RCU_TYPE_REGULAR
linux_call_rcu(RCU_TYPE_REGULAR, ptr, func); \
linux_rcu_barrier(RCU_TYPE_REGULAR); \
linux_rcu_read_lock(RCU_TYPE_REGULAR); \
linux_rcu_read_unlock(RCU_TYPE_REGULAR);\
linux_rcu_read_lock_held(RCU_TYPE_REGULAR)
linux_synchronize_rcu(RCU_TYPE_REGULAR); \
linux_synchronize_rcu(RCU_TYPE_REGULAR); \
linux_synchronize_rcu(RCU_TYPE_REGULAR);
linux_call_rcu(RCU_TYPE_REGULAR, &rwork->rcu, rcu_work_func);
linux_rcu_barrier(RCU_TYPE_REGULAR);