1// SPDX-License-Identifier: GPL-2.0
 2
 3#include <linux/pid_namespace.h>
 4#include <linux/cleanup.h>
 5
 6struct pid_namespace *rust_helper_get_pid_ns(struct pid_namespace *ns)
 7{
 8	return get_pid_ns(ns);
 9}
10
11void rust_helper_put_pid_ns(struct pid_namespace *ns)
12{
13	put_pid_ns(ns);
14}
15
16/* Get a reference on a task's pid namespace. */
17struct pid_namespace *rust_helper_task_get_pid_ns(struct task_struct *task)
18{
19	struct pid_namespace *pid_ns;
20
21	guard(rcu)();
22	pid_ns = task_active_pid_ns(task);
23	if (pid_ns)
24		get_pid_ns(pid_ns);
25	return pid_ns;
26}