[PATCH 0/2] fs: refactor code to use clear_and_wake_up_bit()

[Agatha Isabelle Moreira <code@agatha.dev>]

Refactor code to use `clear_and_wake_up_bit()` instead of manual calls
to:
       	clear_bit_unlock();
	smp_mb__after_atomic();
	wake_up_bit();

The helper function `clear_and_wake_up_bit()` was introduced in
'commit 8236b0ae31c83 ("bdi: wake up concurrent wb_shutdown()
callers.")' as a generic way of doing the same sequence of operations,
but several pieces of code still remain.

Replace manual calls to the operations by a single call to
`clear_and_wake_up_bit()` to deduplicate code and standardize pathways.

TESTING
=======
Boot-tested on an x86_64 QEMU virtual machine. Basic filesystem
operations (create, delete, sync) were performed on an ext4 filesystem
with `data=journal` modes. No issues were observed.

Suggested-by: shuo chen <1289151713@qq.com>
Link: https://lore.kernel.org/kernelnewbies/agzoqV835-co4kAN@guidai/T/#t
Signed-off-by: Agatha Isabelle Moreira <code@agatha.dev>
---

Agatha Isabelle Moreira (2):
  fs: buffer: use clear_and_wake_up_bit() in unlock_buffer()
  fs: jbd2: use clear_and_wake_up_bit() in journal_end_buffer_io_sync()

 fs/buffer.c      | 4 +---
 fs/jbd2/commit.c | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

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2.53.0