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 msecs_to_jiffies(MSEC_PER_SEC >> 1)
51 #define OSD_OTABLE_MAX_HASH 0x00000000ffffffffULL
53 #define SCRUB_NEXT_BREAK 1 /* exit current loop and process next group */
54 #define SCRUB_NEXT_CONTINUE 2 /* skip current object and process next bit */
55 #define SCRUB_NEXT_EXIT 3 /* exit all the loops */
56 #define SCRUB_NEXT_WAIT 4 /* wait for free cache slot */
57 #define SCRUB_NEXT_CRASH 5 /* simulate system crash during OI scrub */
58 #define SCRUB_NEXT_FATAL 6 /* simulate failure during OI scrub */
59 #define SCRUB_NEXT_NOSCRUB 7 /* new created object, no scrub on it */
60 #define SCRUB_NEXT_NOLMA 8 /* the inode has no FID-in-LMA */
61 #define SCRUB_NEXT_OSTOBJ 9 /* for OST-object */
62 #define SCRUB_NEXT_OSTOBJ_OLD 10 /* old OST-object, no LMA or no FID-on-OST
67 static inline struct osd_device *osd_scrub2dev(struct osd_scrub *scrub)
69 return container_of0(scrub, struct osd_device, od_scrub);
72 static inline struct super_block *osd_scrub2sb(struct osd_scrub *scrub)
74 return osd_sb(osd_scrub2dev(scrub));
77 static inline int osd_scrub_has_window(struct osd_scrub *scrub,
78 struct osd_otable_cache *ooc)
80 return scrub->os_pos_current < ooc->ooc_pos_preload + SCRUB_WINDOW_SIZE;
83 static inline const char *osd_scrub2name(struct osd_scrub *scrub)
85 return LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name;
89 * update/insert/delete the specified OI mapping (@fid @id) according to the ops
91 * \retval 1, changed nothing
92 * \retval 0, changed successfully
93 * \retval -ve, on error
95 static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
96 struct osd_device *dev,
97 const struct lu_fid *fid,
98 const struct osd_inode_id *id,
100 enum oi_check_flags flags)
106 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN && !force)
109 /* DTO_INDEX_INSERT is enough for other two ops:
110 * delete/update, but save stack. */
111 th = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
112 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
115 CDEBUG(D_LFSCK, "%s: fail to start trans for scrub op %d "
116 DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
117 PFID(fid), id->oii_ino, id->oii_gen, rc);
122 case DTO_INDEX_UPDATE:
123 rc = osd_oi_update(info, dev, fid, id, th, flags);
124 if (unlikely(rc == -ENOENT)) {
125 /* Some unlink thread may removed the OI mapping. */
129 case DTO_INDEX_INSERT:
130 rc = osd_oi_insert(info, dev, fid, id, th, flags);
131 if (unlikely(rc == -EEXIST)) {
133 /* XXX: There are trouble things when adding OI
134 * mapping for IGIF object, which may cause
135 * multiple objects to be mapped to the same
136 * IGIF formatted FID. Consider the following
139 * 1) The MDT is upgrading from 1.8 device.
140 * The OI scrub generates IGIF FID1 for the
141 * OBJ1 and adds the OI mapping.
143 * 2) For some reason, the OI scrub does not
144 * process all the IGIF objects completely.
146 * 3) The MDT is backuped and restored against
149 * 4) When the MDT mounts up, the OI scrub will
150 * try to rebuild the OI files. For some IGIF
151 * object, OBJ2, which was not processed by the
152 * OI scrub before the backup/restore, and the
153 * new generated IGIF formatted FID may be just
154 * the FID1, the same as OBJ1.
156 * Under such case, the OI scrub cannot know how
157 * to generate new FID for the OBJ2.
159 * Currently, we do nothing for that. One possible
160 * solution is to generate new normal FID for the
163 * Anyway, it is rare, only exists in theory. */
166 case DTO_INDEX_DELETE:
167 rc = osd_oi_delete(info, dev, fid, th, flags);
169 /* It is normal that the unlink thread has removed the
170 * OI mapping already. */
175 LASSERTF(0, "Unexpected ops %d\n", ops);
179 ldiskfs_journal_stop(th);
181 CDEBUG(D_LFSCK, "%s: fail to refresh OI map for scrub op %d "
182 DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
183 PFID(fid), id->oii_ino, id->oii_gen, rc);
188 /* OI_scrub file ops */
190 static void osd_scrub_file_to_cpu(struct scrub_file *des,
191 struct scrub_file *src)
193 memcpy(des->sf_uuid, src->sf_uuid, 16);
194 des->sf_flags = le64_to_cpu(src->sf_flags);
195 des->sf_magic = le32_to_cpu(src->sf_magic);
196 des->sf_status = le16_to_cpu(src->sf_status);
197 des->sf_param = le16_to_cpu(src->sf_param);
198 des->sf_time_last_complete =
199 le64_to_cpu(src->sf_time_last_complete);
200 des->sf_time_latest_start =
201 le64_to_cpu(src->sf_time_latest_start);
202 des->sf_time_last_checkpoint =
203 le64_to_cpu(src->sf_time_last_checkpoint);
204 des->sf_pos_latest_start =
205 le64_to_cpu(src->sf_pos_latest_start);
206 des->sf_pos_last_checkpoint =
207 le64_to_cpu(src->sf_pos_last_checkpoint);
208 des->sf_pos_first_inconsistent =
209 le64_to_cpu(src->sf_pos_first_inconsistent);
210 des->sf_items_checked =
211 le64_to_cpu(src->sf_items_checked);
212 des->sf_items_updated =
213 le64_to_cpu(src->sf_items_updated);
214 des->sf_items_failed =
215 le64_to_cpu(src->sf_items_failed);
216 des->sf_items_updated_prior =
217 le64_to_cpu(src->sf_items_updated_prior);
218 des->sf_run_time = le32_to_cpu(src->sf_run_time);
219 des->sf_success_count = le32_to_cpu(src->sf_success_count);
220 des->sf_oi_count = le16_to_cpu(src->sf_oi_count);
221 des->sf_internal_flags = le16_to_cpu(src->sf_internal_flags);
222 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
225 static void osd_scrub_file_to_le(struct scrub_file *des,
226 struct scrub_file *src)
228 memcpy(des->sf_uuid, src->sf_uuid, 16);
229 des->sf_flags = cpu_to_le64(src->sf_flags);
230 des->sf_magic = cpu_to_le32(src->sf_magic);
231 des->sf_status = cpu_to_le16(src->sf_status);
232 des->sf_param = cpu_to_le16(src->sf_param);
233 des->sf_time_last_complete =
234 cpu_to_le64(src->sf_time_last_complete);
235 des->sf_time_latest_start =
236 cpu_to_le64(src->sf_time_latest_start);
237 des->sf_time_last_checkpoint =
238 cpu_to_le64(src->sf_time_last_checkpoint);
239 des->sf_pos_latest_start =
240 cpu_to_le64(src->sf_pos_latest_start);
241 des->sf_pos_last_checkpoint =
242 cpu_to_le64(src->sf_pos_last_checkpoint);
243 des->sf_pos_first_inconsistent =
244 cpu_to_le64(src->sf_pos_first_inconsistent);
245 des->sf_items_checked =
246 cpu_to_le64(src->sf_items_checked);
247 des->sf_items_updated =
248 cpu_to_le64(src->sf_items_updated);
249 des->sf_items_failed =
250 cpu_to_le64(src->sf_items_failed);
251 des->sf_items_updated_prior =
252 cpu_to_le64(src->sf_items_updated_prior);
253 des->sf_run_time = cpu_to_le32(src->sf_run_time);
254 des->sf_success_count = cpu_to_le32(src->sf_success_count);
255 des->sf_oi_count = cpu_to_le16(src->sf_oi_count);
256 des->sf_internal_flags = cpu_to_le16(src->sf_internal_flags);
257 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
260 static void osd_scrub_file_init(struct osd_scrub *scrub, __u8 *uuid)
262 struct scrub_file *sf = &scrub->os_file;
264 memset(sf, 0, sizeof(*sf));
265 memcpy(sf->sf_uuid, uuid, 16);
266 sf->sf_magic = SCRUB_MAGIC_V1;
267 sf->sf_status = SS_INIT;
270 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags)
272 struct scrub_file *sf = &scrub->os_file;
274 CDEBUG(D_LFSCK, "%.16s: reset OI scrub file, 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 /* Not handle the backend root object and agent parent object.
907 * They are neither visible to namespace nor have OI mappings. */
908 if (unlikely(pos == osd_sb(dev)->s_root->d_inode->i_ino ||
909 pos == osd_remote_parent_ino(dev)))
910 RETURN(SCRUB_NEXT_CONTINUE);
912 osd_id_gen(lid, pos, OSD_OII_NOGEN);
913 inode = osd_iget(info, dev, lid);
916 /* The inode may be removed after bitmap searching, or the
917 * file is new created without inode initialized yet. */
918 if (rc == -ENOENT || rc == -ESTALE)
919 RETURN(SCRUB_NEXT_CONTINUE);
921 CDEBUG(D_LFSCK, "%.16s: fail to read inode, ino# = %u: "
922 "rc = %d\n", LDISKFS_SB(sb)->s_es->s_volume_name,
928 ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
929 /* Only skip it for the first OI scrub accessing. */
930 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
931 GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
934 rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
943 static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
944 struct osd_iit_param *param,
945 struct osd_idmap_cache **oic, int noslot)
947 struct osd_scrub *scrub = &dev->od_scrub;
948 struct ptlrpc_thread *thread = &scrub->os_thread;
950 struct osd_inode_id *lid;
953 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
954 struct l_wait_info lwi;
956 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
957 l_wait_event(thread->t_ctl_waitq,
958 !list_empty(&scrub->os_inconsistent_items) ||
959 !thread_is_running(thread),
963 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
964 spin_lock(&scrub->os_lock);
965 thread_set_flags(thread, SVC_STOPPING);
966 spin_unlock(&scrub->os_lock);
967 return SCRUB_NEXT_CRASH;
970 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
971 return SCRUB_NEXT_FATAL;
973 if (unlikely(!thread_is_running(thread)))
974 return SCRUB_NEXT_EXIT;
976 if (!list_empty(&scrub->os_inconsistent_items)) {
977 struct osd_inconsistent_item *oii;
979 oii = list_entry(scrub->os_inconsistent_items.next,
980 struct osd_inconsistent_item, oii_list);
981 *oic = &oii->oii_cache;
982 scrub->os_in_prior = 1;
987 return SCRUB_NEXT_WAIT;
989 rc = osd_iit_next(param, &scrub->os_pos_current);
993 *oic = &scrub->os_oic;
994 fid = &(*oic)->oic_fid;
995 lid = &(*oic)->oic_lid;
996 rc = osd_iit_iget(info, dev, fid, lid,
997 scrub->os_pos_current, param->sb, true);
1001 static int osd_preload_next(struct osd_thread_info *info,
1002 struct osd_device *dev, struct osd_iit_param *param,
1003 struct osd_idmap_cache **oic, int noslot)
1005 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1006 struct osd_scrub *scrub;
1007 struct ptlrpc_thread *thread;
1010 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1014 scrub = &dev->od_scrub;
1015 thread = &scrub->os_thread;
1016 if (thread_is_running(thread) &&
1017 ooc->ooc_pos_preload >= scrub->os_pos_current)
1018 return SCRUB_NEXT_EXIT;
1020 rc = osd_iit_iget(info, dev,
1021 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1022 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1023 ooc->ooc_pos_preload, param->sb, false);
1024 /* If succeed, it needs to move forward; otherwise up layer LFSCK may
1025 * ignore the failure, so it still need to skip the inode next time. */
1026 ooc->ooc_pos_preload = param->gbase + ++(param->offset);
1031 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1033 spin_lock(&scrub->os_lock);
1034 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1035 !list_empty(&scrub->os_inconsistent_items) ||
1036 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1037 scrub->os_waiting = 0;
1039 scrub->os_waiting = 1;
1040 spin_unlock(&scrub->os_lock);
1042 return !scrub->os_waiting;
1045 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1046 struct osd_iit_param *param,
1047 struct osd_idmap_cache *oic, int *noslot, int rc)
1049 struct l_wait_info lwi = { 0 };
1050 struct osd_scrub *scrub = &dev->od_scrub;
1051 struct scrub_file *sf = &scrub->os_file;
1052 struct ptlrpc_thread *thread = &scrub->os_thread;
1053 struct osd_otable_it *it = dev->od_otable_it;
1054 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1057 case SCRUB_NEXT_CONTINUE:
1059 case SCRUB_NEXT_WAIT:
1061 case SCRUB_NEXT_NOSCRUB:
1062 down_write(&scrub->os_rwsem);
1063 scrub->os_new_checked++;
1064 sf->sf_items_noscrub++;
1065 up_write(&scrub->os_rwsem);
1069 rc = osd_scrub_check_update(info, dev, oic, rc);
1073 rc = osd_scrub_checkpoint(scrub);
1075 CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: "
1076 "rc = %d\n", osd_scrub2name(scrub),
1077 scrub->os_pos_current, rc);
1078 /* Continue, as long as the scrub itself can go ahead. */
1081 if (scrub->os_in_prior) {
1082 scrub->os_in_prior = 0;
1087 scrub->os_pos_current = param->gbase + ++(param->offset);
1090 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1091 ooc->ooc_pos_preload < scrub->os_pos_current) {
1092 spin_lock(&scrub->os_lock);
1093 it->ooi_waiting = 0;
1094 wake_up_all(&thread->t_ctl_waitq);
1095 spin_unlock(&scrub->os_lock);
1098 if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
1101 if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) {
1107 l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
1110 if (ooc != NULL && osd_scrub_has_window(scrub, ooc))
1117 static int osd_preload_exec(struct osd_thread_info *info,
1118 struct osd_device *dev, struct osd_iit_param *param,
1119 struct osd_idmap_cache *oic, int *noslot, int rc)
1121 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1124 ooc->ooc_cached_items++;
1125 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1126 ~OSD_OTABLE_IT_CACHE_MASK;
1128 return rc > 0 ? 0 : rc;
1131 #define SCRUB_IT_ALL 1
1132 #define SCRUB_IT_CRASH 2
1134 static int osd_inode_iteration(struct osd_thread_info *info,
1135 struct osd_device *dev, __u32 max, bool preload)
1137 osd_iit_next_policy next;
1138 osd_iit_exec_policy exec;
1141 struct osd_iit_param param;
1148 struct osd_scrub *scrub = &dev->od_scrub;
1150 next = osd_scrub_next;
1151 exec = osd_scrub_exec;
1152 pos = &scrub->os_pos_current;
1153 count = &scrub->os_new_checked;
1155 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1157 next = osd_preload_next;
1158 exec = osd_preload_exec;
1159 pos = &ooc->ooc_pos_preload;
1160 count = &ooc->ooc_cached_items;
1162 param.sb = osd_sb(dev);
1163 limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
1165 while (*pos <= limit && *count < max) {
1166 struct osd_idmap_cache *oic = NULL;
1168 param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
1169 param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
1170 param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1171 param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
1172 if (param.bitmap == NULL) {
1173 CDEBUG(D_LFSCK, "%.16s: fail to read bitmap for %u, "
1174 "scrub will stop, urgent mode\n",
1175 LDISKFS_SB(param.sb)->s_es->s_volume_name,
1180 while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
1182 rc = next(info, dev, ¶m, &oic, noslot);
1184 case SCRUB_NEXT_BREAK:
1186 case SCRUB_NEXT_EXIT:
1187 brelse(param.bitmap);
1189 case SCRUB_NEXT_CRASH:
1190 brelse(param.bitmap);
1191 RETURN(SCRUB_IT_CRASH);
1192 case SCRUB_NEXT_FATAL:
1193 brelse(param.bitmap);
1197 rc = exec(info, dev, ¶m, oic, &noslot, rc);
1199 brelse(param.bitmap);
1205 brelse(param.bitmap);
1209 RETURN(SCRUB_IT_ALL);
1213 static int osd_otable_it_preload(const struct lu_env *env,
1214 struct osd_otable_it *it)
1216 struct osd_device *dev = it->ooi_dev;
1217 struct osd_scrub *scrub = &dev->od_scrub;
1218 struct osd_otable_cache *ooc = &it->ooi_cache;
1222 rc = osd_inode_iteration(osd_oti_get(env), dev,
1223 OSD_OTABLE_IT_CACHE_SIZE, true);
1224 if (rc == SCRUB_IT_ALL)
1225 it->ooi_all_cached = 1;
1227 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1228 spin_lock(&scrub->os_lock);
1229 scrub->os_waiting = 0;
1230 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1231 spin_unlock(&scrub->os_lock);
1234 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1237 static int osd_scrub_main(void *args)
1240 struct osd_device *dev = (struct osd_device *)args;
1241 struct osd_scrub *scrub = &dev->od_scrub;
1242 struct ptlrpc_thread *thread = &scrub->os_thread;
1246 rc = lu_env_init(&env, LCT_LOCAL);
1248 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n",
1249 osd_scrub2name(scrub), rc);
1253 rc = osd_scrub_prep(dev);
1255 CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n",
1256 osd_scrub2name(scrub), rc);
1260 if (!scrub->os_full_speed) {
1261 struct l_wait_info lwi = { 0 };
1262 struct osd_otable_it *it = dev->od_otable_it;
1263 struct osd_otable_cache *ooc = &it->ooi_cache;
1265 l_wait_event(thread->t_ctl_waitq,
1266 it->ooi_user_ready || !thread_is_running(thread),
1268 if (unlikely(!thread_is_running(thread)))
1271 scrub->os_pos_current = ooc->ooc_pos_preload;
1274 CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n",
1275 osd_scrub2name(scrub), scrub->os_start_flags,
1276 scrub->os_pos_current);
1278 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1279 if (unlikely(rc == SCRUB_IT_CRASH))
1280 GOTO(out, rc = -EINVAL);
1284 osd_scrub_post(scrub, rc);
1285 CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n",
1286 osd_scrub2name(scrub), scrub->os_pos_current, rc);
1289 while (!list_empty(&scrub->os_inconsistent_items)) {
1290 struct osd_inconsistent_item *oii;
1292 oii = list_entry(scrub->os_inconsistent_items.next,
1293 struct osd_inconsistent_item, oii_list);
1294 list_del_init(&oii->oii_list);
1300 spin_lock(&scrub->os_lock);
1301 thread_set_flags(thread, SVC_STOPPED);
1302 wake_up_all(&thread->t_ctl_waitq);
1303 spin_unlock(&scrub->os_lock);
1307 /* initial OI scrub */
1309 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1310 struct dentry *, filldir_t filldir);
1312 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1313 loff_t offset, __u64 ino, unsigned d_type);
1314 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1315 loff_t offset, __u64 ino, unsigned d_type);
1316 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1317 loff_t offset, __u64 ino, unsigned d_type);
1320 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1321 struct dentry *dentry, filldir_t filldir);
1323 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1324 struct dentry *dentry, filldir_t filldir);
1327 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1328 struct dentry *dentry, filldir_t filldir);
1331 OLF_SCAN_SUBITEMS = 0x0001,
1332 OLF_HIDE_FID = 0x0002,
1333 OLF_SHOW_NAME = 0x0004,
1339 struct lu_fid olm_fid;
1341 scandir_t olm_scandir;
1342 filldir_t olm_filldir;
1345 /* Add the new introduced local files in the list in the future. */
1346 static const struct osd_lf_map osd_lf_maps[] = {
1348 { CATLIST, { FID_SEQ_LOCAL_FILE, LLOG_CATALOGS_OID, 0 }, OLF_SHOW_NAME,
1352 { MOUNT_CONFIGS_DIR, { FID_SEQ_LOCAL_FILE, MGS_CONFIGS_OID, 0 },
1353 OLF_SCAN_SUBITEMS, osd_ios_general_scan,
1354 osd_ios_varfid_fill },
1356 /* NIDTBL_VERSIONS */
1357 { MGS_NIDTBL_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1358 osd_ios_general_scan, osd_ios_varfid_fill },
1361 { "PENDING", { 0, 0, 0 }, 0, NULL, NULL },
1364 { "ROOT", { FID_SEQ_ROOT, 1, 0 },
1365 OLF_SCAN_SUBITEMS | OLF_HIDE_FID, osd_ios_ROOT_scan, NULL },
1367 /* changelog_catalog */
1368 { CHANGELOG_CATALOG, { 0, 0, 0 }, 0, NULL, NULL },
1370 /* changelog_users */
1371 { CHANGELOG_USERS, { 0, 0, 0 }, 0, NULL, NULL },
1374 { "fld", { FID_SEQ_LOCAL_FILE, FLD_INDEX_OID, 0 }, OLF_SHOW_NAME,
1378 { LAST_RCVD, { FID_SEQ_LOCAL_FILE, LAST_RECV_OID, 0 }, OLF_SHOW_NAME,
1381 /* lfsck_bookmark */
1382 { "lfsck_bookmark", { 0, 0, 0 }, 0, NULL, NULL },
1385 { LOV_OBJID, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OID, 0 }, OLF_SHOW_NAME,
1389 { LOV_OBJSEQ, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OSEQ, 0 },
1390 OLF_SHOW_NAME, NULL, NULL },
1393 { QMT_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1394 osd_ios_general_scan, osd_ios_varfid_fill },
1397 { QSD_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
1398 osd_ios_general_scan, osd_ios_varfid_fill },
1401 { "seq_ctl", { FID_SEQ_LOCAL_FILE, FID_SEQ_CTL_OID, 0 },
1402 OLF_SHOW_NAME, NULL, NULL },
1405 { "seq_srv", { FID_SEQ_LOCAL_FILE, FID_SEQ_SRV_OID, 0 },
1406 OLF_SHOW_NAME, NULL, NULL },
1409 { HEALTH_CHECK, { FID_SEQ_LOCAL_FILE, OFD_HEALTH_CHECK_OID, 0 },
1410 OLF_SHOW_NAME, NULL, NULL },
1412 /* lfsck_namespace */
1413 { "lfsck_namespace", { 0, 0, 0 }, 0, NULL, NULL },
1415 /* OBJECTS, upgrade from old device */
1416 { OBJECTS, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, osd_ios_OBJECTS_scan, NULL },
1418 /* lquota_v2.user, upgrade from old device */
1419 { "lquota_v2.user", { 0, 0, 0 }, 0, NULL, NULL },
1421 /* lquota_v2.group, upgrade from old device */
1422 { "lquota_v2.group", { 0, 0, 0 }, 0, NULL, NULL },
1424 /* LAST_GROUP, upgrade from old device */
1425 { "LAST_GROUP", { FID_SEQ_LOCAL_FILE, OFD_LAST_GROUP_OID, 0 },
1426 OLF_SHOW_NAME, NULL, NULL },
1428 /* SLAVE_LOG, llog for destroy slave stripes of striped dir */
1429 { "SLAVE_LOG", { FID_SEQ_LOCAL_FILE, SLAVE_LLOG_CATALOGS_OID, 0 },
1430 OLF_SHOW_NAME, NULL, NULL },
1433 { "lost+found", { FID_SEQ_LOCAL_FILE, OSD_LPF_OID, 0 },
1434 OLF_SCAN_SUBITEMS, osd_ios_general_scan, osd_ios_lf_fill },
1436 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1439 /* Add the new introduced files under .lustre/ in the list in the future. */
1440 static const struct osd_lf_map osd_dl_maps[] = {
1442 { "fid", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_OBF, 0 }, 0,
1445 /* .lustre/lost+found */
1446 { "lost+found", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_LPF, 0 }, 0,
1449 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1452 struct osd_ios_item {
1453 struct list_head oii_list;
1454 struct dentry *oii_dentry;
1455 scandir_t oii_scandir;
1456 filldir_t oii_filldir;
1459 struct osd_ios_filldir_buf {
1460 #ifdef HAVE_DIR_CONTEXT
1461 /* please keep it as first member */
1462 struct dir_context ctx;
1464 struct osd_thread_info *oifb_info;
1465 struct osd_device *oifb_dev;
1466 struct dentry *oifb_dentry;
1469 static inline struct dentry *
1470 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1472 struct dentry *dentry;
1474 dentry = ll_lookup_one_len(name, parent, namelen);
1475 if (!IS_ERR(dentry) && dentry->d_inode == NULL) {
1477 return ERR_PTR(-ENOENT);
1484 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1485 scandir_t scandir, filldir_t filldir)
1487 struct osd_ios_item *item;
1490 OBD_ALLOC_PTR(item);
1494 INIT_LIST_HEAD(&item->oii_list);
1495 item->oii_dentry = dget(dentry);
1496 item->oii_scandir = scandir;
1497 item->oii_filldir = filldir;
1498 list_add_tail(&item->oii_list, &dev->od_ios_list);
1504 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
1506 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
1507 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
1508 * reference the inode, or fixed if it is missing or references another inode.
1511 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
1512 struct inode *inode, const struct lu_fid *fid, int flags)
1514 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1515 struct osd_inode_id *id = &info->oti_id;
1516 struct osd_inode_id *id2 = &info->oti_id2;
1517 struct osd_scrub *scrub = &dev->od_scrub;
1518 struct scrub_file *sf = &scrub->os_file;
1523 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
1524 if (rc != 0 && rc != -ENODATA) {
1525 CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
1526 "rc = %d\n", osd_name(dev), rc);
1531 osd_id_gen(id, inode->i_ino, inode->i_generation);
1532 if (rc == -ENODATA) {
1533 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID)
1534 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
1537 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
1539 CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
1540 "scrub: rc = %d\n", osd_name(dev), rc);
1545 if (lma->lma_compat & LMAC_NOT_IN_OI)
1548 tfid = lma->lma_self_fid;
1551 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
1556 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1557 DTO_INDEX_INSERT, true, 0);
1564 if (osd_id_eq_strict(id, id2))
1567 if (!(sf->sf_flags & SF_INCONSISTENT)) {
1568 osd_scrub_file_reset(scrub,
1569 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1571 rc = osd_scrub_file_store(scrub);
1576 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1577 DTO_INDEX_UPDATE, true, 0);
1585 * It scans the /lost+found, and for the OST-object (with filter_fid
1586 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
1588 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1589 loff_t offset, __u64 ino, unsigned d_type)
1591 struct osd_ios_filldir_buf *fill_buf = buf;
1592 struct osd_thread_info *info = fill_buf->oifb_info;
1593 struct osd_device *dev = fill_buf->oifb_dev;
1594 struct lu_fid *fid = &info->oti_fid;
1595 struct osd_scrub *scrub = &dev->od_scrub;
1596 struct dentry *parent = fill_buf->oifb_dentry;
1597 struct dentry *child;
1598 struct inode *dir = parent->d_inode;
1599 struct inode *inode;
1603 /* skip any '.' started names */
1607 scrub->os_lf_scanned++;
1608 child = osd_ios_lookup_one_len(name, parent, namelen);
1609 if (IS_ERR(child)) {
1610 CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
1611 osd_name(dev), namelen, name, (int)PTR_ERR(child));
1615 inode = child->d_inode;
1616 if (S_ISDIR(inode->i_mode)) {
1617 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1620 CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
1621 "rc = %d\n", osd_name(dev), namelen, name, rc);
1625 if (!S_ISREG(inode->i_mode))
1628 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
1629 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
1630 rc = osd_obj_map_recover(info, dev, dir, child, fid);
1632 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
1633 "/lost+found.\n", namelen, name, PFID(fid));
1634 scrub->os_lf_repaired++;
1636 CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
1638 osd_name(dev), namelen, name, PFID(fid), rc);
1642 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
1643 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
1644 * can process them in furtuer. */
1650 scrub->os_lf_failed++;
1652 /* skip the failure to make the scanning to continue. */
1656 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1657 loff_t offset, __u64 ino, unsigned d_type)
1659 struct osd_ios_filldir_buf *fill_buf = buf;
1660 struct osd_device *dev = fill_buf->oifb_dev;
1661 struct dentry *child;
1665 /* skip any '.' started names */
1669 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1671 RETURN(PTR_ERR(child));
1673 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1675 if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
1676 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1677 osd_ios_varfid_fill);
1683 static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
1684 loff_t offset, __u64 ino, unsigned d_type)
1686 struct osd_ios_filldir_buf *fill_buf = buf;
1687 struct osd_device *dev = fill_buf->oifb_dev;
1688 const struct osd_lf_map *map;
1689 struct dentry *child;
1693 /* skip any '.' started names */
1697 for (map = osd_dl_maps; map->olm_name != NULL; map++) {
1698 if (strlen(map->olm_name) != namelen)
1701 if (strncmp(map->olm_name, name, namelen) == 0)
1705 if (map->olm_name == NULL)
1708 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1710 RETURN(PTR_ERR(child));
1712 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1713 &map->olm_fid, map->olm_flags);
1719 static int osd_ios_root_fill(void *buf, const char *name, int namelen,
1720 loff_t offset, __u64 ino, unsigned d_type)
1722 struct osd_ios_filldir_buf *fill_buf = buf;
1723 struct osd_device *dev = fill_buf->oifb_dev;
1724 const struct osd_lf_map *map;
1725 struct dentry *child;
1729 /* skip any '.' started names */
1733 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
1734 if (strlen(map->olm_name) != namelen)
1737 if (strncmp(map->olm_name, name, namelen) == 0)
1741 if (map->olm_name == NULL)
1744 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1746 RETURN(PTR_ERR(child));
1748 if (!(map->olm_flags & OLF_NO_OI))
1749 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1750 &map->olm_fid, map->olm_flags);
1751 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
1752 rc = osd_ios_new_item(dev, child, map->olm_scandir,
1760 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1761 struct dentry *dentry, filldir_t filldir)
1763 struct osd_ios_filldir_buf buf = {
1764 #ifdef HAVE_DIR_CONTEXT
1765 .ctx.actor = filldir,
1769 .oifb_dentry = dentry };
1770 struct file *filp = &info->oti_it_ea.oie_file;
1771 struct inode *inode = dentry->d_inode;
1772 const struct file_operations *fops = inode->i_fop;
1776 LASSERT(filldir != NULL);
1779 filp->f_dentry = dentry;
1780 filp->f_mode = FMODE_64BITHASH;
1781 filp->f_mapping = inode->i_mapping;
1783 filp->private_data = NULL;
1784 set_file_inode(filp, inode);
1786 #ifdef HAVE_DIR_CONTEXT
1787 buf.ctx.pos = filp->f_pos;
1788 rc = fops->iterate(filp, &buf.ctx);
1789 filp->f_pos = buf.ctx.pos;
1791 rc = fops->readdir(filp, &buf, filldir);
1793 fops->release(inode, filp);
1799 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1800 struct dentry *dentry, filldir_t filldir)
1802 struct osd_scrub *scrub = &dev->od_scrub;
1803 struct scrub_file *sf = &scrub->os_file;
1804 struct dentry *child;
1808 /* It is existing MDT0 device. We only allow the case of object without
1809 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
1810 * can generate IGIF mode FID for the object and related OI mapping. If
1811 * it is on other MDTs, then becuase file-level backup/restore, related
1812 * OI mapping may be invalid already, we do not know which is the right
1813 * FID for the object. We only allow IGIF objects to reside on the MDT0.
1815 * XXX: For the case of object on non-MDT0 device with neither LMA nor
1816 * "fid" xattr, then something crashed. We cannot re-generate the
1817 * FID directly, instead, the OI scrub will scan the OI structure
1818 * and try to re-generate the LMA from the OI mapping. But if the
1819 * OI mapping crashed or lost also, then we have to give up under
1820 * double failure cases. */
1821 scrub->os_convert_igif = 1;
1822 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
1823 strlen(dot_lustre_name));
1824 if (IS_ERR(child)) {
1825 rc = PTR_ERR(child);
1826 if (rc == -ENOENT) {
1827 /* It is 1.8 MDT device. */
1828 if (!(sf->sf_flags & SF_UPGRADE)) {
1829 osd_scrub_file_reset(scrub,
1830 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1832 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
1833 rc = osd_scrub_file_store(scrub);
1839 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
1840 * so the client will get IGIF for the ".lustre" object when
1843 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
1844 * it does not know whether there are some old clients cached
1845 * the ".lustre" IGIF during the upgrading. Two choices:
1847 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
1848 * It will allow the old connected clients to access the
1849 * ".lustre" with cached IGIF. But it will cause others
1850 * on the MDT failed to check "fid_is_dot_lustre()".
1852 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
1853 * for ".lustre" in spite of whether there are some clients
1854 * cached the ".lustre" IGIF or not. It enables the check
1855 * "fid_is_dot_lustre()" on the MDT, although it will cause
1856 * that the old connected clients cannot access the ".lustre"
1857 * with the cached IGIF.
1859 * Usually, it is rare case for the old connected clients
1860 * to access the ".lustre" with cached IGIF. So we prefer
1861 * to the solution 2). */
1862 rc = osd_ios_scan_one(info, dev, child->d_inode,
1863 &LU_DOT_LUSTRE_FID, 0);
1865 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1874 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1875 struct dentry *dentry, filldir_t filldir)
1877 struct osd_scrub *scrub = &dev->od_scrub;
1878 struct scrub_file *sf = &scrub->os_file;
1879 struct dentry *child;
1883 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
1884 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
1885 rc = osd_scrub_file_store(scrub);
1890 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
1891 if (!IS_ERR(child)) {
1892 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
1895 rc = PTR_ERR(child);
1898 if (rc != 0 && rc != -ENOENT)
1901 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
1902 if (!IS_ERR(child)) {
1903 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
1906 rc = PTR_ERR(child);
1915 static int osd_initial_OI_scrub(struct osd_thread_info *info,
1916 struct osd_device *dev)
1918 struct osd_ios_item *item = NULL;
1919 scandir_t scandir = osd_ios_general_scan;
1920 filldir_t filldir = osd_ios_root_fill;
1921 struct dentry *dentry = osd_sb(dev)->s_root;
1922 const struct osd_lf_map *map = osd_lf_maps;
1926 /* Lookup IGIF in OI by force for initial OI scrub. */
1927 dev->od_igif_inoi = 1;
1930 rc = scandir(info, dev, dentry, filldir);
1932 dput(item->oii_dentry);
1939 if (list_empty(&dev->od_ios_list))
1942 item = list_entry(dev->od_ios_list.next,
1943 struct osd_ios_item, oii_list);
1944 list_del_init(&item->oii_list);
1946 LASSERT(item->oii_scandir != NULL);
1947 scandir = item->oii_scandir;
1948 filldir = item->oii_filldir;
1949 dentry = item->oii_dentry;
1952 while (!list_empty(&dev->od_ios_list)) {
1953 item = list_entry(dev->od_ios_list.next,
1954 struct osd_ios_item, oii_list);
1955 list_del_init(&item->oii_list);
1956 dput(item->oii_dentry);
1963 /* There maybe the case that the object has been removed, but its OI
1964 * mapping is still in the OI file, such as the "CATALOGS" after MDT
1965 * file-level backup/restore. So here cleanup the stale OI mappings. */
1966 while (map->olm_name != NULL) {
1967 struct dentry *child;
1969 if (fid_is_zero(&map->olm_fid)) {
1974 child = osd_ios_lookup_one_len(map->olm_name,
1975 osd_sb(dev)->s_root,
1976 strlen(map->olm_name));
1979 else if (PTR_ERR(child) == -ENOENT)
1980 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
1981 NULL, DTO_INDEX_DELETE,
1989 char *osd_lf_fid2name(const struct lu_fid *fid)
1991 const struct osd_lf_map *map = osd_lf_maps;
1993 while (map->olm_name != NULL) {
1994 if (!lu_fid_eq(fid, &map->olm_fid)) {
1999 if (map->olm_flags & OLF_SHOW_NAME)
2000 return map->olm_name;
2008 /* OI scrub start/stop */
2010 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
2012 struct osd_scrub *scrub = &dev->od_scrub;
2013 struct ptlrpc_thread *thread = &scrub->os_thread;
2014 struct l_wait_info lwi = { 0 };
2015 struct task_struct *task;
2020 /* os_lock: sync status between stop and scrub thread */
2021 spin_lock(&scrub->os_lock);
2022 if (thread_is_running(thread)) {
2023 spin_unlock(&scrub->os_lock);
2025 } else if (unlikely(thread_is_stopping(thread))) {
2026 spin_unlock(&scrub->os_lock);
2027 l_wait_event(thread->t_ctl_waitq,
2028 thread_is_stopped(thread),
2032 spin_unlock(&scrub->os_lock);
2034 if (scrub->os_file.sf_status == SS_COMPLETED) {
2035 if (!(flags & SS_SET_FAILOUT))
2036 flags |= SS_CLEAR_FAILOUT;
2038 if (!(flags & SS_SET_DRYRUN))
2039 flags |= SS_CLEAR_DRYRUN;
2044 scrub->os_start_flags = flags;
2045 thread_set_flags(thread, 0);
2046 task = kthread_run(osd_scrub_main, dev, "OI_scrub");
2049 CERROR("%.16s: cannot start iteration thread: rc = %d\n",
2050 osd_scrub2name(scrub), rc);
2054 l_wait_event(thread->t_ctl_waitq,
2055 thread_is_running(thread) || thread_is_stopped(thread),
2061 int osd_scrub_start(struct osd_device *dev)
2066 /* od_otable_mutex: prevent curcurrent start/stop */
2067 mutex_lock(&dev->od_otable_mutex);
2068 rc = do_osd_scrub_start(dev, SS_AUTO);
2069 mutex_unlock(&dev->od_otable_mutex);
2071 RETURN(rc == -EALREADY ? 0 : rc);
2074 static void do_osd_scrub_stop(struct osd_scrub *scrub)
2076 struct ptlrpc_thread *thread = &scrub->os_thread;
2077 struct l_wait_info lwi = { 0 };
2079 /* os_lock: sync status between stop and scrub thread */
2080 spin_lock(&scrub->os_lock);
2081 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
2082 thread_set_flags(thread, SVC_STOPPING);
2083 spin_unlock(&scrub->os_lock);
2084 wake_up_all(&thread->t_ctl_waitq);
2085 l_wait_event(thread->t_ctl_waitq,
2086 thread_is_stopped(thread),
2088 /* Do not skip the last lock/unlock, which can guarantee that
2089 * the caller cannot return until the OI scrub thread exit. */
2090 spin_lock(&scrub->os_lock);
2092 spin_unlock(&scrub->os_lock);
2095 static void osd_scrub_stop(struct osd_device *dev)
2097 /* od_otable_mutex: prevent curcurrent start/stop */
2098 mutex_lock(&dev->od_otable_mutex);
2099 dev->od_scrub.os_paused = 1;
2100 do_osd_scrub_stop(&dev->od_scrub);
2101 mutex_unlock(&dev->od_otable_mutex);
2104 /* OI scrub setup/cleanup */
2106 static const char osd_scrub_name[] = "OI_scrub";
2108 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2110 struct osd_thread_info *info = osd_oti_get(env);
2111 struct osd_scrub *scrub = &dev->od_scrub;
2112 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2113 struct scrub_file *sf = &scrub->os_file;
2114 struct super_block *sb = osd_sb(dev);
2115 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2116 struct lvfs_run_ctxt saved;
2118 struct inode *inode;
2119 struct lu_fid *fid = &info->oti_fid;
2124 memset(scrub, 0, sizeof(*scrub));
2125 OBD_SET_CTXT_MAGIC(ctxt);
2126 ctxt->pwdmnt = dev->od_mnt;
2127 ctxt->pwd = dev->od_mnt->mnt_root;
2128 ctxt->fs = get_ds();
2130 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2131 init_rwsem(&scrub->os_rwsem);
2132 spin_lock_init(&scrub->os_lock);
2133 INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2135 push_ctxt(&saved, ctxt);
2136 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2138 pop_ctxt(&saved, ctxt);
2139 RETURN(PTR_ERR(filp));
2142 inode = filp->f_dentry->d_inode;
2143 /* 'What the @fid is' is not imporatant, because the object
2144 * has no OI mapping, and only is visible inside the OSD.*/
2145 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2146 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2148 filp_close(filp, 0);
2149 pop_ctxt(&saved, ctxt);
2153 scrub->os_inode = igrab(inode);
2154 filp_close(filp, 0);
2155 pop_ctxt(&saved, ctxt);
2157 rc = osd_scrub_file_load(scrub);
2158 if (rc == -ENOENT) {
2159 osd_scrub_file_init(scrub, es->s_uuid);
2160 /* If the "/O" dir does not exist when mount (indicated by
2161 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2162 * then it is quite probably that the device is a new one,
2163 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2165 * For the rare case that "/O" and "OI_scrub" both lost on
2166 * an old device, it can be found and cleared later.
2168 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2169 * need to check "filter_fid_old" and to convert it to
2170 * "filter_fid" for each object, and all the IGIF should
2171 * have their FID mapping in OI files already. */
2172 if (dev->od_maybe_new)
2173 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2175 } else if (rc != 0) {
2178 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2179 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2181 } else if (sf->sf_status == SS_SCANNING) {
2182 sf->sf_status = SS_CRASHED;
2187 if (sf->sf_pos_last_checkpoint != 0)
2188 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2190 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2193 rc = osd_scrub_file_store(scrub);
2198 /* Initialize OI files. */
2199 rc = osd_oi_init(info, dev);
2203 rc = osd_initial_OI_scrub(info, dev);
2205 if (sf->sf_flags & SF_UPGRADE ||
2206 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2207 sf->sf_success_count > 0)) {
2208 dev->od_igif_inoi = 0;
2209 dev->od_check_ff = dev->od_is_ost;
2211 dev->od_igif_inoi = 1;
2212 dev->od_check_ff = 0;
2215 if (sf->sf_flags & SF_INCONSISTENT)
2216 /* The 'od_igif_inoi' will be set under the
2218 * 1) new created system, or
2219 * 2) restored from file-level backup, or
2220 * 3) the upgrading completed.
2222 * The 'od_igif_inoi' may be cleared by OI scrub
2223 * later if found that the system is upgrading. */
2224 dev->od_igif_inoi = 1;
2226 if (!dev->od_noscrub &&
2227 ((sf->sf_status == SS_PAUSED) ||
2228 (sf->sf_status == SS_CRASHED &&
2229 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2230 SF_UPGRADE | SF_AUTO)) ||
2231 (sf->sf_status == SS_INIT &&
2232 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2234 rc = osd_scrub_start(dev);
2237 /* it is possible that dcache entries may keep objects after they are
2238 * deleted by OSD. While it looks safe this can cause object data to
2239 * stay until umount causing failures in tests calculating free space,
2240 * e.g. replay-ost-single. Since those dcache entries are not used
2241 * anymore let's just free them after use here */
2242 shrink_dcache_sb(sb);
2247 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2249 struct osd_scrub *scrub = &dev->od_scrub;
2251 LASSERT(dev->od_otable_it == NULL);
2253 if (scrub->os_inode != NULL) {
2254 osd_scrub_stop(dev);
2255 iput(scrub->os_inode);
2256 scrub->os_inode = NULL;
2258 if (dev->od_oi_table != NULL)
2259 osd_oi_fini(osd_oti_get(env), dev);
2262 /* object table based iteration APIs */
2264 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2265 struct dt_object *dt, __u32 attr,
2266 struct lustre_capa *capa)
2268 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2269 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2270 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2271 struct osd_scrub *scrub = &dev->od_scrub;
2272 struct osd_otable_it *it;
2277 /* od_otable_mutex: prevent curcurrent init/fini */
2278 mutex_lock(&dev->od_otable_mutex);
2279 if (dev->od_otable_it != NULL)
2280 GOTO(out, it = ERR_PTR(-EALREADY));
2284 GOTO(out, it = ERR_PTR(-ENOMEM));
2286 dev->od_otable_it = it;
2288 it->ooi_cache.ooc_consumer_idx = -1;
2289 if (flags & DOIF_OUTUSED)
2290 it->ooi_used_outside = 1;
2292 if (flags & DOIF_RESET)
2295 if (valid & DOIV_ERROR_HANDLE) {
2296 if (flags & DOIF_FAILOUT)
2297 start |= SS_SET_FAILOUT;
2299 start |= SS_CLEAR_FAILOUT;
2302 if (valid & DOIV_DRYRUN) {
2303 if (flags & DOIF_DRYRUN)
2304 start |= SS_SET_DRYRUN;
2306 start |= SS_CLEAR_DRYRUN;
2309 rc = do_osd_scrub_start(dev, start);
2310 if (rc < 0 && rc != -EALREADY) {
2311 dev->od_otable_it = NULL;
2313 GOTO(out, it = ERR_PTR(rc));
2316 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2321 mutex_unlock(&dev->od_otable_mutex);
2322 return (struct dt_it *)it;
2325 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2327 struct osd_otable_it *it = (struct osd_otable_it *)di;
2328 struct osd_device *dev = it->ooi_dev;
2330 /* od_otable_mutex: prevent curcurrent init/fini */
2331 mutex_lock(&dev->od_otable_mutex);
2332 do_osd_scrub_stop(&dev->od_scrub);
2333 LASSERT(dev->od_otable_it == it);
2335 dev->od_otable_it = NULL;
2336 mutex_unlock(&dev->od_otable_mutex);
2340 static int osd_otable_it_get(const struct lu_env *env,
2341 struct dt_it *di, const struct dt_key *key)
2346 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2351 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2353 spin_lock(&scrub->os_lock);
2354 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2355 scrub->os_waiting ||
2356 !thread_is_running(&scrub->os_thread))
2357 it->ooi_waiting = 0;
2359 it->ooi_waiting = 1;
2360 spin_unlock(&scrub->os_lock);
2362 return !it->ooi_waiting;
2365 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2367 struct osd_otable_it *it = (struct osd_otable_it *)di;
2368 struct osd_device *dev = it->ooi_dev;
2369 struct osd_scrub *scrub = &dev->od_scrub;
2370 struct osd_otable_cache *ooc = &it->ooi_cache;
2371 struct ptlrpc_thread *thread = &scrub->os_thread;
2372 struct l_wait_info lwi = { 0 };
2376 LASSERT(it->ooi_user_ready);
2379 if (!thread_is_running(thread) && !it->ooi_used_outside)
2382 if (ooc->ooc_cached_items > 0) {
2383 ooc->ooc_cached_items--;
2384 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
2385 ~OSD_OTABLE_IT_CACHE_MASK;
2389 if (it->ooi_all_cached) {
2390 l_wait_event(thread->t_ctl_waitq,
2391 !thread_is_running(thread),
2396 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
2397 spin_lock(&scrub->os_lock);
2398 scrub->os_waiting = 0;
2399 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2400 spin_unlock(&scrub->os_lock);
2403 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
2404 l_wait_event(thread->t_ctl_waitq,
2405 osd_otable_it_wakeup(scrub, it),
2408 if (!thread_is_running(thread) && !it->ooi_used_outside)
2411 rc = osd_otable_it_preload(env, it);
2418 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
2419 const struct dt_it *di)
2424 static int osd_otable_it_key_size(const struct lu_env *env,
2425 const struct dt_it *di)
2427 return sizeof(__u64);
2430 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
2431 struct dt_rec *rec, __u32 attr)
2433 struct osd_otable_it *it = (struct osd_otable_it *)di;
2434 struct osd_otable_cache *ooc = &it->ooi_cache;
2436 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
2438 /* Filter out Invald FID already. */
2439 LASSERTF(fid_is_sane((struct lu_fid *)rec),
2440 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
2441 PFID((struct lu_fid *)rec),
2442 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
2447 static __u64 osd_otable_it_store(const struct lu_env *env,
2448 const struct dt_it *di)
2450 struct osd_otable_it *it = (struct osd_otable_it *)di;
2451 struct osd_otable_cache *ooc = &it->ooi_cache;
2454 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
2455 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
2457 hash = ooc->ooc_pos_preload;
2462 * Set the OSD layer iteration start position as the specified hash.
2464 static int osd_otable_it_load(const struct lu_env *env,
2465 const struct dt_it *di, __u64 hash)
2467 struct osd_otable_it *it = (struct osd_otable_it *)di;
2468 struct osd_device *dev = it->ooi_dev;
2469 struct osd_otable_cache *ooc = &it->ooi_cache;
2470 struct osd_scrub *scrub = &dev->od_scrub;
2474 /* Forbid to set iteration position after iteration started. */
2475 if (it->ooi_user_ready)
2478 if (hash > OSD_OTABLE_MAX_HASH)
2479 hash = OSD_OTABLE_MAX_HASH;
2481 ooc->ooc_pos_preload = hash;
2482 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
2483 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
2485 it->ooi_user_ready = 1;
2486 if (!scrub->os_full_speed)
2487 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2489 /* Unplug OSD layer iteration by the first next() call. */
2490 rc = osd_otable_it_next(env, (struct dt_it *)it);
2495 static int osd_otable_it_key_rec(const struct lu_env *env,
2496 const struct dt_it *di, void *key_rec)
2501 const struct dt_index_operations osd_otable_ops = {
2503 .init = osd_otable_it_init,
2504 .fini = osd_otable_it_fini,
2505 .get = osd_otable_it_get,
2506 .put = osd_otable_it_put,
2507 .next = osd_otable_it_next,
2508 .key = osd_otable_it_key,
2509 .key_size = osd_otable_it_key_size,
2510 .rec = osd_otable_it_rec,
2511 .store = osd_otable_it_store,
2512 .load = osd_otable_it_load,
2513 .key_rec = osd_otable_it_key_rec,
2517 /* high priority inconsistent items list APIs */
2519 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
2522 struct osd_inconsistent_item *oii;
2523 struct osd_scrub *scrub = &dev->od_scrub;
2524 struct ptlrpc_thread *thread = &scrub->os_thread;
2529 if (unlikely(oii == NULL))
2532 INIT_LIST_HEAD(&oii->oii_list);
2533 oii->oii_cache = *oic;
2534 oii->oii_insert = insert;
2536 spin_lock(&scrub->os_lock);
2537 if (unlikely(!thread_is_running(thread))) {
2538 spin_unlock(&scrub->os_lock);
2543 if (list_empty(&scrub->os_inconsistent_items))
2545 list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
2546 spin_unlock(&scrub->os_lock);
2549 wake_up_all(&thread->t_ctl_waitq);
2554 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
2555 struct osd_inode_id *id)
2557 struct osd_scrub *scrub = &dev->od_scrub;
2558 struct osd_inconsistent_item *oii;
2561 spin_lock(&scrub->os_lock);
2562 list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
2563 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
2564 *id = oii->oii_cache.oic_lid;
2565 spin_unlock(&scrub->os_lock);
2569 spin_unlock(&scrub->os_lock);
2576 static const char *scrub_status_names[] = {
2587 static const char *scrub_flags_names[] = {
2595 static const char *scrub_param_names[] = {
2601 static int scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
2608 rc = seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
2612 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
2615 rc = seq_printf(m, "%s%c", names[i],
2616 bits != 0 ? ',' : '\n');
2624 static int scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
2629 rc = seq_printf(m, "%s: "LPU64" seconds\n", prefix,
2630 cfs_time_current_sec() - time);
2632 rc = seq_printf(m, "%s: N/A\n", prefix);
2636 static int scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
2641 rc = seq_printf(m, "%s: "LPU64"\n", prefix, pos);
2643 rc = seq_printf(m, "%s: N/A\n", prefix);
2647 int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
2649 struct osd_scrub *scrub = &dev->od_scrub;
2650 struct scrub_file *sf = &scrub->os_file;
2655 down_read(&scrub->os_rwsem);
2656 rc = seq_printf(m, "name: OI_scrub\n"
2660 sf->sf_magic, (int)sf->sf_oi_count,
2661 scrub_status_names[sf->sf_status]);
2665 rc = scrub_bits_dump(m, sf->sf_flags, scrub_flags_names,
2670 rc = scrub_bits_dump(m, sf->sf_param, scrub_param_names,
2675 rc = scrub_time_dump(m, sf->sf_time_last_complete,
2676 "time_since_last_completed");
2680 rc = scrub_time_dump(m, sf->sf_time_latest_start,
2681 "time_since_latest_start");
2685 rc = scrub_time_dump(m, sf->sf_time_last_checkpoint,
2686 "time_since_last_checkpoint");
2690 rc = scrub_pos_dump(m, sf->sf_pos_latest_start,
2691 "latest_start_position");
2695 rc = scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
2696 "last_checkpoint_position");
2700 rc = scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
2701 "first_failure_position");
2705 checked = sf->sf_items_checked + scrub->os_new_checked;
2706 rc = seq_printf(m, "checked: "LPU64"\n"
2707 "updated: "LPU64"\n"
2709 "prior_updated: "LPU64"\n"
2710 "noscrub: "LPU64"\n"
2712 "success_count: %u\n",
2713 checked, sf->sf_items_updated, sf->sf_items_failed,
2714 sf->sf_items_updated_prior, sf->sf_items_noscrub,
2715 sf->sf_items_igif, sf->sf_success_count);
2720 if (thread_is_running(&scrub->os_thread)) {
2721 cfs_duration_t duration = cfs_time_current() -
2722 scrub->os_time_last_checkpoint;
2723 __u64 new_checked = msecs_to_jiffies(scrub->os_new_checked *
2725 __u32 rtime = sf->sf_run_time +
2726 cfs_duration_sec(duration + HALF_SEC);
2729 do_div(new_checked, duration);
2731 do_div(speed, rtime);
2732 rc = seq_printf(m, "run_time: %u seconds\n"
2733 "average_speed: "LPU64" objects/sec\n"
2734 "real-time_speed: "LPU64" objects/sec\n"
2735 "current_position: %u\n"
2736 "lf_scanned: "LPU64"\n"
2737 "lf_reparied: "LPU64"\n"
2738 "lf_failed: "LPU64"\n",
2739 rtime, speed, new_checked, scrub->os_pos_current,
2740 scrub->os_lf_scanned, scrub->os_lf_repaired,
2741 scrub->os_lf_failed);
2743 if (sf->sf_run_time != 0)
2744 do_div(speed, sf->sf_run_time);
2745 rc = seq_printf(m, "run_time: %u seconds\n"
2746 "average_speed: "LPU64" objects/sec\n"
2747 "real-time_speed: N/A\n"
2748 "current_position: N/A\n"
2749 "lf_scanned: "LPU64"\n"
2750 "lf_reparied: "LPU64"\n"
2751 "lf_failed: "LPU64"\n",
2752 sf->sf_run_time, speed, scrub->os_lf_scanned,
2753 scrub->os_lf_repaired, scrub->os_lf_failed);
2757 up_read(&scrub->os_rwsem);
2758 return (rc < 0 ? -ENOSPC : 0);