1 files changed, 21 insertions, 0 deletions
diff --git a/kernel/nscommon.c b/kernel/nscommon.c
new file mode 100644
index 000000000000..ebf4783d0505
--- /dev/null
+++ b/kernel/nscommon.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/ns_common.h>
+
+int ns_common_init(struct ns_common *ns, const struct proc_ns_operations *ops,
+		   bool alloc_inum)
+{
+	if (alloc_inum) {
+		int ret;
+		ret = proc_alloc_inum(&ns->inum);
+		if (ret)
+			return ret;
+	}
+	refcount_set(&ns->count, 1);
+	ns->stashed = NULL;
+	ns->ops = ops;
+	ns->ns_id = 0;
+	RB_CLEAR_NODE(&ns->ns_tree_node);
+	INIT_LIST_HEAD(&ns->ns_list_node);
+	return 0;
+}