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From: Chris Wedgwood <cw@f00f.org>
To: Jan Kara <jack@suse.cz>
Cc: linux-fsdevel@vger.kernel.org
Subject: Re: [RFC] Ext3 online defrag
Date: Mon, 23 Oct 2006 21:21:51 -0700	[thread overview]
Message-ID: <20061024042151.GA12489@tuatara.stupidest.org> (raw)
In-Reply-To: <20061023122710.GA12034@atrey.karlin.mff.cuni.cz>

On Mon, Oct 23, 2006 at 02:27:10PM +0200, Jan Kara wrote:

>   I've written a simple patch implementing ext3 ioctl for file
> relocation.

Have you looked at XFS's ioctl XFS_IOC_SWAPEXT?  That seems like a
reasonably simple model to start with.

Breifly, the idea there is that you create a new file, copy the file
you wish to reorganize and then switch the extents.

What the userspace does now it pretty simplistic but with some effort
additional kernel interfaces could be added to make things a little
more optimal globally where possible (a lot of the requirements are
probably fs-specific though).

  parent reply	other threads:[~2006-10-24  4:21 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20061023122710.GA12034@atrey.karlin.mff.cuni.cz>
2006-10-23 14:16 ` [RFC] Ext3 online defrag Theodore Tso
2006-10-23 14:31   ` Alex Tomas
2006-10-23 14:48     ` Andreas Dilger
2006-10-23 14:55       ` Jan Kara
2006-10-23 14:51     ` Jan Kara
2006-10-23 15:01     ` Eric Sandeen
2006-10-24  4:14     ` Jeff Garzik
2006-10-24 13:59       ` David Chinner
2006-10-24 14:51         ` Dave Kleikamp
2006-10-24 16:01           ` David Chinner
2006-10-24 16:26             ` Dave Kleikamp
2006-10-25  1:18               ` David Chinner
2006-10-25  2:30                 ` Barry Naujok
2006-10-25  2:42                   ` Jeff Garzik
2006-10-25  4:27                     ` David Chinner
2006-10-25  4:48                       ` Jeff Garzik
2006-10-25  5:38                         ` David Chinner
2006-10-25  6:01                           ` Jeff Garzik
2006-10-25  8:11                             ` David Chinner
2006-10-25 17:00                               ` Jeff Garzik
2006-10-26  1:40                                 ` David Chinner
2006-10-26  3:33                                   ` Theodore Tso
2006-10-26  6:36                                     ` David Chinner
2006-10-26 13:37                                       ` Theodore Tso
2006-10-26 14:40                                         ` Dave Kleikamp
2006-10-26 11:37                                   ` Jan Kara
2006-10-27  1:32                                     ` David Chinner
2006-10-24 14:52         ` Eric Sandeen
2006-10-24 19:44         ` Theodore Tso
2006-10-24 20:31           ` Russell Cattelan
2006-10-24 23:00           ` Andreas Dilger
2006-10-25 14:54             ` Jan Kara
2006-10-25 17:02               ` Jeff Garzik
2006-10-25 17:58                 ` Jan Kara
2006-10-25 18:08                   ` Jeff Garzik
2006-10-25 18:25                     ` Jan Kara
2006-10-25 18:33                       ` Jeff Garzik
2006-10-26  9:30               ` Andreas Dilger
2006-10-25  2:09           ` David Chinner
2006-10-23 14:45   ` Jan Kara
2006-10-23 15:14   ` Andreas Dilger
2006-10-23 16:03     ` Jan Kara
2006-10-23 17:29       ` Andreas Dilger
2006-10-25 18:36         ` Jan Kara
2006-10-25 18:41           ` Jeff Garzik
2006-10-26 15:25             ` Jörn Engel
2006-10-24  4:13 ` Jeff Garzik
2006-10-24  4:21 ` Chris Wedgwood [this message]
2006-10-24 10:09   ` Jan Kara
2006-10-27  7:23 sho
2006-10-27  7:44 ` Alex Tomas
2006-10-27 13:53   ` Eric Sandeen
2006-10-27 14:05     ` Alex Tomas
2006-10-27 14:24       ` Eric Sandeen
2006-10-27 14:39         ` Alex Tomas
2006-11-15  9:54   ` Takashi Sato

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