summaryrefslogtreecommitdiff
path: root/drivers/md/md.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md/md.c')
-rw-r--r--drivers/md/md.c30
1 files changed, 11 insertions, 19 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 1b76fb29fb7..e423a16ba3c 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3598,12 +3598,21 @@ static int set_disk_faulty(mddev_t *mddev, dev_t dev)
return 0;
}
+static int md_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+ mddev_t *mddev = bdev->bd_disk->private_data;
+
+ geo->heads = 2;
+ geo->sectors = 4;
+ geo->cylinders = get_capacity(mddev->gendisk) / 8;
+ return 0;
+}
+
static int md_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int err = 0;
void __user *argp = (void __user *)arg;
- struct hd_geometry __user *loc = argp;
mddev_t *mddev = NULL;
if (!capable(CAP_SYS_ADMIN))
@@ -3765,24 +3774,6 @@ static int md_ioctl(struct inode *inode, struct file *file,
* 4 sectors (with a BIG number of cylinders...). This drives
* dosfs just mad... ;-)
*/
- case HDIO_GETGEO:
- if (!loc) {
- err = -EINVAL;
- goto abort_unlock;
- }
- err = put_user (2, (char __user *) &loc->heads);
- if (err)
- goto abort_unlock;
- err = put_user (4, (char __user *) &loc->sectors);
- if (err)
- goto abort_unlock;
- err = put_user(get_capacity(mddev->gendisk)/8,
- (short __user *) &loc->cylinders);
- if (err)
- goto abort_unlock;
- err = put_user (get_start_sect(inode->i_bdev),
- (long __user *) &loc->start);
- goto done_unlock;
}
/*
@@ -3911,6 +3902,7 @@ static struct block_device_operations md_fops =
.open = md_open,
.release = md_release,
.ioctl = md_ioctl,
+ .getgeo = md_getgeo,
.media_changed = md_media_changed,
.revalidate_disk= md_revalidate,
};