[Devel] [PATCH -mm 1/4] memcg, slab: do not schedule cache destruction when last page goes away

[Christoph Lameter]

On Tue, 15 Apr 2014, Vladimir Davydov wrote:

> 2) When freeing an object of a dead memcg cache, initiate thorough check
> if the cache is really empty and destroy it then. That could be
> implemented by poking the reaping thread on kfree, and actually does not
> require the schedule_work in memcg_release_pages IMO.

There is already logic in both slub and slab that does that on cache
close.