4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/obdclass/llog_cat.c
38 * OST<->MDS recovery logging infrastructure.
40 * Invariants in implementation:
41 * - we do not share logs among different OST<->MDS connections, so that
42 * if an OST or MDS fails it need only look at log(s) relevant to itself
44 * Author: Andreas Dilger <adilger@clusterfs.com>
45 * Author: Alexey Zhuravlev <alexey.zhuravlev@intel.com>
46 * Author: Mikhail Pershin <mike.pershin@intel.com>
49 #define DEBUG_SUBSYSTEM S_LOG
52 #include <liblustre.h>
55 #include <obd_class.h>
57 #include "llog_internal.h"
59 /* Create a new log handle and add it to the open list.
60 * This log handle will be closed when all of the records in it are removed.
62 * Assumes caller has already pushed us into the kernel context and is locking.
64 static int llog_cat_new_log(const struct lu_env *env,
65 struct llog_handle *cathandle,
66 struct llog_handle *loghandle,
70 struct llog_log_hdr *llh;
71 struct llog_logid_rec rec = { { 0 }, };
72 int rc, index, bitmap_size;
75 llh = cathandle->lgh_hdr;
76 bitmap_size = LLOG_BITMAP_SIZE(llh);
78 index = (cathandle->lgh_last_idx + 1) % bitmap_size;
80 /* maximum number of available slots in catlog is bitmap_size - 2 */
81 if (llh->llh_cat_idx == index) {
82 CERROR("no free catalog slots for log...\n");
86 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_LLOG_CREATE_FAILED))
89 rc = llog_create(env, loghandle, th);
90 /* if llog is already created, no need to initialize it */
94 CERROR("%s: can't create new plain llog in catalog: rc = %d\n",
95 loghandle->lgh_ctxt->loc_obd->obd_name, rc);
99 rc = llog_init_handle(env, loghandle,
100 LLOG_F_IS_PLAIN | LLOG_F_ZAP_WHEN_EMPTY,
101 &cathandle->lgh_hdr->llh_tgtuuid);
103 GOTO(out_destroy, rc);
108 spin_lock(&loghandle->lgh_hdr_lock);
110 if (ext2_set_bit(index, llh->llh_bitmap)) {
111 CERROR("argh, index %u already set in log bitmap?\n",
113 spin_unlock(&loghandle->lgh_hdr_lock);
114 LBUG(); /* should never happen */
116 spin_unlock(&loghandle->lgh_hdr_lock);
118 cathandle->lgh_last_idx = index;
119 llh->llh_tail.lrt_index = index;
121 CDEBUG(D_RPCTRACE,"new recovery log "DOSTID":%x for index %u of catalog"
122 DOSTID"\n", POSTID(&loghandle->lgh_id.lgl_oi),
123 loghandle->lgh_id.lgl_ogen, index,
124 POSTID(&cathandle->lgh_id.lgl_oi));
125 /* build the record for this log in the catalog */
126 rec.lid_hdr.lrh_len = sizeof(rec);
127 rec.lid_hdr.lrh_index = index;
128 rec.lid_hdr.lrh_type = LLOG_LOGID_MAGIC;
129 rec.lid_id = loghandle->lgh_id;
130 rec.lid_tail.lrt_len = sizeof(rec);
131 rec.lid_tail.lrt_index = index;
133 /* update the catalog: header and record */
134 rc = llog_write_rec(env, cathandle, &rec.lid_hdr,
135 &loghandle->u.phd.phd_cookie, 1, NULL, index, th);
137 GOTO(out_destroy, rc);
139 loghandle->lgh_hdr->llh_cat_idx = index;
142 llog_destroy(env, loghandle);
146 /* Open an existent log handle and add it to the open list.
147 * This log handle will be closed when all of the records in it are removed.
149 * Assumes caller has already pushed us into the kernel context and is locking.
150 * We return a lock on the handle to ensure nobody yanks it from us.
152 * This takes extra reference on llog_handle via llog_handle_get() and require
153 * this reference to be put by caller using llog_handle_put()
155 int llog_cat_id2handle(const struct lu_env *env, struct llog_handle *cathandle,
156 struct llog_handle **res, struct llog_logid *logid)
158 struct llog_handle *loghandle;
163 if (cathandle == NULL)
166 down_write(&cathandle->lgh_lock);
167 cfs_list_for_each_entry(loghandle, &cathandle->u.chd.chd_head,
169 struct llog_logid *cgl = &loghandle->lgh_id;
171 if (ostid_id(&cgl->lgl_oi) == ostid_id(&logid->lgl_oi) &&
172 ostid_seq(&cgl->lgl_oi) == ostid_seq(&logid->lgl_oi)) {
173 if (cgl->lgl_ogen != logid->lgl_ogen) {
174 CERROR("%s: log "DOSTID" generation %x != %x\n",
175 loghandle->lgh_ctxt->loc_obd->obd_name,
176 POSTID(&logid->lgl_oi), cgl->lgl_ogen,
180 loghandle->u.phd.phd_cat_handle = cathandle;
181 up_write(&cathandle->lgh_lock);
185 up_write(&cathandle->lgh_lock);
187 rc = llog_open(env, cathandle->lgh_ctxt, &loghandle, logid, NULL,
190 CERROR("%s: error opening log id "DOSTID":%x: rc = %d\n",
191 cathandle->lgh_ctxt->loc_obd->obd_name,
192 POSTID(&logid->lgl_oi), logid->lgl_ogen, rc);
196 rc = llog_init_handle(env, loghandle, LLOG_F_IS_PLAIN, NULL);
198 llog_close(env, loghandle);
203 down_write(&cathandle->lgh_lock);
204 cfs_list_add(&loghandle->u.phd.phd_entry, &cathandle->u.chd.chd_head);
205 up_write(&cathandle->lgh_lock);
207 loghandle->u.phd.phd_cat_handle = cathandle;
208 loghandle->u.phd.phd_cookie.lgc_lgl = cathandle->lgh_id;
209 loghandle->u.phd.phd_cookie.lgc_index =
210 loghandle->lgh_hdr->llh_cat_idx;
213 llog_handle_get(loghandle);
218 int llog_cat_close(const struct lu_env *env, struct llog_handle *cathandle)
220 struct llog_handle *loghandle, *n;
225 cfs_list_for_each_entry_safe(loghandle, n, &cathandle->u.chd.chd_head,
227 struct llog_log_hdr *llh = loghandle->lgh_hdr;
230 /* unlink open-not-created llogs */
231 cfs_list_del_init(&loghandle->u.phd.phd_entry);
232 llh = loghandle->lgh_hdr;
233 if (loghandle->lgh_obj != NULL && llh != NULL &&
234 (llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
235 (llh->llh_count == 1)) {
236 rc = llog_destroy(env, loghandle);
238 CERROR("%s: failure destroying log during "
239 "cleanup: rc = %d\n",
240 loghandle->lgh_ctxt->loc_obd->obd_name,
243 index = loghandle->u.phd.phd_cookie.lgc_index;
244 llog_cat_cleanup(env, cathandle, NULL, index);
246 llog_close(env, loghandle);
248 /* if handle was stored in ctxt, remove it too */
249 if (cathandle->lgh_ctxt->loc_handle == cathandle)
250 cathandle->lgh_ctxt->loc_handle = NULL;
251 rc = llog_close(env, cathandle);
254 EXPORT_SYMBOL(llog_cat_close);
257 * lockdep markers for nested struct llog_handle::lgh_lock locking.
264 /** Return the currently active log handle. If the current log handle doesn't
265 * have enough space left for the current record, start a new one.
267 * If reclen is 0, we only want to know what the currently active log is,
268 * otherwise we get a lock on this log so nobody can steal our space.
270 * Assumes caller has already pushed us into the kernel context and is locking.
272 * NOTE: loghandle is write-locked upon successful return
274 static struct llog_handle *llog_cat_current_log(struct llog_handle *cathandle,
277 struct llog_handle *loghandle = NULL;
280 down_read_nested(&cathandle->lgh_lock, LLOGH_CAT);
281 loghandle = cathandle->u.chd.chd_current_log;
283 struct llog_log_hdr *llh;
285 down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
286 llh = loghandle->lgh_hdr;
288 loghandle->lgh_last_idx < LLOG_BITMAP_SIZE(llh) - 1) {
289 up_read(&cathandle->lgh_lock);
292 up_write(&loghandle->lgh_lock);
295 up_read(&cathandle->lgh_lock);
297 /* time to use next log */
299 /* first, we have to make sure the state hasn't changed */
300 down_write_nested(&cathandle->lgh_lock, LLOGH_CAT);
301 loghandle = cathandle->u.chd.chd_current_log;
303 struct llog_log_hdr *llh;
305 down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
306 llh = loghandle->lgh_hdr;
308 if (loghandle->lgh_last_idx < LLOG_BITMAP_SIZE(llh) - 1) {
309 up_write(&cathandle->lgh_lock);
312 up_write(&loghandle->lgh_lock);
316 CDEBUG(D_INODE, "use next log\n");
318 loghandle = cathandle->u.chd.chd_next_log;
319 cathandle->u.chd.chd_current_log = loghandle;
320 cathandle->u.chd.chd_next_log = NULL;
321 down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
322 up_write(&cathandle->lgh_lock);
327 /* Add a single record to the recovery log(s) using a catalog
328 * Returns as llog_write_record
330 * Assumes caller has already pushed us into the kernel context.
332 int llog_cat_add_rec(const struct lu_env *env, struct llog_handle *cathandle,
333 struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
334 void *buf, struct thandle *th)
336 struct llog_handle *loghandle;
340 LASSERT(rec->lrh_len <= LLOG_CHUNK_SIZE);
341 loghandle = llog_cat_current_log(cathandle, th);
342 LASSERT(!IS_ERR(loghandle));
344 /* loghandle is already locked by llog_cat_current_log() for us */
345 if (!llog_exist(loghandle)) {
346 rc = llog_cat_new_log(env, cathandle, loghandle, th);
348 up_write(&loghandle->lgh_lock);
352 /* now let's try to add the record */
353 rc = llog_write_rec(env, loghandle, rec, reccookie, 1, buf, -1, th);
355 CDEBUG_LIMIT(rc == -ENOSPC ? D_HA : D_ERROR,
356 "llog_write_rec %d: lh=%p\n", rc, loghandle);
357 up_write(&loghandle->lgh_lock);
359 /* try to use next log */
360 loghandle = llog_cat_current_log(cathandle, th);
361 LASSERT(!IS_ERR(loghandle));
362 /* new llog can be created concurrently */
363 if (!llog_exist(loghandle)) {
364 rc = llog_cat_new_log(env, cathandle, loghandle, th);
366 up_write(&loghandle->lgh_lock);
370 /* now let's try to add the record */
371 rc = llog_write_rec(env, loghandle, rec, reccookie, 1, buf,
374 CERROR("llog_write_rec %d: lh=%p\n", rc, loghandle);
375 up_write(&loghandle->lgh_lock);
380 EXPORT_SYMBOL(llog_cat_add_rec);
382 int llog_cat_declare_add_rec(const struct lu_env *env,
383 struct llog_handle *cathandle,
384 struct llog_rec_hdr *rec, struct thandle *th)
386 struct llog_handle *loghandle, *next;
391 if (cathandle->u.chd.chd_current_log == NULL) {
392 /* declare new plain llog */
393 down_write(&cathandle->lgh_lock);
394 if (cathandle->u.chd.chd_current_log == NULL) {
395 rc = llog_open(env, cathandle->lgh_ctxt, &loghandle,
396 NULL, NULL, LLOG_OPEN_NEW);
398 cathandle->u.chd.chd_current_log = loghandle;
399 cfs_list_add_tail(&loghandle->u.phd.phd_entry,
400 &cathandle->u.chd.chd_head);
403 up_write(&cathandle->lgh_lock);
404 } else if (cathandle->u.chd.chd_next_log == NULL) {
405 /* declare next plain llog */
406 down_write(&cathandle->lgh_lock);
407 if (cathandle->u.chd.chd_next_log == NULL) {
408 rc = llog_open(env, cathandle->lgh_ctxt, &loghandle,
409 NULL, NULL, LLOG_OPEN_NEW);
411 cathandle->u.chd.chd_next_log = loghandle;
412 cfs_list_add_tail(&loghandle->u.phd.phd_entry,
413 &cathandle->u.chd.chd_head);
416 up_write(&cathandle->lgh_lock);
421 if (!llog_exist(cathandle->u.chd.chd_current_log)) {
422 rc = llog_declare_create(env, cathandle->u.chd.chd_current_log,
426 llog_declare_write_rec(env, cathandle, NULL, -1, th);
428 /* declare records in the llogs */
429 rc = llog_declare_write_rec(env, cathandle->u.chd.chd_current_log,
434 next = cathandle->u.chd.chd_next_log;
436 if (!llog_exist(next)) {
437 rc = llog_declare_create(env, next, th);
438 llog_declare_write_rec(env, cathandle, NULL, -1, th);
440 llog_declare_write_rec(env, next, rec, -1, th);
445 EXPORT_SYMBOL(llog_cat_declare_add_rec);
447 int llog_cat_add(const struct lu_env *env, struct llog_handle *cathandle,
448 struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
451 struct llog_ctxt *ctxt;
452 struct dt_device *dt;
453 struct thandle *th = NULL;
456 ctxt = cathandle->lgh_ctxt;
458 LASSERT(ctxt->loc_exp);
460 if (cathandle->lgh_obj != NULL) {
461 dt = ctxt->loc_exp->exp_obd->obd_lvfs_ctxt.dt;
464 th = dt_trans_create(env, dt);
468 rc = llog_cat_declare_add_rec(env, cathandle, rec, th);
472 rc = dt_trans_start_local(env, dt, th);
475 rc = llog_cat_add_rec(env, cathandle, rec, reccookie, buf, th);
477 dt_trans_stop(env, dt, th);
478 } else { /* lvfs compat code */
479 LASSERT(cathandle->lgh_file != NULL);
480 rc = llog_cat_declare_add_rec(env, cathandle, rec, th);
482 rc = llog_cat_add_rec(env, cathandle, rec, reccookie,
487 EXPORT_SYMBOL(llog_cat_add);
489 /* For each cookie in the cookie array, we clear the log in-use bit and either:
490 * - the log is empty, so mark it free in the catalog header and delete it
491 * - the log is not empty, just write out the log header
493 * The cookies may be in different log files, so we need to get new logs
496 * Assumes caller has already pushed us into the kernel context.
498 int llog_cat_cancel_records(const struct lu_env *env,
499 struct llog_handle *cathandle, int count,
500 struct llog_cookie *cookies)
502 int i, index, rc = 0, failed = 0;
506 for (i = 0; i < count; i++, cookies++) {
507 struct llog_handle *loghandle;
508 struct llog_logid *lgl = &cookies->lgc_lgl;
511 rc = llog_cat_id2handle(env, cathandle, &loghandle, lgl);
513 CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
514 cathandle->lgh_ctxt->loc_obd->obd_name,
515 POSTID(&lgl->lgl_oi), rc);
520 lrc = llog_cancel_rec(env, loghandle, cookies->lgc_index);
521 if (lrc == 1) { /* log has been destroyed */
522 index = loghandle->u.phd.phd_cookie.lgc_index;
523 rc = llog_cat_cleanup(env, cathandle, loghandle,
525 } else if (lrc == -ENOENT) {
526 if (rc == 0) /* ENOENT shouldn't rewrite any error */
528 } else if (lrc < 0) {
532 llog_handle_put(loghandle);
535 CERROR("%s: fail to cancel %d of %d llog-records: rc = %d\n",
536 cathandle->lgh_ctxt->loc_obd->obd_name, failed, count,
541 EXPORT_SYMBOL(llog_cat_cancel_records);
543 int llog_cat_process_cb(const struct lu_env *env, struct llog_handle *cat_llh,
544 struct llog_rec_hdr *rec, void *data)
546 struct llog_process_data *d = data;
547 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
548 struct llog_handle *llh;
552 if (rec->lrh_type != LLOG_LOGID_MAGIC) {
553 CERROR("invalid record in catalog\n");
556 CDEBUG(D_HA, "processing log "DOSTID":%x at index %u of catalog "
557 DOSTID"\n", POSTID(&lir->lid_id.lgl_oi), lir->lid_id.lgl_ogen,
558 rec->lrh_index, POSTID(&cat_llh->lgh_id.lgl_oi));
560 rc = llog_cat_id2handle(env, cat_llh, &llh, &lir->lid_id);
562 CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
563 cat_llh->lgh_ctxt->loc_obd->obd_name,
564 POSTID(&lir->lid_id.lgl_oi), rc);
568 if (rec->lrh_index < d->lpd_startcat)
569 /* Skip processing of the logs until startcat */
572 if (d->lpd_startidx > 0) {
573 struct llog_process_cat_data cd;
575 cd.lpcd_first_idx = d->lpd_startidx;
576 cd.lpcd_last_idx = 0;
577 rc = llog_process_or_fork(env, llh, d->lpd_cb, d->lpd_data,
579 /* Continue processing the next log from idx 0 */
582 rc = llog_process_or_fork(env, llh, d->lpd_cb, d->lpd_data,
585 llog_handle_put(llh);
590 int llog_cat_process_or_fork(const struct lu_env *env,
591 struct llog_handle *cat_llh,
592 llog_cb_t cb, void *data, int startcat,
593 int startidx, bool fork)
595 struct llog_process_data d;
596 struct llog_log_hdr *llh = cat_llh->lgh_hdr;
600 LASSERT(llh->llh_flags & LLOG_F_IS_CAT);
603 d.lpd_startcat = startcat;
604 d.lpd_startidx = startidx;
606 if (llh->llh_cat_idx > cat_llh->lgh_last_idx) {
607 struct llog_process_cat_data cd;
609 CWARN("catlog "DOSTID" crosses index zero\n",
610 POSTID(&cat_llh->lgh_id.lgl_oi));
612 cd.lpcd_first_idx = llh->llh_cat_idx;
613 cd.lpcd_last_idx = 0;
614 rc = llog_process_or_fork(env, cat_llh, llog_cat_process_cb,
619 cd.lpcd_first_idx = 0;
620 cd.lpcd_last_idx = cat_llh->lgh_last_idx;
621 rc = llog_process_or_fork(env, cat_llh, llog_cat_process_cb,
624 rc = llog_process_or_fork(env, cat_llh, llog_cat_process_cb,
630 EXPORT_SYMBOL(llog_cat_process_or_fork);
632 int llog_cat_process(const struct lu_env *env, struct llog_handle *cat_llh,
633 llog_cb_t cb, void *data, int startcat, int startidx)
635 return llog_cat_process_or_fork(env, cat_llh, cb, data, startcat,
638 EXPORT_SYMBOL(llog_cat_process);
640 static int llog_cat_reverse_process_cb(const struct lu_env *env,
641 struct llog_handle *cat_llh,
642 struct llog_rec_hdr *rec, void *data)
644 struct llog_process_data *d = data;
645 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
646 struct llog_handle *llh;
649 if (le32_to_cpu(rec->lrh_type) != LLOG_LOGID_MAGIC) {
650 CERROR("invalid record in catalog\n");
653 CDEBUG(D_HA, "processing log "DOSTID":%x at index %u of catalog "
654 DOSTID"\n", POSTID(&lir->lid_id.lgl_oi), lir->lid_id.lgl_ogen,
655 le32_to_cpu(rec->lrh_index), POSTID(&cat_llh->lgh_id.lgl_oi));
657 rc = llog_cat_id2handle(env, cat_llh, &llh, &lir->lid_id);
659 CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
660 cat_llh->lgh_ctxt->loc_obd->obd_name,
661 POSTID(&lir->lid_id.lgl_oi), rc);
665 rc = llog_reverse_process(env, llh, d->lpd_cb, d->lpd_data, NULL);
666 llog_handle_put(llh);
670 int llog_cat_reverse_process(const struct lu_env *env,
671 struct llog_handle *cat_llh,
672 llog_cb_t cb, void *data)
674 struct llog_process_data d;
675 struct llog_process_cat_data cd;
676 struct llog_log_hdr *llh = cat_llh->lgh_hdr;
680 LASSERT(llh->llh_flags & LLOG_F_IS_CAT);
684 if (llh->llh_cat_idx > cat_llh->lgh_last_idx) {
685 CWARN("catalog "DOSTID" crosses index zero\n",
686 POSTID(&cat_llh->lgh_id.lgl_oi));
688 cd.lpcd_first_idx = 0;
689 cd.lpcd_last_idx = cat_llh->lgh_last_idx;
690 rc = llog_reverse_process(env, cat_llh,
691 llog_cat_reverse_process_cb,
696 cd.lpcd_first_idx = le32_to_cpu(llh->llh_cat_idx);
697 cd.lpcd_last_idx = 0;
698 rc = llog_reverse_process(env, cat_llh,
699 llog_cat_reverse_process_cb,
702 rc = llog_reverse_process(env, cat_llh,
703 llog_cat_reverse_process_cb,
709 EXPORT_SYMBOL(llog_cat_reverse_process);
711 int llog_cat_set_first_idx(struct llog_handle *cathandle, int index)
713 struct llog_log_hdr *llh = cathandle->lgh_hdr;
714 int i, bitmap_size, idx;
717 bitmap_size = LLOG_BITMAP_SIZE(llh);
718 if (llh->llh_cat_idx == (index - 1)) {
719 idx = llh->llh_cat_idx + 1;
720 llh->llh_cat_idx = idx;
721 if (idx == cathandle->lgh_last_idx)
723 for (i = (index + 1) % bitmap_size;
724 i != cathandle->lgh_last_idx;
725 i = (i + 1) % bitmap_size) {
726 if (!ext2_test_bit(i, llh->llh_bitmap)) {
727 idx = llh->llh_cat_idx + 1;
728 llh->llh_cat_idx = idx;
730 llh->llh_cat_idx = 0;
736 CDEBUG(D_RPCTRACE, "set catlog "DOSTID" first idx %u\n",
737 POSTID(&cathandle->lgh_id.lgl_oi), llh->llh_cat_idx);
743 /* Cleanup deleted plain llog traces from catalog */
744 int llog_cat_cleanup(const struct lu_env *env, struct llog_handle *cathandle,
745 struct llog_handle *loghandle, int index)
750 if (loghandle != NULL) {
751 /* remove destroyed llog from catalog list and
752 * chd_current_log variable */
753 down_write(&cathandle->lgh_lock);
754 if (cathandle->u.chd.chd_current_log == loghandle)
755 cathandle->u.chd.chd_current_log = NULL;
756 cfs_list_del_init(&loghandle->u.phd.phd_entry);
757 up_write(&cathandle->lgh_lock);
758 LASSERT(index == loghandle->u.phd.phd_cookie.lgc_index);
759 /* llog was opened and keep in a list, close it now */
760 llog_close(env, loghandle);
762 /* remove plain llog entry from catalog by index */
763 llog_cat_set_first_idx(cathandle, index);
764 rc = llog_cancel_rec(env, cathandle, index);
766 CDEBUG(D_HA, "cancel plain log at index"
767 " %u of catalog "DOSTID"\n",
768 index, POSTID(&cathandle->lgh_id.lgl_oi));
772 int cat_cancel_cb(const struct lu_env *env, struct llog_handle *cathandle,
773 struct llog_rec_hdr *rec, void *data)
775 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
776 struct llog_handle *loghandle;
777 struct llog_log_hdr *llh;
782 if (rec->lrh_type != LLOG_LOGID_MAGIC) {
783 CERROR("invalid record in catalog\n");
787 CDEBUG(D_HA, "processing log "DOSTID":%x at index %u of catalog "
788 DOSTID"\n", POSTID(&lir->lid_id.lgl_oi), lir->lid_id.lgl_ogen,
789 rec->lrh_index, POSTID(&cathandle->lgh_id.lgl_oi));
791 rc = llog_cat_id2handle(env, cathandle, &loghandle, &lir->lid_id);
793 CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
794 cathandle->lgh_ctxt->loc_obd->obd_name,
795 POSTID(&lir->lid_id.lgl_oi), rc);
796 if (rc == -ENOENT || rc == -ESTALE) {
797 /* remove index from catalog */
798 llog_cat_cleanup(env, cathandle, NULL, rec->lrh_index);
803 llh = loghandle->lgh_hdr;
804 if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
805 (llh->llh_count == 1)) {
806 rc = llog_destroy(env, loghandle);
808 CERROR("%s: fail to destroy empty log: rc = %d\n",
809 loghandle->lgh_ctxt->loc_obd->obd_name, rc);
811 llog_cat_cleanup(env, cathandle, loghandle,
812 loghandle->u.phd.phd_cookie.lgc_index);
814 llog_handle_put(loghandle);
818 EXPORT_SYMBOL(cat_cancel_cb);
820 /* helper to initialize catalog llog and process it to cancel */
821 int llog_cat_init_and_process(const struct lu_env *env,
822 struct llog_handle *llh)
826 rc = llog_init_handle(env, llh, LLOG_F_IS_CAT, NULL);
830 rc = llog_process_or_fork(env, llh, cat_cancel_cb, NULL, NULL, false);
832 CERROR("%s: llog_process() with cat_cancel_cb failed: rc = "
833 "%d\n", llh->lgh_ctxt->loc_obd->obd_name, rc);
836 EXPORT_SYMBOL(llog_cat_init_and_process);