[mirror_ubuntu-bionic-kernel.git] / include / linux / interval_tree.h

/* 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 */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
fff3fd8a ML	2	#ifndef _LINUX_INTERVAL_TREE_H
	3	#define _LINUX_INTERVAL_TREE_H
	4
	5	#include <linux/rbtree.h>
	6
	7	struct 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
	14	extern void
f808c13f DB	15	interval_tree_insert(struct interval_tree_node *node,
f808c13f DB	16	struct rb_root_cached *root);
fff3fd8a ML	17
fff3fd8a ML	18	extern void
f808c13f DB	19	interval_tree_remove(struct interval_tree_node *node,
f808c13f DB	20	struct rb_root_cached *root);
fff3fd8a ML	21
fff3fd8a ML	22	extern struct interval_tree_node *
f808c13f	23	interval_tree_iter_first(struct rb_root_cached *root,
fff3fd8a ML	24	unsigned long start, unsigned long last);
	25
	26	extern struct interval_tree_node *
	27	interval_tree_iter_next(struct interval_tree_node *node,
	28	unsigned long start, unsigned long last);
	29
	30	#endif /* _LINUX_INTERVAL_TREE_H */