From: Jan Kara <jack@suse.cz>
Subject: Re: [RFC] do you want jbd2 interface of ext3?
Date: Mon, 22 Feb 2010 19:02:47 +0100
Message-ID: <20100222180246.GA3112@quack.suse.cz>
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Cc: toshi.okajima@jp.fujitsu.com, Jan Kara <jack@suse.cz>,
	akpm@linux-foundation.org, adilger@sun.com,
	linux-ext4@vger.kernel.org
To: Theodore Tso <tytso@MIT.EDU>
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On Mon 22-02-10 08:55:53, Theodore Tso wrote:
> As for quota --- quite seriously --- if you have mission critical users,
> I'd suggest that they not use quota.  Dimitry has been turning up all
> sorts of bugs in the quota subsystem, many of which are just as
> applicable to ext3.  The real issue is that quota hasn't received as much
> testing as other file system features --- in any file system, not just
> ext4.
  I don't agree with this. I know about quite a few large customers
depending on quotas on their servers and they run on ext3 / reiserfs quite
happily. Dmitry's patches touching the generic code were mostly cleanups,
the fixes were just in the delayed allocation handling but that never
gets executed for ext3 or reiserfs...
  I don't say there cannot be bugs and certainly quota code has less
exposure than other more used filesystem parts. But I don't know about
any serious quota issue on ext3 / reiserfs in last two years or so
(except the one that was caused by Dmitry's fixes ;).

								Honza

-- 
Jan Kara <jack@suse.cz>
SUSE Labs, CR