The link must be read after restore on original
file descriptor since namespace id do change between
c/r sessions.

https://bugzilla.openvz.org/show_bug.cgi?id=2599Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>