From 98e0f209525e68cace50d84e7619939437b751bb Mon Sep 17 00:00:00 2001
From: deraadt <deraadt@openbsd.org>
Date: Fri, 7 Oct 2022 05:01:44 +0000
Subject: [PATCH] new UVM_ET_IMMUTABLE flag marks a uvm entry as immutable.

---
 sys/uvm/uvm.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/uvm/uvm.h b/sys/uvm/uvm.h
index 672e415a623..1ed1e493d21 100644
--- a/sys/uvm/uvm.h
+++ b/sys/uvm/uvm.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm.h,v 1.70 2022/09/29 04:10:27 deraadt Exp $	*/
+/*	$OpenBSD: uvm.h,v 1.71 2022/10/07 05:01:44 deraadt Exp $	*/
 /*	$NetBSD: uvm.h,v 1.24 2000/11/27 08:40:02 chs Exp $	*/
 
 /*
@@ -92,6 +92,7 @@ struct uvm {
 #define UVM_ET_WC		0x0080	/* write combining */
 #define UVM_ET_CONCEAL		0x0100	/* omit from dumps */
 #define UVM_ET_SYSCALL		0x0200	/* syscall text segment */
+#define UVM_ET_IMMUTABLE	0x0400	/* entry may not be changed */
 #define UVM_ET_FREEMAPPED	0x8000	/* map entry is on free list (DEBUG) */
 
 #define UVM_ET_ISOBJ(E)		(((E)->etype & UVM_ET_OBJ) != 0)
-- 
2.20.1