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 18 patches in this subsystem on virtualization, ordered by date desc.

• COOLING9d [PATCH v13 04/13] cpumask: Introduce cpu_preferred_mask
  2026-09-09 · Shrikanth Hegde <sshegde@linux.ibm.com>
• COOLING10d [PATCH v12 04/13] cpumask: Introduce cpu_preferred_mask
  2026-09-03 · Shrikanth Hegde <sshegde@linux.ibm.com>
• COLD16d [PATCH v11 03/12] cpumask: Introduce cpu_preferred_mask
  2026-08-25 · Shrikanth Hegde <sshegde@linux.ibm.com>
• COLD22d [PATCH v10 03/12] cpumask: Introduce cpu_preferred_mask
  2026-08-12 · Shrikanth Hegde <sshegde@linux.ibm.com>
• COLD39d [PATCH v9 02/11] cpumask: Introduce cpu_preferred_mask
  2026-07-24 · Shrikanth Hegde <sshegde@linux.ibm.com>
• COLD58d [PATCH v8 02/11] cpumask: Introduce cpu_preferred_mask
  2026-07-20 · Shrikanth Hegde <sshegde@linux.ibm.com>
• STALE685d [PATCH RFC v1 2/2] genirq/cpuhotplug: Handle managed IRQs when the last CPU hotplug out in the affinity
  2024-10-31 · 'Guanjun' <hidden>
• STALE2433d [PATCH v3 8/8] KVM: arm64: Support the vCPU preemption check
  2020-01-16 · Zengruan Ye <hidden>
• STALE2089d [PATCH v2 6/6] KVM: arm64: Support the VCPU preemption check
  2019-12-26 · Zengruan Ye <hidden>
• STALE2458d [PATCH 5/5] KVM: arm64: Support the vcpu preemption check
  2019-12-17 · <hidden>
• STALE3172d Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)
  2017-11-21 · Jens Axboe <axboe@kernel.dk>
• STALE3172d Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)
  2017-11-21 · Jens Axboe <axboe@kernel.dk>
• STALE3490d [PATCH 9/9] virtio_scsi: use virtio IRQ affinity
  2017-02-05 · Christoph Hellwig <hch@lst.de>
• STALE3514d [PATCH 9/9] virtio_scsi: use virtio IRQ affinity
  2017-01-27 · Christoph Hellwig <hch@lst.de>
• STALE3649d [PATCH 10/21] virtio scsi: Convert to hotplug state machine
  2016-09-06 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE3668d [PATCH 6/6] net: virtio-net: Convert to hotplug state machine
  2016-08-12 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE5218d [PATCH 03/27] smpboot: Define and use cpu_state per-cpu variable in generic code
  2012-06-01 · Srivatsa S. Bhat <hidden>
• STALE6827d [PATCH] cpu hotplug driver: kernel module
  2008-01-09 · Glauber de Oliveira Costa <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.

• COLD58d [PATCH v8 02/11] cpumask: Introduce cpu_preferred_mask
  2026-07-20 · Shrikanth Hegde <sshegde@linux.ibm.com>
• COLD22d [PATCH v10 03/12] cpumask: Introduce cpu_preferred_mask
  2026-08-12 · Shrikanth Hegde <sshegde@linux.ibm.com>