The following commit has been merged into the core/rcu branch of tip: Commit-ID: 4f58820fd710e0563e22420c07c03c5ccec948bf Gitweb: https://git.kernel.org/tip/4f58820fd710e0563e22420c07c03c5ccec948bf Author: Paul E. McKenney <paul...@kernel.org> AuthorDate: Mon, 13 Apr 2020 16:33:01 -07:00 Committer: Paul E. McKenney <paul...@kernel.org> CommitterDate: Mon, 27 Apr 2020 11:01:15 -07:00
srcu: 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 <paul...@kernel.org> --- kernel/rcu/srcutree.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c index 0c71505..ba2b751 100644 --- a/kernel/rcu/srcutree.c +++ b/kernel/rcu/srcutree.c @@ -29,6 +29,19 @@ #include "rcu.h" #include "rcu_segcblist.h" +#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 + /* Holdoff in nanoseconds for auto-expediting. */ #define DEFAULT_SRCU_EXP_HOLDOFF (25 * 1000) static ulong exp_holdoff = DEFAULT_SRCU_EXP_HOLDOFF;