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| author | Paul E. McKenney <paulmck@kernel.org> | 2019-12-21 10:41:48 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-02-20 16:03:31 -0800 |
| commit | 202489101f2e6cee3f6dffc087a4abd5fdfcebda (patch) | |
| tree | cedef3be1fb42eb8f0a08d7e1652ec998bd9a4ed /kernel/rcu/rcu_segcblist.c | |
| parent | beabc806f5aaa158fc90a939215e8b44ee9d7acc (diff) | |
rcutorture: Fix rcu_torture_one_read()/rcu_torture_writer() data race
The ->rtort_pipe_count field in the rcu_torture structure checks for
too-short grace periods, and is therefore read by rcutorture's readers
while being updated by rcutorture's writers. This commit therefore
adds the needed READ_ONCE() and WRITE_ONCE() invocations.
This data race was reported by KCSAN. Not appropriate for backporting
due to failure being unlikely and due to this being rcutorture.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/rcu_segcblist.c')
0 files changed, 0 insertions, 0 deletions