[PATCH v3] xfstests: add regression test for running btrfs balance and defrag concurrently

[Rich Johnston]

This has been committed.

Thanks
--Rich

commit 6bd85c0a995af4df28b354450e6df658257b559b
Author: Liu Bo <bo.li.liu at oracle.com>
Date:   Thu Oct 31 09:34:22 2013 +0000

     xfstests: add regression test for running btrfs balance and defrag 
concurrently