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> |
57cc7215 | 14 | #include <linux/kobject.h> |
c4f68a13 | 15 | #include <linux/workqueue.h> |
f057f6cd SW |
16 | #include <linux/dlm.h> |
17 | #include <linux/buffer_head.h> | |
bc015cb8 SW |
18 | #include <linux/rcupdate.h> |
19 | #include <linux/rculist_bl.h> | |
f2f7ba52 | 20 | |
b3b94faa DT |
21 | #define DIO_WAIT 0x00000010 |
22 | #define DIO_METADATA 0x00000020 | |
b3b94faa DT |
23 | #define DIO_ALL 0x00000100 |
24 | ||
25 | struct gfs2_log_operations; | |
26 | struct gfs2_log_element; | |
b3b94faa DT |
27 | struct gfs2_holder; |
28 | struct gfs2_glock; | |
b3b94faa | 29 | struct gfs2_quota_data; |
b3b94faa DT |
30 | struct gfs2_trans; |
31 | struct gfs2_ail; | |
32 | struct gfs2_jdesc; | |
b3b94faa | 33 | struct gfs2_sbd; |
f057f6cd | 34 | struct lm_lockops; |
b3b94faa DT |
35 | |
36 | typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret); | |
37 | ||
bb8d8a6f SW |
38 | struct gfs2_log_header_host { |
39 | u64 lh_sequence; /* Sequence number of this transaction */ | |
40 | u32 lh_flags; /* GFS2_LOG_HEAD_... */ | |
41 | u32 lh_tail; /* Block number of log tail */ | |
42 | u32 lh_blkno; | |
43 | u32 lh_hash; | |
44 | }; | |
45 | ||
b3b94faa DT |
46 | /* |
47 | * Structure of operations that are associated with each | |
48 | * type of element in the log. | |
49 | */ | |
50 | ||
51 | struct gfs2_log_operations { | |
52 | void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le); | |
b3b94faa DT |
53 | void (*lo_before_commit) (struct gfs2_sbd *sdp); |
54 | void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai); | |
55 | void (*lo_before_scan) (struct gfs2_jdesc *jd, | |
55167622 | 56 | struct gfs2_log_header_host *head, int pass); |
b3b94faa DT |
57 | int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start, |
58 | struct gfs2_log_descriptor *ld, __be64 *ptr, | |
59 | int pass); | |
60 | void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass); | |
b09e593d | 61 | const char *lo_name; |
b3b94faa DT |
62 | }; |
63 | ||
64 | struct gfs2_log_element { | |
65 | struct list_head le_list; | |
b09e593d | 66 | const struct gfs2_log_operations *le_ops; |
b3b94faa DT |
67 | }; |
68 | ||
60a0b8f9 SW |
69 | #define GBF_FULL 1 |
70 | ||
b3b94faa DT |
71 | struct gfs2_bitmap { |
72 | struct buffer_head *bi_bh; | |
73 | char *bi_clone; | |
60a0b8f9 | 74 | unsigned long bi_flags; |
cd915493 SW |
75 | u32 bi_offset; |
76 | u32 bi_start; | |
77 | u32 bi_len; | |
b3b94faa DT |
78 | }; |
79 | ||
80 | struct gfs2_rgrpd { | |
81 | struct list_head rd_list; /* Link with superblock */ | |
82 | struct list_head rd_list_mru; | |
b3b94faa | 83 | struct gfs2_glock *rd_gl; /* Glock for this rgrp */ |
bb8d8a6f SW |
84 | u64 rd_addr; /* grp block disk address */ |
85 | u64 rd_data0; /* first data location */ | |
86 | u32 rd_length; /* length of rgrp header in fs blocks */ | |
87 | u32 rd_data; /* num of data blocks in rgrp */ | |
88 | u32 rd_bitbytes; /* number of bytes in data bitmaps */ | |
cfc8b549 | 89 | u32 rd_free; |
73f74948 SW |
90 | u32 rd_free_clone; |
91 | u32 rd_dinodes; | |
d8b71f73 | 92 | u64 rd_igeneration; |
b3b94faa | 93 | struct gfs2_bitmap *rd_bits; |
f55ab26a | 94 | struct mutex rd_mutex; |
b3b94faa | 95 | struct gfs2_log_element rd_le; |
b3b94faa | 96 | struct gfs2_sbd *rd_sbd; |
73f74948 SW |
97 | unsigned int rd_bh_count; |
98 | u32 rd_last_alloc; | |
1ce97e56 | 99 | u32 rd_flags; |
09010978 SW |
100 | #define GFS2_RDF_CHECK 0x10000000 /* check for unlinked inodes */ |
101 | #define GFS2_RDF_UPTODATE 0x20000000 /* rg is up to date */ | |
102 | #define GFS2_RDF_ERROR 0x40000000 /* error in rg */ | |
103 | #define GFS2_RDF_MASK 0xf0000000 /* mask for internal flags */ | |
b3b94faa DT |
104 | }; |
105 | ||
106 | enum gfs2_state_bits { | |
107 | BH_Pinned = BH_PrivateStart, | |
f42faf4f | 108 | BH_Escaped = BH_PrivateStart + 1, |
b3b94faa DT |
109 | }; |
110 | ||
111 | BUFFER_FNS(Pinned, pinned) | |
112 | TAS_BUFFER_FNS(Pinned, pinned) | |
f42faf4f SW |
113 | BUFFER_FNS(Escaped, escaped) |
114 | TAS_BUFFER_FNS(Escaped, escaped) | |
b3b94faa DT |
115 | |
116 | struct gfs2_bufdata { | |
117 | struct buffer_head *bd_bh; | |
118 | struct gfs2_glock *bd_gl; | |
119 | ||
82e86087 SW |
120 | union { |
121 | struct list_head list_tr; | |
122 | u64 blkno; | |
123 | } u; | |
124 | #define bd_list_tr u.list_tr | |
125 | #define bd_blkno u.blkno | |
126 | ||
b3b94faa DT |
127 | struct gfs2_log_element bd_le; |
128 | ||
129 | struct gfs2_ail *bd_ail; | |
130 | struct list_head bd_ail_st_list; | |
131 | struct list_head bd_ail_gl_list; | |
132 | }; | |
133 | ||
f057f6cd SW |
134 | /* |
135 | * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a | |
136 | * prefix of lock_dlm_ gets awkward. | |
137 | */ | |
138 | ||
139 | #define GDLM_STRNAME_BYTES 25 | |
140 | #define GDLM_LVB_SIZE 32 | |
141 | ||
142 | enum { | |
143 | DFL_BLOCK_LOCKS = 0, | |
144 | }; | |
145 | ||
146 | struct lm_lockname { | |
147 | u64 ln_number; | |
148 | unsigned int ln_type; | |
149 | }; | |
150 | ||
151 | #define lm_name_equal(name1, name2) \ | |
152 | (((name1)->ln_number == (name2)->ln_number) && \ | |
153 | ((name1)->ln_type == (name2)->ln_type)) | |
154 | ||
155 | ||
b3b94faa | 156 | struct gfs2_glock_operations { |
b5d32bea | 157 | void (*go_xmote_th) (struct gfs2_glock *gl); |
6802e340 | 158 | int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh); |
1a14d3a6 | 159 | void (*go_inval) (struct gfs2_glock *gl, int flags); |
97cc1025 | 160 | int (*go_demote_ok) (const struct gfs2_glock *gl); |
1a14d3a6 SW |
161 | int (*go_lock) (struct gfs2_holder *gh); |
162 | void (*go_unlock) (struct gfs2_holder *gh); | |
6802e340 | 163 | int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl); |
b94a170e | 164 | void (*go_callback) (struct gfs2_glock *gl); |
8fb4b536 | 165 | const int go_type; |
c4f68a13 | 166 | const unsigned long go_min_hold_time; |
009d8518 SW |
167 | const unsigned long go_flags; |
168 | #define GLOF_ASPACE 1 | |
b3b94faa DT |
169 | }; |
170 | ||
171 | enum { | |
b3b94faa | 172 | /* States */ |
6802e340 | 173 | HIF_HOLDER = 6, /* Set for gh that "holds" the glock */ |
b3b94faa | 174 | HIF_FIRST = 7, |
fee852e3 | 175 | HIF_WAIT = 10, |
b3b94faa DT |
176 | }; |
177 | ||
178 | struct gfs2_holder { | |
179 | struct list_head gh_list; | |
180 | ||
181 | struct gfs2_glock *gh_gl; | |
b1e058da | 182 | struct pid *gh_owner_pid; |
b3b94faa | 183 | unsigned int gh_state; |
fe1bdedc | 184 | unsigned gh_flags; |
b3b94faa DT |
185 | |
186 | int gh_error; | |
6802e340 | 187 | unsigned long gh_iflags; /* HIF_... */ |
d0dc80db | 188 | unsigned long gh_ip; |
b3b94faa DT |
189 | }; |
190 | ||
191 | enum { | |
6802e340 | 192 | GLF_LOCK = 1, |
6802e340 SW |
193 | GLF_DEMOTE = 3, |
194 | GLF_PENDING_DEMOTE = 4, | |
195 | GLF_DEMOTE_IN_PROGRESS = 5, | |
196 | GLF_DIRTY = 6, | |
197 | GLF_LFLUSH = 7, | |
198 | GLF_INVALIDATE_IN_PROGRESS = 8, | |
199 | GLF_REPLY_PENDING = 9, | |
f057f6cd SW |
200 | GLF_INITIAL = 10, |
201 | GLF_FROZEN = 11, | |
7b5e3d5f | 202 | GLF_QUEUED = 12, |
b3b94faa DT |
203 | }; |
204 | ||
205 | struct gfs2_glock { | |
bc015cb8 | 206 | struct hlist_bl_node gl_list; |
b3b94faa DT |
207 | unsigned long gl_flags; /* GLF_... */ |
208 | struct lm_lockname gl_name; | |
16feb9fe | 209 | atomic_t gl_ref; |
b3b94faa DT |
210 | |
211 | spinlock_t gl_spin; | |
212 | ||
47a25380 SW |
213 | /* State fields protected by gl_spin */ |
214 | unsigned int gl_state:2, /* Current state */ | |
215 | gl_target:2, /* Target state */ | |
216 | gl_demote_state:2, /* State requested by remote node */ | |
217 | gl_req:2, /* State in last dlm request */ | |
218 | gl_reply:8; /* Last reply from the dlm */ | |
219 | ||
37b2fa6a | 220 | unsigned int gl_hash; |
3b8249f6 | 221 | unsigned long gl_demote_time; /* time of first demote request */ |
b3b94faa | 222 | struct list_head gl_holders; |
b3b94faa | 223 | |
8fb4b536 | 224 | const struct gfs2_glock_operations *gl_ops; |
f057f6cd SW |
225 | char gl_strname[GDLM_STRNAME_BYTES]; |
226 | struct dlm_lksb gl_lksb; | |
227 | char gl_lvb[32]; | |
c4f68a13 | 228 | unsigned long gl_tchange; |
b3b94faa DT |
229 | void *gl_object; |
230 | ||
97cc1025 | 231 | struct list_head gl_lru; |
b3b94faa DT |
232 | |
233 | struct gfs2_sbd *gl_sbd; | |
234 | ||
b3b94faa DT |
235 | struct list_head gl_ail_list; |
236 | atomic_t gl_ail_count; | |
c4f68a13 | 237 | struct delayed_work gl_work; |
b94a170e | 238 | struct work_struct gl_delete; |
bc015cb8 | 239 | struct rcu_head gl_rcu; |
b3b94faa DT |
240 | }; |
241 | ||
da755fdb SW |
242 | #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */ |
243 | ||
b3b94faa DT |
244 | struct gfs2_alloc { |
245 | /* Quota stuff */ | |
246 | ||
e9fc2aa0 SW |
247 | struct gfs2_quota_data *al_qd[2*MAXQUOTAS]; |
248 | struct gfs2_holder al_qd_ghs[2*MAXQUOTAS]; | |
6b61b072 | 249 | unsigned int al_qd_num; |
b3b94faa | 250 | |
6b61b072 SW |
251 | u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */ |
252 | u32 al_alloced; /* Filled in by gfs2_alloc_*() */ | |
b3b94faa DT |
253 | |
254 | /* Filled in by gfs2_inplace_reserve() */ | |
255 | ||
b3b94faa | 256 | unsigned int al_line; |
6b61b072 | 257 | char *al_file; |
b3b94faa DT |
258 | struct gfs2_holder al_ri_gh; |
259 | struct gfs2_holder al_rgd_gh; | |
260 | struct gfs2_rgrpd *al_rgd; | |
261 | ||
b3b94faa DT |
262 | }; |
263 | ||
264 | enum { | |
bfded27b | 265 | GIF_INVALID = 0, |
b3b94faa | 266 | GIF_QD_LOCKED = 1, |
b3b94faa DT |
267 | GIF_SW_PAGED = 3, |
268 | }; | |
269 | ||
bb8d8a6f | 270 | |
b3b94faa | 271 | struct gfs2_inode { |
320dd101 | 272 | struct inode i_inode; |
dbb7cae2 SW |
273 | u64 i_no_addr; |
274 | u64 i_no_formal_ino; | |
bcf0b5b3 | 275 | u64 i_generation; |
3767ac21 | 276 | u64 i_eattr; |
b3b94faa | 277 | unsigned long i_flags; /* GIF_... */ |
feaa7bba | 278 | struct gfs2_glock *i_gl; /* Move into i_gh? */ |
b3b94faa | 279 | struct gfs2_holder i_iopen_gh; |
f42faf4f | 280 | struct gfs2_holder i_gh; /* for prepare/commit_write only */ |
6dbd8224 | 281 | struct gfs2_alloc *i_alloc; |
ce276b06 | 282 | u64 i_goal; /* goal block for allocations */ |
b3b94faa | 283 | struct rw_semaphore i_rw_mutex; |
813e0c46 | 284 | struct list_head i_trunc_list; |
ad6203f2 | 285 | u32 i_entries; |
383f01fb | 286 | u32 i_diskflags; |
ecc30c79 | 287 | u8 i_height; |
9a004508 | 288 | u8 i_depth; |
b3b94faa DT |
289 | }; |
290 | ||
feaa7bba SW |
291 | /* |
292 | * Since i_inode is the first element of struct gfs2_inode, | |
293 | * this is effectively a cast. | |
294 | */ | |
320dd101 SW |
295 | static inline struct gfs2_inode *GFS2_I(struct inode *inode) |
296 | { | |
297 | return container_of(inode, struct gfs2_inode, i_inode); | |
298 | } | |
299 | ||
bf36a713 | 300 | static inline struct gfs2_sbd *GFS2_SB(const struct inode *inode) |
feaa7bba SW |
301 | { |
302 | return inode->i_sb->s_fs_info; | |
303 | } | |
304 | ||
b3b94faa | 305 | struct gfs2_file { |
f55ab26a | 306 | struct mutex f_fl_mutex; |
b3b94faa | 307 | struct gfs2_holder f_fl_gh; |
b3b94faa DT |
308 | }; |
309 | ||
b3b94faa DT |
310 | struct gfs2_revoke_replay { |
311 | struct list_head rr_list; | |
cd915493 | 312 | u64 rr_blkno; |
b3b94faa DT |
313 | unsigned int rr_where; |
314 | }; | |
315 | ||
b3b94faa DT |
316 | enum { |
317 | QDF_USER = 0, | |
318 | QDF_CHANGE = 1, | |
319 | QDF_LOCKED = 2, | |
662e3a55 | 320 | QDF_REFRESH = 3, |
b3b94faa DT |
321 | }; |
322 | ||
323 | struct gfs2_quota_data { | |
324 | struct list_head qd_list; | |
0a7ab79c AD |
325 | struct list_head qd_reclaim; |
326 | ||
327 | atomic_t qd_count; | |
b3b94faa | 328 | |
cd915493 | 329 | u32 qd_id; |
b3b94faa DT |
330 | unsigned long qd_flags; /* QDF_... */ |
331 | ||
cd915493 SW |
332 | s64 qd_change; |
333 | s64 qd_change_sync; | |
b3b94faa DT |
334 | |
335 | unsigned int qd_slot; | |
336 | unsigned int qd_slot_count; | |
337 | ||
338 | struct buffer_head *qd_bh; | |
339 | struct gfs2_quota_change *qd_bh_qc; | |
340 | unsigned int qd_bh_count; | |
341 | ||
342 | struct gfs2_glock *qd_gl; | |
343 | struct gfs2_quota_lvb qd_qb; | |
344 | ||
cd915493 | 345 | u64 qd_sync_gen; |
b3b94faa | 346 | unsigned long qd_last_warn; |
b3b94faa DT |
347 | }; |
348 | ||
b3b94faa | 349 | struct gfs2_trans { |
d0dc80db | 350 | unsigned long tr_ip; |
b3b94faa DT |
351 | |
352 | unsigned int tr_blocks; | |
353 | unsigned int tr_revokes; | |
354 | unsigned int tr_reserved; | |
355 | ||
e317ffcb | 356 | struct gfs2_holder tr_t_gh; |
b3b94faa DT |
357 | |
358 | int tr_touched; | |
359 | ||
360 | unsigned int tr_num_buf; | |
361 | unsigned int tr_num_buf_new; | |
2332c443 | 362 | unsigned int tr_num_databuf_new; |
b3b94faa | 363 | unsigned int tr_num_buf_rm; |
2332c443 | 364 | unsigned int tr_num_databuf_rm; |
b3b94faa DT |
365 | struct list_head tr_list_buf; |
366 | ||
367 | unsigned int tr_num_revoke; | |
368 | unsigned int tr_num_revoke_rm; | |
369 | }; | |
370 | ||
371 | struct gfs2_ail { | |
372 | struct list_head ai_list; | |
373 | ||
374 | unsigned int ai_first; | |
375 | struct list_head ai_ail1_list; | |
376 | struct list_head ai_ail2_list; | |
377 | ||
cd915493 | 378 | u64 ai_sync_gen; |
b3b94faa DT |
379 | }; |
380 | ||
da6dd40d BP |
381 | struct gfs2_journal_extent { |
382 | struct list_head extent_list; | |
383 | ||
384 | unsigned int lblock; /* First logical block */ | |
385 | u64 dblock; /* First disk block */ | |
386 | u64 blocks; | |
387 | }; | |
388 | ||
b3b94faa DT |
389 | struct gfs2_jdesc { |
390 | struct list_head jd_list; | |
da6dd40d | 391 | struct list_head extent_list; |
6ecd7c2d | 392 | struct work_struct jd_work; |
7359a19c | 393 | struct inode *jd_inode; |
fe64d517 SW |
394 | unsigned long jd_flags; |
395 | #define JDF_RECOVERY 1 | |
b3b94faa | 396 | unsigned int jd_jid; |
b3b94faa DT |
397 | unsigned int jd_blocks; |
398 | }; | |
399 | ||
bb8d8a6f SW |
400 | struct gfs2_statfs_change_host { |
401 | s64 sc_total; | |
402 | s64 sc_free; | |
403 | s64 sc_dinodes; | |
404 | }; | |
405 | ||
b3b94faa DT |
406 | #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF |
407 | #define GFS2_QUOTA_OFF 0 | |
408 | #define GFS2_QUOTA_ACCOUNT 1 | |
409 | #define GFS2_QUOTA_ON 2 | |
410 | ||
411 | #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED | |
412 | #define GFS2_DATA_WRITEBACK 1 | |
413 | #define GFS2_DATA_ORDERED 2 | |
414 | ||
d34843d0 BP |
415 | #define GFS2_ERRORS_DEFAULT GFS2_ERRORS_WITHDRAW |
416 | #define GFS2_ERRORS_WITHDRAW 0 | |
417 | #define GFS2_ERRORS_CONTINUE 1 /* place holder for future feature */ | |
418 | #define GFS2_ERRORS_RO 2 /* place holder for future feature */ | |
419 | #define GFS2_ERRORS_PANIC 3 | |
420 | ||
b3b94faa | 421 | struct gfs2_args { |
37ec89e8 SW |
422 | char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */ |
423 | char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */ | |
424 | char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */ | |
425 | unsigned int ar_spectator:1; /* Don't get a journal */ | |
37ec89e8 | 426 | unsigned int ar_localflocks:1; /* Let the VFS do flock|fcntl */ |
37ec89e8 | 427 | unsigned int ar_debug:1; /* Oops on errors */ |
37ec89e8 SW |
428 | unsigned int ar_posix_acl:1; /* Enable posix acls */ |
429 | unsigned int ar_quota:2; /* off/account/on */ | |
430 | unsigned int ar_suiddir:1; /* suiddir support */ | |
431 | unsigned int ar_data:2; /* ordered/writeback */ | |
432 | unsigned int ar_meta:1; /* mount metafs */ | |
f15ab561 | 433 | unsigned int ar_discard:1; /* discard requests */ |
d34843d0 | 434 | unsigned int ar_errors:2; /* errors=withdraw | panic */ |
f25934c5 | 435 | unsigned int ar_nobarrier:1; /* do not send barriers */ |
48c2b613 | 436 | int ar_commit; /* Commit interval */ |
3d3c10f2 BM |
437 | int ar_statfs_quantum; /* The fast statfs interval */ |
438 | int ar_quota_quantum; /* The quota interval */ | |
439 | int ar_statfs_percent; /* The % change to force sync */ | |
b3b94faa DT |
440 | }; |
441 | ||
442 | struct gfs2_tune { | |
443 | spinlock_t gt_spin; | |
444 | ||
b3b94faa | 445 | unsigned int gt_logd_secs; |
b3b94faa DT |
446 | |
447 | unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */ | |
448 | unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */ | |
449 | unsigned int gt_quota_scale_num; /* Numerator */ | |
450 | unsigned int gt_quota_scale_den; /* Denominator */ | |
b3b94faa | 451 | unsigned int gt_quota_quantum; /* Secs between syncs to quota file */ |
b3b94faa | 452 | unsigned int gt_new_files_jdata; |
b3b94faa | 453 | unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */ |
b3b94faa | 454 | unsigned int gt_complain_secs; |
b3b94faa DT |
455 | unsigned int gt_statfs_quantum; |
456 | unsigned int gt_statfs_slow; | |
457 | }; | |
458 | ||
b3b94faa DT |
459 | enum { |
460 | SDF_JOURNAL_CHECKED = 0, | |
461 | SDF_JOURNAL_LIVE = 1, | |
462 | SDF_SHUTDOWN = 2, | |
254db57f | 463 | SDF_NOBARRIERS = 3, |
fe64d517 | 464 | SDF_NORECOVERY = 4, |
913a71d2 | 465 | SDF_DEMOTE = 5, |
ba6e9364 | 466 | SDF_NOJOURNALID = 6, |
b3b94faa DT |
467 | }; |
468 | ||
b3b94faa DT |
469 | #define GFS2_FSNAME_LEN 256 |
470 | ||
bb8d8a6f SW |
471 | struct gfs2_inum_host { |
472 | u64 no_formal_ino; | |
473 | u64 no_addr; | |
474 | }; | |
475 | ||
476 | struct gfs2_sb_host { | |
477 | u32 sb_magic; | |
478 | u32 sb_type; | |
479 | u32 sb_format; | |
480 | ||
481 | u32 sb_fs_format; | |
482 | u32 sb_multihost_format; | |
483 | u32 sb_bsize; | |
484 | u32 sb_bsize_shift; | |
485 | ||
486 | struct gfs2_inum_host sb_master_dir; | |
487 | struct gfs2_inum_host sb_root_dir; | |
488 | ||
489 | char sb_lockproto[GFS2_LOCKNAME_LEN]; | |
490 | char sb_locktable[GFS2_LOCKNAME_LEN]; | |
02e3cc70 | 491 | u8 sb_uuid[16]; |
bb8d8a6f SW |
492 | }; |
493 | ||
f057f6cd SW |
494 | /* |
495 | * lm_mount() return values | |
496 | * | |
497 | * ls_jid - the journal ID this node should use | |
498 | * ls_first - this node is the first to mount the file system | |
499 | * ls_lockspace - lock module's context for this file system | |
500 | * ls_ops - lock module's functions | |
501 | */ | |
502 | ||
503 | struct lm_lockstruct { | |
feb47ca9 | 504 | int ls_jid; |
f057f6cd SW |
505 | unsigned int ls_first; |
506 | unsigned int ls_first_done; | |
507 | unsigned int ls_nodir; | |
508 | const struct lm_lockops *ls_ops; | |
509 | unsigned long ls_flags; | |
510 | dlm_lockspace_t *ls_dlm; | |
511 | ||
f057f6cd SW |
512 | int ls_recover_jid_done; |
513 | int ls_recover_jid_status; | |
514 | }; | |
515 | ||
b3b94faa DT |
516 | struct gfs2_sbd { |
517 | struct super_block *sd_vfs; | |
518 | struct kobject sd_kobj; | |
519 | unsigned long sd_flags; /* SDF_... */ | |
f50dfaf7 | 520 | struct gfs2_sb_host sd_sb; |
b3b94faa DT |
521 | |
522 | /* Constants computed on mount */ | |
523 | ||
cd915493 SW |
524 | u32 sd_fsb2bb; |
525 | u32 sd_fsb2bb_shift; | |
526 | u32 sd_diptrs; /* Number of pointers in a dinode */ | |
527 | u32 sd_inptrs; /* Number of pointers in a indirect block */ | |
528 | u32 sd_jbsize; /* Size of a journaled data block */ | |
529 | u32 sd_hash_bsize; /* sizeof(exhash block) */ | |
530 | u32 sd_hash_bsize_shift; | |
531 | u32 sd_hash_ptrs; /* Number of pointers in a hash block */ | |
532 | u32 sd_qc_per_block; | |
533 | u32 sd_max_dirres; /* Max blocks needed to add a directory entry */ | |
534 | u32 sd_max_height; /* Max height of a file's metadata tree */ | |
ecc30c79 | 535 | u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1]; |
cd915493 | 536 | u32 sd_max_jheight; /* Max height of journaled file's meta tree */ |
ecc30c79 | 537 | u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1]; |
b3b94faa DT |
538 | |
539 | struct gfs2_args sd_args; /* Mount arguments */ | |
540 | struct gfs2_tune sd_tune; /* Filesystem tuning structure */ | |
541 | ||
542 | /* Lock Stuff */ | |
543 | ||
544 | struct lm_lockstruct sd_lockstruct; | |
b3b94faa DT |
545 | struct gfs2_holder sd_live_gh; |
546 | struct gfs2_glock *sd_rename_gl; | |
547 | struct gfs2_glock *sd_trans_gl; | |
e402746a SW |
548 | wait_queue_head_t sd_glock_wait; |
549 | atomic_t sd_glock_disposal; | |
b3b94faa DT |
550 | |
551 | /* Inode Stuff */ | |
552 | ||
9b8df98f SW |
553 | struct dentry *sd_master_dir; |
554 | struct dentry *sd_root_dir; | |
555 | ||
f42faf4f | 556 | struct inode *sd_jindex; |
f42faf4f | 557 | struct inode *sd_statfs_inode; |
f42faf4f | 558 | struct inode *sd_sc_inode; |
f42faf4f SW |
559 | struct inode *sd_qc_inode; |
560 | struct inode *sd_rindex; | |
561 | struct inode *sd_quota_inode; | |
b3b94faa | 562 | |
b3b94faa DT |
563 | /* StatFS stuff */ |
564 | ||
565 | spinlock_t sd_statfs_spin; | |
bd209cc0 AV |
566 | struct gfs2_statfs_change_host sd_statfs_master; |
567 | struct gfs2_statfs_change_host sd_statfs_local; | |
3d3c10f2 | 568 | int sd_statfs_force_sync; |
b3b94faa DT |
569 | |
570 | /* Resource group stuff */ | |
571 | ||
cf45b752 | 572 | int sd_rindex_uptodate; |
b3b94faa | 573 | spinlock_t sd_rindex_spin; |
f55ab26a | 574 | struct mutex sd_rindex_mutex; |
b3b94faa DT |
575 | struct list_head sd_rindex_list; |
576 | struct list_head sd_rindex_mru_list; | |
b3b94faa DT |
577 | struct gfs2_rgrpd *sd_rindex_forward; |
578 | unsigned int sd_rgrps; | |
3921120e | 579 | unsigned int sd_max_rg_data; |
b3b94faa DT |
580 | |
581 | /* Journal index stuff */ | |
582 | ||
583 | struct list_head sd_jindex_list; | |
584 | spinlock_t sd_jindex_spin; | |
f55ab26a | 585 | struct mutex sd_jindex_mutex; |
b3b94faa | 586 | unsigned int sd_journals; |
b3b94faa DT |
587 | |
588 | struct gfs2_jdesc *sd_jdesc; | |
589 | struct gfs2_holder sd_journal_gh; | |
590 | struct gfs2_holder sd_jinode_gh; | |
591 | ||
b3b94faa | 592 | struct gfs2_holder sd_sc_gh; |
b3b94faa DT |
593 | struct gfs2_holder sd_qc_gh; |
594 | ||
595 | /* Daemon stuff */ | |
596 | ||
b3b94faa DT |
597 | struct task_struct *sd_logd_process; |
598 | struct task_struct *sd_quotad_process; | |
b3b94faa | 599 | |
b3b94faa DT |
600 | /* Quota stuff */ |
601 | ||
602 | struct list_head sd_quota_list; | |
603 | atomic_t sd_quota_count; | |
f55ab26a | 604 | struct mutex sd_quota_mutex; |
37b2c837 | 605 | wait_queue_head_t sd_quota_wait; |
813e0c46 SW |
606 | struct list_head sd_trunc_list; |
607 | spinlock_t sd_trunc_lock; | |
b3b94faa DT |
608 | |
609 | unsigned int sd_quota_slots; | |
610 | unsigned int sd_quota_chunks; | |
611 | unsigned char **sd_quota_bitmap; | |
612 | ||
cd915493 | 613 | u64 sd_quota_sync_gen; |
b3b94faa DT |
614 | |
615 | /* Log stuff */ | |
616 | ||
617 | spinlock_t sd_log_lock; | |
b3b94faa DT |
618 | |
619 | unsigned int sd_log_blks_reserved; | |
620 | unsigned int sd_log_commited_buf; | |
2332c443 | 621 | unsigned int sd_log_commited_databuf; |
2e95e3f6 | 622 | int sd_log_commited_revoke; |
b3b94faa | 623 | |
5e687eac | 624 | atomic_t sd_log_pinned; |
b3b94faa DT |
625 | unsigned int sd_log_num_buf; |
626 | unsigned int sd_log_num_revoke; | |
627 | unsigned int sd_log_num_rg; | |
628 | unsigned int sd_log_num_databuf; | |
f42faf4f | 629 | |
b3b94faa DT |
630 | struct list_head sd_log_le_buf; |
631 | struct list_head sd_log_le_revoke; | |
632 | struct list_head sd_log_le_rg; | |
633 | struct list_head sd_log_le_databuf; | |
d7b616e2 | 634 | struct list_head sd_log_le_ordered; |
b3b94faa | 635 | |
5e687eac BM |
636 | atomic_t sd_log_thresh1; |
637 | atomic_t sd_log_thresh2; | |
fd041f0b | 638 | atomic_t sd_log_blks_free; |
5e687eac BM |
639 | wait_queue_head_t sd_log_waitq; |
640 | wait_queue_head_t sd_logd_waitq; | |
b3b94faa | 641 | |
cd915493 | 642 | u64 sd_log_sequence; |
b3b94faa DT |
643 | unsigned int sd_log_head; |
644 | unsigned int sd_log_tail; | |
b3b94faa DT |
645 | int sd_log_idle; |
646 | ||
484adff8 | 647 | struct rw_semaphore sd_log_flush_lock; |
16615be1 SW |
648 | atomic_t sd_log_in_flight; |
649 | wait_queue_head_t sd_log_flush_wait; | |
b3b94faa DT |
650 | |
651 | unsigned int sd_log_flush_head; | |
cd915493 | 652 | u64 sd_log_flush_wrapped; |
b3b94faa | 653 | |
d6a079e8 | 654 | spinlock_t sd_ail_lock; |
b3b94faa DT |
655 | struct list_head sd_ail1_list; |
656 | struct list_head sd_ail2_list; | |
cd915493 | 657 | u64 sd_ail_sync_gen; |
b3b94faa DT |
658 | |
659 | /* Replay stuff */ | |
660 | ||
661 | struct list_head sd_revoke_list; | |
662 | unsigned int sd_replay_tail; | |
663 | ||
664 | unsigned int sd_found_blocks; | |
665 | unsigned int sd_found_revokes; | |
666 | unsigned int sd_replayed_blocks; | |
667 | ||
668 | /* For quiescing the filesystem */ | |
669 | ||
670 | struct gfs2_holder sd_freeze_gh; | |
f55ab26a | 671 | struct mutex sd_freeze_lock; |
b3b94faa DT |
672 | unsigned int sd_freeze_count; |
673 | ||
b3b94faa DT |
674 | char sd_fsname[GFS2_FSNAME_LEN]; |
675 | char sd_table_name[GFS2_FSNAME_LEN]; | |
676 | char sd_proto_name[GFS2_FSNAME_LEN]; | |
677 | ||
678 | /* Debugging crud */ | |
679 | ||
680 | unsigned long sd_last_warning; | |
5f882096 RP |
681 | struct dentry *debugfs_dir; /* debugfs directory */ |
682 | struct dentry *debugfs_dentry_glocks; /* for debugfs */ | |
b3b94faa DT |
683 | }; |
684 | ||
685 | #endif /* __INCORE_DOT_H__ */ | |
686 |