34 static int setup_context(unsigned entries, struct io_uring *ring)  in setup_context()  argument
38 	ret = io_uring_queue_init(entries, ring, 0);  in setup_context()
69 static void queue_prepped(struct io_uring *ring, struct io_data *data)  in queue_prepped()  argument
73 	sqe = io_uring_get_sqe(ring);  in queue_prepped()
84 static int queue_read(struct io_uring *ring, off_t size, off_t offset)  in queue_read()  argument
93 	sqe = io_uring_get_sqe(ring);  in queue_read()
111 static void queue_write(struct io_uring *ring, struct io_data *data)  in queue_write()  argument
119 	queue_prepped(ring, data);  in queue_write()
120 	io_uring_submit(ring);  in queue_write()
123 static int copy_file(struct io_uring *ring, off_t insize)  in copy_file()  argument
150 			if (queue_read(ring, this_size, offset))  in copy_file()
159 			ret = io_uring_submit(ring);  in copy_file()
174 				ret = io_uring_wait_cqe(ring, &cqe);  in copy_file()
177 				ret = io_uring_peek_cqe(ring, &cqe);  in copy_file()
194 					queue_prepped(ring, data);  in copy_file()
195 					io_uring_cqe_seen(ring, cqe);  in copy_file()
206 				queue_prepped(ring, data);  in copy_file()
207 				io_uring_cqe_seen(ring, cqe);  in copy_file()
216 				queue_write(ring, data);  in copy_file()
224 			io_uring_cqe_seen(ring, cqe);  in copy_file()
232 		ret = io_uring_wait_cqe(ring, &cqe);  in copy_file()
244 		io_uring_cqe_seen(ring, cqe);  in copy_file()
252 	struct io_uring ring;  in main()  local
272 	if (setup_context(QD, &ring))  in main()
277 	ret = copy_file(&ring, insize);  in main()
281 	io_uring_queue_exit(&ring);  in main()