}
EXPORT_SYMBOL_GPL(__put_net);
+/**
+ * get_net_ns - increment the refcount of the network namespace
+ * @ns: common namespace (net)
+ *
+ * Returns the net's common namespace.
+ */
+struct ns_common *get_net_ns(struct ns_common *ns)
+{
+ return &get_net(container_of(ns, struct net, ns))->ns;
+}
+EXPORT_SYMBOL_GPL(get_net_ns);
+
struct net *get_net_ns_by_fd(int fd)
{
struct file *file;
fput(file);
return net;
}
-
-#else
-struct net *get_net_ns_by_fd(int fd)
-{
- return ERR_PTR(-EINVAL);
-}
-#endif
EXPORT_SYMBOL_GPL(get_net_ns_by_fd);
+#endif
struct net *get_net_ns_by_pid(pid_t pid)
{