linux-kernel - Re: memory hotplug - looking for good place for cpuset hook

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Message-Id: <20060825184717.3dbb5325.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Fri, 25 Aug 2006 18:47:17 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Paul Jackson <pj@....com>
Cc:	haveblue@...ibm.com, linux-kernel@...r.kernel.org, anton@...ba.org,
	simon.derr@...l.net, nathanl@...tin.ibm.com, akpm@...l.org,
	GOTO <y-goto@...fujitsu.com>
Subject: Re: memory hotplug - looking for good place for cpuset hook

On Fri, 25 Aug 2006 01:53:59 -0700
Paul Jackson <pj@....com> wrote:

> >From what I see so far, the right place to call my cpuset routine to
> update its copy of node_online_map would be right after the call:
> 
> 	node_set_online(nid);
> 
> in the routine mm/memory_hotplug.c:add_memory().
> 
> Does that seem like a plausible sounding place to you?
> 
maybe

if (new_pgdat) {
	register_one_node(nid); <-- add sysfs entry of node
	<here>
}

is good.

(When I implements node-hotplug invoked by cpu-hotplug, I'll care cpuset.)

-Kame

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