diff --git a/block/blk.h b/block/blk.h
index 21c441eb6773aefd8753c9c0af8a57bb226e2ecb..db6f82bbb6836164a656dad599012361e4c013fe 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -350,8 +350,8 @@ void blk_free_ext_minor(unsigned int minor);
 int bdev_add_partition(struct gendisk *disk, int partno, sector_t start,
 		sector_t length);
 int bdev_del_partition(struct gendisk *disk, int partno);
-int bdev_resize_partition(struct block_device *bdev, int partno,
-		sector_t start, sector_t length);
+int bdev_resize_partition(struct gendisk *disk, int partno, sector_t start,
+		sector_t length);
 
 int bio_add_hw_page(struct request_queue *q, struct bio *bio,
 		struct page *page, unsigned int len, unsigned int offset,
diff --git a/block/ioctl.c b/block/ioctl.c
index 8f57b276b2f1a4ecf52d2e3d4ec6db917c77f711..eb0491e90b9a0c07a552049a183537b189289005 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -43,7 +43,7 @@ static int blkpg_do_ioctl(struct block_device *bdev,
 			return -EINVAL;
 		return bdev_add_partition(disk, p.pno, start, length);
 	case BLKPG_RESIZE_PARTITION:
-		return bdev_resize_partition(bdev, p.pno, start, length);
+		return bdev_resize_partition(disk, p.pno, start, length);
 	default:
 		return -EINVAL;
 	}
diff --git a/block/partitions/core.c b/block/partitions/core.c
index 8c7abf0ee0ea79159cbd70a77d4190e3c2c0c3f8..9265936df77e47cce2846c96103936e98077181e 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -497,14 +497,14 @@ int bdev_del_partition(struct gendisk *disk, int partno)
 	return ret;
 }
 
-int bdev_resize_partition(struct block_device *bdev, int partno,
-		sector_t start, sector_t length)
+int bdev_resize_partition(struct gendisk *disk, int partno, sector_t start,
+		sector_t length)
 {
 	struct block_device *part = NULL;
 	int ret = -ENXIO;
 
-	mutex_lock(&bdev->bd_disk->open_mutex);
-	part = xa_load(&bdev->bd_disk->part_tbl, partno);
+	mutex_lock(&disk->open_mutex);
+	part = xa_load(&disk->part_tbl, partno);
 	if (!part)
 		goto out_unlock;
 
@@ -513,14 +513,14 @@ int bdev_resize_partition(struct block_device *bdev, int partno,
 		goto out_unlock;
 
 	ret = -EBUSY;
-	if (partition_overlaps(bdev->bd_disk, start, length, partno))
+	if (partition_overlaps(disk, start, length, partno))
 		goto out_unlock;
 
 	bdev_set_nr_sectors(part, length);
 
 	ret = 0;
 out_unlock:
-	mutex_unlock(&bdev->bd_disk->open_mutex);
+	mutex_unlock(&disk->open_mutex);
 	return ret;
 }