134 static ssize_t read_ahead_kb_store(struct device *dev,  in read_ahead_kb_store()  argument
138 	struct backing_dev_info *bdi = dev_get_drvdata(dev);  in read_ahead_kb_store()
154 static ssize_t name##_show(struct device *dev,				\
157 	struct backing_dev_info *bdi = dev_get_drvdata(dev);		\
165 static ssize_t min_ratio_store(struct device *dev,  in min_ratio_store()  argument
168 	struct backing_dev_info *bdi = dev_get_drvdata(dev);  in min_ratio_store()
184 static ssize_t max_ratio_store(struct device *dev,  in max_ratio_store()  argument
187 	struct backing_dev_info *bdi = dev_get_drvdata(dev);  in max_ratio_store()
203 static ssize_t stable_pages_required_show(struct device *dev,  in stable_pages_required_show()  argument
207 	struct backing_dev_info *bdi = dev_get_drvdata(dev);  in stable_pages_required_show()
852 	bdi->dev = NULL;  in bdi_init()
934 	struct device *dev;  in bdi_register_va()  local
937 	if (bdi->dev)	/* The driver needs to use separate queues per device */  in bdi_register_va()
940 	dev = device_create_vargs(bdi_class, NULL, MKDEV(0, 0), bdi, fmt, args);  in bdi_register_va()
941 	if (IS_ERR(dev))  in bdi_register_va()
942 		return PTR_ERR(dev);  in bdi_register_va()
945 	bdi->dev = dev;  in bdi_register_va()
947 	bdi_debug_register(bdi, dev_name(dev));  in bdi_register_va()
1014 	if (bdi->dev) {  in bdi_unregister()
1016 		device_unregister(bdi->dev);  in bdi_unregister()
1017 		bdi->dev = NULL;  in bdi_unregister()
1033 	WARN_ON_ONCE(bdi->dev);  in release_bdi()