Hello, Lai. On Tue, Apr 23, 2024 at 08:45:48PM +0800, Lai Jiangshan wrote: > diff --git a/kernel/workqueue.c b/kernel/workqueue.c > index 0066c8f6c154..b31cd7faeb9f 100644 > --- a/kernel/workqueue.c > +++ b/kernel/workqueue.c > @@ -1591,7 +1591,7 @@ static void wq_update_node_max_active(struct workqueue_struct *wq, int off_cpu) > off_cpu = -1; > > total_cpus = cpumask_weight_and(effective, cpu_online_mask); > - if (off_cpu >= 0) > + if (off_cpu >= 0 && total_cpus > 1) > total_cpus--; Can we do this explicitly instead? ie. test total_cpus before using it as divisor and use max_active explicitly if it's zero. Thanks. -- tejun
