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| author | Paul E. McKenney <paulmck@kernel.org> | 2020-01-03 16:27:00 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-02-20 16:03:31 -0800 |
| commit | f042a436c8dc9f9cfe8ed1ee5de372697269657d (patch) | |
| tree | f026309a51c6ff18e4e5f53a027f7977344dfca5 /scripts/gcc-plugins/cyc_complexity_plugin.c | |
| parent | 102c14d2f87976e8390d2cb892ccd14e3532e020 (diff) | |
rcutorture: Add READ_ONCE() to rcu_torture_count and rcu_torture_batch
The rcutorture rcu_torture_count and rcu_torture_batch per-CPU variables
are read locklessly, so this commit adds the READ_ONCE() to a load in
order to avoid various types of compiler vandalism^Woptimization.
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 'scripts/gcc-plugins/cyc_complexity_plugin.c')
0 files changed, 0 insertions, 0 deletions