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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 "bmapbt.h"
#include "print.h"
#include "bit.h"
#include "init.h"

static int	bmapbta_key_count(void *obj, int startoff);
static int	bmapbta_key_offset(void *obj, int startoff, int idx);
static int	bmapbta_ptr_count(void *obj, int startoff);
static int	bmapbta_ptr_offset(void *obj, int startoff, int idx);
static int	bmapbta_rec_count(void *obj, int startoff);
static int	bmapbta_rec_offset(void *obj, int startoff, int idx);
static int	bmapbtd_key_count(void *obj, int startoff);
static int	bmapbtd_key_offset(void *obj, int startoff, int idx);
static int	bmapbtd_ptr_count(void *obj, int startoff);
static int	bmapbtd_ptr_offset(void *obj, int startoff, int idx);
static int	bmapbtd_rec_count(void *obj, int startoff);
static int	bmapbtd_rec_offset(void *obj, int startoff, int idx);

const field_t	bmapbta_hfld[] = {
	{ "", FLDT_BMAPBTA, OI(0), C1, 0, TYP_NONE },
	{ NULL }
};
const field_t	bmapbtd_hfld[] = {
	{ "", FLDT_BMAPBTD, OI(0), C1, 0, TYP_NONE },
	{ NULL }
};

#define	OFF(f)	bitize(offsetof(xfs_bmbt_block_t, bb_ ## f))
const field_t	bmapbta_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_DFSBNO, OI(OFF(leftsib)), C1, 0, TYP_BMAPBTA },
	{ "rightsib", FLDT_DFSBNO, OI(OFF(rightsib)), C1, 0, TYP_BMAPBTA },
	{ "recs", FLDT_BMAPBTAREC, bmapbta_rec_offset, bmapbta_rec_count,
	  FLD_ARRAY|FLD_ABASE1|FLD_COUNT|FLD_OFFSET, TYP_NONE },
	{ "keys", FLDT_BMAPBTAKEY, bmapbta_key_offset, bmapbta_key_count,
	  FLD_ARRAY|FLD_ABASE1|FLD_COUNT|FLD_OFFSET, TYP_NONE },
	{ "ptrs", FLDT_BMAPBTAPTR, bmapbta_ptr_offset, bmapbta_ptr_count,
	  FLD_ARRAY|FLD_ABASE1|FLD_COUNT|FLD_OFFSET, TYP_BMAPBTA },
	{ NULL }
};
const field_t	bmapbtd_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_DFSBNO, OI(OFF(leftsib)), C1, 0, TYP_BMAPBTD },
	{ "rightsib", FLDT_DFSBNO, OI(OFF(rightsib)), C1, 0, TYP_BMAPBTD },
	{ "recs", FLDT_BMAPBTDREC, bmapbtd_rec_offset, bmapbtd_rec_count,
	  FLD_ARRAY|FLD_ABASE1|FLD_COUNT|FLD_OFFSET, TYP_NONE },
	{ "keys", FLDT_BMAPBTDKEY, bmapbtd_key_offset, bmapbtd_key_count,
	  FLD_ARRAY|FLD_ABASE1|FLD_COUNT|FLD_OFFSET, TYP_NONE },
	{ "ptrs", FLDT_BMAPBTDPTR, bmapbtd_ptr_offset, bmapbtd_ptr_count,
	  FLD_ARRAY|FLD_ABASE1|FLD_COUNT|FLD_OFFSET, TYP_BMAPBTD },
	{ NULL }
};

#define	KOFF(f)	bitize(offsetof(xfs_bmbt_key_t, br_ ## f))
const field_t	bmapbta_key_flds[] = {
	{ "startoff", FLDT_DFILOFFA, OI(KOFF(startoff)), C1, 0, TYP_ATTR },
	{ NULL }
};
const field_t	bmapbtd_key_flds[] = {
	{ "startoff", FLDT_DFILOFFD, OI(KOFF(startoff)), C1, 0, TYP_INODATA },
	{ NULL }
};

#ifndef XFS_NATIVE_HOST

#define BMBT_EXNTFLAG_BITOFF	0
#define BMBT_STARTOFF_BITOFF	(BMBT_EXNTFLAG_BITOFF + BMBT_EXNTFLAG_BITLEN)
#define BMBT_STARTBLOCK_BITOFF	(BMBT_STARTOFF_BITOFF + BMBT_STARTOFF_BITLEN)
#define BMBT_BLOCKCOUNT_BITOFF	\
	(BMBT_STARTBLOCK_BITOFF + BMBT_STARTBLOCK_BITLEN)

#else

#define BMBT_EXNTFLAG_BITOFF	63
#define BMBT_STARTOFF_BITOFF	(BMBT_EXNTFLAG_BITOFF - BMBT_STARTOFF_BITLEN)
#define BMBT_STARTBLOCK_BITOFF	85 /* 128 - 43 (other 9 is in first word) */
#define BMBT_BLOCKCOUNT_BITOFF	64 /* Start of second 64 bit container */

#endif /* XFS_NATIVE_HOST */

const field_t	bmapbta_rec_flds[] = {
	{ "startoff", FLDT_CFILEOFFA, OI(BMBT_STARTOFF_BITOFF), C1, 0,
	  TYP_ATTR },
	{ "startblock", FLDT_CFSBLOCK, OI(BMBT_STARTBLOCK_BITOFF), C1, 0,
	  TYP_ATTR },
	{ "blockcount", FLDT_CEXTLEN, OI(BMBT_BLOCKCOUNT_BITOFF), C1, 0,
	  TYP_NONE },
	{ "extentflag", FLDT_CEXTFLG, OI(BMBT_EXNTFLAG_BITOFF), C1, 0,
	  TYP_NONE },
	{ NULL }
};
const field_t	bmapbtd_rec_flds[] = {
	{ "startoff", FLDT_CFILEOFFD, OI(BMBT_STARTOFF_BITOFF), C1, 0,
	  TYP_INODATA },
	{ "startblock", FLDT_CFSBLOCK, OI(BMBT_STARTBLOCK_BITOFF), C1, 0,
	  TYP_INODATA },
	{ "blockcount", FLDT_CEXTLEN, OI(BMBT_BLOCKCOUNT_BITOFF), C1, 0,
	  TYP_NONE },
	{ "extentflag", FLDT_CEXTFLG, OI(BMBT_EXNTFLAG_BITOFF), C1, 0,
	  TYP_NONE },
	{ NULL }
};

static int
bmapbta_key_count(
	void			*obj,
	int			startoff)
{
	xfs_bmbt_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
bmapbta_key_offset(
	void			*obj,
	int			startoff,
	int			idx)
{
	xfs_bmbt_block_t	*block;
	xfs_bmbt_key_t		*kp;

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

static int
bmapbta_ptr_count(
	void			*obj,
	int			startoff)
{
	xfs_bmbt_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
bmapbta_ptr_offset(
	void			*obj,
	int			startoff,
	int			idx)
{
	xfs_bmbt_block_t	*block;
	xfs_bmbt_ptr_t		*pp;

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

static int
bmapbta_rec_count(
	void			*obj,
	int			startoff)
{
	xfs_bmbt_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
bmapbta_rec_offset(
	void			*obj,
	int			startoff,
	int			idx)
{
	xfs_bmbt_block_t	*block;
	xfs_bmbt_rec_t		*rp;

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

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

static int
bmapbtd_key_count(
	void			*obj,
	int			startoff)
{
	xfs_bmbt_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
bmapbtd_key_offset(
	void			*obj,
	int			startoff,
	int			idx)
{
	xfs_bmbt_block_t	*block;
	xfs_bmbt_key_t		*kp;

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

static int
bmapbtd_ptr_count(
	void			*obj,
	int			startoff)
{
	xfs_bmbt_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
bmapbtd_ptr_offset(
	void			*obj,
	int			startoff,
	int			idx)
{
	xfs_bmbt_block_t	*block;
	xfs_bmbt_ptr_t		*pp;

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

static int
bmapbtd_rec_count(
	void			*obj,
	int			startoff)
{
	xfs_bmbt_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
bmapbtd_rec_offset(
	void			*obj,
	int			startoff,
	int			idx)
{
	xfs_bmbt_block_t	*block;
	xfs_bmbt_rec_t		*rp;

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

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