Re: [PATCH v2] mm: introduce PAGEFLAGS_MASK to replace ((1UL << NR_PAGEFLAGS) - 1)

From: Johannes Weiner
Date: Thu Aug 19 2021 - 14:08:46 EST


On Thu, Aug 19, 2021 at 11:07:12PM +0800, Muchun Song wrote:
> Instead of hard-coding ((1UL << NR_PAGEFLAGS) - 1) everywhere, introducing
> PAGEFLAGS_MASK to make the code clear to get the page flags.
>
> Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>

LGTM.

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>