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

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