CFS调度器的实现代码

• /*
  
•  * All the scheduling class methods:
  
•  */
  
• static const struct sched_class fair_sched_class = {
  
•     .next            = &idle_sched_class,
  
•     .enqueue_task        = enqueue_task_fair,
  
•     .dequeue_task        = dequeue_task_fair,
  
•     .yield_task        = yield_task_fair,
  
• 
  
•     .check_preempt_curr    = check_preempt_wakeup,
  
• 
  
•     .pick_next_task        = pick_next_task_fair,
  
•     .put_prev_task        = put_prev_task_fair,
  
• 
  
• #ifdef CONFIG_SMP
  
•     .select_task_rq        = select_task_rq_fair,
  
• 
  
•     .rq_online        = rq_online_fair,
  
•     .rq_offline        = rq_offline_fair,
  
• 
  
•     .task_waking        = task_waking_fair,
  
• #endif
  
• 
  
•     .set_curr_task = set_curr_task_fair,
  
•     .task_tick        = task_tick_fair,
  
•     .task_fork        = task_fork_fair,
  
• 
  
•     .prio_changed        = prio_changed_fair,
  
•     .switched_to        = switched_to_fair,
  
• 
  
•     .get_rr_interval    = get_rr_interval_fair,
  
• 
  
• #ifdef CONFIG_FAIR_GROUP_SCHED
  
•     .moved_group        = moved_group_fair,
  
• #endif
  
• }