X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=drivers%2Fs390%2Fblock%2Fdasd_genhd.c;h=aee6565aaf983fda86bfaaf483d2aaeb9ddfac9a;hb=6450f65168bcf3c03b5fb44c2fe96682c0d3086b;hp=d163632101d2da8ed3535092da67d9298e340ae4;hpb=0612ec48762bf8712db1925b2e67246d2237ebab;p=cascardo%2Flinux.git

diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index d163632101d2..aee6565aaf98 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -25,14 +25,15 @@
 /*
  * Allocate and register gendisk structure for device.
  */
-int
-dasd_gendisk_alloc(struct dasd_device *device)
+int dasd_gendisk_alloc(struct dasd_block *block)
 {
 	struct gendisk *gdp;
+	struct dasd_device *base;
 	int len;
 
 	/* Make sure the minor for this device exists. */
-	if (device->devindex >= DASD_PER_MAJOR)
+	base = block->base;
+	if (base->devindex >= DASD_PER_MAJOR)
 		return -EBUSY;
 
 	gdp = alloc_disk(1 << DASD_PARTN_BITS);
@@ -41,9 +42,9 @@ dasd_gendisk_alloc(struct dasd_device *device)
 
 	/* Initialize gendisk structure. */
 	gdp->major = DASD_MAJOR;
-	gdp->first_minor = device->devindex << DASD_PARTN_BITS;
+	gdp->first_minor = base->devindex << DASD_PARTN_BITS;
 	gdp->fops = &dasd_device_operations;
-	gdp->driverfs_dev = &device->cdev->dev;
+	gdp->driverfs_dev = &base->cdev->dev;
 
 	/*
 	 * Set device name.
@@ -53,53 +54,51 @@ dasd_gendisk_alloc(struct dasd_device *device)
 	 *   dasdaaaa - dasdzzzz : 456976 devices, added up = 475252
 	 */
 	len = sprintf(gdp->disk_name, "dasd");
-	if (device->devindex > 25) {
-	        if (device->devindex > 701) {
-		        if (device->devindex > 18277)
+	if (base->devindex > 25) {
+		if (base->devindex > 701) {
+			if (base->devindex > 18277)
 			        len += sprintf(gdp->disk_name + len, "%c",
-					       'a'+(((device->devindex-18278)
+					       'a'+(((base->devindex-18278)
 						     /17576)%26));
 			len += sprintf(gdp->disk_name + len, "%c",
-				       'a'+(((device->devindex-702)/676)%26));
+				       'a'+(((base->devindex-702)/676)%26));
 		}
 		len += sprintf(gdp->disk_name + len, "%c",
-			       'a'+(((device->devindex-26)/26)%26));
+			       'a'+(((base->devindex-26)/26)%26));
 	}
-	len += sprintf(gdp->disk_name + len, "%c", 'a'+(device->devindex%26));
+	len += sprintf(gdp->disk_name + len, "%c", 'a'+(base->devindex%26));
 
-	if (device->features & DASD_FEATURE_READONLY)
+	if (block->base->features & DASD_FEATURE_READONLY)
 		set_disk_ro(gdp, 1);
-	gdp->private_data = device;
-	gdp->queue = device->request_queue;
-	device->gdp = gdp;
-	set_capacity(device->gdp, 0);
-	add_disk(device->gdp);
+	gdp->private_data = block;
+	gdp->queue = block->request_queue;
+	block->gdp = gdp;
+	set_capacity(block->gdp, 0);
+	add_disk(block->gdp);
 	return 0;
 }
 
 /*
  * Unregister and free gendisk structure for device.
  */
-void
-dasd_gendisk_free(struct dasd_device *device)
+void dasd_gendisk_free(struct dasd_block *block)
 {
-	if (device->gdp) {
-		del_gendisk(device->gdp);
-		device->gdp->queue = NULL;
-		put_disk(device->gdp);
-		device->gdp = NULL;
+	if (block->gdp) {
+		del_gendisk(block->gdp);
+		block->gdp->queue = NULL;
+		put_disk(block->gdp);
+		block->gdp = NULL;
 	}
 }
 
 /*
  * Trigger a partition detection.
  */
-int
-dasd_scan_partitions(struct dasd_device * device)
+int dasd_scan_partitions(struct dasd_block *block)
 {
 	struct block_device *bdev;
 
-	bdev = bdget_disk(device->gdp, 0);
+	bdev = bdget_disk(block->gdp, 0);
 	if (!bdev || blkdev_get(bdev, FMODE_READ, 1) < 0)
 		return -ENODEV;
 	/*
@@ -117,7 +116,7 @@ dasd_scan_partitions(struct dasd_device * device)
 	 * is why the assignment to device->bdev is done AFTER
 	 * the BLKRRPART ioctl.
 	 */
-	device->bdev = bdev;
+	block->bdev = bdev;
 	return 0;
 }
 
@@ -125,8 +124,7 @@ dasd_scan_partitions(struct dasd_device * device)
  * Remove all inodes in the system for a device, delete the
  * partitions and make device unusable by setting its size to zero.
  */
-void
-dasd_destroy_partitions(struct dasd_device * device)
+void dasd_destroy_partitions(struct dasd_block *block)
 {
 	/* The two structs have 168/176 byte on 31/64 bit. */
 	struct blkpg_partition bpart;
@@ -137,8 +135,8 @@ dasd_destroy_partitions(struct dasd_device * device)
 	 * Get the bdev pointer from the device structure and clear
 	 * device->bdev to lower the offline open_count limit again.
 	 */
-	bdev = device->bdev;
-	device->bdev = NULL;
+	bdev = block->bdev;
+	block->bdev = NULL;
 
 	/*
 	 * See fs/partition/check.c:delete_partition
@@ -147,19 +145,18 @@ dasd_destroy_partitions(struct dasd_device * device)
 	 */
 	memset(&bpart, 0, sizeof(struct blkpg_partition));
 	memset(&barg, 0, sizeof(struct blkpg_ioctl_arg));
-	barg.data = (void __user *) &bpart;
+	barg.data = (void __force __user *) &bpart;
 	barg.op = BLKPG_DEL_PARTITION;
-	for (bpart.pno = device->gdp->minors - 1; bpart.pno > 0; bpart.pno--)
+	for (bpart.pno = block->gdp->minors - 1; bpart.pno > 0; bpart.pno--)
 		ioctl_by_bdev(bdev, BLKPG, (unsigned long) &barg);
 
-	invalidate_partition(device->gdp, 0);
+	invalidate_partition(block->gdp, 0);
 	/* Matching blkdev_put to the blkdev_get in dasd_scan_partitions. */
 	blkdev_put(bdev);
-	set_capacity(device->gdp, 0);
+	set_capacity(block->gdp, 0);
 }
 
-int
-dasd_gendisk_init(void)
+int dasd_gendisk_init(void)
 {
 	int rc;
 
@@ -174,8 +171,7 @@ dasd_gendisk_init(void)
 	return 0;
 }
 
-void
-dasd_gendisk_exit(void)
+void dasd_gendisk_exit(void)
 {
 	unregister_blkdev(DASD_MAJOR, "dasd");
 }