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Commit ddeb7581 authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Paul E. McKenney
Browse files

rcu: code cleanups in TINY_RCU priority boosting. 



Extraneous semicolon, bad comment, and fold INIT_LIST_HEAD() into
list_del() to get list_del_init().

Signed-off-by: default avatarPaul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: default avatarJosh Triplett <josh@joshtriplett.org>
parent f0a07aea

kernel/rcutiny_plugin.h

+3 −4
Original line number Diff line number Diff line
@@ -339,7 +339,7 @@ static void rcu_initiate_expedited_boost(void) 
	raw_local_irq_restore(flags);

}



#define RCU_BOOST_DELAY_JIFFIES DIV_ROUND_UP(CONFIG_RCU_BOOST_DELAY * HZ, 1000);

#define RCU_BOOST_DELAY_JIFFIES DIV_ROUND_UP(CONFIG_RCU_BOOST_DELAY * HZ, 1000)



/*

 * Do priority-boost accounting for the start of a new grace period.
@@ -418,7 +418,7 @@ static void rcu_preempt_cpu_qs(void) 
	if (!rcu_preempt_gp_in_progress())

		return;

	/*

	 * Check up on boosting.  If there are no readers blocking the

	 * Check up on boosting.  If there are readers blocking the

	 * current grace period, leave.

	 */

	if (rcu_initiate_boost())
@@ -578,7 +578,7 @@ static void rcu_read_unlock_special(struct task_struct *t) 
		empty = !rcu_preempt_blocked_readers_cgp();

		empty_exp = rcu_preempt_ctrlblk.exp_tasks == NULL;

		np = rcu_next_node_entry(t);

		list_del(&t->rcu_node_entry);

		list_del_init(&t->rcu_node_entry);

		if (&t->rcu_node_entry == rcu_preempt_ctrlblk.gp_tasks)

			rcu_preempt_ctrlblk.gp_tasks = np;

		if (&t->rcu_node_entry == rcu_preempt_ctrlblk.exp_tasks)
@@ -587,7 +587,6 @@ static void rcu_read_unlock_special(struct task_struct *t) 
		if (&t->rcu_node_entry == rcu_preempt_ctrlblk.boost_tasks)

			rcu_preempt_ctrlblk.boost_tasks = np;

#endif /* #ifdef CONFIG_RCU_BOOST */

		INIT_LIST_HEAD(&t->rcu_node_entry);



		/*

		 * If this was the last task on the current list, and if