Re: [PATCH v6 v6 0/3] ext4: improve mballoc statistics reporting and control

[liubaolin <liubaolin12138@163.com>]

Dear Maintainer,
    I was wondering if there are still any concerns or questions 
regarding this patch series.

    The patches have been updated based on the previous review comments 
and have also passed the Sashiko AI review.
    I would appreciate any further feedback and look forward to your reply.

Best regards,
Baolin

在 2026/6/24 17:38, Baolin Liu 写道:
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> At 2026-05-24 09:54:18, "Baolin Liu" <liubaolin12138@163.com> wrote:
>>From: Baolin Liu <liubaolin@kylinos.cn>
>>
>>This series improves mballoc statistics reporting and control by adding
>>blocks_allocated to /proc/fs/ext4/<dev>/mb_stats, using
>>READ_ONCE()/WRITE_ONCE() for concurrent accesses to s_mb_stats, and
>>allowing mballoc stats to be controlled through
>>/proc/fs/ext4/<dev>/mb_stats.
>>
>>Changes in v6:
>> - Serialize proc and sysfs updates to s_mb_stats with a mutex so that
>>   clearing mb_stats through the proc control path cannot race with
>>   concurrent administrative writes.
>>
>>Baolin Liu (3):
>>  ext4: add blocks_allocated to mb_stats output
>>  ext4: use READ_ONCE/WRITE_ONCE for s_mb_stats
>>  ext4: allow controlling mballoc stats through proc mb_stats
>>
>> Documentation/ABI/testing/sysfs-fs-ext4 |  3 +-
>> Documentation/admin-guide/ext4.rst      |  9 ++-
>> Documentation/filesystems/proc.rst      | 13 +---
>> fs/ext4/ext4.h                          |  2 +
>> fs/ext4/mballoc.c                       | 58 ++++++++++++++----
>> fs/ext4/sysfs.c                         | 80 ++++++++++++++++++++++++-
>> 6 files changed, 135 insertions(+), 30 deletions(-)
>>
>>-- 
>>2.51.0