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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-05-10 20:12:17 -0400
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-05-11 19:10:47 -0400
commit72d5a9f7a9542f88397558c65bcfc3b115a65e34 (patch)
treee46d3ad1948de45b9641d1a8b88f88bfb3809007 /kernel/rcutree_plugin.h
parent4376030a54860dedab9d848dfa7cc700a6025c0b (diff)
rcu: remove all rcu head initializations, except on_stack initializations
Remove all rcu head inits. We don't care about the RCU head state before passing it to call_rcu() anyway. Only leave the "on_stack" variants so debugobjects can keep track of objects on stack. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutree_plugin.h')
-rw-r--r--kernel/rcutree_plugin.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index ac7d80fa895c..0e4f420245d9 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -557,11 +557,13 @@ void synchronize_rcu(void)
557 if (!rcu_scheduler_active) 557 if (!rcu_scheduler_active)
558 return; 558 return;
559 559
560 init_rcu_head_on_stack(&rcu.head);
560 init_completion(&rcu.completion); 561 init_completion(&rcu.completion);
561 /* Will wake me after RCU finished. */ 562 /* Will wake me after RCU finished. */
562 call_rcu(&rcu.head, wakeme_after_rcu); 563 call_rcu(&rcu.head, wakeme_after_rcu);
563 /* Wait for it. */ 564 /* Wait for it. */
564 wait_for_completion(&rcu.completion); 565 wait_for_completion(&rcu.completion);
566 destroy_rcu_head_on_stack(&rcu.head);
565} 567}
566EXPORT_SYMBOL_GPL(synchronize_rcu); 568EXPORT_SYMBOL_GPL(synchronize_rcu);
567 569