[RFC PATCH 0/2] ext4, jbd2: journal cycled record transactions

[Zhang Yi <yi.zhang@huaweicloud.com>]

From: Zhang Yi <yi.zhang@huawei.com>

Hello, This patch set introduce a new mount option names
journal_cycle_record, it save journal head for a clean unmounted file
system, let ext4 continue/cycled record new journal transactions after
previous mount or recovered transactions for unclean file system. It
could give us more info when analysing a corrupted file system image
and locate kernel consistency bugs more conveniently.

This is just the kernel part and have already passed throuth xfstests in
auto mode. I will continue the e2fsprogs' part if nobody strong dislike
that. Any comments are welcome.

Thanks,
Yi.

Zhang Yi (2):
  jbd2: cycled record log on clean journal logging area
  ext4: add journal cycled recording support

 fs/ext4/ext4.h       |  2 ++
 fs/ext4/super.c      | 17 +++++++++++++++++
 fs/jbd2/journal.c    | 18 ++++++++++++++++--
 fs/jbd2/recovery.c   | 22 +++++++++++++++++-----
 include/linux/jbd2.h |  9 +++++++--
 5 files changed, 59 insertions(+), 9 deletions(-)

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2.31.1