linux-kernel - [GIT PULL] SMP cross-call changes for v6.4

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Date:   Thu, 27 Apr 2023 23:09:08 +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>,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: [GIT PULL] SMP cross-call changes for v6.4


Linus,

Please pull the latest smp/core git tree from:

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

   # HEAD: 5c3124975e15c1fadd5af1c61e4d627cf6d97ba2 trace,smp: Trace all smp_function_call*() invocations

SMP cross-CPU function-call updates for v6.4:

 - Remove diagnostics and adjust config for CSD lock diagnostics

 - Add a generic IPI-sending tracepoint, as currently there's no easy
   way to instrument IPI origins: it's arch dependent and for some
   major architectures it's not even consistently available.

 Thanks,

	Ingo

------------------>
Paul E. McKenney (4):
      locking/csd_lock: Add Kconfig option for csd_debug default
      locking/csd_lock: Remove added data from CSD lock debugging
      locking/csd_lock: Remove per-CPU data indirection from CSD lock debugging
      kernel/smp: Make csdlock_debug= resettable

Peter Zijlstra (2):
      trace: Add trace_ipi_send_cpu()
      trace,smp: Trace all smp_function_call*() invocations

Valentin Schneider (7):
      trace: Add trace_ipi_send_cpumask()
      sched, smp: Trace IPIs sent via send_call_function_single_ipi()
      smp: Trace IPIs sent via arch_send_call_function_ipi_mask()
      irq_work: Trace self-IPIs sent via arch_irq_work_raise()
      treewide: Trace IPIs sent via smp_send_reschedule()
      smp: reword smp call IPI comment
      sched, smp: Trace smp callback causing an IPI


 Documentation/admin-guide/kernel-parameters.txt |  17 +-
 arch/alpha/kernel/smp.c                         |   2 +-
 arch/arc/kernel/smp.c                           |   2 +-
 arch/arm/kernel/smp.c                           |   3 +-
 arch/arm/mach-actions/platsmp.c                 |   2 +
 arch/arm64/kernel/smp.c                         |   3 +-
 arch/csky/kernel/smp.c                          |   2 +-
 arch/hexagon/kernel/smp.c                       |   2 +-
 arch/ia64/kernel/smp.c                          |   4 +-
 arch/loongarch/kernel/smp.c                     |   4 +-
 arch/mips/include/asm/smp.h                     |   2 +-
 arch/mips/kernel/rtlx-cmp.c                     |   2 +
 arch/openrisc/kernel/smp.c                      |   2 +-
 arch/parisc/kernel/smp.c                        |   4 +-
 arch/powerpc/kernel/smp.c                       |   6 +-
 arch/powerpc/kvm/book3s_hv.c                    |   3 +
 arch/powerpc/platforms/powernv/subcore.c        |   2 +
 arch/riscv/kernel/smp.c                         |   4 +-
 arch/s390/kernel/smp.c                          |   2 +-
 arch/sh/kernel/smp.c                            |   2 +-
 arch/sparc/kernel/smp_32.c                      |   2 +-
 arch/sparc/kernel/smp_64.c                      |   2 +-
 arch/x86/include/asm/smp.h                      |   2 +-
 arch/x86/kvm/svm/svm.c                          |   4 +
 arch/x86/kvm/x86.c                              |   2 +
 arch/xtensa/kernel/smp.c                        |   2 +-
 include/linux/smp.h                             |  11 +-
 include/trace/events/ipi.h                      |  44 ++++
 kernel/irq_work.c                               |  12 +-
 kernel/sched/core.c                             |  22 +-
 kernel/sched/smp.h                              |   2 +-
 kernel/smp.c                                    | 313 ++++++------------------
 lib/Kconfig.debug                               |   9 +
 virt/kvm/kvm_main.c                             |   3 +
 34 files changed, 219 insertions(+), 281 deletions(-)