[GIT PULL] scheduler updates for v6.1

[Ingo Molnar <mingo@kernel.org>]

Linus,

Please pull the latest sched/core git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-core-2022-10-07

   # HEAD: fdf756f7127185eeffe00e918e66dfee797f3625 sched: Fix more TASK_state comparisons

Scheduler changes for v6.1:

 - Scheduler debuggability:

     - Change most occurances of BUG_ON() to WARN_ON_ONCE()

     - Reorganize & fix TASK_ state comparisons, turn it into a bitmap

     - Update/fix misc scheduler debugging facilities

 - Load-balancing & regular scheduling:

     - Improve the behavior of the scheduler in presence of lot of
       SCHED_IDLE tasks - in particular they should not impact other
       scheduling classes.

     - Optimize task load tracking, cleanup & fixes

     - Clean up & simplify misc load-balancing code

 - Freezer:

     - Rewrite the core freezer to behave better wrt thawing and be simpler
       in general, by replacing PF_FROZEN with TASK_FROZEN & fixing/adjusting
       all the fallout.

 - Deadline scheduler:

     - Fix the DL capacity-aware code

     - Factor out dl_task_is_earliest_deadline() & replenish_dl_new_period()

     - Relax/optimize locking in task_non_contending()

 - Cleanups:

     - Factor out the update_current_exec_runtime() helper

     - Various cleanups, simplifications

 Thanks,

	Ingo

------------------>
Abel Wu (5):
      sched/fair: Remove redundant check in select_idle_smt()
      sched/fair: Avoid double search on same cpu
      sched/fair: Remove useless check in select_idle_core()
      sched/fair: Default to false in test_idle_cores()
      sched/fair: Cleanup for SIS_PROP

Bing Huang (1):
      sched/fair: Make per-cpu cpumasks static

Chengming Zhou (9):
      sched/fair: Maintain task se depth in set_task_rq()
      sched/fair: Remove redundant cpu_cgrp_subsys->fork()
      sched/fair: Reset sched_avg last_update_time before set_task_rq()
      sched/fair: Update comments in enqueue/dequeue_entity()
      sched/fair: Combine detach into dequeue when migrating task
      sched/fair: Fix another detach on unattached task corner case
      sched/fair: Allow changing cgroup of new forked task
      sched/fair: Move task sched_avg attach to enqueue_task_fair()
      sched/fair: Don't init util/runnable_avg for !fair task

Dietmar Eggemann (3):
      sched/core: Introduce sched_asym_cpucap_active()
      sched/deadline: Make dl_cpuset_cpumask_can_shrink() capacity-aware
      sched/deadline: Use sched_dl_entity's dl_density in dl_task_fits_capacity()

Hao Jia (1):
      sched/fair: Remove unused parameter idle of _nohz_idle_balance()

Ingo Molnar (1):
      sched/all: Change all BUG_ON() instances in the scheduler to WARN_ON_ONCE()

Peter Zijlstra (12):
      sched: Rename task_running() to task_on_cpu()
      freezer: Have {,un}lock_system_sleep() save/restore flags
      freezer,umh: Clean up freezer/initrd interaction
      sched: Change wait_task_inactive()s match_state
      sched: Add TASK_ANY for wait_task_inactive()
      sched/completion: Add wait_for_completion_state()
      sched/wait: Add wait_event_state()
      sched: Widen TAKS_state literals
      freezer,sched: Rewrite core freezer logic
      sched: Show PF_flag holes
      sched: Fix TASK_state comparisons
      sched: Fix more TASK_state comparisons

Shang XiaoJing (4):
      sched: Add update_current_exec_runtime helper
      sched/deadline: Add dl_task_is_earliest_deadline helper
      sched/deadline: Add replenish_dl_new_period helper
      sched/deadline: Move __dl_clear_params out of dl_bw lock

Vincent Guittot (3):
      sched/fair: Make sure to try to detach at least one movable task
      sched/fair: Cleanup loop_max and loop_break
      sched/fair: Move call to list_last_entry() in detach_tasks

Xin Gao (1):
      sched/core: Remove superfluous semicolon

Zhen Lei (1):
      sched/debug: Print each field value left-aligned in sched_show_task()


 drivers/acpi/x86/s2idle.c         |  12 +-
 drivers/android/binder.c          |   4 +-
 drivers/media/pci/pt3/pt3.c       |   4 +-
 drivers/powercap/idle_inject.c    |   2 +-
 drivers/scsi/scsi_transport_spi.c |   7 +-
 fs/cifs/inode.c                   |   4 +-
 fs/cifs/transport.c               |   5 +-
 fs/coredump.c                     |   7 +-
 fs/nfs/file.c                     |   3 +-
 fs/nfs/inode.c                    |  12 +-
 fs/nfs/nfs3proc.c                 |   3 +-
 fs/nfs/nfs4proc.c                 |  14 +--
 fs/nfs/nfs4state.c                |   3 +-
 fs/nfs/pnfs.c                     |   4 +-
 fs/xfs/xfs_trans_ail.c            |   8 +-
 include/linux/completion.h        |   1 +
 include/linux/freezer.h           | 245 ++------------------------------------
 include/linux/sched.h             |  50 +++++---
 include/linux/sunrpc/sched.h      |   7 +-
 include/linux/suspend.h           |   8 +-
 include/linux/umh.h               |   9 +-
 include/linux/wait.h              |  42 +++++--
 init/do_mounts_initrd.c           |  10 +-
 kernel/cgroup/legacy_freezer.c    |  23 ++--
 kernel/exit.c                     |   4 +-
 kernel/fork.c                     |   5 +-
 kernel/freezer.c                  | 133 +++++++++++++++------
 kernel/futex/waitwake.c           |   8 +-
 kernel/hung_task.c                |  16 ++-
 kernel/power/hibernate.c          |  35 ++++--
 kernel/power/main.c               |  18 +--
 kernel/power/process.c            |  10 +-
 kernel/power/suspend.c            |  12 +-
 kernel/power/user.c               |  24 ++--
 kernel/ptrace.c                   |   2 +-
 kernel/sched/autogroup.c          |   3 +-
 kernel/sched/completion.c         |  12 ++
 kernel/sched/core.c               | 103 +++++-----------
 kernel/sched/core_sched.c         |   4 +-
 kernel/sched/cpudeadline.c        |   2 +-
 kernel/sched/cpupri.c             |   2 +-
 kernel/sched/deadline.c           | 115 +++++++++---------
 kernel/sched/fair.c               | 227 +++++++++++++++++------------------
 kernel/sched/rt.c                 |  18 ++-
 kernel/sched/sched.h              |  65 ++++++----
 kernel/sched/stop_task.c          |  11 +-
 kernel/signal.c                   |  14 +--
 kernel/time/hrtimer.c             |   4 +-
 kernel/umh.c                      |  18 ++-
 mm/khugepaged.c                   |   4 +-
 net/sunrpc/sched.c                |  12 +-
 net/unix/af_unix.c                |   8 +-
 52 files changed, 616 insertions(+), 760 deletions(-)