diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 78ee3ef795ae..1175750ad05f 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -56,6 +56,9 @@ void ext4_get_group_no_and_offset(struct super_block *sb, ext4_fsblk_t blocknr,
 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;
 	ext4_grpblk_t offset;
 
+	if (blocknr < le32_to_cpu(es->s_first_data_block))
+		blocknr = le32_to_cpu(es->s_first_data_block);
+
 	blocknr = blocknr - le32_to_cpu(es->s_first_data_block);
 	offset = do_div(blocknr, EXT4_BLOCKS_PER_GROUP(sb)) >>
 		EXT4_SB(sb)->s_cluster_bits;