--- zzzz-none-000/linux-3.10.107/kernel/kthread.c	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/kernel/kthread.c	2021-11-10 11:53:56.000000000 +0000
@@ -288,6 +288,46 @@
 }
 EXPORT_SYMBOL(kthread_create_on_node);
 
+/**
+ * kthread_create_with_prio - create and wake a kthread with defined prio.
+ * @threadfn: the function to run until signal_pending(current).
+ * @data: data ptr for @threadfn.
+ * @namefmt: printf-style name for the thread.
+ * @sched_policy: new policy.
+ * @sched_priority: new RT priority.
+ *
+ * Description: Convenient wrapper to create and wake a kthread with defined 
+ * prio.
+ *
+ * Returns the kthread or 0.
+ */
+struct task_struct *kthread_create_with_prio(int (*threadfn)(void *data),
+                                             void *data,
+                                             const char namefmt[],
+                                             int sched_policy,
+                                             int sched_priority)
+{
+   struct task_struct *p;
+   struct sched_param param;
+
+   p = kthread_create((void *)threadfn, data, namefmt);
+   if (IS_ERR(p)) {
+      printk(KERN_ERR "kthread_create_with_prio: unable to start kthread\n");
+      return 0;
+   }
+
+   param.sched_priority = sched_priority;
+   if (sched_setscheduler_nocheck(p, sched_policy, &param)) {
+      printk(KERN_ERR "kthread_create_with_prio: Could not set priority!\n");
+      return 0;
+   }
+
+   wake_up_process(p);
+
+   return p;
+}
+EXPORT_SYMBOL(kthread_create_with_prio);
+
 static void __kthread_bind(struct task_struct *p, unsigned int cpu, long state)
 {
 	/* Must have done schedule() in kthread() before we set_task_cpu */