From: Stefan Hajnoczi <stefa...@redhat.com> virtqueue_discard() moves vq->last_avail_idx back so the element can be popped again. It's necessary to decrement vq->inuse to avoid "leaking" the element count.
Cc: qemu-sta...@nongnu.org Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com> Reviewed-by: Michael S. Tsirkin <m...@redhat.com> Reviewed-by: Cornelia Huck <cornelia.h...@de.ibm.com> Reviewed-by: Michael S. Tsirkin <m...@redhat.com> Signed-off-by: Michael S. Tsirkin <m...@redhat.com> (cherry picked from commit 58a83c61496eeb0d31571a07a51bc1947e3379ac) Signed-off-by: Michael Roth <mdr...@linux.vnet.ibm.com> --- hw/virtio/virtio.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 0333bb8..5fbaaaa 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -267,6 +267,7 @@ void virtqueue_discard(VirtQueue *vq, const VirtQueueElement *elem, unsigned int len) { vq->last_avail_idx--; + vq->inuse--; virtqueue_unmap_sg(vq, elem, len); } -- 1.9.1