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Date: Wed, 21 Jan 2015 17:18:29 +0300
From: Stefan Strogin <s.strogin@partner.samsung.com>
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To: Laura Abbott <lauraa@codeaurora.org>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Michal Nazarewicz <mina86@mina86.com>, aneesh.kumar@linux.vnet.ibm.com,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Dmitry Safonov <d.safonov@partner.samsung.com>,
        Pintu Kumar <pintu.k@samsung.com>,
        Weijie Yang <weijie.yang@samsung.com>,
        SeongJae Park <sj38.park@gmail.com>, Hui Zhu <zhuhui@xiaomi.com>,
        Minchan Kim <minchan@kernel.org>, Dyasly Sergey <s.dyasly@samsung.com>,
        Vyacheslav Tyrtov <v.tyrtov@samsung.com>,
        s.strogin@partner.samsung.com, stefan.strogin@gmail.com
Subject: Re: [PATCH 2/3] mm: cma: introduce /proc/cmainfo
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Hello Laura,

On 30/12/14 00:11, Laura Abbott wrote:
>
> This seems better suited to debugfs over procfs, especially since the
> option can be turned off. It would be helpful to break it
> down by cma region as well to make it easier on systems with a lot
> of regions.
>
> Thanks,
> Laura
>

I thought that cmainfo is very similar to vmallocinfo, therefore put it
to procfs. However it seems I have no other choice than debugfs as Pavel
Machek wrote :-)
> We should not add new non-process related files in /proc.
(https://lkml.org/lkml/2015/1/2/6)

And thanks, I agree that breaking it down by CMA region would be useful.