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1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
3 | * Copyright (C) 2004-2008 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 version 2. |
8 | */ |
9 | |
10 | #ifndef __INCORE_DOT_H__ |
11 | #define __INCORE_DOT_H__ |
12 | |
13 | #include <linux/fs.h> |
14 | #include <linux/workqueue.h> |
15 | #include <linux/slow-work.h> |
16 | #include <linux/dlm.h> |
17 | #include <linux/buffer_head.h> |
18 | |
19 | #define DIO_WAIT 0x00000010 |
20 | #define DIO_METADATA 0x00000020 |
21 | #define DIO_ALL 0x00000100 |
22 | |
23 | struct gfs2_log_operations; |
24 | struct gfs2_log_element; |
25 | struct gfs2_holder; |
26 | struct gfs2_glock; |
27 | struct gfs2_quota_data; |
28 | struct gfs2_trans; |
29 | struct gfs2_ail; |
30 | struct gfs2_jdesc; |
31 | struct gfs2_sbd; |
32 | struct lm_lockops; |
33 | |
34 | typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret); |
35 | |
36 | struct gfs2_log_header_host { |
37 | u64 lh_sequence; /* Sequence number of this transaction */ |
38 | u32 lh_flags; /* GFS2_LOG_HEAD_... */ |
39 | u32 lh_tail; /* Block number of log tail */ |
40 | u32 lh_blkno; |
41 | u32 lh_hash; |
42 | }; |
43 | |
44 | /* |
45 | * Structure of operations that are associated with each |
46 | * type of element in the log. |
47 | */ |
48 | |
49 | struct gfs2_log_operations { |
50 | void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le); |
51 | void (*lo_before_commit) (struct gfs2_sbd *sdp); |
52 | void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai); |
53 | void (*lo_before_scan) (struct gfs2_jdesc *jd, |
54 | struct gfs2_log_header_host *head, int pass); |
55 | int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start, |
56 | struct gfs2_log_descriptor *ld, __be64 *ptr, |
57 | int pass); |
58 | void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass); |
59 | const char *lo_name; |
60 | }; |
61 | |
62 | struct gfs2_log_element { |
63 | struct list_head le_list; |
64 | const struct gfs2_log_operations *le_ops; |
65 | }; |
66 | |
67 | #define GBF_FULL 1 |
68 | |
69 | struct gfs2_bitmap { |
70 | struct buffer_head *bi_bh; |
71 | char *bi_clone; |
72 | unsigned long bi_flags; |
73 | u32 bi_offset; |
74 | u32 bi_start; |
75 | u32 bi_len; |
76 | }; |
77 | |
78 | struct gfs2_rgrpd { |
79 | struct list_head rd_list; /* Link with superblock */ |
80 | struct list_head rd_list_mru; |
81 | struct gfs2_glock *rd_gl; /* Glock for this rgrp */ |
82 | u64 rd_addr; /* grp block disk address */ |
83 | u64 rd_data0; /* first data location */ |
84 | u32 rd_length; /* length of rgrp header in fs blocks */ |
85 | u32 rd_data; /* num of data blocks in rgrp */ |
86 | u32 rd_bitbytes; /* number of bytes in data bitmaps */ |
87 | u32 rd_free; |
88 | u32 rd_free_clone; |
89 | u32 rd_dinodes; |
90 | u64 rd_igeneration; |
91 | struct gfs2_bitmap *rd_bits; |
92 | struct mutex rd_mutex; |
93 | struct gfs2_log_element rd_le; |
94 | struct gfs2_sbd *rd_sbd; |
95 | unsigned int rd_bh_count; |
96 | u32 rd_last_alloc; |
97 | u32 rd_flags; |
98 | #define GFS2_RDF_CHECK 0x10000000 /* check for unlinked inodes */ |
99 | #define GFS2_RDF_UPTODATE 0x20000000 /* rg is up to date */ |
100 | #define GFS2_RDF_ERROR 0x40000000 /* error in rg */ |
101 | #define GFS2_RDF_MASK 0xf0000000 /* mask for internal flags */ |
102 | }; |
103 | |
104 | enum gfs2_state_bits { |
105 | BH_Pinned = BH_PrivateStart, |
106 | BH_Escaped = BH_PrivateStart + 1, |
107 | }; |
108 | |
109 | BUFFER_FNS(Pinned, pinned) |
110 | TAS_BUFFER_FNS(Pinned, pinned) |
111 | BUFFER_FNS(Escaped, escaped) |
112 | TAS_BUFFER_FNS(Escaped, escaped) |
113 | |
114 | struct gfs2_bufdata { |
115 | struct buffer_head *bd_bh; |
116 | struct gfs2_glock *bd_gl; |
117 | |
118 | union { |
119 | struct list_head list_tr; |
120 | u64 blkno; |
121 | } u; |
122 | #define bd_list_tr u.list_tr |
123 | #define bd_blkno u.blkno |
124 | |
125 | struct gfs2_log_element bd_le; |
126 | |
127 | struct gfs2_ail *bd_ail; |
128 | struct list_head bd_ail_st_list; |
129 | struct list_head bd_ail_gl_list; |
130 | }; |
131 | |
132 | /* |
133 | * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a |
134 | * prefix of lock_dlm_ gets awkward. |
135 | */ |
136 | |
137 | #define GDLM_STRNAME_BYTES 25 |
138 | #define GDLM_LVB_SIZE 32 |
139 | |
140 | enum { |
141 | DFL_BLOCK_LOCKS = 0, |
142 | }; |
143 | |
144 | struct lm_lockname { |
145 | u64 ln_number; |
146 | unsigned int ln_type; |
147 | }; |
148 | |
149 | #define lm_name_equal(name1, name2) \ |
150 | (((name1)->ln_number == (name2)->ln_number) && \ |
151 | ((name1)->ln_type == (name2)->ln_type)) |
152 | |
153 | |
154 | struct gfs2_glock_operations { |
155 | void (*go_xmote_th) (struct gfs2_glock *gl); |
156 | int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh); |
157 | void (*go_inval) (struct gfs2_glock *gl, int flags); |
158 | int (*go_demote_ok) (const struct gfs2_glock *gl); |
159 | int (*go_lock) (struct gfs2_holder *gh); |
160 | void (*go_unlock) (struct gfs2_holder *gh); |
161 | int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl); |
162 | void (*go_callback) (struct gfs2_glock *gl); |
163 | const int go_type; |
164 | const unsigned long go_min_hold_time; |
165 | }; |
166 | |
167 | enum { |
168 | /* States */ |
169 | HIF_HOLDER = 6, /* Set for gh that "holds" the glock */ |
170 | HIF_FIRST = 7, |
171 | HIF_WAIT = 10, |
172 | }; |
173 | |
174 | struct gfs2_holder { |
175 | struct list_head gh_list; |
176 | |
177 | struct gfs2_glock *gh_gl; |
178 | struct pid *gh_owner_pid; |
179 | unsigned int gh_state; |
180 | unsigned gh_flags; |
181 | |
182 | int gh_error; |
183 | unsigned long gh_iflags; /* HIF_... */ |
184 | unsigned long gh_ip; |
185 | }; |
186 | |
187 | enum { |
188 | GLF_LOCK = 1, |
189 | GLF_DEMOTE = 3, |
190 | GLF_PENDING_DEMOTE = 4, |
191 | GLF_DEMOTE_IN_PROGRESS = 5, |
192 | GLF_DIRTY = 6, |
193 | GLF_LFLUSH = 7, |
194 | GLF_INVALIDATE_IN_PROGRESS = 8, |
195 | GLF_REPLY_PENDING = 9, |
196 | GLF_INITIAL = 10, |
197 | GLF_FROZEN = 11, |
198 | }; |
199 | |
200 | struct gfs2_glock { |
201 | struct hlist_node gl_list; |
202 | unsigned long gl_flags; /* GLF_... */ |
203 | struct lm_lockname gl_name; |
204 | atomic_t gl_ref; |
205 | |
206 | spinlock_t gl_spin; |
207 | |
208 | unsigned int gl_state; |
209 | unsigned int gl_target; |
210 | unsigned int gl_reply; |
211 | unsigned int gl_hash; |
212 | unsigned int gl_req; |
213 | unsigned int gl_demote_state; /* state requested by remote node */ |
214 | unsigned long gl_demote_time; /* time of first demote request */ |
215 | struct list_head gl_holders; |
216 | |
217 | const struct gfs2_glock_operations *gl_ops; |
218 | char gl_strname[GDLM_STRNAME_BYTES]; |
219 | struct dlm_lksb gl_lksb; |
220 | char gl_lvb[32]; |
221 | unsigned long gl_tchange; |
222 | void *gl_object; |
223 | |
224 | struct list_head gl_lru; |
225 | |
226 | struct gfs2_sbd *gl_sbd; |
227 | |
228 | struct inode *gl_aspace; |
229 | struct list_head gl_ail_list; |
230 | atomic_t gl_ail_count; |
231 | struct delayed_work gl_work; |
232 | struct work_struct gl_delete; |
233 | }; |
234 | |
235 | #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */ |
236 | |
237 | struct gfs2_alloc { |
238 | /* Quota stuff */ |
239 | |
240 | struct gfs2_quota_data *al_qd[2*MAXQUOTAS]; |
241 | struct gfs2_holder al_qd_ghs[2*MAXQUOTAS]; |
242 | unsigned int al_qd_num; |
243 | |
244 | u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */ |
245 | u32 al_alloced; /* Filled in by gfs2_alloc_*() */ |
246 | |
247 | /* Filled in by gfs2_inplace_reserve() */ |
248 | |
249 | unsigned int al_line; |
250 | char *al_file; |
251 | struct gfs2_holder al_ri_gh; |
252 | struct gfs2_holder al_rgd_gh; |
253 | struct gfs2_rgrpd *al_rgd; |
254 | |
255 | }; |
256 | |
257 | enum { |
258 | GIF_INVALID = 0, |
259 | GIF_QD_LOCKED = 1, |
260 | GIF_SW_PAGED = 3, |
261 | GIF_USER = 4, /* user inode, not metadata addr space */ |
262 | }; |
263 | |
264 | |
265 | struct gfs2_inode { |
266 | struct inode i_inode; |
267 | u64 i_no_addr; |
268 | u64 i_no_formal_ino; |
269 | u64 i_generation; |
270 | u64 i_eattr; |
271 | loff_t i_disksize; |
272 | unsigned long i_flags; /* GIF_... */ |
273 | struct gfs2_glock *i_gl; /* Move into i_gh? */ |
274 | struct gfs2_holder i_iopen_gh; |
275 | struct gfs2_holder i_gh; /* for prepare/commit_write only */ |
276 | struct gfs2_alloc *i_alloc; |
277 | u64 i_goal; /* goal block for allocations */ |
278 | struct rw_semaphore i_rw_mutex; |
279 | struct list_head i_trunc_list; |
280 | u32 i_entries; |
281 | u32 i_diskflags; |
282 | u8 i_height; |
283 | u8 i_depth; |
284 | }; |
285 | |
286 | /* |
287 | * Since i_inode is the first element of struct gfs2_inode, |
288 | * this is effectively a cast. |
289 | */ |
290 | static inline struct gfs2_inode *GFS2_I(struct inode *inode) |
291 | { |
292 | return container_of(inode, struct gfs2_inode, i_inode); |
293 | } |
294 | |
295 | static inline struct gfs2_sbd *GFS2_SB(const struct inode *inode) |
296 | { |
297 | return inode->i_sb->s_fs_info; |
298 | } |
299 | |
300 | struct gfs2_file { |
301 | struct mutex f_fl_mutex; |
302 | struct gfs2_holder f_fl_gh; |
303 | }; |
304 | |
305 | struct gfs2_revoke_replay { |
306 | struct list_head rr_list; |
307 | u64 rr_blkno; |
308 | unsigned int rr_where; |
309 | }; |
310 | |
311 | enum { |
312 | QDF_USER = 0, |
313 | QDF_CHANGE = 1, |
314 | QDF_LOCKED = 2, |
315 | }; |
316 | |
317 | struct gfs2_quota_data { |
318 | struct list_head qd_list; |
319 | struct list_head qd_reclaim; |
320 | |
321 | atomic_t qd_count; |
322 | |
323 | u32 qd_id; |
324 | unsigned long qd_flags; /* QDF_... */ |
325 | |
326 | s64 qd_change; |
327 | s64 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 | u64 qd_sync_gen; |
340 | unsigned long qd_last_warn; |
341 | }; |
342 | |
343 | struct gfs2_trans { |
344 | unsigned long tr_ip; |
345 | |
346 | unsigned int tr_blocks; |
347 | unsigned int tr_revokes; |
348 | unsigned int tr_reserved; |
349 | |
350 | struct gfs2_holder tr_t_gh; |
351 | |
352 | int tr_touched; |
353 | |
354 | unsigned int tr_num_buf; |
355 | unsigned int tr_num_buf_new; |
356 | unsigned int tr_num_databuf_new; |
357 | unsigned int tr_num_buf_rm; |
358 | unsigned int tr_num_databuf_rm; |
359 | struct list_head tr_list_buf; |
360 | |
361 | unsigned int tr_num_revoke; |
362 | unsigned int tr_num_revoke_rm; |
363 | }; |
364 | |
365 | struct gfs2_ail { |
366 | struct list_head ai_list; |
367 | |
368 | unsigned int ai_first; |
369 | struct list_head ai_ail1_list; |
370 | struct list_head ai_ail2_list; |
371 | |
372 | u64 ai_sync_gen; |
373 | }; |
374 | |
375 | struct gfs2_journal_extent { |
376 | struct list_head extent_list; |
377 | |
378 | unsigned int lblock; /* First logical block */ |
379 | u64 dblock; /* First disk block */ |
380 | u64 blocks; |
381 | }; |
382 | |
383 | struct gfs2_jdesc { |
384 | struct list_head jd_list; |
385 | struct list_head extent_list; |
386 | struct slow_work jd_work; |
387 | struct inode *jd_inode; |
388 | unsigned long jd_flags; |
389 | #define JDF_RECOVERY 1 |
390 | unsigned int jd_jid; |
391 | unsigned int jd_blocks; |
392 | }; |
393 | |
394 | struct gfs2_statfs_change_host { |
395 | s64 sc_total; |
396 | s64 sc_free; |
397 | s64 sc_dinodes; |
398 | }; |
399 | |
400 | #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF |
401 | #define GFS2_QUOTA_OFF 0 |
402 | #define GFS2_QUOTA_ACCOUNT 1 |
403 | #define GFS2_QUOTA_ON 2 |
404 | |
405 | #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED |
406 | #define GFS2_DATA_WRITEBACK 1 |
407 | #define GFS2_DATA_ORDERED 2 |
408 | |
409 | struct gfs2_args { |
410 | char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */ |
411 | char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */ |
412 | char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */ |
413 | unsigned int ar_spectator:1; /* Don't get a journal */ |
414 | unsigned int ar_ignore_local_fs:1; /* Ignore optimisations */ |
415 | unsigned int ar_localflocks:1; /* Let the VFS do flock|fcntl */ |
416 | unsigned int ar_localcaching:1; /* Local caching */ |
417 | unsigned int ar_debug:1; /* Oops on errors */ |
418 | unsigned int ar_upgrade:1; /* Upgrade ondisk format */ |
419 | unsigned int ar_posix_acl:1; /* Enable posix acls */ |
420 | unsigned int ar_quota:2; /* off/account/on */ |
421 | unsigned int ar_suiddir:1; /* suiddir support */ |
422 | unsigned int ar_data:2; /* ordered/writeback */ |
423 | unsigned int ar_meta:1; /* mount metafs */ |
424 | unsigned int ar_discard:1; /* discard requests */ |
425 | int ar_commit; /* Commit interval */ |
426 | }; |
427 | |
428 | struct gfs2_tune { |
429 | spinlock_t gt_spin; |
430 | |
431 | unsigned int gt_incore_log_blocks; |
432 | unsigned int gt_log_flush_secs; |
433 | |
434 | unsigned int gt_logd_secs; |
435 | |
436 | unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */ |
437 | unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */ |
438 | unsigned int gt_quota_scale_num; /* Numerator */ |
439 | unsigned int gt_quota_scale_den; /* Denominator */ |
440 | unsigned int gt_quota_quantum; /* Secs between syncs to quota file */ |
441 | unsigned int gt_new_files_jdata; |
442 | unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */ |
443 | unsigned int gt_stall_secs; /* Detects trouble! */ |
444 | unsigned int gt_complain_secs; |
445 | unsigned int gt_statfs_quantum; |
446 | unsigned int gt_statfs_slow; |
447 | }; |
448 | |
449 | enum { |
450 | SDF_JOURNAL_CHECKED = 0, |
451 | SDF_JOURNAL_LIVE = 1, |
452 | SDF_SHUTDOWN = 2, |
453 | SDF_NOBARRIERS = 3, |
454 | SDF_NORECOVERY = 4, |
455 | }; |
456 | |
457 | #define GFS2_FSNAME_LEN 256 |
458 | |
459 | struct gfs2_inum_host { |
460 | u64 no_formal_ino; |
461 | u64 no_addr; |
462 | }; |
463 | |
464 | struct gfs2_sb_host { |
465 | u32 sb_magic; |
466 | u32 sb_type; |
467 | u32 sb_format; |
468 | |
469 | u32 sb_fs_format; |
470 | u32 sb_multihost_format; |
471 | u32 sb_bsize; |
472 | u32 sb_bsize_shift; |
473 | |
474 | struct gfs2_inum_host sb_master_dir; |
475 | struct gfs2_inum_host sb_root_dir; |
476 | |
477 | char sb_lockproto[GFS2_LOCKNAME_LEN]; |
478 | char sb_locktable[GFS2_LOCKNAME_LEN]; |
479 | u8 sb_uuid[16]; |
480 | }; |
481 | |
482 | /* |
483 | * lm_mount() return values |
484 | * |
485 | * ls_jid - the journal ID this node should use |
486 | * ls_first - this node is the first to mount the file system |
487 | * ls_lockspace - lock module's context for this file system |
488 | * ls_ops - lock module's functions |
489 | */ |
490 | |
491 | struct lm_lockstruct { |
492 | u32 ls_id; |
493 | unsigned int ls_jid; |
494 | unsigned int ls_first; |
495 | unsigned int ls_first_done; |
496 | unsigned int ls_nodir; |
497 | const struct lm_lockops *ls_ops; |
498 | unsigned long ls_flags; |
499 | dlm_lockspace_t *ls_dlm; |
500 | |
501 | int ls_recover_jid_done; |
502 | int ls_recover_jid_status; |
503 | }; |
504 | |
505 | struct gfs2_sbd { |
506 | struct super_block *sd_vfs; |
507 | struct kobject sd_kobj; |
508 | unsigned long sd_flags; /* SDF_... */ |
509 | struct gfs2_sb_host sd_sb; |
510 | |
511 | /* Constants computed on mount */ |
512 | |
513 | u32 sd_fsb2bb; |
514 | u32 sd_fsb2bb_shift; |
515 | u32 sd_diptrs; /* Number of pointers in a dinode */ |
516 | u32 sd_inptrs; /* Number of pointers in a indirect block */ |
517 | u32 sd_jbsize; /* Size of a journaled data block */ |
518 | u32 sd_hash_bsize; /* sizeof(exhash block) */ |
519 | u32 sd_hash_bsize_shift; |
520 | u32 sd_hash_ptrs; /* Number of pointers in a hash block */ |
521 | u32 sd_qc_per_block; |
522 | u32 sd_max_dirres; /* Max blocks needed to add a directory entry */ |
523 | u32 sd_max_height; /* Max height of a file's metadata tree */ |
524 | u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1]; |
525 | u32 sd_max_jheight; /* Max height of journaled file's meta tree */ |
526 | u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1]; |
527 | |
528 | struct gfs2_args sd_args; /* Mount arguments */ |
529 | struct gfs2_tune sd_tune; /* Filesystem tuning structure */ |
530 | |
531 | /* Lock Stuff */ |
532 | |
533 | struct lm_lockstruct sd_lockstruct; |
534 | struct gfs2_holder sd_live_gh; |
535 | struct gfs2_glock *sd_rename_gl; |
536 | struct gfs2_glock *sd_trans_gl; |
537 | |
538 | /* Inode Stuff */ |
539 | |
540 | struct dentry *sd_master_dir; |
541 | struct dentry *sd_root_dir; |
542 | |
543 | struct inode *sd_jindex; |
544 | struct inode *sd_inum_inode; |
545 | struct inode *sd_statfs_inode; |
546 | struct inode *sd_ir_inode; |
547 | struct inode *sd_sc_inode; |
548 | struct inode *sd_qc_inode; |
549 | struct inode *sd_rindex; |
550 | struct inode *sd_quota_inode; |
551 | |
552 | /* Inum stuff */ |
553 | |
554 | struct mutex sd_inum_mutex; |
555 | |
556 | /* StatFS stuff */ |
557 | |
558 | spinlock_t sd_statfs_spin; |
559 | struct gfs2_statfs_change_host sd_statfs_master; |
560 | struct gfs2_statfs_change_host sd_statfs_local; |
561 | |
562 | /* Resource group stuff */ |
563 | |
564 | int sd_rindex_uptodate; |
565 | spinlock_t sd_rindex_spin; |
566 | struct mutex sd_rindex_mutex; |
567 | struct list_head sd_rindex_list; |
568 | struct list_head sd_rindex_mru_list; |
569 | struct gfs2_rgrpd *sd_rindex_forward; |
570 | unsigned int sd_rgrps; |
571 | |
572 | /* Journal index stuff */ |
573 | |
574 | struct list_head sd_jindex_list; |
575 | spinlock_t sd_jindex_spin; |
576 | struct mutex sd_jindex_mutex; |
577 | unsigned int sd_journals; |
578 | |
579 | struct gfs2_jdesc *sd_jdesc; |
580 | struct gfs2_holder sd_journal_gh; |
581 | struct gfs2_holder sd_jinode_gh; |
582 | |
583 | struct gfs2_holder sd_ir_gh; |
584 | struct gfs2_holder sd_sc_gh; |
585 | struct gfs2_holder sd_qc_gh; |
586 | |
587 | /* Daemon stuff */ |
588 | |
589 | struct task_struct *sd_logd_process; |
590 | struct task_struct *sd_quotad_process; |
591 | |
592 | /* Quota stuff */ |
593 | |
594 | struct list_head sd_quota_list; |
595 | atomic_t sd_quota_count; |
596 | struct mutex sd_quota_mutex; |
597 | wait_queue_head_t sd_quota_wait; |
598 | struct list_head sd_trunc_list; |
599 | spinlock_t sd_trunc_lock; |
600 | |
601 | unsigned int sd_quota_slots; |
602 | unsigned int sd_quota_chunks; |
603 | unsigned char **sd_quota_bitmap; |
604 | |
605 | u64 sd_quota_sync_gen; |
606 | |
607 | /* Log stuff */ |
608 | |
609 | spinlock_t sd_log_lock; |
610 | |
611 | unsigned int sd_log_blks_reserved; |
612 | unsigned int sd_log_commited_buf; |
613 | unsigned int sd_log_commited_databuf; |
614 | unsigned int sd_log_commited_revoke; |
615 | |
616 | unsigned int sd_log_num_buf; |
617 | unsigned int sd_log_num_revoke; |
618 | unsigned int sd_log_num_rg; |
619 | unsigned int sd_log_num_databuf; |
620 | |
621 | struct list_head sd_log_le_buf; |
622 | struct list_head sd_log_le_revoke; |
623 | struct list_head sd_log_le_rg; |
624 | struct list_head sd_log_le_databuf; |
625 | struct list_head sd_log_le_ordered; |
626 | |
627 | atomic_t sd_log_blks_free; |
628 | struct mutex sd_log_reserve_mutex; |
629 | |
630 | u64 sd_log_sequence; |
631 | unsigned int sd_log_head; |
632 | unsigned int sd_log_tail; |
633 | int sd_log_idle; |
634 | |
635 | unsigned long sd_log_flush_time; |
636 | struct rw_semaphore sd_log_flush_lock; |
637 | atomic_t sd_log_in_flight; |
638 | wait_queue_head_t sd_log_flush_wait; |
639 | |
640 | unsigned int sd_log_flush_head; |
641 | u64 sd_log_flush_wrapped; |
642 | |
643 | struct list_head sd_ail1_list; |
644 | struct list_head sd_ail2_list; |
645 | u64 sd_ail_sync_gen; |
646 | |
647 | /* Replay stuff */ |
648 | |
649 | struct list_head sd_revoke_list; |
650 | unsigned int sd_replay_tail; |
651 | |
652 | unsigned int sd_found_blocks; |
653 | unsigned int sd_found_revokes; |
654 | unsigned int sd_replayed_blocks; |
655 | |
656 | /* For quiescing the filesystem */ |
657 | |
658 | struct gfs2_holder sd_freeze_gh; |
659 | struct mutex sd_freeze_lock; |
660 | unsigned int sd_freeze_count; |
661 | |
662 | char sd_fsname[GFS2_FSNAME_LEN]; |
663 | char sd_table_name[GFS2_FSNAME_LEN]; |
664 | char sd_proto_name[GFS2_FSNAME_LEN]; |
665 | |
666 | /* Debugging crud */ |
667 | |
668 | unsigned long sd_last_warning; |
669 | struct dentry *debugfs_dir; /* debugfs directory */ |
670 | struct dentry *debugfs_dentry_glocks; /* for debugfs */ |
671 | }; |
672 | |
673 | #endif /* __INCORE_DOT_H__ */ |
674 | |
675 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
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jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9