Commit 2d7ceece authored Sep 27, 2005 by Eric Dumazet Committed by David S. Miller Sep 27, 2005

[NET]: Prefetch dev->qdisc_lock in dev_queue_xmit()



We know the lock is going to be taken.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent bc8dfcb9

net/core/dev.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1259,6 +1259,8 @@ int dev_queue_xmit(struct sk_buff *skb)
		if (skb_checksum_help(skb, 0))
		goto out_kfree_skb;

		spin_lock_prefetch(&dev->queue_lock);

		/* Disable soft irqs for various locks below. Also
		* stops preemption for RCU.
		*/