72 void key_set_expiry(struct key *key, time64_t expiry)  in key_set_expiry()  argument
74 	key->expiry = expiry;  in key_set_expiry()
76 		if (!(key->type->flags & KEY_TYPE_INSTANT_REAP))  in key_set_expiry()
138 		struct key *key =  in key_gc_unused_keys()  local
139 			list_entry(keys->next, struct key, graveyard_link);  in key_gc_unused_keys()
140 		short state = key->state;  in key_gc_unused_keys()
142 		list_del(&key->graveyard_link);  in key_gc_unused_keys()
144 		kdebug("- %u", key->serial);  in key_gc_unused_keys()
145 		key_check(key);  in key_gc_unused_keys()
148 		remove_watch_list(key->watchers, key->serial);  in key_gc_unused_keys()
149 		key->watchers = NULL;  in key_gc_unused_keys()
153 		if (state == KEY_IS_POSITIVE && key->type->destroy)  in key_gc_unused_keys()
154 			key->type->destroy(key);  in key_gc_unused_keys()
156 		security_key_free(key);  in key_gc_unused_keys()
158 		atomic_dec(&key->user->nkeys);  in key_gc_unused_keys()
160 			atomic_dec(&key->user->nikeys);  in key_gc_unused_keys()
162 		key_user_put(key->user);  in key_gc_unused_keys()
163 		key_put_tag(key->domain_tag);  in key_gc_unused_keys()
164 		kfree(key->description);  in key_gc_unused_keys()
166 		memzero_explicit(key, sizeof(*key));  in key_gc_unused_keys()
167 		kmem_cache_free(key_jar, key);  in key_gc_unused_keys()
190 	struct key *key;  in key_garbage_collector()  local
218 		key = rb_entry(cursor, struct key, serial_node);  in key_garbage_collector()
221 		if (refcount_read(&key->usage) == 0)  in key_garbage_collector()
225 			if (key->type == key_gc_dead_keytype) {  in key_garbage_collector()
227 				set_bit(KEY_FLAG_DEAD, &key->flags);  in key_garbage_collector()
228 				key->perm = 0;  in key_garbage_collector()
230 			} else if (key->type == &key_type_keyring &&  in key_garbage_collector()
231 				   key->restrict_link) {  in key_garbage_collector()
236 		expiry = key->expiry;  in key_garbage_collector()
238 			if (!(key->type->flags & KEY_TYPE_INSTANT_REAP))  in key_garbage_collector()
242 				       key_serial(key), key->expiry - limit);  in key_garbage_collector()
243 				new_timer = key->expiry;  in key_garbage_collector()
248 			if (key->type == key_gc_dead_keytype)  in key_garbage_collector()
253 			if (key->type == &key_type_keyring)  in key_garbage_collector()
258 			if (key->type == key_gc_dead_keytype)  in key_garbage_collector()
333 	kdebug("unrefd key %d", key->serial);  in key_garbage_collector()
334 	rb_erase(&key->serial_node, &key_serial_tree);  in key_garbage_collector()
337 	list_add_tail(&key->graveyard_link, &graveyard);  in key_garbage_collector()
346 	keyring_restriction_gc(key, key_gc_dead_keytype);  in key_garbage_collector()
356 	keyring_gc(key, limit);  in key_garbage_collector()
364 	kdebug("destroy key %d", key->serial);  in key_garbage_collector()
365 	down_write(&key->sem);  in key_garbage_collector()
366 	key->type = &key_type_dead;  in key_garbage_collector()
368 		key_gc_dead_keytype->destroy(key);  in key_garbage_collector()
369 	memset(&key->payload, KEY_DESTROY, sizeof(key->payload));  in key_garbage_collector()
370 	up_write(&key->sem);  in key_garbage_collector()