From 2c42818e962e2858334bf45bfc56662b3752df34 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 26 May 2011 22:14:36 -0700 Subject: rcu: Abstract common code for RCU grace-period-wait primitives Pull the code that waits for an RCU grace period into a single function, which is then called by synchronize_rcu() and friends in the case of TREE_RCU and TREE_PREEMPT_RCU, and from rcu_barrier() and friends in the case of TINY_RCU and TINY_PREEMPT_RCU. Signed-off-by: Paul E. McKenney --- kernel/rcutiny.c | 28 ---------------------------- 1 file changed, 28 deletions(-) (limited to 'kernel/rcutiny.c') diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c index 7bbac7d0f5ab..f544e343256a 100644 --- a/kernel/rcutiny.c +++ b/kernel/rcutiny.c @@ -281,34 +281,6 @@ void call_rcu_bh(struct rcu_head *head, void (*func)(struct rcu_head *rcu)) } EXPORT_SYMBOL_GPL(call_rcu_bh); -void rcu_barrier_bh(void) -{ - struct rcu_synchronize rcu; - - init_rcu_head_on_stack(&rcu.head); - init_completion(&rcu.completion); - /* Will wake me after RCU finished. */ - call_rcu_bh(&rcu.head, wakeme_after_rcu); - /* Wait for it. */ - wait_for_completion(&rcu.completion); - destroy_rcu_head_on_stack(&rcu.head); -} -EXPORT_SYMBOL_GPL(rcu_barrier_bh); - -void rcu_barrier_sched(void) -{ - struct rcu_synchronize rcu; - - init_rcu_head_on_stack(&rcu.head); - init_completion(&rcu.completion); - /* Will wake me after RCU finished. */ - call_rcu_sched(&rcu.head, wakeme_after_rcu); - /* Wait for it. */ - wait_for_completion(&rcu.completion); - destroy_rcu_head_on_stack(&rcu.head); -} -EXPORT_SYMBOL_GPL(rcu_barrier_sched); - /* * Spawn the kthread that invokes RCU callbacks. */ -- cgit v1.2.3