virtio-net: fix the race between channels setting and refill

[cascardo/linux.git] / drivers / net / virtio_net.c

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 655bb25..6ddd77e 100644 (file)
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -900,7 +900,6 @@ static int virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs)
        struct scatterlist sg;
        struct virtio_net_ctrl_mq s;
        struct net_device *dev = vi->dev;
-       int i;
 
        if (!vi->has_cvq || !virtio_has_feature(vi->vdev, VIRTIO_NET_F_MQ))
                return 0;
@@ -914,10 +913,8 @@ static int virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs)
                         queue_pairs);
                return -EINVAL;
        } else {
-               for (i = vi->curr_queue_pairs; i < queue_pairs; i++)
-                       if (!try_fill_recv(&vi->rq[i], GFP_KERNEL))
-                               schedule_delayed_work(&vi->refill, 0);
                vi->curr_queue_pairs = queue_pairs;
+               schedule_delayed_work(&vi->refill, 0);
        }
 
        return 0;