From 7c30e3f97464fcc49a875ba8343d2c55edca74a0 Mon Sep 17 00:00:00 2001
From: Jake Hillion <jake@hillion.co.uk>
Date: Fri, 15 Apr 2022 21:55:28 +0100
Subject: [PATCH] added unshare_umount example

---
 examples/unshare_umount.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 examples/unshare_umount.c

diff --git a/examples/unshare_umount.c b/examples/unshare_umount.c
new file mode 100644
index 0000000..7a7c1a9
--- /dev/null
+++ b/examples/unshare_umount.c
@@ -0,0 +1,15 @@
+#define _GNU_SOURCE
+#include <sched.h>
+#include <sys/mount.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <stdio.h>
+
+int main() {
+	if (unshare(CLONE_NEWNS))
+		perror("unshare");
+	if (mount("none", "/", NULL, MS_REC|MS_PRIVATE, NULL))
+		perror("mount");
+	if (umount("/"))
+		perror("umount");
+}