fs/crypto/keyring.c

29 /* The master encryption keys for a filesystem (->s_master_keys) */
99 	if (WARN_ON_ONCE(!sb->s_master_keys))
101 	spin_lock(&sb->s_master_keys->lock);
103 	spin_unlock(&sb->s_master_keys->lock);
203 /* Create ->s_master_keys if needed.  Synchronized by fscrypt_add_key_mutex. */
208 	if (sb->s_master_keys)
217 	 * I.e., here we publish ->s_master_keys with a RELEASE barrier so that
220 	smp_store_release(&sb->s_master_keys, keyring);
236 	struct fscrypt_keyring *keyring = sb->s_master_keys;
263 	sb->s_master_keys = NULL;
281  * Find the specified master key struct in ->s_master_keys and take a structural
283  * exist, but it does *not* guarantee that ->s_master_keys continues to contain
297 	 * I.e., another task can publish ->s_master_keys concurrently,
301 	keyring = smp_load_acquire(&sb->s_master_keys);
426  * insert it into sb->s_master_keys.
432 	struct fscrypt_keyring *keyring = sb->s_master_keys;
526 		/* Didn't find the key in ->s_master_keys.  Add it. */
532 		 * Found the key in ->s_master_keys.  Add the user to ->mk_users