Re: [v8 PATCH 08/13] mm: vmscan: use a new flag to indicate shrinker is registered

[Shakeel Butt]

On Tue, Feb 16, 2021 at 4:13 PM Yang Shi <shy828301@xxxxxxxxx> wrote:
>
> Currently registered shrinker is indicated by non-NULL shrinker->nr_deferred.
> This approach is fine with nr_deferred at the shrinker level, but the following
> patches will move MEMCG_AWARE shrinkers' nr_deferred to memcg level, so their
> shrinker->nr_deferred would always be NULL.  This would prevent the shrinkers
> from unregistering correctly.
>
> Remove SHRINKER_REGISTERING since we could check if shrinker is registered
> successfully by the new flag.
>
> Acked-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
> Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
> Signed-off-by: Yang Shi <shy828301@xxxxxxxxx>

Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>