Simplify forking_enable selection

celery/worker/components.py

@@ -142,7 +142,7 @@ class Pool(bootsteps.StartStopStep):
     def create(self, w, semaphore=None, max_restarts=None):
         threaded = not w.use_eventloop
         procs = w.min_concurrency
-        forking_enable = not threaded or (w.no_execv or not w.force_execv)
+        forking_enable = w.no_execv if w.force_execv else True
         if not threaded:
             semaphore = w.semaphore = LaxBoundedSemaphore(procs)
             w._quick_acquire = w.semaphore.acquire