2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2008 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 version 2.
10 #ifndef __INCORE_DOT_H__
11 #define __INCORE_DOT_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 #include <linux/lockref.h>
26 #define DIO_WAIT 0x00000010
27 #define DIO_METADATA 0x00000020
29 struct gfs2_log_operations
;
33 struct gfs2_quota_data
;
39 typedef void (*gfs2_glop_bh_t
) (struct gfs2_glock
*gl
, unsigned int ret
);
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 */
50 * Structure of operations that are associated with each
51 * type of element in the log.
54 struct gfs2_log_operations
{
55 void (*lo_before_commit
) (struct gfs2_sbd
*sdp
);
56 void (*lo_after_commit
) (struct gfs2_sbd
*sdp
, struct gfs2_trans
*tr
);
57 void (*lo_before_scan
) (struct gfs2_jdesc
*jd
,
58 struct gfs2_log_header_host
*head
, int pass
);
59 int (*lo_scan_elements
) (struct gfs2_jdesc
*jd
, unsigned int start
,
60 struct gfs2_log_descriptor
*ld
, __be64
*ptr
,
62 void (*lo_after_scan
) (struct gfs2_jdesc
*jd
, int error
, int pass
);
69 struct buffer_head
*bi_bh
;
71 unsigned long bi_flags
;
79 struct rb_node rd_node
; /* Link with superblock */
80 struct gfs2_glock
*rd_gl
; /* Glock for this rgrp */
81 u64 rd_addr
; /* grp block disk address */
82 u64 rd_data0
; /* first data location */
83 u32 rd_length
; /* length of rgrp header in fs blocks */
84 u32 rd_data
; /* num of data blocks in rgrp */
85 u32 rd_bitbytes
; /* number of bytes in data bitmaps */
87 u32 rd_reserved
; /* number of blocks reserved */
91 struct gfs2_bitmap
*rd_bits
;
92 struct gfs2_sbd
*rd_sbd
;
93 struct gfs2_rgrp_lvb
*rd_rgl
;
96 #define GFS2_RDF_CHECK 0x10000000 /* check for unlinked inodes */
97 #define GFS2_RDF_UPTODATE 0x20000000 /* rg is up to date */
98 #define GFS2_RDF_ERROR 0x40000000 /* error in rg */
99 #define GFS2_RDF_MASK 0xf0000000 /* mask for internal flags */
100 spinlock_t rd_rsspin
; /* protects reservation related vars */
101 struct rb_root rd_rstree
; /* multi-block reservation tree */
105 struct gfs2_rgrpd
*rgd
;
106 u32 offset
; /* The offset is bitmap relative */
107 int bii
; /* Bitmap index */
110 static inline struct gfs2_bitmap
*rbm_bi(const struct gfs2_rbm
*rbm
)
112 return rbm
->rgd
->rd_bits
+ rbm
->bii
;
115 static inline u64
gfs2_rbm_to_block(const struct gfs2_rbm
*rbm
)
117 return rbm
->rgd
->rd_data0
+ (rbm_bi(rbm
)->bi_start
* GFS2_NBBY
) +
121 static inline bool gfs2_rbm_eq(const struct gfs2_rbm
*rbm1
,
122 const struct gfs2_rbm
*rbm2
)
124 return (rbm1
->rgd
== rbm2
->rgd
) && (rbm1
->bii
== rbm2
->bii
) &&
125 (rbm1
->offset
== rbm2
->offset
);
128 enum gfs2_state_bits
{
129 BH_Pinned
= BH_PrivateStart
,
130 BH_Escaped
= BH_PrivateStart
+ 1,
131 BH_Zeronew
= BH_PrivateStart
+ 2,
134 BUFFER_FNS(Pinned
, pinned
)
135 TAS_BUFFER_FNS(Pinned
, pinned
)
136 BUFFER_FNS(Escaped
, escaped
)
137 TAS_BUFFER_FNS(Escaped
, escaped
)
138 BUFFER_FNS(Zeronew
, zeronew
)
139 TAS_BUFFER_FNS(Zeronew
, zeronew
)
141 struct gfs2_bufdata
{
142 struct buffer_head
*bd_bh
;
143 struct gfs2_glock
*bd_gl
;
146 struct list_head bd_list
;
147 const struct gfs2_log_operations
*bd_ops
;
149 struct gfs2_trans
*bd_tr
;
150 struct list_head bd_ail_st_list
;
151 struct list_head bd_ail_gl_list
;
155 * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a
156 * prefix of lock_dlm_ gets awkward.
159 #define GDLM_STRNAME_BYTES 25
160 #define GDLM_LVB_SIZE 32
165 * DFL_BLOCK_LOCKS: dlm is in recovery and will grant locks that had been
166 * held by failed nodes whose journals need recovery. Those locks should
167 * only be used for journal recovery until the journal recovery is done.
168 * This is set by the dlm recover_prep callback and cleared by the
169 * gfs2_control thread when journal recovery is complete. To avoid
170 * races between recover_prep setting and gfs2_control clearing, recover_spin
171 * is held while changing this bit and reading/writing recover_block
174 * DFL_NO_DLM_OPS: dlm lockspace ops/callbacks are not being used.
176 * DFL_FIRST_MOUNT: this node is the first to mount this fs and is doing
177 * recovery of all journals before allowing other nodes to mount the fs.
178 * This is cleared when FIRST_MOUNT_DONE is set.
180 * DFL_FIRST_MOUNT_DONE: this node was the first mounter, and has finished
181 * recovery of all journals, and now allows other nodes to mount the fs.
183 * DFL_MOUNT_DONE: gdlm_mount has completed successfully and cleared
184 * BLOCK_LOCKS for the first time. The gfs2_control thread should now
185 * control clearing BLOCK_LOCKS for further recoveries.
187 * DFL_UNMOUNT: gdlm_unmount sets to keep sdp off gfs2_control_wq.
189 * DFL_DLM_RECOVERY: set while dlm is in recovery, between recover_prep()
190 * and recover_done(), i.e. set while recover_block == recover_start.
197 DFL_FIRST_MOUNT_DONE
= 3,
200 DFL_DLM_RECOVERY
= 6,
205 unsigned int ln_type
;
208 #define lm_name_equal(name1, name2) \
209 (((name1)->ln_number == (name2)->ln_number) && \
210 ((name1)->ln_type == (name2)->ln_type))
213 struct gfs2_glock_operations
{
214 void (*go_sync
) (struct gfs2_glock
*gl
);
215 int (*go_xmote_bh
) (struct gfs2_glock
*gl
, struct gfs2_holder
*gh
);
216 void (*go_inval
) (struct gfs2_glock
*gl
, int flags
);
217 int (*go_demote_ok
) (const struct gfs2_glock
*gl
);
218 int (*go_lock
) (struct gfs2_holder
*gh
);
219 void (*go_unlock
) (struct gfs2_holder
*gh
);
220 int (*go_dump
)(struct seq_file
*seq
, const struct gfs2_glock
*gl
);
221 void (*go_callback
)(struct gfs2_glock
*gl
, bool remote
);
223 const unsigned long go_flags
;
224 #define GLOF_ASPACE 1
229 GFS2_LKS_SRTT
= 0, /* Non blocking smoothed round trip time */
230 GFS2_LKS_SRTTVAR
= 1, /* Non blocking smoothed variance */
231 GFS2_LKS_SRTTB
= 2, /* Blocking smoothed round trip time */
232 GFS2_LKS_SRTTVARB
= 3, /* Blocking smoothed variance */
233 GFS2_LKS_SIRT
= 4, /* Smoothed Inter-request time */
234 GFS2_LKS_SIRTVAR
= 5, /* Smoothed Inter-request variance */
235 GFS2_LKS_DCOUNT
= 6, /* Count of dlm requests */
236 GFS2_LKS_QCOUNT
= 7, /* Count of gfs2_holder queues */
240 struct gfs2_lkstats
{
241 s64 stats
[GFS2_NR_LKSTATS
];
246 HIF_HOLDER
= 6, /* Set for gh that "holds" the glock */
252 struct list_head gh_list
;
254 struct gfs2_glock
*gh_gl
;
255 struct pid
*gh_owner_pid
;
256 unsigned int gh_state
;
260 unsigned long gh_iflags
; /* HIF_... */
264 /* Resource group multi-block reservation, in order of appearance:
266 Step 1. Function prepares to write, allocates a mb, sets the size hint.
267 Step 2. User calls inplace_reserve to target an rgrp, sets the rgrp info
268 Step 3. Function get_local_rgrp locks the rgrp, determines which bits to use
269 Step 4. Bits are assigned from the rgrp based on either the reservation
273 struct gfs2_blkreserv
{
274 /* components used during write (step 1): */
275 atomic_t rs_sizehint
; /* hint of the write size */
277 struct gfs2_holder rs_rgd_gh
; /* Filled in by get_local_rgrp */
278 struct rb_node rs_node
; /* link to other block reservations */
279 struct gfs2_rbm rs_rbm
; /* Start of reservation */
280 u32 rs_free
; /* how many blocks are still free */
281 u64 rs_inum
; /* Inode number for reservation */
283 /* ancillary quota stuff */
284 struct gfs2_quota_data
*rs_qa_qd
[2 * MAXQUOTAS
];
285 struct gfs2_holder rs_qa_qd_ghs
[2 * MAXQUOTAS
];
286 unsigned int rs_qa_qd_num
;
290 * Allocation parameters
291 * @target: The number of blocks we'd ideally like to allocate
292 * @aflags: The flags (e.g. Orlov flag)
294 * The intent is to gradually expand this structure over time in
295 * order to give more information, e.g. alignment, min extent size
296 * to the allocation code.
298 struct gfs2_alloc_parms
{
306 GLF_PENDING_DEMOTE
= 4,
307 GLF_DEMOTE_IN_PROGRESS
= 5,
310 GLF_INVALIDATE_IN_PROGRESS
= 8,
311 GLF_REPLY_PENDING
= 9,
316 GLF_OBJECT
= 14, /* Used only for tracing */
321 struct hlist_bl_node gl_list
;
322 struct gfs2_sbd
*gl_sbd
;
323 unsigned long gl_flags
; /* GLF_... */
324 struct lm_lockname gl_name
;
326 struct lockref gl_lockref
;
327 #define gl_spin gl_lockref.lock
329 /* State fields protected by gl_spin */
330 unsigned int gl_state
:2, /* Current state */
331 gl_target
:2, /* Target state */
332 gl_demote_state
:2, /* State requested by remote node */
333 gl_req
:2, /* State in last dlm request */
334 gl_reply
:8; /* Last reply from the dlm */
336 unsigned int gl_hash
;
337 unsigned long gl_demote_time
; /* time of first demote request */
339 struct list_head gl_holders
;
341 const struct gfs2_glock_operations
*gl_ops
;
343 struct gfs2_lkstats gl_stats
;
344 struct dlm_lksb gl_lksb
;
345 unsigned long gl_tchange
;
348 struct list_head gl_lru
;
349 struct list_head gl_ail_list
;
350 atomic_t gl_ail_count
;
352 struct delayed_work gl_work
;
353 struct work_struct gl_delete
;
354 struct rcu_head gl_rcu
;
357 #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */
362 GIF_ALLOC_FAILED
= 2,
368 struct inode i_inode
;
373 unsigned long i_flags
; /* GIF_... */
374 struct gfs2_glock
*i_gl
; /* Move into i_gh? */
375 struct gfs2_holder i_iopen_gh
;
376 struct gfs2_holder i_gh
; /* for prepare/commit_write only */
377 struct gfs2_blkreserv
*i_res
; /* rgrp multi-block reservation */
378 struct gfs2_rgrpd
*i_rgd
;
379 u64 i_goal
; /* goal block for allocations */
380 struct rw_semaphore i_rw_mutex
;
381 struct list_head i_ordered
;
382 struct list_head i_trunc_list
;
383 __be64
*i_hash_cache
;
391 * Since i_inode is the first element of struct gfs2_inode,
392 * this is effectively a cast.
394 static inline struct gfs2_inode
*GFS2_I(struct inode
*inode
)
396 return container_of(inode
, struct gfs2_inode
, i_inode
);
399 static inline struct gfs2_sbd
*GFS2_SB(const struct inode
*inode
)
401 return inode
->i_sb
->s_fs_info
;
405 struct mutex f_fl_mutex
;
406 struct gfs2_holder f_fl_gh
;
409 struct gfs2_revoke_replay
{
410 struct list_head rr_list
;
412 unsigned int rr_where
;
421 struct gfs2_quota_data
{
422 struct list_head qd_list
;
424 struct lockref qd_lockref
;
425 struct list_head qd_lru
;
427 unsigned long qd_flags
; /* QDF_... */
432 unsigned int qd_slot
;
433 unsigned int qd_slot_count
;
435 struct buffer_head
*qd_bh
;
436 struct gfs2_quota_change
*qd_bh_qc
;
437 unsigned int qd_bh_count
;
439 struct gfs2_glock
*qd_gl
;
440 struct gfs2_quota_lvb qd_qb
;
443 unsigned long qd_last_warn
;
449 unsigned int tr_blocks
;
450 unsigned int tr_revokes
;
451 unsigned int tr_reserved
;
453 struct gfs2_holder tr_t_gh
;
458 unsigned int tr_num_buf_new
;
459 unsigned int tr_num_databuf_new
;
460 unsigned int tr_num_buf_rm
;
461 unsigned int tr_num_databuf_rm
;
462 unsigned int tr_num_revoke
;
463 unsigned int tr_num_revoke_rm
;
465 struct list_head tr_list
;
467 unsigned int tr_first
;
468 struct list_head tr_ail1_list
;
469 struct list_head tr_ail2_list
;
472 struct gfs2_journal_extent
{
473 struct list_head extent_list
;
475 unsigned int lblock
; /* First logical block */
476 u64 dblock
; /* First disk block */
481 struct list_head jd_list
;
482 struct list_head extent_list
;
483 struct work_struct jd_work
;
484 struct inode
*jd_inode
;
485 unsigned long jd_flags
;
486 #define JDF_RECOVERY 1
488 unsigned int jd_blocks
;
489 int jd_recover_error
;
492 struct gfs2_statfs_change_host
{
498 #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF
499 #define GFS2_QUOTA_OFF 0
500 #define GFS2_QUOTA_ACCOUNT 1
501 #define GFS2_QUOTA_ON 2
503 #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED
504 #define GFS2_DATA_WRITEBACK 1
505 #define GFS2_DATA_ORDERED 2
507 #define GFS2_ERRORS_DEFAULT GFS2_ERRORS_WITHDRAW
508 #define GFS2_ERRORS_WITHDRAW 0
509 #define GFS2_ERRORS_CONTINUE 1 /* place holder for future feature */
510 #define GFS2_ERRORS_RO 2 /* place holder for future feature */
511 #define GFS2_ERRORS_PANIC 3
514 char ar_lockproto
[GFS2_LOCKNAME_LEN
]; /* Name of the Lock Protocol */
515 char ar_locktable
[GFS2_LOCKNAME_LEN
]; /* Name of the Lock Table */
516 char ar_hostdata
[GFS2_LOCKNAME_LEN
]; /* Host specific data */
517 unsigned int ar_spectator
:1; /* Don't get a journal */
518 unsigned int ar_localflocks
:1; /* Let the VFS do flock|fcntl */
519 unsigned int ar_debug
:1; /* Oops on errors */
520 unsigned int ar_posix_acl
:1; /* Enable posix acls */
521 unsigned int ar_quota
:2; /* off/account/on */
522 unsigned int ar_suiddir
:1; /* suiddir support */
523 unsigned int ar_data
:2; /* ordered/writeback */
524 unsigned int ar_meta
:1; /* mount metafs */
525 unsigned int ar_discard
:1; /* discard requests */
526 unsigned int ar_errors
:2; /* errors=withdraw | panic */
527 unsigned int ar_nobarrier
:1; /* do not send barriers */
528 unsigned int ar_rgrplvb
:1; /* use lvbs for rgrp info */
529 int ar_commit
; /* Commit interval */
530 int ar_statfs_quantum
; /* The fast statfs interval */
531 int ar_quota_quantum
; /* The quota interval */
532 int ar_statfs_percent
; /* The % change to force sync */
538 unsigned int gt_logd_secs
;
540 unsigned int gt_quota_warn_period
; /* Secs between quota warn msgs */
541 unsigned int gt_quota_scale_num
; /* Numerator */
542 unsigned int gt_quota_scale_den
; /* Denominator */
543 unsigned int gt_quota_quantum
; /* Secs between syncs to quota file */
544 unsigned int gt_new_files_jdata
;
545 unsigned int gt_max_readahead
; /* Max bytes to read-ahead from disk */
546 unsigned int gt_complain_secs
;
547 unsigned int gt_statfs_quantum
;
548 unsigned int gt_statfs_slow
;
552 SDF_JOURNAL_CHECKED
= 0,
553 SDF_JOURNAL_LIVE
= 1,
559 SDF_RORECOVERY
= 7, /* read only recovery */
560 SDF_SKIP_DLM_UNLOCK
= 8,
563 #define GFS2_FSNAME_LEN 256
565 struct gfs2_inum_host
{
570 struct gfs2_sb_host
{
576 u32 sb_multihost_format
;
580 struct gfs2_inum_host sb_master_dir
;
581 struct gfs2_inum_host sb_root_dir
;
583 char sb_lockproto
[GFS2_LOCKNAME_LEN
];
584 char sb_locktable
[GFS2_LOCKNAME_LEN
];
588 * lm_mount() return values
590 * ls_jid - the journal ID this node should use
591 * ls_first - this node is the first to mount the file system
592 * ls_lockspace - lock module's context for this file system
593 * ls_ops - lock module's functions
596 struct lm_lockstruct
{
598 unsigned int ls_first
;
599 const struct lm_lockops
*ls_ops
;
600 dlm_lockspace_t
*ls_dlm
;
602 int ls_recover_jid_done
; /* These two are deprecated, */
603 int ls_recover_jid_status
; /* used previously by gfs_controld */
605 struct dlm_lksb ls_mounted_lksb
; /* mounted_lock */
606 struct dlm_lksb ls_control_lksb
; /* control_lock */
607 char ls_control_lvb
[GDLM_LVB_SIZE
]; /* control_lock lvb */
608 struct completion ls_sync_wait
; /* {control,mounted}_{lock,unlock} */
611 spinlock_t ls_recover_spin
; /* protects following fields */
612 unsigned long ls_recover_flags
; /* DFL_ */
613 uint32_t ls_recover_mount
; /* gen in first recover_done cb */
614 uint32_t ls_recover_start
; /* gen in last recover_done cb */
615 uint32_t ls_recover_block
; /* copy recover_start in last recover_prep */
616 uint32_t ls_recover_size
; /* size of recover_submit, recover_result */
617 uint32_t *ls_recover_submit
; /* gen in last recover_slot cb per jid */
618 uint32_t *ls_recover_result
; /* result of last jid recovery */
621 struct gfs2_pcpu_lkstats
{
622 /* One struct for each glock type */
623 struct gfs2_lkstats lkstats
[10];
627 struct super_block
*sd_vfs
;
628 struct gfs2_pcpu_lkstats __percpu
*sd_lkstats
;
629 struct kobject sd_kobj
;
630 unsigned long sd_flags
; /* SDF_... */
631 struct gfs2_sb_host sd_sb
;
633 /* Constants computed on mount */
637 u32 sd_diptrs
; /* Number of pointers in a dinode */
638 u32 sd_inptrs
; /* Number of pointers in a indirect block */
639 u32 sd_jbsize
; /* Size of a journaled data block */
640 u32 sd_hash_bsize
; /* sizeof(exhash block) */
641 u32 sd_hash_bsize_shift
;
642 u32 sd_hash_ptrs
; /* Number of pointers in a hash block */
644 u32 sd_blocks_per_bitmap
;
645 u32 sd_max_dirres
; /* Max blocks needed to add a directory entry */
646 u32 sd_max_height
; /* Max height of a file's metadata tree */
647 u64 sd_heightsize
[GFS2_MAX_META_HEIGHT
+ 1];
648 u32 sd_max_jheight
; /* Max height of journaled file's meta tree */
649 u64 sd_jheightsize
[GFS2_MAX_META_HEIGHT
+ 1];
651 struct gfs2_args sd_args
; /* Mount arguments */
652 struct gfs2_tune sd_tune
; /* Filesystem tuning structure */
656 struct lm_lockstruct sd_lockstruct
;
657 struct gfs2_holder sd_live_gh
;
658 struct gfs2_glock
*sd_rename_gl
;
659 struct gfs2_glock
*sd_trans_gl
;
660 wait_queue_head_t sd_glock_wait
;
661 atomic_t sd_glock_disposal
;
662 struct completion sd_locking_init
;
663 struct completion sd_wdack
;
664 struct delayed_work sd_control_work
;
668 struct dentry
*sd_master_dir
;
669 struct dentry
*sd_root_dir
;
671 struct inode
*sd_jindex
;
672 struct inode
*sd_statfs_inode
;
673 struct inode
*sd_sc_inode
;
674 struct inode
*sd_qc_inode
;
675 struct inode
*sd_rindex
;
676 struct inode
*sd_quota_inode
;
680 spinlock_t sd_statfs_spin
;
681 struct gfs2_statfs_change_host sd_statfs_master
;
682 struct gfs2_statfs_change_host sd_statfs_local
;
683 int sd_statfs_force_sync
;
685 /* Resource group stuff */
687 int sd_rindex_uptodate
;
688 spinlock_t sd_rindex_spin
;
689 struct rb_root sd_rindex_tree
;
690 unsigned int sd_rgrps
;
691 unsigned int sd_max_rg_data
;
693 /* Journal index stuff */
695 struct list_head sd_jindex_list
;
696 spinlock_t sd_jindex_spin
;
697 struct mutex sd_jindex_mutex
;
698 unsigned int sd_journals
;
700 struct gfs2_jdesc
*sd_jdesc
;
701 struct gfs2_holder sd_journal_gh
;
702 struct gfs2_holder sd_jinode_gh
;
704 struct gfs2_holder sd_sc_gh
;
705 struct gfs2_holder sd_qc_gh
;
709 struct task_struct
*sd_logd_process
;
710 struct task_struct
*sd_quotad_process
;
714 struct list_head sd_quota_list
;
715 atomic_t sd_quota_count
;
716 struct mutex sd_quota_mutex
;
717 struct mutex sd_quota_sync_mutex
;
718 wait_queue_head_t sd_quota_wait
;
719 struct list_head sd_trunc_list
;
720 spinlock_t sd_trunc_lock
;
722 unsigned int sd_quota_slots
;
723 unsigned int sd_quota_chunks
;
724 unsigned char **sd_quota_bitmap
;
726 u64 sd_quota_sync_gen
;
730 spinlock_t sd_log_lock
;
732 struct gfs2_trans
*sd_log_tr
;
733 unsigned int sd_log_blks_reserved
;
734 unsigned int sd_log_commited_buf
;
735 unsigned int sd_log_commited_databuf
;
736 int sd_log_commited_revoke
;
738 atomic_t sd_log_pinned
;
739 unsigned int sd_log_num_buf
;
740 unsigned int sd_log_num_revoke
;
741 unsigned int sd_log_num_rg
;
742 unsigned int sd_log_num_databuf
;
744 struct list_head sd_log_le_buf
;
745 struct list_head sd_log_le_revoke
;
746 struct list_head sd_log_le_databuf
;
747 struct list_head sd_log_le_ordered
;
748 spinlock_t sd_ordered_lock
;
750 atomic_t sd_log_thresh1
;
751 atomic_t sd_log_thresh2
;
752 atomic_t sd_log_blks_free
;
753 wait_queue_head_t sd_log_waitq
;
754 wait_queue_head_t sd_logd_waitq
;
757 unsigned int sd_log_head
;
758 unsigned int sd_log_tail
;
761 struct rw_semaphore sd_log_flush_lock
;
762 atomic_t sd_log_in_flight
;
763 struct bio
*sd_log_bio
;
764 wait_queue_head_t sd_log_flush_wait
;
767 unsigned int sd_log_flush_head
;
768 u64 sd_log_flush_wrapped
;
770 spinlock_t sd_ail_lock
;
771 struct list_head sd_ail1_list
;
772 struct list_head sd_ail2_list
;
776 struct list_head sd_revoke_list
;
777 unsigned int sd_replay_tail
;
779 unsigned int sd_found_blocks
;
780 unsigned int sd_found_revokes
;
781 unsigned int sd_replayed_blocks
;
783 /* For quiescing the filesystem */
784 struct gfs2_holder sd_freeze_gh
;
786 char sd_fsname
[GFS2_FSNAME_LEN
];
787 char sd_table_name
[GFS2_FSNAME_LEN
];
788 char sd_proto_name
[GFS2_FSNAME_LEN
];
792 unsigned long sd_last_warning
;
793 struct dentry
*debugfs_dir
; /* debugfs directory */
794 struct dentry
*debugfs_dentry_glocks
;
795 struct dentry
*debugfs_dentry_glstats
;
796 struct dentry
*debugfs_dentry_sbstats
;
799 static inline void gfs2_glstats_inc(struct gfs2_glock
*gl
, int which
)
801 gl
->gl_stats
.stats
[which
]++;
804 static inline void gfs2_sbstats_inc(const struct gfs2_glock
*gl
, int which
)
806 const struct gfs2_sbd
*sdp
= gl
->gl_sbd
;
808 this_cpu_ptr(sdp
->sd_lkstats
)->lkstats
[gl
->gl_name
.ln_type
].stats
[which
]++;
812 #endif /* __INCORE_DOT_H__ */