[CRIU] [PATCH RFC 0/3] tcp: allow to repair a tcp connections in closing states

[David Miller]

From: Andrey Vagin <avagin at openvz.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.