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rcu: Add KCSAN stubs to update.c

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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>
This commit is contained in:
Paul E. McKenney 2020-04-14 10:19:02 -07:00
parent 353159365e
commit c76e7e0bce
1 changed files with 13 additions and 0 deletions
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13
kernel/rcu/update.c
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@ -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);