[src/trunk]: src/sys/uvm uvmpd_scan_inactive: when reactivating a page,

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

details:   https://anonhg.NetBSD.org/src/rev/976076678df2
branches:  trunk
changeset: 586935:976076678df2
user:      yamt <yamt%NetBSD.org@localhost>
date:      Thu Jan 05 10:47:33 2006 +0000

description:
uvmpd_scan_inactive: when reactivating a page,
use pmap_is_referenced rather than pmap_clear_reference.
we don't need to clear the bit here as we'll do so when
moving pages back to inactive queue again.  pointed by Chuck Silvers.

diffstat:

 sys/uvm/uvm_pdaemon.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 0945acb5c3d8 -r 976076678df2 sys/uvm/uvm_pdaemon.c
--- a/sys/uvm/uvm_pdaemon.c     Thu Jan 05 10:46:57 2006 +0000
+++ b/sys/uvm/uvm_pdaemon.c     Thu Jan 05 10:47:33 2006 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_pdaemon.c,v 1.71 2005/12/21 12:24:47 yamt Exp $    */
+/*     $NetBSD: uvm_pdaemon.c,v 1.72 2006/01/05 10:47:33 yamt Exp $    */
 
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -71,7 +71,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_pdaemon.c,v 1.71 2005/12/21 12:24:47 yamt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_pdaemon.c,v 1.72 2006/01/05 10:47:33 yamt Exp $");
 
 #include "opt_uvmhist.h"
 #include "opt_readahead.h"
@@ -475,7 +475,7 @@
                         * skip to next page.
                         */
 
-                       if (pmap_clear_reference(p)) {
+                       if (pmap_is_referenced(p)) {
                                uvm_pageactivate(p);
                                uvmexp.pdreact++;
                                continue;