RCU_FANOUT_2       49 include/linux/rcu_node_tree.h #define RCU_FANOUT_3	      (RCU_FANOUT_2 * RCU_FANOUT)
RCU_FANOUT_2       59 include/linux/rcu_node_tree.h #elif NR_CPUS <= RCU_FANOUT_2
RCU_FANOUT_2       70 include/linux/rcu_node_tree.h #  define NUM_RCU_LVL_1	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_2)
RCU_FANOUT_2       80 include/linux/rcu_node_tree.h #  define NUM_RCU_LVL_2	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_2)