473 static inline unsigned int timer_get_idx(struct timer_list *timer)  in timer_get_idx()  argument
475 	return (timer->flags & TIMER_ARRAYMASK) >> TIMER_ARRAYSHIFT;  in timer_get_idx()
478 static inline void timer_set_idx(struct timer_list *timer, unsigned int idx)  in timer_set_idx()  argument
480 	timer->flags = (timer->flags & ~TIMER_ARRAYMASK) |  in timer_set_idx()
534 static void enqueue_timer(struct timer_base *base, struct timer_list *timer,  in enqueue_timer()  argument
537 	hlist_add_head(&timer->entry, base->vectors + idx);  in enqueue_timer()
539 	timer_set_idx(timer, idx);  in enqueue_timer()
543 __internal_add_timer(struct timer_base *base, struct timer_list *timer)  in __internal_add_timer()  argument
547 	idx = calc_wheel_index(timer->expires, base->clk);  in __internal_add_timer()
548 	enqueue_timer(base, timer, idx);  in __internal_add_timer()
552 trigger_dyntick_cpu(struct timer_base *base, struct timer_list *timer)  in trigger_dyntick_cpu()  argument
561 	if (timer->flags & TIMER_DEFERRABLE) {  in trigger_dyntick_cpu()
576 	if (time_after_eq(timer->expires, base->next_expiry))  in trigger_dyntick_cpu()
583 	base->next_expiry = timer->expires;  in trigger_dyntick_cpu()
588 internal_add_timer(struct timer_base *base, struct timer_list *timer)  in internal_add_timer()  argument
590 	__internal_add_timer(base, timer);  in internal_add_timer()
591 	trigger_dyntick_cpu(base, timer);  in internal_add_timer()
605 	struct timer_list *timer = addr;  in timer_is_static_object()  local
607 	return (timer->entry.pprev == NULL &&  in timer_is_static_object()
608 		timer->entry.next == TIMER_ENTRY_STATIC);  in timer_is_static_object()
617 	struct timer_list *timer = addr;  in timer_fixup_init()  local
621 		del_timer_sync(timer);  in timer_fixup_init()
622 		debug_object_init(timer, &timer_debug_descr);  in timer_fixup_init()
642 	struct timer_list *timer = addr;  in timer_fixup_activate()  local
646 		timer_setup(timer, stub_timer, 0);  in timer_fixup_activate()
663 	struct timer_list *timer = addr;  in timer_fixup_free()  local
667 		del_timer_sync(timer);  in timer_fixup_free()
668 		debug_object_free(timer, &timer_debug_descr);  in timer_fixup_free()
681 	struct timer_list *timer = addr;  in timer_fixup_assert_init()  local
685 		timer_setup(timer, stub_timer, 0);  in timer_fixup_assert_init()
702 static inline void debug_timer_init(struct timer_list *timer)  in debug_timer_init()  argument
704 	debug_object_init(timer, &timer_debug_descr);  in debug_timer_init()
707 static inline void debug_timer_activate(struct timer_list *timer)  in debug_timer_activate()  argument
709 	debug_object_activate(timer, &timer_debug_descr);  in debug_timer_activate()
712 static inline void debug_timer_deactivate(struct timer_list *timer)  in debug_timer_deactivate()  argument
714 	debug_object_deactivate(timer, &timer_debug_descr);  in debug_timer_deactivate()
717 static inline void debug_timer_free(struct timer_list *timer)  in debug_timer_free()  argument
719 	debug_object_free(timer, &timer_debug_descr);  in debug_timer_free()
722 static inline void debug_timer_assert_init(struct timer_list *timer)  in debug_timer_assert_init()  argument
724 	debug_object_assert_init(timer, &timer_debug_descr);  in debug_timer_assert_init()
727 static void do_init_timer(struct timer_list *timer,
732 void init_timer_on_stack_key(struct timer_list *timer,  in init_timer_on_stack_key()  argument
737 	debug_object_init_on_stack(timer, &timer_debug_descr);  in init_timer_on_stack_key()
738 	do_init_timer(timer, func, flags, name, key);  in init_timer_on_stack_key()
742 void destroy_timer_on_stack(struct timer_list *timer)  in destroy_timer_on_stack()  argument
744 	debug_object_free(timer, &timer_debug_descr);  in destroy_timer_on_stack()
749 static inline void debug_timer_init(struct timer_list *timer) { }  in debug_timer_init()  argument
750 static inline void debug_timer_activate(struct timer_list *timer) { }  in debug_timer_activate()  argument
751 static inline void debug_timer_deactivate(struct timer_list *timer) { }  in debug_timer_deactivate()  argument
752 static inline void debug_timer_assert_init(struct timer_list *timer) { }  in debug_timer_assert_init()  argument
755 static inline void debug_init(struct timer_list *timer)  in debug_init()  argument
757 	debug_timer_init(timer);  in debug_init()
758 	trace_timer_init(timer);  in debug_init()
762 debug_activate(struct timer_list *timer, unsigned long expires)  in debug_activate()  argument
764 	debug_timer_activate(timer);  in debug_activate()
765 	trace_timer_start(timer, expires, timer->flags);  in debug_activate()
768 static inline void debug_deactivate(struct timer_list *timer)  in debug_deactivate()  argument
770 	debug_timer_deactivate(timer);  in debug_deactivate()
771 	trace_timer_cancel(timer);  in debug_deactivate()
774 static inline void debug_assert_init(struct timer_list *timer)  in debug_assert_init()  argument
776 	debug_timer_assert_init(timer);  in debug_assert_init()
779 static void do_init_timer(struct timer_list *timer,  in do_init_timer()  argument
784 	timer->entry.pprev = NULL;  in do_init_timer()
785 	timer->function = func;  in do_init_timer()
786 	timer->flags = flags | raw_smp_processor_id();  in do_init_timer()
787 	lockdep_init_map(&timer->lockdep_map, name, key, 0);  in do_init_timer()
802 void init_timer_key(struct timer_list *timer,  in init_timer_key()  argument
806 	debug_init(timer);  in init_timer_key()
807 	do_init_timer(timer, func, flags, name, key);  in init_timer_key()
811 static inline void detach_timer(struct timer_list *timer, bool clear_pending)  in detach_timer()  argument
813 	struct hlist_node *entry = &timer->entry;  in detach_timer()
815 	debug_deactivate(timer);  in detach_timer()
823 static int detach_if_pending(struct timer_list *timer, struct timer_base *base,  in detach_if_pending()  argument
826 	unsigned idx = timer_get_idx(timer);  in detach_if_pending()
828 	if (!timer_pending(timer))  in detach_if_pending()
831 	if (hlist_is_singular_node(&timer->entry, base->vectors + idx))  in detach_if_pending()
834 	detach_timer(timer, clear_pending);  in detach_if_pending()
921 static struct timer_base *lock_timer_base(struct timer_list *timer,  in lock_timer_base()  argument
923 	__acquires(timer->base->lock)  in lock_timer_base()
934 		tf = READ_ONCE(timer->flags);  in lock_timer_base()
939 			if (timer->flags == tf)  in lock_timer_base()
951 __mod_timer(struct timer_list *timer, unsigned long expires, unsigned int options)  in __mod_timer()  argument
958 	BUG_ON(!timer->function);  in __mod_timer()
965 	if (timer_pending(timer)) {  in __mod_timer()
971 		long diff = timer->expires - expires;  in __mod_timer()
984 		base = lock_timer_base(timer, &flags);  in __mod_timer()
987 		if (timer_pending(timer) && (options & MOD_TIMER_REDUCE) &&  in __mod_timer()
988 		    time_before_eq(timer->expires, expires)) {  in __mod_timer()
1001 		if (idx == timer_get_idx(timer)) {  in __mod_timer()
1003 				timer->expires = expires;  in __mod_timer()
1004 			else if (time_after(timer->expires, expires))  in __mod_timer()
1005 				timer->expires = expires;  in __mod_timer()
1010 		base = lock_timer_base(timer, &flags);  in __mod_timer()
1014 	ret = detach_if_pending(timer, base, false);  in __mod_timer()
1018 	new_base = get_target_base(base, timer->flags);  in __mod_timer()
1028 		if (likely(base->running_timer != timer)) {  in __mod_timer()
1030 			timer->flags |= TIMER_MIGRATING;  in __mod_timer()
1035 			WRITE_ONCE(timer->flags,  in __mod_timer()
1036 				   (timer->flags & ~TIMER_BASEMASK) | base->cpu);  in __mod_timer()
1041 	debug_activate(timer, expires);  in __mod_timer()
1043 	timer->expires = expires;  in __mod_timer()
1052 		enqueue_timer(base, timer, idx);  in __mod_timer()
1053 		trigger_dyntick_cpu(base, timer);  in __mod_timer()
1055 		internal_add_timer(base, timer);  in __mod_timer()
1074 int mod_timer_pending(struct timer_list *timer, unsigned long expires)  in mod_timer_pending()  argument
1076 	return __mod_timer(timer, expires, MOD_TIMER_PENDING_ONLY);  in mod_timer_pending()
1100 int mod_timer(struct timer_list *timer, unsigned long expires)  in mod_timer()  argument
1102 	return __mod_timer(timer, expires, 0);  in mod_timer()
1115 int timer_reduce(struct timer_list *timer, unsigned long expires)  in timer_reduce()  argument
1117 	return __mod_timer(timer, expires, MOD_TIMER_REDUCE);  in timer_reduce()
1135 void add_timer(struct timer_list *timer)  in add_timer()  argument
1137 	BUG_ON(timer_pending(timer));  in add_timer()
1138 	mod_timer(timer, timer->expires);  in add_timer()
1149 void add_timer_on(struct timer_list *timer, int cpu)  in add_timer_on()  argument
1154 	BUG_ON(timer_pending(timer) || !timer->function);  in add_timer_on()
1156 	new_base = get_timer_cpu_base(timer->flags, cpu);  in add_timer_on()
1163 	base = lock_timer_base(timer, &flags);  in add_timer_on()
1165 		timer->flags |= TIMER_MIGRATING;  in add_timer_on()
1170 		WRITE_ONCE(timer->flags,  in add_timer_on()
1171 			   (timer->flags & ~TIMER_BASEMASK) | cpu);  in add_timer_on()
1175 	debug_activate(timer, timer->expires);  in add_timer_on()
1176 	internal_add_timer(base, timer);  in add_timer_on()
1192 int del_timer(struct timer_list *timer)  in del_timer()  argument
1198 	debug_assert_init(timer);  in del_timer()
1200 	if (timer_pending(timer)) {  in del_timer()
1201 		base = lock_timer_base(timer, &flags);  in del_timer()
1202 		ret = detach_if_pending(timer, base, true);  in del_timer()
1217 int try_to_del_timer_sync(struct timer_list *timer)  in try_to_del_timer_sync()  argument
1223 	debug_assert_init(timer);  in try_to_del_timer_sync()
1225 	base = lock_timer_base(timer, &flags);  in try_to_del_timer_sync()
1227 	if (base->running_timer != timer)  in try_to_del_timer_sync()
1228 		ret = detach_if_pending(timer, base, true);  in try_to_del_timer_sync()
1273 int del_timer_sync(struct timer_list *timer)  in del_timer_sync()  argument
1283 	lock_map_acquire(&timer->lockdep_map);  in del_timer_sync()
1284 	lock_map_release(&timer->lockdep_map);  in del_timer_sync()
1291 	WARN_ON(in_irq() && !(timer->flags & TIMER_IRQSAFE));  in del_timer_sync()
1293 		int ret = try_to_del_timer_sync(timer);  in del_timer_sync()
1302 static void call_timer_fn(struct timer_list *timer, void (*fn)(struct timer_list *))  in call_timer_fn()  argument
1316 	lockdep_copy_map(&lockdep_map, &timer->lockdep_map);  in call_timer_fn()
1325 	trace_timer_expire_entry(timer);  in call_timer_fn()
1326 	fn(timer);  in call_timer_fn()
1327 	trace_timer_expire_exit(timer);  in call_timer_fn()
1347 		struct timer_list *timer;  in expire_timers()  local
1350 		timer = hlist_entry(head->first, struct timer_list, entry);  in expire_timers()
1352 		base->running_timer = timer;  in expire_timers()
1353 		detach_timer(timer, true);  in expire_timers()
1355 		fn = timer->function;  in expire_timers()
1357 		if (timer->flags & TIMER_IRQSAFE) {  in expire_timers()
1359 			call_timer_fn(timer, fn);  in expire_timers()
1363 			call_timer_fn(timer, fn);  in expire_timers()
1725 	struct timer_list timer;  member
1731 	struct process_timer *timeout = from_timer(timeout, t, timer);  in process_timeout()
1767 	struct process_timer timer;  in schedule_timeout()  local
1801 	timer.task = current;  in schedule_timeout()
1802 	timer_setup_on_stack(&timer.timer, process_timeout, 0);  in schedule_timeout()
1803 	__mod_timer(&timer.timer, expire, 0);  in schedule_timeout()
1805 	del_singleshot_timer_sync(&timer.timer);  in schedule_timeout()
1808 	destroy_timer_on_stack(&timer.timer);  in schedule_timeout()
1856 	struct timer_list *timer;  in migrate_timer_list()  local
1860 		timer = hlist_entry(head->first, struct timer_list, entry);  in migrate_timer_list()
1861 		detach_timer(timer, false);  in migrate_timer_list()
1862 		timer->flags = (timer->flags & ~TIMER_BASEMASK) | cpu;  in migrate_timer_list()
1863 		internal_add_timer(new_base, timer);  in migrate_timer_list()