[src/uebayasi-xip]: src/sys/uvm Make vm_physseg lookup work when VM_PHYSSEG_M...

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

details:   https://anonhg.NetBSD.org/src/rev/4c257442b243
branches:  uebayasi-xip
changeset: 751791:4c257442b243
user:      uebayasi <uebayasi%NetBSD.org@localhost>
date:      Fri Aug 27 09:40:52 2010 +0000

description:
Make vm_physseg lookup work when VM_PHYSSEG_MAX == 1.

diffstat:

 sys/uvm/uvm_page.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (27 lines):

diff -r 3bb7e8504486 -r 4c257442b243 sys/uvm/uvm_page.c
--- a/sys/uvm/uvm_page.c        Thu Aug 26 09:43:45 2010 +0000
+++ b/sys/uvm/uvm_page.c        Fri Aug 27 09:40:52 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_page.c,v 1.153.2.54 2010/08/25 14:23:16 uebayasi Exp $     */
+/*     $NetBSD: uvm_page.c,v 1.153.2.55 2010/08/27 09:40:52 uebayasi Exp $     */
 
 /*
  * Copyright (c) 2010 The NetBSD Foundation, Inc.
@@ -97,7 +97,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_page.c,v 1.153.2.54 2010/08/25 14:23:16 uebayasi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_page.c,v 1.153.2.55 2010/08/27 09:40:52 uebayasi Exp $");
 
 #include "opt_ddb.h"
 #include "opt_uvmhist.h"
@@ -1074,6 +1074,8 @@
 {
 
        /* 'contig' case */
+       if (nsegs == 0)
+               return(-1);
        if (vm_physseg_within_p(segs[0], op, pframe, pg, offp)) {
                return(0);
        }