cpu hotplug · Maintained

Maintainers

• M Thomas Gleixner <tglx@kernel.org>
• M Peter Zijlstra <peterz@infradead.org>

Paths

• F include/linux/cpu.h
• F include/linux/cpuhotplug.h
• F include/linux/cpuhplock.h
• F include/linux/smpboot.h
• F kernel/cpu.c
• F kernel/smpboot.*
• F rust/helpers/cpu.c
• F rust/kernel/cpu.rs

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH v19 00/40] DEPT(DEPendency Tracker)
  2026-07-06 06:20 · 1 reply in 7d · Byungchul Park <byungchul@sk.com>

Recent patches

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

• HOTtoday [PATCH v19 26/40] cpu/hotplug: use a weaker annotation in AP thread
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• COLD35d [PATCH v6 09/22] mm: swap: allocate a virtual swap slot for each swapped out page
  2026-05-05 · Nhat Pham <nphamcs@gmail.com>
• COLD55d [RFC PATCH v7 7/7] x86/mm/ibs: In-kernel driver for AMD IBS Memory Profiler
  2026-05-04 · Bharata B Rao <hidden>
• COOLING11d REVIEWED: 41 (41M) [PATCH v5 9/9] driver core: Replace dev->offline + ->offline_disabled with accessors
  2026-04-06 · Douglas Anderson <dianders@chromium.org>
• STALE91d REVIEWED: 8 (8M) [PATCH v4 9/9] driver core: Replace dev->offline + ->offline_disabled with accessors
  2026-04-04 · Douglas Anderson <dianders@chromium.org>
• STALE95d [PATCH v3 9/9] driver core: Replace dev->offline + ->offline_disabled with DEV_FLAGs
  2026-04-03 · Douglas Anderson <dianders@chromium.org>
• STALE67d [PATCH v5 09/21] mm: swap: allocate a virtual swap slot for each swapped out page
  2026-03-20 · Nhat Pham <nphamcs@gmail.com>
• STALE109d [PATCH v4 09/21] mm: swap: allocate a virtual swap slot for each swapped out page
  2026-03-18 · Nhat Pham <nphamcs@gmail.com>
• COLD47d [PATCH v2 04/25] cpu: Annotate static information into meminspect
  2026-03-10 · Mukesh Ojha <hidden>
• STALE132d [PATCH v3 09/20] mm: swap: allocate a virtual swap slot for each swapped out page
  2026-02-08 · Nhat Pham <nphamcs@gmail.com>
• STALE159d [PATCH 11/33] cpu: Provide lockdep check for CPU hotplug lock write-held
  2026-01-25 · Frederic Weisbecker <frederic@kernel.org>
• STALE159d [PATCH 02/33] cpu: Revert "cpu/hotplug: Prevent self deadlock on CPU hot-unplug"
  2026-01-25 · Frederic Weisbecker <frederic@kernel.org>
• STALE134d REVIEWED: 2 (2M) [PATCH 29/33] sched/arm64: Move fallback task cpumask to HK_TYPE_DOMAIN
  2026-01-01 · Frederic Weisbecker <frederic@kernel.org>
• STALE134d [PATCH 11/33] cpu: Provide lockdep check for CPU hotplug lock write-held
  2026-01-01 · Frederic Weisbecker <frederic@kernel.org>
• STALE134d [PATCH 02/33] cpu: Revert "cpu/hotplug: Prevent self deadlock on CPU hot-unplug"
  2026-01-01 · Frederic Weisbecker <frederic@kernel.org>
• STALE188d [PATCH 29/33] sched/arm64: Move fallback task cpumask to HK_TYPE_DOMAIN
  2025-12-24 · Frederic Weisbecker <frederic@kernel.org>
• STALE188d [PATCH 11/33] cpu: Provide lockdep check for CPU hotplug lock write-held
  2025-12-24 · Frederic Weisbecker <frederic@kernel.org>
• STALE188d [PATCH 02/33] cpu: Revert "cpu/hotplug: Prevent self deadlock on CPU hot-unplug"
  2025-12-24 · Frederic Weisbecker <frederic@kernel.org>
• STALE159d REVIEWED: 11 (8M) [PATCH v26 13/28] prctl: arch-agnostic prctl for indirect branch tracking
  2025-12-11 · Deepak Gupta via B4 Relay <devnull+debug.rivosinc.com@kernel.org>
• STALE208d REVIEWED: 11 (8M) [PATCH v25 13/28] prctl: arch-agnostic prctl for indirect branch tracking
  2025-12-05 · Deepak Gupta via B4 Relay <devnull+debug.rivosinc.com@kernel.org>
• STALE213d REVIEWED: 11 (8M) [PATCH v25 13/28] prctl: arch-agnostic prctl for indirect branch tracking
  2025-12-05 · Deepak Gupta <hidden>
• WARM1d [PATCH v18 26/42] cpu/hotplug: use a weaker annotation in AP thread
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• STALE213d REVIEWED: 11 (8M) [PATCH v24 13/28] prctl: arch-agnostic prctl for indirect branch tracking
  2025-12-04 · Deepak Gupta <hidden>
• STALE166d [PATCH 04/26] cpu: Annotate static information into meminspect
  2025-11-19 · Eugen Hristev <hidden>
• COOLING6d REVIEWED: 9 (8M) [PATCH v23 13/28] prctl: arch-agnostic prctl for indirect branch tracking
  2025-11-13 · Deepak Gupta via B4 Relay <devnull+debug.rivosinc.com@kernel.org>
• STALE196d [PATCH 27/31] sched/arm64: Move fallback task cpumask to HK_TYPE_DOMAIN
  2025-11-05 · Frederic Weisbecker <frederic@kernel.org>
• STALE196d [PATCH 10/31] cpu: Provide lockdep check for CPU hotplug lock write-held
  2025-11-05 · Frederic Weisbecker <frederic@kernel.org>
• STALE196d [PATCH 02/31] cpu: Revert "cpu/hotplug: Prevent self deadlock on CPU hot-unplug"
  2025-11-05 · Frederic Weisbecker <frederic@kernel.org>
• STALE237d REVIEWED: 9 (8M) [PATCH v22 13/28] prctl: arch-agnostic prctl for indirect branch tracking
  2025-10-23 · Deepak Gupta via B4 Relay <devnull+debug.rivosinc.com@kernel.org>
• STALE248d REVIEWED: 9 (8M) [PATCH v22 13/28] prctl: arch-agnostic prctl for indirect branch tracking
  2025-10-23 · Deepak Gupta <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.

• STALE188d [PATCH 02/33] cpu: Revert "cpu/hotplug: Prevent self deadlock on CPU hot-unplug"
  2025-12-24 · Frederic Weisbecker <frederic@kernel.org>
• STALE188d [PATCH 11/33] cpu: Provide lockdep check for CPU hotplug lock write-held
  2025-12-24 · Frederic Weisbecker <frederic@kernel.org>
• STALE134d [PATCH 02/33] cpu: Revert "cpu/hotplug: Prevent self deadlock on CPU hot-unplug"
  2026-01-01 · Frederic Weisbecker <frederic@kernel.org>
• STALE134d [PATCH 11/33] cpu: Provide lockdep check for CPU hotplug lock write-held
  2026-01-01 · Frederic Weisbecker <frederic@kernel.org>
• STALE159d [PATCH 02/33] cpu: Revert "cpu/hotplug: Prevent self deadlock on CPU hot-unplug"
  2026-01-25 · Frederic Weisbecker <frederic@kernel.org>
• STALE159d [PATCH 11/33] cpu: Provide lockdep check for CPU hotplug lock write-held
  2026-01-25 · Frederic Weisbecker <frederic@kernel.org>
• COLD47d [PATCH v2 04/25] cpu: Annotate static information into meminspect
  2026-03-10 · Mukesh Ojha <hidden>
• STALE67d [PATCH v5 09/21] mm: swap: allocate a virtual swap slot for each swapped out page
  2026-03-20 · Nhat Pham <nphamcs@gmail.com>
• COLD55d [RFC PATCH v7 7/7] x86/mm/ibs: In-kernel driver for AMD IBS Memory Profiler
  2026-05-04 · Bharata B Rao <hidden>
• COLD35d [PATCH v6 09/22] mm: swap: allocate a virtual swap slot for each swapped out page
  2026-05-05 · Nhat Pham <nphamcs@gmail.com>