| /* 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 */ |