501 static inline unsigned int timer_get_idx(struct timer_list *timer)  in timer_get_idx()  argument
503 	return (timer->flags & TIMER_ARRAYMASK) >> TIMER_ARRAYSHIFT;  in timer_get_idx()
506 static inline void timer_set_idx(struct timer_list *timer, unsigned int idx)  in timer_set_idx()  argument
508 	timer->flags = (timer->flags & ~TIMER_ARRAYMASK) |  in timer_set_idx()
572 trigger_dyntick_cpu(struct timer_base *base, struct timer_list *timer)  in trigger_dyntick_cpu()  argument
581 	if (timer->flags & TIMER_DEFERRABLE) {  in trigger_dyntick_cpu()
601 static void enqueue_timer(struct timer_base *base, struct timer_list *timer,  in enqueue_timer()  argument
605 	hlist_add_head(&timer->entry, base->vectors + idx);  in enqueue_timer()
607 	timer_set_idx(timer, idx);  in enqueue_timer()
609 	trace_timer_start(timer, timer->expires, timer->flags);  in enqueue_timer()
624 		trigger_dyntick_cpu(base, timer);  in enqueue_timer()
628 static void internal_add_timer(struct timer_base *base, struct timer_list *timer)  in internal_add_timer()  argument
633 	idx = calc_wheel_index(timer->expires, base->clk, &bucket_expiry);  in internal_add_timer()
634 	enqueue_timer(base, timer, idx, bucket_expiry);  in internal_add_timer()
655 		   struct delayed_work, timer, work.func),
657 		   struct kthread_delayed_work, timer, work.func),
662 	struct timer_list *timer = addr;  in timer_debug_hint()  local
666 		if (timer_hints[i].function == timer->function) {  in timer_debug_hint()
673 	return timer->function;  in timer_debug_hint()
678 	struct timer_list *timer = addr;  in timer_is_static_object()  local
680 	return (timer->entry.pprev == NULL &&  in timer_is_static_object()
681 		timer->entry.next == TIMER_ENTRY_STATIC);  in timer_is_static_object()
690 	struct timer_list *timer = addr;  in timer_fixup_init()  local
694 		del_timer_sync(timer);  in timer_fixup_init()
695 		debug_object_init(timer, &timer_debug_descr);  in timer_fixup_init()
715 	struct timer_list *timer = addr;  in timer_fixup_activate()  local
719 		timer_setup(timer, stub_timer, 0);  in timer_fixup_activate()
736 	struct timer_list *timer = addr;  in timer_fixup_free()  local
740 		del_timer_sync(timer);  in timer_fixup_free()
741 		debug_object_free(timer, &timer_debug_descr);  in timer_fixup_free()
754 	struct timer_list *timer = addr;  in timer_fixup_assert_init()  local
758 		timer_setup(timer, stub_timer, 0);  in timer_fixup_assert_init()
775 static inline void debug_timer_init(struct timer_list *timer)  in debug_timer_init()  argument
777 	debug_object_init(timer, &timer_debug_descr);  in debug_timer_init()
780 static inline void debug_timer_activate(struct timer_list *timer)  in debug_timer_activate()  argument
782 	debug_object_activate(timer, &timer_debug_descr);  in debug_timer_activate()
785 static inline void debug_timer_deactivate(struct timer_list *timer)  in debug_timer_deactivate()  argument
787 	debug_object_deactivate(timer, &timer_debug_descr);  in debug_timer_deactivate()
790 static inline void debug_timer_assert_init(struct timer_list *timer)  in debug_timer_assert_init()  argument
792 	debug_object_assert_init(timer, &timer_debug_descr);  in debug_timer_assert_init()
795 static void do_init_timer(struct timer_list *timer,
800 void init_timer_on_stack_key(struct timer_list *timer,  in init_timer_on_stack_key()  argument
805 	debug_object_init_on_stack(timer, &timer_debug_descr);  in init_timer_on_stack_key()
806 	do_init_timer(timer, func, flags, name, key);  in init_timer_on_stack_key()
810 void destroy_timer_on_stack(struct timer_list *timer)  in destroy_timer_on_stack()  argument
812 	debug_object_free(timer, &timer_debug_descr);  in destroy_timer_on_stack()
817 static inline void debug_timer_init(struct timer_list *timer) { }  in debug_timer_init()  argument
818 static inline void debug_timer_activate(struct timer_list *timer) { }  in debug_timer_activate()  argument
819 static inline void debug_timer_deactivate(struct timer_list *timer) { }  in debug_timer_deactivate()  argument
820 static inline void debug_timer_assert_init(struct timer_list *timer) { }  in debug_timer_assert_init()  argument
823 static inline void debug_init(struct timer_list *timer)  in debug_init()  argument
825 	debug_timer_init(timer);  in debug_init()
826 	trace_timer_init(timer);  in debug_init()
829 static inline void debug_deactivate(struct timer_list *timer)  in debug_deactivate()  argument
831 	debug_timer_deactivate(timer);  in debug_deactivate()
832 	trace_timer_cancel(timer);  in debug_deactivate()
835 static inline void debug_assert_init(struct timer_list *timer)  in debug_assert_init()  argument
837 	debug_timer_assert_init(timer);  in debug_assert_init()
840 static void do_init_timer(struct timer_list *timer,  in do_init_timer()  argument
845 	timer->entry.pprev = NULL;  in do_init_timer()
846 	timer->function = func;  in do_init_timer()
849 	timer->flags = flags | raw_smp_processor_id();  in do_init_timer()
850 	lockdep_init_map(&timer->lockdep_map, name, key, 0);  in do_init_timer()
865 void init_timer_key(struct timer_list *timer,  in init_timer_key()  argument
869 	debug_init(timer);  in init_timer_key()
870 	do_init_timer(timer, func, flags, name, key);  in init_timer_key()
874 static inline void detach_timer(struct timer_list *timer, bool clear_pending)  in detach_timer()  argument
876 	struct hlist_node *entry = &timer->entry;  in detach_timer()
878 	debug_deactivate(timer);  in detach_timer()
886 static int detach_if_pending(struct timer_list *timer, struct timer_base *base,  in detach_if_pending()  argument
889 	unsigned idx = timer_get_idx(timer);  in detach_if_pending()
891 	if (!timer_pending(timer))  in detach_if_pending()
894 	if (hlist_is_singular_node(&timer->entry, base->vectors + idx)) {  in detach_if_pending()
899 	detach_timer(timer, clear_pending);  in detach_if_pending()
982 static struct timer_base *lock_timer_base(struct timer_list *timer,  in lock_timer_base()  argument
984 	__acquires(timer->base->lock)  in lock_timer_base()
995 		tf = READ_ONCE(timer->flags);  in lock_timer_base()
1000 			if (timer->flags == tf)  in lock_timer_base()
1013 __mod_timer(struct timer_list *timer, unsigned long expires, unsigned int options)  in __mod_timer()  argument
1020 	debug_assert_init(timer);  in __mod_timer()
1027 	if (!(options & MOD_TIMER_NOTPENDING) && timer_pending(timer)) {  in __mod_timer()
1033 		long diff = timer->expires - expires;  in __mod_timer()
1046 		base = lock_timer_base(timer, &flags);  in __mod_timer()
1052 		if (!timer->function)  in __mod_timer()
1057 		if (timer_pending(timer) && (options & MOD_TIMER_REDUCE) &&  in __mod_timer()
1058 		    time_before_eq(timer->expires, expires)) {  in __mod_timer()
1071 		if (idx == timer_get_idx(timer)) {  in __mod_timer()
1073 				timer->expires = expires;  in __mod_timer()
1074 			else if (time_after(timer->expires, expires))  in __mod_timer()
1075 				timer->expires = expires;  in __mod_timer()
1080 		base = lock_timer_base(timer, &flags);  in __mod_timer()
1086 		if (!timer->function)  in __mod_timer()
1092 	ret = detach_if_pending(timer, base, false);  in __mod_timer()
1096 	new_base = get_target_base(base, timer->flags);  in __mod_timer()
1106 		if (likely(base->running_timer != timer)) {  in __mod_timer()
1108 			timer->flags |= TIMER_MIGRATING;  in __mod_timer()
1113 			WRITE_ONCE(timer->flags,  in __mod_timer()
1114 				   (timer->flags & ~TIMER_BASEMASK) | base->cpu);  in __mod_timer()
1119 	debug_timer_activate(timer);  in __mod_timer()
1121 	timer->expires = expires;  in __mod_timer()
1129 		enqueue_timer(base, timer, idx, bucket_expiry);  in __mod_timer()
1131 		internal_add_timer(base, timer);  in __mod_timer()
1155 int mod_timer_pending(struct timer_list *timer, unsigned long expires)  in mod_timer_pending()  argument
1157 	return __mod_timer(timer, expires, MOD_TIMER_PENDING_ONLY);  in mod_timer_pending()
1188 int mod_timer(struct timer_list *timer, unsigned long expires)  in mod_timer()  argument
1190 	return __mod_timer(timer, expires, 0);  in mod_timer()
1214 int timer_reduce(struct timer_list *timer, unsigned long expires)  in timer_reduce()  argument
1216 	return __mod_timer(timer, expires, MOD_TIMER_REDUCE);  in timer_reduce()
1240 void add_timer(struct timer_list *timer)  in add_timer()  argument
1242 	if (WARN_ON_ONCE(timer_pending(timer)))  in add_timer()
1244 	__mod_timer(timer, timer->expires, MOD_TIMER_NOTPENDING);  in add_timer()
1257 void add_timer_on(struct timer_list *timer, int cpu)  in add_timer_on()  argument
1262 	debug_assert_init(timer);  in add_timer_on()
1264 	if (WARN_ON_ONCE(timer_pending(timer)))  in add_timer_on()
1267 	new_base = get_timer_cpu_base(timer->flags, cpu);  in add_timer_on()
1274 	base = lock_timer_base(timer, &flags);  in add_timer_on()
1279 	if (!timer->function)  in add_timer_on()
1283 		timer->flags |= TIMER_MIGRATING;  in add_timer_on()
1288 		WRITE_ONCE(timer->flags,  in add_timer_on()
1289 			   (timer->flags & ~TIMER_BASEMASK) | cpu);  in add_timer_on()
1293 	debug_timer_activate(timer);  in add_timer_on()
1294 	internal_add_timer(base, timer);  in add_timer_on()
1315 static int __timer_delete(struct timer_list *timer, bool shutdown)  in __timer_delete()  argument
1321 	debug_assert_init(timer);  in __timer_delete()
1334 	if (timer_pending(timer) || shutdown) {  in __timer_delete()
1335 		base = lock_timer_base(timer, &flags);  in __timer_delete()
1336 		ret = detach_if_pending(timer, base, true);  in __timer_delete()
1338 			timer->function = NULL;  in __timer_delete()
1359 int timer_delete(struct timer_list *timer)  in timer_delete()  argument
1361 	return __timer_delete(timer, false);  in timer_delete()
1380 int timer_shutdown(struct timer_list *timer)  in timer_shutdown()  argument
1382 	return __timer_delete(timer, true);  in timer_shutdown()
1406 static int __try_to_del_timer_sync(struct timer_list *timer, bool shutdown)  in __try_to_del_timer_sync()  argument
1412 	debug_assert_init(timer);  in __try_to_del_timer_sync()
1414 	base = lock_timer_base(timer, &flags);  in __try_to_del_timer_sync()
1416 	if (base->running_timer != timer)  in __try_to_del_timer_sync()
1417 		ret = detach_if_pending(timer, base, true);  in __try_to_del_timer_sync()
1419 		timer->function = NULL;  in __try_to_del_timer_sync()
1442 int try_to_del_timer_sync(struct timer_list *timer)  in try_to_del_timer_sync()  argument
1444 	return __try_to_del_timer_sync(timer, false);  in try_to_del_timer_sync()
1491 static void del_timer_wait_running(struct timer_list *timer)  in del_timer_wait_running()  argument
1495 	tf = READ_ONCE(timer->flags);  in del_timer_wait_running()
1518 static inline void del_timer_wait_running(struct timer_list *timer) { }  in del_timer_wait_running()  argument
1543 static int __timer_delete_sync(struct timer_list *timer, bool shutdown)  in __timer_delete_sync()  argument
1555 	lock_map_acquire(&timer->lockdep_map);  in __timer_delete_sync()
1556 	lock_map_release(&timer->lockdep_map);  in __timer_delete_sync()
1563 	WARN_ON(in_hardirq() && !(timer->flags & TIMER_IRQSAFE));  in __timer_delete_sync()
1569 	if (IS_ENABLED(CONFIG_PREEMPT_RT) && !(timer->flags & TIMER_IRQSAFE))  in __timer_delete_sync()
1573 		ret = __try_to_del_timer_sync(timer, shutdown);  in __timer_delete_sync()
1576 			del_timer_wait_running(timer);  in __timer_delete_sync()
1626 int timer_delete_sync(struct timer_list *timer)  in timer_delete_sync()  argument
1628 	return __timer_delete_sync(timer, false);  in timer_delete_sync()
1668 int timer_shutdown_sync(struct timer_list *timer)  in timer_shutdown_sync()  argument
1670 	return __timer_delete_sync(timer, true);  in timer_shutdown_sync()
1674 static void call_timer_fn(struct timer_list *timer,  in call_timer_fn()  argument
1690 	lockdep_copy_map(&lockdep_map, &timer->lockdep_map);  in call_timer_fn()
1699 	trace_timer_expire_entry(timer, baseclk);  in call_timer_fn()
1700 	fn(timer);  in call_timer_fn()
1701 	trace_timer_expire_exit(timer);  in call_timer_fn()
1728 		struct timer_list *timer;  in expire_timers()  local
1731 		timer = hlist_entry(head->first, struct timer_list, entry);  in expire_timers()
1733 		base->running_timer = timer;  in expire_timers()
1734 		detach_timer(timer, true);  in expire_timers()
1736 		fn = timer->function;  in expire_timers()
1744 		if (timer->flags & TIMER_IRQSAFE) {  in expire_timers()
1746 			call_timer_fn(timer, fn, baseclk);  in expire_timers()
1751 			call_timer_fn(timer, fn, baseclk);  in expire_timers()
2086 	struct timer_list timer;  member
2092 	struct process_timer *timeout = from_timer(timeout, t, timer);  in process_timeout()
2130 	struct process_timer timer;  in schedule_timeout()  local
2164 	timer.task = current;  in schedule_timeout()
2165 	timer_setup_on_stack(&timer.timer, process_timeout, 0);  in schedule_timeout()
2166 	__mod_timer(&timer.timer, expire, MOD_TIMER_NOTPENDING);  in schedule_timeout()
2168 	del_timer_sync(&timer.timer);  in schedule_timeout()
2171 	destroy_timer_on_stack(&timer.timer);  in schedule_timeout()
2219 	struct timer_list *timer;  in migrate_timer_list()  local
2223 		timer = hlist_entry(head->first, struct timer_list, entry);  in migrate_timer_list()
2224 		detach_timer(timer, false);  in migrate_timer_list()
2225 		timer->flags = (timer->flags & ~TIMER_BASEMASK) | cpu;  in migrate_timer_list()
2226 		internal_add_timer(new_base, timer);  in migrate_timer_list()