linux-kernel - Re: ext4+quota+nfs issue

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Message-ID: <20090910124056.GI607@duck.suse.cz>
Date:	Thu, 10 Sep 2009 14:40:56 +0200
From:	Jan Kara <jack@...e.cz>
To:	Mingming <cmm@...ibm.com>
Cc:	Eric Sandeen <sandeen@...hat.com>, Jiri Kosina <jkosina@...e.cz>,
	Pavol Cvengros <pavol.cvengros@...meinteractive.net>,
	linux-kernel@...r.kernel.org, Jan Kara <jack@...e.cz>,
	linux-ext4@...r.kernel.org
Subject: Re: ext4+quota+nfs issue

On Wed 09-09-09 14:32:09, Mingming wrote:
> On Wed, 2009-09-09 at 10:02 -0500, Eric Sandeen wrote:
> > Jiri Kosina wrote:
> > > [ adding relevant CCs ]
> > > 
> > > On Wed, 9 Sep 2009, Pavol Cvengros wrote:
> > > 
> > >> Hi,
> > >>
> > >> can somebody who is aware of ext4 and quota have a look on this one?
> > >>
> > 
> > This was also just reported at:
> > 
> > https://bugzilla.redhat.com/show_bug.cgi?id=521914
> > 
> 
> Checked the bugzilla, it seems the fs enabled quota, but no user quota
> limit is specified. Is this the case with the ext4 quota+ nfs issue too?
> 
> If no user quota is specified, then IS_NOQUOTA() should avoid doing
> quota reservation/claim at all. Not sure what is missing... I will check
> if I could reproduce this on local filesystem...
  Mingming, IS_NOQUOTA() check is true only for quota-files. For all other
files it is false since we have to know how much space each user uses even
if it does not have a quota limit set (for the case that someone sets the
limit in future).

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