150 	struct rcu_node *rnp;  in rcu_iw_handler()  local
153 	rnp = rdp->mynode;  in rcu_iw_handler()
154 	raw_spin_lock_rcu_node(rnp);  in rcu_iw_handler()
156 		rdp->rcu_iw_gp_seq = rnp->gp_seq;  in rcu_iw_handler()
159 	raw_spin_unlock_rcu_node(rnp);  in rcu_iw_handler()
172 static void rcu_print_detail_task_stall_rnp(struct rcu_node *rnp)  in rcu_print_detail_task_stall_rnp()  argument
177 	raw_spin_lock_irqsave_rcu_node(rnp, flags);  in rcu_print_detail_task_stall_rnp()
178 	if (!rcu_preempt_blocked_readers_cgp(rnp)) {  in rcu_print_detail_task_stall_rnp()
179 		raw_spin_unlock_irqrestore_rcu_node(rnp, flags);  in rcu_print_detail_task_stall_rnp()
182 	t = list_entry(rnp->gp_tasks->prev,  in rcu_print_detail_task_stall_rnp()
184 	list_for_each_entry_continue(t, &rnp->blkd_tasks, rcu_node_entry) {  in rcu_print_detail_task_stall_rnp()
192 	raw_spin_unlock_irqrestore_rcu_node(rnp, flags);  in rcu_print_detail_task_stall_rnp()
199 static int rcu_print_task_stall(struct rcu_node *rnp)  in rcu_print_task_stall()  argument
204 	if (!rcu_preempt_blocked_readers_cgp(rnp))  in rcu_print_task_stall()
207 	       rnp->level, rnp->grplo, rnp->grphi);  in rcu_print_task_stall()
208 	t = list_entry(rnp->gp_tasks->prev,  in rcu_print_task_stall()
210 	list_for_each_entry_continue(t, &rnp->blkd_tasks, rcu_node_entry) {  in rcu_print_task_stall()
224 static void rcu_print_detail_task_stall_rnp(struct rcu_node *rnp)  in rcu_print_detail_task_stall_rnp()  argument
232 static int rcu_print_task_stall(struct rcu_node *rnp)  in rcu_print_task_stall()  argument
248 	struct rcu_node *rnp;  in rcu_dump_cpu_stacks()  local
250 	rcu_for_each_leaf_node(rnp) {  in rcu_dump_cpu_stacks()
251 		raw_spin_lock_irqsave_rcu_node(rnp, flags);  in rcu_dump_cpu_stacks()
252 		for_each_leaf_node_possible_cpu(rnp, cpu)  in rcu_dump_cpu_stacks()
253 			if (rnp->qsmask & leaf_node_cpu_bit(rnp, cpu))  in rcu_dump_cpu_stacks()
256 		raw_spin_unlock_irqrestore_rcu_node(rnp, flags);  in rcu_dump_cpu_stacks()
361 	struct rcu_node *rnp;  in print_other_cpu_stall()  local
375 	rcu_for_each_leaf_node(rnp) {  in print_other_cpu_stall()
376 		raw_spin_lock_irqsave_rcu_node(rnp, flags);  in print_other_cpu_stall()
377 		ndetected += rcu_print_task_stall(rnp);  in print_other_cpu_stall()
378 		if (rnp->qsmask != 0) {  in print_other_cpu_stall()
379 			for_each_leaf_node_possible_cpu(rnp, cpu)  in print_other_cpu_stall()
380 				if (rnp->qsmask & leaf_node_cpu_bit(rnp, cpu)) {  in print_other_cpu_stall()
385 		raw_spin_unlock_irqrestore_rcu_node(rnp, flags);  in print_other_cpu_stall()
397 		rcu_for_each_leaf_node(rnp)  in print_other_cpu_stall()
398 			rcu_print_detail_task_stall_rnp(rnp);  in print_other_cpu_stall()
430 	struct rcu_node *rnp = rcu_get_root();  in print_cpu_stall()  local
457 	raw_spin_lock_irqsave_rcu_node(rnp, flags);  in print_cpu_stall()
462 	raw_spin_unlock_irqrestore_rcu_node(rnp, flags);  in print_cpu_stall()
485 	struct rcu_node *rnp;  in check_cpu_stall()  local
522 	rnp = rdp->mynode;  in check_cpu_stall()
525 	    (READ_ONCE(rnp->qsmask) & rdp->grpmask) &&  in check_cpu_stall()
560 	struct rcu_node *rnp;  in show_rcu_gp_kthreads()  local
574 	rcu_for_each_node_breadth_first(rnp) {  in show_rcu_gp_kthreads()
575 		if (ULONG_CMP_GE(rcu_state.gp_seq, rnp->gp_seq_needed))  in show_rcu_gp_kthreads()
578 			rnp->grplo, rnp->grphi, (long)rnp->gp_seq,  in show_rcu_gp_kthreads()
579 			(long)rnp->gp_seq_needed);  in show_rcu_gp_kthreads()
580 		if (!rcu_is_leaf_node(rnp))  in show_rcu_gp_kthreads()
582 		for_each_leaf_node_possible_cpu(rnp, cpu) {  in show_rcu_gp_kthreads()
605 static void rcu_check_gp_start_stall(struct rcu_node *rnp, struct rcu_data *rdp,  in rcu_check_gp_start_stall()  argument
622 	raw_spin_lock_irqsave_rcu_node(rnp, flags);  in rcu_check_gp_start_stall()
629 		raw_spin_unlock_irqrestore_rcu_node(rnp, flags);  in rcu_check_gp_start_stall()
634 	if (rnp_root != rnp)  in rcu_check_gp_start_stall()
642 		if (rnp_root != rnp)  in rcu_check_gp_start_stall()
645 		raw_spin_unlock_irqrestore_rcu_node(rnp, flags);  in rcu_check_gp_start_stall()
649 	if (rnp_root != rnp)  in rcu_check_gp_start_stall()
651 	raw_spin_unlock_irqrestore_rcu_node(rnp, flags);  in rcu_check_gp_start_stall()