linux-kernel - Re: [RFC] [PATCH] more support for memory-less-node.

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Message-ID: <Pine.LNX.4.64.0702130924370.23752@schroedinger.engr.sgi.com>
Date:	Tue, 13 Feb 2007 09:25:00 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
cc:	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
	akpm@...l.org, bob.picco@...com
Subject: Re: [RFC] [PATCH] more support for memory-less-node.

On Tue, 13 Feb 2007, KAMEZAWA Hiroyuki wrote:

> NOD_DATA(nid) is always valid pointer if a node is online.
> NODE_DATA(nid)->present_pages can be 0 even if a node is online, 
> I call this as memory-less-node.

Yes but the pgdat will have no valid zone in it. That is new.


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