lcnalloc.h

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/*
 * lcnalloc.h - Exports for cluster (de)allocation. Part of the Linux-NTFS
 *		project.
 *
 * Copyright (c) 2002 Anton Altaparmakov
 * Copyright (c) 2004 Yura Pakhuchiy
 *
 * This program/include file 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/include file 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 Linux-NTFS
 * distribution in the file COPYING); if not, write to the Free Software
 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _NTFS_LCNALLOC_H
#define _NTFS_LCNALLOC_H

#include "types.h"
#include "runlist.h"
#include "volume.h"

/**
 * enum NTFS_CLUSTER_ALLOCATION_ZONES -
 */
typedef enum {
	FIRST_ZONE	= 0,	/* For sanity checking. */
	MFT_ZONE	= 0,	/* Allocate from $MFT zone. */
	DATA_ZONE	= 1,	/* Allocate from $DATA zone. */
	LAST_ZONE	= 1,	/* For sanity checking. */
} NTFS_CLUSTER_ALLOCATION_ZONES;

extern runlist *ntfs_cluster_alloc(ntfs_volume *vol, VCN start_vcn, s64 count,
		LCN start_lcn, const NTFS_CLUSTER_ALLOCATION_ZONES zone);

extern int ntfs_cluster_free_from_rl(ntfs_volume *vol, runlist *rl);

extern int ntfs_cluster_free(ntfs_volume *vol, ntfs_attr *na, VCN start_vcn,
		s64 count);

#endif /* defined _NTFS_LCNALLOC_H */