1211 static void safe_copy_page(void *dst, struct page *s_page)  in safe_copy_page()  argument
1213 	if (kernel_page_present(s_page)) {  in safe_copy_page()
1214 		do_copy_page(dst, page_address(s_page));  in safe_copy_page()
1216 		kernel_map_pages(s_page, 1, 1);  in safe_copy_page()
1217 		do_copy_page(dst, page_address(s_page));  in safe_copy_page()
1218 		kernel_map_pages(s_page, 1, 0);  in safe_copy_page()
1233 	struct page *s_page, *d_page;  in copy_data_page()  local
1236 	s_page = pfn_to_page(src_pfn);  in copy_data_page()
1238 	if (PageHighMem(s_page)) {  in copy_data_page()
1239 		src = kmap_atomic(s_page);  in copy_data_page()
1249 			safe_copy_page(buffer, s_page);  in copy_data_page()
1254 			safe_copy_page(page_address(d_page), s_page);  in copy_data_page()