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_MDS
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;
84 * update/insert/delete the specified OI mapping (@fid @id) according to the ops
86 * \retval 1, changed nothing
87 * \retval 0, changed successfully
88 * \retval -ve, on error
90 static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
91 struct osd_device *dev,
92 const struct lu_fid *fid,
93 const struct osd_inode_id *id,
95 enum oi_check_flags flags)
101 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN && !force)
104 /* DTO_INDEX_INSERT is enough for other two ops:
105 * delete/update, but save stack. */
106 th = ldiskfs_journal_start_sb(osd_sb(dev),
107 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
110 CERROR("%s: fail to start trans for scrub %d: rc = %d\n",
111 osd_name(dev), ops, rc);
116 case DTO_INDEX_UPDATE:
117 rc = osd_oi_update(info, dev, fid, id, th, flags);
118 if (unlikely(rc == -ENOENT)) {
119 /* Some unlink thread may removed the OI mapping. */
123 case DTO_INDEX_INSERT:
124 rc = osd_oi_insert(info, dev, fid, id, th, flags);
125 if (unlikely(rc == -EEXIST)) {
127 /* XXX: There are trouble things when adding OI
128 * mapping for IGIF object, which may cause
129 * multiple objects to be mapped to the same
130 * IGIF formatted FID. Consider the following
133 * 1) The MDT is upgrading from 1.8 device.
134 * The OI scrub generates IGIF FID1 for the
135 * OBJ1 and adds the OI mapping.
137 * 2) For some reason, the OI scrub does not
138 * process all the IGIF objects completely.
140 * 3) The MDT is backuped and restored against
143 * 4) When the MDT mounts up, the OI scrub will
144 * try to rebuild the OI files. For some IGIF
145 * object, OBJ2, which was not processed by the
146 * OI scrub before the backup/restore, and the
147 * new generated IGIF formatted FID may be just
148 * the FID1, the same as OBJ1.
150 * Under such case, the OI scrub cannot know how
151 * to generate new FID for the OBJ2.
153 * Currently, we do nothing for that. One possible
154 * solution is to generate new normal FID for the
157 * Anyway, it is rare, only exists in theory. */
160 case DTO_INDEX_DELETE:
161 rc = osd_oi_delete(info, dev, fid, th, flags);
163 /* It is normal that the unlink thread has removed the
164 * OI mapping already. */
169 LASSERTF(0, "Unexpected ops %d\n", ops);
173 ldiskfs_journal_stop(th);
177 /* OI_scrub file ops */
179 static void osd_scrub_file_to_cpu(struct scrub_file *des,
180 struct scrub_file *src)
182 memcpy(des->sf_uuid, src->sf_uuid, 16);
183 des->sf_flags = le64_to_cpu(src->sf_flags);
184 des->sf_magic = le32_to_cpu(src->sf_magic);
185 des->sf_status = le16_to_cpu(src->sf_status);
186 des->sf_param = le16_to_cpu(src->sf_param);
187 des->sf_time_last_complete =
188 le64_to_cpu(src->sf_time_last_complete);
189 des->sf_time_latest_start =
190 le64_to_cpu(src->sf_time_latest_start);
191 des->sf_time_last_checkpoint =
192 le64_to_cpu(src->sf_time_last_checkpoint);
193 des->sf_pos_latest_start =
194 le64_to_cpu(src->sf_pos_latest_start);
195 des->sf_pos_last_checkpoint =
196 le64_to_cpu(src->sf_pos_last_checkpoint);
197 des->sf_pos_first_inconsistent =
198 le64_to_cpu(src->sf_pos_first_inconsistent);
199 des->sf_items_checked =
200 le64_to_cpu(src->sf_items_checked);
201 des->sf_items_updated =
202 le64_to_cpu(src->sf_items_updated);
203 des->sf_items_failed =
204 le64_to_cpu(src->sf_items_failed);
205 des->sf_items_updated_prior =
206 le64_to_cpu(src->sf_items_updated_prior);
207 des->sf_run_time = le32_to_cpu(src->sf_run_time);
208 des->sf_success_count = le32_to_cpu(src->sf_success_count);
209 des->sf_oi_count = le16_to_cpu(src->sf_oi_count);
210 des->sf_internal_flags = le16_to_cpu(src->sf_internal_flags);
211 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
214 static void osd_scrub_file_to_le(struct scrub_file *des,
215 struct scrub_file *src)
217 memcpy(des->sf_uuid, src->sf_uuid, 16);
218 des->sf_flags = cpu_to_le64(src->sf_flags);
219 des->sf_magic = cpu_to_le32(src->sf_magic);
220 des->sf_status = cpu_to_le16(src->sf_status);
221 des->sf_param = cpu_to_le16(src->sf_param);
222 des->sf_time_last_complete =
223 cpu_to_le64(src->sf_time_last_complete);
224 des->sf_time_latest_start =
225 cpu_to_le64(src->sf_time_latest_start);
226 des->sf_time_last_checkpoint =
227 cpu_to_le64(src->sf_time_last_checkpoint);
228 des->sf_pos_latest_start =
229 cpu_to_le64(src->sf_pos_latest_start);
230 des->sf_pos_last_checkpoint =
231 cpu_to_le64(src->sf_pos_last_checkpoint);
232 des->sf_pos_first_inconsistent =
233 cpu_to_le64(src->sf_pos_first_inconsistent);
234 des->sf_items_checked =
235 cpu_to_le64(src->sf_items_checked);
236 des->sf_items_updated =
237 cpu_to_le64(src->sf_items_updated);
238 des->sf_items_failed =
239 cpu_to_le64(src->sf_items_failed);
240 des->sf_items_updated_prior =
241 cpu_to_le64(src->sf_items_updated_prior);
242 des->sf_run_time = cpu_to_le32(src->sf_run_time);
243 des->sf_success_count = cpu_to_le32(src->sf_success_count);
244 des->sf_oi_count = cpu_to_le16(src->sf_oi_count);
245 des->sf_internal_flags = cpu_to_le16(src->sf_internal_flags);
246 memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
249 static void osd_scrub_file_init(struct osd_scrub *scrub, __u8 *uuid)
251 struct scrub_file *sf = &scrub->os_file;
253 memset(sf, 0, sizeof(*sf));
254 memcpy(sf->sf_uuid, uuid, 16);
255 sf->sf_magic = SCRUB_MAGIC_V1;
256 sf->sf_status = SS_INIT;
259 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags)
261 struct scrub_file *sf = &scrub->os_file;
263 CDEBUG(D_LFSCK, "Reset OI scrub file, flags = "LPX64"\n", flags);
264 memcpy(sf->sf_uuid, uuid, 16);
265 sf->sf_status = SS_INIT;
266 sf->sf_flags |= flags;
268 sf->sf_time_latest_start = 0;
269 sf->sf_time_last_checkpoint = 0;
270 sf->sf_pos_latest_start = 0;
271 sf->sf_pos_last_checkpoint = 0;
272 sf->sf_pos_first_inconsistent = 0;
273 sf->sf_items_checked = 0;
274 sf->sf_items_updated = 0;
275 sf->sf_items_failed = 0;
276 sf->sf_items_updated_prior = 0;
277 sf->sf_items_noscrub = 0;
278 sf->sf_items_igif = 0;
281 static int osd_scrub_file_load(struct osd_scrub *scrub)
284 char *name = LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name;
285 int len = sizeof(scrub->os_file_disk);
288 rc = osd_ldiskfs_read(scrub->os_inode, &scrub->os_file_disk, len, &pos);
290 struct scrub_file *sf = &scrub->os_file;
292 osd_scrub_file_to_cpu(sf, &scrub->os_file_disk);
293 if (sf->sf_magic != SCRUB_MAGIC_V1) {
294 CWARN("%.16s: invalid scrub magic 0x%x != 0x%x\n,",
295 name, sf->sf_magic, SCRUB_MAGIC_V1);
296 /* Process it as new scrub file. */
301 } else if (rc != 0) {
302 CERROR("%.16s: fail to load scrub file, expected = %d, "
303 "rc = %d\n", name, len, rc);
307 /* return -ENOENT for empty scrub file case. */
314 int osd_scrub_file_store(struct osd_scrub *scrub)
316 struct osd_device *dev;
319 int len = sizeof(scrub->os_file_disk);
323 dev = container_of0(scrub, struct osd_device, od_scrub);
324 credits = osd_dto_credits_noquota[DTO_WRITE_BASE] +
325 osd_dto_credits_noquota[DTO_WRITE_BLOCK];
326 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, credits);
329 CERROR("%.16s: fail to start trans for scrub store, rc = %d\n",
330 LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name,rc);
334 osd_scrub_file_to_le(&scrub->os_file_disk, &scrub->os_file);
335 rc = osd_ldiskfs_write_record(scrub->os_inode, &scrub->os_file_disk,
337 ldiskfs_journal_stop(jh);
339 CERROR("%.16s: fail to store scrub file, expected = %d, "
341 LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name,
343 scrub->os_time_last_checkpoint = cfs_time_current();
344 scrub->os_time_next_checkpoint = scrub->os_time_last_checkpoint +
345 cfs_time_seconds(SCRUB_CHECKPOINT_INTERVAL);
350 osd_scrub_convert_ff(struct osd_thread_info *info, struct osd_device *dev,
351 struct inode *inode, const struct lu_fid *fid)
353 struct filter_fid_old *ff = &info->oti_ff;
354 struct dentry *dentry = &info->oti_obj_dentry;
358 bool removed = false;
362 if (dev->od_scrub.os_file.sf_param & SP_DRYRUN)
365 /* We want the LMA to fit into the 256-byte OST inode, so operate
367 * 1) read old XATTR_NAME_FID and save the parent FID;
368 * 2) delete the old XATTR_NAME_FID;
369 * 3) make new LMA and add it;
370 * 4) generate new XATTR_NAME_FID with the saved parent FID and add it.
372 * Making the LMA to fit into the 256-byte OST inode can save time for
373 * normal osd_check_lma() and for other OI scrub scanning in future.
374 * So it is worth to make some slow conversion here. */
375 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
376 osd_dto_credits_noquota[DTO_XATTR_SET] * 3);
379 CERROR("%s: fail to start trans for convert ff: "DFID
381 osd_name(dev), PFID(fid), rc);
385 /* 1) read old XATTR_NAME_FID and save the parent FID */
386 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
387 if (rc == sizeof(*ff)) {
388 /* 2) delete the old XATTR_NAME_FID */
389 ll_vfs_dq_init(inode);
390 rc = inode->i_op->removexattr(dentry, XATTR_NAME_FID);
395 } else if (unlikely(rc == -ENODATA)) {
397 } else if (rc != sizeof(struct filter_fid)) {
398 GOTO(stop, rc = -EINVAL);
401 /* 3) make new LMA and add it */
402 rc = osd_ea_fid_set(info, inode, fid, LMAC_FID_ON_OST, 0);
403 if (rc == 0 && reset)
404 size = sizeof(struct filter_fid);
405 else if (rc != 0 && removed)
406 /* If failed, we should try to add the old back. */
407 size = sizeof(struct filter_fid_old);
409 /* 4) generate new XATTR_NAME_FID with the saved parent FID and add it*/
413 rc1 = __osd_xattr_set(info, inode, XATTR_NAME_FID, ff, size,
415 if (rc1 != 0 && rc == 0)
422 ldiskfs_journal_stop(jh);
427 osd_scrub_check_update(struct osd_thread_info *info, struct osd_device *dev,
428 struct osd_idmap_cache *oic, int val)
430 struct osd_scrub *scrub = &dev->od_scrub;
431 struct scrub_file *sf = &scrub->os_file;
432 struct lu_fid *fid = &oic->oic_fid;
433 struct osd_inode_id *lid = &oic->oic_lid;
434 struct osd_inode_id *lid2 = &info->oti_id;
435 struct osd_inconsistent_item *oii = NULL;
436 struct inode *inode = NULL;
437 int ops = DTO_INDEX_UPDATE;
440 bool converted = false;
443 down_write(&scrub->os_rwsem);
444 scrub->os_new_checked++;
448 if (scrub->os_in_prior)
449 oii = cfs_list_entry(oic, struct osd_inconsistent_item,
452 if (lid->oii_ino < sf->sf_pos_latest_start && oii == NULL)
455 if (fid_is_igif(fid))
458 if (val == SCRUB_NEXT_OSTOBJ_OLD) {
459 inode = osd_iget(info, dev, lid);
462 /* Someone removed the inode. */
463 if (rc == -ENOENT || rc == -ESTALE)
468 sf->sf_flags |= SF_UPGRADE;
469 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
470 dev->od_check_ff = 1;
471 rc = osd_scrub_convert_ff(info, dev, inode, fid);
478 if ((val == SCRUB_NEXT_NOLMA) &&
479 (!scrub->os_convert_igif || OBD_FAIL_CHECK(OBD_FAIL_FID_NOLMA)))
482 if ((oii != NULL && oii->oii_insert) || (val == SCRUB_NEXT_NOLMA))
485 rc = osd_oi_lookup(info, dev, fid, lid2,
486 (val == SCRUB_NEXT_OSTOBJ ||
487 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
494 inode = osd_iget(info, dev, lid);
497 /* Someone removed the inode. */
498 if (rc == -ENOENT || rc == -ESTALE)
504 scrub->os_full_speed = 1;
505 ops = DTO_INDEX_INSERT;
506 idx = osd_oi_fid2idx(dev, fid);
508 case SCRUB_NEXT_NOLMA:
509 sf->sf_flags |= SF_UPGRADE;
510 if (!(sf->sf_param & SP_DRYRUN)) {
511 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
516 if (!(sf->sf_flags & SF_INCONSISTENT))
517 dev->od_igif_inoi = 0;
519 case SCRUB_NEXT_OSTOBJ:
520 sf->sf_flags |= SF_INCONSISTENT;
521 case SCRUB_NEXT_OSTOBJ_OLD:
524 sf->sf_flags |= SF_RECREATED;
525 if (unlikely(!ldiskfs_test_bit(idx, sf->sf_oi_bitmap)))
526 ldiskfs_set_bit(idx, sf->sf_oi_bitmap);
529 } else if (osd_id_eq(lid, lid2)) {
531 sf->sf_items_updated++;
535 scrub->os_full_speed = 1;
536 sf->sf_flags |= SF_INCONSISTENT;
538 /* XXX: If the device is restored from file-level backup, then
539 * some IGIFs may have been already in OI files, and some
540 * may be not yet. Means upgrading from 1.8 may be partly
541 * processed, but some clients may hold some immobilized
542 * IGIFs, and use them to access related objects. Under
543 * such case, OSD does not know whether an given IGIF has
544 * been processed or to be processed, and it also cannot
545 * generate local ino#/gen# directly from the immobilized
546 * IGIF because of the backup/restore. Then force OSD to
547 * lookup the given IGIF in OI files, and if no entry,
548 * then ask the client to retry after upgrading completed.
549 * No better choice. */
550 dev->od_igif_inoi = 1;
553 rc = osd_scrub_refresh_mapping(info, dev, fid, lid, ops, false,
554 (val == SCRUB_NEXT_OSTOBJ ||
555 val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
557 if (scrub->os_in_prior)
558 sf->sf_items_updated_prior++;
560 sf->sf_items_updated++;
562 /* The target has been changed, need to be re-loaded. */
563 lu_object_purge(info->oti_env, osd2lu_dev(dev), fid);
570 sf->sf_items_failed++;
571 if (sf->sf_pos_first_inconsistent == 0 ||
572 sf->sf_pos_first_inconsistent > lid->oii_ino)
573 sf->sf_pos_first_inconsistent = lid->oii_ino;
578 /* There may be conflict unlink during the OI scrub,
579 * if happend, then remove the new added OI mapping. */
580 if (ops == DTO_INDEX_INSERT && inode != NULL && !IS_ERR(inode) &&
581 unlikely(inode->i_nlink == 0))
582 osd_scrub_refresh_mapping(info, dev, fid, lid,
583 DTO_INDEX_DELETE, false,
584 (val == SCRUB_NEXT_OSTOBJ ||
585 val == SCRUB_NEXT_OSTOBJ_OLD) ?
586 OI_KNOWN_ON_OST : 0);
587 up_write(&scrub->os_rwsem);
589 if (inode != NULL && !IS_ERR(inode))
593 LASSERT(!cfs_list_empty(&oii->oii_list));
595 spin_lock(&scrub->os_lock);
596 cfs_list_del_init(&oii->oii_list);
597 spin_unlock(&scrub->os_lock);
600 RETURN(sf->sf_param & SP_FAILOUT ? rc : 0);
605 static int osd_scrub_prep(struct osd_device *dev)
607 struct osd_scrub *scrub = &dev->od_scrub;
608 struct ptlrpc_thread *thread = &scrub->os_thread;
609 struct scrub_file *sf = &scrub->os_file;
610 __u32 flags = scrub->os_start_flags;
612 bool drop_dryrun = false;
615 down_write(&scrub->os_rwsem);
616 if (flags & SS_SET_FAILOUT)
617 sf->sf_param |= SP_FAILOUT;
619 if (flags & SS_CLEAR_FAILOUT)
620 sf->sf_param &= ~SP_FAILOUT;
622 if (flags & SS_SET_DRYRUN)
623 sf->sf_param |= SP_DRYRUN;
625 if (flags & SS_CLEAR_DRYRUN && sf->sf_param & SP_DRYRUN) {
626 sf->sf_param &= ~SP_DRYRUN;
630 if (flags & SS_RESET)
631 osd_scrub_file_reset(scrub,
632 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, 0);
634 if (flags & SS_AUTO) {
635 scrub->os_full_speed = 1;
636 sf->sf_flags |= SF_AUTO;
637 /* For the case of OI scrub auto triggered, NOT dryrun. */
638 sf->sf_param &= ~SP_FAILOUT;
640 scrub->os_full_speed = 0;
643 if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
644 scrub->os_full_speed = 1;
646 scrub->os_in_prior = 0;
647 spin_lock(&scrub->os_lock);
648 scrub->os_waiting = 0;
649 scrub->os_paused = 0;
650 spin_unlock(&scrub->os_lock);
651 scrub->os_new_checked = 0;
652 if (drop_dryrun && sf->sf_pos_first_inconsistent != 0)
653 sf->sf_pos_latest_start = sf->sf_pos_first_inconsistent;
654 else if (sf->sf_pos_last_checkpoint != 0)
655 sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
657 sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
659 scrub->os_pos_current = sf->sf_pos_latest_start;
660 sf->sf_status = SS_SCANNING;
661 sf->sf_time_latest_start = cfs_time_current_sec();
662 sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
663 rc = osd_scrub_file_store(scrub);
665 spin_lock(&scrub->os_lock);
666 thread_set_flags(thread, SVC_RUNNING);
667 spin_unlock(&scrub->os_lock);
668 wake_up_all(&thread->t_ctl_waitq);
670 up_write(&scrub->os_rwsem);
675 static int osd_scrub_checkpoint(struct osd_scrub *scrub)
677 struct scrub_file *sf = &scrub->os_file;
680 if (likely(cfs_time_before(cfs_time_current(),
681 scrub->os_time_next_checkpoint) ||
682 scrub->os_new_checked == 0))
685 down_write(&scrub->os_rwsem);
686 sf->sf_items_checked += scrub->os_new_checked;
687 scrub->os_new_checked = 0;
688 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
689 sf->sf_time_last_checkpoint = cfs_time_current_sec();
690 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
691 scrub->os_time_last_checkpoint);
692 rc = osd_scrub_file_store(scrub);
693 up_write(&scrub->os_rwsem);
698 static void osd_scrub_post(struct osd_scrub *scrub, int result)
700 struct scrub_file *sf = &scrub->os_file;
703 down_write(&scrub->os_rwsem);
704 spin_lock(&scrub->os_lock);
705 thread_set_flags(&scrub->os_thread, SVC_STOPPING);
706 spin_unlock(&scrub->os_lock);
707 if (scrub->os_new_checked > 0) {
708 sf->sf_items_checked += scrub->os_new_checked;
709 scrub->os_new_checked = 0;
710 sf->sf_pos_last_checkpoint = scrub->os_pos_current;
712 sf->sf_time_last_checkpoint = cfs_time_current_sec();
714 struct osd_device *dev =
715 container_of0(scrub, struct osd_device, od_scrub);
717 dev->od_igif_inoi = 1;
718 dev->od_check_ff = 0;
719 sf->sf_status = SS_COMPLETED;
720 if (!(sf->sf_param & SP_DRYRUN)) {
721 memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
722 sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
723 SF_UPGRADE | SF_AUTO);
725 sf->sf_time_last_complete = sf->sf_time_last_checkpoint;
726 sf->sf_success_count++;
727 } else if (result == 0) {
728 if (scrub->os_paused)
729 sf->sf_status = SS_PAUSED;
731 sf->sf_status = SS_STOPPED;
733 sf->sf_status = SS_FAILED;
735 sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
736 scrub->os_time_last_checkpoint);
737 result = osd_scrub_file_store(scrub);
739 CERROR("%.16s: fail to osd_scrub_post, rc = %d\n",
740 LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name,
742 up_write(&scrub->os_rwsem);
747 /* iteration engine */
749 struct osd_iit_param {
750 struct super_block *sb;
751 struct buffer_head *bitmap;
757 typedef int (*osd_iit_next_policy)(struct osd_thread_info *info,
758 struct osd_device *dev,
759 struct osd_iit_param *param,
760 struct osd_idmap_cache **oic,
763 typedef int (*osd_iit_exec_policy)(struct osd_thread_info *info,
764 struct osd_device *dev,
765 struct osd_iit_param *param,
766 struct osd_idmap_cache *oic,
767 int *noslot, int rc);
769 static int osd_iit_next(struct osd_iit_param *param, __u32 *pos)
771 param->offset = ldiskfs_find_next_bit(param->bitmap->b_data,
772 LDISKFS_INODES_PER_GROUP(param->sb), param->offset);
773 if (param->offset >= LDISKFS_INODES_PER_GROUP(param->sb)) {
774 *pos = 1 + (param->bg+1) * LDISKFS_INODES_PER_GROUP(param->sb);
775 return SCRUB_NEXT_BREAK;
777 *pos = param->gbase + param->offset;
783 * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST
784 * \retval 0: FID-on-MDT
786 static int osd_scrub_check_local_fldb(struct osd_thread_info *info,
787 struct osd_device *dev,
790 /* XXX: The initial OI scrub will scan the top level /O to generate
791 * a small local FLDB according to the <seq>. If the given FID
792 * is in the local FLDB, then it is FID-on-OST; otherwise it's
793 * quite possible for FID-on-MDT. */
795 return SCRUB_NEXT_OSTOBJ_OLD;
800 static int osd_scrub_get_fid(struct osd_thread_info *info,
801 struct osd_device *dev, struct inode *inode,
802 struct lu_fid *fid, bool scrub)
804 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
806 bool has_lma = false;
808 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
811 if (lma->lma_compat & LMAC_NOT_IN_OI) {
812 ldiskfs_set_inode_state(inode,
813 LDISKFS_STATE_LUSTRE_NO_OI);
814 return SCRUB_NEXT_CONTINUE;
817 *fid = lma->lma_self_fid;
818 if (fid_is_internal(&lma->lma_self_fid)) {
820 rc = SCRUB_NEXT_CONTINUE;
827 if (fid_is_namespace_visible(fid) && !fid_is_norm(fid))
830 if (lma->lma_compat & LMAC_FID_ON_OST)
831 return SCRUB_NEXT_OSTOBJ;
833 if (fid_is_idif(fid) || fid_is_last_id(fid))
834 return SCRUB_NEXT_OSTOBJ_OLD;
836 if (lma->lma_incompat & LMAI_AGENT)
837 return SCRUB_NEXT_CONTINUE;
839 /* Here, it may be MDT-object, or may be 2.4 OST-object.
843 if (rc == -ENODATA || rc == 0) {
844 rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid);
847 /* It is old 2.x (x <= 3) or 1.8 OST-object. */
848 rc = SCRUB_NEXT_OSTOBJ_OLD;
854 /* It is FID-on-OST, but we do not know how
855 * to generate its FID, ignore it directly. */
856 rc = SCRUB_NEXT_CONTINUE;
858 /* It is 2.4 OST-object. */
859 rc = SCRUB_NEXT_OSTOBJ_OLD;
867 if (dev->od_scrub.os_convert_igif) {
868 lu_igif_build(fid, inode->i_ino,
869 inode->i_generation);
871 rc = SCRUB_NEXT_NOLMA;
875 /* It may be FID-on-OST, or may be FID for
876 * non-MDT0, anyway, we do not know how to
877 * generate its FID, ignore it directly. */
878 rc = SCRUB_NEXT_CONTINUE;
883 /* For OI scrub case only: the object has LMA but has no ff
884 * (or ff crashed). It may be MDT-object, may be OST-object
885 * with crashed ff. The last check is local FLDB. */
886 rc = osd_scrub_check_local_fldb(info, dev, fid);
892 static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
893 struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
894 struct super_block *sb, bool scrub)
900 osd_id_gen(lid, pos, OSD_OII_NOGEN);
901 inode = osd_iget(info, dev, lid);
904 /* The inode may be removed after bitmap searching, or the
905 * file is new created without inode initialized yet. */
906 if (rc == -ENOENT || rc == -ESTALE)
907 RETURN(SCRUB_NEXT_CONTINUE);
909 CERROR("%.16s: fail to read inode, ino# = %u, rc = %d\n",
910 LDISKFS_SB(sb)->s_es->s_volume_name, pos, rc);
914 /* If the inode has no OI mapping, then it is special locally used,
915 * should be invisible to OI scrub or up layer LFSCK. */
916 if (ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NO_OI))
917 GOTO(put, rc = SCRUB_NEXT_CONTINUE);
920 ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
921 /* Only skip it for the first OI scrub accessing. */
922 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
923 GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
926 rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
935 static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
936 struct osd_iit_param *param,
937 struct osd_idmap_cache **oic, int noslot)
939 struct osd_scrub *scrub = &dev->od_scrub;
940 struct ptlrpc_thread *thread = &scrub->os_thread;
942 struct osd_inode_id *lid;
945 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
946 struct l_wait_info lwi;
948 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
949 l_wait_event(thread->t_ctl_waitq,
950 !cfs_list_empty(&scrub->os_inconsistent_items) ||
951 !thread_is_running(thread),
955 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
956 spin_lock(&scrub->os_lock);
957 thread_set_flags(thread, SVC_STOPPING);
958 spin_unlock(&scrub->os_lock);
959 return SCRUB_NEXT_CRASH;
962 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL))
963 return SCRUB_NEXT_FATAL;
965 if (unlikely(!thread_is_running(thread)))
966 return SCRUB_NEXT_EXIT;
968 if (!cfs_list_empty(&scrub->os_inconsistent_items)) {
969 struct osd_inconsistent_item *oii;
971 oii = cfs_list_entry(scrub->os_inconsistent_items.next,
972 struct osd_inconsistent_item, oii_list);
973 *oic = &oii->oii_cache;
974 scrub->os_in_prior = 1;
979 return SCRUB_NEXT_WAIT;
981 rc = osd_iit_next(param, &scrub->os_pos_current);
985 *oic = &scrub->os_oic;
986 fid = &(*oic)->oic_fid;
987 lid = &(*oic)->oic_lid;
988 rc = osd_iit_iget(info, dev, fid, lid,
989 scrub->os_pos_current, param->sb, true);
993 static int osd_preload_next(struct osd_thread_info *info,
994 struct osd_device *dev, struct osd_iit_param *param,
995 struct osd_idmap_cache **oic, int noslot)
997 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
998 struct osd_scrub *scrub;
999 struct ptlrpc_thread *thread;
1002 rc = osd_iit_next(param, &ooc->ooc_pos_preload);
1006 scrub = &dev->od_scrub;
1007 thread = &scrub->os_thread;
1008 if (thread_is_running(thread) &&
1009 ooc->ooc_pos_preload >= scrub->os_pos_current)
1010 return SCRUB_NEXT_EXIT;
1012 rc = osd_iit_iget(info, dev,
1013 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
1014 &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
1015 ooc->ooc_pos_preload, param->sb, false);
1016 /* If succeed, it needs to move forward; otherwise up layer LFSCK may
1017 * ignore the failure, so it still need to skip the inode next time. */
1018 ooc->ooc_pos_preload = param->gbase + ++(param->offset);
1023 osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
1025 spin_lock(&scrub->os_lock);
1026 if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
1027 !cfs_list_empty(&scrub->os_inconsistent_items) ||
1028 it->ooi_waiting || !thread_is_running(&scrub->os_thread))
1029 scrub->os_waiting = 0;
1031 scrub->os_waiting = 1;
1032 spin_unlock(&scrub->os_lock);
1034 return !scrub->os_waiting;
1037 static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
1038 struct osd_iit_param *param,
1039 struct osd_idmap_cache *oic, int *noslot, int rc)
1041 struct l_wait_info lwi = { 0 };
1042 struct osd_scrub *scrub = &dev->od_scrub;
1043 struct scrub_file *sf = &scrub->os_file;
1044 struct ptlrpc_thread *thread = &scrub->os_thread;
1045 struct osd_otable_it *it = dev->od_otable_it;
1046 struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
1049 case SCRUB_NEXT_CONTINUE:
1051 case SCRUB_NEXT_WAIT:
1053 case SCRUB_NEXT_NOSCRUB:
1054 down_write(&scrub->os_rwsem);
1055 scrub->os_new_checked++;
1056 sf->sf_items_noscrub++;
1057 up_write(&scrub->os_rwsem);
1061 rc = osd_scrub_check_update(info, dev, oic, rc);
1065 rc = osd_scrub_checkpoint(scrub);
1067 CERROR("%.16s: fail to checkpoint, pos = %u, rc = %d\n",
1068 LDISKFS_SB(param->sb)->s_es->s_volume_name,
1069 scrub->os_pos_current, rc);
1070 /* Continue, as long as the scrub itself can go ahead. */
1073 if (scrub->os_in_prior) {
1074 scrub->os_in_prior = 0;
1079 scrub->os_pos_current = param->gbase + ++(param->offset);
1082 if (it != NULL && it->ooi_waiting && ooc != NULL &&
1083 ooc->ooc_pos_preload < scrub->os_pos_current) {
1084 spin_lock(&scrub->os_lock);
1085 it->ooi_waiting = 0;
1086 wake_up_all(&thread->t_ctl_waitq);
1087 spin_unlock(&scrub->os_lock);
1090 if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
1093 if (osd_scrub_has_window(scrub, ooc)) {
1098 l_wait_event(thread->t_ctl_waitq,
1099 osd_scrub_wakeup(scrub, it),
1102 if (osd_scrub_has_window(scrub, ooc))
1109 static int osd_preload_exec(struct osd_thread_info *info,
1110 struct osd_device *dev, struct osd_iit_param *param,
1111 struct osd_idmap_cache *oic, int *noslot, int rc)
1113 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1116 ooc->ooc_cached_items++;
1117 ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
1118 ~OSD_OTABLE_IT_CACHE_MASK;
1120 return rc > 0 ? 0 : rc;
1123 #define SCRUB_IT_ALL 1
1124 #define SCRUB_IT_CRASH 2
1126 static int osd_inode_iteration(struct osd_thread_info *info,
1127 struct osd_device *dev, __u32 max, bool preload)
1129 osd_iit_next_policy next;
1130 osd_iit_exec_policy exec;
1133 struct osd_iit_param param;
1140 struct osd_scrub *scrub = &dev->od_scrub;
1142 next = osd_scrub_next;
1143 exec = osd_scrub_exec;
1144 pos = &scrub->os_pos_current;
1145 count = &scrub->os_new_checked;
1147 struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
1149 next = osd_preload_next;
1150 exec = osd_preload_exec;
1151 pos = &ooc->ooc_pos_preload;
1152 count = &ooc->ooc_cached_items;
1154 param.sb = osd_sb(dev);
1155 limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
1157 while (*pos <= limit && *count < max) {
1158 struct osd_idmap_cache *oic = NULL;
1160 param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
1161 param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
1162 param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
1163 param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
1164 if (param.bitmap == NULL) {
1165 CERROR("%.16s: fail to read bitmap for %u, "
1166 "scrub will stop, urgent mode\n",
1167 LDISKFS_SB(param.sb)->s_es->s_volume_name,
1172 while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
1174 rc = next(info, dev, ¶m, &oic, noslot);
1176 case SCRUB_NEXT_BREAK:
1178 case SCRUB_NEXT_EXIT:
1179 brelse(param.bitmap);
1181 case SCRUB_NEXT_CRASH:
1182 brelse(param.bitmap);
1183 RETURN(SCRUB_IT_CRASH);
1184 case SCRUB_NEXT_FATAL:
1185 brelse(param.bitmap);
1189 rc = exec(info, dev, ¶m, oic, &noslot, rc);
1191 brelse(param.bitmap);
1197 brelse(param.bitmap);
1201 RETURN(SCRUB_IT_ALL);
1205 static int osd_otable_it_preload(const struct lu_env *env,
1206 struct osd_otable_it *it)
1208 struct osd_device *dev = it->ooi_dev;
1209 struct osd_scrub *scrub = &dev->od_scrub;
1210 struct osd_otable_cache *ooc = &it->ooi_cache;
1214 rc = osd_inode_iteration(osd_oti_get(env), dev,
1215 OSD_OTABLE_IT_CACHE_SIZE, true);
1216 if (rc == SCRUB_IT_ALL)
1217 it->ooi_all_cached = 1;
1219 CDEBUG(D_LFSCK, "OSD pre-loaded: max = %u, preload = %u, rc = %d\n",
1220 le32_to_cpu(LDISKFS_SB(osd_sb(dev))->s_es->s_inodes_count),
1221 ooc->ooc_pos_preload, rc);
1223 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
1224 spin_lock(&scrub->os_lock);
1225 scrub->os_waiting = 0;
1226 wake_up_all(&scrub->os_thread.t_ctl_waitq);
1227 spin_unlock(&scrub->os_lock);
1230 RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
1233 static int osd_scrub_main(void *args)
1236 struct osd_device *dev = (struct osd_device *)args;
1237 struct osd_scrub *scrub = &dev->od_scrub;
1238 struct ptlrpc_thread *thread = &scrub->os_thread;
1239 struct super_block *sb = osd_sb(dev);
1243 rc = lu_env_init(&env, LCT_LOCAL);
1245 CERROR("%.16s: OI scrub, fail to init env, rc = %d\n",
1246 LDISKFS_SB(sb)->s_es->s_volume_name, rc);
1250 rc = osd_scrub_prep(dev);
1252 CERROR("%.16s: OI scrub, fail to scrub prep, rc = %d\n",
1253 LDISKFS_SB(sb)->s_es->s_volume_name, rc);
1257 if (!scrub->os_full_speed) {
1258 struct l_wait_info lwi = { 0 };
1259 struct osd_otable_it *it = dev->od_otable_it;
1260 struct osd_otable_cache *ooc = &it->ooi_cache;
1262 l_wait_event(thread->t_ctl_waitq,
1263 it->ooi_user_ready || !thread_is_running(thread),
1265 if (unlikely(!thread_is_running(thread)))
1268 scrub->os_pos_current = ooc->ooc_pos_preload;
1271 CDEBUG(D_LFSCK, "OI scrub: flags = 0x%x, pos = %u\n",
1272 scrub->os_start_flags, scrub->os_pos_current);
1274 rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
1275 if (unlikely(rc == SCRUB_IT_CRASH))
1276 GOTO(out, rc = -EINVAL);
1280 osd_scrub_post(scrub, rc);
1281 CDEBUG(D_LFSCK, "OI scrub: stop, rc = %d, pos = %u\n",
1282 rc, scrub->os_pos_current);
1285 while (!cfs_list_empty(&scrub->os_inconsistent_items)) {
1286 struct osd_inconsistent_item *oii;
1288 oii = cfs_list_entry(scrub->os_inconsistent_items.next,
1289 struct osd_inconsistent_item, oii_list);
1290 cfs_list_del_init(&oii->oii_list);
1296 spin_lock(&scrub->os_lock);
1297 thread_set_flags(thread, SVC_STOPPED);
1298 wake_up_all(&thread->t_ctl_waitq);
1299 spin_unlock(&scrub->os_lock);
1303 /* initial OI scrub */
1305 typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
1306 struct dentry *, filldir_t filldir);
1308 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1309 loff_t offset, __u64 ino, unsigned d_type);
1310 static int osd_ios_lf_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 },
1423 { "lost+found", { 0, 0, 0 }, OLF_SCAN_SUBITEMS | OLF_NO_OI,
1424 osd_ios_general_scan, osd_ios_lf_fill },
1426 { NULL, { 0, 0, 0 }, 0, NULL, NULL }
1429 struct osd_ios_item {
1430 cfs_list_t oii_list;
1431 struct dentry *oii_dentry;
1432 scandir_t oii_scandir;
1433 filldir_t oii_filldir;
1436 struct osd_ios_filldir_buf {
1437 struct osd_thread_info *oifb_info;
1438 struct osd_device *oifb_dev;
1439 struct dentry *oifb_dentry;
1442 static inline struct dentry *
1443 osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
1445 struct dentry *dentry;
1447 CDEBUG(D_LFSCK, "init lookup one: parent = %.*s, name = %.*s\n",
1448 parent->d_name.len, parent->d_name.name, namelen, name);
1450 dentry = ll_lookup_one_len(name, parent, namelen);
1451 if (!IS_ERR(dentry) && dentry->d_inode == NULL) {
1453 return ERR_PTR(-ENOENT);
1460 osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
1461 scandir_t scandir, filldir_t filldir)
1463 struct osd_ios_item *item;
1466 OBD_ALLOC_PTR(item);
1470 CFS_INIT_LIST_HEAD(&item->oii_list);
1471 item->oii_dentry = dget(dentry);
1472 item->oii_scandir = scandir;
1473 item->oii_filldir = filldir;
1474 cfs_list_add_tail(&item->oii_list, &dev->od_ios_list);
1480 * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
1482 * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
1483 * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
1484 * reference the inode, or fixed if it is missing or references another inode.
1487 osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
1488 struct inode *inode, const struct lu_fid *fid, int flags)
1490 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1491 struct osd_inode_id *id = &info->oti_id;
1492 struct osd_inode_id *id2 = &info->oti_id2;
1493 struct osd_scrub *scrub = &dev->od_scrub;
1494 struct scrub_file *sf = &scrub->os_file;
1499 CDEBUG(D_LFSCK, "init scan one: ino = %ld\n", inode->i_ino);
1501 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
1502 if (rc != 0 && rc != -ENODATA)
1505 osd_id_gen(id, inode->i_ino, inode->i_generation);
1506 if (rc == -ENODATA) {
1507 if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID)
1508 lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
1511 rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
1515 if (lma->lma_compat & LMAC_NOT_IN_OI)
1518 tfid = lma->lma_self_fid;
1521 rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
1526 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1527 DTO_INDEX_INSERT, true, 0);
1534 if (osd_id_eq_strict(id, id2))
1537 if (!(sf->sf_flags & SF_INCONSISTENT)) {
1538 osd_scrub_file_reset(scrub,
1539 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1541 rc = osd_scrub_file_store(scrub);
1546 rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
1547 DTO_INDEX_UPDATE, true, 0);
1555 * It scans the /lost+found, and for the OST-object (with filter_fid
1556 * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
1558 static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
1559 loff_t offset, __u64 ino, unsigned d_type)
1561 struct osd_ios_filldir_buf *fill_buf = buf;
1562 struct osd_thread_info *info = fill_buf->oifb_info;
1563 struct osd_device *dev = fill_buf->oifb_dev;
1564 struct lu_fid *fid = &info->oti_fid;
1565 struct osd_scrub *scrub = &dev->od_scrub;
1566 struct dentry *parent = fill_buf->oifb_dentry;
1567 struct dentry *child;
1568 struct inode *dir = parent->d_inode;
1569 struct inode *inode;
1573 /* skip any '.' started names */
1577 scrub->os_lf_scanned++;
1578 child = osd_ios_lookup_one_len(name, parent, namelen);
1579 if (IS_ERR(child)) {
1580 CWARN("%s: cannot lookup child '%.*s': rc = %d\n",
1581 osd_name(dev), namelen, name, (int)PTR_ERR(child));
1585 inode = child->d_inode;
1586 if (S_ISDIR(inode->i_mode)) {
1587 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1590 CWARN("%s: cannot add child '%.*s': rc = %d\n",
1591 osd_name(dev), namelen, name, rc);
1595 if (!S_ISREG(inode->i_mode))
1598 rc = osd_scrub_get_fid(info, dev, inode, fid, true);
1599 if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
1600 rc = osd_obj_map_recover(info, dev, dir, child, fid);
1602 CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
1603 "/lost+found.\n", namelen, name, PFID(fid));
1604 scrub->os_lf_repaired++;
1606 CWARN("%s: cannot rename for '%.*s' "DFID": rc = %d\n",
1607 osd_name(dev), namelen, name, PFID(fid), rc);
1611 /* XXX: For MDT-objects, we can move them from /lost+found to namespace
1612 * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
1613 * can process them in furtuer. */
1619 scrub->os_lf_failed++;
1621 /* skip the failure to make the scanning to continue. */
1625 static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
1626 loff_t offset, __u64 ino, unsigned d_type)
1628 struct osd_ios_filldir_buf *fill_buf = buf;
1629 struct osd_device *dev = fill_buf->oifb_dev;
1630 struct dentry *child;
1634 /* skip any '.' started names */
1638 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1640 RETURN(PTR_ERR(child));
1642 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1644 if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
1645 rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
1646 osd_ios_varfid_fill);
1652 static int osd_ios_root_fill(void *buf, const char *name, int namelen,
1653 loff_t offset, __u64 ino, unsigned d_type)
1655 struct osd_ios_filldir_buf *fill_buf = buf;
1656 struct osd_device *dev = fill_buf->oifb_dev;
1657 const struct osd_lf_map *map;
1658 struct dentry *child;
1662 /* skip any '.' started names */
1666 for (map = osd_lf_maps; map->olm_name != NULL; map++) {
1667 if (strlen(map->olm_name) != namelen)
1670 if (strncmp(map->olm_name, name, namelen) == 0)
1674 if (map->olm_name == NULL)
1677 child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
1679 RETURN(PTR_ERR(child));
1681 if (!(map->olm_flags & OLF_NO_OI))
1682 rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
1683 &map->olm_fid, map->olm_flags);
1684 if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
1685 rc = osd_ios_new_item(dev, child, map->olm_scandir,
1693 osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
1694 struct dentry *dentry, filldir_t filldir)
1696 struct osd_ios_filldir_buf buf = { info, dev, dentry };
1697 struct file *filp = &info->oti_it_ea.oie_file;
1698 struct inode *inode = dentry->d_inode;
1699 const struct file_operations *fops = inode->i_fop;
1703 LASSERT(filldir != NULL);
1706 filp->f_dentry = dentry;
1707 filp->f_mode = FMODE_64BITHASH;
1708 filp->f_mapping = inode->i_mapping;
1710 filp->private_data = NULL;
1711 set_file_inode(filp, inode);
1713 rc = fops->readdir(filp, &buf, filldir);
1714 fops->release(inode, filp);
1720 osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
1721 struct dentry *dentry, filldir_t filldir)
1723 struct osd_scrub *scrub = &dev->od_scrub;
1724 struct scrub_file *sf = &scrub->os_file;
1725 struct dentry *child;
1729 /* It is existing MDT0 device. We only allow the case of object without
1730 * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
1731 * can generate IGIF mode FID for the object and related OI mapping. If
1732 * it is on other MDTs, then becuase file-level backup/restore, related
1733 * OI mapping may be invalid already, we do not know which is the right
1734 * FID for the object. We only allow IGIF objects to reside on the MDT0.
1736 * XXX: For the case of object on non-MDT0 device with neither LMA nor
1737 * "fid" xattr, then something crashed. We cannot re-generate the
1738 * FID directly, instead, the OI scrub will scan the OI structure
1739 * and try to re-generate the LMA from the OI mapping. But if the
1740 * OI mapping crashed or lost also, then we have to give up under
1741 * double failure cases. */
1742 scrub->os_convert_igif = 1;
1743 child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
1744 strlen(dot_lustre_name));
1745 if (IS_ERR(child)) {
1746 rc = PTR_ERR(child);
1747 if (rc == -ENOENT) {
1748 /* It is 1.8 MDT device. */
1749 if (!(sf->sf_flags & SF_UPGRADE)) {
1750 osd_scrub_file_reset(scrub,
1751 LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
1753 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
1754 rc = osd_scrub_file_store(scrub);
1760 /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
1761 * so the client will get IGIF for the ".lustre" object when
1764 * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
1765 * it does not know whether there are some old clients cached
1766 * the ".lustre" IGIF during the upgrading. Two choices:
1768 * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
1769 * It will allow the old connected clients to access the
1770 * ".lustre" with cached IGIF. But it will cause others
1771 * on the MDT failed to check "fid_is_dot_lustre()".
1773 * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
1774 * for ".lustre" in spite of whether there are some clients
1775 * cached the ".lustre" IGIF or not. It enables the check
1776 * "fid_is_dot_lustre()" on the MDT, although it will cause
1777 * that the old connected clients cannot access the ".lustre"
1778 * with the cached IGIF.
1780 * Usually, it is rare case for the old connected clients
1781 * to access the ".lustre" with cached IGIF. So we prefer
1782 * to the solution 2). */
1783 rc = osd_ios_scan_one(info, dev, child->d_inode,
1784 &LU_DOT_LUSTRE_FID, 0);
1792 osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
1793 struct dentry *dentry, filldir_t filldir)
1795 struct osd_scrub *scrub = &dev->od_scrub;
1796 struct scrub_file *sf = &scrub->os_file;
1797 struct dentry *child;
1801 if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
1802 sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
1803 rc = osd_scrub_file_store(scrub);
1808 child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
1809 if (!IS_ERR(child)) {
1810 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
1813 rc = PTR_ERR(child);
1816 if (rc != 0 && rc != -ENOENT)
1819 child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
1820 if (!IS_ERR(child)) {
1821 rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
1824 rc = PTR_ERR(child);
1833 static int osd_initial_OI_scrub(struct osd_thread_info *info,
1834 struct osd_device *dev)
1836 struct osd_ios_item *item = NULL;
1837 scandir_t scandir = osd_ios_general_scan;
1838 filldir_t filldir = osd_ios_root_fill;
1839 struct dentry *dentry = osd_sb(dev)->s_root;
1840 const struct osd_lf_map *map = osd_lf_maps;
1844 /* Lookup IGIF in OI by force for initial OI scrub. */
1845 dev->od_igif_inoi = 1;
1848 rc = scandir(info, dev, dentry, filldir);
1850 dput(item->oii_dentry);
1857 if (cfs_list_empty(&dev->od_ios_list))
1860 item = cfs_list_entry(dev->od_ios_list.next,
1861 struct osd_ios_item, oii_list);
1862 cfs_list_del_init(&item->oii_list);
1864 LASSERT(item->oii_scandir != NULL);
1865 scandir = item->oii_scandir;
1866 filldir = item->oii_filldir;
1867 dentry = item->oii_dentry;
1870 while (!cfs_list_empty(&dev->od_ios_list)) {
1871 item = cfs_list_entry(dev->od_ios_list.next,
1872 struct osd_ios_item, oii_list);
1873 cfs_list_del_init(&item->oii_list);
1874 dput(item->oii_dentry);
1881 /* There maybe the case that the object has been removed, but its OI
1882 * mapping is still in the OI file, such as the "CATALOGS" after MDT
1883 * file-level backup/restore. So here cleanup the stale OI mappings. */
1884 while (map->olm_name != NULL) {
1885 struct dentry *child;
1887 if (fid_is_zero(&map->olm_fid)) {
1892 child = osd_ios_lookup_one_len(map->olm_name,
1893 osd_sb(dev)->s_root,
1894 strlen(map->olm_name));
1897 else if (PTR_ERR(child) == -ENOENT)
1898 osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
1899 NULL, DTO_INDEX_DELETE,
1907 char *osd_lf_fid2name(const struct lu_fid *fid)
1909 const struct osd_lf_map *map = osd_lf_maps;
1911 while (map->olm_name != NULL) {
1912 if (!lu_fid_eq(fid, &map->olm_fid)) {
1917 if (map->olm_flags & OLF_SHOW_NAME)
1918 return map->olm_name;
1926 /* OI scrub start/stop */
1928 static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
1930 struct osd_scrub *scrub = &dev->od_scrub;
1931 struct ptlrpc_thread *thread = &scrub->os_thread;
1932 struct l_wait_info lwi = { 0 };
1937 /* os_lock: sync status between stop and scrub thread */
1938 spin_lock(&scrub->os_lock);
1939 if (thread_is_running(thread)) {
1940 spin_unlock(&scrub->os_lock);
1942 } else if (unlikely(thread_is_stopping(thread))) {
1943 spin_unlock(&scrub->os_lock);
1944 l_wait_event(thread->t_ctl_waitq,
1945 thread_is_stopped(thread),
1949 spin_unlock(&scrub->os_lock);
1951 if (scrub->os_file.sf_status == SS_COMPLETED)
1954 scrub->os_start_flags = flags;
1955 thread_set_flags(thread, 0);
1956 rc = PTR_ERR(kthread_run(osd_scrub_main, dev, "OI_scrub"));
1957 if (IS_ERR_VALUE(rc)) {
1958 CERROR("%.16s: cannot start iteration thread, rc = %d\n",
1959 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name, rc);
1963 l_wait_event(thread->t_ctl_waitq,
1964 thread_is_running(thread) || thread_is_stopped(thread),
1970 int osd_scrub_start(struct osd_device *dev)
1975 /* od_otable_mutex: prevent curcurrent start/stop */
1976 mutex_lock(&dev->od_otable_mutex);
1977 rc = do_osd_scrub_start(dev, SS_AUTO);
1978 mutex_unlock(&dev->od_otable_mutex);
1980 RETURN(rc == -EALREADY ? 0 : rc);
1983 static void do_osd_scrub_stop(struct osd_scrub *scrub)
1985 struct ptlrpc_thread *thread = &scrub->os_thread;
1986 struct l_wait_info lwi = { 0 };
1988 /* os_lock: sync status between stop and scrub thread */
1989 spin_lock(&scrub->os_lock);
1990 if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
1991 thread_set_flags(thread, SVC_STOPPING);
1992 spin_unlock(&scrub->os_lock);
1993 wake_up_all(&thread->t_ctl_waitq);
1994 l_wait_event(thread->t_ctl_waitq,
1995 thread_is_stopped(thread),
1997 /* Do not skip the last lock/unlock, which can guarantee that
1998 * the caller cannot return until the OI scrub thread exit. */
1999 spin_lock(&scrub->os_lock);
2001 spin_unlock(&scrub->os_lock);
2004 static void osd_scrub_stop(struct osd_device *dev)
2006 /* od_otable_mutex: prevent curcurrent start/stop */
2007 mutex_lock(&dev->od_otable_mutex);
2008 dev->od_scrub.os_paused = 1;
2009 do_osd_scrub_stop(&dev->od_scrub);
2010 mutex_unlock(&dev->od_otable_mutex);
2013 /* OI scrub setup/cleanup */
2015 static const char osd_scrub_name[] = "OI_scrub";
2017 int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
2019 struct osd_thread_info *info = osd_oti_get(env);
2020 struct osd_scrub *scrub = &dev->od_scrub;
2021 struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
2022 struct scrub_file *sf = &scrub->os_file;
2023 struct super_block *sb = osd_sb(dev);
2024 struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
2025 struct lvfs_run_ctxt saved;
2027 struct inode *inode;
2028 struct lu_fid *fid = &info->oti_fid;
2033 memset(scrub, 0, sizeof(*scrub));
2034 OBD_SET_CTXT_MAGIC(ctxt);
2035 ctxt->pwdmnt = dev->od_mnt;
2036 ctxt->pwd = dev->od_mnt->mnt_root;
2037 ctxt->fs = get_ds();
2039 init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
2040 init_rwsem(&scrub->os_rwsem);
2041 spin_lock_init(&scrub->os_lock);
2042 CFS_INIT_LIST_HEAD(&scrub->os_inconsistent_items);
2044 push_ctxt(&saved, ctxt);
2045 filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
2047 pop_ctxt(&saved, ctxt);
2048 RETURN(PTR_ERR(filp));
2051 inode = filp->f_dentry->d_inode;
2052 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NO_OI);
2053 /* 'What the @fid is' is not imporatant, because the object
2054 * has no OI mapping, and only is visible inside the OSD.*/
2055 lu_igif_build(fid, inode->i_ino, inode->i_generation);
2056 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
2058 filp_close(filp, 0);
2059 pop_ctxt(&saved, ctxt);
2063 scrub->os_inode = igrab(inode);
2064 filp_close(filp, 0);
2065 pop_ctxt(&saved, ctxt);
2067 rc = osd_scrub_file_load(scrub);
2068 if (rc == -ENOENT) {
2069 osd_scrub_file_init(scrub, es->s_uuid);
2070 /* If the "/O" dir does not exist when mount (indicated by
2071 * osd_device::od_maybe_new), neither for the "/OI_scrub",
2072 * then it is quite probably that the device is a new one,
2073 * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
2075 * For the rare case that "/O" and "OI_scrub" both lost on
2076 * an old device, it can be found and cleared later.
2078 * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
2079 * need to check "filter_fid_old" and to convert it to
2080 * "filter_fid" for each object, and all the IGIF should
2081 * have their FID mapping in OI files already. */
2082 if (dev->od_maybe_new)
2083 sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
2085 } else if (rc != 0) {
2088 if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) {
2089 osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT);
2091 } else if (sf->sf_status == SS_SCANNING) {
2092 sf->sf_status = SS_CRASHED;
2097 if (sf->sf_pos_last_checkpoint != 0)
2098 scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
2100 scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
2103 rc = osd_scrub_file_store(scrub);
2108 /* Initialize OI files. */
2109 rc = osd_oi_init(info, dev);
2113 rc = osd_initial_OI_scrub(info, dev);
2115 if (sf->sf_flags & SF_UPGRADE ||
2116 !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
2117 sf->sf_success_count > 0)) {
2118 dev->od_igif_inoi = 0;
2119 dev->od_check_ff = dev->od_is_ost;
2121 dev->od_igif_inoi = 1;
2122 dev->od_check_ff = 0;
2125 if (sf->sf_flags & SF_INCONSISTENT)
2126 /* The 'od_igif_inoi' will be set under the
2128 * 1) new created system, or
2129 * 2) restored from file-level backup, or
2130 * 3) the upgrading completed.
2132 * The 'od_igif_inoi' may be cleared by OI scrub
2133 * later if found that the system is upgrading. */
2134 dev->od_igif_inoi = 1;
2136 if (!dev->od_noscrub &&
2137 ((sf->sf_status == SS_PAUSED) ||
2138 (sf->sf_status == SS_CRASHED &&
2139 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2140 SF_UPGRADE | SF_AUTO)) ||
2141 (sf->sf_status == SS_INIT &&
2142 sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
2144 rc = osd_scrub_start(dev);
2147 /* it is possible that dcache entries may keep objects after they are
2148 * deleted by OSD. While it looks safe this can cause object data to
2149 * stay until umount causing failures in tests calculating free space,
2150 * e.g. replay-ost-single. Since those dcache entries are not used
2151 * anymore let's just free them after use here */
2152 shrink_dcache_sb(sb);
2157 void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev)
2159 struct osd_scrub *scrub = &dev->od_scrub;
2161 LASSERT(dev->od_otable_it == NULL);
2163 if (scrub->os_inode != NULL) {
2164 osd_scrub_stop(dev);
2165 iput(scrub->os_inode);
2166 scrub->os_inode = NULL;
2168 if (dev->od_oi_table != NULL)
2169 osd_oi_fini(osd_oti_get(env), dev);
2172 /* object table based iteration APIs */
2174 static struct dt_it *osd_otable_it_init(const struct lu_env *env,
2175 struct dt_object *dt, __u32 attr,
2176 struct lustre_capa *capa)
2178 enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT;
2179 enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK;
2180 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
2181 struct osd_scrub *scrub = &dev->od_scrub;
2182 struct osd_otable_it *it;
2187 /* od_otable_mutex: prevent curcurrent init/fini */
2188 mutex_lock(&dev->od_otable_mutex);
2189 if (dev->od_otable_it != NULL)
2190 GOTO(out, it = ERR_PTR(-EALREADY));
2194 GOTO(out, it = ERR_PTR(-ENOMEM));
2196 dev->od_otable_it = it;
2198 it->ooi_cache.ooc_consumer_idx = -1;
2199 if (flags & DOIF_OUTUSED)
2200 it->ooi_used_outside = 1;
2202 if (flags & DOIF_RESET)
2205 if (valid & DOIV_ERROR_HANDLE) {
2206 if (flags & DOIF_FAILOUT)
2207 start |= SS_SET_FAILOUT;
2209 start |= SS_CLEAR_FAILOUT;
2212 if (valid & DOIV_DRYRUN) {
2213 if (flags & DOIF_DRYRUN)
2214 start |= SS_SET_DRYRUN;
2216 start |= SS_CLEAR_DRYRUN;
2219 rc = do_osd_scrub_start(dev, start);
2220 if (rc < 0 && rc != -EALREADY) {
2221 dev->od_otable_it = NULL;
2223 GOTO(out, it = ERR_PTR(rc));
2226 it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
2231 mutex_unlock(&dev->od_otable_mutex);
2232 return (struct dt_it *)it;
2235 static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di)
2237 struct osd_otable_it *it = (struct osd_otable_it *)di;
2238 struct osd_device *dev = it->ooi_dev;
2240 /* od_otable_mutex: prevent curcurrent init/fini */
2241 mutex_lock(&dev->od_otable_mutex);
2242 do_osd_scrub_stop(&dev->od_scrub);
2243 LASSERT(dev->od_otable_it == it);
2245 dev->od_otable_it = NULL;
2246 mutex_unlock(&dev->od_otable_mutex);
2250 static int osd_otable_it_get(const struct lu_env *env,
2251 struct dt_it *di, const struct dt_key *key)
2256 static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
2261 osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
2263 spin_lock(&scrub->os_lock);
2264 if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
2265 scrub->os_waiting ||
2266 !thread_is_running(&scrub->os_thread))
2267 it->ooi_waiting = 0;
2269 it->ooi_waiting = 1;
2270 spin_unlock(&scrub->os_lock);
2272 return !it->ooi_waiting;
2275 static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
2277 struct osd_otable_it *it = (struct osd_otable_it *)di;
2278 struct osd_device *dev = it->ooi_dev;
2279 struct osd_scrub *scrub = &dev->od_scrub;
2280 struct osd_otable_cache *ooc = &it->ooi_cache;
2281 struct ptlrpc_thread *thread = &scrub->os_thread;
2282 struct l_wait_info lwi = { 0 };
2286 LASSERT(it->ooi_user_ready);
2289 if (!thread_is_running(thread) && !it->ooi_used_outside)
2292 if (ooc->ooc_cached_items > 0) {
2293 ooc->ooc_cached_items--;
2294 ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) &
2295 ~OSD_OTABLE_IT_CACHE_MASK;
2299 if (it->ooi_all_cached) {
2300 l_wait_event(thread->t_ctl_waitq,
2301 !thread_is_running(thread),
2306 if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
2307 spin_lock(&scrub->os_lock);
2308 scrub->os_waiting = 0;
2309 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2310 spin_unlock(&scrub->os_lock);
2313 if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
2314 l_wait_event(thread->t_ctl_waitq,
2315 osd_otable_it_wakeup(scrub, it),
2318 if (!thread_is_running(thread) && !it->ooi_used_outside)
2321 rc = osd_otable_it_preload(env, it);
2328 static struct dt_key *osd_otable_it_key(const struct lu_env *env,
2329 const struct dt_it *di)
2334 static int osd_otable_it_key_size(const struct lu_env *env,
2335 const struct dt_it *di)
2337 return sizeof(__u64);
2340 static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
2341 struct dt_rec *rec, __u32 attr)
2343 struct osd_otable_it *it = (struct osd_otable_it *)di;
2344 struct osd_otable_cache *ooc = &it->ooi_cache;
2346 *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
2348 /* Filter out Invald FID already. */
2349 LASSERTF(fid_is_sane((struct lu_fid *)rec),
2350 "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
2351 PFID((struct lu_fid *)rec),
2352 ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
2357 static __u64 osd_otable_it_store(const struct lu_env *env,
2358 const struct dt_it *di)
2360 struct osd_otable_it *it = (struct osd_otable_it *)di;
2361 struct osd_otable_cache *ooc = &it->ooi_cache;
2364 if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
2365 hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
2367 hash = ooc->ooc_pos_preload;
2372 * Set the OSD layer iteration start position as the specified hash.
2374 static int osd_otable_it_load(const struct lu_env *env,
2375 const struct dt_it *di, __u64 hash)
2377 struct osd_otable_it *it = (struct osd_otable_it *)di;
2378 struct osd_device *dev = it->ooi_dev;
2379 struct osd_otable_cache *ooc = &it->ooi_cache;
2380 struct osd_scrub *scrub = &dev->od_scrub;
2384 /* Forbid to set iteration position after iteration started. */
2385 if (it->ooi_user_ready)
2388 if (hash > OSD_OTABLE_MAX_HASH)
2389 hash = OSD_OTABLE_MAX_HASH;
2391 ooc->ooc_pos_preload = hash;
2392 if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
2393 ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
2395 it->ooi_user_ready = 1;
2396 if (!scrub->os_full_speed)
2397 wake_up_all(&scrub->os_thread.t_ctl_waitq);
2399 /* Unplug OSD layer iteration by the first next() call. */
2400 rc = osd_otable_it_next(env, (struct dt_it *)it);
2405 static int osd_otable_it_key_rec(const struct lu_env *env,
2406 const struct dt_it *di, void *key_rec)
2411 const struct dt_index_operations osd_otable_ops = {
2413 .init = osd_otable_it_init,
2414 .fini = osd_otable_it_fini,
2415 .get = osd_otable_it_get,
2416 .put = osd_otable_it_put,
2417 .next = osd_otable_it_next,
2418 .key = osd_otable_it_key,
2419 .key_size = osd_otable_it_key_size,
2420 .rec = osd_otable_it_rec,
2421 .store = osd_otable_it_store,
2422 .load = osd_otable_it_load,
2423 .key_rec = osd_otable_it_key_rec,
2427 /* high priority inconsistent items list APIs */
2429 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
2432 struct osd_inconsistent_item *oii;
2433 struct osd_scrub *scrub = &dev->od_scrub;
2434 struct ptlrpc_thread *thread = &scrub->os_thread;
2439 if (unlikely(oii == NULL))
2442 CFS_INIT_LIST_HEAD(&oii->oii_list);
2443 oii->oii_cache = *oic;
2444 oii->oii_insert = insert;
2446 spin_lock(&scrub->os_lock);
2447 if (unlikely(!thread_is_running(thread))) {
2448 spin_unlock(&scrub->os_lock);
2453 if (cfs_list_empty(&scrub->os_inconsistent_items))
2455 cfs_list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
2456 spin_unlock(&scrub->os_lock);
2459 wake_up_all(&thread->t_ctl_waitq);
2464 int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
2465 struct osd_inode_id *id)
2467 struct osd_scrub *scrub = &dev->od_scrub;
2468 struct osd_inconsistent_item *oii;
2471 spin_lock(&scrub->os_lock);
2472 cfs_list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
2473 if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
2474 *id = oii->oii_cache.oic_lid;
2475 spin_unlock(&scrub->os_lock);
2479 spin_unlock(&scrub->os_lock);
2486 static const char *scrub_status_names[] = {
2497 static const char *scrub_flags_names[] = {
2505 static const char *scrub_param_names[] = {
2511 static int scrub_bits_dump(char **buf, int *len, int bits, const char *names[],
2519 rc = snprintf(*buf, *len, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
2525 for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
2528 rc = snprintf(*buf, *len, "%s%c", names[i],
2529 bits != 0 ? ',' : '\n');
2540 static int scrub_time_dump(char **buf, int *len, __u64 time, const char *prefix)
2545 rc = snprintf(*buf, *len, "%s: "LPU64" seconds\n", prefix,
2546 cfs_time_current_sec() - time);
2548 rc = snprintf(*buf, *len, "%s: N/A\n", prefix);
2557 static int scrub_pos_dump(char **buf, int *len, __u64 pos, const char *prefix)
2562 rc = snprintf(*buf, *len, "%s: "LPU64"\n", prefix, pos);
2564 rc = snprintf(*buf, *len, "%s: N/A\n", prefix);
2573 int osd_scrub_dump(struct osd_device *dev, char *buf, int len)
2575 struct osd_scrub *scrub = &dev->od_scrub;
2576 struct scrub_file *sf = &scrub->os_file;
2583 down_read(&scrub->os_rwsem);
2584 rc = snprintf(buf, len,
2589 sf->sf_magic, (int)sf->sf_oi_count,
2590 scrub_status_names[sf->sf_status]);
2596 rc = scrub_bits_dump(&buf, &len, sf->sf_flags, scrub_flags_names,
2601 rc = scrub_bits_dump(&buf, &len, sf->sf_param, scrub_param_names,
2606 rc = scrub_time_dump(&buf, &len, sf->sf_time_last_complete,
2607 "time_since_last_completed");
2611 rc = scrub_time_dump(&buf, &len, sf->sf_time_latest_start,
2612 "time_since_latest_start");
2616 rc = scrub_time_dump(&buf, &len, sf->sf_time_last_checkpoint,
2617 "time_since_last_checkpoint");
2621 rc = scrub_pos_dump(&buf, &len, sf->sf_pos_latest_start,
2622 "latest_start_position");
2626 rc = scrub_pos_dump(&buf, &len, sf->sf_pos_last_checkpoint,
2627 "last_checkpoint_position");
2631 rc = scrub_pos_dump(&buf, &len, sf->sf_pos_first_inconsistent,
2632 "first_failure_position");
2636 checked = sf->sf_items_checked + scrub->os_new_checked;
2637 rc = snprintf(buf, len,
2638 "checked: "LPU64"\n"
2639 "updated: "LPU64"\n"
2641 "prior_updated: "LPU64"\n"
2642 "noscrub: "LPU64"\n"
2644 "success_count: %u\n",
2645 checked, sf->sf_items_updated, sf->sf_items_failed,
2646 sf->sf_items_updated_prior, sf->sf_items_noscrub,
2647 sf->sf_items_igif, sf->sf_success_count);
2654 if (thread_is_running(&scrub->os_thread)) {
2655 cfs_duration_t duration = cfs_time_current() -
2656 scrub->os_time_last_checkpoint;
2657 __u64 new_checked = scrub->os_new_checked * HZ;
2658 __u32 rtime = sf->sf_run_time +
2659 cfs_duration_sec(duration + HALF_SEC);
2662 do_div(new_checked, duration);
2664 do_div(speed, rtime);
2665 rc = snprintf(buf, len,
2666 "run_time: %u seconds\n"
2667 "average_speed: "LPU64" objects/sec\n"
2668 "real-time_speed: "LPU64" objects/sec\n"
2669 "current_position: %u\n"
2670 "lf_scanned: "LPU64"\n"
2671 "lf_reparied: "LPU64"\n"
2672 "lf_failed: "LPU64"\n",
2673 rtime, speed, new_checked, scrub->os_pos_current,
2674 scrub->os_lf_scanned, scrub->os_lf_repaired,
2675 scrub->os_lf_failed);
2677 if (sf->sf_run_time != 0)
2678 do_div(speed, sf->sf_run_time);
2679 rc = snprintf(buf, len,
2680 "run_time: %u seconds\n"
2681 "average_speed: "LPU64" objects/sec\n"
2682 "real-time_speed: N/A\n"
2683 "current_position: N/A\n"
2684 "lf_scanned: "LPU64"\n"
2685 "lf_reparied: "LPU64"\n"
2686 "lf_failed: "LPU64"\n",
2687 sf->sf_run_time, speed, scrub->os_lf_scanned,
2688 scrub->os_lf_repaired, scrub->os_lf_failed);
2698 up_read(&scrub->os_rwsem);