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1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
3 | * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. | |
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 | |
7 | * of the GNU General Public License v.2. | |
8 | */ | |
9 | ||
10 | #ifndef __INCORE_DOT_H__ | |
11 | #define __INCORE_DOT_H__ | |
12 | ||
13 | #define DIO_FORCE 0x00000001 | |
14 | #define DIO_CLEAN 0x00000002 | |
15 | #define DIO_DIRTY 0x00000004 | |
16 | #define DIO_START 0x00000008 | |
17 | #define DIO_WAIT 0x00000010 | |
18 | #define DIO_METADATA 0x00000020 | |
19 | #define DIO_DATA 0x00000040 | |
20 | #define DIO_RELEASE 0x00000080 | |
21 | #define DIO_ALL 0x00000100 | |
22 | ||
23 | struct gfs2_log_operations; | |
24 | struct gfs2_log_element; | |
25 | struct gfs2_bitmap; | |
26 | struct gfs2_rgrpd; | |
27 | struct gfs2_bufdata; | |
28 | struct gfs2_databuf; | |
29 | struct gfs2_glock_operations; | |
30 | struct gfs2_holder; | |
31 | struct gfs2_glock; | |
32 | struct gfs2_alloc; | |
33 | struct gfs2_inode; | |
34 | struct gfs2_file; | |
35 | struct gfs2_revoke; | |
36 | struct gfs2_revoke_replay; | |
37 | struct gfs2_unlinked; | |
38 | struct gfs2_quota_data; | |
39 | struct gfs2_log_buf; | |
40 | struct gfs2_trans; | |
41 | struct gfs2_ail; | |
42 | struct gfs2_jdesc; | |
43 | struct gfs2_args; | |
44 | struct gfs2_tune; | |
45 | struct gfs2_gl_hash_bucket; | |
46 | struct gfs2_sbd; | |
47 | ||
48 | typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret); | |
49 | ||
50 | /* | |
51 | * Structure of operations that are associated with each | |
52 | * type of element in the log. | |
53 | */ | |
54 | ||
55 | struct gfs2_log_operations { | |
56 | void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le); | |
57 | void (*lo_incore_commit) (struct gfs2_sbd *sdp, struct gfs2_trans *tr); | |
58 | void (*lo_before_commit) (struct gfs2_sbd *sdp); | |
59 | void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai); | |
60 | void (*lo_before_scan) (struct gfs2_jdesc *jd, | |
61 | struct gfs2_log_header *head, int pass); | |
62 | int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start, | |
63 | struct gfs2_log_descriptor *ld, __be64 *ptr, | |
64 | int pass); | |
65 | void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass); | |
66 | char *lo_name; | |
67 | }; | |
68 | ||
69 | struct gfs2_log_element { | |
70 | struct list_head le_list; | |
71 | struct gfs2_log_operations *le_ops; | |
72 | }; | |
73 | ||
74 | struct gfs2_bitmap { | |
75 | struct buffer_head *bi_bh; | |
76 | char *bi_clone; | |
77 | uint32_t bi_offset; | |
78 | uint32_t bi_start; | |
79 | uint32_t bi_len; | |
80 | }; | |
81 | ||
82 | struct gfs2_rgrpd { | |
83 | struct list_head rd_list; /* Link with superblock */ | |
84 | struct list_head rd_list_mru; | |
85 | struct list_head rd_recent; /* Recently used rgrps */ | |
86 | struct gfs2_glock *rd_gl; /* Glock for this rgrp */ | |
87 | struct gfs2_rindex rd_ri; | |
88 | struct gfs2_rgrp rd_rg; | |
89 | uint64_t rd_rg_vn; | |
90 | struct gfs2_bitmap *rd_bits; | |
91 | unsigned int rd_bh_count; | |
92 | struct semaphore rd_mutex; | |
93 | uint32_t rd_free_clone; | |
94 | struct gfs2_log_element rd_le; | |
95 | uint32_t rd_last_alloc_data; | |
96 | uint32_t rd_last_alloc_meta; | |
97 | struct gfs2_sbd *rd_sbd; | |
98 | }; | |
99 | ||
100 | enum gfs2_state_bits { | |
101 | BH_Pinned = BH_PrivateStart, | |
102 | }; | |
103 | ||
104 | BUFFER_FNS(Pinned, pinned) | |
105 | TAS_BUFFER_FNS(Pinned, pinned) | |
106 | ||
107 | struct gfs2_bufdata { | |
108 | struct buffer_head *bd_bh; | |
109 | struct gfs2_glock *bd_gl; | |
110 | ||
111 | struct list_head bd_list_tr; | |
112 | struct gfs2_log_element bd_le; | |
113 | ||
114 | struct gfs2_ail *bd_ail; | |
115 | struct list_head bd_ail_st_list; | |
116 | struct list_head bd_ail_gl_list; | |
117 | }; | |
118 | ||
119 | struct gfs2_databuf { | |
120 | struct gfs2_log_element db_le; | |
121 | struct buffer_head *db_bh; | |
122 | }; | |
123 | ||
124 | struct gfs2_glock_operations { | |
125 | void (*go_xmote_th) (struct gfs2_glock * gl, unsigned int state, | |
126 | int flags); | |
127 | void (*go_xmote_bh) (struct gfs2_glock * gl); | |
128 | void (*go_drop_th) (struct gfs2_glock * gl); | |
129 | void (*go_drop_bh) (struct gfs2_glock * gl); | |
130 | void (*go_sync) (struct gfs2_glock * gl, int flags); | |
131 | void (*go_inval) (struct gfs2_glock * gl, int flags); | |
132 | int (*go_demote_ok) (struct gfs2_glock * gl); | |
133 | int (*go_lock) (struct gfs2_holder * gh); | |
134 | void (*go_unlock) (struct gfs2_holder * gh); | |
135 | void (*go_callback) (struct gfs2_glock * gl, unsigned int state); | |
136 | void (*go_greedy) (struct gfs2_glock * gl); | |
137 | int go_type; | |
138 | }; | |
139 | ||
140 | enum { | |
141 | /* Actions */ | |
142 | HIF_MUTEX = 0, | |
143 | HIF_PROMOTE = 1, | |
144 | HIF_DEMOTE = 2, | |
145 | HIF_GREEDY = 3, | |
146 | ||
147 | /* States */ | |
148 | HIF_ALLOCED = 4, | |
149 | HIF_DEALLOC = 5, | |
150 | HIF_HOLDER = 6, | |
151 | HIF_FIRST = 7, | |
152 | HIF_RECURSE = 8, | |
153 | HIF_ABORTED = 9, | |
154 | }; | |
155 | ||
156 | struct gfs2_holder { | |
157 | struct list_head gh_list; | |
158 | ||
159 | struct gfs2_glock *gh_gl; | |
160 | struct task_struct *gh_owner; | |
161 | unsigned int gh_state; | |
162 | int gh_flags; | |
163 | ||
164 | int gh_error; | |
165 | unsigned long gh_iflags; | |
166 | struct completion gh_wait; | |
167 | }; | |
168 | ||
169 | enum { | |
170 | GLF_PLUG = 0, | |
171 | GLF_LOCK = 1, | |
172 | GLF_STICKY = 2, | |
173 | GLF_PREFETCH = 3, | |
174 | GLF_SYNC = 4, | |
175 | GLF_DIRTY = 5, | |
176 | GLF_SKIP_WAITERS2 = 6, | |
177 | GLF_GREEDY = 7, | |
178 | }; | |
179 | ||
180 | struct gfs2_glock { | |
181 | struct list_head gl_list; | |
182 | unsigned long gl_flags; /* GLF_... */ | |
183 | struct lm_lockname gl_name; | |
184 | struct kref gl_ref; | |
185 | ||
186 | spinlock_t gl_spin; | |
187 | ||
188 | unsigned int gl_state; | |
189 | struct list_head gl_holders; | |
190 | struct list_head gl_waiters1; /* HIF_MUTEX */ | |
191 | struct list_head gl_waiters2; /* HIF_DEMOTE, HIF_GREEDY */ | |
192 | struct list_head gl_waiters3; /* HIF_PROMOTE */ | |
193 | ||
194 | struct gfs2_glock_operations *gl_ops; | |
195 | ||
196 | struct gfs2_holder *gl_req_gh; | |
197 | gfs2_glop_bh_t gl_req_bh; | |
198 | ||
199 | lm_lock_t *gl_lock; | |
200 | char *gl_lvb; | |
201 | atomic_t gl_lvb_count; | |
202 | ||
203 | uint64_t gl_vn; | |
204 | unsigned long gl_stamp; | |
205 | void *gl_object; | |
206 | ||
207 | struct gfs2_gl_hash_bucket *gl_bucket; | |
208 | struct list_head gl_reclaim; | |
209 | ||
210 | struct gfs2_sbd *gl_sbd; | |
211 | ||
212 | struct inode *gl_aspace; | |
213 | struct gfs2_log_element gl_le; | |
214 | struct list_head gl_ail_list; | |
215 | atomic_t gl_ail_count; | |
216 | }; | |
217 | ||
218 | struct gfs2_alloc { | |
219 | /* Quota stuff */ | |
220 | ||
221 | unsigned int al_qd_num; | |
222 | struct gfs2_quota_data *al_qd[4]; | |
223 | struct gfs2_holder al_qd_ghs[4]; | |
224 | ||
225 | /* Filled in by the caller to gfs2_inplace_reserve() */ | |
226 | ||
227 | uint32_t al_requested; | |
228 | ||
229 | /* Filled in by gfs2_inplace_reserve() */ | |
230 | ||
231 | char *al_file; | |
232 | unsigned int al_line; | |
233 | struct gfs2_holder al_ri_gh; | |
234 | struct gfs2_holder al_rgd_gh; | |
235 | struct gfs2_rgrpd *al_rgd; | |
236 | ||
237 | /* Filled in by gfs2_alloc_*() */ | |
238 | ||
239 | uint32_t al_alloced; | |
240 | }; | |
241 | ||
242 | enum { | |
243 | GIF_MIN_INIT = 0, | |
244 | GIF_QD_LOCKED = 1, | |
245 | GIF_PAGED = 2, | |
246 | GIF_SW_PAGED = 3, | |
247 | }; | |
248 | ||
249 | struct gfs2_inode { | |
250 | struct gfs2_inum i_num; | |
251 | ||
252 | atomic_t i_count; | |
253 | unsigned long i_flags; /* GIF_... */ | |
254 | ||
255 | uint64_t i_vn; | |
256 | struct gfs2_dinode i_di; | |
257 | ||
258 | struct gfs2_glock *i_gl; | |
259 | struct gfs2_sbd *i_sbd; | |
260 | struct inode *i_vnode; | |
261 | ||
262 | struct gfs2_holder i_iopen_gh; | |
263 | ||
264 | struct gfs2_alloc i_alloc; | |
265 | uint64_t i_last_rg_alloc; | |
266 | ||
267 | spinlock_t i_spin; | |
268 | struct rw_semaphore i_rw_mutex; | |
269 | ||
270 | unsigned int i_greedy; | |
271 | unsigned long i_last_pfault; | |
272 | ||
273 | struct buffer_head *i_cache[GFS2_MAX_META_HEIGHT]; | |
274 | }; | |
275 | ||
276 | enum { | |
277 | GFF_DID_DIRECT_ALLOC = 0, | |
278 | }; | |
279 | ||
280 | struct gfs2_file { | |
281 | unsigned long f_flags; /* GFF_... */ | |
282 | ||
283 | struct semaphore f_fl_mutex; | |
284 | struct gfs2_holder f_fl_gh; | |
285 | ||
286 | struct gfs2_inode *f_inode; | |
287 | struct file *f_vfile; | |
288 | }; | |
289 | ||
290 | struct gfs2_revoke { | |
291 | struct gfs2_log_element rv_le; | |
292 | uint64_t rv_blkno; | |
293 | }; | |
294 | ||
295 | struct gfs2_revoke_replay { | |
296 | struct list_head rr_list; | |
297 | uint64_t rr_blkno; | |
298 | unsigned int rr_where; | |
299 | }; | |
300 | ||
301 | enum { | |
302 | ULF_LOCKED = 0, | |
303 | }; | |
304 | ||
305 | struct gfs2_unlinked { | |
306 | struct list_head ul_list; | |
307 | unsigned int ul_count; | |
308 | struct gfs2_unlinked_tag ul_ut; | |
309 | unsigned long ul_flags; /* ULF_... */ | |
310 | unsigned int ul_slot; | |
311 | }; | |
312 | ||
313 | enum { | |
314 | QDF_USER = 0, | |
315 | QDF_CHANGE = 1, | |
316 | QDF_LOCKED = 2, | |
317 | }; | |
318 | ||
319 | struct gfs2_quota_data { | |
320 | struct list_head qd_list; | |
321 | unsigned int qd_count; | |
322 | ||
323 | uint32_t qd_id; | |
324 | unsigned long qd_flags; /* QDF_... */ | |
325 | ||
326 | int64_t qd_change; | |
327 | int64_t qd_change_sync; | |
328 | ||
329 | unsigned int qd_slot; | |
330 | unsigned int qd_slot_count; | |
331 | ||
332 | struct buffer_head *qd_bh; | |
333 | struct gfs2_quota_change *qd_bh_qc; | |
334 | unsigned int qd_bh_count; | |
335 | ||
336 | struct gfs2_glock *qd_gl; | |
337 | struct gfs2_quota_lvb qd_qb; | |
338 | ||
339 | uint64_t qd_sync_gen; | |
340 | unsigned long qd_last_warn; | |
341 | unsigned long qd_last_touched; | |
342 | }; | |
343 | ||
344 | struct gfs2_log_buf { | |
345 | struct list_head lb_list; | |
346 | struct buffer_head *lb_bh; | |
347 | struct buffer_head *lb_real; | |
348 | }; | |
349 | ||
350 | struct gfs2_trans { | |
351 | char *tr_file; | |
352 | unsigned int tr_line; | |
353 | ||
354 | unsigned int tr_blocks; | |
355 | unsigned int tr_revokes; | |
356 | unsigned int tr_reserved; | |
357 | ||
358 | struct gfs2_holder *tr_t_gh; | |
359 | ||
360 | int tr_touched; | |
361 | ||
362 | unsigned int tr_num_buf; | |
363 | unsigned int tr_num_buf_new; | |
364 | unsigned int tr_num_buf_rm; | |
365 | struct list_head tr_list_buf; | |
366 | ||
367 | unsigned int tr_num_revoke; | |
368 | unsigned int tr_num_revoke_rm; | |
369 | }; | |
370 | ||
371 | struct gfs2_ail { | |
372 | struct list_head ai_list; | |
373 | ||
374 | unsigned int ai_first; | |
375 | struct list_head ai_ail1_list; | |
376 | struct list_head ai_ail2_list; | |
377 | ||
378 | uint64_t ai_sync_gen; | |
379 | }; | |
380 | ||
381 | struct gfs2_jdesc { | |
382 | struct list_head jd_list; | |
383 | ||
384 | struct gfs2_inode *jd_inode; | |
385 | unsigned int jd_jid; | |
386 | int jd_dirty; | |
387 | ||
388 | unsigned int jd_blocks; | |
389 | }; | |
390 | ||
391 | #define GFS2_GLOCKD_DEFAULT 1 | |
392 | #define GFS2_GLOCKD_MAX 16 | |
393 | ||
394 | #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF | |
395 | #define GFS2_QUOTA_OFF 0 | |
396 | #define GFS2_QUOTA_ACCOUNT 1 | |
397 | #define GFS2_QUOTA_ON 2 | |
398 | ||
399 | #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED | |
400 | #define GFS2_DATA_WRITEBACK 1 | |
401 | #define GFS2_DATA_ORDERED 2 | |
402 | ||
403 | struct gfs2_args { | |
404 | char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */ | |
405 | char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */ | |
406 | char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */ | |
407 | int ar_spectator; /* Don't get a journal because we're always RO */ | |
408 | int ar_ignore_local_fs; /* Don't optimize even if local_fs is 1 */ | |
409 | int ar_localflocks; /* Let the VFS do flock|fcntl locks for us */ | |
410 | int ar_localcaching; /* Local-style caching (dangerous on multihost) */ | |
411 | int ar_debug; /* Oops on errors instead of trying to be graceful */ | |
412 | int ar_upgrade; /* Upgrade ondisk/multihost format */ | |
413 | unsigned int ar_num_glockd; /* Number of glockd threads */ | |
414 | int ar_posix_acl; /* Enable posix acls */ | |
415 | int ar_quota; /* off/account/on */ | |
416 | int ar_suiddir; /* suiddir support */ | |
417 | int ar_data; /* ordered/writeback */ | |
418 | }; | |
419 | ||
420 | struct gfs2_tune { | |
421 | spinlock_t gt_spin; | |
422 | ||
423 | unsigned int gt_ilimit; | |
424 | unsigned int gt_ilimit_tries; | |
425 | unsigned int gt_ilimit_min; | |
426 | unsigned int gt_demote_secs; /* Cache retention for unheld glock */ | |
427 | unsigned int gt_incore_log_blocks; | |
428 | unsigned int gt_log_flush_secs; | |
429 | unsigned int gt_jindex_refresh_secs; /* Check for new journal index */ | |
430 | ||
431 | unsigned int gt_scand_secs; | |
432 | unsigned int gt_recoverd_secs; | |
433 | unsigned int gt_logd_secs; | |
434 | unsigned int gt_quotad_secs; | |
435 | unsigned int gt_inoded_secs; | |
436 | ||
437 | unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */ | |
438 | unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */ | |
439 | unsigned int gt_quota_scale_num; /* Numerator */ | |
440 | unsigned int gt_quota_scale_den; /* Denominator */ | |
441 | unsigned int gt_quota_cache_secs; | |
442 | unsigned int gt_quota_quantum; /* Secs between syncs to quota file */ | |
443 | unsigned int gt_atime_quantum; /* Min secs between atime updates */ | |
444 | unsigned int gt_new_files_jdata; | |
445 | unsigned int gt_new_files_directio; | |
446 | unsigned int gt_max_atomic_write; /* Split big writes into this size */ | |
447 | unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */ | |
448 | unsigned int gt_lockdump_size; | |
449 | unsigned int gt_stall_secs; /* Detects trouble! */ | |
450 | unsigned int gt_complain_secs; | |
451 | unsigned int gt_reclaim_limit; /* Max num of glocks in reclaim list */ | |
452 | unsigned int gt_entries_per_readdir; | |
453 | unsigned int gt_prefetch_secs; /* Usage window for prefetched glocks */ | |
454 | unsigned int gt_greedy_default; | |
455 | unsigned int gt_greedy_quantum; | |
456 | unsigned int gt_greedy_max; | |
457 | unsigned int gt_statfs_quantum; | |
458 | unsigned int gt_statfs_slow; | |
459 | }; | |
460 | ||
461 | struct gfs2_gl_hash_bucket { | |
462 | rwlock_t hb_lock; | |
463 | struct list_head hb_list; | |
464 | }; | |
465 | ||
466 | enum { | |
467 | SDF_JOURNAL_CHECKED = 0, | |
468 | SDF_JOURNAL_LIVE = 1, | |
469 | SDF_SHUTDOWN = 2, | |
470 | SDF_NOATIME = 3, | |
471 | }; | |
472 | ||
473 | #define GFS2_GL_HASH_SHIFT 13 | |
474 | #define GFS2_GL_HASH_SIZE (1 << GFS2_GL_HASH_SHIFT) | |
475 | #define GFS2_GL_HASH_MASK (GFS2_GL_HASH_SIZE - 1) | |
476 | #define GFS2_FSNAME_LEN 256 | |
477 | ||
478 | struct gfs2_sbd { | |
479 | struct super_block *sd_vfs; | |
480 | struct kobject sd_kobj; | |
481 | unsigned long sd_flags; /* SDF_... */ | |
482 | struct gfs2_sb sd_sb; | |
483 | ||
484 | /* Constants computed on mount */ | |
485 | ||
486 | uint32_t sd_fsb2bb; | |
487 | uint32_t sd_fsb2bb_shift; | |
488 | uint32_t sd_diptrs; /* Number of pointers in a dinode */ | |
489 | uint32_t sd_inptrs; /* Number of pointers in a indirect block */ | |
490 | uint32_t sd_jbsize; /* Size of a journaled data block */ | |
491 | uint32_t sd_hash_bsize; /* sizeof(exhash block) */ | |
492 | uint32_t sd_hash_bsize_shift; | |
493 | uint32_t sd_hash_ptrs; /* Number of pointers in a hash block */ | |
494 | uint32_t sd_ut_per_block; | |
495 | uint32_t sd_qc_per_block; | |
496 | uint32_t sd_max_dirres; /* Max blocks needed to add a directory entry */ | |
497 | uint32_t sd_max_height; /* Max height of a file's metadata tree */ | |
498 | uint64_t sd_heightsize[GFS2_MAX_META_HEIGHT]; | |
499 | uint32_t sd_max_jheight; /* Max height of journaled file's meta tree */ | |
500 | uint64_t sd_jheightsize[GFS2_MAX_META_HEIGHT]; | |
501 | ||
502 | struct gfs2_args sd_args; /* Mount arguments */ | |
503 | struct gfs2_tune sd_tune; /* Filesystem tuning structure */ | |
504 | ||
505 | /* Lock Stuff */ | |
506 | ||
507 | struct lm_lockstruct sd_lockstruct; | |
508 | struct gfs2_gl_hash_bucket sd_gl_hash[GFS2_GL_HASH_SIZE]; | |
509 | struct list_head sd_reclaim_list; | |
510 | spinlock_t sd_reclaim_lock; | |
511 | wait_queue_head_t sd_reclaim_wq; | |
512 | atomic_t sd_reclaim_count; | |
513 | struct gfs2_holder sd_live_gh; | |
514 | struct gfs2_glock *sd_rename_gl; | |
515 | struct gfs2_glock *sd_trans_gl; | |
516 | struct semaphore sd_invalidate_inodes_mutex; | |
517 | ||
518 | /* Inode Stuff */ | |
519 | ||
520 | struct gfs2_inode *sd_master_dir; | |
521 | struct gfs2_inode *sd_jindex; | |
522 | struct gfs2_inode *sd_inum_inode; | |
523 | struct gfs2_inode *sd_statfs_inode; | |
524 | struct gfs2_inode *sd_ir_inode; | |
525 | struct gfs2_inode *sd_sc_inode; | |
526 | struct gfs2_inode *sd_ut_inode; | |
527 | struct gfs2_inode *sd_qc_inode; | |
528 | struct gfs2_inode *sd_rindex; | |
529 | struct gfs2_inode *sd_quota_inode; | |
530 | struct gfs2_inode *sd_root_dir; | |
531 | ||
532 | /* Inum stuff */ | |
533 | ||
534 | struct semaphore sd_inum_mutex; | |
535 | ||
536 | /* StatFS stuff */ | |
537 | ||
538 | spinlock_t sd_statfs_spin; | |
539 | struct semaphore sd_statfs_mutex; | |
540 | struct gfs2_statfs_change sd_statfs_master; | |
541 | struct gfs2_statfs_change sd_statfs_local; | |
542 | unsigned long sd_statfs_sync_time; | |
543 | ||
544 | /* Resource group stuff */ | |
545 | ||
546 | uint64_t sd_rindex_vn; | |
547 | spinlock_t sd_rindex_spin; | |
548 | struct semaphore sd_rindex_mutex; | |
549 | struct list_head sd_rindex_list; | |
550 | struct list_head sd_rindex_mru_list; | |
551 | struct list_head sd_rindex_recent_list; | |
552 | struct gfs2_rgrpd *sd_rindex_forward; | |
553 | unsigned int sd_rgrps; | |
554 | ||
555 | /* Journal index stuff */ | |
556 | ||
557 | struct list_head sd_jindex_list; | |
558 | spinlock_t sd_jindex_spin; | |
559 | struct semaphore sd_jindex_mutex; | |
560 | unsigned int sd_journals; | |
561 | unsigned long sd_jindex_refresh_time; | |
562 | ||
563 | struct gfs2_jdesc *sd_jdesc; | |
564 | struct gfs2_holder sd_journal_gh; | |
565 | struct gfs2_holder sd_jinode_gh; | |
566 | ||
567 | struct gfs2_holder sd_ir_gh; | |
568 | struct gfs2_holder sd_sc_gh; | |
569 | struct gfs2_holder sd_ut_gh; | |
570 | struct gfs2_holder sd_qc_gh; | |
571 | ||
572 | /* Daemon stuff */ | |
573 | ||
574 | struct task_struct *sd_scand_process; | |
575 | struct task_struct *sd_recoverd_process; | |
576 | struct task_struct *sd_logd_process; | |
577 | struct task_struct *sd_quotad_process; | |
578 | struct task_struct *sd_inoded_process; | |
579 | struct task_struct *sd_glockd_process[GFS2_GLOCKD_MAX]; | |
580 | unsigned int sd_glockd_num; | |
581 | ||
582 | /* Unlinked inode stuff */ | |
583 | ||
584 | struct list_head sd_unlinked_list; | |
585 | atomic_t sd_unlinked_count; | |
586 | spinlock_t sd_unlinked_spin; | |
587 | struct semaphore sd_unlinked_mutex; | |
588 | ||
589 | unsigned int sd_unlinked_slots; | |
590 | unsigned int sd_unlinked_chunks; | |
591 | unsigned char **sd_unlinked_bitmap; | |
592 | ||
593 | /* Quota stuff */ | |
594 | ||
595 | struct list_head sd_quota_list; | |
596 | atomic_t sd_quota_count; | |
597 | spinlock_t sd_quota_spin; | |
598 | struct semaphore sd_quota_mutex; | |
599 | ||
600 | unsigned int sd_quota_slots; | |
601 | unsigned int sd_quota_chunks; | |
602 | unsigned char **sd_quota_bitmap; | |
603 | ||
604 | uint64_t sd_quota_sync_gen; | |
605 | unsigned long sd_quota_sync_time; | |
606 | ||
607 | /* Log stuff */ | |
608 | ||
609 | spinlock_t sd_log_lock; | |
610 | atomic_t sd_log_trans_count; | |
611 | wait_queue_head_t sd_log_trans_wq; | |
612 | atomic_t sd_log_flush_count; | |
613 | wait_queue_head_t sd_log_flush_wq; | |
614 | ||
615 | unsigned int sd_log_blks_reserved; | |
616 | unsigned int sd_log_commited_buf; | |
617 | unsigned int sd_log_commited_revoke; | |
618 | ||
619 | unsigned int sd_log_num_gl; | |
620 | unsigned int sd_log_num_buf; | |
621 | unsigned int sd_log_num_revoke; | |
622 | unsigned int sd_log_num_rg; | |
623 | unsigned int sd_log_num_databuf; | |
624 | struct list_head sd_log_le_gl; | |
625 | struct list_head sd_log_le_buf; | |
626 | struct list_head sd_log_le_revoke; | |
627 | struct list_head sd_log_le_rg; | |
628 | struct list_head sd_log_le_databuf; | |
629 | ||
630 | unsigned int sd_log_blks_free; | |
631 | struct list_head sd_log_blks_list; | |
632 | wait_queue_head_t sd_log_blks_wait; | |
633 | ||
634 | uint64_t sd_log_sequence; | |
635 | unsigned int sd_log_head; | |
636 | unsigned int sd_log_tail; | |
637 | uint64_t sd_log_wraps; | |
638 | int sd_log_idle; | |
639 | ||
640 | unsigned long sd_log_flush_time; | |
641 | struct semaphore sd_log_flush_lock; | |
642 | struct list_head sd_log_flush_list; | |
643 | ||
644 | unsigned int sd_log_flush_head; | |
645 | uint64_t sd_log_flush_wrapped; | |
646 | ||
647 | struct list_head sd_ail1_list; | |
648 | struct list_head sd_ail2_list; | |
649 | uint64_t sd_ail_sync_gen; | |
650 | ||
651 | /* Replay stuff */ | |
652 | ||
653 | struct list_head sd_revoke_list; | |
654 | unsigned int sd_replay_tail; | |
655 | ||
656 | unsigned int sd_found_blocks; | |
657 | unsigned int sd_found_revokes; | |
658 | unsigned int sd_replayed_blocks; | |
659 | ||
660 | /* For quiescing the filesystem */ | |
661 | ||
662 | struct gfs2_holder sd_freeze_gh; | |
663 | struct semaphore sd_freeze_lock; | |
664 | unsigned int sd_freeze_count; | |
665 | ||
666 | /* Counters */ | |
667 | ||
668 | atomic_t sd_glock_count; | |
669 | atomic_t sd_glock_held_count; | |
670 | atomic_t sd_inode_count; | |
671 | atomic_t sd_bufdata_count; | |
672 | ||
673 | atomic_t sd_fh2dentry_misses; | |
674 | atomic_t sd_reclaimed; | |
675 | atomic_t sd_log_flush_incore; | |
676 | atomic_t sd_log_flush_ondisk; | |
677 | ||
678 | atomic_t sd_glock_nq_calls; | |
679 | atomic_t sd_glock_dq_calls; | |
680 | atomic_t sd_glock_prefetch_calls; | |
681 | atomic_t sd_lm_lock_calls; | |
682 | atomic_t sd_lm_unlock_calls; | |
683 | atomic_t sd_lm_callbacks; | |
684 | ||
685 | atomic_t sd_ops_address; | |
686 | atomic_t sd_ops_dentry; | |
687 | atomic_t sd_ops_export; | |
688 | atomic_t sd_ops_file; | |
689 | atomic_t sd_ops_inode; | |
690 | atomic_t sd_ops_super; | |
691 | atomic_t sd_ops_vm; | |
692 | ||
693 | char sd_fsname[GFS2_FSNAME_LEN]; | |
694 | char sd_table_name[GFS2_FSNAME_LEN]; | |
695 | char sd_proto_name[GFS2_FSNAME_LEN]; | |
696 | ||
697 | /* Debugging crud */ | |
698 | ||
699 | unsigned long sd_last_warning; | |
700 | }; | |
701 | ||
702 | #endif /* __INCORE_DOT_H__ */ | |
703 |