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For multi-session CD-ROMs, we have to account for previous sessions as 

well in volume_space_size.  Otherwise, NFS exports won't work.
This commit is contained in:
Joerg Wunsch 1997-04-29 17:11:51 +00:00
parent d6ef03d3fa
commit 7d322c735e
2 changed files with 20 additions and 2 deletions
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11
sys/fs/cd9660/cd9660_vfsops.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)cd9660_vfsops.c 8.18 (Berkeley) 5/22/95
* $Id: cd9660_vfsops.c,v 1.22 1997/04/14 18:15:46 phk Exp $
* $Id: cd9660_vfsops.c,v 1.23 1997/04/29 15:52:53 joerg Exp $
*/
#include <sys/param.h>
@ -313,6 +313,15 @@ iso_mountfs(devvp, mp, p, argp)
isonum_733 (high_sierra?
pri_sierra->volume_space_size:
pri->volume_space_size);
/*
* Since an ISO9660 multi-session CD can also access previous
* sessions, we have to include them into the space consider-
* ations. This doesn't yield a very accurate number since
* parts of the old sessions might be inaccessible now, but we
* can't do much better. This is also important for the NFS
* filehandle validation.
*/
isomp->volume_space_size += argp->ssector;
bcopy (rootp, isomp->root, sizeof isomp->root);
isomp->root_extent = isonum_733 (rootp->extent);
isomp->root_size = isonum_733 (rootp->size);

11
sys/isofs/cd9660/cd9660_vfsops.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)cd9660_vfsops.c 8.18 (Berkeley) 5/22/95
* $Id: cd9660_vfsops.c,v 1.22 1997/04/14 18:15:46 phk Exp $
* $Id: cd9660_vfsops.c,v 1.23 1997/04/29 15:52:53 joerg Exp $
*/
#include <sys/param.h>
@ -313,6 +313,15 @@ iso_mountfs(devvp, mp, p, argp)
isonum_733 (high_sierra?
pri_sierra->volume_space_size:
pri->volume_space_size);
/*
* Since an ISO9660 multi-session CD can also access previous
* sessions, we have to include them into the space consider-
* ations. This doesn't yield a very accurate number since
* parts of the old sessions might be inaccessible now, but we
* can't do much better. This is also important for the NFS
* filehandle validation.
*/
isomp->volume_space_size += argp->ssector;
bcopy (rootp, isomp->root, sizeof isomp->root);
isomp->root_extent = isonum_733 (rootp->extent);
isomp->root_size = isonum_733 (rootp->size);