Currently psi supports system-wide as well as cgroup2. Since most use cases are still on cgroup v1, this patchset is trying to do such support. Joseph Qi (3): psi: make cgroup psi helpers public psi: cgroup v1 support psi: add cgroup v1 interfaces block/blk-throttle.c | 10 +++++++ include/linux/cgroup.h | 21 ++++++++++++++ kernel/cgroup/cgroup.c | 33 +++++++++++---------- kernel/sched/cpuacct.c | 10 +++++++ kernel/sched/psi.c | 65 ++++++++++++++++++++++++++++++++++++------ mm/memcontrol.c | 10 +++++++ 6 files changed, 125 insertions(+), 24 deletions(-) -- 2.19.1.856.g8858448bb