Re: [PATCH v2 1/2] mm: use aligned address in clear_gigantic_page()

Andrew Morton
2024-12-01T02:15:51Z

On Thu, 31 Oct 2024 16:39:53 +0800 "Huang, Ying" <ying.huang@intel.com> wrote:

> However, on ARM64, it does introduce some regression for clearing pages
> from end to start. That needs to be addressed. I guess that the
> regression can be resolved via using more clearing from start to end
> (but not all). For example, can you take a look at the patch below?
> Which uses the similar framework as before, but clear each small trunk
> (mpage) from start to end. You can adjust MPAGE_NRPAGES to check when
> the regression can be restored.
>
> WARNING: the patch is only build tested.

I'm holding this patch in mm-unstable because it's unclear (to me) that
this regression has been adequately addressed?