ext4: cleanup to use ext4_group_first_block_no()

This is a cleanup and simplification patch which takes some open-coded
calculations to calculate the first block number of a group and
converts them to use the (already defined) ext4_group_first_block_no()
function.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger@sun.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 720061a0ee53..fadbc4d3a202 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -130,8 +130,7 @@ unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
                  * to make sure we calculate the right free blocks
                  */
                 group_blocks = ext4_blocks_count(sbi->s_es) -
-                        le32_to_cpu(sbi->s_es->s_first_data_block) -
-                        (EXT4_BLOCKS_PER_GROUP(sb) * (ngroups - 1));
+                        ext4_group_first_block_no(sb, ngroups - 1);
         } else {
                 group_blocks = EXT4_BLOCKS_PER_GROUP(sb);
         }