Resguardo inicial

linux-7.2.3/rust/helpers/pid_namespace.c

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/pid_namespace.h>
+#include <linux/cleanup.h>
+
+__rust_helper struct pid_namespace *
+rust_helper_get_pid_ns(struct pid_namespace *ns)
+{
+	return get_pid_ns(ns);
+}
+
+__rust_helper void rust_helper_put_pid_ns(struct pid_namespace *ns)
+{
+	put_pid_ns(ns);
+}
+
+/* Get a reference on a task's pid namespace. */
+__rust_helper struct pid_namespace *
+rust_helper_task_get_pid_ns(struct task_struct *task)
+{
+	struct pid_namespace *pid_ns;
+
+	guard(rcu)();
+	pid_ns = task_active_pid_ns(task);
+	if (pid_ns)
+		get_pid_ns(pid_ns);
+	return pid_ns;
+}