# Re: \[PATCH 0/8\] mm: globalize rest\_of\_page() macro

- From: Jens Axboe \<axboe@kernel.dk\>
- Date: 2026-03-04 02:42:47 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2026/03/342246
- Thread: https://ratatoskr.run/linuxppc-dev/2026/03/342235/t.md

```text
On 3/3/26 7:28 PM, Jakub Kicinski wrote:
> On Tue,  3 Mar 2026 20:27:08 -0500 Yury Norov wrote:
>> The net/9p networking driver has a handy macro to calculate the
>> amount of bytes from a given pointer to the end of page. Move it
>> to core/mm, and apply tree-wide. No functional changes intended.
>>
>> This series was originally introduced as a single patch #07/12 in:
>>
>> https://lore.kernel.org/all/20260219181407.290201-1-ynorov@nvidia.com/
>>
>> Split it for better granularity and submit separately.
> 
> I don't get what the motivation is here. Another helper developers
> and readers of the code will need to know about just to replace 
> obvious and easy to comprehend math.

I fully agree, I had the same thought reading this.

-- 
Jens Axboe

```