stop_sched_class
在内核中有什么用?在pick_next_task
函数中,调度程序将从第一个任务中选择下一个任务stop_sched_class
。sched_class
我为内核删除这个有什么问题吗?
#define for_each_class(class) \
for (class = sched_class_highest; class; class = class->next)
#define sched_class_highest (&stop_sched_class)
extern const struct sched_class stop_sched_class;
/*
* Simple, special scheduling class for the per-CPU stop tasks:
*/
const struct sched_class stop_sched_class = {
.next = &rt_sched_class,
.enqueue_task = enqueue_task_stop,
.dequeue_task = dequeue_task_stop,
.yield_task = yield_task_stop,
.check_preempt_curr = check_preempt_curr_stop,
.pick_next_task = pick_next_task_stop,
.put_prev_task = put_prev_task_stop,
#ifdef CONFIG_SMP
.select_task_rq = select_task_rq_stop,
#endif
.set_curr_task = set_curr_task_stop,
.task_tick = task_tick_stop,
.get_rr_interval = get_rr_interval_stop,
.prio_changed = prio_changed_stop,
.switched_to = switched_to_stop,
};