kfree_call_rcu    806 include/linux/rcupdate.h 		kfree_call_rcu(head, (rcu_callback_t)(unsigned long)(offset)); \
kfree_call_rcu     36 include/linux/rcutree.h void kfree_call_rcu(struct rcu_head *head, rcu_callback_t func);
kfree_call_rcu   2667 kernel/rcu/tree.c EXPORT_SYMBOL_GPL(kfree_call_rcu);