xfrm: policy: make xfrm_policy_lookup_bytype lockless

side effect: no longer disables BH (should be fine).

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 09f2e2b38246..9302647f20a0 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1123,7 +1123,7 @@ static struct xfrm_policy *xfrm_policy_lookup_bytype(struct net *net, u8 type,
         if (unlikely(!daddr || !saddr))
                 return NULL;
 
-        read_lock_bh(&net->xfrm.xfrm_policy_lock);
+        rcu_read_lock();
  retry:
         do {
                 sequence = read_seqcount_begin(&xfrm_policy_hash_generation);
@@ -1172,7 +1172,7 @@ static struct xfrm_policy *xfrm_policy_lookup_bytype(struct net *net, u8 type,
         if (ret && !xfrm_pol_hold_rcu(ret))
                 goto retry;
 fail:
-        read_unlock_bh(&net->xfrm.xfrm_policy_lock);
+        rcu_read_unlock();
 
         return ret;
 }