From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9540BC43142 for ; Sun, 24 Jun 2018 15:33:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4EDAD24FDE for ; Sun, 24 Jun 2018 15:33:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4EDAD24FDE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755018AbeFXPdI (ORCPT ); Sun, 24 Jun 2018 11:33:08 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:59246 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754716AbeFXPdG (ORCPT ); Sun, 24 Jun 2018 11:33:06 -0400 Received: from localhost (li1825-44.members.linode.com [172.104.248.44]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 69F232C; Sun, 24 Jun 2018 15:33:03 +0000 (UTC) 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 4.16 03/64] ipv6: allow PMTU exceptions to local routes Date: Sun, 24 Jun 2018 23:21:44 +0800 Message-Id: <20180624142743.833882848@linuxfoundation.org> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180624142743.613370789@linuxfoundation.org> References: <20180624142743.613370789@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.16-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 @@ -2077,9 +2077,6 @@ 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;