RCU_HEAD_INIT     432 fs/file.c      		.rcu		= RCU_HEAD_INIT,
RCU_HEAD_INIT      79 include/linux/init_task.h 	.rcu		= RCU_HEAD_INIT,				\
RCU_HEAD_INIT      62 include/linux/rcupdate.h #define RCU_HEAD(head) struct rcu_head head = RCU_HEAD_INIT