[Devel] [PATCH 3/8] memcg, slab: never try to merge memcg caches

[Michal Hocko]

On Tue 04-02-14 19:27:19, Vladimir Davydov wrote:
[...]
> What does this patch change? Actually, it introduces no functional
> changes - it only remove the code trying to find an alias for a memcg
> cache, because it will fail anyway. So this is rather a cleanup.

But this also means that two different memcgs might share the same cache
and so the pages for that cache, no? Actually it would depend on timing
because a new page would be chaged for the current allocator.

cachep->memcg_params->memcg == memcg would prevent from such a merge
previously AFAICS, or am I still confused?
-- 
Michal Hocko
SUSE Labs