Re: [PATCH net-next v5 1/5] mm: add a signature in struct page

[Matteo Croce]

On Fri, May 14, 2021 at 3:01 AM Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:
>
> I feel like I want to document the pfmemalloc bit in mm_types.h,
> but I don't have a concrete suggestion yet.
>

Maybe simply:

/* Bit zero is set
 * Bit one if pfmemalloc page
 */
 unsigned long compound_head;

Regards,
-- 
per aspera ad upstream