133 static ssize_t read_ahead_kb_store(struct device *dev,  in read_ahead_kb_store()  argument
137 	struct backing_dev_info *bdi = dev_get_drvdata(dev);  in read_ahead_kb_store()
151 static ssize_t name##_show(struct device *dev,				\
154 	struct backing_dev_info *bdi = dev_get_drvdata(dev);		\
162 static ssize_t min_ratio_store(struct device *dev,  in min_ratio_store()  argument
165 	struct backing_dev_info *bdi = dev_get_drvdata(dev);  in min_ratio_store()
181 static ssize_t max_ratio_store(struct device *dev,  in max_ratio_store()  argument
184 	struct backing_dev_info *bdi = dev_get_drvdata(dev);  in max_ratio_store()
200 static ssize_t stable_pages_required_show(struct device *dev,  in stable_pages_required_show()  argument
204 	dev_warn_once(dev,  in stable_pages_required_show()
792 	bdi->dev = NULL;  in bdi_init()
877 	struct device *dev;  in bdi_register_va()  local
880 	if (bdi->dev)	/* The driver needs to use separate queues per device */  in bdi_register_va()
884 	dev = device_create(bdi_class, NULL, MKDEV(0, 0), bdi, bdi->dev_name);  in bdi_register_va()
885 	if (IS_ERR(dev))  in bdi_register_va()
886 		return PTR_ERR(dev);  in bdi_register_va()
889 	bdi->dev = dev;  in bdi_register_va()
891 	bdi_debug_register(bdi, dev_name(dev));  in bdi_register_va()
958 	if (bdi->dev) {  in bdi_unregister()
960 		device_unregister(bdi->dev);  in bdi_unregister()
961 		bdi->dev = NULL;  in bdi_unregister()
977 	WARN_ON_ONCE(bdi->dev);  in release_bdi()
990 	if (!bdi || !bdi->dev)  in bdi_dev_name()