linux-kernel - Re: [PATCH] [0/4] SLAB: Fix a couple of slab memory hotadd issues

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Message-ID: <87636bv3eq.fsf@basil.nowhere.org>
Date:	Fri, 05 Feb 2010 21:22:21 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Christoph Lameter <cl@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, haicheng.li@...el.com,
	penberg@...helsinki.fi, linux-mm@...ck.org
Subject: Re: [PATCH] [0/4] SLAB: Fix a couple of slab memory hotadd issues

Christoph Lameter <cl@...ux-foundation.org> writes:

> On Wed, 3 Feb 2010, Andi Kleen wrote:
>
>> This fixes various problems in slab found during memory hotadd testing.
>
> It changes the bootstrap semantics. The requirement was so far that slab
> initialization must be complete before slab operations can be used.

The problem is that slab itself uses slab it initialize itself.

> This patchset allows such use before bootstrap on a node is complete and
> also allows the running of cache reaper before bootstrap is done.
>
> I have a bad feeling that this could be the result of Pekka's changes to
> the bootstrap.

Not sure I fully follow what you're saying.

Are you saying this is a regression fix after all?

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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