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path: root/drivers/block/paride/pd.c
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Diffstat (limited to 'drivers/block/paride/pd.c')
-rw-r--r--drivers/block/paride/pd.c34
1 files changed, 18 insertions, 16 deletions
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index fa49d62626ba..62d2464c12f2 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -747,32 +747,33 @@ static int pd_open(struct inode *inode, struct file *file)
747 return 0; 747 return 0;
748} 748}
749 749
750static int pd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
751{
752 struct pd_unit *disk = bdev->bd_disk->private_data;
753
754 if (disk->alt_geom) {
755 geo->heads = PD_LOG_HEADS;
756 geo->sectors = PD_LOG_SECTS;
757 geo->cylinders = disk->capacity / (geo->heads * geo->sectors);
758 } else {
759 geo->heads = disk->heads;
760 geo->sectors = disk->sectors;
761 geo->cylinders = disk->cylinders;
762 }
763
764 return 0;
765}
766
750static int pd_ioctl(struct inode *inode, struct file *file, 767static int pd_ioctl(struct inode *inode, struct file *file,
751 unsigned int cmd, unsigned long arg) 768 unsigned int cmd, unsigned long arg)
752{ 769{
753 struct pd_unit *disk = inode->i_bdev->bd_disk->private_data; 770 struct pd_unit *disk = inode->i_bdev->bd_disk->private_data;
754 struct hd_geometry __user *geo = (struct hd_geometry __user *) arg;
755 struct hd_geometry g;
756 771
757 switch (cmd) { 772 switch (cmd) {
758 case CDROMEJECT: 773 case CDROMEJECT:
759 if (disk->access == 1) 774 if (disk->access == 1)
760 pd_special_command(disk, pd_eject); 775 pd_special_command(disk, pd_eject);
761 return 0; 776 return 0;
762 case HDIO_GETGEO:
763 if (disk->alt_geom) {
764 g.heads = PD_LOG_HEADS;
765 g.sectors = PD_LOG_SECTS;
766 g.cylinders = disk->capacity / (g.heads * g.sectors);
767 } else {
768 g.heads = disk->heads;
769 g.sectors = disk->sectors;
770 g.cylinders = disk->cylinders;
771 }
772 g.start = get_start_sect(inode->i_bdev);
773 if (copy_to_user(geo, &g, sizeof(struct hd_geometry)))
774 return -EFAULT;
775 return 0;
776 default: 777 default:
777 return -EINVAL; 778 return -EINVAL;
778 } 779 }
@@ -815,6 +816,7 @@ static struct block_device_operations pd_fops = {
815 .open = pd_open, 816 .open = pd_open,
816 .release = pd_release, 817 .release = pd_release,
817 .ioctl = pd_ioctl, 818 .ioctl = pd_ioctl,
819 .getgeo = pd_getgeo,
818 .media_changed = pd_check_media, 820 .media_changed = pd_check_media,
819 .revalidate_disk= pd_revalidate 821 .revalidate_disk= pd_revalidate
820}; 822};