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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_INTERVAL_TREE_H
#define _LINUX_INTERVAL_TREE_H
#include <linux/rbtree.h>
struct interval_tree_node {
struct rb_node rb;
unsigned long start; /* Start of interval */
unsigned long last; /* Last location _in_ interval */
unsigned long __subtree_last;
};
extern void
interval_tree_insert(struct interval_tree_node *node,
struct rb_root_cached *root);
extern void
interval_tree_remove(struct interval_tree_node *node,
struct rb_root_cached *root);
extern struct interval_tree_node *
interval_tree_iter_first(struct rb_root_cached *root,
unsigned long start, unsigned long last);
extern struct interval_tree_node *
interval_tree_iter_next(struct interval_tree_node *node,
unsigned long start, unsigned long last);
#endif /* _LINUX_INTERVAL_TREE_H */
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