locking primitives · Maintained

Maintainers

• M Peter Zijlstra <peterz@infradead.org>
• M Ingo Molnar <mingo@redhat.com>
• M Will Deacon <will@kernel.org>
• M Boqun Feng <boqun@kernel.org>
• R Waiman Long <longman@redhat.com>

Paths

• F Documentation/locking/
• F arch/*/include/asm/spinlock*.h
• F include/linux/local_lock*.h
• F include/linux/lockdep*.h
• F include/linux/mutex*.h
• F include/linux/rwlock*.h
• F include/linux/rwsem*.h
• F include/linux/seqlock.h
• F include/linux/spinlock*.h
• F kernel/locking/
• F lib/locking*.[ch]
• F rust/helpers/mutex.c
• F rust/helpers/spinlock.c
• F rust/kernel/sync/lock.rs
• F rust/kernel/sync/lock/
• F rust/kernel/sync/locked_by.rs
• X kernel/locking/locktorture.c

Last 30 days

Recent patches

Most-recent 30 patches in this subsystem on linux-arch (capped at 30), ordered by date desc.

• COLD36d [PATCH 4/5] tracing/lock: Use TRACE_EVENT_FN() for contended_release
  2026-08-04 · Dmitry Ilvokhin <hidden>
• COLD36d [PATCH 3/5] locking/qspinlock: Add contended_release tracepoint
  2026-08-04 · Dmitry Ilvokhin <hidden>
• COOLING13d [PATCH v19 29/40] dept: make dept aware of lockdep_set_lock_cmp_fn() annotation
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• COOLING13d [PATCH v19 24/40] locking/lockdep: prevent various lockdep assertions when lockdep_off()'ed
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• COOLING13d [PATCH v19 04/40] dept: tie to lockdep and IRQ tracing
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• STALE100d [PATCH v3 05/13] irq & spin_lock: Add counted interrupt disabling/enabling
  2026-06-05 · Boqun Feng <boqun@kernel.org>
• STALE101d [PATCH v2 05/12] irq & spin_lock: Add counted interrupt disabling/enabling
  2026-05-26 · Boqun Feng <boqun@kernel.org>
• STALE103d [PATCH] nios2: remove the architecture
  2026-05-18 · Ethan Nelson-Moore <hidden>
• DORMANTno replies [PATCH v3] locking/hqlock_core: restore missing call in contention detection logic
  2026-05-12 · Fedorov Nikita <hidden>
• STALE123d [PATCH 05/11] irq & spin_lock: Add counted interrupt disabling/enabling
  2026-05-08 · Boqun Feng <boqun@kernel.org>
• COLD47d [PATCH v6 7/7] locking: Add contended_release tracepoint to qrwlock
  2026-05-05 · Dmitry Ilvokhin <hidden>
• COLD47d REVIEWED: 8 (8M) [PATCH v6 5/7] locking: Add contended_release tracepoint to qspinlock
  2026-05-05 · Dmitry Ilvokhin <hidden>
• COLD47d REVIEWED: 1 (1M) [PATCH v6 2/7] locking/percpu-rwsem: Extract __percpu_up_read()
  2026-05-05 · Dmitry Ilvokhin <hidden>
• COLD47d REVIEWED: 8 (8M) [PATCH v6 3/7] locking: Add contended_release tracepoint to sleepable locks
  2026-05-05 · Dmitry Ilvokhin <hidden>
• STALE135d [PATCH v5 7/7] locking: Add contended_release tracepoint to qrwlock
  2026-04-16 · Dmitry Ilvokhin <hidden>
• STALE135d [PATCH v5 5/7] locking: Add contended_release tracepoint to qspinlock
  2026-04-16 · Dmitry Ilvokhin <hidden>
• STALE135d REVIEWED: 1 (1M) [PATCH v5 2/7] locking/percpu-rwsem: Extract __percpu_up_read()
  2026-04-16 · Dmitry Ilvokhin <hidden>
• STALE135d REVIEWED: 8 (8M) [PATCH v5 3/7] locking: Add contended_release tracepoint to sleepable locks
  2026-04-16 · Dmitry Ilvokhin <hidden>
• STALE123d [RFC PATCH v3 5/7] kernel: introduce general hq-spinlock support
  2026-04-15 · Fedorov Nikita <hidden>
• STALE123d [RFC PATCH v3 3/7] hq-spinlock: add contention detection
  2026-04-15 · Fedorov Nikita <hidden>
• STALE123d [RFC PATCH v3 4/7] hq-spinlock: add hq-spinlock tunables and debug statistics
  2026-04-15 · Fedorov Nikita <hidden>
• STALE123d [RFC PATCH v3 1/7] kernel: add hq-spinlock types
  2026-04-15 · Fedorov Nikita <hidden>
• STALE123d [RFC PATCH v3 2/7] hq-spinlock: implement inner logic
  2026-04-15 · Fedorov Nikita <hidden>
• STALE150d REVIEWED: 1 (1M) [PATCH v4 2/5] locking/percpu-rwsem: Extract __percpu_up_read()
  2026-03-26 · Dmitry Ilvokhin <hidden>
• STALE150d [PATCH v4 3/5] locking: Add contended_release tracepoint to sleepable locks
  2026-03-26 · Dmitry Ilvokhin <hidden>
• STALE150d [PATCH v4 5/5] locking: Add contended_release tracepoint to spinning locks
  2026-03-26 · Dmitry Ilvokhin <hidden>
• STALE174d REVIEWED: 1 (1M) [PATCH v3 2/4] locking/percpu-rwsem: Extract __percpu_up_read()
  2026-03-18 · Dmitry Ilvokhin <hidden>
• STALE174d [PATCH v3 3/4] locking: Add contended_release tracepoint to sleepable locks
  2026-03-18 · Dmitry Ilvokhin <hidden>
• STALE174d [RFC PATCH v3 4/4] locking: Add contended_release tracepoint to spinning locks
  2026-03-18 · Dmitry Ilvokhin <hidden>
• STALE242d [RFC PATCH v2 2/5] hq-spinlock: proc tunables and debug stats
  2025-12-05 · Anatoly Stepanov <hidden>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE174d [PATCH v3 3/4] locking: Add contended_release tracepoint to sleepable locks
  2026-03-18 · Dmitry Ilvokhin <hidden>
• STALE135d [PATCH v5 7/7] locking: Add contended_release tracepoint to qrwlock
  2026-04-16 · Dmitry Ilvokhin <hidden>
• STALE123d [PATCH 05/11] irq & spin_lock: Add counted interrupt disabling/enabling
  2026-05-08 · Boqun Feng <boqun@kernel.org>
• DORMANTno replies [PATCH v3] locking/hqlock_core: restore missing call in contention detection logic
  2026-05-12 · Fedorov Nikita <hidden>