[PATCH 2/6] virtio: add ability to iterate over vqs

For cleanup it's helpful to be able to simply scan all vqs and discard all data. Add an iterator to do that.

Signed-off-by: Michael S. Tsirkin mst@redhat.com --- include/linux/virtio.h | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 988c735..fa1b5da 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -157,6 +157,9 @@ int virtio_device_freeze(struct virtio_device *dev); int virtio_device_restore(struct virtio_device *dev); #endif

+#define virtio_device_for_each_vq(vdev, vq) \ + list_for_each_entry(vq, &vdev->vqs, list) + /** * virtio_driver - operations for a virtio I/O driver * @driver: underlying device driver (populate name and owner).