rcu: Initialize at declaration time in rcu_exp_handler() (7487ea07) · Commits · 戴 / test

This commit moves the initialization of the CONFIG_PREEMPT=n version of the rcu_exp_handler() function's rdp and rnp local variables into their respective declarations to save a couple lines of code. Signed-off-by:

Paul E. McKenney <paulmck@kernel.org>

kernel/rcu/tree_exp.h

+2 −4

Original line number	Diff line number	Diff line
		@@ -732,11 +732,9 @@ static void rcu_exp_need_qs(void)
		/* Invoked on each online non-idle CPU for expedited quiescent state. */
		static void rcu_exp_handler(void *unused)
		{
		struct rcu_data *rdp;
		struct rcu_node *rnp;
		struct rcu_data *rdp = this_cpu_ptr(&rcu_data);
		struct rcu_node *rnp = rdp->mynode;

		rdp = this_cpu_ptr(&rcu_data);
		rnp = rdp->mynode;
		if (!(READ_ONCE(rnp->expmask) & rdp->grpmask) \|\|
		__this_cpu_read(rcu_data.cpu_no_qs.b.exp))
		return;

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