From: Thomas Gleixner <tglx@linutronix.de>
To: "Jörn Engel" <joern@logfs.org>
Cc: Linus Torvalds <torvalds@osdl.org>,
linux-mtd@lists.infradead.org,
Linux Kernel list <linux-kernel@vger.kernel.org>,
matthieu castet <castet.matthieu@free.fr>
Subject: Re: LogFS merge
Date: Sun, 4 May 2008 18:20:23 +0200 (CEST) [thread overview]
Message-ID: <alpine.LFD.1.10.0805041809370.3318@apollo.tec.linutronix.de> (raw)
In-Reply-To: <20080503120005.GA32608@logfs.org>
[-- Attachment #1: Type: TEXT/PLAIN, Size: 708 bytes --]
On Sat, 3 May 2008, Jörn Engel wrote:
> 1.
> Ubifs takes the easy approach and uses ubi for wear leveling, bad block
> handling, ets. Saves a ton of work, gives quick results and is limited
> by ubi scan time, which is O(n).
Which is easy enough to fix.
> Logfs ignores ubi and does wear leveling, bad block handling, etc.
> itself. Bad block handling in particular is not too robust yet. If you
> expect blocks to rot away after mkfs time, logfs is a bad choice.
It's a matter of fact that especially on NAND flash blocks become bad
over time, i.e. after mkfs. So that's a pretty crucial feature which
needs to be complete and robust before it's declared to be usable on
such devices.
Thanks,
tglx
next prev parent reply other threads:[~2008-05-04 16:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-03 9:29 LogFS merge matthieu castet
2008-05-03 12:00 ` Jörn Engel
2008-05-04 16:20 ` Thomas Gleixner [this message]
2008-05-04 18:04 ` Josh Boyer
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