LCB_F_WRITE
{ LCB_F_WRITE, "WRITE" },
trace_contention_begin(sem, LCB_F_PERCPU | LCB_F_WRITE);
trace_contention_begin(lock, LCB_F_SPIN | LCB_F_WRITE);
trace_contention_begin(rwb, LCB_F_RT | LCB_F_WRITE);
trace_contention_begin(sem, LCB_F_WRITE);
{ LCB_F_SPIN | LCB_F_WRITE, "rwlock:W", "rwlock" },
{ LCB_F_WRITE, "rwsem:W", "rwsem" },
{ LCB_F_RT | LCB_F_WRITE, "rwlock-rt:W", "rwlock-rt" },
{ LCB_F_PERCPU | LCB_F_WRITE, "pcpu-sem:W", "percpu-rwsem" },
} else if (flags == LCB_F_READ || flags == LCB_F_WRITE) {
case LCB_F_WRITE: