xfrm: state lookup can be lockless

[mirror_ubuntu-artful-kernel.git] / net / xfrm / xfrm_state.c

diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index ba8bf518ba14c911697813377987e0f998c84aa8..a38fdead38ea7ba29f70fcda219b375625773204 100644 (file)
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1431,9 +1431,9 @@ xfrm_state_lookup(struct net *net, u32 mark, const xfrm_address_t *daddr, __be32
 {
        struct xfrm_state *x;
 
-       spin_lock_bh(&net->xfrm.xfrm_state_lock);
+       rcu_read_lock();
        x = __xfrm_state_lookup(net, mark, daddr, spi, proto, family);
-       spin_unlock_bh(&net->xfrm.xfrm_state_lock);
+       rcu_read_unlock();
        return x;
 }
 EXPORT_SYMBOL(xfrm_state_lookup);