Module Name: src
Committed By: thorpej
Date: Fri Dec 22 19:14:57 UTC 2023
Modified Files:
src/sys/arch/vax/vax: pmap.c
Log Message:
pmap_is_modified(): If we fall into the slow path and encounter a modified
page during PV list walk, set PG_M in the pvh_attrs to avoid falling into
the slow path again.
To generate a diff of this commit:
cvs rdiff -u -r1.200 -r1.201 src/sys/arch/vax/vax/pmap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/vax/vax/pmap.c
diff -u src/sys/arch/vax/vax/pmap.c:1.200 src/sys/arch/vax/vax/pmap.c:1.201
--- src/sys/arch/vax/vax/pmap.c:1.200 Fri Dec 22 17:55:49 2023
+++ src/sys/arch/vax/vax/pmap.c Fri Dec 22 19:14:57 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.200 2023/12/22 17:55:49 thorpej Exp $ */
+/* $NetBSD: pmap.c,v 1.201 2023/12/22 19:14:57 thorpej Exp $ */
/*
* Copyright (c) 1994, 1998, 1999, 2003 Ludd, University of Lule}, Sweden.
* All rights reserved.
@@ -25,7 +25,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.200 2023/12/22 17:55:49 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.201 2023/12/22 19:14:57 thorpej Exp $");
#include "opt_cputype.h"
#include "opt_ddb.h"
@@ -1474,6 +1474,7 @@ pmap_is_modified(struct vm_page *pg)
if (pte[0].pg_m | pte[1].pg_m | pte[2].pg_m | pte[3].pg_m
| pte[4].pg_m | pte[5].pg_m | pte[6].pg_m | pte[7].pg_m) {
rv = true;
+ SET(pv->pv_attr, PG_M);
break;
}
} while ((pv = pv->pv_next) != NULL);
