a couple xfstests fixes for reflinks

Thu Jan 28 15:02:55 CST 2016

On Thu, Jan 28, 2016 at 06:13:52PM +0100, Christoph Hellwig wrote:
> See http://www.infradead.org/rpr.html

Hrmm, have I been sending junk again?  I've noticed a few transient problems
with Oracle's mailservers lately...

> The patches (against Darrick's for-dave branch) fix various failures I see
> during testing XFS and NFS.

I've integrated your fixes with my dev tree and pushed to github.

There's a bunch of new tests in there to look at quota behaviors.  Evidently
btrfs doesn't support classic usr/group quotas(?) and ocfs2 exploded when I
tried it, so for now I'll just charge each quota at reflink time; copy on write
is therefore "free".

--D