bdi_class 23 mm/backing-dev.c static struct class *bdi_class; bdi_class 226 mm/backing-dev.c bdi_class = class_create(THIS_MODULE, "bdi"); bdi_class 227 mm/backing-dev.c if (IS_ERR(bdi_class)) bdi_class 228 mm/backing-dev.c return PTR_ERR(bdi_class); bdi_class 230 mm/backing-dev.c bdi_class->dev_groups = bdi_dev_groups; bdi_class 942 mm/backing-dev.c dev = device_create(bdi_class, NULL, MKDEV(0, 0), bdi, bdi->dev_name);