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

Most active threads (last 7 days)

• HOTtoday [PATCH v3 00/13] Refcounted interrupt disable and SpinLockIrq for rust (Part 1)
  2026-06-05 05:41 · 1 reply in 7d · Boqun Feng <boqun@kernel.org>

Active reviewers (last 30 days)

• Arnd Bergmann <arnd@arndb.de>
  1 attestation (1 Reported-by) · last on 2026-05-19

Recent patches

Most-recent 30 patches in this subsystem on linux-s390 (capped at 30), ordered by date desc.

• HOTtoday [PATCH v3 05/13] irq & spin_lock: Add counted interrupt disabling/enabling
  2026-06-05 · Boqun Feng <boqun@kernel.org>
• HOTtoday [PATCH v2 05/12] irq & spin_lock: Add counted interrupt disabling/enabling
  2026-05-26 · Boqun Feng <boqun@kernel.org>
• COOLING7d [PATCH] seqlock: Allow UBSAN_ALIGNMENT to fail optimizing
  2026-05-19 · Heiko Carstens <hca@linux.ibm.com>
• COLD18d Re: [PATCH] [RFC] ubsan: turn off UBSAN_ALIGNMENT on s390
  2026-05-15 · Heiko Carstens <hca@linux.ibm.com>
• COLD23d [PATCH 05/11] irq & spin_lock: Add counted interrupt disabling/enabling
  2026-05-08 · Boqun Feng <boqun@kernel.org>
• STALE492d REVIEWED: 5 (3M) [PATCH v2] treewide: const qualify ctl_tables where applicable
  2025-01-10 · Joel Granados <joel.granados@kernel.org>
• STALE510d [PATCH] treewide: const qualify ctl_tables where applicable
  2025-01-09 · Joel Granados <joel.granados@kernel.org>
• STALE608d 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>
• STALE822d REVIEWED: 2 (2M) [PATCH v2] locking/spinlocks: Make __raw_* lock ops static
  2024-03-04 · Geert Uytterhoeven <geert+renesas@glider.be>
• STALE1077d [PATCH 09/11] sysctl: Remove the end element in sysctl table arrays
  2023-06-21 · Joel Granados <hidden>
• STALE1078d [PATCH 06/14] locking: add lockevent_read() prototype
  2023-05-17 · Arnd Bergmann <arnd@kernel.org>
• STALE1326d REVIEWED: 27 (26M) [PATCH v6 1/7] treewide: use prandom_u32_max() when possible, part 1
  2022-10-10 · "Jason A. Donenfeld" <Jason@zx2c4.com>
• STALE1334d REVIEWED: 2 (1M) [PATCH v5 1/7] treewide: use prandom_u32_max() when possible, part 1
  2022-10-08 · "Jason A. Donenfeld" <Jason@zx2c4.com>
• STALE1335d REVIEWED: 2 (1M) [PATCH v4 1/6] treewide: use prandom_u32_max() when possible, mechanically
  2022-10-07 · "Jason A. Donenfeld" <Jason@zx2c4.com>
• STALE1335d REVIEWED: 2 (1M) [PATCH v3 1/5] treewide: use prandom_u32_max() when possible
  2022-10-06 · "Jason A. Donenfeld" <Jason@zx2c4.com>
• STALE1451d [PATCH 4/5] kallsyms: pass buffer size argument in *lookup* APIs
  2022-05-20 · Maninder Singh <hidden>
• STALE1678d Re: [PATCH] locking: remove spin_lock_flags() etc
  2021-10-25 · Peter Zijlstra <peterz@infradead.org>
• STALE1678d LANDED [PATCH] locking: remove spin_lock_flags() etc
  2021-10-22 · Arnd Bergmann <arnd@kernel.org>
• STALE1672d [PATCH v3 2/4] mm: Make generic arch_is_kernel_initmem_freed() do what it says
  2021-09-30 · Christophe Leroy <hidden>
• STALE2154d REVIEWED: 1 (1M) [tip: locking/core] lockdep: Prepare for NMI IRQ state tracking
  2020-07-11 · tip-bot2 for Peter Zijlstra <hidden>
• STALE2154d REVIEWED: 1 (1M) [tip: locking/core] lockdep: Remove lockdep_hardirq{s_enabled,_context}() argument
  2020-07-11 · tip-bot2 for Peter Zijlstra <hidden>
• STALE2154d REVIEWED: 1 (1M) [tip: locking/core] lockdep: Change hardirq{s_enabled,_context} to per-cpu variables
  2020-07-11 · tip-bot2 for Peter Zijlstra <hidden>
• STALE2154d Re: [PATCH v4 7/8] lockdep: Change hardirq{s_enabled,_context} to per-cpu variables
  2020-06-23 · Peter Zijlstra <peterz@infradead.org>
• STALE2522d [PATCH v1 01/22] docs: Documentation/*.txt: rename all ReST files to *.rst
  2019-06-18 · Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
• STALE2522d [PATCH v1 12/22] docs: driver-api: add .rst files from the main dir
  2019-06-18 · Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
• STALE2619d [PATCH v5 3/3] locking/rwsem: Optimize down_read_trylock()
  2019-03-22 · Waiman Long <longman@redhat.com>
• STALE2619d [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>
• STALE2619d [PATCH v5 1/3] locking/rwsem: Remove arch specific rwsem files
  2019-03-22 · Waiman Long <longman@redhat.com>
• STALE2660d [PATCH v4 3/3] locking/rwsem: Optimize down_read_trylock()
  2019-02-13 · Waiman Long <longman@redhat.com>