On Tue, May 21, 2019 at 01:07:29PM -0700, Roman Gushchin wrote: > Initialize kmem_cache->memcg_params.memcg pointer in > memcg_link_cache() rather than in init_memcg_params(). > > Once kmem_cache will hold a reference to the memory cgroup, > it will simplify the refcounting. > > For non-root kmem_caches memcg_link_cache() is always called > before the kmem_cache becomes visible to a user, so it's safe. > > Signed-off-by: Roman Gushchin <guro@xxxxxx> > Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
