1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Copyright (c) 2014 Red Hat, Inc. |
4 | * All Rights Reserved. |
5 | */ |
6 | |
7 | #include "xfs.h" |
8 | #include "xfs_shared.h" |
9 | #include "xfs_format.h" |
10 | #include "xfs_log_format.h" |
11 | #include "xfs_trans_resv.h" |
12 | #include "xfs_sysfs.h" |
13 | #include "xfs_log.h" |
14 | #include "xfs_log_priv.h" |
15 | #include "xfs_mount.h" |
16 | |
17 | struct xfs_sysfs_attr { |
18 | struct attribute attr; |
19 | ssize_t (*show)(struct kobject *kobject, char *buf); |
20 | ssize_t (*store)(struct kobject *kobject, const char *buf, |
21 | size_t count); |
22 | }; |
23 | |
24 | static inline struct xfs_sysfs_attr * |
25 | to_attr(struct attribute *attr) |
26 | { |
27 | return container_of(attr, struct xfs_sysfs_attr, attr); |
28 | } |
29 | |
30 | #define XFS_SYSFS_ATTR_RW(name) \ |
31 | static struct xfs_sysfs_attr xfs_sysfs_attr_##name = __ATTR_RW(name) |
32 | #define XFS_SYSFS_ATTR_RO(name) \ |
33 | static struct xfs_sysfs_attr xfs_sysfs_attr_##name = __ATTR_RO(name) |
34 | #define XFS_SYSFS_ATTR_WO(name) \ |
35 | static struct xfs_sysfs_attr xfs_sysfs_attr_##name = __ATTR_WO(name) |
36 | |
37 | #define ATTR_LIST(name) &xfs_sysfs_attr_##name.attr |
38 | |
39 | STATIC ssize_t |
40 | xfs_sysfs_object_show( |
41 | struct kobject *kobject, |
42 | struct attribute *attr, |
43 | char *buf) |
44 | { |
45 | struct xfs_sysfs_attr *xfs_attr = to_attr(attr); |
46 | |
47 | return xfs_attr->show ? xfs_attr->show(kobject, buf) : 0; |
48 | } |
49 | |
50 | STATIC ssize_t |
51 | xfs_sysfs_object_store( |
52 | struct kobject *kobject, |
53 | struct attribute *attr, |
54 | const char *buf, |
55 | size_t count) |
56 | { |
57 | struct xfs_sysfs_attr *xfs_attr = to_attr(attr); |
58 | |
59 | return xfs_attr->store ? xfs_attr->store(kobject, buf, count) : 0; |
60 | } |
61 | |
62 | static const struct sysfs_ops xfs_sysfs_ops = { |
63 | .show = xfs_sysfs_object_show, |
64 | .store = xfs_sysfs_object_store, |
65 | }; |
66 | |
67 | static struct attribute *xfs_mp_attrs[] = { |
68 | NULL, |
69 | }; |
70 | ATTRIBUTE_GROUPS(xfs_mp); |
71 | |
72 | const struct kobj_type xfs_mp_ktype = { |
73 | .release = xfs_sysfs_release, |
74 | .sysfs_ops = &xfs_sysfs_ops, |
75 | .default_groups = xfs_mp_groups, |
76 | }; |
77 | |
78 | #ifdef DEBUG |
79 | /* debug */ |
80 | |
81 | STATIC ssize_t |
82 | bug_on_assert_store( |
83 | struct kobject *kobject, |
84 | const char *buf, |
85 | size_t count) |
86 | { |
87 | int ret; |
88 | int val; |
89 | |
90 | ret = kstrtoint(s: buf, base: 0, res: &val); |
91 | if (ret) |
92 | return ret; |
93 | |
94 | if (val == 1) |
95 | xfs_globals.bug_on_assert = true; |
96 | else if (val == 0) |
97 | xfs_globals.bug_on_assert = false; |
98 | else |
99 | return -EINVAL; |
100 | |
101 | return count; |
102 | } |
103 | |
104 | STATIC ssize_t |
105 | bug_on_assert_show( |
106 | struct kobject *kobject, |
107 | char *buf) |
108 | { |
109 | return sysfs_emit(buf, fmt: "%d\n" , xfs_globals.bug_on_assert); |
110 | } |
111 | XFS_SYSFS_ATTR_RW(bug_on_assert); |
112 | |
113 | STATIC ssize_t |
114 | log_recovery_delay_store( |
115 | struct kobject *kobject, |
116 | const char *buf, |
117 | size_t count) |
118 | { |
119 | int ret; |
120 | int val; |
121 | |
122 | ret = kstrtoint(s: buf, base: 0, res: &val); |
123 | if (ret) |
124 | return ret; |
125 | |
126 | if (val < 0 || val > 60) |
127 | return -EINVAL; |
128 | |
129 | xfs_globals.log_recovery_delay = val; |
130 | |
131 | return count; |
132 | } |
133 | |
134 | STATIC ssize_t |
135 | log_recovery_delay_show( |
136 | struct kobject *kobject, |
137 | char *buf) |
138 | { |
139 | return sysfs_emit(buf, fmt: "%d\n" , xfs_globals.log_recovery_delay); |
140 | } |
141 | XFS_SYSFS_ATTR_RW(log_recovery_delay); |
142 | |
143 | STATIC ssize_t |
144 | mount_delay_store( |
145 | struct kobject *kobject, |
146 | const char *buf, |
147 | size_t count) |
148 | { |
149 | int ret; |
150 | int val; |
151 | |
152 | ret = kstrtoint(s: buf, base: 0, res: &val); |
153 | if (ret) |
154 | return ret; |
155 | |
156 | if (val < 0 || val > 60) |
157 | return -EINVAL; |
158 | |
159 | xfs_globals.mount_delay = val; |
160 | |
161 | return count; |
162 | } |
163 | |
164 | STATIC ssize_t |
165 | mount_delay_show( |
166 | struct kobject *kobject, |
167 | char *buf) |
168 | { |
169 | return sysfs_emit(buf, fmt: "%d\n" , xfs_globals.mount_delay); |
170 | } |
171 | XFS_SYSFS_ATTR_RW(mount_delay); |
172 | |
173 | static ssize_t |
174 | always_cow_store( |
175 | struct kobject *kobject, |
176 | const char *buf, |
177 | size_t count) |
178 | { |
179 | ssize_t ret; |
180 | |
181 | ret = kstrtobool(s: buf, res: &xfs_globals.always_cow); |
182 | if (ret < 0) |
183 | return ret; |
184 | return count; |
185 | } |
186 | |
187 | static ssize_t |
188 | always_cow_show( |
189 | struct kobject *kobject, |
190 | char *buf) |
191 | { |
192 | return sysfs_emit(buf, fmt: "%d\n" , xfs_globals.always_cow); |
193 | } |
194 | XFS_SYSFS_ATTR_RW(always_cow); |
195 | |
196 | #ifdef DEBUG |
197 | /* |
198 | * Override how many threads the parallel work queue is allowed to create. |
199 | * This has to be a debug-only global (instead of an errortag) because one of |
200 | * the main users of parallel workqueues is mount time quotacheck. |
201 | */ |
202 | STATIC ssize_t |
203 | pwork_threads_store( |
204 | struct kobject *kobject, |
205 | const char *buf, |
206 | size_t count) |
207 | { |
208 | int ret; |
209 | int val; |
210 | |
211 | ret = kstrtoint(s: buf, base: 0, res: &val); |
212 | if (ret) |
213 | return ret; |
214 | |
215 | if (val < -1 || val > num_possible_cpus()) |
216 | return -EINVAL; |
217 | |
218 | xfs_globals.pwork_threads = val; |
219 | |
220 | return count; |
221 | } |
222 | |
223 | STATIC ssize_t |
224 | pwork_threads_show( |
225 | struct kobject *kobject, |
226 | char *buf) |
227 | { |
228 | return sysfs_emit(buf, fmt: "%d\n" , xfs_globals.pwork_threads); |
229 | } |
230 | XFS_SYSFS_ATTR_RW(pwork_threads); |
231 | |
232 | static ssize_t |
233 | larp_store( |
234 | struct kobject *kobject, |
235 | const char *buf, |
236 | size_t count) |
237 | { |
238 | ssize_t ret; |
239 | |
240 | ret = kstrtobool(s: buf, res: &xfs_globals.larp); |
241 | if (ret < 0) |
242 | return ret; |
243 | return count; |
244 | } |
245 | |
246 | STATIC ssize_t |
247 | larp_show( |
248 | struct kobject *kobject, |
249 | char *buf) |
250 | { |
251 | return snprintf(buf, PAGE_SIZE, fmt: "%d\n" , xfs_globals.larp); |
252 | } |
253 | XFS_SYSFS_ATTR_RW(larp); |
254 | #endif /* DEBUG */ |
255 | |
256 | static struct attribute *xfs_dbg_attrs[] = { |
257 | ATTR_LIST(bug_on_assert), |
258 | ATTR_LIST(log_recovery_delay), |
259 | ATTR_LIST(mount_delay), |
260 | ATTR_LIST(always_cow), |
261 | #ifdef DEBUG |
262 | ATTR_LIST(pwork_threads), |
263 | ATTR_LIST(larp), |
264 | #endif |
265 | NULL, |
266 | }; |
267 | ATTRIBUTE_GROUPS(xfs_dbg); |
268 | |
269 | const struct kobj_type xfs_dbg_ktype = { |
270 | .release = xfs_sysfs_release, |
271 | .sysfs_ops = &xfs_sysfs_ops, |
272 | .default_groups = xfs_dbg_groups, |
273 | }; |
274 | |
275 | #endif /* DEBUG */ |
276 | |
277 | /* stats */ |
278 | |
279 | static inline struct xstats * |
280 | to_xstats(struct kobject *kobject) |
281 | { |
282 | struct xfs_kobj *kobj = to_kobj(kobject); |
283 | |
284 | return container_of(kobj, struct xstats, xs_kobj); |
285 | } |
286 | |
287 | STATIC ssize_t |
288 | stats_show( |
289 | struct kobject *kobject, |
290 | char *buf) |
291 | { |
292 | struct xstats *stats = to_xstats(kobject); |
293 | |
294 | return xfs_stats_format(stats: stats->xs_stats, buf); |
295 | } |
296 | XFS_SYSFS_ATTR_RO(stats); |
297 | |
298 | STATIC ssize_t |
299 | stats_clear_store( |
300 | struct kobject *kobject, |
301 | const char *buf, |
302 | size_t count) |
303 | { |
304 | int ret; |
305 | int val; |
306 | struct xstats *stats = to_xstats(kobject); |
307 | |
308 | ret = kstrtoint(s: buf, base: 0, res: &val); |
309 | if (ret) |
310 | return ret; |
311 | |
312 | if (val != 1) |
313 | return -EINVAL; |
314 | |
315 | xfs_stats_clearall(stats: stats->xs_stats); |
316 | return count; |
317 | } |
318 | XFS_SYSFS_ATTR_WO(stats_clear); |
319 | |
320 | static struct attribute *xfs_stats_attrs[] = { |
321 | ATTR_LIST(stats), |
322 | ATTR_LIST(stats_clear), |
323 | NULL, |
324 | }; |
325 | ATTRIBUTE_GROUPS(xfs_stats); |
326 | |
327 | const struct kobj_type xfs_stats_ktype = { |
328 | .release = xfs_sysfs_release, |
329 | .sysfs_ops = &xfs_sysfs_ops, |
330 | .default_groups = xfs_stats_groups, |
331 | }; |
332 | |
333 | /* xlog */ |
334 | |
335 | static inline struct xlog * |
336 | to_xlog(struct kobject *kobject) |
337 | { |
338 | struct xfs_kobj *kobj = to_kobj(kobject); |
339 | |
340 | return container_of(kobj, struct xlog, l_kobj); |
341 | } |
342 | |
343 | STATIC ssize_t |
344 | log_head_lsn_show( |
345 | struct kobject *kobject, |
346 | char *buf) |
347 | { |
348 | int cycle; |
349 | int block; |
350 | struct xlog *log = to_xlog(kobject); |
351 | |
352 | spin_lock(lock: &log->l_icloglock); |
353 | cycle = log->l_curr_cycle; |
354 | block = log->l_curr_block; |
355 | spin_unlock(lock: &log->l_icloglock); |
356 | |
357 | return sysfs_emit(buf, fmt: "%d:%d\n" , cycle, block); |
358 | } |
359 | XFS_SYSFS_ATTR_RO(log_head_lsn); |
360 | |
361 | STATIC ssize_t |
362 | log_tail_lsn_show( |
363 | struct kobject *kobject, |
364 | char *buf) |
365 | { |
366 | int cycle; |
367 | int block; |
368 | struct xlog *log = to_xlog(kobject); |
369 | |
370 | xlog_crack_atomic_lsn(lsn: &log->l_tail_lsn, cycle: &cycle, block: &block); |
371 | return sysfs_emit(buf, fmt: "%d:%d\n" , cycle, block); |
372 | } |
373 | XFS_SYSFS_ATTR_RO(log_tail_lsn); |
374 | |
375 | STATIC ssize_t |
376 | reserve_grant_head_show( |
377 | struct kobject *kobject, |
378 | char *buf) |
379 | |
380 | { |
381 | int cycle; |
382 | int bytes; |
383 | struct xlog *log = to_xlog(kobject); |
384 | |
385 | xlog_crack_grant_head(head: &log->l_reserve_head.grant, cycle: &cycle, space: &bytes); |
386 | return sysfs_emit(buf, fmt: "%d:%d\n" , cycle, bytes); |
387 | } |
388 | XFS_SYSFS_ATTR_RO(reserve_grant_head); |
389 | |
390 | STATIC ssize_t |
391 | write_grant_head_show( |
392 | struct kobject *kobject, |
393 | char *buf) |
394 | { |
395 | int cycle; |
396 | int bytes; |
397 | struct xlog *log = to_xlog(kobject); |
398 | |
399 | xlog_crack_grant_head(head: &log->l_write_head.grant, cycle: &cycle, space: &bytes); |
400 | return sysfs_emit(buf, fmt: "%d:%d\n" , cycle, bytes); |
401 | } |
402 | XFS_SYSFS_ATTR_RO(write_grant_head); |
403 | |
404 | static struct attribute *xfs_log_attrs[] = { |
405 | ATTR_LIST(log_head_lsn), |
406 | ATTR_LIST(log_tail_lsn), |
407 | ATTR_LIST(reserve_grant_head), |
408 | ATTR_LIST(write_grant_head), |
409 | NULL, |
410 | }; |
411 | ATTRIBUTE_GROUPS(xfs_log); |
412 | |
413 | const struct kobj_type xfs_log_ktype = { |
414 | .release = xfs_sysfs_release, |
415 | .sysfs_ops = &xfs_sysfs_ops, |
416 | .default_groups = xfs_log_groups, |
417 | }; |
418 | |
419 | /* |
420 | * Metadata IO error configuration |
421 | * |
422 | * The sysfs structure here is: |
423 | * ...xfs/<dev>/error/<class>/<errno>/<error_attrs> |
424 | * |
425 | * where <class> allows us to discriminate between data IO and metadata IO, |
426 | * and any other future type of IO (e.g. special inode or directory error |
427 | * handling) we care to support. |
428 | */ |
429 | static inline struct xfs_error_cfg * |
430 | to_error_cfg(struct kobject *kobject) |
431 | { |
432 | struct xfs_kobj *kobj = to_kobj(kobject); |
433 | return container_of(kobj, struct xfs_error_cfg, kobj); |
434 | } |
435 | |
436 | static inline struct xfs_mount * |
437 | err_to_mp(struct kobject *kobject) |
438 | { |
439 | struct xfs_kobj *kobj = to_kobj(kobject); |
440 | return container_of(kobj, struct xfs_mount, m_error_kobj); |
441 | } |
442 | |
443 | static ssize_t |
444 | max_retries_show( |
445 | struct kobject *kobject, |
446 | char *buf) |
447 | { |
448 | int retries; |
449 | struct xfs_error_cfg *cfg = to_error_cfg(kobject); |
450 | |
451 | if (cfg->max_retries == XFS_ERR_RETRY_FOREVER) |
452 | retries = -1; |
453 | else |
454 | retries = cfg->max_retries; |
455 | |
456 | return sysfs_emit(buf, fmt: "%d\n" , retries); |
457 | } |
458 | |
459 | static ssize_t |
460 | max_retries_store( |
461 | struct kobject *kobject, |
462 | const char *buf, |
463 | size_t count) |
464 | { |
465 | struct xfs_error_cfg *cfg = to_error_cfg(kobject); |
466 | int ret; |
467 | int val; |
468 | |
469 | ret = kstrtoint(s: buf, base: 0, res: &val); |
470 | if (ret) |
471 | return ret; |
472 | |
473 | if (val < -1) |
474 | return -EINVAL; |
475 | |
476 | if (val == -1) |
477 | cfg->max_retries = XFS_ERR_RETRY_FOREVER; |
478 | else |
479 | cfg->max_retries = val; |
480 | return count; |
481 | } |
482 | XFS_SYSFS_ATTR_RW(max_retries); |
483 | |
484 | static ssize_t |
485 | retry_timeout_seconds_show( |
486 | struct kobject *kobject, |
487 | char *buf) |
488 | { |
489 | int timeout; |
490 | struct xfs_error_cfg *cfg = to_error_cfg(kobject); |
491 | |
492 | if (cfg->retry_timeout == XFS_ERR_RETRY_FOREVER) |
493 | timeout = -1; |
494 | else |
495 | timeout = jiffies_to_msecs(j: cfg->retry_timeout) / MSEC_PER_SEC; |
496 | |
497 | return sysfs_emit(buf, fmt: "%d\n" , timeout); |
498 | } |
499 | |
500 | static ssize_t |
501 | retry_timeout_seconds_store( |
502 | struct kobject *kobject, |
503 | const char *buf, |
504 | size_t count) |
505 | { |
506 | struct xfs_error_cfg *cfg = to_error_cfg(kobject); |
507 | int ret; |
508 | int val; |
509 | |
510 | ret = kstrtoint(s: buf, base: 0, res: &val); |
511 | if (ret) |
512 | return ret; |
513 | |
514 | /* 1 day timeout maximum, -1 means infinite */ |
515 | if (val < -1 || val > 86400) |
516 | return -EINVAL; |
517 | |
518 | if (val == -1) |
519 | cfg->retry_timeout = XFS_ERR_RETRY_FOREVER; |
520 | else { |
521 | cfg->retry_timeout = msecs_to_jiffies(m: val * MSEC_PER_SEC); |
522 | ASSERT(msecs_to_jiffies(val * MSEC_PER_SEC) < LONG_MAX); |
523 | } |
524 | return count; |
525 | } |
526 | XFS_SYSFS_ATTR_RW(retry_timeout_seconds); |
527 | |
528 | static ssize_t |
529 | fail_at_unmount_show( |
530 | struct kobject *kobject, |
531 | char *buf) |
532 | { |
533 | struct xfs_mount *mp = err_to_mp(kobject); |
534 | |
535 | return sysfs_emit(buf, fmt: "%d\n" , mp->m_fail_unmount); |
536 | } |
537 | |
538 | static ssize_t |
539 | fail_at_unmount_store( |
540 | struct kobject *kobject, |
541 | const char *buf, |
542 | size_t count) |
543 | { |
544 | struct xfs_mount *mp = err_to_mp(kobject); |
545 | int ret; |
546 | int val; |
547 | |
548 | ret = kstrtoint(s: buf, base: 0, res: &val); |
549 | if (ret) |
550 | return ret; |
551 | |
552 | if (val < 0 || val > 1) |
553 | return -EINVAL; |
554 | |
555 | mp->m_fail_unmount = val; |
556 | return count; |
557 | } |
558 | XFS_SYSFS_ATTR_RW(fail_at_unmount); |
559 | |
560 | static struct attribute *xfs_error_attrs[] = { |
561 | ATTR_LIST(max_retries), |
562 | ATTR_LIST(retry_timeout_seconds), |
563 | NULL, |
564 | }; |
565 | ATTRIBUTE_GROUPS(xfs_error); |
566 | |
567 | static const struct kobj_type xfs_error_cfg_ktype = { |
568 | .release = xfs_sysfs_release, |
569 | .sysfs_ops = &xfs_sysfs_ops, |
570 | .default_groups = xfs_error_groups, |
571 | }; |
572 | |
573 | static const struct kobj_type xfs_error_ktype = { |
574 | .release = xfs_sysfs_release, |
575 | .sysfs_ops = &xfs_sysfs_ops, |
576 | }; |
577 | |
578 | /* |
579 | * Error initialization tables. These need to be ordered in the same |
580 | * order as the enums used to index the array. All class init tables need to |
581 | * define a "default" behaviour as the first entry, all other entries can be |
582 | * empty. |
583 | */ |
584 | struct xfs_error_init { |
585 | char *name; |
586 | int max_retries; |
587 | int retry_timeout; /* in seconds */ |
588 | }; |
589 | |
590 | static const struct xfs_error_init xfs_error_meta_init[XFS_ERR_ERRNO_MAX] = { |
591 | { .name = "default" , |
592 | .max_retries = XFS_ERR_RETRY_FOREVER, |
593 | .retry_timeout = XFS_ERR_RETRY_FOREVER, |
594 | }, |
595 | { .name = "EIO" , |
596 | .max_retries = XFS_ERR_RETRY_FOREVER, |
597 | .retry_timeout = XFS_ERR_RETRY_FOREVER, |
598 | }, |
599 | { .name = "ENOSPC" , |
600 | .max_retries = XFS_ERR_RETRY_FOREVER, |
601 | .retry_timeout = XFS_ERR_RETRY_FOREVER, |
602 | }, |
603 | { .name = "ENODEV" , |
604 | .max_retries = 0, /* We can't recover from devices disappearing */ |
605 | .retry_timeout = 0, |
606 | }, |
607 | }; |
608 | |
609 | static int |
610 | xfs_error_sysfs_init_class( |
611 | struct xfs_mount *mp, |
612 | int class, |
613 | const char *parent_name, |
614 | struct xfs_kobj *parent_kobj, |
615 | const struct xfs_error_init init[]) |
616 | { |
617 | struct xfs_error_cfg *cfg; |
618 | int error; |
619 | int i; |
620 | |
621 | ASSERT(class < XFS_ERR_CLASS_MAX); |
622 | |
623 | error = xfs_sysfs_init(kobj: parent_kobj, ktype: &xfs_error_ktype, |
624 | parent_kobj: &mp->m_error_kobj, name: parent_name); |
625 | if (error) |
626 | return error; |
627 | |
628 | for (i = 0; i < XFS_ERR_ERRNO_MAX; i++) { |
629 | cfg = &mp->m_error_cfg[class][i]; |
630 | error = xfs_sysfs_init(kobj: &cfg->kobj, ktype: &xfs_error_cfg_ktype, |
631 | parent_kobj, name: init[i].name); |
632 | if (error) |
633 | goto out_error; |
634 | |
635 | cfg->max_retries = init[i].max_retries; |
636 | if (init[i].retry_timeout == XFS_ERR_RETRY_FOREVER) |
637 | cfg->retry_timeout = XFS_ERR_RETRY_FOREVER; |
638 | else |
639 | cfg->retry_timeout = msecs_to_jiffies( |
640 | m: init[i].retry_timeout * MSEC_PER_SEC); |
641 | } |
642 | return 0; |
643 | |
644 | out_error: |
645 | /* unwind the entries that succeeded */ |
646 | for (i--; i >= 0; i--) { |
647 | cfg = &mp->m_error_cfg[class][i]; |
648 | xfs_sysfs_del(kobj: &cfg->kobj); |
649 | } |
650 | xfs_sysfs_del(kobj: parent_kobj); |
651 | return error; |
652 | } |
653 | |
654 | int |
655 | xfs_error_sysfs_init( |
656 | struct xfs_mount *mp) |
657 | { |
658 | int error; |
659 | |
660 | /* .../xfs/<dev>/error/ */ |
661 | error = xfs_sysfs_init(kobj: &mp->m_error_kobj, ktype: &xfs_error_ktype, |
662 | parent_kobj: &mp->m_kobj, name: "error" ); |
663 | if (error) |
664 | return error; |
665 | |
666 | error = sysfs_create_file(kobj: &mp->m_error_kobj.kobject, |
667 | ATTR_LIST(fail_at_unmount)); |
668 | |
669 | if (error) |
670 | goto out_error; |
671 | |
672 | /* .../xfs/<dev>/error/metadata/ */ |
673 | error = xfs_error_sysfs_init_class(mp, class: XFS_ERR_METADATA, |
674 | parent_name: "metadata" , parent_kobj: &mp->m_error_meta_kobj, |
675 | init: xfs_error_meta_init); |
676 | if (error) |
677 | goto out_error; |
678 | |
679 | return 0; |
680 | |
681 | out_error: |
682 | xfs_sysfs_del(kobj: &mp->m_error_kobj); |
683 | return error; |
684 | } |
685 | |
686 | void |
687 | xfs_error_sysfs_del( |
688 | struct xfs_mount *mp) |
689 | { |
690 | struct xfs_error_cfg *cfg; |
691 | int i, j; |
692 | |
693 | for (i = 0; i < XFS_ERR_CLASS_MAX; i++) { |
694 | for (j = 0; j < XFS_ERR_ERRNO_MAX; j++) { |
695 | cfg = &mp->m_error_cfg[i][j]; |
696 | |
697 | xfs_sysfs_del(kobj: &cfg->kobj); |
698 | } |
699 | } |
700 | xfs_sysfs_del(kobj: &mp->m_error_meta_kobj); |
701 | xfs_sysfs_del(kobj: &mp->m_error_kobj); |
702 | } |
703 | |
704 | struct xfs_error_cfg * |
705 | xfs_error_get_cfg( |
706 | struct xfs_mount *mp, |
707 | int error_class, |
708 | int error) |
709 | { |
710 | struct xfs_error_cfg *cfg; |
711 | |
712 | if (error < 0) |
713 | error = -error; |
714 | |
715 | switch (error) { |
716 | case EIO: |
717 | cfg = &mp->m_error_cfg[error_class][XFS_ERR_EIO]; |
718 | break; |
719 | case ENOSPC: |
720 | cfg = &mp->m_error_cfg[error_class][XFS_ERR_ENOSPC]; |
721 | break; |
722 | case ENODEV: |
723 | cfg = &mp->m_error_cfg[error_class][XFS_ERR_ENODEV]; |
724 | break; |
725 | default: |
726 | cfg = &mp->m_error_cfg[error_class][XFS_ERR_DEFAULT]; |
727 | break; |
728 | } |
729 | |
730 | return cfg; |
731 | } |
732 | |