305 		struct io_poll_iocb	poll;  member
1685 	struct io_poll_iocb *poll = &req->poll;  in io_poll_remove_one()  local
1687 	spin_lock(&poll->head->lock);  in io_poll_remove_one()
1688 	WRITE_ONCE(poll->canceled, true);  in io_poll_remove_one()
1689 	if (!list_empty(&poll->wait.entry)) {  in io_poll_remove_one()
1690 		list_del_init(&poll->wait.entry);  in io_poll_remove_one()
1693 	spin_unlock(&poll->head->lock);  in io_poll_remove_one()
1744 	req->poll.done = true;  in io_poll_complete()
1752 	struct io_poll_iocb *poll = &req->poll;  in io_poll_complete_work()  local
1753 	struct poll_table_struct pt = { ._key = poll->events };  in io_poll_complete_work()
1757 	if (!READ_ONCE(poll->canceled))  in io_poll_complete_work()
1758 		mask = vfs_poll(poll->file, &pt) & poll->events;  in io_poll_complete_work()
1768 	if (!mask && !READ_ONCE(poll->canceled)) {  in io_poll_complete_work()
1769 		add_wait_queue(poll->head, &poll->wait);  in io_poll_complete_work()
1784 	struct io_poll_iocb *poll = container_of(wait, struct io_poll_iocb,  in io_poll_wake()  local
1786 	struct io_kiocb *req = container_of(poll, struct io_kiocb, poll);  in io_poll_wake()
1792 	if (mask && !(mask & poll->events))  in io_poll_wake()
1795 	list_del_init(&poll->wait.entry);  in io_poll_wake()
1822 	if (unlikely(pt->req->poll.head)) {  in io_poll_queue_proc()
1828 	pt->req->poll.head = head;  in io_poll_queue_proc()
1829 	add_wait_queue(head, &pt->req->poll.wait);  in io_poll_queue_proc()
1834 	struct io_poll_iocb *poll = &req->poll;  in io_poll_add()  local
1845 	if (!poll->file)  in io_poll_add()
1851 	poll->events = demangle_poll(events) | EPOLLERR | EPOLLHUP;  in io_poll_add()
1853 	poll->head = NULL;  in io_poll_add()
1854 	poll->done = false;  in io_poll_add()
1855 	poll->canceled = false;  in io_poll_add()
1858 	ipt.pt._key = poll->events;  in io_poll_add()
1863 	INIT_LIST_HEAD(&poll->wait.entry);  in io_poll_add()
1864 	init_waitqueue_func_entry(&poll->wait, io_poll_wake);  in io_poll_add()
1868 	mask = vfs_poll(poll->file, &ipt.pt) & poll->events;  in io_poll_add()
1871 	if (likely(poll->head)) {  in io_poll_add()
1872 		spin_lock(&poll->head->lock);  in io_poll_add()
1873 		if (unlikely(list_empty(&poll->wait.entry))) {  in io_poll_add()
1880 			list_del_init(&poll->wait.entry);  in io_poll_add()
1882 			WRITE_ONCE(poll->canceled, true);  in io_poll_add()
1883 		else if (!poll->done) /* actually waiting for an event */  in io_poll_add()
1885 		spin_unlock(&poll->head->lock);  in io_poll_add()
3714 	.poll		= io_uring_poll,