[src/trunk]: src/sys/ufs/ufs ufs_balloc_range: correct range to clear PG_RDONLY.

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

details:   https://anonhg.NetBSD.org/src/rev/2378f36fe664
branches:  trunk
changeset: 584356:2378f36fe664
user:      yamt <yamt%NetBSD.org@localhost>
date:      Wed Sep 14 10:33:25 2005 +0000

description:
ufs_balloc_range: correct range to clear PG_RDONLY.
fix a panic in ubc_fault.

diffstat:

 sys/ufs/ufs/ufs_inode.c |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (41 lines):

diff -r 2272c9d40b5c -r 2378f36fe664 sys/ufs/ufs/ufs_inode.c
--- a/sys/ufs/ufs/ufs_inode.c   Wed Sep 14 09:41:24 2005 +0000
+++ b/sys/ufs/ufs/ufs_inode.c   Wed Sep 14 10:33:25 2005 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ufs_inode.c,v 1.52 2005/08/28 19:37:59 thorpej Exp $   */
+/*     $NetBSD: ufs_inode.c,v 1.53 2005/09/14 10:33:25 yamt Exp $      */
 
 /*
  * Copyright (c) 1991, 1993
@@ -37,7 +37,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ufs_inode.c,v 1.52 2005/08/28 19:37:59 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ufs_inode.c,v 1.53 2005/09/14 10:33:25 yamt Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_ffs.h"
@@ -199,6 +199,7 @@
     int flags)
 {
        off_t oldeof, neweof, oldeob, oldeop, neweob, pagestart;
+       off_t eob;
        struct uvm_object *uobj;
        struct genfs_node *gp = VTOG(vp);
        int i, delta, error, npages;
@@ -278,12 +279,13 @@
         * (since they now have backing store) and unbusy them.
         */
 
+       GOP_SIZE(vp, off + len, &eob, GOP_SIZE_WRITE);
        simple_lock(&uobj->vmobjlock);
        for (i = 0; i < npages; i++) {
                if (error) {
                        pgs[i]->flags |= PG_RELEASED;
                } else if (off <= pagestart + (i << PAGE_SHIFT) &&
-                   pagestart + ((i + 1) << PAGE_SHIFT) <= off + len) {
+                   pagestart + ((i + 1) << PAGE_SHIFT) <= eob) {
                        pgs[i]->flags &= ~PG_RDONLY;
                }
        }