tree 9393590b3d79a26cf18cd11ac2b2d7f7c34a61e5
parent 8b9df2657704dd313333a79497dde429f9190caa
author Martin KaFai Lau <kafai@fb.com> 1432353360 -0700
committer David S. Miller <davem@davemloft.net> 1432574733 -0400

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>