130 		struct key *key =  in key_gc_unused_keys()  local
131 			list_entry(keys->next, struct key, graveyard_link);  in key_gc_unused_keys()
132 		list_del(&key->graveyard_link);  in key_gc_unused_keys()
134 		kdebug("- %u", key->serial);  in key_gc_unused_keys()
135 		key_check(key);  in key_gc_unused_keys()
138 		if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags) &&  in key_gc_unused_keys()
139 		    !test_bit(KEY_FLAG_NEGATIVE, &key->flags) &&  in key_gc_unused_keys()
140 		    key->type->destroy)  in key_gc_unused_keys()
141 			key->type->destroy(key);  in key_gc_unused_keys()
143 		security_key_free(key);  in key_gc_unused_keys()
146 		if (test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) {  in key_gc_unused_keys()
147 			spin_lock(&key->user->lock);  in key_gc_unused_keys()
148 			key->user->qnkeys--;  in key_gc_unused_keys()
149 			key->user->qnbytes -= key->quotalen;  in key_gc_unused_keys()
150 			spin_unlock(&key->user->lock);  in key_gc_unused_keys()
153 		atomic_dec(&key->user->nkeys);  in key_gc_unused_keys()
154 		if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags))  in key_gc_unused_keys()
155 			atomic_dec(&key->user->nikeys);  in key_gc_unused_keys()
157 		key_user_put(key->user);  in key_gc_unused_keys()
159 		kfree(key->description);  in key_gc_unused_keys()
162 		key->magic = KEY_DEBUG_MAGIC_X;  in key_gc_unused_keys()
164 		kmem_cache_free(key_jar, key);  in key_gc_unused_keys()
188 	struct key *key;  in key_garbage_collector()  local
220 		key = rb_entry(cursor, struct key, serial_node);  in key_garbage_collector()
223 		if (atomic_read(&key->usage) == 0)  in key_garbage_collector()
227 			if (key->type == key_gc_dead_keytype) {  in key_garbage_collector()
229 				set_bit(KEY_FLAG_DEAD, &key->flags);  in key_garbage_collector()
230 				key->perm = 0;  in key_garbage_collector()
236 			if (key->expiry > limit && key->expiry < new_timer) {  in key_garbage_collector()
238 				       key_serial(key), key->expiry - limit);  in key_garbage_collector()
239 				new_timer = key->expiry;  in key_garbage_collector()
244 			if (key->type == key_gc_dead_keytype)  in key_garbage_collector()
249 			if (key->type == &key_type_keyring)  in key_garbage_collector()
254 			if (key->type == key_gc_dead_keytype)  in key_garbage_collector()
329 	kdebug("unrefd key %d", key->serial);  in key_garbage_collector()
330 	rb_erase(&key->serial_node, &key_serial_tree);  in key_garbage_collector()
333 	list_add_tail(&key->graveyard_link, &graveyard);  in key_garbage_collector()
344 	keyring_gc(key, limit);  in key_garbage_collector()
352 	kdebug("destroy key %d", key->serial);  in key_garbage_collector()
353 	down_write(&key->sem);  in key_garbage_collector()
354 	key->type = &key_type_dead;  in key_garbage_collector()
356 		key_gc_dead_keytype->destroy(key);  in key_garbage_collector()
357 	memset(&key->payload, KEY_DESTROY, sizeof(key->payload));  in key_garbage_collector()
358 	up_write(&key->sem);  in key_garbage_collector()