On Tue, Jun 23 2026 at 12:36, Jing Wu wrote: > On Thu, Jun 18 2026 at 22:27, Thomas Gleixner wrote: > That said, I fully accept the architectural feedback: the on-the-fly > subsystem modification approach in v3 is wrong, and v4 should use the > CPU hotplug machinery. > > We are open to coordinating with Waiman on a unified approach that > covers both use cases. Before starting v4, two questions: > > 1. Is the "no boot parameter required" use case worth pursuing > independently, or should it be folded into Waiman's series?
Sort it out with him. > 2. For the hotplug path: is CPU-by-CPU offline/online the expected > mechanism, given that you rejected the cpuhp_offline_cb() bulk > approach in Waiman's v1? I think so. It makes the most sense.
