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net: invoke callback when purging queue

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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>
This commit is contained in:
Michael S. Tsirkin 2014-09-04 11:39:10 +03:00 committed by Stefan Hajnoczi
parent 269bd822e7
commit 07d8084624
1 changed files with 3 additions and 0 deletions
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3
net/queue.c
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@ -233,6 +233,9 @@ void qemu_net_queue_purge(NetQueue *queue, NetClientState *from)
if (packet->sender == from) { if (packet->sender == from) {
QTAILQ_REMOVE(&queue->packets, packet, entry); QTAILQ_REMOVE(&queue->packets, packet, entry);
queue->nq_count--; queue->nq_count--;
if (packet->sent_cb) {
packet->sent_cb(packet->sender, 0);
}
g_free(packet); g_free(packet);
} }
} }