[merged mm-nonmm-stable] kthread_worker-check-all-delayed-works-when-destroy-kthread-worker.patch removed from -mm tree

[merged mm-nonmm-stable] kthread_worker-check-all-delayed-works-when-destroy-kthread-worker.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: kthread_worker: check all delayed works when destroy kthread worker
has been removed from the -mm tree.  Its filename was
     kthread_worker-check-all-delayed-works-when-destroy-kthread-worker.patch

This patch was dropped because it was merged into the mm-nonmm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Zqiang <qiang1.zhang@intel.com>
Subject: kthread_worker: check all delayed works when destroy kthread worker
Date: Wed, 4 Jan 2023 22:42:30 +0800

When destroying a kthread worker warn if there are still some pending
delayed works.  This indicates that the caller should clear all pending
delayed works before destroying the kthread worker.

Link: https://lkml.kernel.org/r/20230104144230.938521-1-qiang1.zhang@intel.com
Signed-off-by: Zqiang <qiang1.zhang@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---


--- a/kernel/kthread.c~kthread_worker-check-all-delayed-works-when-destroy-kthread-worker
+++ a/kernel/kthread.c
@@ -1382,6 +1382,10 @@ EXPORT_SYMBOL_GPL(kthread_flush_worker);
  * Flush and destroy @worker.  The simple flush is enough because the kthread
  * worker API is used only in trivial scenarios.  There are no multi-step state
  * machines needed.
+ *
+ * Note that this function is not responsible for handling delayed work, so
+ * caller should be responsible for queuing or canceling all delayed work items
+ * before invoke this function.
  */
 void kthread_destroy_worker(struct kthread_worker *worker)
 {
@@ -1393,6 +1397,7 @@ void kthread_destroy_worker(struct kthre
 
 	kthread_flush_worker(worker);
 	kthread_stop(task);
+	WARN_ON(!list_empty(&worker->delayed_work_list));
 	WARN_ON(!list_empty(&worker->work_list));
 	kfree(worker);
 }
_

Patches currently in -mm which might be from qiang1.zhang@intel.com are