From: Willy Tarreau <w@1wt.eu>
To: "Jörn Engel" <joern@lazybastard.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mtd@lists.infradead.org,
Albert Cahalan <acahalan@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Jan Engelhardt <jengelh@linux01.gwdg.de>,
Evgeniy Polyakov <johnpol@2ka.mipt.ru>,
Pekka Enberg <penberg@cs.helsinki.fi>, Greg KH <greg@kroah.com>,
Ingo Oeser <ioe-lkml@rameria.de>
Subject: Re: [PATCH] LogFS take three
Date: Wed, 16 May 2007 07:22:54 +0200 [thread overview]
Message-ID: <20070516052253.GI943@1wt.eu> (raw)
In-Reply-To: <20070516000630.GD1220@lazybastard.org>
On Wed, May 16, 2007 at 02:06:31AM +0200, Jörn Engel wrote:
> On Tue, 15 May 2007 13:37:59 -0700, Andrew Morton wrote:
> > It's strange and a bit regrettable that an fs would have dependency on MTD,
> > really.
>
> It is and changing this wouldn't be too hard. All device access goes
> through five functions (read, write, erase, is_bad and mark_bad). As
> soon as someone seriously cares I will add a struct logfs_device_ops and
> have a second set of these functions for block devices.
>
> On hard disks it shouldn't make too much sense. The filesystem will
> fragment like a splinter bomb and be just as popular.
On hard disks, yes, but as you suggested, there are lots of other flash
devices interfaced as block devices. CompactFlash comes to mind, USB
keys too. And on these ones, the most important is to reduce the number
of writes and to support large sizes. I already see LogFS as an interesting
alternative to JFFS2 on such devices, eventhough it does not (yet?) support
compression.
Regards,
Willy
next prev parent reply other threads:[~2007-05-16 5:22 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-15 15:19 [PATCH] LogFS take three Jörn Engel
2007-05-15 15:21 ` Review status (Re: [PATCH] LogFS take three) Jörn Engel
2007-05-17 16:03 ` Evgeniy Polyakov
2007-05-17 17:10 ` Jörn Engel
2007-05-20 17:30 ` Evgeniy Polyakov
2007-05-23 12:58 ` Jörn Engel
2007-05-23 15:07 ` Evgeniy Polyakov
2007-05-23 15:14 ` Jörn Engel
2007-05-23 15:53 ` Evgeniy Polyakov
2007-05-15 18:37 ` [PATCH] LogFS take three Sam Ravnborg
2007-05-15 19:10 ` Jörn Engel
2007-05-15 19:07 ` John Stoffel
2007-05-15 19:19 ` Jörn Engel
2007-05-16 4:54 ` David Woodhouse
2007-05-16 11:09 ` Jörn Engel
2007-05-16 11:34 ` Jamie Lokier
2007-05-16 11:38 ` Artem Bityutskiy
2007-05-16 12:25 ` Jamie Lokier
2007-05-16 12:49 ` Jörn Engel
2007-05-16 11:50 ` Jörn Engel
2007-05-16 12:06 ` CaT
2007-05-17 17:07 ` Jan Engelhardt
2007-05-16 12:29 ` Evgeniy Polyakov
2007-05-16 12:55 ` Jörn Engel
2007-05-17 17:08 ` Jan Engelhardt
2007-05-16 13:41 ` John Stoffel
2007-05-16 13:53 ` Jörn Engel
2007-05-16 14:04 ` David Woodhouse
2007-05-16 14:13 ` Artem Bityutskiy
2007-05-16 14:17 ` Kevin Bowling
2007-05-17 9:12 ` Pavel Machek
2007-05-17 9:52 ` David Woodhouse
2007-05-19 15:00 ` Bill Davidsen
2007-05-16 14:29 ` CaT
2007-05-17 17:14 ` Jan Engelhardt
2007-05-19 14:45 ` David Weinehall
2007-05-19 16:17 ` Jamie Lokier
2007-05-19 16:27 ` Evgeniy Polyakov
2007-05-17 16:59 ` Jan Engelhardt
2007-05-17 11:39 ` Arnd Bergmann
2007-05-15 20:37 ` Andrew Morton
2007-05-16 0:06 ` Jörn Engel
2007-05-16 2:11 ` Jörn Engel
2007-05-16 5:22 ` Willy Tarreau [this message]
2007-05-16 11:23 ` Jörn Engel
2007-05-17 17:26 ` Jan Engelhardt
2007-05-17 17:45 ` Evgeniy Polyakov
2007-05-18 1:00 ` Kyle Moffett
2007-05-18 6:16 ` Jan Engelhardt
2007-05-16 12:07 ` David Woodhouse
2007-05-16 15:34 ` Andrew Morton
2007-05-16 15:49 ` David Woodhouse
2007-05-16 16:41 ` Jörn Engel
[not found] ` <7fe698080705162312t4e7ed90byd10ef8e664027b17@mail.gmail.com>
2007-05-17 6:25 ` David Woodhouse
2007-05-17 8:20 ` Dongjun Shin
2007-05-17 8:43 ` David Woodhouse
2007-05-17 12:05 ` Jörn Engel
2007-05-17 20:18 ` Pavel Machek
2007-05-18 0:01 ` Dongjun Shin
2007-05-18 6:17 ` Jan Engelhardt
2007-05-18 6:47 ` David Woodhouse
2007-05-19 15:18 ` Bill Davidsen
2007-05-19 6:15 ` Rob Landley
2007-05-19 9:24 ` Jan Engelhardt
2007-05-19 17:26 ` Rob Landley
2007-05-15 23:26 ` Albert Cahalan
2007-05-16 0:09 ` Jörn Engel
2007-05-16 11:18 ` Jamie Lokier
2007-05-16 12:08 ` Pekka Enberg
2007-05-16 12:58 ` Jörn Engel
2007-05-16 2:37 ` Roland Dreier
2007-05-16 11:35 ` Jörn Engel
2007-05-16 10:21 ` Pekka J Enberg
2007-05-16 12:26 ` Jörn Engel
2007-05-16 12:36 ` Pekka Enberg
2007-05-16 12:38 ` Pekka Enberg
2007-05-16 13:20 ` Jörn Engel
2007-05-17 20:58 ` Pekka Enberg
2007-05-17 21:36 ` Arnd Bergmann
2007-05-17 21:50 ` Jörn Engel
2007-05-16 19:17 ` Pavel Machek
2007-05-16 19:23 ` Jörn Engel
2007-05-17 15:08 ` Arnd Bergmann
2007-05-17 20:21 ` Jörn Engel
2007-05-17 21:00 ` Arnd Bergmann
2007-05-17 21:30 ` Jörn Engel
2007-05-17 22:01 ` Jamie Lokier
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