Re: [PATCH v3 1/4] mm: reference totalram_pages and managed_pages once per function

[Vlastimil Babka]

On 11/8/18 9:23 AM, Arun KS wrote:
> This patch is in preparation to a later patch which converts totalram_pages
> and zone->managed_pages to atomic variables. Please note that re-reading
> the value might lead to a different value and as such it could lead to
> unexpected behavior. There are no known bugs as a result of the current code
> but it is better to prevent from them in principle.

..., which will happen after the atomic conversion in the next patch.

> Signed-off-by: Arun KS <arunks@xxxxxxxxxxxxxx>
> Reviewed-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
> Acked-by: Michal Hocko <mhocko@xxxxxxxx>

Acked-by: Vlastimil Babka <vbabka@xxxxxxx>