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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
23struct gfs2_log_operations;
24struct gfs2_log_element;
25struct gfs2_holder;
26struct gfs2_glock;
27struct gfs2_quota_data;
28struct gfs2_trans;
29struct gfs2_ail;
30struct gfs2_jdesc;
31struct gfs2_sbd;
32struct lm_lockops;
33
34typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret);
35
36struct gfs2_log_header_host {
37 u64 lh_sequence;
38 u32 lh_flags;
39 u32 lh_tail;
40 u32 lh_blkno;
41 u32 lh_hash;
42};
43
44
45
46
47
48
49struct 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
62struct 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
69struct 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
78struct gfs2_rgrpd {
79 struct list_head rd_list;
80 struct list_head rd_list_mru;
81 struct gfs2_glock *rd_gl;
82 u64 rd_addr;
83 u64 rd_data0;
84 u32 rd_length;
85 u32 rd_data;
86 u32 rd_bitbytes;
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
99#define GFS2_RDF_UPTODATE 0x20000000
100#define GFS2_RDF_ERROR 0x40000000
101#define GFS2_RDF_MASK 0xf0000000
102};
103
104enum gfs2_state_bits {
105 BH_Pinned = BH_PrivateStart,
106 BH_Escaped = BH_PrivateStart + 1,
107};
108
109BUFFER_FNS(Pinned, pinned)
110TAS_BUFFER_FNS(Pinned, pinned)
111BUFFER_FNS(Escaped, escaped)
112TAS_BUFFER_FNS(Escaped, escaped)
113
114struct 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
134
135
136
137#define GDLM_STRNAME_BYTES 25
138#define GDLM_LVB_SIZE 32
139
140enum {
141 DFL_BLOCK_LOCKS = 0,
142};
143
144struct 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
154struct 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
167enum {
168
169 HIF_HOLDER = 6,
170 HIF_FIRST = 7,
171 HIF_WAIT = 10,
172};
173
174struct 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;
184 unsigned long gh_ip;
185};
186
187enum {
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
200struct gfs2_glock {
201 struct hlist_node gl_list;
202 unsigned long gl_flags;
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;
214 unsigned long gl_demote_time;
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
236
237struct gfs2_alloc {
238
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;
245 u32 al_alloced;
246
247
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
257enum {
258 GIF_INVALID = 0,
259 GIF_QD_LOCKED = 1,
260 GIF_SW_PAGED = 3,
261 GIF_USER = 4,
262};
263
264
265struct 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;
273 struct gfs2_glock *i_gl;
274 struct gfs2_holder i_iopen_gh;
275 struct gfs2_holder i_gh;
276 struct gfs2_alloc *i_alloc;
277 u64 i_goal;
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
288
289
290static inline struct gfs2_inode *GFS2_I(struct inode *inode)
291{
292 return container_of(inode, struct gfs2_inode, i_inode);
293}
294
295static inline struct gfs2_sbd *GFS2_SB(const struct inode *inode)
296{
297 return inode->i_sb->s_fs_info;
298}
299
300struct gfs2_file {
301 struct mutex f_fl_mutex;
302 struct gfs2_holder f_fl_gh;
303};
304
305struct gfs2_revoke_replay {
306 struct list_head rr_list;
307 u64 rr_blkno;
308 unsigned int rr_where;
309};
310
311enum {
312 QDF_USER = 0,
313 QDF_CHANGE = 1,
314 QDF_LOCKED = 2,
315};
316
317struct 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;
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
343struct 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
365struct 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
375struct gfs2_journal_extent {
376 struct list_head extent_list;
377
378 unsigned int lblock;
379 u64 dblock;
380 u64 blocks;
381};
382
383struct 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
394struct 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#define GFS2_ERRORS_DEFAULT GFS2_ERRORS_WITHDRAW
410#define GFS2_ERRORS_WITHDRAW 0
411#define GFS2_ERRORS_CONTINUE 1
412#define GFS2_ERRORS_RO 2
413#define GFS2_ERRORS_PANIC 3
414
415struct gfs2_args {
416 char ar_lockproto[GFS2_LOCKNAME_LEN];
417 char ar_locktable[GFS2_LOCKNAME_LEN];
418 char ar_hostdata[GFS2_LOCKNAME_LEN];
419 unsigned int ar_spectator:1;
420 unsigned int ar_ignore_local_fs:1;
421 unsigned int ar_localflocks:1;
422 unsigned int ar_localcaching:1;
423 unsigned int ar_debug:1;
424 unsigned int ar_upgrade:1;
425 unsigned int ar_posix_acl:1;
426 unsigned int ar_quota:2;
427 unsigned int ar_suiddir:1;
428 unsigned int ar_data:2;
429 unsigned int ar_meta:1;
430 unsigned int ar_discard:1;
431 unsigned int ar_errors:2;
432 int ar_commit;
433};
434
435struct gfs2_tune {
436 spinlock_t gt_spin;
437
438 unsigned int gt_incore_log_blocks;
439 unsigned int gt_log_flush_secs;
440
441 unsigned int gt_logd_secs;
442
443 unsigned int gt_quota_simul_sync;
444 unsigned int gt_quota_warn_period;
445 unsigned int gt_quota_scale_num;
446 unsigned int gt_quota_scale_den;
447 unsigned int gt_quota_quantum;
448 unsigned int gt_new_files_jdata;
449 unsigned int gt_max_readahead;
450 unsigned int gt_stall_secs;
451 unsigned int gt_complain_secs;
452 unsigned int gt_statfs_quantum;
453 unsigned int gt_statfs_slow;
454};
455
456enum {
457 SDF_JOURNAL_CHECKED = 0,
458 SDF_JOURNAL_LIVE = 1,
459 SDF_SHUTDOWN = 2,
460 SDF_NOBARRIERS = 3,
461 SDF_NORECOVERY = 4,
462};
463
464#define GFS2_FSNAME_LEN 256
465
466struct gfs2_inum_host {
467 u64 no_formal_ino;
468 u64 no_addr;
469};
470
471struct gfs2_sb_host {
472 u32 sb_magic;
473 u32 sb_type;
474 u32 sb_format;
475
476 u32 sb_fs_format;
477 u32 sb_multihost_format;
478 u32 sb_bsize;
479 u32 sb_bsize_shift;
480
481 struct gfs2_inum_host sb_master_dir;
482 struct gfs2_inum_host sb_root_dir;
483
484 char sb_lockproto[GFS2_LOCKNAME_LEN];
485 char sb_locktable[GFS2_LOCKNAME_LEN];
486 u8 sb_uuid[16];
487};
488
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494
495
496
497
498struct lm_lockstruct {
499 unsigned int ls_jid;
500 unsigned int ls_first;
501 unsigned int ls_first_done;
502 unsigned int ls_nodir;
503 const struct lm_lockops *ls_ops;
504 unsigned long ls_flags;
505 dlm_lockspace_t *ls_dlm;
506
507 int ls_recover_jid_done;
508 int ls_recover_jid_status;
509};
510
511struct gfs2_sbd {
512 struct super_block *sd_vfs;
513 struct kobject sd_kobj;
514 unsigned long sd_flags;
515 struct gfs2_sb_host sd_sb;
516
517
518
519 u32 sd_fsb2bb;
520 u32 sd_fsb2bb_shift;
521 u32 sd_diptrs;
522 u32 sd_inptrs;
523 u32 sd_jbsize;
524 u32 sd_hash_bsize;
525 u32 sd_hash_bsize_shift;
526 u32 sd_hash_ptrs;
527 u32 sd_qc_per_block;
528 u32 sd_max_dirres;
529 u32 sd_max_height;
530 u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1];
531 u32 sd_max_jheight;
532 u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1];
533
534 struct gfs2_args sd_args;
535 struct gfs2_tune sd_tune;
536
537
538
539 struct lm_lockstruct sd_lockstruct;
540 struct gfs2_holder sd_live_gh;
541 struct gfs2_glock *sd_rename_gl;
542 struct gfs2_glock *sd_trans_gl;
543
544
545
546 struct dentry *sd_master_dir;
547 struct dentry *sd_root_dir;
548
549 struct inode *sd_jindex;
550 struct inode *sd_statfs_inode;
551 struct inode *sd_sc_inode;
552 struct inode *sd_qc_inode;
553 struct inode *sd_rindex;
554 struct inode *sd_quota_inode;
555
556
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
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
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_sc_gh;
584 struct gfs2_holder sd_qc_gh;
585
586
587
588 struct task_struct *sd_logd_process;
589 struct task_struct *sd_quotad_process;
590
591
592
593 struct list_head sd_quota_list;
594 atomic_t sd_quota_count;
595 struct mutex sd_quota_mutex;
596 wait_queue_head_t sd_quota_wait;
597 struct list_head sd_trunc_list;
598 spinlock_t sd_trunc_lock;
599
600 unsigned int sd_quota_slots;
601 unsigned int sd_quota_chunks;
602 unsigned char **sd_quota_bitmap;
603
604 u64 sd_quota_sync_gen;
605
606
607
608 spinlock_t sd_log_lock;
609
610 unsigned int sd_log_blks_reserved;
611 unsigned int sd_log_commited_buf;
612 unsigned int sd_log_commited_databuf;
613 unsigned int sd_log_commited_revoke;
614
615 unsigned int sd_log_num_buf;
616 unsigned int sd_log_num_revoke;
617 unsigned int sd_log_num_rg;
618 unsigned int sd_log_num_databuf;
619
620 struct list_head sd_log_le_buf;
621 struct list_head sd_log_le_revoke;
622 struct list_head sd_log_le_rg;
623 struct list_head sd_log_le_databuf;
624 struct list_head sd_log_le_ordered;
625
626 atomic_t sd_log_blks_free;
627 struct mutex sd_log_reserve_mutex;
628
629 u64 sd_log_sequence;
630 unsigned int sd_log_head;
631 unsigned int sd_log_tail;
632 int sd_log_idle;
633
634 unsigned long sd_log_flush_time;
635 struct rw_semaphore sd_log_flush_lock;
636 atomic_t sd_log_in_flight;
637 wait_queue_head_t sd_log_flush_wait;
638
639 unsigned int sd_log_flush_head;
640 u64 sd_log_flush_wrapped;
641
642 struct list_head sd_ail1_list;
643 struct list_head sd_ail2_list;
644 u64 sd_ail_sync_gen;
645
646
647
648 struct list_head sd_revoke_list;
649 unsigned int sd_replay_tail;
650
651 unsigned int sd_found_blocks;
652 unsigned int sd_found_revokes;
653 unsigned int sd_replayed_blocks;
654
655
656
657 struct gfs2_holder sd_freeze_gh;
658 struct mutex sd_freeze_lock;
659 unsigned int sd_freeze_count;
660
661 char sd_fsname[GFS2_FSNAME_LEN];
662 char sd_table_name[GFS2_FSNAME_LEN];
663 char sd_proto_name[GFS2_FSNAME_LEN];
664
665
666
667 unsigned long sd_last_warning;
668 struct dentry *debugfs_dir;
669 struct dentry *debugfs_dentry_glocks;
670};
671
672#endif
673
674