Thanks for the patch Eric and the review Jan, this has been committed.
--Rich
commit 0b5677123b5d8c0a29b45f55c7b981aeeca9b2c8
Author: Eric Sandeen <sandeen at redhat.com>
Date: Fri Apr 26 05:29:21 2013 +0000
xfstests: btrfs/276 - stop all fsstress before exiting