From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 5 Oct 2009 07:11:22 +0000 (-0700)
Subject: tunnels: Optimize tx path
X-Git-Tag: v2.6.33-rc1~388^2~939
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0bfbedb14a8a96c529341bec88991a92b41fac72;p=pandora-kernel.git

tunnels: Optimize tx path

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed