Hi Roman,

On Wed, 1 Aug 2018 17:31:59 -0700 Roman Gushchin <guro@fb.com> wrote:
>
> Introduce the mem_cgroup_put() helper, which helps to eliminate guarding
> memcg css release with "#ifdef CONFIG_MEMCG" in multiple places.
> 
> Link: http://lkml.kernel.org/r/20180623000600.5818-2-guro@fb.com
> Signed-off-by: Roman Gushchin <guro@fb.com>
> Reviewed-by: Shakeel Butt <shakeelb@google.com>
> Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
> Acked-by: Johannes Weiner <hannes@cmpxchg.org>
> Acked-by: Michal Hocko <mhocko@kernel.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

I have no idea why my Signed-off-by is attached to this patch (or
Andrew's for that matter) ...

-- 
Cheers,
Stephen Rothwell