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 | ||
60a0b8f9 SW |
67 | #define GBF_FULL 1 |
68 | ||
b3b94faa DT |
69 | struct gfs2_bitmap { |
70 | struct buffer_head *bi_bh; | |
71 | char *bi_clone; | |
60a0b8f9 | 72 | unsigned long bi_flags; |
cd915493 SW |
73 | u32 bi_offset; |
74 | u32 bi_start; | |
75 | u32 bi_len; | |
b3b94faa DT |
76 | }; |
77 | ||
78 | struct gfs2_rgrpd { | |
79 | struct list_head rd_list; /* Link with superblock */ | |
80 | struct list_head rd_list_mru; | |
b3b94faa | 81 | struct gfs2_glock *rd_gl; /* Glock for this rgrp */ |
bb8d8a6f SW |
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 */ | |
cfc8b549 | 87 | u32 rd_free; |
73f74948 SW |
88 | u32 rd_free_clone; |
89 | u32 rd_dinodes; | |
d8b71f73 | 90 | u64 rd_igeneration; |
b3b94faa | 91 | struct gfs2_bitmap *rd_bits; |
f55ab26a | 92 | struct mutex rd_mutex; |
b3b94faa | 93 | struct gfs2_log_element rd_le; |
b3b94faa | 94 | struct gfs2_sbd *rd_sbd; |
73f74948 SW |
95 | unsigned int rd_bh_count; |
96 | u32 rd_last_alloc; | |
42d52e38 | 97 | unsigned char rd_flags; |
09010978 SW |
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_MASK 0xf0000000 /* mask for internal flags */ | |
b3b94faa DT |
102 | }; |
103 | ||
104 | enum gfs2_state_bits { | |
105 | BH_Pinned = BH_PrivateStart, | |
f42faf4f | 106 | BH_Escaped = BH_PrivateStart + 1, |
b3b94faa DT |
107 | }; |
108 | ||
109 | BUFFER_FNS(Pinned, pinned) | |
110 | TAS_BUFFER_FNS(Pinned, pinned) | |
f42faf4f SW |
111 | BUFFER_FNS(Escaped, escaped) |
112 | TAS_BUFFER_FNS(Escaped, escaped) | |
b3b94faa DT |
113 | |
114 | struct gfs2_bufdata { | |
115 | struct buffer_head *bd_bh; | |
116 | struct gfs2_glock *bd_gl; | |
117 | ||
82e86087 SW |
118 | union { |
119 | struct list_head list_tr; | |
120 | u64 blkno; | |
121 | } u; | |
122 | #define bd_list_tr u.list_tr | |
123 | #define bd_blkno u.blkno | |
124 | ||
b3b94faa DT |
125 | struct gfs2_log_element bd_le; |
126 | ||
127 | struct gfs2_ail *bd_ail; | |
128 | struct list_head bd_ail_st_list; | |
129 | struct list_head bd_ail_gl_list; | |
130 | }; | |
131 | ||
f057f6cd SW |
132 | /* |
133 | * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a | |
134 | * prefix of lock_dlm_ gets awkward. | |
135 | */ | |
136 | ||
137 | #define GDLM_STRNAME_BYTES 25 | |
138 | #define GDLM_LVB_SIZE 32 | |
139 | ||
140 | enum { | |
141 | DFL_BLOCK_LOCKS = 0, | |
142 | }; | |
143 | ||
144 | struct lm_lockname { | |
145 | u64 ln_number; | |
146 | unsigned int ln_type; | |
147 | }; | |
148 | ||
149 | #define lm_name_equal(name1, name2) \ | |
150 | (((name1)->ln_number == (name2)->ln_number) && \ | |
151 | ((name1)->ln_type == (name2)->ln_type)) | |
152 | ||
153 | ||
b3b94faa | 154 | struct gfs2_glock_operations { |
b5d32bea | 155 | void (*go_xmote_th) (struct gfs2_glock *gl); |
6802e340 | 156 | int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh); |
1a14d3a6 | 157 | void (*go_inval) (struct gfs2_glock *gl, int flags); |
97cc1025 | 158 | int (*go_demote_ok) (const struct gfs2_glock *gl); |
1a14d3a6 SW |
159 | int (*go_lock) (struct gfs2_holder *gh); |
160 | void (*go_unlock) (struct gfs2_holder *gh); | |
6802e340 | 161 | int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl); |
8fb4b536 | 162 | const int go_type; |
c4f68a13 | 163 | const unsigned long go_min_hold_time; |
b3b94faa DT |
164 | }; |
165 | ||
166 | enum { | |
b3b94faa | 167 | /* States */ |
6802e340 | 168 | HIF_HOLDER = 6, /* Set for gh that "holds" the glock */ |
b3b94faa | 169 | HIF_FIRST = 7, |
fee852e3 | 170 | HIF_WAIT = 10, |
b3b94faa DT |
171 | }; |
172 | ||
173 | struct gfs2_holder { | |
174 | struct list_head gh_list; | |
175 | ||
176 | struct gfs2_glock *gh_gl; | |
b1e058da | 177 | struct pid *gh_owner_pid; |
b3b94faa | 178 | unsigned int gh_state; |
fe1bdedc | 179 | unsigned gh_flags; |
b3b94faa DT |
180 | |
181 | int gh_error; | |
6802e340 | 182 | unsigned long gh_iflags; /* HIF_... */ |
d0dc80db | 183 | unsigned long gh_ip; |
b3b94faa DT |
184 | }; |
185 | ||
186 | enum { | |
6802e340 | 187 | GLF_LOCK = 1, |
6802e340 SW |
188 | GLF_DEMOTE = 3, |
189 | GLF_PENDING_DEMOTE = 4, | |
190 | GLF_DEMOTE_IN_PROGRESS = 5, | |
191 | GLF_DIRTY = 6, | |
192 | GLF_LFLUSH = 7, | |
193 | GLF_INVALIDATE_IN_PROGRESS = 8, | |
194 | GLF_REPLY_PENDING = 9, | |
f057f6cd SW |
195 | GLF_INITIAL = 10, |
196 | GLF_FROZEN = 11, | |
b3b94faa DT |
197 | }; |
198 | ||
199 | struct gfs2_glock { | |
b6397893 | 200 | struct hlist_node gl_list; |
b3b94faa DT |
201 | unsigned long gl_flags; /* GLF_... */ |
202 | struct lm_lockname gl_name; | |
16feb9fe | 203 | atomic_t gl_ref; |
b3b94faa DT |
204 | |
205 | spinlock_t gl_spin; | |
206 | ||
207 | unsigned int gl_state; | |
6802e340 SW |
208 | unsigned int gl_target; |
209 | unsigned int gl_reply; | |
37b2fa6a | 210 | unsigned int gl_hash; |
02ffad08 | 211 | unsigned int gl_req; |
3b8249f6 SW |
212 | unsigned int gl_demote_state; /* state requested by remote node */ |
213 | unsigned long gl_demote_time; /* time of first demote request */ | |
b3b94faa | 214 | struct list_head gl_holders; |
b3b94faa | 215 | |
8fb4b536 | 216 | const struct gfs2_glock_operations *gl_ops; |
f057f6cd SW |
217 | char gl_strname[GDLM_STRNAME_BYTES]; |
218 | struct dlm_lksb gl_lksb; | |
219 | char gl_lvb[32]; | |
c4f68a13 | 220 | unsigned long gl_tchange; |
b3b94faa DT |
221 | void *gl_object; |
222 | ||
97cc1025 | 223 | struct list_head gl_lru; |
b3b94faa DT |
224 | |
225 | struct gfs2_sbd *gl_sbd; | |
226 | ||
227 | struct inode *gl_aspace; | |
b3b94faa DT |
228 | struct list_head gl_ail_list; |
229 | atomic_t gl_ail_count; | |
c4f68a13 | 230 | struct delayed_work gl_work; |
b3b94faa DT |
231 | }; |
232 | ||
da755fdb SW |
233 | #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */ |
234 | ||
b3b94faa DT |
235 | struct gfs2_alloc { |
236 | /* Quota stuff */ | |
237 | ||
e9fc2aa0 SW |
238 | struct gfs2_quota_data *al_qd[2*MAXQUOTAS]; |
239 | struct gfs2_holder al_qd_ghs[2*MAXQUOTAS]; | |
6b61b072 | 240 | unsigned int al_qd_num; |
b3b94faa | 241 | |
6b61b072 SW |
242 | u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */ |
243 | u32 al_alloced; /* Filled in by gfs2_alloc_*() */ | |
b3b94faa DT |
244 | |
245 | /* Filled in by gfs2_inplace_reserve() */ | |
246 | ||
b3b94faa | 247 | unsigned int al_line; |
6b61b072 | 248 | char *al_file; |
b3b94faa DT |
249 | struct gfs2_holder al_ri_gh; |
250 | struct gfs2_holder al_rgd_gh; | |
251 | struct gfs2_rgrpd *al_rgd; | |
252 | ||
b3b94faa DT |
253 | }; |
254 | ||
255 | enum { | |
bfded27b | 256 | GIF_INVALID = 0, |
b3b94faa | 257 | GIF_QD_LOCKED = 1, |
b3b94faa | 258 | GIF_SW_PAGED = 3, |
091806ed | 259 | GIF_USER = 4, /* user inode, not metadata addr space */ |
b3b94faa DT |
260 | }; |
261 | ||
bb8d8a6f | 262 | |
b3b94faa | 263 | struct gfs2_inode { |
320dd101 | 264 | struct inode i_inode; |
dbb7cae2 SW |
265 | u64 i_no_addr; |
266 | u64 i_no_formal_ino; | |
bcf0b5b3 | 267 | u64 i_generation; |
3767ac21 | 268 | u64 i_eattr; |
c9e98886 | 269 | loff_t i_disksize; |
b3b94faa | 270 | unsigned long i_flags; /* GIF_... */ |
feaa7bba | 271 | struct gfs2_glock *i_gl; /* Move into i_gh? */ |
b3b94faa | 272 | struct gfs2_holder i_iopen_gh; |
f42faf4f | 273 | struct gfs2_holder i_gh; /* for prepare/commit_write only */ |
6dbd8224 | 274 | struct gfs2_alloc *i_alloc; |
ce276b06 | 275 | u64 i_goal; /* goal block for allocations */ |
b3b94faa | 276 | struct rw_semaphore i_rw_mutex; |
813e0c46 | 277 | struct list_head i_trunc_list; |
ad6203f2 | 278 | u32 i_entries; |
383f01fb | 279 | u32 i_diskflags; |
ecc30c79 | 280 | u8 i_height; |
9a004508 | 281 | u8 i_depth; |
b3b94faa DT |
282 | }; |
283 | ||
feaa7bba SW |
284 | /* |
285 | * Since i_inode is the first element of struct gfs2_inode, | |
286 | * this is effectively a cast. | |
287 | */ | |
320dd101 SW |
288 | static inline struct gfs2_inode *GFS2_I(struct inode *inode) |
289 | { | |
290 | return container_of(inode, struct gfs2_inode, i_inode); | |
291 | } | |
292 | ||
bf36a713 | 293 | static inline struct gfs2_sbd *GFS2_SB(const struct inode *inode) |
feaa7bba SW |
294 | { |
295 | return inode->i_sb->s_fs_info; | |
296 | } | |
297 | ||
b3b94faa | 298 | struct gfs2_file { |
f55ab26a | 299 | struct mutex f_fl_mutex; |
b3b94faa | 300 | struct gfs2_holder f_fl_gh; |
b3b94faa DT |
301 | }; |
302 | ||
b3b94faa DT |
303 | struct gfs2_revoke_replay { |
304 | struct list_head rr_list; | |
cd915493 | 305 | u64 rr_blkno; |
b3b94faa DT |
306 | unsigned int rr_where; |
307 | }; | |
308 | ||
b3b94faa DT |
309 | enum { |
310 | QDF_USER = 0, | |
311 | QDF_CHANGE = 1, | |
312 | QDF_LOCKED = 2, | |
313 | }; | |
314 | ||
315 | struct gfs2_quota_data { | |
316 | struct list_head qd_list; | |
0a7ab79c AD |
317 | struct list_head qd_reclaim; |
318 | ||
319 | atomic_t qd_count; | |
b3b94faa | 320 | |
cd915493 | 321 | u32 qd_id; |
b3b94faa DT |
322 | unsigned long qd_flags; /* QDF_... */ |
323 | ||
cd915493 SW |
324 | s64 qd_change; |
325 | s64 qd_change_sync; | |
b3b94faa DT |
326 | |
327 | unsigned int qd_slot; | |
328 | unsigned int qd_slot_count; | |
329 | ||
330 | struct buffer_head *qd_bh; | |
331 | struct gfs2_quota_change *qd_bh_qc; | |
332 | unsigned int qd_bh_count; | |
333 | ||
334 | struct gfs2_glock *qd_gl; | |
335 | struct gfs2_quota_lvb qd_qb; | |
336 | ||
cd915493 | 337 | u64 qd_sync_gen; |
b3b94faa | 338 | unsigned long qd_last_warn; |
b3b94faa DT |
339 | }; |
340 | ||
b3b94faa | 341 | struct gfs2_trans { |
d0dc80db | 342 | unsigned long tr_ip; |
b3b94faa DT |
343 | |
344 | unsigned int tr_blocks; | |
345 | unsigned int tr_revokes; | |
346 | unsigned int tr_reserved; | |
347 | ||
e317ffcb | 348 | struct gfs2_holder tr_t_gh; |
b3b94faa DT |
349 | |
350 | int tr_touched; | |
351 | ||
352 | unsigned int tr_num_buf; | |
353 | unsigned int tr_num_buf_new; | |
2332c443 | 354 | unsigned int tr_num_databuf_new; |
b3b94faa | 355 | unsigned int tr_num_buf_rm; |
2332c443 | 356 | unsigned int tr_num_databuf_rm; |
b3b94faa DT |
357 | struct list_head tr_list_buf; |
358 | ||
359 | unsigned int tr_num_revoke; | |
360 | unsigned int tr_num_revoke_rm; | |
361 | }; | |
362 | ||
363 | struct gfs2_ail { | |
364 | struct list_head ai_list; | |
365 | ||
366 | unsigned int ai_first; | |
367 | struct list_head ai_ail1_list; | |
368 | struct list_head ai_ail2_list; | |
369 | ||
cd915493 | 370 | u64 ai_sync_gen; |
b3b94faa DT |
371 | }; |
372 | ||
da6dd40d BP |
373 | struct gfs2_journal_extent { |
374 | struct list_head extent_list; | |
375 | ||
376 | unsigned int lblock; /* First logical block */ | |
377 | u64 dblock; /* First disk block */ | |
378 | u64 blocks; | |
379 | }; | |
380 | ||
b3b94faa DT |
381 | struct gfs2_jdesc { |
382 | struct list_head jd_list; | |
da6dd40d | 383 | struct list_head extent_list; |
fe64d517 | 384 | struct slow_work jd_work; |
7359a19c | 385 | struct inode *jd_inode; |
fe64d517 SW |
386 | unsigned long jd_flags; |
387 | #define JDF_RECOVERY 1 | |
b3b94faa | 388 | unsigned int jd_jid; |
b3b94faa DT |
389 | unsigned int jd_blocks; |
390 | }; | |
391 | ||
bb8d8a6f SW |
392 | struct gfs2_statfs_change_host { |
393 | s64 sc_total; | |
394 | s64 sc_free; | |
395 | s64 sc_dinodes; | |
396 | }; | |
397 | ||
b3b94faa DT |
398 | #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF |
399 | #define GFS2_QUOTA_OFF 0 | |
400 | #define GFS2_QUOTA_ACCOUNT 1 | |
401 | #define GFS2_QUOTA_ON 2 | |
402 | ||
403 | #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED | |
404 | #define GFS2_DATA_WRITEBACK 1 | |
405 | #define GFS2_DATA_ORDERED 2 | |
406 | ||
407 | struct gfs2_args { | |
37ec89e8 SW |
408 | char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */ |
409 | char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */ | |
410 | char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */ | |
411 | unsigned int ar_spectator:1; /* Don't get a journal */ | |
412 | unsigned int ar_ignore_local_fs:1; /* Ignore optimisations */ | |
413 | unsigned int ar_localflocks:1; /* Let the VFS do flock|fcntl */ | |
414 | unsigned int ar_localcaching:1; /* Local caching */ | |
415 | unsigned int ar_debug:1; /* Oops on errors */ | |
416 | unsigned int ar_upgrade:1; /* Upgrade ondisk format */ | |
417 | unsigned int ar_posix_acl:1; /* Enable posix acls */ | |
418 | unsigned int ar_quota:2; /* off/account/on */ | |
419 | unsigned int ar_suiddir:1; /* suiddir support */ | |
420 | unsigned int ar_data:2; /* ordered/writeback */ | |
421 | unsigned int ar_meta:1; /* mount metafs */ | |
f15ab561 | 422 | unsigned int ar_discard:1; /* discard requests */ |
48c2b613 | 423 | int ar_commit; /* Commit interval */ |
b3b94faa DT |
424 | }; |
425 | ||
426 | struct gfs2_tune { | |
427 | spinlock_t gt_spin; | |
428 | ||
b3b94faa DT |
429 | unsigned int gt_incore_log_blocks; |
430 | unsigned int gt_log_flush_secs; | |
b3b94faa | 431 | |
b3b94faa | 432 | unsigned int gt_logd_secs; |
b3b94faa DT |
433 | |
434 | unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */ | |
435 | unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */ | |
436 | unsigned int gt_quota_scale_num; /* Numerator */ | |
437 | unsigned int gt_quota_scale_den; /* Denominator */ | |
b3b94faa | 438 | unsigned int gt_quota_quantum; /* Secs between syncs to quota file */ |
b3b94faa | 439 | unsigned int gt_new_files_jdata; |
b3b94faa | 440 | unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */ |
b3b94faa DT |
441 | unsigned int gt_stall_secs; /* Detects trouble! */ |
442 | unsigned int gt_complain_secs; | |
b3b94faa DT |
443 | unsigned int gt_statfs_quantum; |
444 | unsigned int gt_statfs_slow; | |
445 | }; | |
446 | ||
b3b94faa DT |
447 | enum { |
448 | SDF_JOURNAL_CHECKED = 0, | |
449 | SDF_JOURNAL_LIVE = 1, | |
450 | SDF_SHUTDOWN = 2, | |
254db57f | 451 | SDF_NOBARRIERS = 3, |
fe64d517 | 452 | SDF_NORECOVERY = 4, |
b3b94faa DT |
453 | }; |
454 | ||
b3b94faa DT |
455 | #define GFS2_FSNAME_LEN 256 |
456 | ||
bb8d8a6f SW |
457 | struct gfs2_inum_host { |
458 | u64 no_formal_ino; | |
459 | u64 no_addr; | |
460 | }; | |
461 | ||
462 | struct gfs2_sb_host { | |
463 | u32 sb_magic; | |
464 | u32 sb_type; | |
465 | u32 sb_format; | |
466 | ||
467 | u32 sb_fs_format; | |
468 | u32 sb_multihost_format; | |
469 | u32 sb_bsize; | |
470 | u32 sb_bsize_shift; | |
471 | ||
472 | struct gfs2_inum_host sb_master_dir; | |
473 | struct gfs2_inum_host sb_root_dir; | |
474 | ||
475 | char sb_lockproto[GFS2_LOCKNAME_LEN]; | |
476 | char sb_locktable[GFS2_LOCKNAME_LEN]; | |
02e3cc70 | 477 | u8 sb_uuid[16]; |
bb8d8a6f SW |
478 | }; |
479 | ||
f057f6cd SW |
480 | /* |
481 | * lm_mount() return values | |
482 | * | |
483 | * ls_jid - the journal ID this node should use | |
484 | * ls_first - this node is the first to mount the file system | |
485 | * ls_lockspace - lock module's context for this file system | |
486 | * ls_ops - lock module's functions | |
487 | */ | |
488 | ||
489 | struct lm_lockstruct { | |
490 | u32 ls_id; | |
491 | unsigned int ls_jid; | |
492 | unsigned int ls_first; | |
493 | unsigned int ls_first_done; | |
494 | unsigned int ls_nodir; | |
495 | const struct lm_lockops *ls_ops; | |
496 | unsigned long ls_flags; | |
497 | dlm_lockspace_t *ls_dlm; | |
498 | ||
f057f6cd SW |
499 | int ls_recover_jid_done; |
500 | int ls_recover_jid_status; | |
501 | }; | |
502 | ||
b3b94faa DT |
503 | struct gfs2_sbd { |
504 | struct super_block *sd_vfs; | |
505 | struct kobject sd_kobj; | |
506 | unsigned long sd_flags; /* SDF_... */ | |
f50dfaf7 | 507 | struct gfs2_sb_host sd_sb; |
b3b94faa DT |
508 | |
509 | /* Constants computed on mount */ | |
510 | ||
cd915493 SW |
511 | u32 sd_fsb2bb; |
512 | u32 sd_fsb2bb_shift; | |
513 | u32 sd_diptrs; /* Number of pointers in a dinode */ | |
514 | u32 sd_inptrs; /* Number of pointers in a indirect block */ | |
515 | u32 sd_jbsize; /* Size of a journaled data block */ | |
516 | u32 sd_hash_bsize; /* sizeof(exhash block) */ | |
517 | u32 sd_hash_bsize_shift; | |
518 | u32 sd_hash_ptrs; /* Number of pointers in a hash block */ | |
519 | u32 sd_qc_per_block; | |
520 | u32 sd_max_dirres; /* Max blocks needed to add a directory entry */ | |
521 | u32 sd_max_height; /* Max height of a file's metadata tree */ | |
ecc30c79 | 522 | u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1]; |
cd915493 | 523 | u32 sd_max_jheight; /* Max height of journaled file's meta tree */ |
ecc30c79 | 524 | u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1]; |
b3b94faa DT |
525 | |
526 | struct gfs2_args sd_args; /* Mount arguments */ | |
527 | struct gfs2_tune sd_tune; /* Filesystem tuning structure */ | |
528 | ||
529 | /* Lock Stuff */ | |
530 | ||
531 | struct lm_lockstruct sd_lockstruct; | |
b3b94faa DT |
532 | struct gfs2_holder sd_live_gh; |
533 | struct gfs2_glock *sd_rename_gl; | |
534 | struct gfs2_glock *sd_trans_gl; | |
b3b94faa DT |
535 | |
536 | /* Inode Stuff */ | |
537 | ||
9b8df98f SW |
538 | struct dentry *sd_master_dir; |
539 | struct dentry *sd_root_dir; | |
540 | ||
f42faf4f SW |
541 | struct inode *sd_jindex; |
542 | struct inode *sd_inum_inode; | |
543 | struct inode *sd_statfs_inode; | |
544 | struct inode *sd_ir_inode; | |
545 | struct inode *sd_sc_inode; | |
f42faf4f SW |
546 | struct inode *sd_qc_inode; |
547 | struct inode *sd_rindex; | |
548 | struct inode *sd_quota_inode; | |
b3b94faa DT |
549 | |
550 | /* Inum stuff */ | |
551 | ||
f55ab26a | 552 | struct mutex sd_inum_mutex; |
b3b94faa DT |
553 | |
554 | /* StatFS stuff */ | |
555 | ||
556 | spinlock_t sd_statfs_spin; | |
bd209cc0 AV |
557 | struct gfs2_statfs_change_host sd_statfs_master; |
558 | struct gfs2_statfs_change_host sd_statfs_local; | |
b3b94faa DT |
559 | |
560 | /* Resource group stuff */ | |
561 | ||
cf45b752 | 562 | int sd_rindex_uptodate; |
b3b94faa | 563 | spinlock_t sd_rindex_spin; |
f55ab26a | 564 | struct mutex sd_rindex_mutex; |
b3b94faa DT |
565 | struct list_head sd_rindex_list; |
566 | struct list_head sd_rindex_mru_list; | |
b3b94faa DT |
567 | struct gfs2_rgrpd *sd_rindex_forward; |
568 | unsigned int sd_rgrps; | |
569 | ||
570 | /* Journal index stuff */ | |
571 | ||
572 | struct list_head sd_jindex_list; | |
573 | spinlock_t sd_jindex_spin; | |
f55ab26a | 574 | struct mutex sd_jindex_mutex; |
b3b94faa | 575 | unsigned int sd_journals; |
b3b94faa DT |
576 | |
577 | struct gfs2_jdesc *sd_jdesc; | |
578 | struct gfs2_holder sd_journal_gh; | |
579 | struct gfs2_holder sd_jinode_gh; | |
580 | ||
581 | struct gfs2_holder sd_ir_gh; | |
582 | struct gfs2_holder sd_sc_gh; | |
b3b94faa DT |
583 | struct gfs2_holder sd_qc_gh; |
584 | ||
585 | /* Daemon stuff */ | |
586 | ||
b3b94faa DT |
587 | struct task_struct *sd_logd_process; |
588 | struct task_struct *sd_quotad_process; | |
b3b94faa | 589 | |
b3b94faa DT |
590 | /* Quota stuff */ |
591 | ||
592 | struct list_head sd_quota_list; | |
593 | atomic_t sd_quota_count; | |
f55ab26a | 594 | struct mutex sd_quota_mutex; |
37b2c837 | 595 | wait_queue_head_t sd_quota_wait; |
813e0c46 SW |
596 | struct list_head sd_trunc_list; |
597 | spinlock_t sd_trunc_lock; | |
b3b94faa DT |
598 | |
599 | unsigned int sd_quota_slots; | |
600 | unsigned int sd_quota_chunks; | |
601 | unsigned char **sd_quota_bitmap; | |
602 | ||
cd915493 | 603 | u64 sd_quota_sync_gen; |
b3b94faa DT |
604 | |
605 | /* Log stuff */ | |
606 | ||
607 | spinlock_t sd_log_lock; | |
b3b94faa DT |
608 | |
609 | unsigned int sd_log_blks_reserved; | |
610 | unsigned int sd_log_commited_buf; | |
2332c443 | 611 | unsigned int sd_log_commited_databuf; |
b3b94faa DT |
612 | unsigned int sd_log_commited_revoke; |
613 | ||
b3b94faa DT |
614 | unsigned int sd_log_num_buf; |
615 | unsigned int sd_log_num_revoke; | |
616 | unsigned int sd_log_num_rg; | |
617 | unsigned int sd_log_num_databuf; | |
f42faf4f | 618 | |
b3b94faa DT |
619 | struct list_head sd_log_le_buf; |
620 | struct list_head sd_log_le_revoke; | |
621 | struct list_head sd_log_le_rg; | |
622 | struct list_head sd_log_le_databuf; | |
d7b616e2 | 623 | struct list_head sd_log_le_ordered; |
b3b94faa | 624 | |
fd041f0b | 625 | atomic_t sd_log_blks_free; |
71b86f56 | 626 | struct mutex sd_log_reserve_mutex; |
b3b94faa | 627 | |
cd915493 | 628 | u64 sd_log_sequence; |
b3b94faa DT |
629 | unsigned int sd_log_head; |
630 | unsigned int sd_log_tail; | |
b3b94faa DT |
631 | int sd_log_idle; |
632 | ||
633 | unsigned long sd_log_flush_time; | |
484adff8 | 634 | struct rw_semaphore sd_log_flush_lock; |
16615be1 SW |
635 | atomic_t sd_log_in_flight; |
636 | wait_queue_head_t sd_log_flush_wait; | |
b3b94faa DT |
637 | |
638 | unsigned int sd_log_flush_head; | |
cd915493 | 639 | u64 sd_log_flush_wrapped; |
b3b94faa DT |
640 | |
641 | struct list_head sd_ail1_list; | |
642 | struct list_head sd_ail2_list; | |
cd915493 | 643 | u64 sd_ail_sync_gen; |
b3b94faa DT |
644 | |
645 | /* Replay stuff */ | |
646 | ||
647 | struct list_head sd_revoke_list; | |
648 | unsigned int sd_replay_tail; | |
649 | ||
650 | unsigned int sd_found_blocks; | |
651 | unsigned int sd_found_revokes; | |
652 | unsigned int sd_replayed_blocks; | |
653 | ||
654 | /* For quiescing the filesystem */ | |
655 | ||
656 | struct gfs2_holder sd_freeze_gh; | |
f55ab26a | 657 | struct mutex sd_freeze_lock; |
b3b94faa DT |
658 | unsigned int sd_freeze_count; |
659 | ||
b3b94faa DT |
660 | char sd_fsname[GFS2_FSNAME_LEN]; |
661 | char sd_table_name[GFS2_FSNAME_LEN]; | |
662 | char sd_proto_name[GFS2_FSNAME_LEN]; | |
663 | ||
664 | /* Debugging crud */ | |
665 | ||
666 | unsigned long sd_last_warning; | |
5f882096 RP |
667 | struct dentry *debugfs_dir; /* debugfs directory */ |
668 | struct dentry *debugfs_dentry_glocks; /* for debugfs */ | |
b3b94faa DT |
669 | }; |
670 | ||
671 | #endif /* __INCORE_DOT_H__ */ | |
672 |