workqueue: Add system wide power_efficient workqueues

[karo-tx-linux.git] / kernel / workqueue.c

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 8068d97ce141c7138881d8b17fca8f0096de5703..16ca2d3dd29f2d70b3091cf4198f21f667e0c1e2 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -314,6 +314,10 @@ struct workqueue_struct *system_unbound_wq __read_mostly;
 EXPORT_SYMBOL_GPL(system_unbound_wq);
 struct workqueue_struct *system_freezable_wq __read_mostly;
 EXPORT_SYMBOL_GPL(system_freezable_wq);
+struct workqueue_struct *system_power_efficient_wq __read_mostly;
+EXPORT_SYMBOL_GPL(system_power_efficient_wq);
+struct workqueue_struct *system_freezable_power_efficient_wq __read_mostly;
+EXPORT_SYMBOL_GPL(system_freezable_power_efficient_wq);
 
 static int worker_thread(void *__worker);
 static void copy_workqueue_attrs(struct workqueue_attrs *to,
@@ -4987,8 +4991,15 @@ static int __init init_workqueues(void)
                                            WQ_UNBOUND_MAX_ACTIVE);
        system_freezable_wq = alloc_workqueue("events_freezable",
                                              WQ_FREEZABLE, 0);
+       system_power_efficient_wq = alloc_workqueue("events_power_efficient",
+                                             WQ_POWER_EFFICIENT, 0);
+       system_freezable_power_efficient_wq = alloc_workqueue("events_freezable_power_efficient",
+                                             WQ_FREEZABLE | WQ_POWER_EFFICIENT,
+                                             0);
        BUG_ON(!system_wq || !system_highpri_wq || !system_long_wq ||
-              !system_unbound_wq || !system_freezable_wq);
+              !system_unbound_wq || !system_freezable_wq ||
+              !system_power_efficient_wq ||
+              !system_freezable_power_efficient_wq);
        return 0;
 }
 early_initcall(init_workqueues);