aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/block/acsi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/block/acsi.c')
-rw-r--r--drivers/block/acsi.c26
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/block/acsi.c b/drivers/block/acsi.c
index 5d2d649f7e8d..196c0ec9cd54 100644
--- a/drivers/block/acsi.c
+++ b/drivers/block/acsi.c
@@ -1079,6 +1079,19 @@ static void redo_acsi_request( void )
1079 * 1079 *
1080 ***********************************************************************/ 1080 ***********************************************************************/
1081 1081
1082static int acsi_getgeo(struct block_device *bdev, struct hd_geometry *geo)
1083{
1084 struct acsi_info_struct *aip = bdev->bd_disk->private_data;
1085
1086 /*
1087 * Just fake some geometry here, it's nonsense anyway
1088 * To make it easy, use Adaptec's usual 64/32 mapping
1089 */
1090 geo->heads = 64;
1091 geo->sectors = 32;
1092 geo->cylinders = aip->size >> 11;
1093 return 0;
1094}
1082 1095
1083static int acsi_ioctl( struct inode *inode, struct file *file, 1096static int acsi_ioctl( struct inode *inode, struct file *file,
1084 unsigned int cmd, unsigned long arg ) 1097 unsigned int cmd, unsigned long arg )
@@ -1086,18 +1099,6 @@ static int acsi_ioctl( struct inode *inode, struct file *file,
1086 struct gendisk *disk = inode->i_bdev->bd_disk; 1099 struct gendisk *disk = inode->i_bdev->bd_disk;
1087 struct acsi_info_struct *aip = disk->private_data; 1100 struct acsi_info_struct *aip = disk->private_data;
1088 switch (cmd) { 1101 switch (cmd) {
1089 case HDIO_GETGEO:
1090 /* HDIO_GETGEO is supported more for getting the partition's
1091 * start sector... */
1092 { struct hd_geometry *geo = (struct hd_geometry *)arg;
1093 /* just fake some geometry here, it's nonsense anyway; to make it
1094 * easy, use Adaptec's usual 64/32 mapping */
1095 put_user( 64, &geo->heads );
1096 put_user( 32, &geo->sectors );
1097 put_user( aip->size >> 11, &geo->cylinders );
1098 put_user(get_start_sect(inode->i_bdev), &geo->start);
1099 return 0;
1100 }
1101 case SCSI_IOCTL_GET_IDLUN: 1102 case SCSI_IOCTL_GET_IDLUN:
1102 /* SCSI compatible GET_IDLUN call to get target's ID and LUN number */ 1103 /* SCSI compatible GET_IDLUN call to get target's ID and LUN number */
1103 put_user( aip->target | (aip->lun << 8), 1104 put_user( aip->target | (aip->lun << 8),
@@ -1592,6 +1593,7 @@ static struct block_device_operations acsi_fops = {
1592 .open = acsi_open, 1593 .open = acsi_open,
1593 .release = acsi_release, 1594 .release = acsi_release,
1594 .ioctl = acsi_ioctl, 1595 .ioctl = acsi_ioctl,
1596 .getgeo = acsi_getgeo,
1595 .media_changed = acsi_media_change, 1597 .media_changed = acsi_media_change,
1596 .revalidate_disk= acsi_revalidate, 1598 .revalidate_disk= acsi_revalidate,
1597}; 1599};