linux-kernel - [PATCH 1/2] wait_task_zombie: remove unneeded child->signal check

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Message-ID: <20070805150041.GA2016@tv-sign.ru>
Date:	Sun, 5 Aug 2007 19:00:42 +0400
From:	Oleg Nesterov <oleg@...sign.ru>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Roland McGrath <roland@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] wait_task_zombie: remove unneeded child->signal check

A zombie must have a valid ->signal, we are going to release it and
__exit_signal() starts with BUG_ON(!sig).

Signed-off-by: Oleg Nesterov <oleg@...sign.ru>

--- t/kernel/exit.c~1_SIGCK	2007-08-05 18:43:00.000000000 +0400
+++ t/kernel/exit.c	2007-08-05 18:46:00.000000000 +0400
@@ -1210,7 +1210,7 @@ static int wait_task_zombie(struct task_
 		return 0;
 	}
 
-	if (likely(p->real_parent == p->parent) && likely(p->signal)) {
+	if (likely(p->real_parent == p->parent)) {
 		struct signal_struct *psig;
 		struct signal_struct *sig;
 

-
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