linux-kernel - [patch 3/4] mm, oom: remove redundant sleep in pagefault oom handler

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Message-ID: <alpine.DEB.2.00.1211140113200.32125@chino.kir.corp.google.com>
Date:	Wed, 14 Nov 2012 01:15:25 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: [patch 3/4] mm, oom: remove redundant sleep in pagefault oom
 handler

out_of_memory() will already cause current to schedule if it has not been
killed, so doing it again in pagefault_out_of_memory() is redundant.
Remove it.

Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc: Michal Hocko <mhocko@...e.cz>
Signed-off-by: David Rientjes <rientjes@...gle.com>
---
 mm/oom_kill.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -683,5 +683,4 @@ void pagefault_out_of_memory(void)
 		out_of_memory(NULL, 0, 0, NULL, false);
 		clear_zonelist_oom(zonelist, GFP_KERNEL);
 	}
-	schedule_timeout_killable(1);
 }
--
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