From: Andrea Arcangeli <andrea@suse.de>
To: "Eric W. Biederman" <ebiederman@uswest.net>
Cc: Linus Torvalds <torvalds@transmeta.com>,
Alexander Viro <viro@math.psu.edu>,
Daniel Phillips <phillips@innominate.de>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC] Generic deferred file writing
Date: Sun, 31 Dec 2000 02:02:34 +0100 [thread overview]
Message-ID: <20001231020234.A15179@athlon.random> (raw)
In-Reply-To: <Pine.LNX.4.10.10012301214210.1017-100000@penguin.transmeta.com> <m1u27lpo1g.fsf@frodo.biederman.org>
In-Reply-To: <m1u27lpo1g.fsf@frodo.biederman.org>; from ebiederman@uswest.net on Sat, Dec 30, 2000 at 03:00:43PM -0700
On Sat, Dec 30, 2000 at 03:00:43PM -0700, Eric W. Biederman wrote:
> To get ENOSPC handling 99% correct all we need to do is decrement a counter,
> that remembers how many disks blocks are free. If we need a better
Yes, we need to add one field to the in-core superblock to do this accounting.
> estimate than just the data blocks it should not be hard to add an
> extra callback to the filesystem.
Yes, I was thinking at this callback too. Such a callback is nearly the only
support we need from the filesystem to provide allocate on flush. Allocate on
flush is a pagecache issue, not really a filesystem issue. When a filesystem
doesn't implement such callback we can simply get_block(create) at pagecache
creation time as usual.
Andrea
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next prev parent reply other threads:[~2000-12-31 1:33 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-12-30 0:25 test13-pre6 Linus Torvalds
2000-12-30 0:49 ` test13-pre6 Alexander Viro
2000-12-30 1:03 ` test13-pre6 Linus Torvalds
2000-12-30 18:09 ` test13-pre6 Alexander Viro
2000-12-30 2:25 ` test13-pre6 Daniel Phillips
2000-12-30 3:16 ` test13-pre6 Linus Torvalds
2000-12-30 18:58 ` [RFC] Generic deferred file writing Daniel Phillips
2000-12-30 20:05 ` Linus Torvalds
2000-12-30 20:06 ` Alexander Viro
2000-12-30 20:21 ` Linus Torvalds
2000-12-30 21:10 ` Andreas Dilger
2000-12-30 21:46 ` Alexander Viro
2000-12-30 23:12 ` Daniel Phillips
2000-12-30 22:00 ` Eric W. Biederman
2000-12-30 22:44 ` Linus Torvalds
2000-12-31 0:26 ` Eric W. Biederman
2000-12-31 1:02 ` Andrea Arcangeli [this message]
2000-12-31 1:13 ` Chris Wedgwood
2000-12-31 1:50 ` Alexander Viro
2000-12-31 2:34 ` Andrea Arcangeli
2000-12-31 2:09 ` Roman Zippel
2000-12-31 2:28 ` Linus Torvalds
2000-12-31 12:58 ` Roman Zippel
2001-04-21 20:06 ` Races in affs_unlink(), affs_rmdir() and affs_rename() Alexander Viro
2001-04-21 22:16 ` Roman Zippel
2001-04-22 5:53 ` Alexander Viro
2001-04-22 12:57 ` Roman Zippel
2001-04-22 13:15 ` Alexander Viro
2000-12-31 14:38 ` [RFC] Generic deferred file writing Andrea Arcangeli
2000-12-31 16:33 ` Linus Torvalds
2000-12-31 16:50 ` Andrea Arcangeli
2000-12-31 16:51 ` Alexander Viro
2000-12-31 17:12 ` Linus Torvalds
2000-12-31 18:30 ` Daniel Phillips
2000-12-31 18:44 ` Linus Torvalds
2000-12-31 19:10 ` Daniel Phillips
2000-12-31 19:31 ` Linus Torvalds
2000-12-31 21:03 ` Roman Zippel
2000-12-31 21:32 ` Linus Torvalds
2001-01-02 18:27 ` Chris Mason
2000-12-30 3:08 ` test13-pre6 (Fork Bug with Athlons? Temporary Fix) Byron Stanoszek
2000-12-30 3:36 ` Linus Torvalds
2000-12-30 5:55 ` Andi Kleen
2000-12-30 5:13 ` Linus Torvalds
2000-12-30 8:13 ` Graham Murray
2000-12-30 4:21 ` test13-pre6 Dan Aloni
2001-01-04 20:23 ` test13-pre6 Stephen C. Tweedie
2001-01-04 22:15 ` test13-pre6 stewart
[not found] <Pine.LNX.4.10.10012311726230.1671-100000@penguin.transmeta.com>
2001-01-01 2:50 ` [RFC] Generic deferred file writing Roman Zippel
2001-01-01 3:47 ` Alexander Viro
2001-01-01 12:44 ` Roman Zippel
2001-01-01 15:16 ` Alexander Viro
2001-01-02 3:00 ` Roman Zippel
2001-01-02 5:00 ` Alexander Viro
2001-01-02 16:53 ` Roman Zippel
2001-01-01 20:00 ` Daniel Phillips
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