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/*-
* Copyright (c) 2000 Michael Smith
* Copyright (c) 2000 BSDi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Backwards compatibility support.
*/
/*
* Handle the new/old bio/buf changeover
*/
#if __FreeBSD_version < 500003 /* old buf style */
#include <sys/buf.h>
#define FREEBSD_4
#define bio buf
#define bioq_init(x) bufq_init(x)
#define bioq_insert_tail(x, y) bufq_insert_tail(x, y)
#define bioq_remove(x, y) bufq_remove(x, y)
#define bioq_first(x) bufq_first(x)
#define bio_queue_head buf_queue_head
#define bio_bcount b_bcount
#define bio_blkno b_blkno
#define bio_caller1 b_caller1
#define bio_data b_data
#define bio_dev b_dev
#define bio_driver1 b_driver1
#define bio_driver2 b_driver2
#define bio_error b_error
#define bio_flags b_flags
#define bio_pblkno b_pblkno
#define bio_resid b_resid
#define BIO_ERROR B_ERROR
#define devstat_end_transaction_bio(x, y) devstat_end_transaction_buf(x, y)
#define BIO_IS_READ(x) ((x)->b_flags & B_READ)
#else /* new bio style */
#include <sys/bio.h>
#define BIO_IS_READ(x) ((x)->bio_cmd == BIO_READ)
#endif
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