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Re: 2.6.38: Quota over NFS4

To: Adam Lackorzynski <adam@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: 2.6.38: Quota over NFS4
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Thu, 24 Mar 2011 13:17:05 -0400
Cc: "J. Bruce Fields" <bfields@xxxxxxxxxxxx>, linux-nfs@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx
In-reply-to: <20110323223017.GA5177@xxxxxxxxxxxxxxxxxxxx>
References: <20110320212633.GA26036@xxxxxxxxxxxx> <20110320213111.GO11929@xxxxxxxxxxxxxxxxxxxx> <20110320214316.GB26036@xxxxxxxxxxxx> <20110321184043.GC4992@xxxxxxxxxxxxxxxxxxxx> <20110321222301.GB472@xxxxxxxxxxxx> <20110322221305.GA5857@xxxxxxxxxxxxxxxxxxxx> <20110323150328.GD23418@xxxxxxxxxxxx> <20110323174052.GE5005@xxxxxxxxxxxxxxxxxxxx> <20110323190632.GA26306@xxxxxxxxxxxx> <20110323223017.GA5177@xxxxxxxxxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Wed, Mar 23, 2011 at 11:30:17PM +0100, Adam Lackorzynski wrote:
> I probably mistyped something and thus bisected again:

maybe this is just a symptom.  When was the nfs4 code converted
to just use a single open struct file, and what are the lifetime
rules for it?  It would easily be that a long alive file might
make XFS keep persistent preallocations longer or similar issues.

Adam, can you create a loop filesystem with ext3 or something else
on it and see if the problem is XFS-specific?

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