linux-kernel - Re: [PATCH] do not free non slab allocated per_cpu

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Date:	Fri, 22 Sep 2006 12:10:10 -0700 (PDT)
From:	David Rientjes <rientjes@...washington.edu>
To:	Christoph Lameter <clameter@....com>
cc:	Andrew Morton <akpm@...l.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	kmannth@...ibm.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] do not free non slab allocated per_cpu_pageset

On Fri, 22 Sep 2006, Christoph Lameter wrote:

> The pcps must be usable during process_zones() for NUMA bootstrap. 
> As far as I recall: A cpu is booted with the static arrays and later 
> process_zones is replacing the references to the static arrays.
> 

Yes, they are replaced as soon as the slab allocator is up.  So all we 
need is to prevent static pcp's from being free'd since they haven't yet 
matured to being slab.

		David
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