From: Hugh Dickins <hugh@veritas.com>
Date: Sun, 27 Jul 2008 00:51:06 +0000 (-0700)
Subject: netns: fix ip_rt_frag_needed rt_is_expired
X-Git-Tag: v2.6.27-rc1~75^2
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=6c3b8fc618905d7599dcc514c99ce4293d476f39;p=linux-2.6-omap-h63xx.git

netns: fix ip_rt_frag_needed rt_is_expired

Running recent kernels, and using a particular vpn gateway, I've been
having to edit my mails down to get them accepted by the smtp server.

Git bisect led to commit e84f84f276473dcc673f360e8ff3203148bdf0e2 -
netns: place rt_genid into struct net.  The conversion from a != test
to rt_is_expired() put one negative too many: and now my mail works.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Acked-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index e4ab0ac94f9..a507c5e27d0 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1502,7 +1502,7 @@ unsigned short ip_rt_frag_needed(struct net *net, struct iphdr *iph,
 				    rth->fl.iif != 0 ||
 				    dst_metric_locked(&rth->u.dst, RTAX_MTU) ||
 				    !net_eq(dev_net(rth->u.dst.dev), net) ||
-				    !rt_is_expired(rth))
+				    rt_is_expired(rth))
 					continue;
 
 				if (new_mtu < 68 || new_mtu >= old_mtu) {