xref: /OK3568_Linux_fs/kernel/fs/freevxfs/vxfs_fshead.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * Copyright (c) 2000-2001 Christoph Hellwig.
3*4882a593Smuzhiyun  * Copyright (c) 2016 Krzysztof Blaszkowski
4*4882a593Smuzhiyun  * All rights reserved.
5*4882a593Smuzhiyun  *
6*4882a593Smuzhiyun  * Redistribution and use in source and binary forms, with or without
7*4882a593Smuzhiyun  * modification, are permitted provided that the following conditions
8*4882a593Smuzhiyun  * are met:
9*4882a593Smuzhiyun  * 1. Redistributions of source code must retain the above copyright
10*4882a593Smuzhiyun  *    notice, this list of conditions, and the following disclaimer,
11*4882a593Smuzhiyun  *    without modification.
12*4882a593Smuzhiyun  * 2. The name of the author may not be used to endorse or promote products
13*4882a593Smuzhiyun  *    derived from this software without specific prior written permission.
14*4882a593Smuzhiyun  *
15*4882a593Smuzhiyun  * Alternatively, this software may be distributed under the terms of the
16*4882a593Smuzhiyun  * GNU General Public License ("GPL").
17*4882a593Smuzhiyun  *
18*4882a593Smuzhiyun  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19*4882a593Smuzhiyun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20*4882a593Smuzhiyun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21*4882a593Smuzhiyun  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
22*4882a593Smuzhiyun  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23*4882a593Smuzhiyun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24*4882a593Smuzhiyun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25*4882a593Smuzhiyun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26*4882a593Smuzhiyun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27*4882a593Smuzhiyun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28*4882a593Smuzhiyun  * SUCH DAMAGE.
29*4882a593Smuzhiyun  *
30*4882a593Smuzhiyun  */
31*4882a593Smuzhiyun #ifndef _VXFS_FSHEAD_H_
32*4882a593Smuzhiyun #define _VXFS_FSHEAD_H_
33*4882a593Smuzhiyun 
34*4882a593Smuzhiyun /*
35*4882a593Smuzhiyun  * Veritas filesystem driver - fileset header structures.
36*4882a593Smuzhiyun  *
37*4882a593Smuzhiyun  * This file contains the physical structure of the VxFS
38*4882a593Smuzhiyun  * fileset header.
39*4882a593Smuzhiyun  */
40*4882a593Smuzhiyun 
41*4882a593Smuzhiyun 
42*4882a593Smuzhiyun /*
43*4882a593Smuzhiyun  * Fileset header
44*4882a593Smuzhiyun  */
45*4882a593Smuzhiyun struct vxfs_fsh {
46*4882a593Smuzhiyun 	__fs32		fsh_version;		/* fileset header version */
47*4882a593Smuzhiyun 	__fs32		fsh_fsindex;		/* fileset index */
48*4882a593Smuzhiyun 	__fs32		fsh_time;		/* modification time - sec */
49*4882a593Smuzhiyun 	__fs32		fsh_utime;		/* modification time - usec */
50*4882a593Smuzhiyun 	__fs32		fsh_extop;		/* extop flags */
51*4882a593Smuzhiyun 	__fs32		fsh_ninodes;		/* allocated inodes */
52*4882a593Smuzhiyun 	__fs32		fsh_nau;		/* number of IAUs */
53*4882a593Smuzhiyun 	__fs32		fsh_old_ilesize;	/* old size of ilist */
54*4882a593Smuzhiyun 	__fs32		fsh_dflags;		/* flags */
55*4882a593Smuzhiyun 	__fs32		fsh_quota;		/* quota limit */
56*4882a593Smuzhiyun 	__fs32		fsh_maxinode;		/* maximum inode number */
57*4882a593Smuzhiyun 	__fs32		fsh_iauino;		/* IAU inode */
58*4882a593Smuzhiyun 	__fs32		fsh_ilistino[2];	/* ilist inodes */
59*4882a593Smuzhiyun 	__fs32		fsh_lctino;		/* link count table inode */
60*4882a593Smuzhiyun 
61*4882a593Smuzhiyun 	/*
62*4882a593Smuzhiyun 	 * Slightly more fields follow, but they
63*4882a593Smuzhiyun 	 *  a) are not of any interest for us, and
64*4882a593Smuzhiyun 	 *  b) differ a lot in different vxfs versions/ports
65*4882a593Smuzhiyun 	 */
66*4882a593Smuzhiyun };
67*4882a593Smuzhiyun 
68*4882a593Smuzhiyun #endif /* _VXFS_FSHEAD_H_ */
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