_supported_fs xfs
_supported_os Linux
-_require_scratch_dax
+_require_scratch_dax_mountopt "dax"
_require_test_program "feature"
_require_test_program "t_mmap_dio"
-_require_xfs_io_command "chattr" "x"
+_require_dax_iflag
_require_xfs_io_command "falloc"
prep_files()