2.6.38: Quota over NFS4

[J. Bruce Fields]

On Thu, Mar 24, 2011 at 01:17:05PM -0400, Christoph Hellwig wrote:
> 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.

Definitely, the commit he's bisect to there seems much more likely to be
a culprit.  I'll take a closer look....

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

Originally it sounded like he was able to reproduce this only on one
specific filesystem so I wondered whether there was something particular
to that filesystem.

--b.