locking primitives

Most active threads (last 7 days)

No active threads in the last 7 days.

Recent patches

Latest 30 postings or standalone patches (up to 30), newest first. Counts below cover matching patches in linux-arm-kernel touching this subsystem.

• entry: Classify very early hardirq entry and return-tail callbacks v2 · 2 matching patches

  Entire posting: PENDING · 1 of 13 reviewed Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [RFC PATCH v2 04/13] lockdep: Use raw access for pinned hardirq state 2026-10-28
  • [RFC PATCH v2 08/13] lockdep: Prepare IRQ-on state from a hardirq return tail 2026-10-28
  2026-10-28 · Karl Mehltretter <hidden>
• entry, tracing: Classify early hardirq entry and return tails rfc · 2 matching patches

  Entire posting: Pending Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [RFC PATCH 02/12] lockdep: Use raw access for pinned hardirq state 2026-10-22
  • [RFC PATCH 06/12] lockdep: Prepare IRQ-on state from a hardirq return tail 2026-10-22
  2026-10-22 · Karl Mehltretter <hidden>
• [PATCH v3] locking/hqlock_core: restore missing call in contention detection logic 2026-05-12 · Fedorov Nikita <hidden>
• [RFC PATCH v3 5/7] kernel: introduce general hq-spinlock support 2026-04-15 · Fedorov Nikita <hidden>
• [RFC PATCH v3 4/7] hq-spinlock: add hq-spinlock tunables and debug statistics 2026-04-15 · Fedorov Nikita <hidden>
• [RFC PATCH v3 3/7] hq-spinlock: add contention detection 2026-04-15 · Fedorov Nikita <hidden>
• [RFC PATCH v3 2/7] hq-spinlock: implement inner logic 2026-04-15 · Fedorov Nikita <hidden>
• [RFC PATCH v3 1/7] kernel: add hq-spinlock types 2026-04-15 · Fedorov Nikita <hidden>
• hwspinlock: move device alloc into core and refactor includes v5 · 3 matching patches

  Entire posting: PENDING · 5 of 15 reviewed Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH v5 04/15] hwspinlock: add callback to fill private data of a hwspinlock 2026-03-19
  • [PATCH v5 10/15] hwspinlock: handle hwspinlock device allocation in the core 2026-03-19
  • [PATCH v5 15/15] hwspinlock/treewide: refactor consumer.h from public header 2026-03-19
  2026-03-19 · Wolfram Sang <wsa+renesas@sang-engineering.com>
• hwspinlock: move device alloc into core and refactor includes v4 · 1 matching patch

  Entire posting: SUPERSEDED Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH v4 15/15] hwspinlock/treewide: refactor consumer.h from public header 2026-03-10
  2026-03-10 · Wolfram Sang <wsa+renesas@sang-engineering.com>
• hwspinlock: move device alloc into core and refactor includes v3 · 1 matching patch

  Entire posting: SUPERSEDED Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH v3 15/15] hwspinlock/treewide: refactor consumer.h from public header 2026-03-03
  2026-03-03 · Wolfram Sang <wsa+renesas@sang-engineering.com>
• hwspinlock: move device alloc into core and refactor includes v2 · 1 matching patch

  Entire posting: SUPERSEDED Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [RFC PATCH v2 13/13] hwspinlock: refactor consumer.h from public header 2026-02-15
  2026-02-15 · Wolfram Sang <wsa+renesas@sang-engineering.com>
• hwspinlock: refactor headers into public provider/consumer pair rfc · 1 matching patch

  Entire posting: Pending Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [RFC PATCH 2/4] hwspinlock: refactor existing headers into consumer.h 2026-01-25
  2026-01-25 · Wolfram Sang <wsa+renesas@sang-engineering.com>
• KVM: lockdep improvements v5 · 2 matching patches

  Entire posting: LANDED Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH v5 1/6] locking/mutex: implement mutex_trylock_nested 2025-05-12
  • [PATCH v5 2/6] locking/mutex: implement mutex_lock_killable_nest_lock 2025-05-12
  2025-05-12 · Maxim Levitsky <hidden>
• KVM: lockdep improvements v4 · 2 matching patches

  Entire posting: SUPERSEDED Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH v4 1/5] locking/mutex: implement mutex_trylock_nested 2025-04-30
  • [PATCH v4 4/5] locking/mutex: implement mutex_lock_killable_nest_lock 2025-04-30
  2025-04-30 · Maxim Levitsky <hidden>
• KVM: lockdep improvements v3 · 1 matching patch

  Entire posting: SUPERSEDED Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH v3 3/4] locking/mutex: implement mutex_lock_killable_nest_lock 2025-04-30
  2025-04-30 · Maxim Levitsky <hidden>
• KVM: extract lock_all_vcpus/unlock_all_vcpus v2 · 1 matching patch

  Entire posting: Pending Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH v2 1/4] locking/mutex: implement mutex_trylock_nested 2025-04-09
  2025-04-09 · Maxim Levitsky <hidden>
• Resilient Queued Spin Lock v4 · 4 matching patches

  Entire posting: PENDING · 24 of 25 landed Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH bpf-next v4 01/25] locking: Move MCS struct definition to public header 2025-03-16
  • [PATCH bpf-next v4 02/25] locking: Move common qspinlock helpers to a private header 2025-03-16
  • [PATCH bpf-next v4 03/25] locking: Allow obtaining result of arch_mcs_spin_lock_contended 2025-03-16
  • [PATCH bpf-next v4 09/25] rqspinlock: Protect pending bit owners from stalls 2025-03-16
  2025-03-16 · Kumar Kartikeya Dwivedi <memxor@gmail.com>
• Resilient Queued Spin Lock v3 · 18 matching patches

  Entire posting: SUPERSEDED Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH bpf-next v3 01/25] locking: Move MCS struct definition to public header 2025-03-03
  • [PATCH bpf-next v3 02/25] locking: Move common qspinlock helpers to a private header 2025-03-03
  • [PATCH bpf-next v3 03/25] locking: Allow obtaining result of arch_mcs_spin_lock_contended 2025-03-03
  • [PATCH bpf-next v3 04/25] locking: Copy out qspinlock.c to rqspinlock.c 2025-03-03
  • [PATCH bpf-next v3 05/25] rqspinlock: Add rqspinlock.h header 2025-03-03
  • [PATCH bpf-next v3 06/25] rqspinlock: Drop PV and virtualization support 2025-03-03
  • [PATCH bpf-next v3 07/25] rqspinlock: Add support for timeouts 2025-03-03
  • [PATCH bpf-next v3 08/25] rqspinlock: Hardcode cond_acquire loops for arm64 2025-03-03
  • [PATCH bpf-next v3 09/25] rqspinlock: Protect pending bit owners from stalls 2025-03-03
  • [PATCH bpf-next v3 10/25] rqspinlock: Protect waiters in queue from stalls 2025-03-03
  • [PATCH bpf-next v3 11/25] rqspinlock: Protect waiters in trylock fallback from stalls 2025-03-03
  • [PATCH bpf-next v3 12/25] rqspinlock: Add deadlock detection and recovery 2025-03-03
  • [PATCH bpf-next v3 13/25] rqspinlock: Add a test-and-set fallback 2025-03-03
  • [PATCH bpf-next v3 14/25] rqspinlock: Add basic support for CONFIG_PARAVIRT 2025-03-03
  • [PATCH bpf-next v3 15/25] rqspinlock: Add helper to print a splat on timeout or deadlock 2025-03-03
  • [PATCH bpf-next v3 17/25] rqspinlock: Add locktorture support 2025-03-03
  • [PATCH bpf-next v3 18/25] rqspinlock: Add entry to Makefile, MAINTAINERS 2025-03-03
  • [PATCH bpf-next v3 22/25] bpf: Introduce rqspinlock kfuncs 2025-03-03
  2025-03-03 · Kumar Kartikeya Dwivedi <memxor@gmail.com>
• Resilient Queued Spin Lock v2 · 18 matching patches

  Entire posting: SUPERSEDED · 1 of 26 landed Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH bpf-next v2 01/26] locking: Move MCS struct definition to public header 2025-02-06
  • [PATCH bpf-next v2 02/26] locking: Move common qspinlock helpers to a private header 2025-02-06
  • [PATCH bpf-next v2 03/26] locking: Allow obtaining result of arch_mcs_spin_lock_contended 2025-02-06
  • [PATCH bpf-next v2 04/26] locking: Copy out qspinlock.c to rqspinlock.c 2025-02-06
  • [PATCH bpf-next v2 05/26] rqspinlock: Add rqspinlock.h header 2025-02-06
  • [PATCH bpf-next v2 06/26] rqspinlock: Drop PV and virtualization support 2025-02-06
  • [PATCH bpf-next v2 07/26] rqspinlock: Add support for timeouts 2025-02-06
  • [PATCH bpf-next v2 08/26] rqspinlock: Protect pending bit owners from stalls 2025-02-06
  • [PATCH bpf-next v2 09/26] rqspinlock: Protect waiters in queue from stalls 2025-02-06
  • [PATCH bpf-next v2 10/26] rqspinlock: Protect waiters in trylock fallback from stalls 2025-02-06
  • [PATCH bpf-next v2 11/26] rqspinlock: Add deadlock detection and recovery 2025-02-06
  • [PATCH bpf-next v2 12/26] rqspinlock: Add a test-and-set fallback 2025-02-06
  • [PATCH bpf-next v2 13/26] rqspinlock: Add basic support for CONFIG_PARAVIRT 2025-02-06
  • [PATCH bpf-next v2 14/26] rqspinlock: Add helper to print a splat on timeout or deadlock 2025-02-06
  • [PATCH bpf-next v2 16/26] rqspinlock: Add locktorture support 2025-02-06
  • [PATCH bpf-next v2 17/26] rqspinlock: Hardcode cond_acquire loops to asm-generic implementation 2025-02-06
  • [PATCH bpf-next v2 18/26] rqspinlock: Add entry to Makefile, MAINTAINERS 2025-02-06
  • [PATCH bpf-next v2 22/26] bpf: Introduce rqspinlock kfuncs 2025-02-06
  2025-02-06 · Kumar Kartikeya Dwivedi <memxor@gmail.com>
• REVIEWED · 3 reviews, 1 by a maintainer [PATCH v2] treewide: const qualify ctl_tables where applicable 2025-01-10 · Joel Granados <joel.granados@kernel.org>
• [PATCH] treewide: const qualify ctl_tables where applicable 2025-01-09 · Joel Granados <joel.granados@kernel.org>
• LANDED [PATCH v3] Avoid memory barrier in read_seqcount() through load acquire 2024-09-12 · Christoph Lameter via B4 Relay <devnull+cl.gentwo.org@kernel.org>
• [PATCH v2] Avoid memory barrier in read_seqcount() through load acquire 2024-08-19 · Christoph Lameter via B4 Relay <devnull+cl.gentwo.org@kernel.org>
• [PATCH RFC] Avoid memory barrier in read_seqcount() through load acquire 2024-08-13 · Christoph Lameter via B4 Relay <devnull+cl.gentwo.org@kernel.org>
• treewide: add missing MODULE_DESCRIPTION() macros v1 · 1 matching patch

  Entire posting: REVIEWED · 4 of 5 landed Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH 5/5] locking/ww_mutex/test: add MODULE_DESCRIPTION() 2024-07-30
  2024-07-30 · Jeff Johnson <hidden>
• mm/init/kernel: missing-prototypes warnings v1 · 1 matching patch

  Entire posting: PENDING · 12 of 14 landed Open cover letterLifecycle progress covers the full posting, including patches outside this subsystem and inbox.

  • [PATCH 06/14] locking: add lockevent_read() prototype 2023-05-17
  2023-05-17 · Arnd Bergmann <arnd@kernel.org>
• [PATCH] lockdep: Zap lock classes with debug_locks == false again 2022-03-15 · Cheng Jui Wang <hidden>
• LANDED [PATCH] lockdep: fix -Wunused-parameter for _THIS_IP_ 2022-03-14 · Nick Desaulniers <ndesaulniers@google.com>
• LANDED [PATCH] lockdep: Correct lock_classes index mapping 2022-02-10 · Cheng Jui Wang <hidden>