macvtap: Fix macvtap_get_queue to use rxhash first

It was reported that the macvtap device selects a
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 7c88d13..58dc117 100644 (file)
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -175,6 +175,14 @@ static struct macvtap_queue *macvtap_get_queue(struct net_device *dev,
        if (!numvtaps)
                goto out;
 
+       /* Check if we can use flow to select a queue */
+       rxq = skb_get_rxhash(skb);
+       if (rxq) {
+               tap = rcu_dereference(vlan->taps[rxq % numvtaps]);
+               if (tap)
+                       goto out;
+       }
+
        if (likely(skb_rx_queue_recorded(skb))) {
                rxq = skb_get_rx_queue(skb);
 
@@ -186,14 +194,6 @@ static struct macvtap_queue *macvtap_get_queue(struct net_device *dev,
                        goto out;
        }
 
-       /* Check if we can use flow to select a queue */
-       rxq = skb_get_rxhash(skb);
-       if (rxq) {
-               tap = rcu_dereference(vlan->taps[rxq % numvtaps]);
-               if (tap)
-                       goto out;
-       }
-
        /* Everything failed - find first available queue */
        for (rxq = 0; rxq < MAX_MACVTAP_QUEUES; rxq++) {
                tap = rcu_dereference(vlan->taps[rxq]);