linux-kernel - Re: [RESEND][PATCH 3/3] mem-hotplug: fix potential race while building zonelist for new populated zone

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Message-ID: <alpine.DEB.2.00.1005180853400.15028@router.home>
Date:	Tue, 18 May 2010 08:55:12 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Haicheng Li <haicheng.li@...ux.intel.com>
cc:	Wu Fengguang <fengguang.wu@...el.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>, Mel Gorman <mel@....ul.ie>,
	Tejun Heo <tj@...nel.org>
Subject: Re: [RESEND][PATCH 3/3] mem-hotplug: fix potential race while building
 zonelist for new populated zone

On Tue, 18 May 2010, Haicheng Li wrote:

> +extern struct mutex zonelists_pageset_mutex;

The mutext is used for multiple serializations having to do with zones.
"pageset" suggests its only for pagesets.

So

	zones_mutex?

or

	zonelists_mutex?

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