[PATCH v2 3/4] rcuwait: Annotate task_struct with __rcu

From: Joel Fernandes (Google)
Date: Wed Mar 20 2019 - 20:35:02 EST


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@xxxxxxxxxxxxx>
Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
---
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