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,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License version 2 for more details. A copy is
14 * included in the COPYING file that accompanied this code.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * Copyright (c) 2012, 2013, Intel Corporation.
26 * lustre/lfsck/lfsck_lib.c
28 * Author: Fan, Yong <fan.yong@intel.com>
31 #define DEBUG_SUBSYSTEM S_LFSCK
33 #include <libcfs/list.h>
34 #include <lu_object.h>
35 #include <dt_object.h>
36 #include <md_object.h>
37 #include <lustre_fld.h>
38 #include <lustre_lib.h>
39 #include <lustre_net.h>
40 #include <lustre_lfsck.h>
41 #include <lustre/lustre_lfsck_user.h>
43 #include "lfsck_internal.h"
45 /* define lfsck thread key */
46 LU_KEY_INIT(lfsck, struct lfsck_thread_info);
48 static void lfsck_key_fini(const struct lu_context *ctx,
49 struct lu_context_key *key, void *data)
51 struct lfsck_thread_info *info = data;
53 lu_buf_free(&info->lti_linkea_buf);
54 lu_buf_free(&info->lti_big_buf);
58 LU_CONTEXT_KEY_DEFINE(lfsck, LCT_MD_THREAD | LCT_DT_THREAD);
59 LU_KEY_INIT_GENERIC(lfsck);
61 static CFS_LIST_HEAD(lfsck_instance_list);
62 static struct list_head lfsck_ost_orphan_list;
63 static struct list_head lfsck_mdt_orphan_list;
64 static DEFINE_SPINLOCK(lfsck_instance_lock);
66 static const char *lfsck_status_names[] = {
68 [LS_SCANNING_PHASE1] = "scanning-phase1",
69 [LS_SCANNING_PHASE2] = "scanning-phase2",
70 [LS_COMPLETED] = "completed",
71 [LS_FAILED] = "failed",
72 [LS_STOPPED] = "stopped",
73 [LS_PAUSED] = "paused",
74 [LS_CRASHED] = "crashed",
75 [LS_PARTIAL] = "partial",
76 [LS_CO_FAILED] = "co-failed",
77 [LS_CO_STOPPED] = "co-stopped",
78 [LS_CO_PAUSED] = "co-paused"
81 const char *lfsck_flags_names[] = {
90 const char *lfsck_param_names[] = {
98 const char *lfsck_status2names(enum lfsck_status status)
100 if (unlikely(status < 0 || status >= LS_MAX))
103 return lfsck_status_names[status];
106 static int lfsck_tgt_descs_init(struct lfsck_tgt_descs *ltds)
108 spin_lock_init(<ds->ltd_lock);
109 init_rwsem(<ds->ltd_rw_sem);
110 INIT_LIST_HEAD(<ds->ltd_orphan);
111 ltds->ltd_tgts_bitmap = CFS_ALLOCATE_BITMAP(BITS_PER_LONG);
112 if (ltds->ltd_tgts_bitmap == NULL)
118 static void lfsck_tgt_descs_fini(struct lfsck_tgt_descs *ltds)
120 struct lfsck_tgt_desc *ltd;
121 struct lfsck_tgt_desc *next;
124 down_write(<ds->ltd_rw_sem);
126 list_for_each_entry_safe(ltd, next, <ds->ltd_orphan,
128 list_del_init(<d->ltd_orphan_list);
132 if (unlikely(ltds->ltd_tgts_bitmap == NULL)) {
133 up_write(<ds->ltd_rw_sem);
138 cfs_foreach_bit(ltds->ltd_tgts_bitmap, idx) {
139 ltd = LTD_TGT(ltds, idx);
140 if (likely(ltd != NULL)) {
141 LASSERT(list_empty(<d->ltd_layout_list));
142 LASSERT(list_empty(<d->ltd_layout_phase_list));
145 cfs_bitmap_clear(ltds->ltd_tgts_bitmap, idx);
146 LTD_TGT(ltds, idx) = NULL;
151 LASSERTF(ltds->ltd_tgtnr == 0, "tgt count unmatched: %d\n",
154 for (idx = 0; idx < TGT_PTRS; idx++) {
155 if (ltds->ltd_tgts_idx[idx] != NULL) {
156 OBD_FREE_PTR(ltds->ltd_tgts_idx[idx]);
157 ltds->ltd_tgts_idx[idx] = NULL;
161 CFS_FREE_BITMAP(ltds->ltd_tgts_bitmap);
162 ltds->ltd_tgts_bitmap = NULL;
163 up_write(<ds->ltd_rw_sem);
166 static int __lfsck_add_target(const struct lu_env *env,
167 struct lfsck_instance *lfsck,
168 struct lfsck_tgt_desc *ltd,
169 bool for_ost, bool locked)
171 struct lfsck_tgt_descs *ltds;
172 __u32 index = ltd->ltd_index;
177 ltds = &lfsck->li_ost_descs;
179 ltds = &lfsck->li_mdt_descs;
182 down_write(<ds->ltd_rw_sem);
184 LASSERT(ltds->ltd_tgts_bitmap != NULL);
186 if (index >= ltds->ltd_tgts_bitmap->size) {
187 __u32 newsize = max((__u32)ltds->ltd_tgts_bitmap->size,
188 (__u32)BITS_PER_LONG);
189 cfs_bitmap_t *old_bitmap = ltds->ltd_tgts_bitmap;
190 cfs_bitmap_t *new_bitmap;
192 while (newsize < index + 1)
195 new_bitmap = CFS_ALLOCATE_BITMAP(newsize);
196 if (new_bitmap == NULL)
197 GOTO(unlock, rc = -ENOMEM);
199 if (ltds->ltd_tgtnr > 0)
200 cfs_bitmap_copy(new_bitmap, old_bitmap);
201 ltds->ltd_tgts_bitmap = new_bitmap;
202 CFS_FREE_BITMAP(old_bitmap);
205 if (cfs_bitmap_check(ltds->ltd_tgts_bitmap, index)) {
206 CERROR("%s: the device %s (%u) is registered already\n",
207 lfsck_lfsck2name(lfsck),
208 ltd->ltd_tgt->dd_lu_dev.ld_obd->obd_name, index);
209 GOTO(unlock, rc = -EEXIST);
212 if (ltds->ltd_tgts_idx[index / TGT_PTRS_PER_BLOCK] == NULL) {
213 OBD_ALLOC_PTR(ltds->ltd_tgts_idx[index / TGT_PTRS_PER_BLOCK]);
214 if (ltds->ltd_tgts_idx[index / TGT_PTRS_PER_BLOCK] == NULL)
215 GOTO(unlock, rc = -ENOMEM);
218 LTD_TGT(ltds, index) = ltd;
219 cfs_bitmap_set(ltds->ltd_tgts_bitmap, index);
222 GOTO(unlock, rc = 0);
226 up_write(<ds->ltd_rw_sem);
231 static int lfsck_add_target_from_orphan(const struct lu_env *env,
232 struct lfsck_instance *lfsck)
234 struct lfsck_tgt_descs *ltds = &lfsck->li_ost_descs;
235 struct lfsck_tgt_desc *ltd;
236 struct lfsck_tgt_desc *next;
237 struct list_head *head = &lfsck_ost_orphan_list;
242 spin_lock(&lfsck_instance_lock);
243 list_for_each_entry_safe(ltd, next, head, ltd_orphan_list) {
244 if (ltd->ltd_key == lfsck->li_bottom) {
245 list_del_init(<d->ltd_orphan_list);
246 list_add_tail(<d->ltd_orphan_list,
250 spin_unlock(&lfsck_instance_lock);
252 down_write(<ds->ltd_rw_sem);
253 while (!list_empty(<ds->ltd_orphan)) {
254 ltd = list_entry(ltds->ltd_orphan.next,
255 struct lfsck_tgt_desc,
257 list_del_init(<d->ltd_orphan_list);
258 rc = __lfsck_add_target(env, lfsck, ltd, for_ost, true);
259 /* Do not hold the semaphore for too long time. */
260 up_write(<ds->ltd_rw_sem);
264 down_write(<ds->ltd_rw_sem);
266 up_write(<ds->ltd_rw_sem);
269 ltds = &lfsck->li_mdt_descs;
270 head = &lfsck_mdt_orphan_list;
278 static inline struct lfsck_component *
279 __lfsck_component_find(struct lfsck_instance *lfsck, __u16 type, cfs_list_t *list)
281 struct lfsck_component *com;
283 cfs_list_for_each_entry(com, list, lc_link) {
284 if (com->lc_type == type)
290 static struct lfsck_component *
291 lfsck_component_find(struct lfsck_instance *lfsck, __u16 type)
293 struct lfsck_component *com;
295 spin_lock(&lfsck->li_lock);
296 com = __lfsck_component_find(lfsck, type, &lfsck->li_list_scan);
300 com = __lfsck_component_find(lfsck, type,
301 &lfsck->li_list_double_scan);
305 com = __lfsck_component_find(lfsck, type, &lfsck->li_list_idle);
309 lfsck_component_get(com);
310 spin_unlock(&lfsck->li_lock);
314 void lfsck_component_cleanup(const struct lu_env *env,
315 struct lfsck_component *com)
317 if (!cfs_list_empty(&com->lc_link))
318 cfs_list_del_init(&com->lc_link);
319 if (!cfs_list_empty(&com->lc_link_dir))
320 cfs_list_del_init(&com->lc_link_dir);
322 lfsck_component_put(env, com);
325 void lfsck_instance_cleanup(const struct lu_env *env,
326 struct lfsck_instance *lfsck)
328 struct ptlrpc_thread *thread = &lfsck->li_thread;
329 struct lfsck_component *com;
332 LASSERT(list_empty(&lfsck->li_link));
333 LASSERT(thread_is_init(thread) || thread_is_stopped(thread));
335 if (lfsck->li_obj_oit != NULL) {
336 lu_object_put_nocache(env, &lfsck->li_obj_oit->do_lu);
337 lfsck->li_obj_oit = NULL;
340 LASSERT(lfsck->li_obj_dir == NULL);
342 while (!cfs_list_empty(&lfsck->li_list_scan)) {
343 com = cfs_list_entry(lfsck->li_list_scan.next,
344 struct lfsck_component,
346 lfsck_component_cleanup(env, com);
349 LASSERT(cfs_list_empty(&lfsck->li_list_dir));
351 while (!cfs_list_empty(&lfsck->li_list_double_scan)) {
352 com = cfs_list_entry(lfsck->li_list_double_scan.next,
353 struct lfsck_component,
355 lfsck_component_cleanup(env, com);
358 while (!cfs_list_empty(&lfsck->li_list_idle)) {
359 com = cfs_list_entry(lfsck->li_list_idle.next,
360 struct lfsck_component,
362 lfsck_component_cleanup(env, com);
365 lfsck_tgt_descs_fini(&lfsck->li_ost_descs);
366 lfsck_tgt_descs_fini(&lfsck->li_mdt_descs);
368 if (lfsck->li_bookmark_obj != NULL) {
369 lu_object_put_nocache(env, &lfsck->li_bookmark_obj->do_lu);
370 lfsck->li_bookmark_obj = NULL;
373 if (lfsck->li_los != NULL) {
374 local_oid_storage_fini(env, lfsck->li_los);
375 lfsck->li_los = NULL;
381 static inline struct lfsck_instance *
382 __lfsck_instance_find(struct dt_device *key, bool ref, bool unlink)
384 struct lfsck_instance *lfsck;
386 cfs_list_for_each_entry(lfsck, &lfsck_instance_list, li_link) {
387 if (lfsck->li_bottom == key) {
389 lfsck_instance_get(lfsck);
391 list_del_init(&lfsck->li_link);
400 static inline struct lfsck_instance *lfsck_instance_find(struct dt_device *key,
401 bool ref, bool unlink)
403 struct lfsck_instance *lfsck;
405 spin_lock(&lfsck_instance_lock);
406 lfsck = __lfsck_instance_find(key, ref, unlink);
407 spin_unlock(&lfsck_instance_lock);
412 static inline int lfsck_instance_add(struct lfsck_instance *lfsck)
414 struct lfsck_instance *tmp;
416 spin_lock(&lfsck_instance_lock);
417 cfs_list_for_each_entry(tmp, &lfsck_instance_list, li_link) {
418 if (lfsck->li_bottom == tmp->li_bottom) {
419 spin_unlock(&lfsck_instance_lock);
424 cfs_list_add_tail(&lfsck->li_link, &lfsck_instance_list);
425 spin_unlock(&lfsck_instance_lock);
429 int lfsck_bits_dump(char **buf, int *len, int bits, const char *names[],
437 rc = snprintf(*buf, *len, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
443 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
446 if (names[i] != NULL) {
447 rc = snprintf(*buf, *len, "%s%c", names[i],
448 bits != 0 ? ',' : '\n');
460 int lfsck_time_dump(char **buf, int *len, __u64 time, const char *prefix)
465 rc = snprintf(*buf, *len, "%s: "LPU64" seconds\n", prefix,
466 cfs_time_current_sec() - time);
468 rc = snprintf(*buf, *len, "%s: N/A\n", prefix);
477 int lfsck_pos_dump(char **buf, int *len, struct lfsck_position *pos,
482 if (fid_is_zero(&pos->lp_dir_parent)) {
483 if (pos->lp_oit_cookie == 0)
484 rc = snprintf(*buf, *len, "%s: N/A, N/A, N/A\n",
487 rc = snprintf(*buf, *len, "%s: "LPU64", N/A, N/A\n",
488 prefix, pos->lp_oit_cookie);
490 rc = snprintf(*buf, *len, "%s: "LPU64", "DFID", "LPU64"\n",
491 prefix, pos->lp_oit_cookie,
492 PFID(&pos->lp_dir_parent), pos->lp_dir_cookie);
502 void lfsck_pos_fill(const struct lu_env *env, struct lfsck_instance *lfsck,
503 struct lfsck_position *pos, bool init)
505 const struct dt_it_ops *iops = &lfsck->li_obj_oit->do_index_ops->dio_it;
507 if (unlikely(lfsck->li_di_oit == NULL)) {
508 memset(pos, 0, sizeof(*pos));
512 pos->lp_oit_cookie = iops->store(env, lfsck->li_di_oit);
513 if (!lfsck->li_current_oit_processed && !init)
514 pos->lp_oit_cookie--;
516 LASSERT(pos->lp_oit_cookie > 0);
518 if (lfsck->li_di_dir != NULL) {
519 struct dt_object *dto = lfsck->li_obj_dir;
521 pos->lp_dir_cookie = dto->do_index_ops->dio_it.store(env,
524 if (pos->lp_dir_cookie >= MDS_DIR_END_OFF) {
525 fid_zero(&pos->lp_dir_parent);
526 pos->lp_dir_cookie = 0;
528 pos->lp_dir_parent = *lfsck_dto2fid(dto);
531 fid_zero(&pos->lp_dir_parent);
532 pos->lp_dir_cookie = 0;
536 static void __lfsck_set_speed(struct lfsck_instance *lfsck, __u32 limit)
538 lfsck->li_bookmark_ram.lb_speed_limit = limit;
539 if (limit != LFSCK_SPEED_NO_LIMIT) {
541 lfsck->li_sleep_rate = limit / HZ;
542 lfsck->li_sleep_jif = 1;
544 lfsck->li_sleep_rate = 1;
545 lfsck->li_sleep_jif = HZ / limit;
548 lfsck->li_sleep_jif = 0;
549 lfsck->li_sleep_rate = 0;
553 void lfsck_control_speed(struct lfsck_instance *lfsck)
555 struct ptlrpc_thread *thread = &lfsck->li_thread;
556 struct l_wait_info lwi;
558 if (lfsck->li_sleep_jif > 0 &&
559 lfsck->li_new_scanned >= lfsck->li_sleep_rate) {
560 lwi = LWI_TIMEOUT_INTR(lfsck->li_sleep_jif, NULL,
561 LWI_ON_SIGNAL_NOOP, NULL);
563 l_wait_event(thread->t_ctl_waitq,
564 !thread_is_running(thread),
566 lfsck->li_new_scanned = 0;
570 void lfsck_control_speed_by_self(struct lfsck_component *com)
572 struct lfsck_instance *lfsck = com->lc_lfsck;
573 struct ptlrpc_thread *thread = &lfsck->li_thread;
574 struct l_wait_info lwi;
576 if (lfsck->li_sleep_jif > 0 &&
577 com->lc_new_scanned >= lfsck->li_sleep_rate) {
578 lwi = LWI_TIMEOUT_INTR(lfsck->li_sleep_jif, NULL,
579 LWI_ON_SIGNAL_NOOP, NULL);
581 l_wait_event(thread->t_ctl_waitq,
582 !thread_is_running(thread),
584 com->lc_new_scanned = 0;
588 static int lfsck_parent_fid(const struct lu_env *env, struct dt_object *obj,
591 if (unlikely(!S_ISDIR(lfsck_object_type(obj)) ||
592 !dt_try_as_dir(env, obj)))
595 return dt_lookup(env, obj, (struct dt_rec *)fid,
596 (const struct dt_key *)"..", BYPASS_CAPA);
599 static int lfsck_needs_scan_dir(const struct lu_env *env,
600 struct lfsck_instance *lfsck,
601 struct dt_object *obj)
603 struct lu_fid *fid = &lfsck_env_info(env)->lti_fid;
607 if (!lfsck->li_master || !S_ISDIR(lfsck_object_type(obj)) ||
608 cfs_list_empty(&lfsck->li_list_dir))
612 /* XXX: Currently, we do not scan the "/REMOTE_PARENT_DIR",
613 * which is the agent directory to manage the objects
614 * which name entries reside on remote MDTs. Related
615 * consistency verification will be processed in LFSCK
617 if (lu_fid_eq(lfsck_dto2fid(obj), &lfsck->li_global_root_fid)) {
619 lfsck_object_put(env, obj);
623 /* .lustre doesn't contain "real" user objects, no need lfsck */
624 if (fid_is_dot_lustre(lfsck_dto2fid(obj))) {
626 lfsck_object_put(env, obj);
630 dt_read_lock(env, obj, MOR_TGT_CHILD);
631 if (unlikely(lfsck_is_dead_obj(obj))) {
632 dt_read_unlock(env, obj);
634 lfsck_object_put(env, obj);
638 rc = dt_xattr_get(env, obj,
639 lfsck_buf_get(env, NULL, 0), XATTR_NAME_LINK,
641 dt_read_unlock(env, obj);
644 lfsck_object_put(env, obj);
648 if (rc < 0 && rc != -ENODATA) {
650 lfsck_object_put(env, obj);
654 rc = lfsck_parent_fid(env, obj, fid);
656 lfsck_object_put(env, obj);
660 if (unlikely(lu_fid_eq(fid, &lfsck->li_local_root_fid)))
663 obj = lfsck_object_find(env, lfsck, fid);
666 else if (IS_ERR(obj))
669 if (!dt_object_exists(obj)) {
670 lfsck_object_put(env, obj);
674 /* Currently, only client visible directory can be remote. */
675 if (dt_object_remote(obj)) {
676 lfsck_object_put(env, obj);
685 struct lfsck_thread_args *lfsck_thread_args_init(struct lfsck_instance *lfsck,
686 struct lfsck_component *com,
687 struct lfsck_start_param *lsp)
689 struct lfsck_thread_args *lta;
694 return ERR_PTR(-ENOMEM);
696 rc = lu_env_init(<a->lta_env, LCT_MD_THREAD | LCT_DT_THREAD);
702 lta->lta_lfsck = lfsck_instance_get(lfsck);
704 lta->lta_com = lfsck_component_get(com);
711 void lfsck_thread_args_fini(struct lfsck_thread_args *lta)
713 if (lta->lta_com != NULL)
714 lfsck_component_put(<a->lta_env, lta->lta_com);
715 lfsck_instance_put(<a->lta_env, lta->lta_lfsck);
716 lu_env_fini(<a->lta_env);
720 /* LFSCK wrap functions */
722 void lfsck_fail(const struct lu_env *env, struct lfsck_instance *lfsck,
725 struct lfsck_component *com;
727 cfs_list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
728 com->lc_ops->lfsck_fail(env, com, new_checked);
732 int lfsck_checkpoint(const struct lu_env *env, struct lfsck_instance *lfsck)
734 struct lfsck_component *com;
738 if (likely(cfs_time_beforeq(cfs_time_current(),
739 lfsck->li_time_next_checkpoint)))
742 lfsck_pos_fill(env, lfsck, &lfsck->li_pos_current, false);
743 cfs_list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
744 rc = com->lc_ops->lfsck_checkpoint(env, com, false);
749 lfsck->li_time_last_checkpoint = cfs_time_current();
750 lfsck->li_time_next_checkpoint = lfsck->li_time_last_checkpoint +
751 cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
752 return rc1 != 0 ? rc1 : rc;
755 int lfsck_prep(const struct lu_env *env, struct lfsck_instance *lfsck,
756 struct lfsck_start_param *lsp)
758 struct dt_object *obj = NULL;
759 struct lfsck_component *com;
760 struct lfsck_component *next;
761 struct lfsck_position *pos = NULL;
762 const struct dt_it_ops *iops =
763 &lfsck->li_obj_oit->do_index_ops->dio_it;
768 LASSERT(lfsck->li_obj_dir == NULL);
769 LASSERT(lfsck->li_di_dir == NULL);
771 lfsck->li_current_oit_processed = 0;
772 cfs_list_for_each_entry_safe(com, next, &lfsck->li_list_scan, lc_link) {
773 com->lc_new_checked = 0;
774 if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
777 rc = com->lc_ops->lfsck_prep(env, com, lsp);
782 (!lfsck_pos_is_zero(&com->lc_pos_start) &&
783 lfsck_pos_is_eq(pos, &com->lc_pos_start) > 0))
784 pos = &com->lc_pos_start;
787 /* Init otable-based iterator. */
789 rc = iops->load(env, lfsck->li_di_oit, 0);
791 lfsck->li_oit_over = 1;
798 rc = iops->load(env, lfsck->li_di_oit, pos->lp_oit_cookie);
802 lfsck->li_oit_over = 1;
804 if (!lfsck->li_master || fid_is_zero(&pos->lp_dir_parent))
807 /* Find the directory for namespace-based traverse. */
808 obj = lfsck_object_find(env, lfsck, &pos->lp_dir_parent);
811 else if (IS_ERR(obj))
812 RETURN(PTR_ERR(obj));
814 /* XXX: Currently, skip remote object, the consistency for
815 * remote object will be processed in LFSCK phase III. */
816 if (!dt_object_exists(obj) || dt_object_remote(obj) ||
817 unlikely(!S_ISDIR(lfsck_object_type(obj))))
820 if (unlikely(!dt_try_as_dir(env, obj)))
821 GOTO(out, rc = -ENOTDIR);
823 /* Init the namespace-based directory traverse. */
824 iops = &obj->do_index_ops->dio_it;
825 di = iops->init(env, obj, lfsck->li_args_dir, BYPASS_CAPA);
827 GOTO(out, rc = PTR_ERR(di));
829 LASSERT(pos->lp_dir_cookie < MDS_DIR_END_OFF);
831 rc = iops->load(env, di, pos->lp_dir_cookie);
832 if ((rc == 0) || (rc > 0 && pos->lp_dir_cookie > 0))
833 rc = iops->next(env, di);
843 lfsck->li_obj_dir = lfsck_object_get(obj);
844 lfsck->li_cookie_dir = iops->store(env, di);
845 spin_lock(&lfsck->li_lock);
846 lfsck->li_di_dir = di;
847 spin_unlock(&lfsck->li_lock);
853 lfsck_object_put(env, obj);
856 cfs_list_for_each_entry_safe(com, next, &lfsck->li_list_scan,
858 com->lc_ops->lfsck_post(env, com, rc, true);
864 lfsck_pos_fill(env, lfsck, &lfsck->li_pos_current, true);
865 cfs_list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
866 rc = com->lc_ops->lfsck_checkpoint(env, com, true);
871 lfsck->li_time_last_checkpoint = cfs_time_current();
872 lfsck->li_time_next_checkpoint = lfsck->li_time_last_checkpoint +
873 cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
877 int lfsck_exec_oit(const struct lu_env *env, struct lfsck_instance *lfsck,
878 struct dt_object *obj)
880 struct lfsck_component *com;
881 const struct dt_it_ops *iops;
886 LASSERT(lfsck->li_obj_dir == NULL);
888 cfs_list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
889 rc = com->lc_ops->lfsck_exec_oit(env, com, obj);
894 rc = lfsck_needs_scan_dir(env, lfsck, obj);
898 if (unlikely(!dt_try_as_dir(env, obj)))
899 GOTO(out, rc = -ENOTDIR);
901 iops = &obj->do_index_ops->dio_it;
902 di = iops->init(env, obj, lfsck->li_args_dir, BYPASS_CAPA);
904 GOTO(out, rc = PTR_ERR(di));
906 rc = iops->load(env, di, 0);
908 rc = iops->next(env, di);
918 lfsck->li_obj_dir = lfsck_object_get(obj);
919 lfsck->li_cookie_dir = iops->store(env, di);
920 spin_lock(&lfsck->li_lock);
921 lfsck->li_di_dir = di;
922 spin_unlock(&lfsck->li_lock);
928 lfsck_fail(env, lfsck, false);
929 return (rc > 0 ? 0 : rc);
932 int lfsck_exec_dir(const struct lu_env *env, struct lfsck_instance *lfsck,
933 struct dt_object *obj, struct lu_dirent *ent)
935 struct lfsck_component *com;
938 cfs_list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
939 rc = com->lc_ops->lfsck_exec_dir(env, com, obj, ent);
946 int lfsck_post(const struct lu_env *env, struct lfsck_instance *lfsck,
949 struct lfsck_component *com;
950 struct lfsck_component *next;
954 lfsck_pos_fill(env, lfsck, &lfsck->li_pos_current, false);
955 cfs_list_for_each_entry_safe(com, next, &lfsck->li_list_scan, lc_link) {
956 rc = com->lc_ops->lfsck_post(env, com, result, false);
961 lfsck->li_time_last_checkpoint = cfs_time_current();
962 lfsck->li_time_next_checkpoint = lfsck->li_time_last_checkpoint +
963 cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
965 /* Ignore some component post failure to make other can go ahead. */
969 int lfsck_double_scan(const struct lu_env *env, struct lfsck_instance *lfsck)
971 struct lfsck_component *com;
972 struct lfsck_component *next;
973 struct l_wait_info lwi = { 0 };
977 cfs_list_for_each_entry_safe(com, next, &lfsck->li_list_double_scan,
979 if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
982 rc = com->lc_ops->lfsck_double_scan(env, com);
987 l_wait_event(lfsck->li_thread.t_ctl_waitq,
988 atomic_read(&lfsck->li_double_scan_count) == 0,
991 return rc1 != 0 ? rc1 : rc;
994 int lfsck_stop_notify(const struct lu_env *env, struct lfsck_instance *lfsck,
995 struct lfsck_tgt_descs *ltds, struct lfsck_tgt_desc *ltd)
997 struct ptlrpc_request_set *set;
998 struct lfsck_component *com;
1003 set = ptlrpc_prep_set();
1007 list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
1008 if (com->lc_ops->lfsck_stop_notify != NULL) {
1009 rc = com->lc_ops->lfsck_stop_notify(env, com, ltds,
1018 list_for_each_entry(com, &lfsck->li_list_double_scan, lc_link) {
1019 if (com->lc_ops->lfsck_stop_notify != NULL) {
1020 rc = com->lc_ops->lfsck_stop_notify(env, com, ltds,
1030 rc = ptlrpc_set_wait(set);
1031 ptlrpc_set_destroy(set);
1033 return rc1 != 0 ? rc1 : rc;
1036 void lfsck_quit(const struct lu_env *env, struct lfsck_instance *lfsck)
1038 struct lfsck_component *com;
1039 struct lfsck_component *next;
1041 list_for_each_entry_safe(com, next, &lfsck->li_list_scan,
1043 if (com->lc_ops->lfsck_quit != NULL)
1044 com->lc_ops->lfsck_quit(env, com);
1047 list_for_each_entry_safe(com, next, &lfsck->li_list_double_scan,
1049 if (com->lc_ops->lfsck_quit != NULL)
1050 com->lc_ops->lfsck_quit(env, com);
1054 int lfsck_async_request(const struct lu_env *env, struct obd_export *exp,
1055 struct lfsck_request *lr,
1056 struct ptlrpc_request_set *set,
1057 ptlrpc_interpterer_t interpreter,
1058 void *args, int request)
1060 struct lfsck_async_interpret_args *laia;
1061 struct ptlrpc_request *req;
1062 struct lfsck_request *tmp;
1063 struct req_format *format;
1066 if (!(exp_connect_flags(exp) & OBD_CONNECT_LFSCK))
1071 format = &RQF_LFSCK_NOTIFY;
1074 format = &RQF_LFSCK_QUERY;
1077 CERROR("%s: unknown async request: opc = %d\n",
1078 exp->exp_obd->obd_name, request);
1082 req = ptlrpc_request_alloc(class_exp2cliimp(exp), format);
1086 rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, request);
1088 ptlrpc_request_free(req);
1093 tmp = req_capsule_client_get(&req->rq_pill, &RMF_LFSCK_REQUEST);
1095 ptlrpc_request_set_replen(req);
1097 laia = ptlrpc_req_async_args(req);
1098 *laia = *(struct lfsck_async_interpret_args *)args;
1099 lfsck_component_get(laia->laia_com);
1100 req->rq_interpret_reply = interpreter;
1101 ptlrpc_set_add_req(set, req);
1106 /* external interfaces */
1108 int lfsck_get_speed(struct dt_device *key, void *buf, int len)
1111 struct lfsck_instance *lfsck;
1115 rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
1119 lfsck = lfsck_instance_find(key, true, false);
1120 if (likely(lfsck != NULL)) {
1121 rc = snprintf(buf, len, "%u\n",
1122 lfsck->li_bookmark_ram.lb_speed_limit);
1123 lfsck_instance_put(&env, lfsck);
1132 EXPORT_SYMBOL(lfsck_get_speed);
1134 int lfsck_set_speed(struct dt_device *key, int val)
1137 struct lfsck_instance *lfsck;
1141 rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
1145 lfsck = lfsck_instance_find(key, true, false);
1146 if (likely(lfsck != NULL)) {
1147 mutex_lock(&lfsck->li_mutex);
1148 __lfsck_set_speed(lfsck, val);
1149 rc = lfsck_bookmark_store(&env, lfsck);
1150 mutex_unlock(&lfsck->li_mutex);
1151 lfsck_instance_put(&env, lfsck);
1160 EXPORT_SYMBOL(lfsck_set_speed);
1162 int lfsck_get_windows(struct dt_device *key, void *buf, int len)
1165 struct lfsck_instance *lfsck;
1169 rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
1173 lfsck = lfsck_instance_find(key, true, false);
1174 if (likely(lfsck != NULL)) {
1175 rc = snprintf(buf, len, "%u\n",
1176 lfsck->li_bookmark_ram.lb_async_windows);
1177 lfsck_instance_put(&env, lfsck);
1186 EXPORT_SYMBOL(lfsck_get_windows);
1188 int lfsck_set_windows(struct dt_device *key, int val)
1191 struct lfsck_instance *lfsck;
1195 rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
1199 lfsck = lfsck_instance_find(key, true, false);
1200 if (likely(lfsck != NULL)) {
1201 if (val > LFSCK_ASYNC_WIN_MAX) {
1202 CERROR("%s: Too large async windows size, which "
1203 "may cause memory issues. The valid range "
1204 "is [0 - %u]. If you do not want to restrict "
1205 "the windows size for async requests pipeline, "
1206 "just set it as 0.\n",
1207 lfsck_lfsck2name(lfsck), LFSCK_ASYNC_WIN_MAX);
1209 } else if (lfsck->li_bookmark_ram.lb_async_windows != val) {
1210 mutex_lock(&lfsck->li_mutex);
1211 lfsck->li_bookmark_ram.lb_async_windows = val;
1212 rc = lfsck_bookmark_store(&env, lfsck);
1213 mutex_unlock(&lfsck->li_mutex);
1215 lfsck_instance_put(&env, lfsck);
1224 EXPORT_SYMBOL(lfsck_set_windows);
1226 int lfsck_dump(struct dt_device *key, void *buf, int len, enum lfsck_type type)
1229 struct lfsck_instance *lfsck;
1230 struct lfsck_component *com;
1234 rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
1238 lfsck = lfsck_instance_find(key, true, false);
1239 if (likely(lfsck != NULL)) {
1240 com = lfsck_component_find(lfsck, type);
1241 if (likely(com != NULL)) {
1242 rc = com->lc_ops->lfsck_dump(&env, com, buf, len);
1243 lfsck_component_put(&env, com);
1248 lfsck_instance_put(&env, lfsck);
1257 EXPORT_SYMBOL(lfsck_dump);
1259 int lfsck_start(const struct lu_env *env, struct dt_device *key,
1260 struct lfsck_start_param *lsp)
1262 struct lfsck_start *start = lsp->lsp_start;
1263 struct lfsck_instance *lfsck;
1264 struct lfsck_bookmark *bk;
1265 struct ptlrpc_thread *thread;
1266 struct lfsck_component *com;
1267 struct l_wait_info lwi = { 0 };
1268 struct lfsck_thread_args *lta;
1276 lfsck = lfsck_instance_find(key, true, false);
1277 if (unlikely(lfsck == NULL))
1280 /* start == NULL means auto trigger paused LFSCK. */
1281 if ((start == NULL) &&
1282 (cfs_list_empty(&lfsck->li_list_scan) ||
1283 OBD_FAIL_CHECK(OBD_FAIL_LFSCK_NO_AUTO)))
1286 bk = &lfsck->li_bookmark_ram;
1287 thread = &lfsck->li_thread;
1288 mutex_lock(&lfsck->li_mutex);
1289 spin_lock(&lfsck->li_lock);
1290 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
1292 while (start->ls_active != 0) {
1293 if (!(type & start->ls_active)) {
1298 com = __lfsck_component_find(lfsck, type,
1299 &lfsck->li_list_scan);
1301 com = __lfsck_component_find(lfsck, type,
1302 &lfsck->li_list_double_scan);
1308 if (com->lc_ops->lfsck_join != NULL) {
1309 rc = com->lc_ops->lfsck_join( env, com, lsp);
1310 if (rc != 0 && rc != -EALREADY)
1313 start->ls_active &= ~type;
1316 spin_unlock(&lfsck->li_lock);
1319 spin_unlock(&lfsck->li_lock);
1321 lfsck->li_namespace = lsp->lsp_namespace;
1322 lfsck->li_status = 0;
1323 lfsck->li_oit_over = 0;
1324 lfsck->li_drop_dryrun = 0;
1325 lfsck->li_new_scanned = 0;
1327 /* For auto trigger. */
1331 start->ls_version = bk->lb_version;
1332 if (start->ls_valid & LSV_SPEED_LIMIT) {
1333 __lfsck_set_speed(lfsck, start->ls_speed_limit);
1337 if (start->ls_valid & LSV_ASYNC_WINDOWS &&
1338 bk->lb_async_windows != start->ls_async_windows) {
1339 bk->lb_async_windows = start->ls_async_windows;
1343 if (start->ls_valid & LSV_ERROR_HANDLE) {
1344 valid |= DOIV_ERROR_HANDLE;
1345 if (start->ls_flags & LPF_FAILOUT)
1346 flags |= DOIF_FAILOUT;
1348 if ((start->ls_flags & LPF_FAILOUT) &&
1349 !(bk->lb_param & LPF_FAILOUT)) {
1350 bk->lb_param |= LPF_FAILOUT;
1352 } else if (!(start->ls_flags & LPF_FAILOUT) &&
1353 (bk->lb_param & LPF_FAILOUT)) {
1354 bk->lb_param &= ~LPF_FAILOUT;
1359 if (start->ls_valid & LSV_DRYRUN) {
1360 valid |= DOIV_DRYRUN;
1361 if (start->ls_flags & LPF_DRYRUN)
1362 flags |= DOIF_DRYRUN;
1364 if ((start->ls_flags & LPF_DRYRUN) &&
1365 !(bk->lb_param & LPF_DRYRUN)) {
1366 bk->lb_param |= LPF_DRYRUN;
1368 } else if (!(start->ls_flags & LPF_DRYRUN) &&
1369 (bk->lb_param & LPF_DRYRUN)) {
1370 bk->lb_param &= ~LPF_DRYRUN;
1371 lfsck->li_drop_dryrun = 1;
1376 if (bk->lb_param & LPF_ALL_MDT &&
1377 !(start->ls_flags & LPF_ALL_MDT)) {
1378 bk->lb_param &= ~LPF_ALL_MDT;
1380 } else if (!(bk->lb_param & LPF_ALL_MDT) &&
1381 start->ls_flags & LPF_ALL_MDT) {
1382 bk->lb_param |= LPF_ALL_MDT;
1387 rc = lfsck_bookmark_store(env, lfsck);
1392 if (start->ls_flags & LPF_RESET)
1393 flags |= DOIF_RESET;
1395 if (start->ls_active != 0) {
1396 struct lfsck_component *next;
1398 if (start->ls_active == LFSCK_TYPES_ALL)
1399 start->ls_active = LFSCK_TYPES_SUPPORTED;
1401 if (start->ls_active & ~LFSCK_TYPES_SUPPORTED) {
1402 start->ls_active &= ~LFSCK_TYPES_SUPPORTED;
1403 GOTO(out, rc = -ENOTSUPP);
1406 cfs_list_for_each_entry_safe(com, next,
1407 &lfsck->li_list_scan, lc_link) {
1408 if (!(com->lc_type & start->ls_active)) {
1409 rc = com->lc_ops->lfsck_post(env, com, 0,
1416 while (start->ls_active != 0) {
1417 if (type & start->ls_active) {
1418 com = __lfsck_component_find(lfsck, type,
1419 &lfsck->li_list_idle);
1421 /* The component status will be updated
1422 * when its prep() is called later by
1423 * the LFSCK main engine. */
1424 cfs_list_del_init(&com->lc_link);
1425 cfs_list_add_tail(&com->lc_link,
1426 &lfsck->li_list_scan);
1428 start->ls_active &= ~type;
1434 cfs_list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
1435 start->ls_active |= com->lc_type;
1436 if (flags & DOIF_RESET) {
1437 rc = com->lc_ops->lfsck_reset(env, com, false);
1444 lfsck->li_args_dir = LUDA_64BITHASH | LUDA_VERIFY;
1445 if (bk->lb_param & LPF_DRYRUN) {
1446 lfsck->li_args_dir |= LUDA_VERIFY_DRYRUN;
1447 valid |= DOIV_DRYRUN;
1448 flags |= DOIF_DRYRUN;
1451 if (bk->lb_param & LPF_FAILOUT) {
1452 valid |= DOIV_ERROR_HANDLE;
1453 flags |= DOIF_FAILOUT;
1456 if (!cfs_list_empty(&lfsck->li_list_scan))
1457 flags |= DOIF_OUTUSED;
1459 lfsck->li_args_oit = (flags << DT_OTABLE_IT_FLAGS_SHIFT) | valid;
1460 thread_set_flags(thread, 0);
1461 lta = lfsck_thread_args_init(lfsck, NULL, lsp);
1463 GOTO(out, rc = PTR_ERR(lta));
1465 rc = PTR_ERR(kthread_run(lfsck_master_engine, lta, "lfsck"));
1466 if (IS_ERR_VALUE(rc)) {
1467 CERROR("%s: cannot start LFSCK thread: rc = %ld\n",
1468 lfsck_lfsck2name(lfsck), rc);
1469 lfsck_thread_args_fini(lta);
1472 l_wait_event(thread->t_ctl_waitq,
1473 thread_is_running(thread) ||
1474 thread_is_stopped(thread),
1481 mutex_unlock(&lfsck->li_mutex);
1483 lfsck_instance_put(env, lfsck);
1484 return (rc < 0 ? rc : 0);
1486 EXPORT_SYMBOL(lfsck_start);
1488 int lfsck_stop(const struct lu_env *env, struct dt_device *key,
1489 struct lfsck_stop *stop)
1491 struct lfsck_instance *lfsck;
1492 struct ptlrpc_thread *thread;
1493 struct l_wait_info lwi = { 0 };
1497 lfsck = lfsck_instance_find(key, true, false);
1498 if (unlikely(lfsck == NULL))
1501 thread = &lfsck->li_thread;
1502 mutex_lock(&lfsck->li_mutex);
1503 spin_lock(&lfsck->li_lock);
1504 if (thread_is_init(thread) || thread_is_stopped(thread)) {
1505 spin_unlock(&lfsck->li_lock);
1506 GOTO(out, rc = -EALREADY);
1510 lfsck->li_status = stop->ls_status;
1511 lfsck->li_flags = stop->ls_flags;
1513 lfsck->li_status = LS_STOPPED;
1514 lfsck->li_flags = 0;
1517 thread_set_flags(thread, SVC_STOPPING);
1518 spin_unlock(&lfsck->li_lock);
1520 wake_up_all(&thread->t_ctl_waitq);
1521 l_wait_event(thread->t_ctl_waitq,
1522 thread_is_stopped(thread),
1528 mutex_unlock(&lfsck->li_mutex);
1529 lfsck_instance_put(env, lfsck);
1533 EXPORT_SYMBOL(lfsck_stop);
1535 int lfsck_in_notify(const struct lu_env *env, struct dt_device *key,
1536 struct lfsck_request *lr)
1538 struct lfsck_instance *lfsck;
1539 struct lfsck_component *com;
1543 switch (lr->lr_event) {
1545 case LE_PHASE1_DONE:
1546 case LE_PHASE2_DONE:
1549 RETURN(-EOPNOTSUPP);
1552 lfsck = lfsck_instance_find(key, true, false);
1553 if (unlikely(lfsck == NULL))
1556 com = lfsck_component_find(lfsck, lr->lr_active);
1557 if (likely(com != NULL)) {
1558 rc = com->lc_ops->lfsck_in_notify(env, com, lr);
1559 lfsck_component_put(env, com);
1564 lfsck_instance_put(env, lfsck);
1568 EXPORT_SYMBOL(lfsck_in_notify);
1570 int lfsck_query(const struct lu_env *env, struct dt_device *key,
1571 struct lfsck_request *lr)
1573 struct lfsck_instance *lfsck;
1574 struct lfsck_component *com;
1578 lfsck = lfsck_instance_find(key, true, false);
1579 if (unlikely(lfsck == NULL))
1582 com = lfsck_component_find(lfsck, lr->lr_active);
1583 if (likely(com != NULL)) {
1584 rc = com->lc_ops->lfsck_query(env, com);
1585 lfsck_component_put(env, com);
1590 lfsck_instance_put(env, lfsck);
1594 EXPORT_SYMBOL(lfsck_query);
1596 int lfsck_register(const struct lu_env *env, struct dt_device *key,
1597 struct dt_device *next, struct obd_device *obd,
1598 lfsck_out_notify notify, void *notify_data, bool master)
1600 struct lfsck_instance *lfsck;
1601 struct dt_object *root = NULL;
1602 struct dt_object *obj;
1603 struct lu_fid *fid = &lfsck_env_info(env)->lti_fid;
1607 lfsck = lfsck_instance_find(key, false, false);
1608 if (unlikely(lfsck != NULL))
1611 OBD_ALLOC_PTR(lfsck);
1615 mutex_init(&lfsck->li_mutex);
1616 spin_lock_init(&lfsck->li_lock);
1617 CFS_INIT_LIST_HEAD(&lfsck->li_link);
1618 CFS_INIT_LIST_HEAD(&lfsck->li_list_scan);
1619 CFS_INIT_LIST_HEAD(&lfsck->li_list_dir);
1620 CFS_INIT_LIST_HEAD(&lfsck->li_list_double_scan);
1621 CFS_INIT_LIST_HEAD(&lfsck->li_list_idle);
1622 atomic_set(&lfsck->li_ref, 1);
1623 atomic_set(&lfsck->li_double_scan_count, 0);
1624 init_waitqueue_head(&lfsck->li_thread.t_ctl_waitq);
1625 lfsck->li_out_notify = notify;
1626 lfsck->li_out_notify_data = notify_data;
1627 lfsck->li_next = next;
1628 lfsck->li_bottom = key;
1629 lfsck->li_obd = obd;
1631 rc = lfsck_tgt_descs_init(&lfsck->li_ost_descs);
1635 rc = lfsck_tgt_descs_init(&lfsck->li_mdt_descs);
1639 fid->f_seq = FID_SEQ_LOCAL_NAME;
1642 rc = local_oid_storage_init(env, lfsck->li_bottom, fid, &lfsck->li_los);
1646 rc = dt_root_get(env, key, fid);
1650 root = dt_locate(env, lfsck->li_bottom, fid);
1652 GOTO(out, rc = PTR_ERR(root));
1654 if (unlikely(!dt_try_as_dir(env, root)))
1655 GOTO(out, rc = -ENOTDIR);
1657 lfsck->li_local_root_fid = *fid;
1659 lfsck->li_master = 1;
1660 if (lfsck_dev_idx(lfsck->li_bottom) == 0) {
1661 rc = dt_lookup(env, root,
1662 (struct dt_rec *)(&lfsck->li_global_root_fid),
1663 (const struct dt_key *)"ROOT", BYPASS_CAPA);
1669 fid->f_seq = FID_SEQ_LOCAL_FILE;
1670 fid->f_oid = OTABLE_IT_OID;
1672 obj = dt_locate(env, lfsck->li_bottom, fid);
1674 GOTO(out, rc = PTR_ERR(obj));
1676 lfsck->li_obj_oit = obj;
1677 rc = obj->do_ops->do_index_try(env, obj, &dt_otable_features);
1679 if (rc == -ENOTSUPP)
1685 rc = lfsck_bookmark_setup(env, lfsck);
1690 rc = lfsck_namespace_setup(env, lfsck);
1695 rc = lfsck_layout_setup(env, lfsck);
1699 /* XXX: more LFSCK components initialization to be added here. */
1702 rc = lfsck_instance_add(lfsck);
1704 rc = lfsck_add_target_from_orphan(env, lfsck);
1706 if (root != NULL && !IS_ERR(root))
1707 lu_object_put(env, &root->do_lu);
1709 lfsck_instance_cleanup(env, lfsck);
1712 EXPORT_SYMBOL(lfsck_register);
1714 void lfsck_degister(const struct lu_env *env, struct dt_device *key)
1716 struct lfsck_instance *lfsck;
1718 lfsck = lfsck_instance_find(key, false, true);
1720 lfsck_instance_put(env, lfsck);
1722 EXPORT_SYMBOL(lfsck_degister);
1724 int lfsck_add_target(const struct lu_env *env, struct dt_device *key,
1725 struct dt_device *tgt, struct obd_export *exp,
1726 __u32 index, bool for_ost)
1728 struct lfsck_instance *lfsck;
1729 struct lfsck_tgt_desc *ltd;
1740 INIT_LIST_HEAD(<d->ltd_orphan_list);
1741 INIT_LIST_HEAD(<d->ltd_layout_list);
1742 INIT_LIST_HEAD(<d->ltd_layout_phase_list);
1743 atomic_set(<d->ltd_ref, 1);
1744 ltd->ltd_index = index;
1746 spin_lock(&lfsck_instance_lock);
1747 lfsck = __lfsck_instance_find(key, true, false);
1748 if (lfsck == NULL) {
1750 list_add_tail(<d->ltd_orphan_list,
1751 &lfsck_ost_orphan_list);
1753 list_add_tail(<d->ltd_orphan_list,
1754 &lfsck_mdt_orphan_list);
1755 spin_unlock(&lfsck_instance_lock);
1759 spin_unlock(&lfsck_instance_lock);
1761 rc = __lfsck_add_target(env, lfsck, ltd, for_ost, false);
1765 lfsck_instance_put(env, lfsck);
1769 EXPORT_SYMBOL(lfsck_add_target);
1771 void lfsck_del_target(const struct lu_env *env, struct dt_device *key,
1772 struct dt_device *tgt, __u32 index, bool for_ost)
1774 struct lfsck_instance *lfsck;
1775 struct lfsck_tgt_descs *ltds;
1776 struct lfsck_tgt_desc *ltd;
1777 struct list_head *head;
1782 head = &lfsck_ost_orphan_list;
1784 head = &lfsck_mdt_orphan_list;
1786 spin_lock(&lfsck_instance_lock);
1787 list_for_each_entry(ltd, head, ltd_orphan_list) {
1788 if (ltd->ltd_tgt == tgt) {
1789 list_del_init(<d->ltd_orphan_list);
1790 spin_unlock(&lfsck_instance_lock);
1797 lfsck = __lfsck_instance_find(key, true, false);
1798 spin_unlock(&lfsck_instance_lock);
1799 if (unlikely(lfsck == NULL))
1803 ltds = &lfsck->li_ost_descs;
1805 ltds = &lfsck->li_mdt_descs;
1807 down_write(<ds->ltd_rw_sem);
1809 LASSERT(ltds->ltd_tgts_bitmap != NULL);
1811 if (unlikely(index >= ltds->ltd_tgts_bitmap->size))
1814 ltd = LTD_TGT(ltds, index);
1815 if (unlikely(ltd == NULL))
1819 spin_lock(<ds->ltd_lock);
1821 if (!list_empty(<d->ltd_layout_list)) {
1822 list_del_init(<d->ltd_layout_phase_list);
1823 list_del_init(<d->ltd_layout_list);
1826 LASSERT(list_empty(<d->ltd_layout_phase_list));
1828 spin_unlock(<ds->ltd_lock);
1830 if (stop && lfsck->li_master)
1831 lfsck_stop_notify(env, lfsck, ltds, ltd);
1833 LASSERT(ltds->ltd_tgtnr > 0);
1836 cfs_bitmap_clear(ltds->ltd_tgts_bitmap, index);
1837 LTD_TGT(ltds, index) = NULL;
1843 head = &lfsck->li_ost_descs.ltd_orphan;
1845 head = &lfsck->li_ost_descs.ltd_orphan;
1847 list_for_each_entry(ltd, head, ltd_orphan_list) {
1848 if (ltd->ltd_tgt == tgt) {
1849 list_del_init(<d->ltd_orphan_list);
1856 up_write(<ds->ltd_rw_sem);
1857 lfsck_instance_put(env, lfsck);
1859 EXPORT_SYMBOL(lfsck_del_target);
1861 static int __init lfsck_init(void)
1865 INIT_LIST_HEAD(&lfsck_ost_orphan_list);
1866 INIT_LIST_HEAD(&lfsck_mdt_orphan_list);
1867 lfsck_key_init_generic(&lfsck_thread_key, NULL);
1868 rc = lu_context_key_register(&lfsck_thread_key);
1870 tgt_register_lfsck_start(lfsck_start);
1871 tgt_register_lfsck_in_notify(lfsck_in_notify);
1872 tgt_register_lfsck_query(lfsck_query);
1878 static void __exit lfsck_exit(void)
1880 struct lfsck_tgt_desc *ltd;
1881 struct lfsck_tgt_desc *next;
1883 LASSERT(cfs_list_empty(&lfsck_instance_list));
1885 list_for_each_entry_safe(ltd, next, &lfsck_ost_orphan_list,
1887 list_del_init(<d->ltd_orphan_list);
1891 list_for_each_entry_safe(ltd, next, &lfsck_mdt_orphan_list,
1893 list_del_init(<d->ltd_orphan_list);
1897 lu_context_key_degister(&lfsck_thread_key);
1900 MODULE_AUTHOR("Intel Corporation <http://www.intel.com/>");
1901 MODULE_DESCRIPTION("LFSCK");
1902 MODULE_LICENSE("GPL");
1904 cfs_module(lfsck, LUSTRE_VERSION_STRING, lfsck_init, lfsck_exit);