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Commit | Line | Data |
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b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
29d38cd1 | 3 | * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
4 | * |
5 | * This copyrighted material is made available to anyone wishing to use, | |
6 | * modify, copy, or redistribute it subject to the terms and conditions | |
e9fc2aa0 | 7 | * of the GNU General Public License version 2. |
b3b94faa DT |
8 | */ |
9 | ||
10 | #ifndef __INCORE_DOT_H__ | |
11 | #define __INCORE_DOT_H__ | |
12 | ||
f2f7ba52 | 13 | #include <linux/fs.h> |
57cc7215 | 14 | #include <linux/kobject.h> |
c4f68a13 | 15 | #include <linux/workqueue.h> |
f057f6cd SW |
16 | #include <linux/dlm.h> |
17 | #include <linux/buffer_head.h> | |
bc015cb8 SW |
18 | #include <linux/rcupdate.h> |
19 | #include <linux/rculist_bl.h> | |
f2f7ba52 | 20 | |
b3b94faa DT |
21 | #define DIO_WAIT 0x00000010 |
22 | #define DIO_METADATA 0x00000020 | |
b3b94faa DT |
23 | #define DIO_ALL 0x00000100 |
24 | ||
25 | struct gfs2_log_operations; | |
26 | struct gfs2_log_element; | |
b3b94faa DT |
27 | struct gfs2_holder; |
28 | struct gfs2_glock; | |
b3b94faa | 29 | struct gfs2_quota_data; |
b3b94faa DT |
30 | struct gfs2_trans; |
31 | struct gfs2_ail; | |
32 | struct gfs2_jdesc; | |
b3b94faa | 33 | struct gfs2_sbd; |
f057f6cd | 34 | struct lm_lockops; |
b3b94faa DT |
35 | |
36 | typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret); | |
37 | ||
bb8d8a6f SW |
38 | struct gfs2_log_header_host { |
39 | u64 lh_sequence; /* Sequence number of this transaction */ | |
40 | u32 lh_flags; /* GFS2_LOG_HEAD_... */ | |
41 | u32 lh_tail; /* Block number of log tail */ | |
42 | u32 lh_blkno; | |
43 | u32 lh_hash; | |
44 | }; | |
45 | ||
b3b94faa DT |
46 | /* |
47 | * Structure of operations that are associated with each | |
48 | * type of element in the log. | |
49 | */ | |
50 | ||
51 | struct gfs2_log_operations { | |
52 | void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le); | |
b3b94faa DT |
53 | void (*lo_before_commit) (struct gfs2_sbd *sdp); |
54 | void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai); | |
55 | void (*lo_before_scan) (struct gfs2_jdesc *jd, | |
55167622 | 56 | struct gfs2_log_header_host *head, int pass); |
b3b94faa DT |
57 | int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start, |
58 | struct gfs2_log_descriptor *ld, __be64 *ptr, | |
59 | int pass); | |
60 | void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass); | |
b09e593d | 61 | const char *lo_name; |
b3b94faa DT |
62 | }; |
63 | ||
64 | struct gfs2_log_element { | |
65 | struct list_head le_list; | |
b09e593d | 66 | const struct gfs2_log_operations *le_ops; |
b3b94faa DT |
67 | }; |
68 | ||
60a0b8f9 SW |
69 | #define GBF_FULL 1 |
70 | ||
b3b94faa DT |
71 | struct gfs2_bitmap { |
72 | struct buffer_head *bi_bh; | |
73 | char *bi_clone; | |
60a0b8f9 | 74 | unsigned long bi_flags; |
cd915493 SW |
75 | u32 bi_offset; |
76 | u32 bi_start; | |
77 | u32 bi_len; | |
b3b94faa DT |
78 | }; |
79 | ||
80 | struct gfs2_rgrpd { | |
81 | struct list_head rd_list; /* Link with superblock */ | |
82 | struct list_head rd_list_mru; | |
b3b94faa | 83 | struct gfs2_glock *rd_gl; /* Glock for this rgrp */ |
bb8d8a6f SW |
84 | u64 rd_addr; /* grp block disk address */ |
85 | u64 rd_data0; /* first data location */ | |
86 | u32 rd_length; /* length of rgrp header in fs blocks */ | |
87 | u32 rd_data; /* num of data blocks in rgrp */ | |
88 | u32 rd_bitbytes; /* number of bytes in data bitmaps */ | |
cfc8b549 | 89 | u32 rd_free; |
73f74948 SW |
90 | u32 rd_free_clone; |
91 | u32 rd_dinodes; | |
d8b71f73 | 92 | u64 rd_igeneration; |
b3b94faa | 93 | struct gfs2_bitmap *rd_bits; |
f55ab26a | 94 | struct mutex rd_mutex; |
b3b94faa | 95 | struct gfs2_log_element rd_le; |
b3b94faa | 96 | struct gfs2_sbd *rd_sbd; |
73f74948 SW |
97 | unsigned int rd_bh_count; |
98 | u32 rd_last_alloc; | |
1ce97e56 | 99 | u32 rd_flags; |
09010978 SW |
100 | #define GFS2_RDF_CHECK 0x10000000 /* check for unlinked inodes */ |
101 | #define GFS2_RDF_UPTODATE 0x20000000 /* rg is up to date */ | |
102 | #define GFS2_RDF_ERROR 0x40000000 /* error in rg */ | |
103 | #define GFS2_RDF_MASK 0xf0000000 /* mask for internal flags */ | |
b3b94faa DT |
104 | }; |
105 | ||
106 | enum gfs2_state_bits { | |
107 | BH_Pinned = BH_PrivateStart, | |
f42faf4f | 108 | BH_Escaped = BH_PrivateStart + 1, |
b3b94faa DT |
109 | }; |
110 | ||
111 | BUFFER_FNS(Pinned, pinned) | |
112 | TAS_BUFFER_FNS(Pinned, pinned) | |
f42faf4f SW |
113 | BUFFER_FNS(Escaped, escaped) |
114 | TAS_BUFFER_FNS(Escaped, escaped) | |
b3b94faa DT |
115 | |
116 | struct gfs2_bufdata { | |
117 | struct buffer_head *bd_bh; | |
118 | struct gfs2_glock *bd_gl; | |
119 | ||
82e86087 SW |
120 | union { |
121 | struct list_head list_tr; | |
122 | u64 blkno; | |
123 | } u; | |
124 | #define bd_list_tr u.list_tr | |
125 | #define bd_blkno u.blkno | |
126 | ||
b3b94faa DT |
127 | struct gfs2_log_element bd_le; |
128 | ||
129 | struct gfs2_ail *bd_ail; | |
130 | struct list_head bd_ail_st_list; | |
131 | struct list_head bd_ail_gl_list; | |
132 | }; | |
133 | ||
f057f6cd SW |
134 | /* |
135 | * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a | |
136 | * prefix of lock_dlm_ gets awkward. | |
137 | */ | |
138 | ||
139 | #define GDLM_STRNAME_BYTES 25 | |
140 | #define GDLM_LVB_SIZE 32 | |
141 | ||
142 | enum { | |
143 | DFL_BLOCK_LOCKS = 0, | |
144 | }; | |
145 | ||
146 | struct lm_lockname { | |
147 | u64 ln_number; | |
148 | unsigned int ln_type; | |
149 | }; | |
150 | ||
151 | #define lm_name_equal(name1, name2) \ | |
152 | (((name1)->ln_number == (name2)->ln_number) && \ | |
153 | ((name1)->ln_type == (name2)->ln_type)) | |
154 | ||
155 | ||
b3b94faa | 156 | struct gfs2_glock_operations { |
b5d32bea | 157 | void (*go_xmote_th) (struct gfs2_glock *gl); |
6802e340 | 158 | int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh); |
1a14d3a6 | 159 | void (*go_inval) (struct gfs2_glock *gl, int flags); |
97cc1025 | 160 | int (*go_demote_ok) (const struct gfs2_glock *gl); |
1a14d3a6 SW |
161 | int (*go_lock) (struct gfs2_holder *gh); |
162 | void (*go_unlock) (struct gfs2_holder *gh); | |
6802e340 | 163 | int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl); |
b94a170e | 164 | void (*go_callback) (struct gfs2_glock *gl); |
8fb4b536 | 165 | const int go_type; |
c4f68a13 | 166 | const unsigned long go_min_hold_time; |
009d8518 SW |
167 | const unsigned long go_flags; |
168 | #define GLOF_ASPACE 1 | |
b3b94faa DT |
169 | }; |
170 | ||
171 | enum { | |
b3b94faa | 172 | /* States */ |
6802e340 | 173 | HIF_HOLDER = 6, /* Set for gh that "holds" the glock */ |
b3b94faa | 174 | HIF_FIRST = 7, |
fee852e3 | 175 | HIF_WAIT = 10, |
b3b94faa DT |
176 | }; |
177 | ||
178 | struct gfs2_holder { | |
179 | struct list_head gh_list; | |
180 | ||
181 | struct gfs2_glock *gh_gl; | |
b1e058da | 182 | struct pid *gh_owner_pid; |
b3b94faa | 183 | unsigned int gh_state; |
fe1bdedc | 184 | unsigned gh_flags; |
b3b94faa DT |
185 | |
186 | int gh_error; | |
6802e340 | 187 | unsigned long gh_iflags; /* HIF_... */ |
d0dc80db | 188 | unsigned long gh_ip; |
b3b94faa DT |
189 | }; |
190 | ||
191 | enum { | |
6802e340 | 192 | GLF_LOCK = 1, |
6802e340 SW |
193 | GLF_DEMOTE = 3, |
194 | GLF_PENDING_DEMOTE = 4, | |
195 | GLF_DEMOTE_IN_PROGRESS = 5, | |
196 | GLF_DIRTY = 6, | |
197 | GLF_LFLUSH = 7, | |
198 | GLF_INVALIDATE_IN_PROGRESS = 8, | |
199 | GLF_REPLY_PENDING = 9, | |
f057f6cd SW |
200 | GLF_INITIAL = 10, |
201 | GLF_FROZEN = 11, | |
7b5e3d5f | 202 | GLF_QUEUED = 12, |
627c10b7 SW |
203 | GLF_LRU = 13, |
204 | GLF_OBJECT = 14, /* Used only for tracing */ | |
b3b94faa DT |
205 | }; |
206 | ||
207 | struct gfs2_glock { | |
bc015cb8 | 208 | struct hlist_bl_node gl_list; |
b3b94faa DT |
209 | unsigned long gl_flags; /* GLF_... */ |
210 | struct lm_lockname gl_name; | |
16feb9fe | 211 | atomic_t gl_ref; |
b3b94faa DT |
212 | |
213 | spinlock_t gl_spin; | |
214 | ||
47a25380 SW |
215 | /* State fields protected by gl_spin */ |
216 | unsigned int gl_state:2, /* Current state */ | |
217 | gl_target:2, /* Target state */ | |
218 | gl_demote_state:2, /* State requested by remote node */ | |
219 | gl_req:2, /* State in last dlm request */ | |
220 | gl_reply:8; /* Last reply from the dlm */ | |
221 | ||
37b2fa6a | 222 | unsigned int gl_hash; |
3b8249f6 | 223 | unsigned long gl_demote_time; /* time of first demote request */ |
b3b94faa | 224 | struct list_head gl_holders; |
b3b94faa | 225 | |
8fb4b536 | 226 | const struct gfs2_glock_operations *gl_ops; |
f057f6cd SW |
227 | char gl_strname[GDLM_STRNAME_BYTES]; |
228 | struct dlm_lksb gl_lksb; | |
229 | char gl_lvb[32]; | |
c4f68a13 | 230 | unsigned long gl_tchange; |
b3b94faa DT |
231 | void *gl_object; |
232 | ||
97cc1025 | 233 | struct list_head gl_lru; |
b3b94faa DT |
234 | |
235 | struct gfs2_sbd *gl_sbd; | |
236 | ||
b3b94faa DT |
237 | struct list_head gl_ail_list; |
238 | atomic_t gl_ail_count; | |
c4f68a13 | 239 | struct delayed_work gl_work; |
b94a170e | 240 | struct work_struct gl_delete; |
bc015cb8 | 241 | struct rcu_head gl_rcu; |
b3b94faa DT |
242 | }; |
243 | ||
da755fdb SW |
244 | #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */ |
245 | ||
b3b94faa DT |
246 | struct gfs2_alloc { |
247 | /* Quota stuff */ | |
248 | ||
e9fc2aa0 SW |
249 | struct gfs2_quota_data *al_qd[2*MAXQUOTAS]; |
250 | struct gfs2_holder al_qd_ghs[2*MAXQUOTAS]; | |
6b61b072 | 251 | unsigned int al_qd_num; |
b3b94faa | 252 | |
6b61b072 SW |
253 | u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */ |
254 | u32 al_alloced; /* Filled in by gfs2_alloc_*() */ | |
b3b94faa DT |
255 | |
256 | /* Filled in by gfs2_inplace_reserve() */ | |
257 | ||
b3b94faa | 258 | unsigned int al_line; |
6b61b072 | 259 | char *al_file; |
b3b94faa DT |
260 | struct gfs2_holder al_ri_gh; |
261 | struct gfs2_holder al_rgd_gh; | |
262 | struct gfs2_rgrpd *al_rgd; | |
263 | ||
b3b94faa DT |
264 | }; |
265 | ||
266 | enum { | |
bfded27b | 267 | GIF_INVALID = 0, |
b3b94faa | 268 | GIF_QD_LOCKED = 1, |
b3b94faa DT |
269 | GIF_SW_PAGED = 3, |
270 | }; | |
271 | ||
bb8d8a6f | 272 | |
b3b94faa | 273 | struct gfs2_inode { |
320dd101 | 274 | struct inode i_inode; |
dbb7cae2 SW |
275 | u64 i_no_addr; |
276 | u64 i_no_formal_ino; | |
bcf0b5b3 | 277 | u64 i_generation; |
3767ac21 | 278 | u64 i_eattr; |
b3b94faa | 279 | unsigned long i_flags; /* GIF_... */ |
feaa7bba | 280 | struct gfs2_glock *i_gl; /* Move into i_gh? */ |
b3b94faa | 281 | struct gfs2_holder i_iopen_gh; |
f42faf4f | 282 | struct gfs2_holder i_gh; /* for prepare/commit_write only */ |
6dbd8224 | 283 | struct gfs2_alloc *i_alloc; |
ce276b06 | 284 | u64 i_goal; /* goal block for allocations */ |
b3b94faa | 285 | struct rw_semaphore i_rw_mutex; |
813e0c46 | 286 | struct list_head i_trunc_list; |
ad6203f2 | 287 | u32 i_entries; |
383f01fb | 288 | u32 i_diskflags; |
ecc30c79 | 289 | u8 i_height; |
9a004508 | 290 | u8 i_depth; |
b3b94faa DT |
291 | }; |
292 | ||
feaa7bba SW |
293 | /* |
294 | * Since i_inode is the first element of struct gfs2_inode, | |
295 | * this is effectively a cast. | |
296 | */ | |
320dd101 SW |
297 | static inline struct gfs2_inode *GFS2_I(struct inode *inode) |
298 | { | |
299 | return container_of(inode, struct gfs2_inode, i_inode); | |
300 | } | |
301 | ||
bf36a713 | 302 | static inline struct gfs2_sbd *GFS2_SB(const struct inode *inode) |
feaa7bba SW |
303 | { |
304 | return inode->i_sb->s_fs_info; | |
305 | } | |
306 | ||
b3b94faa | 307 | struct gfs2_file { |
f55ab26a | 308 | struct mutex f_fl_mutex; |
b3b94faa | 309 | struct gfs2_holder f_fl_gh; |
b3b94faa DT |
310 | }; |
311 | ||
b3b94faa DT |
312 | struct gfs2_revoke_replay { |
313 | struct list_head rr_list; | |
cd915493 | 314 | u64 rr_blkno; |
b3b94faa DT |
315 | unsigned int rr_where; |
316 | }; | |
317 | ||
b3b94faa DT |
318 | enum { |
319 | QDF_USER = 0, | |
320 | QDF_CHANGE = 1, | |
321 | QDF_LOCKED = 2, | |
662e3a55 | 322 | QDF_REFRESH = 3, |
b3b94faa DT |
323 | }; |
324 | ||
325 | struct gfs2_quota_data { | |
326 | struct list_head qd_list; | |
0a7ab79c AD |
327 | struct list_head qd_reclaim; |
328 | ||
329 | atomic_t qd_count; | |
b3b94faa | 330 | |
cd915493 | 331 | u32 qd_id; |
b3b94faa DT |
332 | unsigned long qd_flags; /* QDF_... */ |
333 | ||
cd915493 SW |
334 | s64 qd_change; |
335 | s64 qd_change_sync; | |
b3b94faa DT |
336 | |
337 | unsigned int qd_slot; | |
338 | unsigned int qd_slot_count; | |
339 | ||
340 | struct buffer_head *qd_bh; | |
341 | struct gfs2_quota_change *qd_bh_qc; | |
342 | unsigned int qd_bh_count; | |
343 | ||
344 | struct gfs2_glock *qd_gl; | |
345 | struct gfs2_quota_lvb qd_qb; | |
346 | ||
cd915493 | 347 | u64 qd_sync_gen; |
b3b94faa | 348 | unsigned long qd_last_warn; |
b3b94faa DT |
349 | }; |
350 | ||
b3b94faa | 351 | struct gfs2_trans { |
d0dc80db | 352 | unsigned long tr_ip; |
b3b94faa DT |
353 | |
354 | unsigned int tr_blocks; | |
355 | unsigned int tr_revokes; | |
356 | unsigned int tr_reserved; | |
357 | ||
e317ffcb | 358 | struct gfs2_holder tr_t_gh; |
b3b94faa DT |
359 | |
360 | int tr_touched; | |
361 | ||
362 | unsigned int tr_num_buf; | |
363 | unsigned int tr_num_buf_new; | |
2332c443 | 364 | unsigned int tr_num_databuf_new; |
b3b94faa | 365 | unsigned int tr_num_buf_rm; |
2332c443 | 366 | unsigned int tr_num_databuf_rm; |
b3b94faa DT |
367 | struct list_head tr_list_buf; |
368 | ||
369 | unsigned int tr_num_revoke; | |
370 | unsigned int tr_num_revoke_rm; | |
371 | }; | |
372 | ||
373 | struct gfs2_ail { | |
374 | struct list_head ai_list; | |
375 | ||
376 | unsigned int ai_first; | |
377 | struct list_head ai_ail1_list; | |
378 | struct list_head ai_ail2_list; | |
379 | ||
cd915493 | 380 | u64 ai_sync_gen; |
b3b94faa DT |
381 | }; |
382 | ||
da6dd40d BP |
383 | struct gfs2_journal_extent { |
384 | struct list_head extent_list; | |
385 | ||
386 | unsigned int lblock; /* First logical block */ | |
387 | u64 dblock; /* First disk block */ | |
388 | u64 blocks; | |
389 | }; | |
390 | ||
b3b94faa DT |
391 | struct gfs2_jdesc { |
392 | struct list_head jd_list; | |
da6dd40d | 393 | struct list_head extent_list; |
6ecd7c2d | 394 | struct work_struct jd_work; |
7359a19c | 395 | struct inode *jd_inode; |
fe64d517 SW |
396 | unsigned long jd_flags; |
397 | #define JDF_RECOVERY 1 | |
b3b94faa | 398 | unsigned int jd_jid; |
b3b94faa DT |
399 | unsigned int jd_blocks; |
400 | }; | |
401 | ||
bb8d8a6f SW |
402 | struct gfs2_statfs_change_host { |
403 | s64 sc_total; | |
404 | s64 sc_free; | |
405 | s64 sc_dinodes; | |
406 | }; | |
407 | ||
b3b94faa DT |
408 | #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF |
409 | #define GFS2_QUOTA_OFF 0 | |
410 | #define GFS2_QUOTA_ACCOUNT 1 | |
411 | #define GFS2_QUOTA_ON 2 | |
412 | ||
413 | #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED | |
414 | #define GFS2_DATA_WRITEBACK 1 | |
415 | #define GFS2_DATA_ORDERED 2 | |
416 | ||
d34843d0 BP |
417 | #define GFS2_ERRORS_DEFAULT GFS2_ERRORS_WITHDRAW |
418 | #define GFS2_ERRORS_WITHDRAW 0 | |
419 | #define GFS2_ERRORS_CONTINUE 1 /* place holder for future feature */ | |
420 | #define GFS2_ERRORS_RO 2 /* place holder for future feature */ | |
421 | #define GFS2_ERRORS_PANIC 3 | |
422 | ||
b3b94faa | 423 | struct gfs2_args { |
37ec89e8 SW |
424 | char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */ |
425 | char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */ | |
426 | char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */ | |
427 | unsigned int ar_spectator:1; /* Don't get a journal */ | |
37ec89e8 | 428 | unsigned int ar_localflocks:1; /* Let the VFS do flock|fcntl */ |
37ec89e8 | 429 | unsigned int ar_debug:1; /* Oops on errors */ |
37ec89e8 SW |
430 | unsigned int ar_posix_acl:1; /* Enable posix acls */ |
431 | unsigned int ar_quota:2; /* off/account/on */ | |
432 | unsigned int ar_suiddir:1; /* suiddir support */ | |
433 | unsigned int ar_data:2; /* ordered/writeback */ | |
434 | unsigned int ar_meta:1; /* mount metafs */ | |
f15ab561 | 435 | unsigned int ar_discard:1; /* discard requests */ |
d34843d0 | 436 | unsigned int ar_errors:2; /* errors=withdraw | panic */ |
f25934c5 | 437 | unsigned int ar_nobarrier:1; /* do not send barriers */ |
48c2b613 | 438 | int ar_commit; /* Commit interval */ |
3d3c10f2 BM |
439 | int ar_statfs_quantum; /* The fast statfs interval */ |
440 | int ar_quota_quantum; /* The quota interval */ | |
441 | int ar_statfs_percent; /* The % change to force sync */ | |
b3b94faa DT |
442 | }; |
443 | ||
444 | struct gfs2_tune { | |
445 | spinlock_t gt_spin; | |
446 | ||
b3b94faa | 447 | unsigned int gt_logd_secs; |
b3b94faa DT |
448 | |
449 | unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */ | |
450 | unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */ | |
451 | unsigned int gt_quota_scale_num; /* Numerator */ | |
452 | unsigned int gt_quota_scale_den; /* Denominator */ | |
b3b94faa | 453 | unsigned int gt_quota_quantum; /* Secs between syncs to quota file */ |
b3b94faa | 454 | unsigned int gt_new_files_jdata; |
b3b94faa | 455 | unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */ |
b3b94faa | 456 | unsigned int gt_complain_secs; |
b3b94faa DT |
457 | unsigned int gt_statfs_quantum; |
458 | unsigned int gt_statfs_slow; | |
459 | }; | |
460 | ||
b3b94faa DT |
461 | enum { |
462 | SDF_JOURNAL_CHECKED = 0, | |
463 | SDF_JOURNAL_LIVE = 1, | |
464 | SDF_SHUTDOWN = 2, | |
254db57f | 465 | SDF_NOBARRIERS = 3, |
fe64d517 | 466 | SDF_NORECOVERY = 4, |
913a71d2 | 467 | SDF_DEMOTE = 5, |
ba6e9364 | 468 | SDF_NOJOURNALID = 6, |
b3b94faa DT |
469 | }; |
470 | ||
b3b94faa DT |
471 | #define GFS2_FSNAME_LEN 256 |
472 | ||
bb8d8a6f SW |
473 | struct gfs2_inum_host { |
474 | u64 no_formal_ino; | |
475 | u64 no_addr; | |
476 | }; | |
477 | ||
478 | struct gfs2_sb_host { | |
479 | u32 sb_magic; | |
480 | u32 sb_type; | |
481 | u32 sb_format; | |
482 | ||
483 | u32 sb_fs_format; | |
484 | u32 sb_multihost_format; | |
485 | u32 sb_bsize; | |
486 | u32 sb_bsize_shift; | |
487 | ||
488 | struct gfs2_inum_host sb_master_dir; | |
489 | struct gfs2_inum_host sb_root_dir; | |
490 | ||
491 | char sb_lockproto[GFS2_LOCKNAME_LEN]; | |
492 | char sb_locktable[GFS2_LOCKNAME_LEN]; | |
02e3cc70 | 493 | u8 sb_uuid[16]; |
bb8d8a6f SW |
494 | }; |
495 | ||
f057f6cd SW |
496 | /* |
497 | * lm_mount() return values | |
498 | * | |
499 | * ls_jid - the journal ID this node should use | |
500 | * ls_first - this node is the first to mount the file system | |
501 | * ls_lockspace - lock module's context for this file system | |
502 | * ls_ops - lock module's functions | |
503 | */ | |
504 | ||
505 | struct lm_lockstruct { | |
feb47ca9 | 506 | int ls_jid; |
f057f6cd SW |
507 | unsigned int ls_first; |
508 | unsigned int ls_first_done; | |
509 | unsigned int ls_nodir; | |
510 | const struct lm_lockops *ls_ops; | |
511 | unsigned long ls_flags; | |
512 | dlm_lockspace_t *ls_dlm; | |
513 | ||
f057f6cd SW |
514 | int ls_recover_jid_done; |
515 | int ls_recover_jid_status; | |
516 | }; | |
517 | ||
b3b94faa DT |
518 | struct gfs2_sbd { |
519 | struct super_block *sd_vfs; | |
520 | struct kobject sd_kobj; | |
521 | unsigned long sd_flags; /* SDF_... */ | |
f50dfaf7 | 522 | struct gfs2_sb_host sd_sb; |
b3b94faa DT |
523 | |
524 | /* Constants computed on mount */ | |
525 | ||
cd915493 SW |
526 | u32 sd_fsb2bb; |
527 | u32 sd_fsb2bb_shift; | |
528 | u32 sd_diptrs; /* Number of pointers in a dinode */ | |
529 | u32 sd_inptrs; /* Number of pointers in a indirect block */ | |
530 | u32 sd_jbsize; /* Size of a journaled data block */ | |
531 | u32 sd_hash_bsize; /* sizeof(exhash block) */ | |
532 | u32 sd_hash_bsize_shift; | |
533 | u32 sd_hash_ptrs; /* Number of pointers in a hash block */ | |
534 | u32 sd_qc_per_block; | |
535 | u32 sd_max_dirres; /* Max blocks needed to add a directory entry */ | |
536 | u32 sd_max_height; /* Max height of a file's metadata tree */ | |
ecc30c79 | 537 | u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1]; |
cd915493 | 538 | u32 sd_max_jheight; /* Max height of journaled file's meta tree */ |
ecc30c79 | 539 | u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1]; |
b3b94faa DT |
540 | |
541 | struct gfs2_args sd_args; /* Mount arguments */ | |
542 | struct gfs2_tune sd_tune; /* Filesystem tuning structure */ | |
543 | ||
544 | /* Lock Stuff */ | |
545 | ||
546 | struct lm_lockstruct sd_lockstruct; | |
b3b94faa DT |
547 | struct gfs2_holder sd_live_gh; |
548 | struct gfs2_glock *sd_rename_gl; | |
549 | struct gfs2_glock *sd_trans_gl; | |
e402746a SW |
550 | wait_queue_head_t sd_glock_wait; |
551 | atomic_t sd_glock_disposal; | |
b3b94faa DT |
552 | |
553 | /* Inode Stuff */ | |
554 | ||
9b8df98f SW |
555 | struct dentry *sd_master_dir; |
556 | struct dentry *sd_root_dir; | |
557 | ||
f42faf4f | 558 | struct inode *sd_jindex; |
f42faf4f | 559 | struct inode *sd_statfs_inode; |
f42faf4f | 560 | struct inode *sd_sc_inode; |
f42faf4f SW |
561 | struct inode *sd_qc_inode; |
562 | struct inode *sd_rindex; | |
563 | struct inode *sd_quota_inode; | |
b3b94faa | 564 | |
b3b94faa DT |
565 | /* StatFS stuff */ |
566 | ||
567 | spinlock_t sd_statfs_spin; | |
bd209cc0 AV |
568 | struct gfs2_statfs_change_host sd_statfs_master; |
569 | struct gfs2_statfs_change_host sd_statfs_local; | |
3d3c10f2 | 570 | int sd_statfs_force_sync; |
b3b94faa DT |
571 | |
572 | /* Resource group stuff */ | |
573 | ||
cf45b752 | 574 | int sd_rindex_uptodate; |
b3b94faa | 575 | spinlock_t sd_rindex_spin; |
f55ab26a | 576 | struct mutex sd_rindex_mutex; |
b3b94faa DT |
577 | struct list_head sd_rindex_list; |
578 | struct list_head sd_rindex_mru_list; | |
b3b94faa DT |
579 | struct gfs2_rgrpd *sd_rindex_forward; |
580 | unsigned int sd_rgrps; | |
3921120e | 581 | unsigned int sd_max_rg_data; |
b3b94faa DT |
582 | |
583 | /* Journal index stuff */ | |
584 | ||
585 | struct list_head sd_jindex_list; | |
586 | spinlock_t sd_jindex_spin; | |
f55ab26a | 587 | struct mutex sd_jindex_mutex; |
b3b94faa | 588 | unsigned int sd_journals; |
b3b94faa DT |
589 | |
590 | struct gfs2_jdesc *sd_jdesc; | |
591 | struct gfs2_holder sd_journal_gh; | |
592 | struct gfs2_holder sd_jinode_gh; | |
593 | ||
b3b94faa | 594 | struct gfs2_holder sd_sc_gh; |
b3b94faa DT |
595 | struct gfs2_holder sd_qc_gh; |
596 | ||
597 | /* Daemon stuff */ | |
598 | ||
b3b94faa DT |
599 | struct task_struct *sd_logd_process; |
600 | struct task_struct *sd_quotad_process; | |
b3b94faa | 601 | |
b3b94faa DT |
602 | /* Quota stuff */ |
603 | ||
604 | struct list_head sd_quota_list; | |
605 | atomic_t sd_quota_count; | |
f55ab26a | 606 | struct mutex sd_quota_mutex; |
37b2c837 | 607 | wait_queue_head_t sd_quota_wait; |
813e0c46 SW |
608 | struct list_head sd_trunc_list; |
609 | spinlock_t sd_trunc_lock; | |
b3b94faa DT |
610 | |
611 | unsigned int sd_quota_slots; | |
612 | unsigned int sd_quota_chunks; | |
613 | unsigned char **sd_quota_bitmap; | |
614 | ||
cd915493 | 615 | u64 sd_quota_sync_gen; |
b3b94faa DT |
616 | |
617 | /* Log stuff */ | |
618 | ||
619 | spinlock_t sd_log_lock; | |
b3b94faa DT |
620 | |
621 | unsigned int sd_log_blks_reserved; | |
622 | unsigned int sd_log_commited_buf; | |
2332c443 | 623 | unsigned int sd_log_commited_databuf; |
2e95e3f6 | 624 | int sd_log_commited_revoke; |
b3b94faa | 625 | |
5e687eac | 626 | atomic_t sd_log_pinned; |
b3b94faa DT |
627 | unsigned int sd_log_num_buf; |
628 | unsigned int sd_log_num_revoke; | |
629 | unsigned int sd_log_num_rg; | |
630 | unsigned int sd_log_num_databuf; | |
f42faf4f | 631 | |
b3b94faa DT |
632 | struct list_head sd_log_le_buf; |
633 | struct list_head sd_log_le_revoke; | |
634 | struct list_head sd_log_le_rg; | |
635 | struct list_head sd_log_le_databuf; | |
d7b616e2 | 636 | struct list_head sd_log_le_ordered; |
b3b94faa | 637 | |
5e687eac BM |
638 | atomic_t sd_log_thresh1; |
639 | atomic_t sd_log_thresh2; | |
fd041f0b | 640 | atomic_t sd_log_blks_free; |
5e687eac BM |
641 | wait_queue_head_t sd_log_waitq; |
642 | wait_queue_head_t sd_logd_waitq; | |
b3b94faa | 643 | |
cd915493 | 644 | u64 sd_log_sequence; |
b3b94faa DT |
645 | unsigned int sd_log_head; |
646 | unsigned int sd_log_tail; | |
b3b94faa DT |
647 | int sd_log_idle; |
648 | ||
484adff8 | 649 | struct rw_semaphore sd_log_flush_lock; |
16615be1 SW |
650 | atomic_t sd_log_in_flight; |
651 | wait_queue_head_t sd_log_flush_wait; | |
b3b94faa DT |
652 | |
653 | unsigned int sd_log_flush_head; | |
cd915493 | 654 | u64 sd_log_flush_wrapped; |
b3b94faa | 655 | |
d6a079e8 | 656 | spinlock_t sd_ail_lock; |
b3b94faa DT |
657 | struct list_head sd_ail1_list; |
658 | struct list_head sd_ail2_list; | |
cd915493 | 659 | u64 sd_ail_sync_gen; |
b3b94faa DT |
660 | |
661 | /* Replay stuff */ | |
662 | ||
663 | struct list_head sd_revoke_list; | |
664 | unsigned int sd_replay_tail; | |
665 | ||
666 | unsigned int sd_found_blocks; | |
667 | unsigned int sd_found_revokes; | |
668 | unsigned int sd_replayed_blocks; | |
669 | ||
670 | /* For quiescing the filesystem */ | |
671 | ||
672 | struct gfs2_holder sd_freeze_gh; | |
f55ab26a | 673 | struct mutex sd_freeze_lock; |
b3b94faa DT |
674 | unsigned int sd_freeze_count; |
675 | ||
b3b94faa DT |
676 | char sd_fsname[GFS2_FSNAME_LEN]; |
677 | char sd_table_name[GFS2_FSNAME_LEN]; | |
678 | char sd_proto_name[GFS2_FSNAME_LEN]; | |
679 | ||
680 | /* Debugging crud */ | |
681 | ||
682 | unsigned long sd_last_warning; | |
5f882096 RP |
683 | struct dentry *debugfs_dir; /* debugfs directory */ |
684 | struct dentry *debugfs_dentry_glocks; /* for debugfs */ | |
b3b94faa DT |
685 | }; |
686 | ||
687 | #endif /* __INCORE_DOT_H__ */ | |
688 |