1454 static bool safe_copy_page(void *dst, struct page *s_page)  in safe_copy_page()  argument
1458 	if (kernel_page_present(s_page)) {  in safe_copy_page()
1459 		zeros_only = do_copy_page(dst, page_address(s_page));  in safe_copy_page()
1461 		hibernate_map_page(s_page);  in safe_copy_page()
1462 		zeros_only = do_copy_page(dst, page_address(s_page));  in safe_copy_page()
1463 		hibernate_unmap_page(s_page);  in safe_copy_page()
1477 	struct page *s_page, *d_page;  in copy_data_page()  local
1481 	s_page = pfn_to_page(src_pfn);  in copy_data_page()
1483 	if (PageHighMem(s_page)) {  in copy_data_page()
1484 		src = kmap_local_page(s_page);  in copy_data_page()
1495 			zeros_only = safe_copy_page(buffer, s_page);  in copy_data_page()
1500 			zeros_only = safe_copy_page(page_address(d_page), s_page);  in copy_data_page()