[PATCH 8/9] block: use bd_partno in bdevname

[Christoph Hellwig]

No need to go through the hd_struct to find the partition number.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 block/genhd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/genhd.c b/block/genhd.c
index 081f1039d9367f..771aa56b1a8c3d 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -85,7 +85,7 @@ char *disk_name(struct gendisk *hd, int partno, char *buf)
 
 const char *bdevname(struct block_device *bdev, char *buf)
 {
-	return disk_name(bdev->bd_disk, bdev->bd_part->partno, buf);
+	return disk_name(bdev->bd_disk, bdev->bd_partno, buf);
 }
 EXPORT_SYMBOL(bdevname);
 
-- 
2.28.0