return NULL;
}
+static void unbind_worker(struct worker *worker)
+{
+ lockdep_assert_held(&wq_pool_attach_mutex);
+
+ kthread_set_per_cpu(worker->task, -1);
+ if (cpumask_intersects(wq_unbound_cpumask, cpu_active_mask))
+ WARN_ON_ONCE(set_cpus_allowed_ptr(worker->task, wq_unbound_cpumask) < 0);
+ else
+ WARN_ON_ONCE(set_cpus_allowed_ptr(worker->task, cpu_possible_mask) < 0);
+}
+
+static void rebind_worker(struct worker *worker, struct worker_pool *pool)
+{
+ kthread_set_per_cpu(worker->task, pool->cpu);
+ WARN_ON_ONCE(set_cpus_allowed_ptr(worker->task, pool->attrs->cpumask) < 0);
+}
+
/**
* destroy_worker - destroy a workqueue worker
* @worker: worker to be destroyed
raw_spin_unlock_irq(&pool->lock);
- for_each_pool_worker(worker, pool) {
- kthread_set_per_cpu(worker->task, -1);
- if (cpumask_intersects(wq_unbound_cpumask, cpu_active_mask))
- WARN_ON_ONCE(set_cpus_allowed_ptr(worker->task, wq_unbound_cpumask) < 0);
- else
- WARN_ON_ONCE(set_cpus_allowed_ptr(worker->task, cpu_possible_mask) < 0);
- }
+ for_each_pool_worker(worker, pool)
+ unbind_worker(worker);
mutex_unlock(&wq_pool_attach_mutex);
}
* of all workers first and then clear UNBOUND. As we're called
* from CPU_ONLINE, the following shouldn't fail.
*/
- for_each_pool_worker(worker, pool) {
- kthread_set_per_cpu(worker->task, pool->cpu);
- WARN_ON_ONCE(set_cpus_allowed_ptr(worker->task,
- pool->attrs->cpumask) < 0);
- }
+ for_each_pool_worker(worker, pool)
+ rebind_worker(worker, pool);
raw_spin_lock_irq(&pool->lock);