Re: [PATCH] workqueue: keep unbound rescuer's cpumask to be default cpumask

2021-01-19 Thread Tejun Heo
On Sat, Jan 16, 2021 at 02:57:53PM +0800, Lai Jiangshan wrote: > From: Lai Jiangshan > > When we attach a rescuer to a pool, we will set the rescuer's cpumask > to the pool's cpumask. If there is hotplug ongoing, it may cause > the rescuer running on the dying CPU and cause bug or it may cause >

[PATCH] workqueue: keep unbound rescuer's cpumask to be default cpumask

2021-01-15 Thread Lai Jiangshan
From: Lai Jiangshan When we attach a rescuer to a pool, we will set the rescuer's cpumask to the pool's cpumask. If there is hotplug ongoing, it may cause the rescuer running on the dying CPU and cause bug or it may cause warning of setting online&!active cpumask. So we have to find a reliable