pi_top_task 952 include/linux/sched.h struct task_struct *pi_top_task; pi_top_task 38 include/linux/sched/rt.h return p->pi_top_task; pi_top_task 148 init/init_task.c .pi_top_task = NULL, pi_top_task 1638 kernel/fork.c p->pi_top_task = NULL; pi_top_task 4384 kernel/sched/core.c if (p->pi_top_task == pi_task && prio == p->prio && !dl_prio(prio)) pi_top_task 4399 kernel/sched/core.c p->pi_top_task = pi_task;