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, 2015, Intel Corporation.
26 * lustre/osd-ldiskfs/osd_scrub.c
28 * Top-level entry points into osd module
30 * The OI scrub is used for rebuilding Object Index files when restores MDT from
33 * The otable based iterator scans ldiskfs inode table to feed up layer LFSCK.
35 * Author: Fan Yong <yong.fan@whamcloud.com>
38 #define DEBUG_SUBSYSTEM S_LFSCK
40 #include <linux/kthread.h>
41 #include <lustre/lustre_idl.h>
42 #include <lustre_disk.h>
43 #include <dt_object.h>
44 #include <linux/xattr.h>
46 #include "osd_internal.h"
48 #include "osd_scrub.h"
50 #define HALF_SEC msecs_to_jiffies(MSEC_PER_SEC >> 1)
52 #define OSD_OTABLE_MAX_HASH 0x00000000ffffffffULL
54 #define SCRUB_NEXT_BREAK 1 /* exit current loop and process next group */
55 #define SCRUB_NEXT_CONTINUE 2 /* skip current object and process next bit */
56 #define SCRUB_NEXT_EXIT 3 /* exit all the loops */
57 #define SCRUB_NEXT_WAIT 4 /* wait for free cache slot */
58 #define SCRUB_NEXT_CRASH 5 /* simulate system crash during OI scrub */
59 #define SCRUB_NEXT_FATAL 6 /* simulate failure during OI scrub */
60 #define SCRUB_NEXT_NOSCRUB 7 /* new created object, no scrub on it */
61 #define SCRUB_NEXT_NOLMA 8 /* the inode has no FID-in-LMA */
62 #define SCRUB_NEXT_OSTOBJ 9 /* for OST-object */
63 #define SCRUB_NEXT_OSTOBJ_OLD 10 /* old OST-object, no LMA or no FID-on-OST
68 static inline struct osd_device *osd_scrub2dev(struct osd_scrub *scrub)
70 return container_of0(scrub, struct osd_device, od_scrub);
73 static inline struct super_block *osd_scrub2sb(struct osd_scrub *scrub)
75 return osd_sb(osd_scrub2dev(scrub));
78 static inline int osd_scrub_has_window(struct osd_scrub *scrub,
79 struct osd_otable_cache *ooc)
81 return scrub->os_pos_current < ooc->ooc_pos_preload + SCRUB_WINDOW_SIZE;
84 static inline const char *osd_scrub2name(struct osd_scrub *scrub)
86 return LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name;
90 * update/insert/delete the specified OI mapping (@fid @id) according to the ops
92 * \retval 1, changed nothing
93 * \retval 0, changed successfully
94 * \retval -ve, on error
96 static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
97 struct osd_device *dev,
98 const struct lu_fid *fid,
99 const struct osd_inode_id *id,
101 enum oi_check_flags flags)
107 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN && !force)
110 /* DTO_INDEX_INSERT is enough for other two ops:
111 * delete/update, but save stack. */
112 th = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
113 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
116 CDEBUG(D_LFSCK, "%s: fail to start trans for scrub op %d "
117 DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
118 PFID(fid), id->oii_ino, id->oii_gen, rc);
123 case DTO_INDEX_UPDATE:
124 rc = osd_oi_update(info, dev, fid, id, th, flags);
125 if (unlikely(rc == -ENOENT)) {
126 /* Some unlink thread may removed the OI mapping. */
130 case DTO_INDEX_INSERT:
131 rc = osd_oi_insert(info, dev, fid, id, th, flags);
132 if (unlikely(rc == -EEXIST)) {
134 /* XXX: There are trouble things when adding OI
135 * mapping for IGIF object, which may cause
136 * multiple objects to be mapped to the same
137 * IGIF formatted FID. Consider the following
140 * 1) The MDT is upgrading from 1.8 device.
141 * The OI scrub generates IGIF FID1 for the
142 * OBJ1 and adds the OI mapping.
144 * 2) For some reason, the OI scrub does not
145 * process all the IGIF objects completely.
147 * 3) The MDT is backuped and restored against
150 * 4) When the MDT mounts up, the OI scrub will
151 * try to rebuild the OI files. For some IGIF
152 * object, OBJ2, which was not processed by the
153 * OI scrub before the backup/restore, and the
154 * new generated IGIF formatted FID may be just
155 * the FID1, the same as OBJ1.
157 * Under such case, the OI scrub cannot know how
158 * to generate new FID for the OBJ2.
160 * Currently, we do nothing for that. One possible
161 * solution is to generate new normal FID for the
164 * Anyway, it is rare, only exists in theory. */
167 case DTO_INDEX_DELETE:
168 rc = osd_oi_delete(info, dev, fid, th, flags);
170 /* It is normal that the unlink thread has removed the
171 * OI mapping already. */
176 LASSERTF(0, "Unexpected ops %d\n", ops);
180 ldiskfs_journal_stop(th);
182 CDEBUG(D_LFSCK, "%s: fail to refresh OI map for scrub op %d "
183 DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
184 PFID(fid), id ? id->oii_ino : -1, id ? id->oii_gen : -1,
190 /* OI_scrub file ops */
192 static void osd_scrub_file_to_cpu(struct scrub_file *des,
193 struct scrub_file *src)
195 memcpy(des->sf_uuid, src->sf_uuid, 16);
196 des->sf_flags = le64_to_cpu(src->sf_flags);
197 des->sf_magic = le32_to_cpu(src->sf_magic);
198 des->sf_status = le16_to_cpu(src->sf_status);
199 des->sf_param = le16_to_cpu(src->sf_param);
200 des->sf_time_last_complete =
201 le64_to_cpu(src->sf_time_last_complete);
202 des->sf_time_latest_start =
203 le64_to_cpu(src->sf_time_latest_start);
204 des->sf_time_last_checkpoint =
205 le64_to_cpu(src->sf_time_last_checkpoint);
206 des->sf_pos_latest_start =
207 le64_to_cpu(src->sf_pos_latest_start);
208 des->sf_pos_last_checkpoint =
209 le64_to_cpu(src->sf_pos_last_checkpoint);
210 des->sf_pos_first_inconsistent =
211 le64_to_cpu(src->sf_pos_first_inconsistent);
212 des->sf_items_checked =
213 le64_to_cpu(src->sf_items_checked);
214 des->sf_items_updated =
215 le64_to_cpu(src->sf_items_updated);
216 des->sf_items_failed =
217 le64_to_cpu(src->sf_items_failed);
218 des->sf_items_updated_prior =
219 le64_to_cpu(src->sf_items_updated_prior);
220 des->sf_run_time = le32_to_cpu(src->sf_run_time);
221 des->sf_success_count = le32_to_cpu(src->sf_success_count);
222 des->sf_oi_count = le16_to_cpu(src->sf_oi_count);
223 des->sf_internal_flags = le16_to_cpu(src->sf_internal_flags);
224 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
227 static void osd_scrub_file_to_le(struct scrub_file *des,
228 struct scrub_file *src)
230 memcpy(des->sf_uuid, src->sf_uuid, 16);
231 des->sf_flags = cpu_to_le64(src->sf_flags);
232 des->sf_magic = cpu_to_le32(src->sf_magic);
233 des->sf_status = cpu_to_le16(src->sf_status);
234 des->sf_param = cpu_to_le16(src->sf_param);
235 des->sf_time_last_complete =
236 cpu_to_le64(src->sf_time_last_complete);
237 des->sf_time_latest_start =
238 cpu_to_le64(src->sf_time_latest_start);
239 des->sf_time_last_checkpoint =
240 cpu_to_le64(src->sf_time_last_checkpoint);
241 des->sf_pos_latest_start =
242 cpu_to_le64(src->sf_pos_latest_start);
243 des->sf_pos_last_checkpoint =
244 cpu_to_le64(src->sf_pos_last_checkpoint);
245 des->sf_pos_first_inconsistent =
246 cpu_to_le64(src->sf_pos_first_inconsistent);
247 des->sf_items_checked =
248 cpu_to_le64(src->sf_items_checked);
249 des->sf_items_updated =
250 cpu_to_le64(src->sf_items_updated);
251 des->sf_items_failed =
252 cpu_to_le64(src->sf_items_failed);
253 des->sf_items_updated_prior =
254 cpu_to_le64(src->sf_items_updated_prior);
255 des->sf_run_time = cpu_to_le32(src->sf_run_time);
256 des->sf_success_count = cpu_to_le32(src->sf_success_count);
257 des->sf_oi_count = cpu_to_le16(src->sf_oi_count);
258 des->sf_internal_flags = cpu_to_le16(src->sf_internal_flags);
259 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
262 static void osd_scrub_file_init(struct osd_scrub *scrub, __u8 *uuid)
264 struct scrub_file *sf = &scrub->os_file;
266 memset(sf, 0, sizeof(*sf));
267 memcpy(sf->sf_uuid, uuid, 16);
268 sf->sf_magic = SCRUB_MAGIC_V1;
269 sf->sf_status = SS_INIT;
272 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags)
274 struct scrub_file *sf = &scrub->os_file;
276 CDEBUG(D_LFSCK, "%.16s: reset OI scrub file, old flags = "
277 LPX64", add flags = "LPX64"\n",
278 osd_scrub2name(scrub), sf->sf_flags, flags);
280 memcpy(sf->sf_uuid, uuid, 16);
281 sf->sf_status = SS_INIT;
282 sf->sf_flags |= flags;
283 sf->sf_flags &= ~SF_AUTO;
285 sf->sf_time_latest_start = 0;
286 sf->sf_time_last_checkpoint = 0;
287 sf->sf_pos_latest_start = 0;
288 sf->sf_pos_last_checkpoint = 0;
289 sf->sf_pos_first_inconsistent = 0;
290 sf->sf_items_checked = 0;
291 sf->sf_items_updated = 0;
292 sf->sf_items_failed = 0;
293 if (!scrub->os_in_join)
294 sf->sf_items_updated_prior = 0;
296 sf->sf_items_noscrub = 0;
297 sf->sf_items_igif = 0;
300 static int osd_scrub_file_load(struct osd_scrub *scrub)
303 int len = sizeof(scrub->os_file_disk);
306 rc = osd_ldiskfs_read(scrub->os_inode, &scrub->os_file_disk, len, &pos);
308 struct scrub_file *sf = &scrub->os_file;
310 osd_scrub_file_to_cpu(sf, &scrub->os_file_disk);
311 if (sf->sf_magic != SCRUB_MAGIC_V1) {
312 CDEBUG(D_LFSCK, "%.16s: invalid scrub magic "
313 "0x%x != 0x%x\n", osd_scrub2name(scrub),
314 sf->sf_magic, SCRUB_MAGIC_V1);
315 /* Process it as new scrub file. */
320 } else if (rc != 0) {
321 CDEBUG(D_LFSCK, "%.16s: fail to load scrub file, "
322 "expected = %d: rc = %d\n",
323 osd_scrub2name(scrub), len, rc);
327 /* return -ENOENT for empty scrub file case. */
334 int osd_scrub_file_store(struct osd_scrub *scrub)
336 struct osd_device *dev;
339 int len = sizeof(scrub->os_file_disk);
343 dev = container_of0(scrub, struct osd_device, od_scrub);
344 credits = osd_dto_credits_noquota[DTO_WRITE_BASE] +
345 osd_dto_credits_noquota[DTO_WRITE_BLOCK];
346 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, credits);
349 CDEBUG(D_LFSCK, "%.16s: fail to start trans for scrub store: "
350 "rc = %d\n", osd_scrub2name(scrub), rc);
354 osd_scrub_file_to_le(&scrub->os_file_disk, &scrub->os_file);
355 rc = osd_ldiskfs_write_record(scrub->os_inode, &scrub->os_file_disk,
357 ldiskfs_journal_stop(jh);
359 CDEBUG(D_LFSCK, "%.16s: fail to store scrub file, "
360 "expected = %d: rc = %d\n",
361 osd_scrub2name(scrub), len, rc);
363 scrub->os_time_last_checkpoint = cfs_time_current();
364 scrub->os_time_next_checkpoint = scrub->os_time_last_checkpoint +
365 cfs_time_seconds(SCRUB_CHECKPOINT_INTERVAL);
370 osd_scrub_convert_ff(struct osd_thread_info *info, struct osd_device *dev,
371 struct inode *inode, const struct lu_fid *fid)
373 struct filter_fid_old *ff = &info->oti_ff;
374 struct dentry *dentry = &info->oti_obj_dentry;
375 struct lu_fid *tfid = &info->oti_fid;
379 bool removed = false;
383 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN)
386 if (fid_is_idif(fid) && dev->od_index_in_idif == 0) {
387 struct ost_id *oi = &info->oti_ostid;
389 fid_to_ostid(fid, oi);
390 ostid_to_fid(tfid, oi, 0);
395 /* We want the LMA to fit into the 256-byte OST inode, so operate
397 * 1) read old XATTR_NAME_FID and save the parent FID;
398 * 2) delete the old XATTR_NAME_FID;
399 * 3) make new LMA and add it;
400 * 4) generate new XATTR_NAME_FID with the saved parent FID and add it.
402 * Making the LMA to fit into the 256-byte OST inode can save time for
403 * normal osd_check_lma() and for other OI scrub scanning in future.
404 * So it is worth to make some slow conversion here. */
405 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
406 osd_dto_credits_noquota[DTO_XATTR_SET] * 3);
409 CDEBUG(D_LFSCK, "%s: fail to start trans for convert ff "
410 DFID": rc = %d\n", osd_name(dev), PFID(tfid), rc);
414 /* 1) read old XATTR_NAME_FID and save the parent FID */
415 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
416 if (rc == sizeof(*ff)) {
417 /* 2) delete the old XATTR_NAME_FID */
418 ll_vfs_dq_init(inode);
419 rc = inode->i_op->removexattr(dentry, XATTR_NAME_FID);
424 } else if (unlikely(rc == -ENODATA)) {
426 } else if (rc != sizeof(struct filter_fid)) {
427 GOTO(stop, rc = -EINVAL);
430 /* 3) make new LMA and add it */
431 rc = osd_ea_fid_set(info, inode, tfid, LMAC_FID_ON_OST, 0);
432 if (rc == 0 && reset)
433 size = sizeof(struct filter_fid);
434 else if (rc != 0 && removed)
435 /* If failed, we should try to add the old back. */
436 size = sizeof(struct filter_fid_old);
438 /* 4) generate new XATTR_NAME_FID with the saved parent FID and add it*/
442 rc1 = __osd_xattr_set(info, inode, XATTR_NAME_FID, ff, size,
444 if (rc1 != 0 && rc == 0)
451 ldiskfs_journal_stop(jh);
453 CDEBUG(D_LFSCK, "%s: fail to convert ff "DFID": rc = %d\n",
454 osd_name(dev), PFID(tfid), rc);
459 osd_scrub_check_update(struct osd_thread_info *info, struct osd_device *dev,
460 struct osd_idmap_cache *oic, int val)
462 struct osd_scrub *scrub = &dev->od_scrub;
463 struct scrub_file *sf = &scrub->os_file;
464 struct lu_fid *fid = &oic->oic_fid;
465 struct osd_inode_id *lid = &oic->oic_lid;
466 struct osd_inode_id *lid2 = &info->oti_id;
467 struct osd_inconsistent_item *oii = NULL;
468 struct inode *inode = NULL;
469 int ops = DTO_INDEX_UPDATE;
472 bool converted = false;
475 down_write(&scrub->os_rwsem);
476 scrub->os_new_checked++;
480 if (scrub->os_in_prior)
481 oii = list_entry(oic, struct osd_inconsistent_item,
484 if (lid->oii_ino < sf->sf_pos_latest_start && oii == NULL)
487 if (fid_is_igif(fid))
490 if (val == SCRUB_NEXT_OSTOBJ_OLD) {
491 inode = osd_iget(info, dev, lid);
494 /* Someone removed the inode. */
495 if (rc == -ENOENT || rc == -ESTALE)
500 sf->sf_flags |= SF_UPGRADE;
501 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
502 dev->od_check_ff = 1;
503 rc = osd_scrub_convert_ff(info, dev, inode, fid);
510 if ((val == SCRUB_NEXT_NOLMA) &&
511 (!scrub->os_convert_igif || OBD_FAIL_CHECK(OBD_FAIL_FID_NOLMA)))
514 if ((oii != NULL && oii->oii_insert) || (val == SCRUB_NEXT_NOLMA)) {
515 ops = DTO_INDEX_INSERT;
520 rc = osd_oi_lookup(info, dev, fid, lid2,
521 (val == SCRUB_NEXT_OSTOBJ ||
522 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
525 ops = DTO_INDEX_INSERT;
526 else if (rc != -ESTALE)
531 inode = osd_iget(info, dev, lid);
534 /* Someone removed the inode. */
535 if (rc == -ENOENT || rc == -ESTALE)
541 if (!scrub->os_partial_scan)
542 scrub->os_full_speed = 1;
544 idx = osd_oi_fid2idx(dev, fid);
546 case SCRUB_NEXT_NOLMA:
547 sf->sf_flags |= SF_UPGRADE;
548 if (!(sf->sf_param & SP_DRYRUN)) {
549 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
554 if (!(sf->sf_flags & SF_INCONSISTENT))
555 dev->od_igif_inoi = 0;
557 case SCRUB_NEXT_OSTOBJ:
558 sf->sf_flags |= SF_INCONSISTENT;
559 case SCRUB_NEXT_OSTOBJ_OLD:
562 sf->sf_flags |= SF_RECREATED;
563 if (unlikely(!ldiskfs_test_bit(idx, sf->sf_oi_bitmap)))
564 ldiskfs_set_bit(idx, sf->sf_oi_bitmap);
567 } else if (osd_id_eq(lid, lid2)) {
569 sf->sf_items_updated++;
573 if (!scrub->os_partial_scan)
574 scrub->os_full_speed = 1;
576 sf->sf_flags |= SF_INCONSISTENT;
578 /* XXX: If the device is restored from file-level backup, then
579 * some IGIFs may have been already in OI files, and some
580 * may be not yet. Means upgrading from 1.8 may be partly
581 * processed, but some clients may hold some immobilized
582 * IGIFs, and use them to access related objects. Under
583 * such case, OSD does not know whether an given IGIF has
584 * been processed or to be processed, and it also cannot
585 * generate local ino#/gen# directly from the immobilized
586 * IGIF because of the backup/restore. Then force OSD to
587 * lookup the given IGIF in OI files, and if no entry,
588 * then ask the client to retry after upgrading completed.
589 * No better choice. */
590 dev->od_igif_inoi = 1;
593 rc = osd_scrub_refresh_mapping(info, dev, fid, lid, ops, false,
594 (val == SCRUB_NEXT_OSTOBJ ||
595 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
597 if (scrub->os_in_prior)
598 sf->sf_items_updated_prior++;
600 sf->sf_items_updated++;
607 sf->sf_items_failed++;
608 if (sf->sf_pos_first_inconsistent == 0 ||
609 sf->sf_pos_first_inconsistent > lid->oii_ino)
610 sf->sf_pos_first_inconsistent = lid->oii_ino;
615 /* There may be conflict unlink during the OI scrub,
616 * if happend, then remove the new added OI mapping. */
617 if (ops == DTO_INDEX_INSERT && inode != NULL && !IS_ERR(inode) &&
618 unlikely(ldiskfs_test_inode_state(inode,
619 LDISKFS_STATE_LUSTRE_DESTROY)))
620 osd_scrub_refresh_mapping(info, dev, fid, lid,
621 DTO_INDEX_DELETE, false,
622 (val == SCRUB_NEXT_OSTOBJ ||
623 val == SCRUB_NEXT_OSTOBJ_OLD) ?
624 OI_KNOWN_ON_OST : 0);
625 up_write(&scrub->os_rwsem);
627 if (inode != NULL && !IS_ERR(inode))
631 LASSERT(list_empty(&oii->oii_list));
636 RETURN(sf->sf_param & SP_FAILOUT ? rc : 0);
641 static int osd_scrub_prep(struct osd_device *dev)
643 struct osd_scrub *scrub = &dev->od_scrub;
644 struct ptlrpc_thread *thread = &scrub->os_thread;
645 struct scrub_file *sf = &scrub->os_file;
646 __u32 flags = scrub->os_start_flags;
648 bool drop_dryrun = false;
651 CDEBUG(D_LFSCK, "%.16s: OI scrub prep, flags = 0x%x\n",
652 osd_scrub2name(scrub), flags);
654 down_write(&scrub->os_rwsem);
655 if (flags & SS_SET_FAILOUT)
656 sf->sf_param |= SP_FAILOUT;
657 else if (flags & SS_CLEAR_FAILOUT)
658 sf->sf_param &= ~SP_FAILOUT;
660 if (flags & SS_SET_DRYRUN) {
661 sf->sf_param |= SP_DRYRUN;
662 } else if (flags & SS_CLEAR_DRYRUN && sf->sf_param & SP_DRYRUN) {
663 sf->sf_param &= ~SP_DRYRUN;
667 if (flags & SS_RESET)
668 osd_scrub_file_reset(scrub,
669 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, 0);
671 if (flags & SS_AUTO_FULL) {
672 scrub->os_full_speed = 1;
673 scrub->os_partial_scan = 0;
674 sf->sf_flags |= SF_AUTO;
675 } else if (flags & SS_AUTO_PARTIAL) {
676 scrub->os_full_speed = 0;
677 scrub->os_partial_scan = 1;
678 sf->sf_flags |= SF_AUTO;
679 } else if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
681 scrub->os_full_speed = 1;
682 scrub->os_partial_scan = 0;
684 scrub->os_full_speed = 0;
685 scrub->os_partial_scan = 0;
688 spin_lock(&scrub->os_lock);
689 scrub->os_in_prior = 0;
690 scrub->os_waiting = 0;
691 scrub->os_paused = 0;
692 scrub->os_in_join = 0;
693 scrub->os_full_scrub = 0;
694 spin_unlock(&scrub->os_lock);
695 scrub->os_new_checked = 0;
696 if (drop_dryrun && sf->sf_pos_first_inconsistent != 0)
697 sf->sf_pos_latest_start = sf->sf_pos_first_inconsistent;
698 else if (sf->sf_pos_last_checkpoint != 0)
699 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
701 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
703 scrub->os_pos_current = sf->sf_pos_latest_start;
704 sf->sf_status = SS_SCANNING;
705 sf->sf_time_latest_start = cfs_time_current_sec();
706 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
707 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
708 rc = osd_scrub_file_store(scrub);
710 spin_lock(&scrub->os_lock);
711 thread_set_flags(thread, SVC_RUNNING);
712 spin_unlock(&scrub->os_lock);
713 wake_up_all(&thread->t_ctl_waitq);
715 up_write(&scrub->os_rwsem);
720 static int osd_scrub_checkpoint(struct osd_scrub *scrub)
722 struct scrub_file *sf = &scrub->os_file;
725 if (likely(cfs_time_before(cfs_time_current(),
726 scrub->os_time_next_checkpoint) ||
727 scrub->os_new_checked == 0))
730 down_write(&scrub->os_rwsem);
731 sf->sf_items_checked += scrub->os_new_checked;
732 scrub->os_new_checked = 0;
733 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
734 sf->sf_time_last_checkpoint = cfs_time_current_sec();
735 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
736 scrub->os_time_last_checkpoint);
737 rc = osd_scrub_file_store(scrub);
738 up_write(&scrub->os_rwsem);
743 static void osd_scrub_post(struct osd_scrub *scrub, int result)
745 struct scrub_file *sf = &scrub->os_file;
748 CDEBUG(D_LFSCK, "%.16s: OI scrub post, result = %d\n",
749 osd_scrub2name(scrub), result);
751 down_write(&scrub->os_rwsem);
752 spin_lock(&scrub->os_lock);
753 thread_set_flags(&scrub->os_thread, SVC_STOPPING);
754 spin_unlock(&scrub->os_lock);
755 if (scrub->os_new_checked > 0) {
756 sf->sf_items_checked += scrub->os_new_checked;
757 scrub->os_new_checked = 0;
758 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
760 sf->sf_time_last_checkpoint = cfs_time_current_sec();
762 struct osd_device *dev =
763 container_of0(scrub, struct osd_device, od_scrub);
765 dev->od_igif_inoi = 1;
766 dev->od_check_ff = 0;
767 sf->sf_status = SS_COMPLETED;
768 if (!(sf->sf_param & SP_DRYRUN)) {
769 memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
770 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
771 SF_UPGRADE | SF_AUTO);
773 sf->sf_time_last_complete = sf->sf_time_last_checkpoint;
774 sf->sf_success_count++;
775 } else if (result == 0) {
776 if (scrub->os_paused)
777 sf->sf_status = SS_PAUSED;
779 sf->sf_status = SS_STOPPED;
781 sf->sf_status = SS_FAILED;
783 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
784 scrub->os_time_last_checkpoint);
785 result = osd_scrub_file_store(scrub);
786 up_write(&scrub->os_rwsem);
791 /* iteration engine */
793 struct osd_iit_param {
794 struct super_block *sb;
795 struct buffer_head *bitmap;
801 typedef int (*osd_iit_next_policy)(struct osd_thread_info *info,
802 struct osd_device *dev,
803 struct osd_iit_param *param,
804 struct osd_idmap_cache **oic,
807 typedef int (*osd_iit_exec_policy)(struct osd_thread_info *info,
808 struct osd_device *dev,
809 struct osd_iit_param *param,
810 struct osd_idmap_cache *oic,
811 bool *noslot, int rc);
813 static int osd_iit_next(struct osd_iit_param *param, __u32 *pos)
815 param->offset = ldiskfs_find_next_bit(param->bitmap->b_data,
816 LDISKFS_INODES_PER_GROUP(param->sb), param->offset);
817 if (param->offset >= LDISKFS_INODES_PER_GROUP(param->sb)) {
818 *pos = 1 + (param->bg+1) * LDISKFS_INODES_PER_GROUP(param->sb);
819 return SCRUB_NEXT_BREAK;
821 *pos = param->gbase + param->offset;
827 * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST
828 * \retval 0: FID-on-MDT
830 static int osd_scrub_check_local_fldb(struct osd_thread_info *info,
831 struct osd_device *dev,
834 /* XXX: The initial OI scrub will scan the top level /O to generate
835 * a small local FLDB according to the <seq>. If the given FID
836 * is in the local FLDB, then it is FID-on-OST; otherwise it's
837 * quite possible for FID-on-MDT. */
839 return SCRUB_NEXT_OSTOBJ_OLD;
844 static int osd_scrub_get_fid(struct osd_thread_info *info,
845 struct osd_device *dev, struct inode *inode,
846 struct lu_fid *fid, bool scrub)
848 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
850 bool has_lma = false;
852 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
855 if (lma->lma_compat & LMAC_NOT_IN_OI ||
856 lma->lma_incompat & LMAI_AGENT)
857 return SCRUB_NEXT_CONTINUE;
859 *fid = lma->lma_self_fid;
863 if (lma->lma_compat & LMAC_FID_ON_OST)
864 return SCRUB_NEXT_OSTOBJ;
866 if (fid_is_idif(fid))
867 return SCRUB_NEXT_OSTOBJ_OLD;
869 /* For local object. */
870 if (fid_is_internal(fid))
873 /* For external visible MDT-object with non-normal FID. */
874 if (fid_is_namespace_visible(fid) && !fid_is_norm(fid))
877 /* For the object with normal FID, it may be MDT-object,
878 * or may be 2.4 OST-object, need further distinguish.
879 * Fall through to next section. */
882 if (rc == -ENODATA || rc == 0) {
883 rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid);
886 /* It is old 2.x (x <= 3) or 1.8 OST-object. */
887 rc = SCRUB_NEXT_OSTOBJ_OLD;
893 /* It is FID-on-OST, but we do not know how
894 * to generate its FID, ignore it directly. */
895 rc = SCRUB_NEXT_CONTINUE;
897 /* It is 2.4 OST-object. */
898 rc = SCRUB_NEXT_OSTOBJ_OLD;
906 if (dev->od_scrub.os_convert_igif) {
907 lu_igif_build(fid, inode->i_ino,
908 inode->i_generation);
910 rc = SCRUB_NEXT_NOLMA;
914 /* It may be FID-on-OST, or may be FID for
915 * non-MDT0, anyway, we do not know how to
916 * generate its FID, ignore it directly. */
917 rc = SCRUB_NEXT_CONTINUE;
922 /* For OI scrub case only: the object has LMA but has no ff
923 * (or ff crashed). It may be MDT-object, may be OST-object
924 * with crashed ff. The last check is local FLDB. */
925 rc = osd_scrub_check_local_fldb(info, dev, fid);
931 static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
932 struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
933 struct super_block *sb, bool scrub)
939 /* Not handle the backend root object and agent parent object.
940 * They are neither visible to namespace nor have OI mappings. */
941 if (unlikely(pos == osd_sb(dev)->s_root->d_inode->i_ino ||
942 pos == osd_remote_parent_ino(dev)))
943 RETURN(SCRUB_NEXT_CONTINUE);
945 osd_id_gen(lid, pos, OSD_OII_NOGEN);
946 inode = osd_iget(info, dev, lid);
949 /* The inode may be removed after bitmap searching, or the
950 * file is new created without inode initialized yet. */
951 if (rc == -ENOENT || rc == -ESTALE)
952 RETURN(SCRUB_NEXT_CONTINUE);
954 CDEBUG(D_LFSCK, "%.16s: fail to read inode, ino# = %u: "
955 "rc = %d\n", LDISKFS_SB(sb)->s_es->s_volume_name,
961 ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
962 /* Only skip it for the first OI scrub accessing. */
963 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
964 GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
967 rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
976 static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
977 struct osd_iit_param *param,
978 struct osd_idmap_cache **oic, const bool noslot)
980 struct osd_scrub *scrub = &dev->od_scrub;
981 struct ptlrpc_thread *thread = &scrub->os_thread;
983 struct osd_inode_id *lid;
986 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
987 struct l_wait_info lwi;
989 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
990 if (likely(lwi.lwi_timeout > 0))
991 l_wait_event(thread->t_ctl_waitq,
992 !list_empty(&scrub->os_inconsistent_items) ||
993 !thread_is_running(thread),
997 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
998 spin_lock(&scrub->os_lock);
999 thread_set_flags(thread, SVC_STOPPING);
1000 spin_unlock(&scrub->os_lock);
1001 return SCRUB_NEXT_CRASH;
1004 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
1005 return SCRUB_NEXT_FATAL;
1007 if (unlikely(!thread_is_running(thread)))
1008 return SCRUB_NEXT_EXIT;
1010 if (!list_empty(&scrub->os_inconsistent_items)) {
1011 spin_lock(&scrub->os_lock);
1012 if (likely(!list_empty(&scrub->os_inconsistent_items))) {
1013 struct osd_inconsistent_item *oii;
1015 oii = list_entry(scrub->os_inconsistent_items.next,
1016 struct osd_inconsistent_item, oii_list);
1017 list_del_init(&oii->oii_list);
1018 spin_unlock(&scrub->os_lock);
1020 *oic = &oii->oii_cache;
1021 scrub->os_in_prior = 1;
1025 spin_unlock(&scrub->os_lock);
1029 return SCRUB_NEXT_WAIT;
1031 rc = osd_iit_next(param, &scrub->os_pos_current);
1035 *oic = &scrub->os_oic;
1036 fid = &(*oic)->oic_fid;
1037 lid = &(*oic)->oic_lid;
1038 rc = osd_iit_iget(info, dev, fid, lid,
1039 scrub->os_pos_current, param->sb, true);
1043 static int osd_preload_next(struct osd_thread_info *info,
1044 struct osd_device *dev, struct osd_iit_param *param,
1045 struct osd_idmap_cache **oic, const bool noslot)
1047 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1048 struct osd_scrub *scrub;
1049 struct ptlrpc_thread *thread;
1052 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1056 scrub = &dev->od_scrub;
1057 thread = &scrub->os_thread;
1058 if (thread_is_running(thread) &&
1059 ooc->ooc_pos_preload >= scrub->os_pos_current)
1060 return SCRUB_NEXT_EXIT;
1062 rc = osd_iit_iget(info, dev,
1063 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1064 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1065 ooc->ooc_pos_preload, param->sb, false);
1066 /* If succeed, it needs to move forward; otherwise up layer LFSCK may
1067 * ignore the failure, so it still need to skip the inode next time. */
1068 ooc->ooc_pos_preload = param->gbase + ++(param->offset);
1073 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1075 spin_lock(&scrub->os_lock);
1076 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1077 !list_empty(&scrub->os_inconsistent_items) ||
1078 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1079 scrub->os_waiting = 0;
1081 scrub->os_waiting = 1;
1082 spin_unlock(&scrub->os_lock);
1084 return !scrub->os_waiting;
1087 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1088 struct osd_iit_param *param,
1089 struct osd_idmap_cache *oic, bool *noslot, int rc)
1091 struct l_wait_info lwi = { 0 };
1092 struct osd_scrub *scrub = &dev->od_scrub;
1093 struct scrub_file *sf = &scrub->os_file;
1094 struct ptlrpc_thread *thread = &scrub->os_thread;
1095 struct osd_otable_it *it = dev->od_otable_it;
1096 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1099 case SCRUB_NEXT_CONTINUE:
1101 case SCRUB_NEXT_WAIT:
1103 case SCRUB_NEXT_NOSCRUB:
1104 down_write(&scrub->os_rwsem);
1105 scrub->os_new_checked++;
1106 sf->sf_items_noscrub++;
1107 up_write(&scrub->os_rwsem);
1111 rc = osd_scrub_check_update(info, dev, oic, rc);
1113 scrub->os_in_prior = 0;
1117 rc = osd_scrub_checkpoint(scrub);
1119 CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: "
1120 "rc = %d\n", osd_scrub2name(scrub),
1121 scrub->os_pos_current, rc);
1122 /* Continue, as long as the scrub itself can go ahead. */
1125 if (scrub->os_in_prior) {
1126 scrub->os_in_prior = 0;
1131 scrub->os_pos_current = param->gbase + ++(param->offset);
1134 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1135 ooc->ooc_pos_preload < scrub->os_pos_current) {
1136 spin_lock(&scrub->os_lock);
1137 it->ooi_waiting = 0;
1138 wake_up_all(&thread->t_ctl_waitq);
1139 spin_unlock(&scrub->os_lock);
1142 if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
1145 if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) {
1151 l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
1154 if (ooc != NULL && osd_scrub_has_window(scrub, ooc))
1161 static int osd_preload_exec(struct osd_thread_info *info,
1162 struct osd_device *dev, struct osd_iit_param *param,
1163 struct osd_idmap_cache *oic, bool *noslot, int rc)
1165 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1168 ooc->ooc_cached_items++;
1169 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1170 ~OSD_OTABLE_IT_CACHE_MASK;
1172 return rc > 0 ? 0 : rc;
1175 #define SCRUB_IT_ALL 1
1176 #define SCRUB_IT_CRASH 2
1178 static void osd_scrub_join(struct osd_device *dev, __u32 flags,
1181 struct osd_scrub *scrub = &dev->od_scrub;
1182 struct ptlrpc_thread *thread = &scrub->os_thread;
1183 struct scrub_file *sf = &scrub->os_file;
1187 LASSERT(!(flags & SS_AUTO_PARTIAL));
1189 down_write(&scrub->os_rwsem);
1190 scrub->os_in_join = 1;
1191 if (flags & SS_SET_FAILOUT)
1192 sf->sf_param |= SP_FAILOUT;
1193 else if (flags & SS_CLEAR_FAILOUT)
1194 sf->sf_param &= ~SP_FAILOUT;
1196 if (flags & SS_SET_DRYRUN)
1197 sf->sf_param |= SP_DRYRUN;
1198 else if (flags & SS_CLEAR_DRYRUN)
1199 sf->sf_param &= ~SP_DRYRUN;
1201 if (flags & SS_RESET) {
1202 osd_scrub_file_reset(scrub,
1203 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1204 inconsistent ? SF_INCONSISTENT : 0);
1205 sf->sf_status = SS_SCANNING;
1208 if (flags & SS_AUTO_FULL) {
1209 sf->sf_flags |= SF_AUTO;
1210 scrub->os_full_speed = 1;
1213 if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
1214 scrub->os_full_speed = 1;
1216 scrub->os_full_speed = 0;
1218 scrub->os_new_checked = 0;
1219 if (sf->sf_pos_last_checkpoint != 0)
1220 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
1222 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
1224 scrub->os_pos_current = sf->sf_pos_latest_start;
1225 sf->sf_time_latest_start = cfs_time_current_sec();
1226 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
1227 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
1228 rc = osd_scrub_file_store(scrub);
1230 CDEBUG(D_LFSCK, "%.16s: fail to store scrub file when join "
1231 "the OI scrub: rc = %d\n", osd_scrub2name(scrub), rc);
1233 spin_lock(&scrub->os_lock);
1234 scrub->os_waiting = 0;
1235 scrub->os_paused = 0;
1236 scrub->os_partial_scan = 0;
1237 scrub->os_in_join = 0;
1238 scrub->os_full_scrub = 0;
1239 spin_unlock(&scrub->os_lock);
1240 wake_up_all(&thread->t_ctl_waitq);
1241 up_write(&scrub->os_rwsem);
1246 static int osd_inode_iteration(struct osd_thread_info *info,
1247 struct osd_device *dev, __u32 max, bool preload)
1249 struct osd_scrub *scrub = &dev->od_scrub;
1250 struct ptlrpc_thread *thread = &scrub->os_thread;
1251 struct scrub_file *sf = &scrub->os_file;
1252 osd_iit_next_policy next;
1253 osd_iit_exec_policy exec;
1256 struct osd_iit_param param = { NULL };
1257 struct l_wait_info lwi = { 0 };
1263 param.sb = osd_sb(dev);
1267 while (scrub->os_partial_scan && !scrub->os_in_join) {
1268 struct osd_idmap_cache *oic = NULL;
1270 rc = osd_scrub_next(info, dev, ¶m, &oic, noslot);
1272 case SCRUB_NEXT_EXIT:
1274 case SCRUB_NEXT_CRASH:
1275 RETURN(SCRUB_IT_CRASH);
1276 case SCRUB_NEXT_FATAL:
1278 case SCRUB_NEXT_WAIT: {
1279 struct kstatfs *ksfs = &info->oti_ksfs;
1282 if (dev->od_full_scrub_ratio == OFSR_NEVER ||
1283 unlikely(sf->sf_items_updated_prior == 0))
1286 if (dev->od_full_scrub_ratio == OFSR_DIRECTLY ||
1287 scrub->os_full_scrub) {
1288 osd_scrub_join(dev, SS_AUTO_FULL | SS_RESET,
1293 rc = param.sb->s_op->statfs(param.sb->s_root, ksfs);
1295 __u64 used = ksfs->f_files - ksfs->f_ffree;
1297 do_div(used, sf->sf_items_updated_prior);
1298 /* If we hit too much inconsistent OI
1299 * mappings during the partial scan,
1300 * then scan the device completely. */
1301 if (used < dev->od_full_scrub_ratio) {
1303 SS_AUTO_FULL | SS_RESET, true);
1309 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) &&
1313 saved_flags = sf->sf_flags;
1314 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
1315 SF_UPGRADE | SF_AUTO);
1316 sf->sf_status = SS_COMPLETED;
1317 l_wait_event(thread->t_ctl_waitq,
1318 !thread_is_running(thread) ||
1319 !scrub->os_partial_scan ||
1320 scrub->os_in_join ||
1321 !list_empty(&scrub->os_inconsistent_items),
1323 sf->sf_flags = saved_flags;
1324 sf->sf_status = SS_SCANNING;
1326 if (unlikely(!thread_is_running(thread)))
1329 if (!scrub->os_partial_scan || scrub->os_in_join)
1335 LASSERTF(rc == 0, "rc = %d\n", rc);
1337 osd_scrub_exec(info, dev, ¶m, oic, &noslot, rc);
1344 l_wait_event(thread->t_ctl_waitq,
1345 !thread_is_running(thread) || !scrub->os_in_join,
1348 if (unlikely(!thread_is_running(thread)))
1354 next = osd_scrub_next;
1355 exec = osd_scrub_exec;
1356 pos = &scrub->os_pos_current;
1357 count = &scrub->os_new_checked;
1359 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1361 next = osd_preload_next;
1362 exec = osd_preload_exec;
1363 pos = &ooc->ooc_pos_preload;
1364 count = &ooc->ooc_cached_items;
1366 limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
1368 while (*pos <= limit && *count < max) {
1369 struct osd_idmap_cache *oic = NULL;
1370 struct ldiskfs_group_desc *desc;
1372 param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
1373 desc = ldiskfs_get_group_desc(param.sb, param.bg, NULL);
1377 ldiskfs_lock_group(param.sb, param.bg);
1378 if (desc->bg_flags & cpu_to_le16(LDISKFS_BG_INODE_UNINIT)) {
1379 ldiskfs_unlock_group(param.sb, param.bg);
1380 *pos = 1 + (param.bg + 1) *
1381 LDISKFS_INODES_PER_GROUP(param.sb);
1384 ldiskfs_unlock_group(param.sb, param.bg);
1386 param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
1387 param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1388 param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
1389 if (param.bitmap == NULL) {
1390 CDEBUG(D_LFSCK, "%.16s: fail to read bitmap for %u, "
1391 "scrub will stop, urgent mode\n",
1392 osd_scrub2name(scrub), (__u32)param.bg);
1396 while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
1399 ldiskfs_itable_unused_count(param.sb, desc) >
1400 LDISKFS_INODES_PER_GROUP(param.sb))
1403 rc = next(info, dev, ¶m, &oic, noslot);
1405 case SCRUB_NEXT_BREAK:
1407 case SCRUB_NEXT_EXIT:
1408 brelse(param.bitmap);
1410 case SCRUB_NEXT_CRASH:
1411 brelse(param.bitmap);
1412 RETURN(SCRUB_IT_CRASH);
1413 case SCRUB_NEXT_FATAL:
1414 brelse(param.bitmap);
1418 rc = exec(info, dev, ¶m, oic, &noslot, rc);
1420 brelse(param.bitmap);
1426 brelse(param.bitmap);
1430 RETURN(SCRUB_IT_ALL);
1434 static int osd_otable_it_preload(const struct lu_env *env,
1435 struct osd_otable_it *it)
1437 struct osd_device *dev = it->ooi_dev;
1438 struct osd_scrub *scrub = &dev->od_scrub;
1439 struct osd_otable_cache *ooc = &it->ooi_cache;
1443 rc = osd_inode_iteration(osd_oti_get(env), dev,
1444 OSD_OTABLE_IT_CACHE_SIZE, true);
1445 if (rc == SCRUB_IT_ALL)
1446 it->ooi_all_cached = 1;
1448 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1449 spin_lock(&scrub->os_lock);
1450 scrub->os_waiting = 0;
1451 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1452 spin_unlock(&scrub->os_lock);
1455 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1458 static int osd_scrub_main(void *args)
1461 struct osd_device *dev = (struct osd_device *)args;
1462 struct osd_scrub *scrub = &dev->od_scrub;
1463 struct ptlrpc_thread *thread = &scrub->os_thread;
1467 rc = lu_env_init(&env, LCT_LOCAL);
1469 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n",
1470 osd_scrub2name(scrub), rc);
1474 rc = osd_scrub_prep(dev);
1476 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n",
1477 osd_scrub2name(scrub), rc);
1481 if (!scrub->os_full_speed && !scrub->os_partial_scan) {
1482 struct l_wait_info lwi = { 0 };
1483 struct osd_otable_it *it = dev->od_otable_it;
1484 struct osd_otable_cache *ooc = &it->ooi_cache;
1486 l_wait_event(thread->t_ctl_waitq,
1487 it->ooi_user_ready || !thread_is_running(thread),
1489 if (unlikely(!thread_is_running(thread)))
1492 scrub->os_pos_current = ooc->ooc_pos_preload;
1495 CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n",
1496 osd_scrub2name(scrub), scrub->os_start_flags,
1497 scrub->os_pos_current);
1499 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1500 if (unlikely(rc == SCRUB_IT_CRASH))
1501 GOTO(out, rc = -EINVAL);
1505 osd_scrub_post(scrub, rc);
1506 CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n",
1507 osd_scrub2name(scrub), scrub->os_pos_current, rc);
1510 while (!list_empty(&scrub->os_inconsistent_items)) {
1511 struct osd_inconsistent_item *oii;
1513 oii = list_entry(scrub->os_inconsistent_items.next,
1514 struct osd_inconsistent_item, oii_list);
1515 list_del_init(&oii->oii_list);
1521 spin_lock(&scrub->os_lock);
1522 thread_set_flags(thread, SVC_STOPPED);
1523 wake_up_all(&thread->t_ctl_waitq);
1524 spin_unlock(&scrub->os_lock);
1528 /* initial OI scrub */
1530 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1531 struct dentry *, filldir_t filldir);
1533 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1534 loff_t offset, __u64 ino, unsigned d_type);
1535 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1536 loff_t offset, __u64 ino, unsigned d_type);
1537 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1538 loff_t offset, __u64 ino, unsigned d_type);
1539 static int osd_ios_uld_fill(void *buf, const char *name, int namelen,
1540 loff_t offset, __u64 ino, unsigned d_type);
1543 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1544 struct dentry *dentry, filldir_t filldir);
1546 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1547 struct dentry *dentry, filldir_t filldir);
1550 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1551 struct dentry *dentry, filldir_t filldir);
1554 OLF_SCAN_SUBITEMS = 0x0001,
1555 OLF_HIDE_FID = 0x0002,
1556 OLF_SHOW_NAME = 0x0004,
1558 OLF_IDX_IN_FID = 0x0010,
1563 struct lu_fid olm_fid;
1566 scandir_t olm_scandir;
1567 filldir_t olm_filldir;
1570 /* Add the new introduced local files in the list in the future. */
1571 static const struct osd_lf_map osd_lf_maps[] = {
1573 { CATLIST, { FID_SEQ_LOCAL_FILE, LLOG_CATALOGS_OID, 0 }, OLF_SHOW_NAME,
1574 sizeof(CATLIST) - 1, NULL, NULL },
1577 { MOUNT_CONFIGS_DIR, { FID_SEQ_LOCAL_FILE, MGS_CONFIGS_OID, 0 },
1578 OLF_SCAN_SUBITEMS, sizeof(MOUNT_CONFIGS_DIR) - 1,
1579 osd_ios_general_scan, osd_ios_varfid_fill },
1581 /* NIDTBL_VERSIONS */
1582 { MGS_NIDTBL_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1583 sizeof(MGS_NIDTBL_DIR) - 1, osd_ios_general_scan,
1584 osd_ios_varfid_fill },
1587 { "PENDING", { 0, 0, 0 }, 0, sizeof("PENDING") - 1, NULL, NULL },
1590 { "ROOT", { FID_SEQ_ROOT, FID_OID_ROOT, 0 },
1591 OLF_SCAN_SUBITEMS | OLF_HIDE_FID, sizeof("ROOT") - 1,
1592 osd_ios_ROOT_scan, NULL },
1594 /* changelog_catalog */
1595 { CHANGELOG_CATALOG, { 0, 0, 0 }, 0, sizeof(CHANGELOG_CATALOG) - 1,
1598 /* changelog_users */
1599 { CHANGELOG_USERS, { 0, 0, 0 }, 0, sizeof(CHANGELOG_USERS) - 1,
1603 { "fld", { FID_SEQ_LOCAL_FILE, FLD_INDEX_OID, 0 }, OLF_SHOW_NAME,
1604 sizeof("fld") - 1, NULL, NULL },
1607 { LAST_RCVD, { FID_SEQ_LOCAL_FILE, LAST_RECV_OID, 0 }, OLF_SHOW_NAME,
1608 sizeof(LAST_RCVD) - 1, NULL, NULL },
1611 { REPLY_DATA, { FID_SEQ_LOCAL_FILE, REPLY_DATA_OID, 0 }, OLF_SHOW_NAME,
1612 sizeof(REPLY_DATA) - 1, NULL, NULL },
1615 { LOV_OBJID, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OID, 0 }, OLF_SHOW_NAME,
1616 sizeof(LOV_OBJID) - 1, NULL, NULL },
1619 { LOV_OBJSEQ, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OSEQ, 0 },
1620 OLF_SHOW_NAME, sizeof(LOV_OBJSEQ) - 1, NULL, NULL },
1623 { QMT_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, sizeof(QMT_DIR) - 1,
1624 osd_ios_general_scan, osd_ios_varfid_fill },
1627 { QSD_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, sizeof(QSD_DIR) - 1,
1628 osd_ios_general_scan, osd_ios_varfid_fill },
1631 { "seq_ctl", { FID_SEQ_LOCAL_FILE, FID_SEQ_CTL_OID, 0 },
1632 OLF_SHOW_NAME, sizeof("seq_ctl") - 1, NULL, NULL },
1635 { "seq_srv", { FID_SEQ_LOCAL_FILE, FID_SEQ_SRV_OID, 0 },
1636 OLF_SHOW_NAME, sizeof("seq_srv") - 1, NULL, NULL },
1639 { HEALTH_CHECK, { FID_SEQ_LOCAL_FILE, OFD_HEALTH_CHECK_OID, 0 },
1640 OLF_SHOW_NAME, sizeof(HEALTH_CHECK) - 1, NULL, NULL },
1643 { LFSCK_DIR, { 0, 0, 0 }, 0, sizeof(LFSCK_DIR) - 1,
1644 osd_ios_general_scan, osd_ios_varfid_fill },
1646 /* lfsck_bookmark */
1647 { LFSCK_BOOKMARK, { 0, 0, 0 }, 0, sizeof(LFSCK_BOOKMARK) - 1,
1651 { LFSCK_LAYOUT, { 0, 0, 0 }, 0, sizeof(LFSCK_LAYOUT) - 1,
1654 /* lfsck_namespace */
1655 { LFSCK_NAMESPACE, { 0, 0, 0 }, 0, sizeof(LFSCK_NAMESPACE) - 1,
1658 /* OBJECTS, upgrade from old device */
1659 { OBJECTS, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, sizeof(OBJECTS) - 1,
1660 osd_ios_OBJECTS_scan, NULL },
1662 /* lquota_v2.user, upgrade from old device */
1663 { "lquota_v2.user", { 0, 0, 0 }, 0, sizeof("lquota_v2.user") - 1,
1666 /* lquota_v2.group, upgrade from old device */
1667 { "lquota_v2.group", { 0, 0, 0 }, 0, sizeof("lquota_v2.group") - 1,
1670 /* LAST_GROUP, upgrade from old device */
1671 { "LAST_GROUP", { FID_SEQ_LOCAL_FILE, OFD_LAST_GROUP_OID, 0 },
1672 OLF_SHOW_NAME, sizeof("LAST_GROUP") - 1, NULL, NULL },
1674 /* committed batchid for cross-MDT operation */
1675 { "BATCHID", { FID_SEQ_LOCAL_FILE, BATCHID_COMMITTED_OID, 0 },
1676 OLF_SHOW_NAME, sizeof("BATCHID") - 1, NULL, NULL },
1678 /* OSP update logs update_log{_dir} use f_seq = FID_SEQ_UPDATE_LOG{_DIR}
1679 * and f_oid = index for their log files. See lu_update_log{_dir}_fid()
1680 * for more details. */
1683 { "update_log", { FID_SEQ_UPDATE_LOG, 0, 0 },
1684 OLF_SHOW_NAME | OLF_IDX_IN_FID, sizeof("update_log") - 1,
1687 /* update_log_dir */
1688 { "update_log_dir", { FID_SEQ_UPDATE_LOG_DIR, 0, 0 },
1689 OLF_SHOW_NAME | OLF_SCAN_SUBITEMS | OLF_IDX_IN_FID,
1690 sizeof("update_log_dir") - 1,
1691 osd_ios_general_scan, osd_ios_uld_fill },
1694 { "lost+found", { FID_SEQ_LOCAL_FILE, OSD_LPF_OID, 0 },
1695 OLF_SCAN_SUBITEMS, sizeof("lost+found") - 1,
1696 osd_ios_general_scan, osd_ios_lf_fill },
1698 { NULL, { 0, 0, 0 }, 0, 0, NULL, NULL }
1701 /* Add the new introduced files under .lustre/ in the list in the future. */
1702 static const struct osd_lf_map osd_dl_maps[] = {
1704 { "fid", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_OBF, 0 }, 0,
1705 sizeof("fid") - 1, NULL, NULL },
1707 /* .lustre/lost+found */
1708 { "lost+found", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_LPF, 0 }, 0,
1709 sizeof("lost+found") - 1, NULL, NULL },
1711 { NULL, { 0, 0, 0 }, 0, 0, NULL, NULL }
1714 struct osd_ios_item {
1715 struct list_head oii_list;
1716 struct dentry *oii_dentry;
1717 scandir_t oii_scandir;
1718 filldir_t oii_filldir;
1721 struct osd_ios_filldir_buf {
1722 #ifdef HAVE_DIR_CONTEXT
1723 /* please keep it as first member */
1724 struct dir_context ctx;
1726 struct osd_thread_info *oifb_info;
1727 struct osd_device *oifb_dev;
1728 struct dentry *oifb_dentry;
1731 static inline struct dentry *
1732 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1734 struct dentry *dentry;
1736 dentry = ll_lookup_one_len(name, parent, namelen);
1737 if (!IS_ERR(dentry) && dentry->d_inode == NULL) {
1739 return ERR_PTR(-ENOENT);
1746 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1747 scandir_t scandir, filldir_t filldir)
1749 struct osd_ios_item *item;
1752 OBD_ALLOC_PTR(item);
1756 INIT_LIST_HEAD(&item->oii_list);
1757 item->oii_dentry = dget(dentry);
1758 item->oii_scandir = scandir;
1759 item->oii_filldir = filldir;
1760 list_add_tail(&item->oii_list, &dev->od_ios_list);
1766 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
1768 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
1769 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
1770 * reference the inode, or fixed if it is missing or references another inode.
1773 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
1774 struct inode *inode, const struct lu_fid *fid, int flags)
1776 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1777 struct osd_inode_id *id = &info->oti_id;
1778 struct osd_inode_id *id2 = &info->oti_id2;
1779 struct osd_scrub *scrub = &dev->od_scrub;
1780 struct scrub_file *sf = &scrub->os_file;
1785 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
1786 if (rc != 0 && rc != -ENODATA) {
1787 CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
1788 "rc = %d\n", osd_name(dev), rc);
1793 osd_id_gen(id, inode->i_ino, inode->i_generation);
1794 if (rc == -ENODATA) {
1795 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID) {
1796 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
1799 if (flags & OLF_IDX_IN_FID) {
1800 LASSERT(dev->od_index >= 0);
1802 tfid.f_oid = dev->od_index;
1805 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
1807 CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
1808 "scrub: rc = %d\n", osd_name(dev), rc);
1813 if (lma->lma_compat & LMAC_NOT_IN_OI)
1816 tfid = lma->lma_self_fid;
1819 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
1824 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1825 DTO_INDEX_INSERT, true, 0);
1832 if (osd_id_eq_strict(id, id2))
1835 if (!(sf->sf_flags & SF_INCONSISTENT)) {
1836 osd_scrub_file_reset(scrub,
1837 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1839 rc = osd_scrub_file_store(scrub);
1844 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1845 DTO_INDEX_UPDATE, true, 0);
1853 * It scans the /lost+found, and for the OST-object (with filter_fid
1854 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
1856 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1857 loff_t offset, __u64 ino, unsigned d_type)
1859 struct osd_ios_filldir_buf *fill_buf = buf;
1860 struct osd_thread_info *info = fill_buf->oifb_info;
1861 struct osd_device *dev = fill_buf->oifb_dev;
1862 struct lu_fid *fid = &info->oti_fid;
1863 struct osd_scrub *scrub = &dev->od_scrub;
1864 struct dentry *parent = fill_buf->oifb_dentry;
1865 struct dentry *child;
1866 struct inode *dir = parent->d_inode;
1867 struct inode *inode;
1871 /* skip any '.' started names */
1875 scrub->os_lf_scanned++;
1876 child = osd_ios_lookup_one_len(name, parent, namelen);
1877 if (IS_ERR(child)) {
1878 CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
1879 osd_name(dev), namelen, name, (int)PTR_ERR(child));
1883 inode = child->d_inode;
1884 if (S_ISDIR(inode->i_mode)) {
1885 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1888 CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
1889 "rc = %d\n", osd_name(dev), namelen, name, rc);
1893 if (!S_ISREG(inode->i_mode))
1896 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
1897 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
1898 rc = osd_obj_map_recover(info, dev, dir, child, fid);
1900 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
1901 "/lost+found.\n", namelen, name, PFID(fid));
1902 scrub->os_lf_repaired++;
1904 CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
1906 osd_name(dev), namelen, name, PFID(fid), rc);
1910 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
1911 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
1912 * can process them in furtuer. */
1918 scrub->os_lf_failed++;
1920 /* skip the failure to make the scanning to continue. */
1924 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1925 loff_t offset, __u64 ino, unsigned d_type)
1927 struct osd_ios_filldir_buf *fill_buf = buf;
1928 struct osd_device *dev = fill_buf->oifb_dev;
1929 struct dentry *child;
1933 /* skip any '.' started names */
1937 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1939 RETURN(PTR_ERR(child));
1941 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1943 if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
1944 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1945 osd_ios_varfid_fill);
1951 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1952 loff_t offset, __u64 ino, unsigned d_type)
1954 struct osd_ios_filldir_buf *fill_buf = buf;
1955 struct osd_device *dev = fill_buf->oifb_dev;
1956 const struct osd_lf_map *map;
1957 struct dentry *child;
1961 /* skip any '.' started names */
1965 for (map = osd_dl_maps; map->olm_name != NULL; map++) {
1966 if (map->olm_namelen != namelen)
1969 if (strncmp(map->olm_name, name, namelen) == 0)
1973 if (map->olm_name == NULL)
1976 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1978 RETURN(PTR_ERR(child));
1980 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1981 &map->olm_fid, map->olm_flags);
1987 static int osd_ios_uld_fill(void *buf, const char *name, int namelen,
1988 loff_t offset, __u64 ino, unsigned d_type)
1990 struct osd_ios_filldir_buf *fill_buf = buf;
1991 struct dentry *child;
1996 /* skip any non-DFID format name */
2000 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2002 RETURN(PTR_ERR(child));
2004 /* skip the start '[' */
2005 sscanf(&name[1], SFID, RFID(&tfid));
2006 if (fid_is_sane(&tfid))
2007 rc = osd_ios_scan_one(fill_buf->oifb_info, fill_buf->oifb_dev,
2008 child->d_inode, &tfid, 0);
2016 static int osd_ios_root_fill(void *buf, const char *name, int namelen,
2017 loff_t offset, __u64 ino, unsigned d_type)
2019 struct osd_ios_filldir_buf *fill_buf = buf;
2020 struct osd_device *dev = fill_buf->oifb_dev;
2021 const struct osd_lf_map *map;
2022 struct dentry *child;
2026 /* skip any '.' started names */
2030 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
2031 if (map->olm_namelen != namelen)
2034 if (strncmp(map->olm_name, name, namelen) == 0)
2038 if (map->olm_name == NULL)
2041 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2043 RETURN(PTR_ERR(child));
2045 if (!(map->olm_flags & OLF_NO_OI))
2046 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2047 &map->olm_fid, map->olm_flags);
2048 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
2049 rc = osd_ios_new_item(dev, child, map->olm_scandir,
2057 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
2058 struct dentry *dentry, filldir_t filldir)
2060 struct osd_ios_filldir_buf buf = {
2061 #ifdef HAVE_DIR_CONTEXT
2062 .ctx.actor = filldir,
2066 .oifb_dentry = dentry };
2067 struct file *filp = &info->oti_file;
2068 struct inode *inode = dentry->d_inode;
2069 const struct file_operations *fops = inode->i_fop;
2073 LASSERT(filldir != NULL);
2076 filp->f_path.dentry = dentry;
2077 filp->f_mode = FMODE_64BITHASH;
2078 filp->f_mapping = inode->i_mapping;
2080 filp->private_data = NULL;
2081 set_file_inode(filp, inode);
2083 #ifdef HAVE_DIR_CONTEXT
2084 buf.ctx.pos = filp->f_pos;
2085 rc = fops->iterate(filp, &buf.ctx);
2086 filp->f_pos = buf.ctx.pos;
2088 rc = fops->readdir(filp, &buf, filldir);
2090 fops->release(inode, filp);
2096 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
2097 struct dentry *dentry, filldir_t filldir)
2099 struct osd_scrub *scrub = &dev->od_scrub;
2100 struct scrub_file *sf = &scrub->os_file;
2101 struct dentry *child;
2105 /* It is existing MDT0 device. We only allow the case of object without
2106 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
2107 * can generate IGIF mode FID for the object and related OI mapping. If
2108 * it is on other MDTs, then becuase file-level backup/restore, related
2109 * OI mapping may be invalid already, we do not know which is the right
2110 * FID for the object. We only allow IGIF objects to reside on the MDT0.
2112 * XXX: For the case of object on non-MDT0 device with neither LMA nor
2113 * "fid" xattr, then something crashed. We cannot re-generate the
2114 * FID directly, instead, the OI scrub will scan the OI structure
2115 * and try to re-generate the LMA from the OI mapping. But if the
2116 * OI mapping crashed or lost also, then we have to give up under
2117 * double failure cases. */
2118 scrub->os_convert_igif = 1;
2119 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
2120 strlen(dot_lustre_name));
2121 if (IS_ERR(child)) {
2122 rc = PTR_ERR(child);
2123 if (rc == -ENOENT) {
2124 /* It is 1.8 MDT device. */
2125 if (!(sf->sf_flags & SF_UPGRADE)) {
2126 osd_scrub_file_reset(scrub,
2127 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
2129 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2130 rc = osd_scrub_file_store(scrub);
2136 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
2137 * so the client will get IGIF for the ".lustre" object when
2140 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
2141 * it does not know whether there are some old clients cached
2142 * the ".lustre" IGIF during the upgrading. Two choices:
2144 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
2145 * It will allow the old connected clients to access the
2146 * ".lustre" with cached IGIF. But it will cause others
2147 * on the MDT failed to check "fid_is_dot_lustre()".
2149 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
2150 * for ".lustre" in spite of whether there are some clients
2151 * cached the ".lustre" IGIF or not. It enables the check
2152 * "fid_is_dot_lustre()" on the MDT, although it will cause
2153 * that the old connected clients cannot access the ".lustre"
2154 * with the cached IGIF.
2156 * Usually, it is rare case for the old connected clients
2157 * to access the ".lustre" with cached IGIF. So we prefer
2158 * to the solution 2). */
2159 rc = osd_ios_scan_one(info, dev, child->d_inode,
2160 &LU_DOT_LUSTRE_FID, 0);
2162 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2171 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
2172 struct dentry *dentry, filldir_t filldir)
2174 struct osd_scrub *scrub = &dev->od_scrub;
2175 struct scrub_file *sf = &scrub->os_file;
2176 struct dentry *child;
2180 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
2181 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2182 rc = osd_scrub_file_store(scrub);
2187 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
2188 if (!IS_ERR(child)) {
2189 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2192 rc = PTR_ERR(child);
2195 if (rc != 0 && rc != -ENOENT)
2198 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
2199 if (!IS_ERR(child)) {
2200 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2203 rc = PTR_ERR(child);
2212 static int osd_initial_OI_scrub(struct osd_thread_info *info,
2213 struct osd_device *dev)
2215 struct osd_ios_item *item = NULL;
2216 scandir_t scandir = osd_ios_general_scan;
2217 filldir_t filldir = osd_ios_root_fill;
2218 struct dentry *dentry = osd_sb(dev)->s_root;
2219 const struct osd_lf_map *map = osd_lf_maps;
2223 /* Lookup IGIF in OI by force for initial OI scrub. */
2224 dev->od_igif_inoi = 1;
2227 rc = scandir(info, dev, dentry, filldir);
2229 dput(item->oii_dentry);
2236 if (list_empty(&dev->od_ios_list))
2239 item = list_entry(dev->od_ios_list.next,
2240 struct osd_ios_item, oii_list);
2241 list_del_init(&item->oii_list);
2243 LASSERT(item->oii_scandir != NULL);
2244 scandir = item->oii_scandir;
2245 filldir = item->oii_filldir;
2246 dentry = item->oii_dentry;
2249 while (!list_empty(&dev->od_ios_list)) {
2250 item = list_entry(dev->od_ios_list.next,
2251 struct osd_ios_item, oii_list);
2252 list_del_init(&item->oii_list);
2253 dput(item->oii_dentry);
2260 /* There maybe the case that the object has been removed, but its OI
2261 * mapping is still in the OI file, such as the "CATALOGS" after MDT
2262 * file-level backup/restore. So here cleanup the stale OI mappings. */
2263 while (map->olm_name != NULL) {
2264 struct dentry *child;
2266 if (fid_is_zero(&map->olm_fid)) {
2271 child = osd_ios_lookup_one_len(map->olm_name,
2272 osd_sb(dev)->s_root,
2276 else if (PTR_ERR(child) == -ENOENT)
2277 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
2278 NULL, DTO_INDEX_DELETE,
2286 char *osd_lf_fid2name(const struct lu_fid *fid)
2288 const struct osd_lf_map *map = osd_lf_maps;
2290 while (map->olm_name != NULL) {
2291 if (!lu_fid_eq(fid, &map->olm_fid)) {
2296 if (map->olm_flags & OLF_SHOW_NAME)
2297 return map->olm_name;
2305 /* OI scrub start/stop */
2307 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
2309 struct osd_scrub *scrub = &dev->od_scrub;
2310 struct ptlrpc_thread *thread = &scrub->os_thread;
2311 struct l_wait_info lwi = { 0 };
2312 struct task_struct *task;
2316 /* os_lock: sync status between stop and scrub thread */
2317 spin_lock(&scrub->os_lock);
2320 if (thread_is_running(thread)) {
2321 spin_unlock(&scrub->os_lock);
2322 if (!(scrub->os_file.sf_flags & SF_AUTO) ||
2323 (flags & (SS_AUTO_FULL | SS_AUTO_PARTIAL)))
2326 osd_scrub_join(dev, flags, false);
2327 spin_lock(&scrub->os_lock);
2328 if (!thread_is_running(thread))
2331 spin_unlock(&scrub->os_lock);
2335 if (unlikely(thread_is_stopping(thread))) {
2336 spin_unlock(&scrub->os_lock);
2337 l_wait_event(thread->t_ctl_waitq,
2338 thread_is_stopped(thread),
2340 spin_lock(&scrub->os_lock);
2343 spin_unlock(&scrub->os_lock);
2345 if (scrub->os_file.sf_status == SS_COMPLETED) {
2346 if (!(flags & SS_SET_FAILOUT))
2347 flags |= SS_CLEAR_FAILOUT;
2349 if (!(flags & SS_SET_DRYRUN))
2350 flags |= SS_CLEAR_DRYRUN;
2355 scrub->os_start_flags = flags;
2356 thread_set_flags(thread, 0);
2357 task = kthread_run(osd_scrub_main, dev, "OI_scrub");
2360 CERROR("%.16s: cannot start iteration thread: rc = %d\n",
2361 osd_scrub2name(scrub), rc);
2365 l_wait_event(thread->t_ctl_waitq,
2366 thread_is_running(thread) || thread_is_stopped(thread),
2372 int osd_scrub_start(struct osd_device *dev, __u32 flags)
2377 /* od_otable_mutex: prevent curcurrent start/stop */
2378 mutex_lock(&dev->od_otable_mutex);
2379 rc = do_osd_scrub_start(dev, flags);
2380 mutex_unlock(&dev->od_otable_mutex);
2382 RETURN(rc == -EALREADY ? 0 : rc);
2385 static void do_osd_scrub_stop(struct osd_scrub *scrub)
2387 struct ptlrpc_thread *thread = &scrub->os_thread;
2388 struct l_wait_info lwi = { 0 };
2390 /* os_lock: sync status between stop and scrub thread */
2391 spin_lock(&scrub->os_lock);
2392 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
2393 thread_set_flags(thread, SVC_STOPPING);
2394 spin_unlock(&scrub->os_lock);
2395 wake_up_all(&thread->t_ctl_waitq);
2396 l_wait_event(thread->t_ctl_waitq,
2397 thread_is_stopped(thread),
2399 /* Do not skip the last lock/unlock, which can guarantee that
2400 * the caller cannot return until the OI scrub thread exit. */
2401 spin_lock(&scrub->os_lock);
2403 spin_unlock(&scrub->os_lock);
2406 static void osd_scrub_stop(struct osd_device *dev)
2408 /* od_otable_mutex: prevent curcurrent start/stop */
2409 mutex_lock(&dev->od_otable_mutex);
2410 dev->od_scrub.os_paused = 1;
2411 do_osd_scrub_stop(&dev->od_scrub);
2412 mutex_unlock(&dev->od_otable_mutex);
2415 /* OI scrub setup/cleanup */
2417 static const char osd_scrub_name[] = "OI_scrub";
2419 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2421 struct osd_thread_info *info = osd_oti_get(env);
2422 struct osd_scrub *scrub = &dev->od_scrub;
2423 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2424 struct scrub_file *sf = &scrub->os_file;
2425 struct super_block *sb = osd_sb(dev);
2426 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2427 struct lvfs_run_ctxt saved;
2429 struct inode *inode;
2430 struct lu_fid *fid = &info->oti_fid;
2435 memset(scrub, 0, sizeof(*scrub));
2436 OBD_SET_CTXT_MAGIC(ctxt);
2437 ctxt->pwdmnt = dev->od_mnt;
2438 ctxt->pwd = dev->od_mnt->mnt_root;
2439 ctxt->fs = get_ds();
2441 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2442 init_rwsem(&scrub->os_rwsem);
2443 spin_lock_init(&scrub->os_lock);
2444 INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2446 push_ctxt(&saved, ctxt);
2447 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2449 pop_ctxt(&saved, ctxt);
2450 RETURN(PTR_ERR(filp));
2453 inode = filp->f_path.dentry->d_inode;
2454 /* 'What the @fid is' is not imporatant, because the object
2455 * has no OI mapping, and only is visible inside the OSD.*/
2456 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2457 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2459 filp_close(filp, NULL);
2460 pop_ctxt(&saved, ctxt);
2464 scrub->os_inode = igrab(inode);
2465 filp_close(filp, NULL);
2466 pop_ctxt(&saved, ctxt);
2468 rc = osd_scrub_file_load(scrub);
2469 if (rc == -ENOENT) {
2470 osd_scrub_file_init(scrub, es->s_uuid);
2471 /* If the "/O" dir does not exist when mount (indicated by
2472 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2473 * then it is quite probably that the device is a new one,
2474 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2476 * For the rare case that "/O" and "OI_scrub" both lost on
2477 * an old device, it can be found and cleared later.
2479 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2480 * need to check "filter_fid_old" and to convert it to
2481 * "filter_fid" for each object, and all the IGIF should
2482 * have their FID mapping in OI files already. */
2483 if (dev->od_maybe_new)
2484 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2486 } else if (rc != 0) {
2487 GOTO(cleanup_inode, rc);
2489 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2490 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2492 } else if (sf->sf_status == SS_SCANNING) {
2493 sf->sf_status = SS_CRASHED;
2498 if (sf->sf_pos_last_checkpoint != 0)
2499 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2501 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2504 rc = osd_scrub_file_store(scrub);
2506 GOTO(cleanup_inode, rc);
2509 /* Initialize OI files. */
2510 rc = osd_oi_init(info, dev);
2512 GOTO(cleanup_inode, rc);
2514 rc = osd_initial_OI_scrub(info, dev);
2516 GOTO(cleanup_oi, rc);
2518 if (sf->sf_flags & SF_UPGRADE ||
2519 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2520 sf->sf_success_count > 0)) {
2521 dev->od_igif_inoi = 0;
2522 dev->od_check_ff = dev->od_is_ost;
2524 dev->od_igif_inoi = 1;
2525 dev->od_check_ff = 0;
2528 if (sf->sf_flags & SF_INCONSISTENT)
2529 /* The 'od_igif_inoi' will be set under the
2531 * 1) new created system, or
2532 * 2) restored from file-level backup, or
2533 * 3) the upgrading completed.
2535 * The 'od_igif_inoi' may be cleared by OI scrub
2536 * later if found that the system is upgrading. */
2537 dev->od_igif_inoi = 1;
2539 if (!dev->od_noscrub &&
2540 ((sf->sf_status == SS_PAUSED) ||
2541 (sf->sf_status == SS_CRASHED &&
2542 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2543 SF_UPGRADE | SF_AUTO)) ||
2544 (sf->sf_status == SS_INIT &&
2545 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2547 rc = osd_scrub_start(dev, SS_AUTO_FULL);
2550 GOTO(cleanup_oi, rc);
2552 /* it is possible that dcache entries may keep objects after they are
2553 * deleted by OSD. While it looks safe this can cause object data to
2554 * stay until umount causing failures in tests calculating free space,
2555 * e.g. replay-ost-single. Since those dcache entries are not used
2556 * anymore let's just free them after use here */
2557 shrink_dcache_sb(sb);
2561 osd_oi_fini(info, dev);
2563 iput(scrub->os_inode);
2564 scrub->os_inode = NULL;
2569 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2571 struct osd_scrub *scrub = &dev->od_scrub;
2573 LASSERT(dev->od_otable_it == NULL);
2575 if (scrub->os_inode != NULL) {
2576 osd_scrub_stop(dev);
2577 iput(scrub->os_inode);
2578 scrub->os_inode = NULL;
2580 if (dev->od_oi_table != NULL)
2581 osd_oi_fini(osd_oti_get(env), dev);
2584 /* object table based iteration APIs */
2586 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2587 struct dt_object *dt, __u32 attr)
2589 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2590 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2591 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2592 struct osd_scrub *scrub = &dev->od_scrub;
2593 struct osd_otable_it *it;
2598 /* od_otable_mutex: prevent curcurrent init/fini */
2599 mutex_lock(&dev->od_otable_mutex);
2600 if (dev->od_otable_it != NULL)
2601 GOTO(out, it = ERR_PTR(-EALREADY));
2605 GOTO(out, it = ERR_PTR(-ENOMEM));
2607 dev->od_otable_it = it;
2609 it->ooi_cache.ooc_consumer_idx = -1;
2610 if (flags & DOIF_OUTUSED)
2611 it->ooi_used_outside = 1;
2613 if (flags & DOIF_RESET)
2616 if (valid & DOIV_ERROR_HANDLE) {
2617 if (flags & DOIF_FAILOUT)
2618 start |= SS_SET_FAILOUT;
2620 start |= SS_CLEAR_FAILOUT;
2623 if (valid & DOIV_DRYRUN) {
2624 if (flags & DOIF_DRYRUN)
2625 start |= SS_SET_DRYRUN;
2627 start |= SS_CLEAR_DRYRUN;
2630 rc = do_osd_scrub_start(dev, start & ~SS_AUTO_PARTIAL);
2631 if (rc < 0 && rc != -EALREADY) {
2632 dev->od_otable_it = NULL;
2634 GOTO(out, it = ERR_PTR(rc));
2637 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2642 mutex_unlock(&dev->od_otable_mutex);
2643 return (struct dt_it *)it;
2646 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2648 struct osd_otable_it *it = (struct osd_otable_it *)di;
2649 struct osd_device *dev = it->ooi_dev;
2651 /* od_otable_mutex: prevent curcurrent init/fini */
2652 mutex_lock(&dev->od_otable_mutex);
2653 do_osd_scrub_stop(&dev->od_scrub);
2654 LASSERT(dev->od_otable_it == it);
2656 dev->od_otable_it = NULL;
2657 mutex_unlock(&dev->od_otable_mutex);
2661 static int osd_otable_it_get(const struct lu_env *env,
2662 struct dt_it *di, const struct dt_key *key)
2667 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2672 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2674 spin_lock(&scrub->os_lock);
2675 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2676 scrub->os_waiting ||
2677 !thread_is_running(&scrub->os_thread))
2678 it->ooi_waiting = 0;
2680 it->ooi_waiting = 1;
2681 spin_unlock(&scrub->os_lock);
2683 return !it->ooi_waiting;
2686 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2688 struct osd_otable_it *it = (struct osd_otable_it *)di;
2689 struct osd_device *dev = it->ooi_dev;
2690 struct osd_scrub *scrub = &dev->od_scrub;
2691 struct osd_otable_cache *ooc = &it->ooi_cache;
2692 struct ptlrpc_thread *thread = &scrub->os_thread;
2693 struct l_wait_info lwi = { 0 };
2697 LASSERT(it->ooi_user_ready);
2700 if (!thread_is_running(thread) && !it->ooi_used_outside)
2703 if (ooc->ooc_cached_items > 0) {
2704 ooc->ooc_cached_items--;
2705 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
2706 ~OSD_OTABLE_IT_CACHE_MASK;
2710 if (it->ooi_all_cached) {
2711 l_wait_event(thread->t_ctl_waitq,
2712 !thread_is_running(thread),
2717 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
2718 spin_lock(&scrub->os_lock);
2719 scrub->os_waiting = 0;
2720 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2721 spin_unlock(&scrub->os_lock);
2724 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
2725 l_wait_event(thread->t_ctl_waitq,
2726 osd_otable_it_wakeup(scrub, it),
2729 if (!thread_is_running(thread) && !it->ooi_used_outside)
2732 rc = osd_otable_it_preload(env, it);
2739 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
2740 const struct dt_it *di)
2745 static int osd_otable_it_key_size(const struct lu_env *env,
2746 const struct dt_it *di)
2748 return sizeof(__u64);
2751 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
2752 struct dt_rec *rec, __u32 attr)
2754 struct osd_otable_it *it = (struct osd_otable_it *)di;
2755 struct osd_otable_cache *ooc = &it->ooi_cache;
2757 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
2759 /* Filter out Invald FID already. */
2760 LASSERTF(fid_is_sane((struct lu_fid *)rec),
2761 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
2762 PFID((struct lu_fid *)rec),
2763 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
2768 static __u64 osd_otable_it_store(const struct lu_env *env,
2769 const struct dt_it *di)
2771 struct osd_otable_it *it = (struct osd_otable_it *)di;
2772 struct osd_otable_cache *ooc = &it->ooi_cache;
2775 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
2776 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
2778 hash = ooc->ooc_pos_preload;
2783 * Set the OSD layer iteration start position as the specified hash.
2785 static int osd_otable_it_load(const struct lu_env *env,
2786 const struct dt_it *di, __u64 hash)
2788 struct osd_otable_it *it = (struct osd_otable_it *)di;
2789 struct osd_device *dev = it->ooi_dev;
2790 struct osd_otable_cache *ooc = &it->ooi_cache;
2791 struct osd_scrub *scrub = &dev->od_scrub;
2795 /* Forbid to set iteration position after iteration started. */
2796 if (it->ooi_user_ready)
2799 if (hash > OSD_OTABLE_MAX_HASH)
2800 hash = OSD_OTABLE_MAX_HASH;
2802 ooc->ooc_pos_preload = hash;
2803 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
2804 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
2806 it->ooi_user_ready = 1;
2807 if (!scrub->os_full_speed)
2808 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2810 /* Unplug OSD layer iteration by the first next() call. */
2811 rc = osd_otable_it_next(env, (struct dt_it *)it);
2816 static int osd_otable_it_key_rec(const struct lu_env *env,
2817 const struct dt_it *di, void *key_rec)
2822 const struct dt_index_operations osd_otable_ops = {
2824 .init = osd_otable_it_init,
2825 .fini = osd_otable_it_fini,
2826 .get = osd_otable_it_get,
2827 .put = osd_otable_it_put,
2828 .next = osd_otable_it_next,
2829 .key = osd_otable_it_key,
2830 .key_size = osd_otable_it_key_size,
2831 .rec = osd_otable_it_rec,
2832 .store = osd_otable_it_store,
2833 .load = osd_otable_it_load,
2834 .key_rec = osd_otable_it_key_rec,
2838 /* high priority inconsistent items list APIs */
2840 #define SCRUB_BAD_OIMAP_DECAY_INTERVAL 60
2842 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
2845 struct osd_inconsistent_item *oii;
2846 struct osd_scrub *scrub = &dev->od_scrub;
2847 struct ptlrpc_thread *thread = &scrub->os_thread;
2852 if (unlikely(oii == NULL))
2855 INIT_LIST_HEAD(&oii->oii_list);
2856 oii->oii_cache = *oic;
2857 oii->oii_insert = insert;
2859 if (scrub->os_partial_scan) {
2860 __u64 now = cfs_time_current_sec();
2862 /* If there haven't been errors in a long time,
2863 * decay old count until either the errors are
2864 * gone or we reach the current interval. */
2865 while (unlikely(scrub->os_bad_oimap_count > 0 &&
2866 scrub->os_bad_oimap_time +
2867 SCRUB_BAD_OIMAP_DECAY_INTERVAL < now)) {
2868 scrub->os_bad_oimap_count >>= 1;
2869 scrub->os_bad_oimap_time +=
2870 SCRUB_BAD_OIMAP_DECAY_INTERVAL;
2873 scrub->os_bad_oimap_time = now;
2874 if (++scrub->os_bad_oimap_count >
2875 dev->od_full_scrub_threshold_rate)
2876 scrub->os_full_scrub = 1;
2879 spin_lock(&scrub->os_lock);
2880 if (unlikely(!thread_is_running(thread))) {
2881 spin_unlock(&scrub->os_lock);
2886 if (list_empty(&scrub->os_inconsistent_items))
2888 list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
2889 spin_unlock(&scrub->os_lock);
2892 wake_up_all(&thread->t_ctl_waitq);
2897 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
2898 struct osd_inode_id *id)
2900 struct osd_scrub *scrub = &dev->od_scrub;
2901 struct osd_inconsistent_item *oii;
2904 spin_lock(&scrub->os_lock);
2905 list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
2906 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
2907 *id = oii->oii_cache.oic_lid;
2908 spin_unlock(&scrub->os_lock);
2912 spin_unlock(&scrub->os_lock);
2919 static const char *scrub_status_names[] = {
2930 static const char *scrub_flags_names[] = {
2938 static const char *scrub_param_names[] = {
2944 static int scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
2951 rc = seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
2955 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
2958 rc = seq_printf(m, "%s%c", names[i],
2959 bits != 0 ? ',' : '\n');
2967 static int scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
2972 rc = seq_printf(m, "%s: "LPU64" seconds\n", prefix,
2973 cfs_time_current_sec() - time);
2975 rc = seq_printf(m, "%s: N/A\n", prefix);
2979 static int scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
2984 rc = seq_printf(m, "%s: "LPU64"\n", prefix, pos);
2986 rc = seq_printf(m, "%s: N/A\n", prefix);
2990 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
2992 struct osd_scrub *scrub = &dev->od_scrub;
2993 struct scrub_file *sf = &scrub->os_file;
2998 down_read(&scrub->os_rwsem);
2999 rc = seq_printf(m, "name: OI_scrub\n"
3003 sf->sf_magic, (int)sf->sf_oi_count,
3004 scrub_status_names[sf->sf_status]);
3008 rc = scrub_bits_dump(m, sf->sf_flags, scrub_flags_names,
3013 rc = scrub_bits_dump(m, sf->sf_param, scrub_param_names,
3018 rc = scrub_time_dump(m, sf->sf_time_last_complete,
3019 "time_since_last_completed");
3023 rc = scrub_time_dump(m, sf->sf_time_latest_start,
3024 "time_since_latest_start");
3028 rc = scrub_time_dump(m, sf->sf_time_last_checkpoint,
3029 "time_since_last_checkpoint");
3033 rc = scrub_pos_dump(m, sf->sf_pos_latest_start,
3034 "latest_start_position");
3038 rc = scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
3039 "last_checkpoint_position");
3043 rc = scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
3044 "first_failure_position");
3048 checked = sf->sf_items_checked + scrub->os_new_checked;
3049 rc = seq_printf(m, "checked: "LPU64"\n"
3050 "updated: "LPU64"\n"
3052 "prior_updated: "LPU64"\n"
3053 "noscrub: "LPU64"\n"
3055 "success_count: %u\n",
3056 checked, sf->sf_items_updated, sf->sf_items_failed,
3057 sf->sf_items_updated_prior, sf->sf_items_noscrub,
3058 sf->sf_items_igif, sf->sf_success_count);
3063 if (thread_is_running(&scrub->os_thread)) {
3064 cfs_duration_t duration = cfs_time_current() -
3065 scrub->os_time_last_checkpoint;
3066 __u64 new_checked = msecs_to_jiffies(scrub->os_new_checked *
3068 __u32 rtime = sf->sf_run_time +
3069 cfs_duration_sec(duration + HALF_SEC);
3072 do_div(new_checked, duration);
3074 do_div(speed, rtime);
3075 rc = seq_printf(m, "run_time: %u seconds\n"
3076 "average_speed: "LPU64" objects/sec\n"
3077 "real-time_speed: "LPU64" objects/sec\n"
3078 "current_position: %u\n"
3079 "lf_scanned: "LPU64"\n"
3080 "lf_repaired: "LPU64"\n"
3081 "lf_failed: "LPU64"\n",
3082 rtime, speed, new_checked, scrub->os_pos_current,
3083 scrub->os_lf_scanned, scrub->os_lf_repaired,
3084 scrub->os_lf_failed);
3086 if (sf->sf_run_time != 0)
3087 do_div(speed, sf->sf_run_time);
3088 rc = seq_printf(m, "run_time: %u seconds\n"
3089 "average_speed: "LPU64" objects/sec\n"
3090 "real-time_speed: N/A\n"
3091 "current_position: N/A\n"
3092 "lf_scanned: "LPU64"\n"
3093 "lf_repaired: "LPU64"\n"
3094 "lf_failed: "LPU64"\n",
3095 sf->sf_run_time, speed, scrub->os_lf_scanned,
3096 scrub->os_lf_repaired, scrub->os_lf_failed);
3100 up_read(&scrub->os_rwsem);
3101 return (rc < 0 ? -ENOSPC : 0);