125 		struct key *key =  in key_gc_unused_keys()  local
126 			list_entry(keys->next, struct key, graveyard_link);  in key_gc_unused_keys()
127 		short state = key->state;  in key_gc_unused_keys()
129 		list_del(&key->graveyard_link);  in key_gc_unused_keys()
131 		kdebug("- %u", key->serial);  in key_gc_unused_keys()
132 		key_check(key);  in key_gc_unused_keys()
135 		if (state == KEY_IS_POSITIVE && key->type->destroy)  in key_gc_unused_keys()
136 			key->type->destroy(key);  in key_gc_unused_keys()
138 		security_key_free(key);  in key_gc_unused_keys()
141 		if (test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) {  in key_gc_unused_keys()
142 			spin_lock(&key->user->lock);  in key_gc_unused_keys()
143 			key->user->qnkeys--;  in key_gc_unused_keys()
144 			key->user->qnbytes -= key->quotalen;  in key_gc_unused_keys()
145 			spin_unlock(&key->user->lock);  in key_gc_unused_keys()
148 		atomic_dec(&key->user->nkeys);  in key_gc_unused_keys()
150 			atomic_dec(&key->user->nikeys);  in key_gc_unused_keys()
152 		key_user_put(key->user);  in key_gc_unused_keys()
153 		key_put_tag(key->domain_tag);  in key_gc_unused_keys()
154 		kfree(key->description);  in key_gc_unused_keys()
156 		memzero_explicit(key, sizeof(*key));  in key_gc_unused_keys()
157 		kmem_cache_free(key_jar, key);  in key_gc_unused_keys()
181 	struct key *key;  in key_garbage_collector()  local
213 		key = rb_entry(cursor, struct key, serial_node);  in key_garbage_collector()
216 		if (refcount_read(&key->usage) == 0)  in key_garbage_collector()
220 			if (key->type == key_gc_dead_keytype) {  in key_garbage_collector()
222 				set_bit(KEY_FLAG_DEAD, &key->flags);  in key_garbage_collector()
223 				key->perm = 0;  in key_garbage_collector()
225 			} else if (key->type == &key_type_keyring &&  in key_garbage_collector()
226 				   key->restrict_link) {  in key_garbage_collector()
232 			if (key->expiry > limit && key->expiry < new_timer) {  in key_garbage_collector()
234 				       key_serial(key), key->expiry - limit);  in key_garbage_collector()
235 				new_timer = key->expiry;  in key_garbage_collector()
240 			if (key->type == key_gc_dead_keytype)  in key_garbage_collector()
245 			if (key->type == &key_type_keyring)  in key_garbage_collector()
250 			if (key->type == key_gc_dead_keytype)  in key_garbage_collector()
325 	kdebug("unrefd key %d", key->serial);  in key_garbage_collector()
326 	rb_erase(&key->serial_node, &key_serial_tree);  in key_garbage_collector()
329 	list_add_tail(&key->graveyard_link, &graveyard);  in key_garbage_collector()
338 	keyring_restriction_gc(key, key_gc_dead_keytype);  in key_garbage_collector()
348 	keyring_gc(key, limit);  in key_garbage_collector()
356 	kdebug("destroy key %d", key->serial);  in key_garbage_collector()
357 	down_write(&key->sem);  in key_garbage_collector()
358 	key->type = &key_type_dead;  in key_garbage_collector()
360 		key_gc_dead_keytype->destroy(key);  in key_garbage_collector()
361 	memset(&key->payload, KEY_DESTROY, sizeof(key->payload));  in key_garbage_collector()
362 	up_write(&key->sem);  in key_garbage_collector()