x86/cpu/amd: Make erratum #1054 a legacy erratum

[linux-2.6-microblaze.git] / drivers / vhost / vhost.h

diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 1813821..f8403bd 100644 (file)
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -231,6 +231,33 @@ enum {
                         (1ULL << VIRTIO_F_VERSION_1)
 };
 
+/**
+ * vhost_vq_set_backend - Set backend.
+ *
+ * @vq            Virtqueue.
+ * @private_data  The private data.
+ *
+ * Context: Need to call with vq->mutex acquired.
+ */
+static inline void vhost_vq_set_backend(struct vhost_virtqueue *vq,
+                                       void *private_data)
+{
+       vq->private_data = private_data;
+}
+
+/**
+ * vhost_vq_get_backend - Get backend.
+ *
+ * @vq            Virtqueue.
+ *
+ * Context: Need to call with vq->mutex acquired.
+ * Return: Private data previously set with vhost_vq_set_backend.
+ */
+static inline void *vhost_vq_get_backend(struct vhost_virtqueue *vq)
+{
+       return vq->private_data;
+}
+
 static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
 {
        return vq->acked_features & (1ULL << bit);