256 struct rcu_data {  struct
258 	unsigned long	completed;	/* Track rsp->completed gp number */
260 	unsigned long	gpnum;		/* Highest gp number that this CPU */
262 	unsigned long	rcu_qs_ctr_snap;/* Snapshot of rcu_qs_ctr to check */
264 	bool		passed_quiesce;	/* User-mode/idle loop etc. */
265 	bool		qs_pending;	/* Core waits for quiesc state. */
266 	bool		beenonline;	/* CPU online at least once. */
267 	bool		gpwrap;		/* Possible gpnum/completed wrap. */
268 	struct rcu_node *mynode;	/* This CPU's leaf of hierarchy */
269 	unsigned long grpmask;		/* Mask to apply to leaf qsmask. */
271 	unsigned long	ticks_this_gp;	/* The number of scheduling-clock */
300 	struct rcu_head *nxtlist;
301 	struct rcu_head **nxttail[RCU_NEXT_SIZE];
302 	unsigned long	nxtcompleted[RCU_NEXT_SIZE];
304 	long		qlen_lazy;	/* # of lazy queued callbacks */
305 	long		qlen;		/* # of queued callbacks, incl lazy */
306 	long		qlen_last_fqs_check;
308 	unsigned long	n_cbs_invoked;	/* count of RCU cbs invoked. */
309 	unsigned long	n_nocbs_invoked; /* count of no-CBs RCU cbs invoked. */
310 	unsigned long   n_cbs_orphaned; /* RCU cbs orphaned by dying CPU */
311 	unsigned long   n_cbs_adopted;  /* RCU cbs adopted from dying CPU */
312 	unsigned long	n_force_qs_snap;
314 	long		blimit;		/* Upper limit on a processed batch */
317 	struct rcu_dynticks *dynticks;	/* Shared per-CPU dynticks state. */
318 	int dynticks_snap;		/* Per-GP tracking for dynticks. */
321 	unsigned long dynticks_fqs;	/* Kicked due to dynticks idle. */
322 	unsigned long offline_fqs;	/* Kicked due to being offline. */
323 	unsigned long cond_resched_completed;
328 	unsigned long n_rcu_pending;	/* rcu_pending() calls since boot. */
329 	unsigned long n_rp_qs_pending;
330 	unsigned long n_rp_report_qs;
331 	unsigned long n_rp_cb_ready;
332 	unsigned long n_rp_cpu_needs_gp;
333 	unsigned long n_rp_gp_completed;
334 	unsigned long n_rp_gp_started;
335 	unsigned long n_rp_nocb_defer_wakeup;
336 	unsigned long n_rp_need_nothing;
361 	struct rcu_data *nocb_next_follower;  argument
365 	struct rcu_data *nocb_leader ____cacheline_internodealigned_in_smp;  argument
385 /* Values for nocb_defer_wakeup field in struct rcu_data. */  argument