diff options
Diffstat (limited to 'main/linux-grsec/0010-xfrm-Remove-xfrm_state_genid.patch')
| -rw-r--r-- | main/linux-grsec/0010-xfrm-Remove-xfrm_state_genid.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/main/linux-grsec/0010-xfrm-Remove-xfrm_state_genid.patch b/main/linux-grsec/0010-xfrm-Remove-xfrm_state_genid.patch new file mode 100644 index 000000000..8cfffd739 --- /dev/null +++ b/main/linux-grsec/0010-xfrm-Remove-xfrm_state_genid.patch @@ -0,0 +1,54 @@ +From f2c59932757a06851bb740dc757ce2ba1961fc08 Mon Sep 17 00:00:00 2001 +From: Herbert Xu <herbert@gondor.apana.org.au> +Date: Wed, 31 Mar 2010 01:19:49 +0000 +Subject: [PATCH 10/18] xfrm: Remove xfrm_state_genid +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +The xfrm state genid only needs to be matched against the copy +saved in xfrm_dst. So we don't need a global genid at all. In +fact, we don't even need to initialise it. + +Based on observation by Timo Teräs. + +Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> +Signed-off-by: David S. Miller <davem@davemloft.net> +(cherry picked from commit 34996cb91dd72f0b0456d8fd3fef4aaee62232f2) +--- + net/xfrm/xfrm_state.c | 5 +---- + 1 files changed, 1 insertions(+), 4 deletions(-) + +diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c +index f2f7c63..8ee733f 100644 +--- a/net/xfrm/xfrm_state.c ++++ b/net/xfrm/xfrm_state.c +@@ -34,7 +34,6 @@ + static DEFINE_SPINLOCK(xfrm_state_lock); + + static unsigned int xfrm_state_hashmax __read_mostly = 1 * 1024 * 1024; +-static unsigned int xfrm_state_genid; + + static struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family); + static void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo); +@@ -903,8 +902,6 @@ static void __xfrm_state_insert(struct xfrm_state *x) + struct net *net = xs_net(x); + unsigned int h; + +- x->genid = ++xfrm_state_genid; +- + list_add(&x->km.all, &net->xfrm.state_all); + + h = xfrm_dst_hash(net, &x->id.daddr, &x->props.saddr, +@@ -948,7 +945,7 @@ static void __xfrm_state_bump_genids(struct xfrm_state *xnew) + x->props.reqid == reqid && + !xfrm_addr_cmp(&x->id.daddr, &xnew->id.daddr, family) && + !xfrm_addr_cmp(&x->props.saddr, &xnew->props.saddr, family)) +- x->genid = xfrm_state_genid; ++ x->genid++; + } + } + +-- +1.7.0.2 + |