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From 50a0749eba31e821a7edf286f1e3b149f7d13c59 Mon Sep 17 00:00:00 2001
From: Richard Yao <ryao@gentoo.org>
Date: Mon, 25 Nov 2013 11:22:33 -0500
Subject: [PATCH] Linux 3.13 compat: Pass NULL for new delegated inode argument
This check was originally added for SLES10, a093c6a, to check for
a 'struct vfsmount *' argument which they added. However, since
SLES10 is based on a 2.6.16 kernel which is no longer supported
this functionality was dropped. The checks were refactored to
support Linux 3.13 without concern for historical versions.
Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #312
---
config/spl-build.m4 | 52 ++++++++++++++++++++++++++++++++++++++++----------
module/spl/spl-vnode.c | 22 ++++++++++++---------
2 files changed, 55 insertions(+), 19 deletions(-)
diff --git a/config/spl-build.m4 b/config/spl-build.m4
index 7d744db..8426780 100644
--- a/config/spl-build.m4
+++ b/config/spl-build.m4
@@ -1842,41 +1842,73 @@ AC_DEFUN([SPL_AC_SET_FS_PWD_WITH_CONST],
EXTRA_KCFLAGS="$tmp_flags"
])
-dnl #
-dnl # SLES API change, never adopted in mainline,
-dnl # Third 'struct vfsmount *' argument removed.
-dnl #
AC_DEFUN([SPL_AC_2ARGS_VFS_UNLINK],
[AC_MSG_CHECKING([whether vfs_unlink() wants 2 args])
SPL_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
- vfs_unlink(NULL, NULL);
+ vfs_unlink((struct inode *) NULL, (struct dentry *) NULL);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_2ARGS_VFS_UNLINK, 1,
[vfs_unlink() wants 2 args])
],[
AC_MSG_RESULT(no)
+ dnl #
+ dnl # Linux 3.13 API change
+ dnl # Added delegated inode
+ dnl #
+ AC_MSG_CHECKING([whether vfs_unlink() wants 3 args])
+ SPL_LINUX_TRY_COMPILE([
+ #include <linux/fs.h>
+ ],[
+ vfs_unlink((struct inode *) NULL,
+ (struct dentry *) NULL,
+ (struct inode **) NULL);
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_3ARGS_VFS_UNLINK, 1,
+ [vfs_unlink() wants 3 args])
+ ],[
+ AC_MSG_ERROR(no)
+ ])
+
])
])
-dnl #
-dnl # SLES API change, never adopted in mainline,
-dnl # Third and sixth 'struct vfsmount *' argument removed.
-dnl #
AC_DEFUN([SPL_AC_4ARGS_VFS_RENAME],
[AC_MSG_CHECKING([whether vfs_rename() wants 4 args])
SPL_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
- vfs_rename(NULL, NULL, NULL, NULL);
+ vfs_rename((struct inode *) NULL, (struct dentry *) NULL,
+ (struct inode *) NULL, (struct dentry *) NULL);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_4ARGS_VFS_RENAME, 1,
[vfs_rename() wants 4 args])
],[
AC_MSG_RESULT(no)
+ dnl #
+ dnl # Linux 3.13 API change
+ dnl # Added delegated inode
+ dnl #
+ AC_MSG_CHECKING([whether vfs_rename() wants 5 args])
+ SPL_LINUX_TRY_COMPILE([
+ #include <linux/fs.h>
+ ],[
+ vfs_rename((struct inode *) NULL,
+ (struct dentry *) NULL,
+ (struct inode *) NULL,
+ (struct dentry *) NULL,
+ (struct inode **) NULL);
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_5ARGS_VFS_RENAME, 1,
+ [vfs_rename() wants 5 args])
+ ],[
+ AC_MSG_ERROR(no)
+ ])
])
])
diff --git a/module/spl/spl-vnode.c b/module/spl/spl-vnode.c
index 0784ff2..5496067 100644
--- a/module/spl/spl-vnode.c
+++ b/module/spl/spl-vnode.c
@@ -334,7 +334,11 @@ vn_remove(const char *path, uio_seg_t seg, int flags)
if (inode)
ihold(inode);
+#ifdef HAVE_2ARGS_VFS_UNLINK
rc = vfs_unlink(parent.dentry->d_inode, dentry);
+#else
+ rc = vfs_unlink(parent.dentry->d_inode, dentry, NULL);
+#endif /* HAVE_2ARGS_VFS_UNLINK */
exit1:
dput(dentry);
} else {
@@ -412,10 +416,10 @@ vn_rename(const char *oldname, const char *newname, int x1)
#ifdef HAVE_4ARGS_VFS_RENAME
rc = vfs_rename(old_dir->d_inode, old_dentry,
- new_dir->d_inode, new_dentry);
+ new_dir->d_inode, new_dentry);
#else
- rc = vfs_rename(old_dir->d_inode, old_dentry, oldnd.nd_mnt,
- new_dir->d_inode, new_dentry, newnd.nd_mnt);
+ rc = vfs_rename(old_dir->d_inode, old_dentry,
+ new_dir->d_inode, new_dentry, NULL);
#endif /* HAVE_4ARGS_VFS_RENAME */
exit4:
unlock_rename(new_dir, old_dir);
@@ -478,9 +482,9 @@ vn_remove(const char *path, uio_seg_t seg, int flags)
if (inode)
atomic_inc(&inode->i_count);
#ifdef HAVE_2ARGS_VFS_UNLINK
- rc = vfs_unlink(nd.nd_dentry->d_inode, dentry);
+ rc = vfs_unlink(nd.nd_dentry->d_inode, dentry);
#else
- rc = vfs_unlink(nd.nd_dentry->d_inode, dentry, nd.nd_mnt);
+ rc = vfs_unlink(nd.nd_dentry->d_inode, dentry, NULL);
#endif /* HAVE_2ARGS_VFS_UNLINK */
exit2:
dput(dentry);
@@ -571,11 +575,11 @@ vn_rename(const char *oldname, const char *newname, int x1)
SGOTO(exit5, rc);
#ifdef HAVE_4ARGS_VFS_RENAME
- rc = vfs_rename(old_dir->d_inode, old_dentry,
- new_dir->d_inode, new_dentry);
+ rc = vfs_rename(old_dir->d_inode, old_dentry,
+ new_dir->d_inode, new_dentry);
#else
- rc = vfs_rename(old_dir->d_inode, old_dentry, oldnd.nd_mnt,
- new_dir->d_inode, new_dentry, newnd.nd_mnt);
+ rc = vfs_rename(old_dir->d_inode, old_dentry,
+ new_dir->d_inode, new_dentry, NULL);
#endif /* HAVE_4ARGS_VFS_RENAME */
exit5:
dput(new_dentry);
--
1.9.3
From 3e96de17d723d6f6c9e2fd04b059b50d4e0bbef0 Mon Sep 17 00:00:00 2001
From: Richard Yao <ryao@gentoo.org>
Date: Thu, 8 Aug 2013 04:30:55 -0400
Subject: [PATCH] Linux 3.13 compat: Remove unused flags variable from
__cv_init()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
GCC 4.8.1 complained about an unused flags variable when building
against Linux 2.6.26.8:
/var/tmp/portage/sys-kernel/spl-9999/work/spl-9999/module/spl/../../module/spl/spl-condvar.c:
In function ‘__cv_init’:
/var/tmp/portage/sys-kernel/spl-9999/work/spl-9999/module/spl/../../module/spl/spl-condvar.c:39:6:
error: variable ‘flags’ set but not used
[-Werror=unused-but-set-variable]
int flags = KM_SLEEP;
^
cc1: all warnings being treated as errors
Additionally, the superfluous code uses a preempt_count variable that is
no longer available on Linux 3.13. Deleting the unnecessary code fixes a
Linux 3.13 compatibility issue.
Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #312
---
module/spl/spl-condvar.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/module/spl/spl-condvar.c b/module/spl/spl-condvar.c
index 283648a..8236412 100644
--- a/module/spl/spl-condvar.c
+++ b/module/spl/spl-condvar.c
@@ -36,8 +36,6 @@
void
__cv_init(kcondvar_t *cvp, char *name, kcv_type_t type, void *arg)
{
- int flags = KM_SLEEP;
-
SENTRY;
ASSERT(cvp);
ASSERT(name == NULL);
@@ -51,12 +49,6 @@ __cv_init(kcondvar_t *cvp, char *name, kcv_type_t type, void *arg)
atomic_set(&cvp->cv_refs, 1);
cvp->cv_mutex = NULL;
- /* We may be called when there is a non-zero preempt_count or
- * interrupts are disabled is which case we must not sleep.
- */
- if (current_thread_info()->preempt_count || irqs_disabled())
- flags = KM_NOSLEEP;
-
SEXIT;
}
EXPORT_SYMBOL(__cv_init);
--
1.9.3
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