On Thu, Jun 18 2026 at 11:11, Jing Wu wrote: > Add CPUHP_AP_NO_HZ_FULL_DYING and CPUHP_AP_IRQ_AFFINITY_DYING to the > cpuhp_state enum. These dying callbacks are invoked during CPU offline > before the tick is stopped, enabling clean tick handover and managed > IRQ migration when a CPU transitions between isolated and housekeeping > states. > > The existing CPUHP_AP_IRQ_AFFINITY_ONLINE already handles managed IRQ > restoration on CPU online. The new dying callback completes the pair, > migrating managed interrupts away from the CPU before it goes down.
What? They are migrated away today already when the CPU goes down unless the CPU is the last one in the affinity set of the interrupt. So why do you need a new step for something which already exists? > Subsequent patches register handlers for these states. > > Signed-off-by: Jing Wu <[email protected]> > Signed-off-by: Qiliang Yuan <[email protected]> This SOB chain is broken (in all patches). See Documentation/process/... Thanks, tglx
