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/kobject.h> 15 #include <linux/workqueue.h> 16 #include <linux/dlm.h> 17 #include <linux/buffer_head.h> 18 #include <linux/rcupdate.h> 19 #include <linux/rculist_bl.h> 20 #include <linux/completion.h> 21 #include <linux/rbtree.h> 22 #include <linux/ktime.h> 23 #include <linux/percpu.h> 24 25 #define DIO_WAIT 0x00000010 26 #define DIO_METADATA 0x00000020 27 28 struct gfs2_log_operations; 29 struct gfs2_log_element; 30 struct gfs2_holder; 31 struct gfs2_glock; 32 struct gfs2_quota_data; 33 struct gfs2_trans; 34 struct gfs2_ail; 35 struct gfs2_jdesc; 36 struct gfs2_sbd; 37 struct lm_lockops; 38 39 typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret); 40 41 struct gfs2_log_header_host { 42 u64 lh_sequence; /* Sequence number of this transaction */ 43 u32 lh_flags; /* GFS2_LOG_HEAD_... */ 44 u32 lh_tail; /* Block number of log tail */ 45 u32 lh_blkno; 46 u32 lh_hash; 47 }; 48 49 /* 50 * Structure of operations that are associated with each 51 * type of element in the log. 52 */ 53 54 struct gfs2_log_operations { 55 void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le); 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_host *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 #define GBF_FULL 1 73 74 struct gfs2_bitmap { 75 struct buffer_head *bi_bh; 76 char *bi_clone; 77 unsigned long bi_flags; 78 u32 bi_offset; 79 u32 bi_start; 80 u32 bi_len; 81 }; 82 83 struct gfs2_rgrpd { 84 struct rb_node rd_node; /* Link with superblock */ 85 struct gfs2_glock *rd_gl; /* Glock for this rgrp */ 86 u64 rd_addr; /* grp block disk address */ 87 u64 rd_data0; /* first data location */ 88 u32 rd_length; /* length of rgrp header in fs blocks */ 89 u32 rd_data; /* num of data blocks in rgrp */ 90 u32 rd_bitbytes; /* number of bytes in data bitmaps */ 91 u32 rd_free; 92 u32 rd_free_clone; 93 u32 rd_dinodes; 94 u64 rd_igeneration; 95 struct gfs2_bitmap *rd_bits; 96 struct gfs2_sbd *rd_sbd; 97 u32 rd_last_alloc; 98 u32 rd_flags; 99 #define GFS2_RDF_CHECK 0x10000000 /* check for unlinked inodes */ 100 #define GFS2_RDF_UPTODATE 0x20000000 /* rg is up to date */ 101 #define GFS2_RDF_ERROR 0x40000000 /* error in rg */ 102 #define GFS2_RDF_MASK 0xf0000000 /* mask for internal flags */ 103 }; 104 105 enum gfs2_state_bits { 106 BH_Pinned = BH_PrivateStart, 107 BH_Escaped = BH_PrivateStart + 1, 108 BH_Zeronew = BH_PrivateStart + 2, 109 }; 110 111 BUFFER_FNS(Pinned, pinned) 112 TAS_BUFFER_FNS(Pinned, pinned) 113 BUFFER_FNS(Escaped, escaped) 114 TAS_BUFFER_FNS(Escaped, escaped) 115 BUFFER_FNS(Zeronew, zeronew) 116 TAS_BUFFER_FNS(Zeronew, zeronew) 117 118 struct gfs2_bufdata { 119 struct buffer_head *bd_bh; 120 struct gfs2_glock *bd_gl; 121 122 union { 123 struct list_head list_tr; 124 u64 blkno; 125 } u; 126 #define bd_list_tr u.list_tr 127 #define bd_blkno u.blkno 128 129 struct gfs2_log_element bd_le; 130 131 struct gfs2_ail *bd_ail; 132 struct list_head bd_ail_st_list; 133 struct list_head bd_ail_gl_list; 134 }; 135 136 /* 137 * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a 138 * prefix of lock_dlm_ gets awkward. 139 */ 140 141 #define GDLM_STRNAME_BYTES 25 142 #define GDLM_LVB_SIZE 32 143 144 /* 145 * ls_recover_flags: 146 * 147 * DFL_BLOCK_LOCKS: dlm is in recovery and will grant locks that had been 148 * held by failed nodes whose journals need recovery. Those locks should 149 * only be used for journal recovery until the journal recovery is done. 150 * This is set by the dlm recover_prep callback and cleared by the 151 * gfs2_control thread when journal recovery is complete. To avoid 152 * races between recover_prep setting and gfs2_control clearing, recover_spin 153 * is held while changing this bit and reading/writing recover_block 154 * and recover_start. 155 * 156 * DFL_NO_DLM_OPS: dlm lockspace ops/callbacks are not being used. 157 * 158 * DFL_FIRST_MOUNT: this node is the first to mount this fs and is doing 159 * recovery of all journals before allowing other nodes to mount the fs. 160 * This is cleared when FIRST_MOUNT_DONE is set. 161 * 162 * DFL_FIRST_MOUNT_DONE: this node was the first mounter, and has finished 163 * recovery of all journals, and now allows other nodes to mount the fs. 164 * 165 * DFL_MOUNT_DONE: gdlm_mount has completed successfully and cleared 166 * BLOCK_LOCKS for the first time. The gfs2_control thread should now 167 * control clearing BLOCK_LOCKS for further recoveries. 168 * 169 * DFL_UNMOUNT: gdlm_unmount sets to keep sdp off gfs2_control_wq. 170 * 171 * DFL_DLM_RECOVERY: set while dlm is in recovery, between recover_prep() 172 * and recover_done(), i.e. set while recover_block == recover_start. 173 */ 174 175 enum { 176 DFL_BLOCK_LOCKS = 0, 177 DFL_NO_DLM_OPS = 1, 178 DFL_FIRST_MOUNT = 2, 179 DFL_FIRST_MOUNT_DONE = 3, 180 DFL_MOUNT_DONE = 4, 181 DFL_UNMOUNT = 5, 182 DFL_DLM_RECOVERY = 6, 183 }; 184 185 struct lm_lockname { 186 u64 ln_number; 187 unsigned int ln_type; 188 }; 189 190 #define lm_name_equal(name1, name2) \ 191 (((name1)->ln_number == (name2)->ln_number) && \ 192 ((name1)->ln_type == (name2)->ln_type)) 193 194 195 struct gfs2_glock_operations { 196 void (*go_xmote_th) (struct gfs2_glock *gl); 197 int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh); 198 void (*go_inval) (struct gfs2_glock *gl, int flags); 199 int (*go_demote_ok) (const struct gfs2_glock *gl); 200 int (*go_lock) (struct gfs2_holder *gh); 201 void (*go_unlock) (struct gfs2_holder *gh); 202 int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl); 203 void (*go_callback) (struct gfs2_glock *gl); 204 const int go_type; 205 const unsigned long go_flags; 206 #define GLOF_ASPACE 1 207 }; 208 209 enum { 210 GFS2_LKS_SRTT = 0, /* Non blocking smoothed round trip time */ 211 GFS2_LKS_SRTTVAR = 1, /* Non blocking smoothed variance */ 212 GFS2_LKS_SRTTB = 2, /* Blocking smoothed round trip time */ 213 GFS2_LKS_SRTTVARB = 3, /* Blocking smoothed variance */ 214 GFS2_LKS_SIRT = 4, /* Smoothed Inter-request time */ 215 GFS2_LKS_SIRTVAR = 5, /* Smoothed Inter-request variance */ 216 GFS2_LKS_DCOUNT = 6, /* Count of dlm requests */ 217 GFS2_LKS_QCOUNT = 7, /* Count of gfs2_holder queues */ 218 GFS2_NR_LKSTATS 219 }; 220 221 struct gfs2_lkstats { 222 s64 stats[GFS2_NR_LKSTATS]; 223 }; 224 225 enum { 226 /* States */ 227 HIF_HOLDER = 6, /* Set for gh that "holds" the glock */ 228 HIF_FIRST = 7, 229 HIF_WAIT = 10, 230 }; 231 232 struct gfs2_holder { 233 struct list_head gh_list; 234 235 struct gfs2_glock *gh_gl; 236 struct pid *gh_owner_pid; 237 unsigned int gh_state; 238 unsigned gh_flags; 239 240 int gh_error; 241 unsigned long gh_iflags; /* HIF_... */ 242 unsigned long gh_ip; 243 }; 244 245 enum { 246 GLF_LOCK = 1, 247 GLF_DEMOTE = 3, 248 GLF_PENDING_DEMOTE = 4, 249 GLF_DEMOTE_IN_PROGRESS = 5, 250 GLF_DIRTY = 6, 251 GLF_LFLUSH = 7, 252 GLF_INVALIDATE_IN_PROGRESS = 8, 253 GLF_REPLY_PENDING = 9, 254 GLF_INITIAL = 10, 255 GLF_FROZEN = 11, 256 GLF_QUEUED = 12, 257 GLF_LRU = 13, 258 GLF_OBJECT = 14, /* Used only for tracing */ 259 GLF_BLOCKING = 15, 260 }; 261 262 struct gfs2_glock { 263 struct hlist_bl_node gl_list; 264 struct gfs2_sbd *gl_sbd; 265 unsigned long gl_flags; /* GLF_... */ 266 struct lm_lockname gl_name; 267 atomic_t gl_ref; 268 269 spinlock_t gl_spin; 270 271 /* State fields protected by gl_spin */ 272 unsigned int gl_state:2, /* Current state */ 273 gl_target:2, /* Target state */ 274 gl_demote_state:2, /* State requested by remote node */ 275 gl_req:2, /* State in last dlm request */ 276 gl_reply:8; /* Last reply from the dlm */ 277 278 unsigned int gl_hash; 279 unsigned long gl_demote_time; /* time of first demote request */ 280 long gl_hold_time; 281 struct list_head gl_holders; 282 283 const struct gfs2_glock_operations *gl_ops; 284 ktime_t gl_dstamp; 285 struct gfs2_lkstats gl_stats; 286 struct dlm_lksb gl_lksb; 287 char gl_lvb[32]; 288 unsigned long gl_tchange; 289 void *gl_object; 290 291 struct list_head gl_lru; 292 struct list_head gl_ail_list; 293 atomic_t gl_ail_count; 294 atomic_t gl_revokes; 295 struct delayed_work gl_work; 296 struct work_struct gl_delete; 297 struct rcu_head gl_rcu; 298 }; 299 300 #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */ 301 302 struct gfs2_qadata { /* quota allocation data */ 303 /* Quota stuff */ 304 struct gfs2_quota_data *qa_qd[2*MAXQUOTAS]; 305 struct gfs2_holder qa_qd_ghs[2*MAXQUOTAS]; 306 unsigned int qa_qd_num; 307 }; 308 309 struct gfs2_blkreserv { 310 u32 rs_requested; /* Filled in by caller of gfs2_inplace_reserve() */ 311 struct gfs2_holder rs_rgd_gh; /* Filled in by gfs2_inplace_reserve() */ 312 }; 313 314 enum { 315 GIF_INVALID = 0, 316 GIF_QD_LOCKED = 1, 317 GIF_ALLOC_FAILED = 2, 318 GIF_SW_PAGED = 3, 319 }; 320 321 322 struct gfs2_inode { 323 struct inode i_inode; 324 u64 i_no_addr; 325 u64 i_no_formal_ino; 326 u64 i_generation; 327 u64 i_eattr; 328 unsigned long i_flags; /* GIF_... */ 329 struct gfs2_glock *i_gl; /* Move into i_gh? */ 330 struct gfs2_holder i_iopen_gh; 331 struct gfs2_holder i_gh; /* for prepare/commit_write only */ 332 struct gfs2_qadata *i_qadata; /* quota allocation data */ 333 struct gfs2_blkreserv *i_res; /* resource group block reservation */ 334 struct gfs2_rgrpd *i_rgd; 335 u64 i_goal; /* goal block for allocations */ 336 struct rw_semaphore i_rw_mutex; 337 struct list_head i_trunc_list; 338 __be64 *i_hash_cache; 339 u32 i_entries; 340 u32 i_diskflags; 341 u8 i_height; 342 u8 i_depth; 343 }; 344 345 /* 346 * Since i_inode is the first element of struct gfs2_inode, 347 * this is effectively a cast. 348 */ 349 static inline struct gfs2_inode *GFS2_I(struct inode *inode) 350 { 351 return container_of(inode, struct gfs2_inode, i_inode); 352 } 353 354 static inline struct gfs2_sbd *GFS2_SB(const struct inode *inode) 355 { 356 return inode->i_sb->s_fs_info; 357 } 358 359 struct gfs2_file { 360 struct mutex f_fl_mutex; 361 struct gfs2_holder f_fl_gh; 362 }; 363 364 struct gfs2_revoke_replay { 365 struct list_head rr_list; 366 u64 rr_blkno; 367 unsigned int rr_where; 368 }; 369 370 enum { 371 QDF_USER = 0, 372 QDF_CHANGE = 1, 373 QDF_LOCKED = 2, 374 QDF_REFRESH = 3, 375 }; 376 377 struct gfs2_quota_data { 378 struct list_head qd_list; 379 struct list_head qd_reclaim; 380 381 atomic_t qd_count; 382 383 u32 qd_id; 384 unsigned long qd_flags; /* QDF_... */ 385 386 s64 qd_change; 387 s64 qd_change_sync; 388 389 unsigned int qd_slot; 390 unsigned int qd_slot_count; 391 392 struct buffer_head *qd_bh; 393 struct gfs2_quota_change *qd_bh_qc; 394 unsigned int qd_bh_count; 395 396 struct gfs2_glock *qd_gl; 397 struct gfs2_quota_lvb qd_qb; 398 399 u64 qd_sync_gen; 400 unsigned long qd_last_warn; 401 }; 402 403 struct gfs2_trans { 404 unsigned long tr_ip; 405 406 unsigned int tr_blocks; 407 unsigned int tr_revokes; 408 unsigned int tr_reserved; 409 410 struct gfs2_holder tr_t_gh; 411 412 int tr_touched; 413 414 unsigned int tr_num_buf; 415 unsigned int tr_num_buf_new; 416 unsigned int tr_num_databuf_new; 417 unsigned int tr_num_buf_rm; 418 unsigned int tr_num_databuf_rm; 419 struct list_head tr_list_buf; 420 421 unsigned int tr_num_revoke; 422 unsigned int tr_num_revoke_rm; 423 }; 424 425 struct gfs2_ail { 426 struct list_head ai_list; 427 428 unsigned int ai_first; 429 struct list_head ai_ail1_list; 430 struct list_head ai_ail2_list; 431 }; 432 433 struct gfs2_journal_extent { 434 struct list_head extent_list; 435 436 unsigned int lblock; /* First logical block */ 437 u64 dblock; /* First disk block */ 438 u64 blocks; 439 }; 440 441 struct gfs2_jdesc { 442 struct list_head jd_list; 443 struct list_head extent_list; 444 struct work_struct jd_work; 445 struct inode *jd_inode; 446 unsigned long jd_flags; 447 #define JDF_RECOVERY 1 448 unsigned int jd_jid; 449 unsigned int jd_blocks; 450 int jd_recover_error; 451 }; 452 453 struct gfs2_statfs_change_host { 454 s64 sc_total; 455 s64 sc_free; 456 s64 sc_dinodes; 457 }; 458 459 #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF 460 #define GFS2_QUOTA_OFF 0 461 #define GFS2_QUOTA_ACCOUNT 1 462 #define GFS2_QUOTA_ON 2 463 464 #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED 465 #define GFS2_DATA_WRITEBACK 1 466 #define GFS2_DATA_ORDERED 2 467 468 #define GFS2_ERRORS_DEFAULT GFS2_ERRORS_WITHDRAW 469 #define GFS2_ERRORS_WITHDRAW 0 470 #define GFS2_ERRORS_CONTINUE 1 /* place holder for future feature */ 471 #define GFS2_ERRORS_RO 2 /* place holder for future feature */ 472 #define GFS2_ERRORS_PANIC 3 473 474 struct gfs2_args { 475 char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */ 476 char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */ 477 char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */ 478 unsigned int ar_spectator:1; /* Don't get a journal */ 479 unsigned int ar_localflocks:1; /* Let the VFS do flock|fcntl */ 480 unsigned int ar_debug:1; /* Oops on errors */ 481 unsigned int ar_posix_acl:1; /* Enable posix acls */ 482 unsigned int ar_quota:2; /* off/account/on */ 483 unsigned int ar_suiddir:1; /* suiddir support */ 484 unsigned int ar_data:2; /* ordered/writeback */ 485 unsigned int ar_meta:1; /* mount metafs */ 486 unsigned int ar_discard:1; /* discard requests */ 487 unsigned int ar_errors:2; /* errors=withdraw | panic */ 488 unsigned int ar_nobarrier:1; /* do not send barriers */ 489 int ar_commit; /* Commit interval */ 490 int ar_statfs_quantum; /* The fast statfs interval */ 491 int ar_quota_quantum; /* The quota interval */ 492 int ar_statfs_percent; /* The % change to force sync */ 493 }; 494 495 struct gfs2_tune { 496 spinlock_t gt_spin; 497 498 unsigned int gt_logd_secs; 499 500 unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */ 501 unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */ 502 unsigned int gt_quota_scale_num; /* Numerator */ 503 unsigned int gt_quota_scale_den; /* Denominator */ 504 unsigned int gt_quota_quantum; /* Secs between syncs to quota file */ 505 unsigned int gt_new_files_jdata; 506 unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */ 507 unsigned int gt_complain_secs; 508 unsigned int gt_statfs_quantum; 509 unsigned int gt_statfs_slow; 510 }; 511 512 enum { 513 SDF_JOURNAL_CHECKED = 0, 514 SDF_JOURNAL_LIVE = 1, 515 SDF_SHUTDOWN = 2, 516 SDF_NOBARRIERS = 3, 517 SDF_NORECOVERY = 4, 518 SDF_DEMOTE = 5, 519 SDF_NOJOURNALID = 6, 520 SDF_RORECOVERY = 7, /* read only recovery */ 521 }; 522 523 #define GFS2_FSNAME_LEN 256 524 525 struct gfs2_inum_host { 526 u64 no_formal_ino; 527 u64 no_addr; 528 }; 529 530 struct gfs2_sb_host { 531 u32 sb_magic; 532 u32 sb_type; 533 u32 sb_format; 534 535 u32 sb_fs_format; 536 u32 sb_multihost_format; 537 u32 sb_bsize; 538 u32 sb_bsize_shift; 539 540 struct gfs2_inum_host sb_master_dir; 541 struct gfs2_inum_host sb_root_dir; 542 543 char sb_lockproto[GFS2_LOCKNAME_LEN]; 544 char sb_locktable[GFS2_LOCKNAME_LEN]; 545 }; 546 547 /* 548 * lm_mount() return values 549 * 550 * ls_jid - the journal ID this node should use 551 * ls_first - this node is the first to mount the file system 552 * ls_lockspace - lock module's context for this file system 553 * ls_ops - lock module's functions 554 */ 555 556 struct lm_lockstruct { 557 int ls_jid; 558 unsigned int ls_first; 559 unsigned int ls_nodir; 560 const struct lm_lockops *ls_ops; 561 dlm_lockspace_t *ls_dlm; 562 563 int ls_recover_jid_done; /* These two are deprecated, */ 564 int ls_recover_jid_status; /* used previously by gfs_controld */ 565 566 struct dlm_lksb ls_mounted_lksb; /* mounted_lock */ 567 struct dlm_lksb ls_control_lksb; /* control_lock */ 568 char ls_control_lvb[GDLM_LVB_SIZE]; /* control_lock lvb */ 569 struct completion ls_sync_wait; /* {control,mounted}_{lock,unlock} */ 570 571 spinlock_t ls_recover_spin; /* protects following fields */ 572 unsigned long ls_recover_flags; /* DFL_ */ 573 uint32_t ls_recover_mount; /* gen in first recover_done cb */ 574 uint32_t ls_recover_start; /* gen in last recover_done cb */ 575 uint32_t ls_recover_block; /* copy recover_start in last recover_prep */ 576 uint32_t ls_recover_size; /* size of recover_submit, recover_result */ 577 uint32_t *ls_recover_submit; /* gen in last recover_slot cb per jid */ 578 uint32_t *ls_recover_result; /* result of last jid recovery */ 579 }; 580 581 struct gfs2_pcpu_lkstats { 582 /* One struct for each glock type */ 583 struct gfs2_lkstats lkstats[10]; 584 }; 585 586 struct gfs2_sbd { 587 struct super_block *sd_vfs; 588 struct gfs2_pcpu_lkstats __percpu *sd_lkstats; 589 struct kobject sd_kobj; 590 unsigned long sd_flags; /* SDF_... */ 591 struct gfs2_sb_host sd_sb; 592 593 /* Constants computed on mount */ 594 595 u32 sd_fsb2bb; 596 u32 sd_fsb2bb_shift; 597 u32 sd_diptrs; /* Number of pointers in a dinode */ 598 u32 sd_inptrs; /* Number of pointers in a indirect block */ 599 u32 sd_jbsize; /* Size of a journaled data block */ 600 u32 sd_hash_bsize; /* sizeof(exhash block) */ 601 u32 sd_hash_bsize_shift; 602 u32 sd_hash_ptrs; /* Number of pointers in a hash block */ 603 u32 sd_qc_per_block; 604 u32 sd_max_dirres; /* Max blocks needed to add a directory entry */ 605 u32 sd_max_height; /* Max height of a file's metadata tree */ 606 u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1]; 607 u32 sd_max_jheight; /* Max height of journaled file's meta tree */ 608 u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1]; 609 610 struct gfs2_args sd_args; /* Mount arguments */ 611 struct gfs2_tune sd_tune; /* Filesystem tuning structure */ 612 613 /* Lock Stuff */ 614 615 struct lm_lockstruct sd_lockstruct; 616 struct gfs2_holder sd_live_gh; 617 struct gfs2_glock *sd_rename_gl; 618 struct gfs2_glock *sd_trans_gl; 619 wait_queue_head_t sd_glock_wait; 620 atomic_t sd_glock_disposal; 621 struct completion sd_locking_init; 622 struct delayed_work sd_control_work; 623 624 /* Inode Stuff */ 625 626 struct dentry *sd_master_dir; 627 struct dentry *sd_root_dir; 628 629 struct inode *sd_jindex; 630 struct inode *sd_statfs_inode; 631 struct inode *sd_sc_inode; 632 struct inode *sd_qc_inode; 633 struct inode *sd_rindex; 634 struct inode *sd_quota_inode; 635 636 /* StatFS stuff */ 637 638 spinlock_t sd_statfs_spin; 639 struct gfs2_statfs_change_host sd_statfs_master; 640 struct gfs2_statfs_change_host sd_statfs_local; 641 int sd_statfs_force_sync; 642 643 /* Resource group stuff */ 644 645 int sd_rindex_uptodate; 646 spinlock_t sd_rindex_spin; 647 struct rb_root sd_rindex_tree; 648 unsigned int sd_rgrps; 649 unsigned int sd_max_rg_data; 650 651 /* Journal index stuff */ 652 653 struct list_head sd_jindex_list; 654 spinlock_t sd_jindex_spin; 655 struct mutex sd_jindex_mutex; 656 unsigned int sd_journals; 657 658 struct gfs2_jdesc *sd_jdesc; 659 struct gfs2_holder sd_journal_gh; 660 struct gfs2_holder sd_jinode_gh; 661 662 struct gfs2_holder sd_sc_gh; 663 struct gfs2_holder sd_qc_gh; 664 665 /* Daemon stuff */ 666 667 struct task_struct *sd_logd_process; 668 struct task_struct *sd_quotad_process; 669 670 /* Quota stuff */ 671 672 struct list_head sd_quota_list; 673 atomic_t sd_quota_count; 674 struct mutex sd_quota_mutex; 675 wait_queue_head_t sd_quota_wait; 676 struct list_head sd_trunc_list; 677 spinlock_t sd_trunc_lock; 678 679 unsigned int sd_quota_slots; 680 unsigned int sd_quota_chunks; 681 unsigned char **sd_quota_bitmap; 682 683 u64 sd_quota_sync_gen; 684 685 /* Log stuff */ 686 687 spinlock_t sd_log_lock; 688 689 unsigned int sd_log_blks_reserved; 690 unsigned int sd_log_commited_buf; 691 unsigned int sd_log_commited_databuf; 692 int sd_log_commited_revoke; 693 694 atomic_t sd_log_pinned; 695 unsigned int sd_log_num_buf; 696 unsigned int sd_log_num_revoke; 697 unsigned int sd_log_num_rg; 698 unsigned int sd_log_num_databuf; 699 700 struct list_head sd_log_le_buf; 701 struct list_head sd_log_le_revoke; 702 struct list_head sd_log_le_rg; 703 struct list_head sd_log_le_databuf; 704 struct list_head sd_log_le_ordered; 705 706 atomic_t sd_log_thresh1; 707 atomic_t sd_log_thresh2; 708 atomic_t sd_log_blks_free; 709 wait_queue_head_t sd_log_waitq; 710 wait_queue_head_t sd_logd_waitq; 711 712 u64 sd_log_sequence; 713 unsigned int sd_log_head; 714 unsigned int sd_log_tail; 715 int sd_log_idle; 716 717 struct rw_semaphore sd_log_flush_lock; 718 atomic_t sd_log_in_flight; 719 wait_queue_head_t sd_log_flush_wait; 720 721 unsigned int sd_log_flush_head; 722 u64 sd_log_flush_wrapped; 723 724 spinlock_t sd_ail_lock; 725 struct list_head sd_ail1_list; 726 struct list_head sd_ail2_list; 727 728 /* Replay stuff */ 729 730 struct list_head sd_revoke_list; 731 unsigned int sd_replay_tail; 732 733 unsigned int sd_found_blocks; 734 unsigned int sd_found_revokes; 735 unsigned int sd_replayed_blocks; 736 737 /* For quiescing the filesystem */ 738 739 struct gfs2_holder sd_freeze_gh; 740 struct mutex sd_freeze_lock; 741 unsigned int sd_freeze_count; 742 743 char sd_fsname[GFS2_FSNAME_LEN]; 744 char sd_table_name[GFS2_FSNAME_LEN]; 745 char sd_proto_name[GFS2_FSNAME_LEN]; 746 747 /* Debugging crud */ 748 749 unsigned long sd_last_warning; 750 struct dentry *debugfs_dir; /* debugfs directory */ 751 struct dentry *debugfs_dentry_glocks; 752 struct dentry *debugfs_dentry_glstats; 753 struct dentry *debugfs_dentry_sbstats; 754 }; 755 756 static inline void gfs2_glstats_inc(struct gfs2_glock *gl, int which) 757 { 758 gl->gl_stats.stats[which]++; 759 } 760 761 static inline void gfs2_sbstats_inc(const struct gfs2_glock *gl, int which) 762 { 763 const struct gfs2_sbd *sdp = gl->gl_sbd; 764 preempt_disable(); 765 this_cpu_ptr(sdp->sd_lkstats)->lkstats[gl->gl_name.ln_type].stats[which]++; 766 preempt_enable(); 767 } 768 769 #endif /* __INCORE_DOT_H__ */ 770 771