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 LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name;
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, "%.16s: 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, "%.16s: 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, "%.16s: 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, "%.16s: 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, "%.16s: 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 = inode->i_op->removexattr(dentry, 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, "%.16s: 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, "%.16s: 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 struct osd_iit_param {
812 struct super_block *sb;
813 struct buffer_head *bitmap;
820 typedef int (*osd_iit_next_policy)(struct osd_thread_info *info,
821 struct osd_device *dev,
822 struct osd_iit_param *param,
823 struct osd_idmap_cache **oic,
826 typedef int (*osd_iit_exec_policy)(struct osd_thread_info *info,
827 struct osd_device *dev,
828 struct osd_iit_param *param,
829 struct osd_idmap_cache *oic,
830 bool *noslot, int rc);
832 static int osd_iit_next(struct osd_iit_param *param, __u32 *pos)
837 param->offset = ldiskfs_find_next_bit(param->bitmap->b_data,
838 LDISKFS_INODES_PER_GROUP(param->sb), param->offset);
839 if (param->offset >= LDISKFS_INODES_PER_GROUP(param->sb)) {
840 *pos = 1 + (param->bg+1) * LDISKFS_INODES_PER_GROUP(param->sb);
841 return SCRUB_NEXT_BREAK;
844 offset = param->offset++;
845 if (unlikely(*pos == param->gbase + offset && *pos != param->start)) {
846 /* We should NOT find the same object more than once. */
847 CERROR("%s: scan the same object multiple times at the pos: "
848 "group = %u, base = %u, offset = %u, start = %u\n",
849 param->sb->s_id, (__u32)param->bg, param->gbase,
850 offset, param->start);
854 *pos = param->gbase + offset;
859 * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST
860 * \retval 0: FID-on-MDT
862 static int osd_scrub_check_local_fldb(struct osd_thread_info *info,
863 struct osd_device *dev,
866 /* XXX: The initial OI scrub will scan the top level /O to generate
867 * a small local FLDB according to the <seq>. If the given FID
868 * is in the local FLDB, then it is FID-on-OST; otherwise it's
869 * quite possible for FID-on-MDT. */
871 return SCRUB_NEXT_OSTOBJ_OLD;
876 static int osd_scrub_get_fid(struct osd_thread_info *info,
877 struct osd_device *dev, struct inode *inode,
878 struct lu_fid *fid, bool scrub)
880 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
882 bool has_lma = false;
884 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
885 &info->oti_ost_attrs);
888 if (lma->lma_compat & LMAC_NOT_IN_OI ||
889 lma->lma_incompat & LMAI_AGENT)
890 return SCRUB_NEXT_CONTINUE;
892 *fid = lma->lma_self_fid;
896 if (lma->lma_compat & LMAC_FID_ON_OST)
897 return SCRUB_NEXT_OSTOBJ;
899 if (fid_is_idif(fid))
900 return SCRUB_NEXT_OSTOBJ_OLD;
902 /* For local object. */
903 if (fid_is_internal(fid))
906 /* For external visible MDT-object with non-normal FID. */
907 if (fid_is_namespace_visible(fid) && !fid_is_norm(fid))
910 /* For the object with normal FID, it may be MDT-object,
911 * or may be 2.4 OST-object, need further distinguish.
912 * Fall through to next section. */
915 if (rc == -ENODATA || rc == 0) {
916 rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid);
919 /* It is old 2.x (x <= 3) or 1.8 OST-object. */
920 rc = SCRUB_NEXT_OSTOBJ_OLD;
926 /* It is FID-on-OST, but we do not know how
927 * to generate its FID, ignore it directly. */
928 rc = SCRUB_NEXT_CONTINUE;
930 /* It is 2.4 OST-object. */
931 rc = SCRUB_NEXT_OSTOBJ_OLD;
939 if (dev->od_scrub.os_convert_igif) {
940 lu_igif_build(fid, inode->i_ino,
941 inode->i_generation);
943 rc = SCRUB_NEXT_NOLMA;
947 /* It may be FID-on-OST, or may be FID for
948 * non-MDT0, anyway, we do not know how to
949 * generate its FID, ignore it directly. */
950 rc = SCRUB_NEXT_CONTINUE;
955 /* For OI scrub case only: the object has LMA but has no ff
956 * (or ff crashed). It may be MDT-object, may be OST-object
957 * with crashed ff. The last check is local FLDB. */
958 rc = osd_scrub_check_local_fldb(info, dev, fid);
964 static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
965 struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
966 struct super_block *sb, bool scrub)
972 /* Not handle the backend root object and agent parent object.
973 * They are neither visible to namespace nor have OI mappings. */
974 if (unlikely(pos == osd_sb(dev)->s_root->d_inode->i_ino ||
975 pos == osd_remote_parent_ino(dev)))
976 RETURN(SCRUB_NEXT_CONTINUE);
978 osd_id_gen(lid, pos, OSD_OII_NOGEN);
979 inode = osd_iget(info, dev, lid);
982 /* The inode may be removed after bitmap searching, or the
983 * file is new created without inode initialized yet. */
984 if (rc == -ENOENT || rc == -ESTALE)
985 RETURN(SCRUB_NEXT_CONTINUE);
987 CDEBUG(D_LFSCK, "%.16s: fail to read inode, ino# = %u: "
988 "rc = %d\n", LDISKFS_SB(sb)->s_es->s_volume_name,
993 /* It is an EA inode, no OI mapping for it, skip it. */
994 if (osd_is_ea_inode(inode))
995 GOTO(put, rc = SCRUB_NEXT_CONTINUE);
998 ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
999 /* Only skip it for the first OI scrub accessing. */
1000 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
1001 GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
1004 rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
1013 static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
1014 struct osd_iit_param *param,
1015 struct osd_idmap_cache **oic, const bool noslot)
1017 struct osd_scrub *scrub = &dev->od_scrub;
1018 struct ptlrpc_thread *thread = &scrub->os_thread;
1020 struct osd_inode_id *lid;
1023 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
1024 struct l_wait_info lwi;
1026 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
1027 if (likely(lwi.lwi_timeout > 0))
1028 l_wait_event(thread->t_ctl_waitq,
1029 !list_empty(&scrub->os_inconsistent_items) ||
1030 !thread_is_running(thread),
1034 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
1035 spin_lock(&scrub->os_lock);
1036 thread_set_flags(thread, SVC_STOPPING);
1037 spin_unlock(&scrub->os_lock);
1038 return SCRUB_NEXT_CRASH;
1041 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
1042 return SCRUB_NEXT_FATAL;
1044 if (unlikely(!thread_is_running(thread)))
1045 return SCRUB_NEXT_EXIT;
1047 if (!list_empty(&scrub->os_inconsistent_items)) {
1048 spin_lock(&scrub->os_lock);
1049 if (likely(!list_empty(&scrub->os_inconsistent_items))) {
1050 struct osd_inconsistent_item *oii;
1052 oii = list_entry(scrub->os_inconsistent_items.next,
1053 struct osd_inconsistent_item, oii_list);
1054 spin_unlock(&scrub->os_lock);
1056 *oic = &oii->oii_cache;
1057 scrub->os_in_prior = 1;
1061 spin_unlock(&scrub->os_lock);
1065 return SCRUB_NEXT_WAIT;
1067 rc = osd_iit_next(param, &scrub->os_pos_current);
1071 *oic = &scrub->os_oic;
1072 fid = &(*oic)->oic_fid;
1073 lid = &(*oic)->oic_lid;
1074 rc = osd_iit_iget(info, dev, fid, lid,
1075 scrub->os_pos_current, param->sb, true);
1079 static int osd_preload_next(struct osd_thread_info *info,
1080 struct osd_device *dev, struct osd_iit_param *param,
1081 struct osd_idmap_cache **oic, const bool noslot)
1083 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1084 struct osd_scrub *scrub;
1085 struct ptlrpc_thread *thread;
1088 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1092 scrub = &dev->od_scrub;
1093 thread = &scrub->os_thread;
1094 if (thread_is_running(thread) &&
1095 ooc->ooc_pos_preload >= scrub->os_pos_current)
1096 return SCRUB_NEXT_EXIT;
1098 rc = osd_iit_iget(info, dev,
1099 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1100 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1101 ooc->ooc_pos_preload, param->sb, false);
1106 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1108 spin_lock(&scrub->os_lock);
1109 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1110 !list_empty(&scrub->os_inconsistent_items) ||
1111 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1112 scrub->os_waiting = 0;
1114 scrub->os_waiting = 1;
1115 spin_unlock(&scrub->os_lock);
1117 return !scrub->os_waiting;
1120 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1121 struct osd_iit_param *param,
1122 struct osd_idmap_cache *oic, bool *noslot, int rc)
1124 struct l_wait_info lwi = { 0 };
1125 struct osd_scrub *scrub = &dev->od_scrub;
1126 struct scrub_file *sf = &scrub->os_file;
1127 struct ptlrpc_thread *thread = &scrub->os_thread;
1128 struct osd_otable_it *it = dev->od_otable_it;
1129 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1132 case SCRUB_NEXT_NOSCRUB:
1133 down_write(&scrub->os_rwsem);
1134 scrub->os_new_checked++;
1135 sf->sf_items_noscrub++;
1136 up_write(&scrub->os_rwsem);
1137 case SCRUB_NEXT_CONTINUE:
1138 case SCRUB_NEXT_WAIT:
1142 rc = osd_scrub_check_update(info, dev, oic, rc);
1144 scrub->os_in_prior = 0;
1148 rc = osd_scrub_checkpoint(scrub);
1150 CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: "
1151 "rc = %d\n", osd_scrub2name(scrub),
1152 scrub->os_pos_current, rc);
1153 /* Continue, as long as the scrub itself can go ahead. */
1156 if (scrub->os_in_prior) {
1157 scrub->os_in_prior = 0;
1162 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1163 ooc->ooc_pos_preload < scrub->os_pos_current) {
1164 spin_lock(&scrub->os_lock);
1165 it->ooi_waiting = 0;
1166 wake_up_all(&thread->t_ctl_waitq);
1167 spin_unlock(&scrub->os_lock);
1170 if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
1173 if (!ooc || osd_scrub_has_window(scrub, ooc)) {
1179 l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
1182 if (!ooc || osd_scrub_has_window(scrub, ooc))
1189 static int osd_preload_exec(struct osd_thread_info *info,
1190 struct osd_device *dev, struct osd_iit_param *param,
1191 struct osd_idmap_cache *oic, bool *noslot, int rc)
1193 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1196 ooc->ooc_cached_items++;
1197 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1198 ~OSD_OTABLE_IT_CACHE_MASK;
1200 return rc > 0 ? 0 : rc;
1203 #define SCRUB_IT_ALL 1
1204 #define SCRUB_IT_CRASH 2
1206 static void osd_scrub_join(struct osd_device *dev, __u32 flags,
1209 struct osd_scrub *scrub = &dev->od_scrub;
1210 struct ptlrpc_thread *thread = &scrub->os_thread;
1211 struct scrub_file *sf = &scrub->os_file;
1215 LASSERT(!(flags & SS_AUTO_PARTIAL));
1217 down_write(&scrub->os_rwsem);
1218 scrub->os_in_join = 1;
1219 if (flags & SS_SET_FAILOUT)
1220 sf->sf_param |= SP_FAILOUT;
1221 else if (flags & SS_CLEAR_FAILOUT)
1222 sf->sf_param &= ~SP_FAILOUT;
1224 if (flags & SS_SET_DRYRUN)
1225 sf->sf_param |= SP_DRYRUN;
1226 else if (flags & SS_CLEAR_DRYRUN)
1227 sf->sf_param &= ~SP_DRYRUN;
1229 if (flags & SS_RESET) {
1230 osd_scrub_file_reset(scrub,
1231 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1232 inconsistent ? SF_INCONSISTENT : 0);
1233 sf->sf_status = SS_SCANNING;
1236 if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
1237 scrub->os_full_speed = 1;
1239 scrub->os_full_speed = 0;
1241 if (flags & SS_AUTO_FULL) {
1242 sf->sf_flags |= SF_AUTO;
1243 scrub->os_full_speed = 1;
1246 scrub->os_new_checked = 0;
1247 if (sf->sf_pos_last_checkpoint != 0)
1248 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
1250 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
1252 scrub->os_pos_current = sf->sf_pos_latest_start;
1253 sf->sf_time_latest_start = cfs_time_current_sec();
1254 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
1255 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
1256 rc = osd_scrub_file_store(scrub);
1258 CDEBUG(D_LFSCK, "%.16s: fail to store scrub file when join "
1259 "the OI scrub: rc = %d\n", osd_scrub2name(scrub), rc);
1261 spin_lock(&scrub->os_lock);
1262 scrub->os_waiting = 0;
1263 scrub->os_paused = 0;
1264 scrub->os_partial_scan = 0;
1265 scrub->os_in_join = 0;
1266 scrub->os_full_scrub = 0;
1267 spin_unlock(&scrub->os_lock);
1268 wake_up_all(&thread->t_ctl_waitq);
1269 up_write(&scrub->os_rwsem);
1274 static int osd_inode_iteration(struct osd_thread_info *info,
1275 struct osd_device *dev, __u32 max, bool preload)
1277 struct osd_scrub *scrub = &dev->od_scrub;
1278 struct ptlrpc_thread *thread = &scrub->os_thread;
1279 struct scrub_file *sf = &scrub->os_file;
1280 osd_iit_next_policy next;
1281 osd_iit_exec_policy exec;
1284 struct osd_iit_param param = { NULL };
1285 struct l_wait_info lwi = { 0 };
1291 param.sb = osd_sb(dev);
1295 while (scrub->os_partial_scan && !scrub->os_in_join) {
1296 struct osd_idmap_cache *oic = NULL;
1298 rc = osd_scrub_next(info, dev, ¶m, &oic, noslot);
1300 case SCRUB_NEXT_EXIT:
1302 case SCRUB_NEXT_CRASH:
1303 RETURN(SCRUB_IT_CRASH);
1304 case SCRUB_NEXT_FATAL:
1306 case SCRUB_NEXT_WAIT: {
1307 struct kstatfs *ksfs = &info->oti_ksfs;
1310 if (dev->od_full_scrub_ratio == OFSR_NEVER ||
1311 unlikely(sf->sf_items_updated_prior == 0))
1314 if (dev->od_full_scrub_ratio == OFSR_DIRECTLY ||
1315 scrub->os_full_scrub) {
1316 osd_scrub_join(dev, SS_AUTO_FULL | SS_RESET,
1321 rc = param.sb->s_op->statfs(param.sb->s_root, ksfs);
1323 __u64 used = ksfs->f_files - ksfs->f_ffree;
1325 do_div(used, sf->sf_items_updated_prior);
1326 /* If we hit too much inconsistent OI
1327 * mappings during the partial scan,
1328 * then scan the device completely. */
1329 if (used < dev->od_full_scrub_ratio) {
1331 SS_AUTO_FULL | SS_RESET, true);
1337 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) &&
1341 saved_flags = sf->sf_flags;
1342 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
1343 SF_UPGRADE | SF_AUTO);
1344 sf->sf_status = SS_COMPLETED;
1345 l_wait_event(thread->t_ctl_waitq,
1346 !thread_is_running(thread) ||
1347 !scrub->os_partial_scan ||
1348 scrub->os_in_join ||
1349 !list_empty(&scrub->os_inconsistent_items),
1351 sf->sf_flags = saved_flags;
1352 sf->sf_status = SS_SCANNING;
1354 if (unlikely(!thread_is_running(thread)))
1357 if (!scrub->os_partial_scan || scrub->os_in_join)
1363 LASSERTF(rc == 0, "rc = %d\n", rc);
1365 osd_scrub_exec(info, dev, ¶m, oic, &noslot, rc);
1372 l_wait_event(thread->t_ctl_waitq,
1373 !thread_is_running(thread) || !scrub->os_in_join,
1376 if (unlikely(!thread_is_running(thread)))
1382 next = osd_scrub_next;
1383 exec = osd_scrub_exec;
1384 pos = &scrub->os_pos_current;
1385 count = &scrub->os_new_checked;
1387 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1389 next = osd_preload_next;
1390 exec = osd_preload_exec;
1391 pos = &ooc->ooc_pos_preload;
1392 count = &ooc->ooc_cached_items;
1397 param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
1398 param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
1399 param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1400 limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
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("%.16s: 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, ¶m, &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, ¶m, oic, &noslot, rc);
1450 } while (!rc && *pos <= limit && *count < max);
1454 brelse(param.bitmap);
1455 param.bitmap = NULL;
1465 param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1472 RETURN(SCRUB_IT_ALL);
1475 /* For preload case, increase the iteration cursor,
1476 * then we will not scan the last object repeatedly. */
1478 dev->od_otable_it->ooi_cache.ooc_pos_preload++;
1483 static int osd_otable_it_preload(const struct lu_env *env,
1484 struct osd_otable_it *it)
1486 struct osd_device *dev = it->ooi_dev;
1487 struct osd_scrub *scrub = &dev->od_scrub;
1488 struct osd_otable_cache *ooc = &it->ooi_cache;
1492 rc = osd_inode_iteration(osd_oti_get(env), dev,
1493 OSD_OTABLE_IT_CACHE_SIZE, true);
1494 if (rc == SCRUB_IT_ALL)
1495 it->ooi_all_cached = 1;
1497 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1498 spin_lock(&scrub->os_lock);
1499 scrub->os_waiting = 0;
1500 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1501 spin_unlock(&scrub->os_lock);
1504 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1507 static int osd_scrub_main(void *args)
1510 struct osd_device *dev = (struct osd_device *)args;
1511 struct osd_scrub *scrub = &dev->od_scrub;
1512 struct ptlrpc_thread *thread = &scrub->os_thread;
1516 rc = lu_env_init(&env, LCT_LOCAL);
1518 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n",
1519 osd_scrub2name(scrub), rc);
1523 rc = osd_scrub_prep(dev);
1525 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n",
1526 osd_scrub2name(scrub), rc);
1530 if (!scrub->os_full_speed && !scrub->os_partial_scan) {
1531 struct l_wait_info lwi = { 0 };
1532 struct osd_otable_it *it = dev->od_otable_it;
1533 struct osd_otable_cache *ooc = &it->ooi_cache;
1535 l_wait_event(thread->t_ctl_waitq,
1536 it->ooi_user_ready || !thread_is_running(thread),
1538 if (unlikely(!thread_is_running(thread)))
1541 scrub->os_pos_current = ooc->ooc_pos_preload;
1544 CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n",
1545 osd_scrub2name(scrub), scrub->os_start_flags,
1546 scrub->os_pos_current);
1548 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1549 if (unlikely(rc == SCRUB_IT_CRASH))
1550 GOTO(out, rc = -EINVAL);
1554 rc = osd_scrub_post(scrub, rc);
1555 CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n",
1556 osd_scrub2name(scrub), scrub->os_pos_current, rc);
1559 while (!list_empty(&scrub->os_inconsistent_items)) {
1560 struct osd_inconsistent_item *oii;
1562 oii = list_entry(scrub->os_inconsistent_items.next,
1563 struct osd_inconsistent_item, oii_list);
1564 list_del_init(&oii->oii_list);
1570 spin_lock(&scrub->os_lock);
1571 thread_set_flags(thread, SVC_STOPPED);
1572 wake_up_all(&thread->t_ctl_waitq);
1573 spin_unlock(&scrub->os_lock);
1577 /* initial OI scrub */
1579 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1580 struct dentry *, filldir_t filldir);
1582 #ifdef HAVE_FILLDIR_USE_CTX
1583 static int osd_ios_varfid_fill(struct dir_context *buf, const char *name,
1584 int namelen, loff_t offset, __u64 ino,
1586 static int osd_ios_lf_fill(struct dir_context *buf, const char *name,
1587 int namelen, loff_t offset, __u64 ino,
1589 static int osd_ios_dl_fill(struct dir_context *buf, const char *name,
1590 int namelen, loff_t offset, __u64 ino,
1592 static int osd_ios_uld_fill(struct dir_context *buf, const char *name,
1593 int namelen, loff_t offset, __u64 ino,
1596 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1597 loff_t offset, __u64 ino, unsigned d_type);
1598 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1599 loff_t offset, __u64 ino, unsigned d_type);
1600 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1601 loff_t offset, __u64 ino, unsigned d_type);
1602 static int osd_ios_uld_fill(void *buf, const char *name, int namelen,
1603 loff_t offset, __u64 ino, unsigned d_type);
1607 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1608 struct dentry *dentry, filldir_t filldir);
1610 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1611 struct dentry *dentry, filldir_t filldir);
1614 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1615 struct dentry *dentry, filldir_t filldir);
1618 OLF_SCAN_SUBITEMS = 0x0001,
1619 OLF_HIDE_FID = 0x0002,
1620 OLF_SHOW_NAME = 0x0004,
1622 OLF_IDX_IN_FID = 0x0010,
1627 struct lu_fid olm_fid;
1630 scandir_t olm_scandir;
1631 filldir_t olm_filldir;
1634 /* Add the new introduced local files in the list in the future. */
1635 static const struct osd_lf_map osd_lf_maps[] = {
1638 .olm_name = CATLIST,
1640 .f_seq = FID_SEQ_LOCAL_FILE,
1641 .f_oid = LLOG_CATALOGS_OID,
1643 .olm_flags = OLF_SHOW_NAME,
1644 .olm_namelen = sizeof(CATLIST) - 1,
1649 .olm_name = MOUNT_CONFIGS_DIR,
1651 .f_seq = FID_SEQ_LOCAL_FILE,
1652 .f_oid = MGS_CONFIGS_OID,
1654 .olm_flags = OLF_SCAN_SUBITEMS,
1655 .olm_namelen = sizeof(MOUNT_CONFIGS_DIR) - 1,
1656 .olm_scandir = osd_ios_general_scan,
1657 .olm_filldir = osd_ios_varfid_fill,
1660 /* NIDTBL_VERSIONS */
1662 .olm_name = MGS_NIDTBL_DIR,
1663 .olm_flags = OLF_SCAN_SUBITEMS,
1664 .olm_namelen = sizeof(MGS_NIDTBL_DIR) - 1,
1665 .olm_scandir = osd_ios_general_scan,
1666 .olm_filldir = osd_ios_varfid_fill,
1671 .olm_name = "PENDING",
1672 .olm_namelen = sizeof("PENDING") - 1,
1679 .f_seq = FID_SEQ_ROOT,
1680 .f_oid = FID_OID_ROOT,
1682 .olm_flags = OLF_SCAN_SUBITEMS | OLF_HIDE_FID,
1683 .olm_namelen = sizeof("ROOT") - 1,
1684 .olm_scandir = osd_ios_ROOT_scan,
1687 /* changelog_catalog */
1689 .olm_name = CHANGELOG_CATALOG,
1690 .olm_namelen = sizeof(CHANGELOG_CATALOG) - 1,
1693 /* changelog_users */
1695 .olm_name = CHANGELOG_USERS,
1696 .olm_namelen = sizeof(CHANGELOG_USERS) - 1,
1703 .f_seq = FID_SEQ_LOCAL_FILE,
1704 .f_oid = FLD_INDEX_OID,
1706 .olm_flags = OLF_SHOW_NAME,
1707 .olm_namelen = sizeof("fld") - 1,
1712 .olm_name = LAST_RCVD,
1714 .f_seq = FID_SEQ_LOCAL_FILE,
1715 .f_oid = LAST_RECV_OID,
1717 .olm_flags = OLF_SHOW_NAME,
1718 .olm_namelen = sizeof(LAST_RCVD) - 1,
1723 .olm_name = REPLY_DATA,
1725 .f_seq = FID_SEQ_LOCAL_FILE,
1726 .f_oid = REPLY_DATA_OID,
1728 .olm_flags = OLF_SHOW_NAME,
1729 .olm_namelen = sizeof(REPLY_DATA) - 1,
1734 .olm_name = LOV_OBJID,
1736 .f_seq = FID_SEQ_LOCAL_FILE,
1737 .f_oid = MDD_LOV_OBJ_OID,
1739 .olm_flags = OLF_SHOW_NAME,
1740 .olm_namelen = sizeof(LOV_OBJID) - 1,
1745 .olm_name = LOV_OBJSEQ,
1747 .f_seq = FID_SEQ_LOCAL_FILE,
1748 .f_oid = MDD_LOV_OBJ_OSEQ,
1750 .olm_flags = OLF_SHOW_NAME,
1751 .olm_namelen = sizeof(LOV_OBJSEQ) - 1,
1756 .olm_name = QMT_DIR,
1757 .olm_flags = OLF_SCAN_SUBITEMS,
1758 .olm_namelen = sizeof(QMT_DIR) - 1,
1759 .olm_scandir = osd_ios_general_scan,
1760 .olm_filldir = osd_ios_varfid_fill,
1765 .olm_name = QSD_DIR,
1766 .olm_flags = OLF_SCAN_SUBITEMS,
1767 .olm_namelen = sizeof(QSD_DIR) - 1,
1768 .olm_scandir = osd_ios_general_scan,
1769 .olm_filldir = osd_ios_varfid_fill,
1774 .olm_name = "seq_ctl",
1776 .f_seq = FID_SEQ_LOCAL_FILE,
1777 .f_oid = FID_SEQ_CTL_OID,
1779 .olm_flags = OLF_SHOW_NAME,
1780 .olm_namelen = sizeof("seq_ctl") - 1,
1785 .olm_name = "seq_srv",
1787 .f_seq = FID_SEQ_LOCAL_FILE,
1788 .f_oid = FID_SEQ_SRV_OID,
1790 .olm_flags = OLF_SHOW_NAME,
1791 .olm_namelen = sizeof("seq_srv") - 1,
1796 .olm_name = HEALTH_CHECK,
1798 .f_seq = FID_SEQ_LOCAL_FILE,
1799 .f_oid = OFD_HEALTH_CHECK_OID,
1801 .olm_flags = OLF_SHOW_NAME,
1802 .olm_namelen = sizeof(HEALTH_CHECK) - 1,
1807 .olm_name = LFSCK_DIR,
1808 .olm_namelen = sizeof(LFSCK_DIR) - 1,
1809 .olm_scandir = osd_ios_general_scan,
1810 .olm_filldir = osd_ios_varfid_fill,
1813 /* lfsck_bookmark */
1815 .olm_name = LFSCK_BOOKMARK,
1816 .olm_namelen = sizeof(LFSCK_BOOKMARK) - 1,
1821 .olm_name = LFSCK_LAYOUT,
1822 .olm_namelen = sizeof(LFSCK_LAYOUT) - 1,
1825 /* lfsck_namespace */
1827 .olm_name = LFSCK_NAMESPACE,
1828 .olm_namelen = sizeof(LFSCK_NAMESPACE) - 1,
1831 /* OBJECTS, upgrade from old device */
1833 .olm_name = OBJECTS,
1834 .olm_flags = OLF_SCAN_SUBITEMS,
1835 .olm_namelen = sizeof(OBJECTS) - 1,
1836 .olm_scandir = osd_ios_OBJECTS_scan,
1839 /* lquota_v2.user, upgrade from old device */
1841 .olm_name = "lquota_v2.user",
1842 .olm_namelen = sizeof("lquota_v2.user") - 1,
1845 /* lquota_v2.group, upgrade from old device */
1847 .olm_name = "lquota_v2.group",
1848 .olm_namelen = sizeof("lquota_v2.group") - 1,
1851 /* LAST_GROUP, upgrade from old device */
1853 .olm_name = "LAST_GROUP",
1855 .f_seq = FID_SEQ_LOCAL_FILE,
1856 .f_oid = OFD_LAST_GROUP_OID,
1858 .olm_flags = OLF_SHOW_NAME,
1859 .olm_namelen = sizeof("LAST_GROUP") - 1,
1862 /* committed batchid for cross-MDT operation */
1864 .olm_name = "BATCHID",
1866 .f_seq = FID_SEQ_LOCAL_FILE,
1867 .f_oid = BATCHID_COMMITTED_OID,
1869 .olm_flags = OLF_SHOW_NAME,
1870 .olm_namelen = sizeof("BATCHID") - 1,
1873 /* OSP update logs update_log{_dir} use f_seq = FID_SEQ_UPDATE_LOG{_DIR}
1874 * and f_oid = index for their log files. See lu_update_log{_dir}_fid()
1875 * for more details. */
1879 .olm_name = "update_log",
1881 .f_seq = FID_SEQ_UPDATE_LOG,
1883 .olm_flags = OLF_SHOW_NAME | OLF_IDX_IN_FID,
1884 .olm_namelen = sizeof("update_log") - 1,
1887 /* update_log_dir */
1889 .olm_name = "update_log_dir",
1891 .f_seq = FID_SEQ_UPDATE_LOG_DIR,
1893 .olm_flags = OLF_SHOW_NAME | OLF_SCAN_SUBITEMS |
1895 .olm_namelen = sizeof("update_log_dir") - 1,
1896 .olm_scandir = osd_ios_general_scan,
1897 .olm_filldir = osd_ios_uld_fill,
1902 .olm_name = "lost+found",
1904 .f_seq = FID_SEQ_LOCAL_FILE,
1905 .f_oid = OSD_LPF_OID,
1907 .olm_flags = OLF_SCAN_SUBITEMS,
1908 .olm_namelen = sizeof("lost+found") - 1,
1909 .olm_scandir = osd_ios_general_scan,
1910 .olm_filldir = osd_ios_lf_fill,
1918 /* Add the new introduced files under .lustre/ in the list in the future. */
1919 static const struct osd_lf_map osd_dl_maps[] = {
1924 .f_seq = FID_SEQ_DOT_LUSTRE,
1925 .f_oid = FID_OID_DOT_LUSTRE_OBF,
1927 .olm_namelen = sizeof("fid") - 1,
1929 /* .lustre/lost+found */
1931 .olm_name = "lost+found",
1933 .f_seq = FID_SEQ_DOT_LUSTRE,
1934 .f_oid = FID_OID_DOT_LUSTRE_LPF,
1936 .olm_namelen = sizeof("lost+found") - 1,
1943 struct osd_ios_item {
1944 struct list_head oii_list;
1945 struct dentry *oii_dentry;
1946 scandir_t oii_scandir;
1947 filldir_t oii_filldir;
1950 struct osd_ios_filldir_buf {
1951 #ifdef HAVE_DIR_CONTEXT
1952 /* please keep it as first member */
1953 struct dir_context ctx;
1955 struct osd_thread_info *oifb_info;
1956 struct osd_device *oifb_dev;
1957 struct dentry *oifb_dentry;
1960 static inline struct dentry *
1961 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1963 struct dentry *dentry;
1965 dentry = ll_lookup_one_len(name, parent, namelen);
1966 if (IS_ERR(dentry)) {
1967 int rc = PTR_ERR(dentry);
1970 CERROR("Fail to find %.*s in %.*s (%lu/%u): rc = %d\n",
1971 namelen, name, parent->d_name.len,
1972 parent->d_name.name, parent->d_inode->i_ino,
1973 parent->d_inode->i_generation, rc);
1978 if (dentry->d_inode == NULL) {
1980 return ERR_PTR(-ENOENT);
1987 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1988 scandir_t scandir, filldir_t filldir)
1990 struct osd_ios_item *item;
1993 OBD_ALLOC_PTR(item);
1997 INIT_LIST_HEAD(&item->oii_list);
1998 item->oii_dentry = dget(dentry);
1999 item->oii_scandir = scandir;
2000 item->oii_filldir = filldir;
2001 list_add_tail(&item->oii_list, &dev->od_ios_list);
2007 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
2009 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
2010 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
2011 * reference the inode, or fixed if it is missing or references another inode.
2014 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
2015 struct inode *inode, const struct lu_fid *fid, int flags)
2017 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
2018 struct osd_inode_id *id = &info->oti_id;
2019 struct osd_inode_id *id2 = &info->oti_id2;
2020 struct osd_scrub *scrub = &dev->od_scrub;
2021 struct scrub_file *sf = &scrub->os_file;
2026 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
2027 &info->oti_ost_attrs);
2028 if (rc != 0 && rc != -ENODATA) {
2029 CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
2030 "rc = %d\n", osd_name(dev), rc);
2035 osd_id_gen(id, inode->i_ino, inode->i_generation);
2036 if (rc == -ENODATA) {
2037 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID) {
2038 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
2041 if (flags & OLF_IDX_IN_FID) {
2042 LASSERT(dev->od_index >= 0);
2044 tfid.f_oid = dev->od_index;
2047 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
2049 CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
2050 "scrub: rc = %d\n", osd_name(dev), rc);
2055 if (lma->lma_compat & LMAC_NOT_IN_OI)
2058 tfid = lma->lma_self_fid;
2061 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
2066 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
2067 DTO_INDEX_INSERT, true, 0, NULL);
2074 if (osd_id_eq_strict(id, id2))
2077 if (!(sf->sf_flags & SF_INCONSISTENT)) {
2078 osd_scrub_file_reset(scrub,
2079 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
2081 rc = osd_scrub_file_store(scrub);
2086 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
2087 DTO_INDEX_UPDATE, true, 0, NULL);
2095 * It scans the /lost+found, and for the OST-object (with filter_fid
2096 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
2098 #ifdef HAVE_FILLDIR_USE_CTX
2099 static int osd_ios_lf_fill(struct dir_context *buf,
2101 static int osd_ios_lf_fill(void *buf,
2103 const char *name, int namelen,
2104 loff_t offset, __u64 ino, unsigned d_type)
2106 struct osd_ios_filldir_buf *fill_buf =
2107 (struct osd_ios_filldir_buf *)buf;
2108 struct osd_thread_info *info = fill_buf->oifb_info;
2109 struct osd_device *dev = fill_buf->oifb_dev;
2110 struct lu_fid *fid = &info->oti_fid;
2111 struct osd_scrub *scrub = &dev->od_scrub;
2112 struct dentry *parent = fill_buf->oifb_dentry;
2113 struct dentry *child;
2114 struct inode *dir = parent->d_inode;
2115 struct inode *inode;
2119 /* skip any '.' started names */
2123 scrub->os_lf_scanned++;
2124 child = osd_ios_lookup_one_len(name, parent, namelen);
2125 if (IS_ERR(child)) {
2126 CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
2127 osd_name(dev), namelen, name, (int)PTR_ERR(child));
2131 inode = child->d_inode;
2132 if (S_ISDIR(inode->i_mode)) {
2133 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2136 CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
2137 "rc = %d\n", osd_name(dev), namelen, name, rc);
2141 if (!S_ISREG(inode->i_mode))
2144 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
2145 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
2146 rc = osd_obj_map_recover(info, dev, dir, child, fid);
2148 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
2149 "/lost+found.\n", namelen, name, PFID(fid));
2150 scrub->os_lf_repaired++;
2152 CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
2154 osd_name(dev), namelen, name, PFID(fid), rc);
2158 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
2159 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
2160 * can process them in furtuer. */
2166 scrub->os_lf_failed++;
2168 /* skip the failure to make the scanning to continue. */
2172 #ifdef HAVE_FILLDIR_USE_CTX
2173 static int osd_ios_varfid_fill(struct dir_context *buf,
2175 static int osd_ios_varfid_fill(void *buf,
2177 const char *name, int namelen,
2178 loff_t offset, __u64 ino, unsigned d_type)
2180 struct osd_ios_filldir_buf *fill_buf =
2181 (struct osd_ios_filldir_buf *)buf;
2182 struct osd_device *dev = fill_buf->oifb_dev;
2183 struct dentry *child;
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 /* skip any '.' started names */
2225 for (map = osd_dl_maps; map->olm_name != NULL; map++) {
2226 if (map->olm_namelen != namelen)
2229 if (strncmp(map->olm_name, name, namelen) == 0)
2233 if (map->olm_name == NULL)
2236 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2238 RETURN(PTR_ERR(child));
2240 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2241 &map->olm_fid, map->olm_flags);
2247 #ifdef HAVE_FILLDIR_USE_CTX
2248 static int osd_ios_uld_fill(struct dir_context *buf,
2250 static int osd_ios_uld_fill(void *buf,
2252 const char *name, int namelen,
2253 loff_t offset, __u64 ino, unsigned d_type)
2255 struct osd_ios_filldir_buf *fill_buf =
2256 (struct osd_ios_filldir_buf *)buf;
2257 struct dentry *child;
2262 /* skip any non-DFID format name */
2266 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2268 RETURN(PTR_ERR(child));
2270 /* skip the start '[' */
2271 sscanf(&name[1], SFID, RFID(&tfid));
2272 if (fid_is_sane(&tfid))
2273 rc = osd_ios_scan_one(fill_buf->oifb_info, fill_buf->oifb_dev,
2274 child->d_inode, &tfid, 0);
2282 #ifdef HAVE_FILLDIR_USE_CTX
2283 static int osd_ios_root_fill(struct dir_context *buf,
2285 static int osd_ios_root_fill(void *buf,
2287 const char *name, int namelen,
2288 loff_t offset, __u64 ino, unsigned d_type)
2290 struct osd_ios_filldir_buf *fill_buf =
2291 (struct osd_ios_filldir_buf *)buf;
2292 struct osd_device *dev = fill_buf->oifb_dev;
2293 const struct osd_lf_map *map;
2294 struct dentry *child;
2298 /* skip any '.' started names */
2302 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
2303 if (map->olm_namelen != namelen)
2306 if (strncmp(map->olm_name, name, namelen) == 0)
2310 if (map->olm_name == NULL)
2313 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2315 RETURN(PTR_ERR(child));
2317 if (!(map->olm_flags & OLF_NO_OI))
2318 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2319 &map->olm_fid, map->olm_flags);
2320 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
2321 rc = osd_ios_new_item(dev, child, map->olm_scandir,
2329 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
2330 struct dentry *dentry, filldir_t filldir)
2332 struct osd_ios_filldir_buf buf = {
2333 #ifdef HAVE_DIR_CONTEXT
2334 .ctx.actor = filldir,
2338 .oifb_dentry = dentry };
2339 struct file *filp = &info->oti_file;
2340 struct inode *inode = dentry->d_inode;
2341 const struct file_operations *fops = inode->i_fop;
2345 LASSERT(filldir != NULL);
2348 filp->f_path.dentry = dentry;
2349 filp->f_mode = FMODE_64BITHASH;
2350 filp->f_mapping = inode->i_mapping;
2352 filp->private_data = NULL;
2353 set_file_inode(filp, inode);
2355 #ifdef HAVE_DIR_CONTEXT
2356 buf.ctx.pos = filp->f_pos;
2357 rc = fops->iterate(filp, &buf.ctx);
2358 filp->f_pos = buf.ctx.pos;
2360 rc = fops->readdir(filp, &buf, filldir);
2362 fops->release(inode, filp);
2368 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
2369 struct dentry *dentry, filldir_t filldir)
2371 struct osd_scrub *scrub = &dev->od_scrub;
2372 struct scrub_file *sf = &scrub->os_file;
2373 struct dentry *child;
2377 /* It is existing MDT0 device. We only allow the case of object without
2378 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
2379 * can generate IGIF mode FID for the object and related OI mapping. If
2380 * it is on other MDTs, then becuase file-level backup/restore, related
2381 * OI mapping may be invalid already, we do not know which is the right
2382 * FID for the object. We only allow IGIF objects to reside on the MDT0.
2384 * XXX: For the case of object on non-MDT0 device with neither LMA nor
2385 * "fid" xattr, then something crashed. We cannot re-generate the
2386 * FID directly, instead, the OI scrub will scan the OI structure
2387 * and try to re-generate the LMA from the OI mapping. But if the
2388 * OI mapping crashed or lost also, then we have to give up under
2389 * double failure cases. */
2390 scrub->os_convert_igif = 1;
2391 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
2392 strlen(dot_lustre_name));
2393 if (IS_ERR(child)) {
2394 rc = PTR_ERR(child);
2395 if (rc == -ENOENT) {
2396 /* It is 1.8 MDT device. */
2397 if (!(sf->sf_flags & SF_UPGRADE)) {
2398 osd_scrub_file_reset(scrub,
2399 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
2401 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2402 rc = osd_scrub_file_store(scrub);
2408 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
2409 * so the client will get IGIF for the ".lustre" object when
2412 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
2413 * it does not know whether there are some old clients cached
2414 * the ".lustre" IGIF during the upgrading. Two choices:
2416 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
2417 * It will allow the old connected clients to access the
2418 * ".lustre" with cached IGIF. But it will cause others
2419 * on the MDT failed to check "fid_is_dot_lustre()".
2421 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
2422 * for ".lustre" in spite of whether there are some clients
2423 * cached the ".lustre" IGIF or not. It enables the check
2424 * "fid_is_dot_lustre()" on the MDT, although it will cause
2425 * that the old connected clients cannot access the ".lustre"
2426 * with the cached IGIF.
2428 * Usually, it is rare case for the old connected clients
2429 * to access the ".lustre" with cached IGIF. So we prefer
2430 * to the solution 2). */
2431 rc = osd_ios_scan_one(info, dev, child->d_inode,
2432 &LU_DOT_LUSTRE_FID, 0);
2434 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2443 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
2444 struct dentry *dentry, filldir_t filldir)
2446 struct osd_scrub *scrub = &dev->od_scrub;
2447 struct scrub_file *sf = &scrub->os_file;
2448 struct dentry *child;
2452 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
2453 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2454 rc = osd_scrub_file_store(scrub);
2459 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
2460 if (!IS_ERR(child)) {
2461 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2464 rc = PTR_ERR(child);
2467 if (rc != 0 && rc != -ENOENT)
2470 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
2471 if (!IS_ERR(child)) {
2472 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2475 rc = PTR_ERR(child);
2484 static int osd_initial_OI_scrub(struct osd_thread_info *info,
2485 struct osd_device *dev)
2487 struct osd_ios_item *item = NULL;
2488 scandir_t scandir = osd_ios_general_scan;
2489 filldir_t filldir = osd_ios_root_fill;
2490 struct dentry *dentry = osd_sb(dev)->s_root;
2491 const struct osd_lf_map *map = osd_lf_maps;
2495 /* Lookup IGIF in OI by force for initial OI scrub. */
2496 dev->od_igif_inoi = 1;
2499 rc = scandir(info, dev, dentry, filldir);
2501 dput(item->oii_dentry);
2508 if (list_empty(&dev->od_ios_list))
2511 item = list_entry(dev->od_ios_list.next,
2512 struct osd_ios_item, oii_list);
2513 list_del_init(&item->oii_list);
2515 LASSERT(item->oii_scandir != NULL);
2516 scandir = item->oii_scandir;
2517 filldir = item->oii_filldir;
2518 dentry = item->oii_dentry;
2521 while (!list_empty(&dev->od_ios_list)) {
2522 item = list_entry(dev->od_ios_list.next,
2523 struct osd_ios_item, oii_list);
2524 list_del_init(&item->oii_list);
2525 dput(item->oii_dentry);
2532 /* There maybe the case that the object has been removed, but its OI
2533 * mapping is still in the OI file, such as the "CATALOGS" after MDT
2534 * file-level backup/restore. So here cleanup the stale OI mappings. */
2535 while (map->olm_name != NULL) {
2536 struct dentry *child;
2538 if (fid_is_zero(&map->olm_fid)) {
2543 child = osd_ios_lookup_one_len(map->olm_name,
2544 osd_sb(dev)->s_root,
2548 else if (PTR_ERR(child) == -ENOENT)
2549 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
2550 NULL, DTO_INDEX_DELETE,
2558 char *osd_lf_fid2name(const struct lu_fid *fid)
2560 const struct osd_lf_map *map = osd_lf_maps;
2562 while (map->olm_name != NULL) {
2563 if (!lu_fid_eq(fid, &map->olm_fid)) {
2568 if (map->olm_flags & OLF_SHOW_NAME)
2569 return map->olm_name;
2577 /* OI scrub start/stop */
2579 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
2581 struct osd_scrub *scrub = &dev->od_scrub;
2582 struct ptlrpc_thread *thread = &scrub->os_thread;
2583 struct l_wait_info lwi = { 0 };
2584 struct task_struct *task;
2588 if (dev->od_dt_dev.dd_rdonly)
2591 /* os_lock: sync status between stop and scrub thread */
2592 spin_lock(&scrub->os_lock);
2595 if (thread_is_running(thread)) {
2596 spin_unlock(&scrub->os_lock);
2597 if (!(scrub->os_file.sf_flags & SF_AUTO ||
2598 scrub->os_partial_scan) ||
2599 (flags & SS_AUTO_PARTIAL))
2602 osd_scrub_join(dev, flags, false);
2603 spin_lock(&scrub->os_lock);
2604 if (!thread_is_running(thread))
2607 spin_unlock(&scrub->os_lock);
2611 if (unlikely(thread_is_stopping(thread))) {
2612 spin_unlock(&scrub->os_lock);
2613 l_wait_event(thread->t_ctl_waitq,
2614 thread_is_stopped(thread),
2616 spin_lock(&scrub->os_lock);
2619 spin_unlock(&scrub->os_lock);
2621 if (scrub->os_file.sf_status == SS_COMPLETED) {
2622 if (!(flags & SS_SET_FAILOUT))
2623 flags |= SS_CLEAR_FAILOUT;
2625 if (!(flags & SS_SET_DRYRUN))
2626 flags |= SS_CLEAR_DRYRUN;
2631 scrub->os_start_flags = flags;
2632 thread_set_flags(thread, 0);
2633 task = kthread_run(osd_scrub_main, dev, "OI_scrub");
2636 CERROR("%.16s: cannot start iteration thread: rc = %d\n",
2637 osd_scrub2name(scrub), rc);
2641 l_wait_event(thread->t_ctl_waitq,
2642 thread_is_running(thread) || thread_is_stopped(thread),
2648 int osd_scrub_start(struct osd_device *dev, __u32 flags)
2653 /* od_otable_mutex: prevent curcurrent start/stop */
2654 mutex_lock(&dev->od_otable_mutex);
2655 rc = do_osd_scrub_start(dev, flags);
2656 mutex_unlock(&dev->od_otable_mutex);
2658 RETURN(rc == -EALREADY ? 0 : rc);
2661 static void do_osd_scrub_stop(struct osd_scrub *scrub)
2663 struct ptlrpc_thread *thread = &scrub->os_thread;
2664 struct l_wait_info lwi = { 0 };
2666 /* os_lock: sync status between stop and scrub thread */
2667 spin_lock(&scrub->os_lock);
2668 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
2669 thread_set_flags(thread, SVC_STOPPING);
2670 spin_unlock(&scrub->os_lock);
2671 wake_up_all(&thread->t_ctl_waitq);
2672 l_wait_event(thread->t_ctl_waitq,
2673 thread_is_stopped(thread),
2675 /* Do not skip the last lock/unlock, which can guarantee that
2676 * the caller cannot return until the OI scrub thread exit. */
2677 spin_lock(&scrub->os_lock);
2679 spin_unlock(&scrub->os_lock);
2682 static void osd_scrub_stop(struct osd_device *dev)
2684 /* od_otable_mutex: prevent curcurrent start/stop */
2685 mutex_lock(&dev->od_otable_mutex);
2686 dev->od_scrub.os_paused = 1;
2687 do_osd_scrub_stop(&dev->od_scrub);
2688 mutex_unlock(&dev->od_otable_mutex);
2691 /* OI scrub setup/cleanup */
2693 static const char osd_scrub_name[] = "OI_scrub";
2695 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2697 struct osd_thread_info *info = osd_oti_get(env);
2698 struct osd_scrub *scrub = &dev->od_scrub;
2699 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2700 struct scrub_file *sf = &scrub->os_file;
2701 struct super_block *sb = osd_sb(dev);
2702 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2703 struct lvfs_run_ctxt saved;
2705 struct inode *inode;
2706 struct lu_fid *fid = &info->oti_fid;
2708 bool restored = false;
2712 memset(scrub, 0, sizeof(*scrub));
2713 OBD_SET_CTXT_MAGIC(ctxt);
2714 ctxt->pwdmnt = dev->od_mnt;
2715 ctxt->pwd = dev->od_mnt->mnt_root;
2716 ctxt->fs = get_ds();
2718 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2719 init_rwsem(&scrub->os_rwsem);
2720 spin_lock_init(&scrub->os_lock);
2721 INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2723 push_ctxt(&saved, ctxt);
2724 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2726 pop_ctxt(&saved, ctxt);
2727 RETURN(PTR_ERR(filp));
2730 inode = file_inode(filp);
2731 /* 'What the @fid is' is not imporatant, because the object
2732 * has no OI mapping, and only is visible inside the OSD.*/
2733 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2734 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2736 filp_close(filp, NULL);
2737 pop_ctxt(&saved, ctxt);
2741 scrub->os_inode = igrab(inode);
2742 filp_close(filp, NULL);
2743 pop_ctxt(&saved, ctxt);
2745 rc = osd_scrub_file_load(scrub);
2746 if (rc == -ENOENT) {
2747 osd_scrub_file_init(scrub, es->s_uuid);
2748 /* If the "/O" dir does not exist when mount (indicated by
2749 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2750 * then it is quite probably that the device is a new one,
2751 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2753 * For the rare case that "/O" and "OI_scrub" both lost on
2754 * an old device, it can be found and cleared later.
2756 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2757 * need to check "filter_fid_old" and to convert it to
2758 * "filter_fid" for each object, and all the IGIF should
2759 * have their FID mapping in OI files already. */
2760 if (dev->od_maybe_new)
2761 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2763 } else if (rc != 0) {
2764 GOTO(cleanup_inode, rc);
2766 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2767 struct obd_uuid *old_uuid;
2768 struct obd_uuid *new_uuid;
2770 OBD_ALLOC_PTR(old_uuid);
2771 OBD_ALLOC_PTR(new_uuid);
2772 if (old_uuid == NULL || new_uuid == NULL) {
2773 CERROR("%.16s: UUID has been changed, but"
2774 "failed to allocate RAM for report\n",
2775 LDISKFS_SB(sb)->s_es->s_volume_name);
2777 class_uuid_unparse(sf->sf_uuid, old_uuid);
2778 class_uuid_unparse(es->s_uuid, new_uuid);
2779 CERROR("%.16s: UUID has been changed from "
2781 LDISKFS_SB(sb)->s_es->s_volume_name,
2782 old_uuid->uuid, new_uuid->uuid);
2784 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2787 if (old_uuid != NULL)
2788 OBD_FREE_PTR(old_uuid);
2789 if (new_uuid != NULL)
2790 OBD_FREE_PTR(new_uuid);
2791 } else if (sf->sf_status == SS_SCANNING) {
2792 sf->sf_status = SS_CRASHED;
2797 if (sf->sf_pos_last_checkpoint != 0)
2798 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2800 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2803 rc = osd_scrub_file_store(scrub);
2805 GOTO(cleanup_inode, rc);
2808 /* Initialize OI files. */
2809 rc = osd_oi_init(info, dev, restored);
2811 GOTO(cleanup_inode, rc);
2813 rc = osd_initial_OI_scrub(info, dev);
2815 GOTO(cleanup_oi, rc);
2817 if (sf->sf_flags & SF_UPGRADE ||
2818 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2819 sf->sf_success_count > 0)) {
2820 dev->od_igif_inoi = 0;
2821 dev->od_check_ff = dev->od_is_ost;
2823 dev->od_igif_inoi = 1;
2824 dev->od_check_ff = 0;
2827 if (sf->sf_flags & SF_INCONSISTENT)
2828 /* The 'od_igif_inoi' will be set under the
2830 * 1) new created system, or
2831 * 2) restored from file-level backup, or
2832 * 3) the upgrading completed.
2834 * The 'od_igif_inoi' may be cleared by OI scrub
2835 * later if found that the system is upgrading. */
2836 dev->od_igif_inoi = 1;
2838 if (!dev->od_dt_dev.dd_rdonly && !dev->od_noscrub &&
2839 ((sf->sf_status == SS_PAUSED) ||
2840 (sf->sf_status == SS_CRASHED &&
2841 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2842 SF_UPGRADE | SF_AUTO)) ||
2843 (sf->sf_status == SS_INIT &&
2844 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2846 rc = osd_scrub_start(dev, SS_AUTO_FULL);
2849 GOTO(cleanup_oi, rc);
2851 /* it is possible that dcache entries may keep objects after they are
2852 * deleted by OSD. While it looks safe this can cause object data to
2853 * stay until umount causing failures in tests calculating free space,
2854 * e.g. replay-ost-single. Since those dcache entries are not used
2855 * anymore let's just free them after use here */
2856 shrink_dcache_sb(sb);
2860 osd_oi_fini(info, dev);
2862 iput(scrub->os_inode);
2863 scrub->os_inode = NULL;
2868 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2870 struct osd_scrub *scrub = &dev->od_scrub;
2872 LASSERT(dev->od_otable_it == NULL);
2874 if (scrub->os_inode != NULL) {
2875 osd_scrub_stop(dev);
2876 iput(scrub->os_inode);
2877 scrub->os_inode = NULL;
2879 if (dev->od_oi_table != NULL)
2880 osd_oi_fini(osd_oti_get(env), dev);
2883 /* object table based iteration APIs */
2885 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2886 struct dt_object *dt, __u32 attr)
2888 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2889 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2890 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2891 struct osd_scrub *scrub = &dev->od_scrub;
2892 struct osd_otable_it *it;
2897 /* od_otable_mutex: prevent curcurrent init/fini */
2898 mutex_lock(&dev->od_otable_mutex);
2899 if (dev->od_otable_it != NULL)
2900 GOTO(out, it = ERR_PTR(-EALREADY));
2904 GOTO(out, it = ERR_PTR(-ENOMEM));
2906 dev->od_otable_it = it;
2908 it->ooi_cache.ooc_consumer_idx = -1;
2909 if (flags & DOIF_OUTUSED)
2910 it->ooi_used_outside = 1;
2912 if (flags & DOIF_RESET)
2915 if (valid & DOIV_ERROR_HANDLE) {
2916 if (flags & DOIF_FAILOUT)
2917 start |= SS_SET_FAILOUT;
2919 start |= SS_CLEAR_FAILOUT;
2922 if (valid & DOIV_DRYRUN) {
2923 if (flags & DOIF_DRYRUN)
2924 start |= SS_SET_DRYRUN;
2926 start |= SS_CLEAR_DRYRUN;
2929 rc = do_osd_scrub_start(dev, start & ~SS_AUTO_PARTIAL);
2930 if (rc < 0 && rc != -EALREADY) {
2931 dev->od_otable_it = NULL;
2933 GOTO(out, it = ERR_PTR(rc));
2936 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2941 mutex_unlock(&dev->od_otable_mutex);
2942 return (struct dt_it *)it;
2945 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2947 struct osd_otable_it *it = (struct osd_otable_it *)di;
2948 struct osd_device *dev = it->ooi_dev;
2950 /* od_otable_mutex: prevent curcurrent init/fini */
2951 mutex_lock(&dev->od_otable_mutex);
2952 do_osd_scrub_stop(&dev->od_scrub);
2953 LASSERT(dev->od_otable_it == it);
2955 dev->od_otable_it = NULL;
2956 mutex_unlock(&dev->od_otable_mutex);
2960 static int osd_otable_it_get(const struct lu_env *env,
2961 struct dt_it *di, const struct dt_key *key)
2966 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2971 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2973 spin_lock(&scrub->os_lock);
2974 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2975 scrub->os_waiting ||
2976 !thread_is_running(&scrub->os_thread))
2977 it->ooi_waiting = 0;
2979 it->ooi_waiting = 1;
2980 spin_unlock(&scrub->os_lock);
2982 return !it->ooi_waiting;
2985 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2987 struct osd_otable_it *it = (struct osd_otable_it *)di;
2988 struct osd_device *dev = it->ooi_dev;
2989 struct osd_scrub *scrub = &dev->od_scrub;
2990 struct osd_otable_cache *ooc = &it->ooi_cache;
2991 struct ptlrpc_thread *thread = &scrub->os_thread;
2992 struct l_wait_info lwi = { 0 };
2996 LASSERT(it->ooi_user_ready);
2999 if (!thread_is_running(thread) && !it->ooi_used_outside)
3002 if (ooc->ooc_cached_items > 0) {
3003 ooc->ooc_cached_items--;
3004 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
3005 ~OSD_OTABLE_IT_CACHE_MASK;
3009 if (it->ooi_all_cached) {
3010 l_wait_event(thread->t_ctl_waitq,
3011 !thread_is_running(thread),
3016 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
3017 spin_lock(&scrub->os_lock);
3018 scrub->os_waiting = 0;
3019 wake_up_all(&scrub->os_thread.t_ctl_waitq);
3020 spin_unlock(&scrub->os_lock);
3023 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
3024 l_wait_event(thread->t_ctl_waitq,
3025 osd_otable_it_wakeup(scrub, it),
3028 if (!thread_is_running(thread) && !it->ooi_used_outside)
3031 rc = osd_otable_it_preload(env, it);
3038 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
3039 const struct dt_it *di)
3044 static int osd_otable_it_key_size(const struct lu_env *env,
3045 const struct dt_it *di)
3047 return sizeof(__u64);
3050 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
3051 struct dt_rec *rec, __u32 attr)
3053 struct osd_otable_it *it = (struct osd_otable_it *)di;
3054 struct osd_otable_cache *ooc = &it->ooi_cache;
3056 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
3058 /* Filter out Invald FID already. */
3059 LASSERTF(fid_is_sane((struct lu_fid *)rec),
3060 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
3061 PFID((struct lu_fid *)rec),
3062 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
3067 static __u64 osd_otable_it_store(const struct lu_env *env,
3068 const struct dt_it *di)
3070 struct osd_otable_it *it = (struct osd_otable_it *)di;
3071 struct osd_otable_cache *ooc = &it->ooi_cache;
3074 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
3075 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
3077 hash = ooc->ooc_pos_preload;
3082 * Set the OSD layer iteration start position as the specified hash.
3084 static int osd_otable_it_load(const struct lu_env *env,
3085 const struct dt_it *di, __u64 hash)
3087 struct osd_otable_it *it = (struct osd_otable_it *)di;
3088 struct osd_device *dev = it->ooi_dev;
3089 struct osd_otable_cache *ooc = &it->ooi_cache;
3090 struct osd_scrub *scrub = &dev->od_scrub;
3094 /* Forbid to set iteration position after iteration started. */
3095 if (it->ooi_user_ready)
3098 LASSERT(!scrub->os_partial_scan);
3100 if (hash > OSD_OTABLE_MAX_HASH)
3101 hash = OSD_OTABLE_MAX_HASH;
3103 /* The hash is the last checkpoint position,
3104 * we will start from the next one. */
3105 ooc->ooc_pos_preload = hash + 1;
3106 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
3107 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
3109 it->ooi_user_ready = 1;
3110 if (!scrub->os_full_speed)
3111 wake_up_all(&scrub->os_thread.t_ctl_waitq);
3113 /* Unplug OSD layer iteration by the first next() call. */
3114 rc = osd_otable_it_next(env, (struct dt_it *)it);
3119 static int osd_otable_it_key_rec(const struct lu_env *env,
3120 const struct dt_it *di, void *key_rec)
3125 const struct dt_index_operations osd_otable_ops = {
3127 .init = osd_otable_it_init,
3128 .fini = osd_otable_it_fini,
3129 .get = osd_otable_it_get,
3130 .put = osd_otable_it_put,
3131 .next = osd_otable_it_next,
3132 .key = osd_otable_it_key,
3133 .key_size = osd_otable_it_key_size,
3134 .rec = osd_otable_it_rec,
3135 .store = osd_otable_it_store,
3136 .load = osd_otable_it_load,
3137 .key_rec = osd_otable_it_key_rec,
3141 /* high priority inconsistent items list APIs */
3143 #define SCRUB_BAD_OIMAP_DECAY_INTERVAL 60
3145 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
3148 struct osd_inconsistent_item *oii;
3149 struct osd_scrub *scrub = &dev->od_scrub;
3150 struct ptlrpc_thread *thread = &scrub->os_thread;
3155 if (unlikely(oii == NULL))
3158 INIT_LIST_HEAD(&oii->oii_list);
3159 oii->oii_cache = *oic;
3160 oii->oii_insert = insert;
3162 if (scrub->os_partial_scan) {
3163 __u64 now = cfs_time_current_sec();
3165 /* If there haven't been errors in a long time,
3166 * decay old count until either the errors are
3167 * gone or we reach the current interval. */
3168 while (unlikely(scrub->os_bad_oimap_count > 0 &&
3169 scrub->os_bad_oimap_time +
3170 SCRUB_BAD_OIMAP_DECAY_INTERVAL < now)) {
3171 scrub->os_bad_oimap_count >>= 1;
3172 scrub->os_bad_oimap_time +=
3173 SCRUB_BAD_OIMAP_DECAY_INTERVAL;
3176 scrub->os_bad_oimap_time = now;
3177 if (++scrub->os_bad_oimap_count >
3178 dev->od_full_scrub_threshold_rate)
3179 scrub->os_full_scrub = 1;
3182 spin_lock(&scrub->os_lock);
3183 if (unlikely(!thread_is_running(thread))) {
3184 spin_unlock(&scrub->os_lock);
3189 if (list_empty(&scrub->os_inconsistent_items))
3191 list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
3192 spin_unlock(&scrub->os_lock);
3195 wake_up_all(&thread->t_ctl_waitq);
3200 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
3201 struct osd_inode_id *id)
3203 struct osd_scrub *scrub = &dev->od_scrub;
3204 struct osd_inconsistent_item *oii;
3207 spin_lock(&scrub->os_lock);
3208 list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
3209 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
3210 *id = oii->oii_cache.oic_lid;
3211 spin_unlock(&scrub->os_lock);
3215 spin_unlock(&scrub->os_lock);
3222 static const char *scrub_status_names[] = {
3233 static const char *scrub_flags_names[] = {
3241 static const char *scrub_param_names[] = {
3247 static void scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
3253 seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
3255 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
3258 seq_printf(m, "%s%c", names[i],
3259 bits != 0 ? ',' : '\n');
3264 static void scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
3267 seq_printf(m, "%s: %llu seconds\n", prefix,
3268 cfs_time_current_sec() - time);
3270 seq_printf(m, "%s: N/A\n", prefix);
3273 static void scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
3276 seq_printf(m, "%s: %llu\n", prefix, pos);
3278 seq_printf(m, "%s: N/A\n", prefix);
3281 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
3283 struct osd_scrub *scrub = &dev->od_scrub;
3284 struct scrub_file *sf = &scrub->os_file;
3288 down_read(&scrub->os_rwsem);
3289 seq_printf(m, "name: OI_scrub\n"
3293 sf->sf_magic, (int)sf->sf_oi_count,
3294 scrub_status_names[sf->sf_status]);
3296 scrub_bits_dump(m, sf->sf_flags, scrub_flags_names, "flags");
3298 scrub_bits_dump(m, sf->sf_param, scrub_param_names, "param");
3300 scrub_time_dump(m, sf->sf_time_last_complete,
3301 "time_since_last_completed");
3303 scrub_time_dump(m, sf->sf_time_latest_start,
3304 "time_since_latest_start");
3306 scrub_time_dump(m, sf->sf_time_last_checkpoint,
3307 "time_since_last_checkpoint");
3309 scrub_pos_dump(m, sf->sf_pos_latest_start,
3310 "latest_start_position");
3312 scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
3313 "last_checkpoint_position");
3315 scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
3316 "first_failure_position");
3318 checked = sf->sf_items_checked + scrub->os_new_checked;
3319 seq_printf(m, "checked: %llu\n"
3322 "prior_updated: %llu\n"
3325 "success_count: %u\n",
3326 checked, sf->sf_items_updated, sf->sf_items_failed,
3327 sf->sf_items_updated_prior, sf->sf_items_noscrub,
3328 sf->sf_items_igif, sf->sf_success_count);
3331 if (thread_is_running(&scrub->os_thread)) {
3332 cfs_duration_t duration = cfs_time_current() -
3333 scrub->os_time_last_checkpoint;
3334 __u64 new_checked = msecs_to_jiffies(scrub->os_new_checked *
3336 __u32 rtime = sf->sf_run_time +
3337 cfs_duration_sec(duration + HALF_SEC);
3340 do_div(new_checked, duration);
3342 do_div(speed, rtime);
3343 seq_printf(m, "run_time: %u seconds\n"
3344 "average_speed: %llu objects/sec\n"
3345 "real-time_speed: %llu objects/sec\n"
3346 "current_position: %u\n"
3347 "lf_scanned: %llu\n"
3348 "lf_repaired: %llu\n"
3349 "lf_failed: %llu\n",
3350 rtime, speed, new_checked, scrub->os_pos_current,
3351 scrub->os_lf_scanned, scrub->os_lf_repaired,
3352 scrub->os_lf_failed);
3354 if (sf->sf_run_time != 0)
3355 do_div(speed, sf->sf_run_time);
3356 seq_printf(m, "run_time: %u seconds\n"
3357 "average_speed: %llu objects/sec\n"
3358 "real-time_speed: N/A\n"
3359 "current_position: N/A\n"
3360 "lf_scanned: %llu\n"
3361 "lf_repaired: %llu\n"
3362 "lf_failed: %llu\n",
3363 sf->sf_run_time, speed, scrub->os_lf_scanned,
3364 scrub->os_lf_repaired, scrub->os_lf_failed);
3367 up_read(&scrub->os_rwsem);