linux-ext4 - Re: [PATCH] Documentation/filesystems/ext3.txt

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: <4A12C3A4.90202@redhat.com>
Date:	Tue, 19 May 2009 09:35:16 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	Andrew Clayton <andrew@...ital-domain.net>
CC:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH] Documentation/filesystems/ext3.txt

Andrew Clayton wrote:
> Update the ext3 document with the fact that data=writeback is now the
> default journaling mode.
> 
> 
> Signed-off-by: Andrew Clayton <andrew@...ital-domain.net>
> 
> --- linux-2.6/Documentation/filesystems/ext3.txt.orig	2009-05-18 20:48:27.084220753 +0100
> +++ linux-2.6/Documentation/filesystems/ext3.txt	2009-05-18 20:49:01.023225288 +0100
> @@ -39,11 +39,11 @@
>  data=journal		All data are committed into the journal prior to being
>  			written into the main file system.
>  
> -data=ordered	(*)	All data are forced directly out to the main file
> +data=ordered		All data are forced directly out to the main file
>  			system prior to its metadata being committed to the
>  			journal.
>  
> -data=writeback		Data ordering is not preserved, data may be written
> +data=writeback	(*)	Data ordering is not preserved, data may be written
>  			into the main file system after its metadata has been
>  			committed to the journal.

If we're updating this documentation, while we're at it we should add
that the default is actually controlled by a new kernel config option,
and also something along the lines of "this mode will produce file
corruption on a power loss or unclean shutdown, and may lead to
unintentional information disclosure."

-Eric
--
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