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authorPaul E. McKenney <paulmck@kernel.org>2020-01-03 15:17:12 -0800
committerPaul E. McKenney <paulmck@kernel.org>2020-02-20 15:58:22 -0800
commit2906d2154cd6ad6e4452cc25315d3cea7bb7f2d7 (patch)
tree4cbf03a8df843b417949fd9fe4c3b7018f0fb9ef /include/clocksource
parent0937d045732b5dd5e5df1fb6355d5f4e01f3c4d7 (diff)
rcu: Add WRITE_ONCE() to rcu_state ->gp_req_activity
The rcu_state structure's ->gp_req_activity 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>
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