diff mbox

[PULL,5/7] net: invoke callback when purging queue

Message ID 1409845811-27943-6-git-send-email-stefanha@redhat.com
State New
Headers show

Commit Message

Stefan Hajnoczi Sept. 4, 2014, 3:50 p.m. UTC 
From: "Michael S. Tsirkin" <mst@redhat.com>

devices rely on packet callbacks eventually running,
but we violate this rule whenever we purge the queue.
To fix, invoke callbacks on all packets on purge.
Set length to 0, this way callers can detect that
this happened and re-queue if necessary.

Cc: qemu-stable@nongnu.org
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 net/queue.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox

Patch

diff --git a/net/queue.c b/net/queue.c
index 859d02a..f948318 100644
--- a/net/queue.c
+++ b/net/queue.c
@@ -233,6 +233,9 @@  void qemu_net_queue_purge(NetQueue *queue, NetClientState *from)
         if (packet->sender == from) {
             QTAILQ_REMOVE(&queue->packets, packet, entry);
             queue->nq_count--;
+            if (packet->sent_cb) {
+                packet->sent_cb(packet->sender, 0);
+            }
             g_free(packet);
         }
     }