155 	struct key *key;  in SYSCALL_DEFINE4()  local
203 	key = request_key_and_link(ktype, description, callout_info,  in SYSCALL_DEFINE4()
206 	if (IS_ERR(key)) {  in SYSCALL_DEFINE4()
207 		ret = PTR_ERR(key);  in SYSCALL_DEFINE4()
211 	ret = key->serial;  in SYSCALL_DEFINE4()
213  	key_put(key);  in SYSCALL_DEFINE4()
463 	struct key *key, *instkey;  in keyctl_describe_key()  local
494 	key = key_ref_to_ptr(key_ref);  in keyctl_describe_key()
635 	struct key *key;  in keyctl_read_key()  local
646 	key = key_ref_to_ptr(key_ref);  in keyctl_read_key()
666 	ret = key_validate(key);  in keyctl_read_key()
669 		if (key->type->read) {  in keyctl_read_key()
672 			down_read(&key->sem);  in keyctl_read_key()
673 			ret = key->type->read(key, buffer, buflen);  in keyctl_read_key()
674 			up_read(&key->sem);  in keyctl_read_key()
679 	key_put(key);  in keyctl_read_key()
695 	struct key *key;  in keyctl_chown_key()  local
709 	key = key_ref_to_ptr(key_ref);  in keyctl_chown_key()
713 	down_write(&key->sem);  in keyctl_chown_key()
717 		if (uid != (uid_t) -1 && key->uid != uid)  in keyctl_chown_key()
722 		if (gid != (gid_t) -1 && gid != key->gid && !in_group_p(gid))  in keyctl_chown_key()
727 	if (uid != (uid_t) -1 && uid != key->uid) {  in keyctl_chown_key()
734 		if (test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) {  in keyctl_chown_key()
742 			    newowner->qnbytes + key->quotalen >= maxbytes ||  in keyctl_chown_key()
743 			    newowner->qnbytes + key->quotalen <  in keyctl_chown_key()
748 			newowner->qnbytes += key->quotalen;  in keyctl_chown_key()
751 			spin_lock(&key->user->lock);  in keyctl_chown_key()
752 			key->user->qnkeys--;  in keyctl_chown_key()
753 			key->user->qnbytes -= key->quotalen;  in keyctl_chown_key()
754 			spin_unlock(&key->user->lock);  in keyctl_chown_key()
757 		atomic_dec(&key->user->nkeys);  in keyctl_chown_key()
760 		if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) {  in keyctl_chown_key()
761 			atomic_dec(&key->user->nikeys);  in keyctl_chown_key()
765 		zapowner = key->user;  in keyctl_chown_key()
766 		key->user = newowner;  in keyctl_chown_key()
767 		key->uid = uid;  in keyctl_chown_key()
772 		key->gid = gid;  in keyctl_chown_key()
777 	up_write(&key->sem);  in keyctl_chown_key()
778 	key_put(key);  in keyctl_chown_key()
800 	struct key *key;  in keyctl_setperm_key()  local
814 	key = key_ref_to_ptr(key_ref);  in keyctl_setperm_key()
818 	down_write(&key->sem);  in keyctl_setperm_key()
821 	if (capable(CAP_SYS_ADMIN) || key->uid == current_fsuid()) {  in keyctl_setperm_key()
822 		key->perm = perm;  in keyctl_setperm_key()
826 	up_write(&key->sem);  in keyctl_setperm_key()
827 	key_put(key);  in keyctl_setperm_key()
838 				      struct key **_dest_keyring)  in get_instantiation_keyring()
873 static int keyctl_change_reqkey_auth(struct key *key)  in keyctl_change_reqkey_auth()  argument
882 	new->request_key_auth = key_get(key);  in keyctl_change_reqkey_auth()
899 	struct key *instkey, *dest_keyring;  in keyctl_instantiate_key()
977 	struct key *instkey, *dest_keyring;  in keyctl_negate_key()
1081 	struct key *key;  in keyctl_set_timeout()  local
1092 	key = key_ref_to_ptr(key_ref);  in keyctl_set_timeout()
1095 	down_write(&key->sem);  in keyctl_set_timeout()
1103 	key->expiry = expiry;  in keyctl_set_timeout()
1105 	up_write(&key->sem);  in keyctl_set_timeout()
1106 	key_put(key);  in keyctl_set_timeout()
1120 	struct key *authkey;  in keyctl_assume_authority()
1168 	struct key *key, *instkey;  in keyctl_get_security()  local
1190 	key = key_ref_to_ptr(key_ref);  in keyctl_get_security()
1191 	ret = security_key_getsecurity(key, &context);  in keyctl_get_security()