linux-kernel - Re: [PATCH v6, part3 15/16] mm: report available pages as "MemTotal" for each NUMA node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <518EA49F.50206@cogentembedded.com>
Date:	Sun, 12 May 2013 00:05:51 +0400
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Jiang Liu <liuj97@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Jiang Liu <jiang.liu@...wei.com>,
	David Rientjes <rientjes@...gle.com>,
	Wen Congyang <wency@...fujitsu.com>,
	Mel Gorman <mgorman@...e.de>, Minchan Kim <minchan@...nel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	David Howells <dhowells@...hat.com>,
	Mark Salter <msalter@...hat.com>,
	Jianguo Wu <wujianguo@...wei.com>, linux-mm@...ck.org,
	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6, part3 15/16] mm: report available pages as "MemTotal"
 for each NUMA node

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@...wei.com>
> Reported-by: sworddragon2@....com
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: Mel Gorman <mgorman@...e.de>
> Cc: Minchan Kim <minchan@...nel.org>
> Cc: linux-mm@...ck.org
> Cc: linux-kernel@...r.kernel.org

WBR, Sergei

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/