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authorHeinz Graalfs <graalfs@linux.vnet.ibm.com>2013-10-29 00:08:50 +0100
committerRusty Russell <rusty@rustcorp.com.au>2013-10-29 01:58:11 +0100
commit46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37 (patch)
tree39b9bd752cb3cb43a5e11d4f0fc35f425f1d02e2 /tools/virtio/virtio_test.c
parentvirtio_config: remove virtio_config_val (diff)
downloadlinux-46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37.tar.xz
linux-46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37.zip
virtio_ring: change host notification API
Currently a host kick error is silently ignored and not reflected in the virtqueue of a particular virtio device. Changing the notify API for guest->host notification seems to be one prerequisite in order to be able to handle such errors in the context where the kick is triggered. This patch changes the notify API. The notify function must return a bool return value. It returns false if the host notification failed. Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'tools/virtio/virtio_test.c')
-rw-r--r--tools/virtio/virtio_test.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index da7a19558281..059cb723f6a7 100644
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -41,13 +41,14 @@ struct vdev_info {
struct vhost_memory *mem;
};
-void vq_notify(struct virtqueue *vq)
+bool vq_notify(struct virtqueue *vq)
{
struct vq_info *info = vq->priv;
unsigned long long v = 1;
int r;
r = write(info->kick, &v, sizeof v);
assert(r == sizeof v);
+ return true;
}
void vq_callback(struct virtqueue *vq)