From d79d792ef9f99cca463b6619a93e860d1c833a6e Mon Sep 17 00:00:00 2001 From: Eric W. Biederman Date: Thu, 3 Dec 2009 02:29:05 +0000 Subject: 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 Signed-off-by: David S. Miller --- include/net/netns/xfrm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net') diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h index 1ba912749caa..56f8e5585df7 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; -- cgit v1.2.3