[src/uebayasi-xip]: src/sys/uvm FIx an off-by-one in my new code.

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

details:   https://anonhg.NetBSD.org/src/rev/08ed0c36b698
branches:  uebayasi-xip
changeset: 751700:08ed0c36b698
user:      uebayasi <uebayasi%NetBSD.org@localhost>
date:      Thu Apr 29 02:35:14 2010 +0000

description:
FIx an off-by-one in my new code.

diffstat:

 sys/uvm/uvm_page.c |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (31 lines):

diff -r 70d368755e45 -r 08ed0c36b698 sys/uvm/uvm_page.c
--- a/sys/uvm/uvm_page.c        Wed Apr 28 21:15:48 2010 +0000
+++ b/sys/uvm/uvm_page.c        Thu Apr 29 02:35:14 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_page.c,v 1.153.2.29 2010/04/28 13:28:43 uebayasi Exp $     */
+/*     $NetBSD: uvm_page.c,v 1.153.2.30 2010/04/29 02:35:14 uebayasi Exp $     */
 
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -71,7 +71,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_page.c,v 1.153.2.29 2010/04/28 13:28:43 uebayasi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_page.c,v 1.153.2.30 2010/04/29 02:35:14 uebayasi Exp $");
 
 #include "opt_ddb.h"
 #include "opt_uvmhist.h"
@@ -961,10 +961,11 @@
        if (segp == segs + VM_PHYSSEG_MAX)
                panic("unknown segment: %p", seg);
        SIMPLEQ_INSERT_TAIL(freelist, seg, list);
-       while (segp < segs + VM_PHYSSEG_MAX) {
+       while (segp + 1 < segs + VM_PHYSSEG_MAX) {
                *segp = *(segp + 1);
                segp++;
        }
+       *(segp + VM_PHYSSEG_MAX - 1) = NULL;
 }
 
 /*