select_task_rq
cpu = p->sched_class->select_task_rq(p, cpu, *wake_flags);
cpu = select_task_rq(p, p->wake_cpu, &wake_flags);
__set_task_cpu(p, select_task_rq(p, task_cpu(p), &wake_flags));
dest_cpu = p->sched_class->select_task_rq(p, task_cpu(p), WF_EXEC);
.select_task_rq = select_task_rq_dl,
.select_task_rq = select_task_rq_scx,
.select_task_rq = select_task_rq_fair,
.select_task_rq = select_task_rq_idle,
.select_task_rq = select_task_rq_rt,
int (*select_task_rq)(struct task_struct *p, int task_cpu, int flags);
.select_task_rq = select_task_rq_stop,