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authorEric W. Biederman <ebiederm@xmission.com>2009-12-03 02:29:05 +0000
committerDavid S. Miller <davem@davemloft.net>2009-12-03 12:22:03 -0800
commitd79d792ef9f99cca463b6619a93e860d1c833a6e (patch)
tree06d8a085701546be48ac104fd4f2413a6371180c /include/net
parent04dc7f6be3a7b308f8545bb45772c9fb75f71aca (diff)
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net: Allow xfrm_user_net_exit to batch efficiently.
xfrm.nlsk is provided by the xfrm_user module and is access via rcu from other parts of the xfrm code. Add xfrm.nlsk_stash a copy of xfrm.nlsk that will never be set to NULL. This allows the synchronize_net and netlink_kernel_release to be deferred until a whole batch of xfrm.nlsk sockets have been set to NULL. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/netns/xfrm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
index 1ba9127..56f8e55 100644
--- a/include/net/netns/xfrm.h
+++ b/include/net/netns/xfrm.h
@@ -43,6 +43,7 @@ struct netns_xfrm {
struct work_struct policy_hash_work;
struct sock *nlsk;
+ struct sock *nlsk_stash;
u32 sysctl_aevent_etime;
u32 sysctl_aevent_rseqth;