linux-kernel - Re: [patch 00/23] Slab defragmentation V6

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Message-ID: <Pine.LNX.4.64.0711081327120.10596@schroedinger.engr.sgi.com>
Date:	Thu, 8 Nov 2007 13:27:59 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Lee Schermerhorn <Lee.Schermerhorn@...com>
cc:	Mel Gorman <mel@....ul.ie>, akpm@...ux-foundatin.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [patch 00/23] Slab defragmentation V6

On Thu, 8 Nov 2007, Lee Schermerhorn wrote:

> > ZONE_MOVABLE also contains mlocked pages that are also not reclaimable. 
> > The question is at what level would it be possible to make them MOVABLE? 
> > It may take some improvements to the kick() methods to make eviction more 
> > reliable. Allowing the moving of objects in the kick() methods will 
> > likely get usthere.
> 
> Christoph:  Although mlocked pages are not reclaimable, they ARE
> migratable.  You fixed that a long time ago.  [And I just verified with
> memtoy.]  Doesn't this make them "movable"?

I know. They are movable but not reclaimable.
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