truct napi_struct *napi, bool busy_poll)
 		if (!repoll)
 			break;
 	}
+
+	if (busy_poll_last_qs)
+		*busy_poll_last_qs = last_qs;
 }
 
 static int napi_threaded_poll(void *data)
 {
 	struct napi_struct *napi = data;
+	unsigned long last_qs = jiffies;
 	bool want_busy_poll;
 	bool in_busy_poll;
 	unsigned long val;
@@ -7862,7 +7867,7 @@ static int napi_threaded_poll(void *data)
 			assign_bit(NAPI_STATE_IN_BUSY_POLL, &napi->state,
 				   want_busy_poll);
 
-		napi_threaded_poll_loop(napi, want_busy_poll);
+		napi_threaded_poll_loop(napi, want_busy_poll ? &last_qs : NULL);
 	}
 
 	return 0;
@@ -13175,7 +13180,7 @@ static void run_backlog_napi(unsigned int cpu)
 {
 	struct softnet_data *sd = per_cpu_ptr(&softnet_data, cpu);
 
-	napi_threaded_poll_loop(&sd->backlog, false);
+	napi_threaded_poll_loop(&sd->backlog, NULL);
 }
 
 static void backlog_napi_setup(unsigned int cpu)
-- 
2.53.0.473.g4a7958ca14-goog[PATCH net] net: Fix rcu_tasks stall in threaded busypollYiFei Zhu <zhuyifei@google.com> undefinedJakub Kicinski <kuba@kernel.org>, "David S . Miller " <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Paolo Abeni <pabeni@redhat.com>, Samiullah Khawaja <skhawaja@google.com>, netdev@vger.kernel.org undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined‹_†¤#