Date: Thu, 2 Dec 2010 07:45:14 +0800
From: Shaohui Zheng <shaohui.zheng@intel.com>
To: David Rientjes <rientjes@google.com>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, haicheng.li@linux.intel.com,
        lethal@linux-sh.org, ak@linux.intel.com, shaohui.zheng@linux.intel.com,
        dave@linux.vnet.ibm.com, gregkh@suse.de,
        Haicheng Li <haicheng.li@intel.com>
Subject: Re: [8/8, v6] NUMA Hotplug Emulator: implement debugfs interface
 for memory probe
Message-ID: <20101201234514.GA13509@shaohui>
References: <20101130071324.908098411@intel.com>
 <20101130071437.461969179@intel.com>
 <alpine.DEB.2.00.1012011656590.1896@chino.kir.corp.google.com>
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On Wed, Dec 01, 2010 at 04:57:35PM -0800, David Rientjes wrote:
> On Tue, 30 Nov 2010, shaohui.zheng@intel.com wrote:
> 
> > From: Shaohui Zheng <shaohui.zheng@intel.com>
> > 
> > Implement a debugfs inteface /sys/kernel/debug/mem_hotplug/probe for meomory hotplug
> > emulation.  it accepts the same parameters like
> > /sys/devices/system/memory/probe.
> > 
> 
> NACK, we don't need two interfaces to do the same thing.  

You may not know the background, the sysfs memory/probe interface is a general
interface.  Even through we have a debugfs interface, we should still keep it.

For test purpose, the sysfs is enough, according to the comments from Greg & Dave,
we create the debugfs interface.

-- 
Thanks & Regards,
Shaohui

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