From: Martin KaFai Lau <kafai@fb.com>
Date: Sat, 23 May 2015 03:56:00 +0000 (-0700)
Subject: ipv6: Only create RTF_CACHE routes after encountering pmtu exception
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~134^2~224^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45e4fd26683c9a5f88600d91b08a484f7f09226a;p=pandora-kernel.git

ipv6: Only create RTF_CACHE routes after encountering pmtu exception

This patch creates a RTF_CACHE routes only after encountering a pmtu
exception.

After ip6_rt_update_pmtu() has inserted the RTF_CACHE route to the fib6
tree, the rt->rt6i_node->fn_sernum is bumped which will fail the
ip6_dst_check() and trigger a relookup.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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