# Re: \[PATCH RFC 1/4\] mm: percpu: Generalize percpu related config

- From: Kefeng Wang \<hidden\>
- Date: 2021-11-30 06:22:15 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/11/1590878
- Thread: https://ratatoskr.run/linux-mm/2021/11/1580920/t.md

```text

On 2021/11/30 6:36, Dennis Zhou wrote:
> Hello,
>
> On Sun, Nov 21, 2021 at 05:35:54PM +0800, Kefeng Wang wrote:
>> The HAVE_SETUP_PER_CPU_AREA/NEED_PER_CPU_EMBED_FIRST_CHUNK/
>> NEED_PER_CPU_PAGE_FIRST_CHUNK/USE_PERCPU_NUMA_NODE_ID configs,
>> which has duplicate definitions on platforms that subscribe it.
>>
>> Move them into mm, drop these redundant definitions and instead
>> just select it on applicable platforms.
>>
>> Signed-off-by: Kefeng Wang <redacted>
>> ---
>>   arch/arm64/Kconfig   | 20 ++++----------------
>>   arch/ia64/Kconfig    |  9 ++-------
>>   arch/mips/Kconfig    | 10 ++--------
>>   arch/powerpc/Kconfig | 17 ++++-------------
>>   arch/riscv/Kconfig   | 10 ++--------
>>   arch/sparc/Kconfig   | 12 +++---------
>>   arch/x86/Kconfig     | 17 ++++-------------
>>   mm/Kconfig           | 12 ++++++++++++
>>   8 files changed, 33 insertions(+), 74 deletions(-)
...
>>
> This makes sense and looks good. A series like this is a little tricky.
> The latter patches change the contracts so it'd be easiest to run it
> through my tree. We'd need to get explicit acks from each arch
> maintainer to make sure they're fine with this.

Got it, I will resend without RFC and hope to get ACKs from related arch maintainers.


>
> Thanks,
> Dennis
> .
```