Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[mirror_ubuntu-zesty-kernel.git] / kernel / workqueue.c

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index c9dd5fbdbf333a785218ed1fe61bcdb732a2189e..ef071ca73fc325e69adb599e7637358c49cd215b 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4369,8 +4369,8 @@ static void show_pwq(struct pool_workqueue *pwq)
 /**
  * show_workqueue_state - dump workqueue state
  *
- * Called from a sysrq handler and prints out all busy workqueues and
- * pools.
+ * Called from a sysrq handler or try_to_freeze_tasks() and prints out
+ * all busy workqueues and pools.
  */
 void show_workqueue_state(void)
 {
@@ -4600,15 +4600,11 @@ static void restore_unbound_workers_cpumask(struct worker_pool *pool, int cpu)
        if (!cpumask_test_cpu(cpu, pool->attrs->cpumask))
                return;
 
-       /* is @cpu the only online CPU? */
        cpumask_and(&cpumask, pool->attrs->cpumask, cpu_online_mask);
-       if (cpumask_weight(&cpumask) != 1)
-               return;
 
        /* as we're called from CPU_ONLINE, the following shouldn't fail */
        for_each_pool_worker(worker, pool)
-               WARN_ON_ONCE(set_cpus_allowed_ptr(worker->task,
-                                                 pool->attrs->cpumask) < 0);
+               WARN_ON_ONCE(set_cpus_allowed_ptr(worker->task, &cpumask) < 0);
 }
 
 int workqueue_prepare_cpu(unsigned int cpu)