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Minor cleanup. If we are doing a mount update, and we pass in

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an "export" flag indicating that we are trying to NFS export the
filesystem, and the MSDOSFS_LARGEFS flag is set on the filesystem,
then deny the mount update and export request.  Otherwise,
let the full mount update proceed normally.
MSDOSFS_LARGES and NFS don't mix because of the way inodes are calculated
for MSDOSFS_LARGEFS.

MFC after:	3 days
This commit is contained in:
Craig Rodrigues 2006-12-09 01:49:19 +00:00
parent 6890d7af94
commit e9022ef898
1 changed files with 8 additions and 4 deletions
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12
sys/fs/msdosfs/msdosfs_vfsops.c
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@ -262,11 +262,15 @@ msdosfs_mount(struct mount *mp, struct thread *td)
pmp = VFSTOMSDOSFS(mp);
if (vfs_flagopt(mp->mnt_optnew, "export", NULL, 0)) {
/* Process export requests. */
if ((pmp->pm_flags & MSDOSFS_LARGEFS) != 0)
/*
* Forbid export requests if filesystem has
* MSDOSFS_LARGEFS flag set.
*/
if ((pmp->pm_flags & MSDOSFS_LARGEFS) != 0) {
vfs_mount_error(mp,
"MSDOSFS_LARGEFS flag set, cannot export");
return (EOPNOTSUPP);
else
return (0);
}
}
if (!(pmp->pm_flags & MSDOSFSMNT_RONLY) &&
vfs_flagopt(mp->mnt_optnew, "ro", NULL, 0)) {