is_known_namespace
if (!is_known_namespace(xattr_name))
if (!is_known_namespace(xattr_name)) {
if (is_known_namespace(name))
if (is_known_namespace(name))
if (!is_known_namespace(ea->name)) {
if (is_known_namespace(ea->name))
if (is_known_namespace(name))
if (is_known_namespace(name))