-static int tapeblock_open(struct inode *, struct file *);
-static int tapeblock_release(struct inode *, struct file *);
-static int tapeblock_ioctl(struct inode *, struct file *, unsigned int,
+static int tapeblock_open(struct block_device *, fmode_t);
+static int tapeblock_release(struct gendisk *, fmode_t);
+static int tapeblock_ioctl(struct block_device *, fmode_t, unsigned int,