rcu_tasks_idx     714 include/linux/sched.h 	u8				rcu_tasks_idx;
rcu_tasks_idx     807 kernel/rcu/update.c 	current->rcu_tasks_idx = __srcu_read_lock(&tasks_rcu_exit_srcu);
rcu_tasks_idx     815 kernel/rcu/update.c 	__srcu_read_unlock(&tasks_rcu_exit_srcu, current->rcu_tasks_idx);