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From: Linus Torvalds <torvalds@osdl.org>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Andrew Morton <akpm@osdl.org>,
	andrei.popa@i-neo.ro,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Hugh Dickins <hugh@veritas.com>,
	Florian Weimer <fw@deneb.enyo.de>,
	Marc Haber <mh+linux-kernel@zugschlus.de>,
	Martin Michlmayr <tbm@cyrius.com>
Subject: Re: 2.6.19 file content corruption on ext3
Date: Tue, 19 Dec 2006 08:51:16 -0800 (PST)	[thread overview]
Message-ID: <Pine.LNX.4.64.0612190847270.3479@woody.osdl.org> (raw)
In-Reply-To: <4587B762.2030603@yahoo.com.au>



On Tue, 19 Dec 2006, Nick Piggin wrote:
> 
> Counterexample? Well AFAIKS, the clearing of PG_dirty in ttfb() in
> response to finding all buffers clean is perfectly valid. What makes
> you think otherwise?

If the page really is clean, then why the heck cant' we just clean the 
page table bits too?

Either it's clean or it isn't. If all the buffers being clean means that 
the page is clean, then it's clean. WE SHOULD NOT THINK THAT PTE'S ARE ANY 
DIFFERENT.

I really don't see your point. Is it clean? If it is, then clear the damn 
dirty bits from the page tables too. Don't go pussyfooting around the 
issue and confuse yourself and everybody but me by saying "but if it's 
dirty in the page tables, it's magically dirty". NO.

It really is that simple. Is it clean or not?

If it's clean, you can remove ALL the dirty bits. Not just some.

			Linus

  parent reply	other threads:[~2006-12-19 16:51 UTC|newest]

Thread overview: 333+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-17  0:13 2.6.19 file content corruption on ext3 Andrei Popa
2006-12-17 12:06 ` Andrew Morton
2006-12-17 12:19   ` Marc Haber
2006-12-17 12:32   ` Andrei Popa
2006-12-17 13:39   ` Andrei Popa
2006-12-17 23:40     ` Andrew Morton
2006-12-18  1:02       ` Linus Torvalds
2006-12-18  1:22       ` Linus Torvalds
2006-12-18  1:29         ` Linus Torvalds
2006-12-18  1:57           ` Linus Torvalds
2006-12-18  4:51             ` Nick Piggin
2006-12-18  5:43               ` Andrew Morton
2006-12-18  7:22                 ` Nick Piggin
2006-12-18  9:18                   ` Andrew Morton
2006-12-18  9:26                     ` Andrei Popa
2006-12-18  9:42                     ` Nick Piggin
2006-12-19  8:51                 ` Marc Haber
2006-12-19  9:28                   ` Martin Michlmayr
2006-12-28 18:05                   ` Marc Haber
2006-12-28 19:00                     ` Linus Torvalds
2006-12-28 19:05                       ` Petri Kaukasoina
2006-12-28 19:21                         ` Linus Torvalds
2006-12-28 19:39                           ` Dave Jones
2006-12-28 20:10                             ` Arjan van de Ven
2006-12-29  9:23                             ` maximilian attems
2006-12-29 15:02                               ` Dave Jones
2006-12-29 18:52                                 ` maximilian attems
2006-12-29 19:14                                   ` Dave Jones
2006-12-28 21:24                       ` Linus Torvalds
2006-12-28 21:36                         ` Russell King
2006-12-28 22:37                         ` Linus Torvalds
2006-12-28 22:50                           ` David Miller
2006-12-28 23:01                             ` Linus Torvalds
2006-12-29  1:38                             ` Linus Torvalds
2006-12-29  1:59                               ` Andrew Morton
2006-12-28 23:36                           ` Anton Altaparmakov
2006-12-28 23:54                             ` Linus Torvalds
2006-12-29 17:49                       ` Guillaume Chazarain
2006-12-18  5:50               ` Linus Torvalds
2006-12-18  7:16                 ` Andrew Morton
2006-12-18  7:17                   ` Andrew Morton
2006-12-18  9:30                   ` Nick Piggin
2006-12-18  7:30                 ` Nick Piggin
2006-12-18  9:19                 ` Andrei Popa
2006-12-18  9:38                   ` Andrew Morton
2006-12-18 10:00                     ` Andrei Popa
2006-12-18 10:11                       ` Peter Zijlstra
2006-12-18 10:49                         ` Andrei Popa
2006-12-18 15:24                           ` Gene Heskett
2006-12-18 15:32                             ` Peter Zijlstra
2006-12-18 15:47                               ` Gene Heskett
2006-12-18 16:55       ` Peter Zijlstra
2006-12-18 18:03         ` Linus Torvalds
2006-12-18 18:24           ` Peter Zijlstra
2006-12-18 18:35             ` Linus Torvalds
2006-12-18 19:04               ` Andrei Popa
2006-12-18 19:10                 ` Peter Zijlstra
2006-12-18 19:18                 ` Linus Torvalds
2006-12-18 19:44                   ` Andrei Popa
2006-12-18 20:14                     ` Linus Torvalds
2006-12-18 20:41                       ` Linus Torvalds
2006-12-18 21:11                         ` Andrei Popa
2006-12-18 22:00                           ` Alessandro Suardi
2006-12-18 22:45                             ` Linus Torvalds
2006-12-19  0:13                               ` Andrei Popa
2006-12-19  0:29                                 ` Linus Torvalds
2006-12-18 22:32                           ` Linus Torvalds
2006-12-18 23:48                             ` Andrei Popa
2006-12-19  0:04                               ` Linus Torvalds
2006-12-19  0:29                                 ` Andrei Popa
2006-12-19  0:57                                   ` Linus Torvalds
2006-12-19  1:21                                     ` Andrew Morton
2006-12-19  1:44                                       ` Andrei Popa
2006-12-19  1:54                                         ` Andrew Morton
2006-12-19  2:04                                           ` Andrei Popa
2006-12-19  8:05                                           ` Andrei Popa
2006-12-19  8:24                                             ` Andrew Morton
2006-12-19  8:34                                               ` Pekka Enberg
2006-12-19  9:13                                               ` Marc Haber
2006-12-19  1:50                                     ` Andrei Popa
2006-12-19  1:03                               ` Gene Heskett
2006-12-18 22:34                         ` Gene Heskett
2006-12-22 17:27                           ` Linus Torvalds
2006-12-18 21:43                       ` Andrew Morton
2006-12-18 21:49                       ` Peter Zijlstra
2006-12-19 23:42                       ` Peter Zijlstra
2006-12-20  0:23                         ` Linus Torvalds
2006-12-20  9:01                           ` Peter Zijlstra
2006-12-20  9:12                             ` Peter Zijlstra
2006-12-20  9:39                             ` Arjan van de Ven
2006-12-20 11:26                               ` [PATCH] mm: fix page_mkclean_one (was: 2.6.19 file content corruption on ext3) Peter Zijlstra
2006-12-20 11:39                                 ` Jesper Juhl
2006-12-20 11:42                                   ` Peter Zijlstra
2006-12-20 12:12                                     ` Jesper Juhl
2006-12-20 13:00                                 ` Hugh Dickins
2006-12-20 13:56                                   ` Peter Zijlstra
2006-12-20 17:03                                     ` Martin Michlmayr
2006-12-20 17:35                                       ` Linus Torvalds
2006-12-20 17:53                                         ` Martin Michlmayr
2006-12-20 19:01                                           ` Linus Torvalds
2006-12-20 19:50                                             ` Linus Torvalds
2006-12-20 20:22                                               ` Peter Zijlstra
2006-12-20 21:55                                               ` Dave Kleikamp
2006-12-20 22:25                                                 ` Linus Torvalds
2006-12-20 22:59                                                   ` Dave Kleikamp
2006-12-20 22:15                                               ` Peter Zijlstra
2006-12-20 22:20                                                 ` Peter Zijlstra
2006-12-20 22:49                                                 ` Linus Torvalds
2006-12-20 23:03                                                   ` Peter Zijlstra
2006-12-21  9:16                                                     ` Martin Schwidefsky
2006-12-21  9:20                                                       ` Peter Zijlstra
2006-12-21  9:26                                                         ` Martin Schwidefsky
2006-12-21 20:01                                                         ` Linus Torvalds
2006-12-28  0:00                                                           ` Martin Schwidefsky
2006-12-28  0:42                                                             ` Linus Torvalds
2006-12-28  0:52                                                               ` [PATCH] mm: fix page_mkclean_one David Miller
2006-12-21  2:36                                                 ` [PATCH] mm: fix page_mkclean_one (was: 2.6.19 file content corruption on ext3) Trond Myklebust
2006-12-21  8:10                                                   ` Peter Zijlstra
2006-12-20 23:24                                               ` David Chinner
2006-12-20 23:55                                                 ` Linus Torvalds
2006-12-21  1:20                                                   ` David Chinner
2006-12-20 23:32                                               ` Andrew Morton
2006-12-20 23:55                                                 ` Linus Torvalds
2006-12-21  0:11                                                   ` Andrew Morton
2006-12-21  0:22                                                     ` Linus Torvalds
2006-12-21  0:24                                                       ` Linus Torvalds
2006-12-21 15:48                                                         ` Andrei Popa
2006-12-21 16:58                                                           ` Linus Torvalds
2006-12-21  0:43                                                       ` Linus Torvalds
2006-12-21  1:20                                                         ` Andrew Morton
2006-12-21  2:54                                                   ` Trond Myklebust
2006-12-21 17:19                                                     ` Linus Torvalds
2006-12-21  7:32                                               ` Gordon Farquharson
2006-12-21  7:53                                                 ` Linus Torvalds
2006-12-21  8:38                                                   ` Martin Michlmayr
2006-12-21  8:59                                                     ` Linus Torvalds
2006-12-21  9:17                                                   ` Gordon Farquharson
2006-12-21  9:27                                                     ` Andrew Morton
2006-12-22  4:20                                                       ` Gordon Farquharson
2006-12-22  4:54                                                         ` Linus Torvalds
2006-12-22 10:00                                                           ` Martin Michlmayr
2006-12-22 10:06                                                             ` Martin Michlmayr
2006-12-22 10:10                                                               ` Martin Michlmayr
2006-12-22 11:07                                                                 ` Martin Michlmayr
2006-12-22 15:30                                                                 ` Gordon Farquharson
2006-12-22 17:11                                                                   ` Martin Michlmayr
2006-12-22 10:17                                                             ` Andrew Morton
2006-12-22 11:12                                                               ` Martin Michlmayr
2006-12-22 12:24                                                               ` Andrei Popa
2006-12-22 12:32                                                                 ` Martin Michlmayr
2006-12-22 12:59                                                                   ` Martin Michlmayr
2006-12-22 13:25                                                                     ` Peter Zijlstra
2006-12-22 13:29                                                                       ` Peter Zijlstra
2006-12-22 17:56                                                                       ` Linus Torvalds
2006-12-22 19:20                                                                       ` Martin Michlmayr
2006-12-24  8:10                                                                         ` Gordon Farquharson
2006-12-24  8:43                                                                           ` Linus Torvalds
2006-12-24  8:57                                                                             ` Andrew Morton
2006-12-24  9:26                                                                               ` Linus Torvalds
2006-12-24 12:14                                                                               ` Andrei Popa
2006-12-24 12:26                                                                                 ` Andrei Popa
2006-12-24 12:30                                                                                   ` Andrew Morton
2006-12-24 12:31                                                                                 ` Andrew Morton
2006-12-24 16:45                                                                                   ` Andrei Popa
2006-12-24 17:16                                                                                     ` Linus Torvalds
2006-12-24 18:07                                                                                       ` Andrew Morton
2006-12-24 18:37                                                                                       ` Linus Torvalds
2006-12-24 19:18                                                                                         ` Linus Torvalds
2006-12-24 20:55                                                                                           ` Gordon Farquharson
2006-12-26 10:31                                                                                           ` Nick Piggin
2006-12-26 19:26                                                                                             ` Linus Torvalds
2006-12-27 12:32                                                                                               ` Jari Sundell
2006-12-27 12:44                                                                                               ` valdyn
2006-12-27 13:33                                                                                                 ` Jari Sundell
2007-01-07  2:06                                                                                               ` Tom Lanyon
2007-01-07  5:58                                                                                                 ` Tom Lanyon
2007-01-07  6:05                                                                                                 ` Andrew Morton
2006-12-24 21:21                                                                                         ` Michael S. Tsirkin
2006-12-24 19:27                                                                                       ` Gordon Farquharson
2006-12-24 19:35                                                                                         ` Linus Torvalds
2006-12-24 20:10                                                                                           ` Andrei Popa
2006-12-24 20:24                                                                                             ` Linus Torvalds
2006-12-24 20:30                                                                                               ` Andrei Popa
2006-12-26 17:51                                                                                               ` Al Viro
2006-12-26 17:58                                                                                                 ` Al Viro
2006-12-24 22:01                                                                                           ` Martin Michlmayr
2006-12-24 14:05                                                                               ` Martin Michlmayr
2006-12-26 16:17                                                                             ` Tobias Diedrich
2006-12-27  4:55                                                                               ` [PATCH] mm: fix page_mkclean_one David Miller
2006-12-27  7:00                                                                                 ` Linus Torvalds
2006-12-27  8:39                                                                                   ` Andrei Popa
2006-12-28  0:16                                                                                 ` Linus Torvalds
2006-12-28  0:39                                                                                   ` Linus Torvalds
2006-12-28  0:52                                                                                     ` David Miller
2006-12-28  3:04                                                                                       ` Linus Torvalds
2006-12-28  4:32                                                                                         ` Gordon Farquharson
2006-12-28  4:53                                                                                           ` Linus Torvalds
2006-12-28  5:20                                                                                             ` Gordon Farquharson
2006-12-28  5:41                                                                                               ` David Miller
2006-12-28  5:47                                                                                                 ` Gordon Farquharson
2006-12-28 10:13                                                                                               ` Russell King
2006-12-28 14:15                                                                                                 ` Gordon Farquharson
2006-12-28 15:53                                                                                                   ` Martin Michlmayr
2006-12-28 17:27                                                                                                 ` Linus Torvalds
2006-12-28 18:44                                                                                                   ` Russell King
2006-12-28 19:01                                                                                                     ` Linus Torvalds
     [not found]                                                                                             ` <97a0a9ac0612272115g4cce1f08n3c3c8498a6076bd5@mail.gmail.com>
     [not found]                                                                                               ` <Pine.LNX.4.64.0612272120180.4473@woody.osdl.org>
2006-12-28  5:38                                                                                                 ` Gordon Farquharson
2006-12-28  9:30                                                                                                   ` Martin Michlmayr
2006-12-28 10:16                                                                                                   ` Martin Michlmayr
2006-12-28 10:49                                                                                                     ` Russell King
2006-12-28 14:56                                                                                                       ` Martin Michlmayr
2006-12-28  5:58                                                                                                 ` Gordon Farquharson
2006-12-28 17:08                                                                                                   ` Linus Torvalds
2006-12-28  5:55                                                                                         ` Chen, Kenneth W
2006-12-28  6:10                                                                                           ` Chen, Kenneth W
2006-12-28  6:27                                                                                             ` David Miller
2006-12-28 17:10                                                                                             ` Linus Torvalds
2006-12-28  9:15                                                                                         ` Zhang, Yanmin
2006-12-28 17:15                                                                                           ` Linus Torvalds
2006-12-28 11:50                                                                                         ` Petri Kaukasoina
2006-12-28 15:09                                                                                         ` Guillaume Chazarain
2006-12-28 19:19                                                                                           ` Guillaume Chazarain
2006-12-28 19:28                                                                                             ` Linus Torvalds
2006-12-28 19:45                                                                                               ` Andrew Morton
2006-12-28 20:14                                                                                                 ` Linus Torvalds
2006-12-28 22:38                                                                                                   ` David Miller
2006-12-29  2:50                                                                                                     ` Segher Boessenkool
2006-12-29  6:48                                                                                                       ` Linus Torvalds
2006-12-29  8:58                                                                                                         ` Ok, explained.. (was Re: [PATCH] mm: fix page_mkclean_one) Linus Torvalds
2006-12-29 10:48                                                                                                           ` Linus Torvalds
2006-12-29 11:16                                                                                                             ` Andrei Popa
2006-12-29 12:09                                                                                                             ` Nick Piggin
2006-12-29 17:25                                                                                                               ` Linus Torvalds
2006-12-29 12:31                                                                                                             ` Ingo Molnar
2006-12-29 13:08                                                                                                             ` Martin Johansson
2006-12-29 14:08                                                                                                             ` Martin Michlmayr
2006-12-29 15:17                                                                                                               ` Stephen Clark
2006-12-29 15:54                                                                                                                 ` Martin Michlmayr
2006-12-29 22:16                                                                                                             ` Andrew Morton
2006-12-29 22:24                                                                                                               ` Andrew Morton
2006-12-29 22:42                                                                                                               ` Linus Torvalds
2006-12-29 23:32                                                                                                                 ` Theodore Tso
2006-12-29 23:59                                                                                                                   ` Linus Torvalds
2006-12-30  0:05                                                                                                                   ` Andrew Morton
2006-12-30  0:50                                                                                                                     ` Linus Torvalds
2006-12-29 23:51                                                                                                                 ` Andrew Morton
2006-12-30  0:11                                                                                                                   ` Linus Torvalds
2006-12-30  0:33                                                                                                                     ` Andrew Morton
2006-12-30  0:58                                                                                                                       ` Linus Torvalds
2006-12-30  1:16                                                                                                                         ` Andrew Morton
2006-12-29 15:27                                                                                                           ` Theodore Tso
2006-12-29 17:51                                                                                                             ` Linus Torvalds
2006-12-29 12:19                                                                                                         ` [patch] fix data corruption bug in __block_write_full_page() Ingo Molnar
2007-01-02 11:20                                                                                                           ` Christoph Hellwig
2007-01-02 12:06                                                                                                             ` Ingo Molnar
2007-01-02 12:16                                                                                                               ` Christoph Hellwig
2006-12-28 22:35                                                                                                 ` [PATCH] mm: fix page_mkclean_one Mike Galbraith
2006-12-22 15:01                                                                   ` [PATCH] mm: fix page_mkclean_one (was: 2.6.19 file content corruption on ext3) Patrick Mau
2006-12-23  8:15                                                                   ` Andrei Popa
2006-12-22 15:08                                                           ` Gordon Farquharson
2006-12-22 10:01                                                         ` Martin Michlmayr
2006-12-22 15:16                                                           ` Gordon Farquharson
2006-12-21 12:30                                                   ` Russell King
2006-12-21 12:36                                                     ` Russell King
2006-12-21 11:21                                               ` Martin Michlmayr
2006-12-20 22:11                                       ` Russell King
2006-12-21  8:18                                         ` Martin Michlmayr
2006-12-21  9:54                                           ` Russell King
2006-12-20 14:55                                 ` Martin Schwidefsky
2006-12-20 14:27                             ` 2.6.19 file content corruption on ext3 Martin Schwidefsky
2006-12-20  9:32                           ` Peter Zijlstra
2006-12-20 14:15                         ` Andrei Popa
2006-12-20 14:23                           ` Peter Zijlstra
2006-12-20 16:30                             ` Andrei Popa
2006-12-20 16:36                               ` Peter Zijlstra
2006-12-19  7:38                   ` Peter Zijlstra
2006-12-19  4:36           ` Nick Piggin
2006-12-19  6:34             ` Linus Torvalds
2006-12-19  6:51               ` Nick Piggin
2006-12-19  7:26                 ` Linus Torvalds
2006-12-19  8:04                   ` Linus Torvalds
2006-12-19  9:00                     ` Peter Zijlstra
2006-12-19  9:05                       ` Peter Zijlstra
     [not found]                     ` <4587B762.2030603@yahoo.com.au>
2006-12-19 10:32                       ` Andrew Morton
2006-12-19 10:42                         ` Nick Piggin
2006-12-19 10:47                         ` Andrew Morton
2006-12-19 10:52                         ` Peter Zijlstra
2006-12-19 10:58                           ` Nick Piggin
2006-12-19 11:51                             ` Peter Zijlstra
2006-12-19 10:55                         ` Nick Piggin
2006-12-19 16:51                       ` Linus Torvalds [this message]
2006-12-19 17:43                         ` Linus Torvalds
2006-12-19 18:59                           ` Linus Torvalds
2006-12-19 21:30                             ` Peter Zijlstra
2006-12-19 22:51                               ` Linus Torvalds
2006-12-19 22:58                                 ` Andrew Morton
2006-12-19 23:06                                   ` Peter Zijlstra
2006-12-19 23:07                                     ` Peter Zijlstra
2006-12-20  0:03                                     ` Linus Torvalds
2006-12-20  0:18                                       ` Andrew Morton
2006-12-20 18:02                               ` Stephen Clark
2006-12-20  5:56                             ` Jari Sundell
2006-12-19 21:56                           ` Florian Weimer
2006-12-21 13:03                           ` Peter Zijlstra
2006-12-21 20:40                             ` Andrew Morton
2006-12-19 20:03               ` dean gaudet
2006-12-19  7:22             ` Peter Zijlstra
2006-12-19  7:59               ` Nick Piggin
2006-12-19  8:14                 ` Linus Torvalds
2006-12-19  9:40                   ` Nick Piggin
2006-12-19 16:46                     ` Linus Torvalds
  -- strict thread matches above, loose matches on Subject: below --
2006-12-07 15:57 Marc Haber
2006-12-07 16:50 ` Phillip Susi
2006-12-08  1:38   ` Fernando Luis Vázquez Cao
2006-12-08 16:42     ` Marc Haber
2006-12-09 10:47       ` Jan Kara
2006-12-11 19:07         ` Marc Haber
2006-12-14 12:03           ` Jan Kara
2006-12-15  9:30             ` Marc Haber
2006-12-16  8:29               ` Marc Haber
2006-12-09 23:46       ` Mike Galbraith
2006-12-11  9:31         ` Marc Haber
2006-12-09  9:26   ` Marc Haber
2006-12-16 18:43     ` Martin Michlmayr
2006-12-16 19:18       ` Hugh Dickins
2006-12-16 21:29         ` Peter Zijlstra
2006-12-16 23:08           ` Hugh Dickins
2006-12-17 13:52         ` Jan Kara
2006-12-22 17:05       ` Marc Haber
2006-12-16 18:31 ` Florian Weimer
2006-12-17 11:52   ` Andrew Morton
2006-12-22 13:30 ` Daniel Drake
2006-12-22 17:03   ` Marc Haber

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