Messages in this thread Patch in this message | | | Date | Mon, 11 May 2020 20:59:47 -0000 | From | "tip-bot2 for Paul E. McKenney" <> | Subject | [tip: core/rcu] srcu: Add KCSAN stubs |
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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 <paulmck@kernel.org> AuthorDate: Mon, 13 Apr 2020 16:33:01 -07:00 Committer: Paul E. McKenney <paulmck@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 <paulmck@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;
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