Commit | Line | Data |
---|---|---|
328970de | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
fa60ce2c | 2 | /* |
ccd979bd MF |
3 | * journal.c |
4 | * | |
5 | * Defines functions of journalling api | |
6 | * | |
7 | * Copyright (C) 2003, 2004 Oracle. All rights reserved. | |
ccd979bd MF |
8 | */ |
9 | ||
10 | #include <linux/fs.h> | |
11 | #include <linux/types.h> | |
12 | #include <linux/slab.h> | |
13 | #include <linux/highmem.h> | |
14 | #include <linux/kthread.h> | |
83273932 SE |
15 | #include <linux/time.h> |
16 | #include <linux/random.h> | |
55b465b6 | 17 | #include <linux/delay.h> |
cff61bbc | 18 | #include <linux/writeback.h> |
ccd979bd | 19 | |
ccd979bd MF |
20 | #include <cluster/masklog.h> |
21 | ||
22 | #include "ocfs2.h" | |
23 | ||
24 | #include "alloc.h" | |
50655ae9 | 25 | #include "blockcheck.h" |
316f4b9f | 26 | #include "dir.h" |
ccd979bd MF |
27 | #include "dlmglue.h" |
28 | #include "extent_map.h" | |
29 | #include "heartbeat.h" | |
30 | #include "inode.h" | |
31 | #include "journal.h" | |
32 | #include "localalloc.h" | |
ccd979bd MF |
33 | #include "slot_map.h" |
34 | #include "super.h" | |
ccd979bd | 35 | #include "sysfile.h" |
0cf2f763 | 36 | #include "uptodate.h" |
2205363d | 37 | #include "quota.h" |
ed460cff JQ |
38 | #include "file.h" |
39 | #include "namei.h" | |
ccd979bd MF |
40 | |
41 | #include "buffer_head_io.h" | |
b4107950 | 42 | #include "ocfs2_trace.h" |
ccd979bd | 43 | |
34af946a | 44 | DEFINE_SPINLOCK(trans_inc_lock); |
ccd979bd | 45 | |
83273932 SE |
46 | #define ORPHAN_SCAN_SCHEDULE_TIMEOUT 300000 |
47 | ||
ccd979bd MF |
48 | static int ocfs2_force_read_journal(struct inode *inode); |
49 | static int ocfs2_recover_node(struct ocfs2_super *osb, | |
2205363d | 50 | int node_num, int slot_num); |
ccd979bd MF |
51 | static int __ocfs2_recovery_thread(void *arg); |
52 | static int ocfs2_commit_cache(struct ocfs2_super *osb); | |
19ece546 | 53 | static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota); |
ccd979bd | 54 | static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, |
539d8264 | 55 | int dirty, int replayed); |
ccd979bd MF |
56 | static int ocfs2_trylock_journal(struct ocfs2_super *osb, |
57 | int slot_num); | |
58 | static int ocfs2_recover_orphans(struct ocfs2_super *osb, | |
ed460cff JQ |
59 | int slot, |
60 | enum ocfs2_orphan_reco_type orphan_reco_type); | |
ccd979bd | 61 | static int ocfs2_commit_thread(void *arg); |
9140db04 SE |
62 | static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, |
63 | int slot_num, | |
64 | struct ocfs2_dinode *la_dinode, | |
65 | struct ocfs2_dinode *tl_dinode, | |
ed460cff JQ |
66 | struct ocfs2_quota_recovery *qrec, |
67 | enum ocfs2_orphan_reco_type orphan_reco_type); | |
ccd979bd | 68 | |
19ece546 JK |
69 | static inline int ocfs2_wait_on_mount(struct ocfs2_super *osb) |
70 | { | |
71 | return __ocfs2_wait_on_mount(osb, 0); | |
72 | } | |
73 | ||
74 | static inline int ocfs2_wait_on_quotas(struct ocfs2_super *osb) | |
75 | { | |
76 | return __ocfs2_wait_on_mount(osb, 1); | |
77 | } | |
78 | ||
9140db04 SE |
79 | /* |
80 | * This replay_map is to track online/offline slots, so we could recover | |
81 | * offline slots during recovery and mount | |
82 | */ | |
83 | ||
84 | enum ocfs2_replay_state { | |
85 | REPLAY_UNNEEDED = 0, /* Replay is not needed, so ignore this map */ | |
86 | REPLAY_NEEDED, /* Replay slots marked in rm_replay_slots */ | |
87 | REPLAY_DONE /* Replay was already queued */ | |
88 | }; | |
89 | ||
90 | struct ocfs2_replay_map { | |
91 | unsigned int rm_slots; | |
92 | enum ocfs2_replay_state rm_state; | |
3c9210d4 | 93 | unsigned char rm_replay_slots[]; |
9140db04 SE |
94 | }; |
95 | ||
b519ea6d | 96 | static void ocfs2_replay_map_set_state(struct ocfs2_super *osb, int state) |
9140db04 SE |
97 | { |
98 | if (!osb->replay_map) | |
99 | return; | |
100 | ||
101 | /* If we've already queued the replay, we don't have any more to do */ | |
102 | if (osb->replay_map->rm_state == REPLAY_DONE) | |
103 | return; | |
104 | ||
105 | osb->replay_map->rm_state = state; | |
106 | } | |
107 | ||
108 | int ocfs2_compute_replay_slots(struct ocfs2_super *osb) | |
109 | { | |
110 | struct ocfs2_replay_map *replay_map; | |
111 | int i, node_num; | |
112 | ||
113 | /* If replay map is already set, we don't do it again */ | |
114 | if (osb->replay_map) | |
115 | return 0; | |
116 | ||
d70fa34f CJ |
117 | replay_map = kzalloc(struct_size(replay_map, rm_replay_slots, |
118 | osb->max_slots), | |
119 | GFP_KERNEL); | |
9140db04 SE |
120 | if (!replay_map) { |
121 | mlog_errno(-ENOMEM); | |
122 | return -ENOMEM; | |
123 | } | |
124 | ||
125 | spin_lock(&osb->osb_lock); | |
126 | ||
127 | replay_map->rm_slots = osb->max_slots; | |
128 | replay_map->rm_state = REPLAY_UNNEEDED; | |
129 | ||
130 | /* set rm_replay_slots for offline slot(s) */ | |
131 | for (i = 0; i < replay_map->rm_slots; i++) { | |
132 | if (ocfs2_slot_to_node_num_locked(osb, i, &node_num) == -ENOENT) | |
133 | replay_map->rm_replay_slots[i] = 1; | |
134 | } | |
135 | ||
136 | osb->replay_map = replay_map; | |
137 | spin_unlock(&osb->osb_lock); | |
138 | return 0; | |
139 | } | |
140 | ||
b519ea6d | 141 | static void ocfs2_queue_replay_slots(struct ocfs2_super *osb, |
ed460cff | 142 | enum ocfs2_orphan_reco_type orphan_reco_type) |
9140db04 SE |
143 | { |
144 | struct ocfs2_replay_map *replay_map = osb->replay_map; | |
145 | int i; | |
146 | ||
147 | if (!replay_map) | |
148 | return; | |
149 | ||
150 | if (replay_map->rm_state != REPLAY_NEEDED) | |
151 | return; | |
152 | ||
153 | for (i = 0; i < replay_map->rm_slots; i++) | |
154 | if (replay_map->rm_replay_slots[i]) | |
155 | ocfs2_queue_recovery_completion(osb->journal, i, NULL, | |
ed460cff JQ |
156 | NULL, NULL, |
157 | orphan_reco_type); | |
9140db04 SE |
158 | replay_map->rm_state = REPLAY_DONE; |
159 | } | |
160 | ||
ce2fcf15 | 161 | void ocfs2_free_replay_slots(struct ocfs2_super *osb) |
9140db04 SE |
162 | { |
163 | struct ocfs2_replay_map *replay_map = osb->replay_map; | |
164 | ||
165 | if (!osb->replay_map) | |
166 | return; | |
167 | ||
168 | kfree(replay_map); | |
169 | osb->replay_map = NULL; | |
170 | } | |
171 | ||
553abd04 JB |
172 | int ocfs2_recovery_init(struct ocfs2_super *osb) |
173 | { | |
174 | struct ocfs2_recovery_map *rm; | |
175 | ||
176 | mutex_init(&osb->recovery_lock); | |
177 | osb->disable_recovery = 0; | |
178 | osb->recovery_thread_task = NULL; | |
179 | init_waitqueue_head(&osb->recovery_event); | |
180 | ||
cb2273a4 | 181 | rm = kzalloc(struct_size(rm, rm_entries, osb->max_slots), |
553abd04 JB |
182 | GFP_KERNEL); |
183 | if (!rm) { | |
184 | mlog_errno(-ENOMEM); | |
185 | return -ENOMEM; | |
186 | } | |
187 | ||
553abd04 JB |
188 | osb->recovery_map = rm; |
189 | ||
190 | return 0; | |
191 | } | |
192 | ||
193 | /* we can't grab the goofy sem lock from inside wait_event, so we use | |
194 | * memory barriers to make sure that we'll see the null task before | |
195 | * being woken up */ | |
196 | static int ocfs2_recovery_thread_running(struct ocfs2_super *osb) | |
197 | { | |
198 | mb(); | |
199 | return osb->recovery_thread_task != NULL; | |
200 | } | |
201 | ||
202 | void ocfs2_recovery_exit(struct ocfs2_super *osb) | |
203 | { | |
204 | struct ocfs2_recovery_map *rm; | |
205 | ||
206 | /* disable any new recovery threads and wait for any currently | |
207 | * running ones to exit. Do this before setting the vol_state. */ | |
208 | mutex_lock(&osb->recovery_lock); | |
209 | osb->disable_recovery = 1; | |
210 | mutex_unlock(&osb->recovery_lock); | |
211 | wait_event(osb->recovery_event, !ocfs2_recovery_thread_running(osb)); | |
212 | ||
213 | /* At this point, we know that no more recovery threads can be | |
214 | * launched, so wait for any recovery completion work to | |
215 | * complete. */ | |
b918c430 YL |
216 | if (osb->ocfs2_wq) |
217 | flush_workqueue(osb->ocfs2_wq); | |
553abd04 JB |
218 | |
219 | /* | |
220 | * Now that recovery is shut down, and the osb is about to be | |
221 | * freed, the osb_lock is not taken here. | |
222 | */ | |
223 | rm = osb->recovery_map; | |
224 | /* XXX: Should we bug if there are dirty entries? */ | |
225 | ||
226 | kfree(rm); | |
227 | } | |
228 | ||
229 | static int __ocfs2_recovery_map_test(struct ocfs2_super *osb, | |
230 | unsigned int node_num) | |
231 | { | |
232 | int i; | |
233 | struct ocfs2_recovery_map *rm = osb->recovery_map; | |
234 | ||
235 | assert_spin_locked(&osb->osb_lock); | |
236 | ||
237 | for (i = 0; i < rm->rm_used; i++) { | |
238 | if (rm->rm_entries[i] == node_num) | |
239 | return 1; | |
240 | } | |
241 | ||
242 | return 0; | |
243 | } | |
244 | ||
245 | /* Behaves like test-and-set. Returns the previous value */ | |
246 | static int ocfs2_recovery_map_set(struct ocfs2_super *osb, | |
247 | unsigned int node_num) | |
248 | { | |
249 | struct ocfs2_recovery_map *rm = osb->recovery_map; | |
250 | ||
251 | spin_lock(&osb->osb_lock); | |
252 | if (__ocfs2_recovery_map_test(osb, node_num)) { | |
253 | spin_unlock(&osb->osb_lock); | |
254 | return 1; | |
255 | } | |
256 | ||
257 | /* XXX: Can this be exploited? Not from o2dlm... */ | |
258 | BUG_ON(rm->rm_used >= osb->max_slots); | |
259 | ||
260 | rm->rm_entries[rm->rm_used] = node_num; | |
261 | rm->rm_used++; | |
262 | spin_unlock(&osb->osb_lock); | |
263 | ||
264 | return 0; | |
265 | } | |
266 | ||
267 | static void ocfs2_recovery_map_clear(struct ocfs2_super *osb, | |
268 | unsigned int node_num) | |
269 | { | |
270 | int i; | |
271 | struct ocfs2_recovery_map *rm = osb->recovery_map; | |
272 | ||
273 | spin_lock(&osb->osb_lock); | |
274 | ||
275 | for (i = 0; i < rm->rm_used; i++) { | |
276 | if (rm->rm_entries[i] == node_num) | |
277 | break; | |
278 | } | |
279 | ||
280 | if (i < rm->rm_used) { | |
281 | /* XXX: be careful with the pointer math */ | |
282 | memmove(&(rm->rm_entries[i]), &(rm->rm_entries[i + 1]), | |
283 | (rm->rm_used - i - 1) * sizeof(unsigned int)); | |
284 | rm->rm_used--; | |
285 | } | |
286 | ||
287 | spin_unlock(&osb->osb_lock); | |
288 | } | |
289 | ||
ccd979bd MF |
290 | static int ocfs2_commit_cache(struct ocfs2_super *osb) |
291 | { | |
292 | int status = 0; | |
293 | unsigned int flushed; | |
ccd979bd MF |
294 | struct ocfs2_journal *journal = NULL; |
295 | ||
ccd979bd MF |
296 | journal = osb->journal; |
297 | ||
298 | /* Flush all pending commits and checkpoint the journal. */ | |
299 | down_write(&journal->j_trans_barrier); | |
300 | ||
b4107950 TM |
301 | flushed = atomic_read(&journal->j_num_trans); |
302 | trace_ocfs2_commit_cache_begin(flushed); | |
303 | if (flushed == 0) { | |
ccd979bd | 304 | up_write(&journal->j_trans_barrier); |
ccd979bd MF |
305 | goto finally; |
306 | } | |
307 | ||
2b4e30fb | 308 | jbd2_journal_lock_updates(journal->j_journal); |
01d5d965 | 309 | status = jbd2_journal_flush(journal->j_journal, 0); |
2b4e30fb | 310 | jbd2_journal_unlock_updates(journal->j_journal); |
ccd979bd MF |
311 | if (status < 0) { |
312 | up_write(&journal->j_trans_barrier); | |
313 | mlog_errno(status); | |
314 | goto finally; | |
315 | } | |
316 | ||
f9c57ada | 317 | ocfs2_inc_trans_id(journal); |
ccd979bd MF |
318 | |
319 | flushed = atomic_read(&journal->j_num_trans); | |
320 | atomic_set(&journal->j_num_trans, 0); | |
321 | up_write(&journal->j_trans_barrier); | |
322 | ||
b4107950 | 323 | trace_ocfs2_commit_cache_end(journal->j_trans_id, flushed); |
ccd979bd | 324 | |
34d024f8 | 325 | ocfs2_wake_downconvert_thread(osb); |
ccd979bd MF |
326 | wake_up(&journal->j_checkpointed); |
327 | finally: | |
ccd979bd MF |
328 | return status; |
329 | } | |
330 | ||
1fabe148 | 331 | handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs) |
ccd979bd | 332 | { |
ccd979bd | 333 | journal_t *journal = osb->journal->j_journal; |
1fabe148 | 334 | handle_t *handle; |
ccd979bd | 335 | |
ebdec83b | 336 | BUG_ON(!osb || !osb->journal->j_journal); |
ccd979bd | 337 | |
65eff9cc MF |
338 | if (ocfs2_is_hard_readonly(osb)) |
339 | return ERR_PTR(-EROFS); | |
ccd979bd MF |
340 | |
341 | BUG_ON(osb->journal->j_state == OCFS2_JOURNAL_FREE); | |
342 | BUG_ON(max_buffs <= 0); | |
343 | ||
90e86a63 JK |
344 | /* Nested transaction? Just return the handle... */ |
345 | if (journal_current_handle()) | |
346 | return jbd2_journal_start(journal, max_buffs); | |
ccd979bd | 347 | |
fef6925c JK |
348 | sb_start_intwrite(osb->sb); |
349 | ||
ccd979bd MF |
350 | down_read(&osb->journal->j_trans_barrier); |
351 | ||
2b4e30fb | 352 | handle = jbd2_journal_start(journal, max_buffs); |
1fabe148 | 353 | if (IS_ERR(handle)) { |
ccd979bd | 354 | up_read(&osb->journal->j_trans_barrier); |
fef6925c | 355 | sb_end_intwrite(osb->sb); |
ccd979bd | 356 | |
1fabe148 | 357 | mlog_errno(PTR_ERR(handle)); |
ccd979bd MF |
358 | |
359 | if (is_journal_aborted(journal)) { | |
7ecef14a | 360 | ocfs2_abort(osb->sb, "Detected aborted journal\n"); |
1fabe148 | 361 | handle = ERR_PTR(-EROFS); |
ccd979bd | 362 | } |
c271c5c2 SM |
363 | } else { |
364 | if (!ocfs2_mount_local(osb)) | |
365 | atomic_inc(&(osb->journal->j_num_trans)); | |
366 | } | |
ccd979bd | 367 | |
ccd979bd | 368 | return handle; |
ccd979bd MF |
369 | } |
370 | ||
1fabe148 MF |
371 | int ocfs2_commit_trans(struct ocfs2_super *osb, |
372 | handle_t *handle) | |
ccd979bd | 373 | { |
90e86a63 | 374 | int ret, nested; |
02dc1af4 | 375 | struct ocfs2_journal *journal = osb->journal; |
ccd979bd MF |
376 | |
377 | BUG_ON(!handle); | |
378 | ||
90e86a63 | 379 | nested = handle->h_ref > 1; |
2b4e30fb | 380 | ret = jbd2_journal_stop(handle); |
1fabe148 MF |
381 | if (ret < 0) |
382 | mlog_errno(ret); | |
ccd979bd | 383 | |
fef6925c | 384 | if (!nested) { |
90e86a63 | 385 | up_read(&journal->j_trans_barrier); |
fef6925c JK |
386 | sb_end_intwrite(osb->sb); |
387 | } | |
ccd979bd | 388 | |
1fabe148 | 389 | return ret; |
ccd979bd MF |
390 | } |
391 | ||
392 | /* | |
c901fb00 | 393 | * 'nblocks' is what you want to add to the current transaction. |
ccd979bd | 394 | * |
2b4e30fb | 395 | * This might call jbd2_journal_restart() which will commit dirty buffers |
e8aed345 MF |
396 | * and then restart the transaction. Before calling |
397 | * ocfs2_extend_trans(), any changed blocks should have been | |
398 | * dirtied. After calling it, all blocks which need to be changed must | |
399 | * go through another set of journal_access/journal_dirty calls. | |
400 | * | |
ccd979bd MF |
401 | * WARNING: This will not release any semaphores or disk locks taken |
402 | * during the transaction, so make sure they were taken *before* | |
403 | * start_trans or we'll have ordering deadlocks. | |
404 | * | |
405 | * WARNING2: Note that we do *not* drop j_trans_barrier here. This is | |
406 | * good because transaction ids haven't yet been recorded on the | |
407 | * cluster locks associated with this handle. | |
408 | */ | |
1fc58146 | 409 | int ocfs2_extend_trans(handle_t *handle, int nblocks) |
ccd979bd | 410 | { |
c901fb00 | 411 | int status, old_nblocks; |
ccd979bd MF |
412 | |
413 | BUG_ON(!handle); | |
c901fb00 | 414 | BUG_ON(nblocks < 0); |
ccd979bd | 415 | |
c901fb00 TM |
416 | if (!nblocks) |
417 | return 0; | |
418 | ||
9797a902 | 419 | old_nblocks = jbd2_handle_buffer_credits(handle); |
ccd979bd | 420 | |
b4107950 | 421 | trace_ocfs2_extend_trans(old_nblocks, nblocks); |
ccd979bd | 422 | |
e407e397 | 423 | #ifdef CONFIG_OCFS2_DEBUG_FS |
0879c584 MF |
424 | status = 1; |
425 | #else | |
fdc3ef88 | 426 | status = jbd2_journal_extend(handle, nblocks, 0); |
ccd979bd MF |
427 | if (status < 0) { |
428 | mlog_errno(status); | |
429 | goto bail; | |
430 | } | |
0879c584 | 431 | #endif |
ccd979bd MF |
432 | |
433 | if (status > 0) { | |
b4107950 | 434 | trace_ocfs2_extend_trans_restart(old_nblocks + nblocks); |
c901fb00 TM |
435 | status = jbd2_journal_restart(handle, |
436 | old_nblocks + nblocks); | |
ccd979bd | 437 | if (status < 0) { |
ccd979bd MF |
438 | mlog_errno(status); |
439 | goto bail; | |
440 | } | |
01ddf1e1 | 441 | } |
ccd979bd MF |
442 | |
443 | status = 0; | |
444 | bail: | |
ccd979bd MF |
445 | return status; |
446 | } | |
447 | ||
2b1e55c3 YL |
448 | /* |
449 | * If we have fewer than thresh credits, extend by OCFS2_MAX_TRANS_DATA. | |
450 | * If that fails, restart the transaction & regain write access for the | |
451 | * buffer head which is used for metadata modifications. | |
452 | * Taken from Ext4: extend_or_restart_transaction() | |
453 | */ | |
454 | int ocfs2_allocate_extend_trans(handle_t *handle, int thresh) | |
455 | { | |
456 | int status, old_nblks; | |
457 | ||
458 | BUG_ON(!handle); | |
459 | ||
9797a902 | 460 | old_nblks = jbd2_handle_buffer_credits(handle); |
2b1e55c3 YL |
461 | trace_ocfs2_allocate_extend_trans(old_nblks, thresh); |
462 | ||
463 | if (old_nblks < thresh) | |
464 | return 0; | |
465 | ||
fdc3ef88 | 466 | status = jbd2_journal_extend(handle, OCFS2_MAX_TRANS_DATA, 0); |
2b1e55c3 YL |
467 | if (status < 0) { |
468 | mlog_errno(status); | |
469 | goto bail; | |
470 | } | |
471 | ||
472 | if (status > 0) { | |
473 | status = jbd2_journal_restart(handle, OCFS2_MAX_TRANS_DATA); | |
474 | if (status < 0) | |
475 | mlog_errno(status); | |
476 | } | |
477 | ||
478 | bail: | |
479 | return status; | |
480 | } | |
481 | ||
482 | ||
50655ae9 JB |
483 | struct ocfs2_triggers { |
484 | struct jbd2_buffer_trigger_type ot_triggers; | |
485 | int ot_offset; | |
486 | }; | |
487 | ||
488 | static inline struct ocfs2_triggers *to_ocfs2_trigger(struct jbd2_buffer_trigger_type *triggers) | |
489 | { | |
490 | return container_of(triggers, struct ocfs2_triggers, ot_triggers); | |
491 | } | |
492 | ||
13ceef09 | 493 | static void ocfs2_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, |
50655ae9 JB |
494 | struct buffer_head *bh, |
495 | void *data, size_t size) | |
496 | { | |
497 | struct ocfs2_triggers *ot = to_ocfs2_trigger(triggers); | |
498 | ||
499 | /* | |
500 | * We aren't guaranteed to have the superblock here, so we | |
501 | * must unconditionally compute the ecc data. | |
502 | * __ocfs2_journal_access() will only set the triggers if | |
503 | * metaecc is enabled. | |
504 | */ | |
505 | ocfs2_block_check_compute(data, size, data + ot->ot_offset); | |
506 | } | |
507 | ||
508 | /* | |
509 | * Quota blocks have their own trigger because the struct ocfs2_block_check | |
510 | * offset depends on the blocksize. | |
511 | */ | |
13ceef09 | 512 | static void ocfs2_dq_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, |
50655ae9 JB |
513 | struct buffer_head *bh, |
514 | void *data, size_t size) | |
515 | { | |
516 | struct ocfs2_disk_dqtrailer *dqt = | |
517 | ocfs2_block_dqtrailer(size, data); | |
518 | ||
519 | /* | |
520 | * We aren't guaranteed to have the superblock here, so we | |
521 | * must unconditionally compute the ecc data. | |
522 | * __ocfs2_journal_access() will only set the triggers if | |
523 | * metaecc is enabled. | |
524 | */ | |
525 | ocfs2_block_check_compute(data, size, &dqt->dq_check); | |
526 | } | |
527 | ||
c175a518 JB |
528 | /* |
529 | * Directory blocks also have their own trigger because the | |
530 | * struct ocfs2_block_check offset depends on the blocksize. | |
531 | */ | |
13ceef09 | 532 | static void ocfs2_db_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, |
c175a518 JB |
533 | struct buffer_head *bh, |
534 | void *data, size_t size) | |
535 | { | |
536 | struct ocfs2_dir_block_trailer *trailer = | |
537 | ocfs2_dir_trailer_from_size(size, data); | |
538 | ||
539 | /* | |
540 | * We aren't guaranteed to have the superblock here, so we | |
541 | * must unconditionally compute the ecc data. | |
542 | * __ocfs2_journal_access() will only set the triggers if | |
543 | * metaecc is enabled. | |
544 | */ | |
545 | ocfs2_block_check_compute(data, size, &trailer->db_check); | |
546 | } | |
547 | ||
50655ae9 JB |
548 | static void ocfs2_abort_trigger(struct jbd2_buffer_trigger_type *triggers, |
549 | struct buffer_head *bh) | |
550 | { | |
551 | mlog(ML_ERROR, | |
552 | "ocfs2_abort_trigger called by JBD2. bh = 0x%lx, " | |
553 | "bh->b_blocknr = %llu\n", | |
554 | (unsigned long)bh, | |
555 | (unsigned long long)bh->b_blocknr); | |
556 | ||
8887b94d | 557 | ocfs2_error(bh->b_assoc_map->host->i_sb, |
50655ae9 JB |
558 | "JBD2 has aborted our journal, ocfs2 cannot continue\n"); |
559 | } | |
560 | ||
561 | static struct ocfs2_triggers di_triggers = { | |
562 | .ot_triggers = { | |
13ceef09 | 563 | .t_frozen = ocfs2_frozen_trigger, |
50655ae9 JB |
564 | .t_abort = ocfs2_abort_trigger, |
565 | }, | |
566 | .ot_offset = offsetof(struct ocfs2_dinode, i_check), | |
567 | }; | |
568 | ||
569 | static struct ocfs2_triggers eb_triggers = { | |
570 | .ot_triggers = { | |
13ceef09 | 571 | .t_frozen = ocfs2_frozen_trigger, |
50655ae9 JB |
572 | .t_abort = ocfs2_abort_trigger, |
573 | }, | |
574 | .ot_offset = offsetof(struct ocfs2_extent_block, h_check), | |
575 | }; | |
576 | ||
93c97087 TM |
577 | static struct ocfs2_triggers rb_triggers = { |
578 | .ot_triggers = { | |
13ceef09 | 579 | .t_frozen = ocfs2_frozen_trigger, |
93c97087 TM |
580 | .t_abort = ocfs2_abort_trigger, |
581 | }, | |
582 | .ot_offset = offsetof(struct ocfs2_refcount_block, rf_check), | |
583 | }; | |
584 | ||
50655ae9 JB |
585 | static struct ocfs2_triggers gd_triggers = { |
586 | .ot_triggers = { | |
13ceef09 | 587 | .t_frozen = ocfs2_frozen_trigger, |
50655ae9 JB |
588 | .t_abort = ocfs2_abort_trigger, |
589 | }, | |
590 | .ot_offset = offsetof(struct ocfs2_group_desc, bg_check), | |
591 | }; | |
592 | ||
c175a518 JB |
593 | static struct ocfs2_triggers db_triggers = { |
594 | .ot_triggers = { | |
13ceef09 | 595 | .t_frozen = ocfs2_db_frozen_trigger, |
c175a518 JB |
596 | .t_abort = ocfs2_abort_trigger, |
597 | }, | |
598 | }; | |
599 | ||
50655ae9 JB |
600 | static struct ocfs2_triggers xb_triggers = { |
601 | .ot_triggers = { | |
13ceef09 | 602 | .t_frozen = ocfs2_frozen_trigger, |
50655ae9 JB |
603 | .t_abort = ocfs2_abort_trigger, |
604 | }, | |
605 | .ot_offset = offsetof(struct ocfs2_xattr_block, xb_check), | |
606 | }; | |
607 | ||
608 | static struct ocfs2_triggers dq_triggers = { | |
609 | .ot_triggers = { | |
13ceef09 | 610 | .t_frozen = ocfs2_dq_frozen_trigger, |
50655ae9 JB |
611 | .t_abort = ocfs2_abort_trigger, |
612 | }, | |
613 | }; | |
614 | ||
9b7895ef MF |
615 | static struct ocfs2_triggers dr_triggers = { |
616 | .ot_triggers = { | |
13ceef09 | 617 | .t_frozen = ocfs2_frozen_trigger, |
9b7895ef MF |
618 | .t_abort = ocfs2_abort_trigger, |
619 | }, | |
620 | .ot_offset = offsetof(struct ocfs2_dx_root_block, dr_check), | |
621 | }; | |
622 | ||
623 | static struct ocfs2_triggers dl_triggers = { | |
624 | .ot_triggers = { | |
13ceef09 | 625 | .t_frozen = ocfs2_frozen_trigger, |
9b7895ef MF |
626 | .t_abort = ocfs2_abort_trigger, |
627 | }, | |
628 | .ot_offset = offsetof(struct ocfs2_dx_leaf, dl_check), | |
629 | }; | |
630 | ||
50655ae9 | 631 | static int __ocfs2_journal_access(handle_t *handle, |
0cf2f763 | 632 | struct ocfs2_caching_info *ci, |
50655ae9 JB |
633 | struct buffer_head *bh, |
634 | struct ocfs2_triggers *triggers, | |
635 | int type) | |
ccd979bd MF |
636 | { |
637 | int status; | |
0cf2f763 JB |
638 | struct ocfs2_super *osb = |
639 | OCFS2_SB(ocfs2_metadata_cache_get_super(ci)); | |
ccd979bd | 640 | |
0cf2f763 | 641 | BUG_ON(!ci || !ci->ci_ops); |
ccd979bd MF |
642 | BUG_ON(!handle); |
643 | BUG_ON(!bh); | |
ccd979bd | 644 | |
b4107950 TM |
645 | trace_ocfs2_journal_access( |
646 | (unsigned long long)ocfs2_metadata_cache_owner(ci), | |
647 | (unsigned long long)bh->b_blocknr, type, bh->b_size); | |
ccd979bd MF |
648 | |
649 | /* we can safely remove this assertion after testing. */ | |
650 | if (!buffer_uptodate(bh)) { | |
651 | mlog(ML_ERROR, "giving me a buffer that's not uptodate!\n"); | |
d984187e | 652 | mlog(ML_ERROR, "b_blocknr=%llu, b_state=0x%lx\n", |
653 | (unsigned long long)bh->b_blocknr, bh->b_state); | |
acf8fdbe JQ |
654 | |
655 | lock_buffer(bh); | |
656 | /* | |
d984187e | 657 | * A previous transaction with a couple of buffer heads fail |
658 | * to checkpoint, so all the bhs are marked as BH_Write_EIO. | |
659 | * For current transaction, the bh is just among those error | |
660 | * bhs which previous transaction handle. We can't just clear | |
661 | * its BH_Write_EIO and reuse directly, since other bhs are | |
662 | * not written to disk yet and that will cause metadata | |
663 | * inconsistency. So we should set fs read-only to avoid | |
664 | * further damage. | |
acf8fdbe JQ |
665 | */ |
666 | if (buffer_write_io_error(bh) && !buffer_uptodate(bh)) { | |
acf8fdbe | 667 | unlock_buffer(bh); |
d984187e | 668 | return ocfs2_error(osb->sb, "A previous attempt to " |
669 | "write this buffer head failed\n"); | |
acf8fdbe JQ |
670 | } |
671 | unlock_buffer(bh); | |
ccd979bd MF |
672 | } |
673 | ||
0cf2f763 | 674 | /* Set the current transaction information on the ci so |
ccd979bd | 675 | * that the locking code knows whether it can drop it's locks |
0cf2f763 | 676 | * on this ci or not. We're protected from the commit |
ccd979bd MF |
677 | * thread updating the current transaction id until |
678 | * ocfs2_commit_trans() because ocfs2_start_trans() took | |
679 | * j_trans_barrier for us. */ | |
0cf2f763 | 680 | ocfs2_set_ci_lock_trans(osb->journal, ci); |
ccd979bd | 681 | |
0cf2f763 | 682 | ocfs2_metadata_cache_io_lock(ci); |
ccd979bd MF |
683 | switch (type) { |
684 | case OCFS2_JOURNAL_ACCESS_CREATE: | |
685 | case OCFS2_JOURNAL_ACCESS_WRITE: | |
2b4e30fb | 686 | status = jbd2_journal_get_write_access(handle, bh); |
ccd979bd MF |
687 | break; |
688 | ||
689 | case OCFS2_JOURNAL_ACCESS_UNDO: | |
2b4e30fb | 690 | status = jbd2_journal_get_undo_access(handle, bh); |
ccd979bd MF |
691 | break; |
692 | ||
693 | default: | |
694 | status = -EINVAL; | |
af901ca1 | 695 | mlog(ML_ERROR, "Unknown access type!\n"); |
ccd979bd | 696 | } |
0cf2f763 | 697 | if (!status && ocfs2_meta_ecc(osb) && triggers) |
50655ae9 | 698 | jbd2_journal_set_triggers(bh, &triggers->ot_triggers); |
0cf2f763 | 699 | ocfs2_metadata_cache_io_unlock(ci); |
ccd979bd MF |
700 | |
701 | if (status < 0) | |
702 | mlog(ML_ERROR, "Error %d getting %d access to buffer!\n", | |
703 | status, type); | |
704 | ||
ccd979bd MF |
705 | return status; |
706 | } | |
707 | ||
0cf2f763 JB |
708 | int ocfs2_journal_access_di(handle_t *handle, struct ocfs2_caching_info *ci, |
709 | struct buffer_head *bh, int type) | |
50655ae9 | 710 | { |
0cf2f763 | 711 | return __ocfs2_journal_access(handle, ci, bh, &di_triggers, type); |
50655ae9 JB |
712 | } |
713 | ||
0cf2f763 | 714 | int ocfs2_journal_access_eb(handle_t *handle, struct ocfs2_caching_info *ci, |
50655ae9 JB |
715 | struct buffer_head *bh, int type) |
716 | { | |
0cf2f763 | 717 | return __ocfs2_journal_access(handle, ci, bh, &eb_triggers, type); |
50655ae9 JB |
718 | } |
719 | ||
93c97087 TM |
720 | int ocfs2_journal_access_rb(handle_t *handle, struct ocfs2_caching_info *ci, |
721 | struct buffer_head *bh, int type) | |
722 | { | |
723 | return __ocfs2_journal_access(handle, ci, bh, &rb_triggers, | |
724 | type); | |
725 | } | |
726 | ||
0cf2f763 | 727 | int ocfs2_journal_access_gd(handle_t *handle, struct ocfs2_caching_info *ci, |
50655ae9 JB |
728 | struct buffer_head *bh, int type) |
729 | { | |
0cf2f763 | 730 | return __ocfs2_journal_access(handle, ci, bh, &gd_triggers, type); |
50655ae9 JB |
731 | } |
732 | ||
0cf2f763 | 733 | int ocfs2_journal_access_db(handle_t *handle, struct ocfs2_caching_info *ci, |
50655ae9 JB |
734 | struct buffer_head *bh, int type) |
735 | { | |
0cf2f763 | 736 | return __ocfs2_journal_access(handle, ci, bh, &db_triggers, type); |
50655ae9 JB |
737 | } |
738 | ||
0cf2f763 | 739 | int ocfs2_journal_access_xb(handle_t *handle, struct ocfs2_caching_info *ci, |
50655ae9 JB |
740 | struct buffer_head *bh, int type) |
741 | { | |
0cf2f763 | 742 | return __ocfs2_journal_access(handle, ci, bh, &xb_triggers, type); |
50655ae9 JB |
743 | } |
744 | ||
0cf2f763 | 745 | int ocfs2_journal_access_dq(handle_t *handle, struct ocfs2_caching_info *ci, |
50655ae9 JB |
746 | struct buffer_head *bh, int type) |
747 | { | |
0cf2f763 | 748 | return __ocfs2_journal_access(handle, ci, bh, &dq_triggers, type); |
50655ae9 JB |
749 | } |
750 | ||
0cf2f763 | 751 | int ocfs2_journal_access_dr(handle_t *handle, struct ocfs2_caching_info *ci, |
9b7895ef MF |
752 | struct buffer_head *bh, int type) |
753 | { | |
0cf2f763 | 754 | return __ocfs2_journal_access(handle, ci, bh, &dr_triggers, type); |
9b7895ef MF |
755 | } |
756 | ||
0cf2f763 | 757 | int ocfs2_journal_access_dl(handle_t *handle, struct ocfs2_caching_info *ci, |
9b7895ef MF |
758 | struct buffer_head *bh, int type) |
759 | { | |
0cf2f763 | 760 | return __ocfs2_journal_access(handle, ci, bh, &dl_triggers, type); |
9b7895ef MF |
761 | } |
762 | ||
0cf2f763 | 763 | int ocfs2_journal_access(handle_t *handle, struct ocfs2_caching_info *ci, |
50655ae9 JB |
764 | struct buffer_head *bh, int type) |
765 | { | |
0cf2f763 | 766 | return __ocfs2_journal_access(handle, ci, bh, NULL, type); |
50655ae9 JB |
767 | } |
768 | ||
ec20cec7 | 769 | void ocfs2_journal_dirty(handle_t *handle, struct buffer_head *bh) |
ccd979bd MF |
770 | { |
771 | int status; | |
772 | ||
b4107950 | 773 | trace_ocfs2_journal_dirty((unsigned long long)bh->b_blocknr); |
ccd979bd | 774 | |
2b4e30fb | 775 | status = jbd2_journal_dirty_metadata(handle, bh); |
e272e7f0 JQ |
776 | if (status) { |
777 | mlog_errno(status); | |
778 | if (!is_handle_aborted(handle)) { | |
779 | journal_t *journal = handle->h_transaction->t_journal; | |
e272e7f0 JQ |
780 | |
781 | mlog(ML_ERROR, "jbd2_journal_dirty_metadata failed. " | |
782 | "Aborting transaction and journal.\n"); | |
783 | handle->h_err = status; | |
784 | jbd2_journal_abort_handle(handle); | |
785 | jbd2_journal_abort(journal, status); | |
8887b94d CH |
786 | ocfs2_abort(bh->b_assoc_map->host->i_sb, |
787 | "Journal already aborted.\n"); | |
e272e7f0 JQ |
788 | } |
789 | } | |
ccd979bd MF |
790 | } |
791 | ||
2b4e30fb | 792 | #define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * JBD2_DEFAULT_MAX_COMMIT_AGE) |
ccd979bd MF |
793 | |
794 | void ocfs2_set_journal_params(struct ocfs2_super *osb) | |
795 | { | |
796 | journal_t *journal = osb->journal->j_journal; | |
d147b3d6 MF |
797 | unsigned long commit_interval = OCFS2_DEFAULT_COMMIT_INTERVAL; |
798 | ||
799 | if (osb->osb_commit_interval) | |
800 | commit_interval = osb->osb_commit_interval; | |
ccd979bd | 801 | |
a931da6a | 802 | write_lock(&journal->j_state_lock); |
d147b3d6 | 803 | journal->j_commit_interval = commit_interval; |
ccd979bd | 804 | if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER) |
2b4e30fb | 805 | journal->j_flags |= JBD2_BARRIER; |
ccd979bd | 806 | else |
2b4e30fb | 807 | journal->j_flags &= ~JBD2_BARRIER; |
a931da6a | 808 | write_unlock(&journal->j_state_lock); |
ccd979bd MF |
809 | } |
810 | ||
bb20b31d HZO |
811 | /* |
812 | * alloc & initialize skeleton for journal structure. | |
813 | * ocfs2_journal_init() will make fs have journal ability. | |
814 | */ | |
815 | int ocfs2_journal_alloc(struct ocfs2_super *osb) | |
ccd979bd | 816 | { |
bb20b31d HZO |
817 | int status = 0; |
818 | struct ocfs2_journal *journal; | |
ccd979bd | 819 | |
da5e7c87 VV |
820 | journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); |
821 | if (!journal) { | |
822 | mlog(ML_ERROR, "unable to alloc journal\n"); | |
823 | status = -ENOMEM; | |
bb20b31d | 824 | goto bail; |
da5e7c87 VV |
825 | } |
826 | osb->journal = journal; | |
827 | journal->j_osb = osb; | |
ccd979bd | 828 | |
da5e7c87 VV |
829 | atomic_set(&journal->j_num_trans, 0); |
830 | init_rwsem(&journal->j_trans_barrier); | |
831 | init_waitqueue_head(&journal->j_checkpointed); | |
832 | spin_lock_init(&journal->j_lock); | |
833 | journal->j_trans_id = 1UL; | |
834 | INIT_LIST_HEAD(&journal->j_la_cleanups); | |
835 | INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); | |
836 | journal->j_state = OCFS2_JOURNAL_FREE; | |
ccd979bd | 837 | |
bb20b31d HZO |
838 | bail: |
839 | return status; | |
840 | } | |
841 | ||
cff61bbc CH |
842 | static int ocfs2_journal_submit_inode_data_buffers(struct jbd2_inode *jinode) |
843 | { | |
844 | struct address_space *mapping = jinode->i_vfs_inode->i_mapping; | |
845 | struct writeback_control wbc = { | |
846 | .sync_mode = WB_SYNC_ALL, | |
847 | .nr_to_write = mapping->nrpages * 2, | |
848 | .range_start = jinode->i_dirty_start, | |
849 | .range_end = jinode->i_dirty_end, | |
850 | }; | |
851 | ||
17c30ee6 | 852 | return filemap_fdatawrite_wbc(mapping, &wbc); |
cff61bbc CH |
853 | } |
854 | ||
bb20b31d HZO |
855 | int ocfs2_journal_init(struct ocfs2_super *osb, int *dirty) |
856 | { | |
857 | int status = -1; | |
858 | struct inode *inode = NULL; /* the journal inode */ | |
859 | journal_t *j_journal = NULL; | |
860 | struct ocfs2_journal *journal = osb->journal; | |
861 | struct ocfs2_dinode *di = NULL; | |
862 | struct buffer_head *bh = NULL; | |
863 | int inode_lock = 0; | |
864 | ||
865 | BUG_ON(!journal); | |
ccd979bd MF |
866 | /* already have the inode for our journal */ |
867 | inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, | |
868 | osb->slot_num); | |
869 | if (inode == NULL) { | |
870 | status = -EACCES; | |
871 | mlog_errno(status); | |
872 | goto done; | |
873 | } | |
874 | if (is_bad_inode(inode)) { | |
875 | mlog(ML_ERROR, "access error (bad inode)\n"); | |
876 | iput(inode); | |
877 | inode = NULL; | |
878 | status = -EACCES; | |
879 | goto done; | |
880 | } | |
881 | ||
882 | SET_INODE_JOURNAL(inode); | |
883 | OCFS2_I(inode)->ip_open_count++; | |
884 | ||
6eff5790 MF |
885 | /* Skip recovery waits here - journal inode metadata never |
886 | * changes in a live cluster so it can be considered an | |
887 | * exception to the rule. */ | |
e63aecb6 | 888 | status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); |
ccd979bd MF |
889 | if (status < 0) { |
890 | if (status != -ERESTARTSYS) | |
891 | mlog(ML_ERROR, "Could not get lock on journal!\n"); | |
892 | goto done; | |
893 | } | |
894 | ||
e63aecb6 | 895 | inode_lock = 1; |
ccd979bd MF |
896 | di = (struct ocfs2_dinode *)bh->b_data; |
897 | ||
f17c20dd | 898 | if (i_size_read(inode) < OCFS2_MIN_JOURNAL_SIZE) { |
ccd979bd | 899 | mlog(ML_ERROR, "Journal file size (%lld) is too small!\n", |
f17c20dd | 900 | i_size_read(inode)); |
ccd979bd MF |
901 | status = -EINVAL; |
902 | goto done; | |
903 | } | |
904 | ||
f17c20dd | 905 | trace_ocfs2_journal_init(i_size_read(inode), |
b4107950 TM |
906 | (unsigned long long)inode->i_blocks, |
907 | OCFS2_I(inode)->ip_clusters); | |
ccd979bd MF |
908 | |
909 | /* call the kernels journal init function now */ | |
2b4e30fb | 910 | j_journal = jbd2_journal_init_inode(inode); |
8e6cf5fb | 911 | if (IS_ERR(j_journal)) { |
ccd979bd | 912 | mlog(ML_ERROR, "Linux journal layer error\n"); |
8e6cf5fb | 913 | status = PTR_ERR(j_journal); |
ccd979bd MF |
914 | goto done; |
915 | } | |
916 | ||
ede7dc7f | 917 | trace_ocfs2_journal_init_maxlen(j_journal->j_total_len); |
ccd979bd MF |
918 | |
919 | *dirty = (le32_to_cpu(di->id1.journal1.ij_flags) & | |
920 | OCFS2_JOURNAL_DIRTY_FL); | |
921 | ||
922 | journal->j_journal = j_journal; | |
342af94e | 923 | journal->j_journal->j_submit_inode_data_buffers = |
cff61bbc | 924 | ocfs2_journal_submit_inode_data_buffers; |
342af94e MFO |
925 | journal->j_journal->j_finish_inode_data_buffers = |
926 | jbd2_journal_finish_inode_data_buffers; | |
ccd979bd MF |
927 | journal->j_inode = inode; |
928 | journal->j_bh = bh; | |
929 | ||
930 | ocfs2_set_journal_params(osb); | |
931 | ||
932 | journal->j_state = OCFS2_JOURNAL_LOADED; | |
933 | ||
934 | status = 0; | |
935 | done: | |
936 | if (status < 0) { | |
e63aecb6 MF |
937 | if (inode_lock) |
938 | ocfs2_inode_unlock(inode, 1); | |
a81cb88b | 939 | brelse(bh); |
ccd979bd MF |
940 | if (inode) { |
941 | OCFS2_I(inode)->ip_open_count--; | |
942 | iput(inode); | |
943 | } | |
944 | } | |
945 | ||
ccd979bd MF |
946 | return status; |
947 | } | |
948 | ||
539d8264 SM |
949 | static void ocfs2_bump_recovery_generation(struct ocfs2_dinode *di) |
950 | { | |
951 | le32_add_cpu(&(di->id1.journal1.ij_recovery_generation), 1); | |
952 | } | |
953 | ||
954 | static u32 ocfs2_get_recovery_generation(struct ocfs2_dinode *di) | |
955 | { | |
956 | return le32_to_cpu(di->id1.journal1.ij_recovery_generation); | |
957 | } | |
958 | ||
ccd979bd | 959 | static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, |
539d8264 | 960 | int dirty, int replayed) |
ccd979bd MF |
961 | { |
962 | int status; | |
963 | unsigned int flags; | |
964 | struct ocfs2_journal *journal = osb->journal; | |
965 | struct buffer_head *bh = journal->j_bh; | |
966 | struct ocfs2_dinode *fe; | |
967 | ||
ccd979bd | 968 | fe = (struct ocfs2_dinode *)bh->b_data; |
10995aa2 JB |
969 | |
970 | /* The journal bh on the osb always comes from ocfs2_journal_init() | |
971 | * and was validated there inside ocfs2_inode_lock_full(). It's a | |
972 | * code bug if we mess it up. */ | |
973 | BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); | |
ccd979bd MF |
974 | |
975 | flags = le32_to_cpu(fe->id1.journal1.ij_flags); | |
976 | if (dirty) | |
977 | flags |= OCFS2_JOURNAL_DIRTY_FL; | |
978 | else | |
979 | flags &= ~OCFS2_JOURNAL_DIRTY_FL; | |
980 | fe->id1.journal1.ij_flags = cpu_to_le32(flags); | |
981 | ||
539d8264 SM |
982 | if (replayed) |
983 | ocfs2_bump_recovery_generation(fe); | |
984 | ||
13723d00 | 985 | ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check); |
8cb471e8 | 986 | status = ocfs2_write_block(osb, bh, INODE_CACHE(journal->j_inode)); |
ccd979bd MF |
987 | if (status < 0) |
988 | mlog_errno(status); | |
989 | ||
ccd979bd MF |
990 | return status; |
991 | } | |
992 | ||
993 | /* | |
994 | * If the journal has been kmalloc'd it needs to be freed after this | |
995 | * call. | |
996 | */ | |
997 | void ocfs2_journal_shutdown(struct ocfs2_super *osb) | |
998 | { | |
999 | struct ocfs2_journal *journal = NULL; | |
1000 | int status = 0; | |
1001 | struct inode *inode = NULL; | |
1002 | int num_running_trans = 0; | |
1003 | ||
ebdec83b | 1004 | BUG_ON(!osb); |
ccd979bd MF |
1005 | |
1006 | journal = osb->journal; | |
1007 | if (!journal) | |
1008 | goto done; | |
1009 | ||
1010 | inode = journal->j_inode; | |
1011 | ||
1012 | if (journal->j_state != OCFS2_JOURNAL_LOADED) | |
1013 | goto done; | |
1014 | ||
2b4e30fb | 1015 | /* need to inc inode use count - jbd2_journal_destroy will iput. */ |
ccd979bd MF |
1016 | if (!igrab(inode)) |
1017 | BUG(); | |
1018 | ||
1019 | num_running_trans = atomic_read(&(osb->journal->j_num_trans)); | |
b4107950 | 1020 | trace_ocfs2_journal_shutdown(num_running_trans); |
ccd979bd MF |
1021 | |
1022 | /* Do a commit_cache here. It will flush our journal, *and* | |
1023 | * release any locks that are still held. | |
1024 | * set the SHUTDOWN flag and release the trans lock. | |
1025 | * the commit thread will take the trans lock for us below. */ | |
1026 | journal->j_state = OCFS2_JOURNAL_IN_SHUTDOWN; | |
1027 | ||
1028 | /* The OCFS2_JOURNAL_IN_SHUTDOWN will signal to commit_cache to not | |
1029 | * drop the trans_lock (which we want to hold until we | |
1030 | * completely destroy the journal. */ | |
1031 | if (osb->commit_task) { | |
1032 | /* Wait for the commit thread */ | |
b4107950 | 1033 | trace_ocfs2_journal_shutdown_wait(osb->commit_task); |
ccd979bd MF |
1034 | kthread_stop(osb->commit_task); |
1035 | osb->commit_task = NULL; | |
1036 | } | |
1037 | ||
1038 | BUG_ON(atomic_read(&(osb->journal->j_num_trans)) != 0); | |
1039 | ||
c271c5c2 | 1040 | if (ocfs2_mount_local(osb)) { |
2b4e30fb | 1041 | jbd2_journal_lock_updates(journal->j_journal); |
01d5d965 | 1042 | status = jbd2_journal_flush(journal->j_journal, 0); |
2b4e30fb | 1043 | jbd2_journal_unlock_updates(journal->j_journal); |
c271c5c2 SM |
1044 | if (status < 0) |
1045 | mlog_errno(status); | |
1046 | } | |
1047 | ||
d85400af JB |
1048 | /* Shutdown the kernel journal system */ |
1049 | if (!jbd2_journal_destroy(journal->j_journal) && !status) { | |
c271c5c2 SM |
1050 | /* |
1051 | * Do not toggle if flush was unsuccessful otherwise | |
1052 | * will leave dirty metadata in a "clean" journal | |
1053 | */ | |
539d8264 | 1054 | status = ocfs2_journal_toggle_dirty(osb, 0, 0); |
c271c5c2 SM |
1055 | if (status < 0) |
1056 | mlog_errno(status); | |
1057 | } | |
ae0dff68 | 1058 | journal->j_journal = NULL; |
ccd979bd MF |
1059 | |
1060 | OCFS2_I(inode)->ip_open_count--; | |
1061 | ||
1062 | /* unlock our journal */ | |
e63aecb6 | 1063 | ocfs2_inode_unlock(inode, 1); |
ccd979bd MF |
1064 | |
1065 | brelse(journal->j_bh); | |
1066 | journal->j_bh = NULL; | |
1067 | ||
1068 | journal->j_state = OCFS2_JOURNAL_FREE; | |
1069 | ||
ccd979bd | 1070 | done: |
72865d92 | 1071 | iput(inode); |
da5e7c87 VV |
1072 | kfree(journal); |
1073 | osb->journal = NULL; | |
ccd979bd MF |
1074 | } |
1075 | ||
1076 | static void ocfs2_clear_journal_error(struct super_block *sb, | |
1077 | journal_t *journal, | |
1078 | int slot) | |
1079 | { | |
1080 | int olderr; | |
1081 | ||
2b4e30fb | 1082 | olderr = jbd2_journal_errno(journal); |
ccd979bd MF |
1083 | if (olderr) { |
1084 | mlog(ML_ERROR, "File system error %d recorded in " | |
1085 | "journal %u.\n", olderr, slot); | |
1086 | mlog(ML_ERROR, "File system on device %s needs checking.\n", | |
1087 | sb->s_id); | |
1088 | ||
2b4e30fb JB |
1089 | jbd2_journal_ack_err(journal); |
1090 | jbd2_journal_clear_err(journal); | |
ccd979bd MF |
1091 | } |
1092 | } | |
1093 | ||
539d8264 | 1094 | int ocfs2_journal_load(struct ocfs2_journal *journal, int local, int replayed) |
ccd979bd MF |
1095 | { |
1096 | int status = 0; | |
1097 | struct ocfs2_super *osb; | |
1098 | ||
b1f3550f | 1099 | BUG_ON(!journal); |
ccd979bd MF |
1100 | |
1101 | osb = journal->j_osb; | |
1102 | ||
2b4e30fb | 1103 | status = jbd2_journal_load(journal->j_journal); |
ccd979bd MF |
1104 | if (status < 0) { |
1105 | mlog(ML_ERROR, "Failed to load journal!\n"); | |
1106 | goto done; | |
1107 | } | |
1108 | ||
1109 | ocfs2_clear_journal_error(osb->sb, journal->j_journal, osb->slot_num); | |
1110 | ||
397eac17 KL |
1111 | if (replayed) { |
1112 | jbd2_journal_lock_updates(journal->j_journal); | |
01d5d965 | 1113 | status = jbd2_journal_flush(journal->j_journal, 0); |
397eac17 KL |
1114 | jbd2_journal_unlock_updates(journal->j_journal); |
1115 | if (status < 0) | |
1116 | mlog_errno(status); | |
1117 | } | |
1118 | ||
539d8264 | 1119 | status = ocfs2_journal_toggle_dirty(osb, 1, replayed); |
ccd979bd MF |
1120 | if (status < 0) { |
1121 | mlog_errno(status); | |
1122 | goto done; | |
1123 | } | |
1124 | ||
1125 | /* Launch the commit thread */ | |
c271c5c2 SM |
1126 | if (!local) { |
1127 | osb->commit_task = kthread_run(ocfs2_commit_thread, osb, | |
5afc44e2 | 1128 | "ocfs2cmt-%s", osb->uuid_str); |
c271c5c2 SM |
1129 | if (IS_ERR(osb->commit_task)) { |
1130 | status = PTR_ERR(osb->commit_task); | |
1131 | osb->commit_task = NULL; | |
1132 | mlog(ML_ERROR, "unable to launch ocfs2commit thread, " | |
1133 | "error=%d", status); | |
1134 | goto done; | |
1135 | } | |
1136 | } else | |
ccd979bd | 1137 | osb->commit_task = NULL; |
ccd979bd MF |
1138 | |
1139 | done: | |
ccd979bd MF |
1140 | return status; |
1141 | } | |
1142 | ||
1143 | ||
1144 | /* 'full' flag tells us whether we clear out all blocks or if we just | |
1145 | * mark the journal clean */ | |
1146 | int ocfs2_journal_wipe(struct ocfs2_journal *journal, int full) | |
1147 | { | |
1148 | int status; | |
1149 | ||
ebdec83b | 1150 | BUG_ON(!journal); |
ccd979bd | 1151 | |
2b4e30fb | 1152 | status = jbd2_journal_wipe(journal->j_journal, full); |
ccd979bd MF |
1153 | if (status < 0) { |
1154 | mlog_errno(status); | |
1155 | goto bail; | |
1156 | } | |
1157 | ||
539d8264 | 1158 | status = ocfs2_journal_toggle_dirty(journal->j_osb, 0, 0); |
ccd979bd MF |
1159 | if (status < 0) |
1160 | mlog_errno(status); | |
1161 | ||
1162 | bail: | |
ccd979bd MF |
1163 | return status; |
1164 | } | |
1165 | ||
553abd04 JB |
1166 | static int ocfs2_recovery_completed(struct ocfs2_super *osb) |
1167 | { | |
1168 | int empty; | |
1169 | struct ocfs2_recovery_map *rm = osb->recovery_map; | |
1170 | ||
1171 | spin_lock(&osb->osb_lock); | |
1172 | empty = (rm->rm_used == 0); | |
1173 | spin_unlock(&osb->osb_lock); | |
1174 | ||
1175 | return empty; | |
1176 | } | |
1177 | ||
1178 | void ocfs2_wait_for_recovery(struct ocfs2_super *osb) | |
1179 | { | |
1180 | wait_event(osb->recovery_event, ocfs2_recovery_completed(osb)); | |
1181 | } | |
1182 | ||
ccd979bd MF |
1183 | /* |
1184 | * JBD Might read a cached version of another nodes journal file. We | |
1185 | * don't want this as this file changes often and we get no | |
1186 | * notification on those changes. The only way to be sure that we've | |
1187 | * got the most up to date version of those blocks then is to force | |
1188 | * read them off disk. Just searching through the buffer cache won't | |
1189 | * work as there may be pages backing this file which are still marked | |
1190 | * up to date. We know things can't change on this file underneath us | |
1191 | * as we have the lock by now :) | |
1192 | */ | |
1193 | static int ocfs2_force_read_journal(struct inode *inode) | |
1194 | { | |
1195 | int status = 0; | |
4f902c37 | 1196 | int i; |
8110b073 | 1197 | u64 v_blkno, p_blkno, p_blocks, num_blocks; |
0b492f68 JB |
1198 | struct buffer_head *bh = NULL; |
1199 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); | |
ccd979bd | 1200 | |
f17c20dd | 1201 | num_blocks = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode)); |
ccd979bd | 1202 | v_blkno = 0; |
8110b073 | 1203 | while (v_blkno < num_blocks) { |
ccd979bd | 1204 | status = ocfs2_extent_map_get_blocks(inode, v_blkno, |
49cb8d2d | 1205 | &p_blkno, &p_blocks, NULL); |
ccd979bd MF |
1206 | if (status < 0) { |
1207 | mlog_errno(status); | |
1208 | goto bail; | |
1209 | } | |
1210 | ||
0b492f68 JB |
1211 | for (i = 0; i < p_blocks; i++, p_blkno++) { |
1212 | bh = __find_get_block(osb->sb->s_bdev, p_blkno, | |
1213 | osb->sb->s_blocksize); | |
1214 | /* block not cached. */ | |
1215 | if (!bh) | |
1216 | continue; | |
1217 | ||
1218 | brelse(bh); | |
1219 | bh = NULL; | |
1220 | /* We are reading journal data which should not | |
1221 | * be put in the uptodate cache. | |
1222 | */ | |
1223 | status = ocfs2_read_blocks_sync(osb, p_blkno, 1, &bh); | |
1224 | if (status < 0) { | |
1225 | mlog_errno(status); | |
1226 | goto bail; | |
1227 | } | |
1228 | ||
1229 | brelse(bh); | |
1230 | bh = NULL; | |
ccd979bd MF |
1231 | } |
1232 | ||
1233 | v_blkno += p_blocks; | |
1234 | } | |
1235 | ||
1236 | bail: | |
ccd979bd MF |
1237 | return status; |
1238 | } | |
1239 | ||
1240 | struct ocfs2_la_recovery_item { | |
1241 | struct list_head lri_list; | |
1242 | int lri_slot; | |
1243 | struct ocfs2_dinode *lri_la_dinode; | |
1244 | struct ocfs2_dinode *lri_tl_dinode; | |
2205363d | 1245 | struct ocfs2_quota_recovery *lri_qrec; |
ed460cff | 1246 | enum ocfs2_orphan_reco_type lri_orphan_reco_type; |
ccd979bd MF |
1247 | }; |
1248 | ||
1249 | /* Does the second half of the recovery process. By this point, the | |
1250 | * node is marked clean and can actually be considered recovered, | |
1251 | * hence it's no longer in the recovery map, but there's still some | |
1252 | * cleanup we can do which shouldn't happen within the recovery thread | |
1253 | * as locking in that context becomes very difficult if we are to take | |
1254 | * recovering nodes into account. | |
1255 | * | |
1256 | * NOTE: This function can and will sleep on recovery of other nodes | |
1257 | * during cluster locking, just like any other ocfs2 process. | |
1258 | */ | |
c4028958 | 1259 | void ocfs2_complete_recovery(struct work_struct *work) |
ccd979bd | 1260 | { |
b4107950 | 1261 | int ret = 0; |
c4028958 DH |
1262 | struct ocfs2_journal *journal = |
1263 | container_of(work, struct ocfs2_journal, j_recovery_work); | |
1264 | struct ocfs2_super *osb = journal->j_osb; | |
ccd979bd | 1265 | struct ocfs2_dinode *la_dinode, *tl_dinode; |
800deef3 | 1266 | struct ocfs2_la_recovery_item *item, *n; |
2205363d | 1267 | struct ocfs2_quota_recovery *qrec; |
ed460cff | 1268 | enum ocfs2_orphan_reco_type orphan_reco_type; |
ccd979bd MF |
1269 | LIST_HEAD(tmp_la_list); |
1270 | ||
b4107950 TM |
1271 | trace_ocfs2_complete_recovery( |
1272 | (unsigned long long)OCFS2_I(journal->j_inode)->ip_blkno); | |
ccd979bd MF |
1273 | |
1274 | spin_lock(&journal->j_lock); | |
1275 | list_splice_init(&journal->j_la_cleanups, &tmp_la_list); | |
1276 | spin_unlock(&journal->j_lock); | |
1277 | ||
800deef3 | 1278 | list_for_each_entry_safe(item, n, &tmp_la_list, lri_list) { |
ccd979bd MF |
1279 | list_del_init(&item->lri_list); |
1280 | ||
19ece546 JK |
1281 | ocfs2_wait_on_quotas(osb); |
1282 | ||
ccd979bd | 1283 | la_dinode = item->lri_la_dinode; |
b4107950 TM |
1284 | tl_dinode = item->lri_tl_dinode; |
1285 | qrec = item->lri_qrec; | |
ed460cff | 1286 | orphan_reco_type = item->lri_orphan_reco_type; |
ccd979bd | 1287 | |
b4107950 TM |
1288 | trace_ocfs2_complete_recovery_slot(item->lri_slot, |
1289 | la_dinode ? le64_to_cpu(la_dinode->i_blkno) : 0, | |
1290 | tl_dinode ? le64_to_cpu(tl_dinode->i_blkno) : 0, | |
1291 | qrec); | |
1292 | ||
1293 | if (la_dinode) { | |
ccd979bd MF |
1294 | ret = ocfs2_complete_local_alloc_recovery(osb, |
1295 | la_dinode); | |
1296 | if (ret < 0) | |
1297 | mlog_errno(ret); | |
1298 | ||
1299 | kfree(la_dinode); | |
1300 | } | |
1301 | ||
ccd979bd | 1302 | if (tl_dinode) { |
ccd979bd MF |
1303 | ret = ocfs2_complete_truncate_log_recovery(osb, |
1304 | tl_dinode); | |
1305 | if (ret < 0) | |
1306 | mlog_errno(ret); | |
1307 | ||
1308 | kfree(tl_dinode); | |
1309 | } | |
1310 | ||
ed460cff JQ |
1311 | ret = ocfs2_recover_orphans(osb, item->lri_slot, |
1312 | orphan_reco_type); | |
ccd979bd MF |
1313 | if (ret < 0) |
1314 | mlog_errno(ret); | |
1315 | ||
2205363d | 1316 | if (qrec) { |
2205363d JK |
1317 | ret = ocfs2_finish_quota_recovery(osb, qrec, |
1318 | item->lri_slot); | |
1319 | if (ret < 0) | |
1320 | mlog_errno(ret); | |
1321 | /* Recovery info is already freed now */ | |
1322 | } | |
1323 | ||
ccd979bd MF |
1324 | kfree(item); |
1325 | } | |
1326 | ||
b4107950 | 1327 | trace_ocfs2_complete_recovery_end(ret); |
ccd979bd MF |
1328 | } |
1329 | ||
1330 | /* NOTE: This function always eats your references to la_dinode and | |
1331 | * tl_dinode, either manually on error, or by passing them to | |
1332 | * ocfs2_complete_recovery */ | |
1333 | static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, | |
1334 | int slot_num, | |
1335 | struct ocfs2_dinode *la_dinode, | |
2205363d | 1336 | struct ocfs2_dinode *tl_dinode, |
ed460cff JQ |
1337 | struct ocfs2_quota_recovery *qrec, |
1338 | enum ocfs2_orphan_reco_type orphan_reco_type) | |
ccd979bd MF |
1339 | { |
1340 | struct ocfs2_la_recovery_item *item; | |
1341 | ||
afae00ab | 1342 | item = kmalloc(sizeof(struct ocfs2_la_recovery_item), GFP_NOFS); |
ccd979bd MF |
1343 | if (!item) { |
1344 | /* Though we wish to avoid it, we are in fact safe in | |
1345 | * skipping local alloc cleanup as fsck.ocfs2 is more | |
1346 | * than capable of reclaiming unused space. */ | |
d787ab09 TG |
1347 | kfree(la_dinode); |
1348 | kfree(tl_dinode); | |
ccd979bd | 1349 | |
2205363d JK |
1350 | if (qrec) |
1351 | ocfs2_free_quota_recovery(qrec); | |
1352 | ||
ccd979bd MF |
1353 | mlog_errno(-ENOMEM); |
1354 | return; | |
1355 | } | |
1356 | ||
1357 | INIT_LIST_HEAD(&item->lri_list); | |
1358 | item->lri_la_dinode = la_dinode; | |
1359 | item->lri_slot = slot_num; | |
1360 | item->lri_tl_dinode = tl_dinode; | |
2205363d | 1361 | item->lri_qrec = qrec; |
ed460cff | 1362 | item->lri_orphan_reco_type = orphan_reco_type; |
ccd979bd MF |
1363 | |
1364 | spin_lock(&journal->j_lock); | |
1365 | list_add_tail(&item->lri_list, &journal->j_la_cleanups); | |
35ddf78e | 1366 | queue_work(journal->j_osb->ocfs2_wq, &journal->j_recovery_work); |
ccd979bd MF |
1367 | spin_unlock(&journal->j_lock); |
1368 | } | |
1369 | ||
1370 | /* Called by the mount code to queue recovery the last part of | |
9140db04 | 1371 | * recovery for it's own and offline slot(s). */ |
ccd979bd MF |
1372 | void ocfs2_complete_mount_recovery(struct ocfs2_super *osb) |
1373 | { | |
1374 | struct ocfs2_journal *journal = osb->journal; | |
1375 | ||
10b3dd76 SM |
1376 | if (ocfs2_is_hard_readonly(osb)) |
1377 | return; | |
1378 | ||
9140db04 SE |
1379 | /* No need to queue up our truncate_log as regular cleanup will catch |
1380 | * that */ | |
1381 | ocfs2_queue_recovery_completion(journal, osb->slot_num, | |
ed460cff JQ |
1382 | osb->local_alloc_copy, NULL, NULL, |
1383 | ORPHAN_NEED_TRUNCATE); | |
9140db04 | 1384 | ocfs2_schedule_truncate_log_flush(osb, 0); |
ccd979bd | 1385 | |
9140db04 | 1386 | osb->local_alloc_copy = NULL; |
9140db04 SE |
1387 | |
1388 | /* queue to recover orphan slots for all offline slots */ | |
1389 | ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); | |
ed460cff | 1390 | ocfs2_queue_replay_slots(osb, ORPHAN_NEED_TRUNCATE); |
9140db04 | 1391 | ocfs2_free_replay_slots(osb); |
ccd979bd MF |
1392 | } |
1393 | ||
2205363d JK |
1394 | void ocfs2_complete_quota_recovery(struct ocfs2_super *osb) |
1395 | { | |
1396 | if (osb->quota_rec) { | |
1397 | ocfs2_queue_recovery_completion(osb->journal, | |
1398 | osb->slot_num, | |
1399 | NULL, | |
1400 | NULL, | |
ed460cff JQ |
1401 | osb->quota_rec, |
1402 | ORPHAN_NEED_TRUNCATE); | |
2205363d JK |
1403 | osb->quota_rec = NULL; |
1404 | } | |
1405 | } | |
1406 | ||
ccd979bd MF |
1407 | static int __ocfs2_recovery_thread(void *arg) |
1408 | { | |
2205363d | 1409 | int status, node_num, slot_num; |
ccd979bd | 1410 | struct ocfs2_super *osb = arg; |
553abd04 | 1411 | struct ocfs2_recovery_map *rm = osb->recovery_map; |
2205363d JK |
1412 | int *rm_quota = NULL; |
1413 | int rm_quota_used = 0, i; | |
1414 | struct ocfs2_quota_recovery *qrec; | |
ccd979bd | 1415 | |
21158ca8 G |
1416 | /* Whether the quota supported. */ |
1417 | int quota_enabled = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, | |
1418 | OCFS2_FEATURE_RO_COMPAT_USRQUOTA) | |
1419 | || OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, | |
1420 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA); | |
1421 | ||
ccd979bd MF |
1422 | status = ocfs2_wait_on_mount(osb); |
1423 | if (status < 0) { | |
1424 | goto bail; | |
1425 | } | |
1426 | ||
21158ca8 G |
1427 | if (quota_enabled) { |
1428 | rm_quota = kcalloc(osb->max_slots, sizeof(int), GFP_NOFS); | |
1429 | if (!rm_quota) { | |
1430 | status = -ENOMEM; | |
1431 | goto bail; | |
1432 | } | |
2205363d | 1433 | } |
ccd979bd MF |
1434 | restart: |
1435 | status = ocfs2_super_lock(osb, 1); | |
1436 | if (status < 0) { | |
1437 | mlog_errno(status); | |
1438 | goto bail; | |
1439 | } | |
1440 | ||
9140db04 SE |
1441 | status = ocfs2_compute_replay_slots(osb); |
1442 | if (status < 0) | |
1443 | mlog_errno(status); | |
1444 | ||
1445 | /* queue recovery for our own slot */ | |
1446 | ocfs2_queue_recovery_completion(osb->journal, osb->slot_num, NULL, | |
ed460cff | 1447 | NULL, NULL, ORPHAN_NO_NEED_TRUNCATE); |
9140db04 | 1448 | |
553abd04 JB |
1449 | spin_lock(&osb->osb_lock); |
1450 | while (rm->rm_used) { | |
1451 | /* It's always safe to remove entry zero, as we won't | |
1452 | * clear it until ocfs2_recover_node() has succeeded. */ | |
1453 | node_num = rm->rm_entries[0]; | |
1454 | spin_unlock(&osb->osb_lock); | |
2205363d | 1455 | slot_num = ocfs2_node_num_to_slot(osb, node_num); |
b4107950 | 1456 | trace_ocfs2_recovery_thread_node(node_num, slot_num); |
2205363d JK |
1457 | if (slot_num == -ENOENT) { |
1458 | status = 0; | |
2205363d JK |
1459 | goto skip_recovery; |
1460 | } | |
2205363d JK |
1461 | |
1462 | /* It is a bit subtle with quota recovery. We cannot do it | |
1463 | * immediately because we have to obtain cluster locks from | |
1464 | * quota files and we also don't want to just skip it because | |
1465 | * then quota usage would be out of sync until some node takes | |
1466 | * the slot. So we remember which nodes need quota recovery | |
1467 | * and when everything else is done, we recover quotas. */ | |
21158ca8 G |
1468 | if (quota_enabled) { |
1469 | for (i = 0; i < rm_quota_used | |
1470 | && rm_quota[i] != slot_num; i++) | |
1471 | ; | |
1472 | ||
1473 | if (i == rm_quota_used) | |
1474 | rm_quota[rm_quota_used++] = slot_num; | |
1475 | } | |
2205363d JK |
1476 | |
1477 | status = ocfs2_recover_node(osb, node_num, slot_num); | |
1478 | skip_recovery: | |
553abd04 JB |
1479 | if (!status) { |
1480 | ocfs2_recovery_map_clear(osb, node_num); | |
1481 | } else { | |
ccd979bd MF |
1482 | mlog(ML_ERROR, |
1483 | "Error %d recovering node %d on device (%u,%u)!\n", | |
1484 | status, node_num, | |
1485 | MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); | |
1486 | mlog(ML_ERROR, "Volume requires unmount.\n"); | |
ccd979bd MF |
1487 | } |
1488 | ||
553abd04 | 1489 | spin_lock(&osb->osb_lock); |
ccd979bd | 1490 | } |
553abd04 | 1491 | spin_unlock(&osb->osb_lock); |
b4107950 | 1492 | trace_ocfs2_recovery_thread_end(status); |
553abd04 | 1493 | |
539d8264 SM |
1494 | /* Refresh all journal recovery generations from disk */ |
1495 | status = ocfs2_check_journals_nolocks(osb); | |
1496 | status = (status == -EROFS) ? 0 : status; | |
1497 | if (status < 0) | |
1498 | mlog_errno(status); | |
1499 | ||
2205363d | 1500 | /* Now it is right time to recover quotas... We have to do this under |
25985edc | 1501 | * superblock lock so that no one can start using the slot (and crash) |
2205363d | 1502 | * before we recover it */ |
21158ca8 G |
1503 | if (quota_enabled) { |
1504 | for (i = 0; i < rm_quota_used; i++) { | |
1505 | qrec = ocfs2_begin_quota_recovery(osb, rm_quota[i]); | |
1506 | if (IS_ERR(qrec)) { | |
1507 | status = PTR_ERR(qrec); | |
1508 | mlog_errno(status); | |
1509 | continue; | |
1510 | } | |
1511 | ocfs2_queue_recovery_completion(osb->journal, | |
1512 | rm_quota[i], | |
1513 | NULL, NULL, qrec, | |
1514 | ORPHAN_NEED_TRUNCATE); | |
2205363d | 1515 | } |
2205363d JK |
1516 | } |
1517 | ||
ccd979bd MF |
1518 | ocfs2_super_unlock(osb, 1); |
1519 | ||
9140db04 | 1520 | /* queue recovery for offline slots */ |
ed460cff | 1521 | ocfs2_queue_replay_slots(osb, ORPHAN_NEED_TRUNCATE); |
ccd979bd MF |
1522 | |
1523 | bail: | |
c74ec2f7 | 1524 | mutex_lock(&osb->recovery_lock); |
553abd04 | 1525 | if (!status && !ocfs2_recovery_completed(osb)) { |
c74ec2f7 | 1526 | mutex_unlock(&osb->recovery_lock); |
ccd979bd MF |
1527 | goto restart; |
1528 | } | |
1529 | ||
9140db04 | 1530 | ocfs2_free_replay_slots(osb); |
ccd979bd MF |
1531 | osb->recovery_thread_task = NULL; |
1532 | mb(); /* sync with ocfs2_recovery_thread_running */ | |
1533 | wake_up(&osb->recovery_event); | |
1534 | ||
c74ec2f7 | 1535 | mutex_unlock(&osb->recovery_lock); |
ccd979bd | 1536 | |
21158ca8 G |
1537 | if (quota_enabled) |
1538 | kfree(rm_quota); | |
2205363d | 1539 | |
111e7049 | 1540 | return status; |
ccd979bd MF |
1541 | } |
1542 | ||
1543 | void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num) | |
1544 | { | |
c74ec2f7 | 1545 | mutex_lock(&osb->recovery_lock); |
ccd979bd | 1546 | |
b4107950 TM |
1547 | trace_ocfs2_recovery_thread(node_num, osb->node_num, |
1548 | osb->disable_recovery, osb->recovery_thread_task, | |
1549 | osb->disable_recovery ? | |
1550 | -1 : ocfs2_recovery_map_set(osb, node_num)); | |
ccd979bd | 1551 | |
b4107950 TM |
1552 | if (osb->disable_recovery) |
1553 | goto out; | |
ccd979bd MF |
1554 | |
1555 | if (osb->recovery_thread_task) | |
1556 | goto out; | |
1557 | ||
1558 | osb->recovery_thread_task = kthread_run(__ocfs2_recovery_thread, osb, | |
5afc44e2 | 1559 | "ocfs2rec-%s", osb->uuid_str); |
ccd979bd MF |
1560 | if (IS_ERR(osb->recovery_thread_task)) { |
1561 | mlog_errno((int)PTR_ERR(osb->recovery_thread_task)); | |
1562 | osb->recovery_thread_task = NULL; | |
1563 | } | |
1564 | ||
1565 | out: | |
c74ec2f7 | 1566 | mutex_unlock(&osb->recovery_lock); |
ccd979bd | 1567 | wake_up(&osb->recovery_event); |
ccd979bd MF |
1568 | } |
1569 | ||
539d8264 SM |
1570 | static int ocfs2_read_journal_inode(struct ocfs2_super *osb, |
1571 | int slot_num, | |
1572 | struct buffer_head **bh, | |
1573 | struct inode **ret_inode) | |
1574 | { | |
1575 | int status = -EACCES; | |
1576 | struct inode *inode = NULL; | |
1577 | ||
1578 | BUG_ON(slot_num >= osb->max_slots); | |
1579 | ||
1580 | inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, | |
1581 | slot_num); | |
1582 | if (!inode || is_bad_inode(inode)) { | |
1583 | mlog_errno(status); | |
1584 | goto bail; | |
1585 | } | |
1586 | SET_INODE_JOURNAL(inode); | |
1587 | ||
b657c95c | 1588 | status = ocfs2_read_inode_block_full(inode, bh, OCFS2_BH_IGNORE_CACHE); |
539d8264 SM |
1589 | if (status < 0) { |
1590 | mlog_errno(status); | |
1591 | goto bail; | |
1592 | } | |
1593 | ||
1594 | status = 0; | |
1595 | ||
1596 | bail: | |
1597 | if (inode) { | |
1598 | if (status || !ret_inode) | |
1599 | iput(inode); | |
1600 | else | |
1601 | *ret_inode = inode; | |
1602 | } | |
1603 | return status; | |
1604 | } | |
1605 | ||
ccd979bd MF |
1606 | /* Does the actual journal replay and marks the journal inode as |
1607 | * clean. Will only replay if the journal inode is marked dirty. */ | |
1608 | static int ocfs2_replay_journal(struct ocfs2_super *osb, | |
1609 | int node_num, | |
1610 | int slot_num) | |
1611 | { | |
1612 | int status; | |
1613 | int got_lock = 0; | |
1614 | unsigned int flags; | |
1615 | struct inode *inode = NULL; | |
1616 | struct ocfs2_dinode *fe; | |
1617 | journal_t *journal = NULL; | |
1618 | struct buffer_head *bh = NULL; | |
539d8264 | 1619 | u32 slot_reco_gen; |
ccd979bd | 1620 | |
539d8264 SM |
1621 | status = ocfs2_read_journal_inode(osb, slot_num, &bh, &inode); |
1622 | if (status) { | |
ccd979bd MF |
1623 | mlog_errno(status); |
1624 | goto done; | |
1625 | } | |
539d8264 SM |
1626 | |
1627 | fe = (struct ocfs2_dinode *)bh->b_data; | |
1628 | slot_reco_gen = ocfs2_get_recovery_generation(fe); | |
1629 | brelse(bh); | |
1630 | bh = NULL; | |
1631 | ||
1632 | /* | |
1633 | * As the fs recovery is asynchronous, there is a small chance that | |
1634 | * another node mounted (and recovered) the slot before the recovery | |
1635 | * thread could get the lock. To handle that, we dirty read the journal | |
1636 | * inode for that slot to get the recovery generation. If it is | |
1637 | * different than what we expected, the slot has been recovered. | |
1638 | * If not, it needs recovery. | |
1639 | */ | |
1640 | if (osb->slot_recovery_generations[slot_num] != slot_reco_gen) { | |
b4107950 | 1641 | trace_ocfs2_replay_journal_recovered(slot_num, |
539d8264 SM |
1642 | osb->slot_recovery_generations[slot_num], slot_reco_gen); |
1643 | osb->slot_recovery_generations[slot_num] = slot_reco_gen; | |
1644 | status = -EBUSY; | |
ccd979bd MF |
1645 | goto done; |
1646 | } | |
539d8264 SM |
1647 | |
1648 | /* Continue with recovery as the journal has not yet been recovered */ | |
ccd979bd | 1649 | |
e63aecb6 | 1650 | status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); |
ccd979bd | 1651 | if (status < 0) { |
b4107950 | 1652 | trace_ocfs2_replay_journal_lock_err(status); |
ccd979bd MF |
1653 | if (status != -ERESTARTSYS) |
1654 | mlog(ML_ERROR, "Could not lock journal!\n"); | |
1655 | goto done; | |
1656 | } | |
1657 | got_lock = 1; | |
1658 | ||
1659 | fe = (struct ocfs2_dinode *) bh->b_data; | |
1660 | ||
1661 | flags = le32_to_cpu(fe->id1.journal1.ij_flags); | |
539d8264 | 1662 | slot_reco_gen = ocfs2_get_recovery_generation(fe); |
ccd979bd MF |
1663 | |
1664 | if (!(flags & OCFS2_JOURNAL_DIRTY_FL)) { | |
b4107950 | 1665 | trace_ocfs2_replay_journal_skip(node_num); |
539d8264 SM |
1666 | /* Refresh recovery generation for the slot */ |
1667 | osb->slot_recovery_generations[slot_num] = slot_reco_gen; | |
ccd979bd MF |
1668 | goto done; |
1669 | } | |
1670 | ||
9140db04 SE |
1671 | /* we need to run complete recovery for offline orphan slots */ |
1672 | ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); | |
1673 | ||
619c200d SM |
1674 | printk(KERN_NOTICE "ocfs2: Begin replay journal (node %d, slot %d) on "\ |
1675 | "device (%u,%u)\n", node_num, slot_num, MAJOR(osb->sb->s_dev), | |
1676 | MINOR(osb->sb->s_dev)); | |
ccd979bd MF |
1677 | |
1678 | OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); | |
1679 | ||
1680 | status = ocfs2_force_read_journal(inode); | |
1681 | if (status < 0) { | |
1682 | mlog_errno(status); | |
1683 | goto done; | |
1684 | } | |
1685 | ||
2b4e30fb | 1686 | journal = jbd2_journal_init_inode(inode); |
8e6cf5fb | 1687 | if (IS_ERR(journal)) { |
ccd979bd | 1688 | mlog(ML_ERROR, "Linux journal layer error\n"); |
8e6cf5fb | 1689 | status = PTR_ERR(journal); |
ccd979bd MF |
1690 | goto done; |
1691 | } | |
1692 | ||
2b4e30fb | 1693 | status = jbd2_journal_load(journal); |
ccd979bd MF |
1694 | if (status < 0) { |
1695 | mlog_errno(status); | |
783cc68d | 1696 | BUG_ON(!igrab(inode)); |
2b4e30fb | 1697 | jbd2_journal_destroy(journal); |
ccd979bd MF |
1698 | goto done; |
1699 | } | |
1700 | ||
1701 | ocfs2_clear_journal_error(osb->sb, journal, slot_num); | |
1702 | ||
1703 | /* wipe the journal */ | |
2b4e30fb | 1704 | jbd2_journal_lock_updates(journal); |
01d5d965 | 1705 | status = jbd2_journal_flush(journal, 0); |
2b4e30fb | 1706 | jbd2_journal_unlock_updates(journal); |
ccd979bd MF |
1707 | if (status < 0) |
1708 | mlog_errno(status); | |
1709 | ||
1710 | /* This will mark the node clean */ | |
1711 | flags = le32_to_cpu(fe->id1.journal1.ij_flags); | |
1712 | flags &= ~OCFS2_JOURNAL_DIRTY_FL; | |
1713 | fe->id1.journal1.ij_flags = cpu_to_le32(flags); | |
1714 | ||
539d8264 SM |
1715 | /* Increment recovery generation to indicate successful recovery */ |
1716 | ocfs2_bump_recovery_generation(fe); | |
1717 | osb->slot_recovery_generations[slot_num] = | |
1718 | ocfs2_get_recovery_generation(fe); | |
1719 | ||
13723d00 | 1720 | ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check); |
8cb471e8 | 1721 | status = ocfs2_write_block(osb, bh, INODE_CACHE(inode)); |
ccd979bd MF |
1722 | if (status < 0) |
1723 | mlog_errno(status); | |
1724 | ||
783cc68d | 1725 | BUG_ON(!igrab(inode)); |
ccd979bd | 1726 | |
2b4e30fb | 1727 | jbd2_journal_destroy(journal); |
ccd979bd | 1728 | |
619c200d SM |
1729 | printk(KERN_NOTICE "ocfs2: End replay journal (node %d, slot %d) on "\ |
1730 | "device (%u,%u)\n", node_num, slot_num, MAJOR(osb->sb->s_dev), | |
1731 | MINOR(osb->sb->s_dev)); | |
ccd979bd MF |
1732 | done: |
1733 | /* drop the lock on this nodes journal */ | |
1734 | if (got_lock) | |
e63aecb6 | 1735 | ocfs2_inode_unlock(inode, 1); |
ccd979bd | 1736 | |
72865d92 | 1737 | iput(inode); |
a81cb88b | 1738 | brelse(bh); |
ccd979bd | 1739 | |
ccd979bd MF |
1740 | return status; |
1741 | } | |
1742 | ||
1743 | /* | |
1744 | * Do the most important parts of node recovery: | |
1745 | * - Replay it's journal | |
1746 | * - Stamp a clean local allocator file | |
1747 | * - Stamp a clean truncate log | |
1748 | * - Mark the node clean | |
1749 | * | |
1750 | * If this function completes without error, a node in OCFS2 can be | |
1751 | * said to have been safely recovered. As a result, failure during the | |
1752 | * second part of a nodes recovery process (local alloc recovery) is | |
1753 | * far less concerning. | |
1754 | */ | |
1755 | static int ocfs2_recover_node(struct ocfs2_super *osb, | |
2205363d | 1756 | int node_num, int slot_num) |
ccd979bd MF |
1757 | { |
1758 | int status = 0; | |
ccd979bd MF |
1759 | struct ocfs2_dinode *la_copy = NULL; |
1760 | struct ocfs2_dinode *tl_copy = NULL; | |
1761 | ||
b4107950 | 1762 | trace_ocfs2_recover_node(node_num, slot_num, osb->node_num); |
ccd979bd MF |
1763 | |
1764 | /* Should not ever be called to recover ourselves -- in that | |
1765 | * case we should've called ocfs2_journal_load instead. */ | |
ebdec83b | 1766 | BUG_ON(osb->node_num == node_num); |
ccd979bd | 1767 | |
ccd979bd MF |
1768 | status = ocfs2_replay_journal(osb, node_num, slot_num); |
1769 | if (status < 0) { | |
539d8264 | 1770 | if (status == -EBUSY) { |
b4107950 | 1771 | trace_ocfs2_recover_node_skip(slot_num, node_num); |
539d8264 SM |
1772 | status = 0; |
1773 | goto done; | |
1774 | } | |
ccd979bd MF |
1775 | mlog_errno(status); |
1776 | goto done; | |
1777 | } | |
1778 | ||
1779 | /* Stamp a clean local alloc file AFTER recovering the journal... */ | |
1780 | status = ocfs2_begin_local_alloc_recovery(osb, slot_num, &la_copy); | |
1781 | if (status < 0) { | |
1782 | mlog_errno(status); | |
1783 | goto done; | |
1784 | } | |
1785 | ||
1786 | /* An error from begin_truncate_log_recovery is not | |
1787 | * serious enough to warrant halting the rest of | |
1788 | * recovery. */ | |
1789 | status = ocfs2_begin_truncate_log_recovery(osb, slot_num, &tl_copy); | |
1790 | if (status < 0) | |
1791 | mlog_errno(status); | |
1792 | ||
1793 | /* Likewise, this would be a strange but ultimately not so | |
1794 | * harmful place to get an error... */ | |
8e8a4603 | 1795 | status = ocfs2_clear_slot(osb, slot_num); |
ccd979bd MF |
1796 | if (status < 0) |
1797 | mlog_errno(status); | |
1798 | ||
1799 | /* This will kfree the memory pointed to by la_copy and tl_copy */ | |
1800 | ocfs2_queue_recovery_completion(osb->journal, slot_num, la_copy, | |
ed460cff | 1801 | tl_copy, NULL, ORPHAN_NEED_TRUNCATE); |
ccd979bd MF |
1802 | |
1803 | status = 0; | |
1804 | done: | |
1805 | ||
ccd979bd MF |
1806 | return status; |
1807 | } | |
1808 | ||
1809 | /* Test node liveness by trylocking his journal. If we get the lock, | |
1810 | * we drop it here. Return 0 if we got the lock, -EAGAIN if node is | |
1811 | * still alive (we couldn't get the lock) and < 0 on error. */ | |
1812 | static int ocfs2_trylock_journal(struct ocfs2_super *osb, | |
1813 | int slot_num) | |
1814 | { | |
1815 | int status, flags; | |
1816 | struct inode *inode = NULL; | |
1817 | ||
1818 | inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, | |
1819 | slot_num); | |
1820 | if (inode == NULL) { | |
1821 | mlog(ML_ERROR, "access error\n"); | |
1822 | status = -EACCES; | |
1823 | goto bail; | |
1824 | } | |
1825 | if (is_bad_inode(inode)) { | |
1826 | mlog(ML_ERROR, "access error (bad inode)\n"); | |
1827 | iput(inode); | |
1828 | inode = NULL; | |
1829 | status = -EACCES; | |
1830 | goto bail; | |
1831 | } | |
1832 | SET_INODE_JOURNAL(inode); | |
1833 | ||
1834 | flags = OCFS2_META_LOCK_RECOVERY | OCFS2_META_LOCK_NOQUEUE; | |
e63aecb6 | 1835 | status = ocfs2_inode_lock_full(inode, NULL, 1, flags); |
ccd979bd MF |
1836 | if (status < 0) { |
1837 | if (status != -EAGAIN) | |
1838 | mlog_errno(status); | |
1839 | goto bail; | |
1840 | } | |
1841 | ||
e63aecb6 | 1842 | ocfs2_inode_unlock(inode, 1); |
ccd979bd | 1843 | bail: |
72865d92 | 1844 | iput(inode); |
ccd979bd MF |
1845 | |
1846 | return status; | |
1847 | } | |
1848 | ||
1849 | /* Call this underneath ocfs2_super_lock. It also assumes that the | |
1850 | * slot info struct has been updated from disk. */ | |
1851 | int ocfs2_mark_dead_nodes(struct ocfs2_super *osb) | |
1852 | { | |
d85b20e4 JB |
1853 | unsigned int node_num; |
1854 | int status, i; | |
a1af7d15 | 1855 | u32 gen; |
539d8264 SM |
1856 | struct buffer_head *bh = NULL; |
1857 | struct ocfs2_dinode *di; | |
ccd979bd MF |
1858 | |
1859 | /* This is called with the super block cluster lock, so we | |
1860 | * know that the slot map can't change underneath us. */ | |
1861 | ||
d85b20e4 | 1862 | for (i = 0; i < osb->max_slots; i++) { |
539d8264 SM |
1863 | /* Read journal inode to get the recovery generation */ |
1864 | status = ocfs2_read_journal_inode(osb, i, &bh, NULL); | |
1865 | if (status) { | |
1866 | mlog_errno(status); | |
1867 | goto bail; | |
1868 | } | |
1869 | di = (struct ocfs2_dinode *)bh->b_data; | |
a1af7d15 | 1870 | gen = ocfs2_get_recovery_generation(di); |
539d8264 SM |
1871 | brelse(bh); |
1872 | bh = NULL; | |
1873 | ||
a1af7d15 MF |
1874 | spin_lock(&osb->osb_lock); |
1875 | osb->slot_recovery_generations[i] = gen; | |
1876 | ||
b4107950 TM |
1877 | trace_ocfs2_mark_dead_nodes(i, |
1878 | osb->slot_recovery_generations[i]); | |
539d8264 | 1879 | |
a1af7d15 MF |
1880 | if (i == osb->slot_num) { |
1881 | spin_unlock(&osb->osb_lock); | |
ccd979bd | 1882 | continue; |
a1af7d15 | 1883 | } |
d85b20e4 JB |
1884 | |
1885 | status = ocfs2_slot_to_node_num_locked(osb, i, &node_num); | |
a1af7d15 MF |
1886 | if (status == -ENOENT) { |
1887 | spin_unlock(&osb->osb_lock); | |
ccd979bd | 1888 | continue; |
a1af7d15 | 1889 | } |
ccd979bd | 1890 | |
a1af7d15 MF |
1891 | if (__ocfs2_recovery_map_test(osb, node_num)) { |
1892 | spin_unlock(&osb->osb_lock); | |
ccd979bd | 1893 | continue; |
a1af7d15 | 1894 | } |
d85b20e4 | 1895 | spin_unlock(&osb->osb_lock); |
ccd979bd MF |
1896 | |
1897 | /* Ok, we have a slot occupied by another node which | |
1898 | * is not in the recovery map. We trylock his journal | |
1899 | * file here to test if he's alive. */ | |
1900 | status = ocfs2_trylock_journal(osb, i); | |
1901 | if (!status) { | |
1902 | /* Since we're called from mount, we know that | |
1903 | * the recovery thread can't race us on | |
1904 | * setting / checking the recovery bits. */ | |
1905 | ocfs2_recovery_thread(osb, node_num); | |
1906 | } else if ((status < 0) && (status != -EAGAIN)) { | |
1907 | mlog_errno(status); | |
1908 | goto bail; | |
1909 | } | |
ccd979bd | 1910 | } |
ccd979bd MF |
1911 | |
1912 | status = 0; | |
1913 | bail: | |
ccd979bd MF |
1914 | return status; |
1915 | } | |
1916 | ||
83273932 SE |
1917 | /* |
1918 | * Scan timer should get fired every ORPHAN_SCAN_SCHEDULE_TIMEOUT. Add some | |
1919 | * randomness to the timeout to minimize multple nodes firing the timer at the | |
1920 | * same time. | |
1921 | */ | |
1922 | static inline unsigned long ocfs2_orphan_scan_timeout(void) | |
1923 | { | |
1924 | unsigned long time; | |
1925 | ||
1926 | get_random_bytes(&time, sizeof(time)); | |
1927 | time = ORPHAN_SCAN_SCHEDULE_TIMEOUT + (time % 5000); | |
1928 | return msecs_to_jiffies(time); | |
1929 | } | |
1930 | ||
1931 | /* | |
1932 | * ocfs2_queue_orphan_scan calls ocfs2_queue_recovery_completion for | |
1933 | * every slot, queuing a recovery of the slot on the ocfs2_wq thread. This | |
1934 | * is done to catch any orphans that are left over in orphan directories. | |
1935 | * | |
a035bff6 SM |
1936 | * It scans all slots, even ones that are in use. It does so to handle the |
1937 | * case described below: | |
1938 | * | |
1939 | * Node 1 has an inode it was using. The dentry went away due to memory | |
1940 | * pressure. Node 1 closes the inode, but it's on the free list. The node | |
1941 | * has the open lock. | |
1942 | * Node 2 unlinks the inode. It grabs the dentry lock to notify others, | |
1943 | * but node 1 has no dentry and doesn't get the message. It trylocks the | |
1944 | * open lock, sees that another node has a PR, and does nothing. | |
1945 | * Later node 2 runs its orphan dir. It igets the inode, trylocks the | |
1946 | * open lock, sees the PR still, and does nothing. | |
1947 | * Basically, we have to trigger an orphan iput on node 1. The only way | |
1948 | * for this to happen is if node 1 runs node 2's orphan dir. | |
1949 | * | |
83273932 SE |
1950 | * ocfs2_queue_orphan_scan gets called every ORPHAN_SCAN_SCHEDULE_TIMEOUT |
1951 | * seconds. It gets an EX lock on os_lockres and checks sequence number | |
1952 | * stored in LVB. If the sequence number has changed, it means some other | |
1953 | * node has done the scan. This node skips the scan and tracks the | |
1954 | * sequence number. If the sequence number didn't change, it means a scan | |
1955 | * hasn't happened. The node queues a scan and increments the | |
1956 | * sequence number in the LVB. | |
1957 | */ | |
b519ea6d | 1958 | static void ocfs2_queue_orphan_scan(struct ocfs2_super *osb) |
83273932 SE |
1959 | { |
1960 | struct ocfs2_orphan_scan *os; | |
1961 | int status, i; | |
1962 | u32 seqno = 0; | |
1963 | ||
1964 | os = &osb->osb_orphan_scan; | |
1965 | ||
692684e1 SM |
1966 | if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) |
1967 | goto out; | |
1968 | ||
b4107950 TM |
1969 | trace_ocfs2_queue_orphan_scan_begin(os->os_count, os->os_seqno, |
1970 | atomic_read(&os->os_state)); | |
1971 | ||
df152c24 | 1972 | status = ocfs2_orphan_scan_lock(osb, &seqno); |
83273932 SE |
1973 | if (status < 0) { |
1974 | if (status != -EAGAIN) | |
1975 | mlog_errno(status); | |
1976 | goto out; | |
1977 | } | |
1978 | ||
692684e1 SM |
1979 | /* Do no queue the tasks if the volume is being umounted */ |
1980 | if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) | |
1981 | goto unlock; | |
1982 | ||
83273932 SE |
1983 | if (os->os_seqno != seqno) { |
1984 | os->os_seqno = seqno; | |
1985 | goto unlock; | |
1986 | } | |
1987 | ||
1988 | for (i = 0; i < osb->max_slots; i++) | |
1989 | ocfs2_queue_recovery_completion(osb->journal, i, NULL, NULL, | |
ed460cff | 1990 | NULL, ORPHAN_NO_NEED_TRUNCATE); |
83273932 SE |
1991 | /* |
1992 | * We queued a recovery on orphan slots, increment the sequence | |
1993 | * number and update LVB so other node will skip the scan for a while | |
1994 | */ | |
1995 | seqno++; | |
15633a22 | 1996 | os->os_count++; |
395627b0 | 1997 | os->os_scantime = ktime_get_seconds(); |
83273932 | 1998 | unlock: |
df152c24 | 1999 | ocfs2_orphan_scan_unlock(osb, seqno); |
83273932 | 2000 | out: |
b4107950 TM |
2001 | trace_ocfs2_queue_orphan_scan_end(os->os_count, os->os_seqno, |
2002 | atomic_read(&os->os_state)); | |
83273932 SE |
2003 | return; |
2004 | } | |
2005 | ||
2006 | /* Worker task that gets fired every ORPHAN_SCAN_SCHEDULE_TIMEOUT millsec */ | |
b519ea6d | 2007 | static void ocfs2_orphan_scan_work(struct work_struct *work) |
83273932 SE |
2008 | { |
2009 | struct ocfs2_orphan_scan *os; | |
2010 | struct ocfs2_super *osb; | |
2011 | ||
2012 | os = container_of(work, struct ocfs2_orphan_scan, | |
2013 | os_orphan_scan_work.work); | |
2014 | osb = os->os_osb; | |
2015 | ||
2016 | mutex_lock(&os->os_lock); | |
2017 | ocfs2_queue_orphan_scan(osb); | |
692684e1 | 2018 | if (atomic_read(&os->os_state) == ORPHAN_SCAN_ACTIVE) |
35ddf78e | 2019 | queue_delayed_work(osb->ocfs2_wq, &os->os_orphan_scan_work, |
692684e1 | 2020 | ocfs2_orphan_scan_timeout()); |
83273932 SE |
2021 | mutex_unlock(&os->os_lock); |
2022 | } | |
2023 | ||
2024 | void ocfs2_orphan_scan_stop(struct ocfs2_super *osb) | |
2025 | { | |
2026 | struct ocfs2_orphan_scan *os; | |
2027 | ||
2028 | os = &osb->osb_orphan_scan; | |
df152c24 SM |
2029 | if (atomic_read(&os->os_state) == ORPHAN_SCAN_ACTIVE) { |
2030 | atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE); | |
2031 | mutex_lock(&os->os_lock); | |
2032 | cancel_delayed_work(&os->os_orphan_scan_work); | |
2033 | mutex_unlock(&os->os_lock); | |
2034 | } | |
83273932 SE |
2035 | } |
2036 | ||
df152c24 | 2037 | void ocfs2_orphan_scan_init(struct ocfs2_super *osb) |
83273932 SE |
2038 | { |
2039 | struct ocfs2_orphan_scan *os; | |
2040 | ||
2041 | os = &osb->osb_orphan_scan; | |
2042 | os->os_osb = osb; | |
15633a22 | 2043 | os->os_count = 0; |
3211949f | 2044 | os->os_seqno = 0; |
83273932 | 2045 | mutex_init(&os->os_lock); |
df152c24 | 2046 | INIT_DELAYED_WORK(&os->os_orphan_scan_work, ocfs2_orphan_scan_work); |
8b712cd5 | 2047 | } |
83273932 | 2048 | |
8b712cd5 JM |
2049 | void ocfs2_orphan_scan_start(struct ocfs2_super *osb) |
2050 | { | |
2051 | struct ocfs2_orphan_scan *os; | |
2052 | ||
2053 | os = &osb->osb_orphan_scan; | |
395627b0 | 2054 | os->os_scantime = ktime_get_seconds(); |
df152c24 SM |
2055 | if (ocfs2_is_hard_readonly(osb) || ocfs2_mount_local(osb)) |
2056 | atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE); | |
2057 | else { | |
2058 | atomic_set(&os->os_state, ORPHAN_SCAN_ACTIVE); | |
35ddf78e | 2059 | queue_delayed_work(osb->ocfs2_wq, &os->os_orphan_scan_work, |
40f165f4 | 2060 | ocfs2_orphan_scan_timeout()); |
df152c24 | 2061 | } |
83273932 SE |
2062 | } |
2063 | ||
5eae5b96 | 2064 | struct ocfs2_orphan_filldir_priv { |
3704412b | 2065 | struct dir_context ctx; |
5eae5b96 MF |
2066 | struct inode *head; |
2067 | struct ocfs2_super *osb; | |
30edc43c | 2068 | enum ocfs2_orphan_reco_type orphan_reco_type; |
5eae5b96 MF |
2069 | }; |
2070 | ||
25885a35 | 2071 | static bool ocfs2_orphan_filldir(struct dir_context *ctx, const char *name, |
ac7576f4 MS |
2072 | int name_len, loff_t pos, u64 ino, |
2073 | unsigned type) | |
5eae5b96 | 2074 | { |
ac7576f4 MS |
2075 | struct ocfs2_orphan_filldir_priv *p = |
2076 | container_of(ctx, struct ocfs2_orphan_filldir_priv, ctx); | |
5eae5b96 MF |
2077 | struct inode *iter; |
2078 | ||
2079 | if (name_len == 1 && !strncmp(".", name, 1)) | |
25885a35 | 2080 | return true; |
5eae5b96 | 2081 | if (name_len == 2 && !strncmp("..", name, 2)) |
25885a35 | 2082 | return true; |
5eae5b96 | 2083 | |
30edc43c JQ |
2084 | /* do not include dio entry in case of orphan scan */ |
2085 | if ((p->orphan_reco_type == ORPHAN_NO_NEED_TRUNCATE) && | |
2086 | (!strncmp(name, OCFS2_DIO_ORPHAN_PREFIX, | |
2087 | OCFS2_DIO_ORPHAN_PREFIX_LEN))) | |
25885a35 | 2088 | return true; |
30edc43c | 2089 | |
5eae5b96 MF |
2090 | /* Skip bad inodes so that recovery can continue */ |
2091 | iter = ocfs2_iget(p->osb, ino, | |
5fa0613e | 2092 | OCFS2_FI_FLAG_ORPHAN_RECOVERY, 0); |
5eae5b96 | 2093 | if (IS_ERR(iter)) |
25885a35 | 2094 | return true; |
5eae5b96 | 2095 | |
93d911fc JQ |
2096 | if (!strncmp(name, OCFS2_DIO_ORPHAN_PREFIX, |
2097 | OCFS2_DIO_ORPHAN_PREFIX_LEN)) | |
2098 | OCFS2_I(iter)->ip_flags |= OCFS2_INODE_DIO_ORPHAN_ENTRY; | |
2099 | ||
ed460cff JQ |
2100 | /* Skip inodes which are already added to recover list, since dio may |
2101 | * happen concurrently with unlink/rename */ | |
2102 | if (OCFS2_I(iter)->ip_next_orphan) { | |
2103 | iput(iter); | |
25885a35 | 2104 | return true; |
ed460cff JQ |
2105 | } |
2106 | ||
b4107950 | 2107 | trace_ocfs2_orphan_filldir((unsigned long long)OCFS2_I(iter)->ip_blkno); |
5eae5b96 MF |
2108 | /* No locking is required for the next_orphan queue as there |
2109 | * is only ever a single process doing orphan recovery. */ | |
2110 | OCFS2_I(iter)->ip_next_orphan = p->head; | |
2111 | p->head = iter; | |
2112 | ||
25885a35 | 2113 | return true; |
5eae5b96 MF |
2114 | } |
2115 | ||
b4df6ed8 MF |
2116 | static int ocfs2_queue_orphans(struct ocfs2_super *osb, |
2117 | int slot, | |
30edc43c JQ |
2118 | struct inode **head, |
2119 | enum ocfs2_orphan_reco_type orphan_reco_type) | |
ccd979bd | 2120 | { |
b4df6ed8 | 2121 | int status; |
ccd979bd | 2122 | struct inode *orphan_dir_inode = NULL; |
3704412b AV |
2123 | struct ocfs2_orphan_filldir_priv priv = { |
2124 | .ctx.actor = ocfs2_orphan_filldir, | |
2125 | .osb = osb, | |
30edc43c JQ |
2126 | .head = *head, |
2127 | .orphan_reco_type = orphan_reco_type | |
3704412b | 2128 | }; |
ccd979bd MF |
2129 | |
2130 | orphan_dir_inode = ocfs2_get_system_file_inode(osb, | |
2131 | ORPHAN_DIR_SYSTEM_INODE, | |
2132 | slot); | |
2133 | if (!orphan_dir_inode) { | |
2134 | status = -ENOENT; | |
2135 | mlog_errno(status); | |
b4df6ed8 | 2136 | return status; |
2bd63216 | 2137 | } |
ccd979bd | 2138 | |
5955102c | 2139 | inode_lock(orphan_dir_inode); |
e63aecb6 | 2140 | status = ocfs2_inode_lock(orphan_dir_inode, NULL, 0); |
ccd979bd | 2141 | if (status < 0) { |
ccd979bd MF |
2142 | mlog_errno(status); |
2143 | goto out; | |
2144 | } | |
ccd979bd | 2145 | |
3704412b | 2146 | status = ocfs2_dir_foreach(orphan_dir_inode, &priv.ctx); |
5eae5b96 MF |
2147 | if (status) { |
2148 | mlog_errno(status); | |
a86370fb | 2149 | goto out_cluster; |
ccd979bd | 2150 | } |
ccd979bd | 2151 | |
5eae5b96 MF |
2152 | *head = priv.head; |
2153 | ||
a86370fb | 2154 | out_cluster: |
e63aecb6 | 2155 | ocfs2_inode_unlock(orphan_dir_inode, 0); |
b4df6ed8 | 2156 | out: |
5955102c | 2157 | inode_unlock(orphan_dir_inode); |
ccd979bd | 2158 | iput(orphan_dir_inode); |
b4df6ed8 MF |
2159 | return status; |
2160 | } | |
2161 | ||
2162 | static int ocfs2_orphan_recovery_can_continue(struct ocfs2_super *osb, | |
2163 | int slot) | |
2164 | { | |
2165 | int ret; | |
2166 | ||
2167 | spin_lock(&osb->osb_lock); | |
2168 | ret = !osb->osb_orphan_wipes[slot]; | |
2169 | spin_unlock(&osb->osb_lock); | |
2170 | return ret; | |
2171 | } | |
2172 | ||
2173 | static void ocfs2_mark_recovering_orphan_dir(struct ocfs2_super *osb, | |
2174 | int slot) | |
2175 | { | |
2176 | spin_lock(&osb->osb_lock); | |
2177 | /* Mark ourselves such that new processes in delete_inode() | |
2178 | * know to quit early. */ | |
2179 | ocfs2_node_map_set_bit(osb, &osb->osb_recovering_orphan_dirs, slot); | |
2180 | while (osb->osb_orphan_wipes[slot]) { | |
2181 | /* If any processes are already in the middle of an | |
2182 | * orphan wipe on this dir, then we need to wait for | |
2183 | * them. */ | |
2184 | spin_unlock(&osb->osb_lock); | |
2185 | wait_event_interruptible(osb->osb_wipe_event, | |
2186 | ocfs2_orphan_recovery_can_continue(osb, slot)); | |
2187 | spin_lock(&osb->osb_lock); | |
2188 | } | |
2189 | spin_unlock(&osb->osb_lock); | |
2190 | } | |
2191 | ||
2192 | static void ocfs2_clear_recovering_orphan_dir(struct ocfs2_super *osb, | |
2193 | int slot) | |
2194 | { | |
2195 | ocfs2_node_map_clear_bit(osb, &osb->osb_recovering_orphan_dirs, slot); | |
2196 | } | |
2197 | ||
2198 | /* | |
2199 | * Orphan recovery. Each mounted node has it's own orphan dir which we | |
2200 | * must run during recovery. Our strategy here is to build a list of | |
2201 | * the inodes in the orphan dir and iget/iput them. The VFS does | |
2202 | * (most) of the rest of the work. | |
2203 | * | |
2204 | * Orphan recovery can happen at any time, not just mount so we have a | |
2205 | * couple of extra considerations. | |
2206 | * | |
2207 | * - We grab as many inodes as we can under the orphan dir lock - | |
2208 | * doing iget() outside the orphan dir risks getting a reference on | |
2209 | * an invalid inode. | |
2210 | * - We must be sure not to deadlock with other processes on the | |
2211 | * system wanting to run delete_inode(). This can happen when they go | |
2212 | * to lock the orphan dir and the orphan recovery process attempts to | |
2213 | * iget() inside the orphan dir lock. This can be avoided by | |
2214 | * advertising our state to ocfs2_delete_inode(). | |
2215 | */ | |
2216 | static int ocfs2_recover_orphans(struct ocfs2_super *osb, | |
ed460cff JQ |
2217 | int slot, |
2218 | enum ocfs2_orphan_reco_type orphan_reco_type) | |
b4df6ed8 MF |
2219 | { |
2220 | int ret = 0; | |
2221 | struct inode *inode = NULL; | |
2222 | struct inode *iter; | |
2223 | struct ocfs2_inode_info *oi; | |
cf1776a9 JQ |
2224 | struct buffer_head *di_bh = NULL; |
2225 | struct ocfs2_dinode *di = NULL; | |
b4df6ed8 | 2226 | |
b4107950 | 2227 | trace_ocfs2_recover_orphans(slot); |
b4df6ed8 MF |
2228 | |
2229 | ocfs2_mark_recovering_orphan_dir(osb, slot); | |
30edc43c | 2230 | ret = ocfs2_queue_orphans(osb, slot, &inode, orphan_reco_type); |
b4df6ed8 MF |
2231 | ocfs2_clear_recovering_orphan_dir(osb, slot); |
2232 | ||
2233 | /* Error here should be noted, but we want to continue with as | |
2234 | * many queued inodes as we've got. */ | |
2235 | if (ret) | |
2236 | mlog_errno(ret); | |
ccd979bd MF |
2237 | |
2238 | while (inode) { | |
2239 | oi = OCFS2_I(inode); | |
b4107950 TM |
2240 | trace_ocfs2_recover_orphans_iput( |
2241 | (unsigned long long)oi->ip_blkno); | |
ccd979bd MF |
2242 | |
2243 | iter = oi->ip_next_orphan; | |
ed460cff | 2244 | oi->ip_next_orphan = NULL; |
ccd979bd | 2245 | |
93d911fc | 2246 | if (oi->ip_flags & OCFS2_INODE_DIO_ORPHAN_ENTRY) { |
5955102c | 2247 | inode_lock(inode); |
93d911fc JQ |
2248 | ret = ocfs2_rw_lock(inode, 1); |
2249 | if (ret < 0) { | |
2250 | mlog_errno(ret); | |
2251 | goto unlock_mutex; | |
2252 | } | |
2253 | /* | |
2254 | * We need to take and drop the inode lock to | |
2255 | * force read inode from disk. | |
2256 | */ | |
2257 | ret = ocfs2_inode_lock(inode, &di_bh, 1); | |
2258 | if (ret) { | |
2259 | mlog_errno(ret); | |
2260 | goto unlock_rw; | |
2261 | } | |
2262 | ||
2263 | di = (struct ocfs2_dinode *)di_bh->b_data; | |
2264 | ||
2265 | if (di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL)) { | |
2266 | ret = ocfs2_truncate_file(inode, di_bh, | |
2267 | i_size_read(inode)); | |
2268 | if (ret < 0) { | |
2269 | if (ret != -ENOSPC) | |
2270 | mlog_errno(ret); | |
2271 | goto unlock_inode; | |
2272 | } | |
cf1776a9 | 2273 | |
93d911fc JQ |
2274 | ret = ocfs2_del_inode_from_orphan(osb, inode, |
2275 | di_bh, 0, 0); | |
2276 | if (ret) | |
2277 | mlog_errno(ret); | |
2278 | } | |
2279 | unlock_inode: | |
2280 | ocfs2_inode_unlock(inode, 1); | |
2281 | brelse(di_bh); | |
2282 | di_bh = NULL; | |
2283 | unlock_rw: | |
2284 | ocfs2_rw_unlock(inode, 1); | |
2285 | unlock_mutex: | |
5955102c | 2286 | inode_unlock(inode); |
ed460cff | 2287 | |
93d911fc JQ |
2288 | /* clear dio flag in ocfs2_inode_info */ |
2289 | oi->ip_flags &= ~OCFS2_INODE_DIO_ORPHAN_ENTRY; | |
2290 | } else { | |
ed460cff JQ |
2291 | spin_lock(&oi->ip_lock); |
2292 | /* Set the proper information to get us going into | |
2293 | * ocfs2_delete_inode. */ | |
2294 | oi->ip_flags |= OCFS2_INODE_MAYBE_ORPHANED; | |
2295 | spin_unlock(&oi->ip_lock); | |
ad694821 JQ |
2296 | } |
2297 | ||
ccd979bd | 2298 | iput(inode); |
ccd979bd MF |
2299 | inode = iter; |
2300 | } | |
2301 | ||
b4df6ed8 | 2302 | return ret; |
ccd979bd MF |
2303 | } |
2304 | ||
19ece546 | 2305 | static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota) |
ccd979bd MF |
2306 | { |
2307 | /* This check is good because ocfs2 will wait on our recovery | |
2308 | * thread before changing it to something other than MOUNTED | |
2309 | * or DISABLED. */ | |
2310 | wait_event(osb->osb_mount_event, | |
19ece546 JK |
2311 | (!quota && atomic_read(&osb->vol_state) == VOLUME_MOUNTED) || |
2312 | atomic_read(&osb->vol_state) == VOLUME_MOUNTED_QUOTAS || | |
ccd979bd MF |
2313 | atomic_read(&osb->vol_state) == VOLUME_DISABLED); |
2314 | ||
2315 | /* If there's an error on mount, then we may never get to the | |
2316 | * MOUNTED flag, but this is set right before | |
2317 | * dismount_volume() so we can trust it. */ | |
2318 | if (atomic_read(&osb->vol_state) == VOLUME_DISABLED) { | |
b4107950 | 2319 | trace_ocfs2_wait_on_mount(VOLUME_DISABLED); |
ccd979bd MF |
2320 | mlog(0, "mount error, exiting!\n"); |
2321 | return -EBUSY; | |
2322 | } | |
2323 | ||
2324 | return 0; | |
2325 | } | |
2326 | ||
2327 | static int ocfs2_commit_thread(void *arg) | |
2328 | { | |
2329 | int status; | |
2330 | struct ocfs2_super *osb = arg; | |
2331 | struct ocfs2_journal *journal = osb->journal; | |
2332 | ||
2333 | /* we can trust j_num_trans here because _should_stop() is only set in | |
2334 | * shutdown and nobody other than ourselves should be able to start | |
2335 | * transactions. committing on shutdown might take a few iterations | |
2336 | * as final transactions put deleted inodes on the list */ | |
2337 | while (!(kthread_should_stop() && | |
2338 | atomic_read(&journal->j_num_trans) == 0)) { | |
2339 | ||
745ae8ba MF |
2340 | wait_event_interruptible(osb->checkpoint_event, |
2341 | atomic_read(&journal->j_num_trans) | |
2342 | || kthread_should_stop()); | |
ccd979bd MF |
2343 | |
2344 | status = ocfs2_commit_cache(osb); | |
55b465b6 JQ |
2345 | if (status < 0) { |
2346 | static unsigned long abort_warn_time; | |
2347 | ||
2348 | /* Warn about this once per minute */ | |
2349 | if (printk_timed_ratelimit(&abort_warn_time, 60*HZ)) | |
2350 | mlog(ML_ERROR, "status = %d, journal is " | |
2351 | "already aborted.\n", status); | |
2352 | /* | |
2353 | * After ocfs2_commit_cache() fails, j_num_trans has a | |
2354 | * non-zero value. Sleep here to avoid a busy-wait | |
2355 | * loop. | |
2356 | */ | |
2357 | msleep_interruptible(1000); | |
2358 | } | |
ccd979bd MF |
2359 | |
2360 | if (kthread_should_stop() && atomic_read(&journal->j_num_trans)){ | |
2361 | mlog(ML_KTHREAD, | |
2362 | "commit_thread: %u transactions pending on " | |
2363 | "shutdown\n", | |
2364 | atomic_read(&journal->j_num_trans)); | |
2365 | } | |
2366 | } | |
2367 | ||
2368 | return 0; | |
2369 | } | |
2370 | ||
539d8264 SM |
2371 | /* Reads all the journal inodes without taking any cluster locks. Used |
2372 | * for hard readonly access to determine whether any journal requires | |
2373 | * recovery. Also used to refresh the recovery generation numbers after | |
2374 | * a journal has been recovered by another node. | |
2375 | */ | |
ccd979bd MF |
2376 | int ocfs2_check_journals_nolocks(struct ocfs2_super *osb) |
2377 | { | |
2378 | int ret = 0; | |
2379 | unsigned int slot; | |
539d8264 | 2380 | struct buffer_head *di_bh = NULL; |
ccd979bd | 2381 | struct ocfs2_dinode *di; |
539d8264 | 2382 | int journal_dirty = 0; |
ccd979bd MF |
2383 | |
2384 | for(slot = 0; slot < osb->max_slots; slot++) { | |
539d8264 SM |
2385 | ret = ocfs2_read_journal_inode(osb, slot, &di_bh, NULL); |
2386 | if (ret) { | |
ccd979bd MF |
2387 | mlog_errno(ret); |
2388 | goto out; | |
2389 | } | |
2390 | ||
2391 | di = (struct ocfs2_dinode *) di_bh->b_data; | |
2392 | ||
539d8264 SM |
2393 | osb->slot_recovery_generations[slot] = |
2394 | ocfs2_get_recovery_generation(di); | |
2395 | ||
ccd979bd MF |
2396 | if (le32_to_cpu(di->id1.journal1.ij_flags) & |
2397 | OCFS2_JOURNAL_DIRTY_FL) | |
539d8264 | 2398 | journal_dirty = 1; |
ccd979bd MF |
2399 | |
2400 | brelse(di_bh); | |
539d8264 | 2401 | di_bh = NULL; |
ccd979bd MF |
2402 | } |
2403 | ||
2404 | out: | |
539d8264 SM |
2405 | if (journal_dirty) |
2406 | ret = -EROFS; | |
ccd979bd MF |
2407 | return ret; |
2408 | } |