Re: [v8 PATCH 11/13] mm: vmscan: don't need allocate shrinker->nr_deferred for memcg aware shrinkers

[Shakeel Butt]

On Tue, Feb 16, 2021 at 4:13 PM Yang Shi <shy828301@xxxxxxxxx> wrote:
>
> Now nr_deferred is available on per memcg level for memcg aware shrinkers, so don't need
> allocate shrinker->nr_deferred for such shrinkers anymore.
>
> The prealloc_memcg_shrinker() would return -ENOSYS if !CONFIG_MEMCG or memcg is disabled
> by kernel command line, then shrinker's SHRINKER_MEMCG_AWARE flag would be cleared.
> This makes the implementation of this patch simpler.
>
> Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
> Reviewed-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
> Acked-by: Roman Gushchin <guro@xxxxxx>
> Signed-off-by: Yang Shi <shy828301@xxxxxxxxx>

Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>