Re: [PATCH 1/1] mm/shrinker: add NULL checks after rcu_dereference() in shrinker bit functions

[Muchun Song]

> On Jun 25, 2026, at 11:01, 傅清爽 <fuqingshuang@xxxxxxxxxx> wrote:
> 
> Hi Qi, 
>  
> Thank you very much for your detailed analysis and patient explanation. 
> I fully understand your point that the existing caller constraints guarantee shrinker_info cannot be NULL here, and this NULL check is unnecessary defensive code.

Thanks for your contribution! I have a couple of quick suggestions to
help things go smoother:

- Please take a closer look at our community communication guidelines,
  as we rely on plain-text-based replies here.

- For any issues you're not completely sure about, it would be awesome
  if you could run a quick validation yourself before sending out a patch.
  Maintainers' time is quite limited, so this helps everyone save a lot
  of energy and speeds up the review process.

Thanks for understanding, and looking forward to your next patch!

Thanks,
Muchun