Re: [PATCH v2] vhost-test: Make vhost/test.c work

["Michael S. Tsirkin" <mst@redhat.com>]

On Wed, May 08, 2013 at 03:24:33PM +0800, Asias He wrote:
> Fix it by switching to use the new device specific fields per vq
> 
> Signed-off-by: Asias He <asias@redhat.com>
> ---
> 
> This is for 3.10.
> 
>  drivers/vhost/test.c | 35 ++++++++++++++++++++++++-----------
>  1 file changed, 24 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c
> index 1ee45bc..7b49d10 100644
> --- a/drivers/vhost/test.c
> +++ b/drivers/vhost/test.c
> @@ -29,16 +29,20 @@ enum {
>  	VHOST_TEST_VQ_MAX = 1,
>  };
>  
> +struct vhost_test_virtqueue {
> +	struct vhost_virtqueue vq;
> +};
> +

Well there are no test specific fields here,
so this structure is not needed. Here's what I queued:

--->

vhost-test: fix up test module after API change

Recent vhost API changes broke vhost test module.
Update it to the new APIs.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

---

diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c
index be65414..c2c3d91 100644
--- a/drivers/vhost/test.c
+++ b/drivers/vhost/test.c
@@ -38,7 +38,7 @@ struct vhost_test {
  * read-size critical section for our kind of RCU. */
 static void handle_vq(struct vhost_test *n)
 {
-	struct vhost_virtqueue *vq = &n->dev.vqs[VHOST_TEST_VQ];
+	struct vhost_virtqueue *vq = &n->vqs[VHOST_TEST_VQ];
 	unsigned out, in;
 	int head;
 	size_t len, total_len = 0;
@@ -102,6 +102,7 @@ static int vhost_test_open(struct inode *inode, struct file *f)
 {
 	struct vhost_test *n = kmalloc(sizeof *n, GFP_KERNEL);
 	struct vhost_dev *dev;
+	struct vhost_virtqueue *vqs[VHOST_TEST_VQ_MAX];
 	int r;
 
 	if (!n)
@@ -109,7 +110,8 @@ static int vhost_test_open(struct inode *inode, struct file *f)
 
 	dev = &n->dev;
 	n->vqs[VHOST_TEST_VQ].handle_kick = handle_vq_kick;
-	r = vhost_dev_init(dev, n->vqs, VHOST_TEST_VQ_MAX);
+	vqs[VHOST_TEST_VQ] = &n->vqs[VHOST_TEST_VQ];
+	r = vhost_dev_init(dev, vqs, VHOST_TEST_VQ_MAX);
 	if (r < 0) {
 		kfree(n);
 		return r;
@@ -140,7 +142,7 @@ static void vhost_test_stop(struct vhost_test *n, void **privatep)
 
 static void vhost_test_flush_vq(struct vhost_test *n, int index)
 {
-	vhost_poll_flush(&n->dev.vqs[index].poll);
+	vhost_poll_flush(&n->vqs[index].poll);
 }
 
 static void vhost_test_flush(struct vhost_test *n)
@@ -268,21 +270,21 @@ static long vhost_test_ioctl(struct file *f, unsigned int ioctl,
 			return -EFAULT;
 		return vhost_test_run(n, test);
 	case VHOST_GET_FEATURES:
-		features = VHOST_NET_FEATURES;
+		features = VHOST_FEATURES;
 		if (copy_to_user(featurep, &features, sizeof features))
 			return -EFAULT;
 		return 0;
 	case VHOST_SET_FEATURES:
 		if (copy_from_user(&features, featurep, sizeof features))
 			return -EFAULT;
-		if (features & ~VHOST_NET_FEATURES)
+		if (features & ~VHOST_FEATURES)
 			return -EOPNOTSUPP;
 		return vhost_test_set_features(n, features);
 	case VHOST_RESET_OWNER:
 		return vhost_test_reset_owner(n);
 	default:
 		mutex_lock(&n->dev.mutex);
-		r = vhost_dev_ioctl(&n->dev, ioctl, arg);
+		r = vhost_dev_ioctl(&n->dev, ioctl, argp);
 		vhost_test_flush(n);
 		mutex_unlock(&n->dev.mutex);
 		return r;