kernel/sched/sched.h

1779 struct sched_class {  struct
1782 	int uclamp_enabled;
1785 	void (*enqueue_task) (struct rq *rq, struct task_struct *p, int flags);
1786 	void (*dequeue_task) (struct rq *rq, struct task_struct *p, int flags);
1787 	void (*yield_task)   (struct rq *rq);
1788 	bool (*yield_to_task)(struct rq *rq, struct task_struct *p);
1790 	void (*check_preempt_curr)(struct rq *rq, struct task_struct *p, int flags);
1792 	struct task_struct *(*pick_next_task)(struct rq *rq);
1794 	void (*put_prev_task)(struct rq *rq, struct task_struct *p);
1795 	void (*set_next_task)(struct rq *rq, struct task_struct *p, bool first);
1798 	int (*balance)(struct rq *rq, struct task_struct *prev, struct rq_flags *rf);
1799 	int  (*select_task_rq)(struct task_struct *p, int task_cpu, int sd_flag, int flags);
1800 	void (*migrate_task_rq)(struct task_struct *p, int new_cpu);
1802 	void (*task_woken)(struct rq *this_rq, struct task_struct *task);
1804 	void (*set_cpus_allowed)(struct task_struct *p,
1807 	void (*rq_online)(struct rq *rq);
1808 	void (*rq_offline)(struct rq *rq);
1811 	void (*task_tick)(struct rq *rq, struct task_struct *p, int queued);
1812 	void (*task_fork)(struct task_struct *p);
1813 	void (*task_dead)(struct task_struct *p);
1841 	prev->sched_class->put_prev_task(rq, prev);  in put_prev_task()  argument