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rcu: Remove redundant code from rcu_cleanup_after_idle()
The rcu_try_advance_all_cbs() function returns a bool saying whether or not there are callbacks ready to invoke, but rcu_cleanup_after_idle() rechecks this regardless. This commit therefore uses the value returned by rcu_try_advance_all_cbs() instead of making rcu_cleanup_after_idle() do this recheck. Reported-by: Tibor Billes <tbilles@gmx.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by: Tibor Billes <tbilles@gmx.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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@ -1768,17 +1768,11 @@ static void rcu_prepare_for_idle(int cpu)
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*/
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static void rcu_cleanup_after_idle(int cpu)
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{
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struct rcu_data *rdp;
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struct rcu_state *rsp;
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if (rcu_is_nocb_cpu(cpu))
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return;
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rcu_try_advance_all_cbs();
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for_each_rcu_flavor(rsp) {
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rdp = per_cpu_ptr(rsp->rda, cpu);
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if (cpu_has_callbacks_ready_to_invoke(rdp))
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invoke_rcu_core();
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}
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if (rcu_try_advance_all_cbs())
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invoke_rcu_core();
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}
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/*
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