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rcu: shrink rcutiny by making synchronize_rcu_bh() be inline

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Because synchronize_rcu_bh() is identical to synchronize_sched(),
make the former a static inline invoking the latter, saving the
overhead of an EXPORT_SYMBOL_GPL() and the duplicate code.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2010-03-30 15:46:01 -07:00
parent 32c141a0a1
commit da848c47bc
4 changed files with 15 additions and 10 deletions
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9
kernel/rcutiny.c
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@ -187,7 +187,8 @@ static void rcu_process_callbacks(struct softirq_action *unused)
*
* Cool, huh? (Due to Josh Triplett.)
*
* But we want to make this a static inline later.
* But we want to make this a static inline later. The cond_resched()
* currently makes this problematic.
*/
void synchronize_sched(void)
{
@ -195,12 +196,6 @@ void synchronize_sched(void)
}
EXPORT_SYMBOL_GPL(synchronize_sched);
void synchronize_rcu_bh(void)
{
synchronize_sched();
}
EXPORT_SYMBOL_GPL(synchronize_rcu_bh);
/*
* Helper function for call_rcu() and call_rcu_bh().
*/