1 files changed, 9 insertions, 0 deletions

diff --git a/sbin/mount_nfs/mount_nfs.c b/sbin/mount_nfs/mount_nfs.c
index 48c0a1fb63d1..51f4e434c53f 100644
--- a/sbin/mount_nfs/mount_nfs.c
+++ b/sbin/mount_nfs/mount_nfs.c
@@ -516,6 +516,15 @@ main(int argc, char *argv[])
 	/* resolve the mountpoint with realpath(3) */
 	(void)checkpath(name, mntpath);
 
+	/*
+	 * XXX This should go away when this NFS implementation
+	 *     is fully converted to nmount(2) semantics.
+	 */
+	if (mntflags & MNT_RDONLY)
+		build_iovec(&iov, &iovlen, "ro", NULL, 0);
+	else if (mntflags & MNT_UPDATE)
+		build_iovec(&iov, &iovlen, "noro", NULL, 0);
+
 	build_iovec(&iov, &iovlen, "nfs_args", nfsargsp, sizeof(*nfsargsp));
 	build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1);
 	build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1);