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authorThomas Gleixner <tglx@linutronix.de>2018-03-14 20:37:31 +0100
committerThomas Gleixner <tglx@linutronix.de>2018-03-14 20:37:31 +0100
commitb0d8bef8ed805ca92eb91e86acf3ce89cbebc8ce (patch)
tree8838391a76f0cf75ffcd31166996d03d19c580a6 /kernel/workqueue.c
parent82b691bedf05f258f1c86c96ee574b0d7795c0a1 (diff)
parentfc6eabbbf8ef99efed778dd5afabc83c21dba585 (diff)
Merge branch 'linus' into irq/core to pick up dependencies.
Diffstat (limited to 'kernel/workqueue.c')
-rw-r--r--kernel/workqueue.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 017044c26233..bb9a519cbf50 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4180,6 +4180,22 @@ 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