Re: [PATCHv8 02/14] mm: Add support for unaccepted memory

From: Kirill A. Shutemov
Date: Mon Dec 26 2022 - 22:19:08 EST


On Mon, Dec 26, 2022 at 01:23:18PM +0100, Borislav Petkov wrote:
> On Wed, Dec 07, 2022 at 04:49:21AM +0300, Kirill A. Shutemov wrote:
> > diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> > index 6e60657875d3..6d597e833a73 100644
> > --- a/mm/page_alloc.c
> > +++ b/mm/page_alloc.c
> > @@ -450,6 +450,11 @@ EXPORT_SYMBOL(nr_online_nodes);
> >
> > int page_group_by_mobility_disabled __read_mostly;
> >
> > +#ifdef CONFIG_UNACCEPTED_MEMORY
> > +/* Counts number of zones with unaccepted pages. */
> > +static DEFINE_STATIC_KEY_FALSE(unaccepted_pages);
>
> Then call it what it is:
>
> static DEFINE_STATIC_KEY_FALSE(zones_with_unaccepted_pages);
>
> so that when reading the code it is self-describing:
>
> if (!static_branch_unlikely(&zones_with_unaccepted_pages))
> return false;

Looks good. Will fix for the next version.

--
Kiryl Shutsemau / Kirill A. Shutemov