395 static void retry_copy_page(int ufd, struct uffdio_copy *uffdio_copy,  in retry_copy_page()  argument
398 	uffd_test_ops->alias_mapping(&uffdio_copy->dst,  in retry_copy_page()
399 				     uffdio_copy->len,  in retry_copy_page()
401 	if (ioctl(ufd, UFFDIO_COPY, uffdio_copy)) {  in retry_copy_page()
403 		if (uffdio_copy->copy != -EEXIST)  in retry_copy_page()
405 				uffdio_copy->copy), exit(1);  in retry_copy_page()
408 			uffdio_copy->copy), exit(1);  in retry_copy_page()
414 	struct uffdio_copy uffdio_copy;  in __copy_page()  local
419 	uffdio_copy.dst = (unsigned long) area_dst + offset;  in __copy_page()
420 	uffdio_copy.src = (unsigned long) area_src + offset;  in __copy_page()
421 	uffdio_copy.len = page_size;  in __copy_page()
422 	uffdio_copy.mode = 0;  in __copy_page()
423 	uffdio_copy.copy = 0;  in __copy_page()
424 	if (ioctl(ufd, UFFDIO_COPY, &uffdio_copy)) {  in __copy_page()
426 		if (uffdio_copy.copy != -EEXIST)  in __copy_page()
428 				uffdio_copy.copy), exit(1);  in __copy_page()
429 	} else if (uffdio_copy.copy != page_size) {  in __copy_page()
431 			uffdio_copy.copy), exit(1);  in __copy_page()
435 			retry_copy_page(ufd, &uffdio_copy, offset);  in __copy_page()