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, 2014, 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 <lustre/lustre_idl.h>
41 #include <lustre_disk.h>
42 #include <dt_object.h>
43 #include <linux/xattr.h>
45 #include "osd_internal.h"
47 #include "osd_scrub.h"
49 #define HALF_SEC msecs_to_jiffies(MSEC_PER_SEC >> 1)
51 #define OSD_OTABLE_MAX_HASH 0x00000000ffffffffULL
53 #define SCRUB_NEXT_BREAK 1 /* exit current loop and process next group */
54 #define SCRUB_NEXT_CONTINUE 2 /* skip current object and process next bit */
55 #define SCRUB_NEXT_EXIT 3 /* exit all the loops */
56 #define SCRUB_NEXT_WAIT 4 /* wait for free cache slot */
57 #define SCRUB_NEXT_CRASH 5 /* simulate system crash during OI scrub */
58 #define SCRUB_NEXT_FATAL 6 /* simulate failure during OI scrub */
59 #define SCRUB_NEXT_NOSCRUB 7 /* new created object, no scrub on it */
60 #define SCRUB_NEXT_NOLMA 8 /* the inode has no FID-in-LMA */
61 #define SCRUB_NEXT_OSTOBJ 9 /* for OST-object */
62 #define SCRUB_NEXT_OSTOBJ_OLD 10 /* old OST-object, no LMA or no FID-on-OST
67 static inline struct osd_device *osd_scrub2dev(struct osd_scrub *scrub)
69 return container_of0(scrub, struct osd_device, od_scrub);
72 static inline struct super_block *osd_scrub2sb(struct osd_scrub *scrub)
74 return osd_sb(osd_scrub2dev(scrub));
77 static inline int osd_scrub_has_window(struct osd_scrub *scrub,
78 struct osd_otable_cache *ooc)
80 return scrub->os_pos_current < ooc->ooc_pos_preload + SCRUB_WINDOW_SIZE;
83 static inline const char *osd_scrub2name(struct osd_scrub *scrub)
85 return LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name;
89 * update/insert/delete the specified OI mapping (@fid @id) according to the ops
91 * \retval 1, changed nothing
92 * \retval 0, changed successfully
93 * \retval -ve, on error
95 static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
96 struct osd_device *dev,
97 const struct lu_fid *fid,
98 const struct osd_inode_id *id,
100 enum oi_check_flags flags)
106 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN && !force)
109 /* DTO_INDEX_INSERT is enough for other two ops:
110 * delete/update, but save stack. */
111 th = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
112 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
115 CDEBUG(D_LFSCK, "%s: fail to start trans for scrub op %d "
116 DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
117 PFID(fid), id->oii_ino, id->oii_gen, rc);
122 case DTO_INDEX_UPDATE:
123 rc = osd_oi_update(info, dev, fid, id, th, flags);
124 if (unlikely(rc == -ENOENT)) {
125 /* Some unlink thread may removed the OI mapping. */
129 case DTO_INDEX_INSERT:
130 rc = osd_oi_insert(info, dev, fid, id, th, flags);
131 if (unlikely(rc == -EEXIST)) {
133 /* XXX: There are trouble things when adding OI
134 * mapping for IGIF object, which may cause
135 * multiple objects to be mapped to the same
136 * IGIF formatted FID. Consider the following
139 * 1) The MDT is upgrading from 1.8 device.
140 * The OI scrub generates IGIF FID1 for the
141 * OBJ1 and adds the OI mapping.
143 * 2) For some reason, the OI scrub does not
144 * process all the IGIF objects completely.
146 * 3) The MDT is backuped and restored against
149 * 4) When the MDT mounts up, the OI scrub will
150 * try to rebuild the OI files. For some IGIF
151 * object, OBJ2, which was not processed by the
152 * OI scrub before the backup/restore, and the
153 * new generated IGIF formatted FID may be just
154 * the FID1, the same as OBJ1.
156 * Under such case, the OI scrub cannot know how
157 * to generate new FID for the OBJ2.
159 * Currently, we do nothing for that. One possible
160 * solution is to generate new normal FID for the
163 * Anyway, it is rare, only exists in theory. */
166 case DTO_INDEX_DELETE:
167 rc = osd_oi_delete(info, dev, fid, th, flags);
169 /* It is normal that the unlink thread has removed the
170 * OI mapping already. */
175 LASSERTF(0, "Unexpected ops %d\n", ops);
179 ldiskfs_journal_stop(th);
181 CDEBUG(D_LFSCK, "%s: fail to refresh OI map for scrub op %d "
182 DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
183 PFID(fid), id->oii_ino, id->oii_gen, rc);
188 /* OI_scrub file ops */
190 static void osd_scrub_file_to_cpu(struct scrub_file *des,
191 struct scrub_file *src)
193 memcpy(des->sf_uuid, src->sf_uuid, 16);
194 des->sf_flags = le64_to_cpu(src->sf_flags);
195 des->sf_magic = le32_to_cpu(src->sf_magic);
196 des->sf_status = le16_to_cpu(src->sf_status);
197 des->sf_param = le16_to_cpu(src->sf_param);
198 des->sf_time_last_complete =
199 le64_to_cpu(src->sf_time_last_complete);
200 des->sf_time_latest_start =
201 le64_to_cpu(src->sf_time_latest_start);
202 des->sf_time_last_checkpoint =
203 le64_to_cpu(src->sf_time_last_checkpoint);
204 des->sf_pos_latest_start =
205 le64_to_cpu(src->sf_pos_latest_start);
206 des->sf_pos_last_checkpoint =
207 le64_to_cpu(src->sf_pos_last_checkpoint);
208 des->sf_pos_first_inconsistent =
209 le64_to_cpu(src->sf_pos_first_inconsistent);
210 des->sf_items_checked =
211 le64_to_cpu(src->sf_items_checked);
212 des->sf_items_updated =
213 le64_to_cpu(src->sf_items_updated);
214 des->sf_items_failed =
215 le64_to_cpu(src->sf_items_failed);
216 des->sf_items_updated_prior =
217 le64_to_cpu(src->sf_items_updated_prior);
218 des->sf_run_time = le32_to_cpu(src->sf_run_time);
219 des->sf_success_count = le32_to_cpu(src->sf_success_count);
220 des->sf_oi_count = le16_to_cpu(src->sf_oi_count);
221 des->sf_internal_flags = le16_to_cpu(src->sf_internal_flags);
222 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
225 static void osd_scrub_file_to_le(struct scrub_file *des,
226 struct scrub_file *src)
228 memcpy(des->sf_uuid, src->sf_uuid, 16);
229 des->sf_flags = cpu_to_le64(src->sf_flags);
230 des->sf_magic = cpu_to_le32(src->sf_magic);
231 des->sf_status = cpu_to_le16(src->sf_status);
232 des->sf_param = cpu_to_le16(src->sf_param);
233 des->sf_time_last_complete =
234 cpu_to_le64(src->sf_time_last_complete);
235 des->sf_time_latest_start =
236 cpu_to_le64(src->sf_time_latest_start);
237 des->sf_time_last_checkpoint =
238 cpu_to_le64(src->sf_time_last_checkpoint);
239 des->sf_pos_latest_start =
240 cpu_to_le64(src->sf_pos_latest_start);
241 des->sf_pos_last_checkpoint =
242 cpu_to_le64(src->sf_pos_last_checkpoint);
243 des->sf_pos_first_inconsistent =
244 cpu_to_le64(src->sf_pos_first_inconsistent);
245 des->sf_items_checked =
246 cpu_to_le64(src->sf_items_checked);
247 des->sf_items_updated =
248 cpu_to_le64(src->sf_items_updated);
249 des->sf_items_failed =
250 cpu_to_le64(src->sf_items_failed);
251 des->sf_items_updated_prior =
252 cpu_to_le64(src->sf_items_updated_prior);
253 des->sf_run_time = cpu_to_le32(src->sf_run_time);
254 des->sf_success_count = cpu_to_le32(src->sf_success_count);
255 des->sf_oi_count = cpu_to_le16(src->sf_oi_count);
256 des->sf_internal_flags = cpu_to_le16(src->sf_internal_flags);
257 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
260 static void osd_scrub_file_init(struct osd_scrub *scrub, __u8 *uuid)
262 struct scrub_file *sf = &scrub->os_file;
264 memset(sf, 0, sizeof(*sf));
265 memcpy(sf->sf_uuid, uuid, 16);
266 sf->sf_magic = SCRUB_MAGIC_V1;
267 sf->sf_status = SS_INIT;
270 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags)
272 struct scrub_file *sf = &scrub->os_file;
274 CDEBUG(D_LFSCK, "%.16s: reset OI scrub file, old flags = "
275 LPX64", add flags = "LPX64"\n",
276 osd_scrub2name(scrub), sf->sf_flags, flags);
278 memcpy(sf->sf_uuid, uuid, 16);
279 sf->sf_status = SS_INIT;
280 sf->sf_flags |= flags;
281 sf->sf_flags &= ~SF_AUTO;
283 sf->sf_time_latest_start = 0;
284 sf->sf_time_last_checkpoint = 0;
285 sf->sf_pos_latest_start = 0;
286 sf->sf_pos_last_checkpoint = 0;
287 sf->sf_pos_first_inconsistent = 0;
288 sf->sf_items_checked = 0;
289 sf->sf_items_updated = 0;
290 sf->sf_items_failed = 0;
291 if (!scrub->os_in_join)
292 sf->sf_items_updated_prior = 0;
294 sf->sf_items_noscrub = 0;
295 sf->sf_items_igif = 0;
298 static int osd_scrub_file_load(struct osd_scrub *scrub)
301 int len = sizeof(scrub->os_file_disk);
304 rc = osd_ldiskfs_read(scrub->os_inode, &scrub->os_file_disk, len, &pos);
306 struct scrub_file *sf = &scrub->os_file;
308 osd_scrub_file_to_cpu(sf, &scrub->os_file_disk);
309 if (sf->sf_magic != SCRUB_MAGIC_V1) {
310 CDEBUG(D_LFSCK, "%.16s: invalid scrub magic "
311 "0x%x != 0x%x\n", osd_scrub2name(scrub),
312 sf->sf_magic, SCRUB_MAGIC_V1);
313 /* Process it as new scrub file. */
318 } else if (rc != 0) {
319 CDEBUG(D_LFSCK, "%.16s: fail to load scrub file, "
320 "expected = %d: rc = %d\n",
321 osd_scrub2name(scrub), len, rc);
325 /* return -ENOENT for empty scrub file case. */
332 int osd_scrub_file_store(struct osd_scrub *scrub)
334 struct osd_device *dev;
337 int len = sizeof(scrub->os_file_disk);
341 dev = container_of0(scrub, struct osd_device, od_scrub);
342 credits = osd_dto_credits_noquota[DTO_WRITE_BASE] +
343 osd_dto_credits_noquota[DTO_WRITE_BLOCK];
344 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, credits);
347 CDEBUG(D_LFSCK, "%.16s: fail to start trans for scrub store: "
348 "rc = %d\n", osd_scrub2name(scrub), rc);
352 osd_scrub_file_to_le(&scrub->os_file_disk, &scrub->os_file);
353 rc = osd_ldiskfs_write_record(scrub->os_inode, &scrub->os_file_disk,
355 ldiskfs_journal_stop(jh);
357 CDEBUG(D_LFSCK, "%.16s: fail to store scrub file, "
358 "expected = %d: rc = %d\n",
359 osd_scrub2name(scrub), len, rc);
361 scrub->os_time_last_checkpoint = cfs_time_current();
362 scrub->os_time_next_checkpoint = scrub->os_time_last_checkpoint +
363 cfs_time_seconds(SCRUB_CHECKPOINT_INTERVAL);
368 osd_scrub_convert_ff(struct osd_thread_info *info, struct osd_device *dev,
369 struct inode *inode, const struct lu_fid *fid)
371 struct filter_fid_old *ff = &info->oti_ff;
372 struct dentry *dentry = &info->oti_obj_dentry;
376 bool removed = false;
380 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN)
383 /* We want the LMA to fit into the 256-byte OST inode, so operate
385 * 1) read old XATTR_NAME_FID and save the parent FID;
386 * 2) delete the old XATTR_NAME_FID;
387 * 3) make new LMA and add it;
388 * 4) generate new XATTR_NAME_FID with the saved parent FID and add it.
390 * Making the LMA to fit into the 256-byte OST inode can save time for
391 * normal osd_check_lma() and for other OI scrub scanning in future.
392 * So it is worth to make some slow conversion here. */
393 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
394 osd_dto_credits_noquota[DTO_XATTR_SET] * 3);
397 CDEBUG(D_LFSCK, "%s: fail to start trans for convert ff "
398 DFID": rc = %d\n", osd_name(dev), PFID(fid), rc);
402 /* 1) read old XATTR_NAME_FID and save the parent FID */
403 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
404 if (rc == sizeof(*ff)) {
405 /* 2) delete the old XATTR_NAME_FID */
406 ll_vfs_dq_init(inode);
407 rc = inode->i_op->removexattr(dentry, XATTR_NAME_FID);
412 } else if (unlikely(rc == -ENODATA)) {
414 } else if (rc != sizeof(struct filter_fid)) {
415 GOTO(stop, rc = -EINVAL);
418 /* 3) make new LMA and add it */
419 rc = osd_ea_fid_set(info, inode, fid, LMAC_FID_ON_OST, 0);
420 if (rc == 0 && reset)
421 size = sizeof(struct filter_fid);
422 else if (rc != 0 && removed)
423 /* If failed, we should try to add the old back. */
424 size = sizeof(struct filter_fid_old);
426 /* 4) generate new XATTR_NAME_FID with the saved parent FID and add it*/
430 rc1 = __osd_xattr_set(info, inode, XATTR_NAME_FID, ff, size,
432 if (rc1 != 0 && rc == 0)
439 ldiskfs_journal_stop(jh);
441 CDEBUG(D_LFSCK, "%s: fail to convert ff "DFID": rc = %d\n",
442 osd_name(dev), PFID(fid), rc);
447 osd_scrub_check_update(struct osd_thread_info *info, struct osd_device *dev,
448 struct osd_idmap_cache *oic, int val)
450 struct osd_scrub *scrub = &dev->od_scrub;
451 struct scrub_file *sf = &scrub->os_file;
452 struct lu_fid *fid = &oic->oic_fid;
453 struct osd_inode_id *lid = &oic->oic_lid;
454 struct osd_inode_id *lid2 = &info->oti_id;
455 struct osd_inconsistent_item *oii = NULL;
456 struct inode *inode = NULL;
457 int ops = DTO_INDEX_UPDATE;
460 bool converted = false;
463 down_write(&scrub->os_rwsem);
464 scrub->os_new_checked++;
468 if (scrub->os_in_prior)
469 oii = list_entry(oic, struct osd_inconsistent_item,
472 if (lid->oii_ino < sf->sf_pos_latest_start && oii == NULL)
475 if (fid_is_igif(fid))
478 if (val == SCRUB_NEXT_OSTOBJ_OLD) {
479 inode = osd_iget(info, dev, lid);
482 /* Someone removed the inode. */
483 if (rc == -ENOENT || rc == -ESTALE)
488 sf->sf_flags |= SF_UPGRADE;
489 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
490 dev->od_check_ff = 1;
491 rc = osd_scrub_convert_ff(info, dev, inode, fid);
498 if ((val == SCRUB_NEXT_NOLMA) &&
499 (!scrub->os_convert_igif || OBD_FAIL_CHECK(OBD_FAIL_FID_NOLMA)))
502 if ((oii != NULL && oii->oii_insert) || (val == SCRUB_NEXT_NOLMA))
505 rc = osd_oi_lookup(info, dev, fid, lid2,
506 (val == SCRUB_NEXT_OSTOBJ ||
507 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
509 if (rc != -ENOENT && rc != -ESTALE)
514 inode = osd_iget(info, dev, lid);
517 /* Someone removed the inode. */
518 if (rc == -ENOENT || rc == -ESTALE)
524 if (!scrub->os_partial_scan)
525 scrub->os_full_speed = 1;
527 ops = DTO_INDEX_INSERT;
528 idx = osd_oi_fid2idx(dev, fid);
530 case SCRUB_NEXT_NOLMA:
531 sf->sf_flags |= SF_UPGRADE;
532 if (!(sf->sf_param & SP_DRYRUN)) {
533 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
538 if (!(sf->sf_flags & SF_INCONSISTENT))
539 dev->od_igif_inoi = 0;
541 case SCRUB_NEXT_OSTOBJ:
542 sf->sf_flags |= SF_INCONSISTENT;
543 case SCRUB_NEXT_OSTOBJ_OLD:
546 sf->sf_flags |= SF_RECREATED;
547 if (unlikely(!ldiskfs_test_bit(idx, sf->sf_oi_bitmap)))
548 ldiskfs_set_bit(idx, sf->sf_oi_bitmap);
551 } else if (osd_id_eq(lid, lid2)) {
553 sf->sf_items_updated++;
557 if (!scrub->os_partial_scan)
558 scrub->os_full_speed = 1;
560 sf->sf_flags |= SF_INCONSISTENT;
562 /* XXX: If the device is restored from file-level backup, then
563 * some IGIFs may have been already in OI files, and some
564 * may be not yet. Means upgrading from 1.8 may be partly
565 * processed, but some clients may hold some immobilized
566 * IGIFs, and use them to access related objects. Under
567 * such case, OSD does not know whether an given IGIF has
568 * been processed or to be processed, and it also cannot
569 * generate local ino#/gen# directly from the immobilized
570 * IGIF because of the backup/restore. Then force OSD to
571 * lookup the given IGIF in OI files, and if no entry,
572 * then ask the client to retry after upgrading completed.
573 * No better choice. */
574 dev->od_igif_inoi = 1;
577 rc = osd_scrub_refresh_mapping(info, dev, fid, lid, ops, false,
578 (val == SCRUB_NEXT_OSTOBJ ||
579 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
581 if (scrub->os_in_prior)
582 sf->sf_items_updated_prior++;
584 sf->sf_items_updated++;
586 /* The target has been changed, need to be re-loaded. */
587 lu_object_purge(info->oti_env, osd2lu_dev(dev), fid);
594 sf->sf_items_failed++;
595 if (sf->sf_pos_first_inconsistent == 0 ||
596 sf->sf_pos_first_inconsistent > lid->oii_ino)
597 sf->sf_pos_first_inconsistent = lid->oii_ino;
602 /* There may be conflict unlink during the OI scrub,
603 * if happend, then remove the new added OI mapping. */
604 if (ops == DTO_INDEX_INSERT && inode != NULL && !IS_ERR(inode) &&
605 unlikely(inode->i_nlink == 0))
606 osd_scrub_refresh_mapping(info, dev, fid, lid,
607 DTO_INDEX_DELETE, false,
608 (val == SCRUB_NEXT_OSTOBJ ||
609 val == SCRUB_NEXT_OSTOBJ_OLD) ?
610 OI_KNOWN_ON_OST : 0);
611 up_write(&scrub->os_rwsem);
613 if (inode != NULL && !IS_ERR(inode))
617 LASSERT(!list_empty(&oii->oii_list));
619 spin_lock(&scrub->os_lock);
620 list_del_init(&oii->oii_list);
621 spin_unlock(&scrub->os_lock);
624 RETURN(sf->sf_param & SP_FAILOUT ? rc : 0);
629 static int osd_scrub_prep(struct osd_device *dev)
631 struct osd_scrub *scrub = &dev->od_scrub;
632 struct ptlrpc_thread *thread = &scrub->os_thread;
633 struct scrub_file *sf = &scrub->os_file;
634 __u32 flags = scrub->os_start_flags;
636 bool drop_dryrun = false;
639 CDEBUG(D_LFSCK, "%.16s: OI scrub prep, flags = 0x%x\n",
640 osd_scrub2name(scrub), flags);
642 down_write(&scrub->os_rwsem);
643 if (flags & SS_SET_FAILOUT)
644 sf->sf_param |= SP_FAILOUT;
645 else if (flags & SS_CLEAR_FAILOUT)
646 sf->sf_param &= ~SP_FAILOUT;
648 if (flags & SS_SET_DRYRUN) {
649 sf->sf_param |= SP_DRYRUN;
650 } else if (flags & SS_CLEAR_DRYRUN && sf->sf_param & SP_DRYRUN) {
651 sf->sf_param &= ~SP_DRYRUN;
655 if (flags & SS_RESET)
656 osd_scrub_file_reset(scrub,
657 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, 0);
659 if (flags & SS_AUTO_FULL) {
660 scrub->os_full_speed = 1;
661 scrub->os_partial_scan = 0;
662 sf->sf_flags |= SF_AUTO;
663 } else if (flags & SS_AUTO_PARTIAL) {
664 scrub->os_full_speed = 0;
665 scrub->os_partial_scan = 1;
666 sf->sf_flags |= SF_AUTO;
667 } else if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
669 scrub->os_full_speed = 1;
670 scrub->os_partial_scan = 0;
672 scrub->os_full_speed = 0;
673 scrub->os_partial_scan = 0;
676 spin_lock(&scrub->os_lock);
677 scrub->os_in_prior = 0;
678 scrub->os_waiting = 0;
679 scrub->os_paused = 0;
680 scrub->os_in_join = 0;
681 scrub->os_full_scrub = 0;
682 spin_unlock(&scrub->os_lock);
683 scrub->os_new_checked = 0;
684 if (drop_dryrun && sf->sf_pos_first_inconsistent != 0)
685 sf->sf_pos_latest_start = sf->sf_pos_first_inconsistent;
686 else if (sf->sf_pos_last_checkpoint != 0)
687 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
689 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
691 scrub->os_pos_current = sf->sf_pos_latest_start;
692 sf->sf_status = SS_SCANNING;
693 sf->sf_time_latest_start = cfs_time_current_sec();
694 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
695 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
696 rc = osd_scrub_file_store(scrub);
698 spin_lock(&scrub->os_lock);
699 thread_set_flags(thread, SVC_RUNNING);
700 spin_unlock(&scrub->os_lock);
701 wake_up_all(&thread->t_ctl_waitq);
703 up_write(&scrub->os_rwsem);
708 static int osd_scrub_checkpoint(struct osd_scrub *scrub)
710 struct scrub_file *sf = &scrub->os_file;
713 if (likely(cfs_time_before(cfs_time_current(),
714 scrub->os_time_next_checkpoint) ||
715 scrub->os_new_checked == 0))
718 down_write(&scrub->os_rwsem);
719 sf->sf_items_checked += scrub->os_new_checked;
720 scrub->os_new_checked = 0;
721 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
722 sf->sf_time_last_checkpoint = cfs_time_current_sec();
723 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
724 scrub->os_time_last_checkpoint);
725 rc = osd_scrub_file_store(scrub);
726 up_write(&scrub->os_rwsem);
731 static void osd_scrub_post(struct osd_scrub *scrub, int result)
733 struct scrub_file *sf = &scrub->os_file;
736 CDEBUG(D_LFSCK, "%.16s: OI scrub post, result = %d\n",
737 osd_scrub2name(scrub), result);
739 down_write(&scrub->os_rwsem);
740 spin_lock(&scrub->os_lock);
741 thread_set_flags(&scrub->os_thread, SVC_STOPPING);
742 spin_unlock(&scrub->os_lock);
743 if (scrub->os_new_checked > 0) {
744 sf->sf_items_checked += scrub->os_new_checked;
745 scrub->os_new_checked = 0;
746 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
748 sf->sf_time_last_checkpoint = cfs_time_current_sec();
750 struct osd_device *dev =
751 container_of0(scrub, struct osd_device, od_scrub);
753 dev->od_igif_inoi = 1;
754 dev->od_check_ff = 0;
755 sf->sf_status = SS_COMPLETED;
756 if (!(sf->sf_param & SP_DRYRUN)) {
757 memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
758 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
759 SF_UPGRADE | SF_AUTO);
761 sf->sf_time_last_complete = sf->sf_time_last_checkpoint;
762 sf->sf_success_count++;
763 } else if (result == 0) {
764 if (scrub->os_paused)
765 sf->sf_status = SS_PAUSED;
767 sf->sf_status = SS_STOPPED;
769 sf->sf_status = SS_FAILED;
771 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
772 scrub->os_time_last_checkpoint);
773 result = osd_scrub_file_store(scrub);
774 up_write(&scrub->os_rwsem);
779 /* iteration engine */
781 struct osd_iit_param {
782 struct super_block *sb;
783 struct buffer_head *bitmap;
789 typedef int (*osd_iit_next_policy)(struct osd_thread_info *info,
790 struct osd_device *dev,
791 struct osd_iit_param *param,
792 struct osd_idmap_cache **oic,
795 typedef int (*osd_iit_exec_policy)(struct osd_thread_info *info,
796 struct osd_device *dev,
797 struct osd_iit_param *param,
798 struct osd_idmap_cache *oic,
799 bool *noslot, int rc);
801 static int osd_iit_next(struct osd_iit_param *param, __u32 *pos)
803 param->offset = ldiskfs_find_next_bit(param->bitmap->b_data,
804 LDISKFS_INODES_PER_GROUP(param->sb), param->offset);
805 if (param->offset >= LDISKFS_INODES_PER_GROUP(param->sb)) {
806 *pos = 1 + (param->bg+1) * LDISKFS_INODES_PER_GROUP(param->sb);
807 return SCRUB_NEXT_BREAK;
809 *pos = param->gbase + param->offset;
815 * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST
816 * \retval 0: FID-on-MDT
818 static int osd_scrub_check_local_fldb(struct osd_thread_info *info,
819 struct osd_device *dev,
822 /* XXX: The initial OI scrub will scan the top level /O to generate
823 * a small local FLDB according to the <seq>. If the given FID
824 * is in the local FLDB, then it is FID-on-OST; otherwise it's
825 * quite possible for FID-on-MDT. */
827 return SCRUB_NEXT_OSTOBJ_OLD;
832 static int osd_scrub_get_fid(struct osd_thread_info *info,
833 struct osd_device *dev, struct inode *inode,
834 struct lu_fid *fid, bool scrub)
836 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
838 bool has_lma = false;
840 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
843 if (lma->lma_compat & LMAC_NOT_IN_OI ||
844 lma->lma_incompat & LMAI_AGENT)
845 return SCRUB_NEXT_CONTINUE;
847 *fid = lma->lma_self_fid;
851 if (lma->lma_compat & LMAC_FID_ON_OST)
852 return SCRUB_NEXT_OSTOBJ;
854 if (fid_is_idif(fid))
855 return SCRUB_NEXT_OSTOBJ_OLD;
857 /* For local object. */
858 if (fid_is_internal(fid))
861 /* For external visible MDT-object with non-normal FID. */
862 if (fid_is_namespace_visible(fid) && !fid_is_norm(fid))
865 /* For the object with normal FID, it may be MDT-object,
866 * or may be 2.4 OST-object, need further distinguish.
867 * Fall through to next section. */
870 if (rc == -ENODATA || rc == 0) {
871 rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid);
874 /* It is old 2.x (x <= 3) or 1.8 OST-object. */
875 rc = SCRUB_NEXT_OSTOBJ_OLD;
881 /* It is FID-on-OST, but we do not know how
882 * to generate its FID, ignore it directly. */
883 rc = SCRUB_NEXT_CONTINUE;
885 /* It is 2.4 OST-object. */
886 rc = SCRUB_NEXT_OSTOBJ_OLD;
894 if (dev->od_scrub.os_convert_igif) {
895 lu_igif_build(fid, inode->i_ino,
896 inode->i_generation);
898 rc = SCRUB_NEXT_NOLMA;
902 /* It may be FID-on-OST, or may be FID for
903 * non-MDT0, anyway, we do not know how to
904 * generate its FID, ignore it directly. */
905 rc = SCRUB_NEXT_CONTINUE;
910 /* For OI scrub case only: the object has LMA but has no ff
911 * (or ff crashed). It may be MDT-object, may be OST-object
912 * with crashed ff. The last check is local FLDB. */
913 rc = osd_scrub_check_local_fldb(info, dev, fid);
919 static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
920 struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
921 struct super_block *sb, bool scrub)
927 /* Not handle the backend root object and agent parent object.
928 * They are neither visible to namespace nor have OI mappings. */
929 if (unlikely(pos == osd_sb(dev)->s_root->d_inode->i_ino ||
930 pos == osd_remote_parent_ino(dev)))
931 RETURN(SCRUB_NEXT_CONTINUE);
933 osd_id_gen(lid, pos, OSD_OII_NOGEN);
934 inode = osd_iget(info, dev, lid);
937 /* The inode may be removed after bitmap searching, or the
938 * file is new created without inode initialized yet. */
939 if (rc == -ENOENT || rc == -ESTALE)
940 RETURN(SCRUB_NEXT_CONTINUE);
942 CDEBUG(D_LFSCK, "%.16s: fail to read inode, ino# = %u: "
943 "rc = %d\n", LDISKFS_SB(sb)->s_es->s_volume_name,
949 ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
950 /* Only skip it for the first OI scrub accessing. */
951 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
952 GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
955 rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
964 static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
965 struct osd_iit_param *param,
966 struct osd_idmap_cache **oic, const bool noslot)
968 struct osd_scrub *scrub = &dev->od_scrub;
969 struct ptlrpc_thread *thread = &scrub->os_thread;
971 struct osd_inode_id *lid;
974 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
975 struct l_wait_info lwi;
977 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
978 if (likely(lwi.lwi_timeout > 0))
979 l_wait_event(thread->t_ctl_waitq,
980 !list_empty(&scrub->os_inconsistent_items) ||
981 !thread_is_running(thread),
985 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
986 spin_lock(&scrub->os_lock);
987 thread_set_flags(thread, SVC_STOPPING);
988 spin_unlock(&scrub->os_lock);
989 return SCRUB_NEXT_CRASH;
992 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
993 return SCRUB_NEXT_FATAL;
995 if (unlikely(!thread_is_running(thread)))
996 return SCRUB_NEXT_EXIT;
998 if (!list_empty(&scrub->os_inconsistent_items)) {
999 struct osd_inconsistent_item *oii;
1001 oii = list_entry(scrub->os_inconsistent_items.next,
1002 struct osd_inconsistent_item, oii_list);
1003 *oic = &oii->oii_cache;
1004 scrub->os_in_prior = 1;
1009 return SCRUB_NEXT_WAIT;
1011 rc = osd_iit_next(param, &scrub->os_pos_current);
1015 *oic = &scrub->os_oic;
1016 fid = &(*oic)->oic_fid;
1017 lid = &(*oic)->oic_lid;
1018 rc = osd_iit_iget(info, dev, fid, lid,
1019 scrub->os_pos_current, param->sb, true);
1023 static int osd_preload_next(struct osd_thread_info *info,
1024 struct osd_device *dev, struct osd_iit_param *param,
1025 struct osd_idmap_cache **oic, const bool noslot)
1027 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1028 struct osd_scrub *scrub;
1029 struct ptlrpc_thread *thread;
1032 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1036 scrub = &dev->od_scrub;
1037 thread = &scrub->os_thread;
1038 if (thread_is_running(thread) &&
1039 ooc->ooc_pos_preload >= scrub->os_pos_current)
1040 return SCRUB_NEXT_EXIT;
1042 rc = osd_iit_iget(info, dev,
1043 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1044 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1045 ooc->ooc_pos_preload, param->sb, false);
1046 /* If succeed, it needs to move forward; otherwise up layer LFSCK may
1047 * ignore the failure, so it still need to skip the inode next time. */
1048 ooc->ooc_pos_preload = param->gbase + ++(param->offset);
1053 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1055 spin_lock(&scrub->os_lock);
1056 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1057 !list_empty(&scrub->os_inconsistent_items) ||
1058 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1059 scrub->os_waiting = 0;
1061 scrub->os_waiting = 1;
1062 spin_unlock(&scrub->os_lock);
1064 return !scrub->os_waiting;
1067 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1068 struct osd_iit_param *param,
1069 struct osd_idmap_cache *oic, bool *noslot, int rc)
1071 struct l_wait_info lwi = { 0 };
1072 struct osd_scrub *scrub = &dev->od_scrub;
1073 struct scrub_file *sf = &scrub->os_file;
1074 struct ptlrpc_thread *thread = &scrub->os_thread;
1075 struct osd_otable_it *it = dev->od_otable_it;
1076 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1079 case SCRUB_NEXT_CONTINUE:
1081 case SCRUB_NEXT_WAIT:
1083 case SCRUB_NEXT_NOSCRUB:
1084 down_write(&scrub->os_rwsem);
1085 scrub->os_new_checked++;
1086 sf->sf_items_noscrub++;
1087 up_write(&scrub->os_rwsem);
1091 rc = osd_scrub_check_update(info, dev, oic, rc);
1095 rc = osd_scrub_checkpoint(scrub);
1097 CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: "
1098 "rc = %d\n", osd_scrub2name(scrub),
1099 scrub->os_pos_current, rc);
1100 /* Continue, as long as the scrub itself can go ahead. */
1103 if (scrub->os_in_prior) {
1104 scrub->os_in_prior = 0;
1109 scrub->os_pos_current = param->gbase + ++(param->offset);
1112 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1113 ooc->ooc_pos_preload < scrub->os_pos_current) {
1114 spin_lock(&scrub->os_lock);
1115 it->ooi_waiting = 0;
1116 wake_up_all(&thread->t_ctl_waitq);
1117 spin_unlock(&scrub->os_lock);
1120 if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
1123 if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) {
1129 l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
1132 if (ooc != NULL && osd_scrub_has_window(scrub, ooc))
1139 static int osd_preload_exec(struct osd_thread_info *info,
1140 struct osd_device *dev, struct osd_iit_param *param,
1141 struct osd_idmap_cache *oic, bool *noslot, int rc)
1143 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1146 ooc->ooc_cached_items++;
1147 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1148 ~OSD_OTABLE_IT_CACHE_MASK;
1150 return rc > 0 ? 0 : rc;
1153 #define SCRUB_IT_ALL 1
1154 #define SCRUB_IT_CRASH 2
1156 static void osd_scrub_join(struct osd_device *dev, __u32 flags,
1159 struct osd_scrub *scrub = &dev->od_scrub;
1160 struct ptlrpc_thread *thread = &scrub->os_thread;
1161 struct scrub_file *sf = &scrub->os_file;
1165 LASSERT(!(flags & SS_AUTO_PARTIAL));
1167 down_write(&scrub->os_rwsem);
1168 scrub->os_in_join = 1;
1169 if (flags & SS_SET_FAILOUT)
1170 sf->sf_param |= SP_FAILOUT;
1171 else if (flags & SS_CLEAR_FAILOUT)
1172 sf->sf_param &= ~SP_FAILOUT;
1174 if (flags & SS_SET_DRYRUN)
1175 sf->sf_param |= SP_DRYRUN;
1176 else if (flags & SS_CLEAR_DRYRUN)
1177 sf->sf_param &= ~SP_DRYRUN;
1179 if (flags & SS_RESET) {
1180 osd_scrub_file_reset(scrub,
1181 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1182 inconsistent ? SF_INCONSISTENT : 0);
1183 sf->sf_status = SS_SCANNING;
1186 if (flags & SS_AUTO_FULL) {
1187 sf->sf_flags |= SF_AUTO;
1188 scrub->os_full_speed = 1;
1191 if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
1192 scrub->os_full_speed = 1;
1194 scrub->os_full_speed = 0;
1196 scrub->os_new_checked = 0;
1197 if (sf->sf_pos_last_checkpoint != 0)
1198 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
1200 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
1202 scrub->os_pos_current = sf->sf_pos_latest_start;
1203 sf->sf_time_latest_start = cfs_time_current_sec();
1204 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
1205 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
1206 rc = osd_scrub_file_store(scrub);
1208 CDEBUG(D_LFSCK, "%.16s: fail to store scrub file when join "
1209 "the OI scrub: rc = %d\n", osd_scrub2name(scrub), rc);
1211 spin_lock(&scrub->os_lock);
1212 scrub->os_waiting = 0;
1213 scrub->os_paused = 0;
1214 scrub->os_partial_scan = 0;
1215 scrub->os_in_join = 0;
1216 scrub->os_full_scrub = 0;
1217 spin_unlock(&scrub->os_lock);
1218 wake_up_all(&thread->t_ctl_waitq);
1219 up_write(&scrub->os_rwsem);
1224 static int osd_inode_iteration(struct osd_thread_info *info,
1225 struct osd_device *dev, __u32 max, bool preload)
1227 struct osd_scrub *scrub = &dev->od_scrub;
1228 struct ptlrpc_thread *thread = &scrub->os_thread;
1229 struct scrub_file *sf = &scrub->os_file;
1230 osd_iit_next_policy next;
1231 osd_iit_exec_policy exec;
1234 struct osd_iit_param param = { NULL };
1235 struct l_wait_info lwi = { 0 };
1241 param.sb = osd_sb(dev);
1245 while (scrub->os_partial_scan && !scrub->os_in_join) {
1246 struct osd_idmap_cache *oic = NULL;
1248 rc = osd_scrub_next(info, dev, ¶m, &oic, noslot);
1250 case SCRUB_NEXT_EXIT:
1252 case SCRUB_NEXT_CRASH:
1253 RETURN(SCRUB_IT_CRASH);
1254 case SCRUB_NEXT_FATAL:
1256 case SCRUB_NEXT_WAIT: {
1257 struct kstatfs *ksfs = &info->oti_ksfs;
1260 if (dev->od_full_scrub_ratio == OFSR_NEVER ||
1261 unlikely(sf->sf_items_updated_prior == 0))
1264 if (dev->od_full_scrub_ratio == OFSR_DIRECTLY ||
1265 scrub->os_full_scrub) {
1266 osd_scrub_join(dev, SS_AUTO_FULL | SS_RESET,
1271 rc = param.sb->s_op->statfs(param.sb->s_root, ksfs);
1273 __u64 used = ksfs->f_files - ksfs->f_ffree;
1275 do_div(used, sf->sf_items_updated_prior);
1276 /* If we hit too much inconsistent OI
1277 * mappings during the partial scan,
1278 * then scan the device completely. */
1279 if (used < dev->od_full_scrub_ratio) {
1281 SS_AUTO_FULL | SS_RESET, true);
1287 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) &&
1291 saved_flags = sf->sf_flags;
1292 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
1293 SF_UPGRADE | SF_AUTO);
1294 sf->sf_status = SS_COMPLETED;
1295 l_wait_event(thread->t_ctl_waitq,
1296 !thread_is_running(thread) ||
1297 !scrub->os_partial_scan ||
1298 scrub->os_in_join ||
1299 !list_empty(&scrub->os_inconsistent_items),
1301 sf->sf_flags = saved_flags;
1302 sf->sf_status = SS_SCANNING;
1304 if (unlikely(!thread_is_running(thread)))
1307 if (!scrub->os_partial_scan || scrub->os_in_join)
1313 LASSERTF(rc == 0, "rc = %d\n", rc);
1315 osd_scrub_exec(info, dev, ¶m, oic, &noslot, rc);
1322 l_wait_event(thread->t_ctl_waitq,
1323 !thread_is_running(thread) || !scrub->os_in_join,
1326 if (unlikely(!thread_is_running(thread)))
1332 next = osd_scrub_next;
1333 exec = osd_scrub_exec;
1334 pos = &scrub->os_pos_current;
1335 count = &scrub->os_new_checked;
1337 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1339 next = osd_preload_next;
1340 exec = osd_preload_exec;
1341 pos = &ooc->ooc_pos_preload;
1342 count = &ooc->ooc_cached_items;
1344 limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
1346 while (*pos <= limit && *count < max) {
1347 struct osd_idmap_cache *oic = NULL;
1348 struct ldiskfs_group_desc *desc;
1350 param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
1351 desc = ldiskfs_get_group_desc(param.sb, param.bg, NULL);
1355 ldiskfs_lock_group(param.sb, param.bg);
1356 if (desc->bg_flags & cpu_to_le16(LDISKFS_BG_INODE_UNINIT)) {
1357 ldiskfs_unlock_group(param.sb, param.bg);
1358 *pos = 1 + (param.bg + 1) *
1359 LDISKFS_INODES_PER_GROUP(param.sb);
1362 ldiskfs_unlock_group(param.sb, param.bg);
1364 param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
1365 param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1366 param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
1367 if (param.bitmap == NULL) {
1368 CDEBUG(D_LFSCK, "%.16s: fail to read bitmap for %u, "
1369 "scrub will stop, urgent mode\n",
1370 osd_scrub2name(scrub), (__u32)param.bg);
1374 while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
1377 ldiskfs_itable_unused_count(param.sb, desc) >
1378 LDISKFS_INODES_PER_GROUP(param.sb))
1381 rc = next(info, dev, ¶m, &oic, noslot);
1383 case SCRUB_NEXT_BREAK:
1385 case SCRUB_NEXT_EXIT:
1386 brelse(param.bitmap);
1388 case SCRUB_NEXT_CRASH:
1389 brelse(param.bitmap);
1390 RETURN(SCRUB_IT_CRASH);
1391 case SCRUB_NEXT_FATAL:
1392 brelse(param.bitmap);
1396 rc = exec(info, dev, ¶m, oic, &noslot, rc);
1398 brelse(param.bitmap);
1404 brelse(param.bitmap);
1408 RETURN(SCRUB_IT_ALL);
1412 static int osd_otable_it_preload(const struct lu_env *env,
1413 struct osd_otable_it *it)
1415 struct osd_device *dev = it->ooi_dev;
1416 struct osd_scrub *scrub = &dev->od_scrub;
1417 struct osd_otable_cache *ooc = &it->ooi_cache;
1421 rc = osd_inode_iteration(osd_oti_get(env), dev,
1422 OSD_OTABLE_IT_CACHE_SIZE, true);
1423 if (rc == SCRUB_IT_ALL)
1424 it->ooi_all_cached = 1;
1426 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1427 spin_lock(&scrub->os_lock);
1428 scrub->os_waiting = 0;
1429 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1430 spin_unlock(&scrub->os_lock);
1433 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1436 static int osd_scrub_main(void *args)
1439 struct osd_device *dev = (struct osd_device *)args;
1440 struct osd_scrub *scrub = &dev->od_scrub;
1441 struct ptlrpc_thread *thread = &scrub->os_thread;
1445 rc = lu_env_init(&env, LCT_LOCAL);
1447 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n",
1448 osd_scrub2name(scrub), rc);
1452 rc = osd_scrub_prep(dev);
1454 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n",
1455 osd_scrub2name(scrub), rc);
1459 if (!scrub->os_full_speed && !scrub->os_partial_scan) {
1460 struct l_wait_info lwi = { 0 };
1461 struct osd_otable_it *it = dev->od_otable_it;
1462 struct osd_otable_cache *ooc = &it->ooi_cache;
1464 l_wait_event(thread->t_ctl_waitq,
1465 it->ooi_user_ready || !thread_is_running(thread),
1467 if (unlikely(!thread_is_running(thread)))
1470 scrub->os_pos_current = ooc->ooc_pos_preload;
1473 CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n",
1474 osd_scrub2name(scrub), scrub->os_start_flags,
1475 scrub->os_pos_current);
1477 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1478 if (unlikely(rc == SCRUB_IT_CRASH))
1479 GOTO(out, rc = -EINVAL);
1483 osd_scrub_post(scrub, rc);
1484 CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n",
1485 osd_scrub2name(scrub), scrub->os_pos_current, rc);
1488 while (!list_empty(&scrub->os_inconsistent_items)) {
1489 struct osd_inconsistent_item *oii;
1491 oii = list_entry(scrub->os_inconsistent_items.next,
1492 struct osd_inconsistent_item, oii_list);
1493 list_del_init(&oii->oii_list);
1499 spin_lock(&scrub->os_lock);
1500 thread_set_flags(thread, SVC_STOPPED);
1501 wake_up_all(&thread->t_ctl_waitq);
1502 spin_unlock(&scrub->os_lock);
1506 /* initial OI scrub */
1508 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1509 struct dentry *, filldir_t filldir);
1511 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1512 loff_t offset, __u64 ino, unsigned d_type);
1513 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1514 loff_t offset, __u64 ino, unsigned d_type);
1515 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1516 loff_t offset, __u64 ino, unsigned d_type);
1519 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1520 struct dentry *dentry, filldir_t filldir);
1522 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1523 struct dentry *dentry, filldir_t filldir);
1526 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1527 struct dentry *dentry, filldir_t filldir);
1530 OLF_SCAN_SUBITEMS = 0x0001,
1531 OLF_HIDE_FID = 0x0002,
1532 OLF_SHOW_NAME = 0x0004,
1538 struct lu_fid olm_fid;
1540 scandir_t olm_scandir;
1541 filldir_t olm_filldir;
1544 /* Add the new introduced local files in the list in the future. */
1545 static const struct osd_lf_map osd_lf_maps[] = {
1547 { CATLIST, { FID_SEQ_LOCAL_FILE, LLOG_CATALOGS_OID, 0 }, OLF_SHOW_NAME,
1551 { MOUNT_CONFIGS_DIR, { FID_SEQ_LOCAL_FILE, MGS_CONFIGS_OID, 0 },
1552 OLF_SCAN_SUBITEMS, osd_ios_general_scan,
1553 osd_ios_varfid_fill },
1555 /* NIDTBL_VERSIONS */
1556 { MGS_NIDTBL_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1557 osd_ios_general_scan, osd_ios_varfid_fill },
1560 { "PENDING", { 0, 0, 0 }, 0, NULL, NULL },
1563 { "ROOT", { FID_SEQ_ROOT, FID_OID_ROOT, 0 },
1564 OLF_SCAN_SUBITEMS | OLF_HIDE_FID, osd_ios_ROOT_scan, NULL },
1566 /* changelog_catalog */
1567 { CHANGELOG_CATALOG, { 0, 0, 0 }, 0, NULL, NULL },
1569 /* changelog_users */
1570 { CHANGELOG_USERS, { 0, 0, 0 }, 0, NULL, NULL },
1573 { "fld", { FID_SEQ_LOCAL_FILE, FLD_INDEX_OID, 0 }, OLF_SHOW_NAME,
1577 { LAST_RCVD, { FID_SEQ_LOCAL_FILE, LAST_RECV_OID, 0 }, OLF_SHOW_NAME,
1580 /* lfsck_bookmark */
1581 { "lfsck_bookmark", { 0, 0, 0 }, 0, NULL, NULL },
1584 { LOV_OBJID, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OID, 0 }, OLF_SHOW_NAME,
1588 { LOV_OBJSEQ, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OSEQ, 0 },
1589 OLF_SHOW_NAME, NULL, NULL },
1592 { QMT_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1593 osd_ios_general_scan, osd_ios_varfid_fill },
1596 { QSD_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1597 osd_ios_general_scan, osd_ios_varfid_fill },
1600 { "seq_ctl", { FID_SEQ_LOCAL_FILE, FID_SEQ_CTL_OID, 0 },
1601 OLF_SHOW_NAME, NULL, NULL },
1604 { "seq_srv", { FID_SEQ_LOCAL_FILE, FID_SEQ_SRV_OID, 0 },
1605 OLF_SHOW_NAME, NULL, NULL },
1608 { HEALTH_CHECK, { FID_SEQ_LOCAL_FILE, OFD_HEALTH_CHECK_OID, 0 },
1609 OLF_SHOW_NAME, NULL, NULL },
1611 /* lfsck_namespace */
1612 { "lfsck_namespace", { 0, 0, 0 }, 0, NULL, NULL },
1614 /* OBJECTS, upgrade from old device */
1615 { OBJECTS, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, osd_ios_OBJECTS_scan, NULL },
1617 /* lquota_v2.user, upgrade from old device */
1618 { "lquota_v2.user", { 0, 0, 0 }, 0, NULL, NULL },
1620 /* lquota_v2.group, upgrade from old device */
1621 { "lquota_v2.group", { 0, 0, 0 }, 0, NULL, NULL },
1623 /* LAST_GROUP, upgrade from old device */
1624 { "LAST_GROUP", { FID_SEQ_LOCAL_FILE, OFD_LAST_GROUP_OID, 0 },
1625 OLF_SHOW_NAME, NULL, NULL },
1627 /* SLAVE_LOG, llog for destroy slave stripes of striped dir */
1628 { "SLAVE_LOG", { FID_SEQ_LOCAL_FILE, SLAVE_LLOG_CATALOGS_OID, 0 },
1629 OLF_SHOW_NAME, NULL, NULL },
1632 { "lost+found", { FID_SEQ_LOCAL_FILE, OSD_LPF_OID, 0 },
1633 OLF_SCAN_SUBITEMS, osd_ios_general_scan, osd_ios_lf_fill },
1635 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1638 /* Add the new introduced files under .lustre/ in the list in the future. */
1639 static const struct osd_lf_map osd_dl_maps[] = {
1641 { "fid", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_OBF, 0 }, 0,
1644 /* .lustre/lost+found */
1645 { "lost+found", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_LPF, 0 }, 0,
1648 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1651 struct osd_ios_item {
1652 struct list_head oii_list;
1653 struct dentry *oii_dentry;
1654 scandir_t oii_scandir;
1655 filldir_t oii_filldir;
1658 struct osd_ios_filldir_buf {
1659 #ifdef HAVE_DIR_CONTEXT
1660 /* please keep it as first member */
1661 struct dir_context ctx;
1663 struct osd_thread_info *oifb_info;
1664 struct osd_device *oifb_dev;
1665 struct dentry *oifb_dentry;
1668 static inline struct dentry *
1669 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1671 struct dentry *dentry;
1673 dentry = ll_lookup_one_len(name, parent, namelen);
1674 if (!IS_ERR(dentry) && dentry->d_inode == NULL) {
1676 return ERR_PTR(-ENOENT);
1683 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1684 scandir_t scandir, filldir_t filldir)
1686 struct osd_ios_item *item;
1689 OBD_ALLOC_PTR(item);
1693 INIT_LIST_HEAD(&item->oii_list);
1694 item->oii_dentry = dget(dentry);
1695 item->oii_scandir = scandir;
1696 item->oii_filldir = filldir;
1697 list_add_tail(&item->oii_list, &dev->od_ios_list);
1703 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
1705 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
1706 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
1707 * reference the inode, or fixed if it is missing or references another inode.
1710 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
1711 struct inode *inode, const struct lu_fid *fid, int flags)
1713 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1714 struct osd_inode_id *id = &info->oti_id;
1715 struct osd_inode_id *id2 = &info->oti_id2;
1716 struct osd_scrub *scrub = &dev->od_scrub;
1717 struct scrub_file *sf = &scrub->os_file;
1722 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
1723 if (rc != 0 && rc != -ENODATA) {
1724 CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
1725 "rc = %d\n", osd_name(dev), rc);
1730 osd_id_gen(id, inode->i_ino, inode->i_generation);
1731 if (rc == -ENODATA) {
1732 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID)
1733 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
1736 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
1738 CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
1739 "scrub: rc = %d\n", osd_name(dev), rc);
1744 if (lma->lma_compat & LMAC_NOT_IN_OI)
1747 tfid = lma->lma_self_fid;
1750 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
1755 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1756 DTO_INDEX_INSERT, true, 0);
1763 if (osd_id_eq_strict(id, id2))
1766 if (!(sf->sf_flags & SF_INCONSISTENT)) {
1767 osd_scrub_file_reset(scrub,
1768 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1770 rc = osd_scrub_file_store(scrub);
1775 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1776 DTO_INDEX_UPDATE, true, 0);
1784 * It scans the /lost+found, and for the OST-object (with filter_fid
1785 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
1787 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1788 loff_t offset, __u64 ino, unsigned d_type)
1790 struct osd_ios_filldir_buf *fill_buf = buf;
1791 struct osd_thread_info *info = fill_buf->oifb_info;
1792 struct osd_device *dev = fill_buf->oifb_dev;
1793 struct lu_fid *fid = &info->oti_fid;
1794 struct osd_scrub *scrub = &dev->od_scrub;
1795 struct dentry *parent = fill_buf->oifb_dentry;
1796 struct dentry *child;
1797 struct inode *dir = parent->d_inode;
1798 struct inode *inode;
1802 /* skip any '.' started names */
1806 scrub->os_lf_scanned++;
1807 child = osd_ios_lookup_one_len(name, parent, namelen);
1808 if (IS_ERR(child)) {
1809 CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
1810 osd_name(dev), namelen, name, (int)PTR_ERR(child));
1814 inode = child->d_inode;
1815 if (S_ISDIR(inode->i_mode)) {
1816 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1819 CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
1820 "rc = %d\n", osd_name(dev), namelen, name, rc);
1824 if (!S_ISREG(inode->i_mode))
1827 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
1828 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
1829 rc = osd_obj_map_recover(info, dev, dir, child, fid);
1831 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
1832 "/lost+found.\n", namelen, name, PFID(fid));
1833 scrub->os_lf_repaired++;
1835 CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
1837 osd_name(dev), namelen, name, PFID(fid), rc);
1841 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
1842 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
1843 * can process them in furtuer. */
1849 scrub->os_lf_failed++;
1851 /* skip the failure to make the scanning to continue. */
1855 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1856 loff_t offset, __u64 ino, unsigned d_type)
1858 struct osd_ios_filldir_buf *fill_buf = buf;
1859 struct osd_device *dev = fill_buf->oifb_dev;
1860 struct dentry *child;
1864 /* skip any '.' started names */
1868 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1870 RETURN(PTR_ERR(child));
1872 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1874 if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
1875 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1876 osd_ios_varfid_fill);
1882 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1883 loff_t offset, __u64 ino, unsigned d_type)
1885 struct osd_ios_filldir_buf *fill_buf = buf;
1886 struct osd_device *dev = fill_buf->oifb_dev;
1887 const struct osd_lf_map *map;
1888 struct dentry *child;
1892 /* skip any '.' started names */
1896 for (map = osd_dl_maps; map->olm_name != NULL; map++) {
1897 if (strlen(map->olm_name) != namelen)
1900 if (strncmp(map->olm_name, name, namelen) == 0)
1904 if (map->olm_name == NULL)
1907 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1909 RETURN(PTR_ERR(child));
1911 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1912 &map->olm_fid, map->olm_flags);
1918 static int osd_ios_root_fill(void *buf, const char *name, int namelen,
1919 loff_t offset, __u64 ino, unsigned d_type)
1921 struct osd_ios_filldir_buf *fill_buf = buf;
1922 struct osd_device *dev = fill_buf->oifb_dev;
1923 const struct osd_lf_map *map;
1924 struct dentry *child;
1928 /* skip any '.' started names */
1932 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
1933 if (strlen(map->olm_name) != namelen)
1936 if (strncmp(map->olm_name, name, namelen) == 0)
1940 if (map->olm_name == NULL)
1943 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1945 RETURN(PTR_ERR(child));
1947 if (!(map->olm_flags & OLF_NO_OI))
1948 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1949 &map->olm_fid, map->olm_flags);
1950 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
1951 rc = osd_ios_new_item(dev, child, map->olm_scandir,
1959 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1960 struct dentry *dentry, filldir_t filldir)
1962 struct osd_ios_filldir_buf buf = {
1963 #ifdef HAVE_DIR_CONTEXT
1964 .ctx.actor = filldir,
1968 .oifb_dentry = dentry };
1969 struct file *filp = &info->oti_file;
1970 struct inode *inode = dentry->d_inode;
1971 const struct file_operations *fops = inode->i_fop;
1975 LASSERT(filldir != NULL);
1978 filp->f_dentry = dentry;
1979 filp->f_mode = FMODE_64BITHASH;
1980 filp->f_mapping = inode->i_mapping;
1982 filp->private_data = NULL;
1983 set_file_inode(filp, inode);
1985 #ifdef HAVE_DIR_CONTEXT
1986 buf.ctx.pos = filp->f_pos;
1987 rc = fops->iterate(filp, &buf.ctx);
1988 filp->f_pos = buf.ctx.pos;
1990 rc = fops->readdir(filp, &buf, filldir);
1992 fops->release(inode, filp);
1998 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1999 struct dentry *dentry, filldir_t filldir)
2001 struct osd_scrub *scrub = &dev->od_scrub;
2002 struct scrub_file *sf = &scrub->os_file;
2003 struct dentry *child;
2007 /* It is existing MDT0 device. We only allow the case of object without
2008 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
2009 * can generate IGIF mode FID for the object and related OI mapping. If
2010 * it is on other MDTs, then becuase file-level backup/restore, related
2011 * OI mapping may be invalid already, we do not know which is the right
2012 * FID for the object. We only allow IGIF objects to reside on the MDT0.
2014 * XXX: For the case of object on non-MDT0 device with neither LMA nor
2015 * "fid" xattr, then something crashed. We cannot re-generate the
2016 * FID directly, instead, the OI scrub will scan the OI structure
2017 * and try to re-generate the LMA from the OI mapping. But if the
2018 * OI mapping crashed or lost also, then we have to give up under
2019 * double failure cases. */
2020 scrub->os_convert_igif = 1;
2021 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
2022 strlen(dot_lustre_name));
2023 if (IS_ERR(child)) {
2024 rc = PTR_ERR(child);
2025 if (rc == -ENOENT) {
2026 /* It is 1.8 MDT device. */
2027 if (!(sf->sf_flags & SF_UPGRADE)) {
2028 osd_scrub_file_reset(scrub,
2029 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
2031 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2032 rc = osd_scrub_file_store(scrub);
2038 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
2039 * so the client will get IGIF for the ".lustre" object when
2042 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
2043 * it does not know whether there are some old clients cached
2044 * the ".lustre" IGIF during the upgrading. Two choices:
2046 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
2047 * It will allow the old connected clients to access the
2048 * ".lustre" with cached IGIF. But it will cause others
2049 * on the MDT failed to check "fid_is_dot_lustre()".
2051 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
2052 * for ".lustre" in spite of whether there are some clients
2053 * cached the ".lustre" IGIF or not. It enables the check
2054 * "fid_is_dot_lustre()" on the MDT, although it will cause
2055 * that the old connected clients cannot access the ".lustre"
2056 * with the cached IGIF.
2058 * Usually, it is rare case for the old connected clients
2059 * to access the ".lustre" with cached IGIF. So we prefer
2060 * to the solution 2). */
2061 rc = osd_ios_scan_one(info, dev, child->d_inode,
2062 &LU_DOT_LUSTRE_FID, 0);
2064 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2073 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
2074 struct dentry *dentry, filldir_t filldir)
2076 struct osd_scrub *scrub = &dev->od_scrub;
2077 struct scrub_file *sf = &scrub->os_file;
2078 struct dentry *child;
2082 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
2083 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2084 rc = osd_scrub_file_store(scrub);
2089 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
2090 if (!IS_ERR(child)) {
2091 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2094 rc = PTR_ERR(child);
2097 if (rc != 0 && rc != -ENOENT)
2100 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
2101 if (!IS_ERR(child)) {
2102 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2105 rc = PTR_ERR(child);
2114 static int osd_initial_OI_scrub(struct osd_thread_info *info,
2115 struct osd_device *dev)
2117 struct osd_ios_item *item = NULL;
2118 scandir_t scandir = osd_ios_general_scan;
2119 filldir_t filldir = osd_ios_root_fill;
2120 struct dentry *dentry = osd_sb(dev)->s_root;
2121 const struct osd_lf_map *map = osd_lf_maps;
2125 /* Lookup IGIF in OI by force for initial OI scrub. */
2126 dev->od_igif_inoi = 1;
2129 rc = scandir(info, dev, dentry, filldir);
2131 dput(item->oii_dentry);
2138 if (list_empty(&dev->od_ios_list))
2141 item = list_entry(dev->od_ios_list.next,
2142 struct osd_ios_item, oii_list);
2143 list_del_init(&item->oii_list);
2145 LASSERT(item->oii_scandir != NULL);
2146 scandir = item->oii_scandir;
2147 filldir = item->oii_filldir;
2148 dentry = item->oii_dentry;
2151 while (!list_empty(&dev->od_ios_list)) {
2152 item = list_entry(dev->od_ios_list.next,
2153 struct osd_ios_item, oii_list);
2154 list_del_init(&item->oii_list);
2155 dput(item->oii_dentry);
2162 /* There maybe the case that the object has been removed, but its OI
2163 * mapping is still in the OI file, such as the "CATALOGS" after MDT
2164 * file-level backup/restore. So here cleanup the stale OI mappings. */
2165 while (map->olm_name != NULL) {
2166 struct dentry *child;
2168 if (fid_is_zero(&map->olm_fid)) {
2173 child = osd_ios_lookup_one_len(map->olm_name,
2174 osd_sb(dev)->s_root,
2175 strlen(map->olm_name));
2178 else if (PTR_ERR(child) == -ENOENT)
2179 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
2180 NULL, DTO_INDEX_DELETE,
2188 char *osd_lf_fid2name(const struct lu_fid *fid)
2190 const struct osd_lf_map *map = osd_lf_maps;
2192 while (map->olm_name != NULL) {
2193 if (!lu_fid_eq(fid, &map->olm_fid)) {
2198 if (map->olm_flags & OLF_SHOW_NAME)
2199 return map->olm_name;
2207 /* OI scrub start/stop */
2209 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
2211 struct osd_scrub *scrub = &dev->od_scrub;
2212 struct ptlrpc_thread *thread = &scrub->os_thread;
2213 struct l_wait_info lwi = { 0 };
2214 struct task_struct *task;
2218 /* os_lock: sync status between stop and scrub thread */
2219 spin_lock(&scrub->os_lock);
2222 if (thread_is_running(thread)) {
2223 spin_unlock(&scrub->os_lock);
2224 if (!scrub->os_partial_scan || flags & SS_AUTO_PARTIAL)
2227 osd_scrub_join(dev, flags, false);
2228 spin_lock(&scrub->os_lock);
2229 if (!thread_is_running(thread))
2232 spin_unlock(&scrub->os_lock);
2236 if (unlikely(thread_is_stopping(thread))) {
2237 spin_unlock(&scrub->os_lock);
2238 l_wait_event(thread->t_ctl_waitq,
2239 thread_is_stopped(thread),
2241 spin_lock(&scrub->os_lock);
2244 spin_unlock(&scrub->os_lock);
2246 if (scrub->os_file.sf_status == SS_COMPLETED) {
2247 if (!(flags & SS_SET_FAILOUT))
2248 flags |= SS_CLEAR_FAILOUT;
2250 if (!(flags & SS_SET_DRYRUN))
2251 flags |= SS_CLEAR_DRYRUN;
2256 scrub->os_start_flags = flags;
2257 thread_set_flags(thread, 0);
2258 task = kthread_run(osd_scrub_main, dev, "OI_scrub");
2261 CERROR("%.16s: cannot start iteration thread: rc = %d\n",
2262 osd_scrub2name(scrub), rc);
2266 l_wait_event(thread->t_ctl_waitq,
2267 thread_is_running(thread) || thread_is_stopped(thread),
2273 int osd_scrub_start(struct osd_device *dev, __u32 flags)
2278 /* od_otable_mutex: prevent curcurrent start/stop */
2279 mutex_lock(&dev->od_otable_mutex);
2280 rc = do_osd_scrub_start(dev, flags);
2281 mutex_unlock(&dev->od_otable_mutex);
2283 RETURN(rc == -EALREADY ? 0 : rc);
2286 static void do_osd_scrub_stop(struct osd_scrub *scrub)
2288 struct ptlrpc_thread *thread = &scrub->os_thread;
2289 struct l_wait_info lwi = { 0 };
2291 /* os_lock: sync status between stop and scrub thread */
2292 spin_lock(&scrub->os_lock);
2293 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
2294 thread_set_flags(thread, SVC_STOPPING);
2295 spin_unlock(&scrub->os_lock);
2296 wake_up_all(&thread->t_ctl_waitq);
2297 l_wait_event(thread->t_ctl_waitq,
2298 thread_is_stopped(thread),
2300 /* Do not skip the last lock/unlock, which can guarantee that
2301 * the caller cannot return until the OI scrub thread exit. */
2302 spin_lock(&scrub->os_lock);
2304 spin_unlock(&scrub->os_lock);
2307 static void osd_scrub_stop(struct osd_device *dev)
2309 /* od_otable_mutex: prevent curcurrent start/stop */
2310 mutex_lock(&dev->od_otable_mutex);
2311 dev->od_scrub.os_paused = 1;
2312 do_osd_scrub_stop(&dev->od_scrub);
2313 mutex_unlock(&dev->od_otable_mutex);
2316 /* OI scrub setup/cleanup */
2318 static const char osd_scrub_name[] = "OI_scrub";
2320 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2322 struct osd_thread_info *info = osd_oti_get(env);
2323 struct osd_scrub *scrub = &dev->od_scrub;
2324 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2325 struct scrub_file *sf = &scrub->os_file;
2326 struct super_block *sb = osd_sb(dev);
2327 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2328 struct lvfs_run_ctxt saved;
2330 struct inode *inode;
2331 struct lu_fid *fid = &info->oti_fid;
2336 memset(scrub, 0, sizeof(*scrub));
2337 OBD_SET_CTXT_MAGIC(ctxt);
2338 ctxt->pwdmnt = dev->od_mnt;
2339 ctxt->pwd = dev->od_mnt->mnt_root;
2340 ctxt->fs = get_ds();
2342 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2343 init_rwsem(&scrub->os_rwsem);
2344 spin_lock_init(&scrub->os_lock);
2345 INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2347 push_ctxt(&saved, ctxt);
2348 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2350 pop_ctxt(&saved, ctxt);
2351 RETURN(PTR_ERR(filp));
2354 inode = filp->f_dentry->d_inode;
2355 /* 'What the @fid is' is not imporatant, because the object
2356 * has no OI mapping, and only is visible inside the OSD.*/
2357 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2358 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2360 filp_close(filp, NULL);
2361 pop_ctxt(&saved, ctxt);
2365 scrub->os_inode = igrab(inode);
2366 filp_close(filp, NULL);
2367 pop_ctxt(&saved, ctxt);
2369 rc = osd_scrub_file_load(scrub);
2370 if (rc == -ENOENT) {
2371 osd_scrub_file_init(scrub, es->s_uuid);
2372 /* If the "/O" dir does not exist when mount (indicated by
2373 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2374 * then it is quite probably that the device is a new one,
2375 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2377 * For the rare case that "/O" and "OI_scrub" both lost on
2378 * an old device, it can be found and cleared later.
2380 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2381 * need to check "filter_fid_old" and to convert it to
2382 * "filter_fid" for each object, and all the IGIF should
2383 * have their FID mapping in OI files already. */
2384 if (dev->od_maybe_new)
2385 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2387 } else if (rc != 0) {
2388 GOTO(cleanup_inode, rc);
2390 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2391 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2393 } else if (sf->sf_status == SS_SCANNING) {
2394 sf->sf_status = SS_CRASHED;
2399 if (sf->sf_pos_last_checkpoint != 0)
2400 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2402 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2405 rc = osd_scrub_file_store(scrub);
2407 GOTO(cleanup_inode, rc);
2410 /* Initialize OI files. */
2411 rc = osd_oi_init(info, dev);
2413 GOTO(cleanup_inode, rc);
2415 rc = osd_initial_OI_scrub(info, dev);
2417 GOTO(cleanup_oi, rc);
2419 if (sf->sf_flags & SF_UPGRADE ||
2420 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2421 sf->sf_success_count > 0)) {
2422 dev->od_igif_inoi = 0;
2423 dev->od_check_ff = dev->od_is_ost;
2425 dev->od_igif_inoi = 1;
2426 dev->od_check_ff = 0;
2429 if (sf->sf_flags & SF_INCONSISTENT)
2430 /* The 'od_igif_inoi' will be set under the
2432 * 1) new created system, or
2433 * 2) restored from file-level backup, or
2434 * 3) the upgrading completed.
2436 * The 'od_igif_inoi' may be cleared by OI scrub
2437 * later if found that the system is upgrading. */
2438 dev->od_igif_inoi = 1;
2440 if (!dev->od_noscrub &&
2441 ((sf->sf_status == SS_PAUSED) ||
2442 (sf->sf_status == SS_CRASHED &&
2443 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2444 SF_UPGRADE | SF_AUTO)) ||
2445 (sf->sf_status == SS_INIT &&
2446 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2448 rc = osd_scrub_start(dev, SS_AUTO_FULL);
2451 GOTO(cleanup_oi, rc);
2453 /* it is possible that dcache entries may keep objects after they are
2454 * deleted by OSD. While it looks safe this can cause object data to
2455 * stay until umount causing failures in tests calculating free space,
2456 * e.g. replay-ost-single. Since those dcache entries are not used
2457 * anymore let's just free them after use here */
2458 shrink_dcache_sb(sb);
2462 osd_oi_fini(info, dev);
2464 iput(scrub->os_inode);
2465 scrub->os_inode = NULL;
2470 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2472 struct osd_scrub *scrub = &dev->od_scrub;
2474 LASSERT(dev->od_otable_it == NULL);
2476 if (scrub->os_inode != NULL) {
2477 osd_scrub_stop(dev);
2478 iput(scrub->os_inode);
2479 scrub->os_inode = NULL;
2481 if (dev->od_oi_table != NULL)
2482 osd_oi_fini(osd_oti_get(env), dev);
2485 /* object table based iteration APIs */
2487 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2488 struct dt_object *dt, __u32 attr,
2489 struct lustre_capa *capa)
2491 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2492 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2493 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2494 struct osd_scrub *scrub = &dev->od_scrub;
2495 struct osd_otable_it *it;
2500 /* od_otable_mutex: prevent curcurrent init/fini */
2501 mutex_lock(&dev->od_otable_mutex);
2502 if (dev->od_otable_it != NULL)
2503 GOTO(out, it = ERR_PTR(-EALREADY));
2507 GOTO(out, it = ERR_PTR(-ENOMEM));
2509 dev->od_otable_it = it;
2511 it->ooi_cache.ooc_consumer_idx = -1;
2512 if (flags & DOIF_OUTUSED)
2513 it->ooi_used_outside = 1;
2515 if (flags & DOIF_RESET)
2518 if (valid & DOIV_ERROR_HANDLE) {
2519 if (flags & DOIF_FAILOUT)
2520 start |= SS_SET_FAILOUT;
2522 start |= SS_CLEAR_FAILOUT;
2525 if (valid & DOIV_DRYRUN) {
2526 if (flags & DOIF_DRYRUN)
2527 start |= SS_SET_DRYRUN;
2529 start |= SS_CLEAR_DRYRUN;
2532 rc = do_osd_scrub_start(dev, start & ~SS_AUTO_PARTIAL);
2533 if (rc < 0 && rc != -EALREADY) {
2534 dev->od_otable_it = NULL;
2536 GOTO(out, it = ERR_PTR(rc));
2539 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2544 mutex_unlock(&dev->od_otable_mutex);
2545 return (struct dt_it *)it;
2548 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2550 struct osd_otable_it *it = (struct osd_otable_it *)di;
2551 struct osd_device *dev = it->ooi_dev;
2553 /* od_otable_mutex: prevent curcurrent init/fini */
2554 mutex_lock(&dev->od_otable_mutex);
2555 do_osd_scrub_stop(&dev->od_scrub);
2556 LASSERT(dev->od_otable_it == it);
2558 dev->od_otable_it = NULL;
2559 mutex_unlock(&dev->od_otable_mutex);
2563 static int osd_otable_it_get(const struct lu_env *env,
2564 struct dt_it *di, const struct dt_key *key)
2569 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2574 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2576 spin_lock(&scrub->os_lock);
2577 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2578 scrub->os_waiting ||
2579 !thread_is_running(&scrub->os_thread))
2580 it->ooi_waiting = 0;
2582 it->ooi_waiting = 1;
2583 spin_unlock(&scrub->os_lock);
2585 return !it->ooi_waiting;
2588 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2590 struct osd_otable_it *it = (struct osd_otable_it *)di;
2591 struct osd_device *dev = it->ooi_dev;
2592 struct osd_scrub *scrub = &dev->od_scrub;
2593 struct osd_otable_cache *ooc = &it->ooi_cache;
2594 struct ptlrpc_thread *thread = &scrub->os_thread;
2595 struct l_wait_info lwi = { 0 };
2599 LASSERT(it->ooi_user_ready);
2602 if (!thread_is_running(thread) && !it->ooi_used_outside)
2605 if (ooc->ooc_cached_items > 0) {
2606 ooc->ooc_cached_items--;
2607 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
2608 ~OSD_OTABLE_IT_CACHE_MASK;
2612 if (it->ooi_all_cached) {
2613 l_wait_event(thread->t_ctl_waitq,
2614 !thread_is_running(thread),
2619 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
2620 spin_lock(&scrub->os_lock);
2621 scrub->os_waiting = 0;
2622 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2623 spin_unlock(&scrub->os_lock);
2626 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
2627 l_wait_event(thread->t_ctl_waitq,
2628 osd_otable_it_wakeup(scrub, it),
2631 if (!thread_is_running(thread) && !it->ooi_used_outside)
2634 rc = osd_otable_it_preload(env, it);
2641 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
2642 const struct dt_it *di)
2647 static int osd_otable_it_key_size(const struct lu_env *env,
2648 const struct dt_it *di)
2650 return sizeof(__u64);
2653 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
2654 struct dt_rec *rec, __u32 attr)
2656 struct osd_otable_it *it = (struct osd_otable_it *)di;
2657 struct osd_otable_cache *ooc = &it->ooi_cache;
2659 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
2661 /* Filter out Invald FID already. */
2662 LASSERTF(fid_is_sane((struct lu_fid *)rec),
2663 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
2664 PFID((struct lu_fid *)rec),
2665 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
2670 static __u64 osd_otable_it_store(const struct lu_env *env,
2671 const struct dt_it *di)
2673 struct osd_otable_it *it = (struct osd_otable_it *)di;
2674 struct osd_otable_cache *ooc = &it->ooi_cache;
2677 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
2678 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
2680 hash = ooc->ooc_pos_preload;
2685 * Set the OSD layer iteration start position as the specified hash.
2687 static int osd_otable_it_load(const struct lu_env *env,
2688 const struct dt_it *di, __u64 hash)
2690 struct osd_otable_it *it = (struct osd_otable_it *)di;
2691 struct osd_device *dev = it->ooi_dev;
2692 struct osd_otable_cache *ooc = &it->ooi_cache;
2693 struct osd_scrub *scrub = &dev->od_scrub;
2697 /* Forbid to set iteration position after iteration started. */
2698 if (it->ooi_user_ready)
2701 if (hash > OSD_OTABLE_MAX_HASH)
2702 hash = OSD_OTABLE_MAX_HASH;
2704 ooc->ooc_pos_preload = hash;
2705 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
2706 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
2708 it->ooi_user_ready = 1;
2709 if (!scrub->os_full_speed)
2710 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2712 /* Unplug OSD layer iteration by the first next() call. */
2713 rc = osd_otable_it_next(env, (struct dt_it *)it);
2718 static int osd_otable_it_key_rec(const struct lu_env *env,
2719 const struct dt_it *di, void *key_rec)
2724 const struct dt_index_operations osd_otable_ops = {
2726 .init = osd_otable_it_init,
2727 .fini = osd_otable_it_fini,
2728 .get = osd_otable_it_get,
2729 .put = osd_otable_it_put,
2730 .next = osd_otable_it_next,
2731 .key = osd_otable_it_key,
2732 .key_size = osd_otable_it_key_size,
2733 .rec = osd_otable_it_rec,
2734 .store = osd_otable_it_store,
2735 .load = osd_otable_it_load,
2736 .key_rec = osd_otable_it_key_rec,
2740 /* high priority inconsistent items list APIs */
2742 #define SCRUB_BAD_OIMAP_DECAY_INTERVAL 60
2744 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
2747 struct osd_inconsistent_item *oii;
2748 struct osd_scrub *scrub = &dev->od_scrub;
2749 struct ptlrpc_thread *thread = &scrub->os_thread;
2754 if (unlikely(oii == NULL))
2757 INIT_LIST_HEAD(&oii->oii_list);
2758 oii->oii_cache = *oic;
2759 oii->oii_insert = insert;
2761 if (scrub->os_partial_scan) {
2762 __u64 now = cfs_time_current_sec();
2764 /* If there haven't been errors in a long time,
2765 * decay old count until either the errors are
2766 * gone or we reach the current interval. */
2767 while (unlikely(scrub->os_bad_oimap_count > 0 &&
2768 scrub->os_bad_oimap_time +
2769 SCRUB_BAD_OIMAP_DECAY_INTERVAL < now)) {
2770 scrub->os_bad_oimap_count >>= 1;
2771 scrub->os_bad_oimap_time +=
2772 SCRUB_BAD_OIMAP_DECAY_INTERVAL;
2775 scrub->os_bad_oimap_time = now;
2776 if (++scrub->os_bad_oimap_count >
2777 dev->od_full_scrub_threshold_rate)
2778 scrub->os_full_scrub = 1;
2781 spin_lock(&scrub->os_lock);
2782 if (unlikely(!thread_is_running(thread))) {
2783 spin_unlock(&scrub->os_lock);
2788 if (list_empty(&scrub->os_inconsistent_items))
2790 list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
2791 spin_unlock(&scrub->os_lock);
2794 wake_up_all(&thread->t_ctl_waitq);
2799 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
2800 struct osd_inode_id *id)
2802 struct osd_scrub *scrub = &dev->od_scrub;
2803 struct osd_inconsistent_item *oii;
2806 spin_lock(&scrub->os_lock);
2807 list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
2808 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
2809 *id = oii->oii_cache.oic_lid;
2810 spin_unlock(&scrub->os_lock);
2814 spin_unlock(&scrub->os_lock);
2821 static const char *scrub_status_names[] = {
2832 static const char *scrub_flags_names[] = {
2840 static const char *scrub_param_names[] = {
2846 static int scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
2853 rc = seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
2857 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
2860 rc = seq_printf(m, "%s%c", names[i],
2861 bits != 0 ? ',' : '\n');
2869 static int scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
2874 rc = seq_printf(m, "%s: "LPU64" seconds\n", prefix,
2875 cfs_time_current_sec() - time);
2877 rc = seq_printf(m, "%s: N/A\n", prefix);
2881 static int scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
2886 rc = seq_printf(m, "%s: "LPU64"\n", prefix, pos);
2888 rc = seq_printf(m, "%s: N/A\n", prefix);
2892 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
2894 struct osd_scrub *scrub = &dev->od_scrub;
2895 struct scrub_file *sf = &scrub->os_file;
2900 down_read(&scrub->os_rwsem);
2901 rc = seq_printf(m, "name: OI_scrub\n"
2905 sf->sf_magic, (int)sf->sf_oi_count,
2906 scrub_status_names[sf->sf_status]);
2910 rc = scrub_bits_dump(m, sf->sf_flags, scrub_flags_names,
2915 rc = scrub_bits_dump(m, sf->sf_param, scrub_param_names,
2920 rc = scrub_time_dump(m, sf->sf_time_last_complete,
2921 "time_since_last_completed");
2925 rc = scrub_time_dump(m, sf->sf_time_latest_start,
2926 "time_since_latest_start");
2930 rc = scrub_time_dump(m, sf->sf_time_last_checkpoint,
2931 "time_since_last_checkpoint");
2935 rc = scrub_pos_dump(m, sf->sf_pos_latest_start,
2936 "latest_start_position");
2940 rc = scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
2941 "last_checkpoint_position");
2945 rc = scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
2946 "first_failure_position");
2950 checked = sf->sf_items_checked + scrub->os_new_checked;
2951 rc = seq_printf(m, "checked: "LPU64"\n"
2952 "updated: "LPU64"\n"
2954 "prior_updated: "LPU64"\n"
2955 "noscrub: "LPU64"\n"
2957 "success_count: %u\n",
2958 checked, sf->sf_items_updated, sf->sf_items_failed,
2959 sf->sf_items_updated_prior, sf->sf_items_noscrub,
2960 sf->sf_items_igif, sf->sf_success_count);
2965 if (thread_is_running(&scrub->os_thread)) {
2966 cfs_duration_t duration = cfs_time_current() -
2967 scrub->os_time_last_checkpoint;
2968 __u64 new_checked = msecs_to_jiffies(scrub->os_new_checked *
2970 __u32 rtime = sf->sf_run_time +
2971 cfs_duration_sec(duration + HALF_SEC);
2974 do_div(new_checked, duration);
2976 do_div(speed, rtime);
2977 rc = seq_printf(m, "run_time: %u seconds\n"
2978 "average_speed: "LPU64" objects/sec\n"
2979 "real-time_speed: "LPU64" objects/sec\n"
2980 "current_position: %u\n"
2981 "lf_scanned: "LPU64"\n"
2982 "lf_reparied: "LPU64"\n"
2983 "lf_failed: "LPU64"\n",
2984 rtime, speed, new_checked, scrub->os_pos_current,
2985 scrub->os_lf_scanned, scrub->os_lf_repaired,
2986 scrub->os_lf_failed);
2988 if (sf->sf_run_time != 0)
2989 do_div(speed, sf->sf_run_time);
2990 rc = seq_printf(m, "run_time: %u seconds\n"
2991 "average_speed: "LPU64" objects/sec\n"
2992 "real-time_speed: N/A\n"
2993 "current_position: N/A\n"
2994 "lf_scanned: "LPU64"\n"
2995 "lf_reparied: "LPU64"\n"
2996 "lf_failed: "LPU64"\n",
2997 sf->sf_run_time, speed, scrub->os_lf_scanned,
2998 scrub->os_lf_repaired, scrub->os_lf_failed);
3002 up_read(&scrub->os_rwsem);
3003 return (rc < 0 ? -ENOSPC : 0);