| commit | c372fd67d59f742b9bc14bb6a0dbec0fdc400dee | [log] [tgz] |
|---|---|---|
| author | Paul E. McKenney <paulmck@kernel.org> | Fri Jan 03 12:12:06 2020 -0800 |
| committer | Paul E. McKenney <paulmck@kernel.org> | Fri Jan 03 12:12:06 2020 -0800 |
| tree | 41b71a4c64bb73efa5b58221e69e16cb276769db | |
| parent | 99a92229a4e0c5246eb0fabb278c5e8e6b2a2834 [diff] |
rcu: Add READ_ONCE to rcu_node ->exp_seq_rq store The rcu_node structure's ->exp_seq_rq field is read locklessly, so this commit adds the WRITE_ONCE() to an update in order to provide proper documentation and READ_ONCE()/WRITE_ONCE() pairing. This data race was reported by KCSAN. Not appropriate for backporting due to failure being unlikely. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>