tree d52ccb4758fd58cbf74c7a9001e6885275d3ddc8
parent 16c6cf8bb471392fd09b48b7c27e7d83a446b4bc
author Eric Dumazet <eric.dumazet@gmail.com> 1254726682 -0700
committer David S. Miller <davem@davemloft.net> 1254727317 -0700

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>