385 static void retry_copy_page(int ufd, struct uffdio_copy *uffdio_copy,  in retry_copy_page()  argument
388 	uffd_test_ops->alias_mapping(&uffdio_copy->dst,  in retry_copy_page()
389 				     uffdio_copy->len,  in retry_copy_page()
391 	if (ioctl(ufd, UFFDIO_COPY, uffdio_copy)) {  in retry_copy_page()
393 		if (uffdio_copy->copy != -EEXIST)  in retry_copy_page()
395 				uffdio_copy->copy), exit(1);  in retry_copy_page()
398 			uffdio_copy->copy), exit(1);  in retry_copy_page()
404 	struct uffdio_copy uffdio_copy;  in __copy_page()  local
409 	uffdio_copy.dst = (unsigned long) area_dst + offset;  in __copy_page()
410 	uffdio_copy.src = (unsigned long) area_src + offset;  in __copy_page()
411 	uffdio_copy.len = page_size;  in __copy_page()
412 	uffdio_copy.mode = 0;  in __copy_page()
413 	uffdio_copy.copy = 0;  in __copy_page()
414 	if (ioctl(ufd, UFFDIO_COPY, &uffdio_copy)) {  in __copy_page()
416 		if (uffdio_copy.copy != -EEXIST)  in __copy_page()
418 				uffdio_copy.copy), exit(1);  in __copy_page()
419 	} else if (uffdio_copy.copy != page_size) {  in __copy_page()
421 			uffdio_copy.copy), exit(1);  in __copy_page()
425 			retry_copy_page(ufd, &uffdio_copy, offset);  in __copy_page()