linux-kernel - Re: [PATCH 5/9] mm: oom_kill: remove unnecessary locking in exit_oom

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Message-ID: <alpine.DEB.2.10.1504281540100.10203@chino.kir.corp.google.com>
Date:	Tue, 28 Apr 2015 15:40:23 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Johannes Weiner <hannes@...xchg.org>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Michal Hocko <mhocko@...e.cz>,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Dave Chinner <david@...morbit.com>,
	Vlastimil Babka <vbabka@...e.cz>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/9] mm: oom_kill: remove unnecessary locking in
 exit_oom_victim()

On Mon, 27 Apr 2015, Johannes Weiner wrote:

> Disabling the OOM killer needs to exclude allocators from entering,
> not existing victims from exiting.
> 
> Right now the only waiter is suspend code, which achieves quiescence
> by disabling the OOM killer.  But later on we want to add waits that
> hold the lock instead to stop new victims from showing up.
> 
> Signed-off-by: Johannes Weiner <hannes@...xchg.org>
> Acked-by: Michal Hocko <mhocko@...e.cz>

Acked-by: David Rientjes <rientjes@...gle.com>
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