66 	bool			single;  member
118 		int		(*single)(unsigned int cpu);  member
123 		int		(*single)(unsigned int cpu);  member
163 		if (!(bringup ? step->startup.single : step->teardown.single))  in cpuhp_invoke_callback()
171 		cb = bringup ? step->startup.single : step->teardown.single;  in cpuhp_invoke_callback()
464 	st->single = false;  in cpuhp_set_state()
493 	if (!st->single && st->state == st->target)  in __cpuhp_kick_ap()
684 	if (st->single) {  in cpuhp_thread_fun()
763 	st->single = true;  in cpuhp_invoke_ap_callback()
1471 		.startup.single		= NULL,
1472 		.teardown.single	= NULL,
1477 		.startup.single		= smpboot_create_threads,
1478 		.teardown.single	= NULL,
1483 		.startup.single		= random_and_perf_prepare_fusion,
1484 		.teardown.single	= perf_event_exit_cpu,
1488 		.startup.single		= workqueue_prepare_cpu,
1489 		.teardown.single	= NULL,
1493 		.startup.single		= hrtimers_prepare_cpu,
1494 		.teardown.single	= hrtimers_dead_cpu,
1498 		.startup.single		= smpcfd_prepare_cpu,
1499 		.teardown.single	= smpcfd_dead_cpu,
1503 		.startup.single		= relay_prepare_cpu,
1504 		.teardown.single	= NULL,
1508 		.startup.single		= slab_prepare_cpu,
1509 		.teardown.single	= slab_dead_cpu,
1513 		.startup.single		= rcutree_prepare_cpu,
1514 		.teardown.single	= rcutree_dead_cpu,
1523 		.startup.single		= timers_prepare_cpu,
1524 		.teardown.single	= timers_dead_cpu,
1529 		.startup.single		= bringup_cpu,
1530 		.teardown.single	= finish_cpu,
1548 		.startup.single		= sched_cpu_starting,
1549 		.teardown.single	= sched_cpu_dying,
1553 		.startup.single		= NULL,
1554 		.teardown.single	= rcutree_dying_cpu,
1558 		.startup.single		= NULL,
1559 		.teardown.single	= smpcfd_dying_cpu,
1572 		.startup.single		= NULL,
1573 		.teardown.single	= takedown_cpu,
1579 		.startup.single		= smpboot_unpark_threads,
1580 		.teardown.single	= smpboot_park_threads,
1584 		.startup.single		= irq_affinity_online_cpu,
1585 		.teardown.single	= NULL,
1589 		.startup.single		= perf_event_init_cpu,
1590 		.teardown.single	= perf_event_exit_cpu,
1594 		.startup.single		= lockup_detector_online_cpu,
1595 		.teardown.single	= lockup_detector_offline_cpu,
1599 		.startup.single		= random_and_workqueue_online_fusion,
1600 		.teardown.single	= workqueue_offline_cpu,
1604 		.startup.single		= rcutree_online_cpu,
1605 		.teardown.single	= rcutree_offline_cpu,
1616 		.startup.single		= sched_cpu_activate,
1617 		.teardown.single	= sched_cpu_deactivate,
1624 		.startup.single		= NULL,
1625 		.teardown.single	= NULL,
1697 	sp->startup.single = startup;  in cpuhp_store_callbacks()
1698 	sp->teardown.single = teardown;  in cpuhp_store_callbacks()
1707 	return cpuhp_get_step(state)->teardown.single;  in cpuhp_get_teardown_cb()
1724 	if ((bringup && !sp->startup.single) ||  in cpuhp_issue_call()
1725 	    (!bringup && !sp->teardown.single))  in cpuhp_issue_call()
2168 	if (!sp->startup.single && !sp->teardown.single)  in write_cpuhp_fail()