linux-kernel - Re: [PATCH 2/5] mm: compaction: Use synchronous compaction for /proc/sys/vm/compact

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Message-ID: <4ECAC6C0.3090202@redhat.com>
Date:	Mon, 21 Nov 2011 16:46:40 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Mel Gorman <mgorman@...e.de>
CC:	Linux-MM <linux-mm@...ck.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Minchan Kim <minchan.kim@...il.com>, Jan Kara <jack@...e.cz>,
	Andy Isaacson <adi@...apodia.org>,
	Johannes Weiner <jweiner@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/5] mm: compaction: Use synchronous compaction for /proc/sys/vm/compact_memory

On 11/18/2011 11:58 AM, Mel Gorman wrote:
> When asynchronous compaction was introduced, the
> /proc/sys/vm/compact_memory handler should have been updated to always
> use synchronous compaction. This did not happen so this patch addresses
> it. The assumption is if a user writes to /proc/sys/vm/compact_memory,
> they are willing for that process to stall.
>
> Signed-off-by: Mel Gorman<mgorman@...e.de>

Reviewed-by: Rik van Riel <riel@...hat.com>

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