From: Tejun Heo <tj@kernel.org>
Date: Tue, 8 Feb 2011 09:39:03 +0000 (+0100)
Subject: workqueue: add system_freezeable_wq
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4149efb22da66e326fc48baf80d628834509f7f0;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

workqueue: add system_freezeable_wq

Add system wide freezeable workqueue.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
---

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 1ac11586a2f5..de6a755befac 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -286,11 +286,15 @@ enum {
  * any specific CPU, not concurrency managed, and all queued works are
  * executed immediately as long as max_active limit is not reached and
  * resources are available.
+ *
+ * system_freezeable_wq is equivalent to system_wq except that it's
+ * freezeable.
  */
 extern struct workqueue_struct *system_wq;
 extern struct workqueue_struct *system_long_wq;
 extern struct workqueue_struct *system_nrt_wq;
 extern struct workqueue_struct *system_unbound_wq;
+extern struct workqueue_struct *system_freezeable_wq;
 
 extern struct workqueue_struct *
 __alloc_workqueue_key(const char *name, unsigned int flags, int max_active,
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 11869faa6819..28f8bd08f0e7 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -249,10 +249,12 @@ struct workqueue_struct *system_wq __read_mostly;
 struct workqueue_struct *system_long_wq __read_mostly;
 struct workqueue_struct *system_nrt_wq __read_mostly;
 struct workqueue_struct *system_unbound_wq __read_mostly;
+struct workqueue_struct *system_freezeable_wq __read_mostly;
 EXPORT_SYMBOL_GPL(system_wq);
 EXPORT_SYMBOL_GPL(system_long_wq);
 EXPORT_SYMBOL_GPL(system_nrt_wq);
 EXPORT_SYMBOL_GPL(system_unbound_wq);
+EXPORT_SYMBOL_GPL(system_freezeable_wq);
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/workqueue.h>
@@ -3764,8 +3766,10 @@ static int __init init_workqueues(void)
 	system_nrt_wq = alloc_workqueue("events_nrt", WQ_NON_REENTRANT, 0);
 	system_unbound_wq = alloc_workqueue("events_unbound", WQ_UNBOUND,
 					    WQ_UNBOUND_MAX_ACTIVE);
+	system_freezeable_wq = alloc_workqueue("events_freezeable",
+					       WQ_FREEZEABLE, 0);
 	BUG_ON(!system_wq || !system_long_wq || !system_nrt_wq ||
-	       !system_unbound_wq);
+	       !system_unbound_wq || !system_freezeable_wq);
 	return 0;
 }
 early_initcall(init_workqueues);