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authorTakashi Iwai <tiwai@suse.de>2018-03-12 17:30:38 +0100
committerTakashi Iwai <tiwai@suse.de>2018-03-12 17:30:38 +0100
commitdb45dc9540ea4864bb9d22eed30d3e70ed5d56d4 (patch)
treec611d75097036ff464e9af31aa729e34c863ec93 /kernel/workqueue.c
parent40088dc4e1ead7df31728c73f5b51d71da18831d (diff)
parenta3e39ed1f40e14f24bec0f91c4fa0408fb6c4d02 (diff)
Merge tag 'asoc-fix-v4.16-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.16 This is a fairly standard collection of fixes, there's no changes to the core here just a bunch of small device specific changes for single drivers plus an update to the MAINTAINERS file for the sgl5000.
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