pin_page_for_write  105 arch/arm/lib/uaccess_with_memcpy.c 		while (!pin_page_for_write(to, &pte, &ptl)) {
pin_page_for_write  174 arch/arm/lib/uaccess_with_memcpy.c 		while (!pin_page_for_write(addr, &pte, &ptl)) {