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-sh (capped at 30), ordered by date desc.

• STALE604d REVIEWED: 2 (2M) [PATCH v2 resend2] locking/spinlocks: Make __raw_* lock ops static
  2024-10-02 · Geert Uytterhoeven <geert+renesas@glider.be>
• DORMANTno replies REVIEWED: 2 (2M) [PATCH resend v2] locking/spinlocks: Make __raw_* lock ops static
  2024-05-02 · Geert Uytterhoeven <geert+renesas@glider.be>
• STALE818d REVIEWED: 2 (2M) [PATCH v2] locking/spinlocks: Make __raw_* lock ops static
  2024-03-04 · Geert Uytterhoeven <geert+renesas@glider.be>
• STALE818d [PATCH/RFC] locking/spinlocks: Make __raw_* lock ops static
  2024-03-01 · Geert Uytterhoeven <geert+renesas@glider.be>
• STALE1074d [PATCH 06/14] locking: add lockevent_read() prototype
  2023-05-17 · Arnd Bergmann <arnd@kernel.org>
• STALE1368d LANDED: 6 (6M) [PATCH v4 10/14] locking/percpu-rwsem: Add percpu_is_write_locked() and percpu_is_read_locked()
  2022-08-29 · Marco Elver <elver@google.com>
• STALE1371d REVIEWED: 5 (5M) [PATCH v3 10/14] locking/percpu-rwsem: Add percpu_is_write_locked() and percpu_is_read_locked()
  2022-07-04 · Marco Elver <elver@google.com>
• STALE1430d [PATCH v2 09/13] locking/percpu-rwsem: Add percpu_is_write_locked() and percpu_is_read_locked()
  2022-06-28 · Marco Elver <elver@google.com>
• STALE1647d [PATCH v2] locking: Fixup write_lock_nested() implementation.
  2021-11-23 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE1647d [PATCH] locking: Fixup write_lock_nested() implementation.
  2021-11-23 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE2615d [PATCH v5 3/3] locking/rwsem: Optimize down_read_trylock()
  2019-03-22 · Waiman Long <longman@redhat.com>
• STALE2615d [PATCH v5 2/3] locking/rwsem: Remove rwsem-spinlock.c & use rwsem-xadd.c for all archs
  2019-03-22 · Waiman Long <longman@redhat.com>
• STALE2615d [PATCH v5 1/3] locking/rwsem: Remove arch specific rwsem files
  2019-03-22 · Waiman Long <longman@redhat.com>
• STALE2655d [PATCH v4 3/3] locking/rwsem: Optimize down_read_trylock()
  2019-02-13 · Waiman Long <longman@redhat.com>
• STALE2655d [PATCH v4 2/3] locking/rwsem: Remove rwsem-spinlock.c & use rwsem-xadd.c for all archs
  2019-02-13 · Waiman Long <longman@redhat.com>
• STALE2655d [PATCH v4 1/3] locking/rwsem: Remove arch specific rwsem files
  2019-02-13 · Waiman Long <longman@redhat.com>
• STALE2662d [PATCH v3 2/2] locking/rwsem: Optimize down_read_trylock()
  2019-02-13 · Waiman Long <longman@redhat.com>
• STALE2662d [PATCH v3 1/2] locking/rwsem: Remove arch specific rwsem files
  2019-02-13 · Waiman Long <longman@redhat.com>
• STALE2664d [PATCH v2 2/2] locking/rwsem: Optimize down_read_trylock()
  2019-02-11 · Waiman Long <longman@redhat.com>
• STALE2664d [PATCH v2 1/2] locking/rwsem: Remove arch specific rwsem files
  2019-02-11 · Waiman Long <longman@redhat.com>
• STALE2666d [PATCH] locking/rwsem: Remove arch specific rwsem files
  2019-02-11 · Waiman Long <longman@redhat.com>
• STALE2606d [PATCH-tip 16/22] locking/rwsem: Remove redundant computation of writer lock word
  2019-02-07 · Waiman Long <longman@redhat.com>
• STALE2606d [PATCH-tip 19/22] locking/rwsem: Enable readers spinning on writer
  2019-02-07 · Waiman Long <longman@redhat.com>
• STALE2606d [PATCH-tip 21/22] locking/rwsem: Wake up all readers in wait queue
  2019-02-07 · Waiman Long <longman@redhat.com>
• STALE2606d [PATCH-tip 22/22] locking/rwsem: Ensure an RT task will not spin on reader
  2019-02-07 · Waiman Long <longman@redhat.com>
• STALE2606d [PATCH-tip 20/22] locking/rwsem: Enable count-based spinning on reader
  2019-02-07 · Waiman Long <longman@redhat.com>
• STALE2606d [PATCH-tip 18/22] locking/rwsem: Make rwsem_spin_on_owner() return a tri-state value
  2019-02-07 · Waiman Long <longman@redhat.com>
• STALE2606d [PATCH-tip 17/22] locking/rwsem: Recheck owner if it is not on cpu
  2019-02-07 · Waiman Long <longman@redhat.com>
• STALE2606d [PATCH-tip 15/22] locking/rwsem: Merge owner into count on x86-64
  2019-02-07 · Waiman Long <longman@redhat.com>
• STALE2606d [PATCH-tip 14/22] locking/rwsem: Add more rwsem owner access helpers
  2019-02-07 · Waiman Long <longman@redhat.com>