linux-kernel - RE: [PATCH] mm/zram: correct ZRAM

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Message-id: <000001cffee1$28362ed0$78a28c70$%yang@samsung.com>
Date:	Thu, 13 Nov 2014 09:27:33 +0800
From:	Weijie Yang <weijie.yang@...sung.com>
To:	'Mahendran Ganesh' <opensource.ganesh@...il.com>
Cc:	'Minchan Kim' <minchan@...nel.org>, ngupta@...are.org,
	sergey.senozhatsky@...il.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: RE: [PATCH] mm/zram: correct ZRAM_ZERO flag bit position

On Thu, Nov 13, 2014 at 8:02 AM, Minchan Kim <minchan@...nel.org> wrote:
> On Wed, Nov 12, 2014 at 10:37:18PM +0800, Mahendran Ganesh wrote:
>> In struct zram_table_entry, the element *value* contains obj size and
>> obj zram flags. Bit 0 to bit (ZRAM_FLAG_SHIFT - 1) represent obj size,
>> and bit ZRAM_FLAG_SHIFT to the highest bit of unsigned long represent obj
>> zram_flags. So the first zram flag(ZRAM_ZERO) should be from ZRAM_FLAG_SHIFT
>> instead of (ZRAM_FLAG_SHIFT + 1).
>>
>> This patch fixes this issue.
>>
>> Also this patch fixes a typo, "page in now accessed" -> "page is now accessed"
>>
>> Signed-off-by: Mahendran Ganesh <opensource.ganesh@...il.com>
> Acked-by: Minchan Kim <minchan@...nel.org>

Acked-by: Weijie Yang <weijie.yang@...sung.com>

> To be clear about "fixes this issue", it's not a bug but just clean up
> so it doesn't change any behavior.
>
> Thanks!
>
> --
> Kind regards,
> Minchan Kim
> --
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