return 0;
 }
 
-static int ace_ioctl(struct inode *inode, struct file *filp,
-                    unsigned int cmd, unsigned long arg)
+static int ace_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-       struct ace_device *ace = inode->i_bdev->bd_disk->private_data;
-       struct hd_geometry __user *geo = (struct hd_geometry __user *)arg;
-       struct hd_geometry g;
-       dev_dbg(ace->dev, "ace_ioctl()\n");
-
-       switch (cmd) {
-       case HDIO_GETGEO:
-               g.heads = ace->cf_id.heads;
-               g.sectors = ace->cf_id.sectors;
-               g.cylinders = ace->cf_id.cyls;
-               g.start = 0;
-               return copy_to_user(geo, &g, sizeof(g)) ? -EFAULT : 0;
+       struct ace_device *ace = bdev->bd_disk->private_data;
 
-       default:
-               return -ENOTTY;
-       }
-       return -ENOTTY;
+       dev_dbg(ace->dev, "ace_getgeo()\n");
+
+       geo->heads = ace->cf_id.heads;
+       geo->sectors = ace->cf_id.sectors;
+       geo->cylinders = ace->cf_id.cyls;
+
+       return 0;
 }
 
 static struct block_device_operations ace_fops = {
        .release = ace_release,
        .media_changed = ace_media_changed,
        .revalidate_disk = ace_revalidate_disk,
-       .ioctl = ace_ioctl,
+       .getgeo = ace_getgeo,
 };
 
 /* --------------------------------------------------------------------