ext4: cleanup to use ext4_grp_offs_to_block()

More cleanup to convert open-coded calculations of the first block
number of a free extent to use ext4_grp_offs_to_block() instead.

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

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 11568697b1926a53ddb9562661f91607b1bd974c..37d2438e0cb4d716358f08fd62ca5b0403b74f4c 100644 (file)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2697,9 +2697,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
        if (err)
                goto out_err;
 
-       block = ac->ac_b_ex.fe_group * EXT4_BLOCKS_PER_GROUP(sb)
-               + ac->ac_b_ex.fe_start
-               + le32_to_cpu(es->s_first_data_block);
+       block = ext4_grp_offs_to_block(sb, &ac->ac_b_ex);
 
        len = ac->ac_b_ex.fe_len;
        if (!ext4_data_block_valid(sbi, block, len)) {
@@ -3154,9 +3152,7 @@ ext4_mb_use_preallocated(struct ext4_allocation_context *ac)
                /* The max size of hash table is PREALLOC_TB_SIZE */
                order = PREALLOC_TB_SIZE - 1;
 
-       goal_block = ac->ac_g_ex.fe_group * EXT4_BLOCKS_PER_GROUP(ac->ac_sb) +
-                    ac->ac_g_ex.fe_start +
-                    le32_to_cpu(EXT4_SB(ac->ac_sb)->s_es->s_first_data_block);
+       goal_block = ext4_grp_offs_to_block(ac->ac_sb, &ac->ac_g_ex);
        /*
         * search for the prealloc space that is having
         * minimal distance from the goal block.