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| author | Marco Elver <elver@google.com> | 2020-05-21 16:20:44 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 20:04:03 +0200 |
| commit | 44b97dccb2291a56454549827adc5e99d94811f3 (patch) | |
| tree | 51af718dd6e23737c8ee29bab352f52c71a995e6 /.gitattributes | |
| parent | 0bb9ab3a6fa7ca9f627d85f6f683fae51598e8c8 (diff) | |
| download | linux-44b97dccb2291a56454549827adc5e99d94811f3.tar.bz2 | |
compiler.h: Remove data_race() and unnecessary checks from {READ,WRITE}_ONCE()
The volatile accesses no longer need to be wrapped in data_race()
because compilers that emit instrumentation distinguishing volatile
accesses are required for KCSAN.
Consequently, the explicit kcsan_check_atomic*() are no longer required
either since the compiler emits instrumentation distinguishing the
volatile accesses.
Finally, simplify __READ_ONCE_SCALAR() and remove __WRITE_ONCE_SCALAR().
[ bp: Convert commit message to passive voice. ]
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20200521142047.169334-9-elver@google.com
Diffstat (limited to '.gitattributes')
0 files changed, 0 insertions, 0 deletions