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- Committer: Bazaar Package Importer
- Author(s): Fabio M. Di Nitto
- Date: 2007-10-25 09:28:08 UTC
- mfrom: (15.1.1 upstream)
- Revision ID: james.westby@ubuntu.com-20071025092808-1yhj12t7s4zqsfu5
Tags: 1.4.13a+git20070930-1ubuntu1
* Merge from debian unstable, remaining changes:
- Build with -fno-stack-protector.
- Change silo.postinst to automatically update the boot block without
invoking siloconfig and keep asking questions on upgrades.
- Convert silo.conf to use /dev/disk/by-uuid.
- Ubuntu maintainer foobar.
- Fix debian/rules call to dh_installdocs.
- Drop the requirement of gcc-4.1 and start using default gcc.
- Build with -fno-stack-protector.
- Change silo.postinst to automatically update the boot block without
invoking siloconfig and keep asking questions on upgrades.
- Convert silo.conf to use /dev/disk/by-uuid.
- Ubuntu maintainer foobar.
- Fix debian/rules call to dh_installdocs.
- Drop the requirement of gcc-4.1 and start using default gcc.
- files added:
- COPYING
- common
- debian/manpages
- docs
- etc
- first
- first-isofs
- include
- include/asm
- include/et
- include/ext2fs
- include/non-linux
- include/ufs
- man
- second
- second/fs
- silo
- tilo
- files removed:
- .bzr-builddeb
- debian/packages.d
- debian/scripts
- files modified:
- debian/changelog
added
removed
include/ufs/ufs_fs.h
1
/*
2
* linux/include/linux/ufs_fs.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
* Clean swab support by Fare <fare@tunes.org>
10
* just hope no one is using NNUUXXI on __?64 structure elements
11
* 64-bit clean thanks to Maciej W. Rozycki <macro@ds2.pg.gda.pl>
12
*
13
* 4.4BSD (FreeBSD) support added on February 1st 1998 by
14
* Niels Kristian Bech Jensen <nkbj@image.dk> partially based
15
* on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>.
16
*
17
* NeXTstep support added on February 5th 1998 by
18
* Niels Kristian Bech Jensen <nkbj@image.dk>.
19
*
20
* Write support by Daniel Pirkl <daniel.pirkl@email.cz>
21
*
22
* HP/UX hfs filesystem support added by
23
* Martin K. Petersen <mkp@mkp.net>, August 1999
24
*
25
* UFS2 (of FreeBSD 5.x) support added by
26
* Niraj Kumar <niraj17@iitbombay.org> , Jan 2004
27
*
28
*/
29
30
#ifndef __LINUX_UFS_FS_H
31
#define __LINUX_UFS_FS_H
32
33
#include <linux/types.h>
34
#include <linux/kernel.h>
35
#include <linux/stat.h>
36
#include <linux/fs.h>
37
38
#ifndef __KERNEL__
39
typedef __u64 __fs64;
40
typedef __u32 __fs32;
41
typedef __u16 __fs16;
42
#else
43
typedef __u64 __bitwise __fs64;
44
typedef __u32 __bitwise __fs32;
45
typedef __u16 __bitwise __fs16;
46
#endif
47
48
#include <ufs/ufs_fs_i.h>
49
#include <ufs/ufs_fs_sb.h>
50
51
#define UFS_BBLOCK 0
52
#define UFS_BBSIZE 8192
53
#define UFS_SBLOCK 8192
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#define UFS_SBSIZE 8192
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56
#define UFS_SECTOR_SIZE 512
57
#define UFS_SECTOR_BITS 9
58
#define UFS_MAGIC 0x00011954
59
#define UFS2_MAGIC 0x19540119
60
#define UFS_CIGAM 0x54190100 /* byteswapped MAGIC */
61
62
/* Copied from FreeBSD */
63
/*
64
* Each disk drive contains some number of filesystems.
65
* A filesystem consists of a number of cylinder groups.
66
* Each cylinder group has inodes and data.
67
*
68
* A filesystem is described by its super-block, which in turn
69
* describes the cylinder groups. The super-block is critical
70
* data and is replicated in each cylinder group to protect against
71
* catastrophic loss. This is done at `newfs' time and the critical
72
* super-block data does not change, so the copies need not be
73
* referenced further unless disaster strikes.
74
*
75
* For filesystem fs, the offsets of the various blocks of interest
76
* are given in the super block as:
77
* [fs->fs_sblkno] Super-block
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* [fs->fs_cblkno] Cylinder group block
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* [fs->fs_iblkno] Inode blocks
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* [fs->fs_dblkno] Data blocks
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* The beginning of cylinder group cg in fs, is given by
82
* the ``cgbase(fs, cg)'' macro.
83
*
84
* Depending on the architecture and the media, the superblock may
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* reside in any one of four places. For tiny media where every block
86
* counts, it is placed at the very front of the partition. Historically,
87
* UFS1 placed it 8K from the front to leave room for the disk label and
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* a small bootstrap. For UFS2 it got moved to 64K from the front to leave
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* room for the disk label and a bigger bootstrap, and for really piggy
90
* systems we check at 256K from the front if the first three fail. In
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* all cases the size of the superblock will be SBLOCKSIZE. All values are
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* given in byte-offset form, so they do not imply a sector size. The
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* SBLOCKSEARCH specifies the order in which the locations should be searched.
94
*/
95
#define SBLOCK_FLOPPY 0
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#define SBLOCK_UFS1 8192
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#define SBLOCK_UFS2 65536
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#define SBLOCK_PIGGY 262144
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#define SBLOCKSIZE 8192
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#define SBLOCKSEARCH \
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{ SBLOCK_UFS2, SBLOCK_UFS1, SBLOCK_FLOPPY, SBLOCK_PIGGY, -1 }
102
103
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/* HP specific MAGIC values */
105
106
#define UFS_MAGIC_LFN 0x00095014 /* fs supports filenames > 14 chars */
107
#define UFS_CIGAM_LFN 0x14500900 /* srahc 41 < semanelif stroppus sf */
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#define UFS_MAGIC_SEC 0x00612195 /* B1 security fs */
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#define UFS_CIGAM_SEC 0x95216100
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#define UFS_MAGIC_FEA 0x00195612 /* fs_featurebits supported */
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#define UFS_CIGAM_FEA 0x12561900
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#define UFS_MAGIC_4GB 0x05231994 /* fs > 4 GB && fs_featurebits */
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#define UFS_CIGAM_4GB 0x94192305
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/* Seems somebody at HP goofed here. B1 and lfs are both 0x2 !?! */
119
#define UFS_FSF_LFN 0x00000001 /* long file names */
120
#define UFS_FSF_B1 0x00000002 /* B1 security */
121
#define UFS_FSF_LFS 0x00000002 /* large files */
122
#define UFS_FSF_LUID 0x00000004 /* large UIDs */
123
124
/* End of HP stuff */
125
126
127
#define UFS_BSIZE 8192
128
#define UFS_MINBSIZE 4096
129
#define UFS_FSIZE 1024
130
#define UFS_MAXFRAG (UFS_BSIZE / UFS_FSIZE)
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#define UFS_NDADDR 12
133
#define UFS_NINDIR 3
134
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#define UFS_IND_BLOCK (UFS_NDADDR + 0)
136
#define UFS_DIND_BLOCK (UFS_NDADDR + 1)
137
#define UFS_TIND_BLOCK (UFS_NDADDR + 2)
138
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#define UFS_NDIR_FRAGMENT (UFS_NDADDR << uspi->s_fpbshift)
140
#define UFS_IND_FRAGMENT (UFS_IND_BLOCK << uspi->s_fpbshift)
141
#define UFS_DIND_FRAGMENT (UFS_DIND_BLOCK << uspi->s_fpbshift)
142
#define UFS_TIND_FRAGMENT (UFS_TIND_BLOCK << uspi->s_fpbshift)
143
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#define UFS_ROOTINO 2
145
#define UFS_FIRST_INO (UFS_ROOTINO + 1)
146
147
#define UFS_USEEFT ((__u16)65535)
148
149
#define UFS_FSOK 0x7c269d38
150
#define UFS_FSACTIVE ((__s8)0x00)
151
#define UFS_FSCLEAN ((__s8)0x01)
152
#define UFS_FSSTABLE ((__s8)0x02)
153
#define UFS_FSOSF1 ((__s8)0x03) /* is this correct for DEC OSF/1? */
154
#define UFS_FSBAD ((__s8)0xff)
155
156
/* From here to next blank line, s_flags for ufs_sb_info */
157
/* directory entry encoding */
158
#define UFS_DE_MASK 0x00000010 /* mask for the following */
159
#define UFS_DE_OLD 0x00000000
160
#define UFS_DE_44BSD 0x00000010
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/* uid encoding */
162
#define UFS_UID_MASK 0x00000060 /* mask for the following */
163
#define UFS_UID_OLD 0x00000000
164
#define UFS_UID_44BSD 0x00000020
165
#define UFS_UID_EFT 0x00000040
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/* superblock state encoding */
167
#define UFS_ST_MASK 0x00000700 /* mask for the following */
168
#define UFS_ST_OLD 0x00000000
169
#define UFS_ST_44BSD 0x00000100
170
#define UFS_ST_SUN 0x00000200
171
#define UFS_ST_SUNx86 0x00000400
172
/*cylinder group encoding */
173
#define UFS_CG_MASK 0x00003000 /* mask for the following */
174
#define UFS_CG_OLD 0x00000000
175
#define UFS_CG_44BSD 0x00002000
176
#define UFS_CG_SUN 0x00001000
177
/* filesystem type encoding */
178
#define UFS_TYPE_MASK 0x00010000 /* mask for the following */
179
#define UFS_TYPE_UFS1 0x00000000
180
#define UFS_TYPE_UFS2 0x00010000
181
182
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/* fs_inodefmt options */
184
#define UFS_42INODEFMT -1
185
#define UFS_44INODEFMT 2
186
187
/* mount options */
188
#define UFS_MOUNT_ONERROR 0x0000000F
189
#define UFS_MOUNT_ONERROR_PANIC 0x00000001
190
#define UFS_MOUNT_ONERROR_LOCK 0x00000002
191
#define UFS_MOUNT_ONERROR_UMOUNT 0x00000004
192
#define UFS_MOUNT_ONERROR_REPAIR 0x00000008
193
194
#define UFS_MOUNT_UFSTYPE 0x0000FFF0
195
#define UFS_MOUNT_UFSTYPE_OLD 0x00000010
196
#define UFS_MOUNT_UFSTYPE_44BSD 0x00000020
197
#define UFS_MOUNT_UFSTYPE_SUN 0x00000040
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#define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080
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#define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100
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#define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200
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#define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400
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#define UFS_MOUNT_UFSTYPE_HP 0x00000800
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#define UFS_MOUNT_UFSTYPE_UFS2 0x00001000
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#define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt
206
#define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt
207
#define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt)
208
209
/*
210
* MINFREE gives the minimum acceptable percentage of file system
211
* blocks which may be free. If the freelist drops below this level
212
* only the superuser may continue to allocate blocks. This may
213
* be set to 0 if no reserve of free blocks is deemed necessary,
214
* however throughput drops by fifty percent if the file system
215
* is run at between 95% and 100% full; thus the minimum default
216
* value of fs_minfree is 5%. However, to get good clustering
217
* performance, 10% is a better choice. hence we use 10% as our
218
* default value. With 10% free space, fragmentation is not a
219
* problem, so we choose to optimize for time.
220
*/
221
#define UFS_MINFREE 5
222
#define UFS_DEFAULTOPT UFS_OPTTIME
223
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/*
225
* Debug code
226
*/
227
#ifdef CONFIG_UFS_DEBUG
228
# define UFSD(f, a...) { \
229
printk ("UFSD (%s, %d): %s:", \
230
__FILE__, __LINE__, __FUNCTION__); \
231
printk (f, ## a); \
232
}
233
#else
234
# define UFSD(f, a...) /**/
235
#endif
236
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/*
238
* Turn file system block numbers into disk block addresses.
239
* This maps file system blocks to device size blocks.
240
*/
241
#define ufs_fsbtodb(uspi, b) ((b) << (uspi)->s_fsbtodb)
242
#define ufs_dbtofsb(uspi, b) ((b) >> (uspi)->s_fsbtodb)
243
244
/*
245
* Cylinder group macros to locate things in cylinder groups.
246
* They calc file system addresses of cylinder group data structures.
247
*/
248
#define ufs_cgbase(c) (uspi->s_fpg * (c))
249
#define ufs_cgstart(c) ((uspi)->fs_magic == UFS2_MAGIC ? ufs_cgbase(c) : \
250
(ufs_cgbase(c) + uspi->s_cgoffset * ((c) & ~uspi->s_cgmask)))
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#define ufs_cgsblock(c) (ufs_cgstart(c) + uspi->s_sblkno) /* super blk */
252
#define ufs_cgcmin(c) (ufs_cgstart(c) + uspi->s_cblkno) /* cg block */
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#define ufs_cgimin(c) (ufs_cgstart(c) + uspi->s_iblkno) /* inode blk */
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#define ufs_cgdmin(c) (ufs_cgstart(c) + uspi->s_dblkno) /* 1st data */
255
256
/*
257
* Macros for handling inode numbers:
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* inode number to file system block offset.
259
* inode number to cylinder group number.
260
* inode number to file system block address.
261
*/
262
#define ufs_inotocg(x) ((x) / uspi->s_ipg)
263
#define ufs_inotocgoff(x) ((x) % uspi->s_ipg)
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#define ufs_inotofsba(x) (ufs_cgimin(ufs_inotocg(x)) + ufs_inotocgoff(x) / uspi->s_inopf)
265
#define ufs_inotofsbo(x) ((x) % uspi->s_inopf)
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267
/*
268
* Give cylinder group number for a file system block.
269
* Give cylinder group block number for a file system block.
270
*/
271
#define ufs_dtog(d) ((d) / uspi->s_fpg)
272
#define ufs_dtogd(d) ((d) % uspi->s_fpg)
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274
/*
275
* Compute the cylinder and rotational position of a cyl block addr.
276
*/
277
#define ufs_cbtocylno(bno) \
278
((bno) * uspi->s_nspf / uspi->s_spc)
279
#define ufs_cbtorpos(bno) \
280
((((bno) * uspi->s_nspf % uspi->s_spc / uspi->s_nsect \
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* uspi->s_trackskew + (bno) * uspi->s_nspf % uspi->s_spc \
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% uspi->s_nsect * uspi->s_interleave) % uspi->s_nsect \
283
* uspi->s_nrpos) / uspi->s_npsect)
284
285
/*
286
* The following macros optimize certain frequently calculated
287
* quantities by using shifts and masks in place of divisions
288
* modulos and multiplications.
289
*/
290
#define ufs_blkoff(loc) ((loc) & uspi->s_qbmask)
291
#define ufs_fragoff(loc) ((loc) & uspi->s_qfmask)
292
#define ufs_lblktosize(blk) ((blk) << uspi->s_bshift)
293
#define ufs_lblkno(loc) ((loc) >> uspi->s_bshift)
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#define ufs_numfrags(loc) ((loc) >> uspi->s_fshift)
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#define ufs_blkroundup(size) (((size) + uspi->s_qbmask) & uspi->s_bmask)
296
#define ufs_fragroundup(size) (((size) + uspi->s_qfmask) & uspi->s_fmask)
297
#define ufs_fragstoblks(frags) ((frags) >> uspi->s_fpbshift)
298
#define ufs_blkstofrags(blks) ((blks) << uspi->s_fpbshift)
299
#define ufs_fragnum(fsb) ((fsb) & uspi->s_fpbmask)
300
#define ufs_blknum(fsb) ((fsb) & ~uspi->s_fpbmask)
301
302
#define UFS_MAXNAMLEN 255
303
#define UFS_MAXMNTLEN 512
304
#define UFS2_MAXMNTLEN 468
305
#define UFS2_MAXVOLLEN 32
306
/* #define UFS_MAXCSBUFS 31 */
307
#define UFS_LINK_MAX 32000
308
/*
309
#define UFS2_NOCSPTRS ((128 / sizeof(void *)) - 4)
310
*/
311
#define UFS2_NOCSPTRS 28
312
313
/*
314
* UFS_DIR_PAD defines the directory entries boundaries
315
* (must be a multiple of 4)
316
*/
317
#define UFS_DIR_PAD 4
318
#define UFS_DIR_ROUND (UFS_DIR_PAD - 1)
319
#define UFS_DIR_REC_LEN(name_len) (((name_len) + 1 + 8 + UFS_DIR_ROUND) & ~UFS_DIR_ROUND)
320
321
struct ufs_timeval {
322
__fs32 tv_sec;
323
__fs32 tv_usec;
324
};
325
326
struct ufs_dir_entry {
327
__fs32 d_ino; /* inode number of this entry */
328
__fs16 d_reclen; /* length of this entry */
329
union {
330
__fs16 d_namlen; /* actual length of d_name */
331
struct {
332
__u8 d_type; /* file type */
333
__u8 d_namlen; /* length of string in d_name */
334
} d_44;
335
} d_u;
336
__u8 d_name[UFS_MAXNAMLEN + 1]; /* file name */
337
};
338
339
struct ufs_csum {
340
__fs32 cs_ndir; /* number of directories */
341
__fs32 cs_nbfree; /* number of free blocks */
342
__fs32 cs_nifree; /* number of free inodes */
343
__fs32 cs_nffree; /* number of free frags */
344
};
345
struct ufs2_csum_total {
346
__fs64 cs_ndir; /* number of directories */
347
__fs64 cs_nbfree; /* number of free blocks */
348
__fs64 cs_nifree; /* number of free inodes */
349
__fs64 cs_nffree; /* number of free frags */
350
__fs64 cs_numclusters; /* number of free clusters */
351
__fs64 cs_spare[3]; /* future expansion */
352
};
353
354
struct ufs_csum_core {
355
__u64 cs_ndir; /* number of directories */
356
__u64 cs_nbfree; /* number of free blocks */
357
__u64 cs_nifree; /* number of free inodes */
358
__u64 cs_nffree; /* number of free frags */
359
__u64 cs_numclusters; /* number of free clusters */
360
};
361
362
/*
363
* File system flags
364
*/
365
#define UFS_UNCLEAN 0x01 /* file system not clean at mount (unused) */
366
#define UFS_DOSOFTDEP 0x02 /* file system using soft dependencies */
367
#define UFS_NEEDSFSCK 0x04 /* needs sync fsck (FreeBSD compat, unused) */
368
#define UFS_INDEXDIRS 0x08 /* kernel supports indexed directories */
369
#define UFS_ACLS 0x10 /* file system has ACLs enabled */
370
#define UFS_MULTILABEL 0x20 /* file system is MAC multi-label */
371
#define UFS_FLAGS_UPDATED 0x80 /* flags have been moved to new location */
372
373
#if 0
374
/*
375
* This is the actual superblock, as it is laid out on the disk.
376
* Do NOT use this structure, because of sizeof(ufs_super_block) > 512 and
377
* it may occupy several blocks, use
378
* struct ufs_super_block_(first,second,third) instead.
379
*/
380
struct ufs_super_block {
381
__fs32 fs_link; /* UNUSED */
382
__fs32 fs_rlink; /* UNUSED */
383
__fs32 fs_sblkno; /* addr of super-block in filesys */
384
__fs32 fs_cblkno; /* offset of cyl-block in filesys */
385
__fs32 fs_iblkno; /* offset of inode-blocks in filesys */
386
__fs32 fs_dblkno; /* offset of first data after cg */
387
__fs32 fs_cgoffset; /* cylinder group offset in cylinder */
388
__fs32 fs_cgmask; /* used to calc mod fs_ntrak */
389
__fs32 fs_time; /* last time written -- time_t */
390
__fs32 fs_size; /* number of blocks in fs */
391
__fs32 fs_dsize; /* number of data blocks in fs */
392
__fs32 fs_ncg; /* number of cylinder groups */
393
__fs32 fs_bsize; /* size of basic blocks in fs */
394
__fs32 fs_fsize; /* size of frag blocks in fs */
395
__fs32 fs_frag; /* number of frags in a block in fs */
396
/* these are configuration parameters */
397
__fs32 fs_minfree; /* minimum percentage of free blocks */
398
__fs32 fs_rotdelay; /* num of ms for optimal next block */
399
__fs32 fs_rps; /* disk revolutions per second */
400
/* these fields can be computed from the others */
401
__fs32 fs_bmask; /* ``blkoff'' calc of blk offsets */
402
__fs32 fs_fmask; /* ``fragoff'' calc of frag offsets */
403
__fs32 fs_bshift; /* ``lblkno'' calc of logical blkno */
404
__fs32 fs_fshift; /* ``numfrags'' calc number of frags */
405
/* these are configuration parameters */
406
__fs32 fs_maxcontig; /* max number of contiguous blks */
407
__fs32 fs_maxbpg; /* max number of blks per cyl group */
408
/* these fields can be computed from the others */
409
__fs32 fs_fragshift; /* block to frag shift */
410
__fs32 fs_fsbtodb; /* fsbtodb and dbtofsb shift constant */
411
__fs32 fs_sbsize; /* actual size of super block */
412
__fs32 fs_csmask; /* csum block offset */
413
__fs32 fs_csshift; /* csum block number */
414
__fs32 fs_nindir; /* value of NINDIR */
415
__fs32 fs_inopb; /* value of INOPB */
416
__fs32 fs_nspf; /* value of NSPF */
417
/* yet another configuration parameter */
418
__fs32 fs_optim; /* optimization preference, see below */
419
/* these fields are derived from the hardware */
420
union {
421
struct {
422
__fs32 fs_npsect; /* # sectors/track including spares */
423
} fs_sun;
424
struct {
425
__fs32 fs_state; /* file system state time stamp */
426
} fs_sunx86;
427
} fs_u1;
428
__fs32 fs_interleave; /* hardware sector interleave */
429
__fs32 fs_trackskew; /* sector 0 skew, per track */
430
/* a unique id for this filesystem (currently unused and unmaintained) */
431
/* In 4.3 Tahoe this space is used by fs_headswitch and fs_trkseek */
432
/* Neither of those fields is used in the Tahoe code right now but */
433
/* there could be problems if they are. */
434
__fs32 fs_id[2]; /* file system id */
435
/* sizes determined by number of cylinder groups and their sizes */
436
__fs32 fs_csaddr; /* blk addr of cyl grp summary area */
437
__fs32 fs_cssize; /* size of cyl grp summary area */
438
__fs32 fs_cgsize; /* cylinder group size */
439
/* these fields are derived from the hardware */
440
__fs32 fs_ntrak; /* tracks per cylinder */
441
__fs32 fs_nsect; /* sectors per track */
442
__fs32 fs_spc; /* sectors per cylinder */
443
/* this comes from the disk driver partitioning */
444
__fs32 fs_ncyl; /* cylinders in file system */
445
/* these fields can be computed from the others */
446
__fs32 fs_cpg; /* cylinders per group */
447
__fs32 fs_ipg; /* inodes per cylinder group */
448
__fs32 fs_fpg; /* blocks per group * fs_frag */
449
/* this data must be re-computed after crashes */
450
struct ufs_csum fs_cstotal; /* cylinder summary information */
451
/* these fields are cleared at mount time */
452
__s8 fs_fmod; /* super block modified flag */
453
__s8 fs_clean; /* file system is clean flag */
454
__s8 fs_ronly; /* mounted read-only flag */
455
__s8 fs_flags;
456
union {
457
struct {
458
__s8 fs_fsmnt[UFS_MAXMNTLEN];/* name mounted on */
459
__fs32 fs_cgrotor; /* last cg searched */
460
__fs32 fs_csp[UFS_MAXCSBUFS];/*list of fs_cs info buffers */
461
__fs32 fs_maxcluster;
462
__fs32 fs_cpc; /* cyl per cycle in postbl */
463
__fs16 fs_opostbl[16][8]; /* old rotation block list head */
464
} fs_u1;
465
struct {
466
__s8 fs_fsmnt[UFS2_MAXMNTLEN]; /* name mounted on */
467
__u8 fs_volname[UFS2_MAXVOLLEN]; /* volume name */
468
__fs64 fs_swuid; /* system-wide uid */
469
__fs32 fs_pad; /* due to alignment of fs_swuid */
470
__fs32 fs_cgrotor; /* last cg searched */
471
__fs32 fs_ocsp[UFS2_NOCSPTRS]; /*list of fs_cs info buffers */
472
__fs32 fs_contigdirs;/*# of contiguously allocated dirs */
473
__fs32 fs_csp; /* cg summary info buffer for fs_cs */
474
__fs32 fs_maxcluster;
475
__fs32 fs_active;/* used by snapshots to track fs */
476
__fs32 fs_old_cpc; /* cyl per cycle in postbl */
477
__fs32 fs_maxbsize;/*maximum blocking factor permitted */
478
__fs64 fs_sparecon64[17];/*old rotation block list head */
479
__fs64 fs_sblockloc; /* byte offset of standard superblock */
480
struct ufs2_csum_total fs_cstotal;/*cylinder summary information*/
481
struct ufs_timeval fs_time; /* last time written */
482
__fs64 fs_size; /* number of blocks in fs */
483
__fs64 fs_dsize; /* number of data blocks in fs */
484
__fs64 fs_csaddr; /* blk addr of cyl grp summary area */
485
__fs64 fs_pendingblocks;/* blocks in process of being freed */
486
__fs32 fs_pendinginodes;/*inodes in process of being freed */
487
} fs_u2;
488
} fs_u11;
489
union {
490
struct {
491
__fs32 fs_sparecon[53];/* reserved for future constants */
492
__fs32 fs_reclaim;
493
__fs32 fs_sparecon2[1];
494
__fs32 fs_state; /* file system state time stamp */
495
__fs32 fs_qbmask[2]; /* ~usb_bmask */
496
__fs32 fs_qfmask[2]; /* ~usb_fmask */
497
} fs_sun;
498
struct {
499
__fs32 fs_sparecon[53];/* reserved for future constants */
500
__fs32 fs_reclaim;
501
__fs32 fs_sparecon2[1];
502
__fs32 fs_npsect; /* # sectors/track including spares */
503
__fs32 fs_qbmask[2]; /* ~usb_bmask */
504
__fs32 fs_qfmask[2]; /* ~usb_fmask */
505
} fs_sunx86;
506
struct {
507
__fs32 fs_sparecon[50];/* reserved for future constants */
508
__fs32 fs_contigsumsize;/* size of cluster summary array */
509
__fs32 fs_maxsymlinklen;/* max length of an internal symlink */
510
__fs32 fs_inodefmt; /* format of on-disk inodes */
511
__fs32 fs_maxfilesize[2]; /* max representable file size */
512
__fs32 fs_qbmask[2]; /* ~usb_bmask */
513
__fs32 fs_qfmask[2]; /* ~usb_fmask */
514
__fs32 fs_state; /* file system state time stamp */
515
} fs_44;
516
} fs_u2;
517
__fs32 fs_postblformat; /* format of positional layout tables */
518
__fs32 fs_nrpos; /* number of rotational positions */
519
__fs32 fs_postbloff; /* (__s16) rotation block list head */
520
__fs32 fs_rotbloff; /* (__u8) blocks for each rotation */
521
__fs32 fs_magic; /* magic number */
522
__u8 fs_space[1]; /* list of blocks for each rotation */
523
};
524
#endif/*struct ufs_super_block*/
525
526
/*
527
* Preference for optimization.
528
*/
529
#define UFS_OPTTIME 0 /* minimize allocation time */
530
#define UFS_OPTSPACE 1 /* minimize disk fragmentation */
531
532
/*
533
* Rotational layout table format types
534
*/
535
#define UFS_42POSTBLFMT -1 /* 4.2BSD rotational table format */
536
#define UFS_DYNAMICPOSTBLFMT 1 /* dynamic rotational table format */
537
538
/*
539
* Convert cylinder group to base address of its global summary info.
540
*/
541
#define fs_cs(indx) s_csp[(indx)]
542
543
/*
544
* Cylinder group block for a file system.
545
*
546
* Writable fields in the cylinder group are protected by the associated
547
* super block lock fs->fs_lock.
548
*/
549
#define CG_MAGIC 0x090255
550
#define ufs_cg_chkmagic(sb, ucg) \
551
(fs32_to_cpu((sb), (ucg)->cg_magic) == CG_MAGIC)
552
553
/*
554
* size of this structure is 172 B
555
*/
556
struct ufs_cylinder_group {
557
__fs32 cg_link; /* linked list of cyl groups */
558
__fs32 cg_magic; /* magic number */
559
__fs32 cg_time; /* time last written */
560
__fs32 cg_cgx; /* we are the cgx'th cylinder group */
561
__fs16 cg_ncyl; /* number of cyl's this cg */
562
__fs16 cg_niblk; /* number of inode blocks this cg */
563
__fs32 cg_ndblk; /* number of data blocks this cg */
564
struct ufs_csum cg_cs; /* cylinder summary information */
565
__fs32 cg_rotor; /* position of last used block */
566
__fs32 cg_frotor; /* position of last used frag */
567
__fs32 cg_irotor; /* position of last used inode */
568
__fs32 cg_frsum[UFS_MAXFRAG]; /* counts of available frags */
569
__fs32 cg_btotoff; /* (__u32) block totals per cylinder */
570
__fs32 cg_boff; /* (short) free block positions */
571
__fs32 cg_iusedoff; /* (char) used inode map */
572
__fs32 cg_freeoff; /* (u_char) free block map */
573
__fs32 cg_nextfreeoff; /* (u_char) next available space */
574
union {
575
struct {
576
__fs32 cg_clustersumoff; /* (u_int32) counts of avail clusters */
577
__fs32 cg_clusteroff; /* (u_int8) free cluster map */
578
__fs32 cg_nclusterblks; /* number of clusters this cg */
579
__fs32 cg_sparecon[13]; /* reserved for future use */
580
} cg_44;
581
struct {
582
__fs32 cg_clustersumoff;/* (u_int32) counts of avail clusters */
583
__fs32 cg_clusteroff; /* (u_int8) free cluster map */
584
__fs32 cg_nclusterblks;/* number of clusters this cg */
585
__fs32 cg_niblk; /* number of inode blocks this cg */
586
__fs32 cg_initediblk; /* last initialized inode */
587
__fs32 cg_sparecon32[3];/* reserved for future use */
588
__fs64 cg_time; /* time last written */
589
__fs64 cg_sparecon[3]; /* reserved for future use */
590
} cg_u2;
591
__fs32 cg_sparecon[16]; /* reserved for future use */
592
} cg_u;
593
__u8 cg_space[1]; /* space for cylinder group maps */
594
/* actually longer */
595
};
596
597
/*
598
* structure of an on-disk inode
599
*/
600
struct ufs_inode {
601
__fs16 ui_mode; /* 0x0 */
602
__fs16 ui_nlink; /* 0x2 */
603
union {
604
struct {
605
__fs16 ui_suid; /* 0x4 */
606
__fs16 ui_sgid; /* 0x6 */
607
} oldids;
608
__fs32 ui_inumber; /* 0x4 lsf: inode number */
609
__fs32 ui_author; /* 0x4 GNU HURD: author */
610
} ui_u1;
611
__fs64 ui_size; /* 0x8 */
612
struct ufs_timeval ui_atime; /* 0x10 access */
613
struct ufs_timeval ui_mtime; /* 0x18 modification */
614
struct ufs_timeval ui_ctime; /* 0x20 creation */
615
union {
616
struct {
617
__fs32 ui_db[UFS_NDADDR];/* 0x28 data blocks */
618
__fs32 ui_ib[UFS_NINDIR];/* 0x58 indirect blocks */
619
} ui_addr;
620
__u8 ui_symlink[4*(UFS_NDADDR+UFS_NINDIR)];/* 0x28 fast symlink */
621
} ui_u2;
622
__fs32 ui_flags; /* 0x64 immutable, append-only... */
623
__fs32 ui_blocks; /* 0x68 blocks in use */
624
__fs32 ui_gen; /* 0x6c like ext2 i_version, for NFS support */
625
union {
626
struct {
627
__fs32 ui_shadow; /* 0x70 shadow inode with security data */
628
__fs32 ui_uid; /* 0x74 long EFT version of uid */
629
__fs32 ui_gid; /* 0x78 long EFT version of gid */
630
__fs32 ui_oeftflag; /* 0x7c reserved */
631
} ui_sun;
632
struct {
633
__fs32 ui_uid; /* 0x70 File owner */
634
__fs32 ui_gid; /* 0x74 File group */
635
__fs32 ui_spare[2]; /* 0x78 reserved */
636
} ui_44;
637
struct {
638
__fs32 ui_uid; /* 0x70 */
639
__fs32 ui_gid; /* 0x74 */
640
__fs16 ui_modeh; /* 0x78 mode high bits */
641
__fs16 ui_spare; /* 0x7A unused */
642
__fs32 ui_trans; /* 0x7c filesystem translator */
643
} ui_hurd;
644
} ui_u3;
645
};
646
647
#define UFS_NXADDR 2 /* External addresses in inode. */
648
struct ufs2_inode {
649
__fs16 ui_mode; /* 0: IFMT, permissions; see below. */
650
__fs16 ui_nlink; /* 2: File link count. */
651
__fs32 ui_uid; /* 4: File owner. */
652
__fs32 ui_gid; /* 8: File group. */
653
__fs32 ui_blksize; /* 12: Inode blocksize. */
654
__fs64 ui_size; /* 16: File byte count. */
655
__fs64 ui_blocks; /* 24: Bytes actually held. */
656
struct ufs_timeval ui_atime; /* 32: Last access time. */
657
struct ufs_timeval ui_mtime; /* 40: Last modified time. */
658
struct ufs_timeval ui_ctime; /* 48: Last inode change time. */
659
struct ufs_timeval ui_birthtime; /* 56: Inode creation time. */
660
__fs32 ui_mtimensec; /* 64: Last modified time. */
661
__fs32 ui_atimensec; /* 68: Last access time. */
662
__fs32 ui_ctimensec; /* 72: Last inode change time. */
663
__fs32 ui_birthnsec; /* 76: Inode creation time. */
664
__fs32 ui_gen; /* 80: Generation number. */
665
__fs32 ui_kernflags; /* 84: Kernel flags. */
666
__fs32 ui_flags; /* 88: Status flags (chflags). */
667
__fs32 ui_extsize; /* 92: External attributes block. */
668
__fs64 ui_extb[UFS_NXADDR];/* 96: External attributes block. */
669
union {
670
struct {
671
__fs64 ui_db[UFS_NDADDR]; /* 112: Direct disk blocks. */
672
__fs64 ui_ib[UFS_NINDIR];/* 208: Indirect disk blocks.*/
673
} ui_addr;
674
__u8 ui_symlink[2*4*(UFS_NDADDR+UFS_NINDIR)];/* 0x28 fast symlink */
675
} ui_u2;
676
__fs64 ui_spare[3]; /* 232: Reserved; currently unused */
677
};
678
679
680
/* FreeBSD has these in sys/stat.h */
681
/* ui_flags that can be set by a file owner */
682
#define UFS_UF_SETTABLE 0x0000ffff
683
#define UFS_UF_NODUMP 0x00000001 /* do not dump */
684
#define UFS_UF_IMMUTABLE 0x00000002 /* immutable (can't "change") */
685
#define UFS_UF_APPEND 0x00000004 /* append-only */
686
#define UFS_UF_OPAQUE 0x00000008 /* directory is opaque (unionfs) */
687
#define UFS_UF_NOUNLINK 0x00000010 /* can't be removed or renamed */
688
/* ui_flags that only root can set */
689
#define UFS_SF_SETTABLE 0xffff0000
690
#define UFS_SF_ARCHIVED 0x00010000 /* archived */
691
#define UFS_SF_IMMUTABLE 0x00020000 /* immutable (can't "change") */
692
#define UFS_SF_APPEND 0x00040000 /* append-only */
693
#define UFS_SF_NOUNLINK 0x00100000 /* can't be removed or renamed */
694
695
/*
696
* This structure is used for reading disk structures larger
697
* than the size of fragment.
698
*/
699
struct ufs_buffer_head {
700
__u64 fragment; /* first fragment */
701
__u64 count; /* number of fragments */
702
struct buffer_head * bh[UFS_MAXFRAG]; /* buffers */
703
};
704
705
struct ufs_cg_private_info {
706
struct ufs_buffer_head c_ubh;
707
__u32 c_cgx; /* number of cylidner group */
708
__u16 c_ncyl; /* number of cyl's this cg */
709
__u16 c_niblk; /* number of inode blocks this cg */
710
__u32 c_ndblk; /* number of data blocks this cg */
711
__u32 c_rotor; /* position of last used block */
712
__u32 c_frotor; /* position of last used frag */
713
__u32 c_irotor; /* position of last used inode */
714
__u32 c_btotoff; /* (__u32) block totals per cylinder */
715
__u32 c_boff; /* (short) free block positions */
716
__u32 c_iusedoff; /* (char) used inode map */
717
__u32 c_freeoff; /* (u_char) free block map */
718
__u32 c_nextfreeoff; /* (u_char) next available space */
719
__u32 c_clustersumoff;/* (u_int32) counts of avail clusters */
720
__u32 c_clusteroff; /* (u_int8) free cluster map */
721
__u32 c_nclusterblks; /* number of clusters this cg */
722
};
723
724
struct ufs_sb_private_info {
725
struct ufs_buffer_head s_ubh; /* buffer containing super block */
726
struct ufs_csum_core cs_total;
727
__u32 s_sblkno; /* offset of super-blocks in filesys */
728
__u32 s_cblkno; /* offset of cg-block in filesys */
729
__u32 s_iblkno; /* offset of inode-blocks in filesys */
730
__u32 s_dblkno; /* offset of first data after cg */
731
__u32 s_cgoffset; /* cylinder group offset in cylinder */
732
__u32 s_cgmask; /* used to calc mod fs_ntrak */
733
__u32 s_size; /* number of blocks (fragments) in fs */
734
__u32 s_dsize; /* number of data blocks in fs */
735
__u64 s_u2_size; /* ufs2: number of blocks (fragments) in fs */
736
__u64 s_u2_dsize; /*ufs2: number of data blocks in fs */
737
__u32 s_ncg; /* number of cylinder groups */
738
__u32 s_bsize; /* size of basic blocks */
739
__u32 s_fsize; /* size of fragments */
740
__u32 s_fpb; /* fragments per block */
741
__u32 s_minfree; /* minimum percentage of free blocks */
742
__u32 s_bmask; /* `blkoff'' calc of blk offsets */
743
__u32 s_fmask; /* s_fsize mask */
744
__u32 s_bshift; /* `lblkno'' calc of logical blkno */
745
__u32 s_fshift; /* s_fsize shift */
746
__u32 s_fpbshift; /* fragments per block shift */
747
__u32 s_fsbtodb; /* fsbtodb and dbtofsb shift constant */
748
__u32 s_sbsize; /* actual size of super block */
749
__u32 s_csmask; /* csum block offset */
750
__u32 s_csshift; /* csum block number */
751
__u32 s_nindir; /* value of NINDIR */
752
__u32 s_inopb; /* value of INOPB */
753
__u32 s_nspf; /* value of NSPF */
754
__u32 s_npsect; /* # sectors/track including spares */
755
__u32 s_interleave; /* hardware sector interleave */
756
__u32 s_trackskew; /* sector 0 skew, per track */
757
__u32 s_csaddr; /* blk addr of cyl grp summary area */
758
__u32 s_cssize; /* size of cyl grp summary area */
759
__u32 s_cgsize; /* cylinder group size */
760
__u32 s_ntrak; /* tracks per cylinder */
761
__u32 s_nsect; /* sectors per track */
762
__u32 s_spc; /* sectors per cylinder */
763
__u32 s_ipg; /* inodes per cylinder group */
764
__u32 s_fpg; /* fragments per group */
765
__u32 s_cpc; /* cyl per cycle in postbl */
766
__s32 s_contigsumsize;/* size of cluster summary array, 44bsd */
767
__s64 s_qbmask; /* ~usb_bmask */
768
__s64 s_qfmask; /* ~usb_fmask */
769
__s32 s_postblformat; /* format of positional layout tables */
770
__s32 s_nrpos; /* number of rotational positions */
771
__s32 s_postbloff; /* (__s16) rotation block list head */
772
__s32 s_rotbloff; /* (__u8) blocks for each rotation */
773
774
__u32 s_fpbmask; /* fragments per block mask */
775
__u32 s_apb; /* address per block */
776
__u32 s_2apb; /* address per block^2 */
777
__u32 s_3apb; /* address per block^3 */
778
__u32 s_apbmask; /* address per block mask */
779
__u32 s_apbshift; /* address per block shift */
780
__u32 s_2apbshift; /* address per block shift * 2 */
781
__u32 s_3apbshift; /* address per block shift * 3 */
782
__u32 s_nspfshift; /* number of sector per fragment shift */
783
__u32 s_nspb; /* number of sector per block */
784
__u32 s_inopf; /* inodes per fragment */
785
__u32 s_sbbase; /* offset of NeXTstep superblock */
786
__u32 s_bpf; /* bits per fragment */
787
__u32 s_bpfshift; /* bits per fragment shift*/
788
__u32 s_bpfmask; /* bits per fragment mask */
789
790
__u32 s_maxsymlinklen;/* upper limit on fast symlinks' size */
791
__s32 fs_magic; /* filesystem magic */
792
};
793
794
/*
795
* Sizes of this structures are:
796
* ufs_super_block_first 512
797
* ufs_super_block_second 512
798
* ufs_super_block_third 356
799
*/
800
struct ufs_super_block_first {
801
__fs32 fs_link;
802
__fs32 fs_rlink;
803
__fs32 fs_sblkno;
804
__fs32 fs_cblkno;
805
__fs32 fs_iblkno;
806
__fs32 fs_dblkno;
807
__fs32 fs_cgoffset;
808
__fs32 fs_cgmask;
809
__fs32 fs_time;
810
__fs32 fs_size;
811
__fs32 fs_dsize;
812
__fs32 fs_ncg;
813
__fs32 fs_bsize;
814
__fs32 fs_fsize;
815
__fs32 fs_frag;
816
__fs32 fs_minfree;
817
__fs32 fs_rotdelay;
818
__fs32 fs_rps;
819
__fs32 fs_bmask;
820
__fs32 fs_fmask;
821
__fs32 fs_bshift;
822
__fs32 fs_fshift;
823
__fs32 fs_maxcontig;
824
__fs32 fs_maxbpg;
825
__fs32 fs_fragshift;
826
__fs32 fs_fsbtodb;
827
__fs32 fs_sbsize;
828
__fs32 fs_csmask;
829
__fs32 fs_csshift;
830
__fs32 fs_nindir;
831
__fs32 fs_inopb;
832
__fs32 fs_nspf;
833
__fs32 fs_optim;
834
union {
835
struct {
836
__fs32 fs_npsect;
837
} fs_sun;
838
struct {
839
__fs32 fs_state;
840
} fs_sunx86;
841
} fs_u1;
842
__fs32 fs_interleave;
843
__fs32 fs_trackskew;
844
__fs32 fs_id[2];
845
__fs32 fs_csaddr;
846
__fs32 fs_cssize;
847
__fs32 fs_cgsize;
848
__fs32 fs_ntrak;
849
__fs32 fs_nsect;
850
__fs32 fs_spc;
851
__fs32 fs_ncyl;
852
__fs32 fs_cpg;
853
__fs32 fs_ipg;
854
__fs32 fs_fpg;
855
struct ufs_csum fs_cstotal;
856
__s8 fs_fmod;
857
__s8 fs_clean;
858
__s8 fs_ronly;
859
__s8 fs_flags;
860
__s8 fs_fsmnt[UFS_MAXMNTLEN - 212];
861
862
};
863
864
struct ufs_super_block_second {
865
union {
866
struct {
867
__s8 fs_fsmnt[212];
868
__fs32 fs_cgrotor;
869
__fs32 fs_csp[UFS_MAXCSBUFS];
870
__fs32 fs_maxcluster;
871
__fs32 fs_cpc;
872
__fs16 fs_opostbl[82];
873
} fs_u1;
874
struct {
875
__s8 fs_fsmnt[UFS2_MAXMNTLEN - UFS_MAXMNTLEN + 212];
876
__u8 fs_volname[UFS2_MAXVOLLEN];
877
__fs64 fs_swuid;
878
__fs32 fs_pad;
879
__fs32 fs_cgrotor;
880
__fs32 fs_ocsp[UFS2_NOCSPTRS];
881
__fs32 fs_contigdirs;
882
__fs32 fs_csp;
883
__fs32 fs_maxcluster;
884
__fs32 fs_active;
885
__fs32 fs_old_cpc;
886
__fs32 fs_maxbsize;
887
__fs64 fs_sparecon64[17];
888
__fs64 fs_sblockloc;
889
__fs64 cs_ndir;
890
__fs64 cs_nbfree;
891
} fs_u2;
892
} fs_un;
893
};
894
895
struct ufs_super_block_third {
896
union {
897
struct {
898
__fs16 fs_opostbl[46];
899
} fs_u1;
900
struct {
901
__fs64 cs_nifree; /* number of free inodes */
902
__fs64 cs_nffree; /* number of free frags */
903
__fs64 cs_numclusters; /* number of free clusters */
904
__fs64 cs_spare[3]; /* future expansion */
905
struct ufs_timeval fs_time; /* last time written */
906
__fs64 fs_size; /* number of blocks in fs */
907
__fs64 fs_dsize; /* number of data blocks in fs */
908
__fs64 fs_csaddr; /* blk addr of cyl grp summary area */
909
__fs64 fs_pendingblocks;/* blocks in process of being freed */
910
__fs32 fs_pendinginodes;/*inodes in process of being freed */
911
} __attribute__ ((packed)) fs_u2;
912
} fs_un1;
913
union {
914
struct {
915
__fs32 fs_sparecon[53];/* reserved for future constants */
916
__fs32 fs_reclaim;
917
__fs32 fs_sparecon2[1];
918
__fs32 fs_state; /* file system state time stamp */
919
__fs32 fs_qbmask[2]; /* ~usb_bmask */
920
__fs32 fs_qfmask[2]; /* ~usb_fmask */
921
} fs_sun;
922
struct {
923
__fs32 fs_sparecon[53];/* reserved for future constants */
924
__fs32 fs_reclaim;
925
__fs32 fs_sparecon2[1];
926
__fs32 fs_npsect; /* # sectors/track including spares */
927
__fs32 fs_qbmask[2]; /* ~usb_bmask */
928
__fs32 fs_qfmask[2]; /* ~usb_fmask */
929
} fs_sunx86;
930
struct {
931
__fs32 fs_sparecon[50];/* reserved for future constants */
932
__fs32 fs_contigsumsize;/* size of cluster summary array */
933
__fs32 fs_maxsymlinklen;/* max length of an internal symlink */
934
__fs32 fs_inodefmt; /* format of on-disk inodes */
935
__fs32 fs_maxfilesize[2]; /* max representable file size */
936
__fs32 fs_qbmask[2]; /* ~usb_bmask */
937
__fs32 fs_qfmask[2]; /* ~usb_fmask */
938
__fs32 fs_state; /* file system state time stamp */
939
} fs_44;
940
} fs_un2;
941
__fs32 fs_postblformat;
942
__fs32 fs_nrpos;
943
__fs32 fs_postbloff;
944
__fs32 fs_rotbloff;
945
__fs32 fs_magic;
946
__u8 fs_space[1];
947
};
948
949
#ifdef __KERNEL__
950
951
/* balloc.c */
952
extern void ufs_free_fragments (struct inode *, unsigned, unsigned);
953
extern void ufs_free_blocks (struct inode *, unsigned, unsigned);
954
extern unsigned ufs_new_fragments(struct inode *, __fs32 *, unsigned, unsigned,
955
unsigned, int *, struct page *);
956
957
/* cylinder.c */
958
extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
959
extern void ufs_put_cylinder (struct super_block *, unsigned);
960
961
/* dir.c */
962
extern struct inode_operations ufs_dir_inode_operations;
963
extern int ufs_add_link (struct dentry *, struct inode *);
964
extern ino_t ufs_inode_by_name(struct inode *, struct dentry *);
965
extern int ufs_make_empty(struct inode *, struct inode *);
966
extern struct ufs_dir_entry *ufs_find_entry(struct inode *, struct dentry *, struct page **);
967
extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *);
968
extern int ufs_empty_dir (struct inode *);
969
extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
970
extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
971
struct page *page, struct inode *inode);
972
973
/* file.c */
974
extern struct inode_operations ufs_file_inode_operations;
975
extern const struct file_operations ufs_file_operations;
976
977
extern const struct address_space_operations ufs_aops;
978
979
/* ialloc.c */
980
extern void ufs_free_inode (struct inode *inode);
981
extern struct inode * ufs_new_inode (struct inode *, int);
982
983
/* inode.c */
984
extern void ufs_read_inode (struct inode *);
985
extern void ufs_put_inode (struct inode *);
986
extern int ufs_write_inode (struct inode *, int);
987
extern int ufs_sync_inode (struct inode *);
988
extern void ufs_delete_inode (struct inode *);
989
extern struct buffer_head * ufs_bread (struct inode *, unsigned, int, int *);
990
extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create);
991
992
/* namei.c */
993
extern const struct file_operations ufs_dir_operations;
994
995
/* super.c */
996
extern void ufs_warning (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));
997
extern void ufs_error (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));
998
extern void ufs_panic (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));
999
1000
/* symlink.c */
1001
extern struct inode_operations ufs_fast_symlink_inode_operations;
1002
1003
/* truncate.c */
1004
extern int ufs_truncate (struct inode *, loff_t);
1005
1006
static inline struct ufs_sb_info *UFS_SB(struct super_block *sb)
1007
{
1008
return sb->s_fs_info;
1009
}
1010
1011
static inline struct ufs_inode_info *UFS_I(struct inode *inode)
1012
{
1013
return container_of(inode, struct ufs_inode_info, vfs_inode);
1014
}
1015
1016
#endif /* __KERNEL__ */
1017
1018
#endif /* __LINUX_UFS_FS_H */
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