339 	int cpu;  in rcu_dump_cpu_stacks()  local
345 		for_each_leaf_node_possible_cpu(rnp, cpu)  in rcu_dump_cpu_stacks()
346 			if (rnp->qsmask & leaf_node_cpu_bit(rnp, cpu)) {  in rcu_dump_cpu_stacks()
347 				if (cpu_is_offline(cpu))  in rcu_dump_cpu_stacks()
348 					pr_err("Offline CPU %d blocking current GP.\n", cpu);  in rcu_dump_cpu_stacks()
349 				else if (!trigger_single_cpu_backtrace(cpu))  in rcu_dump_cpu_stacks()
350 					dump_cpu_task(cpu);  in rcu_dump_cpu_stacks()
358 static void print_cpu_stall_fast_no_hz(char *cp, int cpu)  in print_cpu_stall_fast_no_hz()  argument
360 	struct rcu_data *rdp = per_cpu_ptr(&rcu_data, cpu);  in print_cpu_stall_fast_no_hz()
369 static void print_cpu_stall_fast_no_hz(char *cp, int cpu)  in print_cpu_stall_fast_no_hz()  argument
419 static void print_cpu_stall_info(int cpu)  in print_cpu_stall_info()  argument
424 	struct rcu_data *rdp = per_cpu_ptr(&rcu_data, cpu);  in print_cpu_stall_info()
441 	print_cpu_stall_fast_no_hz(fast_no_hz, cpu);  in print_cpu_stall_info()
446 	       cpu,  in print_cpu_stall_info()
447 	       "O."[!!cpu_online(cpu)],  in print_cpu_stall_info()
456 	       rdp->softirq_snap, kstat_softirqs_cpu(RCU_SOFTIRQ, cpu),  in print_cpu_stall_info()
465 	int cpu;  in rcu_check_gp_kthread_starvation()  local
470 		cpu = gpk ? task_cpu(gpk) : -1;  in rcu_check_gp_kthread_starvation()
477 		       gpk ? data_race(READ_ONCE(gpk->__state)) : ~0, cpu);  in rcu_check_gp_kthread_starvation()
482 			if (cpu >= 0) {  in rcu_check_gp_kthread_starvation()
483 				if (cpu_is_offline(cpu)) {  in rcu_check_gp_kthread_starvation()
484 					pr_err("RCU GP kthread last ran on offline CPU %d.\n", cpu);  in rcu_check_gp_kthread_starvation()
487 					if (!trigger_single_cpu_backtrace(cpu))  in rcu_check_gp_kthread_starvation()
488 						dump_cpu_task(cpu);  in rcu_check_gp_kthread_starvation()
502 	int cpu;  in rcu_check_gp_kthread_expired_fqs_timer()  local
514 		cpu = task_cpu(gpk);  in rcu_check_gp_kthread_expired_fqs_timer()
522 		       cpu, kstat_softirqs_cpu(TIMER_SOFTIRQ, cpu));  in rcu_check_gp_kthread_expired_fqs_timer()
528 	int cpu;  in print_other_cpu_stall()  local
553 			for_each_leaf_node_possible_cpu(rnp, cpu)  in print_other_cpu_stall()
554 				if (rnp->qsmask & leaf_node_cpu_bit(rnp, cpu)) {  in print_other_cpu_stall()
555 					print_cpu_stall_info(cpu);  in print_other_cpu_stall()
563 	for_each_possible_cpu(cpu)  in print_other_cpu_stall()
564 		totqlen += rcu_get_n_cbs_cpu(cpu);  in print_other_cpu_stall()
601 	int cpu;  in print_cpu_stall()  local
624 	for_each_possible_cpu(cpu)  in print_cpu_stall()
625 		totqlen += rcu_get_n_cbs_cpu(cpu);  in print_cpu_stall()
780 	int cpu;  in rcu_check_boost_fail()  local
804 		for_each_leaf_node_possible_cpu(rnp, cpu) {  in rcu_check_boost_fail()
805 			if (rnp->qsmask & (1UL << (cpu - rnp->grplo))) {  in rcu_check_boost_fail()
807 				*cpup = cpu;  in rcu_check_boost_fail()
824 	int cpu;  in show_rcu_gp_kthreads()  local
865 		for_each_leaf_node_possible_cpu(rnp, cpu) {  in show_rcu_gp_kthreads()
866 			rdp = per_cpu_ptr(&rcu_data, cpu);  in show_rcu_gp_kthreads()
872 				cpu, (long)data_race(READ_ONCE(rdp->gp_seq_needed)));  in show_rcu_gp_kthreads()
875 	for_each_possible_cpu(cpu) {  in show_rcu_gp_kthreads()
876 		rdp = per_cpu_ptr(&rcu_data, cpu);  in show_rcu_gp_kthreads()
952 	int cpu;  in rcu_fwd_progress_check()  local
969 	for_each_possible_cpu(cpu) {  in rcu_fwd_progress_check()
970 		cbs = rcu_get_n_cbs_cpu(cpu);  in rcu_fwd_progress_check()
975 		pr_cont(" %d: %lu", cpu, cbs);  in rcu_fwd_progress_check()
979 		max_cpu = cpu;  in rcu_fwd_progress_check()