--- linux-3.3/fs/proc/base.c~	2012-03-19 21:44:42.000000000 +0100
+++ linux-3.3/fs/proc/base.c	2012-03-21 12:25:28.051092423 +0100
@@ -568,6 +568,8 @@
 				 struct task_struct *task,
 				 int hide_pid_min)
 {
+	if (vx_check(0, VS_WATCH_P))
+		return true;
 	if (pid->hide_pid < hide_pid_min)
 		return true;
 	if (in_group_p(pid->pid_gid))