Commit 679d3f30 authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

rcu: Clean up flavor-related definitions and comments in tiny.c 



Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 6eb95cc4

kernel/rcu/tiny.c

+5 −5
Original line number Diff line number Diff line
@@ -117,9 +117,9 @@ static __latent_entropy void rcu_process_callbacks(struct softirq_action *unused 


/*

 * Wait for a grace period to elapse.  But it is illegal to invoke

 * synchronize_sched() from within an RCU read-side critical section.

 * Therefore, any legal call to synchronize_sched() is a quiescent

 * state, and so on a UP system, synchronize_sched() need do nothing.

 * synchronize_rcu() from within an RCU read-side critical section.

 * Therefore, any legal call to synchronize_rcu() is a quiescent

 * state, and so on a UP system, synchronize_rcu() need do nothing.

 * (But Lai Jiangshan points out the benefits of doing might_sleep()

 * to reduce latency.)

 *
@@ -130,12 +130,12 @@ void synchronize_rcu(void) 
	RCU_LOCKDEP_WARN(lock_is_held(&rcu_bh_lock_map) ||

			 lock_is_held(&rcu_lock_map) ||

			 lock_is_held(&rcu_sched_lock_map),

			 "Illegal synchronize_sched() in RCU read-side critical section");

			 "Illegal synchronize_rcu() in RCU read-side critical section");

}

EXPORT_SYMBOL_GPL(synchronize_rcu);



/*

 * Post an RCU callback to be invoked after the end of an RCU-sched grace

 * Post an RCU callback to be invoked after the end of an RCU grace

 * period.  But since we have but one CPU, that would be after any

 * quiescent state.

 */