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

• COLD58d [PATCH 6.1 510/969] padata: Put CPU offline callback in ONLINE section to allow failure
  2026-05-30 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE63d [PATCH 6.6 113/508] padata: Put CPU offline callback in ONLINE section to allow failure
  2026-05-20 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE64d [PATCH 6.12 160/666] padata: Put CPU offline callback in ONLINE section to allow failure
  2026-05-20 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE63d [PATCH 6.18 233/957] padata: Put CPU offline callback in ONLINE section to allow failure
  2026-05-20 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE69d [PATCH 7.0 0307/1146] padata: Put CPU offline callback in ONLINE section to allow failure
  2026-05-20 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE213d [PATCH 6.18 598/614] cpu: Make atomic hotplug callbacks run with interrupts disabled on UP
  2025-12-16 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE223d [PATCH 6.17 495/507] cpu: Make atomic hotplug callbacks run with interrupts disabled on UP
  2025-12-16 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE324d [PATCH 6.16 009/183] LoongArch: Add cpuhotplug hooks to fix high cpu usage of vCPU threads
  2025-09-07 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE339d [PATCH AUTOSEL 6.16] LoongArch: Add cpuhotplug hooks to fix high cpu usage of vCPU threads
  2025-08-25 · Sasha Levin <sashal@kernel.org>
• STALE385d REVIEWED: 1 (1M) Re: [PATCH 5.15 000/160] 5.15.187-rc1 review
  2025-07-08 · Borislav Petkov <bp@alien8.de>
• STALE385d REVIEWED: 1 (1M) Re: [PATCH 5.15 000/160] 5.15.187-rc1 review
  2025-07-08 · Borislav Petkov <bp@alien8.de>
• STALE476d [PATCH 6.12 019/423] watchdog/hardlockup/perf: Fix perf_event memory leak
  2025-04-08 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE469d [PATCH 6.13 023/499] watchdog/hardlockup/perf: Fix perf_event memory leak
  2025-04-08 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE469d [PATCH 6.14 030/731] watchdog/hardlockup/perf: Fix perf_event memory leak
  2025-04-08 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE700d REVIEWED: 2 (0M) [PATCH 6.10 132/273] cpu/SMT: Enable SMT only if a core is online
  2024-08-27 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE697d REVIEWED: 2 (0M) [PATCH 6.6 136/341] cpu/SMT: Enable SMT only if a core is online
  2024-08-27 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE718d REVIEWED: 5 (5M) [PATCH 6.10 072/123] RISC-V: Enable the IPI before workqueue_online_cpu()
  2024-08-07 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE758d REVIEWED: 1 (1M) [PATCH 6.9 050/250] cgroup/cpuset: Make cpuset hotplug processing synchronous
  2024-06-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE780d LANDED [PATCH v4 2/4] cpu: Drop "extern" from function declarations in cpuhplock.h
  2024-06-10 · Tony Luck <tony.luck@intel.com>
• STALE780d LANDED [PATCH v4 1/4] cpu: Move CPU hotplug function declarations into their own header
  2024-06-10 · Tony Luck <tony.luck@intel.com>
• STALE781d REVIEWED: 8 (8M) [PATCH 6.6 048/744] cpu: Ignore "mitigations" kernel parameter if CPU_MITIGATIONS=n
  2024-06-06 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE777d REVIEWED: 8 (8M) [PATCH 6.8 055/493] cpu: Ignore "mitigations" kernel parameter if CPU_MITIGATIONS=n
  2024-05-27 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE848d [PATCH 6.6 031/396] sched: Simplify tg_set_cfs_bandwidth()
  2024-04-01 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE932d REVIEWED: 45 (43M) [PATCH 6.1 058/150] cpu/SMT: Make SMT control more robust against enumeration failures
  2024-01-08 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE932d REVIEWED: 2 (2M) [PATCH 6.1 057/150] cpu/SMT: Create topology_smt_thread_allowed()
  2024-01-08 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE961d REVIEWED: 1 (0M) [PATCH 5.15 002/141] hrtimers: Push pending hrtimers away from outgoing CPU earlier
  2023-12-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE960d REVIEWED: 1 (0M) [PATCH 6.1 002/194] hrtimers: Push pending hrtimers away from outgoing CPU earlier
  2023-12-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE960d REVIEWED: 1 (0M) [PATCH 5.4 01/67] hrtimers: Push pending hrtimers away from outgoing CPU earlier
  2023-12-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE939d REVIEWED: 1 (0M) [PATCH 5.10 01/97] hrtimers: Push pending hrtimers away from outgoing CPU earlier
  2023-12-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE959d REVIEWED: 1 (0M) [PATCH 6.6 003/244] hrtimers: Push pending hrtimers away from outgoing CPU earlier
  2023-12-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>