netdev - [PATCH 2/2] virtio_net: flush when in xmit_more mode and under descriptor pressure

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Message-Id: <20140828.014100.627859966122813076.davem@davemloft.net>
Date:	Thu, 28 Aug 2014 01:41:00 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	netdev@...r.kernel.org
Subject: [PATCH 2/2] virtio_net: flush when in xmit_more mode and under
 descriptor pressure


Mirror the changes made to ixgbe in commit 2367a17390138f68b3aa28f2f220b8d7ff8d91f4
("ixgbe: flush when in xmit_more mode and under descriptor pressure")

Signed-off-by: David S. Miller <davem@...emloft.net>
---
 drivers/net/virtio_net.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index f0c2824..9359a13 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -953,7 +953,7 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
 		}
 	}
 
-	if (!skb->xmit_more)
+	if (__netif_subqueue_stopped(dev, qnum) || !skb->xmit_more)
 		virtqueue_kick(sq->vq);
 
 	return NETDEV_TX_OK;
-- 
1.7.11.7

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