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In pmap_changeprot_local(), drop the dirty bit along with the write bit.

This commit is contained in:
maxv 2020-02-21 18:34:37 +00:00
parent 302ce37157
commit e3ba625111
1 changed files with 3 additions and 3 deletions
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6
sys/arch/x86/x86/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.356 2020/02/21 18:31:55 maxv Exp $ */
/* $NetBSD: pmap.c,v 1.357 2020/02/21 18:34:37 maxv Exp $ */
/*
* Copyright (c) 2008, 2010, 2016, 2017, 2019, 2020 The NetBSD Foundation, Inc.
@ -130,7 +130,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.356 2020/02/21 18:31:55 maxv Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.357 2020/02/21 18:34:37 maxv Exp $");
#include "opt_user_ldt.h"
#include "opt_lockdebug.h"
@ -868,7 +868,7 @@ pmap_changeprot_local(vaddr_t va, vm_prot_t prot)
if ((prot & VM_PROT_WRITE) != 0)
npte |= PTE_W;
else
npte &= ~PTE_W;
npte &= ~(PTE_W|PTE_D);
if (opte != npte) {
pmap_pte_set(pte, npte);