On Sun, Aug 30, 2020 at 02:01:30PM -0700, Hugh Dickins wrote: > hugetlbfs pages do not participate in memcg: so although they do find > most of migrate_page_states() useful, it would be better if they did > not call into mem_cgroup_migrate() - where Qian Cai reported that LTP's > move_pages12 triggers the warning in Alex Shi's prospective commit > "mm/memcg: warning on !memcg after readahead page charged". > > Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxx>