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++;
591 sf->sf_items_failed++;
592 if (sf->sf_pos_first_inconsistent == 0 ||
593 sf->sf_pos_first_inconsistent > lid->oii_ino)
594 sf->sf_pos_first_inconsistent = lid->oii_ino;
599 /* There may be conflict unlink during the OI scrub,
600 * if happend, then remove the new added OI mapping. */
601 if (ops == DTO_INDEX_INSERT && inode != NULL && !IS_ERR(inode) &&
602 unlikely(inode->i_nlink == 0))
603 osd_scrub_refresh_mapping(info, dev, fid, lid,
604 DTO_INDEX_DELETE, false,
605 (val == SCRUB_NEXT_OSTOBJ ||
606 val == SCRUB_NEXT_OSTOBJ_OLD) ?
607 OI_KNOWN_ON_OST : 0);
608 up_write(&scrub->os_rwsem);
610 if (inode != NULL && !IS_ERR(inode))
614 LASSERT(!list_empty(&oii->oii_list));
616 spin_lock(&scrub->os_lock);
617 list_del_init(&oii->oii_list);
618 spin_unlock(&scrub->os_lock);
621 RETURN(sf->sf_param & SP_FAILOUT ? rc : 0);
626 static int osd_scrub_prep(struct osd_device *dev)
628 struct osd_scrub *scrub = &dev->od_scrub;
629 struct ptlrpc_thread *thread = &scrub->os_thread;
630 struct scrub_file *sf = &scrub->os_file;
631 __u32 flags = scrub->os_start_flags;
633 bool drop_dryrun = false;
636 CDEBUG(D_LFSCK, "%.16s: OI scrub prep, flags = 0x%x\n",
637 osd_scrub2name(scrub), flags);
639 down_write(&scrub->os_rwsem);
640 if (flags & SS_SET_FAILOUT)
641 sf->sf_param |= SP_FAILOUT;
642 else if (flags & SS_CLEAR_FAILOUT)
643 sf->sf_param &= ~SP_FAILOUT;
645 if (flags & SS_SET_DRYRUN) {
646 sf->sf_param |= SP_DRYRUN;
647 } else if (flags & SS_CLEAR_DRYRUN && sf->sf_param & SP_DRYRUN) {
648 sf->sf_param &= ~SP_DRYRUN;
652 if (flags & SS_RESET)
653 osd_scrub_file_reset(scrub,
654 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, 0);
656 if (flags & SS_AUTO_FULL) {
657 scrub->os_full_speed = 1;
658 scrub->os_partial_scan = 0;
659 sf->sf_flags |= SF_AUTO;
660 } else if (flags & SS_AUTO_PARTIAL) {
661 scrub->os_full_speed = 0;
662 scrub->os_partial_scan = 1;
663 sf->sf_flags |= SF_AUTO;
664 } else if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
666 scrub->os_full_speed = 1;
667 scrub->os_partial_scan = 0;
669 scrub->os_full_speed = 0;
670 scrub->os_partial_scan = 0;
673 spin_lock(&scrub->os_lock);
674 scrub->os_in_prior = 0;
675 scrub->os_waiting = 0;
676 scrub->os_paused = 0;
677 scrub->os_in_join = 0;
678 scrub->os_full_scrub = 0;
679 spin_unlock(&scrub->os_lock);
680 scrub->os_new_checked = 0;
681 if (drop_dryrun && sf->sf_pos_first_inconsistent != 0)
682 sf->sf_pos_latest_start = sf->sf_pos_first_inconsistent;
683 else if (sf->sf_pos_last_checkpoint != 0)
684 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
686 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
688 scrub->os_pos_current = sf->sf_pos_latest_start;
689 sf->sf_status = SS_SCANNING;
690 sf->sf_time_latest_start = cfs_time_current_sec();
691 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
692 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
693 rc = osd_scrub_file_store(scrub);
695 spin_lock(&scrub->os_lock);
696 thread_set_flags(thread, SVC_RUNNING);
697 spin_unlock(&scrub->os_lock);
698 wake_up_all(&thread->t_ctl_waitq);
700 up_write(&scrub->os_rwsem);
705 static int osd_scrub_checkpoint(struct osd_scrub *scrub)
707 struct scrub_file *sf = &scrub->os_file;
710 if (likely(cfs_time_before(cfs_time_current(),
711 scrub->os_time_next_checkpoint) ||
712 scrub->os_new_checked == 0))
715 down_write(&scrub->os_rwsem);
716 sf->sf_items_checked += scrub->os_new_checked;
717 scrub->os_new_checked = 0;
718 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
719 sf->sf_time_last_checkpoint = cfs_time_current_sec();
720 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
721 scrub->os_time_last_checkpoint);
722 rc = osd_scrub_file_store(scrub);
723 up_write(&scrub->os_rwsem);
728 static void osd_scrub_post(struct osd_scrub *scrub, int result)
730 struct scrub_file *sf = &scrub->os_file;
733 CDEBUG(D_LFSCK, "%.16s: OI scrub post, result = %d\n",
734 osd_scrub2name(scrub), result);
736 down_write(&scrub->os_rwsem);
737 spin_lock(&scrub->os_lock);
738 thread_set_flags(&scrub->os_thread, SVC_STOPPING);
739 spin_unlock(&scrub->os_lock);
740 if (scrub->os_new_checked > 0) {
741 sf->sf_items_checked += scrub->os_new_checked;
742 scrub->os_new_checked = 0;
743 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
745 sf->sf_time_last_checkpoint = cfs_time_current_sec();
747 struct osd_device *dev =
748 container_of0(scrub, struct osd_device, od_scrub);
750 dev->od_igif_inoi = 1;
751 dev->od_check_ff = 0;
752 sf->sf_status = SS_COMPLETED;
753 if (!(sf->sf_param & SP_DRYRUN)) {
754 memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
755 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
756 SF_UPGRADE | SF_AUTO);
758 sf->sf_time_last_complete = sf->sf_time_last_checkpoint;
759 sf->sf_success_count++;
760 } else if (result == 0) {
761 if (scrub->os_paused)
762 sf->sf_status = SS_PAUSED;
764 sf->sf_status = SS_STOPPED;
766 sf->sf_status = SS_FAILED;
768 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
769 scrub->os_time_last_checkpoint);
770 result = osd_scrub_file_store(scrub);
771 up_write(&scrub->os_rwsem);
776 /* iteration engine */
778 struct osd_iit_param {
779 struct super_block *sb;
780 struct buffer_head *bitmap;
786 typedef int (*osd_iit_next_policy)(struct osd_thread_info *info,
787 struct osd_device *dev,
788 struct osd_iit_param *param,
789 struct osd_idmap_cache **oic,
792 typedef int (*osd_iit_exec_policy)(struct osd_thread_info *info,
793 struct osd_device *dev,
794 struct osd_iit_param *param,
795 struct osd_idmap_cache *oic,
796 bool *noslot, int rc);
798 static int osd_iit_next(struct osd_iit_param *param, __u32 *pos)
800 param->offset = ldiskfs_find_next_bit(param->bitmap->b_data,
801 LDISKFS_INODES_PER_GROUP(param->sb), param->offset);
802 if (param->offset >= LDISKFS_INODES_PER_GROUP(param->sb)) {
803 *pos = 1 + (param->bg+1) * LDISKFS_INODES_PER_GROUP(param->sb);
804 return SCRUB_NEXT_BREAK;
806 *pos = param->gbase + param->offset;
812 * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST
813 * \retval 0: FID-on-MDT
815 static int osd_scrub_check_local_fldb(struct osd_thread_info *info,
816 struct osd_device *dev,
819 /* XXX: The initial OI scrub will scan the top level /O to generate
820 * a small local FLDB according to the <seq>. If the given FID
821 * is in the local FLDB, then it is FID-on-OST; otherwise it's
822 * quite possible for FID-on-MDT. */
824 return SCRUB_NEXT_OSTOBJ_OLD;
829 static int osd_scrub_get_fid(struct osd_thread_info *info,
830 struct osd_device *dev, struct inode *inode,
831 struct lu_fid *fid, bool scrub)
833 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
835 bool has_lma = false;
837 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
840 if (lma->lma_compat & LMAC_NOT_IN_OI ||
841 lma->lma_incompat & LMAI_AGENT)
842 return SCRUB_NEXT_CONTINUE;
844 *fid = lma->lma_self_fid;
848 if (lma->lma_compat & LMAC_FID_ON_OST)
849 return SCRUB_NEXT_OSTOBJ;
851 if (fid_is_idif(fid))
852 return SCRUB_NEXT_OSTOBJ_OLD;
854 /* For local object. */
855 if (fid_is_internal(fid))
858 /* For external visible MDT-object with non-normal FID. */
859 if (fid_is_namespace_visible(fid) && !fid_is_norm(fid))
862 /* For the object with normal FID, it may be MDT-object,
863 * or may be 2.4 OST-object, need further distinguish.
864 * Fall through to next section. */
867 if (rc == -ENODATA || rc == 0) {
868 rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid);
871 /* It is old 2.x (x <= 3) or 1.8 OST-object. */
872 rc = SCRUB_NEXT_OSTOBJ_OLD;
878 /* It is FID-on-OST, but we do not know how
879 * to generate its FID, ignore it directly. */
880 rc = SCRUB_NEXT_CONTINUE;
882 /* It is 2.4 OST-object. */
883 rc = SCRUB_NEXT_OSTOBJ_OLD;
891 if (dev->od_scrub.os_convert_igif) {
892 lu_igif_build(fid, inode->i_ino,
893 inode->i_generation);
895 rc = SCRUB_NEXT_NOLMA;
899 /* It may be FID-on-OST, or may be FID for
900 * non-MDT0, anyway, we do not know how to
901 * generate its FID, ignore it directly. */
902 rc = SCRUB_NEXT_CONTINUE;
907 /* For OI scrub case only: the object has LMA but has no ff
908 * (or ff crashed). It may be MDT-object, may be OST-object
909 * with crashed ff. The last check is local FLDB. */
910 rc = osd_scrub_check_local_fldb(info, dev, fid);
916 static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
917 struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
918 struct super_block *sb, bool scrub)
924 /* Not handle the backend root object and agent parent object.
925 * They are neither visible to namespace nor have OI mappings. */
926 if (unlikely(pos == osd_sb(dev)->s_root->d_inode->i_ino ||
927 pos == osd_remote_parent_ino(dev)))
928 RETURN(SCRUB_NEXT_CONTINUE);
930 osd_id_gen(lid, pos, OSD_OII_NOGEN);
931 inode = osd_iget(info, dev, lid);
934 /* The inode may be removed after bitmap searching, or the
935 * file is new created without inode initialized yet. */
936 if (rc == -ENOENT || rc == -ESTALE)
937 RETURN(SCRUB_NEXT_CONTINUE);
939 CDEBUG(D_LFSCK, "%.16s: fail to read inode, ino# = %u: "
940 "rc = %d\n", LDISKFS_SB(sb)->s_es->s_volume_name,
946 ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
947 /* Only skip it for the first OI scrub accessing. */
948 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
949 GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
952 rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
961 static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
962 struct osd_iit_param *param,
963 struct osd_idmap_cache **oic, const bool noslot)
965 struct osd_scrub *scrub = &dev->od_scrub;
966 struct ptlrpc_thread *thread = &scrub->os_thread;
968 struct osd_inode_id *lid;
971 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
972 struct l_wait_info lwi;
974 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
975 if (likely(lwi.lwi_timeout > 0))
976 l_wait_event(thread->t_ctl_waitq,
977 !list_empty(&scrub->os_inconsistent_items) ||
978 !thread_is_running(thread),
982 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
983 spin_lock(&scrub->os_lock);
984 thread_set_flags(thread, SVC_STOPPING);
985 spin_unlock(&scrub->os_lock);
986 return SCRUB_NEXT_CRASH;
989 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
990 return SCRUB_NEXT_FATAL;
992 if (unlikely(!thread_is_running(thread)))
993 return SCRUB_NEXT_EXIT;
995 if (!list_empty(&scrub->os_inconsistent_items)) {
996 struct osd_inconsistent_item *oii;
998 oii = list_entry(scrub->os_inconsistent_items.next,
999 struct osd_inconsistent_item, oii_list);
1000 *oic = &oii->oii_cache;
1001 scrub->os_in_prior = 1;
1006 return SCRUB_NEXT_WAIT;
1008 rc = osd_iit_next(param, &scrub->os_pos_current);
1012 *oic = &scrub->os_oic;
1013 fid = &(*oic)->oic_fid;
1014 lid = &(*oic)->oic_lid;
1015 rc = osd_iit_iget(info, dev, fid, lid,
1016 scrub->os_pos_current, param->sb, true);
1020 static int osd_preload_next(struct osd_thread_info *info,
1021 struct osd_device *dev, struct osd_iit_param *param,
1022 struct osd_idmap_cache **oic, const bool noslot)
1024 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1025 struct osd_scrub *scrub;
1026 struct ptlrpc_thread *thread;
1029 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1033 scrub = &dev->od_scrub;
1034 thread = &scrub->os_thread;
1035 if (thread_is_running(thread) &&
1036 ooc->ooc_pos_preload >= scrub->os_pos_current)
1037 return SCRUB_NEXT_EXIT;
1039 rc = osd_iit_iget(info, dev,
1040 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1041 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1042 ooc->ooc_pos_preload, param->sb, false);
1043 /* If succeed, it needs to move forward; otherwise up layer LFSCK may
1044 * ignore the failure, so it still need to skip the inode next time. */
1045 ooc->ooc_pos_preload = param->gbase + ++(param->offset);
1050 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1052 spin_lock(&scrub->os_lock);
1053 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1054 !list_empty(&scrub->os_inconsistent_items) ||
1055 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1056 scrub->os_waiting = 0;
1058 scrub->os_waiting = 1;
1059 spin_unlock(&scrub->os_lock);
1061 return !scrub->os_waiting;
1064 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1065 struct osd_iit_param *param,
1066 struct osd_idmap_cache *oic, bool *noslot, int rc)
1068 struct l_wait_info lwi = { 0 };
1069 struct osd_scrub *scrub = &dev->od_scrub;
1070 struct scrub_file *sf = &scrub->os_file;
1071 struct ptlrpc_thread *thread = &scrub->os_thread;
1072 struct osd_otable_it *it = dev->od_otable_it;
1073 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1076 case SCRUB_NEXT_CONTINUE:
1078 case SCRUB_NEXT_WAIT:
1080 case SCRUB_NEXT_NOSCRUB:
1081 down_write(&scrub->os_rwsem);
1082 scrub->os_new_checked++;
1083 sf->sf_items_noscrub++;
1084 up_write(&scrub->os_rwsem);
1088 rc = osd_scrub_check_update(info, dev, oic, rc);
1092 rc = osd_scrub_checkpoint(scrub);
1094 CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: "
1095 "rc = %d\n", osd_scrub2name(scrub),
1096 scrub->os_pos_current, rc);
1097 /* Continue, as long as the scrub itself can go ahead. */
1100 if (scrub->os_in_prior) {
1101 scrub->os_in_prior = 0;
1106 scrub->os_pos_current = param->gbase + ++(param->offset);
1109 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1110 ooc->ooc_pos_preload < scrub->os_pos_current) {
1111 spin_lock(&scrub->os_lock);
1112 it->ooi_waiting = 0;
1113 wake_up_all(&thread->t_ctl_waitq);
1114 spin_unlock(&scrub->os_lock);
1117 if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
1120 if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) {
1126 l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
1129 if (ooc != NULL && osd_scrub_has_window(scrub, ooc))
1136 static int osd_preload_exec(struct osd_thread_info *info,
1137 struct osd_device *dev, struct osd_iit_param *param,
1138 struct osd_idmap_cache *oic, bool *noslot, int rc)
1140 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1143 ooc->ooc_cached_items++;
1144 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1145 ~OSD_OTABLE_IT_CACHE_MASK;
1147 return rc > 0 ? 0 : rc;
1150 #define SCRUB_IT_ALL 1
1151 #define SCRUB_IT_CRASH 2
1153 static void osd_scrub_join(struct osd_device *dev, __u32 flags,
1156 struct osd_scrub *scrub = &dev->od_scrub;
1157 struct ptlrpc_thread *thread = &scrub->os_thread;
1158 struct scrub_file *sf = &scrub->os_file;
1162 LASSERT(!(flags & SS_AUTO_PARTIAL));
1164 down_write(&scrub->os_rwsem);
1165 scrub->os_in_join = 1;
1166 if (flags & SS_SET_FAILOUT)
1167 sf->sf_param |= SP_FAILOUT;
1168 else if (flags & SS_CLEAR_FAILOUT)
1169 sf->sf_param &= ~SP_FAILOUT;
1171 if (flags & SS_SET_DRYRUN)
1172 sf->sf_param |= SP_DRYRUN;
1173 else if (flags & SS_CLEAR_DRYRUN)
1174 sf->sf_param &= ~SP_DRYRUN;
1176 if (flags & SS_RESET) {
1177 osd_scrub_file_reset(scrub,
1178 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1179 inconsistent ? SF_INCONSISTENT : 0);
1180 sf->sf_status = SS_SCANNING;
1183 if (flags & SS_AUTO_FULL) {
1184 sf->sf_flags |= SF_AUTO;
1185 scrub->os_full_speed = 1;
1188 if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
1189 scrub->os_full_speed = 1;
1191 scrub->os_full_speed = 0;
1193 scrub->os_new_checked = 0;
1194 if (sf->sf_pos_last_checkpoint != 0)
1195 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
1197 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
1199 scrub->os_pos_current = sf->sf_pos_latest_start;
1200 sf->sf_time_latest_start = cfs_time_current_sec();
1201 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
1202 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
1203 rc = osd_scrub_file_store(scrub);
1205 CDEBUG(D_LFSCK, "%.16s: fail to store scrub file when join "
1206 "the OI scrub: rc = %d\n", osd_scrub2name(scrub), rc);
1208 spin_lock(&scrub->os_lock);
1209 scrub->os_waiting = 0;
1210 scrub->os_paused = 0;
1211 scrub->os_partial_scan = 0;
1212 scrub->os_in_join = 0;
1213 scrub->os_full_scrub = 0;
1214 spin_unlock(&scrub->os_lock);
1215 wake_up_all(&thread->t_ctl_waitq);
1216 up_write(&scrub->os_rwsem);
1221 static int osd_inode_iteration(struct osd_thread_info *info,
1222 struct osd_device *dev, __u32 max, bool preload)
1224 struct osd_scrub *scrub = &dev->od_scrub;
1225 struct ptlrpc_thread *thread = &scrub->os_thread;
1226 struct scrub_file *sf = &scrub->os_file;
1227 osd_iit_next_policy next;
1228 osd_iit_exec_policy exec;
1231 struct osd_iit_param param = { NULL };
1232 struct l_wait_info lwi = { 0 };
1238 param.sb = osd_sb(dev);
1242 while (scrub->os_partial_scan && !scrub->os_in_join) {
1243 struct osd_idmap_cache *oic = NULL;
1245 rc = osd_scrub_next(info, dev, ¶m, &oic, noslot);
1247 case SCRUB_NEXT_EXIT:
1249 case SCRUB_NEXT_CRASH:
1250 RETURN(SCRUB_IT_CRASH);
1251 case SCRUB_NEXT_FATAL:
1253 case SCRUB_NEXT_WAIT: {
1254 struct kstatfs *ksfs = &info->oti_ksfs;
1257 if (dev->od_full_scrub_ratio == OFSR_NEVER ||
1258 unlikely(sf->sf_items_updated_prior == 0))
1261 if (dev->od_full_scrub_ratio == OFSR_DIRECTLY ||
1262 scrub->os_full_scrub) {
1263 osd_scrub_join(dev, SS_AUTO_FULL | SS_RESET,
1268 rc = param.sb->s_op->statfs(param.sb->s_root, ksfs);
1270 __u64 used = ksfs->f_files - ksfs->f_ffree;
1272 do_div(used, sf->sf_items_updated_prior);
1273 /* If we hit too much inconsistent OI
1274 * mappings during the partial scan,
1275 * then scan the device completely. */
1276 if (used < dev->od_full_scrub_ratio) {
1278 SS_AUTO_FULL | SS_RESET, true);
1284 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) &&
1288 saved_flags = sf->sf_flags;
1289 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
1290 SF_UPGRADE | SF_AUTO);
1291 sf->sf_status = SS_COMPLETED;
1292 l_wait_event(thread->t_ctl_waitq,
1293 !thread_is_running(thread) ||
1294 !scrub->os_partial_scan ||
1295 scrub->os_in_join ||
1296 !list_empty(&scrub->os_inconsistent_items),
1298 sf->sf_flags = saved_flags;
1299 sf->sf_status = SS_SCANNING;
1301 if (unlikely(!thread_is_running(thread)))
1304 if (!scrub->os_partial_scan || scrub->os_in_join)
1310 LASSERTF(rc == 0, "rc = %d\n", rc);
1312 osd_scrub_exec(info, dev, ¶m, oic, &noslot, rc);
1319 l_wait_event(thread->t_ctl_waitq,
1320 !thread_is_running(thread) || !scrub->os_in_join,
1323 if (unlikely(!thread_is_running(thread)))
1329 next = osd_scrub_next;
1330 exec = osd_scrub_exec;
1331 pos = &scrub->os_pos_current;
1332 count = &scrub->os_new_checked;
1334 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1336 next = osd_preload_next;
1337 exec = osd_preload_exec;
1338 pos = &ooc->ooc_pos_preload;
1339 count = &ooc->ooc_cached_items;
1341 limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
1343 while (*pos <= limit && *count < max) {
1344 struct osd_idmap_cache *oic = NULL;
1345 struct ldiskfs_group_desc *desc;
1347 param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
1348 desc = ldiskfs_get_group_desc(param.sb, param.bg, NULL);
1352 ldiskfs_lock_group(param.sb, param.bg);
1353 if (desc->bg_flags & cpu_to_le16(LDISKFS_BG_INODE_UNINIT)) {
1354 ldiskfs_unlock_group(param.sb, param.bg);
1355 *pos = 1 + (param.bg + 1) *
1356 LDISKFS_INODES_PER_GROUP(param.sb);
1359 ldiskfs_unlock_group(param.sb, param.bg);
1361 param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
1362 param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1363 param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
1364 if (param.bitmap == NULL) {
1365 CDEBUG(D_LFSCK, "%.16s: fail to read bitmap for %u, "
1366 "scrub will stop, urgent mode\n",
1367 osd_scrub2name(scrub), (__u32)param.bg);
1371 while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
1374 ldiskfs_itable_unused_count(param.sb, desc) >
1375 LDISKFS_INODES_PER_GROUP(param.sb))
1378 rc = next(info, dev, ¶m, &oic, noslot);
1380 case SCRUB_NEXT_BREAK:
1382 case SCRUB_NEXT_EXIT:
1383 brelse(param.bitmap);
1385 case SCRUB_NEXT_CRASH:
1386 brelse(param.bitmap);
1387 RETURN(SCRUB_IT_CRASH);
1388 case SCRUB_NEXT_FATAL:
1389 brelse(param.bitmap);
1393 rc = exec(info, dev, ¶m, oic, &noslot, rc);
1395 brelse(param.bitmap);
1401 brelse(param.bitmap);
1405 RETURN(SCRUB_IT_ALL);
1409 static int osd_otable_it_preload(const struct lu_env *env,
1410 struct osd_otable_it *it)
1412 struct osd_device *dev = it->ooi_dev;
1413 struct osd_scrub *scrub = &dev->od_scrub;
1414 struct osd_otable_cache *ooc = &it->ooi_cache;
1418 rc = osd_inode_iteration(osd_oti_get(env), dev,
1419 OSD_OTABLE_IT_CACHE_SIZE, true);
1420 if (rc == SCRUB_IT_ALL)
1421 it->ooi_all_cached = 1;
1423 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1424 spin_lock(&scrub->os_lock);
1425 scrub->os_waiting = 0;
1426 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1427 spin_unlock(&scrub->os_lock);
1430 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1433 static int osd_scrub_main(void *args)
1436 struct osd_device *dev = (struct osd_device *)args;
1437 struct osd_scrub *scrub = &dev->od_scrub;
1438 struct ptlrpc_thread *thread = &scrub->os_thread;
1442 rc = lu_env_init(&env, LCT_LOCAL);
1444 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n",
1445 osd_scrub2name(scrub), rc);
1449 rc = osd_scrub_prep(dev);
1451 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n",
1452 osd_scrub2name(scrub), rc);
1456 if (!scrub->os_full_speed && !scrub->os_partial_scan) {
1457 struct l_wait_info lwi = { 0 };
1458 struct osd_otable_it *it = dev->od_otable_it;
1459 struct osd_otable_cache *ooc = &it->ooi_cache;
1461 l_wait_event(thread->t_ctl_waitq,
1462 it->ooi_user_ready || !thread_is_running(thread),
1464 if (unlikely(!thread_is_running(thread)))
1467 scrub->os_pos_current = ooc->ooc_pos_preload;
1470 CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n",
1471 osd_scrub2name(scrub), scrub->os_start_flags,
1472 scrub->os_pos_current);
1474 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1475 if (unlikely(rc == SCRUB_IT_CRASH))
1476 GOTO(out, rc = -EINVAL);
1480 osd_scrub_post(scrub, rc);
1481 CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n",
1482 osd_scrub2name(scrub), scrub->os_pos_current, rc);
1485 while (!list_empty(&scrub->os_inconsistent_items)) {
1486 struct osd_inconsistent_item *oii;
1488 oii = list_entry(scrub->os_inconsistent_items.next,
1489 struct osd_inconsistent_item, oii_list);
1490 list_del_init(&oii->oii_list);
1496 spin_lock(&scrub->os_lock);
1497 thread_set_flags(thread, SVC_STOPPED);
1498 wake_up_all(&thread->t_ctl_waitq);
1499 spin_unlock(&scrub->os_lock);
1503 /* initial OI scrub */
1505 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1506 struct dentry *, filldir_t filldir);
1508 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1509 loff_t offset, __u64 ino, unsigned d_type);
1510 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1511 loff_t offset, __u64 ino, unsigned d_type);
1512 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1513 loff_t offset, __u64 ino, unsigned d_type);
1516 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1517 struct dentry *dentry, filldir_t filldir);
1519 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1520 struct dentry *dentry, filldir_t filldir);
1523 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1524 struct dentry *dentry, filldir_t filldir);
1527 OLF_SCAN_SUBITEMS = 0x0001,
1528 OLF_HIDE_FID = 0x0002,
1529 OLF_SHOW_NAME = 0x0004,
1535 struct lu_fid olm_fid;
1537 scandir_t olm_scandir;
1538 filldir_t olm_filldir;
1541 /* Add the new introduced local files in the list in the future. */
1542 static const struct osd_lf_map osd_lf_maps[] = {
1544 { CATLIST, { FID_SEQ_LOCAL_FILE, LLOG_CATALOGS_OID, 0 }, OLF_SHOW_NAME,
1548 { MOUNT_CONFIGS_DIR, { FID_SEQ_LOCAL_FILE, MGS_CONFIGS_OID, 0 },
1549 OLF_SCAN_SUBITEMS, osd_ios_general_scan,
1550 osd_ios_varfid_fill },
1552 /* NIDTBL_VERSIONS */
1553 { MGS_NIDTBL_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1554 osd_ios_general_scan, osd_ios_varfid_fill },
1557 { "PENDING", { 0, 0, 0 }, 0, NULL, NULL },
1560 { "ROOT", { FID_SEQ_ROOT, FID_OID_ROOT, 0 },
1561 OLF_SCAN_SUBITEMS | OLF_HIDE_FID, osd_ios_ROOT_scan, NULL },
1563 /* changelog_catalog */
1564 { CHANGELOG_CATALOG, { 0, 0, 0 }, 0, NULL, NULL },
1566 /* changelog_users */
1567 { CHANGELOG_USERS, { 0, 0, 0 }, 0, NULL, NULL },
1570 { "fld", { FID_SEQ_LOCAL_FILE, FLD_INDEX_OID, 0 }, OLF_SHOW_NAME,
1574 { LAST_RCVD, { FID_SEQ_LOCAL_FILE, LAST_RECV_OID, 0 }, OLF_SHOW_NAME,
1577 /* lfsck_bookmark */
1578 { "lfsck_bookmark", { 0, 0, 0 }, 0, NULL, NULL },
1581 { LOV_OBJID, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OID, 0 }, OLF_SHOW_NAME,
1585 { LOV_OBJSEQ, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OSEQ, 0 },
1586 OLF_SHOW_NAME, NULL, NULL },
1589 { QMT_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1590 osd_ios_general_scan, osd_ios_varfid_fill },
1593 { QSD_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1594 osd_ios_general_scan, osd_ios_varfid_fill },
1597 { "seq_ctl", { FID_SEQ_LOCAL_FILE, FID_SEQ_CTL_OID, 0 },
1598 OLF_SHOW_NAME, NULL, NULL },
1601 { "seq_srv", { FID_SEQ_LOCAL_FILE, FID_SEQ_SRV_OID, 0 },
1602 OLF_SHOW_NAME, NULL, NULL },
1605 { HEALTH_CHECK, { FID_SEQ_LOCAL_FILE, OFD_HEALTH_CHECK_OID, 0 },
1606 OLF_SHOW_NAME, NULL, NULL },
1608 /* lfsck_namespace */
1609 { "lfsck_namespace", { 0, 0, 0 }, 0, NULL, NULL },
1611 /* OBJECTS, upgrade from old device */
1612 { OBJECTS, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, osd_ios_OBJECTS_scan, NULL },
1614 /* lquota_v2.user, upgrade from old device */
1615 { "lquota_v2.user", { 0, 0, 0 }, 0, NULL, NULL },
1617 /* lquota_v2.group, upgrade from old device */
1618 { "lquota_v2.group", { 0, 0, 0 }, 0, NULL, NULL },
1620 /* LAST_GROUP, upgrade from old device */
1621 { "LAST_GROUP", { FID_SEQ_LOCAL_FILE, OFD_LAST_GROUP_OID, 0 },
1622 OLF_SHOW_NAME, NULL, NULL },
1624 /* SLAVE_LOG, llog for destroy slave stripes of striped dir */
1625 { "SLAVE_LOG", { FID_SEQ_LOCAL_FILE, SLAVE_LLOG_CATALOGS_OID, 0 },
1626 OLF_SHOW_NAME, NULL, NULL },
1629 { "lost+found", { FID_SEQ_LOCAL_FILE, OSD_LPF_OID, 0 },
1630 OLF_SCAN_SUBITEMS, osd_ios_general_scan, osd_ios_lf_fill },
1632 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1635 /* Add the new introduced files under .lustre/ in the list in the future. */
1636 static const struct osd_lf_map osd_dl_maps[] = {
1638 { "fid", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_OBF, 0 }, 0,
1641 /* .lustre/lost+found */
1642 { "lost+found", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_LPF, 0 }, 0,
1645 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1648 struct osd_ios_item {
1649 struct list_head oii_list;
1650 struct dentry *oii_dentry;
1651 scandir_t oii_scandir;
1652 filldir_t oii_filldir;
1655 struct osd_ios_filldir_buf {
1656 #ifdef HAVE_DIR_CONTEXT
1657 /* please keep it as first member */
1658 struct dir_context ctx;
1660 struct osd_thread_info *oifb_info;
1661 struct osd_device *oifb_dev;
1662 struct dentry *oifb_dentry;
1665 static inline struct dentry *
1666 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1668 struct dentry *dentry;
1670 dentry = ll_lookup_one_len(name, parent, namelen);
1671 if (!IS_ERR(dentry) && dentry->d_inode == NULL) {
1673 return ERR_PTR(-ENOENT);
1680 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1681 scandir_t scandir, filldir_t filldir)
1683 struct osd_ios_item *item;
1686 OBD_ALLOC_PTR(item);
1690 INIT_LIST_HEAD(&item->oii_list);
1691 item->oii_dentry = dget(dentry);
1692 item->oii_scandir = scandir;
1693 item->oii_filldir = filldir;
1694 list_add_tail(&item->oii_list, &dev->od_ios_list);
1700 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
1702 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
1703 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
1704 * reference the inode, or fixed if it is missing or references another inode.
1707 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
1708 struct inode *inode, const struct lu_fid *fid, int flags)
1710 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1711 struct osd_inode_id *id = &info->oti_id;
1712 struct osd_inode_id *id2 = &info->oti_id2;
1713 struct osd_scrub *scrub = &dev->od_scrub;
1714 struct scrub_file *sf = &scrub->os_file;
1719 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
1720 if (rc != 0 && rc != -ENODATA) {
1721 CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
1722 "rc = %d\n", osd_name(dev), rc);
1727 osd_id_gen(id, inode->i_ino, inode->i_generation);
1728 if (rc == -ENODATA) {
1729 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID)
1730 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
1733 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
1735 CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
1736 "scrub: rc = %d\n", osd_name(dev), rc);
1741 if (lma->lma_compat & LMAC_NOT_IN_OI)
1744 tfid = lma->lma_self_fid;
1747 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
1752 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1753 DTO_INDEX_INSERT, true, 0);
1760 if (osd_id_eq_strict(id, id2))
1763 if (!(sf->sf_flags & SF_INCONSISTENT)) {
1764 osd_scrub_file_reset(scrub,
1765 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1767 rc = osd_scrub_file_store(scrub);
1772 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1773 DTO_INDEX_UPDATE, true, 0);
1781 * It scans the /lost+found, and for the OST-object (with filter_fid
1782 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
1784 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1785 loff_t offset, __u64 ino, unsigned d_type)
1787 struct osd_ios_filldir_buf *fill_buf = buf;
1788 struct osd_thread_info *info = fill_buf->oifb_info;
1789 struct osd_device *dev = fill_buf->oifb_dev;
1790 struct lu_fid *fid = &info->oti_fid;
1791 struct osd_scrub *scrub = &dev->od_scrub;
1792 struct dentry *parent = fill_buf->oifb_dentry;
1793 struct dentry *child;
1794 struct inode *dir = parent->d_inode;
1795 struct inode *inode;
1799 /* skip any '.' started names */
1803 scrub->os_lf_scanned++;
1804 child = osd_ios_lookup_one_len(name, parent, namelen);
1805 if (IS_ERR(child)) {
1806 CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
1807 osd_name(dev), namelen, name, (int)PTR_ERR(child));
1811 inode = child->d_inode;
1812 if (S_ISDIR(inode->i_mode)) {
1813 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1816 CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
1817 "rc = %d\n", osd_name(dev), namelen, name, rc);
1821 if (!S_ISREG(inode->i_mode))
1824 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
1825 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
1826 rc = osd_obj_map_recover(info, dev, dir, child, fid);
1828 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
1829 "/lost+found.\n", namelen, name, PFID(fid));
1830 scrub->os_lf_repaired++;
1832 CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
1834 osd_name(dev), namelen, name, PFID(fid), rc);
1838 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
1839 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
1840 * can process them in furtuer. */
1846 scrub->os_lf_failed++;
1848 /* skip the failure to make the scanning to continue. */
1852 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1853 loff_t offset, __u64 ino, unsigned d_type)
1855 struct osd_ios_filldir_buf *fill_buf = buf;
1856 struct osd_device *dev = fill_buf->oifb_dev;
1857 struct dentry *child;
1861 /* skip any '.' started names */
1865 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1867 RETURN(PTR_ERR(child));
1869 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1871 if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
1872 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1873 osd_ios_varfid_fill);
1879 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1880 loff_t offset, __u64 ino, unsigned d_type)
1882 struct osd_ios_filldir_buf *fill_buf = buf;
1883 struct osd_device *dev = fill_buf->oifb_dev;
1884 const struct osd_lf_map *map;
1885 struct dentry *child;
1889 /* skip any '.' started names */
1893 for (map = osd_dl_maps; map->olm_name != NULL; map++) {
1894 if (strlen(map->olm_name) != namelen)
1897 if (strncmp(map->olm_name, name, namelen) == 0)
1901 if (map->olm_name == NULL)
1904 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1906 RETURN(PTR_ERR(child));
1908 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1909 &map->olm_fid, map->olm_flags);
1915 static int osd_ios_root_fill(void *buf, const char *name, int namelen,
1916 loff_t offset, __u64 ino, unsigned d_type)
1918 struct osd_ios_filldir_buf *fill_buf = buf;
1919 struct osd_device *dev = fill_buf->oifb_dev;
1920 const struct osd_lf_map *map;
1921 struct dentry *child;
1925 /* skip any '.' started names */
1929 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
1930 if (strlen(map->olm_name) != namelen)
1933 if (strncmp(map->olm_name, name, namelen) == 0)
1937 if (map->olm_name == NULL)
1940 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1942 RETURN(PTR_ERR(child));
1944 if (!(map->olm_flags & OLF_NO_OI))
1945 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1946 &map->olm_fid, map->olm_flags);
1947 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
1948 rc = osd_ios_new_item(dev, child, map->olm_scandir,
1956 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1957 struct dentry *dentry, filldir_t filldir)
1959 struct osd_ios_filldir_buf buf = {
1960 #ifdef HAVE_DIR_CONTEXT
1961 .ctx.actor = filldir,
1965 .oifb_dentry = dentry };
1966 struct file *filp = &info->oti_file;
1967 struct inode *inode = dentry->d_inode;
1968 const struct file_operations *fops = inode->i_fop;
1972 LASSERT(filldir != NULL);
1975 filp->f_dentry = dentry;
1976 filp->f_mode = FMODE_64BITHASH;
1977 filp->f_mapping = inode->i_mapping;
1979 filp->private_data = NULL;
1980 set_file_inode(filp, inode);
1982 #ifdef HAVE_DIR_CONTEXT
1983 buf.ctx.pos = filp->f_pos;
1984 rc = fops->iterate(filp, &buf.ctx);
1985 filp->f_pos = buf.ctx.pos;
1987 rc = fops->readdir(filp, &buf, filldir);
1989 fops->release(inode, filp);
1995 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1996 struct dentry *dentry, filldir_t filldir)
1998 struct osd_scrub *scrub = &dev->od_scrub;
1999 struct scrub_file *sf = &scrub->os_file;
2000 struct dentry *child;
2004 /* It is existing MDT0 device. We only allow the case of object without
2005 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
2006 * can generate IGIF mode FID for the object and related OI mapping. If
2007 * it is on other MDTs, then becuase file-level backup/restore, related
2008 * OI mapping may be invalid already, we do not know which is the right
2009 * FID for the object. We only allow IGIF objects to reside on the MDT0.
2011 * XXX: For the case of object on non-MDT0 device with neither LMA nor
2012 * "fid" xattr, then something crashed. We cannot re-generate the
2013 * FID directly, instead, the OI scrub will scan the OI structure
2014 * and try to re-generate the LMA from the OI mapping. But if the
2015 * OI mapping crashed or lost also, then we have to give up under
2016 * double failure cases. */
2017 scrub->os_convert_igif = 1;
2018 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
2019 strlen(dot_lustre_name));
2020 if (IS_ERR(child)) {
2021 rc = PTR_ERR(child);
2022 if (rc == -ENOENT) {
2023 /* It is 1.8 MDT device. */
2024 if (!(sf->sf_flags & SF_UPGRADE)) {
2025 osd_scrub_file_reset(scrub,
2026 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
2028 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2029 rc = osd_scrub_file_store(scrub);
2035 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
2036 * so the client will get IGIF for the ".lustre" object when
2039 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
2040 * it does not know whether there are some old clients cached
2041 * the ".lustre" IGIF during the upgrading. Two choices:
2043 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
2044 * It will allow the old connected clients to access the
2045 * ".lustre" with cached IGIF. But it will cause others
2046 * on the MDT failed to check "fid_is_dot_lustre()".
2048 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
2049 * for ".lustre" in spite of whether there are some clients
2050 * cached the ".lustre" IGIF or not. It enables the check
2051 * "fid_is_dot_lustre()" on the MDT, although it will cause
2052 * that the old connected clients cannot access the ".lustre"
2053 * with the cached IGIF.
2055 * Usually, it is rare case for the old connected clients
2056 * to access the ".lustre" with cached IGIF. So we prefer
2057 * to the solution 2). */
2058 rc = osd_ios_scan_one(info, dev, child->d_inode,
2059 &LU_DOT_LUSTRE_FID, 0);
2061 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2070 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
2071 struct dentry *dentry, filldir_t filldir)
2073 struct osd_scrub *scrub = &dev->od_scrub;
2074 struct scrub_file *sf = &scrub->os_file;
2075 struct dentry *child;
2079 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
2080 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2081 rc = osd_scrub_file_store(scrub);
2086 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
2087 if (!IS_ERR(child)) {
2088 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2091 rc = PTR_ERR(child);
2094 if (rc != 0 && rc != -ENOENT)
2097 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
2098 if (!IS_ERR(child)) {
2099 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2102 rc = PTR_ERR(child);
2111 static int osd_initial_OI_scrub(struct osd_thread_info *info,
2112 struct osd_device *dev)
2114 struct osd_ios_item *item = NULL;
2115 scandir_t scandir = osd_ios_general_scan;
2116 filldir_t filldir = osd_ios_root_fill;
2117 struct dentry *dentry = osd_sb(dev)->s_root;
2118 const struct osd_lf_map *map = osd_lf_maps;
2122 /* Lookup IGIF in OI by force for initial OI scrub. */
2123 dev->od_igif_inoi = 1;
2126 rc = scandir(info, dev, dentry, filldir);
2128 dput(item->oii_dentry);
2135 if (list_empty(&dev->od_ios_list))
2138 item = list_entry(dev->od_ios_list.next,
2139 struct osd_ios_item, oii_list);
2140 list_del_init(&item->oii_list);
2142 LASSERT(item->oii_scandir != NULL);
2143 scandir = item->oii_scandir;
2144 filldir = item->oii_filldir;
2145 dentry = item->oii_dentry;
2148 while (!list_empty(&dev->od_ios_list)) {
2149 item = list_entry(dev->od_ios_list.next,
2150 struct osd_ios_item, oii_list);
2151 list_del_init(&item->oii_list);
2152 dput(item->oii_dentry);
2159 /* There maybe the case that the object has been removed, but its OI
2160 * mapping is still in the OI file, such as the "CATALOGS" after MDT
2161 * file-level backup/restore. So here cleanup the stale OI mappings. */
2162 while (map->olm_name != NULL) {
2163 struct dentry *child;
2165 if (fid_is_zero(&map->olm_fid)) {
2170 child = osd_ios_lookup_one_len(map->olm_name,
2171 osd_sb(dev)->s_root,
2172 strlen(map->olm_name));
2175 else if (PTR_ERR(child) == -ENOENT)
2176 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
2177 NULL, DTO_INDEX_DELETE,
2185 char *osd_lf_fid2name(const struct lu_fid *fid)
2187 const struct osd_lf_map *map = osd_lf_maps;
2189 while (map->olm_name != NULL) {
2190 if (!lu_fid_eq(fid, &map->olm_fid)) {
2195 if (map->olm_flags & OLF_SHOW_NAME)
2196 return map->olm_name;
2204 /* OI scrub start/stop */
2206 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
2208 struct osd_scrub *scrub = &dev->od_scrub;
2209 struct ptlrpc_thread *thread = &scrub->os_thread;
2210 struct l_wait_info lwi = { 0 };
2211 struct task_struct *task;
2215 /* os_lock: sync status between stop and scrub thread */
2216 spin_lock(&scrub->os_lock);
2219 if (thread_is_running(thread)) {
2220 spin_unlock(&scrub->os_lock);
2221 if (!(scrub->os_file.sf_flags & SF_AUTO) ||
2222 (flags & (SS_AUTO_FULL | SS_AUTO_PARTIAL)))
2225 osd_scrub_join(dev, flags, false);
2226 spin_lock(&scrub->os_lock);
2227 if (!thread_is_running(thread))
2230 spin_unlock(&scrub->os_lock);
2234 if (unlikely(thread_is_stopping(thread))) {
2235 spin_unlock(&scrub->os_lock);
2236 l_wait_event(thread->t_ctl_waitq,
2237 thread_is_stopped(thread),
2239 spin_lock(&scrub->os_lock);
2242 spin_unlock(&scrub->os_lock);
2244 if (scrub->os_file.sf_status == SS_COMPLETED) {
2245 if (!(flags & SS_SET_FAILOUT))
2246 flags |= SS_CLEAR_FAILOUT;
2248 if (!(flags & SS_SET_DRYRUN))
2249 flags |= SS_CLEAR_DRYRUN;
2254 scrub->os_start_flags = flags;
2255 thread_set_flags(thread, 0);
2256 task = kthread_run(osd_scrub_main, dev, "OI_scrub");
2259 CERROR("%.16s: cannot start iteration thread: rc = %d\n",
2260 osd_scrub2name(scrub), rc);
2264 l_wait_event(thread->t_ctl_waitq,
2265 thread_is_running(thread) || thread_is_stopped(thread),
2271 int osd_scrub_start(struct osd_device *dev, __u32 flags)
2276 /* od_otable_mutex: prevent curcurrent start/stop */
2277 mutex_lock(&dev->od_otable_mutex);
2278 rc = do_osd_scrub_start(dev, flags);
2279 mutex_unlock(&dev->od_otable_mutex);
2281 RETURN(rc == -EALREADY ? 0 : rc);
2284 static void do_osd_scrub_stop(struct osd_scrub *scrub)
2286 struct ptlrpc_thread *thread = &scrub->os_thread;
2287 struct l_wait_info lwi = { 0 };
2289 /* os_lock: sync status between stop and scrub thread */
2290 spin_lock(&scrub->os_lock);
2291 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
2292 thread_set_flags(thread, SVC_STOPPING);
2293 spin_unlock(&scrub->os_lock);
2294 wake_up_all(&thread->t_ctl_waitq);
2295 l_wait_event(thread->t_ctl_waitq,
2296 thread_is_stopped(thread),
2298 /* Do not skip the last lock/unlock, which can guarantee that
2299 * the caller cannot return until the OI scrub thread exit. */
2300 spin_lock(&scrub->os_lock);
2302 spin_unlock(&scrub->os_lock);
2305 static void osd_scrub_stop(struct osd_device *dev)
2307 /* od_otable_mutex: prevent curcurrent start/stop */
2308 mutex_lock(&dev->od_otable_mutex);
2309 dev->od_scrub.os_paused = 1;
2310 do_osd_scrub_stop(&dev->od_scrub);
2311 mutex_unlock(&dev->od_otable_mutex);
2314 /* OI scrub setup/cleanup */
2316 static const char osd_scrub_name[] = "OI_scrub";
2318 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2320 struct osd_thread_info *info = osd_oti_get(env);
2321 struct osd_scrub *scrub = &dev->od_scrub;
2322 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2323 struct scrub_file *sf = &scrub->os_file;
2324 struct super_block *sb = osd_sb(dev);
2325 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2326 struct lvfs_run_ctxt saved;
2328 struct inode *inode;
2329 struct lu_fid *fid = &info->oti_fid;
2334 memset(scrub, 0, sizeof(*scrub));
2335 OBD_SET_CTXT_MAGIC(ctxt);
2336 ctxt->pwdmnt = dev->od_mnt;
2337 ctxt->pwd = dev->od_mnt->mnt_root;
2338 ctxt->fs = get_ds();
2340 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2341 init_rwsem(&scrub->os_rwsem);
2342 spin_lock_init(&scrub->os_lock);
2343 INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2345 push_ctxt(&saved, ctxt);
2346 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2348 pop_ctxt(&saved, ctxt);
2349 RETURN(PTR_ERR(filp));
2352 inode = filp->f_dentry->d_inode;
2353 /* 'What the @fid is' is not imporatant, because the object
2354 * has no OI mapping, and only is visible inside the OSD.*/
2355 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2356 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2358 filp_close(filp, NULL);
2359 pop_ctxt(&saved, ctxt);
2363 scrub->os_inode = igrab(inode);
2364 filp_close(filp, NULL);
2365 pop_ctxt(&saved, ctxt);
2367 rc = osd_scrub_file_load(scrub);
2368 if (rc == -ENOENT) {
2369 osd_scrub_file_init(scrub, es->s_uuid);
2370 /* If the "/O" dir does not exist when mount (indicated by
2371 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2372 * then it is quite probably that the device is a new one,
2373 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2375 * For the rare case that "/O" and "OI_scrub" both lost on
2376 * an old device, it can be found and cleared later.
2378 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2379 * need to check "filter_fid_old" and to convert it to
2380 * "filter_fid" for each object, and all the IGIF should
2381 * have their FID mapping in OI files already. */
2382 if (dev->od_maybe_new)
2383 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2385 } else if (rc != 0) {
2386 GOTO(cleanup_inode, rc);
2388 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2389 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2391 } else if (sf->sf_status == SS_SCANNING) {
2392 sf->sf_status = SS_CRASHED;
2397 if (sf->sf_pos_last_checkpoint != 0)
2398 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2400 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2403 rc = osd_scrub_file_store(scrub);
2405 GOTO(cleanup_inode, rc);
2408 /* Initialize OI files. */
2409 rc = osd_oi_init(info, dev);
2411 GOTO(cleanup_inode, rc);
2413 rc = osd_initial_OI_scrub(info, dev);
2415 GOTO(cleanup_oi, rc);
2417 if (sf->sf_flags & SF_UPGRADE ||
2418 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2419 sf->sf_success_count > 0)) {
2420 dev->od_igif_inoi = 0;
2421 dev->od_check_ff = dev->od_is_ost;
2423 dev->od_igif_inoi = 1;
2424 dev->od_check_ff = 0;
2427 if (sf->sf_flags & SF_INCONSISTENT)
2428 /* The 'od_igif_inoi' will be set under the
2430 * 1) new created system, or
2431 * 2) restored from file-level backup, or
2432 * 3) the upgrading completed.
2434 * The 'od_igif_inoi' may be cleared by OI scrub
2435 * later if found that the system is upgrading. */
2436 dev->od_igif_inoi = 1;
2438 if (!dev->od_noscrub &&
2439 ((sf->sf_status == SS_PAUSED) ||
2440 (sf->sf_status == SS_CRASHED &&
2441 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2442 SF_UPGRADE | SF_AUTO)) ||
2443 (sf->sf_status == SS_INIT &&
2444 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2446 rc = osd_scrub_start(dev, SS_AUTO_FULL);
2449 GOTO(cleanup_oi, rc);
2451 /* it is possible that dcache entries may keep objects after they are
2452 * deleted by OSD. While it looks safe this can cause object data to
2453 * stay until umount causing failures in tests calculating free space,
2454 * e.g. replay-ost-single. Since those dcache entries are not used
2455 * anymore let's just free them after use here */
2456 shrink_dcache_sb(sb);
2460 osd_oi_fini(info, dev);
2462 iput(scrub->os_inode);
2463 scrub->os_inode = NULL;
2468 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2470 struct osd_scrub *scrub = &dev->od_scrub;
2472 LASSERT(dev->od_otable_it == NULL);
2474 if (scrub->os_inode != NULL) {
2475 osd_scrub_stop(dev);
2476 iput(scrub->os_inode);
2477 scrub->os_inode = NULL;
2479 if (dev->od_oi_table != NULL)
2480 osd_oi_fini(osd_oti_get(env), dev);
2483 /* object table based iteration APIs */
2485 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2486 struct dt_object *dt, __u32 attr,
2487 struct lustre_capa *capa)
2489 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2490 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2491 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2492 struct osd_scrub *scrub = &dev->od_scrub;
2493 struct osd_otable_it *it;
2498 /* od_otable_mutex: prevent curcurrent init/fini */
2499 mutex_lock(&dev->od_otable_mutex);
2500 if (dev->od_otable_it != NULL)
2501 GOTO(out, it = ERR_PTR(-EALREADY));
2505 GOTO(out, it = ERR_PTR(-ENOMEM));
2507 dev->od_otable_it = it;
2509 it->ooi_cache.ooc_consumer_idx = -1;
2510 if (flags & DOIF_OUTUSED)
2511 it->ooi_used_outside = 1;
2513 if (flags & DOIF_RESET)
2516 if (valid & DOIV_ERROR_HANDLE) {
2517 if (flags & DOIF_FAILOUT)
2518 start |= SS_SET_FAILOUT;
2520 start |= SS_CLEAR_FAILOUT;
2523 if (valid & DOIV_DRYRUN) {
2524 if (flags & DOIF_DRYRUN)
2525 start |= SS_SET_DRYRUN;
2527 start |= SS_CLEAR_DRYRUN;
2530 rc = do_osd_scrub_start(dev, start & ~SS_AUTO_PARTIAL);
2531 if (rc < 0 && rc != -EALREADY) {
2532 dev->od_otable_it = NULL;
2534 GOTO(out, it = ERR_PTR(rc));
2537 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2542 mutex_unlock(&dev->od_otable_mutex);
2543 return (struct dt_it *)it;
2546 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2548 struct osd_otable_it *it = (struct osd_otable_it *)di;
2549 struct osd_device *dev = it->ooi_dev;
2551 /* od_otable_mutex: prevent curcurrent init/fini */
2552 mutex_lock(&dev->od_otable_mutex);
2553 do_osd_scrub_stop(&dev->od_scrub);
2554 LASSERT(dev->od_otable_it == it);
2556 dev->od_otable_it = NULL;
2557 mutex_unlock(&dev->od_otable_mutex);
2561 static int osd_otable_it_get(const struct lu_env *env,
2562 struct dt_it *di, const struct dt_key *key)
2567 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2572 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2574 spin_lock(&scrub->os_lock);
2575 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2576 scrub->os_waiting ||
2577 !thread_is_running(&scrub->os_thread))
2578 it->ooi_waiting = 0;
2580 it->ooi_waiting = 1;
2581 spin_unlock(&scrub->os_lock);
2583 return !it->ooi_waiting;
2586 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2588 struct osd_otable_it *it = (struct osd_otable_it *)di;
2589 struct osd_device *dev = it->ooi_dev;
2590 struct osd_scrub *scrub = &dev->od_scrub;
2591 struct osd_otable_cache *ooc = &it->ooi_cache;
2592 struct ptlrpc_thread *thread = &scrub->os_thread;
2593 struct l_wait_info lwi = { 0 };
2597 LASSERT(it->ooi_user_ready);
2600 if (!thread_is_running(thread) && !it->ooi_used_outside)
2603 if (ooc->ooc_cached_items > 0) {
2604 ooc->ooc_cached_items--;
2605 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
2606 ~OSD_OTABLE_IT_CACHE_MASK;
2610 if (it->ooi_all_cached) {
2611 l_wait_event(thread->t_ctl_waitq,
2612 !thread_is_running(thread),
2617 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
2618 spin_lock(&scrub->os_lock);
2619 scrub->os_waiting = 0;
2620 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2621 spin_unlock(&scrub->os_lock);
2624 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
2625 l_wait_event(thread->t_ctl_waitq,
2626 osd_otable_it_wakeup(scrub, it),
2629 if (!thread_is_running(thread) && !it->ooi_used_outside)
2632 rc = osd_otable_it_preload(env, it);
2639 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
2640 const struct dt_it *di)
2645 static int osd_otable_it_key_size(const struct lu_env *env,
2646 const struct dt_it *di)
2648 return sizeof(__u64);
2651 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
2652 struct dt_rec *rec, __u32 attr)
2654 struct osd_otable_it *it = (struct osd_otable_it *)di;
2655 struct osd_otable_cache *ooc = &it->ooi_cache;
2657 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
2659 /* Filter out Invald FID already. */
2660 LASSERTF(fid_is_sane((struct lu_fid *)rec),
2661 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
2662 PFID((struct lu_fid *)rec),
2663 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
2668 static __u64 osd_otable_it_store(const struct lu_env *env,
2669 const struct dt_it *di)
2671 struct osd_otable_it *it = (struct osd_otable_it *)di;
2672 struct osd_otable_cache *ooc = &it->ooi_cache;
2675 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
2676 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
2678 hash = ooc->ooc_pos_preload;
2683 * Set the OSD layer iteration start position as the specified hash.
2685 static int osd_otable_it_load(const struct lu_env *env,
2686 const struct dt_it *di, __u64 hash)
2688 struct osd_otable_it *it = (struct osd_otable_it *)di;
2689 struct osd_device *dev = it->ooi_dev;
2690 struct osd_otable_cache *ooc = &it->ooi_cache;
2691 struct osd_scrub *scrub = &dev->od_scrub;
2695 /* Forbid to set iteration position after iteration started. */
2696 if (it->ooi_user_ready)
2699 if (hash > OSD_OTABLE_MAX_HASH)
2700 hash = OSD_OTABLE_MAX_HASH;
2702 ooc->ooc_pos_preload = hash;
2703 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
2704 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
2706 it->ooi_user_ready = 1;
2707 if (!scrub->os_full_speed)
2708 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2710 /* Unplug OSD layer iteration by the first next() call. */
2711 rc = osd_otable_it_next(env, (struct dt_it *)it);
2716 static int osd_otable_it_key_rec(const struct lu_env *env,
2717 const struct dt_it *di, void *key_rec)
2722 const struct dt_index_operations osd_otable_ops = {
2724 .init = osd_otable_it_init,
2725 .fini = osd_otable_it_fini,
2726 .get = osd_otable_it_get,
2727 .put = osd_otable_it_put,
2728 .next = osd_otable_it_next,
2729 .key = osd_otable_it_key,
2730 .key_size = osd_otable_it_key_size,
2731 .rec = osd_otable_it_rec,
2732 .store = osd_otable_it_store,
2733 .load = osd_otable_it_load,
2734 .key_rec = osd_otable_it_key_rec,
2738 /* high priority inconsistent items list APIs */
2740 #define SCRUB_BAD_OIMAP_DECAY_INTERVAL 60
2742 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
2745 struct osd_inconsistent_item *oii;
2746 struct osd_scrub *scrub = &dev->od_scrub;
2747 struct ptlrpc_thread *thread = &scrub->os_thread;
2752 if (unlikely(oii == NULL))
2755 INIT_LIST_HEAD(&oii->oii_list);
2756 oii->oii_cache = *oic;
2757 oii->oii_insert = insert;
2759 if (scrub->os_partial_scan) {
2760 __u64 now = cfs_time_current_sec();
2762 /* If there haven't been errors in a long time,
2763 * decay old count until either the errors are
2764 * gone or we reach the current interval. */
2765 while (unlikely(scrub->os_bad_oimap_count > 0 &&
2766 scrub->os_bad_oimap_time +
2767 SCRUB_BAD_OIMAP_DECAY_INTERVAL < now)) {
2768 scrub->os_bad_oimap_count >>= 1;
2769 scrub->os_bad_oimap_time +=
2770 SCRUB_BAD_OIMAP_DECAY_INTERVAL;
2773 scrub->os_bad_oimap_time = now;
2774 if (++scrub->os_bad_oimap_count >
2775 dev->od_full_scrub_threshold_rate)
2776 scrub->os_full_scrub = 1;
2779 spin_lock(&scrub->os_lock);
2780 if (unlikely(!thread_is_running(thread))) {
2781 spin_unlock(&scrub->os_lock);
2786 if (list_empty(&scrub->os_inconsistent_items))
2788 list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
2789 spin_unlock(&scrub->os_lock);
2792 wake_up_all(&thread->t_ctl_waitq);
2797 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
2798 struct osd_inode_id *id)
2800 struct osd_scrub *scrub = &dev->od_scrub;
2801 struct osd_inconsistent_item *oii;
2804 spin_lock(&scrub->os_lock);
2805 list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
2806 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
2807 *id = oii->oii_cache.oic_lid;
2808 spin_unlock(&scrub->os_lock);
2812 spin_unlock(&scrub->os_lock);
2819 static const char *scrub_status_names[] = {
2830 static const char *scrub_flags_names[] = {
2838 static const char *scrub_param_names[] = {
2844 static int scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
2851 rc = seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
2855 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
2858 rc = seq_printf(m, "%s%c", names[i],
2859 bits != 0 ? ',' : '\n');
2867 static int scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
2872 rc = seq_printf(m, "%s: "LPU64" seconds\n", prefix,
2873 cfs_time_current_sec() - time);
2875 rc = seq_printf(m, "%s: N/A\n", prefix);
2879 static int scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
2884 rc = seq_printf(m, "%s: "LPU64"\n", prefix, pos);
2886 rc = seq_printf(m, "%s: N/A\n", prefix);
2890 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
2892 struct osd_scrub *scrub = &dev->od_scrub;
2893 struct scrub_file *sf = &scrub->os_file;
2898 down_read(&scrub->os_rwsem);
2899 rc = seq_printf(m, "name: OI_scrub\n"
2903 sf->sf_magic, (int)sf->sf_oi_count,
2904 scrub_status_names[sf->sf_status]);
2908 rc = scrub_bits_dump(m, sf->sf_flags, scrub_flags_names,
2913 rc = scrub_bits_dump(m, sf->sf_param, scrub_param_names,
2918 rc = scrub_time_dump(m, sf->sf_time_last_complete,
2919 "time_since_last_completed");
2923 rc = scrub_time_dump(m, sf->sf_time_latest_start,
2924 "time_since_latest_start");
2928 rc = scrub_time_dump(m, sf->sf_time_last_checkpoint,
2929 "time_since_last_checkpoint");
2933 rc = scrub_pos_dump(m, sf->sf_pos_latest_start,
2934 "latest_start_position");
2938 rc = scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
2939 "last_checkpoint_position");
2943 rc = scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
2944 "first_failure_position");
2948 checked = sf->sf_items_checked + scrub->os_new_checked;
2949 rc = seq_printf(m, "checked: "LPU64"\n"
2950 "updated: "LPU64"\n"
2952 "prior_updated: "LPU64"\n"
2953 "noscrub: "LPU64"\n"
2955 "success_count: %u\n",
2956 checked, sf->sf_items_updated, sf->sf_items_failed,
2957 sf->sf_items_updated_prior, sf->sf_items_noscrub,
2958 sf->sf_items_igif, sf->sf_success_count);
2963 if (thread_is_running(&scrub->os_thread)) {
2964 cfs_duration_t duration = cfs_time_current() -
2965 scrub->os_time_last_checkpoint;
2966 __u64 new_checked = msecs_to_jiffies(scrub->os_new_checked *
2968 __u32 rtime = sf->sf_run_time +
2969 cfs_duration_sec(duration + HALF_SEC);
2972 do_div(new_checked, duration);
2974 do_div(speed, rtime);
2975 rc = seq_printf(m, "run_time: %u seconds\n"
2976 "average_speed: "LPU64" objects/sec\n"
2977 "real-time_speed: "LPU64" objects/sec\n"
2978 "current_position: %u\n"
2979 "lf_scanned: "LPU64"\n"
2980 "lf_reparied: "LPU64"\n"
2981 "lf_failed: "LPU64"\n",
2982 rtime, speed, new_checked, scrub->os_pos_current,
2983 scrub->os_lf_scanned, scrub->os_lf_repaired,
2984 scrub->os_lf_failed);
2986 if (sf->sf_run_time != 0)
2987 do_div(speed, sf->sf_run_time);
2988 rc = seq_printf(m, "run_time: %u seconds\n"
2989 "average_speed: "LPU64" objects/sec\n"
2990 "real-time_speed: N/A\n"
2991 "current_position: N/A\n"
2992 "lf_scanned: "LPU64"\n"
2993 "lf_reparied: "LPU64"\n"
2994 "lf_failed: "LPU64"\n",
2995 sf->sf_run_time, speed, scrub->os_lf_scanned,
2996 scrub->os_lf_repaired, scrub->os_lf_failed);
3000 up_read(&scrub->os_rwsem);
3001 return (rc < 0 ? -ENOSPC : 0);