dm-zoned: cleanup dmz_fixup_devices

Use the bdev based helpers where applicable and move the zoned_dev
into the scope where it is actually used.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20220706070350.1703384-15-hch@lst.deSigned-off-by: Jens Axboe <axboe@kernel.dk>

drivers/md/dm-zoned-target.c

@@ -764,8 +764,7 @@ static void dmz_put_zoned_device(struct dm_target *ti)
 static int dmz_fixup_devices(struct dm_target *ti)
 {
 	struct dmz_target *dmz = ti->private;
-	struct dmz_dev *reg_dev, *zoned_dev;
-	struct request_queue *q;
+	struct dmz_dev *reg_dev = NULL;
 	sector_t zone_nr_sectors = 0;
 	int i;
 
@@ -780,31 +779,32 @@ static int dmz_fixup_devices(struct dm_target *ti)
 			return -EINVAL;
 		}
 		for (i = 1; i < dmz->nr_ddevs; i++) {
-			zoned_dev = &dmz->dev[i];
+			struct dmz_dev *zoned_dev = &dmz->dev[i];
+			struct block_device *bdev = zoned_dev->bdev;
+
 			if (zoned_dev->flags & DMZ_BDEV_REGULAR) {
 				ti->error = "Secondary disk is not a zoned device";
 				return -EINVAL;
 			}
-			q = bdev_get_queue(zoned_dev->bdev);
 			if (zone_nr_sectors &&
-			    zone_nr_sectors != blk_queue_zone_sectors(q)) {
+			    zone_nr_sectors != bdev_zone_sectors(bdev)) {
 				ti->error = "Zone nr sectors mismatch";
 				return -EINVAL;
 			}
-			zone_nr_sectors = blk_queue_zone_sectors(q);
+			zone_nr_sectors = bdev_zone_sectors(bdev);
 			zoned_dev->zone_nr_sectors = zone_nr_sectors;
-			zoned_dev->nr_zones = bdev_nr_zones(zoned_dev->bdev);
+			zoned_dev->nr_zones = bdev_nr_zones(bdev);
 		}
 	} else {
-		reg_dev = NULL;
-		zoned_dev = &dmz->dev[0];
+		struct dmz_dev *zoned_dev = &dmz->dev[0];
+		struct block_device *bdev = zoned_dev->bdev;
+
 		if (zoned_dev->flags & DMZ_BDEV_REGULAR) {
 			ti->error = "Disk is not a zoned device";
 			return -EINVAL;
 		}
-		q = bdev_get_queue(zoned_dev->bdev);
-		zoned_dev->zone_nr_sectors = blk_queue_zone_sectors(q);
-		zoned_dev->nr_zones = bdev_nr_zones(zoned_dev->bdev);
+		zoned_dev->zone_nr_sectors = bdev_zone_sectors(bdev);
+		zoned_dev->nr_zones = bdev_nr_zones(bdev);
 	}
 
 	if (reg_dev) {