fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / drivers / s390 / block / dasd_genhd.c

diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index 44b6e73..d163632 100644 (file)
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -9,10 +9,8 @@
  *
  * gendisk related functions for the dasd driver.
  *
- * $Revision: 1.46 $
  */
 
-#include <linux/config.h>
 #include <linux/interrupt.h>
 #include <linux/fs.h>
 #include <linux/blkpg.h>
@@ -69,9 +67,7 @@ dasd_gendisk_alloc(struct dasd_device *device)
        }
        len += sprintf(gdp->disk_name + len, "%c", 'a'+(device->devindex%26));
 
-       sprintf(gdp->devfs_name, "dasd/%s", device->cdev->dev.bus_id);
-
-       if (test_bit(DASD_FLAG_RO, &device->flags))
+       if (device->features & DASD_FEATURE_READONLY)
                set_disk_ro(gdp, 1);
        gdp->private_data = device;
        gdp->queue = device->request_queue;
@@ -87,10 +83,12 @@ dasd_gendisk_alloc(struct dasd_device *device)
 void
 dasd_gendisk_free(struct dasd_device *device)
 {
-       del_gendisk(device->gdp);
-       device->gdp->queue = 0;
-       put_disk(device->gdp);
-       device->gdp = 0;
+       if (device->gdp) {
+               del_gendisk(device->gdp);
+               device->gdp->queue = NULL;
+               put_disk(device->gdp);
+               device->gdp = NULL;
+       }
 }
 
 /*
@@ -101,8 +99,6 @@ dasd_scan_partitions(struct dasd_device * device)
 {
        struct block_device *bdev;
 
-       /* Make the disk known. */
-       set_capacity(device->gdp, device->blocks << device->s2b_shift);
        bdev = bdget_disk(device->gdp, 0);
        if (!bdev || blkdev_get(bdev, FMODE_READ, 1) < 0)
                return -ENODEV;
@@ -142,18 +138,19 @@ dasd_destroy_partitions(struct dasd_device * device)
         * device->bdev to lower the offline open_count limit again.
         */
        bdev = device->bdev;
-       device->bdev = 0;
+       device->bdev = NULL;
 
        /*
         * See fs/partition/check.c:delete_partition
         * Can't call delete_partitions directly. Use ioctl.
         * The ioctl also does locking and invalidation.
         */
-       memset(&bpart, sizeof(struct blkpg_partition), 0);
-       memset(&barg, sizeof(struct blkpg_ioctl_arg), 0);
-       barg.data = &bpart;
+       memset(&bpart, 0, sizeof(struct blkpg_partition));
+       memset(&barg, 0, sizeof(struct blkpg_ioctl_arg));
+       barg.data = (void __user *) &bpart;
+       barg.op = BLKPG_DEL_PARTITION;
        for (bpart.pno = device->gdp->minors - 1; bpart.pno > 0; bpart.pno--)
-               ioctl_by_bdev(bdev, BLKPG_DEL_PARTITION, (unsigned long) &barg);
+               ioctl_by_bdev(bdev, BLKPG, (unsigned long) &barg);
 
        invalidate_partition(device->gdp, 0);
        /* Matching blkdev_put to the blkdev_get in dasd_scan_partitions. */