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In vfs_export(), if we specify MNT_DELEXPORT in the struct export_args,

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after we perform the operations to delete the export,
call vfs_deleteopt() to delete the "export" mount option from
the linked list of mount options associated with that mount point.

This fixes one scenario:
- put a filesystem in /etc/exports to export it
- remove the filesystem from /etc/exports to delete the export and restart
  mountd
- try to do a "mount -u -o ro" or "mount -u -o rw" on that filesystem
  now that it is no  longer exported.
This commit is contained in:
Craig Rodrigues 2006-12-16 15:50:36 +00:00
parent 2892f3bbfa
commit 03eff5830a
1 changed files with 4 additions and 1 deletions
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5
sys/kern/vfs_export.c
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@ -234,8 +234,10 @@ vfs_export(struct mount *mp, struct export_args *argp)
nep = mp->mnt_export;
if (argp->ex_flags & MNT_DELEXPORT) {
if (nep == NULL)
if (nep == NULL) {
vfs_deleteopt(mp->mnt_optnew, "export");
return (ENOENT);
}
if (mp->mnt_flag & MNT_EXPUBLIC) {
vfs_setpublicfs(NULL, NULL, NULL);
MNT_ILOCK(mp);
@ -249,6 +251,7 @@ vfs_export(struct mount *mp, struct export_args *argp)
MNT_ILOCK(mp);
mp->mnt_flag &= ~(MNT_EXPORTED | MNT_DEFEXPORTED);
MNT_IUNLOCK(mp);
vfs_deleteopt(mp->mnt_optnew, "export");
}
if (argp->ex_flags & MNT_EXPORTED) {
if (nep == NULL) {