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authorMike Frysinger <vapier@gentoo.org>2008-02-08 07:21:31 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-08 12:22:39 -0500
commite542059884bb6d651d7ffc64eacedbab2b64078c (patch)
tree336dc9a9b9fec99b9e744b2f754a27606e40eb49 /include
parentbdc807871d58285737d50dc6163d0feb72cb0dc2 (diff)
drop linux/ufs_fs.h from userspace export and relocate it to fs/ufs/ufs_fs.h
Per previous discussions about cleaning up ufs_fs.h, people just want this straight up dropped from userspace export. The only remaining consumer (silo) has been fixed a while ago to not rely on this header. This allows use to move it completely from include/linux/ to fs/ufs/ seeing as how the only in-kernel consumer is fs/ufs/. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Jan Kara <jack@ucw.cz> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/Kbuild1
-rw-r--r--include/linux/ufs_fs.h953
2 files changed, 0 insertions, 954 deletions
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 2ebf068ba504..5cae9b5960ea 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -338,7 +338,6 @@ unifdef-y += tty.h
338unifdef-y += types.h 338unifdef-y += types.h
339unifdef-y += udf_fs_i.h 339unifdef-y += udf_fs_i.h
340unifdef-y += udp.h 340unifdef-y += udp.h
341unifdef-y += ufs_fs.h
342unifdef-y += uinput.h 341unifdef-y += uinput.h
343unifdef-y += uio.h 342unifdef-y += uio.h
344unifdef-y += unistd.h 343unifdef-y += unistd.h
diff --git a/include/linux/ufs_fs.h b/include/linux/ufs_fs.h
deleted file mode 100644
index 10b854d3561f..000000000000
--- a/include/linux/ufs_fs.h
+++ /dev/null
@@ -1,953 +0,0 @@
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__
39typedef __u64 __fs64;
40typedef __u32 __fs32;
41typedef __u16 __fs16;
42#else
43#include <asm/div64.h>
44typedef __u64 __bitwise __fs64;
45typedef __u32 __bitwise __fs32;
46typedef __u16 __bitwise __fs16;
47#endif
48
49#define UFS_BBLOCK 0
50#define UFS_BBSIZE 8192
51#define UFS_SBLOCK 8192
52#define UFS_SBSIZE 8192
53
54#define UFS_SECTOR_SIZE 512
55#define UFS_SECTOR_BITS 9
56#define UFS_MAGIC 0x00011954
57#define UFS2_MAGIC 0x19540119
58#define UFS_CIGAM 0x54190100 /* byteswapped MAGIC */
59
60/* Copied from FreeBSD */
61/*
62 * Each disk drive contains some number of filesystems.
63 * A filesystem consists of a number of cylinder groups.
64 * Each cylinder group has inodes and data.
65 *
66 * A filesystem is described by its super-block, which in turn
67 * describes the cylinder groups. The super-block is critical
68 * data and is replicated in each cylinder group to protect against
69 * catastrophic loss. This is done at `newfs' time and the critical
70 * super-block data does not change, so the copies need not be
71 * referenced further unless disaster strikes.
72 *
73 * For filesystem fs, the offsets of the various blocks of interest
74 * are given in the super block as:
75 * [fs->fs_sblkno] Super-block
76 * [fs->fs_cblkno] Cylinder group block
77 * [fs->fs_iblkno] Inode blocks
78 * [fs->fs_dblkno] Data blocks
79 * The beginning of cylinder group cg in fs, is given by
80 * the ``cgbase(fs, cg)'' macro.
81 *
82 * Depending on the architecture and the media, the superblock may
83 * reside in any one of four places. For tiny media where every block
84 * counts, it is placed at the very front of the partition. Historically,
85 * UFS1 placed it 8K from the front to leave room for the disk label and
86 * a small bootstrap. For UFS2 it got moved to 64K from the front to leave
87 * room for the disk label and a bigger bootstrap, and for really piggy
88 * systems we check at 256K from the front if the first three fail. In
89 * all cases the size of the superblock will be SBLOCKSIZE. All values are
90 * given in byte-offset form, so they do not imply a sector size. The
91 * SBLOCKSEARCH specifies the order in which the locations should be searched.
92 */
93#define SBLOCK_FLOPPY 0
94#define SBLOCK_UFS1 8192
95#define SBLOCK_UFS2 65536
96#define SBLOCK_PIGGY 262144
97#define SBLOCKSIZE 8192
98#define SBLOCKSEARCH \
99 { SBLOCK_UFS2, SBLOCK_UFS1, SBLOCK_FLOPPY, SBLOCK_PIGGY, -1 }
100
101
102/* HP specific MAGIC values */
103
104#define UFS_MAGIC_LFN 0x00095014 /* fs supports filenames > 14 chars */
105#define UFS_CIGAM_LFN 0x14500900 /* srahc 41 < semanelif stroppus sf */
106
107#define UFS_MAGIC_SEC 0x00612195 /* B1 security fs */
108#define UFS_CIGAM_SEC 0x95216100
109
110#define UFS_MAGIC_FEA 0x00195612 /* fs_featurebits supported */
111#define UFS_CIGAM_FEA 0x12561900
112
113#define UFS_MAGIC_4GB 0x05231994 /* fs > 4 GB && fs_featurebits */
114#define UFS_CIGAM_4GB 0x94192305
115
116/* Seems somebody at HP goofed here. B1 and lfs are both 0x2 !?! */
117#define UFS_FSF_LFN 0x00000001 /* long file names */
118#define UFS_FSF_B1 0x00000002 /* B1 security */
119#define UFS_FSF_LFS 0x00000002 /* large files */
120#define UFS_FSF_LUID 0x00000004 /* large UIDs */
121
122/* End of HP stuff */
123
124
125#define UFS_BSIZE 8192
126#define UFS_MINBSIZE 4096
127#define UFS_FSIZE 1024
128#define UFS_MAXFRAG (UFS_BSIZE / UFS_FSIZE)
129
130#define UFS_NDADDR 12
131#define UFS_NINDIR 3
132
133#define UFS_IND_BLOCK (UFS_NDADDR + 0)
134#define UFS_DIND_BLOCK (UFS_NDADDR + 1)
135#define UFS_TIND_BLOCK (UFS_NDADDR + 2)
136
137#define UFS_NDIR_FRAGMENT (UFS_NDADDR << uspi->s_fpbshift)
138#define UFS_IND_FRAGMENT (UFS_IND_BLOCK << uspi->s_fpbshift)
139#define UFS_DIND_FRAGMENT (UFS_DIND_BLOCK << uspi->s_fpbshift)
140#define UFS_TIND_FRAGMENT (UFS_TIND_BLOCK << uspi->s_fpbshift)
141
142#define UFS_ROOTINO 2
143#define UFS_FIRST_INO (UFS_ROOTINO + 1)
144
145#define UFS_USEEFT ((__u16)65535)
146
147#define UFS_FSOK 0x7c269d38
148#define UFS_FSACTIVE ((__s8)0x00)
149#define UFS_FSCLEAN ((__s8)0x01)
150#define UFS_FSSTABLE ((__s8)0x02)
151#define UFS_FSOSF1 ((__s8)0x03) /* is this correct for DEC OSF/1? */
152#define UFS_FSBAD ((__s8)0xff)
153
154/* From here to next blank line, s_flags for ufs_sb_info */
155/* directory entry encoding */
156#define UFS_DE_MASK 0x00000010 /* mask for the following */
157#define UFS_DE_OLD 0x00000000
158#define UFS_DE_44BSD 0x00000010
159/* uid encoding */
160#define UFS_UID_MASK 0x00000060 /* mask for the following */
161#define UFS_UID_OLD 0x00000000
162#define UFS_UID_44BSD 0x00000020
163#define UFS_UID_EFT 0x00000040
164/* superblock state encoding */
165#define UFS_ST_MASK 0x00000700 /* mask for the following */
166#define UFS_ST_OLD 0x00000000
167#define UFS_ST_44BSD 0x00000100
168#define UFS_ST_SUN 0x00000200 /* Solaris */
169#define UFS_ST_SUNOS 0x00000300
170#define UFS_ST_SUNx86 0x00000400 /* Solaris x86 */
171/*cylinder group encoding */
172#define UFS_CG_MASK 0x00003000 /* mask for the following */
173#define UFS_CG_OLD 0x00000000
174#define UFS_CG_44BSD 0x00002000
175#define UFS_CG_SUN 0x00001000
176/* filesystem type encoding */
177#define UFS_TYPE_MASK 0x00010000 /* mask for the following */
178#define UFS_TYPE_UFS1 0x00000000
179#define UFS_TYPE_UFS2 0x00010000
180
181
182/* fs_inodefmt options */
183#define UFS_42INODEFMT -1
184#define UFS_44INODEFMT 2
185
186/*
187 * MINFREE gives the minimum acceptable percentage of file system
188 * blocks which may be free. If the freelist drops below this level
189 * only the superuser may continue to allocate blocks. This may
190 * be set to 0 if no reserve of free blocks is deemed necessary,
191 * however throughput drops by fifty percent if the file system
192 * is run at between 95% and 100% full; thus the minimum default
193 * value of fs_minfree is 5%. However, to get good clustering
194 * performance, 10% is a better choice. hence we use 10% as our
195 * default value. With 10% free space, fragmentation is not a
196 * problem, so we choose to optimize for time.
197 */
198#define UFS_MINFREE 5
199#define UFS_DEFAULTOPT UFS_OPTTIME
200
201/*
202 * Turn file system block numbers into disk block addresses.
203 * This maps file system blocks to device size blocks.
204 */
205#define ufs_fsbtodb(uspi, b) ((b) << (uspi)->s_fsbtodb)
206#define ufs_dbtofsb(uspi, b) ((b) >> (uspi)->s_fsbtodb)
207
208/*
209 * Cylinder group macros to locate things in cylinder groups.
210 * They calc file system addresses of cylinder group data structures.
211 */
212#define ufs_cgbase(c) (uspi->s_fpg * (c))
213#define ufs_cgstart(c) ((uspi)->fs_magic == UFS2_MAGIC ? ufs_cgbase(c) : \
214 (ufs_cgbase(c) + uspi->s_cgoffset * ((c) & ~uspi->s_cgmask)))
215#define ufs_cgsblock(c) (ufs_cgstart(c) + uspi->s_sblkno) /* super blk */
216#define ufs_cgcmin(c) (ufs_cgstart(c) + uspi->s_cblkno) /* cg block */
217#define ufs_cgimin(c) (ufs_cgstart(c) + uspi->s_iblkno) /* inode blk */
218#define ufs_cgdmin(c) (ufs_cgstart(c) + uspi->s_dblkno) /* 1st data */
219
220/*
221 * Macros for handling inode numbers:
222 * inode number to file system block offset.
223 * inode number to cylinder group number.
224 * inode number to file system block address.
225 */
226#define ufs_inotocg(x) ((x) / uspi->s_ipg)
227#define ufs_inotocgoff(x) ((x) % uspi->s_ipg)
228#define ufs_inotofsba(x) (((u64)ufs_cgimin(ufs_inotocg(x))) + ufs_inotocgoff(x) / uspi->s_inopf)
229#define ufs_inotofsbo(x) ((x) % uspi->s_inopf)
230
231/*
232 * Compute the cylinder and rotational position of a cyl block addr.
233 */
234#define ufs_cbtocylno(bno) \
235 ((bno) * uspi->s_nspf / uspi->s_spc)
236#define ufs_cbtorpos(bno) \
237 ((((bno) * uspi->s_nspf % uspi->s_spc / uspi->s_nsect \
238 * uspi->s_trackskew + (bno) * uspi->s_nspf % uspi->s_spc \
239 % uspi->s_nsect * uspi->s_interleave) % uspi->s_nsect \
240 * uspi->s_nrpos) / uspi->s_npsect)
241
242/*
243 * The following macros optimize certain frequently calculated
244 * quantities by using shifts and masks in place of divisions
245 * modulos and multiplications.
246 */
247#define ufs_blkoff(loc) ((loc) & uspi->s_qbmask)
248#define ufs_fragoff(loc) ((loc) & uspi->s_qfmask)
249#define ufs_lblktosize(blk) ((blk) << uspi->s_bshift)
250#define ufs_lblkno(loc) ((loc) >> uspi->s_bshift)
251#define ufs_numfrags(loc) ((loc) >> uspi->s_fshift)
252#define ufs_blkroundup(size) (((size) + uspi->s_qbmask) & uspi->s_bmask)
253#define ufs_fragroundup(size) (((size) + uspi->s_qfmask) & uspi->s_fmask)
254#define ufs_fragstoblks(frags) ((frags) >> uspi->s_fpbshift)
255#define ufs_blkstofrags(blks) ((blks) << uspi->s_fpbshift)
256#define ufs_fragnum(fsb) ((fsb) & uspi->s_fpbmask)
257#define ufs_blknum(fsb) ((fsb) & ~uspi->s_fpbmask)
258
259#define UFS_MAXNAMLEN 255
260#define UFS_MAXMNTLEN 512
261#define UFS2_MAXMNTLEN 468
262#define UFS2_MAXVOLLEN 32
263#define UFS_MAXCSBUFS 31
264#define UFS_LINK_MAX 32000
265/*
266#define UFS2_NOCSPTRS ((128 / sizeof(void *)) - 4)
267*/
268#define UFS2_NOCSPTRS 28
269
270/*
271 * UFS_DIR_PAD defines the directory entries boundaries
272 * (must be a multiple of 4)
273 */
274#define UFS_DIR_PAD 4
275#define UFS_DIR_ROUND (UFS_DIR_PAD - 1)
276#define UFS_DIR_REC_LEN(name_len) (((name_len) + 1 + 8 + UFS_DIR_ROUND) & ~UFS_DIR_ROUND)
277
278struct ufs_timeval {
279 __fs32 tv_sec;
280 __fs32 tv_usec;
281};
282
283struct ufs_dir_entry {
284 __fs32 d_ino; /* inode number of this entry */
285 __fs16 d_reclen; /* length of this entry */
286 union {
287 __fs16 d_namlen; /* actual length of d_name */
288 struct {
289 __u8 d_type; /* file type */
290 __u8 d_namlen; /* length of string in d_name */
291 } d_44;
292 } d_u;
293 __u8 d_name[UFS_MAXNAMLEN + 1]; /* file name */
294};
295
296struct ufs_csum {
297 __fs32 cs_ndir; /* number of directories */
298 __fs32 cs_nbfree; /* number of free blocks */
299 __fs32 cs_nifree; /* number of free inodes */
300 __fs32 cs_nffree; /* number of free frags */
301};
302struct ufs2_csum_total {
303 __fs64 cs_ndir; /* number of directories */
304 __fs64 cs_nbfree; /* number of free blocks */
305 __fs64 cs_nifree; /* number of free inodes */
306 __fs64 cs_nffree; /* number of free frags */
307 __fs64 cs_numclusters; /* number of free clusters */
308 __fs64 cs_spare[3]; /* future expansion */
309};
310
311struct ufs_csum_core {
312 __u64 cs_ndir; /* number of directories */
313 __u64 cs_nbfree; /* number of free blocks */
314 __u64 cs_nifree; /* number of free inodes */
315 __u64 cs_nffree; /* number of free frags */
316 __u64 cs_numclusters; /* number of free clusters */
317};
318
319/*
320 * File system flags
321 */
322#define UFS_UNCLEAN 0x01 /* file system not clean at mount (unused) */
323#define UFS_DOSOFTDEP 0x02 /* file system using soft dependencies */
324#define UFS_NEEDSFSCK 0x04 /* needs sync fsck (FreeBSD compat, unused) */
325#define UFS_INDEXDIRS 0x08 /* kernel supports indexed directories */
326#define UFS_ACLS 0x10 /* file system has ACLs enabled */
327#define UFS_MULTILABEL 0x20 /* file system is MAC multi-label */
328#define UFS_FLAGS_UPDATED 0x80 /* flags have been moved to new location */
329
330#if 0
331/*
332 * This is the actual superblock, as it is laid out on the disk.
333 * Do NOT use this structure, because of sizeof(ufs_super_block) > 512 and
334 * it may occupy several blocks, use
335 * struct ufs_super_block_(first,second,third) instead.
336 */
337struct ufs_super_block {
338 union {
339 struct {
340 __fs32 fs_link; /* UNUSED */
341 } fs_42;
342 struct {
343 __fs32 fs_state; /* file system state flag */
344 } fs_sun;
345 } fs_u0;
346 __fs32 fs_rlink; /* UNUSED */
347 __fs32 fs_sblkno; /* addr of super-block in filesys */
348 __fs32 fs_cblkno; /* offset of cyl-block in filesys */
349 __fs32 fs_iblkno; /* offset of inode-blocks in filesys */
350 __fs32 fs_dblkno; /* offset of first data after cg */
351 __fs32 fs_cgoffset; /* cylinder group offset in cylinder */
352 __fs32 fs_cgmask; /* used to calc mod fs_ntrak */
353 __fs32 fs_time; /* last time written -- time_t */
354 __fs32 fs_size; /* number of blocks in fs */
355 __fs32 fs_dsize; /* number of data blocks in fs */
356 __fs32 fs_ncg; /* number of cylinder groups */
357 __fs32 fs_bsize; /* size of basic blocks in fs */
358 __fs32 fs_fsize; /* size of frag blocks in fs */
359 __fs32 fs_frag; /* number of frags in a block in fs */
360/* these are configuration parameters */
361 __fs32 fs_minfree; /* minimum percentage of free blocks */
362 __fs32 fs_rotdelay; /* num of ms for optimal next block */
363 __fs32 fs_rps; /* disk revolutions per second */
364/* these fields can be computed from the others */
365 __fs32 fs_bmask; /* ``blkoff'' calc of blk offsets */
366 __fs32 fs_fmask; /* ``fragoff'' calc of frag offsets */
367 __fs32 fs_bshift; /* ``lblkno'' calc of logical blkno */
368 __fs32 fs_fshift; /* ``numfrags'' calc number of frags */
369/* these are configuration parameters */
370 __fs32 fs_maxcontig; /* max number of contiguous blks */
371 __fs32 fs_maxbpg; /* max number of blks per cyl group */
372/* these fields can be computed from the others */
373 __fs32 fs_fragshift; /* block to frag shift */
374 __fs32 fs_fsbtodb; /* fsbtodb and dbtofsb shift constant */
375 __fs32 fs_sbsize; /* actual size of super block */
376 __fs32 fs_csmask; /* csum block offset */
377 __fs32 fs_csshift; /* csum block number */
378 __fs32 fs_nindir; /* value of NINDIR */
379 __fs32 fs_inopb; /* value of INOPB */
380 __fs32 fs_nspf; /* value of NSPF */
381/* yet another configuration parameter */
382 __fs32 fs_optim; /* optimization preference, see below */
383/* these fields are derived from the hardware */
384 union {
385 struct {
386 __fs32 fs_npsect; /* # sectors/track including spares */
387 } fs_sun;
388 struct {
389 __fs32 fs_state; /* file system state time stamp */
390 } fs_sunx86;
391 } fs_u1;
392 __fs32 fs_interleave; /* hardware sector interleave */
393 __fs32 fs_trackskew; /* sector 0 skew, per track */
394/* a unique id for this filesystem (currently unused and unmaintained) */
395/* In 4.3 Tahoe this space is used by fs_headswitch and fs_trkseek */
396/* Neither of those fields is used in the Tahoe code right now but */
397/* there could be problems if they are. */
398 __fs32 fs_id[2]; /* file system id */
399/* sizes determined by number of cylinder groups and their sizes */
400 __fs32 fs_csaddr; /* blk addr of cyl grp summary area */
401 __fs32 fs_cssize; /* size of cyl grp summary area */
402 __fs32 fs_cgsize; /* cylinder group size */
403/* these fields are derived from the hardware */
404 __fs32 fs_ntrak; /* tracks per cylinder */
405 __fs32 fs_nsect; /* sectors per track */
406 __fs32 fs_spc; /* sectors per cylinder */
407/* this comes from the disk driver partitioning */
408 __fs32 fs_ncyl; /* cylinders in file system */
409/* these fields can be computed from the others */
410 __fs32 fs_cpg; /* cylinders per group */
411 __fs32 fs_ipg; /* inodes per cylinder group */
412 __fs32 fs_fpg; /* blocks per group * fs_frag */
413/* this data must be re-computed after crashes */
414 struct ufs_csum fs_cstotal; /* cylinder summary information */
415/* these fields are cleared at mount time */
416 __s8 fs_fmod; /* super block modified flag */
417 __s8 fs_clean; /* file system is clean flag */
418 __s8 fs_ronly; /* mounted read-only flag */
419 __s8 fs_flags;
420 union {
421 struct {
422 __s8 fs_fsmnt[UFS_MAXMNTLEN];/* name mounted on */
423 __fs32 fs_cgrotor; /* last cg searched */
424 __fs32 fs_csp[UFS_MAXCSBUFS];/*list of fs_cs info buffers */
425 __fs32 fs_maxcluster;
426 __fs32 fs_cpc; /* cyl per cycle in postbl */
427 __fs16 fs_opostbl[16][8]; /* old rotation block list head */
428 } fs_u1;
429 struct {
430 __s8 fs_fsmnt[UFS2_MAXMNTLEN]; /* name mounted on */
431 __u8 fs_volname[UFS2_MAXVOLLEN]; /* volume name */
432 __fs64 fs_swuid; /* system-wide uid */
433 __fs32 fs_pad; /* due to alignment of fs_swuid */
434 __fs32 fs_cgrotor; /* last cg searched */
435 __fs32 fs_ocsp[UFS2_NOCSPTRS]; /*list of fs_cs info buffers */
436 __fs32 fs_contigdirs;/*# of contiguously allocated dirs */
437 __fs32 fs_csp; /* cg summary info buffer for fs_cs */
438 __fs32 fs_maxcluster;
439 __fs32 fs_active;/* used by snapshots to track fs */
440 __fs32 fs_old_cpc; /* cyl per cycle in postbl */
441 __fs32 fs_maxbsize;/*maximum blocking factor permitted */
442 __fs64 fs_sparecon64[17];/*old rotation block list head */
443 __fs64 fs_sblockloc; /* byte offset of standard superblock */
444 struct ufs2_csum_total fs_cstotal;/*cylinder summary information*/
445 struct ufs_timeval fs_time; /* last time written */
446 __fs64 fs_size; /* number of blocks in fs */
447 __fs64 fs_dsize; /* number of data blocks in fs */
448 __fs64 fs_csaddr; /* blk addr of cyl grp summary area */
449 __fs64 fs_pendingblocks;/* blocks in process of being freed */
450 __fs32 fs_pendinginodes;/*inodes in process of being freed */
451 } fs_u2;
452 } fs_u11;
453 union {
454 struct {
455 __fs32 fs_sparecon[53];/* reserved for future constants */
456 __fs32 fs_reclaim;
457 __fs32 fs_sparecon2[1];
458 __fs32 fs_state; /* file system state time stamp */
459 __fs32 fs_qbmask[2]; /* ~usb_bmask */
460 __fs32 fs_qfmask[2]; /* ~usb_fmask */
461 } fs_sun;
462 struct {
463 __fs32 fs_sparecon[53];/* reserved for future constants */
464 __fs32 fs_reclaim;
465 __fs32 fs_sparecon2[1];
466 __fs32 fs_npsect; /* # sectors/track including spares */
467 __fs32 fs_qbmask[2]; /* ~usb_bmask */
468 __fs32 fs_qfmask[2]; /* ~usb_fmask */
469 } fs_sunx86;
470 struct {
471 __fs32 fs_sparecon[50];/* reserved for future constants */
472 __fs32 fs_contigsumsize;/* size of cluster summary array */
473 __fs32 fs_maxsymlinklen;/* max length of an internal symlink */
474 __fs32 fs_inodefmt; /* format of on-disk inodes */
475 __fs32 fs_maxfilesize[2]; /* max representable file size */
476 __fs32 fs_qbmask[2]; /* ~usb_bmask */
477 __fs32 fs_qfmask[2]; /* ~usb_fmask */
478 __fs32 fs_state; /* file system state time stamp */
479 } fs_44;
480 } fs_u2;
481 __fs32 fs_postblformat; /* format of positional layout tables */
482 __fs32 fs_nrpos; /* number of rotational positions */
483 __fs32 fs_postbloff; /* (__s16) rotation block list head */
484 __fs32 fs_rotbloff; /* (__u8) blocks for each rotation */
485 __fs32 fs_magic; /* magic number */
486 __u8 fs_space[1]; /* list of blocks for each rotation */
487};
488#endif/*struct ufs_super_block*/
489
490/*
491 * Preference for optimization.
492 */
493#define UFS_OPTTIME 0 /* minimize allocation time */
494#define UFS_OPTSPACE 1 /* minimize disk fragmentation */
495
496/*
497 * Rotational layout table format types
498 */
499#define UFS_42POSTBLFMT -1 /* 4.2BSD rotational table format */
500#define UFS_DYNAMICPOSTBLFMT 1 /* dynamic rotational table format */
501
502/*
503 * Convert cylinder group to base address of its global summary info.
504 */
505#define fs_cs(indx) s_csp[(indx)]
506
507/*
508 * Cylinder group block for a file system.
509 *
510 * Writable fields in the cylinder group are protected by the associated
511 * super block lock fs->fs_lock.
512 */
513#define CG_MAGIC 0x090255
514#define ufs_cg_chkmagic(sb, ucg) \
515 (fs32_to_cpu((sb), (ucg)->cg_magic) == CG_MAGIC)
516/*
517 * Macros for access to old cylinder group array structures
518 */
519#define ufs_ocg_blktot(sb, ucg) fs32_to_cpu((sb), ((struct ufs_old_cylinder_group *)(ucg))->cg_btot)
520#define ufs_ocg_blks(sb, ucg, cylno) fs32_to_cpu((sb), ((struct ufs_old_cylinder_group *)(ucg))->cg_b[cylno])
521#define ufs_ocg_inosused(sb, ucg) fs32_to_cpu((sb), ((struct ufs_old_cylinder_group *)(ucg))->cg_iused)
522#define ufs_ocg_blksfree(sb, ucg) fs32_to_cpu((sb), ((struct ufs_old_cylinder_group *)(ucg))->cg_free)
523#define ufs_ocg_chkmagic(sb, ucg) \
524 (fs32_to_cpu((sb), ((struct ufs_old_cylinder_group *)(ucg))->cg_magic) == CG_MAGIC)
525
526/*
527 * size of this structure is 172 B
528 */
529struct ufs_cylinder_group {
530 __fs32 cg_link; /* linked list of cyl groups */
531 __fs32 cg_magic; /* magic number */
532 __fs32 cg_time; /* time last written */
533 __fs32 cg_cgx; /* we are the cgx'th cylinder group */
534 __fs16 cg_ncyl; /* number of cyl's this cg */
535 __fs16 cg_niblk; /* number of inode blocks this cg */
536 __fs32 cg_ndblk; /* number of data blocks this cg */
537 struct ufs_csum cg_cs; /* cylinder summary information */
538 __fs32 cg_rotor; /* position of last used block */
539 __fs32 cg_frotor; /* position of last used frag */
540 __fs32 cg_irotor; /* position of last used inode */
541 __fs32 cg_frsum[UFS_MAXFRAG]; /* counts of available frags */
542 __fs32 cg_btotoff; /* (__u32) block totals per cylinder */
543 __fs32 cg_boff; /* (short) free block positions */
544 __fs32 cg_iusedoff; /* (char) used inode map */
545 __fs32 cg_freeoff; /* (u_char) free block map */
546 __fs32 cg_nextfreeoff; /* (u_char) next available space */
547 union {
548 struct {
549 __fs32 cg_clustersumoff; /* (u_int32) counts of avail clusters */
550 __fs32 cg_clusteroff; /* (u_int8) free cluster map */
551 __fs32 cg_nclusterblks; /* number of clusters this cg */
552 __fs32 cg_sparecon[13]; /* reserved for future use */
553 } cg_44;
554 struct {
555 __fs32 cg_clustersumoff;/* (u_int32) counts of avail clusters */
556 __fs32 cg_clusteroff; /* (u_int8) free cluster map */
557 __fs32 cg_nclusterblks;/* number of clusters this cg */
558 __fs32 cg_niblk; /* number of inode blocks this cg */
559 __fs32 cg_initediblk; /* last initialized inode */
560 __fs32 cg_sparecon32[3];/* reserved for future use */
561 __fs64 cg_time; /* time last written */
562 __fs64 cg_sparecon[3]; /* reserved for future use */
563 } cg_u2;
564 __fs32 cg_sparecon[16]; /* reserved for future use */
565 } cg_u;
566 __u8 cg_space[1]; /* space for cylinder group maps */
567/* actually longer */
568};
569
570/* Historic Cylinder group info */
571struct ufs_old_cylinder_group {
572 __fs32 cg_link; /* linked list of cyl groups */
573 __fs32 cg_rlink; /* for incore cyl groups */
574 __fs32 cg_time; /* time last written */
575 __fs32 cg_cgx; /* we are the cgx'th cylinder group */
576 __fs16 cg_ncyl; /* number of cyl's this cg */
577 __fs16 cg_niblk; /* number of inode blocks this cg */
578 __fs32 cg_ndblk; /* number of data blocks this cg */
579 struct ufs_csum cg_cs; /* cylinder summary information */
580 __fs32 cg_rotor; /* position of last used block */
581 __fs32 cg_frotor; /* position of last used frag */
582 __fs32 cg_irotor; /* position of last used inode */
583 __fs32 cg_frsum[8]; /* counts of available frags */
584 __fs32 cg_btot[32]; /* block totals per cylinder */
585 __fs16 cg_b[32][8]; /* positions of free blocks */
586 __u8 cg_iused[256]; /* used inode map */
587 __fs32 cg_magic; /* magic number */
588 __u8 cg_free[1]; /* free block map */
589/* actually longer */
590};
591
592/*
593 * structure of an on-disk inode
594 */
595struct ufs_inode {
596 __fs16 ui_mode; /* 0x0 */
597 __fs16 ui_nlink; /* 0x2 */
598 union {
599 struct {
600 __fs16 ui_suid; /* 0x4 */
601 __fs16 ui_sgid; /* 0x6 */
602 } oldids;
603 __fs32 ui_inumber; /* 0x4 lsf: inode number */
604 __fs32 ui_author; /* 0x4 GNU HURD: author */
605 } ui_u1;
606 __fs64 ui_size; /* 0x8 */
607 struct ufs_timeval ui_atime; /* 0x10 access */
608 struct ufs_timeval ui_mtime; /* 0x18 modification */
609 struct ufs_timeval ui_ctime; /* 0x20 creation */
610 union {
611 struct {
612 __fs32 ui_db[UFS_NDADDR];/* 0x28 data blocks */
613 __fs32 ui_ib[UFS_NINDIR];/* 0x58 indirect blocks */
614 } ui_addr;
615 __u8 ui_symlink[4*(UFS_NDADDR+UFS_NINDIR)];/* 0x28 fast symlink */
616 } ui_u2;
617 __fs32 ui_flags; /* 0x64 immutable, append-only... */
618 __fs32 ui_blocks; /* 0x68 blocks in use */
619 __fs32 ui_gen; /* 0x6c like ext2 i_version, for NFS support */
620 union {
621 struct {
622 __fs32 ui_shadow; /* 0x70 shadow inode with security data */
623 __fs32 ui_uid; /* 0x74 long EFT version of uid */
624 __fs32 ui_gid; /* 0x78 long EFT version of gid */
625 __fs32 ui_oeftflag; /* 0x7c reserved */
626 } ui_sun;
627 struct {
628 __fs32 ui_uid; /* 0x70 File owner */
629 __fs32 ui_gid; /* 0x74 File group */
630 __fs32 ui_spare[2]; /* 0x78 reserved */
631 } ui_44;
632 struct {
633 __fs32 ui_uid; /* 0x70 */
634 __fs32 ui_gid; /* 0x74 */
635 __fs16 ui_modeh; /* 0x78 mode high bits */
636 __fs16 ui_spare; /* 0x7A unused */
637 __fs32 ui_trans; /* 0x7c filesystem translator */
638 } ui_hurd;
639 } ui_u3;
640};
641
642#define UFS_NXADDR 2 /* External addresses in inode. */
643struct ufs2_inode {
644 __fs16 ui_mode; /* 0: IFMT, permissions; see below. */
645 __fs16 ui_nlink; /* 2: File link count. */
646 __fs32 ui_uid; /* 4: File owner. */
647 __fs32 ui_gid; /* 8: File group. */
648 __fs32 ui_blksize; /* 12: Inode blocksize. */
649 __fs64 ui_size; /* 16: File byte count. */
650 __fs64 ui_blocks; /* 24: Bytes actually held. */
651 __fs64 ui_atime; /* 32: Last access time. */
652 __fs64 ui_mtime; /* 40: Last modified time. */
653 __fs64 ui_ctime; /* 48: Last inode change time. */
654 __fs64 ui_birthtime; /* 56: Inode creation time. */
655 __fs32 ui_mtimensec; /* 64: Last modified time. */
656 __fs32 ui_atimensec; /* 68: Last access time. */
657 __fs32 ui_ctimensec; /* 72: Last inode change time. */
658 __fs32 ui_birthnsec; /* 76: Inode creation time. */
659 __fs32 ui_gen; /* 80: Generation number. */
660 __fs32 ui_kernflags; /* 84: Kernel flags. */
661 __fs32 ui_flags; /* 88: Status flags (chflags). */
662 __fs32 ui_extsize; /* 92: External attributes block. */
663 __fs64 ui_extb[UFS_NXADDR];/* 96: External attributes block. */
664 union {
665 struct {
666 __fs64 ui_db[UFS_NDADDR]; /* 112: Direct disk blocks. */
667 __fs64 ui_ib[UFS_NINDIR];/* 208: Indirect disk blocks.*/
668 } ui_addr;
669 __u8 ui_symlink[2*4*(UFS_NDADDR+UFS_NINDIR)];/* 0x28 fast symlink */
670 } ui_u2;
671 __fs64 ui_spare[3]; /* 232: Reserved; currently unused */
672};
673
674
675/* FreeBSD has these in sys/stat.h */
676/* ui_flags that can be set by a file owner */
677#define UFS_UF_SETTABLE 0x0000ffff
678#define UFS_UF_NODUMP 0x00000001 /* do not dump */
679#define UFS_UF_IMMUTABLE 0x00000002 /* immutable (can't "change") */
680#define UFS_UF_APPEND 0x00000004 /* append-only */
681#define UFS_UF_OPAQUE 0x00000008 /* directory is opaque (unionfs) */
682#define UFS_UF_NOUNLINK 0x00000010 /* can't be removed or renamed */
683/* ui_flags that only root can set */
684#define UFS_SF_SETTABLE 0xffff0000
685#define UFS_SF_ARCHIVED 0x00010000 /* archived */
686#define UFS_SF_IMMUTABLE 0x00020000 /* immutable (can't "change") */
687#define UFS_SF_APPEND 0x00040000 /* append-only */
688#define UFS_SF_NOUNLINK 0x00100000 /* can't be removed or renamed */
689
690/*
691 * This structure is used for reading disk structures larger
692 * than the size of fragment.
693 */
694struct ufs_buffer_head {
695 __u64 fragment; /* first fragment */
696 __u64 count; /* number of fragments */
697 struct buffer_head * bh[UFS_MAXFRAG]; /* buffers */
698};
699
700struct ufs_cg_private_info {
701 struct ufs_buffer_head c_ubh;
702 __u32 c_cgx; /* number of cylidner group */
703 __u16 c_ncyl; /* number of cyl's this cg */
704 __u16 c_niblk; /* number of inode blocks this cg */
705 __u32 c_ndblk; /* number of data blocks this cg */
706 __u32 c_rotor; /* position of last used block */
707 __u32 c_frotor; /* position of last used frag */
708 __u32 c_irotor; /* position of last used inode */
709 __u32 c_btotoff; /* (__u32) block totals per cylinder */
710 __u32 c_boff; /* (short) free block positions */
711 __u32 c_iusedoff; /* (char) used inode map */
712 __u32 c_freeoff; /* (u_char) free block map */
713 __u32 c_nextfreeoff; /* (u_char) next available space */
714 __u32 c_clustersumoff;/* (u_int32) counts of avail clusters */
715 __u32 c_clusteroff; /* (u_int8) free cluster map */
716 __u32 c_nclusterblks; /* number of clusters this cg */
717};
718
719
720struct ufs_sb_private_info {
721 struct ufs_buffer_head s_ubh; /* buffer containing super block */
722 struct ufs_csum_core cs_total;
723 __u32 s_sblkno; /* offset of super-blocks in filesys */
724 __u32 s_cblkno; /* offset of cg-block in filesys */
725 __u32 s_iblkno; /* offset of inode-blocks in filesys */
726 __u32 s_dblkno; /* offset of first data after cg */
727 __u32 s_cgoffset; /* cylinder group offset in cylinder */
728 __u32 s_cgmask; /* used to calc mod fs_ntrak */
729 __u32 s_size; /* number of blocks (fragments) in fs */
730 __u32 s_dsize; /* number of data blocks in fs */
731 __u64 s_u2_size; /* ufs2: number of blocks (fragments) in fs */
732 __u64 s_u2_dsize; /*ufs2: number of data blocks in fs */
733 __u32 s_ncg; /* number of cylinder groups */
734 __u32 s_bsize; /* size of basic blocks */
735 __u32 s_fsize; /* size of fragments */
736 __u32 s_fpb; /* fragments per block */
737 __u32 s_minfree; /* minimum percentage of free blocks */
738 __u32 s_bmask; /* `blkoff'' calc of blk offsets */
739 __u32 s_fmask; /* s_fsize mask */
740 __u32 s_bshift; /* `lblkno'' calc of logical blkno */
741 __u32 s_fshift; /* s_fsize shift */
742 __u32 s_fpbshift; /* fragments per block shift */
743 __u32 s_fsbtodb; /* fsbtodb and dbtofsb shift constant */
744 __u32 s_sbsize; /* actual size of super block */
745 __u32 s_csmask; /* csum block offset */
746 __u32 s_csshift; /* csum block number */
747 __u32 s_nindir; /* value of NINDIR */
748 __u32 s_inopb; /* value of INOPB */
749 __u32 s_nspf; /* value of NSPF */
750 __u32 s_npsect; /* # sectors/track including spares */
751 __u32 s_interleave; /* hardware sector interleave */
752 __u32 s_trackskew; /* sector 0 skew, per track */
753 __u64 s_csaddr; /* blk addr of cyl grp summary area */
754 __u32 s_cssize; /* size of cyl grp summary area */
755 __u32 s_cgsize; /* cylinder group size */
756 __u32 s_ntrak; /* tracks per cylinder */
757 __u32 s_nsect; /* sectors per track */
758 __u32 s_spc; /* sectors per cylinder */
759 __u32 s_ipg; /* inodes per cylinder group */
760 __u32 s_fpg; /* fragments per group */
761 __u32 s_cpc; /* cyl per cycle in postbl */
762 __s32 s_contigsumsize;/* size of cluster summary array, 44bsd */
763 __s64 s_qbmask; /* ~usb_bmask */
764 __s64 s_qfmask; /* ~usb_fmask */
765 __s32 s_postblformat; /* format of positional layout tables */
766 __s32 s_nrpos; /* number of rotational positions */
767 __s32 s_postbloff; /* (__s16) rotation block list head */
768 __s32 s_rotbloff; /* (__u8) blocks for each rotation */
769
770 __u32 s_fpbmask; /* fragments per block mask */
771 __u32 s_apb; /* address per block */
772 __u32 s_2apb; /* address per block^2 */
773 __u32 s_3apb; /* address per block^3 */
774 __u32 s_apbmask; /* address per block mask */
775 __u32 s_apbshift; /* address per block shift */
776 __u32 s_2apbshift; /* address per block shift * 2 */
777 __u32 s_3apbshift; /* address per block shift * 3 */
778 __u32 s_nspfshift; /* number of sector per fragment shift */
779 __u32 s_nspb; /* number of sector per block */
780 __u32 s_inopf; /* inodes per fragment */
781 __u32 s_sbbase; /* offset of NeXTstep superblock */
782 __u32 s_bpf; /* bits per fragment */
783 __u32 s_bpfshift; /* bits per fragment shift*/
784 __u32 s_bpfmask; /* bits per fragment mask */
785
786 __u32 s_maxsymlinklen;/* upper limit on fast symlinks' size */
787 __s32 fs_magic; /* filesystem magic */
788 unsigned int s_dirblksize;
789};
790
791/*
792 * Sizes of this structures are:
793 * ufs_super_block_first 512
794 * ufs_super_block_second 512
795 * ufs_super_block_third 356
796 */
797struct ufs_super_block_first {
798 union {
799 struct {
800 __fs32 fs_link; /* UNUSED */
801 } fs_42;
802 struct {
803 __fs32 fs_state; /* file system state flag */
804 } fs_sun;
805 } fs_u0;
806 __fs32 fs_rlink;
807 __fs32 fs_sblkno;
808 __fs32 fs_cblkno;
809 __fs32 fs_iblkno;
810 __fs32 fs_dblkno;
811 __fs32 fs_cgoffset;
812 __fs32 fs_cgmask;
813 __fs32 fs_time;
814 __fs32 fs_size;
815 __fs32 fs_dsize;
816 __fs32 fs_ncg;
817 __fs32 fs_bsize;
818 __fs32 fs_fsize;
819 __fs32 fs_frag;
820 __fs32 fs_minfree;
821 __fs32 fs_rotdelay;
822 __fs32 fs_rps;
823 __fs32 fs_bmask;
824 __fs32 fs_fmask;
825 __fs32 fs_bshift;
826 __fs32 fs_fshift;
827 __fs32 fs_maxcontig;
828 __fs32 fs_maxbpg;
829 __fs32 fs_fragshift;
830 __fs32 fs_fsbtodb;
831 __fs32 fs_sbsize;
832 __fs32 fs_csmask;
833 __fs32 fs_csshift;
834 __fs32 fs_nindir;
835 __fs32 fs_inopb;
836 __fs32 fs_nspf;
837 __fs32 fs_optim;
838 union {
839 struct {
840 __fs32 fs_npsect;
841 } fs_sun;
842 struct {
843 __fs32 fs_state;
844 } fs_sunx86;
845 } fs_u1;
846 __fs32 fs_interleave;
847 __fs32 fs_trackskew;
848 __fs32 fs_id[2];
849 __fs32 fs_csaddr;
850 __fs32 fs_cssize;
851 __fs32 fs_cgsize;
852 __fs32 fs_ntrak;
853 __fs32 fs_nsect;
854 __fs32 fs_spc;
855 __fs32 fs_ncyl;
856 __fs32 fs_cpg;
857 __fs32 fs_ipg;
858 __fs32 fs_fpg;
859 struct ufs_csum fs_cstotal;
860 __s8 fs_fmod;
861 __s8 fs_clean;
862 __s8 fs_ronly;
863 __s8 fs_flags;
864 __s8 fs_fsmnt[UFS_MAXMNTLEN - 212];
865
866};
867
868struct ufs_super_block_second {
869 union {
870 struct {
871 __s8 fs_fsmnt[212];
872 __fs32 fs_cgrotor;
873 __fs32 fs_csp[UFS_MAXCSBUFS];
874 __fs32 fs_maxcluster;
875 __fs32 fs_cpc;
876 __fs16 fs_opostbl[82];
877 } fs_u1;
878 struct {
879 __s8 fs_fsmnt[UFS2_MAXMNTLEN - UFS_MAXMNTLEN + 212];
880 __u8 fs_volname[UFS2_MAXVOLLEN];
881 __fs64 fs_swuid;
882 __fs32 fs_pad;
883 __fs32 fs_cgrotor;
884 __fs32 fs_ocsp[UFS2_NOCSPTRS];
885 __fs32 fs_contigdirs;
886 __fs32 fs_csp;
887 __fs32 fs_maxcluster;
888 __fs32 fs_active;
889 __fs32 fs_old_cpc;
890 __fs32 fs_maxbsize;
891 __fs64 fs_sparecon64[17];
892 __fs64 fs_sblockloc;
893 __fs64 cs_ndir;
894 __fs64 cs_nbfree;
895 } fs_u2;
896 } fs_un;
897};
898
899struct ufs_super_block_third {
900 union {
901 struct {
902 __fs16 fs_opostbl[46];
903 } fs_u1;
904 struct {
905 __fs64 cs_nifree; /* number of free inodes */
906 __fs64 cs_nffree; /* number of free frags */
907 __fs64 cs_numclusters; /* number of free clusters */
908 __fs64 cs_spare[3]; /* future expansion */
909 struct ufs_timeval fs_time; /* last time written */
910 __fs64 fs_size; /* number of blocks in fs */
911 __fs64 fs_dsize; /* number of data blocks in fs */
912 __fs64 fs_csaddr; /* blk addr of cyl grp summary area */
913 __fs64 fs_pendingblocks;/* blocks in process of being freed */
914 __fs32 fs_pendinginodes;/*inodes in process of being freed */
915 } __attribute__ ((packed)) fs_u2;
916 } fs_un1;
917 union {
918 struct {
919 __fs32 fs_sparecon[53];/* reserved for future constants */
920 __fs32 fs_reclaim;
921 __fs32 fs_sparecon2[1];
922 __fs32 fs_state; /* file system state time stamp */
923 __fs32 fs_qbmask[2]; /* ~usb_bmask */
924 __fs32 fs_qfmask[2]; /* ~usb_fmask */
925 } fs_sun;
926 struct {
927 __fs32 fs_sparecon[53];/* reserved for future constants */
928 __fs32 fs_reclaim;
929 __fs32 fs_sparecon2[1];
930 __fs32 fs_npsect; /* # sectors/track including spares */
931 __fs32 fs_qbmask[2]; /* ~usb_bmask */
932 __fs32 fs_qfmask[2]; /* ~usb_fmask */
933 } fs_sunx86;
934 struct {
935 __fs32 fs_sparecon[50];/* reserved for future constants */
936 __fs32 fs_contigsumsize;/* size of cluster summary array */
937 __fs32 fs_maxsymlinklen;/* max length of an internal symlink */
938 __fs32 fs_inodefmt; /* format of on-disk inodes */
939 __fs32 fs_maxfilesize[2]; /* max representable file size */
940 __fs32 fs_qbmask[2]; /* ~usb_bmask */
941 __fs32 fs_qfmask[2]; /* ~usb_fmask */
942 __fs32 fs_state; /* file system state time stamp */
943 } fs_44;
944 } fs_un2;
945 __fs32 fs_postblformat;
946 __fs32 fs_nrpos;
947 __fs32 fs_postbloff;
948 __fs32 fs_rotbloff;
949 __fs32 fs_magic;
950 __u8 fs_space[1];
951};
952
953#endif /* __LINUX_UFS_FS_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-15 19:44:02 -0500