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path: root/drivers/block/cciss.c
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Diffstat (limited to 'drivers/block/cciss.c')
-rw-r--r--drivers/block/cciss.c31
1 files changed, 16 insertions, 15 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index d2815b7a9150..bdb9c2717d40 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -153,6 +153,7 @@ static int cciss_open(struct inode *inode, struct file *filep);
153static int cciss_release(struct inode *inode, struct file *filep); 153static int cciss_release(struct inode *inode, struct file *filep);
154static int cciss_ioctl(struct inode *inode, struct file *filep, 154static int cciss_ioctl(struct inode *inode, struct file *filep,
155 unsigned int cmd, unsigned long arg); 155 unsigned int cmd, unsigned long arg);
156static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
156 157
157static int revalidate_allvol(ctlr_info_t *host); 158static int revalidate_allvol(ctlr_info_t *host);
158static int cciss_revalidate(struct gendisk *disk); 159static int cciss_revalidate(struct gendisk *disk);
@@ -194,6 +195,7 @@ static struct block_device_operations cciss_fops = {
194 .open = cciss_open, 195 .open = cciss_open,
195 .release = cciss_release, 196 .release = cciss_release,
196 .ioctl = cciss_ioctl, 197 .ioctl = cciss_ioctl,
198 .getgeo = cciss_getgeo,
197#ifdef CONFIG_COMPAT 199#ifdef CONFIG_COMPAT
198 .compat_ioctl = cciss_compat_ioctl, 200 .compat_ioctl = cciss_compat_ioctl,
199#endif 201#endif
@@ -633,6 +635,20 @@ static int cciss_ioctl32_big_passthru(struct file *file, unsigned cmd, unsigned
633 return err; 635 return err;
634} 636}
635#endif 637#endif
638
639static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo)
640{
641 drive_info_struct *drv = get_drv(bdev->bd_disk);
642
643 if (!drv->cylinders)
644 return -ENXIO;
645
646 geo->heads = drv->heads;
647 geo->sectors = drv->sectors;
648 geo->cylinders = drv->cylinders;
649 return 0;
650}
651
636/* 652/*
637 * ioctl 653 * ioctl
638 */ 654 */
@@ -651,21 +667,6 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
651#endif /* CCISS_DEBUG */ 667#endif /* CCISS_DEBUG */
652 668
653 switch(cmd) { 669 switch(cmd) {
654 case HDIO_GETGEO:
655 {
656 struct hd_geometry driver_geo;
657 if (drv->cylinders) {
658 driver_geo.heads = drv->heads;
659 driver_geo.sectors = drv->sectors;
660 driver_geo.cylinders = drv->cylinders;
661 } else
662 return -ENXIO;
663 driver_geo.start= get_start_sect(inode->i_bdev);
664 if (copy_to_user(argp, &driver_geo, sizeof(struct hd_geometry)))
665 return -EFAULT;
666 return(0);
667 }
668
669 case CCISS_GETPCIINFO: 670 case CCISS_GETPCIINFO:
670 { 671 {
671 cciss_pci_info_struct pciinfo; 672 cciss_pci_info_struct pciinfo;