On Mon, Apr 20, 2020 at 06:11:15PM -0400, Johannes Weiner wrote: > When memcg uses the generic vmstat counters, it doesn't need to do > anything at charging and uncharging time. It does, however, need to > migrate counts when pages move to a different cgroup in move_account. > > Prepare the move_account function for the arrival of NR_FILE_PAGES, > NR_ANON_MAPPED, NR_ANON_THPS etc. by having a branch for files and a > branch for anon, which can then divided into sub-branches. > > Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx> Reviewed-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>