Re: [PATCH 4/5] mm: rework non-root kmem_cache lifecycle management

[Roman Gushchin]

On Thu, Apr 18, 2019 at 01:34:52PM +0000, Christopher Lameter wrote:
> On Wed, 17 Apr 2019, Roman Gushchin wrote:
> 
> > Let's make every page to hold a reference to the kmem_cache (we
> > already have a stable pointer), and make kmem_caches to hold a single
> > reference to the memory cgroup.
> 
> Ok you are freeing one word in the page struct that can be used for other
> purposes now?
> 

Looks so!