Re: [PATCH v2] mm: deduplicate cacheline padding code

[Andrew Morton]

On Fri, 26 Aug 2022 23:06:42 +0000 Shakeel Butt <shakeelb@xxxxxxxxxx> wrote:

> There are three users (mmzone.h, memcontrol.h, page_counter.h) using
> similar code for forcing cacheline padding between fields of different
> structures. Dedup that code.
> 
> ...
> 
>  include/linux/cache.h        | 13 +++++++++++++
>  include/linux/memcontrol.h   | 13 ++-----------
>  include/linux/mmzone.h       | 24 +++++-------------------
>  include/linux/page_counter.h | 13 ++-----------

I'm looking for an obvious and reliable way in which those three
headers include cache.h.  Seems that mm_types.h's inclusion of cache.h
should be sufficient.  Direct inclusion of cache.h would of course be
safest.  I guess if it breaks, we'll hear about it ;)