bio.h
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bio.h
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	/******************************************************************************
	*******************************************************************************
	**
	** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
	** Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
	**
	** This copyrighted material is made available to anyone wishing to use,
	** modify, copy, or redistribute it subject to the terms and conditions
	** of the GNU General Public License v.2.
	**
	*******************************************************************************
	******************************************************************************/

	#ifndef __BIO_H
	#define __BIO_H

	#include "osi_user.h"
	#include "fsck_incore.h"
	/* buf_write flags */
	#define BW_WAIT 1


	#define BH_DATA(bh) ((char *)(bh)->b_data)
	#define BH_BLKNO(bh) ((uint64)(bh)->b_blocknr)
	#define BH_SIZE(bh) ((uint32)(bh)->b_size)
	#define BH_STATE(bh) ((uint32)(bh)->b_state)

	int get_buf(struct fsck_sb sdp, uint64 blkno, osi_buf_t *bhp);
	void relse_buf(struct fsck_sb sdp, osi_buf_t bh);
	int read_buf(struct fsck_sb sdp, osi_buf_t bh, int flags);
	int write_buf(struct fsck_sb sdp, osi_buf_t bh, int flags);
	int get_and_read_buf(struct fsck_sb sdp, uint64 blkno, osi_buf_t *bhp, int flags);

	#endif /* __BIO_H */