[PATCH] reparent_thread: use same_thread_group()

[Oleg Nesterov]

Trivial, use same_thread_group() in reparent_thread().

Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>

--- 25/kernel/exit.c~6_EN_SG	2008-03-03 06:24:56.000000000 +0300
+++ 25/kernel/exit.c	2008-03-03 06:46:00.000000000 +0300
@@ -653,7 +653,7 @@ 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.  */

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