block/raw-posix: avoid bogus fixup for cylinders on DASD disks
large volume DASD that have > 64k cylinders do claim to have
0xFFFE cylinders as special value in the old 16 bit field. We
want to pass this "token" along to the guest, instead of
calculating the real number. Otherwise qemu might fail with
"cyls must be between 1 and 65535"
Cc: qemu-stable@nongnu.org
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 076d070..816bdf7 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -779,7 +779,6 @@
{
BDRVRawState *s = bs->opaque;
struct hd_geometry ioctl_geo = {0};
- uint32_t blksize;
/* If DASD, get its geometry */
if (check_for_dasd(s->fd) < 0) {
@@ -799,12 +798,6 @@
}
geo->heads = ioctl_geo.heads;
geo->sectors = ioctl_geo.sectors;
- if (!probe_physical_blocksize(s->fd, &blksize)) {
- /* overwrite cyls: HDIO_GETGEO result is incorrect for big drives */
- geo->cylinders = bdrv_nb_sectors(bs) / (blksize / BDRV_SECTOR_SIZE)
- / (geo->heads * geo->sectors);
- return 0;
- }
geo->cylinders = ioctl_geo.cylinders;
return 0;
