8  * We reserve minor number 0 for a control interface.  ioctl()s on this
9  * device are used to bind the other minor numbers to block devices.
58 	const int minor = iminor(inode);  in raw_open()  local
62 	if (minor == 0) {	/* It is the control device */  in raw_open()
78 	if (!raw_devices[minor].binding)  in raw_open()
80 	bdev = blkdev_get_by_dev(raw_devices[minor].binding,  in raw_open()
91 	if (++raw_devices[minor].inuse == 1)  in raw_open()
95 	raw_devices[minor].bdev = bdev;  in raw_open()
112 	const int minor= iminor(inode);  in raw_release()  local
116 	bdev = raw_devices[minor].bdev;  in raw_release()
117 	if (--raw_devices[minor].inuse == 0)  in raw_release()
136 static int bind_set(int number, u64 major, u64 minor)  in bind_set()  argument
138 	dev_t dev = MKDEV(major, minor);  in bind_set()
146 	if (MAJOR(dev) != major || MINOR(dev) != minor)  in bind_set()
162 	 * major/minor numbers make sense.  in bind_set()
224 		rq.block_minor = MINOR(dev);  in raw_ctl_ioctl()
266 		rq.block_minor = MINOR(dev);  in raw_ctl_compat_ioctl()