From d0aab1cd6909d34e466e2ecb5ce4d4d31dd8a798 Mon Sep 17 00:00:00 2001
From: dt <dt@FreeBSD.org>
Date: Wed, 21 Apr 1999 10:51:04 +0000
Subject: pmap_ts_referenced(): set fault on {read|execute|write} bits on the
 page on, so we will know when the page is accessed again.

(Also, make it return an integer, not "boolean" TRUE/FALSE).
---
 sys/alpha/alpha/pmap.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

(limited to 'sys')

diff --git a/sys/alpha/alpha/pmap.c b/sys/alpha/alpha/pmap.c
index 4054cac..52d5454 100644
--- a/sys/alpha/alpha/pmap.c
+++ b/sys/alpha/alpha/pmap.c
@@ -43,7 +43,7 @@
  *	from:	@(#)pmap.c	7.7 (Berkeley)	5/12/91
  *	from:	i386 Id: pmap.c,v 1.193 1998/04/19 15:22:48 bde Exp
  *		with some ideas from NetBSD's alpha pmap
- *	$Id: pmap.c,v 1.16 1999/04/05 19:38:27 julian Exp $
+ *	$Id: pmap.c,v 1.17 1999/04/07 03:34:32 msmith Exp $
  */
 
 /*
@@ -2830,17 +2830,19 @@ int
 pmap_ts_referenced(vm_offset_t pa)
 {
 	pv_table_t *ppv;
-	int ret;
 
 	if (!pmap_is_managed(pa))
-		return FALSE;
+		return 0;
 
 	ppv = pa_to_pvh(pa);
 
-	ret = (ppv->pv_flags & PV_TABLE_REF) != 0;
-	ppv->pv_flags &= ~PV_TABLE_REF;
+	if (ppv->pv_flags & PV_TABLE_REF) {
+		pmap_changebit(pa, PG_FOR|PG_FOE|PG_FOW, TRUE);
+		ppv->pv_flags &= ~PV_TABLE_REF;
+		return 1;
+	}
 
-	return ret;
+	return 0;
 }
 
 /*
-- 
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