diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index cb1c1ab..91542be 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -375,10 +375,16 @@ void ext4_da_update_reserve_space(struct inode *inode,
 		 * We can release all of the reserved metadata blocks
 		 * only when we have written all of the delayed
 		 * allocation blocks.
+		 * When bigalloc and delalloc are enabled, we couldn't release
+		 * all of reserved metadata blocks, although all delay blocks
+		 * are written out, because it still has some metadata blocks
+		 * which are allocated.
 		 */
-		percpu_counter_sub(&sbi->s_dirtyclusters_counter,
-				   ei->i_reserved_meta_blocks);
-		ei->i_reserved_meta_blocks = 0;
+		if (sbi->s_cluster_ratio == 1) {
+			percpu_counter_sub(&sbi->s_dirtyclusters_counter,
+					   ei->i_reserved_meta_blocks);
+			ei->i_reserved_meta_blocks = 0;
+		}
 		ei->i_da_metadata_calc_len = 0;
 	}
 	spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);