4.14-stable review patch. If anyone has any objections, please let me know.
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From: Julian Anastasov ja@ssi.bg
[ Upstream commit 0975764684487bf3f7a47eef009e750ea41bd514 ]
IPVS setups with local client and remote tunnel server need to create exception for the local virtual IP. What we do is to change PMTU from 64KB (on "lo") to 1460 in the common case.
Suggested-by: Martin KaFai Lau kafai@fb.com Fixes: 45e4fd26683c ("ipv6: Only create RTF_CACHE routes after encountering pmtu exception") Fixes: 7343ff31ebf0 ("ipv6: Don't create clones of host routes.") Signed-off-by: Julian Anastasov ja@ssi.bg Acked-by: David Ahern dsahern@gmail.com Acked-by: Martin KaFai Lau kafai@fb.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ipv6/route.c | 3 --- 1 file changed, 3 deletions(-)
--- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1476,9 +1476,6 @@ static void __ip6_rt_update_pmtu(struct const struct in6_addr *daddr, *saddr; struct rt6_info *rt6 = (struct rt6_info *)dst;
- if (rt6->rt6i_flags & RTF_LOCAL) - return; - if (dst_metric_locked(dst, RTAX_MTU)) return;