Sorry for the late update as I was busy on my own things.
This series covers more function to mark on-disk bitmap. Besides, some
code which is relevant to buddy cache is also tested.
Before more work is done, I want to be sure I'm not on a wrong
direction!

Kemeng Shi (5):
  ext4: Add unit test for test_free_blocks_simple
  ext4: Add unit test of ext4_mb_generate_buddy
  ext4: Add unit test for mb_mark_used
  ext4: Add unit test for mb_free_blocks
  ext4: Add unit test for ext4_mb_mark_diskspace_used

 fs/ext4/mballoc-test.c | 504 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 504 insertions(+)

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2.30.0