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, bool *exist)
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, exist);
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;
471 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;
553 case SCRUB_NEXT_NOLMA:
554 sf->sf_flags |= SF_UPGRADE;
555 if (!(sf->sf_param & SP_DRYRUN)) {
556 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
561 if (!(sf->sf_flags & SF_INCONSISTENT))
562 dev->od_igif_inoi = 0;
564 case SCRUB_NEXT_OSTOBJ:
565 sf->sf_flags |= SF_INCONSISTENT;
566 case SCRUB_NEXT_OSTOBJ_OLD:
571 } else if (osd_id_eq(lid, lid2)) {
573 sf->sf_items_updated++;
577 if (!scrub->os_partial_scan)
578 scrub->os_full_speed = 1;
580 sf->sf_flags |= SF_INCONSISTENT;
582 /* XXX: If the device is restored from file-level backup, then
583 * some IGIFs may have been already in OI files, and some
584 * may be not yet. Means upgrading from 1.8 may be partly
585 * processed, but some clients may hold some immobilized
586 * IGIFs, and use them to access related objects. Under
587 * such case, OSD does not know whether an given IGIF has
588 * been processed or to be processed, and it also cannot
589 * generate local ino#/gen# directly from the immobilized
590 * IGIF because of the backup/restore. Then force OSD to
591 * lookup the given IGIF in OI files, and if no entry,
592 * then ask the client to retry after upgrading completed.
593 * No better choice. */
594 dev->od_igif_inoi = 1;
597 rc = osd_scrub_refresh_mapping(info, dev, fid, lid, ops, false,
598 (val == SCRUB_NEXT_OSTOBJ ||
599 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0,
602 if (scrub->os_in_prior)
603 sf->sf_items_updated_prior++;
605 sf->sf_items_updated++;
607 if (ops == DTO_INDEX_INSERT && val == 0 && !exist) {
608 int idx = osd_oi_fid2idx(dev, fid);
610 sf->sf_flags |= SF_RECREATED;
611 if (unlikely(!ldiskfs_test_bit(idx, sf->sf_oi_bitmap)))
612 ldiskfs_set_bit(idx, sf->sf_oi_bitmap);
620 sf->sf_items_failed++;
621 if (sf->sf_pos_first_inconsistent == 0 ||
622 sf->sf_pos_first_inconsistent > lid->oii_ino)
623 sf->sf_pos_first_inconsistent = lid->oii_ino;
628 /* There may be conflict unlink during the OI scrub,
629 * if happend, then remove the new added OI mapping. */
630 if (ops == DTO_INDEX_INSERT && inode != NULL && !IS_ERR(inode) &&
631 unlikely(ldiskfs_test_inode_state(inode,
632 LDISKFS_STATE_LUSTRE_DESTROY)))
633 osd_scrub_refresh_mapping(info, dev, fid, lid,
634 DTO_INDEX_DELETE, false,
635 (val == SCRUB_NEXT_OSTOBJ ||
636 val == SCRUB_NEXT_OSTOBJ_OLD) ?
637 OI_KNOWN_ON_OST : 0, NULL);
638 up_write(&scrub->os_rwsem);
640 if (inode != NULL && !IS_ERR(inode))
644 LASSERT(list_empty(&oii->oii_list));
649 RETURN(sf->sf_param & SP_FAILOUT ? rc : 0);
654 static int osd_scrub_prep(struct osd_device *dev)
656 struct osd_scrub *scrub = &dev->od_scrub;
657 struct ptlrpc_thread *thread = &scrub->os_thread;
658 struct scrub_file *sf = &scrub->os_file;
659 __u32 flags = scrub->os_start_flags;
661 bool drop_dryrun = false;
664 CDEBUG(D_LFSCK, "%.16s: OI scrub prep, flags = 0x%x\n",
665 osd_scrub2name(scrub), flags);
667 down_write(&scrub->os_rwsem);
668 if (flags & SS_SET_FAILOUT)
669 sf->sf_param |= SP_FAILOUT;
670 else if (flags & SS_CLEAR_FAILOUT)
671 sf->sf_param &= ~SP_FAILOUT;
673 if (flags & SS_SET_DRYRUN) {
674 sf->sf_param |= SP_DRYRUN;
675 } else if (flags & SS_CLEAR_DRYRUN && sf->sf_param & SP_DRYRUN) {
676 sf->sf_param &= ~SP_DRYRUN;
680 if (flags & SS_RESET)
681 osd_scrub_file_reset(scrub,
682 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, 0);
684 if (flags & SS_AUTO_FULL) {
685 scrub->os_full_speed = 1;
686 scrub->os_partial_scan = 0;
687 sf->sf_flags |= SF_AUTO;
688 } else if (flags & SS_AUTO_PARTIAL) {
689 scrub->os_full_speed = 0;
690 scrub->os_partial_scan = 1;
691 sf->sf_flags |= SF_AUTO;
692 } else if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
694 scrub->os_full_speed = 1;
695 scrub->os_partial_scan = 0;
697 scrub->os_full_speed = 0;
698 scrub->os_partial_scan = 0;
701 spin_lock(&scrub->os_lock);
702 scrub->os_in_prior = 0;
703 scrub->os_waiting = 0;
704 scrub->os_paused = 0;
705 scrub->os_in_join = 0;
706 scrub->os_full_scrub = 0;
707 spin_unlock(&scrub->os_lock);
708 scrub->os_new_checked = 0;
709 if (drop_dryrun && sf->sf_pos_first_inconsistent != 0)
710 sf->sf_pos_latest_start = sf->sf_pos_first_inconsistent;
711 else if (sf->sf_pos_last_checkpoint != 0)
712 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
714 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
716 scrub->os_pos_current = sf->sf_pos_latest_start;
717 sf->sf_status = SS_SCANNING;
718 sf->sf_time_latest_start = cfs_time_current_sec();
719 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
720 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
721 rc = osd_scrub_file_store(scrub);
723 spin_lock(&scrub->os_lock);
724 thread_set_flags(thread, SVC_RUNNING);
725 spin_unlock(&scrub->os_lock);
726 wake_up_all(&thread->t_ctl_waitq);
728 up_write(&scrub->os_rwsem);
733 static int osd_scrub_checkpoint(struct osd_scrub *scrub)
735 struct scrub_file *sf = &scrub->os_file;
738 if (likely(cfs_time_before(cfs_time_current(),
739 scrub->os_time_next_checkpoint) ||
740 scrub->os_new_checked == 0))
743 down_write(&scrub->os_rwsem);
744 sf->sf_items_checked += scrub->os_new_checked;
745 scrub->os_new_checked = 0;
746 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
747 sf->sf_time_last_checkpoint = cfs_time_current_sec();
748 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
749 scrub->os_time_last_checkpoint);
750 rc = osd_scrub_file_store(scrub);
751 up_write(&scrub->os_rwsem);
756 static int osd_scrub_post(struct osd_scrub *scrub, int result)
758 struct scrub_file *sf = &scrub->os_file;
762 CDEBUG(D_LFSCK, "%.16s: OI scrub post, result = %d\n",
763 osd_scrub2name(scrub), result);
765 down_write(&scrub->os_rwsem);
766 spin_lock(&scrub->os_lock);
767 thread_set_flags(&scrub->os_thread, SVC_STOPPING);
768 spin_unlock(&scrub->os_lock);
769 if (scrub->os_new_checked > 0) {
770 sf->sf_items_checked += scrub->os_new_checked;
771 scrub->os_new_checked = 0;
772 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
774 sf->sf_time_last_checkpoint = cfs_time_current_sec();
776 struct osd_device *dev =
777 container_of0(scrub, struct osd_device, od_scrub);
779 dev->od_igif_inoi = 1;
780 dev->od_check_ff = 0;
781 sf->sf_status = SS_COMPLETED;
782 if (!(sf->sf_param & SP_DRYRUN)) {
783 memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
784 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
785 SF_UPGRADE | SF_AUTO);
787 sf->sf_time_last_complete = sf->sf_time_last_checkpoint;
788 sf->sf_success_count++;
789 } else if (result == 0) {
790 if (scrub->os_paused)
791 sf->sf_status = SS_PAUSED;
793 sf->sf_status = SS_STOPPED;
795 sf->sf_status = SS_FAILED;
797 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
798 scrub->os_time_last_checkpoint);
799 rc = osd_scrub_file_store(scrub);
800 up_write(&scrub->os_rwsem);
802 RETURN(rc < 0 ? rc : result);
805 /* iteration engine */
807 struct osd_iit_param {
808 struct super_block *sb;
809 struct buffer_head *bitmap;
815 typedef int (*osd_iit_next_policy)(struct osd_thread_info *info,
816 struct osd_device *dev,
817 struct osd_iit_param *param,
818 struct osd_idmap_cache **oic,
821 typedef int (*osd_iit_exec_policy)(struct osd_thread_info *info,
822 struct osd_device *dev,
823 struct osd_iit_param *param,
824 struct osd_idmap_cache *oic,
825 bool *noslot, int rc);
827 static int osd_iit_next(struct osd_iit_param *param, __u32 *pos)
829 param->offset = ldiskfs_find_next_bit(param->bitmap->b_data,
830 LDISKFS_INODES_PER_GROUP(param->sb), param->offset);
831 if (param->offset >= LDISKFS_INODES_PER_GROUP(param->sb)) {
832 *pos = 1 + (param->bg+1) * LDISKFS_INODES_PER_GROUP(param->sb);
833 return SCRUB_NEXT_BREAK;
835 *pos = param->gbase + param->offset;
841 * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST
842 * \retval 0: FID-on-MDT
844 static int osd_scrub_check_local_fldb(struct osd_thread_info *info,
845 struct osd_device *dev,
848 /* XXX: The initial OI scrub will scan the top level /O to generate
849 * a small local FLDB according to the <seq>. If the given FID
850 * is in the local FLDB, then it is FID-on-OST; otherwise it's
851 * quite possible for FID-on-MDT. */
853 return SCRUB_NEXT_OSTOBJ_OLD;
858 static int osd_scrub_get_fid(struct osd_thread_info *info,
859 struct osd_device *dev, struct inode *inode,
860 struct lu_fid *fid, bool scrub)
862 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
864 bool has_lma = false;
866 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
869 if (lma->lma_compat & LMAC_NOT_IN_OI ||
870 lma->lma_incompat & LMAI_AGENT)
871 return SCRUB_NEXT_CONTINUE;
873 *fid = lma->lma_self_fid;
877 if (lma->lma_compat & LMAC_FID_ON_OST)
878 return SCRUB_NEXT_OSTOBJ;
880 if (fid_is_idif(fid))
881 return SCRUB_NEXT_OSTOBJ_OLD;
883 /* For local object. */
884 if (fid_is_internal(fid))
887 /* For external visible MDT-object with non-normal FID. */
888 if (fid_is_namespace_visible(fid) && !fid_is_norm(fid))
891 /* For the object with normal FID, it may be MDT-object,
892 * or may be 2.4 OST-object, need further distinguish.
893 * Fall through to next section. */
896 if (rc == -ENODATA || rc == 0) {
897 rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid);
900 /* It is old 2.x (x <= 3) or 1.8 OST-object. */
901 rc = SCRUB_NEXT_OSTOBJ_OLD;
907 /* It is FID-on-OST, but we do not know how
908 * to generate its FID, ignore it directly. */
909 rc = SCRUB_NEXT_CONTINUE;
911 /* It is 2.4 OST-object. */
912 rc = SCRUB_NEXT_OSTOBJ_OLD;
920 if (dev->od_scrub.os_convert_igif) {
921 lu_igif_build(fid, inode->i_ino,
922 inode->i_generation);
924 rc = SCRUB_NEXT_NOLMA;
928 /* It may be FID-on-OST, or may be FID for
929 * non-MDT0, anyway, we do not know how to
930 * generate its FID, ignore it directly. */
931 rc = SCRUB_NEXT_CONTINUE;
936 /* For OI scrub case only: the object has LMA but has no ff
937 * (or ff crashed). It may be MDT-object, may be OST-object
938 * with crashed ff. The last check is local FLDB. */
939 rc = osd_scrub_check_local_fldb(info, dev, fid);
945 static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
946 struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
947 struct super_block *sb, bool scrub)
953 /* Not handle the backend root object and agent parent object.
954 * They are neither visible to namespace nor have OI mappings. */
955 if (unlikely(pos == osd_sb(dev)->s_root->d_inode->i_ino ||
956 pos == osd_remote_parent_ino(dev)))
957 RETURN(SCRUB_NEXT_CONTINUE);
959 osd_id_gen(lid, pos, OSD_OII_NOGEN);
960 inode = osd_iget(info, dev, lid);
963 /* The inode may be removed after bitmap searching, or the
964 * file is new created without inode initialized yet. */
965 if (rc == -ENOENT || rc == -ESTALE)
966 RETURN(SCRUB_NEXT_CONTINUE);
968 CDEBUG(D_LFSCK, "%.16s: fail to read inode, ino# = %u: "
969 "rc = %d\n", LDISKFS_SB(sb)->s_es->s_volume_name,
974 /* It is an EA inode, no OI mapping for it, skip it. */
975 if (osd_is_ea_inode(inode))
976 GOTO(put, rc = SCRUB_NEXT_CONTINUE);
979 ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
980 /* Only skip it for the first OI scrub accessing. */
981 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
982 GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
985 rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
994 static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
995 struct osd_iit_param *param,
996 struct osd_idmap_cache **oic, const bool noslot)
998 struct osd_scrub *scrub = &dev->od_scrub;
999 struct ptlrpc_thread *thread = &scrub->os_thread;
1001 struct osd_inode_id *lid;
1004 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
1005 struct l_wait_info lwi;
1007 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
1008 if (likely(lwi.lwi_timeout > 0))
1009 l_wait_event(thread->t_ctl_waitq,
1010 !list_empty(&scrub->os_inconsistent_items) ||
1011 !thread_is_running(thread),
1015 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
1016 spin_lock(&scrub->os_lock);
1017 thread_set_flags(thread, SVC_STOPPING);
1018 spin_unlock(&scrub->os_lock);
1019 return SCRUB_NEXT_CRASH;
1022 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
1023 return SCRUB_NEXT_FATAL;
1025 if (unlikely(!thread_is_running(thread)))
1026 return SCRUB_NEXT_EXIT;
1028 if (!list_empty(&scrub->os_inconsistent_items)) {
1029 spin_lock(&scrub->os_lock);
1030 if (likely(!list_empty(&scrub->os_inconsistent_items))) {
1031 struct osd_inconsistent_item *oii;
1033 oii = list_entry(scrub->os_inconsistent_items.next,
1034 struct osd_inconsistent_item, oii_list);
1035 list_del_init(&oii->oii_list);
1036 spin_unlock(&scrub->os_lock);
1038 *oic = &oii->oii_cache;
1039 scrub->os_in_prior = 1;
1043 spin_unlock(&scrub->os_lock);
1047 return SCRUB_NEXT_WAIT;
1049 rc = osd_iit_next(param, &scrub->os_pos_current);
1053 *oic = &scrub->os_oic;
1054 fid = &(*oic)->oic_fid;
1055 lid = &(*oic)->oic_lid;
1056 rc = osd_iit_iget(info, dev, fid, lid,
1057 scrub->os_pos_current, param->sb, true);
1061 static int osd_preload_next(struct osd_thread_info *info,
1062 struct osd_device *dev, struct osd_iit_param *param,
1063 struct osd_idmap_cache **oic, const bool noslot)
1065 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1066 struct osd_scrub *scrub;
1067 struct ptlrpc_thread *thread;
1070 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1074 scrub = &dev->od_scrub;
1075 thread = &scrub->os_thread;
1076 if (thread_is_running(thread) &&
1077 ooc->ooc_pos_preload >= scrub->os_pos_current)
1078 return SCRUB_NEXT_EXIT;
1080 rc = osd_iit_iget(info, dev,
1081 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1082 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1083 ooc->ooc_pos_preload, param->sb, false);
1084 /* If succeed, it needs to move forward; otherwise up layer LFSCK may
1085 * ignore the failure, so it still need to skip the inode next time. */
1086 ooc->ooc_pos_preload = param->gbase + ++(param->offset);
1091 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1093 spin_lock(&scrub->os_lock);
1094 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1095 !list_empty(&scrub->os_inconsistent_items) ||
1096 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1097 scrub->os_waiting = 0;
1099 scrub->os_waiting = 1;
1100 spin_unlock(&scrub->os_lock);
1102 return !scrub->os_waiting;
1105 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1106 struct osd_iit_param *param,
1107 struct osd_idmap_cache *oic, bool *noslot, int rc)
1109 struct l_wait_info lwi = { 0 };
1110 struct osd_scrub *scrub = &dev->od_scrub;
1111 struct scrub_file *sf = &scrub->os_file;
1112 struct ptlrpc_thread *thread = &scrub->os_thread;
1113 struct osd_otable_it *it = dev->od_otable_it;
1114 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1117 case SCRUB_NEXT_CONTINUE:
1119 case SCRUB_NEXT_WAIT:
1121 case SCRUB_NEXT_NOSCRUB:
1122 down_write(&scrub->os_rwsem);
1123 scrub->os_new_checked++;
1124 sf->sf_items_noscrub++;
1125 up_write(&scrub->os_rwsem);
1129 rc = osd_scrub_check_update(info, dev, oic, rc);
1131 scrub->os_in_prior = 0;
1135 rc = osd_scrub_checkpoint(scrub);
1137 CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: "
1138 "rc = %d\n", osd_scrub2name(scrub),
1139 scrub->os_pos_current, rc);
1140 /* Continue, as long as the scrub itself can go ahead. */
1143 if (scrub->os_in_prior) {
1144 scrub->os_in_prior = 0;
1149 scrub->os_pos_current = param->gbase + ++(param->offset);
1152 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1153 ooc->ooc_pos_preload < scrub->os_pos_current) {
1154 spin_lock(&scrub->os_lock);
1155 it->ooi_waiting = 0;
1156 wake_up_all(&thread->t_ctl_waitq);
1157 spin_unlock(&scrub->os_lock);
1160 if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
1163 if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) {
1169 l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
1172 if (ooc != NULL && osd_scrub_has_window(scrub, ooc))
1179 static int osd_preload_exec(struct osd_thread_info *info,
1180 struct osd_device *dev, struct osd_iit_param *param,
1181 struct osd_idmap_cache *oic, bool *noslot, int rc)
1183 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1186 ooc->ooc_cached_items++;
1187 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1188 ~OSD_OTABLE_IT_CACHE_MASK;
1190 return rc > 0 ? 0 : rc;
1193 #define SCRUB_IT_ALL 1
1194 #define SCRUB_IT_CRASH 2
1196 static void osd_scrub_join(struct osd_device *dev, __u32 flags,
1199 struct osd_scrub *scrub = &dev->od_scrub;
1200 struct ptlrpc_thread *thread = &scrub->os_thread;
1201 struct scrub_file *sf = &scrub->os_file;
1205 LASSERT(!(flags & SS_AUTO_PARTIAL));
1207 down_write(&scrub->os_rwsem);
1208 scrub->os_in_join = 1;
1209 if (flags & SS_SET_FAILOUT)
1210 sf->sf_param |= SP_FAILOUT;
1211 else if (flags & SS_CLEAR_FAILOUT)
1212 sf->sf_param &= ~SP_FAILOUT;
1214 if (flags & SS_SET_DRYRUN)
1215 sf->sf_param |= SP_DRYRUN;
1216 else if (flags & SS_CLEAR_DRYRUN)
1217 sf->sf_param &= ~SP_DRYRUN;
1219 if (flags & SS_RESET) {
1220 osd_scrub_file_reset(scrub,
1221 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1222 inconsistent ? SF_INCONSISTENT : 0);
1223 sf->sf_status = SS_SCANNING;
1226 if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
1227 scrub->os_full_speed = 1;
1229 scrub->os_full_speed = 0;
1231 if (flags & SS_AUTO_FULL) {
1232 sf->sf_flags |= SF_AUTO;
1233 scrub->os_full_speed = 1;
1236 scrub->os_new_checked = 0;
1237 if (sf->sf_pos_last_checkpoint != 0)
1238 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
1240 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
1242 scrub->os_pos_current = sf->sf_pos_latest_start;
1243 sf->sf_time_latest_start = cfs_time_current_sec();
1244 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
1245 sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1;
1246 rc = osd_scrub_file_store(scrub);
1248 CDEBUG(D_LFSCK, "%.16s: fail to store scrub file when join "
1249 "the OI scrub: rc = %d\n", osd_scrub2name(scrub), rc);
1251 spin_lock(&scrub->os_lock);
1252 scrub->os_waiting = 0;
1253 scrub->os_paused = 0;
1254 scrub->os_partial_scan = 0;
1255 scrub->os_in_join = 0;
1256 scrub->os_full_scrub = 0;
1257 spin_unlock(&scrub->os_lock);
1258 wake_up_all(&thread->t_ctl_waitq);
1259 up_write(&scrub->os_rwsem);
1264 static int osd_inode_iteration(struct osd_thread_info *info,
1265 struct osd_device *dev, __u32 max, bool preload)
1267 struct osd_scrub *scrub = &dev->od_scrub;
1268 struct ptlrpc_thread *thread = &scrub->os_thread;
1269 struct scrub_file *sf = &scrub->os_file;
1270 osd_iit_next_policy next;
1271 osd_iit_exec_policy exec;
1274 struct osd_iit_param param = { NULL };
1275 struct l_wait_info lwi = { 0 };
1281 param.sb = osd_sb(dev);
1285 while (scrub->os_partial_scan && !scrub->os_in_join) {
1286 struct osd_idmap_cache *oic = NULL;
1288 rc = osd_scrub_next(info, dev, ¶m, &oic, noslot);
1290 case SCRUB_NEXT_EXIT:
1292 case SCRUB_NEXT_CRASH:
1293 RETURN(SCRUB_IT_CRASH);
1294 case SCRUB_NEXT_FATAL:
1296 case SCRUB_NEXT_WAIT: {
1297 struct kstatfs *ksfs = &info->oti_ksfs;
1300 if (dev->od_full_scrub_ratio == OFSR_NEVER ||
1301 unlikely(sf->sf_items_updated_prior == 0))
1304 if (dev->od_full_scrub_ratio == OFSR_DIRECTLY ||
1305 scrub->os_full_scrub) {
1306 osd_scrub_join(dev, SS_AUTO_FULL | SS_RESET,
1311 rc = param.sb->s_op->statfs(param.sb->s_root, ksfs);
1313 __u64 used = ksfs->f_files - ksfs->f_ffree;
1315 do_div(used, sf->sf_items_updated_prior);
1316 /* If we hit too much inconsistent OI
1317 * mappings during the partial scan,
1318 * then scan the device completely. */
1319 if (used < dev->od_full_scrub_ratio) {
1321 SS_AUTO_FULL | SS_RESET, true);
1327 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) &&
1331 saved_flags = sf->sf_flags;
1332 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
1333 SF_UPGRADE | SF_AUTO);
1334 sf->sf_status = SS_COMPLETED;
1335 l_wait_event(thread->t_ctl_waitq,
1336 !thread_is_running(thread) ||
1337 !scrub->os_partial_scan ||
1338 scrub->os_in_join ||
1339 !list_empty(&scrub->os_inconsistent_items),
1341 sf->sf_flags = saved_flags;
1342 sf->sf_status = SS_SCANNING;
1344 if (unlikely(!thread_is_running(thread)))
1347 if (!scrub->os_partial_scan || scrub->os_in_join)
1353 LASSERTF(rc == 0, "rc = %d\n", rc);
1355 osd_scrub_exec(info, dev, ¶m, oic, &noslot, rc);
1362 l_wait_event(thread->t_ctl_waitq,
1363 !thread_is_running(thread) || !scrub->os_in_join,
1366 if (unlikely(!thread_is_running(thread)))
1372 next = osd_scrub_next;
1373 exec = osd_scrub_exec;
1374 pos = &scrub->os_pos_current;
1375 count = &scrub->os_new_checked;
1377 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1379 next = osd_preload_next;
1380 exec = osd_preload_exec;
1381 pos = &ooc->ooc_pos_preload;
1382 count = &ooc->ooc_cached_items;
1384 limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
1386 while (*pos <= limit && *count < max) {
1387 struct osd_idmap_cache *oic = NULL;
1388 struct ldiskfs_group_desc *desc;
1390 param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
1391 desc = ldiskfs_get_group_desc(param.sb, param.bg, NULL);
1395 ldiskfs_lock_group(param.sb, param.bg);
1396 if (desc->bg_flags & cpu_to_le16(LDISKFS_BG_INODE_UNINIT)) {
1397 ldiskfs_unlock_group(param.sb, param.bg);
1398 *pos = 1 + (param.bg + 1) *
1399 LDISKFS_INODES_PER_GROUP(param.sb);
1402 ldiskfs_unlock_group(param.sb, param.bg);
1404 param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
1405 param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1406 param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
1407 if (param.bitmap == NULL) {
1408 CDEBUG(D_LFSCK, "%.16s: fail to read bitmap for %u, "
1409 "scrub will stop, urgent mode\n",
1410 osd_scrub2name(scrub), (__u32)param.bg);
1414 while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
1417 ldiskfs_itable_unused_count(param.sb, desc) >
1418 LDISKFS_INODES_PER_GROUP(param.sb))
1421 rc = next(info, dev, ¶m, &oic, noslot);
1423 case SCRUB_NEXT_BREAK:
1425 case SCRUB_NEXT_EXIT:
1426 brelse(param.bitmap);
1428 case SCRUB_NEXT_CRASH:
1429 brelse(param.bitmap);
1430 RETURN(SCRUB_IT_CRASH);
1431 case SCRUB_NEXT_FATAL:
1432 brelse(param.bitmap);
1436 rc = exec(info, dev, ¶m, oic, &noslot, rc);
1438 brelse(param.bitmap);
1444 brelse(param.bitmap);
1448 RETURN(SCRUB_IT_ALL);
1452 static int osd_otable_it_preload(const struct lu_env *env,
1453 struct osd_otable_it *it)
1455 struct osd_device *dev = it->ooi_dev;
1456 struct osd_scrub *scrub = &dev->od_scrub;
1457 struct osd_otable_cache *ooc = &it->ooi_cache;
1461 rc = osd_inode_iteration(osd_oti_get(env), dev,
1462 OSD_OTABLE_IT_CACHE_SIZE, true);
1463 if (rc == SCRUB_IT_ALL)
1464 it->ooi_all_cached = 1;
1466 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1467 spin_lock(&scrub->os_lock);
1468 scrub->os_waiting = 0;
1469 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1470 spin_unlock(&scrub->os_lock);
1473 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1476 static int osd_scrub_main(void *args)
1479 struct osd_device *dev = (struct osd_device *)args;
1480 struct osd_scrub *scrub = &dev->od_scrub;
1481 struct ptlrpc_thread *thread = &scrub->os_thread;
1485 rc = lu_env_init(&env, LCT_LOCAL);
1487 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n",
1488 osd_scrub2name(scrub), rc);
1492 rc = osd_scrub_prep(dev);
1494 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n",
1495 osd_scrub2name(scrub), rc);
1499 if (!scrub->os_full_speed && !scrub->os_partial_scan) {
1500 struct l_wait_info lwi = { 0 };
1501 struct osd_otable_it *it = dev->od_otable_it;
1502 struct osd_otable_cache *ooc = &it->ooi_cache;
1504 l_wait_event(thread->t_ctl_waitq,
1505 it->ooi_user_ready || !thread_is_running(thread),
1507 if (unlikely(!thread_is_running(thread)))
1510 scrub->os_pos_current = ooc->ooc_pos_preload;
1513 CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n",
1514 osd_scrub2name(scrub), scrub->os_start_flags,
1515 scrub->os_pos_current);
1517 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1518 if (unlikely(rc == SCRUB_IT_CRASH))
1519 GOTO(out, rc = -EINVAL);
1523 rc = osd_scrub_post(scrub, rc);
1524 CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n",
1525 osd_scrub2name(scrub), scrub->os_pos_current, rc);
1528 while (!list_empty(&scrub->os_inconsistent_items)) {
1529 struct osd_inconsistent_item *oii;
1531 oii = list_entry(scrub->os_inconsistent_items.next,
1532 struct osd_inconsistent_item, oii_list);
1533 list_del_init(&oii->oii_list);
1539 spin_lock(&scrub->os_lock);
1540 thread_set_flags(thread, SVC_STOPPED);
1541 wake_up_all(&thread->t_ctl_waitq);
1542 spin_unlock(&scrub->os_lock);
1546 /* initial OI scrub */
1548 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1549 struct dentry *, filldir_t filldir);
1551 #ifdef HAVE_FILLDIR_USE_CTX
1552 static int osd_ios_varfid_fill(struct dir_context *buf, const char *name,
1553 int namelen, loff_t offset, __u64 ino,
1555 static int osd_ios_lf_fill(struct dir_context *buf, const char *name,
1556 int namelen, loff_t offset, __u64 ino,
1558 static int osd_ios_dl_fill(struct dir_context *buf, const char *name,
1559 int namelen, loff_t offset, __u64 ino,
1561 static int osd_ios_uld_fill(struct dir_context *buf, const char *name,
1562 int namelen, loff_t offset, __u64 ino,
1565 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1566 loff_t offset, __u64 ino, unsigned d_type);
1567 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1568 loff_t offset, __u64 ino, unsigned d_type);
1569 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1570 loff_t offset, __u64 ino, unsigned d_type);
1571 static int osd_ios_uld_fill(void *buf, const char *name, int namelen,
1572 loff_t offset, __u64 ino, unsigned d_type);
1576 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1577 struct dentry *dentry, filldir_t filldir);
1579 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1580 struct dentry *dentry, filldir_t filldir);
1583 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1584 struct dentry *dentry, filldir_t filldir);
1587 OLF_SCAN_SUBITEMS = 0x0001,
1588 OLF_HIDE_FID = 0x0002,
1589 OLF_SHOW_NAME = 0x0004,
1591 OLF_IDX_IN_FID = 0x0010,
1596 struct lu_fid olm_fid;
1599 scandir_t olm_scandir;
1600 filldir_t olm_filldir;
1603 /* Add the new introduced local files in the list in the future. */
1604 static const struct osd_lf_map osd_lf_maps[] = {
1606 { CATLIST, { FID_SEQ_LOCAL_FILE, LLOG_CATALOGS_OID, 0 }, OLF_SHOW_NAME,
1607 sizeof(CATLIST) - 1, NULL, NULL },
1610 { MOUNT_CONFIGS_DIR, { FID_SEQ_LOCAL_FILE, MGS_CONFIGS_OID, 0 },
1611 OLF_SCAN_SUBITEMS, sizeof(MOUNT_CONFIGS_DIR) - 1,
1612 osd_ios_general_scan, osd_ios_varfid_fill },
1614 /* NIDTBL_VERSIONS */
1615 { MGS_NIDTBL_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1616 sizeof(MGS_NIDTBL_DIR) - 1, osd_ios_general_scan,
1617 osd_ios_varfid_fill },
1620 { "PENDING", { 0, 0, 0 }, 0, sizeof("PENDING") - 1, NULL, NULL },
1623 { "ROOT", { FID_SEQ_ROOT, FID_OID_ROOT, 0 },
1624 OLF_SCAN_SUBITEMS | OLF_HIDE_FID, sizeof("ROOT") - 1,
1625 osd_ios_ROOT_scan, NULL },
1627 /* changelog_catalog */
1628 { CHANGELOG_CATALOG, { 0, 0, 0 }, 0, sizeof(CHANGELOG_CATALOG) - 1,
1631 /* changelog_users */
1632 { CHANGELOG_USERS, { 0, 0, 0 }, 0, sizeof(CHANGELOG_USERS) - 1,
1636 { "fld", { FID_SEQ_LOCAL_FILE, FLD_INDEX_OID, 0 }, OLF_SHOW_NAME,
1637 sizeof("fld") - 1, NULL, NULL },
1640 { LAST_RCVD, { FID_SEQ_LOCAL_FILE, LAST_RECV_OID, 0 }, OLF_SHOW_NAME,
1641 sizeof(LAST_RCVD) - 1, NULL, NULL },
1644 { REPLY_DATA, { FID_SEQ_LOCAL_FILE, REPLY_DATA_OID, 0 }, OLF_SHOW_NAME,
1645 sizeof(REPLY_DATA) - 1, NULL, NULL },
1648 { LOV_OBJID, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OID, 0 }, OLF_SHOW_NAME,
1649 sizeof(LOV_OBJID) - 1, NULL, NULL },
1652 { LOV_OBJSEQ, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OSEQ, 0 },
1653 OLF_SHOW_NAME, sizeof(LOV_OBJSEQ) - 1, NULL, NULL },
1656 { QMT_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, sizeof(QMT_DIR) - 1,
1657 osd_ios_general_scan, osd_ios_varfid_fill },
1660 { QSD_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, sizeof(QSD_DIR) - 1,
1661 osd_ios_general_scan, osd_ios_varfid_fill },
1664 { "seq_ctl", { FID_SEQ_LOCAL_FILE, FID_SEQ_CTL_OID, 0 },
1665 OLF_SHOW_NAME, sizeof("seq_ctl") - 1, NULL, NULL },
1668 { "seq_srv", { FID_SEQ_LOCAL_FILE, FID_SEQ_SRV_OID, 0 },
1669 OLF_SHOW_NAME, sizeof("seq_srv") - 1, NULL, NULL },
1672 { HEALTH_CHECK, { FID_SEQ_LOCAL_FILE, OFD_HEALTH_CHECK_OID, 0 },
1673 OLF_SHOW_NAME, sizeof(HEALTH_CHECK) - 1, NULL, NULL },
1676 { LFSCK_DIR, { 0, 0, 0 }, 0, sizeof(LFSCK_DIR) - 1,
1677 osd_ios_general_scan, osd_ios_varfid_fill },
1679 /* lfsck_bookmark */
1680 { LFSCK_BOOKMARK, { 0, 0, 0 }, 0, sizeof(LFSCK_BOOKMARK) - 1,
1684 { LFSCK_LAYOUT, { 0, 0, 0 }, 0, sizeof(LFSCK_LAYOUT) - 1,
1687 /* lfsck_namespace */
1688 { LFSCK_NAMESPACE, { 0, 0, 0 }, 0, sizeof(LFSCK_NAMESPACE) - 1,
1691 /* OBJECTS, upgrade from old device */
1692 { OBJECTS, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, sizeof(OBJECTS) - 1,
1693 osd_ios_OBJECTS_scan, NULL },
1695 /* lquota_v2.user, upgrade from old device */
1696 { "lquota_v2.user", { 0, 0, 0 }, 0, sizeof("lquota_v2.user") - 1,
1699 /* lquota_v2.group, upgrade from old device */
1700 { "lquota_v2.group", { 0, 0, 0 }, 0, sizeof("lquota_v2.group") - 1,
1703 /* LAST_GROUP, upgrade from old device */
1704 { "LAST_GROUP", { FID_SEQ_LOCAL_FILE, OFD_LAST_GROUP_OID, 0 },
1705 OLF_SHOW_NAME, sizeof("LAST_GROUP") - 1, NULL, NULL },
1707 /* committed batchid for cross-MDT operation */
1708 { "BATCHID", { FID_SEQ_LOCAL_FILE, BATCHID_COMMITTED_OID, 0 },
1709 OLF_SHOW_NAME, sizeof("BATCHID") - 1, NULL, NULL },
1711 /* OSP update logs update_log{_dir} use f_seq = FID_SEQ_UPDATE_LOG{_DIR}
1712 * and f_oid = index for their log files. See lu_update_log{_dir}_fid()
1713 * for more details. */
1716 { "update_log", { FID_SEQ_UPDATE_LOG, 0, 0 },
1717 OLF_SHOW_NAME | OLF_IDX_IN_FID, sizeof("update_log") - 1,
1720 /* update_log_dir */
1721 { "update_log_dir", { FID_SEQ_UPDATE_LOG_DIR, 0, 0 },
1722 OLF_SHOW_NAME | OLF_SCAN_SUBITEMS | OLF_IDX_IN_FID,
1723 sizeof("update_log_dir") - 1,
1724 osd_ios_general_scan, osd_ios_uld_fill },
1727 { "lost+found", { FID_SEQ_LOCAL_FILE, OSD_LPF_OID, 0 },
1728 OLF_SCAN_SUBITEMS, sizeof("lost+found") - 1,
1729 osd_ios_general_scan, osd_ios_lf_fill },
1731 { NULL, { 0, 0, 0 }, 0, 0, NULL, NULL }
1734 /* Add the new introduced files under .lustre/ in the list in the future. */
1735 static const struct osd_lf_map osd_dl_maps[] = {
1737 { "fid", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_OBF, 0 }, 0,
1738 sizeof("fid") - 1, NULL, NULL },
1740 /* .lustre/lost+found */
1741 { "lost+found", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_LPF, 0 }, 0,
1742 sizeof("lost+found") - 1, NULL, NULL },
1744 { NULL, { 0, 0, 0 }, 0, 0, NULL, NULL }
1747 struct osd_ios_item {
1748 struct list_head oii_list;
1749 struct dentry *oii_dentry;
1750 scandir_t oii_scandir;
1751 filldir_t oii_filldir;
1754 struct osd_ios_filldir_buf {
1755 #ifdef HAVE_DIR_CONTEXT
1756 /* please keep it as first member */
1757 struct dir_context ctx;
1759 struct osd_thread_info *oifb_info;
1760 struct osd_device *oifb_dev;
1761 struct dentry *oifb_dentry;
1764 static inline struct dentry *
1765 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1767 struct dentry *dentry;
1769 dentry = ll_lookup_one_len(name, parent, namelen);
1770 if (IS_ERR(dentry)) {
1771 int rc = PTR_ERR(dentry);
1774 CERROR("Fail to find %.*s in %.*s (%lu/%u): rc = %d\n",
1775 namelen, name, parent->d_name.len,
1776 parent->d_name.name, parent->d_inode->i_ino,
1777 parent->d_inode->i_generation, rc);
1782 if (dentry->d_inode == NULL) {
1784 return ERR_PTR(-ENOENT);
1791 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1792 scandir_t scandir, filldir_t filldir)
1794 struct osd_ios_item *item;
1797 OBD_ALLOC_PTR(item);
1801 INIT_LIST_HEAD(&item->oii_list);
1802 item->oii_dentry = dget(dentry);
1803 item->oii_scandir = scandir;
1804 item->oii_filldir = filldir;
1805 list_add_tail(&item->oii_list, &dev->od_ios_list);
1811 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
1813 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
1814 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
1815 * reference the inode, or fixed if it is missing or references another inode.
1818 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
1819 struct inode *inode, const struct lu_fid *fid, int flags)
1821 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1822 struct osd_inode_id *id = &info->oti_id;
1823 struct osd_inode_id *id2 = &info->oti_id2;
1824 struct osd_scrub *scrub = &dev->od_scrub;
1825 struct scrub_file *sf = &scrub->os_file;
1830 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
1831 if (rc != 0 && rc != -ENODATA) {
1832 CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
1833 "rc = %d\n", osd_name(dev), rc);
1838 osd_id_gen(id, inode->i_ino, inode->i_generation);
1839 if (rc == -ENODATA) {
1840 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID) {
1841 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
1844 if (flags & OLF_IDX_IN_FID) {
1845 LASSERT(dev->od_index >= 0);
1847 tfid.f_oid = dev->od_index;
1850 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
1852 CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
1853 "scrub: rc = %d\n", osd_name(dev), rc);
1858 if (lma->lma_compat & LMAC_NOT_IN_OI)
1861 tfid = lma->lma_self_fid;
1864 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
1869 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1870 DTO_INDEX_INSERT, true, 0, NULL);
1877 if (osd_id_eq_strict(id, id2))
1880 if (!(sf->sf_flags & SF_INCONSISTENT)) {
1881 osd_scrub_file_reset(scrub,
1882 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1884 rc = osd_scrub_file_store(scrub);
1889 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1890 DTO_INDEX_UPDATE, true, 0, NULL);
1898 * It scans the /lost+found, and for the OST-object (with filter_fid
1899 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
1901 #ifdef HAVE_FILLDIR_USE_CTX
1902 static int osd_ios_lf_fill(struct dir_context *buf,
1904 static int osd_ios_lf_fill(void *buf,
1906 const char *name, int namelen,
1907 loff_t offset, __u64 ino, unsigned d_type)
1909 struct osd_ios_filldir_buf *fill_buf =
1910 (struct osd_ios_filldir_buf *)buf;
1911 struct osd_thread_info *info = fill_buf->oifb_info;
1912 struct osd_device *dev = fill_buf->oifb_dev;
1913 struct lu_fid *fid = &info->oti_fid;
1914 struct osd_scrub *scrub = &dev->od_scrub;
1915 struct dentry *parent = fill_buf->oifb_dentry;
1916 struct dentry *child;
1917 struct inode *dir = parent->d_inode;
1918 struct inode *inode;
1922 /* skip any '.' started names */
1926 scrub->os_lf_scanned++;
1927 child = osd_ios_lookup_one_len(name, parent, namelen);
1928 if (IS_ERR(child)) {
1929 CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
1930 osd_name(dev), namelen, name, (int)PTR_ERR(child));
1934 inode = child->d_inode;
1935 if (S_ISDIR(inode->i_mode)) {
1936 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1939 CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
1940 "rc = %d\n", osd_name(dev), namelen, name, rc);
1944 if (!S_ISREG(inode->i_mode))
1947 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
1948 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
1949 rc = osd_obj_map_recover(info, dev, dir, child, fid);
1951 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
1952 "/lost+found.\n", namelen, name, PFID(fid));
1953 scrub->os_lf_repaired++;
1955 CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
1957 osd_name(dev), namelen, name, PFID(fid), rc);
1961 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
1962 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
1963 * can process them in furtuer. */
1969 scrub->os_lf_failed++;
1971 /* skip the failure to make the scanning to continue. */
1975 #ifdef HAVE_FILLDIR_USE_CTX
1976 static int osd_ios_varfid_fill(struct dir_context *buf,
1978 static int osd_ios_varfid_fill(void *buf,
1980 const char *name, int namelen,
1981 loff_t offset, __u64 ino, unsigned d_type)
1983 struct osd_ios_filldir_buf *fill_buf =
1984 (struct osd_ios_filldir_buf *)buf;
1985 struct osd_device *dev = fill_buf->oifb_dev;
1986 struct dentry *child;
1990 /* skip any '.' started names */
1994 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1996 RETURN(PTR_ERR(child));
1998 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2000 if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
2001 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2002 osd_ios_varfid_fill);
2008 #ifdef HAVE_FILLDIR_USE_CTX
2009 static int osd_ios_dl_fill(struct dir_context *buf,
2011 static int osd_ios_dl_fill(void *buf,
2013 const char *name, int namelen,
2014 loff_t offset, __u64 ino, unsigned d_type)
2016 struct osd_ios_filldir_buf *fill_buf =
2017 (struct osd_ios_filldir_buf *)buf;
2018 struct osd_device *dev = fill_buf->oifb_dev;
2019 const struct osd_lf_map *map;
2020 struct dentry *child;
2024 /* skip any '.' started names */
2028 for (map = osd_dl_maps; map->olm_name != NULL; map++) {
2029 if (map->olm_namelen != namelen)
2032 if (strncmp(map->olm_name, name, namelen) == 0)
2036 if (map->olm_name == NULL)
2039 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2041 RETURN(PTR_ERR(child));
2043 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2044 &map->olm_fid, map->olm_flags);
2050 #ifdef HAVE_FILLDIR_USE_CTX
2051 static int osd_ios_uld_fill(struct dir_context *buf,
2053 static int osd_ios_uld_fill(void *buf,
2055 const char *name, int namelen,
2056 loff_t offset, __u64 ino, unsigned d_type)
2058 struct osd_ios_filldir_buf *fill_buf =
2059 (struct osd_ios_filldir_buf *)buf;
2060 struct dentry *child;
2065 /* skip any non-DFID format name */
2069 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2071 RETURN(PTR_ERR(child));
2073 /* skip the start '[' */
2074 sscanf(&name[1], SFID, RFID(&tfid));
2075 if (fid_is_sane(&tfid))
2076 rc = osd_ios_scan_one(fill_buf->oifb_info, fill_buf->oifb_dev,
2077 child->d_inode, &tfid, 0);
2085 #ifdef HAVE_FILLDIR_USE_CTX
2086 static int osd_ios_root_fill(struct dir_context *buf,
2088 static int osd_ios_root_fill(void *buf,
2090 const char *name, int namelen,
2091 loff_t offset, __u64 ino, unsigned d_type)
2093 struct osd_ios_filldir_buf *fill_buf =
2094 (struct osd_ios_filldir_buf *)buf;
2095 struct osd_device *dev = fill_buf->oifb_dev;
2096 const struct osd_lf_map *map;
2097 struct dentry *child;
2101 /* skip any '.' started names */
2105 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
2106 if (map->olm_namelen != namelen)
2109 if (strncmp(map->olm_name, name, namelen) == 0)
2113 if (map->olm_name == NULL)
2116 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
2118 RETURN(PTR_ERR(child));
2120 if (!(map->olm_flags & OLF_NO_OI))
2121 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
2122 &map->olm_fid, map->olm_flags);
2123 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
2124 rc = osd_ios_new_item(dev, child, map->olm_scandir,
2132 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
2133 struct dentry *dentry, filldir_t filldir)
2135 struct osd_ios_filldir_buf buf = {
2136 #ifdef HAVE_DIR_CONTEXT
2137 .ctx.actor = filldir,
2141 .oifb_dentry = dentry };
2142 struct file *filp = &info->oti_file;
2143 struct inode *inode = dentry->d_inode;
2144 const struct file_operations *fops = inode->i_fop;
2148 LASSERT(filldir != NULL);
2151 filp->f_path.dentry = dentry;
2152 filp->f_mode = FMODE_64BITHASH;
2153 filp->f_mapping = inode->i_mapping;
2155 filp->private_data = NULL;
2156 set_file_inode(filp, inode);
2158 #ifdef HAVE_DIR_CONTEXT
2159 buf.ctx.pos = filp->f_pos;
2160 rc = fops->iterate(filp, &buf.ctx);
2161 filp->f_pos = buf.ctx.pos;
2163 rc = fops->readdir(filp, &buf, filldir);
2165 fops->release(inode, filp);
2171 osd_ios_ROOT_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 /* It is existing MDT0 device. We only allow the case of object without
2181 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
2182 * can generate IGIF mode FID for the object and related OI mapping. If
2183 * it is on other MDTs, then becuase file-level backup/restore, related
2184 * OI mapping may be invalid already, we do not know which is the right
2185 * FID for the object. We only allow IGIF objects to reside on the MDT0.
2187 * XXX: For the case of object on non-MDT0 device with neither LMA nor
2188 * "fid" xattr, then something crashed. We cannot re-generate the
2189 * FID directly, instead, the OI scrub will scan the OI structure
2190 * and try to re-generate the LMA from the OI mapping. But if the
2191 * OI mapping crashed or lost also, then we have to give up under
2192 * double failure cases. */
2193 scrub->os_convert_igif = 1;
2194 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
2195 strlen(dot_lustre_name));
2196 if (IS_ERR(child)) {
2197 rc = PTR_ERR(child);
2198 if (rc == -ENOENT) {
2199 /* It is 1.8 MDT device. */
2200 if (!(sf->sf_flags & SF_UPGRADE)) {
2201 osd_scrub_file_reset(scrub,
2202 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
2204 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2205 rc = osd_scrub_file_store(scrub);
2211 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
2212 * so the client will get IGIF for the ".lustre" object when
2215 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
2216 * it does not know whether there are some old clients cached
2217 * the ".lustre" IGIF during the upgrading. Two choices:
2219 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
2220 * It will allow the old connected clients to access the
2221 * ".lustre" with cached IGIF. But it will cause others
2222 * on the MDT failed to check "fid_is_dot_lustre()".
2224 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
2225 * for ".lustre" in spite of whether there are some clients
2226 * cached the ".lustre" IGIF or not. It enables the check
2227 * "fid_is_dot_lustre()" on the MDT, although it will cause
2228 * that the old connected clients cannot access the ".lustre"
2229 * with the cached IGIF.
2231 * Usually, it is rare case for the old connected clients
2232 * to access the ".lustre" with cached IGIF. So we prefer
2233 * to the solution 2). */
2234 rc = osd_ios_scan_one(info, dev, child->d_inode,
2235 &LU_DOT_LUSTRE_FID, 0);
2237 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
2246 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
2247 struct dentry *dentry, filldir_t filldir)
2249 struct osd_scrub *scrub = &dev->od_scrub;
2250 struct scrub_file *sf = &scrub->os_file;
2251 struct dentry *child;
2255 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
2256 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
2257 rc = osd_scrub_file_store(scrub);
2262 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
2263 if (!IS_ERR(child)) {
2264 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2267 rc = PTR_ERR(child);
2270 if (rc != 0 && rc != -ENOENT)
2273 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
2274 if (!IS_ERR(child)) {
2275 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
2278 rc = PTR_ERR(child);
2287 static int osd_initial_OI_scrub(struct osd_thread_info *info,
2288 struct osd_device *dev)
2290 struct osd_ios_item *item = NULL;
2291 scandir_t scandir = osd_ios_general_scan;
2292 filldir_t filldir = osd_ios_root_fill;
2293 struct dentry *dentry = osd_sb(dev)->s_root;
2294 const struct osd_lf_map *map = osd_lf_maps;
2298 /* Lookup IGIF in OI by force for initial OI scrub. */
2299 dev->od_igif_inoi = 1;
2302 rc = scandir(info, dev, dentry, filldir);
2304 dput(item->oii_dentry);
2311 if (list_empty(&dev->od_ios_list))
2314 item = list_entry(dev->od_ios_list.next,
2315 struct osd_ios_item, oii_list);
2316 list_del_init(&item->oii_list);
2318 LASSERT(item->oii_scandir != NULL);
2319 scandir = item->oii_scandir;
2320 filldir = item->oii_filldir;
2321 dentry = item->oii_dentry;
2324 while (!list_empty(&dev->od_ios_list)) {
2325 item = list_entry(dev->od_ios_list.next,
2326 struct osd_ios_item, oii_list);
2327 list_del_init(&item->oii_list);
2328 dput(item->oii_dentry);
2335 /* There maybe the case that the object has been removed, but its OI
2336 * mapping is still in the OI file, such as the "CATALOGS" after MDT
2337 * file-level backup/restore. So here cleanup the stale OI mappings. */
2338 while (map->olm_name != NULL) {
2339 struct dentry *child;
2341 if (fid_is_zero(&map->olm_fid)) {
2346 child = osd_ios_lookup_one_len(map->olm_name,
2347 osd_sb(dev)->s_root,
2351 else if (PTR_ERR(child) == -ENOENT)
2352 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
2353 NULL, DTO_INDEX_DELETE,
2361 char *osd_lf_fid2name(const struct lu_fid *fid)
2363 const struct osd_lf_map *map = osd_lf_maps;
2365 while (map->olm_name != NULL) {
2366 if (!lu_fid_eq(fid, &map->olm_fid)) {
2371 if (map->olm_flags & OLF_SHOW_NAME)
2372 return map->olm_name;
2380 /* OI scrub start/stop */
2382 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
2384 struct osd_scrub *scrub = &dev->od_scrub;
2385 struct ptlrpc_thread *thread = &scrub->os_thread;
2386 struct l_wait_info lwi = { 0 };
2387 struct task_struct *task;
2391 /* os_lock: sync status between stop and scrub thread */
2392 spin_lock(&scrub->os_lock);
2395 if (thread_is_running(thread)) {
2396 spin_unlock(&scrub->os_lock);
2397 if (!(scrub->os_file.sf_flags & SF_AUTO ||
2398 scrub->os_partial_scan) ||
2399 (flags & SS_AUTO_PARTIAL))
2402 osd_scrub_join(dev, flags, false);
2403 spin_lock(&scrub->os_lock);
2404 if (!thread_is_running(thread))
2407 spin_unlock(&scrub->os_lock);
2411 if (unlikely(thread_is_stopping(thread))) {
2412 spin_unlock(&scrub->os_lock);
2413 l_wait_event(thread->t_ctl_waitq,
2414 thread_is_stopped(thread),
2416 spin_lock(&scrub->os_lock);
2419 spin_unlock(&scrub->os_lock);
2421 if (scrub->os_file.sf_status == SS_COMPLETED) {
2422 if (!(flags & SS_SET_FAILOUT))
2423 flags |= SS_CLEAR_FAILOUT;
2425 if (!(flags & SS_SET_DRYRUN))
2426 flags |= SS_CLEAR_DRYRUN;
2431 scrub->os_start_flags = flags;
2432 thread_set_flags(thread, 0);
2433 task = kthread_run(osd_scrub_main, dev, "OI_scrub");
2436 CERROR("%.16s: cannot start iteration thread: rc = %d\n",
2437 osd_scrub2name(scrub), rc);
2441 l_wait_event(thread->t_ctl_waitq,
2442 thread_is_running(thread) || thread_is_stopped(thread),
2448 int osd_scrub_start(struct osd_device *dev, __u32 flags)
2453 /* od_otable_mutex: prevent curcurrent start/stop */
2454 mutex_lock(&dev->od_otable_mutex);
2455 rc = do_osd_scrub_start(dev, flags);
2456 mutex_unlock(&dev->od_otable_mutex);
2458 RETURN(rc == -EALREADY ? 0 : rc);
2461 static void do_osd_scrub_stop(struct osd_scrub *scrub)
2463 struct ptlrpc_thread *thread = &scrub->os_thread;
2464 struct l_wait_info lwi = { 0 };
2466 /* os_lock: sync status between stop and scrub thread */
2467 spin_lock(&scrub->os_lock);
2468 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
2469 thread_set_flags(thread, SVC_STOPPING);
2470 spin_unlock(&scrub->os_lock);
2471 wake_up_all(&thread->t_ctl_waitq);
2472 l_wait_event(thread->t_ctl_waitq,
2473 thread_is_stopped(thread),
2475 /* Do not skip the last lock/unlock, which can guarantee that
2476 * the caller cannot return until the OI scrub thread exit. */
2477 spin_lock(&scrub->os_lock);
2479 spin_unlock(&scrub->os_lock);
2482 static void osd_scrub_stop(struct osd_device *dev)
2484 /* od_otable_mutex: prevent curcurrent start/stop */
2485 mutex_lock(&dev->od_otable_mutex);
2486 dev->od_scrub.os_paused = 1;
2487 do_osd_scrub_stop(&dev->od_scrub);
2488 mutex_unlock(&dev->od_otable_mutex);
2491 /* OI scrub setup/cleanup */
2493 static const char osd_scrub_name[] = "OI_scrub";
2495 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2497 struct osd_thread_info *info = osd_oti_get(env);
2498 struct osd_scrub *scrub = &dev->od_scrub;
2499 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2500 struct scrub_file *sf = &scrub->os_file;
2501 struct super_block *sb = osd_sb(dev);
2502 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2503 struct lvfs_run_ctxt saved;
2505 struct inode *inode;
2506 struct lu_fid *fid = &info->oti_fid;
2508 bool restored = false;
2512 memset(scrub, 0, sizeof(*scrub));
2513 OBD_SET_CTXT_MAGIC(ctxt);
2514 ctxt->pwdmnt = dev->od_mnt;
2515 ctxt->pwd = dev->od_mnt->mnt_root;
2516 ctxt->fs = get_ds();
2518 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2519 init_rwsem(&scrub->os_rwsem);
2520 spin_lock_init(&scrub->os_lock);
2521 INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2523 push_ctxt(&saved, ctxt);
2524 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2526 pop_ctxt(&saved, ctxt);
2527 RETURN(PTR_ERR(filp));
2530 inode = file_inode(filp);
2531 /* 'What the @fid is' is not imporatant, because the object
2532 * has no OI mapping, and only is visible inside the OSD.*/
2533 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2534 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2536 filp_close(filp, NULL);
2537 pop_ctxt(&saved, ctxt);
2541 scrub->os_inode = igrab(inode);
2542 filp_close(filp, NULL);
2543 pop_ctxt(&saved, ctxt);
2545 rc = osd_scrub_file_load(scrub);
2546 if (rc == -ENOENT) {
2547 osd_scrub_file_init(scrub, es->s_uuid);
2548 /* If the "/O" dir does not exist when mount (indicated by
2549 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2550 * then it is quite probably that the device is a new one,
2551 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2553 * For the rare case that "/O" and "OI_scrub" both lost on
2554 * an old device, it can be found and cleared later.
2556 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2557 * need to check "filter_fid_old" and to convert it to
2558 * "filter_fid" for each object, and all the IGIF should
2559 * have their FID mapping in OI files already. */
2560 if (dev->od_maybe_new)
2561 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2563 } else if (rc != 0) {
2564 GOTO(cleanup_inode, rc);
2566 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2567 struct obd_uuid *old_uuid;
2568 struct obd_uuid *new_uuid;
2570 OBD_ALLOC_PTR(old_uuid);
2571 OBD_ALLOC_PTR(new_uuid);
2572 if (old_uuid == NULL || new_uuid == NULL) {
2573 CERROR("%.16s: UUID has been changed, but"
2574 "failed to allocate RAM for report\n",
2575 LDISKFS_SB(sb)->s_es->s_volume_name);
2577 class_uuid_unparse(sf->sf_uuid, old_uuid);
2578 class_uuid_unparse(es->s_uuid, new_uuid);
2579 CERROR("%.16s: UUID has been changed from "
2581 LDISKFS_SB(sb)->s_es->s_volume_name,
2582 old_uuid->uuid, new_uuid->uuid);
2584 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2587 if (old_uuid != NULL)
2588 OBD_FREE_PTR(old_uuid);
2589 if (new_uuid != NULL)
2590 OBD_FREE_PTR(new_uuid);
2591 } else if (sf->sf_status == SS_SCANNING) {
2592 sf->sf_status = SS_CRASHED;
2597 if (sf->sf_pos_last_checkpoint != 0)
2598 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2600 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2603 rc = osd_scrub_file_store(scrub);
2605 GOTO(cleanup_inode, rc);
2608 /* Initialize OI files. */
2609 rc = osd_oi_init(info, dev, restored);
2611 GOTO(cleanup_inode, rc);
2613 rc = osd_initial_OI_scrub(info, dev);
2615 GOTO(cleanup_oi, rc);
2617 if (sf->sf_flags & SF_UPGRADE ||
2618 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2619 sf->sf_success_count > 0)) {
2620 dev->od_igif_inoi = 0;
2621 dev->od_check_ff = dev->od_is_ost;
2623 dev->od_igif_inoi = 1;
2624 dev->od_check_ff = 0;
2627 if (sf->sf_flags & SF_INCONSISTENT)
2628 /* The 'od_igif_inoi' will be set under the
2630 * 1) new created system, or
2631 * 2) restored from file-level backup, or
2632 * 3) the upgrading completed.
2634 * The 'od_igif_inoi' may be cleared by OI scrub
2635 * later if found that the system is upgrading. */
2636 dev->od_igif_inoi = 1;
2638 if (!dev->od_noscrub &&
2639 ((sf->sf_status == SS_PAUSED) ||
2640 (sf->sf_status == SS_CRASHED &&
2641 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2642 SF_UPGRADE | SF_AUTO)) ||
2643 (sf->sf_status == SS_INIT &&
2644 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2646 rc = osd_scrub_start(dev, SS_AUTO_FULL);
2649 GOTO(cleanup_oi, rc);
2651 /* it is possible that dcache entries may keep objects after they are
2652 * deleted by OSD. While it looks safe this can cause object data to
2653 * stay until umount causing failures in tests calculating free space,
2654 * e.g. replay-ost-single. Since those dcache entries are not used
2655 * anymore let's just free them after use here */
2656 shrink_dcache_sb(sb);
2660 osd_oi_fini(info, dev);
2662 iput(scrub->os_inode);
2663 scrub->os_inode = NULL;
2668 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2670 struct osd_scrub *scrub = &dev->od_scrub;
2672 LASSERT(dev->od_otable_it == NULL);
2674 if (scrub->os_inode != NULL) {
2675 osd_scrub_stop(dev);
2676 iput(scrub->os_inode);
2677 scrub->os_inode = NULL;
2679 if (dev->od_oi_table != NULL)
2680 osd_oi_fini(osd_oti_get(env), dev);
2683 /* object table based iteration APIs */
2685 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2686 struct dt_object *dt, __u32 attr)
2688 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2689 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2690 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2691 struct osd_scrub *scrub = &dev->od_scrub;
2692 struct osd_otable_it *it;
2697 /* od_otable_mutex: prevent curcurrent init/fini */
2698 mutex_lock(&dev->od_otable_mutex);
2699 if (dev->od_otable_it != NULL)
2700 GOTO(out, it = ERR_PTR(-EALREADY));
2704 GOTO(out, it = ERR_PTR(-ENOMEM));
2706 dev->od_otable_it = it;
2708 it->ooi_cache.ooc_consumer_idx = -1;
2709 if (flags & DOIF_OUTUSED)
2710 it->ooi_used_outside = 1;
2712 if (flags & DOIF_RESET)
2715 if (valid & DOIV_ERROR_HANDLE) {
2716 if (flags & DOIF_FAILOUT)
2717 start |= SS_SET_FAILOUT;
2719 start |= SS_CLEAR_FAILOUT;
2722 if (valid & DOIV_DRYRUN) {
2723 if (flags & DOIF_DRYRUN)
2724 start |= SS_SET_DRYRUN;
2726 start |= SS_CLEAR_DRYRUN;
2729 rc = do_osd_scrub_start(dev, start & ~SS_AUTO_PARTIAL);
2730 if (rc < 0 && rc != -EALREADY) {
2731 dev->od_otable_it = NULL;
2733 GOTO(out, it = ERR_PTR(rc));
2736 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2741 mutex_unlock(&dev->od_otable_mutex);
2742 return (struct dt_it *)it;
2745 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2747 struct osd_otable_it *it = (struct osd_otable_it *)di;
2748 struct osd_device *dev = it->ooi_dev;
2750 /* od_otable_mutex: prevent curcurrent init/fini */
2751 mutex_lock(&dev->od_otable_mutex);
2752 do_osd_scrub_stop(&dev->od_scrub);
2753 LASSERT(dev->od_otable_it == it);
2755 dev->od_otable_it = NULL;
2756 mutex_unlock(&dev->od_otable_mutex);
2760 static int osd_otable_it_get(const struct lu_env *env,
2761 struct dt_it *di, const struct dt_key *key)
2766 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2771 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2773 spin_lock(&scrub->os_lock);
2774 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2775 scrub->os_waiting ||
2776 !thread_is_running(&scrub->os_thread))
2777 it->ooi_waiting = 0;
2779 it->ooi_waiting = 1;
2780 spin_unlock(&scrub->os_lock);
2782 return !it->ooi_waiting;
2785 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2787 struct osd_otable_it *it = (struct osd_otable_it *)di;
2788 struct osd_device *dev = it->ooi_dev;
2789 struct osd_scrub *scrub = &dev->od_scrub;
2790 struct osd_otable_cache *ooc = &it->ooi_cache;
2791 struct ptlrpc_thread *thread = &scrub->os_thread;
2792 struct l_wait_info lwi = { 0 };
2796 LASSERT(it->ooi_user_ready);
2799 if (!thread_is_running(thread) && !it->ooi_used_outside)
2802 if (ooc->ooc_cached_items > 0) {
2803 ooc->ooc_cached_items--;
2804 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
2805 ~OSD_OTABLE_IT_CACHE_MASK;
2809 if (it->ooi_all_cached) {
2810 l_wait_event(thread->t_ctl_waitq,
2811 !thread_is_running(thread),
2816 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
2817 spin_lock(&scrub->os_lock);
2818 scrub->os_waiting = 0;
2819 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2820 spin_unlock(&scrub->os_lock);
2823 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
2824 l_wait_event(thread->t_ctl_waitq,
2825 osd_otable_it_wakeup(scrub, it),
2828 if (!thread_is_running(thread) && !it->ooi_used_outside)
2831 rc = osd_otable_it_preload(env, it);
2838 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
2839 const struct dt_it *di)
2844 static int osd_otable_it_key_size(const struct lu_env *env,
2845 const struct dt_it *di)
2847 return sizeof(__u64);
2850 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
2851 struct dt_rec *rec, __u32 attr)
2853 struct osd_otable_it *it = (struct osd_otable_it *)di;
2854 struct osd_otable_cache *ooc = &it->ooi_cache;
2856 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
2858 /* Filter out Invald FID already. */
2859 LASSERTF(fid_is_sane((struct lu_fid *)rec),
2860 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
2861 PFID((struct lu_fid *)rec),
2862 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
2867 static __u64 osd_otable_it_store(const struct lu_env *env,
2868 const struct dt_it *di)
2870 struct osd_otable_it *it = (struct osd_otable_it *)di;
2871 struct osd_otable_cache *ooc = &it->ooi_cache;
2874 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
2875 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
2877 hash = ooc->ooc_pos_preload;
2882 * Set the OSD layer iteration start position as the specified hash.
2884 static int osd_otable_it_load(const struct lu_env *env,
2885 const struct dt_it *di, __u64 hash)
2887 struct osd_otable_it *it = (struct osd_otable_it *)di;
2888 struct osd_device *dev = it->ooi_dev;
2889 struct osd_otable_cache *ooc = &it->ooi_cache;
2890 struct osd_scrub *scrub = &dev->od_scrub;
2894 /* Forbid to set iteration position after iteration started. */
2895 if (it->ooi_user_ready)
2898 LASSERT(!scrub->os_partial_scan);
2900 if (hash > OSD_OTABLE_MAX_HASH)
2901 hash = OSD_OTABLE_MAX_HASH;
2903 ooc->ooc_pos_preload = hash;
2904 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
2905 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
2907 it->ooi_user_ready = 1;
2908 if (!scrub->os_full_speed)
2909 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2911 /* Unplug OSD layer iteration by the first next() call. */
2912 rc = osd_otable_it_next(env, (struct dt_it *)it);
2917 static int osd_otable_it_key_rec(const struct lu_env *env,
2918 const struct dt_it *di, void *key_rec)
2923 const struct dt_index_operations osd_otable_ops = {
2925 .init = osd_otable_it_init,
2926 .fini = osd_otable_it_fini,
2927 .get = osd_otable_it_get,
2928 .put = osd_otable_it_put,
2929 .next = osd_otable_it_next,
2930 .key = osd_otable_it_key,
2931 .key_size = osd_otable_it_key_size,
2932 .rec = osd_otable_it_rec,
2933 .store = osd_otable_it_store,
2934 .load = osd_otable_it_load,
2935 .key_rec = osd_otable_it_key_rec,
2939 /* high priority inconsistent items list APIs */
2941 #define SCRUB_BAD_OIMAP_DECAY_INTERVAL 60
2943 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
2946 struct osd_inconsistent_item *oii;
2947 struct osd_scrub *scrub = &dev->od_scrub;
2948 struct ptlrpc_thread *thread = &scrub->os_thread;
2953 if (unlikely(oii == NULL))
2956 INIT_LIST_HEAD(&oii->oii_list);
2957 oii->oii_cache = *oic;
2958 oii->oii_insert = insert;
2960 if (scrub->os_partial_scan) {
2961 __u64 now = cfs_time_current_sec();
2963 /* If there haven't been errors in a long time,
2964 * decay old count until either the errors are
2965 * gone or we reach the current interval. */
2966 while (unlikely(scrub->os_bad_oimap_count > 0 &&
2967 scrub->os_bad_oimap_time +
2968 SCRUB_BAD_OIMAP_DECAY_INTERVAL < now)) {
2969 scrub->os_bad_oimap_count >>= 1;
2970 scrub->os_bad_oimap_time +=
2971 SCRUB_BAD_OIMAP_DECAY_INTERVAL;
2974 scrub->os_bad_oimap_time = now;
2975 if (++scrub->os_bad_oimap_count >
2976 dev->od_full_scrub_threshold_rate)
2977 scrub->os_full_scrub = 1;
2980 spin_lock(&scrub->os_lock);
2981 if (unlikely(!thread_is_running(thread))) {
2982 spin_unlock(&scrub->os_lock);
2987 if (list_empty(&scrub->os_inconsistent_items))
2989 list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
2990 spin_unlock(&scrub->os_lock);
2993 wake_up_all(&thread->t_ctl_waitq);
2998 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
2999 struct osd_inode_id *id)
3001 struct osd_scrub *scrub = &dev->od_scrub;
3002 struct osd_inconsistent_item *oii;
3005 spin_lock(&scrub->os_lock);
3006 list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
3007 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
3008 *id = oii->oii_cache.oic_lid;
3009 spin_unlock(&scrub->os_lock);
3013 spin_unlock(&scrub->os_lock);
3020 static const char *scrub_status_names[] = {
3031 static const char *scrub_flags_names[] = {
3039 static const char *scrub_param_names[] = {
3045 static void scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
3051 seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
3053 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
3056 seq_printf(m, "%s%c", names[i],
3057 bits != 0 ? ',' : '\n');
3062 static void scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
3065 seq_printf(m, "%s: "LPU64" seconds\n", prefix,
3066 cfs_time_current_sec() - time);
3068 seq_printf(m, "%s: N/A\n", prefix);
3071 static void scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
3074 seq_printf(m, "%s: "LPU64"\n", prefix, pos);
3076 seq_printf(m, "%s: N/A\n", prefix);
3079 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
3081 struct osd_scrub *scrub = &dev->od_scrub;
3082 struct scrub_file *sf = &scrub->os_file;
3086 down_read(&scrub->os_rwsem);
3087 seq_printf(m, "name: OI_scrub\n"
3091 sf->sf_magic, (int)sf->sf_oi_count,
3092 scrub_status_names[sf->sf_status]);
3094 scrub_bits_dump(m, sf->sf_flags, scrub_flags_names, "flags");
3096 scrub_bits_dump(m, sf->sf_param, scrub_param_names, "param");
3098 scrub_time_dump(m, sf->sf_time_last_complete,
3099 "time_since_last_completed");
3101 scrub_time_dump(m, sf->sf_time_latest_start,
3102 "time_since_latest_start");
3104 scrub_time_dump(m, sf->sf_time_last_checkpoint,
3105 "time_since_last_checkpoint");
3107 scrub_pos_dump(m, sf->sf_pos_latest_start,
3108 "latest_start_position");
3110 scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
3111 "last_checkpoint_position");
3113 scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
3114 "first_failure_position");
3116 checked = sf->sf_items_checked + scrub->os_new_checked;
3117 seq_printf(m, "checked: "LPU64"\n"
3118 "updated: "LPU64"\n"
3120 "prior_updated: "LPU64"\n"
3121 "noscrub: "LPU64"\n"
3123 "success_count: %u\n",
3124 checked, sf->sf_items_updated, sf->sf_items_failed,
3125 sf->sf_items_updated_prior, sf->sf_items_noscrub,
3126 sf->sf_items_igif, sf->sf_success_count);
3129 if (thread_is_running(&scrub->os_thread)) {
3130 cfs_duration_t duration = cfs_time_current() -
3131 scrub->os_time_last_checkpoint;
3132 __u64 new_checked = msecs_to_jiffies(scrub->os_new_checked *
3134 __u32 rtime = sf->sf_run_time +
3135 cfs_duration_sec(duration + HALF_SEC);
3138 do_div(new_checked, duration);
3140 do_div(speed, rtime);
3141 seq_printf(m, "run_time: %u seconds\n"
3142 "average_speed: "LPU64" objects/sec\n"
3143 "real-time_speed: "LPU64" objects/sec\n"
3144 "current_position: %u\n"
3145 "lf_scanned: "LPU64"\n"
3146 "lf_repaired: "LPU64"\n"
3147 "lf_failed: "LPU64"\n",
3148 rtime, speed, new_checked, scrub->os_pos_current,
3149 scrub->os_lf_scanned, scrub->os_lf_repaired,
3150 scrub->os_lf_failed);
3152 if (sf->sf_run_time != 0)
3153 do_div(speed, sf->sf_run_time);
3154 seq_printf(m, "run_time: %u seconds\n"
3155 "average_speed: "LPU64" objects/sec\n"
3156 "real-time_speed: N/A\n"
3157 "current_position: N/A\n"
3158 "lf_scanned: "LPU64"\n"
3159 "lf_repaired: "LPU64"\n"
3160 "lf_failed: "LPU64"\n",
3161 sf->sf_run_time, speed, scrub->os_lf_scanned,
3162 scrub->os_lf_repaired, scrub->os_lf_failed);
3165 up_read(&scrub->os_rwsem);