[src/trunk]: src/sys/arch/aarch64/aarch64 ref/mod bit should be set according...

[ryo <ryo%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/223c1b520bab
branches:  trunk
changeset: 464013:223c1b520bab
user:      ryo <ryo%NetBSD.org@localhost>
date:      Fri Sep 20 05:35:27 2019 +0000

description:
ref/mod bit should be set according to 'flags' argument, not 'prot'.  r1.44 was incomplete.

diffstat:

 sys/arch/aarch64/aarch64/pmap.c |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (36 lines):

diff -r 02d7a362bed9 -r 223c1b520bab sys/arch/aarch64/aarch64/pmap.c
--- a/sys/arch/aarch64/aarch64/pmap.c   Fri Sep 20 05:32:42 2019 +0000
+++ b/sys/arch/aarch64/aarch64/pmap.c   Fri Sep 20 05:35:27 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.c,v 1.45 2019/09/13 18:07:30 ryo Exp $    */
+/*     $NetBSD: pmap.c,v 1.46 2019/09/20 05:35:27 ryo Exp $    */
 
 /*
  * Copyright (c) 2017 Ryo Shimizu <ryo%nerv.org@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.45 2019/09/13 18:07:30 ryo Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.46 2019/09/20 05:35:27 ryo Exp $");
 
 #include "opt_arm_debug.h"
 #include "opt_ddb.h"
@@ -1724,6 +1724,8 @@
         */
        if (prot & (VM_PROT_WRITE|VM_PROT_EXECUTE))
                prot |= VM_PROT_READ;
+       if (flags & (VM_PROT_WRITE|VM_PROT_EXECUTE))
+               flags |= VM_PROT_READ;
 
        mdattr = VM_PROT_READ | VM_PROT_WRITE;
        if (need_update_pv) {
@@ -1750,7 +1752,7 @@
        if (pg != NULL) {
                /* update referenced/modified flags */
                VM_PAGE_TO_MD(pg)->mdpg_flags |=
-                   (prot & (VM_PROT_READ | VM_PROT_WRITE));
+                   (flags & (VM_PROT_READ | VM_PROT_WRITE));
                mdattr &= VM_PAGE_TO_MD(pg)->mdpg_flags;
        }