ECRYPTFS_CONTAINS_DECRYPTED_KEY
if (auth_tok->session_key.flags & ECRYPTFS_CONTAINS_DECRYPTED_KEY) {
auth_tok->session_key.flags |= ECRYPTFS_CONTAINS_DECRYPTED_KEY;
~ECRYPTFS_CONTAINS_DECRYPTED_KEY;
~ECRYPTFS_CONTAINS_DECRYPTED_KEY;
auth_tok->session_key.flags |= ECRYPTFS_CONTAINS_DECRYPTED_KEY;