1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/namespacefs.h b/include/linux/namespacefs.h
new file mode 100644
index 00000000000000..020bf5bbb3b534
--- /dev/null
+++ b/include/linux/namespacefs.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * namespacefs.h - a pseudo file system for examining namespaces.
+ */
+
+#ifndef _NAMESPACEFS_H_
+#define _NAMESPACEFS_H_
+
+#ifdef CONFIG_NAMESPACE_FS
+
+#include <linux/fs.h>
+
+int namespacefs_create_pid_ns_dir(struct pid_namespace *ns);
+
+void namespacefs_remove_pid_ns_dir(struct pid_namespace *ns);
+
+#else
+
+static inline int
+namespacefs_create_pid_ns_dir(struct pid_namespace *ns)
+{
+	return 0;
+}
+
+static inline void
+namespacefs_remove_pid_ns_dir(struct pid_namespace *ns)
+{
+}
+
+#endif /* CONFIG_NAMESPACE_FS */
+
+#endif