blob: 734421edae85a21ac02bf00e6735228208965919 [file] [log] [blame]
David Teiglandb3b94fa2006-01-16 16:50:04 +00001/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Steven Whitehouse3a8a9a12006-05-18 15:09:15 -04003 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
David Teiglandb3b94fa2006-01-16 16:50:04 +00004 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -04007 * of the GNU General Public License version 2.
David Teiglandb3b94fa2006-01-16 16:50:04 +00008 */
9
10#ifndef __INCORE_DOT_H__
11#define __INCORE_DOT_H__
12
Steven Whitehousef2f7ba52006-09-05 10:39:21 -040013#include <linux/fs.h>
14
David Teiglandb3b94fa2006-01-16 16:50:04 +000015#define DIO_WAIT 0x00000010
16#define DIO_METADATA 0x00000020
David Teiglandb3b94fa2006-01-16 16:50:04 +000017#define DIO_ALL 0x00000100
18
19struct gfs2_log_operations;
20struct gfs2_log_element;
David Teiglandb3b94fa2006-01-16 16:50:04 +000021struct gfs2_holder;
22struct gfs2_glock;
David Teiglandb3b94fa2006-01-16 16:50:04 +000023struct gfs2_quota_data;
David Teiglandb3b94fa2006-01-16 16:50:04 +000024struct gfs2_trans;
25struct gfs2_ail;
26struct gfs2_jdesc;
David Teiglandb3b94fa2006-01-16 16:50:04 +000027struct gfs2_sbd;
28
29typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret);
30
31/*
32 * Structure of operations that are associated with each
33 * type of element in the log.
34 */
35
36struct gfs2_log_operations {
37 void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le);
38 void (*lo_incore_commit) (struct gfs2_sbd *sdp, struct gfs2_trans *tr);
39 void (*lo_before_commit) (struct gfs2_sbd *sdp);
40 void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai);
41 void (*lo_before_scan) (struct gfs2_jdesc *jd,
Al Viro55167622006-10-13 21:47:13 -040042 struct gfs2_log_header_host *head, int pass);
David Teiglandb3b94fa2006-01-16 16:50:04 +000043 int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start,
44 struct gfs2_log_descriptor *ld, __be64 *ptr,
45 int pass);
46 void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass);
Steven Whitehouseb09e5932006-04-07 11:17:32 -040047 const char *lo_name;
David Teiglandb3b94fa2006-01-16 16:50:04 +000048};
49
50struct gfs2_log_element {
51 struct list_head le_list;
Steven Whitehouseb09e5932006-04-07 11:17:32 -040052 const struct gfs2_log_operations *le_ops;
David Teiglandb3b94fa2006-01-16 16:50:04 +000053};
54
55struct gfs2_bitmap {
56 struct buffer_head *bi_bh;
57 char *bi_clone;
Steven Whitehousecd915492006-09-04 12:49:07 -040058 u32 bi_offset;
59 u32 bi_start;
60 u32 bi_len;
David Teiglandb3b94fa2006-01-16 16:50:04 +000061};
62
63struct gfs2_rgrpd {
64 struct list_head rd_list; /* Link with superblock */
65 struct list_head rd_list_mru;
66 struct list_head rd_recent; /* Recently used rgrps */
67 struct gfs2_glock *rd_gl; /* Glock for this rgrp */
Al Viro1e81c4c2006-10-13 22:51:24 -040068 struct gfs2_rindex_host rd_ri;
Al Viro68826662006-10-13 21:07:22 -040069 struct gfs2_rgrp_host rd_rg;
Steven Whitehousecd915492006-09-04 12:49:07 -040070 u64 rd_rg_vn;
David Teiglandb3b94fa2006-01-16 16:50:04 +000071 struct gfs2_bitmap *rd_bits;
72 unsigned int rd_bh_count;
Steven Whitehousef55ab262006-02-21 12:51:39 +000073 struct mutex rd_mutex;
Steven Whitehousecd915492006-09-04 12:49:07 -040074 u32 rd_free_clone;
David Teiglandb3b94fa2006-01-16 16:50:04 +000075 struct gfs2_log_element rd_le;
Steven Whitehousecd915492006-09-04 12:49:07 -040076 u32 rd_last_alloc_data;
77 u32 rd_last_alloc_meta;
David Teiglandb3b94fa2006-01-16 16:50:04 +000078 struct gfs2_sbd *rd_sbd;
79};
80
81enum gfs2_state_bits {
82 BH_Pinned = BH_PrivateStart,
Steven Whitehousef42faf42006-01-30 18:34:10 +000083 BH_Escaped = BH_PrivateStart + 1,
David Teiglandb3b94fa2006-01-16 16:50:04 +000084};
85
86BUFFER_FNS(Pinned, pinned)
87TAS_BUFFER_FNS(Pinned, pinned)
Steven Whitehousef42faf42006-01-30 18:34:10 +000088BUFFER_FNS(Escaped, escaped)
89TAS_BUFFER_FNS(Escaped, escaped)
David Teiglandb3b94fa2006-01-16 16:50:04 +000090
91struct gfs2_bufdata {
92 struct buffer_head *bd_bh;
93 struct gfs2_glock *bd_gl;
94
95 struct list_head bd_list_tr;
96 struct gfs2_log_element bd_le;
97
98 struct gfs2_ail *bd_ail;
99 struct list_head bd_ail_st_list;
100 struct list_head bd_ail_gl_list;
101};
102
David Teiglandb3b94fa2006-01-16 16:50:04 +0000103struct gfs2_glock_operations {
Steven Whitehouse1a14d3a2006-11-20 10:37:45 -0500104 void (*go_xmote_th) (struct gfs2_glock *gl, unsigned int state, int flags);
105 void (*go_xmote_bh) (struct gfs2_glock *gl);
106 void (*go_drop_th) (struct gfs2_glock *gl);
107 void (*go_drop_bh) (struct gfs2_glock *gl);
108 void (*go_sync) (struct gfs2_glock *gl);
109 void (*go_inval) (struct gfs2_glock *gl, int flags);
110 int (*go_demote_ok) (struct gfs2_glock *gl);
111 int (*go_lock) (struct gfs2_holder *gh);
112 void (*go_unlock) (struct gfs2_holder *gh);
113 void (*go_callback) (struct gfs2_glock *gl, unsigned int state);
114 void (*go_greedy) (struct gfs2_glock *gl);
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400115 const int go_type;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000116};
117
118enum {
119 /* Actions */
120 HIF_MUTEX = 0,
121 HIF_PROMOTE = 1,
122 HIF_DEMOTE = 2,
123 HIF_GREEDY = 3,
124
125 /* States */
126 HIF_ALLOCED = 4,
127 HIF_DEALLOC = 5,
128 HIF_HOLDER = 6,
129 HIF_FIRST = 7,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000130 HIF_ABORTED = 9,
131};
132
133struct gfs2_holder {
134 struct list_head gh_list;
135
136 struct gfs2_glock *gh_gl;
137 struct task_struct *gh_owner;
138 unsigned int gh_state;
Steven Whitehousefe1bded2006-04-18 10:09:15 -0400139 unsigned gh_flags;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000140
141 int gh_error;
David Woodhouse695165d2006-06-20 13:44:27 +0100142 unsigned long gh_iflags;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000143 struct completion gh_wait;
Steven Whitehoused0dc80d2006-03-29 14:36:49 -0500144 unsigned long gh_ip;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000145};
146
147enum {
David Teiglandb3b94fa2006-01-16 16:50:04 +0000148 GLF_LOCK = 1,
149 GLF_STICKY = 2,
150 GLF_PREFETCH = 3,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000151 GLF_DIRTY = 5,
152 GLF_SKIP_WAITERS2 = 6,
153 GLF_GREEDY = 7,
154};
155
156struct gfs2_glock {
Steven Whitehouseb6397892006-09-12 10:10:01 -0400157 struct hlist_node gl_list;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000158 unsigned long gl_flags; /* GLF_... */
159 struct lm_lockname gl_name;
Steven Whitehouse16feb9f2006-09-13 10:43:37 -0400160 atomic_t gl_ref;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000161
162 spinlock_t gl_spin;
163
164 unsigned int gl_state;
Steven Whitehouse37b2fa62006-09-08 13:35:56 -0400165 unsigned int gl_hash;
Steven Whitehouse320dd102006-05-18 16:25:27 -0400166 struct task_struct *gl_owner;
167 unsigned long gl_ip;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000168 struct list_head gl_holders;
169 struct list_head gl_waiters1; /* HIF_MUTEX */
170 struct list_head gl_waiters2; /* HIF_DEMOTE, HIF_GREEDY */
171 struct list_head gl_waiters3; /* HIF_PROMOTE */
172
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400173 const struct gfs2_glock_operations *gl_ops;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000174
175 struct gfs2_holder *gl_req_gh;
176 gfs2_glop_bh_t gl_req_bh;
177
Steven Whitehouse9b47c112006-09-08 10:17:58 -0400178 void *gl_lock;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000179 char *gl_lvb;
180 atomic_t gl_lvb_count;
181
Steven Whitehousecd915492006-09-04 12:49:07 -0400182 u64 gl_vn;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000183 unsigned long gl_stamp;
184 void *gl_object;
185
David Teiglandb3b94fa2006-01-16 16:50:04 +0000186 struct list_head gl_reclaim;
187
188 struct gfs2_sbd *gl_sbd;
189
190 struct inode *gl_aspace;
191 struct gfs2_log_element gl_le;
192 struct list_head gl_ail_list;
193 atomic_t gl_ail_count;
194};
195
196struct gfs2_alloc {
197 /* Quota stuff */
198
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -0400199 struct gfs2_quota_data *al_qd[2*MAXQUOTAS];
200 struct gfs2_holder al_qd_ghs[2*MAXQUOTAS];
Steven Whitehouse6b61b072006-06-06 14:49:39 -0400201 unsigned int al_qd_num;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000202
Steven Whitehouse6b61b072006-06-06 14:49:39 -0400203 u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */
204 u32 al_alloced; /* Filled in by gfs2_alloc_*() */
David Teiglandb3b94fa2006-01-16 16:50:04 +0000205
206 /* Filled in by gfs2_inplace_reserve() */
207
David Teiglandb3b94fa2006-01-16 16:50:04 +0000208 unsigned int al_line;
Steven Whitehouse6b61b072006-06-06 14:49:39 -0400209 char *al_file;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000210 struct gfs2_holder al_ri_gh;
211 struct gfs2_holder al_rgd_gh;
212 struct gfs2_rgrpd *al_rgd;
213
David Teiglandb3b94fa2006-01-16 16:50:04 +0000214};
215
216enum {
Steven Whitehousebfded272006-11-01 16:05:38 -0500217 GIF_INVALID = 0,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000218 GIF_QD_LOCKED = 1,
219 GIF_PAGED = 2,
220 GIF_SW_PAGED = 3,
221};
222
223struct gfs2_inode {
Steven Whitehouse320dd102006-05-18 16:25:27 -0400224 struct inode i_inode;
Al Viro629a21e2006-10-13 22:51:24 -0400225 struct gfs2_inum_host i_num;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000226
David Teiglandb3b94fa2006-01-16 16:50:04 +0000227 unsigned long i_flags; /* GIF_... */
228
Al Viro5c6edb52006-10-13 20:33:01 -0400229 struct gfs2_dinode_host i_di; /* To be replaced by ref to block */
David Teiglandb3b94fa2006-01-16 16:50:04 +0000230
Steven Whitehousefeaa7bb2006-06-14 15:32:57 -0400231 struct gfs2_glock *i_gl; /* Move into i_gh? */
David Teiglandb3b94fa2006-01-16 16:50:04 +0000232 struct gfs2_holder i_iopen_gh;
Steven Whitehousef42faf42006-01-30 18:34:10 +0000233 struct gfs2_holder i_gh; /* for prepare/commit_write only */
David Teiglandb3b94fa2006-01-16 16:50:04 +0000234 struct gfs2_alloc i_alloc;
Steven Whitehousecd915492006-09-04 12:49:07 -0400235 u64 i_last_rg_alloc;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000236
237 spinlock_t i_spin;
238 struct rw_semaphore i_rw_mutex;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000239 unsigned int i_greedy;
240 unsigned long i_last_pfault;
241
242 struct buffer_head *i_cache[GFS2_MAX_META_HEIGHT];
243};
244
Steven Whitehousefeaa7bb2006-06-14 15:32:57 -0400245/*
246 * Since i_inode is the first element of struct gfs2_inode,
247 * this is effectively a cast.
248 */
Steven Whitehouse320dd102006-05-18 16:25:27 -0400249static inline struct gfs2_inode *GFS2_I(struct inode *inode)
250{
251 return container_of(inode, struct gfs2_inode, i_inode);
252}
253
Steven Whitehousefeaa7bb2006-06-14 15:32:57 -0400254/* To be removed? */
255static inline struct gfs2_sbd *GFS2_SB(struct inode *inode)
256{
257 return inode->i_sb->s_fs_info;
258}
259
David Teiglandb3b94fa2006-01-16 16:50:04 +0000260enum {
261 GFF_DID_DIRECT_ALLOC = 0,
Steven Whitehouse59a1cc62006-08-04 15:41:22 -0400262 GFF_EXLOCK = 1,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000263};
264
265struct gfs2_file {
266 unsigned long f_flags; /* GFF_... */
Steven Whitehousef55ab262006-02-21 12:51:39 +0000267 struct mutex f_fl_mutex;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000268 struct gfs2_holder f_fl_gh;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000269};
270
271struct gfs2_revoke {
272 struct gfs2_log_element rv_le;
Steven Whitehousecd915492006-09-04 12:49:07 -0400273 u64 rv_blkno;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000274};
275
276struct gfs2_revoke_replay {
277 struct list_head rr_list;
Steven Whitehousecd915492006-09-04 12:49:07 -0400278 u64 rr_blkno;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000279 unsigned int rr_where;
280};
281
282enum {
David Teiglandb3b94fa2006-01-16 16:50:04 +0000283 QDF_USER = 0,
284 QDF_CHANGE = 1,
285 QDF_LOCKED = 2,
286};
287
Steven Whitehouse5c676f62006-02-27 17:23:27 -0500288struct gfs2_quota_lvb {
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -0400289 __be32 qb_magic;
290 u32 __pad;
291 __be64 qb_limit; /* Hard limit of # blocks to alloc */
292 __be64 qb_warn; /* Warn user when alloc is above this # */
293 __be64 qb_value; /* Current # blocks allocated */
Steven Whitehouse5c676f62006-02-27 17:23:27 -0500294};
295
David Teiglandb3b94fa2006-01-16 16:50:04 +0000296struct gfs2_quota_data {
297 struct list_head qd_list;
298 unsigned int qd_count;
299
Steven Whitehousecd915492006-09-04 12:49:07 -0400300 u32 qd_id;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000301 unsigned long qd_flags; /* QDF_... */
302
Steven Whitehousecd915492006-09-04 12:49:07 -0400303 s64 qd_change;
304 s64 qd_change_sync;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000305
306 unsigned int qd_slot;
307 unsigned int qd_slot_count;
308
309 struct buffer_head *qd_bh;
310 struct gfs2_quota_change *qd_bh_qc;
311 unsigned int qd_bh_count;
312
313 struct gfs2_glock *qd_gl;
314 struct gfs2_quota_lvb qd_qb;
315
Steven Whitehousecd915492006-09-04 12:49:07 -0400316 u64 qd_sync_gen;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000317 unsigned long qd_last_warn;
318 unsigned long qd_last_touched;
319};
320
321struct gfs2_log_buf {
322 struct list_head lb_list;
323 struct buffer_head *lb_bh;
324 struct buffer_head *lb_real;
325};
326
327struct gfs2_trans {
Steven Whitehoused0dc80d2006-03-29 14:36:49 -0500328 unsigned long tr_ip;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000329
330 unsigned int tr_blocks;
331 unsigned int tr_revokes;
332 unsigned int tr_reserved;
333
Steven Whitehousee317ffc2006-03-01 11:39:37 -0500334 struct gfs2_holder tr_t_gh;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000335
336 int tr_touched;
337
338 unsigned int tr_num_buf;
339 unsigned int tr_num_buf_new;
340 unsigned int tr_num_buf_rm;
341 struct list_head tr_list_buf;
342
343 unsigned int tr_num_revoke;
344 unsigned int tr_num_revoke_rm;
345};
346
347struct gfs2_ail {
348 struct list_head ai_list;
349
350 unsigned int ai_first;
351 struct list_head ai_ail1_list;
352 struct list_head ai_ail2_list;
353
Steven Whitehousecd915492006-09-04 12:49:07 -0400354 u64 ai_sync_gen;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000355};
356
357struct gfs2_jdesc {
358 struct list_head jd_list;
359
Steven Whitehouse7359a192006-02-13 12:27:43 +0000360 struct inode *jd_inode;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000361 unsigned int jd_jid;
362 int jd_dirty;
363
364 unsigned int jd_blocks;
365};
366
367#define GFS2_GLOCKD_DEFAULT 1
368#define GFS2_GLOCKD_MAX 16
369
370#define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF
371#define GFS2_QUOTA_OFF 0
372#define GFS2_QUOTA_ACCOUNT 1
373#define GFS2_QUOTA_ON 2
374
375#define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED
376#define GFS2_DATA_WRITEBACK 1
377#define GFS2_DATA_ORDERED 2
378
379struct gfs2_args {
380 char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */
381 char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */
382 char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */
383 int ar_spectator; /* Don't get a journal because we're always RO */
384 int ar_ignore_local_fs; /* Don't optimize even if local_fs is 1 */
385 int ar_localflocks; /* Let the VFS do flock|fcntl locks for us */
386 int ar_localcaching; /* Local-style caching (dangerous on multihost) */
387 int ar_debug; /* Oops on errors instead of trying to be graceful */
388 int ar_upgrade; /* Upgrade ondisk/multihost format */
389 unsigned int ar_num_glockd; /* Number of glockd threads */
390 int ar_posix_acl; /* Enable posix acls */
391 int ar_quota; /* off/account/on */
392 int ar_suiddir; /* suiddir support */
393 int ar_data; /* ordered/writeback */
394};
395
396struct gfs2_tune {
397 spinlock_t gt_spin;
398
399 unsigned int gt_ilimit;
400 unsigned int gt_ilimit_tries;
401 unsigned int gt_ilimit_min;
402 unsigned int gt_demote_secs; /* Cache retention for unheld glock */
403 unsigned int gt_incore_log_blocks;
404 unsigned int gt_log_flush_secs;
405 unsigned int gt_jindex_refresh_secs; /* Check for new journal index */
406
407 unsigned int gt_scand_secs;
408 unsigned int gt_recoverd_secs;
409 unsigned int gt_logd_secs;
410 unsigned int gt_quotad_secs;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000411
412 unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */
413 unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */
414 unsigned int gt_quota_scale_num; /* Numerator */
415 unsigned int gt_quota_scale_den; /* Denominator */
416 unsigned int gt_quota_cache_secs;
417 unsigned int gt_quota_quantum; /* Secs between syncs to quota file */
418 unsigned int gt_atime_quantum; /* Min secs between atime updates */
419 unsigned int gt_new_files_jdata;
420 unsigned int gt_new_files_directio;
421 unsigned int gt_max_atomic_write; /* Split big writes into this size */
422 unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */
423 unsigned int gt_lockdump_size;
424 unsigned int gt_stall_secs; /* Detects trouble! */
425 unsigned int gt_complain_secs;
426 unsigned int gt_reclaim_limit; /* Max num of glocks in reclaim list */
427 unsigned int gt_entries_per_readdir;
428 unsigned int gt_prefetch_secs; /* Usage window for prefetched glocks */
429 unsigned int gt_greedy_default;
430 unsigned int gt_greedy_quantum;
431 unsigned int gt_greedy_max;
432 unsigned int gt_statfs_quantum;
433 unsigned int gt_statfs_slow;
434};
435
David Teiglandb3b94fa2006-01-16 16:50:04 +0000436enum {
437 SDF_JOURNAL_CHECKED = 0,
438 SDF_JOURNAL_LIVE = 1,
439 SDF_SHUTDOWN = 2,
440 SDF_NOATIME = 3,
441};
442
David Teiglandb3b94fa2006-01-16 16:50:04 +0000443#define GFS2_FSNAME_LEN 256
444
445struct gfs2_sbd {
446 struct super_block *sd_vfs;
Abhijith Das86384602006-08-25 11:13:37 -0500447 struct super_block *sd_vfs_meta;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000448 struct kobject sd_kobj;
449 unsigned long sd_flags; /* SDF_... */
Al Virof50dfaf2006-10-13 20:45:02 -0400450 struct gfs2_sb_host sd_sb;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000451
452 /* Constants computed on mount */
453
Steven Whitehousecd915492006-09-04 12:49:07 -0400454 u32 sd_fsb2bb;
455 u32 sd_fsb2bb_shift;
456 u32 sd_diptrs; /* Number of pointers in a dinode */
457 u32 sd_inptrs; /* Number of pointers in a indirect block */
458 u32 sd_jbsize; /* Size of a journaled data block */
459 u32 sd_hash_bsize; /* sizeof(exhash block) */
460 u32 sd_hash_bsize_shift;
461 u32 sd_hash_ptrs; /* Number of pointers in a hash block */
462 u32 sd_qc_per_block;
463 u32 sd_max_dirres; /* Max blocks needed to add a directory entry */
464 u32 sd_max_height; /* Max height of a file's metadata tree */
465 u64 sd_heightsize[GFS2_MAX_META_HEIGHT];
466 u32 sd_max_jheight; /* Max height of journaled file's meta tree */
467 u64 sd_jheightsize[GFS2_MAX_META_HEIGHT];
David Teiglandb3b94fa2006-01-16 16:50:04 +0000468
469 struct gfs2_args sd_args; /* Mount arguments */
470 struct gfs2_tune sd_tune; /* Filesystem tuning structure */
471
472 /* Lock Stuff */
473
474 struct lm_lockstruct sd_lockstruct;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000475 struct list_head sd_reclaim_list;
476 spinlock_t sd_reclaim_lock;
477 wait_queue_head_t sd_reclaim_wq;
478 atomic_t sd_reclaim_count;
479 struct gfs2_holder sd_live_gh;
480 struct gfs2_glock *sd_rename_gl;
481 struct gfs2_glock *sd_trans_gl;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000482
483 /* Inode Stuff */
484
Steven Whitehousef42faf42006-01-30 18:34:10 +0000485 struct inode *sd_master_dir;
486 struct inode *sd_jindex;
487 struct inode *sd_inum_inode;
488 struct inode *sd_statfs_inode;
489 struct inode *sd_ir_inode;
490 struct inode *sd_sc_inode;
Steven Whitehousef42faf42006-01-30 18:34:10 +0000491 struct inode *sd_qc_inode;
492 struct inode *sd_rindex;
493 struct inode *sd_quota_inode;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000494
495 /* Inum stuff */
496
Steven Whitehousef55ab262006-02-21 12:51:39 +0000497 struct mutex sd_inum_mutex;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000498
499 /* StatFS stuff */
500
501 spinlock_t sd_statfs_spin;
Steven Whitehousef55ab262006-02-21 12:51:39 +0000502 struct mutex sd_statfs_mutex;
Al Virobd209cc2006-10-13 23:43:19 -0400503 struct gfs2_statfs_change_host sd_statfs_master;
504 struct gfs2_statfs_change_host sd_statfs_local;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000505 unsigned long sd_statfs_sync_time;
506
507 /* Resource group stuff */
508
Steven Whitehousecd915492006-09-04 12:49:07 -0400509 u64 sd_rindex_vn;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000510 spinlock_t sd_rindex_spin;
Steven Whitehousef55ab262006-02-21 12:51:39 +0000511 struct mutex sd_rindex_mutex;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000512 struct list_head sd_rindex_list;
513 struct list_head sd_rindex_mru_list;
514 struct list_head sd_rindex_recent_list;
515 struct gfs2_rgrpd *sd_rindex_forward;
516 unsigned int sd_rgrps;
517
518 /* Journal index stuff */
519
520 struct list_head sd_jindex_list;
521 spinlock_t sd_jindex_spin;
Steven Whitehousef55ab262006-02-21 12:51:39 +0000522 struct mutex sd_jindex_mutex;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000523 unsigned int sd_journals;
524 unsigned long sd_jindex_refresh_time;
525
526 struct gfs2_jdesc *sd_jdesc;
527 struct gfs2_holder sd_journal_gh;
528 struct gfs2_holder sd_jinode_gh;
529
530 struct gfs2_holder sd_ir_gh;
531 struct gfs2_holder sd_sc_gh;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000532 struct gfs2_holder sd_qc_gh;
533
534 /* Daemon stuff */
535
536 struct task_struct *sd_scand_process;
537 struct task_struct *sd_recoverd_process;
538 struct task_struct *sd_logd_process;
539 struct task_struct *sd_quotad_process;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000540 struct task_struct *sd_glockd_process[GFS2_GLOCKD_MAX];
541 unsigned int sd_glockd_num;
542
David Teiglandb3b94fa2006-01-16 16:50:04 +0000543 /* Quota stuff */
544
545 struct list_head sd_quota_list;
546 atomic_t sd_quota_count;
547 spinlock_t sd_quota_spin;
Steven Whitehousef55ab262006-02-21 12:51:39 +0000548 struct mutex sd_quota_mutex;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000549
550 unsigned int sd_quota_slots;
551 unsigned int sd_quota_chunks;
552 unsigned char **sd_quota_bitmap;
553
Steven Whitehousecd915492006-09-04 12:49:07 -0400554 u64 sd_quota_sync_gen;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000555 unsigned long sd_quota_sync_time;
556
557 /* Log stuff */
558
559 spinlock_t sd_log_lock;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000560
561 unsigned int sd_log_blks_reserved;
562 unsigned int sd_log_commited_buf;
563 unsigned int sd_log_commited_revoke;
564
565 unsigned int sd_log_num_gl;
566 unsigned int sd_log_num_buf;
567 unsigned int sd_log_num_revoke;
568 unsigned int sd_log_num_rg;
569 unsigned int sd_log_num_databuf;
Steven Whitehousef42faf42006-01-30 18:34:10 +0000570 unsigned int sd_log_num_jdata;
Steven Whitehouseb09e5932006-04-07 11:17:32 -0400571 unsigned int sd_log_num_hdrs;
Steven Whitehousef42faf42006-01-30 18:34:10 +0000572
David Teiglandb3b94fa2006-01-16 16:50:04 +0000573 struct list_head sd_log_le_gl;
574 struct list_head sd_log_le_buf;
575 struct list_head sd_log_le_revoke;
576 struct list_head sd_log_le_rg;
577 struct list_head sd_log_le_databuf;
578
579 unsigned int sd_log_blks_free;
Steven Whitehouse71b86f52006-03-28 14:14:04 -0500580 struct mutex sd_log_reserve_mutex;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000581
Steven Whitehousecd915492006-09-04 12:49:07 -0400582 u64 sd_log_sequence;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000583 unsigned int sd_log_head;
584 unsigned int sd_log_tail;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000585 int sd_log_idle;
586
587 unsigned long sd_log_flush_time;
Steven Whitehouse484adff2006-03-29 09:12:12 -0500588 struct rw_semaphore sd_log_flush_lock;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000589 struct list_head sd_log_flush_list;
590
591 unsigned int sd_log_flush_head;
Steven Whitehousecd915492006-09-04 12:49:07 -0400592 u64 sd_log_flush_wrapped;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000593
594 struct list_head sd_ail1_list;
595 struct list_head sd_ail2_list;
Steven Whitehousecd915492006-09-04 12:49:07 -0400596 u64 sd_ail_sync_gen;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000597
598 /* Replay stuff */
599
600 struct list_head sd_revoke_list;
601 unsigned int sd_replay_tail;
602
603 unsigned int sd_found_blocks;
604 unsigned int sd_found_revokes;
605 unsigned int sd_replayed_blocks;
606
607 /* For quiescing the filesystem */
608
609 struct gfs2_holder sd_freeze_gh;
Steven Whitehousef55ab262006-02-21 12:51:39 +0000610 struct mutex sd_freeze_lock;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000611 unsigned int sd_freeze_count;
612
613 /* Counters */
614
615 atomic_t sd_glock_count;
616 atomic_t sd_glock_held_count;
617 atomic_t sd_inode_count;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000618 atomic_t sd_reclaimed;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000619
620 char sd_fsname[GFS2_FSNAME_LEN];
621 char sd_table_name[GFS2_FSNAME_LEN];
622 char sd_proto_name[GFS2_FSNAME_LEN];
623
624 /* Debugging crud */
625
626 unsigned long sd_last_warning;
Abhijith Das86384602006-08-25 11:13:37 -0500627 struct vfsmount *sd_gfs2mnt;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000628};
629
630#endif /* __INCORE_DOT_H__ */
631