linux-kernel - Re: [PATCH 2/2] mm: Abort reclaim/compaction if compaction can proceed

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Message-ID: <20111012145701.GA6478@redhat.com>
Date:	Wed, 12 Oct 2011 10:57:01 -0400
From:	Johannes Weiner <jweiner@...hat.com>
To:	Mel Gorman <mgorman@...e.de>
Cc:	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	akpm@...ux-foundation.org, Josh Boyer <jwboyer@...hat.com>,
	aarcange@...hat.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] mm: Abort reclaim/compaction if compaction can
 proceed

On Fri, Oct 07, 2011 at 04:17:23PM +0100, Mel Gorman wrote:
> If compaction can proceed, shrink_zones() stops doing any work but
> the callers still shrink_slab(), raises the priority and potentially
> sleeps.  This patch aborts direct reclaim/compaction entirely if
> compaction can proceed.
> 
> Signed-off-by: Mel Gorman <mgorman@...e.de>

Acked-by: Johannes Weiner <jweiner@...hat.com>
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