From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Wed, 19 Oct 2011 15:34:09 +0000 (+0000)
Subject: ipv4: avoid useless call of the function check_peer_pmtu
X-Git-Tag: v3.2-rc1~182^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59445b6b1f90b97c4e28062b96306bacfa4fb170;p=pandora-kernel.git

ipv4: avoid useless call of the function check_peer_pmtu

In func ipv4_dst_check,check_peer_pmtu should be called only when peer is updated.
So,if the peer is not updated in ip_rt_frag_needed,we can not inc __rt_peer_genid.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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