linux-kernel - Re: [2.6.20][PATCH] fix mempolicy error check on a system with memory-less-node

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Date:	Wed, 7 Feb 2007 00:04:41 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
cc:	linux-kernel@...r.kernel.org, y-goto@...fujitsu.com,
	clameter@...r.sgi.com, akpm@...l.org
Subject: Re: [2.6.20][PATCH] fix mempolicy error check on a system with
 memory-less-node

On Wed, 7 Feb 2007, KAMEZAWA Hiroyuki wrote:

> > Hmmm... Remove the node from the node_online_map instead?
> > 
> Changing defintion of node_online_map is harmfil. (there are cpu-only-nodes.)
> How about adding  nodemask for nodes equips memory ?

Ok that is better but...

Would it be possible to attach the cpus to the 
next nodes with memory and mark the node offline? That way we could avoid 
another mask that we constantly have to check?

Or fix the location where the error occurred to be able to tolerate a node 
with no zones?

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