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Update xfsprogs to latest kernel headers and functions
Merge of master-melb:xfs-cmds:32070a by kenmcd.

/*
 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <xfs/libxfs.h>
#include "type.h"
#include "faddr.h"
#include "fprint.h"
#include "field.h"
#include "bnobt.h"
#include "io.h"
#include "print.h"
#include "bit.h"
#include "init.h"

static int	bnobt_key_count(void *obj, int startoff);
static int	bnobt_key_offset(void *obj, int startoff, int idx);
static int	bnobt_ptr_count(void *obj, int startoff);
static int	bnobt_ptr_offset(void *obj, int startoff, int idx);
static int	bnobt_rec_count(void *obj, int startoff);
static int	bnobt_rec_offset(void *obj, int startoff, int idx);

const field_t	bnobt_hfld[] = {
	{ "", FLDT_BNOBT, OI(0), C1, 0, TYP_NONE },
	{ NULL }
};

#define	OFF(f)	bitize(offsetof(xfs_alloc_block_t, bb_ ## f))
const field_t	bnobt_flds[] = {
	{ "magic", FLDT_UINT32X, OI(OFF(magic)), C1, 0, TYP_NONE },
	{ "level", FLDT_UINT16D, OI(OFF(level)), C1, 0, TYP_NONE },
	{ "numrecs", FLDT_UINT16D, OI(OFF(numrecs)), C1, 0, TYP_NONE },
	{ "leftsib", FLDT_AGBLOCK, OI(OFF(leftsib)), C1, 0, TYP_BNOBT },
	{ "rightsib", FLDT_AGBLOCK, OI(OFF(rightsib)), C1, 0, TYP_BNOBT },
	{ "recs", FLDT_BNOBTREC, bnobt_rec_offset, bnobt_rec_count,
	  FLD_ARRAY|FLD_ABASE1|FLD_COUNT|FLD_OFFSET, TYP_NONE },
	{ "keys", FLDT_BNOBTKEY, bnobt_key_offset, bnobt_key_count,
	  FLD_ARRAY|FLD_ABASE1|FLD_COUNT|FLD_OFFSET, TYP_NONE },
	{ "ptrs", FLDT_BNOBTPTR, bnobt_ptr_offset, bnobt_ptr_count,
	  FLD_ARRAY|FLD_ABASE1|FLD_COUNT|FLD_OFFSET, TYP_BNOBT },
	{ NULL }
};

#define	KOFF(f)	bitize(offsetof(xfs_alloc_key_t, ar_ ## f))
const field_t	bnobt_key_flds[] = {
	{ "startblock", FLDT_AGBLOCK, OI(KOFF(startblock)), C1, 0, TYP_DATA },
	{ "blockcount", FLDT_EXTLEN, OI(KOFF(blockcount)), C1, 0, TYP_NONE },
	{ NULL }
};

#define	ROFF(f)	bitize(offsetof(xfs_alloc_rec_t, ar_ ## f))
const field_t	bnobt_rec_flds[] = {
	{ "startblock", FLDT_AGBLOCK, OI(ROFF(startblock)), C1, 0, TYP_DATA },
	{ "blockcount", FLDT_EXTLEN, OI(ROFF(blockcount)), C1, 0, TYP_NONE },
	{ NULL }
};

static int
bnobt_key_count(
	void			*obj,
	int			startoff)
{
	xfs_alloc_block_t	*block;

	ASSERT(startoff == 0);
	block = obj;
	if (be16_to_cpu(block->bb_level) == 0)
		return 0;
	return be16_to_cpu(block->bb_numrecs);
}

static int
bnobt_key_offset(
	void			*obj,
	int			startoff,
	int			idx)
{
	xfs_alloc_block_t	*block;
	xfs_alloc_key_t		*kp;

	ASSERT(startoff == 0);
	block = obj;
	ASSERT(be16_to_cpu(block->bb_level) > 0);
	kp = XFS_BTREE_KEY_ADDR(xfs_alloc, block, idx);
	return bitize((int)((char *)kp - (char *)block));
}

static int
bnobt_ptr_count(
	void			*obj,
	int			startoff)
{
	xfs_alloc_block_t	*block;

	ASSERT(startoff == 0);
	block = obj;
	if (be16_to_cpu(block->bb_level) == 0)
		return 0;
	return be16_to_cpu(block->bb_numrecs);
}

static int
bnobt_ptr_offset(
	void			*obj,
	int			startoff,
	int			idx)
{
	xfs_alloc_block_t	*block;
	xfs_alloc_ptr_t		*pp;

	ASSERT(startoff == 0);
	block = obj;
	ASSERT(be16_to_cpu(block->bb_level) > 0);
	pp = XFS_BTREE_PTR_ADDR(xfs_alloc, block, idx,
		XFS_BTREE_BLOCK_MAXRECS(mp->m_sb.sb_blocksize, xfs_alloc, 0));
	return bitize((int)((char *)pp - (char *)block));
}

static int
bnobt_rec_count(
	void			*obj,
	int			startoff)
{
	xfs_alloc_block_t	*block;

	ASSERT(startoff == 0);
	block = obj;
	if (be16_to_cpu(block->bb_level) > 0)
		return 0;
	return be16_to_cpu(block->bb_numrecs);
}

static int
bnobt_rec_offset(
	void			*obj,
	int			startoff,
	int			idx)
{
	xfs_alloc_block_t	*block;
	xfs_alloc_rec_t		*rp;

	ASSERT(startoff == 0);
	block = obj;
	ASSERT(be16_to_cpu(block->bb_level) == 0);
	rp = XFS_BTREE_REC_ADDR(xfs_alloc, block, idx);
	return bitize((int)((char *)rp - (char *)block));
}

int
bnobt_size(
	void	*obj,
	int	startoff,
	int	idx)
{
	return bitize(mp->m_sb.sb_blocksize);
}