#include <linux/tty.h>
#include <linux/signal.h>
#include <linux/cn_proc.h>
+#include <linux/vs_base.h>
#include <linux/vs_cvirt.h>
#include <linux/compat.h>
if (!thread_group_leader(p))
goto out;
- if (p->parent == group_leader) {
+ if (p->real_parent == group_leader) {
err = -EPERM;
if (p->signal->session != group_leader->signal->session)
goto out;