[Qemu-devel] [PATCH] net: flush NetQueue before to send new packets

[Stefano Garzarella]

qemu_net_queue_send() and qemu_net_queue_send_iov() can flush
enqueued packets before delivering a new packet, in this way the original
packet ordering is preserved.

Signed-off-by: Stefano Garzarella <s.garzare...@evidence.eu.com>
---
 net/queue.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/queue.c b/net/queue.c
index 9c32abd..aa18e5e 100644
--- a/net/queue.c
+++ b/net/queue.c
@@ -196,14 +196,14 @@ ssize_t qemu_net_queue_send(NetQueue *queue,
         return 0;
     }
 
+    qemu_net_queue_flush(queue);
+
     ret = qemu_net_queue_deliver(queue, sender, flags, data, size);
     if (ret == 0) {
         qemu_net_queue_append(queue, sender, flags, data, size, sent_cb);
         return 0;
     }
 
-    qemu_net_queue_flush(queue);
-
     return ret;
 }
 
@@ -221,14 +221,14 @@ ssize_t qemu_net_queue_send_iov(NetQueue *queue,
         return 0;
     }
 
+    qemu_net_queue_flush(queue);
+
     ret = qemu_net_queue_deliver_iov(queue, sender, flags, iov, iovcnt);
     if (ret == 0) {
         qemu_net_queue_append_iov(queue, sender, flags, iov, iovcnt, sent_cb);
         return 0;
     }
 
-    qemu_net_queue_flush(queue);
-
     return ret;
 }
 
-- 
2.9.0