Commit 2d7ceece authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller

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

We know the lock is going to be taken.
Signed-off-by: default avatarEric Dumazet <dada1@cosmosbay.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bc8dfcb9
......@@ -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.
*/
......
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