From 288dbb07e9b5814277ce3663b02c8428101f42d7 Mon Sep 17 00:00:00 2001
From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Date: Tue, 30 Sep 2008 01:51:12 -0400
Subject: [PATCH] --- yaml --- r: 116634 b: refs/heads/master c:
 9a1e9693f534174945154197fec4ec92f168ce21 h: refs/heads/master v: v3

---
 [refs]                    | 2 +-
 trunk/kernel/tracepoint.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index f82f038ba04b..4196c0df5ea5 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ca2db6cf30d6a45798b7a760d0c4f7735b16799d
+refs/heads/master: 9a1e9693f534174945154197fec4ec92f168ce21
diff --git a/trunk/kernel/tracepoint.c b/trunk/kernel/tracepoint.c
index db39961a0d03..f2b7c28a4708 100644
--- a/trunk/kernel/tracepoint.c
+++ b/trunk/kernel/tracepoint.c
@@ -356,6 +356,8 @@ int tracepoint_probe_register(const char *name, void *probe)
 	mutex_lock(&tracepoints_mutex);
 	entry = get_tracepoint(name);
 	WARN_ON(!entry);
+	if (entry->rcu_pending)
+		rcu_barrier_sched();
 	tracepoint_entry_free_old(entry, old);
 end:
 	mutex_unlock(&tracepoints_mutex);
@@ -392,6 +394,8 @@ int tracepoint_probe_unregister(const char *name, void *probe)
 	entry = get_tracepoint(name);
 	if (!entry)
 		goto end;
+	if (entry->rcu_pending)
+		rcu_barrier_sched();
 	tracepoint_entry_free_old(entry, old);
 	remove_tracepoint(name);	/* Ignore busy error message */
 	ret = 0;