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| author | Jim Paris <jim@jtan.com> | 2008-01-31 16:36:25 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-31 19:28:21 -0800 |
| commit | 23717795bee15470b96f9b7aa5ecf4efe14c8e32 (patch) | |
| tree | 5c9f3d3fc0ef0cddd1af52737128185d90dda9ba /net | |
| parent | fa4d3c6210380c55cf7f295d28fd981fbcbb828c (diff) | |
| download | linux-3.10-23717795bee15470b96f9b7aa5ecf4efe14c8e32.tar.gz linux-3.10-23717795bee15470b96f9b7aa5ecf4efe14c8e32.tar.bz2 linux-3.10-23717795bee15470b96f9b7aa5ecf4efe14c8e32.zip | |
[IPV6]: Update MSS even if MTU is unchanged.
This is needed because in ndisc.c, we have:
static void ndisc_router_discovery(struct sk_buff *skb)
{
// ...
if (ndopts.nd_opts_mtu) {
// ...
if (rt)
rt->u.dst.metrics[RTAX_MTU-1] = mtu;
rt6_mtu_change(skb->dev, mtu);
// ...
}
Since the mtu is set directly here, rt6_mtu_change_route thinks that
it is unchanged, and so it fails to update the MSS accordingly. This
patch lets rt6_mtu_change_route still update MSS if old_mtu == new_mtu.
Signed-off-by: Jim Paris <jim@jtan.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/route.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index bf6b6652ab7..513f72e3db0 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1909,7 +1909,7 @@ static int rt6_mtu_change_route(struct rt6_info *rt, void *p_arg) */ if (rt->rt6i_dev == arg->dev && !dst_metric_locked(&rt->u.dst, RTAX_MTU) && - (dst_mtu(&rt->u.dst) > arg->mtu || + (dst_mtu(&rt->u.dst) >= arg->mtu || (dst_mtu(&rt->u.dst) < arg->mtu && dst_mtu(&rt->u.dst) == idev->cnf.mtu6))) { rt->u.dst.metrics[RTAX_MTU-1] = arg->mtu; |