LS_RW_ENTER_BLOCK
{ LS_RW_ENTER, LSR_BLOCK, LS_RW_ENTER_BLOCK },
LOCKSTAT_RECORD4(LS_RW_ENTER_BLOCK, lp, sleep_time, rw,
LOCKSTAT_RECORD4(LS_RW_ENTER_BLOCK, l, sleep_time, rw,
LOCKSTAT_RECORD4(LS_RW_ENTER_BLOCK, l, sleep_time, rw,