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authorEugenio Pérez <eperezma@redhat.com>2020-03-31 21:27:57 +0200
committerMichael S. Tsirkin <mst@redhat.com>2020-04-16 18:31:07 -0400
commit247643f85782fc1119ccbd712a5075535ebf9d43 (patch)
treee0b59de23582a4451cb70e559b9e4c025fb7784b /drivers/vhost/vhost.h
parent21818ed0c6f08228c7d0f99cb74a934b624665f7 (diff)
downloadlinux-247643f85782fc1119ccbd712a5075535ebf9d43.tar.bz2
vhost: Create accessors for virtqueues private_data
Signed-off-by: Eugenio Pérez <eperezma@redhat.com> Link: https://lore.kernel.org/r/20200331192804.6019-2-eperezma@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost/vhost.h')
-rw-r--r--drivers/vhost/vhost.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 181382185bbc..f8403bd46b85 100644
--- 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);