From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:58592 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751482AbeFXPZJ (ORCPT ); Sun, 24 Jun 2018 11:25:09 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Martin KaFai Lau , Julian Anastasov , David Ahern , "David S. Miller" Subject: [PATCH 4.14 03/52] ipv6: allow PMTU exceptions to local routes Date: Sun, 24 Jun 2018 23:20:56 +0800 Message-Id: <20180624142744.466352024@linuxfoundation.org> In-Reply-To: <20180624142744.234164867@linuxfoundation.org> References: <20180624142744.234164867@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Julian Anastasov [ 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 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 Acked-by: David Ahern Acked-by: Martin KaFai Lau Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- 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;