rust/helpers/pid_namespace.c

   1 // SPDX-License-Identifier: GPL-2.0
   2
   3 #include <linux/pid_namespace.h>
   4 #include <linux/cleanup.h>
   5
   6 struct pid_namespace *rust_helper_get_pid_ns(struct pid_namespace *ns)
   7 {
   8         return get_pid_ns(ns);
   9 }
  10
  11 void 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. */
  17 struct 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 }