# define list_for_each_entry_rcu cfs_list_for_each_entry
# define rcu_read_lock() cfs_spin_lock(&bucket->lock)
# define rcu_read_unlock() cfs_spin_unlock(&bucket->lock)
# define list_for_each_entry_rcu cfs_list_for_each_entry
# define rcu_read_lock() cfs_spin_lock(&bucket->lock)
# define rcu_read_unlock() cfs_spin_unlock(&bucket->lock)