include/linux/interval_tree.h

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