linux-kernel - [GIT PULL] scheduler changes for v6.2

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Date:   Mon, 12 Dec 2022 21:49:27 +0100
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 v6.2

Linus,

Please pull the latest scheduler tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-core-2022-12-12

   # HEAD: d6962c4fe8f96f7d384d6489b6b5ab5bf3e35991 sched: Clear ttwu_pending after enqueue_task()

Scheduler changes for v6.2:

 - Implement persistent user-requested affinity: introduce affinity_context::user_mask
   and unconditionally preserve the user-requested CPU affinity masks, for long-lived
   tasks to better interact with cpusets & CPU hotplug events over longer timespans,
   without destroying the original affinity intent if the underlying topology changes.

 - Uclamp updates: fix relationship between uclamp and fits_capacity()

 - PSI fixes

 - Misc fixes & updates.

 Thanks,

	Ingo

------------------>
Chengming Zhou (2):
      sched/psi: Fix avgs_work re-arm in psi_avgs_work()
      sched/psi: Use task->psi_flags to clear in CPU migration

Hao Lee (1):
      sched/psi: Fix possible missing or delayed pending event

Pierre Gondois (1):
      sched/fair: Check if prev_cpu has highest spare cap in feec()

Qais Yousef (9):
      sched/uclamp: Fix relationship between uclamp and migration margin
      sched/uclamp: Make task_fits_capacity() use util_fits_cpu()
      sched/uclamp: Fix fits_capacity() check in feec()
      sched/uclamp: Make select_idle_capacity() use util_fits_cpu()
      sched/uclamp: Make asym_fits_capacity() use util_fits_cpu()
      sched/uclamp: Make cpu_overutilized() use util_fits_cpu()
      sched/uclamp: Cater for uclamp in find_energy_efficient_cpu()'s early exit condition
      sched/fair: Detect capacity inversion
      sched/fair: Consider capacity inversion in util_fits_cpu()

Suren Baghdasaryan (1):
      sched/psi: Stop relying on timer_pending() for poll_work rescheduling

Tianchen Ding (1):
      sched: Clear ttwu_pending after enqueue_task()

Waiman Long (5):
      sched: Add __releases annotations to affine_move_task()
      sched: Introduce affinity_context
      sched: Always preserve the user requested cpumask
      sched: Enforce user requested affinity
      sched: Always clear user_cpus_ptr in do_set_cpus_allowed()


 include/linux/psi_types.h |   4 +
 include/linux/sched.h     |   3 -
 kernel/sched/core.c       | 259 ++++++++++++++++++++++++---------------
 kernel/sched/deadline.c   |   7 +-
 kernel/sched/fair.c       | 303 ++++++++++++++++++++++++++++++++++++++++------
 kernel/sched/psi.c        | 100 ++++++++++++---
 kernel/sched/sched.h      |  92 ++++++++++++--
 kernel/sched/stats.h      |  22 +---
 8 files changed, 607 insertions(+), 183 deletions(-)