From: Ted Ts'o <tytso@mit.edu>
To: Rogier Wolff <R.E.Wolff@BitWizard.nl>
Cc: Amir Goldstein <amir73il@gmail.com>,
Ric Wheeler <rwheeler@redhat.com>,
Con Kolivas <kernel@kolivas.org>,
adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org
Subject: Re: Regular ext4 error warning with HD in USB dock
Date: Sat, 8 Jan 2011 17:00:59 -0500 [thread overview]
Message-ID: <20110108220059.GV21922@thunk.org> (raw)
In-Reply-To: <20110108080520.GE12433@bitwizard.nl>
On Sat, Jan 08, 2011 at 09:05:20AM +0100, Rogier Wolff wrote:
> Although those two numbers are equal right now, there is no reason to
> assume that they will remain so in the future. So if the superblock
> size (or the offset) changes in the future, it's much better to have
> programmed this so that it will keep on working as opposed to getting
> to deal with ugly bugs in code that hasn't changed in years...
No. The superblock nor its offset will never change. It's like the
syscall ABI, only worse. If we changed it would break *everybody*.
Fortunately there is a huge amount of space left over in the 1024 byte
superblock.
- Ted
next prev parent reply other threads:[~2011-01-08 22:01 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-27 22:53 Regular ext4 error warning with HD in USB dock Con Kolivas
2010-12-28 2:53 ` Ted Ts'o
2010-12-28 8:19 ` Rogier Wolff
2010-12-28 9:09 ` Con Kolivas
2010-12-28 10:30 ` Amir Goldstein
2010-12-28 10:30 ` Amir Goldstein
2011-01-01 17:20 ` Ric Wheeler
2011-01-02 19:23 ` Amir Goldstein
2011-01-07 5:26 ` Ted Ts'o
2011-01-07 19:41 ` Amir Goldstein
2011-01-07 21:07 ` Amir Goldstein
2011-01-07 22:12 ` Amir Goldstein
2011-01-08 20:28 ` Amir Goldstein
2011-01-08 8:05 ` Rogier Wolff
2011-01-08 20:06 ` Amir Goldstein
2011-01-08 22:00 ` Ted Ts'o [this message]
2011-01-09 8:12 ` Rogier Wolff
2011-01-09 14:58 ` Ted Ts'o
2011-01-10 7:45 ` Andreas Dilger
2011-01-10 8:49 ` Rogier Wolff
2011-01-07 5:28 ` Ted Ts'o
2011-01-07 19:43 ` Amir Goldstein
2011-01-07 20:39 ` Amir Goldstein
2010-12-28 14:15 ` Ted Ts'o
2010-12-28 10:41 ` torn5
[not found] ` <4D19BEF1.9010708-9AbUPqfR1/2XDw4h08c5KA@public.gmane.org>
2010-12-28 14:32 ` Ted Ts'o
2010-12-28 14:32 ` Ted Ts'o
2010-12-28 15:02 ` Ben Pfaff
2010-12-28 15:20 ` torn5
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