[PATCH] switch cdrom_{open,release,ioctl} to sane APIs

... convert to it in callers
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

drivers/block/paride/pcd.c

@@ -226,20 +226,22 @@ static int pcd_warned;		/* Have we logged a phase warning ? */
 static int pcd_block_open(struct inode *inode, struct file *file)
 {
 	struct pcd_unit *cd = inode->i_bdev->bd_disk->private_data;
-	return cdrom_open(&cd->info, inode, file);
+	return cdrom_open(&cd->info, inode->i_bdev, file->f_mode);
 }
 
 static int pcd_block_release(struct inode *inode, struct file *file)
 {
 	struct pcd_unit *cd = inode->i_bdev->bd_disk->private_data;
-	return cdrom_release(&cd->info, file);
+	cdrom_release(&cd->info, file ? file->f_mode : 0);
+	return 0;
 }
 
 static int pcd_block_ioctl(struct inode *inode, struct file *file,
 				unsigned cmd, unsigned long arg)
 {
 	struct pcd_unit *cd = inode->i_bdev->bd_disk->private_data;
-	return cdrom_ioctl(file, &cd->info, inode, cmd, arg);
+	return cdrom_ioctl(&cd->info, inode->i_bdev,
+			   file ? file->f_mode : 0, cmd, arg);
 }
 
 static int pcd_block_media_changed(struct gendisk *disk)

drivers/cdrom/cdrom.c

@@ -973,7 +973,7 @@ static int cdrom_close_write(struct cdrom_device_info *cdi)
  * is in their own interest: device control becomes a lot easier
  * this way.
  */
-int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip, struct file *fp)
+int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev, fmode_t mode)
 {
 	int ret;
 
@@ -982,14 +982,14 @@ int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip, struct file *fp)
 	/* if this was a O_NONBLOCK open and we should honor the flags,
 	 * do a quick open without drive/disc integrity checks. */
 	cdi->use_count++;
-	if ((fp->f_mode & FMODE_NDELAY) && (cdi->options & CDO_USE_FFLAGS)) {
+	if ((mode & FMODE_NDELAY) && (cdi->options & CDO_USE_FFLAGS)) {
 		ret = cdi->ops->open(cdi, 1);
 	} else {
 		ret = open_for_data(cdi);
 		if (ret)
 			goto err;
 		cdrom_mmc3_profile(cdi);
-		if (fp->f_mode & FMODE_WRITE) {
+		if (mode & FMODE_WRITE) {
 			ret = -EROFS;
 			if (cdrom_open_write(cdi))
 				goto err_release;
@@ -1007,7 +1007,7 @@ int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip, struct file *fp)
 			cdi->name, cdi->use_count);
 	/* Do this on open.  Don't wait for mount, because they might
 	    not be mounting, but opening with O_NONBLOCK */
-	check_disk_change(ip->i_bdev);
+	check_disk_change(bdev);
 	return 0;
 err_release:
 	if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) {
@@ -1184,7 +1184,7 @@ static int check_for_audio_disc(struct cdrom_device_info * cdi,
 	return 0;
 }
 
-int cdrom_release(struct cdrom_device_info *cdi, struct file *fp)
+void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode)
 {
 	struct cdrom_device_ops *cdo = cdi->ops;
 	int opened_for_data;
@@ -1205,7 +1205,7 @@ int cdrom_release(struct cdrom_device_info *cdi, struct file *fp)
 	}
 
 	opened_for_data = !(cdi->options & CDO_USE_FFLAGS) ||
-		!(fp && fp->f_mode & FMODE_NDELAY);
+		!(mode & FMODE_NDELAY);
 
 	/*
 	 * flush cache on last write release
@@ -1219,7 +1219,6 @@ int cdrom_release(struct cdrom_device_info *cdi, struct file *fp)
 		    cdi->options & CDO_AUTO_EJECT && CDROM_CAN(CDC_OPEN_TRAY))
 			cdo->tray_move(cdi, 1);
 	}
-	return 0;
 }
 
 static int cdrom_read_mech_status(struct cdrom_device_info *cdi, 
@@ -2662,17 +2661,17 @@ static int cdrom_ioctl_audioctl(struct cdrom_device_info *cdi,
  * these days.
  * ATAPI / SCSI specific code now mainly resides in mmc_ioctl().
  */
-int cdrom_ioctl(struct file * file, struct cdrom_device_info *cdi,
-		struct inode *ip, unsigned int cmd, unsigned long arg)
+int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev,
+		fmode_t mode, unsigned int cmd, unsigned long arg)
 {
 	void __user *argp = (void __user *)arg;
 	int ret;
-	struct gendisk *disk = ip->i_bdev->bd_disk;
+	struct gendisk *disk = bdev->bd_disk;
 
 	/*
 	 * Try the generic SCSI command ioctl's first.
 	 */
-	ret = scsi_cmd_ioctl(disk->queue, disk, file ? file->f_mode : 0, cmd, argp);
+	ret = scsi_cmd_ioctl(disk->queue, disk, mode, cmd, argp);
 	if (ret != -ENOTTY)
 		return ret;
 
@@ -2696,7 +2695,7 @@ int cdrom_ioctl(struct file * file, struct cdrom_device_info *cdi,
 	case CDROM_SELECT_DISC:
 		return cdrom_ioctl_select_disc(cdi, arg);
 	case CDROMRESET:
-		return cdrom_ioctl_reset(cdi, ip->i_bdev);
+		return cdrom_ioctl_reset(cdi, bdev);
 	case CDROM_LOCKDOOR:
 		return cdrom_ioctl_lock_door(cdi, arg);
 	case CDROM_DEBUG:

drivers/cdrom/gdrom.c

@@ -492,12 +492,12 @@ static struct cdrom_device_ops gdrom_ops = {
 
 static int gdrom_bdops_open(struct inode *inode, struct file *file)
 {
-	return cdrom_open(gd.cd_info, inode, file);
+	return cdrom_open(gd.cd_info, inode->i_bdev, file->f_mode);
 }
 
 static int gdrom_bdops_release(struct inode *inode, struct file *file)
 {
-	return cdrom_release(gd.cd_info, file);
+	return cdrom_release(gd.cd_info, file ? file->f_mode : 0);
 }
 
 static int gdrom_bdops_mediachanged(struct gendisk *disk)
@@ -508,7 +508,8 @@ static int gdrom_bdops_mediachanged(struct gendisk *disk)
 static int gdrom_bdops_ioctl(struct inode *inode, struct file *file,
 	unsigned cmd, unsigned long arg)
 {
-	return cdrom_ioctl(file, gd.cd_info, inode, cmd, arg);
+	return cdrom_ioctl(gd.cd_info, inode->i_bdev,
+			file ? file->f_mode : 0, cmd, arg);
 }
 
 static struct block_device_operations gdrom_bdops = {

drivers/cdrom/viocd.c

@@ -154,20 +154,22 @@ static const struct file_operations proc_viocd_operations = {
 static int viocd_blk_open(struct inode *inode, struct file *file)
 {
 	struct disk_info *di = inode->i_bdev->bd_disk->private_data;
-	return cdrom_open(&di->viocd_info, inode, file);
+	return cdrom_open(&di->viocd_info, inode->i_bdev, file->f_mode);
 }
 
 static int viocd_blk_release(struct inode *inode, struct file *file)
 {
 	struct disk_info *di = inode->i_bdev->bd_disk->private_data;
-	return cdrom_release(&di->viocd_info, file);
+	cdrom_release(&di->viocd_info, file ? file->f_mode : 0);
+	return 0;
 }
 
 static int viocd_blk_ioctl(struct inode *inode, struct file *file,
 		unsigned cmd, unsigned long arg)
 {
 	struct disk_info *di = inode->i_bdev->bd_disk->private_data;
-	return cdrom_ioctl(file, &di->viocd_info, inode, cmd, arg);
+	return cdrom_ioctl(&di->viocd_info, inode->i_bdev,
+			   file ? file->f_mode : 0, cmd, arg);
 }
 
 static int viocd_blk_media_changed(struct gendisk *disk)

drivers/ide/ide-cd.c

@@ -2099,7 +2099,7 @@ static int idecd_open(struct inode *inode, struct file *file)
 	if (!info)
 		return -ENXIO;
 
-	rc = cdrom_open(&info->devinfo, inode, file);
+	rc = cdrom_open(&info->devinfo, inode->i_bdev, file->f_mode);
 
 	if (rc < 0)
 		ide_cd_put(info);
@@ -2112,7 +2112,7 @@ static int idecd_release(struct inode *inode, struct file *file)
 	struct gendisk *disk = inode->i_bdev->bd_disk;
 	struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
 
-	cdrom_release(&info->devinfo, file);
+	cdrom_release(&info->devinfo, file ? file->f_mode : 0);
 
 	ide_cd_put(info);
 
@@ -2176,7 +2176,8 @@ static int idecd_ioctl(struct inode *inode, struct file *file,
 
 	err = generic_ide_ioctl(info->drive, bdev, cmd, arg);
 	if (err == -EINVAL)
-		err = cdrom_ioctl(file, &info->devinfo, inode, cmd, arg);
+		err = cdrom_ioctl(&info->devinfo, bdev,
+				  file ? file->f_mode : 0, cmd, arg);
 
 	return err;
 }

drivers/scsi/sr.c

@@ -480,7 +480,7 @@ static int sr_block_open(struct inode *inode, struct file *file)
 	if(!(cd = scsi_cd_get(disk)))
 		return -ENXIO;
 
-	if((ret = cdrom_open(&cd->cdi, inode, file)) != 0)
+	if((ret = cdrom_open(&cd->cdi, inode->i_bdev, file->f_mode)) != 0)
 		scsi_cd_put(cd);
 
 	return ret;
@@ -488,12 +488,8 @@ static int sr_block_open(struct inode *inode, struct file *file)
 
 static int sr_block_release(struct inode *inode, struct file *file)
 {
-	int ret;
 	struct scsi_cd *cd = scsi_cd(inode->i_bdev->bd_disk);
-	ret = cdrom_release(&cd->cdi, file);
-	if(ret)
-		return ret;
-	
+	cdrom_release(&cd->cdi, file ? file->f_mode : 0);
 	scsi_cd_put(cd);
 
 	return 0;
@@ -517,7 +513,8 @@ static int sr_block_ioctl(struct inode *inode, struct file *file, unsigned cmd,
 		return scsi_ioctl(sdev, cmd, argp);
 	}
 
-	ret = cdrom_ioctl(file, &cd->cdi, inode, cmd, arg);
+	ret = cdrom_ioctl(&cd->cdi, inode->i_bdev,
+			  file ? file->f_mode : 0, cmd, arg);
 	if (ret != -ENOSYS)
 		return ret;
 

include/linux/cdrom.h

@@ -987,11 +987,11 @@ struct cdrom_device_ops {
 };
 
 /* the general block_device operations structure: */
-extern int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip,
-			struct file *fp);
-extern int cdrom_release(struct cdrom_device_info *cdi, struct file *fp);
-extern int cdrom_ioctl(struct file *file, struct cdrom_device_info *cdi,
-		struct inode *ip, unsigned int cmd, unsigned long arg);
+extern int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev,
+			fmode_t mode);
+extern void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode);
+extern int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev,
+		       fmode_t mode, unsigned int cmd, unsigned long arg);
 extern int cdrom_media_changed(struct cdrom_device_info *);
 
 extern int register_cdrom(struct cdrom_device_info *cdi);