unsigned long rcu_onl_gp_seq; /* ->gp_seq at last online. */
short rcu_onl_gp_flags; /* ->gp_flags at last online. */
unsigned long last_fqs_resched; /* Time of last rcu_resched(). */
+ unsigned long last_sched_clock; /* Jiffies of last rcu_sched_clock_irq(). */
int cpu;
};