From: Oleg Nesterov <oleg@tv-sign.ru>

Trivial, use same_thread_group() in reparent_thread().

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/exit.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN kernel/exit.c~reparent_thread-use-same_thread_group kernel/exit.c
--- a/kernel/exit.c~reparent_thread-use-same_thread_group
+++ a/kernel/exit.c
@@ -656,7 +656,7 @@ reparent_thread(struct task_struct *p, s
 	/* If this is a threaded reparent there is no need to
 	 * notify anyone anything has happened.
 	 */
-	if (p->real_parent->group_leader == father->group_leader)
+	if (same_thread_group(p->real_parent, father))
 		return;
 
 	/* We don't want people slaying init.  */
_