Messages in this thread | | | Date | Mon, 11 Mar 2024 12:20:12 +0100 | From | Ingo Molnar <> | Subject | [GIT PULL] locking changes for v6.9 |
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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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