#include <linux/init.h>#include <linux/interval_tree.h>#include <linux/interval_tree_generic.h>#include <linux/module.h> #define START(node) ((node)->start)#define LAST(node)  ((node)->last) INTERVAL_TREE_DEFINE(struct interval_tree_node, rb,		     unsigned long, __subtree_last,		     START, LAST,, interval_tree) EXPORT_SYMBOL_GPL(interval_tree_insert);EXPORT_SYMBOL_GPL(interval_tree_remove);EXPORT_SYMBOL_GPL(interval_tree_iter_first);EXPORT_SYMBOL_GPL(interval_tree_iter_next);