| Date | Tue, 26 Mar 2013 13:22:05 -0400 | From | Steven Rostedt <> | Subject | [PATCH 66/86] ipv4: Dont update the pmtu on mtu locked routes |
| |
3.6.11.1 stable review patch. If anyone has any objections, please let me know.
------------------
From: Steffen Klassert <steffen.klassert@secunet.com>
[ Upstream commit 4ac7bed1ff5f935525a8c71c347bbc8cdff9e067 ]
Routes with locked mtu should not use learned pmtu informations, so do not update the pmtu on these routes.
Reported-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/ipv4/route.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index fba3240..6d0ae55 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -912,6 +912,9 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu) struct dst_entry *dst = &rt->dst; struct fib_result res; + if (dst_metric_locked(dst, RTAX_MTU)) + return; + if (dst->dev->mtu < mtu) return; -- 1.7.10.4
|