From: Pranith Kumar <bobby.prani@gmail.com>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Josh Triplett <josh@joshtriplett.org>,
Steven Rostedt <rostedt@goodmis.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
linux-kernel@vger.kernel.org (open list:READ-COPY UPDATE...)
Subject: [RFC PATCH] rcu: Add sparse check for RCU_INIT_POINTER()
Date: Thu, 25 Sep 2014 14:03:34 -0400 [thread overview]
Message-ID: <1411668214-19199-1-git-send-email-bobby.prani@gmail.com> (raw)
Add a sparse check when RCU_INIT_POINTER() is used to assign a non __rcu
annotated pointer.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
---
include/linux/rcupdate.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index a4a819f..a033d8b 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -1047,6 +1047,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
*/
#define RCU_INIT_POINTER(p, v) \
do { \
+ rcu_dereference_sparse(p, __rcu); \
p = RCU_INITIALIZER(v); \
} while (0)
--
2.1.0
next reply other threads:[~2014-09-25 18:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-25 18:03 Pranith Kumar [this message]
2014-09-25 18:10 ` josh
2014-09-25 18:39 ` Pranith Kumar
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