ext4: remove useless marking of superblock dirty

Commit a0375156 properly notes that superblock doesn't need to be marked
as dirty when only number of free inodes / blocks / number of directories
changes since that is recomputed on each mount anyway. However that comment
leaves some unnecessary markings as dirty in place. Remove these.

Artem: tested using xfstests for both journalled and non-journalled ext4.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Tested-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

2 files changed, 0 insertions, 4 deletions

diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 6866bc233e94..26154b81b836 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -315,7 +315,6 @@ out:
                 err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);
                 if (!fatal)
                         fatal = err;
-                ext4_mark_super_dirty(sb);
         } else
                 ext4_error(sb, "bit already cleared for inode %lu", ino);
 
@@ -830,7 +829,6 @@ got:
         percpu_counter_dec(&sbi->s_freeinodes_counter);
         if (S_ISDIR(mode))
                 percpu_counter_inc(&sbi->s_dirs_counter);
-        ext4_mark_super_dirty(sb);
 
         if (sbi->s_log_groups_per_flex) {
                 flex_group = ext4_flex_group(sbi, group);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index ca376e7d716a..8eae94771c45 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2831,7 +2831,6 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
         err = ext4_handle_dirty_metadata(handle, NULL, gdp_bh);
 
 out_err:
-        ext4_mark_super_dirty(sb);
         brelse(bitmap_bh);
         return err;
 }
@@ -4700,7 +4699,6 @@ do_more:
                 put_bh(bitmap_bh);
                 goto do_more;
         }
-        ext4_mark_super_dirty(sb);
 error_return:
         brelse(bitmap_bh);
         ext4_std_error(sb, err);