Don't rely on the scheduler to force break affinity for us -- it will stop doing that for per-cpu-kthreads.
Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Acked-by: Tejun Heo <[email protected]> --- kernel/workqueue.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -4905,6 +4905,10 @@ static void unbind_workers(int cpu) pool->flags |= POOL_DISASSOCIATED; raw_spin_unlock_irq(&pool->lock); + + for_each_pool_worker(worker, pool) + WARN_ON_ONCE(set_cpus_allowed_ptr(worker->task, cpu_active_mask) < 0); + mutex_unlock(&wq_pool_attach_mutex); /*
