2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
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.
10 #ifndef __INCORE_DOT_H__
11 #define __INCORE_DOT_H__
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
23 struct gfs2_log_operations;
24 struct gfs2_log_element;
29 struct gfs2_glock_operations;
36 struct gfs2_revoke_replay;
38 struct gfs2_quota_data;
45 struct gfs2_gl_hash_bucket;
48 typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret);
51 * Structure of operations that are associated with each
52 * type of element in the log.
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,
65 void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass);
69 struct gfs2_log_element {
70 struct list_head le_list;
71 struct gfs2_log_operations *le_ops;
75 struct buffer_head *bi_bh;
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;
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;
100 enum gfs2_state_bits {
101 BH_Pinned = BH_PrivateStart,
104 BUFFER_FNS(Pinned, pinned)
105 TAS_BUFFER_FNS(Pinned, pinned)
107 struct gfs2_bufdata {
108 struct buffer_head *bd_bh;
109 struct gfs2_glock *bd_gl;
111 struct list_head bd_list_tr;
112 struct gfs2_log_element bd_le;
114 struct gfs2_ail *bd_ail;
115 struct list_head bd_ail_st_list;
116 struct list_head bd_ail_gl_list;
119 struct gfs2_databuf {
120 struct gfs2_log_element db_le;
121 struct buffer_head *db_bh;
124 struct gfs2_glock_operations {
125 void (*go_xmote_th) (struct gfs2_glock * gl, unsigned int state,
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);
157 struct list_head gh_list;
159 struct gfs2_glock *gh_gl;
160 struct task_struct *gh_owner;
161 unsigned int gh_state;
165 unsigned long gh_iflags;
166 struct completion gh_wait;
176 GLF_SKIP_WAITERS2 = 6,
181 struct list_head gl_list;
182 unsigned long gl_flags; /* GLF_... */
183 struct lm_lockname gl_name;
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 */
194 struct gfs2_glock_operations *gl_ops;
196 struct gfs2_holder *gl_req_gh;
197 gfs2_glop_bh_t gl_req_bh;
201 atomic_t gl_lvb_count;
204 unsigned long gl_stamp;
207 struct gfs2_gl_hash_bucket *gl_bucket;
208 struct list_head gl_reclaim;
210 struct gfs2_sbd *gl_sbd;
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;
221 unsigned int al_qd_num;
222 struct gfs2_quota_data *al_qd[4];
223 struct gfs2_holder al_qd_ghs[4];
225 /* Filled in by the caller to gfs2_inplace_reserve() */
227 uint32_t al_requested;
229 /* Filled in by gfs2_inplace_reserve() */
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;
237 /* Filled in by gfs2_alloc_*() */
250 struct gfs2_inum i_num;
253 unsigned long i_flags; /* GIF_... */
256 struct gfs2_dinode i_di;
258 struct gfs2_glock *i_gl;
259 struct gfs2_sbd *i_sbd;
260 struct inode *i_vnode;
262 struct gfs2_holder i_iopen_gh;
264 struct gfs2_alloc i_alloc;
265 uint64_t i_last_rg_alloc;
268 struct rw_semaphore i_rw_mutex;
270 unsigned int i_greedy;
271 unsigned long i_last_pfault;
273 struct buffer_head *i_cache[GFS2_MAX_META_HEIGHT];
277 GFF_DID_DIRECT_ALLOC = 0,
281 unsigned long f_flags; /* GFF_... */
283 struct semaphore f_fl_mutex;
284 struct gfs2_holder f_fl_gh;
286 struct gfs2_inode *f_inode;
287 struct file *f_vfile;
291 struct gfs2_log_element rv_le;
295 struct gfs2_revoke_replay {
296 struct list_head rr_list;
298 unsigned int rr_where;
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;
319 struct gfs2_quota_data {
320 struct list_head qd_list;
321 unsigned int qd_count;
324 unsigned long qd_flags; /* QDF_... */
327 int64_t qd_change_sync;
329 unsigned int qd_slot;
330 unsigned int qd_slot_count;
332 struct buffer_head *qd_bh;
333 struct gfs2_quota_change *qd_bh_qc;
334 unsigned int qd_bh_count;
336 struct gfs2_glock *qd_gl;
337 struct gfs2_quota_lvb qd_qb;
339 uint64_t qd_sync_gen;
340 unsigned long qd_last_warn;
341 unsigned long qd_last_touched;
344 struct gfs2_log_buf {
345 struct list_head lb_list;
346 struct buffer_head *lb_bh;
347 struct buffer_head *lb_real;
352 unsigned int tr_line;
354 unsigned int tr_blocks;
355 unsigned int tr_revokes;
356 unsigned int tr_reserved;
358 struct gfs2_holder *tr_t_gh;
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;
367 unsigned int tr_num_revoke;
368 unsigned int tr_num_revoke_rm;
372 struct list_head ai_list;
374 unsigned int ai_first;
375 struct list_head ai_ail1_list;
376 struct list_head ai_ail2_list;
378 uint64_t ai_sync_gen;
382 struct list_head jd_list;
384 struct gfs2_inode *jd_inode;
388 unsigned int jd_blocks;
391 #define GFS2_GLOCKD_DEFAULT 1
392 #define GFS2_GLOCKD_MAX 16
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
399 #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED
400 #define GFS2_DATA_WRITEBACK 1
401 #define GFS2_DATA_ORDERED 2
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 */
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 */
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;
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;
461 struct gfs2_gl_hash_bucket {
463 struct list_head hb_list;
467 SDF_JOURNAL_CHECKED = 0,
468 SDF_JOURNAL_LIVE = 1,
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
479 struct super_block *sd_vfs;
480 struct kobject sd_kobj;
481 unsigned long sd_flags; /* SDF_... */
482 struct gfs2_sb sd_sb;
484 /* Constants computed on mount */
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];
502 struct gfs2_args sd_args; /* Mount arguments */
503 struct gfs2_tune sd_tune; /* Filesystem tuning structure */
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;
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;
534 struct semaphore sd_inum_mutex;
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;
544 /* Resource group stuff */
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;
555 /* Journal index stuff */
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;
563 struct gfs2_jdesc *sd_jdesc;
564 struct gfs2_holder sd_journal_gh;
565 struct gfs2_holder sd_jinode_gh;
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;
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;
582 /* Unlinked inode stuff */
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;
589 unsigned int sd_unlinked_slots;
590 unsigned int sd_unlinked_chunks;
591 unsigned char **sd_unlinked_bitmap;
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;
600 unsigned int sd_quota_slots;
601 unsigned int sd_quota_chunks;
602 unsigned char **sd_quota_bitmap;
604 uint64_t sd_quota_sync_gen;
605 unsigned long sd_quota_sync_time;
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;
615 unsigned int sd_log_blks_reserved;
616 unsigned int sd_log_commited_buf;
617 unsigned int sd_log_commited_revoke;
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;
630 unsigned int sd_log_blks_free;
631 struct list_head sd_log_blks_list;
632 wait_queue_head_t sd_log_blks_wait;
634 uint64_t sd_log_sequence;
635 unsigned int sd_log_head;
636 unsigned int sd_log_tail;
637 uint64_t sd_log_wraps;
640 unsigned long sd_log_flush_time;
641 struct semaphore sd_log_flush_lock;
642 struct list_head sd_log_flush_list;
644 unsigned int sd_log_flush_head;
645 uint64_t sd_log_flush_wrapped;
647 struct list_head sd_ail1_list;
648 struct list_head sd_ail2_list;
649 uint64_t sd_ail_sync_gen;
653 struct list_head sd_revoke_list;
654 unsigned int sd_replay_tail;
656 unsigned int sd_found_blocks;
657 unsigned int sd_found_revokes;
658 unsigned int sd_replayed_blocks;
660 /* For quiescing the filesystem */
662 struct gfs2_holder sd_freeze_gh;
663 struct semaphore sd_freeze_lock;
664 unsigned int sd_freeze_count;
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;
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;
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;
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;
693 char sd_fsname[GFS2_FSNAME_LEN];
694 char sd_table_name[GFS2_FSNAME_LEN];
695 char sd_proto_name[GFS2_FSNAME_LEN];
699 unsigned long sd_last_warning;
702 #endif /* __INCORE_DOT_H__ */