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[Qemu-devel] [PATCH 1/3] virtio: add missing vdev->broken check
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 1/3] virtio: add missing vdev->broken check |
Date: |
Wed, 16 Nov 2016 21:53:07 +0000 |
virtio_queue_notify_vq() checks vdev->broken before invoking the
handler, virtio_queue_notify_aio_vq() should too.
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
hw/virtio/virtio.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 55a00cd..a4759bd 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1239,6 +1239,10 @@ static void virtio_queue_notify_aio_vq(VirtQueue *vq)
if (vq->vring.desc && vq->handle_aio_output) {
VirtIODevice *vdev = vq->vdev;
+ if (unlikely(vq->vdev->broken)) {
+ return;
+ }
+
trace_virtio_queue_notify(vdev, vq - vdev->vq, vq);
vq->handle_aio_output(vdev, vq);
}
--
2.7.4
[Qemu-devel] [PATCH 3/3] virtio-scsi: suppress virtqueue kick during processing, Stefan Hajnoczi, 2016/11/16
Re: [Qemu-devel] [PATCH 0/3] virtio: disable notifications in blk and scsi, Michael S. Tsirkin, 2016/11/16