diff options
Diffstat (limited to 'block/partitions/ibm.c')
| -rw-r--r-- | block/partitions/ibm.c | 24 |
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; } |