um/kernel/irq.c

47 struct irq_entry {
94 static bool irq_do_timetravel_handler(struct irq_entry *entry,
118 static bool irq_do_timetravel_handler(struct irq_entry *entry,
125 static void sigio_reg_handler(int idx, struct irq_entry *entry, enum um_irq_type t,
159 	struct irq_entry *irq_entry;
184 			irq_entry = os_epoll_get_data_pointer(i);
187 				sigio_reg_handler(i, irq_entry, t, regs,
201 static struct irq_entry *get_irq_entry_by_fd(int fd)
203 	struct irq_entry *walk;
215 static void free_irq_entry(struct irq_entry *to_free, bool remove)
226 static bool update_irq_entry(struct irq_entry *entry)
244 static void update_or_free_irq_entry(struct irq_entry *entry)
254 	struct irq_entry *irq_entry;
263 	irq_entry = get_irq_entry_by_fd(fd);
264 	if (irq_entry) {
266 		if (WARN_ON(irq_entry->reg[type].events)) {
274 		irq_entry = kzalloc(sizeof(*irq_entry), GFP_ATOMIC);
275 		if (!irq_entry) {
279 		irq_entry->fd = fd;
280 		list_add_tail(&irq_entry->list, &active_fds);
284 	irq_entry->reg[type].id = dev_id;
285 	irq_entry->reg[type].irq = irq;
286 	irq_entry->reg[type].active = true;
287 	irq_entry->reg[type].events = events;
291 		irq_entry->reg[type].timetravel_handler = timetravel_handler;
292 		irq_entry->reg[type].event.fn = irq_event_handler;
296 	WARN_ON(!update_irq_entry(irq_entry));
313 	struct irq_entry *to_free;
325 	struct irq_entry *entry;
354 	struct irq_entry *entry;
388 	struct irq_entry *entry;
499 	struct irq_entry *entry;
542 	struct irq_entry *entry;
591 	struct irq_entry *entry;