/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 only, * as published by the Free Software Foundation. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License version 2 for more details. A copy is * included in the COPYING file that accompanied this code. * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * GPL HEADER END */ /* * Copyright (c) 2012, 2016, Intel Corporation. */ /* * lustre/osd-ldiskfs/osd_scrub.c * * Top-level entry points into osd module * * The OI scrub is used for rebuilding Object Index files when restores MDT from * file-level backup. * * The otable based iterator scans ldiskfs inode table to feed up layer LFSCK. * * Author: Fan Yong */ #define DEBUG_SUBSYSTEM S_LFSCK #include #include #include #include #include #include "osd_internal.h" #include "osd_oi.h" #include "osd_scrub.h" #define HALF_SEC msecs_to_jiffies(MSEC_PER_SEC >> 1) #define OSD_OTABLE_MAX_HASH 0x00000000ffffffffULL #define SCRUB_NEXT_BREAK 1 /* exit current loop and process next group */ #define SCRUB_NEXT_CONTINUE 2 /* skip current object and process next bit */ #define SCRUB_NEXT_EXIT 3 /* exit all the loops */ #define SCRUB_NEXT_WAIT 4 /* wait for free cache slot */ #define SCRUB_NEXT_CRASH 5 /* simulate system crash during OI scrub */ #define SCRUB_NEXT_FATAL 6 /* simulate failure during OI scrub */ #define SCRUB_NEXT_NOSCRUB 7 /* new created object, no scrub on it */ #define SCRUB_NEXT_NOLMA 8 /* the inode has no FID-in-LMA */ #define SCRUB_NEXT_OSTOBJ 9 /* for OST-object */ #define SCRUB_NEXT_OSTOBJ_OLD 10 /* old OST-object, no LMA or no FID-on-OST * flags in LMA */ /* misc functions */ static inline struct osd_device *osd_scrub2dev(struct osd_scrub *scrub) { return container_of0(scrub, struct osd_device, od_scrub); } static inline struct super_block *osd_scrub2sb(struct osd_scrub *scrub) { return osd_sb(osd_scrub2dev(scrub)); } static inline int osd_scrub_has_window(struct osd_scrub *scrub, struct osd_otable_cache *ooc) { return scrub->os_pos_current < ooc->ooc_pos_preload + SCRUB_WINDOW_SIZE; } static inline const char *osd_scrub2name(struct osd_scrub *scrub) { return LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name; } /** * update/insert/delete the specified OI mapping (@fid @id) according to the ops * * \retval 1, changed nothing * \retval 0, changed successfully * \retval -ve, on error */ static int osd_scrub_refresh_mapping(struct osd_thread_info *info, struct osd_device *dev, const struct lu_fid *fid, const struct osd_inode_id *id, int ops, bool force, enum oi_check_flags flags, bool *exist) { handle_t *th; int rc; ENTRY; if (dev->od_scrub.os_file.sf_param & SP_DRYRUN && !force) RETURN(0); /* DTO_INDEX_INSERT is enough for other two ops: * delete/update, but save stack. */ th = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, osd_dto_credits_noquota[DTO_INDEX_INSERT]); if (IS_ERR(th)) { rc = PTR_ERR(th); CDEBUG(D_LFSCK, "%s: fail to start trans for scrub op %d " DFID" => %u/%u: rc = %d\n", osd_name(dev), ops, PFID(fid), id ? id->oii_ino : -1, id ? id->oii_gen : -1, rc); RETURN(rc); } switch (ops) { case DTO_INDEX_UPDATE: rc = osd_oi_update(info, dev, fid, id, th, flags); if (unlikely(rc == -ENOENT)) { /* Some unlink thread may removed the OI mapping. */ rc = 1; } break; case DTO_INDEX_INSERT: rc = osd_oi_insert(info, dev, fid, id, th, flags, exist); if (unlikely(rc == -EEXIST)) { rc = 1; /* XXX: There are trouble things when adding OI * mapping for IGIF object, which may cause * multiple objects to be mapped to the same * IGIF formatted FID. Consider the following * situations: * * 1) The MDT is upgrading from 1.8 device. * The OI scrub generates IGIF FID1 for the * OBJ1 and adds the OI mapping. * * 2) For some reason, the OI scrub does not * process all the IGIF objects completely. * * 3) The MDT is backuped and restored against * this device. * * 4) When the MDT mounts up, the OI scrub will * try to rebuild the OI files. For some IGIF * object, OBJ2, which was not processed by the * OI scrub before the backup/restore, and the * new generated IGIF formatted FID may be just * the FID1, the same as OBJ1. * * Under such case, the OI scrub cannot know how * to generate new FID for the OBJ2. * * Currently, we do nothing for that. One possible * solution is to generate new normal FID for the * conflict object. * * Anyway, it is rare, only exists in theory. */ } break; case DTO_INDEX_DELETE: rc = osd_oi_delete(info, dev, fid, th, flags); if (rc == -ENOENT) { /* It is normal that the unlink thread has removed the * OI mapping already. */ rc = 1; } break; default: LASSERTF(0, "Unexpected ops %d\n", ops); break; } ldiskfs_journal_stop(th); if (rc < 0) CDEBUG(D_LFSCK, "%s: fail to refresh OI map for scrub op %d " DFID" => %u/%u: rc = %d\n", osd_name(dev), ops, PFID(fid), id ? id->oii_ino : -1, id ? id->oii_gen : -1, rc); RETURN(rc); } /* OI_scrub file ops */ static void osd_scrub_file_to_cpu(struct scrub_file *des, struct scrub_file *src) { memcpy(des->sf_uuid, src->sf_uuid, 16); des->sf_flags = le64_to_cpu(src->sf_flags); des->sf_magic = le32_to_cpu(src->sf_magic); des->sf_status = le16_to_cpu(src->sf_status); des->sf_param = le16_to_cpu(src->sf_param); des->sf_time_last_complete = le64_to_cpu(src->sf_time_last_complete); des->sf_time_latest_start = le64_to_cpu(src->sf_time_latest_start); des->sf_time_last_checkpoint = le64_to_cpu(src->sf_time_last_checkpoint); des->sf_pos_latest_start = le64_to_cpu(src->sf_pos_latest_start); des->sf_pos_last_checkpoint = le64_to_cpu(src->sf_pos_last_checkpoint); des->sf_pos_first_inconsistent = le64_to_cpu(src->sf_pos_first_inconsistent); des->sf_items_checked = le64_to_cpu(src->sf_items_checked); des->sf_items_updated = le64_to_cpu(src->sf_items_updated); des->sf_items_failed = le64_to_cpu(src->sf_items_failed); des->sf_items_updated_prior = le64_to_cpu(src->sf_items_updated_prior); des->sf_run_time = le32_to_cpu(src->sf_run_time); des->sf_success_count = le32_to_cpu(src->sf_success_count); des->sf_oi_count = le16_to_cpu(src->sf_oi_count); des->sf_internal_flags = le16_to_cpu(src->sf_internal_flags); memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE); } static void osd_scrub_file_to_le(struct scrub_file *des, struct scrub_file *src) { memcpy(des->sf_uuid, src->sf_uuid, 16); des->sf_flags = cpu_to_le64(src->sf_flags); des->sf_magic = cpu_to_le32(src->sf_magic); des->sf_status = cpu_to_le16(src->sf_status); des->sf_param = cpu_to_le16(src->sf_param); des->sf_time_last_complete = cpu_to_le64(src->sf_time_last_complete); des->sf_time_latest_start = cpu_to_le64(src->sf_time_latest_start); des->sf_time_last_checkpoint = cpu_to_le64(src->sf_time_last_checkpoint); des->sf_pos_latest_start = cpu_to_le64(src->sf_pos_latest_start); des->sf_pos_last_checkpoint = cpu_to_le64(src->sf_pos_last_checkpoint); des->sf_pos_first_inconsistent = cpu_to_le64(src->sf_pos_first_inconsistent); des->sf_items_checked = cpu_to_le64(src->sf_items_checked); des->sf_items_updated = cpu_to_le64(src->sf_items_updated); des->sf_items_failed = cpu_to_le64(src->sf_items_failed); des->sf_items_updated_prior = cpu_to_le64(src->sf_items_updated_prior); des->sf_run_time = cpu_to_le32(src->sf_run_time); des->sf_success_count = cpu_to_le32(src->sf_success_count); des->sf_oi_count = cpu_to_le16(src->sf_oi_count); des->sf_internal_flags = cpu_to_le16(src->sf_internal_flags); memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE); } static void osd_scrub_file_init(struct osd_scrub *scrub, __u8 *uuid) { struct scrub_file *sf = &scrub->os_file; memset(sf, 0, sizeof(*sf)); memcpy(sf->sf_uuid, uuid, 16); sf->sf_magic = SCRUB_MAGIC_V1; sf->sf_status = SS_INIT; } void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags) { struct scrub_file *sf = &scrub->os_file; CDEBUG(D_LFSCK, "%.16s: reset OI scrub file, old flags = " "%#llx, add flags = %#llx\n", osd_scrub2name(scrub), sf->sf_flags, flags); memcpy(sf->sf_uuid, uuid, 16); sf->sf_status = SS_INIT; sf->sf_flags |= flags; sf->sf_flags &= ~SF_AUTO; sf->sf_run_time = 0; sf->sf_time_latest_start = 0; sf->sf_time_last_checkpoint = 0; sf->sf_pos_latest_start = 0; sf->sf_pos_last_checkpoint = 0; sf->sf_pos_first_inconsistent = 0; sf->sf_items_checked = 0; sf->sf_items_updated = 0; sf->sf_items_failed = 0; if (!scrub->os_in_join) sf->sf_items_updated_prior = 0; sf->sf_items_noscrub = 0; sf->sf_items_igif = 0; } static int osd_scrub_file_load(struct osd_scrub *scrub) { loff_t pos = 0; int len = sizeof(scrub->os_file_disk); int rc; rc = osd_ldiskfs_read(scrub->os_inode, &scrub->os_file_disk, len, &pos); if (rc == len) { struct scrub_file *sf = &scrub->os_file; osd_scrub_file_to_cpu(sf, &scrub->os_file_disk); if (sf->sf_magic != SCRUB_MAGIC_V1) { CDEBUG(D_LFSCK, "%.16s: invalid scrub magic " "0x%x != 0x%x\n", osd_scrub2name(scrub), sf->sf_magic, SCRUB_MAGIC_V1); /* Process it as new scrub file. */ rc = -ENOENT; } else { rc = 0; } } else if (rc != 0) { CDEBUG(D_LFSCK, "%.16s: fail to load scrub file, " "expected = %d: rc = %d\n", osd_scrub2name(scrub), len, rc); if (rc > 0) rc = -EFAULT; } else { /* return -ENOENT for empty scrub file case. */ rc = -ENOENT; } return rc; } int osd_scrub_file_store(struct osd_scrub *scrub) { struct osd_device *dev; handle_t *jh; loff_t pos = 0; int len = sizeof(scrub->os_file_disk); int credits; int rc; dev = container_of0(scrub, struct osd_device, od_scrub); credits = osd_dto_credits_noquota[DTO_WRITE_BASE] + osd_dto_credits_noquota[DTO_WRITE_BLOCK]; jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, credits); if (IS_ERR(jh)) { rc = PTR_ERR(jh); CDEBUG(D_LFSCK, "%.16s: fail to start trans for scrub store: " "rc = %d\n", osd_scrub2name(scrub), rc); return rc; } osd_scrub_file_to_le(&scrub->os_file_disk, &scrub->os_file); rc = osd_ldiskfs_write_record(scrub->os_inode, &scrub->os_file_disk, len, 0, &pos, jh); ldiskfs_journal_stop(jh); if (rc != 0) CDEBUG(D_LFSCK, "%.16s: fail to store scrub file, " "expected = %d: rc = %d\n", osd_scrub2name(scrub), len, rc); scrub->os_time_last_checkpoint = cfs_time_current(); scrub->os_time_next_checkpoint = scrub->os_time_last_checkpoint + cfs_time_seconds(SCRUB_CHECKPOINT_INTERVAL); return rc; } static int osd_scrub_convert_ff(struct osd_thread_info *info, struct osd_device *dev, struct inode *inode, const struct lu_fid *fid) { struct filter_fid_old *ff = &info->oti_ff; struct dentry *dentry = &info->oti_obj_dentry; struct lu_fid *tfid = &info->oti_fid; handle_t *jh; int size = 0; int rc; bool removed = false; bool reset = true; ENTRY; if (dev->od_scrub.os_file.sf_param & SP_DRYRUN) RETURN(0); if (fid_is_idif(fid) && dev->od_index_in_idif == 0) { struct ost_id *oi = &info->oti_ostid; fid_to_ostid(fid, oi); ostid_to_fid(tfid, oi, 0); } else { *tfid = *fid; } /* We want the LMA to fit into the 256-byte OST inode, so operate * as following: * 1) read old XATTR_NAME_FID and save the parent FID; * 2) delete the old XATTR_NAME_FID; * 3) make new LMA and add it; * 4) generate new XATTR_NAME_FID with the saved parent FID and add it. * * Making the LMA to fit into the 256-byte OST inode can save time for * normal osd_check_lma() and for other OI scrub scanning in future. * So it is worth to make some slow conversion here. */ jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, osd_dto_credits_noquota[DTO_XATTR_SET] * 3); if (IS_ERR(jh)) { rc = PTR_ERR(jh); CDEBUG(D_LFSCK, "%s: fail to start trans for convert ff " DFID": rc = %d\n", osd_name(dev), PFID(tfid), rc); RETURN(rc); } /* 1) read old XATTR_NAME_FID and save the parent FID */ rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff)); if (rc == sizeof(*ff)) { /* 2) delete the old XATTR_NAME_FID */ ll_vfs_dq_init(inode); rc = inode->i_op->removexattr(dentry, XATTR_NAME_FID); if (rc != 0) GOTO(stop, rc); removed = true; } else if (unlikely(rc == -ENODATA)) { reset = false; } else if (rc != sizeof(struct filter_fid)) { GOTO(stop, rc = -EINVAL); } /* 3) make new LMA and add it */ rc = osd_ea_fid_set(info, inode, tfid, LMAC_FID_ON_OST, 0); if (rc == 0 && reset) size = sizeof(struct filter_fid); else if (rc != 0 && removed) /* If failed, we should try to add the old back. */ size = sizeof(struct filter_fid_old); /* 4) generate new XATTR_NAME_FID with the saved parent FID and add it*/ if (size > 0) { int rc1; rc1 = __osd_xattr_set(info, inode, XATTR_NAME_FID, ff, size, XATTR_CREATE); if (rc1 != 0 && rc == 0) rc = rc1; } GOTO(stop, rc); stop: ldiskfs_journal_stop(jh); if (rc < 0) CDEBUG(D_LFSCK, "%s: fail to convert ff "DFID": rc = %d\n", osd_name(dev), PFID(tfid), rc); return rc; } static int osd_scrub_check_update(struct osd_thread_info *info, struct osd_device *dev, struct osd_idmap_cache *oic, int val) { struct osd_scrub *scrub = &dev->od_scrub; struct scrub_file *sf = &scrub->os_file; struct lu_fid *fid = &oic->oic_fid; struct osd_inode_id *lid = &oic->oic_lid; struct osd_inode_id *lid2 = &info->oti_id; struct osd_inconsistent_item *oii = NULL; struct inode *inode = NULL; int ops = DTO_INDEX_UPDATE; int rc; bool converted = false; bool exist = false; ENTRY; down_write(&scrub->os_rwsem); scrub->os_new_checked++; if (val < 0) GOTO(out, rc = val); if (scrub->os_in_prior) oii = list_entry(oic, struct osd_inconsistent_item, oii_cache); if (lid->oii_ino < sf->sf_pos_latest_start && oii == NULL) GOTO(out, rc = 0); if (fid_is_igif(fid)) sf->sf_items_igif++; if (val == SCRUB_NEXT_OSTOBJ_OLD) { inode = osd_iget(info, dev, lid); if (IS_ERR(inode)) { rc = PTR_ERR(inode); /* Someone removed the inode. */ if (rc == -ENOENT || rc == -ESTALE) rc = 0; GOTO(out, rc); } /* The inode has been reused as EA inode, ignore it. */ if (unlikely(osd_is_ea_inode(inode))) GOTO(out, rc = 0); sf->sf_flags |= SF_UPGRADE; sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID; dev->od_check_ff = 1; rc = osd_scrub_convert_ff(info, dev, inode, fid); if (rc != 0) GOTO(out, rc); converted = true; } if ((val == SCRUB_NEXT_NOLMA) && (!scrub->os_convert_igif || OBD_FAIL_CHECK(OBD_FAIL_FID_NOLMA))) GOTO(out, rc = 0); if ((oii != NULL && oii->oii_insert) || (val == SCRUB_NEXT_NOLMA)) { ops = DTO_INDEX_INSERT; goto iget; } rc = osd_oi_lookup(info, dev, fid, lid2, (val == SCRUB_NEXT_OSTOBJ || val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0); if (rc != 0) { if (rc == -ENOENT) ops = DTO_INDEX_INSERT; else if (rc != -ESTALE) GOTO(out, rc); iget: if (inode == NULL) { inode = osd_iget(info, dev, lid); if (IS_ERR(inode)) { rc = PTR_ERR(inode); /* Someone removed the inode. */ if (rc == -ENOENT || rc == -ESTALE) rc = 0; GOTO(out, rc); } /* The inode has been reused as EA inode, ignore it. */ if (unlikely(osd_is_ea_inode(inode))) GOTO(out, rc = 0); } if (!scrub->os_partial_scan) scrub->os_full_speed = 1; switch (val) { case SCRUB_NEXT_NOLMA: sf->sf_flags |= SF_UPGRADE; if (!(sf->sf_param & SP_DRYRUN)) { rc = osd_ea_fid_set(info, inode, fid, 0, 0); if (rc != 0) GOTO(out, rc); } if (!(sf->sf_flags & SF_INCONSISTENT)) dev->od_igif_inoi = 0; break; case SCRUB_NEXT_OSTOBJ: sf->sf_flags |= SF_INCONSISTENT; case SCRUB_NEXT_OSTOBJ_OLD: break; default: break; } } else if (osd_id_eq(lid, lid2)) { if (converted) sf->sf_items_updated++; GOTO(out, rc = 0); } else { if (!scrub->os_partial_scan) scrub->os_full_speed = 1; sf->sf_flags |= SF_INCONSISTENT; /* XXX: If the device is restored from file-level backup, then * some IGIFs may have been already in OI files, and some * may be not yet. Means upgrading from 1.8 may be partly * processed, but some clients may hold some immobilized * IGIFs, and use them to access related objects. Under * such case, OSD does not know whether an given IGIF has * been processed or to be processed, and it also cannot * generate local ino#/gen# directly from the immobilized * IGIF because of the backup/restore. Then force OSD to * lookup the given IGIF in OI files, and if no entry, * then ask the client to retry after upgrading completed. * No better choice. */ dev->od_igif_inoi = 1; } rc = osd_scrub_refresh_mapping(info, dev, fid, lid, ops, false, (val == SCRUB_NEXT_OSTOBJ || val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0, &exist); if (rc == 0) { if (scrub->os_in_prior) sf->sf_items_updated_prior++; else sf->sf_items_updated++; if (ops == DTO_INDEX_INSERT && val == 0 && !exist) { int idx = osd_oi_fid2idx(dev, fid); sf->sf_flags |= SF_RECREATED; if (unlikely(!ldiskfs_test_bit(idx, sf->sf_oi_bitmap))) ldiskfs_set_bit(idx, sf->sf_oi_bitmap); } } GOTO(out, rc); out: if (rc < 0) { sf->sf_items_failed++; if (sf->sf_pos_first_inconsistent == 0 || sf->sf_pos_first_inconsistent > lid->oii_ino) sf->sf_pos_first_inconsistent = lid->oii_ino; } else { rc = 0; } /* There may be conflict unlink during the OI scrub, * if happend, then remove the new added OI mapping. */ if (ops == DTO_INDEX_INSERT && inode != NULL && !IS_ERR(inode) && unlikely(ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY))) osd_scrub_refresh_mapping(info, dev, fid, lid, DTO_INDEX_DELETE, false, (val == SCRUB_NEXT_OSTOBJ || val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0, NULL); up_write(&scrub->os_rwsem); if (inode != NULL && !IS_ERR(inode)) iput(inode); if (oii != NULL) { spin_lock(&scrub->os_lock); if (likely(!list_empty(&oii->oii_list))) list_del(&oii->oii_list); spin_unlock(&scrub->os_lock); OBD_FREE_PTR(oii); } RETURN(sf->sf_param & SP_FAILOUT ? rc : 0); } /* OI scrub APIs */ static int osd_scrub_prep(struct osd_device *dev) { struct osd_scrub *scrub = &dev->od_scrub; struct ptlrpc_thread *thread = &scrub->os_thread; struct scrub_file *sf = &scrub->os_file; __u32 flags = scrub->os_start_flags; int rc; bool drop_dryrun = false; ENTRY; CDEBUG(D_LFSCK, "%.16s: OI scrub prep, flags = 0x%x\n", osd_scrub2name(scrub), flags); down_write(&scrub->os_rwsem); if (flags & SS_SET_FAILOUT) sf->sf_param |= SP_FAILOUT; else if (flags & SS_CLEAR_FAILOUT) sf->sf_param &= ~SP_FAILOUT; if (flags & SS_SET_DRYRUN) { sf->sf_param |= SP_DRYRUN; } else if (flags & SS_CLEAR_DRYRUN && sf->sf_param & SP_DRYRUN) { sf->sf_param &= ~SP_DRYRUN; drop_dryrun = true; } if (flags & SS_RESET) osd_scrub_file_reset(scrub, LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, 0); if (flags & SS_AUTO_FULL) { scrub->os_full_speed = 1; scrub->os_partial_scan = 0; sf->sf_flags |= SF_AUTO; } else if (flags & SS_AUTO_PARTIAL) { scrub->os_full_speed = 0; scrub->os_partial_scan = 1; sf->sf_flags |= SF_AUTO; } else if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE)) { scrub->os_full_speed = 1; scrub->os_partial_scan = 0; } else { scrub->os_full_speed = 0; scrub->os_partial_scan = 0; } spin_lock(&scrub->os_lock); scrub->os_in_prior = 0; scrub->os_waiting = 0; scrub->os_paused = 0; scrub->os_in_join = 0; scrub->os_full_scrub = 0; spin_unlock(&scrub->os_lock); scrub->os_new_checked = 0; if (drop_dryrun && sf->sf_pos_first_inconsistent != 0) sf->sf_pos_latest_start = sf->sf_pos_first_inconsistent; else if (sf->sf_pos_last_checkpoint != 0) sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1; else sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1; scrub->os_pos_current = sf->sf_pos_latest_start; sf->sf_status = SS_SCANNING; sf->sf_time_latest_start = cfs_time_current_sec(); sf->sf_time_last_checkpoint = sf->sf_time_latest_start; sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1; rc = osd_scrub_file_store(scrub); if (rc == 0) { spin_lock(&scrub->os_lock); thread_set_flags(thread, SVC_RUNNING); spin_unlock(&scrub->os_lock); wake_up_all(&thread->t_ctl_waitq); } up_write(&scrub->os_rwsem); RETURN(rc); } static int osd_scrub_checkpoint(struct osd_scrub *scrub) { struct scrub_file *sf = &scrub->os_file; int rc; if (likely(cfs_time_before(cfs_time_current(), scrub->os_time_next_checkpoint) || scrub->os_new_checked == 0)) return 0; down_write(&scrub->os_rwsem); sf->sf_items_checked += scrub->os_new_checked; scrub->os_new_checked = 0; sf->sf_pos_last_checkpoint = scrub->os_pos_current; sf->sf_time_last_checkpoint = cfs_time_current_sec(); sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC - scrub->os_time_last_checkpoint); rc = osd_scrub_file_store(scrub); up_write(&scrub->os_rwsem); return rc; } static int osd_scrub_post(struct osd_scrub *scrub, int result) { struct scrub_file *sf = &scrub->os_file; int rc; ENTRY; CDEBUG(D_LFSCK, "%.16s: OI scrub post, result = %d\n", osd_scrub2name(scrub), result); down_write(&scrub->os_rwsem); spin_lock(&scrub->os_lock); thread_set_flags(&scrub->os_thread, SVC_STOPPING); spin_unlock(&scrub->os_lock); if (scrub->os_new_checked > 0) { sf->sf_items_checked += scrub->os_new_checked; scrub->os_new_checked = 0; sf->sf_pos_last_checkpoint = scrub->os_pos_current; } sf->sf_time_last_checkpoint = cfs_time_current_sec(); if (result > 0) { struct osd_device *dev = container_of0(scrub, struct osd_device, od_scrub); dev->od_igif_inoi = 1; dev->od_check_ff = 0; sf->sf_status = SS_COMPLETED; if (!(sf->sf_param & SP_DRYRUN)) { memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE); sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE | SF_AUTO); } sf->sf_time_last_complete = sf->sf_time_last_checkpoint; sf->sf_success_count++; } else if (result == 0) { if (scrub->os_paused) sf->sf_status = SS_PAUSED; else sf->sf_status = SS_STOPPED; } else { sf->sf_status = SS_FAILED; } sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC - scrub->os_time_last_checkpoint); rc = osd_scrub_file_store(scrub); up_write(&scrub->os_rwsem); RETURN(rc < 0 ? rc : result); } /* iteration engine */ struct osd_iit_param { struct super_block *sb; struct buffer_head *bitmap; ldiskfs_group_t bg; __u32 gbase; __u32 offset; }; typedef int (*osd_iit_next_policy)(struct osd_thread_info *info, struct osd_device *dev, struct osd_iit_param *param, struct osd_idmap_cache **oic, const bool noslot); typedef int (*osd_iit_exec_policy)(struct osd_thread_info *info, struct osd_device *dev, struct osd_iit_param *param, struct osd_idmap_cache *oic, bool *noslot, int rc); static int osd_iit_next(struct osd_iit_param *param, __u32 *pos) { param->offset = ldiskfs_find_next_bit(param->bitmap->b_data, LDISKFS_INODES_PER_GROUP(param->sb), param->offset); if (param->offset >= LDISKFS_INODES_PER_GROUP(param->sb)) { *pos = 1 + (param->bg+1) * LDISKFS_INODES_PER_GROUP(param->sb); return SCRUB_NEXT_BREAK; } else { *pos = param->gbase + param->offset; return 0; } } /** * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST * \retval 0: FID-on-MDT */ static int osd_scrub_check_local_fldb(struct osd_thread_info *info, struct osd_device *dev, struct lu_fid *fid) { /* XXX: The initial OI scrub will scan the top level /O to generate * a small local FLDB according to the . If the given FID * is in the local FLDB, then it is FID-on-OST; otherwise it's * quite possible for FID-on-MDT. */ if (dev->od_is_ost) return SCRUB_NEXT_OSTOBJ_OLD; else return 0; } static int osd_scrub_get_fid(struct osd_thread_info *info, struct osd_device *dev, struct inode *inode, struct lu_fid *fid, bool scrub) { struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs; int rc; bool has_lma = false; rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma); if (rc == 0) { has_lma = true; if (lma->lma_compat & LMAC_NOT_IN_OI || lma->lma_incompat & LMAI_AGENT) return SCRUB_NEXT_CONTINUE; *fid = lma->lma_self_fid; if (!scrub) return 0; if (lma->lma_compat & LMAC_FID_ON_OST) return SCRUB_NEXT_OSTOBJ; if (fid_is_idif(fid)) return SCRUB_NEXT_OSTOBJ_OLD; /* For local object. */ if (fid_is_internal(fid)) return 0; /* For external visible MDT-object with non-normal FID. */ if (fid_is_namespace_visible(fid) && !fid_is_norm(fid)) return 0; /* For the object with normal FID, it may be MDT-object, * or may be 2.4 OST-object, need further distinguish. * Fall through to next section. */ } if (rc == -ENODATA || rc == 0) { rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid); if (rc == 0) { if (scrub) /* It is old 2.x (x <= 3) or 1.8 OST-object. */ rc = SCRUB_NEXT_OSTOBJ_OLD; return rc; } if (rc > 0) { if (!has_lma) /* It is FID-on-OST, but we do not know how * to generate its FID, ignore it directly. */ rc = SCRUB_NEXT_CONTINUE; else /* It is 2.4 OST-object. */ rc = SCRUB_NEXT_OSTOBJ_OLD; return rc; } if (rc != -ENODATA) return rc; if (!has_lma) { if (dev->od_scrub.os_convert_igif) { lu_igif_build(fid, inode->i_ino, inode->i_generation); if (scrub) rc = SCRUB_NEXT_NOLMA; else rc = 0; } else { /* It may be FID-on-OST, or may be FID for * non-MDT0, anyway, we do not know how to * generate its FID, ignore it directly. */ rc = SCRUB_NEXT_CONTINUE; } return rc; } /* For OI scrub case only: the object has LMA but has no ff * (or ff crashed). It may be MDT-object, may be OST-object * with crashed ff. The last check is local FLDB. */ rc = osd_scrub_check_local_fldb(info, dev, fid); } return rc; } static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev, struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos, struct super_block *sb, bool scrub) { struct inode *inode; int rc; ENTRY; /* Not handle the backend root object and agent parent object. * They are neither visible to namespace nor have OI mappings. */ if (unlikely(pos == osd_sb(dev)->s_root->d_inode->i_ino || pos == osd_remote_parent_ino(dev))) RETURN(SCRUB_NEXT_CONTINUE); osd_id_gen(lid, pos, OSD_OII_NOGEN); inode = osd_iget(info, dev, lid); if (IS_ERR(inode)) { rc = PTR_ERR(inode); /* The inode may be removed after bitmap searching, or the * file is new created without inode initialized yet. */ if (rc == -ENOENT || rc == -ESTALE) RETURN(SCRUB_NEXT_CONTINUE); CDEBUG(D_LFSCK, "%.16s: fail to read inode, ino# = %u: " "rc = %d\n", LDISKFS_SB(sb)->s_es->s_volume_name, pos, rc); RETURN(rc); } /* It is an EA inode, no OI mapping for it, skip it. */ if (osd_is_ea_inode(inode)) GOTO(put, rc = SCRUB_NEXT_CONTINUE); if (scrub && ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) { /* Only skip it for the first OI scrub accessing. */ ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB); GOTO(put, rc = SCRUB_NEXT_NOSCRUB); } rc = osd_scrub_get_fid(info, dev, inode, fid, scrub); GOTO(put, rc); put: iput(inode); return rc; } static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev, struct osd_iit_param *param, struct osd_idmap_cache **oic, const bool noslot) { struct osd_scrub *scrub = &dev->od_scrub; struct ptlrpc_thread *thread = &scrub->os_thread; struct lu_fid *fid; struct osd_inode_id *lid; int rc; if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) { struct l_wait_info lwi; lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL); if (likely(lwi.lwi_timeout > 0)) l_wait_event(thread->t_ctl_waitq, !list_empty(&scrub->os_inconsistent_items) || !thread_is_running(thread), &lwi); } if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) { spin_lock(&scrub->os_lock); thread_set_flags(thread, SVC_STOPPING); spin_unlock(&scrub->os_lock); return SCRUB_NEXT_CRASH; } if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_FATAL)) return SCRUB_NEXT_FATAL; if (unlikely(!thread_is_running(thread))) return SCRUB_NEXT_EXIT; if (!list_empty(&scrub->os_inconsistent_items)) { spin_lock(&scrub->os_lock); if (likely(!list_empty(&scrub->os_inconsistent_items))) { struct osd_inconsistent_item *oii; oii = list_entry(scrub->os_inconsistent_items.next, struct osd_inconsistent_item, oii_list); spin_unlock(&scrub->os_lock); *oic = &oii->oii_cache; scrub->os_in_prior = 1; return 0; } spin_unlock(&scrub->os_lock); } if (noslot) return SCRUB_NEXT_WAIT; rc = osd_iit_next(param, &scrub->os_pos_current); if (rc != 0) return rc; *oic = &scrub->os_oic; fid = &(*oic)->oic_fid; lid = &(*oic)->oic_lid; rc = osd_iit_iget(info, dev, fid, lid, scrub->os_pos_current, param->sb, true); return rc; } static int osd_preload_next(struct osd_thread_info *info, struct osd_device *dev, struct osd_iit_param *param, struct osd_idmap_cache **oic, const bool noslot) { struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache; struct osd_scrub *scrub; struct ptlrpc_thread *thread; int rc; rc = osd_iit_next(param, &ooc->ooc_pos_preload); if (rc != 0) return rc; scrub = &dev->od_scrub; thread = &scrub->os_thread; if (thread_is_running(thread) && ooc->ooc_pos_preload >= scrub->os_pos_current) return SCRUB_NEXT_EXIT; rc = osd_iit_iget(info, dev, &ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid, &ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid, ooc->ooc_pos_preload, param->sb, false); /* If succeed, it needs to move forward; otherwise up layer LFSCK may * ignore the failure, so it still need to skip the inode next time. */ ooc->ooc_pos_preload = param->gbase + ++(param->offset); return rc; } static inline int osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it) { spin_lock(&scrub->os_lock); if (osd_scrub_has_window(scrub, &it->ooi_cache) || !list_empty(&scrub->os_inconsistent_items) || it->ooi_waiting || !thread_is_running(&scrub->os_thread)) scrub->os_waiting = 0; else scrub->os_waiting = 1; spin_unlock(&scrub->os_lock); return !scrub->os_waiting; } static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev, struct osd_iit_param *param, struct osd_idmap_cache *oic, bool *noslot, int rc) { struct l_wait_info lwi = { 0 }; struct osd_scrub *scrub = &dev->od_scrub; struct scrub_file *sf = &scrub->os_file; struct ptlrpc_thread *thread = &scrub->os_thread; struct osd_otable_it *it = dev->od_otable_it; struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL; switch (rc) { case SCRUB_NEXT_CONTINUE: goto next; case SCRUB_NEXT_WAIT: goto wait; case SCRUB_NEXT_NOSCRUB: down_write(&scrub->os_rwsem); scrub->os_new_checked++; sf->sf_items_noscrub++; up_write(&scrub->os_rwsem); goto next; } rc = osd_scrub_check_update(info, dev, oic, rc); if (rc != 0) { scrub->os_in_prior = 0; return rc; } rc = osd_scrub_checkpoint(scrub); if (rc != 0) { CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: " "rc = %d\n", osd_scrub2name(scrub), scrub->os_pos_current, rc); /* Continue, as long as the scrub itself can go ahead. */ } if (scrub->os_in_prior) { scrub->os_in_prior = 0; return 0; } next: scrub->os_pos_current = param->gbase + ++(param->offset); wait: if (it != NULL && it->ooi_waiting && ooc != NULL && ooc->ooc_pos_preload < scrub->os_pos_current) { spin_lock(&scrub->os_lock); it->ooi_waiting = 0; wake_up_all(&thread->t_ctl_waitq); spin_unlock(&scrub->os_lock); } if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE) return 0; if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) { *noslot = false; return 0; } if (it != NULL) l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it), &lwi); if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) *noslot = false; else *noslot = true; return 0; } static int osd_preload_exec(struct osd_thread_info *info, struct osd_device *dev, struct osd_iit_param *param, struct osd_idmap_cache *oic, bool *noslot, int rc) { struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache; if (rc == 0) { ooc->ooc_cached_items++; ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) & ~OSD_OTABLE_IT_CACHE_MASK; } return rc > 0 ? 0 : rc; } #define SCRUB_IT_ALL 1 #define SCRUB_IT_CRASH 2 static void osd_scrub_join(struct osd_device *dev, __u32 flags, bool inconsistent) { struct osd_scrub *scrub = &dev->od_scrub; struct ptlrpc_thread *thread = &scrub->os_thread; struct scrub_file *sf = &scrub->os_file; int rc; ENTRY; LASSERT(!(flags & SS_AUTO_PARTIAL)); down_write(&scrub->os_rwsem); scrub->os_in_join = 1; if (flags & SS_SET_FAILOUT) sf->sf_param |= SP_FAILOUT; else if (flags & SS_CLEAR_FAILOUT) sf->sf_param &= ~SP_FAILOUT; if (flags & SS_SET_DRYRUN) sf->sf_param |= SP_DRYRUN; else if (flags & SS_CLEAR_DRYRUN) sf->sf_param &= ~SP_DRYRUN; if (flags & SS_RESET) { osd_scrub_file_reset(scrub, LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, inconsistent ? SF_INCONSISTENT : 0); sf->sf_status = SS_SCANNING; } if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE)) scrub->os_full_speed = 1; else scrub->os_full_speed = 0; if (flags & SS_AUTO_FULL) { sf->sf_flags |= SF_AUTO; scrub->os_full_speed = 1; } scrub->os_new_checked = 0; if (sf->sf_pos_last_checkpoint != 0) sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1; else sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1; scrub->os_pos_current = sf->sf_pos_latest_start; sf->sf_time_latest_start = cfs_time_current_sec(); sf->sf_time_last_checkpoint = sf->sf_time_latest_start; sf->sf_pos_last_checkpoint = sf->sf_pos_latest_start - 1; rc = osd_scrub_file_store(scrub); if (rc != 0) CDEBUG(D_LFSCK, "%.16s: fail to store scrub file when join " "the OI scrub: rc = %d\n", osd_scrub2name(scrub), rc); spin_lock(&scrub->os_lock); scrub->os_waiting = 0; scrub->os_paused = 0; scrub->os_partial_scan = 0; scrub->os_in_join = 0; scrub->os_full_scrub = 0; spin_unlock(&scrub->os_lock); wake_up_all(&thread->t_ctl_waitq); up_write(&scrub->os_rwsem); EXIT; } static int osd_inode_iteration(struct osd_thread_info *info, struct osd_device *dev, __u32 max, bool preload) { struct osd_scrub *scrub = &dev->od_scrub; struct ptlrpc_thread *thread = &scrub->os_thread; struct scrub_file *sf = &scrub->os_file; osd_iit_next_policy next; osd_iit_exec_policy exec; __u32 *pos; __u32 *count; struct osd_iit_param param = { NULL }; struct l_wait_info lwi = { 0 }; __u32 limit; int rc; bool noslot = true; ENTRY; param.sb = osd_sb(dev); if (preload) goto full; while (scrub->os_partial_scan && !scrub->os_in_join) { struct osd_idmap_cache *oic = NULL; rc = osd_scrub_next(info, dev, ¶m, &oic, noslot); switch (rc) { case SCRUB_NEXT_EXIT: RETURN(0); case SCRUB_NEXT_CRASH: RETURN(SCRUB_IT_CRASH); case SCRUB_NEXT_FATAL: RETURN(-EINVAL); case SCRUB_NEXT_WAIT: { struct kstatfs *ksfs = &info->oti_ksfs; __u64 saved_flags; if (dev->od_full_scrub_ratio == OFSR_NEVER || unlikely(sf->sf_items_updated_prior == 0)) goto wait; if (dev->od_full_scrub_ratio == OFSR_DIRECTLY || scrub->os_full_scrub) { osd_scrub_join(dev, SS_AUTO_FULL | SS_RESET, true); goto full; } rc = param.sb->s_op->statfs(param.sb->s_root, ksfs); if (rc == 0) { __u64 used = ksfs->f_files - ksfs->f_ffree; do_div(used, sf->sf_items_updated_prior); /* If we hit too much inconsistent OI * mappings during the partial scan, * then scan the device completely. */ if (used < dev->od_full_scrub_ratio) { osd_scrub_join(dev, SS_AUTO_FULL | SS_RESET, true); goto full; } } wait: if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) continue; saved_flags = sf->sf_flags; sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE | SF_AUTO); sf->sf_status = SS_COMPLETED; l_wait_event(thread->t_ctl_waitq, !thread_is_running(thread) || !scrub->os_partial_scan || scrub->os_in_join || !list_empty(&scrub->os_inconsistent_items), &lwi); sf->sf_flags = saved_flags; sf->sf_status = SS_SCANNING; if (unlikely(!thread_is_running(thread))) RETURN(0); if (!scrub->os_partial_scan || scrub->os_in_join) goto full; continue; } default: LASSERTF(rc == 0, "rc = %d\n", rc); osd_scrub_exec(info, dev, ¶m, oic, &noslot, rc); break; } } full: if (!preload) { l_wait_event(thread->t_ctl_waitq, !thread_is_running(thread) || !scrub->os_in_join, &lwi); if (unlikely(!thread_is_running(thread))) RETURN(0); } noslot = false; if (!preload) { next = osd_scrub_next; exec = osd_scrub_exec; pos = &scrub->os_pos_current; count = &scrub->os_new_checked; } else { struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache; next = osd_preload_next; exec = osd_preload_exec; pos = &ooc->ooc_pos_preload; count = &ooc->ooc_cached_items; } limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count); while (*pos <= limit && *count < max) { struct osd_idmap_cache *oic = NULL; struct ldiskfs_group_desc *desc; param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb); desc = ldiskfs_get_group_desc(param.sb, param.bg, NULL); if (desc == NULL) RETURN(-EIO); ldiskfs_lock_group(param.sb, param.bg); if (desc->bg_flags & cpu_to_le16(LDISKFS_BG_INODE_UNINIT)) { ldiskfs_unlock_group(param.sb, param.bg); *pos = 1 + (param.bg + 1) * LDISKFS_INODES_PER_GROUP(param.sb); continue; } ldiskfs_unlock_group(param.sb, param.bg); param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb); param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb); param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg); if (param.bitmap == NULL) { CDEBUG(D_LFSCK, "%.16s: fail to read bitmap for %u, " "scrub will stop, urgent mode\n", osd_scrub2name(scrub), (__u32)param.bg); RETURN(-EIO); } while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) && *count < max) { if (param.offset + ldiskfs_itable_unused_count(param.sb, desc) > LDISKFS_INODES_PER_GROUP(param.sb)) { *pos = 1 + (param.bg + 1) * LDISKFS_INODES_PER_GROUP(param.sb); goto next_group; } rc = next(info, dev, ¶m, &oic, noslot); switch (rc) { case SCRUB_NEXT_BREAK: goto next_group; case SCRUB_NEXT_EXIT: brelse(param.bitmap); RETURN(0); case SCRUB_NEXT_CRASH: brelse(param.bitmap); RETURN(SCRUB_IT_CRASH); case SCRUB_NEXT_FATAL: brelse(param.bitmap); RETURN(-EINVAL); } rc = exec(info, dev, ¶m, oic, &noslot, rc); if (rc != 0) { brelse(param.bitmap); RETURN(rc); } } next_group: brelse(param.bitmap); } if (*pos > limit) RETURN(SCRUB_IT_ALL); RETURN(0); } static int osd_otable_it_preload(const struct lu_env *env, struct osd_otable_it *it) { struct osd_device *dev = it->ooi_dev; struct osd_scrub *scrub = &dev->od_scrub; struct osd_otable_cache *ooc = &it->ooi_cache; int rc; ENTRY; rc = osd_inode_iteration(osd_oti_get(env), dev, OSD_OTABLE_IT_CACHE_SIZE, true); if (rc == SCRUB_IT_ALL) it->ooi_all_cached = 1; if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) { spin_lock(&scrub->os_lock); scrub->os_waiting = 0; wake_up_all(&scrub->os_thread.t_ctl_waitq); spin_unlock(&scrub->os_lock); } RETURN(rc < 0 ? rc : ooc->ooc_cached_items); } static int osd_scrub_main(void *args) { struct lu_env env; struct osd_device *dev = (struct osd_device *)args; struct osd_scrub *scrub = &dev->od_scrub; struct ptlrpc_thread *thread = &scrub->os_thread; int rc; ENTRY; rc = lu_env_init(&env, LCT_LOCAL); if (rc != 0) { CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n", osd_scrub2name(scrub), rc); GOTO(noenv, rc); } rc = osd_scrub_prep(dev); if (rc != 0) { CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n", osd_scrub2name(scrub), rc); GOTO(out, rc); } if (!scrub->os_full_speed && !scrub->os_partial_scan) { struct l_wait_info lwi = { 0 }; struct osd_otable_it *it = dev->od_otable_it; struct osd_otable_cache *ooc = &it->ooi_cache; l_wait_event(thread->t_ctl_waitq, it->ooi_user_ready || !thread_is_running(thread), &lwi); if (unlikely(!thread_is_running(thread))) GOTO(post, rc = 0); scrub->os_pos_current = ooc->ooc_pos_preload; } CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n", osd_scrub2name(scrub), scrub->os_start_flags, scrub->os_pos_current); rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false); if (unlikely(rc == SCRUB_IT_CRASH)) GOTO(out, rc = -EINVAL); GOTO(post, rc); post: rc = osd_scrub_post(scrub, rc); CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n", osd_scrub2name(scrub), scrub->os_pos_current, rc); out: while (!list_empty(&scrub->os_inconsistent_items)) { struct osd_inconsistent_item *oii; oii = list_entry(scrub->os_inconsistent_items.next, struct osd_inconsistent_item, oii_list); list_del_init(&oii->oii_list); OBD_FREE_PTR(oii); } lu_env_fini(&env); noenv: spin_lock(&scrub->os_lock); thread_set_flags(thread, SVC_STOPPED); wake_up_all(&thread->t_ctl_waitq); spin_unlock(&scrub->os_lock); return rc; } /* initial OI scrub */ typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *, struct dentry *, filldir_t filldir); #ifdef HAVE_FILLDIR_USE_CTX static int osd_ios_varfid_fill(struct dir_context *buf, const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type); static int osd_ios_lf_fill(struct dir_context *buf, const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type); static int osd_ios_dl_fill(struct dir_context *buf, const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type); static int osd_ios_uld_fill(struct dir_context *buf, const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type); #else static int osd_ios_varfid_fill(void *buf, const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type); static int osd_ios_lf_fill(void *buf, const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type); static int osd_ios_dl_fill(void *buf, const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type); static int osd_ios_uld_fill(void *buf, const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type); #endif static int osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev, struct dentry *dentry, filldir_t filldir); static int osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev, struct dentry *dentry, filldir_t filldir); static int osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev, struct dentry *dentry, filldir_t filldir); enum osd_lf_flags { OLF_SCAN_SUBITEMS = 0x0001, OLF_HIDE_FID = 0x0002, OLF_SHOW_NAME = 0x0004, OLF_NO_OI = 0x0008, OLF_IDX_IN_FID = 0x0010, }; struct osd_lf_map { char *olm_name; struct lu_fid olm_fid; __u16 olm_flags; __u16 olm_namelen; scandir_t olm_scandir; filldir_t olm_filldir; }; /* Add the new introduced local files in the list in the future. */ static const struct osd_lf_map osd_lf_maps[] = { /* CATALOGS */ { .olm_name = CATLIST, .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = LLOG_CATALOGS_OID, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof(CATLIST) - 1, }, /* CONFIGS */ { .olm_name = MOUNT_CONFIGS_DIR, .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = MGS_CONFIGS_OID, }, .olm_flags = OLF_SCAN_SUBITEMS, .olm_namelen = sizeof(MOUNT_CONFIGS_DIR) - 1, .olm_scandir = osd_ios_general_scan, .olm_filldir = osd_ios_varfid_fill, }, /* NIDTBL_VERSIONS */ { .olm_name = MGS_NIDTBL_DIR, .olm_flags = OLF_SCAN_SUBITEMS, .olm_namelen = sizeof(MGS_NIDTBL_DIR) - 1, .olm_scandir = osd_ios_general_scan, .olm_filldir = osd_ios_varfid_fill, }, /* PENDING */ { .olm_name = "PENDING", .olm_namelen = sizeof("PENDING") - 1, }, /* ROOT */ { .olm_name = "ROOT", .olm_fid = { .f_seq = FID_SEQ_ROOT, .f_oid = FID_OID_ROOT, }, .olm_flags = OLF_SCAN_SUBITEMS | OLF_HIDE_FID, .olm_namelen = sizeof("ROOT") - 1, .olm_scandir = osd_ios_ROOT_scan, }, /* changelog_catalog */ { .olm_name = CHANGELOG_CATALOG, .olm_namelen = sizeof(CHANGELOG_CATALOG) - 1, }, /* changelog_users */ { .olm_name = CHANGELOG_USERS, .olm_namelen = sizeof(CHANGELOG_USERS) - 1, }, /* fld */ { .olm_name = "fld", .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = FLD_INDEX_OID, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof("fld") - 1, }, /* last_rcvd */ { .olm_name = LAST_RCVD, .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = LAST_RECV_OID, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof(LAST_RCVD) - 1, }, /* reply_data */ { .olm_name = REPLY_DATA, .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = REPLY_DATA_OID, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof(REPLY_DATA) - 1, }, /* lov_objid */ { .olm_name = LOV_OBJID, .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = MDD_LOV_OBJ_OID, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof(LOV_OBJID) - 1, }, /* lov_objseq */ { .olm_name = LOV_OBJSEQ, .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = MDD_LOV_OBJ_OSEQ, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof(LOV_OBJSEQ) - 1, }, /* quota_master */ { .olm_name = QMT_DIR, .olm_flags = OLF_SCAN_SUBITEMS, .olm_namelen = sizeof(QMT_DIR) - 1, .olm_scandir = osd_ios_general_scan, .olm_filldir = osd_ios_varfid_fill, }, /* quota_slave */ { .olm_name = QSD_DIR, .olm_flags = OLF_SCAN_SUBITEMS, .olm_namelen = sizeof(QSD_DIR) - 1, .olm_scandir = osd_ios_general_scan, .olm_filldir = osd_ios_varfid_fill, }, /* seq_ctl */ { .olm_name = "seq_ctl", .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = FID_SEQ_CTL_OID, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof("seq_ctl") - 1, }, /* seq_srv */ { .olm_name = "seq_srv", .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = FID_SEQ_SRV_OID, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof("seq_srv") - 1, }, /* health_check */ { .olm_name = HEALTH_CHECK, .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = OFD_HEALTH_CHECK_OID, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof(HEALTH_CHECK) - 1, }, /* LFSCK */ { .olm_name = LFSCK_DIR, .olm_namelen = sizeof(LFSCK_DIR) - 1, .olm_scandir = osd_ios_general_scan, .olm_filldir = osd_ios_varfid_fill, }, /* lfsck_bookmark */ { .olm_name = LFSCK_BOOKMARK, .olm_namelen = sizeof(LFSCK_BOOKMARK) - 1, }, /* lfsck_layout */ { .olm_name = LFSCK_LAYOUT, .olm_namelen = sizeof(LFSCK_LAYOUT) - 1, }, /* lfsck_namespace */ { .olm_name = LFSCK_NAMESPACE, .olm_namelen = sizeof(LFSCK_NAMESPACE) - 1, }, /* OBJECTS, upgrade from old device */ { .olm_name = OBJECTS, .olm_flags = OLF_SCAN_SUBITEMS, .olm_namelen = sizeof(OBJECTS) - 1, .olm_scandir = osd_ios_OBJECTS_scan, }, /* lquota_v2.user, upgrade from old device */ { .olm_name = "lquota_v2.user", .olm_namelen = sizeof("lquota_v2.user") - 1, }, /* lquota_v2.group, upgrade from old device */ { .olm_name = "lquota_v2.group", .olm_namelen = sizeof("lquota_v2.group") - 1, }, /* LAST_GROUP, upgrade from old device */ { .olm_name = "LAST_GROUP", .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = OFD_LAST_GROUP_OID, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof("LAST_GROUP") - 1, }, /* committed batchid for cross-MDT operation */ { .olm_name = "BATCHID", .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = BATCHID_COMMITTED_OID, }, .olm_flags = OLF_SHOW_NAME, .olm_namelen = sizeof("BATCHID") - 1, }, /* OSP update logs update_log{_dir} use f_seq = FID_SEQ_UPDATE_LOG{_DIR} * and f_oid = index for their log files. See lu_update_log{_dir}_fid() * for more details. */ /* update_log */ { .olm_name = "update_log", .olm_fid = { .f_seq = FID_SEQ_UPDATE_LOG, }, .olm_flags = OLF_SHOW_NAME | OLF_IDX_IN_FID, .olm_namelen = sizeof("update_log") - 1, }, /* update_log_dir */ { .olm_name = "update_log_dir", .olm_fid = { .f_seq = FID_SEQ_UPDATE_LOG_DIR, }, .olm_flags = OLF_SHOW_NAME | OLF_SCAN_SUBITEMS | OLF_IDX_IN_FID, .olm_namelen = sizeof("update_log_dir") - 1, .olm_scandir = osd_ios_general_scan, .olm_filldir = osd_ios_uld_fill, }, /* lost+found */ { .olm_name = "lost+found", .olm_fid = { .f_seq = FID_SEQ_LOCAL_FILE, .f_oid = OSD_LPF_OID, }, .olm_flags = OLF_SCAN_SUBITEMS, .olm_namelen = sizeof("lost+found") - 1, .olm_scandir = osd_ios_general_scan, .olm_filldir = osd_ios_lf_fill, }, { .olm_name = NULL } }; /* Add the new introduced files under .lustre/ in the list in the future. */ static const struct osd_lf_map osd_dl_maps[] = { /* .lustre/fid */ { .olm_name = "fid", .olm_fid = { .f_seq = FID_SEQ_DOT_LUSTRE, .f_oid = FID_OID_DOT_LUSTRE_OBF, }, .olm_namelen = sizeof("fid") - 1, }, /* .lustre/lost+found */ { .olm_name = "lost+found", .olm_fid = { .f_seq = FID_SEQ_DOT_LUSTRE, .f_oid = FID_OID_DOT_LUSTRE_LPF, }, .olm_namelen = sizeof("lost+found") - 1, }, { .olm_name = NULL } }; struct osd_ios_item { struct list_head oii_list; struct dentry *oii_dentry; scandir_t oii_scandir; filldir_t oii_filldir; }; struct osd_ios_filldir_buf { #ifdef HAVE_DIR_CONTEXT /* please keep it as first member */ struct dir_context ctx; #endif struct osd_thread_info *oifb_info; struct osd_device *oifb_dev; struct dentry *oifb_dentry; }; static inline struct dentry * osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen) { struct dentry *dentry; dentry = ll_lookup_one_len(name, parent, namelen); if (IS_ERR(dentry)) { int rc = PTR_ERR(dentry); if (rc != -ENOENT) CERROR("Fail to find %.*s in %.*s (%lu/%u): rc = %d\n", namelen, name, parent->d_name.len, parent->d_name.name, parent->d_inode->i_ino, parent->d_inode->i_generation, rc); return dentry; } if (dentry->d_inode == NULL) { dput(dentry); return ERR_PTR(-ENOENT); } return dentry; } static int osd_ios_new_item(struct osd_device *dev, struct dentry *dentry, scandir_t scandir, filldir_t filldir) { struct osd_ios_item *item; ENTRY; OBD_ALLOC_PTR(item); if (item == NULL) RETURN(-ENOMEM); INIT_LIST_HEAD(&item->oii_list); item->oii_dentry = dget(dentry); item->oii_scandir = scandir; item->oii_filldir = filldir; list_add_tail(&item->oii_list, &dev->od_ios_list); RETURN(0); } /** * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode * * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to * reference the inode, or fixed if it is missing or references another inode. */ static int osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev, struct inode *inode, const struct lu_fid *fid, int flags) { struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs; struct osd_inode_id *id = &info->oti_id; struct osd_inode_id *id2 = &info->oti_id2; struct osd_scrub *scrub = &dev->od_scrub; struct scrub_file *sf = &scrub->os_file; struct lu_fid tfid; int rc; ENTRY; rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma); if (rc != 0 && rc != -ENODATA) { CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: " "rc = %d\n", osd_name(dev), rc); RETURN(rc); } osd_id_gen(id, inode->i_ino, inode->i_generation); if (rc == -ENODATA) { if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID) { lu_igif_build(&tfid, inode->i_ino, inode->i_generation); } else { tfid = *fid; if (flags & OLF_IDX_IN_FID) { LASSERT(dev->od_index >= 0); tfid.f_oid = dev->od_index; } } rc = osd_ea_fid_set(info, inode, &tfid, 0, 0); if (rc != 0) { CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI " "scrub: rc = %d\n", osd_name(dev), rc); RETURN(rc); } } else { if (lma->lma_compat & LMAC_NOT_IN_OI) RETURN(0); tfid = lma->lma_self_fid; } rc = osd_oi_lookup(info, dev, &tfid, id2, 0); if (rc != 0) { if (rc != -ENOENT) RETURN(rc); rc = osd_scrub_refresh_mapping(info, dev, &tfid, id, DTO_INDEX_INSERT, true, 0, NULL); if (rc > 0) rc = 0; RETURN(rc); } if (osd_id_eq_strict(id, id2)) RETURN(0); if (!(sf->sf_flags & SF_INCONSISTENT)) { osd_scrub_file_reset(scrub, LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, SF_INCONSISTENT); rc = osd_scrub_file_store(scrub); if (rc != 0) RETURN(rc); } rc = osd_scrub_refresh_mapping(info, dev, &tfid, id, DTO_INDEX_UPDATE, true, 0, NULL); if (rc > 0) rc = 0; RETURN(rc); } /** * It scans the /lost+found, and for the OST-object (with filter_fid * or filter_fid_old), move them back to its proper /O//d. */ #ifdef HAVE_FILLDIR_USE_CTX static int osd_ios_lf_fill(struct dir_context *buf, #else static int osd_ios_lf_fill(void *buf, #endif const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type) { struct osd_ios_filldir_buf *fill_buf = (struct osd_ios_filldir_buf *)buf; struct osd_thread_info *info = fill_buf->oifb_info; struct osd_device *dev = fill_buf->oifb_dev; struct lu_fid *fid = &info->oti_fid; struct osd_scrub *scrub = &dev->od_scrub; struct dentry *parent = fill_buf->oifb_dentry; struct dentry *child; struct inode *dir = parent->d_inode; struct inode *inode; int rc; ENTRY; /* skip any '.' started names */ if (name[0] == '.') RETURN(0); scrub->os_lf_scanned++; child = osd_ios_lookup_one_len(name, parent, namelen); if (IS_ERR(child)) { CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n", osd_name(dev), namelen, name, (int)PTR_ERR(child)); RETURN(0); } inode = child->d_inode; if (S_ISDIR(inode->i_mode)) { rc = osd_ios_new_item(dev, child, osd_ios_general_scan, osd_ios_lf_fill); if (rc != 0) CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': " "rc = %d\n", osd_name(dev), namelen, name, rc); GOTO(put, rc); } if (!S_ISREG(inode->i_mode)) GOTO(put, rc = 0); rc = osd_scrub_get_fid(info, dev, inode, fid, true); if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) { rc = osd_obj_map_recover(info, dev, dir, child, fid); if (rc == 0) { CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from " "/lost+found.\n", namelen, name, PFID(fid)); scrub->os_lf_repaired++; } else { CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' " DFID": rc = %d\n", osd_name(dev), namelen, name, PFID(fid), rc); } } /* XXX: For MDT-objects, we can move them from /lost+found to namespace * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK * can process them in furtuer. */ GOTO(put, rc); put: if (rc < 0) scrub->os_lf_failed++; dput(child); /* skip the failure to make the scanning to continue. */ return 0; } #ifdef HAVE_FILLDIR_USE_CTX static int osd_ios_varfid_fill(struct dir_context *buf, #else static int osd_ios_varfid_fill(void *buf, #endif const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type) { struct osd_ios_filldir_buf *fill_buf = (struct osd_ios_filldir_buf *)buf; struct osd_device *dev = fill_buf->oifb_dev; struct dentry *child; int rc; ENTRY; /* skip any '.' started names */ if (name[0] == '.') RETURN(0); child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen); if (IS_ERR(child)) RETURN(PTR_ERR(child)); rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode, NULL, 0); if (rc == 0 && S_ISDIR(child->d_inode->i_mode)) rc = osd_ios_new_item(dev, child, osd_ios_general_scan, osd_ios_varfid_fill); dput(child); RETURN(rc); } #ifdef HAVE_FILLDIR_USE_CTX static int osd_ios_dl_fill(struct dir_context *buf, #else static int osd_ios_dl_fill(void *buf, #endif const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type) { struct osd_ios_filldir_buf *fill_buf = (struct osd_ios_filldir_buf *)buf; struct osd_device *dev = fill_buf->oifb_dev; const struct osd_lf_map *map; struct dentry *child; int rc = 0; ENTRY; /* skip any '.' started names */ if (name[0] == '.') RETURN(0); for (map = osd_dl_maps; map->olm_name != NULL; map++) { if (map->olm_namelen != namelen) continue; if (strncmp(map->olm_name, name, namelen) == 0) break; } if (map->olm_name == NULL) RETURN(0); child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen); if (IS_ERR(child)) RETURN(PTR_ERR(child)); rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode, &map->olm_fid, map->olm_flags); dput(child); RETURN(rc); } #ifdef HAVE_FILLDIR_USE_CTX static int osd_ios_uld_fill(struct dir_context *buf, #else static int osd_ios_uld_fill(void *buf, #endif const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type) { struct osd_ios_filldir_buf *fill_buf = (struct osd_ios_filldir_buf *)buf; struct dentry *child; struct lu_fid tfid; int rc = 0; ENTRY; /* skip any non-DFID format name */ if (name[0] != '[') RETURN(0); child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen); if (IS_ERR(child)) RETURN(PTR_ERR(child)); /* skip the start '[' */ sscanf(&name[1], SFID, RFID(&tfid)); if (fid_is_sane(&tfid)) rc = osd_ios_scan_one(fill_buf->oifb_info, fill_buf->oifb_dev, child->d_inode, &tfid, 0); else rc = -EIO; dput(child); RETURN(rc); } #ifdef HAVE_FILLDIR_USE_CTX static int osd_ios_root_fill(struct dir_context *buf, #else static int osd_ios_root_fill(void *buf, #endif const char *name, int namelen, loff_t offset, __u64 ino, unsigned d_type) { struct osd_ios_filldir_buf *fill_buf = (struct osd_ios_filldir_buf *)buf; struct osd_device *dev = fill_buf->oifb_dev; const struct osd_lf_map *map; struct dentry *child; int rc = 0; ENTRY; /* skip any '.' started names */ if (name[0] == '.') RETURN(0); for (map = osd_lf_maps; map->olm_name != NULL; map++) { if (map->olm_namelen != namelen) continue; if (strncmp(map->olm_name, name, namelen) == 0) break; } if (map->olm_name == NULL) RETURN(0); child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen); if (IS_ERR(child)) RETURN(PTR_ERR(child)); if (!(map->olm_flags & OLF_NO_OI)) rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode, &map->olm_fid, map->olm_flags); if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS) rc = osd_ios_new_item(dev, child, map->olm_scandir, map->olm_filldir); dput(child); RETURN(rc); } static int osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev, struct dentry *dentry, filldir_t filldir) { struct osd_ios_filldir_buf buf = { #ifdef HAVE_DIR_CONTEXT .ctx.actor = filldir, #endif .oifb_info = info, .oifb_dev = dev, .oifb_dentry = dentry }; struct file *filp = &info->oti_file; struct inode *inode = dentry->d_inode; const struct file_operations *fops = inode->i_fop; int rc; ENTRY; LASSERT(filldir != NULL); filp->f_pos = 0; filp->f_path.dentry = dentry; filp->f_mode = FMODE_64BITHASH; filp->f_mapping = inode->i_mapping; filp->f_op = fops; filp->private_data = NULL; set_file_inode(filp, inode); #ifdef HAVE_DIR_CONTEXT buf.ctx.pos = filp->f_pos; rc = fops->iterate(filp, &buf.ctx); filp->f_pos = buf.ctx.pos; #else rc = fops->readdir(filp, &buf, filldir); #endif fops->release(inode, filp); RETURN(rc); } static int osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev, struct dentry *dentry, filldir_t filldir) { struct osd_scrub *scrub = &dev->od_scrub; struct scrub_file *sf = &scrub->os_file; struct dentry *child; int rc; ENTRY; /* It is existing MDT0 device. We only allow the case of object without * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we * can generate IGIF mode FID for the object and related OI mapping. If * it is on other MDTs, then becuase file-level backup/restore, related * OI mapping may be invalid already, we do not know which is the right * FID for the object. We only allow IGIF objects to reside on the MDT0. * * XXX: For the case of object on non-MDT0 device with neither LMA nor * "fid" xattr, then something crashed. We cannot re-generate the * FID directly, instead, the OI scrub will scan the OI structure * and try to re-generate the LMA from the OI mapping. But if the * OI mapping crashed or lost also, then we have to give up under * double failure cases. */ scrub->os_convert_igif = 1; child = osd_ios_lookup_one_len(dot_lustre_name, dentry, strlen(dot_lustre_name)); if (IS_ERR(child)) { rc = PTR_ERR(child); if (rc == -ENOENT) { /* It is 1.8 MDT device. */ if (!(sf->sf_flags & SF_UPGRADE)) { osd_scrub_file_reset(scrub, LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, SF_UPGRADE); sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID; rc = osd_scrub_file_store(scrub); } else { rc = 0; } } } else { /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA, * so the client will get IGIF for the ".lustre" object when * the MDT restart. * * From the OI scrub view, when the MDT upgrade to Lustre-2.4, * it does not know whether there are some old clients cached * the ".lustre" IGIF during the upgrading. Two choices: * * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre". * It will allow the old connected clients to access the * ".lustre" with cached IGIF. But it will cause others * on the MDT failed to check "fid_is_dot_lustre()". * * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0} * for ".lustre" in spite of whether there are some clients * cached the ".lustre" IGIF or not. It enables the check * "fid_is_dot_lustre()" on the MDT, although it will cause * that the old connected clients cannot access the ".lustre" * with the cached IGIF. * * Usually, it is rare case for the old connected clients * to access the ".lustre" with cached IGIF. So we prefer * to the solution 2). */ rc = osd_ios_scan_one(info, dev, child->d_inode, &LU_DOT_LUSTRE_FID, 0); if (rc == 0) rc = osd_ios_new_item(dev, child, osd_ios_general_scan, osd_ios_dl_fill); dput(child); } RETURN(rc); } static int osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev, struct dentry *dentry, filldir_t filldir) { struct osd_scrub *scrub = &dev->od_scrub; struct scrub_file *sf = &scrub->os_file; struct dentry *child; int rc; ENTRY; if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) { sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID; rc = osd_scrub_file_store(scrub); if (rc != 0) RETURN(rc); } child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR)); if (!IS_ERR(child)) { rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0); dput(child); } else { rc = PTR_ERR(child); } if (rc != 0 && rc != -ENOENT) RETURN(rc); child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP)); if (!IS_ERR(child)) { rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0); dput(child); } else { rc = PTR_ERR(child); } if (rc == -ENOENT) rc = 0; RETURN(rc); } static int osd_initial_OI_scrub(struct osd_thread_info *info, struct osd_device *dev) { struct osd_ios_item *item = NULL; scandir_t scandir = osd_ios_general_scan; filldir_t filldir = osd_ios_root_fill; struct dentry *dentry = osd_sb(dev)->s_root; const struct osd_lf_map *map = osd_lf_maps; int rc; ENTRY; /* Lookup IGIF in OI by force for initial OI scrub. */ dev->od_igif_inoi = 1; while (1) { rc = scandir(info, dev, dentry, filldir); if (item != NULL) { dput(item->oii_dentry); OBD_FREE_PTR(item); } if (rc != 0) break; if (list_empty(&dev->od_ios_list)) break; item = list_entry(dev->od_ios_list.next, struct osd_ios_item, oii_list); list_del_init(&item->oii_list); LASSERT(item->oii_scandir != NULL); scandir = item->oii_scandir; filldir = item->oii_filldir; dentry = item->oii_dentry; } while (!list_empty(&dev->od_ios_list)) { item = list_entry(dev->od_ios_list.next, struct osd_ios_item, oii_list); list_del_init(&item->oii_list); dput(item->oii_dentry); OBD_FREE_PTR(item); } if (rc != 0) RETURN(rc); /* There maybe the case that the object has been removed, but its OI * mapping is still in the OI file, such as the "CATALOGS" after MDT * file-level backup/restore. So here cleanup the stale OI mappings. */ while (map->olm_name != NULL) { struct dentry *child; if (fid_is_zero(&map->olm_fid)) { map++; continue; } child = osd_ios_lookup_one_len(map->olm_name, osd_sb(dev)->s_root, map->olm_namelen); if (!IS_ERR(child)) dput(child); else if (PTR_ERR(child) == -ENOENT) osd_scrub_refresh_mapping(info, dev, &map->olm_fid, NULL, DTO_INDEX_DELETE, true, 0, NULL); map++; } RETURN(0); } char *osd_lf_fid2name(const struct lu_fid *fid) { const struct osd_lf_map *map = osd_lf_maps; while (map->olm_name != NULL) { if (!lu_fid_eq(fid, &map->olm_fid)) { map++; continue; } if (map->olm_flags & OLF_SHOW_NAME) return map->olm_name; else return ""; } return NULL; } /* OI scrub start/stop */ static int do_osd_scrub_start(struct osd_device *dev, __u32 flags) { struct osd_scrub *scrub = &dev->od_scrub; struct ptlrpc_thread *thread = &scrub->os_thread; struct l_wait_info lwi = { 0 }; struct task_struct *task; int rc; ENTRY; /* os_lock: sync status between stop and scrub thread */ spin_lock(&scrub->os_lock); again: if (thread_is_running(thread)) { spin_unlock(&scrub->os_lock); if (!(scrub->os_file.sf_flags & SF_AUTO || scrub->os_partial_scan) || (flags & SS_AUTO_PARTIAL)) RETURN(-EALREADY); osd_scrub_join(dev, flags, false); spin_lock(&scrub->os_lock); if (!thread_is_running(thread)) goto again; spin_unlock(&scrub->os_lock); RETURN(0); } if (unlikely(thread_is_stopping(thread))) { spin_unlock(&scrub->os_lock); l_wait_event(thread->t_ctl_waitq, thread_is_stopped(thread), &lwi); spin_lock(&scrub->os_lock); goto again; } spin_unlock(&scrub->os_lock); if (scrub->os_file.sf_status == SS_COMPLETED) { if (!(flags & SS_SET_FAILOUT)) flags |= SS_CLEAR_FAILOUT; if (!(flags & SS_SET_DRYRUN)) flags |= SS_CLEAR_DRYRUN; flags |= SS_RESET; } scrub->os_start_flags = flags; thread_set_flags(thread, 0); task = kthread_run(osd_scrub_main, dev, "OI_scrub"); if (IS_ERR(task)) { rc = PTR_ERR(task); CERROR("%.16s: cannot start iteration thread: rc = %d\n", osd_scrub2name(scrub), rc); RETURN(rc); } l_wait_event(thread->t_ctl_waitq, thread_is_running(thread) || thread_is_stopped(thread), &lwi); RETURN(0); } int osd_scrub_start(struct osd_device *dev, __u32 flags) { int rc; ENTRY; /* od_otable_mutex: prevent curcurrent start/stop */ mutex_lock(&dev->od_otable_mutex); rc = do_osd_scrub_start(dev, flags); mutex_unlock(&dev->od_otable_mutex); RETURN(rc == -EALREADY ? 0 : rc); } static void do_osd_scrub_stop(struct osd_scrub *scrub) { struct ptlrpc_thread *thread = &scrub->os_thread; struct l_wait_info lwi = { 0 }; /* os_lock: sync status between stop and scrub thread */ spin_lock(&scrub->os_lock); if (!thread_is_init(thread) && !thread_is_stopped(thread)) { thread_set_flags(thread, SVC_STOPPING); spin_unlock(&scrub->os_lock); wake_up_all(&thread->t_ctl_waitq); l_wait_event(thread->t_ctl_waitq, thread_is_stopped(thread), &lwi); /* Do not skip the last lock/unlock, which can guarantee that * the caller cannot return until the OI scrub thread exit. */ spin_lock(&scrub->os_lock); } spin_unlock(&scrub->os_lock); } static void osd_scrub_stop(struct osd_device *dev) { /* od_otable_mutex: prevent curcurrent start/stop */ mutex_lock(&dev->od_otable_mutex); dev->od_scrub.os_paused = 1; do_osd_scrub_stop(&dev->od_scrub); mutex_unlock(&dev->od_otable_mutex); } /* OI scrub setup/cleanup */ static const char osd_scrub_name[] = "OI_scrub"; int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev) { struct osd_thread_info *info = osd_oti_get(env); struct osd_scrub *scrub = &dev->od_scrub; struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt; struct scrub_file *sf = &scrub->os_file; struct super_block *sb = osd_sb(dev); struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es; struct lvfs_run_ctxt saved; struct file *filp; struct inode *inode; struct lu_fid *fid = &info->oti_fid; bool dirty = false; bool restored = false; int rc = 0; ENTRY; memset(scrub, 0, sizeof(*scrub)); OBD_SET_CTXT_MAGIC(ctxt); ctxt->pwdmnt = dev->od_mnt; ctxt->pwd = dev->od_mnt->mnt_root; ctxt->fs = get_ds(); init_waitqueue_head(&scrub->os_thread.t_ctl_waitq); init_rwsem(&scrub->os_rwsem); spin_lock_init(&scrub->os_lock); INIT_LIST_HEAD(&scrub->os_inconsistent_items); push_ctxt(&saved, ctxt); filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644); if (IS_ERR(filp)) { pop_ctxt(&saved, ctxt); RETURN(PTR_ERR(filp)); } inode = file_inode(filp); /* 'What the @fid is' is not imporatant, because the object * has no OI mapping, and only is visible inside the OSD.*/ lu_igif_build(fid, inode->i_ino, inode->i_generation); rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0); if (rc != 0) { filp_close(filp, NULL); pop_ctxt(&saved, ctxt); RETURN(rc); } scrub->os_inode = igrab(inode); filp_close(filp, NULL); pop_ctxt(&saved, ctxt); rc = osd_scrub_file_load(scrub); if (rc == -ENOENT) { osd_scrub_file_init(scrub, es->s_uuid); /* If the "/O" dir does not exist when mount (indicated by * osd_device::od_maybe_new), neither for the "/OI_scrub", * then it is quite probably that the device is a new one, * under such case, mark it as SIF_NO_HANDLE_OLD_FID. * * For the rare case that "/O" and "OI_scrub" both lost on * an old device, it can be found and cleared later. * * For the system with "SIF_NO_HANDLE_OLD_FID", we do not * need to check "filter_fid_old" and to convert it to * "filter_fid" for each object, and all the IGIF should * have their FID mapping in OI files already. */ if (dev->od_maybe_new) sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID; dirty = true; } else if (rc != 0) { GOTO(cleanup_inode, rc); } else { if (memcmp(sf->sf_uuid, es->s_uuid, 16) != 0) { struct obd_uuid *old_uuid; struct obd_uuid *new_uuid; OBD_ALLOC_PTR(old_uuid); OBD_ALLOC_PTR(new_uuid); if (old_uuid == NULL || new_uuid == NULL) { CERROR("%.16s: UUID has been changed, but" "failed to allocate RAM for report\n", LDISKFS_SB(sb)->s_es->s_volume_name); } else { class_uuid_unparse(sf->sf_uuid, old_uuid); class_uuid_unparse(es->s_uuid, new_uuid); CERROR("%.16s: UUID has been changed from " "%s to %s\n", LDISKFS_SB(sb)->s_es->s_volume_name, old_uuid->uuid, new_uuid->uuid); } osd_scrub_file_reset(scrub, es->s_uuid,SF_INCONSISTENT); dirty = true; restored = true; if (old_uuid != NULL) OBD_FREE_PTR(old_uuid); if (new_uuid != NULL) OBD_FREE_PTR(new_uuid); } else if (sf->sf_status == SS_SCANNING) { sf->sf_status = SS_CRASHED; dirty = true; } } if (sf->sf_pos_last_checkpoint != 0) scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1; else scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1; if (dirty) { rc = osd_scrub_file_store(scrub); if (rc != 0) GOTO(cleanup_inode, rc); } /* Initialize OI files. */ rc = osd_oi_init(info, dev, restored); if (rc < 0) GOTO(cleanup_inode, rc); rc = osd_initial_OI_scrub(info, dev); if (rc != 0) GOTO(cleanup_oi, rc); if (sf->sf_flags & SF_UPGRADE || !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID || sf->sf_success_count > 0)) { dev->od_igif_inoi = 0; dev->od_check_ff = dev->od_is_ost; } else { dev->od_igif_inoi = 1; dev->od_check_ff = 0; } if (sf->sf_flags & SF_INCONSISTENT) /* The 'od_igif_inoi' will be set under the * following cases: * 1) new created system, or * 2) restored from file-level backup, or * 3) the upgrading completed. * * The 'od_igif_inoi' may be cleared by OI scrub * later if found that the system is upgrading. */ dev->od_igif_inoi = 1; if (!dev->od_noscrub && ((sf->sf_status == SS_PAUSED) || (sf->sf_status == SS_CRASHED && sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE | SF_AUTO)) || (sf->sf_status == SS_INIT && sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE)))) rc = osd_scrub_start(dev, SS_AUTO_FULL); if (rc != 0) GOTO(cleanup_oi, rc); /* it is possible that dcache entries may keep objects after they are * deleted by OSD. While it looks safe this can cause object data to * stay until umount causing failures in tests calculating free space, * e.g. replay-ost-single. Since those dcache entries are not used * anymore let's just free them after use here */ shrink_dcache_sb(sb); RETURN(0); cleanup_oi: osd_oi_fini(info, dev); cleanup_inode: iput(scrub->os_inode); scrub->os_inode = NULL; return rc; } void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev) { struct osd_scrub *scrub = &dev->od_scrub; LASSERT(dev->od_otable_it == NULL); if (scrub->os_inode != NULL) { osd_scrub_stop(dev); iput(scrub->os_inode); scrub->os_inode = NULL; } if (dev->od_oi_table != NULL) osd_oi_fini(osd_oti_get(env), dev); } /* object table based iteration APIs */ static struct dt_it *osd_otable_it_init(const struct lu_env *env, struct dt_object *dt, __u32 attr) { enum dt_otable_it_flags flags = attr >> DT_OTABLE_IT_FLAGS_SHIFT; enum dt_otable_it_valid valid = attr & ~DT_OTABLE_IT_FLAGS_MASK; struct osd_device *dev = osd_dev(dt->do_lu.lo_dev); struct osd_scrub *scrub = &dev->od_scrub; struct osd_otable_it *it; __u32 start = 0; int rc; ENTRY; /* od_otable_mutex: prevent curcurrent init/fini */ mutex_lock(&dev->od_otable_mutex); if (dev->od_otable_it != NULL) GOTO(out, it = ERR_PTR(-EALREADY)); OBD_ALLOC_PTR(it); if (it == NULL) GOTO(out, it = ERR_PTR(-ENOMEM)); dev->od_otable_it = it; it->ooi_dev = dev; it->ooi_cache.ooc_consumer_idx = -1; if (flags & DOIF_OUTUSED) it->ooi_used_outside = 1; if (flags & DOIF_RESET) start |= SS_RESET; if (valid & DOIV_ERROR_HANDLE) { if (flags & DOIF_FAILOUT) start |= SS_SET_FAILOUT; else start |= SS_CLEAR_FAILOUT; } if (valid & DOIV_DRYRUN) { if (flags & DOIF_DRYRUN) start |= SS_SET_DRYRUN; else start |= SS_CLEAR_DRYRUN; } rc = do_osd_scrub_start(dev, start & ~SS_AUTO_PARTIAL); if (rc < 0 && rc != -EALREADY) { dev->od_otable_it = NULL; OBD_FREE_PTR(it); GOTO(out, it = ERR_PTR(rc)); } it->ooi_cache.ooc_pos_preload = scrub->os_pos_current; GOTO(out, it); out: mutex_unlock(&dev->od_otable_mutex); return (struct dt_it *)it; } static void osd_otable_it_fini(const struct lu_env *env, struct dt_it *di) { struct osd_otable_it *it = (struct osd_otable_it *)di; struct osd_device *dev = it->ooi_dev; /* od_otable_mutex: prevent curcurrent init/fini */ mutex_lock(&dev->od_otable_mutex); do_osd_scrub_stop(&dev->od_scrub); LASSERT(dev->od_otable_it == it); dev->od_otable_it = NULL; mutex_unlock(&dev->od_otable_mutex); OBD_FREE_PTR(it); } static int osd_otable_it_get(const struct lu_env *env, struct dt_it *di, const struct dt_key *key) { return 0; } static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di) { } static inline int osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it) { spin_lock(&scrub->os_lock); if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current || scrub->os_waiting || !thread_is_running(&scrub->os_thread)) it->ooi_waiting = 0; else it->ooi_waiting = 1; spin_unlock(&scrub->os_lock); return !it->ooi_waiting; } static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di) { struct osd_otable_it *it = (struct osd_otable_it *)di; struct osd_device *dev = it->ooi_dev; struct osd_scrub *scrub = &dev->od_scrub; struct osd_otable_cache *ooc = &it->ooi_cache; struct ptlrpc_thread *thread = &scrub->os_thread; struct l_wait_info lwi = { 0 }; int rc; ENTRY; LASSERT(it->ooi_user_ready); again: if (!thread_is_running(thread) && !it->ooi_used_outside) RETURN(1); if (ooc->ooc_cached_items > 0) { ooc->ooc_cached_items--; ooc->ooc_consumer_idx = (ooc->ooc_consumer_idx + 1) & ~OSD_OTABLE_IT_CACHE_MASK; RETURN(0); } if (it->ooi_all_cached) { l_wait_event(thread->t_ctl_waitq, !thread_is_running(thread), &lwi); RETURN(1); } if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) { spin_lock(&scrub->os_lock); scrub->os_waiting = 0; wake_up_all(&scrub->os_thread.t_ctl_waitq); spin_unlock(&scrub->os_lock); } if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current) l_wait_event(thread->t_ctl_waitq, osd_otable_it_wakeup(scrub, it), &lwi); if (!thread_is_running(thread) && !it->ooi_used_outside) RETURN(1); rc = osd_otable_it_preload(env, it); if (rc >= 0) goto again; RETURN(rc); } static struct dt_key *osd_otable_it_key(const struct lu_env *env, const struct dt_it *di) { return NULL; } static int osd_otable_it_key_size(const struct lu_env *env, const struct dt_it *di) { return sizeof(__u64); } static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di, struct dt_rec *rec, __u32 attr) { struct osd_otable_it *it = (struct osd_otable_it *)di; struct osd_otable_cache *ooc = &it->ooi_cache; *(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid; /* Filter out Invald FID already. */ LASSERTF(fid_is_sane((struct lu_fid *)rec), "Invalid FID "DFID", p_idx = %d, c_idx = %d\n", PFID((struct lu_fid *)rec), ooc->ooc_producer_idx, ooc->ooc_consumer_idx); return 0; } static __u64 osd_otable_it_store(const struct lu_env *env, const struct dt_it *di) { struct osd_otable_it *it = (struct osd_otable_it *)di; struct osd_otable_cache *ooc = &it->ooi_cache; __u64 hash; if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1) hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino; else hash = ooc->ooc_pos_preload; return hash; } /** * Set the OSD layer iteration start position as the specified hash. */ static int osd_otable_it_load(const struct lu_env *env, const struct dt_it *di, __u64 hash) { struct osd_otable_it *it = (struct osd_otable_it *)di; struct osd_device *dev = it->ooi_dev; struct osd_otable_cache *ooc = &it->ooi_cache; struct osd_scrub *scrub = &dev->od_scrub; int rc; ENTRY; /* Forbid to set iteration position after iteration started. */ if (it->ooi_user_ready) RETURN(-EPERM); LASSERT(!scrub->os_partial_scan); if (hash > OSD_OTABLE_MAX_HASH) hash = OSD_OTABLE_MAX_HASH; ooc->ooc_pos_preload = hash; if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev))) ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1; it->ooi_user_ready = 1; if (!scrub->os_full_speed) wake_up_all(&scrub->os_thread.t_ctl_waitq); /* Unplug OSD layer iteration by the first next() call. */ rc = osd_otable_it_next(env, (struct dt_it *)it); RETURN(rc); } static int osd_otable_it_key_rec(const struct lu_env *env, const struct dt_it *di, void *key_rec) { return 0; } const struct dt_index_operations osd_otable_ops = { .dio_it = { .init = osd_otable_it_init, .fini = osd_otable_it_fini, .get = osd_otable_it_get, .put = osd_otable_it_put, .next = osd_otable_it_next, .key = osd_otable_it_key, .key_size = osd_otable_it_key_size, .rec = osd_otable_it_rec, .store = osd_otable_it_store, .load = osd_otable_it_load, .key_rec = osd_otable_it_key_rec, } }; /* high priority inconsistent items list APIs */ #define SCRUB_BAD_OIMAP_DECAY_INTERVAL 60 int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic, int insert) { struct osd_inconsistent_item *oii; struct osd_scrub *scrub = &dev->od_scrub; struct ptlrpc_thread *thread = &scrub->os_thread; int wakeup = 0; ENTRY; OBD_ALLOC_PTR(oii); if (unlikely(oii == NULL)) RETURN(-ENOMEM); INIT_LIST_HEAD(&oii->oii_list); oii->oii_cache = *oic; oii->oii_insert = insert; if (scrub->os_partial_scan) { __u64 now = cfs_time_current_sec(); /* If there haven't been errors in a long time, * decay old count until either the errors are * gone or we reach the current interval. */ while (unlikely(scrub->os_bad_oimap_count > 0 && scrub->os_bad_oimap_time + SCRUB_BAD_OIMAP_DECAY_INTERVAL < now)) { scrub->os_bad_oimap_count >>= 1; scrub->os_bad_oimap_time += SCRUB_BAD_OIMAP_DECAY_INTERVAL; } scrub->os_bad_oimap_time = now; if (++scrub->os_bad_oimap_count > dev->od_full_scrub_threshold_rate) scrub->os_full_scrub = 1; } spin_lock(&scrub->os_lock); if (unlikely(!thread_is_running(thread))) { spin_unlock(&scrub->os_lock); OBD_FREE_PTR(oii); RETURN(-EAGAIN); } if (list_empty(&scrub->os_inconsistent_items)) wakeup = 1; list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items); spin_unlock(&scrub->os_lock); if (wakeup != 0) wake_up_all(&thread->t_ctl_waitq); RETURN(0); } int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid, struct osd_inode_id *id) { struct osd_scrub *scrub = &dev->od_scrub; struct osd_inconsistent_item *oii; ENTRY; spin_lock(&scrub->os_lock); list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) { if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) { *id = oii->oii_cache.oic_lid; spin_unlock(&scrub->os_lock); RETURN(0); } } spin_unlock(&scrub->os_lock); RETURN(-ENOENT); } /* OI scrub dump */ static const char *scrub_status_names[] = { "init", "scanning", "completed", "failed", "stopped", "paused", "crashed", NULL }; static const char *scrub_flags_names[] = { "recreated", "inconsistent", "auto", "upgrade", NULL }; static const char *scrub_param_names[] = { "failout", "dryrun", NULL }; static void scrub_bits_dump(struct seq_file *m, int bits, const char *names[], const char *prefix) { int flag; int i; seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n'); for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) { if (flag & bits) { bits &= ~flag; seq_printf(m, "%s%c", names[i], bits != 0 ? ',' : '\n'); } } } static void scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix) { if (time != 0) seq_printf(m, "%s: %llu seconds\n", prefix, cfs_time_current_sec() - time); else seq_printf(m, "%s: N/A\n", prefix); } static void scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix) { if (pos != 0) seq_printf(m, "%s: %llu\n", prefix, pos); else seq_printf(m, "%s: N/A\n", prefix); } int osd_scrub_dump(struct seq_file *m, struct osd_device *dev) { struct osd_scrub *scrub = &dev->od_scrub; struct scrub_file *sf = &scrub->os_file; __u64 checked; __u64 speed; down_read(&scrub->os_rwsem); seq_printf(m, "name: OI_scrub\n" "magic: 0x%x\n" "oi_files: %d\n" "status: %s\n", sf->sf_magic, (int)sf->sf_oi_count, scrub_status_names[sf->sf_status]); scrub_bits_dump(m, sf->sf_flags, scrub_flags_names, "flags"); scrub_bits_dump(m, sf->sf_param, scrub_param_names, "param"); scrub_time_dump(m, sf->sf_time_last_complete, "time_since_last_completed"); scrub_time_dump(m, sf->sf_time_latest_start, "time_since_latest_start"); scrub_time_dump(m, sf->sf_time_last_checkpoint, "time_since_last_checkpoint"); scrub_pos_dump(m, sf->sf_pos_latest_start, "latest_start_position"); scrub_pos_dump(m, sf->sf_pos_last_checkpoint, "last_checkpoint_position"); scrub_pos_dump(m, sf->sf_pos_first_inconsistent, "first_failure_position"); checked = sf->sf_items_checked + scrub->os_new_checked; seq_printf(m, "checked: %llu\n" "updated: %llu\n" "failed: %llu\n" "prior_updated: %llu\n" "noscrub: %llu\n" "igif: %llu\n" "success_count: %u\n", checked, sf->sf_items_updated, sf->sf_items_failed, sf->sf_items_updated_prior, sf->sf_items_noscrub, sf->sf_items_igif, sf->sf_success_count); speed = checked; if (thread_is_running(&scrub->os_thread)) { cfs_duration_t duration = cfs_time_current() - scrub->os_time_last_checkpoint; __u64 new_checked = msecs_to_jiffies(scrub->os_new_checked * MSEC_PER_SEC); __u32 rtime = sf->sf_run_time + cfs_duration_sec(duration + HALF_SEC); if (duration != 0) do_div(new_checked, duration); if (rtime != 0) do_div(speed, rtime); seq_printf(m, "run_time: %u seconds\n" "average_speed: %llu objects/sec\n" "real-time_speed: %llu objects/sec\n" "current_position: %u\n" "lf_scanned: %llu\n" "lf_repaired: %llu\n" "lf_failed: %llu\n", rtime, speed, new_checked, scrub->os_pos_current, scrub->os_lf_scanned, scrub->os_lf_repaired, scrub->os_lf_failed); } else { if (sf->sf_run_time != 0) do_div(speed, sf->sf_run_time); seq_printf(m, "run_time: %u seconds\n" "average_speed: %llu objects/sec\n" "real-time_speed: N/A\n" "current_position: N/A\n" "lf_scanned: %llu\n" "lf_repaired: %llu\n" "lf_failed: %llu\n", sf->sf_run_time, speed, scrub->os_lf_scanned, scrub->os_lf_repaired, scrub->os_lf_failed); } up_read(&scrub->os_rwsem); return 0; }