Re: [PATCH v4 3/5] mm: memcontrol: change ug->dummy_page only if memcg changed

On Thu, Mar 18, 2021 at 4:08 AM Muchun Song wrote: > > Just like assignment to ug->memcg, we only need to update ug->dummy_page > if memcg changed. So move it to there. This is a very small optimization. > > Signed-off-by: Muchun Song Reviewed-by: Shakeel Butt

Re: [PATCH v4 3/5] mm: memcontrol: change ug->dummy_page only if memcg changed

On Thu, Mar 18, 2021 at 07:06:56PM +0800, Muchun Song wrote: > Just like assignment to ug->memcg, we only need to update ug->dummy_page > if memcg changed. So move it to there. This is a very small optimization. > > Signed-off-by: Muchun Song Acked-by: Johannes Weiner