| commit | 0937d045732b5dd5e5df1fb6355d5f4e01f3c4d7 | [log] [tgz] |
|---|---|---|
| author | Paul E. McKenney <paulmck@kernel.org> | Fri Jan 03 14:53:31 2020 -0800 |
| committer | Paul E. McKenney <paulmck@kernel.org> | Thu Feb 20 15:58:22 2020 -0800 |
| tree | 679da8876a4e372ab67634dd2f3b1b675c7b6a8f | |
| parent | b0c18c87730a4de6da0303fa99aea43e814233f9 [diff] |
rcu: Add READ_ONCE() to rcu_node ->gp_seq The rcu_node structure's ->gp_seq field is read locklessly, so this commit adds the READ_ONCE() to several loads in order to avoid destructive compiler optimizations. This data race was reported by KCSAN. Not appropriate for backporting because this affects only tracing and warnings. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>