From: "Albert D. Cahalan" <acahalan@cs.uml.edu>
To: hpa@zytor.com (H. Peter Anvin)
Cc: linux-kernel@vger.kernel.org
Subject: Re: Getting FS access events
Date: Tue, 15 May 2001 18:31:28 -0400 (EDT) [thread overview]
Message-ID: <200105152231.f4FMVSC246046@saturn.cs.uml.edu> (raw)
In-Reply-To: <9ds01m$7q9$1@cesium.transmeta.com> from "H. Peter Anvin" at May 15, 2001 12:28:54 PM
H. Peter Anvin writes:
> This would leave no way (without introducing new interfaces) to write,
> for example, the boot block on an ext2 filesystem. Note that the
> bootblock (defined as the first 1024 bytes) is not actually used by
> the filesystem, although depending on the block size it may share a
> block with the superblock (if blocksize > 1024).
The lack of coherency would screw this up anyway, doesn't it?
You have a block device, soon to be in the page cache, and
a superblock, also soon to be in the page cache. LILO writes to
the block device, while the ext2 driver updates the superblock.
Whatever gets written out last wins, and the other is lost.
next prev parent reply other threads:[~2001-05-15 22:32 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200105140117.f4E1HqN07362@vindaloo.ras.ucalgary.ca>
2001-05-14 1:32 ` Linus Torvalds
2001-05-14 1:45 ` Larry McVoy
2001-05-14 2:39 ` Richard Gooch
2001-05-14 3:09 ` Rik van Riel
2001-05-14 4:27 ` Richard Gooch
2001-05-15 4:37 ` Chris Wedgwood
2001-05-23 11:37 ` Stephen C. Tweedie
2001-05-14 2:24 ` Richard Gooch
2001-05-14 4:46 ` Linus Torvalds
2001-05-14 5:15 ` Richard Gooch
2001-05-14 13:04 ` Daniel Phillips
2001-05-14 18:00 ` Andreas Dilger
2001-05-14 20:16 ` Linus Torvalds
2001-05-14 23:19 ` Richard Gooch
2001-05-15 0:42 ` Daniel Phillips
2001-05-15 4:00 ` Linus Torvalds
2001-05-15 4:35 ` Larry McVoy
2001-05-15 4:59 ` Alexander Viro
2001-05-15 17:01 ` Pavel Machek
2001-05-15 4:43 ` Linus Torvalds
2001-05-15 5:04 ` Alexander Viro
2001-05-15 16:17 ` Pavel Machek
2001-05-19 19:39 ` Linus Torvalds
2001-05-19 19:44 ` Pavel Machek
2001-05-19 19:47 ` Linus Torvalds
2001-05-23 11:29 ` Stephen C. Tweedie
2001-05-20 4:30 ` Chris Wedgwood
2001-05-20 19:47 ` Alan Cox
2001-05-18 7:55 ` Rogier Wolff
2001-05-23 11:36 ` Stephen C. Tweedie
2001-05-15 4:57 ` David S. Miller
2001-05-15 5:12 ` Alexander Viro
2001-05-15 9:10 ` Alan Cox
2001-05-15 9:48 ` Lars Brinkhoff
2001-05-15 9:54 ` Alexander Viro
2001-05-15 20:17 ` Kai Henningsen
2001-05-15 20:58 ` Alexander Viro
2001-05-15 21:08 ` Alexander Viro
2001-05-15 6:20 ` Richard Gooch
2001-05-15 6:28 ` Linus Torvalds
2001-05-15 6:49 ` Richard Gooch
2001-05-15 6:57 ` Alexander Viro
2001-05-15 10:33 ` Daniel Phillips
2001-05-15 10:44 ` Alexander Viro
2001-05-15 14:42 ` Daniel Phillips
2001-05-15 7:13 ` Linus Torvalds
2001-05-15 7:56 ` Chris Wedgwood
2001-05-15 8:06 ` Linus Torvalds
2001-05-15 8:33 ` Alexander Viro
2001-05-15 10:27 ` David Woodhouse
2001-05-15 16:00 ` Chris Mason
2001-05-15 19:26 ` H. Peter Anvin
2001-05-15 20:03 ` Alexander Viro
2001-05-15 20:07 ` H. Peter Anvin
2001-05-15 20:15 ` Alexander Viro
2001-05-15 20:17 ` H. Peter Anvin
2001-05-15 20:22 ` Alexander Viro
2001-05-15 20:26 ` H. Peter Anvin
2001-05-15 20:31 ` Alexander Viro
2001-05-15 21:12 ` Linus Torvalds
2001-05-15 21:22 ` H. Peter Anvin
2001-05-15 21:02 ` Linus Torvalds
2001-05-15 21:53 ` Jan Harkes
2001-05-19 5:26 ` Chris Wedgwood
2001-05-15 10:04 ` Anton Altaparmakov
2001-05-15 19:28 ` H. Peter Anvin
2001-05-15 22:31 ` Albert D. Cahalan [this message]
2001-05-15 22:35 ` H. Peter Anvin
2001-05-16 1:17 ` Anton Altaparmakov
2001-05-16 1:30 ` H. Peter Anvin
2001-05-16 8:34 ` Anton Altaparmakov
2001-05-16 16:27 ` H. Peter Anvin
2001-05-15 16:26 ` Pavel Machek
2001-05-15 18:02 ` Craig Milo Rogers
2001-05-15 6:13 ` Richard Gooch
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