Run all tasks from a proper context, with proper priority, etc.

Index: sys/kern/subr_taskqueue.c
===================================================================
--- sys/kern/subr_taskqueue.c	(wersja 211137)
+++ sys/kern/subr_taskqueue.c	(kopia robocza)
@@ -141,7 +141,6 @@
 
 	TQ_LOCK(queue);
 	queue->tq_flags &= ~TQ_FLAGS_ACTIVE;
-	taskqueue_run(queue, &queue->tq_running);
 	taskqueue_terminate(queue->tq_threads, queue);
 	mtx_destroy(&queue->tq_mutex);
 	free(queue->tq_threads, M_TASKQUEUE);
@@ -379,6 +378,7 @@
 			break;
 		TQ_SLEEP(tq, tq, &tq->tq_mutex, 0, "-", 0);
 	}
+	taskqueue_run(queue, &queue->tq_running);
 
 	/* rendezvous with thread that asked us to terminate */
 	tq->tq_tcount--;