netdev - Re: [PATCH v3 net-next] sock: Reset dst when changing sk

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Message-Id: <20181108.193626.719722996347133067.davem@davemloft.net>
Date:   Thu, 08 Nov 2018 19:36:26 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     david.barmann@...ckpath.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH v3 net-next] sock: Reset dst when changing sk_mark via
 setsockopt

From: David Barmann <david.barmann@...ckpath.com>
Date: Thu, 8 Nov 2018 08:13:35 -0600

> When setting the SO_MARK socket option, if the mark changes, the dst
> needs to be reset so that a new route lookup is performed.
> 
> This fixes the case where an application wants to change routing by
> setting a new sk_mark.  If this is done after some packets have already
> been sent, the dst is cached and has no effect.
> 
> Signed-off-by: David Barmann <david.barmann@...ckpath.com>

Applied.