linux-kernel - Re: [PATCH 10/12] Add /sys trigger for per-node memory compaction

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Date:	Fri, 19 Feb 2010 06:53:59 -0800
From:	Greg KH <greg@...ah.com>
To:	Mel Gorman <mel@....ul.ie>
Cc:	Andrea Arcangeli <aarcange@...hat.com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Adam Litke <agl@...ibm.com>, Avi Kivity <avi@...hat.com>,
	David Rientjes <rientjes@...gle.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH 10/12] Add /sys trigger for per-node memory compaction

On Thu, Feb 18, 2010 at 06:02:40PM +0000, Mel Gorman wrote:
> This patch adds a per-node sysfs file called compact. When the file is
> written to, each zone in that node is compacted. The intention that this
> would be used by something like a job scheduler in a batch system before
> a job starts so that the job can allocate the maximum number of
> hugepages without significant start-up cost.

As you are adding sysfs files, can you please also add documentation for
the file in Documentation/ABI/ ?

thanks,

greg k-h
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