security/keys/keyctl.c

375  * Keys with KEY_FLAG_KEEP set should not be revoked.
399 	if (test_bit(KEY_FLAG_KEEP, &key->flags))
416  * Keys with KEY_FLAG_KEEP set should not be invalidated.
449 	if (test_bit(KEY_FLAG_KEEP, &key->flags))
465  * KEY_FLAG_KEEP set for this to work.  If successful, 0 will be returned.
494 	if (test_bit(KEY_FLAG_KEEP, &keyring->flags))
548  * Keys or keyrings with KEY_FLAG_KEEP set should not be unlinked.
572 	if (test_bit(KEY_FLAG_KEEP, &keyring->flags) &&
573 	    test_bit(KEY_FLAG_KEEP, &key->flags))
1453  * Keys with KEY_FLAG_KEEP set should not be timed out.
1487 	if (test_bit(KEY_FLAG_KEEP, &key->flags)) {