move fs/partitions to block/

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 0 insertions, 1570 deletions

diff --git a/fs/partitions/ldm.c b/fs/partitions/ldm.c
deleted file mode 100644
index bd8ae788f689..000000000000
--- a/fs/partitions/ldm.c
+++ /dev/null
@@ -1,1570 +0,0 @@
-/**
- * ldm - Support for Windows Logical Disk Manager (Dynamic Disks)
- *
- * Copyright (C) 2001,2002 Richard Russon <ldm@flatcap.org>
- * Copyright (c) 2001-2007 Anton Altaparmakov
- * Copyright (C) 2001,2002 Jakob Kemi <jakob.kemi@telia.com>
- *
- * Documentation is available at http://www.linux-ntfs.org/doku.php?id=downloads 
- *
- * 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; either version 2 of the License, or (at your option) any later
- * version.
- *
- * This program is distributed in the hope that it will 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 (in the main directory of the source in the file COPYING); if
- * not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA  02111-1307  USA
- */
-
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <linux/stringify.h>
-#include <linux/kernel.h>
-#include "ldm.h"
-#include "check.h"
-#include "msdos.h"
-
-/**
- * ldm_debug/info/error/crit - Output an error message
- * @f:    A printf format string containing the message
- * @...:  Variables to substitute into @f
- *
- * ldm_debug() writes a DEBUG level message to the syslog but only if the
- * driver was compiled with debug enabled. Otherwise, the call turns into a NOP.
- */
-#ifndef CONFIG_LDM_DEBUG
-#define ldm_debug(...)	do {} while (0)
-#else
-#define ldm_debug(f, a...) _ldm_printk (KERN_DEBUG, __func__, f, ##a)
-#endif
-
-#define ldm_crit(f, a...)  _ldm_printk (KERN_CRIT,  __func__, f, ##a)
-#define ldm_error(f, a...) _ldm_printk (KERN_ERR,   __func__, f, ##a)
-#define ldm_info(f, a...)  _ldm_printk (KERN_INFO,  __func__, f, ##a)
-
-static __printf(3, 4)
-void _ldm_printk(const char *level, const char *function, const char *fmt, ...)
-{
-	struct va_format vaf;
-	va_list args;
-
-	va_start (args, fmt);
-
-	vaf.fmt = fmt;
-	vaf.va = &args;
-
-	printk("%s%s(): %pV\n", level, function, &vaf);
-
-	va_end(args);
-}
-
-/**
- * ldm_parse_hexbyte - Convert a ASCII hex number to a byte
- * @src:  Pointer to at least 2 characters to convert.
- *
- * Convert a two character ASCII hex string to a number.
- *
- * Return:  0-255  Success, the byte was parsed correctly
- *          -1     Error, an invalid character was supplied
- */
-static int ldm_parse_hexbyte (const u8 *src)
-{
-	unsigned int x;		/* For correct wrapping */
-	int h;
-
-	/* high part */
-	x = h = hex_to_bin(src[0]);
-	if (h < 0)
-		return -1;
-
-	/* low part */
-	h = hex_to_bin(src[1]);
-	if (h < 0)
-		return -1;
-
-	return (x << 4) + h;
-}
-
-/**
- * ldm_parse_guid - Convert GUID from ASCII to binary
- * @src:   36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
- * @dest:  Memory block to hold binary GUID (16 bytes)
- *
- * N.B. The GUID need not be NULL terminated.
- *
- * Return:  'true'   @dest contains binary GUID
- *          'false'  @dest contents are undefined
- */
-static bool ldm_parse_guid (const u8 *src, u8 *dest)
-{
-	static const int size[] = { 4, 2, 2, 2, 6 };
-	int i, j, v;
-
-	if (src[8]  != '-' || src[13] != '-' ||
-	    src[18] != '-' || src[23] != '-')
-		return false;
-
-	for (j = 0; j < 5; j++, src++)
-		for (i = 0; i < size[j]; i++, src+=2, *dest++ = v)
-			if ((v = ldm_parse_hexbyte (src)) < 0)
-				return false;
-
-	return true;
-}
-
-/**
- * ldm_parse_privhead - Read the LDM Database PRIVHEAD structure
- * @data:  Raw database PRIVHEAD structure loaded from the device
- * @ph:    In-memory privhead structure in which to return parsed information
- *
- * This parses the LDM database PRIVHEAD structure supplied in @data and
- * sets up the in-memory privhead structure @ph with the obtained information.
- *
- * Return:  'true'   @ph contains the PRIVHEAD data
- *          'false'  @ph contents are undefined
- */
-static bool ldm_parse_privhead(const u8 *data, struct privhead *ph)
-{
-	bool is_vista = false;
-
-	BUG_ON(!data || !ph);
-	if (MAGIC_PRIVHEAD != get_unaligned_be64(data)) {
-		ldm_error("Cannot find PRIVHEAD structure. LDM database is"
-			" corrupt. Aborting.");
-		return false;
-	}
-	ph->ver_major = get_unaligned_be16(data + 0x000C);
-	ph->ver_minor = get_unaligned_be16(data + 0x000E);
-	ph->logical_disk_start = get_unaligned_be64(data + 0x011B);
-	ph->logical_disk_size = get_unaligned_be64(data + 0x0123);
-	ph->config_start = get_unaligned_be64(data + 0x012B);
-	ph->config_size = get_unaligned_be64(data + 0x0133);
-	/* Version 2.11 is Win2k/XP and version 2.12 is Vista. */
-	if (ph->ver_major == 2 && ph->ver_minor == 12)
-		is_vista = true;
-	if (!is_vista && (ph->ver_major != 2 || ph->ver_minor != 11)) {
-		ldm_error("Expected PRIVHEAD version 2.11 or 2.12, got %d.%d."
-			" Aborting.", ph->ver_major, ph->ver_minor);
-		return false;
-	}
-	ldm_debug("PRIVHEAD version %d.%d (Windows %s).", ph->ver_major,
-			ph->ver_minor, is_vista ? "Vista" : "2000/XP");
-	if (ph->config_size != LDM_DB_SIZE) {	/* 1 MiB in sectors. */
-		/* Warn the user and continue, carefully. */
-		ldm_info("Database is normally %u bytes, it claims to "
-			"be %llu bytes.", LDM_DB_SIZE,
-			(unsigned long long)ph->config_size);
-	}
-	if ((ph->logical_disk_size == 0) || (ph->logical_disk_start +
-			ph->logical_disk_size > ph->config_start)) {
-		ldm_error("PRIVHEAD disk size doesn't match real disk size");
-		return false;
-	}
-	if (!ldm_parse_guid(data + 0x0030, ph->disk_id)) {
-		ldm_error("PRIVHEAD contains an invalid GUID.");
-		return false;
-	}
-	ldm_debug("Parsed PRIVHEAD successfully.");
-	return true;
-}
-
-/**
- * ldm_parse_tocblock - Read the LDM Database TOCBLOCK structure
- * @data:  Raw database TOCBLOCK structure loaded from the device
- * @toc:   In-memory toc structure in which to return parsed information
- *
- * This parses the LDM Database TOCBLOCK (table of contents) structure supplied
- * in @data and sets up the in-memory tocblock structure @toc with the obtained
- * information.
- *
- * N.B.  The *_start and *_size values returned in @toc are not range-checked.
- *
- * Return:  'true'   @toc contains the TOCBLOCK data
- *          'false'  @toc contents are undefined
- */
-static bool ldm_parse_tocblock (const u8 *data, struct tocblock *toc)
-{
-	BUG_ON (!data || !toc);
-
-	if (MAGIC_TOCBLOCK != get_unaligned_be64(data)) {
-		ldm_crit ("Cannot find TOCBLOCK, database may be corrupt.");
-		return false;
-	}
-	strncpy (toc->bitmap1_name, data + 0x24, sizeof (toc->bitmap1_name));
-	toc->bitmap1_name[sizeof (toc->bitmap1_name) - 1] = 0;
-	toc->bitmap1_start = get_unaligned_be64(data + 0x2E);
-	toc->bitmap1_size  = get_unaligned_be64(data + 0x36);
-
-	if (strncmp (toc->bitmap1_name, TOC_BITMAP1,
-			sizeof (toc->bitmap1_name)) != 0) {
-		ldm_crit ("TOCBLOCK's first bitmap is '%s', should be '%s'.",
-				TOC_BITMAP1, toc->bitmap1_name);
-		return false;
-	}
-	strncpy (toc->bitmap2_name, data + 0x46, sizeof (toc->bitmap2_name));
-	toc->bitmap2_name[sizeof (toc->bitmap2_name) - 1] = 0;
-	toc->bitmap2_start = get_unaligned_be64(data + 0x50);
-	toc->bitmap2_size  = get_unaligned_be64(data + 0x58);
-	if (strncmp (toc->bitmap2_name, TOC_BITMAP2,
-			sizeof (toc->bitmap2_name)) != 0) {
-		ldm_crit ("TOCBLOCK's second bitmap is '%s', should be '%s'.",
-				TOC_BITMAP2, toc->bitmap2_name);
-		return false;
-	}
-	ldm_debug ("Parsed TOCBLOCK successfully.");
-	return true;
-}
-
-/**
- * ldm_parse_vmdb - Read the LDM Database VMDB structure
- * @data:  Raw database VMDB structure loaded from the device
- * @vm:    In-memory vmdb structure in which to return parsed information
- *
- * This parses the LDM Database VMDB structure supplied in @data and sets up
- * the in-memory vmdb structure @vm with the obtained information.
- *
- * N.B.  The *_start, *_size and *_seq values will be range-checked later.
- *
- * Return:  'true'   @vm contains VMDB info
- *          'false'  @vm contents are undefined
- */
-static bool ldm_parse_vmdb (const u8 *data, struct vmdb *vm)
-{
-	BUG_ON (!data || !vm);
-
-	if (MAGIC_VMDB != get_unaligned_be32(data)) {
-		ldm_crit ("Cannot find the VMDB, database may be corrupt.");
-		return false;
-	}
-
-	vm->ver_major = get_unaligned_be16(data + 0x12);
-	vm->ver_minor = get_unaligned_be16(data + 0x14);
-	if ((vm->ver_major != 4) || (vm->ver_minor != 10)) {
-		ldm_error ("Expected VMDB version %d.%d, got %d.%d. "
-			"Aborting.", 4, 10, vm->ver_major, vm->ver_minor);
-		return false;
-	}
-
-	vm->vblk_size     = get_unaligned_be32(data + 0x08);
-	if (vm->vblk_size == 0) {
-		ldm_error ("Illegal VBLK size");
-		return false;
-	}
-
-	vm->vblk_offset   = get_unaligned_be32(data + 0x0C);
-	vm->last_vblk_seq = get_unaligned_be32(data + 0x04);
-
-	ldm_debug ("Parsed VMDB successfully.");
-	return true;
-}
-
-/**
- * ldm_compare_privheads - Compare two privhead objects
- * @ph1:  First privhead
- * @ph2:  Second privhead
- *
- * This compares the two privhead structures @ph1 and @ph2.
- *
- * Return:  'true'   Identical
- *          'false'  Different
- */
-static bool ldm_compare_privheads (const struct privhead *ph1,
-				   const struct privhead *ph2)
-{
-	BUG_ON (!ph1 || !ph2);
-
-	return ((ph1->ver_major          == ph2->ver_major)		&&
-		(ph1->ver_minor          == ph2->ver_minor)		&&
-		(ph1->logical_disk_start == ph2->logical_disk_start)	&&
-		(ph1->logical_disk_size  == ph2->logical_disk_size)	&&
-		(ph1->config_start       == ph2->config_start)		&&
-		(ph1->config_size        == ph2->config_size)		&&
-		!memcmp (ph1->disk_id, ph2->disk_id, GUID_SIZE));
-}
-
-/**
- * ldm_compare_tocblocks - Compare two tocblock objects
- * @toc1:  First toc
- * @toc2:  Second toc
- *
- * This compares the two tocblock structures @toc1 and @toc2.
- *
- * Return:  'true'   Identical
- *          'false'  Different
- */
-static bool ldm_compare_tocblocks (const struct tocblock *toc1,
-				   const struct tocblock *toc2)
-{
-	BUG_ON (!toc1 || !toc2);
-
-	return ((toc1->bitmap1_start == toc2->bitmap1_start)	&&
-		(toc1->bitmap1_size  == toc2->bitmap1_size)	&&
-		(toc1->bitmap2_start == toc2->bitmap2_start)	&&
-		(toc1->bitmap2_size  == toc2->bitmap2_size)	&&
-		!strncmp (toc1->bitmap1_name, toc2->bitmap1_name,
-			sizeof (toc1->bitmap1_name))		&&
-		!strncmp (toc1->bitmap2_name, toc2->bitmap2_name,
-			sizeof (toc1->bitmap2_name)));
-}
-
-/**
- * ldm_validate_privheads - Compare the primary privhead with its backups
- * @state: Partition check state including device holding the LDM Database
- * @ph1:   Memory struct to fill with ph contents
- *
- * Read and compare all three privheads from disk.
- *
- * The privheads on disk show the size and location of the main disk area and
- * the configuration area (the database).  The values are range-checked against
- * @hd, which contains the real size of the disk.
- *
- * Return:  'true'   Success
- *          'false'  Error
- */
-static bool ldm_validate_privheads(struct parsed_partitions *state,
-				   struct privhead *ph1)
-{
-	static const int off[3] = { OFF_PRIV1, OFF_PRIV2, OFF_PRIV3 };
-	struct privhead *ph[3] = { ph1 };
-	Sector sect;
-	u8 *data;
-	bool result = false;
-	long num_sects;
-	int i;
-
-	BUG_ON (!state || !ph1);
-
-	ph[1] = kmalloc (sizeof (*ph[1]), GFP_KERNEL);
-	ph[2] = kmalloc (sizeof (*ph[2]), GFP_KERNEL);
-	if (!ph[1] || !ph[2]) {
-		ldm_crit ("Out of memory.");
-		goto out;
-	}
-
-	/* off[1 & 2] are relative to ph[0]->config_start */
-	ph[0]->config_start = 0;
-
-	/* Read and parse privheads */
-	for (i = 0; i < 3; i++) {
-		data = read_part_sector(state, ph[0]->config_start + off[i],
-					&sect);
-		if (!data) {
-			ldm_crit ("Disk read failed.");
-			goto out;
-		}
-		result = ldm_parse_privhead (data, ph[i]);
-		put_dev_sector (sect);
-		if (!result) {
-			ldm_error ("Cannot find PRIVHEAD %d.", i+1); /* Log again */
-			if (i < 2)
-				goto out;	/* Already logged */
-			else
-				break;	/* FIXME ignore for now, 3rd PH can fail on odd-sized disks */
-		}
-	}
-
-	num_sects = state->bdev->bd_inode->i_size >> 9;
-
-	if ((ph[0]->config_start > num_sects) ||
-	   ((ph[0]->config_start + ph[0]->config_size) > num_sects)) {
-		ldm_crit ("Database extends beyond the end of the disk.");
-		goto out;
-	}
-
-	if ((ph[0]->logical_disk_start > ph[0]->config_start) ||
-	   ((ph[0]->logical_disk_start + ph[0]->logical_disk_size)
-		    > ph[0]->config_start)) {
-		ldm_crit ("Disk and database overlap.");
-		goto out;
-	}
-
-	if (!ldm_compare_privheads (ph[0], ph[1])) {
-		ldm_crit ("Primary and backup PRIVHEADs don't match.");
-		goto out;
-	}
-	/* FIXME ignore this for now
-	if (!ldm_compare_privheads (ph[0], ph[2])) {
-		ldm_crit ("Primary and backup PRIVHEADs don't match.");
-		goto out;
-	}*/
-	ldm_debug ("Validated PRIVHEADs successfully.");
-	result = true;
-out:
-	kfree (ph[1]);
-	kfree (ph[2]);
-	return result;
-}
-
-/**
- * ldm_validate_tocblocks - Validate the table of contents and its backups
- * @state: Partition check state including device holding the LDM Database
- * @base:  Offset, into @state->bdev, of the database
- * @ldb:   Cache of the database structures
- *
- * Find and compare the four tables of contents of the LDM Database stored on
- * @state->bdev and return the parsed information into @toc1.
- *
- * The offsets and sizes of the configs are range-checked against a privhead.
- *
- * Return:  'true'   @toc1 contains validated TOCBLOCK info
- *          'false'  @toc1 contents are undefined
- */
-static bool ldm_validate_tocblocks(struct parsed_partitions *state,
-				   unsigned long base, struct ldmdb *ldb)
-{
-	static const int off[4] = { OFF_TOCB1, OFF_TOCB2, OFF_TOCB3, OFF_TOCB4};
-	struct tocblock *tb[4];
-	struct privhead *ph;
-	Sector sect;
-	u8 *data;
-	int i, nr_tbs;
-	bool result = false;
-
-	BUG_ON(!state || !ldb);
-	ph = &ldb->ph;
-	tb[0] = &ldb->toc;
-	tb[1] = kmalloc(sizeof(*tb[1]) * 3, GFP_KERNEL);
-	if (!tb[1]) {
-		ldm_crit("Out of memory.");
-		goto err;
-	}
-	tb[2] = (struct tocblock*)((u8*)tb[1] + sizeof(*tb[1]));
-	tb[3] = (struct tocblock*)((u8*)tb[2] + sizeof(*tb[2]));
-	/*
-	 * Try to read and parse all four TOCBLOCKs.
-	 *
-	 * Windows Vista LDM v2.12 does not always have all four TOCBLOCKs so
-	 * skip any that fail as long as we get at least one valid TOCBLOCK.
-	 */
-	for (nr_tbs = i = 0; i < 4; i++) {
-		data = read_part_sector(state, base + off[i], &sect);
-		if (!data) {
-			ldm_error("Disk read failed for TOCBLOCK %d.", i);
-			continue;
-		}
-		if (ldm_parse_tocblock(data, tb[nr_tbs]))
-			nr_tbs++;
-		put_dev_sector(sect);
-	}
-	if (!nr_tbs) {
-		ldm_crit("Failed to find a valid TOCBLOCK.");
-		goto err;
-	}
-	/* Range check the TOCBLOCK against a privhead. */
-	if (((tb[0]->bitmap1_start + tb[0]->bitmap1_size) > ph->config_size) ||
-			((tb[0]->bitmap2_start + tb[0]->bitmap2_size) >
-			ph->config_size)) {
-		ldm_crit("The bitmaps are out of range.  Giving up.");
-		goto err;
-	}
-	/* Compare all loaded TOCBLOCKs. */
-	for (i = 1; i < nr_tbs; i++) {
-		if (!ldm_compare_tocblocks(tb[0], tb[i])) {
-			ldm_crit("TOCBLOCKs 0 and %d do not match.", i);
-			goto err;
-		}
-	}
-	ldm_debug("Validated %d TOCBLOCKs successfully.", nr_tbs);
-	result = true;
-err:
-	kfree(tb[1]);
-	return result;
-}
-
-/**
- * ldm_validate_vmdb - Read the VMDB and validate it
- * @state: Partition check state including device holding the LDM Database
- * @base:  Offset, into @bdev, of the database
- * @ldb:   Cache of the database structures
- *
- * Find the vmdb of the LDM Database stored on @bdev and return the parsed
- * information in @ldb.
- *
- * Return:  'true'   @ldb contains validated VBDB info
- *          'false'  @ldb contents are undefined
- */
-static bool ldm_validate_vmdb(struct parsed_partitions *state,
-			      unsigned long base, struct ldmdb *ldb)
-{
-	Sector sect;
-	u8 *data;
-	bool result = false;
-	struct vmdb *vm;
-	struct tocblock *toc;
-
-	BUG_ON (!state || !ldb);
-
-	vm  = &ldb->vm;
-	toc = &ldb->toc;
-
-	data = read_part_sector(state, base + OFF_VMDB, &sect);
-	if (!data) {
-		ldm_crit ("Disk read failed.");
-		return false;
-	}
-
-	if (!ldm_parse_vmdb (data, vm))
-		goto out;				/* Already logged */
-
-	/* Are there uncommitted transactions? */
-	if (get_unaligned_be16(data + 0x10) != 0x01) {
-		ldm_crit ("Database is not in a consistent state.  Aborting.");
-		goto out;
-	}
-
-	if (vm->vblk_offset != 512)
-		ldm_info ("VBLKs start at offset 0x%04x.", vm->vblk_offset);
-
-	/*
-	 * The last_vblkd_seq can be before the end of the vmdb, just make sure
-	 * it is not out of bounds.
-	 */
-	if ((vm->vblk_size * vm->last_vblk_seq) > (toc->bitmap1_size << 9)) {
-		ldm_crit ("VMDB exceeds allowed size specified by TOCBLOCK.  "
-				"Database is corrupt.  Aborting.");
-		goto out;
-	}
-
-	result = true;
-out:
-	put_dev_sector (sect);
-	return result;
-}
-
-
-/**
- * ldm_validate_partition_table - Determine whether bdev might be a dynamic disk
- * @state: Partition check state including device holding the LDM Database
- *
- * This function provides a weak test to decide whether the device is a dynamic
- * disk or not.  It looks for an MS-DOS-style partition table containing at
- * least one partition of type 0x42 (formerly SFS, now used by Windows for
- * dynamic disks).
- *
- * N.B.  The only possible error can come from the read_part_sector and that is
- *       only likely to happen if the underlying device is strange.  If that IS
- *       the case we should return zero to let someone else try.
- *
- * Return:  'true'   @state->bdev is a dynamic disk
- *          'false'  @state->bdev is not a dynamic disk, or an error occurred
- */
-static bool ldm_validate_partition_table(struct parsed_partitions *state)
-{
-	Sector sect;
-	u8 *data;
-	struct partition *p;
-	int i;
-	bool result = false;
-
-	BUG_ON(!state);
-
-	data = read_part_sector(state, 0, &sect);
-	if (!data) {
-		ldm_info ("Disk read failed.");
-		return false;
-	}
-
-	if (*(__le16*) (data + 0x01FE) != cpu_to_le16 (MSDOS_LABEL_MAGIC))
-		goto out;
-
-	p = (struct partition*)(data + 0x01BE);
-	for (i = 0; i < 4; i++, p++)
-		if (SYS_IND (p) == LDM_PARTITION) {
-			result = true;
-			break;
-		}
-
-	if (result)
-		ldm_debug ("Found W2K dynamic disk partition type.");
-
-out:
-	put_dev_sector (sect);
-	return result;
-}
-
-/**
- * ldm_get_disk_objid - Search a linked list of vblk's for a given Disk Id
- * @ldb:  Cache of the database structures
- *
- * The LDM Database contains a list of all partitions on all dynamic disks.
- * The primary PRIVHEAD, at the beginning of the physical disk, tells us
- * the GUID of this disk.  This function searches for the GUID in a linked
- * list of vblk's.
- *
- * Return:  Pointer, A matching vblk was found
- *          NULL,    No match, or an error
- */
-static struct vblk * ldm_get_disk_objid (const struct ldmdb *ldb)
-{
-	struct list_head *item;
-
-	BUG_ON (!ldb);
-
-	list_for_each (item, &ldb->v_disk) {
-		struct vblk *v = list_entry (item, struct vblk, list);
-		if (!memcmp (v->vblk.disk.disk_id, ldb->ph.disk_id, GUID_SIZE))
-			return v;
-	}
-
-	return NULL;
-}
-
-/**
- * ldm_create_data_partitions - Create data partitions for this device
- * @pp:   List of the partitions parsed so far
- * @ldb:  Cache of the database structures
- *
- * The database contains ALL the partitions for ALL disk groups, so we need to
- * filter out this specific disk. Using the disk's object id, we can find all
- * the partitions in the database that belong to this disk.
- *
- * Add each partition in our database, to the parsed_partitions structure.
- *
- * N.B.  This function creates the partitions in the order it finds partition
- *       objects in the linked list.
- *
- * Return:  'true'   Partition created
- *          'false'  Error, probably a range checking problem
- */
-static bool ldm_create_data_partitions (struct parsed_partitions *pp,
-					const struct ldmdb *ldb)
-{
-	struct list_head *item;
-	struct vblk *vb;
-	struct vblk *disk;
-	struct vblk_part *part;
-	int part_num = 1;
-
-	BUG_ON (!pp || !ldb);
-
-	disk = ldm_get_disk_objid (ldb);
-	if (!disk) {
-		ldm_crit ("Can't find the ID of this disk in the database.");
-		return false;
-	}
-
-	strlcat(pp->pp_buf, " [LDM]", PAGE_SIZE);
-
-	/* Create the data partitions */
-	list_for_each (item, &ldb->v_part) {
-		vb = list_entry (item, struct vblk, list);
-		part = &vb->vblk.part;
-
-		if (part->disk_id != disk->obj_id)
-			continue;
-
-		put_partition (pp, part_num, ldb->ph.logical_disk_start +
-				part->start, part->size);
-		part_num++;
-	}
-
-	strlcat(pp->pp_buf, "\n", PAGE_SIZE);
-	return true;
-}
-
-
-/**
- * ldm_relative - Calculate the next relative offset
- * @buffer:  Block of data being worked on
- * @buflen:  Size of the block of data
- * @base:    Size of the previous fixed width fields
- * @offset:  Cumulative size of the previous variable-width fields
- *
- * Because many of the VBLK fields are variable-width, it's necessary
- * to calculate each offset based on the previous one and the length
- * of the field it pointed to.
- *
- * Return:  -1 Error, the calculated offset exceeded the size of the buffer
- *           n OK, a range-checked offset into buffer
- */
-static int ldm_relative(const u8 *buffer, int buflen, int base, int offset)
-{
-
-	base += offset;
-	if (!buffer || offset < 0 || base > buflen) {
-		if (!buffer)
-			ldm_error("!buffer");
-		if (offset < 0)
-			ldm_error("offset (%d) < 0", offset);
-		if (base > buflen)
-			ldm_error("base (%d) > buflen (%d)", base, buflen);
-		return -1;
-	}
-	if (base + buffer[base] >= buflen) {
-		ldm_error("base (%d) + buffer[base] (%d) >= buflen (%d)", base,
-				buffer[base], buflen);
-		return -1;
-	}
-	return buffer[base] + offset + 1;
-}
-
-/**
- * ldm_get_vnum - Convert a variable-width, big endian number, into cpu order
- * @block:  Pointer to the variable-width number to convert
- *
- * Large numbers in the LDM Database are often stored in a packed format.  Each
- * number is prefixed by a one byte width marker.  All numbers in the database
- * are stored in big-endian byte order.  This function reads one of these
- * numbers and returns the result
- *
- * N.B.  This function DOES NOT perform any range checking, though the most
- *       it will read is eight bytes.
- *
- * Return:  n A number
- *          0 Zero, or an error occurred
- */
-static u64 ldm_get_vnum (const u8 *block)
-{
-	u64 tmp = 0;
-	u8 length;
-
-	BUG_ON (!block);
-
-	length = *block++;
-
-	if (length && length <= 8)
-		while (length--)
-			tmp = (tmp << 8) | *block++;
-	else
-		ldm_error ("Illegal length %d.", length);
-
-	return tmp;
-}
-
-/**
- * ldm_get_vstr - Read a length-prefixed string into a buffer
- * @block:   Pointer to the length marker
- * @buffer:  Location to copy string to
- * @buflen:  Size of the output buffer
- *
- * Many of the strings in the LDM Database are not NULL terminated.  Instead
- * they are prefixed by a one byte length marker.  This function copies one of
- * these strings into a buffer.
- *
- * N.B.  This function DOES NOT perform any range checking on the input.
- *       If the buffer is too small, the output will be truncated.
- *
- * Return:  0, Error and @buffer contents are undefined
- *          n, String length in characters (excluding NULL)
- *          buflen-1, String was truncated.
- */
-static int ldm_get_vstr (const u8 *block, u8 *buffer, int buflen)
-{
-	int length;
-
-	BUG_ON (!block || !buffer);
-
-	length = block[0];
-	if (length >= buflen) {
-		ldm_error ("Truncating string %d -> %d.", length, buflen);
-		length = buflen - 1;
-	}
-	memcpy (buffer, block + 1, length);
-	buffer[length] = 0;
-	return length;
-}
-
-
-/**
- * ldm_parse_cmp3 - Read a raw VBLK Component object into a vblk structure
- * @buffer:  Block of data being worked on
- * @buflen:  Size of the block of data
- * @vb:      In-memory vblk in which to return information
- *
- * Read a raw VBLK Component object (version 3) into a vblk structure.
- *
- * Return:  'true'   @vb contains a Component VBLK
- *          'false'  @vb contents are not defined
- */
-static bool ldm_parse_cmp3 (const u8 *buffer, int buflen, struct vblk *vb)
-{
-	int r_objid, r_name, r_vstate, r_child, r_parent, r_stripe, r_cols, len;
-	struct vblk_comp *comp;
-
-	BUG_ON (!buffer || !vb);
-
-	r_objid  = ldm_relative (buffer, buflen, 0x18, 0);
-	r_name   = ldm_relative (buffer, buflen, 0x18, r_objid);
-	r_vstate = ldm_relative (buffer, buflen, 0x18, r_name);
-	r_child  = ldm_relative (buffer, buflen, 0x1D, r_vstate);
-	r_parent = ldm_relative (buffer, buflen, 0x2D, r_child);
-
-	if (buffer[0x12] & VBLK_FLAG_COMP_STRIPE) {
-		r_stripe = ldm_relative (buffer, buflen, 0x2E, r_parent);
-		r_cols   = ldm_relative (buffer, buflen, 0x2E, r_stripe);
-		len = r_cols;
-	} else {
-		r_stripe = 0;
-		r_cols   = 0;
-		len = r_parent;
-	}
-	if (len < 0)
-		return false;
-
-	len += VBLK_SIZE_CMP3;
-	if (len != get_unaligned_be32(buffer + 0x14))
-		return false;
-
-	comp = &vb->vblk.comp;
-	ldm_get_vstr (buffer + 0x18 + r_name, comp->state,
-		sizeof (comp->state));
-	comp->type      = buffer[0x18 + r_vstate];
-	comp->children  = ldm_get_vnum (buffer + 0x1D + r_vstate);
-	comp->parent_id = ldm_get_vnum (buffer + 0x2D + r_child);
-	comp->chunksize = r_stripe ? ldm_get_vnum (buffer+r_parent+0x2E) : 0;
-
-	return true;
-}
-
-/**
- * ldm_parse_dgr3 - Read a raw VBLK Disk Group object into a vblk structure
- * @buffer:  Block of data being worked on
- * @buflen:  Size of the block of data
- * @vb:      In-memory vblk in which to return information
- *
- * Read a raw VBLK Disk Group object (version 3) into a vblk structure.
- *
- * Return:  'true'   @vb contains a Disk Group VBLK
- *          'false'  @vb contents are not defined
- */
-static int ldm_parse_dgr3 (const u8 *buffer, int buflen, struct vblk *vb)
-{
-	int r_objid, r_name, r_diskid, r_id1, r_id2, len;
-	struct vblk_dgrp *dgrp;
-
-	BUG_ON (!buffer || !vb);
-
-	r_objid  = ldm_relative (buffer, buflen, 0x18, 0);
-	r_name   = ldm_relative (buffer, buflen, 0x18, r_objid);
-	r_diskid = ldm_relative (buffer, buflen, 0x18, r_name);
-
-	if (buffer[0x12] & VBLK_FLAG_DGR3_IDS) {
-		r_id1 = ldm_relative (buffer, buflen, 0x24, r_diskid);
-		r_id2 = ldm_relative (buffer, buflen, 0x24, r_id1);
-		len = r_id2;
-	} else {
-		r_id1 = 0;
-		r_id2 = 0;
-		len = r_diskid;
-	}
-	if (len < 0)
-		return false;
-
-	len += VBLK_SIZE_DGR3;
-	if (len != get_unaligned_be32(buffer + 0x14))
-		return false;
-
-	dgrp = &vb->vblk.dgrp;
-	ldm_get_vstr (buffer + 0x18 + r_name, dgrp->disk_id,
-		sizeof (dgrp->disk_id));
-	return true;
-}
-
-/**
- * ldm_parse_dgr4 - Read a raw VBLK Disk Group object into a vblk structure
- * @buffer:  Block of data being worked on
- * @buflen:  Size of the block of data
- * @vb:      In-memory vblk in which to return information
- *
- * Read a raw VBLK Disk Group object (version 4) into a vblk structure.
- *
- * Return:  'true'   @vb contains a Disk Group VBLK
- *          'false'  @vb contents are not defined
- */
-static bool ldm_parse_dgr4 (const u8 *buffer, int buflen, struct vblk *vb)
-{
-	char buf[64];
-	int r_objid, r_name, r_id1, r_id2, len;
-	struct vblk_dgrp *dgrp;
-
-	BUG_ON (!buffer || !vb);
-
-	r_objid  = ldm_relative (buffer, buflen, 0x18, 0);
-	r_name   = ldm_relative (buffer, buflen, 0x18, r_objid);
-
-	if (buffer[0x12] & VBLK_FLAG_DGR4_IDS) {
-		r_id1 = ldm_relative (buffer, buflen, 0x44, r_name);
-		r_id2 = ldm_relative (buffer, buflen, 0x44, r_id1);
-		len = r_id2;
-	} else {
-		r_id1 = 0;
-		r_id2 = 0;
-		len = r_name;
-	}
-	if (len < 0)
-		return false;
-
-	len += VBLK_SIZE_DGR4;
-	if (len != get_unaligned_be32(buffer + 0x14))
-		return false;
-
-	dgrp = &vb->vblk.dgrp;
-
-	ldm_get_vstr (buffer + 0x18 + r_objid, buf, sizeof (buf));
-	return true;
-}
-
-/**
- * ldm_parse_dsk3 - Read a raw VBLK Disk object into a vblk structure
- * @buffer:  Block of data being worked on
- * @buflen:  Size of the block of data
- * @vb:      In-memory vblk in which to return information
- *
- * Read a raw VBLK Disk object (version 3) into a vblk structure.
- *
- * Return:  'true'   @vb contains a Disk VBLK
- *          'false'  @vb contents are not defined
- */
-static bool ldm_parse_dsk3 (const u8 *buffer, int buflen, struct vblk *vb)
-{
-	int r_objid, r_name, r_diskid, r_altname, len;
-	struct vblk_disk *disk;
-
-	BUG_ON (!buffer || !vb);
-
-	r_objid   = ldm_relative (buffer, buflen, 0x18, 0);
-	r_name    = ldm_relative (buffer, buflen, 0x18, r_objid);
-	r_diskid  = ldm_relative (buffer, buflen, 0x18, r_name);
-	r_altname = ldm_relative (buffer, buflen, 0x18, r_diskid);
-	len = r_altname;
-	if (len < 0)
-		return false;
-
-	len += VBLK_SIZE_DSK3;
-	if (len != get_unaligned_be32(buffer + 0x14))
-		return false;
-
-	disk = &vb->vblk.disk;
-	ldm_get_vstr (buffer + 0x18 + r_diskid, disk->alt_name,
-		sizeof (disk->alt_name));
-	if (!ldm_parse_guid (buffer + 0x19 + r_name, disk->disk_id))
-		return false;
-
-	return true;
-}
-
-/**
- * ldm_parse_dsk4 - Read a raw VBLK Disk object into a vblk structure
- * @buffer:  Block of data being worked on
- * @buflen:  Size of the block of data
- * @vb:      In-memory vblk in which to return information
- *
- * Read a raw VBLK Disk object (version 4) into a vblk structure.
- *
- * Return:  'true'   @vb contains a Disk VBLK
- *          'false'  @vb contents are not defined
- */
-static bool ldm_parse_dsk4 (const u8 *buffer, int buflen, struct vblk *vb)
-{
-	int r_objid, r_name, len;
-	struct vblk_disk *disk;
-
-	BUG_ON (!buffer || !vb);
-
-	r_objid = ldm_relative (buffer, buflen, 0x18, 0);
-	r_name  = ldm_relative (buffer, buflen, 0x18, r_objid);
-	len     = r_name;
-	if (len < 0)
-		return false;
-
-	len += VBLK_SIZE_DSK4;
-	if (len != get_unaligned_be32(buffer + 0x14))
-		return false;
-
-	disk = &vb->vblk.disk;
-	memcpy (disk->disk_id, buffer + 0x18 + r_name, GUID_SIZE);
-	return true;
-}
-
-/**
- * ldm_parse_prt3 - Read a raw VBLK Partition object into a vblk structure
- * @buffer:  Block of data being worked on
- * @buflen:  Size of the block of data
- * @vb:      In-memory vblk in which to return information
- *
- * Read a raw VBLK Partition object (version 3) into a vblk structure.
- *
- * Return:  'true'   @vb contains a Partition VBLK
- *          'false'  @vb contents are not defined
- */
-static bool ldm_parse_prt3(const u8 *buffer, int buflen, struct vblk *vb)
-{
-	int r_objid, r_name, r_size, r_parent, r_diskid, r_index, len;
-	struct vblk_part *part;
-
-	BUG_ON(!buffer || !vb);
-	r_objid = ldm_relative(buffer, buflen, 0x18, 0);
-	if (r_objid < 0) {
-		ldm_error("r_objid %d < 0", r_objid);
-		return false;
-	}
-	r_name = ldm_relative(buffer, buflen, 0x18, r_objid);
-	if (r_name < 0) {
-		ldm_error("r_name %d < 0", r_name);
-		return false;
-	}
-	r_size = ldm_relative(buffer, buflen, 0x34, r_name);
-	if (r_size < 0) {
-		ldm_error("r_size %d < 0", r_size);
-		return false;
-	}
-	r_parent = ldm_relative(buffer, buflen, 0x34, r_size);
-	if (r_parent < 0) {
-		ldm_error("r_parent %d < 0", r_parent);
-		return false;
-	}
-	r_diskid = ldm_relative(buffer, buflen, 0x34, r_parent);
-	if (r_diskid < 0) {
-		ldm_error("r_diskid %d < 0", r_diskid);
-		return false;
-	}
-	if (buffer[0x12] & VBLK_FLAG_PART_INDEX) {
-		r_index = ldm_relative(buffer, buflen, 0x34, r_diskid);
-		if (r_index < 0) {
-			ldm_error("r_index %d < 0", r_index);
-			return false;
-		}
-		len = r_index;
-	} else {
-		r_index = 0;
-		len = r_diskid;
-	}
-	if (len < 0) {
-		ldm_error("len %d < 0", len);
-		return false;
-	}
-	len += VBLK_SIZE_PRT3;
-	if (len > get_unaligned_be32(buffer + 0x14)) {
-		ldm_error("len %d > BE32(buffer + 0x14) %d", len,
-				get_unaligned_be32(buffer + 0x14));
-		return false;
-	}
-	part = &vb->vblk.part;
-	part->start = get_unaligned_be64(buffer + 0x24 + r_name);
-	part->volume_offset = get_unaligned_be64(buffer + 0x2C + r_name);
-	part->size = ldm_get_vnum(buffer + 0x34 + r_name);
-	part->parent_id = ldm_get_vnum(buffer + 0x34 + r_size);
-	part->disk_id = ldm_get_vnum(buffer + 0x34 + r_parent);
-	if (vb->flags & VBLK_FLAG_PART_INDEX)
-		part->partnum = buffer[0x35 + r_diskid];
-	else
-		part->partnum = 0;
-	return true;
-}
-
-/**
- * ldm_parse_vol5 - Read a raw VBLK Volume object into a vblk structure
- * @buffer:  Block of data being worked on
- * @buflen:  Size of the block of data
- * @vb:      In-memory vblk in which to return information
- *
- * Read a raw VBLK Volume object (version 5) into a vblk structure.
- *
- * Return:  'true'   @vb contains a Volume VBLK
- *          'false'  @vb contents are not defined
- */
-static bool ldm_parse_vol5(const u8 *buffer, int buflen, struct vblk *vb)
-{
-	int r_objid, r_name, r_vtype, r_disable_drive_letter, r_child, r_size;
-	int r_id1, r_id2, r_size2, r_drive, len;
-	struct vblk_volu *volu;
-
-	BUG_ON(!buffer || !vb);
-	r_objid = ldm_relative(buffer, buflen, 0x18, 0);
-	if (r_objid < 0) {
-		ldm_error("r_objid %d < 0", r_objid);
-		return false;
-	}
-	r_name = ldm_relative(buffer, buflen, 0x18, r_objid);
-	if (r_name < 0) {
-		ldm_error("r_name %d < 0", r_name);
-		return false;
-	}
-	r_vtype = ldm_relative(buffer, buflen, 0x18, r_name);
-	if (r_vtype < 0) {
-		ldm_error("r_vtype %d < 0", r_vtype);
-		return false;
-	}
-	r_disable_drive_letter = ldm_relative(buffer, buflen, 0x18, r_vtype);
-	if (r_disable_drive_letter < 0) {
-		ldm_error("r_disable_drive_letter %d < 0",
-				r_disable_drive_letter);
-		return false;
-	}
-	r_child = ldm_relative(buffer, buflen, 0x2D, r_disable_drive_letter);
-	if (r_child < 0) {
-		ldm_error("r_child %d < 0", r_child);
-		return false;
-	}
-	r_size = ldm_relative(buffer, buflen, 0x3D, r_child);
-	if (r_size < 0) {
-		ldm_error("r_size %d < 0", r_size);
-		return false;
-	}
-	if (buffer[0x12] & VBLK_FLAG_VOLU_ID1) {
-		r_id1 = ldm_relative(buffer, buflen, 0x52, r_size);
-		if (r_id1 < 0) {
-			ldm_error("r_id1 %d < 0", r_id1);
-			return false;
-		}
-	} else
-		r_id1 = r_size;
-	if (buffer[0x12] & VBLK_FLAG_VOLU_ID2) {
-		r_id2 = ldm_relative(buffer, buflen, 0x52, r_id1);
-		if (r_id2 < 0) {
-			ldm_error("r_id2 %d < 0", r_id2);
-			return false;
-		}
-	} else
-		r_id2 = r_id1;
-	if (buffer[0x12] & VBLK_FLAG_VOLU_SIZE) {
-		r_size2 = ldm_relative(buffer, buflen, 0x52, r_id2);
-		if (r_size2 < 0) {
-			ldm_error("r_size2 %d < 0", r_size2);
-			return false;
-		}
-	} else
-		r_size2 = r_id2;
-	if (buffer[0x12] & VBLK_FLAG_VOLU_DRIVE) {
-		r_drive = ldm_relative(buffer, buflen, 0x52, r_size2);
-		if (r_drive < 0) {
-			ldm_error("r_drive %d < 0", r_drive);
-			return false;
-		}
-	} else
-		r_drive = r_size2;
-	len = r_drive;
-	if (len < 0) {
-		ldm_error("len %d < 0", len);
-		return false;
-	}
-	len += VBLK_SIZE_VOL5;
-	if (len > get_unaligned_be32(buffer + 0x14)) {
-		ldm_error("len %d > BE32(buffer + 0x14) %d", len,
-				get_unaligned_be32(buffer + 0x14));
-		return false;
-	}
-	volu = &vb->vblk.volu;
-	ldm_get_vstr(buffer + 0x18 + r_name, volu->volume_type,
-			sizeof(volu->volume_type));
-	memcpy(volu->volume_state, buffer + 0x18 + r_disable_drive_letter,
-			sizeof(volu->volume_state));
-	volu->size = ldm_get_vnum(buffer + 0x3D + r_child);
-	volu->partition_type = buffer[0x41 + r_size];
-	memcpy(volu->guid, buffer + 0x42 + r_size, sizeof(volu->guid));
-	if (buffer[0x12] & VBLK_FLAG_VOLU_DRIVE) {
-		ldm_get_vstr(buffer + 0x52 + r_size, volu->drive_hint,
-				sizeof(volu->drive_hint));
-	}
-	return true;
-}
-
-/**
- * ldm_parse_vblk - Read a raw VBLK object into a vblk structure
- * @buf:  Block of data being worked on
- * @len:  Size of the block of data
- * @vb:   In-memory vblk in which to return information
- *
- * Read a raw VBLK object into a vblk structure.  This function just reads the
- * information common to all VBLK types, then delegates the rest of the work to
- * helper functions: ldm_parse_*.
- *
- * Return:  'true'   @vb contains a VBLK
- *          'false'  @vb contents are not defined
- */
-static bool ldm_parse_vblk (const u8 *buf, int len, struct vblk *vb)
-{
-	bool result = false;
-	int r_objid;
-
-	BUG_ON (!buf || !vb);
-
-	r_objid = ldm_relative (buf, len, 0x18, 0);
-	if (r_objid < 0) {
-		ldm_error ("VBLK header is corrupt.");
-		return false;
-	}
-
-	vb->flags  = buf[0x12];
-	vb->type   = buf[0x13];
-	vb->obj_id = ldm_get_vnum (buf + 0x18);
-	ldm_get_vstr (buf+0x18+r_objid, vb->name, sizeof (vb->name));
-
-	switch (vb->type) {
-		case VBLK_CMP3:  result = ldm_parse_cmp3 (buf, len, vb); break;
-		case VBLK_DSK3:  result = ldm_parse_dsk3 (buf, len, vb); break;
-		case VBLK_DSK4:  result = ldm_parse_dsk4 (buf, len, vb); break;
-		case VBLK_DGR3:  result = ldm_parse_dgr3 (buf, len, vb); break;
-		case VBLK_DGR4:  result = ldm_parse_dgr4 (buf, len, vb); break;
-		case VBLK_PRT3:  result = ldm_parse_prt3 (buf, len, vb); break;
-		case VBLK_VOL5:  result = ldm_parse_vol5 (buf, len, vb); break;
-	}
-
-	if (result)
-		ldm_debug ("Parsed VBLK 0x%llx (type: 0x%02x) ok.",
-			 (unsigned long long) vb->obj_id, vb->type);
-	else
-		ldm_error ("Failed to parse VBLK 0x%llx (type: 0x%02x).",
-			(unsigned long long) vb->obj_id, vb->type);
-
-	return result;
-}
-
-
-/**
- * ldm_ldmdb_add - Adds a raw VBLK entry to the ldmdb database
- * @data:  Raw VBLK to add to the database
- * @len:   Size of the raw VBLK
- * @ldb:   Cache of the database structures
- *
- * The VBLKs are sorted into categories.  Partitions are also sorted by offset.
- *
- * N.B.  This function does not check the validity of the VBLKs.
- *
- * Return:  'true'   The VBLK was added
- *          'false'  An error occurred
- */
-static bool ldm_ldmdb_add (u8 *data, int len, struct ldmdb *ldb)
-{
-	struct vblk *vb;
-	struct list_head *item;
-
-	BUG_ON (!data || !ldb);
-
-	vb = kmalloc (sizeof (*vb), GFP_KERNEL);
-	if (!vb) {
-		ldm_crit ("Out of memory.");
-		return false;
-	}
-
-	if (!ldm_parse_vblk (data, len, vb)) {
-		kfree(vb);
-		return false;			/* Already logged */
-	}
-
-	/* Put vblk into the correct list. */
-	switch (vb->type) {
-	case VBLK_DGR3:
-	case VBLK_DGR4:
-		list_add (&vb->list, &ldb->v_dgrp);
-		break;
-	case VBLK_DSK3:
-	case VBLK_DSK4:
-		list_add (&vb->list, &ldb->v_disk);
-		break;
-	case VBLK_VOL5:
-		list_add (&vb->list, &ldb->v_volu);
-		break;
-	case VBLK_CMP3:
-		list_add (&vb->list, &ldb->v_comp);
-		break;
-	case VBLK_PRT3:
-		/* Sort by the partition's start sector. */
-		list_for_each (item, &ldb->v_part) {
-			struct vblk *v = list_entry (item, struct vblk, list);
-			if ((v->vblk.part.disk_id == vb->vblk.part.disk_id) &&
-			    (v->vblk.part.start > vb->vblk.part.start)) {
-				list_add_tail (&vb->list, &v->list);
-				return true;
-			}
-		}
-		list_add_tail (&vb->list, &ldb->v_part);
-		break;
-	}
-	return true;
-}
-
-/**
- * ldm_frag_add - Add a VBLK fragment to a list
- * @data:   Raw fragment to be added to the list
- * @size:   Size of the raw fragment
- * @frags:  Linked list of VBLK fragments
- *
- * Fragmented VBLKs may not be consecutive in the database, so they are placed
- * in a list so they can be pieced together later.
- *
- * Return:  'true'   Success, the VBLK was added to the list
- *          'false'  Error, a problem occurred
- */
-static bool ldm_frag_add (const u8 *data, int size, struct list_head *frags)
-{
-	struct frag *f;
-	struct list_head *item;
-	int rec, num, group;
-
-	BUG_ON (!data || !frags);
-
-	if (size < 2 * VBLK_SIZE_HEAD) {
-		ldm_error("Value of size is to small.");
-		return false;
-	}
-
-	group = get_unaligned_be32(data + 0x08);
-	rec   = get_unaligned_be16(data + 0x0C);
-	num   = get_unaligned_be16(data + 0x0E);
-	if ((num < 1) || (num > 4)) {
-		ldm_error ("A VBLK claims to have %d parts.", num);
-		return false;
-	}
-	if (rec >= num) {
-		ldm_error("REC value (%d) exceeds NUM value (%d)", rec, num);
-		return false;
-	}
-
-	list_for_each (item, frags) {
-		f = list_entry (item, struct frag, list);
-		if (f->group == group)
-			goto found;
-	}
-
-	f = kmalloc (sizeof (*f) + size*num, GFP_KERNEL);
-	if (!f) {
-		ldm_crit ("Out of memory.");
-		return false;
-	}
-
-	f->group = group;
-	f->num   = num;
-	f->rec   = rec;
-	f->map   = 0xFF << num;
-
-	list_add_tail (&f->list, frags);
-found:
-	if (rec >= f->num) {
-		ldm_error("REC value (%d) exceeds NUM value (%d)", rec, f->num);
-		return false;
-	}
-
-	if (f->map & (1 << rec)) {
-		ldm_error ("Duplicate VBLK, part %d.", rec);
-		f->map &= 0x7F;			/* Mark the group as broken */
-		return false;
-	}
-
-	f->map |= (1 << rec);
-
-	data += VBLK_SIZE_HEAD;
-	size -= VBLK_SIZE_HEAD;
-
-	memcpy (f->data+rec*(size-VBLK_SIZE_HEAD)+VBLK_SIZE_HEAD, data, size);
-
-	return true;
-}
-
-/**
- * ldm_frag_free - Free a linked list of VBLK fragments
- * @list:  Linked list of fragments
- *
- * Free a linked list of VBLK fragments
- *
- * Return:  none
- */
-static void ldm_frag_free (struct list_head *list)
-{
-	struct list_head *item, *tmp;
-
-	BUG_ON (!list);
-
-	list_for_each_safe (item, tmp, list)
-		kfree (list_entry (item, struct frag, list));
-}
-
-/**
- * ldm_frag_commit - Validate fragmented VBLKs and add them to the database
- * @frags:  Linked list of VBLK fragments
- * @ldb:    Cache of the database structures
- *
- * Now that all the fragmented VBLKs have been collected, they must be added to
- * the database for later use.
- *
- * Return:  'true'   All the fragments we added successfully
- *          'false'  One or more of the fragments we invalid
- */
-static bool ldm_frag_commit (struct list_head *frags, struct ldmdb *ldb)
-{
-	struct frag *f;
-	struct list_head *item;
-
-	BUG_ON (!frags || !ldb);
-
-	list_for_each (item, frags) {
-		f = list_entry (item, struct frag, list);
-
-		if (f->map != 0xFF) {
-			ldm_error ("VBLK group %d is incomplete (0x%02x).",
-				f->group, f->map);
-			return false;
-		}
-
-		if (!ldm_ldmdb_add (f->data, f->num*ldb->vm.vblk_size, ldb))
-			return false;		/* Already logged */
-	}
-	return true;
-}
-
-/**
- * ldm_get_vblks - Read the on-disk database of VBLKs into memory
- * @state: Partition check state including device holding the LDM Database
- * @base:  Offset, into @state->bdev, of the database
- * @ldb:   Cache of the database structures
- *
- * To use the information from the VBLKs, they need to be read from the disk,
- * unpacked and validated.  We cache them in @ldb according to their type.
- *
- * Return:  'true'   All the VBLKs were read successfully
- *          'false'  An error occurred
- */
-static bool ldm_get_vblks(struct parsed_partitions *state, unsigned long base,
-			  struct ldmdb *ldb)
-{
-	int size, perbuf, skip, finish, s, v, recs;
-	u8 *data = NULL;
-	Sector sect;
-	bool result = false;
-	LIST_HEAD (frags);
-
-	BUG_ON(!state || !ldb);
-
-	size   = ldb->vm.vblk_size;
-	perbuf = 512 / size;
-	skip   = ldb->vm.vblk_offset >> 9;		/* Bytes to sectors */
-	finish = (size * ldb->vm.last_vblk_seq) >> 9;
-
-	for (s = skip; s < finish; s++) {		/* For each sector */
-		data = read_part_sector(state, base + OFF_VMDB + s, &sect);
-		if (!data) {
-			ldm_crit ("Disk read failed.");
-			goto out;
-		}
-
-		for (v = 0; v < perbuf; v++, data+=size) {  /* For each vblk */
-			if (MAGIC_VBLK != get_unaligned_be32(data)) {
-				ldm_error ("Expected to find a VBLK.");
-				goto out;
-			}
-
-			recs = get_unaligned_be16(data + 0x0E);	/* Number of records */
-			if (recs == 1) {
-				if (!ldm_ldmdb_add (data, size, ldb))
-					goto out;	/* Already logged */
-			} else if (recs > 1) {
-				if (!ldm_frag_add (data, size, &frags))
-					goto out;	/* Already logged */
-			}
-			/* else Record is not in use, ignore it. */
-		}
-		put_dev_sector (sect);
-		data = NULL;
-	}
-
-	result = ldm_frag_commit (&frags, ldb);	/* Failures, already logged */
-out:
-	if (data)
-		put_dev_sector (sect);
-	ldm_frag_free (&frags);
-
-	return result;
-}
-
-/**
- * ldm_free_vblks - Free a linked list of vblk's
- * @lh:  Head of a linked list of struct vblk
- *
- * Free a list of vblk's and free the memory used to maintain the list.
- *
- * Return:  none
- */
-static void ldm_free_vblks (struct list_head *lh)
-{
-	struct list_head *item, *tmp;
-
-	BUG_ON (!lh);
-
-	list_for_each_safe (item, tmp, lh)
-		kfree (list_entry (item, struct vblk, list));
-}
-
-
-/**
- * ldm_partition - Find out whether a device is a dynamic disk and handle it
- * @state: Partition check state including device holding the LDM Database
- *
- * This determines whether the device @bdev is a dynamic disk and if so creates
- * the partitions necessary in the gendisk structure pointed to by @hd.
- *
- * We create a dummy device 1, which contains the LDM database, and then create
- * each partition described by the LDM database in sequence as devices 2+. For
- * example, if the device is hda, we would have: hda1: LDM database, hda2, hda3,
- * and so on: the actual data containing partitions.
- *
- * Return:  1 Success, @state->bdev is a dynamic disk and we handled it
- *          0 Success, @state->bdev is not a dynamic disk
- *         -1 An error occurred before enough information had been read
- *            Or @state->bdev is a dynamic disk, but it may be corrupted
- */
-int ldm_partition(struct parsed_partitions *state)
-{
-	struct ldmdb  *ldb;
-	unsigned long base;
-	int result = -1;
-
-	BUG_ON(!state);
-
-	/* Look for signs of a Dynamic Disk */
-	if (!ldm_validate_partition_table(state))
-		return 0;
-
-	ldb = kmalloc (sizeof (*ldb), GFP_KERNEL);
-	if (!ldb) {
-		ldm_crit ("Out of memory.");
-		goto out;
-	}
-
-	/* Parse and check privheads. */
-	if (!ldm_validate_privheads(state, &ldb->ph))
-		goto out;		/* Already logged */
-
-	/* All further references are relative to base (database start). */
-	base = ldb->ph.config_start;
-
-	/* Parse and check tocs and vmdb. */
-	if (!ldm_validate_tocblocks(state, base, ldb) ||
-	    !ldm_validate_vmdb(state, base, ldb))
-	    	goto out;		/* Already logged */
-
-	/* Initialize vblk lists in ldmdb struct */
-	INIT_LIST_HEAD (&ldb->v_dgrp);
-	INIT_LIST_HEAD (&ldb->v_disk);
-	INIT_LIST_HEAD (&ldb->v_volu);
-	INIT_LIST_HEAD (&ldb->v_comp);
-	INIT_LIST_HEAD (&ldb->v_part);
-
-	if (!ldm_get_vblks(state, base, ldb)) {
-		ldm_crit ("Failed to read the VBLKs from the database.");
-		goto cleanup;
-	}
-
-	/* Finally, create the data partition devices. */
-	if (ldm_create_data_partitions(state, ldb)) {
-		ldm_debug ("Parsed LDM database successfully.");
-		result = 1;
-	}
-	/* else Already logged */
-
-cleanup:
-	ldm_free_vblks (&ldb->v_dgrp);
-	ldm_free_vblks (&ldb->v_disk);
-	ldm_free_vblks (&ldb->v_volu);
-	ldm_free_vblks (&ldb->v_comp);
-	ldm_free_vblks (&ldb->v_part);
-out:
-	kfree (ldb);
-	return result;
-}