linux-kernel - [RFC 2/3] memcg: do not check PF_EXITING in mem_cgroup_out_of

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Message-Id: <1389798068-19885-3-git-send-email-mhocko@suse.cz>
Date:	Wed, 15 Jan 2014 16:01:07 +0100
From:	Michal Hocko <mhocko@...e.cz>
To:	<linux-mm@...ck.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Johannes Weiner <hannes@...xchg.org>,
	David Rientjes <rientjes@...gle.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [RFC 2/3] memcg: do not check PF_EXITING in mem_cgroup_out_of_memory

because all tasks with PF_EXITING will skip the charge since (memcg: do
not hang on OOM when killed by userspace OOM access to memory reserves)
was merged.

Signed-off-by: Michal Hocko <mhocko@...e.cz>
---
 mm/memcontrol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 491d368ae488..97ae5cf12f5e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1766,7 +1766,7 @@ static void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask,
 	 * select it.  The goal is to allow it to allocate so that it may
 	 * quickly exit and free its memory.
 	 */
-	if (fatal_signal_pending(current) || current->flags & PF_EXITING) {
+	if (fatal_signal_pending(current)) {
 		set_thread_flag(TIF_MEMDIE);
 		return;
 	}
-- 
1.8.5.2

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