ext4/jbd2: inline_data fixes and minor cleanups

Hello,

Please find v2 of the inline_data fixes and some minor cleanups found during code review.

I have dropped patch-6 in v2 which was removing use of t_handle_lock (spinlock) from within jbd2_journal_wait_updates(). Based on Jan comments, I feel we can push that as killing of t_handle_lock into a separate series (which will be on top of this).

v1 -> v2
========
1. Added Jan's Reviewed-by tag & addressed one of his comment on no need to make jbd2_journal_wait_updates() function inline.
2. Dropped patch-6 as described above.

Description
============
Patch[1]: fixes BUG_ON with inline_data which was reported [1] with generic/475.

Patch[2]: is mostly cleanup found during code review of inline_data code.

Patch[3]: is a possible memory corruption fix in case of krealloc failure.

Patch[4-5]: Cleanups.

[v1]: https://lore.kernel.org/linux-ext4/[email protected]/T/

Ritesh Harjani (5):
ext4: Fix error handling in ext4_restore_inline_data()
ext4: Remove redundant max inline_size check in ext4_da_write_inline_data_begin()
ext4: Fix error handling in ext4_fc_record_modified_inode()
jbd2: Cleanup unused functions declarations from jbd2.h
jbd2: Refactor wait logic for transaction updates into a common function

 fs/ext4/fast_commit.c | 64 ++++++++++++++++++++-----------------------
 fs/ext4/inline.c      | 23 +++++++++-------
 fs/jbd2/commit.c      | 19 ++-----------
 fs/jbd2/transaction.c | 53 +++++++++++++++++++++--------------
 include/linux/jbd2.h  | 11 ++------
 5 files changed, 80 insertions(+), 90 deletions(-)

--
2.31.1