_lockmgr_args_rw
_lockmgr_args_rw(&(bp)->b_lock, (locktype), (interlock), \
_lockmgr_args_rw(&(bp)->b_lock, (locktype) | LK_TIMELOCK, \
_lockmgr_args_rw((lk), (flags), (ilk), (wmesg), (prio), (timo), \
_lockmgr_args_rw((lk), (flags), (ilk), LK_WMESG_DEFAULT, \