dm-zoned: remove the ->name field in struct dmz_dev

Just use the %pg format specifier to print the block device name
directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

drivers/md/dm-zoned-metadata.c

@@ -1101,8 +1101,8 @@ static int dmz_check_sb(struct dmz_metadata *zmd, struct dmz_sb *dsb,
  */
 static int dmz_read_sb(struct dmz_metadata *zmd, struct dmz_sb *sb, int set)
 {
-	dmz_zmd_debug(zmd, "read superblock set %d dev %s block %llu",
-		      set, sb->dev->name, sb->block);
+	dmz_zmd_debug(zmd, "read superblock set %d dev %pg block %llu",
+		      set, sb->dev->bdev, sb->block);
 
 	return dmz_rdwr_block(sb->dev, REQ_OP_READ,
 			      sb->block, sb->mblk->page);

drivers/md/dm-zoned-target.c

@@ -730,7 +730,6 @@ static int dmz_get_zoned_device(struct dm_target *ti, char *path,
 	}
 	dev->bdev = bdev;
 	dev->dev_idx = idx;
-	(void)bdevname(dev->bdev, dev->name);
 
 	dev->capacity = bdev_nr_sectors(bdev);
 	if (ti->begin) {

drivers/md/dm-zoned.h

@@ -56,7 +56,6 @@ struct dmz_dev {
 	struct dmz_metadata	*metadata;
 	struct dmz_reclaim	*reclaim;
 
-	char			name[BDEVNAME_SIZE];
 	uuid_t			uuid;
 
 	sector_t		capacity;
@@ -176,16 +175,16 @@ enum {
  * Message functions.
  */
 #define dmz_dev_info(dev, format, args...)	\
-	DMINFO("(%s): " format, (dev)->name, ## args)
+	DMINFO("(%pg): " format, (dev)->bdev, ## args)
 
 #define dmz_dev_err(dev, format, args...)	\
-	DMERR("(%s): " format, (dev)->name, ## args)
+	DMERR("(%pg): " format, (dev)->bdev, ## args)
 
 #define dmz_dev_warn(dev, format, args...)	\
-	DMWARN("(%s): " format, (dev)->name, ## args)
+	DMWARN("(%pg): " format, (dev)->bdev, ## args)
 
 #define dmz_dev_debug(dev, format, args...)	\
-	DMDEBUG("(%s): " format, (dev)->name, ## args)
+	DMDEBUG("(%pg): " format, (dev)->bdev, ## args)
 
 /*
  * Functions defined in dm-zoned-metadata.c