From: Pavel Emelyanov <xemul@openvz.org>
Date: Tue, 09 Oct 2007 19:55:28 +0400
> This concerns the ipv4 and ipv6 code mostly, but also the netlink
> and unix sockets.
>
> The netlink code is an example of how to use the __seq_open_private()
> call - it saves the net namespace on this private.
>
> Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Applied.