diff --git a/include/linux/sched.h b/include/linux/sched.h
index 511cc45..b0bf326 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1329,19 +1329,17 @@
  * @tsk: Task structure to be checked.
  *
  * Check if a task structure is the first user space task the kernel created.
- *
- * TODO: We should inline this function after some cleanups in pid_namespace.h
  */
-extern int is_global_init(struct task_struct *tsk);
+static inline int is_global_init(struct task_struct *tsk)
+{
+	return tsk->pid == 1;
+}
 
 /*
  * is_container_init:
  * check whether in the task is init in its own pid namespace.
  */
-static inline int is_container_init(struct task_struct *tsk)
-{
-	return tsk->pid == 1;
-}
+extern int is_container_init(struct task_struct *tsk);
 
 extern struct pid *cad_pid;