linux-kernel - Re: [RFC, 6/7] NUMA hotplug emulator

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Message-ID: <20100513165603.GC25212@suse.de>
Date:	Thu, 13 May 2010 09:56:03 -0700
From:	Greg KH <gregkh@...e.de>
To:	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,
	Andi Kleen <ak@...ux.intel.com>,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	linux-kernel@...r.kernel.org, haicheng.li@...ux.intel.com,
	shaohui.zheng@...ux.intel.com
Subject: Re: [RFC, 6/7] NUMA hotplug emulator

On Thu, May 13, 2010 at 08:00:16PM +0800, Shaohui Zheng wrote:
> hotplug emulator:extend memory probe interface to support NUMA
> 
> Extend memory probe interface to support an extra paramter nid,
> the reserved memory can be added into this node if node exists.
> 
> Add a memory section(128M) to node 3(boots with mem=1024m)
> 
> 	echo 0x40000000,3 > memory/probe
> 
> And more we make it friendly, it is possible to add memory to do
> 
> 	echo 3g > memory/probe
> 	echo 1024m,3 > memory/probe
> 
> It maintains backwards compatibility.

Again, please document this.

thanks,

greg k-h
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