usnic_uiom_interval_tree.c | Explore in Territory

/*
 * Copyright (c) 2014, Cisco Systems, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

#include <linux/init.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/list_sort.h>

#include <linux/interval_tree_generic.h>
#include "usnic_uiom_interval_tree.h"

#define START(node) …
#define LAST(node) …

#define MAKE_NODE(node, start, end, ref_cnt, flags, err, err_out) …

#define MARK_FOR_ADD(node, list) …

#define MAKE_NODE_AND_APPEND(node, start, end, ref_cnt, flags, err,	\
				err_out, list) …

#define FLAGS_EQUAL(flags1, flags2, mask) …

static struct usnic_uiom_interval_node*
usnic_uiom_interval_node_alloc(long int start, long int last, int ref_cnt,
				int flags)
{ … }

static int interval_cmp(void *priv, const struct list_head *a,
			const struct list_head *b)
{ … }

static void
find_intervals_intersection_sorted(struct rb_root_cached *root,
				   unsigned long start, unsigned long last,
				   struct list_head *list)
{ … }

int usnic_uiom_get_intervals_diff(unsigned long start, unsigned long last,
					int flags, int flag_mask,
					struct rb_root_cached *root,
					struct list_head *diff_set)
{ … }

void usnic_uiom_put_interval_set(struct list_head *intervals)
{ … }

int usnic_uiom_insert_interval(struct rb_root_cached *root, unsigned long start,
				unsigned long last, int flags)
{ … }

void usnic_uiom_remove_interval(struct rb_root_cached *root,
				unsigned long start, unsigned long last,
				struct list_head *removed)
{ … }

INTERVAL_TREE_DEFINE(…)
linux/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.c
