Revert "relay: fix splice problem"

This reverts commit c3270e577c18b3d0e984c3371493205a4807db9d.
diff --git a/fs/splice.c b/fs/splice.c
index cece15b..7815003 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1072,7 +1072,7 @@
 
 	ret = splice_direct_to_actor(in, &sd, direct_splice_actor);
 	if (ret > 0)
-		*ppos = sd.pos;
+		*ppos += ret;
 
 	return ret;
 }