pcu_do_op
pcu_do_op(pcu, l, pcu_msg->flags);
pcu_do_op(pcu, l, flags);
pcu_do_op(pcu, oncpu_lwp, PCU_CMD_SAVE | PCU_CMD_RELEASE);
pcu_do_op(pcu, l, PCU_CMD_SAVE | PCU_CMD_RELEASE);
static inline void pcu_do_op(const pcu_ops_t *, lwp_t * const, const int);