From: Edgar Toernig <froese@gmx.de>
To: Daniel Phillips <phillips@bonn-fries.net>
Cc: Oliver Xymoron <oxymoron@waste.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH]device arguments from lookup)
Date: Sun, 27 May 2001 15:32:29 +0200 [thread overview]
Message-ID: <3B1101ED.3BF181F6@gmx.de> (raw)
In-Reply-To: <Pine.LNX.4.30.0105220957400.19818-100000@waste.org> <0105251300000V.06233@starship> <3B0F1DF9.238C01B9@gmx.de> <0105270036060Z.06233@starship>
Daniel Phillips wrote:
>
> It won't, the open for "." is handled in the VFS, not the filesystem -
> it will open the directory. (Without needing to be told it's a
> directory via O_DIRECTORY.) If you do open("magicdev") you'll get the
> device, because that's handled by magicdevfs.
You really mean that "magicdev" is a directory and:
open("magicdev/.", O_RDONLY);
open("magicdev", O_RDONLY);
would both succeed but open different objects?
> I'm not claiming there isn't breakage somewhere,
you break UNIX fundamentals. But I'm quite relieved now because I'm
pretty sure that something like that will never go into the kernel.
Ciao, ET.
next prev parent reply other threads:[~2001-05-27 13:47 UTC|newest]
Thread overview: 161+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-19 6:23 [RFD w/info-PATCH] device arguments from lookup, partion code in userspace Ben LaHaise
2001-05-19 6:57 ` [RFD w/info-PATCH] device arguments from lookup, partion code inuserspace Andrew Clausen
2001-05-19 7:04 ` Alexander Viro
2001-05-19 7:23 ` Andrew Clausen
2001-05-19 8:30 ` Alexander Viro
2001-05-19 10:13 ` Andrew Clausen
2001-05-19 14:02 ` [RFD w/info-PATCH] device arguments from lookup, partion code Alan Cox
2001-05-19 16:48 ` Erik Mouw
2001-05-19 17:45 ` Aaron Lehmann
2001-05-19 19:38 ` Erik Mouw
2001-05-19 20:53 ` Steven Walter
2001-05-19 18:51 ` Richard Gooch
2001-05-20 2:18 ` Matthew Wilcox
2001-05-20 2:22 ` Richard Gooch
2001-05-20 2:34 ` Matthew Wilcox
2001-05-20 2:48 ` Richard Gooch
2001-05-20 3:26 ` Linus Torvalds
2001-05-20 10:23 ` Russell King
2001-05-20 10:35 ` Alexander Viro
2001-05-20 18:46 ` Linus Torvalds
2001-05-20 18:57 ` Russell King
2001-05-20 19:10 ` Linus Torvalds
2001-05-20 19:42 ` Alexander Viro
2001-05-20 20:07 ` Alan Cox
2001-05-20 20:33 ` Alexander Viro
2001-05-20 23:59 ` Paul Fulghum
2001-05-21 0:36 ` Alexander Viro
2001-05-21 3:08 ` Paul Fulghum
2001-05-20 20:07 ` Alan Cox
2001-05-20 23:46 ` Ingo Molnar
2001-05-21 0:32 ` Alexander Viro
2001-05-21 3:12 ` Linus Torvalds
2001-05-21 19:32 ` Kai Henningsen
2001-05-23 1:15 ` Albert D. Cahalan
2001-05-20 2:36 ` Alexander Viro
2001-05-20 2:51 ` Richard Gooch
2001-05-20 21:13 ` Pavel Machek
2001-05-21 20:20 ` Alan Cox
2001-05-21 20:41 ` Alexander Viro
2001-05-21 21:29 ` Alan Cox
2001-05-21 21:51 ` Alexander Viro
2001-05-21 21:56 ` Alan Cox
2001-05-21 22:10 ` Linus Torvalds
2001-05-21 22:22 ` Alexander Viro
2001-05-22 2:28 ` Paul Mackerras
2001-05-22 15:41 ` Oliver Xymoron
2001-05-22 13:33 ` Jan Harkes
2001-05-22 16:30 ` Linus Torvalds
2001-05-22 0:22 ` Ingo Oeser
2001-05-22 0:57 ` Matthew Wilcox
2001-05-22 1:13 ` Linus Torvalds
2001-05-22 1:18 ` Matthew Wilcox
2001-05-22 7:49 ` Alan Cox
2001-05-22 15:31 ` Matthew Wilcox
2001-05-22 15:31 ` Alan Cox
2001-05-22 15:38 ` Matthew Wilcox
2001-05-22 15:42 ` Alan Cox
2001-05-20 2:31 ` Alexander Viro
2001-05-20 16:57 ` David Woodhouse
2001-05-20 19:02 ` Linus Torvalds
2001-05-20 19:11 ` Alexander Viro
2001-05-20 19:18 ` Matthew Wilcox
2001-05-20 19:24 ` Alexander Viro
2001-05-20 19:34 ` Linus Torvalds
2001-05-20 19:27 ` Linus Torvalds
2001-05-20 19:33 ` Alexander Viro
2001-05-20 19:38 ` Linus Torvalds
2001-05-20 19:57 ` David Woodhouse
2001-05-21 13:57 ` Ingo Oeser
2001-05-19 9:11 ` [RFD w/info-PATCH] device arguments from lookup, partion code inuserspace Andrew Morton
2001-05-19 9:20 ` Alexander Viro
2001-05-19 7:58 ` Ben LaHaise
2001-05-19 8:10 ` Alexander Viro
2001-05-19 8:16 ` Ben LaHaise
2001-05-19 8:32 ` Alexander Viro
2001-05-19 9:42 ` [RFD w/info-PATCH] device arguments from lookup, partion code in userspace Christer Weinigel
2001-05-19 9:51 ` Christer Weinigel
2001-05-19 11:37 ` Eric W. Biederman
2001-05-19 14:25 ` Daniel Phillips
2001-05-21 8:14 ` Lars Marowsky-Bree
2001-05-22 9:07 ` Daniel Phillips
2001-05-19 13:53 ` Daniel Phillips
2001-05-19 13:57 ` Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH] device arguments from lookup) Alexander Viro
2001-05-19 15:10 ` Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH]device " Abramo Bagnara
2001-05-19 15:18 ` Alexander Viro
2001-05-19 16:01 ` Willem Konynenberg
2001-05-20 20:52 ` Pavel Machek
2001-05-20 20:53 ` Pavel Machek
2001-05-19 18:13 ` Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH] device " Linus Torvalds
2001-05-19 23:19 ` Alexander Viro
2001-05-19 23:31 ` Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH]device " Jeff Garzik
2001-05-19 23:32 ` Jeff Garzik
2001-05-19 23:39 ` Alexander Viro
2001-05-20 15:47 ` F_CTRLFD (was Re: Why side-effects on open(2) are evil.) Edgar Toernig
2001-05-20 16:20 ` Alexander Viro
2001-05-20 19:01 ` Edgar Toernig
2001-05-20 19:30 ` Alexander Viro
2001-05-21 17:16 ` Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH]device arguments from lookup) Oliver Xymoron
2001-05-21 16:26 ` David Lang
2001-05-21 18:04 ` Oliver Xymoron
2001-05-21 20:14 ` Daniel Phillips
2001-05-22 15:24 ` Oliver Xymoron
2001-05-22 16:51 ` Daniel Phillips
2001-05-22 17:49 ` Oliver Xymoron
2001-05-22 20:22 ` Daniel Phillips
2001-05-23 4:19 ` Edgar Toernig
2001-05-23 4:50 ` Alexander Viro
2001-05-23 13:50 ` Daniel Phillips
2001-05-23 13:50 ` Daniel Phillips
2001-05-23 15:58 ` Oliver Xymoron
2001-05-24 0:23 ` Edgar Toernig
2001-05-24 7:47 ` Marko Kreen
2001-05-24 14:39 ` Oliver Xymoron
2001-05-24 15:20 ` CHR/BLK needed? was: Re: Why side-effects on open Marko Kreen
2001-05-24 17:12 ` Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH]device Albert D. Cahalan
2001-05-24 17:25 ` Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH]device arguments from lookup) Daniel Phillips
2001-05-24 20:59 ` Edgar Toernig
2001-05-24 21:26 ` Alexander Viro
2001-05-25 1:03 ` Daniel Phillips
2001-05-25 11:00 ` Daniel Phillips
2001-05-26 3:07 ` Edgar Toernig
2001-05-26 22:36 ` Daniel Phillips
2001-05-27 13:32 ` Edgar Toernig [this message]
2001-05-27 20:40 ` Ben LaHaise
2001-05-27 20:45 ` Daniel Phillips
2001-05-27 21:50 ` Marko Kreen
2001-05-28 1:26 ` Horst von Brand
2001-05-29 10:54 ` Daniel Phillips
2001-05-29 13:54 ` Horst von Brand
2001-05-19 23:52 ` Edgar Toernig
2001-05-20 0:18 ` Alexander Viro
2001-05-20 0:32 ` Linus Torvalds
2001-05-20 0:52 ` Jeff Garzik
2001-05-20 1:03 ` Jeff Garzik
2001-05-20 19:41 ` Why side-effects on open(2) are evil. (was Re: [RFD Alan Cox
2001-05-21 9:45 ` Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH]device arguments from lookup) Andrew Clausen
2001-05-21 17:22 ` Oliver Xymoron
2001-05-22 18:53 ` Andreas Dilger
2001-05-24 9:20 ` Malcolm Beattie
2001-05-24 19:15 ` Andreas Dilger
2001-05-22 18:41 ` Andreas Dilger
2001-05-22 19:06 ` Linus Torvalds
2001-05-22 19:16 ` Peter J. Braam
2001-05-22 20:10 ` Andreas Dilger
2001-05-22 20:59 ` Peter J. Braam
2001-05-23 9:23 ` Stephen C. Tweedie
2001-05-24 21:07 ` Daniel Phillips
2001-05-24 22:00 ` Hans Reiser
2001-05-25 10:56 ` Daniel Phillips
2001-06-01 3:24 ` [reiserfs-list] " Hans Reiser
2001-05-23 9:13 ` Stephen C. Tweedie
2001-05-20 20:23 ` Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH] device " Pavel Machek
2001-05-21 20:38 ` Alexander Viro
2001-05-19 18:31 ` [RFD w/info-PATCH] device arguments from lookup, partion code in userspace Linus Torvalds
-- strict thread matches above, loose matches on Subject: below --
2001-05-19 14:19 Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH] device arguments from lookup) Andries.Brouwer
2001-05-19 14:58 ` Alexander Viro
2001-05-19 16:41 Andries.Brouwer
2001-05-19 16:51 ` Alexander Viro
2001-05-19 17:14 ` Matthew Wilcox
2001-05-19 23:24 ` Alexander Viro
2001-05-20 11:18 ` Matthew Kirkwood
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