[GIT PULL] scheduler changes for v5.10

[Ingo Molnar]

Linus,

Please pull the latest sched/core git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-core-2020-10-12

   # HEAD: feff2e65efd8d84cf831668e182b2ce73c604bbb sched/deadline: Unthrottle PI boosted threads while enqueuing

Scheduler changes for v5.10:

 - Reorganize & clean up the SD* flags definitions and add a bunch
   of sanity checks. These new checks caught quite a few bugs or at
   least inconsistencies, resulting in another set of patches.

 - Rseq updates, add MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ

 - Add a new tracepoint to improve CPU capacity tracking

 - Improve overloaded SMP system load-balancing behavior

 - Tweak SMT balancing

 - Energy-aware scheduling updates

 - NUMA balancing improvements

 - Deadline scheduler fixes and improvements

 - CPU isolation fixes

 - Misc cleanups, simplifications and smaller optimizations.

 Thanks,

	Ingo

------------------>
Barry Song (1):
      sched/fair: Use dst group while checking imbalance for NUMA balancer

Daniel Bristot de Oliveira (3):
      MAINTAINERS: Add myself as SCHED_DEADLINE reviewer
      sched/rt: Disable RT_RUNTIME_SHARE by default
      sched/deadline: Unthrottle PI boosted threads while enqueuing

Jiang Biao (1):
      sched/fair: Simplify the work when reweighting entity

Josh Don (1):
      sched/fair: Ignore cache hotness for SMT migration

Lucas Stach (1):
      sched/deadline: Fix stale throttling on de-/boosted tasks

Lukasz Luba (1):
      sched/fair: Fix wrong negative conversion in find_energy_efficient_cpu()

Peter Oskolkov (4):
      rseq/membarrier: Add MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ
      rseq/selftests,x86_64: Add rseq_offset_deref_addv()
      rseq/selftests: Test MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ
      sched/fair: Tweak pick_next_entity()

Sebastian Andrzej Siewior (2):
      sched: Bring the PF_IO_WORKER and PF_WQ_WORKER bits closer together
      sched: Cache task_struct::flags in sched_submit_work()

Valentin Schneider (19):
      ARM, sched/topology: Remove SD_SHARE_POWERDOMAIN
      ARM, sched/topology: Revert back to default scheduler topology
      sched/topology: Split out SD_* flags declaration to its own file
      sched/topology: Define and assign sched_domain flag metadata
      sched/topology: Verify SD_* flags setup when sched_debug is on
      sched/debug: Output SD flag names rather than their values
      sched/topology: Introduce SD metaflag for flags needing > 1 groups
      sched/topology: Use prebuilt SD flag degeneration mask
      sched/topology: Remove SD_SERIALIZE degeneration special case
      sched/topology: Propagate SD_ASYM_CPUCAPACITY upwards
      sched/topology: Mark SD_PREFER_SIBLING as SDF_NEEDS_GROUPS
      sched/topology: Mark SD_BALANCE_WAKE as SDF_NEEDS_GROUPS
      sched/topology: Mark SD_SERIALIZE as SDF_NEEDS_GROUPS
      sched/topology: Mark SD_ASYM_PACKING as SDF_NEEDS_GROUPS
      sched/topology: Mark SD_OVERLAP as SDF_NEEDS_GROUPS
      sched/topology: Mark SD_NUMA as SDF_NEEDS_GROUPS
      sched/topology: Move sd_flag_debug out of linux/sched/topology.h
      sched/topology: Move SD_DEGENERATE_GROUPS_MASK out of linux/sched/topology.h
      sched/topology: Move sd_flag_debug out of #ifdef CONFIG_SYSCTL

Vincent Donnefort (1):
      sched/debug: Add new tracepoint to track cpu_capacity

Vincent Guittot (5):
      sched/numa: Use runnable_avg to classify node
      sched/fair: Relax constraint on task's load during load balance
      sched/fair: Reduce minimal imbalance threshold
      sched/fair: Minimize concurrent LBs between domain level
      sched/fair: Reduce busy load balance interval

Xianting Tian (1):
      sched/fair: Remove the force parameter of update_tg_load_avg()

Xunlei Pang (1):
      sched/fair: Fix wrong cpu selecting from isolated domain

YueHaibing (1):
      sched: Remove unused inline function uclamp_bucket_base_value()


 MAINTAINERS                                    |   1 +
 arch/arm/kernel/topology.c                     |  26 ---
 include/linux/sched.h                          |   5 +-
 include/linux/sched/mm.h                       |   3 +
 include/linux/sched/sd_flags.h                 | 156 +++++++++++++++++
 include/linux/sched/topology.h                 |  37 ++--
 include/linux/syscalls.h                       |   2 +-
 include/trace/events/sched.h                   |   4 +
 include/uapi/linux/membarrier.h                |  26 +++
 kernel/sched/core.c                            |  13 +-
 kernel/sched/deadline.c                        |  34 +++-
 kernel/sched/debug.c                           |  56 ++++++-
 kernel/sched/fair.c                            | 103 ++++++++----
 kernel/sched/features.h                        |   2 +-
 kernel/sched/membarrier.c                      | 136 +++++++++++----
 kernel/sched/topology.c                        |  69 ++++----
 tools/testing/selftests/rseq/param_test.c      | 223 ++++++++++++++++++++++++-
 tools/testing/selftests/rseq/rseq-x86.h        |  57 +++++++
 tools/testing/selftests/rseq/run_param_test.sh |   2 +
 19 files changed, 803 insertions(+), 152 deletions(-)
 create mode 100644 include/linux/sched/sd_flags.h