[RFC stable-4.14 00/11] PSI feature for 4.14

[Jack Wang <jinpuwang@gmail.com>]

Hi Folks,

This is a backport for PSI feature from:
http://git.cmpxchg.org/cgit.cgi/linux-psi.git/log/?h=psi-4.17

The patches are included since 4.20.

We're run LTP tests and stress test with these patches on 4.14.93,
no problem found.

I send them out for review, also maybe there are other guys are intereseted.

I kept the conflict note in commit message, so it's easier to review.

Regards,
Jack

Johannes Weiner (10):
  mm: workingset: don't drop refault information prematurely
  mm: workingset: tell cache transitions from workingset thrashing
  delayacct: track delays from thrashing cache pages
  sched: loadavg: consolidate LOAD_INT, LOAD_FRAC, CALC_LOAD
  sched: loadavg: make calc_load_n() public
  sched: sched.h: make rq locking and clock functions available in
    stats.h
  sched: introduce this_rq_lock_irq()
  psi: pressure stall information for CPU, memory, and IO
  psi: cgroup support
  psi: make disabling/enabling easier for vendor kernels

Olof Johansson (1):
  kernel/sched/psi.c: simplify cgroup_move_task()

 Documentation/accounting/psi.txt              |  73 ++
 .../admin-guide/kernel-parameters.txt         |   4 +
 Documentation/cgroup-v2.txt                   |  17 +
 .../platforms/cell/cpufreq_spudemand.c        |   2 +-
 arch/powerpc/platforms/cell/spufs/sched.c     |   9 +-
 arch/s390/appldata/appldata_os.c              |   4 -
 drivers/cpuidle/governors/menu.c              |   4 -
 fs/proc/loadavg.c                             |   3 -
 include/linux/cgroup-defs.h                   |   4 +
 include/linux/cgroup.h                        |  15 +
 include/linux/delayacct.h                     |  23 +
 include/linux/mmzone.h                        |   1 +
 include/linux/page-flags.h                    |   5 +-
 include/linux/psi.h                           |  54 ++
 include/linux/psi_types.h                     |  92 +++
 include/linux/sched.h                         |  10 +
 include/linux/sched/loadavg.h                 |  24 +-
 include/linux/swap.h                          |   2 +-
 include/trace/events/mmflags.h                |   1 +
 include/uapi/linux/taskstats.h                |   6 +-
 init/Kconfig                                  |  28 +
 kernel/cgroup/cgroup.c                        |  44 +-
 kernel/debug/kdb/kdb_main.c                   |   7 +-
 kernel/delayacct.c                            |  15 +
 kernel/fork.c                                 |   4 +
 kernel/sched/Makefile                         |   1 +
 kernel/sched/core.c                           |  16 +-
 kernel/sched/loadavg.c                        | 139 ++--
 kernel/sched/psi.c                            | 772 ++++++++++++++++++
 kernel/sched/sched.h                          | 175 ++--
 kernel/sched/stats.h                          |  86 ++
 mm/compaction.c                               |   5 +
 mm/filemap.c                                  |  27 +-
 mm/huge_memory.c                              |   1 +
 mm/migrate.c                                  |   2 +
 mm/page_alloc.c                               |   9 +
 mm/swap_state.c                               |   1 +
 mm/vmscan.c                                   |  12 +
 mm/vmstat.c                                   |   1 +
 mm/workingset.c                               | 117 ++-
 tools/accounting/getdelays.c                  |   8 +-
 41 files changed, 1580 insertions(+), 243 deletions(-)
 create mode 100644 Documentation/accounting/psi.txt
 create mode 100644 include/linux/psi.h
 create mode 100644 include/linux/psi_types.h
 create mode 100644 kernel/sched/psi.c

-- 
2.17.1