Commit | Line | Data |
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b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
29d38cd1 | 3 | * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
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 | |
e9fc2aa0 | 7 | * of the GNU General Public License version 2. |
b3b94faa DT |
8 | */ |
9 | ||
10 | #ifndef __INCORE_DOT_H__ | |
11 | #define __INCORE_DOT_H__ | |
12 | ||
f2f7ba52 | 13 | #include <linux/fs.h> |
c4f68a13 | 14 | #include <linux/workqueue.h> |
fe64d517 | 15 | #include <linux/slow-work.h> |
f057f6cd SW |
16 | #include <linux/dlm.h> |
17 | #include <linux/buffer_head.h> | |
f2f7ba52 | 18 | |
b3b94faa DT |
19 | #define DIO_WAIT 0x00000010 |
20 | #define DIO_METADATA 0x00000020 | |
b3b94faa DT |
21 | #define DIO_ALL 0x00000100 |
22 | ||
23 | struct gfs2_log_operations; | |
24 | struct gfs2_log_element; | |
b3b94faa DT |
25 | struct gfs2_holder; |
26 | struct gfs2_glock; | |
b3b94faa | 27 | struct gfs2_quota_data; |
b3b94faa DT |
28 | struct gfs2_trans; |
29 | struct gfs2_ail; | |
30 | struct gfs2_jdesc; | |
b3b94faa | 31 | struct gfs2_sbd; |
f057f6cd | 32 | struct lm_lockops; |
b3b94faa DT |
33 | |
34 | typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret); | |
35 | ||
bb8d8a6f SW |
36 | struct gfs2_log_header_host { |
37 | u64 lh_sequence; /* Sequence number of this transaction */ | |
38 | u32 lh_flags; /* GFS2_LOG_HEAD_... */ | |
39 | u32 lh_tail; /* Block number of log tail */ | |
40 | u32 lh_blkno; | |
41 | u32 lh_hash; | |
42 | }; | |
43 | ||
b3b94faa DT |
44 | /* |
45 | * Structure of operations that are associated with each | |
46 | * type of element in the log. | |
47 | */ | |
48 | ||
49 | struct gfs2_log_operations { | |
50 | void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le); | |
b3b94faa DT |
51 | void (*lo_before_commit) (struct gfs2_sbd *sdp); |
52 | void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai); | |
53 | void (*lo_before_scan) (struct gfs2_jdesc *jd, | |
55167622 | 54 | struct gfs2_log_header_host *head, int pass); |
b3b94faa DT |
55 | int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start, |
56 | struct gfs2_log_descriptor *ld, __be64 *ptr, | |
57 | int pass); | |
58 | void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass); | |
b09e593d | 59 | const char *lo_name; |
b3b94faa DT |
60 | }; |
61 | ||
62 | struct gfs2_log_element { | |
63 | struct list_head le_list; | |
b09e593d | 64 | const struct gfs2_log_operations *le_ops; |
b3b94faa DT |
65 | }; |
66 | ||
67 | struct gfs2_bitmap { | |
68 | struct buffer_head *bi_bh; | |
69 | char *bi_clone; | |
cd915493 SW |
70 | u32 bi_offset; |
71 | u32 bi_start; | |
72 | u32 bi_len; | |
b3b94faa DT |
73 | }; |
74 | ||
75 | struct gfs2_rgrpd { | |
76 | struct list_head rd_list; /* Link with superblock */ | |
77 | struct list_head rd_list_mru; | |
b3b94faa | 78 | struct gfs2_glock *rd_gl; /* Glock for this rgrp */ |
bb8d8a6f SW |
79 | u64 rd_addr; /* grp block disk address */ |
80 | u64 rd_data0; /* first data location */ | |
81 | u32 rd_length; /* length of rgrp header in fs blocks */ | |
82 | u32 rd_data; /* num of data blocks in rgrp */ | |
83 | u32 rd_bitbytes; /* number of bytes in data bitmaps */ | |
cfc8b549 | 84 | u32 rd_free; |
73f74948 SW |
85 | u32 rd_free_clone; |
86 | u32 rd_dinodes; | |
d8b71f73 | 87 | u64 rd_igeneration; |
b3b94faa | 88 | struct gfs2_bitmap *rd_bits; |
f55ab26a | 89 | struct mutex rd_mutex; |
b3b94faa | 90 | struct gfs2_log_element rd_le; |
b3b94faa | 91 | struct gfs2_sbd *rd_sbd; |
73f74948 SW |
92 | unsigned int rd_bh_count; |
93 | u32 rd_last_alloc; | |
42d52e38 | 94 | unsigned char rd_flags; |
09010978 SW |
95 | #define GFS2_RDF_CHECK 0x10000000 /* check for unlinked inodes */ |
96 | #define GFS2_RDF_UPTODATE 0x20000000 /* rg is up to date */ | |
97 | #define GFS2_RDF_ERROR 0x40000000 /* error in rg */ | |
98 | #define GFS2_RDF_MASK 0xf0000000 /* mask for internal flags */ | |
b3b94faa DT |
99 | }; |
100 | ||
101 | enum gfs2_state_bits { | |
102 | BH_Pinned = BH_PrivateStart, | |
f42faf4f | 103 | BH_Escaped = BH_PrivateStart + 1, |
b3b94faa DT |
104 | }; |
105 | ||
106 | BUFFER_FNS(Pinned, pinned) | |
107 | TAS_BUFFER_FNS(Pinned, pinned) | |
f42faf4f SW |
108 | BUFFER_FNS(Escaped, escaped) |
109 | TAS_BUFFER_FNS(Escaped, escaped) | |
b3b94faa DT |
110 | |
111 | struct gfs2_bufdata { | |
112 | struct buffer_head *bd_bh; | |
113 | struct gfs2_glock *bd_gl; | |
114 | ||
82e86087 SW |
115 | union { |
116 | struct list_head list_tr; | |
117 | u64 blkno; | |
118 | } u; | |
119 | #define bd_list_tr u.list_tr | |
120 | #define bd_blkno u.blkno | |
121 | ||
b3b94faa DT |
122 | struct gfs2_log_element bd_le; |
123 | ||
124 | struct gfs2_ail *bd_ail; | |
125 | struct list_head bd_ail_st_list; | |
126 | struct list_head bd_ail_gl_list; | |
127 | }; | |
128 | ||
f057f6cd SW |
129 | /* |
130 | * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a | |
131 | * prefix of lock_dlm_ gets awkward. | |
132 | */ | |
133 | ||
134 | #define GDLM_STRNAME_BYTES 25 | |
135 | #define GDLM_LVB_SIZE 32 | |
136 | ||
137 | enum { | |
138 | DFL_BLOCK_LOCKS = 0, | |
139 | }; | |
140 | ||
141 | struct lm_lockname { | |
142 | u64 ln_number; | |
143 | unsigned int ln_type; | |
144 | }; | |
145 | ||
146 | #define lm_name_equal(name1, name2) \ | |
147 | (((name1)->ln_number == (name2)->ln_number) && \ | |
148 | ((name1)->ln_type == (name2)->ln_type)) | |
149 | ||
150 | ||
b3b94faa | 151 | struct gfs2_glock_operations { |
b5d32bea | 152 | void (*go_xmote_th) (struct gfs2_glock *gl); |
6802e340 | 153 | int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh); |
1a14d3a6 | 154 | void (*go_inval) (struct gfs2_glock *gl, int flags); |
97cc1025 | 155 | int (*go_demote_ok) (const struct gfs2_glock *gl); |
1a14d3a6 SW |
156 | int (*go_lock) (struct gfs2_holder *gh); |
157 | void (*go_unlock) (struct gfs2_holder *gh); | |
6802e340 | 158 | int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl); |
8fb4b536 | 159 | const int go_type; |
c4f68a13 | 160 | const unsigned long go_min_hold_time; |
b3b94faa DT |
161 | }; |
162 | ||
163 | enum { | |
b3b94faa | 164 | /* States */ |
6802e340 | 165 | HIF_HOLDER = 6, /* Set for gh that "holds" the glock */ |
b3b94faa | 166 | HIF_FIRST = 7, |
fee852e3 | 167 | HIF_WAIT = 10, |
b3b94faa DT |
168 | }; |
169 | ||
170 | struct gfs2_holder { | |
171 | struct list_head gh_list; | |
172 | ||
173 | struct gfs2_glock *gh_gl; | |
b1e058da | 174 | struct pid *gh_owner_pid; |
b3b94faa | 175 | unsigned int gh_state; |
fe1bdedc | 176 | unsigned gh_flags; |
b3b94faa DT |
177 | |
178 | int gh_error; | |
6802e340 | 179 | unsigned long gh_iflags; /* HIF_... */ |
d0dc80db | 180 | unsigned long gh_ip; |
b3b94faa DT |
181 | }; |
182 | ||
183 | enum { | |
6802e340 | 184 | GLF_LOCK = 1, |
6802e340 SW |
185 | GLF_DEMOTE = 3, |
186 | GLF_PENDING_DEMOTE = 4, | |
187 | GLF_DEMOTE_IN_PROGRESS = 5, | |
188 | GLF_DIRTY = 6, | |
189 | GLF_LFLUSH = 7, | |
190 | GLF_INVALIDATE_IN_PROGRESS = 8, | |
191 | GLF_REPLY_PENDING = 9, | |
f057f6cd SW |
192 | GLF_INITIAL = 10, |
193 | GLF_FROZEN = 11, | |
b3b94faa DT |
194 | }; |
195 | ||
196 | struct gfs2_glock { | |
b6397893 | 197 | struct hlist_node gl_list; |
b3b94faa DT |
198 | unsigned long gl_flags; /* GLF_... */ |
199 | struct lm_lockname gl_name; | |
16feb9fe | 200 | atomic_t gl_ref; |
b3b94faa DT |
201 | |
202 | spinlock_t gl_spin; | |
203 | ||
204 | unsigned int gl_state; | |
6802e340 SW |
205 | unsigned int gl_target; |
206 | unsigned int gl_reply; | |
37b2fa6a | 207 | unsigned int gl_hash; |
02ffad08 | 208 | unsigned int gl_req; |
3b8249f6 SW |
209 | unsigned int gl_demote_state; /* state requested by remote node */ |
210 | unsigned long gl_demote_time; /* time of first demote request */ | |
b3b94faa | 211 | struct list_head gl_holders; |
b3b94faa | 212 | |
8fb4b536 | 213 | const struct gfs2_glock_operations *gl_ops; |
f057f6cd SW |
214 | char gl_strname[GDLM_STRNAME_BYTES]; |
215 | struct dlm_lksb gl_lksb; | |
216 | char gl_lvb[32]; | |
c4f68a13 | 217 | unsigned long gl_tchange; |
b3b94faa DT |
218 | void *gl_object; |
219 | ||
97cc1025 | 220 | struct list_head gl_lru; |
b3b94faa DT |
221 | |
222 | struct gfs2_sbd *gl_sbd; | |
223 | ||
224 | struct inode *gl_aspace; | |
b3b94faa DT |
225 | struct list_head gl_ail_list; |
226 | atomic_t gl_ail_count; | |
c4f68a13 | 227 | struct delayed_work gl_work; |
b3b94faa DT |
228 | }; |
229 | ||
da755fdb SW |
230 | #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */ |
231 | ||
b3b94faa DT |
232 | struct gfs2_alloc { |
233 | /* Quota stuff */ | |
234 | ||
e9fc2aa0 SW |
235 | struct gfs2_quota_data *al_qd[2*MAXQUOTAS]; |
236 | struct gfs2_holder al_qd_ghs[2*MAXQUOTAS]; | |
6b61b072 | 237 | unsigned int al_qd_num; |
b3b94faa | 238 | |
6b61b072 SW |
239 | u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */ |
240 | u32 al_alloced; /* Filled in by gfs2_alloc_*() */ | |
b3b94faa DT |
241 | |
242 | /* Filled in by gfs2_inplace_reserve() */ | |
243 | ||
b3b94faa | 244 | unsigned int al_line; |
6b61b072 | 245 | char *al_file; |
b3b94faa DT |
246 | struct gfs2_holder al_ri_gh; |
247 | struct gfs2_holder al_rgd_gh; | |
248 | struct gfs2_rgrpd *al_rgd; | |
249 | ||
b3b94faa DT |
250 | }; |
251 | ||
252 | enum { | |
bfded27b | 253 | GIF_INVALID = 0, |
b3b94faa | 254 | GIF_QD_LOCKED = 1, |
b3b94faa | 255 | GIF_SW_PAGED = 3, |
091806ed | 256 | GIF_USER = 4, /* user inode, not metadata addr space */ |
b3b94faa DT |
257 | }; |
258 | ||
bb8d8a6f | 259 | |
b3b94faa | 260 | struct gfs2_inode { |
320dd101 | 261 | struct inode i_inode; |
dbb7cae2 SW |
262 | u64 i_no_addr; |
263 | u64 i_no_formal_ino; | |
bcf0b5b3 | 264 | u64 i_generation; |
3767ac21 | 265 | u64 i_eattr; |
c9e98886 | 266 | loff_t i_disksize; |
b3b94faa | 267 | unsigned long i_flags; /* GIF_... */ |
feaa7bba | 268 | struct gfs2_glock *i_gl; /* Move into i_gh? */ |
b3b94faa | 269 | struct gfs2_holder i_iopen_gh; |
f42faf4f | 270 | struct gfs2_holder i_gh; /* for prepare/commit_write only */ |
6dbd8224 | 271 | struct gfs2_alloc *i_alloc; |
ce276b06 | 272 | u64 i_goal; /* goal block for allocations */ |
b3b94faa | 273 | struct rw_semaphore i_rw_mutex; |
813e0c46 | 274 | struct list_head i_trunc_list; |
ad6203f2 | 275 | u32 i_entries; |
383f01fb | 276 | u32 i_diskflags; |
ecc30c79 | 277 | u8 i_height; |
9a004508 | 278 | u8 i_depth; |
b3b94faa DT |
279 | }; |
280 | ||
feaa7bba SW |
281 | /* |
282 | * Since i_inode is the first element of struct gfs2_inode, | |
283 | * this is effectively a cast. | |
284 | */ | |
320dd101 SW |
285 | static inline struct gfs2_inode *GFS2_I(struct inode *inode) |
286 | { | |
287 | return container_of(inode, struct gfs2_inode, i_inode); | |
288 | } | |
289 | ||
bf36a713 | 290 | static inline struct gfs2_sbd *GFS2_SB(const struct inode *inode) |
feaa7bba SW |
291 | { |
292 | return inode->i_sb->s_fs_info; | |
293 | } | |
294 | ||
b3b94faa | 295 | struct gfs2_file { |
f55ab26a | 296 | struct mutex f_fl_mutex; |
b3b94faa | 297 | struct gfs2_holder f_fl_gh; |
b3b94faa DT |
298 | }; |
299 | ||
b3b94faa DT |
300 | struct gfs2_revoke_replay { |
301 | struct list_head rr_list; | |
cd915493 | 302 | u64 rr_blkno; |
b3b94faa DT |
303 | unsigned int rr_where; |
304 | }; | |
305 | ||
b3b94faa DT |
306 | enum { |
307 | QDF_USER = 0, | |
308 | QDF_CHANGE = 1, | |
309 | QDF_LOCKED = 2, | |
310 | }; | |
311 | ||
312 | struct gfs2_quota_data { | |
313 | struct list_head qd_list; | |
0a7ab79c AD |
314 | struct list_head qd_reclaim; |
315 | ||
316 | atomic_t qd_count; | |
b3b94faa | 317 | |
cd915493 | 318 | u32 qd_id; |
b3b94faa DT |
319 | unsigned long qd_flags; /* QDF_... */ |
320 | ||
cd915493 SW |
321 | s64 qd_change; |
322 | s64 qd_change_sync; | |
b3b94faa DT |
323 | |
324 | unsigned int qd_slot; | |
325 | unsigned int qd_slot_count; | |
326 | ||
327 | struct buffer_head *qd_bh; | |
328 | struct gfs2_quota_change *qd_bh_qc; | |
329 | unsigned int qd_bh_count; | |
330 | ||
331 | struct gfs2_glock *qd_gl; | |
332 | struct gfs2_quota_lvb qd_qb; | |
333 | ||
cd915493 | 334 | u64 qd_sync_gen; |
b3b94faa | 335 | unsigned long qd_last_warn; |
b3b94faa DT |
336 | }; |
337 | ||
b3b94faa | 338 | struct gfs2_trans { |
d0dc80db | 339 | unsigned long tr_ip; |
b3b94faa DT |
340 | |
341 | unsigned int tr_blocks; | |
342 | unsigned int tr_revokes; | |
343 | unsigned int tr_reserved; | |
344 | ||
e317ffcb | 345 | struct gfs2_holder tr_t_gh; |
b3b94faa DT |
346 | |
347 | int tr_touched; | |
348 | ||
349 | unsigned int tr_num_buf; | |
350 | unsigned int tr_num_buf_new; | |
2332c443 | 351 | unsigned int tr_num_databuf_new; |
b3b94faa | 352 | unsigned int tr_num_buf_rm; |
2332c443 | 353 | unsigned int tr_num_databuf_rm; |
b3b94faa DT |
354 | struct list_head tr_list_buf; |
355 | ||
356 | unsigned int tr_num_revoke; | |
357 | unsigned int tr_num_revoke_rm; | |
358 | }; | |
359 | ||
360 | struct gfs2_ail { | |
361 | struct list_head ai_list; | |
362 | ||
363 | unsigned int ai_first; | |
364 | struct list_head ai_ail1_list; | |
365 | struct list_head ai_ail2_list; | |
366 | ||
cd915493 | 367 | u64 ai_sync_gen; |
b3b94faa DT |
368 | }; |
369 | ||
da6dd40d BP |
370 | struct gfs2_journal_extent { |
371 | struct list_head extent_list; | |
372 | ||
373 | unsigned int lblock; /* First logical block */ | |
374 | u64 dblock; /* First disk block */ | |
375 | u64 blocks; | |
376 | }; | |
377 | ||
b3b94faa DT |
378 | struct gfs2_jdesc { |
379 | struct list_head jd_list; | |
da6dd40d | 380 | struct list_head extent_list; |
fe64d517 | 381 | struct slow_work jd_work; |
7359a19c | 382 | struct inode *jd_inode; |
fe64d517 SW |
383 | unsigned long jd_flags; |
384 | #define JDF_RECOVERY 1 | |
b3b94faa | 385 | unsigned int jd_jid; |
b3b94faa DT |
386 | unsigned int jd_blocks; |
387 | }; | |
388 | ||
bb8d8a6f SW |
389 | struct gfs2_statfs_change_host { |
390 | s64 sc_total; | |
391 | s64 sc_free; | |
392 | s64 sc_dinodes; | |
393 | }; | |
394 | ||
b3b94faa DT |
395 | #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF |
396 | #define GFS2_QUOTA_OFF 0 | |
397 | #define GFS2_QUOTA_ACCOUNT 1 | |
398 | #define GFS2_QUOTA_ON 2 | |
399 | ||
400 | #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED | |
401 | #define GFS2_DATA_WRITEBACK 1 | |
402 | #define GFS2_DATA_ORDERED 2 | |
403 | ||
404 | struct gfs2_args { | |
37ec89e8 SW |
405 | char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */ |
406 | char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */ | |
407 | char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */ | |
408 | unsigned int ar_spectator:1; /* Don't get a journal */ | |
409 | unsigned int ar_ignore_local_fs:1; /* Ignore optimisations */ | |
410 | unsigned int ar_localflocks:1; /* Let the VFS do flock|fcntl */ | |
411 | unsigned int ar_localcaching:1; /* Local caching */ | |
412 | unsigned int ar_debug:1; /* Oops on errors */ | |
413 | unsigned int ar_upgrade:1; /* Upgrade ondisk format */ | |
414 | unsigned int ar_posix_acl:1; /* Enable posix acls */ | |
415 | unsigned int ar_quota:2; /* off/account/on */ | |
416 | unsigned int ar_suiddir:1; /* suiddir support */ | |
417 | unsigned int ar_data:2; /* ordered/writeback */ | |
418 | unsigned int ar_meta:1; /* mount metafs */ | |
f15ab561 | 419 | unsigned int ar_discard:1; /* discard requests */ |
48c2b613 | 420 | int ar_commit; /* Commit interval */ |
b3b94faa DT |
421 | }; |
422 | ||
423 | struct gfs2_tune { | |
424 | spinlock_t gt_spin; | |
425 | ||
b3b94faa DT |
426 | unsigned int gt_incore_log_blocks; |
427 | unsigned int gt_log_flush_secs; | |
b3b94faa | 428 | |
b3b94faa | 429 | unsigned int gt_logd_secs; |
b3b94faa DT |
430 | |
431 | unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */ | |
432 | unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */ | |
433 | unsigned int gt_quota_scale_num; /* Numerator */ | |
434 | unsigned int gt_quota_scale_den; /* Denominator */ | |
b3b94faa | 435 | unsigned int gt_quota_quantum; /* Secs between syncs to quota file */ |
b3b94faa | 436 | unsigned int gt_new_files_jdata; |
b3b94faa | 437 | unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */ |
b3b94faa DT |
438 | unsigned int gt_stall_secs; /* Detects trouble! */ |
439 | unsigned int gt_complain_secs; | |
b3b94faa DT |
440 | unsigned int gt_statfs_quantum; |
441 | unsigned int gt_statfs_slow; | |
442 | }; | |
443 | ||
b3b94faa DT |
444 | enum { |
445 | SDF_JOURNAL_CHECKED = 0, | |
446 | SDF_JOURNAL_LIVE = 1, | |
447 | SDF_SHUTDOWN = 2, | |
254db57f | 448 | SDF_NOBARRIERS = 3, |
fe64d517 | 449 | SDF_NORECOVERY = 4, |
b3b94faa DT |
450 | }; |
451 | ||
b3b94faa DT |
452 | #define GFS2_FSNAME_LEN 256 |
453 | ||
bb8d8a6f SW |
454 | struct gfs2_inum_host { |
455 | u64 no_formal_ino; | |
456 | u64 no_addr; | |
457 | }; | |
458 | ||
459 | struct gfs2_sb_host { | |
460 | u32 sb_magic; | |
461 | u32 sb_type; | |
462 | u32 sb_format; | |
463 | ||
464 | u32 sb_fs_format; | |
465 | u32 sb_multihost_format; | |
466 | u32 sb_bsize; | |
467 | u32 sb_bsize_shift; | |
468 | ||
469 | struct gfs2_inum_host sb_master_dir; | |
470 | struct gfs2_inum_host sb_root_dir; | |
471 | ||
472 | char sb_lockproto[GFS2_LOCKNAME_LEN]; | |
473 | char sb_locktable[GFS2_LOCKNAME_LEN]; | |
02e3cc70 | 474 | u8 sb_uuid[16]; |
bb8d8a6f SW |
475 | }; |
476 | ||
f057f6cd SW |
477 | /* |
478 | * lm_mount() return values | |
479 | * | |
480 | * ls_jid - the journal ID this node should use | |
481 | * ls_first - this node is the first to mount the file system | |
482 | * ls_lockspace - lock module's context for this file system | |
483 | * ls_ops - lock module's functions | |
484 | */ | |
485 | ||
486 | struct lm_lockstruct { | |
487 | u32 ls_id; | |
488 | unsigned int ls_jid; | |
489 | unsigned int ls_first; | |
490 | unsigned int ls_first_done; | |
491 | unsigned int ls_nodir; | |
492 | const struct lm_lockops *ls_ops; | |
493 | unsigned long ls_flags; | |
494 | dlm_lockspace_t *ls_dlm; | |
495 | ||
f057f6cd SW |
496 | int ls_recover_jid_done; |
497 | int ls_recover_jid_status; | |
498 | }; | |
499 | ||
b3b94faa DT |
500 | struct gfs2_sbd { |
501 | struct super_block *sd_vfs; | |
502 | struct kobject sd_kobj; | |
503 | unsigned long sd_flags; /* SDF_... */ | |
f50dfaf7 | 504 | struct gfs2_sb_host sd_sb; |
b3b94faa DT |
505 | |
506 | /* Constants computed on mount */ | |
507 | ||
cd915493 SW |
508 | u32 sd_fsb2bb; |
509 | u32 sd_fsb2bb_shift; | |
510 | u32 sd_diptrs; /* Number of pointers in a dinode */ | |
511 | u32 sd_inptrs; /* Number of pointers in a indirect block */ | |
512 | u32 sd_jbsize; /* Size of a journaled data block */ | |
513 | u32 sd_hash_bsize; /* sizeof(exhash block) */ | |
514 | u32 sd_hash_bsize_shift; | |
515 | u32 sd_hash_ptrs; /* Number of pointers in a hash block */ | |
516 | u32 sd_qc_per_block; | |
517 | u32 sd_max_dirres; /* Max blocks needed to add a directory entry */ | |
518 | u32 sd_max_height; /* Max height of a file's metadata tree */ | |
ecc30c79 | 519 | u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1]; |
cd915493 | 520 | u32 sd_max_jheight; /* Max height of journaled file's meta tree */ |
ecc30c79 | 521 | u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1]; |
b3b94faa DT |
522 | |
523 | struct gfs2_args sd_args; /* Mount arguments */ | |
524 | struct gfs2_tune sd_tune; /* Filesystem tuning structure */ | |
525 | ||
526 | /* Lock Stuff */ | |
527 | ||
528 | struct lm_lockstruct sd_lockstruct; | |
b3b94faa DT |
529 | struct gfs2_holder sd_live_gh; |
530 | struct gfs2_glock *sd_rename_gl; | |
531 | struct gfs2_glock *sd_trans_gl; | |
b3b94faa DT |
532 | |
533 | /* Inode Stuff */ | |
534 | ||
9b8df98f SW |
535 | struct dentry *sd_master_dir; |
536 | struct dentry *sd_root_dir; | |
537 | ||
f42faf4f SW |
538 | struct inode *sd_jindex; |
539 | struct inode *sd_inum_inode; | |
540 | struct inode *sd_statfs_inode; | |
541 | struct inode *sd_ir_inode; | |
542 | struct inode *sd_sc_inode; | |
f42faf4f SW |
543 | struct inode *sd_qc_inode; |
544 | struct inode *sd_rindex; | |
545 | struct inode *sd_quota_inode; | |
b3b94faa DT |
546 | |
547 | /* Inum stuff */ | |
548 | ||
f55ab26a | 549 | struct mutex sd_inum_mutex; |
b3b94faa DT |
550 | |
551 | /* StatFS stuff */ | |
552 | ||
553 | spinlock_t sd_statfs_spin; | |
bd209cc0 AV |
554 | struct gfs2_statfs_change_host sd_statfs_master; |
555 | struct gfs2_statfs_change_host sd_statfs_local; | |
b3b94faa DT |
556 | |
557 | /* Resource group stuff */ | |
558 | ||
cf45b752 | 559 | int sd_rindex_uptodate; |
b3b94faa | 560 | spinlock_t sd_rindex_spin; |
f55ab26a | 561 | struct mutex sd_rindex_mutex; |
b3b94faa DT |
562 | struct list_head sd_rindex_list; |
563 | struct list_head sd_rindex_mru_list; | |
b3b94faa DT |
564 | struct gfs2_rgrpd *sd_rindex_forward; |
565 | unsigned int sd_rgrps; | |
566 | ||
567 | /* Journal index stuff */ | |
568 | ||
569 | struct list_head sd_jindex_list; | |
570 | spinlock_t sd_jindex_spin; | |
f55ab26a | 571 | struct mutex sd_jindex_mutex; |
b3b94faa | 572 | unsigned int sd_journals; |
b3b94faa DT |
573 | |
574 | struct gfs2_jdesc *sd_jdesc; | |
575 | struct gfs2_holder sd_journal_gh; | |
576 | struct gfs2_holder sd_jinode_gh; | |
577 | ||
578 | struct gfs2_holder sd_ir_gh; | |
579 | struct gfs2_holder sd_sc_gh; | |
b3b94faa DT |
580 | struct gfs2_holder sd_qc_gh; |
581 | ||
582 | /* Daemon stuff */ | |
583 | ||
b3b94faa DT |
584 | struct task_struct *sd_logd_process; |
585 | struct task_struct *sd_quotad_process; | |
b3b94faa | 586 | |
b3b94faa DT |
587 | /* Quota stuff */ |
588 | ||
589 | struct list_head sd_quota_list; | |
590 | atomic_t sd_quota_count; | |
f55ab26a | 591 | struct mutex sd_quota_mutex; |
37b2c837 | 592 | wait_queue_head_t sd_quota_wait; |
813e0c46 SW |
593 | struct list_head sd_trunc_list; |
594 | spinlock_t sd_trunc_lock; | |
b3b94faa DT |
595 | |
596 | unsigned int sd_quota_slots; | |
597 | unsigned int sd_quota_chunks; | |
598 | unsigned char **sd_quota_bitmap; | |
599 | ||
cd915493 | 600 | u64 sd_quota_sync_gen; |
b3b94faa DT |
601 | |
602 | /* Log stuff */ | |
603 | ||
604 | spinlock_t sd_log_lock; | |
b3b94faa DT |
605 | |
606 | unsigned int sd_log_blks_reserved; | |
607 | unsigned int sd_log_commited_buf; | |
2332c443 | 608 | unsigned int sd_log_commited_databuf; |
b3b94faa DT |
609 | unsigned int sd_log_commited_revoke; |
610 | ||
b3b94faa DT |
611 | unsigned int sd_log_num_buf; |
612 | unsigned int sd_log_num_revoke; | |
613 | unsigned int sd_log_num_rg; | |
614 | unsigned int sd_log_num_databuf; | |
f42faf4f | 615 | |
b3b94faa DT |
616 | struct list_head sd_log_le_buf; |
617 | struct list_head sd_log_le_revoke; | |
618 | struct list_head sd_log_le_rg; | |
619 | struct list_head sd_log_le_databuf; | |
d7b616e2 | 620 | struct list_head sd_log_le_ordered; |
b3b94faa | 621 | |
fd041f0b | 622 | atomic_t sd_log_blks_free; |
71b86f56 | 623 | struct mutex sd_log_reserve_mutex; |
b3b94faa | 624 | |
cd915493 | 625 | u64 sd_log_sequence; |
b3b94faa DT |
626 | unsigned int sd_log_head; |
627 | unsigned int sd_log_tail; | |
b3b94faa DT |
628 | int sd_log_idle; |
629 | ||
630 | unsigned long sd_log_flush_time; | |
484adff8 | 631 | struct rw_semaphore sd_log_flush_lock; |
16615be1 SW |
632 | atomic_t sd_log_in_flight; |
633 | wait_queue_head_t sd_log_flush_wait; | |
b3b94faa DT |
634 | |
635 | unsigned int sd_log_flush_head; | |
cd915493 | 636 | u64 sd_log_flush_wrapped; |
b3b94faa DT |
637 | |
638 | struct list_head sd_ail1_list; | |
639 | struct list_head sd_ail2_list; | |
cd915493 | 640 | u64 sd_ail_sync_gen; |
b3b94faa DT |
641 | |
642 | /* Replay stuff */ | |
643 | ||
644 | struct list_head sd_revoke_list; | |
645 | unsigned int sd_replay_tail; | |
646 | ||
647 | unsigned int sd_found_blocks; | |
648 | unsigned int sd_found_revokes; | |
649 | unsigned int sd_replayed_blocks; | |
650 | ||
651 | /* For quiescing the filesystem */ | |
652 | ||
653 | struct gfs2_holder sd_freeze_gh; | |
f55ab26a | 654 | struct mutex sd_freeze_lock; |
b3b94faa DT |
655 | unsigned int sd_freeze_count; |
656 | ||
b3b94faa DT |
657 | char sd_fsname[GFS2_FSNAME_LEN]; |
658 | char sd_table_name[GFS2_FSNAME_LEN]; | |
659 | char sd_proto_name[GFS2_FSNAME_LEN]; | |
660 | ||
661 | /* Debugging crud */ | |
662 | ||
663 | unsigned long sd_last_warning; | |
5f882096 RP |
664 | struct dentry *debugfs_dir; /* debugfs directory */ |
665 | struct dentry *debugfs_dentry_glocks; /* for debugfs */ | |
b3b94faa DT |
666 | }; |
667 | ||
668 | #endif /* __INCORE_DOT_H__ */ | |
669 |