2 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index aea13ec31aba..14376ebf4bac 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -21,6 +21,8 @@ struct pid_namespace {
         int last_pid;
         struct task_struct *child_reaper;
         struct kmem_cache *pid_cachep;
+        int level;
+        struct pid_namespace *parent;
 };
 
 extern struct pid_namespace init_pid_ns;
diff --git a/kernel/pid.c b/kernel/pid.c
index bb0785109d39..c7346fb801fc 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -67,7 +67,8 @@ struct pid_namespace init_pid_ns = {
                 [ 0 ... PIDMAP_ENTRIES-1] = { ATOMIC_INIT(BITS_PER_PAGE), NULL }
         },
         .last_pid = 0,
-        .child_reaper = &init_task
+        .level = 0,
+        .child_reaper = &init_task,
 };
 
 int is_global_init(struct task_struct *tsk)