From: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Signed-off-by: Eugenio Pérez <eperezma@xxxxxxxxxx>
---
drivers/vhost/test.c | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c
index 650e69261557..39e68f797a93 100644
--- a/drivers/vhost/test.c
+++ b/drivers/vhost/test.c
@@ -44,9 +44,10 @@ static void handle_vq(struct vhost_test *n)
{
struct vhost_virtqueue *vq = &n->vqs[VHOST_TEST_VQ];
unsigned out, in;
- int head;
+ int ret;
size_t len, total_len = 0;
void *private;
+ struct vhost_buf buf;
mutex_lock(&vq->mutex);
private = vhost_vq_get_backend(vq);
@@ -58,15 +59,15 @@ static void handle_vq(struct vhost_test *n)
vhost_disable_notify(&n->dev, vq);
for (;;) {
- head = vhost_get_vq_desc(vq, vq->iov,
- ARRAY_SIZE(vq->iov),
- &out, &in,
- NULL, NULL);
+ ret = vhost_get_avail_buf(vq, &buf, vq->iov,
+ ARRAY_SIZE(vq->iov),
+ &out, &in,
+ NULL, NULL);
/* On error, stop handling until the next kick. */
- if (unlikely(head < 0))
+ if (unlikely(ret < 0))
break;
/* Nothing new? Wait for eventfd to tell us they refilled. */
- if (head == vq->num) {
+ if (!ret) {
if (unlikely(vhost_enable_notify(&n->dev, vq))) {
vhost_disable_notify(&n->dev, vq);
continue;
@@ -78,13 +79,14 @@ static void handle_vq(struct vhost_test *n)
"out %d, int %d\n", out, in);
break;
}
- len = iov_length(vq->iov, out);
+ len = buf.out_len;
/* Sanity check */
if (!len) {
vq_err(vq, "Unexpected 0 len for TX\n");
break;
}
- vhost_add_used_and_signal(&n->dev, vq, head, 0);
+ vhost_put_used_buf(vq, &buf);
+ vhost_signal(&n->dev, vq);
total_len += len;
if (unlikely(vhost_exceeds_weight(vq, 0, total_len)))
break;
--
2.18.1
