linux-kernel - Re: 2.6.22 -mm merge plans: slub

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Message-ID: <Pine.LNX.4.64.0705011403470.26819@schroedinger.engr.sgi.com>
Date:	Tue, 1 May 2007 14:08:50 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Hugh Dickins <hugh@...itas.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: 2.6.22 -mm merge plans: slub

On Tue, 1 May 2007, Hugh Dickins wrote:

> Yes, to me it does.  If it could be defaulted to on throughout the
> -rcs, on every architecture, then I'd say that's "finishing work";
> and we'd be safe knowing we could go back to slab in a hurry if
> needed.  But it hasn't reached that stage yet, I think.

Why would we need to go back to SLAB if we have not switched to SLUB? SLUB 
is marked experimental and not the default.

The only problems that I am aware of is(or was) the issue with arches 
modifying page struct fields of slab pages that SLUB needs for its own 
operations. And I thought it was all fixed since the powerpc guys were 
quiet and the patch was in for i386.
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