Re: [PATCH v7 2/3] mm: Move buddy list manipulations into helpers

From: Dan Williams
Date: Tue Jan 29 2019 - 14:27:21 EST


On Fri, Jan 25, 2019 at 6:31 AM Michal Hocko <mhocko@xxxxxxxxxx> wrote:
>
> On Mon 07-01-19 15:21:16, Dan Williams wrote:
> > In preparation for runtime randomization of the zone lists, take all
> > (well, most of) the list_*() functions in the buddy allocator and put
> > them in helper functions. Provide a common control point for injecting
> > additional behavior when freeing pages.
>
> Looks good in general and it actually makes the code more readable.
> One nit below
>
> [...]
> > +static inline void rmv_page_order(struct page *page)
> > +{
> > + __ClearPageBuddy(page);
> > + set_page_private(page, 0);
> > +}
> > +
>
> I guess we do not really need this helper and simply squash it to its
> only user.

Ok.

>
> Acked-by: Michal Hocko <mhocko@xxxxxxxx>

Thanks.

>
> --
> Michal Hocko
> SUSE Labs