void side_rcu_wait_grace_period(struct side_rcu_gp_state *gp_state) __attribute__((visibility("hidden")));
void side_rcu_gp_init(struct side_rcu_gp_state *rcu_gp) __attribute__((visibility("hidden")));
void side_rcu_wait_grace_period(struct side_rcu_gp_state *gp_state) __attribute__((visibility("hidden")));
void side_rcu_gp_init(struct side_rcu_gp_state *rcu_gp) __attribute__((visibility("hidden")));