Namespace roots might be slave ones from another
namespace roots, so we should not treat them as
"always ready" for mounting but rely on general
logic in can_mount_now which tests slaves relations.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Acked-by: Andrew Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>