Thanks for the patch Mark it has been committed.
Thanks
--Rich
commit b169249b1257d2a127484896a4a4ab2faf17f747
Author: Mark Tinguely <tinguely at sgi.com>
Date: Fri Aug 23 17:48:23 2013 +0000
xfs_io: v8 add the lseek() SEEK_DATA/SEEK_HOLE support