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rcu: Make rcutree_dying_cpu() use its "cpu" parameter
The CPU-hotplug functions take a "cpu" parameter, but rcutree_dying_cpu() ignores it in favor of this_cpu_ptr(). This works at the moment, but it would be better to be consistent. This might also work better given some possible future changes. This commit therefore uses per_cpu_ptr() to avoid ignoring the rcutree_dying_cpu() function's argument. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
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@ -2356,7 +2356,7 @@ rcu_check_quiescent_state(struct rcu_data *rdp)
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int rcutree_dying_cpu(unsigned int cpu)
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{
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bool blkd;
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struct rcu_data *rdp = this_cpu_ptr(&rcu_data);
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struct rcu_data *rdp = per_cpu_ptr(&rcu_data, cpu);
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struct rcu_node *rnp = rdp->mynode;
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if (!IS_ENABLED(CONFIG_HOTPLUG_CPU))
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