Merge tag 'mm-hotfixes-stable-2025-07-11-16-16' of git://git.kernel.org/pub/scm/linux...
[linux-block.git] / fs / bcachefs / error.c
CommitLineData
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1// SPDX-License-Identifier: GPL-2.0
2#include "bcachefs.h"
a6f4794f 3#include "btree_cache.h"
a850bde6 4#include "btree_iter.h"
1c6fdbd8 5#include "error.h"
b3c7fd35 6#include "journal.h"
4fcd4de0 7#include "namei.h"
d2554263 8#include "recovery_passes.h"
1c6fdbd8 9#include "super.h"
96f37eab 10#include "thread_with_file.h"
1c6fdbd8 11
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12#define FSCK_ERR_RATELIMIT_NR 10
13
b42fac04 14void __bch2_log_msg_start(const char *fs_or_dev_name, struct printbuf *out)
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15{
16 printbuf_indent_add_nextline(out, 2);
17
18#ifdef BCACHEFS_LOG_PREFIX
b42fac04 19 prt_printf(out, "bcachefs (%s): ", fs_or_dev_name);
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20#endif
21}
22
23bool __bch2_inconsistent_error(struct bch_fs *c, struct printbuf *out)
1c6fdbd8 24{
3c471b65 25 set_bit(BCH_FS_error, &c->flags);
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26
27 switch (c->opts.errors) {
2436cb9f 28 case BCH_ON_ERROR_continue:
1c6fdbd8 29 return false;
33dfafa9 30 case BCH_ON_ERROR_fix_safe:
2436cb9f 31 case BCH_ON_ERROR_ro:
b42fac04 32 bch2_fs_emergency_read_only2(c, out);
1c6fdbd8 33 return true;
2436cb9f 34 case BCH_ON_ERROR_panic:
ebf561b2 35 bch2_print_str(c, KERN_ERR, out->buf);
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36 panic(bch2_fmt(c, "panic after error"));
37 return true;
38 default:
39 BUG();
40 }
41}
42
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43bool bch2_inconsistent_error(struct bch_fs *c)
44{
45 struct printbuf buf = PRINTBUF;
b2ffadcc
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46 buf.atomic++;
47
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48 printbuf_indent_add_nextline(&buf, 2);
49
50 bool ret = __bch2_inconsistent_error(c, &buf);
51 if (ret)
52 bch_err(c, "%s", buf.buf);
53 printbuf_exit(&buf);
54 return ret;
55}
56
57__printf(3, 0)
58static bool bch2_fs_trans_inconsistent(struct bch_fs *c, struct btree_trans *trans,
59 const char *fmt, va_list args)
60{
61 struct printbuf buf = PRINTBUF;
b2ffadcc 62 buf.atomic++;
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63
64 bch2_log_msg_start(c, &buf);
65
66 prt_vprintf(&buf, fmt, args);
67 prt_newline(&buf);
68
69 if (trans)
70 bch2_trans_updates_to_text(&buf, trans);
71 bool ret = __bch2_inconsistent_error(c, &buf);
0acb385e 72 bch2_print_str(c, KERN_ERR, buf.buf);
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73
74 printbuf_exit(&buf);
75 return ret;
76}
77
78bool bch2_fs_inconsistent(struct bch_fs *c, const char *fmt, ...)
79{
80 va_list args;
81 va_start(args, fmt);
82 bool ret = bch2_fs_trans_inconsistent(c, NULL, fmt, args);
83 va_end(args);
84 return ret;
85}
86
87bool bch2_trans_inconsistent(struct btree_trans *trans, const char *fmt, ...)
88{
89 va_list args;
90 va_start(args, fmt);
91 bool ret = bch2_fs_trans_inconsistent(trans->c, trans, fmt, args);
92 va_end(args);
93 return ret;
94}
95
6d77ce4a 96int __bch2_topology_error(struct bch_fs *c, struct printbuf *out)
aae15aaf 97{
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98 prt_printf(out, "btree topology error: ");
99
3c471b65 100 set_bit(BCH_FS_topology_error, &c->flags);
367cad09 101 if (!test_bit(BCH_FS_in_recovery, &c->flags)) {
6d77ce4a 102 __bch2_inconsistent_error(c, out);
09b9c72b 103 return bch_err_throw(c, btree_need_topology_repair);
52946d82 104 } else {
d4b30ed9 105 return bch2_run_explicit_recovery_pass(c, out, BCH_RECOVERY_PASS_check_topology, 0) ?:
14dd9564 106 bch_err_throw(c, btree_need_topology_repair);
52946d82 107 }
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108}
109
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110int bch2_fs_topology_error(struct bch_fs *c, const char *fmt, ...)
111{
112 struct printbuf buf = PRINTBUF;
113
114 bch2_log_msg_start(c, &buf);
115
116 va_list args;
117 va_start(args, fmt);
118 prt_vprintf(&buf, fmt, args);
119 va_end(args);
120
121 int ret = __bch2_topology_error(c, &buf);
ebf561b2 122 bch2_print_str(c, KERN_ERR, buf.buf);
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123
124 printbuf_exit(&buf);
125 return ret;
126}
127
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128void bch2_fatal_error(struct bch_fs *c)
129{
130 if (bch2_fs_emergency_read_only(c))
b74b147d 131 bch_err(c, "fatal error - emergency read only");
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132}
133
134void bch2_io_error_work(struct work_struct *work)
135{
136 struct bch_dev *ca = container_of(work, struct bch_dev, io_error_work);
137 struct bch_fs *c = ca->fs;
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138
139 /* XXX: if it's reads or checksums that are failing, set it to failed */
1c6fdbd8 140
1ada1606 141 down_write(&c->state_lock);
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142 unsigned long write_errors_start = READ_ONCE(ca->write_errors_start);
143
144 if (write_errors_start &&
145 time_after(jiffies,
146 write_errors_start + c->opts.write_error_timeout * HZ)) {
147 if (ca->mi.state >= BCH_MEMBER_STATE_ro)
148 goto out;
149
150 bool dev = !__bch2_dev_set_state(c, ca, BCH_MEMBER_STATE_ro,
151 BCH_FORCE_IF_DEGRADED);
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152 struct printbuf buf = PRINTBUF;
153 __bch2_log_msg_start(ca->name, &buf);
981e3801 154
b42fac04 155 prt_printf(&buf, "writes erroring for %u seconds, setting %s ro",
981e3801 156 c->opts.write_error_timeout,
1c6fdbd8 157 dev ? "device" : "filesystem");
981e3801 158 if (!dev)
b42fac04 159 bch2_fs_emergency_read_only2(c, &buf);
981e3801 160
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161 bch2_print_str(c, KERN_ERR, buf.buf);
162 printbuf_exit(&buf);
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163 }
164out:
1ada1606 165 up_write(&c->state_lock);
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166}
167
94119eeb 168void bch2_io_error(struct bch_dev *ca, enum bch_member_error_type type)
1c6fdbd8 169{
94119eeb 170 atomic64_inc(&ca->errors[type]);
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171
172 if (type == BCH_MEMBER_ERROR_write && !ca->write_errors_start)
173 ca->write_errors_start = jiffies;
174
175 queue_work(system_long_wq, &ca->io_error_work);
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176}
177
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178enum ask_yn {
179 YN_NO,
180 YN_YES,
181 YN_ALLNO,
182 YN_ALLYES,
183};
184
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185static enum ask_yn parse_yn_response(char *buf)
186{
187 buf = strim(buf);
188
189 if (strlen(buf) == 1)
190 switch (buf[0]) {
191 case 'n':
192 return YN_NO;
193 case 'y':
194 return YN_YES;
195 case 'N':
196 return YN_ALLNO;
197 case 'Y':
198 return YN_ALLYES;
199 }
200 return -1;
201}
202
1c6fdbd8 203#ifdef __KERNEL__
889fb3dc 204static enum ask_yn bch2_fsck_ask_yn(struct bch_fs *c, struct btree_trans *trans)
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205{
206 struct stdio_redirect *stdio = c->stdio;
207
208 if (c->stdio_filter && c->stdio_filter != current)
209 stdio = NULL;
210
211 if (!stdio)
212 return YN_NO;
213
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214 if (trans)
215 bch2_trans_unlock(trans);
216
217 unsigned long unlock_long_at = trans ? jiffies + HZ * 2 : 0;
0c97c437 218 darray_char line = {};
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219 int ret;
220
221 do {
889fb3dc 222 unsigned long t;
96f37eab 223 bch2_print(c, " (y,n, or Y,N for all errors of this type) ");
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224rewait:
225 t = unlock_long_at
226 ? max_t(long, unlock_long_at - jiffies, 0)
227 : MAX_SCHEDULE_TIMEOUT;
228
229 int r = bch2_stdio_redirect_readline_timeout(stdio, &line, t);
230 if (r == -ETIME) {
231 bch2_trans_unlock_long(trans);
232 unlock_long_at = 0;
233 goto rewait;
234 }
96f37eab 235
0c97c437
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236 if (r < 0) {
237 ret = YN_NO;
238 break;
239 }
889fb3dc 240
0c97c437
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241 darray_last(line) = '\0';
242 } while ((ret = parse_yn_response(line.data)) < 0);
96f37eab 243
0c97c437 244 darray_exit(&line);
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245 return ret;
246}
1c6fdbd8 247#else
853b7393 248
1c6fdbd8 249#include "tools-util.h"
853b7393 250
889fb3dc 251static enum ask_yn bch2_fsck_ask_yn(struct bch_fs *c, struct btree_trans *trans)
853b7393
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252{
253 char *buf = NULL;
254 size_t buflen = 0;
96f37eab 255 int ret;
853b7393 256
96f37eab 257 do {
4f2c166e 258 fputs(" (y,n, or Y,N for all errors of this type) ", stdout);
853b7393
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259 fflush(stdout);
260
261 if (getline(&buf, &buflen, stdin) < 0)
262 die("error reading from standard input");
96f37eab 263 } while ((ret = parse_yn_response(buf)) < 0);
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264
265 free(buf);
266 return ret;
267}
268
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269#endif
270
7337f9f1
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271static struct fsck_err_state *fsck_err_get(struct bch_fs *c,
272 enum bch_sb_error_id id)
1c6fdbd8 273{
dbb9936b 274 struct fsck_err_state *s;
1c6fdbd8 275
f5d26fa3 276 list_for_each_entry(s, &c->fsck_error_msgs, list)
7337f9f1 277 if (s->id == id) {
dbb9936b
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278 /*
279 * move it to the head of the list: repeated fsck errors
280 * are common
281 */
f5d26fa3 282 list_move(&s->list, &c->fsck_error_msgs);
dbb9936b
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283 return s;
284 }
1c6fdbd8 285
beb6db68 286 s = kzalloc(sizeof(*s), GFP_NOFS);
1c6fdbd8 287 if (!s) {
f5d26fa3 288 if (!c->fsck_alloc_msgs_err)
1c6fdbd8 289 bch_err(c, "kmalloc err, cannot ratelimit fsck errs");
f5d26fa3 290 c->fsck_alloc_msgs_err = true;
dbb9936b 291 return NULL;
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292 }
293
294 INIT_LIST_HEAD(&s->list);
7337f9f1 295 s->id = id;
f5d26fa3 296 list_add(&s->list, &c->fsck_error_msgs);
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297 return s;
298}
299
19391b92
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300/* s/fix?/fixing/ s/recreate?/recreating/ */
301static void prt_actioning(struct printbuf *out, const char *action)
302{
303 unsigned len = strlen(action);
304
305 BUG_ON(action[len - 1] != '?');
306 --len;
307
308 if (action[len - 1] == 'e')
309 --len;
310
311 prt_bytes(out, action, len);
312 prt_str(out, "ing");
313}
314
33dfafa9
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315static const u8 fsck_flags_extra[] = {
316#define x(t, n, flags) [BCH_FSCK_ERR_##t] = flags,
317 BCH_SB_ERRS()
318#undef x
319};
320
8b105909
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321static int do_fsck_ask_yn(struct bch_fs *c,
322 struct btree_trans *trans,
323 struct printbuf *question,
324 const char *action)
325{
326 prt_str(question, ", ");
327 prt_str(question, action);
328
329 if (bch2_fs_stdio_redirect(c))
330 bch2_print(c, "%s", question->buf);
331 else
ebf561b2 332 bch2_print_str(c, KERN_ERR, question->buf);
8b105909
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333
334 int ask = bch2_fsck_ask_yn(c, trans);
335
336 if (trans) {
337 int ret = bch2_trans_relock(trans);
338 if (ret)
339 return ret;
340 }
341
342 return ask;
343}
344
7337f9f1
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345static struct fsck_err_state *count_fsck_err_locked(struct bch_fs *c,
346 enum bch_sb_error_id id, const char *msg,
347 bool *repeat, bool *print, bool *suppress)
348{
349 bch2_sb_error_count(c, id);
350
351 struct fsck_err_state *s = fsck_err_get(c, id);
352 if (s) {
353 /*
354 * We may be called multiple times for the same error on
355 * transaction restart - this memoizes instead of asking the user
356 * multiple times for the same error:
357 */
358 if (s->last_msg && !strcmp(msg, s->last_msg)) {
359 *repeat = true;
360 *print = false;
361 return s;
362 }
363
364 kfree(s->last_msg);
365 s->last_msg = kstrdup(msg, GFP_KERNEL);
366
367 if (c->opts.ratelimit_errors &&
368 s->nr >= FSCK_ERR_RATELIMIT_NR) {
369 if (s->nr == FSCK_ERR_RATELIMIT_NR)
370 *suppress = true;
371 else
372 *print = false;
373 }
374
375 s->nr++;
376 }
377 return s;
378}
379
20853251
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380bool __bch2_count_fsck_err(struct bch_fs *c,
381 enum bch_sb_error_id id, struct printbuf *msg)
7337f9f1
KO
382{
383 bch2_sb_error_count(c, id);
384
385 mutex_lock(&c->fsck_error_msgs_lock);
20853251
KO
386 bool print = true, repeat = false, suppress = false;
387
388 count_fsck_err_locked(c, id, msg->buf, &repeat, &print, &suppress);
7337f9f1 389 mutex_unlock(&c->fsck_error_msgs_lock);
20853251
KO
390
391 if (suppress)
392 prt_printf(msg, "Ratelimiting new instances of previous error\n");
393
394 return print && !repeat;
7337f9f1
KO
395}
396
d31f1559
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397int bch2_fsck_err_opt(struct bch_fs *c,
398 enum bch_fsck_flags flags,
399 enum bch_sb_error_id err)
400{
401 if (!WARN_ON(err >= ARRAY_SIZE(fsck_flags_extra)))
402 flags |= fsck_flags_extra[err];
403
367cad09 404 if (test_bit(BCH_FS_in_fsck, &c->flags)) {
d31f1559 405 if (!(flags & (FSCK_CAN_FIX|FSCK_CAN_IGNORE)))
09b9c72b 406 return bch_err_throw(c, fsck_repair_unimplemented);
d31f1559
KO
407
408 switch (c->opts.fix_errors) {
409 case FSCK_FIX_exit:
09b9c72b 410 return bch_err_throw(c, fsck_errors_not_fixed);
d31f1559
KO
411 case FSCK_FIX_yes:
412 if (flags & FSCK_CAN_FIX)
09b9c72b 413 return bch_err_throw(c, fsck_fix);
d31f1559
KO
414 fallthrough;
415 case FSCK_FIX_no:
416 if (flags & FSCK_CAN_IGNORE)
09b9c72b
KO
417 return bch_err_throw(c, fsck_ignore);
418 return bch_err_throw(c, fsck_errors_not_fixed);
d31f1559
KO
419 case FSCK_FIX_ask:
420 if (flags & FSCK_AUTOFIX)
09b9c72b
KO
421 return bch_err_throw(c, fsck_fix);
422 return bch_err_throw(c, fsck_ask);
d31f1559
KO
423 default:
424 BUG();
425 }
426 } else {
427 if ((flags & FSCK_AUTOFIX) &&
428 (c->opts.errors == BCH_ON_ERROR_continue ||
429 c->opts.errors == BCH_ON_ERROR_fix_safe))
09b9c72b 430 return bch_err_throw(c, fsck_fix);
d31f1559
KO
431
432 if (c->opts.errors == BCH_ON_ERROR_continue &&
433 (flags & FSCK_CAN_IGNORE))
09b9c72b
KO
434 return bch_err_throw(c, fsck_ignore);
435 return bch_err_throw(c, fsck_errors_not_fixed);
d31f1559
KO
436 }
437}
438
a850bde6
KO
439int __bch2_fsck_err(struct bch_fs *c,
440 struct btree_trans *trans,
b65db750
KO
441 enum bch_fsck_flags flags,
442 enum bch_sb_error_id err,
443 const char *fmt, ...)
dbb9936b 444{
dbb9936b 445 va_list args;
dbb9936b 446 struct printbuf buf = PRINTBUF, *out = &buf;
642c1aab 447 int ret = 0;
19391b92 448 const char *action_orig = "fix?", *action = action_orig;
dbb9936b 449
e76a2b65
KO
450 might_sleep();
451
33dfafa9
KO
452 if (!WARN_ON(err >= ARRAY_SIZE(fsck_flags_extra)))
453 flags |= fsck_flags_extra[err];
454
a850bde6
KO
455 if (!c)
456 c = trans->c;
457
5612daaf
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458 /*
459 * Ugly: if there's a transaction in the current task it has to be
460 * passed in to unlock if we prompt for user input.
461 *
462 * But, plumbing a transaction and transaction restarts into
463 * bkey_validate() is problematic.
464 *
465 * So:
466 * - make all bkey errors AUTOFIX, they're simple anyways (we just
467 * delete the key)
468 * - and we don't need to warn if we're not prompting
469 */
eb5db64c
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470 WARN_ON((flags & FSCK_CAN_FIX) &&
471 !(flags & FSCK_AUTOFIX) &&
472 !trans &&
473 bch2_current_has_btree_trans(c));
a850bde6 474
c8e58813
KO
475 if (test_bit(err, c->sb.errors_silent))
476 return flags & FSCK_CAN_FIX
09b9c72b
KO
477 ? bch_err_throw(c, fsck_fix)
478 : bch_err_throw(c, fsck_ignore);
8b16413c 479
1ece5323
KO
480 printbuf_indent_add_nextline(out, 2);
481
482#ifdef BCACHEFS_LOG_PREFIX
483 if (strncmp(fmt, "bcachefs", 8))
484 prt_printf(out, bch2_log_msg(c, ""));
485#endif
486
9c5d38bb
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487 va_start(args, fmt);
488 prt_vprintf(out, fmt, args);
489 va_end(args);
490
19391b92
KO
491 /* Custom fix/continue/recreate/etc.? */
492 if (out->buf[out->pos - 1] == '?') {
493 const char *p = strrchr(out->buf, ',');
494 if (p) {
495 out->pos = p - out->buf;
496 action = kstrdup(p + 2, GFP_KERNEL);
497 if (!action) {
498 ret = -ENOMEM;
499 goto err;
500 }
501 }
502 }
503
f5d26fa3 504 mutex_lock(&c->fsck_error_msgs_lock);
7337f9f1
KO
505 bool repeat = false, print = true, suppress = false;
506 bool inconsistent = false, exiting = false;
507 struct fsck_err_state *s =
508 count_fsck_err_locked(c, err, buf.buf, &repeat, &print, &suppress);
509 if (repeat) {
510 ret = s->ret;
511 goto err_unlock;
e2ee3eaa 512 }
dbb9936b 513
052210c3 514 if ((flags & FSCK_AUTOFIX) &&
33dfafa9
KO
515 (c->opts.errors == BCH_ON_ERROR_continue ||
516 c->opts.errors == BCH_ON_ERROR_fix_safe)) {
517 prt_str(out, ", ");
052210c3
KO
518 if (flags & FSCK_CAN_FIX) {
519 prt_actioning(out, action);
09b9c72b 520 ret = bch_err_throw(c, fsck_fix);
052210c3
KO
521 } else {
522 prt_str(out, ", continuing");
09b9c72b 523 ret = bch_err_throw(c, fsck_ignore);
052210c3
KO
524 }
525
526 goto print;
367cad09 527 } else if (!test_bit(BCH_FS_in_fsck, &c->flags)) {
dbb9936b
KO
528 if (c->opts.errors != BCH_ON_ERROR_continue ||
529 !(flags & (FSCK_CAN_FIX|FSCK_CAN_IGNORE))) {
e5a3b8cf
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530 prt_str_indented(out, ", shutting down\n"
531 "error not marked as autofix and not in fsck\n"
532 "run fsck, and forward to devs so error can be marked for self-healing");
22f51621 533 inconsistent = true;
b00750c2 534 print = true;
09b9c72b 535 ret = bch_err_throw(c, fsck_errors_not_fixed);
dbb9936b 536 } else if (flags & FSCK_CAN_FIX) {
19391b92
KO
537 prt_str(out, ", ");
538 prt_actioning(out, action);
09b9c72b 539 ret = bch_err_throw(c, fsck_fix);
dbb9936b
KO
540 } else {
541 prt_str(out, ", continuing");
09b9c72b 542 ret = bch_err_throw(c, fsck_ignore);
dbb9936b 543 }
a0f8faea 544 } else if (c->opts.fix_errors == FSCK_FIX_exit) {
dbb9936b 545 prt_str(out, ", exiting");
09b9c72b 546 ret = bch_err_throw(c, fsck_errors_not_fixed);
0bc166ff 547 } else if (flags & FSCK_CAN_FIX) {
853b7393
KO
548 int fix = s && s->fix
549 ? s->fix
550 : c->opts.fix_errors;
551
a0f8faea 552 if (fix == FSCK_FIX_ask) {
dbb9936b 553 print = false;
853b7393 554
8b105909
KO
555 ret = do_fsck_ask_yn(c, trans, out, action);
556 if (ret < 0)
557 goto err_unlock;
853b7393 558
8b105909
KO
559 if (ret >= YN_ALLNO && s)
560 s->fix = ret == YN_ALLNO
a0f8faea
KO
561 ? FSCK_FIX_no
562 : FSCK_FIX_yes;
853b7393 563
8b105909 564 ret = ret & 1
09b9c72b
KO
565 ? bch_err_throw(c, fsck_fix)
566 : bch_err_throw(c, fsck_ignore);
a0f8faea 567 } else if (fix == FSCK_FIX_yes ||
1c6fdbd8
KO
568 (c->opts.nochanges &&
569 !(flags & FSCK_CAN_IGNORE))) {
19391b92
KO
570 prt_str(out, ", ");
571 prt_actioning(out, action);
09b9c72b 572 ret = bch_err_throw(c, fsck_fix);
1c6fdbd8 573 } else {
19391b92
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574 prt_str(out, ", not ");
575 prt_actioning(out, action);
09b9c72b 576 ret = bch_err_throw(c, fsck_ignore);
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577 }
578 } else {
579 if (flags & FSCK_CAN_IGNORE) {
580 prt_str(out, ", continuing");
09b9c72b 581 ret = bch_err_throw(c, fsck_ignore);
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582 } else {
583 prt_str(out, " (repair unimplemented)");
09b9c72b 584 ret = bch_err_throw(c, fsck_repair_unimplemented);
1c6fdbd8 585 }
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586 }
587
642c1aab 588 if (bch2_err_matches(ret, BCH_ERR_fsck_ignore) &&
a0f8faea 589 (c->opts.fix_errors == FSCK_FIX_exit ||
dbb9936b 590 !(flags & FSCK_CAN_IGNORE)))
09b9c72b 591 ret = bch_err_throw(c, fsck_errors_not_fixed);
dbb9936b 592
367cad09 593 if (test_bit(BCH_FS_in_fsck, &c->flags) &&
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594 (!bch2_err_matches(ret, BCH_ERR_fsck_fix) &&
595 !bch2_err_matches(ret, BCH_ERR_fsck_ignore))) {
052210c3 596 exiting = true;
492e24d7 597 print = true;
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598 }
599print:
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600 prt_newline(out);
601
602 if (inconsistent)
b00750c2 603 __bch2_inconsistent_error(c, out);
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604 else if (exiting)
605 prt_printf(out, "Unable to continue, halting\n");
7337f9f1 606 else if (suppress)
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607 prt_printf(out, "Ratelimiting new instances of previous error\n");
608
96f37eab 609 if (print) {
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610 /* possibly strip an empty line, from printbuf_indent_add */
611 while (out->pos && out->buf[out->pos - 1] == ' ')
612 --out->pos;
613 printbuf_nul_terminate(out);
614
96f37eab 615 if (bch2_fs_stdio_redirect(c))
b00750c2 616 bch2_print(c, "%s", out->buf);
96f37eab 617 else
ebf561b2 618 bch2_print_str(c, KERN_ERR, out->buf);
96f37eab 619 }
dbb9936b 620
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621 if (s)
622 s->ret = ret;
b43f7249 623
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624 if (trans &&
625 !(flags & FSCK_ERR_NO_LOG) &&
626 ret == -BCH_ERR_fsck_fix)
b43f7249 627 ret = bch2_trans_log_str(trans, bch2_sb_error_strs[err]) ?: ret;
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628err_unlock:
629 mutex_unlock(&c->fsck_error_msgs_lock);
630err:
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631 /*
632 * We don't yet track whether the filesystem currently has errors, for
633 * log_fsck_err()s: that would require us to track for every error type
634 * which recovery pass corrects it, to get the fsck exit status correct:
635 */
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636 if (bch2_err_matches(ret, BCH_ERR_transaction_restart)) {
637 /* nothing */
638 } else if (bch2_err_matches(ret, BCH_ERR_fsck_fix)) {
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639 set_bit(BCH_FS_errors_fixed, &c->flags);
640 } else {
641 set_bit(BCH_FS_errors_not_fixed, &c->flags);
642 set_bit(BCH_FS_error, &c->flags);
0bc166ff 643 }
642c1aab 644
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645 if (action != action_orig)
646 kfree(action);
647 printbuf_exit(&buf);
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648
649 BUG_ON(!ret);
dbb9936b 650 return ret;
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651}
652
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653static const char * const bch2_bkey_validate_contexts[] = {
654#define x(n) #n,
655 BKEY_VALIDATE_CONTEXTS()
656#undef x
657 NULL
658};
659
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660int __bch2_bkey_fsck_err(struct bch_fs *c,
661 struct bkey_s_c k,
a6f4794f 662 struct bkey_validate_context from,
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663 enum bch_sb_error_id err,
664 const char *fmt, ...)
665{
a6f4794f 666 if (from.flags & BCH_VALIDATE_silent)
09b9c72b 667 return bch_err_throw(c, fsck_delete_bkey);
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668
669 unsigned fsck_flags = 0;
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670 if (!(from.flags & (BCH_VALIDATE_write|BCH_VALIDATE_commit))) {
671 if (test_bit(err, c->sb.errors_silent))
09b9c72b 672 return bch_err_throw(c, fsck_delete_bkey);
1302eeb7 673
658c82f4 674 fsck_flags |= FSCK_AUTOFIX|FSCK_CAN_FIX;
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675 }
676 if (!WARN_ON(err >= ARRAY_SIZE(fsck_flags_extra)))
677 fsck_flags |= fsck_flags_extra[err];
658c82f4 678
d97de0d0 679 struct printbuf buf = PRINTBUF;
60558d55 680 prt_printf(&buf, "invalid bkey in %s",
a6f4794f 681 bch2_bkey_validate_contexts[from.from]);
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682
683 if (from.from == BKEY_VALIDATE_journal)
684 prt_printf(&buf, " journal seq=%llu offset=%u",
685 from.journal_seq, from.journal_offset);
686
687 prt_str(&buf, " btree=");
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688 bch2_btree_id_to_text(&buf, from.btree);
689 prt_printf(&buf, " level=%u: ", from.level);
690
d97de0d0 691 bch2_bkey_val_to_text(&buf, c, k);
1ece5323 692 prt_newline(&buf);
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693
694 va_list args;
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695 va_start(args, fmt);
696 prt_vprintf(&buf, fmt, args);
697 va_end(args);
1302eeb7 698
b00750c2 699 int ret = __bch2_fsck_err(c, NULL, fsck_flags, err, "%s, delete?", buf.buf);
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700 printbuf_exit(&buf);
701 return ret;
702}
703
417f01e7 704static void __bch2_flush_fsck_errs(struct bch_fs *c, bool print)
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705{
706 struct fsck_err_state *s, *n;
707
f5d26fa3 708 mutex_lock(&c->fsck_error_msgs_lock);
1c6fdbd8 709
f5d26fa3 710 list_for_each_entry_safe(s, n, &c->fsck_error_msgs, list) {
417f01e7 711 if (print && s->ratelimited && s->last_msg)
1ece5323 712 bch_err(c, "Saw %llu errors like:\n %s", s->nr, s->last_msg);
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713
714 list_del(&s->list);
9c5d38bb 715 kfree(s->last_msg);
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716 kfree(s);
717 }
718
f5d26fa3 719 mutex_unlock(&c->fsck_error_msgs_lock);
1c6fdbd8 720}
f7727a67 721
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722void bch2_flush_fsck_errs(struct bch_fs *c)
723{
724 __bch2_flush_fsck_errs(c, true);
725}
726
727void bch2_free_fsck_errs(struct bch_fs *c)
728{
729 __bch2_flush_fsck_errs(c, false);
730}
731
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732int bch2_inum_offset_err_msg_trans(struct btree_trans *trans, struct printbuf *out,
733 subvol_inum inum, u64 offset)
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734{
735 u32 restart_count = trans->restart_count;
736 int ret = 0;
737
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738 if (inum.subvol) {
739 ret = bch2_inum_to_path(trans, inum, out);
740 if (bch2_err_matches(ret, BCH_ERR_transaction_restart))
741 return ret;
742 }
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743 if (!inum.subvol || ret)
744 prt_printf(out, "inum %llu:%llu", inum.subvol, inum.inum);
f7727a67 745 prt_printf(out, " offset %llu: ", offset);
f7727a67 746
06284963 747 return trans_was_restarted(trans, restart_count);
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748}
749
750void bch2_inum_offset_err_msg(struct bch_fs *c, struct printbuf *out,
751 subvol_inum inum, u64 offset)
752{
06284963 753 bch2_trans_do(c, bch2_inum_offset_err_msg_trans(trans, out, inum, offset));
f7727a67 754}
45f0e6c8 755
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756int bch2_inum_snap_offset_err_msg_trans(struct btree_trans *trans, struct printbuf *out,
757 struct bpos pos)
45f0e6c8 758{
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759 int ret = bch2_inum_snapshot_to_path(trans, pos.inode, pos.snapshot, NULL, out);
760 if (ret)
761 return ret;
45f0e6c8 762
45f0e6c8 763 prt_printf(out, " offset %llu: ", pos.offset << 8);
06284963 764 return 0;
45f0e6c8 765}
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766
767void bch2_inum_snap_offset_err_msg(struct bch_fs *c, struct printbuf *out,
768 struct bpos pos)
769{
770 bch2_trans_do(c, bch2_inum_snap_offset_err_msg_trans(trans, out, pos));
771}