diff options
| -rw-r--r-- | sys/fs/unionfs/union_vfsops.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/fs/unionfs/union_vfsops.c b/sys/fs/unionfs/union_vfsops.c index 2aa7a9c..70634c8 100644 --- a/sys/fs/unionfs/union_vfsops.c +++ b/sys/fs/unionfs/union_vfsops.c @@ -139,14 +139,18 @@ unionfs_domount(struct mount *mp, struct thread *td) copymode = UNIONFS_TRADITIONAL; /* default */ ndp = &nd; - if (mp->mnt_flag & MNT_ROOTFS) + if (mp->mnt_flag & MNT_ROOTFS) { + vfs_mount_error(mp, "Cannot union mount root filesystem"); return (EOPNOTSUPP); + } /* * Update is a no operation. */ - if (mp->mnt_flag & MNT_UPDATE) + if (mp->mnt_flag & MNT_UPDATE) { + vfs_mount_error(mp, "unionfs does not support mount update"); return (EOPNOTSUPP); + } /* * Get argument |
