Re: [PATCH v1] ext4: add mb_stats_clear for mballoc statistics

[liubaolin <liubaolin12138@163.com>]

> Dear ojaswin,
>    Alright, thank you for your review. I will revise the patch according to Andreas's comments and submit a second version. 
>    When submitting the second version, I will also update the relevant files under the Documentation directory according to your suggestions to add explanations.
> 
> Regards,
> Baolin



在 2026/4/16 3:26, Ojaswin Mujoo 写道:
> On Tue, Apr 14, 2026 at 06:02:11PM +0800, Baolin Liu wrote:
>> From: Baolin Liu <liubaolin@kylinos.cn>
>>
>> Add a write-only mb_stats_clear sysfs knob to reset ext4 mballoc
>> runtime statistics.This makes it easier to inspect allocator
>> activity for a specific workload instead of using counters
>> accumulated since mount.
>>
>> Signed-off-by: Baolin Liu <liubaolin@kylinos.cn>
> 
> The patch looks good to me Baolin. We just need to add documentation of
> this to the Documentation/ABI/testing/sysfs-fs-ext4 file so that the
> users know what it is and the fact that the only value we allow to write
> is 1.
> 
> Regards,
> ojaswin