netdev - Re: [PATCH net-next 12/18] ipv6: Teach tree walker to skip multipath routes

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Message-ID: <3f8f5c39-9e46-5280-ef9f-d9b2f25ffd78@gmail.com>
Date:   Sun, 7 Jan 2018 10:04:10 -0700
From:   David Ahern <dsahern@...il.com>
To:     Ido Schimmel <idosch@...lanox.com>, netdev@...r.kernel.org
Cc:     davem@...emloft.net, roopa@...ulusnetworks.com,
        nicolas.dichtel@...nd.com, weiwan@...gle.com, kafai@...com,
        yoshfuji@...ux-ipv6.org, mlxsw@...lanox.com
Subject: Re: [PATCH net-next 12/18] ipv6: Teach tree walker to skip multipath
 routes

On 1/7/18 3:45 AM, Ido Schimmel wrote:
> As explained in previous patch, fib6_ifdown() needs to consider the
> state of all the sibling routes when a multipath route is traversed.
> 
> This is done by evaluating all the siblings when the first sibling in a
> multipath route is traversed. If the multipath route does not need to be
> flushed (e.g., not all siblings are dead), then we should just skip the
> multipath route as our work is done.
> 
> Have the tree walker jump to the last sibling when it is determined that
> the multipath route needs to be skipped.
> 
> Signed-off-by: Ido Schimmel <idosch@...lanox.com>
> ---
>  net/ipv6/ip6_fib.c | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 

Acked-by: David Ahern <dsahern@...il.com>