linux-kernel - Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes

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Message-Id: <1158799073.7207.35.camel@galaxy.corp.google.com>
Date:	Wed, 20 Sep 2006 17:37:53 -0700
From:	Rohit Seth <rohitseth@...gle.com>
To:	Christoph Lameter <clameter@....com>
Cc:	Andi Kleen <ak@...e.de>,
	CKRM-Tech <ckrm-tech@...ts.sourceforge.net>, devel@...nvz.org,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes

On Wed, 2006-09-20 at 17:23 -0700, Christoph Lameter wrote:
> On Wed, 20 Sep 2006, Andi Kleen wrote:
> 
> > There are lots of different cases. At least for anonymous memory 
> > ->mapping should be free. Perhaps that could be used for anonymous
> > memory and a separate data structure for the important others.
> 
> mapping is used for swap and to point to the anon vma.
> 
> > slab should have at least one field free too, although it might be a different
> > one (iirc Christoph's rewrite uses more than the current slab, but it would
> > surprise me if he needed all) 
> 
> slab currently has lots of fields free but my rewrite uses all of them.
> And AFAICT this patchset does not track slab pages.
> 

Currently it doesn't track kernel memory.  That is why I don't want to
over load any of the existing fields.

> Hmm.... Build a radix tree with pointers to the pages?
> 

...my preference is to leave it in page struct...that has non-zero cost.

-rohit 

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