atomic infrastructure · Maintained

Maintainers

• M Will Deacon <will@kernel.org>
• M Peter Zijlstra <peterz@infradead.org>
• M Boqun Feng <boqun@kernel.org>
• R Mark Rutland <mark.rutland@arm.com>
• R Gary Guo <gary@garyguo.net>

Paths

• F Documentation/atomic_*.txt
• F arch/*/include/asm/atomic*.h
• F include/*/atomic*.h
• F include/linux/refcount.h
• F scripts/atomic/
• F rust/kernel/sync/atomic.rs
• F rust/kernel/sync/atomic/
• F rust/kernel/sync/refcount.rs

Last 30 days

Recent patches

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

• COLD25d [PATCH v4 1/2] rust: sync: atomic: add atomic_per_byte_memcpy
  2026-06-05 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE132d [PATCH v3] rust: page: add byte-wise atomic memory copy methods
  2026-02-13 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE132d [PATCH v2] rust: page: add byte-wise atomic memory copy methods
  2026-02-12 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE154d [PATCH v5 09/36] compiler-context-analysis: Change __cond_acquires to take return value
  2025-12-19 · Marco Elver <elver@google.com>
• STALE174d [PATCH 2/4] rust: helpers: #define __rust_helper
  2025-12-02 · Alice Ryhl <aliceryhl@google.com>
• STALE193d [PATCH v4 09/35] compiler-context-analysis: Change __cond_acquires to take return value
  2025-11-20 · Marco Elver <elver@google.com>
• STALE228d [PATCH v3 09/35] compiler-capability-analysis: Change __cond_acquires to take return value
  2025-09-18 · Marco Elver <elver@google.com>
• STALE456d [RFC PATCH V3 29/43] rv64ilp32_abi: locking/atomic: Use BITS_PER_LONG for scripts
  2025-03-25 · guoren@kernel.org
• STALE494d [PATCH v10 11/18] refcount: introduce __refcount_{add|inc}_not_zero_limited_acquire
  2025-02-13 · Suren Baghdasaryan <surenb@google.com>
• STALE494d [PATCH v10 10/18] refcount: provide ops for cases when object's memory can be reused
  2025-02-13 · Suren Baghdasaryan <surenb@google.com>
• STALE501d [PATCH 1/1] refcount: provide ops for cases when object's memory can be reused
  2025-02-06 · Suren Baghdasaryan <surenb@google.com>
• STALE501d Re: [PATCH] refcount: Strengthen inc_not_zero()
  2025-01-17 · Matthew Wilcox <willy@infradead.org>
• STALE501d [PATCH] refcount: Strengthen inc_not_zero()
  2025-01-15 · Peter Zijlstra <peterz@infradead.org>
• STALE501d [PATCH v9 10/17] refcount: introduce __refcount_{add|inc}_not_zero_limited
  2025-01-11 · Suren Baghdasaryan <surenb@google.com>
• STALE531d [PATCH v8 10/16] refcount: introduce __refcount_{add|inc}_not_zero_limited
  2025-01-09 · Suren Baghdasaryan <surenb@google.com>
• STALE448d [PATCH v7 11/17] refcount: introduce __refcount_{add|inc}_not_zero_limited
  2024-12-26 · Suren Baghdasaryan <surenb@google.com>
• STALE551d [PATCH v6 09/16] refcount: introduce __refcount_{add|inc}_not_zero_limited
  2024-12-16 · Suren Baghdasaryan <surenb@google.com>
• STALE844d [PATCH 39/50] refcount: Split out refcount_types.h
  2023-12-16 · Kent Overstreet <kent.overstreet@linux.dev>
• STALE1667d [PATCH v3 16/25] locking/atomics, kcsan: Add instrumentation for barriers
  2021-11-30 · Marco Elver <elver@google.com>
• STALE1674d [PATCH v2 16/23] locking/atomics, kcsan: Add instrumentation for barriers
  2021-11-18 · Marco Elver <elver@google.com>
• STALE1692d [PATCH -rcu/kcsan 16/23] locking/atomics, kcsan: Add instrumentation for barriers
  2021-10-05 · Marco Elver <elver@google.com>
• STALE1775d Re: [PATCH] mm/rmap: Convert from atomic_t to refcount_t on anon_vma->refcount
  2021-08-20 · Peter Zijlstra <peterz@infradead.org>
• STALE1775d Re: [PATCH] mm/rmap: Convert from atomic_t to refcount_t on anon_vma->refcount
  2021-08-19 · Peter Zijlstra <peterz@infradead.org>
• STALE2065d [RFC PATCH resend 2/6] refcount: Move refcount_t definition into linux/types.h
  2020-10-16 · Jann Horn <jannh@google.com>
• STALE2083d [RFC PATCH 2/6] refcount: Move refcount_t definition into linux/types.h
  2020-10-16 · Jann Horn <jannh@google.com>
• STALE2358d REVIEWED: 15 (15M) [PATCH v4 09/10] locking/atomics, kcsan: Add KCSAN instrumentation
  2019-11-14 · Marco Elver <elver@google.com>
• STALE2419d REVIEWED: 7 (7M) [PATCH v3 8/9] locking/atomics, kcsan: Add KCSAN instrumentation
  2019-11-04 · Marco Elver <elver@google.com>
• STALE2441d [PATCH v2 7/8] locking/atomics, kcsan: Add KCSAN instrumentation
  2019-10-17 · Marco Elver <elver@google.com>
• STALE2448d [PATCH 7/8] locking/atomics, kcsan: Add KCSAN instrumentation
  2019-10-16 · Marco Elver <elver@google.com>
• STALE2959d [PATCH 4/8] locking/refcount: implement refcount_dec_and_lock_irqsave()
  2018-05-09 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>