[PATCH net-next 6/8] tun: implement byte queue limits
From: Stephen Hemminger <hidden>
Date: 2012-10-30 01:06:14
Add byte queue limits for tun device transmit. Signed-off-by: Stephen Hemminger <redacted>
--- a/drivers/net/tun.c 2012-10-26 14:29:51.172647696 -0700
+++ b/drivers/net/tun.c 2012-10-26 14:31:46.663487824 -0700@@ -421,6 +421,9 @@ static netdev_tx_t tun_net_xmit(struct s goto drop; skb_orphan(skb); + /* Update byte queue limits */ + netdev_sent_queue(dev, skb->len); + /* Enqueue packet */ skb_queue_tail(&tun->socket.sk->sk_receive_queue, skb);
@@ -991,6 +994,8 @@ static ssize_t tun_do_read(struct tun_st netif_wake_queue(tun->dev); ret = tun_put_user(tun, skb, iv, len); + + netdev_completed_queue(tun->dev, 1, skb->len); kfree_skb(skb); break; }