Re: [External] Re: [PATCH v18 9/9] mm: hugetlb: optimize the code with the help of the compiler

From: Muchun Song
Date: Thu Mar 11 2021 - 08:01:31 EST


On Thu, Mar 11, 2021 at 8:16 PM Michal Hocko <mhocko@xxxxxxxx> wrote:
>
> On Thu 11-03-21 18:00:09, Muchun Song wrote:
> [...]
> > Sorry. I am confused why you disagree with this change.
> > It does not bring any disadvantages.
>
> Because it is adding a code which is not really necessary and which will
> have to be maintained. Think of future changes which would need to grow
> more of these. Hugetlb code paths shouldn't really think about size of
> the struct page.

Got it. I will drop this patch.

> --
> Michal Hocko
> SUSE Labs