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-rw-r--r--sys/sys/mount.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/sys/mount.h b/sys/sys/mount.h
index 562fa191fe24..4b60055ca6dd 100644
--- a/sys/sys/mount.h
+++ b/sys/sys/mount.h
@@ -373,9 +373,11 @@ void __mnt_vnode_markerfree_active(struct vnode **mvp, struct mount *);
#define MNT_SNAPSHOT 0x0000000001000000ULL /* snapshot the filesystem */
#define MNT_NONBUSY 0x0000000004000000ULL /* check vnode use counts. */
#define MNT_BYFSID 0x0000000008000000ULL /* specify filesystem by ID. */
+#define MNT_NOCOVER 0x0000001000000000ULL /* Do not cover a mount point */
+#define MNT_EMPTYDIR 0x0000002000000000ULL /* Only mount on empty dir */
#define MNT_CMDFLAGS (MNT_UPDATE | MNT_DELEXPORT | MNT_RELOAD | \
MNT_FORCE | MNT_SNAPSHOT | MNT_NONBUSY | \
- MNT_BYFSID)
+ MNT_BYFSID | MNT_NOCOVER | MNT_EMPTYDIR)
/*
* Internal filesystem control flags stored in mnt_kern_flag.
*