Commit e008f3f0 authored Dec 08, 2014 by Li RongQing Committed by David S. Miller Dec 09, 2014

net: avoid to call skb_queue_len again



the queue length of sd->input_pkt_queue has been put into qlen,
and impossible to change, since hold the lock

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 5d6201e1

net/core/dev.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);