_deallocate_dev
if (_deallocate_dev(dealloc_optflag, da, dm, uid,
error = _deallocate_dev(optflag, da, NULL, uid,
error = _deallocate_dev(optflag, da, NULL, uid,
error = _deallocate_dev(optflag, da, NULL, uid,
error = _deallocate_dev(optflag, da, NULL, uid, zonename,