linux-kernel - [GIT PULL] locking changes for v6.14

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Message-ID: <Z44J-sXk84xMAFqS@gmail.com>
Date: Mon, 20 Jan 2025 09:31:54 +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>, Will Deacon <will@...nel.org>,
	Waiman Long <longman@...hat.com>, Boqun Feng <boqun.feng@...il.com>,
	Borislav Petkov <bp@...en8.de>
Subject: [GIT PULL] locking changes for v6.14

Linus,

Please pull the latest locking/core Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking-core-2025-01-20

   # HEAD: cb4ccc70344c3dc29a5d0045361a4f0959bc5a6b MAINTAINERS: Add static_call_inline.c to STATIC BRANCH/CALL

Locking changes for v6.14:

 - Lockdep:

    - Improve and fix lockdep bitsize limits, clarify the Kconfig
      documentation (Carlos Llamas)

    - Fix lockdep build warning on Clang related to
      chain_hlock_class_idx() inlining (Andy Shevchenko)

    - Relax the requirements of PROVE_RAW_LOCK_NESTING arch support
      by not tying it to ARCH_SUPPORTS_RT unnecessarily (Waiman Long)

 - Rust integration:

    - Support lock pointers managed by the C side (Lyude Paul)

    - Support guard types (Lyude Paul)

    - Update MAINTAINERS file filters to include the
      Rust locking code (Boqun Feng)

 - Wake-queues:

    - Add raw_spin_*wake() helpers to simplify locking code (John Stultz)

 - SMP cross-calls:

    - Fix potential data update race by evaluating the local cond_func()
      before IPI side-effects (Mathieu Desnoyers)

 - Guard primitives:

    - Ease [c]tags based searches by including the cleanup/guard type
      primitives (Peter Zijlstra)

 - ww_mutexes:

    - Simplify the ww_mutex self-test code via swap() (Thorsten Blum)

 - Static calls:

    - Update the static calls MAINTAINERS file-pattern (Jiri Slaby)

 Thanks,

	Ingo

------------------>
Andy Shevchenko (2):
      lockdep: Mark chain_hlock_class_idx() with __maybe_unused
      lockdep: Move lockdep_assert_locked() under #ifdef CONFIG_PROVE_LOCKING

Boqun Feng (1):
      locking: MAINTAINERS: Start watching Rust locking primitives

Carlos Llamas (3):
      lockdep: Fix upper limit for LOCKDEP_*_BITS configs
      lockdep: Clarify size for LOCKDEP_*_BITS configs
      lockdep: Document MAX_LOCKDEP_CHAIN_HLOCKS calculation

Jiri Slaby (SUSE) (1):
      MAINTAINERS: Add static_call_inline.c to STATIC BRANCH/CALL

John Stultz (1):
      sched/wake_q: Add helper to call wake_up_q after unlock with preemption disabled

Lyude Paul (5):
      rust: sync: Add Lock::from_raw() for Lock<(), B>
      rust: sync: Make Guard::new() public
      rust: sync: Add MutexGuard type alias
      rust: sync: Add SpinLockGuard type alias
      rust: sync: Add lock::Backend::assert_is_held()

Mathieu Desnoyers (1):
      smp/scf: Evaluate local cond_func() before IPI side-effects

Peter Zijlstra (1):
      cleanup, tags: Create tags for the cleanup primitives

Thorsten Blum (1):
      locking/ww_mutex/test: Use swap() macro

Waiman Long (1):
      locking/lockdep: Enforce PROVE_RAW_LOCK_NESTING only if ARCH_SUPPORTS_RT


 MAINTAINERS                        |  9 +++++++--
 include/linux/sched/wake_q.h       | 34 ++++++++++++++++++++++++++++++++++
 kernel/futex/pi.c                  |  5 +----
 kernel/locking/lockdep.c           |  4 +++-
 kernel/locking/lockdep_internals.h |  3 ++-
 kernel/locking/mutex.c             | 16 ++++------------
 kernel/locking/rtmutex.c           | 32 +++++---------------------------
 kernel/locking/test-ww_mutex.c     |  9 +++------
 kernel/smp.c                       |  5 +++--
 lib/Kconfig.debug                  | 22 +++++++++++-----------
 rust/helpers/mutex.c               |  5 +++++
 rust/helpers/spinlock.c            |  5 +++++
 rust/kernel/sync.rs                |  4 ++--
 rust/kernel/sync/lock.rs           | 35 ++++++++++++++++++++++++++++++++++-
 rust/kernel/sync/lock/mutex.rs     | 13 +++++++++++++
 rust/kernel/sync/lock/spinlock.rs  | 13 +++++++++++++
 scripts/tags.sh                    |  7 +++++++
 17 files changed, 152 insertions(+), 69 deletions(-)