[CRIU] [PATCH] tty: restore sid on master points only (v2)

[Cyrill Gorcunov]

On Tue, Mar 19, 2013 at 08:29:24PM +0400, Andrey Vagin wrote:
> If a master point has sid, it doesn't mean, that all slave points
> will have sid. Look at tty03 for example:
> 
>   PID   SID TT       COMMAND
> 26748 26748 ?        tty03
> 26749 26749 pts/2     \_ tty03
> 26750 26750 ?             \_ tty03
> 
> The second process has not a file descriptor for the ctl tty,
> but this tty is opened in tty03.
> 
> v2: If a slave point with sid has not a master point, the option
> --shell-job must be set and sid isn't restored for such terminals.
> 
> Signed-off-by: Andrey Vagin <avagin at openvz.org>
Acked-by: Cyrill Gorcunov <gorcunov at openvz.org>