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 /* The inode has been reused as EA inode, ignore it. */
501 if (unlikely(osd_is_ea_inode(inode)))
504 sf->sf_flags |= SF_UPGRADE;
505 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
506 dev->od_check_ff = 1;
507 rc = osd_scrub_convert_ff(info, dev, inode, fid);
514 if ((val == SCRUB_NEXT_NOLMA) &&
515 (!scrub->os_convert_igif || OBD_FAIL_CHECK(OBD_FAIL_FID_NOLMA)))
518 if ((oii != NULL && oii->oii_insert) || (val == SCRUB_NEXT_NOLMA)) {
519 ops = DTO_INDEX_INSERT;
524 rc = osd_oi_lookup(info, dev, fid, lid2,
525 (val == SCRUB_NEXT_OSTOBJ ||
526 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
529 ops = DTO_INDEX_INSERT;
530 else if (rc != -ESTALE)
535 inode = osd_iget(info, dev, lid);
538 /* Someone removed the inode. */
539 if (rc == -ENOENT || rc == -ESTALE)
544 /* The inode has been reused as EA inode, ignore it. */
545 if (unlikely(osd_is_ea_inode(inode)))
549 if (!scrub->os_partial_scan)
550 scrub->os_full_speed = 1;
552 idx = osd_oi_fid2idx(dev, fid);
554 case SCRUB_NEXT_NOLMA:
555 sf->sf_flags |= SF_UPGRADE;
556 if (!(sf->sf_param & SP_DRYRUN)) {
557 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
562 if (!(sf->sf_flags & SF_INCONSISTENT))
563 dev->od_igif_inoi = 0;
565 case SCRUB_NEXT_OSTOBJ:
566 sf->sf_flags |= SF_INCONSISTENT;
567 case SCRUB_NEXT_OSTOBJ_OLD:
570 sf->sf_flags |= SF_RECREATED;
571 if (unlikely(!ldiskfs_test_bit(idx, sf->sf_oi_bitmap)))
572 ldiskfs_set_bit(idx, sf->sf_oi_bitmap);
575 } else if (osd_id_eq(lid, lid2)) {
577 sf->sf_items_updated++;
581 if (!scrub->os_partial_scan)
582 scrub->os_full_speed = 1;
584 sf->sf_flags |= SF_INCONSISTENT;
586 /* XXX: If the device is restored from file-level backup, then
587 * some IGIFs may have been already in OI files, and some
588 * may be not yet. Means upgrading from 1.8 may be partly
589 * processed, but some clients may hold some immobilized
590 * IGIFs, and use them to access related objects. Under
591 * such case, OSD does not know whether an given IGIF has
592 * been processed or to be processed, and it also cannot
593 * generate local ino#/gen# directly from the immobilized
594 * IGIF because of the backup/restore. Then force OSD to
595 * lookup the given IGIF in OI files, and if no entry,
596 * then ask the client to retry after upgrading completed.
597 * No better choice. */
598 dev->od_igif_inoi = 1;
601 rc = osd_scrub_refresh_mapping(info, dev, fid, lid, ops, false,
602 (val == SCRUB_NEXT_OSTOBJ ||
603 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
605 if (scrub->os_in_prior)
606 sf->sf_items_updated_prior++;
608 sf->sf_items_updated++;
615 sf->sf_items_failed++;
616 if (sf->sf_pos_first_inconsistent == 0 ||
617 sf->sf_pos_first_inconsistent > lid->oii_ino)
618 sf->sf_pos_first_inconsistent = lid->oii_ino;
623 /* There may be conflict unlink during the OI scrub,
624 * if happend, then remove the new added OI mapping. */
625 if (ops == DTO_INDEX_INSERT && inode != NULL && !IS_ERR(inode) &&
626 unlikely(ldiskfs_test_inode_state(inode,
627 LDISKFS_STATE_LUSTRE_DESTROY)))
628 osd_scrub_refresh_mapping(info, dev, fid, lid,
629 DTO_INDEX_DELETE, false,
630 (val == SCRUB_NEXT_OSTOBJ ||
631 val == SCRUB_NEXT_OSTOBJ_OLD) ?
632 OI_KNOWN_ON_OST : 0);
633 up_write(&scrub->os_rwsem);
635 if (inode != NULL && !IS_ERR(inode))
639 LASSERT(list_empty(&oii->oii_list));
644 RETURN(sf->sf_param & SP_FAILOUT ? rc : 0);
649 static int osd_scrub_prep(struct osd_device *dev)
651 struct osd_scrub *scrub = &dev->od_scrub;
652 struct ptlrpc_thread *thread = &scrub->os_thread;
653 struct scrub_file *sf = &scrub->os_file;
654 __u32 flags = scrub->os_start_flags;
656 bool drop_dryrun = false;
659 CDEBUG(D_LFSCK, "%.16s: OI scrub prep, flags = 0x%x\n",
660 osd_scrub2name(scrub), flags);
662 down_write(&scrub->os_rwsem);
663 if (flags & SS_SET_FAILOUT)
664 sf->sf_param |= SP_FAILOUT;
665 else if (flags & SS_CLEAR_FAILOUT)
666 sf->sf_param &= ~SP_FAILOUT;
668 if (flags & SS_SET_DRYRUN) {
669 sf->sf_param |= SP_DRYRUN;
670 } else if (flags & SS_CLEAR_DRYRUN && sf->sf_param & SP_DRYRUN) {
671 sf->sf_param &= ~SP_DRYRUN;
675 if (flags & SS_RESET)
676 osd_scrub_file_reset(scrub,
677 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, 0);
679 if (flags & SS_AUTO_FULL) {
680 scrub->os_full_speed = 1;
681 scrub->os_partial_scan = 0;
682 sf->sf_flags |= SF_AUTO;
683 } else if (flags & SS_AUTO_PARTIAL) {
684 scrub->os_full_speed = 0;
685 scrub->os_partial_scan = 1;
686 sf->sf_flags |= SF_AUTO;
687 } else if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
689 scrub->os_full_speed = 1;
690 scrub->os_partial_scan = 0;
692 scrub->os_full_speed = 0;
693 scrub->os_partial_scan = 0;
696 spin_lock(&scrub->os_lock);
697 scrub->os_in_prior = 0;
698 scrub->os_waiting = 0;
699 scrub->os_paused = 0;
700 scrub->os_in_join = 0;
701 scrub->os_full_scrub = 0;
702 spin_unlock(&scrub->os_lock);
703 scrub->os_new_checked = 0;
704 if (drop_dryrun && sf->sf_pos_first_inconsistent != 0)
705 sf->sf_pos_latest_start = sf->sf_pos_first_inconsistent;
706 else if (sf->sf_pos_last_checkpoint != 0)
707 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
709 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
711 scrub->os_pos_current = sf->sf_pos_latest_start;
712 sf->sf_status = SS_SCANNING;
713 sf->sf_time_latest_start = cfs_time_current_sec();
714 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
715 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
716 rc = osd_scrub_file_store(scrub);
718 spin_lock(&scrub->os_lock);
719 thread_set_flags(thread, SVC_RUNNING);
720 spin_unlock(&scrub->os_lock);
721 wake_up_all(&thread->t_ctl_waitq);
723 up_write(&scrub->os_rwsem);
728 static int osd_scrub_checkpoint(struct osd_scrub *scrub)
730 struct scrub_file *sf = &scrub->os_file;
733 if (likely(cfs_time_before(cfs_time_current(),
734 scrub->os_time_next_checkpoint) ||
735 scrub->os_new_checked == 0))
738 down_write(&scrub->os_rwsem);
739 sf->sf_items_checked += scrub->os_new_checked;
740 scrub->os_new_checked = 0;
741 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
742 sf->sf_time_last_checkpoint = cfs_time_current_sec();
743 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
744 scrub->os_time_last_checkpoint);
745 rc = osd_scrub_file_store(scrub);
746 up_write(&scrub->os_rwsem);
751 static int osd_scrub_post(struct osd_scrub *scrub, int result)
753 struct scrub_file *sf = &scrub->os_file;
757 CDEBUG(D_LFSCK, "%.16s: OI scrub post, result = %d\n",
758 osd_scrub2name(scrub), result);
760 down_write(&scrub->os_rwsem);
761 spin_lock(&scrub->os_lock);
762 thread_set_flags(&scrub->os_thread, SVC_STOPPING);
763 spin_unlock(&scrub->os_lock);
764 if (scrub->os_new_checked > 0) {
765 sf->sf_items_checked += scrub->os_new_checked;
766 scrub->os_new_checked = 0;
767 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
769 sf->sf_time_last_checkpoint = cfs_time_current_sec();
771 struct osd_device *dev =
772 container_of0(scrub, struct osd_device, od_scrub);
774 dev->od_igif_inoi = 1;
775 dev->od_check_ff = 0;
776 sf->sf_status = SS_COMPLETED;
777 if (!(sf->sf_param & SP_DRYRUN)) {
778 memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
779 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
780 SF_UPGRADE | SF_AUTO);
782 sf->sf_time_last_complete = sf->sf_time_last_checkpoint;
783 sf->sf_success_count++;
784 } else if (result == 0) {
785 if (scrub->os_paused)
786 sf->sf_status = SS_PAUSED;
788 sf->sf_status = SS_STOPPED;
790 sf->sf_status = SS_FAILED;
792 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
793 scrub->os_time_last_checkpoint);
794 rc = osd_scrub_file_store(scrub);
795 up_write(&scrub->os_rwsem);
797 RETURN(rc < 0 ? rc : result);
800 /* iteration engine */
802 struct osd_iit_param {
803 struct super_block *sb;
804 struct buffer_head *bitmap;
810 typedef int (*osd_iit_next_policy)(struct osd_thread_info *info,
811 struct osd_device *dev,
812 struct osd_iit_param *param,
813 struct osd_idmap_cache **oic,
816 typedef int (*osd_iit_exec_policy)(struct osd_thread_info *info,
817 struct osd_device *dev,
818 struct osd_iit_param *param,
819 struct osd_idmap_cache *oic,
820 bool *noslot, int rc);
822 static int osd_iit_next(struct osd_iit_param *param, __u32 *pos)
824 param->offset = ldiskfs_find_next_bit(param->bitmap->b_data,
825 LDISKFS_INODES_PER_GROUP(param->sb), param->offset);
826 if (param->offset >= LDISKFS_INODES_PER_GROUP(param->sb)) {
827 *pos = 1 + (param->bg+1) * LDISKFS_INODES_PER_GROUP(param->sb);
828 return SCRUB_NEXT_BREAK;
830 *pos = param->gbase + param->offset;
836 * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST
837 * \retval 0: FID-on-MDT
839 static int osd_scrub_check_local_fldb(struct osd_thread_info *info,
840 struct osd_device *dev,
843 /* XXX: The initial OI scrub will scan the top level /O to generate
844 * a small local FLDB according to the <seq>. If the given FID
845 * is in the local FLDB, then it is FID-on-OST; otherwise it's
846 * quite possible for FID-on-MDT. */
848 return SCRUB_NEXT_OSTOBJ_OLD;
853 static int osd_scrub_get_fid(struct osd_thread_info *info,
854 struct osd_device *dev, struct inode *inode,
855 struct lu_fid *fid, bool scrub)
857 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
859 bool has_lma = false;
861 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
864 if (lma->lma_compat & LMAC_NOT_IN_OI ||
865 lma->lma_incompat & LMAI_AGENT)
866 return SCRUB_NEXT_CONTINUE;
868 *fid = lma->lma_self_fid;
872 if (lma->lma_compat & LMAC_FID_ON_OST)
873 return SCRUB_NEXT_OSTOBJ;
875 if (fid_is_idif(fid))
876 return SCRUB_NEXT_OSTOBJ_OLD;
878 /* For local object. */
879 if (fid_is_internal(fid))
882 /* For external visible MDT-object with non-normal FID. */
883 if (fid_is_namespace_visible(fid) && !fid_is_norm(fid))
886 /* For the object with normal FID, it may be MDT-object,
887 * or may be 2.4 OST-object, need further distinguish.
888 * Fall through to next section. */
891 if (rc == -ENODATA || rc == 0) {
892 rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid);
895 /* It is old 2.x (x <= 3) or 1.8 OST-object. */
896 rc = SCRUB_NEXT_OSTOBJ_OLD;
902 /* It is FID-on-OST, but we do not know how
903 * to generate its FID, ignore it directly. */
904 rc = SCRUB_NEXT_CONTINUE;
906 /* It is 2.4 OST-object. */
907 rc = SCRUB_NEXT_OSTOBJ_OLD;
915 if (dev->od_scrub.os_convert_igif) {
916 lu_igif_build(fid, inode->i_ino,
917 inode->i_generation);
919 rc = SCRUB_NEXT_NOLMA;
923 /* It may be FID-on-OST, or may be FID for
924 * non-MDT0, anyway, we do not know how to
925 * generate its FID, ignore it directly. */
926 rc = SCRUB_NEXT_CONTINUE;
931 /* For OI scrub case only: the object has LMA but has no ff
932 * (or ff crashed). It may be MDT-object, may be OST-object
933 * with crashed ff. The last check is local FLDB. */
934 rc = osd_scrub_check_local_fldb(info, dev, fid);
940 static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
941 struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
942 struct super_block *sb, bool scrub)
948 /* Not handle the backend root object and agent parent object.
949 * They are neither visible to namespace nor have OI mappings. */
950 if (unlikely(pos == osd_sb(dev)->s_root->d_inode->i_ino ||
951 pos == osd_remote_parent_ino(dev)))
952 RETURN(SCRUB_NEXT_CONTINUE);
954 osd_id_gen(lid, pos, OSD_OII_NOGEN);
955 inode = osd_iget(info, dev, lid);
958 /* The inode may be removed after bitmap searching, or the
959 * file is new created without inode initialized yet. */
960 if (rc == -ENOENT || rc == -ESTALE)
961 RETURN(SCRUB_NEXT_CONTINUE);
963 CDEBUG(D_LFSCK, "%.16s: fail to read inode, ino# = %u: "
964 "rc = %d\n", LDISKFS_SB(sb)->s_es->s_volume_name,
969 /* It is an EA inode, no OI mapping for it, skip it. */
970 if (osd_is_ea_inode(inode))
971 GOTO(put, rc = SCRUB_NEXT_CONTINUE);
974 ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
975 /* Only skip it for the first OI scrub accessing. */
976 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
977 GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
980 rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
989 static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
990 struct osd_iit_param *param,
991 struct osd_idmap_cache **oic, const bool noslot)
993 struct osd_scrub *scrub = &dev->od_scrub;
994 struct ptlrpc_thread *thread = &scrub->os_thread;
996 struct osd_inode_id *lid;
999 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
1000 struct l_wait_info lwi;
1002 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
1003 if (likely(lwi.lwi_timeout > 0))
1004 l_wait_event(thread->t_ctl_waitq,
1005 !list_empty(&scrub->os_inconsistent_items) ||
1006 !thread_is_running(thread),
1010 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
1011 spin_lock(&scrub->os_lock);
1012 thread_set_flags(thread, SVC_STOPPING);
1013 spin_unlock(&scrub->os_lock);
1014 return SCRUB_NEXT_CRASH;
1017 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
1018 return SCRUB_NEXT_FATAL;
1020 if (unlikely(!thread_is_running(thread)))
1021 return SCRUB_NEXT_EXIT;
1023 if (!list_empty(&scrub->os_inconsistent_items)) {
1024 spin_lock(&scrub->os_lock);
1025 if (likely(!list_empty(&scrub->os_inconsistent_items))) {
1026 struct osd_inconsistent_item *oii;
1028 oii = list_entry(scrub->os_inconsistent_items.next,
1029 struct osd_inconsistent_item, oii_list);
1030 list_del_init(&oii->oii_list);
1031 spin_unlock(&scrub->os_lock);
1033 *oic = &oii->oii_cache;
1034 scrub->os_in_prior = 1;
1038 spin_unlock(&scrub->os_lock);
1042 return SCRUB_NEXT_WAIT;
1044 rc = osd_iit_next(param, &scrub->os_pos_current);
1048 *oic = &scrub->os_oic;
1049 fid = &(*oic)->oic_fid;
1050 lid = &(*oic)->oic_lid;
1051 rc = osd_iit_iget(info, dev, fid, lid,
1052 scrub->os_pos_current, param->sb, true);
1056 static int osd_preload_next(struct osd_thread_info *info,
1057 struct osd_device *dev, struct osd_iit_param *param,
1058 struct osd_idmap_cache **oic, const bool noslot)
1060 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1061 struct osd_scrub *scrub;
1062 struct ptlrpc_thread *thread;
1065 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1069 scrub = &dev->od_scrub;
1070 thread = &scrub->os_thread;
1071 if (thread_is_running(thread) &&
1072 ooc->ooc_pos_preload >= scrub->os_pos_current)
1073 return SCRUB_NEXT_EXIT;
1075 rc = osd_iit_iget(info, dev,
1076 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1077 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1078 ooc->ooc_pos_preload, param->sb, false);
1079 /* If succeed, it needs to move forward; otherwise up layer LFSCK may
1080 * ignore the failure, so it still need to skip the inode next time. */
1081 ooc->ooc_pos_preload = param->gbase + ++(param->offset);
1086 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1088 spin_lock(&scrub->os_lock);
1089 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1090 !list_empty(&scrub->os_inconsistent_items) ||
1091 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1092 scrub->os_waiting = 0;
1094 scrub->os_waiting = 1;
1095 spin_unlock(&scrub->os_lock);
1097 return !scrub->os_waiting;
1100 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1101 struct osd_iit_param *param,
1102 struct osd_idmap_cache *oic, bool *noslot, int rc)
1104 struct l_wait_info lwi = { 0 };
1105 struct osd_scrub *scrub = &dev->od_scrub;
1106 struct scrub_file *sf = &scrub->os_file;
1107 struct ptlrpc_thread *thread = &scrub->os_thread;
1108 struct osd_otable_it *it = dev->od_otable_it;
1109 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1112 case SCRUB_NEXT_CONTINUE:
1114 case SCRUB_NEXT_WAIT:
1116 case SCRUB_NEXT_NOSCRUB:
1117 down_write(&scrub->os_rwsem);
1118 scrub->os_new_checked++;
1119 sf->sf_items_noscrub++;
1120 up_write(&scrub->os_rwsem);
1124 rc = osd_scrub_check_update(info, dev, oic, rc);
1126 scrub->os_in_prior = 0;
1130 rc = osd_scrub_checkpoint(scrub);
1132 CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: "
1133 "rc = %d\n", osd_scrub2name(scrub),
1134 scrub->os_pos_current, rc);
1135 /* Continue, as long as the scrub itself can go ahead. */
1138 if (scrub->os_in_prior) {
1139 scrub->os_in_prior = 0;
1144 scrub->os_pos_current = param->gbase + ++(param->offset);
1147 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1148 ooc->ooc_pos_preload < scrub->os_pos_current) {
1149 spin_lock(&scrub->os_lock);
1150 it->ooi_waiting = 0;
1151 wake_up_all(&thread->t_ctl_waitq);
1152 spin_unlock(&scrub->os_lock);
1155 if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
1158 if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) {
1164 l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
1167 if (ooc != NULL && osd_scrub_has_window(scrub, ooc))
1174 static int osd_preload_exec(struct osd_thread_info *info,
1175 struct osd_device *dev, struct osd_iit_param *param,
1176 struct osd_idmap_cache *oic, bool *noslot, int rc)
1178 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1181 ooc->ooc_cached_items++;
1182 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1183 ~OSD_OTABLE_IT_CACHE_MASK;
1185 return rc > 0 ? 0 : rc;
1188 #define SCRUB_IT_ALL 1
1189 #define SCRUB_IT_CRASH 2
1191 static void osd_scrub_join(struct osd_device *dev, __u32 flags,
1194 struct osd_scrub *scrub = &dev->od_scrub;
1195 struct ptlrpc_thread *thread = &scrub->os_thread;
1196 struct scrub_file *sf = &scrub->os_file;
1200 LASSERT(!(flags & SS_AUTO_PARTIAL));
1202 down_write(&scrub->os_rwsem);
1203 scrub->os_in_join = 1;
1204 if (flags & SS_SET_FAILOUT)
1205 sf->sf_param |= SP_FAILOUT;
1206 else if (flags & SS_CLEAR_FAILOUT)
1207 sf->sf_param &= ~SP_FAILOUT;
1209 if (flags & SS_SET_DRYRUN)
1210 sf->sf_param |= SP_DRYRUN;
1211 else if (flags & SS_CLEAR_DRYRUN)
1212 sf->sf_param &= ~SP_DRYRUN;
1214 if (flags & SS_RESET) {
1215 osd_scrub_file_reset(scrub,
1216 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1217 inconsistent ? SF_INCONSISTENT : 0);
1218 sf->sf_status = SS_SCANNING;
1221 if (flags & SS_AUTO_FULL) {
1222 sf->sf_flags |= SF_AUTO;
1223 scrub->os_full_speed = 1;
1226 if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
1227 scrub->os_full_speed = 1;
1229 scrub->os_full_speed = 0;
1231 scrub->os_new_checked = 0;
1232 if (sf->sf_pos_last_checkpoint != 0)
1233 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
1235 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
1237 scrub->os_pos_current = sf->sf_pos_latest_start;
1238 sf->sf_time_latest_start = cfs_time_current_sec();
1239 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
1240 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
1241 rc = osd_scrub_file_store(scrub);
1243 CDEBUG(D_LFSCK, "%.16s: fail to store scrub file when join "
1244 "the OI scrub: rc = %d\n", osd_scrub2name(scrub), rc);
1246 spin_lock(&scrub->os_lock);
1247 scrub->os_waiting = 0;
1248 scrub->os_paused = 0;
1249 scrub->os_partial_scan = 0;
1250 scrub->os_in_join = 0;
1251 scrub->os_full_scrub = 0;
1252 spin_unlock(&scrub->os_lock);
1253 wake_up_all(&thread->t_ctl_waitq);
1254 up_write(&scrub->os_rwsem);
1259 static int osd_inode_iteration(struct osd_thread_info *info,
1260 struct osd_device *dev, __u32 max, bool preload)
1262 struct osd_scrub *scrub = &dev->od_scrub;
1263 struct ptlrpc_thread *thread = &scrub->os_thread;
1264 struct scrub_file *sf = &scrub->os_file;
1265 osd_iit_next_policy next;
1266 osd_iit_exec_policy exec;
1269 struct osd_iit_param param = { NULL };
1270 struct l_wait_info lwi = { 0 };
1276 param.sb = osd_sb(dev);
1280 while (scrub->os_partial_scan && !scrub->os_in_join) {
1281 struct osd_idmap_cache *oic = NULL;
1283 rc = osd_scrub_next(info, dev, ¶m, &oic, noslot);
1285 case SCRUB_NEXT_EXIT:
1287 case SCRUB_NEXT_CRASH:
1288 RETURN(SCRUB_IT_CRASH);
1289 case SCRUB_NEXT_FATAL:
1291 case SCRUB_NEXT_WAIT: {
1292 struct kstatfs *ksfs = &info->oti_ksfs;
1295 if (dev->od_full_scrub_ratio == OFSR_NEVER ||
1296 unlikely(sf->sf_items_updated_prior == 0))
1299 if (dev->od_full_scrub_ratio == OFSR_DIRECTLY ||
1300 scrub->os_full_scrub) {
1301 osd_scrub_join(dev, SS_AUTO_FULL | SS_RESET,
1306 rc = param.sb->s_op->statfs(param.sb->s_root, ksfs);
1308 __u64 used = ksfs->f_files - ksfs->f_ffree;
1310 do_div(used, sf->sf_items_updated_prior);
1311 /* If we hit too much inconsistent OI
1312 * mappings during the partial scan,
1313 * then scan the device completely. */
1314 if (used < dev->od_full_scrub_ratio) {
1316 SS_AUTO_FULL | SS_RESET, true);
1322 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) &&
1326 saved_flags = sf->sf_flags;
1327 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
1328 SF_UPGRADE | SF_AUTO);
1329 sf->sf_status = SS_COMPLETED;
1330 l_wait_event(thread->t_ctl_waitq,
1331 !thread_is_running(thread) ||
1332 !scrub->os_partial_scan ||
1333 scrub->os_in_join ||
1334 !list_empty(&scrub->os_inconsistent_items),
1336 sf->sf_flags = saved_flags;
1337 sf->sf_status = SS_SCANNING;
1339 if (unlikely(!thread_is_running(thread)))
1342 if (!scrub->os_partial_scan || scrub->os_in_join)
1348 LASSERTF(rc == 0, "rc = %d\n", rc);
1350 osd_scrub_exec(info, dev, ¶m, oic, &noslot, rc);
1357 l_wait_event(thread->t_ctl_waitq,
1358 !thread_is_running(thread) || !scrub->os_in_join,
1361 if (unlikely(!thread_is_running(thread)))
1367 next = osd_scrub_next;
1368 exec = osd_scrub_exec;
1369 pos = &scrub->os_pos_current;
1370 count = &scrub->os_new_checked;
1372 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1374 next = osd_preload_next;
1375 exec = osd_preload_exec;
1376 pos = &ooc->ooc_pos_preload;
1377 count = &ooc->ooc_cached_items;
1379 limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
1381 while (*pos <= limit && *count < max) {
1382 struct osd_idmap_cache *oic = NULL;
1383 struct ldiskfs_group_desc *desc;
1385 param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
1386 desc = ldiskfs_get_group_desc(param.sb, param.bg, NULL);
1390 ldiskfs_lock_group(param.sb, param.bg);
1391 if (desc->bg_flags & cpu_to_le16(LDISKFS_BG_INODE_UNINIT)) {
1392 ldiskfs_unlock_group(param.sb, param.bg);
1393 *pos = 1 + (param.bg + 1) *
1394 LDISKFS_INODES_PER_GROUP(param.sb);
1397 ldiskfs_unlock_group(param.sb, param.bg);
1399 param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
1400 param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1401 param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
1402 if (param.bitmap == NULL) {
1403 CDEBUG(D_LFSCK, "%.16s: fail to read bitmap for %u, "
1404 "scrub will stop, urgent mode\n",
1405 osd_scrub2name(scrub), (__u32)param.bg);
1409 while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
1412 ldiskfs_itable_unused_count(param.sb, desc) >
1413 LDISKFS_INODES_PER_GROUP(param.sb))
1416 rc = next(info, dev, ¶m, &oic, noslot);
1418 case SCRUB_NEXT_BREAK:
1420 case SCRUB_NEXT_EXIT:
1421 brelse(param.bitmap);
1423 case SCRUB_NEXT_CRASH:
1424 brelse(param.bitmap);
1425 RETURN(SCRUB_IT_CRASH);
1426 case SCRUB_NEXT_FATAL:
1427 brelse(param.bitmap);
1431 rc = exec(info, dev, ¶m, oic, &noslot, rc);
1433 brelse(param.bitmap);
1439 brelse(param.bitmap);
1443 RETURN(SCRUB_IT_ALL);
1447 static int osd_otable_it_preload(const struct lu_env *env,
1448 struct osd_otable_it *it)
1450 struct osd_device *dev = it->ooi_dev;
1451 struct osd_scrub *scrub = &dev->od_scrub;
1452 struct osd_otable_cache *ooc = &it->ooi_cache;
1456 rc = osd_inode_iteration(osd_oti_get(env), dev,
1457 OSD_OTABLE_IT_CACHE_SIZE, true);
1458 if (rc == SCRUB_IT_ALL)
1459 it->ooi_all_cached = 1;
1461 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1462 spin_lock(&scrub->os_lock);
1463 scrub->os_waiting = 0;
1464 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1465 spin_unlock(&scrub->os_lock);
1468 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1471 static int osd_scrub_main(void *args)
1474 struct osd_device *dev = (struct osd_device *)args;
1475 struct osd_scrub *scrub = &dev->od_scrub;
1476 struct ptlrpc_thread *thread = &scrub->os_thread;
1480 rc = lu_env_init(&env, LCT_LOCAL);
1482 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n",
1483 osd_scrub2name(scrub), rc);
1487 rc = osd_scrub_prep(dev);
1489 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n",
1490 osd_scrub2name(scrub), rc);
1494 if (!scrub->os_full_speed && !scrub->os_partial_scan) {
1495 struct l_wait_info lwi = { 0 };
1496 struct osd_otable_it *it = dev->od_otable_it;
1497 struct osd_otable_cache *ooc = &it->ooi_cache;
1499 l_wait_event(thread->t_ctl_waitq,
1500 it->ooi_user_ready || !thread_is_running(thread),
1502 if (unlikely(!thread_is_running(thread)))
1505 scrub->os_pos_current = ooc->ooc_pos_preload;
1508 CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n",
1509 osd_scrub2name(scrub), scrub->os_start_flags,
1510 scrub->os_pos_current);
1512 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1513 if (unlikely(rc == SCRUB_IT_CRASH))
1514 GOTO(out, rc = -EINVAL);
1518 rc = osd_scrub_post(scrub, rc);
1519 CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n",
1520 osd_scrub2name(scrub), scrub->os_pos_current, rc);
1523 while (!list_empty(&scrub->os_inconsistent_items)) {
1524 struct osd_inconsistent_item *oii;
1526 oii = list_entry(scrub->os_inconsistent_items.next,
1527 struct osd_inconsistent_item, oii_list);
1528 list_del_init(&oii->oii_list);
1534 spin_lock(&scrub->os_lock);
1535 thread_set_flags(thread, SVC_STOPPED);
1536 wake_up_all(&thread->t_ctl_waitq);
1537 spin_unlock(&scrub->os_lock);
1541 /* initial OI scrub */
1543 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1544 struct dentry *, filldir_t filldir);
1546 #ifdef HAVE_FILLDIR_USE_CTX
1547 static int osd_ios_varfid_fill(struct dir_context *buf, const char *name,
1548 int namelen, loff_t offset, __u64 ino,
1550 static int osd_ios_lf_fill(struct dir_context *buf, const char *name,
1551 int namelen, loff_t offset, __u64 ino,
1553 static int osd_ios_dl_fill(struct dir_context *buf, const char *name,
1554 int namelen, loff_t offset, __u64 ino,
1556 static int osd_ios_uld_fill(struct dir_context *buf, const char *name,
1557 int namelen, loff_t offset, __u64 ino,
1560 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1561 loff_t offset, __u64 ino, unsigned d_type);
1562 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1563 loff_t offset, __u64 ino, unsigned d_type);
1564 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1565 loff_t offset, __u64 ino, unsigned d_type);
1566 static int osd_ios_uld_fill(void *buf, const char *name, int namelen,
1567 loff_t offset, __u64 ino, unsigned d_type);
1571 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1572 struct dentry *dentry, filldir_t filldir);
1574 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1575 struct dentry *dentry, filldir_t filldir);
1578 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1579 struct dentry *dentry, filldir_t filldir);
1582 OLF_SCAN_SUBITEMS = 0x0001,
1583 OLF_HIDE_FID = 0x0002,
1584 OLF_SHOW_NAME = 0x0004,
1586 OLF_IDX_IN_FID = 0x0010,
1591 struct lu_fid olm_fid;
1594 scandir_t olm_scandir;
1595 filldir_t olm_filldir;
1598 /* Add the new introduced local files in the list in the future. */
1599 static const struct osd_lf_map osd_lf_maps[] = {
1601 { CATLIST, { FID_SEQ_LOCAL_FILE, LLOG_CATALOGS_OID, 0 }, OLF_SHOW_NAME,
1602 sizeof(CATLIST) - 1, NULL, NULL },
1605 { MOUNT_CONFIGS_DIR, { FID_SEQ_LOCAL_FILE, MGS_CONFIGS_OID, 0 },
1606 OLF_SCAN_SUBITEMS, sizeof(MOUNT_CONFIGS_DIR) - 1,
1607 osd_ios_general_scan, osd_ios_varfid_fill },
1609 /* NIDTBL_VERSIONS */
1610 { MGS_NIDTBL_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1611 sizeof(MGS_NIDTBL_DIR) - 1, osd_ios_general_scan,
1612 osd_ios_varfid_fill },
1615 { "PENDING", { 0, 0, 0 }, 0, sizeof("PENDING") - 1, NULL, NULL },
1618 { "ROOT", { FID_SEQ_ROOT, FID_OID_ROOT, 0 },
1619 OLF_SCAN_SUBITEMS | OLF_HIDE_FID, sizeof("ROOT") - 1,
1620 osd_ios_ROOT_scan, NULL },
1622 /* changelog_catalog */
1623 { CHANGELOG_CATALOG, { 0, 0, 0 }, 0, sizeof(CHANGELOG_CATALOG) - 1,
1626 /* changelog_users */
1627 { CHANGELOG_USERS, { 0, 0, 0 }, 0, sizeof(CHANGELOG_USERS) - 1,
1631 { "fld", { FID_SEQ_LOCAL_FILE, FLD_INDEX_OID, 0 }, OLF_SHOW_NAME,
1632 sizeof("fld") - 1, NULL, NULL },
1635 { LAST_RCVD, { FID_SEQ_LOCAL_FILE, LAST_RECV_OID, 0 }, OLF_SHOW_NAME,
1636 sizeof(LAST_RCVD) - 1, NULL, NULL },
1639 { REPLY_DATA, { FID_SEQ_LOCAL_FILE, REPLY_DATA_OID, 0 }, OLF_SHOW_NAME,
1640 sizeof(REPLY_DATA) - 1, NULL, NULL },
1643 { LOV_OBJID, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OID, 0 }, OLF_SHOW_NAME,
1644 sizeof(LOV_OBJID) - 1, NULL, NULL },
1647 { LOV_OBJSEQ, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OSEQ, 0 },
1648 OLF_SHOW_NAME, sizeof(LOV_OBJSEQ) - 1, NULL, NULL },
1651 { QMT_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, sizeof(QMT_DIR) - 1,
1652 osd_ios_general_scan, osd_ios_varfid_fill },
1655 { QSD_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, sizeof(QSD_DIR) - 1,
1656 osd_ios_general_scan, osd_ios_varfid_fill },
1659 { "seq_ctl", { FID_SEQ_LOCAL_FILE, FID_SEQ_CTL_OID, 0 },
1660 OLF_SHOW_NAME, sizeof("seq_ctl") - 1, NULL, NULL },
1663 { "seq_srv", { FID_SEQ_LOCAL_FILE, FID_SEQ_SRV_OID, 0 },
1664 OLF_SHOW_NAME, sizeof("seq_srv") - 1, NULL, NULL },
1667 { HEALTH_CHECK, { FID_SEQ_LOCAL_FILE, OFD_HEALTH_CHECK_OID, 0 },
1668 OLF_SHOW_NAME, sizeof(HEALTH_CHECK) - 1, NULL, NULL },
1671 { LFSCK_DIR, { 0, 0, 0 }, 0, sizeof(LFSCK_DIR) - 1,
1672 osd_ios_general_scan, osd_ios_varfid_fill },
1674 /* lfsck_bookmark */
1675 { LFSCK_BOOKMARK, { 0, 0, 0 }, 0, sizeof(LFSCK_BOOKMARK) - 1,
1679 { LFSCK_LAYOUT, { 0, 0, 0 }, 0, sizeof(LFSCK_LAYOUT) - 1,
1682 /* lfsck_namespace */
1683 { LFSCK_NAMESPACE, { 0, 0, 0 }, 0, sizeof(LFSCK_NAMESPACE) - 1,
1686 /* OBJECTS, upgrade from old device */
1687 { OBJECTS, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, sizeof(OBJECTS) - 1,
1688 osd_ios_OBJECTS_scan, NULL },
1690 /* lquota_v2.user, upgrade from old device */
1691 { "lquota_v2.user", { 0, 0, 0 }, 0, sizeof("lquota_v2.user") - 1,
1694 /* lquota_v2.group, upgrade from old device */
1695 { "lquota_v2.group", { 0, 0, 0 }, 0, sizeof("lquota_v2.group") - 1,
1698 /* LAST_GROUP, upgrade from old device */
1699 { "LAST_GROUP", { FID_SEQ_LOCAL_FILE, OFD_LAST_GROUP_OID, 0 },
1700 OLF_SHOW_NAME, sizeof("LAST_GROUP") - 1, NULL, NULL },
1702 /* committed batchid for cross-MDT operation */
1703 { "BATCHID", { FID_SEQ_LOCAL_FILE, BATCHID_COMMITTED_OID, 0 },
1704 OLF_SHOW_NAME, sizeof("BATCHID") - 1, NULL, NULL },
1706 /* OSP update logs update_log{_dir} use f_seq = FID_SEQ_UPDATE_LOG{_DIR}
1707 * and f_oid = index for their log files. See lu_update_log{_dir}_fid()
1708 * for more details. */
1711 { "update_log", { FID_SEQ_UPDATE_LOG, 0, 0 },
1712 OLF_SHOW_NAME | OLF_IDX_IN_FID, sizeof("update_log") - 1,
1715 /* update_log_dir */
1716 { "update_log_dir", { FID_SEQ_UPDATE_LOG_DIR, 0, 0 },
1717 OLF_SHOW_NAME | OLF_SCAN_SUBITEMS | OLF_IDX_IN_FID,
1718 sizeof("update_log_dir") - 1,
1719 osd_ios_general_scan, osd_ios_uld_fill },
1722 { "lost+found", { FID_SEQ_LOCAL_FILE, OSD_LPF_OID, 0 },
1723 OLF_SCAN_SUBITEMS, sizeof("lost+found") - 1,
1724 osd_ios_general_scan, osd_ios_lf_fill },
1726 { NULL, { 0, 0, 0 }, 0, 0, NULL, NULL }
1729 /* Add the new introduced files under .lustre/ in the list in the future. */
1730 static const struct osd_lf_map osd_dl_maps[] = {
1732 { "fid", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_OBF, 0 }, 0,
1733 sizeof("fid") - 1, NULL, NULL },
1735 /* .lustre/lost+found */
1736 { "lost+found", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_LPF, 0 }, 0,
1737 sizeof("lost+found") - 1, NULL, NULL },
1739 { NULL, { 0, 0, 0 }, 0, 0, NULL, NULL }
1742 struct osd_ios_item {
1743 struct list_head oii_list;
1744 struct dentry *oii_dentry;
1745 scandir_t oii_scandir;
1746 filldir_t oii_filldir;
1749 struct osd_ios_filldir_buf {
1750 #ifdef HAVE_DIR_CONTEXT
1751 /* please keep it as first member */
1752 struct dir_context ctx;
1754 struct osd_thread_info *oifb_info;
1755 struct osd_device *oifb_dev;
1756 struct dentry *oifb_dentry;
1759 static inline struct dentry *
1760 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1762 struct dentry *dentry;
1764 dentry = ll_lookup_one_len(name, parent, namelen);
1765 if (IS_ERR(dentry)) {
1766 int rc = PTR_ERR(dentry);
1769 CERROR("Fail to find %.*s in %.*s (%lu/%u): rc = %d\n",
1770 namelen, name, parent->d_name.len,
1771 parent->d_name.name, parent->d_inode->i_ino,
1772 parent->d_inode->i_generation, rc);
1777 if (dentry->d_inode == NULL) {
1779 return ERR_PTR(-ENOENT);
1786 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1787 scandir_t scandir, filldir_t filldir)
1789 struct osd_ios_item *item;
1792 OBD_ALLOC_PTR(item);
1796 INIT_LIST_HEAD(&item->oii_list);
1797 item->oii_dentry = dget(dentry);
1798 item->oii_scandir = scandir;
1799 item->oii_filldir = filldir;
1800 list_add_tail(&item->oii_list, &dev->od_ios_list);
1806 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
1808 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
1809 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
1810 * reference the inode, or fixed if it is missing or references another inode.
1813 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
1814 struct inode *inode, const struct lu_fid *fid, int flags)
1816 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1817 struct osd_inode_id *id = &info->oti_id;
1818 struct osd_inode_id *id2 = &info->oti_id2;
1819 struct osd_scrub *scrub = &dev->od_scrub;
1820 struct scrub_file *sf = &scrub->os_file;
1825 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
1826 if (rc != 0 && rc != -ENODATA) {
1827 CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
1828 "rc = %d\n", osd_name(dev), rc);
1833 osd_id_gen(id, inode->i_ino, inode->i_generation);
1834 if (rc == -ENODATA) {
1835 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID) {
1836 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
1839 if (flags & OLF_IDX_IN_FID) {
1840 LASSERT(dev->od_index >= 0);
1842 tfid.f_oid = dev->od_index;
1845 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
1847 CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
1848 "scrub: rc = %d\n", osd_name(dev), rc);
1853 if (lma->lma_compat & LMAC_NOT_IN_OI)
1856 tfid = lma->lma_self_fid;
1859 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
1864 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1865 DTO_INDEX_INSERT, true, 0);
1872 if (osd_id_eq_strict(id, id2))
1875 if (!(sf->sf_flags & SF_INCONSISTENT)) {
1876 osd_scrub_file_reset(scrub,
1877 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1879 rc = osd_scrub_file_store(scrub);
1884 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1885 DTO_INDEX_UPDATE, true, 0);
1893 * It scans the /lost+found, and for the OST-object (with filter_fid
1894 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
1896 #ifdef HAVE_FILLDIR_USE_CTX
1897 static int osd_ios_lf_fill(struct dir_context *buf, const char *name,
1900 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1902 loff_t offset, __u64 ino, unsigned d_type)
1904 struct osd_ios_filldir_buf *fill_buf =
1905 (struct osd_ios_filldir_buf *)buf;
1906 struct osd_thread_info *info = fill_buf->oifb_info;
1907 struct osd_device *dev = fill_buf->oifb_dev;
1908 struct lu_fid *fid = &info->oti_fid;
1909 struct osd_scrub *scrub = &dev->od_scrub;
1910 struct dentry *parent = fill_buf->oifb_dentry;
1911 struct dentry *child;
1912 struct inode *dir = parent->d_inode;
1913 struct inode *inode;
1917 /* skip any '.' started names */
1921 scrub->os_lf_scanned++;
1922 child = osd_ios_lookup_one_len(name, parent, namelen);
1923 if (IS_ERR(child)) {
1924 CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
1925 osd_name(dev), namelen, name, (int)PTR_ERR(child));
1929 inode = child->d_inode;
1930 if (S_ISDIR(inode->i_mode)) {
1931 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1934 CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
1935 "rc = %d\n", osd_name(dev), namelen, name, rc);
1939 if (!S_ISREG(inode->i_mode))
1942 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
1943 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
1944 rc = osd_obj_map_recover(info, dev, dir, child, fid);
1946 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
1947 "/lost+found.\n", namelen, name, PFID(fid));
1948 scrub->os_lf_repaired++;
1950 CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
1952 osd_name(dev), namelen, name, PFID(fid), rc);
1956 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
1957 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
1958 * can process them in furtuer. */
1964 scrub->os_lf_failed++;
1966 /* skip the failure to make the scanning to continue. */
1970 #ifdef HAVE_FILLDIR_USE_CTX
1971 static int osd_ios_varfid_fill(struct dir_context *buf, const char *name,
1974 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1976 loff_t offset, __u64 ino, unsigned d_type)
1978 struct osd_ios_filldir_buf *fill_buf =
1979 (struct osd_ios_filldir_buf *)buf;
1980 struct osd_device *dev = fill_buf->oifb_dev;
1981 struct dentry *child;
1985 /* skip any '.' started names */
1989 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1991 RETURN(PTR_ERR(child));
1993 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1995 if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
1996 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1997 osd_ios_varfid_fill);
2003 #ifdef HAVE_FILLDIR_USE_CTX
2004 static int osd_ios_dl_fill(struct dir_context *buf, const char *name,
2007 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
2009 loff_t offset, __u64 ino, unsigned d_type)
2011 struct osd_ios_filldir_buf *fill_buf =
2012 (struct osd_ios_filldir_buf *)buf;
2013 struct osd_device *dev = fill_buf->oifb_dev;
2014 const struct osd_lf_map *map;
2015 struct dentry *child;
2019 /* skip any '.' started names */
2023 for (map = osd_dl_maps; map->olm_name != NULL; map++) {
2024 if (map->olm_namelen != namelen)
2027 if (strncmp(map->olm_name, name, namelen) == 0)
2031 if (map->olm_name == NULL)
2034 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2036 RETURN(PTR_ERR(child));
2038 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2039 &map->olm_fid, map->olm_flags);
2045 #ifdef HAVE_FILLDIR_USE_CTX
2046 static int osd_ios_uld_fill(struct dir_context *buf, const char *name,
2049 static int osd_ios_uld_fill(void *buf, const char *name, int namelen,
2051 loff_t offset, __u64 ino, unsigned d_type)
2053 struct osd_ios_filldir_buf *fill_buf =
2054 (struct osd_ios_filldir_buf *)buf;
2055 struct dentry *child;
2060 /* skip any non-DFID format name */
2064 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2066 RETURN(PTR_ERR(child));
2068 /* skip the start '[' */
2069 sscanf(&name[1], SFID, RFID(&tfid));
2070 if (fid_is_sane(&tfid))
2071 rc = osd_ios_scan_one(fill_buf->oifb_info, fill_buf->oifb_dev,
2072 child->d_inode, &tfid, 0);
2080 #ifdef HAVE_FILLDIR_USE_CTX
2081 static int osd_ios_root_fill(struct dir_context *buf, const char *name,
2084 static int osd_ios_root_fill(void *buf, const char *name, int namelen,
2086 loff_t offset, __u64 ino, unsigned d_type)
2088 struct osd_ios_filldir_buf *fill_buf =
2089 (struct osd_ios_filldir_buf *)buf;
2090 struct osd_device *dev = fill_buf->oifb_dev;
2091 const struct osd_lf_map *map;
2092 struct dentry *child;
2096 /* skip any '.' started names */
2100 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
2101 if (map->olm_namelen != namelen)
2104 if (strncmp(map->olm_name, name, namelen) == 0)
2108 if (map->olm_name == NULL)
2111 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2113 RETURN(PTR_ERR(child));
2115 if (!(map->olm_flags & OLF_NO_OI))
2116 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2117 &map->olm_fid, map->olm_flags);
2118 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
2119 rc = osd_ios_new_item(dev, child, map->olm_scandir,
2127 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
2128 struct dentry *dentry, filldir_t filldir)
2130 struct osd_ios_filldir_buf buf = {
2131 #ifdef HAVE_DIR_CONTEXT
2132 .ctx.actor = filldir,
2136 .oifb_dentry = dentry };
2137 struct file *filp = &info->oti_file;
2138 struct inode *inode = dentry->d_inode;
2139 const struct file_operations *fops = inode->i_fop;
2143 LASSERT(filldir != NULL);
2146 filp->f_path.dentry = dentry;
2147 filp->f_mode = FMODE_64BITHASH;
2148 filp->f_mapping = inode->i_mapping;
2150 filp->private_data = NULL;
2151 set_file_inode(filp, inode);
2153 #ifdef HAVE_DIR_CONTEXT
2154 buf.ctx.pos = filp->f_pos;
2155 rc = fops->iterate(filp, &buf.ctx);
2156 filp->f_pos = buf.ctx.pos;
2158 rc = fops->readdir(filp, &buf, filldir);
2160 fops->release(inode, filp);
2166 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
2167 struct dentry *dentry, filldir_t filldir)
2169 struct osd_scrub *scrub = &dev->od_scrub;
2170 struct scrub_file *sf = &scrub->os_file;
2171 struct dentry *child;
2175 /* It is existing MDT0 device. We only allow the case of object without
2176 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
2177 * can generate IGIF mode FID for the object and related OI mapping. If
2178 * it is on other MDTs, then becuase file-level backup/restore, related
2179 * OI mapping may be invalid already, we do not know which is the right
2180 * FID for the object. We only allow IGIF objects to reside on the MDT0.
2182 * XXX: For the case of object on non-MDT0 device with neither LMA nor
2183 * "fid" xattr, then something crashed. We cannot re-generate the
2184 * FID directly, instead, the OI scrub will scan the OI structure
2185 * and try to re-generate the LMA from the OI mapping. But if the
2186 * OI mapping crashed or lost also, then we have to give up under
2187 * double failure cases. */
2188 scrub->os_convert_igif = 1;
2189 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
2190 strlen(dot_lustre_name));
2191 if (IS_ERR(child)) {
2192 rc = PTR_ERR(child);
2193 if (rc == -ENOENT) {
2194 /* It is 1.8 MDT device. */
2195 if (!(sf->sf_flags & SF_UPGRADE)) {
2196 osd_scrub_file_reset(scrub,
2197 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
2199 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2200 rc = osd_scrub_file_store(scrub);
2206 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
2207 * so the client will get IGIF for the ".lustre" object when
2210 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
2211 * it does not know whether there are some old clients cached
2212 * the ".lustre" IGIF during the upgrading. Two choices:
2214 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
2215 * It will allow the old connected clients to access the
2216 * ".lustre" with cached IGIF. But it will cause others
2217 * on the MDT failed to check "fid_is_dot_lustre()".
2219 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
2220 * for ".lustre" in spite of whether there are some clients
2221 * cached the ".lustre" IGIF or not. It enables the check
2222 * "fid_is_dot_lustre()" on the MDT, although it will cause
2223 * that the old connected clients cannot access the ".lustre"
2224 * with the cached IGIF.
2226 * Usually, it is rare case for the old connected clients
2227 * to access the ".lustre" with cached IGIF. So we prefer
2228 * to the solution 2). */
2229 rc = osd_ios_scan_one(info, dev, child->d_inode,
2230 &LU_DOT_LUSTRE_FID, 0);
2232 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2241 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
2242 struct dentry *dentry, filldir_t filldir)
2244 struct osd_scrub *scrub = &dev->od_scrub;
2245 struct scrub_file *sf = &scrub->os_file;
2246 struct dentry *child;
2250 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
2251 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2252 rc = osd_scrub_file_store(scrub);
2257 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
2258 if (!IS_ERR(child)) {
2259 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2262 rc = PTR_ERR(child);
2265 if (rc != 0 && rc != -ENOENT)
2268 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
2269 if (!IS_ERR(child)) {
2270 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2273 rc = PTR_ERR(child);
2282 static int osd_initial_OI_scrub(struct osd_thread_info *info,
2283 struct osd_device *dev)
2285 struct osd_ios_item *item = NULL;
2286 scandir_t scandir = osd_ios_general_scan;
2287 filldir_t filldir = osd_ios_root_fill;
2288 struct dentry *dentry = osd_sb(dev)->s_root;
2289 const struct osd_lf_map *map = osd_lf_maps;
2293 /* Lookup IGIF in OI by force for initial OI scrub. */
2294 dev->od_igif_inoi = 1;
2297 rc = scandir(info, dev, dentry, filldir);
2299 dput(item->oii_dentry);
2306 if (list_empty(&dev->od_ios_list))
2309 item = list_entry(dev->od_ios_list.next,
2310 struct osd_ios_item, oii_list);
2311 list_del_init(&item->oii_list);
2313 LASSERT(item->oii_scandir != NULL);
2314 scandir = item->oii_scandir;
2315 filldir = item->oii_filldir;
2316 dentry = item->oii_dentry;
2319 while (!list_empty(&dev->od_ios_list)) {
2320 item = list_entry(dev->od_ios_list.next,
2321 struct osd_ios_item, oii_list);
2322 list_del_init(&item->oii_list);
2323 dput(item->oii_dentry);
2330 /* There maybe the case that the object has been removed, but its OI
2331 * mapping is still in the OI file, such as the "CATALOGS" after MDT
2332 * file-level backup/restore. So here cleanup the stale OI mappings. */
2333 while (map->olm_name != NULL) {
2334 struct dentry *child;
2336 if (fid_is_zero(&map->olm_fid)) {
2341 child = osd_ios_lookup_one_len(map->olm_name,
2342 osd_sb(dev)->s_root,
2346 else if (PTR_ERR(child) == -ENOENT)
2347 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
2348 NULL, DTO_INDEX_DELETE,
2356 char *osd_lf_fid2name(const struct lu_fid *fid)
2358 const struct osd_lf_map *map = osd_lf_maps;
2360 while (map->olm_name != NULL) {
2361 if (!lu_fid_eq(fid, &map->olm_fid)) {
2366 if (map->olm_flags & OLF_SHOW_NAME)
2367 return map->olm_name;
2375 /* OI scrub start/stop */
2377 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
2379 struct osd_scrub *scrub = &dev->od_scrub;
2380 struct ptlrpc_thread *thread = &scrub->os_thread;
2381 struct l_wait_info lwi = { 0 };
2382 struct task_struct *task;
2386 /* os_lock: sync status between stop and scrub thread */
2387 spin_lock(&scrub->os_lock);
2390 if (thread_is_running(thread)) {
2391 spin_unlock(&scrub->os_lock);
2392 if (!(scrub->os_file.sf_flags & SF_AUTO) ||
2393 (flags & (SS_AUTO_FULL | SS_AUTO_PARTIAL)))
2396 osd_scrub_join(dev, flags, false);
2397 spin_lock(&scrub->os_lock);
2398 if (!thread_is_running(thread))
2401 spin_unlock(&scrub->os_lock);
2405 if (unlikely(thread_is_stopping(thread))) {
2406 spin_unlock(&scrub->os_lock);
2407 l_wait_event(thread->t_ctl_waitq,
2408 thread_is_stopped(thread),
2410 spin_lock(&scrub->os_lock);
2413 spin_unlock(&scrub->os_lock);
2415 if (scrub->os_file.sf_status == SS_COMPLETED) {
2416 if (!(flags & SS_SET_FAILOUT))
2417 flags |= SS_CLEAR_FAILOUT;
2419 if (!(flags & SS_SET_DRYRUN))
2420 flags |= SS_CLEAR_DRYRUN;
2425 scrub->os_start_flags = flags;
2426 thread_set_flags(thread, 0);
2427 task = kthread_run(osd_scrub_main, dev, "OI_scrub");
2430 CERROR("%.16s: cannot start iteration thread: rc = %d\n",
2431 osd_scrub2name(scrub), rc);
2435 l_wait_event(thread->t_ctl_waitq,
2436 thread_is_running(thread) || thread_is_stopped(thread),
2442 int osd_scrub_start(struct osd_device *dev, __u32 flags)
2447 /* od_otable_mutex: prevent curcurrent start/stop */
2448 mutex_lock(&dev->od_otable_mutex);
2449 rc = do_osd_scrub_start(dev, flags);
2450 mutex_unlock(&dev->od_otable_mutex);
2452 RETURN(rc == -EALREADY ? 0 : rc);
2455 static void do_osd_scrub_stop(struct osd_scrub *scrub)
2457 struct ptlrpc_thread *thread = &scrub->os_thread;
2458 struct l_wait_info lwi = { 0 };
2460 /* os_lock: sync status between stop and scrub thread */
2461 spin_lock(&scrub->os_lock);
2462 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
2463 thread_set_flags(thread, SVC_STOPPING);
2464 spin_unlock(&scrub->os_lock);
2465 wake_up_all(&thread->t_ctl_waitq);
2466 l_wait_event(thread->t_ctl_waitq,
2467 thread_is_stopped(thread),
2469 /* Do not skip the last lock/unlock, which can guarantee that
2470 * the caller cannot return until the OI scrub thread exit. */
2471 spin_lock(&scrub->os_lock);
2473 spin_unlock(&scrub->os_lock);
2476 static void osd_scrub_stop(struct osd_device *dev)
2478 /* od_otable_mutex: prevent curcurrent start/stop */
2479 mutex_lock(&dev->od_otable_mutex);
2480 dev->od_scrub.os_paused = 1;
2481 do_osd_scrub_stop(&dev->od_scrub);
2482 mutex_unlock(&dev->od_otable_mutex);
2485 /* OI scrub setup/cleanup */
2487 static const char osd_scrub_name[] = "OI_scrub";
2489 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2491 struct osd_thread_info *info = osd_oti_get(env);
2492 struct osd_scrub *scrub = &dev->od_scrub;
2493 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2494 struct scrub_file *sf = &scrub->os_file;
2495 struct super_block *sb = osd_sb(dev);
2496 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2497 struct lvfs_run_ctxt saved;
2499 struct inode *inode;
2500 struct lu_fid *fid = &info->oti_fid;
2502 bool restored = false;
2506 memset(scrub, 0, sizeof(*scrub));
2507 OBD_SET_CTXT_MAGIC(ctxt);
2508 ctxt->pwdmnt = dev->od_mnt;
2509 ctxt->pwd = dev->od_mnt->mnt_root;
2510 ctxt->fs = get_ds();
2512 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2513 init_rwsem(&scrub->os_rwsem);
2514 spin_lock_init(&scrub->os_lock);
2515 INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2517 push_ctxt(&saved, ctxt);
2518 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2520 pop_ctxt(&saved, ctxt);
2521 RETURN(PTR_ERR(filp));
2524 inode = filp->f_path.dentry->d_inode;
2525 /* 'What the @fid is' is not imporatant, because the object
2526 * has no OI mapping, and only is visible inside the OSD.*/
2527 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2528 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2530 filp_close(filp, NULL);
2531 pop_ctxt(&saved, ctxt);
2535 scrub->os_inode = igrab(inode);
2536 filp_close(filp, NULL);
2537 pop_ctxt(&saved, ctxt);
2539 rc = osd_scrub_file_load(scrub);
2540 if (rc == -ENOENT) {
2541 osd_scrub_file_init(scrub, es->s_uuid);
2542 /* If the "/O" dir does not exist when mount (indicated by
2543 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2544 * then it is quite probably that the device is a new one,
2545 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2547 * For the rare case that "/O" and "OI_scrub" both lost on
2548 * an old device, it can be found and cleared later.
2550 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2551 * need to check "filter_fid_old" and to convert it to
2552 * "filter_fid" for each object, and all the IGIF should
2553 * have their FID mapping in OI files already. */
2554 if (dev->od_maybe_new)
2555 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2557 } else if (rc != 0) {
2558 GOTO(cleanup_inode, rc);
2560 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2561 struct obd_uuid *old_uuid;
2562 struct obd_uuid *new_uuid;
2564 OBD_ALLOC_PTR(old_uuid);
2565 OBD_ALLOC_PTR(new_uuid);
2566 if (old_uuid == NULL || new_uuid == NULL) {
2567 CERROR("%.16s: UUID has been changed, but"
2568 "failed to allocate RAM for report\n",
2569 LDISKFS_SB(sb)->s_es->s_volume_name);
2571 class_uuid_unparse(sf->sf_uuid, old_uuid);
2572 class_uuid_unparse(es->s_uuid, new_uuid);
2573 CERROR("%.16s: UUID has been changed from "
2575 LDISKFS_SB(sb)->s_es->s_volume_name,
2576 old_uuid->uuid, new_uuid->uuid);
2578 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2581 if (old_uuid != NULL)
2582 OBD_FREE_PTR(old_uuid);
2583 if (new_uuid != NULL)
2584 OBD_FREE_PTR(new_uuid);
2585 } else if (sf->sf_status == SS_SCANNING) {
2586 sf->sf_status = SS_CRASHED;
2591 if (sf->sf_pos_last_checkpoint != 0)
2592 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2594 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2597 rc = osd_scrub_file_store(scrub);
2599 GOTO(cleanup_inode, rc);
2602 /* Initialize OI files. */
2603 rc = osd_oi_init(info, dev, restored);
2605 GOTO(cleanup_inode, rc);
2607 rc = osd_initial_OI_scrub(info, dev);
2609 GOTO(cleanup_oi, rc);
2611 if (sf->sf_flags & SF_UPGRADE ||
2612 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2613 sf->sf_success_count > 0)) {
2614 dev->od_igif_inoi = 0;
2615 dev->od_check_ff = dev->od_is_ost;
2617 dev->od_igif_inoi = 1;
2618 dev->od_check_ff = 0;
2621 if (sf->sf_flags & SF_INCONSISTENT)
2622 /* The 'od_igif_inoi' will be set under the
2624 * 1) new created system, or
2625 * 2) restored from file-level backup, or
2626 * 3) the upgrading completed.
2628 * The 'od_igif_inoi' may be cleared by OI scrub
2629 * later if found that the system is upgrading. */
2630 dev->od_igif_inoi = 1;
2632 if (!dev->od_noscrub &&
2633 ((sf->sf_status == SS_PAUSED) ||
2634 (sf->sf_status == SS_CRASHED &&
2635 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2636 SF_UPGRADE | SF_AUTO)) ||
2637 (sf->sf_status == SS_INIT &&
2638 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2640 rc = osd_scrub_start(dev, SS_AUTO_FULL);
2643 GOTO(cleanup_oi, rc);
2645 /* it is possible that dcache entries may keep objects after they are
2646 * deleted by OSD. While it looks safe this can cause object data to
2647 * stay until umount causing failures in tests calculating free space,
2648 * e.g. replay-ost-single. Since those dcache entries are not used
2649 * anymore let's just free them after use here */
2650 shrink_dcache_sb(sb);
2654 osd_oi_fini(info, dev);
2656 iput(scrub->os_inode);
2657 scrub->os_inode = NULL;
2662 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2664 struct osd_scrub *scrub = &dev->od_scrub;
2666 LASSERT(dev->od_otable_it == NULL);
2668 if (scrub->os_inode != NULL) {
2669 osd_scrub_stop(dev);
2670 iput(scrub->os_inode);
2671 scrub->os_inode = NULL;
2673 if (dev->od_oi_table != NULL)
2674 osd_oi_fini(osd_oti_get(env), dev);
2677 /* object table based iteration APIs */
2679 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2680 struct dt_object *dt, __u32 attr)
2682 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2683 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2684 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2685 struct osd_scrub *scrub = &dev->od_scrub;
2686 struct osd_otable_it *it;
2691 /* od_otable_mutex: prevent curcurrent init/fini */
2692 mutex_lock(&dev->od_otable_mutex);
2693 if (dev->od_otable_it != NULL)
2694 GOTO(out, it = ERR_PTR(-EALREADY));
2698 GOTO(out, it = ERR_PTR(-ENOMEM));
2700 dev->od_otable_it = it;
2702 it->ooi_cache.ooc_consumer_idx = -1;
2703 if (flags & DOIF_OUTUSED)
2704 it->ooi_used_outside = 1;
2706 if (flags & DOIF_RESET)
2709 if (valid & DOIV_ERROR_HANDLE) {
2710 if (flags & DOIF_FAILOUT)
2711 start |= SS_SET_FAILOUT;
2713 start |= SS_CLEAR_FAILOUT;
2716 if (valid & DOIV_DRYRUN) {
2717 if (flags & DOIF_DRYRUN)
2718 start |= SS_SET_DRYRUN;
2720 start |= SS_CLEAR_DRYRUN;
2723 rc = do_osd_scrub_start(dev, start & ~SS_AUTO_PARTIAL);
2724 if (rc < 0 && rc != -EALREADY) {
2725 dev->od_otable_it = NULL;
2727 GOTO(out, it = ERR_PTR(rc));
2730 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2735 mutex_unlock(&dev->od_otable_mutex);
2736 return (struct dt_it *)it;
2739 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2741 struct osd_otable_it *it = (struct osd_otable_it *)di;
2742 struct osd_device *dev = it->ooi_dev;
2744 /* od_otable_mutex: prevent curcurrent init/fini */
2745 mutex_lock(&dev->od_otable_mutex);
2746 do_osd_scrub_stop(&dev->od_scrub);
2747 LASSERT(dev->od_otable_it == it);
2749 dev->od_otable_it = NULL;
2750 mutex_unlock(&dev->od_otable_mutex);
2754 static int osd_otable_it_get(const struct lu_env *env,
2755 struct dt_it *di, const struct dt_key *key)
2760 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2765 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2767 spin_lock(&scrub->os_lock);
2768 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2769 scrub->os_waiting ||
2770 !thread_is_running(&scrub->os_thread))
2771 it->ooi_waiting = 0;
2773 it->ooi_waiting = 1;
2774 spin_unlock(&scrub->os_lock);
2776 return !it->ooi_waiting;
2779 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2781 struct osd_otable_it *it = (struct osd_otable_it *)di;
2782 struct osd_device *dev = it->ooi_dev;
2783 struct osd_scrub *scrub = &dev->od_scrub;
2784 struct osd_otable_cache *ooc = &it->ooi_cache;
2785 struct ptlrpc_thread *thread = &scrub->os_thread;
2786 struct l_wait_info lwi = { 0 };
2790 LASSERT(it->ooi_user_ready);
2793 if (!thread_is_running(thread) && !it->ooi_used_outside)
2796 if (ooc->ooc_cached_items > 0) {
2797 ooc->ooc_cached_items--;
2798 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
2799 ~OSD_OTABLE_IT_CACHE_MASK;
2803 if (it->ooi_all_cached) {
2804 l_wait_event(thread->t_ctl_waitq,
2805 !thread_is_running(thread),
2810 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
2811 spin_lock(&scrub->os_lock);
2812 scrub->os_waiting = 0;
2813 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2814 spin_unlock(&scrub->os_lock);
2817 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
2818 l_wait_event(thread->t_ctl_waitq,
2819 osd_otable_it_wakeup(scrub, it),
2822 if (!thread_is_running(thread) && !it->ooi_used_outside)
2825 rc = osd_otable_it_preload(env, it);
2832 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
2833 const struct dt_it *di)
2838 static int osd_otable_it_key_size(const struct lu_env *env,
2839 const struct dt_it *di)
2841 return sizeof(__u64);
2844 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
2845 struct dt_rec *rec, __u32 attr)
2847 struct osd_otable_it *it = (struct osd_otable_it *)di;
2848 struct osd_otable_cache *ooc = &it->ooi_cache;
2850 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
2852 /* Filter out Invald FID already. */
2853 LASSERTF(fid_is_sane((struct lu_fid *)rec),
2854 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
2855 PFID((struct lu_fid *)rec),
2856 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
2861 static __u64 osd_otable_it_store(const struct lu_env *env,
2862 const struct dt_it *di)
2864 struct osd_otable_it *it = (struct osd_otable_it *)di;
2865 struct osd_otable_cache *ooc = &it->ooi_cache;
2868 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
2869 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
2871 hash = ooc->ooc_pos_preload;
2876 * Set the OSD layer iteration start position as the specified hash.
2878 static int osd_otable_it_load(const struct lu_env *env,
2879 const struct dt_it *di, __u64 hash)
2881 struct osd_otable_it *it = (struct osd_otable_it *)di;
2882 struct osd_device *dev = it->ooi_dev;
2883 struct osd_otable_cache *ooc = &it->ooi_cache;
2884 struct osd_scrub *scrub = &dev->od_scrub;
2888 /* Forbid to set iteration position after iteration started. */
2889 if (it->ooi_user_ready)
2892 if (hash > OSD_OTABLE_MAX_HASH)
2893 hash = OSD_OTABLE_MAX_HASH;
2895 ooc->ooc_pos_preload = hash;
2896 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
2897 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
2899 it->ooi_user_ready = 1;
2900 if (!scrub->os_full_speed)
2901 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2903 /* Unplug OSD layer iteration by the first next() call. */
2904 rc = osd_otable_it_next(env, (struct dt_it *)it);
2909 static int osd_otable_it_key_rec(const struct lu_env *env,
2910 const struct dt_it *di, void *key_rec)
2915 const struct dt_index_operations osd_otable_ops = {
2917 .init = osd_otable_it_init,
2918 .fini = osd_otable_it_fini,
2919 .get = osd_otable_it_get,
2920 .put = osd_otable_it_put,
2921 .next = osd_otable_it_next,
2922 .key = osd_otable_it_key,
2923 .key_size = osd_otable_it_key_size,
2924 .rec = osd_otable_it_rec,
2925 .store = osd_otable_it_store,
2926 .load = osd_otable_it_load,
2927 .key_rec = osd_otable_it_key_rec,
2931 /* high priority inconsistent items list APIs */
2933 #define SCRUB_BAD_OIMAP_DECAY_INTERVAL 60
2935 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
2938 struct osd_inconsistent_item *oii;
2939 struct osd_scrub *scrub = &dev->od_scrub;
2940 struct ptlrpc_thread *thread = &scrub->os_thread;
2945 if (unlikely(oii == NULL))
2948 INIT_LIST_HEAD(&oii->oii_list);
2949 oii->oii_cache = *oic;
2950 oii->oii_insert = insert;
2952 if (scrub->os_partial_scan) {
2953 __u64 now = cfs_time_current_sec();
2955 /* If there haven't been errors in a long time,
2956 * decay old count until either the errors are
2957 * gone or we reach the current interval. */
2958 while (unlikely(scrub->os_bad_oimap_count > 0 &&
2959 scrub->os_bad_oimap_time +
2960 SCRUB_BAD_OIMAP_DECAY_INTERVAL < now)) {
2961 scrub->os_bad_oimap_count >>= 1;
2962 scrub->os_bad_oimap_time +=
2963 SCRUB_BAD_OIMAP_DECAY_INTERVAL;
2966 scrub->os_bad_oimap_time = now;
2967 if (++scrub->os_bad_oimap_count >
2968 dev->od_full_scrub_threshold_rate)
2969 scrub->os_full_scrub = 1;
2972 spin_lock(&scrub->os_lock);
2973 if (unlikely(!thread_is_running(thread))) {
2974 spin_unlock(&scrub->os_lock);
2979 if (list_empty(&scrub->os_inconsistent_items))
2981 list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
2982 spin_unlock(&scrub->os_lock);
2985 wake_up_all(&thread->t_ctl_waitq);
2990 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
2991 struct osd_inode_id *id)
2993 struct osd_scrub *scrub = &dev->od_scrub;
2994 struct osd_inconsistent_item *oii;
2997 spin_lock(&scrub->os_lock);
2998 list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
2999 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
3000 *id = oii->oii_cache.oic_lid;
3001 spin_unlock(&scrub->os_lock);
3005 spin_unlock(&scrub->os_lock);
3012 static const char *scrub_status_names[] = {
3023 static const char *scrub_flags_names[] = {
3031 static const char *scrub_param_names[] = {
3037 static void scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
3043 seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
3045 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
3048 seq_printf(m, "%s%c", names[i],
3049 bits != 0 ? ',' : '\n');
3054 static void scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
3057 seq_printf(m, "%s: "LPU64" seconds\n", prefix,
3058 cfs_time_current_sec() - time);
3060 seq_printf(m, "%s: N/A\n", prefix);
3063 static void scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
3066 seq_printf(m, "%s: "LPU64"\n", prefix, pos);
3068 seq_printf(m, "%s: N/A\n", prefix);
3071 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
3073 struct osd_scrub *scrub = &dev->od_scrub;
3074 struct scrub_file *sf = &scrub->os_file;
3078 down_read(&scrub->os_rwsem);
3079 seq_printf(m, "name: OI_scrub\n"
3083 sf->sf_magic, (int)sf->sf_oi_count,
3084 scrub_status_names[sf->sf_status]);
3086 scrub_bits_dump(m, sf->sf_flags, scrub_flags_names, "flags");
3088 scrub_bits_dump(m, sf->sf_param, scrub_param_names, "param");
3090 scrub_time_dump(m, sf->sf_time_last_complete,
3091 "time_since_last_completed");
3093 scrub_time_dump(m, sf->sf_time_latest_start,
3094 "time_since_latest_start");
3096 scrub_time_dump(m, sf->sf_time_last_checkpoint,
3097 "time_since_last_checkpoint");
3099 scrub_pos_dump(m, sf->sf_pos_latest_start,
3100 "latest_start_position");
3102 scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
3103 "last_checkpoint_position");
3105 scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
3106 "first_failure_position");
3108 checked = sf->sf_items_checked + scrub->os_new_checked;
3109 seq_printf(m, "checked: "LPU64"\n"
3110 "updated: "LPU64"\n"
3112 "prior_updated: "LPU64"\n"
3113 "noscrub: "LPU64"\n"
3115 "success_count: %u\n",
3116 checked, sf->sf_items_updated, sf->sf_items_failed,
3117 sf->sf_items_updated_prior, sf->sf_items_noscrub,
3118 sf->sf_items_igif, sf->sf_success_count);
3121 if (thread_is_running(&scrub->os_thread)) {
3122 cfs_duration_t duration = cfs_time_current() -
3123 scrub->os_time_last_checkpoint;
3124 __u64 new_checked = msecs_to_jiffies(scrub->os_new_checked *
3126 __u32 rtime = sf->sf_run_time +
3127 cfs_duration_sec(duration + HALF_SEC);
3130 do_div(new_checked, duration);
3132 do_div(speed, rtime);
3133 seq_printf(m, "run_time: %u seconds\n"
3134 "average_speed: "LPU64" objects/sec\n"
3135 "real-time_speed: "LPU64" objects/sec\n"
3136 "current_position: %u\n"
3137 "lf_scanned: "LPU64"\n"
3138 "lf_repaired: "LPU64"\n"
3139 "lf_failed: "LPU64"\n",
3140 rtime, speed, new_checked, scrub->os_pos_current,
3141 scrub->os_lf_scanned, scrub->os_lf_repaired,
3142 scrub->os_lf_failed);
3144 if (sf->sf_run_time != 0)
3145 do_div(speed, sf->sf_run_time);
3146 seq_printf(m, "run_time: %u seconds\n"
3147 "average_speed: "LPU64" objects/sec\n"
3148 "real-time_speed: N/A\n"
3149 "current_position: N/A\n"
3150 "lf_scanned: "LPU64"\n"
3151 "lf_repaired: "LPU64"\n"
3152 "lf_failed: "LPU64"\n",
3153 sf->sf_run_time, speed, scrub->os_lf_scanned,
3154 scrub->os_lf_repaired, scrub->os_lf_failed);
3157 up_read(&scrub->os_rwsem);