linux-kernel - Re: [RFC,2/7] NUMA Hotplug emulator

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Message-ID: <20100514080732.GC3296@balbir.in.ibm.com>
Date:	Fri, 14 May 2010 13:37:32 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Paul Mundt <lethal@...ux-sh.org>
Cc:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Shaohui Zheng <shaohui.zheng@...el.com>,
	akpm@...ux-foundation.org, linux-mm@...ck.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Yinghai Lu <yinghai@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Mel Gorman <mel@....ul.ie>,
	Lee Schermerhorn <lee.schermerhorn@...com>,
	linux-kernel@...r.kernel.org, ak@...ux.intel.co,
	fengguang.wu@...el.com, haicheng.li@...ux.intel.com,
	shaohui.zheng@...ux.intel.com
Subject: Re: [RFC,2/7] NUMA Hotplug emulator

* Paul Mundt <lethal@...ux-sh.org> [2010-05-14 14:42:26]:

> On Fri, May 14, 2010 at 11:16:15AM +0900, KAMEZAWA Hiroyuki wrote:
> > On Thu, 13 May 2010 19:45:44 +0800
> > Shaohui Zheng <shaohui.zheng@...el.com> wrote:
> > 
> > > x86: infrastructure of NUMA hotplug emulation
> > > 
> > 
> > Hmm. do we have to create this for x86 only ?
> > Can't we live with lmb ? as
> > 
> > 	lmb_hide_node() or some.
> > 
> > IIUC, x86-version lmb is now under development.
> > 
> Indeed. There is very little x86-specific about this patch series at all
> except for the e820 bits and tying in the CPU topology. Most of what this
> series is doing wrapping around e820 could be done on top of LMB, which
> would also make it possible to use on non-x86 architectures.
>

Yes, that would be very nice addition 

-- 
	Three Cheers,
	Balbir
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