Message-ID: <53443E8C.4070906@linux.vnet.ibm.com>
Date: Tue, 08 Apr 2014 13:23:08 -0500
From: Nathan Fontenot <nfont@linux.vnet.ibm.com>
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To: Dave Hansen <dave.hansen@intel.com>, Li Zhong <zhong@linux.vnet.ibm.com>,
        Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
CC: LKML <linux-kernel@vger.kernel.org>, gregkh@linuxfoundation.org,
        Andrew Morton <akpm@linux-foundation.org>,
        KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
        KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
        Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Subject: Re: [RFC PATCH] memory driver: make phys_index/end_phys_index reflect
 the start/end section number
References: <1396429018.2913.19.camel@ThinkPad-T5421.cn.ibm.com> <533E0B0E.9020909@jp.fujitsu.com> <1396945659.3162.6.camel@ThinkPad-T5421.cn.ibm.com> <53442021.2060608@intel.com>
In-Reply-To: <53442021.2060608@intel.com>
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Sender: linux-kernel-owner@vger.kernel.org

On 04/08/2014 11:13 AM, Dave Hansen wrote:
> On 04/08/2014 01:27 AM, Li Zhong wrote:
>> If Dave and others don't have further objections, it seems this small
>> userspace incompatibility could be accepted by most of us, and I don't
>> need to make a version 2. 
> 
> Let me ask another question then.  What are the units of
> phys_index/end_phys_index?  How do we expose those units to userspace?
>

The documentation for these files just states that the files contain
the first and last section id of memory in the memory block for
phys_index and end_phys_index respectively.

I'm not sure the values have ever been units of anything, at least not
that I remember.

-Nathan
 

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