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-rw-r--r--kernel/workqueue.c26
1 files changed, 17 insertions, 9 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 017044c26233..6ec6ba65127b 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3018,14 +3018,6 @@ static bool __cancel_work(struct work_struct *work, bool is_dwork)
return ret;
}
-/*
- * See cancel_delayed_work()
- */
-bool cancel_work(struct work_struct *work)
-{
- return __cancel_work(work, false);
-}
-
/**
* cancel_delayed_work - cancel a delayed work
* @dwork: delayed_work to cancel
@@ -4180,6 +4172,22 @@ void workqueue_set_max_active(struct workqueue_struct *wq, int max_active)
EXPORT_SYMBOL_GPL(workqueue_set_max_active);
/**
+ * current_work - retrieve %current task's work struct
+ *
+ * Determine if %current task is a workqueue worker and what it's working on.
+ * Useful to find out the context that the %current task is running in.
+ *
+ * Return: work struct if %current task is a workqueue worker, %NULL otherwise.
+ */
+struct work_struct *current_work(void)
+{
+ struct worker *worker = current_wq_worker();
+
+ return worker ? worker->current_work : NULL;
+}
+EXPORT_SYMBOL(current_work);
+
+/**
* current_is_workqueue_rescuer - is %current workqueue rescuer?
*
* Determine whether %current is a workqueue rescuer. Can be used from
@@ -5321,7 +5329,7 @@ int workqueue_sysfs_register(struct workqueue_struct *wq)
ret = device_register(&wq_dev->dev);
if (ret) {
- kfree(wq_dev);
+ put_device(&wq_dev->dev);
wq->wq_dev = NULL;
return ret;
}