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Date: Tue, 9 Oct 2007 11:50:19 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
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To: Pekka Enberg <penberg@cs.helsinki.fi>
cc: Akinobu Mita <akinobu.mita@gmail.com>, linux-kernel@vger.kernel.org,
       Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH -mm] slub: fix cpu hotplug offline/online path
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On Tue, 9 Oct 2007, Pekka Enberg wrote:

> Hi Christoph,
> 
> On 10/9/07, Christoph Lameter <clameter@sgi.com> wrote:
> > Could you check if a per cpu structure has already been allocated and then
> > simply skip the call to init? Otherwise we end up with lots of per cpu
> > structures for cpus that will never show up.
> 
> Does it matter? How?

Our system come by default with the possibility of 1k cpus. However, a 
small system may only have 8 cpus.