security/tomoyo/gc.c

42 	struct tomoyo_io_buffer *head;
46 	list_for_each_entry(head, &tomoyo_io_buffer_list, list) {
47 		head->users++;
49 		mutex_lock(&head->io_sem);
50 		if (head->r.domain == element || head->r.group == element ||
51 		    head->r.acl == element || &head->w.domain->list == element)
53 		mutex_unlock(&head->io_sem);
55 		head->users--;
73 	struct tomoyo_io_buffer *head;
78 	list_for_each_entry(head, &tomoyo_io_buffer_list, list) {
81 		head->users++;
83 		mutex_lock(&head->io_sem);
85 			const char *w = head->r.w[i];
92 		mutex_unlock(&head->io_sem);
94 		head->users--;
112 		container_of(element, typeof(*ptr), head.list);
128 		container_of(element, typeof(*ptr), head.list);
144 		container_of(element, typeof(*ptr), head.list);
166 				= container_of(acl, typeof(*entry), head);
173 				= container_of(acl, typeof(*entry), head);
181 				= container_of(acl, typeof(*entry), head);
189 				= container_of(acl, typeof(*entry), head);
199 				= container_of(acl, typeof(*entry), head);
209 				container_of(acl, typeof(*entry), head);
217 				container_of(acl, typeof(*entry), head);
226 				container_of(acl, typeof(*entry), head);
234 				container_of(acl, typeof(*entry), head);
280 						     head.list);
332 		container_of(element, typeof(*member), head.list);
347 		container_of(element, typeof(*group), head.list);
439 				  head.list)->entry.name))
578 			list_for_each_entry_safe(group, tmp, list, head.list) {
581 				    atomic_read(&group->head.users) > 0)
583 				atomic_set(&group->head.users,
586 						 &group->head.list);
621 		struct tomoyo_io_buffer *head;
625 		list_for_each_entry_safe(head, tmp, &tomoyo_io_buffer_list,
627 			if (head->users)
629 			list_del(&head->list);
630 			kfree(head->read_buf);
631 			kfree(head->write_buf);
632 			kfree(head);
645  * @head:        Pointer to "struct tomoyo_io_buffer".
650 void tomoyo_notify_gc(struct tomoyo_io_buffer *head, const bool is_register)
656 		head->users = 1;
657 		list_add(&head->list, &tomoyo_io_buffer_list);
659 		is_write = head->write_buf != NULL;
660 		if (!--head->users) {
661 			list_del(&head->list);
662 			kfree(head->read_buf);
663 			kfree(head->write_buf);
664 			kfree(head);