157 static void set_state(struct multi_stop_data *msdata,  in set_state()  argument
161 	atomic_set(&msdata->thread_ack, msdata->num_threads);  in set_state()
163 	msdata->state = newstate;  in set_state()
167 static void ack_state(struct multi_stop_data *msdata)  in ack_state()  argument
169 	if (atomic_dec_and_test(&msdata->thread_ack))  in ack_state()
170 		set_state(msdata, msdata->state + 1);  in ack_state()
176 	struct multi_stop_data *msdata = data;  in multi_cpu_stop()  local
188 	if (!msdata->active_cpus)  in multi_cpu_stop()
191 		is_active = cpumask_test_cpu(cpu, msdata->active_cpus);  in multi_cpu_stop()
197 		if (msdata->state != curstate) {  in multi_cpu_stop()
198 			curstate = msdata->state;  in multi_cpu_stop()
206 					err = msdata->fn(msdata->data);  in multi_cpu_stop()
211 			ack_state(msdata);  in multi_cpu_stop()
259 	struct multi_stop_data msdata;  in stop_two_cpus()  local
262 	msdata = (struct multi_stop_data){  in stop_two_cpus()
271 		.arg = &msdata,  in stop_two_cpus()
276 	set_state(&msdata, MULTI_STOP_PREPARE);  in stop_two_cpus()
538 	struct multi_stop_data msdata = {  in __stop_machine()  local
554 		WARN_ON_ONCE(msdata.num_threads != 1);  in __stop_machine()
565 	set_state(&msdata, MULTI_STOP_PREPARE);  in __stop_machine()
566 	return stop_cpus(cpu_online_mask, multi_cpu_stop, &msdata);  in __stop_machine()
606 	struct multi_stop_data msdata = { .fn = fn, .data = data,  in stop_machine_from_inactive_cpu()  local
613 	msdata.num_threads = num_active_cpus() + 1;	/* +1 for local */  in stop_machine_from_inactive_cpu()
620 	set_state(&msdata, MULTI_STOP_PREPARE);  in stop_machine_from_inactive_cpu()
622 	queue_stop_cpus_work(cpu_active_mask, multi_cpu_stop, &msdata,  in stop_machine_from_inactive_cpu()
624 	ret = multi_cpu_stop(&msdata);  in stop_machine_from_inactive_cpu()