linux-kernel - [GIT PULL] locking changes for v5.18

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Date:   Mon, 21 Mar 2022 12:11:44 +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>,
        Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] locking changes for v5.18

Linus,

Please pull the latest locking/core git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking-core-2022-03-21

   # HEAD: cd27ccfc727e99352321c0c75012ab9c5a90321e jump_label: Refactor #ifdef of struct static_key

Changes in this cycle were:

 - bitops & cpumask:
    - Always inline various generic helpers, to improve code generation,
      but also for instrumentation, found by noinstr validation.
    - Add a x86-specific cpumask_clear_cpu() helper to improve code generation

 - atomics:
    - Fix atomic64_{read_acquire,set_release} fallbacks

 - lockdep:
    - Fix /proc/lockdep output loop iteration for classes
    - Fix /proc/lockdep potential access to invalid memory
    - minor cleanups
    - Add Mark Rutland as reviewer for atomic primitives

 - jump labels:
    - Clean up the code a bit

 - misc:
    - Add __sched annotations to percpu rwsem primitives
    - Enable RT_MUTEXES on PREEMPT_RT by default
    - Stray v8086_mode() inlining fix, result of noinstr objtool validation

 Thanks,

	Ingo

------------------>
Borislav Petkov (4):
      asm-generic/bitops: Always inline all bit manipulation helpers
      cpumask: Always inline helpers which use bit manipulation functions
      cpumask: Add a x86-specific cpumask_clear_cpu() helper
      x86/ptrace: Always inline v8086_mode() for instrumentation

Mark Rutland (2):
      MAINTAINERS: add myself as reviewer for atomics
      atomics: Fix atomic64_{read_acquire,set_release} fallbacks

Masahiro Yamada (2):
      jump_label: Avoid unneeded casts in STATIC_KEY_INIT_{TRUE,FALSE}
      jump_label: Refactor #ifdef of struct static_key

Minchan Kim (1):
      locking: Add missing __sched attributes

Sebastian Andrzej Siewior (2):
      locking/local_lock: Make the empty local_lock_*() function a macro.
      locking: Enable RT_MUTEXES by default on PREEMPT_RT.

Waiman Long (2):
      locking/lockdep: Avoid potential access of invalid memory in lock_class
      locking/lockdep: Iterate lock_classes directly when reading lockdep files

Xiu Jianfeng (1):
      lockdep: Use memset_startat() helper in reinit_class()


 MAINTAINERS                                        |  1 +
 arch/x86/include/asm/cpumask.h                     | 10 +++++
 arch/x86/include/asm/ptrace.h                      |  2 +-
 include/asm-generic/bitops/instrumented-atomic.h   | 12 ++---
 .../asm-generic/bitops/instrumented-non-atomic.h   | 16 +++----
 include/linux/atomic/atomic-arch-fallback.h        | 38 +++++++++++++---
 include/linux/cpumask.h                            | 18 ++++----
 include/linux/jump_label.h                         | 13 ++----
 include/linux/local_lock_internal.h                |  6 +--
 init/Kconfig                                       |  1 +
 kernel/locking/lockdep.c                           | 43 ++++++++++--------
 kernel/locking/lockdep_internals.h                 |  6 ++-
 kernel/locking/lockdep_proc.c                      | 51 ++++++++++++++++++----
 kernel/locking/percpu-rwsem.c                      |  5 ++-
 kernel/locking/rwsem.c                             |  2 +-
 scripts/atomic/fallbacks/read_acquire              | 11 ++++-
 scripts/atomic/fallbacks/set_release               |  7 ++-
 17 files changed, 168 insertions(+), 74 deletions(-)