linux-kernel - [PATCH 7/9] oom: remove child->mm check from oom_kill

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Message-Id: <20100617105035.FB9B.A69D9226@jp.fujitsu.com>
Date:	Thu, 17 Jun 2010 10:51:44 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Rientjes <rientjes@...gle.com>,
	Minchan Kim <minchan.kim@...il.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Oleg Nesterov <oleg@...hat.com>
Cc:	kosaki.motohiro@...fujitsu.com
Subject: [PATCH 7/9] oom: remove child->mm check from oom_kill_process()


Current "child->mm == p->mm" mean prevent to select vfork() task.
But we don't have any reason to prevent it.

Remvoed.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
---
 mm/oom_kill.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 7f91151..a6bb2d7 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -475,8 +475,6 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
 		list_for_each_entry(child, &t->children, sibling) {
 			unsigned long child_points;
 
-			if (child->mm == p->mm)
-				continue;
 			if (oom_unkillable_task(p, mem, nodemask))
 				continue;
 
-- 
1.6.5.2



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