Index: share/man/man9/vnode.9
===================================================================
--- share/man/man9/vnode.9
+++ share/man/man9/vnode.9
@@ -26,7 +26,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd February 12, 2014
+.Dd November 12, 2020
 .Dt VNODE 9
 .Os
 .Sh NAME
@@ -156,6 +156,15 @@
 .Nm
 interlock, will cause a LOR (Lock Order Reversal) due to the
 intertwining of VM Objects and Vnodes.
+.Sh FILES
+.Bl -tag -width "sys/tools/vnode_if.awk" -compact
+.It Pa sys/tools/vnode_if.awk
+The script which dynamically generates implementations of functions like
+.Xr VOP_READ 9
+and
+.Xr VOP_WRITE 9
+during
+.Xr build 9 .
 .Sh SEE ALSO
 .Xr malloc 9 ,
 .Xr VFS 9 ,