linux-kernel - [GIT PULL] scheduler changes for v6.4

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Date:   Thu, 27 Apr 2023 22:51:05 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Valentin Schneider <vschneid@...hat.com>
Subject: [GIT PULL] scheduler changes for v6.4


Linus,

Please pull the latest sched/core git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-core-2023-04-27

   # HEAD: f31dcb152a3d0816e2f1deab4e64572336da197d sched/clock: Fix local_clock() before sched_clock_init()

Scheduler changes for v6.4:

 - Allow unprivileged PSI poll()ing

 - Fix performance regression introduced by mm_cid

 - Improve livepatch stalls by adding livepatch task switching to cond_resched(),
   this resolves livepatching busy-loop stalls with certain CPU-bound kthreads.

 - Improve sched_move_task() performance on autogroup configs.

 - On core-scheduling CPUs, avoid selecting throttled tasks to run

 - Misc cleanups, fixes and improvements.

 Thanks,

	Ingo

------------------>
Aaron Thompson (1):
      sched/clock: Fix local_clock() before sched_clock_init()

Domenico Cerasuolo (4):
      sched/psi: Rearrange polling code in preparation
      sched/psi: Rename existing poll members in preparation
      sched/psi: Extract update_triggers side effect
      sched/psi: Allow unprivileged polling of N*2s period

Hao Jia (1):
      sched/core: Avoid selecting the task that is throttled to run when core-sched enable

Josh Poimboeuf (5):
      livepatch: Convert stack entries array to percpu
      livepatch: Skip task_call_func() for current task
      livepatch,sched: Add livepatch task switching to cond_resched()
      vhost: Fix livepatch timeouts in vhost_worker()
      sched/core: Make sched_dynamic_mutex static

Libo Chen (1):
      sched/fair: Fix inaccurate tally of ttwu_move_affine

Mathieu Desnoyers (1):
      sched: Fix performance regression introduced by mm_cid

Schspa Shi (1):
      sched/rt: Fix bad task migration for rt tasks

Shrikanth Hegde (1):
      sched: Interleave cfs bandwidth timers for improved single thread performance at low utilization

Tom Rix (1):
      sched/topology: Make sched_energy_mutex,update static

wuchi (1):
      sched/core: Reduce cost of sched_move_task when config autogroup


 Documentation/accounting/psi.rst |   4 +
 drivers/vhost/vhost.c            |   3 +-
 include/linux/livepatch.h        |   1 +
 include/linux/livepatch_sched.h  |  29 ++
 include/linux/mm_types.h         |  82 ++++-
 include/linux/psi.h              |   2 +-
 include/linux/psi_types.h        |  43 +--
 include/linux/sched.h            |  23 +-
 include/linux/sched/mm.h         |   5 +
 kernel/cgroup/cgroup.c           |   2 +-
 kernel/fork.c                    |   9 +-
 kernel/livepatch/core.c          |   1 +
 kernel/livepatch/transition.c    | 122 +++++--
 kernel/sched/clock.c             |   3 +
 kernel/sched/core.c              | 669 ++++++++++++++++++++++++++++++++++++---
 kernel/sched/deadline.c          |  11 +
 kernel/sched/fair.c              |  22 +-
 kernel/sched/psi.c               | 473 ++++++++++++++-------------
 kernel/sched/rt.c                |  23 ++
 kernel/sched/sched.h             | 243 ++++++++++++--
 kernel/sched/topology.c          |   4 +-
 21 files changed, 1424 insertions(+), 350 deletions(-)
 create mode 100644 include/linux/livepatch_sched.h