The following commit has been merged into the core/rcu branch of tip:
Commit-ID: c76e7e0bce10876e6b08ac2ce8af5ef7cba684ff
Gitweb: https://git.kernel.org/tip/c76e7e0bce10876e6b08ac2ce8af5ef7cba684ff
Author: Paul E. McKenney <paulmck@xxxxxxxxxx>
AuthorDate: Tue, 14 Apr 2020 10:19:02 -07:00
Committer: Paul E. McKenney <paulmck@xxxxxxxxxx>
CommitterDate: Mon, 27 Apr 2020 11:03:50 -07:00
rcu: Add KCSAN stubs to update.c
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/update.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 28a8bdc..74a698a 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -51,6 +51,19 @@
#endif
#define MODULE_PARAM_PREFIX "rcupdate."
+#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
+
#ifndef CONFIG_TINY_RCU
module_param(rcu_expedited, int, 0);
module_param(rcu_normal, int, 0);
|