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Date: Sun, 12 May 2013 00:05:51 +0400
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
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Subject: Re: [PATCH v6, part3 15/16] mm: report available pages as "MemTotal"
 for each NUMA node
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To: Jiang Liu <liuj97@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>, Jiang Liu <jiang.liu@huawei.com>, David Rientjes <rientjes@google.com>, Wen Congyang <wency@cn.fujitsu.com>, Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan@kernel.org>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, Michal Hocko <mhocko@suse.cz>, James Bottomley <James.Bottomley@HansenPartnership.com>, David Howells <dhowells@redhat.com>, Mark Salter <msalter@redhat.com>, Jianguo Wu <wujianguo@huawei.com>, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org

Hello.

On 05/11/2013 09:34 PM, Jiang Liu wrote:

    I've noticed a small typo in the changelog.

> As reported by https://bugzilla.kernel.org/show_bug.cgi?id=53501,
> "MemTotal" from /proc/meminfo means memory pages managed by the buddy
> system (managed_pages), but "MemTotal" from /sys/.../node/nodex/meminfo
> means phsical pages present (present_pages) within the NUMA node.

     s/phsical/physical/

> There's a difference between managed_pages and present_pages due to
> bootmem allocator and reserved pages.
>
> And Documentation/filesystems/proc.txt says
>      MemTotal: Total usable ram (i.e. physical ram minus a few reserved
>                bits and the kernel binary code)
>
> So change /sys/.../node/nodex/meminfo to report available pages within
> the node as "MemTotal".
>
> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
> Reported-by: sworddragon2@aol.com
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Mel Gorman <mgorman@suse.de>
> Cc: Minchan Kim <minchan@kernel.org>
> Cc: linux-mm@kvack.org
> Cc: linux-kernel@vger.kernel.org

WBR, Sergei

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