Patch 1 fixes reusing stale buffer heads from last failed mounting.
Patch 2~4 reconstructs 'j_format_version' initialization and checking
in loading process.

v1->v2:
  Adopt suggestions from Tudor, add fix tag and corrupt 'stable' field
  in patch 1.
  Reserve empty lines in patch 4.

Zhang Yi (4):
  jbd2: remove unused feature macros
  jbd2: switch to check format version in superblock directly
  jbd2: factor out journal initialization from journal_get_superblock()
  jbd2: remove j_format_version

Zhihao Cheng (1):
  ext4: Fix reusing stale buffer heads from last failed mounting

 fs/ext4/super.c      | 15 +++++++------
 fs/jbd2/journal.c    | 53 +++++++++++++++++---------------------------
 include/linux/jbd2.h | 33 ++++++++++++---------------
 3 files changed, 42 insertions(+), 59 deletions(-)

-- 
2.31.1