linux-kernel - Re: [PATCH 3/3] cma: add functions to get region pages counters

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Date:	Tue, 30 Dec 2014 17:46:51 +0300
From:	Safonov Dmitry <d.safonov@...tner.samsung.com>
To:	Michal Nazarewicz <mina86@...a86.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	"Stefan I. Strogin" <s.strogin@...tner.samsung.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	aneesh.kumar@...ux.vnet.ibm.com,
	Laurent Pinchart <laurent.pinchart@...asonboard.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>
Subject: Re: [PATCH 3/3] cma: add functions to get region pages counters


On 12/30/2014 05:41 PM, Michal Nazarewicz wrote:
>> On Fri, Dec 26, 2014 at 05:39:04PM +0300, Stefan I. Strogin wrote:
>>> From: Dmitry Safonov <d.safonov@...tner.samsung.com>
>>> @@ -591,6 +621,10 @@ static int s_show(struct seq_file *m, void *p)
>>>   	struct cma_buffer *cmabuf;
>>>   	struct stack_trace trace;
>>>   
>>> +	seq_printf(m, "CMARegion stat: %8lu kB total, %8lu kB used, %8lu kB max contiguous chunk\n\n",
>>> +		   cma_get_size(cma) >> 10,
>>> +		   cma_get_used(cma) >> 10,
>>> +		   cma_get_maxchunk(cma) >> 10);
>>>   	mutex_lock(&cma->list_lock);
>>>   
>>>   	list_for_each_entry(cmabuf, &cma->buffers_list, list) {
> On Tue, Dec 30 2014, Joonsoo Kim <iamjoonsoo.kim@....com> wrote:
>> How about changing printing format like as meminfo or zoneinfo?
>>
>> CMARegion #
>> Total: XXX
>> Used: YYY
>> MaxContig: ZZZ
> +1.  I was also thinking about this actually.
>
Yeah, I thought about it. Sure.

-- 
Best regards,
Safonov Dmitry.

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