From: Pavel Machek <pavel@ucw.cz>
To: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Bill Davidsen <davidsen@tmr.com>,
Benny Amorsen <benny+usenet@amorsen.dk>,
linux-kernel@vger.kernel.org
Subject: Re: ext4 features
Date: Sat, 8 Jul 2006 12:55:32 +0200 [thread overview]
Message-ID: <20060708105532.GH1700@elf.ucw.cz> (raw)
In-Reply-To: <m3odw0e5cu.fsf@defiant.localdomain>
On Sat 2006-07-08 12:52:17, Krzysztof Halasa wrote:
> Pavel Machek <pavel@ucw.cz> writes:
>
> >> > It *was* done. mc supports undelete on ext2.
> >>
> >> How does it do that? Directly accessing the device?
> >
> > Yes. I used it once or twice, and was not happy when ext3 broke it.
>
> I'd say it had to be broken from the beginning. Doing such things
> on live, mounted filesystem...
Why not? You use libextfs or how is it called to read the file from
the disk directly (read-only access), then you write it back using
regular calls.
Of course, you can end up with "deleted" data being corrupted if
kernel reused the area before undelete, or while you were doing
undelete... but that's expected. They were _deleted_, right?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2006-07-08 10:55 UTC|newest]
Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-01 16:33 ext4 features Thomas Glanzmann
2006-07-01 17:07 ` Tomasz Torcz
2006-07-01 17:47 ` Thomas Glanzmann
2006-07-01 18:09 ` Claudio Martins
2006-07-01 18:59 ` Thomas Glanzmann
2006-07-01 18:17 ` Tomasz Torcz
2006-07-03 9:44 ` Gabor Gombas
2006-07-03 20:22 ` Helge Hafting
2006-07-03 20:55 ` Tomasz Torcz
2006-07-03 21:01 ` Arjan van de Ven
2006-07-03 21:46 ` Jeff V. Merkey
2006-07-03 21:25 ` Diego Calleja
2006-07-03 22:17 ` Alan Cox
2006-07-04 14:45 ` Jan Engelhardt
2006-07-04 16:35 ` Jeffrey V. Merkey
2006-07-04 18:52 ` Jeff Garzik
2006-07-04 19:40 ` Jeffrey V. Merkey
2006-07-05 13:35 ` Lew Palm
2006-07-03 23:01 ` Jeff V. Merkey
2006-07-04 9:14 ` Benny Amorsen
2006-07-05 4:21 ` Bill Davidsen
2006-07-05 5:13 ` H. Peter Anvin
2006-07-05 5:45 ` Jeffrey V. Merkey
2006-07-07 14:12 ` Pavel Machek
2006-07-05 10:38 ` Krzysztof Halasa
2006-07-07 14:10 ` Pavel Machek
2006-07-07 17:45 ` Krzysztof Halasa
2006-07-07 21:30 ` Pavel Machek
2006-07-08 10:52 ` Krzysztof Halasa
2006-07-08 10:55 ` Pavel Machek [this message]
2006-07-08 11:19 ` Krzysztof Halasa
2006-07-08 11:23 ` Pavel Machek
2006-07-08 18:45 ` Avi Kivity
2006-07-08 20:24 ` Krzysztof Halasa
2006-07-04 9:22 ` Petr Tesarik
2006-07-04 11:35 ` Peter Zijlstra
2006-07-04 11:55 ` ext4 features (salvage) Petr Tesarik
[not found] ` <80294dc60607040508l1022d164ybe0ba10858e54f0c@mail.gmail.com>
2006-07-04 12:31 ` Petr Tesarik
2006-07-04 12:42 ` Helge Hafting
2006-07-04 16:20 ` Matthew Frost
2006-07-04 15:25 ` ext4 features Pavel Machek
2006-07-05 4:10 ` Bill Davidsen
2006-07-03 21:46 ` Valdis.Kletnieks
[not found] ` <Pine.LNX.4.61.0607032354170.31747@yvahk01.tjqt.qr>
2006-07-04 14:37 ` Kernel recycler [was: ext4 features] Jan Engelhardt
2006-07-04 11:14 ` ext4 features Krzysztof Halasa
2006-07-04 22:35 ` Frank van Maarseveen
2006-07-04 23:47 ` Claudio Martins
2006-07-03 22:12 ` Alan Cox
2006-07-03 21:59 ` Arjan van de Ven
2006-07-03 23:31 ` ext4 features (checksums) Neil Brown
2006-07-04 1:03 ` Jeff Garzik
2006-07-04 6:09 ` Avi Kivity
2006-07-04 7:02 ` Neil Brown
2006-07-04 8:26 ` Avi Kivity
2006-07-05 11:56 ` Bill Davidsen
2006-07-05 12:06 ` Bill Davidsen
2006-07-05 12:19 ` Avi Kivity
2006-07-08 17:54 ` Bill Davidsen
2006-07-04 8:17 ` Alan Cox
2006-07-04 11:08 ` Thomas Glanzmann
2006-07-04 11:19 ` Krzysztof Halasa
2006-07-04 12:49 ` Helge Hafting
2006-07-05 12:01 ` Bill Davidsen
2006-07-05 12:10 ` Avi Kivity
2006-07-08 18:02 ` Bill Davidsen
2006-07-06 0:36 ` Blatant layering violations (was Re: ext4 features) Valerie Henson
2006-07-06 12:15 ` Xavier Bestel
2006-07-06 17:06 ` Valdis.Kletnieks
2006-07-06 20:02 ` Tom Vier
2006-07-03 21:34 ` ext4 features Bill Davidsen
2006-07-03 21:50 ` Valdis.Kletnieks
2006-07-03 22:04 ` Bruce Ferrell
2006-07-04 14:48 ` Valdis.Kletnieks
2006-07-03 23:00 ` Bill Davidsen
2006-07-04 15:01 ` Valdis.Kletnieks
2006-07-05 2:40 ` Bill Davidsen
2006-07-05 2:47 ` Valdis.Kletnieks
2006-07-04 12:52 ` Helge Hafting
2006-07-06 15:12 ` Ric Wheeler
2006-07-06 17:05 ` Krzysztof Halasa
2006-07-06 17:27 ` Ric Wheeler
2006-07-06 20:52 ` Valdis.Kletnieks
2006-07-07 17:41 ` Krzysztof Halasa
2006-07-07 17:34 ` Krzysztof Halasa
2006-07-04 1:02 ` Theodore Tso
2006-07-04 19:16 ` Thomas Glanzmann
2006-07-04 19:30 ` Valdis.Kletnieks
2006-07-05 12:24 ` Bill Davidsen
2006-07-05 12:59 ` J. Bruce Fields
2006-07-05 13:17 ` Pádraig Brady
2006-07-05 19:33 ` Trond Myklebust
2006-07-05 21:22 ` Bill Davidsen
2006-07-05 21:42 ` Trond Myklebust
2006-07-08 21:04 ` Bill Davidsen
2006-07-10 20:08 ` Trond Myklebust
2006-07-10 22:37 ` Bill Davidsen
2006-07-11 2:36 ` Trond Myklebust
2006-07-21 3:10 ` Bill Davidsen
2006-07-21 12:06 ` Trond Myklebust
2006-07-21 14:36 ` Theodore Tso
2006-07-21 19:02 ` Trond Myklebust
2006-07-22 12:25 ` Theodore Tso
2006-07-05 21:12 ` Bill Davidsen
2006-07-05 21:27 ` linux-os (Dick Johnson)
2006-07-05 21:41 ` J. Bruce Fields
2006-07-06 2:32 ` Bill Davidsen
2006-07-06 2:42 ` Nigel Cunningham
2006-07-06 12:43 ` Trond Myklebust
2006-07-07 2:15 ` Bill Davidsen
2006-07-07 2:30 ` Trond Myklebust
2006-07-07 2:42 ` Ric Wheeler
2006-07-07 2:46 ` Trond Myklebust
2006-07-07 3:16 ` Bill Davidsen
2006-07-07 8:09 ` Bernd Petrovitsch
2006-07-07 14:56 ` Trond Myklebust
2006-07-07 19:52 ` Theodore Tso
2006-07-05 14:04 ` Avi Kivity
2006-07-04 14:36 ` Andi Kleen
2006-07-04 14:43 ` Thomas Glanzmann
[not found] <6tVcC-1e1-79@gated-at.bofh.it>
[not found] ` <6tVcC-1e1-81@gated-at.bofh.it>
[not found] ` <6tVcC-1e1-83@gated-at.bofh.it>
[not found] ` <6tWib-2Ly-7@gated-at.bofh.it>
[not found] ` <6uDdv-7bs-3@gated-at.bofh.it>
[not found] ` <6uDGF-7Nj-47@gated-at.bofh.it>
[not found] ` <6uDQb-8e8-9@gated-at.bofh.it>
[not found] ` <6uDQb-8e8-13@gated-at.bofh.it>
[not found] ` <6uE9y-d1-1@gated-at.bofh.it>
[not found] ` <6uPom-87W-23@gated-at.bofh.it>
2006-07-04 12:28 ` Bodo Eggert
2006-07-04 15:32 ` Valdis.Kletnieks
[not found] ` <6uEMp-1gr-41@gated-at.bofh.it>
[not found] ` <6uUo2-6SN-5@gated-at.bofh.it>
[not found] ` <6uW6v-15i-19@gated-at.bofh.it>
[not found] ` <6vfLY-4K5-33@gated-at.bofh.it>
2006-07-05 22:40 ` Bodo Eggert
[not found] ` <6uXYv-3RG-1@gated-at.bofh.it>
[not found] ` <6veG8-350-7@gated-at.bofh.it>
[not found] ` <6vfiU-465-13@gated-at.bofh.it>
[not found] ` <6vmNk-77r-23@gated-at.bofh.it>
[not found] ` <6vnq7-7Tw-55@gated-at.bofh.it>
[not found] ` <6vrN0-5Se-9@gated-at.bofh.it>
[not found] ` <6vBsY-38p-9@gated-at.bofh.it>
2006-07-07 9:38 ` Bodo Eggert
2006-07-07 14:37 ` Trond Myklebust
2006-07-09 9:50 ` Bodo Eggert
-- strict thread matches above, loose matches on Subject: below --
2006-07-08 2:22 Chuck Ebbert
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