From 65f75a733246bfbedad5d194208d3a4dff5e602f Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 3 Aug 2011 16:21:05 -0700
Subject: [PATCH] --- yaml --- r: 262303 b: refs/heads/master c:
 a7295898a1d2e501427f557111c2b4bdfc90b1ed h: refs/heads/master i:   262301:
 9acc4996b2db9f8d5c07e5d1fb83ee51c7d5042c   262299:
 9292886307919de2d3ae255268d20f3064bddfbd   262295:
 8e5de48a5e072bc8d52aeb9981ca115c0cfbd71f   262287:
 58759b58f6fdb3a530603a5831f7f4cfb146b410   262271:
 38b4dff722e11446ddbc7859e5410e2be6364b31 v: v3

---
 [refs]                   | 2 +-
 trunk/kernel/taskstats.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index e8c4e2766d82..36654109b1b2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: dfc428b656c4693a2334a8d9865b430beddb562a
+refs/heads/master: a7295898a1d2e501427f557111c2b4bdfc90b1ed
diff --git a/trunk/kernel/taskstats.c b/trunk/kernel/taskstats.c
index a09a54936f19..e19ce1454ee1 100644
--- a/trunk/kernel/taskstats.c
+++ b/trunk/kernel/taskstats.c
@@ -304,7 +304,7 @@ static int add_del_listener(pid_t pid, const struct cpumask *mask, int isadd)
 			listeners = &per_cpu(listener_array, cpu);
 			down_write(&listeners->sem);
 			list_for_each_entry(s2, &listeners->list, list) {
-				if (s2->pid == pid)
+				if (s2->pid == pid && s2->valid)
 					goto exists;
 			}
 			list_add(&s->list, &listeners->list);