Merge branch 'akpm' (patches from Andrew)

[linux-2.6-microblaze.git] / include / linux / vringh.h

diff --git a/include/linux/vringh.h b/include/linux/vringh.h
index 9c07786..84db7b8 100644 (file)
--- a/include/linux/vringh.h
+++ b/include/linux/vringh.h
@@ -199,6 +199,19 @@ static inline void vringh_kiov_cleanup(struct vringh_kiov *kiov)
        kiov->iov = NULL;
 }
 
+static inline size_t vringh_kiov_length(struct vringh_kiov *kiov)
+{
+       size_t len = 0;
+       int i;
+
+       for (i = kiov->i; i < kiov->used; i++)
+               len += kiov->iov[i].iov_len;
+
+       return len;
+}
+
+void vringh_kiov_advance(struct vringh_kiov *kiov, size_t len);
+
 int vringh_getdesc_kern(struct vringh *vrh,
                        struct vringh_kiov *riov,
                        struct vringh_kiov *wiov,