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Date: Wed, 20 Mar 2019 20:34:25 -0400
From: "Joel Fernandes (Google)" <joel@...lfernandes.org>
To: linux-kernel@...r.kernel.org
Cc: "Joel Fernandes (Google)" <joel@...lfernandes.org>,
"Paul E . McKenney" <paulmck@...ux.ibm.com>,
Ingo Molnar <mingo@...hat.com>,
Josh Triplett <josh@...htriplett.org>,
keescook@...omium.org,
kernel-hardening@...ts.openwall.com,
kernel-team@...roid.com,
Lai Jiangshan <jiangshanlai@...il.com>,
Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
Morten Rasmussen <morten.rasmussen@....com>,
Peter Zijlstra <peterz@...radead.org>,
rcu@...r.kernel.org,
Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH v2 3/4] rcuwait: Annotate task_struct with __rcu
This suppresses sparse error generated due to the recently added
rcu_assign_pointer sparse check.
percpu-rwsem.c:162:9: sparse: error: incompatible types in comparison expression
exit.c:316:16: sparse: error: incompatible types in comparison expression
[From an RCU perspective]
Reviewed-by: Paul E. McKenney <paulmck@...ux.ibm.com>
Signed-off-by: Joel Fernandes (Google) <joel@...lfernandes.org>
---
include/linux/rcuwait.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/rcuwait.h b/include/linux/rcuwait.h
index 90bfa3279a01..563290fc194f 100644
--- a/include/linux/rcuwait.h
+++ b/include/linux/rcuwait.h
@@ -18,7 +18,7 @@
* awoken.
*/
struct rcuwait {
- struct task_struct *task;
+ struct task_struct __rcu *task;
};
#define __RCUWAIT_INITIALIZER(name) \
--
2.21.0.225.g810b269d1ac-goog
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