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

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Message-Id: <20060922115646.fd1040e8.akpm@osdl.org>
Date:	Fri, 22 Sep 2006 11:56:46 -0700
From:	Andrew Morton <akpm@...l.org>
To:	Christoph Lameter <clameter@....com>
Cc:	David Rientjes <rientjes@...washington.edu>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	kmannth@...ibm.com, linux-kernel@...r.kernel.org,
	clameter@...r.sgi.com
Subject: Re: [PATCH] do not free non slab allocated per_cpu_pageset

On Fri, 22 Sep 2006 11:43:32 -0700 (PDT)
Christoph Lameter <clameter@....com> wrote:

> On Fri, 22 Sep 2006, Andrew Morton wrote:
> 
> > I think I preferred my earlier fix, recently reworked as:
> 
> The problem is though that the pcp pointers must point to the static pcp 
> arrays for bootup to succeed under NUMA. Your patch may work under SMP. 
> For NUMA you may zap pointers to valid static pcps.

This is unclear to me.  Do you mean "the pcps must be usable during
process_zones()'s call to kmalloc_node())" or do you mean "the pcps must
always be usable" (in which case more work needs to be done) or what?
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