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

Recent patches

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

• COLD27d [PATCH v7 06/16] arm64: ras: Enable error reporting
  2026-06-02 · Ruidong Tian <hidden>
• WARM3d REVIEWED: 41 (41M) [PATCH v5 9/9] driver core: Replace dev->offline + ->offline_disabled with accessors
  2026-04-06 · Douglas Anderson <dianders@chromium.org>
• STALE83d REVIEWED: 8 (8M) [PATCH v4 9/9] driver core: Replace dev->offline + ->offline_disabled with accessors
  2026-04-04 · Douglas Anderson <dianders@chromium.org>
• STALE86d [PATCH v3 9/9] driver core: Replace dev->offline + ->offline_disabled with DEV_FLAGs
  2026-04-03 · Douglas Anderson <dianders@chromium.org>
• STALE104d [PATCH v6 09/16] ras: AEST: Add cpuhp callback
  2026-01-22 · Ruidong Tian <hidden>
• STALE171d [PATCH v5 09/17] ras: AEST: Add cpuhp callback
  2025-12-30 · Ruidong Tian <hidden>
• STALE186d [PATCH v4 09/17] ras: AEST: Add cpuhp callback
  2025-12-22 · Ruidong Tian <hidden>
• STALE177d [PATCH 4/4] PM: sleep: clear pm_abort_suspend at suspend
  2025-11-07 · Muhammad Usama Anjum <hidden>
• STALE249d [RFC 4/4] PM: sleep: clear pm_abort_suspend at suspend
  2025-10-18 · Muhammad Usama Anjum <hidden>
• STALE494d [PATCH v3 1/5] ACPI/RAS/AEST: Initial AEST driver
  2025-01-15 · Ruidong Tian <hidden>
• STALE608d LANDED: 3 (0M) [PATCHv12 04/19] cpu/hotplug, x86/acpi: Disable CPU offlining for ACPI MADT wakeup
  2024-06-14 · Kirill A. Shutemov <hidden>
• STALE608d LANDED: 2 (0M) [PATCHv12 03/19] cpu/hotplug: Add support for declaring CPU offlining not supported
  2024-06-14 · Kirill A. Shutemov <hidden>
• STALE719d LANDED: 5 (0M) [PATCH v10 19/19] cpumask: Add enabled cpumask for present CPUs that can be brought online
  2024-05-29 · Jonathan Cameron <Jonathan.Cameron@huawei.com>
• STALE738d REVIEWED: 2 (0M) [PATCHv11 04/19] cpu/hotplug, x86/acpi: Disable CPU offlining for ACPI MADT wakeup
  2024-05-28 · Kirill A. Shutemov <hidden>
• STALE738d REVIEWED: 2 (0M) [PATCHv11 03/19] cpu/hotplug: Add support for declaring CPU offlining not supported
  2024-05-28 · Kirill A. Shutemov <hidden>
• STALE782d REVIEWED: 4 (0M) [PATCH v9 19/19] cpumask: Add enabled cpumask for present CPUs that can be brought online
  2024-04-30 · Jonathan Cameron <Jonathan.Cameron@huawei.com>
• STALE789d REVIEWED: 4 (0M) [PATCH v8 16/16] cpumask: Add enabled cpumask for present CPUs that can be brought online
  2024-04-26 · Jonathan Cameron <Jonathan.Cameron@huawei.com>
• STALE794d Re: [PATCH v7 11/16] irqchip/gic-v3: Add support for ACPI's disabled but 'online capable' CPUs
  2024-04-25 · Jonathan Cameron <Jonathan.Cameron@huawei.com>
• STALE794d REVIEWED: 4 (0M) [PATCH v7 16/16] cpumask: Add enabled cpumask for present CPUs that can be brought online
  2024-04-18 · Jonathan Cameron <Jonathan.Cameron@huawei.com>
• STALE802d REVIEWED: 4 (0M) [PATCH v6 16/16] cpumask: Add enabled cpumask for present CPUs that can be brought online
  2024-04-17 · Jonathan Cameron <Jonathan.Cameron@huawei.com>
• STALE798d REVIEWED: 4 (0M) [PATCH v5 18/18] cpumask: Add enabled cpumask for present CPUs that can be brought online
  2024-04-12 · Jonathan Cameron <Jonathan.Cameron@huawei.com>
• STALE809d Re: [PATCH RFC v4 12/15] arm64: psci: Ignore DENIED CPUs
  2024-04-11 · Jonathan Cameron <Jonathan.Cameron@huawei.com>
• STALE780d [PATCH v2 1/2] ACPI/AEST: Initial AEST driver
  2024-03-21 · Ruidong Tian <hidden>
• STALE843d [PATCH 1/2] ACPI/AEST: Initial AEST driver
  2024-03-04 · Ruidong Tian <hidden>
• STALE809d REVIEWED: 4 (0M) [PATCH RFC v4 15/15] cpumask: Add enabled cpumask for present CPUs that can be brought online
  2024-01-31 · Russell King (Oracle) <hidden>
• STALE882d REVIEWED: 3 (0M) [PATCH RFC v3 21/21] cpumask: Add enabled cpumask for present CPUs that can be brought online
  2023-12-13 · Russell King (Oracle) <hidden>
• STALE931d LANDED: 1 (0M) [PATCH 09/21] drivers: base: add arch_cpu_is_hotpluggable()
  2023-11-21 · Russell King (Oracle) <hidden>
• STALE931d LANDED: 2 (0M) [PATCH 07/21] drivers: base: Allow parts of GENERIC_CPU_DEVICES to be overridden
  2023-11-21 · Russell King (Oracle) <hidden>
• STALE942d [PATCH RFC 07/22] drivers: base: Allow parts of GENERIC_CPU_DEVICES to be overridden
  2023-11-07 · Russell King (Oracle) <hidden>
• STALE942d [PATCH RFC 09/22] drivers: base: add arch_cpu_is_hotpluggable()
  2023-11-07 · Russell King (Oracle) <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.

• STALE186d [PATCH v4 09/17] ras: AEST: Add cpuhp callback
  2025-12-22 · Ruidong Tian <hidden>
• STALE171d [PATCH v5 09/17] ras: AEST: Add cpuhp callback
  2025-12-30 · Ruidong Tian <hidden>
• STALE104d [PATCH v6 09/16] ras: AEST: Add cpuhp callback
  2026-01-22 · Ruidong Tian <hidden>