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| author | Paolo Bonzini <pbonzini@redhat.com> | 2012-08-09 16:45:55 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@gmail.com> | 2012-09-14 08:40:31 +0100 |
| commit | 987a9b4800003567b1a47a379255e886a77d57ea (patch) | |
| tree | 030780937d777488169946c3d9cb5efdcc63c3fd /net | |
| parent | e0a1e32dbc41e6b2aabb436a9417dfd32177a3dc (diff) | |
| download | qemu-987a9b4800003567b1a47a379255e886a77d57ea.tar.gz qemu-987a9b4800003567b1a47a379255e886a77d57ea.tar.bz2 qemu-987a9b4800003567b1a47a379255e886a77d57ea.zip | |
net: notify iothread after flushing queue
virtio-net has code to flush the queue and notify the iothread
whenever new receive buffers are added by the guest. That is
fine, and indeed we need to do the same in all other drivers.
However, notifying the iothread should be work for the network
subsystem. And since we are at it we can add a little smartness:
if some of the queued packets already could not be delivered,
there is no need to notify the iothread.
Reported-by: Luigi Rizzo <rizzo@iet.unipi.it>
Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Cc: Jan Kiszka <jan.kiszka@siemens.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/queue.c | 5 | ||||
| -rw-r--r-- | net/queue.h | 2 |
2 files changed, 4 insertions, 3 deletions
diff --git a/net/queue.c b/net/queue.c index e8030aafe4..6e64091463 100644 --- a/net/queue.c +++ b/net/queue.c @@ -228,7 +228,7 @@ void qemu_net_queue_purge(NetQueue *queue, NetClientState *from) } } -void qemu_net_queue_flush(NetQueue *queue) +bool qemu_net_queue_flush(NetQueue *queue) { while (!QTAILQ_EMPTY(&queue->packets)) { NetPacket *packet; @@ -244,7 +244,7 @@ void qemu_net_queue_flush(NetQueue *queue) packet->size); if (ret == 0) { QTAILQ_INSERT_HEAD(&queue->packets, packet, entry); - break; + return false; } if (packet->sent_cb) { @@ -253,4 +253,5 @@ void qemu_net_queue_flush(NetQueue *queue) g_free(packet); } + return true; } diff --git a/net/queue.h b/net/queue.h index 9d44a9b3b8..fc02b33915 100644 --- a/net/queue.h +++ b/net/queue.h @@ -53,6 +53,6 @@ ssize_t qemu_net_queue_send_iov(NetQueue *queue, NetPacketSent *sent_cb); void qemu_net_queue_purge(NetQueue *queue, NetClientState *from); -void qemu_net_queue_flush(NetQueue *queue); +bool qemu_net_queue_flush(NetQueue *queue); #endif /* QEMU_NET_QUEUE_H */ |