On Tue, Mar 09, 2021 at 06:07:17PM +0800, Muchun Song wrote: > The page only can be marked as kmem when CONFIG_MEMCG_KMEM is enabled. > So move PageMemcgKmem() to the scope of the CONFIG_MEMCG_KMEM. > > As a bonus, on !CONFIG_MEMCG_KMEM build some code can be compiled out. > > Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>