linux-kernel - [GIT PULL] Scheduler updates for v6.18

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Message-ID: <aNagfRAEhfbLelo9@gmail.com>
Date: Fri, 26 Sep 2025 16:17:33 +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>,
	Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Steven Rostedt <rostedt@...dmis.org>, Mel Gorman <mgorman@...e.de>,
	Tejun Heo <tj@...nel.org>, Valentin Schneider <vschneid@...hat.com>,
	Shrikanth Hegde <sshegde@...ux.ibm.com>
Subject: [GIT PULL] Scheduler updates for v6.18

Linus,

Please pull the latest sched/core Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-core-2025-09-26

   # HEAD: 45b7f780739a3145aeef24d2dfa02517a6c82ed6 sched: Fix some typos in include/linux/preempt.h

( Merge note: we've stopped using Link tags for the purpose of tip-bot 
  lkml email notifications during the v6.18 development window, and 
  thus commits applied after September 15-ish only have Links if they 
  are particularly informative. Commits before that still have the 
  old-style Link tags. )

Scheduler updates for v6.18:

Core scheduler changes:

 - Make migrate_{en,dis}able() inline, to improve performance
   (Menglong Dong)

 - Move STDL_INIT() functions out-of-line (Peter Zijlstra)

 - Unify the SCHED_{SMT,CLUSTER,MC} Kconfig (Peter Zijlstra)

Fair scheduling:

 - Defer throttling when tasks exit to user-space, to reduce the
   chance & impact of throttle-preemption with held locks and
   other resources. (Aaron Lu, Valentin Schneider)

 - Get rid of sched_domains_curr_level hack for tl->cpumask(),
   as the warning was getting triggered on certain topologies.
   (Peter Zijlstra)

Misc cleanups & fixes:

 - Header cleanups (Menglong Dong)

 - Fix race in push_dl_task() (Harshit Agarwal)

 Thanks,

	Ingo

------------------>
Aaron Lu (6):
      sched/fair: Task based throttle time accounting
      sched/fair: Get rid of throttled_lb_pair()
      sched/fair: Propagate load for throttled cfs_rq
      sched/fair: update_cfs_group() for throttled cfs_rqs
      sched/fair: Do not special case tasks in throttled hierarchy
      sched/fair: Do not balance task to a throttled cfs_rq

Harshit Agarwal (1):
      sched/deadline: Fix race in push_dl_task()

Menglong Dong (4):
      arch: Add the macro COMPILE_OFFSETS to all the asm-offsets.c
      rcu: Replace preempt.h with sched.h in include/linux/rcupdate.h
      sched: Make migrate_{en,dis}able() inline
      sched: Fix some typos in include/linux/preempt.h

Peter Zijlstra (3):
      sched/fair: Get rid of sched_domains_curr_level hack for tl->cpumask()
      sched: Move STDL_INIT() functions out-of-line
      sched: Unify the SCHED_{SMT,CLUSTER,MC} Kconfig

Valentin Schneider (3):
      sched/fair: Add related data structure for task based throttle
      sched/fair: Implement throttle task work and related helpers
      sched/fair: Switch to task based throttle model


 Kbuild                               |  13 +-
 arch/Kconfig                         |  38 +++
 arch/alpha/kernel/asm-offsets.c      |   1 +
 arch/arc/kernel/asm-offsets.c        |   1 +
 arch/arm/Kconfig                     |  18 +-
 arch/arm/kernel/asm-offsets.c        |   2 +
 arch/arm64/Kconfig                   |  26 +-
 arch/arm64/kernel/asm-offsets.c      |   1 +
 arch/csky/kernel/asm-offsets.c       |   1 +
 arch/hexagon/kernel/asm-offsets.c    |   1 +
 arch/loongarch/Kconfig               |  19 +-
 arch/loongarch/kernel/asm-offsets.c  |   2 +
 arch/m68k/kernel/asm-offsets.c       |   1 +
 arch/microblaze/kernel/asm-offsets.c |   1 +
 arch/mips/Kconfig                    |  16 +-
 arch/mips/kernel/asm-offsets.c       |   2 +
 arch/nios2/kernel/asm-offsets.c      |   1 +
 arch/openrisc/kernel/asm-offsets.c   |   1 +
 arch/parisc/Kconfig                  |   9 +-
 arch/parisc/kernel/asm-offsets.c     |   1 +
 arch/powerpc/Kconfig                 |  11 +-
 arch/powerpc/include/asm/topology.h  |   2 +
 arch/powerpc/kernel/asm-offsets.c    |   1 +
 arch/powerpc/kernel/smp.c            |  27 +-
 arch/riscv/Kconfig                   |   9 +-
 arch/riscv/kernel/asm-offsets.c      |   1 +
 arch/s390/Kconfig                    |   8 +-
 arch/s390/kernel/asm-offsets.c       |   1 +
 arch/s390/kernel/topology.c          |  20 +-
 arch/sh/kernel/asm-offsets.c         |   1 +
 arch/sparc/Kconfig                   |  20 +-
 arch/sparc/kernel/asm-offsets.c      |   1 +
 arch/um/kernel/asm-offsets.c         |   2 +
 arch/x86/Kconfig                     |  27 +-
 arch/x86/kernel/smpboot.c            |   8 +-
 arch/xtensa/kernel/asm-offsets.c     |   1 +
 include/linux/preempt.h              |  11 +-
 include/linux/rcupdate.h             |   2 +-
 include/linux/sched.h                | 118 +++++++++
 include/linux/sched/topology.h       |  29 +--
 include/linux/topology.h             |   2 +-
 kernel/bpf/verifier.c                |   1 +
 kernel/sched/core.c                  |  66 ++---
 kernel/sched/deadline.c              |  73 ++++--
 kernel/sched/fair.c                  | 489 +++++++++++++++++++++--------------
 kernel/sched/pelt.h                  |   4 +-
 kernel/sched/rq-offsets.c            |  12 +
 kernel/sched/sched.h                 |   7 +-
 kernel/sched/topology.c              |  73 ++++--
 49 files changed, 686 insertions(+), 496 deletions(-)
 create mode 100644 kernel/sched/rq-offsets.c