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From: Chris Mason <mason@suse.com>
To: Andrew Morton <akpm@zip.com.au>, Hans Reiser <reiser@namesys.com>
Cc: Joshua Schmidlkofer <menion@srci.iwpsd.org>,
	kernel <linux-kernel@vger.kernel.org>,
	"Gryaznova E." <grev@namesys.botik.ru>,
	"Vladimir V. Saveliev" <monstr@namesys.com>
Subject: Re: ReiserFS / 2.4.6 / Data Corruption
Date: Mon, 30 Jul 2001 11:24:16 -0400	[thread overview]
Message-ID: <272900000.996506656@tiny> (raw)



On Saturday, July 28, 2001 03:28:05 AM +1000 Andrew Morton
<akpm@zip.com.au> wrote:

[ patch to trigger data writes before commit in reiserfs ]

> 
> There's no disruption to disk format - it just simulates
> the user typing `sync' at the right time.  I think the
> concept is sound, and I'm sure Chris can find a more efficient
> way...

Well, its gets points for simplicity ;-)  

What I think we need is for commit_write to put new buffers a per super
list of new buffers, and then the journal code can flush that list on
commit.

Since all the filesystems already mark things BH_New, it seems a good
choice to let commit_write look for BH_New buffers and put them on this new
list.  But, the only place BH_New seems to get cleared right now is
unmap_buffer, which only gets called from block_flushpage.

Is there any reason we can't just clear BH_New before writing the buffer
out?  It looks like a bug to leave it set the way we do now.

-chris


             reply	other threads:[~2001-07-30 15:25 UTC|newest]

Thread overview: 134+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-07-30 15:24 Chris Mason [this message]
2001-07-30 15:47 ` ReiserFS / 2.4.6 / Data Corruption Andrew Morton
2001-07-30 16:04   ` Chris Mason
  -- strict thread matches above, loose matches on Subject: below --
2001-07-27 15:13 Cress, Andrew R
     [not found] <no.id>
2001-07-27 13:27 ` Alan Cox
2001-07-27 13:38   ` bvermeul
2001-07-27 13:39     ` Alan Cox
2001-07-27 13:47       ` bvermeul
2001-07-27 13:49         ` Alan Cox
2001-07-28 14:16       ` Matthew Gardiner
2001-08-08 18:42       ` Stephen C. Tweedie
2001-07-27 14:16   ` Philip R. Auld
2001-07-27 14:38     ` Jordan
2001-07-27 14:51     ` Hans Reiser
2001-07-27 15:12       ` Philip R. Auld
2001-07-27 14:23   ` Hans Reiser
2001-07-27 14:21 ` Alan Cox
2001-07-28 14:18   ` Matthew Gardiner
2001-07-28 16:25     ` Alan Cox
2001-07-29 10:15       ` Matthew Gardiner
2001-07-29 11:10         ` Chris Wedgwood
2001-07-29 14:28           ` Luigi Genoni
2001-07-29 11:16     ` Christoph Hellwig
2001-07-27 15:06 ` Alan Cox
2001-07-27 15:26   ` Joshua Schmidlkofer
2001-07-27 15:46     ` Hans Reiser
2001-07-27 17:46       ` Christoph Rohland
2001-07-27 18:02         ` Hans Reiser
2001-07-27 18:10       ` Dustin Byford
2001-07-27 19:20         ` Hans Reiser
2001-07-28 16:10       ` Henning P. Schmiedehausen
2001-07-27 15:31   ` Hans Reiser
2001-07-27 16:25     ` Kip Macy
2001-07-27 17:29       ` Ville Herva
2001-07-27 17:40         ` Alan Cox
2001-07-27 17:43           ` Ville Herva
2001-07-27 20:46   ` Lehmann 
2001-07-27 21:13     ` Hans Reiser
2001-07-27 15:51 ` Alan Cox
2001-07-27 16:41   ` Hans Reiser
2001-07-27 16:55 ` Alan Cox
2001-07-27 21:24 ` Alan Cox
2001-07-27 21:47   ` Hans Reiser
2001-07-27 22:10 ` Alan Cox
2001-07-28  7:36   ` Hans Reiser
2001-07-28 14:08     ` Chris Mason
2001-07-18  4:14 Sam Thompson
2001-07-18  5:18 ` Steve Kieu
2001-07-18 16:22   ` Erik Mouw
2001-07-19  2:02     ` Steve Kieu
2001-07-19 13:28       ` Hans Reiser
2001-07-19 15:50       ` Erik Mouw
2001-07-27 12:52     ` bvermeul
2001-07-27 12:55       ` Hans Reiser
2001-07-27 13:24         ` bvermeul
2001-07-27 14:18           ` Joshua Schmidlkofer
2001-07-27 14:55             ` Hans Reiser
2001-07-27 15:02               ` Chris Wedgwood
2001-07-27 16:06                 ` Henning P. Schmiedehausen
2001-07-27 22:02                 ` Luigi Genoni
2001-07-28 13:45               ` Matthew Gardiner
2001-07-28 16:15                 ` Hans Reiser
2001-07-28 16:45                 ` Marcus Meissner
2001-07-28 16:45                 ` Christoph Hellwig
2001-07-29 10:19                   ` Matthew Gardiner
2001-07-29 11:04                     ` Chris Wedgwood
2001-07-30 10:08                   ` Hans Reiser
2001-07-30 19:06                     ` Christoph Hellwig
2001-07-30 20:30                       ` Hans Reiser
2001-07-30 20:49                         ` Christoph Hellwig
2001-07-30 21:05                           ` Hans Reiser
2001-07-30 21:29                             ` Christoph Hellwig
2001-07-30 21:44                               ` Hans Reiser
2001-07-30 21:48                               ` Hans Reiser
2001-07-30 21:57                                 ` Chris Wedgwood
2001-07-30 21:58                                   ` Christoph Hellwig
2001-07-31  7:45                                 ` Henning P. Schmiedehausen
2001-07-31  9:55                                   ` Hans Reiser
2001-07-31 10:24                                     ` Arjan van de Ven
2001-07-31 10:24                                     ` Anders Eriksson
2001-07-31 10:32                                       ` Chris Wedgwood
2001-07-30 21:59                             ` Rik van Riel
2001-07-30 22:34                               ` Hans Reiser
2001-07-31 11:34                                 ` David Weinehall
2001-07-30 22:41                               ` Kip Macy
2001-07-30 22:50                                 ` Christoph Hellwig
2001-07-30 21:13                           ` Hans Reiser
2001-07-30 21:21                           ` Hans Reiser
2001-07-30 21:49                             ` Christoph Hellwig
2001-07-31  2:34                               ` Andrew Morton
2001-07-30 22:04                             ` Rik van Riel
2001-07-30 22:36                               ` Hans Reiser
2001-07-30 22:53                                 ` Rik van Riel
2001-07-30 23:12                                   ` Hans Reiser
2001-07-31 10:32                                 ` Chris Wedgwood
2001-07-31 10:59                                   ` Hans Reiser
2001-07-31 11:42                                     ` Chris Wedgwood
2001-07-31 13:41                                     ` Chris Mason
2001-07-31 15:15                                       ` Chris Wedgwood
2001-07-31 15:58                                         ` Chris Mason
2001-07-31 15:22                                       ` Hans Reiser
2001-07-31 15:49                                         ` Chris Mason
2001-07-31 22:08                               ` Jussi Laako
2001-07-31 22:32                                 ` Dan Hollis
2001-07-31 23:45                                   ` Chris Wedgwood
2001-08-01 16:23                                 ` Andreas Dilger
2001-08-02 13:44                         ` Pavel Machek
2001-07-27 15:06             ` Daniel Phillips
2001-07-27 15:33               ` Hans Reiser
2001-07-27 16:30                 ` Daniel Phillips
2001-07-27 15:07             ` Chris Wedgwood
2001-07-27 16:39             ` Andrew Morton
2001-07-27 16:57               ` Hans Reiser
2001-07-27 17:28                 ` Andrew Morton
2001-07-27 17:45                   ` Hans Reiser
2001-07-27 17:10               ` Steve Lord
2001-07-27 14:48           ` Hans Reiser
2001-07-27 15:04             ` bvermeul
2001-07-27 15:38               ` Hans Reiser
2001-07-27 17:29                 ` Eric W. Biederman
2001-07-27 18:47                   ` bvermeul
2001-07-27 19:22                     ` Hans Reiser
2001-07-28  6:19                       ` bvermeul
2001-07-28  7:39                         ` Hans Reiser
2001-07-27 19:30                     ` Jussi Laako
2001-07-28  6:21                       ` bvermeul
2001-07-27 21:49                     ` Daniel Phillips
2001-07-27 20:49                 ` Lehmann 
2001-07-28 14:13           ` Matthew Gardiner
2001-07-28 14:40             ` bvermeul
2001-07-18  9:42 ` Hans Reiser
     [not found]   ` <3B5579E7.5090107@namesys.com>
2001-07-18 16:26     ` Sam Thompson
2001-07-18 16:34       ` Hans Reiser
2001-07-18 13:09 ` Andre Pang

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