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Message-ID: <Ze7o7FAK8QkRLg7o@gmail.com>
Date: Mon, 11 Mar 2024 12:20:12 +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 v6.9
Linus,
Please pull the latest locking/core git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking-core-2024-03-11
# HEAD: ce3576ebd62d99f79c1dc98824e2ef6d6ab68434 locking/rtmutex: Use try_cmpxchg_relaxed() in mark_rt_mutex_waiters()
Locking changes for v6.9:
- Micro-optimize local_xchg() and the rtmutex code on x86
- Fix percpu-rwsem contention tracepoints
- Simplify debugging Kconfig dependencies
- Update/clarify the documentation of atomic primitives
- Misc cleanups
Thanks,
Ingo
------------------>
Mark Rutland (1):
locking/atomic: scripts: Clarify ordering of conditional atomics
Namhyung Kim (1):
locking/percpu-rwsem: Trigger contention tracepoints only if contended
Uros Bizjak (2):
locking/x86: Implement local_xchg() using CMPXCHG without the LOCK prefix
locking/rtmutex: Use try_cmpxchg_relaxed() in mark_rt_mutex_waiters()
Waiman Long (4):
locking/qspinlock: Fix 'wait_early' set but not used warning
locking/mutex: Simplify <linux/mutex.h>
locking/rwsem: Clarify that RWSEM_READER_OWNED is just a hint
locking/rwsem: Make DEBUG_RWSEMS and PREEMPT_RT mutually exclusive
arch/x86/include/asm/local.h | 16 ++++++-
include/linux/atomic/atomic-arch-fallback.h | 46 +++++++++++++++----
include/linux/atomic/atomic-instrumented.h | 68 ++++++++++++++++++++++------
include/linux/atomic/atomic-long.h | 24 ++++++++--
include/linux/mutex.h | 8 +---
kernel/locking/percpu-rwsem.c | 11 +++--
kernel/locking/qspinlock_paravirt.h | 2 +-
kernel/locking/rtmutex.c | 9 ++--
kernel/locking/rwsem.c | 6 +--
lib/Kconfig.debug | 4 +-
scripts/atomic/kerneldoc/add_unless | 1 +
scripts/atomic/kerneldoc/cmpxchg | 1 +
scripts/atomic/kerneldoc/dec_if_positive | 1 +
scripts/atomic/kerneldoc/dec_unless_positive | 1 +
scripts/atomic/kerneldoc/inc_not_zero | 1 +
scripts/atomic/kerneldoc/inc_unless_negative | 1 +
scripts/atomic/kerneldoc/try_cmpxchg | 3 +-
17 files changed, 154 insertions(+), 49 deletions(-)
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