn(rtx x, rtx y);
+
+#if BUILDING_GCC_VERSION <= 4006
+#define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN)
+#endif
+
+#if BUILDING_GCC_VERSION >= 4008
+#define TODO_dump_func 0
+#endif
+
+int plugin_is_GPL_compatible;
+
+static struct plugin_info kernexec_plugin_info = {
+	.version	= "201302112000",
+	.help		= "method=[bts|or]\tinstrumentation method\n"
+};
+
+static unsigned int execute_kernexec_reload(void);
+static unsigned int execute_kernexec_fptr(void);
+static unsigned int execute_kernexec_retaddr(void);
+static bool kernexec_cmodel_check(void);
+
+static void (*kernexec_instrument_fptr)(gimple_stmt_iterator *);
+static void (*kernexec_instrument_retaddr)(rtx);
+
+static struct gimple_opt_pass kernexec_reload_pass = {
+	.pass = {
+		.type			= GIMPLE_PASS,
+		.name			= "kernexec_reload",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= kernexec_cmodel_check,
+		.execute		= execute_kernexec_reload,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= 0,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0,
+		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi
+	}
+};
+
+static struct gimple_opt_pass kernexec_fptr_pass = {
+	.pass = {
+		.type			= GIMPLE_PASS,
+		.name			= "kernexec_fptr",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= kernexec_cmodel_check,
+		.execute		= execute_kernexec_fptr,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= 0,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0,
+		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi
+	}
+};
+
+static struct rtl_opt_pass kernexec_retaddr_pass = {
+	.pass = {
+		.type			= RTL_PASS,
+		.name			= "kernexec_retaddr",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= kernexec_cmodel_check,
+		.execute		= execute_kernexec_retaddr,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= 0,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0,
+		.todo_flags_finish	= TODO_dump_func | TODO_ggc_collect
+	}
+};
+
+static bool kernexec_cmodel_check(void)
+{
+	tree section;
+
+	if (ix86_cmodel != CM_KERNEL)
+		return false;
+
+	section = lookup_attribute("section", DECL_ATTRIBUTES(current_function_decl));
+	if (!section || !TREE_VALUE(section))
+		return true;
+
+	section = TREE_VALUE(TREE_VALUE(section));
+	if (strncmp(TREE_STRING_POINTER(section), ".vsyscall_", 10))
+		return true;
+
+	return false;
+}
+
+/*
+ * add special KERNEXEC instrumentation: reload %r10 after it has been clobbered
+ */
+static void kernexec_reload_fptr_mask(gimple_stmt_iterator *gsi)
+{
+	gimple asm_movabs_stmt;
+
+	// build asm volatile("movabs $0x8000000000000000, %%r10\n\t" : : : );
+	asm_movabs_stmt = gimple_build_asm_vec("movabs $0x8000000000000000, %%r10\n\t", NULL, NULL, NULL, NULL);
+	gimple_asm_set_volatile(asm_movabs_stmt, true);
+	gsi_insert_after(gsi, asm_movabs_stmt, GSI_CONTINUE_LINKING);
+	update_stmt(asm_movabs_stmt);
+}
+
+/*
+ * find all asm() stmts that clobber r10 and add a reload of r10
+ */
+static unsigned int execute_kernexec_reload(void)
+{
+	basic_block bb;
+
+	// 1. loop through BBs and GIMPLE statements
+	FOR_EACH_BB(bb) {
+		gimple_stmt_iterator gsi;
+
+		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
+			// gimple match: __asm__ ("" :  :  : "r10");
+			gimple asm_stmt;
+			size_t nclobbers;
+
+			// is it an asm ...
+			asm_stmt = gsi_stmt(gsi);
+			if (gimple_code(asm_stmt) != GIMPLE_ASM)
+				continue;
+
+			// ... clobbering r10
+			nclobbers = gimple_asm_nclobbers(asm_stmt);
+			while (nclobbers--) {
+				tree op = gimple_asm_clobber_op(asm_stmt, nclobbers);
+				if (strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "r10"))
+					continue;
+				kernexec_reload_fptr_mask(&gsi);
+//print_gimple_stmt(stderr, asm_stmt, 0, TDF_LINENO);
+				break;
+			}
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * add special KERNEXEC instrumentation: force MSB of fptr to 1, which will produce
+ * a non-canonical address from a userland ptr and will just trigger a GPF on dereference
+ */
+static void kernexec_instrument_fptr_bts(gimple_stmt_iterator *gsi)
+{
+	gimple assign_intptr, assign_new_fptr, call_stmt;
+	tree intptr, old_fptr, new_fptr, kernexec_mask;
+
+	call_stmt = gsi_stmt(*gsi);
+	old_fptr = gimple_call_fn(call_stmt);
+
+	// create temporary unsigned long variable used for bitops and cast fptr to it
+	intptr = create_tmp_var(long_unsigned_type_node, "kernexec_bts");
+#if BUILDING_GCC_VERSION <= 4007
+	add_referenced_var(intptr);
+	mark_sym_for_renaming(intptr);
+#endif
+	assign_intptr = gimple_build_assign(intptr, fold_convert(long_unsigned_type_node, old_fptr));
+	gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT);
+	update_stmt(assign_intptr);
+
+	// apply logical or to temporary unsigned long and bitmask
+	kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0x8000000000000000LL);
+//	kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0xffffffff80000000LL);
+	assign_intptr = gimple_build_assign(intptr, fold_build2(BIT_IOR_EXPR, long_long_unsigned_type_node, intptr, kernexec_mask));
+	gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT);
+	update_stmt(assign_intptr);
+
+	// cast temporary unsigned long back to a temporary fptr variable
+	new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_fptr");
+#if BUILDING_GCC_VERSION <= 4007
+	add_referenced_var(new_fptr);
+	mark_sym_for_renaming(new_fptr);
+#endif
+	assign_new_fptr = gimple_build_assign(new_fptr, fold_convert(TREE_TYPE(old_fptr), intptr));
+	gsi_insert_before(gsi, assign_new_fptr, GSI_SAME_STMT);
+	update_stmt(assign_new_fptr);
+
+	// replace call stmt fn with the new fptr
+	gimple_call_set_fn(call_stmt, new_fptr);
+	update_stmt(call_stmt);
+}
+
+static void kernexec_instrument_fptr_or(gimple_stmt_iterator *gsi)
+{
+	gimple asm_or_stmt, call_stmt;
+	tree old_fptr, new_fptr, input, output;
+#if BUILDING_GCC_VERSION <= 4007
+	VEC(tree, gc) *inputs = NULL;
+	VEC(tree, gc) *outputs = NULL;
+#else
+	vec<tree, va_gc> *inputs = NULL;
+	vec<tree, va_gc> *outputs = NULL;
+#endif
+
+	call_stmt = gsi_stmt(*gsi);
+	old_fptr = gimple_call_fn(call_stmt);
+
+	// create temporary fptr variable
+	new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_or");
+#if BUILDING_GCC_VERSION <= 4007
+	add_referenced_var(new_fptr);
+	mark_sym_for_renaming(new_fptr);
+#endif
+
+	// build asm volatile("orq %%r10, %0\n\t" : "=r"(new_fptr) : "0"(old_fptr));
+	input = build_tree_list(NULL_TREE, build_string(2, "0"));
+	input = chainon(NULL_TREE, build_tree_list(input, old_fptr));
+	output = build_tree_list(NULL_TREE, build_string(3, "=r"));
+	output = chainon(NULL_TREE, build_tree_list(output, new_fptr));
+#if BUILDING_GCC_VERSION <= 4007
+	VEC_safe_push(tree, gc, inputs, input);
+	VEC_safe_push(tree, gc, outputs, output);
+#else
+	vec_safe_push(inputs, input);
+	vec_safe_push(outputs, output);
+#endif
+	asm_or_stmt = gimple_build_asm_vec("orq %%r10, %0\n\t", inputs, outputs, NULL, NULL);
+	gimple_asm_set_volatile(asm_or_stmt, true);
+	gsi_insert_before(gsi, asm_or_stmt, GSI_SAME_STMT);
+	update_stmt(asm_or_stmt);
+
+	// replace call stmt fn with the new fptr
+	gimple_call_set_fn(call_stmt, new_fptr);
+	update_stmt(call_stmt);
+}
+
+/*
+ * find all C level function pointer dereferences and forcibly set the highest bit of the pointer
+ */
+static unsigned int execute_kernexec_fptr(void)
+{
+	basic_block bb;
+
+	// 1. loop through BBs and GIMPLE statements
+	FOR_EACH_BB(bb) {
+		gimple_stmt_iterator gsi;
+
+		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
+			// gimple match: h_1 = get_fptr (); D.2709_3 = h_1 (x_2(D));
+			tree fn;
+			gimple call_stmt;
+
+			// is it a call ...
+			call_stmt = gsi_stmt(gsi);
+			if (!is_gimple_call(call_stmt))
+				continue;
+			fn = gimple_call_fn(call_stmt);
+			if (TREE_CODE(fn) == ADDR_EXPR)
+				continue;
+			if (TREE_CODE(fn) != SSA_NAME)
+				gcc_unreachable();
+
+			// ... through a function pointer
+			if (SSA_NAME_VAR(fn) != NULL_TREE) {
+				fn = SSA_NAME_VAR(fn);
+				if (TREE_CODE(fn) != VAR_DECL && TREE_CODE(fn) != PARM_DECL) {
+					debug_tree(fn);
+					gcc_unreachable();
+				}
+			}
+			fn = TREE_TYPE(fn);
+			if (TREE_CODE(fn) != POINTER_TYPE)
+				continue;
+			fn = TREE_TYPE(fn);
+			if (TREE_CODE(fn) != FUNCTION_TYPE)
+				continue;
+
+			kernexec_instrument_fptr(&gsi);
+
+//debug_tree(gimple_call_fn(call_stmt));
+//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO);
+		}
+	}
+
+	return 0;
+}
+
+// add special KERNEXEC instrumentation: btsq $63,(%rsp) just before retn
+static void kernexec_instrument_retaddr_bts(rtx insn)
+{
+	rtx btsq;
+	rtvec argvec, constraintvec, labelvec;
+	int line;
+
+	// create asm volatile("btsq $63,(%%rsp)":::)
+	argvec = rtvec_alloc(0);
+	constraintvec = rtvec_alloc(0);
+	labelvec = rtvec_alloc(0);
+	line = expand_location(RTL_LOCATION(insn)).line;
+	btsq = gen_rtx_ASM_OPERANDS(VOIDmode, "btsq $63,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line);
+	MEM_VOLATILE_P(btsq) = 1;
+//	RTX_FRAME_RELATED_P(btsq) = 1; // not for ASM_OPERANDS
+	emit_insn_before(btsq, insn);
+}
+
+// add special KERNEXEC instrumentation: orq %r10,(%rsp) just before retn
+static void kernexec_instrument_retaddr_or(rtx insn)
+{
+	rtx orq;
+	rtvec argvec, constraintvec, labelvec;
+	int line;
+
+	// create asm volatile("orq %%r10,(%%rsp)":::)
+	argvec = rtvec_alloc(0);
+	constraintvec = rtvec_alloc(0);
+	labelvec = rtvec_alloc(0);
+	line = expand_location(RTL_LOCATION(insn)).line;
+	orq = gen_rtx_ASM_OPERANDS(VOIDmode, "orq %%r10,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line);
+	MEM_VOLATILE_P(orq) = 1;
+//	RTX_FRAME_RELATED_P(orq) = 1; // not for ASM_OPERANDS
+	emit_insn_before(orq, insn);
+}
+
+/*
+ * find all asm level function returns and forcibly set the highest bit of the return address
+ */
+static unsigned int execute_kernexec_retaddr(void)
+{
+	rtx insn;
+
+	// 1. find function returns
+	for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) {
+		// rtl match: (jump_insn 41 40 42 2 (return) fptr.c:42 634 {return_internal} (nil))
+		//            (jump_insn 12 9 11 2 (parallel [ (return) (unspec [ (0) ] UNSPEC_REP) ]) fptr.c:46 635 {return_internal_long} (nil))
+		//            (jump_insn 97 96 98 6 (simple_return) fptr.c:50 -1 (nil) -> simple_return)
+		rtx body;
+
+		// is it a retn
+		if (!JUMP_P(insn))
+			continue;
+		body = PATTERN(insn);
+		if (GET_CODE(body) == PARALLEL)
+			body = XVECEXP(body, 0, 0);
+		if (!ANY_RETURN_P(body))
+			continue;
+		kernexec_instrument_retaddr(insn);
+	}
+
+//	print_simple_rtl(stderr, get_insns());
+//	print_rtl(stderr, get_insns());
+
+	return 0;
+}
+
+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
+{
+	const char * const plugin_name = plugin_info->base_name;
+	const int argc = plugin_info->argc;
+	const struct plugin_argument * const argv = plugin_info->argv;
+	int i;
+	struct register_pass_info kernexec_reload_pass_info = {
+		.pass				= &kernexec_reload_pass.pass,
+		.reference_pass_name		= "ssa",
+		.ref_pass_instance_number	= 1,
+		.pos_op 			= PASS_POS_INSERT_AFTER
+	};
+	struct register_pass_info kernexec_fptr_pass_info = {
+		.pass				= &kernexec_fptr_pass.pass,
+		.reference_pass_name		= "ssa",
+		.ref_pass_instance_number	= 1,
+		.pos_op 			= PASS_POS_INSERT_AFTER
+	};
+	struct register_pass_info kernexec_retaddr_pass_info = {
+		.pass				= &kernexec_retaddr_pass.pass,
+		.reference_pass_name		= "pro_and_epilogue",
+		.ref_pass_instance_number	= 1,
+		.pos_op 			= PASS_POS_INSERT_AFTER
+	};
+
+	if (!plugin_default_version_check(version, &gcc_version)) {
+		error(G_("incompatible gcc/plugin versions"));
+		return 1;
+	}
+
+	register_callback(plugin_name, PLUGIN_INFO, NULL, &kernexec_plugin_info);
+
+	if (TARGET_64BIT == 0)
+		return 0;
+
+	for (i = 0; i < argc; ++i) {
+		if (!strcmp(argv[i].key, "method")) {
+			if (!argv[i].value) {
+				error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
+				continue;
+			}
+			if (!strcmp(argv[i].value, "bts")) {
+				kernexec_instrument_fptr = kernexec_instrument_fptr_bts;
+				kernexec_instrument_retaddr = kernexec_instrument_retaddr_bts;
+			} else if (!strcmp(argv[i].value, "or")) {
+				kernexec_instrument_fptr = kernexec_instrument_fptr_or;
+				kernexec_instrument_retaddr = kernexec_instrument_retaddr_or;
+				fix_register("r10", 1, 1);
+			} else
+				error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
+			continue;
+		}
+		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
+	}
+	if (!kernexec_instrument_fptr || !kernexec_instrument_retaddr)
+		error(G_("no instrumentation method was selected via '-fplugin-arg-%s-method'"), plugin_name);
+
+	if (kernexec_instrument_fptr == kernexec_instrument_fptr_or)
+		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_reload_pass_info);
+	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_fptr_pass_info);
+	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_retaddr_pass_info);
+
+	return 0;
+}
diff --git a/tools/gcc/latent_entropy_plugin.c b/tools/gcc/latent_entropy_plugin.c
new file mode 100644
index 0000000..b5395ba
--- /dev/null
+++ b/tools/gcc/latent_entropy_plugin.c
@@ -0,0 +1,327 @@
+/*
+ * Copyright 2012-2013 by the PaX Team <pageexec@freemail.hu>
+ * Licensed under the GPL v2
+ *
+ * Note: the choice of the license means that the compilation process is
+ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
+ *       but for the kernel it doesn't matter since it doesn't link against
+ *       any of the gcc libraries
+ *
+ * gcc plugin to help generate a little bit of entropy from program state,
+ * used during boot in the kernel
+ *
+ * TODO:
+ * - add ipa pass to identify not explicitly marked candidate functions
+ * - mix in more program state (function arguments/return values, loop variables, etc)
+ * - more instrumentation control via attribute parameters
+ *
+ * BUGS:
+ * - LTO needs -flto-partition=none for now
+ */
+#include "gcc-plugin.h"
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "tree-pass.h"
+#include "flags.h"
+#include "intl.h"
+#include "toplev.h"
+#include "plugin.h"
+//#include "expr.h" where are you...
+#include "diagnostic.h"
+#include "plugin-version.h"
+#include "tm.h"
+#include "function.h"
+#include "basic-block.h"
+#include "gimple.h"
+#include "rtl.h"
+#include "emit-rtl.h"
+#include "tree-flow.h"
+#include "langhooks.h"
+
+#if BUILDING_GCC_VERSION >= 4008
+#define TODO_dump_func 0
+#endif
+
+int plugin_is_GPL_compatible;
+
+static tree latent_entropy_decl;
+
+static struct plugin_info latent_entropy_plugin_info = {
+	.version	= "201303102320",
+	.help		= NULL
+};
+
+static unsigned int execute_latent_entropy(void);
+static bool gate_latent_entropy(void);
+
+static struct gimple_opt_pass latent_entropy_pass = {
+	.pass = {
+		.type			= GIMPLE_PASS,
+		.name			= "latent_entropy",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= gate_latent_entropy,
+		.execute		= execute_latent_entropy,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= PROP_gimple_leh | PROP_cfg,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts,
+		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa
+	}
+};
+
+static tree handle_latent_entropy_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
+{
+	if (TREE_CODE(*node) != FUNCTION_DECL) {
+		*no_add_attrs = true;
+		error("%qE attribute only applies to functions", name);
+	}
+	return NULL_TREE;
+}
+
+static struct attribute_spec latent_entropy_attr = {
+	.name				= "latent_entropy",
+	.min_length			= 0,
+	.max_length			= 0,
+	.decl_required			= true,
+	.type_required			= false,
+	.function_type_required		= false,
+	.handler			= handle_latent_entropy_attribute,
+#if BUILDING_GCC_VERSION >= 4007
+	.affects_type_identity		= false
+#endif
+};
+
+static void register_attributes(void *event_data, void *data)
+{
+	register_attribute(&latent_entropy_attr);
+}
+
+static bool gate_latent_entropy(void)
+{
+	tree latent_entropy_attr;
+
+	latent_entropy_attr = lookup_attribute("latent_entropy", DECL_ATTRIBUTES(current_function_decl));
+	return latent_entropy_attr != NULL_TREE;
+}
+
+static unsigned HOST_WIDE_INT seed;
+static unsigned HOST_WIDE_INT get_random_const(void)
+{
+	seed = (seed >> 1U) ^ (-(seed & 1ULL) & 0xD800000000000000ULL);
+	return seed;
+}
+
+static enum tree_code get_op(tree *rhs)
+{
+	static enum tree_code op;
+	unsigned HOST_WIDE_INT random_const;
+
+	random_const = get_random_const();
+
+	switch (op) {
+	case BIT_XOR_EXPR:
+		op = PLUS_EXPR;
+		break;
+
+	case PLUS_EXPR:
+		if (rhs) {
+			op = LROTATE_EXPR;
+			random_const &= HOST_BITS_PER_WIDE_INT - 1;
+			break;
+		}
+
+	case LROTATE_EXPR:
+	default:
+		op = BIT_XOR_EXPR;
+		break;
+	}
+	if (rhs)
+		*rhs = build_int_cstu(unsigned_intDI_type_node, random_const);
+	return op;
+}
+
+static void perturb_local_entropy(basic_block bb, tree local_entropy)
+{
+	gimple_stmt_iterator gsi;
+	gimple assign;
+	tree addxorrol, rhs;
+	enum tree_code op;
+
+	op = get_op(&rhs);
+	addxorrol = fold_build2_loc(UNKNOWN_LOCATION, op, unsigned_intDI_type_node, local_entropy, rhs);
+	assign = gimple_build_assign(local_entropy, addxorrol);
+#if BUILDING_GCC_VERSION <= 4007
+	find_referenced_vars_in(assign);
+#endif
+//debug_bb(bb);
+	gsi = gsi_after_labels(bb);
+	gsi_insert_before(&gsi, assign, GSI_NEW_STMT);
+	update_stmt(assign);
+}
+
+static void perturb_latent_entropy(basic_block bb, tree rhs)
+{
+	gimple_stmt_iterator gsi;
+	gimple assign;
+	tree addxorrol, temp;
+
+	// 1. create temporary copy of latent_entropy
+	temp = create_tmp_var(unsigned_intDI_type_node, "temp_latent_entropy");
+#if BUILDING_GCC_VERSION <= 4007
+	add_referenced_var(temp);
+	mark_sym_for_renaming(temp);
+#endif
+
+	// 2. read...
+	assign = gimple_build_assign(temp, latent_entropy_decl);
+#if BUILDING_GCC_VERSION <= 4007
+	find_referenced_vars_in(assign);
+#endif
+	gsi = gsi_after_labels(bb);
+	gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
+	update_stmt(assign);
+
+	// 3. ...modify...
+	addxorrol = fold_build2_loc(UNKNOWN_LOCATION, get_op(NULL), unsigned_intDI_type_node, temp, rhs);
+	assign = gimple_build_assign(temp, addxorrol);
+#if BUILDING_GCC_VERSION <= 4007
+	find_referenced_vars_in(assign);
+#endif
+	gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
+	update_stmt(assign);
+
+	// 4. ...write latent_entropy
+	assign = gimple_build_assign(latent_entropy_decl, temp);
+#if BUILDING_GCC_VERSION <= 4007
+	find_referenced_vars_in(assign);
+#endif
+	gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
+	update_stmt(assign);
+}
+
+static unsigned int execute_latent_entropy(void)
+{
+	basic_block bb;
+	gimple assign;
+	gimple_stmt_iterator gsi;
+	tree local_entropy;
+
+	if (!latent_entropy_decl) {
+		struct varpool_node *node;
+
+#if BUILDING_GCC_VERSION <= 4007
+		for (node = varpool_nodes; node; node = node->next) {
+			tree var = node->decl;
+#else
+		FOR_EACH_VARIABLE(node) {
+			tree var = node->symbol.decl;
+#endif
+			if (strcmp(IDENTIFIER_POINTER(DECL_NAME(var)), "latent_entropy"))
+				continue;
+			latent_entropy_decl = var;
+//			debug_tree(var);
+			break;
+		}
+		if (!latent_entropy_decl) {
+//			debug_tree(current_function_decl);
+			return 0;
+		}
+	}
+
+//fprintf(stderr, "latent_entropy: %s\n", IDENTIFIER_POINTER(DECL_NAME(current_function_decl)));
+
+	// 1. create local entropy variable
+	local_entropy = create_tmp_var(unsigned_intDI_type_node, "local_entropy");
+#if BUILDING_GCC_VERSION <= 4007
+	add_referenced_var(local_entropy);
+	mark_sym_for_renaming(local_entropy);
+#endif
+
+	// 2. initialize local entropy variable
+	bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest;
+	if (dom_info_available_p(CDI_DOMINATORS))
+		set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR);
+	gsi = gsi_start_bb(bb);
+
+	assign = gimple_build_assign(local_entropy, build_int_cstu(unsigned_intDI_type_node, get_random_const()));
+//	gimple_set_location(assign, loc);
+#if BUILDING_GCC_VERSION <= 4007
+	find_referenced_vars_in(assign);
+#endif
+	gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
+	update_stmt(assign);
+	bb = bb->next_bb;
+
+	// 3. instrument each BB with an operation on the local entropy variable
+	while (bb != EXIT_BLOCK_PTR) {
+		perturb_local_entropy(bb, local_entropy);
+		bb = bb->next_bb;
+	};
+
+	// 4. mix local entropy into the global entropy variable
+	perturb_latent_entropy(EXIT_BLOCK_PTR->prev_bb, local_entropy);
+	return 0;
+}
+
+static void start_unit_callback(void *gcc_data, void *user_data)
+{
+	tree latent_entropy_type;
+
+#if BUILDING_GCC_VERSION >= 4007
+	seed = get_random_seed(false);
+#else
+	sscanf(get_random_seed(false), "%" HOST_WIDE_INT_PRINT "x", &seed);
+	seed *= seed;
+#endif
+
+	if (in_lto_p)
+		return;
+
+	// extern volatile u64 latent_entropy
+	gcc_assert(TYPE_PRECISION(long_long_unsigned_type_node) == 64);
+	latent_entropy_type = build_qualified_type(long_long_unsigned_type_node, TYPE_QUALS(long_long_unsigned_type_node) | TYPE_QUAL_VOLATILE);
+	latent_entropy_decl = build_decl(UNKNOWN_LOCATION, VAR_DECL, get_identifier("latent_entropy"), latent_entropy_type);
+
+	TREE_STATIC(latent_entropy_decl) = 1;
+	TREE_PUBLIC(latent_entropy_decl) = 1;
+	TREE_USED(latent_entropy_decl) = 1;
+	TREE_THIS_VOLATILE(latent_entropy_decl) = 1;
+	DECL_EXTERNAL(latent_entropy_decl) = 1;
+	DECL_ARTIFICIAL(latent_entropy_decl) = 1;
+	DECL_INITIAL(latent_entropy_decl) = NULL;
+	lang_hooks.decls.pushdecl(latent_entropy_decl);
+//	DECL_ASSEMBLER_NAME(latent_entropy_decl);
+//	varpool_finalize_decl(latent_entropy_decl);
+//	varpool_mark_needed_node(latent_entropy_decl);
+}
+
+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
+{
+	const char * const plugin_name = plugin_info->base_name;
+	struct register_pass_info latent_entropy_pass_info = {
+		.pass				= &latent_entropy_pass.pass,
+		.reference_pass_name		= "optimized",
+		.ref_pass_instance_number	= 1,
+		.pos_op 			= PASS_POS_INSERT_BEFORE
+	};
+
+	if (!plugin_default_version_check(version, &gcc_version)) {
+		error(G_("incompatible gcc/plugin versions"));
+		return 1;
+	}
+
+	register_callback(plugin_name, PLUGIN_INFO, NULL, &latent_entropy_plugin_info);
+	register_callback ("start_unit", PLUGIN_START_UNIT, &start_unit_callback, NULL);
+	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &latent_entropy_pass_info);
+	register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
+
+	return 0;
+}
diff --git a/tools/gcc/size_overflow_hash.data b/tools/gcc/size_overflow_hash.data
new file mode 100644
index 0000000..7982a0c
--- /dev/null
+++ b/tools/gcc/size_overflow_hash.data
@@ -0,0 +1,5893 @@
+intel_fake_agp_alloc_by_type_1 intel_fake_agp_alloc_by_type 1 1 NULL
+batadv_orig_node_del_if_4 batadv_orig_node_del_if 2 4 NULL
+storvsc_connect_to_vsp_22 storvsc_connect_to_vsp 2 22 NULL
+compat_sock_setsockopt_23 compat_sock_setsockopt 5 23 NULL
+carl9170_alloc_27 carl9170_alloc 1 27 NULL
+sel_read_policyvers_55 sel_read_policyvers 3 55 NULL nohasharray
+padzero_55 padzero 1 55 &sel_read_policyvers_55
+cfg80211_disconnected_57 cfg80211_disconnected 4 57 NULL
+__skb_to_sgvec_72 __skb_to_sgvec 0 72 NULL
+crypto_authenc_setkey_80 crypto_authenc_setkey 3 80 NULL
+snd_korg1212_copy_to_92 snd_korg1212_copy_to 6 92 NULL
+load_msg_95 load_msg 2 95 NULL
+device_flush_iotlb_115 device_flush_iotlb 2-3 115 NULL
+init_q_132 init_q 4 132 NULL
+memstick_alloc_host_142 memstick_alloc_host 1 142 NULL
+hva_to_gfn_memslot_149 hva_to_gfn_memslot 0-1 149 NULL
+tracing_trace_options_write_153 tracing_trace_options_write 3 153 NULL
+nvme_create_queue_170 nvme_create_queue 3 170 NULL
+xfs_buf_item_get_format_189 xfs_buf_item_get_format 2 189 NULL
+iscsi_session_setup_196 iscsi_session_setup 4-5 196 NULL
+virtblk_add_req_197 virtblk_add_req 2-3 197 NULL
+proc_scsi_write_proc_267 proc_scsi_write_proc 3 267 NULL
+br_port_info_size_268 br_port_info_size 0 268 NULL
+generic_file_direct_write_291 generic_file_direct_write 0 291 NULL
+read_file_war_stats_292 read_file_war_stats 3 292 NULL
+syslog_print_307 syslog_print 2 307 NULL
+platform_device_add_data_310 platform_device_add_data 3 310 NULL
+dn_setsockopt_314 dn_setsockopt 5 314 NULL
+next_node_allowed_318 next_node_allowed 1 318 NULL
+compat_sys_ioctl_333 compat_sys_ioctl 3 333 NULL
+btmrvl_txdnldready_read_413 btmrvl_txdnldready_read 3 413 NULL
+lbs_rdmac_read_418 lbs_rdmac_read 3 418 NULL
+snd_ca0106_ptr_read_467 snd_ca0106_ptr_read 0 467 NULL
+_alloc_get_attr_desc_470 _alloc_get_attr_desc 2 470 NULL
+dccp_manip_pkt_476 dccp_manip_pkt 4 476 NULL
+pidlist_resize_496 pidlist_resize 2 496 NULL
+read_vbt_r0_503 read_vbt_r0 1 503 NULL
+rx_rx_defrag_end_read_505 rx_rx_defrag_end_read 3 505 NULL
+ocfs2_validate_meta_ecc_bhs_527 ocfs2_validate_meta_ecc_bhs 0 527 NULL
+zlib_deflate_workspacesize_537 zlib_deflate_workspacesize 0 537 NULL
+iwl_dbgfs_wowlan_sram_read_540 iwl_dbgfs_wowlan_sram_read 3 540 NULL
+dle_count_543 dle_count 0 543 NULL
+devres_alloc_551 devres_alloc 2 551 NULL
+snd_aw2_saa7146_get_hw_ptr_playback_558 snd_aw2_saa7146_get_hw_ptr_playback 0 558 NULL
+dev_hard_header_565 dev_hard_header 0 565 NULL nohasharray
+start_isoc_chain_565 start_isoc_chain 2 565 &dev_hard_header_565
+compat_sys_preadv_583 compat_sys_preadv 3 583 NULL
+smk_write_load_self2_591 smk_write_load_self2 3 591 NULL
+ni_gpct_device_construct_610 ni_gpct_device_construct 5 610 NULL
+fuse_request_alloc_nofs_617 fuse_request_alloc_nofs 1 617 NULL
+compat_sys_shmat_620 compat_sys_shmat 3 620 NULL
+isp1760_register_628 isp1760_register 1-2 628 NULL
+clone_split_bio_633 clone_split_bio 6 633 NULL
+remap_to_cache_640 remap_to_cache 3 640 NULL
+drbd_bm_find_next_643 drbd_bm_find_next 2 643 NULL
+unlink_queued_645 unlink_queued 3-4 645 NULL
+dtim_interval_read_654 dtim_interval_read 3 654 NULL
+mem_rx_free_mem_blks_read_675 mem_rx_free_mem_blks_read 3 675 NULL
+rtl8169_try_rx_copy_705 rtl8169_try_rx_copy 3 705 NULL
+persistent_ram_vmap_709 persistent_ram_vmap 1-2 709 NULL
+ipath_resize_cq_712 ipath_resize_cq 2 712 NULL
+disk_max_parts_719 disk_max_parts 0 719 NULL
+sctp_setsockopt_peer_addr_params_734 sctp_setsockopt_peer_addr_params 3 734 NULL
+dvb_video_write_754 dvb_video_write 3 754 NULL
+if_writecmd_815 if_writecmd 2 815 NULL
+aac_change_queue_depth_825 aac_change_queue_depth 2 825 NULL
+read_fifo_826 read_fifo 3 826 NULL
+um_idi_read_850 um_idi_read 3 850 NULL
+ieee80211_if_fmt_rc_rateidx_mcs_mask_5ghz_856 ieee80211_if_fmt_rc_rateidx_mcs_mask_5ghz 3 856 NULL
+o2net_send_message_vec_879 o2net_send_message_vec 4 879 NULL nohasharray
+iwl_dbgfs_fh_reg_read_879 iwl_dbgfs_fh_reg_read 3 879 &o2net_send_message_vec_879
+snd_pcm_action_single_905 snd_pcm_action_single 0 905 NULL
+btmrvl_hsstate_read_920 btmrvl_hsstate_read 3 920 NULL
+carl9170_cmd_buf_950 carl9170_cmd_buf 3 950 NULL
+get_ramdisk_size_954 get_ramdisk_size 0 954 NULL
+__nodes_weight_956 __nodes_weight 2-0 956 NULL
+sys_msgrcv_959 sys_msgrcv 3 959 NULL
+pte_prefetch_gfn_to_pfn_997 pte_prefetch_gfn_to_pfn 2 997 NULL nohasharray
+hdlcdev_rx_997 hdlcdev_rx 3 997 &pte_prefetch_gfn_to_pfn_997
+dm_cache_set_dirty_1016 dm_cache_set_dirty 2 1016 NULL
+smk_write_cipso2_1021 smk_write_cipso2 3 1021 NULL
+gigaset_initdriver_1060 gigaset_initdriver 2 1060 NULL
+Read_hfc16_1070 Read_hfc16 0 1070 NULL
+mce_request_packet_1073 mce_request_packet 3 1073 NULL
+agp_create_memory_1075 agp_create_memory 1 1075 NULL
+_scsih_adjust_queue_depth_1083 _scsih_adjust_queue_depth 2 1083 NULL
+nfs_pgarray_set_1085 nfs_pgarray_set 2 1085 NULL
+llcp_sock_sendmsg_1092 llcp_sock_sendmsg 4 1092 NULL
+nfs4_init_nonuniform_client_string_1097 nfs4_init_nonuniform_client_string 3 1097 NULL
+sys_mremap_1107 sys_mremap 5-1-2 1107 NULL
+cfg80211_report_obss_beacon_1133 cfg80211_report_obss_beacon 3 1133 NULL
+vmalloc_32_1135 vmalloc_32 1 1135 NULL
+i2400m_rx_ctl_1157 i2400m_rx_ctl 4 1157 NULL
+ipc_alloc_1192 ipc_alloc 1 1192 NULL
+ib_create_send_mad_1196 ib_create_send_mad 5 1196 NULL
+i2400m_rx_ctl_ack_1199 i2400m_rx_ctl_ack 3 1199 NULL
+dgrp_dpa_read_1204 dgrp_dpa_read 3 1204 NULL
+i2cdev_read_1206 i2cdev_read 3 1206 NULL
+ipw_packet_received_skb_1230 ipw_packet_received_skb 2 1230 NULL
+acpi_battery_write_alarm_1240 acpi_battery_write_alarm 3 1240 NULL
+nested_get_page_1252 nested_get_page 2 1252 NULL
+ocfs2_extend_file_1266 ocfs2_extend_file 3 1266 NULL
+qla4xxx_change_queue_depth_1268 qla4xxx_change_queue_depth 2 1268 NULL
+ioctl_private_iw_point_1273 ioctl_private_iw_point 7 1273 NULL
+batadv_tt_prepare_packet_buff_1280 batadv_tt_prepare_packet_buff 4 1280 NULL
+tx_frag_in_process_called_read_1290 tx_frag_in_process_called_read 3 1290 NULL
+wm_adsp_buf_alloc_1317 wm_adsp_buf_alloc 2 1317 NULL
+compat_put_u64_1319 compat_put_u64 1 1319 NULL
+ffs_1322 ffs 0 1322 NULL
+carl9170_rx_stream_1334 carl9170_rx_stream 3 1334 NULL
+btrfs_submit_compressed_write_1347 btrfs_submit_compressed_write 5 1347 NULL
+gen_pool_best_fit_1348 gen_pool_best_fit 2-3-4 1348 NULL
+io_mapping_create_wc_1354 io_mapping_create_wc 1-2 1354 NULL
+snd_pcm_lib_write1_1358 snd_pcm_lib_write1 0-3 1358 NULL
+ipx_sendmsg_1362 ipx_sendmsg 4 1362 NULL
+iov_num_pages_1364 iov_num_pages 0 1364 NULL
+fw_stats_raw_read_1369 fw_stats_raw_read 3 1369 NULL
+ocfs2_prepare_inode_for_write_1372 ocfs2_prepare_inode_for_write 3 1372 NULL
+sctp_setsockopt_initmsg_1383 sctp_setsockopt_initmsg 3 1383 NULL
+do_msgsnd_1387 do_msgsnd 4 1387 NULL
+zone_page_state_1393 zone_page_state 0 1393 NULL
+file_read_actor_1401 file_read_actor 4 1401 NULL
+vb2_dc_get_user_pages_1442 vb2_dc_get_user_pages 1-3 1442 NULL
+stack_max_size_read_1445 stack_max_size_read 3 1445 NULL
+tx_queue_len_read_1463 tx_queue_len_read 3 1463 NULL
+xprt_alloc_1475 xprt_alloc 2 1475 NULL
+sta_num_ps_buf_frames_read_1488 sta_num_ps_buf_frames_read 3 1488 NULL
+posix_acl_permission_1495 posix_acl_permission 0 1495 NULL
+tomoyo_round2_1518 tomoyo_round2 0 1518 NULL
+__vfio_dma_map_1523 __vfio_dma_map 3 1523 NULL
+alloc_perm_bits_1532 alloc_perm_bits 2 1532 NULL
+ieee80211_if_read_dot11MeshHWMPnetDiameterTraversalTime_1589 ieee80211_if_read_dot11MeshHWMPnetDiameterTraversalTime 3 1589 NULL
+fc_frame_alloc_1596 fc_frame_alloc 2 1596 NULL
+packet_buffer_init_1607 packet_buffer_init 2 1607 NULL
+btmrvl_hscmd_read_1614 btmrvl_hscmd_read 3 1614 NULL
+v9fs_fid_xattr_get_1618 v9fs_fid_xattr_get 0 1618 NULL
+btmrvl_hsmode_read_1647 btmrvl_hsmode_read 3 1647 NULL
+ikconfig_read_current_1658 ikconfig_read_current 3 1658 NULL
+netdev_feature_string_1667 netdev_feature_string 0 1667 NULL
+compat_x25_ioctl_1674 compat_x25_ioctl 3 1674 NULL
+rmap_add_1677 rmap_add 3 1677 NULL
+configfs_read_file_1683 configfs_read_file 3 1683 NULL
+coda_psdev_write_1711 coda_psdev_write 3 1711 NULL
+btrfs_dir_data_len_1714 btrfs_dir_data_len 0 1714 NULL
+dma_memcpy_pg_to_iovec_1725 dma_memcpy_pg_to_iovec 6 1725 NULL
+tx_frag_called_read_1748 tx_frag_called_read 3 1748 NULL
+compat_cdrom_generic_command_1756 compat_cdrom_generic_command 4 1756 NULL
+ieee80211_new_mesh_header_1761 ieee80211_new_mesh_header 0 1761 NULL
+ebt_size_mwt_1768 ebt_size_mwt 0 1768 NULL
+cosa_write_1774 cosa_write 3 1774 NULL
+update_macheader_1775 update_macheader 7 1775 NULL
+fcoe_ctlr_device_add_1793 fcoe_ctlr_device_add 3 1793 NULL
+__nodelist_scnprintf_1815 __nodelist_scnprintf 0-2-4 1815 NULL
+alloc_pages_exact_1892 alloc_pages_exact 1 1892 NULL
+rx_defrag_called_read_1897 rx_defrag_called_read 3 1897 NULL
+nfs_parse_server_name_1899 nfs_parse_server_name 2 1899 NULL
+tx_tx_retry_data_read_1926 tx_tx_retry_data_read 3 1926 NULL
+memblock_alloc_base_1938 memblock_alloc_base 1-2 1938 NULL
+cyttsp_probe_1940 cyttsp_probe 4 1940 NULL
+ieee80211_if_fmt_dot11MeshConfirmTimeout_1945 ieee80211_if_fmt_dot11MeshConfirmTimeout 3 1945 NULL
+read_swap_header_1957 read_swap_header 0 1957 NULL
+ivtv_v4l2_read_1964 ivtv_v4l2_read 3 1964 NULL
+sel_read_avc_hash_stats_1984 sel_read_avc_hash_stats 3 1984 NULL
+__alloc_bootmem_node_1992 __alloc_bootmem_node 2-3 1992 NULL
+atomic_read_unchecked_1995 atomic_read_unchecked 0 1995 NULL
+batadv_tt_commit_changes_2008 batadv_tt_commit_changes 4 2008 NULL
+sep_prepare_input_dma_table_2009 sep_prepare_input_dma_table 2-3 2009 NULL
+rx_rx_defrag_read_2010 rx_rx_defrag_read 3 2010 NULL
+ocfs2_global_qinit_alloc_2018 ocfs2_global_qinit_alloc 0 2018 NULL
+write_flush_pipefs_2021 write_flush_pipefs 3 2021 NULL
+BcmCopySection_2035 BcmCopySection 5 2035 NULL
+devm_ioremap_nocache_2036 devm_ioremap_nocache 2-3 2036 NULL
+ath6kl_fwlog_mask_read_2050 ath6kl_fwlog_mask_read 3 2050 NULL
+ocfs2_expand_inline_dir_2063 ocfs2_expand_inline_dir 3 2063 NULL
+subbuf_read_actor_2071 subbuf_read_actor 3 2071 NULL
+iwl_dbgfs_current_sleep_command_read_2081 iwl_dbgfs_current_sleep_command_read 3 2081 NULL
+idetape_chrdev_read_2097 idetape_chrdev_read 3 2097 NULL
+audit_expand_2098 audit_expand 2 2098 NULL
+num_pages_spanned_2105 num_pages_spanned 0 2105 NULL
+iwl_dbgfs_log_event_read_2107 iwl_dbgfs_log_event_read 3 2107 NULL
+ecryptfs_encrypt_and_encode_filename_2109 ecryptfs_encrypt_and_encode_filename 6 2109 NULL
+__find_xattr_2117 __find_xattr 6 2117 NULL nohasharray
+enable_read_2117 enable_read 3 2117 &__find_xattr_2117
+pcf50633_write_block_2124 pcf50633_write_block 2-3 2124 NULL
+check_load_and_stores_2143 check_load_and_stores 2 2143 NULL
+lp_gpio_irq_map_2149 lp_gpio_irq_map 2 2149 NULL
+mlx4_init_icm_table_2151 mlx4_init_icm_table 5-4 2151 NULL
+iov_iter_count_2152 iov_iter_count 0 2152 NULL
+_ore_get_io_state_2166 _ore_get_io_state 3-4-5 2166 NULL
+ssb_bus_ssbbus_register_2217 ssb_bus_ssbbus_register 2 2217 NULL
+u32_array_read_2219 u32_array_read 3 2219 NULL
+vhci_write_2224 vhci_write 3 2224 NULL
+efx_tsoh_page_count_2225 efx_tsoh_page_count 0 2225 NULL
+lowpan_get_mac_header_length_2231 lowpan_get_mac_header_length 0 2231 NULL
+ieee80211_if_read_dot11MeshHWMPRannInterval_2249 ieee80211_if_read_dot11MeshHWMPRannInterval 3 2249 NULL
+netlbl_secattr_catmap_walk_2255 netlbl_secattr_catmap_walk 0-2 2255 NULL
+sel_write_avc_cache_threshold_2256 sel_write_avc_cache_threshold 3 2256 NULL
+do_update_counters_2259 do_update_counters 4 2259 NULL
+ath6kl_wmi_bssinfo_event_rx_2275 ath6kl_wmi_bssinfo_event_rx 3 2275 NULL
+debug_debug5_read_2291 debug_debug5_read 3 2291 NULL
+kvm_clear_guest_page_2308 kvm_clear_guest_page 4-2 2308 NULL
+intel_sdvo_set_value_2311 intel_sdvo_set_value 4 2311 NULL
+picolcd_fb_write_2318 picolcd_fb_write 3 2318 NULL
+gart_map_page_2325 gart_map_page 3-4 2325 NULL
+__erst_read_to_erange_2341 __erst_read_to_erange 0 2341 NULL
+zr364xx_read_2354 zr364xx_read 3 2354 NULL
+viafb_iga2_odev_proc_write_2363 viafb_iga2_odev_proc_write 3 2363 NULL
+xfs_buf_map_from_irec_2368 xfs_buf_map_from_irec 5 2368 NULL
+il_dbgfs_sensitivity_read_2370 il_dbgfs_sensitivity_read 3 2370 NULL
+rtl_port_map_2385 rtl_port_map 1-2 2385 NULL
+rxpipe_rx_prep_beacon_drop_read_2403 rxpipe_rx_prep_beacon_drop_read 3 2403 NULL
+isdn_v110_open_2418 isdn_v110_open 3 2418 NULL
+raid1_size_2419 raid1_size 0-2 2419 NULL
+roccat_common2_send_2422 roccat_common2_send 4 2422 NULL
+hfcpci_empty_fifo_2427 hfcpci_empty_fifo 4 2427 NULL
+ioremap_nocache_2439 ioremap_nocache 1-2 2439 NULL
+tty_buffer_find_2443 tty_buffer_find 2 2443 NULL
+ath6kl_usb_bmi_write_2454 ath6kl_usb_bmi_write 3 2454 NULL
+b43legacy_debugfs_read_2473 b43legacy_debugfs_read 3 2473 NULL
+update_pmkid_2481 update_pmkid 4 2481 NULL
+wiphy_new_2482 wiphy_new 2 2482 NULL
+bio_alloc_bioset_2484 bio_alloc_bioset 2 2484 NULL
+lookup_cache_entry_2494 lookup_cache_entry 2 2494 NULL
+squashfs_read_fragment_index_table_2506 squashfs_read_fragment_index_table 4 2506 NULL
+dm_write_2513 dm_write 3 2513 NULL
+v9fs_cached_file_read_2514 v9fs_cached_file_read 3 2514 NULL
+ext4_get_inode_loc_2516 ext4_get_inode_loc 0 2516 NULL
+gspca_dev_probe_2570 gspca_dev_probe 4 2570 NULL
+i915_next_seqno_write_2572 i915_next_seqno_write 3 2572 NULL
+pcm_sanity_check_2574 pcm_sanity_check 0 2574 NULL
+smk_write_logging_2618 smk_write_logging 3 2618 NULL
+kvm_gfn_to_hva_cache_init_2636 kvm_gfn_to_hva_cache_init 3 2636 NULL
+lro_gen_skb_2644 lro_gen_skb 6 2644 NULL
+nfc_llcp_send_ui_frame_2702 nfc_llcp_send_ui_frame 5 2702 NULL
+memcpy_fromiovecend_2707 memcpy_fromiovecend 3-4 2707 NULL
+__xip_file_write_2733 __xip_file_write 4-3 2733 NULL
+hid_report_raw_event_2762 hid_report_raw_event 4 2762 NULL
+mon_bin_ioctl_2771 mon_bin_ioctl 3 2771 NULL
+__next_cpu_2782 __next_cpu 1 2782 NULL
+set_msr_hyperv_pw_2785 set_msr_hyperv_pw 3 2785 NULL
+sel_read_enforce_2828 sel_read_enforce 3 2828 NULL
+vb2_dc_get_userptr_2829 vb2_dc_get_userptr 2-3 2829 NULL
+wait_for_avail_2847 wait_for_avail 0 2847 NULL
+ufs_free_fragments_2857 ufs_free_fragments 2 2857 NULL
+sfq_alloc_2861 sfq_alloc 1 2861 NULL
+move_addr_to_user_2868 move_addr_to_user 2 2868 NULL
+mq_map_2871 mq_map 2 2871 NULL
+nla_padlen_2883 nla_padlen 1 2883 NULL
+cmm_write_2896 cmm_write 3 2896 NULL
+alloc_page_cgroup_2919 alloc_page_cgroup 1 2919 NULL
+xfs_trans_get_buf_map_2927 xfs_trans_get_buf_map 4 2927 NULL
+nes_read_indexed_2946 nes_read_indexed 0 2946 NULL
+tm6000_i2c_recv_regs16_2949 tm6000_i2c_recv_regs16 5 2949 NULL
+ppp_cp_event_2965 ppp_cp_event 6 2965 NULL
+do_strnlen_user_2976 do_strnlen_user 0-2 2976 NULL
+p9_nr_pages_2992 p9_nr_pages 0-2 2992 NULL
+do_dmabuf_dirty_sou_3017 do_dmabuf_dirty_sou 7 3017 NULL
+depth_write_3021 depth_write 3 3021 NULL
+snd_azf3328_codec_inl_3022 snd_azf3328_codec_inl 0 3022 NULL
+xfrm_dst_alloc_copy_3034 xfrm_dst_alloc_copy 3 3034 NULL
+iwl_dbgfs_sleep_level_override_read_3038 iwl_dbgfs_sleep_level_override_read 3 3038 NULL
+nr_free_buffer_pages_3044 nr_free_buffer_pages 0 3044 NULL
+il3945_ucode_rx_stats_read_3048 il3945_ucode_rx_stats_read 3 3048 NULL
+qp_alloc_ppn_set_3068 qp_alloc_ppn_set 2-4 3068 NULL
+__blk_end_bidi_request_3070 __blk_end_bidi_request 3-4 3070 NULL
+dac960_user_command_proc_write_3071 dac960_user_command_proc_write 3 3071 NULL
+free_coherent_3082 free_coherent 4-2 3082 NULL
+clone_bio_3100 clone_bio 6 3100 NULL nohasharray
+ttusb2_msg_3100 ttusb2_msg 4 3100 &clone_bio_3100
+rb_alloc_3102 rb_alloc 1 3102 NULL
+simple_write_to_buffer_3122 simple_write_to_buffer 5-2 3122 NULL
+print_time_3132 print_time 0 3132 NULL
+fill_write_buffer_3142 fill_write_buffer 3 3142 NULL
+CIFSSMBSetPosixACL_3154 CIFSSMBSetPosixACL 5 3154 NULL
+compat_sys_migrate_pages_3157 compat_sys_migrate_pages 2 3157 NULL
+uv_num_possible_blades_3177 uv_num_possible_blades 0 3177 NULL
+uvc_video_stats_dump_3181 uvc_video_stats_dump 3 3181 NULL
+compat_do_ip6t_set_ctl_3184 compat_do_ip6t_set_ctl 4 3184 NULL
+mempool_create_node_3191 mempool_create_node 1 3191 NULL
+alloc_context_3194 alloc_context 1 3194 NULL
+shmem_pread_slow_3198 shmem_pread_slow 3 3198 NULL
+kimage_crash_alloc_3233 kimage_crash_alloc 3 3233 NULL
+do_read_log_to_user_3236 do_read_log_to_user 4 3236 NULL
+ext3_xattr_find_entry_3237 ext3_xattr_find_entry 0 3237 NULL
+key_key_read_3241 key_key_read 3 3241 NULL
+number_3243 number 0 3243 NULL
+check_vendor_extension_3254 check_vendor_extension 1 3254 NULL
+__ilog2_u64_3284 __ilog2_u64 0 3284 NULL
+arvo_sysfs_write_3311 arvo_sysfs_write 6 3311 NULL
+dbDiscardAG_3322 dbDiscardAG 3 3322 NULL
+compat_sys_setsockopt_3326 compat_sys_setsockopt 5 3326 NULL
+aac_rkt_ioremap_3333 aac_rkt_ioremap 2 3333 NULL
+read_from_oldmem_3337 read_from_oldmem 2 3337 NULL
+tty_port_register_device_attr_3341 tty_port_register_device_attr 3 3341 NULL
+il_dbgfs_interrupt_read_3351 il_dbgfs_interrupt_read 3 3351 NULL
+gsm_control_rls_3353 gsm_control_rls 3 3353 NULL
+scnprintf_3360 scnprintf 0-2 3360 NULL
+x86_emulate_instruction_3389 x86_emulate_instruction 2 3389 NULL
+mtdchar_writeoob_3393 mtdchar_writeoob 4 3393 NULL
+send_stream_3397 send_stream 4 3397 NULL
+isdn_readbchan_3401 isdn_readbchan 0-5 3401 NULL
+msix_map_region_3411 msix_map_region 3 3411 NULL
+mei_io_cb_alloc_resp_buf_3414 mei_io_cb_alloc_resp_buf 2 3414 NULL
+pci_add_cap_save_buffer_3426 pci_add_cap_save_buffer 3 3426 NULL
+crystalhd_create_dio_pool_3427 crystalhd_create_dio_pool 2 3427 NULL
+pipe_iov_copy_to_user_3447 pipe_iov_copy_to_user 3 3447 NULL
+percpu_modalloc_3448 percpu_modalloc 2-3 3448 NULL
+map_single_3449 map_single 0-2 3449 NULL
+jffs2_acl_setxattr_3464 jffs2_acl_setxattr 4 3464 NULL nohasharray
+snd_pcm_lib_readv_transfer_3464 snd_pcm_lib_readv_transfer 4-2-5 3464 &jffs2_acl_setxattr_3464
+alloc_skb_fclone_3467 alloc_skb_fclone 1 3467 NULL
+security_context_to_sid_default_3492 security_context_to_sid_default 2 3492 NULL
+xfrm_migrate_msgsize_3496 xfrm_migrate_msgsize 1 3496 NULL
+kvm_handle_bad_page_3503 kvm_handle_bad_page 2 3503 NULL
+mem_tx_free_mem_blks_read_3521 mem_tx_free_mem_blks_read 3 3521 NULL nohasharray
+ieee80211_wx_set_gen_ie_rsl_3521 ieee80211_wx_set_gen_ie_rsl 3 3521 &mem_tx_free_mem_blks_read_3521
+btrfs_dir_name_len_3549 btrfs_dir_name_len 0 3549 NULL
+b43legacy_read16_3561 b43legacy_read16 0 3561 NULL
+alloc_smp_resp_3566 alloc_smp_resp 1 3566 NULL
+evtchn_read_3569 evtchn_read 3 3569 NULL
+vc_resize_3585 vc_resize 2-3 3585 NULL
+compat_sys_semtimedop_3606 compat_sys_semtimedop 3 3606 NULL
+sctp_getsockopt_events_3607 sctp_getsockopt_events 2 3607 NULL
+edac_mc_alloc_3611 edac_mc_alloc 4 3611 NULL
+tx_tx_starts_read_3617 tx_tx_starts_read 3 3617 NULL
+aligned_kmalloc_3628 aligned_kmalloc 1 3628 NULL
+cm_copy_private_data_3649 cm_copy_private_data 2 3649 NULL
+ath6kl_disconnect_timeout_read_3650 ath6kl_disconnect_timeout_read 3 3650 NULL
+i915_compat_ioctl_3656 i915_compat_ioctl 2 3656 NULL
+create_irq_3703 create_irq 0 3703 NULL nohasharray
+btmrvl_psmode_write_3703 btmrvl_psmode_write 3 3703 &create_irq_3703 nohasharray
+snd_m3_assp_read_3703 snd_m3_assp_read 0 3703 &btmrvl_psmode_write_3703
+videobuf_pages_to_sg_3708 videobuf_pages_to_sg 2 3708 NULL
+ci_ll_write_3740 ci_ll_write 4 3740 NULL nohasharray
+ath6kl_mgmt_tx_3740 ath6kl_mgmt_tx 7 3740 &ci_ll_write_3740
+sctp_setsockopt_auth_key_3793 sctp_setsockopt_auth_key 3 3793 NULL
+ncp_file_write_3813 ncp_file_write 3 3813 NULL
+read_file_tx_chainmask_3829 read_file_tx_chainmask 3 3829 NULL
+stringify_nodemap_3842 stringify_nodemap 2 3842 NULL
+ubi_eba_read_leb_3847 ubi_eba_read_leb 0 3847 NULL
+create_one_cdev_3852 create_one_cdev 2 3852 NULL
+smk_read_onlycap_3855 smk_read_onlycap 3 3855 NULL
+get_fd_set_3866 get_fd_set 1 3866 NULL
+garp_attr_create_3883 garp_attr_create 3 3883 NULL
+uea_send_modem_cmd_3888 uea_send_modem_cmd 3 3888 NULL
+efivarfs_file_read_3893 efivarfs_file_read 3 3893 NULL
+nvram_write_3894 nvram_write 3 3894 NULL
+pipeline_pre_proc_swi_read_3898 pipeline_pre_proc_swi_read 3 3898 NULL
+comedi_buf_read_n_available_3899 comedi_buf_read_n_available 0 3899 NULL
+vcs_write_3910 vcs_write 3 3910 NULL
+atalk_compat_ioctl_3991 atalk_compat_ioctl 3 3991 NULL
+do_add_counters_3992 do_add_counters 3 3992 NULL
+userspace_status_4004 userspace_status 4 4004 NULL
+mei_write_4005 mei_write 3 4005 NULL nohasharray
+xfs_check_block_4005 xfs_check_block 4 4005 &mei_write_4005
+snd_hdsp_capture_copy_4011 snd_hdsp_capture_copy 5 4011 NULL
+mm_populate_4016 mm_populate 1 4016 NULL
+blk_end_request_4024 blk_end_request 3 4024 NULL
+ext4_xattr_find_entry_4025 ext4_xattr_find_entry 0 4025 NULL
+usbnet_write_cmd_async_4035 usbnet_write_cmd_async 7 4035 NULL
+read_file_queues_4078 read_file_queues 3 4078 NULL
+fbcon_do_set_font_4079 fbcon_do_set_font 2-3 4079 NULL
+da9052_free_irq_4090 da9052_free_irq 2 4090 NULL
+ntb_netdev_change_mtu_4147 ntb_netdev_change_mtu 2 4147 NULL
+tm6000_read_4151 tm6000_read 3 4151 NULL
+mpt_raid_phys_disk_get_num_paths_4155 mpt_raid_phys_disk_get_num_paths 0 4155 NULL
+msg_bits_4158 msg_bits 0-3-4 4158 NULL
+get_alua_req_4166 get_alua_req 3 4166 NULL
+blk_dropped_read_4168 blk_dropped_read 3 4168 NULL
+read_file_bool_4180 read_file_bool 3 4180 NULL
+f1x_determine_channel_4202 f1x_determine_channel 2 4202 NULL
+_osd_req_list_objects_4204 _osd_req_list_objects 6 4204 NULL
+__snd_gf1_read_addr_4210 __snd_gf1_read_addr 0 4210 NULL
+goldfish_audio_write_4284 goldfish_audio_write 3 4284 NULL
+paging32_page_fault_4288 paging32_page_fault 2 4288 NULL
+xt_compat_add_offset_4289 xt_compat_add_offset 0 4289 NULL
+__usbnet_read_cmd_4299 __usbnet_read_cmd 7 4299 NULL
+dvb_ringbuffer_pkt_read_user_4303 dvb_ringbuffer_pkt_read_user 3-2-5 4303 NULL
+nouveau_fifo_create__4327 nouveau_fifo_create_ 5-6 4327 NULL
+snd_rawmidi_kernel_read_4328 snd_rawmidi_kernel_read 3 4328 NULL
+__copy_from_user_inatomic_4365 __copy_from_user_inatomic 3 4365 NULL
+sys_setdomainname_4373 sys_setdomainname 2 4373 NULL
+irda_sendmsg_4388 irda_sendmsg 4 4388 NULL
+access_process_vm_4412 access_process_vm 0-2-4 4412 NULL nohasharray
+cxacru_cm_get_array_4412 cxacru_cm_get_array 4 4412 &access_process_vm_4412
+libfc_vport_create_4415 libfc_vport_create 2 4415 NULL
+do_pages_stat_4437 do_pages_stat 2 4437 NULL
+memparse_4444 memparse 0 4444 NULL
+at76_set_card_command_4471 at76_set_card_command 4 4471 NULL
+snd_seq_expand_var_event_4481 snd_seq_expand_var_event 0-5 4481 NULL
+sys_semtimedop_4486 sys_semtimedop 3 4486 NULL
+vmbus_establish_gpadl_4495 vmbus_establish_gpadl 3 4495 NULL
+set_link_security_4502 set_link_security 4 4502 NULL
+dm_cache_remove_mapping_4513 dm_cache_remove_mapping 2 4513 NULL
+__gfn_to_pfn_memslot_4530 __gfn_to_pfn_memslot 2 4530 NULL
+sys_llistxattr_4532 sys_llistxattr 3 4532 NULL
+da9052_group_write_4534 da9052_group_write 2-3 4534 NULL
+tty_register_device_4544 tty_register_device 2 4544 NULL
+videobuf_vmalloc_to_sg_4548 videobuf_vmalloc_to_sg 2 4548 NULL
+btrfs_file_extent_inline_item_len_4575 btrfs_file_extent_inline_item_len 0 4575 NULL
+xfs_buf_get_maps_4581 xfs_buf_get_maps 2 4581 NULL
+bch_alloc_4593 bch_alloc 1 4593 NULL
+__wb_force_remove_mapping_4622 __wb_force_remove_mapping 2 4622 NULL
+iwl_dbgfs_tx_queue_read_4635 iwl_dbgfs_tx_queue_read 3 4635 NULL
+skb_add_data_nocache_4682 skb_add_data_nocache 4 4682 NULL
+cx18_read_pos_4683 cx18_read_pos 3 4683 NULL
+short_retry_limit_read_4687 short_retry_limit_read 3 4687 NULL
+kone_receive_4690 kone_receive 4 4690 NULL
+round_pipe_size_4701 round_pipe_size 0 4701 NULL
+cxgbi_alloc_big_mem_4707 cxgbi_alloc_big_mem 1 4707 NULL
+btmrvl_gpiogap_read_4718 btmrvl_gpiogap_read 3 4718 NULL
+ati_create_gatt_pages_4722 ati_create_gatt_pages 1 4722 NULL nohasharray
+show_header_4722 show_header 3 4722 &ati_create_gatt_pages_4722
+__find_free_cblock_4741 __find_free_cblock 2 4741 NULL
+memblock_find_in_range_4759 memblock_find_in_range 3-4 4759 NULL
+pwr_rcvd_bcns_cnt_read_4774 pwr_rcvd_bcns_cnt_read 3 4774 NULL
+create_subvol_4791 create_subvol 4 4791 NULL
+ncp__vol2io_4804 ncp__vol2io 5 4804 NULL
+repair_io_failure_4815 repair_io_failure 4 4815 NULL
+gigaset_if_receive_4861 gigaset_if_receive 3 4861 NULL
+key_tx_spec_read_4862 key_tx_spec_read 3 4862 NULL
+ocfs2_defrag_extent_4873 ocfs2_defrag_extent 3 4873 NULL
+hid_register_field_4874 hid_register_field 2-3 4874 NULL
+vga_arb_read_4886 vga_arb_read 3 4886 NULL
+sys_ipc_4889 sys_ipc 3 4889 NULL
+sys_process_vm_writev_4928 sys_process_vm_writev 3-5 4928 NULL
+ntfs_rl_insert_4931 ntfs_rl_insert 2-4 4931 NULL
+ieee80211_if_fmt_ave_beacon_4941 ieee80211_if_fmt_ave_beacon 3 4941 NULL
+devm_kzalloc_4966 devm_kzalloc 2 4966 NULL
+compat_rawv6_setsockopt_4967 compat_rawv6_setsockopt 5 4967 NULL
+skb_network_header_len_4971 skb_network_header_len 0 4971 NULL
+ieee80211_if_fmt_dot11MeshHWMPconfirmationInterval_4976 ieee80211_if_fmt_dot11MeshHWMPconfirmationInterval 3 4976 NULL
+vmw_surface_define_size_4993 vmw_surface_define_size 0 4993 NULL
+qla82xx_pci_mem_write_direct_5008 qla82xx_pci_mem_write_direct 2 5008 NULL
+do_mincore_5018 do_mincore 0-1 5018 NULL
+mtd_device_parse_register_5024 mtd_device_parse_register 5 5024 NULL
+ocfs2_check_range_for_holes_5066 ocfs2_check_range_for_holes 2-3 5066 NULL
+snd_mixart_BA1_read_5082 snd_mixart_BA1_read 5 5082 NULL
+snd_emu10k1_ptr20_read_5087 snd_emu10k1_ptr20_read 0 5087 NULL
+get_random_bytes_5091 get_random_bytes 2 5091 NULL nohasharray
+kfifo_copy_from_user_5091 kfifo_copy_from_user 3 5091 &get_random_bytes_5091 nohasharray
+blk_rq_sectors_5091 blk_rq_sectors 0 5091 &kfifo_copy_from_user_5091
+mpol_to_str_5093 mpol_to_str 2 5093 NULL
+sound_write_5102 sound_write 3 5102 NULL
+clear_dirty_5105 clear_dirty 3 5105 NULL
+ufs_add_fragments_5144 ufs_add_fragments 2 5144 NULL
+compat_ptr_5159 compat_ptr 0-1 5159 NULL
+__uwb_addr_print_5161 __uwb_addr_print 2 5161 NULL
+iwl_dbgfs_status_read_5171 iwl_dbgfs_status_read 3 5171 NULL
+acpi_pcc_get_sqty_5176 acpi_pcc_get_sqty 0 5176 NULL
+sfi_map_memory_5183 sfi_map_memory 1-2 5183 NULL
+skb_network_header_5203 skb_network_header 0 5203 NULL
+pipe_set_size_5204 pipe_set_size 2 5204 NULL
+ppp_cp_parse_cr_5214 ppp_cp_parse_cr 4 5214 NULL
+ath6kl_debug_roam_tbl_event_5224 ath6kl_debug_roam_tbl_event 3 5224 NULL
+ssb_ioremap_5228 ssb_ioremap 2 5228 NULL
+isdn_ppp_skb_push_5236 isdn_ppp_skb_push 2 5236 NULL
+do_atmif_sioc_5247 do_atmif_sioc 3 5247 NULL
+gfn_to_hva_memslot_5265 gfn_to_hva_memslot 2 5265 NULL
+alloc_cache_blocks_with_hash_5285 alloc_cache_blocks_with_hash 2 5285 NULL
+__gfn_to_hva_memslot_5304 __gfn_to_hva_memslot 0-2 5304 NULL
+sbc_get_write_same_sectors_5317 sbc_get_write_same_sectors 0 5317 NULL
+pwr_elp_enter_read_5324 pwr_elp_enter_read 3 5324 NULL
+allocate_cnodes_5329 allocate_cnodes 1 5329 NULL
+ps_pspoll_utilization_read_5361 ps_pspoll_utilization_read 3 5361 NULL
+cciss_allocate_sg_chain_blocks_5368 cciss_allocate_sg_chain_blocks 3-2 5368 NULL
+kvm_pin_pages_5369 kvm_pin_pages 2 5369 NULL
+bitmap_fold_5396 bitmap_fold 4 5396 NULL
+nilfs_palloc_entries_per_group_5418 nilfs_palloc_entries_per_group 0 5418 NULL
+sfi_map_table_5462 sfi_map_table 1 5462 NULL
+xfs_efd_init_5463 xfs_efd_init 3 5463 NULL
+xfs_efi_init_5476 xfs_efi_init 2 5476 NULL
+ubi_leb_write_5478 ubi_leb_write 4-5 5478 NULL
+cifs_security_flags_proc_write_5484 cifs_security_flags_proc_write 3 5484 NULL
+tty_write_5494 tty_write 3 5494 NULL
+tomoyo_update_domain_5498 tomoyo_update_domain 2 5498 NULL nohasharray
+ieee80211_if_fmt_last_beacon_5498 ieee80211_if_fmt_last_beacon 3 5498 &tomoyo_update_domain_5498
+__max_nr_grant_frames_5505 __max_nr_grant_frames 0 5505 NULL
+spidev_message_5518 spidev_message 3 5518 NULL
+ieee80211_if_fmt_auto_open_plinks_5534 ieee80211_if_fmt_auto_open_plinks 3 5534 NULL
+brcmu_pkt_buf_get_skb_5556 brcmu_pkt_buf_get_skb 1 5556 NULL
+le_readq_5557 le_readq 0 5557 NULL
+inw_5558 inw 0 5558 NULL
+fir16_create_5574 fir16_create 3 5574 NULL
+bioset_create_5580 bioset_create 1 5580 NULL
+oz_ep_alloc_5587 oz_ep_alloc 2 5587 NULL
+usb_dump_device_descriptor_5599 usb_dump_device_descriptor 0 5599 NULL
+ldm_frag_add_5611 ldm_frag_add 2 5611 NULL
+compat_copy_entries_5617 compat_copy_entries 0 5617 NULL
+ext4_xattr_get_5661 ext4_xattr_get 0 5661 NULL
+posix_clock_register_5662 posix_clock_register 2 5662 NULL
+mthca_map_reg_5664 mthca_map_reg 2-3 5664 NULL
+__videobuf_alloc_vb_5665 __videobuf_alloc_vb 1 5665 NULL
+wb_clear_dirty_5684 wb_clear_dirty 2 5684 NULL
+get_arg_5694 get_arg 3 5694 NULL
+vmw_kms_readback_5727 vmw_kms_readback 6 5727 NULL
+reexecute_instruction_5733 reexecute_instruction 2 5733 NULL
+rts51x_transfer_data_partial_5735 rts51x_transfer_data_partial 6 5735 NULL
+ubi_cdev_compat_ioctl_5746 ubi_cdev_compat_ioctl 3 5746 NULL
+sctp_setsockopt_autoclose_5775 sctp_setsockopt_autoclose 3 5775 NULL
+compat_sys_writev_5784 compat_sys_writev 3 5784 NULL
+__vxge_hw_blockpool_malloc_5786 __vxge_hw_blockpool_malloc 2 5786 NULL
+skb_copy_datagram_iovec_5806 skb_copy_datagram_iovec 2-4 5806 NULL
+nv50_disp_pioc_create__5812 nv50_disp_pioc_create_ 5 5812 NULL
+ceph_x_encrypt_buflen_5829 ceph_x_encrypt_buflen 0-1 5829 NULL
+autofs4_root_compat_ioctl_5838 autofs4_root_compat_ioctl 3 5838 NULL
+ceph_msg_new_5846 ceph_msg_new 2 5846 NULL
+ixgb_check_copybreak_5847 ixgb_check_copybreak 3 5847 NULL
+setup_req_5848 setup_req 3 5848 NULL
+rx_filter_max_arp_queue_dep_read_5851 rx_filter_max_arp_queue_dep_read 3 5851 NULL
+compat_sys_move_pages_5861 compat_sys_move_pages 2 5861 NULL nohasharray
+uinput_compat_ioctl_5861 uinput_compat_ioctl 3 5861 &compat_sys_move_pages_5861
+paging64_walk_addr_5887 paging64_walk_addr 3 5887 NULL
+port_show_regs_5904 port_show_regs 3 5904 NULL
+uhci_debug_read_5911 uhci_debug_read 3 5911 NULL
+qla82xx_pci_mem_read_2M_5912 qla82xx_pci_mem_read_2M 2 5912 NULL
+ttm_bo_kmap_ttm_5922 ttm_bo_kmap_ttm 3 5922 NULL
+lbs_highsnr_read_5931 lbs_highsnr_read 3 5931 NULL
+ps_poll_ps_poll_timeouts_read_5934 ps_poll_ps_poll_timeouts_read 3 5934 NULL
+edac_device_alloc_ctl_info_5941 edac_device_alloc_ctl_info 1 5941 NULL
+tipc_subseq_alloc_5957 tipc_subseq_alloc 1 5957 NULL
+__apu_get_register_5967 __apu_get_register 0 5967 NULL
+ieee80211_if_fmt_rc_rateidx_mask_5ghz_5971 ieee80211_if_fmt_rc_rateidx_mask_5ghz 3 5971 NULL
+native_pte_val_5978 native_pte_val 0 5978 NULL
+ntfs_rl_append_6037 ntfs_rl_append 2-4 6037 NULL
+da9052_request_irq_6058 da9052_request_irq 2 6058 NULL
+sctp_setsockopt_connectx_6073 sctp_setsockopt_connectx 3 6073 NULL
+rts51x_ms_rw_multi_sector_6076 rts51x_ms_rw_multi_sector 3-4 6076 NULL
+ipmi_addr_length_6110 ipmi_addr_length 0 6110 NULL
+dfs_global_file_write_6112 dfs_global_file_write 3 6112 NULL
+matrix_keypad_build_keymap_6129 matrix_keypad_build_keymap 3 6129 NULL
+nouveau_parent_create__6131 nouveau_parent_create_ 7 6131 NULL
+ivtv_copy_buf_to_user_6159 ivtv_copy_buf_to_user 4 6159 NULL
+vdma_mem_alloc_6171 vdma_mem_alloc 1 6171 NULL
+wl1251_cmd_template_set_6172 wl1251_cmd_template_set 4 6172 NULL
+paging64_walk_addr_generic_6180 paging64_walk_addr_generic 4 6180 NULL
+qp_host_get_user_memory_6189 qp_host_get_user_memory 1-2 6189 NULL
+mxt_show_instance_6207 mxt_show_instance 2-0 6207 NULL
+v4l2_ctrl_new_std_menu_6221 v4l2_ctrl_new_std_menu 4 6221 NULL
+mqueue_read_file_6228 mqueue_read_file 3 6228 NULL
+f_hidg_read_6238 f_hidg_read 3 6238 NULL
+fbcon_prepare_logo_6246 fbcon_prepare_logo 5 6246 NULL
+pcpu_next_pop_6277 pcpu_next_pop 4 6277 NULL
+tx_tx_start_null_frame_read_6281 tx_tx_start_null_frame_read 3 6281 NULL
+snd_hda_override_conn_list_6282 snd_hda_override_conn_list 3 6282 NULL nohasharray
+xenbus_file_write_6282 xenbus_file_write 3 6282 &snd_hda_override_conn_list_6282
+posix_acl_fix_xattr_to_user_6283 posix_acl_fix_xattr_to_user 2 6283 NULL
+paging64_gva_to_gpa_nested_6287 paging64_gva_to_gpa_nested 2 6287 NULL
+nf_nat_ipv6_manip_pkt_6289 nf_nat_ipv6_manip_pkt 2 6289 NULL
+nf_nat_sack_adjust_6297 nf_nat_sack_adjust 2 6297 NULL
+mid_get_vbt_data_r10_6308 mid_get_vbt_data_r10 2 6308 NULL
+ucs2_strnlen_6342 ucs2_strnlen 0 6342 NULL
+_proc_do_string_6376 _proc_do_string 2 6376 NULL
+osd_req_read_sg_kern_6378 osd_req_read_sg_kern 5 6378 NULL
+posix_acl_fix_xattr_userns_6420 posix_acl_fix_xattr_userns 4 6420 NULL
+ipr_change_queue_depth_6431 ipr_change_queue_depth 2 6431 NULL
+__alloc_bootmem_node_nopanic_6432 __alloc_bootmem_node_nopanic 2-3 6432 NULL
+paging32_gva_to_gpa_nested_6442 paging32_gva_to_gpa_nested 2 6442 NULL
+mlx4_ib_reg_user_mr_6471 mlx4_ib_reg_user_mr 2-3 6471 NULL nohasharray
+ext4_compat_ioctl_6471 ext4_compat_ioctl 3 6471 &mlx4_ib_reg_user_mr_6471
+ieee80211_if_fmt_dot11MeshMaxRetries_6476 ieee80211_if_fmt_dot11MeshMaxRetries 3 6476 NULL
+qp_memcpy_from_queue_6479 qp_memcpy_from_queue 4-5 6479 NULL
+cipso_v4_map_lvl_hton_6490 cipso_v4_map_lvl_hton 0 6490 NULL
+dbg_intr_buf_6501 dbg_intr_buf 2 6501 NULL
+mei_read_6507 mei_read 3 6507 NULL
+read_file_disable_ani_6536 read_file_disable_ani 3 6536 NULL
+rndis_set_oid_6547 rndis_set_oid 4 6547 NULL
+wdm_read_6549 wdm_read 3 6549 NULL
+fb_alloc_cmap_6554 fb_alloc_cmap 2 6554 NULL
+snmp_mib_init_6604 snmp_mib_init 2-3 6604 NULL
+ecryptfs_filldir_6622 ecryptfs_filldir 3 6622 NULL
+virtscsi_alloc_tgt_6643 virtscsi_alloc_tgt 2 6643 NULL
+aac_srcv_ioremap_6659 aac_srcv_ioremap 2 6659 NULL
+process_rcvd_data_6679 process_rcvd_data 3 6679 NULL
+ql_process_mac_rx_skb_6689 ql_process_mac_rx_skb 4 6689 NULL
+btrfs_lookup_csums_range_6696 btrfs_lookup_csums_range 2 6696 NULL
+ps_pspoll_max_apturn_read_6699 ps_pspoll_max_apturn_read 3 6699 NULL
+bnad_debugfs_write_regrd_6706 bnad_debugfs_write_regrd 3 6706 NULL
+mpeg_read_6708 mpeg_read 3 6708 NULL
+set_orig_insn_6712 set_orig_insn 3 6712 NULL
+video_proc_write_6724 video_proc_write 3 6724 NULL
+posix_acl_xattr_count_6725 posix_acl_xattr_count 0-1 6725 NULL
+rds_rdma_pages_6735 rds_rdma_pages 0 6735 NULL
+sfi_check_table_6772 sfi_check_table 1 6772 NULL
+iwl_dbgfs_channels_read_6784 iwl_dbgfs_channels_read 3 6784 NULL
+ieee80211_if_read_6785 ieee80211_if_read 3 6785 NULL
+hdlcdrv_register_6792 hdlcdrv_register 2 6792 NULL
+tx_tx_done_data_read_6799 tx_tx_done_data_read 3 6799 NULL
+make_8259A_irq_6828 make_8259A_irq 1 6828 NULL
+calc_pages_for_6838 calc_pages_for 0-1-2 6838 NULL
+mon_bin_read_6841 mon_bin_read 3 6841 NULL
+snd_cs4281_BA0_read_6847 snd_cs4281_BA0_read 5 6847 NULL
+ieee80211_if_fmt_path_refresh_time_6888 ieee80211_if_fmt_path_refresh_time 3 6888 NULL nohasharray
+raw_seticmpfilter_6888 raw_seticmpfilter 3 6888 &ieee80211_if_fmt_path_refresh_time_6888
+dlmfs_file_write_6892 dlmfs_file_write 3 6892 NULL
+spi_show_regs_6911 spi_show_regs 3 6911 NULL nohasharray
+proc_sessionid_read_6911 proc_sessionid_read 3 6911 &spi_show_regs_6911 nohasharray
+acm_alloc_minor_6911 acm_alloc_minor 0 6911 &proc_sessionid_read_6911
+__kfifo_dma_in_finish_r_6913 __kfifo_dma_in_finish_r 2-3 6913 NULL
+do_msgrcv_6921 do_msgrcv 3 6921 NULL
+cache_do_downcall_6926 cache_do_downcall 3 6926 NULL
+qsfp_cks_6945 qsfp_cks 0-2 6945 NULL
+pch_uart_hal_read_6961 pch_uart_hal_read 0 6961 NULL
+videobuf_dma_init_kernel_6963 videobuf_dma_init_kernel 3 6963 NULL
+rsa_extract_mpi_6973 rsa_extract_mpi 5 6973 NULL
+crypto_authenc_esn_setkey_6985 crypto_authenc_esn_setkey 3 6985 NULL
+request_key_async_6990 request_key_async 4 6990 NULL
+r871x_set_wpa_ie_7000 r871x_set_wpa_ie 3 7000 NULL
+cipso_v4_gentag_enum_7006 cipso_v4_gentag_enum 0 7006 NULL
+tracing_cpumask_read_7010 tracing_cpumask_read 3 7010 NULL
+wimax_msg_7030 wimax_msg 4 7030 NULL
+ipath_get_base_info_7043 ipath_get_base_info 3 7043 NULL
+snd_pcm_oss_bytes_7051 snd_pcm_oss_bytes 2 7051 NULL
+event_enable_read_7074 event_enable_read 3 7074 NULL
+beacon_interval_read_7091 beacon_interval_read 3 7091 NULL
+lp_compat_ioctl_7098 lp_compat_ioctl 3 7098 NULL
+pipeline_enc_rx_stat_fifo_int_read_7107 pipeline_enc_rx_stat_fifo_int_read 3 7107 NULL
+check_header_7108 check_header 0 7108 NULL
+qlcnic_enable_msix_7144 qlcnic_enable_msix 2 7144 NULL
+__alloc_objio_seg_7203 __alloc_objio_seg 1 7203 NULL
+sys32_ipc_7238 sys32_ipc 3-5-6 7238 NULL
+get_param_h_7247 get_param_h 0 7247 NULL
+af_alg_make_sg_7254 af_alg_make_sg 3 7254 NULL
+vm_mmap_pgoff_7259 vm_mmap_pgoff 0 7259 NULL
+dma_ops_alloc_addresses_7272 dma_ops_alloc_addresses 3-4-5 7272 NULL
+rx_rate_rx_frames_per_rates_read_7282 rx_rate_rx_frames_per_rates_read 3 7282 NULL
+wb_remove_mapping_7307 wb_remove_mapping 2 7307 NULL
+mgmt_control_7349 mgmt_control 3 7349 NULL
+ext3_free_blocks_7362 ext3_free_blocks 3-4 7362 NULL
+ieee80211_if_read_dot11MeshHWMPactivePathTimeout_7368 ieee80211_if_read_dot11MeshHWMPactivePathTimeout 3 7368 NULL
+hweight_long_7388 hweight_long 0-1 7388 NULL
+vhost_scsi_compat_ioctl_7393 vhost_scsi_compat_ioctl 3 7393 NULL
+sl_change_mtu_7396 sl_change_mtu 2 7396 NULL
+readb_7401 readb 0 7401 NULL
+drm_property_create_blob_7414 drm_property_create_blob 2 7414 NULL
+ip_options_get_alloc_7448 ip_options_get_alloc 1 7448 NULL
+numa_emulation_7466 numa_emulation 2 7466 NULL
+__mutex_lock_common_7469 __mutex_lock_common 0 7469 NULL
+garp_request_join_7471 garp_request_join 4 7471 NULL
+compat_sys_msgrcv_7482 compat_sys_msgrcv 2 7482 NULL
+snd_pcm_lib_read1_7491 snd_pcm_lib_read1 0-3 7491 NULL
+sdhci_alloc_host_7509 sdhci_alloc_host 2 7509 NULL nohasharray
+ahash_instance_headroom_7509 ahash_instance_headroom 0 7509 &sdhci_alloc_host_7509
+array_zalloc_7519 array_zalloc 1-2 7519 NULL
+goal_in_my_reservation_7553 goal_in_my_reservation 3 7553 NULL
+smk_read_mapped_7562 smk_read_mapped 3 7562 NULL
+ext3_try_to_allocate_7590 ext3_try_to_allocate 5-3 7590 NULL
+groups_alloc_7614 groups_alloc 1 7614 NULL
+sg_virt_7616 sg_virt 0 7616 NULL
+skb_copy_expand_7685 skb_copy_expand 2-3 7685 NULL nohasharray
+acpi_ex_allocate_name_string_7685 acpi_ex_allocate_name_string 2-1 7685 &skb_copy_expand_7685
+acpi_ns_get_pathname_length_7699 acpi_ns_get_pathname_length 0 7699 NULL
+dev_write_7708 dev_write 3 7708 NULL
+brcmf_sdcard_send_buf_7713 brcmf_sdcard_send_buf 6 7713 NULL
+set_bypass_pwup_pfs_7742 set_bypass_pwup_pfs 3 7742 NULL
+vxge_device_register_7752 vxge_device_register 4 7752 NULL
+osdv2_attr_list_elem_size_7763 osdv2_attr_list_elem_size 0-1 7763 NULL
+ubi_io_read_vid_hdr_7766 ubi_io_read_vid_hdr 0 7766 NULL
+ioread32be_7773 ioread32be 0 7773 NULL
+alloc_candev_7776 alloc_candev 1-2 7776 NULL
+dfs_global_file_read_7787 dfs_global_file_read 3 7787 NULL
+bnx2_nvram_write_7790 bnx2_nvram_write 4-2 7790 NULL
+diva_os_copy_from_user_7792 diva_os_copy_from_user 4 7792 NULL
+ubifs_leb_read_7828 ubifs_leb_read 0 7828 NULL
+dvb_dmxdev_read_sec_7892 dvb_dmxdev_read_sec 4 7892 NULL
+xfs_trans_get_efi_7898 xfs_trans_get_efi 2 7898 NULL
+gfs2_tune_get_i_7903 gfs2_tune_get_i 0 7903 NULL
+ext3_group_extend_7911 ext3_group_extend 3 7911 NULL
+libfc_host_alloc_7917 libfc_host_alloc 2 7917 NULL
+f_hidg_write_7932 f_hidg_write 3 7932 NULL
+io_apic_setup_irq_pin_once_7934 io_apic_setup_irq_pin_once 1 7934 NULL
+integrity_digsig_verify_7956 integrity_digsig_verify 3 7956 NULL
+smk_write_load_self_7958 smk_write_load_self 3 7958 NULL
+sys_mbind_7990 sys_mbind 5 7990 NULL
+tt3650_ci_msg_locked_8013 tt3650_ci_msg_locked 4 8013 NULL
+vcs_read_8017 vcs_read 3 8017 NULL
+normalize_up_8037 normalize_up 0-1-2 8037 NULL
+vhost_add_used_and_signal_n_8038 vhost_add_used_and_signal_n 4 8038 NULL
+ms_read_multiple_pages_8052 ms_read_multiple_pages 5-4 8052 NULL
+dgrp_mon_read_8065 dgrp_mon_read 3 8065 NULL
+leb_read_lock_8070 leb_read_lock 0 8070 NULL
+alloc_targets_8074 alloc_targets 2 8074 NULL nohasharray
+qla4xxx_post_ping_evt_work_8074 qla4xxx_post_ping_evt_work 4 8074 &alloc_targets_8074
+venus_lookup_8121 venus_lookup 4 8121 NULL
+ieee80211_if_fmt_num_buffered_multicast_8127 ieee80211_if_fmt_num_buffered_multicast 3 8127 NULL
+dma_map_area_8178 dma_map_area 5-2-3 8178 NULL
+__sk_mem_schedule_8185 __sk_mem_schedule 2 8185 NULL
+ieee80211_if_fmt_dot11MeshHoldingTimeout_8187 ieee80211_if_fmt_dot11MeshHoldingTimeout 3 8187 NULL
+recent_mt_proc_write_8206 recent_mt_proc_write 3 8206 NULL
+rt2x00debug_write_bbp_8212 rt2x00debug_write_bbp 3 8212 NULL
+ad7879_spi_multi_read_8218 ad7879_spi_multi_read 3 8218 NULL
+play_iframe_8219 play_iframe 3 8219 NULL
+create_log_8225 create_log 2 8225 NULL nohasharray
+kvm_mmu_page_set_gfn_8225 kvm_mmu_page_set_gfn 2 8225 &create_log_8225
+sctp_ssnmap_size_8228 sctp_ssnmap_size 0-1-2 8228 NULL
+bnx2x_iov_get_max_queue_count_8235 bnx2x_iov_get_max_queue_count 0 8235 NULL
+check_xattr_ref_inode_8244 check_xattr_ref_inode 0 8244 NULL
+add_rx_skb_8257 add_rx_skb 3 8257 NULL
+t3_init_l2t_8261 t3_init_l2t 1 8261 NULL
+init_cdev_8274 init_cdev 1 8274 NULL
+rproc_recovery_write_8281 rproc_recovery_write 3 8281 NULL
+qib_decode_7220_err_8315 qib_decode_7220_err 3 8315 NULL
+construct_key_and_link_8321 construct_key_and_link 4 8321 NULL
+ipwireless_send_packet_8328 ipwireless_send_packet 4 8328 NULL
+tracing_entries_read_8345 tracing_entries_read 3 8345 NULL
+ieee80211_if_fmt_ht_opmode_8347 ieee80211_if_fmt_ht_opmode 3 8347 NULL
+ping_getfrag_8360 ping_getfrag 4-3 8360 NULL
+uvc_v4l2_compat_ioctl32_8375 uvc_v4l2_compat_ioctl32 3 8375 NULL
+xdi_copy_from_user_8395 xdi_copy_from_user 4 8395 NULL
+zd_rf_scnprint_id_8406 zd_rf_scnprint_id 0-3 8406 NULL
+uvc_v4l2_ioctl_8411 uvc_v4l2_ioctl 2 8411 NULL
+pca953x_gpio_to_irq_8424 pca953x_gpio_to_irq 2 8424 NULL
+snd_usb_ctl_msg_8436 snd_usb_ctl_msg 8 8436 NULL
+irq_create_mapping_8437 irq_create_mapping 2 8437 NULL
+afs_cell_lookup_8482 afs_cell_lookup 2 8482 NULL
+batadv_tt_len_8502 batadv_tt_len 0-1 8502 NULL
+dev_config_8506 dev_config 3 8506 NULL
+ACL_to_cifs_posix_8509 ACL_to_cifs_posix 3 8509 NULL
+opticon_process_data_packet_8524 opticon_process_data_packet 3 8524 NULL
+pnp_resource_len_8532 pnp_resource_len 0 8532 NULL
+alloc_pg_vec_8533 alloc_pg_vec 2 8533 NULL
+ocfs2_read_virt_blocks_8538 ocfs2_read_virt_blocks 2-3 8538 NULL
+profile_remove_8556 profile_remove 3 8556 NULL
+cache_slow_downcall_8570 cache_slow_downcall 2 8570 NULL
+mga_ioremap_8571 mga_ioremap 1-2 8571 NULL
+isr_dma0_done_read_8574 isr_dma0_done_read 3 8574 NULL
+tower_write_8580 tower_write 3 8580 NULL
+rtllib_MFIE_rate_len_8606 rtllib_MFIE_rate_len 0 8606 NULL
+shash_setkey_unaligned_8620 shash_setkey_unaligned 3 8620 NULL
+it821x_firmware_command_8628 it821x_firmware_command 3 8628 NULL
+scsi_dma_map_8632 scsi_dma_map 0 8632 NULL
+fuse_send_write_pages_8636 fuse_send_write_pages 0 8636 NULL
+generic_acl_set_8658 generic_acl_set 4 8658 NULL
+dio_bio_alloc_8677 dio_bio_alloc 5 8677 NULL
+lbs_bcnmiss_read_8678 lbs_bcnmiss_read 3 8678 NULL
+tc3589x_gpio_irq_unmap_8680 tc3589x_gpio_irq_unmap 2 8680 NULL
+rproc_trace_read_8686 rproc_trace_read 3 8686 NULL
+skb_frag_size_8695 skb_frag_size 0 8695 NULL
+arcfb_write_8702 arcfb_write 3 8702 NULL
+i_size_read_8703 i_size_read 0 8703 NULL nohasharray
+init_header_8703 init_header 0 8703 &i_size_read_8703
+ctrl_out_8712 ctrl_out 3-5 8712 NULL
+jffs2_acl_count_8729 jffs2_acl_count 0-1 8729 NULL
+f_dupfd_8730 f_dupfd 1 8730 NULL
+__create_irqs_8733 __create_irqs 2-1 8733 NULL
+pca953x_gpio_irq_map_8737 pca953x_gpio_irq_map 2 8737 NULL
+tx_tx_exch_expiry_read_8749 tx_tx_exch_expiry_read 3 8749 NULL
+joydev_compat_ioctl_8765 joydev_compat_ioctl 2 8765 NULL
+sys_prctl_8766 sys_prctl 4 8766 NULL
+x32_arch_ptrace_8767 x32_arch_ptrace 3-4 8767 NULL
+paging32_prefetch_gpte_8783 paging32_prefetch_gpte 4 8783 NULL
+ext4_try_to_write_inline_data_8785 ext4_try_to_write_inline_data 3-4 8785 NULL
+__bitmap_weight_8796 __bitmap_weight 0-2 8796 NULL
+cpuset_common_file_read_8800 cpuset_common_file_read 5 8800 NULL
+metronomefb_write_8823 metronomefb_write 3 8823 NULL
+icmpv6_manip_pkt_8833 icmpv6_manip_pkt 4 8833 NULL nohasharray
+get_queue_depth_8833 get_queue_depth 0 8833 &icmpv6_manip_pkt_8833
+dvb_ringbuffer_pkt_next_8834 dvb_ringbuffer_pkt_next 0-2 8834 NULL
+usb_ep_queue_8839 usb_ep_queue 0 8839 NULL
+clear_bitset_8840 clear_bitset 2 8840 NULL
+debug_debug1_read_8856 debug_debug1_read 3 8856 NULL
+wa_nep_queue_8858 wa_nep_queue 2 8858 NULL
+compressed_bio_size_8887 compressed_bio_size 0-2 8887 NULL
+tracing_max_lat_read_8890 tracing_max_lat_read 3 8890 NULL
+sdio_max_byte_size_8907 sdio_max_byte_size 0 8907 NULL
+layout_commit_8926 layout_commit 3 8926 NULL
+adjust_priv_size_8935 adjust_priv_size 0-1 8935 NULL
+driver_stats_read_8944 driver_stats_read 3 8944 NULL
+read_file_tgt_stats_8959 read_file_tgt_stats 3 8959 NULL
+seq_bitmap_list_8963 seq_bitmap_list 3 8963 NULL
+usb_allocate_stream_buffers_8964 usb_allocate_stream_buffers 3 8964 NULL
+qib_qsfp_dump_8966 qib_qsfp_dump 0-3 8966 NULL
+venus_mkdir_8967 venus_mkdir 4 8967 NULL
+vol_cdev_read_8968 vol_cdev_read 3 8968 NULL nohasharray
+seq_open_net_8968 seq_open_net 4 8968 &vol_cdev_read_8968
+bio_integrity_get_tag_8974 bio_integrity_get_tag 3 8974 NULL
+snd_emu10k1_ptr_read_9026 snd_emu10k1_ptr_read 0-2 9026 NULL
+__pskb_copy_9038 __pskb_copy 2 9038 NULL
+nla_put_9042 nla_put 3 9042 NULL
+snd_emu10k1_synth_copy_from_user_9061 snd_emu10k1_synth_copy_from_user 3-5 9061 NULL
+snd_gus_dram_peek_9062 snd_gus_dram_peek 4 9062 NULL
+fib_info_hash_alloc_9075 fib_info_hash_alloc 1 9075 NULL
+string_9080 string 0 9080 NULL
+create_queues_9088 create_queues 2-3 9088 NULL
+ftdi_prepare_write_buffer_9093 ftdi_prepare_write_buffer 3 9093 NULL
+caif_stream_sendmsg_9110 caif_stream_sendmsg 4 9110 NULL nohasharray
+gfn_to_rmap_9110 gfn_to_rmap 2-3 9110 &caif_stream_sendmsg_9110
+pmcraid_change_queue_depth_9116 pmcraid_change_queue_depth 2 9116 NULL
+mq_remove_mapping_9124 mq_remove_mapping 2 9124 NULL
+mlx4_alloc_resize_umem_9132 mlx4_alloc_resize_umem 3 9132 NULL
+ext4_list_backups_9138 ext4_list_backups 0 9138 NULL
+dbg_command_buf_9165 dbg_command_buf 2 9165 NULL
+isr_irqs_read_9181 isr_irqs_read 3 9181 NULL
+count_leading_zeros_9183 count_leading_zeros 0 9183 NULL
+alloc_group_attrs_9194 alloc_group_attrs 2 9194 NULL nohasharray
+altera_swap_ir_9194 altera_swap_ir 2 9194 &alloc_group_attrs_9194
+gx1_gx_base_9198 gx1_gx_base 0 9198 NULL
+snd_m3_get_pointer_9206 snd_m3_get_pointer 0 9206 NULL
+get_pfn_9207 get_pfn 1 9207 NULL
+tx_tx_prepared_descs_read_9221 tx_tx_prepared_descs_read 3 9221 NULL
+sctp_getsockopt_delayed_ack_9232 sctp_getsockopt_delayed_ack 2 9232 NULL
+ocfs2_clear_ext_refcount_9256 ocfs2_clear_ext_refcount 4 9256 NULL
+tcf_csum_ipv4_icmp_9258 tcf_csum_ipv4_icmp 3 9258 NULL
+sparse_early_usemaps_alloc_node_9269 sparse_early_usemaps_alloc_node 4 9269 NULL
+hdpvr_read_9273 hdpvr_read 3 9273 NULL
+flakey_status_9274 flakey_status 5 9274 NULL
+qla82xx_pci_set_window_9303 qla82xx_pci_set_window 0-2 9303 NULL
+iwl_dbgfs_stations_read_9309 iwl_dbgfs_stations_read 3 9309 NULL
+ceph_sync_setxattr_9310 ceph_sync_setxattr 4 9310 NULL
+memblock_find_in_range_node_9328 memblock_find_in_range_node 0-3-4 9328 NULL
+ieee80211_if_fmt_txpower_9334 ieee80211_if_fmt_txpower 3 9334 NULL
+ocfs2_orphan_for_truncate_9342 ocfs2_orphan_for_truncate 4 9342 NULL
+read_9397 read 3 9397 NULL
+nf_nat_sip_expect_9418 nf_nat_sip_expect 8 9418 NULL
+bm_realloc_pages_9431 bm_realloc_pages 2 9431 NULL
+ffs_ep0_write_9438 ffs_ep0_write 3 9438 NULL
+kmalloc_array_9444 kmalloc_array 1-2 9444 NULL
+ieee80211_if_fmt_fwded_unicast_9454 ieee80211_if_fmt_fwded_unicast 3 9454 NULL
+mcs_unwrap_mir_9455 mcs_unwrap_mir 3 9455 NULL
+ext3_xattr_set_acl_9467 ext3_xattr_set_acl 4 9467 NULL
+agp_generic_alloc_user_9470 agp_generic_alloc_user 1 9470 NULL
+__alloc_preds_9492 __alloc_preds 2 9492 NULL nohasharray
+crypt_status_9492 crypt_status 5 9492 &__alloc_preds_9492
+lp_write_9511 lp_write 3 9511 NULL
+xen_remap_exchanged_ptes_9513 xen_remap_exchanged_ptes 1 9513 NULL
+scsi_tgt_kspace_exec_9522 scsi_tgt_kspace_exec 8 9522 NULL
+read_file_dma_9530 read_file_dma 3 9530 NULL
+ext3_alloc_branch_9534 ext3_alloc_branch 5 9534 NULL
+audit_log_n_untrustedstring_9548 audit_log_n_untrustedstring 3 9548 NULL
+fw_node_create_9559 fw_node_create 2 9559 NULL
+ipath_get_user_pages_9561 ipath_get_user_pages 1-2 9561 NULL
+kobj_map_9566 kobj_map 2-3 9566 NULL
+f2fs_read_data_pages_9574 f2fs_read_data_pages 4 9574 NULL
+biovec_create_pools_9575 biovec_create_pools 2 9575 NULL
+ieee80211_tdls_mgmt_9581 ieee80211_tdls_mgmt 8 9581 NULL
+do_sync_9604 do_sync 1 9604 NULL
+snd_emu10k1_fx8010_read_9605 snd_emu10k1_fx8010_read 5-6 9605 NULL
+saa7164_buffer_alloc_user_9627 saa7164_buffer_alloc_user 2 9627 NULL
+ceph_copy_user_to_page_vector_9635 ceph_copy_user_to_page_vector 4-3 9635 NULL
+compat_sys_keyctl_9639 compat_sys_keyctl 4-2-3 9639 NULL
+ocfs2_xattr_get_rec_9652 ocfs2_xattr_get_rec 0 9652 NULL
+uvc_alloc_buffers_9656 uvc_alloc_buffers 2-3 9656 NULL
+queue_received_packet_9657 queue_received_packet 5 9657 NULL
+snd_opl4_mem_proc_write_9670 snd_opl4_mem_proc_write 5 9670 NULL
+ks8842_read16_9676 ks8842_read16 0 9676 NULL nohasharray
+dns_query_9676 dns_query 3 9676 &ks8842_read16_9676
+qib_7322_handle_hwerrors_9678 qib_7322_handle_hwerrors 3 9678 NULL
+__erst_read_from_storage_9690 __erst_read_from_storage 0 9690 NULL
+is_hole_9694 is_hole 2 9694 NULL nohasharray
+x25_asy_compat_ioctl_9694 x25_asy_compat_ioctl 4 9694 &is_hole_9694
+fnb_9703 fnb 2-3 9703 NULL
+fuse_iter_npages_9705 fuse_iter_npages 0 9705 NULL nohasharray
+ieee80211_if_read_aid_9705 ieee80211_if_read_aid 3 9705 &fuse_iter_npages_9705
+ieee80211_if_fmt_num_mcast_sta_9738 ieee80211_if_fmt_num_mcast_sta 3 9738 NULL
+ddb_input_read_9743 ddb_input_read 3 9743 NULL
+sta_last_ack_signal_read_9751 sta_last_ack_signal_read 3 9751 NULL
+btrfs_super_root_9763 btrfs_super_root 0 9763 NULL
+__alloc_percpu_9764 __alloc_percpu 1-2 9764 NULL
+__blk_queue_init_tags_9778 __blk_queue_init_tags 2 9778 NULL
+snd_mem_proc_write_9786 snd_mem_proc_write 3 9786 NULL
+ttm_bo_fbdev_io_9805 ttm_bo_fbdev_io 4 9805 NULL
+ieee80211_if_read_state_9813 ieee80211_if_read_state 3 9813 NULL
+pnp_mem_start_9817 pnp_mem_start 0 9817 NULL
+kernel_physical_mapping_init_9818 kernel_physical_mapping_init 0-2-1 9818 NULL
+dvb_dvr_set_buffer_size_9840 dvb_dvr_set_buffer_size 2 9840 NULL
+cfg80211_send_deauth_9862 cfg80211_send_deauth 3 9862 NULL
+pmcraid_alloc_sglist_9864 pmcraid_alloc_sglist 1 9864 NULL
+btrfs_free_reserved_extent_9867 btrfs_free_reserved_extent 2 9867 NULL
+f1x_translate_sysaddr_to_cs_9868 f1x_translate_sysaddr_to_cs 2 9868 NULL
+mlx4_bitmap_alloc_range_9876 mlx4_bitmap_alloc_range 2-3 9876 NULL
+wil_read_file_ioblob_9878 wil_read_file_ioblob 3 9878 NULL
+bm_register_write_9893 bm_register_write 3 9893 NULL nohasharray
+snd_midi_event_new_9893 snd_midi_event_new 1 9893 &bm_register_write_9893
+snd_gf1_pcm_playback_copy_9895 snd_gf1_pcm_playback_copy 3-5 9895 NULL
+nonpaging_page_fault_9908 nonpaging_page_fault 2 9908 NULL
+gen6_get_total_gtt_size_9913 gen6_get_total_gtt_size 0-1 9913 NULL
+pstore_ftrace_knob_read_9947 pstore_ftrace_knob_read 3 9947 NULL
+read_file_misc_9948 read_file_misc 3 9948 NULL
+set_rxd_buffer_pointer_9950 set_rxd_buffer_pointer 8 9950 NULL
+ext2_new_blocks_9954 ext2_new_blocks 2 9954 NULL
+csum_partial_copy_fromiovecend_9957 csum_partial_copy_fromiovecend 3-4 9957 NULL
+get_free_serial_index_9969 get_free_serial_index 0 9969 NULL
+btrfs_add_link_9973 btrfs_add_link 5 9973 NULL
+ath6kl_usb_submit_ctrl_out_9978 ath6kl_usb_submit_ctrl_out 6 9978 NULL
+aat2870_dump_reg_10019 aat2870_dump_reg 0 10019 NULL
+handle_request_10024 handle_request 9 10024 NULL
+batadv_orig_hash_add_if_10033 batadv_orig_hash_add_if 2 10033 NULL
+ieee80211_probereq_get_10040 ieee80211_probereq_get 4-5 10040 NULL
+xen_destroy_contiguous_region_10054 xen_destroy_contiguous_region 1 10054 NULL
+ieee80211_set_probe_resp_10077 ieee80211_set_probe_resp 3 10077 NULL
+ufs_bitmap_search_10105 ufs_bitmap_search 0-3 10105 NULL
+get_elem_size_10110 get_elem_size 0-2 10110 NULL nohasharray
+dynamic_ps_timeout_read_10110 dynamic_ps_timeout_read 3 10110 &get_elem_size_10110
+jbd_alloc_10112 jbd_alloc 0 10112 NULL nohasharray
+gfs2_meta_read_10112 gfs2_meta_read 0 10112 &jbd_alloc_10112
+offset_to_bit_10134 offset_to_bit 0 10134 NULL
+aes_decrypt_packets_read_10155 aes_decrypt_packets_read 3 10155 NULL
+rx_out_of_mem_read_10157 rx_out_of_mem_read 3 10157 NULL
+hidg_alloc_ep_req_10159 hidg_alloc_ep_req 2 10159 NULL nohasharray
+ol_chunk_entries_10159 ol_chunk_entries 0 10159 &hidg_alloc_ep_req_10159
+stmpe_irq_unmap_10164 stmpe_irq_unmap 2 10164 NULL
+asd_store_update_bios_10165 asd_store_update_bios 4 10165 NULL
+proc_pid_attr_read_10173 proc_pid_attr_read 3 10173 NULL
+jffs2_user_setxattr_10182 jffs2_user_setxattr 4 10182 NULL
+do_ioctl_trans_10194 do_ioctl_trans 3 10194 NULL
+cciss_proc_write_10259 cciss_proc_write 3 10259 NULL
+snd_rme9652_capture_copy_10287 snd_rme9652_capture_copy 5 10287 NULL
+ubi_leb_change_10289 ubi_leb_change 4 10289 NULL
+read_emulate_10310 read_emulate 2-4 10310 NULL
+read_file_spectral_count_10320 read_file_spectral_count 3 10320 NULL
+ttm_object_device_init_10321 ttm_object_device_init 2 10321 NULL
+ubi_leb_read_10328 ubi_leb_read 0 10328 NULL
+tun_sendmsg_10337 tun_sendmsg 4 10337 NULL
+get_dump_page_10338 get_dump_page 1 10338 NULL
+ufx_alloc_urb_list_10349 ufx_alloc_urb_list 3 10349 NULL
+dbAllocAny_10354 dbAllocAny 0 10354 NULL
+ath6kl_listen_int_read_10355 ath6kl_listen_int_read 3 10355 NULL
+ms_write_multiple_pages_10362 ms_write_multiple_pages 6-5 10362 NULL
+sta_ht_capa_read_10366 sta_ht_capa_read 3 10366 NULL
+ecryptfs_decode_and_decrypt_filename_10379 ecryptfs_decode_and_decrypt_filename 5 10379 NULL
+do_compat_pselect_10398 do_compat_pselect 1 10398 NULL
+fwtty_rx_10434 fwtty_rx 3 10434 NULL
+event_phy_transmit_error_read_10471 event_phy_transmit_error_read 3 10471 NULL
+ca91cx42_alloc_resource_10502 ca91cx42_alloc_resource 2 10502 NULL
+qib_alloc_fast_reg_page_list_10507 qib_alloc_fast_reg_page_list 2 10507 NULL
+sel_write_disable_10511 sel_write_disable 3 10511 NULL
+osd_req_write_sg_kern_10514 osd_req_write_sg_kern 5 10514 NULL
+rds_message_alloc_10517 rds_message_alloc 1 10517 NULL
+ocfs2_add_refcounted_extent_10526 ocfs2_add_refcounted_extent 6 10526 NULL
+get_vm_area_caller_10527 get_vm_area_caller 1 10527 NULL
+snd_pcm_lib_read_10536 snd_pcm_lib_read 0-3 10536 NULL
+ieee80211_send_probe_req_10539 ieee80211_send_probe_req 4-6 10539 NULL
+ext4_write_begin_10576 ext4_write_begin 3-4 10576 NULL
+scrub_remap_extent_10588 scrub_remap_extent 2 10588 NULL
+otp_read_10594 otp_read 2-4-5 10594 NULL
+supply_map_read_file_10608 supply_map_read_file 3 10608 NULL
+ima_show_htable_violations_10619 ima_show_htable_violations 3 10619 NULL
+alloc_coherent_10632 alloc_coherent 2 10632 NULL
+nfs_idmap_lookup_id_10660 nfs_idmap_lookup_id 2 10660 NULL
+parport_write_10669 parport_write 0 10669 NULL
+inl_10708 inl 0 10708 NULL nohasharray
+selinux_inode_setxattr_10708 selinux_inode_setxattr 4 10708 &inl_10708
+pvr2_ioread_read_10720 pvr2_ioread_read 3 10720 NULL nohasharray
+shash_async_setkey_10720 shash_async_setkey 3 10720 &pvr2_ioread_read_10720
+spi_sync_10731 spi_sync 0 10731 NULL
+sctp_getsockopt_maxseg_10737 sctp_getsockopt_maxseg 2 10737 NULL nohasharray
+apu_get_register_10737 apu_get_register 0 10737 &sctp_getsockopt_maxseg_10737
+compat_sys_msgsnd_10738 compat_sys_msgsnd 2 10738 NULL
+sys_syslog_10746 sys_syslog 3 10746 NULL
+alloc_one_pg_vec_page_10747 alloc_one_pg_vec_page 1 10747 NULL
+vhost_add_used_n_10760 vhost_add_used_n 3 10760 NULL
+kvm_read_guest_atomic_10765 kvm_read_guest_atomic 4-2 10765 NULL
+wb_set_dirty_10778 wb_set_dirty 2 10778 NULL
+__qp_memcpy_to_queue_10779 __qp_memcpy_to_queue 2-4 10779 NULL
+sys_bind_10799 sys_bind 3 10799 NULL
+compat_put_int_10828 compat_put_int 1 10828 NULL
+lbs_sleepparams_read_10840 lbs_sleepparams_read 3 10840 NULL
+ida_get_new_above_10853 ida_get_new_above 2 10853 NULL
+fuse_conn_max_background_read_10855 fuse_conn_max_background_read 3 10855 NULL
+ol_chunk_blocks_10864 ol_chunk_blocks 0 10864 NULL
+snd_pcm_oss_write1_10872 snd_pcm_oss_write1 3 10872 NULL
+mid_get_vbt_data_r0_10876 mid_get_vbt_data_r0 2 10876 NULL
+bl_mark_for_commit_10879 bl_mark_for_commit 2-3 10879 NULL
+get_scq_10897 get_scq 2 10897 NULL
+cgroup_write_string_10900 cgroup_write_string 5 10900 NULL
+tifm_alloc_adapter_10903 tifm_alloc_adapter 1 10903 NULL
+__copy_from_user_10918 __copy_from_user 3 10918 NULL
+da9052_map_irq_10952 da9052_map_irq 2 10952 NULL
+bm_entry_read_10976 bm_entry_read 3 10976 NULL
+i915_min_freq_write_10981 i915_min_freq_write 3 10981 NULL
+sched_autogroup_write_10984 sched_autogroup_write 3 10984 NULL
+__hci_num_ctrl_10985 __hci_num_ctrl 0 10985 NULL
+xfrm_hash_alloc_10997 xfrm_hash_alloc 1 10997 NULL
+rx_filter_accum_arp_pend_requests_read_11003 rx_filter_accum_arp_pend_requests_read 3 11003 NULL
+SetLineNumber_11023 SetLineNumber 0 11023 NULL
+mb_find_next_bit_11037 mb_find_next_bit 2-3-0 11037 NULL
+tda10048_writeregbulk_11050 tda10048_writeregbulk 4 11050 NULL
+tcp_send_mss_11079 tcp_send_mss 0 11079 NULL
+count_argc_11083 count_argc 0 11083 NULL
+kvm_write_guest_cached_11106 kvm_write_guest_cached 4 11106 NULL
+stmpe_gpio_to_irq_11110 stmpe_gpio_to_irq 2 11110 NULL
+tw_change_queue_depth_11116 tw_change_queue_depth 2 11116 NULL
+page_offset_11120 page_offset 0 11120 NULL
+tracing_buffers_read_11124 tracing_buffers_read 3 11124 NULL
+acpi_os_map_memory_11161 acpi_os_map_memory 1-2 11161 NULL
+ioat2_alloc_ring_11172 ioat2_alloc_ring 2 11172 NULL nohasharray
+snd_gf1_pcm_playback_silence_11172 snd_gf1_pcm_playback_silence 3-4 11172 &ioat2_alloc_ring_11172
+__swab16p_11220 __swab16p 0 11220 NULL
+il_dbgfs_rx_queue_read_11221 il_dbgfs_rx_queue_read 3 11221 NULL
+mmap_region_11247 mmap_region 0-2 11247 NULL
+ubifs_write_node_11258 ubifs_write_node 5-3 11258 NULL
+dm_cache_discard_bitset_resize_11262 dm_cache_discard_bitset_resize 3 11262 NULL
+hugetlbfs_read_11268 hugetlbfs_read 3 11268 NULL
+cru_detect_11272 cru_detect 1 11272 NULL
+ext4_xattr_check_names_11314 ext4_xattr_check_names 0 11314 NULL
+tcp_send_rcvq_11316 tcp_send_rcvq 3 11316 NULL
+construct_key_11329 construct_key 3 11329 NULL nohasharray
+__kfifo_out_peek_11329 __kfifo_out_peek 0-3 11329 &construct_key_11329
+next_segment_11330 next_segment 0-2-1 11330 NULL
+persistent_ram_buffer_map_11332 persistent_ram_buffer_map 1-2 11332 NULL
+ext4_get_inline_size_11349 ext4_get_inline_size 0 11349 NULL
+i915_max_freq_write_11350 i915_max_freq_write 3 11350 NULL
+sel_write_create_11353 sel_write_create 3 11353 NULL
+handle_unit_11355 handle_unit 0-1 11355 NULL
+batadv_skb_head_push_11360 batadv_skb_head_push 2 11360 NULL
+drm_vblank_init_11362 drm_vblank_init 2 11362 NULL
+qib_get_base_info_11369 qib_get_base_info 3 11369 NULL
+dev_irnet_write_11398 dev_irnet_write 3 11398 NULL
+___alloc_bootmem_11410 ___alloc_bootmem 1-2 11410 NULL
+str_to_user_11411 str_to_user 2 11411 NULL
+mem_fw_gen_free_mem_blks_read_11413 mem_fw_gen_free_mem_blks_read 3 11413 NULL
+ath6kl_wmi_test_rx_11414 ath6kl_wmi_test_rx 3 11414 NULL
+adis16480_show_firmware_revision_11417 adis16480_show_firmware_revision 3 11417 NULL
+trace_options_read_11419 trace_options_read 3 11419 NULL
+xd_read_multiple_pages_11422 xd_read_multiple_pages 5-4 11422 NULL
+prepare_image_11424 prepare_image 0 11424 NULL
+vring_size_11426 vring_size 0-1-2 11426 NULL
+bttv_read_11432 bttv_read 3 11432 NULL
+create_zero_mask_11453 create_zero_mask 0-1 11453 NULL
+swp_offset_11475 swp_offset 0 11475 NULL
+sca3000_read_first_n_hw_rb_11479 sca3000_read_first_n_hw_rb 2 11479 NULL
+xfs_file_buffered_aio_write_11492 xfs_file_buffered_aio_write 4 11492 NULL
+sd_do_mode_sense_11507 sd_do_mode_sense 5 11507 NULL
+kmem_zalloc_11510 kmem_zalloc 1 11510 NULL
+twl_direction_in_11527 twl_direction_in 2 11527 NULL
+setup_IO_APIC_irq_extra_11537 setup_IO_APIC_irq_extra 1 11537 NULL
+skb_cow_data_11565 skb_cow_data 0-2 11565 NULL
+mlx4_init_cmpt_table_11569 mlx4_init_cmpt_table 3 11569 NULL
+oprofilefs_ulong_to_user_11582 oprofilefs_ulong_to_user 3 11582 NULL
+snd_pcm_action_11589 snd_pcm_action 0 11589 NULL
+fw_device_op_ioctl_11595 fw_device_op_ioctl 2 11595 NULL
+sisusb_send_bridge_packet_11649 sisusb_send_bridge_packet 2 11649 NULL
+nla_total_size_11658 nla_total_size 0-1 11658 NULL
+ide_queue_pc_tail_11673 ide_queue_pc_tail 5 11673 NULL
+btrfs_alloc_delayed_item_11678 btrfs_alloc_delayed_item 1 11678 NULL
+dsp_buffer_alloc_11684 dsp_buffer_alloc 2 11684 NULL
+sctp_setsockopt_hmac_ident_11687 sctp_setsockopt_hmac_ident 3 11687 NULL
+split_11691 split 2 11691 NULL
+snd_ctl_elem_user_tlv_11695 snd_ctl_elem_user_tlv 3 11695 NULL
+blk_rq_cur_bytes_11723 blk_rq_cur_bytes 0 11723 NULL
+tcf_csum_ipv6_icmp_11738 tcf_csum_ipv6_icmp 4 11738 NULL
+nfsd4_get_drc_mem_11748 nfsd4_get_drc_mem 0-1-2 11748 NULL
+dm_bio_prison_create_11749 dm_bio_prison_create 1 11749 NULL
+iwl_dbgfs_qos_read_11753 iwl_dbgfs_qos_read 3 11753 NULL
+ps_pspoll_timeouts_read_11776 ps_pspoll_timeouts_read 3 11776 NULL
+ebt_buf_add_11779 ebt_buf_add 0 11779 NULL
+btrfs_key_blockptr_11786 btrfs_key_blockptr 0 11786 NULL
+pcpu_fc_alloc_11818 pcpu_fc_alloc 2-3 11818 NULL
+zerocopy_sg_from_iovec_11828 zerocopy_sg_from_iovec 3 11828 NULL
+sctp_setsockopt_maxseg_11829 sctp_setsockopt_maxseg 3 11829 NULL
+rts51x_read_status_11830 rts51x_read_status 4 11830 NULL
+unix_stream_connect_11844 unix_stream_connect 3 11844 NULL
+nf_nat_sdp_media_11863 nf_nat_sdp_media 9 11863 NULL
+ecryptfs_copy_filename_11868 ecryptfs_copy_filename 4 11868 NULL
+ieee80211_rx_bss_info_11887 ieee80211_rx_bss_info 3 11887 NULL
+kmalloc_slab_11917 kmalloc_slab 1 11917 NULL
+fs_devrw_entry_11924 fs_devrw_entry 3 11924 NULL
+bitmap_remap_11929 bitmap_remap 5 11929 NULL
+atomic_sub_return_11939 atomic_sub_return 0-1 11939 NULL
+dccp_feat_clone_sp_val_11942 dccp_feat_clone_sp_val 3 11942 NULL
+f1x_swap_interleaved_region_11970 f1x_swap_interleaved_region 0-2 11970 NULL
+atmel_read16_11981 atmel_read16 0 11981 NULL
+read_and_add_raw_conns_11987 read_and_add_raw_conns 0 11987 NULL
+ftdi_elan_total_command_size_12045 ftdi_elan_total_command_size 0 12045 NULL
+ieee80211_if_read_user_power_level_12050 ieee80211_if_read_user_power_level 3 12050 NULL
+il4965_ucode_tx_stats_read_12064 il4965_ucode_tx_stats_read 3 12064 NULL
+ptc_proc_write_12076 ptc_proc_write 3 12076 NULL
+ubifs_recover_log_leb_12079 ubifs_recover_log_leb 3 12079 NULL
+pse36_gfn_delta_12087 pse36_gfn_delta 0-1 12087 NULL
+alloc_bulk_urbs_generic_12127 alloc_bulk_urbs_generic 5 12127 NULL
+set_powered_12129 set_powered 4 12129 NULL
+nfs_writedata_alloc_12133 nfs_writedata_alloc 2 12133 NULL
+ramoops_init_prz_12134 ramoops_init_prz 5 12134 NULL
+xfs_handle_to_dentry_12135 xfs_handle_to_dentry 3 12135 NULL
+batadv_add_packet_12136 batadv_add_packet 3 12136 NULL
+rawv6_seticmpfilter_12137 rawv6_seticmpfilter 5 12137 NULL
+vmw_fifo_reserve_12141 vmw_fifo_reserve 2 12141 NULL
+get_idx_gc_leb_12148 get_idx_gc_leb 0 12148 NULL
+btmrvl_sdio_host_to_card_12152 btmrvl_sdio_host_to_card 3 12152 NULL
+vmbus_open_12154 vmbus_open 2-3 12154 NULL
+wil_rxdesc_phy_length_12165 wil_rxdesc_phy_length 0 12165 NULL
+dma_memcpy_to_iovec_12173 dma_memcpy_to_iovec 5 12173 NULL
+ddp_make_gl_12179 ddp_make_gl 1 12179 NULL
+compat_do_arpt_set_ctl_12184 compat_do_arpt_set_ctl 4 12184 NULL
+ip_generic_getfrag_12187 ip_generic_getfrag 3-4 12187 NULL
+bl_is_sector_init_12199 bl_is_sector_init 2 12199 NULL
+free_initrd_mem_12203 free_initrd_mem 1 12203 NULL
+receive_copy_12216 receive_copy 3 12216 NULL
+snd_pcm_kernel_ioctl_12219 snd_pcm_kernel_ioctl 0 12219 NULL
+fuse_get_req_12221 fuse_get_req 2 12221 NULL nohasharray
+aat2870_reg_read_file_12221 aat2870_reg_read_file 3 12221 &fuse_get_req_12221
+__alloc_bootmem_low_nopanic_12235 __alloc_bootmem_low_nopanic 1-2 12235 NULL
+ib_uverbs_unmarshall_recv_12251 ib_uverbs_unmarshall_recv 5 12251 NULL
+ath_descdma_setup_12257 ath_descdma_setup 5 12257 NULL
+shash_compat_setkey_12267 shash_compat_setkey 3 12267 NULL
+add_sctp_bind_addr_12269 add_sctp_bind_addr 3 12269 NULL
+note_last_dentry_12285 note_last_dentry 3 12285 NULL
+roundup_to_multiple_of_64_12288 roundup_to_multiple_of_64 0-1 12288 NULL nohasharray
+il_dbgfs_nvm_read_12288 il_dbgfs_nvm_read 3 12288 &roundup_to_multiple_of_64_12288
+vxge_get_num_vfs_12302 vxge_get_num_vfs 0 12302 NULL
+tipc_msg_build_12326 tipc_msg_build 4 12326 NULL
+pcbit_writecmd_12332 pcbit_writecmd 2 12332 NULL
+mptctl_ioctl_12355 mptctl_ioctl 2 12355 NULL
+paging32_walk_addr_12359 paging32_walk_addr 3 12359 NULL
+__nf_ct_ext_add_length_12364 __nf_ct_ext_add_length 3 12364 NULL
+xfs_iext_inline_to_direct_12384 xfs_iext_inline_to_direct 2 12384 NULL
+btrfs_file_extent_ram_bytes_12391 btrfs_file_extent_ram_bytes 0 12391 NULL
+ieee80211_if_read_num_mcast_sta_12419 ieee80211_if_read_num_mcast_sta 3 12419 NULL
+skb_do_copy_data_nocache_12465 skb_do_copy_data_nocache 5 12465 NULL
+qla4_82xx_pci_mem_write_direct_12479 qla4_82xx_pci_mem_write_direct 2 12479 NULL
+x25_sendmsg_12487 x25_sendmsg 4 12487 NULL
+rtllib_auth_challenge_12493 rtllib_auth_challenge 3 12493 NULL
+fnic_trace_ctrl_read_12497 fnic_trace_ctrl_read 3 12497 NULL
+nfs_readdir_make_qstr_12509 nfs_readdir_make_qstr 3 12509 NULL
+qib_alloc_fast_reg_mr_12526 qib_alloc_fast_reg_mr 2 12526 NULL
+kvm_setup_async_pf_12555 kvm_setup_async_pf 3 12555 NULL
+ib_umem_get_12557 ib_umem_get 2-3 12557 NULL
+hvc_alloc_12579 hvc_alloc 4 12579 NULL
+snd_pcm_plugin_alloc_12580 snd_pcm_plugin_alloc 2 12580 NULL
+macvtap_compat_ioctl_12587 macvtap_compat_ioctl 3 12587 NULL
+pcpu_extend_area_map_12589 pcpu_extend_area_map 2 12589 NULL
+ipv6_get_l4proto_12600 ipv6_get_l4proto 2 12600 NULL
+vhci_put_user_12604 vhci_put_user 4 12604 NULL
+fc_fcp_frame_alloc_12624 fc_fcp_frame_alloc 2 12624 NULL
+pwr_rcvd_awake_bcns_cnt_read_12632 pwr_rcvd_awake_bcns_cnt_read 3 12632 NULL
+ctrl_cdev_compat_ioctl_12634 ctrl_cdev_compat_ioctl 3 12634 NULL
+pn_sendmsg_12640 pn_sendmsg 4 12640 NULL
+wb_create_12651 wb_create 1 12651 NULL
+ocfs2_read_block_12659 ocfs2_read_block 0 12659 NULL
+sel_read_class_12669 sel_read_class 3 12669 NULL nohasharray
+sparse_mem_maps_populate_node_12669 sparse_mem_maps_populate_node 4 12669 &sel_read_class_12669
+ieee80211_if_read_num_buffered_multicast_12716 ieee80211_if_read_num_buffered_multicast 3 12716 NULL
+ivtv_write_12721 ivtv_write 3 12721 NULL
+key_rx_spec_read_12736 key_rx_spec_read 3 12736 NULL
+__videobuf_alloc_cached_12740 __videobuf_alloc_cached 1 12740 NULL
+ieee80211_if_read_dot11MeshMaxRetries_12756 ieee80211_if_read_dot11MeshMaxRetries 3 12756 NULL
+listxattr_12769 listxattr 3 12769 NULL
+sctp_ssnmap_init_12772 sctp_ssnmap_init 2-3 12772 NULL
+ieee80211_rx_mgmt_beacon_12780 ieee80211_rx_mgmt_beacon 3 12780 NULL
+platform_create_bundle_12785 platform_create_bundle 4-6 12785 NULL
+scsi_adjust_queue_depth_12802 scsi_adjust_queue_depth 3 12802 NULL
+xfs_inumbers_fmt_12817 xfs_inumbers_fmt 3 12817 NULL
+readq_12825 readq 0 12825 NULL
+TSS_authhmac_12839 TSS_authhmac 3 12839 NULL
+spidev_sync_12842 spidev_sync 0 12842 NULL nohasharray
+ath6kl_wmi_add_wow_pattern_cmd_12842 ath6kl_wmi_add_wow_pattern_cmd 4 12842 &spidev_sync_12842
+spidev_ioctl_12846 spidev_ioctl 2 12846 NULL
+get_leb_cnt_12892 get_leb_cnt 0-2 12892 NULL
+ocfs2_hamming_encode_block_12904 ocfs2_hamming_encode_block 2 12904 NULL
+get_virtual_node_size_12908 get_virtual_node_size 0 12908 NULL
+rds_pages_in_vec_12922 rds_pages_in_vec 0 12922 NULL
+ci_ll_init_12930 ci_ll_init 3 12930 NULL
+do_inode_permission_12946 do_inode_permission 0 12946 NULL
+bm_status_write_12964 bm_status_write 3 12964 NULL
+_drbd_md_first_sector_12984 _drbd_md_first_sector 0 12984 NULL
+raid56_parity_recover_12987 raid56_parity_recover 5 12987 NULL
+acpi_tb_install_table_12988 acpi_tb_install_table 1 12988 NULL
+TransmitTcb_12989 TransmitTcb 4 12989 NULL
+sk_peek_offset_12991 sk_peek_offset 0 12991 NULL
+subsystem_filter_write_13022 subsystem_filter_write 3 13022 NULL
+generic_segment_checks_13041 generic_segment_checks 0 13041 NULL
+ocfs2_write_begin_13045 ocfs2_write_begin 3-4 13045 NULL
+__dn_setsockopt_13060 __dn_setsockopt 5 13060 NULL
+irq_set_chip_and_handler_13088 irq_set_chip_and_handler 1 13088 NULL
+xattr_getsecurity_13090 xattr_getsecurity 0 13090 NULL
+blk_rq_map_sg_13092 blk_rq_map_sg 0 13092 NULL
+mb_find_next_zero_bit_13100 mb_find_next_zero_bit 2-3 13100 NULL
+ubifs_compat_ioctl_13108 ubifs_compat_ioctl 3 13108 NULL
+snd_rme96_playback_copy_13111 snd_rme96_playback_copy 5 13111 NULL
+xen_allocate_irq_dynamic_13116 xen_allocate_irq_dynamic 0 13116 NULL
+bfad_debugfs_read_13119 bfad_debugfs_read 3 13119 NULL
+blk_update_request_13146 blk_update_request 3 13146 NULL
+caif_stream_recvmsg_13173 caif_stream_recvmsg 4 13173 NULL
+pwr_disable_ps_read_13176 pwr_disable_ps_read 3 13176 NULL
+ucs2_strlen_13178 ucs2_strlen 0 13178 NULL
+dgrp_net_ioctl_13183 dgrp_net_ioctl 2 13183 NULL
+create_trace_uprobe_13184 create_trace_uprobe 1 13184 NULL
+compat_put_ulong_13186 compat_put_ulong 1 13186 NULL
+__cmpxchg64_13187 __cmpxchg64 0 13187 NULL
+comedi_read_13199 comedi_read 3 13199 NULL
+mmc_ext_csd_read_13205 mmc_ext_csd_read 3 13205 NULL
+__nodes_fold_13215 __nodes_fold 4 13215 NULL
+svm_msrpm_offset_13220 svm_msrpm_offset 0-1 13220 NULL
+fnic_trace_ctrl_write_13229 fnic_trace_ctrl_write 3 13229 NULL
+asix_read_cmd_13245 asix_read_cmd 5 13245 NULL
+fw_download_code_13249 fw_download_code 3 13249 NULL nohasharray
+kvm_lapic_enable_pv_eoi_13249 kvm_lapic_enable_pv_eoi 2 13249 &fw_download_code_13249
+init_tid_tabs_13252 init_tid_tabs 2-3-4 13252 NULL
+hostap_80211_get_hdrlen_13255 hostap_80211_get_hdrlen 0 13255 NULL
+bio_integrity_trim_13259 bio_integrity_trim 3 13259 NULL
+c4iw_reg_user_mr_13269 c4iw_reg_user_mr 2-3 13269 NULL
+carl9170_rx_13272 carl9170_rx 3 13272 NULL
+pmcraid_notify_aen_13274 pmcraid_notify_aen 3 13274 NULL
+il4965_stats_flag_13281 il4965_stats_flag 0-3 13281 NULL
+lpfc_idiag_mbxacc_get_setup_13282 lpfc_idiag_mbxacc_get_setup 0 13282 NULL
+platform_device_add_resources_13289 platform_device_add_resources 3 13289 NULL
+i915_drop_caches_write_13308 i915_drop_caches_write 3 13308 NULL
+us122l_ctl_msg_13330 us122l_ctl_msg 8 13330 NULL
+__clone_and_map_data_bio_13334 __clone_and_map_data_bio 4-8 13334 NULL
+kvm_read_nested_guest_page_13337 kvm_read_nested_guest_page 5-2 13337 NULL
+cache_ctr_13364 cache_ctr 2 13364 NULL
+mthca_alloc_mtt_range_13371 mthca_alloc_mtt_range 2 13371 NULL
+iso_sched_alloc_13377 iso_sched_alloc 1 13377 NULL nohasharray
+wep_key_not_found_read_13377 wep_key_not_found_read 3 13377 &iso_sched_alloc_13377
+carl9170_rx_untie_data_13405 carl9170_rx_untie_data 3 13405 NULL
+sky2_receive_13407 sky2_receive 2 13407 NULL
+netxen_alloc_sds_rings_13417 netxen_alloc_sds_rings 2 13417 NULL
+keyring_read_13438 keyring_read 3 13438 NULL
+sctp_setsockopt_peer_primary_addr_13440 sctp_setsockopt_peer_primary_addr 3 13440 NULL nohasharray
+set_tap_pwup_pfs_13440 set_tap_pwup_pfs 3 13440 &sctp_setsockopt_peer_primary_addr_13440
+ath6kl_cfg80211_connect_event_13443 ath6kl_cfg80211_connect_event 8-9-7 13443 NULL
+mthca_buddy_alloc_13454 mthca_buddy_alloc 2 13454 NULL
+ocfs2_align_bytes_to_blocks_13512 ocfs2_align_bytes_to_blocks 2 13512 NULL
+core_status_13515 core_status 4 13515 NULL
+smk_write_mapped_13519 smk_write_mapped 3 13519 NULL
+bm_init_13529 bm_init 2 13529 NULL
+non_atomic_pte_lookup_13540 non_atomic_pte_lookup 2 13540 NULL
+ieee80211_if_read_ap_power_level_13558 ieee80211_if_read_ap_power_level 3 13558 NULL
+ubifs_get_idx_gc_leb_13566 ubifs_get_idx_gc_leb 0 13566 NULL
+sys_madvise_13569 sys_madvise 1 13569 NULL
+read_file_antenna_13574 read_file_antenna 3 13574 NULL
+cache_write_13589 cache_write 3 13589 NULL
+mpt_lan_receive_post_turbo_13592 mpt_lan_receive_post_turbo 2 13592 NULL
+aac_sa_ioremap_13596 aac_sa_ioremap 2 13596 NULL nohasharray
+irias_new_octseq_value_13596 irias_new_octseq_value 2 13596 &aac_sa_ioremap_13596
+usb_dump_interface_descriptor_13603 usb_dump_interface_descriptor 0 13603 NULL
+swap_cgroup_swapon_13614 swap_cgroup_swapon 2 13614 NULL
+wm8994_bulk_write_13615 wm8994_bulk_write 2-3 13615 NULL
+pmcraid_get_minor_13619 pmcraid_get_minor 0 13619 NULL
+iio_device_add_event_sysfs_13627 iio_device_add_event_sysfs 0 13627 NULL
+packet_snd_13634 packet_snd 3 13634 NULL
+blk_msg_write_13655 blk_msg_write 3 13655 NULL
+cache_downcall_13666 cache_downcall 3 13666 NULL
+fw_iso_buffer_alloc_13704 fw_iso_buffer_alloc 2 13704 NULL
+audit_unpack_string_13748 audit_unpack_string 3 13748 NULL
+ufs_dtog_13750 ufs_dtog 0-2 13750 NULL
+ieee802154_alloc_device_13767 ieee802154_alloc_device 1 13767 NULL
+fb_sys_read_13778 fb_sys_read 3 13778 NULL
+ath6kl_mgmt_powersave_ap_13791 ath6kl_mgmt_powersave_ap 6 13791 NULL
+random_read_13815 random_read 3 13815 NULL
+hsi_register_board_info_13820 hsi_register_board_info 2 13820 NULL
+evdev_ioctl_compat_13851 evdev_ioctl_compat 2-3 13851 NULL
+compat_ip_setsockopt_13870 compat_ip_setsockopt 5 13870 NULL nohasharray
+alloc_trace_uprobe_13870 alloc_trace_uprobe 3 13870 &compat_ip_setsockopt_13870
+qp_memcpy_to_queue_13886 qp_memcpy_to_queue 2-5 13886 NULL
+snd_pcm_aio_read_13900 snd_pcm_aio_read 3 13900 NULL
+ext3_xattr_block_get_13936 ext3_xattr_block_get 0 13936 NULL
+ieee80211_if_read_dot11MeshForwarding_13940 ieee80211_if_read_dot11MeshForwarding 3 13940 NULL nohasharray
+ocfs2_xa_value_truncate_13940 ocfs2_xa_value_truncate 2 13940 &ieee80211_if_read_dot11MeshForwarding_13940
+iwl_dbgfs_protection_mode_read_13943 iwl_dbgfs_protection_mode_read 3 13943 NULL
+compat_chaninfo_13945 compat_chaninfo 2 13945 NULL
+ieee80211_if_read_min_discovery_timeout_13946 ieee80211_if_read_min_discovery_timeout 3 13946 NULL
+lpfc_idiag_queacc_read_13950 lpfc_idiag_queacc_read 3 13950 NULL
+snd_pcm_plug_slave_size_13967 snd_pcm_plug_slave_size 0-2 13967 NULL
+com90xx_found_13974 com90xx_found 3 13974 NULL
+qcam_read_13977 qcam_read 3 13977 NULL
+dsp_read_13980 dsp_read 2 13980 NULL
+bm_block_bits_13981 bm_block_bits 0 13981 NULL nohasharray
+dvb_demux_read_13981 dvb_demux_read 3 13981 &bm_block_bits_13981
+btrfs_get_blocks_direct_14016 btrfs_get_blocks_direct 2 14016 NULL
+_rtl92s_firmware_downloadcode_14021 _rtl92s_firmware_downloadcode 3 14021 NULL
+dvb_usercopy_14036 dvb_usercopy 2 14036 NULL
+read_def_modal_eeprom_14041 read_def_modal_eeprom 3 14041 NULL
+ieee80211_if_fmt_aid_14055 ieee80211_if_fmt_aid 3 14055 NULL
+sta_agg_status_read_14058 sta_agg_status_read 3 14058 NULL
+i915_drop_caches_read_14060 i915_drop_caches_read 3 14060 NULL
+do_proc_readlink_14096 do_proc_readlink 3 14096 NULL
+compat_sys_pselect6_14105 compat_sys_pselect6 1 14105 NULL
+nlmsg_len_14115 nlmsg_len 0 14115 NULL
+vfio_fops_compat_ioctl_14130 vfio_fops_compat_ioctl 3 14130 NULL
+ntfs_rl_replace_14136 ntfs_rl_replace 2-4 14136 NULL
+em_canid_change_14150 em_canid_change 3 14150 NULL
+gsm_dlci_data_14155 gsm_dlci_data 3 14155 NULL
+print_input_mask_14168 print_input_mask 3-0 14168 NULL
+ocfs2_xattr_value_truncate_14183 ocfs2_xattr_value_truncate 3 14183 NULL
+alloc_async_14208 alloc_async 1 14208 NULL
+sys_kexec_load_14222 sys_kexec_load 2 14222 NULL
+ieee80211_if_write_uapsd_max_sp_len_14233 ieee80211_if_write_uapsd_max_sp_len 3 14233 NULL
+dma_declare_coherent_memory_14244 dma_declare_coherent_memory 4-2 14244 NULL
+snd_soc_hw_bulk_write_raw_14245 snd_soc_hw_bulk_write_raw 2-4 14245 NULL
+reiserfs_compat_ioctl_14265 reiserfs_compat_ioctl 3 14265 NULL
+ath6kl_connect_event_14267 ath6kl_connect_event 8-9-7 14267 NULL
+add_numbered_child_14273 add_numbered_child 5 14273 NULL
+OS_mem_token_alloc_14276 OS_mem_token_alloc 1 14276 NULL
+snd_seq_oss_readq_new_14283 snd_seq_oss_readq_new 2 14283 NULL
+rr_status_14293 rr_status 5 14293 NULL
+read_default_ldt_14302 read_default_ldt 2 14302 NULL
+oo_objects_14319 oo_objects 0 14319 NULL
+p9_client_zc_rpc_14345 p9_client_zc_rpc 7 14345 NULL
+scsi2int_14358 scsi2int 0 14358 NULL
+snd_pcm_lib_readv_14363 snd_pcm_lib_readv 0-3 14363 NULL
+acpi_get_override_irq_14381 acpi_get_override_irq 1 14381 NULL
+ath6kl_regdump_read_14393 ath6kl_regdump_read 3 14393 NULL
+smk_write_onlycap_14400 smk_write_onlycap 3 14400 NULL
+mtd_concat_create_14416 mtd_concat_create 2 14416 NULL
+get_kcore_size_14425 get_kcore_size 0 14425 NULL
+check_lpt_crc_14442 check_lpt_crc 0 14442 NULL
+block_size_14443 block_size 0 14443 NULL
+ci13xxx_add_device_14456 ci13xxx_add_device 3 14456 NULL
+snd_emu10k1_proc_spdif_status_14457 snd_emu10k1_proc_spdif_status 4-5 14457 NULL
+udplite_getfrag_14479 udplite_getfrag 3-4 14479 NULL
+ieee80211_if_read_dot11MeshGateAnnouncementProtocol_14486 ieee80211_if_read_dot11MeshGateAnnouncementProtocol 3 14486 NULL
+ocfs2_debug_read_14507 ocfs2_debug_read 3 14507 NULL
+dataflash_read_user_otp_14536 dataflash_read_user_otp 2-3 14536 NULL nohasharray
+ep0_write_14536 ep0_write 3 14536 &dataflash_read_user_otp_14536
+picolcd_debug_eeprom_read_14549 picolcd_debug_eeprom_read 3 14549 NULL
+drm_vmalloc_dma_14550 drm_vmalloc_dma 1 14550 NULL
+usb_dump_desc_14553 usb_dump_desc 0 14553 NULL
+qp_host_alloc_queue_14566 qp_host_alloc_queue 1 14566 NULL
+remap_to_origin_then_cache_14583 remap_to_origin_then_cache 3 14583 NULL
+idmap_pipe_downcall_14591 idmap_pipe_downcall 3 14591 NULL
+ceph_osdc_alloc_request_14597 ceph_osdc_alloc_request 3 14597 NULL
+ocfs2_trim_group_14641 ocfs2_trim_group 4-3 14641 NULL
+dbJoin_14644 dbJoin 0 14644 NULL
+profile_replace_14652 profile_replace 3 14652 NULL
+pipeline_enc_tx_stat_fifo_int_read_14680 pipeline_enc_tx_stat_fifo_int_read 3 14680 NULL
+ieee80211_if_fmt_rc_rateidx_mask_2ghz_14683 ieee80211_if_fmt_rc_rateidx_mask_2ghz 3 14683 NULL
+tsi148_master_set_14685 tsi148_master_set 4 14685 NULL
+u_audio_playback_14709 u_audio_playback 3 14709 NULL
+get_bio_block_14714 get_bio_block 0 14714 NULL
+vfd_write_14717 vfd_write 3 14717 NULL
+__blk_end_request_14729 __blk_end_request 3 14729 NULL
+raid1_resize_14740 raid1_resize 2 14740 NULL
+btrfs_inode_extref_name_len_14752 btrfs_inode_extref_name_len 0 14752 NULL
+rx_rx_cmplt_read_14753 rx_rx_cmplt_read 3 14753 NULL
+qla82xx_pci_mem_write_2M_14765 qla82xx_pci_mem_write_2M 2 14765 NULL
+regmap_range_read_file_14775 regmap_range_read_file 3 14775 NULL
+sta_dev_read_14782 sta_dev_read 3 14782 NULL
+ext4_kvmalloc_14796 ext4_kvmalloc 1 14796 NULL
+hpet_readl_14801 hpet_readl 0 14801 NULL nohasharray
+snd_als300_gcr_read_14801 snd_als300_gcr_read 0 14801 &hpet_readl_14801
+bcma_scan_read32_14802 bcma_scan_read32 0 14802 NULL
+__mutex_fastpath_lock_retval_14844 __mutex_fastpath_lock_retval 0 14844 NULL
+mrp_attr_create_14853 mrp_attr_create 3 14853 NULL
+lcd_write_14857 lcd_write 3 14857 NULL nohasharray
+__krealloc_14857 __krealloc 2 14857 &lcd_write_14857
+get_user_cpu_mask_14861 get_user_cpu_mask 2 14861 NULL
+sriov_enable_migration_14889 sriov_enable_migration 2 14889 NULL
+acpi_os_allocate_14892 acpi_os_allocate 1 14892 NULL
+unifi_read_14899 unifi_read 3 14899 NULL
+krealloc_14908 krealloc 2 14908 NULL
+regmap_irq_get_virq_14910 regmap_irq_get_virq 2 14910 NULL
+__arch_hweight64_14923 __arch_hweight64 0 14923 NULL nohasharray
+qp_memcpy_to_queue_iov_14923 qp_memcpy_to_queue_iov 2-5 14923 &__arch_hweight64_14923
+ocfs2_expand_nonsparse_inode_14936 ocfs2_expand_nonsparse_inode 3-4 14936 NULL
+queue_cnt_14951 queue_cnt 0 14951 NULL
+videobuf_read_stream_14956 videobuf_read_stream 3 14956 NULL
+mce_flush_rx_buffer_14976 mce_flush_rx_buffer 2 14976 NULL
+setkey_14987 setkey 3 14987 NULL nohasharray
+gpio_twl4030_write_14987 gpio_twl4030_write 1 14987 &setkey_14987
+vmap_15025 vmap 2 15025 NULL
+blk_integrity_tuple_size_15027 blk_integrity_tuple_size 0 15027 NULL
+irq_get_next_irq_15053 irq_get_next_irq 1 15053 NULL
+cld_pipe_downcall_15058 cld_pipe_downcall 3 15058 NULL
+ieee80211_if_read_uapsd_max_sp_len_15067 ieee80211_if_read_uapsd_max_sp_len 3 15067 NULL
+nfs4_write_cached_acl_15070 nfs4_write_cached_acl 4 15070 NULL
+ntfs_copy_from_user_15072 ntfs_copy_from_user 3-5 15072 NULL
+hex_dump_to_buffer_15121 hex_dump_to_buffer 6 15121 NULL
+start_port_15124 start_port 0 15124 NULL
+memchr_15126 memchr 0 15126 NULL
+ipwireless_ppp_mru_15153 ipwireless_ppp_mru 0 15153 NULL
+self_check_not_bad_15175 self_check_not_bad 0 15175 NULL
+iscsi_create_endpoint_15193 iscsi_create_endpoint 1 15193 NULL
+reserve_resources_15194 reserve_resources 3 15194 NULL
+bfad_debugfs_write_regrd_15218 bfad_debugfs_write_regrd 3 15218 NULL
+il_dbgfs_rx_stats_read_15243 il_dbgfs_rx_stats_read 3 15243 NULL
+compat_raw_ioctl_15290 compat_raw_ioctl 3 15290 NULL
+sys_connect_15291 sys_connect 3 15291 NULL nohasharray
+xlate_dev_mem_ptr_15291 xlate_dev_mem_ptr 1 15291 &sys_connect_15291
+arch_enable_uv_irq_15294 arch_enable_uv_irq 2 15294 NULL
+acpi_ev_create_gpe_block_15297 acpi_ev_create_gpe_block 5 15297 NULL
+tpm_tis_init_15304 tpm_tis_init 2-3 15304 NULL
+fcoe_ctlr_send_keep_alive_15308 fcoe_ctlr_send_keep_alive 3 15308 NULL
+__ocfs2_remove_xattr_range_15330 __ocfs2_remove_xattr_range 4-5-3 15330 NULL
+kovaplus_sysfs_read_15337 kovaplus_sysfs_read 6 15337 NULL
+ioread16_15342 ioread16 0 15342 NULL
+alloc_ring_15345 alloc_ring 2-4 15345 NULL
+acpi_ut_create_string_object_15360 acpi_ut_create_string_object 1 15360 NULL
+graph_depth_read_15371 graph_depth_read 3 15371 NULL
+compat_sys_process_vm_readv_15374 compat_sys_process_vm_readv 3-5 15374 NULL
+fq_codel_zalloc_15378 fq_codel_zalloc 1 15378 NULL
+domain_flush_pages_15379 domain_flush_pages 2-3 15379 NULL
+alloc_fddidev_15382 alloc_fddidev 1 15382 NULL
+btrfs_level_size_15392 btrfs_level_size 0 15392 NULL
+pipeline_csum_to_rx_xfer_swi_read_15403 pipeline_csum_to_rx_xfer_swi_read 3 15403 NULL
+get_modalias_15406 get_modalias 2 15406 NULL
+dm_cache_resize_15422 dm_cache_resize 2 15422 NULL
+__videobuf_copy_to_user_15423 __videobuf_copy_to_user 4 15423 NULL
+tcp_mtu_to_mss_15438 tcp_mtu_to_mss 2 15438 NULL
+hpsa_change_queue_depth_15449 hpsa_change_queue_depth 2 15449 NULL
+memweight_15450 memweight 2 15450 NULL
+vmalloc_15464 vmalloc 1 15464 NULL
+zd_chip_is_zd1211b_15518 zd_chip_is_zd1211b 0 15518 NULL
+da9052_bat_irq_15533 da9052_bat_irq 1 15533 NULL
+p9_check_zc_errors_15534 p9_check_zc_errors 4 15534 NULL
+ql_process_mac_rx_page_15543 ql_process_mac_rx_page 4 15543 NULL
+ieee80211_amsdu_to_8023s_15561 ieee80211_amsdu_to_8023s 5 15561 NULL
+persistent_status_15574 persistent_status 4 15574 NULL
+bnx2fc_process_unsol_compl_15576 bnx2fc_process_unsol_compl 2 15576 NULL
+vme_user_write_15587 vme_user_write 3 15587 NULL
+ocfs2_truncate_rec_15595 ocfs2_truncate_rec 7 15595 NULL
+sx150x_install_irq_chip_15609 sx150x_install_irq_chip 3 15609 NULL
+iommu_device_max_index_15620 iommu_device_max_index 0-3-2-1 15620 NULL nohasharray
+compat_fillonedir_15620 compat_fillonedir 3 15620 &iommu_device_max_index_15620
+set_dis_tap_pfs_15621 set_dis_tap_pfs 3 15621 NULL
+proc_loginuid_read_15631 proc_loginuid_read 3 15631 NULL
+tomoyo_scan_bprm_15642 tomoyo_scan_bprm 2-4 15642 NULL nohasharray
+sk_memory_allocated_add_15642 sk_memory_allocated_add 2 15642 &tomoyo_scan_bprm_15642 nohasharray
+pipeline_hs_tx_stat_fifo_int_read_15642 pipeline_hs_tx_stat_fifo_int_read 3 15642 &sk_memory_allocated_add_15642
+fs_path_add_15648 fs_path_add 3 15648 NULL
+xsd_read_15653 xsd_read 3 15653 NULL
+compat_sys_fcntl_15654 compat_sys_fcntl 3 15654 NULL
+unix_bind_15668 unix_bind 3 15668 NULL
+dm_read_15674 dm_read 3 15674 NULL
+pstore_mkfile_15675 pstore_mkfile 6 15675 NULL
+uf_sme_queue_message_15697 uf_sme_queue_message 3 15697 NULL
+ocfs2_split_tree_15716 ocfs2_split_tree 5 15716 NULL
+HiSax_readstatus_15752 HiSax_readstatus 2 15752 NULL
+bitmap_search_next_usable_block_15762 bitmap_search_next_usable_block 3-1 15762 NULL
+do_test_15766 do_test 1 15766 NULL
+set_std_nic_pfs_15792 set_std_nic_pfs 3 15792 NULL
+smk_read_direct_15803 smk_read_direct 3 15803 NULL
+snd_pcm_ioctl_compat_15804 snd_pcm_ioctl_compat 3 15804 NULL
+gx1_read_conf_reg_15817 gx1_read_conf_reg 0 15817 NULL nohasharray
+nameseq_list_15817 nameseq_list 3 15817 &gx1_read_conf_reg_15817 nohasharray
+gnttab_expand_15817 gnttab_expand 1 15817 &nameseq_list_15817
+afs_proc_rootcell_write_15822 afs_proc_rootcell_write 3 15822 NULL
+brcmf_sdbrcm_died_dump_15841 brcmf_sdbrcm_died_dump 3 15841 NULL
+table_size_15851 table_size 0-1-2 15851 NULL
+ubi_io_write_15870 ubi_io_write 5-4 15870 NULL nohasharray
+media_entity_init_15870 media_entity_init 2-4 15870 &ubi_io_write_15870
+__mptctl_ioctl_15875 __mptctl_ioctl 2 15875 NULL
+nfs_map_group_to_gid_15892 nfs_map_group_to_gid 3 15892 NULL
+native_read_msr_15905 native_read_msr 0 15905 NULL
+parse_audio_stream_data_15937 parse_audio_stream_data 3 15937 NULL
+power_read_15939 power_read 3 15939 NULL
+lpfc_idiag_drbacc_read_15948 lpfc_idiag_drbacc_read 3 15948 NULL
+snd_pcm_lib_read_transfer_15952 snd_pcm_lib_read_transfer 4-2-5 15952 NULL
+remap_pci_mem_15966 remap_pci_mem 1-2 15966 NULL
+frame_alloc_15981 frame_alloc 4 15981 NULL
+alloc_vm_area_15989 alloc_vm_area 1 15989 NULL
+hdpvr_register_videodev_16010 hdpvr_register_videodev 3 16010 NULL
+viafb_vt1636_proc_write_16018 viafb_vt1636_proc_write 3 16018 NULL
+got_frame_16028 got_frame 2 16028 NULL
+read_file_spectral_period_16057 read_file_spectral_period 3 16057 NULL
+isr_tx_exch_complete_read_16103 isr_tx_exch_complete_read 3 16103 NULL
+dma_tx_requested_read_16110 dma_tx_requested_read 3 16110 NULL nohasharray
+isr_hw_pm_mode_changes_read_16110 isr_hw_pm_mode_changes_read 3 16110 &dma_tx_requested_read_16110
+irq_set_chip_and_handler_name_16111 irq_set_chip_and_handler_name 1 16111 NULL
+snd_dma_pointer_16126 snd_dma_pointer 0-2 16126 NULL
+compat_sys_select_16131 compat_sys_select 1 16131 NULL
+fsm_init_16134 fsm_init 2 16134 NULL
+hysdn_rx_netpkt_16136 hysdn_rx_netpkt 3 16136 NULL
+ext4_xattr_block_get_16148 ext4_xattr_block_get 0 16148 NULL
+bnx2i_get_cid_num_16166 bnx2i_get_cid_num 0 16166 NULL
+mapping_level_16188 mapping_level 2 16188 NULL
+cipso_v4_map_cat_rng_hton_16203 cipso_v4_map_cat_rng_hton 0 16203 NULL
+create_table_16213 create_table 2 16213 NULL
+atomic_read_file_16227 atomic_read_file 3 16227 NULL
+BcmGetSectionValStartOffset_16235 BcmGetSectionValStartOffset 0 16235 NULL
+swiotlb_sync_single_for_device_16247 swiotlb_sync_single_for_device 2 16247 NULL nohasharray
+btrfs_dev_extent_chunk_offset_16247 btrfs_dev_extent_chunk_offset 0 16247 &swiotlb_sync_single_for_device_16247
+mark_written_sectors_16262 mark_written_sectors 2 16262 NULL
+reiserfs_acl_count_16265 reiserfs_acl_count 0-1 16265 NULL
+set_disc_pfs_16270 set_disc_pfs 3 16270 NULL
+mq_force_mapping_16277 mq_force_mapping 2 16277 NULL
+ocfs2_xattr_bucket_value_truncate_16279 ocfs2_xattr_bucket_value_truncate 4 16279 NULL
+drbd_setsockopt_16280 drbd_setsockopt 5 16280 NULL nohasharray
+nand_bch_init_16280 nand_bch_init 3-2 16280 &drbd_setsockopt_16280
+account_16283 account 0-2-4 16283 NULL nohasharray
+mirror_status_16283 mirror_status 5 16283 &account_16283
+retry_instruction_16285 retry_instruction 2 16285 NULL
+stk_allocate_buffers_16291 stk_allocate_buffers 2 16291 NULL
+rsc_mgr_init_16299 rsc_mgr_init 3 16299 NULL
+wb_map_16301 wb_map 2 16301 NULL
+vmw_cursor_update_image_16332 vmw_cursor_update_image 3-4 16332 NULL
+total_ps_buffered_read_16365 total_ps_buffered_read 3 16365 NULL
+iscsi_tcp_conn_setup_16376 iscsi_tcp_conn_setup 2 16376 NULL
+nl80211_send_unprot_deauth_16378 nl80211_send_unprot_deauth 4 16378 NULL
+diva_os_malloc_16406 diva_os_malloc 2 16406 NULL
+ieee80211_if_read_tsf_16420 ieee80211_if_read_tsf 3 16420 NULL
+rxrpc_server_keyring_16431 rxrpc_server_keyring 3 16431 NULL
+netlink_change_ngroups_16457 netlink_change_ngroups 2 16457 NULL
+tracing_readme_read_16493 tracing_readme_read 3 16493 NULL
+snd_interval_max_16529 snd_interval_max 0 16529 NULL
+raid10_resize_16537 raid10_resize 2 16537 NULL
+tcp_manip_pkt_16563 tcp_manip_pkt 4 16563 NULL
+lpfc_debugfs_read_16566 lpfc_debugfs_read 3 16566 NULL
+agp_allocate_memory_wrap_16576 agp_allocate_memory_wrap 1 16576 NULL
+virt_to_scatterlist_16582 virt_to_scatterlist 2 16582 NULL
+palmas_irq_get_virq_16613 palmas_irq_get_virq 2 16613 NULL
+btrfs_get_token_32_16651 btrfs_get_token_32 0 16651 NULL
+mfd_add_devices_16668 mfd_add_devices 4 16668 NULL
+ax88179_write_cmd_async_16671 ax88179_write_cmd_async 5 16671 NULL
+arcmsr_adjust_disk_queue_depth_16756 arcmsr_adjust_disk_queue_depth 2 16756 NULL
+compat_blkdev_driver_ioctl_16769 compat_blkdev_driver_ioctl 4 16769 NULL
+blk_rq_map_user_iov_16772 blk_rq_map_user_iov 5 16772 NULL
+i2o_parm_issue_16790 i2o_parm_issue 0 16790 NULL
+get_server_iovec_16804 get_server_iovec 2 16804 NULL
+tipc_send2name_16809 tipc_send2name 6 16809 NULL
+dm_vcalloc_16814 dm_vcalloc 1-2 16814 NULL
+drm_malloc_ab_16831 drm_malloc_ab 1-2 16831 NULL
+scsi_mode_sense_16835 scsi_mode_sense 5 16835 NULL
+hfsplus_min_io_size_16859 hfsplus_min_io_size 0 16859 NULL
+alloc_idx_lebs_16872 alloc_idx_lebs 2 16872 NULL
+carl9170_debugfs_ampdu_state_read_16873 carl9170_debugfs_ampdu_state_read 3 16873 NULL
+st_write_16874 st_write 3 16874 NULL
+__kfifo_peek_n_16877 __kfifo_peek_n 0 16877 NULL
+idx_to_pfn_16919 idx_to_pfn 0 16919 NULL
+psb_unlocked_ioctl_16926 psb_unlocked_ioctl 2 16926 NULL nohasharray
+snd_gf1_mem_proc_dump_16926 snd_gf1_mem_proc_dump 5 16926 &psb_unlocked_ioctl_16926
+_sp2d_alloc_16944 _sp2d_alloc 1-2-3 16944 NULL
+squashfs_read_table_16945 squashfs_read_table 3 16945 NULL
+cfg80211_send_unprot_disassoc_16951 cfg80211_send_unprot_disassoc 3 16951 NULL
+keyctl_instantiate_key_iov_16969 keyctl_instantiate_key_iov 3 16969 NULL
+ceph_read_dir_17005 ceph_read_dir 3 17005 NULL
+copy_counters_to_user_17027 copy_counters_to_user 5 17027 NULL
+jffs2_trusted_setxattr_17048 jffs2_trusted_setxattr 4 17048 NULL
+__arch_hweight32_17060 __arch_hweight32 0 17060 NULL
+dvb_dvr_read_17073 dvb_dvr_read 3 17073 NULL
+simple_transaction_read_17076 simple_transaction_read 3 17076 NULL
+__kmalloc_reserve_17080 __kmalloc_reserve 1 17080 NULL
+carl9170_debugfs_mem_usage_read_17084 carl9170_debugfs_mem_usage_read 3 17084 NULL
+mac_address_string_17091 mac_address_string 0 17091 NULL
+entry_length_17093 entry_length 0 17093 NULL
+sys_preadv_17100 sys_preadv 3 17100 NULL
+pvr2_hdw_state_report_17121 pvr2_hdw_state_report 3 17121 NULL
+mwifiex_get_common_rates_17131 mwifiex_get_common_rates 3 17131 NULL
+nouveau_instobj_create__17144 nouveau_instobj_create_ 4 17144 NULL
+sep_read_17161 sep_read 3 17161 NULL
+befs_nls2utf_17163 befs_nls2utf 3 17163 NULL
+tx_tx_start_templates_read_17164 tx_tx_start_templates_read 3 17164 NULL
+UniStrnlen_17169 UniStrnlen 0 17169 NULL
+access_remote_vm_17189 access_remote_vm 0-2-4 17189 NULL
+driver_state_read_17194 driver_state_read 3 17194 NULL nohasharray
+iscsit_find_cmd_from_itt_or_dump_17194 iscsit_find_cmd_from_itt_or_dump 3 17194 &driver_state_read_17194
+dn_recvmsg_17213 dn_recvmsg 4 17213 NULL
+to_oblock_17254 to_oblock 0-1 17254 NULL
+unpack_value_17259 unpack_value 1 17259 NULL
+__be16_to_cpup_17261 __be16_to_cpup 0 17261 NULL
+error_error_frame_cts_nul_flid_read_17262 error_error_frame_cts_nul_flid_read 3 17262 NULL
+alloc_ep_17269 alloc_ep 1 17269 NULL
+pg_read_17276 pg_read 3 17276 NULL
+raw_recvmsg_17277 raw_recvmsg 4 17277 NULL
+hmac_sha256_17278 hmac_sha256 2 17278 NULL
+neigh_hash_grow_17283 neigh_hash_grow 2 17283 NULL
+minstrel_stats_read_17290 minstrel_stats_read 3 17290 NULL
+install_breakpoint_17292 install_breakpoint 4 17292 NULL
+ieee80211_if_fmt_dot11MeshForwarding_17301 ieee80211_if_fmt_dot11MeshForwarding 3 17301 NULL
+skb_pad_17302 skb_pad 2 17302 NULL
+mb_cache_create_17307 mb_cache_create 2 17307 NULL
+gnttab_map_frames_v2_17314 gnttab_map_frames_v2 2 17314 NULL
+ata_host_alloc_pinfo_17325 ata_host_alloc_pinfo 3 17325 NULL
+ieee80211_if_read_dot11MeshHWMPperrMinInterval_17346 ieee80211_if_read_dot11MeshHWMPperrMinInterval 3 17346 NULL
+ath6kl_wmi_send_mgmt_cmd_17347 ath6kl_wmi_send_mgmt_cmd 7 17347 NULL
+_fd_dma_mem_free_17406 _fd_dma_mem_free 1 17406 NULL
+lpfc_debugfs_dif_err_write_17424 lpfc_debugfs_dif_err_write 3 17424 NULL
+sta_connected_time_read_17435 sta_connected_time_read 3 17435 NULL
+nla_get_u32_17455 nla_get_u32 0 17455 NULL
+__ref_totlen_17461 __ref_totlen 0 17461 NULL
+compat_cmd_17465 compat_cmd 2 17465 NULL
+probe_bios_17467 probe_bios 1 17467 NULL
+probe_kernel_write_17481 probe_kernel_write 3 17481 NULL
+__alloc_session_17485 __alloc_session 2-1 17485 NULL
+TSS_rawhmac_17486 TSS_rawhmac 3 17486 NULL
+bitmap_pos_to_ord_17503 bitmap_pos_to_ord 3 17503 NULL
+__copy_to_user_17551 __copy_to_user 0-3 17551 NULL
+copy_from_user_17559 copy_from_user 3 17559 NULL
+acpi_ut_create_package_object_17594 acpi_ut_create_package_object 1 17594 NULL
+neigh_hash_alloc_17595 neigh_hash_alloc 1 17595 NULL
+rts51x_write_mem_17598 rts51x_write_mem 4 17598 NULL
+iwl_dump_nic_event_log_17601 iwl_dump_nic_event_log 0 17601 NULL
+wm8994_gpio_to_irq_17604 wm8994_gpio_to_irq 2 17604 NULL
+osst_execute_17607 osst_execute 7-6 17607 NULL
+ocfs2_mark_extent_written_17615 ocfs2_mark_extent_written 6 17615 NULL
+ieee80211_if_read_dot11MeshHWMPactivePathToRootTimeout_17618 ieee80211_if_read_dot11MeshHWMPactivePathToRootTimeout 3 17618 NULL
+twl4030_set_gpio_direction_17645 twl4030_set_gpio_direction 1 17645 NULL
+packet_setsockopt_17662 packet_setsockopt 5 17662 NULL nohasharray
+ubi_io_read_data_17662 ubi_io_read_data 0 17662 &packet_setsockopt_17662
+pwr_enable_ps_read_17686 pwr_enable_ps_read 3 17686 NULL
+gfn_to_pfn_memslot_17693 gfn_to_pfn_memslot 2 17693 NULL
+__einj_error_trigger_17707 __einj_error_trigger 1 17707 NULL nohasharray
+venus_rename_17707 venus_rename 5-4 17707 &__einj_error_trigger_17707
+exofs_read_lookup_dev_table_17733 exofs_read_lookup_dev_table 3 17733 NULL
+sctpprobe_read_17741 sctpprobe_read 3 17741 NULL
+mark_unsafe_pages_17759 mark_unsafe_pages 0 17759 NULL
+brcmf_usb_attach_17766 brcmf_usb_attach 2-3 17766 NULL
+ubifs_leb_change_17789 ubifs_leb_change 4 17789 NULL
+_snd_pcm_lib_alloc_vmalloc_buffer_17820 _snd_pcm_lib_alloc_vmalloc_buffer 2 17820 NULL
+gnet_stats_copy_app_17821 gnet_stats_copy_app 3 17821 NULL
+cipso_v4_gentag_rbm_17836 cipso_v4_gentag_rbm 0 17836 NULL
+count_leafs_17842 count_leafs 0 17842 NULL
+sisusb_send_bulk_msg_17864 sisusb_send_bulk_msg 3 17864 NULL
+alloc_sja1000dev_17868 alloc_sja1000dev 1 17868 NULL
+ray_cs_essid_proc_write_17875 ray_cs_essid_proc_write 3 17875 NULL
+orinoco_set_key_17878 orinoco_set_key 5-7 17878 NULL
+init_per_cpu_17880 init_per_cpu 1 17880 NULL
+ieee80211_if_fmt_dot11MeshMaxPeerLinks_17883 ieee80211_if_fmt_dot11MeshMaxPeerLinks 3 17883 NULL
+compat_sys_pwritev_17886 compat_sys_pwritev 3 17886 NULL
+ieee80211_if_fmt_dot11MeshHWMPRootMode_17890 ieee80211_if_fmt_dot11MeshHWMPRootMode 3 17890 NULL
+ocfs2_clusters_to_blocks_17896 ocfs2_clusters_to_blocks 0-2 17896 NULL
+recover_head_17904 recover_head 3 17904 NULL
+dccp_feat_register_sp_17914 dccp_feat_register_sp 5 17914 NULL
+xfs_buf_associate_memory_17915 xfs_buf_associate_memory 3 17915 NULL
+srp_iu_pool_alloc_17920 srp_iu_pool_alloc 2 17920 NULL
+scsi_bufflen_17933 scsi_bufflen 0 17933 NULL
+ufs_free_blocks_17963 ufs_free_blocks 2-3 17963 NULL
+calc_nr_buckets_17976 calc_nr_buckets 0 17976 NULL
+smk_write_cipso_17989 smk_write_cipso 3 17989 NULL
+gnttab_max_grant_frames_17993 gnttab_max_grant_frames 0 17993 NULL
+ext4_num_overhead_clusters_18001 ext4_num_overhead_clusters 2 18001 NULL
+pvr2_v4l2_read_18006 pvr2_v4l2_read 3 18006 NULL
+alloc_rx_desc_ring_18016 alloc_rx_desc_ring 2 18016 NULL
+fill_read_18019 fill_read 0 18019 NULL
+o2hb_highest_node_18034 o2hb_highest_node 2 18034 NULL
+cryptd_alloc_instance_18048 cryptd_alloc_instance 2-3 18048 NULL
+find_next_inuse_18051 find_next_inuse 2-3 18051 NULL
+ddebug_proc_write_18055 ddebug_proc_write 3 18055 NULL
+lua_sysfs_read_18062 lua_sysfs_read 6 18062 NULL
+hex_byte_pack_18064 hex_byte_pack 0 18064 NULL
+packet_came_18072 packet_came 3 18072 NULL
+kvm_read_guest_page_18074 kvm_read_guest_page 5-2 18074 NULL
+get_vm_area_18080 get_vm_area 1 18080 NULL
+mpi_alloc_18094 mpi_alloc 1 18094 NULL
+dfs_file_read_18116 dfs_file_read 3 18116 NULL
+svc_getnl_18120 svc_getnl 0 18120 NULL
+paging32_gpte_to_gfn_lvl_18131 paging32_gpte_to_gfn_lvl 0-1-2 18131 NULL
+vmw_surface_dma_size_18132 vmw_surface_dma_size 0 18132 NULL
+selinux_inode_setsecurity_18148 selinux_inode_setsecurity 4 18148 NULL
+_has_tag_18169 _has_tag 2 18169 NULL
+pccard_store_cis_18176 pccard_store_cis 6 18176 NULL
+orinoco_add_extscan_result_18207 orinoco_add_extscan_result 3 18207 NULL
+gsm_control_message_18209 gsm_control_message 4 18209 NULL
+do_ipv6_setsockopt_18215 do_ipv6_setsockopt 5 18215 NULL
+gnttab_alloc_grant_references_18240 gnttab_alloc_grant_references 1 18240 NULL
+snd_ctl_ioctl_compat_18250 snd_ctl_ioctl_compat 3 18250 NULL
+qdisc_class_hash_alloc_18262 qdisc_class_hash_alloc 1 18262 NULL
+gfs2_alloc_sort_buffer_18275 gfs2_alloc_sort_buffer 1 18275 NULL
+alloc_ring_18278 alloc_ring 2-4 18278 NULL
+find_dirty_idx_leb_18280 find_dirty_idx_leb 0 18280 NULL
+nouveau_subdev_create__18281 nouveau_subdev_create_ 7 18281 NULL nohasharray
+bio_phys_segments_18281 bio_phys_segments 0 18281 &nouveau_subdev_create__18281
+ext4_readpages_18283 ext4_readpages 4 18283 NULL
+mmc_send_bus_test_18285 mmc_send_bus_test 4 18285 NULL
+um_idi_write_18293 um_idi_write 3 18293 NULL
+nouveau_disp_create__18305 nouveau_disp_create_ 4-7 18305 NULL
+ip6ip6_err_18308 ip6ip6_err 5 18308 NULL
+vga_r_18310 vga_r 0 18310 NULL
+ecryptfs_send_message_18322 ecryptfs_send_message 2 18322 NULL
+bio_integrity_advance_18324 bio_integrity_advance 2 18324 NULL
+pwr_power_save_off_read_18355 pwr_power_save_off_read 3 18355 NULL
+xlbd_reserve_minors_18365 xlbd_reserve_minors 1-2 18365 NULL
+ep_io_18367 ep_io 0 18367 NULL
+qib_user_sdma_num_pages_18371 qib_user_sdma_num_pages 0 18371 NULL
+__video_register_device_18399 __video_register_device 3 18399 NULL
+adis16136_show_serial_18402 adis16136_show_serial 3 18402 NULL
+crystalhd_user_data_18407 crystalhd_user_data 3 18407 NULL
+usbnet_write_cmd_nopm_18426 usbnet_write_cmd_nopm 7 18426 NULL
+batadv_orig_node_add_if_18433 batadv_orig_node_add_if 2 18433 NULL
+snd_hda_get_connections_18437 snd_hda_get_connections 0 18437 NULL
+fuse_perform_write_18457 fuse_perform_write 4 18457 NULL
+regset_tls_set_18459 regset_tls_set 4 18459 NULL
+dma_alloc_from_contiguous_18466 dma_alloc_from_contiguous 3-2 18466 NULL
+pci_vpd_lrdt_size_18479 pci_vpd_lrdt_size 0 18479 NULL
+udpv6_setsockopt_18487 udpv6_setsockopt 5 18487 NULL
+snd_gus_dram_poke_18525 snd_gus_dram_poke 4 18525 NULL
+nouveau_fifo_channel_create__18530 nouveau_fifo_channel_create_ 5-6-9 18530 NULL
+seq_copy_in_user_18543 seq_copy_in_user 3 18543 NULL
+acpi_register_gsi_ioapic_18550 acpi_register_gsi_ioapic 2 18550 NULL
+sas_change_queue_depth_18555 sas_change_queue_depth 2 18555 NULL
+smk_write_rules_list_18565 smk_write_rules_list 3 18565 NULL
+debug_output_18575 debug_output 3 18575 NULL
+check_lpt_type_18577 check_lpt_type 0 18577 NULL
+__netdev_alloc_skb_18595 __netdev_alloc_skb 2 18595 NULL
+filemap_fdatawait_range_18600 filemap_fdatawait_range 0 18600 NULL
+iowarrior_write_18604 iowarrior_write 3 18604 NULL
+batadv_arp_get_type_18609 batadv_arp_get_type 3 18609 NULL
+from_buffer_18625 from_buffer 3 18625 NULL
+snd_pcm_oss_write3_18657 snd_pcm_oss_write3 0-3 18657 NULL
+ieee80211_if_fmt_rssi_threshold_18664 ieee80211_if_fmt_rssi_threshold 3 18664 NULL
+unmap_page_18665 unmap_page 2-3 18665 NULL
+xfs_iext_insert_18667 xfs_iext_insert 3 18667 NULL
+replay_log_leb_18704 replay_log_leb 3 18704 NULL
+iwl_dbgfs_rx_handlers_read_18708 iwl_dbgfs_rx_handlers_read 3 18708 NULL
+ceph_alloc_page_vector_18710 ceph_alloc_page_vector 1 18710 NULL
+ocfs2_trim_extent_18711 ocfs2_trim_extent 4-3 18711 NULL
+blk_rq_bytes_18715 blk_rq_bytes 0 18715 NULL
+snd_als4k_gcr_read_addr_18741 snd_als4k_gcr_read_addr 0 18741 NULL
+o2hb_debug_create_18744 o2hb_debug_create 4 18744 NULL
+__erst_read_to_erange_from_nvram_18748 __erst_read_to_erange_from_nvram 0 18748 NULL
+wep_packets_read_18751 wep_packets_read 3 18751 NULL
+md_compat_ioctl_18764 md_compat_ioctl 4 18764 NULL
+read_file_dump_nfcal_18766 read_file_dump_nfcal 3 18766 NULL
+ffs_epfile_read_18775 ffs_epfile_read 3 18775 NULL
+alloc_fcdev_18780 alloc_fcdev 1 18780 NULL
+fat_compat_dir_ioctl_18800 fat_compat_dir_ioctl 3 18800 NULL
+ieee80211_auth_challenge_18810 ieee80211_auth_challenge 3 18810 NULL
+madvise_hwpoison_18812 madvise_hwpoison 2 18812 NULL
+setup_ioapic_irq_18813 setup_ioapic_irq 1 18813 NULL
+sys_modify_ldt_18824 sys_modify_ldt 3 18824 NULL
+mtf_test_write_18844 mtf_test_write 3 18844 NULL
+drm_ht_create_18853 drm_ht_create 2 18853 NULL
+sctp_setsockopt_events_18862 sctp_setsockopt_events 3 18862 NULL
+ieee80211_if_read_element_ttl_18869 ieee80211_if_read_element_ttl 3 18869 NULL
+xlog_find_verify_log_record_18870 xlog_find_verify_log_record 2 18870 NULL
+___alloc_bootmem_node_18882 ___alloc_bootmem_node 2-3 18882 NULL
+width_to_agaw_18883 width_to_agaw 0-1 18883 NULL
+ceph_setxattr_18913 ceph_setxattr 4 18913 NULL
+mangle_packet_18920 mangle_packet 7-9 18920 NULL
+snapshot_write_next_18937 snapshot_write_next 0 18937 NULL
+__nla_reserve_18974 __nla_reserve 3 18974 NULL
+gfn_to_pfn_atomic_18981 gfn_to_pfn_atomic 2 18981 NULL
+find_dirtiest_idx_leb_19001 find_dirtiest_idx_leb 0 19001 NULL
+layout_in_gaps_19006 layout_in_gaps 2 19006 NULL
+huge_page_size_19008 huge_page_size 0 19008 NULL
+usbdev_compat_ioctl_19026 usbdev_compat_ioctl 3 19026 NULL
+prepare_highmem_image_19028 prepare_highmem_image 0 19028 NULL
+revalidate_19043 revalidate 2 19043 NULL
+drm_fb_helper_init_19044 drm_fb_helper_init 3-4 19044 NULL
+create_gpadl_header_19064 create_gpadl_header 2 19064 NULL
+ieee80211_key_alloc_19065 ieee80211_key_alloc 3 19065 NULL
+sys_process_vm_readv_19090 sys_process_vm_readv 3-5 19090 NULL nohasharray
+brcmf_usbdev_qinit_19090 brcmf_usbdev_qinit 2 19090 &sys_process_vm_readv_19090
+sta_last_seq_ctrl_read_19106 sta_last_seq_ctrl_read 3 19106 NULL
+cifs_readv_from_socket_19109 cifs_readv_from_socket 3 19109 NULL
+skb_gro_offset_19123 skb_gro_offset 0 19123 NULL
+ext4_inode_table_19125 ext4_inode_table 0 19125 NULL
+snd_als4k_iobase_readl_19136 snd_als4k_iobase_readl 0 19136 NULL
+alloc_irdadev_19140 alloc_irdadev 1 19140 NULL
+sleep_auth_read_19159 sleep_auth_read 3 19159 NULL
+smk_write_access2_19170 smk_write_access2 3 19170 NULL
+iwl_dbgfs_reply_tx_error_read_19205 iwl_dbgfs_reply_tx_error_read 3 19205 NULL
+vmw_unlocked_ioctl_19212 vmw_unlocked_ioctl 2 19212 NULL
+__copy_to_user_inatomic_19214 __copy_to_user_inatomic 3 19214 NULL
+dev_counters_read_19216 dev_counters_read 3 19216 NULL
+wbcir_tx_19219 wbcir_tx 3 19219 NULL
+gsi_to_irq_19220 gsi_to_irq 0-1 19220 NULL
+snd_mask_max_19224 snd_mask_max 0 19224 NULL
+bio_alloc_mddev_19238 bio_alloc_mddev 2 19238 NULL
+sys_fcntl_19267 sys_fcntl 3 19267 NULL
+il_dbgfs_rxon_filter_flags_read_19281 il_dbgfs_rxon_filter_flags_read 3 19281 NULL
+io_mapping_map_wc_19284 io_mapping_map_wc 2 19284 NULL
+qc_capture_19298 qc_capture 3 19298 NULL
+ocfs2_prepare_inode_for_refcount_19303 ocfs2_prepare_inode_for_refcount 3-4 19303 NULL
+event_tx_stuck_read_19305 event_tx_stuck_read 3 19305 NULL
+gfn_to_gpa_19320 gfn_to_gpa 0-1 19320 NULL
+debug_read_19322 debug_read 3 19322 NULL
+cfg80211_inform_bss_19332 cfg80211_inform_bss 8 19332 NULL
+read_zero_19366 read_zero 3 19366 NULL
+interpret_user_input_19393 interpret_user_input 2 19393 NULL
+get_n_events_by_type_19401 get_n_events_by_type 0 19401 NULL
+dvbdmx_write_19423 dvbdmx_write 3 19423 NULL
+__phys_addr_19434 __phys_addr 0 19434 NULL
+xfrm_alg_auth_len_19454 xfrm_alg_auth_len 0 19454 NULL
+hpet_compat_ioctl_19455 hpet_compat_ioctl 3 19455 NULL
+gnet_stats_copy_19458 gnet_stats_copy 4 19458 NULL
+sky2_read16_19475 sky2_read16 0 19475 NULL
+efivar_create_sysfs_entry_19485 efivar_create_sysfs_entry 2 19485 NULL
+ext4_add_new_descs_19509 ext4_add_new_descs 3 19509 NULL
+skb_realloc_headroom_19516 skb_realloc_headroom 2 19516 NULL
+dev_alloc_skb_19517 dev_alloc_skb 1 19517 NULL
+nfc_llcp_build_tlv_19536 nfc_llcp_build_tlv 3 19536 NULL
+gfn_to_index_19558 gfn_to_index 0-1-3-2 19558 NULL
+ocfs2_control_message_19564 ocfs2_control_message 3 19564 NULL
+ieee80211_if_read_tkip_mic_test_19565 ieee80211_if_read_tkip_mic_test 3 19565 NULL nohasharray
+wlcore_hw_get_rx_packet_len_19565 wlcore_hw_get_rx_packet_len 0 19565 &ieee80211_if_read_tkip_mic_test_19565
+nfsd_read_19568 nfsd_read 5 19568 NULL
+cgroup_read_s64_19570 cgroup_read_s64 5 19570 NULL
+bm_status_read_19583 bm_status_read 3 19583 NULL
+batadv_tt_update_orig_19586 batadv_tt_update_orig 4 19586 NULL
+load_xattr_datum_19594 load_xattr_datum 0 19594 NULL
+usbvision_rvmalloc_19655 usbvision_rvmalloc 1 19655 NULL
+LoadBitmap_19658 LoadBitmap 2 19658 NULL
+usbnet_write_cmd_19679 usbnet_write_cmd 7 19679 NULL
+bio_detain_19690 bio_detain 2 19690 NULL
+read_reg_19723 read_reg 0 19723 NULL
+wm8350_block_write_19727 wm8350_block_write 3-2 19727 NULL
+memcpy_toiovecend_19736 memcpy_toiovecend 4-3 19736 NULL
+snd_es1968_get_dma_ptr_19747 snd_es1968_get_dma_ptr 0 19747 NULL
+p9_client_read_19750 p9_client_read 5 19750 NULL
+pnpbios_proc_write_19758 pnpbios_proc_write 3 19758 NULL
+ocfs2_readpages_19759 ocfs2_readpages 4 19759 NULL
+jffs2_acl_from_medium_19762 jffs2_acl_from_medium 2 19762 NULL
+__set_print_fmt_19776 __set_print_fmt 0 19776 NULL
+saa7146_vmalloc_build_pgtable_19780 saa7146_vmalloc_build_pgtable 2 19780 NULL
+irda_setsockopt_19824 irda_setsockopt 5 19824 NULL
+pcpu_next_unpop_19831 pcpu_next_unpop 4 19831 NULL
+vfs_getxattr_19832 vfs_getxattr 0 19832 NULL
+security_context_to_sid_19839 security_context_to_sid 2 19839 NULL
+crypt_alloc_buffer_19846 crypt_alloc_buffer 2 19846 NULL
+cfg80211_mlme_register_mgmt_19852 cfg80211_mlme_register_mgmt 5 19852 NULL
+__nla_put_19857 __nla_put 3 19857 NULL
+ip6gre_err_19869 ip6gre_err 5 19869 NULL
+mrp_request_join_19882 mrp_request_join 4 19882 NULL
+aes_decrypt_interrupt_read_19910 aes_decrypt_interrupt_read 3 19910 NULL
+ps_upsd_max_apturn_read_19918 ps_upsd_max_apturn_read 3 19918 NULL
+cgroup_task_count_19930 cgroup_task_count 0 19930 NULL
+iwl_dbgfs_rx_queue_read_19943 iwl_dbgfs_rx_queue_read 3 19943 NULL
+attach_hdlc_protocol_19986 attach_hdlc_protocol 3 19986 NULL
+diva_um_idi_read_20003 diva_um_idi_read 0 20003 NULL
+split_scan_timeout_read_20029 split_scan_timeout_read 3 20029 NULL
+alloc_ieee80211_20063 alloc_ieee80211 1 20063 NULL
+rawv6_sendmsg_20080 rawv6_sendmsg 4 20080 NULL
+fuse_conn_limit_read_20084 fuse_conn_limit_read 3 20084 NULL
+team_options_register_20091 team_options_register 3 20091 NULL
+qla2x00_adjust_sdev_qdepth_up_20097 qla2x00_adjust_sdev_qdepth_up 2 20097 NULL
+hptiop_adjust_disk_queue_depth_20122 hptiop_adjust_disk_queue_depth 2 20122 NULL
+tomoyo_commit_ok_20167 tomoyo_commit_ok 2 20167 NULL
+read_flush_pipefs_20171 read_flush_pipefs 3 20171 NULL
+wep_addr_key_count_read_20174 wep_addr_key_count_read 3 20174 NULL
+create_trace_probe_20175 create_trace_probe 1 20175 NULL
+crystalhd_map_dio_20181 crystalhd_map_dio 3 20181 NULL
+udf_bitmap_new_block_20214 udf_bitmap_new_block 4 20214 NULL
+pvr2_ctrl_value_to_sym_20229 pvr2_ctrl_value_to_sym 5 20229 NULL
+rose_sendmsg_20249 rose_sendmsg 4 20249 NULL
+tm6000_i2c_send_regs_20250 tm6000_i2c_send_regs 5 20250 NULL
+pcpu_alloc_20255 pcpu_alloc 1-2 20255 NULL
+_rtl92s_get_h2c_cmdlen_20312 _rtl92s_get_h2c_cmdlen 0 20312 NULL
+tx_tx_burst_programmed_read_20320 tx_tx_burst_programmed_read 3 20320 NULL
+snd_cs4281_BA1_read_20323 snd_cs4281_BA1_read 5 20323 NULL
+gfs2_glock_nq_m_20347 gfs2_glock_nq_m 1 20347 NULL
+handle_arr_calc_size_20355 handle_arr_calc_size 0-1 20355 NULL
+qla82xx_pci_mem_read_direct_20368 qla82xx_pci_mem_read_direct 2 20368 NULL
+smk_set_cipso_20379 smk_set_cipso 3 20379 NULL
+u64_to_uptr_20384 u64_to_uptr 1 20384 NULL
+snd_nm256_readl_20394 snd_nm256_readl 0 20394 NULL
+__kfifo_from_user_20399 __kfifo_from_user 3 20399 NULL
+xen_create_contiguous_region_20457 xen_create_contiguous_region 1 20457 NULL
+nfs3_setxattr_20458 nfs3_setxattr 4 20458 NULL
+compat_ipv6_setsockopt_20468 compat_ipv6_setsockopt 5 20468 NULL
+read_buf_20469 read_buf 2 20469 NULL
+btrfs_get_32_20476 btrfs_get_32 0 20476 NULL
+fast_user_write_20494 fast_user_write 5 20494 NULL
+ocfs2_db_frozen_trigger_20503 ocfs2_db_frozen_trigger 4 20503 NULL nohasharray
+hidraw_report_event_20503 hidraw_report_event 3 20503 &ocfs2_db_frozen_trigger_20503
+pcpu_alloc_area_20511 pcpu_alloc_area 0-3 20511 NULL
+pcpu_depopulate_chunk_20517 pcpu_depopulate_chunk 2-3 20517 NULL
+xfs_iext_realloc_direct_20521 xfs_iext_realloc_direct 2 20521 NULL
+drbd_bm_resize_20522 drbd_bm_resize 2 20522 NULL
+amd_create_gatt_pages_20537 amd_create_gatt_pages 1 20537 NULL
+scsi_report_opcode_20551 scsi_report_opcode 3 20551 NULL
+venus_create_20555 venus_create 4 20555 NULL
+btrfs_super_log_root_20565 btrfs_super_log_root 0 20565 NULL
+crypto_ahash_reqsize_20569 crypto_ahash_reqsize 0 20569 NULL
+i915_max_freq_read_20581 i915_max_freq_read 3 20581 NULL
+batadv_tt_append_diff_20588 batadv_tt_append_diff 4 20588 NULL
+lirc_write_20604 lirc_write 3 20604 NULL
+qib_qsfp_write_20614 qib_qsfp_write 0-4-2 20614 NULL
+snd_pcm_oss_prepare_20641 snd_pcm_oss_prepare 0 20641 NULL
+kfifo_copy_to_user_20646 kfifo_copy_to_user 3 20646 NULL
+cpulist_scnprintf_20648 cpulist_scnprintf 0-2 20648 NULL
+oz_add_farewell_20652 oz_add_farewell 5 20652 NULL
+oz_cdev_read_20659 oz_cdev_read 3 20659 NULL
+snd_hdsp_playback_copy_20676 snd_hdsp_playback_copy 5 20676 NULL
+get_user_page_nowait_20682 get_user_page_nowait 3 20682 NULL nohasharray
+dvb_dmxdev_buffer_read_20682 dvb_dmxdev_buffer_read 0-4 20682 &get_user_page_nowait_20682
+cpumask_size_20683 cpumask_size 0 20683 NULL
+btrfs_node_blockptr_20685 btrfs_node_blockptr 0 20685 NULL
+gru_vtop_20689 gru_vtop 2 20689 NULL
+read_file_tgt_int_stats_20697 read_file_tgt_int_stats 3 20697 NULL
+__maestro_read_20700 __maestro_read 0 20700 NULL
+cipso_v4_gentag_rng_20703 cipso_v4_gentag_rng 0 20703 NULL
+pcpu_page_first_chunk_20712 pcpu_page_first_chunk 1 20712 NULL
+ocfs2_read_xattr_bucket_20722 ocfs2_read_xattr_bucket 0 20722 NULL
+security_context_to_sid_force_20724 security_context_to_sid_force 2 20724 NULL
+vring_add_indirect_20737 vring_add_indirect 3-4 20737 NULL
+io_apic_set_pci_routing_20740 io_apic_set_pci_routing 2 20740 NULL
+vol_cdev_direct_write_20751 vol_cdev_direct_write 3 20751 NULL
+ocfs2_align_bytes_to_clusters_20754 ocfs2_align_bytes_to_clusters 2 20754 NULL
+brcmf_p2p_escan_20763 brcmf_p2p_escan 2 20763 NULL
+ubi_io_read_20767 ubi_io_read 0 20767 NULL
+fb_alloc_cmap_gfp_20792 fb_alloc_cmap_gfp 2 20792 NULL
+iommu_range_alloc_20794 iommu_range_alloc 3 20794 NULL
+iwl_dbgfs_rxon_flags_read_20795 iwl_dbgfs_rxon_flags_read 3 20795 NULL
+sys_sendto_20809 sys_sendto 6 20809 NULL
+strndup_user_20819 strndup_user 2 20819 NULL
+calc_layout_20829 calc_layout 3 20829 NULL
+wl1271_format_buffer_20834 wl1271_format_buffer 2 20834 NULL
+uvc_alloc_entity_20836 uvc_alloc_entity 3-4 20836 NULL
+snd_pcm_capture_avail_20867 snd_pcm_capture_avail 0 20867 NULL
+ocfs2_bmap_20874 ocfs2_bmap 2 20874 NULL
+skb_tail_pointer_20878 skb_tail_pointer 0 20878 NULL
+sisusb_send_packet_20891 sisusb_send_packet 2 20891 NULL
+key_icverrors_read_20895 key_icverrors_read 3 20895 NULL
+vfio_msi_enable_20906 vfio_msi_enable 2 20906 NULL
+compat_sys_readv_20911 compat_sys_readv 3 20911 NULL
+htable_bits_20933 htable_bits 0 20933 NULL
+altera_set_ir_post_20948 altera_set_ir_post 2 20948 NULL
+rx_rx_phy_hdr_read_20950 rx_rx_phy_hdr_read 3 20950 NULL
+nfs_map_name_to_uid_20962 nfs_map_name_to_uid 3 20962 NULL
+snd_rme9652_playback_copy_20970 snd_rme9652_playback_copy 5 20970 NULL
+brcmf_tx_frame_20978 brcmf_tx_frame 3 20978 NULL
+alg_setsockopt_20985 alg_setsockopt 5 20985 NULL
+ocfs2_free_clusters_21001 ocfs2_free_clusters 4 21001 NULL
+ceph_osdc_new_request_21017 ceph_osdc_new_request 14-4 21017 NULL
+btrfs_inode_ref_name_len_21024 btrfs_inode_ref_name_len 0 21024 NULL
+rx_defrag_tkip_called_read_21031 rx_defrag_tkip_called_read 3 21031 NULL
+lbs_threshold_read_21046 lbs_threshold_read 5 21046 NULL
+proc_fault_inject_write_21058 proc_fault_inject_write 3 21058 NULL
+event_calibration_read_21083 event_calibration_read 3 21083 NULL
+compat_sock_ioctl_trans_21092 compat_sock_ioctl_trans 4 21092 NULL
+multipath_status_21094 multipath_status 5 21094 NULL
+__cfg80211_send_disassoc_21096 __cfg80211_send_disassoc 3 21096 NULL
+ext2_valid_block_bitmap_21101 ext2_valid_block_bitmap 3 21101 NULL
+ath6kl_send_go_probe_resp_21113 ath6kl_send_go_probe_resp 3 21113 NULL
+bitset_size_in_bytes_21124 bitset_size_in_bytes 0-1 21124 NULL
+i2400m_rx_trace_21127 i2400m_rx_trace 3 21127 NULL
+tps6586x_irq_init_21144 tps6586x_irq_init 3 21144 NULL
+ocfs2_block_check_validate_21149 ocfs2_block_check_validate 2 21149 NULL
+cx18_v4l2_read_21196 cx18_v4l2_read 3 21196 NULL
+ipc_rcu_alloc_21208 ipc_rcu_alloc 1 21208 NULL
+_ocfs2_free_clusters_21220 _ocfs2_free_clusters 4 21220 NULL
+get_numpages_21227 get_numpages 0-1-2 21227 NULL
+input_ff_create_21240 input_ff_create 2 21240 NULL
+cfg80211_notify_new_peer_candidate_21242 cfg80211_notify_new_peer_candidate 4 21242 NULL
+ocfs2_blocks_for_bytes_21268 ocfs2_blocks_for_bytes 0-2 21268 NULL
+ip_vs_icmp_xmit_21269 ip_vs_icmp_xmit 4 21269 NULL
+make_alloc_exact_21279 make_alloc_exact 1-3 21279 NULL
+vmw_gmr2_bind_21305 vmw_gmr2_bind 3 21305 NULL
+do_msg_fill_21307 do_msg_fill 3 21307 NULL
+add_res_range_21310 add_res_range 4 21310 NULL
+get_zeroed_page_21322 get_zeroed_page 0 21322 NULL
+ftrace_profile_read_21327 ftrace_profile_read 3 21327 NULL
+gfs2_ea_get_copy_21353 gfs2_ea_get_copy 0 21353 NULL
+max77693_irq_domain_map_21357 max77693_irq_domain_map 2 21357 NULL
+alloc_orinocodev_21371 alloc_orinocodev 1 21371 NULL
+video_ioctl2_21380 video_ioctl2 2 21380 NULL
+diva_get_driver_dbg_mask_21399 diva_get_driver_dbg_mask 0 21399 NULL
+snd_m3_inw_21406 snd_m3_inw 0 21406 NULL
+snapshot_read_next_21426 snapshot_read_next 0 21426 NULL
+tcp_bound_to_half_wnd_21429 tcp_bound_to_half_wnd 0-2 21429 NULL
+tracing_saved_cmdlines_read_21434 tracing_saved_cmdlines_read 3 21434 NULL
+aggr_size_tx_agg_vs_rate_read_21438 aggr_size_tx_agg_vs_rate_read 3 21438 NULL
+__ertm_hdr_size_21450 __ertm_hdr_size 0 21450 NULL
+concat_writev_21451 concat_writev 3 21451 NULL
+read_file_xmit_21487 read_file_xmit 3 21487 NULL
+mmc_alloc_sg_21504 mmc_alloc_sg 1 21504 NULL
+btrfs_file_aio_write_21520 btrfs_file_aio_write 4 21520 NULL
+il_dbgfs_stations_read_21532 il_dbgfs_stations_read 3 21532 NULL
+cipso_v4_map_cat_enum_hton_21540 cipso_v4_map_cat_enum_hton 0 21540 NULL
+rxrpc_send_data_21553 rxrpc_send_data 5 21553 NULL
+rx_rx_beacon_early_term_read_21559 rx_rx_beacon_early_term_read 3 21559 NULL
+xfs_buf_read_uncached_21585 xfs_buf_read_uncached 3 21585 NULL
+ocfs2_acl_from_xattr_21604 ocfs2_acl_from_xattr 2 21604 NULL
+__jfs_getxattr_21631 __jfs_getxattr 0 21631 NULL
+validate_nnode_21638 validate_nnode 0 21638 NULL
+__irq_alloc_descs_21639 __irq_alloc_descs 2-1-3 21639 NULL
+carl9170_rx_copy_data_21656 carl9170_rx_copy_data 2 21656 NULL
+atalk_sendmsg_21677 atalk_sendmsg 4 21677 NULL
+ocfs2_xattr_get_nolock_21678 ocfs2_xattr_get_nolock 0 21678 NULL
+regmap_register_patch_21681 regmap_register_patch 3 21681 NULL
+rtllib_alloc_txb_21687 rtllib_alloc_txb 1-2 21687 NULL
+evdev_ioctl_handler_21705 evdev_ioctl_handler 2 21705 NULL
+reiserfs_allocate_list_bitmaps_21732 reiserfs_allocate_list_bitmaps 3 21732 NULL
+vm_brk_21739 vm_brk 1 21739 NULL
+__nf_nat_mangle_tcp_packet_21744 __nf_nat_mangle_tcp_packet 8-6 21744 NULL
+mthca_alloc_init_21754 mthca_alloc_init 2 21754 NULL
+gen_pool_add_21776 gen_pool_add 3 21776 NULL
+xfs_da_grow_inode_int_21785 xfs_da_grow_inode_int 3 21785 NULL
+__ioremap_caller_21800 __ioremap_caller 1-2 21800 NULL
+min_odd_21802 min_odd 0 21802 NULL
+dvb_generic_ioctl_21810 dvb_generic_ioctl 2 21810 NULL
+wm8994_request_irq_21822 wm8994_request_irq 2 21822 NULL
+oom_adj_read_21847 oom_adj_read 3 21847 NULL
+acpi_tb_check_xsdt_21862 acpi_tb_check_xsdt 1 21862 NULL
+lpfc_idiag_extacc_avail_get_21865 lpfc_idiag_extacc_avail_get 0-3 21865 NULL
+brcms_debugfs_hardware_read_21867 brcms_debugfs_hardware_read 3 21867 NULL
+sisusbcon_bmove_21873 sisusbcon_bmove 6-5-7 21873 NULL nohasharray
+tcp_cookie_size_check_21873 tcp_cookie_size_check 0-1 21873 &sisusbcon_bmove_21873
+xen_swiotlb_map_page_21886 xen_swiotlb_map_page 3 21886 NULL
+__alloc_reserved_percpu_21895 __alloc_reserved_percpu 1-2 21895 NULL
+rio_destid_first_21900 rio_destid_first 0 21900 NULL
+dbAllocCtl_21911 dbAllocCtl 0 21911 NULL
+qsfp_1_read_21915 qsfp_1_read 3 21915 NULL
+security_mmap_addr_21970 security_mmap_addr 0 21970 NULL
+alloc_ldt_21972 alloc_ldt 2 21972 NULL
+rxpipe_descr_host_int_trig_rx_data_read_22001 rxpipe_descr_host_int_trig_rx_data_read 3 22001 NULL nohasharray
+compat_rw_copy_check_uvector_22001 compat_rw_copy_check_uvector 0-3 22001 &rxpipe_descr_host_int_trig_rx_data_read_22001
+btrfs_get_16_22023 btrfs_get_16 0 22023 NULL
+zd_usb_read_fw_22049 zd_usb_read_fw 4 22049 NULL
+ieee80211_if_fmt_dropped_frames_ttl_22054 ieee80211_if_fmt_dropped_frames_ttl 3 22054 NULL
+btrfs_reloc_clone_csums_22077 btrfs_reloc_clone_csums 2 22077 NULL
+write_opcode_22082 write_opcode 2 22082 NULL
+mem_rw_22085 mem_rw 3 22085 NULL
+is_swbp_at_addr_22089 is_swbp_at_addr 2 22089 NULL
+lowpan_fragment_xmit_22095 lowpan_fragment_xmit 3-4 22095 NULL
+sys_remap_file_pages_22124 sys_remap_file_pages 1 22124 NULL
+__bitmap_size_22138 __bitmap_size 0 22138 NULL
+compat_insn_22142 compat_insn 2 22142 NULL
+do_tcp_sendpages_22155 do_tcp_sendpages 4 22155 NULL
+__kfifo_alloc_22173 __kfifo_alloc 3 22173 NULL
+fls_22210 fls 0 22210 NULL
+mem_write_22232 mem_write 3 22232 NULL
+p9_virtio_zc_request_22240 p9_virtio_zc_request 6-5 22240 NULL
+atomic64_xchg_22246 atomic64_xchg 0 22246 NULL
+compat_process_vm_rw_22254 compat_process_vm_rw 3-5 22254 NULL
+__btrfs_direct_write_22273 __btrfs_direct_write 4 22273 NULL
+queue_max_sectors_22280 queue_max_sectors 0 22280 NULL
+pci_vpd_srdt_size_22300 pci_vpd_srdt_size 0 22300 NULL nohasharray
+__tun_chr_ioctl_22300 __tun_chr_ioctl 4 22300 &pci_vpd_srdt_size_22300
+extend_brk_22301 extend_brk 0 22301 NULL
+mesh_table_alloc_22305 mesh_table_alloc 1 22305 NULL
+get_segment_base_22324 get_segment_base 0 22324 NULL
+radix_tree_find_next_bit_22334 radix_tree_find_next_bit 2-3 22334 NULL
+atomic_read_22342 atomic_read 0 22342 NULL
+mlx4_db_alloc_22358 mlx4_db_alloc 3 22358 NULL
+irq_reserve_irq_22360 irq_reserve_irq 1 22360 NULL nohasharray
+memcg_size_22360 memcg_size 0 22360 &irq_reserve_irq_22360
+snd_pcm_alsa_frames_22363 snd_pcm_alsa_frames 2 22363 NULL
+tps6586x_gpio_to_irq_22365 tps6586x_gpio_to_irq 2 22365 NULL
+evdev_ioctl_22371 evdev_ioctl 2 22371 NULL
+alloc_large_system_hash_22391 alloc_large_system_hash 2 22391 NULL
+btmrvl_psmode_read_22395 btmrvl_psmode_read 3 22395 NULL
+crash_shrink_memory_22401 crash_shrink_memory 1 22401 NULL
+zoran_write_22404 zoran_write 3 22404 NULL
+queue_reply_22416 queue_reply 3 22416 NULL
+__set_enter_print_fmt_22431 __set_enter_print_fmt 0 22431 NULL
+queue_max_segments_22441 queue_max_segments 0 22441 NULL
+handle_received_packet_22457 handle_received_packet 3 22457 NULL
+mem_cgroup_read_22461 mem_cgroup_read 5 22461 NULL
+batadv_check_unicast_packet_22468 batadv_check_unicast_packet 3 22468 NULL
+cache_write_procfs_22491 cache_write_procfs 3 22491 NULL
+mp_find_ioapic_pin_22499 mp_find_ioapic_pin 0-2 22499 NULL
+mutex_lock_interruptible_22505 mutex_lock_interruptible 0 22505 NULL
+ip4_addr_string_22511 ip4_addr_string 0 22511 NULL
+swiotlb_tbl_unmap_single_22522 swiotlb_tbl_unmap_single 2 22522 NULL nohasharray
+usb_dump_config_descriptor_22522 usb_dump_config_descriptor 0 22522 &swiotlb_tbl_unmap_single_22522
+pskb_may_pull_22546 pskb_may_pull 2 22546 NULL
+ocfs2_read_extent_block_22550 ocfs2_read_extent_block 0 22550 NULL
+atomic_long_read_unchecked_22551 atomic_long_read_unchecked 0 22551 NULL
+agp_alloc_page_array_22554 agp_alloc_page_array 1 22554 NULL
+dbFindCtl_22587 dbFindCtl 0 22587 NULL
+snapshot_read_22601 snapshot_read 3 22601 NULL
+remove_breakpoint_22628 remove_breakpoint 3 22628 NULL
+sctp_setsockopt_connectx_old_22631 sctp_setsockopt_connectx_old 3 22631 NULL
+ide_core_cp_entry_22636 ide_core_cp_entry 3 22636 NULL
+wl1271_rx_filter_get_fields_size_22638 wl1271_rx_filter_get_fields_size 0 22638 NULL
+pwr_wake_on_timer_exp_read_22640 pwr_wake_on_timer_exp_read 3 22640 NULL
+iwl_dbgfs_calib_disabled_read_22649 iwl_dbgfs_calib_disabled_read 3 22649 NULL
+ubifs_leb_write_22679 ubifs_leb_write 4-5 22679 NULL
+ocfs2_get_block_22687 ocfs2_get_block 2 22687 NULL
+compat_fd_ioctl_22694 compat_fd_ioctl 4 22694 NULL
+map_22700 map 2 22700 NULL
+alloc_libipw_22708 alloc_libipw 1 22708 NULL
+brcmf_sdbrcm_read_control_22721 brcmf_sdbrcm_read_control 3 22721 NULL
+cx18_copy_buf_to_user_22735 cx18_copy_buf_to_user 4 22735 NULL
+ceph_decode_32_22738 ceph_decode_32 0 22738 NULL
+iio_debugfs_write_reg_22742 iio_debugfs_write_reg 3 22742 NULL
+print_frame_22769 print_frame 0 22769 NULL
+ftrace_arch_read_dyn_info_22773 ftrace_arch_read_dyn_info 0 22773 NULL
+compat_blkdev_ioctl_22841 compat_blkdev_ioctl 3 22841 NULL
+clone_bio_integrity_22842 clone_bio_integrity 4 22842 NULL
+read_file_rcstat_22854 read_file_rcstat 3 22854 NULL
+do_atm_iobuf_22857 do_atm_iobuf 3 22857 NULL
+create_attr_set_22861 create_attr_set 1 22861 NULL
+vmw_execbuf_process_22885 vmw_execbuf_process 5 22885 NULL
+usblp_new_writeurb_22894 usblp_new_writeurb 2 22894 NULL
+mdc800_device_read_22896 mdc800_device_read 3 22896 NULL
+policy_emit_config_values_22900 policy_emit_config_values 3 22900 NULL
+pcpu_mem_zalloc_22948 pcpu_mem_zalloc 1 22948 NULL
+alloc_sglist_22960 alloc_sglist 1-2-3 22960 NULL
+caif_seqpkt_sendmsg_22961 caif_seqpkt_sendmsg 4 22961 NULL
+vme_get_size_22964 vme_get_size 0 22964 NULL
+tx_frag_key_not_found_read_22971 tx_frag_key_not_found_read 3 22971 NULL
+page_table_range_init_count_22977 page_table_range_init_count 0 22977 NULL
+usb_get_langid_22983 usb_get_langid 0 22983 NULL
+set_msr_hyperv_22985 set_msr_hyperv 3 22985 NULL
+remote_settings_file_write_22987 remote_settings_file_write 3 22987 NULL
+viafb_dvp0_proc_write_23023 viafb_dvp0_proc_write 3 23023 NULL
+cifs_local_to_utf16_bytes_23025 cifs_local_to_utf16_bytes 0 23025 NULL
+st_status_23032 st_status 5 23032 NULL
+nv50_disp_chan_create__23056 nv50_disp_chan_create_ 5 23056 NULL
+reiserfs_add_entry_23062 reiserfs_add_entry 4 23062 NULL
+kvm_mmu_gva_to_gpa_write_23075 kvm_mmu_gva_to_gpa_write 0 23075 NULL
+vm_map_ram_23078 vm_map_ram 2 23078 NULL nohasharray
+raw_sendmsg_23078 raw_sendmsg 4 23078 &vm_map_ram_23078
+qla4_82xx_pci_mem_read_2M_23081 qla4_82xx_pci_mem_read_2M 2 23081 NULL
+isr_tx_procs_read_23084 isr_tx_procs_read 3 23084 NULL
+lnw_gpio_irq_map_23087 lnw_gpio_irq_map 2 23087 NULL
+rt2x00debug_write_eeprom_23091 rt2x00debug_write_eeprom 3 23091 NULL
+fls_long_23096 fls_long 0 23096 NULL
+ntfs_ucstonls_23097 ntfs_ucstonls 3-5 23097 NULL
+pipe_iov_copy_from_user_23102 pipe_iov_copy_from_user 3 23102 NULL
+mwl8k_cmd_set_beacon_23110 mwl8k_cmd_set_beacon 4 23110 NULL
+nl80211_send_rx_auth_23111 nl80211_send_rx_auth 4 23111 NULL
+__clear_user_23118 __clear_user 0 23118 NULL
+dm_write_async_23120 dm_write_async 3 23120 NULL
+drm_mode_create_tv_properties_23122 drm_mode_create_tv_properties 2 23122 NULL
+ca91cx42_master_set_23146 ca91cx42_master_set 4 23146 NULL
+read_file_ani_23161 read_file_ani 3 23161 NULL
+ioremap_23172 ioremap 1-2 23172 NULL
+usblp_write_23178 usblp_write 3 23178 NULL
+msnd_fifo_alloc_23179 msnd_fifo_alloc 2 23179 NULL
+gss_pipe_downcall_23182 gss_pipe_downcall 3 23182 NULL
+ieee80211_get_mesh_hdrlen_23183 ieee80211_get_mesh_hdrlen 0 23183 NULL
+fix_unclean_leb_23188 fix_unclean_leb 3 23188 NULL
+mpi_alloc_limb_space_23190 mpi_alloc_limb_space 1 23190 NULL
+convert_ip_to_linear_23198 convert_ip_to_linear 0 23198 NULL
+pm80x_free_irq_23210 pm80x_free_irq 2 23210 NULL nohasharray
+compat_rawv6_ioctl_23210 compat_rawv6_ioctl 3 23210 &pm80x_free_irq_23210
+tty_buffer_request_room_23228 tty_buffer_request_room 2 23228 NULL
+xlog_get_bp_23229 xlog_get_bp 2 23229 NULL
+rxrpc_client_sendmsg_23236 rxrpc_client_sendmsg 5 23236 NULL
+__gfn_to_rmap_23240 __gfn_to_rmap 1-2 23240 NULL
+uwb_dev_addr_print_23282 uwb_dev_addr_print 2 23282 NULL
+ipv6_skip_exthdr_23283 ipv6_skip_exthdr 0-2 23283 NULL
+doc_probe_23285 doc_probe 1 23285 NULL
+diva_get_trace_filter_23286 diva_get_trace_filter 0 23286 NULL
+perf_mmap_free_page_23302 perf_mmap_free_page 1 23302 NULL
+i2cdev_write_23310 i2cdev_write 3 23310 NULL
+mc13xxx_get_num_regulators_dt_23344 mc13xxx_get_num_regulators_dt 0 23344 NULL
+page_readlink_23346 page_readlink 3 23346 NULL
+get_dst_timing_23358 get_dst_timing 0 23358 NULL
+fd_setup_write_same_buf_23369 fd_setup_write_same_buf 3 23369 NULL
+iscsi_change_queue_depth_23416 iscsi_change_queue_depth 2 23416 NULL
+vga_mm_r_23419 vga_mm_r 0 23419 NULL
+vzalloc_node_23424 vzalloc_node 1 23424 NULL
+ocfs2_zero_tail_23447 ocfs2_zero_tail 3 23447 NULL
+hidraw_send_report_23449 hidraw_send_report 3 23449 NULL
+linear_conf_23485 linear_conf 2 23485 NULL nohasharray
+divasa_remap_pci_bar_23485 divasa_remap_pci_bar 3-4 23485 &linear_conf_23485
+event_filter_read_23494 event_filter_read 3 23494 NULL
+__gfn_to_hva_many_23508 __gfn_to_hva_many 0-2 23508 NULL
+ima_show_measurements_count_23536 ima_show_measurements_count 3 23536 NULL
+xen_allocate_irq_gsi_23546 xen_allocate_irq_gsi 1-0 23546 NULL
+tcp_current_mss_23552 tcp_current_mss 0 23552 NULL
+dbg_leb_change_23555 dbg_leb_change 4 23555 NULL
+venus_symlink_23570 venus_symlink 4-6 23570 NULL
+iwl_dbgfs_interrupt_read_23574 iwl_dbgfs_interrupt_read 3 23574 NULL
+snd_interval_min_23590 snd_interval_min 0 23590 NULL
+do_mmap_pgoff_23600 do_mmap_pgoff 0 23600 NULL
+_alloc_cdb_cont_23609 _alloc_cdb_cont 2 23609 NULL
+islpci_mgt_transaction_23610 islpci_mgt_transaction 5 23610 NULL
+__i2400mu_send_barker_23652 __i2400mu_send_barker 3 23652 NULL
+ext3_compat_ioctl_23659 ext3_compat_ioctl 3 23659 NULL
+sInW_23663 sInW 0 23663 NULL
+proc_ioctl_compat_23682 proc_ioctl_compat 2 23682 NULL
+nftl_partscan_23688 nftl_partscan 0 23688 NULL
+cx18_read_23699 cx18_read 3 23699 NULL
+mp_config_acpi_gsi_23728 mp_config_acpi_gsi 2 23728 NULL
+pack_sg_list_p_23739 pack_sg_list_p 0-2 23739 NULL
+rx_rx_dropped_frame_read_23748 rx_rx_dropped_frame_read 3 23748 NULL
+__kfifo_max_r_23768 __kfifo_max_r 0-2-1 23768 NULL
+security_inode_getxattr_23781 security_inode_getxattr 0 23781 NULL
+diva_alloc_dma_map_23798 diva_alloc_dma_map 2 23798 NULL
+rx_path_reset_read_23801 rx_path_reset_read 3 23801 NULL
+__earlyonly_bootmem_alloc_23824 __earlyonly_bootmem_alloc 2-3 23824 NULL
+ceph_copy_page_vector_to_user_23829 ceph_copy_page_vector_to_user 3-4 23829 NULL
+xfs_dir2_leaf_getdents_23841 xfs_dir2_leaf_getdents 3 23841 NULL
+pgdat_end_pfn_23842 pgdat_end_pfn 0 23842 NULL
+iwl_dbgfs_nvm_read_23845 iwl_dbgfs_nvm_read 3 23845 NULL
+p54_init_common_23850 p54_init_common 1 23850 NULL
+gart_alloc_coherent_23852 gart_alloc_coherent 2 23852 NULL
+bin_to_hex_dup_23853 bin_to_hex_dup 2 23853 NULL
+ocfs2_xattr_get_clusters_23857 ocfs2_xattr_get_clusters 0 23857 NULL
+ieee80211_if_read_dot11MeshMaxPeerLinks_23878 ieee80211_if_read_dot11MeshMaxPeerLinks 3 23878 NULL
+nes_alloc_resource_23891 nes_alloc_resource 3 23891 NULL
+tipc_snprintf_23893 tipc_snprintf 2 23893 NULL
+add_new_gdb_meta_bg_23911 add_new_gdb_meta_bg 3 23911 NULL nohasharray
+ieee80211_if_read_hw_queues_23911 ieee80211_if_read_hw_queues 3 23911 &add_new_gdb_meta_bg_23911
+f2fs_getxattr_23917 f2fs_getxattr 0 23917 NULL
+ipath_reg_phys_mr_23918 ipath_reg_phys_mr 3 23918 NULL nohasharray
+mpihelp_mul_karatsuba_case_23918 mpihelp_mul_karatsuba_case 5-3 23918 &ipath_reg_phys_mr_23918
+kvm_read_guest_23928 kvm_read_guest 4-2 23928 NULL
+__alloc_skb_23940 __alloc_skb 1 23940 NULL
+uvc_endpoint_max_bpi_23944 uvc_endpoint_max_bpi 0 23944 NULL
+cifs_setxattr_23957 cifs_setxattr 4 23957 NULL
+zd_usb_iowrite16v_async_23984 zd_usb_iowrite16v_async 3 23984 NULL
+cxgb_alloc_mem_24007 cxgb_alloc_mem 1 24007 NULL
+dgrp_send_24028 dgrp_send 0-2 24028 NULL
+ocfs2_mark_extent_refcounted_24035 ocfs2_mark_extent_refcounted 6 24035 NULL
+adis16400_show_serial_number_24037 adis16400_show_serial_number 3 24037 NULL
+afs_cell_alloc_24052 afs_cell_alloc 2 24052 NULL
+blkcipher_copy_iv_24075 blkcipher_copy_iv 3 24075 NULL
+vb2_fop_read_24080 vb2_fop_read 3 24080 NULL
+pipeline_post_proc_swi_read_24108 pipeline_post_proc_swi_read 3 24108 NULL
+request_key_auth_read_24109 request_key_auth_read 3 24109 NULL
+mpu401_read_24126 mpu401_read 3 24126 NULL
+irnet_ctrl_write_24139 irnet_ctrl_write 3 24139 NULL
+trim_bitmaps_24158 trim_bitmaps 3 24158 NULL
+set_discard_24162 set_discard 2 24162 NULL
+adu_read_24177 adu_read 3 24177 NULL
+safe_prepare_write_buffer_24187 safe_prepare_write_buffer 3 24187 NULL
+ieee80211_if_read_dot11MeshHWMPpreqMinInterval_24208 ieee80211_if_read_dot11MeshHWMPpreqMinInterval 3 24208 NULL
+efx_vf_size_24213 efx_vf_size 0 24213 NULL
+tcpprobe_sprint_24222 tcpprobe_sprint 0-2 24222 NULL
+pcpu_embed_first_chunk_24224 pcpu_embed_first_chunk 1-2-3 24224 NULL nohasharray
+mei_amthif_read_24224 mei_amthif_read 4 24224 &pcpu_embed_first_chunk_24224
+pci_num_vf_24235 pci_num_vf 0 24235 NULL
+sel_read_bool_24236 sel_read_bool 3 24236 NULL
+dm_cache_save_hint_24257 dm_cache_save_hint 2 24257 NULL
+em28xx_alloc_urbs_24260 em28xx_alloc_urbs 4-6 24260 NULL
+thin_status_24278 thin_status 5 24278 NULL
+compat_sys_preadv64_24283 compat_sys_preadv64 3 24283 NULL
+msg_size_24288 msg_size 0 24288 NULL
+ext2_free_blocks_24292 ext2_free_blocks 2-3 24292 NULL
+map_page_24298 map_page 3-4 24298 NULL
+btmrvl_pscmd_read_24308 btmrvl_pscmd_read 3 24308 NULL
+ath6kl_add_bss_if_needed_24317 ath6kl_add_bss_if_needed 6 24317 NULL
+ocfs2_direct_IO_get_blocks_24333 ocfs2_direct_IO_get_blocks 2 24333 NULL
+kzalloc_node_24352 kzalloc_node 1 24352 NULL
+qla2x00_handle_queue_full_24365 qla2x00_handle_queue_full 2 24365 NULL
+cfi_read_pri_24366 cfi_read_pri 3 24366 NULL
+btrfs_item_size_nr_24367 btrfs_item_size_nr 0 24367 NULL
+igetword_24373 igetword 0 24373 NULL
+pvr2_v4l2_ioctl_24398 pvr2_v4l2_ioctl 2 24398 NULL nohasharray
+getxattr_24398 getxattr 4 24398 &pvr2_v4l2_ioctl_24398
+blk_update_bidi_request_24415 blk_update_bidi_request 3-4 24415 NULL
+b43_debugfs_read_24425 b43_debugfs_read 3 24425 NULL
+iwl_nvm_read_section_24438 iwl_nvm_read_section 0 24438 NULL
+ixgbe_alloc_q_vector_24439 ixgbe_alloc_q_vector 4-6 24439 NULL
+smk_user_access_24440 smk_user_access 3 24440 NULL
+page_address_24444 page_address 0 24444 NULL
+evdev_do_ioctl_24459 evdev_do_ioctl 2 24459 NULL
+ocfs2_write_cluster_by_desc_24466 ocfs2_write_cluster_by_desc 5-6 24466 NULL
+read_file_spec_scan_ctl_24491 read_file_spec_scan_ctl 3 24491 NULL
+pd_video_read_24510 pd_video_read 3 24510 NULL
+request_key_with_auxdata_24515 request_key_with_auxdata 4 24515 NULL
+xfs_buf_get_map_24522 xfs_buf_get_map 3 24522 NULL
+named_prepare_buf_24532 named_prepare_buf 2 24532 NULL
+do_mpage_readpage_24536 do_mpage_readpage 3 24536 NULL
+write_cache_pages_24562 write_cache_pages 0 24562 NULL
+tsi148_alloc_resource_24563 tsi148_alloc_resource 2 24563 NULL
+udf_compute_nr_groups_24594 udf_compute_nr_groups 0 24594 NULL
+count_preds_24600 count_preds 0 24600 NULL
+sensor_hub_get_physical_device_count_24605 sensor_hub_get_physical_device_count 0 24605 NULL
+kvm_pv_enable_async_pf_24637 kvm_pv_enable_async_pf 2 24637 NULL
+context_alloc_24645 context_alloc 3 24645 NULL
+blk_rq_err_bytes_24650 blk_rq_err_bytes 0 24650 NULL
+unifi_net_data_malloc_24716 unifi_net_data_malloc 3 24716 NULL
+read_fs_24717 read_fs 0 24717 NULL
+simple_attr_read_24738 simple_attr_read 3 24738 NULL
+qla2x00_change_queue_depth_24742 qla2x00_change_queue_depth 2 24742 NULL
+ath_rxbuf_alloc_24745 ath_rxbuf_alloc 2 24745 NULL
+get_dma_residue_24749 get_dma_residue 0 24749 NULL
+kgdb_hex2mem_24755 kgdb_hex2mem 3 24755 NULL
+nfsd4_sanitize_slot_size_24756 nfsd4_sanitize_slot_size 0-1 24756 NULL
+i915_cache_sharing_read_24775 i915_cache_sharing_read 3 24775 NULL
+ocfs2_read_blocks_24777 ocfs2_read_blocks 0 24777 NULL
+skb_make_writable_24783 skb_make_writable 2 24783 NULL
+datablob_hmac_verify_24786 datablob_hmac_verify 4 24786 NULL
+cache_read_24790 cache_read 3 24790 NULL
+unpack_str_24798 unpack_str 0 24798 NULL
+__next_cpu_nr_24805 __next_cpu_nr 1 24805 NULL
+comedi_buf_alloc_24822 comedi_buf_alloc 3 24822 NULL
+snd_als4k_gcr_read_24840 snd_als4k_gcr_read 0 24840 NULL
+snd_pcm_lib_buffer_bytes_24865 snd_pcm_lib_buffer_bytes 0 24865 NULL
+pnp_alloc_24869 pnp_alloc 1 24869 NULL nohasharray
+l2cap_create_basic_pdu_24869 l2cap_create_basic_pdu 3 24869 &pnp_alloc_24869
+setup_buffering_24872 setup_buffering 3 24872 NULL
+bnx2fc_cmd_mgr_alloc_24873 bnx2fc_cmd_mgr_alloc 3-2 24873 NULL
+queues_read_24877 queues_read 3 24877 NULL
+codec_list_read_file_24910 codec_list_read_file 3 24910 NULL
+v4l2_ctrl_new_24927 v4l2_ctrl_new 7 24927 NULL
+next_token_24929 next_token 0 24929 NULL
+uf_create_device_nodes_24948 uf_create_device_nodes 2 24948 NULL
+ocfs2_fiemap_24949 ocfs2_fiemap 3-4 24949 NULL
+packet_sendmsg_24954 packet_sendmsg 4 24954 NULL
+sys_rt_sigpending_24961 sys_rt_sigpending 2 24961 NULL
+ensure_wear_leveling_24971 ensure_wear_leveling 0 24971 NULL
+twl_i2c_write_u8_24976 twl_i2c_write_u8 3 24976 NULL
+nf_nat_sdp_port_24977 nf_nat_sdp_port 7 24977 NULL
+llc_ui_sendmsg_24987 llc_ui_sendmsg 4 24987 NULL
+key_conf_hw_key_idx_read_25003 key_conf_hw_key_idx_read 3 25003 NULL
+il_dbgfs_channels_read_25005 il_dbgfs_channels_read 3 25005 NULL
+ni_660x_num_counters_25031 ni_660x_num_counters 0 25031 NULL
+nfs_dns_resolve_name_25036 nfs_dns_resolve_name 3 25036 NULL
+gs_buf_alloc_25067 gs_buf_alloc 2 25067 NULL
+ceph_osdc_writepages_25085 ceph_osdc_writepages 5 25085 NULL
+snd_rawmidi_kernel_write_25106 snd_rawmidi_kernel_write 3 25106 NULL
+sys_fgetxattr_25166 sys_fgetxattr 4 25166 NULL
+ipath_init_qp_table_25167 ipath_init_qp_table 2 25167 NULL
+sctp_getsockopt_local_addrs_25178 sctp_getsockopt_local_addrs 2 25178 NULL
+ks8851_rdreg32_25187 ks8851_rdreg32 0 25187 NULL
+ocfs2_block_check_compute_25223 ocfs2_block_check_compute 2 25223 NULL
+free_memcg_kmem_pages_25228 free_memcg_kmem_pages 1 25228 NULL
+mon_stat_read_25238 mon_stat_read 3 25238 NULL
+tcf_csum_ipv6_udp_25241 tcf_csum_ipv6_udp 4 25241 NULL
+nilfs_palloc_find_available_slot_25245 nilfs_palloc_find_available_slot 3-5 25245 NULL
+stripe_status_25259 stripe_status 5 25259 NULL
+snd_pcm_start_25273 snd_pcm_start 0 25273 NULL
+crypto_alloc_instance2_25277 crypto_alloc_instance2 3 25277 NULL
+vfs_writev_25278 vfs_writev 3 25278 NULL
+l2tp_session_create_25286 l2tp_session_create 1 25286 NULL
+snd_seq_ioctl_compat_25307 snd_seq_ioctl_compat 3 25307 NULL
+help_25316 help 5 25316 NULL nohasharray
+ath9k_debugfs_read_buf_25316 ath9k_debugfs_read_buf 3 25316 &help_25316
+rng_buffer_size_25348 rng_buffer_size 0 25348 NULL
+rio_destid_next_25368 rio_destid_next 2 25368 NULL nohasharray
+unix_mkname_25368 unix_mkname 0-2 25368 &rio_destid_next_25368
+sel_read_mls_25369 sel_read_mls 3 25369 NULL
+tc3589x_gpio_to_irq_25371 tc3589x_gpio_to_irq 2 25371 NULL
+ebt_buf_add_pad_25413 ebt_buf_add_pad 0 25413 NULL
+dai_list_read_file_25421 dai_list_read_file 3 25421 NULL
+ath6kl_wmi_beginscan_cmd_25462 ath6kl_wmi_beginscan_cmd 8 25462 NULL
+generic_file_buffered_write_25464 generic_file_buffered_write 4 25464 NULL
+crypto_hash_digestsize_25469 crypto_hash_digestsize 0 25469 NULL
+ocfs2_hamming_encode_25501 ocfs2_hamming_encode 3 25501 NULL
+ivtv_buf_copy_from_user_25502 ivtv_buf_copy_from_user 4 25502 NULL
+snd_pcm_plugin_build_25505 snd_pcm_plugin_build 5 25505 NULL
+sb_permission_25523 sb_permission 0 25523 NULL
+ext3_get_inode_loc_25542 ext3_get_inode_loc 0 25542 NULL
+ieee80211_if_read_path_refresh_time_25545 ieee80211_if_read_path_refresh_time 3 25545 NULL
+wimax_addr_scnprint_25548 wimax_addr_scnprint 2 25548 NULL
+ht_print_chan_25556 ht_print_chan 0 25556 NULL
+skb_tailroom_25567 skb_tailroom 0 25567 NULL
+find_extend_vma_25597 find_extend_vma 2 25597 NULL
+__devres_alloc_25598 __devres_alloc 2 25598 NULL
+copy_user_generic_25611 copy_user_generic 0 25611 NULL
+proc_coredump_filter_write_25625 proc_coredump_filter_write 3 25625 NULL
+__get_user_pages_25628 __get_user_pages 0-3-4 25628 NULL nohasharray
+befs_utf2nls_25628 befs_utf2nls 3 25628 &__get_user_pages_25628
+__direct_map_25647 __direct_map 5-6 25647 NULL
+ext2_try_to_allocate_25667 ext2_try_to_allocate 4-2 25667 NULL
+aircable_prepare_write_buffer_25669 aircable_prepare_write_buffer 3 25669 NULL
+sta_inactive_ms_read_25690 sta_inactive_ms_read 3 25690 NULL
+ebitmap_start_positive_25703 ebitmap_start_positive 0 25703 NULL
+rx_filter_mc_filter_read_25712 rx_filter_mc_filter_read 3 25712 NULL
+ibmasm_new_command_25714 ibmasm_new_command 2 25714 NULL
+sel_write_context_25726 sel_write_context 3 25726 NULL nohasharray
+__alloc_bootmem_low_node_25726 __alloc_bootmem_low_node 2-3 25726 &sel_write_context_25726
+mcs_unwrap_fir_25733 mcs_unwrap_fir 3 25733 NULL
+ext2_find_near_25734 ext2_find_near 0 25734 NULL
+__set_clear_dirty_25744 __set_clear_dirty 2 25744 NULL
+cxgbi_device_portmap_create_25747 cxgbi_device_portmap_create 3 25747 NULL
+event_rx_pool_read_25792 event_rx_pool_read 3 25792 NULL
+sg_read_25799 sg_read 3 25799 NULL
+system_enable_read_25815 system_enable_read 3 25815 NULL
+realloc_buffer_25816 realloc_buffer 2 25816 NULL
+mthca_map_user_db_25823 mthca_map_user_db 5 25823 NULL
+pwr_missing_bcns_read_25824 pwr_missing_bcns_read 3 25824 NULL
+parport_read_25855 parport_read 0 25855 NULL
+xfs_dir2_sf_hdr_size_25858 xfs_dir2_sf_hdr_size 0 25858 NULL
+uf_ap_process_data_pdu_25860 uf_ap_process_data_pdu 7 25860 NULL
+ath6kl_regread_read_25884 ath6kl_regread_read 3 25884 NULL
+run_delalloc_nocow_25896 run_delalloc_nocow 3 25896 NULL
+sisusbcon_scroll_area_25899 sisusbcon_scroll_area 4-3 25899 NULL
+lpfc_change_queue_depth_25905 lpfc_change_queue_depth 2 25905 NULL
+do_jffs2_setxattr_25910 do_jffs2_setxattr 5 25910 NULL
+rcname_read_25919 rcname_read 3 25919 NULL
+snd_es1938_capture_copy_25930 snd_es1938_capture_copy 5 25930 NULL
+key_flags_read_25931 key_flags_read 3 25931 NULL
+copy_play_buf_25932 copy_play_buf 3 25932 NULL
+flush_25957 flush 2 25957 NULL
+video_register_device_25971 video_register_device 3 25971 NULL
+udp_setsockopt_25985 udp_setsockopt 5 25985 NULL
+ebt_compat_entry_padsize_26001 ebt_compat_entry_padsize 0 26001 NULL
+lpfc_sli_probe_sriov_nr_virtfn_26004 lpfc_sli_probe_sriov_nr_virtfn 2 26004 NULL
+irq_create_strict_mappings_26025 irq_create_strict_mappings 2-4 26025 NULL
+xfs_xattr_acl_set_26028 xfs_xattr_acl_set 4 26028 NULL
+skb_mac_header_26034 skb_mac_header 0 26034 NULL
+mptscsih_change_queue_depth_26036 mptscsih_change_queue_depth 2 26036 NULL
+selinux_inode_post_setxattr_26037 selinux_inode_post_setxattr 4 26037 NULL
+tun_do_read_26047 tun_do_read 5 26047 NULL
+__alloc_memory_core_early_26053 __alloc_memory_core_early 2-3 26053 NULL
+keyctl_update_key_26061 keyctl_update_key 3 26061 NULL
+rx_rx_wa_density_dropped_frame_read_26095 rx_rx_wa_density_dropped_frame_read 3 26095 NULL
+skb_cow_26138 skb_cow 2 26138 NULL
+usb_dump_device_strings_26146 usb_dump_device_strings 0 26146 NULL
+copy_oldmem_page_26164 copy_oldmem_page 3-1 26164 NULL
+gfs2_xattr_acl_get_26166 gfs2_xattr_acl_get 0 26166 NULL nohasharray
+ath6kl_roam_table_read_26166 ath6kl_roam_table_read 3 26166 &gfs2_xattr_acl_get_26166
+mid_get_vbt_data_r1_26170 mid_get_vbt_data_r1 2 26170 NULL
+disk_devt_26180 disk_devt 0 26180 NULL
+get_registers_26187 get_registers 3 26187 NULL
+cgroup_setxattr_26188 cgroup_setxattr 4 26188 NULL
+ieee80211_if_fmt_dot11MeshTTL_26198 ieee80211_if_fmt_dot11MeshTTL 3 26198 NULL
+xfs_idata_realloc_26199 xfs_idata_realloc 2 26199 NULL
+mce_write_26201 mce_write 3 26201 NULL
+_scsih_change_queue_depth_26230 _scsih_change_queue_depth 2 26230 NULL
+bio_split_26235 bio_split 2 26235 NULL
+crypto_ctxsize_26278 crypto_ctxsize 0 26278 NULL
+wacom_set_device_mode_26280 wacom_set_device_mode 3 26280 NULL
+ext2_find_goal_26306 ext2_find_goal 0 26306 NULL
+snd_pcm_plug_client_channels_buf_26309 snd_pcm_plug_client_channels_buf 0-3 26309 NULL nohasharray
+pax_get_random_long_26309 pax_get_random_long 0 26309 &snd_pcm_plug_client_channels_buf_26309
+pwr_wake_on_host_read_26321 pwr_wake_on_host_read 3 26321 NULL
+ocfs2_duplicate_clusters_by_page_26357 ocfs2_duplicate_clusters_by_page 5 26357 NULL
+cifs_readdata_alloc_26360 cifs_readdata_alloc 1 26360 NULL
+dup_to_netobj_26363 dup_to_netobj 3 26363 NULL
+invalidate_inode_pages2_range_26403 invalidate_inode_pages2_range 0 26403 NULL
+dma_declare_contiguous_26455 dma_declare_contiguous 2 26455 NULL
+ib_alloc_device_26483 ib_alloc_device 1 26483 NULL
+ulong_write_file_26485 ulong_write_file 3 26485 NULL
+dvb_ca_en50221_io_ioctl_26490 dvb_ca_en50221_io_ioctl 2 26490 NULL
+read_vmcore_26501 read_vmcore 3 26501 NULL
+vfio_pci_set_msi_trigger_26507 vfio_pci_set_msi_trigger 3-4 26507 NULL
+iwl_dbgfs_rf_reset_read_26512 iwl_dbgfs_rf_reset_read 3 26512 NULL
+__vhost_add_used_n_26554 __vhost_add_used_n 3 26554 NULL
+ip6_addr_string_26568 ip6_addr_string 0 26568 NULL
+kvm_iommu_put_pages_26571 kvm_iommu_put_pages 2 26571 NULL
+rts51x_read_mem_26577 rts51x_read_mem 4 26577 NULL nohasharray
+batadv_receive_server_sync_packet_26577 batadv_receive_server_sync_packet 3 26577 &rts51x_read_mem_26577
+cirrusfb_get_memsize_26597 cirrusfb_get_memsize 0 26597 NULL
+__unmap_single_26604 __unmap_single 2-3 26604 NULL
+iommu_alloc_26621 iommu_alloc 4 26621 NULL
+pack_value_26625 pack_value 1 26625 NULL
+pwr_fix_tsf_ps_read_26627 pwr_fix_tsf_ps_read 3 26627 NULL
+irq_alloc_generic_chip_26650 irq_alloc_generic_chip 2 26650 NULL nohasharray
+inb_p_26650 inb_p 0 26650 &irq_alloc_generic_chip_26650
+cipso_v4_map_cat_rbm_hton_26680 cipso_v4_map_cat_rbm_hton 0 26680 NULL
+__alloc_pred_stack_26687 __alloc_pred_stack 2 26687 NULL
+rtllib_authentication_req_26713 rtllib_authentication_req 3 26713 NULL
+aty_ld_le32_26720 aty_ld_le32 0 26720 NULL
+nouveau_namedb_create__26732 nouveau_namedb_create_ 7 26732 NULL
+pipeline_tcp_rx_stat_fifo_int_read_26745 pipeline_tcp_rx_stat_fifo_int_read 3 26745 NULL
+srp_ring_alloc_26760 srp_ring_alloc 2 26760 NULL
+snd_hda_get_raw_connections_26762 snd_hda_get_raw_connections 0 26762 NULL
+qlcnic_alloc_sds_rings_26795 qlcnic_alloc_sds_rings 2 26795 NULL
+cipso_v4_genopt_26812 cipso_v4_genopt 0 26812 NULL
+iwl_trans_read_mem32_26825 iwl_trans_read_mem32 0 26825 NULL
+smk_write_load_26829 smk_write_load 3 26829 NULL
+sizeof_pwm_leds_priv_26830 sizeof_pwm_leds_priv 0-1 26830 NULL
+slgt_compat_ioctl_26834 slgt_compat_ioctl 3 26834 NULL
+__nodes_onto_26838 __nodes_onto 4 26838 NULL
+scnprint_id_26842 scnprint_id 3 26842 NULL
+ecryptfs_miscdev_write_26847 ecryptfs_miscdev_write 3 26847 NULL
+netxen_nic_hw_read_wx_128M_26858 netxen_nic_hw_read_wx_128M 2 26858 NULL
+svc_print_xprts_26881 svc_print_xprts 0 26881 NULL
+ext2_compat_ioctl_26883 ext2_compat_ioctl 3 26883 NULL
+slhc_uncompress_26905 slhc_uncompress 0-3 26905 NULL
+x25_asy_change_mtu_26928 x25_asy_change_mtu 2 26928 NULL
+compat_mtw_from_user_26932 compat_mtw_from_user 0 26932 NULL
+scsi_tgt_copy_sense_26933 scsi_tgt_copy_sense 3 26933 NULL
+pwr_ps_enter_read_26935 pwr_ps_enter_read 3 26935 NULL nohasharray
+sctp_setsockopt_adaptation_layer_26935 sctp_setsockopt_adaptation_layer 3 26935 &pwr_ps_enter_read_26935
+carl9170_handle_mpdu_26940 carl9170_handle_mpdu 3 26940 NULL nohasharray
+create_bm_block_list_26940 create_bm_block_list 0 26940 &carl9170_handle_mpdu_26940
+hecubafb_write_26942 hecubafb_write 3 26942 NULL
+extract_entropy_user_26952 extract_entropy_user 3 26952 NULL nohasharray
+do_trimming_26952 do_trimming 3 26952 &extract_entropy_user_26952
+pcf857x_irq_domain_map_26998 pcf857x_irq_domain_map 2 26998 NULL
+swiotlb_bounce_27046 swiotlb_bounce 2-1 27046 NULL
+ufs_alloc_fragments_27059 ufs_alloc_fragments 3-0-2 27059 NULL
+__videobuf_alloc_vb_27062 __videobuf_alloc_vb 1 27062 NULL
+snd_pcm_lib_period_bytes_27071 snd_pcm_lib_period_bytes 0 27071 NULL
+paravirt_read_msr_27077 paravirt_read_msr 0 27077 NULL
+alloc_fdmem_27083 alloc_fdmem 1 27083 NULL
+find_first_bit_27088 find_first_bit 0-2 27088 NULL
+btmrvl_hscmd_write_27089 btmrvl_hscmd_write 3 27089 NULL
+nes_reg_user_mr_27106 nes_reg_user_mr 2-3 27106 NULL
+__devcgroup_inode_permission_27108 __devcgroup_inode_permission 0 27108 NULL
+get_kernel_page_27133 get_kernel_page 0 27133 NULL
+drbd_get_capacity_27141 drbd_get_capacity 0 27141 NULL
+pms_capture_27142 pms_capture 4 27142 NULL
+btmrvl_hscfgcmd_write_27143 btmrvl_hscfgcmd_write 3 27143 NULL
+snd_compr_calc_avail_27165 snd_compr_calc_avail 0 27165 NULL
+i2400m_net_rx_27170 i2400m_net_rx 5 27170 NULL
+ieee80211_if_read_rc_rateidx_mask_5ghz_27183 ieee80211_if_read_rc_rateidx_mask_5ghz 3 27183 NULL
+mmc_blk_compat_ioctl_27194 mmc_blk_compat_ioctl 4 27194 NULL
+dbAllocAG_27228 dbAllocAG 0 27228 NULL
+rxrpc_request_key_27235 rxrpc_request_key 3 27235 NULL
+cfpkt_add_trail_27260 cfpkt_add_trail 3 27260 NULL
+__dma_map_cont_27289 __dma_map_cont 5 27289 NULL
+hpi_read_reg_27302 hpi_read_reg 0 27302 NULL
+copy_from_buf_27308 copy_from_buf 4-2 27308 NULL
+ath6kl_wmi_test_cmd_27312 ath6kl_wmi_test_cmd 3 27312 NULL
+ocfs2_blocks_to_clusters_27327 ocfs2_blocks_to_clusters 0-2 27327 NULL
+snd_pcm_oss_write2_27332 snd_pcm_oss_write2 3-0 27332 NULL
+afs_cell_create_27346 afs_cell_create 2 27346 NULL
+pcbit_stat_27364 pcbit_stat 2 27364 NULL
+init_memory_mapping_27395 init_memory_mapping 0 27395 NULL
+phys_pte_init_27411 phys_pte_init 0-3-2 27411 NULL
+ib_dma_map_sg_27413 ib_dma_map_sg 0 27413 NULL
+acpi_os_get_root_pointer_27416 acpi_os_get_root_pointer 0 27416 NULL nohasharray
+ieee80211_if_read_smps_27416 ieee80211_if_read_smps 3 27416 &acpi_os_get_root_pointer_27416
+pack_sg_list_27425 pack_sg_list 0-2 27425 NULL
+v4l2_ctrl_new_std_menu_items_27487 v4l2_ctrl_new_std_menu_items 4 27487 NULL
+set_tpl_pfs_27490 set_tpl_pfs 3 27490 NULL
+hcd_buffer_alloc_27495 hcd_buffer_alloc 2 27495 NULL
+qib_create_cq_27497 qib_create_cq 2 27497 NULL
+ip_set_get_h32_27498 ip_set_get_h32 0 27498 NULL
+btrfs_get_64_27499 btrfs_get_64 0 27499 NULL
+__usbnet_write_cmd_27500 __usbnet_write_cmd 7 27500 NULL
+garmin_read_process_27509 garmin_read_process 3 27509 NULL
+ib_copy_to_udata_27525 ib_copy_to_udata 3 27525 NULL
+snd_sonicvibes_getdmaa_27552 snd_sonicvibes_getdmaa 0 27552 NULL
+libipw_alloc_txb_27579 libipw_alloc_txb 1-2-3 27579 NULL
+read_flush_procfs_27642 read_flush_procfs 3 27642 NULL nohasharray
+nl80211_send_connect_result_27642 nl80211_send_connect_result 5-7 27642 &read_flush_procfs_27642 nohasharray
+ocfs2_xattr_ibody_get_27642 ocfs2_xattr_ibody_get 0 27642 &nl80211_send_connect_result_27642
+add_new_gdb_27643 add_new_gdb 3 27643 NULL
+qnx6_readpages_27657 qnx6_readpages 4 27657 NULL
+cdrom_read_cdda_old_27664 cdrom_read_cdda_old 4 27664 NULL
+set_bypass_pwoff_pfs_27669 set_bypass_pwoff_pfs 3 27669 NULL
+qword_get_27670 qword_get 0 27670 NULL
+ocfs2_extend_dir_27695 ocfs2_extend_dir 4 27695 NULL
+fs_path_add_from_extent_buffer_27702 fs_path_add_from_extent_buffer 4 27702 NULL
+evm_write_key_27715 evm_write_key 3 27715 NULL
+ieee80211_if_fmt_dot11MeshGateAnnouncementProtocol_27722 ieee80211_if_fmt_dot11MeshGateAnnouncementProtocol 3 27722 NULL
+reg_w_buf_27724 reg_w_buf 3 27724 NULL
+xfs_dir2_block_sfsize_27727 xfs_dir2_block_sfsize 0 27727 NULL
+a4t_cs_init_27734 a4t_cs_init 3 27734 NULL
+kcalloc_27770 kcalloc 1-2 27770 NULL
+twl4030_set_gpio_dataout_27792 twl4030_set_gpio_dataout 1 27792 NULL
+DivaSTraceGetMemotyRequirement_27797 DivaSTraceGetMemotyRequirement 0-1 27797 NULL
+ttm_object_file_init_27804 ttm_object_file_init 2 27804 NULL
+mpihelp_mul_27805 mpihelp_mul 5-3 27805 NULL
+fwtty_buffer_rx_27821 fwtty_buffer_rx 3 27821 NULL
+init_header_complete_27833 init_header_complete 0 27833 NULL nohasharray
+sys_listxattr_27833 sys_listxattr 3 27833 &init_header_complete_27833
+read_profile_27859 read_profile 3 27859 NULL
+sky2_pci_read16_27863 sky2_pci_read16 0 27863 NULL
+ieee80211_if_read_dot11MeshHWMProotInterval_27873 ieee80211_if_read_dot11MeshHWMProotInterval 3 27873 NULL
+unix_seqpacket_sendmsg_27893 unix_seqpacket_sendmsg 4 27893 NULL
+gluebi_write_27905 gluebi_write 3 27905 NULL
+bm_find_next_27929 bm_find_next 2 27929 NULL
+tracing_clock_write_27961 tracing_clock_write 3 27961 NULL
+tipc_media_addr_printf_27971 tipc_media_addr_printf 2 27971 NULL
+mic_rx_pkts_read_27972 mic_rx_pkts_read 3 27972 NULL
+f2fs_bio_alloc_27983 f2fs_bio_alloc 2 27983 NULL
+edt_ft5x06_debugfs_raw_data_read_28002 edt_ft5x06_debugfs_raw_data_read 3 28002 NULL
+snd_rawmidi_write_28008 snd_rawmidi_write 3 28008 NULL
+serial8250_port_size_28019 serial8250_port_size 0 28019 NULL
+sctp_setsockopt_maxburst_28041 sctp_setsockopt_maxburst 3 28041 NULL
+rts51x_xd_rw_28046 rts51x_xd_rw 3-4 28046 NULL
+cx231xx_init_vbi_isoc_28053 cx231xx_init_vbi_isoc 3-2 28053 NULL
+pool_status_28055 pool_status 5 28055 NULL
+lpfc_idiag_mbxacc_read_28061 lpfc_idiag_mbxacc_read 3 28061 NULL
+tx_frag_bad_mblk_num_read_28064 tx_frag_bad_mblk_num_read 3 28064 NULL
+ext4_read_block_bitmap_nowait_28078 ext4_read_block_bitmap_nowait 2 28078 NULL
+GetRecvByte_28082 GetRecvByte 0 28082 NULL
+platform_get_irq_28088 platform_get_irq 0 28088 NULL
+gdth_init_isa_28091 gdth_init_isa 1 28091 NULL
+mmc_test_alloc_mem_28102 mmc_test_alloc_mem 3-2 28102 NULL
+rx_defrag_need_defrag_read_28117 rx_defrag_need_defrag_read 3 28117 NULL
+vgacon_adjust_height_28124 vgacon_adjust_height 2 28124 NULL
+video_read_28148 video_read 3 28148 NULL
+snd_midi_channel_alloc_set_28153 snd_midi_channel_alloc_set 1 28153 NULL
+stats_dot11FCSErrorCount_read_28154 stats_dot11FCSErrorCount_read 3 28154 NULL
+vread_28173 vread 0 28173 NULL
+macvtap_get_user_28185 macvtap_get_user 4 28185 NULL
+d_path_28198 d_path 0 28198 NULL
+nouveau_mxm_create__28200 nouveau_mxm_create_ 4 28200 NULL
+__qp_memcpy_from_queue_28220 __qp_memcpy_from_queue 3-4 28220 NULL
+line6_alloc_sysex_buffer_28225 line6_alloc_sysex_buffer 4 28225 NULL nohasharray
+set_dis_disc_pfs_28225 set_dis_disc_pfs 3 28225 &line6_alloc_sysex_buffer_28225
+amd_nb_num_28228 amd_nb_num 0 28228 NULL
+ext4_validate_block_bitmap_28243 ext4_validate_block_bitmap 3 28243 NULL
+usemap_size_28281 usemap_size 0 28281 NULL
+dma_map_sg_attrs_28289 dma_map_sg_attrs 0 28289 NULL
+acpi_register_gsi_xen_28305 acpi_register_gsi_xen 2 28305 NULL nohasharray
+nouveau_compat_ioctl_28305 nouveau_compat_ioctl 2 28305 &acpi_register_gsi_xen_28305
+__mlock_vma_pages_range_28315 __mlock_vma_pages_range 2-3 28315 NULL
+snd_pcm_oss_read_28317 snd_pcm_oss_read 3 28317 NULL
+bm_entry_write_28338 bm_entry_write 3 28338 NULL
+snapshot_write_28351 snapshot_write 3 28351 NULL
+sys_writev_28384 sys_writev 3 28384 NULL
+dlmfs_file_read_28385 dlmfs_file_read 3 28385 NULL
+tx_frag_cache_miss_read_28394 tx_frag_cache_miss_read 3 28394 NULL
+set_bypass_pfs_28395 set_bypass_pfs 3 28395 NULL
+subdev_ioctl_28417 subdev_ioctl 2 28417 NULL
+__split_large_page_28429 __split_large_page 2 28429 NULL
+mpage_readpages_28436 mpage_readpages 3 28436 NULL
+set_memory_uc_28439 set_memory_uc 1 28439 NULL
+snd_emu10k1_efx_read_28452 snd_emu10k1_efx_read 2 28452 NULL
+key_mic_failures_read_28457 key_mic_failures_read 3 28457 NULL
+alloc_irq_cpu_rmap_28459 alloc_irq_cpu_rmap 1 28459 NULL
+vmw_du_crtc_cursor_set_28479 vmw_du_crtc_cursor_set 4-5 28479 NULL
+ocfs2_backup_super_blkno_28484 ocfs2_backup_super_blkno 0-2 28484 NULL
+max_response_pages_28492 max_response_pages 0 28492 NULL
+clear_discard_28494 clear_discard 2 28494 NULL
+ps_poll_upsd_utilization_read_28519 ps_poll_upsd_utilization_read 3 28519 NULL
+__next_node_28521 __next_node 1 28521 NULL
+i2400m_tx_stats_read_28527 i2400m_tx_stats_read 3 28527 NULL
+sel_read_policycap_28544 sel_read_policycap 3 28544 NULL
+run_delalloc_range_28545 run_delalloc_range 3 28545 NULL nohasharray
+mptctl_getiocinfo_28545 mptctl_getiocinfo 2 28545 &run_delalloc_range_28545
+b43legacy_debugfs_write_28556 b43legacy_debugfs_write 3 28556 NULL
+asymmetric_verify_28567 asymmetric_verify 3 28567 NULL
+phys_pud_init_28574 phys_pud_init 0-3-2 28574 NULL
+cfg80211_send_rx_auth_28580 cfg80211_send_rx_auth 3 28580 NULL
+oxygen_read32_28582 oxygen_read32 0 28582 NULL
+ocfs2_read_dir_block_28587 ocfs2_read_dir_block 2 28587 NULL
+extract_entropy_28604 extract_entropy 3-5 28604 NULL
+kfifo_unused_28612 kfifo_unused 0 28612 NULL
+mp_override_legacy_irq_28618 mp_override_legacy_irq 4 28618 NULL
+snd_nm256_capture_copy_28622 snd_nm256_capture_copy 5-3 28622 NULL
+_set_range_28627 _set_range 3 28627 NULL
+v4l2_compat_ioctl32_28630 v4l2_compat_ioctl32 3 28630 NULL
+setup_usemap_28636 setup_usemap 3-4 28636 NULL
+blk_queue_resize_tags_28670 blk_queue_resize_tags 2 28670 NULL
+__dev_alloc_skb_28681 __dev_alloc_skb 1 28681 NULL
+nl80211_send_new_peer_candidate_28692 nl80211_send_new_peer_candidate 5 28692 NULL nohasharray
+kvm_mmu_get_page_28692 kvm_mmu_get_page 2 28692 &nl80211_send_new_peer_candidate_28692
+drm_plane_init_28731 drm_plane_init 6 28731 NULL
+spi_execute_28736 spi_execute 5 28736 NULL
+snd_pcm_aio_write_28738 snd_pcm_aio_write 3 28738 NULL nohasharray
+phantom_compat_ioctl_28738 phantom_compat_ioctl 3 28738 &snd_pcm_aio_write_28738
+read_file_btcoex_28743 read_file_btcoex 3 28743 NULL
+ath6kl_get_num_reg_28780 ath6kl_get_num_reg 0 28780 NULL
+dvb_net_sec_callback_28786 dvb_net_sec_callback 2 28786 NULL
+sel_write_member_28800 sel_write_member 3 28800 NULL
+cgroup_file_read_28804 cgroup_file_read 3 28804 NULL
+btrfs_ref_to_path_28809 btrfs_ref_to_path 0 28809 NULL
+memory_bm_create_28814 memory_bm_create 0 28814 NULL
+iwl_dbgfs_rxon_filter_flags_read_28832 iwl_dbgfs_rxon_filter_flags_read 3 28832 NULL
+vp_request_msix_vectors_28849 vp_request_msix_vectors 2 28849 NULL
+ipv6_renew_options_28867 ipv6_renew_options 5 28867 NULL
+packet_sendmsg_spkt_28885 packet_sendmsg_spkt 4 28885 NULL
+to_cblock_28899 to_cblock 0-1 28899 NULL
+da9055_group_write_28904 da9055_group_write 2-3 28904 NULL
+ps_upsd_timeouts_read_28924 ps_upsd_timeouts_read 3 28924 NULL
+ocfs2_frozen_trigger_28929 ocfs2_frozen_trigger 4 28929 NULL
+push_rx_28939 push_rx 3 28939 NULL
+btrfs_trim_block_group_28963 btrfs_trim_block_group 3 28963 NULL
+alloc_sched_domains_28972 alloc_sched_domains 1 28972 NULL
+ext4_mb_add_groupinfo_28988 ext4_mb_add_groupinfo 2 28988 NULL
+bin_uuid_28999 bin_uuid 3 28999 NULL
+xz_dec_init_29029 xz_dec_init 2 29029 NULL
+sys_fcntl64_29031 sys_fcntl64 3 29031 NULL
+ieee80211_if_read_ht_opmode_29044 ieee80211_if_read_ht_opmode 3 29044 NULL
+rxrpc_sendmsg_29049 rxrpc_sendmsg 4 29049 NULL
+iso_packets_buffer_init_29061 iso_packets_buffer_init 3-4 29061 NULL
+lpfc_idiag_extacc_drivr_get_29067 lpfc_idiag_extacc_drivr_get 0-3 29067 NULL
+memblock_alloc_base_nid_29072 memblock_alloc_base_nid 1-2 29072 NULL
+sctp_getsockopt_assoc_stats_29074 sctp_getsockopt_assoc_stats 2 29074 NULL
+mark_extents_written_29082 mark_extents_written 2 29082 NULL
+isdn_ppp_write_29109 isdn_ppp_write 4 29109 NULL
+snprintf_29125 snprintf 0 29125 NULL
+iov_shorten_29130 iov_shorten 0 29130 NULL
+proc_scsi_write_29142 proc_scsi_write 3 29142 NULL
+reshape_ring_29147 reshape_ring 2 29147 NULL
+alloc_irqs_from_29152 alloc_irqs_from 1-2 29152 NULL
+drm_property_create_enum_29201 drm_property_create_enum 5 29201 NULL
+wusb_prf_256_29203 wusb_prf_256 7 29203 NULL nohasharray
+alloc_group_attrs_29203 alloc_group_attrs 3 29203 &wusb_prf_256_29203
+__mm_populate_29204 __mm_populate 1 29204 NULL
+comedi_alloc_subdevices_29207 comedi_alloc_subdevices 2 29207 NULL
+do_shrinker_shrink_29208 do_shrinker_shrink 0 29208 NULL
+iwl_dbgfs_temperature_read_29224 iwl_dbgfs_temperature_read 3 29224 NULL
+devm_ioremap_29235 devm_ioremap 2-3 29235 NULL
+irq_domain_add_linear_29236 irq_domain_add_linear 2 29236 NULL
+recover_peb_29238 recover_peb 6-7 29238 NULL
+security_context_to_sid_core_29248 security_context_to_sid_core 2 29248 NULL
+block_div_29268 block_div 0-1-2 29268 NULL
+prism2_set_genericelement_29277 prism2_set_genericelement 3 29277 NULL
+bitmap_ord_to_pos_29279 bitmap_ord_to_pos 3 29279 NULL
+sn9c102_read_29305 sn9c102_read 3 29305 NULL
+lo_compat_ioctl_29336 lo_compat_ioctl 4 29336 NULL
+tun_put_user_29337 tun_put_user 5 29337 NULL
+__alloc_ei_netdev_29338 __alloc_ei_netdev 1 29338 NULL
+alloc_and_copy_ftrace_hash_29368 alloc_and_copy_ftrace_hash 1 29368 NULL
+mwifiex_cfg80211_mgmt_tx_29387 mwifiex_cfg80211_mgmt_tx 7 29387 NULL
+pca953x_irq_setup_29407 pca953x_irq_setup 3 29407 NULL
+mempool_create_29437 mempool_create 1 29437 NULL
+crypto_ahash_alignmask_29445 crypto_ahash_alignmask 0 29445 NULL
+apei_exec_ctx_get_output_29457 apei_exec_ctx_get_output 0 29457 NULL
+validate_scan_freqs_29462 validate_scan_freqs 0 29462 NULL
+do_register_entry_29478 do_register_entry 4 29478 NULL
+simple_strtoul_29480 simple_strtoul 0 29480 NULL
+btmrvl_pscmd_write_29504 btmrvl_pscmd_write 3 29504 NULL
+btrfs_file_extent_disk_bytenr_29505 btrfs_file_extent_disk_bytenr 0 29505 NULL
+atk_debugfs_ggrp_read_29522 atk_debugfs_ggrp_read 3 29522 NULL
+_regmap_raw_write_29541 _regmap_raw_write 4-2 29541 NULL
+set_brk_29551 set_brk 1 29551 NULL nohasharray
+ftrace_write_29551 ftrace_write 3 29551 &set_brk_29551
+idetape_queue_rw_tail_29562 idetape_queue_rw_tail 3 29562 NULL
+leaf_dealloc_29566 leaf_dealloc 3 29566 NULL nohasharray
+alloc_empty_pages_29566 alloc_empty_pages 2 29566 &leaf_dealloc_29566
+lbs_lowsnr_read_29571 lbs_lowsnr_read 3 29571 NULL
+pvr2_hdw_report_unlocked_29589 pvr2_hdw_report_unlocked 4 29589 NULL
+slots_per_page_29601 slots_per_page 0 29601 NULL
+qla4_82xx_pci_set_window_29605 qla4_82xx_pci_set_window 0-2 29605 NULL
+alloc_low_pages_29623 alloc_low_pages 1 29623 NULL
+nla_get_u16_29624 nla_get_u16 0 29624 NULL
+tx_frag_cache_hit_read_29639 tx_frag_cache_hit_read 3 29639 NULL
+lowmem_page_address_29649 lowmem_page_address 0 29649 NULL
+sctp_make_abort_user_29654 sctp_make_abort_user 3 29654 NULL
+br_send_bpdu_29669 br_send_bpdu 3 29669 NULL
+sisusb_write_mem_bulk_29678 sisusb_write_mem_bulk 4 29678 NULL
+sd_alloc_ctl_entry_29708 sd_alloc_ctl_entry 1 29708 NULL nohasharray
+posix_acl_from_xattr_29708 posix_acl_from_xattr 3 29708 &sd_alloc_ctl_entry_29708
+probes_write_29711 probes_write 3 29711 NULL
+emi62_writememory_29731 emi62_writememory 4 29731 NULL
+read_cis_cache_29735 read_cis_cache 4 29735 NULL
+ip_vs_conn_fill_param_sync_29771 ip_vs_conn_fill_param_sync 6 29771 NULL
+dbAlloc_29794 dbAlloc 0 29794 NULL
+ext4_trim_all_free_29806 ext4_trim_all_free 4-3-2 29806 NULL
+tcp_sendpage_29829 tcp_sendpage 4 29829 NULL
+scan_bitmap_block_29840 scan_bitmap_block 4 29840 NULL
+__probe_kernel_write_29842 __probe_kernel_write 3 29842 NULL
+kvm_read_hva_atomic_29848 kvm_read_hva_atomic 3 29848 NULL
+ipv6_setsockopt_29871 ipv6_setsockopt 5 29871 NULL
+scsi_end_request_29876 scsi_end_request 3 29876 NULL
+crypto_aead_alignmask_29885 crypto_aead_alignmask 0 29885 NULL
+nfc_targets_found_29886 nfc_targets_found 3 29886 NULL
+ext4_xattr_set_acl_29930 ext4_xattr_set_acl 4 29930 NULL
+__btrfs_getxattr_29947 __btrfs_getxattr 0 29947 NULL
+irias_add_octseq_attrib_29983 irias_add_octseq_attrib 4 29983 NULL nohasharray
+diva_os_get_context_size_29983 diva_os_get_context_size 0 29983 &irias_add_octseq_attrib_29983
+arch_setup_dmar_msi_29992 arch_setup_dmar_msi 1 29992 NULL
+vmci_host_setup_notify_30002 vmci_host_setup_notify 2 30002 NULL
+utf32_to_utf8_30028 utf32_to_utf8 0 30028 NULL
+alloc_netdev_mqs_30030 alloc_netdev_mqs 1 30030 NULL
+scsi_vpd_inquiry_30040 scsi_vpd_inquiry 4 30040 NULL
+drp_wmove_30043 drp_wmove 4 30043 NULL
+cxgbi_ddp_reserve_30091 cxgbi_ddp_reserve 4 30091 NULL
+snd_midi_channel_init_set_30092 snd_midi_channel_init_set 1 30092 NULL
+tg3_run_loopback_30093 tg3_run_loopback 2 30093 NULL
+rx_filter_data_filter_read_30098 rx_filter_data_filter_read 3 30098 NULL nohasharray
+dma_to_phys_30098 dma_to_phys 0-2 30098 &rx_filter_data_filter_read_30098
+skb_pagelen_30113 skb_pagelen 0 30113 NULL
+spi_async_locked_30117 spi_async_locked 0 30117 NULL
+calgary_unmap_page_30130 calgary_unmap_page 2-3 30130 NULL
+_osd_req_sizeof_alist_header_30134 _osd_req_sizeof_alist_header 0 30134 NULL
+u_memcpya_30139 u_memcpya 2-3 30139 NULL
+cx25821_video_ioctl_30188 cx25821_video_ioctl 2 30188 NULL
+mempool_create_page_pool_30189 mempool_create_page_pool 1 30189 NULL
+drm_property_create_bitmask_30195 drm_property_create_bitmask 5 30195 NULL
+usblp_ioctl_30203 usblp_ioctl 2 30203 NULL
+nfs_idmap_request_key_30208 nfs_idmap_request_key 3 30208 NULL
+read_4k_modal_eeprom_30212 read_4k_modal_eeprom 3 30212 NULL
+snd_ac97_pcm_assign_30218 snd_ac97_pcm_assign 2 30218 NULL
+f2fs_compat_ioctl_30261 f2fs_compat_ioctl 3 30261 NULL
+isr_pci_pm_read_30271 isr_pci_pm_read 3 30271 NULL
+compat_readv_30273 compat_readv 3 30273 NULL
+lapic_register_intr_30279 lapic_register_intr 1 30279 NULL
+skcipher_sendmsg_30290 skcipher_sendmsg 4 30290 NULL
+pipeline_sec_frag_swi_read_30294 pipeline_sec_frag_swi_read 3 30294 NULL
+tcp_sendmsg_30296 tcp_sendmsg 4 30296 NULL
+ext4_acl_from_disk_30320 ext4_acl_from_disk 2 30320 NULL
+generic_ptrace_pokedata_30338 generic_ptrace_pokedata 2 30338 NULL
+resource_from_user_30341 resource_from_user 3 30341 NULL
+__vmalloc_node_flags_30352 __vmalloc_node_flags 1 30352 NULL
+sys_get_mempolicy_30379 sys_get_mempolicy 3-4 30379 NULL
+mangle_sdp_packet_30381 mangle_sdp_packet 10 30381 NULL
+c4iw_init_resource_30393 c4iw_init_resource 2-3 30393 NULL
+get_kernel_pages_30397 get_kernel_pages 0 30397 NULL
+_drbd_bm_find_next_zero_30415 _drbd_bm_find_next_zero 2 30415 NULL
+vb2_fop_write_30420 vb2_fop_write 3 30420 NULL
+tx_tx_template_prepared_read_30424 tx_tx_template_prepared_read 3 30424 NULL
+mq_create_30425 mq_create 1 30425 NULL
+enable_write_30456 enable_write 3 30456 NULL
+tx_tx_template_programmed_read_30461 tx_tx_template_programmed_read 3 30461 NULL
+urandom_read_30462 urandom_read 3 30462 NULL
+zoran_ioctl_30465 zoran_ioctl 2 30465 NULL
+ocrdma_reg_user_mr_30474 ocrdma_reg_user_mr 2-3 30474 NULL
+write_head_30481 write_head 4 30481 NULL
+adu_write_30487 adu_write 3 30487 NULL
+debug_debug2_read_30526 debug_debug2_read 3 30526 NULL
+batadv_dat_snoop_incoming_arp_request_30548 batadv_dat_snoop_incoming_arp_request 3 30548 NULL
+disk_expand_part_tbl_30561 disk_expand_part_tbl 2 30561 NULL
+set_le_30581 set_le 4 30581 NULL
+from_cblock_30582 from_cblock 0-1 30582 NULL
+blk_init_tags_30592 blk_init_tags 1 30592 NULL
+i2c_hid_get_report_length_30598 i2c_hid_get_report_length 0 30598 NULL
+sgl_map_user_pages_30610 sgl_map_user_pages 2-3-4 30610 NULL
+macvtap_sendmsg_30629 macvtap_sendmsg 4 30629 NULL
+ieee80211_if_read_dot11MeshAwakeWindowDuration_30631 ieee80211_if_read_dot11MeshAwakeWindowDuration 3 30631 NULL
+compat_raw_setsockopt_30634 compat_raw_setsockopt 5 30634 NULL
+agp_remap_30665 agp_remap 2 30665 NULL
+jffs2_flash_read_30667 jffs2_flash_read 0 30667 NULL
+il_free_pages_30692 il_free_pages 2 30692 NULL
+dccp_setsockopt_ccid_30701 dccp_setsockopt_ccid 4 30701 NULL
+lbs_debugfs_read_30721 lbs_debugfs_read 3 30721 NULL
+snd_nm256_playback_silence_30727 snd_nm256_playback_silence 4-3 30727 NULL
+snapshot_status_30744 snapshot_status 5 30744 NULL
+tcf_csum_ipv4_udp_30777 tcf_csum_ipv4_udp 4 30777 NULL
+smk_read_doi_30813 smk_read_doi 3 30813 NULL
+get_kobj_path_length_30831 get_kobj_path_length 0 30831 NULL
+sctp_setsockopt_auth_chunk_30843 sctp_setsockopt_auth_chunk 3 30843 NULL
+cfg80211_rx_mgmt_30844 cfg80211_rx_mgmt 5 30844 NULL
+hda_hwdep_ioctl_compat_30847 hda_hwdep_ioctl_compat 4 30847 NULL
+ieee80211_if_fmt_dropped_frames_no_route_30884 ieee80211_if_fmt_dropped_frames_no_route 3 30884 NULL
+iommu_map_mmio_space_30919 iommu_map_mmio_space 1 30919 NULL
+sctp_setsockopt_rtoinfo_30941 sctp_setsockopt_rtoinfo 3 30941 NULL
+tty_insert_flip_string_flags_30969 tty_insert_flip_string_flags 4 30969 NULL
+huge_page_mask_30981 huge_page_mask 0 30981 NULL
+i2400mu_rx_size_grow_30989 i2400mu_rx_size_grow 0 30989 NULL
+lbs_host_sleep_read_31013 lbs_host_sleep_read 3 31013 NULL
+phys_pmd_init_31024 phys_pmd_init 0-3-2 31024 NULL
+compat_sys_mq_timedsend_31060 compat_sys_mq_timedsend 3 31060 NULL
+lbs_failcount_read_31063 lbs_failcount_read 3 31063 NULL
+find_next_bit_le_31064 find_next_bit_le 0-2-3 31064 NULL
+sys_mincore_31079 sys_mincore 1 31079 NULL
+ttm_bo_ioremap_31082 ttm_bo_ioremap 2-3 31082 NULL
+sctp_setsockopt_context_31091 sctp_setsockopt_context 3 31091 NULL
+compat_sys_get_mempolicy_31109 compat_sys_get_mempolicy 3-4 31109 NULL
+depth_read_31112 depth_read 3 31112 NULL
+ssb_read16_31139 ssb_read16 0 31139 NULL
+kimage_normal_alloc_31140 kimage_normal_alloc 3 31140 NULL
+size_inside_page_31141 size_inside_page 0 31141 NULL
+w9966_v4l_read_31148 w9966_v4l_read 3 31148 NULL
+ch_do_scsi_31171 ch_do_scsi 4 31171 NULL
+acpi_ex_system_memory_space_handler_31192 acpi_ex_system_memory_space_handler 2 31192 NULL
+r592_read_fifo_pio_31198 r592_read_fifo_pio 3 31198 NULL
+mtdchar_readoob_31200 mtdchar_readoob 4 31200 NULL
+__btrfs_free_reserved_extent_31207 __btrfs_free_reserved_extent 2 31207 NULL
+kvm_mmu_page_fault_31213 kvm_mmu_page_fault 2 31213 NULL
+cpumask_weight_31215 cpumask_weight 0 31215 NULL
+__read_reg_31216 __read_reg 0 31216 NULL
+atm_get_addr_31221 atm_get_addr 3 31221 NULL
+cyy_readb_31240 cyy_readb 0 31240 NULL
+_create_sg_bios_31244 _create_sg_bios 4 31244 NULL
+ieee80211_if_read_last_beacon_31257 ieee80211_if_read_last_beacon 3 31257 NULL
+sctp_tsnmap_find_gap_ack_31272 sctp_tsnmap_find_gap_ack 3-2 31272 NULL
+uvc_simplify_fraction_31303 uvc_simplify_fraction 3 31303 NULL
+sisusbcon_scroll_31315 sisusbcon_scroll 5-2-3 31315 NULL
+command_file_write_31318 command_file_write 3 31318 NULL
+em28xx_init_usb_xfer_31337 em28xx_init_usb_xfer 4-6 31337 NULL
+xprt_rdma_allocate_31372 xprt_rdma_allocate 2 31372 NULL
+vb2_vmalloc_get_userptr_31374 vb2_vmalloc_get_userptr 3-2 31374 NULL
+trace_parser_get_init_31379 trace_parser_get_init 2 31379 NULL
+inb_31388 inb 0 31388 NULL
+key_ifindex_read_31411 key_ifindex_read 3 31411 NULL
+mcs7830_set_reg_31413 mcs7830_set_reg 3 31413 NULL
+TSS_checkhmac1_31429 TSS_checkhmac1 5 31429 NULL
+snd_aw2_saa7146_get_hw_ptr_capture_31431 snd_aw2_saa7146_get_hw_ptr_capture 0 31431 NULL
+acpi_sci_ioapic_setup_31445 acpi_sci_ioapic_setup 4 31445 NULL
+opera1_xilinx_rw_31453 opera1_xilinx_rw 5 31453 NULL
+input_get_new_minor_31464 input_get_new_minor 1 31464 NULL
+do_fcntl_31468 do_fcntl 3 31468 NULL
+xfs_btree_get_numrecs_31477 xfs_btree_get_numrecs 0 31477 NULL
+alg_setkey_31485 alg_setkey 3 31485 NULL
+rds_message_map_pages_31487 rds_message_map_pages 2 31487 NULL
+qsfp_2_read_31491 qsfp_2_read 3 31491 NULL
+__alloc_bootmem_31498 __alloc_bootmem 1-2 31498 NULL
+rmode_tss_base_31510 rmode_tss_base 0 31510 NULL
+hidraw_write_31536 hidraw_write 3 31536 NULL
+mtd_div_by_eb_31543 mtd_div_by_eb 0-1 31543 NULL
+usbvision_read_31555 usbvision_read 3 31555 NULL
+normalize_31566 normalize 0-1-2 31566 NULL
+tx_frag_tkip_called_read_31575 tx_frag_tkip_called_read 3 31575 NULL
+get_max_inline_xattr_value_size_31578 get_max_inline_xattr_value_size 0 31578 NULL
+osst_write_31581 osst_write 3 31581 NULL
+snd_compr_get_avail_31584 snd_compr_get_avail 0 31584 NULL
+iwl_dbgfs_ucode_tx_stats_read_31611 iwl_dbgfs_ucode_tx_stats_read 3 31611 NULL
+mtd_get_user_prot_info_31616 mtd_get_user_prot_info 0 31616 NULL
+arvo_sysfs_read_31617 arvo_sysfs_read 6 31617 NULL
+videobuf_read_one_31637 videobuf_read_one 3 31637 NULL
+pod_alloc_sysex_buffer_31651 pod_alloc_sysex_buffer 3 31651 NULL
+xfer_secondary_pool_31661 xfer_secondary_pool 2 31661 NULL
+emulator_set_cr_31665 emulator_set_cr 3 31665 NULL
+__lgread_31668 __lgread 4 31668 NULL
+symbol_string_31670 symbol_string 0 31670 NULL
+_usb_writeN_sync_31682 _usb_writeN_sync 4 31682 NULL
+forced_ps_read_31685 forced_ps_read 3 31685 NULL
+reiserfs_in_journal_31689 reiserfs_in_journal 3 31689 NULL
+audit_log_n_string_31705 audit_log_n_string 3 31705 NULL
+ath6kl_wmi_send_probe_response_cmd_31728 ath6kl_wmi_send_probe_response_cmd 6 31728 NULL nohasharray
+gfn_to_hva_read_31728 gfn_to_hva_read 2 31728 &ath6kl_wmi_send_probe_response_cmd_31728
+utf16s_to_utf8s_31735 utf16s_to_utf8s 0 31735 NULL
+shmem_pwrite_slow_31741 shmem_pwrite_slow 3 31741 NULL
+NCR_700_change_queue_depth_31742 NCR_700_change_queue_depth 2 31742 NULL nohasharray
+input_abs_get_max_31742 input_abs_get_max 0 31742 &NCR_700_change_queue_depth_31742
+bcm_char_read_31750 bcm_char_read 3 31750 NULL
+snd_seq_device_new_31753 snd_seq_device_new 4 31753 NULL
+set_memory_wb_31761 set_memory_wb 1 31761 NULL
+usblp_cache_device_id_string_31790 usblp_cache_device_id_string 0 31790 NULL
+get_count_order_31800 get_count_order 0 31800 NULL
+ecryptfs_send_message_locked_31801 ecryptfs_send_message_locked 2 31801 NULL
+isr_rx_procs_read_31804 isr_rx_procs_read 3 31804 NULL
+strnlen_user_31815 strnlen_user 0-2 31815 NULL
+sta_last_signal_read_31818 sta_last_signal_read 3 31818 NULL
+drm_mode_crtc_set_gamma_size_31881 drm_mode_crtc_set_gamma_size 2 31881 NULL
+ddb_output_write_31902 ddb_output_write 3 31902 NULL
+xattr_permission_31907 xattr_permission 0 31907 NULL
+new_dir_31919 new_dir 3 31919 NULL
+kmem_alloc_31920 kmem_alloc 1 31920 NULL
+guestwidth_to_adjustwidth_31937 guestwidth_to_adjustwidth 0-1 31937 NULL
+iov_iter_copy_from_user_31942 iov_iter_copy_from_user 4 31942 NULL
+vb2_write_31948 vb2_write 3 31948 NULL
+pvr2_ctrl_get_valname_31951 pvr2_ctrl_get_valname 4 31951 NULL
+copy_from_user_toio_31966 copy_from_user_toio 3 31966 NULL
+mtd_add_partition_31971 mtd_add_partition 3 31971 NULL
+find_next_zero_bit_31990 find_next_zero_bit 0-2-3 31990 NULL
+default_setup_hpet_msi_31991 default_setup_hpet_msi 1 31991 NULL
+tps6586x_irq_map_32002 tps6586x_irq_map 2 32002 NULL
+calc_hmac_32010 calc_hmac 3 32010 NULL
+vmcs_read64_32012 vmcs_read64 0 32012 NULL
+aead_len_32021 aead_len 0 32021 NULL
+ocfs2_remove_extent_32032 ocfs2_remove_extent 4-3 32032 NULL
+posix_acl_set_32037 posix_acl_set 4 32037 NULL
+vmw_cursor_update_dmabuf_32045 vmw_cursor_update_dmabuf 3-4 32045 NULL
+sys_sched_setaffinity_32046 sys_sched_setaffinity 2 32046 NULL
+proc_scsi_devinfo_write_32064 proc_scsi_devinfo_write 3 32064 NULL
+cfg80211_send_unprot_deauth_32080 cfg80211_send_unprot_deauth 3 32080 NULL
+bio_alloc_32095 bio_alloc 2 32095 NULL
+alloc_pwms_32100 alloc_pwms 1-2 32100 NULL
+ath6kl_fwlog_read_32101 ath6kl_fwlog_read 3 32101 NULL
+disk_status_32120 disk_status 4 32120 NULL
+venus_link_32165 venus_link 5 32165 NULL
+do_writepages_32173 do_writepages 0 32173 NULL nohasharray
+ntfs_rl_realloc_nofail_32173 ntfs_rl_realloc_nofail 3 32173 &do_writepages_32173
+load_header_32183 load_header 0 32183 NULL
+ubi_wl_scrub_peb_32196 ubi_wl_scrub_peb 0 32196 NULL
+wusb_ccm_mac_32199 wusb_ccm_mac 7 32199 NULL
+riva_get_cmap_len_32218 riva_get_cmap_len 0 32218 NULL
+lbs_lowrssi_read_32242 lbs_lowrssi_read 3 32242 NULL
+ocfs2_xattr_find_entry_32260 ocfs2_xattr_find_entry 0 32260 NULL
+fb_compat_ioctl_32265 fb_compat_ioctl 3 32265 NULL
+vmalloc_user_32308 vmalloc_user 1 32308 NULL
+hex_string_32310 hex_string 0 32310 NULL
+nouveau_bar_create__32332 nouveau_bar_create_ 4 32332 NULL
+nl80211_send_mlme_event_32337 nl80211_send_mlme_event 4 32337 NULL
+t4_alloc_mem_32342 t4_alloc_mem 1 32342 NULL
+dispatch_ioctl_32357 dispatch_ioctl 2 32357 NULL
+sel_read_initcon_32362 sel_read_initcon 3 32362 NULL
+_drbd_bm_find_next_32372 _drbd_bm_find_next 2 32372 NULL
+usbtmc_read_32377 usbtmc_read 3 32377 NULL
+qla4_82xx_pci_mem_write_2M_32398 qla4_82xx_pci_mem_write_2M 2 32398 NULL
+xfs_iext_add_indirect_multi_32400 xfs_iext_add_indirect_multi 3 32400 NULL
+vmci_qp_alloc_32405 vmci_qp_alloc 3-5 32405 NULL
+log_text_32428 log_text 0 32428 NULL
+regmap_irq_map_32429 regmap_irq_map 2 32429 NULL
+hid_input_report_32458 hid_input_report 4 32458 NULL
+cache_status_32462 cache_status 5 32462 NULL
+ieee80211_fill_mesh_addresses_32465 ieee80211_fill_mesh_addresses 0 32465 NULL
+ide_driver_proc_write_32493 ide_driver_proc_write 3 32493 NULL
+ctrl_std_val_to_sym_32516 ctrl_std_val_to_sym 5 32516 NULL
+disconnect_32521 disconnect 4 32521 NULL
+qsfp_read_32522 qsfp_read 0-4-2 32522 NULL
+ilo_read_32531 ilo_read 3 32531 NULL
+ieee80211_if_read_estab_plinks_32533 ieee80211_if_read_estab_plinks 3 32533 NULL
+gnttab_set_unmap_op_32534 gnttab_set_unmap_op 2 32534 NULL
+ieee80211_send_auth_32543 ieee80211_send_auth 6 32543 NULL
+format_devstat_counter_32550 format_devstat_counter 3 32550 NULL
+__first_node_32558 __first_node 0 32558 NULL
+aes_encrypt_fail_read_32562 aes_encrypt_fail_read 3 32562 NULL
+pnp_mem_len_32584 pnp_mem_len 0 32584 NULL
+mem_swapout_entry_32586 mem_swapout_entry 3 32586 NULL
+pipeline_tcp_tx_stat_fifo_int_read_32589 pipeline_tcp_tx_stat_fifo_int_read 3 32589 NULL
+read_file_beacon_32595 read_file_beacon 3 32595 NULL
+ieee80211_if_read_dropped_frames_congestion_32603 ieee80211_if_read_dropped_frames_congestion 3 32603 NULL
+sys_set_mempolicy_32608 sys_set_mempolicy 3 32608 NULL
+cfg80211_roamed_32632 cfg80211_roamed 5-7 32632 NULL
+ieee80211_hdrlen_32637 ieee80211_hdrlen 0 32637 NULL
+ite_decode_bytes_32642 ite_decode_bytes 3 32642 NULL
+kvmalloc_32646 kvmalloc 1 32646 NULL
+ib_sg_dma_len_32649 ib_sg_dma_len 0 32649 NULL
+generic_readlink_32654 generic_readlink 3 32654 NULL
+move_addr_to_kernel_32673 move_addr_to_kernel 2 32673 NULL
+jfs_readpages_32702 jfs_readpages 4 32702 NULL
+snd_hwdep_ioctl_compat_32736 snd_hwdep_ioctl_compat 3 32736 NULL
+get_arg_page_32746 get_arg_page 2 32746 NULL
+megasas_change_queue_depth_32747 megasas_change_queue_depth 2 32747 NULL
+stats_read_ul_32751 stats_read_ul 3 32751 NULL
+tty_compat_ioctl_32761 tty_compat_ioctl 3 32761 NULL
+sctp_tsnmap_grow_32784 sctp_tsnmap_grow 2 32784 NULL
+firmwareUpload_32794 firmwareUpload 3 32794 NULL
+rproc_name_read_32805 rproc_name_read 3 32805 NULL
+vga_rseq_32848 vga_rseq 0 32848 NULL
+new_tape_buffer_32866 new_tape_buffer 2 32866 NULL
+io_apic_setup_irq_pin_32868 io_apic_setup_irq_pin 1 32868 NULL
+ath6kl_usb_submit_ctrl_in_32880 ath6kl_usb_submit_ctrl_in 6 32880 NULL nohasharray
+cifs_writedata_alloc_32880 cifs_writedata_alloc 1 32880 &ath6kl_usb_submit_ctrl_in_32880
+ath6kl_usb_post_recv_transfers_32892 ath6kl_usb_post_recv_transfers 2 32892 NULL
+il_dbgfs_tx_stats_read_32913 il_dbgfs_tx_stats_read 3 32913 NULL
+zlib_inflate_workspacesize_32927 zlib_inflate_workspacesize 0 32927 NULL
+rmap_recycle_32938 rmap_recycle 3 32938 NULL
+irq_reserve_irqs_32946 irq_reserve_irqs 1-2 32946 NULL
+ext4_valid_block_bitmap_32958 ext4_valid_block_bitmap 3 32958 NULL
+arch_ptrace_32981 arch_ptrace 3 32981 NULL
+compat_filldir_32999 compat_filldir 3 32999 NULL
+ext3_alloc_blocks_33007 ext3_alloc_blocks 3 33007 NULL
+pipeline_dec_packet_in_fifo_full_read_33052 pipeline_dec_packet_in_fifo_full_read 3 33052 NULL
+ebt_compat_match_offset_33053 ebt_compat_match_offset 0-2 33053 NULL
+bitmap_resize_33054 bitmap_resize 2 33054 NULL
+stats_dot11RTSSuccessCount_read_33065 stats_dot11RTSSuccessCount_read 3 33065 NULL
+sel_read_checkreqprot_33068 sel_read_checkreqprot 3 33068 NULL
+alloc_tio_33077 alloc_tio 3 33077 NULL
+acl_permission_check_33083 acl_permission_check 0 33083 NULL
+ieee80211_fragment_33112 ieee80211_fragment 4 33112 NULL
+write_node_33121 write_node 4 33121 NULL
+calc_patch_size_33124 calc_patch_size 0 33124 NULL
+fb_sys_write_33130 fb_sys_write 3 33130 NULL
+__len_within_target_33132 __len_within_target 0 33132 NULL
+debug_debug6_read_33168 debug_debug6_read 3 33168 NULL
+dataflash_read_fact_otp_33204 dataflash_read_fact_otp 2-3 33204 NULL
+pp_read_33210 pp_read 3 33210 NULL
+xfs_file_aio_write_33234 xfs_file_aio_write 4 33234 NULL
+build_completion_wait_33242 build_completion_wait 2 33242 NULL
+snd_pcm_plug_client_size_33267 snd_pcm_plug_client_size 0-2 33267 NULL
+sched_find_first_bit_33270 sched_find_first_bit 0 33270 NULL
+cachefiles_cook_key_33274 cachefiles_cook_key 2 33274 NULL
+mei_compat_ioctl_33275 mei_compat_ioctl 3 33275 NULL
+mcs7830_get_reg_33308 mcs7830_get_reg 3 33308 NULL
+ath6kl_usb_ctrl_msg_exchange_33327 ath6kl_usb_ctrl_msg_exchange 4 33327 NULL
+gsm_mux_rx_netchar_33336 gsm_mux_rx_netchar 3 33336 NULL
+joydev_ioctl_33343 joydev_ioctl 2 33343 NULL
+create_xattr_datum_33356 create_xattr_datum 5 33356 NULL nohasharray
+irq_pkt_threshold_read_33356 irq_pkt_threshold_read 3 33356 &create_xattr_datum_33356
+read_file_regidx_33370 read_file_regidx 3 33370 NULL
+ocfs2_quota_read_33382 ocfs2_quota_read 5 33382 NULL
+ieee80211_if_read_dropped_frames_no_route_33383 ieee80211_if_read_dropped_frames_no_route 3 33383 NULL
+scsi_varlen_cdb_length_33385 scsi_varlen_cdb_length 0 33385 NULL
+ocfs2_allocate_unwritten_extents_33394 ocfs2_allocate_unwritten_extents 2-3 33394 NULL
+ext4_meta_bg_first_block_no_33408 ext4_meta_bg_first_block_no 2 33408 NULL nohasharray
+snd_pcm_capture_ioctl1_33408 snd_pcm_capture_ioctl1 0 33408 &ext4_meta_bg_first_block_no_33408
+ufs_getfrag_block_33409 ufs_getfrag_block 2 33409 NULL
+ubh_scanc_33436 ubh_scanc 0-4-3 33436 NULL
+ovs_vport_alloc_33475 ovs_vport_alloc 1 33475 NULL
+create_entry_33479 create_entry 2 33479 NULL
+ip_setsockopt_33487 ip_setsockopt 5 33487 NULL nohasharray
+elf_map_33487 elf_map 0-2 33487 &ip_setsockopt_33487
+netxen_nic_hw_write_wx_128M_33488 netxen_nic_hw_write_wx_128M 2 33488 NULL
+ol_dqblk_chunk_off_33489 ol_dqblk_chunk_off 2 33489 NULL
+res_counter_read_33499 res_counter_read 4 33499 NULL
+fb_read_33506 fb_read 3 33506 NULL
+musb_test_mode_write_33518 musb_test_mode_write 3 33518 NULL
+ahash_setkey_unaligned_33521 ahash_setkey_unaligned 3 33521 NULL
+nes_alloc_fast_reg_page_list_33523 nes_alloc_fast_reg_page_list 2 33523 NULL
+aggr_size_rx_size_read_33526 aggr_size_rx_size_read 3 33526 NULL
+acpi_gsi_to_irq_33533 acpi_gsi_to_irq 1 33533 NULL
+tomoyo_read_self_33539 tomoyo_read_self 3 33539 NULL
+dup_array_33551 dup_array 3 33551 NULL
+solo_enc_read_33553 solo_enc_read 3 33553 NULL
+count_subheaders_33591 count_subheaders 0 33591 NULL
+scsi_execute_33596 scsi_execute 5 33596 NULL
+comedi_buf_write_n_allocated_33604 comedi_buf_write_n_allocated 0 33604 NULL
+xt_compat_target_offset_33608 xt_compat_target_offset 0 33608 NULL nohasharray
+ip6_find_1stfragopt_33608 ip6_find_1stfragopt 0 33608 &xt_compat_target_offset_33608
+usb_gstrings_attach_33615 usb_gstrings_attach 3 33615 NULL nohasharray
+il_dbgfs_qos_read_33615 il_dbgfs_qos_read 3 33615 &usb_gstrings_attach_33615
+irq_blk_threshold_read_33666 irq_blk_threshold_read 3 33666 NULL
+inw_p_33668 inw_p 0 33668 NULL
+arp_hdr_len_33671 arp_hdr_len 0 33671 NULL
+i2c_hid_alloc_buffers_33673 i2c_hid_alloc_buffers 2 33673 NULL
+ath6kl_wmi_startscan_cmd_33674 ath6kl_wmi_startscan_cmd 8 33674 NULL
+nv50_disp_dmac_create__33696 nv50_disp_dmac_create_ 6 33696 NULL
+compat_insnlist_33706 compat_insnlist 2 33706 NULL
+sys_keyctl_33708 sys_keyctl 4 33708 NULL nohasharray
+netlink_sendmsg_33708 netlink_sendmsg 4 33708 &sys_keyctl_33708
+tipc_link_stats_33716 tipc_link_stats 3 33716 NULL
+pvr2_stream_buffer_count_33719 pvr2_stream_buffer_count 2 33719 NULL
+ocfs2_extent_map_get_blocks_33720 ocfs2_extent_map_get_blocks 2 33720 NULL
+__mutex_lock_interruptible_slowpath_33735 __mutex_lock_interruptible_slowpath 0 33735 NULL
+Read_hfc_33755 Read_hfc 0 33755 NULL
+vifs_state_read_33762 vifs_state_read 3 33762 NULL
+hashtab_create_33769 hashtab_create 3 33769 NULL
+midibuf_message_length_33770 midibuf_message_length 0 33770 NULL
+if_sdio_read_rx_len_33800 if_sdio_read_rx_len 0 33800 NULL
+find_next_offset_33804 find_next_offset 3 33804 NULL
+sky2_rx_pad_33819 sky2_rx_pad 0 33819 NULL
+sep_create_msgarea_context_33829 sep_create_msgarea_context 4 33829 NULL
+scrub_setup_recheck_block_33831 scrub_setup_recheck_block 5-4 33831 NULL
+udplite_manip_pkt_33832 udplite_manip_pkt 4 33832 NULL
+usb_dump_endpoint_descriptor_33849 usb_dump_endpoint_descriptor 0 33849 NULL
+calgary_alloc_coherent_33851 calgary_alloc_coherent 2 33851 NULL
+oz_cdev_write_33852 oz_cdev_write 3 33852 NULL
+cap_mmap_addr_33853 cap_mmap_addr 0 33853 NULL
+get_user_pages_33908 get_user_pages 0-3-4 33908 NULL
+queue_logical_block_size_33918 queue_logical_block_size 0 33918 NULL
+sel_read_avc_cache_threshold_33942 sel_read_avc_cache_threshold 3 33942 NULL
+lpfc_idiag_ctlacc_read_33943 lpfc_idiag_ctlacc_read 3 33943 NULL
+read_file_tgt_rx_stats_33944 read_file_tgt_rx_stats 3 33944 NULL
+vga_switcheroo_debugfs_write_33984 vga_switcheroo_debugfs_write 3 33984 NULL
+__ntfs_malloc_34022 __ntfs_malloc 1 34022 NULL
+ppp_write_34034 ppp_write 3 34034 NULL
+tty_insert_flip_string_34042 tty_insert_flip_string 3 34042 NULL
+__domain_flush_pages_34045 __domain_flush_pages 2-3 34045 NULL
+acpi_dev_get_irqresource_34064 acpi_dev_get_irqresource 2 34064 NULL
+memcg_update_all_caches_34068 memcg_update_all_caches 1 34068 NULL
+read_file_ant_diversity_34071 read_file_ant_diversity 3 34071 NULL
+compat_hdio_ioctl_34088 compat_hdio_ioctl 4 34088 NULL
+pipeline_pipeline_fifo_full_read_34095 pipeline_pipeline_fifo_full_read 3 34095 NULL
+is_discarded_oblock_34120 is_discarded_oblock 2 34120 NULL
+islpci_mgt_transmit_34133 islpci_mgt_transmit 5 34133 NULL
+ttm_dma_page_pool_free_34135 ttm_dma_page_pool_free 2 34135 NULL
+cdc_mbim_process_dgram_34136 cdc_mbim_process_dgram 3 34136 NULL
+ixgbe_dbg_netdev_ops_write_34141 ixgbe_dbg_netdev_ops_write 3 34141 NULL
+shmem_pread_fast_34147 shmem_pread_fast 3 34147 NULL
+skb_to_sgvec_34171 skb_to_sgvec 0 34171 NULL
+ext4_da_write_begin_34215 ext4_da_write_begin 3-4 34215 NULL
+bl_pipe_downcall_34264 bl_pipe_downcall 3 34264 NULL
+pcf857x_to_irq_34273 pcf857x_to_irq 2 34273 NULL
+zone_spanned_pages_in_node_34299 zone_spanned_pages_in_node 0 34299 NULL
+iov_iter_single_seg_count_34326 iov_iter_single_seg_count 0 34326 NULL nohasharray
+pcpu_need_to_extend_34326 pcpu_need_to_extend 0 34326 &iov_iter_single_seg_count_34326
+__insert_34349 __insert 2-3 34349 NULL
+crypto_ablkcipher_ivsize_34363 crypto_ablkcipher_ivsize 0 34363 NULL
+rngapi_reset_34366 rngapi_reset 3 34366 NULL nohasharray
+p54_alloc_skb_34366 p54_alloc_skb 3 34366 &rngapi_reset_34366
+reiserfs_resize_34377 reiserfs_resize 2 34377 NULL
+ea_read_34378 ea_read 0 34378 NULL
+av7110_vbi_write_34384 av7110_vbi_write 3 34384 NULL
+usbvision_v4l2_read_34386 usbvision_v4l2_read 3 34386 NULL
+read_rbu_image_type_34387 read_rbu_image_type 6 34387 NULL
+iwl_calib_set_34400 iwl_calib_set 3 34400 NULL nohasharray
+ivtv_read_pos_34400 ivtv_read_pos 3 34400 &iwl_calib_set_34400
+nl80211_send_disassoc_34424 nl80211_send_disassoc 4 34424 NULL
+usbtest_alloc_urb_34446 usbtest_alloc_urb 3-5 34446 NULL
+mwifiex_regrdwr_read_34472 mwifiex_regrdwr_read 3 34472 NULL
+skcipher_sndbuf_34476 skcipher_sndbuf 0 34476 NULL
+i2o_parm_field_get_34477 i2o_parm_field_get 5 34477 NULL
+security_inode_permission_34488 security_inode_permission 0 34488 NULL
+tracing_stats_read_34537 tracing_stats_read 3 34537 NULL
+hugetlbfs_read_actor_34547 hugetlbfs_read_actor 0-2-5-4 34547 NULL
+dbBackSplit_34561 dbBackSplit 0 34561 NULL
+alloc_ieee80211_rsl_34564 alloc_ieee80211_rsl 1 34564 NULL
+velocity_rx_copy_34583 velocity_rx_copy 2 34583 NULL
+init_send_hfcd_34586 init_send_hfcd 1 34586 NULL
+inet6_ifla6_size_34591 inet6_ifla6_size 0 34591 NULL
+ceph_msgpool_init_34599 ceph_msgpool_init 4 34599 NULL
+brcmf_cfg80211_mgmt_tx_34608 brcmf_cfg80211_mgmt_tx 7 34608 NULL
+__jffs2_ref_totlen_34609 __jffs2_ref_totlen 0 34609 NULL
+__cfg80211_disconnected_34622 __cfg80211_disconnected 3 34622 NULL
+cnic_alloc_dma_34641 cnic_alloc_dma 3 34641 NULL
+tomoyo_dump_page_34649 tomoyo_dump_page 2 34649 NULL
+nf_nat_mangle_udp_packet_34661 nf_nat_mangle_udp_packet 8-6 34661 NULL
+isr_fiqs_read_34687 isr_fiqs_read 3 34687 NULL
+port_print_34704 port_print 3 34704 NULL
+alloc_irq_and_cfg_at_34706 alloc_irq_and_cfg_at 1 34706 NULL
+ieee80211_if_read_num_sta_ps_34722 ieee80211_if_read_num_sta_ps 3 34722 NULL
+platform_list_read_file_34734 platform_list_read_file 3 34734 NULL
+reg_w_ixbuf_34736 reg_w_ixbuf 4 34736 NULL
+qib_cdev_init_34778 qib_cdev_init 1 34778 NULL
+__copy_in_user_34790 __copy_in_user 3 34790 NULL
+drbd_get_max_capacity_34804 drbd_get_max_capacity 0 34804 NULL
+b43_debugfs_write_34838 b43_debugfs_write 3 34838 NULL
+nl_portid_hash_zalloc_34843 nl_portid_hash_zalloc 1 34843 NULL
+acpi_system_write_wakeup_device_34853 acpi_system_write_wakeup_device 3 34853 NULL
+usb_serial_generic_prepare_write_buffer_34857 usb_serial_generic_prepare_write_buffer 3 34857 NULL
+ieee80211_if_read_txpower_34871 ieee80211_if_read_txpower 3 34871 NULL
+msg_print_text_34889 msg_print_text 0 34889 NULL
+ieee80211_if_write_34894 ieee80211_if_write 3 34894 NULL
+compat_put_uint_34905 compat_put_uint 1 34905 NULL
+__inode_permission_34925 __inode_permission 0 34925 NULL nohasharray
+btrfs_super_chunk_root_34925 btrfs_super_chunk_root 0 34925 &__inode_permission_34925
+skb_gro_header_slow_34958 skb_gro_header_slow 2 34958 NULL
+Realloc_34961 Realloc 2 34961 NULL
+mq_lookup_34990 mq_lookup 2 34990 NULL
+rx_rx_hdr_overflow_read_35002 rx_rx_hdr_overflow_read 3 35002 NULL
+l2cap_skbuff_fromiovec_35003 l2cap_skbuff_fromiovec 4-3 35003 NULL
+dm_cache_insert_mapping_35005 dm_cache_insert_mapping 2-3 35005 NULL
+sisusb_copy_memory_35016 sisusb_copy_memory 4 35016 NULL
+alloc_p2m_page_35025 alloc_p2m_page 0 35025 NULL
+coda_psdev_read_35029 coda_psdev_read 3 35029 NULL
+btmrvl_gpiogap_write_35053 btmrvl_gpiogap_write 3 35053 NULL
+pwr_connection_out_of_sync_read_35061 pwr_connection_out_of_sync_read 3 35061 NULL
+store_ifalias_35088 store_ifalias 4 35088 NULL
+__kfifo_uint_must_check_helper_35097 __kfifo_uint_must_check_helper 0-1 35097 NULL
+capi_write_35104 capi_write 3 35104 NULL nohasharray
+tx_tx_done_template_read_35104 tx_tx_done_template_read 3 35104 &capi_write_35104
+ide_settings_proc_write_35110 ide_settings_proc_write 3 35110 NULL
+pointer_35138 pointer 0 35138 NULL
+gntdev_alloc_map_35145 gntdev_alloc_map 2 35145 NULL
+iscsi_conn_setup_35159 iscsi_conn_setup 2 35159 NULL
+ieee80211_if_read_bssid_35161 ieee80211_if_read_bssid 3 35161 NULL
+mlx4_ib_get_cq_umem_35184 mlx4_ib_get_cq_umem 5-6 35184 NULL
+iwl_nvm_read_chunk_35198 iwl_nvm_read_chunk 0 35198 NULL
+uprobe_get_swbp_addr_35201 uprobe_get_swbp_addr 0 35201 NULL
+unix_stream_recvmsg_35210 unix_stream_recvmsg 4 35210 NULL
+_osd_req_alist_elem_size_35216 _osd_req_alist_elem_size 0-2 35216 NULL
+striped_read_35218 striped_read 0-2-8-3 35218 NULL nohasharray
+security_key_getsecurity_35218 security_key_getsecurity 0 35218 &striped_read_35218
+rx_rx_cmplt_task_read_35226 rx_rx_cmplt_task_read 3 35226 NULL nohasharray
+video_register_device_no_warn_35226 video_register_device_no_warn 3 35226 &rx_rx_cmplt_task_read_35226
+gfn_to_page_many_atomic_35234 gfn_to_page_many_atomic 2 35234 NULL
+set_fd_set_35249 set_fd_set 1 35249 NULL
+ioapic_setup_resources_35255 ioapic_setup_resources 1 35255 NULL
+dma_show_regs_35266 dma_show_regs 3 35266 NULL
+irda_recvmsg_stream_35280 irda_recvmsg_stream 4 35280 NULL
+i2o_block_end_request_35282 i2o_block_end_request 3 35282 NULL
+isr_rx_rdys_read_35283 isr_rx_rdys_read 3 35283 NULL
+brcmf_sdio_forensic_read_35311 brcmf_sdio_forensic_read 3 35311 NULL nohasharray
+__btrfs_buffered_write_35311 __btrfs_buffered_write 3 35311 &brcmf_sdio_forensic_read_35311
+tracing_read_pipe_35312 tracing_read_pipe 3 35312 NULL
+sys_setsockopt_35320 sys_setsockopt 5 35320 NULL
+irq_domain_disassociate_many_35325 irq_domain_disassociate_many 2-3 35325 NULL
+fallback_on_nodma_alloc_35332 fallback_on_nodma_alloc 2 35332 NULL
+pskb_network_may_pull_35336 pskb_network_may_pull 2 35336 NULL
+ieee80211_if_fmt_ap_power_level_35347 ieee80211_if_fmt_ap_power_level 3 35347 NULL
+nouveau_devinit_create__35348 nouveau_devinit_create_ 4 35348 NULL
+hpi_alloc_control_cache_35351 hpi_alloc_control_cache 1 35351 NULL
+compat_filldir64_35354 compat_filldir64 3 35354 NULL
+rawv6_send_hdrinc_35425 rawv6_send_hdrinc 3 35425 NULL
+__set_test_and_free_35436 __set_test_and_free 2 35436 NULL
+buffer_to_user_35439 buffer_to_user 3 35439 NULL
+i915_wedged_read_35474 i915_wedged_read 3 35474 NULL
+ecryptfs_get_zeroed_pages_35483 ecryptfs_get_zeroed_pages 0 35483 NULL
+do_atm_ioctl_35519 do_atm_ioctl 3 35519 NULL
+async_setkey_35521 async_setkey 3 35521 NULL
+__filemap_fdatawrite_range_35528 __filemap_fdatawrite_range 0 35528 NULL
+iwl_dbgfs_bt_traffic_read_35534 iwl_dbgfs_bt_traffic_read 3 35534 NULL
+rxpipe_tx_xfr_host_int_trig_rx_data_read_35538 rxpipe_tx_xfr_host_int_trig_rx_data_read 3 35538 NULL
+ibnl_put_attr_35541 ibnl_put_attr 3 35541 NULL
+ieee80211_if_write_smps_35550 ieee80211_if_write_smps 3 35550 NULL
+ext2_acl_from_disk_35580 ext2_acl_from_disk 2 35580 NULL
+spk_msg_set_35586 spk_msg_set 3 35586 NULL
+ReadZReg_35604 ReadZReg 0 35604 NULL
+kernel_readv_35617 kernel_readv 3 35617 NULL
+ixgbe_pci_sriov_configure_35624 ixgbe_pci_sriov_configure 2 35624 NULL
+reiserfs_readpages_35629 reiserfs_readpages 4 35629 NULL
+spi_register_board_info_35651 spi_register_board_info 2 35651 NULL
+store_debug_level_35652 store_debug_level 3 35652 NULL
+rdmaltWithLock_35669 rdmaltWithLock 0 35669 NULL
+compat_sys_kexec_load_35674 compat_sys_kexec_load 2 35674 NULL
+dm_table_create_35687 dm_table_create 3 35687 NULL
+rds_page_copy_user_35691 rds_page_copy_user 4 35691 NULL
+pci_enable_sriov_35745 pci_enable_sriov 2 35745 NULL
+iwl_dbgfs_disable_ht40_read_35761 iwl_dbgfs_disable_ht40_read 3 35761 NULL
+udf_alloc_i_data_35786 udf_alloc_i_data 2 35786 NULL
+pvr2_hdw_cpufw_get_35824 pvr2_hdw_cpufw_get 0-4-2 35824 NULL
+tx_tx_cmplt_read_35854 tx_tx_cmplt_read 3 35854 NULL
+mthca_buf_alloc_35861 mthca_buf_alloc 2 35861 NULL
+fls64_35862 fls64 0 35862 NULL
+kvm_dirty_bitmap_bytes_35886 kvm_dirty_bitmap_bytes 0 35886 NULL
+ieee80211_if_fmt_dot11MeshRetryTimeout_35890 ieee80211_if_fmt_dot11MeshRetryTimeout 3 35890 NULL
+uwb_rc_cmd_done_35892 uwb_rc_cmd_done 4 35892 NULL
+kernel_setsockopt_35913 kernel_setsockopt 5 35913 NULL
+rbio_nr_pages_35916 rbio_nr_pages 0-1-2 35916 NULL
+vol_cdev_compat_ioctl_35923 vol_cdev_compat_ioctl 3 35923 NULL
+sctp_tsnmap_mark_35929 sctp_tsnmap_mark 2 35929 NULL
+rx_defrag_init_called_read_35935 rx_defrag_init_called_read 3 35935 NULL
+put_cmsg_compat_35937 put_cmsg_compat 4 35937 NULL
+ext_rts51x_sd_execute_write_data_35971 ext_rts51x_sd_execute_write_data 9 35971 NULL
+ceph_buffer_new_35974 ceph_buffer_new 1 35974 NULL
+acl_alloc_35979 acl_alloc 1 35979 NULL
+generic_file_aio_read_35987 generic_file_aio_read 0 35987 NULL
+koneplus_sysfs_write_35993 koneplus_sysfs_write 6 35993 NULL
+il3945_ucode_tx_stats_read_36016 il3945_ucode_tx_stats_read 3 36016 NULL
+ubi_eba_write_leb_36029 ubi_eba_write_leb 5-6 36029 NULL
+account_shadowed_36048 account_shadowed 2 36048 NULL
+gpio_power_read_36059 gpio_power_read 3 36059 NULL
+write_emulate_36065 write_emulate 2-4 36065 NULL
+radeon_vm_num_pdes_36070 radeon_vm_num_pdes 0 36070 NULL
+ieee80211_if_fmt_peer_36071 ieee80211_if_fmt_peer 3 36071 NULL
+ext3_new_blocks_36073 ext3_new_blocks 3 36073 NULL
+ieee80211_if_write_tsf_36077 ieee80211_if_write_tsf 3 36077 NULL
+snd_pcm_plug_read_transfer_36080 snd_pcm_plug_read_transfer 0-3 36080 NULL
+vga_arb_write_36112 vga_arb_write 3 36112 NULL
+simple_xattr_alloc_36118 simple_xattr_alloc 2 36118 NULL
+compat_ptrace_request_36131 compat_ptrace_request 3-4 36131 NULL
+vmalloc_exec_36132 vmalloc_exec 1 36132 NULL
+max8925_irq_domain_map_36133 max8925_irq_domain_map 2 36133 NULL
+ext3_readpages_36144 ext3_readpages 4 36144 NULL
+alloc_vm_area_36149 alloc_vm_area 1 36149 NULL
+twl_set_36154 twl_set 2 36154 NULL
+b1_alloc_card_36155 b1_alloc_card 1 36155 NULL
+btrfs_file_extent_inline_len_36158 btrfs_file_extent_inline_len 0 36158 NULL
+snd_korg1212_copy_from_36169 snd_korg1212_copy_from 6 36169 NULL
+ubifs_read_nnode_36221 ubifs_read_nnode 0 36221 NULL
+is_dirty_36223 is_dirty 2 36223 NULL
+dma_alloc_attrs_36225 dma_alloc_attrs 0 36225 NULL
+nfqnl_mangle_36226 nfqnl_mangle 4-2 36226 NULL
+atomic_stats_read_36228 atomic_stats_read 3 36228 NULL
+viafb_iga1_odev_proc_write_36241 viafb_iga1_odev_proc_write 3 36241 NULL
+rproc_recovery_read_36245 rproc_recovery_read 3 36245 NULL
+scrub_stripe_36248 scrub_stripe 5-4 36248 NULL
+compat_sys_mbind_36256 compat_sys_mbind 5 36256 NULL
+usb_buffer_alloc_36276 usb_buffer_alloc 2 36276 NULL
+codec_reg_read_file_36280 codec_reg_read_file 3 36280 NULL
+crypto_shash_digestsize_36284 crypto_shash_digestsize 0 36284 NULL
+nouveau_cli_create_36293 nouveau_cli_create 3 36293 NULL
+lpfc_debugfs_dif_err_read_36303 lpfc_debugfs_dif_err_read 3 36303 NULL
+ad7879_spi_xfer_36311 ad7879_spi_xfer 3 36311 NULL
+fuse_get_user_addr_36312 fuse_get_user_addr 0 36312 NULL
+fat_compat_ioctl_filldir_36328 fat_compat_ioctl_filldir 3 36328 NULL
+lc_create_36332 lc_create 4 36332 NULL
+jbd2_journal_init_revoke_table_36336 jbd2_journal_init_revoke_table 1 36336 NULL
+v9fs_file_readn_36353 v9fs_file_readn 4 36353 NULL nohasharray
+xz_dec_lzma2_create_36353 xz_dec_lzma2_create 2 36353 &v9fs_file_readn_36353
+to_sector_36361 to_sector 0-1 36361 NULL
+tunables_read_36385 tunables_read 3 36385 NULL
+afs_alloc_flat_call_36399 afs_alloc_flat_call 2-3 36399 NULL
+sctp_tsnmap_init_36446 sctp_tsnmap_init 2 36446 NULL
+alloc_etherdev_mqs_36450 alloc_etherdev_mqs 1 36450 NULL
+b43_nphy_load_samples_36481 b43_nphy_load_samples 3 36481 NULL
+tx_tx_checksum_result_read_36490 tx_tx_checksum_result_read 3 36490 NULL
+__hwahc_op_set_ptk_36510 __hwahc_op_set_ptk 5 36510 NULL
+mcam_v4l_read_36513 mcam_v4l_read 3 36513 NULL
+get_param_l_36518 get_param_l 0 36518 NULL
+ieee80211_if_read_fwded_frames_36520 ieee80211_if_read_fwded_frames 3 36520 NULL
+lguest_setup_irq_36531 lguest_setup_irq 1 36531 NULL
+crypto_aead_authsize_36537 crypto_aead_authsize 0 36537 NULL
+cpu_type_read_36540 cpu_type_read 3 36540 NULL
+get_entry_len_36549 get_entry_len 0 36549 NULL
+__kfifo_to_user_36555 __kfifo_to_user 3 36555 NULL nohasharray
+macvtap_do_read_36555 macvtap_do_read 4 36555 &__kfifo_to_user_36555
+btrfs_get_token_64_36572 btrfs_get_token_64 0 36572 NULL
+ssb_bus_scan_36578 ssb_bus_scan 2 36578 NULL
+__erst_read_36579 __erst_read 0 36579 NULL
+put_cmsg_36589 put_cmsg 4 36589 NULL
+pcnet32_realloc_rx_ring_36598 pcnet32_realloc_rx_ring 3 36598 NULL
+fat_ioctl_filldir_36621 fat_ioctl_filldir 3 36621 NULL
+vxge_config_vpaths_36636 vxge_config_vpaths 0 36636 NULL
+format_decode_36638 format_decode 0 36638 NULL
+ced_ioctl_36647 ced_ioctl 2 36647 NULL
+lpfc_idiag_extacc_alloc_get_36648 lpfc_idiag_extacc_alloc_get 0-3 36648 NULL
+osd_req_list_collection_objects_36664 osd_req_list_collection_objects 5 36664 NULL
+iscsi_host_alloc_36671 iscsi_host_alloc 2 36671 NULL
+ptr_to_compat_36680 ptr_to_compat 0 36680 NULL
+ext4_mb_discard_group_preallocations_36685 ext4_mb_discard_group_preallocations 2 36685 NULL
+extract_icmp6_fields_36732 extract_icmp6_fields 2 36732 NULL
+snd_rawmidi_kernel_read1_36740 snd_rawmidi_kernel_read1 4 36740 NULL
+cxgbi_device_register_36746 cxgbi_device_register 1-2 36746 NULL
+ps_poll_upsd_timeouts_read_36755 ps_poll_upsd_timeouts_read 3 36755 NULL
+ip4ip6_err_36772 ip4ip6_err 5 36772 NULL
+ptp_filter_init_36780 ptp_filter_init 2 36780 NULL
+proc_fault_inject_read_36802 proc_fault_inject_read 3 36802 NULL
+hiddev_ioctl_36816 hiddev_ioctl 2 36816 NULL
+int_hardware_entry_36833 int_hardware_entry 3 36833 NULL
+fc_change_queue_depth_36841 fc_change_queue_depth 2 36841 NULL
+keyctl_describe_key_36853 keyctl_describe_key 3 36853 NULL
+cm_write_36858 cm_write 3 36858 NULL
+tx_tx_data_programmed_read_36871 tx_tx_data_programmed_read 3 36871 NULL
+svc_setsockopt_36876 svc_setsockopt 5 36876 NULL
+raid56_parity_write_36877 raid56_parity_write 5 36877 NULL
+__btrfs_map_block_36883 __btrfs_map_block 3 36883 NULL
+ib_ucm_alloc_data_36885 ib_ucm_alloc_data 3 36885 NULL
+selinux_inode_notifysecctx_36896 selinux_inode_notifysecctx 3 36896 NULL
+OS_kmalloc_36909 OS_kmalloc 1 36909 NULL
+build_key_36931 build_key 1 36931 NULL
+crypto_blkcipher_ivsize_36944 crypto_blkcipher_ivsize 0 36944 NULL
+write_leb_36957 write_leb 5 36957 NULL
+ntfs_external_attr_find_36963 ntfs_external_attr_find 0 36963 NULL
+sparse_early_mem_maps_alloc_node_36971 sparse_early_mem_maps_alloc_node 4 36971 NULL
+drbd_new_dev_size_36998 drbd_new_dev_size 0-3 36998 NULL
+auok190xfb_write_37001 auok190xfb_write 3 37001 NULL
+setxattr_37006 setxattr 4 37006 NULL
+qp_broker_create_37053 qp_broker_create 6-5 37053 NULL nohasharray
+ieee80211_if_read_drop_unencrypted_37053 ieee80211_if_read_drop_unencrypted 3 37053 &qp_broker_create_37053
+parse_command_37079 parse_command 2 37079 NULL
+pipeline_cs_rx_packet_in_read_37089 pipeline_cs_rx_packet_in_read 3 37089 NULL
+tun_get_user_37094 tun_get_user 5 37094 NULL
+has_wrprotected_page_37123 has_wrprotected_page 2-3 37123 NULL
+snd_hda_get_conn_list_37132 snd_hda_get_conn_list 0 37132 NULL
+msg_word_37164 msg_word 0 37164 NULL
+can_set_xattr_37182 can_set_xattr 4 37182 NULL
+crypto_shash_descsize_37212 crypto_shash_descsize 0 37212 NULL
+regmap_access_read_file_37223 regmap_access_read_file 3 37223 NULL
+__do_replace_37227 __do_replace 5 37227 NULL
+rx_filter_dup_filter_read_37238 rx_filter_dup_filter_read 3 37238 NULL
+prot_queue_del_37258 prot_queue_del 0 37258 NULL
+ath6kl_wmi_set_ie_cmd_37260 ath6kl_wmi_set_ie_cmd 6 37260 NULL
+exofs_max_io_pages_37263 exofs_max_io_pages 0-2 37263 NULL
+nested_svm_map_37268 nested_svm_map 2 37268 NULL
+c101_run_37279 c101_run 2 37279 NULL
+srp_target_alloc_37288 srp_target_alloc 3 37288 NULL
+ieee80211_if_read_power_mode_37305 ieee80211_if_read_power_mode 3 37305 NULL
+jffs2_write_dirent_37311 jffs2_write_dirent 5 37311 NULL
+send_msg_37323 send_msg 4 37323 NULL
+brcmf_sdbrcm_membytes_37324 brcmf_sdbrcm_membytes 3-5 37324 NULL
+l2cap_create_connless_pdu_37327 l2cap_create_connless_pdu 3 37327 NULL
+scsi_mode_select_37330 scsi_mode_select 6 37330 NULL
+rxrpc_server_sendmsg_37331 rxrpc_server_sendmsg 4 37331 NULL
+security_inode_getsecurity_37354 security_inode_getsecurity 0 37354 NULL
+iommu_num_pages_37391 iommu_num_pages 0-1-3-2 37391 NULL
+sys_getxattr_37418 sys_getxattr 4 37418 NULL
+hci_sock_sendmsg_37420 hci_sock_sendmsg 4 37420 NULL
+acpi_os_allocate_zeroed_37422 acpi_os_allocate_zeroed 1 37422 NULL nohasharray
+find_next_bit_37422 find_next_bit 0-2-3 37422 &acpi_os_allocate_zeroed_37422
+tty_insert_flip_string_fixed_flag_37428 tty_insert_flip_string_fixed_flag 4 37428 NULL
+iwl_print_last_event_logs_37433 iwl_print_last_event_logs 0-7-9 37433 NULL
+tcp_established_options_37450 tcp_established_options 0 37450 NULL
+brcmf_sdio_dump_console_37455 brcmf_sdio_dump_console 4 37455 NULL
+__remove_37457 __remove 2 37457 NULL
+ufs_data_ptr_to_cpu_37475 ufs_data_ptr_to_cpu 0 37475 NULL
+get_est_timing_37484 get_est_timing 0 37484 NULL
+kmem_realloc_37489 kmem_realloc 2 37489 NULL
+kvm_vcpu_compat_ioctl_37500 kvm_vcpu_compat_ioctl 3 37500 NULL
+vmalloc_32_user_37519 vmalloc_32_user 1 37519 NULL
+fault_inject_read_37534 fault_inject_read 3 37534 NULL
+hdr_size_37536 hdr_size 0 37536 NULL
+a2p_37544 a2p 0-1 37544 NULL
+sep_create_dcb_dmatables_context_37551 sep_create_dcb_dmatables_context 6 37551 NULL nohasharray
+nf_nat_mangle_tcp_packet_37551 nf_nat_mangle_tcp_packet 6-8 37551 &sep_create_dcb_dmatables_context_37551
+xhci_alloc_streams_37586 xhci_alloc_streams 5 37586 NULL
+mlx4_get_mgm_entry_size_37607 mlx4_get_mgm_entry_size 0 37607 NULL
+kvm_read_guest_page_mmu_37611 kvm_read_guest_page_mmu 6-3 37611 NULL
+policy_residency_37629 policy_residency 0 37629 NULL
+check_pt_base_37635 check_pt_base 3 37635 NULL
+alloc_fd_37637 alloc_fd 1 37637 NULL
+bio_copy_user_iov_37660 bio_copy_user_iov 4 37660 NULL
+rfcomm_sock_sendmsg_37661 rfcomm_sock_sendmsg 4 37661 NULL nohasharray
+vmw_framebuffer_dmabuf_dirty_37661 vmw_framebuffer_dmabuf_dirty 6 37661 &rfcomm_sock_sendmsg_37661
+lnw_gpio_to_irq_37665 lnw_gpio_to_irq 2 37665 NULL
+ieee80211_if_read_rc_rateidx_mcs_mask_2ghz_37675 ieee80211_if_read_rc_rateidx_mcs_mask_2ghz 3 37675 NULL
+regmap_map_read_file_37685 regmap_map_read_file 3 37685 NULL
+nametbl_header_37698 nametbl_header 2 37698 NULL
+__le32_to_cpup_37702 __le32_to_cpup 0 37702 NULL
+dm_thin_remove_block_37724 dm_thin_remove_block 2 37724 NULL
+find_active_uprobe_37733 find_active_uprobe 1 37733 NULL
+read_enabled_file_bool_37744 read_enabled_file_bool 3 37744 NULL
+ocfs2_duplicate_clusters_by_jbd_37749 ocfs2_duplicate_clusters_by_jbd 6-4-5 37749 NULL
+ocfs2_control_cfu_37750 ocfs2_control_cfu 2 37750 NULL
+ipath_cdev_init_37752 ipath_cdev_init 1 37752 NULL
+dccp_setsockopt_cscov_37766 dccp_setsockopt_cscov 2 37766 NULL
+dma_pte_addr_37784 dma_pte_addr 0 37784 NULL
+il4965_rs_sta_dbgfs_rate_scale_data_read_37792 il4965_rs_sta_dbgfs_rate_scale_data_read 3 37792 NULL
+smk_read_logging_37804 smk_read_logging 3 37804 NULL
+deny_write_access_37813 deny_write_access 0 37813 NULL
+rx_decrypt_key_not_found_read_37820 rx_decrypt_key_not_found_read 3 37820 NULL
+bitmap_find_next_zero_area_37827 bitmap_find_next_zero_area 2-3-5-4 37827 NULL
+o2hb_debug_read_37851 o2hb_debug_read 3 37851 NULL
+xfs_dir2_block_to_sf_37868 xfs_dir2_block_to_sf 3 37868 NULL
+sys_setxattr_37880 sys_setxattr 4 37880 NULL
+dvb_net_sec_37884 dvb_net_sec 3 37884 NULL
+max77686_irq_domain_map_37897 max77686_irq_domain_map 2 37897 NULL
+compat_sys_rt_sigpending_37899 compat_sys_rt_sigpending 2 37899 NULL
+tipc_link_send_sections_fast_37920 tipc_link_send_sections_fast 4 37920 NULL
+pkt_alloc_packet_data_37928 pkt_alloc_packet_data 1 37928 NULL
+read_rbu_packet_size_37939 read_rbu_packet_size 6 37939 NULL
+fifo_alloc_37961 fifo_alloc 1 37961 NULL
+ext3_free_blocks_sb_37967 ext3_free_blocks_sb 3-4 37967 NULL
+rds_rdma_extra_size_37990 rds_rdma_extra_size 0 37990 NULL
+persistent_ram_old_size_37997 persistent_ram_old_size 0 37997 NULL
+vfs_readv_38011 vfs_readv 3 38011 NULL
+aggr_recv_addba_req_evt_38037 aggr_recv_addba_req_evt 4 38037 NULL
+klsi_105_prepare_write_buffer_38044 klsi_105_prepare_write_buffer 3 38044 NULL nohasharray
+il_dbgfs_chain_noise_read_38044 il_dbgfs_chain_noise_read 3 38044 &klsi_105_prepare_write_buffer_38044
+_xfs_buf_alloc_38058 _xfs_buf_alloc 3 38058 NULL nohasharray
+is_discarded_38058 is_discarded 2 38058 &_xfs_buf_alloc_38058
+nsm_create_handle_38060 nsm_create_handle 4 38060 NULL
+alloc_ltalkdev_38071 alloc_ltalkdev 1 38071 NULL
+xfs_buf_readahead_map_38081 xfs_buf_readahead_map 3 38081 NULL
+uwb_mac_addr_print_38085 uwb_mac_addr_print 2 38085 NULL
+request_key_auth_new_38092 request_key_auth_new 3 38092 NULL
+proc_self_readlink_38094 proc_self_readlink 3 38094 NULL
+ep0_read_38095 ep0_read 3 38095 NULL
+sk_wmem_schedule_38096 sk_wmem_schedule 2 38096 NULL
+rbd_obj_read_sync_38098 rbd_obj_read_sync 3-4 38098 NULL
+snd_pcm_oss_write_38108 snd_pcm_oss_write 3 38108 NULL
+vmw_kms_present_38130 vmw_kms_present 9 38130 NULL
+__ntfs_copy_from_user_iovec_inatomic_38153 __ntfs_copy_from_user_iovec_inatomic 3-4 38153 NULL
+kvm_clear_guest_38164 kvm_clear_guest 3-2 38164 NULL
+cdev_add_38176 cdev_add 2-3 38176 NULL
+brcmf_sdcard_recv_buf_38179 brcmf_sdcard_recv_buf 6 38179 NULL
+rt2x00debug_write_rf_38195 rt2x00debug_write_rf 3 38195 NULL
+get_ucode_user_38202 get_ucode_user 3 38202 NULL
+ext3_new_block_38208 ext3_new_block 3 38208 NULL
+stmpe_gpio_irq_map_38222 stmpe_gpio_irq_map 3 38222 NULL
+osd_req_list_partition_collections_38223 osd_req_list_partition_collections 5 38223 NULL
+palmas_gpio_to_irq_38235 palmas_gpio_to_irq 2 38235 NULL
+vhost_net_compat_ioctl_38237 vhost_net_compat_ioctl 3 38237 NULL
+_ipw_read_reg32_38245 _ipw_read_reg32 0 38245 NULL
+from_dblock_38256 from_dblock 0-1 38256 NULL
+vmci_qp_broker_set_page_store_38260 vmci_qp_broker_set_page_store 2-3 38260 NULL
+ieee80211_if_read_auto_open_plinks_38268 ieee80211_if_read_auto_open_plinks 3 38268 NULL nohasharray
+mthca_alloc_icm_table_38268 mthca_alloc_icm_table 4-3 38268 &ieee80211_if_read_auto_open_plinks_38268
+xfs_bmbt_to_bmdr_38275 xfs_bmbt_to_bmdr 3 38275 NULL nohasharray
+xfs_bmdr_to_bmbt_38275 xfs_bmdr_to_bmbt 5 38275 &xfs_bmbt_to_bmdr_38275
+ftdi_process_packet_38281 ftdi_process_packet 4 38281 NULL nohasharray
+swiotlb_sync_single_for_cpu_38281 swiotlb_sync_single_for_cpu 2 38281 &ftdi_process_packet_38281
+gpa_to_gfn_38291 gpa_to_gfn 0-1 38291 NULL
+zd_mac_rx_38296 zd_mac_rx 3 38296 NULL
+isr_rx_headers_read_38325 isr_rx_headers_read 3 38325 NULL
+ida_simple_get_38326 ida_simple_get 2 38326 NULL
+__snd_gf1_look8_38333 __snd_gf1_look8 0 38333 NULL
+pyra_sysfs_write_38370 pyra_sysfs_write 6 38370 NULL
+dn_sendmsg_38390 dn_sendmsg 4 38390 NULL
+get_valid_node_allowed_38412 get_valid_node_allowed 1-0 38412 NULL
+ocfs2_which_cluster_group_38413 ocfs2_which_cluster_group 2 38413 NULL
+ht_destroy_irq_38418 ht_destroy_irq 1 38418 NULL
+ieee80211_if_read_dtim_count_38419 ieee80211_if_read_dtim_count 3 38419 NULL
+asix_write_cmd_async_38420 asix_write_cmd_async 5 38420 NULL
+pcnet32_realloc_tx_ring_38428 pcnet32_realloc_tx_ring 3 38428 NULL
+pmcraid_copy_sglist_38431 pmcraid_copy_sglist 3 38431 NULL
+kvm_write_guest_38454 kvm_write_guest 4-2 38454 NULL
+i915_min_freq_read_38470 i915_min_freq_read 3 38470 NULL
+kvm_arch_setup_async_pf_38481 kvm_arch_setup_async_pf 3 38481 NULL
+blk_end_bidi_request_38482 blk_end_bidi_request 3-4 38482 NULL
+dev_names_read_38509 dev_names_read 3 38509 NULL
+iscsi_create_iface_38510 iscsi_create_iface 5 38510 NULL
+event_rx_mismatch_read_38518 event_rx_mismatch_read 3 38518 NULL
+set_queue_count_38519 set_queue_count 0 38519 NULL
+mlx4_ib_db_map_user_38529 mlx4_ib_db_map_user 2 38529 NULL
+ubifs_idx_node_sz_38546 ubifs_idx_node_sz 0-2 38546 NULL
+btrfs_discard_extent_38547 btrfs_discard_extent 2 38547 NULL
+irda_sendmsg_dgram_38563 irda_sendmsg_dgram 4 38563 NULL
+il4965_rs_sta_dbgfs_scale_table_read_38564 il4965_rs_sta_dbgfs_scale_table_read 3 38564 NULL
+_ipw_read32_38565 _ipw_read32 0 38565 NULL
+snd_nm256_playback_copy_38567 snd_nm256_playback_copy 5-3 38567 NULL
+copy_ctl_value_to_user_38587 copy_ctl_value_to_user 4 38587 NULL
+cosa_net_setup_rx_38594 cosa_net_setup_rx 2 38594 NULL
+compat_sys_ptrace_38595 compat_sys_ptrace 3-4 38595 NULL
+icn_writecmd_38629 icn_writecmd 2 38629 NULL
+ext2_readpages_38640 ext2_readpages 4 38640 NULL
+cma_create_area_38642 cma_create_area 2 38642 NULL
+audit_init_entry_38644 audit_init_entry 1 38644 NULL
+qp_broker_alloc_38646 qp_broker_alloc 5-6 38646 NULL
+mmc_send_cxd_data_38655 mmc_send_cxd_data 5 38655 NULL
+nouveau_instmem_create__38664 nouveau_instmem_create_ 4 38664 NULL
+cfg80211_send_disassoc_38678 cfg80211_send_disassoc 3 38678 NULL
+iscsit_dump_data_payload_38683 iscsit_dump_data_payload 2 38683 NULL
+ext4_wait_block_bitmap_38695 ext4_wait_block_bitmap 2 38695 NULL
+rbio_add_io_page_38700 rbio_add_io_page 6 38700 NULL
+find_next_usable_block_38716 find_next_usable_block 1-3 38716 NULL
+alloc_trace_probe_38720 alloc_trace_probe 6 38720 NULL
+phys_to_virt_38757 phys_to_virt 0-1 38757 NULL
+udf_readpages_38761 udf_readpages 4 38761 NULL
+iwl_dbgfs_thermal_throttling_read_38779 iwl_dbgfs_thermal_throttling_read 3 38779 NULL
+snd_gus_dram_write_38784 snd_gus_dram_write 4 38784 NULL
+err_decode_38804 err_decode 2 38804 NULL
+ipv6_renew_option_38813 ipv6_renew_option 3 38813 NULL
+sys_select_38827 sys_select 1 38827 NULL
+b43_txhdr_size_38832 b43_txhdr_size 0 38832 NULL
+direct_entry_38836 direct_entry 3 38836 NULL
+compat_udp_setsockopt_38840 compat_udp_setsockopt 5 38840 NULL
+interfaces_38859 interfaces 2 38859 NULL
+pci_msix_table_size_38867 pci_msix_table_size 0 38867 NULL
+sizeof_gpio_leds_priv_38882 sizeof_gpio_leds_priv 0-1 38882 NULL
+dbgfs_state_38894 dbgfs_state 3 38894 NULL
+f2fs_xattr_set_acl_38895 f2fs_xattr_set_acl 4 38895 NULL
+process_bulk_data_command_38906 process_bulk_data_command 4 38906 NULL
+ext3_trim_all_free_38929 ext3_trim_all_free 3-4-2 38929 NULL
+sbp_count_se_tpg_luns_38943 sbp_count_se_tpg_luns 0 38943 NULL
+__ath6kl_wmi_send_mgmt_cmd_38971 __ath6kl_wmi_send_mgmt_cmd 7 38971 NULL
+usb_maxpacket_38977 usb_maxpacket 0 38977 NULL
+OSDSetBlock_38986 OSDSetBlock 4-2 38986 NULL
+udf_new_block_38999 udf_new_block 4 38999 NULL
+get_nodes_39012 get_nodes 3 39012 NULL
+twl6030_interrupt_unmask_39013 twl6030_interrupt_unmask 2 39013 NULL
+acpi_install_gpe_block_39031 acpi_install_gpe_block 4 39031 NULL
+_zd_iowrite32v_async_locked_39034 _zd_iowrite32v_async_locked 3 39034 NULL
+line6_midibuf_read_39067 line6_midibuf_read 0-3 39067 NULL
+ext4_init_block_bitmap_39071 ext4_init_block_bitmap 3 39071 NULL
+tomoyo_truncate_39105 tomoyo_truncate 0 39105 NULL
+__kfifo_to_user_r_39123 __kfifo_to_user_r 3 39123 NULL
+ea_foreach_39133 ea_foreach 0 39133 NULL
+generic_permission_39150 generic_permission 0 39150 NULL
+alloc_ring_39151 alloc_ring 2-4 39151 NULL
+proc_coredump_filter_read_39153 proc_coredump_filter_read 3 39153 NULL
+create_bounce_buffer_39155 create_bounce_buffer 3 39155 NULL
+ext3_xattr_check_names_39174 ext3_xattr_check_names 0 39174 NULL
+init_list_set_39188 init_list_set 2-3 39188 NULL
+ubi_more_update_data_39189 ubi_more_update_data 4 39189 NULL
+qcam_read_bytes_39205 qcam_read_bytes 0 39205 NULL
+qla4_82xx_pci_mem_read_direct_39208 qla4_82xx_pci_mem_read_direct 2 39208 NULL
+vfio_group_fops_compat_ioctl_39219 vfio_group_fops_compat_ioctl 3 39219 NULL
+ivtv_v4l2_write_39226 ivtv_v4l2_write 3 39226 NULL
+batadv_tt_response_fill_table_39236 batadv_tt_response_fill_table 1 39236 NULL
+posix_acl_to_xattr_39237 posix_acl_to_xattr 0 39237 NULL
+drm_order_39244 drm_order 0 39244 NULL
+r128_compat_ioctl_39250 r128_compat_ioctl 2 39250 NULL nohasharray
+pwr_cont_miss_bcns_spread_read_39250 pwr_cont_miss_bcns_spread_read 3 39250 &r128_compat_ioctl_39250
+__skb_cow_39254 __skb_cow 2 39254 NULL
+ath6kl_wmi_set_appie_cmd_39266 ath6kl_wmi_set_appie_cmd 5 39266 NULL
+rx_filter_protection_filter_read_39282 rx_filter_protection_filter_read 3 39282 NULL
+__vmalloc_node_39308 __vmalloc_node 1 39308 NULL
+__cfg80211_connect_result_39326 __cfg80211_connect_result 4-6 39326 NULL
+wimax_msg_alloc_39343 wimax_msg_alloc 4 39343 NULL
+__cfg80211_send_deauth_39344 __cfg80211_send_deauth 3 39344 NULL
+__copy_from_user_nocache_39351 __copy_from_user_nocache 3 39351 NULL
+ide_complete_rq_39354 ide_complete_rq 3 39354 NULL
+do_write_log_from_user_39362 do_write_log_from_user 3 39362 NULL
+vortex_wtdma_getlinearpos_39371 vortex_wtdma_getlinearpos 0 39371 NULL
+regmap_name_read_file_39379 regmap_name_read_file 3 39379 NULL
+fnic_trace_debugfs_read_39380 fnic_trace_debugfs_read 3 39380 NULL
+ps_poll_ps_poll_utilization_read_39383 ps_poll_ps_poll_utilization_read 3 39383 NULL
+__send_to_port_39386 __send_to_port 3 39386 NULL
+user_power_read_39414 user_power_read 3 39414 NULL
+alloc_agpphysmem_i8xx_39427 alloc_agpphysmem_i8xx 1 39427 NULL
+sys_semop_39457 sys_semop 3 39457 NULL
+setkey_unaligned_39474 setkey_unaligned 3 39474 NULL
+do_get_mempolicy_39485 do_get_mempolicy 3 39485 NULL
+ieee80211_if_fmt_dot11MeshHWMPmaxPREQretries_39499 ieee80211_if_fmt_dot11MeshHWMPmaxPREQretries 3 39499 NULL
+atomic64_read_unchecked_39505 atomic64_read_unchecked 0 39505 NULL
+int_proc_write_39542 int_proc_write 3 39542 NULL
+pp_write_39554 pp_write 3 39554 NULL
+ol_dqblk_block_39558 ol_dqblk_block 0-3-2 39558 NULL
+datablob_format_39571 datablob_format 2 39571 NULL nohasharray
+ieee80211_if_read_fwded_mcast_39571 ieee80211_if_read_fwded_mcast 3 39571 &datablob_format_39571
+handle_response_icmp_39574 handle_response_icmp 7 39574 NULL
+mtdchar_compat_ioctl_39602 mtdchar_compat_ioctl 3 39602 NULL
+n_tty_compat_ioctl_helper_39605 n_tty_compat_ioctl_helper 4 39605 NULL
+ext_depth_39607 ext_depth 0 39607 NULL
+nfs_idmap_get_key_39616 nfs_idmap_get_key 2 39616 NULL
+sdio_readb_39618 sdio_readb 0 39618 NULL
+set_dev_class_39645 set_dev_class 4 39645 NULL nohasharray
+dm_exception_table_init_39645 dm_exception_table_init 2 39645 &set_dev_class_39645
+snd_rme32_capture_copy_39653 snd_rme32_capture_copy 5 39653 NULL
+tcp_try_rmem_schedule_39657 tcp_try_rmem_schedule 3 39657 NULL nohasharray
+prism2_info_hostscanresults_39657 prism2_info_hostscanresults 3 39657 &tcp_try_rmem_schedule_39657
+kvm_read_guest_cached_39666 kvm_read_guest_cached 4 39666 NULL
+v4l_stk_read_39672 v4l_stk_read 3 39672 NULL
+hsc_msg_len_get_39673 hsc_msg_len_get 0 39673 NULL
+do_surface_dirty_sou_39678 do_surface_dirty_sou 7 39678 NULL
+ftrace_pid_write_39710 ftrace_pid_write 3 39710 NULL
+tcf_csum_ipv4_tcp_39713 tcf_csum_ipv4_tcp 4 39713 NULL
+remap_to_origin_clear_discard_39767 remap_to_origin_clear_discard 3 39767 NULL
+ocfs2_pages_per_cluster_39790 ocfs2_pages_per_cluster 0 39790 NULL
+crypto_ablkcipher_blocksize_39811 crypto_ablkcipher_blocksize 0 39811 NULL
+security_inode_listsecurity_39812 security_inode_listsecurity 0 39812 NULL
+snd_pcm_oss_writev3_39818 snd_pcm_oss_writev3 3 39818 NULL
+sys_migrate_pages_39825 sys_migrate_pages 2 39825 NULL
+get_priv_size_39828 get_priv_size 0-1 39828 NULL
+pkt_add_39897 pkt_add 3 39897 NULL
+read_file_modal_eeprom_39909 read_file_modal_eeprom 3 39909 NULL
+gen_pool_add_virt_39913 gen_pool_add_virt 4 39913 NULL
+dw210x_op_rw_39915 dw210x_op_rw 6 39915 NULL
+aes_encrypt_interrupt_read_39919 aes_encrypt_interrupt_read 3 39919 NULL
+exofs_read_kern_39921 exofs_read_kern 6 39921 NULL nohasharray
+oom_score_adj_read_39921 oom_score_adj_read 3 39921 &exofs_read_kern_39921
+__spi_async_39932 __spi_async 0 39932 NULL
+__get_order_39935 __get_order 0 39935 NULL
+error_error_frame_read_39947 error_error_frame_read 3 39947 NULL nohasharray
+fwnet_pd_new_39947 fwnet_pd_new 4 39947 &error_error_frame_read_39947
+tty_prepare_flip_string_39955 tty_prepare_flip_string 3 39955 NULL
+dma_push_rx_39973 dma_push_rx 2 39973 NULL
+broadsheetfb_write_39976 broadsheetfb_write 3 39976 NULL
+mthca_array_init_39987 mthca_array_init 2 39987 NULL
+xen_hvm_config_40018 xen_hvm_config 2 40018 NULL
+nf_nat_icmpv6_reply_translation_40023 nf_nat_icmpv6_reply_translation 5 40023 NULL nohasharray
+ivtvfb_write_40023 ivtvfb_write 3 40023 &nf_nat_icmpv6_reply_translation_40023
+ea_foreach_i_40028 ea_foreach_i 0 40028 NULL
+datablob_hmac_append_40038 datablob_hmac_append 3 40038 NULL
+regmap_add_irq_chip_40042 regmap_add_irq_chip 4 40042 NULL
+add_tty_40055 add_tty 1 40055 NULL nohasharray
+l2cap_create_iframe_pdu_40055 l2cap_create_iframe_pdu 3 40055 &add_tty_40055
+atomic_xchg_40070 atomic_xchg 0 40070 NULL
+gen_pool_first_fit_40110 gen_pool_first_fit 2-3-4 40110 NULL
+sctp_setsockopt_delayed_ack_40129 sctp_setsockopt_delayed_ack 3 40129 NULL
+rx_rx_frame_checksum_read_40140 rx_rx_frame_checksum_read 3 40140 NULL
+iwch_alloc_fastreg_pbl_40153 iwch_alloc_fastreg_pbl 2 40153 NULL
+pt_write_40159 pt_write 3 40159 NULL
+scsi_sg_count_40182 scsi_sg_count 0 40182 NULL
+ipr_alloc_ucode_buffer_40199 ipr_alloc_ucode_buffer 1 40199 NULL nohasharray
+devnode_find_40199 devnode_find 3-2 40199 &ipr_alloc_ucode_buffer_40199
+allocate_probes_40204 allocate_probes 1 40204 NULL
+compat_put_long_40214 compat_put_long 1 40214 NULL
+au0828_v4l2_read_40220 au0828_v4l2_read 3 40220 NULL
+osst_read_40237 osst_read 3 40237 NULL
+lpage_info_slot_40243 lpage_info_slot 1-3 40243 NULL
+ocfs2_zero_extend_get_range_40248 ocfs2_zero_extend_get_range 4 40248 NULL
+of_get_child_count_40254 of_get_child_count 0 40254 NULL
+rs_sta_dbgfs_scale_table_read_40262 rs_sta_dbgfs_scale_table_read 3 40262 NULL
+usbnet_read_cmd_40275 usbnet_read_cmd 7 40275 NULL
+rx_xfr_hint_trig_read_40283 rx_xfr_hint_trig_read 3 40283 NULL
+crash_free_reserved_phys_range_40292 crash_free_reserved_phys_range 1 40292 NULL
+ubi_io_write_data_40305 ubi_io_write_data 4-5 40305 NULL
+batadv_tt_changes_fill_buff_40323 batadv_tt_changes_fill_buff 4 40323 NULL
+ib_get_mad_data_offset_40336 ib_get_mad_data_offset 0 40336 NULL
+mmio_read_40348 mmio_read 4 40348 NULL
+usb_dump_interface_40353 usb_dump_interface 0 40353 NULL
+ocfs2_release_clusters_40355 ocfs2_release_clusters 4 40355 NULL
+event_rx_mem_empty_read_40363 event_rx_mem_empty_read 3 40363 NULL
+ocfs2_check_range_for_refcount_40365 ocfs2_check_range_for_refcount 2-3 40365 NULL
+fwnet_incoming_packet_40380 fwnet_incoming_packet 3 40380 NULL
+brcmf_sdbrcm_get_image_40397 brcmf_sdbrcm_get_image 0-2 40397 NULL
+atmel_rmem16_40450 atmel_rmem16 0 40450 NULL
+tomoyo_update_policy_40458 tomoyo_update_policy 2 40458 NULL
+zd_usb_scnprint_id_40459 zd_usb_scnprint_id 0-3 40459 NULL
+batadv_hash_new_40491 batadv_hash_new 1 40491 NULL
+devcgroup_inode_permission_40492 devcgroup_inode_permission 0 40492 NULL
+tty_write_room_40495 tty_write_room 0 40495 NULL
+persistent_ram_new_40501 persistent_ram_new 1-2 40501 NULL
+sg_phys_40507 sg_phys 0 40507 NULL
+TSS_checkhmac2_40520 TSS_checkhmac2 5-7 40520 NULL
+ixgbe_dbg_reg_ops_read_40540 ixgbe_dbg_reg_ops_read 3 40540 NULL
+ima_write_policy_40548 ima_write_policy 3 40548 NULL
+esp_alloc_tmp_40558 esp_alloc_tmp 3-2 40558 NULL
+ufs_inode_getfrag_40560 ufs_inode_getfrag 2-4 40560 NULL
+skge_rx_get_40598 skge_rx_get 3 40598 NULL
+get_priv_descr_and_size_40612 get_priv_descr_and_size 0 40612 NULL
+bl_mark_sectors_init_40613 bl_mark_sectors_init 2-3 40613 NULL
+cpuset_sprintf_cpulist_40627 cpuset_sprintf_cpulist 0 40627 NULL
+twl4030_kpwrite_u8_40665 twl4030_kpwrite_u8 3 40665 NULL
+__cfg80211_roamed_40668 __cfg80211_roamed 4-6 40668 NULL
+pipeline_rx_complete_stat_fifo_int_read_40671 pipeline_rx_complete_stat_fifo_int_read 3 40671 NULL
+fops_read_40672 fops_read 3 40672 NULL
+alloc_rbio_40676 alloc_rbio 4 40676 NULL
+videobuf_dma_init_user_locked_40678 videobuf_dma_init_user_locked 3 40678 NULL
+nfc_hci_set_param_40697 nfc_hci_set_param 5 40697 NULL
+__seq_open_private_40715 __seq_open_private 3 40715 NULL
+fuse_readpages_40737 fuse_readpages 4 40737 NULL
+xfs_iext_remove_direct_40744 xfs_iext_remove_direct 3 40744 NULL nohasharray
+find_next_zero_bit_le_40744 find_next_zero_bit_le 0-2-3 40744 &xfs_iext_remove_direct_40744
+security_inode_listxattr_40752 security_inode_listxattr 0 40752 NULL
+fat_generic_compat_ioctl_40755 fat_generic_compat_ioctl 3 40755 NULL
+card_send_command_40757 card_send_command 3 40757 NULL
+ad1889_readl_40765 ad1889_readl 0 40765 NULL
+pg_write_40766 pg_write 3 40766 NULL
+show_list_40775 show_list 3 40775 NULL
+kfifo_out_copy_r_40784 kfifo_out_copy_r 0-3 40784 NULL
+bitmap_weight_40791 bitmap_weight 0-2 40791 NULL
+pyra_sysfs_read_40795 pyra_sysfs_read 6 40795 NULL
+netdev_alloc_skb_ip_align_40811 netdev_alloc_skb_ip_align 2 40811 NULL
+nl80211_send_roamed_40825 nl80211_send_roamed 5-7 40825 NULL
+__mlx4_qp_reserve_range_40847 __mlx4_qp_reserve_range 2-3 40847 NULL
+ocfs2_zero_partial_clusters_40856 ocfs2_zero_partial_clusters 2-3 40856 NULL
+v9fs_file_read_40858 v9fs_file_read 3 40858 NULL
+read_file_queue_40895 read_file_queue 3 40895 NULL
+waiters_read_40902 waiters_read 3 40902 NULL
+isdn_add_channels_40905 isdn_add_channels 3 40905 NULL
+gfs2_ea_find_40913 gfs2_ea_find 0 40913 NULL
+vol_cdev_write_40915 vol_cdev_write 3 40915 NULL
+snd_vx_create_40948 snd_vx_create 4 40948 NULL
+skb_end_offset_40949 skb_end_offset 0 40949 NULL
+wm8994_free_irq_40951 wm8994_free_irq 2 40951 NULL
+rds_sendmsg_40976 rds_sendmsg 4 40976 NULL
+il_dbgfs_fh_reg_read_40993 il_dbgfs_fh_reg_read 3 40993 NULL
+mac80211_format_buffer_41010 mac80211_format_buffer 2 41010 NULL
+mtd_block_isbad_41015 mtd_block_isbad 0 41015 NULL
+_req_append_segment_41031 _req_append_segment 2 41031 NULL
+mISDN_sock_sendmsg_41035 mISDN_sock_sendmsg 4 41035 NULL
+ocfs2_xattr_index_block_find_41040 ocfs2_xattr_index_block_find 0 41040 NULL
+vfs_listxattr_41062 vfs_listxattr 0 41062 NULL
+cfg80211_inform_bss_frame_41078 cfg80211_inform_bss_frame 4 41078 NULL
+roccat_read_41093 roccat_read 3 41093 NULL nohasharray
+nvme_map_user_pages_41093 nvme_map_user_pages 3-4 41093 &roccat_read_41093
+dma_attach_41094 dma_attach 5-6 41094 NULL
+provide_user_output_41105 provide_user_output 3 41105 NULL
+f_audio_buffer_alloc_41110 f_audio_buffer_alloc 1 41110 NULL
+v4l2_ctrl_new_int_menu_41151 v4l2_ctrl_new_int_menu 4 41151 NULL
+tx_frag_mpdu_alloc_failed_read_41167 tx_frag_mpdu_alloc_failed_read 3 41167 NULL
+dvb_ca_write_41171 dvb_ca_write 3 41171 NULL
+ol_quota_chunk_block_41177 ol_quota_chunk_block 0-2 41177 NULL
+netif_get_num_default_rss_queues_41187 netif_get_num_default_rss_queues 0 41187 NULL
+compat_sys_process_vm_writev_41194 compat_sys_process_vm_writev 3-5 41194 NULL
+dfs_file_write_41196 dfs_file_write 3 41196 NULL
+xfs_readdir_41200 xfs_readdir 3 41200 NULL
+ocfs2_read_quota_block_41207 ocfs2_read_quota_block 2 41207 NULL
+nfs_page_array_len_41219 nfs_page_array_len 0-2-1 41219 NULL
+hiddev_compat_ioctl_41255 hiddev_compat_ioctl 2-3 41255 NULL
+erst_read_41260 erst_read 0 41260 NULL
+__fprog_create_41263 __fprog_create 2 41263 NULL
+alloc_context_41283 alloc_context 1 41283 NULL
+arch_gnttab_map_shared_41306 arch_gnttab_map_shared 3 41306 NULL
+twl_change_queue_depth_41342 twl_change_queue_depth 2 41342 NULL
+cnic_init_id_tbl_41354 cnic_init_id_tbl 2 41354 NULL
+jbd2_alloc_41359 jbd2_alloc 1 41359 NULL
+kmp_init_41373 kmp_init 2 41373 NULL
+isr_commands_read_41398 isr_commands_read 3 41398 NULL
+is_writethrough_io_41406 is_writethrough_io 3 41406 NULL
+sys_flistxattr_41407 sys_flistxattr 3 41407 NULL
+rx_defrag_decrypt_failed_read_41411 rx_defrag_decrypt_failed_read 3 41411 NULL
+xfs_iext_add_41422 xfs_iext_add 3 41422 NULL
+vsock_dev_compat_ioctl_41427 vsock_dev_compat_ioctl 3 41427 NULL
+isdn_ppp_fill_rq_41428 isdn_ppp_fill_rq 2 41428 NULL
+lbs_rdrf_read_41431 lbs_rdrf_read 3 41431 NULL
+iio_device_alloc_41440 iio_device_alloc 1 41440 NULL
+ntfs_file_buffered_write_41442 ntfs_file_buffered_write 4-6 41442 NULL
+pcpu_build_alloc_info_41443 pcpu_build_alloc_info 1-2-3 41443 NULL
+layout_leb_in_gaps_41470 layout_leb_in_gaps 0 41470 NULL
+rt2x00debug_write_rfcsr_41473 rt2x00debug_write_rfcsr 3 41473 NULL
+wep_interrupt_read_41492 wep_interrupt_read 3 41492 NULL
+hpfs_translate_name_41497 hpfs_translate_name 3 41497 NULL
+xfrm_hash_new_size_41505 xfrm_hash_new_size 0-1 41505 NULL
+ldisc_receive_41516 ldisc_receive 4 41516 NULL
+tx_tx_frame_checksum_read_41553 tx_tx_frame_checksum_read 3 41553 NULL
+ath6kl_endpoint_stats_read_41554 ath6kl_endpoint_stats_read 3 41554 NULL
+nr_status_frames_41559 nr_status_frames 0-1 41559 NULL
+batadv_receive_client_update_packet_41578 batadv_receive_client_update_packet 3 41578 NULL
+rng_dev_read_41581 rng_dev_read 3 41581 NULL
+read_file_rx_chainmask_41605 read_file_rx_chainmask 3 41605 NULL
+vga_io_r_41609 vga_io_r 0 41609 NULL
+tcp_hdrlen_41610 tcp_hdrlen 0 41610 NULL
+usb_endpoint_maxp_41613 usb_endpoint_maxp 0 41613 NULL
+a2mp_send_41615 a2mp_send 4 41615 NULL
+mempool_create_kmalloc_pool_41650 mempool_create_kmalloc_pool 1 41650 NULL
+rx_rx_pre_complt_read_41653 rx_rx_pre_complt_read 3 41653 NULL
+get_std_timing_41654 get_std_timing 0 41654 NULL
+squashfs_cache_init_41656 squashfs_cache_init 2 41656 NULL
+ieee80211_if_fmt_bssid_41677 ieee80211_if_fmt_bssid 3 41677 NULL
+params_period_bytes_41683 params_period_bytes 0 41683 NULL
+aac_src_ioremap_41688 aac_src_ioremap 2 41688 NULL
+bdx_tx_db_init_41719 bdx_tx_db_init 2 41719 NULL
+sys_pwritev_41722 sys_pwritev 3 41722 NULL
+get_bios_ebda_41730 get_bios_ebda 0 41730 NULL
+fillonedir_41746 fillonedir 3 41746 NULL
+ocfs2_dx_dir_rebalance_41793 ocfs2_dx_dir_rebalance 7 41793 NULL
+hsi_alloc_controller_41802 hsi_alloc_controller 1 41802 NULL
+da9052_enable_irq_41814 da9052_enable_irq 2 41814 NULL
+sco_send_frame_41815 sco_send_frame 3 41815 NULL
+lp_gpio_to_irq_41822 lp_gpio_to_irq 2 41822 NULL
+ixgbe_dbg_netdev_ops_read_41839 ixgbe_dbg_netdev_ops_read 3 41839 NULL
+do_ip_setsockopt_41852 do_ip_setsockopt 5 41852 NULL
+keyctl_instantiate_key_41855 keyctl_instantiate_key 3 41855 NULL
+ieee80211_rx_radiotap_space_41870 ieee80211_rx_radiotap_space 0 41870 NULL
+get_fdb_entries_41916 get_fdb_entries 3 41916 NULL
+find_ge_pid_41918 find_ge_pid 1 41918 NULL
+build_inv_iotlb_pages_41922 build_inv_iotlb_pages 4-5 41922 NULL
+nfsd_getxattr_41934 nfsd_getxattr 0 41934 NULL
+ext4_da_write_inline_data_begin_41935 ext4_da_write_inline_data_begin 3-4 41935 NULL
+ocfs2_xattr_bucket_get_name_value_41949 ocfs2_xattr_bucket_get_name_value 0 41949 NULL
+portnames_read_41958 portnames_read 3 41958 NULL
+ubi_self_check_all_ff_41959 ubi_self_check_all_ff 4 41959 NULL
+dst_mtu_41969 dst_mtu 0 41969 NULL
+cx24116_writeregN_41975 cx24116_writeregN 4 41975 NULL
+ubi_io_is_bad_41983 ubi_io_is_bad 0 41983 NULL
+lguest_map_42008 lguest_map 1-2 42008 NULL
+pool_allocate_42012 pool_allocate 3 42012 NULL
+spidev_sync_read_42014 spidev_sync_read 0 42014 NULL
+acpi_ut_create_buffer_object_42030 acpi_ut_create_buffer_object 1 42030 NULL
+__hwahc_op_set_gtk_42038 __hwahc_op_set_gtk 4 42038 NULL
+irda_sendmsg_ultra_42047 irda_sendmsg_ultra 4 42047 NULL
+dma_generic_alloc_coherent_42048 dma_generic_alloc_coherent 2 42048 NULL nohasharray
+jffs2_do_link_42048 jffs2_do_link 6 42048 &dma_generic_alloc_coherent_42048
+ps_poll_upsd_max_ap_turn_read_42050 ps_poll_upsd_max_ap_turn_read 3 42050 NULL
+InterfaceTransmitPacket_42058 InterfaceTransmitPacket 3 42058 NULL
+alloc_bitset_42085 alloc_bitset 1 42085 NULL
+scsi_execute_req_42088 scsi_execute_req 5 42088 NULL
+sk_chk_filter_42095 sk_chk_filter 2 42095 NULL
+submit_inquiry_42108 submit_inquiry 3 42108 NULL
+sysfs_read_file_42113 sysfs_read_file 3 42113 NULL nohasharray
+dw_dma_cyclic_prep_42113 dw_dma_cyclic_prep 3-4 42113 &sysfs_read_file_42113
+Read_hfc16_stable_42131 Read_hfc16_stable 0 42131 NULL
+mmc_align_data_size_42161 mmc_align_data_size 0-2 42161 NULL
+read_file_base_eeprom_42168 read_file_base_eeprom 3 42168 NULL
+iwl_mvm_send_cmd_42173 iwl_mvm_send_cmd 0 42173 NULL
+oprofilefs_str_to_user_42182 oprofilefs_str_to_user 3 42182 NULL
+get_znodes_to_commit_42201 get_znodes_to_commit 0 42201 NULL
+btmrvl_hsmode_write_42252 btmrvl_hsmode_write 3 42252 NULL
+rx_defrag_need_decrypt_read_42253 rx_defrag_need_decrypt_read 3 42253 NULL
+netxen_nic_map_indirect_address_128M_42257 netxen_nic_map_indirect_address_128M 2 42257 NULL
+savu_sysfs_write_42273 savu_sysfs_write 6 42273 NULL
+snd_pcm_hw_param_value_max_42280 snd_pcm_hw_param_value_max 0 42280 NULL
+sel_read_perm_42302 sel_read_perm 3 42302 NULL
+sctp_setsockopt_del_key_42304 sctp_setsockopt_del_key 3 42304 NULL nohasharray
+ulong_read_file_42304 ulong_read_file 3 42304 &sctp_setsockopt_del_key_42304
+gfn_to_hva_42305 gfn_to_hva 0-2 42305 NULL
+xfs_vm_readpages_42308 xfs_vm_readpages 4 42308 NULL
+free_cblock_42318 free_cblock 2 42318 NULL
+hysdn_conf_read_42324 hysdn_conf_read 3 42324 NULL
+tcp_sync_mss_42330 tcp_sync_mss 0-2 42330 NULL
+snd_pcm_plug_alloc_42339 snd_pcm_plug_alloc 2 42339 NULL
+ide_raw_taskfile_42355 ide_raw_taskfile 4 42355 NULL
+il_dbgfs_disable_ht40_read_42386 il_dbgfs_disable_ht40_read 3 42386 NULL
+msnd_fifo_read_42406 msnd_fifo_read 0-3 42406 NULL
+krng_get_random_42420 krng_get_random 3 42420 NULL
+gsm_data_alloc_42437 gsm_data_alloc 3 42437 NULL
+key_conf_keyidx_read_42443 key_conf_keyidx_read 3 42443 NULL
+snd_pcm_action_group_42452 snd_pcm_action_group 0 42452 NULL
+tcm_loop_change_queue_depth_42454 tcm_loop_change_queue_depth 2 42454 NULL
+tc3589x_gpio_irq_get_virq_42457 tc3589x_gpio_irq_get_virq 2 42457 NULL
+ext3_valid_block_bitmap_42459 ext3_valid_block_bitmap 3 42459 NULL
+__simple_xattr_set_42474 __simple_xattr_set 4 42474 NULL
+follow_hugetlb_page_42486 follow_hugetlb_page 0-7 42486 NULL
+omfs_readpages_42490 omfs_readpages 4 42490 NULL
+brcmf_sdbrcm_bus_txctl_42492 brcmf_sdbrcm_bus_txctl 3 42492 NULL
+kvm_write_wall_clock_42520 kvm_write_wall_clock 2 42520 NULL
+smk_write_netlbladdr_42525 smk_write_netlbladdr 3 42525 NULL
+snd_emux_create_port_42533 snd_emux_create_port 3 42533 NULL
+dbAllocNear_42546 dbAllocNear 0 42546 NULL
+i915_ring_stop_read_42549 i915_ring_stop_read 3 42549 NULL nohasharray
+ath6kl_wmi_proc_events_vif_42549 ath6kl_wmi_proc_events_vif 5 42549 &i915_ring_stop_read_42549
+iwl_print_event_log_42566 iwl_print_event_log 0-5-7 42566 NULL
+xfrm_new_hash_mask_42579 xfrm_new_hash_mask 0-1 42579 NULL
+oom_score_adj_write_42594 oom_score_adj_write 3 42594 NULL
+map_state_42602 map_state 1 42602 NULL nohasharray
+__pskb_pull_42602 __pskb_pull 2 42602 &map_state_42602
+nd_get_link_42603 nd_get_link 0 42603 NULL
+sys_move_pages_42626 sys_move_pages 2 42626 NULL
+ieee80211_if_fmt_dot11MeshHWMPactivePathTimeout_42635 ieee80211_if_fmt_dot11MeshHWMPactivePathTimeout 3 42635 NULL
+scsi_activate_tcq_42640 scsi_activate_tcq 2 42640 NULL
+br_mdb_rehash_42643 br_mdb_rehash 2 42643 NULL
+l2tp_xmit_skb_42672 l2tp_xmit_skb 3 42672 NULL
+request_key_and_link_42693 request_key_and_link 4 42693 NULL
+vb2_read_42703 vb2_read 3 42703 NULL
+sierra_net_send_cmd_42708 sierra_net_send_cmd 3 42708 NULL
+__ocfs2_decrease_refcount_42717 __ocfs2_decrease_refcount 4 42717 NULL
+dvb_demux_ioctl_42733 dvb_demux_ioctl 2 42733 NULL
+set_aoe_iflist_42737 set_aoe_iflist 2 42737 NULL
+ax25_setsockopt_42740 ax25_setsockopt 5 42740 NULL
+xen_bind_pirq_gsi_to_irq_42750 xen_bind_pirq_gsi_to_irq 1 42750 NULL
+snd_midi_event_decode_42780 snd_midi_event_decode 0 42780 NULL
+cryptd_hash_setkey_42781 cryptd_hash_setkey 3 42781 NULL
+koneplus_sysfs_read_42792 koneplus_sysfs_read 6 42792 NULL
+ntfs_attr_extend_allocation_42796 ntfs_attr_extend_allocation 0-2 42796 NULL
+fw_device_op_compat_ioctl_42804 fw_device_op_compat_ioctl 2-3 42804 NULL
+drm_ioctl_42813 drm_ioctl 2 42813 NULL
+iwl_dbgfs_ucode_bt_stats_read_42820 iwl_dbgfs_ucode_bt_stats_read 3 42820 NULL
+set_arg_42824 set_arg 3 42824 NULL
+ocfs2_desc_bitmap_to_cluster_off_42831 ocfs2_desc_bitmap_to_cluster_off 2 42831 NULL
+prandom_u32_42853 prandom_u32 0 42853 NULL
+of_property_count_strings_42863 of_property_count_strings 0 42863 NULL
+ocfs2_clusters_for_bytes_42872 ocfs2_clusters_for_bytes 0-2 42872 NULL
+pskb_expand_head_42881 pskb_expand_head 2-3 42881 NULL
+vt_compat_ioctl_42887 vt_compat_ioctl 3 42887 NULL
+tipc_port_recv_sections_42890 tipc_port_recv_sections 4 42890 NULL
+xpc_kmalloc_cacheline_aligned_42895 xpc_kmalloc_cacheline_aligned 1 42895 NULL
+SendTxCommandPacket_42901 SendTxCommandPacket 3 42901 NULL
+hd_end_request_42904 hd_end_request 2 42904 NULL
+sta_last_rx_rate_read_42909 sta_last_rx_rate_read 3 42909 NULL
+sctp_getsockopt_maxburst_42941 sctp_getsockopt_maxburst 2 42941 NULL
+get_unmapped_area_42944 get_unmapped_area 0 42944 NULL
+sys_sethostname_42962 sys_sethostname 2 42962 NULL
+read_file_node_stat_42964 read_file_node_stat 3 42964 NULL
+compat_udpv6_setsockopt_42981 compat_udpv6_setsockopt 5 42981 NULL
+snd_timer_user_ioctl_compat_42985 snd_timer_user_ioctl_compat 3 42985 NULL
+nfs_idmap_get_desc_42990 nfs_idmap_get_desc 4-2 42990 NULL
+mlx4_qp_reserve_range_43000 mlx4_qp_reserve_range 2-3 43000 NULL
+isr_rx_mem_overflow_read_43025 isr_rx_mem_overflow_read 3 43025 NULL
+wep_default_key_count_read_43035 wep_default_key_count_read 3 43035 NULL
+nouveau_gpuobj_create__43072 nouveau_gpuobj_create_ 9 43072 NULL
+nfs_map_group_to_gid_43082 nfs_map_group_to_gid 3 43082 NULL
+cpuset_sprintf_memlist_43088 cpuset_sprintf_memlist 0 43088 NULL
+ieee80211_if_fmt_drop_unencrypted_43107 ieee80211_if_fmt_drop_unencrypted 3 43107 NULL
+read_file_dfs_43145 read_file_dfs 3 43145 NULL
+uuid_string_43154 uuid_string 0 43154 NULL
+usb_string_sub_43164 usb_string_sub 0 43164 NULL
+il_dbgfs_power_save_status_read_43165 il_dbgfs_power_save_status_read 3 43165 NULL
+ath6kl_set_assoc_req_ies_43185 ath6kl_set_assoc_req_ies 3 43185 NULL
+process_measurement_43190 process_measurement 0 43190 NULL
+ext4_xattr_ibody_get_43200 ext4_xattr_ibody_get 0 43200 NULL
+uio_write_43202 uio_write 3 43202 NULL
+iso_callback_43208 iso_callback 3 43208 NULL
+f2fs_acl_from_disk_43210 f2fs_acl_from_disk 2 43210 NULL
+atomic_long_add_return_43217 atomic_long_add_return 1 43217 NULL
+comedi_compat_ioctl_43218 comedi_compat_ioctl 3 43218 NULL
+vmemmap_alloc_block_43245 vmemmap_alloc_block 1 43245 NULL
+fixup_leb_43256 fixup_leb 3 43256 NULL
+ide_end_rq_43269 ide_end_rq 4 43269 NULL
+evtchn_write_43278 evtchn_write 3 43278 NULL
+filemap_write_and_wait_range_43279 filemap_write_and_wait_range 0 43279 NULL
+mpage_alloc_43299 mpage_alloc 3 43299 NULL
+get_nr_irqs_gsi_43315 get_nr_irqs_gsi 0 43315 NULL
+mmu_set_spte_43327 mmu_set_spte 6-7 43327 NULL
+__ext4_get_inode_loc_43332 __ext4_get_inode_loc 0 43332 NULL
+kvm_host_page_size_43348 kvm_host_page_size 2 43348 NULL
+gart_free_coherent_43362 gart_free_coherent 4-2 43362 NULL
+__alloc_bootmem_low_43423 __alloc_bootmem_low 1-2 43423 NULL nohasharray
+gdm_wimax_netif_rx_43423 gdm_wimax_netif_rx 3 43423 &__alloc_bootmem_low_43423
+usb_alloc_urb_43436 usb_alloc_urb 1 43436 NULL
+ucs2_strsize_43438 ucs2_strsize 0 43438 NULL
+ath6kl_wmi_roam_tbl_event_rx_43440 ath6kl_wmi_roam_tbl_event_rx 3 43440 NULL
+usemap_size_43443 usemap_size 0-2-1 43443 NULL nohasharray
+usb_string_43443 usb_string 0 43443 &usemap_size_43443
+alloc_new_reservation_43480 alloc_new_reservation 4 43480 NULL
+tx_tx_data_prepared_read_43497 tx_tx_data_prepared_read 3 43497 NULL
+ieee80211_if_fmt_dot11MeshHWMPnetDiameterTraversalTime_43505 ieee80211_if_fmt_dot11MeshHWMPnetDiameterTraversalTime 3 43505 NULL
+do_readlink_43518 do_readlink 2 43518 NULL
+dvb_ca_en50221_io_write_43533 dvb_ca_en50221_io_write 3 43533 NULL
+cachefiles_daemon_write_43535 cachefiles_daemon_write 3 43535 NULL
+tx_frag_failed_read_43540 tx_frag_failed_read 3 43540 NULL nohasharray
+ufs_alloccg_block_43540 ufs_alloccg_block 3-0 43540 &tx_frag_failed_read_43540
+ath_rx_init_43564 ath_rx_init 2 43564 NULL
+_fc_frame_alloc_43568 _fc_frame_alloc 1 43568 NULL
+rpc_malloc_43573 rpc_malloc 2 43573 NULL
+lpfc_idiag_drbacc_read_reg_43606 lpfc_idiag_drbacc_read_reg 0-3 43606 NULL
+proc_read_43614 proc_read 3 43614 NULL
+bio_integrity_tag_43658 bio_integrity_tag 3 43658 NULL
+ext4_acl_count_43659 ext4_acl_count 0-1 43659 NULL
+dmam_declare_coherent_memory_43679 dmam_declare_coherent_memory 4-2 43679 NULL
+calgary_map_page_43686 calgary_map_page 3-4 43686 NULL
+max77693_bulk_write_43698 max77693_bulk_write 2-3 43698 NULL
+snd_rme32_playback_copy_43732 snd_rme32_playback_copy 5 43732 NULL
+ocfs2_replace_clusters_43733 ocfs2_replace_clusters 5 43733 NULL
+osdv1_attr_list_elem_size_43747 osdv1_attr_list_elem_size 0-1 43747 NULL
+__bm_find_next_43748 __bm_find_next 2 43748 NULL
+gigaset_initcs_43753 gigaset_initcs 2 43753 NULL
+sctp_setsockopt_active_key_43755 sctp_setsockopt_active_key 3 43755 NULL
+ocfs2_xattr_get_value_outside_43787 ocfs2_xattr_get_value_outside 0 43787 NULL nohasharray
+byte_pos_43787 byte_pos 0-2 43787 &ocfs2_xattr_get_value_outside_43787
+btrfs_copy_from_user_43806 btrfs_copy_from_user 3-1 43806 NULL
+ext4_read_block_bitmap_43814 ext4_read_block_bitmap 2 43814 NULL
+ieee80211_if_fmt_element_ttl_43825 ieee80211_if_fmt_element_ttl 3 43825 NULL
+ieee80211_alloc_hw_43829 ieee80211_alloc_hw 1 43829 NULL
+p54_download_eeprom_43842 p54_download_eeprom 4 43842 NULL
+read_flush_43851 read_flush 3 43851 NULL
+ocfs2_block_group_find_clear_bits_43874 ocfs2_block_group_find_clear_bits 4 43874 NULL
+pm860x_bulk_write_43875 pm860x_bulk_write 2-3 43875 NULL
+prism2_sta_send_mgmt_43916 prism2_sta_send_mgmt 5 43916 NULL
+SendString_43928 SendString 3 43928 NULL
+xen_register_gsi_43946 xen_register_gsi 1-2 43946 NULL
+stats_dot11RTSFailureCount_read_43948 stats_dot11RTSFailureCount_read 3 43948 NULL
+__get_required_blob_size_43980 __get_required_blob_size 0-2-3 43980 NULL
+nla_reserve_43984 nla_reserve 3 43984 NULL
+__clkdev_alloc_43990 __clkdev_alloc 1 43990 NULL
+scsi_command_size_43992 scsi_command_size 0 43992 NULL nohasharray
+bcm_recvmsg_43992 bcm_recvmsg 4 43992 &scsi_command_size_43992
+emit_flags_44006 emit_flags 4-3 44006 NULL
+write_flush_procfs_44011 write_flush_procfs 3 44011 NULL
+swiotlb_unmap_page_44063 swiotlb_unmap_page 2 44063 NULL
+load_discard_44083 load_discard 3 44083 NULL
+xlog_recover_add_to_cont_trans_44102 xlog_recover_add_to_cont_trans 4 44102 NULL
+tracing_set_trace_read_44122 tracing_set_trace_read 3 44122 NULL
+vmw_gmr_bind_44130 vmw_gmr_bind 3 44130 NULL
+scsi_get_resid_44147 scsi_get_resid 0 44147 NULL
+ubifs_find_dirty_idx_leb_44169 ubifs_find_dirty_idx_leb 0 44169 NULL
+ocfs2_xattr_bucket_find_44174 ocfs2_xattr_bucket_find 0 44174 NULL
+handle_eviocgbit_44193 handle_eviocgbit 3 44193 NULL
+IO_APIC_get_PCI_irq_vector_44198 IO_APIC_get_PCI_irq_vector 0 44198 NULL
+__set_free_44211 __set_free 2 44211 NULL
+claim_ptd_buffers_44213 claim_ptd_buffers 3 44213 NULL
+srp_alloc_iu_44227 srp_alloc_iu 2 44227 NULL
+ioapic_register_intr_44238 ioapic_register_intr 1 44238 NULL
+scsi_track_queue_full_44239 scsi_track_queue_full 2 44239 NULL
+tc3589x_gpio_irq_map_44245 tc3589x_gpio_irq_map 2 44245 NULL
+enlarge_skb_44248 enlarge_skb 2 44248 NULL
+ufs_clusteracct_44293 ufs_clusteracct 3 44293 NULL
+ocfs2_zero_range_for_truncate_44294 ocfs2_zero_range_for_truncate 3 44294 NULL
+ath6kl_keepalive_read_44303 ath6kl_keepalive_read 3 44303 NULL
+bitmap_scnprintf_44318 bitmap_scnprintf 2 44318 NULL
+dispatch_proc_write_44320 dispatch_proc_write 3 44320 NULL
+ubi_eba_write_leb_st_44343 ubi_eba_write_leb_st 5 44343 NULL
+nfs_fscache_get_super_cookie_44355 nfs_fscache_get_super_cookie 3 44355 NULL nohasharray
+blk_queue_init_tags_44355 blk_queue_init_tags 2 44355 &nfs_fscache_get_super_cookie_44355
+__is_discarded_44359 __is_discarded 2 44359 NULL
+rts_threshold_read_44384 rts_threshold_read 3 44384 NULL
+aoedev_flush_44398 aoedev_flush 2 44398 NULL
+drm_buffer_alloc_44405 drm_buffer_alloc 2 44405 NULL
+osst_do_scsi_44410 osst_do_scsi 4 44410 NULL
+check_user_page_hwpoison_44412 check_user_page_hwpoison 1 44412 NULL
+ieee80211_if_read_rc_rateidx_mcs_mask_5ghz_44423 ieee80211_if_read_rc_rateidx_mcs_mask_5ghz 3 44423 NULL
+prandom_u32_state_44445 prandom_u32_state 0 44445 NULL
+___alloc_bootmem_node_nopanic_44461 ___alloc_bootmem_node_nopanic 2-3 44461 NULL
+btrfs_chunk_item_size_44478 btrfs_chunk_item_size 0-1 44478 NULL
+sdio_align_size_44489 sdio_align_size 0-2 44489 NULL
+ieee80211_if_read_dropped_frames_ttl_44500 ieee80211_if_read_dropped_frames_ttl 3 44500 NULL
+security_getprocattr_44505 security_getprocattr 0 44505 NULL nohasharray
+iwl_dbgfs_sram_read_44505 iwl_dbgfs_sram_read 3 44505 &security_getprocattr_44505
+spidev_write_44510 spidev_write 3 44510 NULL
+sys_msgsnd_44537 sys_msgsnd 3 44537 NULL nohasharray
+comm_write_44537 comm_write 3 44537 &sys_msgsnd_44537
+dgrp_config_proc_write_44571 dgrp_config_proc_write 3 44571 NULL
+snd_pcm_alloc_vmalloc_buffer_44595 snd_pcm_alloc_vmalloc_buffer 2 44595 NULL
+slip_compat_ioctl_44599 slip_compat_ioctl 4 44599 NULL
+brcmf_sdbrcm_glom_len_44618 brcmf_sdbrcm_glom_len 0 44618 NULL
+cfpkt_add_body_44630 cfpkt_add_body 3 44630 NULL
+ext2_new_block_44645 ext2_new_block 2 44645 NULL
+alloc_ctrl_packet_44667 alloc_ctrl_packet 1 44667 NULL
+mpi_resize_44674 mpi_resize 2 44674 NULL
+ts_read_44687 ts_read 3 44687 NULL
+qib_get_user_pages_44689 qib_get_user_pages 1-2 44689 NULL
+_zd_iowrite32v_locked_44725 _zd_iowrite32v_locked 3 44725 NULL
+clusterip_proc_write_44729 clusterip_proc_write 3 44729 NULL
+fib_count_nexthops_44730 fib_count_nexthops 0 44730 NULL
+key_tx_rx_count_read_44742 key_tx_rx_count_read 3 44742 NULL
+WIL_GET_BITS_44747 WIL_GET_BITS 0-1-2-3 44747 NULL
+set_brk_44749 set_brk 1 44749 NULL
+tnode_new_44757 tnode_new 3 44757 NULL nohasharray
+pty_write_44757 pty_write 3 44757 &tnode_new_44757
+__videobuf_copy_stream_44769 __videobuf_copy_stream 4 44769 NULL
+handsfree_ramp_44777 handsfree_ramp 2 44777 NULL
+sctp_setsockopt_44788 sctp_setsockopt 5 44788 NULL
+rx_dropped_read_44799 rx_dropped_read 3 44799 NULL
+qla4xxx_alloc_work_44813 qla4xxx_alloc_work 2 44813 NULL
+rmap_write_protect_44833 rmap_write_protect 2 44833 NULL
+sisusb_write_44834 sisusb_write 3 44834 NULL
+nl80211_send_unprot_disassoc_44846 nl80211_send_unprot_disassoc 4 44846 NULL
+kvm_read_hva_44847 kvm_read_hva 3 44847 NULL
+skb_availroom_44883 skb_availroom 0 44883 NULL
+nf_bridge_encap_header_len_44890 nf_bridge_encap_header_len 0 44890 NULL
+do_tty_write_44896 do_tty_write 5 44896 NULL
+tx_queue_status_read_44978 tx_queue_status_read 3 44978 NULL
+nf_nat_seq_adjust_44989 nf_nat_seq_adjust 4 44989 NULL
+bytepos_delta_45017 bytepos_delta 0 45017 NULL
+read_block_bitmap_45021 read_block_bitmap 2 45021 NULL nohasharray
+ptrace_writedata_45021 ptrace_writedata 4-3 45021 &read_block_bitmap_45021
+vhci_get_user_45039 vhci_get_user 3 45039 NULL
+sel_write_user_45060 sel_write_user 3 45060 NULL
+snd_mixart_BA0_read_45069 snd_mixart_BA0_read 5 45069 NULL nohasharray
+do_video_ioctl_45069 do_video_ioctl 3 45069 &snd_mixart_BA0_read_45069
+kvm_mmu_page_get_gfn_45110 kvm_mmu_page_get_gfn 0-2 45110 NULL
+pwr_missing_bcns_cnt_read_45113 pwr_missing_bcns_cnt_read 3 45113 NULL
+usbdev_read_45114 usbdev_read 3 45114 NULL
+send_to_tty_45141 send_to_tty 3 45141 NULL
+stmpe_irq_map_45146 stmpe_irq_map 2 45146 NULL
+crypto_aead_blocksize_45148 crypto_aead_blocksize 0 45148 NULL
+gen_bitmask_string_45149 gen_bitmask_string 6 45149 NULL
+ocfs2_remove_inode_range_45156 ocfs2_remove_inode_range 3-4 45156 NULL nohasharray
+device_write_45156 device_write 3 45156 &ocfs2_remove_inode_range_45156
+ocfs2_dq_frozen_trigger_45159 ocfs2_dq_frozen_trigger 4 45159 NULL
+tomoyo_write_self_45161 tomoyo_write_self 3 45161 NULL
+sta_agg_status_write_45164 sta_agg_status_write 3 45164 NULL
+snd_sb_csp_load_user_45190 snd_sb_csp_load_user 3 45190 NULL
+num_clusters_in_group_45194 num_clusters_in_group 2 45194 NULL
+add_child_45201 add_child 4 45201 NULL
+iso_alloc_urb_45206 iso_alloc_urb 4-5 45206 NULL
+spi_alloc_master_45223 spi_alloc_master 2 45223 NULL
+__dirty_45228 __dirty 2 45228 NULL
+ieee80211_if_read_peer_45233 ieee80211_if_read_peer 3 45233 NULL
+input_mt_init_slots_45279 input_mt_init_slots 2 45279 NULL
+vcc_compat_ioctl_45291 vcc_compat_ioctl 3 45291 NULL
+snd_pcm_oss_sync1_45298 snd_pcm_oss_sync1 2 45298 NULL
+pte_val_45313 pte_val 0 45313 NULL
+copy_vm86_regs_from_user_45340 copy_vm86_regs_from_user 3 45340 NULL
+lane2_associate_req_45398 lane2_associate_req 4 45398 NULL
+keymap_store_45406 keymap_store 4 45406 NULL
+paging64_gva_to_gpa_45421 paging64_gva_to_gpa 2 45421 NULL nohasharray
+ieee80211_if_fmt_dot11MeshHWMProotInterval_45421 ieee80211_if_fmt_dot11MeshHWMProotInterval 3 45421 &paging64_gva_to_gpa_45421
+tty_buffer_alloc_45437 tty_buffer_alloc 2 45437 NULL
+intel_render_ring_init_dri_45446 intel_render_ring_init_dri 2-3 45446 NULL
+__node_remap_45458 __node_remap 4 45458 NULL
+rds_ib_set_wr_signal_state_45463 rds_ib_set_wr_signal_state 0 45463 NULL
+udp_manip_pkt_45467 udp_manip_pkt 4 45467 NULL
+tracing_read_dyn_info_45468 tracing_read_dyn_info 3 45468 NULL
+arizona_init_fll_45503 arizona_init_fll 5 45503 NULL
+rds_message_copy_from_user_45510 rds_message_copy_from_user 3 45510 NULL
+sys_lgetxattr_45531 sys_lgetxattr 4 45531 NULL
+cgroup_read_u64_45532 cgroup_read_u64 5 45532 NULL
+copy_macs_45534 copy_macs 4 45534 NULL
+nla_attr_size_45545 nla_attr_size 0-1 45545 NULL
+v9fs_direct_read_45546 v9fs_direct_read 3 45546 NULL
+cx18_copy_mdl_to_user_45549 cx18_copy_mdl_to_user 4 45549 NULL
+atomic_long_sub_return_45551 atomic_long_sub_return 1 45551 NULL
+ext3_group_first_block_no_45555 ext3_group_first_block_no 0-2 45555 NULL
+stats_dot11ACKFailureCount_read_45558 stats_dot11ACKFailureCount_read 3 45558 NULL
+_regmap_bus_raw_write_45559 _regmap_bus_raw_write 2 45559 NULL
+posix_acl_xattr_size_45561 posix_acl_xattr_size 0-1 45561 NULL
+venus_rmdir_45564 venus_rmdir 4 45564 NULL
+ipath_create_cq_45586 ipath_create_cq 2 45586 NULL
+rdma_set_ib_paths_45592 rdma_set_ib_paths 3 45592 NULL
+hidraw_get_report_45609 hidraw_get_report 3 45609 NULL
+audit_log_n_hex_45617 audit_log_n_hex 3 45617 NULL
+ebitmap_next_positive_45651 ebitmap_next_positive 3 45651 NULL
+dma_map_cont_45668 dma_map_cont 5 45668 NULL
+compat_mpctl_ioctl_45671 compat_mpctl_ioctl 2 45671 NULL
+dgram_sendmsg_45679 dgram_sendmsg 4 45679 NULL
+smk_write_ambient_45691 smk_write_ambient 3 45691 NULL
+dm_compat_ctl_ioctl_45692 dm_compat_ctl_ioctl 3 45692 NULL
+unix_dgram_sendmsg_45699 unix_dgram_sendmsg 4 45699 NULL nohasharray
+bscnl_emit_45699 bscnl_emit 2-5-0 45699 &unix_dgram_sendmsg_45699
+dvb_ca_en50221_init_45718 dvb_ca_en50221_init 4 45718 NULL
+snd_cs46xx_io_read_45734 snd_cs46xx_io_read 5 45734 NULL
+rw_copy_check_uvector_45748 rw_copy_check_uvector 3 45748 NULL nohasharray
+v4l2_ctrl_new_std_45748 v4l2_ctrl_new_std 5 45748 &rw_copy_check_uvector_45748
+lkdtm_debugfs_read_45752 lkdtm_debugfs_read 3 45752 NULL
+nilfs_compat_ioctl_45769 nilfs_compat_ioctl 3 45769 NULL
+alloc_ts_config_45775 alloc_ts_config 1 45775 NULL
+raw_setsockopt_45800 raw_setsockopt 5 45800 NULL
+lbs_rdbbp_read_45805 lbs_rdbbp_read 3 45805 NULL
+pcpu_alloc_alloc_info_45813 pcpu_alloc_alloc_info 1-2 45813 NULL
+fm_v4l2_init_video_device_45821 fm_v4l2_init_video_device 2 45821 NULL
+memcg_update_cache_size_45828 memcg_update_cache_size 2 45828 NULL
+x509_process_extension_45854 x509_process_extension 5 45854 NULL
+isdn_write_45863 isdn_write 3 45863 NULL
+unpack_orig_pfns_45867 unpack_orig_pfns 0 45867 NULL
+get_rdac_req_45882 get_rdac_req 3 45882 NULL
+ocfs2_xattr_block_find_45891 ocfs2_xattr_block_find 0 45891 NULL
+wm_adsp_region_to_reg_45915 wm_adsp_region_to_reg 0-2 45915 NULL
+dbgfs_frame_45917 dbgfs_frame 3 45917 NULL
+nf_nat_ftp_fmt_cmd_45926 nf_nat_ftp_fmt_cmd 0 45926 NULL
+smp_scan_config_45934 smp_scan_config 1 45934 NULL
+alloc_mr_45935 alloc_mr 1 45935 NULL
+split_large_page_45941 split_large_page 2 45941 NULL
+rb_simple_read_45972 rb_simple_read 3 45972 NULL
+ezusb_writememory_45976 ezusb_writememory 4 45976 NULL
+ioat2_dca_count_dca_slots_45984 ioat2_dca_count_dca_slots 0 45984 NULL
+sierra_setup_urb_46029 sierra_setup_urb 5 46029 NULL
+get_free_entries_46030 get_free_entries 1 46030 NULL
+__access_remote_vm_46031 __access_remote_vm 0-5-3 46031 NULL
+snd_emu10k1x_ptr_read_46049 snd_emu10k1x_ptr_read 0 46049 NULL
+acpi_register_gsi_xen_hvm_46052 acpi_register_gsi_xen_hvm 2 46052 NULL
+line6_midibuf_bytes_used_46059 line6_midibuf_bytes_used 0 46059 NULL
+__ocfs2_move_extent_46060 __ocfs2_move_extent 5-6 46060 NULL nohasharray
+dma_tx_errors_read_46060 dma_tx_errors_read 3 46060 &__ocfs2_move_extent_46060
+slhc_toss_46066 slhc_toss 0 46066 NULL
+sel_commit_bools_write_46077 sel_commit_bools_write 3 46077 NULL
+vfio_config_do_rw_46091 vfio_config_do_rw 3 46091 NULL
+ata_host_alloc_46094 ata_host_alloc 2 46094 NULL
+arizona_set_irq_wake_46101 arizona_set_irq_wake 2 46101 NULL
+pkt_ctl_compat_ioctl_46110 pkt_ctl_compat_ioctl 3 46110 NULL
+memcg_update_array_size_46111 memcg_update_array_size 1 46111 NULL nohasharray
+il3945_ucode_general_stats_read_46111 il3945_ucode_general_stats_read 3 46111 &memcg_update_array_size_46111
+mlx4_ib_alloc_fast_reg_page_list_46119 mlx4_ib_alloc_fast_reg_page_list 2 46119 NULL
+paging32_walk_addr_nested_46121 paging32_walk_addr_nested 3 46121 NULL
+__netlink_change_ngroups_46156 __netlink_change_ngroups 2 46156 NULL
+twl_direction_out_46182 twl_direction_out 2 46182 NULL
+vxge_os_dma_malloc_46184 vxge_os_dma_malloc 2 46184 NULL
+add_conn_list_46197 add_conn_list 3 46197 NULL
+i2400m_op_msg_from_user_46213 i2400m_op_msg_from_user 4 46213 NULL
+tm6000_i2c_recv_regs_46215 tm6000_i2c_recv_regs 5 46215 NULL
+dsp_write_46218 dsp_write 2 46218 NULL
+mpi_read_raw_data_46248 mpi_read_raw_data 2 46248 NULL
+nf_nat_ftp_46265 nf_nat_ftp 6 46265 NULL
+ReadReg_46277 ReadReg 0 46277 NULL
+batadv_iv_ogm_queue_add_46319 batadv_iv_ogm_queue_add 3 46319 NULL
+__hwahc_dev_set_key_46328 __hwahc_dev_set_key 5 46328 NULL
+iwl_dbgfs_chain_noise_read_46355 iwl_dbgfs_chain_noise_read 3 46355 NULL
+smk_write_direct_46363 smk_write_direct 3 46363 NULL
+__iommu_calculate_agaw_46366 __iommu_calculate_agaw 2 46366 NULL
+ubi_dump_flash_46381 ubi_dump_flash 4 46381 NULL
+fuse_file_aio_write_46399 fuse_file_aio_write 4 46399 NULL
+crypto_ablkcipher_reqsize_46411 crypto_ablkcipher_reqsize 0 46411 NULL
+cp210x_set_config_46447 cp210x_set_config 4 46447 NULL
+filldir64_46469 filldir64 3 46469 NULL
+fill_in_write_vector_46498 fill_in_write_vector 0 46498 NULL
+pin_code_reply_46510 pin_code_reply 4 46510 NULL
+mthca_alloc_cq_buf_46512 mthca_alloc_cq_buf 3 46512 NULL
+kmsg_read_46514 kmsg_read 3 46514 NULL
+bdx_rxdb_create_46525 bdx_rxdb_create 1 46525 NULL
+nl80211_send_rx_assoc_46538 nl80211_send_rx_assoc 4 46538 NULL
+pm860x_irq_domain_map_46553 pm860x_irq_domain_map 2 46553 NULL
+mv_get_hc_count_46554 mv_get_hc_count 0 46554 NULL
+link_send_sections_long_46556 link_send_sections_long 4 46556 NULL
+irq_domain_associate_46564 irq_domain_associate 2 46564 NULL
+dn_current_mss_46574 dn_current_mss 0 46574 NULL
+serverworks_create_gatt_pages_46582 serverworks_create_gatt_pages 1 46582 NULL
+snd_compr_write_data_46592 snd_compr_write_data 3 46592 NULL
+il3945_stats_flag_46606 il3945_stats_flag 0-3 46606 NULL
+vscnprintf_46617 vscnprintf 0-2 46617 NULL
+__kfifo_out_r_46623 __kfifo_out_r 0-3 46623 NULL
+request_key_async_with_auxdata_46624 request_key_async_with_auxdata 4 46624 NULL
+vfs_getxattr_alloc_46649 vfs_getxattr_alloc 0 46649 NULL
+av7110_ipack_init_46655 av7110_ipack_init 2 46655 NULL
+alloc_data_packet_46698 alloc_data_packet 1 46698 NULL
+__ilog2_u32_46706 __ilog2_u32 0 46706 NULL
+erst_dbg_write_46715 erst_dbg_write 3 46715 NULL
+wl1271_rx_filter_alloc_field_46721 wl1271_rx_filter_alloc_field 5 46721 NULL
+prepare_copy_46725 prepare_copy 2 46725 NULL
+irq_domain_add_simple_46734 irq_domain_add_simple 2-3 46734 NULL
+set_memory_wc_46747 set_memory_wc 1 46747 NULL
+ext4_count_free_46754 ext4_count_free 2 46754 NULL nohasharray
+pte_pfn_46754 pte_pfn 0 46754 &ext4_count_free_46754
+hest_ghes_dev_register_46766 hest_ghes_dev_register 1 46766 NULL
+int_hw_irq_en_46776 int_hw_irq_en 3 46776 NULL
+regcache_lzo_sync_46777 regcache_lzo_sync 2 46777 NULL
+_sys_packet_req_46793 _sys_packet_req 4 46793 NULL
+_xfs_buf_get_pages_46811 _xfs_buf_get_pages 2 46811 NULL
+xfs_iroot_realloc_46826 xfs_iroot_realloc 2 46826 NULL
+shmem_pwrite_fast_46842 shmem_pwrite_fast 3 46842 NULL
+spi_async_46857 spi_async 0 46857 NULL
+vsnprintf_46863 vsnprintf 0 46863 NULL
+nvme_alloc_queue_46865 nvme_alloc_queue 3 46865 NULL
+sip_sprintf_addr_46872 sip_sprintf_addr 0 46872 NULL
+rvmalloc_46873 rvmalloc 1 46873 NULL
+qp_memcpy_from_queue_iov_46874 qp_memcpy_from_queue_iov 4-5 46874 NULL
+hpi_read_word_nolock_46881 hpi_read_word_nolock 0 46881 NULL
+stmpe_gpio_irq_unmap_46884 stmpe_gpio_irq_unmap 2 46884 NULL
+ixgbe_dbg_reg_ops_write_46895 ixgbe_dbg_reg_ops_write 3 46895 NULL
+sk_mem_pages_46896 sk_mem_pages 0-1 46896 NULL
+ol_dqblk_off_46904 ol_dqblk_off 3-2 46904 NULL
+ieee80211_if_fmt_power_mode_46906 ieee80211_if_fmt_power_mode 3 46906 NULL
+wlcore_alloc_hw_46917 wlcore_alloc_hw 1 46917 NULL
+fb_write_46924 fb_write 3 46924 NULL
+btmrvl_curpsmode_read_46939 btmrvl_curpsmode_read 3 46939 NULL
+kvm_register_read_46948 kvm_register_read 0 46948 NULL
+__sctp_setsockopt_connectx_46949 __sctp_setsockopt_connectx 3 46949 NULL
+qla4xxx_post_aen_work_46953 qla4xxx_post_aen_work 3 46953 NULL
+crypto_tfm_alg_alignmask_46971 crypto_tfm_alg_alignmask 0 46971 NULL
+mgmt_pending_add_46976 mgmt_pending_add 5 46976 NULL
+gfs2_xattr_system_set_46996 gfs2_xattr_system_set 4 46996 NULL nohasharray
+sel_write_bool_46996 sel_write_bool 3 46996 &gfs2_xattr_system_set_46996
+ttm_bo_io_47000 ttm_bo_io 5 47000 NULL
+blk_rq_map_kern_47004 blk_rq_map_kern 4 47004 NULL
+__map_single_47020 __map_single 3-4-7 47020 NULL
+cx231xx_init_bulk_47024 cx231xx_init_bulk 3-2 47024 NULL
+swiotlb_sync_single_47031 swiotlb_sync_single 2 47031 NULL
+set_dis_bypass_pfs_47038 set_dis_bypass_pfs 3 47038 NULL
+fs_path_len_47060 fs_path_len 0 47060 NULL
+ufs_new_fragments_47070 ufs_new_fragments 3-5-4 47070 NULL
+pipeline_dec_packet_in_read_47076 pipeline_dec_packet_in_read 3 47076 NULL
+scsi_deactivate_tcq_47086 scsi_deactivate_tcq 2 47086 NULL
+mousedev_read_47123 mousedev_read 3 47123 NULL
+ses_recv_diag_47143 ses_recv_diag 4 47143 NULL nohasharray
+acpi_ut_initialize_buffer_47143 acpi_ut_initialize_buffer 2 47143 &ses_recv_diag_47143
+persistent_ram_iomap_47156 persistent_ram_iomap 1-2 47156 NULL
+mxms_headerlen_47161 mxms_headerlen 0 47161 NULL
+rs_sta_dbgfs_rate_scale_data_read_47165 rs_sta_dbgfs_rate_scale_data_read 3 47165 NULL
+rts51x_ms_rw_47171 rts51x_ms_rw 3-4 47171 NULL
+svc_pool_map_alloc_arrays_47181 svc_pool_map_alloc_arrays 2 47181 NULL
+can_set_system_xattr_47182 can_set_system_xattr 4 47182 NULL
+ioremap_cache_47189 ioremap_cache 1-2 47189 NULL
+gnttab_set_map_op_47206 gnttab_set_map_op 2 47206 NULL
+l2headersize_47238 l2headersize 0 47238 NULL
+options_write_47243 options_write 3 47243 NULL
+portcntrs_1_read_47253 portcntrs_1_read 3 47253 NULL
+da9052_disable_irq_nosync_47260 da9052_disable_irq_nosync 2 47260 NULL
+ablkcipher_next_slow_47274 ablkcipher_next_slow 4-3 47274 NULL
+tty_audit_log_47280 tty_audit_log 8 47280 NULL
+gfs2_readpages_47285 gfs2_readpages 4 47285 NULL
+vsnprintf_47291 vsnprintf 0 47291 NULL
+tx_internal_desc_overflow_read_47300 tx_internal_desc_overflow_read 3 47300 NULL
+ieee80211_if_read_dot11MeshHoldingTimeout_47356 ieee80211_if_read_dot11MeshHoldingTimeout 3 47356 NULL
+avc_get_hash_stats_47359 avc_get_hash_stats 0 47359 NULL
+find_first_zero_bit_le_47369 find_first_zero_bit_le 2 47369 NULL
+__bio_map_kern_47379 __bio_map_kern 3 47379 NULL
+nv_rd32_47390 nv_rd32 0 47390 NULL nohasharray
+trace_options_core_read_47390 trace_options_core_read 3 47390 &nv_rd32_47390
+nametbl_list_47391 nametbl_list 2 47391 NULL
+dgrp_net_write_47392 dgrp_net_write 3 47392 NULL
+pfkey_sendmsg_47394 pfkey_sendmsg 4 47394 NULL
+gfn_to_pfn_prot_47398 gfn_to_pfn_prot 2 47398 NULL
+ocfs2_resv_end_47408 ocfs2_resv_end 0 47408 NULL
+crypto_ablkcipher_alignmask_47410 crypto_ablkcipher_alignmask 0 47410 NULL
+vzalloc_47421 vzalloc 1 47421 NULL
+posix_acl_from_disk_47445 posix_acl_from_disk 2 47445 NULL
+__load_mapping_47460 __load_mapping 2 47460 NULL
+wb_force_mapping_47485 wb_force_mapping 2 47485 NULL nohasharray
+newpart_47485 newpart 6 47485 &wb_force_mapping_47485
+core_sys_select_47494 core_sys_select 1 47494 NULL
+unlink_simple_47506 unlink_simple 3 47506 NULL
+ufs_inode_getblock_47512 ufs_inode_getblock 4 47512 NULL
+vscnprintf_47533 vscnprintf 0-2 47533 NULL nohasharray
+process_vm_rw_47533 process_vm_rw 3-5 47533 &vscnprintf_47533
+oz_events_read_47535 oz_events_read 3 47535 NULL
+ieee80211_if_fmt_min_discovery_timeout_47539 ieee80211_if_fmt_min_discovery_timeout 3 47539 NULL
+read_ldt_47570 read_ldt 2 47570 NULL
+pci_iomap_47575 pci_iomap 3 47575 NULL
+rpipe_get_idx_47579 rpipe_get_idx 2 47579 NULL
+ext4_kvzalloc_47605 ext4_kvzalloc 1 47605 NULL
+sctp_ssnmap_new_47608 sctp_ssnmap_new 1-2 47608 NULL
+uea_request_47613 uea_request 4 47613 NULL
+cache_read_pipefs_47615 cache_read_pipefs 3 47615 NULL
+twl4030_clear_set_47624 twl4030_clear_set 4 47624 NULL
+irq_set_chip_47638 irq_set_chip 1 47638 NULL
+__build_packet_message_47643 __build_packet_message 3-9 47643 NULL
+save_microcode_47717 save_microcode 3 47717 NULL
+bits_to_user_47733 bits_to_user 2-3 47733 NULL
+carl9170_debugfs_read_47738 carl9170_debugfs_read 3 47738 NULL
+ir_prepare_write_buffer_47747 ir_prepare_write_buffer 3 47747 NULL
+mvumi_alloc_mem_resource_47750 mvumi_alloc_mem_resource 3 47750 NULL
+ext3_find_near_47752 ext3_find_near 0 47752 NULL
+alloc_sched_domains_47756 alloc_sched_domains 1 47756 NULL
+i915_wedged_write_47771 i915_wedged_write 3 47771 NULL
+uwb_ie_dump_hex_47774 uwb_ie_dump_hex 4 47774 NULL
+error_error_numll_frame_cts_start_read_47781 error_error_numll_frame_cts_start_read 3 47781 NULL
+posix_acl_fix_xattr_from_user_47793 posix_acl_fix_xattr_from_user 2 47793 NULL
+stmmac_set_bfsize_47834 stmmac_set_bfsize 0 47834 NULL
+ubifs_unpack_nnode_47866 ubifs_unpack_nnode 0 47866 NULL
+vhci_read_47878 vhci_read 3 47878 NULL
+keyctl_instantiate_key_common_47889 keyctl_instantiate_key_common 4 47889 NULL
+load_mapping_47904 load_mapping 3 47904 NULL
+osd_req_read_sg_47905 osd_req_read_sg 5 47905 NULL
+comedi_write_47926 comedi_write 3 47926 NULL
+lp8788_irq_map_47964 lp8788_irq_map 2 47964 NULL
+iwl_dbgfs_ucode_tracing_read_47983 iwl_dbgfs_ucode_tracing_read 3 47983 NULL nohasharray
+mempool_resize_47983 mempool_resize 2 47983 &iwl_dbgfs_ucode_tracing_read_47983
+dbg_port_buf_47990 dbg_port_buf 2 47990 NULL
+ib_umad_write_47993 ib_umad_write 3 47993 NULL
+ffs_epfile_write_48014 ffs_epfile_write 3 48014 NULL
+bio_integrity_set_tag_48035 bio_integrity_set_tag 3 48035 NULL
+pppoe_sendmsg_48039 pppoe_sendmsg 4 48039 NULL
+wpan_phy_alloc_48056 wpan_phy_alloc 1 48056 NULL
+posix_acl_alloc_48063 posix_acl_alloc 1 48063 NULL
+palmas_bulk_write_48068 palmas_bulk_write 2-3-5 48068 NULL
+mmc_alloc_host_48097 mmc_alloc_host 1 48097 NULL
+skb_copy_datagram_const_iovec_48102 skb_copy_datagram_const_iovec 4-2-5 48102 NULL
+radio_isa_common_probe_48107 radio_isa_common_probe 3 48107 NULL
+vmw_framebuffer_surface_dirty_48132 vmw_framebuffer_surface_dirty 6 48132 NULL
+set_discoverable_48141 set_discoverable 4 48141 NULL
+dn_fib_count_nhs_48145 dn_fib_count_nhs 0 48145 NULL
+bitmap_onto_48152 bitmap_onto 4 48152 NULL
+isr_dma1_done_read_48159 isr_dma1_done_read 3 48159 NULL
+c4iw_id_table_alloc_48163 c4iw_id_table_alloc 3 48163 NULL
+ocfs2_find_next_zero_bit_unaligned_48170 ocfs2_find_next_zero_bit_unaligned 2-3 48170 NULL
+alloc_cc770dev_48186 alloc_cc770dev 1 48186 NULL
+init_ipath_48187 init_ipath 1 48187 NULL
+snd_seq_dump_var_event_48209 snd_seq_dump_var_event 0 48209 NULL
+is_block_in_journal_48223 is_block_in_journal 3 48223 NULL
+uv_blade_nr_possible_cpus_48226 uv_blade_nr_possible_cpus 0 48226 NULL
+nilfs_readpages_48229 nilfs_readpages 4 48229 NULL
+read_file_recv_48232 read_file_recv 3 48232 NULL
+unaccount_shadowed_48233 unaccount_shadowed 2 48233 NULL
+nfsctl_transaction_read_48250 nfsctl_transaction_read 3 48250 NULL
+cache_write_pipefs_48270 cache_write_pipefs 3 48270 NULL
+send_set_info_48288 send_set_info 7 48288 NULL
+set_disc_pwup_pfs_48300 set_disc_pwup_pfs 3 48300 NULL
+lpfc_idiag_extacc_read_48301 lpfc_idiag_extacc_read 3 48301 NULL
+timblogiw_read_48305 timblogiw_read 3 48305 NULL
+hash_setkey_48310 hash_setkey 3 48310 NULL
+__alloc_fd_48356 __alloc_fd 2 48356 NULL
+skb_add_data_48363 skb_add_data 3 48363 NULL
+tx_frag_init_called_read_48377 tx_frag_init_called_read 3 48377 NULL
+ixgbe_pci_sriov_enable_48410 ixgbe_pci_sriov_enable 2 48410 NULL
+lbs_debugfs_write_48413 lbs_debugfs_write 3 48413 NULL
+pwr_tx_without_ps_read_48423 pwr_tx_without_ps_read 3 48423 NULL
+nfs4_alloc_pages_48426 nfs4_alloc_pages 1 48426 NULL
+tun_recvmsg_48463 tun_recvmsg 4 48463 NULL
+r8712_usbctrl_vendorreq_48489 r8712_usbctrl_vendorreq 6 48489 NULL
+send_control_msg_48498 send_control_msg 6 48498 NULL
+mlx4_en_create_tx_ring_48501 mlx4_en_create_tx_ring 4 48501 NULL
+count_masked_bytes_48507 count_masked_bytes 0-1 48507 NULL
+diva_os_copy_to_user_48508 diva_os_copy_to_user 4 48508 NULL
+brcmf_sdio_trap_info_48510 brcmf_sdio_trap_info 4 48510 NULL
+phantom_get_free_48514 phantom_get_free 0 48514 NULL
+wiimote_hid_send_48528 wiimote_hid_send 3 48528 NULL
+ext3_splice_branch_48531 ext3_splice_branch 6 48531 NULL
+named_distribute_48544 named_distribute 4 48544 NULL
+raid10_size_48571 raid10_size 0-2-3 48571 NULL
+ufs_dtogd_48616 ufs_dtogd 0-2 48616 NULL
+do_ip_vs_set_ctl_48641 do_ip_vs_set_ctl 4 48641 NULL
+mtd_read_48655 mtd_read 0 48655 NULL
+aes_encrypt_packets_read_48666 aes_encrypt_packets_read 3 48666 NULL
+sm501_create_subdev_48668 sm501_create_subdev 3-4 48668 NULL nohasharray
+sys_setgroups_48668 sys_setgroups 1 48668 &sm501_create_subdev_48668
+altera_drscan_48698 altera_drscan 2 48698 NULL
+kvm_set_irq_routing_48704 kvm_set_irq_routing 3 48704 NULL
+ath6kl_usb_bmi_read_48745 ath6kl_usb_bmi_read 3 48745 NULL
+ath6kl_regwrite_read_48747 ath6kl_regwrite_read 3 48747 NULL
+l2cap_segment_sdu_48772 l2cap_segment_sdu 4 48772 NULL
+lua_sysfs_write_48797 lua_sysfs_write 6 48797 NULL
+il3945_sta_dbgfs_stats_table_read_48802 il3945_sta_dbgfs_stats_table_read 3 48802 NULL
+twa_change_queue_depth_48808 twa_change_queue_depth 2 48808 NULL
+atomic_counters_read_48827 atomic_counters_read 3 48827 NULL
+efi_memory_uc_48828 efi_memory_uc 1 48828 NULL
+azx_get_position_48841 azx_get_position 0 48841 NULL
+vc_do_resize_48842 vc_do_resize 3-4 48842 NULL
+viafb_dvp1_proc_write_48864 viafb_dvp1_proc_write 3 48864 NULL
+__ffs_ep0_read_events_48868 __ffs_ep0_read_events 3 48868 NULL
+sys_setgroups16_48882 sys_setgroups16 1 48882 NULL
+ext2_alloc_branch_48889 ext2_alloc_branch 4 48889 NULL
+crypto_cipher_ctxsize_48890 crypto_cipher_ctxsize 0 48890 NULL
+xdi_copy_to_user_48900 xdi_copy_to_user 4 48900 NULL
+msg_hdr_sz_48908 msg_hdr_sz 0 48908 NULL
+gdth_isa_probe_one_48925 gdth_isa_probe_one 1 48925 NULL
+sep_crypto_dma_48937 sep_crypto_dma 0 48937 NULL
+event_heart_beat_read_48961 event_heart_beat_read 3 48961 NULL
+nand_ecc_test_run_48966 nand_ecc_test_run 1 48966 NULL
+vmci_handle_arr_create_48971 vmci_handle_arr_create 1 48971 NULL
+batadv_orig_hash_del_if_48972 batadv_orig_hash_del_if 2 48972 NULL
+_alloc_set_attr_list_48991 _alloc_set_attr_list 4 48991 NULL
+rds_rm_size_48996 rds_rm_size 0-2 48996 NULL
+sel_write_enforce_48998 sel_write_enforce 3 48998 NULL
+transient_status_49027 transient_status 4 49027 NULL
+ipath_reg_user_mr_49038 ipath_reg_user_mr 2-3 49038 NULL
+setup_msi_irq_49052 setup_msi_irq 3-4 49052 NULL
+ubi_read_49061 ubi_read 0 49061 NULL
+scsi_register_49094 scsi_register 2 49094 NULL
+paging64_walk_addr_nested_49100 paging64_walk_addr_nested 3 49100 NULL
+compat_do_readv_writev_49102 compat_do_readv_writev 4 49102 NULL
+xfrm_replay_state_esn_len_49119 xfrm_replay_state_esn_len 0 49119 NULL
+pt_read_49136 pt_read 3 49136 NULL
+tipc_multicast_49144 tipc_multicast 5 49144 NULL
+atyfb_setup_generic_49151 atyfb_setup_generic 3 49151 NULL
+ipwireless_tty_received_49154 ipwireless_tty_received 3 49154 NULL
+f2fs_acl_count_49155 f2fs_acl_count 0-1 49155 NULL
+ipw_queue_tx_init_49161 ipw_queue_tx_init 3 49161 NULL
+ext4_free_clusters_after_init_49174 ext4_free_clusters_after_init 2 49174 NULL
+dvb_dvr_ioctl_49182 dvb_dvr_ioctl 2 49182 NULL
+iwl_dbgfs_ucode_general_stats_read_49199 iwl_dbgfs_ucode_general_stats_read 3 49199 NULL
+il4965_rs_sta_dbgfs_stats_table_read_49206 il4965_rs_sta_dbgfs_stats_table_read 3 49206 NULL
+do_jffs2_getxattr_49210 do_jffs2_getxattr 0 49210 NULL
+nouveau_therm_create__49228 nouveau_therm_create_ 4 49228 NULL
+nouveau_i2c_port_create__49237 nouveau_i2c_port_create_ 6 49237 NULL
+hugetlb_cgroup_read_49259 hugetlb_cgroup_read 5 49259 NULL
+ieee80211_if_read_rssi_threshold_49260 ieee80211_if_read_rssi_threshold 3 49260 NULL
+osd_req_add_get_attr_list_49278 osd_req_add_get_attr_list 3 49278 NULL
+rx_filter_beacon_filter_read_49279 rx_filter_beacon_filter_read 3 49279 NULL
+uio_read_49300 uio_read 3 49300 NULL
+ocfs2_resmap_find_free_bits_49301 ocfs2_resmap_find_free_bits 3 49301 NULL
+fwtty_port_handler_49327 fwtty_port_handler 9 49327 NULL
+srpt_alloc_ioctx_ring_49330 srpt_alloc_ioctx_ring 2-3-4 49330 NULL
+cfpkt_setlen_49343 cfpkt_setlen 2 49343 NULL
+joydev_ioctl_common_49359 joydev_ioctl_common 2 49359 NULL
+ocfs2_remove_btree_range_49370 ocfs2_remove_btree_range 4-5-3 49370 NULL
+px_raw_event_49371 px_raw_event 4 49371 NULL
+iscsi_alloc_session_49390 iscsi_alloc_session 3 49390 NULL
+applesmc_create_nodes_49392 applesmc_create_nodes 2 49392 NULL
+rx_streaming_always_read_49401 rx_streaming_always_read 3 49401 NULL
+tnode_alloc_49407 tnode_alloc 1 49407 NULL
+samples_to_bytes_49426 samples_to_bytes 0-2 49426 NULL
+md_domain_init_49432 md_domain_init 2 49432 NULL
+compat_do_msg_fill_49440 compat_do_msg_fill 3 49440 NULL
+agp_3_5_isochronous_node_enable_49465 agp_3_5_isochronous_node_enable 3 49465 NULL
+xfs_iformat_local_49472 xfs_iformat_local 4 49472 NULL
+savu_sysfs_read_49473 savu_sysfs_read 6 49473 NULL
+isr_decrypt_done_read_49490 isr_decrypt_done_read 3 49490 NULL
+emulator_write_phys_49520 emulator_write_phys 2-4 49520 NULL
+acpi_os_ioremap_49523 acpi_os_ioremap 1-2 49523 NULL
+smk_write_access_49561 smk_write_access 3 49561 NULL
+ntfs_malloc_nofs_49572 ntfs_malloc_nofs 1 49572 NULL
+alloc_chunk_49575 alloc_chunk 1 49575 NULL
+sctp_setsockopt_default_send_param_49578 sctp_setsockopt_default_send_param 3 49578 NULL
+isr_wakeups_read_49607 isr_wakeups_read 3 49607 NULL
+btrfs_mksubvol_49616 btrfs_mksubvol 3 49616 NULL
+heap_init_49617 heap_init 2 49617 NULL
+smk_write_doi_49621 smk_write_doi 3 49621 NULL
+btrfsic_cmp_log_and_dev_bytenr_49628 btrfsic_cmp_log_and_dev_bytenr 2 49628 NULL
+aa_simple_write_to_buffer_49683 aa_simple_write_to_buffer 3-4 49683 NULL
+sys_gethostname_49698 sys_gethostname 2 49698 NULL
+cx2341x_ctrl_new_menu_49700 cx2341x_ctrl_new_menu 3 49700 NULL
+dm_thin_insert_block_49720 dm_thin_insert_block 2-3 49720 NULL
+sep_create_dcb_dmatables_context_kernel_49728 sep_create_dcb_dmatables_context_kernel 6 49728 NULL
+sys_fsetxattr_49736 sys_fsetxattr 4 49736 NULL
+check_frame_49741 check_frame 0 49741 NULL
+zd_usb_iowrite16v_49744 zd_usb_iowrite16v 3 49744 NULL
+btrfs_chunk_num_stripes_49751 btrfs_chunk_num_stripes 0 49751 NULL
+fuse_wr_pages_49753 fuse_wr_pages 0-1-2 49753 NULL
+key_conf_keylen_read_49758 key_conf_keylen_read 3 49758 NULL
+fuse_conn_waiting_read_49762 fuse_conn_waiting_read 3 49762 NULL
+isku_sysfs_write_49767 isku_sysfs_write 6 49767 NULL
+ceph_osdc_readpages_49789 ceph_osdc_readpages 10-4 49789 NULL
+nfs4_acl_new_49806 nfs4_acl_new 1 49806 NULL
+arch_gnttab_map_status_49812 arch_gnttab_map_status 3 49812 NULL
+ntfs_copy_from_user_iovec_49829 ntfs_copy_from_user_iovec 3-6-0 49829 NULL
+add_uuid_49831 add_uuid 4 49831 NULL
+ath6kl_fwlog_block_read_49836 ath6kl_fwlog_block_read 3 49836 NULL
+twl4030_write_49846 twl4030_write 2 49846 NULL
+scsi_dispatch_cmd_entry_49848 scsi_dispatch_cmd_entry 3 49848 NULL
+timeradd_entry_49850 timeradd_entry 3 49850 NULL
+sctp_setsockopt_bindx_49870 sctp_setsockopt_bindx 3 49870 NULL
+ceph_get_caps_49890 ceph_get_caps 0 49890 NULL
+__cow_file_range_49901 __cow_file_range 5 49901 NULL
+__copy_from_user_inatomic_nocache_49921 __copy_from_user_inatomic_nocache 3 49921 NULL
+batadv_tt_realloc_packet_buff_49960 batadv_tt_realloc_packet_buff 4 49960 NULL
+b43legacy_pio_read_49978 b43legacy_pio_read 0 49978 NULL
+ieee80211_if_fmt_dtim_count_49987 ieee80211_if_fmt_dtim_count 3 49987 NULL
+l2cap_chan_send_49995 l2cap_chan_send 3 49995 NULL
+__module_alloc_50004 __module_alloc 1 50004 NULL
+dn_mss_from_pmtu_50011 dn_mss_from_pmtu 0-2 50011 NULL
+ptrace_readdata_50020 ptrace_readdata 2-4 50020 NULL
+isdn_read_50021 isdn_read 3 50021 NULL
+qp_alloc_queue_50028 qp_alloc_queue 1 50028 NULL
+alloc_ebda_hpc_50046 alloc_ebda_hpc 1-2 50046 NULL
+vmw_surface_destroy_size_50072 vmw_surface_destroy_size 0 50072 NULL
+arch_setup_ht_irq_50073 arch_setup_ht_irq 1 50073 NULL
+dev_set_alias_50084 dev_set_alias 3 50084 NULL
+pcpu_get_vm_areas_50085 pcpu_get_vm_areas 3 50085 NULL
+sock_setsockopt_50088 sock_setsockopt 5 50088 NULL
+altera_swap_dr_50090 altera_swap_dr 2 50090 NULL
+read_file_slot_50111 read_file_slot 3 50111 NULL
+copy_items_50140 copy_items 6 50140 NULL
+tx_frag_need_fragmentation_read_50153 tx_frag_need_fragmentation_read 3 50153 NULL
+set_cmd_header_50155 set_cmd_header 0 50155 NULL
+reiserfs_bmap_count_50160 reiserfs_bmap_count 0 50160 NULL
+aac_nark_ioremap_50163 aac_nark_ioremap 2 50163 NULL nohasharray
+kmalloc_node_50163 kmalloc_node 1 50163 &aac_nark_ioremap_50163
+rx_filter_ibss_filter_read_50167 rx_filter_ibss_filter_read 3 50167 NULL
+odev_update_50169 odev_update 2 50169 NULL
+ieee80211_if_fmt_dot11MeshHWMPRannInterval_50172 ieee80211_if_fmt_dot11MeshHWMPRannInterval 3 50172 NULL nohasharray
+ubi_resize_volume_50172 ubi_resize_volume 2 50172 &ieee80211_if_fmt_dot11MeshHWMPRannInterval_50172
+ib_send_cm_drep_50186 ib_send_cm_drep 3 50186 NULL
+cfg80211_roamed_bss_50198 cfg80211_roamed_bss 4-6 50198 NULL
+rx_rx_timeout_wa_read_50204 rx_rx_timeout_wa_read 3 50204 NULL
+ieee80211_skb_resize_50211 ieee80211_skb_resize 3 50211 NULL
+mon_bin_compat_ioctl_50234 mon_bin_compat_ioctl 3 50234 NULL
+sg_kmalloc_50240 sg_kmalloc 1 50240 NULL
+afs_extract_data_50261 afs_extract_data 5 50261 NULL
+rxrpc_setsockopt_50286 rxrpc_setsockopt 5 50286 NULL
+soc_codec_reg_show_50302 soc_codec_reg_show 0 50302 NULL
+soc_camera_read_50319 soc_camera_read 3 50319 NULL
+do_launder_page_50329 do_launder_page 0 50329 NULL
+nouveau_engine_create__50331 nouveau_engine_create_ 7 50331 NULL
+lpfc_idiag_pcicfg_read_50334 lpfc_idiag_pcicfg_read 3 50334 NULL
+ocfs2_block_to_cluster_group_50337 ocfs2_block_to_cluster_group 2 50337 NULL nohasharray
+snd_pcm_lib_writev_50337 snd_pcm_lib_writev 0-3 50337 &ocfs2_block_to_cluster_group_50337
+roccat_common2_send_with_status_50343 roccat_common2_send_with_status 4 50343 NULL
+tpm_read_50344 tpm_read 3 50344 NULL
+kvm_arch_create_memslot_50354 kvm_arch_create_memslot 2 50354 NULL
+isdn_ppp_read_50356 isdn_ppp_read 4 50356 NULL
+unpack_u16_chunk_50357 unpack_u16_chunk 0 50357 NULL
+xfrm_send_migrate_50365 xfrm_send_migrate 5 50365 NULL
+roccat_common2_receive_50369 roccat_common2_receive 4 50369 NULL
+sl_alloc_bufs_50380 sl_alloc_bufs 2 50380 NULL
+l2tp_ip_sendmsg_50411 l2tp_ip_sendmsg 4 50411 NULL
+iscsi_create_conn_50425 iscsi_create_conn 2 50425 NULL
+validate_acl_mac_addrs_50429 validate_acl_mac_addrs 0 50429 NULL
+btrfs_error_discard_extent_50444 btrfs_error_discard_extent 2 50444 NULL
+pgctrl_write_50453 pgctrl_write 3 50453 NULL
+force_mapping_50464 force_mapping 2 50464 NULL
+cdrom_read_cdda_50478 cdrom_read_cdda 4 50478 NULL
+mei_io_cb_alloc_req_buf_50493 mei_io_cb_alloc_req_buf 2 50493 NULL
+pwr_rcvd_awake_beacons_read_50505 pwr_rcvd_awake_beacons_read 3 50505 NULL
+fwnet_receive_packet_50537 fwnet_receive_packet 9 50537 NULL
+ath6kl_set_ap_probe_resp_ies_50539 ath6kl_set_ap_probe_resp_ies 3 50539 NULL
+hme_read_desc32_50574 hme_read_desc32 0 50574 NULL
+fat_readpages_50582 fat_readpages 4 50582 NULL
+iwl_dbgfs_missed_beacon_read_50584 iwl_dbgfs_missed_beacon_read 3 50584 NULL
+build_inv_iommu_pages_50589 build_inv_iommu_pages 2-3 50589 NULL
+rx_rx_checksum_result_read_50617 rx_rx_checksum_result_read 3 50617 NULL
+__ffs_50625 __ffs 0 50625 NULL
+simple_transaction_get_50633 simple_transaction_get 3 50633 NULL
+ath6kl_tm_rx_event_50664 ath6kl_tm_rx_event 3 50664 NULL nohasharray
+sys_readv_50664 sys_readv 3 50664 &ath6kl_tm_rx_event_50664
+bnad_debugfs_read_50665 bnad_debugfs_read 3 50665 NULL
+ext2_try_to_allocate_with_rsv_50669 ext2_try_to_allocate_with_rsv 4-2 50669 NULL
+btmrvl_psstate_read_50683 btmrvl_psstate_read 3 50683 NULL
+swiotlb_free_coherent_50690 swiotlb_free_coherent 4 50690 NULL
+paging32_gva_to_gpa_50696 paging32_gva_to_gpa 2 50696 NULL
+xfs_growfs_get_hdr_buf_50697 xfs_growfs_get_hdr_buf 3 50697 NULL
+blk_check_plugged_50736 blk_check_plugged 3 50736 NULL
+__ext3_get_inode_loc_50744 __ext3_get_inode_loc 0 50744 NULL
+skb_padto_50759 skb_padto 2 50759 NULL
+ocfs2_xattr_block_get_50773 ocfs2_xattr_block_get 0 50773 NULL
+tm6000_read_write_usb_50774 tm6000_read_write_usb 7 50774 NULL
+bio_alloc_map_data_50782 bio_alloc_map_data 1-2 50782 NULL
+tpm_write_50798 tpm_write 3 50798 NULL
+write_flush_50803 write_flush 3 50803 NULL
+dvb_play_50814 dvb_play 3 50814 NULL
+dpcm_show_state_50827 dpcm_show_state 0 50827 NULL
+acpi_ev_install_gpe_block_50829 acpi_ev_install_gpe_block 2 50829 NULL
+SetArea_50835 SetArea 4 50835 NULL nohasharray
+create_mem_extents_50835 create_mem_extents 0 50835 &SetArea_50835
+videobuf_dma_init_user_50839 videobuf_dma_init_user 3 50839 NULL
+self_check_write_50856 self_check_write 5 50856 NULL
+carl9170_debugfs_write_50857 carl9170_debugfs_write 3 50857 NULL
+netlbl_secattr_catmap_walk_rng_50894 netlbl_secattr_catmap_walk_rng 0-2 50894 NULL
+osd_req_write_sg_50908 osd_req_write_sg 5 50908 NULL
+xfs_iext_remove_50909 xfs_iext_remove 3 50909 NULL
+blk_rq_cur_sectors_50910 blk_rq_cur_sectors 0 50910 NULL
+hash_recvmsg_50924 hash_recvmsg 4 50924 NULL
+chd_dec_fetch_cdata_50926 chd_dec_fetch_cdata 3 50926 NULL
+ocfs2_add_refcount_flag_50952 ocfs2_add_refcount_flag 6 50952 NULL
+iwl_statistics_flag_50981 iwl_statistics_flag 0-3 50981 NULL
+timeout_write_50991 timeout_write 3 50991 NULL
+wm831x_irq_map_50995 wm831x_irq_map 2 50995 NULL
+proc_write_51003 proc_write 3 51003 NULL
+snd_pcm_default_page_ops_51021 snd_pcm_default_page_ops 2 51021 NULL
+lbs_dev_info_51023 lbs_dev_info 3 51023 NULL
+ntfs_attr_find_51028 ntfs_attr_find 0 51028 NULL nohasharray
+fuse_conn_congestion_threshold_read_51028 fuse_conn_congestion_threshold_read 3 51028 &ntfs_attr_find_51028
+BcmGetSectionValEndOffset_51039 BcmGetSectionValEndOffset 0 51039 NULL
+dump_midi_51040 dump_midi 3 51040 NULL
+srpt_alloc_ioctx_51042 srpt_alloc_ioctx 2-3 51042 NULL
+do_arpt_set_ctl_51053 do_arpt_set_ctl 4 51053 NULL
+wusb_prf_64_51065 wusb_prf_64 7 51065 NULL
+jbd2_journal_init_revoke_51088 jbd2_journal_init_revoke 2 51088 NULL
+__ocfs2_find_path_51096 __ocfs2_find_path 0 51096 NULL
+ti_recv_51110 ti_recv 3 51110 NULL
+dgrp_net_read_51113 dgrp_net_read 3 51113 NULL
+nfs_map_name_to_uid_51132 nfs_map_name_to_uid 3 51132 NULL
+alloc_rtllib_51136 alloc_rtllib 1 51136 NULL
+simple_xattr_set_51140 simple_xattr_set 4 51140 NULL
+set_dirty_51144 set_dirty 3 51144 NULL
+xfs_trans_get_efd_51148 xfs_trans_get_efd 3 51148 NULL
+compat_sys_pwritev64_51151 compat_sys_pwritev64 3 51151 NULL
+blk_bio_map_sg_51213 blk_bio_map_sg 0 51213 NULL
+nf_ct_ext_create_51232 nf_ct_ext_create 3 51232 NULL
+snd_pcm_write_51235 snd_pcm_write 3 51235 NULL
+tipc_send_51238 tipc_send 4 51238 NULL
+drm_property_create_51239 drm_property_create 4 51239 NULL
+st_read_51251 st_read 3 51251 NULL
+compat_dccp_setsockopt_51263 compat_dccp_setsockopt 5 51263 NULL
+dvb_audio_write_51275 dvb_audio_write 3 51275 NULL
+ipwireless_network_packet_received_51277 ipwireless_network_packet_received 4 51277 NULL
+zone_reclaimable_pages_51283 zone_reclaimable_pages 0 51283 NULL
+pvr2_std_id_to_str_51288 pvr2_std_id_to_str 2 51288 NULL
+bnad_debugfs_read_regrd_51308 bnad_debugfs_read_regrd 3 51308 NULL
+get_cell_51316 get_cell 2 51316 NULL
+alloc_hippi_dev_51320 alloc_hippi_dev 1 51320 NULL
+ext2_xattr_get_51327 ext2_xattr_get 0 51327 NULL
+alloc_smp_req_51337 alloc_smp_req 1 51337 NULL nohasharray
+compat_arch_ptrace_51337 compat_arch_ptrace 3-4 51337 &alloc_smp_req_51337
+ipw_get_event_log_len_51341 ipw_get_event_log_len 0 51341 NULL
+ieee80211_if_fmt_estab_plinks_51370 ieee80211_if_fmt_estab_plinks 3 51370 NULL
+radeon_kms_compat_ioctl_51371 radeon_kms_compat_ioctl 2 51371 NULL
+ieee80211_wx_set_gen_ie_51399 ieee80211_wx_set_gen_ie 3 51399 NULL
+ceph_sync_read_51410 ceph_sync_read 3 51410 NULL
+x86_swiotlb_free_coherent_51421 x86_swiotlb_free_coherent 4 51421 NULL
+blk_register_region_51424 blk_register_region 1-2 51424 NULL
+mwifiex_rdeeprom_read_51429 mwifiex_rdeeprom_read 3 51429 NULL
+ieee80211_if_read_dot11MeshHWMPRootMode_51441 ieee80211_if_read_dot11MeshHWMPRootMode 3 51441 NULL
+print_devstats_dot11ACKFailureCount_51443 print_devstats_dot11ACKFailureCount 3 51443 NULL
+____alloc_ei_netdev_51475 ____alloc_ei_netdev 1 51475 NULL
+xfs_buf_get_uncached_51477 xfs_buf_get_uncached 2 51477 NULL
+vaddr_51480 vaddr 0 51480 NULL
+__cpa_process_fault_51502 __cpa_process_fault 2 51502 NULL
+ieee80211_if_write_uapsd_queues_51526 ieee80211_if_write_uapsd_queues 3 51526 NULL
+load_pdptrs_51541 load_pdptrs 3 51541 NULL
+__alloc_eip_netdev_51549 __alloc_eip_netdev 1 51549 NULL
+icmp_manip_pkt_51560 icmp_manip_pkt 4 51560 NULL
+ixgb_get_eeprom_len_51586 ixgb_get_eeprom_len 0 51586 NULL
+aac_convert_sgraw2_51598 aac_convert_sgraw2 4 51598 NULL
+raw_ioctl_51607 raw_ioctl 3 51607 NULL
+table_size_to_number_of_entries_51613 table_size_to_number_of_entries 0-1 51613 NULL
+gnttab_end_foreign_access_51617 gnttab_end_foreign_access 3 51617 NULL
+dns_resolve_server_name_to_ip_51632 dns_resolve_server_name_to_ip 0 51632 NULL
+sctp_auth_create_key_51641 sctp_auth_create_key 1 51641 NULL
+iscsi_create_session_51647 iscsi_create_session 3 51647 NULL
+get_new_cssid_51665 get_new_cssid 2 51665 NULL
+ps_upsd_utilization_read_51669 ps_upsd_utilization_read 3 51669 NULL
+sctp_setsockopt_associnfo_51684 sctp_setsockopt_associnfo 3 51684 NULL
+sfi_sysfs_install_table_51688 sfi_sysfs_install_table 1 51688 NULL
+host_mapping_level_51696 host_mapping_level 2 51696 NULL
+sel_write_access_51704 sel_write_access 3 51704 NULL
+tty_cdev_add_51714 tty_cdev_add 2-4 51714 NULL
+v9fs_alloc_rdir_buf_51716 v9fs_alloc_rdir_buf 2 51716 NULL
+drm_compat_ioctl_51717 drm_compat_ioctl 2 51717 NULL
+sg_read_oxfer_51724 sg_read_oxfer 3 51724 NULL
+hid_parse_report_51737 hid_parse_report 3 51737 NULL
+get_user_pages_fast_51751 get_user_pages_fast 0-1-2 51751 NULL
+ifx_spi_insert_flip_string_51752 ifx_spi_insert_flip_string 3 51752 NULL
+if_write_51756 if_write 3 51756 NULL
+ioremap_prot_51764 ioremap_prot 1-2 51764 NULL
+iio_buffer_add_channel_sysfs_51766 iio_buffer_add_channel_sysfs 0 51766 NULL
+qib_alloc_devdata_51819 qib_alloc_devdata 2 51819 NULL
+buffer_from_user_51826 buffer_from_user 3 51826 NULL
+ioread32_51847 ioread32 0 51847 NULL nohasharray
+read_file_tgt_tx_stats_51847 read_file_tgt_tx_stats 3 51847 &ioread32_51847
+do_readv_writev_51849 do_readv_writev 4 51849 NULL
+pointer_size_read_51863 pointer_size_read 3 51863 NULL
+mlx4_alloc_db_from_pgdir_51865 mlx4_alloc_db_from_pgdir 3 51865 NULL
+get_indirect_ea_51869 get_indirect_ea 4 51869 NULL
+user_read_51881 user_read 3 51881 NULL
+memblock_alloc_51884 memblock_alloc 1-2 51884 NULL
+dbAdjCtl_51888 dbAdjCtl 0 51888 NULL
+virt_to_phys_51896 virt_to_phys 0 51896 NULL
+wmi_set_ie_51919 wmi_set_ie 3 51919 NULL
+dbg_status_buf_51930 dbg_status_buf 2 51930 NULL
+__tcp_mtu_to_mss_51938 __tcp_mtu_to_mss 0-2 51938 NULL
+xfrm_alg_len_51940 xfrm_alg_len 0 51940 NULL
+irq_dispose_mapping_51941 irq_dispose_mapping 1 51941 NULL
+scsi_get_vpd_page_51951 scsi_get_vpd_page 4 51951 NULL
+arizona_free_irq_51969 arizona_free_irq 2 51969 NULL nohasharray
+snd_mask_min_51969 snd_mask_min 0 51969 &arizona_free_irq_51969
+ath6kl_sdio_alloc_prep_scat_req_51986 ath6kl_sdio_alloc_prep_scat_req 2 51986 NULL
+skb_copy_datagram_from_iovec_52014 skb_copy_datagram_from_iovec 4-2-5 52014 NULL
+rdmalt_52022 rdmalt 0 52022 NULL
+vxge_rx_alloc_52024 vxge_rx_alloc 3 52024 NULL
+override_release_52032 override_release 2 52032 NULL
+end_port_52042 end_port 0 52042 NULL
+dma_rx_errors_read_52045 dma_rx_errors_read 3 52045 NULL
+msnd_fifo_write_52052 msnd_fifo_write 0-3 52052 NULL
+dvb_ringbuffer_avail_52057 dvb_ringbuffer_avail 0 52057 NULL
+__fuse_request_alloc_52060 __fuse_request_alloc 1 52060 NULL
+isofs_readpages_52067 isofs_readpages 4 52067 NULL
+nsm_get_handle_52089 nsm_get_handle 4 52089 NULL
+o2net_debug_read_52105 o2net_debug_read 3 52105 NULL
+retry_count_read_52129 retry_count_read 3 52129 NULL
+zram_meta_alloc_52140 zram_meta_alloc 1 52140 NULL
+hysdn_conf_write_52145 hysdn_conf_write 3 52145 NULL nohasharray
+ext2_alloc_blocks_52145 ext2_alloc_blocks 2 52145 &hysdn_conf_write_52145
+htable_size_52148 htable_size 0-1 52148 NULL
+__le16_to_cpup_52155 __le16_to_cpup 0 52155 NULL nohasharray
+smk_write_load2_52155 smk_write_load2 3 52155 &__le16_to_cpup_52155
+alix_present_52165 alix_present 1 52165 NULL
+ieee80211_if_read_dot11MeshRetryTimeout_52168 ieee80211_if_read_dot11MeshRetryTimeout 3 52168 NULL
+mga_compat_ioctl_52170 mga_compat_ioctl 2 52170 NULL
+print_prefix_52176 print_prefix 0 52176 NULL
+proc_pid_readlink_52186 proc_pid_readlink 3 52186 NULL
+vmci_qp_broker_alloc_52216 vmci_qp_broker_alloc 5-6 52216 NULL
+do_dmabuf_dirty_ldu_52241 do_dmabuf_dirty_ldu 6 52241 NULL
+fuse_request_alloc_52243 fuse_request_alloc 1 52243 NULL
+pm80x_request_irq_52250 pm80x_request_irq 2 52250 NULL
+mdiobus_alloc_size_52259 mdiobus_alloc_size 1 52259 NULL
+shrink_slab_52261 shrink_slab 2-3 52261 NULL
+hva_to_pfn_slow_52262 hva_to_pfn_slow 1 52262 NULL
+sisusbcon_do_font_op_52271 sisusbcon_do_font_op 9 52271 NULL
+ath6kl_wmi_get_new_buf_52304 ath6kl_wmi_get_new_buf 1 52304 NULL
+read_file_reset_52310 read_file_reset 3 52310 NULL
+request_asymmetric_key_52317 request_asymmetric_key 2-4 52317 NULL
+hwflags_read_52318 hwflags_read 3 52318 NULL
+ntfs_rl_split_52328 ntfs_rl_split 2-4 52328 NULL
+test_unaligned_bulk_52333 test_unaligned_bulk 3 52333 NULL
+bytes_to_frames_52362 bytes_to_frames 0-2 52362 NULL
+copy_entries_to_user_52367 copy_entries_to_user 1 52367 NULL
+mq_emit_config_values_52378 mq_emit_config_values 3 52378 NULL
+isdn_writebuf_stub_52383 isdn_writebuf_stub 4 52383 NULL
+jfs_setxattr_52389 jfs_setxattr 4 52389 NULL
+aer_inject_write_52399 aer_inject_write 3 52399 NULL
+aac_rx_ioremap_52410 aac_rx_ioremap 2 52410 NULL
+cgroup_file_write_52417 cgroup_file_write 3 52417 NULL
+line6_midibuf_init_52425 line6_midibuf_init 2 52425 NULL
+delay_status_52431 delay_status 5 52431 NULL
+ieee80211_if_fmt_num_sta_ps_52438 ieee80211_if_fmt_num_sta_ps 3 52438 NULL
+nl80211_send_mgmt_tx_status_52445 nl80211_send_mgmt_tx_status 5 52445 NULL
+ieee80211_alloc_txb_52477 ieee80211_alloc_txb 1-2 52477 NULL
+ocfs2_extend_no_holes_52483 ocfs2_extend_no_holes 3-4 52483 NULL
+fd_do_rw_52495 fd_do_rw 3 52495 NULL nohasharray
+skb_cow_head_52495 skb_cow_head 2 52495 &fd_do_rw_52495
+qib_user_sdma_pin_pages_52498 qib_user_sdma_pin_pages 3-5 52498 NULL
+int_tasklet_entry_52500 int_tasklet_entry 3 52500 NULL
+pm_qos_power_write_52513 pm_qos_power_write 3 52513 NULL
+dup_variable_bug_52525 dup_variable_bug 3 52525 NULL
+from_oblock_52546 from_oblock 0-1 52546 NULL
+dccpprobe_read_52549 dccpprobe_read 3 52549 NULL
+ocfs2_make_right_split_rec_52562 ocfs2_make_right_split_rec 3 52562 NULL
+emit_code_52583 emit_code 0-3 52583 NULL
+tps80031_writes_52638 tps80031_writes 3-4 52638 NULL
+brcmf_sdio_assert_info_52653 brcmf_sdio_assert_info 4 52653 NULL
+nvd0_disp_pioc_create__52693 nvd0_disp_pioc_create_ 5 52693 NULL
+nouveau_client_create__52715 nouveau_client_create_ 5 52715 NULL
+cx25840_ir_rx_read_52724 cx25840_ir_rx_read 3 52724 NULL
+blkcipher_next_slow_52733 blkcipher_next_slow 3-4 52733 NULL
+relay_alloc_page_array_52735 relay_alloc_page_array 1 52735 NULL
+carl9170_debugfs_vif_dump_read_52755 carl9170_debugfs_vif_dump_read 3 52755 NULL
+copy_ctr_args_52761 copy_ctr_args 2 52761 NULL
+pwr_rcvd_beacons_read_52836 pwr_rcvd_beacons_read 3 52836 NULL
+ext2_xattr_set_acl_52857 ext2_xattr_set_acl 4 52857 NULL
+mon_bin_get_event_52863 mon_bin_get_event 4 52863 NULL
+twlreg_write_52880 twlreg_write 3 52880 NULL
+pvr2_ctrl_value_to_sym_internal_52881 pvr2_ctrl_value_to_sym_internal 5 52881 NULL
+cache_read_procfs_52882 cache_read_procfs 3 52882 NULL
+kvm_kvzalloc_52894 kvm_kvzalloc 1 52894 NULL
+arizona_request_irq_52908 arizona_request_irq 2 52908 NULL
+__kfifo_out_peek_r_52919 __kfifo_out_peek_r 3 52919 NULL
+iblock_get_bio_52936 iblock_get_bio 3 52936 NULL nohasharray
+__iio_device_attr_init_52936 __iio_device_attr_init 0 52936 &iblock_get_bio_52936
+__nodes_remap_52951 __nodes_remap 5 52951 NULL
+send_packet_52960 send_packet 4 52960 NULL
+ieee80211_if_fmt_fwded_mcast_52961 ieee80211_if_fmt_fwded_mcast 3 52961 NULL
+hx8357_spi_write_then_read_52964 hx8357_spi_write_then_read 3 52964 NULL nohasharray
+compat_sock_ioctl_52964 compat_sock_ioctl 3 52964 &hx8357_spi_write_then_read_52964
+tx_tx_exch_read_52986 tx_tx_exch_read 3 52986 NULL
+num_node_state_52989 num_node_state 0 52989 NULL
+batadv_check_management_packet_52993 batadv_check_management_packet 3 52993 NULL
+efivarfs_file_write_53000 efivarfs_file_write 3 53000 NULL
+btrfs_free_and_pin_reserved_extent_53016 btrfs_free_and_pin_reserved_extent 2 53016 NULL
+tx_tx_exch_pending_read_53018 tx_tx_exch_pending_read 3 53018 NULL
+ext4_meta_bg_first_group_53031 ext4_meta_bg_first_group 0-2 53031 NULL
+bio_cur_bytes_53037 bio_cur_bytes 0 53037 NULL
+regcache_lzo_block_count_53056 regcache_lzo_block_count 0 53056 NULL
+cfi_read_query_53066 cfi_read_query 0 53066 NULL
+mwifiex_debug_read_53074 mwifiex_debug_read 3 53074 NULL
+qib_resize_cq_53090 qib_resize_cq 2 53090 NULL
+verity_status_53120 verity_status 5 53120 NULL
+brcmf_usb_dl_cmd_53130 brcmf_usb_dl_cmd 4 53130 NULL
+ps_poll_ps_poll_max_ap_turn_read_53140 ps_poll_ps_poll_max_ap_turn_read 3 53140 NULL
+ieee80211_bss_info_update_53170 ieee80211_bss_info_update 4 53170 NULL
+clear_capture_buf_53192 clear_capture_buf 2 53192 NULL
+mtdoops_erase_block_53206 mtdoops_erase_block 2 53206 NULL
+fixup_user_fault_53210 fixup_user_fault 3 53210 NULL
+tx_tx_start_data_read_53219 tx_tx_start_data_read 3 53219 NULL
+rbd_obj_method_sync_53252 rbd_obj_method_sync 8 53252 NULL
+xfs_trans_read_buf_map_53258 xfs_trans_read_buf_map 5 53258 NULL
+wil_write_file_ssid_53266 wil_write_file_ssid 3 53266 NULL
+btrfs_file_extent_num_bytes_53269 btrfs_file_extent_num_bytes 0 53269 NULL
+batadv_interface_rx_53325 batadv_interface_rx 4 53325 NULL
+gsm_control_reply_53333 gsm_control_reply 4 53333 NULL
+vm_mmap_53339 vm_mmap 0 53339 NULL
+sock_setbindtodevice_53369 sock_setbindtodevice 3 53369 NULL
+get_random_bytes_arch_53370 get_random_bytes_arch 2 53370 NULL
+iwl_pcie_txq_alloc_53413 iwl_pcie_txq_alloc 3 53413 NULL
+isr_cmd_cmplt_read_53439 isr_cmd_cmplt_read 3 53439 NULL
+mwifiex_info_read_53447 mwifiex_info_read 3 53447 NULL
+apei_exec_run_optional_53452 apei_exec_run_optional 0 53452 NULL
+acpi_tb_parse_root_table_53455 acpi_tb_parse_root_table 1 53455 NULL
+n2_run_53459 n2_run 3 53459 NULL
+paging64_prefetch_gpte_53468 paging64_prefetch_gpte 4 53468 NULL
+rds_tcp_data_recv_53476 rds_tcp_data_recv 3 53476 NULL
+iowarrior_read_53483 iowarrior_read 3 53483 NULL
+osd_req_write_kern_53486 osd_req_write_kern 5 53486 NULL
+do_verify_xattr_datum_53499 do_verify_xattr_datum 0 53499 NULL
+snd_pcm_format_physical_width_53505 snd_pcm_format_physical_width 0 53505 NULL
+dbAllocNext_53506 dbAllocNext 0 53506 NULL
+ocfs2_xattr_set_acl_53508 ocfs2_xattr_set_acl 4 53508 NULL
+check_acl_53512 check_acl 0 53512 NULL
+alloc_pages_exact_nid_53515 alloc_pages_exact_nid 2 53515 NULL
+set_registers_53582 set_registers 3 53582 NULL
+cifs_utf16_bytes_53593 cifs_utf16_bytes 0 53593 NULL
+gfn_to_pfn_async_53597 gfn_to_pfn_async 2 53597 NULL
+___alloc_bootmem_nopanic_53626 ___alloc_bootmem_nopanic 1-2 53626 NULL
+xd_write_multiple_pages_53633 xd_write_multiple_pages 6-5 53633 NULL
+ccid_getsockopt_builtin_ccids_53634 ccid_getsockopt_builtin_ccids 2 53634 NULL
+nr_sendmsg_53656 nr_sendmsg 4 53656 NULL
+_preload_range_53676 _preload_range 2-3 53676 NULL
+fuse_fill_write_pages_53682 fuse_fill_write_pages 4 53682 NULL
+v4l2_event_subscribe_53687 v4l2_event_subscribe 3 53687 NULL
+bdev_logical_block_size_53690 bdev_logical_block_size 0 53690 NULL nohasharray
+igb_alloc_q_vector_53690 igb_alloc_q_vector 4-6 53690 &bdev_logical_block_size_53690
+find_overflow_devnum_53711 find_overflow_devnum 0 53711 NULL
+bio_integrity_split_53714 bio_integrity_split 3 53714 NULL
+__ocfs2_resv_find_window_53721 __ocfs2_resv_find_window 3 53721 NULL
+wdm_write_53735 wdm_write 3 53735 NULL
+ext3_try_to_allocate_with_rsv_53737 ext3_try_to_allocate_with_rsv 5-3 53737 NULL
+da9052_disable_irq_53745 da9052_disable_irq 2 53745 NULL
+lpfc_idiag_queacc_read_qe_53755 lpfc_idiag_queacc_read_qe 0-2 53755 NULL nohasharray
+amdtp_out_stream_get_max_payload_53755 amdtp_out_stream_get_max_payload 0 53755 &lpfc_idiag_queacc_read_qe_53755
+ext2_acl_count_53773 ext2_acl_count 0-1 53773 NULL
+__kfifo_dma_in_prepare_r_53792 __kfifo_dma_in_prepare_r 4-5 53792 NULL
+qp_alloc_host_work_53798 qp_alloc_host_work 3-5 53798 NULL
+__tty_alloc_driver_53799 __tty_alloc_driver 1 53799 NULL
+regmap_raw_write_53803 regmap_raw_write 2-4 53803 NULL
+lpfc_idiag_ctlacc_read_reg_53809 lpfc_idiag_ctlacc_read_reg 0-3 53809 NULL
+nls_nullsize_53815 nls_nullsize 0 53815 NULL
+pms_read_53873 pms_read 3 53873 NULL
+ieee80211_if_fmt_dropped_frames_congestion_53883 ieee80211_if_fmt_dropped_frames_congestion 3 53883 NULL
+ocfs2_rm_xattr_cluster_53900 ocfs2_rm_xattr_cluster 5-4-3 53900 NULL
+proc_file_read_53905 proc_file_read 3 53905 NULL
+early_reserve_e820_53915 early_reserve_e820 1-2 53915 NULL
+ocfs2_make_clusters_writable_53938 ocfs2_make_clusters_writable 4 53938 NULL
+mthca_setup_cmd_doorbells_53954 mthca_setup_cmd_doorbells 2 53954 NULL
+mlx4_num_eq_uar_53965 mlx4_num_eq_uar 0 53965 NULL
+idetape_chrdev_write_53976 idetape_chrdev_write 3 53976 NULL
+mthca_reg_user_mr_53980 mthca_reg_user_mr 2-3 53980 NULL
+__ocfs2_xattr_set_value_outside_53981 __ocfs2_xattr_set_value_outside 5 53981 NULL
+ieee80211_if_fmt_dot11MeshHWMPperrMinInterval_53998 ieee80211_if_fmt_dot11MeshHWMPperrMinInterval 3 53998 NULL
+snd_pcm_lib_write_transfer_54018 snd_pcm_lib_write_transfer 4-2-5 54018 NULL
+cmpk_message_handle_tx_54024 cmpk_message_handle_tx 4 54024 NULL
+ipxrtr_route_packet_54036 ipxrtr_route_packet 4 54036 NULL
+pipeline_dec_packet_out_read_54052 pipeline_dec_packet_out_read 3 54052 NULL
+nl80211_send_disconnected_54056 nl80211_send_disconnected 5 54056 NULL
+rproc_state_read_54057 rproc_state_read 3 54057 NULL
+_malloc_54077 _malloc 1 54077 NULL
+bitmap_bitremap_54096 bitmap_bitremap 4 54096 NULL
+altera_set_ir_pre_54103 altera_set_ir_pre 2 54103 NULL
+create_xattr_54106 create_xattr 5 54106 NULL
+strn_len_54122 strn_len 0 54122 NULL
+isku_receive_54130 isku_receive 4 54130 NULL
+isr_host_acknowledges_read_54136 isr_host_acknowledges_read 3 54136 NULL
+i2400m_zrealloc_2x_54166 i2400m_zrealloc_2x 3 54166 NULL nohasharray
+memcpy_toiovec_54166 memcpy_toiovec 3 54166 &i2400m_zrealloc_2x_54166
+nouveau_falcon_create__54169 nouveau_falcon_create_ 8 54169 NULL
+acpi_os_read_memory_54186 acpi_os_read_memory 1-3 54186 NULL
+__register_chrdev_54223 __register_chrdev 2-3 54223 NULL
+_format_mac_addr_54229 _format_mac_addr 2-0 54229 NULL
+pi_read_regr_54231 pi_read_regr 0 54231 NULL
+reada_add_block_54247 reada_add_block 2 54247 NULL
+xfs_dir2_sf_addname_hard_54254 xfs_dir2_sf_addname_hard 3 54254 NULL
+ceph_msgpool_get_54258 ceph_msgpool_get 2 54258 NULL
+wusb_prf_54261 wusb_prf 7 54261 NULL nohasharray
+audio_write_54261 audio_write 4 54261 &wusb_prf_54261
+mwifiex_getlog_read_54269 mwifiex_getlog_read 3 54269 NULL
+ubi_calc_data_len_54279 ubi_calc_data_len 0-3 54279 NULL
+altera_set_dr_post_54291 altera_set_dr_post 2 54291 NULL
+dlm_alloc_pagevec_54296 dlm_alloc_pagevec 1 54296 NULL
+get_iovec_page_array_54298 get_iovec_page_array 6 54298 NULL
+sprintf_54306 sprintf 0 54306 NULL
+irq_domain_associate_many_54307 irq_domain_associate_many 2 54307 NULL
+br_fdb_fillbuf_54339 br_fdb_fillbuf 0 54339 NULL
+__alloc_dev_table_54343 __alloc_dev_table 2 54343 NULL
+__get_free_pages_54352 __get_free_pages 0 54352 NULL nohasharray
+_osd_realloc_seg_54352 _osd_realloc_seg 3 54352 &__get_free_pages_54352
+tcf_hash_create_54360 tcf_hash_create 4 54360 NULL
+read_file_credit_dist_stats_54367 read_file_credit_dist_stats 3 54367 NULL
+vfs_readlink_54368 vfs_readlink 3 54368 NULL
+do_dccp_setsockopt_54377 do_dccp_setsockopt 5 54377 NULL nohasharray
+intel_sdvo_write_cmd_54377 intel_sdvo_write_cmd 4 54377 &do_dccp_setsockopt_54377
+ah_alloc_tmp_54378 ah_alloc_tmp 3-2 54378 NULL
+gart_unmap_page_54379 gart_unmap_page 2-3 54379 NULL
+snd_pcm_oss_read2_54387 snd_pcm_oss_read2 0-3 54387 NULL
+i386_mmap_check_54388 i386_mmap_check 0 54388 NULL
+__do_krealloc_54389 __do_krealloc 2 54389 NULL
+iwl_dbgfs_power_save_status_read_54392 iwl_dbgfs_power_save_status_read 3 54392 NULL
+copy_gadget_strings_54417 copy_gadget_strings 2-3 54417 NULL
+swiotlb_tbl_sync_single_54486 swiotlb_tbl_sync_single 2 54486 NULL
+simple_strtoull_54493 simple_strtoull 0 54493 NULL
+swiotlb_tbl_map_single_54495 swiotlb_tbl_map_single 3-0 54495 NULL
+btrfs_ordered_sum_size_54509 btrfs_ordered_sum_size 0-2 54509 NULL
+cgroup_write_X64_54514 cgroup_write_X64 5 54514 NULL nohasharray
+xen_bus_to_phys_54514 xen_bus_to_phys 0 54514 &cgroup_write_X64_54514
+rfc4106_set_key_54519 rfc4106_set_key 3 54519 NULL
+vmci_transport_dgram_enqueue_54525 vmci_transport_dgram_enqueue 4 54525 NULL
+viacam_read_54526 viacam_read 3 54526 NULL
+unix_dgram_connect_54535 unix_dgram_connect 3 54535 NULL
+setsockopt_54539 setsockopt 5 54539 NULL
+mwifiex_usb_submit_rx_urb_54558 mwifiex_usb_submit_rx_urb 2 54558 NULL
+nfsd_vfs_write_54577 nfsd_vfs_write 6 54577 NULL
+fw_iso_buffer_init_54582 fw_iso_buffer_init 3 54582 NULL
+nvme_npages_54601 nvme_npages 0-1 54601 NULL
+fwSendNullPacket_54618 fwSendNullPacket 2 54618 NULL
+irq_timeout_read_54653 irq_timeout_read 3 54653 NULL
+dns_resolver_read_54658 dns_resolver_read 3 54658 NULL
+twl6030_interrupt_mask_54659 twl6030_interrupt_mask 2 54659 NULL
+kvm_read_cr3_54662 kvm_read_cr3 0 54662 NULL
+bio_kmalloc_54672 bio_kmalloc 2 54672 NULL
+vring_new_virtqueue_54673 vring_new_virtqueue 2 54673 NULL
+evm_read_key_54674 evm_read_key 3 54674 NULL
+resource_string_54699 resource_string 0 54699 NULL
+platform_get_irq_byname_54700 platform_get_irq_byname 0 54700 NULL
+rfkill_fop_read_54711 rfkill_fop_read 3 54711 NULL
+_add_sg_continuation_descriptor_54721 _add_sg_continuation_descriptor 3 54721 NULL
+ocfs2_control_write_54737 ocfs2_control_write 3 54737 NULL
+kzalloc_54740 kzalloc 1 54740 NULL
+wep_iv_read_54744 wep_iv_read 3 54744 NULL
+iio_event_chrdev_read_54757 iio_event_chrdev_read 3 54757 NULL
+batadv_iv_ogm_aggregate_new_54761 batadv_iv_ogm_aggregate_new 2 54761 NULL
+adis16480_show_firmware_date_54762 adis16480_show_firmware_date 3 54762 NULL
+flexcop_device_kmalloc_54793 flexcop_device_kmalloc 1 54793 NULL
+domain_init_54797 domain_init 2 54797 NULL
+ext3_find_goal_54801 ext3_find_goal 0 54801 NULL
+get_dev_size_54807 get_dev_size 0 54807 NULL
+nfsd_write_54809 nfsd_write 6 54809 NULL
+aes_decrypt_fail_read_54815 aes_decrypt_fail_read 3 54815 NULL nohasharray
+crypto_tfm_ctx_alignment_54815 crypto_tfm_ctx_alignment 0 54815 &aes_decrypt_fail_read_54815
+generic_perform_write_54832 generic_perform_write 3 54832 NULL
+write_rio_54837 write_rio 3 54837 NULL
+nouveau_engctx_create__54839 nouveau_engctx_create_ 8 54839 NULL nohasharray
+ext3_acl_from_disk_54839 ext3_acl_from_disk 2 54839 &nouveau_engctx_create__54839
+ufx_ops_write_54848 ufx_ops_write 3 54848 NULL
+printer_read_54851 printer_read 3 54851 NULL
+qib_reg_user_mr_54858 qib_reg_user_mr 2-3 54858 NULL
+alloc_ep_req_54860 alloc_ep_req 2 54860 NULL
+broadsheet_spiflash_rewrite_sector_54864 broadsheet_spiflash_rewrite_sector 2 54864 NULL
+prism_build_supp_rates_54865 prism_build_supp_rates 0 54865 NULL
+tcf_csum_ipv6_tcp_54877 tcf_csum_ipv6_tcp 4 54877 NULL
+iscsi_pool_init_54913 iscsi_pool_init 2-4 54913 NULL
+btrfs_stack_chunk_num_stripes_54923 btrfs_stack_chunk_num_stripes 0 54923 NULL
+mxms_structlen_54939 mxms_structlen 0 54939 NULL
+add_port_54941 add_port 2 54941 NULL
+virtblk_add_buf_wait_54943 virtblk_add_buf_wait 3-4 54943 NULL
+wl12xx_cmd_build_probe_req_54946 wl12xx_cmd_build_probe_req 6-8 54946 NULL
+ath9k_dump_btcoex_54949 ath9k_dump_btcoex 0 54949 NULL
+c4_add_card_54968 c4_add_card 3 54968 NULL
+iwl_pcie_dump_fh_54975 iwl_pcie_dump_fh 0 54975 NULL
+__proc_file_read_54978 __proc_file_read 3 54978 NULL
+ext3_xattr_get_54989 ext3_xattr_get 0 54989 NULL
+Bus_to_Virtual_54991 Bus_to_Virtual 1 54991 NULL
+cx231xx_v4l2_read_55014 cx231xx_v4l2_read 3 55014 NULL
+paging32_get_level1_sp_gpa_55022 paging32_get_level1_sp_gpa 0 55022 NULL
+error_error_null_Frame_tx_start_read_55024 error_error_null_Frame_tx_start_read 3 55024 NULL
+__netdev_alloc_skb_ip_align_55067 __netdev_alloc_skb_ip_align 2 55067 NULL
+apei_exec_run_55075 apei_exec_run 0 55075 NULL
+bitmap_storage_alloc_55077 bitmap_storage_alloc 2 55077 NULL
+hx8357_spi_write_array_55095 hx8357_spi_write_array 3 55095 NULL
+rxpipe_beacon_buffer_thres_host_int_trig_rx_data_read_55106 rxpipe_beacon_buffer_thres_host_int_trig_rx_data_read 3 55106 NULL
+corrupt_data_55120 corrupt_data 0 55120 NULL
+crypto_ahash_setkey_55134 crypto_ahash_setkey 3 55134 NULL
+ocfs2_prepare_refcount_change_for_del_55137 ocfs2_prepare_refcount_change_for_del 3 55137 NULL nohasharray
+filldir_55137 filldir 3 55137 &ocfs2_prepare_refcount_change_for_del_55137
+ocfs2_truncate_file_55148 ocfs2_truncate_file 3 55148 NULL
+ieee80211_if_read_uapsd_queues_55150 ieee80211_if_read_uapsd_queues 3 55150 NULL
+mtd_get_fact_prot_info_55186 mtd_get_fact_prot_info 0 55186 NULL
+sel_write_relabel_55195 sel_write_relabel 3 55195 NULL
+sched_feat_write_55202 sched_feat_write 3 55202 NULL
+ht40allow_map_read_55209 ht40allow_map_read 3 55209 NULL
+__kfifo_dma_out_prepare_r_55211 __kfifo_dma_out_prepare_r 4-5 55211 NULL
+do_raw_setsockopt_55215 do_raw_setsockopt 5 55215 NULL
+dump_command_55220 dump_command 1 55220 NULL
+dbAllocDmap_55227 dbAllocDmap 0 55227 NULL
+tipc_port_reject_sections_55229 tipc_port_reject_sections 5 55229 NULL
+register_unifi_sdio_55239 register_unifi_sdio 2 55239 NULL
+memcpy_fromiovec_55247 memcpy_fromiovec 3 55247 NULL
+ptrace_request_55288 ptrace_request 3 55288 NULL
+rx_streaming_interval_read_55291 rx_streaming_interval_read 3 55291 NULL
+gsm_control_modem_55303 gsm_control_modem 3 55303 NULL
+qp_alloc_guest_work_55305 qp_alloc_guest_work 3-5 55305 NULL nohasharray
+__get_vm_area_node_55305 __get_vm_area_node 1 55305 &qp_alloc_guest_work_55305
+do_shmat_55336 do_shmat 5 55336 NULL
+vme_user_read_55338 vme_user_read 3 55338 NULL
+sctp_datamsg_from_user_55342 sctp_datamsg_from_user 4 55342 NULL nohasharray
+__wa_xfer_setup_sizes_55342 __wa_xfer_setup_sizes 0 55342 &sctp_datamsg_from_user_55342
+__memblock_alloc_base_55359 __memblock_alloc_base 1-2 55359 NULL
+acpi_system_read_event_55362 acpi_system_read_event 3 55362 NULL
+nf_nat_ipv4_manip_pkt_55387 nf_nat_ipv4_manip_pkt 2 55387 NULL
+iwl_dbgfs_plcp_delta_read_55407 iwl_dbgfs_plcp_delta_read 3 55407 NULL
+alloc_skb_55439 alloc_skb 1 55439 NULL
+__vxge_hw_channel_allocate_55462 __vxge_hw_channel_allocate 3 55462 NULL
+isdnhdlc_decode_55466 isdnhdlc_decode 0 55466 NULL
+cx23888_ir_rx_read_55473 cx23888_ir_rx_read 3 55473 NULL
+batadv_unicast_push_and_fill_skb_55474 batadv_unicast_push_and_fill_skb 2 55474 NULL
+snd_pcm_lib_write_55483 snd_pcm_lib_write 0-3 55483 NULL
+i2o_pool_alloc_55485 i2o_pool_alloc 4 55485 NULL
+ocfs2_rec_clusters_55501 ocfs2_rec_clusters 0 55501 NULL
+ext4_flex_bg_size_55502 ext4_flex_bg_size 0 55502 NULL
+cfpkt_pad_trail_55511 cfpkt_pad_trail 2 55511 NULL nohasharray
+tx_tx_done_int_template_read_55511 tx_tx_done_int_template_read 3 55511 &cfpkt_pad_trail_55511
+ea_get_55522 ea_get 0 55522 NULL
+buffer_size_55534 buffer_size 0 55534 NULL
+set_msr_interception_55538 set_msr_interception 2 55538 NULL
+tty_port_register_device_55543 tty_port_register_device 3 55543 NULL
+add_partition_55588 add_partition 2 55588 NULL
+free_pages_55603 free_pages 1 55603 NULL
+macvtap_put_user_55609 macvtap_put_user 4 55609 NULL
+selinux_setprocattr_55611 selinux_setprocattr 4 55611 NULL
+edge_tty_recv_55622 edge_tty_recv 3 55622 NULL
+reiserfs_xattr_get_55628 reiserfs_xattr_get 0 55628 NULL nohasharray
+pktgen_if_write_55628 pktgen_if_write 3 55628 &reiserfs_xattr_get_55628
+dvb_dmxdev_set_buffer_size_55643 dvb_dmxdev_set_buffer_size 2 55643 NULL
+mlx4_buddy_alloc_55647 mlx4_buddy_alloc 2 55647 NULL
+xfs_bmbt_maxrecs_55649 xfs_bmbt_maxrecs 0-2 55649 NULL
+ib_umad_compat_ioctl_55650 ib_umad_compat_ioctl 3 55650 NULL
+cfg80211_send_rx_assoc_55651 cfg80211_send_rx_assoc 4 55651 NULL
+read_oldmem_55658 read_oldmem 3 55658 NULL
+lpfc_idiag_queinfo_read_55662 lpfc_idiag_queinfo_read 3 55662 NULL
+il_dbgfs_tx_queue_read_55668 il_dbgfs_tx_queue_read 3 55668 NULL
+get_info_55681 get_info 3 55681 NULL
+wil_vring_alloc_skb_55703 wil_vring_alloc_skb 4 55703 NULL
+__videobuf_alloc_uncached_55711 __videobuf_alloc_uncached 1 55711 NULL
+pm8001_store_update_fw_55716 pm8001_store_update_fw 4 55716 NULL
+mtdswap_init_55719 mtdswap_init 2 55719 NULL
+__iio_allocate_kfifo_55738 __iio_allocate_kfifo 2 55738 NULL
+set_local_name_55757 set_local_name 4 55757 NULL
+strlen_55778 strlen 0 55778 NULL
+set_spte_55783 set_spte 5-4 55783 NULL
+req_bio_endio_55786 req_bio_endio 3 55786 NULL nohasharray
+conf_read_55786 conf_read 3 55786 &req_bio_endio_55786
+uwb_rc_neh_grok_event_55799 uwb_rc_neh_grok_event 3 55799 NULL
+sb16_copy_from_user_55836 sb16_copy_from_user 10-6-7 55836 NULL
+ip_hdrlen_55849 ip_hdrlen 0 55849 NULL
+hcd_alloc_coherent_55862 hcd_alloc_coherent 5 55862 NULL
+shmem_setxattr_55867 shmem_setxattr 4 55867 NULL
+hsc_write_55875 hsc_write 3 55875 NULL
+pm_qos_power_read_55891 pm_qos_power_read 3 55891 NULL
+snd_pcm_hw_param_value_min_55917 snd_pcm_hw_param_value_min 0 55917 NULL
+paging64_page_fault_55942 paging64_page_fault 2 55942 NULL
+sel_read_policy_55947 sel_read_policy 3 55947 NULL
+ceph_get_direct_page_vector_55956 ceph_get_direct_page_vector 2 55956 NULL
+simple_read_from_buffer_55957 simple_read_from_buffer 2-5 55957 NULL
+tx_tx_imm_resp_read_55964 tx_tx_imm_resp_read 3 55964 NULL
+ssb_bus_pcmciabus_register_56020 ssb_bus_pcmciabus_register 3 56020 NULL
+nvme_alloc_iod_56027 nvme_alloc_iod 1-2 56027 NULL
+dccp_sendmsg_56058 dccp_sendmsg 4 56058 NULL
+__set_discard_56081 __set_discard 2 56081 NULL
+pscsi_get_bio_56103 pscsi_get_bio 1 56103 NULL
+usb_alloc_stream_buffers_56123 usb_alloc_stream_buffers 3 56123 NULL
+kmem_zalloc_large_56128 kmem_zalloc_large 1 56128 NULL
+sel_read_handle_status_56139 sel_read_handle_status 3 56139 NULL
+map_addr_56144 map_addr 7 56144 NULL
+rawv6_setsockopt_56165 rawv6_setsockopt 5 56165 NULL
+create_irq_nr_56180 create_irq_nr 1 56180 NULL
+ath9k_dump_legacy_btcoex_56194 ath9k_dump_legacy_btcoex 0 56194 NULL
+skb_headroom_56200 skb_headroom 0 56200 NULL
+usb_dump_iad_descriptor_56204 usb_dump_iad_descriptor 0 56204 NULL
+ncp_read_bounce_size_56221 ncp_read_bounce_size 0-1 56221 NULL
+ocfs2_find_xe_in_bucket_56224 ocfs2_find_xe_in_bucket 0 56224 NULL
+cp210x_get_config_56229 cp210x_get_config 4 56229 NULL
+do_ipt_set_ctl_56238 do_ipt_set_ctl 4 56238 NULL
+fd_copyin_56247 fd_copyin 3 56247 NULL
+sk_rmem_schedule_56255 sk_rmem_schedule 3 56255 NULL
+il4965_ucode_general_stats_read_56277 il4965_ucode_general_stats_read 3 56277 NULL
+ieee80211_if_fmt_user_power_level_56283 ieee80211_if_fmt_user_power_level 3 56283 NULL
+RESIZE_IF_NEEDED_56286 RESIZE_IF_NEEDED 2 56286 NULL
+dvb_aplay_56296 dvb_aplay 3 56296 NULL
+btmrvl_hscfgcmd_read_56303 btmrvl_hscfgcmd_read 3 56303 NULL
+compat_cdrom_read_audio_56304 compat_cdrom_read_audio 4 56304 NULL
+pipeline_pre_to_defrag_swi_read_56321 pipeline_pre_to_defrag_swi_read 3 56321 NULL
+journal_init_revoke_table_56331 journal_init_revoke_table 1 56331 NULL
+snd_rawmidi_read_56337 snd_rawmidi_read 3 56337 NULL
+sixpack_compat_ioctl_56346 sixpack_compat_ioctl 4 56346 NULL
+vxge_os_dma_malloc_async_56348 vxge_os_dma_malloc_async 3 56348 NULL
+iov_iter_copy_from_user_atomic_56368 iov_iter_copy_from_user_atomic 4 56368 NULL
+dev_read_56369 dev_read 3 56369 NULL
+ocfs2_control_read_56405 ocfs2_control_read 3 56405 NULL
+__get_vm_area_caller_56416 __get_vm_area_caller 1 56416 NULL nohasharray
+acpi_os_write_memory_56416 acpi_os_write_memory 1-3 56416 &__get_vm_area_caller_56416
+store_msg_56417 store_msg 3 56417 NULL
+pppol2tp_sendmsg_56420 pppol2tp_sendmsg 4 56420 NULL
+fl_create_56435 fl_create 5 56435 NULL
+gnttab_map_56439 gnttab_map 2 56439 NULL
+cx231xx_init_isoc_56453 cx231xx_init_isoc 3-2 56453 NULL
+set_connectable_56458 set_connectable 4 56458 NULL
+osd_req_list_partition_objects_56464 osd_req_list_partition_objects 5 56464 NULL
+calc_linear_pos_56472 calc_linear_pos 0-3 56472 NULL
+crypto_shash_alignmask_56486 crypto_shash_alignmask 0 56486 NULL
+ieee80211_rx_mgmt_probe_beacon_56491 ieee80211_rx_mgmt_probe_beacon 3 56491 NULL
+cfg80211_connect_result_56515 cfg80211_connect_result 4-6 56515 NULL
+ip_options_get_56538 ip_options_get 4 56538 NULL
+ocfs2_change_extent_flag_56549 ocfs2_change_extent_flag 5 56549 NULL
+alloc_apertures_56561 alloc_apertures 1 56561 NULL
+rs_sta_dbgfs_stats_table_read_56573 rs_sta_dbgfs_stats_table_read 3 56573 NULL
+portcntrs_2_read_56586 portcntrs_2_read 3 56586 NULL
+event_filter_write_56609 event_filter_write 3 56609 NULL
+gather_array_56641 gather_array 3 56641 NULL
+uvc_debugfs_stats_read_56651 uvc_debugfs_stats_read 3 56651 NULL
+snd_gus_dram_read_56686 snd_gus_dram_read 4 56686 NULL nohasharray
+da9055_gpio_to_irq_56686 da9055_gpio_to_irq 2 56686 &snd_gus_dram_read_56686
+build_map_info_56696 build_map_info 2 56696 NULL
+dvb_ringbuffer_read_user_56702 dvb_ringbuffer_read_user 3 56702 NULL
+sta_flags_read_56710 sta_flags_read 3 56710 NULL
+ipv6_getsockopt_sticky_56711 ipv6_getsockopt_sticky 5 56711 NULL
+__wa_xfer_setup_segs_56725 __wa_xfer_setup_segs 2 56725 NULL
+pcpu_populate_chunk_56741 pcpu_populate_chunk 2-3 56741 NULL
+drm_agp_bind_pages_56748 drm_agp_bind_pages 3 56748 NULL
+btrfsic_map_block_56751 btrfsic_map_block 2 56751 NULL
+alloc_iommu_56778 alloc_iommu 2-3 56778 NULL
+__carl9170_rx_56784 __carl9170_rx 3 56784 NULL
+hash_lookup_56792 hash_lookup 2 56792 NULL
+do_syslog_56807 do_syslog 3 56807 NULL
+mtdchar_write_56831 mtdchar_write 3 56831 NULL nohasharray
+ntfs_rl_realloc_56831 ntfs_rl_realloc 3 56831 &mtdchar_write_56831
+snd_rawmidi_kernel_write1_56847 snd_rawmidi_kernel_write1 4 56847 NULL
+wb_lookup_56858 wb_lookup 2 56858 NULL
+ext3_xattr_ibody_get_56880 ext3_xattr_ibody_get 0 56880 NULL
+pvr2_debugifc_print_status_56890 pvr2_debugifc_print_status 3 56890 NULL
+debug_debug3_read_56894 debug_debug3_read 3 56894 NULL
+batadv_tt_update_changes_56895 batadv_tt_update_changes 3 56895 NULL
+strcspn_56913 strcspn 0 56913 NULL
+__kfifo_out_56927 __kfifo_out 0-3 56927 NULL
+check_header_56930 check_header 2 56930 NULL
+journal_init_revoke_56933 journal_init_revoke 2 56933 NULL
+diva_get_driver_info_56967 diva_get_driver_info 0 56967 NULL
+nouveau_device_create__56984 nouveau_device_create_ 6 56984 NULL
+vlsi_alloc_ring_57003 vlsi_alloc_ring 3-4 57003 NULL
+btrfs_super_csum_size_57004 btrfs_super_csum_size 0 57004 NULL
+aircable_process_packet_57027 aircable_process_packet 4 57027 NULL
+skb_network_offset_57043 skb_network_offset 0 57043 NULL nohasharray
+ieee80211_if_fmt_state_57043 ieee80211_if_fmt_state 3 57043 &skb_network_offset_57043
+bytes_to_samples_57049 bytes_to_samples 0-2 57049 NULL
+xfs_buf_read_map_57053 xfs_buf_read_map 3 57053 NULL
+autofs_dev_ioctl_compat_57059 autofs_dev_ioctl_compat 3 57059 NULL
+cx2341x_ctrl_new_std_57061 cx2341x_ctrl_new_std 4 57061 NULL
+sca3000_read_data_57064 sca3000_read_data 4 57064 NULL
+pcmcia_replace_cis_57066 pcmcia_replace_cis 3 57066 NULL
+sis190_try_rx_copy_57069 sis190_try_rx_copy 3 57069 NULL
+tracing_set_trace_write_57096 tracing_set_trace_write 3 57096 NULL
+crypto_compress_ctxsize_57109 crypto_compress_ctxsize 0 57109 NULL
+sysfs_write_file_57116 sysfs_write_file 3 57116 NULL
+cipso_v4_gentag_loc_57119 cipso_v4_gentag_loc 0 57119 NULL
+nl80211_send_deauth_57136 nl80211_send_deauth 4 57136 NULL nohasharray
+rds_ib_sub_signaled_57136 rds_ib_sub_signaled 2 57136 &nl80211_send_deauth_57136 nohasharray
+ima_show_htable_value_57136 ima_show_htable_value 2 57136 &rds_ib_sub_signaled_57136
+snd_sonicvibes_getdmac_57140 snd_sonicvibes_getdmac 0 57140 NULL
+udl_prime_create_57159 udl_prime_create 2 57159 NULL
+__ipath_get_user_pages_57166 __ipath_get_user_pages 1-2 57166 NULL
+stk_prepare_sio_buffers_57168 stk_prepare_sio_buffers 2 57168 NULL
+rx_hw_stuck_read_57179 rx_hw_stuck_read 3 57179 NULL
+tt3650_ci_msg_57219 tt3650_ci_msg 4 57219 NULL
+dma_fifo_alloc_57236 dma_fifo_alloc 5-3-2 57236 NULL
+ieee80211_if_fmt_tsf_57249 ieee80211_if_fmt_tsf 3 57249 NULL
+oprofilefs_ulong_from_user_57251 oprofilefs_ulong_from_user 3 57251 NULL
+alloc_flex_gd_57259 alloc_flex_gd 1 57259 NULL
+security_mmap_file_57268 security_mmap_file 0 57268 NULL
+pstore_file_read_57288 pstore_file_read 3 57288 NULL
+snd_pcm_read_57289 snd_pcm_read 3 57289 NULL
+ath6kl_buf_alloc_57304 ath6kl_buf_alloc 1 57304 NULL
+fw_file_size_57307 fw_file_size 0 57307 NULL
+ftdi_elan_write_57309 ftdi_elan_write 3 57309 NULL
+__mxt_write_reg_57326 __mxt_write_reg 3 57326 NULL
+ocfs2_xattr_shrink_size_57328 ocfs2_xattr_shrink_size 3 57328 NULL
+check_mirror_57342 check_mirror 1-2 57342 NULL nohasharray
+usblp_read_57342 usblp_read 3 57342 &check_mirror_57342
+print_devstats_dot11RTSFailureCount_57347 print_devstats_dot11RTSFailureCount 3 57347 NULL
+tipc_bclink_stats_57372 tipc_bclink_stats 2 57372 NULL
+max8997_irq_domain_map_57375 max8997_irq_domain_map 2 57375 NULL
+tty_register_device_attr_57381 tty_register_device_attr 2 57381 NULL
+read_file_blob_57406 read_file_blob 3 57406 NULL
+enclosure_register_57412 enclosure_register 3 57412 NULL
+gre_manip_pkt_57416 gre_manip_pkt 4 57416 NULL
+compat_keyctl_instantiate_key_iov_57431 compat_keyctl_instantiate_key_iov 3 57431 NULL nohasharray
+alloc_ftrace_hash_57431 alloc_ftrace_hash 1 57431 &compat_keyctl_instantiate_key_iov_57431
+copy_to_user_fromio_57432 copy_to_user_fromio 3 57432 NULL
+sys_pselect6_57449 sys_pselect6 1 57449 NULL
+ReadReg_57453 ReadReg 0 57453 NULL
+__roundup_pow_of_two_57461 __roundup_pow_of_two 0 57461 NULL
+crypto_tfm_alg_blocksize_57463 crypto_tfm_alg_blocksize 0 57463 NULL nohasharray
+send_midi_async_57463 send_midi_async 3 57463 &crypto_tfm_alg_blocksize_57463
+sisusb_clear_vram_57466 sisusb_clear_vram 3-2 57466 NULL
+ieee80211_if_read_flags_57470 ieee80211_if_read_flags 3 57470 NULL nohasharray
+sep_lock_user_pages_57470 sep_lock_user_pages 2-3 57470 &ieee80211_if_read_flags_57470
+ocfs2_write_cluster_57483 ocfs2_write_cluster 8-2-9 57483 NULL
+bnad_debugfs_write_regwr_57500 bnad_debugfs_write_regwr 3 57500 NULL
+skb_headlen_57501 skb_headlen 0 57501 NULL
+copy_in_user_57502 copy_in_user 3 57502 NULL
+ks8842_read32_57505 ks8842_read32 0 57505 NULL nohasharray
+ckhdid_printf_57505 ckhdid_printf 2 57505 &ks8842_read32_57505
+init_tag_map_57515 init_tag_map 3 57515 NULL
+wil_read_file_ssid_57517 wil_read_file_ssid 3 57517 NULL nohasharray
+il_dbgfs_force_reset_read_57517 il_dbgfs_force_reset_read 3 57517 &wil_read_file_ssid_57517
+inode_permission_57531 inode_permission 0 57531 NULL
+acpi_dev_get_resources_57534 acpi_dev_get_resources 0 57534 NULL nohasharray
+DoC_Probe_57534 DoC_Probe 1 57534 &acpi_dev_get_resources_57534
+ext4_group_first_block_no_57559 ext4_group_first_block_no 0-2 57559 NULL
+snd_pcm_playback_ioctl1_57569 snd_pcm_playback_ioctl1 0 57569 NULL
+uio_find_mem_index_57584 uio_find_mem_index 0 57584 NULL
+read_file_spectral_fft_period_57593 read_file_spectral_fft_period 3 57593 NULL
+wm831x_gpio_to_irq_57614 wm831x_gpio_to_irq 2 57614 NULL
+sk_stream_alloc_skb_57622 sk_stream_alloc_skb 2 57622 NULL
+tx_tx_retry_template_read_57623 tx_tx_retry_template_read 3 57623 NULL
+osdmap_set_max_osd_57630 osdmap_set_max_osd 2 57630 NULL nohasharray
+sisusbcon_putcs_57630 sisusbcon_putcs 3 57630 &osdmap_set_max_osd_57630
+mem_read_57631 mem_read 3 57631 NULL
+tc3589x_irq_map_57639 tc3589x_irq_map 2 57639 NULL
+sys_mq_timedsend_57661 sys_mq_timedsend 3 57661 NULL
+r3964_write_57662 r3964_write 4 57662 NULL
+proc_ns_readlink_57664 proc_ns_readlink 3 57664 NULL
+__lgwrite_57669 __lgwrite 4 57669 NULL
+ieee80211_MFIE_rate_len_57692 ieee80211_MFIE_rate_len 0 57692 NULL
+f1x_match_to_this_node_57695 f1x_match_to_this_node 3 57695 NULL
+check_prefree_segments_57702 check_prefree_segments 2 57702 NULL
+i2400m_rx_stats_read_57706 i2400m_rx_stats_read 3 57706 NULL
+ieee80211_if_read_dot11MeshHWMPconfirmationInterval_57722 ieee80211_if_read_dot11MeshHWMPconfirmationInterval 3 57722 NULL
+nouveau_gpio_create__57735 nouveau_gpio_create_ 4-5 57735 NULL
+compat_sys_set_mempolicy_57742 compat_sys_set_mempolicy 3 57742 NULL
+ieee80211_if_fmt_dot11MeshHWMPpreqMinInterval_57762 ieee80211_if_fmt_dot11MeshHWMPpreqMinInterval 3 57762 NULL
+ld2_57794 ld2 0 57794 NULL
+ivtv_read_57796 ivtv_read 3 57796 NULL
+generic_ptrace_peekdata_57806 generic_ptrace_peekdata 2 57806 NULL
+ipath_user_sdma_num_pages_57813 ipath_user_sdma_num_pages 0 57813 NULL
+usb_dump_config_57817 usb_dump_config 0 57817 NULL
+bfad_debugfs_read_regrd_57830 bfad_debugfs_read_regrd 3 57830 NULL
+copy_to_user_57835 copy_to_user 3 57835 NULL
+flash_read_57843 flash_read 3 57843 NULL
+xt_alloc_table_info_57903 xt_alloc_table_info 1 57903 NULL
+emi26_writememory_57908 emi26_writememory 4 57908 NULL
+iio_read_first_n_kfifo_57910 iio_read_first_n_kfifo 2 57910 NULL
+memcg_caches_array_size_57918 memcg_caches_array_size 0-1 57918 NULL
+twl_i2c_write_57923 twl_i2c_write 4-3 57923 NULL
+__snd_gf1_look16_57925 __snd_gf1_look16 0 57925 NULL
+sel_read_handle_unknown_57933 sel_read_handle_unknown 3 57933 NULL
+key_algorithm_read_57946 key_algorithm_read 3 57946 NULL
+ip_set_alloc_57953 ip_set_alloc 1 57953 NULL nohasharray
+ioat3_dca_count_dca_slots_57953 ioat3_dca_count_dca_slots 0 57953 &ip_set_alloc_57953
+i915_cache_sharing_write_57961 i915_cache_sharing_write 3 57961 NULL
+hfc_empty_fifo_57972 hfc_empty_fifo 2 57972 NULL
+c2_reg_user_mr_57982 c2_reg_user_mr 2-3 57982 NULL
+rx_reset_counter_read_58001 rx_reset_counter_read 3 58001 NULL
+regcache_rbtree_insert_to_block_58009 regcache_rbtree_insert_to_block 5 58009 NULL
+iwl_dbgfs_ucode_rx_stats_read_58023 iwl_dbgfs_ucode_rx_stats_read 3 58023 NULL
+io_playback_transfer_58030 io_playback_transfer 4 58030 NULL
+mce_async_out_58056 mce_async_out 3 58056 NULL
+ocfs2_find_leaf_58065 ocfs2_find_leaf 0 58065 NULL
+dt3155_alloc_coherent_58073 dt3155_alloc_coherent 2 58073 NULL
+cm4040_write_58079 cm4040_write 3 58079 NULL
+udi_log_event_58105 udi_log_event 3 58105 NULL
+savemem_58129 savemem 3 58129 NULL
+ipv6_flowlabel_opt_58135 ipv6_flowlabel_opt 3 58135 NULL nohasharray
+slhc_init_58135 slhc_init 1-2 58135 &ipv6_flowlabel_opt_58135
+garmin_write_bulk_58191 garmin_write_bulk 3 58191 NULL
+asix_write_cmd_58192 asix_write_cmd 5 58192 NULL
+ieee80211_if_fmt_flags_58205 ieee80211_if_fmt_flags 3 58205 NULL
+hva_to_pfn_58241 hva_to_pfn 1 58241 NULL
+btrfsic_create_link_to_next_block_58246 btrfsic_create_link_to_next_block 4 58246 NULL
+read_file_debug_58256 read_file_debug 3 58256 NULL
+cfg80211_mgmt_tx_status_58266 cfg80211_mgmt_tx_status 4 58266 NULL
+profile_load_58267 profile_load 3 58267 NULL
+acpi_ds_build_internal_package_obj_58271 acpi_ds_build_internal_package_obj 3 58271 NULL
+r100_mm_rreg_58276 r100_mm_rreg 0 58276 NULL
+iscsi_decode_text_input_58292 iscsi_decode_text_input 4 58292 NULL
+ieee80211_if_read_dot11MeshTTL_58307 ieee80211_if_read_dot11MeshTTL 3 58307 NULL
+tx_tx_start_int_templates_read_58324 tx_tx_start_int_templates_read 3 58324 NULL
+pcim_iomap_58334 pcim_iomap 3 58334 NULL
+diva_init_dma_map_58336 diva_init_dma_map 3 58336 NULL
+next_pidmap_58347 next_pidmap 2 58347 NULL
+vmalloc_to_sg_58354 vmalloc_to_sg 2 58354 NULL
+save_hint_58359 save_hint 2 58359 NULL
+brcmf_debugfs_sdio_counter_read_58369 brcmf_debugfs_sdio_counter_read 3 58369 NULL
+il_dbgfs_status_read_58388 il_dbgfs_status_read 3 58388 NULL
+kvm_mmu_write_protect_pt_masked_58406 kvm_mmu_write_protect_pt_masked 3 58406 NULL
+i2400m_pld_size_58415 i2400m_pld_size 0 58415 NULL
+__mlx4_alloc_mtt_range_58418 __mlx4_alloc_mtt_range 2 58418 NULL
+__iio_add_chan_devattr_58451 __iio_add_chan_devattr 0 58451 NULL
+capabilities_read_58457 capabilities_read 3 58457 NULL
+batadv_iv_ogm_aggr_packet_58462 batadv_iv_ogm_aggr_packet 3 58462 NULL
+lpfc_idiag_baracc_read_58466 lpfc_idiag_baracc_read 3 58466 NULL nohasharray
+compat_do_ipt_set_ctl_58466 compat_do_ipt_set_ctl 4 58466 &lpfc_idiag_baracc_read_58466
+snd_gf1_read_addr_58483 snd_gf1_read_addr 0 58483 NULL
+snd_rme96_capture_copy_58484 snd_rme96_capture_copy 5 58484 NULL
+batadv_bla_is_backbone_gw_58488 batadv_bla_is_backbone_gw 3 58488 NULL
+memblock_alloc_try_nid_58493 memblock_alloc_try_nid 1-2 58493 NULL
+rndis_add_response_58544 rndis_add_response 2 58544 NULL
+__clear_discard_58546 __clear_discard 2 58546 NULL
+wep_decrypt_fail_read_58567 wep_decrypt_fail_read 3 58567 NULL
+sip_sprintf_addr_port_58574 sip_sprintf_addr_port 0 58574 NULL
+scnprint_mac_oui_58578 scnprint_mac_oui 3-0 58578 NULL
+ea_read_inline_58589 ea_read_inline 0 58589 NULL
+xip_file_read_58592 xip_file_read 3 58592 NULL
+gdth_search_isa_58595 gdth_search_isa 1 58595 NULL
+ebt_buf_count_58607 ebt_buf_count 0 58607 NULL
+skb_copy_to_page_nocache_58624 skb_copy_to_page_nocache 6 58624 NULL
+module_alloc_update_bounds_rx_58634 module_alloc_update_bounds_rx 1 58634 NULL nohasharray
+efi_ioremap_58634 efi_ioremap 1-2 58634 &module_alloc_update_bounds_rx_58634
+tx_tx_start_fw_gen_read_58648 tx_tx_start_fw_gen_read 3 58648 NULL
+ocfs2_block_to_cluster_start_58653 ocfs2_block_to_cluster_start 2 58653 NULL
+__gfn_to_pfn_58671 __gfn_to_pfn 2 58671 NULL
+iwl_trans_send_cmd_58681 iwl_trans_send_cmd 0 58681 NULL
+find_zero_58685 find_zero 0-1 58685 NULL nohasharray
+mcs7830_set_reg_async_58685 mcs7830_set_reg_async 3 58685 &find_zero_58685
+uwb_bce_print_IEs_58686 uwb_bce_print_IEs 4 58686 NULL
+pci_alloc_consistent_58688 pci_alloc_consistent 0 58688 NULL
+tps6586x_writes_58689 tps6586x_writes 3-2 58689 NULL
+vmalloc_node_58700 vmalloc_node 1 58700 NULL
+acpi_map_58725 acpi_map 1-2 58725 NULL
+da9052_gpio_to_irq_58729 da9052_gpio_to_irq 2 58729 NULL
+csum_exist_in_range_58730 csum_exist_in_range 2 58730 NULL
+frames_to_bytes_58741 frames_to_bytes 0-2 58741 NULL
+ieee80211_if_write_tkip_mic_test_58748 ieee80211_if_write_tkip_mic_test 3 58748 NULL
+agp_allocate_memory_58761 agp_allocate_memory 2 58761 NULL
+oblock_to_dblock_58762 oblock_to_dblock 0-2 58762 NULL
+__do_config_autodelink_58763 __do_config_autodelink 3 58763 NULL
+regmap_calc_reg_len_58795 regmap_calc_reg_len 0 58795 NULL
+raw_send_hdrinc_58803 raw_send_hdrinc 4 58803 NULL
+isku_sysfs_read_58806 isku_sysfs_read 6 58806 NULL
+ep_read_58813 ep_read 3 58813 NULL
+command_write_58841 command_write 3 58841 NULL
+ocfs2_truncate_log_append_58850 ocfs2_truncate_log_append 3 58850 NULL
+ath6kl_wmi_send_action_cmd_58860 ath6kl_wmi_send_action_cmd 7 58860 NULL
+gs_alloc_req_58883 gs_alloc_req 2 58883 NULL
+cs553x_init_one_58886 cs553x_init_one 3 58886 NULL
+raw_ctl_compat_ioctl_58905 raw_ctl_compat_ioctl 3 58905 NULL
+print_devstats_dot11FCSErrorCount_58919 print_devstats_dot11FCSErrorCount 3 58919 NULL
+tun_chr_compat_ioctl_58921 tun_chr_compat_ioctl 3 58921 NULL
+pipeline_cs_rx_packet_out_read_58926 pipeline_cs_rx_packet_out_read 3 58926 NULL
+st5481_isoc_flatten_58952 st5481_isoc_flatten 0 58952 NULL
+ieee80211_if_fmt_dot11MeshHWMPactivePathToRootTimeout_58965 ieee80211_if_fmt_dot11MeshHWMPactivePathToRootTimeout 3 58965 NULL
+idx_to_kaddr_58968 idx_to_kaddr 0 58968 NULL
+crypto_aead_ivsize_58970 crypto_aead_ivsize 0 58970 NULL
+remap_to_cache_dirty_58991 remap_to_cache_dirty 4-3 58991 NULL
+handle_rx_packet_58993 handle_rx_packet 3 58993 NULL
+edac_align_ptr_59003 edac_align_ptr 0 59003 NULL
+ep_write_59008 ep_write 3 59008 NULL
+i915_ring_stop_write_59010 i915_ring_stop_write 3 59010 NULL
+init_pci_cap_msi_perm_59033 init_pci_cap_msi_perm 2 59033 NULL
+selinux_transaction_write_59038 selinux_transaction_write 3 59038 NULL
+crypto_aead_reqsize_59039 crypto_aead_reqsize 0 59039 NULL
+regmap_bulk_write_59049 regmap_bulk_write 4-2 59049 NULL
+vfio_device_fops_compat_ioctl_59111 vfio_device_fops_compat_ioctl 3 59111 NULL
+mmc_sd_num_wr_blocks_59112 mmc_sd_num_wr_blocks 0 59112 NULL
+scsi_io_completion_59122 scsi_io_completion 2 59122 NULL
+nfc_llcp_send_i_frame_59130 nfc_llcp_send_i_frame 3 59130 NULL
+__iio_add_event_config_attrs_59136 __iio_add_event_config_attrs 0 59136 NULL
+print_devstats_dot11RTSSuccessCount_59145 print_devstats_dot11RTSSuccessCount 3 59145 NULL nohasharray
+framebuffer_alloc_59145 framebuffer_alloc 1 59145 &print_devstats_dot11RTSSuccessCount_59145
+radeon_compat_ioctl_59150 radeon_compat_ioctl 2 59150 NULL
+pvr2_hdw_report_clients_59152 pvr2_hdw_report_clients 3 59152 NULL
+setup_window_59178 setup_window 4-2-5-7 59178 NULL
+ocfs2_move_extent_59187 ocfs2_move_extent 3 59187 NULL
+xfs_iext_realloc_indirect_59211 xfs_iext_realloc_indirect 2 59211 NULL
+fast_rx_path_59214 fast_rx_path 3 59214 NULL
+inftl_partscan_59216 inftl_partscan 0 59216 NULL
+skb_transport_header_59223 skb_transport_header 0 59223 NULL
+dt3155_read_59226 dt3155_read 3 59226 NULL
+paging64_gpte_to_gfn_lvl_59229 paging64_gpte_to_gfn_lvl 0-1-2 59229 NULL
+tty_prepare_flip_string_flags_59240 tty_prepare_flip_string_flags 4 59240 NULL
+solo_v4l2_read_59247 solo_v4l2_read 3 59247 NULL
+nla_len_59258 nla_len 0 59258 NULL
+btrfs_insert_dir_item_59304 btrfs_insert_dir_item 4 59304 NULL
+fd_copyout_59323 fd_copyout 3 59323 NULL
+read_9287_modal_eeprom_59327 read_9287_modal_eeprom 3 59327 NULL
+rx_defrag_in_process_called_read_59338 rx_defrag_in_process_called_read 3 59338 NULL
+paging64_get_level1_sp_gpa_59346 paging64_get_level1_sp_gpa 0 59346 NULL nohasharray
+xfs_attrmulti_attr_set_59346 xfs_attrmulti_attr_set 4 59346 &paging64_get_level1_sp_gpa_59346
+xfs_dir2_sf_entsize_59366 xfs_dir2_sf_entsize 0-2 59366 NULL
+pvr2_debugifc_print_info_59380 pvr2_debugifc_print_info 3 59380 NULL
+fc_frame_alloc_fill_59394 fc_frame_alloc_fill 2 59394 NULL
+vxge_hw_ring_rxds_per_block_get_59425 vxge_hw_ring_rxds_per_block_get 0 59425 NULL
+squashfs_read_data_59440 squashfs_read_data 6 59440 NULL
+fs_path_ensure_buf_59445 fs_path_ensure_buf 2 59445 NULL
+descriptor_loc_59446 descriptor_loc 3 59446 NULL
+do_compat_semctl_59449 do_compat_semctl 4 59449 NULL
+virtqueue_add_buf_59470 virtqueue_add_buf 3-4 59470 NULL
+ib_copy_from_udata_59502 ib_copy_from_udata 3 59502 NULL
+nfsd_nrpools_59503 nfsd_nrpools 0 59503 NULL
+rds_pin_pages_59507 rds_pin_pages 0-1-2 59507 NULL
+mpi_get_nbits_59551 mpi_get_nbits 0 59551 NULL
+tunables_write_59563 tunables_write 3 59563 NULL
+memdup_user_59590 memdup_user 2 59590 NULL
+tps6586x_irq_get_virq_59601 tps6586x_irq_get_virq 2 59601 NULL
+mem_fwlog_free_mem_blks_read_59616 mem_fwlog_free_mem_blks_read 3 59616 NULL
+mtrr_write_59622 mtrr_write 3 59622 NULL
+find_first_zero_bit_59636 find_first_zero_bit 0-2 59636 NULL
+ubifs_setxattr_59650 ubifs_setxattr 4 59650 NULL nohasharray
+hidraw_read_59650 hidraw_read 3 59650 &ubifs_setxattr_59650
+v9fs_xattr_set_acl_59651 v9fs_xattr_set_acl 4 59651 NULL
+__devcgroup_check_permission_59665 __devcgroup_check_permission 0 59665 NULL
+alloc_dca_provider_59670 alloc_dca_provider 2 59670 NULL
+can_nocow_odirect_59681 can_nocow_odirect 3 59681 NULL
+sriov_enable_59689 sriov_enable 2 59689 NULL
+mic_calc_failure_read_59700 mic_calc_failure_read 3 59700 NULL
+prism2_info_scanresults_59729 prism2_info_scanresults 3 59729 NULL
+ieee80211_if_read_fwded_unicast_59740 ieee80211_if_read_fwded_unicast 3 59740 NULL
+qib_decode_7220_sdma_errs_59745 qib_decode_7220_sdma_errs 4 59745 NULL
+strnlen_59746 strnlen 0 59746 NULL
+sctp_manip_pkt_59749 sctp_manip_pkt 4 59749 NULL
+ext3_acl_count_59754 ext3_acl_count 0-1 59754 NULL
+long_retry_limit_read_59766 long_retry_limit_read 3 59766 NULL
+venus_remove_59781 venus_remove 4 59781 NULL
+ipw_write_59807 ipw_write 3 59807 NULL
+rtllib_wx_set_gen_ie_59808 rtllib_wx_set_gen_ie 3 59808 NULL
+scsi_init_shared_tag_map_59812 scsi_init_shared_tag_map 2 59812 NULL
+ieee80211_if_read_dot11MeshHWMPmaxPREQretries_59829 ieee80211_if_read_dot11MeshHWMPmaxPREQretries 3 59829 NULL
+gspca_dev_probe2_59833 gspca_dev_probe2 4 59833 NULL
+regmap_raw_write_async_59849 regmap_raw_write_async 2-4 59849 NULL
+pvr2_ioread_set_sync_key_59882 pvr2_ioread_set_sync_key 3 59882 NULL
+shmem_zero_setup_59885 shmem_zero_setup 0 59885 NULL
+ffs_prepare_buffer_59892 ffs_prepare_buffer 2 59892 NULL
+swiotlb_map_page_59909 swiotlb_map_page 3 59909 NULL
+il_dbgfs_rxon_flags_read_59950 il_dbgfs_rxon_flags_read 3 59950 NULL nohasharray
+dapm_widget_power_read_file_59950 dapm_widget_power_read_file 3 59950 &il_dbgfs_rxon_flags_read_59950
+lookup_node_59953 lookup_node 2 59953 NULL
+il_dbgfs_missed_beacon_read_59956 il_dbgfs_missed_beacon_read 3 59956 NULL nohasharray
+compat_ipmi_ioctl_59956 compat_ipmi_ioctl 3 59956 &il_dbgfs_missed_beacon_read_59956
+kvm_set_cr3_59965 kvm_set_cr3 2 59965 NULL
+fb_getput_cmap_59971 fb_getput_cmap 3 59971 NULL
+__arch_hweight16_59975 __arch_hweight16 0 59975 NULL
+osd_req_read_kern_59990 osd_req_read_kern 5 59990 NULL
+ghash_async_setkey_60001 ghash_async_setkey 3 60001 NULL
+ieee80211_if_fmt_dot11MeshAwakeWindowDuration_60006 ieee80211_if_fmt_dot11MeshAwakeWindowDuration 3 60006 NULL
+rawsock_sendmsg_60010 rawsock_sendmsg 4 60010 NULL
+mthca_init_cq_60011 mthca_init_cq 2 60011 NULL
+register_device_60015 register_device 2-3 60015 NULL
+osd_req_list_dev_partitions_60027 osd_req_list_dev_partitions 4 60027 NULL
+xlog_bread_offset_60030 xlog_bread_offset 3 60030 NULL
+sys_sched_getaffinity_60033 sys_sched_getaffinity 2 60033 NULL
+bio_integrity_hw_sectors_60039 bio_integrity_hw_sectors 0-2 60039 NULL
+do_ip6t_set_ctl_60040 do_ip6t_set_ctl 4 60040 NULL
+pin_2_irq_60050 pin_2_irq 0-3 60050 NULL nohasharray
+vcs_size_60050 vcs_size 0 60050 &pin_2_irq_60050
+gru_alloc_gts_60056 gru_alloc_gts 3-2 60056 NULL
+compat_writev_60063 compat_writev 3 60063 NULL
+ieee80211_build_probe_req_60064 ieee80211_build_probe_req 6-8 60064 NULL
+c4iw_num_stags_60073 c4iw_num_stags 0 60073 NULL
+mp_register_gsi_60079 mp_register_gsi 2 60079 NULL
+rxrpc_kernel_send_data_60083 rxrpc_kernel_send_data 3 60083 NULL
+ieee80211_if_fmt_fwded_frames_60103 ieee80211_if_fmt_fwded_frames 3 60103 NULL
+ttm_bo_kmap_60118 ttm_bo_kmap 3-2 60118 NULL
+jmb38x_ms_count_slots_60164 jmb38x_ms_count_slots 0 60164 NULL
+init_state_60165 init_state 2 60165 NULL
+sg_build_sgat_60179 sg_build_sgat 3 60179 NULL nohasharray
+jffs2_alloc_full_dirent_60179 jffs2_alloc_full_dirent 1 60179 &sg_build_sgat_60179
+rx_rx_tkip_replays_read_60193 rx_rx_tkip_replays_read 3 60193 NULL
+svc_compat_ioctl_60194 svc_compat_ioctl 3 60194 NULL
+ib_send_cm_mra_60202 ib_send_cm_mra 4 60202 NULL nohasharray
+qib_reg_phys_mr_60202 qib_reg_phys_mr 3 60202 &ib_send_cm_mra_60202
+set_tap_pfs_60203 set_tap_pfs 3 60203 NULL
+ieee80211_mgmt_tx_60209 ieee80211_mgmt_tx 7 60209 NULL
+btrfs_get_token_16_60220 btrfs_get_token_16 0 60220 NULL
+arizona_map_irq_60230 arizona_map_irq 2 60230 NULL nohasharray
+__phys_addr_nodebug_60230 __phys_addr_nodebug 0-1 60230 &arizona_map_irq_60230
+wm831x_irq_60254 wm831x_irq 2 60254 NULL
+compat_sys_fcntl64_60256 compat_sys_fcntl64 3 60256 NULL
+printer_write_60276 printer_write 3 60276 NULL
+__pskb_pull_tail_60287 __pskb_pull_tail 2 60287 NULL
+do_xip_mapping_read_60297 do_xip_mapping_read 5 60297 NULL
+getDataLength_60301 getDataLength 0 60301 NULL
+ceph_parse_server_name_60318 ceph_parse_server_name 2 60318 NULL
+__kfifo_from_user_r_60345 __kfifo_from_user_r 3-5 60345 NULL
+dccp_setsockopt_60367 dccp_setsockopt 5 60367 NULL
+ubi_eba_atomic_leb_change_60379 ubi_eba_atomic_leb_change 5 60379 NULL
+instruction_pointer_60384 instruction_pointer 0 60384 NULL
+mthca_alloc_resize_buf_60394 mthca_alloc_resize_buf 3 60394 NULL
+ocfs2_zero_extend_60396 ocfs2_zero_extend 3 60396 NULL
+driver_names_read_60399 driver_names_read 3 60399 NULL
+paging32_walk_addr_generic_60415 paging32_walk_addr_generic 4 60415 NULL
+simple_alloc_urb_60420 simple_alloc_urb 3 60420 NULL
+excessive_retries_read_60425 excessive_retries_read 3 60425 NULL
+tstats_write_60432 tstats_write 3 60432 NULL nohasharray
+kmalloc_60432 kmalloc 1 60432 &tstats_write_60432
+tipc_buf_acquire_60437 tipc_buf_acquire 1 60437 NULL
+rx_data_60442 rx_data 4 60442 NULL
+tcf_csum_ipv4_igmp_60446 tcf_csum_ipv4_igmp 3 60446 NULL
+snd_hda_get_num_raw_conns_60462 snd_hda_get_num_raw_conns 0 60462 NULL
+crypto_shash_setkey_60483 crypto_shash_setkey 3 60483 NULL
+ath_tx_init_60515 ath_tx_init 2 60515 NULL
+hysdn_sched_rx_60533 hysdn_sched_rx 3 60533 NULL
+v9fs_fid_readn_60544 v9fs_fid_readn 4 60544 NULL
+nonpaging_map_60551 nonpaging_map 4 60551 NULL
+skb_transport_offset_60619 skb_transport_offset 0 60619 NULL
+wl1273_fm_fops_write_60621 wl1273_fm_fops_write 3 60621 NULL
+acl_alloc_stack_init_60630 acl_alloc_stack_init 1 60630 NULL
+ubifs_recover_leb_60639 ubifs_recover_leb 3 60639 NULL
+fb_get_fscreeninfo_60640 fb_get_fscreeninfo 3 60640 NULL
+if_sdio_host_to_card_60666 if_sdio_host_to_card 4 60666 NULL
+ieee80211_if_read_dot11MeshConfirmTimeout_60670 ieee80211_if_read_dot11MeshConfirmTimeout 3 60670 NULL
+read_vbt_r10_60679 read_vbt_r10 1 60679 NULL
+init_data_container_60709 init_data_container 1 60709 NULL
+snd_ice1712_ds_read_60754 snd_ice1712_ds_read 0 60754 NULL
+raid_status_60755 raid_status 5 60755 NULL
+sel_write_checkreqprot_60774 sel_write_checkreqprot 3 60774 NULL
+opticon_write_60775 opticon_write 4 60775 NULL
+acl_alloc_num_60778 acl_alloc_num 1-2 60778 NULL
+snd_pcm_oss_readv3_60792 snd_pcm_oss_readv3 3 60792 NULL
+pwr_tx_with_ps_read_60851 pwr_tx_with_ps_read 3 60851 NULL
+alloc_buf_60864 alloc_buf 3-2 60864 NULL
+generic_writepages_60871 generic_writepages 0 60871 NULL
+ext4_update_inline_data_60888 ext4_update_inline_data 3 60888 NULL
+iio_debugfs_read_reg_60908 iio_debugfs_read_reg 3 60908 NULL
+mgt_set_varlen_60916 mgt_set_varlen 4 60916 NULL
+scrub_chunk_60926 scrub_chunk 5 60926 NULL
+sys_mlock_60932 sys_mlock 1 60932 NULL
+pti_char_write_60960 pti_char_write 3 60960 NULL
+mwifiex_alloc_sdio_mpa_buffers_60961 mwifiex_alloc_sdio_mpa_buffers 2-3 60961 NULL
+__a2mp_build_60987 __a2mp_build 3 60987 NULL
+hsc_msg_alloc_60990 hsc_msg_alloc 1 60990 NULL
+ath6kl_lrssi_roam_read_61022 ath6kl_lrssi_roam_read 3 61022 NULL
+symtab_init_61050 symtab_init 2 61050 NULL
+fuse_send_write_61053 fuse_send_write 0 61053 NULL
+bitmap_scnlistprintf_61062 bitmap_scnlistprintf 0-4-2 61062 NULL
+ahash_align_buffer_size_61070 ahash_align_buffer_size 0-1-2 61070 NULL
+get_derived_key_61100 get_derived_key 4 61100 NULL
+alloc_chrdev_region_61112 alloc_chrdev_region 0 61112 NULL
+p80211_headerlen_61119 p80211_headerlen 0 61119 NULL nohasharray
+__probe_kernel_read_61119 __probe_kernel_read 3 61119 &p80211_headerlen_61119
+vmemmap_alloc_block_buf_61126 vmemmap_alloc_block_buf 1 61126 NULL
+afs_proc_cells_write_61139 afs_proc_cells_write 3 61139 NULL
+__vmalloc_61168 __vmalloc 1 61168 NULL
+event_oom_late_read_61175 event_oom_late_read 3 61175 NULL nohasharray
+pair_device_61175 pair_device 4 61175 &event_oom_late_read_61175
+sys_lsetxattr_61177 sys_lsetxattr 4 61177 NULL
+arch_hibernation_header_save_61212 arch_hibernation_header_save 0 61212 NULL
+smk_read_ambient_61220 smk_read_ambient 3 61220 NULL
+btrfs_bio_alloc_61270 btrfs_bio_alloc 3 61270 NULL
+vortex_adbdma_getlinearpos_61283 vortex_adbdma_getlinearpos 0 61283 NULL
+sys_add_key_61288 sys_add_key 4 61288 NULL
+ext4_issue_discard_61305 ext4_issue_discard 2 61305 NULL
+xfrm_user_sec_ctx_size_61320 xfrm_user_sec_ctx_size 0 61320 NULL
+st5481_setup_isocpipes_61340 st5481_setup_isocpipes 6-4 61340 NULL
+rx_rx_wa_ba_not_expected_read_61341 rx_rx_wa_ba_not_expected_read 3 61341 NULL
+f1x_map_sysaddr_to_csrow_61344 f1x_map_sysaddr_to_csrow 2 61344 NULL
+debug_debug4_read_61367 debug_debug4_read 3 61367 NULL
+sys_ptrace_61369 sys_ptrace 3 61369 NULL
+change_xattr_61390 change_xattr 5 61390 NULL
+size_entry_mwt_61400 size_entry_mwt 0 61400 NULL
+dma_ops_area_alloc_61440 dma_ops_area_alloc 3-4-5 61440 NULL
+tc3589x_irq_unmap_61447 tc3589x_irq_unmap 2 61447 NULL
+unix_stream_sendmsg_61455 unix_stream_sendmsg 4 61455 NULL
+snd_pcm_lib_writev_transfer_61483 snd_pcm_lib_writev_transfer 4-2-5 61483 NULL
+btrfs_item_size_61485 btrfs_item_size 0 61485 NULL
+erst_errno_61526 erst_errno 0 61526 NULL
+ntfs_attr_lookup_61539 ntfs_attr_lookup 0 61539 NULL
+o2hb_pop_count_61553 o2hb_pop_count 2 61553 NULL
+dvb_net_ioctl_61559 dvb_net_ioctl 2 61559 NULL
+ieee80211_if_read_rc_rateidx_mask_2ghz_61570 ieee80211_if_read_rc_rateidx_mask_2ghz 3 61570 NULL
+seq_open_private_61589 seq_open_private 3 61589 NULL
+__get_vm_area_61599 __get_vm_area 1 61599 NULL
+nfs4_init_uniform_client_string_61601 nfs4_init_uniform_client_string 3 61601 NULL
+ncp_compat_ioctl_61608 ncp_compat_ioctl 3 61608 NULL
+configfs_write_file_61621 configfs_write_file 3 61621 NULL
+ieee80211_if_fmt_hw_queues_61629 ieee80211_if_fmt_hw_queues 3 61629 NULL
+i2o_parm_table_get_61635 i2o_parm_table_get 6 61635 NULL
+snd_pcm_oss_read3_61643 snd_pcm_oss_read3 0-3 61643 NULL
+resize_stripes_61650 resize_stripes 2 61650 NULL
+ttm_page_pool_free_61661 ttm_page_pool_free 2 61661 NULL
+insert_one_name_61668 insert_one_name 7 61668 NULL
+lock_loop_61681 lock_loop 1 61681 NULL
+filter_read_61692 filter_read 3 61692 NULL
+iov_length_61716 iov_length 0 61716 NULL
+fragmentation_threshold_read_61718 fragmentation_threshold_read 3 61718 NULL
+read_file_interrupt_61742 read_file_interrupt 3 61742 NULL nohasharray
+read_file_regval_61742 read_file_regval 3 61742 &read_file_interrupt_61742
+batadv_dat_snoop_incoming_arp_reply_61801 batadv_dat_snoop_incoming_arp_reply 3 61801 NULL
+tps80031_irq_init_61830 tps80031_irq_init 3 61830 NULL
+bfad_debugfs_write_regwr_61841 bfad_debugfs_write_regwr 3 61841 NULL
+fs_path_prepare_for_add_61854 fs_path_prepare_for_add 2 61854 NULL
+evdev_compute_buffer_size_61863 evdev_compute_buffer_size 0 61863 NULL
+get_fw_name_61874 get_fw_name 3 61874 NULL
+free_init_pages_61875 free_init_pages 2 61875 NULL
+twl4030_sih_setup_61878 twl4030_sih_setup 3 61878 NULL
+ieee80211_rtl_auth_challenge_61897 ieee80211_rtl_auth_challenge 3 61897 NULL
+ax25_addr_size_61899 ax25_addr_size 0 61899 NULL nohasharray
+cxgb4_pktgl_to_skb_61899 cxgb4_pktgl_to_skb 2 61899 &ax25_addr_size_61899
+clear_refs_write_61904 clear_refs_write 3 61904 NULL
+rx_filter_arp_filter_read_61914 rx_filter_arp_filter_read 3 61914 NULL
+au0828_init_isoc_61917 au0828_init_isoc 3-2 61917 NULL
+sctp_sendmsg_61919 sctp_sendmsg 4 61919 NULL
+send_bulk_static_data_61932 send_bulk_static_data 3 61932 NULL
+gfn_to_pfn_memslot_atomic_61947 gfn_to_pfn_memslot_atomic 2 61947 NULL
+il4965_ucode_rx_stats_read_61948 il4965_ucode_rx_stats_read 3 61948 NULL
+squashfs_read_id_index_table_61961 squashfs_read_id_index_table 4 61961 NULL
+mlx4_alloc_mtt_range_61966 mlx4_alloc_mtt_range 2 61966 NULL
+ocfs2_quota_write_61972 ocfs2_quota_write 5-4 61972 NULL
+cow_file_range_61979 cow_file_range 3 61979 NULL
+module_alloc_exec_61991 module_alloc_exec 1 61991 NULL
+virtnet_send_command_61993 virtnet_send_command 5-6 61993 NULL
+xt_compat_match_offset_62011 xt_compat_match_offset 0 62011 NULL
+jffs2_do_unlink_62020 jffs2_do_unlink 4 62020 NULL
+pmcraid_build_passthrough_ioadls_62034 pmcraid_build_passthrough_ioadls 2 62034 NULL
+ppp_tx_cp_62044 ppp_tx_cp 5 62044 NULL
+sctp_user_addto_chunk_62047 sctp_user_addto_chunk 2-3 62047 NULL
+do_pselect_62061 do_pselect 1 62061 NULL
+pcpu_alloc_bootmem_62074 pcpu_alloc_bootmem 2-3 62074 NULL
+get_domain_for_dev_62099 get_domain_for_dev 2 62099 NULL
+ipath_user_sdma_pin_pages_62100 ipath_user_sdma_pin_pages 3-5 62100 NULL
+jffs2_security_setxattr_62107 jffs2_security_setxattr 4 62107 NULL
+llc_ui_header_len_62131 llc_ui_header_len 0 62131 NULL
+qib_diag_write_62133 qib_diag_write 3 62133 NULL
+ql_status_62135 ql_status 5 62135 NULL
+video_usercopy_62151 video_usercopy 2 62151 NULL
+prism54_wpa_bss_ie_get_62173 prism54_wpa_bss_ie_get 0 62173 NULL
+alloc_upcall_62186 alloc_upcall 2 62186 NULL
+btrfs_xattr_acl_set_62203 btrfs_xattr_acl_set 4 62203 NULL
+sock_kmalloc_62205 sock_kmalloc 2 62205 NULL
+nfsd_read_file_62241 nfsd_read_file 6 62241 NULL
+allocate_partition_62245 allocate_partition 4 62245 NULL
+__qib_get_user_pages_62287 __qib_get_user_pages 1-2 62287 NULL
+il_dbgfs_sram_read_62296 il_dbgfs_sram_read 3 62296 NULL
+sparse_early_usemaps_alloc_pgdat_section_62304 sparse_early_usemaps_alloc_pgdat_section 2 62304 NULL
+subsystem_filter_read_62310 subsystem_filter_read 3 62310 NULL
+udf_sb_alloc_partition_maps_62313 udf_sb_alloc_partition_maps 2 62313 NULL
+Wb35Reg_BurstWrite_62327 Wb35Reg_BurstWrite 4 62327 NULL
+subseq_list_62332 subseq_list 3-0 62332 NULL
+flash_write_62354 flash_write 3 62354 NULL
+set_wd_exp_mode_pfs_62372 set_wd_exp_mode_pfs 3 62372 NULL
+twl_get_num_slaves_62386 twl_get_num_slaves 0 62386 NULL
+rx_rx_timeout_read_62389 rx_rx_timeout_read 3 62389 NULL
+altera_irscan_62396 altera_irscan 2 62396 NULL
+set_ssp_62411 set_ssp 4 62411 NULL
+unmap_single_62423 unmap_single 2 62423 NULL
+netdev_alloc_skb_62437 netdev_alloc_skb 2 62437 NULL
+e1000_check_copybreak_62448 e1000_check_copybreak 3 62448 NULL
+ip_vs_icmp_xmit_v6_62477 ip_vs_icmp_xmit_v6 4 62477 NULL
+ceph_dns_resolve_name_62488 ceph_dns_resolve_name 2 62488 NULL
+remove_mapping_62491 remove_mapping 2 62491 NULL
+mlx4_en_create_rx_ring_62498 mlx4_en_create_rx_ring 3 62498 NULL
+ext_rts51x_sd_execute_read_data_62501 ext_rts51x_sd_execute_read_data 9 62501 NULL
+pep_sendmsg_62524 pep_sendmsg 4 62524 NULL nohasharray
+i915_next_seqno_read_62524 i915_next_seqno_read 3 62524 &pep_sendmsg_62524
+test_iso_queue_62534 test_iso_queue 5 62534 NULL
+debugfs_read_62535 debugfs_read 3 62535 NULL
+sco_sock_sendmsg_62542 sco_sock_sendmsg 4 62542 NULL
+qib_refresh_qsfp_cache_62547 qib_refresh_qsfp_cache 0 62547 NULL
+xfrm_user_policy_62573 xfrm_user_policy 4 62573 NULL
+get_subdir_62581 get_subdir 3 62581 NULL
+prism2_send_mgmt_62605 prism2_send_mgmt 4 62605 NULL nohasharray
+nfsd_vfs_read_62605 nfsd_vfs_read 6 62605 &prism2_send_mgmt_62605
+iommu_area_alloc_62619 iommu_area_alloc 2-3-4-7 62619 NULL
+ems_pcmcia_add_card_62627 ems_pcmcia_add_card 2 62627 NULL
+compat_rangeinfo_62630 compat_rangeinfo 2 62630 NULL
+lpfc_sli4_queue_alloc_62646 lpfc_sli4_queue_alloc 3 62646 NULL
+memblock_alloc_nid_62652 memblock_alloc_nid 1-2 62652 NULL
+ima_file_mmap_62663 ima_file_mmap 0 62663 NULL
+write_62671 write 3 62671 NULL
+printer_req_alloc_62687 printer_req_alloc 2 62687 NULL
+qla4_83xx_rd_reg_62693 qla4_83xx_rd_reg 0 62693 NULL
+ioremap_wc_62695 ioremap_wc 1-2 62695 NULL
+bioset_integrity_create_62708 bioset_integrity_create 2 62708 NULL
+rdm_62719 rdm 0 62719 NULL
+key_replays_read_62746 key_replays_read 3 62746 NULL
+init_chip_wc_pat_62768 init_chip_wc_pat 2 62768 NULL
+ax25_sendmsg_62770 ax25_sendmsg 4 62770 NULL
+page_key_alloc_62771 page_key_alloc 0 62771 NULL
+tracing_total_entries_read_62817 tracing_total_entries_read 3 62817 NULL
+__rounddown_pow_of_two_62836 __rounddown_pow_of_two 0 62836 NULL
+bio_get_nr_vecs_62838 bio_get_nr_vecs 0 62838 NULL
+xlog_recover_add_to_trans_62839 xlog_recover_add_to_trans 4 62839 NULL
+rx_fcs_err_read_62844 rx_fcs_err_read 3 62844 NULL
+set_swbp_62853 set_swbp 3 62853 NULL
+hpi_read_word_62862 hpi_read_word 0 62862 NULL
+aoechr_write_62883 aoechr_write 3 62883 NULL
+resize_info_buffer_62889 resize_info_buffer 2 62889 NULL
+if_spi_host_to_card_62890 if_spi_host_to_card 4 62890 NULL
+mempool_create_slab_pool_62907 mempool_create_slab_pool 1 62907 NULL
+getdqbuf_62908 getdqbuf 1 62908 NULL
+try_async_pf_62914 try_async_pf 3 62914 NULL
+agp_create_user_memory_62955 agp_create_user_memory 1 62955 NULL
+__vb2_perform_fileio_63033 __vb2_perform_fileio 3 63033 NULL
+pipeline_defrag_to_csum_swi_read_63037 pipeline_defrag_to_csum_swi_read 3 63037 NULL
+scsi_host_alloc_63041 scsi_host_alloc 2 63041 NULL
+unlink1_63059 unlink1 3 63059 NULL
+xen_set_nslabs_63066 xen_set_nslabs 0 63066 NULL
+ocfs2_decrease_refcount_63078 ocfs2_decrease_refcount 3 63078 NULL
+sep_prepare_input_output_dma_table_in_dcb_63087 sep_prepare_input_output_dma_table_in_dcb 4-5-2-3 63087 NULL
+iwl_dbgfs_sensitivity_read_63116 iwl_dbgfs_sensitivity_read 3 63116 NULL
+alloc_cblock_63133 alloc_cblock 2 63133 NULL
+ib_send_cm_rtu_63138 ib_send_cm_rtu 3 63138 NULL
+xen_zap_pfn_range_63149 xen_zap_pfn_range 1 63149 NULL
+smk_write_revoke_subj_63173 smk_write_revoke_subj 3 63173 NULL
+vme_master_read_63221 vme_master_read 0 63221 NULL
+module_alloc_update_bounds_rw_63233 module_alloc_update_bounds_rw 1 63233 NULL
+ptp_read_63251 ptp_read 4 63251 NULL
+raid5_resize_63306 raid5_resize 2 63306 NULL
+proc_info_read_63344 proc_info_read 3 63344 NULL
+ps_upsd_max_sptime_read_63362 ps_upsd_max_sptime_read 3 63362 NULL
+idmouse_read_63374 idmouse_read 3 63374 NULL
+edac_pci_alloc_ctl_info_63388 edac_pci_alloc_ctl_info 1 63388 NULL nohasharray
+usbnet_read_cmd_nopm_63388 usbnet_read_cmd_nopm 7 63388 &edac_pci_alloc_ctl_info_63388
+rxpipe_missed_beacon_host_int_trig_rx_data_read_63405 rxpipe_missed_beacon_host_int_trig_rx_data_read 3 63405 NULL
+nouveau_event_create_63411 nouveau_event_create 1 63411 NULL
+l2cap_sock_sendmsg_63427 l2cap_sock_sendmsg 4 63427 NULL
+sep_prepare_input_output_dma_table_63429 sep_prepare_input_output_dma_table 2-4-3 63429 NULL
+kone_send_63435 kone_send 4 63435 NULL
+gfn_to_hva_many_63437 gfn_to_hva_many 0-2 63437 NULL
+nfsd_symlink_63442 nfsd_symlink 6 63442 NULL
+ipv6_is_mld_63461 ipv6_is_mld 3 63461 NULL
+snd_info_entry_write_63474 snd_info_entry_write 3 63474 NULL
+reada_find_extent_63486 reada_find_extent 2 63486 NULL
+read_kcore_63488 read_kcore 3 63488 NULL
+save_hint_63497 save_hint 2 63497 NULL
+snd_pcm_plug_write_transfer_63503 snd_pcm_plug_write_transfer 0-3 63503 NULL
+ubi_more_leb_change_data_63534 ubi_more_leb_change_data 4 63534 NULL
+if_sdio_read_scratch_63540 if_sdio_read_scratch 0 63540 NULL
+append_to_buffer_63550 append_to_buffer 3 63550 NULL
+dbg_leb_write_63555 dbg_leb_write 4-5 63555 NULL nohasharray
+kvm_write_guest_page_63555 kvm_write_guest_page 5-2 63555 &dbg_leb_write_63555
+ubifs_lpt_scan_nolock_63572 ubifs_lpt_scan_nolock 0 63572 NULL
+iwch_reg_user_mr_63575 iwch_reg_user_mr 2-3 63575 NULL
+ocfs2_calc_trunc_pos_63576 ocfs2_calc_trunc_pos 4 63576 NULL
+rproc_alloc_63577 rproc_alloc 5 63577 NULL
+ext3_clear_blocks_63597 ext3_clear_blocks 4-5 63597 NULL
+module_alloc_63630 module_alloc 1 63630 NULL
+ntfs_malloc_nofs_nofail_63631 ntfs_malloc_nofs_nofail 1 63631 NULL
+symbol_build_supp_rates_63634 symbol_build_supp_rates 0 63634 NULL
+_ubh_find_next_zero_bit__63640 _ubh_find_next_zero_bit_ 4-5-3 63640 NULL
+proc_loginuid_write_63648 proc_loginuid_write 3 63648 NULL
+ValidateDSDParamsChecksum_63654 ValidateDSDParamsChecksum 3 63654 NULL
+hidraw_ioctl_63658 hidraw_ioctl 2 63658 NULL
+vbi_read_63673 vbi_read 3 63673 NULL nohasharray
+xen_register_pirq_63673 xen_register_pirq 1-2 63673 &vbi_read_63673
+alloc_tty_driver_63681 alloc_tty_driver 1 63681 NULL
+mkiss_compat_ioctl_63686 mkiss_compat_ioctl 4 63686 NULL
+arizona_irq_map_63709 arizona_irq_map 2 63709 NULL
+nouveau_object_create__63715 nouveau_object_create_ 5 63715 NULL
+btrfs_insert_delayed_dir_index_63720 btrfs_insert_delayed_dir_index 4 63720 NULL
+selinux_secctx_to_secid_63744 selinux_secctx_to_secid 2 63744 NULL
+snd_pcm_oss_read1_63771 snd_pcm_oss_read1 3 63771 NULL
+snd_opl4_mem_proc_read_63774 snd_opl4_mem_proc_read 5 63774 NULL
+spidev_compat_ioctl_63778 spidev_compat_ioctl 2-3 63778 NULL
+snapshot_compat_ioctl_63792 snapshot_compat_ioctl 3 63792 NULL
+kovaplus_sysfs_write_63795 kovaplus_sysfs_write 6 63795 NULL
+mwifiex_11n_create_rx_reorder_tbl_63806 mwifiex_11n_create_rx_reorder_tbl 4 63806 NULL
+copy_nodes_to_user_63807 copy_nodes_to_user 2 63807 NULL
+sel_write_load_63830 sel_write_load 3 63830 NULL
+proc_pid_attr_write_63845 proc_pid_attr_write 3 63845 NULL
+init_map_ipmac_63896 init_map_ipmac 4-3 63896 NULL
+divas_write_63901 divas_write 3 63901 NULL
+xhci_alloc_stream_info_63902 xhci_alloc_stream_info 3 63902 NULL
+uvc_alloc_urb_buffers_63922 uvc_alloc_urb_buffers 0-3-2 63922 NULL
+snd_compr_write_63923 snd_compr_write 3 63923 NULL
+acpi_ev_get_gpe_xrupt_block_63924 acpi_ev_get_gpe_xrupt_block 1 63924 NULL
+tipc_send2port_63935 tipc_send2port 5 63935 NULL
+afs_send_simple_reply_63940 afs_send_simple_reply 3 63940 NULL
+__team_options_register_63941 __team_options_register 3 63941 NULL
+macvtap_recvmsg_63949 macvtap_recvmsg 4 63949 NULL
+ieee80211_if_fmt_rc_rateidx_mcs_mask_2ghz_63968 ieee80211_if_fmt_rc_rateidx_mcs_mask_2ghz 3 63968 NULL
+ieee80211_authentication_req_63973 ieee80211_authentication_req 3 63973 NULL
+diva_xdi_write_63975 diva_xdi_write 4 63975 NULL
+read_file_frameerrors_64001 read_file_frameerrors 3 64001 NULL
+kmemdup_64015 kmemdup 2 64015 NULL
+offset_to_vaddr_64025 offset_to_vaddr 0-2 64025 NULL nohasharray
+tcf_csum_skb_nextlayer_64025 tcf_csum_skb_nextlayer 3 64025 &offset_to_vaddr_64025
+dbAllocDmapLev_64030 dbAllocDmapLev 0 64030 NULL
+resize_async_buffer_64031 resize_async_buffer 4 64031 NULL
+sep_lli_table_secure_dma_64042 sep_lli_table_secure_dma 2-3 64042 NULL
+get_u8_64076 get_u8 0 64076 NULL
+sl_realloc_bufs_64086 sl_realloc_bufs 2 64086 NULL
+vmci_handle_arr_get_size_64088 vmci_handle_arr_get_size 0 64088 NULL
+lbs_highrssi_read_64089 lbs_highrssi_read 3 64089 NULL
+do_load_xattr_datum_64118 do_load_xattr_datum 0 64118 NULL
+ol_quota_entries_per_block_64122 ol_quota_entries_per_block 0 64122 NULL
+ext4_prepare_inline_data_64124 ext4_prepare_inline_data 3 64124 NULL
+init_bch_64130 init_bch 1-2 64130 NULL
+uea_idma_write_64139 uea_idma_write 3 64139 NULL
+ablkcipher_copy_iv_64140 ablkcipher_copy_iv 3 64140 NULL
+dlfb_ops_write_64150 dlfb_ops_write 3 64150 NULL
+__comedi_buf_alloc_64155 __comedi_buf_alloc 3 64155 NULL
+cpumask_scnprintf_64170 cpumask_scnprintf 2 64170 NULL
+read_pulse_64227 read_pulse 0-3 64227 NULL
+header_len_64232 header_len 0 64232 NULL
+redrat3_transmit_ir_64244 redrat3_transmit_ir 3 64244 NULL
+io_capture_transfer_64276 io_capture_transfer 4 64276 NULL
+btrfs_file_extent_offset_64278 btrfs_file_extent_offset 0 64278 NULL
+sta_current_tx_rate_read_64286 sta_current_tx_rate_read 3 64286 NULL
+event_id_read_64288 event_id_read 3 64288 NULL nohasharray
+xfs_dir_cilookup_result_64288 xfs_dir_cilookup_result 3 64288 &event_id_read_64288
+ocfs2_block_check_validate_bhs_64302 ocfs2_block_check_validate_bhs 0 64302 NULL
+error_error_bar_retry_read_64305 error_error_bar_retry_read 3 64305 NULL
+ffz_64324 ffz 0 64324 NULL
+sisusbcon_clear_64329 sisusbcon_clear 4-3-5 64329 NULL
+ts_write_64336 ts_write 3 64336 NULL
+usbtmc_write_64340 usbtmc_write 3 64340 NULL
+do_write_orph_node_64343 do_write_orph_node 2 64343 NULL
+ft1000_read_reg_64352 ft1000_read_reg 0 64352 NULL
+bnx2x_vfop_mcast_cmd_64354 bnx2x_vfop_mcast_cmd 5 64354 NULL
+wlc_phy_loadsampletable_nphy_64367 wlc_phy_loadsampletable_nphy 3 64367 NULL
+ilo_write_64378 ilo_write 3 64378 NULL
+btrfs_map_block_64379 btrfs_map_block 3 64379 NULL
+vmcs_readl_64381 vmcs_readl 0 64381 NULL
+nilfs_alloc_seg_bio_64383 nilfs_alloc_seg_bio 3 64383 NULL
+ir_lirc_transmit_ir_64403 ir_lirc_transmit_ir 3 64403 NULL
+pidlist_allocate_64404 pidlist_allocate 1 64404 NULL
+rx_hdr_overflow_read_64407 rx_hdr_overflow_read 3 64407 NULL
+snd_card_create_64418 snd_card_create 4 64418 NULL nohasharray
+keyctl_get_security_64418 keyctl_get_security 3 64418 &snd_card_create_64418
+nl80211_send_mgmt_64419 nl80211_send_mgmt 7 64419 NULL
+oom_adj_write_64428 oom_adj_write 3 64428 NULL
+ext4_trim_extent_64431 ext4_trim_extent 4 64431 NULL nohasharray
+read_file_spectral_short_repeat_64431 read_file_spectral_short_repeat 3 64431 &ext4_trim_extent_64431
+cap_capable_64462 cap_capable 0 64462 NULL
+ip_vs_create_timeout_table_64478 ip_vs_create_timeout_table 2 64478 NULL
+p54_parse_rssical_64493 p54_parse_rssical 3 64493 NULL
+msg_data_sz_64503 msg_data_sz 0 64503 NULL
+remove_uuid_64505 remove_uuid 4 64505 NULL nohasharray
+handle_abnormal_pfn_64505 handle_abnormal_pfn 3 64505 &remove_uuid_64505
+crypto_blkcipher_alignmask_64520 crypto_blkcipher_alignmask 0 64520 NULL
+opera1_usb_i2c_msgxfer_64521 opera1_usb_i2c_msgxfer 4 64521 NULL
+ses_send_diag_64527 ses_send_diag 4 64527 NULL
+prctl_set_mm_64538 prctl_set_mm 3 64538 NULL
+__spi_sync_64561 __spi_sync 0 64561 NULL
+__apei_exec_run_64563 __apei_exec_run 0 64563 NULL
+fanotify_write_64623 fanotify_write 3 64623 NULL
+to_dblock_64655 to_dblock 0-1 64655 NULL
+regmap_read_debugfs_64658 regmap_read_debugfs 5 64658 NULL
+ocfs2_read_xattr_block_64661 ocfs2_read_xattr_block 0 64661 NULL nohasharray
+tlbflush_read_file_64661 tlbflush_read_file 3 64661 &ocfs2_read_xattr_block_64661
+efx_tsoh_get_buffer_64664 efx_tsoh_get_buffer 3 64664 NULL
+rx_rx_out_of_mpdu_nodes_read_64668 rx_rx_out_of_mpdu_nodes_read 3 64668 NULL
+nr_free_zone_pages_64680 nr_free_zone_pages 0 64680 NULL
+sec_bulk_write_64691 sec_bulk_write 2-3 64691 NULL
+__feat_register_sp_64712 __feat_register_sp 6 64712 NULL
+snd_pcm_oss_capture_position_fixup_64713 snd_pcm_oss_capture_position_fixup 0 64713 NULL
+dapm_bias_read_file_64715 dapm_bias_read_file 3 64715 NULL
+atomic_add_return_64720 atomic_add_return 0-1 64720 NULL
+i2400m_msg_to_dev_64722 i2400m_msg_to_dev 3 64722 NULL
+squashfs_read_inode_lookup_table_64739 squashfs_read_inode_lookup_table 4 64739 NULL
+bio_map_kern_64751 bio_map_kern 3 64751 NULL
+rt2x00debug_write_csr_64753 rt2x00debug_write_csr 3 64753 NULL
+isr_low_rssi_read_64789 isr_low_rssi_read 3 64789 NULL
+nfsctl_transaction_write_64800 nfsctl_transaction_write 3 64800 NULL
+megaraid_change_queue_depth_64815 megaraid_change_queue_depth 2 64815 NULL
+ecryptfs_send_miscdev_64816 ecryptfs_send_miscdev 2 64816 NULL
+vaddr_get_pfn_64818 vaddr_get_pfn 1 64818 NULL
+gfn_to_page_64826 gfn_to_page 2 64826 NULL
+do_kimage_alloc_64827 do_kimage_alloc 3 64827 NULL
+altera_set_dr_pre_64862 altera_set_dr_pre 2 64862 NULL
+gfn_to_pfn_64870 gfn_to_pfn 2 64870 NULL
+ffs_epfile_io_64886 ffs_epfile_io 3 64886 NULL
+ieee80211_if_read_ave_beacon_64924 ieee80211_if_read_ave_beacon 3 64924 NULL
+ubifs_wbuf_write_nolock_64946 ubifs_wbuf_write_nolock 3 64946 NULL
+snd_rawmidi_ioctl_compat_64954 snd_rawmidi_ioctl_compat 3 64954 NULL
+ip_options_get_from_user_64958 ip_options_get_from_user 4 64958 NULL
+acpi_os_install_interrupt_handler_64968 acpi_os_install_interrupt_handler 1 64968 NULL
+traceprobe_probes_write_64969 traceprobe_probes_write 3 64969 NULL
+suspend_dtim_interval_read_64971 suspend_dtim_interval_read 3 64971 NULL
+ext2_group_first_block_no_64972 ext2_group_first_block_no 0-2 64972 NULL
+pskb_pull_65005 pskb_pull 2 65005 NULL
+unifi_write_65012 unifi_write 3 65012 NULL
+crypto_ahash_digestsize_65014 crypto_ahash_digestsize 0 65014 NULL
+nfs_readdata_alloc_65015 nfs_readdata_alloc 2 65015 NULL
+insert_dent_65034 insert_dent 7 65034 NULL
+compat_put_ushort_65040 compat_put_ushort 1 65040 NULL
+brcmf_sdcard_rwdata_65041 brcmf_sdcard_rwdata 5 65041 NULL
+tty_audit_log_65043 tty_audit_log 8 65043 NULL
+compat_cmdtest_65064 compat_cmdtest 2 65064 NULL
+count_run_65072 count_run 0-2-4 65072 NULL nohasharray
+bnx2fc_process_l2_frame_compl_65072 bnx2fc_process_l2_frame_compl 3 65072 &count_run_65072
+__alloc_bootmem_node_high_65076 __alloc_bootmem_node_high 2-3 65076 NULL
+ocfs2_truncate_cluster_pages_65086 ocfs2_truncate_cluster_pages 2 65086 NULL
+ath9k_dump_mci_btcoex_65090 ath9k_dump_mci_btcoex 0 65090 NULL
+ssb_bus_register_65183 ssb_bus_register 3 65183 NULL
+rx_rx_done_read_65217 rx_rx_done_read 3 65217 NULL
+print_endpoint_stat_65232 print_endpoint_stat 3-4-0 65232 NULL
+whci_n_caps_65247 whci_n_caps 0 65247 NULL
+kmem_zalloc_greedy_65268 kmem_zalloc_greedy 3-2 65268 NULL
+kmalloc_parameter_65279 kmalloc_parameter 1 65279 NULL
+compat_core_sys_select_65285 compat_core_sys_select 1 65285 NULL
+mpi_set_buffer_65294 mpi_set_buffer 3 65294 NULL
+redirected_tty_write_65297 redirected_tty_write 3 65297 NULL
+get_var_len_65304 get_var_len 0 65304 NULL
+unpack_array_65318 unpack_array 0 65318 NULL
+pci_vpd_find_tag_65325 pci_vpd_find_tag 0-2 65325 NULL
+dccp_setsockopt_service_65336 dccp_setsockopt_service 4 65336 NULL
+dma_rx_requested_read_65354 dma_rx_requested_read 3 65354 NULL
+batadv_tt_save_orig_buffer_65361 batadv_tt_save_orig_buffer 4 65361 NULL
+alloc_cpu_rmap_65363 alloc_cpu_rmap 1 65363 NULL
+__ext4_new_inode_65370 __ext4_new_inode 5 65370 NULL
+strchr_65372 strchr 0 65372 NULL
+__alloc_bootmem_nopanic_65397 __alloc_bootmem_nopanic 1-2 65397 NULL
+trace_seq_to_user_65398 trace_seq_to_user 3 65398 NULL
+mtd_get_device_size_65400 mtd_get_device_size 0 65400 NULL
+iio_device_add_channel_sysfs_65406 iio_device_add_channel_sysfs 0 65406 NULL
+ocfs2_write_begin_nolock_65410 ocfs2_write_begin_nolock 3-4 65410 NULL
+drm_calloc_large_65421 drm_calloc_large 1-2 65421 NULL
+xpc_kzalloc_cacheline_aligned_65433 xpc_kzalloc_cacheline_aligned 1 65433 NULL
+usb_alloc_coherent_65444 usb_alloc_coherent 2 65444 NULL
+ath_rx_edma_init_65483 ath_rx_edma_init 2 65483 NULL
+dpcm_state_read_file_65489 dpcm_state_read_file 3 65489 NULL
+alloc_dr_65495 alloc_dr 2 65495 NULL
diff --git a/tools/gcc/size_overflow_plugin.c b/tools/gcc/size_overflow_plugin.c
new file mode 100644
index 0000000..9db0d0e
--- /dev/null
+++ b/tools/gcc/size_overflow_plugin.c
@@ -0,0 +1,2114 @@
+/*
+ * Copyright 2011, 2012, 2013 by Emese Revfy <re.emese@gmail.com>
+ * Licensed under the GPL v2, or (at your option) v3
+ *
+ * Homepage:
+ * http://www.grsecurity.net/~ephox/overflow_plugin/
+ *
+ * Documentation:
+ * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
+ *
+ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
+ * with double integer precision (DImode/TImode for 32/64 bit integer types).
+ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
+ *
+ * Usage:
+ * $ gcc -I`gcc -print-file-name=plugin`/include/c-family -I`gcc -print-file-name=plugin`/include -fPIC -shared -O2 -ggdb -Wall -W -o size_overflow_plugin.so size_overflow_plugin.c
+ * $ gcc -fplugin=size_overflow_plugin.so test.c  -O2
+ */
+
+#include "gcc-plugin.h"
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "tree-pass.h"
+#include "intl.h"
+#include "plugin-version.h"
+#include "tm.h"
+#include "toplev.h"
+#include "function.h"
+#include "tree-flow.h"
+#include "plugin.h"
+#include "gimple.h"
+#include "diagnostic.h"
+#include "cfgloop.h"
+
+#if BUILDING_GCC_VERSION >= 4008
+#define TODO_dump_func 0
+#endif
+
+struct size_overflow_hash {
+	const struct size_overflow_hash * const next;
+	const char * const name;
+	const unsigned int param;
+};
+
+#include "size_overflow_hash.h"
+
+enum mark {
+	MARK_NO, MARK_YES, MARK_NOT_INTENTIONAL, MARK_TURN_OFF
+};
+
+enum err_code_conditions {
+	CAST_ONLY, FROM_CONST
+};
+
+static unsigned int call_count = 0;
+
+#define __unused __attribute__((__unused__))
+#define NAME(node) IDENTIFIER_POINTER(DECL_NAME(node))
+#define NAME_LEN(node) IDENTIFIER_LENGTH(DECL_NAME(node))
+#define BEFORE_STMT true
+#define AFTER_STMT false
+#define CREATE_NEW_VAR NULL_TREE
+#define CODES_LIMIT 32
+#define MAX_PARAM 31
+#define MY_STMT GF_PLF_1
+#define NO_CAST_CHECK GF_PLF_2
+#define FROM_ARG true
+#define FROM_RET false
+
+#if BUILDING_GCC_VERSION == 4005
+#define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE)))
+#endif
+
+int plugin_is_GPL_compatible;
+void debug_gimple_stmt(gimple gs);
+
+static tree expand(struct pointer_set_t *visited, tree lhs);
+static enum mark pre_expand(struct pointer_set_t *visited, bool *search_err_code, const_tree lhs);
+static tree report_size_overflow_decl;
+static const_tree const_char_ptr_type_node;
+static unsigned int handle_function(void);
+static void check_size_overflow(gimple stmt, tree size_overflow_type, tree cast_rhs, tree rhs, bool before);
+static tree get_size_overflow_type(gimple stmt, const_tree node);
+static tree dup_assign(struct pointer_set_t *visited, gimple oldstmt, const_tree node, tree rhs1, tree rhs2, tree __unused rhs3);
+static void print_missing_msg(tree func, unsigned int argnum);
+
+static struct plugin_info size_overflow_plugin_info = {
+	.version	= "20130410beta",
+	.help		= "no-size-overflow\tturn off size overflow checking\n",
+};
+
+static tree handle_size_overflow_attribute(tree *node, tree __unused name, tree args, int __unused flags, bool *no_add_attrs)
+{
+	unsigned int arg_count;
+	enum tree_code code = TREE_CODE(*node);
+
+	switch (code) {
+	case FUNCTION_DECL:
+		arg_count = type_num_arguments(TREE_TYPE(*node));
+		break;
+	case FUNCTION_TYPE:
+	case METHOD_TYPE:
+		arg_count = type_num_arguments(*node);
+		break;
+	default:
+		*no_add_attrs = true;
+		error("%s: %qE attribute only applies to functions", __func__, name);
+		return NULL_TREE;
+	}
+
+	for (; args; args = TREE_CHAIN(args)) {
+		tree position = TREE_VALUE(args);
+		if (TREE_CODE(position) != INTEGER_CST || TREE_INT_CST_LOW(position) > arg_count ) {
+			error("%s: parameter %u is outside range.", __func__, (unsigned int)TREE_INT_CST_LOW(position));
+			*no_add_attrs = true;
+		}
+	}
+	return NULL_TREE;
+}
+
+static const char* get_asm_name(tree node)
+{
+	return IDENTIFIER_POINTER(DECL_ASSEMBLER_NAME(node));
+}
+
+static tree handle_intentional_overflow_attribute(tree *node, tree __unused name, tree args, int __unused flags, bool *no_add_attrs)
+{
+	unsigned int arg_count, arg_num;
+	enum tree_code code = TREE_CODE(*node);
+
+	switch (code) {
+	case FUNCTION_DECL:
+		arg_count = type_num_arguments(TREE_TYPE(*node));
+		break;
+	case FUNCTION_TYPE:
+	case METHOD_TYPE:
+		arg_count = type_num_arguments(*node);
+		break;
+	case FIELD_DECL:
+		arg_num = TREE_INT_CST_LOW(TREE_VALUE(args));
+		if (arg_num != 0) {
+			*no_add_attrs = true;
+			error("%s: %qE attribute parameter can only be 0 in structure fields", __func__, name);
+		}
+		return NULL_TREE;
+	default:
+		*no_add_attrs = true;
+		error("%qE attribute only applies to functions", name);
+		return NULL_TREE;
+	}
+
+	if (TREE_INT_CST_HIGH(TREE_VALUE(args)) != 0)
+		return NULL_TREE;
+
+	for (; args; args = TREE_CHAIN(args)) {
+		tree position = TREE_VALUE(args);
+		if (TREE_CODE(position) != INTEGER_CST || TREE_INT_CST_LOW(position) > arg_count ) {
+			error("%s: parameter %u is outside range.", __func__, (unsigned int)TREE_INT_CST_LOW(position));
+			*no_add_attrs = true;
+		}
+	}
+	return NULL_TREE;
+}
+
+static struct attribute_spec size_overflow_attr = {
+	.name				= "size_overflow",
+	.min_length			= 1,
+	.max_length			= -1,
+	.decl_required			= true,
+	.type_required			= false,
+	.function_type_required		= false,
+	.handler			= handle_size_overflow_attribute,
+#if BUILDING_GCC_VERSION >= 4007
+	.affects_type_identity		= false
+#endif
+};
+
+static struct attribute_spec intentional_overflow_attr = {
+	.name				= "intentional_overflow",
+	.min_length			= 1,
+	.max_length			= -1,
+	.decl_required			= true,
+	.type_required			= false,
+	.function_type_required		= false,
+	.handler			= handle_intentional_overflow_attribute,
+#if BUILDING_GCC_VERSION >= 4007
+	.affects_type_identity		= false
+#endif
+};
+
+static void register_attributes(void __unused *event_data, void __unused *data)
+{
+	register_attribute(&size_overflow_attr);
+	register_attribute(&intentional_overflow_attr);
+}
+
+// http://www.team5150.com/~andrew/noncryptohashzoo2~/CrapWow.html
+static unsigned int CrapWow(const char *key, unsigned int len, unsigned int seed)
+{
+#define cwfold( a, b, lo, hi ) { p = (unsigned int)(a) * (unsigned long long)(b); lo ^= (unsigned int)p; hi ^= (unsigned int)(p >> 32); }
+#define cwmixa( in ) { cwfold( in, m, k, h ); }
+#define cwmixb( in ) { cwfold( in, n, h, k ); }
+
+	unsigned int m = 0x57559429;
+	unsigned int n = 0x5052acdb;
+	const unsigned int *key4 = (const unsigned int *)key;
+	unsigned int h = len;
+	unsigned int k = len + seed + n;
+	unsigned long long p;
+
+	while (len >= 8) {
+		cwmixb(key4[0]) cwmixa(key4[1]) key4 += 2;
+		len -= 8;
+	}
+	if (len >= 4) {
+		cwmixb(key4[0]) key4 += 1;
+		len -= 4;
+	}
+	if (len)
+		cwmixa(key4[0] & ((1 << (len * 8)) - 1 ));
+	cwmixb(h ^ (k + n));
+	return k ^ h;
+
+#undef cwfold
+#undef cwmixa
+#undef cwmixb
+}
+
+static inline unsigned int get_hash_num(const char *fndecl, const char *tree_codes, unsigned int len, unsigned int seed)
+{
+	unsigned int fn = CrapWow(fndecl, strlen(fndecl), seed) & 0xffff;
+	unsigned int codes = CrapWow(tree_codes, len, seed) & 0xffff;
+	return fn ^ codes;
+}
+
+static inline tree get_original_function_decl(tree fndecl)
+{
+	if (DECL_ABSTRACT_ORIGIN(fndecl))
+		return DECL_ABSTRACT_ORIGIN(fndecl);
+	return fndecl;
+}
+
+static inline gimple get_def_stmt(const_tree node)
+{
+	gcc_assert(node != NULL_TREE);
+	if (TREE_CODE(node) != SSA_NAME)
+		return NULL;
+	return SSA_NAME_DEF_STMT(node);
+}
+
+static unsigned char get_tree_code(const_tree type)
+{
+	switch (TREE_CODE(type)) {
+	case ARRAY_TYPE:
+		return 0;
+	case BOOLEAN_TYPE:
+		return 1;
+	case ENUMERAL_TYPE:
+		return 2;
+	case FUNCTION_TYPE:
+		return 3;
+	case INTEGER_TYPE:
+		return 4;
+	case POINTER_TYPE:
+		return 5;
+	case RECORD_TYPE:
+		return 6;
+	case UNION_TYPE:
+		return 7;
+	case VOID_TYPE:
+		return 8;
+	case REAL_TYPE:
+		return 9;
+	case VECTOR_TYPE:
+		return 10;
+	case REFERENCE_TYPE:
+		return 11;
+	case OFFSET_TYPE:
+		return 12;
+	case COMPLEX_TYPE:
+		return 13;
+	default:
+		debug_tree((tree)type);
+		gcc_unreachable();
+	}
+}
+
+static size_t add_type_codes(const_tree type, unsigned char *tree_codes, size_t len)
+{
+	gcc_assert(type != NULL_TREE);
+
+	while (type && len < CODES_LIMIT) {
+		tree_codes[len] = get_tree_code(type);
+		len++;
+		type = TREE_TYPE(type);
+	}
+	return len;
+}
+
+static unsigned int get_function_decl(const_tree fndecl, unsigned char *tree_codes)
+{
+	const_tree arg, result, arg_field, type = TREE_TYPE(fndecl);
+	enum tree_code code = TREE_CODE(type);
+	size_t len = 0;
+
+	gcc_assert(code == FUNCTION_TYPE || code == METHOD_TYPE);
+
+	arg = TYPE_ARG_TYPES(type);
+	// skip builtins __builtin_constant_p
+	if (!arg && DECL_BUILT_IN(fndecl))
+		return 0;
+
+	if (TREE_CODE_CLASS(code) == tcc_type)
+		result = type;
+	else
+		result = DECL_RESULT(fndecl);
+
+	gcc_assert(result != NULL_TREE);
+	len = add_type_codes(TREE_TYPE(result), tree_codes, len);
+
+	if (arg == NULL_TREE) {
+		gcc_assert(CODE_CONTAINS_STRUCT(TREE_CODE(fndecl), TS_DECL_NON_COMMON));
+		arg_field = DECL_ARGUMENT_FLD(fndecl);
+		if (arg_field == NULL_TREE)
+			return 0;
+		arg = TREE_TYPE(arg_field);
+		len = add_type_codes(arg, tree_codes, len);
+		gcc_assert(len != 0);
+		return len;
+	}
+
+	gcc_assert(arg != NULL_TREE && TREE_CODE(arg) == TREE_LIST);
+	while (arg && len < CODES_LIMIT) {
+		len = add_type_codes(TREE_VALUE(arg), tree_codes, len);
+		arg = TREE_CHAIN(arg);
+	}
+
+	gcc_assert(len != 0);
+	return len;
+}
+
+static const struct size_overflow_hash *get_function_hash(tree fndecl)
+{
+	unsigned int hash;
+	const struct size_overflow_hash *entry;
+	unsigned char tree_codes[CODES_LIMIT];
+	size_t len;
+	const char *func_name;
+
+	fndecl = get_original_function_decl(fndecl);
+	len = get_function_decl(fndecl, tree_codes);
+	if (len == 0)
+		return NULL;
+
+	func_name = get_asm_name(fndecl);
+	hash = get_hash_num(func_name, (const char*) tree_codes, len, 0);
+
+	entry = size_overflow_hash[hash];
+	while (entry) {
+		if (!strcmp(entry->name, func_name))
+			return entry;
+		entry = entry->next;
+	}
+
+	return NULL;
+}
+
+static bool is_bool(const_tree node)
+{
+	const_tree type;
+
+	if (node == NULL_TREE)
+		return false;
+
+	type = TREE_TYPE(node);
+	if (!INTEGRAL_TYPE_P(type))
+		return false;
+	if (TREE_CODE(type) == BOOLEAN_TYPE)
+		return true;
+	if (TYPE_PRECISION(type) == 1)
+		return true;
+	return false;
+}
+
+static bool skip_types(const_tree var)
+{
+	tree type;
+
+	if (is_gimple_constant(var))
+		return true;
+
+	switch (TREE_CODE(var)) {
+		case ADDR_EXPR:
+#if BUILDING_GCC_VERSION >= 4006
+		case MEM_REF:
+#endif
+		case ARRAY_REF:
+		case BIT_FIELD_REF:
+		case INDIRECT_REF:
+		case TARGET_MEM_REF:
+			return true;
+		case PARM_DECL:
+		case VAR_DECL:
+		case COMPONENT_REF:
+			return false;
+		default:
+			break;
+	}
+
+	gcc_assert(TREE_CODE(var) == SSA_NAME);
+
+	type = TREE_TYPE(var);
+	switch (TREE_CODE(type)) {
+		case INTEGER_TYPE:
+		case ENUMERAL_TYPE:
+			return false;
+		case BOOLEAN_TYPE:
+			return is_bool(var);
+		default:
+			break;
+	}
+
+	gcc_assert(TREE_CODE(type) == POINTER_TYPE);
+
+	type = TREE_TYPE(type);
+	gcc_assert(type != NULL_TREE);
+	switch (TREE_CODE(type)) {
+		case RECORD_TYPE:
+		case POINTER_TYPE:
+		case ARRAY_TYPE:
+			return true;
+		case VOID_TYPE:
+		case INTEGER_TYPE:
+		case UNION_TYPE:
+			return false;
+		default:
+			break;
+	}
+
+	debug_tree((tree)var);
+	gcc_unreachable();
+}
+
+static unsigned int find_arg_number(const_tree arg, tree func)
+{
+	tree var;
+	unsigned int argnum = 1;
+
+	if (TREE_CODE(arg) == SSA_NAME)
+		arg = SSA_NAME_VAR(arg);
+
+	for (var = DECL_ARGUMENTS(func); var; var = TREE_CHAIN(var), argnum++) {
+		if (!operand_equal_p(arg, var, 0) && strcmp(NAME(var), NAME(arg)))
+			continue;
+		if (!skip_types(var))
+			return argnum;
+	}
+
+	return 0;
+}
+
+static tree create_new_var(tree type)
+{
+	tree new_var = create_tmp_var(type, "cicus");
+
+#if BUILDING_GCC_VERSION <= 4007
+	add_referenced_var(new_var);
+	mark_sym_for_renaming(new_var);
+#endif
+	return new_var;
+}
+
+static gimple create_binary_assign(enum tree_code code, gimple stmt, tree rhs1, tree rhs2)
+{
+	gimple assign;
+	gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
+	tree type = TREE_TYPE(rhs1);
+	tree lhs = create_new_var(type);
+
+	gcc_assert(types_compatible_p(type, TREE_TYPE(rhs2)));
+	assign = gimple_build_assign_with_ops(code, lhs, rhs1, rhs2);
+	gimple_set_lhs(assign, make_ssa_name(lhs, assign));
+
+	gsi_insert_before(&gsi, assign, GSI_NEW_STMT);
+	update_stmt(assign);
+	gimple_set_plf(assign, MY_STMT, true);
+	return assign;
+}
+
+static tree cast_a_tree(tree type, tree var)
+{
+	gcc_assert(type != NULL_TREE);
+	gcc_assert(var != NULL_TREE);
+	gcc_assert(fold_convertible_p(type, var));
+
+	return fold_convert(type, var);
+}
+
+static tree get_lhs(const_gimple stmt)
+{
+	switch (gimple_code(stmt)) {
+	case GIMPLE_ASSIGN:
+		return gimple_get_lhs(stmt);
+	case GIMPLE_PHI:
+		return gimple_phi_result(stmt);
+	case GIMPLE_CALL:
+		return gimple_call_lhs(stmt);
+	default:
+		return NULL_TREE;
+	}
+}
+
+static bool skip_cast(tree dst_type, const_tree rhs, bool force)
+{
+	const_gimple def_stmt = get_def_stmt(rhs);
+
+	if (force)
+		return false;
+
+	if (is_gimple_constant(rhs))
+		return false;
+
+	if (!def_stmt || gimple_code(def_stmt) == GIMPLE_NOP)
+		return false;
+
+	if (!types_compatible_p(dst_type, TREE_TYPE(rhs)))
+		return false;
+
+	// DI type can be on 32 bit (from create_assign) but overflow type stays DI
+	if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode))
+		return false;
+
+	return true;
+}
+
+static gimple build_cast_stmt(tree dst_type, tree rhs, tree lhs, gimple_stmt_iterator *gsi, bool before, bool force)
+{
+	gimple assign, def_stmt;
+
+	gcc_assert(dst_type != NULL_TREE && rhs != NULL_TREE);
+	if (gsi_end_p(*gsi) && before == AFTER_STMT)
+		gcc_unreachable();
+
+	def_stmt = get_def_stmt(rhs);
+	if (skip_cast(dst_type, rhs, force) && gimple_plf(def_stmt, MY_STMT))
+		return def_stmt;
+
+	if (lhs == CREATE_NEW_VAR)
+		lhs = create_new_var(dst_type);
+
+	assign = gimple_build_assign(lhs, cast_a_tree(dst_type, rhs));
+
+	if (!gsi_end_p(*gsi)) {
+		location_t loc = gimple_location(gsi_stmt(*gsi));
+		gimple_set_location(assign, loc);
+	}
+
+	gimple_set_lhs(assign, make_ssa_name(lhs, assign));
+
+	if (before)
+		gsi_insert_before(gsi, assign, GSI_NEW_STMT);
+	else
+		gsi_insert_after(gsi, assign, GSI_NEW_STMT);
+	update_stmt(assign);
+	gimple_set_plf(assign, MY_STMT, true);
+
+	return assign;
+}
+
+static tree cast_to_new_size_overflow_type(gimple stmt, tree rhs, tree size_overflow_type, bool before)
+{
+	gimple_stmt_iterator gsi;
+	tree lhs;
+	const_gimple new_stmt;
+
+	if (rhs == NULL_TREE)
+		return NULL_TREE;
+
+	gsi = gsi_for_stmt(stmt);
+	new_stmt = build_cast_stmt(size_overflow_type, rhs, CREATE_NEW_VAR, &gsi, before, false);
+
+	lhs = get_lhs(new_stmt);
+	gcc_assert(lhs != NULL_TREE);
+	return lhs;
+}
+
+static tree cast_to_TI_type(gimple stmt, tree node)
+{
+	gimple_stmt_iterator gsi;
+	gimple cast_stmt;
+	tree type = TREE_TYPE(node);
+
+	if (types_compatible_p(type, intTI_type_node))
+		return node;
+
+	gsi = gsi_for_stmt(stmt);
+	cast_stmt = build_cast_stmt(intTI_type_node, node, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
+	return gimple_get_lhs(cast_stmt);
+}
+
+static void check_function_hash(const_gimple stmt)
+{
+	tree func;
+	const struct size_overflow_hash *hash;
+
+	if (gimple_code(stmt) != GIMPLE_CALL)
+		return;
+
+	func = gimple_call_fndecl(stmt);
+	//fs/xattr.c D.34222_15 = D.34219_14 (dentry_3(D), name_7(D), 0B, 0);
+	if (func == NULL_TREE)
+		return;
+
+	hash = get_function_hash(func);
+	if (!hash)
+		print_missing_msg(func, 0);
+}
+
+static tree create_assign(struct pointer_set_t *visited, gimple oldstmt, tree rhs1, bool before)
+{
+	tree lhs, new_lhs;
+	gimple_stmt_iterator gsi;
+
+	if (rhs1 == NULL_TREE) {
+		debug_gimple_stmt(oldstmt);
+		error("%s: rhs1 is NULL_TREE", __func__);
+		gcc_unreachable();
+	}
+
+	switch (gimple_code(oldstmt)) {
+	case GIMPLE_ASM:
+		lhs = rhs1;
+		break;
+	case GIMPLE_CALL:
+		lhs = gimple_call_lhs(oldstmt);
+		break;
+	case GIMPLE_ASSIGN:
+		lhs = gimple_get_lhs(oldstmt);
+		break;
+	default:
+		debug_gimple_stmt(oldstmt);
+		gcc_unreachable();
+	}
+
+	gsi = gsi_for_stmt(oldstmt);
+	pointer_set_insert(visited, oldstmt);
+	if (lookup_stmt_eh_lp(oldstmt) != 0) {
+		basic_block next_bb, cur_bb;
+		const_edge e;
+
+		gcc_assert(before == false);
+		gcc_assert(stmt_can_throw_internal(oldstmt));
+		gcc_assert(gimple_code(oldstmt) == GIMPLE_CALL);
+		gcc_assert(!gsi_end_p(gsi));
+
+		cur_bb = gimple_bb(oldstmt);
+		next_bb = cur_bb->next_bb;
+		e = find_edge(cur_bb, next_bb);
+		gcc_assert(e != NULL);
+		gcc_assert(e->flags & EDGE_FALLTHRU);
+
+		gsi = gsi_after_labels(next_bb);
+		gcc_assert(!gsi_end_p(gsi));
+
+		before = true;
+		oldstmt = gsi_stmt(gsi);
+	}
+
+	new_lhs = cast_to_new_size_overflow_type(oldstmt, rhs1, get_size_overflow_type(oldstmt, lhs), before);
+	return new_lhs;
+}
+
+static tree dup_assign(struct pointer_set_t *visited, gimple oldstmt, const_tree node, tree rhs1, tree rhs2, tree __unused rhs3)
+{
+	gimple stmt;
+	gimple_stmt_iterator gsi;
+	tree size_overflow_type, new_var, lhs = gimple_get_lhs(oldstmt);
+
+	if (gimple_plf(oldstmt, MY_STMT))
+		return lhs;
+
+	if (gimple_num_ops(oldstmt) != 4 && rhs1 == NULL_TREE) {
+		rhs1 = gimple_assign_rhs1(oldstmt);
+		rhs1 = create_assign(visited, oldstmt, rhs1, BEFORE_STMT);
+	}
+	if (gimple_num_ops(oldstmt) == 3 && rhs2 == NULL_TREE) {
+		rhs2 = gimple_assign_rhs2(oldstmt);
+		rhs2 = create_assign(visited, oldstmt, rhs2, BEFORE_STMT);
+	}
+
+	stmt = gimple_copy(oldstmt);
+	gimple_set_location(stmt, gimple_location(oldstmt));
+	gimple_set_plf(stmt, MY_STMT, true);
+
+	if (gimple_assign_rhs_code(oldstmt) == WIDEN_MULT_EXPR)
+		gimple_assign_set_rhs_code(stmt, MULT_EXPR);
+
+	size_overflow_type = get_size_overflow_type(oldstmt, node);
+
+	new_var = create_new_var(size_overflow_type);
+	new_var = make_ssa_name(new_var, stmt);
+	gimple_set_lhs(stmt, new_var);
+
+	if (rhs1 != NULL_TREE)
+		gimple_assign_set_rhs1(stmt, rhs1);
+
+	if (rhs2 != NULL_TREE)
+		gimple_assign_set_rhs2(stmt, rhs2);
+#if BUILDING_GCC_VERSION >= 4007
+	if (rhs3 != NULL_TREE)
+		gimple_assign_set_rhs3(stmt, rhs3);
+#endif
+	gimple_set_vuse(stmt, gimple_vuse(oldstmt));
+	gimple_set_vdef(stmt, gimple_vdef(oldstmt));
+
+	gsi = gsi_for_stmt(oldstmt);
+	gsi_insert_after(&gsi, stmt, GSI_SAME_STMT);
+	update_stmt(stmt);
+	pointer_set_insert(visited, oldstmt);
+	return gimple_get_lhs(stmt);
+}
+
+static tree cast_parm_decl(tree phi_ssa_name, tree arg, tree size_overflow_type)
+{
+	basic_block first_bb;
+	gimple assign;
+	gimple_stmt_iterator gsi;
+
+	first_bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest;
+	gcc_assert(dom_info_available_p(CDI_DOMINATORS));
+	set_immediate_dominator(CDI_DOMINATORS, first_bb, ENTRY_BLOCK_PTR);
+
+	gsi = gsi_start_bb(first_bb);
+	assign = build_cast_stmt(size_overflow_type, arg, phi_ssa_name, &gsi, BEFORE_STMT, false);
+	return gimple_get_lhs(assign);
+}
+
+static tree use_phi_ssa_name(tree phi_ssa_name, tree new_arg)
+{
+	gimple_stmt_iterator gsi;
+	const_gimple assign;
+	gimple def_stmt = get_def_stmt(new_arg);
+
+	if (gimple_code(def_stmt) == GIMPLE_PHI) {
+		gsi = gsi_after_labels(gimple_bb(def_stmt));
+		assign = build_cast_stmt(TREE_TYPE(new_arg), new_arg, phi_ssa_name, &gsi, BEFORE_STMT, true);
+	} else {
+		gsi = gsi_for_stmt(def_stmt);
+		assign = build_cast_stmt(TREE_TYPE(new_arg), new_arg, phi_ssa_name, &gsi, AFTER_STMT, true);
+	}
+
+	return gimple_get_lhs(assign);
+}
+
+static tree cast_visited_phi_arg(tree phi_ssa_name, tree arg, tree size_overflow_type)
+{
+	basic_block bb;
+	gimple_stmt_iterator gsi;
+	const_gimple assign, def_stmt;
+
+	def_stmt = get_def_stmt(arg);
+	bb = gimple_bb(def_stmt);
+	gcc_assert(bb->index != 0);
+	gsi = gsi_after_labels(bb);
+
+	assign = build_cast_stmt(size_overflow_type, arg, phi_ssa_name, &gsi, BEFORE_STMT, false);
+	return gimple_get_lhs(assign);
+}
+
+static tree create_new_phi_arg(tree phi_ssa_name, tree new_arg, tree arg, gimple oldstmt)
+{
+	tree size_overflow_type;
+	const_gimple def_stmt = get_def_stmt(arg);
+
+	if (phi_ssa_name != NULL_TREE)
+		phi_ssa_name = SSA_NAME_VAR(phi_ssa_name);
+
+	size_overflow_type = get_size_overflow_type(oldstmt, arg);
+
+	if (new_arg != NULL_TREE) {
+		gcc_assert(types_compatible_p(TREE_TYPE(new_arg), size_overflow_type));
+		return use_phi_ssa_name(phi_ssa_name, new_arg);
+	}
+
+	switch(gimple_code(def_stmt)) {
+	case GIMPLE_PHI:
+		return cast_visited_phi_arg(phi_ssa_name, arg, size_overflow_type);
+	case GIMPLE_NOP:
+		return cast_parm_decl(phi_ssa_name, arg, size_overflow_type);
+	default:
+		debug_gimple_stmt((gimple)def_stmt);
+		gcc_unreachable();
+	}
+}
+
+static gimple overflow_create_phi_node(gimple oldstmt, tree result)
+{
+	basic_block bb;
+	gimple phi;
+	gimple_seq seq;
+	gimple_stmt_iterator gsi = gsi_for_stmt(oldstmt);
+
+	bb = gsi_bb(gsi);
+
+	phi = create_phi_node(result, bb);
+	gimple_phi_set_result(phi, make_ssa_name(result, phi));
+	seq = phi_nodes(bb);
+	gsi = gsi_last(seq);
+	gsi_remove(&gsi, false);
+
+	gsi = gsi_for_stmt(oldstmt);
+	gsi_insert_after(&gsi, phi, GSI_NEW_STMT);
+	gimple_set_bb(phi, bb);
+	gimple_set_plf(phi, MY_STMT, true);
+	return phi;
+}
+
+static tree handle_phi(struct pointer_set_t *visited, tree orig_result)
+{
+	gimple new_phi = NULL;
+	gimple oldstmt = get_def_stmt(orig_result);
+	tree phi_ssa_name = NULL_TREE;
+	unsigned int i;
+
+	pointer_set_insert(visited, oldstmt);
+	for (i = 0; i < gimple_phi_num_args(oldstmt); i++) {
+		tree arg, new_arg;
+
+		arg = gimple_phi_arg_def(oldstmt, i);
+
+		new_arg = expand(visited, arg);
+		new_arg = create_new_phi_arg(phi_ssa_name, new_arg, arg, oldstmt);
+		if (i == 0) {
+			phi_ssa_name = new_arg;
+			new_phi = overflow_create_phi_node(oldstmt, SSA_NAME_VAR(phi_ssa_name));
+		}
+
+		gcc_assert(new_phi != NULL);
+		add_phi_arg(new_phi, new_arg, gimple_phi_arg_edge(oldstmt, i), gimple_location(oldstmt));
+	}
+
+	gcc_assert(new_phi != NULL);
+	update_stmt(new_phi);
+	return gimple_phi_result(new_phi);
+}
+
+static tree change_assign_rhs(gimple stmt, const_tree orig_rhs, tree new_rhs)
+{
+	const_gimple assign;
+	gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
+	tree origtype = TREE_TYPE(orig_rhs);
+
+	gcc_assert(gimple_code(stmt) == GIMPLE_ASSIGN);
+
+	assign = build_cast_stmt(origtype, new_rhs, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
+	return gimple_get_lhs(assign);
+}
+
+static bool is_a_cast_and_const_overflow(const_tree no_const_rhs)
+{
+	const_tree rhs1, lhs, rhs1_type, lhs_type;
+	enum machine_mode lhs_mode, rhs_mode;
+	gimple def_stmt = get_def_stmt(no_const_rhs);
+
+	if (!gimple_assign_cast_p(def_stmt))
+		return false;
+
+	rhs1 = gimple_assign_rhs1(def_stmt);
+	lhs = gimple_get_lhs(def_stmt);
+	rhs1_type = TREE_TYPE(rhs1);
+	lhs_type = TREE_TYPE(lhs);
+	rhs_mode = TYPE_MODE(rhs1_type);
+	lhs_mode = TYPE_MODE(lhs_type);
+	if (TYPE_UNSIGNED(lhs_type) == TYPE_UNSIGNED(rhs1_type) || lhs_mode != rhs_mode)
+		return false;
+
+	return true;
+}
+
+static tree create_cast_assign(struct pointer_set_t *visited, gimple stmt)
+{
+	tree rhs1 = gimple_assign_rhs1(stmt);
+	tree lhs = gimple_get_lhs(stmt);
+	const_tree rhs1_type = TREE_TYPE(rhs1);
+	const_tree lhs_type = TREE_TYPE(lhs);
+
+	if (TYPE_UNSIGNED(rhs1_type) == TYPE_UNSIGNED(lhs_type))
+		return create_assign(visited, stmt, lhs, AFTER_STMT);
+
+	return create_assign(visited, stmt, rhs1, AFTER_STMT);
+}
+
+static bool no_uses(tree node)
+{
+	imm_use_iterator imm_iter;
+	use_operand_p use_p;
+
+	FOR_EACH_IMM_USE_FAST(use_p, imm_iter, node) {
+		const_gimple use_stmt = USE_STMT(use_p);
+		if (use_stmt == NULL)
+			return true;
+		if (is_gimple_debug(use_stmt))
+			continue;
+		if (!(gimple_bb(use_stmt)->flags & BB_REACHABLE))
+			continue;
+		return false;
+	}
+	return true;
+}
+
+// 3.8.5 mm/page-writeback.c __ilog2_u64(): ret, uint + uintmax; uint -> int; int max
+static bool is_const_plus_unsigned_signed_truncation(const_tree lhs)
+{
+	tree rhs1, lhs_type, rhs_type, rhs2, not_const_rhs;
+	gimple def_stmt = get_def_stmt(lhs);
+
+	if (!def_stmt || !gimple_assign_cast_p(def_stmt))
+		return false;
+
+	rhs1 = gimple_assign_rhs1(def_stmt);
+	rhs_type = TREE_TYPE(rhs1);
+	lhs_type = TREE_TYPE(lhs);
+	if (TYPE_UNSIGNED(lhs_type) || !TYPE_UNSIGNED(rhs_type))
+		return false;
+	if (TYPE_MODE(lhs_type) != TYPE_MODE(rhs_type))
+		return false;
+
+	def_stmt = get_def_stmt(rhs1);
+	if (!def_stmt || gimple_code(def_stmt) != GIMPLE_ASSIGN || gimple_num_ops(def_stmt) != 3)
+		return false;
+
+	if (gimple_assign_rhs_code(def_stmt) != PLUS_EXPR)
+		return false;
+
+	rhs1 = gimple_assign_rhs1(def_stmt);
+	rhs2 = gimple_assign_rhs2(def_stmt);
+	if (!is_gimple_constant(rhs1) && !is_gimple_constant(rhs2))
+		return false;
+
+	if (is_gimple_constant(rhs2))
+		not_const_rhs = rhs1;
+	else
+		not_const_rhs = rhs2;
+
+	return no_uses(not_const_rhs);
+}
+
+static bool skip_lhs_cast_check(const_gimple stmt)
+{
+	const_tree rhs = gimple_assign_rhs1(stmt);
+	const_gimple def_stmt = get_def_stmt(rhs);
+
+	// 3.8.2 kernel/futex_compat.c compat_exit_robust_list(): get_user() 64 ulong -> int (compat_long_t), int max
+	if (gimple_code(def_stmt) == GIMPLE_ASM)
+		return true;
+
+	if (is_const_plus_unsigned_signed_truncation(rhs))
+		return true;
+
+	return false;
+}
+
+static tree create_cast_overflow_check(struct pointer_set_t *visited, tree new_rhs1, gimple stmt)
+{
+	bool cast_lhs, cast_rhs;
+	tree lhs = gimple_get_lhs(stmt);
+	tree rhs = gimple_assign_rhs1(stmt);
+	const_tree lhs_type = TREE_TYPE(lhs);
+	const_tree rhs_type = TREE_TYPE(rhs);
+	enum machine_mode lhs_mode = TYPE_MODE(lhs_type);
+	enum machine_mode rhs_mode = TYPE_MODE(rhs_type);
+	unsigned int lhs_size = GET_MODE_BITSIZE(lhs_mode);
+	unsigned int rhs_size = GET_MODE_BITSIZE(rhs_mode);
+
+	static bool check_lhs[3][4] = {
+		// ss    su     us     uu
+		{ false, true,  true,  false }, // lhs > rhs
+		{ false, false, false, false }, // lhs = rhs
+		{ true,  true,  true,  true  }, // lhs < rhs
+	};
+
+	static bool check_rhs[3][4] = {
+		// ss    su     us     uu
+		{ true,  false, true,  true  }, // lhs > rhs
+		{ true,  false, true,  true  }, // lhs = rhs
+		{ true,  false, true,  true  }, // lhs < rhs
+	};
+
+	// skip lhs check on signed SI -> HI cast or signed SI -> QI cast !!!!
+	if (rhs_mode == SImode && !TYPE_UNSIGNED(rhs_type) && (lhs_mode == HImode || lhs_mode == QImode))
+		return create_assign(visited, stmt, lhs, AFTER_STMT);
+
+	if (lhs_size > rhs_size) {
+		cast_lhs = check_lhs[0][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
+		cast_rhs = check_rhs[0][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
+	} else if (lhs_size == rhs_size) {
+		cast_lhs = check_lhs[1][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
+		cast_rhs = check_rhs[1][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
+	} else {
+		cast_lhs = check_lhs[2][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
+		cast_rhs = check_rhs[2][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
+	}
+
+	if (!cast_lhs && !cast_rhs)
+		return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
+
+	if (cast_lhs && !skip_lhs_cast_check(stmt))
+		check_size_overflow(stmt, TREE_TYPE(new_rhs1), new_rhs1, lhs, BEFORE_STMT);
+
+	if (cast_rhs)
+		check_size_overflow(stmt, TREE_TYPE(new_rhs1), new_rhs1, rhs, BEFORE_STMT);
+
+	return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
+}
+
+static tree handle_unary_rhs(struct pointer_set_t *visited, gimple stmt)
+{
+	tree rhs1, new_rhs1, lhs = gimple_get_lhs(stmt);
+
+	if (gimple_plf(stmt, MY_STMT))
+		return lhs;
+
+	rhs1 = gimple_assign_rhs1(stmt);
+	if (TREE_CODE(TREE_TYPE(rhs1)) == POINTER_TYPE)
+		return create_assign(visited, stmt, lhs, AFTER_STMT);
+
+	new_rhs1 = expand(visited, rhs1);
+
+	if (new_rhs1 == NULL_TREE)
+		return create_cast_assign(visited, stmt);
+
+	if (gimple_plf(stmt, NO_CAST_CHECK))
+		return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
+
+	if (gimple_assign_rhs_code(stmt) == BIT_NOT_EXPR) {
+		tree size_overflow_type = get_size_overflow_type(stmt, rhs1);
+
+		new_rhs1 = cast_to_new_size_overflow_type(stmt, new_rhs1, size_overflow_type, BEFORE_STMT);
+		check_size_overflow(stmt, size_overflow_type, new_rhs1, rhs1, BEFORE_STMT);
+		return create_assign(visited, stmt, lhs, AFTER_STMT);
+	}
+
+	if (!gimple_assign_cast_p(stmt))
+		return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
+
+	return create_cast_overflow_check(visited, new_rhs1, stmt);
+}
+
+static tree handle_unary_ops(struct pointer_set_t *visited, gimple stmt)
+{
+	tree rhs1, lhs = gimple_get_lhs(stmt);
+	gimple def_stmt = get_def_stmt(lhs);
+
+	gcc_assert(gimple_code(def_stmt) != GIMPLE_NOP);
+	rhs1 = gimple_assign_rhs1(def_stmt);
+
+	if (is_gimple_constant(rhs1))
+		return create_assign(visited, def_stmt, lhs, AFTER_STMT);
+
+	switch (TREE_CODE(rhs1)) {
+	case SSA_NAME:
+		return handle_unary_rhs(visited, def_stmt);
+	case ARRAY_REF:
+	case BIT_FIELD_REF:
+	case ADDR_EXPR:
+	case COMPONENT_REF:
+	case INDIRECT_REF:
+#if BUILDING_GCC_VERSION >= 4006
+	case MEM_REF:
+#endif
+	case TARGET_MEM_REF:
+		return create_assign(visited, def_stmt, lhs, AFTER_STMT);
+	case PARM_DECL:
+	case VAR_DECL:
+		return create_assign(visited, stmt, lhs, AFTER_STMT);
+
+	default:
+		debug_gimple_stmt(def_stmt);
+		debug_tree(rhs1);
+		gcc_unreachable();
+	}
+}
+
+static void insert_cond(basic_block cond_bb, tree arg, enum tree_code cond_code, tree type_value)
+{
+	gimple cond_stmt;
+	gimple_stmt_iterator gsi = gsi_last_bb(cond_bb);
+
+	cond_stmt = gimple_build_cond(cond_code, arg, type_value, NULL_TREE, NULL_TREE);
+	gsi_insert_after(&gsi, cond_stmt, GSI_CONTINUE_LINKING);
+	update_stmt(cond_stmt);
+}
+
+static tree create_string_param(tree string)
+{
+	tree i_type, a_type;
+	const int length = TREE_STRING_LENGTH(string);
+
+	gcc_assert(length > 0);
+
+	i_type = build_index_type(build_int_cst(NULL_TREE, length - 1));
+	a_type = build_array_type(char_type_node, i_type);
+
+	TREE_TYPE(string) = a_type;
+	TREE_CONSTANT(string) = 1;
+	TREE_READONLY(string) = 1;
+
+	return build1(ADDR_EXPR, ptr_type_node, string);
+}
+
+static void insert_cond_result(basic_block bb_true, const_gimple stmt, const_tree arg, bool min)
+{
+	gimple func_stmt;
+	const_gimple def_stmt;
+	const_tree loc_line;
+	tree loc_file, ssa_name, current_func;
+	expanded_location xloc;
+	char *ssa_name_buf;
+	int len;
+	gimple_stmt_iterator gsi = gsi_start_bb(bb_true);
+
+	def_stmt = get_def_stmt(arg);
+	xloc = expand_location(gimple_location(def_stmt));
+
+	if (!gimple_has_location(def_stmt)) {
+		xloc = expand_location(gimple_location(stmt));
+		if (!gimple_has_location(stmt))
+			xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl));
+	}
+
+	loc_line = build_int_cstu(unsigned_type_node, xloc.line);
+
+	loc_file = build_string(strlen(xloc.file) + 1, xloc.file);
+	loc_file = create_string_param(loc_file);
+
+	current_func = build_string(NAME_LEN(current_function_decl) + 1, NAME(current_function_decl));
+	current_func = create_string_param(current_func);
+
+	gcc_assert(DECL_NAME(SSA_NAME_VAR(arg)) != NULL);
+	call_count++;
+	len = asprintf(&ssa_name_buf, "%s_%u %s, count: %u\n", NAME(SSA_NAME_VAR(arg)), SSA_NAME_VERSION(arg), min ? "min" : "max", call_count);
+	gcc_assert(len > 0);
+	ssa_name = build_string(len + 1, ssa_name_buf);
+	free(ssa_name_buf);
+	ssa_name = create_string_param(ssa_name);
+
+	// void report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
+	func_stmt = gimple_build_call(report_size_overflow_decl, 4, loc_file, loc_line, current_func, ssa_name);
+
+	gsi_insert_after(&gsi, func_stmt, GSI_CONTINUE_LINKING);
+}
+
+static void __unused print_the_code_insertions(const_gimple stmt)
+{
+	location_t loc = gimple_location(stmt);
+
+	inform(loc, "Integer size_overflow check applied here.");
+}
+
+static void insert_check_size_overflow(gimple stmt, enum tree_code cond_code, tree arg, tree type_value, bool before, bool min)
+{
+	basic_block cond_bb, join_bb, bb_true;
+	edge e;
+	gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
+
+	cond_bb = gimple_bb(stmt);
+	if (before)
+		gsi_prev(&gsi);
+	if (gsi_end_p(gsi))
+		e = split_block_after_labels(cond_bb);
+	else
+		e = split_block(cond_bb, gsi_stmt(gsi));
+	cond_bb = e->src;
+	join_bb = e->dest;
+	e->flags = EDGE_FALSE_VALUE;
+	e->probability = REG_BR_PROB_BASE;
+
+	bb_true = create_empty_bb(cond_bb);
+	make_edge(cond_bb, bb_true, EDGE_TRUE_VALUE);
+	make_edge(cond_bb, join_bb, EDGE_FALSE_VALUE);
+	make_edge(bb_true, join_bb, EDGE_FALLTHRU);
+
+	gcc_assert(dom_info_available_p(CDI_DOMINATORS));
+	set_immediate_dominator(CDI_DOMINATORS, bb_true, cond_bb);
+	set_immediate_dominator(CDI_DOMINATORS, join_bb, cond_bb);
+
+	if (current_loops != NULL) {
+		gcc_assert(cond_bb->loop_father == join_bb->loop_father);
+		add_bb_to_loop(bb_true, cond_bb->loop_father);
+	}
+
+	insert_cond(cond_bb, arg, cond_code, type_value);
+	insert_cond_result(bb_true, stmt, arg, min);
+
+//	print_the_code_insertions(stmt);
+}
+
+static void check_size_overflow(gimple stmt, tree size_overflow_type, tree cast_rhs, tree rhs, bool before)
+{
+	const_tree rhs_type = TREE_TYPE(rhs);
+	tree cast_rhs_type, type_max_type, type_min_type, type_max, type_min;
+
+	gcc_assert(rhs_type != NULL_TREE);
+	if (TREE_CODE(rhs_type) == POINTER_TYPE)
+		return;
+
+	gcc_assert(TREE_CODE(rhs_type) == INTEGER_TYPE || TREE_CODE(rhs_type) == ENUMERAL_TYPE);
+
+	if (is_const_plus_unsigned_signed_truncation(rhs))
+		return;
+
+	type_max = cast_a_tree(size_overflow_type, TYPE_MAX_VALUE(rhs_type));
+	// typemax (-1) < typemin (0)
+	if (TREE_OVERFLOW(type_max))
+		return;
+
+	type_min = cast_a_tree(size_overflow_type, TYPE_MIN_VALUE(rhs_type));
+
+	cast_rhs_type = TREE_TYPE(cast_rhs);
+	type_max_type = TREE_TYPE(type_max);
+	type_min_type = TREE_TYPE(type_min);
+	gcc_assert(types_compatible_p(cast_rhs_type, type_max_type));
+	gcc_assert(types_compatible_p(type_max_type, type_min_type));
+
+	insert_check_size_overflow(stmt, GT_EXPR, cast_rhs, type_max, before, false);
+	insert_check_size_overflow(stmt, LT_EXPR, cast_rhs, type_min, before, true);
+}
+
+static bool is_a_constant_overflow(const_gimple stmt, const_tree rhs)
+{
+	if (gimple_assign_rhs_code(stmt) == MIN_EXPR)
+		return false;
+	if (!is_gimple_constant(rhs))
+		return false;
+	return true;
+}
+
+static tree get_def_stmt_rhs(const_tree var)
+{
+	tree rhs1, def_stmt_rhs1;
+	gimple rhs1_def_stmt, def_stmt_rhs1_def_stmt, def_stmt;
+
+	def_stmt = get_def_stmt(var);
+	gcc_assert(gimple_code(def_stmt) != GIMPLE_NOP && gimple_plf(def_stmt, MY_STMT) && gimple_assign_cast_p(def_stmt));
+
+	rhs1 = gimple_assign_rhs1(def_stmt);
+	rhs1_def_stmt = get_def_stmt(rhs1);
+	if (!gimple_assign_cast_p(rhs1_def_stmt))
+		return rhs1;
+
+	def_stmt_rhs1 = gimple_assign_rhs1(rhs1_def_stmt);
+	def_stmt_rhs1_def_stmt = get_def_stmt(def_stmt_rhs1);
+
+	switch (gimple_code(def_stmt_rhs1_def_stmt)) {
+	case GIMPLE_CALL:
+	case GIMPLE_NOP:
+	case GIMPLE_ASM:
+	case GIMPLE_PHI:
+		return def_stmt_rhs1;
+	case GIMPLE_ASSIGN:
+		return rhs1;
+	default:
+		debug_gimple_stmt(def_stmt_rhs1_def_stmt);
+		gcc_unreachable();
+	}
+}
+
+static tree handle_intentional_overflow(struct pointer_set_t *visited, bool check_overflow, gimple stmt, tree change_rhs, tree new_rhs2)
+{
+	tree new_rhs, orig_rhs;
+	void (*gimple_assign_set_rhs)(gimple, tree);
+	tree rhs1 = gimple_assign_rhs1(stmt);
+	tree rhs2 = gimple_assign_rhs2(stmt);
+	tree lhs = gimple_get_lhs(stmt);
+
+	if (!check_overflow)
+		return create_assign(visited, stmt, lhs, AFTER_STMT);
+
+	if (change_rhs == NULL_TREE)
+		return create_assign(visited, stmt, lhs, AFTER_STMT);
+
+	if (new_rhs2 == NULL_TREE) {
+		orig_rhs = rhs1;
+		gimple_assign_set_rhs = &gimple_assign_set_rhs1;
+	} else {
+		orig_rhs = rhs2;
+		gimple_assign_set_rhs = &gimple_assign_set_rhs2;
+	}
+
+	check_size_overflow(stmt, TREE_TYPE(change_rhs), change_rhs, orig_rhs, BEFORE_STMT);
+
+	new_rhs = change_assign_rhs(stmt, orig_rhs, change_rhs);
+	gimple_assign_set_rhs(stmt, new_rhs);
+	update_stmt(stmt);
+
+	return create_assign(visited, stmt, lhs, AFTER_STMT);
+}
+
+static bool is_subtraction_special(const_gimple stmt)
+{
+	gimple rhs1_def_stmt, rhs2_def_stmt;
+	const_tree rhs1_def_stmt_rhs1, rhs2_def_stmt_rhs1, rhs1_def_stmt_lhs, rhs2_def_stmt_lhs;
+	enum machine_mode rhs1_def_stmt_rhs1_mode, rhs2_def_stmt_rhs1_mode, rhs1_def_stmt_lhs_mode, rhs2_def_stmt_lhs_mode;
+	const_tree rhs1 = gimple_assign_rhs1(stmt);
+	const_tree rhs2 = gimple_assign_rhs2(stmt);
+
+	if (is_gimple_constant(rhs1) || is_gimple_constant(rhs2))
+		return false;
+
+	gcc_assert(TREE_CODE(rhs1) == SSA_NAME && TREE_CODE(rhs2) == SSA_NAME);
+
+	if (gimple_assign_rhs_code(stmt) != MINUS_EXPR)
+		return false;
+
+	rhs1_def_stmt = get_def_stmt(rhs1);
+	rhs2_def_stmt = get_def_stmt(rhs2);
+	if (!gimple_assign_cast_p(rhs1_def_stmt) || !gimple_assign_cast_p(rhs2_def_stmt))
+		return false;
+
+	rhs1_def_stmt_rhs1 = gimple_assign_rhs1(rhs1_def_stmt);
+	rhs2_def_stmt_rhs1 = gimple_assign_rhs1(rhs2_def_stmt);
+	rhs1_def_stmt_lhs = gimple_get_lhs(rhs1_def_stmt);
+	rhs2_def_stmt_lhs = gimple_get_lhs(rhs2_def_stmt);
+	rhs1_def_stmt_rhs1_mode = TYPE_MODE(TREE_TYPE(rhs1_def_stmt_rhs1));
+	rhs2_def_stmt_rhs1_mode = TYPE_MODE(TREE_TYPE(rhs2_def_stmt_rhs1));
+	rhs1_def_stmt_lhs_mode = TYPE_MODE(TREE_TYPE(rhs1_def_stmt_lhs));
+	rhs2_def_stmt_lhs_mode = TYPE_MODE(TREE_TYPE(rhs2_def_stmt_lhs));
+	if (GET_MODE_BITSIZE(rhs1_def_stmt_rhs1_mode) <= GET_MODE_BITSIZE(rhs1_def_stmt_lhs_mode))
+		return false;
+	if (GET_MODE_BITSIZE(rhs2_def_stmt_rhs1_mode) <= GET_MODE_BITSIZE(rhs2_def_stmt_lhs_mode))
+		return false;
+
+	gimple_set_plf(rhs1_def_stmt, NO_CAST_CHECK, true);
+	gimple_set_plf(rhs2_def_stmt, NO_CAST_CHECK, true);
+	return true;
+}
+
+static tree handle_integer_truncation(struct pointer_set_t *visited, const_tree lhs)
+{
+	tree new_rhs1, new_rhs2;
+	tree new_rhs1_def_stmt_rhs1, new_rhs2_def_stmt_rhs1, new_lhs;
+	gimple assign, stmt = get_def_stmt(lhs);
+	tree rhs1 = gimple_assign_rhs1(stmt);
+	tree rhs2 = gimple_assign_rhs2(stmt);
+
+	if (!is_subtraction_special(stmt))
+		return NULL_TREE;
+
+	new_rhs1 = expand(visited, rhs1);
+	new_rhs2 = expand(visited, rhs2);
+
+	new_rhs1_def_stmt_rhs1 = get_def_stmt_rhs(new_rhs1);
+	new_rhs2_def_stmt_rhs1 = get_def_stmt_rhs(new_rhs2);
+
+	if (!types_compatible_p(TREE_TYPE(new_rhs1_def_stmt_rhs1), TREE_TYPE(new_rhs2_def_stmt_rhs1))) {
+		new_rhs1_def_stmt_rhs1 = cast_to_TI_type(stmt, new_rhs1_def_stmt_rhs1);
+		new_rhs2_def_stmt_rhs1 = cast_to_TI_type(stmt, new_rhs2_def_stmt_rhs1);
+	}
+
+	assign = create_binary_assign(MINUS_EXPR, stmt, new_rhs1_def_stmt_rhs1, new_rhs2_def_stmt_rhs1);
+	new_lhs = gimple_get_lhs(assign);
+	check_size_overflow(assign, TREE_TYPE(new_lhs), new_lhs, rhs1, AFTER_STMT);
+
+	return dup_assign(visited, stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
+}
+
+static bool is_a_neg_overflow(const_gimple stmt, const_tree rhs)
+{
+	const_gimple def_stmt;
+
+	if (TREE_CODE(rhs) != SSA_NAME)
+		return false;
+
+	if (gimple_assign_rhs_code(stmt) != PLUS_EXPR)
+		return false;
+
+	def_stmt = get_def_stmt(rhs);
+	if (gimple_code(def_stmt) != GIMPLE_ASSIGN || gimple_assign_rhs_code(def_stmt) != BIT_NOT_EXPR)
+		return false;
+
+	return true;
+}
+
+static tree handle_binary_ops(struct pointer_set_t *visited, tree lhs)
+{
+	tree rhs1, rhs2, new_lhs;
+	gimple def_stmt = get_def_stmt(lhs);
+	tree new_rhs1 = NULL_TREE;
+	tree new_rhs2 = NULL_TREE;
+
+	rhs1 = gimple_assign_rhs1(def_stmt);
+	rhs2 = gimple_assign_rhs2(def_stmt);
+
+	/* no DImode/TImode division in the 32/64 bit kernel */
+	switch (gimple_assign_rhs_code(def_stmt)) {
+	case RDIV_EXPR:
+	case TRUNC_DIV_EXPR:
+	case CEIL_DIV_EXPR:
+	case FLOOR_DIV_EXPR:
+	case ROUND_DIV_EXPR:
+	case TRUNC_MOD_EXPR:
+	case CEIL_MOD_EXPR:
+	case FLOOR_MOD_EXPR:
+	case ROUND_MOD_EXPR:
+	case EXACT_DIV_EXPR:
+	case POINTER_PLUS_EXPR:
+	case BIT_AND_EXPR:
+		return create_assign(visited, def_stmt, lhs, AFTER_STMT);
+	default:
+		break;
+	}
+
+	new_lhs = handle_integer_truncation(visited, lhs);
+	if (new_lhs != NULL_TREE)
+		return new_lhs;
+
+	if (TREE_CODE(rhs1) == SSA_NAME)
+		new_rhs1 = expand(visited, rhs1);
+	if (TREE_CODE(rhs2) == SSA_NAME)
+		new_rhs2 = expand(visited, rhs2);
+
+	if (is_a_neg_overflow(def_stmt, rhs2))
+		return handle_intentional_overflow(visited, true, def_stmt, new_rhs1, NULL_TREE);
+	if (is_a_neg_overflow(def_stmt, rhs1))
+		return handle_intentional_overflow(visited, true, def_stmt, new_rhs2, new_rhs2);
+
+
+	if (is_a_constant_overflow(def_stmt, rhs2))
+		return handle_intentional_overflow(visited, !is_a_cast_and_const_overflow(rhs1), def_stmt, new_rhs1, NULL_TREE);
+	if (is_a_constant_overflow(def_stmt, rhs1))
+		return handle_intentional_overflow(visited, !is_a_cast_and_const_overflow(rhs2), def_stmt, new_rhs2, new_rhs2);
+
+	return dup_assign(visited, def_stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
+}
+
+#if BUILDING_GCC_VERSION >= 4007
+static tree get_new_rhs(struct pointer_set_t *visited, tree size_overflow_type, tree rhs)
+{
+	if (is_gimple_constant(rhs))
+		return cast_a_tree(size_overflow_type, rhs);
+	if (TREE_CODE(rhs) != SSA_NAME)
+		return NULL_TREE;
+	return expand(visited, rhs);
+}
+
+static tree handle_ternary_ops(struct pointer_set_t *visited, tree lhs)
+{
+	tree rhs1, rhs2, rhs3, new_rhs1, new_rhs2, new_rhs3, size_overflow_type;
+	gimple def_stmt = get_def_stmt(lhs);
+
+	size_overflow_type = get_size_overflow_type(def_stmt, lhs);
+
+	rhs1 = gimple_assign_rhs1(def_stmt);
+	rhs2 = gimple_assign_rhs2(def_stmt);
+	rhs3 = gimple_assign_rhs3(def_stmt);
+	new_rhs1 = get_new_rhs(visited, size_overflow_type, rhs1);
+	new_rhs2 = get_new_rhs(visited, size_overflow_type, rhs2);
+	new_rhs3 = get_new_rhs(visited, size_overflow_type, rhs3);
+
+	return dup_assign(visited, def_stmt, lhs, new_rhs1, new_rhs2, new_rhs3);
+}
+#endif
+
+static tree get_size_overflow_type(gimple stmt, const_tree node)
+{
+	const_tree type;
+	tree new_type;
+
+	gcc_assert(node != NULL_TREE);
+
+	type = TREE_TYPE(node);
+
+	if (gimple_plf(stmt, MY_STMT))
+		return TREE_TYPE(node);
+
+	switch (TYPE_MODE(type)) {
+	case QImode:
+		new_type = intHI_type_node;
+		break;
+	case HImode:
+		new_type = intSI_type_node;
+		break;
+	case SImode:
+		new_type = intDI_type_node;
+		break;
+	case DImode:
+		if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode))
+			new_type = intDI_type_node;
+		else
+			new_type = intTI_type_node;
+		break;
+	default:
+		debug_tree((tree)node);
+		error("%s: unsupported gcc configuration.", __func__);
+		gcc_unreachable();
+	}
+
+	if (TYPE_QUALS(type) != 0)
+		return build_qualified_type(new_type, TYPE_QUALS(type));
+	return new_type;
+}
+
+static tree expand_visited(gimple def_stmt)
+{
+	const_gimple next_stmt;
+	gimple_stmt_iterator gsi;
+	enum gimple_code code = gimple_code(def_stmt);
+
+	if (code == GIMPLE_ASM)
+		return NULL_TREE;
+
+	gsi = gsi_for_stmt(def_stmt);
+	gsi_next(&gsi);
+
+	if (gimple_code(def_stmt) == GIMPLE_PHI && gsi_end_p(gsi))
+		return NULL_TREE;
+	gcc_assert(!gsi_end_p(gsi));
+	next_stmt = gsi_stmt(gsi);
+
+	if (gimple_code(def_stmt) == GIMPLE_PHI && !gimple_plf((gimple)next_stmt, MY_STMT))
+		return NULL_TREE;
+	gcc_assert(gimple_plf((gimple)next_stmt, MY_STMT));
+
+	return get_lhs(next_stmt);
+}
+
+static tree expand(struct pointer_set_t *visited, tree lhs)
+{
+	gimple def_stmt;
+
+	if (skip_types(lhs))
+		return NULL_TREE;
+
+	def_stmt = get_def_stmt(lhs);
+
+	if (!def_stmt || gimple_code(def_stmt) == GIMPLE_NOP)
+		return NULL_TREE;
+
+	if (gimple_plf(def_stmt, MY_STMT))
+		return lhs;
+
+	if (pointer_set_contains(visited, def_stmt))
+		return expand_visited(def_stmt);
+
+	switch (gimple_code(def_stmt)) {
+	case GIMPLE_PHI:
+		return handle_phi(visited, lhs);
+	case GIMPLE_CALL:
+	case GIMPLE_ASM:
+		return create_assign(visited, def_stmt, lhs, AFTER_STMT);
+	case GIMPLE_ASSIGN:
+		switch (gimple_num_ops(def_stmt)) {
+		case 2:
+			return handle_unary_ops(visited, def_stmt);
+		case 3:
+			return handle_binary_ops(visited, lhs);
+#if BUILDING_GCC_VERSION >= 4007
+		case 4:
+			return handle_ternary_ops(visited, lhs);
+#endif
+		}
+	default:
+		debug_gimple_stmt(def_stmt);
+		error("%s: unknown gimple code", __func__);
+		gcc_unreachable();
+	}
+}
+
+static tree get_new_tree(gimple stmt, const_tree orig_node, tree new_node)
+{
+	const_gimple assign;
+	tree orig_type = TREE_TYPE(orig_node);
+	gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
+
+	assign = build_cast_stmt(orig_type, new_node, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
+	return gimple_get_lhs(assign);
+}
+
+static void change_function_arg(gimple stmt, const_tree orig_arg, unsigned int argnum, tree new_arg)
+{
+	gimple_call_set_arg(stmt, argnum, get_new_tree(stmt, orig_arg, new_arg));
+	update_stmt(stmt);
+}
+
+static void change_function_return(gimple stmt, const_tree orig_ret, tree new_ret)
+{
+	gimple_return_set_retval(stmt, get_new_tree(stmt, orig_ret, new_ret));
+	update_stmt(stmt);
+}
+
+static bool get_function_arg(unsigned int* argnum, const_tree fndecl)
+{
+	tree arg;
+	const_tree origarg;
+
+	if (!DECL_ABSTRACT_ORIGIN(fndecl))
+		return true;
+
+	origarg = DECL_ARGUMENTS(DECL_ABSTRACT_ORIGIN(fndecl));
+	while (origarg && *argnum) {
+		(*argnum)--;
+		origarg = TREE_CHAIN(origarg);
+	}
+
+	gcc_assert(*argnum == 0);
+
+	gcc_assert(origarg != NULL_TREE);
+	*argnum = 0;
+	for (arg = DECL_ARGUMENTS(fndecl); arg; arg = TREE_CHAIN(arg), (*argnum)++)
+		if (operand_equal_p(origarg, arg, 0) || !strcmp(NAME(origarg), NAME(arg)))
+			return true;
+	return false;
+}
+
+static enum mark walk_phi(struct pointer_set_t *visited, bool *search_err_code, const_tree result)
+{
+	gimple phi = get_def_stmt(result);
+	unsigned int i, n = gimple_phi_num_args(phi);
+
+	if (!phi)
+		return MARK_NO;
+
+	pointer_set_insert(visited, phi);
+	for (i = 0; i < n; i++) {
+		enum mark marked;
+		const_tree arg = gimple_phi_arg_def(phi, i);
+		marked = pre_expand(visited, search_err_code, arg);
+		if (marked != MARK_NO)
+			return marked;
+	}
+	return MARK_NO;
+}
+
+static enum mark walk_unary_ops(struct pointer_set_t *visited, bool *search_err_code, const_tree lhs)
+{
+	gimple def_stmt = get_def_stmt(lhs);
+	const_tree rhs;
+
+	if (!def_stmt)
+		return MARK_NO;
+
+	rhs = gimple_assign_rhs1(def_stmt);
+
+	def_stmt = get_def_stmt(rhs);
+	if (is_gimple_constant(rhs))
+		search_err_code[FROM_CONST] = true;
+
+	return pre_expand(visited, search_err_code, rhs);
+}
+
+static enum mark walk_binary_ops(struct pointer_set_t *visited, bool *search_err_code, const_tree lhs)
+{
+	gimple def_stmt = get_def_stmt(lhs);
+	const_tree rhs1, rhs2;
+	enum mark marked;
+
+	if (!def_stmt)
+		return MARK_NO;
+
+	search_err_code[CAST_ONLY] = false;
+
+	rhs1 = gimple_assign_rhs1(def_stmt);
+	rhs2 = gimple_assign_rhs2(def_stmt);
+	marked = pre_expand(visited, search_err_code, rhs1);
+	if (marked != MARK_NO)
+		return marked;
+	return pre_expand(visited, search_err_code, rhs2);
+}
+
+static const_tree search_field_decl(const_tree comp_ref)
+{
+	const_tree field = NULL_TREE;
+	unsigned int i, len = TREE_OPERAND_LENGTH(comp_ref);
+
+	for (i = 0; i < len; i++) {
+		field = TREE_OPERAND(comp_ref, i);
+		if (TREE_CODE(field) == FIELD_DECL)
+			break;
+	}
+	gcc_assert(TREE_CODE(field) == FIELD_DECL);
+	return field;
+}
+
+static enum mark mark_status(const_tree fndecl, unsigned int argnum)
+{
+	const_tree attr, p;
+
+	// mm/filemap.c D.35286_51 = D.35283_46 (file_10(D), mapping_11, pos_1, D.35273_50, D.35285_49, page.14_48, fsdata.15_47);
+	if (fndecl == NULL_TREE)
+		return MARK_NO;
+
+	attr = lookup_attribute("intentional_overflow", DECL_ATTRIBUTES(fndecl));
+	if (!attr || !TREE_VALUE(attr))
+		return MARK_NO;
+
+	p = TREE_VALUE(attr);
+	if (TREE_INT_CST_HIGH(TREE_VALUE(p)) == -1)
+		return MARK_TURN_OFF;
+	if (!TREE_INT_CST_LOW(TREE_VALUE(p)))
+		return MARK_NOT_INTENTIONAL;
+	if (argnum == 0) {
+		gcc_assert(current_function_decl == fndecl);
+		return MARK_NO;
+	}
+
+	do {
+		if (argnum == TREE_INT_CST_LOW(TREE_VALUE(p)))
+			return MARK_YES;
+		p = TREE_CHAIN(p);
+	} while (p);
+
+	return MARK_NO;
+}
+
+static void print_missing_msg(tree func, unsigned int argnum)
+{
+	unsigned int new_hash;
+	size_t len;
+	unsigned char tree_codes[CODES_LIMIT];
+	location_t loc;
+	const char *curfunc;
+
+	func = get_original_function_decl(func);
+	loc = DECL_SOURCE_LOCATION(func);
+	curfunc = get_asm_name(func);
+
+	len = get_function_decl(func, tree_codes);
+	new_hash = get_hash_num(curfunc, (const char *) tree_codes, len, 0);
+	inform(loc, "Function %s is missing from the size_overflow hash table +%s+%u+%u+", curfunc, curfunc, argnum, new_hash);
+}
+
+static unsigned int search_missing_attribute(const_tree arg)
+{
+	unsigned int argnum;
+	const struct size_overflow_hash *hash;
+	const_tree type = TREE_TYPE(arg);
+	tree func = get_original_function_decl(current_function_decl);
+
+	gcc_assert(TREE_CODE(arg) != COMPONENT_REF);
+
+	if (TREE_CODE(type) == POINTER_TYPE)
+		return 0;
+
+	argnum = find_arg_number(arg, func);
+	if (argnum == 0)
+		return 0;
+
+	if (lookup_attribute("size_overflow", DECL_ATTRIBUTES(func)))
+		return argnum;
+
+	hash = get_function_hash(func);
+	if (!hash || !(hash->param & (1U << argnum))) {
+		print_missing_msg(func, argnum);
+		return 0;
+	}
+	return argnum;
+}
+
+static enum mark is_already_marked(const_tree lhs)
+{
+	unsigned int argnum;
+	const_tree fndecl;
+
+	argnum = search_missing_attribute(lhs);
+	fndecl = get_original_function_decl(current_function_decl);
+	if (argnum && mark_status(fndecl, argnum) == MARK_YES)
+		return MARK_YES;
+	return MARK_NO;
+}
+
+static enum mark pre_expand(struct pointer_set_t *visited, bool *search_err_code, const_tree lhs)
+{
+	const_gimple def_stmt;
+
+	if (skip_types(lhs))
+		return MARK_NO;
+
+	if (TREE_CODE(lhs) == PARM_DECL)
+		return is_already_marked(lhs);
+
+	if (TREE_CODE(lhs) == COMPONENT_REF) {
+		const_tree field, attr;
+
+		field = search_field_decl(lhs);
+		attr = lookup_attribute("intentional_overflow", DECL_ATTRIBUTES(field));
+		if (!attr || !TREE_VALUE(attr))
+			return MARK_NO;
+		return MARK_YES;
+	}
+
+	def_stmt = get_def_stmt(lhs);
+
+	if (!def_stmt)
+		return MARK_NO;
+
+	if (pointer_set_contains(visited, def_stmt))
+		return MARK_NO;
+
+	switch (gimple_code(def_stmt)) {
+	case GIMPLE_NOP:
+		if (TREE_CODE(SSA_NAME_VAR(lhs)) == PARM_DECL)
+			return is_already_marked(lhs);
+		return MARK_NO;
+	case GIMPLE_PHI:
+		return walk_phi(visited, search_err_code, lhs);
+	case GIMPLE_CALL:
+		if (mark_status((gimple_call_fndecl(def_stmt)), 0) == MARK_TURN_OFF)
+			return MARK_TURN_OFF;
+		check_function_hash(def_stmt);
+		return MARK_NO;
+	case GIMPLE_ASM:
+		search_err_code[CAST_ONLY] = false;
+		return MARK_NO;
+	case GIMPLE_ASSIGN:
+		switch (gimple_num_ops(def_stmt)) {
+		case 2:
+			return walk_unary_ops(visited, search_err_code, lhs);
+		case 3:
+			return walk_binary_ops(visited, search_err_code, lhs);
+		}
+	default:
+		debug_gimple_stmt((gimple)def_stmt);
+		error("%s: unknown gimple code", __func__);
+		gcc_unreachable();
+	}
+}
+
+// e.g., 3.8.2, 64, arch/x86/ia32/ia32_signal.c copy_siginfo_from_user32(): compat_ptr() u32 max
+static bool skip_asm(const_tree arg)
+{
+	gimple def_stmt = get_def_stmt(arg);
+
+	if (!def_stmt || !gimple_assign_cast_p(def_stmt))
+		return false;
+
+	def_stmt = get_def_stmt(gimple_assign_rhs1(def_stmt));
+	return def_stmt && gimple_code(def_stmt) == GIMPLE_ASM;
+}
+
+/*
+0</MARK_YES: no dup, search attributes (so, int)
+0/MARK_NOT_INTENTIONAL: no dup, search attribute (int)
+-1/MARK_TURN_OFF: no dup, no search, current_function_decl -> no dup
+*/
+
+static bool search_attributes(tree fndecl, const_tree arg, unsigned int argnum, bool where)
+{
+	struct pointer_set_t *visited;
+	enum mark is_marked, is_found;
+	location_t loc;
+	bool search_err_code[2] = {true, false};
+
+	is_marked = mark_status(current_function_decl, 0);
+	if (is_marked == MARK_TURN_OFF)
+		return true;
+
+	is_marked = mark_status(fndecl, argnum + 1);
+	if (is_marked == MARK_TURN_OFF || is_marked == MARK_NOT_INTENTIONAL)
+		return true;
+
+	visited = pointer_set_create();
+	is_found = pre_expand(visited, search_err_code, arg);
+	pointer_set_destroy(visited);
+
+	if (where == FROM_RET && search_err_code[CAST_ONLY] && search_err_code[FROM_CONST])
+		return true;
+
+	if (where == FROM_ARG && skip_asm(arg))
+		return true;
+
+	if (is_found == MARK_TURN_OFF)
+		return true;
+
+	if ((is_found == MARK_YES && is_marked == MARK_YES))
+		return true;
+
+	if (is_found == MARK_YES) {
+		loc = DECL_SOURCE_LOCATION(fndecl);
+		inform(loc, "The intentional_overflow attribute is missing from +%s+%u+", get_asm_name(fndecl), argnum + 1);
+		return true;
+	}
+	return false;
+}
+
+static void handle_function_arg(gimple stmt, tree fndecl, unsigned int argnum)
+{
+	struct pointer_set_t *visited;
+	tree arg, new_arg;
+	bool match;
+
+	if (argnum == 0)
+		return;
+
+	argnum--;
+
+	match = get_function_arg(&argnum, fndecl);
+	if (!match)
+		return;
+	gcc_assert(gimple_call_num_args(stmt) > argnum);
+	arg = gimple_call_arg(stmt, argnum);
+	if (arg == NULL_TREE)
+		return;
+
+	if (skip_types(arg))
+		return;
+
+	if (search_attributes(fndecl, arg, argnum, FROM_ARG))
+		return;
+
+	visited = pointer_set_create();
+	new_arg = expand(visited, arg);
+	pointer_set_destroy(visited);
+
+	if (new_arg == NULL_TREE)
+		return;
+
+	change_function_arg(stmt, arg, argnum, new_arg);
+	check_size_overflow(stmt, TREE_TYPE(new_arg), new_arg, arg, BEFORE_STMT);
+}
+
+static void handle_function_by_attribute(gimple stmt, const_tree attr, tree fndecl)
+{
+	tree p = TREE_VALUE(attr);
+	do {
+		handle_function_arg(stmt, fndecl, TREE_INT_CST_LOW(TREE_VALUE(p)));
+		p = TREE_CHAIN(p);
+	} while (p);
+}
+
+static void handle_function_by_hash(gimple stmt, tree fndecl)
+{
+	unsigned int num;
+	const struct size_overflow_hash *hash;
+
+	hash = get_function_hash(fndecl);
+	if (!hash)
+		return;
+
+	for (num = 0; num <= MAX_PARAM; num++)
+		if (hash->param & (1U << num))
+			handle_function_arg(stmt, fndecl, num);
+}
+
+static bool check_return_value(void)
+{
+	const struct size_overflow_hash *hash;
+
+	hash = get_function_hash(current_function_decl);
+	if (!hash || !(hash->param & 1U << 0))
+		return false;
+
+	return true;
+}
+
+static void handle_return_value(gimple ret_stmt)
+{
+	struct pointer_set_t *visited;
+	tree ret, new_ret;
+
+	if (gimple_code(ret_stmt) != GIMPLE_RETURN)
+		return;
+
+	ret = gimple_return_retval(ret_stmt);
+
+	if (skip_types(ret))
+		return;
+
+	if (search_attributes(current_function_decl, ret, 0, FROM_RET))
+		return;
+
+	visited = pointer_set_create();
+	new_ret = expand(visited, ret);
+	pointer_set_destroy(visited);
+
+	change_function_return(ret_stmt, ret, new_ret);
+	check_size_overflow(ret_stmt, TREE_TYPE(new_ret), new_ret, ret, BEFORE_STMT);
+}
+
+static void set_plf_false(void)
+{
+	basic_block bb;
+
+	FOR_ALL_BB(bb) {
+		gimple_stmt_iterator si;
+
+		for (si = gsi_start_bb(bb); !gsi_end_p(si); gsi_next(&si))
+			gimple_set_plf(gsi_stmt(si), MY_STMT, false);
+		for (si = gsi_start_phis(bb); !gsi_end_p(si); gsi_next(&si))
+			gimple_set_plf(gsi_stmt(si), MY_STMT, false);
+	}
+}
+
+static unsigned int handle_function(void)
+{
+	basic_block next, bb = ENTRY_BLOCK_PTR->next_bb;
+	bool check_ret;
+
+	set_plf_false();
+
+	check_ret = check_return_value();
+
+	do {
+		gimple_stmt_iterator gsi;
+		next = bb->next_bb;
+
+		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
+			tree fndecl, attr;
+			gimple stmt = gsi_stmt(gsi);
+
+			if (check_ret)
+				handle_return_value(stmt);
+
+			if (!(is_gimple_call(stmt)))
+				continue;
+			fndecl = gimple_call_fndecl(stmt);
+			if (fndecl == NULL_TREE)
+				continue;
+			if (gimple_call_num_args(stmt) == 0)
+				continue;
+			attr = lookup_attribute("size_overflow", DECL_ATTRIBUTES(fndecl));
+			if (!attr || !TREE_VALUE(attr))
+				handle_function_by_hash(stmt, fndecl);
+			else
+				handle_function_by_attribute(stmt, attr, fndecl);
+			gsi = gsi_for_stmt(stmt);
+			next = gimple_bb(stmt)->next_bb;
+		}
+		bb = next;
+	} while (bb);
+	return 0;
+}
+
+static struct gimple_opt_pass size_overflow_pass = {
+	.pass = {
+		.type			= GIMPLE_PASS,
+		.name			= "size_overflow",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= NULL,
+		.execute		= handle_function,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= PROP_cfg,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0,
+		.todo_flags_finish	= TODO_dump_func | TODO_verify_ssa | TODO_verify_stmts | TODO_remove_unused_locals | TODO_update_ssa_no_phi | TODO_cleanup_cfg | TODO_ggc_collect | TODO_verify_flow
+	}
+};
+
+static void start_unit_callback(void __unused *gcc_data, void __unused *user_data)
+{
+	tree fntype;
+
+	const_char_ptr_type_node = build_pointer_type(build_type_variant(char_type_node, 1, 0));
+
+	// void report_size_overflow(const char *loc_file, unsigned int loc_line, const char *current_func, const char *ssa_var)
+	fntype = build_function_type_list(void_type_node,
+					  const_char_ptr_type_node,
+					  unsigned_type_node,
+					  const_char_ptr_type_node,
+					  const_char_ptr_type_node,
+					  NULL_TREE);
+	report_size_overflow_decl = build_fn_decl("report_size_overflow", fntype);
+
+	DECL_ASSEMBLER_NAME(report_size_overflow_decl);
+	TREE_PUBLIC(report_size_overflow_decl) = 1;
+	DECL_EXTERNAL(report_size_overflow_decl) = 1;
+	DECL_ARTIFICIAL(report_size_overflow_decl) = 1;
+	TREE_THIS_VOLATILE(report_size_overflow_decl) = 1;
+}
+
+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
+{
+	int i;
+	const char * const plugin_name = plugin_info->base_name;
+	const int argc = plugin_info->argc;
+	const struct plugin_argument * const argv = plugin_info->argv;
+	bool enable = true;
+
+	struct register_pass_info size_overflow_pass_info = {
+		.pass				= &size_overflow_pass.pass,
+		.reference_pass_name		= "ssa",
+		.ref_pass_instance_number	= 1,
+		.pos_op				= PASS_POS_INSERT_AFTER
+	};
+
+	if (!plugin_default_version_check(version, &gcc_version)) {
+		error(G_("incompatible gcc/plugin versions"));
+		return 1;
+	}
+
+	for (i = 0; i < argc; ++i) {
+		if (!strcmp(argv[i].key, "no-size-overflow")) {
+			enable = false;
+			continue;
+		}
+		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
+	}
+
+	register_callback(plugin_name, PLUGIN_INFO, NULL, &size_overflow_plugin_info);
+	if (enable) {
+		register_callback("start_unit", PLUGIN_START_UNIT, &start_unit_callback, NULL);
+		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &size_overflow_pass_info);
+	}
+	register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
+
+	return 0;
+}
diff --git a/tools/gcc/stackleak_plugin.c b/tools/gcc/stackleak_plugin.c
new file mode 100644
index 0000000..ac2901e
--- /dev/null
+++ b/tools/gcc/stackleak_plugin.c
@@ -0,0 +1,327 @@
+/*
+ * Copyright 2011-2013 by the PaX Team <pageexec@freemail.hu>
+ * Licensed under the GPL v2
+ *
+ * Note: the choice of the license means that the compilation process is
+ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
+ *       but for the kernel it doesn't matter since it doesn't link against
+ *       any of the gcc libraries
+ *
+ * gcc plugin to help implement various PaX features
+ *
+ * - track lowest stack pointer
+ *
+ * TODO:
+ * - initialize all local variables
+ *
+ * BUGS:
+ * - none known
+ */
+#include "gcc-plugin.h"
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "tree-pass.h"
+#include "flags.h"
+#include "intl.h"
+#include "toplev.h"
+#include "plugin.h"
+//#include "expr.h" where are you...
+#include "diagnostic.h"
+#include "plugin-version.h"
+#include "tm.h"
+#include "function.h"
+#include "basic-block.h"
+#include "gimple.h"
+#include "rtl.h"
+#include "emit-rtl.h"
+
+#if BUILDING_GCC_VERSION >= 4008
+#define TODO_dump_func 0
+#endif
+
+extern void print_gimple_stmt(FILE *, gimple, int, int);
+
+int plugin_is_GPL_compatible;
+
+static int track_frame_size = -1;
+static const char track_function[] = "pax_track_stack";
+static const char check_function[] = "pax_check_alloca";
+static bool init_locals;
+
+static struct plugin_info stackleak_plugin_info = {
+	.version	= "201302112000",
+	.help		= "track-lowest-sp=nn\ttrack sp in functions whose frame size is at least nn bytes\n"
+//			  "initialize-locals\t\tforcibly initialize all stack frames\n"
+};
+
+static bool gate_stackleak_track_stack(void);
+static unsigned int execute_stackleak_tree_instrument(void);
+static unsigned int execute_stackleak_final(void);
+
+static struct gimple_opt_pass stackleak_tree_instrument_pass = {
+	.pass = {
+		.type			= GIMPLE_PASS,
+		.name			= "stackleak_tree_instrument",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= gate_stackleak_track_stack,
+		.execute		= execute_stackleak_tree_instrument,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= PROP_gimple_leh | PROP_cfg,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts,
+		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa
+	}
+};
+
+static struct rtl_opt_pass stackleak_final_rtl_opt_pass = {
+	.pass = {
+		.type			= RTL_PASS,
+		.name			= "stackleak_final",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= gate_stackleak_track_stack,
+		.execute		= execute_stackleak_final,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= 0,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0,
+		.todo_flags_finish	= TODO_dump_func
+	}
+};
+
+static bool gate_stackleak_track_stack(void)
+{
+	return track_frame_size >= 0;
+}
+
+static void stackleak_check_alloca(gimple_stmt_iterator *gsi)
+{
+	gimple check_alloca;
+	tree fntype, fndecl, alloca_size;
+
+	fntype = build_function_type_list(void_type_node, long_unsigned_type_node, NULL_TREE);
+	fndecl = build_fn_decl(check_function, fntype);
+	DECL_ASSEMBLER_NAME(fndecl); // for LTO
+
+	// insert call to void pax_check_alloca(unsigned long size)
+	alloca_size = gimple_call_arg(gsi_stmt(*gsi), 0);
+	check_alloca = gimple_build_call(fndecl, 1, alloca_size);
+	gsi_insert_before(gsi, check_alloca, GSI_SAME_STMT);
+}
+
+static void stackleak_add_instrumentation(gimple_stmt_iterator *gsi)
+{
+	gimple track_stack;
+	tree fntype, fndecl;
+
+	fntype = build_function_type_list(void_type_node, NULL_TREE);
+	fndecl = build_fn_decl(track_function, fntype);
+	DECL_ASSEMBLER_NAME(fndecl); // for LTO
+
+	// insert call to void pax_track_stack(void)
+	track_stack = gimple_build_call(fndecl, 0);
+	gsi_insert_after(gsi, track_stack, GSI_CONTINUE_LINKING);
+}
+
+#if BUILDING_GCC_VERSION == 4005
+static bool gimple_call_builtin_p(gimple stmt, enum built_in_function code)
+{
+	tree fndecl;
+
+	if (!is_gimple_call(stmt))
+		return false;
+	fndecl = gimple_call_fndecl(stmt);
+	if (!fndecl)
+		return false;
+	if (DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL)
+		return false;
+//	print_node(stderr, "pax", fndecl, 4);
+	return DECL_FUNCTION_CODE(fndecl) == code;
+}
+#endif
+
+static bool is_alloca(gimple stmt)
+{
+	if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA))
+		return true;
+
+#if BUILDING_GCC_VERSION >= 4007
+	if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA_WITH_ALIGN))
+		return true;
+#endif
+
+	return false;
+}
+
+static unsigned int execute_stackleak_tree_instrument(void)
+{
+	basic_block bb, entry_bb;
+	bool prologue_instrumented = false, is_leaf = true;
+
+	entry_bb = ENTRY_BLOCK_PTR_FOR_FUNCTION(cfun)->next_bb;
+
+	// 1. loop through BBs and GIMPLE statements
+	FOR_EACH_BB(bb) {
+		gimple_stmt_iterator gsi;
+
+		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
+			gimple stmt;
+
+			stmt = gsi_stmt(gsi);
+
+			if (is_gimple_call(stmt))
+				is_leaf = false;
+
+			// gimple match: align 8 built-in BUILT_IN_NORMAL:BUILT_IN_ALLOCA attributes <tree_list 0xb7576450>
+			if (!is_alloca(stmt))
+				continue;
+
+			// 2. insert stack overflow check before each __builtin_alloca call
+			stackleak_check_alloca(&gsi);
+
+			// 3. insert track call after each __builtin_alloca call
+			stackleak_add_instrumentation(&gsi);
+			if (bb == entry_bb)
+				prologue_instrumented = true;
+		}
+	}
+
+	// special cases for some bad linux code: taking the address of static inline functions will materialize them
+	// but we mustn't instrument some of them as the resulting stack alignment required by the function call ABI
+	// will break other assumptions regarding the expected (but not otherwise enforced) register clobbering  ABI.
+	// case in point: native_save_fl on amd64 when optimized for size clobbers rdx if it were instrumented here.
+	if (is_leaf && !TREE_PUBLIC(current_function_decl) && DECL_DECLARED_INLINE_P(current_function_decl))
+		return 0;
+	if (is_leaf && !strncmp(IDENTIFIER_POINTER(DECL_NAME(current_function_decl)), "_paravirt_", 10))
+		return 0;
+
+	// 4. insert track call at the beginning
+	if (!prologue_instrumented) {
+		gimple_stmt_iterator gsi;
+
+		bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest;
+		if (dom_info_available_p(CDI_DOMINATORS))
+			set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR);
+		gsi = gsi_start_bb(bb);
+		stackleak_add_instrumentation(&gsi);
+	}
+
+	return 0;
+}
+
+static unsigned int execute_stackleak_final(void)
+{
+	rtx insn, next;
+
+	if (cfun->calls_alloca)
+		return 0;
+
+	// keep calls only if function frame is big enough
+	if (get_frame_size() >= track_frame_size)
+		return 0;
+
+	// 1. find pax_track_stack calls
+	for (insn = get_insns(); insn; insn = next) {
+		// rtl match: (call_insn 8 7 9 3 (call (mem (symbol_ref ("pax_track_stack") [flags 0x41] <function_decl 0xb7470e80 pax_track_stack>) [0 S1 A8]) (4)) -1 (nil) (nil))
+		rtx body;
+
+		next = NEXT_INSN(insn);
+		if (!CALL_P(insn))
+			continue;
+		body = PATTERN(insn);
+		if (GET_CODE(body) != CALL)
+			continue;
+		body = XEXP(body, 0);
+		if (GET_CODE(body) != MEM)
+			continue;
+		body = XEXP(body, 0);
+		if (GET_CODE(body) != SYMBOL_REF)
+			continue;
+		if (strcmp(XSTR(body, 0), track_function))
+			continue;
+//		warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size);
+		// 2. delete call
+		delete_insn_and_edges(insn);
+#if BUILDING_GCC_VERSION >= 4007
+		if (GET_CODE(next) == NOTE && NOTE_KIND(next) == NOTE_INSN_CALL_ARG_LOCATION) {
+			insn = next;
+			next = NEXT_INSN(insn);
+			delete_insn_and_edges(insn);
+		}
+#endif
+	}
+
+//	print_simple_rtl(stderr, get_insns());
+//	print_rtl(stderr, get_insns());
+//	warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size);
+
+	return 0;
+}
+
+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
+{
+	const char * const plugin_name = plugin_info->base_name;
+	const int argc = plugin_info->argc;
+	const struct plugin_argument * const argv = plugin_info->argv;
+	int i;
+	struct register_pass_info stackleak_tree_instrument_pass_info = {
+		.pass				= &stackleak_tree_instrument_pass.pass,
+//		.reference_pass_name		= "tree_profile",
+		.reference_pass_name		= "optimized",
+		.ref_pass_instance_number	= 1,
+		.pos_op 			= PASS_POS_INSERT_BEFORE
+	};
+	struct register_pass_info stackleak_final_pass_info = {
+		.pass				= &stackleak_final_rtl_opt_pass.pass,
+		.reference_pass_name		= "final",
+		.ref_pass_instance_number	= 1,
+		.pos_op 			= PASS_POS_INSERT_BEFORE
+	};
+
+	if (!plugin_default_version_check(version, &gcc_version)) {
+		error(G_("incompatible gcc/plugin versions"));
+		return 1;
+	}
+
+	register_callback(plugin_name, PLUGIN_INFO, NULL, &stackleak_plugin_info);
+
+	for (i = 0; i < argc; ++i) {
+		if (!strcmp(argv[i].key, "track-lowest-sp")) {
+			if (!argv[i].value) {
+				error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
+				continue;
+			}
+			track_frame_size = atoi(argv[i].value);
+			if (argv[i].value[0] < '0' || argv[i].value[0] > '9' || track_frame_size < 0)
+				error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
+			continue;
+		}
+		if (!strcmp(argv[i].key, "initialize-locals")) {
+			if (argv[i].value) {
+				error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
+				continue;
+			}
+			init_locals = true;
+			continue;
+		}
+		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
+	}
+
+	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_tree_instrument_pass_info);
+	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_final_pass_info);
+
+	return 0;
+}
diff --git a/tools/gcc/structleak_plugin.c b/tools/gcc/structleak_plugin.c
new file mode 100644
index 0000000..4fae911
--- /dev/null
+++ b/tools/gcc/structleak_plugin.c
@@ -0,0 +1,277 @@
+/*
+ * Copyright 2013 by PaX Team <pageexec@freemail.hu>
+ * Licensed under the GPL v2
+ *
+ * Note: the choice of the license means that the compilation process is
+ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
+ *       but for the kernel it doesn't matter since it doesn't link against
+ *       any of the gcc libraries
+ *
+ * gcc plugin to forcibly initialize certain local variables that could
+ * otherwise leak kernel stack to userland if they aren't properly initialized
+ * by later code
+ *
+ * Homepage: http://pax.grsecurity.net/
+ *
+ * Usage:
+ * $ # for 4.5/4.6/C based 4.7
+ * $ gcc -I`gcc -print-file-name=plugin`/include -I`gcc -print-file-name=plugin`/include/c-family -fPIC -shared -O2 -o structleak_plugin.so structleak_plugin.c
+ * $ # for C++ based 4.7/4.8+
+ * $ g++ -I`g++ -print-file-name=plugin`/include -I`g++ -print-file-name=plugin`/include/c-family -fPIC -shared -O2 -o structleak_plugin.so structleak_plugin.c
+ * $ gcc -fplugin=./structleak_plugin.so test.c -O2
+ *
+ * TODO: eliminate redundant initializers
+ *       increase type coverage
+ */
+
+#include "gcc-plugin.h"
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "tree-pass.h"
+#include "intl.h"
+#include "plugin-version.h"
+#include "tm.h"
+#include "toplev.h"
+#include "function.h"
+#include "tree-flow.h"
+#include "plugin.h"
+#include "gimple.h"
+#include "diagnostic.h"
+#include "cfgloop.h"
+#include "langhooks.h"
+
+#if BUILDING_GCC_VERSION >= 4008
+#define TODO_dump_func 0
+#endif
+
+#define NAME(node) IDENTIFIER_POINTER(DECL_NAME(node))
+
+// unused type flag in all versions 4.5-4.8
+#define TYPE_USERSPACE(TYPE) TYPE_LANG_FLAG_3(TYPE)
+
+int plugin_is_GPL_compatible;
+void debug_gimple_stmt(gimple gs);
+
+static struct plugin_info structleak_plugin_info = {
+	.version	= "201304082245",
+	.help		= "disable\tdo not activate plugin\n",
+};
+
+static tree handle_user_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
+{
+	*no_add_attrs = true;
+
+	// check for types? for now accept everything linux has to offer
+	if (TREE_CODE(*node) != FIELD_DECL)
+		return NULL_TREE;
+
+	*no_add_attrs = false;
+	return NULL_TREE;
+}
+
+static struct attribute_spec user_attr = {
+	.name			= "user",
+	.min_length		= 0,
+	.max_length		= 0,
+	.decl_required		= false,
+	.type_required		= false,
+	.function_type_required	= false,
+	.handler		= handle_user_attribute,
+#if BUILDING_GCC_VERSION >= 4007
+	.affects_type_identity	= true
+#endif
+};
+
+static void register_attributes(void *event_data, void *data)
+{
+	register_attribute(&user_attr);
+//	register_attribute(&force_attr);
+}
+
+static tree get_field_type(tree field)
+{
+	return strip_array_types(TREE_TYPE(field));
+}
+
+static bool is_userspace_type(tree type)
+{
+	tree field;
+
+	for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) {
+		tree fieldtype = get_field_type(field);
+		enum tree_code code = TREE_CODE(fieldtype);
+
+		if (code == RECORD_TYPE || code == UNION_TYPE)
+			if (is_userspace_type(fieldtype))
+				return true;
+
+		if (lookup_attribute("user", DECL_ATTRIBUTES(field)))
+			return true;
+	}
+	return false;
+}
+
+static void finish_type(void *event_data, void *data)
+{
+	tree type = (tree)event_data;
+
+	if (TYPE_USERSPACE(type))
+		return;
+
+	if (is_userspace_type(type))
+		TYPE_USERSPACE(type) = 1;
+}
+
+static void initialize(tree var)
+{
+	basic_block bb;
+	gimple_stmt_iterator gsi;
+	tree initializer;
+	gimple init_stmt;
+
+	// this is the original entry bb before the forced split
+	// TODO: check further BBs in case more splits occured before us
+	bb = ENTRY_BLOCK_PTR->next_bb->next_bb;
+
+	// first check if the variable is already initialized, warn otherwise
+	for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
+		gimple stmt = gsi_stmt(gsi);
+		tree rhs1;
+
+		// we're looking for an assignment of a single rhs...
+		if (!gimple_assign_single_p(stmt))
+			continue;
+		rhs1 = gimple_assign_rhs1(stmt);
+#if BUILDING_GCC_VERSION >= 4007
+		// ... of a non-clobbering expression...
+		if (TREE_CLOBBER_P(rhs1))
+			continue;
+#endif
+		// ... to our variable...
+		if (gimple_get_lhs(stmt) != var)
+			continue;
+		// if it's an initializer then we're good
+		if (TREE_CODE(rhs1) == CONSTRUCTOR)
+			return;
+	}
+
+	// these aren't the 0days you're looking for
+//	inform(DECL_SOURCE_LOCATION(var), "userspace variable will be forcibly initialized");
+
+	// build the initializer expression
+	initializer = build_constructor(TREE_TYPE(var), NULL);
+
+	// build the initializer stmt
+	init_stmt = gimple_build_assign(var, initializer);
+	gsi = gsi_start_bb(ENTRY_BLOCK_PTR->next_bb);
+	gsi_insert_before(&gsi, init_stmt, GSI_NEW_STMT);
+	update_stmt(init_stmt);
+}
+
+static unsigned int handle_function(void)
+{
+	basic_block bb;
+	unsigned int ret = 0;
+	tree var;
+
+#if BUILDING_GCC_VERSION == 4005
+	tree vars;
+#else
+	unsigned int i;
+#endif
+
+	// split the first bb where we can put the forced initializers
+	bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest;
+	if (dom_info_available_p(CDI_DOMINATORS))
+		set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR);
+
+	// enumarate all local variables and forcibly initialize our targets
+#if BUILDING_GCC_VERSION == 4005
+	for (vars = cfun->local_decls; vars; vars = TREE_CHAIN(vars)) {
+		var = TREE_VALUE(vars);
+#else
+	FOR_EACH_LOCAL_DECL(cfun, i, var) {
+#endif
+		tree type = TREE_TYPE(var);
+
+		gcc_assert(DECL_P(var));
+		if (!auto_var_in_fn_p(var, current_function_decl))
+			continue;
+
+		// only care about structure types
+		if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
+			continue;
+
+		// if the type is of interest, examine the variable
+		if (TYPE_USERSPACE(type))
+			initialize(var);
+	}
+
+	return ret;
+}
+
+static struct gimple_opt_pass structleak_pass = {
+	.pass = {
+		.type			= GIMPLE_PASS,
+		.name			= "structleak",
+#if BUILDING_GCC_VERSION >= 4008
+		.optinfo_flags		= OPTGROUP_NONE,
+#endif
+		.gate			= NULL,
+		.execute		= handle_function,
+		.sub			= NULL,
+		.next			= NULL,
+		.static_pass_number	= 0,
+		.tv_id			= TV_NONE,
+		.properties_required	= PROP_cfg,
+		.properties_provided	= 0,
+		.properties_destroyed	= 0,
+		.todo_flags_start	= 0,
+		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa | TODO_ggc_collect | TODO_verify_flow
+	}
+};
+
+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
+{
+	int i;
+	const char * const plugin_name = plugin_info->base_name;
+	const int argc = plugin_info->argc;
+	const struct plugin_argument * const argv = plugin_info->argv;
+	bool enable = true;
+
+	struct register_pass_info structleak_pass_info = {
+		.pass				= &structleak_pass.pass,
+		.reference_pass_name		= "ssa",
+		.ref_pass_instance_number	= 1,
+		.pos_op				= PASS_POS_INSERT_AFTER
+	};
+
+	if (!plugin_default_version_check(version, &gcc_version)) {
+		error(G_("incompatible gcc/plugin versions"));
+		return 1;
+	}
+
+	if (strcmp(lang_hooks.name, "GNU C")) {
+		inform(UNKNOWN_LOCATION, G_("%s supports C only"), plugin_name);
+		enable = false;
+	}
+
+	for (i = 0; i < argc; ++i) {
+		if (!strcmp(argv[i].key, "disable")) {
+			enable = false;
+			continue;
+		}
+		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
+	}
+
+	register_callback(plugin_name, PLUGIN_INFO, NULL, &structleak_plugin_info);
+	if (enable) {
+		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &structleak_pass_info);
+		register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL);
+	}
+	register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
+
+	return 0;
+}
diff --git a/tools/perf/util/include/asm/alternative-asm.h b/tools/perf/util/include/asm/alternative-asm.h
index 6789d78..4afd019e 100644
--- a/tools/perf/util/include/asm/alternative-asm.h
+++ b/tools/perf/util/include/asm/alternative-asm.h
@@ -5,4 +5,7 @@
 
 #define altinstruction_entry #
 
+	.macro pax_force_retaddr rip=0, reload=0
+	.endm
+
 #endif
diff --git a/tools/perf/util/include/linux/compiler.h b/tools/perf/util/include/linux/compiler.h
index 96b919d..c49bb74 100644
--- a/tools/perf/util/include/linux/compiler.h
+++ b/tools/perf/util/include/linux/compiler.h
@@ -18,4 +18,12 @@
 #define __force
 #endif
 
+#ifndef __size_overflow
+# define __size_overflow(...)
+#endif
+
+#ifndef __intentional_overflow
+# define __intentional_overflow(...)
+#endif
+
 #endif
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index f18013f..90421df 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -75,12 +75,17 @@ LIST_HEAD(vm_list);
 
 static cpumask_var_t cpus_hardware_enabled;
 static int kvm_usage_count = 0;
-static atomic_t hardware_enable_failed;
+static atomic_unchecked_t hardware_enable_failed;
 
 struct kmem_cache *kvm_vcpu_cache;
 EXPORT_SYMBOL_GPL(kvm_vcpu_cache);
 
-static __read_mostly struct preempt_ops kvm_preempt_ops;
+static void kvm_sched_in(struct preempt_notifier *pn, int cpu);
+static void kvm_sched_out(struct preempt_notifier *pn, struct task_struct *next);
+static struct preempt_ops kvm_preempt_ops = {
+	.sched_in = kvm_sched_in,
+	.sched_out = kvm_sched_out,
+};
 
 struct dentry *kvm_debugfs_dir;
 
@@ -769,7 +774,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 	/* We can read the guest memory with __xxx_user() later on. */
 	if (user_alloc &&
 	    ((mem->userspace_addr & (PAGE_SIZE - 1)) ||
-	     !access_ok(VERIFY_WRITE,
+	     !__access_ok(VERIFY_WRITE,
 			(void __user *)(unsigned long)mem->userspace_addr,
 			mem->memory_size)))
 		goto out;
@@ -1881,7 +1886,7 @@ static int kvm_vcpu_release(struct inode *inode, struct file *filp)
 	return 0;
 }
 
-static struct file_operations kvm_vcpu_fops = {
+static file_operations_no_const kvm_vcpu_fops __read_only = {
 	.release        = kvm_vcpu_release,
 	.unlocked_ioctl = kvm_vcpu_ioctl,
 #ifdef CONFIG_COMPAT
@@ -2402,7 +2407,7 @@ static int kvm_vm_mmap(struct file *file, struct vm_area_struct *vma)
 	return 0;
 }
 
-static struct file_operations kvm_vm_fops = {
+static file_operations_no_const kvm_vm_fops __read_only = {
 	.release        = kvm_vm_release,
 	.unlocked_ioctl = kvm_vm_ioctl,
 #ifdef CONFIG_COMPAT
@@ -2500,7 +2505,7 @@ out:
 	return r;
 }
 
-static struct file_operations kvm_chardev_ops = {
+static file_operations_no_const kvm_chardev_ops __read_only = {
 	.unlocked_ioctl = kvm_dev_ioctl,
 	.compat_ioctl   = kvm_dev_ioctl,
 	.llseek		= noop_llseek,
@@ -2526,7 +2531,7 @@ static void hardware_enable_nolock(void *junk)
 
 	if (r) {
 		cpumask_clear_cpu(cpu, cpus_hardware_enabled);
-		atomic_inc(&hardware_enable_failed);
+		atomic_inc_unchecked(&hardware_enable_failed);
 		printk(KERN_INFO "kvm: enabling virtualization on "
 				 "CPU%d failed\n", cpu);
 	}
@@ -2580,10 +2585,10 @@ static int hardware_enable_all(void)
 
 	kvm_usage_count++;
 	if (kvm_usage_count == 1) {
-		atomic_set(&hardware_enable_failed, 0);
+		atomic_set_unchecked(&hardware_enable_failed, 0);
 		on_each_cpu(hardware_enable_nolock, NULL, 1);
 
-		if (atomic_read(&hardware_enable_failed)) {
+		if (atomic_read_unchecked(&hardware_enable_failed)) {
 			hardware_disable_all_nolock();
 			r = -EBUSY;
 		}
@@ -2941,7 +2946,7 @@ static void kvm_sched_out(struct preempt_notifier *pn,
 	kvm_arch_vcpu_put(vcpu);
 }
 
-int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
+int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 		  struct module *module)
 {
 	int r;
@@ -2977,7 +2982,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 	if (!vcpu_align)
 		vcpu_align = __alignof__(struct kvm_vcpu);
 	kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size, vcpu_align,
-					   0, NULL);
+					   SLAB_USERCOPY, NULL);
 	if (!kvm_vcpu_cache) {
 		r = -ENOMEM;
 		goto out_free_3;
@@ -2987,9 +2992,11 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 	if (r)
 		goto out_free;
 
+	pax_open_kernel();
 	kvm_chardev_ops.owner = module;
 	kvm_vm_fops.owner = module;
 	kvm_vcpu_fops.owner = module;
+	pax_close_kernel();
 
 	r = misc_register(&kvm_dev);
 	if (r) {
@@ -2999,9 +3006,6 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 
 	register_syscore_ops(&kvm_syscore_ops);
 
-	kvm_preempt_ops.sched_in = kvm_sched_in;
-	kvm_preempt_ops.sched_out = kvm_sched_out;
-
 	r = kvm_init_debug();
 	if (r) {
 		printk(KERN_ERR "kvm: create debugfs files failed\n");