linux-kernel - Re: [PATCH RFC 0/3] tcp: allow to repair a tcp connections in closing states

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Message-Id: <20140324.192932.881876462361283961.davem@davemloft.net>
Date:	Mon, 24 Mar 2014 19:29:32 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	avagin@...nvz.org
Cc:	linux-kernel@...r.kernel.org, criu@...nvz.org,
	netdev@...r.kernel.org, kuznet@....inr.ac.ru, jmorris@...ei.org,
	yoshfuji@...ux-ipv6.org, kaber@...sh.net, edumazet@...gle.com,
	xemul@...allels.com, gorcunov@...nvz.org
Subject: Re: [PATCH RFC 0/3] tcp: allow to repair a tcp connections in
 closing states

From: Andrey Vagin <avagin@...nvz.org>
Date: Fri, 21 Mar 2014 17:32:58 +0400

> Currently connections only in the TCP_ESTABLISHED state can be dumped and
> restored. This series allows to restore connections in the FIN_WAIT_1,
> FIN_WAIT_2, LAST_ACK, CLOSE_WAIT or CLOSING states.
> 
> For restoring closing states we need an ability to restore a fin packet
> in a queue. In this series I suggest to use the interface of control
> messages for that.

I see no real value in this unless you tackle TIME_WAIT as well, and
that's going to add so much code.
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