linux-kernel - Re: [RFC, 3/7] NUMA hotplug emulator

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Message-ID: <20100513165511.GB25212@suse.de>
Date:	Thu, 13 May 2010 09:55:11 -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,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	David Rientjes <rientjes@...gle.com>,
	Alex Chiang <achiang@...com>, linux-kernel@...r.kernel.org,
	ak@...ux.intel.com, fengguang.wu@...el.com,
	haicheng.li@...ux.intel.com, shaohui.zheng@...ux.intel.com
Subject: Re: [RFC, 3/7] NUMA hotplug emulator

On Thu, May 13, 2010 at 07:48:35PM +0800, Shaohui Zheng wrote:
> Userland interface to hotplug-add fake offlined nodes.

Why include 2 copies of the patch in one email?

> Add a sysfs entry "probe" under /sys/devices/system/node/:
> 
>  - to show all fake offlined nodes:
>     $ cat /sys/devices/system/node/probe
> 
>  - to hotadd a fake offlined node, e.g. nodeid is N:
>     $ echo N > /sys/devices/system/node/probe

As you are trying to add a new sysfs file, please create the matching
Documentation/ABI/ file as well.

Also note that sysfs files are "one value per file", which I don't think
this file follows, right?

thanks,

greg k-h
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