linux-kernel - [PATCH 3/3] tracing: Add rcu annotation for event_trigger

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Date:	Sat, 21 Dec 2013 16:44:02 -0600
From:	Tom Zanussi <tom.zanussi@...ux.intel.com>
To:	rostedt@...dmis.org
Cc:	linux-kernel@...r.kernel.org,
	Tom Zanussi <tom.zanussi@...ux.intel.com>
Subject: [PATCH 3/3] tracing: Add rcu annotation for event_trigger_data.filter

sparse complains about rcu_assign_pointer() and RCU_INIT_POINTER()
assignments to event_trigger_data filter; annotate it with __rcu to
get rid of the warning.

Reported-by: kbuild test robot <fengguang.wu@...el.com>
Signed-off-by: Tom Zanussi <tom.zanussi@...ux.intel.com>
---
 kernel/trace/trace.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 433bfc5..24b16fb 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -1055,7 +1055,7 @@ struct event_trigger_data {
 	int				ref;
 	struct event_trigger_ops	*ops;
 	struct event_command		*cmd_ops;
-	struct event_filter		*filter;
+	struct event_filter __rcu	*filter;
 	char				*filter_str;
 	void				*private_data;
 	struct list_head		list;
-- 
1.8.3.1

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