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| author |   Paul E. McKenney <paulmck@kernel.org> | 2020-01-03 12:12:06 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-02-20 15:58:22 -0800 |
| commit | b0c18c87730a4de6da0303fa99aea43e814233f9 (patch) | |
| tree | 31f1ab63c9331736ccd4b7aa54bfb2db389c94f4 /kernel/locking/rtmutex.c | |
| parent | rcu: Add WRITE_ONCE() to rcu_node ->qsmask update (diff) | |
| download | linux-dev-b0c18c87730a4de6da0303fa99aea43e814233f9.tar.xz linux-dev-b0c18c87730a4de6da0303fa99aea43e814233f9.zip | |
rcu: Add WRITE_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 a load 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>
Diffstat (limited to 'kernel/locking/rtmutex.c')
0 files changed, 0 insertions, 0 deletions