[src/trunk]: src/sys/fs/msdosfs If getdisksize() fails (happens e.g. on fss b...

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

details:   https://anonhg.NetBSD.org/src/rev/ebb9e69fb103
branches:  trunk
changeset: 753891:ebb9e69fb103
user:      pooka <pooka%NetBSD.org@localhost>
date:      Tue Apr 13 10:11:08 2010 +0000

description:
If getdisksize() fails (happens e.g. on fss block devices), don't
give up if we don't really need the information provided by it.

diffstat:

 sys/fs/msdosfs/msdosfs_vfsops.c |  12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diffs (33 lines):

diff -r 3f462188d701 -r ebb9e69fb103 sys/fs/msdosfs/msdosfs_vfsops.c
--- a/sys/fs/msdosfs/msdosfs_vfsops.c   Tue Apr 13 10:06:43 2010 +0000
+++ b/sys/fs/msdosfs/msdosfs_vfsops.c   Tue Apr 13 10:11:08 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: msdosfs_vfsops.c,v 1.83 2010/04/11 10:26:25 mlelstv Exp $      */
+/*     $NetBSD: msdosfs_vfsops.c,v 1.84 2010/04/13 10:11:08 pooka Exp $        */
 
 /*-
  * Copyright (C) 1994, 1995, 1997 Wolfgang Solfrank.
@@ -48,7 +48,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: msdosfs_vfsops.c,v 1.83 2010/04/11 10:26:25 mlelstv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: msdosfs_vfsops.c,v 1.84 2010/04/13 10:11:08 pooka Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_compat_netbsd.h"
@@ -489,8 +489,12 @@
                goto error_exit;
 
        error = getdisksize(devvp, &psize, &secsize);
-       if (error)
-               goto error_exit;
+       if (error) {
+               if (argp->flags & MSDOSFSMNT_GEMDOSFS)
+                       goto error_exit;
+               secsize = DEV_BSIZE;
+               psize = 0;
+       }
 
        if (argp->flags & MSDOSFSMNT_GEMDOSFS) {
                bsize = secsize;