[PATCH] switch sd

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

drivers/scsi/sd.c

@@ -609,17 +609,15 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
  *	In the latter case @inode and @filp carry an abridged amount
  *	of information as noted above.
  **/
-static int sd_open(struct inode *inode, struct file *filp)
+static int sd_open(struct block_device *bdev, fmode_t mode)
 {
-	struct gendisk *disk = inode->i_bdev->bd_disk;
-	struct scsi_disk *sdkp;
+	struct scsi_disk *sdkp = scsi_disk_get(bdev->bd_disk);
 	struct scsi_device *sdev;
 	int retval;
 
-	if (!(sdkp = scsi_disk_get(disk)))
+	if (!sdkp)
 		return -ENXIO;
 
-
 	SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_open\n"));
 
 	sdev = sdkp->device;
@@ -633,14 +631,13 @@ static int sd_open(struct inode *inode, struct file *filp)
 		goto error_out;
 
 	if (sdev->removable || sdkp->write_prot)
-		check_disk_change(inode->i_bdev);
+		check_disk_change(bdev);
 
 	/*
 	 * If the drive is empty, just let the open fail.
 	 */
 	retval = -ENOMEDIUM;
-	if (sdev->removable && !sdkp->media_present &&
-	    !(filp->f_mode & FMODE_NDELAY))
+	if (sdev->removable && !sdkp->media_present && !(mode & FMODE_NDELAY))
 		goto error_out;
 
 	/*
@@ -648,7 +645,7 @@ static int sd_open(struct inode *inode, struct file *filp)
 	 * if the user expects to be able to write to the thing.
 	 */
 	retval = -EROFS;
-	if (sdkp->write_prot && (filp->f_mode & FMODE_WRITE))
+	if (sdkp->write_prot && (mode & FMODE_WRITE))
 		goto error_out;
 
 	/*
@@ -684,9 +681,8 @@ static int sd_open(struct inode *inode, struct file *filp)
  *	Note: may block (uninterruptible) if error recovery is underway
  *	on this disk.
  **/
-static int sd_release(struct inode *inode, struct file *filp)
+static int sd_release(struct gendisk *disk, fmode_t mode)
 {
-	struct gendisk *disk = inode->i_bdev->bd_disk;
 	struct scsi_disk *sdkp = scsi_disk(disk);
 	struct scsi_device *sdev = sdkp->device;
 
@@ -743,10 +739,9 @@ static int sd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
  *	Note: most ioctls are forward onto the block subsystem or further
  *	down in the scsi subsystem.
  **/
-static int sd_ioctl(struct inode * inode, struct file * filp, 
+static int sd_ioctl(struct block_device *bdev, fmode_t mode,
 		    unsigned int cmd, unsigned long arg)
 {
-	struct block_device *bdev = inode->i_bdev;
 	struct gendisk *disk = bdev->bd_disk;
 	struct scsi_device *sdp = scsi_disk(disk)->device;
 	void __user *p = (void __user *)arg;
@@ -762,7 +757,7 @@ static int sd_ioctl(struct inode * inode, struct file * filp,
 	 * access to the device is prohibited.
 	 */
 	error = scsi_nonblockable_ioctl(sdp, cmd, p,
-					filp ? filp->f_flags & O_NDELAY : 0);
+					(mode & FMODE_NDELAY_NOW) != 0);
 	if (!scsi_block_when_processing_errors(sdp) || !error)
 		return error;
 
@@ -776,8 +771,7 @@ static int sd_ioctl(struct inode * inode, struct file * filp,
 		case SCSI_IOCTL_GET_BUS_NUMBER:
 			return scsi_ioctl(sdp, cmd, p);
 		default:
-			error = scsi_cmd_ioctl(disk->queue, disk,
-					filp ? filp->f_mode : 0, cmd, p);
+			error = scsi_cmd_ioctl(disk->queue, disk, mode, cmd, p);
 			if (error != -ENOTTY)
 				return error;
 	}
@@ -930,11 +924,10 @@ static void sd_rescan(struct device *dev)
  * This gets directly called from VFS. When the ioctl 
  * is not recognized we go back to the other translation paths. 
  */
-static long sd_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static int sd_compat_ioctl(struct block_device *bdev, fmode_t mode,
+			   unsigned int cmd, unsigned long arg)
 {
-	struct block_device *bdev = file->f_path.dentry->d_inode->i_bdev;
-	struct gendisk *disk = bdev->bd_disk;
-	struct scsi_device *sdev = scsi_disk(disk)->device;
+	struct scsi_device *sdev = scsi_disk(bdev->bd_disk)->device;
 
 	/*
 	 * If we are in the middle of error recovery, don't let anyone
@@ -962,12 +955,12 @@ static long sd_compat_ioctl(struct file *file, unsigned int cmd, unsigned long a
 
 static struct block_device_operations sd_fops = {
 	.owner			= THIS_MODULE,
-	.__open			= sd_open,
-	.__release		= sd_release,
-	.__ioctl			= sd_ioctl,
+	.open			= sd_open,
+	.release		= sd_release,
+	.locked_ioctl		= sd_ioctl,
 	.getgeo			= sd_getgeo,
 #ifdef CONFIG_COMPAT
-	.__compat_ioctl		= sd_compat_ioctl,
+	.compat_ioctl		= sd_compat_ioctl,
 #endif
 	.media_changed		= sd_media_changed,
 	.revalidate_disk	= sd_revalidate_disk,