283  * @internal_strong_refs: used to take strong references when
290  * @local_strong_refs:    strong user refs from local process
303  * @has_strong_ref:       userspace notified of strong ref
306  * @pending_strong_ref:   userspace has acked notification of strong ref
380  * @strong:          strong ref count (debugging only if not locked)
391 	int strong;  member
1226 static int binder_inc_node_nilocked(struct binder_node *node, int strong,  in binder_inc_node_nilocked()  argument
1235 	if (strong) {  in binder_inc_node_nilocked()
1242 				pr_err("invalid inc strong node for %d\n",  in binder_inc_node_nilocked()
1275 static int binder_inc_node(struct binder_node *node, int strong, int internal,  in binder_inc_node()  argument
1281 	ret = binder_inc_node_nilocked(node, strong, internal, target_list);  in binder_inc_node()
1288 				     int strong, int internal)  in binder_dec_node_nilocked()  argument
1295 	if (strong) {  in binder_dec_node_nilocked()
1347 static void binder_dec_node(struct binder_node *node, int strong, int internal)  in binder_dec_node()  argument
1352 	free_node = binder_dec_node_nilocked(node, strong, internal);  in binder_dec_node()
1419 	 * and cleanup is needed. Calling with strong=0 and internal=1  in binder_dec_node_tmpref()
1447 		} else if (need_strong_ref && !ref->data.strong) {  in binder_get_ref_olocked()
1448 			binder_user_error("tried to use weak ref as strong ref\n");  in binder_get_ref_olocked()
1554 	if (ref->data.strong)  in binder_cleanup_ref_olocked()
1586  * @strong:      if true, strong increment, else weak
1593 static int binder_inc_ref_olocked(struct binder_ref *ref, int strong,  in binder_inc_ref_olocked()  argument
1598 	if (strong) {  in binder_inc_ref_olocked()
1599 		if (ref->data.strong == 0) {  in binder_inc_ref_olocked()
1604 		ref->data.strong++;  in binder_inc_ref_olocked()
1619  * @strong:	if true, strong decrement, else weak
1625 static bool binder_dec_ref_olocked(struct binder_ref *ref, int strong)  in binder_dec_ref_olocked()  argument
1627 	if (strong) {  in binder_dec_ref_olocked()
1628 		if (ref->data.strong == 0) {  in binder_dec_ref_olocked()
1629 			binder_user_error("%d invalid dec strong, ref %d desc %d s %d w %d\n",  in binder_dec_ref_olocked()
1631 					  ref->data.desc, ref->data.strong,  in binder_dec_ref_olocked()
1635 		ref->data.strong--;  in binder_dec_ref_olocked()
1636 		if (ref->data.strong == 0)  in binder_dec_ref_olocked()
1637 			binder_dec_node(ref->node, strong, 1);  in binder_dec_ref_olocked()
1642 					  ref->data.desc, ref->data.strong,  in binder_dec_ref_olocked()
1648 	if (ref->data.strong == 0 && ref->data.weak == 0) {  in binder_dec_ref_olocked()
1659  * @need_strong_ref: if true, only return node if ref is strong
1664  * Return: a binder_node or NULL if not found or not strong when strong required
1715  * @strong:	true=strong reference, false=weak reference
1724 		uint32_t desc, bool increment, bool strong,  in binder_update_ref_for_handle()  argument
1732 	ref = binder_get_ref_olocked(proc, desc, strong);  in binder_update_ref_for_handle()
1738 		ret = binder_inc_ref_olocked(ref, strong, NULL);  in binder_update_ref_for_handle()
1740 		delete_ref = binder_dec_ref_olocked(ref, strong);  in binder_update_ref_for_handle()
1759  * @strong:	true=strong reference, false=weak reference
1767 		uint32_t desc, bool strong, struct binder_ref_data *rdata)  in binder_dec_ref_for_handle()  argument
1769 	return binder_update_ref_for_handle(proc, desc, false, strong, rdata);  in binder_dec_ref_for_handle()
1777  * @strong:	 true=strong reference, false=weak reference
1788 			bool strong,  in binder_inc_ref_for_node()  argument
1806 	ret = binder_inc_ref_olocked(ref, strong, target_list);  in binder_inc_ref_for_node()
1813 		 * with strong=0 and a tmp_refs will not decrement  in binder_inc_ref_for_node()
3143  * since it has a reference to the target. The local strong ref keeps it
3146  * counting bug, relying on the local strong ref can fail.
3148  * Since user-space can cause the local strong ref to go away, we also take
3284 			 * There must already be a strong ref  in binder_transaction()
3285 			 * on this node. If so, do a strong  in binder_transaction()
4063 			bool strong = cmd == BC_ACQUIRE || cmd == BC_RELEASE;  in binder_thread_write()  local
4085 							strong, NULL, &rdata);  in binder_thread_write()
4091 						proc, target, increment, strong,  in binder_thread_write()
4116 					strong, target, ret);  in binder_thread_write()
4122 				     rdata.debug_id, rdata.desc, rdata.strong,  in binder_thread_write()
4349 				     ref->data.desc, ref->data.strong,  in binder_thread_write()
4737 			int strong, weak;  in binder_thread_read()  local
4746 			strong = node->internal_strong_refs ||  in binder_thread_read()
4750 					node->tmp_refs || strong;  in binder_thread_read()
4759 			if (strong && !has_strong_ref) {  in binder_thread_read()
4764 			if (!strong && has_strong_ref)  in binder_thread_read()
4768 			if (!weak && !strong) {  in binder_thread_read()
4797 			if (!ret && strong && !has_strong_ref)  in binder_thread_read()
4802 			if (!ret && !strong && has_strong_ref)  in binder_thread_read()
6229 		   ref->node->debug_id, ref->data.strong,  in print_binder_ref_olocked()
6403 	int count, strong, weak, ready_threads;  in print_binder_proc_stats()  local
6431 	strong = 0;  in print_binder_proc_stats()
6438 		strong += ref->data.strong;  in print_binder_proc_stats()
6442 	seq_printf(m, "  refs: %d s %d w %d\n", count, strong, weak);  in print_binder_proc_stats()