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From: jim owens <jowens@hp.com>
To: Rob Landley <rob@landley.net>
Cc: Ric Wheeler <rwheeler@redhat.com>, Pavel Machek <pavel@ucw.cz>,
	david@lang.hm, Theodore Tso <tytso@mit.edu>,
	Florian Weimer <fweimer@bfk.de>,
	Goswin von Brederlow <goswin-v-b@web.de>,
	kernel list <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@osdl.org>,
	mtk.manpages@gmail.com, rdunlap@xenotime.net,
	linux-doc@vger.kernel.org, linux-ext4@vger.kernel.org,
	corbet@lwn.net
Subject: Re: [testcase] test your fs/storage stack (was Re: [patch] ext2/3: document conditions when reliable operation is possible)
Date: Thu, 03 Sep 2009 10:14:43 -0400	[thread overview]
Message-ID: <4A9FCF53.10105@hp.com> (raw)
In-Reply-To: <200909022141.48827.rob@landley.net>

Rob Landley wrote:
> I think he understands he was clueless too, that's why he investigated the 
> failure and wrote it up for posterity.
> 
>> And Ric said do not stigmatize whole classes of A) devices, B) raid,
>> and C) filesystems with "Pavel says...".
> 
> I don't care what "Pavel says", so you can leave the ad hominem at the door, 
> thanks.

See, this is exactly the problem we have with all the proposed
documentation.  The reader (you) did not get what the writer (me)
was trying to say.  That does not say either of us was wrong in
what we thought was meant, simply that we did not communicate.

What I meant was we did not want to accept Pavel's incorrect
documentation and post it in kernel docs.

> The kernel presents abstractions, such as block device nodes.  Sometimes 
> implementation details bubble through those abstractions.  Presumably, we 
> agree on that so far.

We don't have any problem with documenting abstractions.  But they
must be written as abstracts and accurate, not as IMO blogs.

It is not "he means well, so we will just accept it".  The rule
for kernel docs should be the same as for code.  If it is not
correct in all cases or causes problems, we don't accept it.

jim

  reply	other threads:[~2009-09-03 14:14 UTC|newest]

Thread overview: 269+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-12  9:21 ext2/3: document conditions when reliable operation is possible Pavel Machek
2009-03-12 11:40 ` Jochen Voß
2009-03-21 11:24   ` Pavel Machek
2009-03-12 19:13 ` Rob Landley
2009-03-16 12:28   ` Pavel Machek
2009-03-16 19:26     ` Rob Landley
2009-03-23 10:45       ` Pavel Machek
2009-03-30 15:06         ` Goswin von Brederlow
     [not found]           ` <20090824093143.GD25591@elf.ucw.cz>
2009-08-24 11:19             ` [patch] " Florian Weimer
2009-08-24 13:01               ` Theodore Tso
2009-08-24 14:55                 ` Artem Bityutskiy
2009-08-24 22:30                   ` Rob Landley
2009-08-24 19:52                 ` Pavel Machek
2009-08-24 20:24                   ` Ric Wheeler
2009-08-24 20:52                     ` Pavel Machek
2009-08-24 21:08                       ` Ric Wheeler
2009-08-24 21:25                         ` Pavel Machek
2009-08-24 22:05                           ` Ric Wheeler
2009-08-24 22:22                             ` Zan Lynx
2009-08-24 22:44                               ` Pavel Machek
2009-08-25  0:34                                 ` Ric Wheeler
2009-08-24 23:42                               ` david
2009-08-24 22:41                             ` Pavel Machek
2009-08-24 22:39                           ` Theodore Tso
2009-08-24 23:00                             ` Pavel Machek
     [not found]                             ` <20090824230036.GK29763@elf.ucw.cz>
2009-08-25  0:02                               ` david
2009-08-25  9:32                                 ` Pavel Machek
2009-08-25  0:06                               ` Ric Wheeler
2009-08-25  9:34                                 ` Pavel Machek
2009-08-25 15:34                                   ` david
2009-08-26  3:32                                   ` Rik van Riel
2009-08-26 11:17                                     ` Pavel Machek
2009-08-26 11:29                                       ` david
2009-08-26 13:10                                         ` Pavel Machek
2009-08-26 13:43                                           ` david
2009-08-26 18:02                                             ` Theodore Tso
2009-08-27  6:28                                               ` Eric Sandeen
2009-11-09  8:53                                               ` periodic fsck was " Pavel Machek
     [not found]                                               ` <20091109085318.GE4818@elf.ucw.cz>
2009-11-09 14:05                                                 ` Theodore Tso
2009-11-09 15:58                                                   ` Andreas Dilger
2009-08-30  7:03                                             ` Pavel Machek
2009-08-26 12:28                                       ` Theodore Tso
2009-08-27  6:06                                         ` Rob Landley
2009-08-27  6:54                                           ` david
2009-08-27  7:34                                             ` Rob Landley
2009-08-28 14:37                                               ` david
2009-08-30  7:19                                             ` Pavel Machek
2009-08-30 12:48                                               ` david
2009-08-27  5:27                                     ` Rob Landley
2009-08-25  0:08                               ` Theodore Tso
2009-08-25  9:42                                 ` Pavel Machek
     [not found]                                 ` <20090825094244.GC15563@elf.ucw.cz>
2009-08-25 13:37                                   ` Ric Wheeler
2009-08-25 13:42                                     ` Alan Cox
2009-08-27  3:16                                       ` Rob Landley
2009-08-25 21:15                                     ` Pavel Machek
2009-08-25 22:42                                       ` Ric Wheeler
2009-08-25 22:51                                         ` Pavel Machek
2009-08-25 23:03                                           ` david
2009-08-25 23:29                                             ` Pavel Machek
2009-08-25 23:03                                           ` Ric Wheeler
2009-08-25 23:26                                             ` Pavel Machek
2009-08-25 23:40                                               ` Ric Wheeler
2009-08-25 23:48                                                 ` david
2009-08-25 23:53                                                 ` Pavel Machek
2009-08-26  0:11                                                   ` Ric Wheeler
2009-08-26  0:16                                                     ` Pavel Machek
2009-08-26  0:31                                                       ` Ric Wheeler
2009-08-26  1:00                                                         ` Theodore Tso
2009-08-26  1:15                                                           ` Ric Wheeler
2009-08-26  1:16                                                           ` Pavel Machek
2009-08-26  2:53                                                           ` Henrique de Moraes Holschuh
     [not found]                                                           ` <20090826011605.GS4300@elf.ucw.cz>
2009-08-26  2:55                                                             ` Theodore Tso
2009-08-26 13:37                                                               ` Ric Wheeler
     [not found]                                                           ` <4A948C94.7040103@redhat.com>
2009-08-26  2:58                                                             ` Theodore Tso
2009-08-26 10:39                                                               ` Ric Wheeler
     [not found]                                                               ` <4A9510D2.1090704@redhat.com>
2009-08-26 11:12                                                                 ` Pavel Machek
2009-08-26 11:28                                                                   ` david
2009-08-29  9:49                                                                     ` [testcase] test your fs/storage stack (was Re: [patch] ext2/3: document conditions when reliable operation is possible) Pavel Machek
2009-08-29 11:28                                                                       ` Ric Wheeler
2009-09-02 20:12                                                                         ` Pavel Machek
2009-09-02 20:42                                                                           ` Ric Wheeler
2009-09-02 23:00                                                                             ` Rob Landley
2009-09-02 23:09                                                                               ` david
2009-09-03  8:55                                                                                 ` Pavel Machek
2009-09-03  0:36                                                                               ` jim owens
2009-09-03  2:41                                                                                 ` Rob Landley
2009-09-03 14:14                                                                                   ` jim owens [this message]
2009-09-04  7:44                                                                                     ` Rob Landley
2009-09-04 11:49                                                                                       ` Ric Wheeler
2009-09-05 10:28                                                                                         ` Pavel Machek
2009-09-05 12:20                                                                                           ` Ric Wheeler
2009-09-05 13:54                                                                                           ` Jonathan Corbet
2009-09-05 21:27                                                                                             ` Pavel Machek
2009-09-05 21:56                                                                                               ` Theodore Tso
2009-09-02 22:45                                                                           ` Rob Landley
2009-09-02 22:49                                                                           ` [PATCH] Update Documentation/md.txt to mention journaling won't help dirty+degraded case Rob Landley
2009-09-03  9:08                                                                             ` Pavel Machek
2009-09-03 12:05                                                                             ` Ric Wheeler
2009-09-03 12:31                                                                               ` Pavel Machek
2009-08-29 16:35                                                                       ` [testcase] test your fs/storage stack (was Re: [patch] ext2/3: document conditions when reliable operation is possible) david
2009-08-30  7:07                                                                         ` Pavel Machek
2009-08-26 12:01                                                                   ` [patch] ext2/3: document conditions when reliable operation is possible Ric Wheeler
2009-08-26 12:23                                                                   ` Theodore Tso
2009-08-30  7:01                                                                     ` Pavel Machek
2009-08-27  5:19                                                               ` Rob Landley
2009-08-27 12:24                                                                 ` Theodore Tso
2009-08-27 13:10                                                                   ` Ric Wheeler
     [not found]                                                                   ` <4A9685D4.2070906@redhat.com>
2009-08-27 16:54                                                                     ` MD/DM and barriers (was Re: [patch] ext2/3: document conditions when reliable operation is possible) Jeff Garzik
2009-08-27 18:09                                                                       ` Alasdair G Kergon
2009-09-01 14:01                                                                       ` Pavel Machek
2009-09-02 16:17                                                                         ` Michael Tokarev
2009-08-29 10:02                                                                   ` [patch] ext2/3: document conditions when reliable operation is possible Pavel Machek
2009-09-03  9:47                                                           ` Pavel Machek
2009-08-26  3:50                                                   ` Rik van Riel
2009-08-27  3:53                                                 ` Rob Landley
2009-08-27 11:43                                                   ` Ric Wheeler
2009-08-27 20:51                                                     ` Rob Landley
2009-08-27 22:00                                                       ` Ric Wheeler
2009-08-28 14:49                                                       ` david
2009-08-29 10:05                                                         ` Pavel Machek
2009-08-29 20:22                                                           ` Rob Landley
2009-08-29 21:34                                                             ` Pavel Machek
2009-09-03 16:56                                                             ` what fsck can (and can't) do was " david
2009-09-03 19:27                                                               ` Theodore Tso
2009-08-27 22:13                                                     ` raid is dangerous but that's secret (was Re: [patch] ext2/3: document conditions when reliable operation is possible) Pavel Machek
2009-08-28  1:32                                                       ` Ric Wheeler
2009-08-28  6:44                                                         ` Pavel Machek
2009-08-28  7:31                                                           ` NeilBrown
2009-11-09 10:50                                                             ` Pavel Machek
2009-08-28 11:16                                                           ` Ric Wheeler
2009-09-01 13:58                                                             ` Pavel Machek
2009-08-28  7:11                                                         ` raid is dangerous but that's secret Florian Weimer
2009-08-28  7:23                                                           ` NeilBrown
2009-08-28 12:08                                                         ` raid is dangerous but that's secret (was Re: [patch] ext2/3: document conditions when reliable operation is possible) Theodore Tso
2009-08-30  7:51                                                           ` Pavel Machek
     [not found]                                                           ` <20090830075135.GA1874@ucw.cz>
2009-08-30  9:01                                                             ` Christian Kujau
2009-09-02 20:55                                                               ` Pavel Machek
2009-08-30 12:55                                                             ` david
2009-08-30 14:12                                                               ` Ric Wheeler
2009-08-30 14:44                                                                 ` Michael Tokarev
2009-08-30 16:10                                                                   ` Ric Wheeler
2009-08-30 16:35                                                                   ` Christoph Hellwig
2009-08-31 13:15                                                                     ` Ric Wheeler
2009-08-31 13:16                                                                       ` Christoph Hellwig
2009-08-31 13:19                                                                         ` Mark Lord
2009-08-31 13:21                                                                           ` Christoph Hellwig
2009-08-31 15:14                                                                             ` jim owens
2009-09-03  1:59                                                                             ` Ric Wheeler
2009-09-03 11:12                                                                               ` Krzysztof Halasa
2009-09-03 11:18                                                                                 ` Ric Wheeler
2009-09-03 13:34                                                                                   ` Krzysztof Halasa
2009-09-03 13:50                                                                                     ` Ric Wheeler
2009-09-03 13:59                                                                                       ` Krzysztof Halasa
2009-09-03 14:15                                                                                         ` wishful thinking about atomic, multi-sector or full MD stripe width, writes in storage Ric Wheeler
2009-09-03 14:26                                                                                           ` Florian Weimer
2009-09-03 15:09                                                                                             ` Ric Wheeler
2009-09-03 23:50                                                                                           ` Krzysztof Halasa
2009-09-04  0:39                                                                                             ` Ric Wheeler
2009-09-04 21:21                                                                                           ` Mark Lord
2009-09-04 21:29                                                                                             ` Ric Wheeler
2009-09-05 12:57                                                                                               ` Mark Lord
2009-09-05 13:40                                                                                                 ` Ric Wheeler
2009-09-05 21:43                                                                                                 ` NeilBrown
2009-09-07 11:45                                                                                           ` Pavel Machek
2009-09-07 13:10                                                                                             ` Theodore Tso
2010-04-04 13:47                                                                                               ` fsck more often when powerfail is detected (was Re: wishful thinking about atomic, multi-sector or full MD stripe width, writes in storage) Pavel Machek
2010-04-04 17:39                                                                                                 ` tytso
2010-04-04 17:59                                                                                                 ` Rob Landley
2010-04-04 18:45                                                                                                   ` Pavel Machek
2010-04-04 19:35                                                                                                     ` tytso
2010-04-04 19:29                                                                                                   ` tytso
2010-04-04 23:58                                                                                                     ` Rob Landley
2009-09-03 14:35                                                                                     ` raid is dangerous but that's secret (was Re: [patch] ext2/3: document conditions when reliable operation is possible) david
2009-08-31 13:22                                                                         ` Ric Wheeler
2009-08-31 15:50                                                                           ` david
2009-08-31 16:21                                                                             ` Ric Wheeler
2009-08-31 18:31                                                                             ` Christoph Hellwig
2009-08-31 19:11                                                                               ` david
2009-08-30 15:05                                                               ` Pavel Machek
2009-08-30 15:20                                                             ` Theodore Tso
2009-08-31 17:49                                                               ` Jesse Brandeburg
     [not found]                                                               ` <4807377b0908311049id9a2167r937bc8447c2b3546@mail.gmail.com>
2009-08-31 18:01                                                                 ` Ric Wheeler
2009-08-31 21:01                                                                   ` MD5/6? (was Re: raid is dangerous but that's secret ...) Ron Johnson
2009-08-31 18:07                                                                 ` raid is dangerous but that's secret (was Re: [patch] ext2/3: document conditions when reliable operation is possible) martin f krafft
2009-08-31 22:26                                                                   ` Jesse Brandeburg
2009-08-31 23:19                                                                     ` Ron Johnson
2009-09-01  5:45                                                                     ` martin f krafft
2009-09-05 10:34                                                               ` Pavel Machek
2009-08-25 23:46                                               ` [patch] ext2/3: document conditions when reliable operation is possible david
2009-08-25 23:08                                       ` Neil Brown
2009-08-25 23:44                                         ` Pavel Machek
2009-08-26  4:08                                           ` Rik van Riel
2009-08-26 11:15                                             ` Pavel Machek
2009-08-27  3:29                                               ` Rik van Riel
2009-08-25 16:11                                   ` Theodore Tso
2009-08-25 22:21                                     ` [patch] document flash/RAID dangers Pavel Machek
2009-08-25 22:33                                       ` david
2009-08-25 22:40                                         ` Pavel Machek
2009-08-25 22:59                                           ` david
2009-08-25 23:37                                             ` Pavel Machek
2009-08-25 23:48                                               ` Ric Wheeler
2009-08-26  0:06                                                 ` Pavel Machek
2009-08-26  0:12                                                   ` Ric Wheeler
2009-08-26  0:20                                                     ` Pavel Machek
2009-08-26  0:26                                                       ` david
2009-08-26  0:28                                                       ` Ric Wheeler
2009-08-26  0:38                                                         ` Pavel Machek
2009-08-26  0:45                                                           ` Ric Wheeler
2009-08-26 11:21                                                             ` Pavel Machek
2009-08-26 11:58                                                               ` Ric Wheeler
2009-08-26 12:40                                                                 ` Theodore Tso
2009-08-26 13:11                                                                   ` Ric Wheeler
     [not found]                                                                   ` <4A95349E.7010101@redhat.com>
2009-08-26 13:44                                                                     ` david
2009-08-29  9:38                                                                 ` Pavel Machek
2009-08-26  4:24                                                       ` Rik van Riel
2009-08-26 11:22                                                         ` Pavel Machek
2009-08-26 14:45                                                           ` Rik van Riel
2009-08-29  9:39                                                             ` Pavel Machek
2009-08-29 11:47                                                               ` Ron Johnson
2009-08-29 16:12                                                                 ` jim owens
2009-08-25 23:56                                               ` david
2009-08-26  0:12                                                 ` Pavel Machek
2009-08-26  0:20                                                   ` david
2009-08-26  0:39                                                     ` Pavel Machek
2009-08-26  1:17                                                       ` david
2009-08-26  0:26                                                   ` Ric Wheeler
2009-08-26  0:44                                                     ` Pavel Machek
2009-08-26  0:50                                                       ` Ric Wheeler
2009-08-26  1:19                                                       ` david
2009-08-26 11:25                                                         ` Pavel Machek
2009-08-26 12:37                                                           ` Theodore Tso
2009-08-30  6:49                                                             ` Pavel Machek
2009-08-26  4:20                                           ` Rik van Riel
2009-08-25 22:27                                     ` [patch] document that ext2 can't handle barriers Pavel Machek
2009-08-27  3:34                                 ` [patch] ext2/3: document conditions when reliable operation is possible Rob Landley
2009-08-27  8:46                                 ` David Woodhouse
2009-08-28 14:46                                   ` david
2009-08-29 10:09                                     ` Pavel Machek
2009-08-29 16:27                                       ` david
2009-08-29 21:33                                         ` Pavel Machek
2009-08-25 22:58                             ` Neil Brown
2009-08-25 23:10                               ` Ric Wheeler
2009-08-25 23:32                                 ` NeilBrown
2009-08-24 21:11                       ` Greg Freemyer
2009-08-25 20:56                         ` Rob Landley
2009-08-25 21:08                           ` david
2009-08-25 18:52                     ` Rob Landley
2009-08-25 14:43                 ` Florian Weimer
2009-08-24 13:50               ` Theodore Tso
2009-08-24 18:48                 ` Pavel Machek
2009-08-24 18:39               ` Pavel Machek
2009-08-24 13:21             ` Greg Freemyer
2009-08-24 18:44               ` Pavel Machek
2009-08-25 23:28               ` Neil Brown
2009-08-26  1:34                 ` david
2009-08-24 21:11             ` Rob Landley
2009-08-24 21:33               ` Pavel Machek
2009-08-25 18:45                 ` Jan Kara
2009-03-16 12:30   ` Pavel Machek
2009-03-16 19:03     ` Theodore Tso
2009-03-23 18:23       ` Pavel Machek
2009-03-16 19:40     ` Sitsofe Wheeler
2009-03-16 21:43       ` Rob Landley
2009-03-17  4:55         ` Kyle Moffett
2009-03-23 11:00       ` Pavel Machek
2009-08-29  1:33   ` Robert Hancock
2009-08-29 13:04     ` Alan Cox
2009-03-16 19:45 ` Greg Freemyer
2009-03-16 21:48   ` Pavel Machek

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