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11#ifndef __GFS2_ONDISK_DOT_H__
12#define __GFS2_ONDISK_DOT_H__
13
14#include <linux/types.h>
15
16#define GFS2_MAGIC 0x01161970
17#define GFS2_BASIC_BLOCK 512
18#define GFS2_BASIC_BLOCK_SHIFT 9
19
20
21
22#define GFS2_MOUNT_LOCK 0
23#define GFS2_LIVE_LOCK 1
24#define GFS2_FREEZE_LOCK 2
25#define GFS2_RENAME_LOCK 3
26#define GFS2_CONTROL_LOCK 4
27#define GFS2_MOUNTED_LOCK 5
28
29
30
31#define GFS2_FORMAT_NONE 0
32#define GFS2_FORMAT_SB 100
33#define GFS2_FORMAT_RG 200
34#define GFS2_FORMAT_RB 300
35#define GFS2_FORMAT_DI 400
36#define GFS2_FORMAT_IN 500
37#define GFS2_FORMAT_LF 600
38#define GFS2_FORMAT_JD 700
39#define GFS2_FORMAT_LH 800
40#define GFS2_FORMAT_LD 900
41#define GFS2_FORMAT_LB 1000
42#define GFS2_FORMAT_EA 1600
43#define GFS2_FORMAT_ED 1700
44#define GFS2_FORMAT_QC 1400
45
46#define GFS2_FORMAT_RI 1100
47#define GFS2_FORMAT_DE 1200
48#define GFS2_FORMAT_QU 1500
49
50#define GFS2_FORMAT_FS 1802
51#define GFS2_FORMAT_MULTI 1900
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56
57struct gfs2_inum {
58 __be64 no_formal_ino;
59 __be64 no_addr;
60};
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66
67#define GFS2_METATYPE_NONE 0
68#define GFS2_METATYPE_SB 1
69#define GFS2_METATYPE_RG 2
70#define GFS2_METATYPE_RB 3
71#define GFS2_METATYPE_DI 4
72#define GFS2_METATYPE_IN 5
73#define GFS2_METATYPE_LF 6
74#define GFS2_METATYPE_JD 7
75#define GFS2_METATYPE_LH 8
76#define GFS2_METATYPE_LD 9
77#define GFS2_METATYPE_LB 12
78#define GFS2_METATYPE_EA 10
79#define GFS2_METATYPE_ED 11
80#define GFS2_METATYPE_QC 14
81
82struct gfs2_meta_header {
83 __be32 mh_magic;
84 __be32 mh_type;
85 __be64 __pad0;
86 __be32 mh_format;
87
88 union {
89 __be32 mh_jid;
90 __be32 __pad1;
91 };
92};
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104#define GFS2_SB_ADDR 128
105
106
107#define GFS2_SB_LOCK 0
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111#define GFS2_LOCKNAME_LEN 64
112
113struct gfs2_sb {
114 struct gfs2_meta_header sb_header;
115
116 __be32 sb_fs_format;
117 __be32 sb_multihost_format;
118 __u32 __pad0;
119
120 __be32 sb_bsize;
121 __be32 sb_bsize_shift;
122 __u32 __pad1;
123
124 struct gfs2_inum sb_master_dir;
125 struct gfs2_inum __pad2;
126 struct gfs2_inum sb_root_dir;
127
128 char sb_lockproto[GFS2_LOCKNAME_LEN];
129 char sb_locktable[GFS2_LOCKNAME_LEN];
130
131 struct gfs2_inum __pad3;
132 struct gfs2_inum __pad4;
133#define GFS2_HAS_UUID 1
134 __u8 sb_uuid[16];
135};
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140
141struct gfs2_rindex {
142 __be64 ri_addr;
143 __be32 ri_length;
144 __u32 __pad;
145
146 __be64 ri_data0;
147 __be32 ri_data;
148
149 __be32 ri_bitbytes;
150
151 __u8 ri_reserved[64];
152};
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158
159#define GFS2_NBBY 4
160#define GFS2_BIT_SIZE 2
161#define GFS2_BIT_MASK 0x00000003
162
163#define GFS2_BLKST_FREE 0
164#define GFS2_BLKST_USED 1
165#define GFS2_BLKST_UNLINKED 2
166#define GFS2_BLKST_DINODE 3
167
168#define GFS2_RGF_JOURNAL 0x00000001
169#define GFS2_RGF_METAONLY 0x00000002
170#define GFS2_RGF_DATAONLY 0x00000004
171#define GFS2_RGF_NOALLOC 0x00000008
172#define GFS2_RGF_TRIMMED 0x00000010
173
174struct gfs2_inode_lvb {
175 __be32 ri_magic;
176 __be32 __pad;
177 __be64 ri_generation_deleted;
178};
179
180struct gfs2_rgrp_lvb {
181 __be32 rl_magic;
182 __be32 rl_flags;
183 __be32 rl_free;
184 __be32 rl_dinodes;
185 __be64 rl_igeneration;
186 __be32 rl_unlinked;
187 __be32 __pad;
188};
189
190struct gfs2_rgrp {
191 struct gfs2_meta_header rg_header;
192
193 __be32 rg_flags;
194 __be32 rg_free;
195 __be32 rg_dinodes;
196 union {
197 __be32 __pad;
198 __be32 rg_skip;
199 };
200 __be64 rg_igeneration;
201
202
203 __be64 rg_data0;
204 __be32 rg_data;
205 __be32 rg_bitbytes;
206 __be32 rg_crc;
207
208 __u8 rg_reserved[60];
209};
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214
215struct gfs2_quota {
216 __be64 qu_limit;
217 __be64 qu_warn;
218 __be64 qu_value;
219 __u8 qu_reserved[64];
220};
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226#define GFS2_MAX_META_HEIGHT 10
227#define GFS2_DIR_MAX_DEPTH 17
228
229#define DT2IF(dt) (((dt) << 12) & S_IFMT)
230#define IF2DT(sif) (((sif) & S_IFMT) >> 12)
231
232enum {
233 gfs2fl_Jdata = 0,
234 gfs2fl_ExHash = 1,
235 gfs2fl_Unused = 2,
236 gfs2fl_EaIndirect = 3,
237 gfs2fl_Directio = 4,
238 gfs2fl_Immutable = 5,
239 gfs2fl_AppendOnly = 6,
240 gfs2fl_NoAtime = 7,
241 gfs2fl_Sync = 8,
242 gfs2fl_System = 9,
243 gfs2fl_TopLevel = 10,
244 gfs2fl_TruncInProg = 29,
245 gfs2fl_InheritDirectio = 30,
246 gfs2fl_InheritJdata = 31,
247};
248
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250#define GFS2_DIF_JDATA 0x00000001
251#define GFS2_DIF_EXHASH 0x00000002
252#define GFS2_DIF_UNUSED 0x00000004
253#define GFS2_DIF_EA_INDIRECT 0x00000008
254#define GFS2_DIF_DIRECTIO 0x00000010
255#define GFS2_DIF_IMMUTABLE 0x00000020
256#define GFS2_DIF_APPENDONLY 0x00000040
257#define GFS2_DIF_NOATIME 0x00000080
258#define GFS2_DIF_SYNC 0x00000100
259#define GFS2_DIF_SYSTEM 0x00000200
260#define GFS2_DIF_TOPDIR 0x00000400
261#define GFS2_DIF_TRUNC_IN_PROG 0x20000000
262#define GFS2_DIF_INHERIT_DIRECTIO 0x40000000
263#define GFS2_DIF_INHERIT_JDATA 0x80000000
264
265struct gfs2_dinode {
266 struct gfs2_meta_header di_header;
267
268 struct gfs2_inum di_num;
269
270 __be32 di_mode;
271 __be32 di_uid;
272 __be32 di_gid;
273 __be32 di_nlink;
274 __be64 di_size;
275 __be64 di_blocks;
276 __be64 di_atime;
277 __be64 di_mtime;
278 __be64 di_ctime;
279 __be32 di_major;
280 __be32 di_minor;
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285 __be64 di_goal_meta;
286 __be64 di_goal_data;
287 __be64 di_generation;
288
289 __be32 di_flags;
290 __be32 di_payload_format;
291 __u16 __pad1;
292 __be16 di_height;
293 __u32 __pad2;
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296 __u16 __pad3;
297 __be16 di_depth;
298 __be32 di_entries;
299
300 struct gfs2_inum __pad4;
301
302 __be64 di_eattr;
303 __be32 di_atime_nsec;
304 __be32 di_mtime_nsec;
305 __be32 di_ctime_nsec;
306
307 __u8 di_reserved[44];
308};
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314#define GFS2_FNAMESIZE 255
315#define GFS2_DIRENT_SIZE(name_len) ((sizeof(struct gfs2_dirent) + (name_len) + 7) & ~7)
316#define GFS2_MIN_DIRENT_SIZE (GFS2_DIRENT_SIZE(1))
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319struct gfs2_dirent {
320 struct gfs2_inum de_inum;
321 __be32 de_hash;
322 __be16 de_rec_len;
323 __be16 de_name_len;
324 __be16 de_type;
325 __be16 de_rahead;
326 union {
327 __u8 __pad[12];
328 struct {
329 __u32 de_cookie;
330 __u8 pad3[8];
331 };
332 };
333};
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339struct gfs2_leaf {
340 struct gfs2_meta_header lf_header;
341
342 __be16 lf_depth;
343 __be16 lf_entries;
344 __be32 lf_dirent_format;
345 __be64 lf_next;
346
347 union {
348 __u8 lf_reserved[64];
349 struct {
350 __be64 lf_inode;
351 __be32 lf_dist;
352 __be32 lf_nsec;
353 __be64 lf_sec;
354 __u8 lf_reserved2[40];
355 };
356 };
357};
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385#define GFS2_EA_MAX_NAME_LEN 255
386#define GFS2_EA_MAX_DATA_LEN 65536
387
388#define GFS2_EATYPE_UNUSED 0
389#define GFS2_EATYPE_USR 1
390#define GFS2_EATYPE_SYS 2
391#define GFS2_EATYPE_SECURITY 3
392#define GFS2_EATYPE_TRUSTED 4
393
394#define GFS2_EATYPE_LAST 4
395#define GFS2_EATYPE_VALID(x) ((x) <= GFS2_EATYPE_LAST)
396
397#define GFS2_EAFLAG_LAST 0x01
398
399struct gfs2_ea_header {
400 __be32 ea_rec_len;
401 __be32 ea_data_len;
402 __u8 ea_name_len;
403 __u8 ea_type;
404 __u8 ea_flags;
405 __u8 ea_num_ptrs;
406 __u32 __pad;
407};
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413#define GFS2_LOG_HEAD_UNMOUNT 0x00000001
414#define GFS2_LOG_HEAD_FLUSH_NORMAL 0x00000002
415#define GFS2_LOG_HEAD_FLUSH_SYNC 0x00000004
416#define GFS2_LOG_HEAD_FLUSH_SHUTDOWN 0x00000008
417#define GFS2_LOG_HEAD_FLUSH_FREEZE 0x00000010
418#define GFS2_LOG_HEAD_RECOVERY 0x00000020
419#define GFS2_LOG_HEAD_USERSPACE 0x80000000
420
421
422#define GFS2_LFC_SHUTDOWN 0x00000100
423#define GFS2_LFC_JDATA_WPAGES 0x00000200
424#define GFS2_LFC_SET_FLAGS 0x00000400
425#define GFS2_LFC_AIL_EMPTY_GL 0x00000800
426#define GFS2_LFC_AIL_FLUSH 0x00001000
427#define GFS2_LFC_RGRP_GO_SYNC 0x00002000
428#define GFS2_LFC_INODE_GO_SYNC 0x00004000
429#define GFS2_LFC_INODE_GO_INVAL 0x00008000
430#define GFS2_LFC_FREEZE_GO_SYNC 0x00010000
431#define GFS2_LFC_KILL_SB 0x00020000
432#define GFS2_LFC_DO_SYNC 0x00040000
433#define GFS2_LFC_INPLACE_RESERVE 0x00080000
434#define GFS2_LFC_WRITE_INODE 0x00100000
435#define GFS2_LFC_MAKE_FS_RO 0x00200000
436#define GFS2_LFC_SYNC_FS 0x00400000
437#define GFS2_LFC_EVICT_INODE 0x00800000
438#define GFS2_LFC_TRANS_END 0x01000000
439#define GFS2_LFC_LOGD_JFLUSH_REQD 0x02000000
440#define GFS2_LFC_LOGD_AIL_FLUSH_REQD 0x04000000
441
442#define LH_V1_SIZE (offsetofend(struct gfs2_log_header, lh_hash))
443
444struct gfs2_log_header {
445 struct gfs2_meta_header lh_header;
446
447 __be64 lh_sequence;
448 __be32 lh_flags;
449 __be32 lh_tail;
450 __be32 lh_blkno;
451 __be32 lh_hash;
452
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454 __be32 lh_crc;
455 __be32 lh_nsec;
456 __be64 lh_sec;
457 __be64 lh_addr;
458 __be64 lh_jinode;
459 __be64 lh_statfs_addr;
460 __be64 lh_quota_addr;
461
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463 __be64 lh_local_total;
464 __be64 lh_local_free;
465 __be64 lh_local_dinodes;
466};
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472#define GFS2_LOG_DESC_METADATA 300
473
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476#define GFS2_LOG_DESC_REVOKE 301
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480#define GFS2_LOG_DESC_JDATA 302
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484struct gfs2_log_descriptor {
485 struct gfs2_meta_header ld_header;
486
487 __be32 ld_type;
488 __be32 ld_length;
489 __be32 ld_data1;
490 __be32 ld_data2;
491
492 __u8 ld_reserved[32];
493};
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501#define GFS2_INUM_QUANTUM 1048576
502
503struct gfs2_inum_range {
504 __be64 ir_start;
505 __be64 ir_length;
506};
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514struct gfs2_statfs_change {
515 __be64 sc_total;
516 __be64 sc_free;
517 __be64 sc_dinodes;
518};
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526#define GFS2_QCF_USER 0x00000001
527
528struct gfs2_quota_change {
529 __be64 qc_change;
530 __be32 qc_flags;
531 __be32 qc_id;
532};
533
534struct gfs2_quota_lvb {
535 __be32 qb_magic;
536 __u32 __pad;
537 __be64 qb_limit;
538 __be64 qb_warn;
539 __be64 qb_value;
540};
541
542#endif
543