From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] tunnels: Optimize tx path
Date: Mon, 05 Oct 2009 00:12:03 -0700 (PDT)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 24 Sep 2009 09:43:58 +0200

> We currently dirty a cache line to update tunnel device stats
> (tx_packets/tx_bytes). We better use the txq->tx_bytes/tx_packets
> counters that already are present in cpu cache, in the cache
> line shared with txq->_xmit_lock
> 
> This patch extends IPTUNNEL_XMIT() macro to use txq pointer
> provided by the caller.
> 
> Also &tunnel->dev->stats can be replaced by &dev->stats
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>

Applied to net-next-2.6