diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 9f621b0c0e17..45ff8fd00248 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -841,10 +841,8 @@ static void __set_metadata_reserve(struct dm_pool_metadata *pmd)
 	if (r) {
 		DMERR("could not get size of metadata device");
 		pmd->metadata_reserve = max_blocks;
-	} else {
-		sector_div(total, 10);
-		pmd->metadata_reserve = min(max_blocks, total);
-	}
+	} else
+		pmd->metadata_reserve = min(max_blocks, div_u64(total, 10));
 }
 
 struct dm_pool_metadata *dm_pool_metadata_open(struct block_device *bdev,