powerpc: remove all rcu head initializations

Hello!

Would you guys like to carry this patch, or should I push it up -tip? If I don't hear otherwise from you, I will push it up -tip. The INIT_RCU_HEAD() primitive is going away in favor of debugobjects.

Thanx, Paul

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powerpc: remove all rcu head 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.

index ebc2f38..2c7e801 100644
@@ -92,7 +92,6 @@ static void pte_free_rcu_callback(struct rcu_head *head)
 
 static void pte_free_submit(struct pte_freelist_batch *batch)
 {
-	INIT_RCU_HEAD(&batch->rcu);
 	call_rcu(&batch->rcu, pte_free_rcu_callback);
 }