5b3be698a872 ("memcg: better bounds on the memcg stats updates")
11192d9c124d ("memcg: flush stats only if updated")
1f828223b799 ("memcg: flush lruvec stats in the refault")
aa48e47e3906 ("memcg: infrastructure to flush memcg stats")
7e1c0d6f5820 ("memcg: switch lruvec stats to rstat")