[src/trunk]: src/sys/fs/udf A not rewritable disc can be pseudo-overwritable....

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

details:   https://anonhg.NetBSD.org/src/rev/2bdb49a6998f
branches:  trunk
changeset: 761272:2bdb49a6998f
user:      reinoud <reinoud%NetBSD.org@localhost>
date:      Sat Jan 22 18:02:18 2011 +0000

description:
A not rewritable disc can be pseudo-overwritable. A pseudo-overwritable disc
can overwrite its logical volume integrity sequence so no need to make it
append-only for this class of discs.

diffstat:

 sys/fs/udf/udf_subr.c |  9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diffs (37 lines):

diff -r 5ec4ae9bd42a -r 2bdb49a6998f sys/fs/udf/udf_subr.c
--- a/sys/fs/udf/udf_subr.c     Sat Jan 22 17:31:31 2011 +0000
+++ b/sys/fs/udf/udf_subr.c     Sat Jan 22 18:02:18 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: udf_subr.c,v 1.112 2011/01/22 14:51:43 reinoud Exp $ */
+/* $NetBSD: udf_subr.c,v 1.113 2011/01/22 18:02:18 reinoud Exp $ */
 
 /*
  * Copyright (c) 2006, 2008 Reinoud Zandijk
@@ -29,7 +29,7 @@
 
 #include <sys/cdefs.h>
 #ifndef lint
-__KERNEL_RCSID(0, "$NetBSD: udf_subr.c,v 1.112 2011/01/22 14:51:43 reinoud Exp $");
+__KERNEL_RCSID(0, "$NetBSD: udf_subr.c,v 1.113 2011/01/22 18:02:18 reinoud Exp $");
 #endif /* not lint */
 
 
@@ -1460,7 +1460,6 @@
        logvol_integrity = udf_rw32(ump->logvol_integrity->integrity_type);
        if (logvol_integrity == UDF_INTEGRITY_CLOSED) {
                if ((space < 3) && (lvflag & UDF_APPENDONLY_LVINT)) {
-                       /* don't allow this logvol to be opened */
                        /* TODO extent LVINT space if possible */
                        return EROFS;
                }
@@ -2056,7 +2055,9 @@
                ump->lvopen  = UDF_WRITE_LVINT;
                ump->lvclose = UDF_WRITE_LVINT;
                if ((ump->discinfo.mmc_cur & MMC_CAP_REWRITABLE) == 0)
-                       ump->lvopen  |= UDF_APPENDONLY_LVINT;
+                       ump->lvopen  |=  UDF_APPENDONLY_LVINT;
+               if ((ump->discinfo.mmc_cur & MMC_CAP_PSEUDOOVERWRITE))
+                       ump->lvopen  &= ~UDF_APPENDONLY_LVINT;
        }
 
        /*