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

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]

Date:	Thu, 13 Nov 2014 21:54:19 +0800
From:	Ganesh Mahendran <opensource.ganesh@...il.com>
To:	Minchan Kim <minchan@...nel.org>
Cc:	Nitin Gupta <ngupta@...are.org>, weijie.yang@...sung.com,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/zram: correct ZRAM_ZERO flag bit position

2014-11-13 8:02 GMT+08:00 Minchan Kim <minchan@...nel.org>:
> 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>

Thanks!

>
> 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
--
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/