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, 2013, Intel Corporation.
26 * lustre/osd-ldiskfs/osd_scrub.c
28 * Top-level entry points into osd module
30 * The OI scrub is used for rebuilding Object Index files when restores MDT from
33 * The otable based iterator scans ldiskfs inode table to feed up layer LFSCK.
35 * Author: Fan Yong <yong.fan@whamcloud.com>
38 #define DEBUG_SUBSYSTEM S_LFSCK
40 #include <lustre/lustre_idl.h>
41 #include <lustre_disk.h>
42 #include <dt_object.h>
43 #include <linux/xattr.h>
45 #include "osd_internal.h"
47 #include "osd_scrub.h"
49 #define HALF_SEC (HZ >> 1)
51 #define OSD_OTABLE_MAX_HASH 0x00000000ffffffffULL
53 #define SCRUB_NEXT_BREAK 1 /* exit current loop and process next group */
54 #define SCRUB_NEXT_CONTINUE 2 /* skip current object and process next bit */
55 #define SCRUB_NEXT_EXIT 3 /* exit all the loops */
56 #define SCRUB_NEXT_WAIT 4 /* wait for free cache slot */
57 #define SCRUB_NEXT_CRASH 5 /* simulate system crash during OI scrub */
58 #define SCRUB_NEXT_FATAL 6 /* simulate failure during OI scrub */
59 #define SCRUB_NEXT_NOSCRUB 7 /* new created object, no scrub on it */
60 #define SCRUB_NEXT_NOLMA 8 /* the inode has no FID-in-LMA */
61 #define SCRUB_NEXT_OSTOBJ 9 /* for OST-object */
62 #define SCRUB_NEXT_OSTOBJ_OLD 10 /* old OST-object, no LMA or no FID-on-OST
67 static inline struct osd_device *osd_scrub2dev(struct osd_scrub *scrub)
69 return container_of0(scrub, struct osd_device, od_scrub);
72 static inline struct super_block *osd_scrub2sb(struct osd_scrub *scrub)
74 return osd_sb(osd_scrub2dev(scrub));
77 static inline int osd_scrub_has_window(struct osd_scrub *scrub,
78 struct osd_otable_cache *ooc)
80 return scrub->os_pos_current < ooc->ooc_pos_preload + SCRUB_WINDOW_SIZE;
83 static inline const char *osd_scrub2name(struct osd_scrub *scrub)
85 return LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name;
89 * update/insert/delete the specified OI mapping (@fid @id) according to the ops
91 * \retval 1, changed nothing
92 * \retval 0, changed successfully
93 * \retval -ve, on error
95 static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
96 struct osd_device *dev,
97 const struct lu_fid *fid,
98 const struct osd_inode_id *id,
100 enum oi_check_flags flags)
106 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN && !force)
109 /* DTO_INDEX_INSERT is enough for other two ops:
110 * delete/update, but save stack. */
111 th = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
112 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
115 CDEBUG(D_LFSCK, "%s: fail to start trans for scrub op %d "
116 DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
117 PFID(fid), id->oii_ino, id->oii_gen, rc);
122 case DTO_INDEX_UPDATE:
123 rc = osd_oi_update(info, dev, fid, id, th, flags);
124 if (unlikely(rc == -ENOENT)) {
125 /* Some unlink thread may removed the OI mapping. */
129 case DTO_INDEX_INSERT:
130 rc = osd_oi_insert(info, dev, fid, id, th, flags);
131 if (unlikely(rc == -EEXIST)) {
133 /* XXX: There are trouble things when adding OI
134 * mapping for IGIF object, which may cause
135 * multiple objects to be mapped to the same
136 * IGIF formatted FID. Consider the following
139 * 1) The MDT is upgrading from 1.8 device.
140 * The OI scrub generates IGIF FID1 for the
141 * OBJ1 and adds the OI mapping.
143 * 2) For some reason, the OI scrub does not
144 * process all the IGIF objects completely.
146 * 3) The MDT is backuped and restored against
149 * 4) When the MDT mounts up, the OI scrub will
150 * try to rebuild the OI files. For some IGIF
151 * object, OBJ2, which was not processed by the
152 * OI scrub before the backup/restore, and the
153 * new generated IGIF formatted FID may be just
154 * the FID1, the same as OBJ1.
156 * Under such case, the OI scrub cannot know how
157 * to generate new FID for the OBJ2.
159 * Currently, we do nothing for that. One possible
160 * solution is to generate new normal FID for the
163 * Anyway, it is rare, only exists in theory. */
166 case DTO_INDEX_DELETE:
167 rc = osd_oi_delete(info, dev, fid, th, flags);
169 /* It is normal that the unlink thread has removed the
170 * OI mapping already. */
175 LASSERTF(0, "Unexpected ops %d\n", ops);
179 ldiskfs_journal_stop(th);
181 CDEBUG(D_LFSCK, "%s: fail to refresh OI map for scrub op %d "
182 DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
183 PFID(fid), id->oii_ino, id->oii_gen, rc);
188 /* OI_scrub file ops */
190 static void osd_scrub_file_to_cpu(struct scrub_file *des,
191 struct scrub_file *src)
193 memcpy(des->sf_uuid, src->sf_uuid, 16);
194 des->sf_flags = le64_to_cpu(src->sf_flags);
195 des->sf_magic = le32_to_cpu(src->sf_magic);
196 des->sf_status = le16_to_cpu(src->sf_status);
197 des->sf_param = le16_to_cpu(src->sf_param);
198 des->sf_time_last_complete =
199 le64_to_cpu(src->sf_time_last_complete);
200 des->sf_time_latest_start =
201 le64_to_cpu(src->sf_time_latest_start);
202 des->sf_time_last_checkpoint =
203 le64_to_cpu(src->sf_time_last_checkpoint);
204 des->sf_pos_latest_start =
205 le64_to_cpu(src->sf_pos_latest_start);
206 des->sf_pos_last_checkpoint =
207 le64_to_cpu(src->sf_pos_last_checkpoint);
208 des->sf_pos_first_inconsistent =
209 le64_to_cpu(src->sf_pos_first_inconsistent);
210 des->sf_items_checked =
211 le64_to_cpu(src->sf_items_checked);
212 des->sf_items_updated =
213 le64_to_cpu(src->sf_items_updated);
214 des->sf_items_failed =
215 le64_to_cpu(src->sf_items_failed);
216 des->sf_items_updated_prior =
217 le64_to_cpu(src->sf_items_updated_prior);
218 des->sf_run_time = le32_to_cpu(src->sf_run_time);
219 des->sf_success_count = le32_to_cpu(src->sf_success_count);
220 des->sf_oi_count = le16_to_cpu(src->sf_oi_count);
221 des->sf_internal_flags = le16_to_cpu(src->sf_internal_flags);
222 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
225 static void osd_scrub_file_to_le(struct scrub_file *des,
226 struct scrub_file *src)
228 memcpy(des->sf_uuid, src->sf_uuid, 16);
229 des->sf_flags = cpu_to_le64(src->sf_flags);
230 des->sf_magic = cpu_to_le32(src->sf_magic);
231 des->sf_status = cpu_to_le16(src->sf_status);
232 des->sf_param = cpu_to_le16(src->sf_param);
233 des->sf_time_last_complete =
234 cpu_to_le64(src->sf_time_last_complete);
235 des->sf_time_latest_start =
236 cpu_to_le64(src->sf_time_latest_start);
237 des->sf_time_last_checkpoint =
238 cpu_to_le64(src->sf_time_last_checkpoint);
239 des->sf_pos_latest_start =
240 cpu_to_le64(src->sf_pos_latest_start);
241 des->sf_pos_last_checkpoint =
242 cpu_to_le64(src->sf_pos_last_checkpoint);
243 des->sf_pos_first_inconsistent =
244 cpu_to_le64(src->sf_pos_first_inconsistent);
245 des->sf_items_checked =
246 cpu_to_le64(src->sf_items_checked);
247 des->sf_items_updated =
248 cpu_to_le64(src->sf_items_updated);
249 des->sf_items_failed =
250 cpu_to_le64(src->sf_items_failed);
251 des->sf_items_updated_prior =
252 cpu_to_le64(src->sf_items_updated_prior);
253 des->sf_run_time = cpu_to_le32(src->sf_run_time);
254 des->sf_success_count = cpu_to_le32(src->sf_success_count);
255 des->sf_oi_count = cpu_to_le16(src->sf_oi_count);
256 des->sf_internal_flags = cpu_to_le16(src->sf_internal_flags);
257 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
260 static void osd_scrub_file_init(struct osd_scrub *scrub, __u8 *uuid)
262 struct scrub_file *sf = &scrub->os_file;
264 memset(sf, 0, sizeof(*sf));
265 memcpy(sf->sf_uuid, uuid, 16);
266 sf->sf_magic = SCRUB_MAGIC_V1;
267 sf->sf_status = SS_INIT;
270 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags)
272 struct scrub_file *sf = &scrub->os_file;
274 CDEBUG(D_LFSCK, "%.16s: reset OI scrub file, flags = "LPX64"\n",
275 osd_scrub2name(scrub), flags);
276 memcpy(sf->sf_uuid, uuid, 16);
277 sf->sf_status = SS_INIT;
278 sf->sf_flags |= flags;
280 sf->sf_time_latest_start = 0;
281 sf->sf_time_last_checkpoint = 0;
282 sf->sf_pos_latest_start = 0;
283 sf->sf_pos_last_checkpoint = 0;
284 sf->sf_pos_first_inconsistent = 0;
285 sf->sf_items_checked = 0;
286 sf->sf_items_updated = 0;
287 sf->sf_items_failed = 0;
288 sf->sf_items_updated_prior = 0;
289 sf->sf_items_noscrub = 0;
290 sf->sf_items_igif = 0;
293 static int osd_scrub_file_load(struct osd_scrub *scrub)
296 int len = sizeof(scrub->os_file_disk);
299 rc = osd_ldiskfs_read(scrub->os_inode, &scrub->os_file_disk, len, &pos);
301 struct scrub_file *sf = &scrub->os_file;
303 osd_scrub_file_to_cpu(sf, &scrub->os_file_disk);
304 if (sf->sf_magic != SCRUB_MAGIC_V1) {
305 CDEBUG(D_LFSCK, "%.16s: invalid scrub magic "
306 "0x%x != 0x%x\n", osd_scrub2name(scrub),
307 sf->sf_magic, SCRUB_MAGIC_V1);
308 /* Process it as new scrub file. */
313 } else if (rc != 0) {
314 CDEBUG(D_LFSCK, "%.16s: fail to load scrub file, "
315 "expected = %d: rc = %d\n",
316 osd_scrub2name(scrub), len, rc);
320 /* return -ENOENT for empty scrub file case. */
327 int osd_scrub_file_store(struct osd_scrub *scrub)
329 struct osd_device *dev;
332 int len = sizeof(scrub->os_file_disk);
336 dev = container_of0(scrub, struct osd_device, od_scrub);
337 credits = osd_dto_credits_noquota[DTO_WRITE_BASE] +
338 osd_dto_credits_noquota[DTO_WRITE_BLOCK];
339 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, credits);
342 CDEBUG(D_LFSCK, "%.16s: fail to start trans for scrub store: "
343 "rc = %d\n", osd_scrub2name(scrub), rc);
347 osd_scrub_file_to_le(&scrub->os_file_disk, &scrub->os_file);
348 rc = osd_ldiskfs_write_record(scrub->os_inode, &scrub->os_file_disk,
350 ldiskfs_journal_stop(jh);
352 CDEBUG(D_LFSCK, "%.16s: fail to store scrub file, "
353 "expected = %d: rc = %d\n",
354 osd_scrub2name(scrub), len, rc);
356 scrub->os_time_last_checkpoint = cfs_time_current();
357 scrub->os_time_next_checkpoint = scrub->os_time_last_checkpoint +
358 cfs_time_seconds(SCRUB_CHECKPOINT_INTERVAL);
363 osd_scrub_convert_ff(struct osd_thread_info *info, struct osd_device *dev,
364 struct inode *inode, const struct lu_fid *fid)
366 struct filter_fid_old *ff = &info->oti_ff;
367 struct dentry *dentry = &info->oti_obj_dentry;
371 bool removed = false;
375 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN)
378 /* We want the LMA to fit into the 256-byte OST inode, so operate
380 * 1) read old XATTR_NAME_FID and save the parent FID;
381 * 2) delete the old XATTR_NAME_FID;
382 * 3) make new LMA and add it;
383 * 4) generate new XATTR_NAME_FID with the saved parent FID and add it.
385 * Making the LMA to fit into the 256-byte OST inode can save time for
386 * normal osd_check_lma() and for other OI scrub scanning in future.
387 * So it is worth to make some slow conversion here. */
388 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
389 osd_dto_credits_noquota[DTO_XATTR_SET] * 3);
392 CDEBUG(D_LFSCK, "%s: fail to start trans for convert ff "
393 DFID": rc = %d\n", osd_name(dev), PFID(fid), rc);
397 /* 1) read old XATTR_NAME_FID and save the parent FID */
398 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
399 if (rc == sizeof(*ff)) {
400 /* 2) delete the old XATTR_NAME_FID */
401 ll_vfs_dq_init(inode);
402 rc = inode->i_op->removexattr(dentry, XATTR_NAME_FID);
407 } else if (unlikely(rc == -ENODATA)) {
409 } else if (rc != sizeof(struct filter_fid)) {
410 GOTO(stop, rc = -EINVAL);
413 /* 3) make new LMA and add it */
414 rc = osd_ea_fid_set(info, inode, fid, LMAC_FID_ON_OST, 0);
415 if (rc == 0 && reset)
416 size = sizeof(struct filter_fid);
417 else if (rc != 0 && removed)
418 /* If failed, we should try to add the old back. */
419 size = sizeof(struct filter_fid_old);
421 /* 4) generate new XATTR_NAME_FID with the saved parent FID and add it*/
425 rc1 = __osd_xattr_set(info, inode, XATTR_NAME_FID, ff, size,
427 if (rc1 != 0 && rc == 0)
434 ldiskfs_journal_stop(jh);
436 CDEBUG(D_LFSCK, "%s: fail to convert ff "DFID": rc = %d\n",
437 osd_name(dev), PFID(fid), rc);
442 osd_scrub_check_update(struct osd_thread_info *info, struct osd_device *dev,
443 struct osd_idmap_cache *oic, int val)
445 struct osd_scrub *scrub = &dev->od_scrub;
446 struct scrub_file *sf = &scrub->os_file;
447 struct lu_fid *fid = &oic->oic_fid;
448 struct osd_inode_id *lid = &oic->oic_lid;
449 struct osd_inode_id *lid2 = &info->oti_id;
450 struct osd_inconsistent_item *oii = NULL;
451 struct inode *inode = NULL;
452 int ops = DTO_INDEX_UPDATE;
455 bool converted = false;
458 down_write(&scrub->os_rwsem);
459 scrub->os_new_checked++;
463 if (scrub->os_in_prior)
464 oii = list_entry(oic, struct osd_inconsistent_item,
467 if (lid->oii_ino < sf->sf_pos_latest_start && oii == NULL)
470 if (fid_is_igif(fid))
473 if (val == SCRUB_NEXT_OSTOBJ_OLD) {
474 inode = osd_iget(info, dev, lid);
477 /* Someone removed the inode. */
478 if (rc == -ENOENT || rc == -ESTALE)
483 sf->sf_flags |= SF_UPGRADE;
484 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
485 dev->od_check_ff = 1;
486 rc = osd_scrub_convert_ff(info, dev, inode, fid);
493 if ((val == SCRUB_NEXT_NOLMA) &&
494 (!scrub->os_convert_igif || OBD_FAIL_CHECK(OBD_FAIL_FID_NOLMA)))
497 if ((oii != NULL && oii->oii_insert) || (val == SCRUB_NEXT_NOLMA))
500 rc = osd_oi_lookup(info, dev, fid, lid2,
501 (val == SCRUB_NEXT_OSTOBJ ||
502 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
504 if (rc != -ENOENT && rc != -ESTALE)
509 inode = osd_iget(info, dev, lid);
512 /* Someone removed the inode. */
513 if (rc == -ENOENT || rc == -ESTALE)
519 scrub->os_full_speed = 1;
520 ops = DTO_INDEX_INSERT;
521 idx = osd_oi_fid2idx(dev, fid);
523 case SCRUB_NEXT_NOLMA:
524 sf->sf_flags |= SF_UPGRADE;
525 if (!(sf->sf_param & SP_DRYRUN)) {
526 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
531 if (!(sf->sf_flags & SF_INCONSISTENT))
532 dev->od_igif_inoi = 0;
534 case SCRUB_NEXT_OSTOBJ:
535 sf->sf_flags |= SF_INCONSISTENT;
536 case SCRUB_NEXT_OSTOBJ_OLD:
539 sf->sf_flags |= SF_RECREATED;
540 if (unlikely(!ldiskfs_test_bit(idx, sf->sf_oi_bitmap)))
541 ldiskfs_set_bit(idx, sf->sf_oi_bitmap);
544 } else if (osd_id_eq(lid, lid2)) {
546 sf->sf_items_updated++;
550 scrub->os_full_speed = 1;
551 sf->sf_flags |= SF_INCONSISTENT;
553 /* XXX: If the device is restored from file-level backup, then
554 * some IGIFs may have been already in OI files, and some
555 * may be not yet. Means upgrading from 1.8 may be partly
556 * processed, but some clients may hold some immobilized
557 * IGIFs, and use them to access related objects. Under
558 * such case, OSD does not know whether an given IGIF has
559 * been processed or to be processed, and it also cannot
560 * generate local ino#/gen# directly from the immobilized
561 * IGIF because of the backup/restore. Then force OSD to
562 * lookup the given IGIF in OI files, and if no entry,
563 * then ask the client to retry after upgrading completed.
564 * No better choice. */
565 dev->od_igif_inoi = 1;
568 rc = osd_scrub_refresh_mapping(info, dev, fid, lid, ops, false,
569 (val == SCRUB_NEXT_OSTOBJ ||
570 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
572 if (scrub->os_in_prior)
573 sf->sf_items_updated_prior++;
575 sf->sf_items_updated++;
577 /* The target has been changed, need to be re-loaded. */
578 lu_object_purge(info->oti_env, osd2lu_dev(dev), fid);
585 sf->sf_items_failed++;
586 if (sf->sf_pos_first_inconsistent == 0 ||
587 sf->sf_pos_first_inconsistent > lid->oii_ino)
588 sf->sf_pos_first_inconsistent = lid->oii_ino;
593 /* There may be conflict unlink during the OI scrub,
594 * if happend, then remove the new added OI mapping. */
595 if (ops == DTO_INDEX_INSERT && inode != NULL && !IS_ERR(inode) &&
596 unlikely(inode->i_nlink == 0))
597 osd_scrub_refresh_mapping(info, dev, fid, lid,
598 DTO_INDEX_DELETE, false,
599 (val == SCRUB_NEXT_OSTOBJ ||
600 val == SCRUB_NEXT_OSTOBJ_OLD) ?
601 OI_KNOWN_ON_OST : 0);
602 up_write(&scrub->os_rwsem);
604 if (inode != NULL && !IS_ERR(inode))
608 LASSERT(!list_empty(&oii->oii_list));
610 spin_lock(&scrub->os_lock);
611 list_del_init(&oii->oii_list);
612 spin_unlock(&scrub->os_lock);
615 RETURN(sf->sf_param & SP_FAILOUT ? rc : 0);
620 static int osd_scrub_prep(struct osd_device *dev)
622 struct osd_scrub *scrub = &dev->od_scrub;
623 struct ptlrpc_thread *thread = &scrub->os_thread;
624 struct scrub_file *sf = &scrub->os_file;
625 __u32 flags = scrub->os_start_flags;
627 bool drop_dryrun = false;
630 down_write(&scrub->os_rwsem);
631 if (flags & SS_SET_FAILOUT)
632 sf->sf_param |= SP_FAILOUT;
634 if (flags & SS_CLEAR_FAILOUT)
635 sf->sf_param &= ~SP_FAILOUT;
637 if (flags & SS_SET_DRYRUN)
638 sf->sf_param |= SP_DRYRUN;
640 if (flags & SS_CLEAR_DRYRUN && sf->sf_param & SP_DRYRUN) {
641 sf->sf_param &= ~SP_DRYRUN;
645 if (flags & SS_RESET)
646 osd_scrub_file_reset(scrub,
647 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, 0);
649 if (flags & SS_AUTO) {
650 scrub->os_full_speed = 1;
651 sf->sf_flags |= SF_AUTO;
652 /* For the case of OI scrub auto triggered, NOT dryrun. */
653 sf->sf_param &= ~SP_FAILOUT;
655 scrub->os_full_speed = 0;
658 if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
659 scrub->os_full_speed = 1;
661 scrub->os_in_prior = 0;
662 spin_lock(&scrub->os_lock);
663 scrub->os_waiting = 0;
664 scrub->os_paused = 0;
665 spin_unlock(&scrub->os_lock);
666 scrub->os_new_checked = 0;
667 if (drop_dryrun && sf->sf_pos_first_inconsistent != 0)
668 sf->sf_pos_latest_start = sf->sf_pos_first_inconsistent;
669 else if (sf->sf_pos_last_checkpoint != 0)
670 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
672 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
674 scrub->os_pos_current = sf->sf_pos_latest_start;
675 sf->sf_status = SS_SCANNING;
676 sf->sf_time_latest_start = cfs_time_current_sec();
677 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
678 rc = osd_scrub_file_store(scrub);
680 spin_lock(&scrub->os_lock);
681 thread_set_flags(thread, SVC_RUNNING);
682 spin_unlock(&scrub->os_lock);
683 wake_up_all(&thread->t_ctl_waitq);
685 up_write(&scrub->os_rwsem);
690 static int osd_scrub_checkpoint(struct osd_scrub *scrub)
692 struct scrub_file *sf = &scrub->os_file;
695 if (likely(cfs_time_before(cfs_time_current(),
696 scrub->os_time_next_checkpoint) ||
697 scrub->os_new_checked == 0))
700 down_write(&scrub->os_rwsem);
701 sf->sf_items_checked += scrub->os_new_checked;
702 scrub->os_new_checked = 0;
703 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
704 sf->sf_time_last_checkpoint = cfs_time_current_sec();
705 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
706 scrub->os_time_last_checkpoint);
707 rc = osd_scrub_file_store(scrub);
708 up_write(&scrub->os_rwsem);
713 static void osd_scrub_post(struct osd_scrub *scrub, int result)
715 struct scrub_file *sf = &scrub->os_file;
718 down_write(&scrub->os_rwsem);
719 spin_lock(&scrub->os_lock);
720 thread_set_flags(&scrub->os_thread, SVC_STOPPING);
721 spin_unlock(&scrub->os_lock);
722 if (scrub->os_new_checked > 0) {
723 sf->sf_items_checked += scrub->os_new_checked;
724 scrub->os_new_checked = 0;
725 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
727 sf->sf_time_last_checkpoint = cfs_time_current_sec();
729 struct osd_device *dev =
730 container_of0(scrub, struct osd_device, od_scrub);
732 dev->od_igif_inoi = 1;
733 dev->od_check_ff = 0;
734 sf->sf_status = SS_COMPLETED;
735 if (!(sf->sf_param & SP_DRYRUN)) {
736 memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
737 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
738 SF_UPGRADE | SF_AUTO);
740 sf->sf_time_last_complete = sf->sf_time_last_checkpoint;
741 sf->sf_success_count++;
742 } else if (result == 0) {
743 if (scrub->os_paused)
744 sf->sf_status = SS_PAUSED;
746 sf->sf_status = SS_STOPPED;
748 sf->sf_status = SS_FAILED;
750 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
751 scrub->os_time_last_checkpoint);
752 result = osd_scrub_file_store(scrub);
753 up_write(&scrub->os_rwsem);
758 /* iteration engine */
760 struct osd_iit_param {
761 struct super_block *sb;
762 struct buffer_head *bitmap;
768 typedef int (*osd_iit_next_policy)(struct osd_thread_info *info,
769 struct osd_device *dev,
770 struct osd_iit_param *param,
771 struct osd_idmap_cache **oic,
774 typedef int (*osd_iit_exec_policy)(struct osd_thread_info *info,
775 struct osd_device *dev,
776 struct osd_iit_param *param,
777 struct osd_idmap_cache *oic,
778 int *noslot, int rc);
780 static int osd_iit_next(struct osd_iit_param *param, __u32 *pos)
782 param->offset = ldiskfs_find_next_bit(param->bitmap->b_data,
783 LDISKFS_INODES_PER_GROUP(param->sb), param->offset);
784 if (param->offset >= LDISKFS_INODES_PER_GROUP(param->sb)) {
785 *pos = 1 + (param->bg+1) * LDISKFS_INODES_PER_GROUP(param->sb);
786 return SCRUB_NEXT_BREAK;
788 *pos = param->gbase + param->offset;
794 * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST
795 * \retval 0: FID-on-MDT
797 static int osd_scrub_check_local_fldb(struct osd_thread_info *info,
798 struct osd_device *dev,
801 /* XXX: The initial OI scrub will scan the top level /O to generate
802 * a small local FLDB according to the <seq>. If the given FID
803 * is in the local FLDB, then it is FID-on-OST; otherwise it's
804 * quite possible for FID-on-MDT. */
806 return SCRUB_NEXT_OSTOBJ_OLD;
811 static int osd_scrub_get_fid(struct osd_thread_info *info,
812 struct osd_device *dev, struct inode *inode,
813 struct lu_fid *fid, bool scrub)
815 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
817 bool has_lma = false;
819 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
822 if (lma->lma_compat & LMAC_NOT_IN_OI ||
823 lma->lma_incompat & LMAI_AGENT)
824 return SCRUB_NEXT_CONTINUE;
826 *fid = lma->lma_self_fid;
830 if (lma->lma_compat & LMAC_FID_ON_OST)
831 return SCRUB_NEXT_OSTOBJ;
833 if (fid_is_idif(fid))
834 return SCRUB_NEXT_OSTOBJ_OLD;
836 /* For local object. */
837 if (fid_is_internal(fid))
840 /* For external visible MDT-object with non-normal FID. */
841 if (fid_is_namespace_visible(fid) && !fid_is_norm(fid))
844 /* For the object with normal FID, it may be MDT-object,
845 * or may be 2.4 OST-object, need further distinguish.
846 * Fall through to next section. */
849 if (rc == -ENODATA || rc == 0) {
850 rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid);
853 /* It is old 2.x (x <= 3) or 1.8 OST-object. */
854 rc = SCRUB_NEXT_OSTOBJ_OLD;
860 /* It is FID-on-OST, but we do not know how
861 * to generate its FID, ignore it directly. */
862 rc = SCRUB_NEXT_CONTINUE;
864 /* It is 2.4 OST-object. */
865 rc = SCRUB_NEXT_OSTOBJ_OLD;
873 if (dev->od_scrub.os_convert_igif) {
874 lu_igif_build(fid, inode->i_ino,
875 inode->i_generation);
877 rc = SCRUB_NEXT_NOLMA;
881 /* It may be FID-on-OST, or may be FID for
882 * non-MDT0, anyway, we do not know how to
883 * generate its FID, ignore it directly. */
884 rc = SCRUB_NEXT_CONTINUE;
889 /* For OI scrub case only: the object has LMA but has no ff
890 * (or ff crashed). It may be MDT-object, may be OST-object
891 * with crashed ff. The last check is local FLDB. */
892 rc = osd_scrub_check_local_fldb(info, dev, fid);
898 static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
899 struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
900 struct super_block *sb, bool scrub)
906 osd_id_gen(lid, pos, OSD_OII_NOGEN);
907 inode = osd_iget(info, dev, lid);
910 /* The inode may be removed after bitmap searching, or the
911 * file is new created without inode initialized yet. */
912 if (rc == -ENOENT || rc == -ESTALE)
913 RETURN(SCRUB_NEXT_CONTINUE);
915 CDEBUG(D_LFSCK, "%.16s: fail to read inode, ino# = %u: "
916 "rc = %d\n", LDISKFS_SB(sb)->s_es->s_volume_name,
922 ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
923 /* Only skip it for the first OI scrub accessing. */
924 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
925 GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
928 rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
937 static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
938 struct osd_iit_param *param,
939 struct osd_idmap_cache **oic, int noslot)
941 struct osd_scrub *scrub = &dev->od_scrub;
942 struct ptlrpc_thread *thread = &scrub->os_thread;
944 struct osd_inode_id *lid;
947 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
948 struct l_wait_info lwi;
950 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
951 l_wait_event(thread->t_ctl_waitq,
952 !list_empty(&scrub->os_inconsistent_items) ||
953 !thread_is_running(thread),
957 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
958 spin_lock(&scrub->os_lock);
959 thread_set_flags(thread, SVC_STOPPING);
960 spin_unlock(&scrub->os_lock);
961 return SCRUB_NEXT_CRASH;
964 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
965 return SCRUB_NEXT_FATAL;
967 if (unlikely(!thread_is_running(thread)))
968 return SCRUB_NEXT_EXIT;
970 if (!list_empty(&scrub->os_inconsistent_items)) {
971 struct osd_inconsistent_item *oii;
973 oii = list_entry(scrub->os_inconsistent_items.next,
974 struct osd_inconsistent_item, oii_list);
975 *oic = &oii->oii_cache;
976 scrub->os_in_prior = 1;
981 return SCRUB_NEXT_WAIT;
983 rc = osd_iit_next(param, &scrub->os_pos_current);
987 *oic = &scrub->os_oic;
988 fid = &(*oic)->oic_fid;
989 lid = &(*oic)->oic_lid;
990 rc = osd_iit_iget(info, dev, fid, lid,
991 scrub->os_pos_current, param->sb, true);
995 static int osd_preload_next(struct osd_thread_info *info,
996 struct osd_device *dev, struct osd_iit_param *param,
997 struct osd_idmap_cache **oic, int noslot)
999 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1000 struct osd_scrub *scrub;
1001 struct ptlrpc_thread *thread;
1004 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1008 scrub = &dev->od_scrub;
1009 thread = &scrub->os_thread;
1010 if (thread_is_running(thread) &&
1011 ooc->ooc_pos_preload >= scrub->os_pos_current)
1012 return SCRUB_NEXT_EXIT;
1014 rc = osd_iit_iget(info, dev,
1015 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1016 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1017 ooc->ooc_pos_preload, param->sb, false);
1018 /* If succeed, it needs to move forward; otherwise up layer LFSCK may
1019 * ignore the failure, so it still need to skip the inode next time. */
1020 ooc->ooc_pos_preload = param->gbase + ++(param->offset);
1025 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1027 spin_lock(&scrub->os_lock);
1028 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1029 !list_empty(&scrub->os_inconsistent_items) ||
1030 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1031 scrub->os_waiting = 0;
1033 scrub->os_waiting = 1;
1034 spin_unlock(&scrub->os_lock);
1036 return !scrub->os_waiting;
1039 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1040 struct osd_iit_param *param,
1041 struct osd_idmap_cache *oic, int *noslot, int rc)
1043 struct l_wait_info lwi = { 0 };
1044 struct osd_scrub *scrub = &dev->od_scrub;
1045 struct scrub_file *sf = &scrub->os_file;
1046 struct ptlrpc_thread *thread = &scrub->os_thread;
1047 struct osd_otable_it *it = dev->od_otable_it;
1048 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1051 case SCRUB_NEXT_CONTINUE:
1053 case SCRUB_NEXT_WAIT:
1055 case SCRUB_NEXT_NOSCRUB:
1056 down_write(&scrub->os_rwsem);
1057 scrub->os_new_checked++;
1058 sf->sf_items_noscrub++;
1059 up_write(&scrub->os_rwsem);
1063 rc = osd_scrub_check_update(info, dev, oic, rc);
1067 rc = osd_scrub_checkpoint(scrub);
1069 CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: "
1070 "rc = %d\n", osd_scrub2name(scrub),
1071 scrub->os_pos_current, rc);
1072 /* Continue, as long as the scrub itself can go ahead. */
1075 if (scrub->os_in_prior) {
1076 scrub->os_in_prior = 0;
1081 scrub->os_pos_current = param->gbase + ++(param->offset);
1084 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1085 ooc->ooc_pos_preload < scrub->os_pos_current) {
1086 spin_lock(&scrub->os_lock);
1087 it->ooi_waiting = 0;
1088 wake_up_all(&thread->t_ctl_waitq);
1089 spin_unlock(&scrub->os_lock);
1092 if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
1095 if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) {
1101 l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
1104 if (ooc != NULL && osd_scrub_has_window(scrub, ooc))
1111 static int osd_preload_exec(struct osd_thread_info *info,
1112 struct osd_device *dev, struct osd_iit_param *param,
1113 struct osd_idmap_cache *oic, int *noslot, int rc)
1115 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1118 ooc->ooc_cached_items++;
1119 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1120 ~OSD_OTABLE_IT_CACHE_MASK;
1122 return rc > 0 ? 0 : rc;
1125 #define SCRUB_IT_ALL 1
1126 #define SCRUB_IT_CRASH 2
1128 static int osd_inode_iteration(struct osd_thread_info *info,
1129 struct osd_device *dev, __u32 max, bool preload)
1131 osd_iit_next_policy next;
1132 osd_iit_exec_policy exec;
1135 struct osd_iit_param param;
1142 struct osd_scrub *scrub = &dev->od_scrub;
1144 next = osd_scrub_next;
1145 exec = osd_scrub_exec;
1146 pos = &scrub->os_pos_current;
1147 count = &scrub->os_new_checked;
1149 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1151 next = osd_preload_next;
1152 exec = osd_preload_exec;
1153 pos = &ooc->ooc_pos_preload;
1154 count = &ooc->ooc_cached_items;
1156 param.sb = osd_sb(dev);
1157 limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
1159 while (*pos <= limit && *count < max) {
1160 struct osd_idmap_cache *oic = NULL;
1162 param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
1163 param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
1164 param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1165 param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
1166 if (param.bitmap == NULL) {
1167 CDEBUG(D_LFSCK, "%.16s: fail to read bitmap for %u, "
1168 "scrub will stop, urgent mode\n",
1169 LDISKFS_SB(param.sb)->s_es->s_volume_name,
1174 while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
1176 rc = next(info, dev, ¶m, &oic, noslot);
1178 case SCRUB_NEXT_BREAK:
1180 case SCRUB_NEXT_EXIT:
1181 brelse(param.bitmap);
1183 case SCRUB_NEXT_CRASH:
1184 brelse(param.bitmap);
1185 RETURN(SCRUB_IT_CRASH);
1186 case SCRUB_NEXT_FATAL:
1187 brelse(param.bitmap);
1191 rc = exec(info, dev, ¶m, oic, &noslot, rc);
1193 brelse(param.bitmap);
1199 brelse(param.bitmap);
1203 RETURN(SCRUB_IT_ALL);
1207 static int osd_otable_it_preload(const struct lu_env *env,
1208 struct osd_otable_it *it)
1210 struct osd_device *dev = it->ooi_dev;
1211 struct osd_scrub *scrub = &dev->od_scrub;
1212 struct osd_otable_cache *ooc = &it->ooi_cache;
1216 rc = osd_inode_iteration(osd_oti_get(env), dev,
1217 OSD_OTABLE_IT_CACHE_SIZE, true);
1218 if (rc == SCRUB_IT_ALL)
1219 it->ooi_all_cached = 1;
1221 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1222 spin_lock(&scrub->os_lock);
1223 scrub->os_waiting = 0;
1224 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1225 spin_unlock(&scrub->os_lock);
1228 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1231 static int osd_scrub_main(void *args)
1234 struct osd_device *dev = (struct osd_device *)args;
1235 struct osd_scrub *scrub = &dev->od_scrub;
1236 struct ptlrpc_thread *thread = &scrub->os_thread;
1240 rc = lu_env_init(&env, LCT_LOCAL);
1242 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n",
1243 osd_scrub2name(scrub), rc);
1247 rc = osd_scrub_prep(dev);
1249 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n",
1250 osd_scrub2name(scrub), rc);
1254 if (!scrub->os_full_speed) {
1255 struct l_wait_info lwi = { 0 };
1256 struct osd_otable_it *it = dev->od_otable_it;
1257 struct osd_otable_cache *ooc = &it->ooi_cache;
1259 l_wait_event(thread->t_ctl_waitq,
1260 it->ooi_user_ready || !thread_is_running(thread),
1262 if (unlikely(!thread_is_running(thread)))
1265 scrub->os_pos_current = ooc->ooc_pos_preload;
1268 CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n",
1269 osd_scrub2name(scrub), scrub->os_start_flags,
1270 scrub->os_pos_current);
1272 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1273 if (unlikely(rc == SCRUB_IT_CRASH))
1274 GOTO(out, rc = -EINVAL);
1278 osd_scrub_post(scrub, rc);
1279 CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n",
1280 osd_scrub2name(scrub), scrub->os_pos_current, rc);
1283 while (!list_empty(&scrub->os_inconsistent_items)) {
1284 struct osd_inconsistent_item *oii;
1286 oii = list_entry(scrub->os_inconsistent_items.next,
1287 struct osd_inconsistent_item, oii_list);
1288 list_del_init(&oii->oii_list);
1294 spin_lock(&scrub->os_lock);
1295 thread_set_flags(thread, SVC_STOPPED);
1296 wake_up_all(&thread->t_ctl_waitq);
1297 spin_unlock(&scrub->os_lock);
1301 /* initial OI scrub */
1303 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1304 struct dentry *, filldir_t filldir);
1306 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1307 loff_t offset, __u64 ino, unsigned d_type);
1308 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1309 loff_t offset, __u64 ino, unsigned d_type);
1310 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1311 loff_t offset, __u64 ino, unsigned d_type);
1314 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1315 struct dentry *dentry, filldir_t filldir);
1317 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1318 struct dentry *dentry, filldir_t filldir);
1321 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1322 struct dentry *dentry, filldir_t filldir);
1325 OLF_SCAN_SUBITEMS = 0x0001,
1326 OLF_HIDE_FID = 0x0002,
1327 OLF_SHOW_NAME = 0x0004,
1333 struct lu_fid olm_fid;
1335 scandir_t olm_scandir;
1336 filldir_t olm_filldir;
1339 /* Add the new introduced local files in the list in the future. */
1340 static const struct osd_lf_map osd_lf_maps[] = {
1342 { CATLIST, { FID_SEQ_LOCAL_FILE, LLOG_CATALOGS_OID, 0 }, OLF_SHOW_NAME,
1346 { MOUNT_CONFIGS_DIR, { FID_SEQ_LOCAL_FILE, MGS_CONFIGS_OID, 0 },
1347 OLF_SCAN_SUBITEMS, osd_ios_general_scan,
1348 osd_ios_varfid_fill },
1350 /* NIDTBL_VERSIONS */
1351 { MGS_NIDTBL_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1352 osd_ios_general_scan, osd_ios_varfid_fill },
1355 { "PENDING", { 0, 0, 0 }, 0, NULL, NULL },
1358 { "ROOT", { FID_SEQ_ROOT, 1, 0 },
1359 OLF_SCAN_SUBITEMS | OLF_HIDE_FID, osd_ios_ROOT_scan, NULL },
1361 /* changelog_catalog */
1362 { CHANGELOG_CATALOG, { 0, 0, 0 }, 0, NULL, NULL },
1364 /* changelog_users */
1365 { CHANGELOG_USERS, { 0, 0, 0 }, 0, NULL, NULL },
1368 { "fld", { FID_SEQ_LOCAL_FILE, FLD_INDEX_OID, 0 }, OLF_SHOW_NAME,
1372 { LAST_RCVD, { FID_SEQ_LOCAL_FILE, LAST_RECV_OID, 0 }, OLF_SHOW_NAME,
1375 /* lfsck_bookmark */
1376 { "lfsck_bookmark", { 0, 0, 0 }, 0, NULL, NULL },
1379 { LOV_OBJID, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OID, 0 }, OLF_SHOW_NAME,
1383 { LOV_OBJSEQ, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OSEQ, 0 },
1384 OLF_SHOW_NAME, NULL, NULL },
1387 { QMT_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1388 osd_ios_general_scan, osd_ios_varfid_fill },
1391 { QSD_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1392 osd_ios_general_scan, osd_ios_varfid_fill },
1395 { "seq_ctl", { FID_SEQ_LOCAL_FILE, FID_SEQ_CTL_OID, 0 },
1396 OLF_SHOW_NAME, NULL, NULL },
1399 { "seq_srv", { FID_SEQ_LOCAL_FILE, FID_SEQ_SRV_OID, 0 },
1400 OLF_SHOW_NAME, NULL, NULL },
1403 { HEALTH_CHECK, { FID_SEQ_LOCAL_FILE, OFD_HEALTH_CHECK_OID, 0 },
1404 OLF_SHOW_NAME, NULL, NULL },
1406 /* lfsck_namespace */
1407 { "lfsck_namespace", { 0, 0, 0 }, 0, NULL, NULL },
1409 /* OBJECTS, upgrade from old device */
1410 { OBJECTS, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, osd_ios_OBJECTS_scan, NULL },
1412 /* lquota_v2.user, upgrade from old device */
1413 { "lquota_v2.user", { 0, 0, 0 }, 0, NULL, NULL },
1415 /* lquota_v2.group, upgrade from old device */
1416 { "lquota_v2.group", { 0, 0, 0 }, 0, NULL, NULL },
1418 /* LAST_GROUP, upgrade from old device */
1419 { "LAST_GROUP", { FID_SEQ_LOCAL_FILE, OFD_LAST_GROUP_OID, 0 },
1420 OLF_SHOW_NAME, NULL, NULL },
1422 /* SLAVE_LOG, llog for destroy slave stripes of striped dir */
1423 { "SLAVE_LOG", { FID_SEQ_LOCAL_FILE, SLAVE_LLOG_CATALOGS_OID, 0 },
1424 OLF_SHOW_NAME, NULL, NULL },
1427 { "lost+found", { 0, 0, 0 }, OLF_SCAN_SUBITEMS | OLF_NO_OI,
1428 osd_ios_general_scan, osd_ios_lf_fill },
1430 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1433 /* Add the new introduced files under .lustre/ in the list in the future. */
1434 static const struct osd_lf_map osd_dl_maps[] = {
1436 { "fid", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_OBF, 0 }, 0,
1439 /* .lustre/lost+found */
1440 { "lost+found", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_LPF, 0 }, 0,
1443 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1446 struct osd_ios_item {
1447 struct list_head oii_list;
1448 struct dentry *oii_dentry;
1449 scandir_t oii_scandir;
1450 filldir_t oii_filldir;
1453 struct osd_ios_filldir_buf {
1454 #ifdef HAVE_DIR_CONTEXT
1455 /* please keep it as first member */
1456 struct dir_context ctx;
1458 struct osd_thread_info *oifb_info;
1459 struct osd_device *oifb_dev;
1460 struct dentry *oifb_dentry;
1463 static inline struct dentry *
1464 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1466 struct dentry *dentry;
1468 dentry = ll_lookup_one_len(name, parent, namelen);
1469 if (!IS_ERR(dentry) && dentry->d_inode == NULL) {
1471 return ERR_PTR(-ENOENT);
1478 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1479 scandir_t scandir, filldir_t filldir)
1481 struct osd_ios_item *item;
1484 OBD_ALLOC_PTR(item);
1488 INIT_LIST_HEAD(&item->oii_list);
1489 item->oii_dentry = dget(dentry);
1490 item->oii_scandir = scandir;
1491 item->oii_filldir = filldir;
1492 list_add_tail(&item->oii_list, &dev->od_ios_list);
1498 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
1500 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
1501 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
1502 * reference the inode, or fixed if it is missing or references another inode.
1505 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
1506 struct inode *inode, const struct lu_fid *fid, int flags)
1508 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1509 struct osd_inode_id *id = &info->oti_id;
1510 struct osd_inode_id *id2 = &info->oti_id2;
1511 struct osd_scrub *scrub = &dev->od_scrub;
1512 struct scrub_file *sf = &scrub->os_file;
1517 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
1518 if (rc != 0 && rc != -ENODATA) {
1519 CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
1520 "rc = %d\n", osd_name(dev), rc);
1525 osd_id_gen(id, inode->i_ino, inode->i_generation);
1526 if (rc == -ENODATA) {
1527 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID)
1528 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
1531 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
1533 CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
1534 "scrub: rc = %d\n", osd_name(dev), rc);
1539 if (lma->lma_compat & LMAC_NOT_IN_OI)
1542 tfid = lma->lma_self_fid;
1545 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
1550 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1551 DTO_INDEX_INSERT, true, 0);
1558 if (osd_id_eq_strict(id, id2))
1561 if (!(sf->sf_flags & SF_INCONSISTENT)) {
1562 osd_scrub_file_reset(scrub,
1563 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1565 rc = osd_scrub_file_store(scrub);
1570 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1571 DTO_INDEX_UPDATE, true, 0);
1579 * It scans the /lost+found, and for the OST-object (with filter_fid
1580 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
1582 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1583 loff_t offset, __u64 ino, unsigned d_type)
1585 struct osd_ios_filldir_buf *fill_buf = buf;
1586 struct osd_thread_info *info = fill_buf->oifb_info;
1587 struct osd_device *dev = fill_buf->oifb_dev;
1588 struct lu_fid *fid = &info->oti_fid;
1589 struct osd_scrub *scrub = &dev->od_scrub;
1590 struct dentry *parent = fill_buf->oifb_dentry;
1591 struct dentry *child;
1592 struct inode *dir = parent->d_inode;
1593 struct inode *inode;
1597 /* skip any '.' started names */
1601 scrub->os_lf_scanned++;
1602 child = osd_ios_lookup_one_len(name, parent, namelen);
1603 if (IS_ERR(child)) {
1604 CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
1605 osd_name(dev), namelen, name, (int)PTR_ERR(child));
1609 inode = child->d_inode;
1610 if (S_ISDIR(inode->i_mode)) {
1611 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1614 CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
1615 "rc = %d\n", osd_name(dev), namelen, name, rc);
1619 if (!S_ISREG(inode->i_mode))
1622 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
1623 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
1624 rc = osd_obj_map_recover(info, dev, dir, child, fid);
1626 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
1627 "/lost+found.\n", namelen, name, PFID(fid));
1628 scrub->os_lf_repaired++;
1630 CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
1632 osd_name(dev), namelen, name, PFID(fid), rc);
1636 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
1637 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
1638 * can process them in furtuer. */
1644 scrub->os_lf_failed++;
1646 /* skip the failure to make the scanning to continue. */
1650 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1651 loff_t offset, __u64 ino, unsigned d_type)
1653 struct osd_ios_filldir_buf *fill_buf = buf;
1654 struct osd_device *dev = fill_buf->oifb_dev;
1655 struct dentry *child;
1659 /* skip any '.' started names */
1663 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1665 RETURN(PTR_ERR(child));
1667 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1669 if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
1670 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1671 osd_ios_varfid_fill);
1677 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1678 loff_t offset, __u64 ino, unsigned d_type)
1680 struct osd_ios_filldir_buf *fill_buf = buf;
1681 struct osd_device *dev = fill_buf->oifb_dev;
1682 const struct osd_lf_map *map;
1683 struct dentry *child;
1687 /* skip any '.' started names */
1691 for (map = osd_dl_maps; map->olm_name != NULL; map++) {
1692 if (strlen(map->olm_name) != namelen)
1695 if (strncmp(map->olm_name, name, namelen) == 0)
1699 if (map->olm_name == NULL)
1702 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1704 RETURN(PTR_ERR(child));
1706 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1707 &map->olm_fid, map->olm_flags);
1713 static int osd_ios_root_fill(void *buf, const char *name, int namelen,
1714 loff_t offset, __u64 ino, unsigned d_type)
1716 struct osd_ios_filldir_buf *fill_buf = buf;
1717 struct osd_device *dev = fill_buf->oifb_dev;
1718 const struct osd_lf_map *map;
1719 struct dentry *child;
1723 /* skip any '.' started names */
1727 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
1728 if (strlen(map->olm_name) != namelen)
1731 if (strncmp(map->olm_name, name, namelen) == 0)
1735 if (map->olm_name == NULL)
1738 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1740 RETURN(PTR_ERR(child));
1742 if (!(map->olm_flags & OLF_NO_OI))
1743 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1744 &map->olm_fid, map->olm_flags);
1745 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
1746 rc = osd_ios_new_item(dev, child, map->olm_scandir,
1754 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1755 struct dentry *dentry, filldir_t filldir)
1757 struct osd_ios_filldir_buf buf = {
1758 #ifdef HAVE_DIR_CONTEXT
1759 .ctx.actor = filldir,
1763 .oifb_dentry = dentry };
1764 struct file *filp = &info->oti_it_ea.oie_file;
1765 struct inode *inode = dentry->d_inode;
1766 const struct file_operations *fops = inode->i_fop;
1770 LASSERT(filldir != NULL);
1773 filp->f_dentry = dentry;
1774 filp->f_mode = FMODE_64BITHASH;
1775 filp->f_mapping = inode->i_mapping;
1777 filp->private_data = NULL;
1778 set_file_inode(filp, inode);
1780 #ifdef HAVE_DIR_CONTEXT
1781 buf.ctx.pos = filp->f_pos;
1782 rc = fops->iterate(filp, &buf.ctx);
1783 filp->f_pos = buf.ctx.pos;
1785 rc = fops->readdir(filp, &buf, filldir);
1787 fops->release(inode, filp);
1793 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1794 struct dentry *dentry, filldir_t filldir)
1796 struct osd_scrub *scrub = &dev->od_scrub;
1797 struct scrub_file *sf = &scrub->os_file;
1798 struct dentry *child;
1802 /* It is existing MDT0 device. We only allow the case of object without
1803 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
1804 * can generate IGIF mode FID for the object and related OI mapping. If
1805 * it is on other MDTs, then becuase file-level backup/restore, related
1806 * OI mapping may be invalid already, we do not know which is the right
1807 * FID for the object. We only allow IGIF objects to reside on the MDT0.
1809 * XXX: For the case of object on non-MDT0 device with neither LMA nor
1810 * "fid" xattr, then something crashed. We cannot re-generate the
1811 * FID directly, instead, the OI scrub will scan the OI structure
1812 * and try to re-generate the LMA from the OI mapping. But if the
1813 * OI mapping crashed or lost also, then we have to give up under
1814 * double failure cases. */
1815 scrub->os_convert_igif = 1;
1816 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
1817 strlen(dot_lustre_name));
1818 if (IS_ERR(child)) {
1819 rc = PTR_ERR(child);
1820 if (rc == -ENOENT) {
1821 /* It is 1.8 MDT device. */
1822 if (!(sf->sf_flags & SF_UPGRADE)) {
1823 osd_scrub_file_reset(scrub,
1824 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1826 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
1827 rc = osd_scrub_file_store(scrub);
1833 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
1834 * so the client will get IGIF for the ".lustre" object when
1837 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
1838 * it does not know whether there are some old clients cached
1839 * the ".lustre" IGIF during the upgrading. Two choices:
1841 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
1842 * It will allow the old connected clients to access the
1843 * ".lustre" with cached IGIF. But it will cause others
1844 * on the MDT failed to check "fid_is_dot_lustre()".
1846 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
1847 * for ".lustre" in spite of whether there are some clients
1848 * cached the ".lustre" IGIF or not. It enables the check
1849 * "fid_is_dot_lustre()" on the MDT, although it will cause
1850 * that the old connected clients cannot access the ".lustre"
1851 * with the cached IGIF.
1853 * Usually, it is rare case for the old connected clients
1854 * to access the ".lustre" with cached IGIF. So we prefer
1855 * to the solution 2). */
1856 rc = osd_ios_scan_one(info, dev, child->d_inode,
1857 &LU_DOT_LUSTRE_FID, 0);
1859 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1868 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1869 struct dentry *dentry, filldir_t filldir)
1871 struct osd_scrub *scrub = &dev->od_scrub;
1872 struct scrub_file *sf = &scrub->os_file;
1873 struct dentry *child;
1877 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
1878 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
1879 rc = osd_scrub_file_store(scrub);
1884 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
1885 if (!IS_ERR(child)) {
1886 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
1889 rc = PTR_ERR(child);
1892 if (rc != 0 && rc != -ENOENT)
1895 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
1896 if (!IS_ERR(child)) {
1897 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
1900 rc = PTR_ERR(child);
1909 static int osd_initial_OI_scrub(struct osd_thread_info *info,
1910 struct osd_device *dev)
1912 struct osd_ios_item *item = NULL;
1913 scandir_t scandir = osd_ios_general_scan;
1914 filldir_t filldir = osd_ios_root_fill;
1915 struct dentry *dentry = osd_sb(dev)->s_root;
1916 const struct osd_lf_map *map = osd_lf_maps;
1920 /* Lookup IGIF in OI by force for initial OI scrub. */
1921 dev->od_igif_inoi = 1;
1924 rc = scandir(info, dev, dentry, filldir);
1926 dput(item->oii_dentry);
1933 if (list_empty(&dev->od_ios_list))
1936 item = list_entry(dev->od_ios_list.next,
1937 struct osd_ios_item, oii_list);
1938 list_del_init(&item->oii_list);
1940 LASSERT(item->oii_scandir != NULL);
1941 scandir = item->oii_scandir;
1942 filldir = item->oii_filldir;
1943 dentry = item->oii_dentry;
1946 while (!list_empty(&dev->od_ios_list)) {
1947 item = list_entry(dev->od_ios_list.next,
1948 struct osd_ios_item, oii_list);
1949 list_del_init(&item->oii_list);
1950 dput(item->oii_dentry);
1957 /* There maybe the case that the object has been removed, but its OI
1958 * mapping is still in the OI file, such as the "CATALOGS" after MDT
1959 * file-level backup/restore. So here cleanup the stale OI mappings. */
1960 while (map->olm_name != NULL) {
1961 struct dentry *child;
1963 if (fid_is_zero(&map->olm_fid)) {
1968 child = osd_ios_lookup_one_len(map->olm_name,
1969 osd_sb(dev)->s_root,
1970 strlen(map->olm_name));
1973 else if (PTR_ERR(child) == -ENOENT)
1974 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
1975 NULL, DTO_INDEX_DELETE,
1983 char *osd_lf_fid2name(const struct lu_fid *fid)
1985 const struct osd_lf_map *map = osd_lf_maps;
1987 while (map->olm_name != NULL) {
1988 if (!lu_fid_eq(fid, &map->olm_fid)) {
1993 if (map->olm_flags & OLF_SHOW_NAME)
1994 return map->olm_name;
2002 /* OI scrub start/stop */
2004 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
2006 struct osd_scrub *scrub = &dev->od_scrub;
2007 struct ptlrpc_thread *thread = &scrub->os_thread;
2008 struct l_wait_info lwi = { 0 };
2009 struct task_struct *task;
2014 /* os_lock: sync status between stop and scrub thread */
2015 spin_lock(&scrub->os_lock);
2016 if (thread_is_running(thread)) {
2017 spin_unlock(&scrub->os_lock);
2019 } else if (unlikely(thread_is_stopping(thread))) {
2020 spin_unlock(&scrub->os_lock);
2021 l_wait_event(thread->t_ctl_waitq,
2022 thread_is_stopped(thread),
2026 spin_unlock(&scrub->os_lock);
2028 if (scrub->os_file.sf_status == SS_COMPLETED) {
2029 if (!(flags & SS_SET_FAILOUT))
2030 flags |= SS_CLEAR_FAILOUT;
2032 if (!(flags & SS_SET_DRYRUN))
2033 flags |= SS_CLEAR_DRYRUN;
2038 scrub->os_start_flags = flags;
2039 thread_set_flags(thread, 0);
2040 task = kthread_run(osd_scrub_main, dev, "OI_scrub");
2043 CERROR("%.16s: cannot start iteration thread: rc = %d\n",
2044 osd_scrub2name(scrub), rc);
2048 l_wait_event(thread->t_ctl_waitq,
2049 thread_is_running(thread) || thread_is_stopped(thread),
2055 int osd_scrub_start(struct osd_device *dev)
2060 /* od_otable_mutex: prevent curcurrent start/stop */
2061 mutex_lock(&dev->od_otable_mutex);
2062 rc = do_osd_scrub_start(dev, SS_AUTO);
2063 mutex_unlock(&dev->od_otable_mutex);
2065 RETURN(rc == -EALREADY ? 0 : rc);
2068 static void do_osd_scrub_stop(struct osd_scrub *scrub)
2070 struct ptlrpc_thread *thread = &scrub->os_thread;
2071 struct l_wait_info lwi = { 0 };
2073 /* os_lock: sync status between stop and scrub thread */
2074 spin_lock(&scrub->os_lock);
2075 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
2076 thread_set_flags(thread, SVC_STOPPING);
2077 spin_unlock(&scrub->os_lock);
2078 wake_up_all(&thread->t_ctl_waitq);
2079 l_wait_event(thread->t_ctl_waitq,
2080 thread_is_stopped(thread),
2082 /* Do not skip the last lock/unlock, which can guarantee that
2083 * the caller cannot return until the OI scrub thread exit. */
2084 spin_lock(&scrub->os_lock);
2086 spin_unlock(&scrub->os_lock);
2089 static void osd_scrub_stop(struct osd_device *dev)
2091 /* od_otable_mutex: prevent curcurrent start/stop */
2092 mutex_lock(&dev->od_otable_mutex);
2093 dev->od_scrub.os_paused = 1;
2094 do_osd_scrub_stop(&dev->od_scrub);
2095 mutex_unlock(&dev->od_otable_mutex);
2098 /* OI scrub setup/cleanup */
2100 static const char osd_scrub_name[] = "OI_scrub";
2102 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2104 struct osd_thread_info *info = osd_oti_get(env);
2105 struct osd_scrub *scrub = &dev->od_scrub;
2106 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2107 struct scrub_file *sf = &scrub->os_file;
2108 struct super_block *sb = osd_sb(dev);
2109 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2110 struct lvfs_run_ctxt saved;
2112 struct inode *inode;
2113 struct lu_fid *fid = &info->oti_fid;
2118 memset(scrub, 0, sizeof(*scrub));
2119 OBD_SET_CTXT_MAGIC(ctxt);
2120 ctxt->pwdmnt = dev->od_mnt;
2121 ctxt->pwd = dev->od_mnt->mnt_root;
2122 ctxt->fs = get_ds();
2124 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2125 init_rwsem(&scrub->os_rwsem);
2126 spin_lock_init(&scrub->os_lock);
2127 INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2129 push_ctxt(&saved, ctxt);
2130 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2132 pop_ctxt(&saved, ctxt);
2133 RETURN(PTR_ERR(filp));
2136 inode = filp->f_dentry->d_inode;
2137 /* 'What the @fid is' is not imporatant, because the object
2138 * has no OI mapping, and only is visible inside the OSD.*/
2139 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2140 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2142 filp_close(filp, 0);
2143 pop_ctxt(&saved, ctxt);
2147 scrub->os_inode = igrab(inode);
2148 filp_close(filp, 0);
2149 pop_ctxt(&saved, ctxt);
2151 rc = osd_scrub_file_load(scrub);
2152 if (rc == -ENOENT) {
2153 osd_scrub_file_init(scrub, es->s_uuid);
2154 /* If the "/O" dir does not exist when mount (indicated by
2155 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2156 * then it is quite probably that the device is a new one,
2157 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2159 * For the rare case that "/O" and "OI_scrub" both lost on
2160 * an old device, it can be found and cleared later.
2162 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2163 * need to check "filter_fid_old" and to convert it to
2164 * "filter_fid" for each object, and all the IGIF should
2165 * have their FID mapping in OI files already. */
2166 if (dev->od_maybe_new)
2167 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2169 } else if (rc != 0) {
2172 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2173 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2175 } else if (sf->sf_status == SS_SCANNING) {
2176 sf->sf_status = SS_CRASHED;
2181 if (sf->sf_pos_last_checkpoint != 0)
2182 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2184 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2187 rc = osd_scrub_file_store(scrub);
2192 /* Initialize OI files. */
2193 rc = osd_oi_init(info, dev);
2197 rc = osd_initial_OI_scrub(info, dev);
2199 if (sf->sf_flags & SF_UPGRADE ||
2200 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2201 sf->sf_success_count > 0)) {
2202 dev->od_igif_inoi = 0;
2203 dev->od_check_ff = dev->od_is_ost;
2205 dev->od_igif_inoi = 1;
2206 dev->od_check_ff = 0;
2209 if (sf->sf_flags & SF_INCONSISTENT)
2210 /* The 'od_igif_inoi' will be set under the
2212 * 1) new created system, or
2213 * 2) restored from file-level backup, or
2214 * 3) the upgrading completed.
2216 * The 'od_igif_inoi' may be cleared by OI scrub
2217 * later if found that the system is upgrading. */
2218 dev->od_igif_inoi = 1;
2220 if (!dev->od_noscrub &&
2221 ((sf->sf_status == SS_PAUSED) ||
2222 (sf->sf_status == SS_CRASHED &&
2223 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2224 SF_UPGRADE | SF_AUTO)) ||
2225 (sf->sf_status == SS_INIT &&
2226 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2228 rc = osd_scrub_start(dev);
2231 /* it is possible that dcache entries may keep objects after they are
2232 * deleted by OSD. While it looks safe this can cause object data to
2233 * stay until umount causing failures in tests calculating free space,
2234 * e.g. replay-ost-single. Since those dcache entries are not used
2235 * anymore let's just free them after use here */
2236 shrink_dcache_sb(sb);
2241 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2243 struct osd_scrub *scrub = &dev->od_scrub;
2245 LASSERT(dev->od_otable_it == NULL);
2247 if (scrub->os_inode != NULL) {
2248 osd_scrub_stop(dev);
2249 iput(scrub->os_inode);
2250 scrub->os_inode = NULL;
2252 if (dev->od_oi_table != NULL)
2253 osd_oi_fini(osd_oti_get(env), dev);
2256 /* object table based iteration APIs */
2258 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2259 struct dt_object *dt, __u32 attr,
2260 struct lustre_capa *capa)
2262 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2263 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2264 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2265 struct osd_scrub *scrub = &dev->od_scrub;
2266 struct osd_otable_it *it;
2271 /* od_otable_mutex: prevent curcurrent init/fini */
2272 mutex_lock(&dev->od_otable_mutex);
2273 if (dev->od_otable_it != NULL)
2274 GOTO(out, it = ERR_PTR(-EALREADY));
2278 GOTO(out, it = ERR_PTR(-ENOMEM));
2280 dev->od_otable_it = it;
2282 it->ooi_cache.ooc_consumer_idx = -1;
2283 if (flags & DOIF_OUTUSED)
2284 it->ooi_used_outside = 1;
2286 if (flags & DOIF_RESET)
2289 if (valid & DOIV_ERROR_HANDLE) {
2290 if (flags & DOIF_FAILOUT)
2291 start |= SS_SET_FAILOUT;
2293 start |= SS_CLEAR_FAILOUT;
2296 if (valid & DOIV_DRYRUN) {
2297 if (flags & DOIF_DRYRUN)
2298 start |= SS_SET_DRYRUN;
2300 start |= SS_CLEAR_DRYRUN;
2303 rc = do_osd_scrub_start(dev, start);
2304 if (rc < 0 && rc != -EALREADY) {
2305 dev->od_otable_it = NULL;
2307 GOTO(out, it = ERR_PTR(rc));
2310 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2315 mutex_unlock(&dev->od_otable_mutex);
2316 return (struct dt_it *)it;
2319 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2321 struct osd_otable_it *it = (struct osd_otable_it *)di;
2322 struct osd_device *dev = it->ooi_dev;
2324 /* od_otable_mutex: prevent curcurrent init/fini */
2325 mutex_lock(&dev->od_otable_mutex);
2326 do_osd_scrub_stop(&dev->od_scrub);
2327 LASSERT(dev->od_otable_it == it);
2329 dev->od_otable_it = NULL;
2330 mutex_unlock(&dev->od_otable_mutex);
2334 static int osd_otable_it_get(const struct lu_env *env,
2335 struct dt_it *di, const struct dt_key *key)
2340 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2345 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2347 spin_lock(&scrub->os_lock);
2348 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2349 scrub->os_waiting ||
2350 !thread_is_running(&scrub->os_thread))
2351 it->ooi_waiting = 0;
2353 it->ooi_waiting = 1;
2354 spin_unlock(&scrub->os_lock);
2356 return !it->ooi_waiting;
2359 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2361 struct osd_otable_it *it = (struct osd_otable_it *)di;
2362 struct osd_device *dev = it->ooi_dev;
2363 struct osd_scrub *scrub = &dev->od_scrub;
2364 struct osd_otable_cache *ooc = &it->ooi_cache;
2365 struct ptlrpc_thread *thread = &scrub->os_thread;
2366 struct l_wait_info lwi = { 0 };
2370 LASSERT(it->ooi_user_ready);
2373 if (!thread_is_running(thread) && !it->ooi_used_outside)
2376 if (ooc->ooc_cached_items > 0) {
2377 ooc->ooc_cached_items--;
2378 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
2379 ~OSD_OTABLE_IT_CACHE_MASK;
2383 if (it->ooi_all_cached) {
2384 l_wait_event(thread->t_ctl_waitq,
2385 !thread_is_running(thread),
2390 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
2391 spin_lock(&scrub->os_lock);
2392 scrub->os_waiting = 0;
2393 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2394 spin_unlock(&scrub->os_lock);
2397 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
2398 l_wait_event(thread->t_ctl_waitq,
2399 osd_otable_it_wakeup(scrub, it),
2402 if (!thread_is_running(thread) && !it->ooi_used_outside)
2405 rc = osd_otable_it_preload(env, it);
2412 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
2413 const struct dt_it *di)
2418 static int osd_otable_it_key_size(const struct lu_env *env,
2419 const struct dt_it *di)
2421 return sizeof(__u64);
2424 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
2425 struct dt_rec *rec, __u32 attr)
2427 struct osd_otable_it *it = (struct osd_otable_it *)di;
2428 struct osd_otable_cache *ooc = &it->ooi_cache;
2430 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
2432 /* Filter out Invald FID already. */
2433 LASSERTF(fid_is_sane((struct lu_fid *)rec),
2434 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
2435 PFID((struct lu_fid *)rec),
2436 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
2441 static __u64 osd_otable_it_store(const struct lu_env *env,
2442 const struct dt_it *di)
2444 struct osd_otable_it *it = (struct osd_otable_it *)di;
2445 struct osd_otable_cache *ooc = &it->ooi_cache;
2448 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
2449 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
2451 hash = ooc->ooc_pos_preload;
2456 * Set the OSD layer iteration start position as the specified hash.
2458 static int osd_otable_it_load(const struct lu_env *env,
2459 const struct dt_it *di, __u64 hash)
2461 struct osd_otable_it *it = (struct osd_otable_it *)di;
2462 struct osd_device *dev = it->ooi_dev;
2463 struct osd_otable_cache *ooc = &it->ooi_cache;
2464 struct osd_scrub *scrub = &dev->od_scrub;
2468 /* Forbid to set iteration position after iteration started. */
2469 if (it->ooi_user_ready)
2472 if (hash > OSD_OTABLE_MAX_HASH)
2473 hash = OSD_OTABLE_MAX_HASH;
2475 ooc->ooc_pos_preload = hash;
2476 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
2477 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
2479 it->ooi_user_ready = 1;
2480 if (!scrub->os_full_speed)
2481 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2483 /* Unplug OSD layer iteration by the first next() call. */
2484 rc = osd_otable_it_next(env, (struct dt_it *)it);
2489 static int osd_otable_it_key_rec(const struct lu_env *env,
2490 const struct dt_it *di, void *key_rec)
2495 const struct dt_index_operations osd_otable_ops = {
2497 .init = osd_otable_it_init,
2498 .fini = osd_otable_it_fini,
2499 .get = osd_otable_it_get,
2500 .put = osd_otable_it_put,
2501 .next = osd_otable_it_next,
2502 .key = osd_otable_it_key,
2503 .key_size = osd_otable_it_key_size,
2504 .rec = osd_otable_it_rec,
2505 .store = osd_otable_it_store,
2506 .load = osd_otable_it_load,
2507 .key_rec = osd_otable_it_key_rec,
2511 /* high priority inconsistent items list APIs */
2513 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
2516 struct osd_inconsistent_item *oii;
2517 struct osd_scrub *scrub = &dev->od_scrub;
2518 struct ptlrpc_thread *thread = &scrub->os_thread;
2523 if (unlikely(oii == NULL))
2526 INIT_LIST_HEAD(&oii->oii_list);
2527 oii->oii_cache = *oic;
2528 oii->oii_insert = insert;
2530 spin_lock(&scrub->os_lock);
2531 if (unlikely(!thread_is_running(thread))) {
2532 spin_unlock(&scrub->os_lock);
2537 if (list_empty(&scrub->os_inconsistent_items))
2539 list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
2540 spin_unlock(&scrub->os_lock);
2543 wake_up_all(&thread->t_ctl_waitq);
2548 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
2549 struct osd_inode_id *id)
2551 struct osd_scrub *scrub = &dev->od_scrub;
2552 struct osd_inconsistent_item *oii;
2555 spin_lock(&scrub->os_lock);
2556 list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
2557 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
2558 *id = oii->oii_cache.oic_lid;
2559 spin_unlock(&scrub->os_lock);
2563 spin_unlock(&scrub->os_lock);
2570 static const char *scrub_status_names[] = {
2581 static const char *scrub_flags_names[] = {
2589 static const char *scrub_param_names[] = {
2595 static int scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
2602 rc = seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
2606 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
2609 rc = seq_printf(m, "%s%c", names[i],
2610 bits != 0 ? ',' : '\n');
2618 static int scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
2623 rc = seq_printf(m, "%s: "LPU64" seconds\n", prefix,
2624 cfs_time_current_sec() - time);
2626 rc = seq_printf(m, "%s: N/A\n", prefix);
2630 static int scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
2635 rc = seq_printf(m, "%s: "LPU64"\n", prefix, pos);
2637 rc = seq_printf(m, "%s: N/A\n", prefix);
2641 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
2643 struct osd_scrub *scrub = &dev->od_scrub;
2644 struct scrub_file *sf = &scrub->os_file;
2649 down_read(&scrub->os_rwsem);
2650 rc = seq_printf(m, "name: OI_scrub\n"
2654 sf->sf_magic, (int)sf->sf_oi_count,
2655 scrub_status_names[sf->sf_status]);
2659 rc = scrub_bits_dump(m, sf->sf_flags, scrub_flags_names,
2664 rc = scrub_bits_dump(m, sf->sf_param, scrub_param_names,
2669 rc = scrub_time_dump(m, sf->sf_time_last_complete,
2670 "time_since_last_completed");
2674 rc = scrub_time_dump(m, sf->sf_time_latest_start,
2675 "time_since_latest_start");
2679 rc = scrub_time_dump(m, sf->sf_time_last_checkpoint,
2680 "time_since_last_checkpoint");
2684 rc = scrub_pos_dump(m, sf->sf_pos_latest_start,
2685 "latest_start_position");
2689 rc = scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
2690 "last_checkpoint_position");
2694 rc = scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
2695 "first_failure_position");
2699 checked = sf->sf_items_checked + scrub->os_new_checked;
2700 rc = seq_printf(m, "checked: "LPU64"\n"
2701 "updated: "LPU64"\n"
2703 "prior_updated: "LPU64"\n"
2704 "noscrub: "LPU64"\n"
2706 "success_count: %u\n",
2707 checked, sf->sf_items_updated, sf->sf_items_failed,
2708 sf->sf_items_updated_prior, sf->sf_items_noscrub,
2709 sf->sf_items_igif, sf->sf_success_count);
2714 if (thread_is_running(&scrub->os_thread)) {
2715 cfs_duration_t duration = cfs_time_current() -
2716 scrub->os_time_last_checkpoint;
2717 __u64 new_checked = scrub->os_new_checked * HZ;
2718 __u32 rtime = sf->sf_run_time +
2719 cfs_duration_sec(duration + HALF_SEC);
2722 do_div(new_checked, duration);
2724 do_div(speed, rtime);
2725 rc = seq_printf(m, "run_time: %u seconds\n"
2726 "average_speed: "LPU64" objects/sec\n"
2727 "real-time_speed: "LPU64" objects/sec\n"
2728 "current_position: %u\n"
2729 "lf_scanned: "LPU64"\n"
2730 "lf_reparied: "LPU64"\n"
2731 "lf_failed: "LPU64"\n",
2732 rtime, speed, new_checked, scrub->os_pos_current,
2733 scrub->os_lf_scanned, scrub->os_lf_repaired,
2734 scrub->os_lf_failed);
2736 if (sf->sf_run_time != 0)
2737 do_div(speed, sf->sf_run_time);
2738 rc = seq_printf(m, "run_time: %u seconds\n"
2739 "average_speed: "LPU64" objects/sec\n"
2740 "real-time_speed: N/A\n"
2741 "current_position: N/A\n"
2742 "lf_scanned: "LPU64"\n"
2743 "lf_reparied: "LPU64"\n"
2744 "lf_failed: "LPU64"\n",
2745 sf->sf_run_time, speed, scrub->os_lf_scanned,
2746 scrub->os_lf_repaired, scrub->os_lf_failed);
2750 up_read(&scrub->os_rwsem);
2751 return (rc < 0 ? -ENOSPC : 0);