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| author | Li RongQing <roy.qing.li@gmail.com> | 2015-04-30 17:25:19 +0800 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2015-05-05 09:27:01 +0200 |
| commit | de2ad486cb6cfdf3ef79a96a18d78bb1b135c0e0 (patch) | |
| tree | 79cd7e2cac4c67cefa9cc905b7b5c6ece3607ea4 /net/xfrm | |
| parent | 586f2eb416f4271444e807b96346df3d30e8dfb5 (diff) | |
| download | linux-de2ad486cb6cfdf3ef79a96a18d78bb1b135c0e0.tar.bz2 | |
xfrm: move the checking for old xfrm_policy hold_queue to beginning
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 <roy.qing.li@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/xfrm')
| -rw-r--r-- | net/xfrm/xfrm_policy.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 435bc0dc7630..3d264e5e7409 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -700,6 +700,9 @@ 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); @@ -708,9 +711,6 @@ 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); |