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, 2016, Intel Corporation.
26 * lustre/osd-ldiskfs/osd_scrub.c
28 * Top-level entry points into osd module
30 * The OI scrub is used for rebuilding Object Index files when restores MDT from
33 * The otable based iterator scans ldiskfs inode table to feed up layer LFSCK.
35 * Author: Fan Yong <yong.fan@whamcloud.com>
38 #define DEBUG_SUBSYSTEM S_LFSCK
40 #include <linux/kthread.h>
41 #include <lustre/lustre_idl.h>
42 #include <lustre_disk.h>
43 #include <dt_object.h>
44 #include <linux/xattr.h>
46 #include "osd_internal.h"
48 #include "osd_scrub.h"
50 #define HALF_SEC msecs_to_jiffies(MSEC_PER_SEC >> 1)
52 #define OSD_OTABLE_MAX_HASH 0x00000000ffffffffULL
54 #define SCRUB_NEXT_BREAK 1 /* exit current loop and process next group */
55 #define SCRUB_NEXT_CONTINUE 2 /* skip current object and process next bit */
56 #define SCRUB_NEXT_EXIT 3 /* exit all the loops */
57 #define SCRUB_NEXT_WAIT 4 /* wait for free cache slot */
58 #define SCRUB_NEXT_CRASH 5 /* simulate system crash during OI scrub */
59 #define SCRUB_NEXT_FATAL 6 /* simulate failure during OI scrub */
60 #define SCRUB_NEXT_NOSCRUB 7 /* new created object, no scrub on it */
61 #define SCRUB_NEXT_NOLMA 8 /* the inode has no FID-in-LMA */
62 #define SCRUB_NEXT_OSTOBJ 9 /* for OST-object */
63 #define SCRUB_NEXT_OSTOBJ_OLD 10 /* old OST-object, no LMA or no FID-on-OST
68 static inline struct osd_device *osd_scrub2dev(struct osd_scrub *scrub)
70 return container_of0(scrub, struct osd_device, od_scrub);
73 static inline struct super_block *osd_scrub2sb(struct osd_scrub *scrub)
75 return osd_sb(osd_scrub2dev(scrub));
78 static inline int osd_scrub_has_window(struct osd_scrub *scrub,
79 struct osd_otable_cache *ooc)
81 return scrub->os_pos_current < ooc->ooc_pos_preload + SCRUB_WINDOW_SIZE;
84 static inline const char *osd_scrub2name(struct osd_scrub *scrub)
86 return osd_dev2name(osd_scrub2dev(scrub));
90 * update/insert/delete the specified OI mapping (@fid @id) according to the ops
92 * \retval 1, changed nothing
93 * \retval 0, changed successfully
94 * \retval -ve, on error
96 static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
97 struct osd_device *dev,
98 const struct lu_fid *fid,
99 const struct osd_inode_id *id,
101 enum oi_check_flags flags, bool *exist)
107 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN && !force)
110 /* DTO_INDEX_INSERT is enough for other two ops:
111 * delete/update, but save stack. */
112 th = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
113 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
116 CDEBUG(D_LFSCK, "%s: fail to start trans for scrub op %d "
117 DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
118 PFID(fid), id ? id->oii_ino : -1, id ? id->oii_gen : -1,
124 case DTO_INDEX_UPDATE:
125 rc = osd_oi_update(info, dev, fid, id, th, flags);
126 if (unlikely(rc == -ENOENT)) {
127 /* Some unlink thread may removed the OI mapping. */
131 case DTO_INDEX_INSERT:
132 rc = osd_oi_insert(info, dev, fid, id, th, flags, exist);
133 if (unlikely(rc == -EEXIST)) {
135 /* XXX: There are trouble things when adding OI
136 * mapping for IGIF object, which may cause
137 * multiple objects to be mapped to the same
138 * IGIF formatted FID. Consider the following
141 * 1) The MDT is upgrading from 1.8 device.
142 * The OI scrub generates IGIF FID1 for the
143 * OBJ1 and adds the OI mapping.
145 * 2) For some reason, the OI scrub does not
146 * process all the IGIF objects completely.
148 * 3) The MDT is backuped and restored against
151 * 4) When the MDT mounts up, the OI scrub will
152 * try to rebuild the OI files. For some IGIF
153 * object, OBJ2, which was not processed by the
154 * OI scrub before the backup/restore, and the
155 * new generated IGIF formatted FID may be just
156 * the FID1, the same as OBJ1.
158 * Under such case, the OI scrub cannot know how
159 * to generate new FID for the OBJ2.
161 * Currently, we do nothing for that. One possible
162 * solution is to generate new normal FID for the
165 * Anyway, it is rare, only exists in theory. */
168 case DTO_INDEX_DELETE:
169 rc = osd_oi_delete(info, dev, fid, th, flags);
171 /* It is normal that the unlink thread has removed the
172 * OI mapping already. */
177 LASSERTF(0, "Unexpected ops %d\n", ops);
181 ldiskfs_journal_stop(th);
183 CDEBUG(D_LFSCK, "%s: fail to refresh OI map for scrub op %d "
184 DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
185 PFID(fid), id ? id->oii_ino : -1, id ? id->oii_gen : -1,
191 /* OI_scrub file ops */
193 static void osd_scrub_file_to_cpu(struct scrub_file *des,
194 struct scrub_file *src)
196 memcpy(des->sf_uuid, src->sf_uuid, 16);
197 des->sf_flags = le64_to_cpu(src->sf_flags);
198 des->sf_magic = le32_to_cpu(src->sf_magic);
199 des->sf_status = le16_to_cpu(src->sf_status);
200 des->sf_param = le16_to_cpu(src->sf_param);
201 des->sf_time_last_complete =
202 le64_to_cpu(src->sf_time_last_complete);
203 des->sf_time_latest_start =
204 le64_to_cpu(src->sf_time_latest_start);
205 des->sf_time_last_checkpoint =
206 le64_to_cpu(src->sf_time_last_checkpoint);
207 des->sf_pos_latest_start =
208 le64_to_cpu(src->sf_pos_latest_start);
209 des->sf_pos_last_checkpoint =
210 le64_to_cpu(src->sf_pos_last_checkpoint);
211 des->sf_pos_first_inconsistent =
212 le64_to_cpu(src->sf_pos_first_inconsistent);
213 des->sf_items_checked =
214 le64_to_cpu(src->sf_items_checked);
215 des->sf_items_updated =
216 le64_to_cpu(src->sf_items_updated);
217 des->sf_items_failed =
218 le64_to_cpu(src->sf_items_failed);
219 des->sf_items_updated_prior =
220 le64_to_cpu(src->sf_items_updated_prior);
221 des->sf_run_time = le32_to_cpu(src->sf_run_time);
222 des->sf_success_count = le32_to_cpu(src->sf_success_count);
223 des->sf_oi_count = le16_to_cpu(src->sf_oi_count);
224 des->sf_internal_flags = le16_to_cpu(src->sf_internal_flags);
225 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
228 static void osd_scrub_file_to_le(struct scrub_file *des,
229 struct scrub_file *src)
231 memcpy(des->sf_uuid, src->sf_uuid, 16);
232 des->sf_flags = cpu_to_le64(src->sf_flags);
233 des->sf_magic = cpu_to_le32(src->sf_magic);
234 des->sf_status = cpu_to_le16(src->sf_status);
235 des->sf_param = cpu_to_le16(src->sf_param);
236 des->sf_time_last_complete =
237 cpu_to_le64(src->sf_time_last_complete);
238 des->sf_time_latest_start =
239 cpu_to_le64(src->sf_time_latest_start);
240 des->sf_time_last_checkpoint =
241 cpu_to_le64(src->sf_time_last_checkpoint);
242 des->sf_pos_latest_start =
243 cpu_to_le64(src->sf_pos_latest_start);
244 des->sf_pos_last_checkpoint =
245 cpu_to_le64(src->sf_pos_last_checkpoint);
246 des->sf_pos_first_inconsistent =
247 cpu_to_le64(src->sf_pos_first_inconsistent);
248 des->sf_items_checked =
249 cpu_to_le64(src->sf_items_checked);
250 des->sf_items_updated =
251 cpu_to_le64(src->sf_items_updated);
252 des->sf_items_failed =
253 cpu_to_le64(src->sf_items_failed);
254 des->sf_items_updated_prior =
255 cpu_to_le64(src->sf_items_updated_prior);
256 des->sf_run_time = cpu_to_le32(src->sf_run_time);
257 des->sf_success_count = cpu_to_le32(src->sf_success_count);
258 des->sf_oi_count = cpu_to_le16(src->sf_oi_count);
259 des->sf_internal_flags = cpu_to_le16(src->sf_internal_flags);
260 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
263 static void osd_scrub_file_init(struct osd_scrub *scrub, __u8 *uuid)
265 struct scrub_file *sf = &scrub->os_file;
267 memset(sf, 0, sizeof(*sf));
268 memcpy(sf->sf_uuid, uuid, 16);
269 sf->sf_magic = SCRUB_MAGIC_V1;
270 sf->sf_status = SS_INIT;
273 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags)
275 struct scrub_file *sf = &scrub->os_file;
277 CDEBUG(D_LFSCK, "%s: reset OI scrub file, old flags = "
278 "%#llx, add flags = %#llx\n",
279 osd_scrub2name(scrub), sf->sf_flags, flags);
281 memcpy(sf->sf_uuid, uuid, 16);
282 sf->sf_status = SS_INIT;
283 sf->sf_flags |= flags;
284 sf->sf_flags &= ~SF_AUTO;
286 sf->sf_time_latest_start = 0;
287 sf->sf_time_last_checkpoint = 0;
288 sf->sf_pos_latest_start = 0;
289 sf->sf_pos_last_checkpoint = 0;
290 sf->sf_pos_first_inconsistent = 0;
291 sf->sf_items_checked = 0;
292 sf->sf_items_updated = 0;
293 sf->sf_items_failed = 0;
294 if (!scrub->os_in_join)
295 sf->sf_items_updated_prior = 0;
297 sf->sf_items_noscrub = 0;
298 sf->sf_items_igif = 0;
301 static int osd_scrub_file_load(struct osd_scrub *scrub)
304 int len = sizeof(scrub->os_file_disk);
307 rc = osd_ldiskfs_read(scrub->os_inode, &scrub->os_file_disk, len, &pos);
309 struct scrub_file *sf = &scrub->os_file;
311 osd_scrub_file_to_cpu(sf, &scrub->os_file_disk);
312 if (sf->sf_magic != SCRUB_MAGIC_V1) {
313 CDEBUG(D_LFSCK, "%s: invalid scrub magic "
314 "0x%x != 0x%x\n", osd_scrub2name(scrub),
315 sf->sf_magic, SCRUB_MAGIC_V1);
316 /* Process it as new scrub file. */
321 } else if (rc != 0) {
322 CDEBUG(D_LFSCK, "%s: fail to load scrub file, "
323 "expected = %d: rc = %d\n",
324 osd_scrub2name(scrub), len, rc);
328 /* return -ENOENT for empty scrub file case. */
335 int osd_scrub_file_store(struct osd_scrub *scrub)
337 struct osd_device *dev;
340 int len = sizeof(scrub->os_file_disk);
344 dev = container_of0(scrub, struct osd_device, od_scrub);
345 credits = osd_dto_credits_noquota[DTO_WRITE_BASE] +
346 osd_dto_credits_noquota[DTO_WRITE_BLOCK];
347 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, credits);
350 CDEBUG(D_LFSCK, "%s: fail to start trans for scrub store: "
351 "rc = %d\n", osd_scrub2name(scrub), rc);
355 osd_scrub_file_to_le(&scrub->os_file_disk, &scrub->os_file);
356 rc = osd_ldiskfs_write_record(scrub->os_inode, &scrub->os_file_disk,
358 ldiskfs_journal_stop(jh);
360 CDEBUG(D_LFSCK, "%s: fail to store scrub file, "
361 "expected = %d: rc = %d\n",
362 osd_scrub2name(scrub), len, rc);
364 scrub->os_time_last_checkpoint = cfs_time_current();
365 scrub->os_time_next_checkpoint = scrub->os_time_last_checkpoint +
366 cfs_time_seconds(SCRUB_CHECKPOINT_INTERVAL);
371 osd_scrub_convert_ff(struct osd_thread_info *info, struct osd_device *dev,
372 struct inode *inode, const struct lu_fid *fid)
374 struct filter_fid_old *ff = &info->oti_ff;
375 struct dentry *dentry = &info->oti_obj_dentry;
376 struct lu_fid *tfid = &info->oti_fid;
383 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN)
386 if (fid_is_idif(fid) && dev->od_index_in_idif == 0) {
387 struct ost_id *oi = &info->oti_ostid;
389 fid_to_ostid(fid, oi);
390 ostid_to_fid(tfid, oi, 0);
395 /* We want the LMA to fit into the 256-byte OST inode, so operate
397 * 1) read old XATTR_NAME_FID and save the parent FID;
398 * 2) delete the old XATTR_NAME_FID;
399 * 3) make new LMA and add it;
400 * 4) generate new XATTR_NAME_FID with the saved parent FID and add it.
402 * Making the LMA to fit into the 256-byte OST inode can save time for
403 * normal osd_check_lma() and for other OI scrub scanning in future.
404 * So it is worth to make some slow conversion here. */
405 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
406 osd_dto_credits_noquota[DTO_XATTR_SET] * 3);
409 CDEBUG(D_LFSCK, "%s: fail to start trans for convert ff "
410 DFID": rc = %d\n", osd_name(dev), PFID(tfid), rc);
414 /* 1) read old XATTR_NAME_FID and save the parent FID */
415 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
416 if (rc == sizeof(*ff)) {
417 /* 2) delete the old XATTR_NAME_FID */
418 ll_vfs_dq_init(inode);
419 rc = osd_removexattr(dentry, inode, XATTR_NAME_FID);
424 } else if (rc != -ENODATA && rc != sizeof(struct filter_fid)) {
425 GOTO(stop, rc = -EINVAL);
428 /* 3) make new LMA and add it */
429 rc = osd_ea_fid_set(info, inode, tfid, LMAC_FID_ON_OST, 0);
432 /* If failed, we should try to add the old back. */
435 /* The new PFID EA will only contains ::ff_parent */
436 size = sizeof(ff->ff_parent);
439 /* 4) generate new XATTR_NAME_FID with the saved parent FID and add it*/
443 rc1 = __osd_xattr_set(info, inode, XATTR_NAME_FID, ff, size,
445 if (rc1 != 0 && rc == 0)
452 ldiskfs_journal_stop(jh);
454 CDEBUG(D_LFSCK, "%s: fail to convert ff "DFID": rc = %d\n",
455 osd_name(dev), PFID(tfid), rc);
460 osd_scrub_check_update(struct osd_thread_info *info, struct osd_device *dev,
461 struct osd_idmap_cache *oic, int val)
463 struct osd_scrub *scrub = &dev->od_scrub;
464 struct scrub_file *sf = &scrub->os_file;
465 struct lu_fid *fid = &oic->oic_fid;
466 struct osd_inode_id *lid = &oic->oic_lid;
467 struct osd_inode_id *lid2 = &info->oti_id;
468 struct osd_inconsistent_item *oii = NULL;
469 struct inode *inode = NULL;
470 int ops = DTO_INDEX_UPDATE;
472 bool converted = false;
476 down_write(&scrub->os_rwsem);
477 scrub->os_new_checked++;
481 if (scrub->os_in_prior)
482 oii = list_entry(oic, struct osd_inconsistent_item,
485 if (lid->oii_ino < sf->sf_pos_latest_start && oii == NULL)
488 if (fid_is_igif(fid))
491 if (val == SCRUB_NEXT_OSTOBJ_OLD) {
492 inode = osd_iget(info, dev, lid);
495 /* Someone removed the inode. */
496 if (rc == -ENOENT || rc == -ESTALE)
501 /* The inode has been reused as EA inode, ignore it. */
502 if (unlikely(osd_is_ea_inode(inode)))
505 sf->sf_flags |= SF_UPGRADE;
506 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
507 dev->od_check_ff = 1;
508 rc = osd_scrub_convert_ff(info, dev, inode, fid);
515 if ((val == SCRUB_NEXT_NOLMA) &&
516 (!scrub->os_convert_igif || OBD_FAIL_CHECK(OBD_FAIL_FID_NOLMA)))
519 if ((oii != NULL && oii->oii_insert) || (val == SCRUB_NEXT_NOLMA)) {
520 ops = DTO_INDEX_INSERT;
525 rc = osd_oi_lookup(info, dev, fid, lid2,
526 (val == SCRUB_NEXT_OSTOBJ ||
527 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
530 ops = DTO_INDEX_INSERT;
531 else if (rc != -ESTALE)
536 inode = osd_iget(info, dev, lid);
539 /* Someone removed the inode. */
540 if (rc == -ENOENT || rc == -ESTALE)
545 /* The inode has been reused as EA inode, ignore it. */
546 if (unlikely(osd_is_ea_inode(inode)))
550 if (!scrub->os_partial_scan)
551 scrub->os_full_speed = 1;
554 case SCRUB_NEXT_NOLMA:
555 sf->sf_flags |= SF_UPGRADE;
556 if (!(sf->sf_param & SP_DRYRUN)) {
557 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
562 if (!(sf->sf_flags & SF_INCONSISTENT))
563 dev->od_igif_inoi = 0;
565 case SCRUB_NEXT_OSTOBJ:
566 sf->sf_flags |= SF_INCONSISTENT;
567 case SCRUB_NEXT_OSTOBJ_OLD:
572 } else if (osd_id_eq(lid, lid2)) {
574 sf->sf_items_updated++;
578 if (!scrub->os_partial_scan)
579 scrub->os_full_speed = 1;
581 sf->sf_flags |= SF_INCONSISTENT;
583 /* XXX: If the device is restored from file-level backup, then
584 * some IGIFs may have been already in OI files, and some
585 * may be not yet. Means upgrading from 1.8 may be partly
586 * processed, but some clients may hold some immobilized
587 * IGIFs, and use them to access related objects. Under
588 * such case, OSD does not know whether an given IGIF has
589 * been processed or to be processed, and it also cannot
590 * generate local ino#/gen# directly from the immobilized
591 * IGIF because of the backup/restore. Then force OSD to
592 * lookup the given IGIF in OI files, and if no entry,
593 * then ask the client to retry after upgrading completed.
594 * No better choice. */
595 dev->od_igif_inoi = 1;
598 rc = osd_scrub_refresh_mapping(info, dev, fid, lid, ops, false,
599 (val == SCRUB_NEXT_OSTOBJ ||
600 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0,
603 if (scrub->os_in_prior)
604 sf->sf_items_updated_prior++;
606 sf->sf_items_updated++;
608 if (ops == DTO_INDEX_INSERT && val == 0 && !exist) {
609 int idx = osd_oi_fid2idx(dev, fid);
611 sf->sf_flags |= SF_RECREATED;
612 if (unlikely(!ldiskfs_test_bit(idx, sf->sf_oi_bitmap)))
613 ldiskfs_set_bit(idx, sf->sf_oi_bitmap);
621 sf->sf_items_failed++;
622 if (sf->sf_pos_first_inconsistent == 0 ||
623 sf->sf_pos_first_inconsistent > lid->oii_ino)
624 sf->sf_pos_first_inconsistent = lid->oii_ino;
629 /* There may be conflict unlink during the OI scrub,
630 * if happend, then remove the new added OI mapping. */
631 if (ops == DTO_INDEX_INSERT && inode != NULL && !IS_ERR(inode) &&
632 unlikely(ldiskfs_test_inode_state(inode,
633 LDISKFS_STATE_LUSTRE_DESTROY)))
634 osd_scrub_refresh_mapping(info, dev, fid, lid,
635 DTO_INDEX_DELETE, false,
636 (val == SCRUB_NEXT_OSTOBJ ||
637 val == SCRUB_NEXT_OSTOBJ_OLD) ?
638 OI_KNOWN_ON_OST : 0, NULL);
639 up_write(&scrub->os_rwsem);
641 if (inode != NULL && !IS_ERR(inode))
645 spin_lock(&scrub->os_lock);
646 if (likely(!list_empty(&oii->oii_list)))
647 list_del(&oii->oii_list);
648 spin_unlock(&scrub->os_lock);
653 RETURN(sf->sf_param & SP_FAILOUT ? rc : 0);
658 static int osd_scrub_prep(struct osd_device *dev)
660 struct osd_scrub *scrub = &dev->od_scrub;
661 struct ptlrpc_thread *thread = &scrub->os_thread;
662 struct scrub_file *sf = &scrub->os_file;
663 __u32 flags = scrub->os_start_flags;
665 bool drop_dryrun = false;
668 CDEBUG(D_LFSCK, "%s: OI scrub prep, flags = 0x%x\n",
669 osd_scrub2name(scrub), flags);
671 down_write(&scrub->os_rwsem);
672 if (flags & SS_SET_FAILOUT)
673 sf->sf_param |= SP_FAILOUT;
674 else if (flags & SS_CLEAR_FAILOUT)
675 sf->sf_param &= ~SP_FAILOUT;
677 if (flags & SS_SET_DRYRUN) {
678 sf->sf_param |= SP_DRYRUN;
679 } else if (flags & SS_CLEAR_DRYRUN && sf->sf_param & SP_DRYRUN) {
680 sf->sf_param &= ~SP_DRYRUN;
684 if (flags & SS_RESET)
685 osd_scrub_file_reset(scrub,
686 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, 0);
688 if (flags & SS_AUTO_FULL) {
689 scrub->os_full_speed = 1;
690 scrub->os_partial_scan = 0;
691 sf->sf_flags |= SF_AUTO;
692 } else if (flags & SS_AUTO_PARTIAL) {
693 scrub->os_full_speed = 0;
694 scrub->os_partial_scan = 1;
695 sf->sf_flags |= SF_AUTO;
696 } else if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
698 scrub->os_full_speed = 1;
699 scrub->os_partial_scan = 0;
701 scrub->os_full_speed = 0;
702 scrub->os_partial_scan = 0;
705 spin_lock(&scrub->os_lock);
706 scrub->os_in_prior = 0;
707 scrub->os_waiting = 0;
708 scrub->os_paused = 0;
709 scrub->os_in_join = 0;
710 scrub->os_full_scrub = 0;
711 spin_unlock(&scrub->os_lock);
712 scrub->os_new_checked = 0;
713 if (drop_dryrun && sf->sf_pos_first_inconsistent != 0)
714 sf->sf_pos_latest_start = sf->sf_pos_first_inconsistent;
715 else if (sf->sf_pos_last_checkpoint != 0)
716 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
718 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
720 scrub->os_pos_current = sf->sf_pos_latest_start;
721 sf->sf_status = SS_SCANNING;
722 sf->sf_time_latest_start = cfs_time_current_sec();
723 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
724 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
725 rc = osd_scrub_file_store(scrub);
727 spin_lock(&scrub->os_lock);
728 thread_set_flags(thread, SVC_RUNNING);
729 spin_unlock(&scrub->os_lock);
730 wake_up_all(&thread->t_ctl_waitq);
732 up_write(&scrub->os_rwsem);
737 static int osd_scrub_checkpoint(struct osd_scrub *scrub)
739 struct scrub_file *sf = &scrub->os_file;
742 if (likely(cfs_time_before(cfs_time_current(),
743 scrub->os_time_next_checkpoint) ||
744 scrub->os_new_checked == 0))
747 down_write(&scrub->os_rwsem);
748 sf->sf_items_checked += scrub->os_new_checked;
749 scrub->os_new_checked = 0;
750 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
751 sf->sf_time_last_checkpoint = cfs_time_current_sec();
752 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
753 scrub->os_time_last_checkpoint);
754 rc = osd_scrub_file_store(scrub);
755 up_write(&scrub->os_rwsem);
760 static int osd_scrub_post(struct osd_scrub *scrub, int result)
762 struct scrub_file *sf = &scrub->os_file;
766 CDEBUG(D_LFSCK, "%s: OI scrub post, result = %d\n",
767 osd_scrub2name(scrub), result);
769 down_write(&scrub->os_rwsem);
770 spin_lock(&scrub->os_lock);
771 thread_set_flags(&scrub->os_thread, SVC_STOPPING);
772 spin_unlock(&scrub->os_lock);
773 if (scrub->os_new_checked > 0) {
774 sf->sf_items_checked += scrub->os_new_checked;
775 scrub->os_new_checked = 0;
776 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
778 sf->sf_time_last_checkpoint = cfs_time_current_sec();
780 struct osd_device *dev =
781 container_of0(scrub, struct osd_device, od_scrub);
783 dev->od_igif_inoi = 1;
784 dev->od_check_ff = 0;
785 sf->sf_status = SS_COMPLETED;
786 if (!(sf->sf_param & SP_DRYRUN)) {
787 memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
788 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
789 SF_UPGRADE | SF_AUTO);
791 sf->sf_time_last_complete = sf->sf_time_last_checkpoint;
792 sf->sf_success_count++;
793 } else if (result == 0) {
794 if (scrub->os_paused)
795 sf->sf_status = SS_PAUSED;
797 sf->sf_status = SS_STOPPED;
799 sf->sf_status = SS_FAILED;
801 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
802 scrub->os_time_last_checkpoint);
803 rc = osd_scrub_file_store(scrub);
804 up_write(&scrub->os_rwsem);
806 RETURN(rc < 0 ? rc : result);
809 /* iteration engine */
811 typedef int (*osd_iit_next_policy)(struct osd_thread_info *info,
812 struct osd_device *dev,
813 struct osd_iit_param *param,
814 struct osd_idmap_cache **oic,
817 typedef int (*osd_iit_exec_policy)(struct osd_thread_info *info,
818 struct osd_device *dev,
819 struct osd_iit_param *param,
820 struct osd_idmap_cache *oic,
821 bool *noslot, int rc);
823 static int osd_iit_next(struct osd_iit_param *param, __u32 *pos)
828 param->offset = ldiskfs_find_next_bit(param->bitmap->b_data,
829 LDISKFS_INODES_PER_GROUP(param->sb), param->offset);
830 if (param->offset >= LDISKFS_INODES_PER_GROUP(param->sb)) {
831 *pos = 1 + (param->bg+1) * LDISKFS_INODES_PER_GROUP(param->sb);
832 return SCRUB_NEXT_BREAK;
835 offset = param->offset++;
836 if (unlikely(*pos == param->gbase + offset && *pos != param->start)) {
837 /* We should NOT find the same object more than once. */
838 CERROR("%s: scan the same object multiple times at the pos: "
839 "group = %u, base = %u, offset = %u, start = %u\n",
840 param->sb->s_id, (__u32)param->bg, param->gbase,
841 offset, param->start);
845 *pos = param->gbase + offset;
850 * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST
851 * \retval 0: FID-on-MDT
853 static int osd_scrub_check_local_fldb(struct osd_thread_info *info,
854 struct osd_device *dev,
857 /* XXX: The initial OI scrub will scan the top level /O to generate
858 * a small local FLDB according to the <seq>. If the given FID
859 * is in the local FLDB, then it is FID-on-OST; otherwise it's
860 * quite possible for FID-on-MDT. */
862 return SCRUB_NEXT_OSTOBJ_OLD;
867 static int osd_scrub_get_fid(struct osd_thread_info *info,
868 struct osd_device *dev, struct inode *inode,
869 struct lu_fid *fid, bool scrub)
871 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
873 bool has_lma = false;
875 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
876 &info->oti_ost_attrs);
879 if (lma->lma_compat & LMAC_NOT_IN_OI ||
880 lma->lma_incompat & LMAI_AGENT)
881 return SCRUB_NEXT_CONTINUE;
883 *fid = lma->lma_self_fid;
887 if (lma->lma_compat & LMAC_FID_ON_OST)
888 return SCRUB_NEXT_OSTOBJ;
890 if (fid_is_idif(fid))
891 return SCRUB_NEXT_OSTOBJ_OLD;
893 /* For local object. */
894 if (fid_is_internal(fid))
897 /* For external visible MDT-object with non-normal FID. */
898 if (fid_is_namespace_visible(fid) && !fid_is_norm(fid))
901 /* For the object with normal FID, it may be MDT-object,
902 * or may be 2.4 OST-object, need further distinguish.
903 * Fall through to next section. */
906 if (rc == -ENODATA || rc == 0) {
907 rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid);
910 /* It is old 2.x (x <= 3) or 1.8 OST-object. */
911 rc = SCRUB_NEXT_OSTOBJ_OLD;
917 /* It is FID-on-OST, but we do not know how
918 * to generate its FID, ignore it directly. */
919 rc = SCRUB_NEXT_CONTINUE;
921 /* It is 2.4 OST-object. */
922 rc = SCRUB_NEXT_OSTOBJ_OLD;
930 if (dev->od_scrub.os_convert_igif) {
931 lu_igif_build(fid, inode->i_ino,
932 inode->i_generation);
934 rc = SCRUB_NEXT_NOLMA;
938 /* It may be FID-on-OST, or may be FID for
939 * non-MDT0, anyway, we do not know how to
940 * generate its FID, ignore it directly. */
941 rc = SCRUB_NEXT_CONTINUE;
946 /* For OI scrub case only: the object has LMA but has no ff
947 * (or ff crashed). It may be MDT-object, may be OST-object
948 * with crashed ff. The last check is local FLDB. */
949 rc = osd_scrub_check_local_fldb(info, dev, fid);
955 static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
956 struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
957 struct super_block *sb, bool scrub)
963 /* Not handle the backend root object and agent parent object.
964 * They are neither visible to namespace nor have OI mappings. */
965 if (unlikely(pos == osd_sb(dev)->s_root->d_inode->i_ino ||
966 is_remote_parent_ino(dev, pos)))
967 RETURN(SCRUB_NEXT_CONTINUE);
969 /* Skip project quota inode since it is greater than s_first_ino. */
970 #ifdef HAVE_PROJECT_QUOTA
971 if (ldiskfs_has_feature_project(sb) &&
972 pos == le32_to_cpu(LDISKFS_SB(sb)->s_es->s_prj_quota_inum))
973 RETURN(SCRUB_NEXT_CONTINUE);
976 osd_id_gen(lid, pos, OSD_OII_NOGEN);
977 inode = osd_iget(info, dev, lid);
980 /* The inode may be removed after bitmap searching, or the
981 * file is new created without inode initialized yet. */
982 if (rc == -ENOENT || rc == -ESTALE)
983 RETURN(SCRUB_NEXT_CONTINUE);
985 CDEBUG(D_LFSCK, "%s: fail to read inode, ino# = %u: "
986 "rc = %d\n", osd_dev2name(dev), pos, rc);
990 /* It is an EA inode, no OI mapping for it, skip it. */
991 if (osd_is_ea_inode(inode))
992 GOTO(put, rc = SCRUB_NEXT_CONTINUE);
995 ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
996 /* Only skip it for the first OI scrub accessing. */
997 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
998 GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
1001 rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
1010 static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
1011 struct osd_iit_param *param,
1012 struct osd_idmap_cache **oic, const bool noslot)
1014 struct osd_scrub *scrub = &dev->od_scrub;
1015 struct ptlrpc_thread *thread = &scrub->os_thread;
1017 struct osd_inode_id *lid;
1020 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
1021 struct l_wait_info lwi;
1023 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
1024 if (likely(lwi.lwi_timeout > 0))
1025 l_wait_event(thread->t_ctl_waitq,
1026 !list_empty(&scrub->os_inconsistent_items) ||
1027 !thread_is_running(thread),
1031 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
1032 spin_lock(&scrub->os_lock);
1033 thread_set_flags(thread, SVC_STOPPING);
1034 spin_unlock(&scrub->os_lock);
1035 return SCRUB_NEXT_CRASH;
1038 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
1039 return SCRUB_NEXT_FATAL;
1041 if (unlikely(!thread_is_running(thread)))
1042 return SCRUB_NEXT_EXIT;
1044 if (!list_empty(&scrub->os_inconsistent_items)) {
1045 spin_lock(&scrub->os_lock);
1046 if (likely(!list_empty(&scrub->os_inconsistent_items))) {
1047 struct osd_inconsistent_item *oii;
1049 oii = list_entry(scrub->os_inconsistent_items.next,
1050 struct osd_inconsistent_item, oii_list);
1051 spin_unlock(&scrub->os_lock);
1053 *oic = &oii->oii_cache;
1054 scrub->os_in_prior = 1;
1058 spin_unlock(&scrub->os_lock);
1062 return SCRUB_NEXT_WAIT;
1064 rc = osd_iit_next(param, &scrub->os_pos_current);
1068 *oic = &scrub->os_oic;
1069 fid = &(*oic)->oic_fid;
1070 lid = &(*oic)->oic_lid;
1071 rc = osd_iit_iget(info, dev, fid, lid,
1072 scrub->os_pos_current, param->sb, true);
1076 static int osd_preload_next(struct osd_thread_info *info,
1077 struct osd_device *dev, struct osd_iit_param *param,
1078 struct osd_idmap_cache **oic, const bool noslot)
1080 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1081 struct osd_scrub *scrub = &dev->od_scrub;
1082 struct ptlrpc_thread *thread = &scrub->os_thread;
1085 if (thread_is_running(thread) &&
1086 ooc->ooc_pos_preload >= scrub->os_pos_current)
1087 return SCRUB_NEXT_EXIT;
1089 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1093 rc = osd_iit_iget(info, dev,
1094 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1095 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1096 ooc->ooc_pos_preload, param->sb, false);
1101 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1103 spin_lock(&scrub->os_lock);
1104 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1105 !list_empty(&scrub->os_inconsistent_items) ||
1106 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1107 scrub->os_waiting = 0;
1109 scrub->os_waiting = 1;
1110 spin_unlock(&scrub->os_lock);
1112 return !scrub->os_waiting;
1115 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1116 struct osd_iit_param *param,
1117 struct osd_idmap_cache *oic, bool *noslot, int rc)
1119 struct l_wait_info lwi = { 0 };
1120 struct osd_scrub *scrub = &dev->od_scrub;
1121 struct scrub_file *sf = &scrub->os_file;
1122 struct ptlrpc_thread *thread = &scrub->os_thread;
1123 struct osd_otable_it *it = dev->od_otable_it;
1124 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1127 case SCRUB_NEXT_NOSCRUB:
1128 down_write(&scrub->os_rwsem);
1129 scrub->os_new_checked++;
1130 sf->sf_items_noscrub++;
1131 up_write(&scrub->os_rwsem);
1132 case SCRUB_NEXT_CONTINUE:
1133 case SCRUB_NEXT_WAIT:
1137 rc = osd_scrub_check_update(info, dev, oic, rc);
1139 scrub->os_in_prior = 0;
1143 rc = osd_scrub_checkpoint(scrub);
1145 CDEBUG(D_LFSCK, "%s: fail to checkpoint, pos = %u: "
1146 "rc = %d\n", osd_scrub2name(scrub),
1147 scrub->os_pos_current, rc);
1148 /* Continue, as long as the scrub itself can go ahead. */
1151 if (scrub->os_in_prior) {
1152 scrub->os_in_prior = 0;
1157 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1158 ooc->ooc_pos_preload < scrub->os_pos_current) {
1159 spin_lock(&scrub->os_lock);
1160 it->ooi_waiting = 0;
1161 wake_up_all(&thread->t_ctl_waitq);
1162 spin_unlock(&scrub->os_lock);
1165 if (rc == SCRUB_NEXT_CONTINUE)
1168 if (scrub->os_full_speed || !ooc || osd_scrub_has_window(scrub, ooc)) {
1174 l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
1177 if (!ooc || osd_scrub_has_window(scrub, ooc))
1184 static int osd_preload_exec(struct osd_thread_info *info,
1185 struct osd_device *dev, struct osd_iit_param *param,
1186 struct osd_idmap_cache *oic, bool *noslot, int rc)
1188 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1191 ooc->ooc_cached_items++;
1192 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1193 ~OSD_OTABLE_IT_CACHE_MASK;
1195 return rc > 0 ? 0 : rc;
1198 #define SCRUB_IT_ALL 1
1199 #define SCRUB_IT_CRASH 2
1201 static void osd_scrub_join(struct osd_device *dev, __u32 flags,
1204 struct osd_scrub *scrub = &dev->od_scrub;
1205 struct ptlrpc_thread *thread = &scrub->os_thread;
1206 struct scrub_file *sf = &scrub->os_file;
1210 LASSERT(!(flags & SS_AUTO_PARTIAL));
1212 down_write(&scrub->os_rwsem);
1213 scrub->os_in_join = 1;
1214 if (flags & SS_SET_FAILOUT)
1215 sf->sf_param |= SP_FAILOUT;
1216 else if (flags & SS_CLEAR_FAILOUT)
1217 sf->sf_param &= ~SP_FAILOUT;
1219 if (flags & SS_SET_DRYRUN)
1220 sf->sf_param |= SP_DRYRUN;
1221 else if (flags & SS_CLEAR_DRYRUN)
1222 sf->sf_param &= ~SP_DRYRUN;
1224 if (flags & SS_RESET) {
1225 osd_scrub_file_reset(scrub,
1226 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1227 inconsistent ? SF_INCONSISTENT : 0);
1228 sf->sf_status = SS_SCANNING;
1231 if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
1232 scrub->os_full_speed = 1;
1234 scrub->os_full_speed = 0;
1236 if (flags & SS_AUTO_FULL) {
1237 sf->sf_flags |= SF_AUTO;
1238 scrub->os_full_speed = 1;
1241 scrub->os_new_checked = 0;
1242 if (sf->sf_pos_last_checkpoint != 0)
1243 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
1245 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
1247 scrub->os_pos_current = sf->sf_pos_latest_start;
1248 sf->sf_time_latest_start = cfs_time_current_sec();
1249 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
1250 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
1251 rc = osd_scrub_file_store(scrub);
1253 CDEBUG(D_LFSCK, "%s: fail to store scrub file when join "
1254 "the OI scrub: rc = %d\n", osd_scrub2name(scrub), rc);
1256 spin_lock(&scrub->os_lock);
1257 scrub->os_waiting = 0;
1258 scrub->os_paused = 0;
1259 scrub->os_partial_scan = 0;
1260 scrub->os_in_join = 0;
1261 scrub->os_full_scrub = 0;
1262 spin_unlock(&scrub->os_lock);
1263 wake_up_all(&thread->t_ctl_waitq);
1264 up_write(&scrub->os_rwsem);
1269 static int osd_inode_iteration(struct osd_thread_info *info,
1270 struct osd_device *dev, __u32 max, bool preload)
1272 struct osd_scrub *scrub = &dev->od_scrub;
1273 struct ptlrpc_thread *thread = &scrub->os_thread;
1274 struct scrub_file *sf = &scrub->os_file;
1275 osd_iit_next_policy next;
1276 osd_iit_exec_policy exec;
1279 struct osd_iit_param *param;
1280 struct l_wait_info lwi = { 0 };
1282 le32_to_cpu(LDISKFS_SB(osd_sb(dev))->s_es->s_inodes_count);
1290 param = &scrub->os_iit_param;
1291 memset(param, 0, sizeof(*param));
1292 param->sb = osd_sb(dev);
1294 while (scrub->os_partial_scan && !scrub->os_in_join) {
1295 struct osd_idmap_cache *oic = NULL;
1297 rc = osd_scrub_next(info, dev, param, &oic, noslot);
1299 case SCRUB_NEXT_EXIT:
1301 case SCRUB_NEXT_CRASH:
1302 RETURN(SCRUB_IT_CRASH);
1303 case SCRUB_NEXT_FATAL:
1305 case SCRUB_NEXT_WAIT: {
1306 struct kstatfs *ksfs = &info->oti_ksfs;
1309 if (dev->od_full_scrub_ratio == OFSR_NEVER ||
1310 unlikely(sf->sf_items_updated_prior == 0))
1313 if (dev->od_full_scrub_ratio == OFSR_DIRECTLY ||
1314 scrub->os_full_scrub) {
1315 osd_scrub_join(dev, SS_AUTO_FULL | SS_RESET,
1320 rc = param->sb->s_op->statfs(param->sb->s_root, ksfs);
1322 __u64 used = ksfs->f_files - ksfs->f_ffree;
1324 do_div(used, sf->sf_items_updated_prior);
1325 /* If we hit too much inconsistent OI
1326 * mappings during the partial scan,
1327 * then scan the device completely. */
1328 if (used < dev->od_full_scrub_ratio) {
1330 SS_AUTO_FULL | SS_RESET, true);
1336 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) &&
1340 saved_flags = sf->sf_flags;
1341 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
1342 SF_UPGRADE | SF_AUTO);
1343 sf->sf_status = SS_COMPLETED;
1344 l_wait_event(thread->t_ctl_waitq,
1345 !thread_is_running(thread) ||
1346 !scrub->os_partial_scan ||
1347 scrub->os_in_join ||
1348 !list_empty(&scrub->os_inconsistent_items),
1350 sf->sf_flags = saved_flags;
1351 sf->sf_status = SS_SCANNING;
1353 if (unlikely(!thread_is_running(thread)))
1356 if (!scrub->os_partial_scan || scrub->os_in_join)
1362 LASSERTF(rc == 0, "rc = %d\n", rc);
1364 osd_scrub_exec(info, dev, param, oic, &noslot, rc);
1371 l_wait_event(thread->t_ctl_waitq,
1372 !thread_is_running(thread) || !scrub->os_in_join,
1375 if (unlikely(!thread_is_running(thread)))
1381 next = osd_scrub_next;
1382 exec = osd_scrub_exec;
1383 pos = &scrub->os_pos_current;
1384 count = &scrub->os_new_checked;
1385 param->start = *pos;
1386 param->bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param->sb);
1388 (*pos - 1) % LDISKFS_INODES_PER_GROUP(param->sb);
1390 1 + param->bg * LDISKFS_INODES_PER_GROUP(param->sb);
1392 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1394 next = osd_preload_next;
1395 exec = osd_preload_exec;
1396 pos = &ooc->ooc_pos_preload;
1397 count = &ooc->ooc_cached_items;
1398 param = &dev->od_otable_it->ooi_iit_param;
1402 while (*pos <= limit && *count < max) {
1403 struct ldiskfs_group_desc *desc;
1404 bool next_group = false;
1406 desc = ldiskfs_get_group_desc(param->sb, param->bg, NULL);
1410 if (desc->bg_flags & cpu_to_le16(LDISKFS_BG_INODE_UNINIT)) {
1415 param->bitmap = ldiskfs_read_inode_bitmap(param->sb, param->bg);
1416 if (!param->bitmap) {
1417 CERROR("%s: fail to read bitmap for %u, "
1418 "scrub will stop, urgent mode\n",
1419 osd_scrub2name(scrub), (__u32)param->bg);
1424 struct osd_idmap_cache *oic = NULL;
1427 ldiskfs_itable_unused_count(param->sb, desc) >=
1428 LDISKFS_INODES_PER_GROUP(param->sb)) {
1433 rc = next(info, dev, param, &oic, noslot);
1435 case SCRUB_NEXT_BREAK:
1438 case SCRUB_NEXT_EXIT:
1439 brelse(param->bitmap);
1441 case SCRUB_NEXT_CRASH:
1442 brelse(param->bitmap);
1443 RETURN(SCRUB_IT_CRASH);
1444 case SCRUB_NEXT_FATAL:
1445 brelse(param->bitmap);
1449 rc = exec(info, dev, param, oic, &noslot, rc);
1450 } while (!rc && *pos <= limit && *count < max);
1453 if (param->bitmap) {
1454 brelse(param->bitmap);
1455 param->bitmap = NULL;
1465 param->bg * LDISKFS_INODES_PER_GROUP(param->sb);
1466 *pos = param->gbase;
1467 param->start = *pos;
1472 RETURN(SCRUB_IT_ALL);
1478 static int osd_otable_it_preload(const struct lu_env *env,
1479 struct osd_otable_it *it)
1481 struct osd_device *dev = it->ooi_dev;
1482 struct osd_scrub *scrub = &dev->od_scrub;
1483 struct osd_otable_cache *ooc = &it->ooi_cache;
1487 rc = osd_inode_iteration(osd_oti_get(env), dev,
1488 OSD_OTABLE_IT_CACHE_SIZE, true);
1489 if (rc == SCRUB_IT_ALL)
1490 it->ooi_all_cached = 1;
1492 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1493 spin_lock(&scrub->os_lock);
1494 scrub->os_waiting = 0;
1495 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1496 spin_unlock(&scrub->os_lock);
1499 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1502 static int osd_scrub_main(void *args)
1505 struct osd_device *dev = (struct osd_device *)args;
1506 struct osd_scrub *scrub = &dev->od_scrub;
1507 struct ptlrpc_thread *thread = &scrub->os_thread;
1511 rc = lu_env_init(&env, LCT_LOCAL);
1513 CDEBUG(D_LFSCK, "%s: OI scrub fail to init env: rc = %d\n",
1514 osd_scrub2name(scrub), rc);
1518 rc = osd_scrub_prep(dev);
1520 CDEBUG(D_LFSCK, "%s: OI scrub fail to scrub prep: rc = %d\n",
1521 osd_scrub2name(scrub), rc);
1525 if (!scrub->os_full_speed && !scrub->os_partial_scan) {
1526 struct l_wait_info lwi = { 0 };
1527 struct osd_otable_it *it = dev->od_otable_it;
1528 struct osd_otable_cache *ooc = &it->ooi_cache;
1530 l_wait_event(thread->t_ctl_waitq,
1531 it->ooi_user_ready || !thread_is_running(thread),
1533 if (unlikely(!thread_is_running(thread)))
1536 scrub->os_pos_current = ooc->ooc_pos_preload;
1539 CDEBUG(D_LFSCK, "%s: OI scrub start, flags = 0x%x, pos = %u\n",
1540 osd_scrub2name(scrub), scrub->os_start_flags,
1541 scrub->os_pos_current);
1543 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1544 if (unlikely(rc == SCRUB_IT_CRASH))
1545 GOTO(out, rc = -EINVAL);
1549 rc = osd_scrub_post(scrub, rc);
1550 CDEBUG(D_LFSCK, "%s: OI scrub: stop, pos = %u: rc = %d\n",
1551 osd_scrub2name(scrub), scrub->os_pos_current, rc);
1554 while (!list_empty(&scrub->os_inconsistent_items)) {
1555 struct osd_inconsistent_item *oii;
1557 oii = list_entry(scrub->os_inconsistent_items.next,
1558 struct osd_inconsistent_item, oii_list);
1559 list_del_init(&oii->oii_list);
1565 spin_lock(&scrub->os_lock);
1566 thread_set_flags(thread, SVC_STOPPED);
1567 wake_up_all(&thread->t_ctl_waitq);
1568 spin_unlock(&scrub->os_lock);
1572 /* initial OI scrub */
1574 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1575 struct dentry *, filldir_t filldir);
1577 #ifdef HAVE_FILLDIR_USE_CTX
1578 static int osd_ios_varfid_fill(struct dir_context *buf, const char *name,
1579 int namelen, loff_t offset, __u64 ino,
1581 static int osd_ios_lf_fill(struct dir_context *buf, const char *name,
1582 int namelen, loff_t offset, __u64 ino,
1584 static int osd_ios_dl_fill(struct dir_context *buf, const char *name,
1585 int namelen, loff_t offset, __u64 ino,
1587 static int osd_ios_uld_fill(struct dir_context *buf, const char *name,
1588 int namelen, loff_t offset, __u64 ino,
1591 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1592 loff_t offset, __u64 ino, unsigned d_type);
1593 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1594 loff_t offset, __u64 ino, unsigned d_type);
1595 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1596 loff_t offset, __u64 ino, unsigned d_type);
1597 static int osd_ios_uld_fill(void *buf, const char *name, int namelen,
1598 loff_t offset, __u64 ino, unsigned d_type);
1602 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1603 struct dentry *dentry, filldir_t filldir);
1605 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1606 struct dentry *dentry, filldir_t filldir);
1609 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1610 struct dentry *dentry, filldir_t filldir);
1613 OLF_SCAN_SUBITEMS = 0x0001,
1614 OLF_HIDE_FID = 0x0002,
1615 OLF_SHOW_NAME = 0x0004,
1617 OLF_IDX_IN_FID = 0x0010,
1622 struct lu_fid olm_fid;
1625 scandir_t olm_scandir;
1626 filldir_t olm_filldir;
1629 /* Add the new introduced local files in the list in the future. */
1630 static const struct osd_lf_map osd_lf_maps[] = {
1633 .olm_name = CATLIST,
1635 .f_seq = FID_SEQ_LOCAL_FILE,
1636 .f_oid = LLOG_CATALOGS_OID,
1638 .olm_flags = OLF_SHOW_NAME,
1639 .olm_namelen = sizeof(CATLIST) - 1,
1644 .olm_name = MOUNT_CONFIGS_DIR,
1646 .f_seq = FID_SEQ_LOCAL_FILE,
1647 .f_oid = MGS_CONFIGS_OID,
1649 .olm_flags = OLF_SCAN_SUBITEMS,
1650 .olm_namelen = sizeof(MOUNT_CONFIGS_DIR) - 1,
1651 .olm_scandir = osd_ios_general_scan,
1652 .olm_filldir = osd_ios_varfid_fill,
1655 /* NIDTBL_VERSIONS */
1657 .olm_name = MGS_NIDTBL_DIR,
1658 .olm_flags = OLF_SCAN_SUBITEMS,
1659 .olm_namelen = sizeof(MGS_NIDTBL_DIR) - 1,
1660 .olm_scandir = osd_ios_general_scan,
1661 .olm_filldir = osd_ios_varfid_fill,
1666 .olm_name = "PENDING",
1667 .olm_namelen = sizeof("PENDING") - 1,
1674 .f_seq = FID_SEQ_ROOT,
1675 .f_oid = FID_OID_ROOT,
1677 .olm_flags = OLF_SCAN_SUBITEMS | OLF_HIDE_FID,
1678 .olm_namelen = sizeof("ROOT") - 1,
1679 .olm_scandir = osd_ios_ROOT_scan,
1682 /* changelog_catalog */
1684 .olm_name = CHANGELOG_CATALOG,
1685 .olm_namelen = sizeof(CHANGELOG_CATALOG) - 1,
1688 /* changelog_users */
1690 .olm_name = CHANGELOG_USERS,
1691 .olm_namelen = sizeof(CHANGELOG_USERS) - 1,
1698 .f_seq = FID_SEQ_LOCAL_FILE,
1699 .f_oid = FLD_INDEX_OID,
1701 .olm_flags = OLF_SHOW_NAME,
1702 .olm_namelen = sizeof("fld") - 1,
1707 .olm_name = LAST_RCVD,
1709 .f_seq = FID_SEQ_LOCAL_FILE,
1710 .f_oid = LAST_RECV_OID,
1712 .olm_flags = OLF_SHOW_NAME,
1713 .olm_namelen = sizeof(LAST_RCVD) - 1,
1718 .olm_name = REPLY_DATA,
1720 .f_seq = FID_SEQ_LOCAL_FILE,
1721 .f_oid = REPLY_DATA_OID,
1723 .olm_flags = OLF_SHOW_NAME,
1724 .olm_namelen = sizeof(REPLY_DATA) - 1,
1729 .olm_name = LOV_OBJID,
1731 .f_seq = FID_SEQ_LOCAL_FILE,
1732 .f_oid = MDD_LOV_OBJ_OID,
1734 .olm_flags = OLF_SHOW_NAME,
1735 .olm_namelen = sizeof(LOV_OBJID) - 1,
1740 .olm_name = LOV_OBJSEQ,
1742 .f_seq = FID_SEQ_LOCAL_FILE,
1743 .f_oid = MDD_LOV_OBJ_OSEQ,
1745 .olm_flags = OLF_SHOW_NAME,
1746 .olm_namelen = sizeof(LOV_OBJSEQ) - 1,
1751 .olm_name = QMT_DIR,
1752 .olm_flags = OLF_SCAN_SUBITEMS,
1753 .olm_namelen = sizeof(QMT_DIR) - 1,
1754 .olm_scandir = osd_ios_general_scan,
1755 .olm_filldir = osd_ios_varfid_fill,
1760 .olm_name = QSD_DIR,
1761 .olm_flags = OLF_SCAN_SUBITEMS,
1762 .olm_namelen = sizeof(QSD_DIR) - 1,
1763 .olm_scandir = osd_ios_general_scan,
1764 .olm_filldir = osd_ios_varfid_fill,
1769 .olm_name = "seq_ctl",
1771 .f_seq = FID_SEQ_LOCAL_FILE,
1772 .f_oid = FID_SEQ_CTL_OID,
1774 .olm_flags = OLF_SHOW_NAME,
1775 .olm_namelen = sizeof("seq_ctl") - 1,
1780 .olm_name = "seq_srv",
1782 .f_seq = FID_SEQ_LOCAL_FILE,
1783 .f_oid = FID_SEQ_SRV_OID,
1785 .olm_flags = OLF_SHOW_NAME,
1786 .olm_namelen = sizeof("seq_srv") - 1,
1791 .olm_name = HEALTH_CHECK,
1793 .f_seq = FID_SEQ_LOCAL_FILE,
1794 .f_oid = OFD_HEALTH_CHECK_OID,
1796 .olm_flags = OLF_SHOW_NAME,
1797 .olm_namelen = sizeof(HEALTH_CHECK) - 1,
1802 .olm_name = LFSCK_DIR,
1803 .olm_namelen = sizeof(LFSCK_DIR) - 1,
1804 .olm_scandir = osd_ios_general_scan,
1805 .olm_filldir = osd_ios_varfid_fill,
1808 /* lfsck_bookmark */
1810 .olm_name = LFSCK_BOOKMARK,
1811 .olm_namelen = sizeof(LFSCK_BOOKMARK) - 1,
1816 .olm_name = LFSCK_LAYOUT,
1817 .olm_namelen = sizeof(LFSCK_LAYOUT) - 1,
1820 /* lfsck_namespace */
1822 .olm_name = LFSCK_NAMESPACE,
1823 .olm_namelen = sizeof(LFSCK_NAMESPACE) - 1,
1826 /* OBJECTS, upgrade from old device */
1828 .olm_name = OBJECTS,
1829 .olm_flags = OLF_SCAN_SUBITEMS,
1830 .olm_namelen = sizeof(OBJECTS) - 1,
1831 .olm_scandir = osd_ios_OBJECTS_scan,
1834 /* lquota_v2.user, upgrade from old device */
1836 .olm_name = "lquota_v2.user",
1837 .olm_namelen = sizeof("lquota_v2.user") - 1,
1840 /* lquota_v2.group, upgrade from old device */
1842 .olm_name = "lquota_v2.group",
1843 .olm_namelen = sizeof("lquota_v2.group") - 1,
1846 /* LAST_GROUP, upgrade from old device */
1848 .olm_name = "LAST_GROUP",
1850 .f_seq = FID_SEQ_LOCAL_FILE,
1851 .f_oid = OFD_LAST_GROUP_OID,
1853 .olm_flags = OLF_SHOW_NAME,
1854 .olm_namelen = sizeof("LAST_GROUP") - 1,
1857 /* committed batchid for cross-MDT operation */
1859 .olm_name = "BATCHID",
1861 .f_seq = FID_SEQ_LOCAL_FILE,
1862 .f_oid = BATCHID_COMMITTED_OID,
1864 .olm_flags = OLF_SHOW_NAME,
1865 .olm_namelen = sizeof("BATCHID") - 1,
1868 /* OSP update logs update_log{_dir} use f_seq = FID_SEQ_UPDATE_LOG{_DIR}
1869 * and f_oid = index for their log files. See lu_update_log{_dir}_fid()
1870 * for more details. */
1874 .olm_name = "update_log",
1876 .f_seq = FID_SEQ_UPDATE_LOG,
1878 .olm_flags = OLF_SHOW_NAME | OLF_IDX_IN_FID,
1879 .olm_namelen = sizeof("update_log") - 1,
1882 /* update_log_dir */
1884 .olm_name = "update_log_dir",
1886 .f_seq = FID_SEQ_UPDATE_LOG_DIR,
1888 .olm_flags = OLF_SHOW_NAME | OLF_SCAN_SUBITEMS |
1890 .olm_namelen = sizeof("update_log_dir") - 1,
1891 .olm_scandir = osd_ios_general_scan,
1892 .olm_filldir = osd_ios_uld_fill,
1897 .olm_name = "lost+found",
1899 .f_seq = FID_SEQ_LOCAL_FILE,
1900 .f_oid = OSD_LPF_OID,
1902 .olm_flags = OLF_SCAN_SUBITEMS,
1903 .olm_namelen = sizeof("lost+found") - 1,
1904 .olm_scandir = osd_ios_general_scan,
1905 .olm_filldir = osd_ios_lf_fill,
1913 /* Add the new introduced files under .lustre/ in the list in the future. */
1914 static const struct osd_lf_map osd_dl_maps[] = {
1919 .f_seq = FID_SEQ_DOT_LUSTRE,
1920 .f_oid = FID_OID_DOT_LUSTRE_OBF,
1922 .olm_namelen = sizeof("fid") - 1,
1924 /* .lustre/lost+found */
1926 .olm_name = "lost+found",
1928 .f_seq = FID_SEQ_DOT_LUSTRE,
1929 .f_oid = FID_OID_DOT_LUSTRE_LPF,
1931 .olm_namelen = sizeof("lost+found") - 1,
1938 struct osd_ios_item {
1939 struct list_head oii_list;
1940 struct dentry *oii_dentry;
1941 scandir_t oii_scandir;
1942 filldir_t oii_filldir;
1945 struct osd_ios_filldir_buf {
1946 #ifdef HAVE_DIR_CONTEXT
1947 /* please keep it as first member */
1948 struct dir_context ctx;
1950 struct osd_thread_info *oifb_info;
1951 struct osd_device *oifb_dev;
1952 struct dentry *oifb_dentry;
1956 static inline struct dentry *
1957 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1959 struct dentry *dentry;
1961 dentry = ll_lookup_one_len(name, parent, namelen);
1962 if (IS_ERR(dentry)) {
1963 int rc = PTR_ERR(dentry);
1966 CERROR("Fail to find %.*s in %.*s (%lu/%u): rc = %d\n",
1967 namelen, name, parent->d_name.len,
1968 parent->d_name.name, parent->d_inode->i_ino,
1969 parent->d_inode->i_generation, rc);
1974 if (dentry->d_inode == NULL) {
1976 return ERR_PTR(-ENOENT);
1983 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1984 scandir_t scandir, filldir_t filldir)
1986 struct osd_ios_item *item;
1989 OBD_ALLOC_PTR(item);
1993 INIT_LIST_HEAD(&item->oii_list);
1994 item->oii_dentry = dget(dentry);
1995 item->oii_scandir = scandir;
1996 item->oii_filldir = filldir;
1997 list_add_tail(&item->oii_list, &dev->od_ios_list);
2003 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
2005 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
2006 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
2007 * reference the inode, or fixed if it is missing or references another inode.
2010 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
2011 struct inode *inode, const struct lu_fid *fid, int flags)
2013 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
2014 struct osd_inode_id *id = &info->oti_id;
2015 struct osd_inode_id *id2 = &info->oti_id2;
2016 struct osd_scrub *scrub = &dev->od_scrub;
2017 struct scrub_file *sf = &scrub->os_file;
2022 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
2023 &info->oti_ost_attrs);
2024 if (rc != 0 && rc != -ENODATA) {
2025 CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
2026 "rc = %d\n", osd_name(dev), rc);
2031 osd_id_gen(id, inode->i_ino, inode->i_generation);
2032 if (rc == -ENODATA) {
2033 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID) {
2034 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
2037 if (flags & OLF_IDX_IN_FID) {
2038 LASSERT(dev->od_index >= 0);
2040 tfid.f_oid = dev->od_index;
2043 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
2045 CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
2046 "scrub: rc = %d\n", osd_name(dev), rc);
2051 if (lma->lma_compat & LMAC_NOT_IN_OI)
2054 tfid = lma->lma_self_fid;
2057 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
2062 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
2063 DTO_INDEX_INSERT, true, 0, NULL);
2070 if (osd_id_eq_strict(id, id2))
2073 if (!(sf->sf_flags & SF_INCONSISTENT)) {
2074 osd_scrub_file_reset(scrub,
2075 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
2077 rc = osd_scrub_file_store(scrub);
2082 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
2083 DTO_INDEX_UPDATE, true, 0, NULL);
2091 * It scans the /lost+found, and for the OST-object (with filter_fid
2092 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
2094 #ifdef HAVE_FILLDIR_USE_CTX
2095 static int osd_ios_lf_fill(struct dir_context *buf,
2097 static int osd_ios_lf_fill(void *buf,
2099 const char *name, int namelen,
2100 loff_t offset, __u64 ino, unsigned d_type)
2102 struct osd_ios_filldir_buf *fill_buf =
2103 (struct osd_ios_filldir_buf *)buf;
2104 struct osd_thread_info *info = fill_buf->oifb_info;
2105 struct osd_device *dev = fill_buf->oifb_dev;
2106 struct lu_fid *fid = &info->oti_fid;
2107 struct osd_scrub *scrub = &dev->od_scrub;
2108 struct dentry *parent = fill_buf->oifb_dentry;
2109 struct dentry *child;
2110 struct inode *dir = parent->d_inode;
2111 struct inode *inode;
2115 fill_buf->oifb_items++;
2117 /* skip any '.' started names */
2121 scrub->os_lf_scanned++;
2122 child = osd_ios_lookup_one_len(name, parent, namelen);
2123 if (IS_ERR(child)) {
2124 CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
2125 osd_name(dev), namelen, name, (int)PTR_ERR(child));
2129 inode = child->d_inode;
2130 if (S_ISDIR(inode->i_mode)) {
2131 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2134 CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
2135 "rc = %d\n", osd_name(dev), namelen, name, rc);
2139 if (!S_ISREG(inode->i_mode))
2142 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
2143 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
2144 rc = osd_obj_map_recover(info, dev, dir, child, fid);
2146 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
2147 "/lost+found.\n", namelen, name, PFID(fid));
2148 scrub->os_lf_repaired++;
2150 CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
2152 osd_name(dev), namelen, name, PFID(fid), rc);
2156 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
2157 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
2158 * can process them in furtuer. */
2164 scrub->os_lf_failed++;
2166 /* skip the failure to make the scanning to continue. */
2170 #ifdef HAVE_FILLDIR_USE_CTX
2171 static int osd_ios_varfid_fill(struct dir_context *buf,
2173 static int osd_ios_varfid_fill(void *buf,
2175 const char *name, int namelen,
2176 loff_t offset, __u64 ino, unsigned d_type)
2178 struct osd_ios_filldir_buf *fill_buf =
2179 (struct osd_ios_filldir_buf *)buf;
2180 struct osd_device *dev = fill_buf->oifb_dev;
2181 struct dentry *child;
2185 fill_buf->oifb_items++;
2187 /* skip any '.' started names */
2191 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2193 RETURN(PTR_ERR(child));
2195 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2197 if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
2198 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2199 osd_ios_varfid_fill);
2205 #ifdef HAVE_FILLDIR_USE_CTX
2206 static int osd_ios_dl_fill(struct dir_context *buf,
2208 static int osd_ios_dl_fill(void *buf,
2210 const char *name, int namelen,
2211 loff_t offset, __u64 ino, unsigned d_type)
2213 struct osd_ios_filldir_buf *fill_buf =
2214 (struct osd_ios_filldir_buf *)buf;
2215 struct osd_device *dev = fill_buf->oifb_dev;
2216 const struct osd_lf_map *map;
2217 struct dentry *child;
2221 fill_buf->oifb_items++;
2223 /* skip any '.' started names */
2227 for (map = osd_dl_maps; map->olm_name != NULL; map++) {
2228 if (map->olm_namelen != namelen)
2231 if (strncmp(map->olm_name, name, namelen) == 0)
2235 if (map->olm_name == NULL)
2238 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2240 RETURN(PTR_ERR(child));
2242 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2243 &map->olm_fid, map->olm_flags);
2249 #ifdef HAVE_FILLDIR_USE_CTX
2250 static int osd_ios_uld_fill(struct dir_context *buf,
2252 static int osd_ios_uld_fill(void *buf,
2254 const char *name, int namelen,
2255 loff_t offset, __u64 ino, unsigned d_type)
2257 struct osd_ios_filldir_buf *fill_buf =
2258 (struct osd_ios_filldir_buf *)buf;
2259 struct dentry *child;
2264 fill_buf->oifb_items++;
2266 /* skip any non-DFID format name */
2270 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2272 RETURN(PTR_ERR(child));
2274 /* skip the start '[' */
2275 sscanf(&name[1], SFID, RFID(&tfid));
2276 if (fid_is_sane(&tfid))
2277 rc = osd_ios_scan_one(fill_buf->oifb_info, fill_buf->oifb_dev,
2278 child->d_inode, &tfid, 0);
2286 #ifdef HAVE_FILLDIR_USE_CTX
2287 static int osd_ios_root_fill(struct dir_context *buf,
2289 static int osd_ios_root_fill(void *buf,
2291 const char *name, int namelen,
2292 loff_t offset, __u64 ino, unsigned d_type)
2294 struct osd_ios_filldir_buf *fill_buf =
2295 (struct osd_ios_filldir_buf *)buf;
2296 struct osd_device *dev = fill_buf->oifb_dev;
2297 const struct osd_lf_map *map;
2298 struct dentry *child;
2302 fill_buf->oifb_items++;
2304 /* skip any '.' started names */
2308 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
2309 if (map->olm_namelen != namelen)
2312 if (strncmp(map->olm_name, name, namelen) == 0)
2316 if (map->olm_name == NULL)
2319 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2321 RETURN(PTR_ERR(child));
2323 if (!(map->olm_flags & OLF_NO_OI))
2324 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2325 &map->olm_fid, map->olm_flags);
2326 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
2327 rc = osd_ios_new_item(dev, child, map->olm_scandir,
2335 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
2336 struct dentry *dentry, filldir_t filldir)
2338 struct osd_ios_filldir_buf buf = {
2339 #ifdef HAVE_DIR_CONTEXT
2340 .ctx.actor = filldir,
2344 .oifb_dentry = dentry };
2345 struct file *filp = &info->oti_file;
2346 struct inode *inode = dentry->d_inode;
2347 const struct file_operations *fops = inode->i_fop;
2351 LASSERT(filldir != NULL);
2354 filp->f_path.dentry = dentry;
2355 filp->f_mode = FMODE_64BITHASH;
2356 filp->f_mapping = inode->i_mapping;
2358 filp->private_data = NULL;
2359 set_file_inode(filp, inode);
2363 #ifdef HAVE_DIR_CONTEXT
2364 buf.ctx.pos = filp->f_pos;
2365 rc = fops->iterate(filp, &buf.ctx);
2366 filp->f_pos = buf.ctx.pos;
2368 rc = fops->readdir(filp, &buf, filldir);
2370 } while (rc >= 0 && buf.oifb_items > 0 &&
2371 filp->f_pos != LDISKFS_HTREE_EOF_64BIT);
2372 fops->release(inode, filp);
2378 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
2379 struct dentry *dentry, filldir_t filldir)
2381 struct osd_scrub *scrub = &dev->od_scrub;
2382 struct scrub_file *sf = &scrub->os_file;
2383 struct dentry *child;
2387 /* It is existing MDT0 device. We only allow the case of object without
2388 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
2389 * can generate IGIF mode FID for the object and related OI mapping. If
2390 * it is on other MDTs, then becuase file-level backup/restore, related
2391 * OI mapping may be invalid already, we do not know which is the right
2392 * FID for the object. We only allow IGIF objects to reside on the MDT0.
2394 * XXX: For the case of object on non-MDT0 device with neither LMA nor
2395 * "fid" xattr, then something crashed. We cannot re-generate the
2396 * FID directly, instead, the OI scrub will scan the OI structure
2397 * and try to re-generate the LMA from the OI mapping. But if the
2398 * OI mapping crashed or lost also, then we have to give up under
2399 * double failure cases. */
2400 scrub->os_convert_igif = 1;
2401 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
2402 strlen(dot_lustre_name));
2403 if (IS_ERR(child)) {
2404 rc = PTR_ERR(child);
2405 if (rc == -ENOENT) {
2406 /* It is 1.8 MDT device. */
2407 if (!(sf->sf_flags & SF_UPGRADE)) {
2408 osd_scrub_file_reset(scrub,
2409 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
2411 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2412 rc = osd_scrub_file_store(scrub);
2418 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
2419 * so the client will get IGIF for the ".lustre" object when
2422 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
2423 * it does not know whether there are some old clients cached
2424 * the ".lustre" IGIF during the upgrading. Two choices:
2426 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
2427 * It will allow the old connected clients to access the
2428 * ".lustre" with cached IGIF. But it will cause others
2429 * on the MDT failed to check "fid_is_dot_lustre()".
2431 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
2432 * for ".lustre" in spite of whether there are some clients
2433 * cached the ".lustre" IGIF or not. It enables the check
2434 * "fid_is_dot_lustre()" on the MDT, although it will cause
2435 * that the old connected clients cannot access the ".lustre"
2436 * with the cached IGIF.
2438 * Usually, it is rare case for the old connected clients
2439 * to access the ".lustre" with cached IGIF. So we prefer
2440 * to the solution 2). */
2441 rc = osd_ios_scan_one(info, dev, child->d_inode,
2442 &LU_DOT_LUSTRE_FID, 0);
2444 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2453 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
2454 struct dentry *dentry, filldir_t filldir)
2456 struct osd_scrub *scrub = &dev->od_scrub;
2457 struct scrub_file *sf = &scrub->os_file;
2458 struct dentry *child;
2462 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
2463 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2464 rc = osd_scrub_file_store(scrub);
2469 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
2470 if (!IS_ERR(child)) {
2471 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2474 rc = PTR_ERR(child);
2477 if (rc != 0 && rc != -ENOENT)
2480 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
2481 if (!IS_ERR(child)) {
2482 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2485 rc = PTR_ERR(child);
2494 static int osd_initial_OI_scrub(struct osd_thread_info *info,
2495 struct osd_device *dev)
2497 struct osd_ios_item *item = NULL;
2498 scandir_t scandir = osd_ios_general_scan;
2499 filldir_t filldir = osd_ios_root_fill;
2500 struct dentry *dentry = osd_sb(dev)->s_root;
2501 const struct osd_lf_map *map = osd_lf_maps;
2505 /* Lookup IGIF in OI by force for initial OI scrub. */
2506 dev->od_igif_inoi = 1;
2509 rc = scandir(info, dev, dentry, filldir);
2511 dput(item->oii_dentry);
2518 if (list_empty(&dev->od_ios_list))
2521 item = list_entry(dev->od_ios_list.next,
2522 struct osd_ios_item, oii_list);
2523 list_del_init(&item->oii_list);
2525 LASSERT(item->oii_scandir != NULL);
2526 scandir = item->oii_scandir;
2527 filldir = item->oii_filldir;
2528 dentry = item->oii_dentry;
2531 while (!list_empty(&dev->od_ios_list)) {
2532 item = list_entry(dev->od_ios_list.next,
2533 struct osd_ios_item, oii_list);
2534 list_del_init(&item->oii_list);
2535 dput(item->oii_dentry);
2542 /* There maybe the case that the object has been removed, but its OI
2543 * mapping is still in the OI file, such as the "CATALOGS" after MDT
2544 * file-level backup/restore. So here cleanup the stale OI mappings. */
2545 while (map->olm_name != NULL) {
2546 struct dentry *child;
2548 if (fid_is_zero(&map->olm_fid)) {
2553 child = osd_ios_lookup_one_len(map->olm_name,
2554 osd_sb(dev)->s_root,
2558 else if (PTR_ERR(child) == -ENOENT)
2559 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
2560 NULL, DTO_INDEX_DELETE,
2568 char *osd_lf_fid2name(const struct lu_fid *fid)
2570 const struct osd_lf_map *map = osd_lf_maps;
2572 while (map->olm_name != NULL) {
2573 if (!lu_fid_eq(fid, &map->olm_fid)) {
2578 if (map->olm_flags & OLF_SHOW_NAME)
2579 return map->olm_name;
2587 /* OI scrub start/stop */
2589 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
2591 struct osd_scrub *scrub = &dev->od_scrub;
2592 struct ptlrpc_thread *thread = &scrub->os_thread;
2593 struct l_wait_info lwi = { 0 };
2594 struct task_struct *task;
2598 if (dev->od_dt_dev.dd_rdonly)
2601 /* os_lock: sync status between stop and scrub thread */
2602 spin_lock(&scrub->os_lock);
2605 if (thread_is_running(thread)) {
2606 spin_unlock(&scrub->os_lock);
2607 if (!(scrub->os_file.sf_flags & SF_AUTO ||
2608 scrub->os_partial_scan) ||
2609 (flags & SS_AUTO_PARTIAL))
2612 osd_scrub_join(dev, flags, false);
2613 spin_lock(&scrub->os_lock);
2614 if (!thread_is_running(thread))
2617 spin_unlock(&scrub->os_lock);
2621 if (unlikely(thread_is_stopping(thread))) {
2622 spin_unlock(&scrub->os_lock);
2623 l_wait_event(thread->t_ctl_waitq,
2624 thread_is_stopped(thread),
2626 spin_lock(&scrub->os_lock);
2629 spin_unlock(&scrub->os_lock);
2631 if (scrub->os_file.sf_status == SS_COMPLETED) {
2632 if (!(flags & SS_SET_FAILOUT))
2633 flags |= SS_CLEAR_FAILOUT;
2635 if (!(flags & SS_SET_DRYRUN))
2636 flags |= SS_CLEAR_DRYRUN;
2641 scrub->os_start_flags = flags;
2642 thread_set_flags(thread, 0);
2643 task = kthread_run(osd_scrub_main, dev, "OI_scrub");
2646 CERROR("%s: cannot start iteration thread: rc = %d\n",
2647 osd_scrub2name(scrub), rc);
2651 l_wait_event(thread->t_ctl_waitq,
2652 thread_is_running(thread) || thread_is_stopped(thread),
2658 int osd_scrub_start(struct osd_device *dev, __u32 flags)
2663 /* od_otable_mutex: prevent curcurrent start/stop */
2664 mutex_lock(&dev->od_otable_mutex);
2665 rc = do_osd_scrub_start(dev, flags);
2666 mutex_unlock(&dev->od_otable_mutex);
2668 RETURN(rc == -EALREADY ? 0 : rc);
2671 static void do_osd_scrub_stop(struct osd_scrub *scrub)
2673 struct ptlrpc_thread *thread = &scrub->os_thread;
2674 struct l_wait_info lwi = { 0 };
2676 /* os_lock: sync status between stop and scrub thread */
2677 spin_lock(&scrub->os_lock);
2678 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
2679 thread_set_flags(thread, SVC_STOPPING);
2680 spin_unlock(&scrub->os_lock);
2681 wake_up_all(&thread->t_ctl_waitq);
2682 l_wait_event(thread->t_ctl_waitq,
2683 thread_is_stopped(thread),
2685 /* Do not skip the last lock/unlock, which can guarantee that
2686 * the caller cannot return until the OI scrub thread exit. */
2687 spin_lock(&scrub->os_lock);
2689 spin_unlock(&scrub->os_lock);
2692 static void osd_scrub_stop(struct osd_device *dev)
2694 /* od_otable_mutex: prevent curcurrent start/stop */
2695 mutex_lock(&dev->od_otable_mutex);
2696 dev->od_scrub.os_paused = 1;
2697 do_osd_scrub_stop(&dev->od_scrub);
2698 mutex_unlock(&dev->od_otable_mutex);
2701 /* OI scrub setup/cleanup */
2703 static const char osd_scrub_name[] = "OI_scrub";
2705 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2707 struct osd_thread_info *info = osd_oti_get(env);
2708 struct osd_scrub *scrub = &dev->od_scrub;
2709 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2710 struct scrub_file *sf = &scrub->os_file;
2711 struct super_block *sb = osd_sb(dev);
2712 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2713 struct lvfs_run_ctxt saved;
2715 struct inode *inode;
2716 struct lu_fid *fid = &info->oti_fid;
2718 bool restored = false;
2722 memset(scrub, 0, sizeof(*scrub));
2723 OBD_SET_CTXT_MAGIC(ctxt);
2724 ctxt->pwdmnt = dev->od_mnt;
2725 ctxt->pwd = dev->od_mnt->mnt_root;
2726 ctxt->fs = get_ds();
2728 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2729 init_rwsem(&scrub->os_rwsem);
2730 spin_lock_init(&scrub->os_lock);
2731 INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2733 push_ctxt(&saved, ctxt);
2734 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2736 pop_ctxt(&saved, ctxt);
2737 RETURN(PTR_ERR(filp));
2740 inode = file_inode(filp);
2741 /* 'What the @fid is' is not imporatant, because the object
2742 * has no OI mapping, and only is visible inside the OSD.*/
2743 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2744 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2746 filp_close(filp, NULL);
2747 pop_ctxt(&saved, ctxt);
2751 scrub->os_inode = igrab(inode);
2752 filp_close(filp, NULL);
2753 pop_ctxt(&saved, ctxt);
2755 rc = osd_scrub_file_load(scrub);
2756 if (rc == -ENOENT) {
2757 osd_scrub_file_init(scrub, es->s_uuid);
2758 /* If the "/O" dir does not exist when mount (indicated by
2759 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2760 * then it is quite probably that the device is a new one,
2761 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2763 * For the rare case that "/O" and "OI_scrub" both lost on
2764 * an old device, it can be found and cleared later.
2766 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2767 * need to check "filter_fid_old" and to convert it to
2768 * "filter_fid" for each object, and all the IGIF should
2769 * have their FID mapping in OI files already. */
2770 if (dev->od_maybe_new)
2771 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2773 } else if (rc != 0) {
2774 GOTO(cleanup_inode, rc);
2776 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2777 struct obd_uuid *old_uuid;
2778 struct obd_uuid *new_uuid;
2780 OBD_ALLOC_PTR(old_uuid);
2781 OBD_ALLOC_PTR(new_uuid);
2782 if (old_uuid == NULL || new_uuid == NULL) {
2783 CERROR("%s: UUID has been changed, but"
2784 "failed to allocate RAM for report\n",
2787 class_uuid_unparse(sf->sf_uuid, old_uuid);
2788 class_uuid_unparse(es->s_uuid, new_uuid);
2789 CERROR("%s: UUID has been changed from "
2790 "%s to %s\n", osd_dev2name(dev),
2791 old_uuid->uuid, new_uuid->uuid);
2793 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2796 if (old_uuid != NULL)
2797 OBD_FREE_PTR(old_uuid);
2798 if (new_uuid != NULL)
2799 OBD_FREE_PTR(new_uuid);
2800 } else if (sf->sf_status == SS_SCANNING) {
2801 sf->sf_status = SS_CRASHED;
2806 if (sf->sf_pos_last_checkpoint != 0)
2807 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2809 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2812 rc = osd_scrub_file_store(scrub);
2814 GOTO(cleanup_inode, rc);
2817 /* Initialize OI files. */
2818 rc = osd_oi_init(info, dev, restored);
2820 GOTO(cleanup_inode, rc);
2822 rc = osd_initial_OI_scrub(info, dev);
2824 GOTO(cleanup_oi, rc);
2826 if (sf->sf_flags & SF_UPGRADE ||
2827 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2828 sf->sf_success_count > 0)) {
2829 dev->od_igif_inoi = 0;
2830 dev->od_check_ff = dev->od_is_ost;
2832 dev->od_igif_inoi = 1;
2833 dev->od_check_ff = 0;
2836 if (sf->sf_flags & SF_INCONSISTENT)
2837 /* The 'od_igif_inoi' will be set under the
2839 * 1) new created system, or
2840 * 2) restored from file-level backup, or
2841 * 3) the upgrading completed.
2843 * The 'od_igif_inoi' may be cleared by OI scrub
2844 * later if found that the system is upgrading. */
2845 dev->od_igif_inoi = 1;
2847 if (!dev->od_dt_dev.dd_rdonly && !dev->od_noscrub &&
2848 ((sf->sf_status == SS_PAUSED) ||
2849 (sf->sf_status == SS_CRASHED &&
2850 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2851 SF_UPGRADE | SF_AUTO)) ||
2852 (sf->sf_status == SS_INIT &&
2853 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2855 rc = osd_scrub_start(dev, SS_AUTO_FULL);
2858 GOTO(cleanup_oi, rc);
2860 /* it is possible that dcache entries may keep objects after they are
2861 * deleted by OSD. While it looks safe this can cause object data to
2862 * stay until umount causing failures in tests calculating free space,
2863 * e.g. replay-ost-single. Since those dcache entries are not used
2864 * anymore let's just free them after use here */
2865 shrink_dcache_sb(sb);
2869 osd_oi_fini(info, dev);
2871 iput(scrub->os_inode);
2872 scrub->os_inode = NULL;
2877 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2879 struct osd_scrub *scrub = &dev->od_scrub;
2881 LASSERT(dev->od_otable_it == NULL);
2883 if (scrub->os_inode != NULL) {
2884 osd_scrub_stop(dev);
2885 iput(scrub->os_inode);
2886 scrub->os_inode = NULL;
2888 if (dev->od_oi_table != NULL)
2889 osd_oi_fini(osd_oti_get(env), dev);
2892 /* object table based iteration APIs */
2894 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2895 struct dt_object *dt, __u32 attr)
2897 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2898 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2899 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2900 struct osd_scrub *scrub = &dev->od_scrub;
2901 struct osd_otable_it *it;
2906 /* od_otable_mutex: prevent curcurrent init/fini */
2907 mutex_lock(&dev->od_otable_mutex);
2908 if (dev->od_otable_it != NULL)
2909 GOTO(out, it = ERR_PTR(-EALREADY));
2913 GOTO(out, it = ERR_PTR(-ENOMEM));
2915 dev->od_otable_it = it;
2917 it->ooi_cache.ooc_consumer_idx = -1;
2918 if (flags & DOIF_OUTUSED)
2919 it->ooi_used_outside = 1;
2921 if (flags & DOIF_RESET)
2924 if (valid & DOIV_ERROR_HANDLE) {
2925 if (flags & DOIF_FAILOUT)
2926 start |= SS_SET_FAILOUT;
2928 start |= SS_CLEAR_FAILOUT;
2931 if (valid & DOIV_DRYRUN) {
2932 if (flags & DOIF_DRYRUN)
2933 start |= SS_SET_DRYRUN;
2935 start |= SS_CLEAR_DRYRUN;
2938 rc = do_osd_scrub_start(dev, start & ~SS_AUTO_PARTIAL);
2939 if (rc < 0 && rc != -EALREADY) {
2940 dev->od_otable_it = NULL;
2942 GOTO(out, it = ERR_PTR(rc));
2945 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2950 mutex_unlock(&dev->od_otable_mutex);
2951 return (struct dt_it *)it;
2954 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2956 struct osd_otable_it *it = (struct osd_otable_it *)di;
2957 struct osd_device *dev = it->ooi_dev;
2959 /* od_otable_mutex: prevent curcurrent init/fini */
2960 mutex_lock(&dev->od_otable_mutex);
2961 do_osd_scrub_stop(&dev->od_scrub);
2962 LASSERT(dev->od_otable_it == it);
2964 dev->od_otable_it = NULL;
2965 mutex_unlock(&dev->od_otable_mutex);
2969 static int osd_otable_it_get(const struct lu_env *env,
2970 struct dt_it *di, const struct dt_key *key)
2975 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2980 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2982 spin_lock(&scrub->os_lock);
2983 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2984 scrub->os_waiting ||
2985 !thread_is_running(&scrub->os_thread))
2986 it->ooi_waiting = 0;
2988 it->ooi_waiting = 1;
2989 spin_unlock(&scrub->os_lock);
2991 return !it->ooi_waiting;
2994 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2996 struct osd_otable_it *it = (struct osd_otable_it *)di;
2997 struct osd_device *dev = it->ooi_dev;
2998 struct osd_scrub *scrub = &dev->od_scrub;
2999 struct osd_otable_cache *ooc = &it->ooi_cache;
3000 struct ptlrpc_thread *thread = &scrub->os_thread;
3001 struct l_wait_info lwi = { 0 };
3005 LASSERT(it->ooi_user_ready);
3008 if (!thread_is_running(thread) && !it->ooi_used_outside)
3011 if (ooc->ooc_cached_items > 0) {
3012 ooc->ooc_cached_items--;
3013 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
3014 ~OSD_OTABLE_IT_CACHE_MASK;
3018 if (it->ooi_all_cached) {
3019 l_wait_event(thread->t_ctl_waitq,
3020 !thread_is_running(thread),
3025 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
3026 spin_lock(&scrub->os_lock);
3027 scrub->os_waiting = 0;
3028 wake_up_all(&scrub->os_thread.t_ctl_waitq);
3029 spin_unlock(&scrub->os_lock);
3032 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
3033 l_wait_event(thread->t_ctl_waitq,
3034 osd_otable_it_wakeup(scrub, it),
3037 if (!thread_is_running(thread) && !it->ooi_used_outside)
3040 rc = osd_otable_it_preload(env, it);
3047 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
3048 const struct dt_it *di)
3053 static int osd_otable_it_key_size(const struct lu_env *env,
3054 const struct dt_it *di)
3056 return sizeof(__u64);
3059 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
3060 struct dt_rec *rec, __u32 attr)
3062 struct osd_otable_it *it = (struct osd_otable_it *)di;
3063 struct osd_otable_cache *ooc = &it->ooi_cache;
3065 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
3067 /* Filter out Invald FID already. */
3068 LASSERTF(fid_is_sane((struct lu_fid *)rec),
3069 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
3070 PFID((struct lu_fid *)rec),
3071 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
3076 static __u64 osd_otable_it_store(const struct lu_env *env,
3077 const struct dt_it *di)
3079 struct osd_otable_it *it = (struct osd_otable_it *)di;
3080 struct osd_otable_cache *ooc = &it->ooi_cache;
3083 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
3084 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
3086 hash = ooc->ooc_pos_preload;
3091 * Set the OSD layer iteration start position as the specified hash.
3093 static int osd_otable_it_load(const struct lu_env *env,
3094 const struct dt_it *di, __u64 hash)
3096 struct osd_otable_it *it = (struct osd_otable_it *)di;
3097 struct osd_device *dev = it->ooi_dev;
3098 struct osd_otable_cache *ooc = &it->ooi_cache;
3099 struct osd_scrub *scrub = &dev->od_scrub;
3100 struct osd_iit_param *param = &it->ooi_iit_param;
3104 /* Forbid to set iteration position after iteration started. */
3105 if (it->ooi_user_ready)
3108 LASSERT(!scrub->os_partial_scan);
3110 if (hash > OSD_OTABLE_MAX_HASH)
3111 hash = OSD_OTABLE_MAX_HASH;
3113 /* The hash is the last checkpoint position,
3114 * we will start from the next one. */
3115 ooc->ooc_pos_preload = hash + 1;
3116 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
3117 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
3119 it->ooi_user_ready = 1;
3120 if (!scrub->os_full_speed)
3121 wake_up_all(&scrub->os_thread.t_ctl_waitq);
3123 memset(param, 0, sizeof(*param));
3124 param->sb = osd_sb(dev);
3125 param->start = ooc->ooc_pos_preload;
3126 param->bg = (ooc->ooc_pos_preload - 1) /
3127 LDISKFS_INODES_PER_GROUP(param->sb);
3128 param->offset = (ooc->ooc_pos_preload - 1) %
3129 LDISKFS_INODES_PER_GROUP(param->sb);
3130 param->gbase = 1 + param->bg * LDISKFS_INODES_PER_GROUP(param->sb);
3132 /* Unplug OSD layer iteration by the first next() call. */
3133 rc = osd_otable_it_next(env, (struct dt_it *)it);
3138 static int osd_otable_it_key_rec(const struct lu_env *env,
3139 const struct dt_it *di, void *key_rec)
3144 const struct dt_index_operations osd_otable_ops = {
3146 .init = osd_otable_it_init,
3147 .fini = osd_otable_it_fini,
3148 .get = osd_otable_it_get,
3149 .put = osd_otable_it_put,
3150 .next = osd_otable_it_next,
3151 .key = osd_otable_it_key,
3152 .key_size = osd_otable_it_key_size,
3153 .rec = osd_otable_it_rec,
3154 .store = osd_otable_it_store,
3155 .load = osd_otable_it_load,
3156 .key_rec = osd_otable_it_key_rec,
3160 /* high priority inconsistent items list APIs */
3162 #define SCRUB_BAD_OIMAP_DECAY_INTERVAL 60
3164 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
3167 struct osd_inconsistent_item *oii;
3168 struct osd_scrub *scrub = &dev->od_scrub;
3169 struct ptlrpc_thread *thread = &scrub->os_thread;
3174 if (unlikely(oii == NULL))
3177 INIT_LIST_HEAD(&oii->oii_list);
3178 oii->oii_cache = *oic;
3179 oii->oii_insert = insert;
3181 if (scrub->os_partial_scan) {
3182 __u64 now = cfs_time_current_sec();
3184 /* If there haven't been errors in a long time,
3185 * decay old count until either the errors are
3186 * gone or we reach the current interval. */
3187 while (unlikely(scrub->os_bad_oimap_count > 0 &&
3188 scrub->os_bad_oimap_time +
3189 SCRUB_BAD_OIMAP_DECAY_INTERVAL < now)) {
3190 scrub->os_bad_oimap_count >>= 1;
3191 scrub->os_bad_oimap_time +=
3192 SCRUB_BAD_OIMAP_DECAY_INTERVAL;
3195 scrub->os_bad_oimap_time = now;
3196 if (++scrub->os_bad_oimap_count >
3197 dev->od_full_scrub_threshold_rate)
3198 scrub->os_full_scrub = 1;
3201 spin_lock(&scrub->os_lock);
3202 if (unlikely(!thread_is_running(thread))) {
3203 spin_unlock(&scrub->os_lock);
3208 if (list_empty(&scrub->os_inconsistent_items))
3210 list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
3211 spin_unlock(&scrub->os_lock);
3214 wake_up_all(&thread->t_ctl_waitq);
3219 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
3220 struct osd_inode_id *id)
3222 struct osd_scrub *scrub = &dev->od_scrub;
3223 struct osd_inconsistent_item *oii;
3226 spin_lock(&scrub->os_lock);
3227 list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
3228 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
3229 *id = oii->oii_cache.oic_lid;
3230 spin_unlock(&scrub->os_lock);
3234 spin_unlock(&scrub->os_lock);
3241 static const char *scrub_status_names[] = {
3252 static const char *scrub_flags_names[] = {
3260 static const char *scrub_param_names[] = {
3266 static void scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
3272 seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
3274 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
3277 seq_printf(m, "%s%c", names[i],
3278 bits != 0 ? ',' : '\n');
3283 static void scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
3286 seq_printf(m, "%s: %llu seconds\n", prefix,
3287 cfs_time_current_sec() - time);
3289 seq_printf(m, "%s: N/A\n", prefix);
3292 static void scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
3295 seq_printf(m, "%s: %llu\n", prefix, pos);
3297 seq_printf(m, "%s: N/A\n", prefix);
3300 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
3302 struct osd_scrub *scrub = &dev->od_scrub;
3303 struct scrub_file *sf = &scrub->os_file;
3307 down_read(&scrub->os_rwsem);
3308 seq_printf(m, "name: OI_scrub\n"
3312 sf->sf_magic, (int)sf->sf_oi_count,
3313 scrub_status_names[sf->sf_status]);
3315 scrub_bits_dump(m, sf->sf_flags, scrub_flags_names, "flags");
3317 scrub_bits_dump(m, sf->sf_param, scrub_param_names, "param");
3319 scrub_time_dump(m, sf->sf_time_last_complete,
3320 "time_since_last_completed");
3322 scrub_time_dump(m, sf->sf_time_latest_start,
3323 "time_since_latest_start");
3325 scrub_time_dump(m, sf->sf_time_last_checkpoint,
3326 "time_since_last_checkpoint");
3328 scrub_pos_dump(m, sf->sf_pos_latest_start,
3329 "latest_start_position");
3331 scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
3332 "last_checkpoint_position");
3334 scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
3335 "first_failure_position");
3337 checked = sf->sf_items_checked + scrub->os_new_checked;
3338 seq_printf(m, "checked: %llu\n"
3344 "success_count: %u\n",
3346 sf->sf_param & SP_DRYRUN ? "inconsistent" : "updated",
3347 sf->sf_items_updated, sf->sf_items_failed,
3348 sf->sf_param & SP_DRYRUN ? "inconsistent" : "updated",
3349 sf->sf_items_updated_prior, sf->sf_items_noscrub,
3350 sf->sf_items_igif, sf->sf_success_count);
3353 if (thread_is_running(&scrub->os_thread)) {
3354 cfs_duration_t duration = cfs_time_current() -
3355 scrub->os_time_last_checkpoint;
3356 __u64 new_checked = msecs_to_jiffies(scrub->os_new_checked *
3358 __u32 rtime = sf->sf_run_time +
3359 cfs_duration_sec(duration + HALF_SEC);
3362 do_div(new_checked, duration);
3364 do_div(speed, rtime);
3365 seq_printf(m, "run_time: %u seconds\n"
3366 "average_speed: %llu objects/sec\n"
3367 "real-time_speed: %llu objects/sec\n"
3368 "current_position: %u\n"
3369 "lf_scanned: %llu\n"
3371 "lf_failed: %llu\n",
3372 rtime, speed, new_checked, scrub->os_pos_current,
3373 scrub->os_lf_scanned,
3374 sf->sf_param & SP_DRYRUN ?
3375 "inconsistent" : "repaired",
3376 scrub->os_lf_repaired,
3377 scrub->os_lf_failed);
3378 seq_printf(m, "inodes_per_group: %lu\n"
3379 "current_iit_group: %u\n"
3380 "current_iit_base: %u\n"
3381 "current_iit_offset: %u\n"
3382 "scrub_in_prior: %s\n"
3383 "scrub_full_speed: %s\n"
3384 "partial_scan: %s\n",
3385 LDISKFS_INODES_PER_GROUP(osd_sb(dev)),
3386 scrub->os_iit_param.bg,
3387 scrub->os_iit_param.gbase,
3388 scrub->os_iit_param.offset,
3389 scrub->os_in_prior ? "yes" : "no",
3390 scrub->os_full_speed ? "yes" : "no",
3391 scrub->os_partial_scan ? "yes" : "no");
3393 if (sf->sf_run_time != 0)
3394 do_div(speed, sf->sf_run_time);
3395 seq_printf(m, "run_time: %u seconds\n"
3396 "average_speed: %llu objects/sec\n"
3397 "real-time_speed: N/A\n"
3398 "current_position: N/A\n"
3399 "lf_scanned: %llu\n"
3401 "lf_failed: %llu\n",
3402 sf->sf_run_time, speed, scrub->os_lf_scanned,
3403 sf->sf_param & SP_DRYRUN ?
3404 "inconsistent" : "repaired",
3405 scrub->os_lf_repaired, scrub->os_lf_failed);
3408 up_read(&scrub->os_rwsem);