1 files changed, 5 insertions, 3 deletions

diff --git a/include/linux/pid.h b/include/linux/pid.h
index c7980810eb09..c21c7e8124a7 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -60,7 +60,7 @@ struct pid
         /* lists of tasks that use this pid */
         struct hlist_head tasks[PIDTYPE_MAX];
         struct rcu_head rcu;
-        int level;
+        unsigned int level;
         struct upid numbers[1];
 };
 
@@ -89,9 +89,11 @@ extern struct pid *get_task_pid(struct task_struct *task, enum pid_type type);
  * attach_pid() and detach_pid() must be called with the tasklist_lock
  * write-held.
  */
-extern int attach_pid(struct task_struct *task, enum pid_type type,
-                      struct pid *pid);
+extern void attach_pid(struct task_struct *task, enum pid_type type,
+                        struct pid *pid);
 extern void detach_pid(struct task_struct *task, enum pid_type);
+extern void change_pid(struct task_struct *task, enum pid_type,
+                        struct pid *pid);
 extern void transfer_pid(struct task_struct *old, struct task_struct *new,
                          enum pid_type);