mpt_sleep
mpt_sleep(mpt, &mpt->request_free_list, 0, "mptgreq", 0);
error = mpt_sleep(mpt, req, 0, "mptreq", timeout);
mpt_sleep(mpt, &mpt->recovery_thread, 0, "thtrm", 0);
mpt_sleep(mpt, mpt, 0, "idle", 0);
mpt_sleep(mpt, &mpt->raid_thread, 0, "thtrm", 0);
mpt_sleep(mpt, &mpt->raid_volumes, 0, "idle", 0);