From: <benh@kernel.crashing.org>
To: Linus Torvalds <torvalds@transmeta.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Padraig Brady <padraig@antefacto.com>,
Anton Altaparmakov <aia21@cantab.net>,
Martin Dalecki <dalecki@evision-ventures.com>,
Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] 2.5.14 IDE 56
Date: Tue, 7 May 2002 19:19:46 +0200 [thread overview]
Message-ID: <20020507171946.29430@mailhost.mipsys.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0205070953420.2509-100000@home.transmeta.com>
> /driverfs/root/pci0/00:1f.4/usb_bus/000/
>
>and it wouldn't be impossible (or even necessarily very hard) to make an
>IDE controller export the "IDE device tree" the same way a USB controller
>now exports the "USB device tree".
>
>For things like hotplug etc, I think driverfs is eventually the only way
>to go, simply because it gives you the full (and unambiguous) path to
>_any_ device, and is completely bus-agnostic.
>
>But there is definitely a potential backwards-compatibility-issue.
One interesting thing here would be to have some optional link between
the bus-oriented device tree and the function-oriented tree (ie. devfs
or simply /dev). For example, an IDE node in driverfs could eventually
hold symlinks to the entries it provides in /dev when using devfs (or
just provide major/minor when not using devfs).
What do you think ?
One problem I've been faced with on ppc is to be able to match
a linux device with what the firmware (Open Firmware) thinks that
device is. The firmware view is bus-centered and it would be pretty
easy to provide some additional entries in driverfs that give the
OF fullpath of a given device. But then, the link between the actual
driver in driverfs and the "device" as used by, for example, the
filesystem isn't trivial.
Ben.
next prev parent reply other threads:[~2002-05-07 17:19 UTC|newest]
Thread overview: 221+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-06 3:53 Linux-2.5.14 Linus Torvalds
2002-05-06 6:30 ` Linux-2.5.14 Daniel Pittman
2002-05-06 6:51 ` Linux-2.5.14 Andrew Morton
2002-05-06 15:13 ` Linux-2.5.14 Linus Torvalds
2002-05-07 4:28 ` Linux-2.5.14 Daniel Pittman
2002-05-09 3:53 ` Linux-2.5.14 Daniel Pittman
2002-05-09 4:34 ` Linux-2.5.14 Andrew Morton
2002-05-09 6:02 ` Linux-2.5.14 Daniel Pittman
2002-05-06 6:47 ` Linux-2.5.14 bert hubert
2002-05-06 7:07 ` Linux-2.5.14 Andrew Morton
2002-05-06 14:00 ` Linux-2.5.14 Rik van Riel
2002-05-06 9:09 ` [PATCH] 2.5.14 IDE 55 Martin Dalecki
2002-05-06 17:48 ` David Lang
2002-05-06 22:40 ` Roman Zippel
2002-05-07 10:10 ` Martin Dalecki
2002-05-07 11:31 ` Roman Zippel
2002-05-07 10:31 ` Martin Dalecki
2002-05-07 10:34 ` Martin Dalecki
2002-05-07 11:48 ` Roman Zippel
2002-05-07 11:19 ` Martin Dalecki
2002-05-07 12:35 ` Roman Zippel
2002-05-07 12:36 ` Andrey Panin
2002-05-07 11:32 ` Martin Dalecki
2002-05-07 12:38 ` Dave Jones
2002-05-07 0:03 ` Roman Zippel
2002-05-07 10:12 ` Martin Dalecki
2002-05-07 11:39 ` Roman Zippel
2002-05-07 10:40 ` Martin Dalecki
2002-05-07 12:42 ` Roman Zippel
2002-05-07 11:22 ` [PATCH] 2.5.14 IDE 56 Martin Dalecki
2002-05-07 14:02 ` Padraig Brady
2002-05-07 13:15 ` Martin Dalecki
2002-05-07 14:30 ` Padraig Brady
2002-05-07 15:08 ` Anton Altaparmakov
2002-05-07 15:36 ` Linus Torvalds
2002-05-07 16:20 ` Jan Harkes
2002-05-07 15:26 ` Martin Dalecki
2002-05-07 21:36 ` Jan Harkes
2002-05-08 0:25 ` Guest section DW
2002-05-08 3:03 ` Jan Harkes
2002-05-08 9:03 ` Martin Dalecki
2002-05-08 12:10 ` Alan Cox
2002-05-08 10:51 ` Martin Dalecki
2002-05-07 16:29 ` Padraig Brady
2002-05-07 16:51 ` Linus Torvalds
2002-05-07 18:29 ` Kai Henningsen
2002-05-08 7:48 ` Juan Quintela
2002-05-08 16:54 ` Linus Torvalds
2002-05-07 17:08 ` Alan Cox
2002-05-07 17:00 ` Linus Torvalds
2002-05-07 17:19 ` benh [this message]
2002-05-07 17:24 ` Linus Torvalds
2002-05-07 17:30 ` benh
2002-05-10 1:45 ` Mike Fedyk
2002-05-07 17:43 ` Richard Gooch
2002-05-07 18:05 ` Linus Torvalds
2002-05-07 18:26 ` Alan Cox
2002-05-07 18:16 ` Linus Torvalds
2002-05-07 18:40 ` Richard Gooch
2002-05-07 18:46 ` Linus Torvalds
2002-05-07 23:54 ` Roman Zippel
2002-05-08 6:57 ` Kai Henningsen
2002-05-08 9:37 ` Ian Molton
2002-05-09 13:58 ` Pavel Machek
2002-05-08 8:21 ` Martin Dalecki
2002-05-07 17:27 ` Jauder Ho
2002-05-08 8:13 ` Martin Dalecki
2002-05-07 18:29 ` Patrick Mochel
2002-05-07 18:02 ` Greg KH
2002-05-07 18:44 ` Richard Gooch
2002-05-07 18:44 ` Patrick Mochel
2002-05-07 19:21 ` Richard Gooch
2002-05-07 19:58 ` Patrick Mochel
2002-05-07 18:49 ` Thunder from the hill
2002-05-07 19:47 ` Patrick Mochel
2002-05-07 22:03 ` Richard Gooch
2002-05-08 8:14 ` Russell King
2002-05-08 16:07 ` Richard Gooch
2002-05-08 17:07 ` Russell King
2002-05-08 8:18 ` Martin Dalecki
2002-05-08 8:07 ` Martin Dalecki
2002-05-08 7:58 ` Martin Dalecki
2002-05-08 12:18 ` Alan Cox
2002-05-08 11:09 ` Martin Dalecki
2002-05-08 12:42 ` Alan Cox
2002-05-08 11:23 ` Martin Dalecki
2002-05-09 2:37 ` Lincoln Dale
2002-05-09 3:10 ` Andrew Morton
2002-05-09 10:05 ` Lincoln Dale
2002-05-09 18:50 ` Andrew Morton
2002-05-10 0:33 ` Andi Kleen
2002-05-10 0:48 ` Andrew Morton
2002-05-10 1:06 ` Andi Kleen
2002-05-13 17:51 ` Pavel Machek
2002-05-14 21:44 ` Andi Kleen
2002-05-10 6:50 ` O_DIRECT performance impact on 2.4.18 (was: Re: [PATCH] 2.5.14 IDE 56) Lincoln Dale
2002-05-10 7:15 ` O_DIRECT performance impact on 2.4.18 (was: Re: [PATCH] 2.5.14IDE 56) Andrew Morton
2002-05-10 7:21 ` Jens Axboe
2002-05-10 8:12 ` Andrea Arcangeli
2002-05-10 10:14 ` Lincoln Dale
2002-05-10 12:36 ` Andrea Arcangeli
2002-05-11 3:23 ` Lincoln Dale
2002-05-13 11:19 ` Andrea Arcangeli
2002-05-13 23:58 ` Lincoln Dale
2002-05-14 0:22 ` Andrea Arcangeli
2002-05-14 2:43 ` O_DIRECT on 2.4.19pre8aa2 md device Lincoln Dale
2002-05-21 15:51 ` Andrea Arcangeli
2002-05-22 1:18 ` Lincoln Dale
2002-05-22 2:51 ` Andrea Arcangeli
2002-06-03 4:53 ` high-end i/o performance of 2.4.19pre8aa2 (was: Re: O_DIRECT on 2.4.19pre8aa2 device) Lincoln Dale
2002-05-12 11:23 ` O_DIRECT performance impact on 2.4.18 (was: Re: [PATCH] 2.5.14IDE 56) Lincoln Dale
2002-05-13 11:37 ` Andrea Arcangeli
2002-05-10 15:55 ` O_DIRECT performance impact on 2.4.18 (was: Re: [PATCH] 2.5.14 IDE 56) Linus Torvalds
2002-05-11 1:01 ` Gerrit Huizenga
2002-05-11 18:04 ` Linus Torvalds
2002-05-11 18:19 ` Larry McVoy
2002-05-11 18:35 ` Linus Torvalds
2002-05-11 18:37 ` Larry McVoy
2002-05-11 18:56 ` Linus Torvalds
2002-05-11 21:42 ` Gerrit Huizenga
2002-05-11 18:43 ` Mr. James W. Laferriere
2002-05-11 23:38 ` Lincoln Dale
2002-05-12 0:36 ` yodaiken
2002-05-12 2:40 ` Andrew Morton
2002-05-11 18:26 ` O_DIRECT performance impact on 2.4.18 (was: Re: [PATCH] 2.5.14 Alan Cox
2002-05-11 18:09 ` Linus Torvalds
2002-05-11 18:45 ` O_DIRECT performance impact on 2.4.18 (was: Re: [PATCH] 2.5.14 IDE 56) yodaiken
2002-05-11 19:55 ` O_DIRECT performance impact on 2.4.18 Bernd Eckenfels
2002-05-11 14:18 ` O_DIRECT performance impact on 2.4.18 (was: Re: [PATCH] 2.5.14 IDE 56) Roy Sigurd Karlsbakk
2002-05-11 14:24 ` Jens Axboe
2002-05-11 18:25 ` Gerrit Huizenga
2002-05-11 20:17 ` Jens Axboe
2002-05-11 22:27 ` Gerrit Huizenga
2002-05-11 23:17 ` Lincoln Dale
2002-05-09 4:16 ` [PATCH] 2.5.14 IDE 56 Andre Hedrick
2002-05-09 13:32 ` Alan Cox
2002-05-09 14:58 ` Alan Cox
2002-05-08 18:21 ` Erik Andersen
2002-05-08 18:59 ` Dave Jones
2002-05-08 19:31 ` Alan Cox
2002-05-08 21:16 ` Erik Andersen
2002-05-08 22:14 ` Alan Cox
2002-05-09 13:13 ` Pavel Machek
2002-05-09 19:22 ` Daniel Jacobowitz
2002-05-10 12:01 ` Padraig Brady
2002-05-09 13:18 ` Pavel Machek
2002-05-07 17:10 ` Richard B. Johnson
2002-05-08 7:36 ` Martin Dalecki
2002-05-08 17:22 ` Greg KH
2002-05-08 18:46 ` Denis Vlasenko
2002-05-07 11:27 ` [PATCH] 2.5.14 IDE 57 Martin Dalecki
2002-05-07 13:16 ` Anton Altaparmakov
2002-05-07 12:34 ` Martin Dalecki
2002-05-07 13:56 ` Mikael Pettersson
2002-05-07 14:04 ` Dave Jones
2002-05-07 13:57 ` Anton Altaparmakov
2002-05-07 14:08 ` Dave Jones
2002-05-07 13:11 ` Martin Dalecki
2002-05-07 14:29 ` Anton Altaparmakov
2002-05-07 13:36 ` Martin Dalecki
2002-05-07 15:08 ` Anton Altaparmakov
2002-05-07 16:51 ` Dave Jones
2002-05-08 3:38 ` Anton Altaparmakov
2002-05-08 11:47 ` Dave Jones
2002-05-07 15:07 ` Padraig Brady
2002-05-07 17:21 ` Andre Hedrick
2002-05-11 14:09 ` Aaron Lehmann
2002-05-07 15:03 ` [PATCH] IDE 58 Martin Dalecki
2002-05-08 6:42 ` Paul Mackerras
2002-05-08 8:53 ` Martin Dalecki
2002-05-08 10:37 ` Bjorn Wesen
2002-05-08 10:16 ` Martin Dalecki
2002-05-08 19:06 ` Linus Torvalds
2002-05-08 19:10 ` Benjamin Herrenschmidt
2002-05-08 20:31 ` Alan Cox
2002-05-08 19:49 ` Benjamin Herrenschmidt
2002-05-08 20:44 ` Alan Cox
2002-05-08 20:04 ` Benjamin Herrenschmidt
2002-05-09 20:20 ` Ian Molton
2002-05-08 20:36 ` Andre Hedrick
2002-05-08 20:29 ` Andre Hedrick
2002-05-08 20:06 ` Benjamin Herrenschmidt
2002-05-09 12:14 ` Martin Dalecki
2002-05-09 15:19 ` Eric W. Biederman
2002-05-09 20:20 ` Ian Molton
2002-05-08 11:00 ` Benjamin Herrenschmidt
2002-05-09 19:58 ` [PATCH] 2.5.14 IDE 59 Martin Dalecki
2002-05-11 4:16 ` William Lee Irwin III
2002-05-11 16:59 ` [PATCH] 2.5.15 IDE 60 Martin Dalecki
2002-05-11 18:47 ` Pierre Rousselet
2002-05-11 19:12 ` Andre Hedrick
2002-05-11 19:52 ` Pierre Rousselet
2002-05-11 23:48 ` Andre Hedrick
2002-05-12 19:19 ` pdc202xx.c fails to compile in 2.5.15 Zlatko Calusic
2002-05-12 19:40 ` Jurriaan on Alpha
2002-05-12 22:00 ` Petr Vandrovec
2002-05-13 12:03 ` Alan Cox
2002-05-13 9:48 ` [PATCH] 2.5.15 IDE 61 Martin Dalecki
2002-05-13 12:17 ` [PATCH] 2.5.15 IDE 62 Martin Dalecki
2002-05-13 13:48 ` Jens Axboe
2002-05-13 13:02 ` Martin Dalecki
2002-05-13 15:38 ` Jens Axboe
2002-05-13 15:45 ` Martin Dalecki
2002-05-13 16:54 ` Linus Torvalds
2002-05-13 16:55 ` Jens Axboe
2002-05-13 16:00 ` Martin Dalecki
2002-05-13 18:02 ` benh
2002-05-13 15:50 ` Martin Dalecki
2002-05-13 17:52 ` benh
2002-05-13 15:55 ` Martin Dalecki
2002-05-13 19:13 ` benh
2002-05-14 8:48 ` Martin Dalecki
2002-05-17 11:40 ` Martin Dalecki
2002-05-17 2:27 ` Benjamin Herrenschmidt
2002-05-13 15:36 ` Tom Rini
2002-05-14 10:26 ` [PATCH] 2.5.15 IDE 62a Martin Dalecki
2002-05-14 10:28 ` [PATCH] 2.5.15 IDE 63 Martin Dalecki
2002-05-15 12:04 ` [PATCH] 2.5.15 IDE 64 Martin Dalecki
2002-05-15 13:12 ` Russell King
2002-05-15 12:14 ` Martin Dalecki
-- strict thread matches above, loose matches on Subject: below --
2002-05-08 21:14 [PATCH] 2.5.14 IDE 56 Andries.Brouwer
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