linux-kernel - [PATCH 8/9] block: use bd

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Date:   Thu,  3 Sep 2020 07:41:03 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     dm-devel@...hat.com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        drbd-dev@...ts.linbit.com, linux-ide@...r.kernel.org,
        linux-raid@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-scsi@...r.kernel.org,
        target-devel@...r.kernel.org
Subject: [PATCH 8/9] block: use bd_partno in bdevname

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

Signed-off-by: Christoph Hellwig <hch@....de>
---
 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