[PATCH] switch tape_block

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

drivers/s390/char/tape_block.c

@@ -43,18 +43,18 @@
 /*
  * file operation structure for tape block frontend
  */
-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,
 				unsigned long);
 static int tapeblock_medium_changed(struct gendisk *);
 static int tapeblock_revalidate_disk(struct gendisk *);
 
 static struct block_device_operations tapeblock_fops = {
 	.owner		 = THIS_MODULE,
-	.__open		 = tapeblock_open,
-	.__release	 = tapeblock_release,
-	.__ioctl           = tapeblock_ioctl,
+	.open		 = tapeblock_open,
+	.release	 = tapeblock_release,
+	.locked_ioctl           = tapeblock_ioctl,
 	.media_changed   = tapeblock_medium_changed,
 	.revalidate_disk = tapeblock_revalidate_disk,
 };
@@ -364,13 +364,12 @@ tapeblock_medium_changed(struct gendisk *disk)
  * Block frontend tape device open function.
  */
 static int
-tapeblock_open(struct inode *inode, struct file *filp)
+tapeblock_open(struct block_device *bdev, fmode_t mode)
 {
-	struct gendisk *	disk;
+	struct gendisk *	disk = bdev->bd_disk;
 	struct tape_device *	device;
 	int			rc;
 
-	disk   = inode->i_bdev->bd_disk;
 	device = tape_get_device_reference(disk->private_data);
 
 	if (device->required_tapemarks) {
@@ -410,9 +409,8 @@ release:
  *       we just get the pointer here and release the reference.
  */
 static int
-tapeblock_release(struct inode *inode, struct file *filp)
+tapeblock_release(struct gendisk *disk, fmode_t mode)
 {
-	struct gendisk *disk = inode->i_bdev->bd_disk;
 	struct tape_device *device = disk->private_data;
 
 	tape_state_set(device, TS_IN_USE);
@@ -427,22 +425,21 @@ tapeblock_release(struct inode *inode, struct file *filp)
  */
 static int
 tapeblock_ioctl(
-	struct inode *		inode,
-	struct file *		file,
+	struct block_device *	bdev,
+	fmode_t			mode,
 	unsigned int		command,
 	unsigned long		arg
 ) {
 	int rc;
 	int minor;
-	struct gendisk *disk;
+	struct gendisk *disk = bdev->bd_disk;
 	struct tape_device *device;
 
 	rc     = 0;
-	disk   = inode->i_bdev->bd_disk;
 	BUG_ON(!disk);
 	device = disk->private_data;
 	BUG_ON(!device);
-	minor  = iminor(inode);
+	minor  = MINOR(bdev->bd_dev);
 
 	DBF_LH(6, "tapeblock_ioctl(0x%0x)\n", command);
 	DBF_LH(6, "device = %d:%d\n", tapeblock_major, minor);