linux-kernel - Re: [RFC] memory hotremove patch take 2 [03/10] (drain all pages)

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Message-ID: <Pine.LNX.4.64.0705101105350.10002@schroedinger.engr.sgi.com>
Date:	Thu, 10 May 2007 11:07:08 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Yasunori Goto <y-goto@...fujitsu.com>
cc:	Linux Kernel ML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>, Andrew Morton <akpm@...l.org>,
	Mel Gorman <mel@....ul.ie>
Subject: Re: [RFC] memory hotremove patch take 2 [03/10] (drain all pages)

On Wed, 9 May 2007, Yasunori Goto wrote:

> This patch add function drain_all_pages(void) to drain all 
> pages on per-cpu-freelist.
> Page isolation will catch them in free_one_page.

This is only draining the pcps of the local processor. I would think 
that you need to drain all other processors pcps of this zone as well. And 
there is no need to drain this processors pcps of other zones.

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