linux-kernel - Re: [PATCH 0/4] mm: cma: add some debug information for CMA

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Date:	Mon, 16 Feb 2015 22:29:27 +0300
From:	Stefan Strogin <s.strogin@...tner.samsung.com>
To:	Gioh Kim <gioh.kim@....com>, Joonsoo Kim <iamjoonsoo.kim@....com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Michal Nazarewicz <mina86@...a86.com>,
	aneesh.kumar@...ux.vnet.ibm.com,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Dmitry Safonov <d.safonov@...tner.samsung.com>,
	Pintu Kumar <pintu.k@...sung.com>,
	Weijie Yang <weijie.yang@...sung.com>,
	Laura Abbott <lauraa@...eaurora.org>,
	SeongJae Park <sj38.park@...il.com>,
	Hui Zhu <zhuhui@...omi.com>, Minchan Kim <minchan@...nel.org>,
	Dyasly Sergey <s.dyasly@...sung.com>,
	Vyacheslav Tyrtov <v.tyrtov@...sung.com>,
	gregory.0xf0@...il.com, sasha.levin@...cle.com, pavel@....cz,
	stefan.strogin@...il.com
Subject: Re: [PATCH 0/4] mm: cma: add some debug information for CMA

Hello Gioh,

Thank you for your answer.

On 14/02/15 10:40, Gioh Kim wrote:
>>
>> If this tracer is justifiable, I think that making it conditional is
>> better than just enabling always on CONFIG_CMA_DEBUGFS. Some users
>> don't want to this feature although they enable CONFIG_CMA_DEBUGFS.
>>
>> Thanks.
>>
> 
> Hello,
> 
> Thanks for your work. It must be helpful to me.
> 
> What about add another option to activate stack-trace?
> In my platform I know all devices using cma area, so I usually don't
> need stack-trace.
> 

So Joonsoo suggests to add an option for buffer list, and you suggest to
add another in addition to the first one (and also add CONFIG_STACKTRACE
to dependences) right?
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