From b8a0ae20b0eecd4b86a113d2abe2fa5a582b30a6 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Tue, 25 Nov 2008 17:20:11 -0800 Subject: netns xfrm: per-netns state GC list km_waitq is going to be made per-netns to disallow spurious wakeups in __xfrm_lookup(). To not wakeup after every garbage-collected xfrm_state (which potentially can be from different netns) make state GC list per-netns. Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- net/xfrm/xfrm_state.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net') diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 1b2a72c8429..864a97477ae 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -177,7 +177,6 @@ static DEFINE_RWLOCK(xfrm_state_afinfo_lock); static struct xfrm_state_afinfo *xfrm_state_afinfo[NPROTO]; static struct work_struct xfrm_state_gc_work; -static HLIST_HEAD(xfrm_state_gc_list); static DEFINE_SPINLOCK(xfrm_state_gc_lock); int __xfrm_state_delete(struct xfrm_state *x); @@ -394,7 +393,7 @@ static void xfrm_state_gc_task(struct work_struct *data) struct hlist_head gc_list; spin_lock_bh(&xfrm_state_gc_lock); - hlist_move_list(&xfrm_state_gc_list, &gc_list); + hlist_move_list(&init_net.xfrm.state_gc_list, &gc_list); spin_unlock_bh(&xfrm_state_gc_lock); hlist_for_each_entry_safe(x, entry, tmp, &gc_list, gclist) @@ -527,7 +526,7 @@ void __xfrm_state_destroy(struct xfrm_state *x) WARN_ON(x->km.state != XFRM_STATE_DEAD); spin_lock_bh(&xfrm_state_gc_lock); - hlist_add_head(&x->gclist, &xfrm_state_gc_list); + hlist_add_head(&x->gclist, &init_net.xfrm.state_gc_list); spin_unlock_bh(&xfrm_state_gc_lock); schedule_work(&xfrm_state_gc_work); } @@ -2088,6 +2087,7 @@ int __net_init xfrm_state_init(struct net *net) net->xfrm.state_num = 0; INIT_WORK(&net->xfrm.state_hash_work, xfrm_hash_resize); + INIT_HLIST_HEAD(&net->xfrm.state_gc_list); INIT_WORK(&xfrm_state_gc_work, xfrm_state_gc_task); return 0; -- cgit v1.2.3