Re: [PATCH v2] mm: use clear_user_(high)page() for arch with special user folio handling

From: Mathieu Desnoyers
Date: Sat Dec 07 2024 - 11:38:20 EST


On 2024-12-07 11:20, Zi Yan wrote:
On 7 Dec 2024, at 10:31, Mathieu Desnoyers wrote:
[...]
I'm not entirely sure if we want to go for the wording "is_aliasing"
or "is_incoherent" when talking about icache vs dcache, so I'm open
to ideas here.


Let me know if the code below looks good to you. I will use
(cpu_icache_is_aliasing() || cpu_dcache_is_aliasing())
instead of
(cpu_dcache_is_aliasing() || IS_ENABLED(CONFIG_ARC))
in my next version.

Yes, this is in line with what I have in mind.

And I prefer your second version with the generic
cpu_icache_is_aliasing rather than defining it for
each architecture.

Thanks,

Mathieu

--
Mathieu Desnoyers
EfficiOS Inc.
https://www.efficios.com