569 static void retry_copy_page(int ufd, struct uffdio_copy *uffdio_copy,  in retry_copy_page()  argument
572 	uffd_test_ops->alias_mapping(&uffdio_copy->dst,  in retry_copy_page()
573 				     uffdio_copy->len,  in retry_copy_page()
575 	if (ioctl(ufd, UFFDIO_COPY, uffdio_copy)) {  in retry_copy_page()
577 		if (uffdio_copy->copy != -EEXIST)  in retry_copy_page()
579 			    (int64_t)uffdio_copy->copy);  in retry_copy_page()
582 		    (int64_t)uffdio_copy->copy);  in retry_copy_page()
588 	struct uffdio_copy uffdio_copy;  in __copy_page()  local
592 	uffdio_copy.dst = (unsigned long) area_dst + offset;  in __copy_page()
593 	uffdio_copy.src = (unsigned long) area_src + offset;  in __copy_page()
594 	uffdio_copy.len = page_size;  in __copy_page()
596 		uffdio_copy.mode = UFFDIO_COPY_MODE_WP;  in __copy_page()
598 		uffdio_copy.mode = 0;  in __copy_page()
599 	uffdio_copy.copy = 0;  in __copy_page()
600 	if (ioctl(ufd, UFFDIO_COPY, &uffdio_copy)) {  in __copy_page()
602 		if (uffdio_copy.copy != -EEXIST)  in __copy_page()
604 			    (int64_t)uffdio_copy.copy);  in __copy_page()
605 	} else if (uffdio_copy.copy != page_size) {  in __copy_page()
606 		err("UFFDIO_COPY error: %"PRId64, (int64_t)uffdio_copy.copy);  in __copy_page()
610 			retry_copy_page(ufd, &uffdio_copy, offset);  in __copy_page()