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 stable (capped at 30), ordered by date desc.

• DORMANTno replies [tip: smp/urgent] cpu: hotplug: Preserve per instance callback errors
  2026-06-21 · tip-bot2 for Bradley Morgan <hidden>
• COLD15d [tip: smp/urgent] cpu: hotplug: Bound hotplug states sysfs output
  2026-06-21 · tip-bot2 for Bradley Morgan <hidden>
• COLD15d [PATCH 2/2] cpu: hotplug: bound hotplug states sysfs output
  2026-06-19 · Bradley Morgan <hidden>
• COLD15d [PATCH 1/2] cpu: hotplug: preserve per instance callback errors
  2026-06-19 · Bradley Morgan <hidden>
• COLD36d Re: Linux 6.1.175
  2026-06-01 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD34d [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>
• COLD45d Re: Linux 7.0.10
  2026-05-23 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.18.33
  2026-05-23 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD39d Re: Linux 6.12.91
  2026-05-23 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.6.141
  2026-05-23 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD40d [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>
• COLD41d [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>
• COLD40d [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>
• COLD46d [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>
• DORMANTno replies Re: Linux 6.17.13
  2025-12-18 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE201d Re: Linux 6.18.2
  2025-12-18 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE190d [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>
• STALE200d [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>
• DORMANTno replies Re: Linux 6.16.7
  2025-09-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE299d Re: Linux 6.12.47
  2025-09-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE299d Re: Linux 6.6.106
  2025-09-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.1.152
  2025-09-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 5.15.193
  2025-09-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 5.10.244
  2025-09-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE301d Re: Linux 6.16.6
  2025-09-09 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE300d [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>
• STALE316d [PATCH AUTOSEL 6.16] LoongArch: Add cpuhotplug hooks to fix high cpu usage of vCPU threads
  2025-08-25 · Sasha Levin <sashal@kernel.org>
• DORMANTno replies Re: Linux 5.10.240
  2025-07-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE344d REVIEWED: 1 (1M) [PATCH 2/5] x86/bugs: Add a Transient Scheduler Attacks mitigation
  2025-07-15 · Borislav Petkov <bp@kernel.org>
• STALE362d Re: Linux 6.15.6
  2025-07-10 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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.

• STALE200d [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>
• STALE190d [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>
• STALE201d Re: Linux 6.18.2
  2025-12-18 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.17.13
  2025-12-18 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.6.141
  2026-05-23 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD39d Re: Linux 6.12.91
  2026-05-23 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.18.33
  2026-05-23 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD45d Re: Linux 7.0.10
  2026-05-23 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD36d Re: Linux 6.1.175
  2026-06-01 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>