This is a note to let you know that I've just added the patch titled
Revert "workqueue: remove unused cancel_work()"
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
revert-workqueue-remove-unused-cancel_work.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9f0fbbc9754349435c6fec5448ca21df41ec4c33
Author: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
Date: Thu May 19 09:47:28 2022 -0400
Revert "workqueue: remove unused cancel_work()"
[ Upstream commit 73b4b53276a1d6290cd4f47dbbc885b6e6e59ac6 ]
This reverts commit 6417250d3f894e66a68ba1cd93676143f2376a6f.
amdpgu need this function in order to prematurly stop pending
reset works when another reset work already in progress.
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
Reviewed-by: Lai Jiangshan<jiangshanlai@xxxxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Stable-dep-of: 91d3d149978b ("r8169: prevent potential deadlock in rtl8169_close")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 1e96680f50230..5f2e531d0a80d 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -462,6 +462,7 @@ extern int schedule_on_each_cpu(work_func_t func);
int execute_in_process_context(work_func_t fn, struct execute_work *);
extern bool flush_work(struct work_struct *work);
+extern bool cancel_work(struct work_struct *work);
extern bool cancel_work_sync(struct work_struct *work);
extern bool flush_delayed_work(struct delayed_work *dwork);
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 962ee27ec7d70..d5f30b610217e 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3277,6 +3277,15 @@ 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);
+}
+EXPORT_SYMBOL(cancel_work);
+
/**
* cancel_delayed_work - cancel a delayed work
* @dwork: delayed_work to cancel
