linux-kernel - Re: [RFC] Tracking mlocked pages and moving them off the LRU

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Message-Id: <1170664774.3073.1236.camel@laptopd505.fenrus.org>
Date:	Mon, 05 Feb 2007 09:39:34 +0100
From:	Arjan van de Ven <arjan@...radead.org>
To:	Christoph Lameter <clameter@....com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Nick Piggin <nickpiggin@...oo.com.au>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>
Subject: Re: [RFC] Tracking mlocked pages and moving them off the LRU

On Sun, 2007-02-04 at 23:57 -0800, Christoph Lameter wrote:
> Hmmm.. I have had no time to test this one yet but I think this should 
> work. It uses the delayed method and a new page flag PageMlocked() with 
> different semantics. Fix for page migration is also included.
> 
> Patch avoids to put new anonymous mlocked pages on the LRU. Maybe the same 
> could be done for new pagecache pages?
> 
> I still need a solution for the problem of not having enough page flag 
> bits on i386 NUMA.

I still don't get why you *really* need such a bit. 
-- 
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
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