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>
25 #include <linux/rhashtable.h>
27 #define DIO_WAIT 0x00000010
28 #define DIO_METADATA 0x00000020
30 struct gfs2_log_operations
;
34 struct gfs2_quota_data
;
40 typedef void (*gfs2_glop_bh_t
) (struct gfs2_glock
*gl
, unsigned int ret
);
42 struct gfs2_log_header_host
{
43 u64 lh_sequence
; /* Sequence number of this transaction */
44 u32 lh_flags
; /* GFS2_LOG_HEAD_... */
45 u32 lh_tail
; /* Block number of log tail */
51 * Structure of operations that are associated with each
52 * type of element in the log.
55 struct gfs2_log_operations
{
56 void (*lo_before_commit
) (struct gfs2_sbd
*sdp
, struct gfs2_trans
*tr
);
57 void (*lo_after_commit
) (struct gfs2_sbd
*sdp
, struct gfs2_trans
*tr
);
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
,
63 void (*lo_after_scan
) (struct gfs2_jdesc
*jd
, int error
, int pass
);
70 struct buffer_head
*bi_bh
;
72 unsigned long bi_flags
;
80 struct rb_node rd_node
; /* Link with superblock */
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 */
88 u32 rd_reserved
; /* number of blocks reserved */
92 struct gfs2_bitmap
*rd_bits
;
93 struct gfs2_sbd
*rd_sbd
;
94 struct gfs2_rgrp_lvb
*rd_rgl
;
97 u32 rd_extfail_pt
; /* extent failure point */
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_PREFERRED 0x80000000 /* This rgrp is preferred */
102 #define GFS2_RDF_MASK 0xf0000000 /* mask for internal flags */
103 spinlock_t rd_rsspin
; /* protects reservation related vars */
104 struct rb_root rd_rstree
; /* multi-block reservation tree */
108 struct gfs2_rgrpd
*rgd
;
109 u32 offset
; /* The offset is bitmap relative */
110 int bii
; /* Bitmap index */
113 static inline struct gfs2_bitmap
*rbm_bi(const struct gfs2_rbm
*rbm
)
115 return rbm
->rgd
->rd_bits
+ rbm
->bii
;
118 static inline u64
gfs2_rbm_to_block(const struct gfs2_rbm
*rbm
)
120 return rbm
->rgd
->rd_data0
+ (rbm_bi(rbm
)->bi_start
* GFS2_NBBY
) +
124 static inline bool gfs2_rbm_eq(const struct gfs2_rbm
*rbm1
,
125 const struct gfs2_rbm
*rbm2
)
127 return (rbm1
->rgd
== rbm2
->rgd
) && (rbm1
->bii
== rbm2
->bii
) &&
128 (rbm1
->offset
== rbm2
->offset
);
131 enum gfs2_state_bits
{
132 BH_Pinned
= BH_PrivateStart
,
133 BH_Escaped
= BH_PrivateStart
+ 1,
134 BH_Zeronew
= BH_PrivateStart
+ 2,
137 BUFFER_FNS(Pinned
, pinned
)
138 TAS_BUFFER_FNS(Pinned
, pinned
)
139 BUFFER_FNS(Escaped
, escaped
)
140 TAS_BUFFER_FNS(Escaped
, escaped
)
141 BUFFER_FNS(Zeronew
, zeronew
)
142 TAS_BUFFER_FNS(Zeronew
, zeronew
)
144 struct gfs2_bufdata
{
145 struct buffer_head
*bd_bh
;
146 struct gfs2_glock
*bd_gl
;
149 struct list_head bd_list
;
150 const struct gfs2_log_operations
*bd_ops
;
152 struct gfs2_trans
*bd_tr
;
153 struct list_head bd_ail_st_list
;
154 struct list_head bd_ail_gl_list
;
158 * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a
159 * prefix of lock_dlm_ gets awkward.
162 #define GDLM_STRNAME_BYTES 25
163 #define GDLM_LVB_SIZE 32
168 * DFL_BLOCK_LOCKS: dlm is in recovery and will grant locks that had been
169 * held by failed nodes whose journals need recovery. Those locks should
170 * only be used for journal recovery until the journal recovery is done.
171 * This is set by the dlm recover_prep callback and cleared by the
172 * gfs2_control thread when journal recovery is complete. To avoid
173 * races between recover_prep setting and gfs2_control clearing, recover_spin
174 * is held while changing this bit and reading/writing recover_block
177 * DFL_NO_DLM_OPS: dlm lockspace ops/callbacks are not being used.
179 * DFL_FIRST_MOUNT: this node is the first to mount this fs and is doing
180 * recovery of all journals before allowing other nodes to mount the fs.
181 * This is cleared when FIRST_MOUNT_DONE is set.
183 * DFL_FIRST_MOUNT_DONE: this node was the first mounter, and has finished
184 * recovery of all journals, and now allows other nodes to mount the fs.
186 * DFL_MOUNT_DONE: gdlm_mount has completed successfully and cleared
187 * BLOCK_LOCKS for the first time. The gfs2_control thread should now
188 * control clearing BLOCK_LOCKS for further recoveries.
190 * DFL_UNMOUNT: gdlm_unmount sets to keep sdp off gfs2_control_wq.
192 * DFL_DLM_RECOVERY: set while dlm is in recovery, between recover_prep()
193 * and recover_done(), i.e. set while recover_block == recover_start.
200 DFL_FIRST_MOUNT_DONE
= 3,
203 DFL_DLM_RECOVERY
= 6,
207 struct gfs2_sbd
*ln_sbd
;
209 unsigned int ln_type
;
210 } __packed
__aligned(sizeof(int));
212 #define lm_name_equal(name1, name2) \
213 (((name1)->ln_number == (name2)->ln_number) && \
214 ((name1)->ln_type == (name2)->ln_type) && \
215 ((name1)->ln_sbd == (name2)->ln_sbd))
218 struct gfs2_glock_operations
{
219 void (*go_sync
) (struct gfs2_glock
*gl
);
220 int (*go_xmote_bh
) (struct gfs2_glock
*gl
, struct gfs2_holder
*gh
);
221 void (*go_inval
) (struct gfs2_glock
*gl
, int flags
);
222 int (*go_demote_ok
) (const struct gfs2_glock
*gl
);
223 int (*go_lock
) (struct gfs2_holder
*gh
);
224 void (*go_unlock
) (struct gfs2_holder
*gh
);
225 void (*go_dump
)(struct seq_file
*seq
, const struct gfs2_glock
*gl
);
226 void (*go_callback
)(struct gfs2_glock
*gl
, bool remote
);
228 const unsigned long go_flags
;
229 #define GLOF_ASPACE 1
235 GFS2_LKS_SRTT
= 0, /* Non blocking smoothed round trip time */
236 GFS2_LKS_SRTTVAR
= 1, /* Non blocking smoothed variance */
237 GFS2_LKS_SRTTB
= 2, /* Blocking smoothed round trip time */
238 GFS2_LKS_SRTTVARB
= 3, /* Blocking smoothed variance */
239 GFS2_LKS_SIRT
= 4, /* Smoothed Inter-request time */
240 GFS2_LKS_SIRTVAR
= 5, /* Smoothed Inter-request variance */
241 GFS2_LKS_DCOUNT
= 6, /* Count of dlm requests */
242 GFS2_LKS_QCOUNT
= 7, /* Count of gfs2_holder queues */
246 struct gfs2_lkstats
{
247 u64 stats
[GFS2_NR_LKSTATS
];
252 HIF_HOLDER
= 6, /* Set for gh that "holds" the glock */
258 struct list_head gh_list
;
260 struct gfs2_glock
*gh_gl
;
261 struct pid
*gh_owner_pid
;
266 unsigned long gh_iflags
; /* HIF_... */
270 /* Number of quota types we support */
271 #define GFS2_MAXQUOTAS 2
273 struct gfs2_qadata
{ /* quota allocation data */
275 struct gfs2_quota_data
*qa_qd
[2 * GFS2_MAXQUOTAS
];
276 struct gfs2_holder qa_qd_ghs
[2 * GFS2_MAXQUOTAS
];
277 unsigned int qa_qd_num
;
280 /* Resource group multi-block reservation, in order of appearance:
282 Step 1. Function prepares to write, allocates a mb, sets the size hint.
283 Step 2. User calls inplace_reserve to target an rgrp, sets the rgrp info
284 Step 3. Function get_local_rgrp locks the rgrp, determines which bits to use
285 Step 4. Bits are assigned from the rgrp based on either the reservation
289 struct gfs2_blkreserv
{
290 /* components used during write (step 1): */
291 atomic_t rs_sizehint
; /* hint of the write size */
293 struct gfs2_holder rs_rgd_gh
; /* Filled in by get_local_rgrp */
294 struct rb_node rs_node
; /* link to other block reservations */
295 struct gfs2_rbm rs_rbm
; /* Start of reservation */
296 u32 rs_free
; /* how many blocks are still free */
297 u64 rs_inum
; /* Inode number for reservation */
301 * Allocation parameters
302 * @target: The number of blocks we'd ideally like to allocate
303 * @aflags: The flags (e.g. Orlov flag)
305 * The intent is to gradually expand this structure over time in
306 * order to give more information, e.g. alignment, min extent size
307 * to the allocation code.
309 struct gfs2_alloc_parms
{
319 GLF_PENDING_DEMOTE
= 4,
320 GLF_DEMOTE_IN_PROGRESS
= 5,
323 GLF_INVALIDATE_IN_PROGRESS
= 8,
324 GLF_REPLY_PENDING
= 9,
329 GLF_OBJECT
= 14, /* Used only for tracing */
331 GLF_INODE_CREATING
= 16, /* Inode creation occurring */
335 struct hlist_bl_node gl_list
;
336 unsigned long gl_flags
; /* GLF_... */
337 struct lm_lockname gl_name
;
339 struct lockref gl_lockref
;
341 /* State fields protected by gl_lockref.lock */
342 unsigned int gl_state
:2, /* Current state */
343 gl_target
:2, /* Target state */
344 gl_demote_state
:2, /* State requested by remote node */
345 gl_req
:2, /* State in last dlm request */
346 gl_reply
:8; /* Last reply from the dlm */
348 unsigned long gl_demote_time
; /* time of first demote request */
350 struct list_head gl_holders
;
352 const struct gfs2_glock_operations
*gl_ops
;
354 struct gfs2_lkstats gl_stats
;
355 struct dlm_lksb gl_lksb
;
356 unsigned long gl_tchange
;
359 struct list_head gl_lru
;
360 struct list_head gl_ail_list
;
361 atomic_t gl_ail_count
;
363 struct delayed_work gl_work
;
365 /* For inode and iopen glocks only */
366 struct work_struct gl_delete
;
367 /* For rgrp glocks only */
373 struct rhash_head gl_node
;
376 #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */
381 GIF_ALLOC_FAILED
= 2,
384 GIF_FREE_VFS_INODE
= 5,
388 struct inode i_inode
;
393 unsigned long i_flags
; /* GIF_... */
394 struct gfs2_glock
*i_gl
; /* Move into i_gh? */
395 struct gfs2_holder i_iopen_gh
;
396 struct gfs2_holder i_gh
; /* for prepare/commit_write only */
397 struct gfs2_qadata
*i_qadata
; /* quota allocation data */
398 struct gfs2_blkreserv i_res
; /* rgrp multi-block reservation */
399 struct gfs2_rgrpd
*i_rgd
;
400 u64 i_goal
; /* goal block for allocations */
401 struct rw_semaphore i_rw_mutex
;
402 struct list_head i_ordered
;
403 struct list_head i_trunc_list
;
404 __be64
*i_hash_cache
;
413 * Since i_inode is the first element of struct gfs2_inode,
414 * this is effectively a cast.
416 static inline struct gfs2_inode
*GFS2_I(struct inode
*inode
)
418 return container_of(inode
, struct gfs2_inode
, i_inode
);
421 static inline struct gfs2_sbd
*GFS2_SB(const struct inode
*inode
)
423 return inode
->i_sb
->s_fs_info
;
427 struct mutex f_fl_mutex
;
428 struct gfs2_holder f_fl_gh
;
431 struct gfs2_revoke_replay
{
432 struct list_head rr_list
;
434 unsigned int rr_where
;
444 struct gfs2_quota_data
{
445 struct hlist_bl_node qd_hlist
;
446 struct list_head qd_list
;
448 struct gfs2_sbd
*qd_sbd
;
449 struct lockref qd_lockref
;
450 struct list_head qd_lru
;
453 unsigned long qd_flags
; /* QDF_... */
458 unsigned int qd_slot
;
459 unsigned int qd_slot_count
;
461 struct buffer_head
*qd_bh
;
462 struct gfs2_quota_change
*qd_bh_qc
;
463 unsigned int qd_bh_count
;
465 struct gfs2_glock
*qd_gl
;
466 struct gfs2_quota_lvb qd_qb
;
469 unsigned long qd_last_warn
;
470 struct rcu_head qd_rcu
;
482 unsigned int tr_blocks
;
483 unsigned int tr_revokes
;
484 unsigned int tr_reserved
;
485 unsigned long tr_flags
;
487 unsigned int tr_num_buf_new
;
488 unsigned int tr_num_databuf_new
;
489 unsigned int tr_num_buf_rm
;
490 unsigned int tr_num_databuf_rm
;
491 unsigned int tr_num_revoke
;
492 unsigned int tr_num_revoke_rm
;
494 struct list_head tr_list
;
495 struct list_head tr_databuf
;
496 struct list_head tr_buf
;
498 unsigned int tr_first
;
499 struct list_head tr_ail1_list
;
500 struct list_head tr_ail2_list
;
503 struct gfs2_journal_extent
{
504 struct list_head list
;
506 unsigned int lblock
; /* First logical block */
507 u64 dblock
; /* First disk block */
512 struct list_head jd_list
;
513 struct list_head extent_list
;
514 unsigned int nr_extents
;
515 struct work_struct jd_work
;
516 struct inode
*jd_inode
;
517 unsigned long jd_flags
;
518 #define JDF_RECOVERY 1
520 unsigned int jd_blocks
;
521 int jd_recover_error
;
524 unsigned int jd_found_blocks
;
525 unsigned int jd_found_revokes
;
526 unsigned int jd_replayed_blocks
;
528 struct list_head jd_revoke_list
;
529 unsigned int jd_replay_tail
;
533 struct gfs2_statfs_change_host
{
539 #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF
540 #define GFS2_QUOTA_OFF 0
541 #define GFS2_QUOTA_ACCOUNT 1
542 #define GFS2_QUOTA_ON 2
544 #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED
545 #define GFS2_DATA_WRITEBACK 1
546 #define GFS2_DATA_ORDERED 2
548 #define GFS2_ERRORS_DEFAULT GFS2_ERRORS_WITHDRAW
549 #define GFS2_ERRORS_WITHDRAW 0
550 #define GFS2_ERRORS_CONTINUE 1 /* place holder for future feature */
551 #define GFS2_ERRORS_RO 2 /* place holder for future feature */
552 #define GFS2_ERRORS_PANIC 3
555 char ar_lockproto
[GFS2_LOCKNAME_LEN
]; /* Name of the Lock Protocol */
556 char ar_locktable
[GFS2_LOCKNAME_LEN
]; /* Name of the Lock Table */
557 char ar_hostdata
[GFS2_LOCKNAME_LEN
]; /* Host specific data */
558 unsigned int ar_spectator
:1; /* Don't get a journal */
559 unsigned int ar_localflocks
:1; /* Let the VFS do flock|fcntl */
560 unsigned int ar_debug
:1; /* Oops on errors */
561 unsigned int ar_posix_acl
:1; /* Enable posix acls */
562 unsigned int ar_quota
:2; /* off/account/on */
563 unsigned int ar_suiddir
:1; /* suiddir support */
564 unsigned int ar_data
:2; /* ordered/writeback */
565 unsigned int ar_meta
:1; /* mount metafs */
566 unsigned int ar_discard
:1; /* discard requests */
567 unsigned int ar_errors
:2; /* errors=withdraw | panic */
568 unsigned int ar_nobarrier
:1; /* do not send barriers */
569 unsigned int ar_rgrplvb
:1; /* use lvbs for rgrp info */
570 unsigned int ar_loccookie
:1; /* use location based readdir
572 int ar_commit
; /* Commit interval */
573 int ar_statfs_quantum
; /* The fast statfs interval */
574 int ar_quota_quantum
; /* The quota interval */
575 int ar_statfs_percent
; /* The % change to force sync */
581 unsigned int gt_logd_secs
;
583 unsigned int gt_quota_warn_period
; /* Secs between quota warn msgs */
584 unsigned int gt_quota_scale_num
; /* Numerator */
585 unsigned int gt_quota_scale_den
; /* Denominator */
586 unsigned int gt_quota_quantum
; /* Secs between syncs to quota file */
587 unsigned int gt_new_files_jdata
;
588 unsigned int gt_max_readahead
; /* Max bytes to read-ahead from disk */
589 unsigned int gt_complain_secs
;
590 unsigned int gt_statfs_quantum
;
591 unsigned int gt_statfs_slow
;
595 SDF_JOURNAL_CHECKED
= 0,
596 SDF_JOURNAL_LIVE
= 1,
602 SDF_RORECOVERY
= 7, /* read only recovery */
603 SDF_SKIP_DLM_UNLOCK
= 8,
606 enum gfs2_freeze_state
{
608 SFS_STARTING_FREEZE
= 1,
612 #define GFS2_FSNAME_LEN 256
614 struct gfs2_inum_host
{
619 struct gfs2_sb_host
{
625 u32 sb_multihost_format
;
629 struct gfs2_inum_host sb_master_dir
;
630 struct gfs2_inum_host sb_root_dir
;
632 char sb_lockproto
[GFS2_LOCKNAME_LEN
];
633 char sb_locktable
[GFS2_LOCKNAME_LEN
];
637 * lm_mount() return values
639 * ls_jid - the journal ID this node should use
640 * ls_first - this node is the first to mount the file system
641 * ls_lockspace - lock module's context for this file system
642 * ls_ops - lock module's functions
645 struct lm_lockstruct
{
647 unsigned int ls_first
;
648 const struct lm_lockops
*ls_ops
;
649 dlm_lockspace_t
*ls_dlm
;
651 int ls_recover_jid_done
; /* These two are deprecated, */
652 int ls_recover_jid_status
; /* used previously by gfs_controld */
654 struct dlm_lksb ls_mounted_lksb
; /* mounted_lock */
655 struct dlm_lksb ls_control_lksb
; /* control_lock */
656 char ls_control_lvb
[GDLM_LVB_SIZE
]; /* control_lock lvb */
657 struct completion ls_sync_wait
; /* {control,mounted}_{lock,unlock} */
660 spinlock_t ls_recover_spin
; /* protects following fields */
661 unsigned long ls_recover_flags
; /* DFL_ */
662 uint32_t ls_recover_mount
; /* gen in first recover_done cb */
663 uint32_t ls_recover_start
; /* gen in last recover_done cb */
664 uint32_t ls_recover_block
; /* copy recover_start in last recover_prep */
665 uint32_t ls_recover_size
; /* size of recover_submit, recover_result */
666 uint32_t *ls_recover_submit
; /* gen in last recover_slot cb per jid */
667 uint32_t *ls_recover_result
; /* result of last jid recovery */
670 struct gfs2_pcpu_lkstats
{
671 /* One struct for each glock type */
672 struct gfs2_lkstats lkstats
[10];
676 struct super_block
*sd_vfs
;
677 struct gfs2_pcpu_lkstats __percpu
*sd_lkstats
;
678 struct kobject sd_kobj
;
679 unsigned long sd_flags
; /* SDF_... */
680 struct gfs2_sb_host sd_sb
;
682 /* Constants computed on mount */
686 u32 sd_diptrs
; /* Number of pointers in a dinode */
687 u32 sd_inptrs
; /* Number of pointers in a indirect block */
688 u32 sd_jbsize
; /* Size of a journaled data block */
689 u32 sd_hash_bsize
; /* sizeof(exhash block) */
690 u32 sd_hash_bsize_shift
;
691 u32 sd_hash_ptrs
; /* Number of pointers in a hash block */
693 u32 sd_blocks_per_bitmap
;
694 u32 sd_max_dirres
; /* Max blocks needed to add a directory entry */
695 u32 sd_max_height
; /* Max height of a file's metadata tree */
696 u64 sd_heightsize
[GFS2_MAX_META_HEIGHT
+ 1];
697 u32 sd_max_jheight
; /* Max height of journaled file's meta tree */
698 u64 sd_jheightsize
[GFS2_MAX_META_HEIGHT
+ 1];
699 u32 sd_max_dents_per_leaf
; /* Max number of dirents in a leaf block */
701 struct gfs2_args sd_args
; /* Mount arguments */
702 struct gfs2_tune sd_tune
; /* Filesystem tuning structure */
706 struct lm_lockstruct sd_lockstruct
;
707 struct gfs2_holder sd_live_gh
;
708 struct gfs2_glock
*sd_rename_gl
;
709 struct gfs2_glock
*sd_freeze_gl
;
710 struct work_struct sd_freeze_work
;
711 wait_queue_head_t sd_glock_wait
;
712 atomic_t sd_glock_disposal
;
713 struct completion sd_locking_init
;
714 struct completion sd_wdack
;
715 struct delayed_work sd_control_work
;
719 struct dentry
*sd_master_dir
;
720 struct dentry
*sd_root_dir
;
722 struct inode
*sd_jindex
;
723 struct inode
*sd_statfs_inode
;
724 struct inode
*sd_sc_inode
;
725 struct inode
*sd_qc_inode
;
726 struct inode
*sd_rindex
;
727 struct inode
*sd_quota_inode
;
731 spinlock_t sd_statfs_spin
;
732 struct gfs2_statfs_change_host sd_statfs_master
;
733 struct gfs2_statfs_change_host sd_statfs_local
;
734 int sd_statfs_force_sync
;
736 /* Resource group stuff */
738 int sd_rindex_uptodate
;
739 spinlock_t sd_rindex_spin
;
740 struct rb_root sd_rindex_tree
;
741 unsigned int sd_rgrps
;
742 unsigned int sd_max_rg_data
;
744 /* Journal index stuff */
746 struct list_head sd_jindex_list
;
747 spinlock_t sd_jindex_spin
;
748 struct mutex sd_jindex_mutex
;
749 unsigned int sd_journals
;
751 struct gfs2_jdesc
*sd_jdesc
;
752 struct gfs2_holder sd_journal_gh
;
753 struct gfs2_holder sd_jinode_gh
;
755 struct gfs2_holder sd_sc_gh
;
756 struct gfs2_holder sd_qc_gh
;
758 struct completion sd_journal_ready
;
762 struct task_struct
*sd_logd_process
;
763 struct task_struct
*sd_quotad_process
;
767 struct list_head sd_quota_list
;
768 atomic_t sd_quota_count
;
769 struct mutex sd_quota_mutex
;
770 struct mutex sd_quota_sync_mutex
;
771 wait_queue_head_t sd_quota_wait
;
772 struct list_head sd_trunc_list
;
773 spinlock_t sd_trunc_lock
;
775 unsigned int sd_quota_slots
;
776 unsigned long *sd_quota_bitmap
;
777 spinlock_t sd_bitmap_lock
;
779 u64 sd_quota_sync_gen
;
783 struct address_space sd_aspace
;
785 spinlock_t sd_log_lock
;
787 struct gfs2_trans
*sd_log_tr
;
788 unsigned int sd_log_blks_reserved
;
789 int sd_log_commited_revoke
;
791 atomic_t sd_log_pinned
;
792 unsigned int sd_log_num_revoke
;
794 struct list_head sd_log_le_revoke
;
795 struct list_head sd_log_le_ordered
;
796 spinlock_t sd_ordered_lock
;
798 atomic_t sd_log_thresh1
;
799 atomic_t sd_log_thresh2
;
800 atomic_t sd_log_blks_free
;
801 atomic_t sd_log_blks_needed
;
802 wait_queue_head_t sd_log_waitq
;
803 wait_queue_head_t sd_logd_waitq
;
806 unsigned int sd_log_head
;
807 unsigned int sd_log_tail
;
810 struct rw_semaphore sd_log_flush_lock
;
811 atomic_t sd_log_in_flight
;
812 struct bio
*sd_log_bio
;
813 wait_queue_head_t sd_log_flush_wait
;
816 atomic_t sd_reserving_log
;
817 wait_queue_head_t sd_reserving_log_wait
;
819 unsigned int sd_log_flush_head
;
820 u64 sd_log_flush_wrapped
;
822 spinlock_t sd_ail_lock
;
823 struct list_head sd_ail1_list
;
824 struct list_head sd_ail2_list
;
826 /* For quiescing the filesystem */
827 struct gfs2_holder sd_freeze_gh
;
828 atomic_t sd_freeze_state
;
829 struct mutex sd_freeze_mutex
;
831 char sd_fsname
[GFS2_FSNAME_LEN
];
832 char sd_table_name
[GFS2_FSNAME_LEN
];
833 char sd_proto_name
[GFS2_FSNAME_LEN
];
837 unsigned long sd_last_warning
;
838 struct dentry
*debugfs_dir
; /* debugfs directory */
839 struct dentry
*debugfs_dentry_glocks
;
840 struct dentry
*debugfs_dentry_glstats
;
841 struct dentry
*debugfs_dentry_sbstats
;
844 static inline void gfs2_glstats_inc(struct gfs2_glock
*gl
, int which
)
846 gl
->gl_stats
.stats
[which
]++;
849 static inline void gfs2_sbstats_inc(const struct gfs2_glock
*gl
, int which
)
851 const struct gfs2_sbd
*sdp
= gl
->gl_name
.ln_sbd
;
853 this_cpu_ptr(sdp
->sd_lkstats
)->lkstats
[gl
->gl_name
.ln_type
].stats
[which
]++;
857 #endif /* __INCORE_DOT_H__ */