From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
To: Michal Kubecek <mkubecek@suse.cz>,
"David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
James Morris <jmorris@namei.org>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
Patrick McHardy <kaber@trash.net>,
roopa <roopa@cumulusnetworks.com>
Subject: Re: [PATCH net v2 1/2] ipv6: do not delete previously existing ECMP routes if add fails
Date: Thu, 14 May 2015 20:54:05 +0200 [thread overview]
Message-ID: <5554EF4D.9030803@6wind.com> (raw)
In-Reply-To: <bb3d4b3ef28339bbf863a42e569bbdc1078565ee.1431546602.git.mkubecek@suse.cz>
Le 13/05/2015 21:59, Michal Kubecek a écrit :
> If adding a nexthop of an IPv6 multipath route fails, comment in
> ip6_route_multipath() says we are going to delete all nexthops already
> added. However, current implementation deletes even the routes it
> hasn't even tried to add yet. For example, running
>
> ip route add 1234:5678::/64 \
> nexthop via fe80::aa dev dummy1 \
> nexthop via fe80::bb dev dummy1 \
> nexthop via fe80::cc dev dummy1
>
> twice results in removing all routes first command added.
>
> Limit the second (delete) run to nexthops that succeeded in the first
> (add) run.
>
> Fixes: 51ebd3181572 ("ipv6: add support of equal cost multipath (ECMP)")
> Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
next prev parent reply other threads:[~2015-05-14 18:54 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-13 9:50 [PATCH net 0/2] IPv6 ECMP route add/replace fixes Michal Kubecek
2015-05-13 9:50 ` [PATCH net 1/2] ipv6: do not delete previously existing ECMP routes if add fails Michal Kubecek
2015-05-13 12:28 ` Nicolas Dichtel
2015-05-13 12:49 ` Michal Kubecek
2015-05-13 13:30 ` roopa
2015-05-13 20:06 ` Michal Kubecek
2015-05-13 19:59 ` [PATCH net v2 0/2] IPv6 ECMP route add/replace fixes Michal Kubecek
2015-05-13 19:59 ` [PATCH net v2 1/2] ipv6: do not delete previously existing ECMP routes if add fails Michal Kubecek
2015-05-14 18:54 ` Nicolas Dichtel [this message]
2015-05-13 19:59 ` [PATCH net v2 2/2] ipv6: fix ECMP route replacement Michal Kubecek
2015-05-14 18:58 ` Nicolas Dichtel
2015-05-14 21:49 ` Michal Kubecek
2015-05-15 8:51 ` Michal Kubecek
2015-05-15 16:12 ` David Miller
2015-05-15 17:41 ` Michal Kubecek
2015-05-16 21:18 ` David Miller
2015-05-18 18:53 ` [PATCH net v3 0/2] IPv6 ECMP route add/replace fixes Michal Kubecek
2015-05-18 18:53 ` [PATCH net v3 1/2] ipv6: do not delete previously existing ECMP routes if add fails Michal Kubecek
2015-05-18 18:54 ` [PATCH net v3 2/2] ipv6: fix ECMP route replacement Michal Kubecek
2015-05-19 20:51 ` David Miller
2015-05-20 8:56 ` Nicolas Dichtel
2015-05-20 16:03 ` [PATCH net v3 0/2] IPv6 ECMP route add/replace fixes David Miller
2015-05-13 9:50 ` [PATCH net 2/2] ipv6: fix ECMP route replacement Michal Kubecek
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