LXR linux/include/linux/interval

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _LINUX_INTERVAL_TREE_H
   3#define _LINUX_INTERVAL_TREE_H
   4
   5#include <linux/rbtree.h>
   6
   7struct interval_tree_node {
   8        struct rb_node rb;
   9        unsigned long start;    /* Start of interval */
  10        unsigned long last;     /* Last location _in_ interval */
  11        unsigned long __subtree_last;
  12};
  13
  14extern void
  15interval_tree_insert(struct interval_tree_node *node,
  16                     struct rb_root_cached *root);
  17
  18extern void
  19interval_tree_remove(struct interval_tree_node *node,
  20                     struct rb_root_cached *root);
  21
  22extern struct interval_tree_node *
  23interval_tree_iter_first(struct rb_root_cached *root,
  24                         unsigned long start, unsigned long last);
  25
  26extern struct interval_tree_node *
  27interval_tree_iter_next(struct interval_tree_node *node,
  28                        unsigned long start, unsigned long last);
  29
  30#endif  /* _LINUX_INTERVAL_TREE_H */
  31