xref: /onnv-gate/usr/src/lib/libntfs/common/include/ntfs/lcnalloc.h (revision 9663:ace9a2ac3683)
1*9663SMark.Logan@Sun.COM /*
2*9663SMark.Logan@Sun.COM  * lcnalloc.h - Exports for cluster (de)allocation. Part of the Linux-NTFS
3*9663SMark.Logan@Sun.COM  *		project.
4*9663SMark.Logan@Sun.COM  *
5*9663SMark.Logan@Sun.COM  * Copyright (c) 2002 Anton Altaparmakov
6*9663SMark.Logan@Sun.COM  * Copyright (c) 2004 Yura Pakhuchiy
7*9663SMark.Logan@Sun.COM  *
8*9663SMark.Logan@Sun.COM  * This program/include file is free software; you can redistribute it and/or
9*9663SMark.Logan@Sun.COM  * modify it under the terms of the GNU General Public License as published
10*9663SMark.Logan@Sun.COM  * by the Free Software Foundation; either version 2 of the License, or
11*9663SMark.Logan@Sun.COM  * (at your option) any later version.
12*9663SMark.Logan@Sun.COM  *
13*9663SMark.Logan@Sun.COM  * This program/include file is distributed in the hope that it will be
14*9663SMark.Logan@Sun.COM  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
15*9663SMark.Logan@Sun.COM  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16*9663SMark.Logan@Sun.COM  * GNU General Public License for more details.
17*9663SMark.Logan@Sun.COM  *
18*9663SMark.Logan@Sun.COM  * You should have received a copy of the GNU General Public License
19*9663SMark.Logan@Sun.COM  * along with this program (in the main directory of the Linux-NTFS
20*9663SMark.Logan@Sun.COM  * distribution in the file COPYING); if not, write to the Free Software
21*9663SMark.Logan@Sun.COM  * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
22*9663SMark.Logan@Sun.COM  */
23*9663SMark.Logan@Sun.COM 
24*9663SMark.Logan@Sun.COM #ifndef _NTFS_LCNALLOC_H
25*9663SMark.Logan@Sun.COM #define _NTFS_LCNALLOC_H
26*9663SMark.Logan@Sun.COM 
27*9663SMark.Logan@Sun.COM #include "types.h"
28*9663SMark.Logan@Sun.COM #include "runlist.h"
29*9663SMark.Logan@Sun.COM #include "volume.h"
30*9663SMark.Logan@Sun.COM 
31*9663SMark.Logan@Sun.COM /**
32*9663SMark.Logan@Sun.COM  * enum NTFS_CLUSTER_ALLOCATION_ZONES -
33*9663SMark.Logan@Sun.COM  */
34*9663SMark.Logan@Sun.COM typedef enum {
35*9663SMark.Logan@Sun.COM 	FIRST_ZONE	= 0,	/* For sanity checking. */
36*9663SMark.Logan@Sun.COM 	MFT_ZONE	= 0,	/* Allocate from $MFT zone. */
37*9663SMark.Logan@Sun.COM 	DATA_ZONE	= 1,	/* Allocate from $DATA zone. */
38*9663SMark.Logan@Sun.COM 	LAST_ZONE	= 1,	/* For sanity checking. */
39*9663SMark.Logan@Sun.COM } NTFS_CLUSTER_ALLOCATION_ZONES;
40*9663SMark.Logan@Sun.COM 
41*9663SMark.Logan@Sun.COM extern runlist *ntfs_cluster_alloc(ntfs_volume *vol, VCN start_vcn, s64 count,
42*9663SMark.Logan@Sun.COM 		LCN start_lcn, const NTFS_CLUSTER_ALLOCATION_ZONES zone);
43*9663SMark.Logan@Sun.COM 
44*9663SMark.Logan@Sun.COM extern int ntfs_cluster_free_from_rl(ntfs_volume *vol, runlist *rl);
45*9663SMark.Logan@Sun.COM 
46*9663SMark.Logan@Sun.COM extern int ntfs_cluster_free(ntfs_volume *vol, ntfs_attr *na, VCN start_vcn,
47*9663SMark.Logan@Sun.COM 		s64 count);
48*9663SMark.Logan@Sun.COM 
49*9663SMark.Logan@Sun.COM #endif /* defined _NTFS_LCNALLOC_H */
50*9663SMark.Logan@Sun.COM 
51