/* * 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. *
*/
int usnic_uiom_insert_interval(struct rb_root_cached *root, unsignedlong start, unsignedlong last, int flags)
{ struct usnic_uiom_interval_node *interval, *tmp; unsignedlong istart, ilast; int iref_cnt, iflags; unsignedlong lpivot = start; int err = 0;
LIST_HEAD(to_add);
LIST_HEAD(intersection_set);
find_intervals_intersection_sorted(root, start, last,
&intersection_set);
list_for_each_entry(interval, &intersection_set, link) { /* * Invariant - lpivot is the left edge of next interval to be * inserted
*/
istart = interval->start;
ilast = interval->last;
iref_cnt = interval->ref_cnt;
iflags = interval->flags;
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