virtio_ring: change host notification API

[~andy/linux] / tools / virtio / vringh_test.c

diff --git a/tools/virtio/vringh_test.c b/tools/virtio/vringh_test.c
index d053ea40c001ff8ecfba849560d819c9886c212a..14a4f4cab5b97a1070abc656bca1bc72c60b5aa1 100644 (file)
--- a/tools/virtio/vringh_test.c
+++ b/tools/virtio/vringh_test.c
@@ -22,7 +22,7 @@ static u64 user_addr_offset;
 #define RINGSIZE 256
 #define ALIGN 4096
 
-static void never_notify_host(struct virtqueue *vq)
+static bool never_notify_host(struct virtqueue *vq)
 {
        abort();
 }
@@ -65,17 +65,22 @@ struct guest_virtio_device {
        unsigned long notifies;
 };
 
-static void parallel_notify_host(struct virtqueue *vq)
+static bool parallel_notify_host(struct virtqueue *vq)
 {
+       int rc;
        struct guest_virtio_device *gvdev;
 
        gvdev = container_of(vq->vdev, struct guest_virtio_device, vdev);
-       write(gvdev->to_host_fd, "", 1);
+       rc = write(gvdev->to_host_fd, "", 1);
+       if (rc < 0)
+               return false;
        gvdev->notifies++;
+       return true;
 }
 
-static void no_notify_host(struct virtqueue *vq)
+static bool no_notify_host(struct virtqueue *vq)
 {
+       return true;
 }
 
 #define NUM_XFERS (10000000)