From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sat, 29 Aug 2009 06:52:01 +0000 (-0700)
Subject: net: ip_rt_send_redirect() optimization
X-Git-Tag: v2.6.32-rc1~703^2~252
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=30038fc61adfdab162b1966e34261f06eda67f02;p=pandora-kernel.git

net: ip_rt_send_redirect() optimization

While doing some forwarding benchmarks, I noticed
ip_rt_send_redirect() is rather expensive, even if send_redirects is
false for the device.

Fix is to avoid two atomic ops, we dont really need to take a
reference on in_dev

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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