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 l_wait_event(thread->t_ctl_waitq,
979 !list_empty(&scrub->os_inconsistent_items) ||
980 !thread_is_running(thread),
984 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
985 spin_lock(&scrub->os_lock);
986 thread_set_flags(thread, SVC_STOPPING);
987 spin_unlock(&scrub->os_lock);
988 return SCRUB_NEXT_CRASH;
991 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
992 return SCRUB_NEXT_FATAL;
994 if (unlikely(!thread_is_running(thread)))
995 return SCRUB_NEXT_EXIT;
997 if (!list_empty(&scrub->os_inconsistent_items)) {
998 struct osd_inconsistent_item *oii;
1000 oii = list_entry(scrub->os_inconsistent_items.next,
1001 struct osd_inconsistent_item, oii_list);
1002 *oic = &oii->oii_cache;
1003 scrub->os_in_prior = 1;
1008 return SCRUB_NEXT_WAIT;
1010 rc = osd_iit_next(param, &scrub->os_pos_current);
1014 *oic = &scrub->os_oic;
1015 fid = &(*oic)->oic_fid;
1016 lid = &(*oic)->oic_lid;
1017 rc = osd_iit_iget(info, dev, fid, lid,
1018 scrub->os_pos_current, param->sb, true);
1022 static int osd_preload_next(struct osd_thread_info *info,
1023 struct osd_device *dev, struct osd_iit_param *param,
1024 struct osd_idmap_cache **oic, const bool noslot)
1026 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1027 struct osd_scrub *scrub;
1028 struct ptlrpc_thread *thread;
1031 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1035 scrub = &dev->od_scrub;
1036 thread = &scrub->os_thread;
1037 if (thread_is_running(thread) &&
1038 ooc->ooc_pos_preload >= scrub->os_pos_current)
1039 return SCRUB_NEXT_EXIT;
1041 rc = osd_iit_iget(info, dev,
1042 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1043 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1044 ooc->ooc_pos_preload, param->sb, false);
1045 /* If succeed, it needs to move forward; otherwise up layer LFSCK may
1046 * ignore the failure, so it still need to skip the inode next time. */
1047 ooc->ooc_pos_preload = param->gbase + ++(param->offset);
1052 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1054 spin_lock(&scrub->os_lock);
1055 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1056 !list_empty(&scrub->os_inconsistent_items) ||
1057 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1058 scrub->os_waiting = 0;
1060 scrub->os_waiting = 1;
1061 spin_unlock(&scrub->os_lock);
1063 return !scrub->os_waiting;
1066 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1067 struct osd_iit_param *param,
1068 struct osd_idmap_cache *oic, bool *noslot, int rc)
1070 struct l_wait_info lwi = { 0 };
1071 struct osd_scrub *scrub = &dev->od_scrub;
1072 struct scrub_file *sf = &scrub->os_file;
1073 struct ptlrpc_thread *thread = &scrub->os_thread;
1074 struct osd_otable_it *it = dev->od_otable_it;
1075 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1078 case SCRUB_NEXT_CONTINUE:
1080 case SCRUB_NEXT_WAIT:
1082 case SCRUB_NEXT_NOSCRUB:
1083 down_write(&scrub->os_rwsem);
1084 scrub->os_new_checked++;
1085 sf->sf_items_noscrub++;
1086 up_write(&scrub->os_rwsem);
1090 rc = osd_scrub_check_update(info, dev, oic, rc);
1094 rc = osd_scrub_checkpoint(scrub);
1096 CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: "
1097 "rc = %d\n", osd_scrub2name(scrub),
1098 scrub->os_pos_current, rc);
1099 /* Continue, as long as the scrub itself can go ahead. */
1102 if (scrub->os_in_prior) {
1103 scrub->os_in_prior = 0;
1108 scrub->os_pos_current = param->gbase + ++(param->offset);
1111 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1112 ooc->ooc_pos_preload < scrub->os_pos_current) {
1113 spin_lock(&scrub->os_lock);
1114 it->ooi_waiting = 0;
1115 wake_up_all(&thread->t_ctl_waitq);
1116 spin_unlock(&scrub->os_lock);
1119 if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
1122 if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) {
1128 l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
1131 if (ooc != NULL && osd_scrub_has_window(scrub, ooc))
1138 static int osd_preload_exec(struct osd_thread_info *info,
1139 struct osd_device *dev, struct osd_iit_param *param,
1140 struct osd_idmap_cache *oic, bool *noslot, int rc)
1142 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1145 ooc->ooc_cached_items++;
1146 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1147 ~OSD_OTABLE_IT_CACHE_MASK;
1149 return rc > 0 ? 0 : rc;
1152 #define SCRUB_IT_ALL 1
1153 #define SCRUB_IT_CRASH 2
1155 static void osd_scrub_join(struct osd_device *dev, __u32 flags,
1158 struct osd_scrub *scrub = &dev->od_scrub;
1159 struct ptlrpc_thread *thread = &scrub->os_thread;
1160 struct scrub_file *sf = &scrub->os_file;
1164 LASSERT(!(flags & SS_AUTO_PARTIAL));
1166 down_write(&scrub->os_rwsem);
1167 scrub->os_in_join = 1;
1168 if (flags & SS_SET_FAILOUT)
1169 sf->sf_param |= SP_FAILOUT;
1170 else if (flags & SS_CLEAR_FAILOUT)
1171 sf->sf_param &= ~SP_FAILOUT;
1173 if (flags & SS_SET_DRYRUN)
1174 sf->sf_param |= SP_DRYRUN;
1175 else if (flags & SS_CLEAR_DRYRUN)
1176 sf->sf_param &= ~SP_DRYRUN;
1178 if (flags & SS_RESET) {
1179 osd_scrub_file_reset(scrub,
1180 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1181 inconsistent ? SF_INCONSISTENT : 0);
1182 sf->sf_status = SS_SCANNING;
1185 if (flags & SS_AUTO_FULL) {
1186 sf->sf_flags |= SF_AUTO;
1187 scrub->os_full_speed = 1;
1190 if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
1191 scrub->os_full_speed = 1;
1193 scrub->os_full_speed = 0;
1195 scrub->os_new_checked = 0;
1196 if (sf->sf_pos_last_checkpoint != 0)
1197 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
1199 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
1201 scrub->os_pos_current = sf->sf_pos_latest_start;
1202 sf->sf_time_latest_start = cfs_time_current_sec();
1203 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
1204 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
1205 rc = osd_scrub_file_store(scrub);
1207 CDEBUG(D_LFSCK, "%.16s: fail to store scrub file when join "
1208 "the OI scrub: rc = %d\n", osd_scrub2name(scrub), rc);
1210 spin_lock(&scrub->os_lock);
1211 scrub->os_waiting = 0;
1212 scrub->os_paused = 0;
1213 scrub->os_partial_scan = 0;
1214 scrub->os_in_join = 0;
1215 scrub->os_full_scrub = 0;
1216 spin_unlock(&scrub->os_lock);
1217 wake_up_all(&thread->t_ctl_waitq);
1218 up_write(&scrub->os_rwsem);
1223 static int osd_inode_iteration(struct osd_thread_info *info,
1224 struct osd_device *dev, __u32 max, bool preload)
1226 struct osd_scrub *scrub = &dev->od_scrub;
1227 struct ptlrpc_thread *thread = &scrub->os_thread;
1228 struct scrub_file *sf = &scrub->os_file;
1229 osd_iit_next_policy next;
1230 osd_iit_exec_policy exec;
1233 struct osd_iit_param param = { NULL };
1234 struct l_wait_info lwi = { 0 };
1240 param.sb = osd_sb(dev);
1244 while (scrub->os_partial_scan && !scrub->os_in_join) {
1245 struct osd_idmap_cache *oic = NULL;
1247 rc = osd_scrub_next(info, dev, ¶m, &oic, noslot);
1249 case SCRUB_NEXT_EXIT:
1251 case SCRUB_NEXT_CRASH:
1252 RETURN(SCRUB_IT_CRASH);
1253 case SCRUB_NEXT_FATAL:
1255 case SCRUB_NEXT_WAIT: {
1256 struct kstatfs *ksfs = &info->oti_ksfs;
1259 if (dev->od_full_scrub_ratio == OFSR_NEVER ||
1260 unlikely(sf->sf_items_updated_prior == 0))
1263 if (dev->od_full_scrub_ratio == OFSR_DIRECTLY ||
1264 scrub->os_full_scrub) {
1265 osd_scrub_join(dev, SS_AUTO_FULL | SS_RESET,
1270 rc = param.sb->s_op->statfs(param.sb->s_root, ksfs);
1272 __u64 used = ksfs->f_files - ksfs->f_ffree;
1274 do_div(used, sf->sf_items_updated_prior);
1275 /* If we hit too much inconsistent OI
1276 * mappings during the partial scan,
1277 * then scan the device completely. */
1278 if (used < dev->od_full_scrub_ratio) {
1280 SS_AUTO_FULL | SS_RESET, true);
1286 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) &&
1290 saved_flags = sf->sf_flags;
1291 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
1292 SF_UPGRADE | SF_AUTO);
1293 sf->sf_status = SS_COMPLETED;
1294 l_wait_event(thread->t_ctl_waitq,
1295 !thread_is_running(thread) ||
1296 !scrub->os_partial_scan ||
1297 scrub->os_in_join ||
1298 !list_empty(&scrub->os_inconsistent_items),
1300 sf->sf_flags = saved_flags;
1301 sf->sf_status = SS_SCANNING;
1303 if (unlikely(!thread_is_running(thread)))
1306 if (!scrub->os_partial_scan || scrub->os_in_join)
1312 LASSERTF(rc == 0, "rc = %d\n", rc);
1314 osd_scrub_exec(info, dev, ¶m, oic, &noslot, rc);
1321 l_wait_event(thread->t_ctl_waitq,
1322 !thread_is_running(thread) || !scrub->os_in_join,
1325 if (unlikely(!thread_is_running(thread)))
1331 next = osd_scrub_next;
1332 exec = osd_scrub_exec;
1333 pos = &scrub->os_pos_current;
1334 count = &scrub->os_new_checked;
1336 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1338 next = osd_preload_next;
1339 exec = osd_preload_exec;
1340 pos = &ooc->ooc_pos_preload;
1341 count = &ooc->ooc_cached_items;
1343 limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
1345 while (*pos <= limit && *count < max) {
1346 struct osd_idmap_cache *oic = NULL;
1347 struct ldiskfs_group_desc *desc;
1349 param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
1350 desc = ldiskfs_get_group_desc(param.sb, param.bg, NULL);
1354 ldiskfs_lock_group(param.sb, param.bg);
1355 if (desc->bg_flags & cpu_to_le16(LDISKFS_BG_INODE_UNINIT)) {
1356 ldiskfs_unlock_group(param.sb, param.bg);
1357 *pos = 1 + (param.bg + 1) *
1358 LDISKFS_INODES_PER_GROUP(param.sb);
1361 ldiskfs_unlock_group(param.sb, param.bg);
1363 param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
1364 param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1365 param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
1366 if (param.bitmap == NULL) {
1367 CDEBUG(D_LFSCK, "%.16s: fail to read bitmap for %u, "
1368 "scrub will stop, urgent mode\n",
1369 osd_scrub2name(scrub), (__u32)param.bg);
1373 while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
1376 ldiskfs_itable_unused_count(param.sb, desc) >
1377 LDISKFS_INODES_PER_GROUP(param.sb))
1380 rc = next(info, dev, ¶m, &oic, noslot);
1382 case SCRUB_NEXT_BREAK:
1384 case SCRUB_NEXT_EXIT:
1385 brelse(param.bitmap);
1387 case SCRUB_NEXT_CRASH:
1388 brelse(param.bitmap);
1389 RETURN(SCRUB_IT_CRASH);
1390 case SCRUB_NEXT_FATAL:
1391 brelse(param.bitmap);
1395 rc = exec(info, dev, ¶m, oic, &noslot, rc);
1397 brelse(param.bitmap);
1403 brelse(param.bitmap);
1407 RETURN(SCRUB_IT_ALL);
1411 static int osd_otable_it_preload(const struct lu_env *env,
1412 struct osd_otable_it *it)
1414 struct osd_device *dev = it->ooi_dev;
1415 struct osd_scrub *scrub = &dev->od_scrub;
1416 struct osd_otable_cache *ooc = &it->ooi_cache;
1420 rc = osd_inode_iteration(osd_oti_get(env), dev,
1421 OSD_OTABLE_IT_CACHE_SIZE, true);
1422 if (rc == SCRUB_IT_ALL)
1423 it->ooi_all_cached = 1;
1425 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1426 spin_lock(&scrub->os_lock);
1427 scrub->os_waiting = 0;
1428 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1429 spin_unlock(&scrub->os_lock);
1432 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1435 static int osd_scrub_main(void *args)
1438 struct osd_device *dev = (struct osd_device *)args;
1439 struct osd_scrub *scrub = &dev->od_scrub;
1440 struct ptlrpc_thread *thread = &scrub->os_thread;
1444 rc = lu_env_init(&env, LCT_LOCAL);
1446 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n",
1447 osd_scrub2name(scrub), rc);
1451 rc = osd_scrub_prep(dev);
1453 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n",
1454 osd_scrub2name(scrub), rc);
1458 if (!scrub->os_full_speed && !scrub->os_partial_scan) {
1459 struct l_wait_info lwi = { 0 };
1460 struct osd_otable_it *it = dev->od_otable_it;
1461 struct osd_otable_cache *ooc = &it->ooi_cache;
1463 l_wait_event(thread->t_ctl_waitq,
1464 it->ooi_user_ready || !thread_is_running(thread),
1466 if (unlikely(!thread_is_running(thread)))
1469 scrub->os_pos_current = ooc->ooc_pos_preload;
1472 CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n",
1473 osd_scrub2name(scrub), scrub->os_start_flags,
1474 scrub->os_pos_current);
1476 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1477 if (unlikely(rc == SCRUB_IT_CRASH))
1478 GOTO(out, rc = -EINVAL);
1482 osd_scrub_post(scrub, rc);
1483 CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n",
1484 osd_scrub2name(scrub), scrub->os_pos_current, rc);
1487 while (!list_empty(&scrub->os_inconsistent_items)) {
1488 struct osd_inconsistent_item *oii;
1490 oii = list_entry(scrub->os_inconsistent_items.next,
1491 struct osd_inconsistent_item, oii_list);
1492 list_del_init(&oii->oii_list);
1498 spin_lock(&scrub->os_lock);
1499 thread_set_flags(thread, SVC_STOPPED);
1500 wake_up_all(&thread->t_ctl_waitq);
1501 spin_unlock(&scrub->os_lock);
1505 /* initial OI scrub */
1507 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1508 struct dentry *, filldir_t filldir);
1510 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1511 loff_t offset, __u64 ino, unsigned d_type);
1512 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1513 loff_t offset, __u64 ino, unsigned d_type);
1514 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1515 loff_t offset, __u64 ino, unsigned d_type);
1518 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1519 struct dentry *dentry, filldir_t filldir);
1521 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1522 struct dentry *dentry, filldir_t filldir);
1525 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1526 struct dentry *dentry, filldir_t filldir);
1529 OLF_SCAN_SUBITEMS = 0x0001,
1530 OLF_HIDE_FID = 0x0002,
1531 OLF_SHOW_NAME = 0x0004,
1537 struct lu_fid olm_fid;
1539 scandir_t olm_scandir;
1540 filldir_t olm_filldir;
1543 /* Add the new introduced local files in the list in the future. */
1544 static const struct osd_lf_map osd_lf_maps[] = {
1546 { CATLIST, { FID_SEQ_LOCAL_FILE, LLOG_CATALOGS_OID, 0 }, OLF_SHOW_NAME,
1550 { MOUNT_CONFIGS_DIR, { FID_SEQ_LOCAL_FILE, MGS_CONFIGS_OID, 0 },
1551 OLF_SCAN_SUBITEMS, osd_ios_general_scan,
1552 osd_ios_varfid_fill },
1554 /* NIDTBL_VERSIONS */
1555 { MGS_NIDTBL_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1556 osd_ios_general_scan, osd_ios_varfid_fill },
1559 { "PENDING", { 0, 0, 0 }, 0, NULL, NULL },
1562 { "ROOT", { FID_SEQ_ROOT, 1, 0 },
1563 OLF_SCAN_SUBITEMS | OLF_HIDE_FID, osd_ios_ROOT_scan, NULL },
1565 /* changelog_catalog */
1566 { CHANGELOG_CATALOG, { 0, 0, 0 }, 0, NULL, NULL },
1568 /* changelog_users */
1569 { CHANGELOG_USERS, { 0, 0, 0 }, 0, NULL, NULL },
1572 { "fld", { FID_SEQ_LOCAL_FILE, FLD_INDEX_OID, 0 }, OLF_SHOW_NAME,
1576 { LAST_RCVD, { FID_SEQ_LOCAL_FILE, LAST_RECV_OID, 0 }, OLF_SHOW_NAME,
1579 /* lfsck_bookmark */
1580 { "lfsck_bookmark", { 0, 0, 0 }, 0, NULL, NULL },
1583 { LOV_OBJID, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OID, 0 }, OLF_SHOW_NAME,
1587 { LOV_OBJSEQ, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OSEQ, 0 },
1588 OLF_SHOW_NAME, NULL, NULL },
1591 { QMT_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1592 osd_ios_general_scan, osd_ios_varfid_fill },
1595 { QSD_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1596 osd_ios_general_scan, osd_ios_varfid_fill },
1599 { "seq_ctl", { FID_SEQ_LOCAL_FILE, FID_SEQ_CTL_OID, 0 },
1600 OLF_SHOW_NAME, NULL, NULL },
1603 { "seq_srv", { FID_SEQ_LOCAL_FILE, FID_SEQ_SRV_OID, 0 },
1604 OLF_SHOW_NAME, NULL, NULL },
1607 { HEALTH_CHECK, { FID_SEQ_LOCAL_FILE, OFD_HEALTH_CHECK_OID, 0 },
1608 OLF_SHOW_NAME, NULL, NULL },
1610 /* lfsck_namespace */
1611 { "lfsck_namespace", { 0, 0, 0 }, 0, NULL, NULL },
1613 /* OBJECTS, upgrade from old device */
1614 { OBJECTS, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, osd_ios_OBJECTS_scan, NULL },
1616 /* lquota_v2.user, upgrade from old device */
1617 { "lquota_v2.user", { 0, 0, 0 }, 0, NULL, NULL },
1619 /* lquota_v2.group, upgrade from old device */
1620 { "lquota_v2.group", { 0, 0, 0 }, 0, NULL, NULL },
1622 /* LAST_GROUP, upgrade from old device */
1623 { "LAST_GROUP", { FID_SEQ_LOCAL_FILE, OFD_LAST_GROUP_OID, 0 },
1624 OLF_SHOW_NAME, NULL, NULL },
1626 /* SLAVE_LOG, llog for destroy slave stripes of striped dir */
1627 { "SLAVE_LOG", { FID_SEQ_LOCAL_FILE, SLAVE_LLOG_CATALOGS_OID, 0 },
1628 OLF_SHOW_NAME, NULL, NULL },
1631 { "lost+found", { FID_SEQ_LOCAL_FILE, OSD_LPF_OID, 0 },
1632 OLF_SCAN_SUBITEMS, osd_ios_general_scan, osd_ios_lf_fill },
1634 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1637 /* Add the new introduced files under .lustre/ in the list in the future. */
1638 static const struct osd_lf_map osd_dl_maps[] = {
1640 { "fid", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_OBF, 0 }, 0,
1643 /* .lustre/lost+found */
1644 { "lost+found", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_LPF, 0 }, 0,
1647 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1650 struct osd_ios_item {
1651 struct list_head oii_list;
1652 struct dentry *oii_dentry;
1653 scandir_t oii_scandir;
1654 filldir_t oii_filldir;
1657 struct osd_ios_filldir_buf {
1658 #ifdef HAVE_DIR_CONTEXT
1659 /* please keep it as first member */
1660 struct dir_context ctx;
1662 struct osd_thread_info *oifb_info;
1663 struct osd_device *oifb_dev;
1664 struct dentry *oifb_dentry;
1667 static inline struct dentry *
1668 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1670 struct dentry *dentry;
1672 dentry = ll_lookup_one_len(name, parent, namelen);
1673 if (!IS_ERR(dentry) && dentry->d_inode == NULL) {
1675 return ERR_PTR(-ENOENT);
1682 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1683 scandir_t scandir, filldir_t filldir)
1685 struct osd_ios_item *item;
1688 OBD_ALLOC_PTR(item);
1692 INIT_LIST_HEAD(&item->oii_list);
1693 item->oii_dentry = dget(dentry);
1694 item->oii_scandir = scandir;
1695 item->oii_filldir = filldir;
1696 list_add_tail(&item->oii_list, &dev->od_ios_list);
1702 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
1704 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
1705 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
1706 * reference the inode, or fixed if it is missing or references another inode.
1709 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
1710 struct inode *inode, const struct lu_fid *fid, int flags)
1712 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1713 struct osd_inode_id *id = &info->oti_id;
1714 struct osd_inode_id *id2 = &info->oti_id2;
1715 struct osd_scrub *scrub = &dev->od_scrub;
1716 struct scrub_file *sf = &scrub->os_file;
1721 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
1722 if (rc != 0 && rc != -ENODATA) {
1723 CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
1724 "rc = %d\n", osd_name(dev), rc);
1729 osd_id_gen(id, inode->i_ino, inode->i_generation);
1730 if (rc == -ENODATA) {
1731 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID)
1732 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
1735 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
1737 CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
1738 "scrub: rc = %d\n", osd_name(dev), rc);
1743 if (lma->lma_compat & LMAC_NOT_IN_OI)
1746 tfid = lma->lma_self_fid;
1749 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
1754 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1755 DTO_INDEX_INSERT, true, 0);
1762 if (osd_id_eq_strict(id, id2))
1765 if (!(sf->sf_flags & SF_INCONSISTENT)) {
1766 osd_scrub_file_reset(scrub,
1767 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1769 rc = osd_scrub_file_store(scrub);
1774 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1775 DTO_INDEX_UPDATE, true, 0);
1783 * It scans the /lost+found, and for the OST-object (with filter_fid
1784 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
1786 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1787 loff_t offset, __u64 ino, unsigned d_type)
1789 struct osd_ios_filldir_buf *fill_buf = buf;
1790 struct osd_thread_info *info = fill_buf->oifb_info;
1791 struct osd_device *dev = fill_buf->oifb_dev;
1792 struct lu_fid *fid = &info->oti_fid;
1793 struct osd_scrub *scrub = &dev->od_scrub;
1794 struct dentry *parent = fill_buf->oifb_dentry;
1795 struct dentry *child;
1796 struct inode *dir = parent->d_inode;
1797 struct inode *inode;
1801 /* skip any '.' started names */
1805 scrub->os_lf_scanned++;
1806 child = osd_ios_lookup_one_len(name, parent, namelen);
1807 if (IS_ERR(child)) {
1808 CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
1809 osd_name(dev), namelen, name, (int)PTR_ERR(child));
1813 inode = child->d_inode;
1814 if (S_ISDIR(inode->i_mode)) {
1815 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1818 CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
1819 "rc = %d\n", osd_name(dev), namelen, name, rc);
1823 if (!S_ISREG(inode->i_mode))
1826 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
1827 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
1828 rc = osd_obj_map_recover(info, dev, dir, child, fid);
1830 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
1831 "/lost+found.\n", namelen, name, PFID(fid));
1832 scrub->os_lf_repaired++;
1834 CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
1836 osd_name(dev), namelen, name, PFID(fid), rc);
1840 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
1841 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
1842 * can process them in furtuer. */
1848 scrub->os_lf_failed++;
1850 /* skip the failure to make the scanning to continue. */
1854 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1855 loff_t offset, __u64 ino, unsigned d_type)
1857 struct osd_ios_filldir_buf *fill_buf = buf;
1858 struct osd_device *dev = fill_buf->oifb_dev;
1859 struct dentry *child;
1863 /* skip any '.' started names */
1867 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1869 RETURN(PTR_ERR(child));
1871 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1873 if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
1874 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1875 osd_ios_varfid_fill);
1881 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1882 loff_t offset, __u64 ino, unsigned d_type)
1884 struct osd_ios_filldir_buf *fill_buf = buf;
1885 struct osd_device *dev = fill_buf->oifb_dev;
1886 const struct osd_lf_map *map;
1887 struct dentry *child;
1891 /* skip any '.' started names */
1895 for (map = osd_dl_maps; map->olm_name != NULL; map++) {
1896 if (strlen(map->olm_name) != namelen)
1899 if (strncmp(map->olm_name, name, namelen) == 0)
1903 if (map->olm_name == NULL)
1906 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1908 RETURN(PTR_ERR(child));
1910 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1911 &map->olm_fid, map->olm_flags);
1917 static int osd_ios_root_fill(void *buf, const char *name, int namelen,
1918 loff_t offset, __u64 ino, unsigned d_type)
1920 struct osd_ios_filldir_buf *fill_buf = buf;
1921 struct osd_device *dev = fill_buf->oifb_dev;
1922 const struct osd_lf_map *map;
1923 struct dentry *child;
1927 /* skip any '.' started names */
1931 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
1932 if (strlen(map->olm_name) != namelen)
1935 if (strncmp(map->olm_name, name, namelen) == 0)
1939 if (map->olm_name == NULL)
1942 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1944 RETURN(PTR_ERR(child));
1946 if (!(map->olm_flags & OLF_NO_OI))
1947 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1948 &map->olm_fid, map->olm_flags);
1949 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
1950 rc = osd_ios_new_item(dev, child, map->olm_scandir,
1958 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1959 struct dentry *dentry, filldir_t filldir)
1961 struct osd_ios_filldir_buf buf = {
1962 #ifdef HAVE_DIR_CONTEXT
1963 .ctx.actor = filldir,
1967 .oifb_dentry = dentry };
1968 struct file *filp = &info->oti_it_ea.oie_file;
1969 struct inode *inode = dentry->d_inode;
1970 const struct file_operations *fops = inode->i_fop;
1974 LASSERT(filldir != NULL);
1977 filp->f_dentry = dentry;
1978 filp->f_mode = FMODE_64BITHASH;
1979 filp->f_mapping = inode->i_mapping;
1981 filp->private_data = NULL;
1982 set_file_inode(filp, inode);
1984 #ifdef HAVE_DIR_CONTEXT
1985 buf.ctx.pos = filp->f_pos;
1986 rc = fops->iterate(filp, &buf.ctx);
1987 filp->f_pos = buf.ctx.pos;
1989 rc = fops->readdir(filp, &buf, filldir);
1991 fops->release(inode, filp);
1997 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1998 struct dentry *dentry, filldir_t filldir)
2000 struct osd_scrub *scrub = &dev->od_scrub;
2001 struct scrub_file *sf = &scrub->os_file;
2002 struct dentry *child;
2006 /* It is existing MDT0 device. We only allow the case of object without
2007 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
2008 * can generate IGIF mode FID for the object and related OI mapping. If
2009 * it is on other MDTs, then becuase file-level backup/restore, related
2010 * OI mapping may be invalid already, we do not know which is the right
2011 * FID for the object. We only allow IGIF objects to reside on the MDT0.
2013 * XXX: For the case of object on non-MDT0 device with neither LMA nor
2014 * "fid" xattr, then something crashed. We cannot re-generate the
2015 * FID directly, instead, the OI scrub will scan the OI structure
2016 * and try to re-generate the LMA from the OI mapping. But if the
2017 * OI mapping crashed or lost also, then we have to give up under
2018 * double failure cases. */
2019 scrub->os_convert_igif = 1;
2020 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
2021 strlen(dot_lustre_name));
2022 if (IS_ERR(child)) {
2023 rc = PTR_ERR(child);
2024 if (rc == -ENOENT) {
2025 /* It is 1.8 MDT device. */
2026 if (!(sf->sf_flags & SF_UPGRADE)) {
2027 osd_scrub_file_reset(scrub,
2028 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
2030 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2031 rc = osd_scrub_file_store(scrub);
2037 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
2038 * so the client will get IGIF for the ".lustre" object when
2041 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
2042 * it does not know whether there are some old clients cached
2043 * the ".lustre" IGIF during the upgrading. Two choices:
2045 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
2046 * It will allow the old connected clients to access the
2047 * ".lustre" with cached IGIF. But it will cause others
2048 * on the MDT failed to check "fid_is_dot_lustre()".
2050 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
2051 * for ".lustre" in spite of whether there are some clients
2052 * cached the ".lustre" IGIF or not. It enables the check
2053 * "fid_is_dot_lustre()" on the MDT, although it will cause
2054 * that the old connected clients cannot access the ".lustre"
2055 * with the cached IGIF.
2057 * Usually, it is rare case for the old connected clients
2058 * to access the ".lustre" with cached IGIF. So we prefer
2059 * to the solution 2). */
2060 rc = osd_ios_scan_one(info, dev, child->d_inode,
2061 &LU_DOT_LUSTRE_FID, 0);
2063 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2072 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
2073 struct dentry *dentry, filldir_t filldir)
2075 struct osd_scrub *scrub = &dev->od_scrub;
2076 struct scrub_file *sf = &scrub->os_file;
2077 struct dentry *child;
2081 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
2082 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2083 rc = osd_scrub_file_store(scrub);
2088 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
2089 if (!IS_ERR(child)) {
2090 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2093 rc = PTR_ERR(child);
2096 if (rc != 0 && rc != -ENOENT)
2099 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
2100 if (!IS_ERR(child)) {
2101 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2104 rc = PTR_ERR(child);
2113 static int osd_initial_OI_scrub(struct osd_thread_info *info,
2114 struct osd_device *dev)
2116 struct osd_ios_item *item = NULL;
2117 scandir_t scandir = osd_ios_general_scan;
2118 filldir_t filldir = osd_ios_root_fill;
2119 struct dentry *dentry = osd_sb(dev)->s_root;
2120 const struct osd_lf_map *map = osd_lf_maps;
2124 /* Lookup IGIF in OI by force for initial OI scrub. */
2125 dev->od_igif_inoi = 1;
2128 rc = scandir(info, dev, dentry, filldir);
2130 dput(item->oii_dentry);
2137 if (list_empty(&dev->od_ios_list))
2140 item = list_entry(dev->od_ios_list.next,
2141 struct osd_ios_item, oii_list);
2142 list_del_init(&item->oii_list);
2144 LASSERT(item->oii_scandir != NULL);
2145 scandir = item->oii_scandir;
2146 filldir = item->oii_filldir;
2147 dentry = item->oii_dentry;
2150 while (!list_empty(&dev->od_ios_list)) {
2151 item = list_entry(dev->od_ios_list.next,
2152 struct osd_ios_item, oii_list);
2153 list_del_init(&item->oii_list);
2154 dput(item->oii_dentry);
2161 /* There maybe the case that the object has been removed, but its OI
2162 * mapping is still in the OI file, such as the "CATALOGS" after MDT
2163 * file-level backup/restore. So here cleanup the stale OI mappings. */
2164 while (map->olm_name != NULL) {
2165 struct dentry *child;
2167 if (fid_is_zero(&map->olm_fid)) {
2172 child = osd_ios_lookup_one_len(map->olm_name,
2173 osd_sb(dev)->s_root,
2174 strlen(map->olm_name));
2177 else if (PTR_ERR(child) == -ENOENT)
2178 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
2179 NULL, DTO_INDEX_DELETE,
2187 char *osd_lf_fid2name(const struct lu_fid *fid)
2189 const struct osd_lf_map *map = osd_lf_maps;
2191 while (map->olm_name != NULL) {
2192 if (!lu_fid_eq(fid, &map->olm_fid)) {
2197 if (map->olm_flags & OLF_SHOW_NAME)
2198 return map->olm_name;
2206 /* OI scrub start/stop */
2208 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
2210 struct osd_scrub *scrub = &dev->od_scrub;
2211 struct ptlrpc_thread *thread = &scrub->os_thread;
2212 struct l_wait_info lwi = { 0 };
2213 struct task_struct *task;
2217 /* os_lock: sync status between stop and scrub thread */
2218 spin_lock(&scrub->os_lock);
2221 if (thread_is_running(thread)) {
2222 spin_unlock(&scrub->os_lock);
2223 if (!scrub->os_partial_scan || flags & SS_AUTO_PARTIAL)
2226 osd_scrub_join(dev, flags, false);
2227 spin_lock(&scrub->os_lock);
2228 if (!thread_is_running(thread))
2231 spin_unlock(&scrub->os_lock);
2235 if (unlikely(thread_is_stopping(thread))) {
2236 spin_unlock(&scrub->os_lock);
2237 l_wait_event(thread->t_ctl_waitq,
2238 thread_is_stopped(thread),
2240 spin_lock(&scrub->os_lock);
2243 spin_unlock(&scrub->os_lock);
2245 if (scrub->os_file.sf_status == SS_COMPLETED) {
2246 if (!(flags & SS_SET_FAILOUT))
2247 flags |= SS_CLEAR_FAILOUT;
2249 if (!(flags & SS_SET_DRYRUN))
2250 flags |= SS_CLEAR_DRYRUN;
2255 scrub->os_start_flags = flags;
2256 thread_set_flags(thread, 0);
2257 task = kthread_run(osd_scrub_main, dev, "OI_scrub");
2260 CERROR("%.16s: cannot start iteration thread: rc = %d\n",
2261 osd_scrub2name(scrub), rc);
2265 l_wait_event(thread->t_ctl_waitq,
2266 thread_is_running(thread) || thread_is_stopped(thread),
2272 int osd_scrub_start(struct osd_device *dev, __u32 flags)
2277 /* od_otable_mutex: prevent curcurrent start/stop */
2278 mutex_lock(&dev->od_otable_mutex);
2279 rc = do_osd_scrub_start(dev, flags);
2280 mutex_unlock(&dev->od_otable_mutex);
2282 RETURN(rc == -EALREADY ? 0 : rc);
2285 static void do_osd_scrub_stop(struct osd_scrub *scrub)
2287 struct ptlrpc_thread *thread = &scrub->os_thread;
2288 struct l_wait_info lwi = { 0 };
2290 /* os_lock: sync status between stop and scrub thread */
2291 spin_lock(&scrub->os_lock);
2292 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
2293 thread_set_flags(thread, SVC_STOPPING);
2294 spin_unlock(&scrub->os_lock);
2295 wake_up_all(&thread->t_ctl_waitq);
2296 l_wait_event(thread->t_ctl_waitq,
2297 thread_is_stopped(thread),
2299 /* Do not skip the last lock/unlock, which can guarantee that
2300 * the caller cannot return until the OI scrub thread exit. */
2301 spin_lock(&scrub->os_lock);
2303 spin_unlock(&scrub->os_lock);
2306 static void osd_scrub_stop(struct osd_device *dev)
2308 /* od_otable_mutex: prevent curcurrent start/stop */
2309 mutex_lock(&dev->od_otable_mutex);
2310 dev->od_scrub.os_paused = 1;
2311 do_osd_scrub_stop(&dev->od_scrub);
2312 mutex_unlock(&dev->od_otable_mutex);
2315 /* OI scrub setup/cleanup */
2317 static const char osd_scrub_name[] = "OI_scrub";
2319 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2321 struct osd_thread_info *info = osd_oti_get(env);
2322 struct osd_scrub *scrub = &dev->od_scrub;
2323 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2324 struct scrub_file *sf = &scrub->os_file;
2325 struct super_block *sb = osd_sb(dev);
2326 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2327 struct lvfs_run_ctxt saved;
2329 struct inode *inode;
2330 struct lu_fid *fid = &info->oti_fid;
2335 memset(scrub, 0, sizeof(*scrub));
2336 OBD_SET_CTXT_MAGIC(ctxt);
2337 ctxt->pwdmnt = dev->od_mnt;
2338 ctxt->pwd = dev->od_mnt->mnt_root;
2339 ctxt->fs = get_ds();
2341 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2342 init_rwsem(&scrub->os_rwsem);
2343 spin_lock_init(&scrub->os_lock);
2344 INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2346 push_ctxt(&saved, ctxt);
2347 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2349 pop_ctxt(&saved, ctxt);
2350 RETURN(PTR_ERR(filp));
2353 inode = filp->f_dentry->d_inode;
2354 /* 'What the @fid is' is not imporatant, because the object
2355 * has no OI mapping, and only is visible inside the OSD.*/
2356 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2357 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2359 filp_close(filp, NULL);
2360 pop_ctxt(&saved, ctxt);
2364 scrub->os_inode = igrab(inode);
2365 filp_close(filp, NULL);
2366 pop_ctxt(&saved, ctxt);
2368 rc = osd_scrub_file_load(scrub);
2369 if (rc == -ENOENT) {
2370 osd_scrub_file_init(scrub, es->s_uuid);
2371 /* If the "/O" dir does not exist when mount (indicated by
2372 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2373 * then it is quite probably that the device is a new one,
2374 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2376 * For the rare case that "/O" and "OI_scrub" both lost on
2377 * an old device, it can be found and cleared later.
2379 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2380 * need to check "filter_fid_old" and to convert it to
2381 * "filter_fid" for each object, and all the IGIF should
2382 * have their FID mapping in OI files already. */
2383 if (dev->od_maybe_new)
2384 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2386 } else if (rc != 0) {
2387 GOTO(cleanup_inode, rc);
2389 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2390 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2392 } else if (sf->sf_status == SS_SCANNING) {
2393 sf->sf_status = SS_CRASHED;
2398 if (sf->sf_pos_last_checkpoint != 0)
2399 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2401 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2404 rc = osd_scrub_file_store(scrub);
2406 GOTO(cleanup_inode, rc);
2409 /* Initialize OI files. */
2410 rc = osd_oi_init(info, dev);
2412 GOTO(cleanup_inode, rc);
2414 rc = osd_initial_OI_scrub(info, dev);
2416 GOTO(cleanup_oi, rc);
2418 if (sf->sf_flags & SF_UPGRADE ||
2419 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2420 sf->sf_success_count > 0)) {
2421 dev->od_igif_inoi = 0;
2422 dev->od_check_ff = dev->od_is_ost;
2424 dev->od_igif_inoi = 1;
2425 dev->od_check_ff = 0;
2428 if (sf->sf_flags & SF_INCONSISTENT)
2429 /* The 'od_igif_inoi' will be set under the
2431 * 1) new created system, or
2432 * 2) restored from file-level backup, or
2433 * 3) the upgrading completed.
2435 * The 'od_igif_inoi' may be cleared by OI scrub
2436 * later if found that the system is upgrading. */
2437 dev->od_igif_inoi = 1;
2439 if (!dev->od_noscrub &&
2440 ((sf->sf_status == SS_PAUSED) ||
2441 (sf->sf_status == SS_CRASHED &&
2442 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2443 SF_UPGRADE | SF_AUTO)) ||
2444 (sf->sf_status == SS_INIT &&
2445 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2447 rc = osd_scrub_start(dev, SS_AUTO_FULL);
2450 GOTO(cleanup_oi, rc);
2452 /* it is possible that dcache entries may keep objects after they are
2453 * deleted by OSD. While it looks safe this can cause object data to
2454 * stay until umount causing failures in tests calculating free space,
2455 * e.g. replay-ost-single. Since those dcache entries are not used
2456 * anymore let's just free them after use here */
2457 shrink_dcache_sb(sb);
2461 osd_oi_fini(info, dev);
2463 iput(scrub->os_inode);
2464 scrub->os_inode = NULL;
2469 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2471 struct osd_scrub *scrub = &dev->od_scrub;
2473 LASSERT(dev->od_otable_it == NULL);
2475 if (scrub->os_inode != NULL) {
2476 osd_scrub_stop(dev);
2477 iput(scrub->os_inode);
2478 scrub->os_inode = NULL;
2480 if (dev->od_oi_table != NULL)
2481 osd_oi_fini(osd_oti_get(env), dev);
2484 /* object table based iteration APIs */
2486 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2487 struct dt_object *dt, __u32 attr,
2488 struct lustre_capa *capa)
2490 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2491 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2492 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2493 struct osd_scrub *scrub = &dev->od_scrub;
2494 struct osd_otable_it *it;
2499 /* od_otable_mutex: prevent curcurrent init/fini */
2500 mutex_lock(&dev->od_otable_mutex);
2501 if (dev->od_otable_it != NULL)
2502 GOTO(out, it = ERR_PTR(-EALREADY));
2506 GOTO(out, it = ERR_PTR(-ENOMEM));
2508 dev->od_otable_it = it;
2510 it->ooi_cache.ooc_consumer_idx = -1;
2511 if (flags & DOIF_OUTUSED)
2512 it->ooi_used_outside = 1;
2514 if (flags & DOIF_RESET)
2517 if (valid & DOIV_ERROR_HANDLE) {
2518 if (flags & DOIF_FAILOUT)
2519 start |= SS_SET_FAILOUT;
2521 start |= SS_CLEAR_FAILOUT;
2524 if (valid & DOIV_DRYRUN) {
2525 if (flags & DOIF_DRYRUN)
2526 start |= SS_SET_DRYRUN;
2528 start |= SS_CLEAR_DRYRUN;
2531 rc = do_osd_scrub_start(dev, start & ~SS_AUTO_PARTIAL);
2532 if (rc < 0 && rc != -EALREADY) {
2533 dev->od_otable_it = NULL;
2535 GOTO(out, it = ERR_PTR(rc));
2538 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2543 mutex_unlock(&dev->od_otable_mutex);
2544 return (struct dt_it *)it;
2547 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2549 struct osd_otable_it *it = (struct osd_otable_it *)di;
2550 struct osd_device *dev = it->ooi_dev;
2552 /* od_otable_mutex: prevent curcurrent init/fini */
2553 mutex_lock(&dev->od_otable_mutex);
2554 do_osd_scrub_stop(&dev->od_scrub);
2555 LASSERT(dev->od_otable_it == it);
2557 dev->od_otable_it = NULL;
2558 mutex_unlock(&dev->od_otable_mutex);
2562 static int osd_otable_it_get(const struct lu_env *env,
2563 struct dt_it *di, const struct dt_key *key)
2568 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2573 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2575 spin_lock(&scrub->os_lock);
2576 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2577 scrub->os_waiting ||
2578 !thread_is_running(&scrub->os_thread))
2579 it->ooi_waiting = 0;
2581 it->ooi_waiting = 1;
2582 spin_unlock(&scrub->os_lock);
2584 return !it->ooi_waiting;
2587 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2589 struct osd_otable_it *it = (struct osd_otable_it *)di;
2590 struct osd_device *dev = it->ooi_dev;
2591 struct osd_scrub *scrub = &dev->od_scrub;
2592 struct osd_otable_cache *ooc = &it->ooi_cache;
2593 struct ptlrpc_thread *thread = &scrub->os_thread;
2594 struct l_wait_info lwi = { 0 };
2598 LASSERT(it->ooi_user_ready);
2601 if (!thread_is_running(thread) && !it->ooi_used_outside)
2604 if (ooc->ooc_cached_items > 0) {
2605 ooc->ooc_cached_items--;
2606 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
2607 ~OSD_OTABLE_IT_CACHE_MASK;
2611 if (it->ooi_all_cached) {
2612 l_wait_event(thread->t_ctl_waitq,
2613 !thread_is_running(thread),
2618 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
2619 spin_lock(&scrub->os_lock);
2620 scrub->os_waiting = 0;
2621 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2622 spin_unlock(&scrub->os_lock);
2625 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
2626 l_wait_event(thread->t_ctl_waitq,
2627 osd_otable_it_wakeup(scrub, it),
2630 if (!thread_is_running(thread) && !it->ooi_used_outside)
2633 rc = osd_otable_it_preload(env, it);
2640 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
2641 const struct dt_it *di)
2646 static int osd_otable_it_key_size(const struct lu_env *env,
2647 const struct dt_it *di)
2649 return sizeof(__u64);
2652 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
2653 struct dt_rec *rec, __u32 attr)
2655 struct osd_otable_it *it = (struct osd_otable_it *)di;
2656 struct osd_otable_cache *ooc = &it->ooi_cache;
2658 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
2660 /* Filter out Invald FID already. */
2661 LASSERTF(fid_is_sane((struct lu_fid *)rec),
2662 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
2663 PFID((struct lu_fid *)rec),
2664 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
2669 static __u64 osd_otable_it_store(const struct lu_env *env,
2670 const struct dt_it *di)
2672 struct osd_otable_it *it = (struct osd_otable_it *)di;
2673 struct osd_otable_cache *ooc = &it->ooi_cache;
2676 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
2677 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
2679 hash = ooc->ooc_pos_preload;
2684 * Set the OSD layer iteration start position as the specified hash.
2686 static int osd_otable_it_load(const struct lu_env *env,
2687 const struct dt_it *di, __u64 hash)
2689 struct osd_otable_it *it = (struct osd_otable_it *)di;
2690 struct osd_device *dev = it->ooi_dev;
2691 struct osd_otable_cache *ooc = &it->ooi_cache;
2692 struct osd_scrub *scrub = &dev->od_scrub;
2696 /* Forbid to set iteration position after iteration started. */
2697 if (it->ooi_user_ready)
2700 if (hash > OSD_OTABLE_MAX_HASH)
2701 hash = OSD_OTABLE_MAX_HASH;
2703 ooc->ooc_pos_preload = hash;
2704 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
2705 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
2707 it->ooi_user_ready = 1;
2708 if (!scrub->os_full_speed)
2709 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2711 /* Unplug OSD layer iteration by the first next() call. */
2712 rc = osd_otable_it_next(env, (struct dt_it *)it);
2717 static int osd_otable_it_key_rec(const struct lu_env *env,
2718 const struct dt_it *di, void *key_rec)
2723 const struct dt_index_operations osd_otable_ops = {
2725 .init = osd_otable_it_init,
2726 .fini = osd_otable_it_fini,
2727 .get = osd_otable_it_get,
2728 .put = osd_otable_it_put,
2729 .next = osd_otable_it_next,
2730 .key = osd_otable_it_key,
2731 .key_size = osd_otable_it_key_size,
2732 .rec = osd_otable_it_rec,
2733 .store = osd_otable_it_store,
2734 .load = osd_otable_it_load,
2735 .key_rec = osd_otable_it_key_rec,
2739 /* high priority inconsistent items list APIs */
2741 #define SCRUB_BAD_OIMAP_DECAY_INTERVAL 60
2743 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
2746 struct osd_inconsistent_item *oii;
2747 struct osd_scrub *scrub = &dev->od_scrub;
2748 struct ptlrpc_thread *thread = &scrub->os_thread;
2753 if (unlikely(oii == NULL))
2756 INIT_LIST_HEAD(&oii->oii_list);
2757 oii->oii_cache = *oic;
2758 oii->oii_insert = insert;
2760 if (scrub->os_partial_scan) {
2761 __u64 now = cfs_time_current_sec();
2763 /* If there haven't been errors in a long time,
2764 * decay old count until either the errors are
2765 * gone or we reach the current interval. */
2766 while (unlikely(scrub->os_bad_oimap_count > 0 &&
2767 scrub->os_bad_oimap_time +
2768 SCRUB_BAD_OIMAP_DECAY_INTERVAL < now)) {
2769 scrub->os_bad_oimap_count >>= 1;
2770 scrub->os_bad_oimap_time +=
2771 SCRUB_BAD_OIMAP_DECAY_INTERVAL;
2774 scrub->os_bad_oimap_time = now;
2775 if (++scrub->os_bad_oimap_count >
2776 dev->od_full_scrub_threshold_rate)
2777 scrub->os_full_scrub = 1;
2780 spin_lock(&scrub->os_lock);
2781 if (unlikely(!thread_is_running(thread))) {
2782 spin_unlock(&scrub->os_lock);
2787 if (list_empty(&scrub->os_inconsistent_items))
2789 list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
2790 spin_unlock(&scrub->os_lock);
2793 wake_up_all(&thread->t_ctl_waitq);
2798 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
2799 struct osd_inode_id *id)
2801 struct osd_scrub *scrub = &dev->od_scrub;
2802 struct osd_inconsistent_item *oii;
2805 spin_lock(&scrub->os_lock);
2806 list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
2807 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
2808 *id = oii->oii_cache.oic_lid;
2809 spin_unlock(&scrub->os_lock);
2813 spin_unlock(&scrub->os_lock);
2820 static const char *scrub_status_names[] = {
2831 static const char *scrub_flags_names[] = {
2839 static const char *scrub_param_names[] = {
2845 static int scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
2852 rc = seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
2856 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
2859 rc = seq_printf(m, "%s%c", names[i],
2860 bits != 0 ? ',' : '\n');
2868 static int scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
2873 rc = seq_printf(m, "%s: "LPU64" seconds\n", prefix,
2874 cfs_time_current_sec() - time);
2876 rc = seq_printf(m, "%s: N/A\n", prefix);
2880 static int scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
2885 rc = seq_printf(m, "%s: "LPU64"\n", prefix, pos);
2887 rc = seq_printf(m, "%s: N/A\n", prefix);
2891 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
2893 struct osd_scrub *scrub = &dev->od_scrub;
2894 struct scrub_file *sf = &scrub->os_file;
2899 down_read(&scrub->os_rwsem);
2900 rc = seq_printf(m, "name: OI_scrub\n"
2904 sf->sf_magic, (int)sf->sf_oi_count,
2905 scrub_status_names[sf->sf_status]);
2909 rc = scrub_bits_dump(m, sf->sf_flags, scrub_flags_names,
2914 rc = scrub_bits_dump(m, sf->sf_param, scrub_param_names,
2919 rc = scrub_time_dump(m, sf->sf_time_last_complete,
2920 "time_since_last_completed");
2924 rc = scrub_time_dump(m, sf->sf_time_latest_start,
2925 "time_since_latest_start");
2929 rc = scrub_time_dump(m, sf->sf_time_last_checkpoint,
2930 "time_since_last_checkpoint");
2934 rc = scrub_pos_dump(m, sf->sf_pos_latest_start,
2935 "latest_start_position");
2939 rc = scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
2940 "last_checkpoint_position");
2944 rc = scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
2945 "first_failure_position");
2949 checked = sf->sf_items_checked + scrub->os_new_checked;
2950 rc = seq_printf(m, "checked: "LPU64"\n"
2951 "updated: "LPU64"\n"
2953 "prior_updated: "LPU64"\n"
2954 "noscrub: "LPU64"\n"
2956 "success_count: %u\n",
2957 checked, sf->sf_items_updated, sf->sf_items_failed,
2958 sf->sf_items_updated_prior, sf->sf_items_noscrub,
2959 sf->sf_items_igif, sf->sf_success_count);
2964 if (thread_is_running(&scrub->os_thread)) {
2965 cfs_duration_t duration = cfs_time_current() -
2966 scrub->os_time_last_checkpoint;
2967 __u64 new_checked = msecs_to_jiffies(scrub->os_new_checked *
2969 __u32 rtime = sf->sf_run_time +
2970 cfs_duration_sec(duration + HALF_SEC);
2973 do_div(new_checked, duration);
2975 do_div(speed, rtime);
2976 rc = seq_printf(m, "run_time: %u seconds\n"
2977 "average_speed: "LPU64" objects/sec\n"
2978 "real-time_speed: "LPU64" objects/sec\n"
2979 "current_position: %u\n"
2980 "lf_scanned: "LPU64"\n"
2981 "lf_reparied: "LPU64"\n"
2982 "lf_failed: "LPU64"\n",
2983 rtime, speed, new_checked, scrub->os_pos_current,
2984 scrub->os_lf_scanned, scrub->os_lf_repaired,
2985 scrub->os_lf_failed);
2987 if (sf->sf_run_time != 0)
2988 do_div(speed, sf->sf_run_time);
2989 rc = seq_printf(m, "run_time: %u seconds\n"
2990 "average_speed: "LPU64" objects/sec\n"
2991 "real-time_speed: N/A\n"
2992 "current_position: N/A\n"
2993 "lf_scanned: "LPU64"\n"
2994 "lf_reparied: "LPU64"\n"
2995 "lf_failed: "LPU64"\n",
2996 sf->sf_run_time, speed, scrub->os_lf_scanned,
2997 scrub->os_lf_repaired, scrub->os_lf_failed);
3001 up_read(&scrub->os_rwsem);
3002 return (rc < 0 ? -ENOSPC : 0);