On Sun 2023-07-02 15:58:06, Sasha Levin wrote:
From: "Paul E. McKenney" paulmck@kernel.org
[ Upstream commit a24c1aab652ebacf9ea62470a166514174c96fe1 ]
The rcu_data structure's ->rcu_cpu_has_work field can be modified by any CPU attempting to wake up the rcuc kthread. Therefore, this commit marks accesses to this field from the rcu_cpu_kthread() function.
This data race was reported by KCSAN. Not appropriate for backporting due to failure being unlikely.
Please drop.
Best regards, Pavel