Re: [v3 PATCH 3/4] mm: shrinker: make shrinker not depend on memcg kmem

[Andrew Morton]

On Thu, 13 Jun 2019 05:56:48 +0800 Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx> wrote:

> Currently shrinker is just allocated and can work when memcg kmem is
> enabled.  But, THP deferred split shrinker is not slab shrinker, it
> doesn't make too much sense to have such shrinker depend on memcg kmem.
> It should be able to reclaim THP even though memcg kmem is disabled.
> 
> Introduce a new shrinker flag, SHRINKER_NONSLAB, for non-slab shrinker.
> When memcg kmem is disabled, just such shrinkers can be called in
> shrinking memcg slab.

This causes a couple of compile errors with an allnoconfig build. 
Please fix that and test any other Kconfig combinations which might
trip things up.