/* kernel glue structures */
 
-static int pcd_block_open(struct inode *inode, struct file *file)
+static int pcd_block_open(struct block_device *bdev, fmode_t mode)
 {
-       struct pcd_unit *cd = inode->i_bdev->bd_disk->private_data;
-       return cdrom_open(&cd->info, inode->i_bdev, file->f_mode);
+       struct pcd_unit *cd = bdev->bd_disk->private_data;
+       return cdrom_open(&cd->info, bdev, mode);
 }
 
-static int pcd_block_release(struct inode *inode, struct file *file)
+static int pcd_block_release(struct gendisk *disk, fmode_t mode)
 {
-       struct pcd_unit *cd = inode->i_bdev->bd_disk->private_data;
-       cdrom_release(&cd->info, file ? file->f_mode : 0);
+       struct pcd_unit *cd = disk->private_data;
+       cdrom_release(&cd->info, mode);
        return 0;
 }
 
-static int pcd_block_ioctl(struct inode *inode, struct file *file,
+static int pcd_block_ioctl(struct block_device *bdev, fmode_t mode,
                                unsigned cmd, unsigned long arg)
 {
-       struct pcd_unit *cd = inode->i_bdev->bd_disk->private_data;
-       return cdrom_ioctl(&cd->info, inode->i_bdev,
-                          file ? file->f_mode : 0, cmd, arg);
+       struct pcd_unit *cd = bdev->bd_disk->private_data;
+       return cdrom_ioctl(&cd->info, bdev, mode, cmd, arg);
 }
 
 static int pcd_block_media_changed(struct gendisk *disk)
 
 static struct block_device_operations pcd_bdops = {
        .owner          = THIS_MODULE,
-       .__open         = pcd_block_open,
-       .__release      = pcd_block_release,
-       .__ioctl                = pcd_block_ioctl,
+       .open           = pcd_block_open,
+       .release        = pcd_block_release,
+       .locked_ioctl   = pcd_block_ioctl,
        .media_changed  = pcd_block_media_changed,
 };