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| author |   Marco Elver <elver@google.com> | 2020-06-16 14:36:24 +0200 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@kernel.org> | 2020-06-29 12:04:48 -0700 |
| commit | 7e766560e6e2c1cf2782f00e63c31564e4c9f0fe (patch) | |
| tree | fb95456a7519cd011f39be32880cb0d9bce2d314 /kernel/kcsan | |
| parent | kcsan: Rename test.c to selftest.c (diff) | |
| download | linux-dev-7e766560e6e2c1cf2782f00e63c31564e4c9f0fe.tar.xz linux-dev-7e766560e6e2c1cf2782f00e63c31564e4c9f0fe.zip | |
kcsan: Remove existing special atomic rules
Remove existing special atomic rules from kcsan_is_atomic_special()
because they are no longer needed. Since we rely on the compiler
emitting instrumentation distinguishing volatile accesses, the rules
have become redundant.
Let's keep kcsan_is_atomic_special() around, so that we have an obvious
place to add special rules should the need arise in future.
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/kcsan')
| -rw-r--r-- | kernel/kcsan/atomic.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/kcsan/atomic.h b/kernel/kcsan/atomic.h index be9e625227f3..75fe701f4127 100644 --- a/kernel/kcsan/atomic.h +++ b/kernel/kcsan/atomic.h @@ -3,8 +3,7 @@ #ifndef _KERNEL_KCSAN_ATOMIC_H #define _KERNEL_KCSAN_ATOMIC_H -#include <linux/jiffies.h> -#include <linux/sched.h> +#include <linux/types.h> /* * Special rules for certain memory where concurrent conflicting accesses are @@ -13,8 +12,7 @@ */ static bool kcsan_is_atomic_special(const volatile void *ptr) { - /* volatile globals that have been observed in data races. */ - return ptr == &jiffies || ptr == ¤t->state; + return false; } #endif /* _KERNEL_KCSAN_ATOMIC_H */ |