2011-02-08 17:30:32

by Sedat Dilek

Subject: [ext4] Multiple page-io submission (Option "mblk_io_submit")

Hi,

while looking at pending patches in ext4.git#{master, for_linus}, I
saw "ext4: Fix data corruption with multi-block writepages support"
which should fix [2] according to text in the commit-body.

Are you planning to turn on "multiple page-io submission" again by
default (as is was disabled in "ext4: Turn off multiple page-io
submission by default" [3])?

Regards,
- Sedat -

[1] http://git.kernel.org/?p=linux/kernel/git/tytso/ext4.git;a=commit;h=d50bdd5aa55127635fd8a5c74bd2abb256bd34e3
[2] http://git.kernel.org/?p=linux/kernel/git/tytso/ext4.git;a=commit;h=bd2d0210cf22f2bd0cef72eb97cf94fc7d31d8cc
[3] http://git.kernel.org/?p=linux/kernel/git/tytso/ext4.git;a=commit;h=1449032be17abb69116dbc393f67ceb8bd034f92

2011-02-09 18:38:22

by Theodore Ts'o

Subject: Re: [ext4] Multiple page-io submission (Option "mblk_io_submit")

On Tue, Feb 08, 2011 at 06:30:29PM +0100, Sedat Dilek wrote:
> Hi,
>
> while looking at pending patches in ext4.git#{master, for_linus}, I
> saw "ext4: Fix data corruption with multi-block writepages support"
> which should fix [2] according to text in the commit-body.
>
> Are you planning to turn on "multiple page-io submission" again by
> default (as is was disabled in "ext4: Turn off multiple page-io
> submission by default" [3])?

I'm planning on turning it on by default post 2.6.38, during the
2.6.39-rc1 merge window. That's me being paranoid, since this is so
late in the -rc cycle for 2.6.38.

- Ted

2011-03-23 07:32:31

by Sedat Dilek

Subject: Re: [ext4] Multiple page-io submission (Option "mblk_io_submit")

On Wed, Feb 9, 2011 at 7:38 PM, Ted Ts'o <[email protected]> wrote:
> On Tue, Feb 08, 2011 at 06:30:29PM +0100, Sedat Dilek wrote:
>> Hi,
>>
>> while looking at pending patches in ext4.git#{master, for_linus}, I
>> saw "ext4: Fix data corruption with multi-block writepages support"
>> which should fix [2] according to text in the commit-body.
>>
>> Are you planning to turn on "multiple page-io submission" again by
>> default (as is was disabled in "ext4: Turn off multiple page-io
>> submission by default" [3])?
>
> I'm planning on turning it on by default post 2.6.38, during the
> 2.6.39-rc1 merge window.  That's me being paranoid, since this is so
> late in the -rc cycle for 2.6.38.
>
>                                                - Ted
>

Ping!
(As the merge-window is still open.)

- Sedat -