+
+
+==========================
+DEVICE MAPPER REQUIREMENTS
+==========================
+
+_require_dm_target <name>
+
+ The test requires the use of the device mapper target and will be skipped
+ if it isn't available in the kernel.
+
+_require_log_writes
+
+ The test requires the use of the device mapper target log-writes.
+ The test also requires the test program log-writes/replay-log is built
+ and will be skipped if either isn't available.
+
+======================
+PERF TEST REQUIREMENTS
+======================
+
+_require_fio_results
+
+ This test requires the supporting tools for saving and comparing fio based
+ perf test results.