[tip: core/rcu] rcu: Add KCSAN stubs
From: tip-bot2 for Paul E. McKenney
Date: Mon May 11 2020 - 17:00:36 EST
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: 353159365e725fab7b3bf2817bec0ecd16706a38
Gitweb: https://git.kernel.org/tip/353159365e725fab7b3bf2817bec0ecd16706a38
Author: Paul E. McKenney <paulmck@xxxxxxxxxx>
AuthorDate: Mon, 13 Apr 2020 16:36:29 -07:00
Committer: Paul E. McKenney <paulmck@xxxxxxxxxx>
CommitterDate: Mon, 27 Apr 2020 11:00:06 -07:00
rcu: Add KCSAN stubs
This commit adds stubs for KCSAN's data_race(), ASSERT_EXCLUSIVE_WRITER(),
and ASSERT_EXCLUSIVE_ACCESS() macros to allow code using these macros to
move ahead.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
kernel/rcu/tree.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index d9a49cd..156ac8d 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -67,6 +67,19 @@
#endif
#define MODULE_PARAM_PREFIX "rcutree."
+#ifndef data_race
+#define data_race(expr) \
+ ({ \
+ expr; \
+ })
+#endif
+#ifndef ASSERT_EXCLUSIVE_WRITER
+#define ASSERT_EXCLUSIVE_WRITER(var) do { } while (0)
+#endif
+#ifndef ASSERT_EXCLUSIVE_ACCESS
+#define ASSERT_EXCLUSIVE_ACCESS(var) do { } while (0)
+#endif
+
/* Data structures. */
/*