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Diffstat (limited to 'block/partitions/ibm.c')
-rw-r--r--block/partitions/ibm.c24
1 files changed, 18 insertions, 6 deletions
diff --git a/block/partitions/ibm.c b/block/partitions/ibm.c
index 073faa6a69b8..d6e18df9c53c 100644
--- a/block/partitions/ibm.c
+++ b/block/partitions/ibm.c
@@ -13,10 +13,11 @@
#include <asm/ebcdic.h>
#include <linux/uaccess.h>
#include <asm/vtoc.h>
+#include <linux/module.h>
+#include <linux/dasd_mod.h>
#include "check.h"
-
union label_t {
struct vtoc_volume_label_cdl vol;
struct vtoc_volume_label_ldl lnx;
@@ -288,7 +289,9 @@ static int find_cms1_partitions(struct parsed_partitions *state,
*/
int ibm_partition(struct parsed_partitions *state)
{
+ int (*fn)(struct gendisk *disk, dasd_information2_t *info);
struct block_device *bdev = state->bdev;
+ struct gendisk *disk = bdev->bd_disk;
int blocksize, res;
loff_t i_size, offset, size;
dasd_information2_t *info;
@@ -299,24 +302,31 @@ int ibm_partition(struct parsed_partitions *state)
union label_t *label;
res = 0;
+ if (!disk->fops->getgeo)
+ goto out_exit;
+ fn = symbol_get(dasd_biodasdinfo);
+ if (!fn)
+ goto out_exit;
blocksize = bdev_logical_block_size(bdev);
if (blocksize <= 0)
- goto out_exit;
+ goto out_symbol;
i_size = i_size_read(bdev->bd_inode);
if (i_size == 0)
- goto out_exit;
+ goto out_symbol;
info = kmalloc(sizeof(dasd_information2_t), GFP_KERNEL);
if (info == NULL)
- goto out_exit;
+ goto out_symbol;
geo = kmalloc(sizeof(struct hd_geometry), GFP_KERNEL);
if (geo == NULL)
goto out_nogeo;
label = kmalloc(sizeof(union label_t), GFP_KERNEL);
if (label == NULL)
goto out_nolab;
- if (ioctl_by_bdev(bdev, HDIO_GETGEO, (unsigned long)geo) != 0)
+ /* set start if not filled by getgeo function e.g. virtblk */
+ geo->start = get_start_sect(bdev);
+ if (disk->fops->getgeo(bdev, geo))
goto out_freeall;
- if (ioctl_by_bdev(bdev, BIODASDINFO2, (unsigned long)info) != 0) {
+ if (fn(disk, info)) {
kfree(info);
info = NULL;
}
@@ -359,6 +369,8 @@ out_nolab:
kfree(geo);
out_nogeo:
kfree(info);
+out_symbol:
+ symbol_put(dasd_biodasdinfo);
out_exit:
return res;
}