fs/gfs2/incore.h

   1 /*
   2  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
   3  * Copyright (C) 2004-2006 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_glock_operations;
  29 struct gfs2_holder;
  30 struct gfs2_glock;
  31 struct gfs2_alloc;
  32 struct gfs2_inode;
  33 struct gfs2_file;
  34 struct gfs2_revoke;
  35 struct gfs2_revoke_replay;
  36 struct gfs2_quota_data;
  37 struct gfs2_log_buf;
  38 struct gfs2_trans;
  39 struct gfs2_ail;
  40 struct gfs2_jdesc;
  41 struct gfs2_args;
  42 struct gfs2_tune;
  43 struct gfs2_gl_hash_bucket;
  44 struct gfs2_sbd;
  45
  46 typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret);
  47
  48 /*
  49  * Structure of operations that are associated with each
  50  * type of element in the log.
  51  */
  52
  53 struct gfs2_log_operations {
  54         void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le);
  55         void (*lo_incore_commit) (struct gfs2_sbd *sdp, struct gfs2_trans *tr);
  56         void (*lo_before_commit) (struct gfs2_sbd *sdp);
  57         void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai);
  58         void (*lo_before_scan) (struct gfs2_jdesc *jd,
  59                                 struct gfs2_log_header *head, int pass);
  60         int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start,
  61                                  struct gfs2_log_descriptor *ld, __be64 *ptr,
  62                                  int pass);
  63         void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass);
  64         const char *lo_name;
  65 };
  66
  67 struct gfs2_log_element {
  68         struct list_head le_list;
  69         const struct gfs2_log_operations *le_ops;
  70 };
  71
  72 struct gfs2_bitmap {
  73         struct buffer_head *bi_bh;
  74         char *bi_clone;
  75         uint32_t bi_offset;
  76         uint32_t bi_start;
  77         uint32_t bi_len;
  78 };
  79
  80 struct gfs2_rgrpd {
  81         struct list_head rd_list;       /* Link with superblock */
  82         struct list_head rd_list_mru;
  83         struct list_head rd_recent;     /* Recently used rgrps */
  84         struct gfs2_glock *rd_gl;       /* Glock for this rgrp */
  85         struct gfs2_rindex rd_ri;
  86         struct gfs2_rgrp rd_rg;
  87         uint64_t rd_rg_vn;
  88         struct gfs2_bitmap *rd_bits;
  89         unsigned int rd_bh_count;
  90         struct mutex rd_mutex;
  91         uint32_t rd_free_clone;
  92         struct gfs2_log_element rd_le;
  93         uint32_t rd_last_alloc_data;
  94         uint32_t rd_last_alloc_meta;
  95         struct gfs2_sbd *rd_sbd;
  96 };
  97
  98 enum gfs2_state_bits {
  99         BH_Pinned = BH_PrivateStart,
 100         BH_Escaped = BH_PrivateStart + 1,
 101 };
 102
 103 BUFFER_FNS(Pinned, pinned)
 104 TAS_BUFFER_FNS(Pinned, pinned)
 105 BUFFER_FNS(Escaped, escaped)
 106 TAS_BUFFER_FNS(Escaped, escaped)
 107
 108 struct gfs2_bufdata {
 109         struct buffer_head *bd_bh;
 110         struct gfs2_glock *bd_gl;
 111
 112         struct list_head bd_list_tr;
 113         struct gfs2_log_element bd_le;
 114
 115         struct gfs2_ail *bd_ail;
 116         struct list_head bd_ail_st_list;
 117         struct list_head bd_ail_gl_list;
 118 };
 119
 120 struct gfs2_glock_operations {
 121         void (*go_xmote_th) (struct gfs2_glock * gl, unsigned int state,
 122                              int flags);
 123         void (*go_xmote_bh) (struct gfs2_glock * gl);
 124         void (*go_drop_th) (struct gfs2_glock * gl);
 125         void (*go_drop_bh) (struct gfs2_glock * gl);
 126         void (*go_sync) (struct gfs2_glock * gl, int flags);
 127         void (*go_inval) (struct gfs2_glock * gl, int flags);
 128         int (*go_demote_ok) (struct gfs2_glock * gl);
 129         int (*go_lock) (struct gfs2_holder * gh);
 130         void (*go_unlock) (struct gfs2_holder * gh);
 131         void (*go_callback) (struct gfs2_glock * gl, unsigned int state);
 132         void (*go_greedy) (struct gfs2_glock * gl);
 133         int go_type;
 134 };
 135
 136 enum {
 137         /* Actions */
 138         HIF_MUTEX               = 0,
 139         HIF_PROMOTE             = 1,
 140         HIF_DEMOTE              = 2,
 141         HIF_GREEDY              = 3,
 142
 143         /* States */
 144         HIF_ALLOCED             = 4,
 145         HIF_DEALLOC             = 5,
 146         HIF_HOLDER              = 6,
 147         HIF_FIRST               = 7,
 148         HIF_ABORTED             = 9,
 149 };
 150
 151 struct gfs2_holder {
 152         struct list_head gh_list;
 153
 154         struct gfs2_glock *gh_gl;
 155         struct task_struct *gh_owner;
 156         unsigned int gh_state;
 157         unsigned gh_flags;
 158
 159         int gh_error;
 160         unsigned long gh_iflags;
 161         struct completion gh_wait;
 162         unsigned long gh_ip;
 163 };
 164
 165 enum {
 166         GLF_PLUG                = 0,
 167         GLF_LOCK                = 1,
 168         GLF_STICKY              = 2,
 169         GLF_PREFETCH            = 3,
 170         GLF_SYNC                = 4,
 171         GLF_DIRTY               = 5,
 172         GLF_SKIP_WAITERS2       = 6,
 173         GLF_GREEDY              = 7,
 174 };
 175
 176 struct gfs2_glock {
 177         struct list_head gl_list;
 178         unsigned long gl_flags;         /* GLF_... */
 179         struct lm_lockname gl_name;
 180         struct kref gl_ref;
 181
 182         spinlock_t gl_spin;
 183
 184         unsigned int gl_state;
 185         struct task_struct *gl_owner;
 186         unsigned long gl_ip;
 187         struct list_head gl_holders;
 188         struct list_head gl_waiters1;   /* HIF_MUTEX */
 189         struct list_head gl_waiters2;   /* HIF_DEMOTE, HIF_GREEDY */
 190         struct list_head gl_waiters3;   /* HIF_PROMOTE */
 191
 192         struct gfs2_glock_operations *gl_ops;
 193
 194         struct gfs2_holder *gl_req_gh;
 195         gfs2_glop_bh_t gl_req_bh;
 196
 197         lm_lock_t *gl_lock;
 198         char *gl_lvb;
 199         atomic_t gl_lvb_count;
 200
 201         uint64_t gl_vn;
 202         unsigned long gl_stamp;
 203         void *gl_object;
 204
 205         struct gfs2_gl_hash_bucket *gl_bucket;
 206         struct list_head gl_reclaim;
 207
 208         struct gfs2_sbd *gl_sbd;
 209
 210         struct inode *gl_aspace;
 211         struct gfs2_log_element gl_le;
 212         struct list_head gl_ail_list;
 213         atomic_t gl_ail_count;
 214 };
 215
 216 struct gfs2_alloc {
 217         /* Quota stuff */
 218
 219         struct gfs2_quota_data *al_qd[4];
 220         struct gfs2_holder al_qd_ghs[4];
 221         unsigned int al_qd_num;
 222
 223         u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */
 224         u32 al_alloced; /* Filled in by gfs2_alloc_*() */
 225
 226         /* Filled in by gfs2_inplace_reserve() */
 227
 228         unsigned int al_line;
 229         char *al_file;
 230         struct gfs2_holder al_ri_gh;
 231         struct gfs2_holder al_rgd_gh;
 232         struct gfs2_rgrpd *al_rgd;
 233
 234 };
 235
 236 enum {
 237         GIF_QD_LOCKED           = 1,
 238         GIF_PAGED               = 2,
 239         GIF_SW_PAGED            = 3,
 240 };
 241
 242 struct gfs2_inode {
 243         struct inode i_inode;
 244         struct gfs2_inum i_num;
 245
 246         unsigned long i_flags;          /* GIF_... */
 247
 248         uint64_t i_vn;
 249         struct gfs2_dinode i_di; /* To be replaced by ref to block */
 250
 251         struct gfs2_glock *i_gl; /* Move into i_gh? */
 252         struct gfs2_holder i_iopen_gh;
 253         struct gfs2_holder i_gh; /* for prepare/commit_write only */
 254         struct gfs2_alloc i_alloc;
 255         uint64_t i_last_rg_alloc;
 256
 257         spinlock_t i_spin;
 258         struct rw_semaphore i_rw_mutex;
 259         unsigned int i_greedy;
 260         unsigned long i_last_pfault;
 261
 262         struct buffer_head *i_cache[GFS2_MAX_META_HEIGHT];
 263 };
 264
 265 /*
 266  * Since i_inode is the first element of struct gfs2_inode,
 267  * this is effectively a cast.
 268  */
 269 static inline struct gfs2_inode *GFS2_I(struct inode *inode)
 270 {
 271         return container_of(inode, struct gfs2_inode, i_inode);
 272 }
 273
 274 /* To be removed? */
 275 static inline struct gfs2_sbd *GFS2_SB(struct inode *inode)
 276 {
 277         return inode->i_sb->s_fs_info;
 278 }
 279
 280 enum {
 281         GFF_DID_DIRECT_ALLOC    = 0,
 282         GFF_EXLOCK = 1,
 283 };
 284
 285 struct gfs2_file {
 286         unsigned long f_flags;          /* GFF_... */
 287         struct mutex f_fl_mutex;
 288         struct gfs2_holder f_fl_gh;
 289 };
 290
 291 struct gfs2_revoke {
 292         struct gfs2_log_element rv_le;
 293         uint64_t rv_blkno;
 294 };
 295
 296 struct gfs2_revoke_replay {
 297         struct list_head rr_list;
 298         uint64_t rr_blkno;
 299         unsigned int rr_where;
 300 };
 301
 302 enum {
 303         QDF_USER                = 0,
 304         QDF_CHANGE              = 1,
 305         QDF_LOCKED              = 2,
 306 };
 307
 308 struct gfs2_quota_lvb {
 309         uint32_t qb_magic;
 310         uint32_t __pad;
 311         uint64_t qb_limit;      /* Hard limit of # blocks to alloc */
 312         uint64_t qb_warn;       /* Warn user when alloc is above this # */
 313         int64_t qb_value;       /* Current # blocks allocated */
 314 };
 315
 316 struct gfs2_quota_data {
 317         struct list_head qd_list;
 318         unsigned int qd_count;
 319
 320         uint32_t qd_id;
 321         unsigned long qd_flags;         /* QDF_... */
 322
 323         int64_t qd_change;
 324         int64_t qd_change_sync;
 325
 326         unsigned int qd_slot;
 327         unsigned int qd_slot_count;
 328
 329         struct buffer_head *qd_bh;
 330         struct gfs2_quota_change *qd_bh_qc;
 331         unsigned int qd_bh_count;
 332
 333         struct gfs2_glock *qd_gl;
 334         struct gfs2_quota_lvb qd_qb;
 335
 336         uint64_t qd_sync_gen;
 337         unsigned long qd_last_warn;
 338         unsigned long qd_last_touched;
 339 };
 340
 341 struct gfs2_log_buf {
 342         struct list_head lb_list;
 343         struct buffer_head *lb_bh;
 344         struct buffer_head *lb_real;
 345 };
 346
 347 struct gfs2_trans {
 348         unsigned long tr_ip;
 349
 350         unsigned int tr_blocks;
 351         unsigned int tr_revokes;
 352         unsigned int tr_reserved;
 353
 354         struct gfs2_holder tr_t_gh;
 355
 356         int tr_touched;
 357
 358         unsigned int tr_num_buf;
 359         unsigned int tr_num_buf_new;
 360         unsigned int tr_num_buf_rm;
 361         struct list_head tr_list_buf;
 362
 363         unsigned int tr_num_revoke;
 364         unsigned int tr_num_revoke_rm;
 365 };
 366
 367 struct gfs2_ail {
 368         struct list_head ai_list;
 369
 370         unsigned int ai_first;
 371         struct list_head ai_ail1_list;
 372         struct list_head ai_ail2_list;
 373
 374         uint64_t ai_sync_gen;
 375 };
 376
 377 struct gfs2_jdesc {
 378         struct list_head jd_list;
 379
 380         struct inode *jd_inode;
 381         unsigned int jd_jid;
 382         int jd_dirty;
 383
 384         unsigned int jd_blocks;
 385 };
 386
 387 #define GFS2_GLOCKD_DEFAULT     1
 388 #define GFS2_GLOCKD_MAX         16
 389
 390 #define GFS2_QUOTA_DEFAULT      GFS2_QUOTA_OFF
 391 #define GFS2_QUOTA_OFF          0
 392 #define GFS2_QUOTA_ACCOUNT      1
 393 #define GFS2_QUOTA_ON           2
 394
 395 #define GFS2_DATA_DEFAULT       GFS2_DATA_ORDERED
 396 #define GFS2_DATA_WRITEBACK     1
 397 #define GFS2_DATA_ORDERED       2
 398
 399 struct gfs2_args {
 400         char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */
 401         char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */
 402         char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */
 403         int ar_spectator; /* Don't get a journal because we're always RO */
 404         int ar_ignore_local_fs; /* Don't optimize even if local_fs is 1 */
 405         int ar_localflocks; /* Let the VFS do flock|fcntl locks for us */
 406         int ar_localcaching; /* Local-style caching (dangerous on multihost) */
 407         int ar_debug; /* Oops on errors instead of trying to be graceful */
 408         int ar_upgrade; /* Upgrade ondisk/multihost format */
 409         unsigned int ar_num_glockd; /* Number of glockd threads */
 410         int ar_posix_acl; /* Enable posix acls */
 411         int ar_quota; /* off/account/on */
 412         int ar_suiddir; /* suiddir support */
 413         int ar_data; /* ordered/writeback */
 414 };
 415
 416 struct gfs2_tune {
 417         spinlock_t gt_spin;
 418
 419         unsigned int gt_ilimit;
 420         unsigned int gt_ilimit_tries;
 421         unsigned int gt_ilimit_min;
 422         unsigned int gt_demote_secs; /* Cache retention for unheld glock */
 423         unsigned int gt_incore_log_blocks;
 424         unsigned int gt_log_flush_secs;
 425         unsigned int gt_jindex_refresh_secs; /* Check for new journal index */
 426
 427         unsigned int gt_scand_secs;
 428         unsigned int gt_recoverd_secs;
 429         unsigned int gt_logd_secs;
 430         unsigned int gt_quotad_secs;
 431
 432         unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */
 433         unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */
 434         unsigned int gt_quota_scale_num; /* Numerator */
 435         unsigned int gt_quota_scale_den; /* Denominator */
 436         unsigned int gt_quota_cache_secs;
 437         unsigned int gt_quota_quantum; /* Secs between syncs to quota file */
 438         unsigned int gt_atime_quantum; /* Min secs between atime updates */
 439         unsigned int gt_new_files_jdata;
 440         unsigned int gt_new_files_directio;
 441         unsigned int gt_max_atomic_write; /* Split big writes into this size */
 442         unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */
 443         unsigned int gt_lockdump_size;
 444         unsigned int gt_stall_secs; /* Detects trouble! */
 445         unsigned int gt_complain_secs;
 446         unsigned int gt_reclaim_limit; /* Max num of glocks in reclaim list */
 447         unsigned int gt_entries_per_readdir;
 448         unsigned int gt_prefetch_secs; /* Usage window for prefetched glocks */
 449         unsigned int gt_greedy_default;
 450         unsigned int gt_greedy_quantum;
 451         unsigned int gt_greedy_max;
 452         unsigned int gt_statfs_quantum;
 453         unsigned int gt_statfs_slow;
 454 };
 455
 456 struct gfs2_gl_hash_bucket {
 457         rwlock_t hb_lock;
 458         struct list_head hb_list;
 459 };
 460
 461 enum {
 462         SDF_JOURNAL_CHECKED     = 0,
 463         SDF_JOURNAL_LIVE        = 1,
 464         SDF_SHUTDOWN            = 2,
 465         SDF_NOATIME             = 3,
 466 };
 467
 468 #define GFS2_GL_HASH_SHIFT      13
 469 #define GFS2_GL_HASH_SIZE       (1 << GFS2_GL_HASH_SHIFT)
 470 #define GFS2_GL_HASH_MASK       (GFS2_GL_HASH_SIZE - 1)
 471 #define GFS2_FSNAME_LEN         256
 472
 473 struct gfs2_sbd {
 474         struct super_block *sd_vfs;
 475         struct kobject sd_kobj;
 476         unsigned long sd_flags; /* SDF_... */
 477         struct gfs2_sb sd_sb;
 478
 479         /* Constants computed on mount */
 480
 481         uint32_t sd_fsb2bb;
 482         uint32_t sd_fsb2bb_shift;
 483         uint32_t sd_diptrs;     /* Number of pointers in a dinode */
 484         uint32_t sd_inptrs;     /* Number of pointers in a indirect block */
 485         uint32_t sd_jbsize;     /* Size of a journaled data block */
 486         uint32_t sd_hash_bsize; /* sizeof(exhash block) */
 487         uint32_t sd_hash_bsize_shift;
 488         uint32_t sd_hash_ptrs;  /* Number of pointers in a hash block */
 489         uint32_t sd_qc_per_block;
 490         uint32_t sd_max_dirres; /* Max blocks needed to add a directory entry */
 491         uint32_t sd_max_height; /* Max height of a file's metadata tree */
 492         uint64_t sd_heightsize[GFS2_MAX_META_HEIGHT];
 493         uint32_t sd_max_jheight; /* Max height of journaled file's meta tree */
 494         uint64_t sd_jheightsize[GFS2_MAX_META_HEIGHT];
 495
 496         struct gfs2_args sd_args;       /* Mount arguments */
 497         struct gfs2_tune sd_tune;       /* Filesystem tuning structure */
 498
 499         /* Lock Stuff */
 500
 501         struct lm_lockstruct sd_lockstruct;
 502         struct gfs2_gl_hash_bucket sd_gl_hash[GFS2_GL_HASH_SIZE];
 503         struct list_head sd_reclaim_list;
 504         spinlock_t sd_reclaim_lock;
 505         wait_queue_head_t sd_reclaim_wq;
 506         atomic_t sd_reclaim_count;
 507         struct gfs2_holder sd_live_gh;
 508         struct gfs2_glock *sd_rename_gl;
 509         struct gfs2_glock *sd_trans_gl;
 510         struct mutex sd_invalidate_inodes_mutex;
 511
 512         /* Inode Stuff */
 513
 514         struct inode *sd_master_dir;
 515         struct inode *sd_jindex;
 516         struct inode *sd_inum_inode;
 517         struct inode *sd_statfs_inode;
 518         struct inode *sd_ir_inode;
 519         struct inode *sd_sc_inode;
 520         struct inode *sd_qc_inode;
 521         struct inode *sd_rindex;
 522         struct inode *sd_quota_inode;
 523
 524         /* Inum stuff */
 525
 526         struct mutex sd_inum_mutex;
 527
 528         /* StatFS stuff */
 529
 530         spinlock_t sd_statfs_spin;
 531         struct mutex sd_statfs_mutex;
 532         struct gfs2_statfs_change sd_statfs_master;
 533         struct gfs2_statfs_change sd_statfs_local;
 534         unsigned long sd_statfs_sync_time;
 535
 536         /* Resource group stuff */
 537
 538         uint64_t sd_rindex_vn;
 539         spinlock_t sd_rindex_spin;
 540         struct mutex sd_rindex_mutex;
 541         struct list_head sd_rindex_list;
 542         struct list_head sd_rindex_mru_list;
 543         struct list_head sd_rindex_recent_list;
 544         struct gfs2_rgrpd *sd_rindex_forward;
 545         unsigned int sd_rgrps;
 546
 547         /* Journal index stuff */
 548
 549         struct list_head sd_jindex_list;
 550         spinlock_t sd_jindex_spin;
 551         struct mutex sd_jindex_mutex;
 552         unsigned int sd_journals;
 553         unsigned long sd_jindex_refresh_time;
 554
 555         struct gfs2_jdesc *sd_jdesc;
 556         struct gfs2_holder sd_journal_gh;
 557         struct gfs2_holder sd_jinode_gh;
 558
 559         struct gfs2_holder sd_ir_gh;
 560         struct gfs2_holder sd_sc_gh;
 561         struct gfs2_holder sd_qc_gh;
 562
 563         /* Daemon stuff */
 564
 565         struct task_struct *sd_scand_process;
 566         struct task_struct *sd_recoverd_process;
 567         struct task_struct *sd_logd_process;
 568         struct task_struct *sd_quotad_process;
 569         struct task_struct *sd_glockd_process[GFS2_GLOCKD_MAX];
 570         unsigned int sd_glockd_num;
 571
 572         /* Quota stuff */
 573
 574         struct list_head sd_quota_list;
 575         atomic_t sd_quota_count;
 576         spinlock_t sd_quota_spin;
 577         struct mutex sd_quota_mutex;
 578
 579         unsigned int sd_quota_slots;
 580         unsigned int sd_quota_chunks;
 581         unsigned char **sd_quota_bitmap;
 582
 583         uint64_t sd_quota_sync_gen;
 584         unsigned long sd_quota_sync_time;
 585
 586         /* Log stuff */
 587
 588         spinlock_t sd_log_lock;
 589
 590         unsigned int sd_log_blks_reserved;
 591         unsigned int sd_log_commited_buf;
 592         unsigned int sd_log_commited_revoke;
 593
 594         unsigned int sd_log_num_gl;
 595         unsigned int sd_log_num_buf;
 596         unsigned int sd_log_num_revoke;
 597         unsigned int sd_log_num_rg;
 598         unsigned int sd_log_num_databuf;
 599         unsigned int sd_log_num_jdata;
 600         unsigned int sd_log_num_hdrs;
 601
 602         struct list_head sd_log_le_gl;
 603         struct list_head sd_log_le_buf;
 604         struct list_head sd_log_le_revoke;
 605         struct list_head sd_log_le_rg;
 606         struct list_head sd_log_le_databuf;
 607
 608         unsigned int sd_log_blks_free;
 609         struct mutex sd_log_reserve_mutex;
 610
 611         uint64_t sd_log_sequence;
 612         unsigned int sd_log_head;
 613         unsigned int sd_log_tail;
 614         int sd_log_idle;
 615
 616         unsigned long sd_log_flush_time;
 617         struct rw_semaphore sd_log_flush_lock;
 618         struct list_head sd_log_flush_list;
 619
 620         unsigned int sd_log_flush_head;
 621         uint64_t sd_log_flush_wrapped;
 622
 623         struct list_head sd_ail1_list;
 624         struct list_head sd_ail2_list;
 625         uint64_t sd_ail_sync_gen;
 626
 627         /* Replay stuff */
 628
 629         struct list_head sd_revoke_list;
 630         unsigned int sd_replay_tail;
 631
 632         unsigned int sd_found_blocks;
 633         unsigned int sd_found_revokes;
 634         unsigned int sd_replayed_blocks;
 635
 636         /* For quiescing the filesystem */
 637
 638         struct gfs2_holder sd_freeze_gh;
 639         struct mutex sd_freeze_lock;
 640         unsigned int sd_freeze_count;
 641
 642         /* Counters */
 643
 644         atomic_t sd_glock_count;
 645         atomic_t sd_glock_held_count;
 646         atomic_t sd_inode_count;
 647         atomic_t sd_reclaimed;
 648
 649         char sd_fsname[GFS2_FSNAME_LEN];
 650         char sd_table_name[GFS2_FSNAME_LEN];
 651         char sd_proto_name[GFS2_FSNAME_LEN];
 652
 653         /* Debugging crud */
 654
 655         unsigned long sd_last_warning;
 656 };
 657
 658 #endif /* __INCORE_DOT_H__ */
 659