Hello, On Mon, Mar 16, 2026 at 10:02:48AM +0000, Christian Loehle wrote: > @@ -5686,11 +5718,20 @@ static void kick_cpus_irq_workfn(struct irq_work > *irq_work) > * task is picked subsequently. The latter is necessary to break > * the wait when $cpu is taken by a higher sched class. > */ > - if (cpu != cpu_of(this_rq)) > + if (cpu != this_cpu) > smp_cond_load_acquire(wait_kick_sync, VAL != > ksyncs[cpu]);
Given that irq_work is executed at the end of IRQ handling, we can just reschedule the irq work when the condition is not met (or separate that out into its own irq_work). That way, I think we can avoid the global lock. Thanks. -- tejun
