linux-kernel - Re: [BUGFIX][PATCH] oom-kill: fix NUMA consraint check with nodemask v3

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Date:	Wed, 11 Nov 2009 12:10:28 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	David Rientjes <rientjes@...gle.com>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Lameter <cl@...ux-foundation.org>
Subject: Re: [BUGFIX][PATCH] oom-kill: fix NUMA consraint check with
 nodemask v3

On Wed, 11 Nov 2009 12:02:06 +0900 (JST)
KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote:

> > There should be a way around that, however.  Shouldn't
> > 
> > 	if (nodes_subset(node_states[N_HIGH_MEMORY], *nodemask))
> > 		return CONSTRAINT_MEMORY_POLICY;
> > 
> > be sufficient?
> 
> Is this safe on memory hotplug case?
> 
N_HIGH_MEMORY is updated at memory hotplug.

Thanks,
-Kame

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