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/*
 *  linux/include/linux/ufs_fs_sb.h
 *
 * Copyright (C) 1996
 * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu)
 * Laboratory for Computer Science Research Computing Facility
 * Rutgers, The State University of New Jersey
 *
 * $Id: ufs_fs_sb.h,v 1.1.1.1 2004-04-15 02:37:07 phoenix Exp $
 *
 * Write support by Daniel Pirkl <daniel.pirkl@email.cz>
 */
 
#ifndef __LINUX_UFS_FS_SB_H
#define __LINUX_UFS_FS_SB_H
 
#include <linux/ufs_fs.h>
 
/*
 * This structure is used for reading disk structures larger
 * than the size of fragment.
 */
struct ufs_buffer_head {
        unsigned fragment;                      /* first fragment */
        unsigned count;                         /* number of fragments */
        struct buffer_head * bh[UFS_MAXFRAG];   /* buffers */
};
 
struct ufs_cg_private_info {
        struct ufs_cylinder_group ucg;
        __u32   c_cgx;          /* number of cylidner group */
        __u16   c_ncyl;         /* number of cyl's this cg */
        __u16   c_niblk;        /* number of inode blocks this cg */
        __u32   c_ndblk;        /* number of data blocks this cg */
        __u32   c_rotor;        /* position of last used block */
        __u32   c_frotor;       /* position of last used frag */
        __u32   c_irotor;       /* position of last used inode */
        __u32   c_btotoff;      /* (__u32) block totals per cylinder */
        __u32   c_boff;         /* (short) free block positions */
        __u32   c_iusedoff;     /* (char) used inode map */
        __u32   c_freeoff;      /* (u_char) free block map */
        __u32   c_nextfreeoff;  /* (u_char) next available space */
        __u32   c_clustersumoff;/* (u_int32) counts of avail clusters */
        __u32   c_clusteroff;   /* (u_int8) free cluster map */
        __u32   c_nclusterblks; /* number of clusters this cg */
};
 
struct ufs_sb_private_info {
        struct ufs_buffer_head s_ubh; /* buffer containing super block */
        __u32   s_sblkno;       /* offset of super-blocks in filesys */
        __u32   s_cblkno;       /* offset of cg-block in filesys */
        __u32   s_iblkno;       /* offset of inode-blocks in filesys */
        __u32   s_dblkno;       /* offset of first data after cg */
        __u32   s_cgoffset;     /* cylinder group offset in cylinder */
        __u32   s_cgmask;       /* used to calc mod fs_ntrak */
        __u32   s_size;         /* number of blocks (fragments) in fs */
        __u32   s_dsize;        /* number of data blocks in fs */
        __u32   s_ncg;          /* number of cylinder groups */
        __u32   s_bsize;        /* size of basic blocks */
        __u32   s_fsize;        /* size of fragments */
        __u32   s_fpb;          /* fragments per block */
        __u32   s_minfree;      /* minimum percentage of free blocks */
        __u32   s_bmask;        /* `blkoff'' calc of blk offsets */
        __u32   s_fmask;        /* s_fsize mask */
        __u32   s_bshift;       /* `lblkno'' calc of logical blkno */
        __u32   s_fshift;       /* s_fsize shift */
        __u32   s_fpbshift;     /* fragments per block shift */
        __u32   s_fsbtodb;      /* fsbtodb and dbtofsb shift constant */
        __u32   s_sbsize;       /* actual size of super block */
        __u32   s_csmask;       /* csum block offset */
        __u32   s_csshift;      /* csum block number */
        __u32   s_nindir;       /* value of NINDIR */
        __u32   s_inopb;        /* value of INOPB */
        __u32   s_nspf;         /* value of NSPF */
        __u32   s_npsect;       /* # sectors/track including spares */
        __u32   s_interleave;   /* hardware sector interleave */
        __u32   s_trackskew;    /* sector 0 skew, per track */
        __u32   s_csaddr;       /* blk addr of cyl grp summary area */
        __u32   s_cssize;       /* size of cyl grp summary area */
        __u32   s_cgsize;       /* cylinder group size */
        __u32   s_ntrak;        /* tracks per cylinder */
        __u32   s_nsect;        /* sectors per track */
        __u32   s_spc;          /* sectors per cylinder */
        __u32   s_ipg;          /* inodes per group */
        __u32   s_fpg;          /* fragments per group */
        __u32   s_cpc;          /* cyl per cycle in postbl */
        __s32   s_contigsumsize;/* size of cluster summary array, 44bsd */
        __s64   s_qbmask;       /* ~usb_bmask */
        __s64   s_qfmask;       /* ~usb_fmask */
        __s32   s_postblformat; /* format of positional layout tables */
        __s32   s_nrpos;        /* number of rotational positions */
        __s32   s_postbloff;    /* (__s16) rotation block list head */
        __s32   s_rotbloff;     /* (__u8) blocks for each rotation */
 
        __u32   s_fpbmask;      /* fragments per block mask */
        __u32   s_apb;          /* address per block */
        __u32   s_2apb;         /* address per block^2 */
        __u32   s_3apb;         /* address per block^3 */
        __u32   s_apbmask;      /* address per block mask */
        __u32   s_apbshift;     /* address per block shift */
        __u32   s_2apbshift;    /* address per block shift * 2 */
        __u32   s_3apbshift;    /* address per block shift * 3 */
        __u32   s_nspfshift;    /* number of sector per fragment shift */
        __u32   s_nspb;         /* number of sector per block */
        __u32   s_inopf;        /* inodes per fragment */
        __u32   s_sbbase;       /* offset of NeXTstep superblock */
        __u32   s_bpf;          /* bits per fragment */
        __u32   s_bpfshift;     /* bits per fragment shift*/
        __u32   s_bpfmask;      /* bits per fragment mask */
 
        __u32   s_maxsymlinklen;/* upper limit on fast symlinks' size */
};
 
 
#define UFS_MAX_GROUP_LOADED 8
#define UFS_CGNO_EMPTY ((unsigned)-1)
 
struct ufs_sb_info {
        struct ufs_sb_private_info * s_uspi;
        struct ufs_csum * s_csp[UFS_MAXCSBUFS];
        unsigned s_bytesex;
        unsigned s_flags;
        struct buffer_head ** s_ucg;
        struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED];
        unsigned s_cgno[UFS_MAX_GROUP_LOADED];
        unsigned short s_cg_loaded;
        unsigned s_mount_opt;
};
 
/*
 * Sizes of this structures are:
 *      ufs_super_block_first   512
 *      ufs_super_block_second  512
 *      ufs_super_block_third   356
 */
struct ufs_super_block_first {
        __u32   fs_link;
        __u32   fs_rlink;
        __u32   fs_sblkno;
        __u32   fs_cblkno;
        __u32   fs_iblkno;
        __u32   fs_dblkno;
        __u32   fs_cgoffset;
        __u32   fs_cgmask;
        __u32   fs_time;
        __u32   fs_size;
        __u32   fs_dsize;
        __u32   fs_ncg;
        __u32   fs_bsize;
        __u32   fs_fsize;
        __u32   fs_frag;
        __u32   fs_minfree;
        __u32   fs_rotdelay;
        __u32   fs_rps;
        __u32   fs_bmask;
        __u32   fs_fmask;
        __u32   fs_bshift;
        __u32   fs_fshift;
        __u32   fs_maxcontig;
        __u32   fs_maxbpg;
        __u32   fs_fragshift;
        __u32   fs_fsbtodb;
        __u32   fs_sbsize;
        __u32   fs_csmask;
        __u32   fs_csshift;
        __u32   fs_nindir;
        __u32   fs_inopb;
        __u32   fs_nspf;
        __u32   fs_optim;
        union {
                struct {
                        __u32   fs_npsect;
                } fs_sun;
                struct {
                        __s32   fs_state;
                } fs_sunx86;
        } fs_u1;
        __u32   fs_interleave;
        __u32   fs_trackskew;
        __u32   fs_id[2];
        __u32   fs_csaddr;
        __u32   fs_cssize;
        __u32   fs_cgsize;
        __u32   fs_ntrak;
        __u32   fs_nsect;
        __u32   fs_spc;
        __u32   fs_ncyl;
        __u32   fs_cpg;
        __u32   fs_ipg;
        __u32   fs_fpg;
        struct ufs_csum fs_cstotal;
        __s8    fs_fmod;
        __s8    fs_clean;
        __s8    fs_ronly;
        __s8    fs_flags;
        __s8    fs_fsmnt[UFS_MAXMNTLEN - 212];
 
};
 
struct ufs_super_block_second {
        __s8    fs_fsmnt[212];
        __u32   fs_cgrotor;
        __u32   fs_csp[UFS_MAXCSBUFS];
        __u32   fs_maxcluster;
        __u32   fs_cpc;
        __u16   fs_opostbl[82];
};
 
struct ufs_super_block_third {
        __u16   fs_opostbl[46];
        union {
                struct {
                        __s32   fs_sparecon[53];/* reserved for future constants */
                        __s32   fs_reclaim;
                        __s32   fs_sparecon2[1];
                        __s32   fs_state;       /* file system state time stamp */
                        __u32   fs_qbmask[2];   /* ~usb_bmask */
                        __u32   fs_qfmask[2];   /* ~usb_fmask */
                } fs_sun;
                struct {
                        __s32   fs_sparecon[53];/* reserved for future constants */
                        __s32   fs_reclaim;
                        __s32   fs_sparecon2[1];
                        __u32   fs_npsect;      /* # sectors/track including spares */
                        __u32   fs_qbmask[2];   /* ~usb_bmask */
                        __u32   fs_qfmask[2];   /* ~usb_fmask */
                } fs_sunx86;
                struct {
                        __s32   fs_sparecon[50];/* reserved for future constants */
                        __s32   fs_contigsumsize;/* size of cluster summary array */
                        __s32   fs_maxsymlinklen;/* max length of an internal symlink */
                        __s32   fs_inodefmt;    /* format of on-disk inodes */
                        __u32   fs_maxfilesize[2];      /* max representable file size */
                        __u32   fs_qbmask[2];   /* ~usb_bmask */
                        __u32   fs_qfmask[2];   /* ~usb_fmask */
                        __s32   fs_state;       /* file system state time stamp */
                } fs_44;
        } fs_u2;
        __s32   fs_postblformat;
        __s32   fs_nrpos;
        __s32   fs_postbloff;
        __s32   fs_rotbloff;
        __s32   fs_magic;
        __u8    fs_space[1];
};
 
#endif /* __LINUX_UFS_FS_SB_H */

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[/] [or1k/] [tags/] [LINUX_2_4_26_OR32/] [linux/] [linux-2.4/] [include/] [linux/] [ufs_fs_sb.h] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
2			`* linux/include/linux/ufs_fs_sb.h`
3			`*`
4			`* Copyright (C) 1996`
5			`* Adrian Rodriguez (adrian@franklins-tower.rutgers.edu)`
6			`* Laboratory for Computer Science Research Computing Facility`
7			`* Rutgers, The State University of New Jersey`
8			`*`
9			`* $Id: ufs_fs_sb.h,v 1.1.1.1 2004-04-15 02:37:07 phoenix Exp $`
10			`*`
11			`* Write support by Daniel Pirkl <daniel.pirkl@email.cz>`
12			`*/`
13
14			`#ifndef __LINUX_UFS_FS_SB_H`
15			`#define __LINUX_UFS_FS_SB_H`
16
17			`#include <linux/ufs_fs.h>`
18
19			`/*`
20			`* This structure is used for reading disk structures larger`
21			`* than the size of fragment.`
22			`*/`
23			`struct ufs_buffer_head {`
24			`unsigned fragment; /* first fragment */`
25			`unsigned count; /* number of fragments */`
26			`struct buffer_head * bh[UFS_MAXFRAG]; /* buffers */`
27			`};`
28
29			`struct ufs_cg_private_info {`
30			`struct ufs_cylinder_group ucg;`
31			`__u32 c_cgx; /* number of cylidner group */`
32			`__u16 c_ncyl; /* number of cyl's this cg */`
33			`__u16 c_niblk; /* number of inode blocks this cg */`
34			`__u32 c_ndblk; /* number of data blocks this cg */`
35			`__u32 c_rotor; /* position of last used block */`
36			`__u32 c_frotor; /* position of last used frag */`
37			`__u32 c_irotor; /* position of last used inode */`
38			`__u32 c_btotoff; /* (__u32) block totals per cylinder */`
39			`__u32 c_boff; /* (short) free block positions */`
40			`__u32 c_iusedoff; /* (char) used inode map */`
41			`__u32 c_freeoff; /* (u_char) free block map */`
42			`__u32 c_nextfreeoff; /* (u_char) next available space */`
43			`__u32 c_clustersumoff;/* (u_int32) counts of avail clusters */`
44			`__u32 c_clusteroff; /* (u_int8) free cluster map */`
45			`__u32 c_nclusterblks; /* number of clusters this cg */`
46			`};`
47
48			`struct ufs_sb_private_info {`
49			`struct ufs_buffer_head s_ubh; /* buffer containing super block */`
50			`__u32 s_sblkno; /* offset of super-blocks in filesys */`
51			`__u32 s_cblkno; /* offset of cg-block in filesys */`
52			`__u32 s_iblkno; /* offset of inode-blocks in filesys */`
53			`__u32 s_dblkno; /* offset of first data after cg */`
54			`__u32 s_cgoffset; /* cylinder group offset in cylinder */`
55			`__u32 s_cgmask; /* used to calc mod fs_ntrak */`
56			`__u32 s_size; /* number of blocks (fragments) in fs */`
57			`__u32 s_dsize; /* number of data blocks in fs */`
58			`__u32 s_ncg; /* number of cylinder groups */`
59			`__u32 s_bsize; /* size of basic blocks */`
60			`__u32 s_fsize; /* size of fragments */`
61			`__u32 s_fpb; /* fragments per block */`
62			`__u32 s_minfree; /* minimum percentage of free blocks */`
63			__u32 s_bmask; /* `blkoff'' calc of blk offsets */
64			`__u32 s_fmask; /* s_fsize mask */`
65			__u32 s_bshift; /* `lblkno'' calc of logical blkno */
66			`__u32 s_fshift; /* s_fsize shift */`
67			`__u32 s_fpbshift; /* fragments per block shift */`
68			`__u32 s_fsbtodb; /* fsbtodb and dbtofsb shift constant */`
69			`__u32 s_sbsize; /* actual size of super block */`
70			`__u32 s_csmask; /* csum block offset */`
71			`__u32 s_csshift; /* csum block number */`
72			`__u32 s_nindir; /* value of NINDIR */`
73			`__u32 s_inopb; /* value of INOPB */`
74			`__u32 s_nspf; /* value of NSPF */`
75			`__u32 s_npsect; /* # sectors/track including spares */`
76			`__u32 s_interleave; /* hardware sector interleave */`
77			`__u32 s_trackskew; /* sector 0 skew, per track */`
78			`__u32 s_csaddr; /* blk addr of cyl grp summary area */`
79			`__u32 s_cssize; /* size of cyl grp summary area */`
80			`__u32 s_cgsize; /* cylinder group size */`
81			`__u32 s_ntrak; /* tracks per cylinder */`
82			`__u32 s_nsect; /* sectors per track */`
83			`__u32 s_spc; /* sectors per cylinder */`
84			`__u32 s_ipg; /* inodes per group */`
85			`__u32 s_fpg; /* fragments per group */`
86			`__u32 s_cpc; /* cyl per cycle in postbl */`
87			`__s32 s_contigsumsize;/* size of cluster summary array, 44bsd */`
88			`__s64 s_qbmask; /* ~usb_bmask */`
89			`__s64 s_qfmask; /* ~usb_fmask */`
90			`__s32 s_postblformat; /* format of positional layout tables */`
91			`__s32 s_nrpos; /* number of rotational positions */`
92			`__s32 s_postbloff; /* (__s16) rotation block list head */`
93			`__s32 s_rotbloff; /* (__u8) blocks for each rotation */`
94
95			`__u32 s_fpbmask; /* fragments per block mask */`
96			`__u32 s_apb; /* address per block */`
97			`__u32 s_2apb; /* address per block^2 */`
98			`__u32 s_3apb; /* address per block^3 */`
99			`__u32 s_apbmask; /* address per block mask */`
100			`__u32 s_apbshift; /* address per block shift */`
101			`__u32 s_2apbshift; /* address per block shift * 2 */`
102			`__u32 s_3apbshift; /* address per block shift * 3 */`
103			`__u32 s_nspfshift; /* number of sector per fragment shift */`
104			`__u32 s_nspb; /* number of sector per block */`
105			`__u32 s_inopf; /* inodes per fragment */`
106			`__u32 s_sbbase; /* offset of NeXTstep superblock */`
107			`__u32 s_bpf; /* bits per fragment */`
108			`__u32 s_bpfshift; /* bits per fragment shift*/`
109			`__u32 s_bpfmask; /* bits per fragment mask */`
110
111			`__u32 s_maxsymlinklen;/* upper limit on fast symlinks' size */`
112			`};`
113
114
115			`#define UFS_MAX_GROUP_LOADED 8`
116			`#define UFS_CGNO_EMPTY ((unsigned)-1)`
117
118			`struct ufs_sb_info {`
119			`struct ufs_sb_private_info * s_uspi;`
120			`struct ufs_csum * s_csp[UFS_MAXCSBUFS];`
121			`unsigned s_bytesex;`
122			`unsigned s_flags;`
123			`struct buffer_head ** s_ucg;`
124			`struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED];`
125			`unsigned s_cgno[UFS_MAX_GROUP_LOADED];`
126			`unsigned short s_cg_loaded;`
127			`unsigned s_mount_opt;`
128			`};`
129
130			`/*`
131			`* Sizes of this structures are:`
132			`* ufs_super_block_first 512`
133			`* ufs_super_block_second 512`
134			`* ufs_super_block_third 356`
135			`*/`
136			`struct ufs_super_block_first {`
137			`__u32 fs_link;`
138			`__u32 fs_rlink;`
139			`__u32 fs_sblkno;`
140			`__u32 fs_cblkno;`
141			`__u32 fs_iblkno;`
142			`__u32 fs_dblkno;`
143			`__u32 fs_cgoffset;`
144			`__u32 fs_cgmask;`
145			`__u32 fs_time;`
146			`__u32 fs_size;`
147			`__u32 fs_dsize;`
148			`__u32 fs_ncg;`
149			`__u32 fs_bsize;`
150			`__u32 fs_fsize;`
151			`__u32 fs_frag;`
152			`__u32 fs_minfree;`
153			`__u32 fs_rotdelay;`
154			`__u32 fs_rps;`
155			`__u32 fs_bmask;`
156			`__u32 fs_fmask;`
157			`__u32 fs_bshift;`
158			`__u32 fs_fshift;`
159			`__u32 fs_maxcontig;`
160			`__u32 fs_maxbpg;`
161			`__u32 fs_fragshift;`
162			`__u32 fs_fsbtodb;`
163			`__u32 fs_sbsize;`
164			`__u32 fs_csmask;`
165			`__u32 fs_csshift;`
166			`__u32 fs_nindir;`
167			`__u32 fs_inopb;`
168			`__u32 fs_nspf;`
169			`__u32 fs_optim;`
170			`union {`
171			`struct {`
172			`__u32 fs_npsect;`
173			`} fs_sun;`
174			`struct {`
175			`__s32 fs_state;`
176			`} fs_sunx86;`
177			`} fs_u1;`
178			`__u32 fs_interleave;`
179			`__u32 fs_trackskew;`
180			`__u32 fs_id[2];`
181			`__u32 fs_csaddr;`
182			`__u32 fs_cssize;`
183			`__u32 fs_cgsize;`
184			`__u32 fs_ntrak;`
185			`__u32 fs_nsect;`
186			`__u32 fs_spc;`
187			`__u32 fs_ncyl;`
188			`__u32 fs_cpg;`
189			`__u32 fs_ipg;`
190			`__u32 fs_fpg;`
191			`struct ufs_csum fs_cstotal;`
192			`__s8 fs_fmod;`
193			`__s8 fs_clean;`
194			`__s8 fs_ronly;`
195			`__s8 fs_flags;`
196			`__s8 fs_fsmnt[UFS_MAXMNTLEN - 212];`
197
198			`};`
199
200			`struct ufs_super_block_second {`
201			`__s8 fs_fsmnt[212];`
202			`__u32 fs_cgrotor;`
203			`__u32 fs_csp[UFS_MAXCSBUFS];`
204			`__u32 fs_maxcluster;`
205			`__u32 fs_cpc;`
206			`__u16 fs_opostbl[82];`
207			`};`
208
209			`struct ufs_super_block_third {`
210			`__u16 fs_opostbl[46];`
211			`union {`
212			`struct {`
213			`__s32 fs_sparecon[53];/* reserved for future constants */`
214			`__s32 fs_reclaim;`
215			`__s32 fs_sparecon2[1];`
216			`__s32 fs_state; /* file system state time stamp */`
217			`__u32 fs_qbmask[2]; /* ~usb_bmask */`
218			`__u32 fs_qfmask[2]; /* ~usb_fmask */`
219			`} fs_sun;`
220			`struct {`
221			`__s32 fs_sparecon[53];/* reserved for future constants */`
222			`__s32 fs_reclaim;`
223			`__s32 fs_sparecon2[1];`
224			`__u32 fs_npsect; /* # sectors/track including spares */`
225			`__u32 fs_qbmask[2]; /* ~usb_bmask */`
226			`__u32 fs_qfmask[2]; /* ~usb_fmask */`
227			`} fs_sunx86;`
228			`struct {`
229			`__s32 fs_sparecon[50];/* reserved for future constants */`
230			`__s32 fs_contigsumsize;/* size of cluster summary array */`
231			`__s32 fs_maxsymlinklen;/* max length of an internal symlink */`
232			`__s32 fs_inodefmt; /* format of on-disk inodes */`
233			`__u32 fs_maxfilesize[2]; /* max representable file size */`
234			`__u32 fs_qbmask[2]; /* ~usb_bmask */`
235			`__u32 fs_qfmask[2]; /* ~usb_fmask */`
236			`__s32 fs_state; /* file system state time stamp */`
237			`} fs_44;`
238			`} fs_u2;`
239			`__s32 fs_postblformat;`
240			`__s32 fs_nrpos;`
241			`__s32 fs_postbloff;`
242			`__s32 fs_rotbloff;`
243			`__s32 fs_magic;`
244			`__u8 fs_space[1];`
245			`};`
246
247			`#endif /* __LINUX_UFS_FS_SB_H */`