From: Hans Reiser <reiser@namesys.com>
To: Chris Mason <mason@suse.com>
Cc: Peter Zaitsev <peter@mysql.com>, Jens Axboe <axboe@suse.de>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: True fsync() in Linux (on IDE)
Date: Fri, 19 Mar 2004 23:04:45 +0300 [thread overview]
Message-ID: <405B525D.6080006@namesys.com> (raw)
In-Reply-To: <1079726221.11058.174.camel@watt.suse.com>
Chris Mason wrote:
>On Fri, 2004-03-19 at 14:36, Hans Reiser wrote:
>
>
>
>>I hope I am totally off-base and not understanding you.... Please help
>>me here.
>>
>>
>
>Lets look at actual scope of the problem:
>
>filesystem metadata
>filesystem data (fsync, O_SYNC, O_DIRECT)
>block device data (fsync, O_SYNC, O_DIRECT)
>
>Multiply the cases above times each filesystem and also times md and
>device mapper, since the barriers need to aggregate down to all the
>drives.
>
>In other words, just fixing fsync in 2.4 is not enough, and there is
>still considerable development needed in 2.6. Maybe after all the 2.6
>changes are done and accepted we can consider backporting parts of it to
>2.4.
>
>-chris
>
>
>
>
>
>
In 2.6 does fsync always insert a write barrier when the metadata
journaling option is set for reiserfs?
--
Hans
next prev parent reply other threads:[~2004-03-19 20:04 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-18 1:08 True fsync() in Linux (on IDE) Peter Zaitsev
2004-03-18 6:47 ` Jens Axboe
2004-03-18 11:34 ` Matthias Andree
2004-03-18 11:55 ` Jens Axboe
2004-03-18 12:21 ` Matthias Andree
2004-03-18 12:37 ` Jens Axboe
2004-03-18 11:58 ` (no subject) Daniel Czarnecki
2004-03-18 19:44 ` True fsync() in Linux (on IDE) Peter Zaitsev
2004-03-18 19:47 ` Jens Axboe
2004-03-18 20:11 ` Chris Mason
2004-03-18 20:17 ` Peter Zaitsev
2004-03-18 20:33 ` Chris Mason
2004-03-18 20:46 ` Peter Zaitsev
2004-03-18 21:02 ` Chris Mason
2004-03-18 21:09 ` Peter Zaitsev
2004-03-18 21:19 ` Chris Mason
2004-03-19 8:05 ` Hans Reiser
2004-03-19 13:52 ` Chris Mason
2004-03-19 19:26 ` Peter Zaitsev
2004-03-19 20:23 ` Chris Mason
2004-03-19 20:31 ` Hans Reiser
2004-03-19 20:38 ` Chris Mason
2004-03-19 20:48 ` Hans Reiser
2004-03-19 20:56 ` Chris Mason
2004-03-20 11:04 ` Hans Reiser
2004-03-19 19:36 ` Hans Reiser
2004-03-19 19:57 ` Chris Mason
2004-03-19 20:04 ` Hans Reiser [this message]
2004-03-19 20:15 ` Chris Mason
2004-03-19 20:06 ` Peter Zaitsev
2004-03-19 22:03 ` Matthias Andree
2004-03-20 10:20 ` Jamie Lokier
2004-03-20 19:48 ` Peter Zaitsev
-- strict thread matches above, loose matches on Subject: below --
2004-03-22 13:08 Heikki Tuuri
2004-03-22 13:23 ` Jens Axboe
2004-03-22 15:17 ` Matthias Andree
2004-03-22 15:35 ` Christoph Hellwig
2004-03-22 19:12 ` Christoffer Hall-Frederiksen
2004-03-22 20:28 ` Matthias Andree
2004-03-22 19:33 ` Hans Reiser
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