linux-ext4 - Re: dead/wrong code in ext3/4

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]

Message-ID: <4FF1D712.3060402@ya.ru>
Date:	Mon, 02 Jul 2012 21:14:58 +0400
From:	Andrew Perepechko <anserper@...ru>
To:	Jan Kara <jack@...e.cz>
CC:	linux-ext4@...r.kernel.org
Subject: Re: dead/wrong code in ext3/4_releasepage()

Hi Jan!
So you think the correct fix would be to remove the check completely
since every try_to_release_page() caller is obliged to perform the
page_has_private() check?
Thank you,
Andrew
On 07/02/2012 09:09 PM, Jan Kara wrote:
> On Fri 29-06-12 20:52:51, Andrew Perepechko wrote:
>> This does not lead to oom or any similar issue since calls to
>> try_to_release_page()
>> are accompanied by page_has_private() checks.
>>
>>
>    The check is a dead code because ->release_page() is called only if
> PagePrivate bit is set.
>
> 								Honza

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html