vhost-net: restart tx poll on sk_sndbuf full

[safe/jmp/linux-2.6] / drivers / vhost / net.c

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 91a324c..ad37da2 100644 (file)
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -114,8 +114,12 @@ static void handle_tx(struct vhost_net *net)
                return;
 
        wmem = atomic_read(&sock->sk->sk_wmem_alloc);
-       if (wmem >= sock->sk->sk_sndbuf)
+       if (wmem >= sock->sk->sk_sndbuf) {
+               mutex_lock(&vq->mutex);
+               tx_poll_start(net, sock);
+               mutex_unlock(&vq->mutex);
                return;
+       }
 
        use_mm(net->dev.mm);
        mutex_lock(&vq->mutex);