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TOMOYO Linux Cross Reference
Linux/fs/gfs2/incore.h

Version: ~ [ linux-5.4-rc7 ] ~ [ linux-5.3.10 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.83 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.153 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.200 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.200 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.76 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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 #define GFS2_ERRORS_DEFAULT     GFS2_ERRORS_WITHDRAW
410 #define GFS2_ERRORS_WITHDRAW    0
411 #define GFS2_ERRORS_CONTINUE    1 /* place holder for future feature */
412 #define GFS2_ERRORS_RO          2 /* place holder for future feature */
413 #define GFS2_ERRORS_PANIC       3
414 
415 struct gfs2_args {
416         char ar_lockproto[GFS2_LOCKNAME_LEN];   /* Name of the Lock Protocol */
417         char ar_locktable[GFS2_LOCKNAME_LEN];   /* Name of the Lock Table */
418         char ar_hostdata[GFS2_LOCKNAME_LEN];    /* Host specific data */
419         unsigned int ar_spectator:1;            /* Don't get a journal */
420         unsigned int ar_ignore_local_fs:1;      /* Ignore optimisations */
421         unsigned int ar_localflocks:1;          /* Let the VFS do flock|fcntl */
422         unsigned int ar_localcaching:1;         /* Local caching */
423         unsigned int ar_debug:1;                /* Oops on errors */
424         unsigned int ar_upgrade:1;              /* Upgrade ondisk format */
425         unsigned int ar_posix_acl:1;            /* Enable posix acls */
426         unsigned int ar_quota:2;                /* off/account/on */
427         unsigned int ar_suiddir:1;              /* suiddir support */
428         unsigned int ar_data:2;                 /* ordered/writeback */
429         unsigned int ar_meta:1;                 /* mount metafs */
430         unsigned int ar_discard:1;              /* discard requests */
431         unsigned int ar_errors:2;               /* errors=withdraw | panic */
432         int ar_commit;                          /* Commit interval */
433 };
434 
435 struct 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; /* Max quotavals to sync at once */
444         unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */
445         unsigned int gt_quota_scale_num; /* Numerator */
446         unsigned int gt_quota_scale_den; /* Denominator */
447         unsigned int gt_quota_quantum; /* Secs between syncs to quota file */
448         unsigned int gt_new_files_jdata;
449         unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */
450         unsigned int gt_stall_secs; /* Detects trouble! */
451         unsigned int gt_complain_secs;
452         unsigned int gt_statfs_quantum;
453         unsigned int gt_statfs_slow;
454 };
455 
456 enum {
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 
466 struct gfs2_inum_host {
467         u64 no_formal_ino;
468         u64 no_addr;
469 };
470 
471 struct 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 
489 /*
490  * lm_mount() return values
491  *
492  * ls_jid - the journal ID this node should use
493  * ls_first - this node is the first to mount the file system
494  * ls_lockspace - lock module's context for this file system
495  * ls_ops - lock module's functions
496  */
497 
498 struct 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 
511 struct gfs2_sbd {
512         struct super_block *sd_vfs;
513         struct kobject sd_kobj;
514         unsigned long sd_flags; /* SDF_... */
515         struct gfs2_sb_host sd_sb;
516 
517         /* Constants computed on mount */
518 
519         u32 sd_fsb2bb;
520         u32 sd_fsb2bb_shift;
521         u32 sd_diptrs;  /* Number of pointers in a dinode */
522         u32 sd_inptrs;  /* Number of pointers in a indirect block */
523         u32 sd_jbsize;  /* Size of a journaled data block */
524         u32 sd_hash_bsize;      /* sizeof(exhash block) */
525         u32 sd_hash_bsize_shift;
526         u32 sd_hash_ptrs;       /* Number of pointers in a hash block */
527         u32 sd_qc_per_block;
528         u32 sd_max_dirres;      /* Max blocks needed to add a directory entry */
529         u32 sd_max_height;      /* Max height of a file's metadata tree */
530         u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1];
531         u32 sd_max_jheight; /* Max height of journaled file's meta tree */
532         u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1];
533 
534         struct gfs2_args sd_args;       /* Mount arguments */
535         struct gfs2_tune sd_tune;       /* Filesystem tuning structure */
536 
537         /* Lock Stuff */
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         /* Inode Stuff */
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         /* 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_sc_gh;
584         struct gfs2_holder sd_qc_gh;
585 
586         /* Daemon stuff */
587 
588         struct task_struct *sd_logd_process;
589         struct task_struct *sd_quotad_process;
590 
591         /* Quota stuff */
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         /* Log stuff */
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         /* Replay stuff */
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         /* For quiescing the filesystem */
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         /* Debugging crud */
666 
667         unsigned long sd_last_warning;
668         struct dentry *debugfs_dir;    /* debugfs directory */
669         struct dentry *debugfs_dentry_glocks; /* for debugfs */
670 };
671 
672 #endif /* __INCORE_DOT_H__ */
673 
674 

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