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Linus Torvalds 30c999937f Scheduler changes for v6.1: 
- 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, cleanups & 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
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2022-10-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "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, cleanups & 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"

* tag 'sched-core-2022-10-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
  sched: Fix more TASK_state comparisons
  sched: Fix TASK_state comparisons
  sched/fair: Move call to list_last_entry() in detach_tasks
  sched/fair: Cleanup loop_max and loop_break
  sched/fair: Make sure to try to detach at least one movable task
  sched: Show PF_flag holes
  freezer,sched: Rewrite core freezer logic
  sched: Widen TAKS_state literals
  sched/wait: Add wait_event_state()
  sched/completion: Add wait_for_completion_state()
  sched: Add TASK_ANY for wait_task_inactive()
  sched: Change wait_task_inactive()s match_state
  freezer,umh: Clean up freezer/initrd interaction
  freezer: Have {,un}lock_system_sleep() save/restore flags
  sched: Rename task_running() to task_on_cpu()
  sched/fair: Cleanup for SIS_PROP
  sched/fair: Default to false in test_idle_cores()
  sched/fair: Remove useless check in select_idle_core()
  sched/fair: Avoid double search on same cpu
  sched/fair: Remove redundant check in select_idle_smt()
  ...
2022-10-10 09:10:28 -07:00
..
autosleep.c PM: sleep: fix typos in comments 2021-04-08 19:37:21 +02:00
console.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
energy_model.c PM: EM: convert power field to micro-Watts precision and align drivers 2022-07-15 19:17:30 +02:00
hibernate.c freezer: Have {,un}lock_system_sleep() save/restore flags 2022-09-07 21:53:48 +02:00
Kconfig pm/sleep: Add PM_USERSPACE_AUTOSLEEP Kconfig 2022-07-01 10:39:20 +02:00
main.c freezer,sched: Rewrite core freezer logic 2022-09-07 21:53:50 +02:00
Makefile PM: sleep: Narrow down -DDEBUG on kernel/power/ files 2022-04-13 16:34:01 +02:00
power.h PM: hibernate: Allow ACPI hardware signature to be honoured 2021-12-08 16:06:10 +01:00
poweroff.c kernel/power: constify sysrq_key_op 2020-05-15 14:53:20 +02:00
process.c freezer,sched: Rewrite core freezer logic 2022-09-07 21:53:50 +02:00
qos.c PM: QoS: Add check to make sure CPU freq is non-negative 2022-07-26 20:48:33 +02:00
snapshot.c PM: hibernate: Don't mark comment as kernel-doc 2022-04-13 17:09:37 +02:00
suspend_test.c PM: suspend: fix return value of __setup handler 2022-03-01 18:55:07 +01:00
suspend.c Scheduler changes for v6.1: 2022-10-10 09:10:28 -07:00
swap.c PM: Use the enum req_op and blk_opf_t types 2022-07-14 12:14:33 -06:00
user.c freezer: Have {,un}lock_system_sleep() save/restore flags 2022-09-07 21:53:48 +02:00
wakelock.c PM: wakeup: simplify the output logic of pm_show_wakelocks() 2022-01-25 18:27:02 +01:00