From: Li RongQing <redacted>
if hold_queue of old xfrm_policy is NULL, return directly, then not need to
run other codes, especially take the spin lock
Signed-off-by: Li RongQing <redacted>
---
net/xfrm/xfrm_policy.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index f576217..1d53f4d 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -708,6 +708,9 @@ static void xfrm_policy_requeue(struct xfrm_policy *old,
struct xfrm_policy_queue *pq = &old->polq;
struct sk_buff_head list;
+ if (skb_queue_empty(&pq->hold_queue))
+ return;
+
__skb_queue_head_init(&list);
spin_lock_bh(&pq->hold_queue.lock);
@@ -716,9 +719,6 @@ static void xfrm_policy_requeue(struct xfrm_policy *old,
xfrm_pol_put(old);
spin_unlock_bh(&pq->hold_queue.lock);
- if (skb_queue_empty(&list))
- return;
-
pq = &new->polq;
spin_lock_bh(&pq->hold_queue.lock);
--
2.1.0