struct key *keyring)
struct key *keyring, struct key *instkey)
int key_instantiate_and_link(struct key *key,			     const void *data,			     size_t datalen,			     struct key *keyring){	int ret;	if (keyring)		down_write(&keyring->sem);	ret = __key_instantiate_and_link(key, data, datalen, keyring);	if (keyring)		up_write(&keyring->sem);	return ret;} /* end key_instantiate_and_link() */