linux-kernel - Re: [PATCH 1/1] pagemap clear_refs: modify to specify anon or mapped vma clearing

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Date:	Wed, 29 Jul 2009 11:41:07 -0500
From:	Matt Mackall <mpm@...enic.com>
To:	Mel Gorman <mel@....ul.ie>
Cc:	Moussa Ba <moussa.a.ba@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, rientjes@...gle.com,
	xiyou.wangcong@...il.com, adobriyan@...il.com, yinghan@...gle.com,
	npiggin@...e.de, jaredeh@...il.com
Subject: Re: [PATCH 1/1] pagemap clear_refs: modify to specify anon or
 mapped vma clearing

On Wed, 2009-07-29 at 15:58 +0100, Mel Gorman wrote:
> Total aside, is there potential to really mess with LRU aging by abusing
> clear_refs a lot, partcularly as clear_refs is writable by the process
> owner? Does it matter?

Absolutely. However, it's generally the process owner who will suffer.

-- 
http://selenic.com : development and support for Mercurial and Linux


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