136 pub enum SchedPolicy {  enum
412             SchedPolicy::CFS => CompletelyFairScheduler::enqueue(self, pcb, flags),  in enqueue_task()
413             SchedPolicy::FIFO => todo!(),  in enqueue_task()
414             SchedPolicy::RT => todo!(),  in enqueue_task()
415             SchedPolicy::IDLE => IdleScheduler::enqueue(self, pcb, flags),  in enqueue_task()
443             SchedPolicy::CFS => CompletelyFairScheduler::dequeue(self, pcb, flags),  in dequeue_task()
444             SchedPolicy::FIFO => todo!(),  in dequeue_task()
445             SchedPolicy::RT => todo!(),  in dequeue_task()
446             SchedPolicy::IDLE => IdleScheduler::dequeue(self, pcb, flags),  in dequeue_task()
470                 SchedPolicy::CFS => {  in check_preempt_currnet()
473                 SchedPolicy::FIFO => todo!(),  in check_preempt_currnet()
474                 SchedPolicy::RT => todo!(),  in check_preempt_currnet()
475                 SchedPolicy::IDLE => IdleScheduler::check_preempt_currnet(self, pcb, flags),  in check_preempt_currnet()
661         if likely(prev.sched_info().policy() >= SchedPolicy::CFS)  in pick_next_task()
678                     SchedPolicy::FIFO => todo!(),  in pick_next_task()
679                     SchedPolicy::RT => todo!(),  in pick_next_task()
680                     SchedPolicy::CFS => CompletelyFairScheduler::put_prev_task(self, prev),  in pick_next_task()
681                     SchedPolicy::IDLE => IdleScheduler::put_prev_task(self, prev),  in pick_next_task()
806         SchedPolicy::CFS => CompletelyFairScheduler::tick(rq, current, false),  in scheduler_tick()
807         SchedPolicy::FIFO => todo!(),  in scheduler_tick()
808         SchedPolicy::RT => todo!(),  in scheduler_tick()
809         SchedPolicy::IDLE => IdleScheduler::tick(rq, current, false),  in scheduler_tick()
874         && prev.sched_info().policy() != SchedPolicy::IDLE  in __schedule()
946         *policy.write_irqsave() = SchedPolicy::RT;  in sched_fork()
949         *policy.write_irqsave() = SchedPolicy::CFS;  in sched_fork()
963         SchedPolicy::RT => todo!(),  in sched_cgroup_fork()
964         SchedPolicy::FIFO => todo!(),  in sched_cgroup_fork()
965         SchedPolicy::CFS => CompletelyFairScheduler::task_fork(pcb.clone()),  in sched_cgroup_fork()
966         SchedPolicy::IDLE => todo!(),  in sched_cgroup_fork()