put_int           220 block/ioctl.c  		return put_int(arg, bdev_read_only(bdev) != 0);
put_int           222 block/ioctl.c  		return put_int(arg, block_size(bdev));
put_int           224 block/ioctl.c  		return put_int(arg, bdev_hardsect_size(bdev));