From: roy.qing.li@gmail.com
To: netdev@vger.kernel.org
Subject: [PATCH][net-next] net: avoid to call skb_queue_len again
Date: Fri, 5 Dec 2014 17:49:08 +0800 [thread overview]
Message-ID: <1417772948-17909-1-git-send-email-roy.qing.li@gmail.com> (raw)
From: Li RongQing <roy.qing.li@gmail.com>
the queue length of sd->input_pkt_queue has been putted into qlen,
and impossible to change, since hold the lock
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
---
net/core/dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/dev.c b/net/core/dev.c
index 0814a56..b954400 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3297,7 +3297,7 @@ static int enqueue_to_backlog(struct sk_buff *skb, int cpu,
rps_lock(sd);
qlen = skb_queue_len(&sd->input_pkt_queue);
if (qlen <= netdev_max_backlog && !skb_flow_limit(skb, qlen)) {
- if (skb_queue_len(&sd->input_pkt_queue)) {
+ if (qlen) {
enqueue:
__skb_queue_tail(&sd->input_pkt_queue, skb);
input_queue_tail_incr_save(sd, qtail);
--
2.1.0
next reply other threads:[~2014-12-05 9:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-05 9:49 roy.qing.li [this message]
2014-12-05 13:24 ` [PATCH][net-next] net: avoid to call skb_queue_len again Eric Dumazet
2014-12-05 14:06 ` Sergei Shtylyov
2014-12-05 14:31 ` Eric Dumazet
2014-12-08 0:46 ` Li RongQing
2014-12-08 11:28 ` Sergei Shtylyov
2014-12-08 15:10 ` Eric Dumazet
2014-12-08 16:51 ` Sergei Shtylyov
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