RE: [PATCH v4] lib/group_cpus: Snapshot cluster masks to keep grouping hotplug invariant

Next message: alistair23: "[PATCH 0/2] scsi: Initial commit of VirtIO PCIe Endpoint Driver"
Previous message: Sanghyun Park: "[PATCH bpf-next v5 2/2] selftests/bpf: Cover attach type checks in link update"
In reply to: Andrew Morton: "Re: [PATCH v4] lib/group_cpus: Snapshot cluster masks to keep grouping hotplug invariant"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

From: Guo, Wangyang

Date: Mon Aug 31 2026 - 22:00:15 EST

> Signed-off-by: Vishal Badole <Vishal.Badole@xxxxxxx>
> ---
> Changes in v4:
> - Drop the index-based unwind; reuse the mask-based cleanup path.

Reproduced under QEMU via offline-cluster + reset_controller: I/O from the
online CPUs stalls (QID-timeout/completion-polled). This patch fixes it.

Reviewed-by: Wangyang Guo <wangyang.guo@xxxxxxxxx>
Tested-by: Wangyang Guo <wangyang.guo@xxxxxxxxx>