diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 75bbf77..3fce402 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -1864,8 +1864,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) -
 			       le32_to_cpu(es->s_first_data_block) - 1)
 				       / EXT3_BLOCKS_PER_GROUP(sb)) + 1;
-	db_count = (sbi->s_groups_count + EXT3_DESC_PER_BLOCK(sb) - 1) /
-		   EXT3_DESC_PER_BLOCK(sb);
+	db_count = DIV_ROUND_UP(sbi->s_groups_count, EXT3_DESC_PER_BLOCK(sb));
 	sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *),
 				    GFP_KERNEL);
 	if (sbi->s_group_desc == NULL) {